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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
UCR171349
Abies
George K. Helmkamp, E. A. Helmkamp
2005-10-1
9995
Placer
Northern Sierra Nevada Mtns., NW of Lake Tahoe; Junction of Bear Creek Dr. and Big John Road (c. 2.2 miles west of Calif. Highway 89 and just south of Alpine Meadows Road)
2015
Comment
UCR104848
Abronia villosa
George K. Helmkamp, E. Helmkamp
1998-1-23
2567
Imperial
Sonoran (Colorado) Desert, On the W side of Hwy 86, 18.8 mi. NW of Westmorland
-30
Comment
HSC79209
Acamptopappus sphaerocephalus var. sphaerocephalus
G. K. Helmkamp
1984-4-20
18
San Bernardino
TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road in upper part of TNC area
765
Comment
UCR193284
Acer macrophyllum
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12353
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road 0.6 mile north of Hwy CA-20, at the border of Placer Co.
1387
Comment
SD236171
Achillea millefolium
G. K. Helmkamp, E. A. Helmkamp
2008-7-22
13861
Alpine
Eastern Sierra Nevada Mountains: Blue Lake Road just southeast of its junction with CA-88
2180
Comment
UCR170827
Achillea millefolium
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9962
Placer
Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area)
2081
Comment
UCR235123
Achillea millefolium
George K. Helmkamp, William Barnes
2010-9-4
16931
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
UCR250679
Achillea millefolium
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20690
Calaveras
Northern Sierra Nevada Mountains Foothills, Whiskey Slide Road, just east of West Murray Creek Road, c. 4.7 miles SE of Jesus Maria Road
677
Comment
UCR216029
Achnatherum lemmonii
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15328
Calaveras
Sierra Nevada Mountains, Ganns Meadow Drive just south of its junction with CA-4, 16.7 miles northeast of Arnold
2067
Comment
UCR241375
Achnatherum occidentale subsp. californicum
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19253
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 0.4 mile south of its junction with CA-88/Carson Pass Hwy and W of Lower Bear Reservoir
1643
Comment
SD237295
Achyrachaena mollis
G. K. Helmkamp, E. A. Helmkamp
2010-5-4
15946
Solano
Sacramento Valley: just NE of Vacaville, north side of Vaca Valley Parkway, 0.1 mile west of its junction with Crescent Drive.
35
Comment
UCR104870
Achyronychia cooperi
George K. Helmkamp
1998-3-30
3003
San Bernardino
Mojave Desert, Dale Dry Lake, east of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR122659
Achyronychia cooperi
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2855
San Bernardino
Mojave Desert, north of Calif. Hwy 62 between Joshua Tree and 29 Palms; north on Leer Ave and 0.9 mile E on Amboy Rd.
732
Comment
SD212607
Acmispon americanus var. americanus
G. K. Helmkamp, Elizabeth Helmkamp
2005-7-31
9727
El Dorado
Junction of Ice House Road and Ca Highway 50, east of Pollock Pines.
1006
Comment
UCD104064
Acmispon brachycarpus
G. K. Helmkamp; E. A. Helmkamp
2007-3-25
11711
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 0.9 mile east of its junction with CA-49 at the bridge of the junction with American River forks.
287
Comment
UCD104258
Acmispon nevadensis var. nevadensis
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11053
El Dorado
Northern Sierra Nevada Mtns: along Wright's Lake Road (Forestry Route 4) 3.3 miles north of Hwy US-50.
2049
Comment
CAS-BOT-BC228611
Acmispon parviflorus
George K. Helmkamp; E. A. Helmkamp
2011-6-7
17460
Amador
Northern Sierra Nevada Mountains Foothills: Pine Gulch Road, 0.5 mile north of its intersection with Sutter Creek Road
457
Comment
UCD104274
Acmispon procumbens var. procumbens
G. K. Helmkamp; E. A. Helmkamp
2001-4-29
6562
San Luis Obispo
San Luis Obispo County: Irish Hills: Clark Valley Rd., 2.8 mi S of Los Osos Valley Rd (E of Los Osos).
91
Comment
UCR232164
Adenocaulon bicolor
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16681
Calaveras
Northern Sierra Nevada Mountains, along CA-4 at the Arnold Byway, about 0.3 mile northeast of Arnold
1244
Comment
UCR119244
Adiantum jordanii
George K. Helmkamp, E. A. Helmkamp
1998-6-30
4218
San Luis Obispo
Coast Ranges, Irish Hills
343
Comment
SD224990
Aesculus californica
G. K. Helmkamp, E. A. Helmkamp
1997-6-25
2100
Mendocino
State Hwy 128 about 5 mi. NW of Cloverdale.
427
Comment
UCR87842
Agoseris
George K. Helmkamp, E. A. Helmkamp
1995-6-23
95- 8 -12
Alpine
Sierra Nevada Mtns., Monitor Pass, along Calif. Hwy 89
2530
Comment
UCR14521
Agoseris apargioides
George K. Helmkamp
1974-4-28
s.n.
San Luis Obispo
Central Coast, Cuesta Summit north of [San Luis Obispo] Morro Bay
Comment
CLARK-A1045-1045
Agoseris glauca var. monticola
George K. Helmkamp
1977-7-2
Mono
Long Valley corner of US Highway 395 and Owens River Road; ; ; Old Mammoth 7.5'Q
2194
Comment
CLARK-A1045-499
Agoseris heterophylla
George K. Helmkamp
1979-6-5
#1
San Bernardino
San Bernardino Mountains at the north end of Lake; sagebrush scrub; ; Big Bear City 7.5'Q
2133
Comment
UCR60017
Agropyron cristatum
George K. Helmkamp
1988-9-7
s.n.
Mono
Eastern Sierra Nevada Mountains, Hwy 395, 29 miles north of Inyo Co. line
2195
Comment
UCR209037
Agrostis
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15497
El Dorado
Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 21.6 miles north of CA-50
1716
Comment
UCR124185
Agrostis densiflora
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5720
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR232258
Agrostis gigantea
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16703
Calaveras
Northern Sierra Nevada Mountains, Forest Route 7N23 (Black Creek Road) 0.1 mile north of the junction with CA-4
2005
Comment
UCR233415
Agrostis idahoensis
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18244
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 21.4 rd. miles southeast of Jenkinson's Lake, between Silver Fork Road and Hwy 88, 1.1 mi. NW (331 deg. ) of Alder Hill
2270
Comment
UCR89434
Agrostis idahoensis
George K. Helmkamp
1990-8-2
s.n.
Mono
Sierra Nevada Mtns, between Mammoth and Lake Mary
2591
Comment
UCD67032
Agrostis pallens
G. K. Helmkamp; E. A. Helmkamp
2007-9-11
12923
El Dorado
Northern Sierra Nevada Mountains: Along Hwy. US-50, 0.4 mile southwest of Phillips.
1829
Comment
SEINET9260361
Agrostis scabra
George K. Helmkamp, Amy Barnes
2013-1
22322
Alpine
Northern Sierra Nevada Mountains: northern edge of Mosquito Lake along CA-4/Ebbetts Pass road (Pacific Valley 7.5' Q)
Comment
UCD66099
Agrostis scabra
G. K. Helmkamp; E. A. Helmkamp
2007-8-16
12761
Amador
Northern Sierra Nevada Mountains: along the south side of Bear River Reservoir just east of the spillway.
1777
Comment
UCR176474
Agrostis scabra
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11187
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road
2250
Comment
UCR252985
Agrostis scabra
George K. Helmkamp, Amy Barnes
2013-9-23
22322
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
LA103347
Agrostis scabra
G. K. Helmkamp;
1905-9-10
885 -45
Mono
edge of Lake Mamie, bordered by Yellow Pine Forest
2590
Comment Read comments Aug 23 2019
CAS-BOT-BC334492
Agrostis stolonifera
G. K. Helmkamp; Amy Barnes
2013-9-24
22381
Tuolumne
Northern Sierra Nevada Mountains: Boards Crossin gof the North Fork of the Stanislaus River
1244
Comment
SEINET3257987
Agrostis stolonifera
George K. Helmkamp, E. A. Helmkamp
2007-9-4
12893
Amador
Northern Sierra Nevada Mountains; along CA-88 at Mile-49, 3.1 miles east of Hams Station.
1860
Comment
UCD74335
Agrostis stolonifera
G. K. Helmkamp; E. A. Helmkamp
2007-8-29
12841
Yuba
Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville.
817
Comment
UCR242795
Agrostis variabilis
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16909
Amador
Northern Sierra Nevada Mountains, Dufrene Road 0.7 mile east of its junction with CA-88, north of Lower Bear River Reservoir
2044
Comment
UCR261994
Agrostis variabilis
George K. Helmkamp, Amy Barnes
2014-10-10
23146
Amador
Northern Sierra Nevada Mountains, Plasse Road at the south end of Silver Lake and 0.1 mile north of Plasse's Resort
2215
Comment
RSA0081169
Ailanthus altissima
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11465
Amador
Along Calif. Hwy 49 near Enterprise, 1.8 miles south of El Dorado Co. line.
274
Comment
UCR179567
Ailanthus altissima
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11465
Amador
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 near Enterprise, 1.8 miles south of El Dorado Co. line
274
Comment
UCR160376
Aira caryophyllea
George K. Helmkamp, E. A. Helmkamp
2005-6-7
9540
San Luis Obispo
Outer South Coast Ranges, along Huasna Road, 1.3 mile west of Huasna Townsite Road
305
Comment
CAS-BOT-BC520349
Alisma lanceolatum
George K. Helmkamp; E. A. Helmkamp
2012-10-9
20002
Nevada
Northern Sierra Nevada Mountains Foothills: Higgins Corner, Combie Road, 0.1 mi E of jct with CA-49, between Auburn and Grass Valley
445
Comment
SD237250
Allium campanulatum
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15265
El Dorado
Sierra Nevada Mountains: Wrights Lake Road, 4.1 miles north of its junction with US-50 and at the north sie of Lyons Creek crossing.
2015
Comment
SD237252
Allium campanulatum
G. K. Helmkamp, E. A. Helmkamp
2010-7-13
16550
Alpine
Northern Sierra Nevada Mountains: Sno-Park area at Carson Pass; northeast side of CA-88 across from the trailside parking area.
2613
Comment
UCD138508
Allium campanulatum
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-19
10744
El Dorado
Northern Sierra Nevada Mountains: 6.0 miles east of Ice House Road on the road to Wright's Lake.
2000
Comment
CLARK-A1045-511
Allium fimbriatum
George K. Helmkamp
1979-6-5
#1
San Bernardino
San Bernardino Mountains north of State Highway 38 at north end of Lake; sagebrush scrub at edge of junipers; ; Big Bear City 7.5' Q
2133
Comment
UCR206607
Allium validum
George K. Helmkamp, Ann Kerchner
2009-7-25
15283
Amador
Sierra Nevada Mountains, south side of CA-88, 3.2 miles west of the Alpine Co. line; near Martin Meadow
2306
Comment
UCR157807
Allophyllum gilioides
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4198
Kern
Tehachapi Mountains, Tehachapi Mountain Park, 4.2 miles SW of Highline Road along Water Canyon Road
1768
Comment
RSA792070
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19396
Amador
Northern Sierra Nevada Mountains: edge of Martin Meadow along CA-88 (Carson Pass highway), 2.2 miles north of Silver Lake.
2317
Comment
RSA794816
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2010-8-7
16729
El Dorado
Silver Fork Road, 0.4 mile east of its junction with Mormon Emigrant Trail, at Jim Quinn Spring.
2136
Comment
SD239870
Allophyllum integrifolium
G. K. Helmkamp, E. A. Helmkamp
2011-8-6
17952
Amador
Northern Sierra Nevada Mountains: Ellis Road, 2.1 miles south of its junction with CA-88 (Peddler Hill 7.5'Q)
1794
Comment
SD248472
Allophyllum integrifolium
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-19
20913
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, north side of its junction with Mormon Emigrant Trail (Tragedy Spring 7.5'Q)
2188
Comment
SEINET11266308
Allophyllum integrifolium
George Helmkamp, E. A. Helmkamp
2010-8-7
16729
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, 0.4 mile east of its junction with Mormon Emigrant Trail, at Jim Quinn Spring (Tragedy Spring 7.5' Q.); 0
2135
Comment
SEINET4691406
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2010-1
16729
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, 0.4 mile east of its junction with Mormon Emigrant Trial, at Jim Quinn Spring.
2136
Comment
UCR206732
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15093
El Dorado
Sierra Nevada Mountains, Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR229554
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17903
Placer
Northern Sierra Nevada Mountains, Bowman Lake Road, 0.9 mile north of its junction with CA Hwy 20, 0.85 mi. NE (23 deg. ) of Emigrant Gap and N of I-80
1434
Comment
UCR233353
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18264
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road, 0.6 miles north of its junction with CA-88
2136
Comment
UCR237716
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19396
Amador
Northern Sierra Nevada Mountains, edge of Martin Meadow along CA-88 (Carson Pass Hwy), 2.2 miles north of Silver Lake
2317
Comment
UCR121530
Alnus rhombifolia
George K. Helmkamp, E. A. Helmkamp
2002-4-21
7617
San Luis Obispo
Central Coast, Santa Rosa Creek Rd., 11.2 mi east of Cambria
396
Comment
CAS-BOT-BC523902
Amaranthus albus
George K. Helmkamp; Mary Alice Barnes
2013-5-17
20629
Calaveras
Northern Sierra Nevada Mountains Foothills: Poloma Rd at its jct with Cosgrove Creek Rd., 3 mi NE (30 deg. ) of Valley Springs
278
Comment
SEINET3856760
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17037
Sutter
Sacramento Valley: Pleasant Grove Road 0.1 mile N of the junction with Marcum Road, S of Nicolaus Ave., 2 miles SE of Trowbridge
17
Comment
UCD97158
Amaranthus albus
G. K. Helmkamp; E. A. Helmkamp
2007-9-22
12992
El Dorado
Northern Sierra Nevada Mountains: along Pleasant Valley Road (Hwy CA-49) 0.8 mile west of its junction with Missouri Flat Road in Diamond Springs.
532
Comment
UCR194720
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13082
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
UCR201740
Amaranthus blitoides
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14213
Sutter
Sacramento Valley, South Butte Road 1.2 miles northwest of junction with CA-20, west of Yuba City
23
Comment
SEINET270119
Ambrosia acanthicarpa
G. Helmkamp
1993-9-22
34 -10
San Bernardino
6.7 miles up Burns Canyon from the junction of Pioneer Town and Pipes Canyon roads
1524
Comment
UCR104874
Ambrosia dumosa
George K. Helmkamp
1998-4-4
3148
Riverside
Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd)
457
Comment
UCR130999
Ambrosia eriocentra
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3519
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
CLARK-A1045-747
Amphipappus fremontii
George K. Helmkamp
1977-5-14
San Bernardino
Mesquite Mountains limestone canyon east of Winters Pass; ; Clark Mt. 15'Q
1097
Comment
SD241775
Amsinckia intermedia
G. K. Helmkamp, E. A. Helmkamp
2010-4-17
15895
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area.
305
Comment
UCR140106
Amsinckia intermedia
George K. Helmkamp
2004-2-7
8255
San Luis Obispo
Central Coast, SE of Oceano along Halcyon Rd., just east of Mesa View Dr.
76
Comment
UCR217879
Amsinckia intermedia
George K. Helmkamp, Laurel Bezdecheck
2010-5-29
16138
El Dorado
Sierra Nevada Mountains Foothills, along Perry Creek, about 0.2 mile south of Slug Gulch Road, at a point 4.7 miles east of junction with Perry Creek Road
1027
Comment
UCR222550
Amsinckia intermedia
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15895
Placer
Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area
305
Comment
UCR237311
Amsinckia intermedia
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18761
Butte
Northwestern Sacramento Valley, entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River
46
Comment
UCR250187
Amsinckia intermedia
George K. Helmkamp
2013-3-14
20168
Calaveras
Central Sierra Nevada Foothills, Junction of CA-26 and Paloma Road southwest of Mokelumne Hill
470
Comment
UCR173162
Amsinckia lycopsoides
George K. Helmkamp, Elizabeth Helmkamp
2006-4-25
10223
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento and just SW of Placerville. Forni road between US Hwy 50 and Diamond Springs, at Weber Creek
488
Comment
UCR207886
Amsinckia retrorsa
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14581
Placer
Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake
732
Comment
UCR91832
Amsinckia spectabilis var. spectabilis
George K. Helmkamp
1996-5-27
1084
San Luis Obispo
Central Coast, Los Osos, northeast of the corner of Martingale Avenue and Buckskin Drive
61
Comment
UCR101087
Amsinckia tessellata var. tessellata
George K. Helmkamp, E. A. Helmkamp
1998-4-7
3184
Kern
3 mi. north of Maricopa on Calif. Hwy 33
252
Comment
RSA567424
Amsonia brevifolia var. tomentosa
George K. Helmkamp
1993-9-22
35 -6
San Bernardino
Steep canyon side with Pinon Pine. 14.4 mi. up Burns Canyon from junction of Pioneer Town and Pipes Cyn Rds.
2073
Comment
UCR123376
Anagallis arvensis
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5055
Placer
Sierra Nevada Foothills, corner of Dry Creek Rd & Bowman Rd, near Nielsburg, 3 mi NE of Auburn beside I-80 & 1.5 NW of North Fork Lake on American River
457
Comment
UCD128839
Anaphalis margaritacea
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11009
El Dorado
Northern Sierra Nevada Mountains: Echo Summit along Hwy US-50; at entrance to the road maintenance station.
2245
Comment
UCR261983
Anaphalis margaritacea
George K. Helmkamp, Amy Barnes
2014-10-10
23135
Amador
Northern Sierra Nevada Mountains, west side of Bear River Reservoir, 0.2 mile north of the dam
1796
Comment
UCD67030
Andropogon virginicus var. virginicus
G. K. Helmkamp; E. A. Helmkamp
2007-9-9
12913
Sacramento
Sacramento Valley: Along Hwy. CA-16, 0.8 mile west of the Amador County line.
85
Comment
SD243059
Angelica breweri
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16680
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 1.8 miles east of Forest Route 13 / American Hill Road. Burn area north of the road.
1662
Comment
UCD127127
Angelica breweri
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11026
El Dorado
Northern Sierra Nevada Mtns: North Truckee River Rd., 1.4 miles north of CA-50 and ca. 6 miles south of Lake Tahoe.
2009
Comment
UCR176204
Angelica breweri
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11106
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
UCR14463
Angelica lineariloba
George K. Helmkamp
1974-6-10
s.n.
Inyo
Sierra Nevada Mtns., Pine Creek, NW part of county
2287
Comment
UCR124009
Angelica tomentosa
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6950
Trinity
North Coast Range; Trinity Mountains, Calif. Hwy 36, 7 mi west of Wildwood at Telephone Ridge
1280
Comment
UCR122884
Anisocarpus madioides
George K. Helmkamp, E. A. Helmkamp
2001-5-29
6703
San Benito
South Coast Range, Gabilan Range, 7.1 mi. south of San Juan Bautista on Hwy G-1
488
Comment Read comments Jan 7 2013
UCR124005
Antennaria argentea
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6943
Trinity
Trinity Mountains, Calif. Hwy 36, 2.2 mi west of the Trinity/Shasta Co. line
1159
Comment
RSA785463
Antennaria corymbosa
George K. Helmkamp, Amy Barnes, Ann Kerchner
2010-7-19
16582
El Dorado
Southernmost point of Wright's Lake, 5.6 mi. NE (33 deg. ) of Kyburz
2085
Comment
UCR59790
Antennaria rosea
George K. Helmkamp
1989-7-31
s.n.
Mono
Sierra Nevada Mtns, just south of Mammoth Village [in Mammoth Lakes] and at the edge of Snow Creek [Golf Course]
2439
Comment
UCD128943
Antennaria rosea subsp. rosea
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10958
El Dorado
Northern Sierra Nevada Mtns Mount Ralston Trail and Hwy US-50, about 0.9 mile south of Twin Bridges.
1960
Comment
UCR218639
Anthemis cotula
George K. Helmkamp, E. A. Helmkamp
2010-6-4
16219
Sonoma
North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), about five miles east of its junction with US-101, 5.85 air mi. east (88 deg. ) of Windsor
145
Comment
UCR101615
Anthriscus caucalis
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3745
San Mateo
Portola Valley, Golden Hills Rd along Los Trancos Creek
107
Comment
UCR176282
Anthriscus caucalis
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10427 B
Placer
Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49
293
Comment
SEINET3282795
Apocynum androsaemifolium
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15208
Placer
Sierra Nevada Mountains; Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point.
1698
Comment
UCR124006
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6955
Trinity
North Coast Range; Trinity Mountains, Calif. Hwy 36, 7 mi west of Wildwood at Telephone Ridge
1280
Comment
UCR129529
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2001-5-31
6752
Santa Clara
San Francisco Bay, Mt. Hamilton Rd. east of San Jose at Mile-15
290
Comment
UCR175718
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10928
El Dorado
Northern Sierra Nevada Mountains, 0.3 mile west of the junction of Wright's Lake Road and the road from Ice House Reservoir
2012
Comment
UCR229407
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17940
El Dorado
Northern Sierra Nevada Mountains, North-South Road, 5.5 miles north of its junction with Omo Ranch Road, east side of bridge over Pi Pi Creek
1209
Comment
UCR233286
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16955
El Dorado
Northern Sierra Nevada Mountains, Forest Route 31, 3.4 miles north of its junction with Peavine Ridge Road and Round Tent Canyon Road
1463
Comment
UCD114105
Arabidopsis thaliana
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11844
Calaveras
Northern Sierra Nevada Mountains: Chili Gulch near McSorley Ranch, along Hwy CA-49, 5.1 miles south of the Amador County line.
370
Comment
UCR188444
Arabidopsis thaliana
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11868
El Dorado
Foothills, Northern Sierra Nevada Mountains, junction of Ice House Road and White Meadows Road, about 2 miles northwest of US-50
1029
Comment
UCR14650
Arabis perennans
George K. Helmkamp
1975-6-6
s.n.
San Bernardino
Eastern Mojave Desert, Clark Mountain [area, Mescal Range], Mountain Pass, 0.5 mi south of Interstate 15
1463
Comment
UCR163127
Arctostaphylos glandulosa subsp. mollis
George K. Helmkamp
1993-3-5
s.n.
San Luis Obispo
Central Coast, just north of Montana de Oro State Park
30
Comment
UCR197618
Arctostaphylos patula
George K. Helmkamp, E. A. Helmkamp
2008-5-15
13435
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 1.2 miles north of its junction with US-50
1817
Comment
UCD61872
Arctostaphylos viscida subsp. viscida
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-13
10186
El Dorado
Northern Sierra Nevada Foothills: El Dorado National Forest, along Volcanoville Road, 7.7 mi. N of Wentworth Springs road (NE of Georgetown).
915
Comment
UCR184381
Arctostaphylos viscida subsp. viscida
George K. Helmkamp, E. A. Helmkamp
2007-1-31
11587
El Dorado
Foothills, northern Sierra Nevada Mountains, west of Shingle Springs, end of Palmer Drive, 0.5 mi northeast of the junction of Cameron Park Rd and Calif. Hwy 50
402
Comment
CLARK-A1045-72
Arenaria douglasii
George K. Helmkamp
1978-5-20
Riverside
San Jacinto Mountains dry slope between meadow and sagebrush, just northwest of Kensworthy Forest Station; Idyllwild 15'Q
Comment
RSA794860
Arenaria kingii subsp. compacta
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18126
Alpine
Tamarack Road, 0.1 mile east of its junction with Blue Lakes Road
2485
Comment
CLARK-A1045-821
Arenaria macradenia
George K. Helmkamp
1978-5-6
#1
San Bernardino
Mesquite Mountains lime kilns; ; Clark Mt. 15'Q
Comment
UCR118284
Arida arizonica
George K. Helmkamp, E. A. Helmkamp
1998-4-19
3347
San Bernardino
Mojave Desert, northwest side of East Cronese Lake, about 15 miles west of Baker
335
Comment
RSA615342
Aristida adscensionis
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2701
Riverside
Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains
Comment
SBBG83898
Aristida adscensionis
G. K. Helmkamp
1986-10-18
San Bernardino
Whipple Mtns, along Havasu Palms Rd, ca. 3 mi NW of Black Meadow Landing Rd
396
Comment
UCR104027
Aristida adscensionis
George K. Helmkamp
1998-4-4
3155
Riverside
Sonoran (Colorado) Desert, 7.1 miles north of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station
305
Comment
UCR92639
Aristida adscensionis
George K. Helmkamp
1995-3-16
s.n.
Riverside
Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center
200
Comment
UCR122371
Armeria maritima subsp. californica
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7017
Humboldt
North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay
15
Comment
UCR14374
Arnica chamissonis
George K. Helmkamp
1974-7-27
s.n.
Mono
Owens Valley, Owens River, Big Springs
2195
Comment
UCR245604
Artemisia cana subsp. bolanderi
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22214
Alpine
Northern Sierra Nevada Mountains, Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89
1924
Comment
HSC104159
Artemisia douglasiana
G. K. Helmkamp, E. A. Helmkamp
2012-1
19874
Amador
Northern Sierra Nevada Mountains; along Hwy. E-26 (Red Corral/West Point-Pioneer Rd.) just north of the bridge over the North Fork Mokelumne River
613
Comment
SEINET2441561
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15357
Alpine
Sierra Nevada Mountains: along CA-4 at milepost 30, 1.6 miles south of its junction with CA-89; along East Fork Carson River (Heenan Lake 7.5' Q.).
1787
Comment
UCR130071
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6902
Tehama
Northern Sierra Nevada Mountains, SE of Mt. Lassen; Calif. Hwy 36/89 at Gurnsey Creek, about 2 mi north of junction with Calif. Hwy 32
1448
Comment
UCR178636
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11394
Alpine
Northern Sierra Nevada Mountains, west end of Caples Lake at a dam; alongside CA Hwy 88
2335
Comment
UCR232647
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2011-9-30
18340
Placer
Northern Sierra Nevada Mountains Foothills, Diggins Hill Road at the south side of the Bear River Reservoir, 1.1 miles north of Dutch Flat
852
Comment
UCR67466
Artemisia douglasiana
George K. Helmkamp
1990-9-23
G- 9
Lassen
north of Ravendale
1677
Comment
UCR76721
Artemisia douglasiana
George K. Helmkamp
1993-7-20
E- 4
Santa Clara
San Francisco Bay Region, Above Stevens Creek Reservoir, SE of Cupertino
488
Comment
HSC79219
Artemisia dracunculus
G. K. Helmkamp
1983-10-8
- 6
San Bernardino
TNC Big Morongo Preserve, Morongo Valley, near the house in the San Bernardino County-owned area
762
Comment
SD224823
Artemisia dracunculus
G. K. Helmkamp
1997-9-29
2421
Inyo
Onion Valley in the Sierra Nevado Mnts W of Independence.
2804
Comment
UCR141113
Artemisia ludoviciana
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4269
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR114371
Artemisia tridentata subsp. vaseyana
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2274
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCR257743
Artemisia tridentata subsp. vaseyana
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19470
Sierra
Northern Sierra Nevada Mountains, Little Truckee River valley along Hwy CA-89, 3.5 road miles north of the Nevada County line, 9.6 air miles SE (136 deg. ) of Sierraville
1878
Comment
RSA0012140
Asclepias cordifolia
George K. Helmkamp, E. Helmkamp
2011-7-7
17641
El Dorado
Park Creek Road, 0.4 mile east of its junction with Old Sly Park Road, southeast of Pollock Pines, 0.7 mi. SSW (191 deg ) of Fresh Pond
1250
Comment
UCR189598
Asclepias cordifolia
George K. Helmkamp, Elizabeth Helmkamp, Amy Barnes
2007-6-20
12366
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 13.2 miles ESE of its junction with Sly Park Road at Jenkinson Lake
1976
Comment
UCR169861
Asclepias eriocarpa
George K. Helmkamp
2004-6-12
8631
Santa Barbara
Southern outer coast ranges., Along Calif. Hwy 135, 0.9 mi N of San Antonio Rd (S of Orcutt)
152
Comment
UCD121333
Asclepias fascicularis
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12583
El Dorado
Northern Sierra Nevada Mountains: Traverse Creek Road at the crossing of Traverse Creek; about 2 miles southeast of its junction with CA-193.
732
Comment
UCR230757
Asclepias fascicularis
George K. Helmkamp, E. A. Helmkamp
2010-10-1
16994
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 1.1 miles southwest of its junction with Hale Road, 2.5 mi. NW (285 deg. ) of Volcano
692
Comment
UCR274884
Asclepias fascicularis
George K. Helmkamp
1974-7-27
s.n.
Inyo
Pleasent Valley, Owens River 9 miles NW of Bishop
1313
Comment
UCR252989
Aster alpigenus var. andersonii
George K. Helmkamp, Amy Barnes
2013-9-23
22326
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
RSA0013372
Aster eatonii
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16888
Amador
Northern Sierra Nevada Mountains: along CA-88, 2.6 miles southwest of its junction with Mormon Emigrant Trail, e. 2.75 mi NNW of Upper Bear River Reservoir.
2162
Comment
UCR179225
Aster foliaceus
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11372
El Dorado
Northern Sierra Nevada Mountains, Along Calif. Hwy 89, 1.2 miles west of the Alpine County line. General area of Luther Pass and Grass Lake
2363
Comment
UCR190209
Aster foliaceus var. parryi
George K. Helmkamp, E. A. Helmkamp
2007-9-4
12890
Amador
Northern Sierra Nevada Mountains, along CA-88 at Mile-49, 3.1 miles east of Hams Station
1860
Comment
UCR257730
Aster foliaceus var. parryi
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19520
Placer
Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary
2136
Comment
RSA747378
Aster integrifolius
George K. Helmkamp, Mary Alice Barnes, Amy Barnes
2008-7-28
13911
El Dorado
Northern Sierra Nevada Mountains: Wrights Lake Road, 3.4 miles north of its junction with CA Hwy 50.
2043
Comment
UCR176025
Aster occidentalis
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11034
El Dorado
Northern Sierra Nevada Mtns, 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd
2226
Comment
UCR238598
Aster occidentalis
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16850
Nevada
Northern Sierra Nevada Mountains, Donner Pass Road, 0.8 mile west of its junction with Hwy. I-80, 0.65 mi. NE (62 deg. ) of Kingvale
1921
Comment
RSA0035726
Aster occidentalis var. occidentalis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-8-14
22235
Alpine
Silver Creek, along CA-4, 5.0 miles west of its junction with CA-89
1927
Comment
RSA714090
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2005-10-1
9983
Placer
Northern Sierra Nevada Mts.: NW of Lake Tahoe; Junction of Bear Creek Road and Big John Drive (ca. 2.2 miles west of CA Highway 89 and just south of Alpine Meadows Road)
2015
Comment
UCR115841
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5883
Mono
Eastern Sierra Nevada Mountains, Humboldt-Toiyabe National Forest, 5.1 mi west of US Hwy 395 at Conway Summit, east of Trumbull Lake, on Virginia Lake Road
2927
Comment
UCR176466
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11073
El Dorado
Northern Sierra Nevada Mountains, along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Hwy US-50
1864
Comment
UCR242838
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16896
El Dorado
Northern Sierra Nevada Mountains, Mehrten Springs Road, 0.6 mile north of its junction wtih CA-88
2018
Comment
UCR257647
Aster occidentalis var. occidentalis
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19494
Sierra
Northern Sierra Nevada Mountains, Stampede Dam Road, 1.7 miles north of the Nevada County line, just east of Stampede Reservoir
1770
Comment
UCR258989
Aster occidentalis var. occidentalis
George K. Helmkamp, Amy Barnes
2014-9-16
23073
Alpine
Eastern Sierra Nevada Mountains, Paynesville, junction of Chambers Lane and Diamond Valley Road along West Fork Carson River
1593
Comment
UCR233002
Aster oregonensis
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18330
El Dorado
Northern Sierra Nevada Mountains, Loon Lake Road at the junction to the campground at the south end of the lake
1973
Comment
CLARK-A1045-1327
Aster spinosus
George K. Helmkamp
1977-10-9
San Diego
Imperial Beach along 19th Street; weed in farmland; Imperial Beach 7.5'Q
Comment
SD237418
Astragalus bolanderi
G. K. Helmkamp, E. A. Helmkamp
2010-7-23
16615
El Dorado
Northern Sierra Nevada Mountains: Forestry Route 42, 0.2 mile west of its junction with Wright's Lake Road and beside Silver Creek, 4 miles NE (31a^z) of Kyburz.
2021
Comment
SEINET3860251
Astragalus bolanderi
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16615
El Dorado
Northern Sierra Nevada Mountains: Forestry Route 42, 0.2 mile west of its junction with Wright's Lake Road and beside Silver Creek, 4 miles NE of Kyburz.; 0
2021
Comment
UCD104657
Astragalus bolanderi
G. K. Helmkamp; E. A. Helmkamp
2007-9-11
12924
El Dorado
Northern Sierra Nevada Mountains: Along Hwy. US-50, 0.4 mile southwest of Phillips.
1829
Comment
RSA614979
Astragalus didymocarpus
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3229
San Luis Obispo
Elkhorn Grade Rd, 13.7 mi. NW of jct with CA hwy 33 (roughly WNW of Maricopa).
579
Comment
UCR130246
Astragalus didymocarpus
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6501
Kern
Tehachapi Mtns, Hart Flat turnoff from Calif. Hwy 58
884
Comment
UCR121469
Astragalus douglasii
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5048
Nevada
Northern Sierra Nevada Range, Prosser Creek at Hobart Mills, c. 50-100 yards east of Calif. Hwy 89, NE of Lake Tahoe
1707
Comment
UCR160966
Astragalus douglasii
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9656
San Luis Obispo
Central Coast Range, along Calif. Hwy 58 (Carrizo Hwy), 22.2 miles east of Santa Margarita; near Camatta Creek
552
Comment
UCR100787
Astragalus lentiginosus var. nigricalycis
George K. Helmkamp, E. A. Helmkamp
1998-4-7
3187
Kern
3 mi. north of Maricopa on Calif. Hwy 33
252
Comment
SD224950
Astragalus lentiginosus var. variabilis
G. K. Helmkamp
1998-4-4
3106
San Bernardino
Mojave Desert: S edge of Cadiz Dry Lake, 13.1 mi. N of mile-marker 76 on CA hwy 62 (Twentynine Palms Hwy), E of Twentynine Palms.
182
Comment
UCR15568
Astragalus malacus
George K. Helmkamp
1978-5-30
s.n.
Mono
Eastern Sierra Nevada Mtns., c. 2 mi north of Conway Summit of Hwy US-395
2134
Comment
UCR158593
Astragalus nuttallii var. nuttallii
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8686
Santa Barbara
South central coast, Surf. Southern Pacific RR parking lot NW of Lompoc
12
Comment
SD224954
Astragalus tricarinatus
G. K. Helmkamp
1998-4-3
3087
Riverside
Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging station along the creek.
747
Comment
RSA628858
Astragalus trichopodus var. lonchus
George K. Helmkamp, E. A. Helmkamp
1999-2-26
4629
San Diego
Chula Vista: City Preserve W of E Street on the grounds of the old munitions manufacturing area.
6
Comment
UCR134417
Astragalus trichopodus var. phoxus
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6577
San Luis Obispo
Irish Hills, Clark Valley Rd., 3.8 mi south of Los Osos Valley Rd., east of Los Osos
213
Comment
UCR219635
Athyrium filix-femina var. cyclosorum
George K. Helmkamp, E. A. Helmkamp
2009-10-22
15700
El Dorado
Sierra Nevada Mountains Foothills, Pollock Pines, Blair Road just south of its junction with Forebay Road
1125
Comment
UCR92484
Atrichoseris platyphylla
George K. Helmkamp
1995-3-16
s.n.
Riverside
Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center
200
Comment
UCR100867
Atriplex polycarpa
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2707
Riverside
Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns.
198
Comment
UCR161246
Atriplex semibaccata
George K. Helmkamp, E. A. Helmkamp
2004-11-18
8867
Santa Barbara
South Central Coast, Ocean Beach Park along Ocean Ave (Calif. highway 246), NW of Lompoc and just south of Surf railroad station
11
Comment
UCR230747
Atriplex subspicata
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17035
Sutter
Sacramento Valley, Pleasant Grove Road 0.1 mile north of the junction with Marcum Road, S of Nicolaus Ave., 2 miles SE (105 deg. ) of Trowbridge
17
Comment
UCR131921
Atriplex triangularis
George K. Helmkamp
2003-9-8
8128
San Luis Obispo
Central Coast, Saltwater ocean inlet 0.2 mile SW of Oceano Airport
6
Comment
UCR59470
Atriplex triangularis
George K. Helmkamp
1989-8-6
s.n.
San Luis Obispo
Central Coast, Baywood Park, at the south edge of Morro Bay
3
Comment
SEINET3821625
Avena fatua
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15773
Amador
Eastern San Joaquin Valley/ Sierra Nevada Foothills, low foothills along CA-16, 6.8 miles west of Plymouth near Forest Home Rd. (Irish Hill 7.5' Q)
177
Comment
UCR95910
Baccharis glutinosa
George K. Helmkamp
1996-9-22
1216
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
UCR201551
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14260
Colusa
Sacramento Valley, along River Road (generally following the Sacramento River), 1.1 miles north of Colusa
18
Comment
UCR121594
Baccharis salicifolia
George K. Helmkamp, E. A. Helmkamp
2002-4-22
7433
San Benito
San Andreas rift zone., Bitterwater Valley along Calif. Hwy 25, 17.6 mi north of Calif. Hwy 198
518
Comment
UCR101616
Baileya pauciradiata
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2766
San Bernardino
Mojave Desert, East Cronese Dry Lake. 0.2 mi south of I-15 on Basin Rd.
332
Comment
UCR120519
Baileya pleniradiata
George K. Helmkamp, E. A. Helmkamp
2001-3-17
6276
Imperial
Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd.
76
Comment
UCR201752
Bassia hyssopifolia
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13979
Alpine
Northern Sierra Nevada Mountains, along CA-89 at Grass Lake, 0.9 mile west of Luther Pass
2354
Comment
SD143951
Beta vulgaris
G. Helmkamp
1997-2-1
1298
Imperial
Southwest of Niland, along Sinclair Road and just east of Hatfield Road. Common in mud beside irrigation ditch. (IPB 10/07)
-54
Comment Read comments Feb 20 2010
SEINET3246130
Bidens frondosa
G. K. Helmkamp, E. A. Helmkamp
2009-1
15605
El Dorado
Sierra Nevada Mountains Foothills: Lake Oaks Mobile Home Park, Diamond Springs; 0.2 mile south of the junction of Patterson Drive and CA-49/Pleasant Valley Road.
Comment
UCSB70080
Bidens frondosa
Helmkamp, G.; Helmkamp, E.
2007-9-14
Placer
Foothills, northern Sierra Nevada Mountains: along Mosquito Ridge Road 0.4 mile east of Foresthill
942
Comment
UCD98827
Bistorta bistortoides
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10896
El Dorado
Northern Sierra Nevada Mtns. Wright's Lake Road, 6.1 miles north of Hwy US-50; at the junction with the road from Ice House Reservoir.
2029
Comment
SBBG129053
Boechera rectissima
G. K. Helmkamp, E. A. Helmkamp
2013-6-15
20870
El Dorado
Silver Fork Rd, 2.3 mi S of its jct with US-50 in Kyburz
1454
Comment
UCR59817
Bouteloua barbata
George K. Helmkamp
1989-9-17
s.n.
Imperial
Sonoran (Colorado) Desert, Colorado River Valley; 0.5 mi west of Palo Verde at 4th Street
72
Comment
SBBG129069
Boykinia occidentalis
G. K. Helmkamp, E. A. Helmkamp
2013-6-5
20763
Sierra
CA-49, 1.2 mi N of the Yuba County line
901
Comment
SEINET3245625
Brassica geniculata
G. K. Helmkamp, E. A. Helmkamp
2009-1
15663
El Dorado
Sierra Nevada Mountains Foothills; Cedar Ravine Road at the junction with Camp Nauvoo Road, 0.1 mile south of Weber Creek and c. 2.4 mi. SE of Placerville (Placerville 7.5')
567
Comment
UCR188527
Brassica geniculata
George K. Helmkamp, E. A. Helmkamp
2007-9-24
13008
Calaveras
Northern foothills, Sierra Nevada Mountains, in Rich Gulch along Gwin Mine Road, 1.2 miles north of Paloma
329
Comment
UCR232657
Brassica geniculata
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18379
Glenn
Northern Sacramento Valley, along CA-45, 1.2 miles north of Princeton; Sacramento River side of the levee between the highway and Packer Island
29
Comment
UCR235304
Brassica geniculata
George K. Helmkamp, E. A. Helmkamp
2011-11-19
18463
Sacramento
Eastern Sacramento Valley, Scott Road, 5.9 miles south of its junction with Placerville Road, along Deer Creek, N of Rancho Murieta
53
Comment
UCR169230
Brassica kaber
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8907
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UCR253477
Brassica kaber
George K. Helmkamp
2014-4-5
22690
Amador
Eastern edge of San Joaquin Valley/lower Sierra Nevada Foothills, Sutter Creek along West Marlette Street, 0.1 mile east of Dave Brubeck Road, west end of city of Ione
85
Comment
UCR158584
Brassica nigra
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8672
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR160921
Brassica rapa
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9534
San Luis Obispo
Central Coast, San Simeon Creek, 0.1 mile east of Calif. Hwy 1
9
Comment
UCR237463
Brassica rapa
George K. Helmkamp, E. A. Helmkamp
2012-2-23
18569
Sutter
Sacramento Valley, east end of Kirkville Road at the west edge of Sutter Bypass Causeway
15
Comment
UCR238400
Brassica rapa
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18729
San Joaquin
San Joaquin Valley, along CA-26, 3.2 miles southwest of its junction with N Wimer Road, NE of town of Linden
52
Comment
UCR257587
Brassica rapa
George K. Helmkamp, Elizabeth Helmkamp
2014-2-20
22522
Amador
Sierra Nevada Mountains Foothills, 2.2 air miles SE (126 deg. ) of Ione, along CA-88, 0.5 mile northeast of its junction with CA-104
172
Comment
UCR101127
Brassica tournefortii
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2760
San Bernardino
Mojave Desert, East Cronese Dry Lake. 0.2 mi south of I-15 on Basin Rd.
332
Comment
UCR240256
Brassica tournefortii
George K. Helmkamp
2004-2-11
8272 B
San Luis Obispo
Central Coast, Nipomo Mesa, Pomeroy Rd, 0.2 mi north of Willow Rd.
130
Comment
UCR133220
Brickellia californica
George K. Helmkamp
1993-9-22
34- 05
San Bernardino
San Bernardino Mtns., 6.7 mi. up Burns Canyon from junction of Pioneertown and Pipes Canyon Roads
1529
Comment
UCR136208
Brickellia californica
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5299
San Bernardino
San Bernardino Mountains, 5.7 miles up Burns Cyn Rd from Rimrock Rd., NW of Pioneertown
1768
Comment
UCR242012
Brickellia californica
George K. Helmkamp, E. A. Helmkamp
2012-9-17
19853
El Dorado
Northern Sierra Nevada Mountains Foothills, along Forebay Road, 6.9 miles north of its junction with Pony Express Road in Pollock Pines
726
Comment
CAS-BOT-BC106198
Brickellia desertorum
G. Helmkamp
1993-9-12
22 -3
San Bernardino
Burns Canyon, in the vicinity of Burns Spring
1524
Comment
SEINET3440065
Briza minor
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17187
Yuba
East edge of Sacramento Valley: Camp Far West Road, 0.3 mi N of the junction with Hokan lane, vicinity of Camp Far West Reservoir
105
Comment
UCR118282
Briza minor
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5531
Monterey
South Coast Range, west end Salinas Valley; Nacimiento-Fergusson Rd., 1.5 miles west of Mission Rd. just south of Mission San Antonio
320
Comment
UCR173281
Briza minor
George K. Helmkamp, Elizabeth Helmkamp
2006-5-19
10480
El Dorado
Northern Sierra Nevada Foothills, Lake Oaks mobile home park; corner of Pleasant Valley Road and Patterson Drive., Diamond Springs.
537
Comment
UCR123514
Brodiaea coronaria subsp. coronaria
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6859
Plumas
Sierra Nevada Mountains, Calif. Hwy 89, 2.3 miles SSE of its junction with Calif. Hwy 36, Lake Almanor Region
1357
Comment
SEINET8466112
Brodiaea elegans
G. K. Helmkamp, EA. Helmkamp
2009-6-25
15038
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road above South Fork American River, 6.4 miles north of Pony Express Trail in Pollock Pines
613
Comment
UCR206363
Brodiaea elegans
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14747
Colusa
Inner North Coast Ranges, along CA-16 at 'Cowboy Camp' 1.0 mile south of the junction with CA-20, adjacent to Bear Creek
332
Comment
UCR206863
Brodiaea elegans subsp. elegans
George K. Helmkamp, E. A. Helmkamp
2009-6-25
15038
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road above South Fork American River, 6.4 miles north of Pony Express Trail in Pollock Pines
613
Comment
SD237254
Brodiaea minor
G. K. Helmkamp, E. A. Helmkamp
2010-6-19
16314
El Dorado
Sierra Nevada Mountains Foothills: Slug Gulch Road, 4.7 miles from its junction with Perry Creek Road.
1082
Comment
UCR173587
Bromus carinatus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10389
Nevada
Northern Sierra Nevada Mtns., Cedarsong Road, 0.1 mi. NE of Calif. Hwy 49 (NW of Nevada City)
637
Comment
UCR201754
Bromus carinatus
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13983 B
Alpine
Northern Sierra Nevada Mountains, along CA-89 at Grass Lake, 0.9 mile west of Luther Pass
2354
Comment
UCR251280
Bromus carinatus
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19326
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 0.2 mile north of Ice House community, 10.7 miles north of US-50
1683
Comment
UCR240890
Bromus carinatus var. carinatus
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19121
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 1.1 miles west of Cooks Station
1439
Comment
UCR248391
Bromus carinatus var. carinatus
George K. Helmkamp, Elizabeth Helmkamp
2013-7-10
21010
Amador
Northern Sierra Nevada Mountains, Plasse Road toward Silver Lake, 0.3 mile south of CA-88/Carson Pass Hwy
2276
Comment
UCR237382
Bromus ciliatus
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19166
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 3.6 miles north of its junction with CA-20
1006
Comment
UCD60366
Bromus diandrus
G. K. Helmkamp; E. A. Helmkamp
2007-3-14
11631
Sacramento
Sacramento Valley near the edge of Sierra Nevada Mountains foothills. Latrobe Rd. about 5.7 miles west of Latrobe and 1.5 miles W of El Dorado Co. line.
110
Comment
UCR140105
Bromus diandrus
George K. Helmkamp
2004-2-6
8254
San Luis Obispo
Central Coast, Riverside Road at the low end of Nipomo Mesa beside Division Road
46
Comment
UCR237586
Bromus diandrus
George K. Helmkamp, E. A. Helmkamp
2012-3-9
18606
Yolo
Sacramento Valley, East Main Street (Co. Rd. 22), Woodland (parallel to I-5), 1.7 mile west of the Sacramento River
7
Comment
SD255609
Bromus hordeaceus
George K. Helmkamp, Amy Barnes
2014-3-21
22641
Placer
Sacramento Valley: Sherican, Riosa Road at the west side of its junction with old CA-65 (Sheridan 7.5'Q)
32
Comment
SEINET13203114
Bromus hordeaceus
George K. Helmkamp
2014-1
22746
Nevada
Northern Sierra Nevada Mountains Foothills: along CA-120, 2.3 miles west of its junction with CA-49 in Grass Valley (Grass Valley 7.5' Q.)
728
Comment
UCR184851
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2007-4-26
11818
Amador
Foothills, northern Sierra Nevada Mountains, along Calif. E-16, 0.7 mile south of River Pines
610
Comment
UCR185340
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2007-4-20
11777
El Dorado
Foothills, Northern Sierra Nevada Mountains, along Green Valley Road at junction of Jet Quartz Creek Rd., between Four Corners and Gold Hill
410
Comment
UCR187304
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2007-4-5
11748
Amador
Foothills, Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City
309
Comment
UCR188176
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11890
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
UCR230632
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17201
Yuba
East edge of Sacramento Valley, Spenceville Road, 4.2 miles northwest of Wheatland
55
Comment
UCR233136B
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15766
Amador
Eastern San Joaquin Valley/ Sierra Nevada Foothills, low foothills along CA-16, 6.8 miles west of Plymouth near Forest Home Rd.
177
Comment
UCR241376
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2012-3-22
18635
Amador
Northern Sierra Nevada Mountains Foothills, Bell Road, 1.2 miles east of CA-49 at private road to Rancho Cicada Retreat
371
Comment
UCR253641
Bromus hordeaceus
George K. Helmkamp
2014-3-18
22580
San Joaquin
San Joaquin Valley, along Hwy CA-88 on the southwest side of the border with Calaveras County, 7.1 mi. SW (220 deg. ) of Ione
87
Comment
SEINET3817934
Bromus laevipes
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18910
Placer
Northern Sierra Nevada Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi SE (123degrees) of Clementine Dam on the American River (Auburn 7.5' Q.
396
Comment
UCR141007
Bromus rubens
George K. Helmkamp
2004-3-4
8324
San Luis Obispo
Central Coast, Nipomo Mesa, along Pomeroy Rd, 0.2 mi N of Willow Rd, NW of Nipomo
91
Comment
UCR37507
Bromus rubens
George K. Helmkamp
1984-4-20
840420- 28
San Bernardino
Little San Bernardino Mountains, Big Morongo Preserve of The Nature Conservancy, south of the town of Morongo Valley in Big Morongo Canyon
765
Comment
UCR256982
Bromus sterilis
George K. Helmkamp
2014-5-17
22896
Calaveras
Sierra Nevada Mountains Foothills, between Sandy Gulch and Glencoe along CA-26, 0.1 mile north of the bridge over South Fork Mokelumne River
608
Comment
UCD72498
Bromus suksdorfii
G. K. Helmkamp; E. A. Helmkamp
2007-8-9
12735
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road, 1.4 miles south of the lake.
2101
Comment
UCR129555
Bromus suksdorfii
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6819
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
UCR88283
Bromus suksdorfii
George K. Helmkamp
1995-9-21
1- 21
Mono
Sierra Nevada Mtns., south edge of Lake Mary, south of Lake Mary, Mammoth Lakes
2805
Comment
UCR95915
Cakile maritima
George K. Helmkamp
1996-9-22
1202
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
UCR103832
Calamagrostis canadensis
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2367
Mono
Sierra Nevada Mtns., along Calif. Hwy 120, 0.5 mile north of Tioga Pass, Nunatak Meadow area
2957
Comment
UCR89432
Calamagrostis stricta subsp. inexpansa
George K. Helmkamp
1990-8-2
s.n.
Mono
Sierra Nevada Mtns, between Mammoth and Lake Mary
2591
Comment
SD212703
Calandrinia ciliata
G. K. Helmkamp, Elizabeth Helmkamp
2006-3-26
10104
El Dorado
East-Northeast of Sacramento; Rock Creek Road, 0.9 mile East of CA Highway 193
395
Comment
UCR140109
Calandrinia ciliata
George K. Helmkamp
2004-2-7
8258
San Luis Obispo
Central Coast, SE of Oceano along Halcyon Rd., just east of Mesa View Dr.
76
Comment
UCR232274
Calocedrus decurrens
George K. Helmkamp, E. A. Helmkamp
2011-9-30
18360
Nevada
Northern Sierra Nevada Mountains, small, open flat along CA-20, 2.6 miles west of its junction with Lowell Hill Road
1581
Comment
UCR245712
Calocedrus decurrens
George K. Helmkamp, Amy Barnes
2013-9-24
22351
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
UCR194974
Calochortus albus
George K. Helmkamp, E. A. Helmkamp
2007-5-18
11998
Placer
Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 4.3 miles northeast of the bridge over the junction of North and West Forks of the American River
485
Comment
UCR140481
Calochortus catalinae
George K. Helmkamp
2004-4-23
8540
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd 0.8 mi E. of Midland School, c. 7 mi NE of Los Olivos
396
Comment
SEINET11262287
Calochortus clavatus var. avius
George Helmkamp, E. A. Helmkamp
2011-7-30
17951
El Dorado
Northern Sierra Nevada Mountains: Omo Ranch Road, 7.4 miles southeast of Omo Ranch, 1.9 miles NW airline of Hwy 88 junction (Caldor 7.5).; 0
1372
Comment
SD239510
Calochortus minimus
G. K. Helmkamp, E. A. Helmkamp
2009-7-2
15091
El Dorado
Sierra Nevada Mountains: Wright's Road at Chimney Flat, 3.4 miles north of junctcion with US-50 (Pyramid Peak 7.5'Q)
2037
Comment
UCR173732
Calochortus minimus
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10701
El Dorado
Northern Sierra Nevada Mountains, Ice House Road at the turnoff to Loon Lake
1982
Comment
UCR193106
Calochortus minimus
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12338
Nevada
Northern Sierra Nevada Mountains, Spaulding Lake Road, 0.3 mile north of its junction with Hwy CA-20
1604
Comment
SEINET11261807
Calochortus monophyllus
George K. Helmkamp, E. A. Helmkamp
2012-4-30
18883
El Dorado
Northern Sierra Nevada Mountains Foothills: Mosquito Road, 2.4 miles N of the bridge over the South Fork American River.; 0
694
Comment
UCR230086
Calochortus monophyllus
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17485
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
UCR129959
Calochortus splendens
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5543
Monterey
Outer south coast ranges., Nacimiento Road, 10.4 mi west of Mission Road, just south of Mission San Antonio
457
Comment
UCR194879
Calochortus superbus
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12109
Nevada
Northern Sierra Nevada Mountains Foothills, Tyler Foote Crossing Road, 1.0 mile northeast of CA-49
622
Comment
UCR197582
Calochortus venustus
George K. Helmkamp, E. A. Helmkamp
2008-5-29
13534
Calaveras
Sierra Nevada Mountains Foothills, Utica Powerhouse Road parallel to CA-4 and 0.4 mile from the road junction; at the Utica Creek crossing
759
Comment
RSA799174
Calycadenia truncata
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16950
El Dorado
Northern Sierra Nevada Mtns: Peavine Ridge Road, 2.8 mi west of Ice House Road and at the junction with Forest Route 31 and Round Tent Canyon Road.
1581
Comment
CLARK-A1045-1217
Calycanthus occidentalis
George K. Helmkamp
1977-8-3
Mariposa
Yosemite National Park at the diversion dam; rocky river bank; ; El Capitan 7.5'Q
1158
Comment
UCR193105
Calyptridium monospermum
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12337
Nevada
Northern Sierra Nevada Mountains, Spaulding Lake Road, 0.3 mile north of its junction with Hwy CA-20
1604
Comment
CLARK-A1045-453
Calyptridium pygmaeum
George K. Helmkamp
1979-6-22
San Bernardino
San Bernardino Mountains on Forest Service road 3N04, 0.75 mile north of road 3N08; sagebrush/yellow pine area; ; Big Bear City 7.5' Q
2285
Comment
UCR102613
Calyptridium umbellatum
George K. Helmkamp, E. A. Helmkamp
1997-9-12
2412
Mono
Eastern Sierra Nevada/Mono Basin, Big Sand Flat along Calif. Hwy 120 at Pilot Spring Rd., SE of Mono Lake
2125
Comment
SD224929
Calystegia longipes
G. K. Helmkamp
1997-9-30
2500
Inyo
Sierra Nevada Mountains; Lone Pine Crk.
2286
Comment
UCR194948
Calystegia occidentalis subsp. occidentalis
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12003
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill
814
Comment
UCR132151
Camissonia boothii subsp. boothii
George K. Helmkamp, E. A. Helmkamp
1993-7-28
186
Mono
Sierra Nevada Mountains, Long Valley mesa at the junction of Owens River Road and Lake Crowley
2104
Comment
UCR122775
Camissonia boothii subsp. condensata
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2857
San Bernardino
Mojave Desert, north of Calif. Hwy 62 between Joshua Tree and 29 Palms; north on Leer Ave and 0.9 mile E on Amboy Rd.
732
Comment
UCR122820
Camissonia brevipes subsp. brevipes
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6353
San Bernardino
Eastern Mojave Desert, NE side of junction of US-95 and I-40
366
Comment
VVC954
Camissonia brevipes subsp. brevipes
G. K. Helmkamp
1998-4-9
3306
San Bernardino
Mojave Desert, NW of Barstow; 2.2 mi. NE of CA Hwy 58 on unnamed dirt road 2.8 mi. W of Waterman Rd
701
Comment
RSA615143
Camissonia campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3231
San Luis Obispo
Soda Lake Road, 6.6 miles NW of junction with CA highway 33 (roughly W of Maricopa)
671
Comment
CLARK-A1045-1281
Camissonia cardiophylla
George K. Helmkamp
1978-3-17
San Diego
Anza-Borrego Desert State Park Canon sin Nombre [No-name Canyon]; sandy wash; Sweeney Pass 7.5'Q
Comment
UCR104013
Camissonia claviformis
George K. Helmkamp
1998-4-4
3136
Riverside
Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd)
457
Comment
UCR101495
Camissonia claviformis subsp. aurantiaca
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2796
San Bernardino
Mojave Desert, NW side of Salt Spring Hills about 28 mi north of Baker; between the hills and Calif. Hwy 127
201
Comment
UCR101662
Camissonia claviformis subsp. aurantiaca
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2800
San Bernardino
Eastern Mojave Desert, Saltbush scrub flat east of Soda Lake and 5.9 mi SSE of Baker on a farm road leading to Little Cowhole Mtn.
299
Comment
UCR101660
Camissonia claviformis subsp. claviformis
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2769
San Bernardino
Mojave Desert, Silurian Dry Lake along Calif. Hwy 127, 19.0 mi north of Baker.
207
Comment
UCR103343
Camissonia claviformis subsp. yumae
George K. Helmkamp, E. Helmkamp
1998-1-24
2592
Imperial
Sonoran (Colorado) Desert, Gravel Rd south of Hwy I-8. Rocky hills at W edge of Fort Yuma Indian Reservation.
61
Comment
UCR121707
Camissonia kernensis subsp. gilmanii
George K. Helmkamp, E. A. Helmkamp
2001-4-26
6473
Kern
Tehachapi Mtns, Oak Creek Rd., 8.9 miles west of Mojave
1189
Comment
UCR102931
Camissonia pallida
George K. Helmkamp
1998-4-3
3064
Riverside
Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river
396
Comment
SD193318
Camissonia strigulosa
G. K. Helmkamp, E. A. Helmkamp
2005-4-17
9365
San Luis Obispo
Corbett Canyon, 2.3 miles north of Highway CA 227 in Arroyo Grande.
81
Comment
RSA0036000
Campanula prenanthoides
George K. Helmkamp, Elizabeth A. Helmkamp
2013-7-25
22032
El Dorado
Wentworth Springs Road, 2.1 miles east of Stumpy Meadows Lake, 15.6 km NNE (06 ) of Pollock Pines
1357
Comment
RSA725938
Campanula prenanthoides
George K. Helmkamp, E. A. Helmkamp
2006-8-24
11289
El Dorado
Ice House Road, 3.8 miles north of Wentworth Springs Road
1616
Comment Read comments Jul 26 2017
UCR230068
Capsella bursa-pastoris
George K. Helmkamp, E. A. Helmkamp
2011-5-19
17309
Amador
Eastern edge San Joaquin Valley at start of Sierra Nevada foothills, Pardee Dam Road, 0.2 mile south of Stony Creek Road, 5 miles SE (124 deg. ) of Ione
201
Comment
SBBG128824
Capsella bursa-pastoris
G. K. Helmkamp, E. A. Helmkamp
2012-2-3
18524
San Joaquin
Escalon-Bellota Rd, 0.2 mi S of its jct with CA-26, NE of Linden
39
Comment
UCD114517
Cardamine hirsuta
G. K. Helmkamp; E. A. Helmkamp
2007-3-10
11603
El Dorado
Northern Sierra Nevada Mountains; Rattlesnake Bar Road, 3 miles southwest of CA-49, SW of Pilot Hill.
390
Comment
UCR184369
Cardamine hirsuta
George K. Helmkamp, E. A. Helmkamp
2007-2-24
11589
El Dorado
Foothills, Northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park, Pleasant Valley Road and Patterson Dr., east end of Diamond Springs
537
Comment
UCR230634
Carduus pycnocephalus
George K. Helmkamp, E. A. Helmkamp
2011-5-10
17241
Amador
Northern Sierra Nevada Mountains Foothills, along Sutter Creek near Sutter Creek Rd., 2.9 air miles NE (68 deg. ) of town of Sutter Creek
412
Comment
UCD140989
Carex
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12067
Placer
Northern Sierra Nevada Mountains: Sugar Pine Road, 0.2 mile northwest of Forest Hill Road.
1360
Comment
UCR195710
Carex
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12106
Nevada
Northern Sierra Nevada Mountains Foothills, Tyler Foote Crossing Road, 1.7 miles northeast of CA-49
617
Comment
UCR196931
Carex
George K. Helmkamp
2008-6-17
13693
Amador
Northern Sierra Nevada Mountains, Bear River Reservoir Road on the branch leading to Cole Creek, 2.7 miles east of Bear River Reservoir dam
1814
Comment
UCR114239
Carex abrupta
George K. Helmkamp, E. A. Helmkamp
1997-9-9
2293
Alpine
Sierra Nevada Mtns., Ebbetts Pass along Calif. Hwy [4]
2652
Comment
UCR122661
Carex alma
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7509
Madera
Western Sierra Nevada foothills, Bass Lake Road, 2.2 miles southeast of the junction with CA Hwy 41
976
Comment
UCR188513
Carex angustior
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12540
Alpine
Northern Sierra Nevada Mountains, Blue Lake road, 11.5 miles south of its junction with CA-88, c. 0.5 mi. due east of Lower Blue Lake
2463
Comment
UCR82261
Carex athrostachya
George K. Helmkamp
1994-7-28
103- 5
Mono
Eastern Sierra Nevada Mtns., Long Valley, Crowley Lake Road at Whiskey Creek, 3 miles east of Tom's Place
2119
Comment
UCR174203
Carex deweyana subsp. leptopoda
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10587
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road just north of Hwy US-50
1665
Comment
UCR241315
Carex feta
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19880
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy E-26 (Red Corral/West Point-Pioneer Rd.) just north of the bridge over the North Fork Mokelumne River
613
Comment
UCR194688
Carex heteroneura var. heteroneura
George K. Helmkamp, E. A. Helmkamp
2007-5-31
12213
El Dorado
Northern Sierra Nevada Mountains, Wrights Lake Road, 3.3 miles north of US-50 at Wrights Lake junction east of Kyburz
2043
Comment
UCR91938
Carex heteroneura var. heteroneura
George K. Helmkamp
1996-6-11
1145
San Bernardino
San Bernardino Mtns., 1.2 miles SW of Tulip Lane, city of Big Bear Lake
2143
Comment
SD144145
Carex hoodii
G. Helmkamp, E. Helmkamp
1997-9-10
2339
Mono
Inyo National Forest at Pilot Spring about 5 miles southeast of highway CA-120 (southeast of Mono Lake and north of Mono Craters); yellow pine forest with a small damp area from the spring.
2301
Comment
UCR257673
Carex hoodii
George K. Helmkamp, Elizabeth Helmkamp
2012-8-24
19692
Alpine
Northern Sierra Nevada Mountains, along CA-88, Carson Pass Hwy, at the west side of Carson Spur, 1.7 air mi west (278 deg. ) of Kirkwood
2436
Comment
UCR249151
Carex infirminervia
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20752
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.2 miles north of the Yuba County line
901
Comment
UCR172671B
Carex integra
George K. Helmkamp, Elizabeth Helmkamp
2006-4-11
10177
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento; Along Mother Load Road, 0.3 mi N of Pleasant Valley Road (just west of El Dorado)
476
Comment
UCR121466
Carex leporinella
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5080
Nevada
Northern Sierra Nevada Range, Tahoe Nat. Forest, Donner Pass Rd. (=Hwy 40), 2.2 mi. west of Lake Donner.
1997
Comment
RSA0025301
Carex multicostata
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15379
Alpine
Sierra Nevada Mtns: along CA-4 at Mile-21, 21.6 mi southwest of its junction with CA-89.
2402
Comment
UCR176211
Carex multicostata
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10854
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
UCR237092
Carex nebrascensis
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19423
Amador
Northern Sierra Nevada Mountains, Tragedy Spring, near Carson Pass Hwy, along Tragedy Spring Road 0.3 mile east of its junction with CA-88
2421
Comment
UCR67025
Carex pansa
George K. Helmkamp
1990-9-3
s.n.
San Luis Obispo
Central Coast, Los Osos, north of Buckskin and Martingale
46
Comment
UCR120496
Carex pellita
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1999-6-30
5062
Placer
Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road
1860
Comment
SD132501
Carex schottii
G. Helmkamp
1990-9-3
San Luis Obispo
South end of Morro Bay; southwest of Baywood Park; coastal strand.
14
Comment
RSA713331
Carex senta
George K. Helmkamp
1996-6-11
1128
San Bernardino
San Bernardino Mtns, along SN11 southwest of City of Big Bear Lake. 0.5 mile west of Mill Creek Road.
2256
Comment
UCR175483
Carex specifica
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10692
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 10.6 miles south of Wentworth Springs Road (just south of the Jones Fork of Silver Creek)
1509
Comment
UCR245593
Carex specifica
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22206
Alpine
Northern Sierra Nevada Mountains, Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89
1924
Comment
SEINET3908427
Carex subfusca
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13631
Amador
Northern Sierra Nevada Mountains: Panther Creek Road, 0.1 mile south of its junction with CA-88, Jct. is 4.0 miles east of Cook's Station (Peddler Hill 7.5' Q.).; 0
1000
Comment
UCR160569
Castilleja affinis subsp. affinis
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9597
San Luis Obispo
Central Coast Ranges, Arroyo Grande to Huasna Road along Arroyo Seco Creek, 8.3 miles northeast of Huasna Townsite Road
332
Comment
RSA567418
Castilleja angustifolia
George K. Helmkamp
1993-4-24
s.n.
San Bernardino
5 miles north of Kelso, crossing Kelbaker Road
915
Comment
UCR219184
Castilleja applegatei
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16366
Amador
Sierra Nevada Mountains Foothills, Rams Horn Grade, 1.8 rd. miles northeast of Volcano at the junction with Sutter Creek Road
730
Comment
UCD122250
Castilleja applegatei subsp. pinetorum
G. K. Helmkamp; E. A. Helmkamp
2006-7-7
10848
El Dorado
Northern Sierra Nevada Mtns.: Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz.
2049
Comment
UCR187299
Castilleja attenuata
George K. Helmkamp, E. A. Helmkamp
2007-4-5
11742
Amador
Foothills, Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City
309
Comment
UCR237299
Castilleja attenuata
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18750
Butte
Northwestern Sacramento Valley, Cox Lane, 1.3 miles west of its intersection with La Loma Way, c. 10.3 mi. ENE (82 deg. ) of Gridley
91
Comment
UCR15497
Castilleja brevilobata
George K. Helmkamp
1978-7-16
s.n.
Mendocino
North Coast, where [Hwy 208] first meets the ocean west of Leggett at US Hwy 1
49
Comment
UCR197552
Castilleja campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13709
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 0.1 mile south of its junction with CA-88, between Mormon Emigrant Trail and Hamms Station
2076
Comment
UCR201778
Castilleja campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13941
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road at Lyons Creek, 4.0 miles north of CA-50
2043
Comment
UCR122776
Castilleja densiflora subsp. obispoensis
George K. Helmkamp, E. A. Helmkamp
1998-5-20
3888
San Luis Obispo
Central Coast, Irish Hills, 3.1 miles SE of Los Osos Valley Rd on Clark Valley Rd., SE of Los Osos
351
Comment
UCR197253
Castilleja foliolosa
George K. Helmkamp, E. A. Helmkamp
2008-4-11
13263
Calaveras
Sierra Nevada Mountains Foothills, along Fricot City Road, 1.3 miles east of its junction with Calaveritas road
424
Comment
UCR102598
Castilleja lemmonii
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2368
Mono
Sierra Nevada Mtns., along Calif. Hwy 120, 0.5 mile north of Tioga Pass, Nunatak Meadow area
2957
Comment
UCR184821
Castilleja lineariloba
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11961
El Dorado
Foothills, Northern Sierra Nevada Mountains, Pedro Hills Road, 0.5 mile west of its junction with Calif. Hwy 49, junction of roads 5.3 miles south of Cool
311
Comment
UCR218154
Castilleja lineariloba
George K. Helmkamp, Amy Barnes
2010-5-7
16007
Calaveras
Sierra Nevada Mountains Foothills, Mountain Ranch Road, 3.2 miles east of San Andreas
436
Comment
SEINET13276717
Castilleja miniata subsp. miniata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-1
19426
Sierra
Northern Sierra Nevada Mountains: along Hwy CA-89, c. 8 miles north of the Nevada County line (Sierraville 7.5' Q.)
1823
Comment
UCD123001
Castilleja miniata subsp. miniata
G. K. Helmkamp; E. A. Helmkamp
2007-6-20
12391
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail, 22.8 miles ESE of its junction with Sly Park Road at Jenkinson Lake.
2264
Comment
UCR129545
Castilleja miniata subsp. miniata
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6838
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
UCR171346
Castilleja miniata subsp. miniata
George K. Helmkamp, E. A. Helmkamp
2005-10-1
9985
Placer
Northern Sierra Nevada Mtns., NW of Lake Tahoe; Junction of Bear Creek Dr. and Big John Road (c. 2.2 miles west of Calif. Highway 89 and just south of Alpine Meadows Road)
2015
Comment
UCR189440
Castilleja miniata subsp. miniata
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12702
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road 0.1 mile south of its junction with CA-88
2500
Comment
UCR205980
Castilleja miniata subsp. miniata
George K. Helmkamp, Mary Alice Barnes, Amy Barnes
2008-7-28
13912
El Dorado
Northern Sierra Nevada Mountains, Wrights Lake Road, 3.4 miles north of its junction with CA Hwy 50
2043
Comment
SD237609
Castilleja miniata var. miniata
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15269
El Dorado
Sierra Nevada Mountains: Wrights Lake Road, 1.2 miles south of Wrights Lake (Pyramid Peak 7.5'Q)
2073
Comment
UCR15491
Castilleja rubicundula subsp. lithospermoides
George K. Helmkamp
1978-6-3
s.n.
San Luis Obispo
Central Coast, Baywood Park
Comment
UCR122629
Castilleja subinclusa subsp. franciscana
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6789
San Mateo
Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay)
91
Comment
UCR218102
Castilleja tenuis
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16607
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road at the entrance to a camping area, 0.2 mile west of the lake, 5.5 miles NE (35 deg. ) of Kyburz
2114
Comment
UCR118271
Caucalis microcarpa
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5522 A
Monterey
South Coast Range, west end Salinas Valley; Nacimiento-Fergusson Rd., 1.5 miles west of Mission Rd. just south of Mission San Antonio
320
Comment
CLARK-A1045-1289
Caulanthus cooperi
George K. Helmkamp
1978-3-17
San Diego
Anza-Borrego Desert State Park rocky edge of Bisnaga Alta Wash; Sweeney Pass 7.5'Q
Comment
UCR174199
Ceanothus cordulatus
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10584
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road just north of Hwy US-50
1665
Comment
UCR197652
Ceanothus cordulatus
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13745
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 1.5 miles south of its junction with CA-88, jct. between Mormon Emigrant Trail and Bear Valley Reservoir Road
2021
Comment
UCR250675
Ceanothus cuneatus subsp. cuneatus
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20411
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 1.9 miles east of its junction with CA-26 in West Point
652
Comment
UCR253512
Ceanothus cuneatus subsp. cuneatus
George K. Helmkamp
2014-4-5
22666
Amador
Sierra Nevada Foothills, junction of Tonzi Road and CA-124, NE of Ione
201
Comment
UCR130599
Ceanothus foliosus subsp. medius
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4869
Monterey
Santa Lucia Mountains, Willow Creek Road, 6.3 mi east of Calif. Hwy 1 north of Gorda
1037
Comment
RSA782547
Ceanothus integerrimus
George K. Helmkamp, Amy Barnes
2009-7-12
15184
Placer
Along Foresthill Road 10.3 miles northeast of the town of Foresthill
1370
Comment
UCR198486
Ceanothus integerrimus
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13389
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
RSA628435
Ceanothus papillosus var. roweanus
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4868
Monterey
Willow Crk Rd, 6.3 mi E of CA-1 N of Gorda.
1037
Comment
UCR258239
Cedrus deodara
George K. Helmkamp, Elizabeth Helmkamp
2012-10-16
20030
Nevada
Sierra Nevada Mountains Foothills, Robles Dr., south of the junction of Combie Road and Darkhorse Drive, 2.8 air miles SE (124 deg. ) of Higgins Corner
445
Comment
SD248325
Centaurea solstitialis
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22134
Amador
Sierra Nevada Mountains Foothills: City of Sutter Creek at the junction of Hanford St. and Spanish St.
384
Comment
SEINET2441346
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2009-8-6
15397
Amador
Sierra Nevada Mountains Foothills: along Hwy CA-88, 3.1 miles northeast of CA-49 in Jackson (Mokelumne Hill 7.5' Q.).; 0
424
Comment
UCR170426
Centaurea solstitialis
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10021
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, c. 3 air mi NNW of Placerville]; South Fork of American River on the west side of Calif. Highway 193
291
Comment
UCR182288
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2006-10-8
11486
Calaveras
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 26, 0.8 mi east of Calif. Hwy 49 in the vicinity of Mokulumne Hill
488
Comment
UCR201565
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2008-10-2
14195
Sacramento
Sacramento Valley, Latrobe Road, 7.4 miles west of Latrobe
67
Comment
UCR201566
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2008-10-2
14194
Sacramento
Sacramento Valley, Latrobe Road, 4.9 miles west of Latrobe and just east of the El Dorado Co. line
152
Comment
UCR253793
Centaurea solstitialis
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20057
San Joaquin
San Joaquin Valley, along Hwy CA-26, 0.7 mile northeast of Bellota
50
Comment
UCR258194
Centaurea solstitialis
George K. Helmkamp, Elizabeth Helmkamp
2012-10-13
20020
Placer
Sacramento Valley, Granite Bay, Folsom Lake; Park Road 1.8 miles north of the east end of Douglas Blvd.
146
Comment
UCR67437
Centaurea solstitialis
George K. Helmkamp
1990-9-23
D- 4
Lassen
20 mi north of Litchfield along US Hwy 395
1437
Comment
UCR206743
Centaurium muehlenbergii
George K. Helmkamp, E. A. Helmkamp
2009-6-22
15035
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Diamond Springs
527
Comment
UCD121505
Centaurium tenuiflorum
G. K. Helmkamp; E. A. Helmkamp
2007-8-26
12817
Amador
Northern Sierra Nevada Mountains Foothills: along Hwy CA-49 at the south end of Plymouth.
323
Comment
SD236198
Centromadia fitchii
G. K. Helmkamp, E. A. Helmkamp
2008-10-6
14223
Sutter
Sacramento Valley: Pass Road on south side of Sutter Buttes, 6.9 miles west of Sutter
84
Comment
SD260900
Centromadia fitchii
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19765
Amador
Northern Sierra Nevada Mountains Foothills: along CA-49, 1.2 miles north of the juncton with Fiddletown Road at Plymouth (Amador City 7.5'Q)
299
Comment
UC1930962
Centromadia fitchii
G. K. Helmkamp, E. A. Helmkamp
2006-10-20
11549
El Dorado
Northern Sierra Nevada Mountains Foothills: 0.6 mile northwest of Pleasant Valley along Pleasant Valley Road
Comment
SD148237
Centromadia pungens subsp. pungens
G. K. Helmkamp, E. A. Helmkamp
2001-4-27
6535
Kern
Enos Lane Road, 1.9 mile south of California Highway 119.
60
Comment
UCR173482
Cerastium fontanum subsp. vulgare
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10542
El Dorado
Northern Sierra Nevada Mountains, Along Ice House Canyon Road, 10.6 mi. south of Wentworth Springs Road (just south of the Jones fork of Silver Creek and SE of Union Valley Reservoir)
1509
Comment
UCR206987
Cerastium fontanum subsp. vulgare
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14846
Sierra
Northern Sierra Nevada Foothills, along CA-49, 1.8 miles north of the Yuba County line0
884
Comment
CAS-BOT-BC173161
Cerastium glomeratum
G. K. Helmkamp; E. A. Helmkamp
2008-5-8
13420
Calaveras
Sierra Nevada Mountains Foothills: Skull Flat road, 0.4 mile north of its junction with Winton Road, northeast of West Point
823
Comment
CAS-BOT-BC388277
Cerastium glomeratum
G. K. Helmkamp; E. A. Helmkamp
2009-6-3
14879
El Dorado
Foothills, northern Sierra Nevada Mountains: Pony Express Trail, 0.7 mile east of its junction with Sly Park Road in Pollock Pines
851
Comment
CDA36254
Cerastium glomeratum
G. K. Helmkamp, E. A. Helmkamp
2007-4-26
11840
Calaveras
Foothills, Northern Sierra Nevada Mountains; Along Calif. Hwy 49, 1 mile west of Mokelumne Hill, 1.7 miles south of the Amador County line.
Comment
CDA36255
Cerastium glomeratum
G. K. Helmkamp, E. A. Helmkamp
2007-5-9
11983
El Dorado
Northern Sierra Nevada Mountains; White Meadow Road, 0.6 mile west of its junction with Ice House Road, c. 0.75 NNW of Riverton.
Comment
SEINET235069
Cerastium glomeratum
G. K. Helmkamp, E. A. Helmkamp
1998-5-13
3535
Kern
Greenhorn Mtns Southern Sierra Nevada: 6.5 mi. SW of Woody along Bakersfield/Glennville Rd (NE of Bakersfield). Near Ho
396
Comment
SEINET3271591
Cerastium glomeratum
George K. Helmkamp, E. A. Helmkamp
2007-4-26
11840
Calaveras
Foothills, Northern Sierra Nevada Mountains; along Calif. Hwy 49, 1 mile west of Mokelumne Hill, 1.7 miles south of the Amador County line
370
Comment
UCD98047
Cerastium glomeratum
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11840
Calaveras
Northern Sierra Nevada Mountains; along CA-49, 1 mile west of Mokelumne Hill, 1.7 milse south of the Amador County line.
370
Comment
UCR118953
Cerastium tomentosum
George K. Helmkamp
2000-7-18
5848
Mono
Eastern Sierra Nevada Mountains, city of Mammoth Lakes
2409
Comment
UCR103303
Chaenactis carphoclinia var. carphoclinia
George K. Helmkamp
1998-3-30
2996
San Bernardino
Mojave Desert, Dale Dry Lake, east of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR251242
Chaenactis douglasii var. douglasii
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19344
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 0.4 mile north of Ice House village, 10.9 miles north of the junction with US-50
1707
Comment
UCR158571
Chaenactis glabriuscula var. lanosa
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9399
San Luis Obispo
Inner South Coast Ranges, Carrizo Highway at Mile-32, Calif. Hwy 58, east of Santa Margarita, beside Windmill Creek
509
Comment
CLARK-A1045-424
Chaenactis santolinoides
George K. Helmkamp
1978-6-6
San Bernardino
San Bernardino Mountains north edge of Lake, at junction of State Highway 18 and Big Bear Lake dam; yellow pine forest; Fawnskin 7.5'Q
Comment
UCR122655
Chaenactis stevioides
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2851
San Bernardino
Mojave Desert, north of Calif. Hwy 62 between Joshua Tree and 29 Palms; north on Leer Ave and 0.9 mile E on Amboy Rd.
732
Comment
UCR123974
Chaenactis stevioides
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6401
San Bernardino
Mojave Desert, CA Hwy 62, 16.2 mi east of Utah Trail (Twentynine Palms) near Dale Lake
366
Comment
UCR104786
Chaenactis xantiana
George K. Helmkamp, E. A. Helmkamp
1997-3-11
1475
Los Angeles
c. 12 mi. west of Lancaster at Lancaster Rd & Willow Springs Cyn.
899
Comment
SBBG129052
Chamaebatia foliolosa
G. K. Helmkamp, E. A. Helmkamp
2013-6-15
20872
El Dorado
Silver Fork Rd, 2.3 mi S of its jct with US-50 in Kyburz
1454
Comment
UCR250705
Chamaebatia foliolosa
George K. Helmkamp, Mary Alice Barnes
2013-5-10
20548
El Dorado
Northern Sierra Nevada Mtns. Foothills, Volcanoville Road (end of maintained road), 5.1 miles northwest of Bear Foot Road, at site of Volcanoville
960
Comment
SEINET2042546
Chamaesyce glyptosperma
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5052
Sutter
Corner of Dry Creek Rd. & Bowman Rd, near Nielsburg, 3 mi NE of Auburn besdie I-80 & 1.5 NW of North Fork Lake on American River. (Auburn Quad 7.5'). T13N R 8 E S24 (SW/4)
457
Comment
SBBG123004
Chamaesyce serpillifolia subsp. hirtula
G. K. Helmkamp with E. A. Helmkamp
2007-7-23
12568
El Dorado
Rock Creek rd, 7.1 mi E of its jct with St Hwy 193
567
Comment
RSA602630
Chenopodium album
George K. Helmkamp
1996-9-11
1159
San Diego
Ca. 5 miles south of California Highway 76 on Couser Ranch Rd. onto Lilac Rd. to Wills avocado ranch., (33 deg 15.6 N, 117 deg 6 W) [UTM 10km cell: MG-9E, 8N. Weaver Mountain]
335
Comment
SEINET954687
Chenopodium album
George Helmkamp
1996-1
1159
San Diego
About 5 miles south of California Highway 76 on Couser Ranch Road onto Lilac Road to Wills avocado ranch.
335
Comment
UCR194981
Chenopodium album
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13096
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
CDA3032
Chenopodium berlandieri
G. K. Helmkamp
2000-10-16
6222
San Bernardino
Morongo Valley; Big Morongo Wildlife Preserve, ca. 0.75 mi E of the city of Morongo Valley.
Comment
IRVC29230
Chenopodium berlandieri
G. K. Helmkamp, E. A. Helmkamp
2004-10-8
8851
San Luis Obispo
Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek Central Coast
136
Comment
UCR219193
Chenopodium berlandieri
George K. Helmkamp, E. A. Helmkamp
2009-9-22
15644
Amador
Sierra Nevada Mountains Foothills, junction of Shenandoah Road (CA-16) and Steiner Road, southwest of River Pines
750
Comment
UCR123948
Chenopodium botrys
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6989
Humboldt
North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road
137
Comment
UCR101031
Chenopodium californicum
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3235
San Luis Obispo
Soda Lake Rd, 6.6 mi. NW of jct with Calif. hwy 33 (roughly west of Maricopa).
671
Comment
UCR107300
Chenopodium californicum
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3665
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
UCR136212
Chenopodium fremontii
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5307
San Bernardino
East side San Bernardino Mountains., 7.3 mi up Burns cyn Rd from Rimrock Rd (NW of Pioneertown)
1799
Comment
UCR132041
Chenopodium strictum
George K. Helmkamp
2003-7-29
8040 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
SD237255
Chlorogalum pomeridianum
G. K. Helmkamp, Amy Barnes
2009-7-12
15172
Placer
Sierra Nevada Mountains Foothills: along Foresthill Road at the northeast end of the city of Foresthill.
985
Comment
SD239515
Chlorogalum pomeridianum var. pomeridianum
G. K. Helmkamp, E. A. Helmkamp
2011-7-17
17750
Nevada
Northern Sierra Nevada Mountains Foothills: You Bet Road, 2.6 miles east of its junction with CA-174 and at the crossing over Greenhorn Creek, 3.18 miles ESE (95a^z) of Peardale (Chicago Park 7.5'Q)
686
Comment
UCD130413
Chondrilla juncea
G. K. Helmkamp; E. A. Helmkamp
2007-9-19
12984
El Dorado
Northern Sierra Nevada Mountains: along Greenstone Road just south of its junction with US-50 (east of Shingle Springs).
427
Comment
UCR232638
Chondrilla juncea
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18416
El Dorado
Northern Sierra Nevada Mountains Foothills, Forebay Road, 8.1 miles northwest of Pollock Pines, at north side of bridge over the South Fork American River
596
Comment
UCR241740
Chondrilla juncea
George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp
2012-9-8
19814
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 10.4 miles northeast of Hidden Treasure Road, 0.45 mi. ESE of Whisky Hill
1677
Comment
UCR242014
Chondrilla juncea
George K. Helmkamp, E. A. Helmkamp
2012-9-17
19861
El Dorado
Northern Sierra Nevada Mountains Foothills, north of Pollock Pines, along Forebay Road at South Fork American River
564
Comment
UCR93382
Chorispora tenella
George K. Helmkamp, E. A. Helmkamp
1993-5-9
s.n.
Modoc
2 mi from the Nevada border along calif. Hwy 139
1316
Comment
UCR51899
Chorizanthe brevicornu var. spathulata
George K. Helmkamp
1978-5-28
s.n.
Mono
Lower Rock Creek
1677
Comment
CLARK-A1045-1345
Chorizanthe californica
George K. Helmkamp
1978-6-3
San Luis Obispo
Los Osos Montana de Oro State Park, coastal strand; Morro Bay S 7.5'Q
Comment
RSA489119
Chorizanthe corrugata
George K. Helmkamp
1988-2-28
25
Imperial
At end of dirt road ca. 2 miles WSW of Crucifixion Thorn Natural Area, SE of Ocotillo and SW of Hwy 98., [10 km cell; PG-1N, 0E]
152
Comment
UCR116696
Chorizanthe fimbriata
George K. Helmkamp
1974-7-16
s.n.
Riverside
Santa Ana Mtns. region, Ortega Oaks Park on Hwy 74
610
Comment
UCR87844
Chorizanthe leptotheca
George K. Helmkamp, E. A. Helmkamp
1995-6-20
95-2- 22
San Luis Obispo
Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road
400
Comment
UCR216336
Chrysanthemum leucanthemum
George K. Helmkamp
2004-3-23
08396
San Luis Obispo
Central Coast, ENE of Nipomo; 1.5 miles SW of Rancho Rd along Dana Foothill Rd.
171
Comment
UCR14386
Chrysanthemum parthenium
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Angelus Oaks, Robin Oak Dr.
1734
Comment
UCR131901
Chrysanthemum segetum
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5734
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR231821
Chrysolepis sempervirens
George K. Helmkamp, E. A. Helmkamp
2010-8-14
16768 A
Placer
Northern Sierra Nevada Mountains, Deadwood Road, 1.2 miles south of its junction wih Forest Hill Road
1564
Comment
SD225041
Chylismia claviformis
G. K. Helmkamp
1998-4-4
3136
San Bernardino
Southern Mojave Desert; junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center - Rice Rd)
456
Comment
UCSB37362
Chylismia claviformis
Helmkamp, G.
1973-6-14
Mono
S. Mono Co., California; near Inyo Co. line US 395 on Sherwin Grade
1981
Comment
SD227856
Chylismia claviformis subsp. aurantiaca
G. K. Helmkamp, E. A. Helmkamp
1998-2-26
2796
San Bernardino
Mojave Desert: NW side of Salt Spring Hills about 28 mi N of Baker; between the hills and Hwy CA-127
200
Comment
UCR190225
Cichorium intybus
George K. Helmkamp, E. A. Helmkamp
2007-9-14
12949
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill
942
Comment
UCR219261
Cicuta douglasii
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16539
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2492
Comment
UCR201910
Cirsium andersonii
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14054
El Dorado
Northern Sierra Nevada Mountains, Leek Spring Valley, Foster Meadow Road 0.9 miles southwest of its junction with Mormon Emigrant Trail
2241
Comment
UCR248406
Cirsium andersonii
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
22001
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.8 mile north of its junction with CA-88 and near Jim Quinn Spring
2117
Comment
UCR173723
Cirsium occidentale var. candidissimum
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10572
El Dorado
Northern Sierra Nevada foothills, along Hwy US-50, 7.2 miles east of Ice House Canyon Road
1162
Comment
IRVC29533
Cirsium scariosum
G. K. Helmkamp, Elizabeth Helmkamp
1999-10-16
5320
Mono
Along Owens River, 0.6 mi NW of Benton's Crossing. Sierra Nevada Mountains
2119
Comment
UCR257777
Cirsium vulgare
George K. Helmkamp, Amy Barnes
2012-8-19
19679
El Dorado
Northern Sierra Nevada Mountains, unnamed dirt road along Ice House Road, 0.4 mile south of Robbs Peak Road, N of Union Valley Reservoir
1756
Comment
RSA779392
Cistanthe monosperma
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15080
El Dorado
Ice House Road, 8.2 miles north of its junction with CA-50, c. 10.5 air miles NE (73 deg ) of Pollock Pines
1646
Comment
UCR217876
Clarkia gracilis subsp. gracilis
George K. Helmkamp, Laurel Bezdecheck
2010-5-29
16129
El Dorado
Sierra Nevada Mountains Foothills, Slug Gulch Road, 2.9 miles east of its junction with Perry Creek road
1012
Comment
CAS-BOT-BC163637
Clarkia purpurea subsp. quadrivulnera
G. K. Helmkamp; E. A. Helmkamp
2010-6-23
16353
Amador
Sierra Nevada Mountains Foothills: Sutter Creek Road, 9.5 miles northeast of its junction with old CA-49 in Sutter Creek village
576
Comment
SEINET12806741
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, Elizabeth Helmkamp
2005-1
9432
Monterey
8 mi west of US 101 on Hwy CA-G-18 in Hames Valley
327
Comment
SEINET13203105
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp
2014-1
22885
Calaveras
Sierra Nevada Mountains Foothills: along CA-26, 2.6 miles northeast of CA-49 at Mokelumne Hill (Mokelumne Hill 7.5' Q.)
518
Comment
UCR159305
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9388
San Luis Obispo
Inner South Coast Ranges, Carrizo Hwy at Mile-19 (Calif. Hwy 58, east of Santa Margarita near Wilson Corner)
470
Comment
UCR173272
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10436
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River
370
Comment
CAS-BOT-BC229029
Clarkia rhomboidea
George K. Helmkamp; E. A. Helmkamp
2011-7-30
17906
El Dorado
Northern Sierra Nevada Mountains: Omo Ranch Road, 2.25 mi. NW (295 deg. ) of jct. with Hwy 88; 7.2 miles southeast of Omo Ranch
1346
Comment
CLARK-A1045-67
Clarkia similis
George K. Helmkamp
1978-5-18
Riverside
San Jacinto Mountains along State Highway 243 [vicinity of Mountain Center?]; in chaparral; ; Idyllwild 15'Q
1219
Comment
SEINET272172
Clarkia similis
G. K. Helmkamp, E. A. Helmkamp
1997-4-24
1657
Orange
Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring
549
Comment
RSA709019
Clarkia speciosa subsp. speciosa
George K. Helmkamp, E. A. Helmkamp
2005-5-12
9437
Monterey
Central Coast Ranges: 8 mi west of US-101 on Hwy CA-G-18 in Hames Valley.
341
Comment
UCR160970
Clarkia speciosa subsp. speciosa
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9659
San Luis Obispo
South Central Coast Range, Along Calif. Highway 229 (road to Creston), 5.5 mi N of Calif. Highway 58; beside West Branch of Huerhuero Creek
363
Comment
UCR249166
Clarkia stellata
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20795
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.9 miles NE of the Yuba County line, NE of Camptonville
796
Comment
UCR103289
Clarkia tembloriensis subsp. tembloriensis
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3617
Fresno
Inner South Coast Range, Warthan Creek Canyon, near Curry Mtn., c. 6-7 miles (airline) SW of Coalinga, along Calif. Hwy 198, 20.8 mi. west of Interstate 5
366
Comment
SD236340
Clarkia williamsonii
G. K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10793
Calaveras
Northern Sierra Nevada foothills: along Hwy CA-26, 0.6 mile past Sandy Gulch.
793
Comment
UCR157795
Clarkia xantiana
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4138
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
Comment Read comments Jun 4 2008
UCR197386
Claytonia parviflora
George K. Helmkamp, E. A. Helmkamp
2008-3-18
13182
Calaveras
Sierra Nevada Mountains Foothills, Jesus Maria Road, 0.5 mile south of CA-26, about 1.7 miles southeast of Mokelumne Hill
427
Comment
SEINET2441032
Claytonia parviflora subsp. grandiflora
George K. Helmkamp, E. A. Helmkamp
2010-5-13
16016
El Dorado
Sierra Nevada Mountains Foothills: Mosquito Road, 4.4 miles northeast of its junction with US-50 in Placerville. (Garden Valley 7.5' Q.).
620
Comment
CAS-BOT-BC439445
Claytonia parviflora subsp. parviflora
G. K. Helmkamp; E. A. Helmkamp
2008-4-30
13347
El Dorado
Sierra Nevada Mountains Foothills: junction of Meadow Brook and Bear Creek Roads at Traverse Creek, south of Georgetown.
674
Comment
SEINET1004399
Claytonia parviflora subsp. parviflora
George K. Helmkamp
2004-1
8228
San Luis Obispo
Central Coast: Nipomo Mesa, Pomeroy Rd, 1.1 mi N of Willow Rd.
130
Comment
UCD100685
Claytonia parviflora subsp. parviflora
G. K. Helmkamp; E. A. Helmkamp
2007-5-9
11975
El Dorado
Northern Sierra Nevada Foothills: Ice House Road, 2.0 miles northeast of US-50, c. 1.25 mi. NE of Riverton.
1220
Comment
UCR189484
Claytonia perfoliata
George K. Helmkamp, E. A. Helmkamp
2007-3-17
11640
Amador
Sacramento Valley/ Sierra Nevada Foothills, Hwy CA-24, 3.2 mi southwest of Plymouth near Tonzi Road
210
Comment
SEINET3828314
Claytonia perfoliata subsp. mexicana
George K. Helmkamp, E. A. Helmkamp
2010-1
15779
Sacramento
Sacramento Valley/lower Sierra Nevada Foothills: along CA-16 (Jackson Rd.)
82
Comment
UCR198468
Claytonia perfoliata subsp. perfoliata
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13155
Amador
Sierra Nevada Mountains Foothills, Middle Bar Road, 3.2 miles south of its junction with CA-49 at Scottsville
229
Comment
UCR140055
Clematis lasiantha
George K. Helmkamp
2004-4-21
8502
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
IRVC28950
Clematis ligusticifolia
G. K. Helmkamp
2003-9-21
8165
San Luis Obispo
Los Berros Rd, 0.9 mi SE of El Campo Rd., SE of Arroyo Grande Central Coast
46
Comment
SBBG123125
Clematis ligusticifolia
G. K. Helmkamp with E. A. Helmkamp
2007-7-23
12591
El Dorado
Traverse Crk Rd at the crossing of Traverse Crk, ca. 2 mi SE of its jct with Hwy 193
732
Comment
RSA0035679
Collinsia bartsiifolia var. bartsiifolia
George K. Helmkamp, Elizabeth A. Helmkamp
2013-5-24
20674
Calaveras
Whiskey Slide Road, 2.6 miles south of its junction with Jesus Maria Road, 7.9 mi. SE (118 ) of Mokelumne Hill
561
Comment
SD234522
Collinsia bartsiifolia var. bartsiifolia
G. K. Helmkamp, Elizabeth A. Helmkamp
2006-6-4
10632
El Dorado
Northern Sierra Nevada foothills: Rock Creek Road, about 2.2 miles east of its junction with Hwy CA-193.
423
Comment
UCR208331
Collinsia bartsiifolia var. bartsiifolia
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14548
El Dorado
Sierra Nevada Mountains Foothills, along CA-193, 1.1 miles south of the South Fork American River at Chili Bar
381
Comment
UCR250897
Collinsia bartsiifolia var. bartsiifolia
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20674
Calaveras
Northern Sierra Nevada Mountains Foothills, Whiskey Slide Road, 2.6 miles south of its junction with Jesus Maria Road, 7.9 mi. SE (118 deg. ) of Mokelumne Hill
561
Comment
UCR121592
Collinsia bartsiifolia var. davidsonii
George K. Helmkamp, E. A. Helmkamp
2002-4-22
7432
San Benito
San Andreas rift zone., Bitterwater Valley along Calif. Hwy 25, 17.6 mi north of Calif. Hwy 198
518
Comment
UCR140056
Collinsia bartsiifolia var. davidsonii
George K. Helmkamp
2004-4-21
8503
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCR158604
Collinsia bartsiifolia var. davidsonii
George K. Helmkamp, E. A. Helmkamp
2005-4-16
9353
Santa Barbara
Outer South Coast Range, Sierra Madre Mountains, 1.1 mi south of Calif. Hwy 166 on Miranda Pines Road
526
Comment
SD257327
Collinsia heterophylla
George K. Helmkamp, Elizabeth Helmkamp
2013-5-2
20454
El Dorado
Sierra Nevada Mountains Foothills: NW of Somerset, Bucks Bar Road, 1.1 miles southeast of its junction with Pleasant Valley Road (Camino 7.5'Q)
622
Comment
UCR129526
Collinsia heterophylla
George K. Helmkamp, E. A. Helmkamp
2001-5-31
6751
Santa Clara
San Francisco Bay, Mt. Hamilton Rd. east of San Jose at Mile-15
290
Comment
UCR159845
Collinsia heterophylla
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9622
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
UCR160565
Collinsia heterophylla
George K. Helmkamp, E. A. Helmkamp
2005-6-7
9544
San Luis Obispo
Outer South Coast Ranges, along Huasna Road, 1.3 mile west of Huasna Townsite Road
305
Comment
UCR140474
Collinsia heterophylla var. heterophylla
George K. Helmkamp
2004-4-23
8548
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd 0.8 mi E. of Midland School, c. 7 mi NE of Los Olivos
396
Comment
UCR173363
Collinsia heterophylla var. heterophylla
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10366
Amador
Northern Sierra Nevada Foothills, Near Enterprise, c. 0.4 mi. east of Calif. Hwy 88 on an unnamed dirt road (probably Bell Road)
305
Comment
SD237613
Collinsia tinctoria
G. K. Helmkamp, E. A. Helmkamp
2010-6-26
16369
Placer
Sierra Nevada Mountains Foothills: juncton of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax (Colfax 7.5'Q)
616
Comment
UCR87703
Collinsia torreyi
George K. Helmkamp, E. A. Helmkamp
1995-6-22
95- 5 -24
Calaveras
Sierra Nevada Mtns, along Calif. Hwy 4, 2.5 mi NE of Arnold
1479
Comment
UC2044601
Collinsia torreyi var. torreyi
George K. Helmkamp with Elizabeth Helmkamp
2013-6-19
20938
El Dorado
Northern Sierra Nevada Mountains Silver Fork Road, 0.8 mile north of Mormon Emigrant Trail and near Jim Quinn Spring, N of Carson Pass Highway. (Tragedy Spring 7.5' Q.)
Comment
UCR123914
Collomia grandiflora
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6928
Trinity
Trinity Mountains, Calif. Hwy 36, 2.2 mi west of the Trinity/Shasta Co. line
1159
Comment
RSA0013379
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2011-5-24
17366
El Dorado
Northern Sierra Nevada Mountains Foothills: Mesquite Road, 7.5 nukes south of its junction with Wentworth Springs Road.
1073
Comment
SEINET2445705
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12035
Placer
Northern Sierra Nevada Mountains Foothills. Mosquito Ridge Road near the crossing of the North Fork of the West Fork of the American River; 9.5 miles SE of Foresthill. (michigan Bluff 7.5' Q).
439
Comment
UCR219020
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16344
Amador
Sierra Nevada Mountains Foothills, Sutter Creek Road, 7.2 miles northeast of its junction with old CA-49 in Sutter Creek village
473
Comment
UCR231107
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18278
Calaveras
Northern Sierra Nevada Mountains Foothills, Bald Mountain Road, 1.5 miles SW of Hunter Creek crossing, 7.3 miles NE of the junction of Blue Mountain Rd and Rail Road Flat Rd
1037
Comment
UCD118094
Collomia linearis
G. K. Helmkamp
2007-7-7
12466
El Dorado
Northern Sierra Nevada Mountains: Along CA-89, 0.9 mile W of Luther Pass in the Grass Lake area.
712
Comment
UCR121930
Collomia linearis
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5932
Inyo
Sierra Nevada Mountains, Mosquito Flat, 0.9 mi south of Rock Creek Lake, beside Rock Creek
3140
Comment
UCR189015
Collomia linearis
George K. Helmkamp
2007-7-7
12466
El Dorado
Northern Sierra Nevada Mountains, along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area
2338
Comment
UCR197654
Collomia linearis
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13650
El Dorado
Northern Sierra Nevada Mountains, Cat Creek Road, 3.6 miles north of its junction with CA-88, the jct. is 4.2 miles east of Cook's Station
1753
Comment
UCR170425
Conyza bonariensis
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10020
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, c. 3 air mi NNW of Placerville]; South Fork of American River on the west side of Calif. Highway 193
291
Comment
UCR235296
Conyza bonariensis
George K. Helmkamp, E. A. Helmkamp
2011-11-21
18474 A
San Joaquin
Northeastern San Joaquin Valley, along Johnson Road, 0.8 mile south of its junction with CA-12, NE of Lockeford, SW of Camanche Reservoir
53
Comment
UCR193458
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2007-9-9
12917
Sacramento
Sacramento Valley, along Hwy CA-16, 0.8 mile west of the Amador County line
85
Comment
UCR205139
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14243
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
UCR232627
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18409
El Dorado
Northern Sierra Nevada Mountains Foothills, Forebay Road, 8.1 miles northwest of Pollock Pines at the south side of the bridge over the South Fork American River
611
Comment
UCR233044
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18328
El Dorado
Northern Sierra Nevada Mountains, Loon Lake Road at the junction to the campground at the south end of the lake
1973
Comment
UCR233285
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16954
El Dorado
Northern Sierra Nevada Mountains, Forest Route 31, 3.4 miles north of its junction with Peavine Ridge Road and Round Tent Canyon Road
1463
Comment
UCR58305
Cordylanthus rigidus
George K. Helmkamp
1989-10-7
s.n.
Riverside
San Bernardino Mtns., N edge of the fish hatchery in Whitewater Canyon, north of I-10
700
Comment
HSC104240
Cordylanthus tenuis subsp. tenuis
G. K. Helmkamp, Amy Barnes
2014-7-28
22955
El Dorado
Sierra Nevada Mountains; Wentworth Springs Rd., 3.8 mi. E of Stumpy Meadows Reservoir
1357
Comment
UCR189638
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12629
Placer
Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80
1744
Comment
UCR250615
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20891
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 8.3 miles east of its junction with Hwy E-16 at Jenkinsons Lake
1456
Comment
UCR102531
Coreopsis bigelovii
George K. Helmkamp, E. A. Helmkamp
1997-3-6
1357
Los Angeles
Tehachapi Mtns., Hills south of Gorman. Along Gorman Post Rd c. 1.1 mi. NW of Calif. Hwy 138
1128
Comment
UCR161936
Coreopsis douglasii
George K. Helmkamp, E. A. Helmkamp
2005-3-1
8987
San Luis Obispo
South Outer Coast Ranges, Santa Lucia Range NE of Lopez Lake; 4.8 mi. N of Hi Mountain Road along Upper Lopez Lake Road. Vicinity of Wittenberg and Huffs Hole Creeks
232
Comment
RSA792066
Coreopsis lanceolata
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19199
Nevada
Northern Sierra Nevada Mountains Foothills: village of Washington, Relief Hill Road, 0.4 miles north of its junction with Maybert Road and northeast of the bridge over the South Yuba River.
790
Comment
UCR171325
Coreopsis tinctoria
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9680
El Dorado
Northern Sierra Nevada Foothills, Cameron Park (E of Sacramento, along US Highway 50); corner of Santos Street and Santos Court Road
370
Comment
SD132260
Corethrogyne filaginifolia
G. Helmkamp
1990-9-5
Monterey
2 miles north of Gorda.
45
Comment
RSA750430
Cornus sericea subsp. sericea
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14020
Placer
Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River
1811
Comment
UCR158620
Cornus sericea subsp. sericea
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8653
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR234662
Cornus sericea subsp. sericea
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16835
Nevada
Northern Sierra Nevada Mountains, South Fork Yuba River, Forest Route 85 (Fordyce Lake Rd) north of Hampshire Rocks Road and I-80, 1 mi. NNW (351 deg. ) of Cisco
1634
Comment
SEINET3860250
Coronilla varia
George K. Helmkamp, Mary Alice Barnes; Mary Jane Ganibe
2010-7-6
16447
El Dorado
Sierra Nevada Mountains: Silver Fork road, at the junction with US-50 in Kyburz.; 0
1328
Comment
RSA751093
Crepis acuminata
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13782
El Dorado
north side of CA-88, 2.1 miles northeast of the junction with Mormon Emigrant Trail
2340
Comment
UCR123972
Crepis acuminata
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6839 A
Alpine
Sierra Nevada Mountains, Calif. Hwy 89, 7.1 mi west of US-395
2470
Comment
CLARK-A1045-294
Crossosoma bigelovii
George K. Helmkamp
1977-5-20
Riverside
San Jacinto Mountains .5 mile up from UC Research Station; rocky wall at base of Canyon; Palm Desert 15'Q
Comment
UCD142098
Croton setiger
G. K. Helmkamp; E. A. Helmkamp
2007-9-19
12982
El Dorado
Northern Sierra Nevada Mountains: along Greenstone Road just south of its junction with US-50 (east of Shingle Springs).
427
Comment
UCR233377
Croton setiger
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18294
Calaveras
Northern Sierra Nevada Mountains Foothills, along Schaad Road, 2.2 miles north of its junction with Blue Mountain Road, 4.8 miles due east (90 deg. ) of Westpoint
954
Comment
UCR233639
Croton setiger
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17786
Nevada
Northern Sierra Nevada Mountains Foothills, You Bet Road just northeast of its junction with CA-174, 1.25 mi. east (91 deg. ) of Peardale
778
Comment
UCR96379
Crypsis schoenoides
George K. Helmkamp
1996-9-21
1186
San Luis Obispo
Coast Ranges, Santa Margarita Lake, south picnic area
396
Comment
CAS-BOT-BC334216
Cryptantha affinis
George K. Helmkamp; E. A. Helmkamp
2011-8-6
18015
Amador
Northern Sierra Nevada Mountains: along dirt road 0.3 mile E of Bear River Reservoir Road, from a point 0.7 miles S of CA-88
1986
Comment
SEINET11261451
Cryptantha affinis
George Helmkamp, E. A. Helmkamp
2011-8-6
18015
Amador
Northern Sierra Nevada Mountains along dirt road .3 miles E of Bear River Reservoir Road, from a point .7 miles south of CA-88.; 0
1985
Comment
UCR102607
Cryptantha ambigua
George K. Helmkamp, E. A. Helmkamp
1997-9-12
2419
Mono
Eastern Sierra Nevada Mtns., Pumice Mine Rd, running NE from US Hwy 395, (N of the June Lake area); at S edge of Mono Craters
1997
Comment Read comments Nov 12 2015
UCR57543
Cryptantha ambigua
George K. Helmkamp
1989-8-1
s.n.
Mono
Sierra Nevada Mtns., West Walker River, at Hwy 395, 4 mi. south of Walker
1890
Comment
SD224871
Cryptantha angustifolia
G. K. Helmkamp
1998-3-30
3008
San Bernardino
Mojave Desert: Dale Dry Lake, E of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR122656
Cryptantha angustifolia
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2852
San Bernardino
Mojave Desert, north of Calif. Hwy 62 between Joshua Tree and 29 Palms; north on Leer Ave and 0.9 mile E on Amboy Rd.
732
Comment
UCR123981
Cryptantha angustifolia
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6388
San Bernardino
Mojave Desert, CA Hwy 62, 16.2 mi east of Utah Trail (Twentynine Palms) near Dale Lake
366
Comment
RSA712692
Cryptantha barbigera
George K. Helmkamp
1984-5-2
D- 10
Riverside
Big Morongo Canyon, 3 - 3.5 miles below the caretakers s house at the Big Morongo Preserve.
549
Comment
UCR51299
Cryptantha barbigera
George K. Helmkamp
1988-4-29
s.n.
San Bernardino
Eastern Mojave Desert, Fenner Valley between Hackberry Mtns & Vontrigger Hills, 11.3 mi NNW of Goffs
1100
Comment
UCR92482
Cryptantha barbigera
George K. Helmkamp
1995-3-16
s.n.
Riverside
Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center
200
Comment
UCR122800
Cryptantha circumscissa
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6341 A
San Bernardino
Eastern Mojave Desert, Goffs Rd, 8.1 mi east of Goffs
610
Comment
UCR140156
Cryptantha clevelandii
George K. Helmkamp
2004-4-1
8417
San Luis Obispo
Central Coast, Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of Halcyon Rd.
76
Comment
UCR15590
Cryptantha confertiflora
George K. Helmkamp
1978-5-29
s.n.
Mono
East Walker River at the Nevada border
1829
Comment
UCR256498
Cryptantha flaccida
George K. Helmkamp, Amy Barnes
2014-5-8
22842
Amador
Sacramento Valley/Sierra Nevada Foothills, Tonzi Road, 0.4 mile east of its junction with CA-124, 4.5 air miles NE (35 deg. ) of Ione
188
Comment
UCR15457
Cryptantha holoptera
George K. Helmkamp
1977-3-12
s.n.
Riverside
Sonoran (Colorado) Desert, Deep Canyon at the bottom of the main wash near marker 40. South of Palm Desert
305
Comment
UCR101789
Cryptantha intermedia
George K. Helmkamp, E. A. Helmkamp
1997-3-5
1322
Riverside
2.8 mi SE of Gilman Hot Springs
518
Comment
SDSU20826
Cryptantha mariposae
George L. Helmkamp, E. A. Helmkamp
2010-4-3
15796
Amador
Low foothills northern Sierra Nevada Mountains: 4.35 mi. NE of Ione, Junction of Tonzi Road and CA-124/East Plymouth HWY.
180
Comment
UCR103353
Cryptantha maritima
George K. Helmkamp, E. Helmkamp
1998-1-24
2595
Imperial
Sonoran (Colorado) Desert, Gravel Rd south of Hwy I-8. Rocky hills at W edge of Fort Yuma Indian Reservation.
61
Comment
UCR14499
Cryptantha pterocarya var. pterocarya
George K. Helmkamp
1974-5-4
s.n.
Inyo
Owens Valley, Pleasant Valley along the Owens River, 9 mi NW of Bishop
1311
Comment
CLARK-A1045-1283
Cryptantha racemosa
George K. Helmkamp
1978-3-16
San Diego
Anza-Borrego Desert State Park Canon sin Nombre [No-name Canyon]; silty deposit; Sweeney Pass 7.5'Q
Comment
HSC79081
Cryptantha racemosa
G. K. Helmkamp
1984-5-5
- 4
Riverside
Little San Bernardino Mtns., Big Morongo Canyon, 4 mi. below the caretaker's house at the Big Morongo Preserve
549
Comment
SBBG129259
Cryptantha torreyana
G. K. Helmkamp, E. A. Helmkamp
2013-7-10
21004
Amador
Plasse Rd toward Silver Lake, 0.3 mile south of CA-88/Carson Pass Highway
2276
Comment
UCR103535
Cryptogramma cascadensis
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2362
Mono
Sierra Nevada Mtns., along Calif. Hwy 120, 0.5 mile north of Tioga Pass, Nunatak Meadow area
2957
Comment
UCR171544
Cupressus bakeri
George K. Helmkamp, E. A. Helmkamp
2006-1-16
10045
El Dorado
Northern Sierra Nevada Foothills, Corner of Pleasant Valley Road and Patterson Drive, at the W end of Diamond Springs
537
Comment
UCD127372
Cymopterus terebinthinus var. californicus
G. K. Helmkamp; E. A. Helmkamp
2007-7-7
12505
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 12.0 miles south of its junction with CA-88.
2549
Comment
UCR124085
Cynodon dactylon
George K. Helmkamp, Elizabeth Helmkamp
2000-4-4
5350
San Bernardino
Sonoran (Colorado) Desert, Sacramento Spring. Along Calif. Hwy 95, 1.6 mi north of Interstate-40
396
Comment
UCR76727
Cyperus
George K. Helmkamp
1993-7-20
E- 2
Santa Clara
San Francisco Bay Region, Above Stevens Creek Reservoir, SE of Cupertino
488
Comment
UCR233416
Cyperus difformis
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18384
Glenn
Northern Sacramento Valley, Co. Road 61 (Riz Rd.), 2.6 miles east of CA-45 and at the junction with Co. Road V, 8.26 mi. SE (124 deg. ) of Willows
26
Comment
UCR190140
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2007-9-14
12950
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill
942
Comment
UCR193517
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2007-9-9
12916
Sacramento
Sacramento Valley, along Hwy CA-16, 0.8 mile west of the Amador County line
85
Comment
UCR241752
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2012-10-9
20008
Nevada
Northern Sierra Nevada Mountains Foothills, Higgins Corner; Combie Road, 0.1 mile east of its junction with CA-49, between Auburn and Grass Valley
445
Comment
UCR253490
Cyperus eragrostis
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20073
San Joaquin
San Joaquin Valley, Rock Creek, at East Sonora Road, 1.3 miles southeast of CA-4
50
Comment
UCR95912
Cyperus erythrorhizos
George K. Helmkamp
1996-9-21
1194
San Luis Obispo
Coast Ranges, Santa Margarita Lake, south picnic area
396
Comment
UCR171542
Cyperus esculentus
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9734
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
UCR79503
Cyperus odoratus
George K. Helmkamp
1993-11-4
X 11
Imperial
Sonoran (Colorado) Desert, Boat dock at edge of the old bed of the Colorado River, 0.25 mi south of Walter's Camp (30 mi by road south of Blythe)
91
Comment
UCD60381
Cystopteris fragilis
G. K. Helmkamp; E. A. Helmkamp
2007-4-27
11859
El Dorado
Northern Sierra Nevada Mountains: Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House.
1027
Comment
UCD105677
Cytisus scoparius
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-20
10503
El Dorado
Northern Sierra Nevada Foothills: ca. 5 air mi off CA Hwy 193, E of Georgetown; 1.7 mi. N of Wentworth Springs Road on Bottlehill Road (junction just E of Balderson Station).
972
Comment
UCR190205
Cytisus scoparius
George K. Helmkamp, E. A. Helmkamp
2007-7-23
12576
El Dorado
Northern Sierra Nevada Mountains Foothills, along Hwy CA-193, 1.0 mile south of Georgetown
771
Comment
UCR197368
Cytisus scoparius
George K. Helmkamp, E. A. Helmkamp
2008-4-25
13332
El Dorado
Sierra Nevada Mountains Foothills, along Bear Creek Road 0.4 mile southeast of its junction with Meadow Brook Road, SE of Georgetown
747
Comment
SD237264
Dactylis glomerata
G. K. Helmkamp, E. A. Helmkamp
2008-6-5
13606
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road. .5 mile north of its crossing if the South Fork American River.
668
Comment
UCR188557
Dactylis glomerata
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13016
El Dorado
Northern Sierra Nevada Mountains Foothills, Bonetti Road, 1.1 miles south of its junction with Mormon Emigrant Trail, just east of Jenkinson Lake
1189
Comment
UCR230109
Dactylis glomerata
George K. Helmkamp, E. A. Helmkamp
2011-5-26
17383
Nevada
Northern Sierra Nevada Mountains Foothills, SE of Grass Valley near Rollins Reservoir dam, along CA-174 NNW of Colfax, just west of the bridge over Bear River
613
Comment
UCR104808
Dalea mollissima
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2741
Riverside
Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd.
488
Comment
UCR175724
Danthonia californica var. americana
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10917
El Dorado
Northern Sierra Nevada Mountains, 0.5 mile east of the junction of Wright's Lake Road and the road from Ice House Reservoir
2056
Comment
IRVC29306
Datura stramonium
G. K. Helmkamp, E. A. Helmkamp
2004-10-8
8834
San Luis Obispo
Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek Central Coast
136
Comment
SEINET3246141
Daucus carota
G. K. Helmkamp, E. A. Helmkamp
2009-1
15662
El Dorado
Sierra Nevada Mountains Foothills: Cedar Ravine Road at the junction with Camp Nauvoo Road, 0.1 mile south of Weber Creek and c. 2.5 mi. SE of Placerville.
567
Comment
UCR219150
Daucus carota
George K. Helmkamp, E. A. Helmkamp
2009-9-30
15662
El Dorado
Sierra Nevada Mountains Foothills, Cedar Ravine Road at the junction with Camp Nauvoo Road, 0.1 mile south of Weber Creek and c. 2.5 mi. SE of Placerville
567
Comment
SD148084
Delphinium
G. K. Helmkamp, E. A. Helmkamp
2001-5-29
6700
San Benito
San Andrea Rift Zone: Coalinga Rd., 2 mi SE of Hernandez
732
Comment
UCR208275
Delphinium gracilentum
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14642
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill
771
Comment
UCR130967
Delphinium hansenii subsp. hansenii
George K. Helmkamp, E. A. Helmkamp
1998-5-13
3544
Kern
Southern Sierra Nevada Mtns., Greenhorn Mtns. Foothills, 6.5 mi. SW of Woody along Bakersfield/Glennville Rd (NE of Bakersfield). Near Horse Canyon
396
Comment
UCR175648
Delphinium nuttallianum
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10837
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 3.2 miles north of Hwy US-50, northeast of Kyburz
1982
Comment
UCD96271
Delphinium parryi
G. K. Helmkamp
2004-4-21
8481
Santa Barbara
San Rafael Mountains: Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
411
Comment
UCR122183
Delphinium patens subsp. patens
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7600
San Benito
Inner South Coast Ranges, County Hwy J-1(Panoche Rd) 15.6 mi SE of its junction with CA Hwy 25; along Tres Pinos Creek
671
Comment
UCR161330
Dendromecon rigida
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9019
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness north of Lake Lopez, Upper Lopez Canyon Road, 7.2 mi north of jct with Lopez Road and at Water End Road
174
Comment
SEINET3282778
Deschampsia cespitosa subsp. cespitosa
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13955
El Dorado
Northern Sierra Nevada Mountains; Dark Lake 0.4 mile northwest of the entrance to Wright's Lake along Wright's Lake Road.
2148
Comment
UCR96429
Deschampsia cespitosa subsp. cespitosa
George K. Helmkamp
1996-9-29
1246
Inyo
Mosquito Flats, [3.9 mi] south of Rock Creek Lake (S of Tom's Place)
3140
Comment
CLARK-A1045-463
Deschampsia danthonioides
George K. Helmkamp
1979-6-5
#1
San Bernardino
San Bernardino Mountains north end of Baldwin Lake; moist flat; Big Bear City 7.5'Q
Comment
UCD62794
Deschampsia danthonioides
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10945
El Dorado
Northern Sierra Nevada Mtns. Mount Ralston Trail and Hwy. U.S.-50, about 0.9 mile south of Twin Bridges.
1960
Comment
UCR120499
Deschampsia danthonioides
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1999-6-29
5030
Placer
Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon
2134
Comment
UCR176448
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10880 A
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 6.1 miles north of Hwy US-50; at the junction with the road from Ice House Reservoir
2030
Comment
UCR230707
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17822 B
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
UCR232248
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16698
Calaveras
Northern Sierra Nevada Mountains, along CA-4, 0.8 mile southwest of the junction with Forest Route 7N23/ Black Creek Rd., NE of Dorrington
1854
Comment
UCR51566
Deschampsia elongata
George K. Helmkamp
1987-6-17
s.n.
Mono
Owens Valley, Big Spring, beside Owens River
2256
Comment
UC2015608
Desmodium tortuosum
George Helmkamp
1995-10-23
San Bernardino
Mojave Desert: Yucca Valley. Weed in garden at 979 Old Woman Springs Road (Hwy 247), 8.2 miles N of Hwy 62
Comment
UCR196998
Dichelostemma
George K. Helmkamp, E. A. Helmkamp
2008-5-20
13478
Sierra
Sierra Nevada Mountains Foothills, Henness Pass road, 3.4 miles northeast of Camptonville
1261
Comment
UCD139227
Dichelostemma capitatum subsp. capitatum
G. K. Helmkamp; E. A. Helmkamp
2007-3-17
11655
Calaveras
Eastern Sacramento Valley: about 1 mile north of Burson on the road to south Comanche Reservoir.
152
Comment
UCR189471
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2007-3-17
11655
Calaveras
Eastern Sacramento Valley, about 1 mile north of Burson on the road to south Comanche Reservoir
152
Comment
UCR194875
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12125
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.2 miles north of North San Juan
610
Comment
UCR250888
Dichelostemma volubile
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20679
Calaveras
Northern Sierra Nevada Mountains Foothills, Whiskey Slide Road, just east of West Murray Creek Road, c. 4.7 miles SE of Jesus Maria Road
677
Comment
SD148231
Dieteria canescens var. canescens
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
6823
Mono
Virginia Lakes Road, 2.4 miles from U. S. 395.
2683
Comment Read comments Nov 9 2020
UCR58156
Dipsacus sativus
George K. Helmkamp
1989-8-6
s.n.
San Luis Obispo
Central Coast, Toro Creek Canyon Road, east of Hwy 101, just south of Cayucos
122
Comment
SEINET251709
Distichlis spicata
G. K. Helmkamp, E. A. Helmkamp
2004-6-24
8691
Santa Barbara
Central Coast: Ocean Park at Surf, NW of Lompoc (Surf7.5: near 34.41'2'N, -120.35.5'W)
6
Comment
UCR158758
Distichlis spicata
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8691
Santa Barbara
Central Coast, Ocean Park at Surf, NW of Lompoc
6
Comment
CLARK-A1045-148
Ditaxis neomexicana
George K. Helmkamp
1978-4-1
Riverside
Deep Canyon Palm Desert 15'Q
Comment
CAS-BOT-BC140641
Dittrichia graveolens
G. K. Helmkamp; E. A. Helmkamp
2009-10-30
15714
El Dorado
Sierra Nevada Mountains Foothills: Country Club Drive 0.1 mile east of its junction with Bass Lake Road, between El Dorado Hills and Cameron Park
343
Comment
CAS-BOT-BC229023
Dittrichia graveolens
George K. Helmkamp; E. A. Helmkamp
2011-10-15
18427
San Joaquin
San Joaquin Valley: along CA-26, 0.6 mile northeast of Escalon-Bellota Rd.
40
Comment
SD260177
Dittrichia graveolens
George K. Helmkamp, Elizabeth Helmkamp
2013-10-18
22449
El Dorado
Sierra Nevada Mountains Foothills: junction of Sand Ridge Road and CA-49, north of Plymouth.
267
Comment
UCR235302
Dittrichia graveolens
George K. Helmkamp, E. A. Helmkamp
2011-11-12
18452
El Dorado
Southeastern Sacramento Valley, 2.0 miles west of Latrobe on South Shingle Road
168
Comment
UCR161892
Dodecatheon clevelandii subsp. insulare
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9165
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 8.2 mi. NE of Los Olivos
488
Comment
UCR87513
Dodecatheon conjugens
George K. Helmkamp, E. A. Helmkamp
1993-5-4
87513
Modoc
25.6 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR15393
Dodecatheon hendersonii
George K. Helmkamp
1977-6-5
s.n.
San Bernardino
San Bernardino Mtns, city of Big Bear
2104
Comment
CAS-BOT-BC434185
Draba verna
George K. Helmkamp; Elizabeth Helmkamp
2013-4-13
20314
Nevada
Northern Sierra Nevada Mountains Foothills: Magnolia Road, 3.0 miles east of its junction with CA-49.
495
Comment
UCR88210
Drymocallis lactea var. lactea
George K. Helmkamp
1995-9-21
1- 12 B
Mono
Eastern Sierra Nevada Mountains, south edge of Lake Mary, south of Mammoth Lakes
2805
Comment
UCR198485
Dryopteris arguta
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13388 A
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
UCR230623
Dudleya cymosa subsp. cymosa
George K. Helmkamp, E. A. Helmkamp
2011-5-10
17246
Amador
Northern Sierra Nevada Mountains Foothills, along Sutter Creek near Sutter Creek Rd., 2.9 air miles NE (68 deg. ) of town of Sutter Creek
412
Comment
CAS-BOT-BC434948
Dysphania botrys
George K. Helmkamp; Elizabeth Helmkamp
2013-9-7
22283
Amador
Northern Sierra Nevada Mountains: on the south side of CA-88/Carson Pass Hwy, c. 0.3 mile west of the junction with Bear River Reservoir Road.
1934
Comment
UCD98730
Dysphania botrys
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11041
El Dorado
Northern Sierra Nevada Mountains. 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd.
2226
Comment
UCR219071
Dysphania botrys
George K. Helmkamp, E. A. Helmkamp
2009-9-15
15621
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 0.2 mile south of its junction with CA-88, 5.2 air mi. west of Bear River Reservoir
1622
Comment
UCR233024
Dysphania botrys
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18327
El Dorado
Northern Sierra Nevada Mountains, Loon Lake Road at the junction to the campground at the south end of the lake
1973
Comment
UCR257931
Dysphania botrys
George K. Helmkamp, Amy Barnes
2014-8-11
23021
El Dorado
Norhern Sierra Nevada Mountains, Wentworth Springs Road at the junction with Eleven Pines Rd., east of Stumpy Meadow Reservoir
1481
Comment
CAS-BOT-BC520341
Echinochloa colona
George K. Helmkamp; E. A. Helmkamp
2012-9-21
19891
Calaveras
Eastern San Joaquin Valley: Jenny Lind Road (Co. Rd J14), 0.2 mi S of jct with CA-26, WSW of Rancho Calaveras
99
Comment
UCR252968
Echinochloa colona
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22146
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 11.3 miles northeast of the town of Sutter Creek
582
Comment
SEINET2473441
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2007-1
12819
Amador
Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 at the south end of Plymouth
323
Comment
UCD74334
Echinochloa crus-galli
G. K. Helmkamp; E. A. Helmkamp
2007-8-26
12819
Amador
Northern Sierra Nevada Mountains: along Hwy. CA-49 at the south end of Plymouth.
323
Comment
UCR201570
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14269
Colusa
Sacramento Valley, along CA-20, 2 miles west of Meridian
14
Comment
CAS-BOT-BC445579
Echinodorus berteroi
George Helmkamp
1996-9-21
1190
San Luis Obispo
Santa Margarita Lake.
396
Comment
UCR131910
Ehrharta calycina
George K. Helmkamp
2003-11-22
8227
San Luis Obispo
Central Coast, base of Nipomo Mesa on unnamed road 0.1 mi SW of Halcyon Rd at the railroad crossing, just south of Arroyo Grande
15
Comment
CLARK-A1045-451
Eleocharis montevidensis
George K. Helmkamp
1979-6-20
San Bernardino
San Bernardino Mountains 3 miles from dump above Baldwin Lake; Big Bear City 7.5'Q
Comment
RSA794912
Eleocharis pachycarpa
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17712
Calaveras
Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
Comment
CLARK-A1045-1003
Eleocharis palustris
George K. Helmkamp
1978-3-3
Orange
Newport Beach wet ditch along Newport Back Bay; Newport Beach 7.5'Q
Comment
UCR201901
Eleusine tristachya
George K. Helmkamp, E. A. Helmkamp
2008-10-9
14227
San Joaquin
San Joaquin Valley, junction of Collier Road and CA-88, 1.1 miles north of the junction of CA-12 and CA-88, NE of Lodi
35
Comment
SEINET3271574
Elymus elongatus
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15310
Calaveras
Sierra Nevada Mountains; Ottawa Drive, 0.1 mile south of its junction with CA-4, 1.2 miles northeast of Dorrington
1471
Comment
SEINET3440054
Elymus elymoides
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17862
Placer
Northern Sierra Nevada Mountains: Emigrant Gap Road, 0.1 mi W of junction with US-80, 0.65 mi NE of Emigrant Gap
1590
Comment
UCR250660
Elymus glaucus
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20700
Calaveras
Northern Sierra Nevada Mountains Foothills, North side of Mokelumne River, west of Big Bar Road and the CA-49 bridge
198
Comment
CAS-BOT-BC444025
Elymus glaucus subsp. glaucus
George K. Helmkamp; Elizabeth Helmkamp
2013-7-31
22055
El Dorado
Northern Sierra Nevada Mountains: Ice House Road, 3.1 miles north of Ice House Resort, 0.18 mi. north of Jones Fork Power House Rd., 1.2 mi. NW of Ice House Reservoir.
468
Comment
UCR218763
Elymus glaucus subsp. glaucus
George K. Helmkamp, Laurel Bezdecheck
2010-6-19
16317
El Dorado
Sierra Nevada Mountains Foothills, about 0.1 mile south of Slug Gulch Road at a point 4.7 miles east of its junction with Perry Creek Road
1021
Comment
UCR235506
Elymus glaucus var. glaucus
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18965
Calaveras
Northern Sierra Nevada Mountains Foothills, along Murray Creek Road (Murraydale Ln.), 1.4 miles east of Pope Road in San Andreas
387
Comment
UCR237340
Elymus glaucus var. glaucus
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19156
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 2.6 miles north of its junction with CA-20
1088
Comment
UCR101619
Encelia farinosa
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2788
San Bernardino
Mojave Desert, NW side of Salt Spring Hills about 28 mi north of Baker; between the hills and Calif. Hwy 127
201
Comment
UCR51301
Encelia frutescens
George K. Helmkamp
1988-4-29
s.n.
San Bernardino
Eastern Mojave Desert, Fenner Valley between Hackberry Mtns & Vontrigger Hills, 11.3 mi NNW of Goffs
1100
Comment
UCR89581
Encelia frutescens
George K. Helmkamp
1994-3-10
42 9
Riverside
Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north
122
Comment
UCR123417
Ephedra californica
George K. Helmkamp, E. A. Helmkamp
2000-4-25
5604
Kern
Tehachapi Mountains, Oak Creek Rd., 1.5 mi east of Tehachapi Willow Springs Rd (about due west of Mojave and SE of Tehachapi.
1189
Comment
UCR104858
Ephedra trifurca
George K. Helmkamp, E. Helmkamp
1998-1-24
2569
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the jct of Calif. Hwy 98 with Hwy I-8)
46
Comment
UCD106912
Epilobium
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10897
El Dorado
Northern Sierra Nevada Mtns. Wright's Lake Road, 6.1 miles north of Hwy US-50; at the junction with the road from Ice House Reservoir.
2029
Comment
UCR175702
Epilobium
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10937
El Dorado
Northern Sierra Nevada Mountains, 1.1 miles west of Silver Creek along the road from Ice House Reservoir to Wright's Lake
2043
Comment
UCR189444
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12689
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road 0.8 mile south of its junction with CA-88; beside the Woods Creek crossing
2494
Comment
UCR245550
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22238
Alpine
Northern Sierra Nevada Mountains, Silver Creek, along CA-4, 5.0 miles west of its junction with CA-89
1927
Comment
UCR257863
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, Amy Barnes
2012-8-12
19617
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.8 mile SE of its junction with CA-88 and beside Woods Creek
2286
Comment
UCR258132
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19548
Amador
Northern Sierra Nevada Mountains, West Lake Road along the west side of Silver Lake; 4.1 miles north of junction with Plasse Road
2247
Comment
RSA0012026
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18206
El Dorado
Silver Fork Road, 3.1 miles south of its junction with US-50 in Kyburz
1447
Comment
SBBG92171
Epilobium brachycarpum
G. K. Helmkamp
1989-8-1
Mono
US Hwy 395, just S of Devil's Gate Summit
2255
Comment
SD236342
Epilobium brachycarpum
G. K Helmkamp, E. A. Helmkamp
2008-10-2
14190
Sacramento
Sacramento Valley: Latrobe Road, 4.9 miles west of Latrobe and just east of the El Dorado Co. line.
152
Comment
UCR132279
Epilobium brachycarpum
George K. Helmkamp
2003-8-31
8118
Santa Barbara
Central Coast, Casmalia Hills, 4 mi west of Calif. Hwy 1 (south of Guadalupe) along Brown Road
183
Comment
UCR171329
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2005-10-8
9999
El Dorado
Northern Sierra Nevada Foothills, SE off Calif. Highway 49 at junction of Patterson Drive and Pleasant Valley Road, SW of Diamond Springs
537
Comment
UCR179394
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11437
El Dorado
Northern Sierra Nevada Mountains Foothills, West Meadow Road 0.3 mile west of its junction with Ice House Road
1050
Comment
UCR219102
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2009-9-5
15602
Butte
Sacramento Valley, Honcut, on Palermo-Honcut Highway, 0.1 mile north of Lower Honcut Road
35
Comment
UCR219639
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2009-10-9
15668
El Dorado
Sierra Nevada Mountains Foothills, along Snows Road, 0.9 mile south of Carson Road in Camino. 0.3 mi. south of Hwy 50
933
Comment
UCR230089
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17052
Sutter
Sacramento Valley, along Nicolaus Ave. 0.5 miles east of Trowbridge
15
Comment
UCR253601
Epilobium brachycarpum
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20113
Sutter
Sacramento Valley, Kirkville Rd., west of CA-99 on Sacramento Ave. to the east side of the Sutter Causeway
17
Comment
CLARK-A1045-1166
Epilobium brevistylum
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCD105470
Epilobium canum subsp. latifolium
G. K. Helmkamp; E. A. Helmkamp
2007-9-11
12942
El Dorado
Northern Sierra Nevada Mountains. Along Wright's Lake Road, 3.2 miles N of its junction with US-50.
1991
Comment
UCR140990
Epilobium ciliatum
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4277
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR209041
Epilobium ciliatum
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15485
El Dorado
Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 21.6 miles north of CA-50
1716
Comment
UCR253558
Epilobium ciliatum
George K. Helmkamp, Amy Barnes
2013-9-23
22297
Calaveras
Sierra Nevada Mountains Foothills, Utica Powerhouse Road (beside Angel's Creek), 0.6 mile northeast of its junction with CA-4
974
Comment
UCR134430
Epilobium ciliatum subsp. ciliatum
George K. Helmkamp
2003-9-19
8150 A
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
UCR104828
Epilobium ciliatum subsp. glandulosum
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-25
2108
Mendocino
State Hwy 128, 1.5 mi. SE of Boonville, in Anderson Valley
152
Comment
UCR91830
Epilobium ciliatum subsp. watsonii
George K. Helmkamp
1996-5-25
1066
San Luis Obispo
Central Coast, between CA Hwy 1 and the ocean, 1.5 miles north of Piedras Blancas lighthouse near the northern border of the county
15
Comment
UCD106291
Epilobium densiflorum
G. K. Helmkamp; E. A. Helmkamp
2006-10-27
11577
El Dorado
Northern Sierra Nevada Mountains. City of Placerville. Along Spring Street, 0.1 mile N of its junction with CA-49.
573
Comment
UCR197624
Epilobium densiflorum
George K. Helmkamp, E. A. Helmkamp
2008-6-5
13601
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road at crossing of the South Fork American River
595
Comment
SEINET4178826
Epilobium glaberrimum
George K. Helmkamp, E. A. Helmkamp
2010-8-14
16794
Placer
Northerns Sierra Nevada Mountains: American Hill Road (Forest Route 13), 4.7 miles south of it's junction with Foresthill Road and just south of a creek crossing..
1551
Comment
CLARK-A1045-1142
Equisetum funstonii
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCR202563
Equisetum laevigatum
George K. Helmkamp, E. A. Helmkamp
2008-9-22
14158
Alpine
Northern Sierra Nevada Mountains, along CA-89. 0.1 mile north of Markleeville
1686
Comment
SEINET2473440
Eragrostis mexicana subsp. virescens
George K. Helmkamp, E. A. Helmkamp
2007-1
12853
El Dorado
Foothills, northern Sierra Nevada Mountains; Prospector Road, 0.1 mile north of Marshall Road near Indian Creek
2768
Comment
UCD97933
Eremogone kingii var. glabrescens
G. K. Helmkamp; E. A. Helmkamp
2006-8-30
11299
Alpine
Northern Sierra Nevada Mountains; Woods Lake, south of CA-88 and generally SE of Caples Lake. Besides Woods Creek.
2521
Comment
UCD170704
Eremothera refracta
G. K. Helmkamp; E. A. Helmkamp
1998-2-18
2739
Riverside
Chuckwalla Mountains: Graham Pass Road, 10.6 miles SSW of Chuckwalla Valley Road.
448
Comment
UCR58302
Eriastrum sapphirinum
George K. Helmkamp
1989-10-7
s.n.
Riverside
San Jacinto Mtns, N slope of Thomas Mtn, 1 mi. SW of Hwy 74 on Thomas Mtn Road
1500
Comment
UCR121738
Eriastrum wilcoxii
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5938
Mono
Sierra Nevada Mountains, McGee Creek Rd about 4 mi SW of US-395
2470
Comment
UCR132170
Eriastrum wilcoxii
George K. Helmkamp, E. A. Helmkamp
1993-7-28
184
Mono
Sierra Nevada Mountains, Long Valley mesa at the junction of Owens River Road and Lake Crowley
2104
Comment
UCR14516
Eriastrum wilcoxii
George K. Helmkamp
1974-5-4
s.n.
Inyo
Owens Valley, Owens River, Pleasant Valley
1372
Comment
UCR95905
Eriastrum wilcoxii
George K. Helmkamp
1996-10-17
1259
Mono
Owens Valley, 0.2 mi. south of Benton Hot Springs, beside Calif. Hwy 120
1745
Comment
UCR67022
Ericameria arborescens
George K. Helmkamp
1990-9-3
s.n.
San Luis Obispo
Central Coast, south end of Morro Bay, southwest of Baywood Park
15
Comment
UCR118335
Ericameria ericoides
George K. Helmkamp, E. A. Helmkamp
2000-9-1
5952
San Luis Obispo
Los Osos, c. 0.5 miles NW of Hazard Cyn., between Howard St. and sand dunes
6
Comment
UCR25530
Ericameria laricifolia
George K. Helmkamp
1981-10-8
s.n.
San Bernardino
eastern Mojave Desert, Providence Mtns, Mitchell Caverns, along hiking trail 0.5 mi. west of park headquarters.
1220
Comment
RSA613935
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3213
San Luis Obispo
Elkhorn Grade Rd, 6.3 mi. NW of jct with CA hwy 33 (roughly W of Maricopa).
549
Comment
UCR107320
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3648
Monterey
Coast Range, Peachtree Valley, along Calif. Hwy 198, 6.2 mi. west of the Fresno/Monterey County lines.
503
Comment
UCR122626
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7573
San Benito
Inner South Coast Ranges, County Hwy J-1(Panoche Rd) 15.6 mi SE of its junction with CA Hwy 25; along Tres Pinos Creek
671
Comment
UCR123423
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
2000-4-25
5595
Kern
Tehachapi Mountains, Tehachapi Valley SE of Tehachapi Willow Springs Rd, 2.3 mi north of Oak Creek Road
1524
Comment
UCR178763
Ericameria parryi
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11399
Alpine
Northern Sierra Nevada Mountains, west end of Caples Lake at a dam; alongside CA Hwy 88
2335
Comment
UCR116022
Ericameria parryi var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5873
Mono
Eastern Sierra Nevada Mountains, Humboldt-Toiyabe National Forest, 5.1 mi west of US Hwy 395 at Conway Summit, east of Trumbull Lake, on Virginia Lake Road
2927
Comment
UCR190639
Ericameria parryi var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2007-9-15
12969
El Dorado
Northern Sierra Nevada Mountains Foothills, Ice House Road 4.3 miles north of its junction with US-50
1393
Comment
UCR201744
Erigeron
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13946
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 2.2 miles south of the entrance to Wright's Lake
2070
Comment
UCR177231
Erigeron breweri
George K. Helmkamp, E. A. Helmkamp
2005-8-9
9808
El Dorado
Northern Sierra Nevada Mtns., El Dorado National Forest; west of Lake Tahoe; Ice House Road, 1.9 miles N of Wentworth Rd (turnoff to Stump Meadows)
1649
Comment
CAS-BOT-BC294542
Erigeron breweri var. breweri
G. K. Helmkamp; E. A. Helmkamp
2008-8-1
13958
El Dorado
Northern Sierra Nevada Mountains: Forestry Route 42 at Silver Creek, 0.2 mile west of the junction with Wright's Lake Road
2021
Comment
UCR59472
Erigeron breweri var. breweri
George K. Helmkamp
1989-7-31
s.n.
Mono
Sierra Nevada Mtns, just south of Mammoth Village [in Mammoth Lakes] and at the edge of Snow Creek [Golf Course]
2439
Comment
UCR201921
Erigeron canadensis
George K. Helmkamp, E. A. Helmkamp
2008-10-9
14234
San Joaquin
San Joaquin Valley, junction of Collier Road and CA-88, 1.1 miles north of the junction of CA-12 and CA-88, NE of Lodi
35
Comment
UCR235295
Erigeron canadensis
George K. Helmkamp, E. A. Helmkamp
2011-11-21
18475
San Joaquin
Northeastern San Joaquin Valley, along Johnson Road, 0.8 mile south of its junction with CA-12, NE of Lockeford, SW of Camanche Reservoir
53
Comment
UCD131838
Erigeron coulteri
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10965
El Dorado
Northern Sierra Nevada Mtns: Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50.
2104
Comment
UCR129546
Erigeron divergens
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6817
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
UCR159846
Erigeron foliosus var. foliosus
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9639
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
RSA794537
Erigeron foliosus var. hartwegii
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17751
Nevada
You Bet Road, 2.6 miles east of its junction with CA-174 and at the crossing over Greenhorn Creek, 3.18 miles ESE (95deg.) of Peardale
686
Comment
UCR193335
Erigeron foliosus var. hartwegii
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12194
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 15 miles east of its junction with Forest Hill Road in Foresthill, south of site of Bake Oven
915
Comment
UCR218122
Erigeron foliosus var. hartwegii
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16391
Placer
Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way
591
Comment
RSA781312
Erigeron lassenianus var. lassenianus
George K. Helmkamp, E. A. Helmkamp
2009-7-22
15272
El Dorado
Wrights Lake Road, 1.2 miles south of Wrights Lake
2073
Comment
UCR175722
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11047
El Dorado
Northern Sierra Nevada Mountains, along Wrights Lake Road (Forest Route 4), 3.3 miles north of Hwy US-50
2049
Comment
UCR177875
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11198
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring; Tragedy Spring Road, 0.3 mile north of Calif. Hwy 88
2424
Comment
UCR190330
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, E. A. Helmkamp
2007-8-1
12656
Nevada
Northern Sierra Nevada Mountains, Soda Lake Road in the vicinity of Lake Van Norden, 0.2 mile south of Donner Pass Road
2073
Comment
UCR229438
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18070
Alpine
Northern Sierra Nevada Mountains, south side of Bear Valley Village, along CA Hwy 4
2169
Comment
UCR250157
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20937
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.8 mile north of Mormon Emigrant Trail and near Jim Quinn Spring, N of Carson Pass Hwy
2116
Comment
UCR160752
Eriodictyon californicum
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9523
Monterey
Outer Central Coast Ranges; Santa Lucia Range, 5.0 mi east of Calif. Hwy 1 along Los Burros Road
826
Comment
UCR194928
Eriodictyon californicum
George K. Helmkamp, E. A. Helmkamp
2007-5-22
12043
El Dorado
Northern Sierra Nevada Mountains Foothills, Mormon Emigrant Trail, 5.2 miles east of its junction with Sly Park Road at Jenkinson's Lake
1372
Comment
UCR196790
Eriodictyon californicum
George K. Helmkamp, E. A. Helmkamp
2008-6-5
13592
El Dorado
Sierra Nevada Mountains, Forbay Road, 5.3 miles north of its junction with Pony Express Trail in Pollock Pines
947
Comment
UCR253227
Eriodictyon californicum
George K. Helmkamp, Amy Barnes
2014-4-23
22815
Placer
Sierra Nevada Mountains Foothills, Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill
720
Comment
CLARK-A1045-80
Eriodictyon crassifolium
George K. Helmkamp
1977-4-30
Riverside
San Jacinto Mountains Lake Fulmor 7.5'Q
Comment
UCR159849
Eriodictyon tomentosum
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9642
San Luis Obispo
South Central Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 6.7 miles east of Santa Margarita
485
Comment
RSA643799
Eriogonum
George K. Helmkamp
1996-10-17
1255
Mono
1.2 mile NNE of Benton Hot Springs, beside highway CA-120
1799
Comment
UCR132169
Eriogonum ampullaceum
George K. Helmkamp, E. A. Helmkamp
1993-7-28
182
Mono
Sierra Nevada Mountains, Long Valley mesa at the junction of Owens River Road and Lake Crowley
2104
Comment
UCR15443
Eriogonum baileyi var. baileyi
George K. Helmkamp
1977-9-1
s.n.
El Dorado
Sierra Nevada Mtns., Grass Lake at Luther Pass
2356
Comment
UCR79513
Eriogonum baileyi var. baileyi
George K. Helmkamp
1993-9-22
33- 06
San Bernardino
San Bernardino Mtns./Mojave Desert, 5.9 mi up Burns Canyon from crossing of Pioneertown and Pipes Canyon Roads
1585
Comment
UCR89430
Eriogonum baileyi var. baileyi
George K. Helmkamp
1990-8-2
s.n.
Mono
Sierra Nevada Mtns, between Mammoth and Lake Mary
2591
Comment
UCR103817
Eriogonum brachyanthum
George K. Helmkamp, E. A. Helmkamp
1997-9-10
2346
Mono
Eastern Sierra/ Great Basin, River Spring Lakes, 3.1 mi. NE of Calif. Hwy 120 on River Springs Rd
1979
Comment
UCR15186
Eriogonum brachyanthum
George K. Helmkamp
1976-10-24
s.n.
Inyo
Roadside, US 395, in a lava bead north of Manzanar
1189
Comment
CLARK-A1045-937
Eriogonum davidsonii
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, 3 miles north of the Kern/Tulare County line; Kernville 7.5' Q
Comment
UCR122586
Eriogonum davidsonii
George K. Helmkamp
1995-11-16
100
Riverside
San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor)
1616
Comment
SD143789
Eriogonum deflexum var. deflexum
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2899
Imperial
7 miles north of Winterhaven, on Picacho Road and 1.7 miles east on powerline road, Desert pavement with small sandy washes. (IPB 10/07)
198
Comment
UCR146827
Eriogonum elongatum
George K. Helmkamp, E. A. Helmkamp
2004-9-23
8802
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd., 12.5 mi NE of Los Olivos and near the turnoff to Figueroa Mountain
1037
Comment
SD225069
Eriogonum gracile var. gracile
G. K. Helmkamp
1997-9-29
2448
Inyo
Sierra Nevada Mtns; Onion Valley Rd, 7.9 mi W of US-395 from Independence;
2158
Comment
CLARK-A1045-1027
Eriogonum incanum
George K. Helmkamp
1977-7-3
Mono
Sierra Nevada road to the Lake; rock ledge; ; Mount Dana 7.5' Q
2895
Comment
CLARK-A1045-854
Eriogonum inflatum
George K. Helmkamp
1977-5-29
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
UCR67383
Eriogonum microthecum var. ambiguum
George K. Helmkamp
1990-9-23
D- 9
Lassen
20 mi north of Litchfield along US Hwy 395
1437
Comment
UCR118185
Eriogonum molestum
George K. Helmkamp, E. A. Helmkamp
1998-6-27
4073
Riverside
San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd.
1372
Comment
UCR122585
Eriogonum molestum
George K. Helmkamp
1995-11-16
101
Riverside
San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor)
1616
Comment
CLARK-A1045-687
Eriogonum nidularium
George K. Helmkamp
1978-5-6
San Bernardino
Mojave Desert Kingston Road; Clark Mt 15'Q
Comment
RSA492827
Eriogonum nidularium
George K. Helmkamp
1988-4-29
s.n.
San Bernardino
Eastern Mojave Desert Fenner Valley between Hackberry Mtns and Vontrigger Hills, 11.3 mi NNW of Goffs.
1100
Comment
SBBG129027
Eriogonum nudum var. deductum
G. K. Helmkamp, E. A. Helmkamp
2013-8-14
22245
Alpine
CA-4, 12.4 mi SW of the CA-89 jct and just N of Kinney Reservoir
2540
Comment
SEINET3246086
Eriogonum nudum var. deductum
G. K. Helmkamp, E. A. Helmkamp
2007-1
12636
Placer
Northern Sierra Nevada Mountains: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80.
1743
Comment
SEINET4560539
Eriogonum nudum var. deductum
George K. Helmkamp, Elizabeth Helmkamp
2013-1
22245
Alpine
Northern Sierra Nevada Mountains: along CA-4, 12.4 miles southwest of the CA-89 junction and just north of Kinney Reservoir.
2540
Comment
UCR103539
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
1997-9-12
2407
Mono
Along Calif. Hwy 120, 7.5 mi east of US Hwy 395
2125
Comment
UCR175733
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11063
El Dorado
Northern Sierra Nevada Mountains, along Wrights Lake Road (Forest Route 4), 3.3 miles north of Hwy US-50
2049
Comment
UCR189420
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12749
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 1.0 mile south of the junction with Mormon Emigrant Trail
2172
Comment
UCR189613
Eriogonum nudum var. deductum
George K. Helmkamp, Elizabeth Helmkamp, Amy Barnes
2007-6-20
12365
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 13.2 miles ESE of its junction with Sly Park Road at Jenkinson Lake
1976
Comment
UCR231841
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2010-8-14
16788
Placer
Northern Sierra Nevada Mountains, American Hill Road (Forest Route 13), 4.7 miles south of its junction with Foresthill Road and just south of a creek crossing
1552
Comment
UCR258371
Eriogonum nudum var. deductum
George K. Helmkamp, Amy Barnes
2014-8-11
22979
El Dorado
Northern Sierra Nevada Mountains, north of Union Valley Reservoir, junction of Robbs Peak Road and Ice House Road
1655
Comment
RSA714092
Eriogonum nudum var. nudum
George K. Helmkamp, E. A. Helmkamp
2005-10-1
9993
Placer
Northern Sierra Nevada Mts.: NW of Lake Tahoe; Junction of Bear Creek Road and Big John Drive (ca. 2.2 miles west of CA Highway 89 and just south of Alpine Meadows Road)
2015
Comment
UCR230643
Eriogonum nudum var. nudum
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17815
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
UCR230738
Eriogonum nudum var. nudum
George K. Helmkamp, E. A. Helmkamp
2010-9-30
16982
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 4.3 miles north of its junction with Wentworth Springs Road, 0.65 mi. SSW of Loon Lake
1976
Comment
UCD100546
Eriogonum nudum var. oblongifolium
G. K. Helmkamp; E. A. Helmkamp
2007-9-1
12860
El Dorado
northern Sierra Nevada Mountains, Happy Valley cutoff road 0.2 mile southeast of its junction with CA-E-16 (generally northeast of Somerset.)
607
Comment
UCR218124
Eriogonum nudum var. oblongifolium
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16393
Placer
Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way
591
Comment
UCR229533
Eriogonum nudum var. oblongifolium
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17860
Placer
Northern Sierra Nevada Mountains, Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 mi. NE (65 deg. ) of Emigrant Gap
1590
Comment
UCSB70078
Eriogonum nudum var. oblongifolium
Helmkamp, G.; Helmkamp, E.
2007-9-14
Placer
Foothills, northern Sierra Nevada Mountains: along Mosquito Ridge Road 6 miles east of Foresthill (Foresthill 7.5' Q)
610
Comment
UCR134477
Eriogonum nudum var. westonii
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4262
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR209767
Eriogonum roseum
George K. Helmkamp, E. A. Helmkamp
2009-8-14
15476
El Dorado
Sierra Nevada Mountains Foothills, junction of Sand Ridge Road and Cutaway Lane, 2.0 miles west of Bucks Bar Road
642
Comment
UCR210048
Eriogonum roseum
George K. Helmkamp, E. A. Helmkamp
2009-8-14
15460
El Dorado
Foothills, northern Sierra Nevada Mountains, Bucks Bar Road, 3.9 miles south of Pleasant Valley Road
625
Comment
SEINET4691464
Eriogonum spergulinum var. reddingianum
George K. Helmkamp, E. A. Helmkamp
2011-1
18098
Alpine
Northern Sierra Nevada Mountains: Blue Lakes Road, 6.6 miles south of its junction with CA-88.
2296
Comment
UCR115851
Eriogonum spergulinum var. reddingianum
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5865
Mono
Eastern Sierra Nevada Mountains, Humboldt-Toiyabe National Forest, 5.1 mi west of US Hwy 395 at Conway Summit, east of Trumbull Lake, on Virginia Lake Road
2927
Comment
RSA614560
Eriogonum thomasii
George K. Helmkamp
1998-3-30
3040
San Bernardino
Vicinity of Twentynine Palms; Encelia Rd, 1.0 mi. N of CA hwy 62.
793
Comment
SEINET2042326
Eriogonum thomasii
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6354
San Bernardino
NE side of jct. Of US-95 & I-40.
366
Comment
UCR104038
Eriogonum thomasii
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2674
Riverside
Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road.
457
Comment
CLARK-A1045-38
Eriogonum trichopes
George K. Helmkamp
1977-4-24
Inyo
Death Valley
Comment
CLARK-A1045-757
Eriogonum trichopes
George K. Helmkamp
1977-5-14
San Bernardino
Mojave Desert blackbrush area south of Interstate Highway 15; ; Mescal Range 15'Q
1402
Comment
RSA567422
Eriogonum umbellatum subsp. munzii
George K. Helmkamp
1993-9-22
35 -18
San Bernardino
Steep canyon side with Pinon Pine. 14.4 mi. up Burns Canyon from junction of Pioneer Town and Pipes Cyn Rds.
2073
Comment
UCD101444
Eriogonum umbellatum var. furcosum
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11023
El Dorado
Northern Sierra Nevada Mountains, North Truckee River Road, 1.4 miles north of CA-50 and ca. 6 miles south of Lake Tahoe.
2009
Comment
UCR196987
Eriogonum umbellatum var. nevadense
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13867
Alpine
Eastern Sierra Nevada Mountains, Blue Lake Road just southeast of its junction with CA-88
2180
Comment
UCR206598
Eriogonum umbellatum var. polyanthum
George K. Helmkamp, Ann Kerchner
2009-7-25
15295
Alpine
Sierra Nevada Mountains, Blue Lakes Road, 8.5 miles south of its junction with CA-88
2491
Comment
RSA0093526
Eriogonum vimineum
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11387
Alpine
Northern Sierra Nevada Mountains. along Calif. Hwy 89, 1.5 miles east of the El Dorado County line, general vicinity of Luther Pass.
2186
Comment
RSA667118
Eriogonum wrightii var. subscaposum
George K. Helmkamp, E. A. Helmkamp
1997-9-9
2304
Alpine
Leviathan Lookout Rd at the S and W sides of Leviathan Peak, NW of Monitor Pass. (1)
2683
Comment
RSA750702
Eriogonum wrightii var. subscaposum
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14023
Placer
Donner Pass Road on the west side of Donner Pass and east of Norden.
2149
Comment
UCR122311
Eriogonum wrightii var. subscaposum
George K. Helmkamp, E. A. Helmkamp
1997-9-9
2304
Alpine
Sierra Nevada Mountains, Leviathan Lookout Road at the S and W sides of Leviathan Peak, NW of Monitor Pass
2683
Comment
UCR209012
Eriogonum wrightii var. subscaposum
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15498
El Dorado
Sierra Nevada Mountains, along Ice House Road at SW shore of Loon Lake, 2.6 miles south of its end on the north side of the lake
1973
Comment
UCR103967
Eriophyllum confertiflorum
George K. Helmkamp
1997-6-22
2077
San Luis Obispo
Central Coast, South end of Montana de Oro State Park
15
Comment
UCR130635
Eriophyllum confertiflorum var. confertiflorum
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4656
San Diego
Peninsular Ranges, c. 5 mi NE of Alpine. Old Viejas Grade at the E side of Viejas Mtn., 0.6 mi east of the Viejas Indian Reservation
854
Comment
RSA755891
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14755
Colusa
Along CA-16, 1.8 miles north of the Yolo County line
271
Comment
SBBG129059
Eriophyllum lanatum var. achilleoides
G. K. Helmkamp, E. A. Helmkamp
2013-6-5
20793
Sierra
CA-49, 1.9 mi NE of the Yuba County line, NE of Camptonville
796
Comment
UCR207846
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14708
El Dorado
Sierra Nevada Mountains Foothills, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
Comment
UCR257064
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20620
Calaveras
Northern Sierra Nevada Mountains Foothills, Poloma Road at its junction with Cosgrove Creek Road, 3 miles NE (30 deg. ) of Valley Springs
279
Comment
UCR194700
Eriophyllum lanatum var. croceum
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12205
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 17 miles east of its junction with Forest Hill Road in Foresthill, NW of Ditch Camp
963
Comment
UCR251252
Eriophyllum lanatum var. croceum
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19331
El Dorado
Northern Sierra Nevada Mountains, Ice House Road at Ice House village, 10.5 miles north of its junction with US-50
1677
Comment
UCR256971
Eriophyllum lanatum var. croceum
George K. Helmkamp
2014-5-17
22892
Calaveras
Sierra Nevada Mountains Foothills, between Sandy Gulch and Glencoe along CA-26, 0.1 mile north of the bridge over South Fork Mokelumne River
608
Comment
UCR196863
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, E. A. Helmkamp
2008-6-3
13563
El Dorado
Sierra Nevada Mountains, Pony Express Trail, 0.8 mile east of Sly Park Road (Pollock Pines) and parallel to US-50
1213
Comment
UCR242813
Eriophyllum lanatum var. integrifolium
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16905
Amador
Northern Sierra Nevada Mountains, Dufrene Road 0.7 mile east of its junction with CA-88, north of Lower Bear River Reservoir
2044
Comment
UCR130249
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6504
Kern
Tehachapi Mtns, Hart Flat turnoff from Calif. Hwy 58
884
Comment
UCR188175
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11891
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
UCR233123A
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17328
Calaveras
Northern Sierra Nevada Mountains Foothills, Ridge Road, 1.9 rd. miles southeast of CA-26, 1.8 air mi. southeast (130 deg. ) of Glencoe
863
Comment
UCR233139B
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15775
Amador
Eastern San Joaquin Valley/ Sierra Nevada Foothills, low foothills along CA-16, 6.8 miles west of Plymouth near Forest Home Rd.
177
Comment
UCR253514
Erodium botrys
George K. Helmkamp
2014-4-5
22664
Amador
Sierra Nevada Foothills, junction of Tonzi Road and CA-124, NE of Ione
201
Comment
SD234416
Erodium cicutarium
G. K. Helmkamp, E. A. Helmkamp
2006-3-19
10089
Amador
Northern Sierra Nevada Foothills: Along CA Highway 49 just S of Plymouth (Amador City 7.5' Q)
323
Comment
SEINET13203094
Erodium moschatum
George K. Helmkamp, Amy Barnes
2014-1
22591
Sutter
Sacramento Valley: aling CA-20 (Colusa Hwy), 1.3 miles west of its junction with Acacia Ave., 1.7 air mi. SW of Sutter (Sutter Buttes 7.5' Q.)
13
Comment
UCR122645
Erodium texanum
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2845
San Bernardino
Mojave Desert, north of Calif. Hwy 62 between Joshua Tree and 29 Palms; north on Leer Ave and 0.9 mile E on Amboy Rd.
732
Comment
UCR160291
Eruca vesicaria subsp. sativa
George K. Helmkamp
2004-5-1
8555
San Luis Obispo
Central Coast, south of Arroyo Grande along Calif. Hwy 1, south of Callender Rd beside Conoco-Phillips refinery
30
Comment
UCR256984
Erysimum capitatum var. capitatum
George K. Helmkamp
2014-5-17
22894
Calaveras
Sierra Nevada Mountains Foothills, between Sandy Gulch and Glencoe along CA-26, 0.1 mile north of the bridge over South Fork Mokelumne River
608
Comment
SD234525
Erythranthe guttata
G. K. Helmkamp, E. A. Helmkamp
2007-5-30
12183
Placer
Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 13.5 miles east of its junction with Forest Hill Road in Foresthill, between Mosquito Ridge Lookout and North Fork of Middle Fork American River.
800
Comment
SD237619
Erythranthe lewisii
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15275
El Dorado
Sierra Nevada Mountains Forestry Route 42, 1.6 miles wet of its junction with Wrights Lake Road (Kyburz 7.5'Q)
1851
Comment
CAS-BOT-BC173163
Erythranthe microphylla
G. K. Helmkamp; E. A. Helmkamp
2008-4-25
13330
Calaveras
Sierra Nevada Mountains Foothills: along Bear Creek Road 0.4 mile southeast of its junction with Meadow Brook Road, SE of Georgetown
747
Comment
SD212734
Erythranthe moschata
G. K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9873
El Dorado
Silver Fork, 2.1 miles west of Kyburz along US Highway 50.
1203
Comment
UCR206723
Eschscholzia
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14393
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 7.0 miles south of the junction with CA-20; just north of the Yolo County line
194
Comment
CAS-BOT-BC520357
Eschscholzia caespitosa
George K. Helmkamp; Mary Alice Barnes
2013-5-17
20633
Calaveras
Northern Sierra Nevada Mountains Foothills: Poloma Rd at its jct with Cosgrove Creek Rd, 3 mi NE (30 deg. ) of Valley Springs
278
Comment
UCD95252
Eschscholzia caespitosa
G. K. Helmkamp; E. A. Helmkamp
2004-10-1
8828
San Luis Obispo
San Luis Obispo County: Central Coast; Outer South Coast Range; 3.4 miles east of Lopez Lake along Hi Mountain Road and beside Arroyo Grande Creek.
171
Comment
UCR122463
Eschscholzia caespitosa
George K. Helmkamp, E. A. Helmkamp
1998-5-20
4003
San Luis Obispo
Central Coast, Irish Hills, 3.1 miles SE of Los Osos Valley Rd on Clark Valley Rd., SE of Los Osos
351
Comment
CAS-BOT-BC403433
Eschscholzia californica
G. K. Helmkamp; E. A. Helmkamp
1999-4-18
4701
San Diego
Between Lake Henshaw & Matagual Valley: Barrett Hill Rd off of Hwy-79, ca 6.5 mi SW of Warner Hot Springs.
838
Comment
SEINET3411987
Eschscholzia californica
George K. Helmkamp, E. A. Helmkamp
2012-3-31
18645
Placer
Sacramento Valley: along CA-193, 0.1 mile W of its junction with Sierra College Blvd.
88
Comment
UCR134453
Eschscholzia californica
George K. Helmkamp
2003-9-26
8181
San Luis Obispo
Central Coast, SW edge of Oceano; border of sand dune recreation area
6
Comment
SD225053
Eschscholzia minutiflora
G. K. Helmkamp
1998-4-4
3133
Riverside
Southern Mojave Deset: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center- Rice Rd.)
474
Comment
UCR102987
Eschscholzia minutiflora
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2834
San Bernardino
Mojave Desert, 50 ft. north of the boundary of Joshua Tree National Park at the S end of Sunkist Rd (E of town of Joshua Tree)
884
Comment
UCR176428
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11159
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 21.0 miles east of its junction with Sly Park Road
2174
Comment
SD148144
Eucrypta chrysanthemifolia var. chrysanthemifolia
G. K. Helmkamp, E. A. Helmkamp
2001-5-2
6620
San Luis Obispo
La Panza Range: CA-58, 11.2 miles east of Santa Margarita.
487
Comment
UCR161225
Eucrypta chrysanthemifolia var. chrysanthemifolia
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9038 A
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness N of Lopez Lake, Upper Lopez Canyon Road, 5.5 mi N of jct with Lopez Road
335
Comment
CLARK-A1045-513
Euphorbia albomarginata
George K. Helmkamp
1979-6-5
#1
San Bernardino
San Bernardino Mountains north of Baldwin Lake and State Highway 38; sagebrush-juniper area; ; Big Bear City 7.5' Q
2133
Comment
UCR133224
Euphorbia albomarginata
George K. Helmkamp
1993-9-12
22- 04
San Bernardino
San Bernardino Mtns, Burns Canyon, in the vicinity of Burns Spring
1524
Comment
UCR219042
Euphorbia maculata
George K. Helmkamp, E. A. Helmkamp
2009-8-28
15538
Sacramento
Northern Sacramento Valley, along Latrobe Road, 1.1 miles west of the El Dorado County line, 3 mi. NE (36 deg. ) of Rancho Murieta
140
Comment
UCR123375
Euphorbia nutans
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5052
Placer
Sierra Nevada Foothills, corner of Dry Creek Rd & Bowman Rd, near Nielsburg, 3 mi NE of Auburn beside I-80 & 1.5 NW of North Fork Lake on American River
457
Comment
UCR259878
Euphorbia nutans
George K. Helmkamp, Elizabeth Helmkamp
2013-11-2
22463
Placer
Sacramento Valley, Highway CA-193 (Lincoln-Newcastle Hwy) at the junction with Gold Hill Road, 3.8 miles northwest of US-80
114
Comment
SEINET998807
Euphorbia nutans
G. K. Helmkamp, E. A. Helmkamp
2006-1
11566
Amador
Central Valley/Northern Sierra Nevada Foothills: along CA-16 0.2 miles east of Waits Station, southwest of Plymouth (Irish Hill 7.5')
305
Comment
UCR173998
Euphorbia oblongata
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10807
Amador
Northern Sierra Nevada foothills, northbound along Calif. Hwy 26, 0.6 mile past the North Fork of Mokelumne River
732
Comment
UCR241379
Euphorbia oblongata
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19870
Calaveras
Northern Sierra Nevada Mountains Foothills, trailhead parking area at the west side of CA-49, south of the bridge over the Mokelumne River, NW of Mokelumne Hill
564
Comment
UCR50973
Euphorbia pediculifera
George K. Helmkamp
1988-2-28
s.n.
Imperial
Sonoran (Colorado) Desert, at end of a dirt road c. 2 miles WSW of Crucifixion Thorn Natural Area, SE of Ocotillo and SW of Hwy 98
153
Comment
UCR134697
Euphorbia peplus
George K. Helmkamp
2003-9-17
8141
San Luis Obispo
Central Coast, 765 Mesa View Dr., 0.2 mi south of Halcyon Rd in the Arroyo Grande area
46
Comment
UCR219120
Euphorbia serpillifolia subsp. hirtula
George K. Helmkamp, E. A. Helmkamp
2009-8-30
15549
Sutter
Sacramento Valley, along Nicolaus Ave., 2.2 miles northwest of the Placer Co. line, 4.4 miles ENE (86 deg. ) of Nicolaus
8
Comment
UCR45125
Euphorbia setiloba
George K. Helmkamp
1986-10-18
s.n.
San Bernardino
Sonoran (Colorado) Desert, Chemehuevi Wash, south of Lake Havasu Rd, 12.4 mi. SE of intersection w/ Hwy 95
274
Comment
CLARK-A1045-612
Eurotia lanata
George K. Helmkamp
1977-5-14
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
SEINET3260380
Eurybia integrifolia
George K. Helmkamp, E. A. Helmkamp
2008-8-8
14006
Alpine
Northern Sierra Nevada Mountains; along Blue Lake Road, 9.2 miles south of its junction with CA-88.
2512
Comment
UCR174195
Festuca arundinacea
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10330
Amador
Northern Sierra Nevada foothills, Grass Valley Creek, 1.2 miles east of Pine Grove along Calif. Hwy 88
762
Comment
UCR251244
Festuca arundinacea
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19357
El Dorado
Northern Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50
2078
Comment
UCR234013
Festuca idahoensis
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17655
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
SEINET3821903
Festuca microstachys
George K. Helmkamp, E. A. Helmkamp
2012-5-18
19001
El Dorado
Northern Sierra Nevada Mountains, junction of Bonnetti Road (Capps Crossing Rd.) and Mormon Emigrant Trail, east of Jenkinson Lake (Sly Park 7.5' Q)
1260
Comment
UCR187302
Festuca myuros var. hirsuta
George K. Helmkamp, E. A. Helmkamp
2007-4-5
11745
Amador
Foothills, Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City
309
Comment
UCR189482
Festuca myuros var. hirsuta
George K. Helmkamp, E. A. Helmkamp
2007-3-17
11638
Amador
Sacramento Valley/ Sierra Nevada Foothills, Hwy CA-24, 3.2 mi southwest of Plymouth near Tonzi Road
210
Comment
UCR253508
Festuca myuros var. hirsuta
George K. Helmkamp
2014-4-5
22654 A
Amador
Sierra Nevada Foothills, junction of Tonzi Road and CA-124, NE of Ione
201
Comment
UCR253581
Festuca myuros var. myuros
George K. Helmkamp, Amy Barnes
2014-4-7
22697
Sacramento
Sacramento Valley, along CA-104/Twin Cities Rd., 0.7 mile west of the Amador County line
63
Comment
SD237268
Festuca perennis
G. K. Helmkamp, E. A. Helmkamp
2009-6-29
15062
El Dorado
Sierra Nevada Mountains Foothills: Ice House Road, .2 miles north of its junction with CA-50, c. 7.3 miles ENE of Pollock Pines.
989
Comment
UCR231310
Festuca pratensis
George K. Helmkamp, E. A. Helmkamp
2011-5-26
17399
Nevada
Northern Sierra Nevada Mountains Foothills, southeast outskirts of of Grass Valley, Brunswick Road 0.2 mile northwest of the junction with Wood Rose Way
846
Comment
UCR173734
Festuca trachyphylla
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10670
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 6.1 miles north of Hwy US-50
1653
Comment
UCR15606
Filago gallica
George K. Helmkamp
1978-6-1
s.n.
Riverside
Santa Ana Mountains, Santa Rosa Plateau, vernal pool 7 mi [west] of Murrieta near the origin of DeLuz Creek
671
Comment
UCR190636
Foeniculum vulgare
George K. Helmkamp, E. A. Helmkamp
2007-7-23
12563
El Dorado
Northern Sierra Nevada Mountains Foothills, Rock Creek road, 7.1 miles east of its junction with CA-193
567
Comment
SD148080
Fragaria vesca
G. K. Helmkamp, E. A. Helmkamp
2000-4-21
5436
Monterey
Los Padres National Forest: Nacimiento Rd., 0.7 mi east of CA-1 (Nacimiento Rd. is about 12 mi north of Gorda)
548
Comment
UCD113238
Fragaria vesca
G. K. Helmkamp; E. A. Helmkamp
2007-5-31
12247
El Dorado
Northern Sierra Nevada Mountains: Forestry Route 42, 4.3 miles west of its junction with Wright's Lake Road, generally between Wright's Lake and Ice House Reservoir.
1753
Comment
UCR174290
Fragaria virginiana
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10722
El Dorado
Northern Sierra Nevada Mountains, 0.8 mile east of Ice House Road on the road to Wright's Lake
1672
Comment
UCD112776
Frangula californica subsp. tomentella
G. K. Helmkamp; E. A. Helmkamp
2007-9-19
12989
El Dorado
northern Sierra Nevada Mountains; junction of Lost Creek Road and French Creek Road just north of Frenchtown.
366
Comment
CLARK-A1045-818
Franseria eriocentra
George K. Helmkamp
1977-5-14
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
UCR122350
Frasera albicaulis
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6854
Plumas
Sierra Nevada Mountains, Calif. Hwy 89, ESE of Lake Almanor at Crescent Mills
976
Comment
UCR132166
Frasera puberulenta
George K. Helmkamp, E. A. Helmkamp
1993-7-28
179
Mono
Sierra Nevada Mountains, Long Valley along Owens Gorge Road about 5 mi north of Tom's Place
2256
Comment
SEINET3245836
Fraxinus latifolia
G. K. Helmkamp, E. A. Helmkamp
2009-1
15567
Sacramento
Sacramento Valley: along Nicolaus Ave., at the crossing over Coon Creek, just south of the junction with Warren Road, 1.1 mi SE (103 deg. ) of Towbridge.
14
Comment
RSA628848
Fremontodendron mexicanum
George K. Helmkamp, E. A. Helmkamp
1999-4-16
4670
San Diego
Cottonwood Creek Watershed; N of Barret Lake. Lyons Valley Rd 1.9 mi S of Japatul Valley Rd and ca 6 mi airline SSW of junction of CA-79 and I-8
716
Comment
UCR79310
Galium angustifolium
George K. Helmkamp
1993-9-12
22- 07
San Bernardino
San Bernardino Mtns, Burns Canyon, in the vicinity of Burns Spring
1524
Comment
UCR160754
Galium angustifolium subsp. angustifolium
George K. Helmkamp
2004-5-2
8558
Santa Barbara
Southern Central Coast, Santa Ynez Mountains, Canada del Refugio Rd., 5. mi N of US-101
488
Comment
UCD121685
Galium aparine
G. K. Helmkamp; E. A. Helmkamp
2007-3-10
11601
El Dorado
Northern Sierra Nevada Mountains Foothills: Rattlesnake Bar Rd, 3.0 miles southwest of CA-49, SW of Pilot Hill.
390
Comment
UCD121689
Galium aparine
G. K. Helmkamp; E. A. Helmkamp
2007-4-23
11801
Amador
Northern Sierra Nevada Mountains: junction of Tonzi Road and CA-124 about 7 miles north of Ione.
229
Comment
UCR140983
Galium aparine
George K. Helmkamp
2004-4-23
8514
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd, 12.9 mi from Hwy-Calif. Hwy 154 at San Olivos jct.
1159
Comment
UCR173164
Galium aparine
George K. Helmkamp, Elizabeth Helmkamp
2006-4-25
10220
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento and just SW of Placerville. Forni road between US Hwy 50 and Diamond Springs, at Weber Creek
488
Comment
UCR173777
Galium aparine
George K. Helmkamp, Elizabeth Helmkamp
2006-4-6
10145
Sutter
Sutter Buttes, N end of Great Valley, 5.6 miles WNW of Sutter along Pass Road on the S end of Sutter Buttes
69
Comment
UCR217908
Galium aparine
George K. Helmkamp, E. A. Helmkamp
2010-5-22
16079
El Dorado
Sierra Nevada Mountains Foothills, at the junction of Perry Creek Road and Slug Gulch Road, 0.5 mi. northeast of the village of Fairplay
677
Comment
UCR253574
Galium aparine
George K. Helmkamp, Amy Barnes
2014-4-23
22800
Placer
Sierra Nevada Mountains Foothills, Old Auburn-Foresthill Road, 1.7 miles northeast of its junction with CA-49 at North Fork American River
407
Comment
UCR256993
Galium aparine
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20580
Amador
Sierra Nevada Mountains, Fiddletown Road, c. 9 miles northeast of its junction with E-16/Shenandoah Rd. near Plymouth
665
Comment
SD146164
Galium bifolium
G. K. Helmkamp, E. A. Helmkamp, A. Kerchner
1999-6-29
5021 A
Placer
Northern Sierra Nevada Range: N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon
2134
Comment
UCR231007
Galium bolanderi
George K. Helmkamp, E. A. Helmkamp
2010-8-14
16799
Placer
Northern Sierra Nevada Mountains, American Hill Road, 1.2 miles south of its junction with Foresthill Road
1567
Comment
UCR233464
Galium bolanderi
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18205
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles south of its junction with US-50 in Kyburz
1447
Comment
UCR24977
Galium hallii
George K. Helmkamp
1981-8-6
s.n.
Kern
Lake-of-the-Woods, edge of the clearing at a trailer park
1646
Comment
CLARK-A1045-961
Galium nuttallii subsp. ovalifolium
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, 3 miles north of the Kern/Tulare County line; Kernville 7.5'Q
Comment
SEINET2441558
Galium porrigens
George K. Helmkamp
2009-8-12
15427
Placer
Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5' Q.).
1662
Comment
SD148076
Galium porrigens var. porrigens
G. K. Helmkamp, E. A. Helmkamp
2001-5-29
6706
San Benito
Gabilan Range: 7.1 mi S of San Juan Bautista on Hwy G-1
487
Comment
UCR197622
Galium porrigens var. tenue
George K. Helmkamp, E. A. Helmkamp
2008-5-29
13530
Calaveras
Sierra Nevada Mountains, along the north side of CA-4 (Ebbetts Pass Rd.) at Avery
1024
Comment
CLARK-A1045-136
Galium stellatum
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon rocky ledge of dry wash in Deep Canyon; Palm Desert 15'Q
Comment
UCR37717
Galium stellatum subsp. eremicum
George K. Helmkamp
1984-4-29
A- 14
San Bernardino
Little San Bernardino Mtns., Big Morongo Canyon near the Riverside Co. line, 2 mi. below the Big Morongo Preserve headquarters
701
Comment
SEINET3828539
Galium triflorum
George K. Helmkamp, E. A. Helmkamp
2011-1
18192
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, 0.9 miles south of its junction with US-50 in Kyburz (Kyburz 7.5')
1280
Comment
CLARK-A1045-710
Gaura coccinea
George K. Helmkamp
1978-5-6
San Bernardino
Mojave Desert Clark Mt 15'Q
Comment
CAS-BOT-BC227104
Gayophytum
George K. Helmkamp; William Barnes
2010-9-4
16928
El Dorado
Northern Sierra Nevada Mountains: Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
UCR241750
Gayophytum
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19924 A
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 1.2 miles north of CA-20, N of I-80 between Grass Valley and Truckee
1427
Comment
SEINET3285118
Gayophytum decipiens
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12537
Alpine
Northern Sierra Nevada Mountains; Blue Lake Road, about 9 miles south of its junction with CA-88.
2498
Comment
SD236345
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp, E. A. Helmkamp
2008-7-22
13859
Alpine
Eastern Sierra Nevada Mountains: Blude Lake Road just southeast of its junction with CA-88.
2180
Comment
UCD103622
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11040
El Dorado
Northern Sierra Nevada Mountains. 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd.
2226
Comment
UCD103624
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2006-8-11
11215
Placer
Northern Sierra Nevada Mtns; along Forest Hill Road, 8.7 miles northeast of Forest Hill.
1311
Comment
UCD103642
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10950
El Dorado
Northern Sierra Nevada Mtns. Mount Ralston Trail and Hwy US-50, about 0.9 mile south of Twin Bridges.
1959
Comment
UCD103652
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12520
Amador
Northern Sierra Nevada Mountains: along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake.
2316
Comment
UCD103680
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2007-9-26
13015
El Dorado
Northern Sierra Nevada Mountains: Bonetti Road, 1.1 miles south of its junction with Mormon Emigrant Trail, just east of Jenkinson Lake.
1189
Comment
UCR229447
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17894
Placer
Northern Sierra Nevada Mountains, Bowman Lake Road, 0.9 mile north of its junction with CA Hwy 20, 0.85 mi. NE (23 deg. ) of Emigrant Gap and N of I-80
1434
Comment
UCR251278
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19335
El Dorado
Northern Sierra Nevada Mountains, Ice House Road at Ice House village, 10.5 miles north of its junction with US-50
1677
Comment
UCD103540
Gayophytum heterozygum
G. K. Helmkamp; E. A. Helmkamp
2005-7-31
9740
El Dorado
Northern Sierra Nevada Foothills; 20 miles WSW of Lake Tahoe; Ice House Road, N of CA Highway 50 and 1.5 miles S of junction with Ice House Reservoir.
1637
Comment
UCD103552
Gayophytum heterozygum
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12791
El Dorado
Northern Sierra Nevada Mountains. Ice House Road at the junction to the lower campground and boat ramp of Loon Lake.
1976
Comment
UCR59474
Gayophytum nuttallii
George K. Helmkamp
1989-7-31
s.n.
Mono
Sierra Nevada Mtns, just south of Mammoth Village [in Mammoth Lakes] and at the edge of Snow Creek [Golf Course]
2439
Comment
UCR242313
Genista monspessulana
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17606
Amador
Northern Sierra Nevada Mountains Foothills, junction of CA-26 and Joyce Road, northwest of the Hwy 26 bridge over North Fork Mokelumne River, 0.78 mi. SSW (187 deg. ) of Pioneer
762
Comment
SD234881
Gentiana calycosa
G. K. Helmkamp, E. A. Helmkamp
2008-8-30
14044
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail 2.4 miles northwest of its junction with CA-88
2271
Comment
UCR122340
Gentianopsis holopetala
George K. Helmkamp, Elizabeth Helmkamp
2000-7-19
5901
Mono
Sierra Nevada Mountains, Rock Creek Lake Rd., 1.1 mi north of the Inyo County line
2896
Comment
CAS-BOT-BC228619
Geranium carolinianum
George K. Helmkamp; E. A. Helmkamp
2012-5-3
18904
El Dorado
Northern Sierra Nevada Mountains Foothills: unnamed road leading to power plant, 0.3 mile east of South Fork American River bridge
613
Comment
CLARK-A1045-59
Geranium carolinianum
George K. Helmkamp
1929-4-27
Riverside
Santa Ana Mountains Wildomar 7.5'Q
Comment
CDA36252
Geranium dissectum
G. K. Helmkamp, E. A. Helmkamp
2007-4-23
11794
Amador
Foothills, Northern Sierra Nevada Mountains; Along CA Hwy 124, 0.25 mile from its junction with Hwy 16.
Comment
SEINET4560742
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2011-1
17258
Placer
Southern Sacramento Valley: south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave.
41
Comment
UCR122605
Geranium dissectum
George K. Helmkamp
1995-12-23
120
San Luis Obispo
Central Coast, Pygmy Forest Preserve at the south end of Morro Bay, city of Baywood Park, South Bay Blvd
15
Comment
UCR237043
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2012-4-21
18814
Nevada
Northern Sierra Nevada Mountains Foothills, junction of Lime Kiln Road and Amberley Lane, 14.5 mi. NNW (345 deg. ) of Auburn
414
Comment
UCR91695
Geranium dissectum
George K. Helmkamp
1996-5-27
1092
San Luis Obispo
Central Coast, Los Osos, northeast of the corner of Martingale Avenue and Buckskin Drive
61
Comment
UCD103413
Geranium molle
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-6
10147
El Dorado
Northern Sierra Nevada Foothills; ENE of Sacramento, 4.2 miles NW of Coloma along CA-Hwy 49.
247
Comment
UCD103431
Geranium molle
G. K. Helmkamp; E. A. Helmkamp
2007-4-29
11874
El Dorado
Northern Sierra Nevada Mountains. Lake Oaks mobile home park, Diamond Springs.
524
Comment
UCR238573
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2012-3-31
18648
Placer
Sacramento Valley, along CA-193, 0.1 mile west of its junction with Sierra College Blvd.
88
Comment
UCR246404
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2012-3-22
18624
Amador
Northern Sierra Nevada Mountains Foothills, Rancho Cicada Retreat; private road, 1.1 miles north of Bell Road on east side of Middle Fork Cosumnes River
255
Comment
UCR257164
Geranium pusillum
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20616
Amador
Foothills, Northern Sierra Nevada Mountains, Stony Creek Road, 8.7 miles southwest of Jackson, 0.58 mi. NNE (07 deg. ) of Chrome Mountain
308
Comment
UCR121747
Geranium richardsonii
George K. Helmkamp, Elizabeth Helmkamp
2000-7-19
5906
Mono
Eastern Sierra Nevada Mountains, Rock Creek Lake Rd., 0.8 mi north of the Inyo Co. line
2896
Comment
UCR13898
Geum macrophyllum
George K. Helmkamp
1973-6-14
s.n.
Mono
Owens Valley, Owens River at and near Big Springs
2195
Comment
UCR130225
Gilia aliquanta subsp. breviloba
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4044
Los Angeles
Western Mojave Desert/Transverse Range, junction of Munz Ranch Rd and Lake Elizabeth Rd., north of Lake Elizabeth
1006
Comment
CLARK-A1045-890
Gilia austro-occidentalis
George K. Helmkamp
1978-4-18
#1; 22
San Bernardino
Mojave Desert 5 miles south of Barstow along State Highway 247; Barstow SE 7.5'Q
Comment
UCR121488
Gilia capillaris
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1999-6-29
5021 B
Placer
Northern Sierra Nevada Range, N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon
2134
Comment
UCR15926
Gilia capillaris
George K. Helmkamp
1979-6-22
s.n.
San Bernardino
San Bernardino Mtns., Along [3N16], where the fork to Burnt Flat turns NW
2287
Comment
UCR130256
Gilia capitata subsp. abrotanifolia
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6511
Kern
Tehachapi Mtns, Hart Flat turnoff from Calif. Hwy 58
884
Comment
SD260289
Gilia capitata subsp. mediomontana
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19136
Amador
Northern Sierra Nevada Mountains: Panther Creek Road, 1.5 miles south of its junction with CA-88, 5.0 mi. west (267a^z) of Bear River Reservoir dam.
1590
Comment
SEINET3860399
Gilia capitata subsp. mediomontana
George K. Helmkamp, Mary Alice Barnes; Mary Jane Ganibe
2010-7-6
16449
El Dorado
Sierra Nevada Mountains: Silver Fork Road, 1.9 miles south of its junction with US-50 in Kyburz.; 0
1473
Comment
SEINET11266298
Gilia capitata subsp. pedemontana
George Helmkamp, E. A. Helmkamp
2011-6-17
17594
Calaveras
Northern Sierra Nevada Mountains Foothills: along CA-26, 0.1 mile south of the Amador County line at the bridge over the North Fork Mokelumne River, 1.77 mi SE (1221/4) of Pioneer (West Point 7.5' Q.); 0
652
Comment
UCR89993
Gilia filiformis
George K. Helmkamp
1995-3-24
s.n.
San Bernardino
Eastern Mojave Desert, 1.6 miles west of Hwy 127, at point 0.9 mile north of Baker
350
Comment
UCR14506
Gilia hutchinsifolia
George K. Helmkamp
1974-5-4
s.n.
Inyo
Owens Valley, Owens River, Pleasant Valley
1372
Comment
UCR30084
Gilia latifolia
George K. Helmkamp
1983-4-5
483- 41
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
UCR170795
Gilia leptalea
George K. Helmkamp, E. A. Helmkamp
2005-8-9
9794
El Dorado
Northern Sierra Nevada Foothills, El Dorado National Forest; WSW of Lake Tahoe; 7.4 miles N of Union Reservoir along Ice House Road at the junction of Cheese Camp Road
1765
Comment
SEINET11262538
Gilia leptalea subsp. bicolor
George Helmkamp, E. A. Helmkamp
2010-9-1
16893
El Dorado
Northern Sierra Nevada Mountains. Mehrten Springs Road, .6 mile north of its junction with CA-88 (Peddler Hill 7.5' Q.).; 0
2018
Comment
UCR197355
Gilia leptalea subsp. bicolor
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13715
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 0.1 mile south of its junction with CA-88, between Mormon Emigrant Trail and Hamms Station
2076
Comment
UCR206753
Gilia leptalea subsp. bicolor
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15103
El Dorado
Sierra Nevada Mountains, Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR232162
Gilia leptalea subsp. bicolor
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16697
Calaveras
Northern Sierra Nevada Mountains, along CA-4, 0.8 mile southwest of the junction with Forest Route 7N23/ Black Creek Rd., NE of Dorrington
1854
Comment
UCR242347
Gilia leptalea subsp. bicolor
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16813
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road 0.6 mile west of Mormon Emigrant Trail in the Leek Spring area
2232
Comment
UCR252800
Gilia leptalea subsp. bicolor
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22092
Alpine
Northern Sierra Nevada Mountains, along CA-88, Carson Pass Hwy, 1.6 miles east of the Caples Lake dam
2486
Comment
RSA781310
Gilia leptalea subsp. leptalea
George K. Helmkamp, E. A. Helmkamp
2009-7-22
15267
El Dorado
Wrights Lake Road, 1.2 miles south of Wrights Lake
2073
Comment
SEINET3246124
Gilia leptalea subsp. leptalea
G. K. Helmkamp, E. A. Helmkamp
2007-1
12664
Nevada
Northern Sierra Nevada Mountains: near Camp Spaulding; along Lake Spaulding Road 0.4 mile north of its junction with CA-20.
1573
Comment
UCR103596
Gilia maculata
George K. Helmkamp
1997-2-26
1309
Riverside
Sonoran (Colorado) Desert, Coachella Valley, about 200 yards SE of the jct of Calif. Hwy 62 & Indian Ave. in the NW end of the Valley
488
Comment
SD143739
Gilia malior
G. K. Helmkamp, E. A. Helmkamp
1998-4-9
3286
Kern
West end of city of Mojave, along Airport Blvd.
808
Comment
UCR93401
Gilia micromeria
George K. Helmkamp
1993-4-24
s.n.
San Bernardino
Eastern Mojave Desert, south side of Kelso sand dunes
701
Comment
UCR102115
Gilia stellata
George K. Helmkamp
1984-4-29
A 43
San Bernardino
Little San Bernardino Mtns., Big Morongo Canyon near the Riverside Co. line, 2 mi. below the Big Morongo Preserve headquarters
701
Comment
UCR158431
Gilia tenuiflora subsp. tenuiflora
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9412
San Luis Obispo
Inner South Coast Ranges, Carrizo Highway at Mile-32, Calif. Hwy 58, east of Santa Margarita, beside Windmill Creek
509
Comment
UCR222993
Gilia tricolor
George K. Helmkamp, E. A. Helmkamp
2010-4-24
15940
El Dorado
Sierra Nevada Mountains Foothills, Oak Ridge Road just east of its junction with Blend-O-Green Way, jct. is north of Green Valley Road
390
Comment
RSA752650
Gilia tricolor subsp. tricolor
George K. Helmkamp, E. A. Helmkamp
2008-4-11
13262
Calaveras
along Fricot City Road, 1.3 miles east of its junction with Calaveritas road
424
Comment
SD241129
Gilia tricolor subsp. tricolor
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15835
San Joaquin
Northeast San Joaquin Valley: along CA-88, 1.1 miles southwest of the Amador County line, 6 miles NE (33a^z) of Clements (Goose Creek 7.5'Q)
78
Comment
UCR209008
Glyceria elata
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15508
El Dorado
Sierra Nevada Mountains, Wright's Lake Road, 8.6 miles north of its upper junction with Ice House Road
1785
Comment
CLARK-A1045-1138
Glyceria striata
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCR104785
Gnaphalium californicum
George K. Helmkamp
1997-3-8
1462
San Luis Obispo
Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd.
107
Comment
UCR161100
Gnaphalium californicum
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9645
San Luis Obispo
South Central Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 6.7 miles east of Santa Margarita
485
Comment
UCR190206
Gnaphalium californicum
George K. Helmkamp, E. A. Helmkamp
2007-7-23
12579
El Dorado
Northern Sierra Nevada Mountains Foothills, along Hwy CA-193, 1.0 mile south of Georgetown
771
Comment
UCR179392
Gnaphalium canescens subsp. beneolens
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11433
El Dorado
Northern Sierra Nevada Mountains Foothills, West Meadow Road 0.3 mile west of its junction with Ice House Road
1050
Comment
UCR189208
Gnaphalium canescens subsp. thermale
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12936
El Dorado
Northern Sierra Nevada Mountains, along Hwy US-50 at Echo Summit
2256
Comment
SD247326
Gnaphalium palustre
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19905
Placer
Northern Sierra Nevada Mountains: Blue Canyon Road, 1.1 miles south of its intersection with I-80, about 1/2 mile south of Blue Canyon-Nyack Airport.
1473
Comment
UCR176532
Gnaphalium palustre
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11227
Nevada
Northern Sierra Nevada Mtns, just south of I-80 on Lake Valley Rd
1755
Comment
UCR134688
Gnaphalium stramineum
George K. Helmkamp
2003-9-19
8158
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
UCR140126
Gnaphalium stramineum
George K. Helmkamp
2004-3-13
8346
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR169944
Gnaphalium stramineum
George K. Helmkamp, E. A. Helmkamp
2004-6-20
08683
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Sudden Rd west of Sudden Peak and 1.2 mi SW of Miquelito Rd (SW of Lompoc)
412
Comment
SEINET3260405
Grindelia hirsutula var. davyi
George K. Helmkamp, E. A. Helmkamp
2008-9-22
14154
Alpine
Northern Sierra Nevada Mountains; along CA-89. 0.1 mile north of Markleeville.
1686
Comment
UCR190150
Grindelia hirsutula var. davyi
George K. Helmkamp, E. A. Helmkamp
2007-7-23
12573
El Dorado
Northern Sierra Nevada Mountains Foothills, along Hwy CA-193, 1.0 mile south of Georgetown
771
Comment
UCR218246
Grindelia hirsutula var. davyi
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-2
16432
Placer
Sierra Nevada Mountains Foothills, Yankee Jims Road on the east side of Yankee Jims Bridge over the North Fork American River, 5 mi. SE (146 deg. ) of Colfax
282
Comment
UCR219182
Grindelia nana
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16364
Amador
Sierra Nevada Mountains Foothills, Rams Horn Grade, 1.8 rd. miles northeast of Volcano at the junction with Sutter Creek Road
730
Comment
CHSC118008
Grindelia squarrosa var. serrulata
G. K Helmkamp; E. A Helmkamp
2008-8-20
14015
Placer
Northern Sierra Nevada Mountains: Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River.
1811
Comment
RSA750432
Grindelia squarrosa var. serrulata
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14015
Placer
Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River
1811
Comment
UCR131862
Grindelia stricta var. platyphylla
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5746
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
RSA613939
Guillenia lasiophylla
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1404
San Luis Obispo
Carrizo Plain. 30.1 mi. NW of CA-166 on Soda Lake Rd; at San Diego Crk Rd and edge of Soda Lake.
701
Comment
UCR79302
Gutierrezia microcephala
George K. Helmkamp
1993-9-12
23- 20
San Bernardino
San Bernardino Mtns., edge of Burns Canyon
1375
Comment
CLARK-A1045-1118
Habenaria sparsiflora
George K. Helmkamp
1977-9-1
V
Alpine
Sierra Nevada sphagnum bog; ; Freel Peak 7.5'Q
2346
Comment
UCR176503
Hackelia
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11118
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
SBBG128844
Hackelia micrantha
G. K. Helmkamp, E. A. Helmkamp
2010-8-7
16717
El Dorado
Silver Fork Rd, 0.4 mi E of its jct with Mormon Emigrant Trail, at Jim Quinn Spring
2136
Comment
CLARK-A1045-907
Haplopappus cuneatus
George K. Helmkamp
1977-3-24
San Diego
Cleveland Mountains south of Bucksnort Mountains; rocky edge of wash; ; Warner Springs 7.5'Q
1371
Comment
UCR234560
Hazardia whitneyi var. whitneyi
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18148
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 2.6 miles north of its junction with Tamarack Road
2436
Comment
UCD132740
Helenium bigelovii
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12802
El Dorado
Northern Sierra Nevada Mountains. Unnamed lake at the junction of Angel Creek and Gerle Creek, 0.5 mile west of Wentworth Springs Road.
1598
Comment
UCR123548
Heliotropium curassavicum
George K. Helmkamp, Elizabeth Helmkamp
1999-11-10
5335 A
San Luis Obispo
Central Coast, Atascadero State Beach, 1.2 mi NNW of the junction of Calif. Hwy 1 and Calif. Hwy 41
6
Comment
UC2044610
Hemizonella minima
George K. Helmkamp with E. A. Helmkamp
2011-5-24
17365
El Dorado
Northern Sierra Nevada Mountains Foothills Mesquite Road, 7.5 miles south of its junction with Wentworth Springs Road. (Slate Mountain 7.5' Q.)
Comment
UCR201780
Hemizonia congesta subsp. calyculata
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14222
Sutter
Sacramento Valley, Pass Road on the south side of Sutter Buttes, 6.9 miles west of Sutter
84
Comment
UCD132981
Hemizonia congesta subsp. congesta
G. K. Helmkamp; E. A. Helmkamp
2006-10-30
11578
El Dorado
Northern Sierra Nevada Mountains Foothills: along Pleasant Valley Road, 1.1 miles west of El Dorado.
476
Comment
UCR132012
Hemizonia increscens subsp. increscens
George K. Helmkamp
2003-10-24
8215
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UCR161462
Hemizonia pentactis
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9644
San Luis Obispo
South Central Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 6.7 miles east of Santa Margarita
485
Comment
UCR122194
Hemizonia pungens subsp. pungens
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7558
Fresno
Central Valley; San Joaquin Valley, along CA Hwy 180, 10.8 mi west of CA Hwy 145
107
Comment
UCR233343
Heracleum maximum
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18255
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.6 miles southeast of Jenkinson's Lake, between Silver Fork Road and Hwy 88, 0.2 mi. NNE (23 deg. ) of Alder Hill
2274
Comment
UCR250616
Hesperolinon micranthum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20890
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 8.3 miles east of its junction with Hwy E-16 at Jenkinsons Lake
1456
Comment
CLARK-A1045-1309
Heterocodon rariflorum
George K. Helmkamp
1979-6-6
Riverside
Wolf Valley Highway S16 south of Murrieta (road to Pala), mile 5; Pechanga 7.5'Q
Comment
UCD113316
Heteromeles arbutifolia
G. K. Helmkamp; E. A. Helmkamp
2006-12-7
11583
El Dorado
Northern Sierra Nevada Mountains: Rock Creek Road, 1.2 mi. east of CA-193, northeast of the South Fork of American River at Chili Bar.
399
Comment
UCR219142
Heteromeles arbutifolia
George K. Helmkamp, E. A. Helmkamp
2009-9-29
15657
El Dorado
Sierra Nevada Mountains Foothills, Canyon Valley Rd. in the east end of Diamond Springs, c. 0.1 mile SE of Pleasant Valley Road
567
Comment
SEINET1005020
Heterotheca grandiflora
G. K. Helmkamp, E. A. Helmkamp
2006-1
11484
Calaveras
Northern Sierra Nevada Mountains Foothills: along Hwy CA- 26, 0.8 mi east of CA-49 in the vicinity of Mokulumne Hill.
488
Comment
SEINET11261446
Heterotheca grandiflora
George Helmkamp, E. A. Helmkamp
2011-11-20
18469
El Dorado
Northern Sierra Nevada Mountains Foothills: Salmon Falls Road, 1.9 miles northeast of the bridge over the American River.; 0
192
Comment
RSA795039
Heuchera micrantha
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17523
Nevada
Tyler Foote Crossing Road, 3.3 miles north of its junction with Grizzly Hill Road, NE of North Columbia near the Sierra Co. line/Middle Yuba River
878
Comment
UCR230983
Heuchera micrantha
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17544
Sierra
Northern Sierra Nevada Mountains Foothills, 5.9 miles north of Camptonville along CA-49, about 1.2 miles northeast of the Yuba Co. line
899
Comment
UC2015610
Hieracium albiflorum
G. Helmkamp
1995-9-21
1 -1
Mono
Lake Mary
Comment
UCR146838
Hieracium argutum
George K. Helmkamp, E. A. Helmkamp
2004-9-29
8811
Santa Barbara
Santa Ynez Mountains, Stagecoach Road at junction with Calif. Hwy 154, SE of Lake Cachuma
561
Comment
UCR123912
Hieracium bolanderi
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6923
Tehama
Sierra Nevada Mountains, Calif. Hwy 36, 2.6 mi west of Mineral, about 33 mi west of Chester, Lake Almanor
1418
Comment
UCR134298
Hoffmannseggia glauca
George K. Helmkamp, E. A. Helmkamp
1999-9-24
5290
San Bernardino
Southern Mojave Desert, Dale Dry Lake, 1.8 mi north of Calif. Hwy 62
351
Comment
UCR121583
Holcus lanatus
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4984
San Mateo
Pescadero Creek Watershed, Pescadero Road just north of Loma Mar
107
Comment
UCR91835
Holcus lanatus
George K. Helmkamp
1996-5-27
1095
San Luis Obispo
Central Coast, west side of San Luis Obispo, south-facing slope of Bishop Peak
280
Comment
UCD133236
Holocarpha virgata
G. K. Helmkamp; E. A. Helmkamp
2006-10-23
11555
Sacramento
Sacramento Valley: Along Latrobe Road, 0.1 mile west of the El Dorado County line, about 3.5 miles southwest of Latrobe.
137
Comment
CHSC118017
Holocarpha virgata subsp. virgata
G. K Helmkamp; E. A Helmkamp
2007-9-17
12981
El Dorado
Foothills, northern Sierra Nevada Mountains along Greenstone Road just south of its junction with US-50 (east of Shingle Springs)
427
Comment
JEPS119430
Holocarpha virgata subsp. virgata
G. K. Helmkamp, E. A. Helmkamp
2011-11-19
18460
Sacramento
Eastern Sacramento Valley, White Rock Road, 0.2 mile west of its junction with Placerville Road, 5.5 mi. SE (130 deg. ) of Folsom
Comment
UCR201722
Holocarpha virgata subsp. virgata
George K. Helmkamp, E. A. Helmkamp
2008-10-23
14274
Amador
San Joaquin Valley, 0.3 mile north of the gated entrance to the North Shore Residence area of Comanche Reservoir
76
Comment
UCR158618
Holodiscus discolor
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8670
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
RSA519144
Holodiscus microphyllus
George K. Helmkamp
1990-8-2
s.n.
Mono
Between Mammoth and Lake Mary.
2591
Comment
SEINET13203104
Hordeum murinum subsp. glaucum
George K. Helmkamp, Amy Barnes
2014-1
22597
Sutter
Sacramento Valley: aling CA-20 (Colusa Hwy), 1.3 miles west of its junction with Acacia Ave., 1.7 air mi. SW of Sutter (Sutter Buttes 7.5' Q.)
13
Comment
UCR257162
Hordeum murinum subsp. glaucum
George K. Helmkamp
2014-4-17
22744
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-120, 2.3 miles west of its junction with CA-49 in Grass Valley
729
Comment
SEINET3828566
Hordeum murinum subsp. leporinum
George K. Helmkamp, E. A. Helmkamp
2012-1
18785
Yolo
Sacramento Valley: along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland.
65
Comment
UCR201541
Horkelia californica
George K. Helmkamp, E. A. Helmkamp
2008-9-28
14165
Amador
Foothills, northern Sierra Nevada Mountains, Sutter Creek Rancho Road on the north side of CA-88 and 4.2 miles southwest of the junction of CA-88 and CA-49
287
Comment
UCD113477
Horkelia fusca var. parviflora
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10949
El Dorado
Northern Sierra Nevada Mtns: Mount Ralston Trail and Hwy US-50, about 0.9 mile south of Twin Bridges.
1960
Comment
CAS-BOT-BC143988
Horkelia fusca var. tenella
G. K. Helmkamp; Elizabeth Helmkamp
2001-7-7
6861
Plumas
Sierra Nevada Mountains: CA-89, 2.3 mi SSE of its junction with CA-26 (Lake Almanor Region)
1357
Comment
RSA567557
Horkelia rydbergii
George K. Helmkamp
1993-9-22
36 -5
San Bernardino
16.4 miles up Burns canyon from junction of Pipes Canyon and Pioneer Town Roads.
2195
Comment
UCD113572
Horkelia tridentata var. tridentata
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12061
Placer
Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville.
Comment
UCD113574
Horkelia tridentata var. tridentata
G. K. Helmkamp; E. A. Helmkamp, Amy Barnes
2007-6-20
12364
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail, 13.2 miles ESE of its junction with Sly Park Road at Jenkinson Lake.
1976
Comment
SEINET15325662
Hosackia oblongifolia
G. K. Helmkamp, E. A. Helmkamp
2012-1
19350
El Dorado
Northern Sierra Nevadad Mountains: Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-502078
2078
Comment
CLARK-A1045-443
Hymenopappus filifolius var. lugens
George K. Helmkamp
1979-6-3
San Bernardino
San Bernardino Mountains 2 miles east of fawnskin; dry slope under pines, beside Lake; Fawnskin 7.5'Q
Comment
SEINET238558
Hymenopappus filifolius var. lugens
George K. Helmkamp
1998-6-27
4122
Riverside
Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring.
1799
Comment
UCD110337
Hypericum anagalloides
G. K. Helmkamp; E. A. Helmkamp
2007-6-20
12411
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail, 2.0 miles west of its junction with Hwy CA-88 and at Shingleton Springs.
2247
Comment
UCR111003
Hypericum anagalloides
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5108
Placer
Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes.
2104
Comment
UCR170799
Hypericum formosum var. scouleri
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9937
Placer
Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove)
1805
Comment
UCR123379
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5054
Placer
Sierra Nevada Foothills, corner of Dry Creek Rd & Bowman Rd, near Nielsburg, 3 mi NE of Auburn beside I-80 & 1.5 NW of North Fork Lake on American River
457
Comment
UCR176412
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11153
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 16.7 miles east of its junction with Sly Park Road
1944
Comment
UCR190193
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2007-7-23
12584
El Dorado
Foothills, northern Sierra Nevada Mountains, Traverse Creek Road at the crossing of Traverse Creek; about 2 miles southeast of its junction with CA-193
732
Comment
UCR215921
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15074
El Dorado
Sierra Nevada Mountains, Ice House Road, 7.6 miles north of its junction with CA-50, c. 10.5 air miles NE (74 deg. ) of Pollock Pines
1642
Comment
UCR249165
Hypericum perforatum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20796
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.9 miles NE of the Yuba County line, NE of Camptonville
796
Comment
RSA0035674
Hypochaeris glabra
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20464
Placer
SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road
974
Comment
SEINET272171
Hypochaeris glabra
G. K. Helmkamp, E. A. Helmkamp
1997-4-24
1659
Orange
Cleveland National Forest ; Cleveland National Forest 1.6 mi. SE of Ortega Hwy (CA-74) on Rd. 7-S14. UTM 10km cell: MH-5E 1N. San Juan Hot Spring
549
Comment
UCD133340
Hypochaeris glabra
G. K. Helmkamp; E. A. Helmkamp
2007-4-20
11754
El Dorado
Northern Sierra Nevada Mountains; junction of French Creek Road and Lost Creek Road, just north of Frenchtown.
366
Comment
UCR173484
Hypochaeris glabra
George K. Helmkamp, Elizabeth Helmkamp
2006-4-29
10261
El Dorado
Northern Sierra Nevada Foothills, Rock Creek Road, 0.9 mi. east of Calif. Hwy 193 along the S Fork of the American River
415
Comment
UCR187077
Hypochaeris glabra
George K. Helmkamp, E. A. Helmkamp
2007-5-5
11938
El Dorado
Foothills, Northern Sierra Nevada Mountains, along CA-49, 3.7 miles northwest of Placerville
549
Comment
SEINET273101
Hypochaeris radicata
G. K. Helmkamp, E. A. Helmkamp; A. Kerchner
1997-6-26
2160
Mendocino
Fort Bragg; Glass Beach.
6
Comment
UCR176240
Ipomopsis aggregata subsp. formosissima
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10847
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
UCR233460
Ipomopsis aggregata subsp. formosissima
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18180
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat
2050
Comment
UCR218206
Iris hartwegii subsp. columbiana
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16199
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, about 8 miles east of the village of Sutter Creek
457
Comment
UCR232214
Iris hartwegii subsp. hartwegii
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17488
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
UCR253572
Iris hartwegii subsp. hartwegii
George K. Helmkamp, Amy Barnes
2014-4-23
22798
Placer
Sierra Nevada Mountains Foothills, Old Auburn-Foresthill Road, 1.7 miles northeast of its junction with CA-49 at North Fork American River
407
Comment
UCD60415
Iris hartwegii subsp. pinetorum
G. K. Helmkamp; E. A. Helmkamp
2007-5-9
11988
El Dorado
Northern Sierra Nevada Mountains: White Meadow Road, 0.6 mile west of its junction with Ice House Road, c. 0.75 mile NNW of Riverton.
1082
Comment
UCR184801
Isopyrum stipitatum
George K. Helmkamp, E. A. Helmkamp
2007-5-9
11973
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 3.2 miles north of Ice House, near Jones Place
1515
Comment
UCR95900
Ivesia kingii var. kingii
George K. Helmkamp
1996-10-17
1261
Mono
Eastern Sierra/Mono Basin Region, Ecological Preserve at the east end of River Springs Lakes
1951
Comment Read comments May 24 2013
CAS-BOT-BC142794
Ivesia lycopodioides subsp. megalopetala
G. K. Helmkamp; E. A. Helmkamp
1998-8-12
4370
Inyo
Eastern High Sierra Mountains: Rock Crk Valley, 1.0 mi S of Rock Creek Lake
3108
Comment
UCR219140
Juglans californica var. hindsii
George K. Helmkamp, E. A. Helmkamp
2009-9-17
15630
El Dorado
Sierra Nevada Mountains Foothills, Pleasant Valley Road (CA-49) in Diamond Springs at the junction with Patterson Drive
541
Comment
RSA781381
Juncus
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13768
El Dorado
Tragedy Spring Road, 8.0 miles southwest of Kirkwood and 0.1 mile north of its junction with CA-88
2421
Comment
UCR215780
Juncus
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15353
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR245584
Juncus acuminatus
George K. Helmkamp, Amy Barnes
2013-9-24
22348
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
UCR134711
Juncus balticus
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4279
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR173691
Juncus balticus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10321
Amador
Northern Sierra Nevada foothills, Climax Road southwest of Pine Grove, 0.1 mile west of Calif. Hwy 88
701
Comment
CLARK-A1045-475
Juncus bufonius
George K. Helmkamp
1979-6-5
#1
San Bernardino
San Bernardino Mountains between the north end of the Lake and State Highway 38; grassy seep; Big Bear City 7.5'Q
Comment
SEINET271518
Juncus bufonius
G. Helmkamp
1994-5-18
91 -1
San Luis Obispo
Alamo Cyn 7 mi E of US-101 on CA-166m then 4 mi N (generally NE of Twitchell Reservoir).
213
Comment
SEINET3815512
Juncus bufonius var. bufonius
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18996
Calaveras
Northern Sierra Nevada Mountain Foothills: at a crossing of Murray Creek along Murray Creek Road; 1.8 miles E of Pope Road in San Andreas
351
Comment
UCR173657
Juncus bufonius var. bufonius
George K. Helmkamp, Elizabeth Helmkamp
2006-5-1
10286
El Dorado
Northern Sierra Nevada foothills, corner of Pleasant Valley Road and Patterson Drive; west end of Diamond Springs
537
Comment
UCD141440
Juncus chlorocephalus
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11088
El Dorado
Northern Sierra Nevada Mountains: along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Hwy US-50.
1864
Comment
UCR121465
Juncus chlorocephalus
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5082
Nevada
Northern Sierra Nevada Range, Tahoe Nat. Forest, Donner Pass Rd. (=Hwy 40), 2.2 mi. west of Lake Donner.
1997
Comment
UCR170429
Juncus effusus
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10034
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, N of Union Valley Reservoir]; Wentworth Springs Road, 5.9 [road] mi east of Uncle Toms Cabin
1567
Comment
UCR171039
Juncus effusus
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9722
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
UCR174196
Juncus effusus var. exiguus
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10801
Calaveras
Northern Sierra Nevada foothills, along Calif. Hwy 26, 0.2 mile north of West Point
838
Comment
UCR190182
Juncus effusus var. pacificus
George K. Helmkamp, E. A. Helmkamp
2007-8-21
12787
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 21.3 miles north of CA-50 at Robbs Hut Road
2078
Comment
UCR177876
Juncus ensifolius
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11197
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring; Tragedy Spring Road, 0.3 mile north of Calif. Hwy 88
2424
Comment
UCR91803
Juncus falcatus var. falcatus
George K. Helmkamp
1996-5-27
1096
San Luis Obispo
Central Coast, Los Osos, northeast of the corner of Martingale Avenue and Buckskin Drive
61
Comment
UCR201733
Juncus macrandrus
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13933
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 3.8 miles north of its junction with CA-50
2076
Comment
UCR257657
Juncus mexicanus
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19457
Sierra
Northern Sierra Nevada Mountains, Henness Pass Road, 1.1 mile east of its junction with CA-89 at the north end of Kyburz Flat
1907
Comment
UCR176046
Juncus orthophyllus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11008
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
UCR241319
Juncus oxymeris
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19876
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy E-26 (Red Corral/West Point-Pioneer Rd.) just north of the bridge over the North Fork Mokelumne River
613
Comment
UCR253597
Juncus oxymeris
George K. Helmkamp, Elizabeth Helmkamp
2012-11-5
20119
Amador
Sierra Nevada Mountains Foothills, Along CA-26 on the north side of the bridge over the North Fork Mokelumne River
628
Comment
UCR91690
Juncus phaeocephalus var. phaeocephalus
George K. Helmkamp
1996-5-24
1036
San Luis Obispo
Central Coast, Baywood Park/Los Osos, state park system, north of Turri Road and 1.5 miles east of South Bay Blvd
94
Comment
UCR206717
Juncus saximontanus
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15204
Placer
Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill
1704
Comment
UCR229542
Juncus tenuis
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17866
Nevada
Northern Sierra Nevada Mountains, along CA Hwy 20, 0.8 mi. east of Bowman Lake Road, 1.23 mi. NE (50 deg. ) of Emigrant Gap and 0.35 mi. N of I-80
1541
Comment
UCR188019
Keckiella breviflora subsp. breviflora
George K. Helmkamp, E. A. Helmkamp
2007-5-5
11930
El Dorado
Foothills, Northern Sierra Nevada Mountains, along CA-49, 3.7 miles northwest of Placerville
549
Comment
UCR193339
Keckiella breviflora subsp. breviflora
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12177
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill
588
Comment
CAS-BOT-BC235618
Keckiella breviflora var. breviflora
G. K. Helmkamp; E. A. Helmkamp
2009-6-29
15059
El Dorado
Sierra Nevada Mountains Foothills: Ice House Road, 0.2 miles north of its junction with CA-50, c. 73 miles ENE (83 deg. ) of Pollock Pines
989
Comment
UCR158748
Keckiella cordifolia
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8664
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR249170
Keckiella lemmonii
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20788
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.8 miles west of Goodyears Bar, c. 5 miles west of Downieville
779
Comment
RSA0053705
Kelloggia galioides
G. K. Helmkamp, E. A. Helmkamp
2012-6-19
19223
Placer
Northern Sierra Nevada Mountains: Devil's Thumb Road (Deadwood Rd.), 1.2 miles S of its junction with Foresthill Road
1648
Comment
UCR233042
Kelloggia galioides
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18320
El Dorado
Northern Sierra Nevada Mountains, Loon Lake [Ice House] Road, 2.7 miles NNE of its junction with Wentworth Springs Road
1884
Comment
UCR242807
Kelloggia galioides
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16898
El Dorado
Northern Sierra Nevada Mountains, Mehrten Springs Road, 0.6 mile north of its junction wtih CA-88
2018
Comment
SD234524
Kickxia elatine
G. K. Helmkamp, E. A. Helmkamp
2007-9-19
12987
El Dorado
Foothills, northern Sierra Nevada Mountains: junction of Lost Creek Road and French Creek Road just north of Frenchtown.
366
Comment
UCR14876
Kickxia elatine
George K. Helmkamp
1975-7-27
s.n.
San Luis Obispo
Central Coast, one-half mile south of Cambria
30
Comment
UCR219171
Kickxia elatine
George K. Helmkamp, E. A. Helmkamp
2009-9-22
15636
Amador
Sierra Nevada Mountains Foothills, junction of Shenandoah Road (CA-16) and Steiner Road, southwest of River Pines
750
Comment
SEINET3245869
Lactuca serriola
G. K. Helmkamp, E. A. Helmkamp
2009-1
15562
Sutter
Sacramento Valley: along Nicolaus Ave. 2.2 miles northwest of the Placer Co. line, 4.4 miles ENE (86 deg. ) of Nicolaus.
8
Comment
UCR209014
Lagophylla ramosissima subsp. ramosissima
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15515
El Dorado
Sierra Nevada Mountains Foothills, junction of Meadowbrook and Bear Creek roads at Traverse Creek, south of Georgetown
674
Comment
UCR206691
Lamium amplexicaule
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14323
Colusa
Sacramento Valley, Jameson Road 1.3 miles north of its junction with Lurline Road and south of Harbison Road, generally west of the city of Colusa
16
Comment
UCR237589
Lamium amplexicaule
George K. Helmkamp, E. A. Helmkamp
2012-3-9
18616
Yolo
Sacramento Valley, County Road 16, 2.1 miles east of its junction with County Road 102; at the area where the road turns sharply north, c. 4 miles NE of Woodland
17
Comment
UCR253565
Lamium amplexicaule
George K. Helmkamp
2014-4-5
22667
Amador
Sierra Nevada Foothills, junction of Tonzi Road and CA-124, NE of Ione
201
Comment
UCR103334
Langloisia setosissima subsp. punctata
George K. Helmkamp
1998-3-30
3029
San Bernardino
Mojave Desert, vicinity of Twentynine Palms; Encelia Ave., 1.0 mi. north of Calif. Hwy 62
793
Comment
RSA785393
Lapsana communis
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16343
Amador
Sutter Creek Road, 7.2 miles northeast of its junction with old CA-49 in Sutter Creek village
473
Comment
UCR232607
Lapsana communis
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18423
El Dorado
Northern Sierra Nevada Mountains, Pony Express Trail, 0.9 mile east of Sly Park Road in Pollock Pines
1220
Comment
UCR89566
Larrea tridentata
George K. Helmkamp
1994-3-8
41 16
Riverside
Western Colorado Desert, SW-facing slope at the junction of [Date] Palm Dr. and Varner Rd., below Edom Hill, 'Indio Hills
152
Comment
SD254538
Lasthenia californica
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20230
Calaveras
Northern Sierra Nevada foothills: Along CA-26 at the juncton with Shelton Road, southwest of Valley Springs, NE of Linden (Valley Springs SW 7.5'Q)
203
Comment
RSA614976
Lasthenia gracilis
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3241
San Luis Obispo
Soda Lake Rd at Arrowbear Trail (vic. of California Valley, ca. 5 mi. NW of Soda Lake)
610
Comment
SEINET3246050
Lasthenia gracilis
G. K. Helmkamp, E. A. Helmkamp
2007-1
11686
El Dorado
Foothills, Northern Sierra Nevada Mountains: hills bordering the east end of Sacramento Valley; Bass Lake Road at the southeast end of Bass Lake.
381
Comment
UCR129525
Lasthenia gracilis
George K. Helmkamp, E. A. Helmkamp
1998-5-20
4025
Ventura
Transverse Range; Mt. Pinos Region, San Emigdio Mountains, Lockwood Valley Rd., 1.7 mi SW of its junction with Cuddy Valley Rd. at Lake of the Woods
1738
Comment
UCR91692
Lasthenia gracilis
George K. Helmkamp
1996-5-25
1065
San Luis Obispo
Central Coast, between CA Hwy 1 and the ocean, 1.5 miles north of Piedras Blancas lighthouse near the northern border of the county
15
Comment
UCD133882
Lasthenia platycarpha
G. K. Helmkamp; E. A. Helmkamp
2007-3-17
11650
Calaveras
Eastern Sacramento Valley; about 1 mile north of Burson on the road to south Comanche Reservoir.
152
Comment
UCD133884
Lasthenia platycarpha
G. K. Helmkamp; E. A. Helmkamp
2007-4-5
11739
Sacramento
Eastern Sacramento Valley; along Hwy CA-104, 5.6 miles west of Ione.
66
Comment
UCR197498
Lasthenia platycarpha
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13216
Calaveras
San Joaquin Valley / Sierra Nevada Mountains Foothills, 1.8 miles north of Burson via Burson Rd., at the junction of Comanche Parkway South and Pattison Way
122
Comment
UCR249563
Lasthenia platycarpha
George K. Helmkamp
2013-3-14
20185
Calaveras
San Joaquin Valley/Sierra Nevada Foothills, Jenny Lind Road (County Road J14) 0.1 mile north of its junction with Kirby Road, 24 mi. NE of Stockton
91
Comment
UCR106459
Lathyrus latifolius
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2159
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
UCR159329
Lathyrus latifolius
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8733
Santa Barbara
Central Coast, Along Calif. Hwy 1, 0.2 mi south of Brown Rd (S of Guadelupe)
46
Comment
UCR171326
Lathyrus latifolius
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9681
El Dorado
Northern Sierra Nevada Foothills, 30 miles SW of Lake Tahoe; 1 mile east of Jenkinson Lake along Mormon Emigrant Road/County Highway 5
1220
Comment
SD241007
Lathyrus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2012-5-11
18954
Placer
Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road.
1041
Comment
CLARK-A1045-1303
Lathyrus splendens
George K. Helmkamp
1978-3-25
San Diego
Cleveland Mountains east of Barrett; Cameron Corners 7.5'Q
Comment
UCD106443
Lathyrus sulphureus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-20
10510
El Dorado
Northern Sierra Nevada Foothills: ca. 5 air mi off CA Hwy 193, E of Georgetown; 1.7 mi. N of Wentworth Springs Road on Bottlehill Road (junction just E of Balderson Station).
973
Comment
UCR173717
Lathyrus sulphureus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-20
10510
El Dorado
Northern Sierra Nevada Foothills, c. 5 air mi off Calif. Hwy 193, east of Georgetown; 1.7 mi. N of Wentworth Springs Road on Bottlehill Road (junction just east of Balderson Station)
973
Comment
SEINET238557
Lathyrus vestitus
George K. Helmkamp
1998-6-27
4119
Riverside
Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring.
1799
Comment
UCR130636
Lathyrus vestitus subsp. alefeldii
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4657 a
San Diego
Peninsular Ranges, c. 5 mi NE of Alpine. Old Viejas Grade at the E side of Viejas Mtn., 0.6 mi east of the Viejas Indian Reservation
854
Comment
UCR161226
Lathyrus vestitus var. vestitus
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9006
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness north of Lake Lopez, Upper Lopez Canyon Road, 7.2 mi north of jct with Lopez Road and at Water End Road
174
Comment
JEPS119407
Layia platyglossa
G. K. Helmkamp, E. A. Helmkamp
2009-1-31
14314
Colusa
Sacramento Valley, junction of Moon Bend Road and CA-20 at the south end of the city of Colusa.
Comment
UCR159306
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9390
San Luis Obispo
Inner South Coast Ranges, Carrizo Hwy at Mile-19 (Calif. Hwy 58, east of Santa Margarita near Wilson Corner)
470
Comment
UCR91813
Layia platyglossa
George K. Helmkamp
1996-5-25
1054
San Luis Obispo
Central Coast, between CA Hwy 1 and the ocean, 1.5 miles north of Piedras Blancas lighthouse near the northern border of the county
15
Comment
SEINET3123950
Leontodon taraxacoides
George K. Helmkamp, Amy Barnes
2010-5-7
16968
Calaveras
Sierra nevada Mountains, Foothills along CA-49, 0.4 miles north of its junction with Ca-12, vicinity of San Andreas
230
Comment
UCR235299
Leontodon taraxacoides
George K. Helmkamp, E. A. Helmkamp
2011-11-17
18454
El Dorado
Southeastern Sacramento Valley, 1.6 miles west of Latrobe on South Shingle Road
194
Comment
UCR237568
Leontodon taraxacoides
George K. Helmkamp, E. A. Helmkamp
2012-2-17
18550
Sacramento
Sacramento Valley, along Scott Road, 2.67 miles south of its junction with White Rock Road, south of Folsom Lake and Hwy 50
76
Comment
UCR241981
Leontodon taraxacoides
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19789
Amador
Northern Sierra Nevada Mountains Foothills, along CA-49 in Plymouth; 0.1 mile south of its junction with Fiddletown Rd./Plymouth-Shenandoah Rd.
303
Comment
UCR170357
Leontodon taraxacoides subsp. taraxacoides
George K. Helmkamp, Elizabeth Helmkamp
2005-9-12
9855
El Dorado
Northern Sierra Nevada Foothills, east of Sacramento; Sly Park Road (County Highway E-16), c. 2 mi east of Pleasant Valley
854
Comment
UCR249963
Leontodon taraxacoides subsp. taraxacoides
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20228
San Joaquin
East end of San Joaquin Valley, Escalon Bellota Road (J6), 6.1 miles south of its junction with CA-26, 0.52 mi. S of Copperopolis Rd.
52
Comment
UCR197805
Lepidium campestre
George K. Helmkamp, E. A. Helmkamp
2008-5-20
13459
Yuba
Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek
466
Comment
UCR206927
Lepidium campestre
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14956
Shasta
Southern Cascade Mountains, McCumber Lake Road, at the south end of McCumber Lake and 3.3 miles northeast of its junction with CA-44
1099
Comment
UCR103317
Lepidium lasiocarpum
George K. Helmkamp
1998-2-5
2640
Riverside
Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd.
335
Comment
UCR132051
Lepidium latifolium
George K. Helmkamp
2003-7-31
8068
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR101027
Lepidium nitidum var. nitidum
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3232
San Luis Obispo
Soda Lake Rd, 6.6 mi. NW of jct with Calif. hwy 33 (roughly west of Maricopa).
671
Comment
UCR184388
Lepidium nitidum var. nitidum
George K. Helmkamp, E. A. Helmkamp
2007-3-14
11636
Sacramento
Sacramento Valley near the edge of Sierra Nevada Mountains foothills, Latrobe Rd about 5.7 miles west of Latrobe and 1.5 miles west of the El Dorado Co. line
110
Comment
CLARK-A1045-488
Lepidium perfoliatum
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains north edge of Baldwin Lake; sagebrush scrub; ; Big Bear City 7.5'Q
2133
Comment
UCR237300
Lepidium strictum
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18748
Butte
Northern Sacramento Valley, Robinsons Corner, Simpson Rd, just east of junction of East Gridley Road and CA-70
23
Comment
UCR257703
Lepidium virginicum var. pubescens
George K. Helmkamp, Amy Barnes
2012-8-12
19632
Alpine
Northern Sierra Nevada Mountains, north side of CA-88/Carson Pass Hwy, 0.4 mile east of its junction with Kirkwood Meadows Drive
2357
Comment
UCR229544
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17864
Placer
Northern Sierra Nevada Mountains, Emigrant Gap Road, 0.1 mile west of its junction with US-80, 0.65 mi. NE (65 deg. ) of Emigrant Gap
1590
Comment
UCR230653
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17852
Calaveras
Northern Sierra Nevada Mountains Foothills, CA Hwy 4, 4.2 miles northeast of Arnold
1221
Comment
UCR237094
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19403
Amador
Northern Sierra Nevada Mountains, edge of Martin Meadow along CA-88 (Carson Pass Hwy), 2.2 miles north of Silver Lake
2317
Comment
UCR140061
Leptodactylon californicum
George K. Helmkamp
2004-4-14
8421
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR87840
Lesquerella occidentalis
George K. Helmkamp, E. A. Helmkamp
1995-6-23
95- 8 -10
Alpine
Sierra Nevada Mtns., Monitor Pass, along Calif. Hwy 89
2530
Comment
IRVC28940
Lessingia filaginifolia var. filaginifolia
G. K. Helmkamp
2003-9-10
8138
San Luis Obispo
0.6 mi S of Nipomo Hill in Arroyo Grande area Central Coast
46
Comment
UCR134376
Lessingia filaginifolia var. filaginifolia
George K. Helmkamp
2003-9-26
8172
San Luis Obispo
Central Coast, SW edge of Oceano; border of sand dune recreation area
6
Comment
UCR67024
Lessingia filaginifolia var. filaginifolia
George K. Helmkamp
1990-9-5
s.n.
Monterey
Central Coast, 2 miles north of Gorda
46
Comment
UCR95902
Lessingia glandulifera var. peirsonii
George K. Helmkamp
1996-10-17
1259 A
Mono
Owens Valley, 0.2 mi. south of Benton Hot Springs, beside Calif. Hwy 120
1745
Comment
CAS-BOT-BC226949
Lessingia leptoclada
George K. Helmkamp; E. A. Helmkamp
2011-7-30
17914
El Dorado
Northern Sierra Nevada Mountains: Omo Ranch Road at the junction with North-South Road, 0.67 mi. NW (300 deg. ) of jct. with Hwy 88; 8.9 miles southeast of Omo Ranch
1457
Comment
SBBG129099
Lessingia leptoclada
G. K. Helmkamp, A. Barnes
2013-9-24
22379
Tuolumne
Boards Crossing of the N Fork of the Stanislaus River
1244
Comment
SBBG133754
Lessingia leptoclada
G. K. Helmkamp, E. A. Helmkamp
2011-7-30
17914
El Dorado
Omo Ranch Rd at the jct with N-S Rd, 0.67 mi NW (300 deg) of jct with Hwy 88, 8.9 mi SE of Omo Ranch
1457
Comment
SEINET2441560
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2009-8-8
15419
El Dorado
Sierra Nevada Mountains Foothills: Lake Foreboy, 0.8 mile northwest of Pollock Pines on Forebay Road (Pollock Pines 7.5' Q.).
1195
Comment
SEINET4560544
Lessingia leptoclada
George K. Helmkamp, Amy Barnes
2013-1
22379
Tuolumne
Northern Sierra Nevada Mountains: Boards Crossing of the North Fork of the Stanislaus River.
Comment
UCR182297
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2006-10-8
11497
Calaveras
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 26 at the West Branch of the Mokulumne River, about 15 miles west of Calif. Hwy 49
710
Comment
UCR229578
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17914
El Dorado
Northern Sierra Nevada Mountains, Omo Ranch Road at the junction with North-South Road, 0.67 mi. NW (300 deg. ) of jct. with Hwy 88; 8.9 miles southeast of Omo Ranch
1457
Comment
UCR240699
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2012-9-1
19746
Calaveras
Northern Sierra Nevada Mountains Foothills, along Winton Road, 0.3 mile east of its junction with Lily Gap Road, 6.4 miles NE (66 deg. ) of West Point
1314
Comment
UCR248425
Lessingia leptoclada
George K. Helmkamp, Elizabeth Helmkamp
2013-9-13
22293
Amador
Northern Sierra Nevada Mountains Foothills, Fiddletown Road, 0.4 mile west of its junction with Shake Ridge Road
977
Comment
UCR114378
Leucanthemum vulgare
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5831
Mono
Sierra Nevada Mountains, South Twin Lake along Lake Mary Road, 3 miles SW of Mammoth Lakes
2561
Comment
CLARK-A1045-441
Lewisia rediviva subsp. minor
George K. Helmkamp
1979-6-5
#5
San Bernardino
San Bernardino Mountains 1.5 miles east of Fawnskin; dry slope under pines; ; Fawnskin 7.5'Q
2133
Comment
UCR129556
Leymus cinereus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6815
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
RSA747380
Ligusticum grayi
George K. Helmkamp, Mary Barnes, Amy Barnes
2008-7-28
13921
El Dorado
Northern Sierra Nevada Mountains: Dark Lake, beside Wrights Lake Road 0.4 mile northwest of the entrance to Wrights Lake
2134
Comment
SD236162
Ligusticum grayi
G. K. Helmkamp, E. A. Helmkamp
2008-7-16
13805
Alpine
Northern Sierra Nevada Mountains: Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR176414
Ligusticum grayi
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11069
El Dorado
Northern Sierra Nevada Mountains, along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Hwy US-50
1864
Comment
UCR176029
Lilium parvum
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10964
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
UCR198489
Limnanthes alba subsp. alba
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13379
Amador
Sierra Nevada Mountains, Barton, c. 15 miles (air) NE of Jackson, at the junction of Tiger Creek Road and Black Prince Road, 0.6 mil east of the junction of Tiger Creek Road with CA-88
936
Comment
UCR250301
Limnanthes alba subsp. alba
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20224
Stanislaus
Eastern San Joaquin Valley, along CA-4, 1.5 miles east of the San Joaquin County line, 12.5 mi. WSW (259 deg. ) of Copperopolis
70
Comment
RSA0115717
Limnanthes montana
George K. Helmkamp
2013-4-30
20442
El Dorado
Sierra Nevada Mountains Foothills: Pleasant Valley Road, 0.4 mile northwest of Pleasant Valley.
753
Comment
UCR257717
Limnanthes montana
George K. Helmkamp
2013-4-30
20442
El Dorado
Sierra Nevada Mountains Foothills, Pleasant Valley Road, 0.4 mile northwest of Pleasant Valley
753
Comment
UCR132010
Limonium sinuatum
George K. Helmkamp
2003-10-8
8211
San Luis Obispo
Central Coast, base of Nipomo Mesa 0.25 mi SW of Halcyon Rd along an unnamed road near the railroad crossing
15
Comment
CLARK-A1045-168
Linanthus androsaceus
George K. Helmkamp
1979-4-27
Riverside
Santa Ana Mountains Wildomar 7.5' Q
Comment
UCR185235
Linanthus bicolor
George K. Helmkamp, E. A. Helmkamp
2007-4-20
11771
El Dorado
Foothills, Northern Sierra Nevada Mountains, junction of Uhlenkamp Road and Pine Hill Road, north of Grass Valley Road and northwest of Placerville
401
Comment
RSA795035
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17958
Amador
Ellis Road, 2.1 miles south of its junction with CA-88
1794
Comment
UCR197633
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13623
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 0.1 mile south of its junction with CA-88, jct. is 4.0 miles east of Cook's Station
1652
Comment
UCR206931
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14969
Shasta
Southern Cascade Range, Long Hay Flat Road, 0.1 mile south of CA-44, junction is 8.6 miles east of Shingletown
1276
Comment
UCR218080
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16504
El Dorado
Northern Sierra Nevada Mountains, Light Canyon Road, 0.1 mile north of its junction with Mormon Emigrant Trail (Iron Mountain Rd.), 20.5 mi. ESE (99 deg. ) of Placerville
1831
Comment
UCR233103A
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17735
Calaveras
Northern Sierra Nevada Mountains, Winton Road (Forest Route 7N03), 14.4 miles east of its junction with CA-26 in West Point
1590
Comment
UCR240939
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19287
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 8.0 miles south of its junction with CA-88, along East Panther Creek
1345
Comment
UCR15018
Linanthus ciliatus var. ciliatus
George K. Helmkamp
1976-6-22
s.n.
Mono
Sierra Nevada Mtns, Mammoth Lakes
2409
Comment
UCR129961
Linanthus liniflorus
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5545
Monterey
Outer south coast ranges., Nacimiento Road, 10.4 mi west of Mission Road, just south of Mission San Antonio
457
Comment
UCR124025
Linanthus parryae
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6660
Los Angeles
Western Mojave Desert, Antelope Valley, 0.1 mi west of Calif. Hwy 138 on Ave. W, then 0.3 mi S on [180th St. East] dirt road
976
Comment
UCR118250
Linanthus parviflorus
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5520
Monterey
Los Padres National Forest, Nacimiento Rd. (starts about 12 mi north of Gorda), 10.2 mi east of Calif. Hwy 1; at Sherlock Creek
595
Comment
RSA0012080
Linum bienne
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17208
Yuba
junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg ) of Wheatland.
56
Comment
UCR176009
Linum lewisii var. alpicola
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11025
El Dorado
Northern Sierra Nevada Mtns, North Truckee River Rd., 1.4 miles north of Calif. Hwy 50 and c. 6 miles south of Lake Tahoe
2009
Comment
UCR217912
Lithophragma parviflorum
George K. Helmkamp, E. A. Helmkamp
2010-5-22
16082
El Dorado
Sierra Nevada Mountains Foothills, at the junction of Perry Creek Road and Slug Gulch Road, 0.5 mi. northeast of the village of Fairplay
677
Comment
UCR87509
Lithophragma parviflorum
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
16.1 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR235505
Lolium multiflorum
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18966
Calaveras
Northern Sierra Nevada Mountains Foothills, along Murray Creek Road (Murraydale Ln.), 1.4 miles east of Pope Road in San Andreas
387
Comment
UCD66242
Lolium multiflorum var. multiflorum
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-6
10128
Placer
Northern Sierra Nevada Foothills: NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin.
122
Comment
UCR134375
Lolium perenne
George K. Helmkamp
2003-9-26
8182
San Luis Obispo
Central Coast, SW edge of Oceano; border of sand dune recreation area
6
Comment
UCR215910
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15062
El Dorado
Sierra Nevada Mountains Foothills, Ice House Road, 0.2 miles north of its junction with CA-50, c. 7.3 miles ENE (83 deg. ) of Pollock Pines
989
Comment
UCR235380
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2012-4-17
18768
Yolo
Sacramento Valley, along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland
65
Comment
UCR238420
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2012-4-4
18712
Calaveras
Northern San Joaquin Valley, along CA-26, 0.1 mile west of its junction with Milton Road, between Linden & Valley Springs
67
Comment
SEINET273050
Lomatium utriculatum
G. K. Helmkamp, E. A. Helmkamp
1998-5-14
3652
Monterey
Along CA Hwy 198 6.2 mi W of the King/Monterey County lines
503
Comment
UCR140977
Lomatium utriculatum
George K. Helmkamp
2004-4-23
8520
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd, 12.9 mi from Hwy-Calif. Hwy 154 at San Olivos jct.
1159
Comment
UCR233667
Lomatium utriculatum
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17504
Nevada
Northern Sierra Nevada Mountains Foothills, Tyler Foote Crossing Road, 3.0 miles north of its junction with Grizzly Hill Road, generally north of North Columbia
884
Comment
UCR234191
Lonicera hispidula
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17651
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
UCR219011
Lonicera hispidula var. vacillans
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16339
Amador
Sierra Nevada Mountains Foothills, Sutter Creek Road, 7.2 miles northeast of its junction with old CA-49 in Sutter Creek village
473
Comment
UCR134443
Lonicera involucrata var. ledebourii
George K. Helmkamp
2003-9-26
8174
San Luis Obispo
Central Coast, SW edge of Oceano; border of sand dune recreation area
6
Comment
UCR176284
Lotus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10412
Nevada
Northern Sierra Nevada Foothills, along Calif. Hwy 49, 2.1 mi. N of the South Yuba River bridge
534
Comment
UCR249169
Lotus argophyllus var. fremontii
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20789
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.8 miles west of Goodyears Bar, c. 5 miles west of Downieville
779
Comment
UCR170796
Lotus corniculatus
George K. Helmkamp, E. A. Helmkamp
2005-8-14
9815
El Dorado
Northern Sierra Nevada Foothills, Diamond Springs. Lake Oaks mobile home park
521
Comment
UCR230617
Lotus crassifolius var. crassifolius
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17845
Calaveras
Northern Sierra Nevada Mountains, Forest Route 5N75, 1.1 miles west of Boards Crossing bridge over North Fork Stanislaus River
1220
Comment
UCR207900
Lotus denticulatus
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14584
Placer
Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake
732
Comment
UCR79305
Lotus heermannii
George K. Helmkamp
1993-9-12
22- 09
San Bernardino
San Bernardino Mtns, Burns Canyon, in the vicinity of Burns Spring
1524
Comment
UCR140488
Lotus humistratus
George K. Helmkamp
2004-4-23
8535
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd., 15.0 mi NE of Los Olivos
1341
Comment
UCR14938
Lotus nevadensis
George K. Helmkamp
1975-10-4
s.n.
Mariposa
Beside Big Creek, below bridge in Fish Camp
1520
Comment
RSA755838
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2009-8-6
15403 -A
Amador
Panther Creek Road, 0.4 mile south of its junction with CA-88; jct. is 4.0 miles NE of Cooks Station
1590
Comment
RSA795036
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17960
Amador
Ellis Road, 2.1 miles south of its junction with CA-88
1794
Comment
UCR176061
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11255
Nevada
Northern Sierra Nevada Mtns, about 0.7 mile east of Donner Pass along Donner Pass Road
2041
Comment
UCR216045
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15056
El Dorado
Sierra Nevada Mountains Foothills, Ice House Road, 0.2 miles north of its junction with CA-50, c. 7.3 miles ENE (83 deg. ) of Pollock Pines
989
Comment
CLARK-A1045-1009
Lotus oblongifolius
George K. Helmkamp
1978-5-27
Inyo
Owens Valley Inyo [Sawmill] Campground; wet area beside Creek; Aberdeen 7.5' Q
Comment
SEINET4178670
Lotus oblongifolius
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16907
Amador
Northern Sierra Nevada Mountains: Dufrene Road 0.7 mile east of it's junction with CA-88, north of Lower Bear River Reservoir. Peddler Hill 7.5' Quad
2044
Comment
UCR232237
Lotus oblongifolius
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16709
Calaveras
Northern Sierra Nevada Mountains, Forest Route 7N23 (Black Creek Road) 0.1 mile north of the junction with CA-4
2005
Comment
UCR235143
Lotus oblongifolius
George K. Helmkamp, William Barnes
2010-9-4
16922
El Dorado
Northern Sierra Nevada Mountains, Mehrten Spring Rd and continuing on Cat Creek Rd., 4.7 miles northwest of CA-88; Middle Fork of Cosumnes River
1620
Comment
RSA792065
Lotus oblongifolius var. oblongifolius
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19311
Amador
Northern Sierra Nevada Mountains: Bear River Road, 0.1 miles east of the south end of the dam of Lower Bear River Reservoir.
1776
Comment
UCR173987
Lotus oblongifolius var. oblongifolius
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10769
El Dorado
Northern Sierra Nevada Mountains, about 1.3 miles north of Hwy US-50 on Wrights Lake Road
1677
Comment
RSA756852
Lotus pinnatus
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15210
Placer
Forest Hill Road, 24.6 miles northeast of the city of Foresthill, near Ford Point
1698
Comment
UCR134434
Lotus procumbens var. procumbens
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6562
San Luis Obispo
South Coast Range, Irish Hills, Clark Valley Road, 2.8 miles south of Los Osos Valley Road, east of Los Osos
91
Comment
RSA755426
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14980
Shasta
Road 300, a side road without an official road sign, at the north side of CA-44; 9.7 miles east of Shingletown
1261
Comment
RSA769902
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2009-8-28
15536
Sacramento
along Latrobe Road, 1.1 miles west of the El Dorado County line, 3 mi. NE (36 deg ) of Rancho Murieta
140
Comment
UCR115801
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2000-10-17
6223
San Diego
Peninsular Range, Lawrence Welk Commercial Complex, c. 1.5 miles west of the Oat Hills, and south of Moosa Canyon
299
Comment
UCR160570
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2005-6-7
9551
San Luis Obispo
Outer South Coast Ranges, along Arroyo Grande to Huasna Road [beyond Huasna], 2.1 miles ENE of Huasna Township Road
253
Comment
UCR170459
Lotus purshianus var. purshianus
George K. Helmkamp, Elizabeth Helmkamp
2005-10-29
10007
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, 3 air mi N of Placerville]; 1.9 [road] mi east of Calif. Highway 193 along Rock Creek Road
381
Comment
UCR201941
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14201
Yuba
Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst
24
Comment
UCR233303
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18212
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 4.7 miles south of its junction with US-50 in Kyburz, alongside Silver Fork American River
1500
Comment
UCR233390
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18170
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 0.4 miles west of Robinson Flat
2041
Comment
UCR257214
Lotus purshianus var. purshianus
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20624
Calaveras
Northern Sierra Nevada Mountains Foothills, Poloma Road at its junction with Cosgrove Creek Road, 3 miles NE (30 deg. ) of Valley Springs
279
Comment
UCR121867
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
2001-3-24
6299
San Bernardino
Southcentral Mojave Desert, 0.3 mile west of CA Hwy 247 on Pipes Canyon Road
1037
Comment
UCR130054
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4050
Los Angeles
Western Mojave Desert/Transverse Range, junction of Munz Ranch Rd and Lake Elizabeth Rd., north of Lake Elizabeth
1006
Comment
UCR140129
Lotus strigosus
George K. Helmkamp
2004-3-13
8357
San Luis Obispo
Central Coast, Nipomo Mesa, along Calif. Hwy 1 (Mesa View Dr.), 0.4 mi south of Halcyon Rd, south of Arroyo Grande
76
Comment
UCR107371
Lotus wrangelianus
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3643
Monterey
Coast Range, Peachtree Valley, along Calif. Hwy 198, 6.2 mi. west of the Fresno/Monterey County lines.
503
Comment
SD257316
Ludwigia hexapetala
George K. Helmkamp, Mary Alice Barnes
2013-5-8
20524
Yolo
Southern Sacramento Valley: Yolo Bypass Wildlife Area, 0.9 mile southeast of the junction of Chiles Road and I-80, between Sacramento and Davis. (Davis 7.5'Q)
13
Comment
UCR143567
Lupinus
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5846
Mono
Sierra Nevada Mtns., W side of Lake Mary, SW of Mammoth Lakes
2720
Comment
UCR130383
Lupinus albifrons
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4030
Kern
Western Mojave Desert, South base, Tehachapi Mtns., 4.0 mi north of Calif. Hwy 138 (Lancaster Rd) on 300th St. West
1006
Comment
UCR161229
Lupinus albifrons var. albifrons
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9036
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness N of Lopez Lake, Upper Lopez Canyon Road, 5.5 mi N of jct with Lopez Road
335
Comment
UCR161894
Lupinus albifrons var. albifrons
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9171
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 8.2 mi. NE of Los Olivos
488
Comment
UCR173703
Lupinus albifrons var. albifrons
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10574
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road just north of Hwy US-50
1665
Comment
UCR158386
Lupinus albifrons var. collinus
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8679
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR207885
Lupinus albifrons var. collinus
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14580
Placer
Sierra Nevada Mountains Foothills, Forest Hill road near Grizzly Bear House, about one mile northeast of the road to the lower end of Clementine Lake
732
Comment
UCR217914
Lupinus albifrons var. collinus
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16469
El Dorado
Sierra Nevada Mountains, Silver Fork Road, 4.1 miles south of its junction with US-50 in Kyburz
1500
Comment
UCR116695
Lupinus andersonii
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Calif. Hwy 38 near Heart Bar State Park
1982
Comment
UCR175778
Lupinus angustiflorus
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10869
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
UCD106581
Lupinus apertus
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10906
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 6.1 miles north of Hwy US-50 at the junction with the road from Ice House Reservoir.
2030
Comment
UCR122384
Lupinus arboreus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6999
Humboldt
North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay
6
Comment
UCR159325
Lupinus arboreus
George K. Helmkamp, E. A. Helmkamp
2004-7-14
8765
Santa Barbara
Southern Central Coast, Surf, NW of Lompoc
46
Comment
UCR242373
Lupinus arbustus
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16673
Placer
Northern Sierra Nevada Mountains, Soda Springs Road, 0.3 mile north of its junction with Forest Hill Road at Robinson Flat
2024
Comment
UCD106793
Lupinus argenteus var. argenteus
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11151
Alpine
Northern Sierra Nevada Mountains; Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake.
2509
Comment
UCR123966
Lupinus argenteus var. argenteus
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6845
Alpine
Sierra Nevada Mountains, Calif. Hwy 89, 7.1 mi west of US-395
2470
Comment
UCR122320
Lupinus argenteus var. heteranthus
George K. Helmkamp, E. A. Helmkamp
1997-9-10
2324
Mono
Eastern Sierra Nevada Mtns./ Mono Basin, 4.9 mi. SE of Calif. Hwy 120 on Sagehen Meadows Road
2591
Comment
UC2015621
Lupinus argenteus var. meionanthus
G. Helmkamp
1995-9-23
3 -10
Alpine
West side of Sonora Pass just beyond the Mono County line.
Comment
RSA794937
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17115
Placer
along CA-193 (Lincoln-New Castle Hwy), 0.4 mile west of Gold Hill Road, 5.4 miles (air) east of Lincoln
108
Comment
SD241011
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2012-3-31
18668
Placer
Northern Sierra Nevada Mountains Foothills: Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing.
257
Comment
UCD107025
Lupinus benthamii
G. K. Helmkamp; E. A. Helmkamp
2007-4-5
11740
Amador
Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City.
309
Comment
UCD107026
Lupinus benthamii
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11827
Amador
Northern Sierra Nevada Mountains: along CA E-16, 0.7 mile south of River Pines.
610
Comment
UCR130229
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6532
Kern
Tehachapi Mtns., Western Foothills, Calif. Hwy 223 (Bear Mtn. Blvd.), 7.2 mi east of Arvin
366
Comment
UCR207654
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14520
El Dorado
Sierra Nevada Mountains Foothills, junction of Rock Creek Road and CA-193, north of Chili Bar and the South Fork of the American River
390
Comment
UCR208276
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14644
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill
476
Comment
UCR249887
Lupinus benthamii
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20645
Calaveras
Northern Sierra Nevada Mountains Foothills, Along CA Hwy 26, 0.4 mile northeast of its junction with Campo Seco Turnpike Road, SW of Mokelumne Hill
438
Comment
SEINET3258016
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13376
Amador
Sierra Nevada Mountains; Barton, c. 15 miles (air) NE of Jackson, at the junction of Tiger Creek Road and Black Prince Road, 0.6 mil east of the junction of Tiger Creek Road with CA-88.
936
Comment
SEINET3271563
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14383
Colusa
Sacramento Valley; on the south side of CA-20 just west of the junction with Freshwater Road, northwest edge of Williams
49
Comment
UCD107240
Lupinus bicolor
G. K. Helmkamp
2004-3-15
8375
San Luis Obispo
San Luis Obispo County: Central Coast; edge of Nipomo Mesa overlooking Cienaga Valley, along CA-1 (Mesa View Dr.), 0.3 mile north of Halcyon Road.
76
Comment
UCD107242
Lupinus bicolor
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-9
10357
Amador
Northern Sierra Nevada Foothills: Along CA Hwy 88, 0.9 mi. S of the El Dorado County line at Enterprise.
274
Comment
UCD107250
Lupinus bicolor
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11843
Calaveras
Northern Sierra Nevada Mountains: Chili Gulch near McSorley Ranch, along Hwy. CA-49, 5.1 miles south of the Amador County line.
370
Comment
UCR140155
Lupinus bicolor
George K. Helmkamp
2004-3-13
8339
San Luis Obispo
Central Coast, Nipomo Mesa, SE of Oceano, Mesa Dunes Mobile Home Park, along Mesa View Dr., 0.2 mi south of the jct of Halcyon Rd
76
Comment
UCR158737
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9367
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UCR173598
Lupinus bicolor
George K. Helmkamp, Elizabeth Helmkamp
2006-5-4
10294
El Dorado
Northern Sierra Nevada Mountains Foothills, east end of Diamond Springs, 0.1 mile north of the junction of Pleasant Valley Road and Calif. Hwy 49
543
Comment
UCR188016
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2007-5-1
11923
El Dorado
Foothills, Northern Sierra Nevada Mountains, along Hwy CA-49 at the junction with Teal Road, 3.0 miles northwest of US-50 in Placerville
558
Comment
UCR189493
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2007-3-22
11675
El Dorado
Foothills, Northern Sierra Nevada Mountains, along Hwy CA-16 at the west slope of Mt. Aukum and 1.7 miles north of Mt. Aukum village
584
Comment
UCR194908
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12131
Yuba
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville
802
Comment
UCR253610
Lupinus bicolor
George K. Helmkamp
2014-3-18
22571
San Joaquin
San Joaquin Valley, along Hwy CA-88 on the southwest side of the border with Calaveras County, 7.1 mi. SW (220 deg. ) of Ione
87
Comment
UCR257212
Lupinus bicolor
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20563
Amador
Sierra Nevada Mountains Foothills, along E-16/Shenandoah Rd., 3.6 road miles south of River Pines, 4.15 air miles NE (39 deg. ) of Plymouth
517
Comment
UCR258986
Lupinus bicolor
George K. Helmkamp, Amy Barnes
2014-3-21
22617
Sutter
Sacramento Valley, 2.8 miles WSW (257 deg. ) of Sutter, along CA-20 at the junction with Morehead Rd.
11
Comment
UCR132065
Lupinus chamissonis
George K. Helmkamp
2003-7-29
8043 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR110938
Lupinus concinnus
George K. Helmkamp
1998-6-27
4097
Riverside
Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring
1585
Comment
UCR122811
Lupinus concinnus
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6332
San Bernardino
Eastern Mojave Desert, Goffs Rd, 8.1 mi east of Goffs
610
Comment
UCR190595
Lupinus concinnus
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9400
San Luis Obispo
Inner South Coast Ranges, Carrizo Highway at Mile-32, Calif. Hwy 58, east of Santa Margarita, beside Windmill Creek
509
Comment
UCD107798
Lupinus fulcratus
G. K. Helmkamp; E. A. Helmkamp
2006-8-24
11270
El Dorado
Northern Sierra Nevada Mountains: Ice House Road, 2.3 miles south of Union Reservoir Road.
1552
Comment
UCR176026
Lupinus fulcratus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11033
El Dorado
Northern Sierra Nevada Mtns, 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd
2226
Comment
UCR110991
Lupinus hyacinthinus
George K. Helmkamp
1998-6-27
4124
Riverside
Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring.
2232
Comment
UCR163007
Lupinus latifolius subsp. latifolius
George K. Helmkamp, E. A. Helmkamp
2005-4-6
9317
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains; San Miguelito Road at mile 3.7, SSW of Lompoc
221
Comment
UCR115562
Lupinus latifolius subsp. parishii
George K. Helmkamp, E. A. Helmkamp
2000-4-20
5389
San Luis Obispo
Central Coast, Prefumo Cyn., 1.2 mi south of Los Osos Valley Rd.
183
Comment
RSA756760
Lupinus latifolius var. columbianus
George K. Helmkamp, Amy Barnes
2009-7-8
15139
El Dorado
Wrights Lake Road, 0.4 mile east of its junction with Ice House Road, about 1.3 miles north of Ice House
1654
Comment
SEINET6655409
Lupinus latifolius var. columbianus
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12119
Nevada
Northern Sierra Nevada Mountains Foothills: along CA-49; 1.2 miles north of North San Juan.; 0
1000
Comment
UCR209028
Lupinus latifolius var. columbianus
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15494
El Dorado
Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 21.6 miles north of CA-50
1716
Comment
SD236289
Lupinus lepidus var. confertus
G. K. Helmkamp, E. A. Helmkamp
2008-7-22
13855
Alpine
Eastern Sierra Nevada Mountains: Blue Lake Road just southeast of its junction with CA-88.
2180
Comment
SD254617
Lupinus lepidus var. confertus
George K. Helmkamp, Amy Barnes
2014-8-27
23030
Alpine
Northern Sierra Nevada Mountains; West Fork Carson River canyon along CA 88/Carson Pass Hwy, 2.6 miles east of the junction with Hwy 89/Luther Pass Rd.
1994
Comment
UCR176055
Lupinus lepidus var. confertus
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10963
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
UCR188478
Lupinus lepidus var. confertus
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12526
Amador
Northern Sierra Nevada Mountains, along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake
2317
Comment
UCD108576
Lupinus lepidus var. sellulus
G. K. Helmkamp; E. A. Helmkamp
2007-8-9
12716
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake; south side of the lake at the entrance to the campground.
2131
Comment
UCR176049
Lupinus lepidus var. sellulus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11012
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
UCR218104
Lupinus lepidus var. sellulus
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16618
El Dorado
Northern Sierra Nevada Mountains, Forestry Route 42, 0.2 mile west of its junction with Wright's Lake Road and beside Silver Creek, 4 miles NE (31 deg. ) of Kyburz
2021
Comment
UCR235132
Lupinus lepidus var. sellulus
George K. Helmkamp, William Barnes
2010-9-4
16937
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
UCR206281
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14722
Yolo
Western Sacramento Valley, Capay Valley; along CA-16, 1.5 miles west of Capay
70
Comment
UCR233052
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17320
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26, 2.8 miles northeast of CA-49 in Mokelumne Hill
476
Comment
UCR258384
Lupinus microcarpus var. densiflorus
George K. Helmkamp
2014-5-21
22915
El Dorado
Sierra Nevada Mountain Foothills, Bucks Bar Road, 0.8 mile northwest of the bridge over North Fork Cosumnes River
605
Comment
SD237439
Lupinus nanus
G. K. Helmkamp, E. A. Helmkamp
2010-4-23
15914
Placer
Sierra Nevada Mountains Foothills: along Salmon Falls Road, 5.6 miles south of junction with CA-49 at Pilot Hill, 0.65 mil north of the American River crossing (Pilot Hill 7.5'Q)
199
Comment
SD239746
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19192
Nevada
Northern Sierra Nevada Mountains Foothills: village of Washington, Relief Hill Road, 0.4 mile north of its junction with Maybert Road & NE of the bridge over the South Yuba River.
790
Comment
SEINET13203106
Lupinus nanus
George K. Helmkamp
2014-1
22882
Calaveras
Sierra Nevada Mountains Foothills: along CA-26, 2.6 miles northeast of CA-49 at Mokelumne Hill (Mokelumne Hill 7.5' Q.)
518
Comment
SEINET3815513
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2012-5-11
18940
Placer
Foothills, northern Sierra Nevada Mountains: Finning Mill Road at the junction with Forest Hill Road
346
Comment
UCR100791
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
1998-4-7
3189
Kern
3 mi. north of Maricopa on Calif. Hwy 33
252
Comment
UCR173613
Lupinus nanus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-6
10311
Amador
Northern Sierra Nevada foothills, middle of the city Jackson, 0.1 mile north of the junction of Calif. Hwy 49 and Calif. Hwy 88
378
Comment
UCR184964
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11802
Amador
Foothills, Northern Sierra Nevada Mountains, junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione
229
Comment
UCR217937
Lupinus nanus
George K. Helmkamp, Laurel Bezdecheck
2010-5-29
16143
El Dorado
Sierra Nevada Mountains Foothills, along Perry Creek, about 0.2 mile south of Slug Gulch Road, at a point 4.7 miles east of junction with Perry Creek Road
1027
Comment
UCR218133
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16383
Placer
Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax
616
Comment
UCR218180
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16185
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 3.3 miles east of the village of Sutter Creek
413
Comment
UCR230085
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17484
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
CLARK-A1045-1144
Lupinus polyphyllus subsp. superbus
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCR242338
Lupinus polyphyllus var. burkei
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16805
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road 0.6 mile west of Mormon Emigrant Trail in the Leek Spring area
2232
Comment
SBBG128990
Lupinus polyphyllus var. burkei
G. K. Helmkamp, E. A. Helmkamp
2011-9-13
18268
El Dorado
Foster Meadow Rd, 0.6 mi N of its jct with CA-88
2136
Comment
SBBG129047
Lupinus stiversii
G. K. Helmkamp, E. A. Helmkamp
2013-6-15
20876
El Dorado
Silver Fork Rd, 2.3 mi S of its jct with US-50 in Kyburz
1454
Comment
UCR106066
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
1997-3-7
1380
Kern
San Emigdio Ranch, SE portion
945
Comment
UCR159230
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9386
San Luis Obispo
Inner South Coast Ranges, Carrizo Hwy at Mile-19 (Calif. Hwy 58, east of Santa Margarita near Wilson Corner)
470
Comment
UCR161245
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2005-1-1
8877
Santa Barbara
Central Coast, N side Casmalia Hills, Corallitos Canyon along Brown Road, 3.5 mi west of Calif. highway 1.
146
Comment
UCR104007
Lupinus truncatus
George K. Helmkamp
1998-4-3
3085
Riverside
Sonoran (Colorado) Desert, West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. north of Tamarack Rd on Cottonwood Rd.
1280
Comment
UCR115564
Lupinus truncatus
George K. Helmkamp, E. A. Helmkamp
2000-4-20
5391
San Luis Obispo
Central Coast, Prefumo Cyn., 1.2 mi south of Los Osos Valley Rd.
183
Comment
UCR140125
Lupinus truncatus
George K. Helmkamp
2004-3-13
8343
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR173471
Luzula comosa
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10350
Amador
Northern Sierra Nevada Foothills, ESE of Sacramento; 3.2 mi. east of Pine Grove along Calif. Hwy 88
841
Comment
UCR246402
Luzula comosa
George K. Helmkamp, E. A. Helmkamp
2012-3-22
18631
Amador
Northern Sierra Nevada Mountains Foothills, Bell Road, 1.2 miles east of CA-49 at private road to Rancho Cicada Retreat
371
Comment
SD234741
Luzula macrantha
G. K. Helmkamp, E. A. Helmkamp
2008-4-25
13307
El Dorado
Sierra Nevada Mountains Foothills: junction of Meadowbrook and Bear Creek Roads at Traverse Creek, south of Gergetown.
673
Comment
UCR241966
Lycopus americanus
George K. Helmkamp, E. A. Helmkamp
2012-9-15
19831
El Dorado
Northern Sierra Nevada Mountains Foothills, Walton Lake; along Balderson Road, 0.4 mile south of its junction with Wentworth Springs Road
951
Comment
SD143861
Lythrum hyssopifolia
G. K. Helmkamp
1997-6-20
2049
San Luis Obispo
Ca. 0.2 mile northeast of Buckskin and Martingale in Los Osos.
Comment
UCR241316
Lythrum hyssopifolia
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19879
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy E-26 (Red Corral/West Point-Pioneer Rd.) just north of the bridge over the North Fork Mokelumne River
613
Comment
UCR100623
Machaeranthera canescens subsp. canescens
George K. Helmkamp
1997-9-30
2480
Inyo
White Mountains, [Deep Springs Valley], east side of White Mountains
1585
Comment
UCR115821
Machaeranthera canescens subsp. canescens
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5866
Mono
Eastern Sierra Nevada Mountains, Humboldt-Toiyabe National Forest, 5.1 mi west of US Hwy 395 at Conway Summit, east of Trumbull Lake, on Virginia Lake Road
2927
Comment
UCR58304
Machaeranthera canescens subsp. canescens
George K. Helmkamp
1989-10-7
s.n.
Riverside
San Jacinto Mtns, N slope of Thomas Mtn, 1 mi. SW of Hwy 74 on Thomas Mtn Road
1500
Comment
JEPS119454
Madia citrigracilis
George K. Helmkamp with E. A. Helmkamp
2011-8-6
18007
Amador
Northern Sierra Nevada Mountains Foothills: Red Dog Road, 1.6 miles northeast of its junction with You Bet Road, 3 miles NE (313 deg. ) of Gold Run.
Comment
UCD134169
Madia citrigracilis
G. K. Helmkamp; E. A. Helmkamp
2006-6-14
10703
Placer
Northern Sierra Nevada Mountains: 0.2 mile N of Forest Hill Road on unnamed road to Lake Clementine (general area NE of Auburn on Forest Hill Divide).
487
Comment
UCD134170
Madia citrigracilis
G. K. Helmkamp; E. A. Helmkamp
2006-8-24
11269
El Dorado
Northern Sierra Nevada Mountains: Ice House Road, 2.3 miles south of Union Reservoir Road.
1552
Comment
UCR200892
Madia citriodora
George K. Helmkamp, E. A. Helmkamp
2008-9-18
14122
Nevada
Foothills, northern Sierra Nevada Mountains, Tyler-Foote Road 5.0 miles northeast of the junction with CA-49
777
Comment
UCD134215
Madia elegans
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13036
Sutter
Sacramento Valley: Sutter Buttes, 2.3 miles northwest of Sutter on Pass Road.
70
Comment
JEPS119418
Madia elegans subsp. densifolia
G. K. Helmkamp, E. A. Helmkamp
2009-6-6
14917
El Dorado
Sierra Nevada Mountains Foothills, along Mosquito Road, 5.9 miles north of its junction with CA-50 in Placerville
Comment
RSA0093480
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19281
Amador
Northern Sierra Nevada Mountains. Panther Creek Road, 8.0 miles south of its junction with CA-88, along East Panther Creek.
1345
Comment
UCR233117A
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17747
Nevada
Northern Sierra Nevada Mountains Foothills, Red Dog Road, 1.6 miles northeast of its junction with You Bet Road, 3 miles NE (313 deg. ) of Gold Run
867
Comment
SBBG127570
Madia glomerata
G. K. Helmkamp, E. A. Helmkamp
2009-7-30
15334
Calaveras
Ganns Meadow Drive just S of its jct with CA-4, 16.7 mi NE of Arnold
2067
Comment
SD243099
Madia glomerata
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16874
Amador
Northern Sierra Nevada Mountains Foothills:along CA-88, 2.6 miles southwest of its junction with Mormon Emigrant Trail, c. 2.75 mile NNW of Upper Bear River Reservoir (Bear River Reservoir 7.5'Q)
2162
Comment
SEINET13276707
Madia glomerata
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-1
19438
Sierra
Northern Sierra Nevada Mountains: Henness Pass Road, 1.1 mile east of its junction with CA-89 at the north end of Kyburz Flat (Sardine Peak 7.5' Q.)
1907
Comment
UCD134260
Madia glomerata
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10901
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 6.1 miles north of Hwy US-50 at the junction with the road from Ice House Reservoir.
2030
Comment
UCR176220
Madia glomerata
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11110
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
UCR176293
Madia glomerata
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11010
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
UCR188507
Madia glomerata
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12523
Amador
Northern Sierra Nevada Mountains, along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake
2317
Comment
JEPS119469
Madia gracilis
George K. Helmkamp with E. A. Helmkamp
2010-8-7
16727
El Dorado
nSNH: Silver Fork Road, 0.4 mi east of its junction with Mormon Emigrant rail, at Jim Quinn Spring.
Comment
OBI82143
Madia gracilis
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
21096
El Dorado
Northern Sierra Nevada Mountains; Hell's Delight Road, just west of the junction with Silver Fork Road, 2.8 miles north of CA-88.
2006
Comment
SD236215
Madia gracilis
G. K. Helmkamp, Elizabeth Helmkamp
2008-6-3
13557
El Dorado
Sierra Nevada Mountains: Pony Express Trail, 0.8 mile east of Sly Park Road (Pollock Pines) and parallel to US-50 (Pollock Pines 7.5'Q)
1213
Comment
SD236218
Madia gracilis
G. K. Helmkamp
2008-6-17
13672
Amador
Northern Sierra Nevada Mountains: Bear River Reservoir Road, 0.1 mile south of its junction with CA-88 (Peddler Hill 7.5'Q)
1990
Comment
SEINET2442644
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2009-8-6
15400
Amador
Sierra Nevada Mountains: Panther Creek Road, 0.4 mile south of its junction with CA-88; jct. is 4.0 miles NE of Cook's Station (Peddler Hill 7.5' Q.).; 0
1590
Comment
UCR122882
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2001-5-29
6698
San Benito
Coast Range, San Andrea Rift Zone, Coalinga Road. about 2 miles southeast of Hernandez [7.26 mi southeast of Hernandez Reservoir]
732
Comment
UCR160733
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9516
Monterey
Central Coast, west edge of Santa Lucia Range, overlooking Pacific Ocean, 0.4 mi east of Calif. Hwy 1 along Los Burros Road
113
Comment
UCR163786
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2005-3-31
9282
Santa Barbara
Outer South Coast Ranges, San Rafael Mountains. 14.0 mi NE of Los Olivos along Figueroa Mountain Road
1000
Comment
UCR171195
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9743
El Dorado
Northern Sierra Nevada Foothills, 20 mi WSW of Lake Tahoe; Ice House Road, N of Calif. Highway 50 and 1.5 mi south of junction with Ice House Reservoir
1637
Comment
UCR241360
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19262
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 0.9 mile south of its junction with CA-88, S of Hwy 88/Carson Pass Hwy. and W of Lower Bear Reservoir
1617
Comment
UCR257607
Madia gracilis
George K. Helmkamp, Amy Barnes
2014-5-8
22834
Amador
Sacramento Valley/Sierra Nevada Foothills, Tonzi Road, 0.4 mile east of its junction with CA-124, 4.5 air miles NE (35 deg. ) of Ione
188
Comment
UCR262003
Madia gracilis
George K. Helmkamp, Amy Barnes
2014-10-10
23159
El Dorado
Northern Sierra Nevada Mountains, along CA-89, 0.6 mile northwest of Luther Pass
2378
Comment
SD239512
Maianthemum racemosum
G. K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18038
Tuolumne
Northern Sierra Nevada Mountains: Forest Route 5N14, 5.0 miles north of Boards Crossing of the North Fork Stanislaus River (Boards Crossing 7.5'Q)
1716
Comment
UCR118293
Malacothrix coulteri
George K. Helmkamp, E. A. Helmkamp
1998-4-19
3364
San Bernardino
Mojave Desert, northwest side of East Cronese Lake, about 15 miles west of Baker
335
Comment
SD224860
Malacothrix glabrata
G. K. Helmkamp
1998-4-4
3140
Riverside
Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) and CA hwy 177 (Desert Center-Rice Rd.)
456
Comment
UCR134379
Malacothrix incana
George K. Helmkamp
2003-9-26
8171
San Luis Obispo
Central Coast, SW edge of Oceano; border of sand dune recreation area
6
Comment
UCR18372
Malacothrix incana
George K. Helmkamp
1975-11-16
s.n.
San Luis Obispo
Montana de Oro State Park
Comment
SEINET1004418
Marah fabacea
George K. Helmkamp
2004-1
8278
San Luis Obispo
Central Coast: Nipomo Mesa, Pomeroy Rd, 0.2 mi N of Willow Rd.
130
Comment
UCR107350
Matricaria matricarioides
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3624
Fresno
Coast Range, Warthan Creek Canyon, along Calif. Hwy 198, 27.6 mi. west of Interstate 5, west of Coalinga
457
Comment
UCR140469
Matricaria matricarioides
George K. Helmkamp
2004-3-13
8347
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR222540
Matricaria matricarioides
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15885
El Dorado
Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill
314
Comment
UCR237320
Matricaria matricarioides
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18740
Butte
Northern Sacramento Valley, Middle Honcut Road, 1.5 miles east of CA-70, ESE of Gridley
18
Comment
UCR61723
Meconella linearis
George K. Helmkamp
1990-4-19
s.n.
San Luis Obispo
Central Coast Range, State Hwy 58 at Parkhill Road, c. 3 mi northeast of Santa Margarita
367
Comment
RSA0047748
Medicago lupulina
George K. Helmkamp, Mary Alice Barnes
2013-5-10
20532
El Dorado
Wentworth Springs Road, 3.4 miles east of Georgetown
983
Comment
RSA0057870
Medicago lupulina
George K. Helmkamp, E. A. Helmkamp
2013-11-9
22474
Calaveras
Gwin Mine Road, 1.3 rd. miles north of Paloma Rd. at Paloma, 3.3 miles SW (242 deg air) of Mokelumne Hill
384
Comment
UCR250619
Medicago lupulina
George K. Helmkamp, Mary Alice Barnes
2013-5-10
20532
El Dorado
Northern Sierra Nevada Mtns. Foothills, Wentworth Springs Road, 3.4 miles east of Georgetown
983
Comment
SD241814
Medicago polymorpha
G. K Helmkamp, E. A. Helmkamp
2010-4-17
15879
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q)
313
Comment
SEINET3411996
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2012-4-4
18672
Calaveras
Northern Sierra Nevada Mountains Foothills: along CA-26, 0.6 mile NE of it junction with Paloma Road, 4.5 km SW (213 degrees) of Mokelumne Hill
489
Comment
UCD107835
Medicago polymorpha
G. K. Helmkamp; E. A. Helmkamp
2007-5-7
11943
El Dorado
Northern Sierra Nevada Mountains: Pedro Hills Road, 0.3 mile west of the junction with CA-49, junction 5.3 miles south of Cool.
299
Comment
UCR140408
Medicago polymorpha
George K. Helmkamp
2004-2-19
8302
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
UCR238440
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2012-4-4
18694
Calaveras
Northern San Joaquin Valley, along CA-26, 0.1 mile west of its junction with Milton Road, between Linden & Valley Springs
67
Comment
UCR170663
Mentha pulegium
George K. Helmkamp, E. A. Helmkamp
2005-8-14
9810
El Dorado
Northern Sierra Nevada Foothills, Diamond Springs. Lake Oaks mobile home park
521
Comment
RSA0035746
Mentha spicata var. spicata
George K. Helmkamp, Elizabeth A. Helmkamp
2013-9-13
22291
Amador
Volcano Road; 0.1 mile northwest of the village of Volcano
671
Comment
UCR245728
Mentha spicata var. spicata
George K. Helmkamp, Amy Barnes
2013-9-24
22377
Calaveras
Northern Sierra Nevada Mountains, north end of White Pine Reservoir, 0.6 mile north of Arnold
1186
Comment
UCR104789
Mentzelia albicaulis
George K. Helmkamp
1998-4-4
3126
San Bernardino
Mojave Desert, S edge of Cadiz Dry Lake, 13.1 mi. north of mile-marker 76 on Calif. hwy 62 (Twentynine Palms Hwy), east of Twentynine Palms
183
Comment
UCR157831
Mentzelia dispersa
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4151
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
Comment
UCR13862
Mentzelia montana
George K. Helmkamp
1973-6-14
s.n.
Mono
Owens Valley, Owens River, c. 1-1.5 miles upstream from Big Springs [near Arcularius Ranch]
2195
Comment
UCR130245
Mentzelia veatchiana
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6500
Kern
Tehachapi Mtns, Hart Flat turnoff from Calif. Hwy 58
884
Comment
SD240926
Mertensia ciliata
George K Helmkamp, E. A. Helmkamp
2010-7-23
16617
El Dorado
Northern Sierra Nevada Mountains: Forestry Route 42, 0.2 mile west of its junction with Wright's Lake Road and beside Silver Creek, 4 miles NE (31a^z) of Kyburz (Kyburz 7.5'Q)
2021
Comment
UCD134486
Micropus californicus
G. K. Helmkamp; E. A. Helmkamp
2007-4-30
11892
El Dorado
Northern Sierra Nevada Mountains: hiking trail leaving from CA-49, 3.4 miles northwest of Placerville.
511
Comment
UCR106468
Micropus californicus
George K. Helmkamp, E. A. Helmkamp
1998-5-13
3575
Tulare
Sierra Nevada Foothills, 11.5 mi east of Fountain Springs along Hot Springs Road
808
Comment
CAS-BOT-BC228613
Micropus californicus var. californicus
George K. Helmkamp; E. A. Helmkamp
2011-6-7
17486
Amador
Northern Sierra Nevada Mountains Foothills: Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
UCD134485
Micropus californicus var. californicus
G. K. Helmkamp; E. A. Helmkamp
2007-4-5
11735
Amador
Northern Sierra Nevada Mountains, Sutter to Ione Road. 0.4 mile east of CA-49, northeast of Ione.
180
Comment
UCR159427
Micropus californicus var. californicus
George K. Helmkamp, E. A. Helmkamp
2005-5-12
9426
Monterey
Central Coast Ranges, 8 mi west of US-101 on Calif. Highway G18 in Hames Valley
341
Comment
RSA614975
Microsteris gracilis subsp. humilis
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3243
San Luis Obispo
Soda Lake Rd at Arrowbear Trail (vic. of California Valley, ca. 5 mi. NW of Soda Lake)
610
Comment
RSA792069
Mimulus
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19385
Amador
Northern Sierra Nevada Mountains: Shot Rock Vista Rest Stop along CA-88 (Carson Pass Highway), 1 mile west of junction with Mormon Emigrant Trail.
2329
Comment
CLARK-A1045-496
Mimulus androsaceus
George K. Helmkamp
1979-6-5
#1
San Bernardino
San Bernardino Mountains north of Baldwin Lake and State Highway 38 [18?]; sagebrush scrub area; drying flat; ; Big Bear City 7.5'Q
2133
Comment
UCD122211
Mimulus aurantiacus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-11
10400
Nevada
Northern Sierra Nevada Foothills, CA Hwy 49 at the crossing of the South Yuba River (N of Nevada City).
402
Comment
UCR122130
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2000-4-21
5446
San Luis Obispo
Santa Lucia Range, Santa Rosa Creek Road, 5.6 mi east of Cambria
76
Comment
UCR130080
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2001-5-30
6741
Santa Clara
South Coast Range, Santa Clara Valley, Gilroy Hot Springs Rd., 0.5 mile south of springs at Coyote Creek
183
Comment
UCR173531
Mimulus aurantiacus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10400
Nevada
Northern Sierra Nevada Foothills, Calif. Hwy 49 at the crossing of the South Yuba River (N of Nevada City)
402
Comment
UCR201724
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2008-10-23
14277
Amador
San Joaquin Valley, Comanche Parkway 0.1 mile east of the junction with Coal Mine Road, north of Comanche Reservoir
137
Comment
UCR222571
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15891
Placer
Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 7.3 miles southwest of its junction with CA-49 near Pilot Hill
332
Comment
UCR237380
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19164
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 3.6 miles north of its junction with CA-20
1006
Comment
RSA794914
Mimulus bicolor
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17957
Amador
Ellis Road, 2.1 miles south of its junction with CA-88.
1794
Comment
RSA0012226
Mimulus breweri
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17827 -A
Tuolumne
Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River.
1367
Comment
UCR197642
Mimulus breweri
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13746
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 1.5 miles south of its junction with CA-88, jct. between Mormon Emigrant Trail and Bear Valley Reservoir Road
2021
Comment
UCR101801
Mimulus cardinalis
George K. Helmkamp, E. A. Helmkamp
1998-8-17
4443
Riverside
Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line
503
Comment
CLARK-A1045-158
Mimulus floribundus
George K. Helmkamp
1978-6-1
Riverside
Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q
Comment
CLARK-A1045-461
Mimulus floribundus
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains beside Forest Service road 3N66Y, north of 3N08, where road crosses strem bed; along creek; ; Big Bear City 7.5'Q
2285
Comment
UCR166143
Mimulus floribundus
George K. Helmkamp, E. A. Helmkamp
1995-6-21
95-5- 11
Mariposa
Sierra Nevada Mtns. Foothills, roadside cut along CA Hwy 49 at Hell Hollow, 1.5 mi south of the Merced River crossing
579
Comment
UCR37638
Mimulus floribundus
George K. Helmkamp
1984-5-5
E 10
Riverside
Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve
549
Comment
UCR118339
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2000-9-2
5966
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road
137
Comment
UCR171035
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9721
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
UCR173493
Mimulus guttatus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-29
10273
El Dorado
Northern Sierra Nevada Foothills, Rock Creek Road, 5.7 mi. east of Calif. Hwy 193, N of the South Fork of the American River
427
Comment
UCR193109
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12350
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road 0.6 mile north of Hwy CA-20, at the border of Placer Co.
1387
Comment
UCR194697
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12210
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill
488
Comment
UCR217403
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2010-6-14
16293
El Dorado
Sierra Nevada Mountains Foothills, Fairplay Road, 0.3 mile west of its junction with Scorpi Lane, 1.15 air mi. NW (293 deg. ) of Fair Play
668
Comment
UCR217928
Mimulus guttatus
George K. Helmkamp, Laurel Bezdecheck
2010-5-29
16149
El Dorado
Sierra Nevada Mountains Foothills, along Perry Creek, about 0.2 mile south of Slug Gulch Road, at a point 4.7 miles east of junction with Perry Creek Road
1027
Comment
UCR233419
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17527
Nevada
Northern Sierra Nevada Mountains Foothills, Tyler Foote Crossing Road, 3.3 miles north of its junction with Grizzly Hill Road, NE of North Columbia near the Sierra Co. line/Middle Yuba River
878
Comment
UCR250087
Mimulus guttatus
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20210
Calaveras
Eastern San Joaquin Valley, Milton, Jenny Lind Road (Milton Rd.), 7.4 miles south of its junction with CA-26
120
Comment
UCR257208
Mimulus guttatus
George K. Helmkamp
2014-5-17
22907
Calaveras
Sierra Nevada Mountains Foothills, Happy Valley, just east of Mokelumne Hill, along CA-26 at the west junction with Jesus Maria Road
524
Comment
UCR176244
Mimulus jepsonii
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10842
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
RSA0042077
Mimulus kelloggii
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20346
Placer
Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax
561
Comment
RSA0013401
Mimulus mephiticus
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19305
Amador
Bear River Road at the south end of the dam of Lower Bear River Reservoir
1774
Comment
UCR242327
Mimulus mephiticus
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16679
Placer
Northern Sierra Nevada Mountains, Forest Hill Road, 1.8 miles east of Forest Route 13/American Hill Road
1662
Comment
SEINET3245942
Mimulus moschatus
G. K. Helmkamp, E. A. Helmkamp
2010-1
16513
Los Angeles
Northern Sierra Nevada Mountains: between the west shore of Silver lake and CA-88; lakeside rest stop area (Tragedy Spring 7.5')
2234
Comment
UCR200894
Mimulus moschatus
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14058
Amador
Northern Sierra Nevada Mountains, along Cole Creek Road near the crossing of Cole Creek 6.8 miles east of the Bear River Reservoir dam
1857
Comment
UCR206777
Mimulus moschatus
George K. Helmkamp, Amy Barnes
2009-7-8
15136
El Dorado
Sierra Nevada Mountains, Wrights Lake Road, 0.4 mile east of its junction with Ice House Road, about 1.3 miles north of Ice House
1654
Comment
UCR249141
Mimulus moschatus
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20765
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.2 miles north of the Yuba County line
901
Comment
UCR110973
Mimulus parishii
George K. Helmkamp
1998-6-27
4100
Riverside
Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring
1585
Comment
UCR110957
Mimulus pilosus
George K. Helmkamp
1998-6-27
4104
Riverside
Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring
1585
Comment
CLARK-A1045-377
Mimulus purpureus
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains just west of Stanfield cut-off, south side of lake; tree-covered knoll; ; Big Bear Lake 7.5'Q
2133
Comment
RSA0013373
Mimulus tilingii
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16877
Amador
Northern Sierra Nevada Mountains: along CA-88, 2.6 miles southwest of its junction with Mormon Emigrant Trail, e. 2.75 mi NNW of Upper Bear River Reservoir.
2162
Comment
RSA795349
Mimulus tilingii
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18135
Alpine
Blue Lakes Road, 1.4 miles north of its junction with Tamarack Road.
2506
Comment
UCR103536
Mimulus tilingii
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2401
Alpine
Sierra Nevada Mountains, 0.2 mi northwest of Sonora Pass along CA Hwy 108
2912
Comment
UCR229427
Mimulus tilingii
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18030
Tuolumne
Northern Sierra Nevada Mountains, Forest Route [5N14], 3.8 miles [northeast] of Boards Crossing of the North Fork Stanislaus River
1503
Comment Read comments Jun 12 2016
UCR234575
Mimulus tilingii
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18135
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 1.4 miles north of its junction with Tamarack Road
2506
Comment
UCR256500
Mimulus tilingii
George K. Helmkamp, Amy Barnes
2014-5-8
22859
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 0.2 mile east of old CA-49 in town of Sutter Creek
375
Comment
RSA781314
Mimulus torreyi
George K. Helmkamp, E. A. Helmkamp
2009-7-22
15254
El Dorado
Wrights Lake Road, 2.7 miles north of its junction with US-50, c. 0.25 mi. due S of Chimney Flat
2000
Comment
UCD122932
Mimulus torreyi
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10885
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 6.1 miles north of Hwy US-50; at the junction with the road from Ice House Reservoir.
2029
Comment
UCR229473
Mimulus torreyi
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17874
Nevada
Northern Sierra Nevada Mountains, along CA Hwy 20, 0.8 mi. east of Bowman Lake Road, 1.23 mi. NE (50 deg. ) of Emigrant Gap and 0.35 mi. N of I-80
1541
Comment
UCR130996
Mirabilis bigelovii var. bigelovii
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3513
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
CLARK-A1045-767
Mirabilis bigelovii var. retrorsa
George K. Helmkamp
1977-11-5
San Bernardino
Morongo Valley at north edge of Morongo Valley beside State Highway 62; creosote bush scrub; Morongo Valley 7.5'Q
Comment
UCR30085
Mohavea confertiflora
George K. Helmkamp
1983-4-5
483- 9
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
CAS-BOT-BC523888
Mollugo verticillata
George K. Helmkamp; E. A. Helmkamp
2012-10-1
19943
Sacramento
Eastern Sacramento Valley: Latrobe Rd, 2.4 mi W of the El Dorado Co. line, N of Rancho Murieta
73
Comment
SD143870
Monardella odoratissima
G. E. Helmkamp
1997-9-11
2384
Mono
Along highway CA-120 0.5 miles N of Tioga Pass; Nunatak meadow area
2956
Comment
SD248449
Monardella odoratissima
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20914
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, north side of its junction with Mormon Emigrant Trail (Tragedy Spring 7.5'Q)
2188
Comment
SEINET3260242
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13999
Alpine
Northern Sierra Nevada Mountains; along Blue Lake road, 8.5 miles south of its junction with CA-88.
2497
Comment
UCR175704
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10929
El Dorado
Northern Sierra Nevada Mountains, 1.1 miles west of Silver Creek along the road from Ice House Reservoir to Wright's Lake
2043
Comment
UCR216046
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15352
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR219050
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16518
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
UCR257732
Monardella odoratissima subsp. pallida
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19518
Placer
Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary
2136
Comment
UCR104814
Monardella villosa subsp. obispoensis
George K. Helmkamp
1997-6-21
2060
San Luis Obispo
Central Coast, Questa Ridge north of San Luis Obispo and 0.4 mi west of radio towers
854
Comment
UCR122989
Monolopia lanceolata
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6642
Kern
Temblor Range, [dirt road 0.45 km south of] Calif. Hwy 58, very near the San Luis Obispo Co. line
427
Comment
UCR103332
Monoptilon bellidiforme
George K. Helmkamp
1998-3-30
3060
San Bernardino
Mojave Desert, E of town of Joshua Tree & south of Copper Mtn, 0.4 mi. east of the S end of Kerr Rd near Joshua Tree National Park
884
Comment
SD224862
Monoptilon bellioides
G. K. Helmkamp
1998-4-4
3165
Riverside
Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station.
305
Comment
UCR50456
Monoptilon bellioides
George K. Helmkamp
1988-2-28
30
Imperial
Sonoran (Colorado) Desert, at end of a dirt road c. 2 miles WSW of Crucifixion Thorn Natural Area, SE of Ocotillo and SW of Hwy 98
153
Comment
CLARK-A1045-28
Monoptilon bellioides
George K. Helmkamp
1977-4-24
Inyo
Panamint Mountains east of Townes Pass;
1462
Comment
RSA0035520
Montia parvifolia
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-5
20759
Sierra
Along CA-49, 1.2 miles north of the Yuba County line
901
Comment
SEINET1907216
Montia parvifolia
G. K. Helmkamp, Elizabeth A. Helmkamp
2006-1
10556
El Dorado
Northern Sierra Nevada foothills; Along Hwy US-50 at Bridal Veil Falls, east of Pacific House.
100
Comment
UCR230992
Montia parvifolia
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17537
Sierra
Northern Sierra Nevada Mountains Foothills, 5.9 miles north of Camptonville along CA-49, about 1.2 miles northeast of the Yuba Co. line
899
Comment
UCR237715
Montia parvifolia
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19298
Amador
Northern Sierra Nevada Mountains, Bear River Road at the south end of the dam of Lower Bear River Reservoir
1774
Comment
UCR197584
Morus alba
George K. Helmkamp, E. A. Helmkamp
2008-5-30
13547
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Diamond Springs; corner of Patterson Dr. and CA-49
530
Comment
RSA0011984
Muhlenbergia andina
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18229
El Dorado
Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
UCR61174
Muhlenbergia asperifolia
George K. Helmkamp
1985-8-21
885- 28
Mono
Owens Valley, along Owens River Road, 3 miles north of Lake Crowley
2073
Comment
UCD86617
Muhlenbergia filiformis
G. K. Helmkamp; E. A. Helmkamp
2006-8-14
11261
Nevada
Northern Sierra Nevada Mountains: about 0.7 mile east of Donner Pass along Donner Pass Rd.
2040
Comment
UCR201742
Muhlenbergia filiformis
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13944
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road at Lyons Creek, 4.0 miles north of CA-50
2043
Comment
SEINET13384144
Muhlenbergia richardsonis
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-1
19475
Sierra
Northern Sierra Nevada Mountains: Little Truckee River valley along Hwy CA-89, 3.5 road miles north of the Nevada County line, 9.6 air miles SE (136 deg. ) of Sierraville
1878
Comment
UCD86921
Muhlenbergia richardsonis
G. K. Helmkamp; E. A. Helmkamp
2006-8-14
11252
Nevada
Northern Sierra Nevada Mtns.: about 0.7 mile east of Donner Pass along Donner Pass Rd.
2041
Comment
UCR132021
Myoporum laetum
George K. Helmkamp
2003-11-22
8221
San Luis Obispo
Central Coast, base of Nipomo Mesa on unnamed road 0.1 mi SW of Halcyon Rd at the railroad crossing, just south of Arroyo Grande
15
Comment
CAS-BOT-BC478185
Myosotis laxa
G. K. Helmkamp; E. A. Helmkamp
2009-6-11
14961
Shasta
Southern Cascade Mountains: McCumber Lake Road, at the south end of McCumber Lake and 3.3 miles northeast of its junction with CA-44
1099
Comment
RSA0064547
Myosotis laxa
George K. Helmkamp, E. A. Helmkamp
2007-6-20
12389
El Dorado
Along Mormon Emigrant Trail, 17.2 miles ESE of its junction with Sly Park Road at Jenkinson Lake
2128
Comment
SD224992
Nama demissa var. demissa
G. K. Helmkamp
1998-3-30
3046
San Bernardino
Mojave Desert: vicinity of Twentynine Palms; Encelia Rd, 1.0 mi. N of CA hwy 62.
792
Comment
SD243156
Nama lobbii
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18323
El Dorado
Northern Sierra Nevada Mountains: Loon Lake [Ice House] Road, 2.7 miles NNE of its junction with Wentworth Springs Road. Base of ridge and roadside.
1883
Comment
UCR29819
Nama pusilla
George K. Helmkamp
1983-3-24
383- 9
Riverside
Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road
336
Comment
UCR233246
Navarretia intertexta subsp. intertexta
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17698
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
Comment
SD239874
Navarretia leptalea subsp. leptalea
G. K. Helmkamp, E. A. Helmkamp
2007-8-1
12664
Nevada
Northern Sierra Nevada Mountains: near Camp Spaulding; along Lake Spaulding Road 0.4 mile north of its junction with CA-20 (Blue Canyon 7.5'Q)
1573
Comment
SD239875
Navarretia leptalea subsp. leptalea
G. K. Helmkamp, E. A. Helmkamp
2011-7-12
17736
Calaveras
Sierra Nevada Mountains: Winton Road (Forest Route 7N03), 16.2 miles east of its junction with CA-26 in West Point (Garnet Hill 7.5'Q)
1668
Comment
UCD118235
Navarretia squarrosa
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12588
El Dorado
Northern Sierra Nevada Mountains: Traverse Creek Road at the crossing of Traverse Creek; about 2 miles southeast of its junction with CA-193.
732
Comment
UCR101131
Nemacladus orientalis
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2949
Imperial
Sonoran (Colorado) Desert, Little Picacho Wash along Picacho Rd, 2.5 mi. south of Picacho State Recreation Area
152
Comment
UCR92485
Nemacladus orientalis
George K. Helmkamp
1995-3-16
s.n.
Riverside
Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center
200
Comment
RSA519024
Nemacladus tenuis var. aliformis
George K. Helmkamp
1986-4-7
757
Riverside
Canyon Just E of and parallel to Hwy 62, above Indian Ave. BLM Land.
579
Comment
SD257289
Nemophila heterophylla
George K. Helmkamp, Elizabeth Helmkamp
2013-5-2
20450
El Dorado
Sierra Nevada Mountains Foothills: Happy Valley Road, 0.6 mile east of its junction with Mt. Aukum road, 1.65 air miles NE (72a^z) of Somerset (Camino 7.5'Q)
665
Comment
UCR194876
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12124
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.2 miles north of North San Juan
610
Comment
UCR194912
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12134
Yuba
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville
802
Comment
UCR218144
Nemophila heterophylla
George K. Helmkamp, Amy Barnes
2010-5-7
15993
Calaveras
Sierra Nevada Mountains Foothills, Michel Road, 0.1 mile east of its junction with Mountain Ranch Road. 5.2 mi. east (92.5 deg. ) of San Andreas
512
Comment
UCR230149
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17351
Calaveras
Northern Sierra Nevada Mountains Foothills, Railroad Flat Road at junction with Wharregard Road and beside Esperanzo Creek, 8.3 miles NW (289 deg. ) of Arnold
759
Comment
UCD120251
Nemophila menziesii var. menziesii
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-20
10204
El Dorado
Northern Sierra Nevada: Between N and Middle forks of Cosumnes River; junction of Sand Ridge Road and Cutaway Lane, 2.1 mi SW of Somerset.
665
Comment
UCR173607
Nemophila menziesii var. menziesii
George K. Helmkamp, Elizabeth Helmkamp
2006-4-7
10170
Amador
Northern Sierra Nevada Foothills, E of Sacramento, SW of Shenandoah Valley; along Calif. Hwy 49, c. 4.5 mi north of Plymouth
341
Comment
UCR207868
Nemophila parviflora var. austiniae
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14694
El Dorado
Sierra Nevada Mountains Foothills, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
Comment
UCR208279
Nemophila parviflora var. austiniae
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14633
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill
771
Comment
UCR218142
Nemophila parviflora var. parviflora
George K. Helmkamp, Amy Barnes
2010-5-7
16002
Calaveras
Sierra Nevada Mountains Foothills, Mountain Ranch Road, 3.2 miles east of San Andreas
436
Comment
UCD119945
Nemophila pulchella
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-29
10278
El Dorado
Northern Sierra Nevada: Rock Creek Road, 5.7 mi. E of CA Hwy 193, N of the South Fork of the American River.
427
Comment
CAS-BOT-BC226807
Nemophila pulchella var. fremontii
George K. Helmkamp; E. A. Helmkamp
2011-4-12
17177
El Dorado
Foothills Northern Sierra Nevada Mountains: Placerville, along Forni Road, 0.2 mile northwest of its Weber Creek crossing, SE of Hwy 50 near Diamond Springs
488
Comment
UCR198563
Nemophila pulchella var. gracilis
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13168
Amador
Sierra Nevada Mountains Foothills, Middle Bar Road, 3.7 miles south of its junction with CA-49 just south of Jackson
345
Comment
UCD119955
Nemophila spatulata
G. K. Helmkamp; Elizabeth Helmkamp
2007-6-20
12406
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail 2.0 miles west of its junction with Hwy CA-88 and at Singleton Springs.
2247
Comment
UCR245582
Nepeta cataria
George K. Helmkamp, Amy Barnes
2013-9-24
22347
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
UCR261623
Nepeta cataria
George K. Helmkamp, Amy Barnes
2014-9-16
23100
Alpine
Eastern Sierra Nevada Mountains, Carson Valley, 1.35 mi. NE of Paynesville at junction of Fredericksburg Lane and US-88 (Carson Pass Hwy), 2.8 miles northeast of Woodfords
1340
Comment
SEINET3246140
Nicotiana acuminata var. multiflora
G. K. Helmkamp, E. A. Helmkamp
2009-1
15664
El Dorado
Sierra Nevada Mountains Foothills: Cedar Ravine Road at the junction with Camp Nauvoo Road, 0.1 mile south of Weber Creek and c. 2.5 mi. SE of Placerville.
567
Comment
UCR18548
Oenanthe sarmentosa
George K. Helmkamp
1974-9-28
s.n.
San Luis Obispo
Central Coast, Morro Bay area, Hazard Cyn, near ocean
34
Comment
RSA615333
Oenothera deltoides subsp. deltoides
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2689
Riverside
Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains
Comment
UCD106937
Oenothera elata subsp. hirsutissima
G. K. Helmkamp; E. A. Helmkamp
2007-8-30
12846
El Dorado
Northern Sierra Nevada Mountains: Along Hwy CA-49 at the southeast end of Coloma.
238
Comment
UCR158385
Oenothera elata subsp. hookeri
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8663
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR101675
Oligomeris linifolia
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2799
San Bernardino
Eastern Mojave Desert, Saltbush scrub flat east of Soda Lake and 5.9 mi SSE of Baker on a farm road leading to Little Cowhole Mtn.
299
Comment
UCR104047
Oligomeris linifolia
George K. Helmkamp
1998-4-4
3108
San Bernardino
Mojave Desert, S edge of Cadiz Dry Lake, 13.1 mi. north of mile-marker 76 on Calif. hwy 62 (Twentynine Palms Hwy), east of Twentynine Palms
183
Comment
UCR173258
Orobanche uniflora
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10446
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road
422
Comment
UCR114384
Orthilia secunda
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2257
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
CLARK-A1045-915
Oryzopsis miliacea
George K. Helmkamp
1977-8-11
Ventura
Port Hueneme 246 East A Street; in empty lot beside this address; Oxnard 7.5'Q
Comment
UCR170338
Osmorhiza chilensis
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9878
El Dorado
Northern Sierra Nevada Foothills, Silver Fork, 2.1 mi west of Kyburz along US Highway 50
1220
Comment
UCR174407
Osmorhiza chilensis
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10568
El Dorado
Northern Sierra Nevada foothills, along Hwy US-50, 7.2 miles east of Ice House Canyon Road
1162
Comment
UCR197290
Osmorhiza chilensis
George K. Helmkamp, E. A. Helmkamp
2008-5-29
13514
Calaveras
Sierra Nevada Mountains, Arnold Way Road parallel to CA-4 (Ebbetts Pass Hwy), 0.8 mile northeast of Arnold
1265
Comment
SD212456
Osmorhiza occidentalis
G. K. Helmkamp, E. A. Helmkamp
2006-8-3
11115
Alpine
Northern Sierra Nevada Mountains; Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake.
2509
Comment
SEINET3823368
Oxalis laxa
George K. Helmkamp, E. A. Helmkamp
2011-5-19
17311
Calaveras
Sierra Nevada Foothills, Paloma Road, 3.1 miles southwest of its junction with CA-26, 4 miles NE (34 deg.) of Valley Springs (Valley Springs 7.5' Q)
352
Comment
UCR197520
Oxalis laxa
George K. Helmkamp, E. A. Helmkamp
2008-4-11
13250
Calaveras
Sierra Nevada Mountains Foothills, along Fricot City Road, 1.8 miles northwest of CA-49, c. 4.6 miles (air) SE of San Andreas
387
Comment
UCR104837
Oxalis oregana
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-25
2135
Mendocino
North Coast Range, Anderson Valley, Calif. Hwy 128, NW of Boonville
91
Comment
RSA714094
Oxalis pes-caprae
George K. Helmkamp
2003-12-18
8230
San Luis Obispo
Arroyo Grande, Courtland Ave. one block S of Grand Ave. Brooklyn Creek, opposite San Francisco.
15
Comment
UCR122589
Oxalis pes-caprae
George K. Helmkamp
1995-11-23
116
San Luis Obispo
Central Coast, Junction of Martingale Avenue and Buckskin Drive in Los Osos
46
Comment
CAS-BOT-BC413284
Oxytheca dendroidea subsp. dendroidea
G. K. Helmkamp
1996-10-17
1256
Mono
0.2 mi south of Benton Hot Springs beside highway CA-120
1828
Comment
UCR95904
Oxytheca dendroidea subsp. dendroidea
George K. Helmkamp
1996-10-17
1256
Mono
Owens Valley, 0.2 mi. south of Benton Hot Springs, beside Calif. Hwy 120
1745
Comment
UCD88146
Panicum acuminatum var. acuminatum
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12792
El Dorado
Northern Sierra Nevada Mountains: Ice House Road at the junction to the lower campground and boat ramp of Loon Lake.
1000
Comment
UCR67456
Panicum capillare
George K. Helmkamp
1990-9-23
I- 24
Modoc
Warner Mtns, Goose Lake, within 0.1 mi of the Oregon border
1476
Comment
UCR119242
Panicum urvilleanum
George K. Helmkamp, E. A. Helmkamp
1998-4-19
3369
San Bernardino
Mojave Desert, northwest side of East Cronese Lake, about 15 miles west of Baker
335
Comment
UCR197243
Parvisedum congdonii
George K. Helmkamp, E. A. Helmkamp
2008-4-25
13328
El Dorado
Sierra Nevada Mountains Foothills, along Bear Creek Road 0.4 mile southeast of its junction with Meadow Brook Road, SE of Georgetown
747
Comment
SEINET9262006
Paspalum dilatatum
George K. Helmkamp, Amy Barnes
2013-1
22308
Calaveras
Sierra Nevada Mountains Foothills: Utica Powerhouse Road (beside Angel's Creek) 0.6 mile northeast of its junction with CA-4 (Murphys 7.5 Q
974
Comment
UCR232673
Paspalum dilatatum
George K. Helmkamp, E. A. Helmkamp
2011-10-15
18437
San Joaquin
San Joaquin Valley, along CA-26, 0.6 mile northeast of Escalon-Bellota Rd.
40
Comment
UCR253537
Paspalum dilatatum
George K. Helmkamp, Amy Barnes
2013-9-23
22308
Calaveras
Sierra Nevada Mountains Foothills, Utica Powerhouse Road (beside Angel's Creek), 0.6 mile northeast of its junction with CA-4
974
Comment
UCR259854
Paspalum dilatatum
George K. Helmkamp, Elizabeth Helmkamp
2013-10-18
22436
Amador
Sierra Nevada Mountains Foothills, Plymouth, at the junction of Mineral Street and Mill Street, near Hwy CA-49
329
Comment
UCR122968
Pectocarya heterocarpa
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6432
San Bernardino
Eastern Mojave Desert, US-95, 8.5 mi south of I-40.
351
Comment
RSA519018
Pectocarya linearis subsp. ferocula
George K. Helmkamp
1986-4-7
770
Riverside
South of Morongo Valley: First canyon east of and parallel to Hwy 62 north of Indian Ave. B.M. land.
579
Comment
CLARK-A1045-83
Pectocarya penicillata
George K. Helmkamp
1978-4-27
Riverside
San Jacinto Mountains .5 mile [north northwest] from CA Highway 74; Hemet 15'Q
Comment
CLARK-A1045-139
Pectocarya platycarpa
George K. Helmkamp
1978-4-1
Riverside
Deep Canyon rocky flat by University of California Reserve System Boyd research station; Palm Desert 15'Q
Comment
UCR51311
Pectocarya setosa
George K. Helmkamp
1988-4-29
s.n.
San Bernardino
Eastern Mojave Desert, Fenner Valley between Hackberry Mtns & Vontrigger Hills, 11.3 mi NNW of Goffs
1100
Comment
UC2015601
Pedicularis attollens
G. Helmkamp
1995-9-23
3 -32
Alpine
West side of Sonora Pass just beyond the Mono County line
Comment
UCR132141
Pelargonium grossularioides
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6578
San Luis Obispo
Irish Hills, Clark Valley Rd., 3.8 mi south of Los Osos Valley Rd., east of Los Osos
213
Comment
UCR140458
Pellaea andromedifolia
George K. Helmkamp
2004-4-21
8465
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCR171345
Penstemon
George K. Helmkamp, E. A. Helmkamp
2005-10-1
9986
Placer
Northern Sierra Nevada Mtns., NW of Lake Tahoe; Junction of Bear Creek Dr. and Big John Road (c. 2.2 miles west of Calif. Highway 89 and just south of Alpine Meadows Road)
2015
Comment
UCR194914
Penstemon azureus subsp. angustissimus
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12041
El Dorado
Northern Sierra Nevada Mountains Foothills, along CA-49 about 7 miles northwest of Placerville
488
Comment
SD241190
Penstemon azureus var. angustissimus
George K. Helmkamp, E. A. Helmkamp
2011-7-9
17683
Placer
Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 1.6 miles southeast of its junction with Foresthill Road (Foresthill 7.5'Q)
883
Comment
UCR257734
Penstemon azureus var. azureus
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19516
Placer
Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary
2136
Comment
UCR103995
Penstemon centranthifolius
George K. Helmkamp
1998-4-3
3073
Riverside
Sonoran (Colorado) Desert/San Jacinto Mtns., Snow Creek area north of Mt. San Jacinto; at edge of stream south of Snow Creek Rd at a point 1.4 mi. south of Calif. Hwy 111
396
Comment
UCR107340
Penstemon centranthifolius
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3635
Fresno
Coast Range, Warthan Creek Canyon, along Calif. Hwy 198, 27.6 mi. west of Interstate 5, west of Coalinga
457
Comment
CLARK-A1045-951
Penstemon grinnellii subsp. scrophularioides
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, 3 miles north of the Kern/Tulare County line; Kernville 7.5'Q
Comment
CLARK-A1045-1001
Penstemon incertus
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, 3 miles north of the Kern/Tulare County line; Kernville 7.5'Q
Comment
SD241192
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17913
El Dorado
Northern Sierra Nevada Mountains: Omo Ranch Road at the junction with North-South Road, 0.67 miles NW (300a^z) of junction with Hwy-88; 8.9 miles southeast of Omo Ranch Caldor 7.5'Q)
1456
Comment
UCR171230
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9708
El Dorado
Northern Sierra Nevada Foothills, Pollock Pines area just south of US Highway 50 along County Road #5
1159
Comment
UCR229580
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17913
El Dorado
Northern Sierra Nevada Mountains, Omo Ranch Road at the junction with North-South Road, 0.67 mi. NW (300 deg. ) of jct. with Hwy 88; 8.9 miles southeast of Omo Ranch
1457
Comment
CAS-BOT-BC245665
Penstemon newberryi var. newberryi
G. K. Helmkamp
2007-6-29
12414
Amador
Shot Rock Vista picnic area along CA-88, 0.9 miles east of its junction with Mormon Emigrant Trail, Bear River 7.5' Q., Northern Sierra Nevada Mountains
2328
Comment
UCR217860
Penstemon newberryi var. newberryi
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16463
El Dorado
Sierra Nevada Mountains, Silver Fork Road, 4.1 miles south of its junction with US-50 in Kyburz
1500
Comment
UCR206115
Penstemon roezlii
George K. Helmkamp, E. A. Helmkamp
2009-6-3
14898
El Dorado
Northern Sierra Nevada Mountains, Forbay Road, 4.7 miles northwest of its junction with Pony Express Trail in Pollock Pines
945
Comment
UCR121727
Penstemon rostriflorus
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5936
Mono
Sierra Nevada Mountains, McGee Creek Rd about 4 mi SW of US-395
2470
Comment
UCR129549
Penstemon rostriflorus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6827
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
RSA0039240
Penstemon rydbergii var. oreocharis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-7-10
21020
Amador
Plasse Road at the southern end of Silver Lake, off Hwy 88/Carson Pass Hwy
2191
Comment
UCR250341
Pentagramma pallida
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20368
Placer
Northern Sierra Nevada Mtns Foothills, Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 deg. ) of Weimar
512
Comment
UCR234576
Pentagramma triangularis subsp. triangularis
George K. Helmkamp, E. A. Helmkamp
2011-6-2
17452
Nevada
Northern Sierra Nevada Mountains Foothills, 2.25 miles SW (226 deg. ) of French Corral, along Pleasant Valley Road, 1.1 miles south of its crossing of the South Fork Yuba River
255
Comment
UCD127881
Perideridia lemmonii
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11002
El Dorado
Northern Sierra Nevada Mountains: Echo Summit along Hwy US-50; at entrance to the road maintenance station.
2245
Comment
UCR177864
Perideridia lemmonii
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11205
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring; Tragedy Spring Road, 0.3 mile north of Calif. Hwy 88
2424
Comment
UCR233323
Perideridia lemmonii
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18225
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
UCR235134
Perideridia lemmonii
George K. Helmkamp, William Barnes
2010-9-4
16935
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
UCR87845
Perideridia parishii
George K. Helmkamp, E. Helmkamp
1995-6-23
95- 6 -3
Alpine
Sierra Nevada Mtns, Calif. Hwy 89, 6.0 mi east of the junction with Calif. Hwy 4 on the way to Monitor Pass. Slope above Monitor Creek
2200
Comment
SD236164
Perideridia parishii subsp. latifolia
G. K. Helmkamp, E. A. Helmkamp
2008-7-16
13819
Alpine
Northern Sierra Nevada Mountains: Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR114382
Perideridia parishii subsp. latifolia
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2253
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCR176472
Perideridia parishii subsp. latifolia
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11185
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road
2250
Comment
SD224864
Perityle emoryi
G. K. Helmkamp
1998-2-5
2648
Riverside
Palm Springs, 1.1 mi. W of CA Hwy 111 on Tramway Rd.
334
Comment
UCR30076
Perityle emoryi
George K. Helmkamp
1983-4-5
483- 7
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
SD236379
Persicaria hydropiper
G. K. Helmkamp, E. A. Helmkamp
2006-10-10
11528
Yuba
Northern Sierra Nevada Mountains Foothills: along Hwy Ca-49 just north of Nevaday county line at the Middle Yuba River Bridge.
451
Comment
UCD99571
Persicaria maculosa
G. K. Helmkamp; E. A. Helmkamp
2007-8-29
12835
Yuba
Northern Sierra Nevada Mountains: along Hwy. CA-49, 0.5 mile south of Camptonville.
817
Comment
SEINET3245950
Petrorhagia dubia
G. K. Helmkamp, E. A. Helmkamp
2010-1
15934
Placer
Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5')
157
Comment
UCR217875
Petrorhagia dubia
George K. Helmkamp, Laurel Bezdecheck
2010-5-29
16130
El Dorado
Sierra Nevada Mountains Foothills, Slug Gulch Road, 2.9 miles east of its junction with Perry Creek road
1012
Comment
UCR231321
Petrorhagia dubia
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17207
Yuba
East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland
56
Comment
UCR250351
Petrorhagia dubia
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20357
Placer
Northern Sierra Nevada Mtns Foothills, Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 deg. ) of Weimar
512
Comment
UCR134403
Phacelia californica
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6597
San Luis Obispo
Irish Hills, Prefumo Cyn Rd., 2.8 miles west of Los Osos Valley Rd., SW of San Luis Obispo
91
Comment
CLARK-A1045-183
Phacelia cicutaria subsp. hispida
George K. Helmkamp
1979-5-5
Riverside
Santa Ana Mountains vernal pool; Wildomar 7.5'Q
Comment
SD148140
Phacelia cicutaria var. cicutaria
G. K. Helmkamp, E. A. Helmkamp
2001-4-27
6513
Kern
Tehachapi Mountains; Hart Flat turnoff from CA-58.
883
Comment
UCR207652
Phacelia cicutaria var. cicutaria
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14522
El Dorado
Sierra Nevada Mountains Foothills, junction of Rock Creek Road and CA-193, north of Chili Bar and the South Fork of the American River
390
Comment
SEINET269106
Phacelia cicutaria var. hubbyi
G. Helmkamp
1994-5-18
91 -9
San Luis Obispo
Alamo Cyn 7 mi E of US-101 on CA-166 then 4 mi N (generally NE of Twitchell reservoir).
213
Comment
UCR104821
Phacelia crenulata var. ambigua
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2663
Riverside
Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd.
101
Comment
UCR104872
Phacelia crenulata var. ambigua
George K. Helmkamp
1998-3-30
3038
San Bernardino
Mojave Desert, vicinity of Twentynine Palms; Encelia Ave., 1.0 mi. north of Calif. Hwy 62
793
Comment
SD167101
Phacelia distans
G. K. Helmkamp, E. A. Helmkamp
2005-4-16
9339
Santa Barbara
Outer South Coast Range; Sierra Madre Mountains, 1.1 miles south of Highway CA 166 on Miranda Pines Road.
526
Comment
SEINET1109556
Phacelia distans
G. K. Helmkamp, E. A. Helmkamp
2005-1
9339
Santa Barbara
Outer South Coast Range: Sierra Madre Mountains, 1.1 mi S of Hwy CA-166 on Miranda Pines Road.
526
Comment
UCD120404
Phacelia distans
G. K. Helmkamp; E. A. Helmkamp
2001-3-30
6392
San Bernardino
Mojave Desert: CA-62, 16.2 mi E of Utah Trail (29 Palms) near Dale Lake.
Comment
UCR121773
Phacelia douglasii
George K. Helmkamp
2002-4-20
7463
San Luis Obispo
Central Coast, Los Osos, 0.2 mile northwest of Monarch Lane
9
Comment
CLARK-A1045-250
Phacelia fremontii
George K. Helmkamp
1978-3-14
San Bernardino
Mojave Desert north of Victorville; creosote bush scrub; Hodge 7.5'Q
Comment
RSA519133
Phacelia frigida subsp. frigida
George K. Helmkamp
1990-8-2
s.n.
Mono
Between Mammoth and Lake Mary.
2591
Comment
UCR233268
Phacelia hastata var. compacta
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17998
Amador
Northern Sierra Nevada Mountains, Ellis Road, 0.2 miles south of its junction with CA-88
2009
Comment
UCR251254
Phacelia hastata var. hastata
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19329
El Dorado
Northern Sierra Nevada Mountains, Ice House Road at Ice House village, 10.5 miles north of its junction with US-50
1677
Comment
UCR15550
Phacelia humilis
George K. Helmkamp
1978-5-30
s.n.
Mono
Along the E Walker River 5 mi south of Nevada
1930
Comment
UCD120547
Phacelia hydrophylloides
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11150
Alpine
Northern Sierra Nevada Mountains: Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake.
2509
Comment
UCR175658
Phacelia hydrophylloides
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10811
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 3.2 miles north of Hwy US-50, northeast of Kyburz
1982
Comment
UCR257753
Phacelia hydrophylloides
George K. Helmkamp, Amy Barnes
2012-8-12
19592
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.8 mile SE of its junction with CA-88 and beside Woods Creek
2286
Comment
SD146239
Phacelia marcescens
G. K. Helmkamp
1999-6-30
5103
Nevada
Northern Sierra Nevada Range: Truckee, 1-2 miles east of Donner Lake.
1540
Comment
CAS-BOT-BC167231
Phacelia mutabilis
G. K. Helmkamp; E. A. Helmkamp
2009-6-29
15060
El Dorado
Sierra Nevada Mountains Foothills: Ice House Road, 0.2 miles north of its junction with CA-50, c. 7.3 miles ENE (83 deg. ) of Pollock Pines
989
Comment
UCD120631
Phacelia mutabilis
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-5-31
10570
El Dorado
Northern Sierra Nevada: along Hwy US-50, 7.2 miles east of Ice House Canyon Road.
1162
Comment
UCR197550
Phacelia mutabilis
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13706
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 0.7 mile southeast of Leek Spring
2268
Comment
UCR206998
Phacelia mutabilis
George K. Helmkamp, Amy Barnes
2009-7-8
15154
El Dorado
Sierra Nevada Mountains, Wrights Lake Road, 0.4 mile east of its junction with Ice House Road, about 1.3 miles north of Ice House
1654
Comment
UCR99897
Phacelia ramosissima var. subglabra
George K. Helmkamp
1997-9-30
2505
Inyo
Sierra Nevada Mtns., Big Pine Creek
2287
Comment
RSA667124
Phacelia tanacetifolia
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6558
Kern
Temblor Range: CA-58, 1.1 mi SW of the San Luis Obispo Co. line.
793
Comment
SEINET10593163
Phalaris minor
George K. Helmkamp
1996-3-11
Helmkamp 1000
Unknown
Edge of cultivated field at 35th Ave and CA-78, 1.7 mi north of Palo Verde. Common weed where watering occured.
91
Comment
UCR233054
Phalaris paradoxa
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17266
Sutter
Sacramento Valley, Howsley Road at CA-99/El Centro Blvd., 3.3 miles west of Pleasant Grove
30
Comment
UCR174933
Philadelphus lewisii
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10777
Calaveras
Northern Sierra Nevada foothills, along Calif. Hwy 26, 12.3 miles east of the Mokelumne Hill turnoff from Calif. Hwy 49
640
Comment
UCR102587
Phleum alpinum
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2394
Alpine
Sierra Nevada Mountains, 0.2 mi northwest of Sonora Pass along CA Hwy 108
2912
Comment
UCR188480
Phleum alpinum
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12524
Amador
Northern Sierra Nevada Mountains, along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake
2317
Comment
UCR170813
Phleum pratense
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9944
Placer
Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area)
2081
Comment
UCR241720
Phleum pratense
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19924
Placer
Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road
1611
Comment
UCD118300
Phlox condensata
G. K. Helmkamp
2007-7-7
12493
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 0.2 mile south of its junction with CA-88.
2200
Comment
UCR121451
Phlox diffusa
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5076
Nevada
Northern Sierra Nevada Range, Tahoe Nat. Forest, Donner Pass Rd. (=Hwy 40), 2.2 mi. west of Lake Donner.
1997
Comment
CLARK-A1045-1100
Phlox dispersa
George K. Helmkamp
1977-7-3
Mono
Sierra Nevada ; Tioga Pass 7.5'Q
3291
Comment
RSA772289
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15902
Placer
along CA-49, 2.5 miles southeast of Pilot Hill
271
Comment
UCR87503
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
25.6 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR237350
Phlox speciosa subsp. occidentalis
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19161
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 2.6 miles north of its junction with CA-20
1088
Comment
UCR13864
Phlox stansburyi var. brevifolia
George K. Helmkamp
1973-6-14
s.n.
Mono
Owens Valley, Owens River at Benton Crossing, just north of Crowley Lake
2134
Comment
UCR13865
Phlox stansburyi var. brevifolia
George K. Helmkamp
1973-6-13
s.n.
Inyo
Owens Valley, Owens River near Pleasant Valley
1372
Comment
UCR61760
Pholistoma auritum
George K. Helmkamp
1990-4-1
s.n.
San Luis Obispo
West Cuesta Ridge, c. 3 mi west of US Hwy 101
671
Comment
UCR161464
Pholistoma auritum var. auritum
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9025
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness N of Lopez Lake, Upper Lopez Canyon Road, 5.5 mi N of jct with Lopez Road
335
Comment
RSA628439
Pholistoma membranaceum
George K. Helmkamp, E. A. Helmkamp
1999-2-26
4634
San Diego
Chula Vista: Border State Park near the Pacific Ocean and Mexico.
6
Comment
UCD120927
Pholistoma membranaceum
G. K. Helmkamp; E. A. Helmkamp
2001-4-27
6553
Kern
Kern County; Temblor Range, CA-58, 1.1 mi SW of the San Luis Obispo Co. line.
792
Comment
UCR130084
Pholistoma membranaceum
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5560
Monterey
Inner South Coast Ranges, Salinas Valley, 6 miles south of King City and 0.6 mile east of G-14 (Jolon Rd) on San Lucas Rd.
183
Comment
UCR41586
Pholistoma membranaceum
George K. Helmkamp
1986-3-8
726
San Bernardino
Little San Bernardino Mtns/Southern Mojave Desert, S of Morongo Valley. Big Morongo Preserve, 1.5 mi. downstream from Kiosk.
671
Comment
UCR136214
Phoradendron villosum
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5309
San Bernardino
East side San Bernardino Mountains., 7.3 mi up Burns cyn Rd from Rimrock Rd (NW of Pioneertown)
1799
Comment
UCR170461
Phoradendron villosum
George K. Helmkamp, Elizabeth Helmkamp
2005-10-29
10013
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento; c. 5 air mi NNE of Placerville], 5.1 [road] mi east of Calif. Highway 193 along Rock Creek Road
451
Comment
UCR233332
Phoradendron villosum
George K. Helmkamp, E. A. Helmkamp
2011-3-29
17112
Calaveras
Eastern San Joaquin Valley, Oak Grove, along CA-26, at the junction with Josephine Lane, c. 0.5 mile southwest of Jenny Lind Road
117
Comment
UCR89109
Phoradendron villosum
George K. Helmkamp
1995-10-28
1- 01
San Bernardino
San Bernardino Mtns, 3.5 mi. NW of Rimrock, Burns Cyn. Rd.
1673
Comment
UCR201569
Physalis lancifolia
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14270
Colusa
Sacramento Valley, along CA-20, 2 miles west of Meridian
14
Comment
UCR231865
Physocarpus capitatus
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17030
Placer
Northern Sierra Nevada Mountains Foothills, along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine Reservoir dam
1180
Comment
UCR59826
Picris echioides
George K. Helmkamp
1989-8-6
s.n.
San Luis Obispo
Central Coast, Baywood Park, at the south edge of Morro Bay
3
Comment
UCR261992
Pinus contorta subsp. murrayana
George K. Helmkamp, Amy Barnes
2014-10-10
23150
Amador
Northern Sierra Nevada Mountains, Plasse Road at the south end of Silver Lake and 0.1 mile north of Plasse's Resort
2215
Comment
UCR206703
Pinus ponderosa
George K. Helmkamp, E. A. Helmkamp
2009-3-19
14435
El Dorado
Sierra Nevada Mtns. Foothills, Meadow Brook Road, 1.3 miles east of CA-193 and at the junction with Bear Creek Rd
680
Comment
UCD135020
Pinus sabiniana
G. K. Helmkamp; E. A. Helmkamp
2007-9-17
12975
Yolo
West edge of Sacramento Valley: Capay Valley, Brick Chimney Canyon; along County Road-78A, 2.4 miles southwest of its junction with CA-16 and about 3 miles west of Capay.
113
Comment
UCR232228
Plagiobothrys fulvus
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17212
Yuba
Eastern edge of Sacramento Valley, Camp Far West Road, 1.3 miles southeast of its junction with Spenceville Road, 5.25 mi. NE (52 deg. ) of Wheatland
62
Comment
SEINET13203115
Plagiobothrys fulvus var. campestris
George K. Helmkamp
2014-1
22742
Nevada
Northern Sierra Nevada Mountains Foothills: along CA-120, 2.3 miles west of its junction with CA-49 in Grass Valley (Grass Valley 7.5' Q.)
728
Comment
UCR253548
Plagiobothrys greenei
George K. Helmkamp, Amy Barnes
2014-4-7
22693
Sacramento
Sacramento Valley, along CA-104/Twin Cities Rd., 0.7 mile west of the Amador County line
63
Comment
UCR88316
Plagiobothrys hispidus
George K. Helmkamp
1995-9-23
3- 01
Alpine
Sierra Nevada Mtns, west side of Sonora Pass, just beyond the Mono County line
2927
Comment
UCR232272
Plagiobothrys humistratus
George K. Helmkamp, E. A. Helmkamp
2011-3-29
17103
San Joaquin
San Joaquin Valley, along CA-26 at the junction with Ospital/N Wimer Road, c. 0.3 mile southwest of the Calaveras County line, 9.1 miles NE (56 deg. ) of Linden
72
Comment
SD236239
Plagiobothrys nothofulvus
G. K. Helmkamp, E. A. Helmkamp
2008-3-18
13191
Calaveras
Sierra Nevada Mountains Foothills: Jesus Maria Road, 3.2 miles southeast of its juncction with CA-26; beside Jesus Maria Creek (Mokelumne Hill 7.5'Q)
319
Comment
UCR130226
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6529
Kern
Tehachapi Mtns., Western Foothills, Calif. Hwy 223 (Bear Mtn. Blvd.), 7.2 mi east of Arvin
366
Comment
UCR173638
Plagiobothrys nothofulvus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-7
10160
Amador
Northern Sierra Nevada Foothills, E of Sacramento, SW of Shenandoah Valley; along Calif. Hwy 49, c. 4.5 mi north of Plymouth
341
Comment
UCR250676
Plagiobothrys nothofulvus
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20410
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 1.9 miles east of its junction with CA-26 in West Point
652
Comment
UCR253528
Plagiobothrys shastensis
George K. Helmkamp, Amy Barnes
2014-4-23
22792
Placer
Sierra Nevada Mountains Foothills, Old Auburn-Foresthill Road, 1.7 miles northeast of its junction with CA-49 at North Fork American River
407
Comment
SEINET13203148
Plagiobothrys stipitatus var. micranthus
George K. Helmkamp, Amy Barnes
2013-1
20250
Yuba
Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road (Olivehurst 7.5' Q.)
30
Comment
UCR258235
Plagiobothrys stipitatus var. micranthus
George K. Helmkamp, Amy Barnes
2013-3-28
20250
Yuba
Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road
30
Comment
UCR158389
Plantago coronopus
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8658
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR159243
Plantago coronopus
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8730
Santa Barbara
Central Coast, between Ocean Park [Rd.] and Pacific Ocean at Surf; NW of Lompoc
15
Comment
SD248467
Plantago erecta
George K. Helmkamp
2013-3-14
20186
Calaveras
San Joaquin Valley/Sierra Nevada Foothills: Jenny Lind Road (County Road J14) 0.1 mile north of its junction with Kirby Road, 24 miles NE of Stockton (Valley Springs 7.5'Q)
91
Comment
UCR140412
Plantago erecta
George K. Helmkamp
2004-2-19
8306
San Luis Obispo
Central Coast, NW of Nipomo, Pomeroy Rd, 0.2 mi N of Willow Rd.
91
Comment
UCR163789
Plantago erecta
George K. Helmkamp, E. A. Helmkamp
2005-3-31
9294
Santa Barbara
Outer South Coast Ranges, San Rafael Mountains. National Forest Boundary along Figueroa Mountain Road NE of Los Olivos
701
Comment
UCR173673
Plantago erecta
George K. Helmkamp, Elizabeth Helmkamp
2006-4-7
10175
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento, between N and Middle Forks of the Cosumnes River; Sand Ridge Road, 3.1 mi. east of Calif. Hwy 49
534
Comment
UCR237083
Plantago erecta
George K. Helmkamp, E. A. Helmkamp
2012-4-24
18832
El Dorado
Northern Sierra Nevada Mountains Foothills, Bear Creek Road, 0.4 mile south of its junction with Meadow Brook Road, 2.5 miles NE (66 deg. ) of Garden Valley
705
Comment
CLARK-A1045-277
Plantago insularis
George K. Helmkamp
1978-3-24
San Bernardino
Cady Mountains Cave Mt. 15'Q
Comment
CAS-BOT-BC516752
Plantago lanceolata
George K. Helmkamp; Amy Barnes
2013-3-28
20295
Placer
Eastern Sacramento Valley: NW side of jct of Riosa Rd and Andressen Rd, NE of Sheridan
36
Comment
CDA36229
Plantago lanceolata
G. K. Helmkamp, E. A. Helmkamp
2009-9-22
15638
Amador
Sierra Nevada Mountains Foothills; Junction of Shenandoah Road (CA Hwy 16) and Steiner Road, southwest of River Pines.
Comment
UCD124589
Plantago lanceolata
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13025
Sutter
Central Valley; Sacramento Valley: American Basin, junction of Sankey Road and CA-99, 2.0 miles north of the Sacramento Co. line.
3
Comment
UCR233004
Plantago major
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18332
El Dorado
Northern Sierra Nevada Mountains, Wentworth Springs Road at the junction with South Creek Road, 4.0 miles north of the Wentworth Springs/Loon Lake junction
1750
Comment
UCR103667
Plantago ovata
George K. Helmkamp, E. Helmkamp
1998-1-24
2572
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the jct of Calif. Hwy 98 with Hwy I-8)
46
Comment
UCR122606
Plantago ovata
George K. Helmkamp, E. A. Helmkamp
2001-3-17
6280
Imperial
Sonoran (Colorado) Desert, Ogilby Rd., 15.4 miles south of Calif. Hwy 78
168
Comment
UCR196777
Platanthera leucostachys
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13894
Alpine
Eastern Sierra Nevada Mountains, Carson River road, 0.4 mile east of its west junction with CA-88
1713
Comment
RSA749531
Platanus X acerifolia
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14220
Sutter
Pass Road, south side of Sutter Buttes, 4.7 miles west of Sutter
56
Comment Read comments May 5 2014
UCR121603
Plectritis brachystemon
George K. Helmkamp, E. A. Helmkamp
2002-4-22
7602
San Benito
San Andreas rift zone, Rabbit Valley, along Calif. Hwy 25; 23.7 mi north of Calif. Hwy 198
549
Comment
UCR197413
Plectritis brachystemon
George K. Helmkamp, E. A. Helmkamp
2008-3-18
13198
Calaveras
Sierra Nevada Mountains Foothills, along CA-49 at the crossing of the North Fork of the Calaveras river; 8.3 miles south of Mokelumne Hill
235
Comment
UCR256502
Plectritis brachystemon
George K. Helmkamp, Amy Barnes
2014-5-8
22857
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 0.2 mile east of old CA-49 in town of Sutter Creek
375
Comment
SD241205
Plectritis ciliosa
George K. Helmkamp, E. A. Helmkamp
2012-4-21
18820
Nevada
Northern Sierra Nevada Mountains Foothills: McCourtney Road, 0.4 mile east of its junction with Perimeter Road, 14.5 miles NW (338a^z) Of Auburn (Wolf 7.5'Q)
406
Comment
UCD137539
Plectritis congesta subsp. brachystemon
G. K. Helmkamp; E. A. Helmkamp
2000-4-20
5385
San Luis Obispo
San Luis Obispo County: Central Coast Prefumo Cyn., 1.2 mi south of Los Osos Valley Rd.
183
Comment
RSA747032
Plectritis macrocera
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11966
El Dorado
Pedro Hills Road, 0.5 mile west of its junction with Calif. Hwy 49, junction of roads 5.3 miles south of Cool
311
Comment
UCR238450
Poa annua
George K. Helmkamp, E. A. Helmkamp
2012-4-4
18686
Calaveras
Northern San Joaquin Valley, along CA-26, 0.1 mile west of its junction with Milton Road, between Linden & Valley Springs
67
Comment
UCR249137
Poa annua
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20755
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.2 miles north of the Yuba County line
901
Comment
UCR122393
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7504
Madera
Western Sierra Nevada foothills, Bass Lake Road, 1 mile southeast of the junction with CA Hwy 41, north of Oakhurst
915
Comment
UCR238607
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2012-3-22
18641
Amador
Northern Sierra Nevada Mountains Foothills, Bell Road, 0.2 mile east of its junction with CA-49
270
Comment
UCR190567
Poa cusickii
George K. Helmkamp
2007-6-29
12438
Amador
Northern Sierra Nevada Mountains, Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
UCR237719
Poa leptocoma subsp. leptocoma
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19388
Amador
Northern Sierra Nevada Mountains, edge of Martin Meadow along CA-88 (Carson Pass Hwy), 2.2 miles north of Silver Lake
2317
Comment
UCR237143
Poa pratensis subsp. pratensis
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19415
Amador
Northern Sierra Nevada Mountains, Tragedy Spring, near Carson Pass Hwy, along Tragedy Spring Road 0.3 mile east of its junction with CA-88
2421
Comment
RSA424885A
Poa secunda
George K. Helmkamp
1987-6-17
s.n.
Mono
Campground at canyon, W base of Glass mountain. 5 mi. E of Owens River.
2256
Comment
SEINET3821902
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2012-5-18
19002
El Dorado
Northern Sierra Nevada Mountains, junction of Bonnetti Road (Capps Crossing Rd.) and Mormon Emigrant Trail, east of Jenkinson Lake (Sly Park 7.5' Q)
1260
Comment
UCR121713
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2001-4-26
6491
Kern
Eastern Tehachapi Mtns Foothills, Tehachapi Willow Springs Rd., 2.2 mi south of Highline Rd.
1372
Comment
UCR163785
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2005-3-31
9290
Santa Barbara
Outer South Coast Ranges, San Rafael Mountains. Figueroa Mountain lookout area NE of Los Olivos.
1372
Comment
UCR237030
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2012-5-18
19017
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 0.1 mile east of Pebble Canyon Road, SE of Pollock Pines, S of US Hwy 50
1495
Comment
UCD92367
Poa secunda subsp. juncifolia
G. K. Helmkamp; E. A. Helmkamp
2007-6-6
12260
Amador
Northern Sierra Nevada Mountains. Along Mormon Emigrant Trail, 8.3 miles E of its junction with Sly Park Road.
1616
Comment
UCR172667
Poa secunda subsp. juncifolia
George K. Helmkamp, Elizabeth Helmkamp
2006-4-13
10181
El Dorado
Northern Sierra Nevada Foothills, El Dorado National Forest, Along Calif. Hwy 193, just N of Kelsey, south of Gopher Hill
610
Comment
SEINET244319
Poa secunda var. secunda
G. K. Helmkamp, E. A. Helmkamp
2002-4-15
7360
Santa Barbara
Sierra Madre Mountains; Miranda Pind Rd., 1.0 mi SE of CA-166
549
Comment
UCR176481
Polemonium californicum
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11145
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
SEINET4691427
Polygala cornuta
George K. Helmkamp, E. A. Helmkamp
2012-1
19216
Placer
Northern Sierra Nevada Mountains Foothills: Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill.
1052
Comment
CDA7123
Polygonum arenastrum
G. K. Helmkamp, E. A. Helmkamp
2006-10-1
11511
Nevada
Northern Sierra Nevada Mountains Foothills; Along Highway CA-49, 10.4 miles north of the crossing of the South Yuba River.
Comment
SD247488
Polygonum aviculare
George K. Helmkamp, Elizabeth Helmkamp
2012-9-7
22281
Amador
Northern Sierra Nevada Mountains: on the south side of CA-88/Carson Pass Hwy, c. 0.3 mile west of the junction with Bear River Reservoir Road (Peddler Hill 7.5'Q)
1933
Comment
SEINET3856758
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17036
Sutter
Sacramento Valley: Pleasant Grove Road 0.1 mile N of the junction with Marcum Road, S of Nicolaus Ave., 2 miles SE of Trowbridge
17
Comment
SEINET998808
Polygonum aviculare
G. K. Helmkamp, E. A. Helmkamp
2006-1
11565
Amador
Central Valley/Northern Sierra Nevada Foothills: Along CA-16 0.2 miles east of Waits Station, southwest od Plymouth (Irish Hill 7.5' Q)
305
Comment
UCR161249
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2005-1-1
8876
Santa Barbara
Central Coast, N side Casmalia Hills, Corallitos Canyon along Brown Road, 3.5 mi west of Calif. highway 1.
146
Comment
UCR171407
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9679
El Dorado
Northern Sierra Nevada Foothills, Cameron Park (E of Sacramento, along US Highway 50); corner of Santos Street and Santos Court Road
370
Comment
UCR190635
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2007-9-19
12988
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Lost Creek Road and French Creek Road just north of Frenchtown
366
Comment
UCR256642
Polygonum aviculare
George K. Helmkamp, Elizabeth Helmkamp
2013-10-10
22394
Nevada
Sierra Nevada Mountains Foothills, junction of Combie Road and Timber Ridge Dr. southeast of Higgins Corner near Lake of the Pines
456
Comment
UCD100023
Polygonum aviculare subsp. depressum
G. K. Helmkamp; E. A. Helmkamp
2006-10-23
11565
Amador
Central Valley/Northern Sierra Nevada Mountains Foothills: along Hwy. CA-16, 0.2 mile east of Waits Station, southwest of Plymouth.
305
Comment
UCD100034
Polygonum aviculare subsp. depressum
G. K. Helmkamp; E. A. Helmkamp
2007-9-11
12933
El Dorado
Northern Sierra Nevada Mountains Foothills: Along Hwy US-50, 0.4 mile southwest of Phillips.
1829
Comment
UCD100043
Polygonum aviculare subsp. depressum
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13037
Sutter
Sacramento Valley: Sutter Buttes, 2.3 miles northwest of Sutter on Pass Road.
3
Comment
RSA0049891
Polygonum bistortoides
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19356
El Dorado
Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50.
2078
Comment
UCR206587
Polygonum douglasii subsp. douglasii
George K. Helmkamp, Ann Kerchner
2009-7-25
15288
Amador
Sierra Nevada Mountains, south side of CA-88, 3.2 miles west of the Alpine Co. line; near Martin Meadow
2306
Comment
UCR161967
Polygonum fagopyrum
George K. Helmkamp, E. A. Helmkamp
2005-2-9
8894
Santa Barbara
Outer South Coast Ranges, south edge of Sierra Madre Mtns north of Sisquoc; 1.6 mi north of Foxen Canyon Road along Tepusquet Road
171
Comment
UCR241972
Polygonum hydropiperoides
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19775
Amador
Northern Sierra Nevada Mountains Foothills, along CA-49 in Plymouth; 0.1 mile south of its junction with Fiddletown Rd./Plymouth-Shenandoah Rd.
303
Comment
UCR219100
Polygonum lapathifolium
George K. Helmkamp, E. A. Helmkamp
2009-9-5
15604
Butte
Sacramento Valley, Honcut, on Palermo-Honcut Highway, 0.1 mile north of Lower Honcut Road
35
Comment
SD241152
Polygonum minimum
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18261
El Dorado
Northern Sierra Nevada Mountains: Foster Meadow Road, 0.6 miles north of its junction with CA-88 (Bear River Reservoir 7.5'Q)
2136
Comment
UCR88212
Polygonum polygaloides subsp. kelloggii
George K. Helmkamp
1995-9-23
3- 29
Alpine
Sierra Nevada Mtns, west side of Sonora Pass, just beyond the Mono County line
2927
Comment
UCR231098
Polygonum punctatum
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18271
Calaveras
Northern Sierra Nevada Mountains Foothills, Bald Mountain Road, 1.5 miles SW of Hunter Creek crossing, 7.3 miles NE of the junction of Blue Mountain Rd and Rail Road Flat Rd
1037
Comment
UCD136975
Polypodium calirhiza
G. K. Helmkamp; E. A. Helmkamp
2006-3-26
10115
El Dorado
Northern Sierra Nevada Foothills: ENE of Sacramento; Rock Creek Road at Jaybird Creek, 5.1 mi E of CA Highway 193 (generally ENE of Chili Bar).
590
Comment
UCR193282
Polystichum imbricans
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12173
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill
588
Comment
UCR197540
Populus fremontii subsp. fremontii
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13233
Calaveras
San Joaquin Valley / Sierra Nevada Mountains Foothills, along Farris Road, 0.2 mile southeast of CA-26, 5.7 miles southwest of Valley Springs
142
Comment
SD232587
Potamogeton natans
George Helmkamp
1996-9-21
1194 B
San Luis Obispo
Santa Margarita Lake.
395
Comment
UCR218268
Potentilla drummondii subsp. drummondii
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16595
El Dorado
Northern Sierra Nevada Mountains, trailhead at the east end of Wright's Lake, 1.2 miles north of the visitor's center at the lake entrance
2127
Comment
SEINET4178513
Potentilla glandulosa
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16692
Calaveras
Northern Sierra Nevada Mountains: along CA-4. 0.8 mile southwest of the junction with Forest Route 7N23/Black Creek Rd., NE of Dorrington.
1854
Comment
UCR173450
Potentilla glandulosa
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10374
Nevada
Northern Sierra Nevada Mtns., Cedarsong Road, 0.1 mi. NE of Calif. Hwy 49 (NW of Nevada City)
637
Comment
RSA779394
Potentilla glandulosa subsp. ashlandica
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15082
El Dorado
Ice House Road, 8.2 miles north of its junction with CA-50, c. 10.5 air miles NE (73 deg.) of Pollock Pines
1646
Comment
UCR197620
Potentilla glandulosa subsp. glandulosa
George K. Helmkamp, E. A. Helmkamp
2008-5-29
13529
Calaveras
Sierra Nevada Mountains, along the north side of CA-4 (Ebbetts Pass Rd.) at Avery
1024
Comment
UCR218285
Potentilla glandulosa subsp. nevadensis
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16480
El Dorado
Northern Sierra Nevada Mountains, Light Canyon Road, 0.1 mile north of its junction with Mormon Emigrant Trail (Iron Mountain Rd.), 20.5 mi. ESE (99 deg. ) of Placerville
1831
Comment
UCR88321
Potentilla glandulosa subsp. nevadensis
George K. Helmkamp
1995-9-23
3- 26
Alpine
Sierra Nevada Mtns, west side of Sonora Pass, just beyond the Mono County line
2927
Comment
RSA0049895
Potentilla glandulosa subsp. reflexa
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19360
El Dorado
Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50.
2078
Comment
UCR240936
Potentilla glandulosa subsp. reflexa
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19284
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 8.0 miles south of its junction with CA-88, along East Panther Creek
1345
Comment
UCR13877
Potentilla gracilis
George K. Helmkamp
1973-6-14
s.n.
Mono
Owens Valley, Owens River at and near Big Springs
2195
Comment
UCD113908
Potentilla gracilis var. fastigiata
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11200
El Dorado
Northern Sierra Nevada Mtns: Tragedy Spring; Tragedy Spring Road, 0.3 mile north of Hwy CA-88.
2424
Comment
UCD113912
Potentilla gracilis var. fastigiata
G. K. Helmkamp
2007-7-7
12472
El Dorado
Northern Sierra Nevada Mtns: along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area.
2338
Comment
UCD113914
Potentilla gracilis var. fastigiata
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12528
Amador
Northern Sierra Nevada Mtns: along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake.
2317
Comment
UCR229457
Potentilla gracilis var. fastigiata
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17895
Placer
Northern Sierra Nevada Mountains, Bowman Lake Road, 0.9 mile north of its junction with CA Hwy 20, 0.85 mi. NE (23 deg. ) of Emigrant Gap and N of I-80
1434
Comment
UCR231866
Prunella vulgaris var. lanceolata
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17029
Placer
Northern Sierra Nevada Mountains Foothills, along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine Reservoir dam
1180
Comment
RSA748730
Prunus emarginata
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13931
El Dorado
Wright's Lake Road, 3.8 miles north of its junction with CA-50.
2076
Comment
SD243196
Prunus emarginata
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16902
El Dorado
Northern Sierra Nevada Mountains: Mehrten Springs Road, 0.6 mile north of its junction with CA-88. Seep and roadside bank.
2018
Comment
SEINET7356567
Prunus emarginata
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10545
El Dorado
Northern Sierra Nevada Mountains: El Dorado National Forest; S of Union Valley Reservoir, ca. 2 (air mi. N of US Hwy 50); junction of Ice House Canyon Road and Granite Springs Road (Riverton 7.5' Q.: Near 381/447'56'N, 1201/423'49'W).; 0
1610
Comment
CLARK-A1045-109
Prunus fremontii
George K. Helmkamp
1977-3-20
Riverside
Pinyon Pines area above west edge of Deep Canyon; Palm Desert 15'Q
Comment
UCR13826A
Psathyrotes annua
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
Comment
CAS-BOT-BC356344
Psathyrotes ramosissima
G. Helmkamp; E. Helmkamp
1998-1-17
2534
Riverside
Box Canyon northeast of Mecca and 3.5 miles south of Shaver's Well
243
Comment
UCD135082
Pseudognaphalium luteoalbum
G. K. Helmkamp; E. A. Helmkamp
2007-8-29
12833
Yuba
Northern Sierra Nevada Mountains: along Hwy CA-49, 0.5 mile south of Camptonville.
817
Comment
UCD135245
Pseudognaphalium thermale
G. K. Helmkamp; E. A. Helmkamp
2007-8-9
12724
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake; south side of the lake at the entrance to the campground.
2131
Comment
UCR218286
Pseudostellaria jamesiana
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16479
El Dorado
Northern Sierra Nevada Mountains, Light Canyon Road, 0.1 mile north of its junction with Mormon Emigrant Trail (Iron Mountain Rd.), 20.5 mi. ESE (99 deg. ) of Placerville
1831
Comment
UCR229413
Pseudostellaria jamesiana
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18092
Alpine
Northern Sierra Nevada Mountains, unnamed dirt road on the east side of CA-4 and about 0.1 mile northeast of the Calaveras Co. line, near Bear Valley
2165
Comment
SD240762
Pseudotsuga menziesii var. menziesii
G. K. Helmkamp, E. A. Helmkamp
2008-4-28
13342
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail near Old Iron Mountain, 6 miles east of its junction with Sly Park Road (Old Iron Mountain 7.5'Q)
1451
Comment
UCR184370
Pseudotsuga menziesii var. menziesii
George K. Helmkamp, E. A. Helmkamp
2007-2-24
11590
El Dorado
Foothills, Northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park, Pleasant Valley Road and Patterson Dr., east end of Diamond Springs
537
Comment
CLARK-A1045-174
Psilocarphus brevissimus
George K. Helmkamp
1979-4-27
Riverside
Santa Ana Mountains along road; drying mud of vernal pools; Wildomar 7.5'Q
Comment
UCR216923
Psilocarphus brevissimus
George K. Helmkamp, E. A. Helmkamp
2010-5-4
15954 B
Solano
Sacramento Valley, 6.5 air mi NNW of Vacaville, Pleasants Valley Road, 6.1 miles north of its junction with Vaca Valley Road
78
Comment
CLARK-A1045-106
Psoralea californica
George K. Helmkamp
1978-5-20
Riverside
Pinyon Flats Campground southwest 1/4 Palm Desert 15'Q
Comment
UCR13823
Psorothamnus polydenius
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
Comment
UCR130050
Psorothamnus spinosus
George K. Helmkamp, E. A. Helmkamp
1998-6-27
4106
Riverside
Coachella Valley., Along Calif. Hwy 74 at the south end of Palm Desert
290
Comment
SEINET9261503
Pteridium aquilinum subsp. pubescens
George K. Helmkamp, Amy Barnes
2013-1
22319
Alpine
Northern Sierra Nevada Mountains: northern edge of Mosquito Lake along CA-4/Ebbetts Pass road (Pacific Valley 7.5' Q)
2454
Comment
SD240771
Pteridium aquilinum var. pubescens
G. K. Helmkamp, E. A. Helmkamp
2009-6-10
14936
Shasta
Southern Cascade Range: Alvord Road, 0.2 mile south of its junction with CA-44, junction is 1.1 miles east of Shingletown (Shingletown 7.5'Q)
938
Comment
UCR170347
Pteridium aquilinum var. pubescens
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9895
El Dorado
Northern Sierra Nevada Foothills, Wright's Lake Road (Forest Road 4) 2.1 road miles N of US Highway 50 (c. 5-6 mi east of Kyburz)
1854
Comment
UCR219636
Pteridium aquilinum var. pubescens
George K. Helmkamp, E. A. Helmkamp
2009-10-22
15699
El Dorado
Sierra Nevada Mountains Foothills, Pollock Pines, Blair Road just south of its junction with Forebay Road
1125
Comment
RSA757001
Pterospora andromedea
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15327
Calaveras
Ganns Meadow Drive just south of its junction with CA-4, 16.7 miles northeast of Arnold
2067
Comment
UCR207431
Pterospora andromedea
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15327
Calaveras
Sierra Nevada Mountains, Ganns Meadow Drive just south of its junction with CA-4, 16.7 miles northeast of Arnold
2067
Comment
UCR91694
Pterostegia drymarioides
George K. Helmkamp
1996-5-25
1058
San Luis Obispo
Central Coast, between CA Hwy 1 and the ocean, 1.5 miles north of Piedras Blancas lighthouse near the northern border of the county
15
Comment
UCR67020
Pteryxia terebinthina
George K. Helmkamp
1990-8-2
s.n.
Mono
Eastern Sierra Nevada Mountains, between Mammoth and Lake Mary
2591
Comment
CLARK-A1045-691
Purshia glandulosa
George K. Helmkamp
1977-5-15
San Bernardino
Mojave Desert Kelso [Cima?] Road; Kelso 15' Q
Comment
UCR79300
Purshia glandulosa
George K. Helmkamp
1993-9-22
32- 02
San Bernardino
San Bernardino Mtns./Mojave Desert, 5.9 mi up Burns Canyon from crossing of Pioneertown and Pipes Canyon Roads
1585
Comment
UCR103834
Pyrrocoma lanceolata
George K. Helmkamp, E. A. Helmkamp
1997-9-10
2347
Mono
Eastern Sierra/ Great Basin, River Spring Lakes, 3.1 mi. NE of Calif. Hwy 120 on River Springs Rd
1979
Comment
UCR133161
Pyrrocoma uniflora
George K. Helmkamp
1993-10-7
40- 04
Mono
Owens Valley, beside Owens River, 3 miles upstream from Benton's Crossing
2165
Comment
CAS-BOT-BC62722
Quercus chrysolepis
G. K. Helmkamp; E. A. Helmkamp
2008-5-4
13384
Amador
Sierra Nevada Mountains Foothills: along Tiger Creek Road, 2.8 miles east of CA-88; at the entrance to
744
Comment
UCD63219
Quercus douglasii
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13039
Sutter
Sacramento Valley. Sutter Buttes, 2.3 miles NW of Sutter on Pass Road.
70
Comment
SD240764
Quercus kelloggii
G. K Helmkamp, E. A. Helmkamp
2006-10-26
11575
El Dorado
Northern Sierra Nevada Mountains Foothills: Oak Hill Drive 1.3 miles south of Pleasant Valley Road at Tiger Lily (Placerville 7.5'Q)
671
Comment
RSA749734
Quercus lobata
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14258
Colusa
along River Road (generally following the Sacramento River), 1.1 miles north of Colusa
18
Comment
RSA0053695
Quercus wislizeni var. wislizeni
G. K. Helmkamp, E. A. Helmkamp
2007-9-17
12973
Yolo
West edge of Sacramento Valley: Capay Valley, Brick Chimney Canyon; along Count Road 78A, 2.4 miles southwest of its junction with CA-16 and about 3 miles west of Capay.
113
Comment
UCD55749
Quercus wislizeni var. wislizeni
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-4
10291
El Dorado
Northern Sierra Neveda foothills, east end of Diamond Springs, 0.1 mile north of the junction of Pleasant Valley Road and Hwy. CA-49.
542
Comment
UCR159309
Rafinesquia californica
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9384
San Luis Obispo
Inner South Coast Ranges, Carrizo Hwy at Mile-19 (Calif. Hwy 58, east of Santa Margarita near Wilson Corner)
470
Comment
UCR169952
Ranunculus
George K. Helmkamp
2004-6-9
8614
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr (Calif. Hwy 1), 0.3 mi south of Halcyon Rd.
76
Comment
SEINET1908703
Ranunculus alismifolius var. alismifolius
G. K. Helmkamp, E. A. Helmkamp
2007-1
12221
El Dorado
Northern Sierra Nevada Mountains; Wright's Lake Road, north of US-50 at the Lyon's Creek trailhead and creek crossing
2057
Comment
UCR258236
Ranunculus bonariensis var. trisepalus
George K. Helmkamp, Amy Barnes
2013-3-28
20251
Yuba
Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road
30
Comment
SEINET3282817
Ranunculus californicus
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11864
El Dorado
Foothills, Northern Sierra Nevada Mountains; junction of Ice House Road and White Meadows Road, about 2 miles northwest of US-50.
1029
Comment
UCR103803
Ranunculus californicus
George K. Helmkamp
1997-3-8
1463
San Luis Obispo
Central Coast 7.5' Q., SE of Los Osos. Swift Ranch, starting c. 2 mi. south of Los Osos Valley Rd on Clark Valley Rd.
107
Comment
UCR187295
Ranunculus californicus
George K. Helmkamp, E. A. Helmkamp
2007-4-5
11734
Amador
Foothills, Northern Sierra Nevada Mountains, Sutter to Ione Road, 0.4 mi east of CA-49, northeast of Ione
180
Comment
UCR184841
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11950
El Dorado
Foothills, Northern Sierra Nevada Mountains, Pedro Hills Road, 0.3 mile west of the junction with Calif. Hwy 49, junction 5.3 miles south of Cool
299
Comment
SD255688
Raphanus raphanistrum
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20568
Amador
Sierra Nevada Mountains Foothills: along E-16/Shenandoah Road, 3.6 road miles south of River Pines, 4.15 air miles NE (39a^z) of Plymouth (Fiddletown 7.5'Q)
516
Comment
UCR253815
Raphanus raphanistrum
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20100
Placer
Sacramento Valley, South Dowd Road, 0.1 mile south of its junction with Moore Road, southwest of Lincoln
34
Comment
UCR197500
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13221
Calaveras
San Joaquin Valley / Sierra Nevada Mountains Foothills, along CA-26, 3.7 miles southwest of Valley Springs at Lime Creek Road
143
Comment
UCR242767
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15847
Solano
Northern San Joaquin Valley, Tremont Road, 0.8 mile west of Mace Blvd, 3.8 mi. (air) SE of Davis
3
Comment
UCR242796
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2010-4-3
15813 A
Amador
Foothills Northern Sierra Nevada Mountains, Willow Creek Road, 1.2 miles north of its junction with CA-124, 3.7 mi. NE (22 deg. ) of Ione
175
Comment
UCR122568
Rhamnus californica subsp. californica
George K. Helmkamp, E. A. Helmkamp
2000-4-21
5445
San Luis Obispo
Santa Lucia Range, Santa Rosa Creek Road, 5.6 mi east of Cambria
76
Comment
SEINET4691383
Rhamnus tomentella subsp. tomentella
George K. Helmkamp, E. A. Helmkamp
2011-1
17790
Nevada
Northern Sierra Nevada Mountains Foothills: You Bet Road just northeast of its junction with CA-174, 1.25 mi. east (91 degrees) of Peardale.
778
Comment
UCR130639
Rhus ovata
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4658
San Diego
Peninsular Ranges, c. 5 mi NE of Alpine. Old Viejas Grade at the E side of Viejas Mtn., 0.6 mi east of the Viejas Indian Reservation
854
Comment
UCR140059
Rhus ovata
George K. Helmkamp
2004-4-21
8505
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCR233317
Ribes roezlii var. roezlii
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18262
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road, 0.6 miles north of its junction with CA-88
2136
Comment
RSA792001
Rorippa
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19317
Amador
Northern Sierra Nevada Mountains: Bear River Road, 3.0 miles east of the Lower Bear River Reservoir dam.
1816
Comment
CAS-BOT-BC154076
Rorippa curvipes
G. K. Helmkamp; E. A. Helmkamp
1998-8-11
4322
Mono
White Mountains: Campito Meadow, west of White Mtn. Rd at Poison Creek
3293
Comment
UCR141107
Rorippa curvipes
George K. Helmkamp, E. A. Helmkamp
1998-8-11
4322
Mono
White Mountains, Campito Meadow, west of White Mountain Road at Poison Creek
3293
Comment
UCR197602
Rorippa curvisiliqua
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13732
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 1.1 miles south of its junction with CA-88 (jct. is between Mormon Emigrant Trail and Bear River Reservoir Road), c. 2 miles (air) north of the west end of Lower Bear River Reservoir
2055
Comment
UCR104812
Rosa californica
George K. Helmkamp
1997-6-20
2054
San Luis Obispo
Central Coast, Los Osos, c. 0.2 mi. NE of Buckskin & Martingale
27
Comment
UCR231870
Rosa californica
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17026
Placer
Northern Sierra Nevada Mountains Foothills, along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine Reservoir dam
1180
Comment
UCR231851
Rubus laciniatus
George K. Helmkamp, E. A. Helmkamp
2010-8-11
16752
Placer
Northern Sierra Nevada Mountains, Finning Mill Road, 1.2 miles north of Forest Hill Road, at the crossing of Mill Creek
1085
Comment
UCR123908
Rubus parviflorus
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6917
Tehama
Sierra Nevada Mountains, Calif. Hwy 36, 2.6 mi west of Mineral, about 33 mi west of Chester, Lake Almanor
1418
Comment
UCR140149
Rubus ursinus
George K. Helmkamp
2004-2-6
8241
San Luis Obispo
Central Coast, entrance to Oso Flaco Lake, SW of Nipomo
6
Comment
RSA0012137
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17653
El Dorado
Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
RSA0035673
Rumex acetosella
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20465
Placer
SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road
974
Comment
UCR123528
Rumex acetosella
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6891
Tehama
Northern Sierra Nevada Mountains, SE of Mt. Lassen; Calif. Hwy 36/89 at Gurnsey Creek, about 2 mi north of junction with Calif. Hwy 32
1448
Comment
UCR208563
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2009-5-4
14587
El Dorado
Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 3.6 miles east of Sly Park Rd. and Jenkinson Lake
1226
Comment
UCR218118
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16404
Placer
Sierra Nevada Mountains Foothills, Yankee Jim's Road in Bunch Canyon, 0.5 mile southeast of its junction with Canyon Way
591
Comment
UCR245602
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19104
Calaveras
Northern Sierra Nevada Mountains, Winton Road, 4.1 miles east of its junction with CA-26, NE of West Point
1072
Comment
UCR252986
Rumex acetosella
George K. Helmkamp, Amy Barnes
2013-9-23
22323
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
UCR257627
Rumex acetosella
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19524
Placer
Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary
2136
Comment
CAS-BOT-BC228595
Rumex californicus
George K. Helmkamp; William Barnes
2010-9-4
16936
El Dorado
Northern Sierra Nevada Mountains: Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
CHSC100665
Rumex crispus
G. K. Helmkamp
2004-3-23
8397
San Luis Obispo
Central Coast: ENE of Nipomo; 1.5 mi SW of Rancho Rd along Dana Foothill Rd.
171
Comment
UCR123958
Rumex crispus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6984
Humboldt
North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road
137
Comment
UCR259880
Rumex crispus
George K. Helmkamp, Elizabeth Helmkamp
2013-10-22
22454
Amador
Sierra Nevada Mountains Foothills, Shenandoah Road, near Sobon Creek, 6.8 miles northeast of its junction with CA-49 in Plymouth
563
Comment
UCR104881
Rumex obtusifolius
George K. Helmkamp, E. Helmkamp
1998-2-10
2687
Imperial
Sonoran (Colorado) Desert, SE Salton Sea, vicinity of Wister, drainage ditch at the jct of Pound & Davis Streets.
-66
Comment
UCR188442
Rumex obtusifolius
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13022
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 2.3 miles east of Jenkinson Lake
1226
Comment
UCR116018
Rumex paucifolius
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5880
Mono
Eastern Sierra Nevada Mountains, Humboldt-Toiyabe National Forest, 5.1 mi west of US Hwy 395 at Conway Summit, east of Trumbull Lake, on Virginia Lake Road
2927
Comment
UCR15008
Rumex paucifolius
George K. Helmkamp
1976-6-22
s.n.
Mono
Sierra Nevada Mtns, Mammoth Lakes Village, roadside
2393
Comment
UCR122609
Rumex salicifolius
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4379
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
Comment
UCR248409
Rumex salicifolius var. salicifolius
George K. Helmkamp, Belinda Pesheck
2013-7-14
21065
Alpine
Northern Sierra Nevada Mountains, off Blue Lakes Road, 9.4 miles south of CA-88, between a private dirt road and Charity Valley Creek
2409
Comment
UCR248663
Rumex salicifolius var. salicifolius
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22229
Alpine
Northern Sierra Nevada Mountains, Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89
1924
Comment
UCD101478
Rumex triangulivalvis
G. K. Helmkamp; E. A. Helmkamp
2007-8-4
12708
El Dorado
Northern Sierra Nevada Mountains. Along Mormon Emigeant Trail at Leek Spring meadow, about 2 miles northwest of CA-88.
2237
Comment
RSA613936
Rupertia physodes
George K. Helmkamp
1997-3-8
1443
San Luis Obispo
SE of Los Osos. Swift Ranch, starting ca. 2 mi. S of Los Osos Valley Rd on Clark Valley Rd.
107
Comment
HSC79238
Salazaria mexicana
G. K. Helmkamp
1983-10-8
- 32
Riverside
TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road
762
Comment
UCR116699
Salix exigua
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Mill Creek Canyon, Thurman Flats Picnic Area, on Hwy 38 c. 3.5 mi. east of Mill Creek Ranger Station.
1037
Comment
UCR257062
Salix gooddingii
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20622
Calaveras
Northern Sierra Nevada Mountains Foothills, Poloma Road at its junction with Cosgrove Creek Road, 3 miles NE (30 deg. ) of Valley Springs
279
Comment
CAS-BOT-BC249045
Salix jepsonii
George K. Helmkamp; E. A. Helmkamp
2010-7-28
16671
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat
2040
Comment
UCD111623
Salix lasiolepis
G. K. Helmkamp; E. A. Helmkamp
2006-2-24
10066
El Dorado
Northern Sierra Nevada: 1.5 mi NW of Greenwood along CA Highway 193.
537
Comment
UCR123537
Salix lasiolepis
George K. Helmkamp, E. A. Helmkamp
2000-4-25
5586
Kern
Tehachapi Mountains, Water Cyn Rd SW of Tehachapi and 1.0 mi south of Highline
1494
Comment
UCR171036
Salix lasiolepis
George K. Helmkamp, E. A. Helmkamp
2006-2-24
10066
El Dorado
Northern Sierra Nevada Foothills, 1.5 mi NW of Greenwood along Calif. Highway 193
537
Comment
UCR198461
Salix lasiolepis
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13150
Amador
Foothills, northern Sierra Nevada Mountains, 0.2 mile east of the junction of Bell Road and CA-49 at Enterprise; junction of Plymouth and Pigeon Creeks
259
Comment
UCR257591
Salix lasiolepis
George K. Helmkamp, Elizabeth Helmkamp
2014-2-22
22533
Placer
Sierra Nevada Mountains Foothills, North Auburn, corner of Bell Road and Olympic Way, 0.7 mi. west of CA-49
433
Comment
SEINET3259914
Salix lucida subsp. caudata
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13991
Alpine
Northern Sierra Nevada Mountains; along CA-89, 1.4 miles east of Luther Pass.
2262
Comment
UCR123403
Salix planifolia subsp. planifolia
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4377
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
Comment
UCR189212
Salsola tragus
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12941
El Dorado
Northern Sierra Nevada Mountains, along Hwy US-50 at Strawberry
1741
Comment
UCR130255
Salvia columbariae
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6510
Kern
Tehachapi Mtns, Hart Flat turnoff from Calif. Hwy 58
884
Comment
UCR145625
Salvia columbariae
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5489
Monterey
Central Outer Coast Range, Nacimiento Road, 12 mi north of Gorda and 3.8 mi east of CA Hwy 1, ridge above Kirk Creek
305
Comment
CLARK-A1045-181
Salvia dorrii
George K. Helmkamp
1979-5-5
Riverside
Santa Ana Mountains vernal pool; Wildomar 7.5'Q
Comment Read comments Jul 21 2021
SD140088
Salvia dorrii var. pilosa
Geoge Helmkamp
1993-4-24
San Bernardino
Between Kelbaker Road and the Granite Mountains; 5.1 miles northeast of U. S. 40.
1219
Comment
SD130328
Salvia sonomensis
George Helmkamp
1990-4-19
San Luis Obispo
West Cuesta Ridge, 3.0 miles northwest of US 101, north of San Luis Obispo.
671
Comment
SEINET4691735
Sambucus nigra subsp. caerulea
George K. Helmkamp, Amy Barnes
2013-1
22353
Calaveras
Northern Sierra Nevada Mountains: SE side of White Pines Reservoir, 0.6 mile NE of Arnold.
1184
Comment
SD254703
Sanguisorba minor subsp. muricata
George K. Helmkamp, Elizabeth Helmkamp
2013-10-14
22416
Placer
Sierra Nevada Mountains Foothills: Yankee Jim Road, 3.6 mile northwest of its junction with Foresthill Road.
651
Comment
SEINET4560808
Sanguisorba minor subsp. muricata
George K. Helmkamp, E. A. Helmkamp
2010-1
17017
Placer
Northern Sierra Nevada Mountains Foothills: Yankee Jim's Road, 0.5 miles north of Forest Hill Road in Foresthill, near intersection with Mayflower rd.
948
Comment
UCR176250
Sanguisorba minor subsp. muricata
George K. Helmkamp, E. A. Helmkamp
2006-8-11
11217
Placer
Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill
1311
Comment
UCR194937
Sanguisorba minor subsp. muricata
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12016
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill
814
Comment
UCD127919
Sanicula arguta
G. K. Helmkamp; E. A. Helmkamp
2001-4-29
6584
San Luis Obispo
San Luis Obispo County: Irish Hills, Clark Valley Road, 4.2 miles south of Los Osos Valley Road (East of Los Osos.)
274
Comment
SD237290
Sanicula bipinnatifida
G. K. Helmkamp, E. A. Helmkamp
2007-4-5
11730
Amador
Foothills, Northern Sierra Nevada Mountains: Sutter to Ione Road, 0.4 mi east of CA-49, northeast of Ione.
180
Comment
UCD128009
Sanicula bipinnatifida
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-9
10353
Amador
Northern Sierra Nevada Foothills: Along CA Hwy 88, 0.9 mi. S of the El Dorado County line at Enterprise.
274
Comment
RSA667078
Sanicula crassicaulis
George K. Helmkamp, E. Helmkamp
2001-6-2
6784
San Mateo
Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1
244
Comment
UCD127979
Sanicula crassicaulis
G. Helmkamp
1997-3-8
1453
San Luis Obispo
San Luis Obispo County: SE of Los Osos. Swift Ranch, starting around 2 miles south of Los Osos Valley Road on Clark Valley Road.
106
Comment
UCR15621
Sanicula crassicaulis
George K. Helmkamp
1978-4-23
s.n.
San Luis Obispo
Central Coast, Montana de Oro State Park
Comment
UCR232208
Sanicula crassicaulis
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17493
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
SD243063
Sanicula tuberosa
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16669
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat.
2040
Comment
UCD128045
Sanicula tuberosa
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12062
Placer
Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville.
1576
Comment
UCD128046
Sanicula tuberosa
G. K. Helmkamp; E. A. Helmkamp
2007-6-6
12266
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail, 8.3 miles east of its junction with Sly Park Road.
1616
Comment
UCR189607
Sanicula tuberosa
George K. Helmkamp, Elizabeth Helmkamp, Amy Barnes
2007-6-20
12380
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 17.2 miles ESE of its junction with Sly Park Road at Jenkinson Lake
2128
Comment
CLARK-A1045-125
Sarcostemma hirtellum
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q
Comment
UCR173248
Scandix pecten-veneris
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10459
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road
422
Comment
UCR206400
Scandix pecten-veneris
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14377
Colusa
Inner North Coast Range Foothills, along CA-20, 14.3 miles southwest of Williams
375
Comment
UCR238587
Scandix pecten-veneris
George K. Helmkamp, E. A. Helmkamp
2012-3-31
18664
Placer
Northern Sierra Nevada Mountains Foothills, Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing
258
Comment
UCR104057
Schismus barbatus
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2821
San Bernardino
Mojave Desert, 50 ft. north of the boundary of Joshua Tree National Park at the S end of Sunkist Rd (E of town of Joshua Tree)
884
Comment
CLARK-A1045-1276
Scirpus microcarpus
George K. Helmkamp
1979-6-6
San Diego
Pala Creek beside Creek, 2 miles north of Pala; Pechanga 7.5'Q
Comment
UCR122382
Scirpus microcarpus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7001
Humboldt
North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay
6
Comment
UCR134423
Scirpus microcarpus
George K. Helmkamp
2003-9-19
8144
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
UCR176045
Scirpus microcarpus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11007
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
UCR189214
Scirpus microcarpus
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12939
El Dorado
Northern Sierra Nevada Mountains, along Hwy US-50 at Echo Summit
2256
Comment
UCR245500
Scirpus microcarpus
George K. Helmkamp, Amy Barnes
2013-9-24
22357
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
UCD98513
Scleranthus annuus subsp. annuus
G. K. Helmkamp; E. A. Helmkamp
2007-5-9
11979
El Dorado
Northern Sierra Nevada Mountains; Ice House Road, 2 miles northeast of US-50, 1.25 miles NE of Riverton.
1220
Comment
UCR197644
Sedum lanceolatum
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13841
Alpine
Northern Sierra Nevada Mountains, 0.1 mile south of CA-88 on a dead-end spur south of Carson Pass
2595
Comment
UCR188241
Sedum obtusatum subsp. obtusatum
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11862
El Dorado
Foothills, Northern Sierra Nevada Mountains, Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House
1027
Comment
UCR145626
Selaginella bigelovii
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5490
Monterey
Central Outer Coast Range, Nacimiento Road, 12 mi north of Gorda and 3.8 mi east of CA Hwy 1, ridge above Kirk Creek
305
Comment
UCR122625
Senecio breweri
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7605
San Benito
Inner South Coast Ranges, County Hwy J-1(Panoche Rd) 15.6 mi SE of its junction with CA Hwy 25; along Tres Pinos Creek
671
Comment
UCR88327
Senecio cymbalarioides
George K. Helmkamp
1995-9-23
3 31
Alpine
Sierra Nevada Mtns, west side of Sonora Pass, just beyond the Mono County line
2927
Comment
UCR132165
Senecio flaccidus var. monoensis
George K. Helmkamp, E. A. Helmkamp
1993-7-28
177
Mono
Sierra Nevada Mountains, Long Valley along Owens Gorge Road about 5 mi north of Tom's Place
2256
Comment
UCR15595
Senecio fremontii var. occidentalis
George K. Helmkamp
1978-5-30
s.n.
Mono
Eastern Sierra Nevada Mtns., c. 2 mi north of Conway Summit of Hwy US-395
2134
Comment Read comments Aug 5 2017
UCR14372
Senecio hydrophilus
George K. Helmkamp
1974-7-26
s.n.
Mono
Owens Valley, Big Springs at water's edge, Owens River
2195
Comment
CLARK-A1045-1426
Senecio integerrimus var. exaltatus
George K. Helmkamp
1977-8-5
Mariposa
Sierra Nevada 2 miles east of Yosemite Creek on the way to Porcupine Flats; dry slope, coniferous forest; ; Yosemite Falls 7.5'Q
2682
Comment
UCR121757
Senecio integerrimus var. exaltatus
George K. Helmkamp, E. A. Helmkamp
1998-8-11
4326
Mono
White Mountains, Campito Meadow, west of White Mountain Road at Poison Creek
3293
Comment
UCR219040
Senecio integerrimus var. major
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16517
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
UCR176437
Senecio triangularis
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11192
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road
2250
Comment
UCR197511
Senecio triangularis
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13766
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring Road, 8.0 miles southwest of Kirkwood and 0.1 mile north of its junction with CA-88
2421
Comment
UCR248373
Senecio triangularis
George K. Helmkamp, Elizabeth Helmkamp
2013-7-10
21022
Amador
Northern Sierra Nevada Mountains, Plasse Road at the southern end of Silver Lake, off Hwy 88/Carson Pass Hwy
2191
Comment
UCR147032
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8836
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR237585
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2012-3-9
18607
Yolo
Sacramento Valley, East Main Street (Co. Rd. 22), Woodland (parallel to I-5), 1.7 mile west of the Sacramento River
7
Comment
UCR258382
Sericocarpus oregonensis
George K. Helmkamp, Amy Barnes
2014-8-11
22982
El Dorado
Northern Sierra Nevada Mountains, north of Union Valley Reservoir, junction of Robbs Peak Road and Ice House Road
1655
Comment
UCR101676
Sherardia arvensis
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3750
San Mateo
Portola Valley, Golden Hills Rd along Los Trancos Creek
107
Comment
SD248363
Sibara virginica
George K. Helmkamp, Amy Barnes
2013-3-28
20278
Sutter
Sacramento Valley: Hageman Road just south of its junction with CA-20, east of Meridian (Sutter Buttes 7.5'Q)
17
Comment
SEINET7929947
Sidalcea glaucescens
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15384
Alpine
Sierra Nevada Mountains: along CA-4 at the trailhead for Ebbetts Pass, 12.8 miles southwest of the CA-4 junction with CA-89 (Ebbetts Pass).; 0
2637
Comment
UCR245571
Sidalcea glaucescens
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22234
Alpine
Northern Sierra Nevada Mountains, Silver Creek, along CA-4, 5.0 miles west of its junction with CA-89
1927
Comment
UCD116737
Sidalcea hartwegii
G. K. Helmkamp; E. A. Helmkamp
2007-4-20
11763
El Dorado
Northern Sierra Nevada Mountains, 2.2 miles north of US-50 on Bass Lake Road, overlooking Bass Lake, between El Dorado Hills and Cameron Park.
384
Comment
UCR248405
Sidalcea malviflora subsp. asprella
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
22000
El Dorado
Northern Sierra Nevada Mountains, Hell's Delight Road, just west of the junction with Silver Fork Road, 2.8 miles north of CA-88
2006
Comment
UCR121470
Sidalcea oregana subsp. spicata
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5046
Nevada
Northern Sierra Nevada Range, Prosser Creek at Hobart Mills, c. 50-100 yards east of Calif. Hwy 89, NE of Lake Tahoe
1707
Comment
UCR256487
Silene californica
George K. Helmkamp, Amy Barnes
2014-5-8
22840
Amador
Sacramento Valley/Sierra Nevada Foothills, Tonzi Road, 0.4 mile east of its junction with CA-124, 4.5 air miles NE (35 deg. ) of Ione
188
Comment
UCR107311
Silene gallica
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3717
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; 3.2 mi south of Camden Ave.
152
Comment
UCR218178
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16177
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 2.8 miles east of the village of Sutter Creek
427
Comment
CLARK-A1045-1425
Silene lemmonii
George K. Helmkamp
1977-8-6
Mariposa
Sierra Nevada 2 miles east of Yosemite Creek on the way to Porcupine Flats; dry slope under pines; ; Yosemite Falls 7.5'Q
2682
Comment
UCR176059
Silene lemmonii
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10982
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
CAS-BOT-BC229021
Silene verecunda
George K. Helmkamp; Ann Kerchner; Amy Barnes
2011-8-13
18058
Calaveras
Northern Sierra Nevada Mountains: Black Springs Road (Forest Route 6N45?), 1.7 miles north of its junction with CA Hwy 4
2058
Comment
SD224898
Sisymbrium altissimum
G. K. Helmkamp
1997-9-30
2494
Inyo
East side of the White Mountains
1707
Comment
SEINET1908453
Sisymbrium altissimum
G. K. Helmkamp, E. A. Helmkamp
2008-1
13883
Alpine
Eastern Sierra Nevada Mountains: Carson River road, 0.4 mile east of its west junction with CA-88.
1713
Comment
UCR122192
Sisymbrium irio
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7560
Fresno
Central Valley; San Joaquin Valley, along CA Hwy 180, 10.8 mi west of CA Hwy 145
107
Comment
RSA791742
Sisymbrium officinale
George K. Helmkamp, E. A. Helmkamp
2012-5-3
18899
El Dorado
Northern Sierra Nevada Mountains Foothills: Forebay Road north of Pollock Pines, at the south side of the bridge over the South Fork American River.
591
Comment
UCR188015
Sisymbrium officinale
George K. Helmkamp, E. A. Helmkamp
2007-5-1
11924
El Dorado
Foothills, Northern Sierra Nevada Mountains, along Hwy CA-49 at the junction with Teal Road, 3.0 miles northwest of US-50 in Placerville
558
Comment
SEINET13203116
Sisyrinchium bellum
George K. Helmkamp
2014-1
22743
Nevada
Northern Sierra Nevada Mountains Foothills: along CA-120, 2.3 miles west of its junction with CA-49 in Grass Valley (Grass Valley 7.5' Q.)
728
Comment
UCD138876
Sisyrinchium bellum
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-11
10385
Nevada
Northern Sierra Nevada Mountains. Cedarsong Road, 0.1 mile NE of CA-Hwy 49 (NW of Nevada City).
637
Comment
UCR256511
Sisyrinchium bellum
George K. Helmkamp, Amy Barnes
2014-5-8
22864
El Dorado
Sierra Nevada Mountains Foothills, along CA-49 near Ramales Lane, c. 0.7 mile north of Union Mine Road junction
282
Comment
UCR191063
Smilacina racemosa
George K. Helmkamp, E. A. Helmkamp
2007-6-6
12281
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 3.2 miles south of it junction with Mormon Emigrant Trail, east of Jenkinson Lake and near Diamond Creek
1189
Comment
UCR122985
Solanum douglasii
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6782
San Mateo
San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1
244
Comment
UCR91834
Solanum douglasii
George K. Helmkamp
1996-5-25
1055
San Luis Obispo
Central Coast, between CA Hwy 1 and the ocean, 1.5 miles north of Piedras Blancas lighthouse near the northern border of the county
15
Comment
SD143696
Solanum umbelliferum
G. K. Helmkamp, E. A. Helmkamp
1998-4-8
3247
Kern
2.3 mi. NE of Cerro Noroeste Rd along CA hwy 33, SW of Maricopa, roadside
793
Comment
UCR130100
Solanum umbelliferum
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5559
Monterey
Inner South Coast Ranges, Salinas Valley, 6 miles south of King City and 0.6 mile east of G-14 (Jolon Rd) on San Lucas Rd.
183
Comment
UCR61758
Solanum umbelliferum
George K. Helmkamp
1990-4-19
s.n.
San Luis Obispo
Along State Hwy 58, c. 2 mi NE of 7 mi Road, just before the Kern County line.
884
Comment
UCR88348
Solanum xanti
George K. Helmkamp, E. A. Helmkamp
1995-6-20
95- 2 -
San Luis Obispo
Bear Creek Ranch, SE of Los Osos. 6 mi SE of Los Osos on Clark Valley Rd
396
Comment
UCR201521
Solidago canadensis subsp. elongata
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14014
Placer
Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River
1811
Comment
UCR231869
Solidago canadensis subsp. elongata
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17027
Placer
Northern Sierra Nevada Mountains Foothills, along Forest Route 24 at Parker Flat and beside Forbes Creek, 1.9 miles east (airline) of the Sugar Pine Reservoir dam
1180
Comment
UCR233033
Solidago canadensis subsp. elongata
George K. Helmkamp, E. A. Helmkamp
2011-9-23
18308
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 8.6 miles north of its junction with US-50
1613
Comment
UCR258130
Solidago canadensis subsp. elongata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19550
Amador
Northern Sierra Nevada Mountains, West Lake Road along the west side of Silver Lake; 4.1 miles north of junction with Plasse Road
2247
Comment
UCR258393
Solidago canadensis subsp. elongata
George K. Helmkamp, Amy Barnes
2014-8-11
23000
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 1.7 miles south of Crystal Basin Information Station
1610
Comment
SEINET3123354
Solidago canadensis subsp. elongata
George K. Helmkamp, E. A. Helmkamp
2006-1
11022
El Dorado
Northern Sierra Nevada Mtns: North Truckee River Rd., 1.4 miles north of CA-50 and ca. 6 miles south of Lake Tahoe
2009
Comment
HSC79163
Solidago confinis
G. K. Helmkamp
1983-10-8
- 2
San Bernardino
Big Morongo Preserve of The Nature Conservancy, Morongo Valley, near the house in the San Bernardino Co. owned area.
762
Comment
UCR37501
Sonchus asper
George K. Helmkamp
1984-4-20
840420- 36
San Bernardino
Little San Bernardino Mountains, Big Morongo Preserve of The Nature Conservancy, south of the town of Morongo Valley in Big Morongo Canyon
765
Comment
OBI37465
Sonchus asper
G. Helmkamp
1985-5-4
448
San Bernardino
Morongo Cyn; SE of Morongo Valley. Along the Mesquite Trl at the old dam
747
Comment
UCR147034
Sonchus asper subsp. asper
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8839
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR238743
Sonchus asper subsp. asper
George K. Helmkamp, E. A. Helmkamp
2012-2-9
18540
Glenn
Sacramento Valley, Norman Road/ Rd. 68, 0.4 mile west of the Colusa County line, beside the Sacramento National Wildlife Refuge
24
Comment
UCR140145
Sonchus oleraceus
George K. Helmkamp
2004-2-7
8257
San Luis Obispo
Central Coast, SE of Oceano along Halcyon Rd., just east of Mesa View Dr.
76
Comment
UCR161332
Sonchus oleraceus
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9007
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness north of Lake Lopez, Upper Lopez Canyon Road, 7.2 mi north of jct with Lopez Road and at Water End Road
174
Comment
UCR253621
Sonchus oleraceus
George K. Helmkamp
2014-3-11
22537
Nevada
Sierra Nevada Mountains Foothills, Auburn, southbound on CA-49 about 0.1 mile east of Lincoln Way
402
Comment
SEINET3246219
Sorghum halepense
G. K. Helmkamp, E. A. Helmkamp
2008-1
14284
Sacramento
Southern Sacramento Valley: Highway E13 (Twin Cities Road), 3.5 miles west of CA-99.
18
Comment
UCR200883
Sorghum halepense
George K. Helmkamp, E. A. Helmkamp
2008-9-18
14131
Yuba
Foothills, northern Sierra Nevada Mountains, Bullards Bar Dam, along Marysville Road, 6 miles southwest of its junction with CA-49
616
Comment
UCR233018
Sorghum halepense
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17275
Sutter
Sacramento Valley, Garden Highway at the junction with Garwood Road, c. 1 mi. SW of Nicolaus
11
Comment
UCR253816
Sorghum halepense
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20099
Placer
Sacramento Valley, South Dowd Road, 0.1 mile south of its junction with Moore Road, southwest of Lincoln
34
Comment
UCR258183
Sorghum halepense
George K. Helmkamp, Elizabeth Helmkamp
2012-10-16
20038
Placer
Sierra Nevada Mountains Foothills, city of North Auburn, corner of Locksley Lane and CA-49
384
Comment
UCR259852
Sorghum halepense
George K. Helmkamp, Elizabeth Helmkamp
2013-10-18
22438
Amador
Sierra Nevada Mountains Foothills, Plymouth, at the junction of Mineral Street and Mill Street, near Hwy CA-49
329
Comment
SEINET4560891
Spergula arvensis subsp. arvensis
George K. Helmkamp, E. A. Helmkamp
2012-1
18599
Amador
Northern Sierra Nevada Mountains Foothills: along CA-124 (E Plymouth Hwy), 1.2 miles northeast of Ione.
169
Comment
UCR231341
Spergularia macrotheca var. leucantha
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17191
Yuba
East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir
65
Comment
UCR140146
Spergularia macrotheca var. macrotheca
George K. Helmkamp
2004-2-10
8268
San Luis Obispo
Central Coast, southeast of Oceano along Halcyon Rd., 0.2 mi east of Mesa View Dr.
76
Comment
UCR37619
Spergularia marina
George K. Helmkamp
1984-5-2
D- 30
Riverside
Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve
610
Comment
UCR100930
Spergularia rubra
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3259
Kern
14 mi. NE of Taft; along Tupman Rd just north of its intersection w/ Calif. hwy 199 (W of the outlet canal).
91
Comment
UCR179332
Spergularia rubra
George K. Helmkamp, E. A. Helmkamp
2006-10-10
11523
Yuba
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49 just north of the Nevada County line at the Middle Yuba River bridge
451
Comment
CLARK-A1045-1008
Sphaeralcea ambigua
George K. Helmkamp
1977-4-23
Inyo
Panamint Mountains east of Townes Pass; ; Panamint Butte, 7.5' Q
1219
Comment
UCR103823
Sphenosciadium capitellatum
George K. Helmkamp, E. A. Helmkamp
1997-9-10
2338
Mono
Eastern Sierra Nevada, Inyo National Forest at Pilot Spring, c. 5 mi. SE of Calif. Hwy 120, SE of Mono Lake & north of Mono Craters
2302
Comment
UCR134700
Sphenosciadium capitellatum
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4274
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR176458
Spiraea densiflora
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11082
El Dorado
Northern Sierra Nevada Mountains, along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Hwy US-50
1864
Comment
UCR206673
Spiraea densiflora
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15193
Placer
Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill
1704
Comment
UCR253231
Spiraea densiflora
George K. Helmkamp, Elizabeth Helmkamp
2013-7-6
20980
Amador
Northern Sierra Nevada Mountains, Bear River Road at the south end of the dam for Lower Bear River Reservoir
1784
Comment
UCR14527
Sporobolus airoides
George K. Helmkamp
1974-6-8
s.n.
Inyo
Owens Valley, Pleasant Valley along the Owens River, 9 mi NW of Bishop
1311
Comment
UCR215778
Stachys ajugoides var. rigida
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15355
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR257790
Stachys ajugoides var. rigida
George K. Helmkamp, Amy Barnes
2012-8-19
19672
El Dorado
Northern Sierra Nevada Mountains, unnamed dirt road along Ice House Road, 0.4 mile south of Robbs Peak Road, N of Union Valley Reservoir
1756
Comment
UCR115810
Stachys bullata
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5691
San Luis Obispo
Central Coast, between Los Osos and sand dunes west of the end of Howard St.
15
Comment
UCR233143A
Stachys palustris subsp. pilosa
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18336
El Dorado
Northern Sierra Nevada Mountains, Wentworth Springs Road at the junction with South Creek Road, 4.0 miles north of the Wentworth Springs/Loon Lake junction
1750
Comment
UCD99399
Stellaria media
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-25
10222
El Dorado
Northern Sierra Nevada Foothills; E of Sacramento and just SW of Placerville. Forni road between US Hwy 50 and Diamond Springs, at Weber Creek.
488
Comment
CDA36250
Stellaria neglecta
G. K. Helmkamp, E. A. Helmkamp
2007-3-14
11633
Sacramento
Sacramento Valley near the edge of Sierra Nevada foothills.; Latrobe Rd. about 5.7 miles west of Latrobe and 1.5 miles west of the El Dorado County line.
Comment
UCR238411
Stellaria pallida
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18726
San Joaquin
San Joaquin Valley, along CA-26, 3.2 miles southwest of its junction with N Wimer Road, NE of town of Linden
52
Comment
RSA666858
Stephanomeria cichoriacea
George K. Helmkamp, E. A. Helmkamp
2000-9-2
5967
San Luis Obispo
Profumo Canyon, 2.2 mi W of Los Osos Valley Rd.
137
Comment
UCR146847
Stephanomeria exigua
George K. Helmkamp, E. A. Helmkamp
2004-9-23
8803
Santa Barbara
San Rafael Mountains., Figueroa Mountain Road, 8.5 mi NE of Los Olivos
587
Comment
UCR242799
Stephanomeria lactucina
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16901
El Dorado
Northern Sierra Nevada Mountains, Mehrten Springs Road, 0.6 mile north of its junction wtih CA-88
2018
Comment
OBI43759
Stephanomeria pauciflora
G. K. Helmkamp
1986-9-28
s.n.
Inyo
0.4 mi N of Tecopa
427
Comment
UCR184962
Stipa californica
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11799
Amador
Foothills, Northern Sierra Nevada Mountains, junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione
229
Comment
UCR171620
Stipa occidentalis
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9745
El Dorado
Northern Sierra Nevada Foothills, 20 mi WSW of Lake Tahoe; Ice House Road, N of Calif. Highway 50 and 1.5 mi south of junction with Ice House Reservoir
1637
Comment
UCR257691
Stipa occidentalis var. californica
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19473
Sierra
Northern Sierra Nevada Mountains, Little Truckee River valley along Hwy CA-89, 3.5 road miles north of the Nevada County line, 9.6 air miles SE (136 deg. ) of Sierraville
1878
Comment
UCR256644
Stipa occidentalis var. pubescens
George K. Helmkamp, Elizabeth Helmkamp
2013-5-30
20739
Nevada
Northern Sierra Nevada Mountains, Pine Flat Way, just south of its junction with CA-20
1151
Comment
UCR233022
Stipa stillmanii
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18324
El Dorado
Northern Sierra Nevada Mountains, Loon Lake [Ice House] Road, 2.7 miles NNE of its junction with Wentworth Springs Road
1884
Comment
UCR193336
Streptanthus tortuosus var. orbiculatus
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12174
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.7 miles east of its junction with Forest Hill Road in Foresthill
588
Comment
CAS-BOT-BC64532
Styrax redivivus
G. K. Helmkamp
2004-4-14
8439
Santa Barbara
Santa Inez Mountains: Cold Spring Canyon, along stagecoach Rd. just off Hwy 154, ca. 5 mi. se. of Lake Cachuma
609
Comment
CLARK-A1045-1301
Suaeda fruticosa
George K. Helmkamp
1978-3-17
San Diego
Anza-Borrego Desert State Park Tierra Blanca Mountains; Mountain Palm Springs; bottom of canyon; Sweeney Pass 7.5'Q
Comment
UCR123937
Suaeda moquinii
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6546
Kern
San Joaquin Valley, Enos Lane Rd., 1.9 mi south of Calif. Hwy 119, NE of Taft
61
Comment
UCR118336
Symphoricarpos mollis
George K. Helmkamp, E. A. Helmkamp
2000-9-2
5974
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road
137
Comment
SD248320
Symphyotrichum bracteolatum
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22081
El Dorado
Northern Sierra Nevada Mountains: Mehrten Spring Road, 0.5 mile north of CA-88 / Carson Pass Hwy. Wet ditch.
1793
Comment
SD260889
Symphyotrichum foliaceum var. parryi
George K. Helmkamp, William Barnes
2010-9-4
16933
El Dorado
Northern Sierra Nevada Mountains: Tragedy Spring Road, 0.1 mile southeast of its upper juncton with CA-88 (Tragedy Spring 7.5'Q)
2412
Comment
UCR45193
Tamarix ramosissima
George K. Helmkamp
1986-9-27
s.n.
San Bernardino
Mojave Desert, Along Salt Creek at the Salt Spring Hills 28 mi. north of Baker on Hwy 127
183
Comment
UCR230727
Tellima grandiflora
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17548
Sierra
Northern Sierra Nevada Mountains Foothills, 7.1 miles north of Camptonville along CA-49, about 2.5 miles north of the Yuba Co. line
808
Comment
UCR134490
Tetradymia canescens
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4367
Inyo
Sierra Nevada Mountains, Independence Creek near Seven Pines and along Onion Valley Road
1799
Comment
UCR175637
Thalictrum fendleri var. fendleri
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10999
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
UCR134432
Thalictrum fendleri var. polycarpum
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6559
San Luis Obispo
South Coast Range, Irish Hills, Clark Valley Road, 2.8 miles south of Los Osos Valley Road, east of Los Osos
91
Comment
UCR103323
Thysanocarpus curvipes
George K. Helmkamp
1998-3-30
3054
San Bernardino
Mojave Desert, E of town of Joshua Tree & south of Copper Mtn, 0.4 mi. east of the S end of Kerr Rd near Joshua Tree National Park
884
Comment
UCR162203
Thysanocarpus laciniatus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8919 A
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Mtns. Huasna Canyon along Huasna Road; 8.5 mi east of its junction with Lopez Road
277
Comment
UCR233334
Thysanocarpus radians
George K. Helmkamp, E. A. Helmkamp
2011-3-29
17114
Calaveras
Eastern San Joaquin Valley, Oak Grove, along CA-26, at the junction with Josephine Lane, c. 0.5 mile southwest of Jenny Lind Road
117
Comment
UCR114350
Tiquilia nuttallii
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2266
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCD128156
Torilis arvensis
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-13
10452
Placer
Northern Sierra Nevada. Ca. 4 air miles NE of Auburn, along an unnamed road to Lake Clementine, 1.2 miles N of Forest Hill Road.
422
Comment
UCR160574
Torilis arvensis
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9585
San Luis Obispo
Central Coast Ranges, Arroyo Grande to Huasna Road along Arroyo Seco Creek, 8.3 miles northeast of Huasna Townsite Road
332
Comment
UCR234579
Torilis arvensis
George K. Helmkamp, E. A. Helmkamp
2011-6-2
17435
Nevada
Northern Sierra Nevada Mountains Foothills, Lake Wildwood, along Pleasant Valley Road, 1.2 miles north of its junction with CA-20
433
Comment
UCR176056
Tragopogon dubius
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10986
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
UCR176534
Tragopogon dubius
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11226
Nevada
Northern Sierra Nevada Mtns, just south of I-80 on Lake Valley Rd
1755
Comment
UCR158602
Trichostema lanatum
George K. Helmkamp, E. A. Helmkamp
2005-4-16
9356
Santa Barbara
Outer South Coast Ranges, Sierra Madre Mountains, 7.5 mi south of Calif. Hwy 166 on Miranda Pines Road
1155
Comment
CAS-BOT-BC520343
Trichostema lanceolatum
George K. Helmkamp; E. A. Helmkamp
2012-10-1
19948
El Dorado
Eastern Sacramento Valley: SE end of El Dorado HIlls; Windfield Way just S of its jct with White Rock Rd
167
Comment
UCD125841
Trichostema lanceolatum
G. K. Helmkamp; E. A. Helmkamp
2006-10-18
11530
El Dorado
Northern Sierra Nevada Mountains Foothills: Diamond Springs; village along Hwy. CA-49 south of Placerville.
540
Comment
UCR95914
Trichostema lanceolatum
George K. Helmkamp
1996-9-21
1188
San Luis Obispo
Santa Margarita Lake. W end of the lake.
396
Comment
UCR234007
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17648
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
UCR235378
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
2012-5-11
18960
Placer
Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 4.0 miles north of Forest Hill Road and at the junction with Hollow Logging Road
1140
Comment
UCR256654
Trientalis latifolia
George K. Helmkamp, Elizabeth Helmkamp
2013-5-30
20746
Nevada
Northern Sierra Nevada Mountains, along Scotts Flat Road, 0.7 mile southwest of its junction with CA-20, NE of Nevada City, NW of Scotts Flat Reservoir
1091
Comment
SD241026
Trifolium
G. K. Helmkamp
2004-4-23
8524
Santa Barbara
San Rafael Mountains: Figueroa Mountain Rd., 15.0 mi NE of Los Olivos.
1341
Comment
UCR158582
Trifolium albopurpureum var. albopurpureum
George K. Helmkamp, E. A. Helmkamp
2005-4-16
9343
Santa Barbara
Outer South Coast Range, Sierra Madre Mountains, 1.1 mi south of Calif. Hwy 166 on Miranda Pines Road
526
Comment
UCR194958
Trifolium bifidum var. decipiens
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12031
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road near the crossing of the North Fork of the West Fork of the American River; 9.5 miles southeast of Foresthill
439
Comment
UCR140472
Trifolium ciliolatum
George K. Helmkamp
2004-4-21
8463
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCSC010664
Trifolium columbinum
George K. Helmkamp, Mary Alice Barnes
2013-4-23
20402
Calaveras
Northern Sierra Nevada Mountains Foothills: Winton Road, 1.9 miels east of its junction with CA-26 in West Point 7.5' quad.
652
Comment
UCR242357
Trifolium cyathiferum
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16870
Amador
Northern Sierra Nevada Mountains, along CA-88, 2.6 miles southwest of its junction with Mormon Emigrant Trail, c. 2.75 mi. NNW of Upper Bear River Reservoir
2162
Comment
SEINET4178628
Trifolium depauperatum
George K. Helmkamp, E. A. Helmkamp
2011-3-19
17092
Calaveras
East end San Joaquin Valley: along CA-26, 1.8 miles southwest of Valley Springs.
206
Comment
CAS-BOT-BC227278
Trifolium dubium
George K. Helmkamp; E. A. Helmkamp
2011-5-10
17233
Amador
Northern Sierra Nevada Mountains Foothills: Turner Road, 0.8 miles south of its junction with Amador Creek Road, 0.95 mi. SE (119 deg. ) of Amador City
311
Comment
SEINET3245951
Trifolium dubium
G. K. Helmkamp, E. A. Helmkamp
2010-1
15928
Placer
Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5')
157
Comment
SEINET3282788
Trifolium dubium
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11894
El Dorado
Foothills, Northern Sierra Nevada Mountains; hiking trail leaving from CA-49, 3.4 miles northwest of Placerville.
511
Comment
UCD108828
Trifolium dubium
G. K. Helmkamp; Elizabeth Helmkamp
2007-4-20
11772
El Dorado
Northern Sierra Nevada Mountains. Junction of Uhlenkamp Road and Pine Hill Road, N of Grass Valley Road and NW of Placerville.
401
Comment
UCR233135B
Trifolium dubium
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15776
Sacramento
Sacramento Valley/lower Sierra Nevada Foothills, along CA-16 (Jackson Rd.), 0.2 mile west of the Amador County line
82
Comment
CAS-BOT-BC226943
Trifolium hirtum
George K. Helmkamp; E. A. Helmkamp
2011-4-10
17156
Placer
Sacramento Valley: along Riosa Road at the east edge of the village of Sheridan
41
Comment
RSA0035672
Trifolium hirtum
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20384
Amador
Along CA-26 (Red Corral/West Point-Pioneer Rd.), 2.8 miles southeast of its junction with CA-88
905
Comment
RSA748973
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11881
El Dorado
hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
SEINET4178522
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17607
Amador
Northern Sierra Nevada Mountains: junction of CA-26 and Joyce Road, northwest of the Hwy 26 bridge over North Fork Mokelumne River, 0.78 mi. SSW of Pioneer.
762
Comment
UCD111146
Trifolium hirtum
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-6
10126
Placer
Northern Sierra Nevada Foothills: NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin.
122
Comment
UCD60412
Trifolium hirtum
G. K. Helmkamp; E. A. Helmkamp
2007-4-30
11881
El Dorado
Northern Sierra Nevada Mountains: hiking trail leaving from CA-49, 3.4 miles northwest of Placerville.
511
Comment
UCR173274
Trifolium hirtum
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10438
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River
370
Comment
UCR233132A
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17323
Calaveras
Northern Sierra Nevada Mountains Foothills, Ridge Road, 1.9 rd. miles southeast of CA-26, 1.8 air mi. southeast (130 deg. ) of Glencoe
863
Comment
UCR237354
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19195
Nevada
Northern Sierra Nevada Mountains Foothills, village of Washington, Relief Hill Road, 0.4 mile north of its junction with Maybert Road & NE of the bridge over the South Yuba River
790
Comment
UCR257598
Trifolium hirtum
George K. Helmkamp, Amy Barnes
2014-3-21
22643
Placer
Sacramento Valley, Sheridan, Riosa Road at the west side of its junction with old CA-65
33
Comment
UCD111222
Trifolium hybridum
G. K. Helmkamp; E. A. Helmkamp
2006-8-14
11238
Nevada
Northern Sierra Nevada Mtns.: just south of I-80 on Lake Valley Rd.
1755
Comment
UCR176005
Trifolium hybridum
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11016
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
SEINET2440977
Trifolium incarnatum
George K. Helmkamp, E. A. Helmkamp
2010-5-4
15945
El Dorado
Sacramento Valley: just NE of Vacaville, N side of Vaca Valley Parkway, 0.1 mi W of its junction with Crescent Drive (Allendale 7.5').
35
Comment
UCR163013
Trifolium incarnatum
George K. Helmkamp, E. A. Helmkamp
2005-4-6
9334
Santa Barbara
Outer South Coast Ranges, San Miguelito road SSW of Lompoc; mile 4.2 near Lompoc Hills
229
Comment
UCR207889
Trifolium incarnatum
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14572
Placer
Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road
448
Comment
UCR216932
Trifolium incarnatum
George K. Helmkamp, E. A. Helmkamp
2010-5-4
15945
Solano
Sacramento Valley, just NE of Vacaville, north side of Vaca Valley Parkway, 0.1 mile west of its junction with Crescent Drive
35
Comment
UCR242827
Trifolium microcephalum
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17578
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26, 2.7 road miles northwest (1.7 air miles, 312 deg. ) of West Point
802
Comment
RSA752654
Trifolium monanthum subsp. monanthum
George K. Helmkamp
2008-6-17
13679
Amador
Bear River Reservoir Road, 0.1 mile south of its junction with CA-88
1991
Comment
UCR230713
Trifolium monanthum subsp. monanthum
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17829
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
CLARK-A1045-1237
Trifolium monoense
George K. Helmkamp
1978-5-30
Mono
Sierra Nevada near Conway Summit, along US Highway 395; Lundy 7.5'Q
Comment
UCR15555
Trifolium monoense
George K. Helmkamp
1978-5-30
s.n.
Mono
Eastern Sierra Nevada Mtns., c. 2 mi north of Conway Summit of Hwy US-395
2134
Comment
UCR170327
Trifolium obtusiflorum
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9879
El Dorado
Northern Sierra Nevada Foothills, Silver Fork, 2.1 mi west of Kyburz along US Highway 50
1220
Comment
UCR237371
Trifolium pratense
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19182 A
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 5.6 miles north of its junction with CA-20 and along Washington Creek
787
Comment
UCR189627
Trifolium repens
George K. Helmkamp, E. A. Helmkamp
2007-8-29
12842
Yuba
Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 1.2 miles southwest of Camptonville
701
Comment
UCR197277
Trifolium subterraneum
George K. Helmkamp, E. A. Helmkamp
2008-4-25
13313
El Dorado
Sierra Nevada Mountains Foothills, junction of Meadowbrook and Bear Creek Roads at Traverse Creek, south of Georgetown
674
Comment
UCR233134A
Trifolium subterraneum
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17336
Calaveras
Northern Sierra Nevada Mountains Foothills, Rail Road Flat Road, 1.2 miles south of its junction with Ridge Road, 10.1 mi. ENE (83 deg. ) of Mokelumne Hill
854
Comment
CAS-BOT-BC516754
Trifolium tomentosum
George K. Helmkamp; Amy Barnes
2013-3-28
20299
Placer
Eastern Sacramento Valley: NW side of jct of Riosa Rd and Andressen Rd, NE of Sheridan
36
Comment
SEINET3889060
Trillium angustipetalum
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10535
El Dorado
Northern Sierra Nevada Mountains: Along Ice House Canyon Road, 10.6 mi. S of Wentworth Springs Road (just S of the Jones fork of Silver Creek and SE of Union Valley Reservoir) (Riverton 7.5' Q).; 0
1509
Comment
RSA755429
Triphysaria eriantha subsp. eriantha
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14462
San Joaquin
junction of Collier Road and CA-88, about 0.2 mile north of the Mokelumne River
43
Comment
UCR233206
Triphysaria eriantha subsp. eriantha
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15837
San Joaquin
Northeast San Joaquin Valley, along CA-88, 1.1 miles southwest of the Amador County line, 6 miles NE (33 deg. ) of Clements
79
Comment
UCR233289
Triphysaria eriantha subsp. eriantha
George K. Helmkamp, E. A. Helmkamp
2011-3-29
17101
San Joaquin
San Joaquin Valley, along CA-26 at the junction with Ospital/N Wimer Road, c. 0.3 mile southwest of the Calaveras County line, 9.1 miles NE (56 deg. ) of Linden
72
Comment
SD236429
Triphysaria pusilla
G. K. Helmkamp, E. A. Helmkamp
2008-3-22
13215
Calaveras
San Joaquin Valley/Sierra Nevada Mountains Foothills: 1.8 miles north of Burson via Burson Rd., at the junction of Comanche Parkway South and Pattison Way
121
Comment
SD241200
Triphysaria versicolor subsp. faucibarbata
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15780
Sacramento
Sacramento Valley/lower Sierra Nevada Foothills: along CA-16 (Jackson Road), 0.2 mile west of the Amador County line (Carbondale 7.5'Q)
81
Comment
SD239514
Triteleia hyacinthina
G. K. Helmkamp, E. A. Helmkamp
2012-6-13
19201
Nevada
Northern Sierra Nevada Mountains Foothills: Maybert Road along South Yuba River, 0.6 mi. NE of the river bridge at Washington (Washington 7.5'Q)
796
Comment
UCR120495
Triteleia hyacinthina
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1999-6-30
5073
Placer
Northern Sierra Nevada Range, Truckee River, c. 4 mi upstream from Lake Tahoe; 1.1 mi south of Squaw Valley Road
1860
Comment
UCR231897
Triteleia hyacinthina
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17153
Placer
Sacramento Valley, along Riosa Road at the east edge of the village of Sheridan
41
Comment
SD240798
Triteleia ixioides subsp. scabra
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15898
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q)
308
Comment
UCR188221
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
2007-5-1
11916
El Dorado
Foothills, Northern Sierra Nevada Mountains, along Hwy CA-49, 6.1 miles northwest of Placerville
454
Comment
UCR218152
Triteleia laxa
George K. Helmkamp, Amy Barnes
2010-5-7
15973
Calaveras
Sierra Nevada Mountains Foothills, along CA-49, 0.4 mile north of its junction with CA-12, vicinity of San Andreas
233
Comment
SBBG128404
Triticum aestivum
G. K. Helmkamp, E. A. Helmkamp
2012-3-9
18612
Yolo
County Rd 16, 2.1 mi E of its jct with County Rd 102, at the area where the rd turns sharply N, ca. 4 mi NE of Woodland
17
Comment
SD233875
Umbellularia californica
G. K. Helmkamp, Elizabeth Helmkamp
2006-4-13
10187
El Dorado
Northern Sierra Nevada Foothills: El Dorado National Forest, along Volcanoville Road, 7.7 mi N of Wentworth Springs road (NE of Georgetown).
915
Comment
UCR189450
Umbellularia californica
George K. Helmkamp, E. A. Helmkamp
2007-3-31
11727
Nevada
Foothills, Northern Sierra Nevada Mountains, just south of the crossing of CA-49 over the South Yuba River
390
Comment
UCR122986
Urtica dioica subsp. gracilis
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6780
San Mateo
San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1
244
Comment
SD241204
Urtica urens
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18725
San Joaquin
San Joaquin Valley: along CA-26, 3.2 miles southwest of its junction with N Wimer Road, NE of town of Linden (Valley Springs SW 7.5'Q)
52
Comment
SD239951
Valeriana californica
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18073
Alpine
Northern Sierra Nevada Mountains: south side of Bear Valley Village, along CA Hwy 4.
2168
Comment
UCR160969
Venegasia carpesioides
George K. Helmkamp
2004-5-2
8560
Santa Barbara
Southern Central Coast, Santa Ynez Mountains, Canada del Refugio Rd., 5. mi N of US-101
488
Comment
SD239505
Veratrum californicum
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17884
Nevada
Northern Sierra Nevada Mountains:along CA Hwy 20, 0.8 mi. east of Bowman Lake Road, 1.23 mi NE (50a^z) of Emigrant Gap and 0.35 mi N of I-80 (Blue Canyon 7.5'Q0
1541
Comment
UCR176006
Veratrum californicum var. californicum
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11015
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
UCR229552
Veratrum californicum var. californicum
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18063
Alpine
Northern Sierra Nevada Mountains, south side of Bear Valley Village, along CA Hwy 4
2169
Comment
UCR245498
Verbascum thapsus
George K. Helmkamp, Amy Barnes
2013-9-24
22358
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
SD241194
Verbascum virgatum
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15890
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 7.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q)
331
Comment
UCR188573
Verbascum virgatum
George K. Helmkamp, E. A. Helmkamp
2007-9-24
13010
Calaveras
Northern foothills, Sierra Nevada Mountains, in Rich Gulch along Gwin Mine Road, 1.2 miles north of Paloma
329
Comment
UCR232613
Verbena bonariensis
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18375
Glenn
Northern Sacramento Valley, along CA-45, 1.2 miles north of Princeton; Sacramento River side of the levee between the highway and Packer Island
29
Comment
UCR258192
Verbena bonariensis
George K. Helmkamp, Elizabeth Helmkamp
2012-10-20
20044
Placer
Sierra Nevada Mountains Foothills, North Auburn; unnamed dirt road on east side of CA-49, between Rock Creek Road and Locksley Lane
387
Comment
HSC104161
Verbena lasiostachys var. lasiostachys
G. K. Helmkamp, E. A. Helmkamp
2012-6-26
19283
Amador
Northern Sierra Nevada Mountains; Panther Creek Road, 8.0 mi. S of its junction with CA-88, along Panther Creek
1345
Comment
UCR159326
Verbena lasiostachys var. lasiostachys
George K. Helmkamp, E. A. Helmkamp
2004-7-7
8743
Santa Barbara
Central Coast, Termination of San Miguelito Road., 8.7 mi SW of I Street in Lompoc
244
Comment
UCR160566
Verbena lasiostachys var. lasiostachys
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9596
San Luis Obispo
Central Coast Ranges, Arroyo Grande to Huasna Road along Arroyo Seco Creek, 8.3 miles northeast of Huasna Townsite Road
332
Comment
UCR240935
Verbena lasiostachys var. lasiostachys
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19283
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 8.0 miles south of its junction with CA-88, along East Panther Creek
1345
Comment
UCR219093
Verbena litoralis
George K. Helmkamp, E. A. Helmkamp
2009-9-5
15571
Butte
Sacramento Valley, Lower Honcut Road, 0.8 mile east of its junction with CA-70, 2.5 mi. WSW (261 deg. ) of Honcut, 6.6 mi. SE (116 deg. ) of Gridley
27
Comment
UCR132121
Veronica americana
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5715
Mendocino
North Coast, along Calif. Hwy 128, approximately 10 mi east of the coast
274
Comment
UCR257723
Veronica americana
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19433
Sierra
Northern Sierra Nevada Mountains, along Hwy CA-89, c. 8 miles north of the Nevada County line
1823
Comment
UCR14459
Veronica catenata
George K. Helmkamp
1974-6-10
s.n.
Inyo
Sierra Nevada Mtns., Pine Creek, NW part of county
2287
Comment Read comments Jul 19 2006
SEINET11262583
Veronica peregrina subsp. xalapensis
George Helmkamp, E. A. Helmkamp
2011-5-19
17313
Calaveras
Sierra Nevada Foothills: Paloma Road, 3.1 miles southwest of its junction with CA-26, 4 miles NE (341/4) of Valley Springs (Valley Springs 7.5' Q.); 0
352
Comment
SD241195
Veronica persica
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18727
San Joaquin
San Joaquin Valley: along CA-26, 3.2 miles southwest of its junction with N Wimer Road, NE of town of Linden (Valley Springs SW 7.5'Q)
52
Comment
UCR169361
Veronica persica
George K. Helmkamp, E. A. Helmkamp
2005-2-12
8897
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, 765 Mesa View Drive, along Calif. Highway 1, 0.3 mi south of Mesa View Drive SE of Oceano/Arroyo Grande
79
Comment
UCR173743
Veronica serpyllifolia subsp. humifusa
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10691
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 10.6 miles south of Wentworth Springs Road (just south of the Jones Fork of Silver Creek)
1509
Comment
UCR232212
Vicia americana
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17489
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
UCR256652
Vicia americana
George K. Helmkamp, Elizabeth Helmkamp
2013-5-30
20744
Nevada
Northern Sierra Nevada Mountains, along Scotts Flat Road, 0.7 mile southwest of its junction with CA-20, NE of Nevada City, NW of Scotts Flat Reservoir
1091
Comment
UCD143805
Vicia americana subsp. americana
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-10
10661
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 6.1 miles north of Hwy US-50.
1653
Comment
SEINET4560743
Vicia benghalensis
George K. Helmkamp, E. A. Helmkamp
2011-1
17267
Sutter
Sacramento Valley: Howsley Road at CA-99/El centro Blvd., 3.3 miles west of Pleasant Grove.
30
Comment
RSA791744
Vicia hirsuta
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18916
Placer
Northern Sierra Nevada Mountains Foothills: Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air miles southest (123 degrees) of Clementine Dam on the American River.
396
Comment
SEINET273102
Vicia hirsuta
G. K. Helmkamp, E. A. Helmkamp; A. Kerchner
1997-6-26
2185
Mendocino
Orth Coast: Sandy disturbed soil beside Big River .2mi E of US 1 S of Mendocino
6
Comment
UCR15554
Vicia sativa
George K. Helmkamp
1978-7-14
s.n.
Del Norte
North Coast, At edge of Smith River, four miles from the ocean
Comment
UCD60414
Vicia sativa subsp. nigra
G. K. Helmkamp; E. A. Helmkamp
2007-3-14
11632
Sacramento
Sacramento Valley near the edge of Sierra Nevada Mountains foothills: Latrobe Rd. about 5.7 miles west of Latrobe and 1.5 miles W of the El Dorado Co. line.
110
Comment
UCR121497
Vicia sativa subsp. nigra
George K. Helmkamp, E. A. Helmkamp
2000-6-19
5772
Mendocino
North Coast Range, Calif. Hwy 20 (Fort Bragg-Willits Rd) 6.8 mi east of US-1, southeast of Fort Bragg
152
Comment
UCR197389
Vicia sativa subsp. nigra
George K. Helmkamp, E. A. Helmkamp
2008-3-18
13179
Calaveras
Sierra Nevada Mountains Foothills, Jesus Maria Road, 0.5 mile south of CA-26, about 1.7 miles southeast of Mokelumne Hill
427
Comment
UCR222542
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15887
Placer
Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 4.2 miles southwest of its junction with CA-49 near Pilot Hill
360
Comment Read comments Apr 25 2011
UCR232281
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2011-3-12
17062
San Joaquin
Northern San Joaquin Valley, Collier Road, 0.2 mile east of its junction with Suttenfield Road, 9.4 mi. NE (50 deg. ) of Lodi
40
Comment
SEINET9261274
Vicia villosa
George K. Helmkamp, Amy Barnes
2014-1
22695
Sacramento
Sacramento Valley: along CA-104/Twin Cities Rd., 0.7 mile west of the Amador County line (Carbondale 7.5 Q
62
Comment
UCR171622
Vicia villosa subsp. varia
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9690
El Dorado
Northern Sierra Nevada Foothills, 30 miles SW of Lake Tahoe; 1 mile east of Jenkinson Lake along Mormon Emigrant Road/County Highway 5
1220
Comment
UCR194711
Vicia villosa subsp. varia
George K. Helmkamp, E. A. Helmkamp
2007-10-28
13124
Sutter
Sacramento Valley, along Nicolaus Road, 0.1 mile west of the Placer County line
12
Comment
SEINET3238896
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2008-3-6
13141
Sutter
Sutter Basin, Sutter Buttes: West Butte Road 2.3 miles northwest of its junction with CA-20, south edge of Sutter Buttes.
22
Comment
UCR119930
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
1999-5-20
4830
Santa Barbara
Central Coast, Casmalia Hills; Corralitos Canyon, southeast of Guadalupe, 3.8 mi southeast of CA Hwy 1 on Brown Road
305
Comment
UCR187296
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2007-4-5
11746
Amador
Foothills, Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City
309
Comment
UCR231888
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17147
Placer
Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road
98
Comment
UCR131864
Vinca major
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5762
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR250706
Vinca major
George K. Helmkamp, Mary Alice Barnes
2013-5-10
20549
El Dorado
Northern Sierra Nevada Mtns. Foothills, Volcanoville Road (end of maintained road), 5.1 miles northwest of Bear Foot Road, at site of Volcanoville
960
Comment
UCR173790
Viola adunca
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10683
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 10.6 miles south of Wentworth Springs Road (just south of the Jones Fork of Silver Creek)
1509
Comment
SBBG127561
Viola bakeri
G. K. Helmkamp, M. J. Ganive, M. A. Barnes
2010-6-15
16298
El Dorado
Mormon Emigrant Trail, just S of Iron Mtn, ca. 15 mi SE of Sly Park Rd at Jenkinson Lake
1854
Comment
SBBG128597
Viola glabella
G. K. Helmkamp, E. A. Helmkamp
2012-5-18
19022
El Dorado
Capps Crossing Rd (Bonnetti Rd), 0.1 mi NW of bridge over Diamond Crk, E of Jenkinson Lake and S of US Hwy 50
1186
Comment
UCR190596
Viola pedunculata
George K. Helmkamp, E. A. Helmkamp
2005-3-30
9248
San Luis Obispo
Outer South Coast Ranges, Pozo Road, 0.9 mi east of Hi Mountain Road, north side of Garcia Mountains
460
Comment
UCD111168
Viola purpurea
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12059
Placer
Northern Sierra Nevada Mountains: Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville.
1576
Comment
RSA0013414
Viola purpurea subsp. quercetorum
George K. Helmkamp, E. A. Helmkamp
2012-5-22
19058
El Dorado
Forest Service Road 31 (Peavine Ridge Road), 1.3 miles wet of its junction with Ice House Canyon Road.
1582
Comment
UCR197385
Vitis californica
George K. Helmkamp, E. A. Helmkamp
2008-4-17
13278
Sutter
Sacramento Valley, along Pass Road at the south side of Sutter Buttes, 2.3 miles northwest of Sutter
70
Comment
UCD94532
Vulpia microstachys var. pauciflora
G. K. Helmkamp
2006-5-4
10295
El Dorado
Northern Sierra Nevada Foothills, east end of Diamond Springs, 0.1 mile north of the junction of Pleasant Valley Road and Hwy CA-49.
543
Comment
UCR230994
Woodsia oregana
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17535
Sierra
Northern Sierra Nevada Mountains Foothills, 5.9 miles north of Camptonville along CA-49, about 1.2 miles northeast of the Yuba Co. line
899
Comment
UCR184810
Wyethia helenioides
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11962
El Dorado
Foothills, Northern Sierra Nevada Mountains, Pedro Hills Road, 0.5 mile west of its junction with Calif. Hwy 49, junction of roads 5.3 miles south of Cool
311
Comment
CAS-BOT-BC383634
Xanthium spinosum
G. K. Helmkamp; E. A. Helmkamp
2009-10-20
15692
El Dorado
Sierra Nevada Mountains Foothills: Sand Ridge Road 0.9 mile east of CA-49, at the junction with Morales Ranch Road, 6.8 air mi. SSW (118 deg. ) of Diamond Springs
381
Comment
UCR179330
Xanthium strumarium
George K. Helmkamp, E. A. Helmkamp
2006-10-10
11518
Nevada
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49, 5.8 miles NNW of Nevada City
750
Comment
UCR194972
Xanthium strumarium
George K. Helmkamp, E. A. Helmkamp
2007-10-28
13109
Placer
Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln
27
Comment
UCR257638
Xanthium strumarium
George K. Helmkamp, Elizabeth Helmkamp
2012-10-13
20018
Placer
Sacramento Valley, Granite Bay, Folsom Lake; Park Road 1.8 miles north of the east end of Douglas Blvd.
146
Comment
UCR197593
Zigadenus paniculatus
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13649
El Dorado
Northern Sierra Nevada Mountains, Cat Creek Road, 3.6 miles north of its junction with CA-88, the jct. is 4.2 miles east of Cook's Station
1753
Comment