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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
UCR179367
Abies concolor var. lowiana
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11430 B
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road 3.3 miles north of Hwy US-50
2058
Comment
RSA755895
Abies magnifica
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15087
El Dorado
Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR109503
Abronia turbinata
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
Comment
UCD60413
Acer macrophyllum
G. K. Helmkamp; E. A. Helmkamp
2007-4-27
11860
El Dorado
Northern Sierra Nevada Mountains: Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House.
1027
Comment
UCR131858
Achillea millefolium
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5738
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR218754
Achillea millefolium
George K. Helmkamp, Laurel Bezdecheck
2010-6-19
16325
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
UCR242808
Achillea millefolium
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17588
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 (112 deg. ) of Pioneer
652
Comment
RSA0013410
Achnatherum lemmonii var. lemmonii
George K. Helmkamp, E. A. Helmkamp
2012-5-22
19036
El Dorado
Silver Fork Road, 0.9 mile south of US-50 in Kyburz
1381
Comment
UCR170822
Achnatherum occidentale subsp. pubescens
George K. Helmkamp, E. A. Helmkamp
2005-8-9
9787
El Dorado
Northern Sierra Nevada Foothills, WSW of Lake Tahoe; NE of Union Valley Reservoir along Ice House Road
1576
Comment
UCR241810
Achnatherum occidentale subsp. pubescens
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19930
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
UCR216931
Achyrachaena mollis
George 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
UCR123982
Achyronychia cooperi
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6389
San Bernardino
Mojave Desert, CA Hwy 62, 16.2 mi east of Utah Trail (Twentynine Palms) near Dale Lake
366
Comment
UCR30097
Achyronychia cooperi
George K. Helmkamp
1983-4-5
483 37
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
CHSC118015
Acmispon americanus var. americanus
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12572
El Dorado
Foothills, northern Sierra Nevada Mountains: Along Hwy CA-193, 1.0 mile south of Georgetown.
771
Comment
UCD103820
Acmispon americanus var. americanus
G. K. Helmkamp; E. A. Helmkamp
2005-7-31
9727
El Dorado
Northern Sierra Nevada Foothills: Junction of Ice House Road and CA Highway 50 (E of Pollock Pines).
1006
Comment
UCD104058
Acmispon brachycarpus
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-29
10257
El Dorado
Northern Sierra Neveda Foothills: Rock Creek Road, 0.9 mi. E of CA Hwy 193.
415
Comment
SD243129
Acmispon nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2011-9-3
18363
Nevada
Northern Sierra Nevada Mountains: small, open flat along CA-20, 2.6 miles west of its junction with Lowell Hill Road (Washington 7.5'Q)
1581
Comment
UCD98792
Aconogonon phytolaccifolium
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11171
El Dorado
Northern Sierra Nevada Mountains. Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road.
2250
Comment
UCR233063
Acroptilon repens
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17278
Sutter
Sacramento Valley, 0.1 mile southwest of village of Nicolaus on 1st Street, beside the Feather River
9
Comment
UCR122918
Adenostoma fasciculatum
George K. Helmkamp, E. A. Helmkamp
2001-5-29
6720
San Benito
South Coast Range, Gabilan Range, 7.1 mi. south of San Juan Bautista on Hwy G-1
488
Comment
RSA748976
Adiantum jordanii
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11897
El Dorado
hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
SD240800
Aegilops triuncialis
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17613
Amador
Northern Sierra Nevada Mountains Foothills: junction of Pine Grove to Volcano Road and Aqueduct Road, 0.76 mi. ENE (86a^z) of Pine Grove (Pine Grove 7.5'Q)
776
Comment
UCR242647
Agoseris
George K. Helmkamp, E. A. Helmkamp
2010-4-3
15802
Amador
Low foothills northern Sierra Nevada Mountains, 4.35 mi. NE (31 deg. ) of Ione, junction of Tonzi Road and CA-124/East Plymouth Hwy
180
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
UCR189610
Agoseris glauca var. laciniata
George K. Helmkamp, Elizabeth Helmkamp, Amy Barnes
2007-6-20
12383
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
UCR106672
Agoseris grandiflora
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3764
Santa Clara
Central Coast Range, Mt.Hamilton Rd (Calif. Hwy 130) east of San Jose; 15.2 mi from the W origin of the Hwy
610
Comment
UCR127138
Agoseris heterophylla
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3834
Monterey
Salinas Valley, 3.7 mi south of Lockwood on G-14, Interlake Road near northwest end of Lake San Antonio
320
Comment
UCD128620
Agoseris monticola
G. K. Helmkamp; E. A. Helmkamp
2006-8-30
11308
Alpine
Northern Sierra Nevada Mountains, Woods Lake, south of CA-88 and generally SE of Caples Lake; beside Woods Creek.
2521
Comment
UCR141002
Agoseris retrorsa
George K. Helmkamp
2004-4-23
8506
Santa Barbara
San Rafael Mountains, Figueroa Mountain, VABM lookout tower north of Figueroa Mountain Rd.
1372
Comment
UCR14526
Agropyron cristatum
George K. Helmkamp
1974-6-8
s.n.
Mono
Eastern Sierra Nevada, US Hwy 395 at Tom's Place, north of Bishop [near Lk. Crowley]
2149
Comment
SEINET9258901
Agrostis exarata
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20981
Amador
Northern Sierra Nevada Mountains: Bear River Road at the south end of the dam for Lower Bear River Reservoi
1783
Comment
UCR237342
Agrostis exarata
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19168
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 3.6 miles north of its junction with CA-20
1006
Comment
SEINET4178673
Agrostis gigantea
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16703
Calaveras
Northern Sierra Nevada Mountains: Forest Route 7N23, 0.1 mile north of junction with CA-4.
2004
Comment
UCR121946
Agrostis idahoensis
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5916
Inyo
Sierra Nevada Mountains, Mosquito Flat, 0.9 mi south of Rock Creek Lake, beside Rock Creek
3140
Comment
UCR197547
Agrostis idahoensis
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13848
Amador
Northern Sierra Nevada Mountains, along CA-88 at Kirkwood
2348
Comment
SEINET2473459
Agrostis pallens
George K. Helmkamp, E. A. Helmkamp
2007-1
12923
El Dorado
Northern Sierra Nevada Mountains; along Hwy US-50, 0.4 mile southwest of Phillips
Comment
SEINET244291
Agrostis scabra
George Helmkamp, E. A. Helmkamp
1997-9-10
2315
Mono
Sierra Nevada Mountains; 4.9 mi SW of CA-120 on Sagehen Meadows Rd.
2591
Comment
UCR170811
Agrostis scabra
George K. Helmkamp, E. A. Helmkamp
2005-8-9
9782
El Dorado
Northern Sierra Nevada Foothills, WSW of Lake Tahoe; NE of Union Valley Reservoir along Ice House Road
1576
Comment
UCR241351
Agrostis scabra
George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp
2012-9-8
19812
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
UCR257823
Agrostis scabra
George K. Helmkamp, Amy Barnes
2012-8-19
19656
El Dorado
Northern Sierra Nevada Mountains, northwest side of Ice House Road, 0.2 mile north of its junction with Forest Route 13N20, c 1.3 miles northeast of Wentworth Springs Road
1787
Comment
UCR233161B
Agrostis stolonifera
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17713
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
Comment
UCR245717
Agrostis stolonifera
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22211
Alpine
Northern Sierra Nevada Mountains, Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89
1924
Comment
SEINET3821626
Aira caryophyllea
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15774
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
UCR233134B
Aira caryophyllea
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15774
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
UCR241979
Albizia julibrissin
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19777
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
UCR101119
Aliciella latifolia
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2944
Imperial
Sonoran (Colorado) Desert, Little Picacho Wash along Picacho Rd, 2.5 mi. south of Picacho State Recreation Area
152
Comment
SEINET2043251
Allionia incarnata
George K. Helmkamp, Elizabeth Helmkamp
2000-4-4
5360
San Bernardino
Colorado River: Beside the California-Arizona border near Topock, AZ.
152
Comment
CLARK-A1045-1225
Allium atrorubens
George K. Helmkamp
1978-5-28
Mono
Lower Rock Creek along creek near old State Highway 395, between Bishop and Crowley; ; Casa Diablo Mountain 7.5'Q
1676
Comment
UCD138505
Allium campanulatum
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11078
El Dorado
Northern Sierra Nevada Mountains. Along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Hwy. U.S.-50.
1864
Comment
UCR87846
Allium campanulatum
George K. Helmkamp, E. A. Helmkamp
1995-6-23
s.n.
Alpine
Sierra Nevada Mtns., Monitor Pass, along Calif. Hwy 89
2530
Comment
UCR123922
Allium fimbriatum var. mohavense
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6657
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
UCR230968
Allophyllum divaricatum
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17473
Amador
Northern Sierra Nevada Mountains Foothills, Sutter Creek Road, 3.4 miles west of Volcano
491
Comment
RSA0053907
Allophyllum integrifolium
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-19
20943
El Dorado
Silver Fork Road, 0.8 mile north of Mormon Emigrant Trail and near Jim Quinn Spring, N of Carson Pass Hwy
2116
Comment
SBBG127566
Allophyllum integrifolium
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15273
El Dorado
Wrights Lake Rd, 1.2 mi S of Wrights Lake
2073
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
UCD118027
Allophyllum integrifolium
G. K. Helmkamp; Elizabeth Helmkamp
2007-6-20
12402
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail just before its junction with Hwy CA-88.
2265
Comment
UCR191131
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12316
Placer
Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20
1610
Comment
UCR207449
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15317
Calaveras
Sierra Nevada Mountains, Ottawa Drive, 0.1 mile south of its junction with CA-4, 1.2 miles northeast of Dorrington
1471
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
SD247349
Alnus incana subsp. tenuifolia
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22243
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
UCR257183
Alnus rhombifolia
George K. Helmkamp, E. A. Helmkamp
2013-11-11
22484
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 4.6 miles east of CA-49 in town of Sutter Creek
421
Comment
UCR106481
Alnus rubra
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2171
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
UCR14892
Alopecurus geniculatus
George K. Helmkamp
1975-9-6
s.n.
Mono
Owens River, Arcularius Ranch
2104
Comment
UCR230734
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17037
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
UCR253798
Amaranthus albus
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20064
San Joaquin
San Joaquin Valley, along Hwy J-6 (Escalon-Bellota Road), 1.2 miles south of its junction with CA-26
46
Comment
UCR258217
Amaranthus albus
George K. Helmkamp, Elizabeth Helmkamp
2012-10-20
20054
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
RSA749527
Amaranthus powellii
George K. Helmkamp, E. Helmkamp
2008-10-6
14209
Yuba
Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst
20
Comment
HSC79252
Ambrosia dumosa
G. K. Helmkamp
1984-5-2
- 17
Riverside
Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns.
550
Comment
SD144072
Ambrosia ilicifolia
G. K. Helmkamp, E. Helmkamp
1998-3-19
2957
Imperial
Colorado Desert: Little Picacho Wash along Picacho Rd. 2.5 mi. S of Picacho State Recreation Area.
152
Comment
SEINET2052883
Ambrosia salsola
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2744
Riverside
Chuckwalla Mts., raham Pass Rd. 10.6 mi. SSW of Chuckwalla Valley Rd.
487
Comment
UCR197032
Amelanchier utahensis
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13878
Alpine
Eastern Sierra Nevada Mountains, along CA-88/89 at the east end of Hope Valley at the West Fork of the Carson River
2104
Comment
UCR233431
Ammannia coccinea
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18383
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
UCR57535
Ammophila arenaria
George K. Helmkamp
1989-8-6
s.n.
San Luis Obispo
Central Coast, Baywood Park, at the south edge of Morro Bay
3
Comment
UCR121595
Amsinckia intermedia
George K. Helmkamp, E. A. Helmkamp
2002-4-22
7434
San Benito
San Andreas rift zone., Bitterwater Valley along Calif. Hwy 25, 17.6 mi north of Calif. Hwy 198
518
Comment
UCR130976
Amsinckia intermedia
George K. Helmkamp, E. A. Helmkamp
1998-5-13
3539
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
UCR140404
Amsinckia intermedia
George K. Helmkamp
2004-2-17
8293
San Luis Obispo
Central Coast, SE of Oceano along Halcyon Rd, 0.2 mi east of Mesa View Dr (Calif. Hwy 1)
76
Comment
UCR238923
Amsinckia intermedia
George K. Helmkamp, E. A. Helmkamp
2012-2-3
18527
Calaveras
San Joaquin Valley/Sierra Nevada Foothills, junction of Paloma Road and Gillam Road, NE of Valley Springs & SE of Pardee Reservoir
285
Comment
UCR257539
Amsinckia intermedia
George K. Helmkamp
2014-4-17
22757
Yuba
Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville
264
Comment
UCR253224
Amsinckia retrorsa
George K. Helmkamp, Amy Barnes
2014-4-7
22736
Sacramento
Sacramento Valley, along CA-104/Twin Cities Road, WNW of Rancho Seco Nuclear Generating Station
56
Comment
SD178190
Amsinckia spectabilis var. microcarpa
G. K. Helmkamp
2004-3-10
8336
San Luis Obispo
Central Coast: Nipomo Mesa, along Pomeroy Rd, 0.2 mi north of Willow Rd, northwest of Nipomo.
91
Comment
UCR179788
Anagallis arvensis
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11479
Amador
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49, 1.1 miles south of Plymouth
314
Comment
UCR241978
Anagallis arvensis
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19778
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
CAS-BOT-BC523897
Anaphalis margaritacea
George K. Helmkamp; Amy Barnes
2014-10-10
23135
Amador
Northern Sierra Nevada Mountains: West side of Bear River Reservoir, 0.2 mi N of the dam
1795
Comment
HSC104188
Anaphalis margaritacea
G. K. Helmkamp, E. A. Helmkamp
2013-9-7
22268
El Dorado
Northern Sierra Nevada Mountains; east side of Mormon Emigrant Trail, 2.7 mi. W of its junction with CA-88/Carson Pass Hwy.
2264
Comment
SD240830
Anaphalis margaritacea
George K. Helmkamp, E. A. Helmkamp
2007-8-1
12657
Nevada
Northern Sierra Nevada Mountains: Soda Lake Road in the vicinity of Lake Van Norden, 0.2 mile south of Donner Pass Road (Soda Springs 7.5'Q)
2073
Comment
UCD128841
Anaphalis margaritacea
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11084
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
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
UCR242342
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
1662
Comment
UCR257855
Angelica breweri
George K. Helmkamp, Amy Barnes
2012-8-12
19611
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.8 mile SE of its junction with CA-88 and beside Woods Creek
2286
Comment
UCD143803
Angelica californica
G. K. Helmkamp; E. A. Helmkamp
2006-7-7
10850
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz.
2049
Comment
UCR134500
Angelica lineariloba
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4357
Inyo
Eastern Sierra Nevada Mountains, Onion Valley, west of Independence
2805
Comment
UCR174936
Anthemis cotula
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10776
Calaveras
Northern Sierra Nevada foothills, along Calif. Hwy 26, 12.3 miles east of the Mokelumne Hill turnoff from Calif. Hwy 49
640
Comment
SD227715
Anthriscus caucalis
G. K. Helmkamp, E. A. Helmkamp
1998-5-16
3745
San Mateo
Portola Valley: Golden Hills Rd along Trancos Creek.
106
Comment
SD234781
Anthriscus caucalis
G. K. Helmkamp, E. A. Helmkamp
2008-4-11
13253
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
UCR188150
Anthriscus caucalis
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11900
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
UCR90214
Antirrhinum filipes
George K. Helmkamp
1995-5-30
s.n.
San Bernardino
Little San Bernardino Mtns/Southern Mojave Desert, Morongo Valley, 1 mi west of Twentynine Palms Hwy in the yard of G. Helmkamp, 49038 Vista Dr.
808
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
UCD121239
Apocynum androsaemifolium
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10960
El Dorado
Northern Sierra Nevada Mtns, Mount Ralston Trail and Hwy US-50 about 0.9 mile south of Twin Bridges (Echo Lake 7.5' Q).
1960
Comment
UCR176068
Apocynum androsaemifolium
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11245
Nevada
Northern Sierra Nevada Mtns, about 0.7 mile east of Donner Pass along Donner Pass Road
2041
Comment
UCR189042
Apocynum androsaemifolium
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12616
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20
1793
Comment
UCD95536
Aquilegia formosa
G. K. Helmkamp
2007-6-29
12449
Amador
Northern Sierra Nevada Mountains: South side of CA-88, 0.1 mile east of Carson spur summit.
2423
Comment
UCD95538
Aquilegia formosa
G. K. Helmkamp; E. A. Helmkamp
2007-8-1
12662
Nevada
Northern Sierra Nevada Mountains: near Camp Spaulding; along Lake Spaulding Road 0.4 mile north of its junction with CA-20.
1573
Comment
UCR234192
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17650
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
UCR217175
Arabidopsis thaliana
George K. Helmkamp, E. A. Helmkamp
2010-5-14
16042
El Dorado
Sierra Nevada Mountains Foothills, Happy Valley Road, 1.1 mi. NE (69 deg. ) of Somerset, just west of the bridge over the Cosumnes River
544
Comment
UCR235442
Arabidopsis thaliana
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18975
Calaveras
Northern Sierra Nevada Mountains Foothills, along Murray Creek Road (Murraydale Ln.), 1.4 miles east of Pope Road in San Andreas
387
Comment
UCR115831
Arabis drummondii
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5872
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
UCR257883
Arabis hirsuta var. glabrata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19554
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
UCR134710
Arabis inyoensis
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4270
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
CLARK-A1045-1434
Arabis rectissima
George K. Helmkamp
1977-8-6
Mariposa
Sierra Nevada 2 miles east of Yosemite Creek on the way to Porcupine Flats, dry roadside; ; Yosemite Falls 7.5'Q
2621
Comment
UCR250161
Arabis rectissima var. rectissima
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20870
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
UCR163036
Arctostaphylos glandulosa
George K. Helmkamp
1993-3-5
s.n.
San Luis Obispo
Central Coast, just north of Montana de Oro State Park
30
Comment
UCR170824
Arctostaphylos manzanita subsp. manzanita
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9942
Placer
Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove)
1805
Comment
UCR200874
Arctostaphylos patula
George K. Helmkamp, E. A. Helmkamp
2008-9-15
14110
Placer
Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill
1954
Comment
UCR233307
Arctostaphylos patula
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18207
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles south of its junction with US-50 in Kyburz
1447
Comment
UCD53467
Arctostaphylos pechoensis
G. K. Helmkamp; E. K. Helmkamp
2001-4-29
6570
San Luis Obispo
Irish Hills; Clark Valley Road; 2.8 miles south of Los Osos Valley Rd. (east of Los Osos).
91
Comment
RSA714201
Arctostaphylos viscida subsp. mariposa
George K. Helmkamp, E. A. Helmkamp
2006-3-17
10076
El Dorado
Forni Road between Ca. Highway 50 and Diamond Springs at Weber Creek.
488
Comment
RSA747035
Arctostaphylos viscida subsp. viscida
George K. Helmkamp, E. A. Helmkamp
2007-3-5
11596
El Dorado
Granite Canyon, along Lotus Road; about 3 miles south of Calif. Hwy 49
372
Comment
UCD72381
Arctostaphylos viscida subsp. viscida
G. K. Helmkamp; E. A. Helmkamp
2007-3-17
11644
Amador
Eastern Sacramento Valley: Buena Vista Road, 0.3 mile north of Buena Vista.
104
Comment
UCR189470
Arctostaphylos viscida subsp. viscida
George K. Helmkamp, E. A. Helmkamp
2007-3-11
11616
El Dorado
Foothills, Northern Sierra Nevada Mountains, Darling Ridge along Darling Ridge Road. 5.2 miles northeast of the junction of Traverse Creek Road and CA-49
663
Comment
UCR115580
Arenaria douglasii
George K. Helmkamp, E. A. Helmkamp
2000-4-20
5400
San Luis Obispo
Central Coast, Prefumo Cyn., 1.2 mi south of Los Osos Valley Rd.
183
Comment
UCR234590
Arenaria kingii var. glabrescens
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18126
Alpine
Northern Sierra Nevada Mountains, Tamarack Road, 0.1 mile east of its junction with Blue Lakes Road
2485
Comment
UCR237723
Arenaria kingii var. glabrescens
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19379
Amador
Northern Sierra Nevada Mountains, Shot Rock Vista Rest Stop along CA-88 (Carson Pass Hwy), 1 mile west of the junction with Mormon Emigrant Trail
2329
Comment
UCR21763
Arida arizonica
George K. Helmkamp
1980-5-23
s.n.
San Bernardino
Eastern Mojave Desert, Kelbaker Road [Hwy 127], 2 miles north of Baker
280
Comment
UCR41045
Arnica chamissonis
George K. Helmkamp
1985-8-20
885 -12
Mono
Owens Valley, along the Owens River, at Big Springs Campground, 7 air miles NE of Mammoth Lakes, above Arcularius Ranch
2195
Comment
UCR190484
Arnica parryi
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12693
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road south of CA-88 at the picnic area just north of the lake
2470
Comment
UCR252791
Artemisia arbuscula subsp. arbuscula
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22097
Alpine
Northern Sierra Nevada Mountains, along CA-88, Carson Pass Hwy, 1.6 miles east of the Caples Lake dam
2486
Comment
UCR132543
Artemisia californica
George K. Helmkamp
2003-8-31
8106
Santa Barbara
Central Coast, Casmalia Hills, 4 mi west of Calif. Hwy 1 (south of Guadalupe) along Brown Road
183
Comment
UCR159338
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2004-7-7
8736
Santa Barbara
Central Coast, Termination of San Miguelito Road., 8.7 mi SW of I Street in Lompoc
244
Comment
UCR171538
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9723
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
UCR219096
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2009-9-5
15573
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
UCR67454
Artemisia douglasiana
George K. Helmkamp
1990-9-23
I- 17
Modoc
Warner Mtns, Goose Lake, within 0.1 mi of the Oregon border
1476
Comment
UCD129332
Artemisia ludoviciana subsp. incompta
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11130
Alpine
Northern Sierra Nevada Mountains. Wood's Lake Road, 0.3 mile N of the parking area for Wood's Lake. Wood's Creek.
2509
Comment
SEINET5586217
Artemisia tridentata subsp. vaseyana
George K. Helmkamp, Elizabeth Helmkamp
2013-1
22171
Alpine
Northern Sierra Nevada Mountains: along CA-89, 0.6 mile south of Markleeville.
1691
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
UCR209705
Artemisia tridentata subsp. vaseyana
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15372
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
1787
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
UCR195086
Asclepias cordifolia
George K. Helmkamp, E. A. Helmkamp
2007-5-27
12161
El Dorado
Northern Sierra Nevada Mountains Foothills, 0.7 mile down a hiking trail northeast of CA-49; trail starting 3.5 miles northwest of Placerville
430
Comment
CLARK-A1045-1275
Asclepias eriocarpa
George K. Helmkamp
1979-6-6
San Diego
Pala Creek along Creek, 3 miles north of Pala; Pechanga 7.5'Q
Comment
UCR160928
Asclepias eriocarpa
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9652
San Luis Obispo
Central Coast Range, along Calif. Hwy 58 (Carrizo Hwy), 22.2 miles east of Santa Margarita; near Camatta Creek
552
Comment
UCR182143
Asclepias fascicularis
George K. Helmkamp, E. A. Helmkamp
2006-10-23
11561
Amador
Central Valley/ Northern Sierra Nevada Foothills, along Calif. Hwy 16, 0.2 mile east of Waits Station, southwest of Plymouth
305
Comment
UCR247240
Aster eatonii
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22180 A
Alpine
Northern Sierra Nevada Mountains, along CA-89, 0.1 mile east of its junction with CA-4, Monitor Creek
1747
Comment
UCR252801
Aster eatonii
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
1793
Comment
RSA750422
Aster foliaceus var. parryi
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14067
El Dorado
along Mormon Emigrant Trail at Leek Spring, about 2 miles northwest of its junction with CA-88
2238
Comment
UCR230956
Aster foliaceus var. parryi
George K. Helmkamp, E. A. Helmkamp
2010-8-7
16750
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.4 mile east of its junction with Mormon Emigrant Trail, at Jim Quinn Spring
2136
Comment
UCR13969
Aster frondosus
George K. Helmkamp
1973-9-25
s.n.
San Bernardino
San Bernardino Mtns, Big Bear Lake
2058
Comment
UCR229424
Aster integrifolius
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18079
Alpine
Northern Sierra Nevada Mountains, south side of Bear Valley Village, along CA Hwy 4
2169
Comment
UCR201924
Aster occidentalis
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14043
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail 2.4 miles northwest of its junction with CA-88
2271
Comment
RSA715290
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2005-9-23
9925
El Dorado
Northern Sierra Nevada Mts.: Wright's Lake Tie Road (Forest Road 32) 1 mile west of its junction with Wright's Lake Road (Forest Road 4) NNE of Kyburz
2043
Comment
UCR170331
Aster occidentalis var. occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9925
El Dorado
Northern Sierra Nevada Mountains, Wrights Lake Tie Road (Forest Road 32) 1.0 mi west of its junction with Wrights Lake Road (Forest Road 4) NNE of Kyburz
2043
Comment
UCR176202
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11222
Nevada
Northern Sierra Nevada Mtns, just south of I-80 on Lake Valley Rd
1755
Comment
UCR248411
Aster occidentalis var. occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
22005
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
UCR191124
Aster oregonensis
George K. Helmkamp, E. A. Helmkamp
2007-8-29
12831
Yuba
Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.5 mile south of Camptonville
817
Comment
SD224949
Astragalus aridus
G. K. Helmkamp
1998-4-4
3107
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
SBBG94891
Astragalus crotalariae
G. K. Helmkamp
1975-2-17
s.n.
Riverside
St Hwy 111 at Salt Crk, NE side of Salton Sea
Comment
CLARK-A1045-700
Astragalus douglasii
George K. Helmkamp
1977-7-5
San Bernardino
San Bernardino Mountains north of State highway 38 at Fish Creek; ; Moonridge 7.5'Q
2133
Comment
SEINET948240
Astragalus douglasii
G. K. Helmkamp, E. A. Helmkamp
1999-1
5048
Nevada
Northern Sierra Nevada Range: Prosser Creek at Hobart Mills, ca. 50-100 yards E of Hwy CA-89, & NE of Lake Tahoe (Hobart Mills 7.5' USGS Q)
1707
Comment
CLARK-A1045-1079
Astragalus lemmonii
George K. Helmkamp
1979-6-12
Mono
Owens River near River, 4.5 miles south of Arcularius Ranch; ; Whitmore Hot Springs 7.5'Q
2133
Comment
UCR101646
Astragalus lentiginosus var. borreganus
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2772
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
SBBG103905
Astragalus lentiginosus var. variabilis
G. K. Helmkamp
1993-4-24
San Bernardino
between Kelbaker Rd and the Granite Mtns, 5.1 mi NE of US 40
1219
Comment
UCR101039
Astragalus lentiginosus var. variabilis
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3314
San Bernardino
Mojave Desert, Between hwy 58 & the Railroad at Edwards Siding (c. halfway between Mojave & Boron).
732
Comment
CLARK-A1045-813
Astragalus nuttallianus var. imperfectus
George K. Helmkamp
1977-5-14
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
UCR159318
Astragalus nuttallii var. nuttallii
George K. Helmkamp, E. A. Helmkamp
2004-7-14
8768
Santa Barbara
Southern Central Coast, Surf, NW of Lompoc
46
Comment
CLARK-A1045-1386
Athyrium filix-femina
George K. Helmkamp
1977-8-5
Mariposa
Sierra Nevada Porcupine Flats Campground; beside creek; ; Yosemite Falls 7.5'Q
2590
Comment
UCD136269
Athyrium filix-femina
G. K. Helmkamp; E. A. Helmkamp
2007-8-16
12766
Amador
Northern Sierra Nevada Mountains: along the south side of Bear River Reservoir just east of the spillway.
1777
Comment
UCR106421
Athysanus pusillus
George K. Helmkamp, A. C. Sanders
1997-3-15
1488
Riverside
Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal.
488
Comment
UCR184928
Athysanus pusillus
George K. Helmkamp, E. A. Helmkamp
2007-3-10
11602
El Dorado
Northern Sierra Nevada Mountains Foothills, Rattlesnake Bar Rd, 3.0 miles southwest of Calif. Hwy 49, SW of Pilot Hill
390
Comment
UCR30074
Atrichoseris platyphylla
George K. Helmkamp
1983-4-5
483- 42
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
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
UCR27486
Atriplex canescens
George K. Helmkamp
1982-9-17
s.n.
Kern
Transverse Range; Mt. Pinos Region, along Cuddy Valley Road, 0.8 mi west of Lockwood Valley Rd
Comment
SD224920
Atriplex elegans var. fasciculata
G. K. Helmkamp
1998-3-30
3000
San Bernardino
Mojave Desert: Dale Dry Lake, E of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR133222
Atriplex lentiformis subsp. torreyi
George K. Helmkamp
1993-10-5
39- 03
Inyo
Owens Valley, Pleasant Valley, north of Bishop, at edge of Owens River
1284
Comment
SD148188
Atriplex phyllostegia
G. K. Helmkamp, E. A. Helmkamp
2001-4-27
6547
Kern
Enos Lane Road, 1.9 miles south of California 119.
60
Comment
IRVC29532
Atriplex semibaccata
G. K. Helmkamp, Elizabeth Helmkamp
1999-11-10
5328 A
San Luis Obispo
Morro Bay State Park at the south end of the marina. Central Coast
6
Comment
UCR118354
Atriplex triangularis
George K. Helmkamp, E. A. Helmkamp
2000-9-1
5957
San Luis Obispo
Los Osos, c. 0.5 miles NW of Hazard Cyn., between Howard St. and sand dunes
6
Comment
SD148186
Atriplex watsonii
G. K. Helmkamp, E. A. Helmkamp
2000-9-1
5949
San Luis Obispo
Los Osos; 0.5 mile northwest of Hazard Canyon, between Howard St. and sand dunes.
6
Comment
SD255606
Avena barbata
George K. Helmkamp
2014-3-21
22623
Sutter
Sacramento Valley: 2.8 miles WSW (257a^z) of Sutter, along CA-20 at the junction with Morehead Road. (Sutter Buttes 7.5'Q)
10
Comment
UCR258180
Avena fatua
George K. Helmkamp, Amy Barnes
2013-3-28
20245
Placer
Eastern Sacramento Valley, NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65
43
Comment
UCR96383
Azolla filiculoides
George K. Helmkamp
1996-9-29
1254
Mono
Spring [Layton Springs] on the east side of Lake Crowley 3.5 miles SSE of Benton Crossing
2073
Comment
UCD129426
Baccharis pilularis
G. K. Helmkamp; E. A. Helmkamp
2006-10-8
11496
Calaveras
Northern Sierra Nevada Mountains Foothills. Along Hwy CA-26, 0.8 miles east of CA-49 in the vicinity of Mokulumne Hill.
488
Comment
UCR146965
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8847
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR182298
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2006-10-8
11496
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
RSA567423
Baccharis sergiloides
George K. Helmkamp
1993-9-22
34 -7
San Bernardino
6.7 mi. up Burns Canyon from jct of Pioneertown and Pipes Cyn Rds.
1529
Comment
RSA489398
Baileya pauciradiata
George K. Helmkamp
1988-2-28
s.n.
Imperial
just N of Signal Mts, S of Hwy deserticola.
30
Comment
UCR122574
Baileya pleniradiata
George K. Helmkamp, E. A. Helmkamp
2001-3-24
6315
San Bernardino
Southcentral Mojave Desert, 0.3 mile west of CA Hwy 247 on Pipes Canyon Road
1037
Comment
UCR132752
Balsamorhiza sagittata
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
35.6 miles NW of Canby along Calif. Hwy 139
1280
Comment
RSA0035849
Barbarea orthoceras
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20349
Placer
Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax
561
Comment
UCR61732
Barbarea orthoceras
George K. Helmkamp
1990-4-1
s.n.
San Luis Obispo
West Cuesta Ridge, c. 3 mi west of US Hwy 101
671
Comment
UCR107368
Bellardia trixago
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3725 A
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; beside Guadalupe Reservoir
201
Comment
UCR123950
Bellis perennis
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6993
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
UCR161234
Bellis perennis
George K. Helmkamp, E. A. Helmkamp
2004-12-6
8875
San Luis Obispo
Central Coast, Arroyo Grande Community Center, Ash and Elm Streets
30
Comment
SBBG129261
Blepharipappus scaber
G. K. Helmkamp, A. Barnes
2014-5-8
22838
Amador
Tonzi Rd, 0.4 mi E of its jct with CA-124, 4.5 air mi NE of Ione
188
Comment
HSC79071
Boerhavia triquetra
G. K. Helmkamp
1983-10-8
- 19
Riverside
TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road
762
Comment Read comments Feb 18 2013
UCR249143
Boykinia occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20763
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.2 miles north of the Yuba County line
901
Comment
UCR104965
Brandegea bigelovii
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2730
Riverside
Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd.
122
Comment
UCR190198
Brassica geniculata
George K. Helmkamp, E. A. Helmkamp
2007-9-19
12979
El Dorado
Northern Sierra Nevada Mountains Foothills, along Greenstone Road just south of its junction with US-50 (east of Shingle Springs)
427
Comment
UCR194718
Brassica geniculata
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13085
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
UCR231879
Brassica geniculata
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17022
Placer
Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 0.5 mile north of Forest Hill Road in Foresthill, near intersection with Mayflower Rd.
948
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
UCR257136
Brassica kaber
George K. Helmkamp, Amy Barnes
2014-3-21
22611
Sutter
Sacramento Valley, Along CA-20 (Colusa Hwy), 0.3 mile west of South Tarke Road, 3.75 miles east of Meridian
13
Comment
UCR207827
Brassica rapa
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14450
San Joaquin
San Joaquin Valley, junction of Collier Road and CA-88, about 0.2 mile north of the Mokelumne River
43
Comment
CLARK-A1045-1209
Brassica tournefortii
George K. Helmkamp
1977-1-22
Imperial
Yuha Desert Mount Signal [area], 2 miles south of State Highway 98, gravel pit; Mount Signal 7.5'Q
Comment
UCR89832
Brassica tournefortii
George K. Helmkamp
1994-3-10
42 6
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
SEINET2055878
Brickellia lemmonii
G. K. Helmkamp, E. A. Helmkamp
2000-9-13
6037
Riverside
Chiricahua Mins; Pinery Cyn. 3.0 mi SE of Hwy AZ 181
1737
Comment Read comments May 3 2014
CLARK-A1045-526
Brickellia oblongifolia var. linifolia
George K. Helmkamp
1979-6-5
#3
San Bernardino
San Bernardino Mountains limestone slope at Spring; Big Bear City 7.5'Q
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
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
UCR206105
Briza minor
George K. Helmkamp, E. A. Helmkamp
2009-5-24
14765
El Dorado
Sierra Nevada Mountains Foothills, Sand Ridge Road, 1.3 miles east of the Cosumnes River and CA-49
381
Comment
UCR257099
Brodiaea elegans subsp. elegans
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20606
Amador
Northern Sierra Nevada Mountains Foothills, Stony Creek Road, 3.6 miles southwest of Jackson
293
Comment
SEINET3271573
Bromus
George K. Helmkamp, E. A. Helmkamp
2009-7-22
15246
El Dorado
Sierra Nevada Mountains; Wrights Lake Road, 2.7 miles north of its junction with US-50, c. 0.25 mi. due S of Chimney Flat
2000
Comment
UCR242630
Bromus arenarius
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15821
San Joaquin
Northeast San Joaquin Valley, junction of CA-88 and CA-12, about 6 miles NE of Lockeford, 1.2 mi. NE of Clements
40
Comment
SEINET3271576
Bromus carinatus
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15092
El Dorado
Sierra Nevada Mountains; Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
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
UCR197312
Bromus carinatus
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13779
El Dorado
Northern Sierra Nevada Mountains, north side of CA-88, 2.1 miles northeast of the junction with Mormon Emigrant Trail
2340
Comment
CAS-BOT-BC444017
Bromus carinatus var. carinatus
George K. Helmkamp; Elizabeth Helmkamp
2013-6-19
20888
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail, 8.3 miles east of its junction with Hwy E-16 at Jenkinsons Lake.
443
Comment
UCR257807
Bromus carinatus var. carinatus
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19427
Sierra
Northern Sierra Nevada Mountains, along Hwy CA-89, c. 8 miles north of the Nevada County line
1823
Comment
UCD58584
Bromus diandrus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-11
10386
Nevada
Northern Sierra Nevada Mountains. Cedarsong Road, 0.1 mile NE of CA-Hwy 49 (NW of Nevada City).
637
Comment
UCR242798
Bromus diandrus
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15872
Solano
Northern San Joaquin Valley, Pitt School Road, 3.8 miles south of its junction with I-80 and south of Dixon
21
Comment
UCR253506
Bromus diandrus
George K. Helmkamp
2014-3-11
22542
Nevada
Sierra Nevada Mountains Foothills, along Wolf Road, 0.1 mile north of its junction with Matthew Lane, NW of Higgins Corner
413
Comment
RSA0053700
Bromus hordeaceus
G. K. Helmkamp, E. A. Helmkamp
2013-5-24
20694
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
SEINET3271605
Bromus hordeaceus
George K. Helmkamp, E. A. Helmkamp
2007-3-14
11635
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
SEINET8465031
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
UCR258237
Bromus hordeaceus
George K. Helmkamp, Amy Barnes
2013-3-28
20236
Placer
Eastern Sacramento Valley, NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65
43
Comment
UCR102929
Bromus rubens
George K. Helmkamp
1998-2-5
2646
Riverside
Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd.
335
Comment
UCD58958
Bromus rubens subsp. rubens
G. K. Helmkamp
2004-2-29
8317
San Luis Obispo
San Luis Obispo Co.: Central Coast: Nipomo Mesa, Nipomo, Orchard Ave. 0.1 mi. NW of Division St.
115
Comment
UCR235497
Bromus sterilis
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18995
Calaveras
Northern Sierra Nevada Mountains Foothills, at a crossing of Murray Creek along Murray Creek Road; 1.8 miles east of Pope Road in San Andreas
351
Comment
UCR114349
Bromus suksdorfii
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2267
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCD60218
Bromus tectorum
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-24
10534
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).
1505
Comment
UCR124000
Caesalpinia virgata
George K. Helmkamp, E. A. Helmkamp
2001-4-14
6466
Riverside
Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10)
46
Comment
CLARK-A1045-1325
Cakile maritima
George K. Helmkamp
1977-10-15
San Diego
Imperial Beach in Border Field State Park; isandy area just off beach, ; Imperial Beach 7.5'Q
Comment
UCR158752
Cakile maritima
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8700
Santa Barbara
Central Coast, Ocean Park at Surf, NW of Lompoc
6
Comment
CLARK-A1045-129
Calandrinia ambigua
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q
Comment
SEINET4560896
Calandrinia ciliata
George K. Helmkamp, E. A. Helmkamp
2012-1
18600
Amador
Northern Sierra Nevada Mountains Foothills: along CA-124 (E Plymouth Hwy), 1.2 miles northeast of Ione.
169
Comment
UCR250090
Calandrinia ciliata
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20206
Calaveras
Eastern San Joaquin Valley, Milton, Jenny Lind Road (Milton Rd.), 7.4 miles south of its junction with CA-26
120
Comment
UCR272771
Calandrinia ciliata
George K. Helmkamp
2014-3-14
22566
Amador
West end Sacramento Valley, Willow Creek Road, 1.1 miles south of Hwy E-16
253
Comment
CLARK-A1045-1328
Calandrinia ciliata var. menziesii
George K. Helmkamp
1978-4-23
San Luis Obispo
Morro Bay coastal strand; Morro Bay North 7.5' Q
Comment
UCR188499
Calocedrus decurrens
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13018
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
SEINET11261459
Calochortus albus
George Helmkamp, E. A. Helmkamp
2012-5-5
18912
Placer
Northern Sierra Nevada Mountains Foothills on Lake Clementine Road, 1.2 miles W of the junction with Foresthill Road. 0.3 air miles SE (123 degrees) of Clementine Dam on the American River.; 0
396
Comment
UCR187516
Calochortus albus
George K. Helmkamp, E. A. Helmkamp
2007-4-20
11757
El Dorado
Foothills, Northern Sierra Nevada Mountains, junction of French Creek Road and Lost Creek road just north of Frenchtown
366
Comment
UCR234581
Calochortus albus
George K. Helmkamp, E. A. Helmkamp
2011-6-2
17437
Nevada
Northern Sierra Nevada Mountains Foothills, Lake Wildwood, along Pleasant Valley Road, 1.2 miles north of its junction with CA-20
433
Comment
UCR235615
Calochortus albus
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18912
Placer
Northern Sierra Nevada Mountains Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi. SE (123 deg. ) of Clementine Dam on the American River
396
Comment
UCR251246
Calochortus albus
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20668
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
UCR197594
Calochortus coeruleus
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13648
El Dorado
Northern Sierra Nevada Mountains, Cat Creek Road, 0.1 mile north of its junction with CA-88, jct. is 4.2 miles east of Cook's Station
1662
Comment
UCR176315
Calochortus minimus
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10892
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
UCR258550
Calochortus minimus
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20420
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing Road, 0.1 mile south of its junction with Mormon Emigrant Trail
1261
Comment
UCR173527
Calochortus monophyllus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10409
Nevada
Northern Sierra Nevada Foothills, San Juan Ridge area at North Columbia, c. 9.3 mi. east of Calif. Hwy 49
884
Comment
UCR198430
Calochortus monophyllus
George K. Helmkamp, E. A. Helmkamp
2008-4-30
13366
El Dorado
Sierra Nevada Mountains Foothills, Bear Creek Road and Daffodil Road, 0.6 mile northeast of the junction of Bear Creek and Meadow Brook Road, south of Georgetown
723
Comment
UCR242763
Calochortus monophyllus
George K. Helmkamp, E. A. Helmkamp
2011-5-24
17368
El Dorado
Northern Sierra Nevada Mountains Foothills, Mesquite Road, 7.5 miles south of its junction with Wentworth Springs Road
1073
Comment
UCR217842
Calochortus venustus
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16181
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 3.3 miles east of the village of Sutter Creek
413
Comment
SBBG126071
Calycadenia fremontii
G. K. Helmkamp with E. A. Helmkamp
2009-6-13
15000
Shasta
Wilson Hill Rd, 2.4 mi S of its jct with CA-44 in Shingletown
857
Comment
UCR29780
Calycoseris wrightii
George K. Helmkamp
1983-3-24
383- 14
Riverside
Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road
336
Comment
CLARK-A1045-237
Calyptridium monandrum
George K. Helmkamp
1978-4-1
Riverside
Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q
Comment
UCR218101
Calyptridium monospermum
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16496
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
UCR229411
Calyptridium monospermum
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17950
El Dorado
Northern Sierra Nevada Mountains, Omo Ranch Road, 7.4 miles southeast of Omo Ranch, 1.9 mi. NW (304 deg. ) airline of Hwy 88 junction
1372
Comment
UCR250061
Calyptridium monospermum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20867
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
SD148182
Calystegia macrostegia subsp. intermedia
G. K. Helmkamp, E. A. Helmkamp
2001-4-29
6598
San Luis Obispo
Profumo Canyon Road, 2.8 miles west of Los Osos Valley Road.
91
Comment
UCR191150
Calystegia malacophylla subsp. malacophylla
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12305
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 5.4 miles south of Mormon Emigrant Trail, generally east of Jenkinson Lake
1372
Comment
UCR157808
Calystegia malacophylla subsp. pedicellata
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4199
Kern
Tehachapi Mountains, Tehachapi Mountain Park, 4.2 miles SW of Highline Road along Water Canyon Road
1768
Comment
CLARK-A1045-674
Camissonia brevipes
George K. Helmkamp
1977-4-24
Inyo
Panamint Mountains Wildrose Campground; dry slope; ; Emigrant Pass 7.5' Q
1249
Comment
SD148108
Camissonia campestris subsp. campestris
G. K. Helmkamp, E. A. Helmkamp
2001-5-2
6622
San Luis Obispo
La Panza Range: CA-58, 11.2 miles east of Santa Margarita.
487
Comment
SEINET235063
Camissonia campestris subsp. campestris
G. K. Helmkamp, E. A. Helmkamp
1998-5-13
3553
Kern
Greenhorn Mtns. Southern Sierra Nevada: 6.5 mi. SW of Woody along Bakersfield/Glennville Rd (NE of Bakersfield). Near H
396
Comment
UCR100942
Camissonia campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3196
Kern
SW of Maricopa 1.7 mi NW of Calif. hwy 33 on Elkhorn Grade Rd.
396
Comment
UCR101025
Camissonia campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3231
San Luis Obispo
Soda Lake Rd, 6.6 mi. NW of jct with Calif. hwy 33 (roughly west 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
CLARK-A1045-803
Camissonia chamaenerioides
George K. Helmkamp
1978-5-6
#1
San Bernardino
Mesquite Mountains 1.5 miles east of Pass, steep limestone slope; Clark Mt. 15'Q
Comment
RSA697219
Camissonia cheiranthifolia subsp. cheiranthifolia
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7021
Humboldt
North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay.
15
Comment
UCR50961
Camissonia claviformis
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
UCR100860
Camissonia claviformis subsp. yumae
George K. Helmkamp, E. A. Helmkamp
1998-3-18
2868
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the junction of Hwy Calif Hwy 98 with I-8)
46
Comment
VVC932
Camissonia claviformis var. claviformis
G. K. Helmkamp
1998-4-9
3312
Kern
Mojave Desert, Between hwy 58 & the Railroad at Edwards Siding (ca. halfway between Mojave & Boron).
732
Comment
UCR98135
Camissonia confusa
George K. Helmkamp
1986-4-7
756
San Bernardino
Little San Bernardino Mountains, Vicinity of Big Morongo Nature Conservancy Preserve, south of town of Morongo Valley; just east of and parallel to Hwy 62, above Indian Ave.
579
Comment
UCR110976
Camissonia intermedia
George K. Helmkamp
1998-6-27
4086
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
UCR161777
Camissonia ovata
George K. Helmkamp, E. A. Helmkamp
2005-5-17
9481
San Luis Obispo
Central Coast, 1.5 mi WNW of Piedras Blancas at Mile 64 of Calif. Highway 1
9
Comment
CLARK-A1045-210
Camissonia pallida
George K. Helmkamp
1979-4-18
Riverside
Indio Hills along Dillon Road; Lost Horse Mtn. 15'Q
Comment
SEINET3093300
Camissonia pallida
G. Helmkamp, A. C. Sanders, P. MacKay, T. Thomas
1997-2-8
19674
Riverside
Colorado Desert: Palm Springs, Indian Ave at Las Vegas Rd, below mouth of Chino Canyon. Palm Springs 7.5' Quad.
188
Comment
UCR90226
Camissonia refracta
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
RSA709064
Camissonia strigulosa
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9365
San Luis Obispo
Central Coast: Corbett canyon, 2.3 miles N of Hwy CA-227 in Arroyo Grande.
81
Comment
SD167182
Cardamine californica
G. K. Helmkamp, E. A. Helmkamp
2005-3-5
9008
San Luis Obispo
Santa Lucia Wilderness, north of Lake Lopez, Upper Lopez Canyon Road, 7.2 miles north of junction with Lopez Road and at Water End Road.
174
Comment
SEINET3238870
Cardamine hirsuta
George K. Helmkamp, E. A. Helmkamp
2008-2-28
13131
El Dorado
Foothills, northern Sierra Nevada Mountains: Lake Oaks, Mobile Home Park, Diamond Springs.
530
Comment
UCD114516
Cardamine hirsuta
G. K. Helmkamp; E. A. Helmkamp
2007-3-5
11597
El Dorado
northern Sierra Nevada Mountains; junction of Rock Creek Road and Highway CA-49, north of Chili Bar.
457
Comment
UCR198451
Cardamine hirsuta
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13167
Amador
Sierra Nevada Mountains Foothills, Middle Bar Road, 3.7 miles south of its junction with CA-49 just south of Jackson
345
Comment
UCR161214
Cardamine oligosperma
George K. Helmkamp, E. A. Helmkamp
2004-12-6
8871
San Luis Obispo
Central Coast, Arroyo Grande Community Center, Ash and Elm Streets
30
Comment
UCR121776
Cardionema ramosissimum
George K. Helmkamp
2002-4-20
7467
San Luis Obispo
Central Coast, Los Osos, 0.2 mile northwest of Monarch Lane
9
Comment
RSA0116846
Carex athrostachya
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15387
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.
2637
Comment
UCD140154
Carex athrostachya
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12525
Amador
Northern Sierra Nevada Mountains: along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake.
2316
Comment
UCR173766
Carex deweyana subsp. leptopoda
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10322
Amador
Northern Sierra Nevada foothills, Climax Road southwest of Pine Grove, 0.1 mile west of Calif. Hwy 88
701
Comment
RSA755556
Carex feta
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15490
El Dorado
Robbs Peak Road at the junction with Ice House Road, 21.6 miles north of CA-50
1716
Comment
UCR122343
Carex fracta
George K. Helmkamp, Elizabeth Helmkamp
2000-7-19
5897
Mono
Sierra Nevada Mountains., West side of Lake Mary, southwest of Mammoth Lakes
2652
Comment
UCR57515
Carex fracta
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
UCR91713
Carex fracta
George K. Helmkamp
1996-6-11
1130
San Bernardino
San Bernardino Mtns., 1.2 miles SW of Tulip Lane, city of Big Bear Lake
2143
Comment
HSC83374
Carex lanuginosa
G. K. Helmkamp
1985-8-20
88522
Mono
Along the Owens River, at Big Springs Campground, 7 mi. NE of Mammoth Lakes, above Arcularius Ranch
2195
Comment
UCD140496
Carex lenticularis
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10921
El Dorado
Northern Sierra Nevada Mtns: 0.3 mile west of the junction of Wright's Lake Road and the road from Ice House Reservoir. Silver Creek.
2012
Comment
RSA351399
Carex lenticularis var. lipocarpa
George K. Helmkamp
1985-8-23
885 -39
Mono
Mammoth Lakes, edge of Lake Mamie.
2591
Comment
UCR257671
Carex multicostata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19568
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 1.4 miles west of its junction with CA-88
2287
Comment
UCR87705
Carex specifica
George K. Helmkamp, E. A. Helmkamp
1995-6-22
s.n.
Calaveras
Sierra Nevada Mtns, along Calif. Hwy 4, 2.5 mi NE of Arnold
1479
Comment
RSA351398
Carex straminiformis
George K. Helmkamp
1985-8-20
885 -14
Mono
Along the Owens River at Big Springs Campground, 7 airline miles NE of Mammoth Lakes, above Arcularius Ranch.
2195
Comment
UCR15010
Carex straminiformis
George K. Helmkamp
1976-6-22
s.n.
Mono
Sierra Nevada Mtns, Mammoth Lakes Village, roadside
2393
Comment
UCR174296
Carex subfusca
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10721
El Dorado
Northern Sierra Nevada Mountains, 0.8 mile east of Ice House Road on the road to Wright's Lake
1672
Comment
UCR91930
Carex subfusca
George K. Helmkamp
1996-6-11
1146
San Bernardino
San Bernardino Mountains, Along 2N11 SW of the city of Big Bear Lake, c. 0.5 mile west of [2N10] Mill Creek Road
2256
Comment
UCR245598
Carex tompkinsii
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19108
Calaveras
Northern Sierra Nevada Mountains, Winton Road, 4.1 miles east of its junction with CA-26, NE of West Point
1072
Comment
UCR252955
Carex vesicaria var. vesicaria
George K. Helmkamp, Belinda Pesheck
2013-7-14
21077
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road
2468
Comment
UCR103961
Carthamus baeticus
George K. Helmkamp
1997-6-21
2062
San Luis Obispo
Central Coast, Questa Ridge north of San Luis Obispo and 0.4 mi west of radio towers
854
Comment
RSA0047742
Castilleja affinis subsp. affinis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-5-24
20699
Calaveras
Along Hwy CA-26, 1.4 miles northeast of its junction with Jesus Maria Road
457
Comment
UCR130987
Castilleja angustifolia
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3523
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
UCR90234
Castilleja angustifolia
George K. Helmkamp
1995-3-26
s.n.
Inyo
Northern Mojave Desert, Death Valley National Monument [now National Park], [Grapevine Mountains], Titus Canyon
Comment
UCR219038
Castilleja applegatei
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16509
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
UCR257016
Castilleja attenuata
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20570
Amador
Sierra Nevada Mountains, Fiddletown Road, c. 9 miles northeast of its junction with E-16/Shenandoah Rd. near Plymouth
665
Comment
UCR103990
Castilleja exserta
George K. Helmkamp
1998-4-3
3093
Riverside
Coachella Valley, Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging staion along the creek
747
Comment
RSA794941
Castilleja exserta subsp. exserta
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17125
Colusa
Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
UCR118273
Castilleja exserta subsp. exserta
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5525
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
UCR163775
Castilleja exserta subsp. exserta
George K. Helmkamp, E. A. Helmkamp
2005-3-30
9276
San Luis Obispo
Outer South Coast Ranges, La Panza Range along Calif. Highway 58 in Calf Canyon, 3.0 mi NE of Santa Margarita
335
Comment
UCR104782
Castilleja foliolosa
George K. Helmkamp
1997-3-8
1460
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
UCR163648
Castilleja foliolosa
George K. Helmkamp, E. A. Helmkamp
2005-3-30
9242
San Luis Obispo
Outer South Coast Ranges, Pozo Road, 5.5 mi east of [Santa Margarita Lake Road]; W end of Garcia Mountains
503
Comment
UCR158440
Castilleja latifolia
George K. Helmkamp
2004-6-15
8641
San Luis Obispo
Central Coast, Between Oso Flaco Lake and the Pacific Ocean, c. 0.3 mi WNW of the lake
9
Comment
UCR115822
Castilleja linariifolia
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5862
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
UCR233411
Castilleja miniata subsp. miniata
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18243
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
UCR13914
Castilleja pilosa
George K. Helmkamp
1973-6-13
s.n.
Inyo
Owens Valley, Owens River near Pleasant Valley
1372
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
UCR178642
Castilleja tenuis
George K. Helmkamp, E. A. Helmkamp
2006-9-7
11356
El Dorado
Northern Sierra Nevada Mountains, Ice House Road. Robbs Valley near Robbs Hut junction
1720
Comment
RSA0045231
Catalpa speciosa
George K. Helmkamp, E. A. Helmkamp
2006-9-29
11456
El Dorado
Pleasant Valley Rd 0.1 mile east of Patterson Dr.
534
Comment
UCR208277
Caucalis microcarpa
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14634
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 13.6 miles east of its junction with Forest Hill Road in Foresthill
771
Comment
UCR121856
Caulanthus cooperi
George K. Helmkamp, E. A. Helmkamp
2001-3-24
6309
San Bernardino
Southcentral Mojave Desert, 0.3 mile west of CA Hwy 247 on Pipes Canyon Road
1037
Comment
SBBG128618
Ceanothus cordulatus
G. K. Helmkamp, E. A. Helmkamp
2012-6-19
19222
Placer
Devil's Thumb Rd (Deadwood Rd), 1.2 mi S of its jct with Foresthill Rd
1648
Comment
SD236393
Ceanothus cordulatus
G. K. Helmkamp
2008-6-17
13670
Amador
Northern Sierra Nevada Mountains: Bear River Reservoir road, 0.1 mile south of its junction with CA-88.
1990
Comment
UCR134467
Ceanothus cordulatus
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4342
Inyo
Sierra Nevada Mountains, Onion Valley, west of Independence, Inyo National Forest
2805
Comment
UCR237075
Ceanothus cordulatus
George K. Helmkamp, E. A. Helmkamp
2012-5-22
19047
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.6 miles southeast of US-50 in Kyburz
1495
Comment
SD241942
Ceanothus integerrimus
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15900
Placer
Siera Nevada Mountains Foothills: Rattleshake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q)
308
Comment
SEINET4178631
Ceanothus integerrimus
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16682
Calaveras
Northern Sierra Nevada Mountains: along CA-4 at the Arnold Byway, about 0.3 mile northeast of Arnold.
1244
Comment
UCR140067
Ceanothus integerrimus
George K. Helmkamp
2004-4-14
8443
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR224241
Ceanothus integerrimus
George K. Helmkamp, E. A. Helmkamp
2010-4-24
15938
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
UCR246580
Ceanothus integerrimus
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19133
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 1.5 miles south of its junction with CA-88, 5.0 mi. west (267 deg. ) of Bear River Reservoir dam
1590
Comment
UCR122497
Ceanothus leucodermis
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6606
San Luis Obispo
South Coast Range, La Panza Range, Calf Canyon, CA Hwy 58, 4.5 mi east of Santa Margarita
335
Comment
UCR114623
Ceanothus perplexans
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4649
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
UCR130673
Ceanothus perplexans
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4636
San Diego
Dodge Valley, 3.5 mi SE of Oak Grove at junction of Hwy-79 & Chihuahua Valley Rd.
960
Comment
UCR191062
Ceanothus prostratus
George K. Helmkamp, E. A. Helmkamp
2007-5-23
12054
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 11.1 miles northeast of Foresthill
1463
Comment
UCR253142
Ceanothus prostratus
George K. Helmkamp, E. A. Helmkamp
2013-11-27
22494
El Dorado
Sierra Nevada Mountains Foothills, Capp's Crossing Road, 0.4 mile southeast of its junction with Mormon Emigrant Trail
1204
Comment
UCR161660
Ceanothus thyrsiflorus
George K. Helmkamp, E. A. Helmkamp
2005-5-17
9490
Monterey
Central Coast, 0.9 mi south of Plaskett (N of Gorda); along Calif. Highway 1
90
Comment
UCR235572
Ceanothus tomentosus
George K. Helmkamp, E. A. Helmkamp
2012-5-3
18889
El Dorado
Northern Sierra Nevada Mountains Foothills, Forebay Road, 5.3 miles NW of Pollock Pines
918
Comment
CLARK-A1045-1313
Ceanothus tomentosus subsp. olivaceus
George K. Helmkamp
1977-9-24
San Diego
.5 mile west of Camino Ruiz and .25 mile south of Mira Mesa Boulevard; Adenostoma fasciculata; Del Mar 7.5'Q
Comment
UCR67463
Centaurea cyanus
George K. Helmkamp
1990-9-23
I- 12
Modoc
Warner Mtns, Goose Lake, within 0.1 mi of the Oregon border
1476
Comment
UCR197034
Centaurea diffusa
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13900
Alpine
Eastern Sierra Nevada Mountains, Carson River Road at its east junction with CA-88 and Diamond Valley Road
1677
Comment
RSA0045222
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11461
Amador
Along Calif. Hwy 49 near Enterprise, 1.8 miles south of El Dorado Co. line.
274
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
SEINET3245715
Centaurea solstitialis
G. K. Helmkamp, E. A. Helmkamp
2007-1
13029
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
UCD130097
Centaurea solstitialis
G. K. Helmkamp; E. A. Helmkamp
2007-10-7
13073
Butte
Northern Sacramento Valley: Biggs East Hwy, 1.6 miles east of CA-99 at Biggs.
32
Comment
UCR146656
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2004-10-1
8833
San Luis Obispo
Central Coast; Outer South Coast Range, 3.4 miles east of Lopez Lake along Hi Mountain Road and beside Arroyo Grande Creek
171
Comment
UCR194725
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13080
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
UCR123173
Centaurium davyi
George K. Helmkamp, E. A. Helmkamp
2002-4-16
7415
San Luis Obispo
Central Coast, Park Ridge 0.5 mi east of Morro Bay near Turri Road
76
Comment
UCR231005
Centaurium muehlenbergii
George K. Helmkamp, E. A. Helmkamp
2011-6-22
17615
Amador
Northern Sierra Nevada Mountains Foothills, Sutter-Ione Road, 2.7 miles west of its junction with CA-49, 2.9 mi. SW (221 deg. ) of Amador City
308
Comment
SEINET4560908
Centaurium venustum
George K. Helmkamp, E. A. Helmkamp
2011-1
17703
Calaveras
Northern Sierra Nevada Mountains Foothills: Winton Road, 6.7 miles east of its junction with CA-26 in West Point.
1192
Comment
SD234820
Centromadia fitchii
G. K. Helmkamp, E. A. Helmkamp
2006-10-6
11475
Amador
Northern Sierra Nevada Mountains: along Hwy CA-49, 1.1 miles south of Plymouth (Amador City 7.5'Q)
313
Comment
SD237327
Centromadia fitchii
G. K. Helmkamp, E. A. Helmkamp
2009-8-28
15537
Sacramento
Northern Sacramento Valley: along Latrobe Road, 1.1 miles west of the El Dorado County line, 3 mi. NE (36a^z) of Rancho Murieta.
139
Comment
SD234350
Cerastium fontanum subsp. vulgare
G. K. Helmkamp
2004-5-9
8573
San Luis Obispo
Central Coast: Mesa Dunes Mobile Home Park along Mesa View Dr. (Hwy CA-1), 0.2 mi S of the jct of Halcyon Rd (Oceano 7.5'Q)
60
Comment
UCR184935
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
UCR206305
Cercis occidentalis
George K. Helmkamp, E. A. Helmkamp
2009-6-13
15011
Shasta
Southern Cascade Range Foothills, Wilson Hill Road, 6.6 miles south of its junction with CA-44 in Shingletown and about 1 mile north of Manton
640
Comment
UCR122442
Cercocarpus betuloides var. betuloides
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7597
Madera
Western Sierra Nevada foothills, Bass Lake Road, 2.2 miles southeast of the junction with CA Hwy 41
976
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
CLARK-A1045-762
Chaenactis macrantha
George K. Helmkamp
1977-5-29
San Bernardino
Mojave Desert Stuckey's; Cima Road at Interstate Highway 15; Mescal Range 15'Q
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
CLARK-A1045-645
Chaenactis stevioides
George K. Helmkamp
1977-5-29
San Bernardino
Cima Dome Stuckey's [Cima Road at Interstate Highway 15]; Mescal Range 15'Q
Comment
UCR250190
Chamaebatia foliolosa
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20872
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
SD237628
Chamaesaracha nana
G. K. Helmkamp, E. A. Helmkamp
2009-6-29
15072
El Dorado
Sierra Nevada Mountains: Ice House Road, 7.6 miles north of its junction with CA-50, c. 10.5 miles NE (74a^z) of Pollock Pines (Riverton 7.5'Q)
1641
Comment
UCR173805
Chamaesaracha nana
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10658
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 6.1 miles north of Hwy US-50
1653
Comment
UCR215925
Chamaesaracha nana
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15072
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
RSA615427
Chamaesyce micromera
George K. Helmkamp
1997-9-30
2490
Inyo
East side of White Mountains.
1707
Comment
RSA614498
Chamaesyce polycarpa var. polycarpa
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2664
Riverside
Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd.
101
Comment
UCR232605
Chenopodium
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18424
El Dorado
Northern Sierra Nevada Mountains, Pony Express Trail, 0.9 mile east of Sly Park Road in Pollock Pines
1220
Comment
HSC80087
Chenopodium album
G. K. Helmkamp
1985-7-2
603
San Bernardino
The Nature Preserve of the Big Morongo Preserve, S of Morongo Valley, at the entrance to the Preserve.
762
Comment
UCR147225
Chenopodium album
George K. Helmkamp, E. A. Helmkamp
2004-8-14
8783
San Luis Obispo
Central Coast, junction of Thompson Rd. and Mehlschau Rd., NE of Nipomo
107
Comment
IRVC29194
Chenopodium album
G. K. Helmkamp, E. A. Helmkamp
2004-8-14
8783
San Luis Obispo
junction of Thompson Rd. and Mehlschau Rd., NE of Nipomo Central Coast
107
Comment
SD232662
Chenopodium berlandieri
George Helmkamp
1996-9-26
1227
Mono
City of Mammoth Lakes. Solitary plant in disturbed roadside soil at the south end of the city.
2469
Comment
UCR189211
Chenopodium berlandieri
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12931
El Dorado
Northern Sierra Nevada Mountains, along Hwy US-50, 0.4 mile southwest of Phillips
1829
Comment
UCR171243
Chenopodium botrys
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9702
El Dorado
Northern Sierra Nevada Foothills, Pollock Pines area just south of US Highway 50 along County Road #5
1159
Comment
UCR209757
Chenopodium botrys
George K. Helmkamp, E. A. Helmkamp
2009-8-14
15472
El Dorado
Sierra Nevada Mountains Foothills, junction of Sand Ridge Road and Cutaway Lane, 2.0 miles west of Bucks Bar Road
642
Comment
UCR118352
Chenopodium missouriense
George K. Helmkamp, E. A. Helmkamp
2000-9-1
5960
San Luis Obispo
Los Osos, Martingale at Buckskin
30
Comment
UCR103611
Chenopodium murale
George K. Helmkamp, E. Helmkamp
1998-2-10
2688
Imperial
Sonoran (Colorado) Desert, SE Salton Sea, vicinity of Wister, drainage ditch at the jct of Pound & Davis Streets.
-66
Comment
UCR115811
Chenopodium murale
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5690
San Luis Obispo
Central Coast, between Los Osos and sand dunes west of the end of Howard St.
15
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
SEINET3815544
Chlorogalum pomeridianum var. pomeridianum
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17946
El Dorado
Northern Sierra Nevada Mountains: Omo Ranch Road, 7.4 miles SE of Omo Ranch, 1.9 mi NW airline of Hwy 88 junction
1372
Comment
UCR259873
Chondrilla juncea
George K. Helmkamp, Elizabeth Helmkamp
2013-10-18
22447
Amador
Sierra Nevada Mountains Foothills, along Shenandoah Road, 0.2 mile east of CA-49 in Plymouth
364
Comment
UCR103557
Chorizanthe brevicornu var. brevicornu
George K. Helmkamp, E. A. Helmkamp
1998-1-17
2551
Riverside
Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal
.3
Comment
UCR131904
Chrysanthemum coronarium
George K. Helmkamp
2003-10-8
8195
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
UCR14386
Chrysanthemum parthenium
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Angelus Oaks, Robin Oak Dr.
1734
Comment
UCR200872
Chrysolepis sempervirens
George K. Helmkamp, E. A. Helmkamp
2008-9-15
14112
Placer
Northern Sierra Nevada Mountains, Forestry route 43, 0.3 mile southeast of the east end of Foresthill Road at the junction to Soda Springs, junction is 27 miles northeast of Forest Hill City
2061
Comment
UCR67461
Chrysothamnus nauseosus
George K. Helmkamp
1990-9-23
D- 10
Lassen
20 mi north of Litchfield along US Hwy 395
1437
Comment
SEINET3282746
Chrysothamnus viscidiflorus subsp. viscidiflorus
George K. Helmkamp, E. A. Helmkamp
2008-9-22
14160
Alpine
Northern Sierra Nevada Mountains; along CA-89. 0.1 mile north of Markleeville.
1686
Comment
UCD103854
Chylismia claviformis
G. K. Helmkamp; E. A. Helmkamp
1998-2-18
2710
Riverside
Colorado Desert. Midland Road, 3.8 miles SE of Midland, Little Maria Mountains.
Comment
SD234291
Cirsium occidentale var. californicum
G. K. Helmkamp, E. A. Helmkamp
2007-5-30
12200
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
UCR233198
Cirsium occidentale var. candidissimum
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17761
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 (95 deg. ) of Peardale
686
Comment
UCR248671
Cirsium scariosum
George K. Helmkamp, Belinda Pesheck
2013-7-14
21039
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
UCR59976
Cirsium vulgare
George K. Helmkamp
1988-9-8
s.n.
Mono
Sierra Nevada Mtns., SW side of Mono Lake, between the lake and US Hwy 395
1951
Comment
SEINET7249122
Cirsium vulgare
George K. Helmkamp, Amy Barnes
2013-1
Calaveras
Comment
RSA0045135
Cistanthe monosperma
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19346
El Dorado
Ice House Road, 0.4 mile north of Ice House village, 10.9 miles north of the junction with US-50.
1707
Comment
RSA747128
Clarkia affinis
George K. Helmkamp, E. A. Helmkamp
2007-5-1
11918
El Dorado
along Hwy CA-49, 6.1 miles northwest of Placerville
454
Comment
UCR107328
Clarkia affinis
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3659
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
UCD104333
Clarkia biloba subsp. biloba
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-4
10621
El Dorado
Northern Sierra Nevada foothills. Rock Creek Road at Dark Canyon, 1.4 miles east of the junction with Hwy. CA-193.
381
Comment
UCR242573
Clarkia biloba subsp. biloba
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17598
Amador
Northern Sierra Nevada Mountains Foothills, along CA-26, 0.1 mile west of the Calaveras Co. line at the bridge over the North Fork Mokelumne River, 1.6 mi. SE (115 deg. ) of Pioneer
652
Comment
UCR256507
Clarkia biloba subsp. biloba
George K. Helmkamp, Amy Barnes
2014-5-8
22855
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 0.2 mile east of old CA-49 in town of Sutter Creek
375
Comment
UCR88713
Clarkia biloba subsp. biloba
George K. Helmkamp, E. A. Helmkamp
1995-6-21
95-5- 05
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
RSA785404
Clarkia biloba subsp. brandegeeae
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16334
Amador
Sierra Nevada Mtns Foothills: Sutter Creek Road, 7.2 mi NE of its junction with old CA-49 in Sutter Creek village.
473
Comment
SD239822
Clarkia biloba subsp. brandegeeae
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17757
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.
686
Comment
UCR218238
Clarkia biloba subsp. brandegeeae
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-2
16441
Placer
Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax
418
Comment
RSA758526
Clarkia concinna subsp. concinna
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14728
Yolo
west side of Cache Creek along CA-16, 5.5 miles southeast of the Colusa County line
177
Comment
UCR127085
Clarkia epilobioides
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3855
Monterey
Reservoir area., San Antonio Rd 0.7 mi north of G-14 (Interlake Rd between San Antonio and Nacimiento reservoirs)
335
Comment
RSA0047746
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, Elizabeth A. Helmkamp
2013-5-24
20689
Calaveras
Whiskey Slide Road, just east of West Murray Creek Road, c. 4.7 miles SE of Jesus Maria Road
677
Comment
UCR108903
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, E. A. Helmkamp
1998-6-30
4205
San Luis Obispo
South Coast Range, Alamo Creek Rd, 0.9 mile north of Calif. Hwy 166, near Twitchell Reservoir
320
Comment
UCR159850
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9643
San Luis Obispo
South Central Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 6.7 miles east of Santa Margarita
485
Comment
UCR233671
Clarkia rhomboidea
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17955
Amador
Northern Sierra Nevada Mountains, Ellis Road, 2.1 miles south of its junction with CA-88
1794
Comment
RSA0093829
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
UCR130241
Clarkia unguiculata
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6524
Kern
Tehachapi Mtns., Western Foothills, Calif. Hwy 223 (Bear Mtn. Blvd.), 7.2 mi east of Arvin
366
Comment
UCR160968
Clarkia unguiculata
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9658
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
UCR206290
Clarkia unguiculata
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14738
Colusa
Central Inner Coast Ranges, along CA-16 near Bear Creek, 1.6 miles south of the junction with CA-20
320
Comment
UCR222364
Clarkia virgata
George K. Helmkamp, Mary Alice Barnes, Mary Jane Ganive
2010-6-13
16277
El Dorado
Sierra Nevada Mountains Foothills, along Forebay Road, 2.1 miles northwest of the Forebay Bridge over South Fork American River
828
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
SD239826
Clarkia williamsonii
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17697
Amador
Northern Sierra Nevada Mountains Foothills: along CA-88, 1.4 miles southwest of Ridge Road, 1.3 miles NW (334a^z) of Clinton (Pine Grove 7.5'Q)
622
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
UCR170973
Claytonia parviflora subsp. parviflora
George K. Helmkamp, E. A. Helmkamp
2006-3-19
10093
Amador
Northern Sierra Nevada Foothills, Along Calif. Highway 49 south of Plymouth
323
Comment
UCR218145
Claytonia parviflora subsp. parviflora
George K. Helmkamp, Amy Barnes
2010-5-7
15994
Calaveras
Sierra Nevada Mountains Foothills, Mountain Ranch Road, 3.2 miles east of San Andreas
436
Comment
UCD100729
Claytonia perfoliata
G. 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
UCR232206
Claytonia perfoliata subsp. mexicana
George K. Helmkamp, E. A. Helmkamp
2011-3-12
17081
Amador
Northeastern San Joaquin Valley, along CA-88, 0.8 mile northeast of the San Joaquin County line, c. 3 miles north of Camanche Reservoir
81
Comment
UCR233112B
Claytonia perfoliata subsp. mexicana
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15779
Sacramento
Sacramento Valley/lower Sierra Nevada Foothills, along CA-16 (Jackson Rd.), 0.2 mile west of the Amador County line
82
Comment
UCD95588
Clematis ligusticifolia
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12591
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
CLARK-A1045-19
Cleomella obtusifolia
George K. Helmkamp
1977-4-23
San Bernardino
Trona 2 miles south of Trona; roadside along Trona Road; ; Westend 7.5'Q (Searles Lake 15'Q)
487
Comment
UCR13836
Cleomella obtusifolia
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
Comment
CAS-BOT-BC423204
Cleomella parviflora
George Helmkamp; E. A. Helmkamp
1993-7-28
166
Mono
Sierra Nevada Mountains: Benton's Crossing of Owens River.
2134
Comment
CAS-BOT-BC228614
Collinsia bartsiifolia var. bartsiifolia
George K. Helmkamp; E. A. Helmkamp
2011-6-7
17492
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
SBBG129038
Collinsia bartsiifolia var. bartsiifolia
G. K. Helmkamp, E. A. Helmkamp
2012-5-31
19090
Calaveras
CA-26 E of Mokelumne Hill, at the crossing of the S Fork Mokelumne River
614
Comment
UCR122501
Collinsia bartsiifolia var. davidsonii
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6611
San Luis Obispo
South Coast Range, La Panza Range, Calf Canyon, CA Hwy 58, 4.5 mi east of Santa Margarita
335
Comment
SD167042
Collinsia heterophylla
G. 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
SD239908
Collinsia heterophylla
G. K. Helmkamp, Amy Barnes
2010-5-7
15985
Calaveras
Sierra Nevada Mountains Foothills: Michel Road, 0.1 mile east of its junction with Mountain Ranch Road. 5.2 miles east (92.5a^z) of San Andreas (Calaveritas 7.5'Q)
512
Comment
UCR222552
Collinsia heterophylla
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15897
Placer
Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill
308
Comment
CLARK-A1045-540
Collinsia parviflora
George K. Helmkamp
1979-6-5
#2
San Bernardino
San Bernardino Mountains at junction of Forest Service road 3N08 with 3N66Y; dry slope under pines; ; Big Bear City 7.5'Q
2285
Comment
SD197917
Collinsia sparsiflora
G. K. Helmkamp, E. A. Helmkamp
2007-4-23
11783
Amador
Along Bell Road beside Plymouth Creek just east of Ca-49 in the vicinity of Enterprise.
302
Comment
SBBG129007
Collinsia sparsiflora var. sparsiflora
G. K. Helmkamp, E. A. Helmkamp
2012-4-21
18821
Nevada
McCourtney Rd, 0.4 mi E of its jct with Perimeter Rd, 14.5 mi NW (338 deg) of Auburn
407
Comment
RSA715281
Collinsia tinctoria
George K. Helmkamp, E. 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.
424
Comment
UCR176494
Collinsia torreyi
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11124
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
UCR170364
Collomia grandiflora
George K. Helmkamp, Elizabeth Helmkamp
2005-8-9
9769
El Dorado
Northern Sierra Nevada Foothills., WSW of Lake Tahoe; Union Reservoir along Ice House Road; boat ramp and loading area
1476
Comment
UCR229484
Collomia grandiflora
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17882
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
RSA791379
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2012-5-18
19020
El Dorado
Northern Sierra Nevada Mountains Foothills: Capps Crossing Road (Bonnetti Rd.), 0.1 mi northwest of the bridge over Diamond Creek, East of Jenkinson Lake and south of US Hwy 50.
1186
Comment
UCR197332
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13425
Calaveras
Sierra Nevada Mountains Foothills, Skull Flat road, 0.4 mile north of it junction with Winton Road, northeast of West Point
823
Comment
UCR234010
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17656
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
UCR240893
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19141
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 6.2 miles south of its junction with CA-88, 5.9 mi. SW (245 deg. ) of Bear River Reservoir dam
1438
Comment
UCR197279
Comandra umbellata subsp. californica
George K. Helmkamp, E. A. Helmkamp
2008-5-29
13520
Calaveras
Sierra Nevada Mountains, Arnold Way Road parallel to CA-4 (Ebbetts Pass Hwy), 0.8 mile northeast of Arnold
1265
Comment
UCR162997
Conium maculatum
George K. Helmkamp, E. A. Helmkamp
2005-4-6
9307
Santa Barbara
Outer South Coast Ranges, Old Highway US 101, road to Nojoqui Falls, 0.2 mi south of junction with US Highway 101
204
Comment
UCR188483
Convolvulus arvensis
George K. Helmkamp, E. A. Helmkamp
2007-9-30
13052
Sutter
Sacramento Valley, Sacramento Ave. on the east side of CA-99, junction 1.4 miles north of the Feather River
21
Comment
UCR140402
Conyza bonariensis
George K. Helmkamp
2004-3-13
8356
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
RSA795965
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18328
El Dorado
Loon Lake Road at the junction to the campground at the south end of the lake
1973
Comment
UCR177126
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2005-9-23
9896
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
UCR253626
Conyza canadensis
George K. Helmkamp, Elizabeth Helmkamp
2012-11-12
20130
El Dorado
Eastern Sacramento Valley, El Dorado Hills; Windfield Parkway 0.2 mile south of White Rock Road
175
Comment
SD129529
Cordylanthus rigidus subsp. setiger
G. K. Helmkamp
1989-10-7
Riverside
Edge of moist farmland at the N edge of the fish hatchery in Whitewater Canyon, N of I-10
700
Comment
SD237614
Cordylanthus tenuis subsp. tenuis
G. K. Helmkamp, E. A. Helmkamp
2007-6-27
12629
Placer
Sierra Nevada Mountains Foothills: Southeast end of Cisco Grove; along local road just before it passes under Interstate-80 (Cisco Grove 7.5'Q)
1744
Comment
SEINET2441557
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15424
Placer
Sierra Nevada Mountains: Forest Hill Road, 20.5 miles northeast of the city of Foresthill (Duncan Peak 7.5' Q.).
1662
Comment
UCR190307
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, E. A. Helmkamp
2007-8-21
12806
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
UCR209569
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, E. A. Helmkamp
2009-8-8
15409
El Dorado
Sierra Nevada Mountains Foothills, along Forebay Road, 5.0 miles northwest of its junction with Poly Express Road in Pollock Pines
954
Comment
SD237413
Cornus nuttallii
G. K. Helmkamp, E. A. Helmkamp
2008-5-15
13446
El Dorado
Sierra Nevada Mountains: White Meadow Road, 0.1 mile west of its junction with Ice House Road, c. 1.3 miles up Ice House Road from US-50.
1054
Comment
UCR145542
Cotoneaster lacteus
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5739
Mendocino
North Coast, Glass Beach, Fort Bragg
9
Comment
UCR160295
Cotula australis
George K. Helmkamp
2004-5-2
8565
Santa Barbara
Southern Central Coast, Santa Ynez Mountains, Canada del Refugio Rd., 5. mi N of US-101
488
Comment
UCR121577
Cotula coronopifolia
George K. Helmkamp, E. A. Helmkamp
1999-6-28
5011
San Mateo
Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek
61
Comment
UCR250278
Crassula connata
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14480
Amador
Sierra Nevada Mtns. Foothills, south of Ione, CA-88 between Buena Vista Rd. and South Church St.
125
Comment
UC1787278
Crepis capillaris
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
6992
Humboldt
North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd).
137
Comment
UCR121767
Crepis capillaris
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6998
Humboldt
North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay
6
Comment
SD178167
Crocanthemum scoparium
G. K. Helmkamp
2004-3-4
8323
San Luis Obispo
Central Coast: Nipomo Mesa, along Pomeroy Rd, 0.2 mi north of Willow Rd, northwest of Nipomo. Occasional, in open grassy areas.
91
Comment
RSA564303
Crocidium multicaule
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
16.1 miles northwest of Canby. Along California Highway 139.
1280
Comment
UCR179557
Croton setiger
George K. Helmkamp, E. A. Helmkamp
2006-9-29
11448
El Dorado
Northern Sierra Nevada Mountains Foothills, Salmon Falls Rd just west of Calif. Hwy 49 and 4 miles south of Cool
351
Comment
UCR194984
Croton setiger
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13089
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
UCR232678
Croton setiger
George K. Helmkamp, E. A. Helmkamp
2011-10-15
18429
San Joaquin
San Joaquin Valley, along CA-26, 0.6 mile northeast of Escalon-Bellota Rd.
40
Comment
UCR229399
Cryptantha affinis
George K. Helmkamp, E. A. Helmkamp
2011-8-13
18095
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
UCR229553
Cryptantha affinis
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18062
Calaveras
Northern Sierra Nevada Mountains, Black Springs Road [Forest Route 7N23], 1.7 miles north of its junction with CA Hwy 4
2058
Comment
SD227777
Cryptantha angustifolia
G. K. Helmkamp, E. A. Helmkamp
1998-2-26
2787
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
UCR103578
Cryptantha angustifolia
George K. Helmkamp
1998-1-17
2546
Riverside
Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal
.3
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
CLARK-A1045-262
Cryptantha barbigera
George K. Helmkamp
1978-5-1
San Bernardino
Rodman Mountains Rodman Mts. 15'Q
Comment
CLARK-A1045-656
Cryptantha circumscissa
George K. Helmkamp
1977-5-29
San Bernardino
Cima Kelso 15'Q
Comment
UCR163899
Cryptantha decipiens
George K. Helmkamp, E. A. Helmkamp
2005-3-30
9255
San Luis Obispo
Outer South Coast Ranges, La Panza Range; Pozo Road, 6.5 mi NE of Hi Mountain Road, [c. 1 mi (airline) SW of Pozo Summit]
665
Comment
UCR99925
Cryptantha echinella
George K. Helmkamp
1997-9-29
2440 A
Inyo
Sierra Nevada Mountains, Onion Valley Road, 7.9 mi west of Hwy US-395 from Independence
2159
Comment
CAS-BOT-BC249066
Cryptantha flaccida
George K. Helmkamp; E. A. Helmkamp
2012-4-14
18766
Butte
Northwestern Sacramento Valley: entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River
46
Comment
SEINET235061
Cryptantha flaccida
G. K. Helmkamp, E. A. Helmkamp
1998-5-13
3549
Kern
Greenhorn Mtns Southern Sierra Nevada: 6.5 mi. SW of Woody along Bakerfield/Glennville Rd (NE of Bakersfield). Near Hor
396
Comment
CLARK-A1045-788
Cryptantha maritima
George K. Helmkamp
1977-5-14
San Bernardino
New York Mountains south end of New York Mountains; Mid Hills 15'Q
Comment
UCR102935
Cryptantha maritima
George K. Helmkamp
1998-4-4
3128
Riverside
Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd)
457
Comment
UCR103622
Cryptantha maritima
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2912
Imperial
Sonoran (Colorado) Desert, along Hwy S-24 between the All-American Canal & the Colorado River, 2.0 mi. north of Laguna Dam.
76
Comment
UCR145544
Cryptantha muricata
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5496
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
UCR15587
Cryptantha oxygona
George K. Helmkamp
1978-5-28
s.n.
Inyo
Owens Valley, Beside the Owens River at Pleasant Valley
1311
Comment
SD224879
Cryptantha pterocarya var. pterocarya
G. K. Helmkamp, E. A. Helmkamp
1998-3-16
2838
San Bernardino
50 ft. N of the boundary of Joshua Tree National Park at the S end of Sunkist Rd (E of town of Joshua Tree).
883
Comment
CLARK-A1045-566
Cryptantha simulans
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains drying edge of pool; yellow pine forest; Keller Peak 7.5'Q
Comment
UCR157799
Cryptantha simulans
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4156
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
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
CLARK-A1045-222
Cryptantha utahensis
George K. Helmkamp
1979-4-18
Riverside
Little San Bernardino Mountains 3.5 miles north of Dillon Road; sandy wash; Lost Horse Mtn. 15'Q
Comment
UCR96680
Cuscuta californica var. californica
George K. Helmkamp, E. A. Helmkamp
1996-12-10
1272
San Bernardino
Mojave Desert, along Kelbaker Road 6 mi north of National Trails Hwy.
619
Comment
UCD127371
Cymopterus terebinthinus var. californicus
G. K. Helmkamp; E. A. Helmkamp
2006-8-30
11298
Alpine
Northern Sierra Nevada Mountains; Woods Lake, south of CA-88 and generally SE of Caples Lake. Besides Woods Creek.
2521
Comment
UCR178749
Cymopterus terebinthinus var. californicus
George K. Helmkamp, E. A. Helmkamp
2006-8-30
11298
Alpine
Northern Sierra Nevada Mountains, Woods Lake, south of Calif. Hwy 88 and generally SE of Caples Lake
2521
Comment
UCR246831
Cymopterus terebinthinus var. californicus
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16665
Placer
Northern Sierra Nevada Mountains, Forest Hill Road, 1.6 miles west of the junction with Soda Springs Road at Robinson Flat
2040
Comment
UCR219119
Cynodon dactylon
George K. Helmkamp, E. A. Helmkamp
2009-8-30
15550
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
UCR88590
Cynosurus echinatus
George K. Helmkamp, E. A. Helmkamp
1995-6-22
95- 4 -12
Calaveras
Sierra Nevada Mtns, along Calif. Hwy 4, 2.5 mi NE of Arnold
1479
Comment
UCR219125
Cyperus difformis
George K. Helmkamp, E. A. Helmkamp
2009-8-30
15554
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
UCR134699
Cyperus eragrostis
George K. Helmkamp
2003-9-19
8154
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
UCR253809
Cyperus eragrostis
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20106
Placer
Sacramento Valley, north of William Lane on an unnamed levee road to Markham Ravine
35
Comment
UCR262440
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2011-12-9
18502
Placer
Sacramento Valley, Sunset Blvd. West, 5.8 miles west of its junction with Fiddyment Road
29
Comment
UCD141065
Cyperus esculentus
G. K. Helmkamp; E. A. Helmkamp
2000-9-1
5959
San Luis Obispo
San Luis Obispo County: Los Osos: Martingale at Buckskin.
30
Comment
UCR134427
Cyperus involucratus
George K. Helmkamp
2003-9-19
8149
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
RSA0050409
Cyperus niger
George K. Helmkamp, Elizabeth A. Helmkamp
2013-9-13
22286
Amador
Volcano Road, 11.4 miles northeast of CA-49 in Sutter Creek, c. 0.4 mi SW of Volcano
608
Comment
CLARK-A1045-1105
Cystopteris fragilis
George K. Helmkamp
1977-7-3
Mono
Sierra Nevada Tioga Pass 7.5'Q
Comment
SEINET3257999
Cystopteris fragilis
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13388
Amador
Sierra Nevada Mountains Foothills; along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir.
774
Comment
UCR196941
Cystopteris fragilis
George K. Helmkamp, E. A. Helmkamp
2008-6-3
13551
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
UCD105681
Cytisus scoparius
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12576
El Dorado
Northern Sierra Nevada Mountains. Along Hwy CA-193, 1 mile south of Georgetown.
771
Comment
UCR253222
Cytisus scoparius
George K. Helmkamp
2014-4-28
22832
El Dorado
Sierra Nevada Mountains Foothills, Pleasant Valley Road at Gold Oak Union School, 0.3 mile west of Moon Lake Dr.
787
Comment
SEINET7249220
Dactylis glomerata
George K. Helmkamp, E. A. Helmkamp
2012-1
19328
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
UCR245600
Dactylis glomerata
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19106
Calaveras
Northern Sierra Nevada Mountains, Winton Road, 4.1 miles east of its junction with CA-26, NE of West Point
1072
Comment
UCR103631
Dalea mollissima
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2917
Imperial
Sonoran (Colorado) Desert, along Hwy S-24 between the All-American Canal & the Colorado River, 2.0 mi. north of Laguna Dam.
76
Comment
SD236271
Datisca glomerata
G. K. Helmkamp, Elizabeth Helmkamp
2005-9-1
9823
El Dorado
Northern Sierra Nevada Foothills: E of Sacramento; Sand Canyon Road, 0.3 mi E of CA Highway 49 and Logtown Ridge (Fiddletown 7.5'Q)
280
Comment
UCR170483
Datisca glomerata
George K. Helmkamp, Elizabeth Helmkamp
2005-9-1
9823
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento; Sand Canyon Road, 0.3 mi east of Calif. Highway 49 and Logtown Ridge
280
Comment
UCR147238
Datura stramonium
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8834
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCR170580
Daucus carota
George K. Helmkamp, E. A. Helmkamp
2005-9-1
9832
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento; Sand Canyon Road, 0.3 mi east of Calif. Highway 49 and Logtown Ridge
280
Comment
UCR171323
Daucus carota
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9676
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
UCR190199
Daucus carota
George K. Helmkamp, E. A. Helmkamp
2007-7-23
12561
El Dorado
Northern Sierra Nevada Mountains Foothills, Rock Creek road, 7.1 miles east of its junction with CA-193
567
Comment
UCR209568
Daucus carota
George K. Helmkamp, E. A. Helmkamp
2009-8-8
15406
El Dorado
Sierra Nevada Mountains Foothills, along CA-49, 0.2 mile north of its turn from Pleasant Valley Road in Diamond Springs
561
Comment
UCR176248
Delphinium depauperatum
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10853
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
SBBG128823
Delphinium glaucum
G. K. Helmkamp, E. A. Helmkamp
2010-8-20
16814
El Dorado
Foster Meadow Rd 0.6 mi W of Mormon Emigrant Trail in the Leek Spring area
2232
Comment
UCR256516
Delphinium hansenii
George K. Helmkamp, Amy Barnes
2014-5-8
22867
El Dorado
Sierra Nevada Mountains Foothills, along CA-49 near Ramales Lane, c. 0.7 mile north of Union Mine Road junction
282
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
UCR237097
Delphinium nuttallianum
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19406
Amador
Northern Sierra Nevada Mountains, between CA-88 and the El Dorado County line, 0.9 mile north of Silver Lake along CA-88
2267
Comment
UCR241330
Delphinium nuttallianum
George K. Helmkamp, E. A. Helmkamp
2012-6-19
19237
Placer
Northern Sierra Nevada Mountains, Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road
2055
Comment
UCR242610
Delphinium nuttallianum
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17566
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 0.8 mile northeast of CA-26 at West Point
977
Comment
UCR122475
Dendromecon rigida
George K. Helmkamp, E. A. Helmkamp
1998-5-20
3893
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
UCR160929
Dendromecon rigida
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9514
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
CLARK-A1045-1108
Deschampsia cespitosa
George K. Helmkamp
1977-9-1
VI
Alpine
Sierra Nevada 2 miles east of Luther Pass, corner of US Highway 88 and US Highway 89; roadside; 7300ft; Freel Peak 7.5'Q
Comment Read comments Jan 10 2015
CAS-BOT-BC227258
Deschampsia danthonioides
G. K. Helmkamp; E. A. Helmkamp
2011-7-19
17822 A
Tuolumne
Northern Sierra Nevada Mountains Foothills: Forestry Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
UCR216922
Deschampsia danthonioides
George K. Helmkamp, E. A. Helmkamp
2010-5-4
15955
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
SEINET4142455
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2011-5-24
17374
El Dorado
Northern Sierra Nevada Mountain Foothills: Mesquite Road, 11.2 mi. S of junction with Wentworth Springs Road, 7.3 mi. NE of Placerville
1073
Comment
SEINET4691438
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2011-1
17374
El Dorado
Northern Sierra Nevada Mountains Foothills: Mesquite Road, 11.2 miles south of its junction with Wentworth Springs Road, 7.3 mi NE (42 degrees) of Placerville.
1073
Comment
UCD63239
Deschampsia elongata
G. K. Helmkamp; E. A. Helmkamp
2007-8-4
12680
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
UCR134487
Descurainia californica
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4271
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR91711
Descurainia incisa subsp. incisa
George K. Helmkamp
1996-6-11
1131
San Bernardino
San Bernardino Mtns., 1.2 miles SW of Tulip Lane, city of Big Bear Lake
2143
Comment
UCR102968
Descurainia pinnata
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2826
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
UCR122170
Descurainia pinnata
George K. Helmkamp, E. A. Helmkamp
2000-4-22
5479
San Luis Obispo
Central Coast, Los Osos, between the west end of Howard Ave. and Morro Bay sand dunes
15
Comment
UCR37633
Descurainia sophia
George K. Helmkamp
1984-4-20
840420- 21
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
RSA0062472
Dicentra formosa
George K. Helmkamp, Elizabeth A. Helmkamp
2013-7-6
20966
Amador
Bear River Road at the south end of the dam for Lower Bear River Reservoir.
1784
Comment
RSA755333
Dicentra formosa
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14568
Placer
town of Foresthill, along Forest Hill Road
988
Comment
SEINET4691850
Dicentra formosa
George K. Helmkamp, E. A. Helmkamp
2011-1
17508
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
UCR191122
Dicentra formosa
George K. Helmkamp, E. A. Helmkamp
2007-8-29
12829
Yuba
Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek
1021
Comment
UCR196830
Dicentra formosa
George K. Helmkamp
2008-6-17
13686
Amador
Northern Sierra Nevada Mountains, Bear River Reservoir Road along the south side of Bear River Reservoir
1797
Comment
CAS-BOT-BC500068
Dichelostemma capitatum
G. K. Helmkamp; E. A. Helmkamp
2008-5-22
13210
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
UCD139194
Dichelostemma capitatum subsp. capitatum
G. K. Helmkamp; E. A. Helmkamp
2007-3-17
11652
Calaveras
Eastern Sacramento Valley; about 1 mile north of Burson on the road to south Comanche Reservoir.
152
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
UCR173178
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, Elizabeth Helmkamp
2006-4-6
10124
El Dorado
Northern Sierra Nevada Foothills, Greenstone Road, c. 0.3 mi N of Pleasant Valley Road (ENE of Shingle Springs and south of US Hwy 50)
457
Comment
UCR257899
Dieteria canescens
George K. Helmkamp, Amy Barnes
2014-8-27
23064
Mono
Northern Sierra Nevada Mountains, Monitor Pass along CA-89, 4.7 miles west of the junction with CA-395
2040
Comment
SD243208
Digitalis purpurea
George K. Helmkamp, E. A. Helmkamp
2011-9-30
18352
Nevada
Foothills, northern Sierra Nevada Mountains: Mule Spring Rd. off Lowell Hill Road, 6.2 miles northeast of Lowell Hill junction with Dutch Flat X Road at lower end of Bear River Reservoir.
1189
Comment
UCR106434
Digitalis purpurea
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2188
Mendocino
North Coast, Big River, 0.2 mi east of US-1, south of Mendocino
6
Comment
UCR132045
Digitaria sanguinalis
George K. Helmkamp
2003-7-31
8052 B
San Luis Obispo
Central Coast, west edge of Nipomo Hill at junction of Cienaga Rd. and Valley View Road
15
Comment
UCR253197
Digitaria sanguinalis
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22138
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 4.8 miles northeast of the town of Sutter Creek
405
Comment
SD237622
Diplacus torreyi
G. K. Helmkamp, E. A. Helmkamp
2009-8-12
15425
Placer
Sierra Nevada Mountains: Forest Hill Road, 20.5 miles ortheast of the city of Foresthill (Duncan Peak 7.5'Q)
1662
Comment
UCR59777
Ditaxis lanceolata
George K. Helmkamp
1989-9-17
s.n.
Imperial
Sonoran (Colorado) Desert, Beside Indian Pass Rd, 7.2 mi NE of Ogilby Rd (S34).
220
Comment
CLARK-A1045-1213
Ditaxis neomexicana
George K. Helmkamp
1977-1-22
Imperial
Yuha Desert where Pinto Wash crosses State Highway 98; ; Yuha Basin 7.5'Q
Comment
SD167138
Ditaxis neomexicana
G. K. Helmkamp
1998-4-4
- 3180
Riverside
2.3 miles north of Highway I-10 on Eagle Mountain Road.
274
Comment
SD243079
Dittrichia graveolens
George K. Helmkamp, E. A. Helmkamp
2011-10-15
18449
Stanislaus
Eastern San Joaquin Valley: along J-4 (Milton Road), 1.7 miles south of its junction with CA-4, 12 miles NE (44a^z) of Escalon (Farmington 7.5'Q)
64
Comment
UCR235298
Dittrichia graveolens
George K. Helmkamp, E. A. Helmkamp
2011-11-21
18473
San Joaquin
Northeastern San Joaquin Valley, Collier Road, 0.4 mile west of its junction with CA-88, 1.7 mi. NE (18 deg. ) of Clements
37
Comment
UCR162160
Dodecatheon clevelandii subsp. insulare
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8925
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
UCR185217
Dodecatheon hendersonii
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11786
Amador
Foothills, Northern Sierra Nevada Mountains, along Bell Road beside Plymouth Creek just east of Calif. Hwy 49 in the vicinity of Enterprise
302
Comment
UCSB71615
Draba verna
Helmkamp, G.; Helmkamp, E.
2007-3-22
El Dorado
Foothills, Northern Sierra Nevada Mountains; Mt. Aukum Road at the crossing of the middle fork of Cosumnes river, west of jct. of Bucks Bar Road (Camino 7.5' Q.:+/- 1000m)
622
Comment
UCR209741
Draperia systyla
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15426
Placer
Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill
1662
Comment
UCD113061
Drymocallis glandulosa
G. K. Helmkamp; E. A. Helmkamp
2007-4-29
11876
El Dorado
Northern Sierra Nevada Mountains: Lake Oaks mobile home park, Diamond Springs.
524
Comment
UC2046875
Drymocallis lactea
George K. Helmkamp with E. A. Helmkamp
2012-6-19
19238
Placer
Northern Sierra Nevada Mountains: Foresthill Road, 9.2 miles east of its junction with Devil's Thumb Road. Duncan Peak 7.5' Quad.
Comment
UCD113034
Drymocallis lactea var. austiniae
G. K. Helmkamp; E. A. Helmkamp
2007-6-6
12267
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail, 6.3 miles east of its junction with Sly Park Road.
1607
Comment
UC2015565
Drymocallis lactea var. lactea
G. Helmkamp
1995-9-23
3 -26
Alpine
West side of Sonora Pass just beyond the Mono County line.
Comment
UCD113012
Drymocallis lactea var. lactea
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10972
El Dorado
Northern Sierra Nevada Mtns: Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50.
2104
Comment
IRVC29203
Dryopteris arguta
G. K. Helmkamp, E. A. Helmkamp
2004-9-29
8808
Santa Barbara
Stagecoach Road at junction with Hwy CA-154, SE of Lake Cachuma Santa Ynez Mountains
561
Comment
UCR194873
Dryopteris arguta
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12121
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.2 miles north of North San Juan
610
Comment
UCR200907
Dryopteris filix-mas
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14062
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 Read comments Mar 13 2018
UCR158374
Dudleya caespitosa
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8719
Santa Barbara
Central Coast, between Ocean Park [Rd.] and Pacific Ocean at Surf; NW of Lompoc
15
Comment
CAS-BOT-BC227263
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
UCR173261
Dudleya cymosa subsp. cymosa
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10424
Placer
Northern Sierra Nevada foothills, 2.1 mi south of Auburn along Calif. Hwy 49
293
Comment
CLARK-A1045-727
Dyssodia cooperi
George K. Helmkamp
1978-5-1
San Bernardino
Mojave Desert at camp road; Ord Mts 15'Q
Comment
CLARK-A1045-686
Dyssodia pentachaeta
George K. Helmkamp
1978-5-6
San Bernardino
Mojave Desert Kingston Road; Clark Mt 15'Q
Comment
UCR210046
Echinochloa colona
George K. Helmkamp, E. A. Helmkamp
2009-8-14
15462
El Dorado
Foothills, northern Sierra Nevada Mountains, Bucks Bar Road, 3.9 miles south of Pleasant Valley Road
625
Comment
UCR253540
Echinochloa colona
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20086
San Joaquin
San Joaquin Valley, Littlejohns Creek, along unnamed dirt road 0.3 mi. south of CA-4 at a point 0.5 miles east of Farmington
32
Comment
SEINET1908436
Echinochloa crus-galli
G. K. Helmkamp, E. A. Helmkamp
2008-1
14269
Colusa
Sacramento Valley: along CA-20, 2 miles west of Meridian.
14
Comment
UCR218955
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2009-8-30
15564
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
SD243080
Eclipta prostrata
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18395
Glenn
Northern Sacramento Calley: Co. Road 61 (Riz Road), 2.6 miles east of CA-45 and at the junction with C. Road V, 8.26 miles SE (124a^z) of Willows (Princeton 7.5'Q)
25
Comment
UCR140103
Ehrharta calycina
George K. Helmkamp
2004-2-6
8252
San Luis Obispo
Central Coast, Riverside Road at the low end of Nipomo Mesa beside Division Road
46
Comment
UCR15634
Eleocharis acicularis var. acicularis
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
UCR257596
Elymus caput-medusae
George K. Helmkamp, Amy Barnes
2014-3-21
22645
Placer
Sacramento Valley, Sheridan, Riosa Road at the west side of its junction with old CA-65
33
Comment
UCR257602
Elymus caput-medusae
George K. Helmkamp, Amy Barnes
2014-3-21
22637
Placer
Sacramento Valley, Riosa Road at the east side of its junction with CA-65, just west of Sheridan
33
Comment
UCR82266
Elymus cinereus
George K. Helmkamp
1994-7-28
105- 5
Mono
Sierra Nevada Mtns., Long Valley, along US-395, 1.3 mi east of South Landing turnoff to Crowley Lake
2104
Comment
UCR121156
Elymus elongatus
George K. Helmkamp, E. A. Helmkamp
2001-6-3
6805
Solano
San Francisco Bay Region, Hammond Island SE of Fairfield. Grizzly Rd., 7.5 mi SE of entrance to wildlife preserve
6
Comment
SEINET9262054
Elymus elymoides
George K. Helmkamp, Elizabeth Helmkamp
2013-1
21036
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail at the junction with Pilliken Road (Leek Spring Hill 7.5 Q)
1823
Comment
UCR248708
Elymus elymoides subsp. californicus
George K. Helmkamp, Belinda Pesheck
2013-7-14
21048
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
UCR257836
Elymus elymoides subsp. californicus
George K. Helmkamp, Elizabeth Helmkamp
2012-8-24
19707
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
CAS-BOT-BC227255
Elymus glaucus
G. K. Helmkamp; E. A. Helmkamp
2011-7-19
17850
Calaveras
Northern Sierra Nevada Mountains Foothills: Forestry Route 5N75, 1.1 miles west of Boards Crossing bridge over North Fork Stanislaus River
1220
Comment
SEINET3815557
Elymus 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 E of Pope Road in San Andreas
387
Comment
UCR170275
Elymus glaucus
George K. Helmkamp, Elizabeth Helmkamp
2005-9-12
9868
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
UCR234644
Elymus glaucus
George K. Helmkamp, E. A. Helmkamp
2011-6-2
17443
Nevada
Northern Sierra Nevada Mountains Foothills, Lake Wildwood, along Pleasant Valley Road, 1.2 miles north of its junction with CA-20
433
Comment
SEINET7249317
Elymus glaucus
George K. Helmkamp, Elizabeth Helmkamp
2013-1
Calaveras
Comment
UCR240900
Elymus glaucus subsp. glaucus
George K. Helmkamp, E. A. Helmkamp
2012-6-19
19213
Placer
Northern Sierra Nevada Mountains Foothills, Foresthill Road, 2.6 miles east of its junction with Mosquito Ridge Road in Forest Hill
1052
Comment
UCR256970
Elymus glaucus subsp. glaucus
George K. Helmkamp
2014-5-17
22893
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
UCR257901
Elymus glaucus var. glaucus
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19437
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
UCR233124A
Elymus ponticus
George K. Helmkamp, E. A. Helmkamp
2011-9-23
18307
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 8.6 miles north of its junction with US-50
1613
Comment
UCR250594
Elymus ponticus
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12771
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 0.9 mile northeast of the junction with Bear River Reservoir Road
2076
Comment
UCR102988
Emmenanthe penduliflora
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2835
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
UCR122750
Emmenanthe penduliflora
George K. Helmkamp, E. A. Helmkamp
1998-4-24
3384
Riverside
Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill
1006
Comment
UCD131283
Encelia californica
G. Helmkamp
1997-6-21
2066
San Luis Obispo
San Luis Obispo County: Questa Ridge north of San Luis Obispo and 0.4 mile west of radio towers.
260
Comment Read comments May 31 2014
RSA0050411
Epilobium
George K. Helmkamp, Elizabeth A. Helmkamp
2013-8-14
22223
Alpine
Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89
1924
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
IRVC28934
Epilobium brachycarpum
G. K. Helmkamp
2003-10-24
8220
San Luis Obispo
El Campo Rd 0.1 mi E of Los Berros Rd, SE of Arroyo Grande Central Coast
46
Comment
SEINET11265850
Epilobium brachycarpum
George Helmkamp, E. A. Helmkamp
2010-10-20
17034
Sutter
Sacramento Valley: Pleasant Grove Road 0.1 mile north of the junction with Marcum Road, S of Nicolaus Ave., 2 miles SE (1051/4) of Trowbridge (Sheridan 7.5' Q.); 0
17
Comment
SEINET6175664
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2007-8-30
12850
El Dorado
Foothills, northern Sierra Nevada Mountains: Prospector Road, 0.1 mile north of Marshall Road near Indian Creek. (Coloma 7.5' Q.).; 0
268
Comment
UCD105317
Epilobium brachycarpum
G. K. Helmkamp; E. A. Helmkamp
2007-8-30
12850
El Dorado
Northern Sierra Nevada Mountains: Prospector Road, 0.1 mile north of Marshall Road near Indian Creek.
268
Comment
UCD105373
Epilobium brachycarpum
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13051
Sutter
Sacramento Valley. Sacramento Ave. on the east side of CA-99, junction 1.4 miles north of the Feather River.
21
Comment
UCR209033
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15500
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
UCR230732
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17034
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
UCR231878
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17032
Placer
Northern Sierra Nevada Mountains Foothills, Sugar Pine Road at the southwest corner of Sugar Pine Reservoir near the dam
1128
Comment
UCR233363
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18289
Calaveras
Northern Sierra Nevada Mountains Foothills, Bald Mountain Road, at the south side of the bridge over Hunter Creek, 8.8 miles northeast of the junction of Blue Mountain Road and Rail Road Flat Road
1034
Comment
UCR248398
Epilobium brachycarpum
George K. Helmkamp, Elizabeth Helmkamp
2013-7-25
22022
El Dorado
Northern Sierra Nevada Mountains, Wentworth Springs Road, 7.4 miles east of the junction with Volcanoville Road
1320
Comment
UCR253799
Epilobium brachycarpum
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20063
San Joaquin
San Joaquin Valley, along Hwy J-6 (Escalon-Bellota Road), 1.2 miles south of its junction with CA-26
46
Comment
UCR67373
Epilobium brachycarpum
George K. Helmkamp
1990-9-23
E- 17
Lassen
20 mi north of Litchfield along US Hwy 395
1437
Comment
UCR146843
Epilobium canum subsp. canum
George K. Helmkamp, E. A. Helmkamp
2004-9-29
8807
Santa Barbara
Santa Ynez Mountains, Stagecoach Road at junction with Calif. Hwy 154, SE of Lake Cachuma
561
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
UCD105950
Epilobium foliosum
G. K. Helmkamp; E. A. Helmkamp
2007-9-1
12863
El Dorado
Northern Sierra Nevada Mountains. Happy Valley Road, 3.2 miles E of its junction with CA-E-16 (just W of Sweeney's Crossing).
627
Comment
UCR176035
Epilobium glaberrimum subsp. fastigiatum
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10969
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
UCR258997
Epilobium hallianum
George K. Helmkamp, Amy Barnes
2014-9-16
23083 A
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
UCR176389
Epilobium pallidum
George 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
2030
Comment
UCR257163
Epilobium pallidum
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20623
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
CLARK-A1045-1056
Epilobium paniculatum
George K. Helmkamp
1977-9-1
IV
Mono
Antelope Valley along River, one mile north of Coleville; ; Coleville 7.5'Q
1676
Comment
UCR229450
Epilobium torreyi
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17949
El Dorado
Northern Sierra Nevada Mountains, Omo Ranch Road, 7.4 miles southeast of Omo Ranch, 1.9 mi. NW (304 deg. ) airline of Hwy 88 junction
1372
Comment
SD129117
Equisetum telmateia subsp. braunii
G. Helmkamp
1989-8-6
San Luis Obispo
just north of Cayucos, Toro Canyon Road, east of U. S. Hwy 101
120
Comment
UCR59222
Eragrostis barrelieri
George K. Helmkamp
1989-7-20
s.n.
San Bernardino
Mojave Desert, Yucca Valley
976
Comment
SD236145
Eragrostis curvula
G. K. Helmkamp
2004-6-12
8632
Santa Barbara
Southern outer coast ranges.: Along Hwy CA-135, 0.9 mi N of San Antonio Rd (S of Orcutt)
152
Comment
UCR25556
Eragrostis lehmanniana
George K. Helmkamp
1981-10-8
s.n.
San Bernardino
Eastern Mojave Desert, Along Hwy I-40, 0.5 mi west of the turn-off to Mitchell Caverns State Park
Comment
UCR101085
Eragrostis mexicana
George K. Helmkamp
1997-9-30
2502
Inyo
Sierra Nevada Mtns., Big Pine Creek
2287
Comment
SD253335
Eragrostis mexicana subsp. virescens
George K Helmkamp, Elizabeth Helmkamp
2013-10-22
22451
Amador
Sierra Nevada Moutains Foothills: Shanendoah Road, ner Somon Creek, 6.8 miles NE of its juncton with CA-49 in Plymouth (Fiddletown 7.5'Q)
562
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
UCR189920
Eragrostis mexicana subsp. virescens
George K. Helmkamp, E. A. Helmkamp
2007-8-30
12853
El Dorado
Foothills, northern Sierra Nevada Mountains, Prospector Road, 0.1 mile north of Marshall Road near Indian Creek
268
Comment
UCR161105
Eriastrum luteum
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9646
San Luis Obispo
South Central Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 6.7 miles east of Santa Margarita
485
Comment
UCR13832
Eriastrum wilcoxii
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
Comment
UCR14382
Eriastrum wilcoxii
George K. Helmkamp
1974-7-27
s.n.
Inyo
Pleasent Valley, Owens River 9 miles NW of Bishop
1313
Comment
UCR230721
Ericameria arborescens
George K. Helmkamp, E. A. Helmkamp
2010-9-30
16985
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 1.2 miles south of its junction with Peavine Road, 0.9 mi. (air) N of I-50
1448
Comment
UCR233023
Ericameria cuneata var. cuneata
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18326
El Dorado
Northern Sierra Nevada Mountains, Loon Lake [Ice House] Road, 4.1 miles NNE of its junction with Wentworth Springs Road
1942
Comment
UCR13855
Ericameria ericoides
George K. Helmkamp
1973-8-8
s.n.
San Luis Obispo
Central Coast, Morro Bay, Baywood Park, hillside c. 1 mi from ocean
3
Comment
UCR142155
Ericameria ericoides
George K. Helmkamp
2002-8-21
7630
San Luis Obispo
Central Coast, Los Osos at the west end of Howard St.
15
Comment
UCR104784
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1413
San Luis Obispo
c. 6 mi. west of Soda Lake Rd along Calif. Hwy 58
549
Comment
UCR131358
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
1999-4-16
4671
San Diego
Sweetwater River Drainage, Japatul Rd 1/2 mi SE of Loveland Reservoir.
488
Comment
UCR257742
Ericameria nauseosa var. speciosa
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19471
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
UCD131545
Ericameria parryi var. nevadensis
G. K. Helmkamp; E. A. Helmkamp
2007-9-15
12969
El Dorado
Northern Sierra Nevada Mountains: Ice House Road 4.3 miles north of its junction with US-50.
1393
Comment
UCR14388
Erigeron breweri var. bisanctus
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns, E fork of Santa Ana River, 3 mi. below Calif. Hwy 38. [Seven Oaks area]
1677
Comment
UCD131762
Erigeron canadensis
G. 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
UCR15403
Erigeron compositus
George K. Helmkamp
1977-7-3
s.n.
Mono
Sierra Nevada Mtns, just outside of Yosemite [National Park] in the Tioga Pass area [along Hwy 120]
2988
Comment
UCR116019
Erigeron coulteri
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5882
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
UCR257649
Erigeron divergens
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19495
Sierra
Northern Sierra Nevada Mountains, Stampede Dam Road, 1.7 miles north of the Nevada County line, just east of Stampede Reservoir
1770
Comment
UCR190155
Erigeron inornatus var. inornatus
George K. Helmkamp, E. A. Helmkamp
2007-8-1
12645
Placer
Northern Sierra Nevada Mountains, Donner Pass Road between Donner and Norden, about 0.2 mile east of the Nevada Co. border
2151
Comment
UCD132015
Erigeron miser
G. K. Helmkamp; E. A. Helmkamp
2006-8-14
11254
Nevada
Northern Sierra Nevada Mtns, about 0.7 mile east of Donner Pass, along Donner Pass Road.
2041
Comment
UCR190553
Erigeron peregrinus
George K. Helmkamp
2007-6-29
12458
Amador
Northern Sierra Nevada Mountains, south side of CA-88, 0.2 mile west of Carson Spur summit
2421
Comment
SEINET3245754
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp
2007-1
12546
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
UCR275046
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5813
Mono
Sierra Nevada Mountains, South Twin Lake along Lake Mary Road, 3 miles SW of Mammoth Lakes
2561
Comment
UCR206378
Eriodictyon californicum
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14759
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
UCR230619
Eriodictyon californicum
George K. Helmkamp, E. A. Helmkamp
2011-5-10
17249
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
SBBG128843
Eriodictyon lobbii
G. K. Helmkamp, E. A. Helmkamp
2010-8-14
16801
Placer
American Hill Rd, 1.2 mi S of its jct with Foresthill Rd
1567
Comment
UCR110967
Eriodictyon trichocalyx
George K. Helmkamp
1998-6-27
4098
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
UCR134476
Eriogonum baileyi var. baileyi
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4261
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
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
UCR15411
Eriogonum esmeraldense var. esmeraldense
George K. Helmkamp
1977-7-3
s.n.
Mono
Owens Valley, Owens River Road at Big Springs
2195
Comment
UCR130700
Eriogonum fasciculatum var. foliolosum
George K. Helmkamp, E. A. Helmkamp
1999-4-17
4676
San Diego
Peninsular Ranges, Barrett-Smith Rd between Barrett Junction & Barrett School Rd. NE of Calif. Hwy 94
268
Comment
UCR132760
Eriogonum fasciculatum var. foliolosum
George K. Helmkamp
2003-7-29
8029 B
San Luis Obispo
Central Coast, 0.6 mi south of Nipomo Hill in Arroyo Grande area
46
Comment
UCR102548
Eriogonum latifolium
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-26
2144
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
UCR131859
Eriogonum latifolium
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5737
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
CAS-BOT-BC249061
Eriogonum marifolium
George K. Helmkamp; E. A. Helmkamp
2011-8-26
18189
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
UCR237282
Eriogonum marifolium
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19304
Amador
Northern Sierra Nevada Mountains, Bear River Road at the south end of the dam of Lower Bear River Reservoir
1774
Comment
RSA518445
Eriogonum microtheca var. ambiguum
George K. Helmkamp
1990-9-23
D- 9
Lassen
20 miles N of Litchfield along U.S. Hwy 395
1433
Comment
UCR176410
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11155
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 16.7 miles east of its junction with Sly Park Road
1944
Comment
UCR197510
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13763
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
UCR230618
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17844
Tuolumne
Northern Sierra Nevada Mountains Foothills, Forest Route 5N14, 0.6 mile southeast of Boards Crossing bridge of North Fork Stanislaus River
1221
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
UCR253097
Eriogonum nudum var. deductum
George K. Helmkamp, Belinda Pesheck
2013-7-14
21070
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road
2468
Comment
UCR258418
Eriogonum nudum var. deductum
George K. Helmkamp, Amy Barnes
2014-8-11
22988
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 1.7 miles south of Crystal Basin Information Station
1610
Comment
UCR233648
Eriogonum nudum var. oblongifolium
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17765
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 (95 deg. ) of Peardale
686
Comment
UCR241749
Eriogonum nudum var. oblongifolium
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19925
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
UCR240703
Eriogonum nudum var. pubiflorum
George K. Helmkamp, E. A. Helmkamp
2012-9-5
19752
El Dorado
Northern Sierra Nevada Mountains Foothills, along Lotus Road, 1.6 miles south of its junction with CA-49, 1.45 mi. SW (238 deg. ) of Coloma
248
Comment
UCR95909
Eriogonum nummulare
George K. Helmkamp
1996-10-17
1257
Mono
Owens Valley, 0.2 mi. south of Benton Hot Springs, beside Calif. Hwy 120
1745
Comment
UCSB42236
Eriogonum parvifolium
Helmkamp, G.
1973-8-8
San Luis Obispo
Baywood Park
Comment
RSA667315
Eriogonum parvifolium var. parvifolium
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5692
San Luis Obispo
Coastal strand between Los Osos and sand dunes W of the end of Howard St.
15
Comment
UCR18555
Eriogonum roseum
George K. Helmkamp
1974-10-18
s.n.
Madera
Sierra Nevada Mtns. Foothills, Fresno River at Yosemite Forks
854
Comment
CLARK-A1045-1051
Eriogonum spergulinum subsp. reddingianum
George K. Helmkamp
1977-9-1
IV
Mono
Antelope Valley along River, one mile north of Coleville; ; Coleville 7.5'Q
1676
Comment
UCR26660
Eriogonum spergulinum var. reddingianum
George K. Helmkamp
1982-7-1
s.n.
Mono
Owens Valley, along the Owens River at Arcularius Ranch
2149
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
CLARK-A1045-200
Eriogonum thurberi
George K. Helmkamp
1979-4-29
San Bernardino
Morongo Valley Morongo Valley 7.5'Q
Comment
CLARK-A1045-374
Eriogonum trichopes
George K. Helmkamp
1977-5-30
San Bernardino
Kelso roadside; south edge of sand dunes; ; Kelso 15' Q; Kelso 7.5' Q
609
Comment
UCR253075
Eriogonum umbellatum
George K. Helmkamp, Belinda Pesheck
2013-7-14
21083
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road
2468
Comment
CLARK-A1045-601
Eriogonum wrightii
George K. Helmkamp
1977-10-22
San Bernardino
San Bernardino Mountains roadside; ; Forest Falls 7.5' Q
1554
Comment
HSC104169
Eriogonum wrightii var. subscaposum
G. K. Helmkamp, E. A. Helmkamp
2012-8-24
19716
Alpine
Northern Sierra Nevada Mountains; along CA-88 at the Red Vista Rd. junction, east end of Carson Pass near Red Lake
2619
Comment
UCR257945
Eriogonum wrightii var. subscaposum
George K. Helmkamp, Elizabeth Helmkamp
2012-8-24
19716
Alpine
Northern Sierra Nevada Mountains, along CA-88 at the Red Vista Rd. junction, east end of Carson Pass near Red Lake
2619
Comment
CLARK-A1045-356
Eriophyllum ambiguum
George K. Helmkamp
1977-5-30
F
San Bernardino
Kelso Kelso Road summit, north of Kelso; ; Kelso 15'Q
1066
Comment
UCR160761
Eriophyllum confertiflorum
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9518
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
UCR140981
Eriophyllum confertiflorum var. confertiflorum
George K. Helmkamp
2004-4-23
8516
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd, 12.9 mi from Hwy-Calif. Hwy 154 at San Olivos jct.
1159
Comment
UCR159385
Eriophyllum confertiflorum var. confertiflorum
George K. Helmkamp, E. A. Helmkamp
2005-5-12
9430
Monterey
Central Coast Ranges, 8 mi west of US-101 on Calif. Highway G18 in Hames Valley
341
Comment
UCR173305
Eriophyllum lanatum
George K. Helmkamp, Elizabeth Helmkamp
2006-5-18
10471
El Dorado
Northern Sierra Nevada Foothills, Spring Valley; Telephone Ridge area, NW of Riverton. Brockliss Canyon Road, about 11 mi. NW of junction with Meadowridge Road and Ice House Canyon Road (SSW of Union Valley Reservior, c. 1.4 air mi. N of US Hwy 50)
1189
Comment
SEINET3245784
Eriophyllum lanatum var. achilleoides
G. K. Helmkamp, E. A. Helmkamp
2009-1
14845
Sierra
Northern Sierra Nevada Foothills: along CA-49, 1.6 miles north of the Yuba County line (Camptonville 7.5')
902
Comment
UCD132202
Eriophyllum lanatum var. achilleoides
G. K. Helmkamp; Elizabeth Helmkamp, Amy Barnes
2007-6-20
12367
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
UCR194911
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12128
Yuba
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.3 miles south of Camptonville
802
Comment
UCR194950
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12021
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill
793
Comment
UCR196979
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2008-5-20
13464
Yuba
Sierra Nevada Mountains Foothills, along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek
466
Comment
UCR245599
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19107
Calaveras
Northern Sierra Nevada Mountains, Winton Road, 4.1 miles east of its junction with CA-26, NE of West Point
1072
Comment
UCD132189
Eriophyllum lanatum var. croceum
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-20
10497
El Dorado
Northern Sierra Nevada Foothills: Along CA Hwy 193, 0.8 mi. South of Kelsey.
604
Comment
SD239592
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, E. A. Helmkamp
2011-5-19
17291
Amador
Lower Sierra Nevada Foothills: NW of Pardee Reservoir, 0.1 mile east of Rock Creek Road on a gravel spur leading to houses, 4.65 mi. SW (220a^z) of Jackson.
280
Comment
SEINET9262042
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20830
Placer
Northern Sierra Nevada Mountains Foothills; Yankee Jims Road, 3.6 miles northwest of its junction with Forest Hill Road (Foresthill 7.5 Q)
463
Comment
UCR256646
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, Elizabeth Helmkamp
2013-5-30
20731
Nevada
Northern Sierra Nevada Mountains, along Hwy CA-20, 1.6 miles northeast of Pine Flat Way, north of Scotts Flat Reservoir
1189
Comment
RSA755902
Eriophyllum lanatum var. integrifolium
George K. Helmkamp, Amy Barnes
2009-7-8
15164
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
UCR102989
Eriophyllum pringlei
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2837
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
UCR158437
Eriophyllum staechadifolium
George K. Helmkamp
2004-6-15
8633
San Luis Obispo
Central Coast, Between Oso Flaco Lake and the Pacific Ocean, c. 0.3 mi WNW of the lake
9
Comment
CLARK-A1045-301
Eriophyllum wallacei
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q
Comment
UCR64010
Eriophyllum wallacei
George K. Helmkamp
1984-4-20
840420- 9
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
UCD105612
Erodium botrys
G. K. Helmkamp; E. A. Helmkamp
2007-4-30
11891
El Dorado
Northern Sierra Nevada Mountains: hiking trail leaving from CA-49, 3.4 miles northwest of Placerville.
511
Comment
UCR140768
Erodium botrys
George K. Helmkamp
2004-3-13
8353
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR233131A
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17324
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
UCR257553
Erodium cicutarium
George K. Helmkamp, Amy Barnes
2014-3-21
22593
Sutter
Sacramento Valley, along CA-20 (Colusa Hwy), 1.3 miles west of its junction with Acacia Ave., 1.7 air mi. SW of Sutter
13
Comment
UCR140471
Erodium moschatum
George K. Helmkamp
2004-3-13
8354
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR61738
Erysimum capitatum
George K. Helmkamp
1990-4-19
s.n.
San Luis Obispo
along State Hwy 58 at San Juan Creek, west of Simmler-Bitterwater Road
488
Comment
SD239918
Erythranthe bicolor
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17957
Amador
Northern Sierra Nevada Mountains: Ellis Road, 2.1 miles south of its junction with CA-88 (Peddler Hill 7.5'Q)
1794
Comment
SEINET4178676
Erythranthe guttata
George K. Helmkamp, E. A. Helmkamp
2010-1
16706
Calaveras
Northern Sierra Nevada Mountains: Forest route 7N23 0.1 mile north of the junction with CA-4.
2004
Comment
SEINET2472421
Erythranthe lewisii
George K. Helmkamp, E. A. Helmkamp
2008-1
13844
Alpine
Northern Sierra Nevada Mountains; 0.1 mile south of CA-88 on a dead-end spur south of Carson Pass
2590
Comment
UCR206878
Eschscholzia
George K. Helmkamp, E. A. Helmkamp
2009-3-6
14341
El Dorado
Northern Sierra Nevada Mtns. Foothills, Rock Creek Road, 4.9 miles east of its junction with CA-193 and near Rock Creek
483
Comment
SEINET5586229
Eschscholzia caespitosa
G. K. Helmkamp, E. A. Helmkamp
2007-1
11709
Placer
Foothills, Northern Sierra Nevada Mountains: Forest Hill Road, 0.9 mile east of its junction with CA-49 at the bridge of the junction of American River forks.
287
Comment
UCR233450
Eschscholzia caespitosa
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17124
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
UCD95314
Eschscholzia californica
G. K. Helmkamp; E. A. Helmkamp
2007-4-23
11811
Amador
Northern Sierra Nevada Mountains - junction of Tonzi Road and CA-124 about 7 miles north of Ione.
229
Comment
UCR90020
Eschscholzia glyptosperma
George K. Helmkamp
1995-3-28
s.n.
San Bernardino
Eastern Mojave Desert, Beside old US hwy 66, 11.5 mi east of Goffs
650
Comment
UCD95369
Eschscholzia lobbii
G. K. Helmkamp; E. A. Helmkamp
2007-3-14
11634
Sacramento
Sacramento Valley near the edge of Sierra Nevada Mountains; Latrobe Rd. about 5.7 miles west of Latrobe and 1.5 miles W of the El Dorado Co. line.
110
Comment
UCR234194
Eschscholzia lobbii
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17163
Yuba
Sacramento Valley, along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland
44
Comment
UCR237308
Eschscholzia lobbii
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18759
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
UCR250181
Eschscholzia lobbii
George K. Helmkamp
2013-3-9
20158
Sutter
Northern Sacramento Valley, West Butte Road, 5.5 miles north of its junction with West Butte Pass Road, NW foot of Sutter Buttes
24
Comment
CAS-BOT-BC419631
Eschscholzia parishii
G. K. Helmkamp; E. A. Helmkamp
1998-2-18
2735
Riverside
Colorado Desert: Chuckwalla Mts. 10.6 mi SW of Chuckwalla Valley Rd. on Graham Pass Road
Comment
SD225054
Eschscholzia parishii
G. K. Helmkamp
1998-4-4
3160
Riverside
Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumpins station
305
Comment
UCR238374
Eucalyptus tereticornis
George K. Helmkamp, E. A. Helmkamp
2012-2-3
18515
Stanislaus
San Joaquin Valley, junction of Sonora Road and Milton Road, 17 km NE (50 deg. ) of Escalon
58
Comment
SEINET4560812
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2011-1
18164
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill
2019
Comment
UCR242344
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16815
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road 0.6 mile west of Mormon Emigrant Trail in the Leek Spring area
2232
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
UCR160346
Euphorbia albomarginata
George K. Helmkamp
1993-9-22
35 9
San Bernardino
San Bernardino Mtns., 14.4 mi up Burns Canyon from junction of Pioneertown and Pipes Canyon Roads
2073
Comment
SD255715
Euphorbia nutans
George K. Helmkamp, Elizabeth Helmkamp
2012-10-16
20036
Placer
Sierra Nevada Mountains Foothills: city ofNorth Auburn, corner of Locksley Lane and CA-49 (Auburn 7.5'Q)
384
Comment
UCR100354
Euphorbia polycarpa
George K. Helmkamp
1997-9-30
2490
Inyo
White Mountains, [Deep Springs Valley], east side of White Mountains
1585
Comment
UCR141349
Euphorbia polycarpa
George K. Helmkamp, E. A. Helmkamp
1999-9-24
5285
San Bernardino
Southern Mojave Desert., Morongo Road, 1.7 mi north of Two-Mile Road in Twentynine Palms
595
Comment
IRVC29227
Euphorbia serpens
G. K. Helmkamp, E. A. Helmkamp
2004-10-8
8844
San Luis Obispo
Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek Central Coast
136
Comment
UCR209013
Euphorbia serpillifolia
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15507
El Dorado
Sierra Nevada Mountains, Wright's Lake Road, 8.6 miles north of its upper junction with Ice House Road
1785
Comment
UCR179803
Euphorbia serpillifolia subsp. hirtula
George K. Helmkamp, E. A. Helmkamp
2006-10-20
11539
El Dorado
Northern Sierra Nevada Mountains Foothills, Bucks Bar Road, 3.9 miles south of Pleasant Valley Road, general vicinity of Somerset
625
Comment
UCR201911
Euphorbia serpillifolia subsp. serpillifolia
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14049
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail 2.4 miles northwest of its junction with CA-88
2271
Comment
RSA0045226
Euphorbia serpillifolia var. hirtula
George K. Helmkamp, E. A. Helmkamp
2006-9-29
11455
El Dorado
Salmon Falls Rd just west of Calif. Hwy 49 and 4 miles south of Cool.
351
Comment
UCR14956
Euphorbia vallis-mortae
George K. Helmkamp
1976-5-16
s.n.
Inyo
Owens Valley, Cottonwood Road [c. 10 miles south of Lone Pine], west of US 395
1372
Comment
CAS-BOT-BC520330
Eurybia integrifolia
George K. Helmkamp; Amy Barnes
2012-8-12
19602
Alpine
Northern Sierra Nevada Mountains: Woods Lake Road, 0.8 mi SE of jct with CA-88 and beside Woods Creek
2285
Comment
UCR218999
Euthamia occidentalis
George K. Helmkamp, E. A. Helmkamp
2009-10-10
15673
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Patterson Dr. and CA-49 in Diamond Springs
520
Comment
UCR257198
Festuca arundinacea
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20552
El Dorado
Sierra Nevada Mountains Foothills, along E-16 (Mt. Aukum Rd.), 3.3 miles north of the Amador County line, near D'Agostini Reservoir
569
Comment
SEINET3271564
Festuca dertonensis
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14387
Placer
Sacramento Valley; Ranch House Road, 0.2 mile south of Sheridan
37
Comment
UCR242952
Festuca dertonensis
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15828
San Joaquin
Northeast San Joaquin Valley, junction of CA-88 and CA-12, about 6 miles NE of Lockeford, 1.2 mi. NE of Clements
40
Comment
UCR100944
Festuca microstachys
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3194
Kern
SW of Maricopa 1.7 mi NW of Calif. hwy 33 on Elkhorn Grade Rd.
396
Comment
UCR158613
Festuca microstachys
George K. Helmkamp, E. A. Helmkamp
2005-4-16
9346
Santa Barbara
Outer South Coast Range, Sierra Madre Mountains, 1.1 mi south of Calif. Hwy 166 on Miranda Pines Road
526
Comment
SEINET4691849
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2012-1
18586
Sacramento
Sacramento Valley/Delta: Twin Cities Road (Co. Rd. E-13), 0.1 mile NE of its junction with I-5.
5
Comment
UCR158936
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9376
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UCR170022
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2005-2-18
8945
Santa Barbara
Central Coast, Solomon Hills SE of Santa Maria along Dominion Road, 1.9 mi. SE of its junction with Clark Avenue
259
Comment
UCR257036
Festuca myuros var. hirsuta
George K. Helmkamp, Amy Barnes
2014-3-21
22614
Sutter
Sacramento Valley, Along CA-20 (Colusa Hwy), 0.3 mile west of South Tarke Road, 3.75 miles east of Meridian
13
Comment
UCR249953
Festuca perennis
George K. Helmkamp, Elizabeth Helmkamp
2013-4-13
20311
Nevada
Northern Sierra Nevada Mountains Foothills, Magnolia Road, 3.0 miles east of its junction with CA-49
495
Comment
UCR250081
Festuca perennis
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20498
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road at the north side of the bridge over West Fork of North Fork American River, 5.2 mi. east (87 deg. ) of Forest Hill
422
Comment
UCR170436
Ficus carica
George K. Helmkamp, Elizabeth Helmkamp
2005-10-29
10009
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
CLARK-A1045-169
Filago arizonica
George K. Helmkamp
1979-4-27
Riverside
Santa Ana Mountains Wildomar 7.5'Q
Comment
CLARK-A1045-227
Filago arizonica
George K. Helmkamp
1978-4-1
Riverside
Cabazon north of Interstate highway 10; disturbed soil; Cabazon 7.5'Q
Comment
SEINET4560893
Fragaria vesca
George K. Helmkamp, E. A. Helmkamp
2011-1
17498
Nevada
Northern Sierra Nevada Mountains Foothills: Tyler Foote Crossing Road, 1.6 miles north of its junction with Grizzly Hill Road, generally north of North Columbia.
930
Comment
UCR258531
Fragaria vesca
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20432
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing/Bonnetti Road, 0.2 mile northwest of the bridge over Diamond /Camp Creek
1155
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
SEINET1906695
Frankenia salina
G. K. Helmkamp, E. A> Helmkamp
2004-1
8694
Santa Barbara
Central Coast: Ocean Park at Surf, NW of Lompoc.
6
Comment
UCR122283
Fraxinus dipetala
George K. Helmkamp, E. A. Helmkamp
2002-4-15
7378
Santa Barbara
Sierra Madre Mountains, Miranda Pine Rd., 4.3 mi SE of Calif. Hwy 166
915
Comment
SEINET4560804
Fraxinus latifolia
George K. Helmkamp, E. A. Helmkamp
2011-1
17760
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 (95 degrees) of Peardale
686
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
UCR173290
Galium aparine
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10518
El Dorado
Northern Sierra Nevada Foothills, NE of Georgetown; along Bottlehill Road, 1.4 mi. N of Wentworth Springs Road
1006
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
UCR61706
Galium aparine
George K. Helmkamp
1990-4-17
s.n.
San Luis Obispo
Avila Beach [near Sycamore Springs], San Luis Bay Drive and Avila Beach Drive
15
Comment
SD235015
Galium bolanderi
G. K. Helmkamp, E. A. Helmkamp
2006-8-11
11214
Placer
Northern Sierra Nevada Mtns foothills: along Forest Hill Rd., 8.7 miles northeast of Forest Hill.
1310
Comment
SEINET4560817
Galium bolanderi
George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp
2010-1
19808
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
UCD121613
Galium bolanderi
G. K. Helmkamp; E. A. Helmkamp
2006-8-11
11214
Placer
Northern Sierra Nevada Mtns foothills: along Forest Hill Rd., 8.7 miles northeast of Forest Hill.
1311
Comment
UCR170244
Galium bolanderi
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9902
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
UCR206857
Galium bolanderi
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15200
Placer
Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill
1704
Comment
UCR219025
Galium bolanderi
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16351
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
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
UCR249615
Galium bolanderi
George K. Helmkamp, Elizabeth Helmkamp
2013-6-11
20840
Placer
Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 0.1 mile northwest of its junction with Spring Garden Road
738
Comment
UCR61708
Galium nuttallii
George K. Helmkamp
1990-4-19
s.n.
San Luis Obispo
West Cuesta Ridge, 3 miles NW of US 101, north of San Luis Obispo
671
Comment
SEINET270109
Galium parishii
G. Helmkamp
1993-9-22
38 -11
San Bernardino
Dry meadow and rocky meadow edge at junction of Burns Canyon and Round Valley Roads
2195
Comment
CDA36253
Galium parisiense
G. K. Helmkamp, E. A. Helmkamp
2007-4-23
11801
Amador
Foothills, Northern Sierra Nevada Mountains; Junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione.
Comment
UCR206567
Galium parisiense
George K. Helmkamp, E. A. Helmkamp
2009-6-13
14990
Shasta
Southern Cascade Range, Wilson Hill Road, 0.7 mile south of its junction with CA-44 in Shingletown
1088
Comment
UCR257585
Galium porrigens
George K. Helmkamp, Elizabeth Helmkamp
2014-2-22
22529
Nevada
Sierra Nevada Mountains Foothills, Garden Bar Road, 2.8 road miles west of Wolf Road at Wolf, 3.9 air miles WNW (287 deg. ) of Higgins Corner
387
Comment
UCR107369
Galium porrigens var. porrigens
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3724
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; beside Guadalupe Reservoir
201
Comment
UCR237042
Galium porrigens var. porrigens
George K. Helmkamp, E. A. Helmkamp
2012-4-21
18815
Nevada
Northern Sierra Nevada Mountains Foothills, junction of Lime Kiln Road and Amberley Lane, 14.5 mi. NNW (345 deg. ) of Auburn
414
Comment
UCR206341
Galium sparsiflorum subsp. glabrius
George K. Helmkamp, E. A. Helmkamp
2009-6-14
15027
Shasta
Southern Cascade Range, Water Leaf Lane (apparently very new, short spur), 0.2 mile south of CA-44 junction 1.2 miles west of Shingletown
992
Comment
SEINET4691689
Galium sparsiflorum subsp. sparsiflorum
George K. Helmkamp, E. A. Helmkamp
2010-1
16781
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
CAS-BOT-BC444022
Galium triflorum
George K. Helmkamp; Elizabeth Helmkamp
2013-7-6
20977
Amador
Northern Sierra Nevada Mountains: Bear River Road at the south end of the dam for Lower Bear River Reservoir.
543
Comment
UCD132410
Gamochaeta
G. K. Helmkamp; E. A. Helmkamp
2006-8-14
11227
Nevada
Northern Sierra Nevada Mountains: just south of I-80 on Lake Valley Rd.
1755
Comment
CLARK-A1045-710
Gaura coccinea
George K. Helmkamp
1978-5-6
San Bernardino
Mojave Desert Clark Mt 15'Q
Comment
UCR241748
Gayophytum
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19926
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
UCD103657
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2007-8-4
12686
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
UCD103679
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2007-9-11
12925
El Dorado
Northern Sierra Nevada Mountains: Along Hwy. US-50, 0.4 mile southwest of Phillips.
1829
Comment
UCR115824
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5860
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
UCR123373
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6880
Plumas
Sierra Nevada Mountains, Calif. Hwy 36, 4.3 mi SW of its junction with Calif. Hwy 89, vicinity of Lake Almanor
1463
Comment
UCR188560
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13015
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
UCR190708
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp
2007-6-29
12433
Amador
Northern Sierra Nevada Mountains, Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
UCR206078
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, Mary Alice Barnes, Amy Barnes
2008-7-28
13907
El Dorado
Northern Sierra Nevada Mountains, Wrights Lake Road, 3.4 miles north of its junction with CA Hwy 50
2043
Comment
UCR215919
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15071
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
UCR249574
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20862
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
UCR176356
Gayophytum heterozygum
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10870
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
SD237537
Gayophytum humile
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15271
El Dorado
Sierra Nevada Mountains: Wright Lake Road, 1.2 miles south of Wrights Lake (Pyramid Peak 7.5'Q)
2073
Comment
UCR13904
Gayophytum racemosum
George K. Helmkamp
1973-6-14
s.n.
Mono
Owens Valley, Owens River at Benton Crossing, just north of Crowley Lake
2134
Comment
CDA4094
Genista monspessulana
G. K. Helmkamp, E. A. Helmkamp
1998-5-19
3885
San Luis Obispo
Santa Lucia Range. Southwest of Paso Robles along CA-46 at York Mountain Rd.
Comment
UCR219185
Genista monspessulana
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16367
Amador
Sierra Nevada Mountains Foothills, Rams Horn Grade, 1.8 rd. miles northeast of Volcano at the junction with Sutter Creek Road
730
Comment
CLARK-A1045-1151
Gentiana simplex
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
CDA36219
Geranium dissectum
G. K. Helmkamp, E. A. Helmkamp
2009-5-29
14870
El Dorado
Sierra Nevada Mountains Foothills; Lake Oaks Mobile Home Park, Diamond Springs.
Comment
RSA0028472
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2011-6-2
17430
Nevada
Along CA-20, 3.3 miles west of its junction with CA-49 in Grass Valley
627
Comment
RSA789881
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2012-4-17
18776
Yolo
Along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland
65
Comment
SBBG61312
Geranium dissectum
G. K. Helmkamp with E. A. Helmkamp
2011-4-1
17117
Colusa
Maxwell Rd, 2.1 mi E of Maxwell, near Delevan Wildlife Refuge
23
Comment
SD239775
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18739
Butte
Northern Sacramento Valley: Middle Noncut Road, 1.5 miles east of CA-70, ESE of Gridley.
17
Comment
SEINET3860286
Geranium dissectum
George K. Helmkamp, Amy Barnes
2010-5-7
15975
Calaveras
Sierra Nevada Mountains Foothills: along CA-49, 0.4 mile north of its junction with CA-12, vicinity of San Andreas.; 0
233
Comment
SEINET4178557
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17612
Amador
Northern Sierra Nevada Mountains Foothills: junction of Pine Grove to Volcano Road and Aqueduct Road, 0.76 mi. ENE of Pine Grove.
777
Comment
UCR121492
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4956
San Mateo
Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City
457
Comment
UCR208548
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2009-5-11
14676
Placer
Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn
517
Comment
UCR238406
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18720
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
OBI82254
Geranium dissectum
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22164
Amador
Along Ca-49, just northeast of its junction with Randolph Court, c. 1 km S of Plymouth. Open field with a wet depression. 7.5' Q
Comment
CAS-BOT-BC183855
Geranium molle
G. K. Helmkamp; E. A. Helmkamp
2005-3-25
9207
San Luis Obispo
Outer South Coast Ranges: Santa Lucia Wilderness; Hi Mountain Road, 6.7 miles ENE of Lopez Lake near Salt Creek
399
Comment
RSA755432
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14518
El Dorado
junction of Rock Creek Road and CA-193, north of Chili Bar and the South Fork of the American River
390
Comment
RSA782386
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2010-4-23
15905
Placer
along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill.
287
Comment
UCD103419
Geranium molle
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-25
10214
El Dorado
Northern Sierra Nevada Foothills: E of Sacramento, SW of Placerville. Forni road between US Highway 50 and Diamond Springs, at Weber Creek.
488
Comment
UCR184956
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2007-4-26
11854
Calaveras
Northern Sierra Nevada Mountains Foothills, Mokelumne Vista, 0.4 mile south of Calif. Hwy 49 and Mokelumne Hill
442
Comment
UCR234203
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2011-4-12
17176
El Dorado
Foothillls 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
UCR237044
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2012-4-21
18813 A
Nevada
Northern Sierra Nevada Mountains Foothills, junction of Lime Kiln Road and Amberley Lane, 14.5 mi. NNW (345 deg. ) of Auburn
414
Comment
RSA747029
Geranium pusillum
George K. Helmkamp, E. A. Helmkamp
2007-4-26
11845
Calaveras
Chili Gulch near McSorley Ranch, along Calif. Hwy 49, 5.1 miles south of the Amador County line
370
Comment
UCR188831
Geranium pusillum
George K. Helmkamp, E. A. Helmkamp
2007-3-23
11698
El Dorado
Northern Sierra Nevada Mountains Foothills, hills bordering the east end of Sacramento Valley. Salmon Falls Road, 4.6 miles north of Green Valley Road, above NE arm of Folsom Lake
384
Comment
UCR189197
Geranium richardsonii
George K. Helmkamp
2007-7-7
12481
Alpine
Northern Sierra Nevada Mountains, along CA-89, 1.3 miles north of its junction with CA-88
2262
Comment
UCR103827
Geum macrophyllum var. perincisum
George K. Helmkamp, E. A. Helmkamp
1997-9-10
2340
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
UCR176388
Gilia
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10875
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
SEINET3860395
Gilia achilleifolia subsp. achilleifolia
George K. Helmkamp, E. A. Helmkamp
2010-6-4
16230
Sonoma
North Coast Ranges: Mark West Springs Raod, 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east of Windsor.; 0
155
Comment
UCR129960
Gilia achilleifolia subsp. multicaulis
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5544
Monterey
Outer south coast ranges., Nacimiento Road, 10.4 mi west of Mission Road, just south of Mission San Antonio
457
Comment
UCR121703
Gilia brecciarum subsp. brecciarum
George K. Helmkamp, E. A. Helmkamp
2001-4-26
6478
Kern
Tehachapi Mtns, Tehachapi Willow Springs Rd at Oak Creek Pass.
1463
Comment
UCR129537
Gilia brecciarum subsp. neglecta
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4038
Kern
Western Mojave Desert, South base, Tehachapi Mtns., 4.0 mi north of Calif. Hwy 138 (Lancaster Rd) on 300th St. West
1006
Comment
SD148097
Gilia cana subsp. speciosa
G. K. Helmkamp, E. A. Helmkamp
2001-4-27
6514
Kern
Tehachapi Mountains; Hart Flat turnoff from CA-58.
883
Comment Read comments Dec 21 2016
UCR76725
Gilia cana subsp. speciosa
George K. Helmkamp
1993-4-24
s.n.
San Bernardino
Eastern Mojave Desert, Shadow Valley, at the junction of Cima [Exselsior Mine] Road and Kingston Road, between I-15 and the Kingston Mountains
1220
Comment
CLARK-A1045-54
Gilia cana subsp. triceps
George K. Helmkamp
1977-4-24
Inyo
Panamint Mountains north of Townes Pass; dry slope north of Pass; ; Panamint Butte, 7.5'
1219
Comment
RSA781219
Gilia capillaris
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16601
El Dorado
trailhead at the east end of Wright's Lake, 1.2 miles north of the visitor's center at the lake entrance
2127
Comment
RSA785622
Gilia capitata subsp. mediomontana
George K. Helmkamp, Mary Alice Barnes, Mary Jane Ganibe
2010-7-6
16449
El Dorado
Silver Fork Road, 1.9 miles south of its junction with US-50 in Kyburz.
1473
Comment
UCD117712
Gilia capitata subsp. mediomontana
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12585
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
UCR249572
Gilia capitata subsp. mediomontana
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20864
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
RSA0012161
Gilia capitata subsp. pedemontana
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17764
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 (95 deg.) of Peardale
686
Comment
RSA0012222
Gilia capitata subsp. pedemontana
George K. Helmkamp, E. A. Helmkamp
2011-5-10
17247
Amador
along Sutter Creek near Sutter Creek Rd., 2.9 air miles NE (68 deg.) of town of Sutter Creek
412
Comment
UCR161691
Gilia clivorum
George K. Helmkamp, E. A. Helmkamp
2005-2-24
8959
San Luis Obispo
South Coast Ranges, along Huasna Road, c. 5 mi. NE of its junction with Huasna Towship Road (generally east of Arroyo Grande)
244
Comment
CLARK-A1045-464
Gilia diegensis
George K. Helmkamp
1979-6-5
#2
San Bernardino
San Bernardino Mountains along Forest Service road 3N08 at junction with 3N66Y; dry flat; yellow pine forest; Big Bear City 7.5'Q
Comment
UCR176015
Gilia leptalea
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11032
El Dorado
Northern Sierra Nevada Mtns, 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd
2226
Comment
RSA781218
Gilia leptalea subsp. bicolor
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16589
El Dorado
trailhead at the east end of Wright's Lake, 1.2 miles north of the visitor's center at the lake entrance
2127
Comment
SEINET11265980
Gilia leptalea subsp. bicolor
George Helmkamp, E. A. Helmkamp
2010-8-20
16813
El Dorado
Northern Sierra Nevada Mountains: Foster Meadow Road 0.6 miles west of Mormon Emigrant Trail in the Leek Spring area (Tragedy Spring 7.5' Q.); 0
2232
Comment
SEINET11266087
Gilia leptalea subsp. bicolor
George Helmkamp, E. A. Helmkamp
2011-9-13
18250
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 (231/4) of Alder Hill (Tragedy Spring 7.5' Q.); 0
2274
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
CLARK-A1045-1040
Gilia micromeria
George K. Helmkamp
1977-7-3
Mono
Long Valley US Highway 395; June Lake 7.5'Q
Comment
UCR104043
Gilia modocensis
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2816
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
UCR102956
Gilia scopulorum
George K. Helmkamp
1997-3-2
1310
San Bernardino
Mojave Desert, Town of Morongo Valley, near Vista & Pinyon.
808
Comment
UCR29823
Gilia scopulorum
George K. Helmkamp
1983-3-24
383- 16
Riverside
Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road
336
Comment
CLARK-A1045-1286
Gilia stellata
George K. Helmkamp
1978-3-16
San Diego
Anza-Borrego Desert State Park Bisnaga Alta Wash; Sweeney Pass 7.5'Q
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
RSA789510
Gilia tricolor subsp. tricolor
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15835
San Joaquin
along CA-88, 1.1 miles southwest of the Amador County line, 6 miles NE (33 deg.) of Clements
79
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
UCD85120
Glyceria elata
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12785
El Dorado
Northern Sierra Nevada Mountains. Ice House Road. 21.3 miles north of CA-50 at Robbs Hut Road.
2078
Comment
UCR258120
Glyceria elata
George K. Helmkamp, Amy Barnes
2014-8-11
23008
El Dorado
Northern Sierra Nevada Mountains, north of Union Valley Reservoir, junction of Robbs Peak Road and Ice House Road
1655
Comment
UCR163023
Gnaphalium californicum
George K. Helmkamp, E. A. Helmkamp
2005-4-6
9312
Santa Barbara
Outer South Coast Ranges, Old Highway US 101, road to Nojoqui Falls, 0.2 mi south of junction with US Highway 101
204
Comment
UCR91820
Gnaphalium californicum
George K. Helmkamp
1996-5-24
1030
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
UCR170322
Gnaphalium canescens subsp. beneolens
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10036
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
UCR245583
Gnaphalium canescens subsp. beneolens
George K. Helmkamp, Amy Barnes
2013-9-24
22382
Tuolumne
Northern Sierra Nevada Mountains, Boards Crossing of the North Fork of the Stanislaus River
1244
Comment
UCR253144
Gnaphalium canescens subsp. beneolens
George K. Helmkamp, E. A. Helmkamp
2013-11-27
22492
El Dorado
Sierra Nevada Mountains Foothills, Capp's Crossing Road, 0.4 mile southeast of its junction with Mormon Emigrant Trail
1204
Comment
RSA757090
Gnaphalium canescens subsp. thermale
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15199
Placer
Foresthill Road, 20.3 miles northeast of the city of Foresthill.
1704
Comment
UCR132285
Gnaphalium luteoalbum
George K. Helmkamp
2003-8-31
8113
Santa Barbara
Central Coast, Casmalia Hills, 4 mi west of Calif. Hwy 1 (south of Guadalupe) along Brown Road
183
Comment
SBBG126178
Gnaphalium palustre
G. K. Helmkamp with E. A. Helmkamp
2009-8-19
15510
El Dorado
Wright's Lake Rd, 8.6 mi N of its upper jct with Ice House Rd
1785
Comment Read comments Mar 23 2014
SD197685
Gnaphalium palustre
G. K. Helmkamp, E. A. Helmkamp
2008-8-1
13943
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road at Lyons Creek, 4.0 miles north of CA-50.
2043
Comment
UCR229464
Gnaphalium palustre
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18035
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 5.0 miles [northeast] of Boards Crossing of the North Fork Stanislaus River
1716
Comment
UCR188520
Grindelia camporum var. camporum
George K. Helmkamp, E. A. Helmkamp
2007-9-24
13001
Calaveras
Foothills, northern Sierra Nevada Mountains, along Hwy CA-49, 0.5 mile west (northbound route) of Mokelumne Hill
396
Comment
CAS-BOT-BC518710
Grindelia hirsutula
George K. Helmkamp; Amy Barnes
2014-8-27
23027
Alpine
Northern Sierra Nevada Mountains: West Fork Carson River canyon, along Hwy CA-88-Carson Pass Hwy, 2.6 mi E of jct with Hwy 89/Luther Pass Rd
1994
Comment
UCR91703
Grindelia hirsutula
George K. Helmkamp
1996-5-24
1019
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
RSA779439
Grindelia nana
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16364
Amador
Rams Horn Grade, 1.8 rd. miles northeast of Volcano at the junction with Sutter Creek Road
730
Comment
UCR106432
Grindelia stricta var. stricta
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2190
Mendocino
North Coast, Big River, 0.2 mi east of US-1, south of Mendocino
6
Comment
UCR137744
Gutierrezia sarothrae
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5298
San Bernardino
San Bernardino Mountains, 5.7 miles up Burns Cyn Rd from Rimrock Rd., NW of Pioneertown
1768
Comment
UCR194719
Gypsophila elegans
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13084
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
UCR79659
Gypsophila elegans
George K. Helmkamp
1993-7-10
X- 03
San Bernardino
Mojave Desert, Morongo Valley at 49038 Vista Dr. [E of Pinon, north of Tamarisk]
823
Comment
RSA791759
Hackelia velutina
George K. Helmkamp, E. Helmkamp
2006-7-7
10814
El Dorado
Northern Sierra Nevada Mountains.: Wright s Lake Road, 3.2 miles north of Highway US-50, northeast of Kyburz
1982
Comment
UCR229462
Hackelia velutina
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18055
Calaveras
Northern Sierra Nevada Mountains, Black Springs Road [Forest Route 7N23], 1.7 miles north of its junction with CA Hwy 4
2058
Comment
CLARK-A1045-1129
Haplopappus bloomeri
George K. Helmkamp
1977-9-1
III
Alpine
Sierra Nevada roadside in sagebrush scrub area at the Pass; ; Topaz Lake 7.5'Q
2529
Comment
UCR159319
Helenium puberulum
George K. Helmkamp, E. A. Helmkamp
2004-7-14
8771
Santa Barbara
Southern Central Coast, Surf, NW of Lompoc
46
Comment
UCR257055
Helenium puberulum
George K. Helmkamp, E. A. Helmkamp
2013-11-9
22482
Calaveras
Sierra Nevada Mountains Foothills, Gwin Mine Road, 0.1 mile south of the Middle Bar Bridge over North Fork Mokelumne River
183
Comment
UCR207103
Helianthella californica var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15223
Placer
Sierra Nevada Mountains, Forest Hill Road, 26.1 miles northeast of the city of Foresthill, c. 3/4 mi. NW of Sailor Flat
2020
Comment
SEINET1004419
Helianthus annuus
George K. Helmkamp
2004-1
8290
San Luis Obispo
Central Coast: Nipomo Mesa, Pomeroy Rd., 1.1 mi N of Willow rd.
130
Comment
UCR194982
Helianthus annuus
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13093
San Joaquin
Northern San Joaquin Valley, along Hwy CA-88, 1.0 mile southwest of Clements at Disch Road
37
Comment
UCR242842
Helianthus annuus
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15871
Solano
Northern San Joaquin Valley, Pitt School Road, 3.8 miles south of its junction with I-80 and south of Dixon
21
Comment
SD197694
Helminthotheca echioides
G. K. Helmkamp, E. A. Helmkamp
2008-10-30
14289
Sacramento
Southern Sacramento Valley: along Highway E13 (Twin Cities Road) 4.4 miles west of its junction with CA-99.
4
Comment
RSA749733
Hemizonia fitchii
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14223
Sutter
Pass Road on the south side of Sutter Buttes, 6.9 miles west of Sutter
84
Comment
UCR179793
Hemizonia fitchii
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11475
Amador
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49, 1.1 miles south of Plymouth
314
Comment
IRVC28932
Hemizonia increscens subsp. increscens
G. K. Helmkamp
2003-10-24
8215
San Luis Obispo
El Campo Rd 0.1 mi E of Los Berros Rd, SE of Arroyo Grande Central Coast
46
Comment
UCR262437
Hemizonia parryi subsp. parryi
George K. Helmkamp, E. A. Helmkamp
2011-12-7
18499
Yolo
Southern Sacramento Valley, midway between Davis and Sacramento along Hwy 80, between Chiles Road (County Road 32B) and Levee Road, west edge of Yolo Bypass Wildlife Area
11
Comment
RSA667356
Hemizonia pungens subsp. pungens
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6535
Kern
Central CA Valley: Enos Lane Rd., 1.9 mi S of CA-119 (NE of Taft).
61
Comment
UCR123931
Hemizonia pungens subsp. pungens
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6535
Kern
San Joaquin Valley, Enos Lane Rd., 1.9 mi south of Calif. Hwy 119, NE of Taft
61
Comment
UCR190565
Heracleum maximum
George K. Helmkamp
2007-6-29
12439
Amador
Northern Sierra Nevada Mountains, Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
UCR100852
Hesperocallis undulata
George K. Helmkamp, E. A. Helmkamp
1998-3-18
2876
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the junction of Hwy Calif Hwy 98 with I-8)
46
Comment
UCR101118
Hesperocallis undulata
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2943
Imperial
Sonoran (Colorado) Desert, Imperial Dam area, along Ferguson Rd, 1.5 mi. north of Hwy S-24.
91
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
SD239895
Heteromeles arbutifolia
George K. Helmkamp, E. A. Helmkamp
2008-6-5
13605
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road, 0.5 mile north of its crossing of the South Fork American River (Slate Mountain 7.5'Q)
668
Comment
UCR218219
Heteromeles arbutifolia
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16418
Placer
Sierra Nevada Mountains Foothills, along CA-49 in the section dropping rapidly to the American River forks; about 1/2 mile east of Auburn
355
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
UCR200936
Heterotheca grandiflora
George K. Helmkamp, E. A. Helmkamp
2008-9-30
14183
Calaveras
Foothills, northern Sierra Nevada Mountains, along CA-49, 1.9 miles south of Mokelumne Hill
381
Comment
UCR171398
Heterotheca oregona
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9969
Placer
Northern Sierra Nevada Mtns., c. 3.5 mi NW of Lake Tahoe; Along the Truckee River and Calif. Highway 89, 0.1 mi N of Alpine Meadows Road
1902
Comment
UCR188244
Heuchera
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11859 A
El Dorado
Foothills, Northern Sierra Nevada Mountains, Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House
1027
Comment
UCR229398
Heuchera micrantha
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17937
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
UCR122216
Hieracium albiflorum
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5807
Mendocino
North Coast Range, 9.2 mi east of CA Hwy 1 on CA Hwy 20, southeast of Fort Bragg
305
Comment
UCR206726
Hieracium albiflorum
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15202
Placer
Sierra Nevada Mountains, Foresthill Road, 20.3 miles northeast of the city of Foresthill
1704
Comment
UCR59848
Hilaria rigida
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
UCR249628
Holcus lanatus
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20859
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.9 mile south of its junction with US-50 in Kyburz
1364
Comment
SEINET11261873
Holocarpha virgata
George Helmkamp, E. A. Helmkamp
2011-11-19
18460
Sacramento
Eastern Sacramento Valley: White Rock Coad, .2 mile west of its junction with Placerville Road, 5.5 mi SE (1301/4) of Folsom (Clarkesville 7.5' Q.).; 0
127
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
SEINET2441343
Holocarpha virgata subsp. virgata
George K. Helmkamp, E. A. Helmkamp
2009-8-24
15523
Amador
Sierra Nevada Mountains Foothills: along CA-49 at the junction with Fiddletown Road in the city of Plymouth (Amador City 7.5' Q.).
314
Comment
UCR248383
Holocarpha virgata subsp. virgata
George K. Helmkamp, Elizabeth Helmkamp
2013-9-13
22296
Amador
Northern Sierra Nevada Mountains Foothills, Fiddletown Road, 1.4 miles southeast of Fiddletown
588
Comment
UCR252983
Holodiscus discolor
George K. Helmkamp, Elizabeth Helmkamp
2013-7-6
20985
Amador
Northern Sierra Nevada Mountains, Bear River Road at the south end of the dam for Lower Bear River Reservoir
1784
Comment
UCR196957
Holodiscus microphyllus
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13834
Alpine
Northern Sierra Nevada Mountains, along CA-88, 0.8 mile northeast of Carson Pass
2534
Comment
UCR91689
Hordeum brachyantherum
George K. Helmkamp
1996-5-24
1037
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
UCR248709
Hordeum brachyantherum subsp. brachyantherum
George K. Helmkamp, Belinda Pesheck
2013-7-14
21047
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
SD257137
Hordeum murinum subsp. glaucum
George K. Helmkamp, Amy Barnes
2014-3-21
22597
Sutter
Sacremento Valley: along CA-20 (Colusa Hwy), 1.3 miles west of its junction with Acacia Ave., 1.7 air miles SW of Sutter (Sutter 7.5'Q)
13
Comment
SEINET9259650
Hordeum murinum subsp. leporinum
George K. Helmkamp, Amy Barnes
2014-1
22723
Sacramento
Sacramento Valley: Clay East Road, 1 mile east of its junction with CA-104 (Clay 7.5' Q)
52
Comment
UCR187065
Hordeum murinum subsp. leporinum
George K. Helmkamp, E. A. Helmkamp
2007-5-5
11936
El Dorado
Foothills, Northern Sierra Nevada Mountains, along CA-49, 3.7 miles northwest of Placerville
549
Comment
UCR15507
Horkelia
George K. Helmkamp
1978-6-3
s.n.
San Luis Obispo
Central Coast, Montana de Oro State Park
Comment
UCR15413
Horkelia fusca
George K. Helmkamp
1977-7-3
s.n.
Mono
Sierra Nevada Mtns, just SE of Saddlebag Lake
3354
Comment
SEINET4691398
Horkelia fusca subsp. parviflora
George K. Helmkamp, E. A. Helmkamp
2011-1
18096
Alpine
Northern Sierra Nevada Mountains: Blue Lakes Road, 6.6 miles south of its junction with CA-88.
2296
Comment
UCR206994
Horkelia fusca subsp. parviflora
George K. Helmkamp, Amy Barnes
2009-7-8
15162
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
UCR234608
Horkelia fusca subsp. parviflora
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18096
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 6.6 miles south of its junction with CA-88
2296
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
UCD113486
Horkelia fusca var. parviflora
G. K. Helmkamp; E. A. Helmkamp
2007-8-9
12715
El Dorado
Northern Sierra Nevada Mtns: Wright's Lake; south side of the lake at the entrance to the campground.
2131
Comment
UCR215985
Horkelia tridentata subsp. tridentata
George K. Helmkamp, Amy Barnes
2009-7-12
15178
Placer
Sierra Nevada Mountains, along Foresthill Road 10.3 miles northeast of the town of Foresthill
1370
Comment
UCR237009
Horkelia tridentata subsp. tridentata
George K. Helmkamp, E. A. Helmkamp
2012-5-28
19076
El Dorado
Northern Sierra Nevada Mountains, 1.1 miles east of the E dam of Jenkinson Lake via Mormon Emigrant Trail, then 0.6 mile SE toward Fleming Meadow (?) on an unnamed road off Bonetti Rd.
1169
Comment
CAS-BOT-BC536248
Horkelia tridentata var. tridentata
G. K. Helmkamp; E. A. Helmkamp
2008-6-23
13717
Amador
Dufrene Road, 0.1 mile south of its junction with CA-88, between Mormon Emigrant Trail and Hamms Station, Northern Sierra Nevada Mountains
2075
Comment
SD239737
Hosackia oblongifolia
George K. Helmkamp, E. A. Helmkamp
2010-9-4
16922
El Dorado
Northern Sierra Nevada Mountains: Mehrten Spring Road and continuing on Cat Creek Road, 4.7 miles northwest of CA-88; Middle Fork of Consumnes River (Peddler Hill 7.5'Q)
1620
Comment
SEINET269246
Hydrophyllum occidentale
G. Helmkamp, E. Helmkamp
1995-6-23
95- 8 -6
Alpine
Monito Pass along CA-89.
2530
Comment
UCR177866
Hypericum anagalloides
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11077
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
UCR218626
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2010-6-9
16259
El Dorado
Sierra Nevada Mountains Foothills, Mother Lode Dr., 0.2 mile northeast of its junction with Pleasant Valley Road, 1.1 air mi. WNW (276 deg. ) of El Dorado
474
Comment
UCR233098
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17744
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
UCD110375
Hypericum perforatum subsp. perforatum
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-14
10709
Placer
Northern Sierra Nevada foothills: 0.2 mile north of Forest Hill Road on unnamed road to Lake Clementine (general area northeast of Auburn on Forest Hill Divide).
488
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
UCD133334
Hypochaeris glabra
G. K. Helmkamp
2004-4-21
8490
Santa Barbara
San Rafael Mountains: Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCR140076
Hypochaeris glabra
George K. Helmkamp
2004-4-1
8412
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
RSA795043
Hypochaeris radicata
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17755
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 (95 deg ) of Peardale
686
Comment
UCR173652
Hypochaeris radicata
George K. Helmkamp, Elizabeth Helmkamp
2006-4-7
10156
Amador
Northern Sierra Nevada Foothills, ESE of Sacramento; 1.0 mi south of Plymouth along Calif. Hwy 49
326
Comment
UCR206910
Hypochaeris radicata
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14817
Nevada
Sierra Nevada Mountains Foothills, along CA-49, 2.0 miles north of its junction with CA-20, north of Nevada City
780
Comment
RSA614499
Hyptis emoryi
George K. Helmkamp
1998-2-5
2649
Riverside
Palm Springs, 1.1 mi. W of CA Hwy 111 on Tramway Rd.
335
Comment
UCR163649
Hyptis emoryi
George K. Helmkamp, E. A. Helmkamp
1998-1-24
2608
Imperial
Sonoran (Colorado) Desert, Ogilby Rd, 14.2 mi. south of the junction with Calif. Hwy 78, vicinity of Tumco Wash
183
Comment
UCR248484
Iris hartwegii subsp. hartwegii
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19085
Calaveras
Northern Sierra Nevada Mountains Foothills, Along CA-26, 2.2 km NE (63 deg. ) of Glencoe, 0.8 mile west of the crossing over the South Fork Mokelumne River
741
Comment
UCR256480
Iris hartwegii subsp. hartwegii
George K. Helmkamp, Amy Barnes
2014-5-8
22843
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
UCD138735
Iris hartwegii subsp. pinetorum
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-20
10507
El Dorado
Northern Sierra Nevada: 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
UCR173713
Iris hartwegii subsp. pinetorum
George K. Helmkamp, Elizabeth Helmkamp
2006-5-20
10507
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
UCR175278
Isatis tinctoria
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10702
El Dorado
Northern Sierra Nevada Mountains, Ice House Road at the turnoff to Loon Lake
1982
Comment
HSC79165
Isocoma acradenia
G. K. Helmkamp
1983-10-8
- 11
San Bernardino
Big Morongo Preserve of The Nature Conservancy, Morongo Valley, near the house in the San Bernardino Co. owned area.
762
Comment
OBI43758
Isocoma acradenia var. acradenia
G. K. Helmkamp
1986-9-28
s.n.
Inyo
N edge of Tecop Hot Springs beside Hwy 127
427
Comment
UCR103292
Isomeris arborea
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2667
Riverside
Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road.
457
Comment
SD132254
Iva axillaris
G. Helmkamp
1990-9-23
H 1
Modoc
U. S. Highway 395, 13 miles north of Likely.
1340
Comment
UCR100352
Iva nevadensis
George K. Helmkamp
1997-9-30
2491
Inyo
White Mountains, [Deep Springs Valley], east side of White Mountains
1585
Comment
UC2015649
Ivesia kingii var. kingii
G. K. Helmkamp
1996-10-17
1261
Mono
Ecological Preserve at the east end of River Springs Rd at edge of River Springs Lakes.
Comment
CLARK-A1045-1029
Ivesia lycopodioides
George K. Helmkamp
1977-7-3
Mono
Sierra Nevada flat, dry rocky area on the road to the Lake; ; Mount Dana 7.5'Q
3047
Comment
UC1787279
Ivesia lycopodioides subsp. megalopetala
G. K. Helmkamp
2000-7-19
5929
Inyo
Eastern High Sierra Nevada Mountains: Mosquito Flat, 0.9 mi S of Rock Creek Lake.
3112
Comment
UCR123401
Ivesia lycopodioides subsp. megalopetala
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4370
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
Comment
UCR219138
Juglans californica var. hindsii
George K. Helmkamp, E. A. Helmkamp
2009-9-17
15632
El Dorado
Foothills, northern Sierra Nevada Mountains, Pleasant Valley Road (CA-49) in Diamond Springs, 0.1 mile east of the junction with Patterson Drive
537
Comment
UCR219139
Juglans californica var. hindsii
George K. Helmkamp, E. A. Helmkamp
2009-9-17
15631
El Dorado
Foothills, northern Sierra Nevada Mountains, Pleasant Valley Road (CA-49) in Diamond Springs, 0.1 mile east of the junction with Patterson Drive
537
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
OBI41020
Juncus balticus
G. Helmkamp
1985-4-18
353
San Bernardino
Morongo Cyn. SE of Morongo Valley. Beside the entrance rd
762
Comment
CLARK-A1045-449
Juncus bufonius
George K. Helmkamp
1979-6-20
San Bernardino
San Bernardino Mountains 3 miles from dump above Baldwin Lake; stream bed; Big Bear City 7.5' Q
Comment
HSC79050
Juncus bufonius
G. K. Helmkamp
1984-4-29
- 17
San Bernardino
Little San Bernardino Mtns., Big Morongo Canyon near the Riverside County line, 2 mi. below the Big Morongo Preserve headquarters and 1/4 mi. up a broad side canyon to the E
701
Comment
UCR159839
Juncus bufonius
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9632
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
UCR173680
Juncus bufonius
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10318
Amador
Northern Sierra Nevada foothills, Climax Road southwest of Pine Grove, 0.1 mile west of Calif. Hwy 88
701
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
UCR222350
Juncus bufonius var. bufonius
George K. Helmkamp, E. A. Helmkamp
2010-6-4
16234
Sonoma
North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 9.8 rd. miles east of its junction with US-101, 4.5 air miles SW (250 deg. ) of Calistoga
280
Comment
UCR233336
Juncus confusus
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18230
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
UCR237736
Juncus drummondii
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19383
Amador
Northern Sierra Nevada Mountains, Shot Rock Vista Rest Stop along CA-88 (Carson Pass Hwy), 1 mile west of the junction with Mormon Emigrant Trail
2329
Comment
UCD141507
Juncus effusus subsp. pacificus
G. K. Helmkamp; E. A. Helmkamp
2005-9-23
9908
El Dorado
Northern Sierra Nevada Foothills. Wright's Lake Road (Forest Road 4) 2.1 road miles North of US Highway 50 (around 5-6 miles east of Kyburz).
1854
Comment
UCR170242
Juncus effusus subsp. pacificus
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9908
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
UCR190671
Juncus effusus var. exiguus
George K. Helmkamp, E. A. Helmkamp
2007-9-4
12886
Amador
Northern Sierra Nevada Mountains, along CA-88 at Mile-49, 3.1 miles east of Hams Station
1860
Comment
UCR206992
Juncus effusus var. pacificus
George K. Helmkamp, Amy Barnes
2009-7-8
15150
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
UCR179303
Juncus ensifolius
George K. Helmkamp, E. A. Helmkamp
2006-10-10
11527
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
UCD141563
Juncus longistylis
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11068
El Dorado
Northern Sierra Nevada Mtns: along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Highway US-50.
1864
Comment
UCR14584
Juncus mexicanus
George K. Helmkamp
1974-7-27
s.n.
Mono
Owens Valley, Owens River, Big Springs
2195
Comment
CLARK-A1045-1140
Juncus nevadensis
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCR115850
Juncus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5891
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
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
SD197907
Kelloggia galioides
G. K. Helmkamp, Mary Alice Barnes and Amy Barnes
2008-7-28
13917
El Dorado
Wright's Lake Road, 3.4 miles north of its junction with CA Highway 50.
2043
Comment
SD243202
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 with CA-88.
2018
Comment
SD247500
Kelloggia galioides
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22087
El Dorado
Northern Sierra Nevada Mountains: Mehrten Spring Road, 0.5 mile north of CA-88 (Peddler Hill 7.5'Q)
1793
Comment
UCR197361
Kelloggia galioides
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13719
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
UCR246824
Kelloggia galioides
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16649
Placer
Northern Sierra Nevada Mountains, Forest Hill Road at Hidden Treasure Road, 10.4 miles northeast of the city of Foresthill
1384
Comment
VVC465
Kelloggia galioides
G. K. Helmkamp
1996-6-11
1141
San Bernardino
San Bernardino Mtns., 1.2 mi. SW of Tulip Ave, City of Big Bear Lake
2143
Comment
UCR217844
Kickxia elatine
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16182
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 3.3 miles east of the village of Sutter Creek
413
Comment
UCD133547
Lactuca serriola
G. K. Helmkamp; E. A. Helmkamp
2007-9-24
13005
Calaveras
Northern Sierra Nevada Mountains: in Rich Gulch along Gwin Mine Road, 1.2 miles north fo Paloma.
329
Comment
UCR205149
Lactuca serriola
George K. Helmkamp, E. A. Helmkamp
2008-10-30
14293
Sacramento
Southern Sacramento Valley, along Highway E13 (Twin Cities Road) 4.4 miles west of its junction with CA-99
5
Comment
RSA749726
Lagophylla glandulosa
George K. Helmkamp, E. A. Helmkamp
2008-10-2
14197
Sacramento
Sacramento Valley: Latrobe Road, 7.4 miles west of Latrobe.
67
Comment
SEINET3238898
Lamium amplexicaule
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13148
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
UCR172663
Lamium amplexicaule
George K. Helmkamp, Elizabeth Helmkamp
2006-4-13
10185 A
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
UCR184929
Lamium amplexicaule
George K. Helmkamp, E. A. Helmkamp
2007-3-10
11604
El Dorado
Northern Sierra Nevada Mountains Foothills, Rattlesnake Bar Rd, 3.0 miles southwest of Calif. Hwy 49, SW of Pilot Hill
390
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
CLARK-A1045-20
Langloisia matthewsii
George K. Helmkamp
1977-4-23
San Bernardino
2 miles south of Trona; sandy slope; Searless Lake 15' Q; Westend 7.5' Q
Comment
CLARK-A1045-9
Langloisia schottii
George K. Helmkamp
1977-4-21
San Bernardino
Adelanto 2 miles north of Adelanto; east of U.S. Route 395; creosote bush scrub; ; Adelanto 7.5' Q
883
Comment
UCR120521
Langloisia setosissima subsp. setosissima
George K. Helmkamp, E. A. Helmkamp
2001-3-17
6278
Imperial
Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd.
76
Comment
UCR122938
Langloisia setosissima subsp. setosissima
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6420
San Bernardino
Eastern Mojave Desert, US-95, 8.5 mi south of I-40.
351
Comment
UCR121559
Lapsana communis
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4977 A
San Mateo
Pescadero Creek Watershed, Pescadero Road just north of Loma Mar
107
Comment
UCR219019
Lapsana communis
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16343
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
UCR230988
Lapsana communis
George K. Helmkamp, E. A. Helmkamp
2011-7-2
17628
El Dorado
Northern Sierra Nevada Mountains Foothills, Forni Road at Weber Creek crossing, 1.3 miles south of its Placerville junction with US-50
473
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
SEINET13276810
Lasthenia californica
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20230
Calaveras
Northern Sierra Nevada Foothills: Along CA-26 at the junction with Shelton Road, southwest of Valley Springs, NE of Linden (Valley Springs SW 7.5' Q.)
204
Comment
UCR249965
Lasthenia californica
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20230
Calaveras
Northern Sierra Nevada foothills, Along CA-26 at the junction with Shelton Road, southwest of Valley Springs, NE of Linden
204
Comment
CLARK-A1045-288
Lasthenia coronaria
George K. Helmkamp
1979-5-16
Riverside
San Jacinto Mountains along San Jacinto Ridge Road at Oak Spring turnoff; chaparral; ; Lake Fulmor 7.5'Q
914
Comment
RSA615148
Lasthenia gracilis
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3218
San Luis Obispo
Elkhorn Grade Rd, 13.7 mi NW of jct with CA Hwy 33 (roughly WNW of Maricopa).
549
Comment
UCR103981
Lasthenia gracilis
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1403 B
San Luis Obispo
Inner Coast Range, Carrizo Plain; 15.6 mi. NW of Calif. Hwy 166 on Soda Lake Rd.
732
Comment
UCR161992
Lasthenia gracilis
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9186
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 12.8 mi. NE of Los Olivos
905
Comment
UCR121533
Lathyrus odoratus
George K. Helmkamp, E. A. Helmkamp
2002-4-21
7616
San Luis Obispo
Central Coast, Santa Rosa Creek Rd., 11.2 mi east of Cambria
396
Comment
UCD106442
Lathyrus sulphureus
G. K. Helmkamp
2006-5-20
10494
El Dorado
Northern Sierra Nevada Foothills: Along CA Hwy 193, 0.4 mi. S of Kelsey.
604
Comment
UCD106444
Lathyrus sulphureus
G. K. Helmkamp; Elizabeth Helmkamp
2007-5-7
11949
El Dorado
Northern Sierra Nevada Mountain Foothills: Pedro Hills Road, 0.3 mile west of the junction with CA-49, junction 5.3 miles south of Cool.
299
Comment
UCR217262
Lathyrus sulphureus
George K. Helmkamp, E. A. Helmkamp
2010-5-13
16012
El Dorado
Sierra Nevada Mountains Foothills, Mosquito Road, 4.4 miles northeast of its junction with US-50 in Placerville
620
Comment
UCR256491
Lathyrus sulphureus
George K. Helmkamp
2014-5-2
22832 A
El Dorado
Sierra Nevada Mountains Foothills, Forebay Road at Kodiak Trail, about 1 mile northwest of Forebay Reservoir
1079
Comment
UCR122545
Lathyrus vestitus subsp. vestitus
George K. Helmkamp, E. A. Helmkamp
2001-5-20
6675
Riverside
San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74
1463
Comment
UCR162152
Lathyrus vestitus var. vestitus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8916
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Mtns; east of Lake Lopez, along Lopez Drive, 0.7 mi N of Hi Mountain Road
274
Comment
UCR184846
Laurentia fluviatilis
George K. Helmkamp, E. A. Helmkamp
2007-5-11
11992
El Dorado
Foothills, northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park, Diamond Springs
524
Comment
UCR161910
Layia chrysanthemoides
George K. Helmkamp, E. A. Helmkamp
2005-3-1
8985
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
UCR257023
Layia pentachaeta subsp. pentachaeta
George K. Helmkamp, Amy Barnes
2014-4-23
22783
Placer
Sierra Nevada Mountains Foothills, Old Forest Hill Road, 0.4 mile northeast of its junction with CA-49 at North Fork American River
290
Comment
JEPS119462
Layia platyglossa
George K. Helmkamp with E. A. Helmkamp
2012-2-25
18581
El Dorado
Foothills, northern Sierra Nevada Mountains, SE of Placerville, Pleasant Valley Road, 1.4 miles northeast of Bucks Bar Road and at Gold Oak Charter School
Comment
SD240880
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2012-2-25
18581
El Dorado
Foothills, Northern Sierra Nevada Mountains: SE of Placerville, Pleasant Valley Road, 1.4 miles northeast of Bucks Bar Road and at Gold Oak Charter School (Camino 7.5'Q)
747
Comment
UCR171023
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2006-2-9
10063
Placer
Northern Central Valley, Clark Tunnel Road and Calif. Highway 193, east of Lincoln
113
Comment
UCR143564
Ledum glandulosum
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5838
Mono
Sierra Nevada Mtns., W side of Lake Mary, SW of Mammoth Lakes
2720
Comment
UCR232191
Leersia oryzoides
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18387
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
UCD133976
Leontodon saxatilis
G. K. Helmkamp; E. A. Helmkamp
2006-10-6
11468
Amador
Northern Sierra Nevada Mountains: along Highway CA-49 beside big Indian Creek. 2.2 miles south of el dorado County Line.
271
Comment
UCR183106
Leontodon taraxacoides
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10335
Amador
Northern Sierra Nevada foothills, Grass Valley Creek, 1.2 miles east of Pine Grove along Calif. Hwy 88
762
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
RSA0093525
Leontodon taraxacoides subsp. longirostris
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20611
Amador
Northern Sierra Nevada Mountains Foothills. Stony Creek Road, 6.8 miles southwest of Jackson, 0.57 mi. NE (20 deg ) of Chrome Mountain.
302
Comment
RSA715232
Leontodon taraxacoides subsp. taraxacoides
George K. Helmkamp, E. A. Helmkamp
2005-9-12
9855
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento; Sly Park Road (County Hwy E-16) ca. 2 miles E of Pleasant Valley.
854
Comment
UCR24975
Lepidium appelianum
George K. Helmkamp
1981-8-6
s.n.
Kern
Pinon Pines Camp near Mt. Pinos. [Lake of the Woods] Near the junction of Cuddy Valley Rd. and Lockwood Valley Rd
1677
Comment
UCR101038
Lepidium fremontii
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3313
San Bernardino
Mojave Desert, Between hwy 58 & the Railroad at Edwards Siding (c. halfway between Mojave & Boron).
732
Comment
SD143973
Lepidium lasiocarpum
G. K. Helmkamp, E. A. Helmkamp
1998-3-19
2919
Imperial
Colorado Desert: Imperial Dam area, just south of the dam on highway S-24
75
Comment
UCR120514
Lepidium latifolium
George K. Helmkamp, E. A. Helmkamp
2001-6-3
6803
Solano
San Francisco Bay Region, Hammond Island SE of Fairfield. Grizzly Rd., 7.5 mi SE of entrance to wildlife preserve
6
Comment
UCR182283
Lepidium latifolium
George K. Helmkamp, E. A. Helmkamp
2006-10-23
11568
Amador
Central Valley/ Northern Sierra Nevada Foothills, along Calif. Hwy 16, 0.2 mile east of Waits Station, southwest of Plymouth
305
Comment
UCD115786
Lepidium nitidum
G. K. Helmkamp; E. A. Helmkamp
2007-3-17
11657
Calaveras
Eastern Sacramento Valley: about 1 mile north of Burson on the road to south Comanche Reservoir.
152
Comment
UCR253211
Lepidium nitidum var. nitidum
George K. Helmkamp, Amy Barnes
2014-4-7
22731
Sacramento
Sacramento Valley, Clay East Road, 1 mile east of its junction with CA-104
52
Comment
UCR207448
Lepidium virginicum
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15318
Calaveras
Sierra Nevada Mountains, Ottawa Drive, 0.1 mile south of its junction with CA-4, 1.2 miles northeast of Dorrington
1471
Comment
CLARK-A1045-70
Lepidium virginicum var. pubescens
George K. Helmkamp
1978-4-27
Riverside
San Jacinto Mountains [probably Bee Canyon/San Jacinto Ridge Road area]; Lake Fulmor 7.5'Q
Comment
OBI82113
Lepidium virginicum var. pubescens
George K. Helmkamp, Belinda Pesheck
2013-7-14
21053
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
SEINET11261799
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17900
Placer
Northern Sierra Nevada Mountains: Bowman Lake Road, 0.9 miles N of its junction with CA Hwy 20, 0.85 miles NE (23 degrees) of Emigrant Gap and N of I-80.; 0
1434
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
UCR233355
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18234
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
HSC79073
Lepidospartum squamatum
G. K. Helmkamp
1983-10-8
- 20
San Bernardino
TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside the pipeline road in the middle of the TNC owned area.
762
Comment
UCR59846
Leptochloa filiformis
George K. Helmkamp
1989-9-16
s.n.
Riverside
Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78
79
Comment
UCD118622
Leptosiphon bicolor
G. K. Helmkamp; E. A. Helmkamp
2007-5-31
12253
El Dorado
Northern Sierra Nevada Mountains Forestry Route 32, 0.8 mile east of its junction with Ice House Road.
1616
Comment
SBBG129004
Leptosiphon parviflorus
G. K. Helmkamp, E. A. Helmkamp
2012-4-24
18833
El Dorado
Bear Crk Rd, 0.4 mi S of its jct with Meadow Brook Rd, 2.5 mi NE (66 deg) of Garden Valley
705
Comment
UCR13838
Lessingia filaginifolia
George K. Helmkamp
1973-8-8
s.n.
San Luis Obispo
Central Coast, Morro Bay, Baywood Park, hillside c. 1 mi from ocean
3
Comment
CLARK-A1045-991
Lessingia lemmonii
George K. Helmkamp
1977-6-11
B
Kern
Freeman Canyon Junction of State Highway 178 and 14; ; Freeman Junction 7.5'Q
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
UCR248424
Leucanthemum vulgare
George K. Helmkamp, Elizabeth Helmkamp
2013-7-10
21005
Amador
Northern Sierra Nevada Mountains, Plasse Road toward Silver Lake, 0.3 mile south of CA-88/Carson Pass Hwy
2276
Comment
CLARK-A1045-386
Lewisia nevadensis
George K. Helmkamp
1977-6-5
San Bernardino
San Bernardino Mountains Keller Peak 7.5'Q
Comment
UCR123117
Lewisia pygmaea
George K. Helmkamp, E. A. Helmkamp
1998-8-13
4402
Mono
Eastern Sierra Nevada Mountains, Nunatak trail beside CA Hwy 120, about 1 mi south of Yosemite National Park entrance kiosk
2973
Comment
UCR121447
Lewisia triphylla
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5083
Nevada
Northern Sierra Nevada Range, Tahoe Nat. Forest, Donner Pass Rd. (=Hwy 40), 2.2 mi. west of Lake Donner.
1997
Comment
UCR190336
Ligusticum grayi
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12675
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
UCR206079
Ligusticum grayi
George K. Helmkamp, Mary Alice 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
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
UCR232273
Limnanthes douglasii subsp. rosea
George K. Helmkamp, E. A. Helmkamp
2011-3-29
17089
Calaveras
Eastern San Joaquin Valley, along CA-26, 0.4 mile north of its junction with CA-12, 0.16 mi. N of Double Springs Rd., 4 miles NE (64 deg. ) of Valley Springs
320
Comment
UCR106461
Linanthus bicolor
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3756
Santa Clara
Central Coast Range, Mt.Hamilton Rd (Calif. Hwy 130) east of San Jose; 15.2 mi from the W origin of the Hwy
610
Comment
UCR173357
Linanthus bicolor
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10421
Nevada
Northern Sierra Nevada Foothills, along Calif. Hwy 49, 2.1 mi. N of the South Yuba River bridge
534
Comment
UCR197381
Linanthus bicolor
George K. Helmkamp, E. A. Helmkamp
2008-4-25
13335
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
RSA794892
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17735
Calaveras
Winton Road (Forest Route 7N03), 14.4 miles east of its junction with CA-26 in West Point.
1590
Comment
UCR194924
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2007-5-27
12154
El Dorado
Northern Sierra Nevada Mountains Foothills, 0.7 mile down a hiking trail northeast of CA-49; trail starting 3.5 miles northwest of Placerville
430
Comment
UCR197640
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13637
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 0.6 mile south of its junction with CA-88, jct. is 4.0 miles east of Cook's Station
1607
Comment
UCR206733
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15102
El Dorado
Sierra Nevada Mountains, Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR229585
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17927
El Dorado
Northern Sierra Nevada Mountains, along North-South Road, 1.6 miles north of its junction with Omo Ranch Road, 0.95 mi. NNW (331 deg. ) of Omo Ranch Rd. jct. with Hwy 88
1460
Comment
UCR249545
Linanthus ciliatus
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20902
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail at the junction with Pilliken Road
1825
Comment
UCR88350
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
1995-6-22
95- 4 -26
Calaveras
Sierra Nevada Mtns, along Calif. Hwy 4, 2.5 mi NE of Arnold
1479
Comment
UCSB37070
Linanthus inyoensis
Helmkamp, G.; Vasek, F.
1978-6-2
Mono
Long Valley area of the Owens River, 1.2 miles north of Whitmore Hot Springs
2133
Comment
UCR127139
Linanthus liniflorus
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3838
Monterey
Salinas Valley, 3.7 mi south of Lockwood on G-14, Interlake Road near northwest end of Lake San Antonio
320
Comment
UCR173157
Linanthus parviflorus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-27
10241
El Dorado
Northern Sierra Nevada Foothills, Junction of French Creek Road and Big Canyon Road, 0.5 mi. south of Frenchtown
340
Comment
UCR161232
Linaria bipartita
George K. Helmkamp, E. A. Helmkamp
2004-12-6
8874
San Luis Obispo
Central Coast, Arroyo Grande Community Center, Ash and Elm Streets
30
Comment
UCR141004
Linaria canadensis
George K. Helmkamp
2004-3-10
8335
San Luis Obispo
Central Coast, Nipomo Mesa, along Pomeroy Rd, 0.2 mi N of Willow Rd, NW of Nipomo
91
Comment
UCR196851
Linum lewisii var. lewisii
George K. Helmkamp
2008-6-17
13673
Amador
Northern Sierra Nevada Mountains, Bear River Reservoir Road, 0.1 mile south of its junction with CA-88
1991
Comment
CAS-BOT-BC228607
Lithophragma
George K. Helmkamp; E. A. Helmkamp
2011-5-10
17231
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
UCR191084
Lithophragma campanulatum
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12295
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 2.0 miles south of Mormon Emigrant Trail
1189
Comment
UCR61736
Lithophragma parviflorum
George K. Helmkamp
1990-4-19
s.n.
Kern
Tehachapi Mountains, along State Hwy 58, at Hart Flat Road, 2 miles west of Keene
765
Comment
UCR172655
Lithophragma parviflorum var. parviflorum
George K. Helmkamp, Elizabeth Helmkamp
2006-4-13
10192
El Dorado
Northern Sierra Nevada Foothills, El Dorado National Forest; Along Calif. Hwy 193, 1 mi NE of Greenwood
518
Comment
UCR123984
Loeseliastrum matthewsii
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6391
San Bernardino
Mojave Desert, CA Hwy 62, 16.2 mi east of Utah Trail (Twentynine Palms) near Dale Lake
366
Comment
UCR122444
Lolium perenne subsp. multiflorum
George K. Helmkamp
2002-4-21
7476
San Luis Obispo
Central Coast, Santa Rosa Creek Rd., 6.9 mi east of Cambria
183
Comment
UCR198533
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13209
Calaveras
San Joaquin Valley /Sierra Nevada Mountains Foothills, along CA-26 (joint with CA-12) 10.6 miles southwest of its junction with CA-49
213
Comment
UCR237008
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2012-5-22
19053
El Dorado
Northern Sierra Nevada Mountains, along US-50, 4.0 miles west of Silver Fork
1050
Comment
UCR61716
Lomatium dissectum
George K. Helmkamp
1990-4-19
s.n.
Kern
Tehachapi Mountains, along State Hwy 58, at Hart Flat Road, 2 miles west of Keene
765
Comment
RSA0116242
Lomatium utriculatum
George K. Helmkamp, E. Helmkamp
2000-4-24
5533
Monterey
Coast Ranges: ca 4-5 miles due west of Jolon, Nacimiento-Ferguson road, 1.6 miles west of Mission road (junction just south of Mission San Antonio.)
320
Comment
SD237288
Lomatium utriculatum
G. K. Helmkamp, E. A. Helmkamp
2009-5-7
14628
Placer
Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 13.6 miles east of its junction with Forrest Hill Road in Foresthill.
771
Comment
UCR107329
Lomatium utriculatum
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3652
Monterey
Coast Range, Peachtree Valley, along Calif. Hwy 198, 6.2 mi. west of the Fresno/Monterey County lines.
503
Comment
UCR122615
Lomatium utriculatum
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5567
Monterey
Salinas Valley., 8.4 mi lS of King City along G-14.
381
Comment
UCR173179
Lomatium utriculatum
George K. Helmkamp, Elizabeth Helmkamp
2006-4-6
10123
El Dorado
Northern Sierra Nevada Foothills, Greenstone Road, c. 0.3 mi N of Pleasant Valley Road (ENE of Shingle Springs and south of US Hwy 50)
457
Comment
UCR194931
Lomatium utriculatum
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12012
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill
814
Comment
RSA709455
Lomatium vaginatum
George K. Helmkamp
2004-4-23
8525
Santa Barbara
San Rafael Mountains: Figueroa Mountain Rd., 15.0 mi NE of Los Olivos.
1341
Comment
UCR230935
Lonicera hispidula var. vacillans
George K. Helmkamp, E. A. Helmkamp
2010-10-6
17010
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26 (Stephen P. Teale Hwy), at the junction with Peregrine Road, 1.85 mi. east (84 deg. ) of Mokelumne Hill
503
Comment
UCR174406
Lotus
George K. Helmkamp, Elizabeth Helmkamp
2000-6-18
10551 A
Mendocino
Outer North Coast Ranges, 18.7 mi NW of US Hwy 1 (Cloverdale) along Calif. Hwy 128
274
Comment
CLARK-A1045-536
Lotus argophyllus subsp. decorus
George K. Helmkamp
1979-6-5
#2
San Bernardino
San Bernardino Mountains at the junction of Forest Service road 3N08 and road 3N66Y; dry flat under pines; ; Big Bear City 7.5'Q
2285
Comment
UCR160732
Lotus benthamii
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9517
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
UCR119931
Lotus corniculatus
George K. Helmkamp, E. A. Helmkamp
1999-5-20
43831
Santa Barbara
Central Coast, Casmalia Hills; Corralitos Canyon, southeast of Guadalupe, 3.8 mi southeast of CA Hwy 1 on Brown Road
305
Comment
UCR123137
Lotus corniculatus
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6798
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
UCR91701
Lotus corniculatus
George K. Helmkamp
1996-5-24
1009
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
UCR184969
Lotus denticulatus
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11806
Amador
Foothills, Northern Sierra Nevada Mountains, junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione
229
Comment
UCR158570
Lotus heermannii var. orbicularis
George K. Helmkamp
2004-6-15
8640
San Luis Obispo
Central Coast, Between Oso Flaco Lake and the Pacific Ocean, c. 0.3 mi WNW of the lake
9
Comment
UCR102502
Lotus humistratus
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3278
Kern
Foothills of the Tehachapi Mtns., east of Arvin along Calif. Hwy 223
305
Comment
UCR122255
Lotus humistratus
George K. Helmkamp, E. A. Helmkamp
2002-4-15
7398
Santa Barbara
Sierra Madre Mountains, Miranda Pine Rd., 8.3 mi SE of Calif. Hwy 166; beside Miranda Pine Mountain
1280
Comment
UCR250903
Lotus humistratus
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20345
Placer
Northern Serrra Nevada Mountains Foothills, Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 deg. ) of Colfax
561
Comment
UCR196771
Lotus incanus
George K. Helmkamp, E. A. Helmkamp
2008-6-3
13588
El Dorado
Sierra Nevada Mountains, Forbay Road, 4.8 miles northwest of its junction with CA-50 at Pollock Pines
965
Comment
RSA752662
Lotus micranthus
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13423
Calaveras
Skull Flat Road, 2.5 miles north of its junction with Winton Road, northeast of West Point
916
Comment
RSA0049984
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19135
Amador
Panther Creek Road, 1.5 miles south of its junction with CA-88, 5.0 mi. west (267 deg ) of Bear River Reservoir dam
1590
Comment
UCR170350
Lotus nevadensis var. nevadensis
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9898
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
UCR229539
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17854
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
UCR233316
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18214
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
UCR258975
Lotus nevadensis var. nevadensis
George K. Helmkamp, Amy Barnes
2014-10-10
23130
Amador
Northern Sierra Nevada Mountains, west side of Bear River Reservoir, 0.2 mile north of the dam
1796
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
UCR189044
Lotus oblongifolius var. oblongifolius
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12610
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20
1793
Comment
UCR206680
Lotus oblongifolius var. oblongifolius
George K. Helmkamp, Amy Barnes
2009-7-8
15134
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
UCR219053
Lotus pinnatus
George K. Helmkamp, E. A. Helmkamp
2009-9-15
15611
Amador
Northern Sierra Nevada Mountains, south side of Bear River Reservoir, 0.1 mile east of the dam
1774
Comment
CLARK-A1045-1005
Lotus purshianus
George K. Helmkamp
1978-6-6
Santa Barbara
Santa Ynez Mountains 2 miles north of the Pass; dry field; Solvang 7.5'Q
Comment
UCR209515
Lotus purshianus
George K. Helmkamp, E. A. Helmkamp
2009-8-6
15403 B
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
1590
Comment
UCR176028
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2006-8-17
11265
El Dorado
Northern Sierra Nevada Mtns foothills, Lake Oaks Mobile Home Park
530
Comment
UCR176249
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2006-8-11
11218
Placer
Northern Sierra Nevada Mtns foothills, along Forest Hill Rd., 8.7 miles northeast of Forest Hill
1311
Comment
UCR161221
Lotus salsuginosus var. salsuginosus
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9029
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-A1045-1381
Lotus strigosus
George K. Helmkamp
1978-4-23
San Luis Obispo
Morro Bay Turri Road west of Morro Bay; Morro Bay S 7.5'Q
Comment
UCR145621
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5485 A
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
UCR161930
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
2005-2-24
8970
San Luis Obispo
South Coast Ranges, along Huasna Road, c. 5 mi. NE of its junction with Huasna Towship Road (generally east of Arroyo Grande)
244
Comment
CLARK-A1045-722
Lotus tomentellus
George K. Helmkamp
1978-5-1
San Bernardino
Mojave Desert 3.3 miles north of Slash-X Ranch, off State Highway 247; Ord Mts 15'Q
Comment
UCR201931
Lotus uliginosus
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14024
Placer
Northern Sierra Nevada Mountains, Donner Pass Road on the west side of Donner Pass and east of Norden
2149
Comment
UCR206947
Lotus uliginosus
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14833
Yuba
Sierra Nevada Mountains Foothills, along CA-49, 2.2 miles north of the Camptonville exit
811
Comment
RSA714085
Lotus unifoliolatus
George K. Helmkamp, Elizabeth A. Helmkamp
2005-9-23
9907
El Dorado
Wrights Lake Road (Forest Road 4) 2.1 road miles N o f US Highway 50 (ca. 5-6 mi. E of Kyburz).
1951
Comment
SEINET273128
Lotus wrangelianus
G. K. Helmkamp, E. A. Helmkamp
1998-5-14
3643
Monterey
Along CA Hwy 198 6.2mi W of the King/Monterey County lines
503
Comment
UCR157809
Lotus wrangelianus
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4201
Kern
Tehachapi Mountains, Tehachapi Mountain Park, 4.2 miles SW of Highline Road along Water Canyon Road
1768
Comment
UCR61718
Lupinus
George K. Helmkamp
1990-4-17
s.n.
San Luis Obispo
Avila Beach [near Sycamore Springs], San Luis Bay Drive and Avila Beach Drive
15
Comment
RSA752664
Lupinus adsurgens
George K. Helmkamp, E. A. Helmkamp
2008-4-30
13373
El Dorado
Traverse Creek/Darling Ridge Road, 6.0 miles east of its junction with CA-193, c. 8.5 mi. NNE of Placerville
734
Comment
UCR218265
Lupinus albicaulis
George K. Helmkamp, E. A. Helmkamp
2010-5-22
16077
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
RSA0035850
Lupinus albifrons var. albifrons
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20361
Placer
Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 ) of Weimar
512
Comment
UCR130617
Lupinus albifrons var. albifrons
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4856
Monterey
Santa Lucia Mountains, Willow Creek Rd 1.7 mi east of Calif. Hwy 1 north of Gorda
290
Comment
UCR161786
Lupinus albifrons var. albifrons
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9138
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 6.2 mi. NNE of Los Olivos
402
Comment
SD237431
Lupinus albifrons var. collinus
G. K. Helmkamp, E. A. Helmkamp
2008-5-15
13448
El Dorado
Sierra Nevada Mountains: White Meadow Road about 1.3 miles west of its junction with Ice House Road.
1134
Comment
UCR250637
Lupinus albifrons var. collinus
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20889
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
SD247418
Lupinus apertus
George Helmkamp, E. A. Helmkamp
2013-6-19
20940
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 (Tragedy Spring 7.5'Q)
2116
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
UCR196810
Lupinus arbustus
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13795
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR245853
Lupinus argenteus var. palmeri
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22194
Alpine
Northern Sierra Nevada Mountains, along CA-89, 1.3 miles southwest of Monitor Pass
2503
Comment
SEINET2042025
Lupinus arizonicus
George Helmkamp, E. A. Helmkamp
2001-3-30
6384
San Bernardino
Mojave Desert; CA-62, 16.2 mi E of Utah Tr. (29 Palms) near Dale Lake.
366
Comment
UCR103664
Lupinus arizonicus
George K. Helmkamp, E. A. Helmkamp
1998-1-17
2555
Riverside
Coachella Valley, alongside Hwy 195 south of Mecca and at the S edge of the Torres Martinez Indian Reservation
-30
Comment
SD237433
Lupinus benthamii
G. K. Helmkamp, E. A. Helmkamp
2010-4-23
15908
Placer
Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q)
287
Comment
SD241010
Lupinus benthamii
G. K. Helmkamp, E. A. Helmkamp
2010-4-17
15894
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, about 0.2 mile northeast of the entrance to the Folsom Lake recreational area.
305
Comment
UCR207662
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14537
El Dorado
Sierra Nevada Mountains Foothills, Rock Creek Road, 4.2 miles west of the bridge over Rock Creek
401
Comment
UCR250592
Lupinus benthamii
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20362
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
UCR257565
Lupinus benthamii
George K. Helmkamp, Amy Barnes
2014-4-23
22774
Placer
Sierra Nevada Mountains Foothills, Old Forest Hill Road, 0.4 mile northeast of its junction with CA-49 at North Fork American River
290
Comment
CAS-BOT-BC520366
Lupinus bicolor
George K. Helmkamp
2014-4-5
22662
Amador
Sierra Nevada Foothills: jct of Tonzi Rd and CA-124, NE of Ione
201
Comment
CDA36239
Lupinus bicolor
G. 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.
Comment
RSA613946
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1418
San Luis Obispo
Along CA-58 just W of Navajo Creek (W of Carrizo Plain).Ca. 5 miles south of California Highway 76 on Couser Ranch Rd. onto Lilac Rd. to Wills avocado ranch. (33 deg 15.6N, 117 deg 6W)
335
Comment
RSA785402
Lupinus bicolor
George K. Helmkamp, Laurel Bezdecheck
2010-6-19
16328
El Dorado
Sierra Nevada Mtns Foothills: about 0.1 mi S of Slug Gulch Road at a point 4.7 mi E of its junction with Perry Creek Road.
1021
Comment
SD244159
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19112
Calaveras
Northern Sierra Nevada Mountain Foothills: Lily Gap Road, 0.9 mile northeast of its junction with Winton Road, 8.1 km NE (60a^z) of West Point (Devils Nose 7.5'Q)
1132
Comment
UCD107253
Lupinus bicolor
G. K. Helmkamp; E. A. Helmkamp
2007-5-9
11976
El Dorado
Northern Sierra Nevada Mountains: Ice House Road, 2.0 miles northeast of US-50, c. 1.25 mi. NE of Riverton.
1220
Comment
UCR115560
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2000-4-20
5414
San Luis Obispo
Central Coast, Irish Hills, north of Avila Beach, See Canyon, 7.4 mi south of Los Osos Valley Road
213
Comment
UCR127119
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3810
Monterey
Central Coast Ranges, Salinas Valley Quinado Cyn., 12 mi south of King City along (G-14) Jolon Road
412
Comment
UCR130640
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
1999-4-18
4697
San Diego
Between Lake Henshaw & Matagual Valley, Barrett Hill Rd off of Hwy-79, c. 6.5 mi SW of Warner Hot Springs.
838
Comment
UCR140387
Lupinus bicolor
George K. Helmkamp
2004-3-15
8375
San Luis Obispo
Central Coast, edge of Nipomo Mesa overlooking Cienaga Valley, along Calif. Hwy 1 (Mesa View Dr.), 0.3 mi N of Halcyon Rd.
76
Comment
UCR188850
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2007-3-25
11705
Placer
Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 0.9 mile east of its junction with CA-49 at the bridge of the junction of American River forks
287
Comment
UCR230146
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17354
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
UCR235408
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2012-4-19
18800
Amador
Foothills, northern Sierra Nevada Mountains, Fiddletown Road, 0.2 mile east of its junction with County Road E-16, c. 0.7 mi. E of Hwy 49 at Plymouth
416
Comment
UCR238437
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2012-4-4
18671
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26, 0.6 mile northeast of its junction with Paloma Road, 4.5 km SW (213 deg. ) of Mokelumne Hill
489
Comment
UCR249939
Lupinus bicolor
George K. Helmkamp
2013-3-14
20181
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
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
UCR258240
Lupinus bicolor
George K. Helmkamp, Amy Barnes
2013-3-28
20239
Placer
Eastern Sacramento Valley, NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65
43
Comment
CLARK-A1045-1097
Lupinus breweri var. bryoides
George K. Helmkamp
1977-7-3
Mono
Sierra Nevada road to the Lake; ; Tioga Pass 7.5'Q
2895
Comment
CLARK-A1045-1228
Lupinus caudatus
George K. Helmkamp
1978-6-11
Mono
Long Valley 1.5 miles west of Benton Crossing; ; Whitmore Hot Springs 7.5'Q
2133
Comment
UCR97546
Lupinus excubitus
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1412
San Luis Obispo
c. 6 mi. west of Soda Lake Rd along Calif. Hwy 58
549
Comment
CLARK-A1045-1544
Lupinus excubitus subsp. hallii
George K. Helmkamp
1977-8-3
Ventura
Comment
RSA709022
Lupinus formosus var. formosus
George K. Helmkamp, E. A. Helmkamp
2005-5-12
9434
Monterey
Central Coast Ranges: 8 mi west of US-101 on Hwy CA-G-18 in Hames Valley.
341
Comment
UCD107801
Lupinus fulcratus
G. K. Helmkamp
2007-6-29
12459
Amador
Northern Sierra Nevada Mountains: South side of CA-88, 0.2 mile west of Carson Spur summit.
2421
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
UCR189009
Lupinus latifolius var. columbianus
George K. Helmkamp
2007-7-7
12460
El Dorado
Northern Sierra Nevada Mountains, along CA-89, 5.4 miles northwest of Luther Pass in the Grass Lake area
2018
Comment
CHSC100671
Lupinus latifolius var. latifolius
G. K. Helmkamp
2004-4-14
8446
Santa Barbara
Santa Inez Mountains: Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, ca. 5 miles SE of Lake Cachuma. On east-facing, open slope and roadside ditches.
548
Comment
SD167116
Lupinus latifolius var. latifolius
G. K. Helmkamp, E. A. Helmkamp
2005-3-9
9088
San Luis Obispo
Irish Hills; See Canyon, 1.0 mile north of San Luis Bay Drive.
42
Comment
UCD108397
Lupinus lepidus var. confertus
G. K. Helmkamp
2007-7-7
12465
El Dorado
Northern Sierra Nevada Mountains, along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area.
2338
Comment
UCR189008
Lupinus lepidus var. confertus
George K. Helmkamp
2007-7-7
12465
El Dorado
Northern Sierra Nevada Mountains, along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area
2338
Comment
UCR197014
Lupinus lepidus var. confertus
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13794
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR257797
Lupinus lepidus var. confertus
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19441
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
UCR27488
Lupinus lepidus var. confertus
George K. Helmkamp
1982-9-17
s.n.
Ventura
Transverse Range, flat area just below the radio towers, near the top of Mt. Pinos
2652
Comment
UCR176451
Lupinus lepidus var. sellulus
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11093
El Dorado
Northern Sierra Nevada Mountains, 0.3 mile west of the junction of Wrights Lake Road (Forest Route 4) and the road from Ice House Reservoir
2037
Comment
UCR189144
Lupinus lepidus var. sellulus
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12554
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road about nine miles south of its junction with CA-88
2511
Comment
UCR245555
Lupinus lepidus var. sellulus
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22248
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
SEINET7249127
Lupinus lepidus var. sellulus
George K. Helmkamp, Elizabeth Helmkamp
2013-1
Alpine
Comment
RSA667115
Lupinus meionanthus
George K. Helmkamp, E. A. Helmkamp
1997-9-10
2324
Mono
4.9 mi. SE of CA hwy 120 on Sagehen Meadows Rd.
2591
Comment
SEINET13276811
Lupinus microcarpus var. densiflorus
George K. Helmkamp, Mary Alice Barnes
2013-1
20646
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 (Mokelumne Hill 7.5' Q.)
437
Comment
SEINET2441062
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 (Esparato 7.5'.).
70
Comment
UCD108716
Lupinus microcarpus var. densiflorus
G. K. Helmkamp; E. A. Helmkamp
2007-4-5
11744
Amador
Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City.
309
Comment
UCR101065
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3254
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
UCR118380
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-7-1
4243
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road
244
Comment
UCR127118
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3813
Monterey
Central Coast Ranges, Salinas Valley Quinado Cyn., 12 mi south of King City along (G-14) Jolon Road
412
Comment
UCR157798
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4148
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
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
UCR130090
Lupinus microcarpus var. microcarpus
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5566
Monterey
Salinas Valley., 8.4 mi lS of King City along G-14.
381
Comment
CLARK-A1045-1378
Lupinus nanus
George K. Helmkamp
1978-4-23
San Luis Obispo
Morro Bay Turri Road at Morro Bay; Morro Bay S 7.5'Q
Comment
RSA0035677
Lupinus nanus
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20341
Placer
Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax
561
Comment
UCD109062
Lupinus nanus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-11
10382
Nevada
Northern Sierra Nevada Mountains. Cedarsong Road, 0.1 mile NE of CA-Hwy 49 (NW of Nevada City).
637
Comment
UCD109064
Lupinus nanus
G. K. Helmkamp; E. A. Helmkamp
2007-3-23
11694
El Dorado
Northern Sierra Nevada Mountains: hills bordering the east end of Sacramento Valley. Salmon Falls Road, 4.6 miles north of Green Valley Road, above NE arm of Folsom Lake.
384
Comment
UCR102504
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3264
Kern
Foothills of the Tehachapi Mtns., east of Arvin along Calif. Hwy 223
305
Comment
UCR195158
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12089
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 5.6 miles north of Nevada City
518
Comment
UCD109455
Lupinus polyphyllus var. burkei
G. K. Helmkamp
2007-7-7
12482
Alpine
Northern Sierra Nevada Mountains: along CA-89, 1.3 miles north of its junction with CA-88.
2262
Comment
UCR189897
Lupinus polyphyllus var. burkei
George K. Helmkamp, E. A. Helmkamp
2007-8-9
12723
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake; south side of the lake at the entrance to the campground
2131
Comment
UCR209556
Lupinus polyphyllus var. burkei
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15382
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
2637
Comment
UCD109382
Lupinus polyphyllus var. polyphyllus
G. K. Helmkamp; E. A. Helmkamp
2007-3-25
11708
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
CLARK-A1045-232
Lupinus sparsiflorus
George K. Helmkamp
1978-4-1
Riverside
Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q
Comment
UCR106066
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
1997-3-7
1380
Kern
San Emigdio Ranch, SE portion
945
Comment
UCR161341
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2005-3-8
9085
San Luis Obispo
Central Coast Hills., Irish Hills; crest of Prefumo Canyon Road, 5.2 mi west of Los Osos Valley Road
409
Comment
SEINET3815699
Lupinus truncatus
George K. Helmkamp, E. A. Helmkamp
2005-2-18
8930
Santa Barbara
Central Coast; Solomon Hills SE of Santa Maria along Dominion Road, 1.9 mi. SE of its junction with Clark Avenue
259
Comment
UCR132754
Luzula comosa
George K. Helmkamp
1977-7-4
s.n.
Mono
Owens Valley, Big Springs along the Owens River
2226
Comment
SEINET6178408
Luzula macrantha
George K. Helmkamp, E. A. Helmkamp
2010-5-14
16036
El Dorado
Sierra Nevada Mountains Foothills: Happy Valley Road, 1.1 mi. NE (69 degrees) of Somerset, just west of the bridge over the Cosumnes River.; 0
544
Comment
UCR143562
Luzula parviflora
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5840
Mono
Sierra Nevada Mtns., W side of Lake Mary, SW of Mammoth Lakes
2720
Comment
SD239678
Lychnis coronaria
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19200
Nevada
Northern Sierra Nevada Mountains Foothills: village of Washington, Relief Hill Road, 0.4 mile north of its junction with Mayb ert Road & NE of the bridge over the South Yuba River (Washington 7.5'Q)
790
Comment
UCR177013
Lychnis coronaria
George K. Helmkamp, E. A. Helmkamp
2005-9-23
9886
El Dorado
Northern Sierra Nevada Foothills, Silver Fork, 2.1 mi west of Kyburz along US Highway 50
1220
Comment
CLARK-A1045-144
Lycium andersonii
George K. Helmkamp
1978-4-1
Riverside
Deep Canyon Palm Desert 15'Q
Comment
UCR121566
Lythrum hyssopifolia
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4988
San Mateo
Pescadero Creek Watershed, Pescadero Road just north of Loma Mar
107
Comment
UCR157980
Lythrum hyssopifolia
George K. Helmkamp, E. A. Helmkamp
1998-6-30
4208
San Luis Obispo
South Coast Range, Alamo Creek Rd, 0.9 mile north of Calif. Hwy 166, near Twitchell Reservoir
320
Comment
UCR173994
Lythrum hyssopifolia
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10800
Calaveras
Northern Sierra Nevada foothills, along Calif. Hwy 26, 0.2 mile north of West Point
838
Comment
UCR206795
Lythrum hyssopifolia
George K. Helmkamp, E. A. Helmkamp
2009-5-24
14776
El Dorado
Sierra Nevada Mountains Foothills, Sand Ridge Road, 3.3 miles eat of the Cosumnes River and CA-49
521
Comment
UCR233016
Lythrum hyssopifolia
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17264
Sutter
Sacramento Valley, Pleasant Grove, along Howsley Road opposite Pl. Gr. Elementary School, 1.0 mile west of Pleasant Grove Road and just west of the Post Office
15
Comment
UCR257098
Lythrum hyssopifolia
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20625
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
UCR93701
Lythrum hyssopifolia
George K. Helmkamp
1996-5-25
1064
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
UCR202551
Machaeranthera canescens subsp. canescens
George K. Helmkamp, E. A. Helmkamp
2008-9-22
14162
Alpine
Northern Sierra Nevada Mountains, Hope Valley along Blue Lake Road, 0.1 mile south of the junction with CA-88
2180
Comment
UCR257155
Madia
George K. Helmkamp
2014-4-17
22741
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-120, 2.3 miles west of its junction with CA-49 in Grass Valley
729
Comment
UCR15459
Madia bolanderi
George K. Helmkamp
1977-9-1
s.n.
Alpine
Sierra Nevada Mtns., Road just east of Luther Pass
2317
Comment
SD262196
Madia citrigracilis
George K Helmkamp, Elizabeth Helmkamp
2013-8-2
22081 A
El Dorado
Northern Sierra Nevada Mountains: Mehrten Spring Road, 0.5 mile north of CA-88/Carson Pass Hwy (Peddler Hill 7.5'Q)
1793
Comment
UCR173733
Madia citrigracilis
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-14
10703
Placer
Northern Sierra Nevada Mountains foothills, 0.2 mile north of Forest Hill Road on Lake Clementine Rd., area northeast of Auburn on Forest Hill Divide
488
Comment
UCR233649
Madia citrigracilis
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17763
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 (95 deg. ) of Peardale
686
Comment
RSA750424
Madia citriodora
George K. Helmkamp, E. A. Helmkamp
2008-9-9
14075
El Dorado
junction of Bear Creek Road and Meadow Brook Road at Bear Creek; east of CA-193 and south of Georgetown
678
Comment
CAS-BOT-BC518739
Madia elegans subsp. densifolia
George K. Helmkamp; E. A. Helmkamp
2012-9-1
19739
Calaveras
Northern Sierra Nevada Mountain Foothills: along CA-26 (West Point-Pioneer Rd) on the S side of the North Fork Mokelumne River
584
Comment
UCR170362
Madia elegans subsp. elegans
George K. Helmkamp, Elizabeth Helmkamp
2005-9-9
9849
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento; Squaw Hollow area at junction of Hanks Exchange Road and Ranch Road, 0.9 mi south of Pleasant Valley Road
683
Comment
RSA0012033
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2011-8-6
18007
Amador
Ellis Road, 0.2 miles south of its junction with CA-88
2009
Comment
RSA794534
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17747
Nevada
Red Dog Road, 1.6 miles northeast of its junction with You Bet Road, 3 miles NE (313 deg,) of Gold Run
867
Comment
RSA794894
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17728
Calaveras
Winton Road (Forest Route 7N03), 12.6 miles east of its junction with CA-26 in West Point.
1503
Comment
SD148229
Madia glomerata
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
6944
Trinity
California Highway 36, 2.2 miles west of the Trinity/Shasta Co. line.
1159
Comment
JEPS119409
Madia gracilis
G. K. Helmkamp, E. A. Helmkamp
2009-8-6
15400
Amador
ierra 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
Comment
JEPS119411
Madia gracilis
G. K. Helmkamp, E. A. Helmkamp
2009-8-19
15488
El Dorado
Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 21.6 miles north of CA-50
Comment
JEPS119425
Madia gracilis
G. K. Helmkamp, E. A. Helmkamp
2011-7-2
17627
El Dorado
Northern Sierra Nevada Mountains Foothills, Forni Road at Weber Creek crossing, 1.3 miles south of its Placerville junction with US-50
Comment
JEPS119466
Madia gracilis
George K. Helmkamp with E. A. Helmkamp
2011-6-7
17461
Amador
Northern Sierra Nevada Mountains Foothills, Pine Gulch Road, 0.5 mile north of its intersection with Sutter Creek Road
Comment
SD248342
Madia gracilis
George K. Helmkamp, Elizabeth Helmkamp
2013-6-11
20804
Placer
Northern Sierra Nevada Mountains Foothills: Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road.
768
Comment
SEINET3285079
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14932
Shasta
Southern Cascade Range; along CA-44, 1.2 miles west of Shingletown.
936
Comment
UCR163901
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2005-3-30
9253
San Luis Obispo
Outer South Coast Ranges, La Panza Range; Pozo Road, 6.5 mi NE of Hi Mountain Road, [c. 1 mi (airline) SW of Pozo Summit]
665
Comment
UCR195159
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12090
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 5.6 miles north of Nevada City
518
Comment
UCR206057
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14977
Shasta
Southern Cascade Range, '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
UCR207876
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14701
El Dorado
Sierra Nevada Mountains Foothills, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
Comment
UCR209026
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15488
El Dorado
Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 21.6 miles north of CA-50
1716
Comment
UCR218218
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16416
Placer
Sierra Nevada Mountains Foothills, Canyon Way, 1.2 miles south of its junction with Yankee Jim's Road, 1.7 mi. NE (24 deg. ) of Applegate
668
Comment
UCR229538
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17855
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
UCR230989
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2011-7-2
17627
El Dorado
Northern Sierra Nevada Mountains Foothills, Forni Road at Weber Creek crossing, 1.3 miles south of its Placerville junction with US-50
473
Comment
UCR234642
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2011-6-2
17441
Nevada
Northern Sierra Nevada Mountains Foothills, Lake Wildwood, along Pleasant Valley Road, 1.2 miles north of its junction with CA-20
433
Comment
RSA714096
Madia gracilis subsp. gracilis
George K. Helmkamp, E. A. Helmkamp
2005-8-9
9775
El Dorado
Northern Sierra Nevada Foothills: WSW of Lake Tahoe; NE of Union Valley Reservoir along Ice House Road
1576
Comment
UCR121558
Madia madioides
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4977 B
San Mateo
Pescadero Creek Watershed, Pescadero Road just north of Loma Mar
107
Comment
UCR222554
Madia madioides
George K. Helmkamp, E. A. Helmkamp
2010-6-5
16244
Sonoma
North Coast Ranges, Vellutini Road, 1.3 miles northwest of its junction with Martinelli Road, 3.5 air mi. ESE (98 deg. ) of Guerneville
44
Comment
RSA0045140
Madia minima
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19325
El Dorado
Ice House Road, 0.2 mile north of Ice House community, 10.7 miles north of US-50.
1683
Comment
SEINET3246016
Madia minima
G. K. Helmkamp, Elizabeth Helmkamp, Amy Barnes
2007-1
12381
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
UCR173841
Madia minima
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10737
El Dorado
Northern Sierra Nevada Mountains, 5.5 miles east of Ice House Road on the road to Wright's Lake
1860
Comment
UCR175482B
Madia minima
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10694
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 0.2 mile north of its junction with Wentworth Springs Road
1620
Comment
UCR230638
Madia subspicata
George K. Helmkamp, E. A. Helmkamp
2011-5-26
17379
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
UCR159853
Malacothamnus jonesii
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9626
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
UCR218225
Malacothrix floccifera
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16412
Placer
Sierra Nevada Mountains Foothills, Yankee Jims road along Brush Creek in Bunch Canyon, 2.8 miles southeast of its junction with Canyon Way, 2.75 mi. ENE (74 deg. ) of Applegate
476
Comment
UCR121494
Malva nicaeensis
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4959
San Mateo
Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City
457
Comment
UCR207027
Malva nicaeensis
George K. Helmkamp, E. A. Helmkamp
2009-5-26
14803
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Diamond Springs
530
Comment
UCR205148
Malvella leprosa
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14254
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
UCR59842
Malvella leprosa
George K. Helmkamp
1989-9-16
s.n.
Riverside
Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78
79
Comment
UCD107633
Marah fabacea
G. K. Helmkamp; E. A. Helmkamp
2006-2-24
10067
Placer
Sacramento Valley; edge of Sierra Nevada Foothills: Junction of Clark Tunnel Road and CA Highway 193, E of Lincoln.
113
Comment
SD143890
Marina parryi
G. K. Helmkamp, E. Helmkamp
1998-1-24
2610
Imperial
Ogilby Road, 14.2 miles south of the junction with Highway California 78; vicinity of Tumco Wash.
182
Comment
UCR103662
Marina parryi
George K. Helmkamp, E. Helmkamp
1998-1-24
2610
Imperial
Sonoran (Colorado) Desert, Ogilby Rd, 14.2 mi. south of the junction with Calif. Hwy 78, vicinity of Tumco Wash
183
Comment
UCR92753
Marina parryi
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
UCR206379
Marrubium vulgare
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14757
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
UCR233036
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17260
Sutter
Southern Sacramento Valley, along Catlett Road immediately west of the Placer County line, 1.65 mi. NE (20 deg. ) of Pleasant Grove
15
Comment
UCR237573
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2012-3-3
18594
Sacramento
Sacramento Delta/Valley, Twin Cities Road (Co. Rd. E-13) at Sourgrass Slough, NE of Locke
14
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
UCR257604
Medicago polymorpha
George K. Helmkamp, Elizabeth Helmkamp
2014-2-20
22523
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
UCR235635
Medicago praecox
George K. Helmkamp, E. A. Helmkamp
2012-4-30
18877
El Dorado
Northern Sierra Nevada Mountains Foothills, Mosquito Road, 0.3 mile north of the bridge over the South Fork American River
427
Comment
UCR229422
Melica aristata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18081
Alpine
Northern Sierra Nevada Mountains, south side of Bear Valley Village, along CA Hwy 4
2169
Comment
CAS-BOT-BC174248
Melica torreyana
G. K. Helmkamp; E. A. Helmkamp
2008-4-30
13351
El Dorado
Sierra Nevada Mountains Foothills: junction of Meadow Brook and Bear Creek Roads at Traverse Creek, south of Georgetown
674
Comment
SEINET3817935
Melica torreyana
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18915
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
UCR253573
Melica torreyana
George K. Helmkamp, Amy Barnes
2014-4-23
22799
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
UCD108009
Melilotus albus
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13050
Sutter
Sacramento Valley. Sacramento Ave. on the east side of CA-99, junction 1.4 miles north of the Feather River.
21
Comment
UCR188498
Melilotus albus
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13019
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 2.3 miles east of Jenkinson Lake
1226
Comment
UCR258391
Melilotus officinalis
George K. Helmkamp, Amy Barnes
2014-8-27
23036
Alpine
Northern Sierra Nevada Mountains, Woodfords, at the junction of CA-88 and CA-89
1723
Comment
UCR179789
Mentha pulegium
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11478
Amador
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49, 1.1 miles south of Plymouth
314
Comment
UCR218998
Mentha spicata var. spicata
George K. Helmkamp, E. A. Helmkamp
2009-10-10
15675
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Patterson Dr. and CA-49 in Diamond Springs
520
Comment
UCR248422
Mentha spicata var. spicata
George K. Helmkamp, Elizabeth Helmkamp
2013-9-13
22291
Amador
Northern Sierra Nevada Mountains Foothills, Volcano Road; 0.1 mile northwest of the village of Volcano
671
Comment
UCR89995
Mentzelia
George K. Helmkamp
1995-3-28
s.n.
San Bernardino
Eastern Mojave Desert, Beside old US hwy 66, 11.5 mi east of Goffs
650
Comment
UCR103294
Mentzelia involucrata
George K. Helmkamp
1998-4-4
3179
Riverside
Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd.
274
Comment
UCR103624
Mentzelia involucrata
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2927
Imperial
Sonoran (Colorado) Desert, Imperial Dam area, just south of the dam on Hwy S-24.
76
Comment
UCR37719
Mentzelia involucrata
George K. Helmkamp
1984-4-29
A- 4
San Bernardino
Little San Bernardino Mtns., Big Morongo Canyon near the Riverside Co. line, 2 mi. below the Big Morongo Preserve headquarters
701
Comment
SD148124
Mentzelia montana
G. K. Helmkamp, E. A. Helmkamp
2001-7-6
6840
Alpine
Sierra Nevada Mountains; Ca 89, 7.1 miles west of U. S. 395.
2470
Comment
SEINET3094631
Mentzelia multiflora subsp. longiloba
George K. Helmkamp, E. A. Helmkamp
1998-3-18
2873
Imperial
Sonoran (Colorado) Desert; between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the junction of Hwy Calif Hwy 98 with I-8).
46
Comment
UCR123544
Mentzelia veatchiana
George K. Helmkamp, E. A. Helmkamp
2000-4-25
5607
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
UCR176368
Mertensia oblongifolia
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10745
El Dorado
Northern Sierra Nevada Mountains, 6.0 miles east of Ice House Road on the road to Wright's Lake
2000
Comment
UCR206576
Mertensia oblongifolia var. nevadensis
George K. Helmkamp, Ann Kerchner
2009-7-25
15282
Amador
Sierra Nevada Mountains, south side of CA-88, 3.2 miles west of the Alpine Co. line; near Martin Meadow
2306
Comment
SD224810
Mesembryanthemum nodiflorum
G. K. Helmkamp
1998-4-4
3097
San Bernardino
Mojave Desert: Dale Lake, 1.8mi W of Iron Age Rd & 0.7 mi. N of CA hwy 62
366
Comment
UCR104843
Mesembryanthemum nodiflorum
George K. Helmkamp
1998-4-4
3097
San Bernardino
West Mojave Desert, Dale Lake, 1.8 mi. west of Iron Age Rd & 0.7 mi. north of Calif. hwy 62
366
Comment
UCR122263
Micropus californicus
George K. Helmkamp, E. A. Helmkamp
2002-4-15
7355
Santa Barbara
Western Transverse Range, Sierra Madre Mountains, Miranda Pine Road, 1.0 mi southeast of CA Hwy 166
549
Comment
RSA709322
Micropus californicus var. californicus
George K. Helmkamp
2004-4-21
8499
Santa Barbara
San Rafael Mountains: Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn. Rd.
412
Comment
UCR230100
Micropus californicus var. californicus
George K. Helmkamp, E. A. Helmkamp
2011-5-19
17289
Amador
Lower Sierra Nevada Foothills, NW of Pardee Reservoir, 0.1 mile east of Rock Creek Road on a gravel spur leading to houses, 4.65 mi. SW (220 deg. ) of Jackson
280
Comment
UCR101018
Microseris lindleyi
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3222
San Luis Obispo
Elkhorn Grade Rd, 13.7 mi. NW of jct with Calif. Hwy 33, roughly WNW of Maricopa
579
Comment
UCR122408
Microseris lindleyi
George K. Helmkamp, E. A. Helmkamp
2002-4-24
7533
Madera
Western Sierra Nevada foothills, Auberry Rd (Rd 200/North Fork Rd.) 5.0 mi south of North Fork
503
Comment
RSA770726
Microseris nutans
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15088
El Dorado
Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR175640
Microseris nutans
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10816
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 3.2 miles north of Hwy US-50, northeast of Kyburz
1982
Comment
UCR207003
Microseris nutans
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15088
El Dorado
Sierra Nevada Mountains, Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR218109
Microseris nutans
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16488
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
UCR257083
Mimulus
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20599
Amador
Sierra Nevada Mountains, Shake Ridge Road, 16.7 miles northeast of its junction with E-16 via Fiddletown Rd.
983
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
SEINET1908460
Mimulus aurantiacus
G. K. Helmkamp, E. A. Helmkamp
2008-1
13612
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road. 0.5 mile north of its crossing of the South Fork American River.
668
Comment
UCR179327
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2006-10-10
11506
Nevada
Northern Sierra Nevada Mountains Foothills, along Calif. Hwy 49, 10.4 miles north of the crossing of the South Yuba River
543
Comment
UCR195166
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12098
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 6.9 miles north of Nevada City at the crossing of the South Yuba River
372
Comment
UCR233243
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
2011-7-9
17688
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road
503
Comment
UCR160286
Mimulus aurantiacus var. aurantiacus
George K. Helmkamp
2004-5-23
8584
Santa Barbara
Southern Central Coast, Lompoc-Casmalia Rd, 1.4 mi south of the junction to Casmalia
183
Comment
UCR236984
Mimulus bicolor
George K. Helmkamp, E. A. Helmkamp
2012-5-22
19055
El Dorado
Northern Sierra Nevada Mountains, Forest Service Road 31 (Peavine Ridge Road), 1.3 miles wet of its junction with Ice House Canyon Road
1582
Comment
UCR90222
Mimulus bigelovii
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
UCR13808
Mimulus bigelovii var. cuspidatus
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
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
UCR245563
Mimulus cardinalis
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22257
Alpine
Northern Sierra Nevada Mountains, along CA-89, 0.6 mile south of Markleeville
1691
Comment
UCR197241
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2008-4-25
13330
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
UCR257816
Mimulus guttatus
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19445
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
UCR230714
Mimulus jepsonii
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17828
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
UCR103541
Mimulus mephiticus
George K. Helmkamp, E. A. Helmkamp
1997-9-12
2405
Mono
Along Calif. Hwy 120, 7.5 mi east of US Hwy 395
2125
Comment
UCR253109
Mimulus mephiticus
George K. Helmkamp, Elizabeth Helmkamp
2013-7-31
22057
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
1537
Comment
RSA725803
Mimulus moschatus
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11233
Nevada
Northern Sierra Nevada Mtns.: just south of I-80 on Lake Valley Rd
535
Comment
SEINET4691385
Mimulus moschatus
George K. Helmkamp, E. A. Helmkamp
2010-1
16812
El Dorado
Northern Sierra Nevada Mountains: Foster Meadow Road 0.6 mile west of Mormon Emigrant Trail in the Leek Spring area.
2232
Comment
UCD122813
Mimulus moschatus
G. K. Helmkamp; E. A. Helmkamp
2007-7-27
12605
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20.
1793
Comment
UCR206766
Mimulus moschatus
George K. Helmkamp, Amy Barnes
2009-7-7
15119
El Dorado
Sierra Nevada Mountains, Wrights Lake Road, 0.4 mile east of its junction with Ice House Road, c. 1.3 miles north of Ice House Store
1660
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
CLARK-A1045-1156
Mimulus nasutus
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCD122674
Mimulus nasutus
G. K. Helmkamp; E. A. Helmkamp
2007-9-14
12954
Placer
Northern Sierra Nevada Mountains. Along Mosquito Ridge Road, 0.4 mile east of Foresthill.
942
Comment
UCR87686
Mimulus pilosus
George K. Helmkamp, E. A. Helmkamp
1995-6-21
95-1-
Mariposa
Sierra Nevada Mtns., above Merced River arm of Lake McClure along Calif. Hwy 40, 0.75 mi north of the crossing at Hell Hollow
381
Comment
UCR197321
Mimulus primuloides var. primuloides
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13772
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
UCR215784
Mimulus tilingii
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15349
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
RSA0012159
Mimulus viscidus
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17667
El Dorado
Capps Crossing Road, 5.2 miles south of its junction with Mormon Emigrant Trail
1409
Comment
UCR233190B
Mimulus viscidus
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17667
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing Road, 5.2 miles south of its junction with Mormon Emigrant Trail
1409
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
UCR102915
Mohavea confertiflora
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2659
Riverside
Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd.
101
Comment
UCR171539
Monardella breweri subsp. lanceolata
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9724
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
UCR233199
Monardella breweri subsp. lanceolata
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17758
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 (95 deg. ) of Peardale
686
Comment
RSA794590
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16833
Nevada
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
SD243166
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18168
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 26.1 miles east of its junction with Mesquite Road in the city of Foresthill.
2020
Comment
UCR129540
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6830
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
UCR176069
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11244
Nevada
Northern Sierra Nevada Mtns, about 0.7 mile east of Donner Pass along Donner Pass Road
2041
Comment
UCR206786
Monardella odoratissima subsp. pallida
George K. Helmkamp, Ann Kerchner
2009-7-25
15302
Alpine
Sierra Nevada Mountains, Blue Lakes Road, 8.5 miles south of its junction with CA-88
2491
Comment
UCR233424
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18259
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road, 0.6 miles north of its junction with CA-88
2136
Comment
SD254645
Monardella sheltonii
George K Helmkamp, Mary Alice Barnes
2013-5-17
20634
Calaveras
Northern Sierra Nevada Mountains Foothills: Poloma Road at its junction with Cosgrove Creek Road, 3 miles NE (30a^z) of Valley Springs (Valley Springs 7.5'Q)
278
Comment
UCR206759
Monardella sheltonii
George K. Helmkamp, E. A. Helmkamp
2009-6-25
15051
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road, 1.5 miles north of the crossing of the South Fork American River, c. 9 miles north of Pollock Pines
857
Comment
SEINET892710
Monardella villosa var. franciscana
G. K. Helmkamp, E. A. Helmkamp
1999-1
4991
San Mateo
Pescadero Crk. Watershed: Bean Hollow Rd. 0.3 miles S of Pescadero Rd. (SW of Pescadero). Slopes abov Butano Crk. (Pigeon Pt.)
60
Comment
UCR51570
Monolepis nuttalliana
George K. Helmkamp
1987-6-17
s.n.
Mono
Eastern Sierra Nevada Mtns., Campground at canyon, W base of Glass Mountain, 5 miles east of Owens River
2256
Comment
UCR97548
Monolopia lanceolata
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1415
San Luis Obispo
c. 6 mi. west of Soda Lake Rd along Calif. Hwy 58
549
Comment
SD234498
Montia parvifolia
G. K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10556
El Dorado
Northern Sierra Nevada foothills: Along Hwy US - 50 at Bridal Veil Falls, east of Pacific House.
1002
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
RSA0011987
Muhlenbergia filiformis
George K. Helmkamp, E. A. Helmkamp
2011-8-6
18008
Amador
Ellis Road, 0.2 miles south of its junction with CA-88
2009
Comment
UCR176430
Muhlenbergia filiformis
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11072
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
UCR197021
Muhlenbergia filiformis
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13828
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR257775
Muhlenbergia filiformis
George K. Helmkamp, Amy Barnes
2012-8-19
19681
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
CLARK-A1045-175
Muilla maritima
George K. Helmkamp
1979-5-5
Riverside
Santa Ana Mountains vernal pool; Wildomar 7.5' Q
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
UCR197834
Myosotis laxa
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13761
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
UCR219274
Myosotis laxa
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16541
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2492
Comment
UCR87688
Myosotis scorpioides
George K. Helmkamp, E. A. Helmkamp
1995-6-23
95 7 1
Alpine
Sierra Nevada Mtns, Bear Valley along Calif. Hwy 4
2134
Comment
UCR14522
Nama aretioides
George K. Helmkamp
1974-5-4
s.n.
Inyo
Owens Valley, Pleasant Valley along the Owens River, 9 mi NW of Bishop
1311
Comment
UCR189506
Navarretia breweri
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12706
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road 0.1 mile south of its junction with CA-88
2500
Comment
UCR188862
Navarretia divaricata subsp. divaricata
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12611
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20
1793
Comment
UCR233422
Navarretia divaricata subsp. divaricata
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18258
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road, 0.6 miles north of its junction with CA-88
2136
Comment
UCR160571
Navarretia hamata
George K. Helmkamp, E. A. Helmkamp
2005-6-7
9552
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
UCR87682
Navarretia hamata
George K. Helmkamp, E. A. Helmkamp
1995-6-20
95- 02 -
San Luis Obispo
Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road
400
Comment
UCR229565
Navarretia leucocephala subsp. minima
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17877
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
UCR229431
Navarretia squarrosa
George K. Helmkamp, E. A. Helmkamp
2011-8-11
18023
El Dorado
Northern Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Diamond Springs
524
Comment
CLARK-A1045-267
Nemacladus glanduliferus
George K. Helmkamp
1978-3-24
San Bernardino
Cady Mountains Afton; rocky flat above Canyon; Cave Mt. 15'Q
Comment
SBBG129331
Nemophila heterophylla
G. K. Helmkamp, E. A. Helmkamp
2013-5-24
20680
Calaveras
Whiskey Slide Rd, just E of W Murray Crk Rd, ca. 4.7 mi SE of Jesus Maria Rd
677
Comment
UCD120006
Nemophila heterophylla
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-18
10467
El Dorado
Northern Sierra Nevada: S side of Peavine Ridge; along Meadow Canyon Road, 3.4 mi. W. of its junction with Ice House Canyon Road (N of US Hwy 50 and SSE of Union Valley Reservoir).
1189
Comment
UCD120017
Nemophila heterophylla
G. K. Helmkamp; E. A. Helmkamp
2007-3-22
11665
El Dorado
Northern Sierra Nevada Mountains: Bucks Bar Road, 4.4 miles south of Pleasant Valley Road at the junctions of Sand Ridge road.
628
Comment
UCR188822
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2007-3-23
11703
El Dorado
Foothills, Northern Sierra Nevada Mountains, Rattlesnake Bar Road, 1.4 miles west of CA-49 at Pilot Hill
313
Comment
SEINET3860283
Nemophila maculata
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16587
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.; 0
2127
Comment
UCR122635
Nemophila maculata
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7508
Madera
Western Sierra Nevada foothills, Bass Lake Road, 2.2 miles southeast of the junction with CA Hwy 41
976
Comment
UCR217397
Nemophila maculata
George K. Helmkamp, Mary Jane Ganive, Mary Alice Barnes
2010-6-15
16297
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, just south of Iron Mountain, c. 15 miles southeast of Sly Park Road at Jenkinson Lake
1854
Comment
UCD120252
Nemophila menziesii var. menziesii
G. K. Helmkamp; E. A. Helmkamp
2007-4-23
11791
Amador
Northern Sierra Nevada Mountains: along Bell Road beside Plymouth Creek just east of CA-49 in the vicinity of Enterprise.
302
Comment
UCR106674
Nemophila pulchella var. fremontii
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3762
Santa Clara
Central Coast Range, Mt.Hamilton Rd (Calif. Hwy 130) east of San Jose; 15.2 mi from the W origin of the Hwy
610
Comment
UCR224861
Nemophila pulchella var. fremontii
George K. Helmkamp, E. A. Helmkamp
2010-4-23
15911
Placer
Sierra Nevada Mountains Foothills, along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill
287
Comment
UCR200923
Nepeta cataria
George K. Helmkamp, E. A. Helmkamp
2008-9-9
14090
El Dorado
Foothills, northern Sierra Nevada Mountains, Traverse Creek Road at the creek crossing, 1.6 miles east of CA-193
628
Comment
UCD126685
Nicotiana acuminata var. multiflora
G. K. Helmkamp; E. A. Helmkamp
2007-9-19
12983
El Dorado
Northern Sierra Nevada Mountains: junction of Lost Creek and French Creek Road just north of Frenchtown.
366
Comment
UCR232679
Nicotiana acuminata var. multiflora
George K. Helmkamp, E. A. Helmkamp
2011-10-15
18428
San Joaquin
San Joaquin Valley, along CA-26, 0.6 mile northeast of Escalon-Bellota Rd.
40
Comment
UCD126712
Nicotiana quadrivalvis
G. K. Helmkamp; E. A. Helmkamp
2007-8-19
12777
El Dorado
Northern Sierra Nevada Mountains: Lake Oaks Mobile Home Park, Diamond Springs.
521
Comment
UCR80827
Nitrophila occidentalis
George K. Helmkamp
1993-6-16
1- 22
Inyo
Owens Valley, 2 mi south of Pleasant Valley campground beside the Owens River
1280
Comment
UCR231857
Notholithocarpus densiflorus var. echinoides
George K. Helmkamp, E. A. Helmkamp
2010-8-11
16762
Placer
Northern Sierra Nevada Mountains, Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek
1082
Comment
UCR130381
Oenothera californica
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4028
Kern
Western Mojave Desert, South base, Tehachapi Mtns., 4.0 mi north of Calif. Hwy 138 (Lancaster Rd) on 300th St. West
1006
Comment
UCR101125
Oenothera deltoides
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2758
San Bernardino
Mojave Desert, East Cronese Dry Lake. 0.2 mi south of I-15 on Basin Rd.
332
Comment
UCR103650
Oenothera deltoides
George K. Helmkamp, E. A. Helmkamp
1998-1-28
2626
Imperial
Sonoran (Colorado) Desert, West Mesa. Jeep trail south of Calif. Hwy 98 along the Mexican border, 2.2 mi. west of Mt. Signal Road.
67
Comment
UCR50963
Oenothera deltoides
George K. Helmkamp
1988-2-28
s.n.
Imperial
Sonoran (Colorado) Desert, just N of Signal Mtn., south of Hwy 98
31
Comment
UCR100854
Oenothera deltoides var. deltoides
George K. Helmkamp, E. A. Helmkamp
1998-3-18
2874
Imperial
Sonoran (Colorado) Desert, between Hwy I-8 & the All-American Canal across from the Brock Research Center (c. 3 mi. east of the junction of Hwy Calif Hwy 98 with I-8)
46
Comment
SEINET1908786
Onagraceae
G. K. Helmkamp, Elizabeth Helmkamp
2005-1
9456
Monterey
Central coast ranges: WNW of Lockwood along Hwy G-14; mile-28 on the road (Jolon 7.5')
329
Comment
SEINET1004422
Orobanchaceae
George K. Helmkamp
2004-1
8284
San Luis Obispo
Central Coast: Nipomo Mesa, Willow Rd., 0.6 mi E of Hwy CA-1.
125
Comment
UCR157783
Osmorhiza brachypoda
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4162
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
Comment
UCR240888
Osmorhiza chilensis
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19119
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 1.1 miles west of Cooks Station
1439
Comment
UCR258380
Osmorhiza chilensis
George K. Helmkamp
2014-5-28
22930
Calaveras
Northern Sierra Nevada Mountains, along Winton Road along the north side of Wilson Lake
1128
Comment
UCR190482
Osmorhiza occidentalis
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12691
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
SD178207
Oxalis corniculata
G. K. Helmkamp
2004-3-21
8389
San Luis Obispo
Central Coast: Mesa Dunes Mobile Home Park along mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., southeast of Oceano. Growing up through garden shrubs.
60
Comment
UCR235501
Oxalis laxa
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18990
Calaveras
Northern Sierra Nevada Mountains Foothills, at a crossing of Murray Creek along Murray Creek Road; 1.8 miles east of Pope Road in San Andreas
351
Comment
CLARK-A1045-71
Oxytheca emarginata
George K. Helmkamp
1978-5-20
Riverside
San Jacinto Mountains dry slope just northwest of Kensworthy Forest Station; ; Idyllwild 15' Q
Comment
RSA489399
Palafoxia arida var. arida
George K. Helmkamp
1988-2-28
s.n.
Imperial
Sandy flat just N of Signal Mtn., S of Hwy 98. [Mount Signal 10 km cell; PG-1N, 2E
31
Comment
UCR118320
Palafoxia arida var. arida
George K. Helmkamp, E. A. Helmkamp
1998-4-18
3335
San Bernardino
Mojave Desert, Basin Road, 2.7 miles south of I-15 (west of Baker).
396
Comment
UC4506467
Panicum antidotale
G. K. Helmkamp, O. F. Clarke and J. Derby
1973-10-16
San Bernardino
along Amargosa River (China Ranch, near the Inyo County line); , China RAnch
304
Comment
RSA328956
Panicum antidotale
George K. Helmkamp, Oscar F. Clarke, J. Derby
1973-10-16
s.n.
San Bernardino
China Ranch along the Amargosa River near the Inyo Co. line
305
Comment
SD254508
Panicum capillare
George K. Helmkamp, Elizabeth Helmkamp
2013-10-15
22430
El Dorado
Sierra Nevada Mountains Foothills; Oak Hill Road, 2.9 miles south of its junction with Pleasant Valley Road, ca. 5.0 miles SSE of Placerville.
616
Comment
UCR219196
Panicum capillare
George K. Helmkamp, E. A. Helmkamp
2009-9-22
15647
Amador
Sierra Nevada Mountains Foothills, junction of Shenandoah Road (CA-16) and Steiner Road, southwest of River Pines
750
Comment
CAS-BOT-BC422843
Papaver rhoeas
G. K. Helmkamp; E. A. Helmkamp
2008-5-4
13400
Amador
Sierra Nevada Mountains Foothills: along CA-49, 0.1 mile north of Drytown.
200
Comment
SD260212
Parvisedum pumilum
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20409
Calaveras
Northern Sierra Nevada Mountains Foothills: Winton Road, 1.9 milse east of its juncton with CA-26 in West Point (West Point 7.5'Q)
651
Comment
UCR238417
Parvisedum pumilum
George K. Helmkamp, E. A. Helmkamp
2012-4-4
18705
Calaveras
Northern San Joaquin Valley, along CA-26, 0.1 mile west of its junction with Milton Road, between Linden & Valley Springs
67
Comment
UCR241347
Paspalum dilatatum
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19873
Calaveras
Northern Sierra Nevada Mountains Foothills, along Hwy CA-26, 6.2 miles NE of its junction with CA-49 at Mokelumne Hill
550
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
UCR64000
Pectocarya anisocarpa
George K. Helmkamp
1984-5-2
D- 29
Riverside
Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve
610
Comment
UCR122953
Pectocarya heterocarpa
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6452
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
UCR130637
Pectocarya penicillata
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4644
San Diego
Between Lake Henshaw & Matagual Valley, Barrett Hill Rd off of Hwy-79, c. 6.5 mi SW of Warner Hot Springs
838
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
CLARK-A1045-732
Pectocarya setosa
George K. Helmkamp
1978-5-1
San Bernardino
Mojave Desert at camp road, north of Ord Mountain; Ord Mts 15'Q
Comment
CLARK-A1045-758
Pectocarya setosa
George K. Helmkamp
1977-5-29
San Bernardino
Mojave Desert at north edge of Ivanpah Mountains; ; Mescal Range 15'Q
1432
Comment
SEINET269524
Pellaea andromedifolia
G. Helmkamp
1994-5-18
91 -12
San Luis Obispo
Alamo Canyon 7 miles east of US 101 on CA 166 then 4 miles north (generally northeast of Twitchell reservoir)
213
Comment
SEINET1908675
Pellaea mucronata
G. K. Helmkamp, E. A. Helmkamp
2008-1
13609
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road 0.5 milw north of its crossing of the South Fork American River (Slate Mountain 7.5')
668
Comment
UCR163898
Pellaea mucronata subsp. mucronata
George K. Helmkamp, E. A. Helmkamp
2005-3-30
9256
San Luis Obispo
Outer South Coast Ranges, La Panza Range; Pozo Road, 6.5 mi NE of Hi Mountain Road, [c. 1 mi (airline) SW of Pozo Summit]
665
Comment
UCR230625
Pellaea mucronata subsp. mucronata
George K. Helmkamp, E. A. Helmkamp
2011-5-10
17238
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
UCR107900
Pennisetum villosum
George K. Helmkamp, E. A. Helmkamp
1996-12-22
1274
San Luis Obispo
Central Coast, near Martingale Avenue and Buckskin Drive at the east end of Los Osos
61
Comment
RSA0093629
Penstemon azureus subsp. angustissimus
George K. Helmkamp, E. A. Helmkamp
2012-6-19
19208
Placer
Northern Sierra Nevada Mountains Foothills. Mosquito Ridge Road, 2.7 miles south of its junction with Foresthill Road.
820
Comment
UCR233383
Penstemon azureus var. azureus
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18301
Amador
Northern Sierra Nevada Mountains Foothills, along CA-26 (Red Corral Rd.), 2.2 miles north of the crossing over North Fork Mokelumne River, 1 mile SSE (159 deg. ) of Pioneer
762
Comment
UCR160734
Penstemon centranthifolius
George K. Helmkamp, E. A. Helmkamp
2005-6-7
9557
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
UCR257648
Penstemon deustus var. deustus
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19492
Nevada
Northern Sierra Nevada Mountains, Stampede Meadows Road, c. 0.65 mile south of the Sierra County line
1738
Comment
UCR129980
Penstemon heterophyllus subsp. australis
George K. Helmkamp, E. A. Helmkamp
2001-5-31
6756
Santa Clara
San Francisco Bay, 2.0 mi east of Lick Observatory on Mt. Hamilton Rd.
1076
Comment
RSA794532
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17754
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 (95 deg.) of Peardale
686
Comment
SD241191
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17721
Calaveras
Northern Sierra Nevada Mountains Foothills: Winton Road (Forest Route 7N03), 12.6 miles east of its junction with CA-26 in West Point (Garnet Hill 7.5'Q)
1502
Comment
UCR258360
Penstemon laetus subsp. laetus
George K. Helmkamp
2014-5-28
22928
Calaveras
Northern Sierra Nevada Mountains, along Winton Road along the north side of Wilson Lake
1128
Comment
SD237626
Penstemon laetus subsp. leptosepalus
G. K. Helmkamp, Amy Barnes
2009-7-12
15181
Placer
Sierra Nevada Mountains Foothills: along Foresthill Road 10.3 miles northeast of the town of Foresthill (Michigan Bluff 7.5'Q).
1370
Comment
SD243212
Penstemon neotericus
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18190
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
UCR233462
Penstemon neotericus
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18190
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
UCD124323
Penstemon newberryi var. newberryi
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-10
10693
El Dorado
Northern Sierra Nevada Mountains: Ice House Road, 0.2 mile north of its junction with Wentworth Springs Road.
1620
Comment
CAS-BOT-BC438802
Penstemon roezlii
George K. Helmkamp; Elizabeth Helmkamp
2013-7-31
22053
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.
1537
Comment
SEINET2441587
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 (Slate Mountain 7.5' Q.).; 0
945
Comment
OBI82261
Penstemon roezlii
George K Helmkampf
2013-6-19
20903
El Dorado
Northern Sierra Mountains: Mormon Emigrant Trail at the junction with Milliken Road (Leek Spring Hill) ; rocky bank
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
SD241193
Penstemon rydbergii var. oreocharis
George K. Helmkamp, E. A. Helmkamp
2011-8-13
18065
Alpine
Northern Sierra Nevada Mountains: south side of Bear Valley Village, along CA Hwy 4 (Tamarack 7.5'Q)
2168
Comment
SD247510
Penstemon rydbergii var. oreocharis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-7-10
21020
Amador
Northern Sierra Nevada Mountains: Plasse Road at the southern end of Silver Lake off CA-88/Carson Pass Hwy (Tragedy Spring 7.5'Q)
2191
Comment
SEINET3860454
Penstemon rydbergii var. oreocharis
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16610
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 of Kyburz.; 0
2114
Comment
UCR189142
Penstemon rydbergii var. oreocharis
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12552
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road about nine miles south of its junction with CA-88
2511
Comment
UCR201753
Penstemon speciosus
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13980
Alpine
Northern Sierra Nevada Mountains, along CA-89 at Grass Lake, 0.9 mile west of Luther Pass
2354
Comment
UCR153898
Penstemon thurberi
George K. Helmkamp
1977-5-30
s.n.
San Bernardino
Eastern Mojave Desert., south base of the Kelso Sand Dunes
671
Comment
UCR233114B
Pentagramma pallida
George K. Helmkamp, E. A. Helmkamp
2010-3-20
15750
El Dorado
Sierra Nevada Mountains Foothills, Marshall Road, 0.1 mile NE of its junction with CA-49
226
Comment
UCR246407
Pentagramma triangularis
George K. Helmkamp, E. A. Helmkamp
2012-3-22
18633
Amador
Northern Sierra Nevada Mountains Foothills, Bell Road, 1.2 miles east of CA-49 at private road to Rancho Cicada Retreat
371
Comment
UCD137790
Pentagramma triangularis subsp. triangularis
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11848
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
UCR107356
Pentagramma triangularis subsp. triangularis
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3690
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
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
CLARK-A1045-1179
Perideridia parishii
George K. Helmkamp
1977-9-1
VA
Alpine
Sierra Nevada meadow at edge of sphagnum bog; ; Freel Peak 7.5'Q
2346
Comment
UCR14528
Perideridia parishii
George K. Helmkamp
1974-7-27
s.n.
Mono
Owens Valley, Owens River, Big Springs
2195
Comment
CAS-BOT-BC257793
Perideridia parishii subsp. latifolia
George K. Helmkamp; E. A. Helmkamp
2010-9-1
16894
El Dorado
Northern Sierra Nevada Mountains: Mehrten Springs Road, 0.6 mile north of its junction with CA-88
2018
Comment
UCR103327
Perityle emoryi
George K. Helmkamp
1998-3-30
3041
San Bernardino
Mojave Desert, vicinity of Twentynine Palms; Encelia Ave., 1.0 mi. north of Calif. Hwy 62
793
Comment
CAS-BOT-BC227840
Persicaria punctata
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
CLARK-A1045-877
Petalonyx linearis
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon UCR Boyd Deep Canyon Reserve; sandy bottom of dry wash; ; ; Palm Desert 15'Q
304
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
UCR250606
Petrorhagia dubia
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20381
Amador
Northern Sierra Nevada Mountains Foothills, Along CA-26 (Red Corral/West Point-Pioneer Rd.), 2.8 miles southeast of its junction with CA-88
905
Comment
SEINET244289
Phacelia californica
G. K. Helmkamp, E. A. Helmkamp
2001-5-30
6737
Santa Clara
Santa Clara Valley; Gilroy Hot Springs Rd., 0.5 mi S of springs at Coyote Crk.
183
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-A1045-737
Phacelia campanularia subsp. vasiformis
George K. Helmkamp
1978-5-1
San Bernardino
Mojave Desert Ord Saddle; Ord Mts 15'Q
Comment
UCR102969
Phacelia campanularia subsp. vasiformis
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2825
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-A1045-183
Phacelia cicutaria subsp. hispida
George K. Helmkamp
1979-5-5
Riverside
Santa Ana Mountains vernal pool; Wildomar 7.5'Q
Comment
UC2015602
Phacelia corymbosa
G. Helmkamp
1995-9-23
3 -9
Alpine
West side of Sonora Pass just beyond the Mono County line
Comment
SEINET3091710
Phacelia crenulata var. ambigua
G. Helmkamp, E. Helmkamp
1998-1-17
2541
Riverside
Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal.
0
Comment
UCR120532
Phacelia crenulata var. crenulata
George K. Helmkamp, E. A. Helmkamp
2001-3-17
6296
Imperial
Sonoran (Colorado) Desert, Ogilby Rd., 15.4 miles south of Calif. Hwy 78
168
Comment
SD148136
Phacelia distans
G. K. Helmkamp, E. A. Helmkamp
2001-5-2
6604
San Luis Obispo
La Panza Range: CA-58, 4.5 miles east of Santa Margarita.
334
Comment
SD185241
Phacelia distans
G. K. Helmkamp
1998-4-4
3129
Riverside
Junction of CA 62 and CA 177.
456
Comment
UCR103793
Phacelia distans
George K. Helmkamp
1997-3-11
1466
Santa Barbara
32 mi. west of New Cuyama along Calif. Hwy 166
399
Comment
UCR190648
Phacelia distans
George K. Helmkamp, E. A. Helmkamp
2005-3-25
9197
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness; Hi Mountain Road, 6.7 miles ENE of Lopez Lake near Salt Creek
399
Comment
UCR90228
Phacelia distans
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
UCR202903
Phacelia douglasii
George K. Helmkamp, E. A. Helmkamp
2000-3-15
5334
San Luis Obispo
Central Coast, south end of Morro Bay at the west end of Howard St in Los Osos
6
Comment
UCR130257
Phacelia fremontii
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6512
Kern
Tehachapi Mtns, Hart Flat turnoff from Calif. Hwy 58
884
Comment
SD239787
Phacelia hastata var. compacta
George K. Helmkamp, Ann Kerchner, Amy Barnes.
2011-8-13
18051
Calaveras
Northern Sierra Nevada Mountains: Black Springs Road (Forest Route 6N45?), 1.7 miles north of its junction with CA Hwy 4 (Calaveras Dome 7.5'Q)
2058
Comment
SEINET4691403
Phacelia hastata var. compacta
George K. Helmkamp, E. A. Helmkamp
2010-1
16715
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
UCR176393
Phacelia hastata var. hastata
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11174
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road
2250
Comment
UCR230639
Phacelia hastata var. hastata
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17853
Calaveras
Northern Sierra Nevada Mountains Foothills, CA Hwy 4, 4.2 miles northeast of Arnold
1221
Comment
UCR248482
Phacelia hastata var. hastata
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
22014
El Dorado
Northern Sierra Nevada Mountains, dirt track on the south side of Mormon Emigrant Trail, about 0.1 mi. east of Silver Fork Road
2186
Comment
UCR233132B
Phacelia hydrophylloides
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17993
Amador
Northern Sierra Nevada Mountains, Ellis Road, 0.2 miles south of its junction with CA-88
2009
Comment
RSA0039073
Phacelia imbricata subsp. imbricata
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20369
Placer
Iowa Hill Road, 1.8 miles west of the bridge over North Fork American River, 0.6 mi. (airline) east of I-80 at Colfax
544
Comment
SEINET2441256
Phacelia imbricata subsp. imbricata
George K. Helmkamp, E. A. Helmkamp
2010-5-14
16022
El Dorado
Sierra Nevada Mountains Foothills: along CA-16 (Mt. Aukum Rd.), 1.8 miles northeast of Somerset. (Camino 7.5' Q.).
567
Comment
UCD120621
Phacelia imbricata subsp. imbricata
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-5-31
10591
El Dorado
Northern Sierra Nevada: along Hwy US-50, 0.6 mile east of White Hall.
1055
Comment
UCR250361
Phacelia imbricata subsp. imbricata
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20369
Placer
Northern Sierra Nevada Mtns Foothills, Iowa Hill Road, 1.8 miles west of the bridge over North Fork American River, 0.6 mi. (airline) east of I-80 at Colfax
544
Comment
CAS-BOT-BC228557
Phacelia mutabilis
George K. Helmkamp; E. A. Helmkamp
2011-7-19
17805
Tuolumne
Northern Sierra Nevada Mountains Foothills: Forest Route 5N14, 1.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1143
Comment
SD243162
Phacelia mutabilis
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16806
El Dorado
Northern Sierra Nevada Mountains: Foster Meadow Road 0.6 mile west of Mormon Emigrant Trail in the Leek Spring Area. Roadside bank.
2232
Comment
UCR233398
Phacelia mutabilis
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18175
Placer
Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road
2061
Comment
CLARK-A1045-872
Phacelia pachyphylla
George K. Helmkamp
1978-6-1
#3
Riverside
Santa Ana Mountains Wildomar 7.5'Q
Comment
UCR233399
Phacelia racemosa
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18174
Placer
Northern Sierra Nevada Mountains, Robinson Flat, 0.1 mile south of the campground at Forest Hill Road
2061
Comment
IRVC29051
Phacelia ramosissima var. montereyensis
G. K. Helmkamp
2003-10-8
8193
San Luis Obispo
base of Nipomo Mesa 0.25 mi SW of Halcyon Rd along an unnamed road near the railroad crossing Central Coast
15
Comment
UCR160146
Phacelia ramosissima var. ramosissima
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9573
San Luis Obispo
South Coast Ranges, Arroyo Grande to Huasna Road along Arroyo Seco Creek, 7.8 miles northeast of Huasna Townsite Road
338
Comment
SD148132
Phacelia tanacetifolia
G. K. Helmkamp, E. A. Helmkamp
2001-5-2
6654
Kern
Temblor Range: CA-58, very near the San Luis Obispo County line.
427
Comment
SD227705
Phalaris aquatica
G. K. Helmkamp, E. A. Helmkamp
1998-5-16
3743
San Mateo
Portola Valley: Golden Hills Rd along Los Trancos Creek
106
Comment
SD254512
Phalaris paradoxa
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20227
San Joaquin
East end of San Joaquin Valley: Escalon Bellota Road (J6), 6.1 miles south of its juction with CA-26, 0.52 mile south of Copperopolis Rd.
52
Comment
SD148074
Philadelphus lewisii
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
6941
Trinity
Trinity Mountains: CA-36, 2.2 mi W of the Trinity/Shasta Co. line.
1159
Comment
UCR206713
Philadelphus lewisii
George K. Helmkamp, Amy Barnes
2009-7-7
15110
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road, at the south side of its crossing of the South Fork American River, about 7 miles north of Pollock Pines
595
Comment
UCR206758
Philadelphus lewisii
George K. Helmkamp, E. A. Helmkamp
2009-6-25
15052
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road, 1.5 miles north of the crossing of the South Fork American River, c. 9 miles north of Pollock Pines
857
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
UCR129517
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
1998-5-20
4017
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
UCR166280
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
1995-6-22
95-4- 19
Calaveras
Sierra Nevada Mtns, along Calif. Hwy 4, 2.5 mi NE of Arnold
1479
Comment
IRVC28176
Pholistoma auritum var. auritum
G. K. Helmkamp, E. A. Helmkamp
2000-4-24
5495
Monterey
Nacimiento Rd. 12 mi N of Gorda and 3.8 mi E of CA-1. Central outer coast ranges.
549
Comment
UCR161290
Pholistoma auritum var. auritum
George K. Helmkamp, E. A. Helmkamp
2005-3-9
9089
San Luis Obispo
Outer Central Coast Hills, Irish Hills; See Canyon, 1.0 mi N of San Luis Bay Drive
43
Comment
UCR101019
Pholistoma membranaceum
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3221
San Luis Obispo
Elkhorn Grade Rd, 13.7 mi. NW of jct with Calif. Hwy 33, roughly WNW of Maricopa
579
Comment
HSC79285
Phoradendron californicum
G. K. Helmkamp
1984-5-2
- 11
Riverside
Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns.
550
Comment
VVC513
Phoradendron macrophyllum
G. K. Helmkamp
1995-11-4
s.n.
San Bernardino
Little San Bernardino Mountains, Big Morongo Preserve in Big Morongo Canyon, S of town of Morongo Valley.
780
Comment
UCR219646
Phyllodoce breweri
George K. Helmkamp, Amy Barnes, Ann Kerchner
2010-7-19
16586
El Dorado
Northern Sierra Nevada Mountains, southernmost point of Wright's Lake, 5.6 mi. NE (33 deg. ) of Kyburz
2085
Comment
UCR100880
Physalis crassifolia
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2692
Riverside
Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns.
198
Comment
UCR102928
Physalis crassifolia
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2670
Riverside
Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road.
457
Comment
UCR103579
Physalis crassifolia
George K. Helmkamp, E. A. Helmkamp
1998-1-17
2549
Riverside
Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal
.3
Comment
SD243193
Physocarpus capitatus
George K. 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
HSC101346
Pinus contorta subsp. murrayana
G. K. Helmkamp, E. A. Helmkamp
2009-11-5
15732
El Dorado
Sierra Nevada Mountains Foothills: Lake Oaks Mobile Home Park, Diamond Springs, south of the junction of Patterson Dr. and Pleasant Valley Rd.
523
Comment
SD237236
Pinus contorta subsp. murrayana
G. K. Helmkamp, E. A. Helmkamp
2006-9-12
11390
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
SD234731
Pinus jeffreyi
G. K. Helmkamp, E. A. Helmkamp
2008-7-22
13905
Alpine
Eastern Sierra Nevada Mountains: junction of CA-88/89 and entrance to Crystal Springs campground, 1.2 miles southwest of Woodfords.
1829
Comment
UCR194690
Pinus jeffreyi
George K. Helmkamp, E. A. Helmkamp
2007-5-31
12224 B
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, north of US-50 at the Lyon's Creek trailhead and creek crossing
2058
Comment
UCR171198
Pinus ponderosa
George K. Helmkamp, E. A. Helmkamp
2006-2-7
10055
El Dorado
Northern Sierra Nevada Foothills, [NNW of Coloma] California State Park, Coloma, beside South Fork of the American River
221
Comment
UCR172636
Pinus sabiniana
George K. Helmkamp, Elizabeth Helmkamp
2006-4-21
10211
El Dorado
Northern Sierra Nevada Foothills, Corner of Pleasant Valley Road and Patterson Drive, W end of Diamond Springs
537
Comment
UCR218239
Piperia elongata
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-2
16440
Placer
Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.3 miles SE of its junction with Canyon Way in Colfax
418
Comment
UCR91849
Piptatherum miliaceum
George K. Helmkamp
1996-5-24
1014
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
UCR188024
Pityrogramma triangularis var. triangularis
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11904
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
UCR257538
Plagiobothrys fulvus var. campestris
George K. Helmkamp
2014-4-17
22768
Yuba
Sierra Nevada Foothills, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville
264
Comment
RSA0115337
Plagiobothrys greenei
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17167
Yuba
Sacramento Valley: along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland.
44
Comment
UCR51564
Plagiobothrys hispidulus
George K. Helmkamp
1987-6-17
s.n.
Mono
Eastern Sierra Nevada Mtns., Campground at canyon, W base of Glass Mountain, 5 miles east of Owens River
2256
Comment
SEINET3828558
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2012-1
18789
Amador
Northern Sierra Nevada Mountains Foothills: Bunker Hill Road at the junction with N. Amador Road, c. 0.5 mi N of Amador City. 7.5
299
Comment
UCR121526
Plagiobothrys nothofulvus
George K. Helmkamp
2002-4-21
7483
San Luis Obispo
Central Coast, Santa Rosa Creek Rd., 11.2 mi east of Cambria
396
Comment
UCR161805
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9146
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 6.2 mi. NNE of Los Olivos
402
Comment
UCR235283
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2012-4-19
18795
Amador
Northern Sierra Nevada Mountains Foothills, Bunker Hill Road at the junction with Fremont Mine Road, just north of Amador City
311
Comment
UCR253470
Plagiobothrys nothofulvus
George K. Helmkamp
2014-4-5
22674
Amador
Eastern San Joaquin Valley, Sutter Creek-Ione Road, 1.2 miles south of its junction with CA-124
197
Comment
SBBG128872
Plagiobothrys nothofulvus
G. K. Helmkamp, E. A. Helmkamp
2012-3-9
18618
El Dorado
Tierra de Dios Drive, 0.4 mi WNW of its jct with Country Club Drive, N of Hwy 50 near Cameron Park
372
Comment
RSA0107418
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
SEINET3287497
Plagiobothrys stipitatus var. micranthus
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14359
Colusa
Sacramento Valley; along CA-20, 1.6 miles southwest of Colusa and just north of Colusa National Wildlife Refuge.
15
Comment
CLARK-A1045-190
Plagiobothrys tenellus
George K. Helmkamp
1979-5-5
Riverside
Santa Ana Mountains Southern Oak Woodland; Wildomar 7.5'Q
Comment
UCR97560
Plagiobothrys tenellus
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1430
San Luis Obispo
South Coast Range, along CA Hwy 58 west of Navajo Creek, west of Carrizo Plain
564
Comment
CLARK-A1045-153
Plagiobothrys undulatus
George K. Helmkamp
1978-6-1
Riverside
Santa Ana Mountains vernal pools near origin of creek; Wildomar 7.5'Q
Comment
RSA709324
Plantago coronopus
George K. Helmkamp
2004-5-9
8569
Santa Barbara
South of Guadalupe along Hwy CA-1, 0.2 mi S of Brown Rd.
46
Comment
UCR131095
Plantago lanceolata
George K. Helmkamp, E. A. Helmkamp
1999-5-22
4908
San Luis Obispo
Central Coast, Los Osos; north of the corner of Buckskin Dr. & Martingale Ave.
61
Comment
UCR170423
Plantago lanceolata
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10019
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
UCR240946
Plantago lanceolata
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19898
Placer
Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap
1634
Comment
UCR61724
Plantago lanceolata
George K. Helmkamp
1990-4-1
s.n.
San Luis Obispo
West Cuesta Ridge, c. 3 mi west of US Hwy 101
671
Comment
RSA0115334
Plantago major
George K. Helmkamp, E. A. Helmkamp
2012-10-9
20012
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
UCR122965
Plantago ovata
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6448
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
UCR29821
Plantago ovata
George K. Helmkamp
1983-3-24
383- 17
Riverside
Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road
336
Comment
UCR123924
Platanthera dilatata var. leucostachys
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6960
Trinity
North Coast Range; Trinity Mountains, Calif. Hwy 36, 7 mi west of Wildwood at Telephone Ridge
1280
Comment
UCR190316
Platanthera dilatata var. leucostachys
George K. Helmkamp, E. A. Helmkamp
2007-8-21
12782
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 21.3 miles north of CA-50 at Robbs Hut Road
2078
Comment
UCR234561
Platanthera dilatata var. leucostachys
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18149
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 2.6 miles north of its junction with Tamarack Road
2436
Comment
SD240799
Platanthera sparsiflora
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19414
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 (Tragedy Spring 7.5'Q)
2421
Comment
UCR237443
Platanthera sparsiflora
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19414
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
UCR194922
Plectritis brachystemon
George K. Helmkamp, E. A. Helmkamp
2007-5-27
12170
El Dorado
Northern Sierra Nevada Mountains Foothills, 0.7 mile down a hiking trail northeast of CA-49; trail starting 3.5 miles northwest of Placerville
430
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
CDA36251
Plectritis ciliosa subsp. ciliosa
G. K. Helmkamp, E. A. Helmkamp
2007-4-23
11788
Amador
Foothills, Northern Sierra Nevada Mountains; Along Bell Road beside Plymouth Creek just east of Calif. Hwy 49 in the vicinity of Enterprise.
Comment
UCR235693
Poa
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18918
Placer
Northern Sierra Nevada Mountains Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi. SE (123 deg. ) of Clementine Dam on the American River
396
Comment
SBBG128818
Poa annua
G. K. Helmkamp, E. A. Helmkamp
2012-2-3
18519
Stanislaus
junction of Sonora Rd and Milton Rd, 17 km NE (50 deg) of Escalon
58
Comment
SD144114
Poa annua
G. Helmkamp
1997-2-1
1295
Imperial
Southwest of Niland, along Sinclair Road, just east of Hatfield Road, common in mud beside irrigation ditch;
-54
Comment
SEINET3258006
Poa annua
George K. Helmkamp, E. A. Helmkamp
2007-3-22
11671
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
SEINET3287538
Poa annua
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14322
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
SEINET3411984
Poa annua
George K. Helmkamp, E. A. Helmkamp
2012-2-9
18535
Colusa
Sacramento Valley: River Road, 7.1 miles N of Colusa; east side of Sacramento River
18
Comment
SEINET3821623
Poa annua
George K. Helmkamp, E. A. Helmkamp
2010-3-26
15782
Sacramento
Southern Sacramento Valley, Pony Brown Road, 0.7 mile east of its junction with Ione Road, 2.3 miles NW (338 degrees) of Eagle's Nest Airport (Carbondale 7.5' Q)
81
Comment
UCR249938
Poa annua
George K. Helmkamp
2013-3-14
20189
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
SEINET3123352
Poa bolanderi
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13801
Alpine
Northern Sierra Nevada Mountains: Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR176447
Poa bolanderi
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10880
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
RSA748987
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11870
El Dorado
junction of Ice House Road and White Meadows Road, about 2 miles northwest of US-50
1029
Comment
SD197635
Poa bulbosa
G. K. Helmkamp, E. A. Helmkamp
2008-5-4
13386
Amador
Sierra Nevada Mountains Foothills: along Tiger Creek Road, 2.8 miles east of CA-88; at the entrance of Tiger Creek Reservoir.
744
Comment
UCR197832
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13620
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
UCR208266
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14647
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill
476
Comment
UCR240889
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19120
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 1.1 miles west of Cooks Station
1439
Comment
UCR196847
Poa cusickii
George K. Helmkamp
2008-6-17
13682
Amador
Northern Sierra Nevada Mountains, Bear River Reservoir Road along the south side of Bear River Reservoir
1797
Comment
UCR235629
Poa infirma
George K. Helmkamp, E. A. Helmkamp
2012-4-27
18865
El Dorado
Northern Sierra Nevada Mountains Foothills, Mosquito Road north of Placerville, at south side of the crossing of the South Fork American River
401
Comment
UCR171399
Poa leptocoma subsp. leptocoma
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9968
Placer
Northern Sierra Nevada Mtns., c. 3.5 mi NW of Lake Tahoe; Along the Truckee River and Calif. Highway 89, 0.1 mi N of Alpine Meadows Road
1902
Comment
CLARK-A1045-434
Poa pratensis
George K. Helmkamp
1979-6-29
San Bernardino
San Bernardino Mountains north shore of Lake, .5 mile west of Forest Service Station; ; Fawnskin 7.5'Q
2133
Comment
UCR190649
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2005-3-25
9217
San Luis Obispo
Outer South Coast Ranges, Santa Lucia Wilderness; Hi Mountain Road, 6.7 miles ENE of Lopez Lake near Salt Creek
399
Comment
UCR257709
Poa secunda var. secunda
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20437
El Dorado
Sierra Nevada Mountains, Mormon Emigrant Trail, 70 meters northwest of its junction with Park Creek Road, 1 mile NW of Bryants
1311
Comment
UCR216924
Pogogyne ziziphoroides
George K. Helmkamp, E. A. Helmkamp
2010-5-4
15954 A
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
UCR219153
Polygala cornuta var. cornuta
George K. Helmkamp, E. A. Helmkamp
2009-10-3
15665
El Dorado
Sierra Nevada Mountains, junction of Capps Crossing Rd (Bonetti Rd on road sign) and Mormon Emigrant Trail; 3.6 miles east of Sly Park Road at Jenkinson Lake
1227
Comment
CAS-BOT-BC133214
Polygonum
G. K. Helmkamp; E. A. Helmkamp
2009-9-13
15608
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
529
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
SEINET3828546
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2011-1
18485
Sutter
Sacramento Valley: Garden Hwy at the southwest end of the village of Nicolaus (Nicolaus 7.5')
18
Comment
RSA750450
Polygonum bistortoides
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13953
El Dorado
Dark Lake 0.4 mile northwest of the entrance to Wright's Lake along Wright's Lake Road.
2148
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
RSA715234
Polygonum hydropiper
George K. Helmkamp, E. A. Helmkamp
2005-9-12
9865
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento, Sly Park road (County Hwy E-16) 2 miles E of Pleasant Valley.
854
Comment
UCR232641
Polygonum hydropiperoides
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18410
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
UCR122370
Polygonum paronychia
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7018
Humboldt
North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay
15
Comment
UCR253808
Polygonum persicaria
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20107
Placer
Sacramento Valley, north of William Lane on an unnamed levee road to Markham Ravine
35
Comment
UCR218253
Polygonum phytolaccifolium
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16599
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
UCR131833
Polygonum punctatum
George K. Helmkamp
2003-10-8
8192
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
UCR201765
Polygonum punctatum
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14218
Sutter
Sacramento Valley, South Butte Road 1.2 miles northwest of junction with CA-20, west of Yuba City
23
Comment
UCR207867
Polypodium calirhiza
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14695
El Dorado
Sierra Nevada Mountains Foothills, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
Comment
UCR235628
Polypodium glycyrrhiza
George K. Helmkamp, E. A. Helmkamp
2012-4-27
18867
El Dorado
Northern Sierra Nevada Mountains Foothills, Mosquito Road north of Placerville, at south side of the crossing of the South Fork American River
401
Comment
UCR191082
Polystichum imbricans subsp. curtum
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12297
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 2.0 miles south of Mormon Emigrant Trail
1189
Comment
UCR191111
Polystichum imbricans subsp. curtum
George K. Helmkamp, E. A. Helmkamp
2007-8-29
12824
Yuba
Northern Sierra Nevada Mountains Foothills, Mountain House Road 0.6 mile west of the Sierra Co. line; Sleighville area beside Willow Creek
1021
Comment
OBI45895
Porophyllum gracile
G. Helmkamp
1986-10-18
s.n.
San Bernardino
Whipple Mts, along Havasu Palms Rd ca 3 mi NW of Black Meadow Landing Rd (T3N, R26E, NW1/4 sec 21)
396
Comment
UCR171336
Potentilla glandulosa
George K. Helmkamp, E. A. Helmkamp
2005-10-1
9978
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
UCR198492
Potentilla glandulosa
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13390
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
RSA756978
Potentilla glandulosa subsp. ashlandica
George K. Helmkamp, Amy Barnes
2009-7-8
15122
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
UCR197530
Potentilla glandulosa subsp. ashlandica
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13410
Calaveras
Sierra Nevada Mountains Foothills, along CA-26, 1.7 miles northeast of Glencoe
674
Comment
UCR194962
Potentilla glandulosa subsp. glandulosa
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12005
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 2.8 miles southeast of Foresthill
814
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
SEINET11261876
Potentilla glandulosa subsp. reflexa
George K. Helmkamp, E. A. Helmkamp
2012-4-30
18881
El Dorado
Northern Sierra Nevada Mountains Footlhills: Mosquito Road, 0.3 miles N of the bridge over the South Fork American River.; 0
427
Comment
UCR233181B
Potentilla glandulosa subsp. reflexa
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17660
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing Road, 5.2 miles south of its junction with Mormon Emigrant Trail
1409
Comment
UCD113890
Potentilla gracilis var. elmeri
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11140
Alpine
Northern Sierra Nevada Mountains: Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake.
2509
Comment
CAS-BOT-BC228596
Potentilla gracilis var. fastigiata
George K. Helmkamp; William Barnes
2010-9-4
16938
El Dorado
Northern Sierra Nevada Mountains: Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
UCR176533
Potentilla gracilis var. fastigiata
George K. Helmkamp, E. A. Helmkamp
2006-8-14
11231
Nevada
Northern Sierra Nevada Mtns, just south of I-80 on Lake Valley Rd
1755
Comment
UCR189651
Potentilla gracilis var. fastigiata
George K. Helmkamp
2007-7-7
12492
Alpine
Northern Sierra Nevada Mountains, Blue Lakes [Forestdale] Road, 0.2 mile south of its junction with CA-88
2378
Comment
CAS-BOT-BC226234
Poterium sanguisorba
G. K. Helmkamp; E. A. Helmkamp
2011-5-26
17393
Nevada
Northern Sierra Nevada Mountains Foothills: SE of Grass Valley, 0.2 mile south of CA-174 at the junction of Meadow View Road and Peardale Road
834
Comment
CHSC118021
Poterium sanguisorba
G. K Helmkamp; E. A Helmkamp
2007-9-14
12959
Placer
Foothills, northern Sierra Nevada Mountains: along Mosquito Ridge Road 0.4 mile east of Foresthill.
942
Comment
UCD113976
Poterium sanguisorba
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-11
10372
Nevada
Northern Sierra Nevada Mtns.: Cedarsong Road, 0.1 mi. NE of CA Hwy 49 (NW of Nevada City).
637
Comment
UCR121513
Prunella vulgaris
George K. Helmkamp, E. A. Helmkamp
2000-6-19
5785
Mendocino
North Coast Range, Calif. Hwy 20 (Fort Bragg-Willits Rd) 6.8 mi east of US-1, southeast of Fort Bragg
152
Comment
UCR170463
Prunella vulgaris
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10017
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
UCR178644
Prunella vulgaris subsp. lanceolata
George K. Helmkamp, E. A. Helmkamp
2006-9-7
11358
El Dorado
Northern Sierra Nevada Mountains, Ice House Road. Robbs Valley near Robbs Hut junction
1720
Comment
RSA0093562
Prunella vulgaris var. lanceolata
George K. Helmkamp, Elizabeth Helmkamp
2013-10-14
22418
Placer
Sierra Nevada Mountains Foothills. Yankee Jim Road, 3.6 miles northwest of its junction with Foresthill Road.
651
Comment
UCR253108
Prunella vulgaris var. lanceolata
George K. Helmkamp, Elizabeth Helmkamp
2013-7-31
22058
El Dorado
Northern Sierra Nevada Mountains, junction of Ice House Road and Forestry Route 13N21, 0.9 mile south of the northern junction of Ice House Road and Wentworth Springs Road
1701
Comment
UCR258206
Prunella vulgaris var. lanceolata
George K. Helmkamp, Amy Barnes
2014-7-28
22977
El Dorado
Northern Sierra Nevada Mountains, at the junction of Wentworth Springs Road and Ice House Road
1412
Comment
SEINET7224575
Prunus avium
George K. Helmkamp, E. A. Helmkamp
2010-6-10
16264
El Dorado
Sierra Nevada Mountains foothills: Forni Road, on the southwest side of the bridge over Weber Creek, 1.5 air miles NW (331d) of Diamond Springs
479
Comment
UCD113205
Prunus emarginata
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11054
El Dorado
Northern Sierra Nevada Mountains; along Wright's Lake Road (Forestry Route 4), 3.3 miles north of Highway US-50.
2049
Comment
UCR173446
Prunus emarginata
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10545
El Dorado
Northern Sierra Nevada Mountains, El Dorado National Forest; south of Union Valley Reservoir, c. 2 air mi. N of US Hwy 50; junction of Ice House Canyon Road and Granite Springs Road
1610
Comment
UCR218440
Prunus emarginata
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16481
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
UC2015363
Pseudobahia heermannii
G. K. Helmkamp, E. A. Helmkamp
2009-3-19
14414
El Dorado
Sierra Nevada Mtns. Foothills: Rock Creek Road, 2.4 miles east of its junction with CA-193, above South Fork of American River
Comment
UCR257063
Pseudognaphalium californicum
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20621
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
UCR258191
Pseudognaphalium luteoalbum
George K. Helmkamp, Elizabeth Helmkamp
2012-10-16
20031
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
SD148240
Pseudognaphalium stramineum
G. K. Helmkamp, E. A. Helmkamp
2001-7-8
7013
Humboldt
Samoa Peninsula, 2.6 miles south of California Highway 255, bridge across Humboldt Bay.
14
Comment
CAS-BOT-BC126748
Pseudotsuga menziesii var. menziesii
G. K. Helmkamp; Mary Alice Barnes; Mary Jane Ganibe
2010-7-6
16467
El Dorado
Sierra Nevada Mountains: Silver Fork Road, 4.1 miles south of its junction with US-50 in Kyburz
1500
Comment
RSA785387
Pseudotsuga menziesii var. menziesii
George K. Helmkamp, Mary Alice Barnes, Mary Jane Ganibe
2010-7-6
16467
El Dorado
Silver Fork Road, 4.1 miles south of its junction with US-50 in Kyburz
1500
Comment
CLARK-A1045-611
Psilostrophe cooperi
George K. Helmkamp
1977-5-29
San Bernardino
Clark Mountain 5 miles north of Interstate Highway 15, off of Cima Road; west edge of Clark Mountain, along power line road; Clark Mt. 15'Q
Comment
UCR201542
Psoralea physodes
George K. Helmkamp, E. A. Helmkamp
2008-9-28
14164
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
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
RSA749766
Pteridium aquilinum var. pubescens
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14936
Shasta
Alvord Road, 0.2 mile south of its junction with CA-44, junction is 1.1 miles east of Shingletown
938
Comment
UCD136171
Pteridium aquilinum var. pubescens
G. K. Helmkamp; E. A. Helmkamp
2007-5-7
11944
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
UCR206005
Pteridium aquilinum var. pubescens
George 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
938
Comment
UCR207664
Pterostegia drymarioides
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14534
El Dorado
Sierra Nevada Mountains Foothills, Rock Creek Road, 4.2 miles west of the bridge over Rock Creek
401
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
UCR197314
Purshia tridentata var. tridentata
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13780
El Dorado
Northern Sierra Nevada Mountains, north side of CA-88, 2.1 miles northeast of the junction with Mormon Emigrant Trail
2340
Comment
SEINET1909548
Quercus agrifolia
George K. Helmkamp
2004-1
8408
San Luis Obispo
Central Coast: Nipomo Valley, along Los Berros Rd., 0.8 mi NW of its junction with Hwy US-101
Comment
UCR140769
Quercus agrifolia var. agrifolia
George K. Helmkamp
2004-3-25
8408
San Luis Obispo
Central Coast, Nipomo Valley, along Los Berros Rd., 0.8 mi NW of its junction with Hwy US-101
73
Comment
UCR173660
Quercus chrysolepis
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10324
Amador
Northern Sierra Nevada foothills, Climax Road southwest of Pine Grove, 0.1 mile west of Calif. Hwy 88
701
Comment
UCR198559
Quercus chrysolepis
George 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 Tiger Creek Reservoir
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
UCR123337
Quercus douglasii
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6884
Tehama
Central CA Valley, Calif. Hwy 36, 12 mi west of Red Bluff at junction with Cannon Rd.
305
Comment
UCR183931
Quercus kelloggii
George 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
671
Comment
UCR201725
Quercus lobata
George K. Helmkamp, E. A. Helmkamp
2008-10-30
14283
Sacramento
Southern Sacramento Valley, Highway E13 (Twin Cities Road), 3.5 miles west of CA-99
18
Comment
UCR170324
Quercus wislizeni
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10026
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
SD212630
Quercus wislizeni var. wislizeni
G. K. Helmkamp, Elizabeth Helmkamp
2006-5-4
10291
El Dorado
East end of Diamond Springs, 0.1 mile north of the junction of Pleasant Valley Road and Highway Ca 49.
543
Comment
UCR173947
Quercus wislizeni var. wislizeni
George K. Helmkamp, Elizabeth Helmkamp
2006-5-4
10291
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
UCR173951
Ranunculus alismifolius var. alismifolius
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10761
El Dorado
Northern Sierra Nevada Mountains, 1.1 miles west of Wright's Lake
2027
Comment
CLARK-A1045-1278
Ranunculus californicus
George K. Helmkamp
1979-6-6
San Diego
Pala Creek beside Creek, 2 miles north of Pala; Pechanga 7.5'Q
Comment
RSA0042967
Ranunculus californicus
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20352
Placer
Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax
561
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
UCR161951
Ranunculus californicus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8923
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
UCR173341
Ranunculus californicus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10379
Nevada
Northern Sierra Nevada Mtns., Cedarsong Road, 0.1 mi. NE of Calif. Hwy 49 (NW of Nevada City)
637
Comment
UCR61755
Ranunculus californicus
George K. Helmkamp
1989-4-17
s.n.
San Luis Obispo
Irish Hills, at the crest of Prefumo Canyon Road
366
Comment
CAS-BOT-BC378523
Ranunculus californicus var. californicus
G. K. Helmkamp; E. A. Helmkamp
1999-4-18
4703
San Diego
between Lake Henshaw and Matagual Valley; Barrett Hill Rd off of Hwy 79, ca. 6.5 mi SW of Warner Hot Springs 00000000000000000000000000000
488
Comment
CAS-BOT-BC378573
Ranunculus californicus var. californicus
G. K. Helmkamp
1997-3-8
1463
San Luis Obispo
SE of Los Osos; Swift Ranch, starting ca. 2 mi S of Los Osos Vly. Rd. on Clark Vly. Rd. 000000000000000000000000
107
Comment
UCR163016
Ranunculus canus
George K. Helmkamp, E. A. Helmkamp
2005-4-6
9337
Santa Barbara
Outer South Coast Ranges, San Miguelito road SSW of Lompoc; mile 4.2 near Lompoc Hills
229
Comment
UCD96143
Ranunculus hebecarpus
G. K. Helmkamp; E. A. Helmkamp
2007-4-23
11779
Amador
Northern Sierra Nevada Mountains; along Bell Road beside Plymouth Creek, just east of CA-49 in the vincity of Enterprise.
302
Comment
UCR107271
Ranunculus hebecarpus
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3667
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
UCR242783
Ranunculus muricatus
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15830
San Joaquin
Northeast San Joaquin Valley, Collier Road, 0.1 mile west of its junction with CA-88, 1.83 mi. NE (27 deg. ) of Clements
47
Comment
SD236391
Ranunculus occidentalis
G. K. Helmkamp, E. A. Helmkamp
2008-5-20
13480
Sierra
Sierra Nevada Mountains Foothills: Henness Pass road, 3.4 miles northeast of Camptonville.
1260
Comment
UCD96797
Ranunculus occidentalis
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10967
El Dorado
Northern Sierra Nevada Mnts: Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50.
2104
Comment
UCR207650
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14551
El Dorado
Sierra Nevada Mountains Foothills, along CA-193, 1.1 miles south of the South Fork American River at Chili Bar
381
Comment
UCR207887
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14569
Placer
Sierra Nevada Mountains Foothills, Rucky Chuck Rd. (dirt) 1.2 miles southeast of Forest Hill Road
448
Comment
UCR208571
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2009-5-4
14598
El Dorado
Sierra Nevada Mountains Foothills, Sly Park Road, 0.3 miles southwest of its junction with Mormon Emigrant Trail
1067
Comment
UCR230712
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17830
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 3.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1494
Comment
UCR257007
Ranunculus occidentalis
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20576
Amador
Sierra Nevada Mountains, Fiddletown Road, c. 9 miles northeast of its junction with E-16/Shenandoah Rd. near Plymouth
665
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
UCR201738
Raphanus raphanistrum
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14211
Yuba
Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst
20
Comment
RSA0115435
Raphanus sativus
George K. Helmkamp, Elizabeth Helmkamp
2014-1-4
22509
Colusa
Sacramento Valley: along CA-20 at Sycamore Cutoff, 1.3 miles west of the Sacramento River crossing.
20
Comment
RSA747028
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2007-9-30
13049
Sutter
Sacramento Ave. on the east side of CA-99, junction 1.4 miles north of the Feather River
21
Comment
UCR198447
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2008-3-6
13137
Sutter
Sacramento Valley, Sutter Basin; junction of CA-20 and South Butte Rd, west of Yuba City
19
Comment
UCR242844
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15857
Solano
Northern San Joaquin Valley, Tremont Road, 0.8 mile west of Mace Blvd, 3.8 mi. (air) SE of Davis
3
Comment
UCR95919
Raphanus sativus
George K. Helmkamp
1996-9-22
1199
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
UCR200916
Rhamnus crocea
George K. Helmkamp, E. A. Helmkamp
2008-9-9
14073
El Dorado
Foothills, northern Sierra Nevada Mountains, junction of Bear Creek Road and Meadow Brook Road at Bear Creek; east of CA-193 and south of Georgetown
678
Comment
UCR159339
Rhamnus tomentella
George K. Helmkamp, E. A. Helmkamp
2004-7-7
8738
Santa Barbara
Central Coast, Termination of San Miguelito Road., 8.7 mi SW of I Street in Lompoc
244
Comment
RSA713976
Rhus ovata
George K. Helmkamp
2004-1-1
8237
Santa Barbara
1.5 mi NW of Cold Creek along San Marcos Pass Rd.
412
Comment
SD178081
Rhus ovata
G. K. Helmkamp
2004-4-21
8505
Santa Barbara
San Rafael Mountains; Pintado Creek, 8.5 miles north of Los Olivos along Figeroa Mountain Road.
412
Comment
UCR140367
Rhus ovata
George K. Helmkamp
2004-4-14
8432
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR219039
Ribes cereum var. cereum
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16507
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
UCR78588
Ribes cereum var. cereum
George K. Helmkamp
1993-9-22
37- 06
San Bernardino
San Bernardino Mtns, Round Valley Road just east of Calif. Hwy 38
2378
Comment
UCR123542
Ribes nevadense
George K. Helmkamp, E. A. Helmkamp
2000-4-25
5582
Kern
Tehachapi Mountains, Water Cyn Rd SW of Tehachapi and 1.0 mi south of Highline
1494
Comment
UCR197617
Ribes nevadense
George K. Helmkamp, E. A. Helmkamp
2008-5-15
13434
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 1.2 miles north of its junction with US-50
1817
Comment
UCR250617
Robinia pseudoacacia
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20388
Amador
Northern Sierra Nevada Mountains Foothills, Along CA-26 (Red Corral/West Point-Pioneer Rd.), 0.7 mile west of the crossing over North Fork Mokelumne River
704
Comment
UCD115305
Rorippa curvisiliqua
G. K. Helmkamp; E. A. Helmkamp
2006-10-20
11553
El Dorado
Northern Sierra Nevada Mountain Foothills; 0.6 mile northwest of Pleasant Valley along Pleasant Valley Road.
756
Comment
UCR197012
Rorippa curvisiliqua
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13802
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
SD236250
Rorippa nasturtium-aquaticum
G. K. Helmkamp, E. A. Helmkamp
2008-7-22
13897
Alpine
Eastern Sierra Nevada Mountains: Carson River road, 0.4 mile east of its west junction with CA-88 (Woodfords 7.5'Q)
1712
Comment
UCR122143
Rorippa nasturtium-aquaticum
George K. Helmkamp, E. A. Helmkamp
2000-4-21
5455
San Luis Obispo
Santa Lucia Range, Santa Rosa Creek Road, 5.6 mi east of Cambria
76
Comment
UCR188031
Rorippa nasturtium-aquaticum
George K. Helmkamp, E. A. Helmkamp
2007-5-1
11927
El Dorado
Foothills, Northern Sierra Nevada Mountains, along CA-49, 2.5 miles northwest of US-50 in Placerville
549
Comment
UCR37549
Rorippa nasturtium-aquaticum
George K. Helmkamp
1984-4-20
840420- 53
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
SEINET2442021
Rosa bridgesii
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15369
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').; 0
1786
Comment
UCR131902
Rubus discolor
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5736
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR233099
Rubus discolor
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17745
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
CAS-BOT-BC147110
Rubus glaucifolius
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12053
Placer
Northern Sierra Nevada Mountains Foothills: along Forest Hill Road, 2.3 miles northeast of Foresthill
1116
Comment
UCR173992
Rubus laciniatus
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-29
10799
Calaveras
Northern Sierra Nevada foothills, along Calif. Hwy 26, 0.2 mile north of West Point
838
Comment Read comments Aug 4 2008
UCR248399
Rubus laciniatus
George K. Helmkamp, Elizabeth Helmkamp
2013-7-25
22021
El Dorado
Northern Sierra Nevada Mountains, Wentworth Springs Road, 7.4 miles east of the junction with Volcanoville Road
1320
Comment
UCR191064
Rubus parviflorus
George K. Helmkamp, E. A. Helmkamp
2007-6-6
12280
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
UCR252936
Rubus parviflorus
George K. Helmkamp, Elizabeth Helmkamp
2013-7-6
20988
Amador
Northern Sierra Nevada Mountains, Bear River Road at the south end of the dam for Lower Bear River Reservoir
1784
Comment
UCR132145
Rubus ursinus
George K. Helmkamp
2003-10-24
8217
San Luis Obispo
Central Coast, El Campo Rd 0.1 mi east of Los Berros Rd, SE of Arroyo Grande
46
Comment
UCR218752
Rumex acetosella
George K. Helmkamp, Laurel Bezdecheck
2010-6-19
16323
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
UCR250640
Rumex acetosella
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20887
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
UCR222560
Rumex conglomeratus
George K. Helmkamp, E. A. Helmkamp
2010-6-5
16238
Sonoma
North Coast Ranges, River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guerneville on slope above the Russian River
12
Comment
CDA2903
Rumex crispus
G. K. Helmkamp, E. A. Helmkamp
2004-6-24
8725
Santa Barbara
Central Coast; Between Ocean Park and Pacific Ocean at Surf; NW of Lompoc
Comment
UCR158372
Rumex crispus
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8712 A
Santa Barbara
Central Coast, Ocean Park at Surf, NW of Lompoc
6
Comment
UCR162154
Rumex crispus
George K. Helmkamp, E. A. Helmkamp
2005-2-14
8909
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive
122
Comment
UCR173654
Rumex crispus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-7
10158
Amador
Northern Sierra Nevada Foothills, ESE of Sacramento; 1.0 mi south of Plymouth along Calif. Hwy 49
326
Comment
UCR219018
Rumex crispus
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16342
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
UCR233111A
Rumex crispus
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17286
Sutter
Sacramento Valley, junction of Nicolaus Road and Pleasant Grove Road, 2 miles ESE (97 deg. ) of Trowbridge
16
Comment
UCR253262
Rumex crispus
George K. Helmkamp, Amy Barnes
2014-4-7
22720
Sacramento
Sacramento Valley, Clay East Road, 1 mile east of its junction with CA-104
52
Comment
IRVC29047
Rumex crispus
G. K. Helmkamp
2003-9-26
8178
San Luis Obispo
southwest edge of Oceano at the edge of sand dune recreation area Central Coast
6
Comment
UCR257199
Rumex dentatus
George K. Helmkamp, Mary Alice Barnes
2013-5-8
20508
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
13
Comment
SEINET3860447
Rumex paucifolius
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16627
El Dorado
Northern Sierra Nevada Mountains: Forestry Route 42, 1.8 miles west of its junction with Wright's Lake Road.; 0
2034
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
RSA492828
Salazaria mexicana
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
UCR120512
Salicornia pacifica
George K. Helmkamp, E. A. Helmkamp
2001-6-3
6810
Solano
San Francisco Bay Region, Hammond Island SE of Fairfield. Grizzly Rd., 7.5 mi SE of entrance to wildlife preserve
6
Comment
CAS-BOT-BC304416
Salix lasiolepis
George K. Helmkamp; E. A. Helmkamp
2012-3-9
18609
Yolo
Sacramento Valley: East Main Street (Co. Rd. 22), Woodland (parallel to I-5), 1.7 mile west of the Sacramento River
7
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
UCR122939
Salvia columbariae
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6437
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
UCR37631
Salvia columbariae
George K. Helmkamp
1984-4-20
840420- 13
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
SD178217
Salvia spathacea
G. K. Helmkamp
2004-4-21
8504
Santa Barbara
San Rafael Mountains: Pintado Creek, 8.5 mi north of Los Olivos along Figeroa Mtn Rd. In dense clusters, mostly in shaded areas.
412
Comment
UCR161795
Salvia spathacea
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9155
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 6.2 mi. NNE of Los Olivos
402
Comment
RSA0051411
Sambucus racemosa var. microbotrys
George K. Helmkamp, Belinda Pesheck
2013-7-14
21085
Alpine
Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road.
2468
Comment
UCR190585
Sanguisorba minor subsp. muricata
George K. Helmkamp, E. A. Helmkamp
2007-9-14
12959
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill
942
Comment
UCR122628
Sanicula bipinnata
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7571
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
UCR122409
Sanicula bipinnatifida
George K. Helmkamp, E. A. Helmkamp
2002-4-24
7534
Madera
Western Sierra Nevada foothills, Auberry Rd (Rd 200/North Fork Rd.) 5.0 mi south of North Fork
503
Comment
UCR197334
Sanicula bipinnatifida
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13401
Calaveras
Sierra Nevada Mountains Foothills, Ridge Road, 1.6 miles east of CA-26, southeast of Glencoe
866
Comment
RSA597221
Sanicula crassicaulis
George K. Helmkamp
1996-5-24
1035
San Luis Obispo
State Park System north of Turi Road and 1.5 mi east of South bay Blvd.
95
Comment
UCR161305
Sanicula crassicaulis
George K. Helmkamp, E. A. Helmkamp
2005-3-9
9100
San Luis Obispo
Central Coast Hills, Irish Hills; See Canyon, 4.4 mi N of San Luis Bay Drive
186
Comment
UCR184790
Sanicula crassicaulis
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11948
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
UCR230665
Sanicula crassicaulis
George K. Helmkamp, E. A. Helmkamp
2011-5-10
17227
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
UCR161357
Sanicula laciniata
George K. Helmkamp, E. A. Helmkamp
2005-3-8
9074
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road
316
Comment
CAS-BOT-BC229020
Sanicula tuberosa
George K. Helmkamp; Ann Kerchner; Amy Barnes
2011-8-13
18057
Calaveras
Northern Sierra Nevada Mountains: Black Springs Road (Forest Route 6N45?), 1.7 miles north of its junction with CA Hwy 4
2058
Comment
UCR229596
Sanicula tuberosa
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18057
Calaveras
Northern Sierra Nevada Mountains, Black Springs Road [Forest Route 7N23], 1.7 miles north of its junction with CA Hwy 4
2058
Comment
UCR233121B
Sanicula tuberosa
George K. Helmkamp, E. A. Helmkamp
2011-8-6
18003
Amador
Northern Sierra Nevada Mountains, Ellis Road, 0.2 miles south of its junction with CA-88
2009
Comment
UCR110987
Sarcodes sanguinea
George K. Helmkamp
1998-6-27
4128
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
UCR188242
Saxifraga californica
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11861
El Dorado
Foothills, Northern Sierra Nevada Mountains, Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House
1027
Comment
SEINET273037
Scandix pecten-veneris
G. K. Helmkamp, E. A. Helmkamp
1998-5-16
3714
Santa Clara
Sierra Azul: Hicks Rd at S end of San Jose; 3.2 mi S of Camden Av.
152
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
SEINET3287506
Schedonorus arundinaceus
George K. Helmkamp, E. A. Helmkamp
2009-5-26
14801
El Dorado
Sierra Nevada Mountains Foothills; Lake Oaks Mobile Home Park, Diamond Springs.
530
Comment
UCD65889
Schedonorus arundinaceus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-19
10481
El Dorado
Northern Sierra Nevada Foothills: Lake Oaks mobile home park; corner of Pleasant Valley Road and Patterson Drive, Diamond Springs.
537
Comment
UCR102993
Schismus arabicus
George K. Helmkamp
1998-3-30
3007
San Bernardino
Mojave Desert, Dale Dry Lake, east of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR133344
Schoenoplectus acutus var. occidentalis
George K. Helmkamp
1993-10-5
39- 07
Inyo
Owens Valley, Pleasant Valley, north of Bishop, at edge of Owens River
1284
Comment
UCR215782
Scirpus microcarpus
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15350
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR262001
Scirpus microcarpus
George K. Helmkamp, Amy Barnes
2014-10-10
23163
El Dorado
Northern Sierra Nevada Mountains, along CA-89, 0.6 mile northwest of Luther Pass
2378
Comment
RSA748112
Scleranthus annuus
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11813
Amador
junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione
229
Comment
SD197732
Scleranthus annuus
G. K. Helmkamp, E. A. Helmkamp
2007-4-23
11813
Amador
Northern Sierra Nevada Mountains; junction of Tonzi Road and CA-124, ca. 7.0 mile north of Ione.
228
Comment
UCR102146
Scrophularia californica
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3679
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
UCR198494
Scrophularia desertorum
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13397
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
SEINET7249119
Scrophulariaceae
George K. Helmkamp, Mary Alice Barnes
2013-1
Placer
Comment
UCD60411
Sedum obtusatum subsp. obtusatum
G. K. Helmkamp; E. A. Helmkamp
2007-4-27
11862
El Dorado
Northern Sierra Nevada Mountains: Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House.
1027
Comment
SEINET2441001
Sedum spathulifolium
George K. Helmkamp, E. A. Helmkamp
2010-5-14
16040
El Dorado
Sierra Nevada Mountains Foothills: Happy Valley Road, 1.1 mi NE of Somerset, just W of the bridge over the Cosumnes River (Camino 7.5').
544
Comment
UCR230993
Sedum spathulifolium
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17536
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
UCR235574
Sedum spathulifolium
George K. Helmkamp, E. A. Helmkamp
2012-5-3
18897
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
UCR37434
Selaginella bigelovii
George K. Helmkamp
1984-5-1
C 5
San Bernardino
Little San Bernardino Mtns/Southern Mojave Desert, Big Morongo Preserve of the Nature Conservancy: south of the town of Morongo Valley in Big Morongo Canyon
808
Comment
UCR169943
Senecio
George K. Helmkamp
2004-6-12
08617
Santa Barbara
Central Coast Range, Purissima Hills. Harris Grade Rd at '28.04 mi', about 3 mi south of CA Hwy 135
229
Comment
CAS-BOT-BC226818
Senecio aronicoides
George K. Helmkamp; E. A. Helmkamp
2012-5-11
18944
Placer
Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road
1104
Comment
UCR122207
Senecio aronicoides
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5796
Mendocino
North Coast Range, 9.2 mi east of CA Hwy 1 on CA Hwy 20, southeast of Fort Bragg
305
Comment
UCR15000
Senecio aronicoides
George K. Helmkamp
1976-6-22
s.n.
Mono
Sierra Nevada Mtns, Mammoth Lakes
2409
Comment
CLARK-A1045-258
Senecio douglasii var. monoensis
George K. Helmkamp
1977-4-22
San Bernardino
Oro Grande Wash intersection of Phelan Road and U.S. Highway 395, west of Hesperia; ; Baldy Mesa 7.5'Q
914
Comment
CAS-BOT-BC363996
Senecio integerrimus var. major
G. K. Helmkamp; E. A. Helmkamp
2010-7-9
16472
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
CAS-BOT-BC364027
Senecio integerrimus var. major
G. K. Helmkamp; E. A. Helmkamp
2007-6-12
12328
Placer
Northern Sierra Nevada Mountains: Lake Spaulding Road just north of its junction with Hwy CA-20
1610
Comment
UCD135576
Senecio integerrimus var. major
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11146
Alpine
Northern Sierra Nevada Mountains. Wood's Lake Road, 0.3 mile N of the parking area for Wood's Lake. Wood's Creek.
2509
Comment
CLARK-A1045-1411
Senecio triangularis
George K. Helmkamp
1977-8-5
Mariposa
Sierra Nevada Porcupine Flats Campground; meadow; ; Yosemite Falls 7.5'Q
2590
Comment
RSA0081175
Senecio triangularis
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11058
El Dorado
Along Wrights Lake Road (Forest Route 4), 3.3 miles north of Hwy US-50.
2049
Comment
RSA614906
Senecio triangularis
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2252
Mono
South side of Lake Mary, South of Mammoth Lakes.
2744
Comment
UCD135786
Senecio triangularis
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11164
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail, 21.0 miles east of its junction with Sly Park Road.
2174
Comment
UCR190163
Senecio triangularis
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12543
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
RSA790653
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2012-4-17
18778
Yolo
Along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland
65
Comment
RSA518291
Sesbania exaltata
George K. Helmkamp
1989-9-16
s.n.
Riverside
W side of State Hwy. 78, 0.7 mi. N of Palo Verde. Palo Verde.
75
Comment
UCR107315
Sherardia arvensis
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3722
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; beside Guadalupe Reservoir
201
Comment
UCR121586
Sherardia arvensis
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4965
San Mateo
Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City
457
Comment
UCD116655
Sidalcea glaucescens
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11170
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road.
2250
Comment
UCD116663
Sidalcea glaucescens
G. K. Helmkamp; E. A. Helmkamp
2007-7-27
12604
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20.
1793
Comment
UCR189517
Sidalcea glaucescens
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12737
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 1.0 mile south of the junction with Mormon Emigrant Trail
2172
Comment
UCR197551
Sidalcea glaucescens
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13713
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
RSA0094839
Sidalcea hartwegii
George K. Helmkamp, Amy Barnes
2014-5-8
22861
Amador
Sierra Nevada Mountains Foothills. Sutter Creek-Volcano Road, 0.2 mile east of old CA-49 in town of Sutter Creek.
375
Comment
RSA750431
Sidalcea malviflora subsp. asprella
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14017
Placer
Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River
1811
Comment
UCR123964
Sidalcea multifida
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6847
Alpine
Sierra Nevada Mountains, Calif. Hwy 89, 7.1 mi west of US-395
2470
Comment
UCR189630
Sidalcea oregana subsp. spicata
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12639
Placer
Northern Sierra Nevada Mountains, 0.1 mile south of the Rainbow exit from Interstate-80, 0.5 miles east of Rainbow
1790
Comment
UCR206930
Silene bridgesii
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14953
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
SD244133
Silene californica
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19113
Calaveras
Northern Sierra Nevada Mountains Foothills: Lily Gap Road, 0.9 mile northeast of its junction with Winton Road, 8.1 km NE (60a^z) of West Point (Devils Nose 7.5'Q)
1132
Comment
UCR198558
Silene californica
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13391
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
UCR250673
Silene californica
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20413
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 1.9 miles east of its junction with CA-26 in West Point
652
Comment
UCR178748
Silene douglasii
George K. Helmkamp, E. A. Helmkamp
2006-8-30
11303
Alpine
Northern Sierra Nevada Mountains, Woods Lake, south of Calif. Hwy 88 and generally SE of Caples Lake
2521
Comment
RSA709062
Silene gallica
George K. Helmkamp
2005-4-17
9371
San Luis Obispo
Central Coast: Corbett canyon, 2.3 miles N of Hwy CA-227 in Arroyo Grande.
81
Comment
RSA782377
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2010-4-23
15903
Placer
along Salmon Falls Road, at Miners Valley Rd., 4.5 miles south of junction with CA-49 at Pilot Hill
287
Comment
SD237401
Silene gallica
G. K. Helmkamp, E. A. Helmkamp
2010-4-23
15903
Placer
Sierra Nevada Mountains Foothills: along Salmon Falls Road, at Miners Valley Road, 4.5 miles south of junction with CA-49 at Pilot Hill (Pilot Hill 7.5'Q)
287
Comment
UCR140087
Silene gallica
George K. Helmkamp
2004-2-29
8316
San Luis Obispo
Central Coast, Nipomo Mesa, Nipomo, Orchard Ave. 0.1 mi NW of Division St.
116
Comment
UCR160300
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9600
San Luis Obispo
Central Coast Ranges, Arroyo Grande to Huasna Road along Arroyo Seco Creek, 9.6 miles NE of Huasna Townsite Road
378
Comment
UCR188011
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2007-5-1
11909
El Dorado
Foothills, Northern Sierra Nevada Mountains, access road to South Fork American River along CA-49, 4.4 miles northwest of Coloma
207
Comment
UCR218174
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16164
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 1.6 miles east of the village of Sutter Creek
412
Comment
UCR233122A
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17327
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
CLARK-A1045-898
Silene gallica
George K. Helmkamp
1978-4-15
San Bernardino
Fontana Sierra Avenue, disturbed roadside; Fontana 7.5'Q
Comment
UCR130061
Silene lemmonii
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6912
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
CAS-BOT-BC438824
Silene vulgaris
George K. Helmkamp; Mary Alice Barnes
2013-5-3
20462
Placer
Foothills, northern Sierra Nevada Mountains: SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road.
974
Comment
UCR190136
Silene vulgaris
George K. Helmkamp, E. A. Helmkamp
2007-9-14
12953
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 0.4 mile east of Foresthill
942
Comment
UCR161654
Silybum marianum
George K. Helmkamp, E. A. Helmkamp
2005-5-17
9485
Monterey
Central Coast, 0.9 mi south of Plaskett (N of Gorda); along Calif. Highway 1
90
Comment
UCR215918
Sisymbrium altissimum
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15067
El Dorado
Sierra Nevada Mountains, Ice House Road, 5.5 miles north of its junction with CA-50, c. 10.5 air miles NE (78 deg. ) of Pollock Pines
1520
Comment
SD240949
Sisymbrium officinale
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18723
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 7.5'Q)
52
Comment
UCR140127
Sisymbrium orientale
George K. Helmkamp
2004-3-13
8344
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
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
HSC79215
Solanum americanum
G. K. Helmkamp
1984-4-29
- 2
San Bernardino
Big Morongo Canyon near the Riverside Co. line, 2 mi. below the Big Morongo Preserve headquarters, floor of main canyon to 0.25 mi. up a broad side canyon to the east.
701
Comment
UCR15431
Solanum americanum
George K. Helmkamp
1977-8-11
s.n.
Ventura
Corner of A street and Ventura Boulevad, Port Hueneme.
3
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
RSA0053698
Solidago canadensis subsp. elongata
G. K. Helmkamp, E. A. Helmkamp
2012-9-25
19933
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
UCR232180
Solidago canadensis subsp. elongata
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18195
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.9 miles south of its junction with US-50 in Kyburz
1280
Comment
UCD135930
Solidago elongata
G. K. Helmkamp; E. A. Helmkamp
2006-10-10
11521
Nevada
Northern Sierra Mountains Foothills: along Hwy. CA-49, 5.8 miles NNW of Nevada City.
750
Comment
UCR102571
Solidago multiradiata
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2377
Mono
Sierra Nevada Mtns., along Calif. Hwy 120, 0.5 mile north of Tioga Pass, Nunatak Meadow area
2957
Comment
UCR242009
Solidago sparsiflora
George K. Helmkamp, E. A. Helmkamp
2012-9-15
19844
El Dorado
Northern Sierra Nevada Mountains Foothills, Volcanoville Road, 1.3 miles north of its junction with Wentworth Springs Road
1107
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
UCR158754
Sonchus oleraceus
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8697
Santa Barbara
Central Coast, Ocean Park at Surf, NW of Lompoc
6
Comment
UCR201922
Sonchus oleraceus
George K. Helmkamp, E. A. Helmkamp
2008-10-9
14235
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
UCR201739
Sorghum halepense
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14212
Yuba
Sacramento Valley, Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst
20
Comment
UCR241267
Sorghum halepense
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19763
Amador
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.2 miles north of the junction with Fiddletown Road at Plymouth
299
Comment
UCR233270
Spartium junceum
George K. Helmkamp, E. A. Helmkamp
2011-7-9
17679
Placer
Northern Sierra Nevada Mountains Foothills, Yankee Jim Road, 1.4 miles northwest of the city of Foresthill
764
Comment
CLARK-A1045-1375
Spergula arvensis
George K. Helmkamp
1978-4-23
San Luis Obispo
Morro Bay Turri Road at Morro Bay; Morro Bay S 7.5'Q
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
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
UCR30102
Sphaeralcea ambigua
George K. Helmkamp
1983-4-5
483- 14
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
SD197656
Sphenosciadium capitellatum
G. K. Helmkamp, E. A. Helmkamp
2008-8-8
13992
Alpine
Northern Sierra Mountains: along CA-89, 1.4 miles east of Luther Pass.
2262
Comment
UCR175700
Spiraea densiflora
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10939
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
UCR190709
Spiraea densiflora
George K. Helmkamp
2007-6-29
12432
Amador
Northern Sierra Nevada Mountains, Sandy Cove picnic area southeast of CA-88 beside the west edge of Silver Lake
2244
Comment
UCR201575
Spiraea densiflora
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13934
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 3.8 miles north of its junction with CA-50
2076
Comment
UCR237284
Spiraea densiflora
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19306
Amador
Northern Sierra Nevada Mountains, Bear River Road, 0.1 mile east of the south end of the dam of Lower Bear River Reservoir
1776
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
UCD114065
Spiraea splendens
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12531
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 2.7 miles south of its junction with CA-88.
2238
Comment
UCR96381
Spirodela polyrhiza
George K. Helmkamp
1996-9-28
1243
Mono
Eastern Sierra Nevada Mtns., Hot Creek at Owens River Road
2134
Comment
UCR99894
Sporobolus contractus
George K. Helmkamp
1997-9-30
2501
Inyo
Sierra Nevada Mtns., Big Pine Creek
2287
Comment
RSA795070
Stachys ajugoides var. rigida
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18412
El Dorado
Forebay Road, 8.1 miles northwest of Pollock Pines, at north side of bridge over the South Fork American River
596
Comment
SD243168
Stachys ajugoides var. rigida
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18412
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.
595
Comment
UCR188864
Stachys ajugoides var. rigida
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12607
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20
1793
Comment
UCR252963
Stachys ajugoides var. rigida
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22140
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 4.8 miles northeast of the town of Sutter Creek
405
Comment
UCR257744
Stachys ajugoides var. rigida
George K. Helmkamp, Amy Barnes, Ann Kerchner
2012-7-22
19444
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
UCR118360
Stachys bullata
George K. Helmkamp, E. A. Helmkamp
1998-6-30
4235
San Luis Obispo
Central Coast Ranges, Irish Hills, SW of San Luis Obispo, Prefumo Cyn., 3.2 mi SW of Los Osos Valley Rd.
198
Comment
UCD125788
Stachys rigida subsp. rivularis
G. K. Helmkamp; E. A. Helmkamp
2007-7-27
12607
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20.
1793
Comment
UCR123340
Stachys rigida var. rigida
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6897
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
SEINET4560541
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2012-1
18557
Sacramento
Sacramento Valley: along Dillard Road, 0.2 mile south of its junction with CA-16/Jackson Rd, SE of Sacramento.
58
Comment
UCR106705
Stellaria media
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3773
Santa Clara
Central Coast Range, Mt.Hamilton Rd (Calif. Hwy 130) east of San Jose; 15.2 mi from the W origin of the Hwy
610
Comment
UCR188824
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2007-3-23
11701
El Dorado
Foothills, Northern Sierra Nevada Mountains, Rattlesnake Bar Road, 1.4 miles west of CA-49 at Pilot Hill
313
Comment
UCR197390
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2008-3-18
13181
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
UCR197821
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2008-5-29
13538
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
UCR253630
Stellaria media
George K. Helmkamp
2014-3-11
22547
Nevada
Sierra Nevada Mountains Foothills, junction of Wolf Road and Lime Kiln Road, W of Hwy 49 & c. 13 miles N of Auburn
518
Comment
UCR206805
Stellaria neglecta
George K. Helmkamp, E. A. Helmkamp
2009-3-19
14415
El Dorado
Sierra Nevada Mtns. Foothills, Rock Creek Road, 2.4 miles east of its junction with CA-193, above South Fork of American River
430
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
UCR234609
Stephanomeria lactucina
George K. Helmkamp, E. A. Helmkamp
2011-8-6
18010
Amador
Northern Sierra Nevada Mountains, Ellis Road, 0.2 miles south of its junction with CA-88
2009
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
UCR242809
Stephanomeria lactucina
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16892
El Dorado
Northern Sierra Nevada Mountains, Mehrten Springs Road, 0.6 mile north of its junction wtih CA-88
2018
Comment
UCR14514
Stephanomeria spinosa
George K. Helmkamp
1974-7-28
s.n.
Mono
Owens Valley, Along U.S. Hwy 395 near Mammoth Creek
2226
Comment
UCR67447
Stephanomeria virgata
George K. Helmkamp
1990-9-23
D- 8
Lassen
20 mi north of Litchfield along US Hwy 395
1437
Comment
SEINET10876081
Stipa lemmonii
George K. Helmkamp, E. A. Helmkamp
2013-7-10
Helmkamp 21015
Amador
Northern Sierra Nevada Mountains; Plasse Road at the southern end of Silver Lake, off Highway 88/Carson Pass Highway (Tragedy Spring 7.5' Quad.).
2191
Comment
RSA0035525
Stipa nelsonii
George K. Helmkamp, Belinda Pesheck
2013-7-14
21051
Alpine
off Blue Lakes Road, 9.4 miles south of CA-88, between a private dirt road and Charity Valley Creek
2409
Comment
UCR92495
Stipa occidentalis
George K. Helmkamp
1996-6-11
1154
San Bernardino
San Bernardino Mountains, Along 2N11 SW of the city of Big Bear Lake, c. 0.5 mile west of [2N10] Mill Creek Road
2256
Comment
UCR249870
Stipa occidentalis var. pubescens
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20908
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail at the junction with Pilliken Road
1825
Comment
CLARK-A1045-1416
Streptanthus tortuosus var. orbiculatus
George K. Helmkamp
1977-8-6
Mariposa
Sierra Nevada Porcupine Flats Campground; dry slope under pines; ; Yosemite Falls 7.5'Q
2590
Comment
UCR193286
Streptanthus tortuosus var. orbiculatus
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12355
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 2.9 miles north of its junction with Hwy CA-20; just north of the South Yuba River
1451
Comment
UCR197812
Streptanthus tortuosus var. orbiculatus
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13760
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
CLARK-A1045-311
Stylocline gnaphaloides
George K. Helmkamp
1978-6-1
#2
Riverside
Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q
487
Comment
UCR123911
Symphoricarpos rotundifolius var. rotundifolius
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6922
Tehama
Sierra Nevada Mountains, Calif. Hwy 36, 2.6 mi west of Mineral, about 33 mi west of Chester, Lake Almanor
1418
Comment
UCR182299
Symphoricarpos rotundifolius var. rotundifolius
George K. Helmkamp, E. A. Helmkamp
2006-10-8
11498
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
CAS-BOT-BC536082
Symphyotrichum foliaceum var. parryi
G. K. Helmkamp; Elizabeth Helmkamp
2013-8-14
22204
Alpine
Northern Sierra Nevada Mtns: Ebbets Pass, along CA-4, 4.8 mi W of jct with CA-89
1923
Comment
SEINET3246021
Symphyotrichum foliaceum var. parryi
G. K. Helmkamp, E. A. Helmkamp
2007-1
12743
Amador
Northern Sierra Nevada Mountains: along Hwy CA-88, 1.0 mile south of the junction with Mormon Emigrant Trail.
2172
Comment
UCD136623
Symphyotrichum spathulatum
G. K. Helmkamp; E. A. Helmkamp
2007-8-16
12743
Amador
Northern Sierra Nevada Mountains: along Hwy CA-88, 1.0 mile south of the junction with Mormon Emigrant Trail.
2172
Comment
UCD136683
Symphyotrichum subulatum var. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13024
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
UCR101053
Tamarix parviflora
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3291
San Bernardino
Mojave Desert, vic. of Harper Dry Lake, 3.8 mi. north of Calif. hwy 58 along Harper Lake Rd.
655
Comment
UCR122572
Tamarix ramosissima
George K. Helmkamp, E. A. Helmkamp
2000-8-29
5982
Riverside
Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea
-67
Comment
UCR237375
Tellima grandiflora
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19188
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 5.6 miles north of its junction with CA-20 and along Washington Creek
787
Comment
SBBG128643
Tellima grandiflora
G. K. Helmkamp, E. A. Helmkamp
2011-6-9
17497
Nevada
Tyler Foote Crossing Rd, 1.6 mi N of its jct with Grizzly Hill Rd, generaly N of N Columbia
930
Comment
UCR14569
Tetracoccus dioicus
George K. Helmkamp
1974-5-16
s.n.
San Diego
Peninsular Range, 5 miles west of Rainbow
Comment
OBI39257
Tetradymia canescens
G. K. Helmkamp
1985-8-20
885 -7
Mono
Along Owens river at Big Springs campground, 7 airline mi NE of Mammoth Lakes, above Arcularius Ranch
2225
Comment
UCR79299
Tetradymia stenolepis
George K. Helmkamp
1993-9-12
23- 15
San Bernardino
San Bernardino Mtns., edge of Burns Canyon
1375
Comment
UCR170416
Teucrium chamaedrys
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10023
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
SD241162
Thalictrum fendleri var. fendleri
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10999
El Dorado
Northern Sierra Nevada Mountains: Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50 (Echo Lake 7.5'Q)
2104
Comment
UCD96805
Thalictrum fendleri var. fendleri
G. K. Helmkamp; E. A. Helmkamp
2007-8-4
12688
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
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
UCR189443
Thalictrum fendleri var. fendleri
George K. Helmkamp, E. A. Helmkamp
2007-8-4
12688
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
UCR51457
Thelypodium crispum
George K. Helmkamp
1987-6-17
s.n.
Mono
Owens River, 0.5 mi downstream from Benton Crossing
2070
Comment
UCR97542
Thelypodium lasiophyllum
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1404
San Luis Obispo
Inner Coast Range, Carrizo Plain; 30.1 mi. NW of Calif. Hwy 166 on Soda Lake Rd., at San Diego Creek Rd near edge of Soda Lake
610
Comment
RSA0039268
Thysanocarpus curvipes
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20338
Placer
Yankee Jim Road, 0.9 mile east of its junction with Canyon Way, 4.4 miles SE (167 ) of Colfax
561
Comment
UCD115930
Thysanocarpus curvipes
G. K. Helmkamp; E. A. Helmkamp
2006-3-26
10105
El Dorado
Northern Sierra Nevada. ENE of Sacramento; Rock Creek Road, 0.9 mile E of CA Highway 193.
396
Comment
UCR171116
Thysanocarpus curvipes
George K. Helmkamp, E. A. Helmkamp
2006-3-26
10105
El Dorado
Northern Sierra Nevada Foothills, ENE of Sacramento; Rock Creek Road, 0.9 mi east of Calif. Highway 193
396
Comment
UCR206879
Thysanocarpus curvipes
George K. Helmkamp, E. A. Helmkamp
2009-3-6
14340
El Dorado
Northern Sierra Nevada Mtns. Foothills, Rock Creek Road, 4.9 miles east of its junction with CA-193 and near Rock Creek
483
Comment
UCR217897
Thysanocarpus curvipes
George K. Helmkamp, E. A. Helmkamp
2010-5-22
16091
El Dorado
Sierra Nevada Mountains Foothills, Perry Creek Road, 0.1 mile south of its junction with Slug Gulch Road, 0.4 mi. northeast of Fairplay
677
Comment
UCR250334
Thysanocarpus curvipes
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20356
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
CLARK-A1045-345
Tidestromia oblongifolia
George K. Helmkamp
1977-11-6
Riverside
Salton Sea Salton Sea State Recreation Area; Salt Creek Campground area; sandy slope between the highway and the Sea, just northwest of Salt Creek; Durmid 7.5'Q
Comment
UCR89558
Tiquilia plicata
George K. Helmkamp
1994-3-10
42- 01
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
OBI82263
Torilis arvensis
George K Helmkampf, Mary Alice Barnes
2013-5-3
20492
Placer
Northern Sierra Nevada Mountains Foothills; Mosquito Ridge Road, 4.7 miles south of Forest Hill Road, 1.8 mi. east (92 deg. ) of Foresthill
829
Comment
RSA0115749
Torilis arvensis
George K. Helmkamp
2014-5-17
22884
Calaveras
Sierra Nevada Mountains Foothills: along CA-26, 2.6 miles northeast of CA-49 at Mokelumne Hill.
518
Comment
RSA614554
Torilis arvensis
George K. Helmkamp, E. Helmkamp, A. Kerchner
1997-6-25
2123
Mendocino
Anderson Valley, CA Hwy 128, NW of Boonville.
91
Comment
UCD128157
Torilis arvensis
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-13
10427 A
Placer
Northern Sierra Nevada Foothills. 2.1 miles south of Auburn along CA Hwy 49.
293
Comment
UCR102549
Torilis arvensis
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-25
2123
Mendocino
North Coast Range, Anderson Valley, Calif. Hwy 128, NW of Boonville
91
Comment
UCR232217
Torilis arvensis
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17218
Placer
Eastern Edge of Sacramento Valley, Camp Far West Road, 0.1 mile west of its junction with McCourtney Road, c. 6.3 mi. NE (67 deg. ) of Wheatland
58
Comment
UCR253250
Torilis arvensis
George K. Helmkamp, Amy Barnes
2013-9-23
22316
Calaveras
Sierra Nevada Mountains Foothills, Utica Powerhouse Road (beside Angel's Creek), 0.6 mile northeast of its junction with CA-4
974
Comment
UCR171183
Tragopogon dubius
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9684
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
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
UCR189763
Tragopogon dubius
George K. Helmkamp, E. A. Helmkamp
2007-8-9
12720
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake; south side of the lake at the entrance to the campground
2131
Comment
SD234541
Tribulus terrestris
G. K. Helmkamp, E. A. Helmkamp
2007-9-30
13044
Sutter
Sacramento Valley: Oak Ave, at its junction with CA-99, about 2.8 miles north of the Feather River crossing.
7
Comment
UCR101138
Trichoptilium incisum
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2956
Imperial
Sonoran (Colorado) Desert, Little Picacho Wash along Picacho Rd, 2.5 mi. south of Picacho State Recreation Area
152
Comment
SEINET238182
Trichostema parishii
George K. Helmkamp
1998-6-27
4084
Riverside
Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring.
1585
Comment
CLARK-A1045-594
Tridens muticus
George K. Helmkamp
1977-5-17
San Bernardino
Mojave Desert Flynn 15'Q
Comment
UCR44830
Tridens muticus
George K. Helmkamp
1986-10-18
s.n.
San Bernardino
Sonoran (Colorado) Desert, Whipple Mountains, along Havasu Palms Road, c. 3 mi NW of Black Meadow Landing Road
396
Comment
RSA0012135
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17648
El Dorado
Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
SD239884
Trientalis latifolia
G. K. Helmkamp, E. A. Helmkamp
2012-6-13
19180
Nevada
Northern Sierra Nevada Mountains Foothills: Washinton Road, 5.6 miles north of ties junction with CA-20 and along Washington Creek (Washington 7.5'Q)
787
Comment
UCR130606
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4848
Monterey
Santa Lucia Mountains, Willow Creek Rd 1.7 mi east of Calif. Hwy 1 north of Gorda
290
Comment
UCR231105
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18272
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
UCR237344
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19180
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 5.6 miles north of its junction with CA-20 and along Washington Creek
787
Comment
UCD107936
Trifolium campestre
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-4
10298
El Dorado
Northern Sierra Nevada. East end of Diamond Springs, 0.1 mile north of the junction of Pleasant Valley Road and Hwy CA-49.
543
Comment
UCR123140
Trifolium campestre
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6766
San Mateo
Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay
6
Comment
SD255752
Trifolium ciliolatum
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20601
Amador
Sierra Nevada Mountains; Shake Ridge Road, 16.7 miles northeast of its junction with E-16 via Fiddletown Road.
982
Comment
UCR230969
Trifolium ciliolatum
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17472
Amador
Northern Sierra Nevada Mountains Foothills, Sutter Creek Road, 3.4 miles west of Volcano
491
Comment
UCD108375
Trifolium depauperatum var. depauperatum
G. K. Helmkamp; E. A. Helmkamp
2007-3-17
11651
Calaveras
Eastern Sacramento Valley. About 1 mile north of Burson on the road to south Comanche Reservoir.
152
Comment
UCR142585
Trifolium depauperatum var. truncatum
George K. Helmkamp, E. A. Helmkamp
2000-4-20
5422
San Luis Obispo
Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo
320
Comment
SD254627
Trifolium dubium
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20641
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26, 0.3 mile northeast of Paloma Road, SW of Mokelumne Hill.
505
Comment
SEINET11261730
Trifolium dubium
George Helmkamp, E. A. Helmkamp
2012-5-15
18973
Calaveras
Northern Sierra Nevada Mountains Foothills: along Murray Creek Road (Murraydale Ln.), 1.4 miles east of Pope Road in San Andreas (San Andreas 7.5' Q.); 0
387
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
UCR235444
Trifolium dubium
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18973
Calaveras
Northern Sierra Nevada Mountains Foothills, along Murray Creek Road (Murraydale Ln.), 1.4 miles east of Pope Road in San Andreas
387
Comment
UCR237309
Trifolium dubium
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18760
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
UCR120534
Trifolium fragiferum
George K. Helmkamp, E. A. Helmkamp
2001-6-3
6807
Solano
San Francisco Bay Region, Hammond Island SE of Fairfield. Grizzly Rd., 7.5 mi SE of entrance to wildlife preserve
6
Comment
UCR15236
Trifolium fragiferum
George K. Helmkamp
1975-7-27
s.n.
San Luis Obispo
Central Coast, Morro Bay at Chorro Creek
Comment
UCR24782
Trifolium fragiferum
George K. Helmkamp
1981-6-21
s.n.
San Luis Obispo
Central Coast, N side of roadside corner where Turri Road ends at Morro Bay, between Morro Bay State Park and Baywood Park
9
Comment
IRVC29192
Trifolium fragiferum
G. K. Helmkamp, E. A. Helmkamp
2004-8-14
8781
San Luis Obispo
junction of Thompson Rd. and Mehlschau Rd., NE of Nipomo Central Coast
107
Comment
SBBG120618
Trifolium glomeratum
G. K. Helmkamp with E. A. Helmkamp
2006-5-6
10302
Amador
St Hwy 49, 0.3 mi S of Drytown
226
Comment
UCR191050
Trifolium glomeratum
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12284
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 1.9 miles south of Mormon Emigrant Trail, at the bridge over Diamond Creek
1143
Comment
UCR206841
Trifolium glomeratum
George K. Helmkamp, E. A. Helmkamp
2009-5-24
14764
El Dorado
Sierra Nevada Mountains Foothills, Sand Ridge Road, 1.3 miles east of the Cosumnes River and CA-49
381
Comment
SD248419
Trifolium hirtum
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20472
Placer
Foothills, northern Sierra Nevada Mountains: Mosquito Ridge Road, 1.1 miles south of Forest Hill Road.
961
Comment
SEINET3245949
Trifolium hirtum
G. K. Helmkamp, E. A. Helmkamp
2010-1
15933
Placer
Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5')
157
Comment
UCR188164
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11881
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
UCR198410
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2008-4-17
13297
Placer
Sacramento Valley / Sierra Nevada Foothills, about 0.2 mile north of CA-193 on Fowler Road, about 6 miles east of Lincoln
93
Comment
UCR208549
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2009-5-11
14677
Placer
Sierra Nevada Mountains Foothills, Driver's Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn
517
Comment
UCR217264
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2010-5-17
16072
El Dorado
Sierra Nevada Mountains Foothills, Pine Hill Road, 0.8 mile above the junction with Bertana Court; edge of Pine Hill Ecological Reserve
610
Comment
UCR218437
Trifolium hirtum
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16455 B
El Dorado
Sierra Nevada Mountains, Silver Fork Road, 1.9 miles south of its junction with US-50 in Kyburz
1473
Comment
UCR14534
Trifolium longipes
George K. Helmkamp
1974-6-9
s.n.
Mono
Owens Valley, Big Springs, on the Owens River
2195
Comment
UCR176492
Trifolium longipes var. nevadense
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11144
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
UCR194964
Trifolium microcephalum
George K. Helmkamp, E. A. Helmkamp
2007-5-18
12027
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road, 4.2 miles southeast of Foresthill
793
Comment
UCR24788
Trifolium monanthum var. grantianum
George K. Helmkamp
1981-7-5
s.n.
Riverside
San Jacinto Mountains, spring alongside the Black Mountain Road, 6 mi from the Banning to Idyllwild Hwy (243)
Comment
SEINET4178611
Trifolium obtusiflorum
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17601
Amador
Northern Sierra Nevada Mountains Foothills: along CA-26, 0.1 mile west of the Calaveras county line at the bridge over the North Fork Mokelumne River.
652
Comment
UCR159838
Trifolium obtusiflorum
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9631
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
UCR127125
Trifolium oliganthum
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3858
Monterey
Reservoir area., San Antonio Rd 0.7 mi north of G-14 (Interlake Rd between San Antonio and Nacimiento reservoirs)
335
Comment
SEINET7248287
Trifolium pratense
George K. Helmkamp, Elizabeth Helmkamp
2013-1
22210
Alpine
Northern Sierra Nevada Mountains: Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89.
1924
Comment
UCD109407
Trifolium variegatum
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10997
El Dorado
Northern Sierra Nevada Mtns: Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50.
2104
Comment
UCR233007
Trifolium variegatum
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18335
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
SD193291
Trifolium willdenovii
G. K. Helmkamp, E. Helmkamp
2005-4-16
9344
Santa Barbara
1.1 mile south of Highway CA 166 on Miranda Pines Road.
526
Comment
SEINET3828543
Trifolium willdenovii
George K. Helmkamp, E. A. Helmkamp
2012-1
18977
Calaveras
Northern Sierra Nevada Mountains Foothills: along Murray Creek Road (Murraydale Ln.), 1.4 miles east of pope Road in San Andreas (San Andreas 7.5')
387
Comment
UCR59785
Trifolium wormskioldii
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
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
UC2044606
Triphysaria eriantha
George K. Helmkamp
2013-3-14
20171
Amador
Central Sierra Nevada Foothills S edge of city of Plymouth; along CA-49, 1.1 miles southwest of its junction with Fiddletown Road. (Amador City 7.5' Q.)
Comment
UCR206357
Triphysaria eriantha subsp. eriantha
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14386
Placer
Sacramento Valley, Ranch House Road, 0.2 mile south of Sheridan
37
Comment
OBI81421
Triphysaria versicolor subsp. faucibarbata
George K. Helmkamp, Amy Barnes
2013-3-28
20297
Placer
Eastern Sacramento Valley; northwest side of junction of Riosa Road and Andressen Road, northeast of Sheridan
36
Comment
UCR114348
Trisetum projectum
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2268
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCR197278
Triteleia hyacinthina
George K. Helmkamp, E. A. Helmkamp
2008-4-17
13295
Placer
Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan
37
Comment
UCR253517
Triteleia hyacinthina
George K. Helmkamp, Amy Barnes
2014-4-7
22699
Sacramento
Sacramento Valley, along CA-104/Twin Cities Rd., 0.7 mile west of the Amador County line
63
Comment
UCR197637
Triteleia ixioides subsp. anilina
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13627
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
UCR206041
Triteleia ixioides subsp. anilina
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14941
Shasta
Southern Cascade Range, Alvord Road, 0.2 mile south of its junction with CA-44, junction is 1.1 miles east of Shingletown
938
Comment
UCR249985
Triteleia ixioides subsp. scabra
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20944
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
UCR107335
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3734
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; beside Guadalupe Reservoir
201
Comment
UCR184968
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11805
Amador
Foothills, Northern Sierra Nevada Mountains, junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione
229
Comment
UCR219272
Triteleia montana
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16542
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2492
Comment
UCR218172
Triticum aestivum
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16174
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 2.8 miles east of the village of Sutter Creek
427
Comment
UCR48048
Tropidocarpum gracile
George K. Helmkamp
1987-3-24
s.n.
San Bernardino
Western Mojave Desert, SW base of Fremont Peak, about 6.5 mi east of US Hwy 395
976
Comment
SD241206
Valerianella locusta
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18978
Calaveras
Northern Sierra Nevada Mountains Foothills: along Murray Creek Road (Murraydale Lane), 1.4 miles east of Pope Road in San Andreas (San Andreas 7.5'Q)
387
Comment
UCD137665
Valerianella locusta
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-9
10341
Amador
Northern Sierra Nevada: Grass Valley Creek, 1.2 miles east of Pine Grove along Hwy CA-88.
762
Comment
UCR123962
Vancouveria hexandra
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6968
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
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
UCR176369
Veratrum californicum var. californicum
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10983
El Dorado
Northern Sierra Nevada Mtns, Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50
2104
Comment
UCR229482
Veratrum californicum var. 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 (50 deg. ) of Emigrant Gap and 0.35 mi. N of I-80
1541
Comment
UCR257898
Verbascum thapsus
George K. Helmkamp, Amy Barnes
2014-8-27
23065
Mono
Northern Sierra Nevada Mountains, Monitor Pass along CA-89, 4.7 miles west of the junction with CA-395
2040
Comment
UCR219118
Verbena litoralis
George K. Helmkamp, E. A. Helmkamp
2009-8-30
15551
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
UCR235409
Verbena litoralis
George K. Helmkamp, E. A. Helmkamp
2011-11-28
18482
Placer
Sacramento Valley, North Brewer Road, 0.2 mile north of Nicolaus Road, 8.7 mi. west of Lincoln
29
Comment
UCR250279
Veronica
George K. Helmkamp
2013-3-14
20170
Amador
Central Sierra Nevada Foothills, S edge of city of Plymouth; along CA-49, 1.1 miles southwest of its junction with Fiddletown Road
319
Comment
SEINET1004400
Veronica arvensis
George K. Helmkamp
2004-1
8256
San Luis Obispo
Central Coast: SE of Oceano along Halcyon Rd., just E of mesa View Dr.
76
Comment
UCD124671
Veronica arvensis
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-27
10240
El Dorado
Northern Sierra Neveda foothills, Junction of French Creek Road and Big Canyon Road, 0.5 mi. south of Frenchtown.
340
Comment
SEINET235764
Veronica persica
G. K. Helmkamp, E. A. Helmkamp
1998-5-14
3631
Fresno
Coast Range: Warthan Creek Canyon along CA Hwy 198 27.6 mi. W of Intersate 5 W of Coalinga.
457
Comment
SD239932
Veronica serpyllifolia subsp. humifusa
Georg K. Helmkamp, E. A. Helmkamp
2011-6-9
17499
Nevada
Northern Sierra Nevada Mountains Foothills: Tyler Foote Crossing Road, 1.6 miles north of its junction with Grizzley Hill Road, generally north of North Columbia.
929
Comment
UCD124901
Veronica serpyllifolia subsp. humifusa
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-10
10698
El Dorado
Northern Sierra Nevada Mountains; Ice House Road at the turnoff to Loon Lake.
1982
Comment
RSA791378
Vicia americana
George K. Helmkamp, E. A. Helmkamp
2012-5-18
19013
El Dorado
Along Mormon Emigrant Trail, 0.1 mi east of Pebble Canyon Road, Southeast of Pollock Pines, South of US Hwy 50.
1495
Comment
UCR206951
Vicia americana
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14823
Yuba
Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit
805
Comment
UCR161680
Vicia benghalensis
George K. Helmkamp, E. A. Helmkamp
2005-5-17
9499
San Luis Obispo
Central Coast, 2.5 mi WNW of San Simeon; along Calif. Highway 1
11
Comment
UCR233055
Vicia benghalensis
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17267
Sutter
Sacramento Valley, Howsley Road at CA-99/El Centro Blvd., 3.3 miles west of Pleasant Grove
30
Comment
SBBG129235
Vicia hirsuta
G. K. Helmkamp, E. A. Helmkamp
2013-5-24
20707
Calaveras
N side of Mokelumne River, W of Big Bar Rd and the CA-49 bridge
198
Comment
SBBG133755
Vicia hirsuta
G. K. Helmkamp, E. A. Helmkamp
2012-5-5
18916
Placer
Lake Clementine Rd, 1.2 mi W of its jct with Foresthill Rd, 0.3 air mi SE (123 deg) of Clementine Dam on the American River
396
Comment
SEINET4691418
Vicia sativa subsp. nigra
George K. Helmkamp, E. A. Helmkamp
2011-1
17106
Calaveras
San Joaquin Valley: along Warren Road near Long Horn Ct., 0.4 mile north of junction with CA-26.
56
Comment
UCR197257
Vicia sativa subsp. nigra
George K. Helmkamp, E. A. Helmkamp
2008-4-11
13268
Calaveras
Sierra Nevada Mountains Foothills, junction of Fricot City Road and Calavaritas Road, southeast of the city of San Andreas
433
Comment
UCR207127
Vicia sativa subsp. nigra
George K. Helmkamp, E. A. Helmkamp
2009-4-4
14490
El Dorado
Sierra Nevada Mountains Foothills, Happy Valley Cut-off, 0.6 mile southeast of its junction with Mt. Aukum Road, c. 1.8 mi due south of Pleasant Valley
591
Comment
UCR250700
Vicia sativa subsp. nigra
George K. Helmkamp, Mary Alice Barnes
2013-5-10
20542
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
UCR131866
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5764
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR173726
Vicia sativa subsp. sativa
George K. Helmkamp, Elizabeth Helmkamp
2006-4-7
10176
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
UCR174001
Vicia sativa subsp. sativa
George K. Helmkamp, Elizabeth Helmkamp
2006-5-9
10336
Amador
Northern Sierra Nevada foothills, Grass Valley Creek, 1.2 miles east of Pine Grove along Calif. Hwy 88
762
Comment
UCR187523
Vicia sativa subsp. sativa
George K. Helmkamp
1996-5-27
1101
San Luis Obispo
Central Coast, Los Osos, northeast of the corner of Martingale Avenue and Buckskin Drive
61
Comment
UCR217920
Vicia sativa subsp. sativa
George K. Helmkamp, Laurel Bezdecheck
2010-5-28
16104
El Dorado
Sierra Nevada Mountains Foothills, Slug Gulch Road, 4.7 miles east of its junction with Perry Creek Road, c. 3.5 air mi. ESE (96 deg. ) of Fair Play
942
Comment
UCR88711
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
1995-6-20
95-2- 27
San Luis Obispo
Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road
400
Comment
UCD108798
Vicia tetrasperma
G. K. Helmkamp; E. A. Helmkamp
2001-6-2
6769
San Mateo
Central CA coast: Purissima Road. E of Half Moon Bay, 1.9 miles E of CA-1.
168
Comment
UCD109122
Vicia villosa subsp. varia
G. K. Helmkamp; E. A. Helmkamp
2007-4-20
11758
El Dorado
Northern Sierra Nevada Mountains: junction of French Creek Road and Lost Creek road just north of Frenchtown.
366
Comment
UCD109124
Vicia villosa subsp. varia
G. K. Helmkamp; E. A. Helmkamp
2007-4-30
11902
El Dorado
Northern Sierra Nevada Mountains: hiking trail leaving from CA-49, 3.4 miles northwest of Placerville.
511
Comment
UCR188022
Vicia villosa subsp. varia
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11902
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
UCR197814
Vicia villosa subsp. varia
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13431
Amador
Sierra Nevada Mountains Foothills, along CA-26, 1.0 mile west of the Calaveras County line
709
Comment
SEINET269268
Vicia villosa subsp. varia
G. Helmkamp, E. Helmkamp
1995-6-20
95- 2 -18
San Luis Obispo
Bear Creek Ranch SE of Los Osos. 6 mi SE of Los Osos on Clark Valley Rd.
396
Comment
SD241030
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2012-4-14
18767
Butte
Northwestern Sacramento Valley: Entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River.
46
Comment
SD247436
Vicia villosa subsp. villosa
George Helmkamp, Elizabeth Helmkamp
2013-8-4
22178
Alpine
Northern Sierra Nevada Mountains: along CA-89, 0.6 mile south of Markleeville (Markleeville 7.5'Q)
1691
Comment
UCR250890
Vicia villosa subsp. villosa
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20678
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
UCR257708
Vicia villosa subsp. villosa
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20438
El Dorado
Sierra Nevada Mountains, Mormon Emigrant Trail, 70 meters northwest of its junction with Park Creek Road, 1 mile NW of Bryants
1311
Comment
UCR131359
Viguiera laciniata
George K. Helmkamp, E. A. Helmkamp
1999-4-16
4672
San Diego
Sweetwater River Drainage, Japatul Rd 1/2 mi SE of Loveland Reservoir.
488
Comment
CLARK-A1045-21
Viguiera reticulata
George K. Helmkamp
1977-4-23
Inyo
Panamint Mountains dry wash south of Emigrant Pass;
1066
Comment
UCR218760
Viola bakeri
George K. Helmkamp, Amy Barnes, Ann Kerchner
2010-7-19
16561
El Dorado
Northern Sierra Nevada Mountains, southeast side of Wright's Lake, 5.8 mi. NE (34 deg. ) of Kyburz
2085
Comment
SEINET3238906
Viola douglasii
George K. Helmkamp, E. A. Helmkamp
2008-4-30
13354
El Dorado
Sierra Nevada Mountains Foothills; along Bear Creek Road, 0.2 mile southeast of its junction with Meadow Brook Road, south of Georgetown.
696
Comment
CAS-BOT-BC520361
Viola lobata var. lobata
George K. Helmkamp; Elizabeth Helmkamp
2013-5-30
20727
Nevada
Northern Sierra Nevada Mountains Foothills: along Hwy CA-20, 1.6 mi NE of Pine Flat Way, N of Scotts Flat Reservoir
1188
Comment
UCR173795
Viola lobata var. lobata
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10598
El Dorado
Northern Sierra Nevada foothills, Mormon Emigrant Trail, 6.0 miles east of its junction with Sly Park Road (Jenkinson Lake)
1055
Comment
UCR173910
Viola macloskeyi
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10755
El Dorado
Northern Sierra Nevada Mountains, 8 miles east of Ice House Road on the road to Wright's Lake
2000
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
SD243218
Viola pinetorum subsp. pinetorum
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16676
Placer
Northern Sierra Nevada Mountains: Robinson Flat campground near the junction of Forest Hill Road and Soda Springs Road, 27 miles northwest of the city of Foresthill.
2040
Comment
UCR184800
Viola pinetorum subsp. pinetorum
George K. Helmkamp, E. A. Helmkamp
2007-5-9
11972
El Dorado
Northern Sierra Nevada Mountains, Granite Springs Road 0.4 mile east of its junction with Ice House Road, junct. about 4 miles southwest of Ice House
1707
Comment
UCR256825
Viola pinetorum subsp. pinetorum
George K. Helmkamp, Amy Barnes
2014-5-14
22872
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 0.1 mile east of Pebble Canyon Drive, 6.25 air mi. SW (217 deg. ) of Kyburz
1832
Comment
SBBG133739
Woodsia oregana
G. K. Helmkamp, E. A. Helmkamp
2011-6-9
17550
Sierra
7.1 mi N of Camptonville along St Hwy 49, ca. 2.5 mi N of the Yuba Co line
808
Comment
UCR218983
Wyethia angustifolia
George K. Helmkamp, Laurel Bezdecheck
2010-6-19
16319
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
UCR134698
Xanthium spinosum
George K. Helmkamp
2003-9-19
8153
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
UCR201544
Xanthium spinosum
George K. Helmkamp, E. A. Helmkamp
2008-10-30
14290
Sacramento
Southern Sacramento Valley, along Highway E13 (Twin Cities Road) 4.4 miles west of its junction with CA-99
5
Comment
UCR219065
Xanthium strumarium
George K. Helmkamp, E. A. Helmkamp
2009-8-28
15541
Sacramento
Northern Sacramento Valley, along Latrobe Road, 3.2 miles west of the El Dorado County line, 1 mi. due north of Rancho Murieta
73
Comment
UCR240727
Xanthium strumarium
George K. Helmkamp, E. A. Helmkamp
2012-10-5
19965
Amador
Northern Sierra Nevada Mountains Foothills, beside Sutter Creek along the Sutter Creek-Volcano Road, 0.6 mile southwest of Meadowlark Lane
421
Comment
UCD121473
Zeltnera exaltata
G. Helmkamp
1993-9-22
34 -16
San Bernardino
Burns Canyon, 6.7 mi up from junction of Pioneer Town and Pipes Cyn Rds.
1524
Comment