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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
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UCR207002
Abies magnifica var. magnifica
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15087
El Dorado
Sierra Nevada Mountains, Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
Comment
UCR161900
Acacia longifolia
George K. Helmkamp, E. A. Helmkamp
2005-2-12
8896
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, 765 Mesa View Drive, along Calif. Highway 1, 0.3 mi south of Mesa View Drive SE of Oceano/Arroyo Grande
79
Comment
UCR130989
Acamptopappus shockleyi
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3526
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
UCD117023
Acer macrophyllum
G. K. Helmkamp; E. A. Helmkamp
2007-9-26
13014
El Dorado
northern Sierra Nevada Mountains, Bonetti Road, 1.1 miles south of its junction with Mormon Emigrant Trail, just east of Jenkinson Lake.
1189
Comment
UCR196841
Acer macrophyllum
George K. Helmkamp, E. A. Helmkamp
2008-6-3
13565
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
SD236155
Acer negundo var. californicum
G. K. Helmkamp, E. A. Helmkamp
2008-10-6
14224
Sutter
Sacramento Valley: Pass Road at the south side of Sutter Buttes, beside Butte Slough, 9.2 miles west of Sutter
32
Comment
UCR106722
Achillea millefolium
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3798
Santa Clara
Central Coast Range, E of San Jose; Kincaid Road 1.1 mi north of Mt. Hamilton Road. ( =Calif. Hwy 130)
793
Comment
UCR170827
Achillea millefolium
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9962
Placer
Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area)
2081
Comment
UCR190556
Achillea millefolium
George K. Helmkamp
2007-6-29
12455
Amador
Northern Sierra Nevada Mountains, south side of CA-88, 0.2 mile west of Carson Spur summit
2421
Comment
UCR205146
Achillea millefolium
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14252
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
SEINET7354054
Achillea millefolium
George K. Helmkamp
2009-1
15004
Shasta
Shingletown, Southern Cascade Range Foothills: Wilson Hill Road 2.4 miles south of its junction with CA-44 in Shingletown (Shingletown 7.5' Q. +- 1000 m.) Oak woodland with many grassy (introduced) openings. Disturbed roadside soil.
857
Comment
UCR240697
Achnatherum nelsonii subsp. dorei
George K. Helmkamp, E. A. Helmkamp
2012-9-1
19748
Calaveras
Northern Sierra Nevada Mountains Foothills, along Winton Road, 0.3 mile east of its junction with Lily Gap Road, 6.4 miles NE (66 deg. ) of West Point
1314
Comment
SEINET3282798
Achnatherum occidentale subsp. californicum
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15451
Placer
Sierra Nevada Mountains; Forest Hill Road at Robinson Flat, 27 miles northeast of the city of Foresthill.
2061
Comment
UCR122348
Achnatherum occidentale subsp. occidentale
George K. Helmkamp, Elizabeth Helmkamp
2000-7-19
5894
Mono
Sierra Nevada Mountains., West side of Lake Mary, southwest of Mammoth Lakes
2652
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
UCR252798
Achnatherum occidentale subsp. pubescens
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22090
El Dorado
Northern Sierra Nevada Mountains, Mehrten Spring Road, 0.5 mile north of CA-88/Carson Pass Hwy
1793
Comment
UCR103321
Achyronychia cooperi
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2651
Riverside
Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd.
101
Comment
CAS-BOT-BC257957
Acmispon americanus var. americanus
George K. Helmkamp; E. A. Helmkamp
2011-8-19
18157
Alpine
Northern Sierra Nevada Mountains: Blue Lakes Road, 2.6 miles north of its junction with Tamarack Road
2436
Comment
SEINET7249210
Acmispon americanus var. americanus
G. K. Helmkamp, E. A. Helmkamp
2012-1
19917
Placer
Northern Sierra Nevada Mountains; junction of Nyack Road and I-80 in the Emigrant Gap area
1652
Comment
UCD104061
Acmispon brachycarpus
G. K. Helmkamp; E. A. Helmkamp
2006-10-10
11520
Nevada
Northern Sierra Mountains Foothills: along Hwy. CA-49, 5.8 miles NNW of Nevada City.
750
Comment
HSC79223
Acmispon heermannii
G. K. Helmkamp
1984-4-29
- 27
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
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
SD237568
Aconogonon davisiae
G. K. Helmkamp
2007-7-7
12512
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 12.0 miles south of its junction with CA-88 (Carson Pass 7.5'Q)
2549
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
SEINET11261908
Actaea rubra
George Helmkamp, E. A. Helmkamp
2011-7-30
17941
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 (Caldor 7.5' Q.); 0
1209
Comment
UCD128528
Adenocaulon bicolor
G. K. Helmkamp; E. A. Helmkamp
2006-8-24
11274
El Dorado
Northern Sierra Nevada Mountains Foothills. Ice House Road, 2.3 miles S of Union Reservoir Road.
1552
Comment
UCR170812
Adenocaulon bicolor
George K. Helmkamp, E. A. Helmkamp
2005-8-9
9781
El Dorado
Northern Sierra Nevada Foothills, WSW of Lake Tahoe; NE of Union Valley Reservoir along Ice House Road
1576
Comment
UCR234185
Adenocaulon bicolor
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16961
El Dorado
Northern Sierra Nevada Mountains, Forest Route 31, 3.9 miles north of its junction with Peavine Ridge Rd and Round Tent Canyon Road
1457
Comment
SD224836
Adenophyllum cooperi
G. K. Helmkamp, E. A. Helmkamp
1998-3-16
2832
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
UCR104820
Adenostoma fasciculatum
George K. Helmkamp
1997-6-21
2063
San Luis Obispo
Central Coast, Questa Ridge north of San Luis Obispo and 0.4 mi west of radio towers
854
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
UCR256486
Adenostoma fasciculatum
George K. Helmkamp, Amy Barnes
2014-5-8
22839
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
UCR123954
Adiantum aleuticum
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6969
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
SEINET3860417
Adiantum jordanii
George K. Helmkamp, Mary Alice Barnes; Mary Jane Ganibe
2010-7-2
16437
Placer
Sierra Nevada Mountains Foothills: Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way Colfax.; 0
415
Comment
UCD137194
Adiantum jordanii
G. K. Helmkamp; E. A. Helmkamp
2006-6-7
10645
El Dorado
Foothills, Northern Sierra Nevada Mountains: hiking trail, 3.4 miles northwest of Placerville along Hwy CA-49.
512
Comment
UCR173827
Adiantum jordanii
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-7
10645
El Dorado
Northern Sierra Nevada foothills, hiking trail, 3.5 miles northwest of Placerville along Calif. Hwy 49
512
Comment
CAS-BOT-BC444016
Aegilops cylindrica
George K. Helmkamp; Elizabeth Helmkamp
2013-6-19
20884
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
SD239518
Aegilops triuncialis
G. K. Helmkamp, E. A. Helmkamp
2011-7-17
17789
Nevada
Northern Sierra Nevada Mountains Foothills: You Bet Road just northeast of its junction with CA-174, 1.25 miles East (91a^z) of Peardale (Chicago Park 7.5'Q)
778
Comment
UCR249890
Aegilops triuncialis
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20639
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26, 0.3 mile northeast of Paloma Road, SW of Mokelumne Hill
505
Comment
UCR174286
Aesculus californica
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-7
10650
El Dorado
Northern Sierra Nevada foothills, hiking trail, 3.5 miles northwest of Placerville along Calif. Hwy 49
512
Comment
SD241067
Agastache urticifolia
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16841
Nevada
Northern Sierra Nevada Mountains: South Fork Yuba River, Forest Route 85 (Fordyce Lake Road) north of Hampshire Rocks Road and I-80, 1 mile NNW (351a^z) of Cisco (Cisco Grove 7.5')
1634
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
RSA0042824
Agoseris glauca var. laciniata
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-19
20885
El Dorado
Mormon Emigrant Trail, 8.3 miles east of its junction with Hwy E-16 at Jenkinsons Lake
1456
Comment
CLARK-A1045-1188
Agoseris glauca var. monticola
George K. Helmkamp
1977-9-1
VB
Alpine
Sierra Nevada dry slope under pines; ; Freel Peak 7.5'Q
2346
Comment
SD148258
Agoseris grandiflora
G. K. Helmkamp, E. A. Helmkamp
2001-5-2
6602
San Luis Obispo
La Panza Range; California Highway 58, 4.5 miles east of Santa Margarita.
334
Comment
UCR129524
Agoseris heterophylla
George K. Helmkamp, E. A. Helmkamp
1998-5-20
4026
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
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
UCR57525
Agrostis exarata
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
SEINET7249201
Agrostis exarata
George K. Helmkamp, Elizabeth Helmkamp
2013-1
Placer
Comment
RSA0011965
Agrostis idahoensis
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18235
El Dorado
Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
SEINET13384097
Agrostis idahoensis
George K. Helmkamp, Amy Barnes
2012-1
19636
Alpine
Northern Sierra Nevada Mountains: north side of CA-88/Carson Pass Hwy, 0.4 mile east of its junction with Kirkwood Meadows Drive
2356
Comment
UCR241359
Agrostis idahoensis
George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp
2012-9-8
19816
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 10.8 miles northeast of Hidden Treasure Road, 0.75 mi. SE of Whisky Hill
1698
Comment
SEINET269157
Agrostis scabra
G. Helmkamp
1994-7-28
105 -2
Mono
Long Valley. Roadside cut along US-395 1.3 mi E of South Landing turnoff to Crowley Lake.
2103
Comment
UCD56648
Agrostis scabra
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11187 A
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road.
2250
Comment
UCD67046
Agrostis scabra
G. K. Helmkamp; E. A. Helmkamp
2006-8-24
11276
El Dorado
Northern Sierra Nevada Mountains: Ice House Road, 2.3 miles south of Union Reservoir Road.
1552
Comment
UCR176474
Agrostis scabra
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11187
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road
2250
Comment
UCR252985
Agrostis scabra
George K. Helmkamp, Amy Barnes
2013-9-23
22322
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
CAS-BOT-BC444035
Agrostis stolonifera
George K. Helmkamp; E. A. Helmkamp
2007-8-16
12770
Amador
Northern Sierra Nevada Mountains: along Hwy CA-88, 0.9 mile northeast of the junction with Bear River Reservoir.
632
Comment
UCR240952
Agrostis stolonifera
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19904
Placer
Northern Sierra Nevada Mountains, Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mi. south of Blue Canyon-Nyack Airport
1473
Comment
UCR252988
Agrostis stolonifera
George K. Helmkamp, Amy Barnes
2013-9-23
22325
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
SEINET3817927
Agrostis variabilis
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16958
El Dorado
Northern Sierra Nevada Foothills, Forest Route 31, 3.4 miles north of its junction with Peavine Ridge Road and Round Tent Canyon Road (Riverton 7.5' Q.
1463
Comment
SEINET4137606
Agrostis variabilis
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16909
Amador
Northern Sierra Nevada Mountains: Dufrene Road 0.7 mile east of junction with CA-88, north of Lower Bear River Reservoir
2044
Comment
CAS-BOT-BC334215
Aira caryophyllea
George K. Helmkamp; Laurel Bezdecheck
2010-5-29
16121
El Dorado
Sierra Nevada Mountains foothills: Slug Gulch Road, 4.7 rd miles E of its junction with Perry Creek road, air 3.9 mi ESE (90 deg. ) of Fair Play
1082
Comment
SD212419
Aira caryophyllea
G. K. Helmkamp, Elizabeth Helmkamp
2006-5-1
10283
El Dorado
Northern Sierra Nevada foothills; corner of Pleasant Valley Road and Patterson Drive; west end of Diamond Sprin gs.
537
Comment
SEINET3817926
Aira caryophyllea
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17166
Yuba
Sacramento Valley, Along Camp Beale Highway/Spenceville Rd., c. 1.75 miles northeast of Wheatland (Wheatland 7.5' Q.
44
Comment
UCD55731
Aira caryophyllea
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-1
10283
El Dorado
Northern Sierra Neveda foothills, corner of Pleasant Valley Road and Patterson Drive; W end of Diamond Springs.
536
Comment
UCR107263
Aira caryophyllea
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3693
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
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
UCR123167
Allium amplectens
George K. Helmkamp, E. A. Helmkamp
2002-4-19
7469
San Luis Obispo
Central Coast, 3.2 mi north of Piedras Blancas Lighthouse along CA Hwy 1
15
Comment
UCR256660
Allium amplectens
George K. Helmkamp, Elizabeth Helmkamp
2013-5-30
20721
Nevada
Northern Sierra Nevada Mountains Foothills, along Hwy CA-20, 3.5 miles west of CA-49 in Grass Valley
623
Comment
UCR176391
Allium campanulatum
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11176
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road
2250
Comment
UCR197036
Allium campanulatum
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13820
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR249991
Allium campanulatum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20920
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, north side of its junction with Mormon Emigrant Trail
2188
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
CLARK-A1045-567
Allium monticola
George K. Helmkamp
1979-6-5
#2
San Bernardino
San Bernardino Mountains dry slope; ; Keller Peak 7.5'Q
Comment
UCR160747
Allium peninsulare var. peninsulare
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6656 A
Kern
Temblor Range, [dirt road 0.45 km south of] Calif. Hwy 58, very near the San Luis Obispo Co. line
427
Comment
UCR179348
Allium validum
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11378
El Dorado
Northern Sierra Nevada Mountains, Along Calif. Hwy 89, 1.2 miles west of the Alpine County line. General area of Luther Pass and Grass Lake
2363
Comment
UCR88339
Allium validum
George K. Helmkamp, E. A. Helmkamp
1995-6-23
95- 6 -4
Alpine
Sierra Nevada Mtns, Calif. Hwy 89, 6.0 mi east of the junction with Calif. Hwy 4 on the way to Monitor Pass. Slope above Monitor Creek
2200
Comment
CLARK-A1045-195
Allophyllum divaricatum
George K. Helmkamp
1978-6-6
San Bernardino
San Bernardino Mountains San Bernardino N 7.5'Q
Comment
CLARK-A1045-196
Allophyllum divaricatum
George K. Helmkamp
1978-6-6
San Bernardino
San Bernardino Mountains San Bernardino N 7.5'Q
Comment
UCR208334
Allophyllum divaricatum
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14544
El Dorado
Sierra Nevada Mountains Foothills, Rock Creek Road, 4.2 miles west of the bridge over Rock Creek
401
Comment
UCR233672
Allophyllum divaricatum
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17954
Amador
Northern Sierra Nevada Mountains, Ellis Road, 2.1 miles south of its junction with CA-88
1794
Comment
SEINET2442069
Allophyllum gilioides
George K. Helmkamp
2007-7-7
12468
El Dorado
Northern Sierra Nevada Mountains: along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area.; 0
2033
Comment
UCR219024
Allophyllum gilioides
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16350
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
RSA0012228
Allophyllum integrifolium
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17834
Tuolumne
Forest Route 5N14, 1.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1143
Comment
SD239870
Allophyllum integrifolium
G. K. Helmkamp, E. A. Helmkamp
2011-8-6
17952
Amador
Northern Sierra Nevada Mountains: Ellis Road, 2.1 miles south of its junction with CA-88 (Peddler Hill 7.5'Q)
1794
Comment
UCR14432
Allophyllum integrifolium
George K. Helmkamp
1974-6-22
s.n.
San Bernardino
San Bernardino Mtns, Keller Peak Road
2134
Comment
UCD109967
Alnus incana subsp. tenuifolia
G. K. Helmkamp; E. A. Helmkamp
2007-5-31
12248
El Dorado
Northern Sierra Nevada Mountains; Forestry Route 42, 4.3 miles west of its junction with Wright's Lake Road, generally between Wright's Lake and Ice House Reservoir.
1753
Comment
UCR170982
Alnus rhombifolia
George K. Helmkamp, E. A. Helmkamp
2006-1-16
10052
El Dorado
Northern Sierra Nevada Foothills, Corner of Pleasant Valley Road and Patterson Drive, at the W end of Diamond Springs
537
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
UCR200938
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2008-9-30
14182
Calaveras
Foothills, northern Sierra Nevada Mountains, along CA-49, 1.9 miles south of Mokelumne Hill
381
Comment
UCR232615
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18374 B
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
SD237281
Amaranthus retroflexus
G. K. Helmkamp, E. A. Helmkamp
2009-8-30
15546
Sutter
Sacramento Valley: along Nicolaus Ave., 2.2 miles northwest of the Placer Co. line, 4.4 miles ENE (86a^z) of Nicolaus.
7
Comment
UCR219188
Amaranthus retroflexus
George K. Helmkamp, E. A. Helmkamp
2009-9-22
15640
Amador
Sierra Nevada Mountains Foothills, junction of Shenandoah Road (CA-16) and Steiner Road, southwest of River Pines
750
Comment
UCR102611
Ambrosia acanthicarpa
George K. Helmkamp, E. A. Helmkamp
1997-9-12
2415
Mono
River Springs Lake, 3.1 mi. NE of Calif. hwy 120 on River Springs Rd.
1997
Comment
UCR202681
Ambrosia acanthicarpa
George K. Helmkamp, E. A. Helmkamp
2008-9-22
14149
Alpine
Northern Sierra Nevada Mountains, Carson River Road running about parallel to CA-88, 2.2 miles east of its western junction with CA-88
1619
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
RSA492927
Ambrosia eriocentra
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
UCR173982
Amelanchier alnifolia var. pumila
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10686
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 10.6 miles south of Wentworth Springs Road (just south of the Jones Fork of Silver Creek)
1509
Comment
SD232790
Amelanchier utahensis
G. Helmkamp
1994-5-23
98 2
Alpine
At the junction of highways US-4 and US-89. Along the east fork of the Carson River. Aspencottonwood area.
1768
Comment
UCR161222
Amsinckia eastwoodiae
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9030
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
SEINET13276745
Amsinckia intermedia
George K. Helmkamp
2014-1
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 (Smartsville 7.5' Q.)
264
Comment
UCR233158B
Amsinckia intermedia
George K. Helmkamp, E. A. Helmkamp
2010-3-20
15751
El Dorado
Sierra Nevada Mountains Foothills, Marshall Road, 0.1 mile NE of its junction with CA-49
226
Comment
UCR189469
Amsinckia retrorsa
George K. Helmkamp, E. A. Helmkamp
2007-3-17
11658
Calaveras
Eastern Sacramento Valley, Hwy CA-12 at Lime Creek road, east of Valley Springs
238
Comment
UCR130684
Amsinckia spectabilis
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4839
Monterey
Santa Lucia Mtns./Central Coast, Willow Creek, north of Gorda beside Calif. Hwy 1
30
Comment
UCR122896
Amsinckia tessellata
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6651
Kern
Temblor Range, [dirt road 0.45 km south of] Calif. Hwy 58, very near the San Luis Obispo Co. line
427
Comment
UCR30073
Amsinckia tessellata
George K. Helmkamp
1983-4-5
483 17
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
UCR122949
Amsinckia tessellata var. tessellata
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6458
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
UCR123935
Amsinckia tessellata var. tessellata
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6549
Kern
West end San Joaquin Valley, Como Rd., 1.9 mi SE of Calif. Hwy 58, NW of Taft
671
Comment
RSA0081178
Anagallis arvensis
George K. Helmkamp, E. A. Helmkamp
2006-10-6
11479
Amador
Along Calif. Hwy 49, 1.1 miles south of Plymouth.
314
Comment
UCR218197
Anagallis arvensis
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16168
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 1.6 miles east of the village of Sutter Creek
412
Comment
CAS-BOT-BC249053
Anaphalis margaritacea
George K. Helmkamp; E. A. Helmkamp
2010-8-14
16792
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
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
SD237298
Anaphalis margaritacea
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15258
El Dorado
Sierra Nevada Mountains: Wrights Lake Road, 4.1 miles north of its junction with US-50 and at the north side of Lyons Creek crossing.
2015
Comment
UCD127126
Angelica breweri
G. 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, Wood's Creek.
2509
Comment
UCR121932
Antennaria rosea
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5934
Inyo
Sierra Nevada Mountains, Mosquito Flat, 0.9 mi south of Rock Creek Lake, beside Rock Creek
3140
Comment
UCR59790
Antennaria rosea
George K. Helmkamp
1989-7-31
s.n.
Mono
Sierra Nevada Mtns, just south of Mammoth Village [in Mammoth Lakes] and at the edge of Snow Creek [Golf Course]
2439
Comment
UCR209554
Antennaria rosea subsp. rosea
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15394
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
UCR234571
Antennaria rosea subsp. rosea
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18130
Alpine
Northern Sierra Nevada Mountains, northeast side of Lower Blue Lake, above campground
2500
Comment
CDA36213
Anthemis cotula
G. K. Helmkamp, E. A. Helmkamp
2009-5-2
14724
Yolo
Western Sacramento Valley; Capay Valley; along CA Hwy 16, 1.5 miles west of Capay.
Comment
CAS-BOT-BC249065
Anthriscus caucalis
George K. Helmkamp; E. A. Helmkamp
2012-4-14
18765
Butte
Northwestern Sacramento Valley: entrance to Oroville Wildlife Area, 0.2 mile west of CA-70, near the Feather River
46
Comment
UCR14945
Anthriscus caucalis
George K. Helmkamp
1976-5-16
s.n.
San Luis Obispo
Central Coast, Hwy 1, Avila Beach turnoff
Comment
CLARK-A1045-408
Antirrhinum multiflorum
George K. Helmkamp
1979-6-1
San Bernardino
San Bernardino Mountains 1.5 mile west of City Creek Ranger Station; roadside cut; Harrison Mt. 7.5'Q
Comment
SBBG128998
Apocynum androsaemifolium
G. K. Helmkamp, E. A. Helmkamp
2012-7-14
19402
Amador
edge of Martin Meadow along CA-88 (Carson Pass Hwy), 2.2 mi N of Silver Lake
2317
Comment
RSA0011959
Aquilegia formosa
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18249
El Dorado
Mormon Emigrant Trail, 22.6 miles southeast of Jenkinson's Lake, between Silver Fork Road and Hwy 88, 0.2 mi. NNE (23deg.) of Alder Hill.
2274
Comment
RSA0125861
Arabidopsis thaliana
George K. Helmkamp, Mary Jane Ganive, Mary Alice Barnes
2010-6-15
16305
El Dorado
Mormon Emigrant Trail, 14 miles southeast of junction with Sly Park Road at Jenkinson Lake
1662
Comment
SEINET3246133
Arabidopsis thaliana
G. K. Helmkamp, E. A. Helmkamp
2007-1
11868
El Dorado
Foothills, Northern Sierra Nevada Mountains: junction of Ice House Road, about 2 miles northwest of US-50
1029
Comment
UCR207143
Arabidopsis thaliana
George K. Helmkamp, E. A. Helmkamp
2009-4-4
14503
El Dorado
Sierra Nevada Mountains Foothills, Sand Ridge Road, 2.3 miles west of Bucks Bar Road
654
Comment
UCR224233
Arabidopsis thaliana
George K. Helmkamp, E. A. Helmkamp
2010-4-23
15929
El Dorado
Sierra Nevada Mountains Foothills, Salmon Falls Road at the Salmon Falls crossing of the American River
157
Comment
RSA0037293
Arabis
George K. Helmkamp, Belinda Pesheck
2013-7-14
21038
Alpine
off Blue Lakes Road, 9.4 miles south of CA-88, between a private dirt road and Charity Valley Creek
2409
Comment
UCR248670
Arabis
George K. Helmkamp, Belinda Pesheck
2013-7-14
21038
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
UCR123398
Arabis divaricarpa
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4381
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
Comment
UCR209687
Arabis glabra
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15385
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
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
UCR123399
Arabis holboellii var. pinetorum
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4383
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
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
UCR110993
Arabis perennans
George K. Helmkamp
1998-6-27
4112
Riverside
Santa Rosa Mtns., 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), below Mountain Home Spring
1799
Comment
UCR14650
Arabis perennans
George K. Helmkamp
1975-6-6
s.n.
San Bernardino
Eastern Mojave Desert, Clark Mountain [area, Mescal Range], Mountain Pass, 0.5 mi south of Interstate 15
1463
Comment
UCD117485
Arbutus menziesii
G. K. Helmkamp; E. A. Helmkamp
2007-3-31
11728
Nevada
Northern Sierra Nevada Mountains: Just south of the crossing of CA-49 over the South Yuba River.
390
Comment
CAS-BOT-BC409997
Arceuthobium campylopodum
L. Helmkamp; G. Helmkamp
1999-11-16
5 -1
Riverside
San Jacinto Mountains, at the W end of Garner Valley, 0.5 miles E of CA-74 on Apple Canyon Road, just NE of Lake Hemet
1341
Comment
SD236438
Arceuthobium campylopodum
G. K. Helmkamp, E. A. Helmkamp
2008-7-22
13904
Alpine
Eastern Sierra Nevada Mountains: junction of CA-88/89 and entrance to Crystal Springs campground, 1.2 miles southwest of Woodfords
1829
Comment
UCR241358
Arctostaphylos manzanita
George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp
2012-9-8
19817
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 10.8 miles northeast of Hidden Treasure Road, 0.75 mi. SE of Whisky Hill
1698
Comment
UCR190562
Arctostaphylos nevadensis
George K. Helmkamp
2007-6-29
12415
Amador
Northern Sierra Nevada Mountains, Shot Rock Vista picnic area along CA-88, 0.9 miles east of its junction with Mormon Emigrant Trail
2329
Comment
RSA710338
Arctostaphylos rudis
George K. Helmkamp
2004-2-19
8304
San Luis Obispo
Central Coast: NW of Nipomo, Pomeroy Road, 0.2 mile N of Willow Road.
91
Comment
SD236274
Arctostaphylos viscida subsp. mariposa
G. K. Helmkamp, E. A. Helmkamp
2008-3-18
13192
Calaveras
Sierra Nevada Mountains Foothills: Jesus Maria Road, 3.2 miles southeast of its junction with CA-26; beside Jesus Maria Creek.
319
Comment
UCR171190
Arctostaphylos viscida subsp. mariposa
George K. Helmkamp, E. A. Helmkamp
2006-3-26
10117
El Dorado
Northern Sierra Nevada Foothills, ENE of Sacramento; Rock Creek Road at Jaybird Creek, 5.1 mi east of Calif. Highway 193 (generally ENE of Chili Bar)
590
Comment
UCR197261
Arctostaphylos viscida subsp. mariposa
George K. Helmkamp, E. A. Helmkamp
2008-3-18
13192
Calaveras
Sierra Nevada Mountains Foothills, Jesus Maria Road, 3.2 miles southeast of its junction with CA-26; beside Jesus Maria Creek
319
Comment
UCR206670
Arctostaphylos viscida subsp. viscida
George K. Helmkamp, E. A. Helmkamp
2009-3-5
14329
El Dorado
Northern Sierra Nevada Mtns. Foothills, Happy Valley Cutoff road, 0.1 mile east of its junction with Mt. Aukum Road, south of Pleasant Valley
617
Comment
UCR237555
Arctostaphylos viscida subsp. viscida
George K. Helmkamp, E. A. Helmkamp
2012-4-24
18827
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Bear Creek Road and Meadow Brook Road, 2.5 mi. NE (59 deg. ) of Garden Valley
686
Comment
UCR161217
Arenaria douglasii
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9033
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
UCR178747
Arenaria kingii var. glabrescens
George K. Helmkamp, E. A. Helmkamp
2006-8-30
11299
Alpine
Northern Sierra Nevada Mountains, Woods Lake, south of Calif. Hwy 88 and generally SE of Caples Lake
2521
Comment
CLARK-A1045-535
Arenaria nuttallii subsp. gracilis
George K. Helmkamp
1979-6-22
San Bernardino
San Bernardino Mountains along Forest Service road 3N08 at junction with 3N66Y; sagebrush scrub opening in yellow pine forest; ; Big Bear City 7.5'Q
2285
Comment
UCR191073
Arenaria serpyllifolia
George K. Helmkamp, E. A. Helmkamp
2007-5-23
12056
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 11.1 miles northeast of Foresthill
1463
Comment
SD144132
Aristida californica var. californica
G. K. Helmkamp, E. Helmkamp
1998-1-24
2574
Imperial
Between Hwy I-8 and the All-American Canal, across from the Brock Research Center (ca. 3 miles east of the junction of Hwy CA-98 with Hwy I-8)
46
Comment
UCD129156
Arnica mollis
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11131
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
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
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
RSA0012017
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16826
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
SD240838
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18408
El Dorado
Northern Sierra Nevada Mountains Foothills: Forebay Road, 9.1 miles northwest of Pollock Pines at the south side of the bridge over the South Fork American River (Pollock Pines 7.5'Q)
611
Comment
UCD129310
Artemisia douglasiana
G. K. Helmkamp; E. A. Helmkamp
2006-9-12
11394
Alpine
Northern Sierra Nevada Mountains: west end of Caples Lake at a dam; alongside Hwy CA-88.
2335
Comment
UCR188558
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13020
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 2.3 miles east of Jenkinson Lake
1226
Comment
UCR200920
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2008-9-9
14077
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
UCR219650
Artemisia douglasiana
George K. Helmkamp, E. A. Helmkamp
2009-11-3
15720
El Dorado
Sierra Nevada Mountains Foothills, at a bridge on Grizzly Flat Road 8.0 miles east of its junction with Hwy E-16 at Somerset
925
Comment
UCR176278
Artemisia ludoviciana subsp. incompta
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11130
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
UCR240970
Artemisia ludoviciana subsp. ludoviciana
George K. Helmkamp, E. A. Helmkamp
2012-10-5
19967
Amador
Northern Sierra Nevada Mountains Foothills, beside Sutter Creek along the Sutter Creek-Volcano Road, 0.6 mile southwest of Meadowlark Lane
421
Comment
UCD129377
Artemisia tridentata subsp. vaseyana
G. K. Helmkamp; E. A. Helmkamp
2006-9-12
11392
Alpine
Northern Sierra Nevada Mountains; along Hwy 88 at the crossing over the West Fork of the Carson River.
2363
Comment
UCR233624
Asclepias cordifolia
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17507
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
UCR202644
Asclepias fascicularis
George K. Helmkamp
1990-9-3
s.n.
San Luis Obispo
Central Coast, north of the bay at Avila Beach
8
Comment
UCR241348
Asclepias fascicularis
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19872
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
UCR178733
Aster alpigenus var. andersonii
George K. Helmkamp, E. A. Helmkamp
2006-8-30
11295
Alpine
Northern Sierra Nevada Mountains, Woods Lake, south of Calif. Hwy 88 and generally SE of Caples Lake
2521
Comment
UCR252989
Aster alpigenus var. andersonii
George K. Helmkamp, Amy Barnes
2013-9-23
22326
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
UCR230756
Aster eatonii
George K. Helmkamp, E. A. Helmkamp
2010-10-1
17000
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 0.3 mile southwest of its junction with Quartz Mountain Road, 4.25 mi. NE (47 deg. ) of Sutter Creek
527
Comment
SEINET13203146
Aster foliaceus var. parryi
George K. Helmkamp, Elizabeth Helmkamp
2013-1
22204
Alpine
Northern Sierra Nevada Mountains: Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89 (Ebbets Pass 7.5' Q.)
1923
Comment
UCR257205
Aster foliaceus var. parryi
George K. Helmkamp, Elizabeth Helmkamp
2013-9-7
22277
Amador
Northern Sierra Nevada Mountains, Tragedy Spring Road, 0.17 mi. above junction with Hwy 88/Carson Pass Rd., at the entrance path to the spring
2425
Comment
UCR170240
Aster occidentalis var. occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9913
El Dorado
Northern Sierra Nevada Foothills, Wright's Lake Road (Forest Road 4) c. 4.0 road miles north of US-50, NE of Kyburz
2061
Comment
UCR176466
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11073
El Dorado
Northern Sierra Nevada Mountains, along Wright's Lake Road (Forestry Route 4) at Lyons Creek, about 4 miles north of Hwy US-50
1864
Comment
UCR196986
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13866
Alpine
Eastern Sierra Nevada Mountains, Blue Lake Road just southeast of its junction with CA-88
2180
Comment
UCR232628
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18246
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
UCR233001
Aster occidentalis var. occidentalis
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18331
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
UCR248375
Aster occidentalis var. occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2013-7-10
21016
Amador
Northern Sierra Nevada Mountains, Plasse Road at the southern end of Silver Lake, off Hwy 88/Carson Pass Hwy
2191
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
UCR258118
Aster occidentalis var. occidentalis
George K. Helmkamp, Amy Barnes
2014-8-11
23010
El Dorado
Northern Sierra Nevada Mountains, north of Union Valley Reservoir, junction of Robbs Peak Road and Ice House Road
1655
Comment
UCR258417
Aster occidentalis var. occidentalis
George K. Helmkamp, Amy Barnes
2014-8-11
22989
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 1.7 miles south of Crystal Basin Information Station
1610
Comment
UCR258989
Aster occidentalis var. occidentalis
George K. Helmkamp, Amy Barnes
2014-9-16
23073
Alpine
Eastern Sierra Nevada Mountains, Paynesville, junction of Chambers Lane and Diamond Valley Road along West Fork Carson River
1593
Comment
UCR179334
Aster oregonensis
George K. Helmkamp, E. A. Helmkamp
2006-8-24
11291
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 3.8 miles north of Wentworth Springs Road
1616
Comment
UCR190231
Aster subulatus
George 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
UC2015627
Astragalus agrestis
G. Helmkamp
1994-5-23
99 -2
Mono
Along highway US-89, 1 mile south of the Alpine County line.
Comment
UCR242343
Astragalus bolanderi
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16817
El Dorado
Northern Sierra Nevada Mountains, near abandoned Iron Mountain ski resort, road spur parallel to Mormon Emigrant Trail about 0.2 mile west of its junction with CA-88
2238
Comment
CLARK-A1045-1216
Astragalus crotalariae
George K. Helmkamp
1977-1-22
Imperial
Salton Sea roadside ditch along State Highway 86 at Riverside County line; Oasis 7.5'Q
Comment
CDA26657
Astragalus douglasii var. douglasii
G. K. Helmkamp, E. A. Helmkamp
1998-6-29
4180
Kern
Tehachapi Mtns.; Tehachapi Mountain Park, 4.2 miles SW of Highline Rd. along Water Canyon Rd.
Comment
UCR130223
Astragalus douglasii var. douglasii
George K. Helmkamp, E. A. Helmkamp
1998-6-27
4120
Riverside
Santa Rosa Mountains., Santa Rosa Mountain Road, 5.8 miles southeast of Calif. Hwy 74
1799
Comment
RSA615628
Astragalus inyoensis
George K. Helmkamp
1997-9-30
2463
Inyo
6.1 mi. N of CA hwy 168 on White Mtn Rd.
2622
Comment
CLARK-A1045-12
Astragalus layneae
George K. Helmkamp
1977-4-21
San Bernardino
Adelanto east of US Highway 395, 2 miles north of Adelanto; Creosote Bush scrub; ; Adelanto 7.5'Q
883
Comment
SD144467
Astragalus lentiginosus
G. K. Helmkamp, E. A. Helmkamp
1997-3-7
1372
Kern
SE of Maricopa along Western Minerals Rd near Bitter Creek
427
Comment
UCR129554
Astragalus lentiginosus var. ineptus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6820
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
CLARK-A1045-1236
Astragalus malacus
George K. Helmkamp
1978-5-30
Mono
Sierra Nevada near Conway Summit, along US Highway 395; Lundy 7.5'Q
Comment
UCR134417
Astragalus trichopodus var. phoxus
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6577
San Luis Obispo
Irish Hills, Clark Valley Rd., 3.8 mi south of Los Osos Valley Rd., east of Los Osos
213
Comment
UCR140455
Astragalus trichopodus var. phoxus
George K. Helmkamp
2004-4-21
8486
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
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
UCR173490
Athysanus pusillus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-29
10270
El Dorado
Northern Sierra Nevada Foothills, Rock Creek Road, 5.7 mi. east of Calif. Hwy 193, N of the South Fork of the American River
427
Comment
SD143952
Atriplex
G. Helmkamp, E. Helmkamp
1997-9-10
2349
Mono
River Springs Lakes, 3.1 miles northeast of highway California 120 on River Springs Road.
2285
Comment
RSA746968
Atriplex canescens subsp. canescens
George K. Helmkamp, E. Helmkamp
2008-10-30
14303
Amador
along CA-49, 0.2 mile south of Plymouth
314
Comment
UCR194979
Atriplex canescens subsp. canescens
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13102
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.6 mile south of Plymouth
314
Comment
UCR219001
Atriplex canescens subsp. canescens
George K. Helmkamp, E. A. Helmkamp
2009-10-11
15678
Amador
Sierra Nevada Mountains Foothills, along Hwy CA-49, 1.0 mile south of Plymouth, 1.3 mi. north of Drytown
303
Comment
UCR253814
Atriplex micrantha
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20101
Placer
Sacramento Valley, South Dowd Road, 0.1 mile south of its junction with Moore Road, southwest of Lincoln
34
Comment
SEINET13262656
Avena fatua
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20212
Calaveras
Milton, Jenny Lind Road (Milton Rd.), 7.4 miles south of its junction with CA-26
120
Comment
UCR133223
Baccharis brachyphylla
George K. Helmkamp
1993-9-18
29- 19
San Bernardino
Mojave Desert, Morongo Valley, canyon at W end of Palo Verde Road, l mi west of Juniper Ave, between Big Morongo Canyon and Dry Morongo Canyon
1070
Comment
UCR106435
Baccharis glutinosa
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2187
Mendocino
North Coast, Big River, 0.2 mi east of US-1, south of Mendocino
6
Comment
SD243073
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2010-10-6
17014
Calaveras
Northern Sierra Nevada Mountains Foothills: along CA-26 (Stephen P. Teale Hwy) at the crossing of North Fork Mokelumne River (Rail Road Flat 7.5'Q)
801
Comment
UCR170428
Baccharis pilularis
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10030
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
UCR201551
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14260
Colusa
Sacramento Valley, along River Road (generally following the Sacramento River), 1.1 miles north of Colusa
18
Comment
UCR235136
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2011-11-20
18467
El Dorado
Northern Sierra Nevada Mountains Foothills, Salmon Falls Road, 1.6 miles south of the bridge of the American River
180
Comment
UCR241265
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2012-10-3
19950
Sacramento
Southeast Sacramento Valley, Sacramento State Aquatic Center south of the American River, 0.1 mile east of Hazel Ave.
49
Comment
UCR161689
Baccharis salicifolia
George K. Helmkamp, E. A. Helmkamp
2005-2-24
8962
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
RSA489398
Baileya pauciradiata
George K. Helmkamp
1988-2-28
s.n.
Imperial
just N of Signal Mts, S of Hwy deserticola.
30
Comment
SEINET2055879
Baileya pleniradiata
G. K. Helmkamp, E. A. Helmkamp
2001-9-16
7174
Riverside
Willcox Playa, east edge.: Blue Sky Road. O.2 mile nietheast of AZ 186 {southwest of Willcox}
1295
Comment Read comments May 3 2014
SD148199
Barbarea orthoceras
G. K. Helmkamp, E. A. Helmkamp
2001-5-30
6734
Santa Clara
Gilroy Hot Springs Road, 0.5 mile south of springs at Coyote Creek.
182
Comment
UCD114275
Barbarea orthoceras
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-25
10217
El Dorado
Northern Sierra Nevada: E of Sacramento, SW of Placerville. Forni road between US Hwy 50 and Diamond Springs, at Weber Creek.
488
Comment
UCR250688
Barbarea orthoceras
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20349
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
UCR250689
Barbarea orthoceras
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20353
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
UCSB46688
Barbarea orthoceras
Helmkamp, G.
1973-06
Mono
Owens River at Big Springs
2286
Comment
RSA0093482
Bidens frondosa
George K. Helmkamp, E. A. Helmkamp
2012-10-8
19999
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
SD212472
Bidens frondosa
G. K. Helmkamp, Elizabeth Helmkamp
2005-9-9
9848
El Dorado
Northern Sierra Nevada Foothills; east of Sacramento, Squaw Hollow area at junction of Hank's Exchange Road and Ranch Road, 0.9 mile south of Pleasant Valley Road.
683
Comment
SEINET3246130
Bidens frondosa
G. K. Helmkamp, E. A. Helmkamp
2009-1
15605
El Dorado
Sierra Nevada Mountains Foothills: Lake Oaks Mobile Home Park, Diamond Springs; 0.2 mile south of the junction of Patterson Drive and CA-49/Pleasant Valley Road.
Comment
UCR258190
Bidens frondosa
George K. Helmkamp, Elizabeth Helmkamp
2012-10-16
20024
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
UCR91827
Bloomeria crocea var. aurea
George K. Helmkamp
1996-5-24
1010
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
UCR207435
Botrychium multifidum
George K. Helmkamp, Amy Barnes
2009-7-8
15156
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
UCR103311
Bouteloua aristidoides var. aristidoides
George K. Helmkamp
1998-4-4
3162
Riverside
Sonoran (Colorado) Desert, 7.1 miles north of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station
305
Comment
SD224794
Bouteloua barbata var. barbata
G. K. Helmkamp
1997-9-30
2488
Inyo
East side of White Mnts; alkaline flat running into sagebrush and rocky slopes.
1707
Comment
UCR200862
Boykinia major
George K. Helmkamp, E. A. Helmkamp
2008-9-15
14115
Placer
Northern Sierra Nevada Mountains, along Foresthill Road 20 miles northeast of the city of Forest Hill
1707
Comment
UCR122136
Brachypodium distachyon
George K. Helmkamp
2002-4-21
7475
San Luis Obispo
Central Coast, Santa Rosa Creek Rd., 6.9 mi east of Cambria
183
Comment
UCR91687
Brachypodium distachyon
George K. Helmkamp
1996-5-24
1013
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
UCR275317
Brassica geniculata
George K. Helmkamp, Elizabeth Helmkamp
2013-8-7
22109
Nevada
Sierra Nevada Mountains Foothills, north of Auburn, Robles Drive, just south of the junction of Darkhorse Drive and Combie Rd.
444
Comment
UCR101137
Brassica tournefortii
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2955
Imperial
Sonoran (Colorado) Desert, Little Picacho Wash along Picacho Rd, 2.5 mi. south of Picacho State Recreation Area
152
Comment
UCR104854
Brassica tournefortii
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2723
Riverside
Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd.
122
Comment
UCR240256
Brassica tournefortii
George K. Helmkamp
2004-2-11
8272 B
San Luis Obispo
Central Coast, Nipomo Mesa, Pomeroy Rd, 0.2 mi north of Willow Rd.
130
Comment
SD234284
Brickellia californica
G. K. Helmkamp, E. A. Helmkamp
2007-9-14
12961
Placer
Foothills, norhtern Sierra Nevada Mountains: along Mosquito Ridge Road 6 miles east of Foresthill.
609
Comment
SEINET4691389
Brickellia californica
George K. Helmkamp, E. A. Helmkamp
2010-1
17015
Placer
Northern Sierra Nevada Mountains Foothills: Old Foresthill Road (between CA-49 and new Foresthill Rd), 1.8 miles northeast of junction with CA-49.
250
Comment
UCR114246
Brickellia californica
George K. Helmkamp
1997-7-29
2246
San Diego
South Coast, San Onofre State Beach
30
Comment
CLARK-A1045-839
Brickellia desertorum
George K. Helmkamp
1977-5-29
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
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
UCR184793
Briza minor
George K. Helmkamp, E. A. Helmkamp
2007-5-11
11989
El Dorado
Foothills, northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park, Diamond Springs
524
Comment
UCR193580
Briza minor
George K. Helmkamp, E. A. Helmkamp
2007-9-9
12912
Sacramento
Sacramento Valley, along Hwy CA-16, 0.8 mile west of the Amador County line
85
Comment
UCR217836
Briza minor
George K. Helmkamp, Amy Barnes
2010-5-7
15965
Calaveras
Sierra Nevada Mountains Foothills, along CA-49, 0.4 mile north of its junction with CA-12, vicinity of San Andreas
233
Comment
UCR230131
Briza minor
George K. Helmkamp, E. A. Helmkamp
2011-5-19
17295
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
UCR250274
Briza minor
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14483
Amador
Sierra Nevada Mtns. Foothills, south of Ione, CA-88 between Buena Vista Rd. and South Church St.
125
Comment
UCR173817
Brodiaea elegans subsp. elegans
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-4
10630
El Dorado
Northern Sierra Nevada foothills, Rock Creek Road, about 2.2 miles east of its junction with Calif. Hwy 193
424
Comment
UCR249600
Brodiaea elegans subsp. elegans
George K. Helmkamp, Elizabeth Helmkamp
2013-6-11
20829
Placer
Northern Sierra Nevada Mountains Foothills, junction of Yankee Jim's Road and Shirttail Canyon Road, NW of Foresthill
463
Comment
UCR207439
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
UCR232287
Bromus
George K. Helmkamp, E. A. Helmkamp
2010-8-3
16684
Calaveras
Northern Sierra Nevada Mountains, along CA-4 at the Arnold Byway, about 0.3 mile northeast of Arnold
1244
Comment
UCR67017
Bromus briziformis
George K. Helmkamp
1990-9-23
D- 11
Lassen
20 mi north of Litchfield along US Hwy 395
1437
Comment
UCR207444
Bromus carinatus var. carinatus
George K. Helmkamp, Amy Barnes
2009-7-8
15157
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
UCR237382
Bromus ciliatus
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19166
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 3.6 miles north of its junction with CA-20
1006
Comment
RSA0107419
Bromus diandrus
George K. Helmkamp, Amy Barnes
2013-3-28
20259
Yuba
Eastern Sacramento Valley: northbound exit road from CA-65, connecting with Forty Mile Road.
30
Comment
UCR173174
Bromus diandrus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-6
10129
Placer
Northern Sierra Nevada Foothills, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin
122
Comment
UCR235704
Bromus diandrus
George K. Helmkamp, E. A. Helmkamp
2012-4-27
18871
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
UCR242937
Bromus diandrus
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15853
Solano
Northern San Joaquin Valley, Tremont Road, 0.8 mile west of Mace Blvd, 3.8 mi. (air) SE of Davis
3
Comment
SEINET3817934
Bromus laevipes
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18910
Placer
Northern Sierra Nevada Foothills, Lake Clementine Road, 1.2 miles west of its junction with Foresthill Road, 0.3 air mi SE (123degrees) of Clementine Dam on the American River (Auburn 7.5' Q.
396
Comment
UCR173822
Bromus madritensis
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-4
10640
El Dorado
Northern Sierra Nevada foothills, along Calif. Hwy 193, 0.6 mile west of its junction with Rock Creek Road
485
Comment
UCR124090
Bromus rubens
George K. Helmkamp, Elizabeth Helmkamp
2000-4-4
5349
San Bernardino
Sonoran (Colorado) Desert, Sacramento Spring. Along Calif. Hwy 95, 1.6 mi north of Interstate-40
396
Comment
UCR177014
Bromus sterilis
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10407
Nevada
Northern Sierra Nevada Foothills, San Juan Ridge area at North Columbia, c. 9.3 mi. east of Calif. Hwy 49
884
Comment
CLARK-A1045-910
Bromus tectorum
George K. Helmkamp
1977-3-24
San Diego
Cleveland Mountains roadside; Beauty Mountain 7.5'Q
Comment
CLARK-A1045-830
Buddleja utahensis
George K. Helmkamp
1977-5-14
San Bernardino
Mesquite Mountains steep limestone slope 1.5 miles east of Winters Pass; ; Clark Mt. 15'Q
1127
Comment
UCR89830
Caesalpinia virgata
George K. Helmkamp
1994-3-10
42- 18
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
UCR231317
Calandrinia ciliata
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17195
Yuba
East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir
65
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
UCR107313
Calochortus albus
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3720
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; beside Guadalupe Reservoir
201
Comment
UCR257022
Calochortus albus
George K. Helmkamp, Amy Barnes
2014-4-23
22782
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
UCR123395
Calochortus leichtlinii
George K. Helmkamp, E. A. Helmkamp
1998-8-13
4431
Mono
Eastern Sierra Nevada Mountains, 0.3 mi south of Saddlebag Lake along Saddlebag Lake Rd, above Lee Vining Creek
2988
Comment
UCR189202
Calochortus leichtlinii
George K. Helmkamp
2007-7-7
12508
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road, 12.0 miles south of its junction with CA-88
2549
Comment
UCR173732
Calochortus minimus
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10701
El Dorado
Northern Sierra Nevada Mountains, Ice House Road at the turnoff to Loon Lake
1982
Comment
UCR208587
Calochortus minimus
George K. Helmkamp, E. A. Helmkamp
2009-5-11
14652
Placer
Sierra Nevada Mountains Foothills, along Forest Hill Road, 2.5 miles northeast of Foresthill
1073
Comment
CAS-BOT-BC444013
Calochortus monophyllus
George K. Helmkamp; Mary Alice Barnes
2013-5-10
20528
El Dorado
Northern Sierra Nevada Mtns. Foothills: Wentworth Springs Road, 3.4 miles east of Georgetown.
299
Comment
UCD139557
Calochortus monophyllus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-9
10337
Amador
Northern Sierra Nevada. Grass Valley Creek, 1.2 miles east of Pine Grove along Hwy. CA-88.
762
Comment
UCR230086
Calochortus monophyllus
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17485
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 7.6 rd. miles northeast (via Pine Gulch & Gopher Flat rds) of junction of Sutter Creek Rd. and Pine Gulch Rd.
712
Comment
UCR157823
Calochortus venustus
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4168
Kern
Tehachapi Mtns., SW end of city of Tehachapi at corner of Water Canyon Rd.and Highland Rd.
1328
Comment
UCR170277
Calochortus venustus
George K. Helmkamp, E. A. Helmkamp
2005-5-12
9455
Monterey
Central Coast Ranges, WNW of Lockwood along Highway G-14; mile-28 on the road
329
Comment
UCR230973
Calochortus venustus
George K. Helmkamp, E. A. Helmkamp
2011-6-7
17475
Amador
Northern Sierra Nevada Mountains Foothills, Sutter Creek Road, 3.4 miles west of Volcano
491
Comment
UCR248666
Calochortus venustus
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19095
Calaveras
Northern Sierra Nevada Mountains Foothills, CA-26 east of Mokelumne Hill, at the crossing of the South Fork Mokelumne River
614
Comment
SD234500
Caltha leptosepala
G. K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10749
El Dorado
Northern Sierra Nevada Mountains: 8 miles east of Ice House Road on the road to Wright's Lake.
2000
Comment
UC2044598
Calycadenia multiglandulosa
George K. Helmkamp with E. A. Helmkamp
2011-6-2
17428
Nevada
Northern Sierra Nevada Mountains Foothills Along CA-20, 3.3 miles west of its junction with CA-49 in Grass Valley. (Grass Valley 7.5' Q.)
Comment
UCR241349
Calycadenia multiglandulosa
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19871
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
CAS-BOT-BC526866
Calycadenia oppositifolia
George K. Helmkamp; Elizabeth Helmkamp
2013-5-30
20722
Nevada
Northern Sierra Nevada Mountains Foothills: along Hwy CA-20, 3.5 mi W of CA-49 in Grass Valley
623
Comment
UCR176461
Calyptridium monospermum
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11079
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
UCR237558
Calyptridium monospermum
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19293
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 2.9 miles west of its junction with CA-88
2271
Comment
UCR242332
Calyptridium monospermum
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16657
Placer
Northern Sierra Nevada Mountains, Forest Hill Road, 22 miles northeast of the city of Foresthill
2041
Comment
UCR88209
Calyptridium monospermum
George K. Helmkamp
1995-9-23
3- 19
Alpine
Sierra Nevada Mtns, west side of Sonora Pass, just beyond the Mono County line
2927
Comment
UCD126172
Calystegia occidentalis subsp. occidentalis
G. K. Helmkamp; E. A. Helmkamp
2006-6-14
10706
Placer
Northern Sierra Nevada Mountains: 0.2 mile N of Forest Hill Road on unnamed road to Lake Clementine (general area NE of Auburn on Forest Hill Divide).
487
Comment
UCR232625
Calystegia occidentalis subsp. occidentalis
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16643
Placer
Northern Sierra Nevada Mountains, Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road
1567
Comment
RSA613880
Camissonia boothii subsp. decorticans
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3253
Kern
Taft. 14 miles NE of Taft; along Tupman Road just north of its intersection with CA highway 199 (west of the outlet canal) [Hwy 119].
91
Comment
UCR101064
Camissonia boothii subsp. decorticans
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3253
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
UCR102527
Camissonia campestris
George K. Helmkamp
1997-3-6
1341
Los Angeles
Western Mojave Desert, west of Lancaster at 125th St. & Calif. Hwy 138
762
Comment
UCR122650
Camissonia campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2866 A
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
UCR118642
Camissonia claviformis
George K. Helmkamp
1998-4-3
3081
Riverside
Sonoran (Colorado) Desert/San Jacinto Mtns., Snow Creek area north of Mt. San Jacinto; at edge of stream south of Snow Creek Rd at a point 1.4 mi. south of Calif. Hwy 111
396
Comment
SEINET273131
Camissonia claviformis subsp. aurantiaca
G. K. Helmkamp, EA Helmkamp
1998-2-26
2751
San Bernardino
Mojave Desert; East Cronise Dry lake. 0.2 mi S of I-15 on Basin Rd
332
Comment
UCR101113
Camissonia claviformis subsp. aurantiaca
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2751
San Bernardino
Mojave Desert, East Cronese Dry Lake. 0.2 mi south of I-15 on Basin Rd.
332
Comment
UCR101495
Camissonia claviformis subsp. aurantiaca
George K. Helmkamp, E. A. Helmkamp
1998-2-26
2796
San Bernardino
Mojave Desert, NW side of Salt Spring Hills about 28 mi north of Baker; between the hills and Calif. Hwy 127
201
Comment
UCR122945
Camissonia claviformis subsp. aurantiaca
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6443
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
UCR14503
Camissonia heterochroma
George K. Helmkamp
1974-5-4
s.n.
Inyo
Owens Valley, Owens River, Pleasant Valley
1372
Comment
CLARK-A1045-1316
Camissonia ignota
George K. Helmkamp
1978-3-25
San Diego
Imperial Beach Silver Strand, sandy disturbed area; Imperial Beach 7.5'Q
Comment
CLARK-A1045-74
Camissonia strigulosa
George K. Helmkamp
1978-5-20
Riverside
San Jacinto Mountains roadside; Kensworthy Forest Station; Idyllwild 15' Q
Comment
SD148105
Camissonia strigulosa
G. K. Helmkamp, E. A. Helmkamp
2001-4-27
6522
Kern
Tehachapi Mountains; CA-223, 7.2 miles east of Arvin.
366
Comment
UCR122163
Camissonia strigulosa
George K. Helmkamp, E. A. Helmkamp
2000-4-22
5474
San Luis Obispo
Central Coast, Los Osos, between the west end of Howard Ave. and Morro Bay sand dunes
15
Comment
UCR122203
Camissonia strigulosa
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7522
Madera
Western Sierra Nevada Foothills, along Belleview Rd (Rd 208) 1.2 mi west of Bear Lake Rd (Rd 211), west of Indian Springs
213
Comment Read comments Jul 7 2020
SEINET11262382
Campanula prenanthoides
George Helmkamp, E. A. Helmkamp
2011-7-30
17934
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 (Caldor 7.5' Q.); 0
1209
Comment
SEINET9262034
Campanula prenanthoides
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20801
Placer
Northern Sierra Nevada Mountains Foothills; Yankee Jims Road, 3.6 miles northwest of its junction with Forest Hill Road (Foresthill 7.5 Q)
768
Comment
UCR229400
Campanula prenanthoides
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17934
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
RSA790650
Capsella bursa-pastoris
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18992
Calaveras
At a crossing of Murray Creek along Murray Creek Road. 1.8 mi east of Pope Road in San Andreas.
351
Comment
SEINET5527563
Capsella bursa-pastoris
George K. Helmkamp, E. A. Helmkamp
2009-3-5
14336
El Dorado
Northern Sierra Nevada Mtns. Foothills; Sand Ridge Road 4.3 miles east of its junction with CA-49
494
Comment
UCR206868
Capsella bursa-pastoris
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14315
Colusa
Sacramento Valley, junction of Moon Bend Road and CA-20 at the south end of the city of Colusa
23
Comment
UCR188240
Cardamine hirsuta
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11863
El Dorado
Foothills, Northern Sierra Nevada Mountains, Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House
1027
Comment
UCR208560
Cardamine hirsuta
George K. Helmkamp, E. A. Helmkamp
2009-5-4
14591
El Dorado
Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 3.6 miles east of Sly Park Rd. and Jenkinson Lake
1226
Comment
SBBG129008
Cardamine oligosperma
G. K. Helmkamp, E. A. Helmkamp
2012-4-21
18811
Nevada
junction of Lime Kiln Rd and Amberley Lane, 14.5 mi NNW (345 deg) of Auburn
414
Comment
CAS-BOT-BC259177
Cardamine pensylvanica
George K. Helmkamp; E. A. Helmkamp
2012-2-23
18576
Placer
Eastern edge Sacramento Valley: Newcastle, along CA-193 (Newcastle Hwy), 0.1 mile southeast of its junction with Langs Hill Road, west of the junction with I-80, SW of Auburn
279
Comment
CLARK-A1045-1020
Cardaria pubescens var. elongata
George K. Helmkamp
1977-6-11
Kern
Weldon roadside ditch beside farmland; ; Weldon 7.5'Q
914
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
UCR14488
Cardionema ramosissimum
George K. Helmkamp
1974-4-28
s.n.
San Luis Obispo
Central Coast, Baywood Park
30
Comment
SD227732
Carduus pycnocephalus
G. K. Helmkamp, E. A. Helmkamp
1999-5-22
4903
San Luis Obispo
Los Osos: N of the corner of Buckskin & Martingale streets.
60
Comment
UCR130720
Carduus pycnocephalus
George K. Helmkamp, E. A. Helmkamp
1999-5-22
4903
San Luis Obispo
Central Coast, Los Osos; north of the corner of Buckskin Dr. & Martingale Ave.
61
Comment
UCD140990
Carex
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10881
El Dorado
Northern Sierra Nevada Mountains. Wright's Lake Road, 6.1 miles north of Hwy. US-50. At junction with the road from Ice House Resevoir.
2030
Comment
UCR235571
Carex
George K. Helmkamp, E. A. Helmkamp
2012-5-3
18901
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
UCR249557
Carex
George K. Helmkamp, E. A. Helmkamp
2007-6-20
12396
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail just before its junction with Hwy CA-88
2265
Comment
SEINET3896968
Carex abrupta
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13742
Amador
Northern Sierra Nevada Mountains: Dufrene Road, 1.5 miles south of its junction with CA-88 jct. between Mormon Emigrant Trail and Bear Valley Reservoir Road ( Bear River Reservoir 7.5'Q).; 0
2021
Comment
UCR190551
Carex athrostachya
George K. Helmkamp
2007-6-29
12436
Amador
Northern Sierra Nevada Mountains, Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
UCR246640
Carex deweyana subsp. leptopoda
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19149
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 5.8 miles south of its junction with CA-88, 6.2 mi. SW (246 deg. ) of Bear River Reservoir dam
1465
Comment
UCR197801
Carex hassei
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13726
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 1.1 miles south of its junction with CA-88 (jct. is between Mormon Emigrant Trail and Bear River Reservoir Road), c. 2 miles (air) north of the west end of Lower Bear River Reservoir
2055
Comment
SD260859
Carex hoodii
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18080
Alpine
Northern Sierra Nevada Mountains: south side of Bear Valley Village, along CA Hwy 4 .
2168
Comment
UCR122345
Carex illota
George K. Helmkamp, Elizabeth Helmkamp
2000-7-19
5896
Mono
Sierra Nevada Mountains., West side of Lake Mary, southwest of Mammoth Lakes
2652
Comment
UCR174201
Carex illota
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10586
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road just north of Hwy US-50
1665
Comment
UCR114347
Carex integra
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2269
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCR192508
Carex integra
George K. Helmkamp, E. A. Helmkamp
2007-5-31
12225
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
UCR237286
Carex mariposana
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19314
Amador
Northern Sierra Nevada Mountains, Bear River Road, 3.0 miles east of the Lower Bear River Reservoir dam
1816
Comment
UCR189156
Carex multicaulis
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12594
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 3.9 miles north of its junction with CA-20; in the vicinity of Fuller Lake
1668
Comment
UCR206070
Carex multicostata
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13927
El Dorado
Northern Sierra Nevada Mountains, Wrights Lake Road, 3.3 miles north of its junction with CA-50
2043
Comment
UCR248392
Carex multicostata
George K. Helmkamp, Elizabeth Helmkamp
2013-7-10
21031
Amador
Northern Sierra Nevada Mountains, Mormon Emigrant Trail at the rest stop 0.4 mile west of CA-88 (Carson Pass Hwy), near abandoned Iron Mountain ski area
2250
Comment
UCR240966
Carex nebrascensis
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19918
Placer
Northern Sierra Nevada Mountains, Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road
1611
Comment
UCR252991
Carex nebrascensis
George K. Helmkamp, Amy Barnes
2013-9-23
22329
Alpine
Northern Sierra Nevada Mountains, northern edge of Mosquito Lake along CA-4/Ebbetts Pass road
2454
Comment
UCR40778
Carex pellita
George K. Helmkamp
1985-8-20
885- 22
Mono
Owens Valley, along the Owens River, at Big Springs Campground, 7 air miles NE of Mammoth Lakes, above Arcularius Ranch
2195
Comment
UCR15425
Carex rostrata
George K. Helmkamp
1977-9-1
s.n.
El Dorado
Sierra Nevada Mtns., Grass Lake, west of Luther Pass
2348
Comment
UCR15424
Carex simulata
George K. Helmkamp
1977-8-7
s.n.
Tuolumne
Sierra Nevada Mtns, Yosemite National Park. Porcupine Flats Campground
2591
Comment
UCD140973
Carex vesicaria
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12793
El Dorado
Northern Sierra Nevada Mountains: Ice House Road at the junction to the lower campground and boat ramp of Loon Lake.
1976
Comment
UCR121541
Castilleja affinis subsp. affinis
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4996
San Mateo
Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek
61
Comment
UCR123910
Castilleja applegatei subsp. martini
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6921
Tehama
Sierra Nevada Mountains, Calif. Hwy 36, 2.6 mi west of Mineral, about 33 mi west of Chester, Lake Almanor
1418
Comment
UCR121760
Castilleja applegatei subsp. pallida
George K. Helmkamp, E. A. Helmkamp
1998-8-11
4320
Mono
White Mountains, White Mountain Road west of the turnoff to Patriarch Bristlecone Pine Grove
3445
Comment
UC2045175
Castilleja applegatei subsp. pinetorum
George K. Helmkamp with Mary Alice Barnes
2013-4-18
20354
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. Colfax 7.5' Q.
Comment
UCD122250
Castilleja applegatei subsp. pinetorum
G. K. Helmkamp; E. A. Helmkamp
2006-7-7
10848
El Dorado
Northern Sierra Nevada Mtns.: Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz.
2049
Comment
UCR198496
Castilleja applegatei subsp. pinetorum
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13394
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
RSA0047081
Castilleja campestris subsp. campestris
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13941
El Dorado
Wright's Lake Road at Lyons Creek, 4.0 miles north of CA-50.
2043
Comment
UCR161824
Castilleja exserta subsp. exserta
George K. Helmkamp, E. A. Helmkamp
2005-3-13
9117
Santa Barbara
South Outer Coast Ranges, Sierra Madre Mountains; Tepusquet Canyon, 2.0 mi. south of Calif. Highway 166
402
Comment
UCR102522
Castilleja exserta subsp. venusta
George K. Helmkamp, E. A. Helmkamp
1997-3-7
1370
Kern
SE of Maricopa along Western Minerals Rd near Bitter Creek
427
Comment Read comments Mar 17 2021
UCR130388
Castilleja exserta subsp. venusta
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4035
Kern
Western Mojave Desert, South base, Tehachapi Mtns., 4.0 mi north of Calif. Hwy 138 (Lancaster Rd) on 300th St. West
1006
Comment
UCR253124
Castilleja foliolosa
George K. Helmkamp, Amy Barnes
2014-4-23
22822
Placer
Sierra Nevada Mountains Foothills, Foresthill Road, 0.6 mile northeast of Grizzly Bear House, c. 2 miles NE of Lake Clementine Rd, 0.57 mi. SW of Upper Lake Clementine Rd
526
Comment
UCR61757
Castilleja foliolosa
George K. Helmkamp
1990-4-1
s.n.
San Luis Obispo
West Cuesta Ridge, c. 3 mi west of US Hwy 101
671
Comment
UCR130600
Castilleja latifolia
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4844
Monterey
Santa Lucia Mtns./Central Coast, Willow Creek, north of Gorda beside Calif. Hwy 1
30
Comment
SEINET13276717
Castilleja miniata subsp. miniata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-1
19426
Sierra
Northern Sierra Nevada Mountains: along Hwy CA-89, c. 8 miles north of the Nevada County line (Sierraville 7.5' Q.)
1823
Comment
UCR196816
Castilleja miniata subsp. miniata
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13813
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR233677
Castilleja miniata subsp. miniata
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16860
Nevada
Northern Sierra Nevada Mountains, Donner Pass Road, 0.8 mile west of its junction with Hwy. I-80, 0.65 mi. NE (62 deg. ) of Kingvale
1921
Comment
UCR13912
Castilleja pilosa
George K. Helmkamp
1973-6-14
s.n.
Mono
Owens Valley, Owens River at Benton Crossing, just north of Crowley Lake
2134
Comment
UCR13914
Castilleja pilosa
George K. Helmkamp
1973-6-13
s.n.
Inyo
Owens Valley, Owens River near Pleasant Valley
1372
Comment
UCR247253
Castilleja pruinosa
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22181
Alpine
Northern Sierra Nevada Mountains, along CA-89, 0.1 mile east of its junction with CA-4, Monitor Creek
1747
Comment
UCD123060
Castilleja tenuis
G. K. Helmkamp; E. A. Helmkamp
2006-7-10
10902
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road, 6.1 miles north of Hwy US-50 at the junction with the road from Ice House Reservoir.
2030
Comment
UCR218255
Castilleja tenuis
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16598
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
UCR242787
Castilleja tenuis
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16918
Amador
Northern Sierra Nevada Mountains, Dufrene Road 0.7 mile east of its junction with CA-88, north of Lower Bear River Reservoir
2044
Comment
UCR250154
Ceanothus cordulatus
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20923
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, north side of its junction with Mormon Emigrant Trail
2188
Comment
SBBG129049
Ceanothus integerrimus
G. K. Helmkamp, E. A. Helmkamp
2013-6-15
20874
El Dorado
Silver Fork Rd, 2.3 mi S of its jct with US-50 in Kyburz
1454
Comment
UCR258533
Ceanothus prostratus
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20421
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing Road, 0.1 mile south of its junction with Mormon Emigrant Trail
1261
Comment
UCR87510
Ceanothus prostratus
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
16.1 miles NW of Canby along Calif. Hwy 139
1280
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
UCR123465
Ceanothus velutinus subsp. velutinus
George K. Helmkamp, E. A. Helmkamp
1998-8-13
4437
Mono
Eastern Sierra Nevada Mountains, Inyo Craters, about 3.6 air miles NW of Mammoth Lakes
2591
Comment
UCR202560
Centaurea cyanus
George K. Helmkamp, E. A. Helmkamp
2008-9-22
14155
Alpine
Northern Sierra Nevada Mountains, along CA-89. 0.1 mile north of Markleeville
1686
Comment
SD248325
Centaurea solstitialis
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22134
Amador
Sierra Nevada Mountains Foothills: City of Sutter Creek at the junction of Hanford St. and Spanish St.
384
Comment
SEINET4560835
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2010-1
17023
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
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
UCR206392
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14758
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
UCR253592
Cephalanthus occidentalis var. californicus
George K. Helmkamp, Elizabeth Helmkamp
2012-10-30
20111
Sutter
Sacramento Valley, Kirkville Rd., west of CA-99 on Sacramento Ave. to the east side of the Sutter Causeway
17
Comment
UCR217934
Cerastium glomeratum
George K. Helmkamp, Laurel Bezdecheck
2010-5-28
16105
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
UCR218192
Cerastium glomeratum
George K. Helmkamp, E. A. Helmkamp
2010-5-31
16156
Amador
Sierra Nevada Mountains Foothills, Church Street, becoming Sutter Creek-Volcano Road, 0.2 mile east of the village of Sutter Creek
402
Comment
UCR118953
Cerastium tomentosum
George K. Helmkamp
2000-7-18
5848
Mono
Eastern Sierra Nevada Mountains, city of Mammoth Lakes
2409
Comment
UCR188874
Cercis occidentalis
George K. Helmkamp, E. A. Helmkamp
2007-3-31
11725
Nevada
Foothills, Northern Sierra Nevada Mountains, just south of the crossing of CA-49 over the South Yuba River
390
Comment
UCD130267
Chaenactis douglasii
G. K. Helmkamp; E. A. Helmpkamp
2006-9-12
11374
El Dorado
Northern Sierra Nevada Mountains: Along Hwy CA-89, 1.2 miles west of the Alpine County line. General area of Luther Pass and Grass Lake.
2362
Comment
RSA0012020
Chaenactis douglasii var. douglasii
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16829
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
UCR189049
Chaenactis douglasii var. douglasii
George K. Helmkamp
2007-7-7
12511
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road, 12.0 miles south of its junction with CA-88
2549
Comment
UCR88333
Chaenactis douglasii var. douglasii
George K. Helmkamp
1995-9-21
95-1- 06
Mono
Sierra Nevada Mtns., south edge of Lake Mary, south of Lake Mary, Mammoth Lakes
2805
Comment
UCR104790
Chaenactis fremontii
George K. Helmkamp
1998-4-4
3123
San Bernardino
Mojave Desert, S edge of Cadiz Dry Lake, 13.1 mi. north of mile-marker 76 on Calif. hwy 62 (Twentynine Palms Hwy), east of Twentynine Palms
183
Comment
UCR158571
Chaenactis glabriuscula var. lanosa
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9399
San Luis Obispo
Inner South Coast Ranges, Carrizo Highway at Mile-32, Calif. Hwy 58, east of Santa Margarita, beside Windmill Creek
509
Comment
SBBG129052
Chamaebatia foliolosa
G. K. Helmkamp, E. A. Helmkamp
2013-6-15
20872
El Dorado
Silver Fork Rd, 2.3 mi S of its jct with US-50 in Kyburz
1454
Comment
SEINET2442019
Chamaebatia foliolosa
George K. Helmkamp, E. A. Helmkamp
2010-5-15
16046
El Dorado
Sierra Nevada Mountains Foothils: String Canyon Road, 1.4 miles northeast of its junction with Consumnes Mine Road (Sly Park 7.5').; 0
1109
Comment
UCR253217
Chamaebatia foliolosa
George K. Helmkamp
2014-4-27
22827
El Dorado
Sierra Nevada Mountains, Capps Crossing Road, 0.9 mile west of the bridge over Camp Creek
1552
Comment
RSA615338
Chamaesyce polycarpa var. polycarpa
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2696
Riverside
Midland Rd., 3.8 mi. SE of Midland, Little Maria Mtns. Sandy wash with Olneya tesota and Mexican paloverde, adjacent to creosote bush scrub.
Comment
UCR248541
Chamaesyce serpyllifolia
George K. Helmkamp, Elizabeth Helmkamp
2013-9-13
22287
Amador
Northern Sierra Nevada Mountains Foothills, Volcano Road, 11.4 miles northeast of CA-49 in Sutter Creek, c. 0.4 mi SW of Volcano
608
Comment
UCD103661
Chamerion angustifolium subsp. circumvagum
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11095
El Dorado
Northern Sierra Nevada Mountains. 0.3 mile W of the junction of Wright's Lake Road (Forestry Route 4) and the road form Ice House Reservoir.
2037
Comment
UCR196924
Chenopodium
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13875
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
UCR201556
Chenopodium berlandieri
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14272
Colusa
Sacramento Valley, along CA-20, 2 miles west of Meridian
14
Comment
UCR261625
Chenopodium berlandieri
George K. Helmkamp, Amy Barnes
2014-9-16
23098
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
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
UCR59979
Chenopodium botrys
George K. Helmkamp
1988-9-8
s.n.
Mono
Clearwater Creek Road (to Bodie), 2.2 mi. east of Hwy 395
2256
Comment
UCR103346
Chenopodium fremontii
George K. Helmkamp
1993-9-12
22- 12
San Bernardino
San Bernardino Mtns, Burns Canyon, in the vicinity of Burns Spring
1524
Comment
RSA518507
Chenopodium incanum
George K. Helmkamp
1985-5-28
s.n.
San Bernardino
South of Morongo Valley. First STring crossing about 1 1/2 miles downstream from the Kiosk.
716
Comment
UCD97854
Chenopodium missouriense
G. K. Helmkamp; E. A. Helmkamp
2007-10-7
13065
Butte
Northern Sacramento Valley. East Gridley Road at the west edge of the Feather River bridge.
27
Comment
UCR103605
Chenopodium murale
George K. Helmkamp
1997-2-1
1297
Imperial
Sonoran (Colorado) Desert, Imperial Valley, SW of Niland along Sinclair Rd and just east of Hatfield Rd.
-55
Comment
UCD130409
Chondrilla juncea
G. K. Helmkamp; E. A. Helmkamp
2006-8-11
11206
Placer
Northern Sierra Nevada Mountain. Along connecting road joining Forest Hill Road, with the CA-49 crossing of American River.
396
Comment
UCR188559
Chondrilla juncea
George K. Helmkamp, E. A. Helmkamp
2007-9-26
13021
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 2.3 miles east of Jenkinson Lake
1226
Comment
CLARK-A1045-988
Chorizanthe brevicornu
George K. Helmkamp
1977-4-16
Kern
Mojave 3 miles east of Mojave; Mojave 7.5'Q
Comment
UCR122948
Chorizanthe brevicornu
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6457
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
SD225062
Chorizanthe brevicornu var. brevicornu
G. K. Helmkamp
1998-2-5
2639
Riverside
Palm Springs, 1.1 mi. W of CA Hwy 111 on Tramway Rd.
334
Comment
UCR142586
Chorizanthe californica
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5673
San Luis Obispo
Central Coast, between Los Osos and sand dunes west of the end of Howard St.
15
Comment
UCR15525
Chorizanthe watsonii
George K. Helmkamp
1978-5-28
s.n.
Mono
Lower Rock Creek
1677
Comment
UCR123995
Chrysanthemum leucanthemum
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6852
Plumas
Sierra Nevada Mountains, Calif. Hwy 89, ESE of Lake Almanor at Crescent Mills
976
Comment
UCR216336
Chrysanthemum leucanthemum
George K. Helmkamp
2004-3-23
08396
San Luis Obispo
Central Coast, ENE of Nipomo; 1.5 miles SW of Rancho Rd along Dana Foothill Rd.
171
Comment
UCD110129
Chrysolepis sempervirens
G. K. Helmkamp; E. A. Helmkamp
2006-8-14
11264
El Dorado
Northern Sierra Nevada Mtns: Sayles Flat at the junction of Mount Ralston Trail and US-50, ca. 0.9 mile south of Twin Bridges.
1960
Comment
UCD110130
Chrysolepis sempervirens
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12794
El Dorado
Northern Sierra Nevada Mtns: Ice House Road at the junction to the lower campground and boat ramp of Loon Lake.
1976
Comment
RSA0053699
Chrysothamnus nauseosus subsp. albicaulis
G. K. Helmkamp, E. A. Helmkamp
2012-9-25
19928
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
UCR178752
Chrysothamnus nauseosus subsp. albicaulis
George K. Helmkamp, E. A. Helmkamp
2006-8-30
11320
Amador
Northern Sierra Nevada Mountains, along Calif. Hwy 88, 4.5 miles west of the south shore of Silver Lake, vicinity of Shot Rock Picnic area
2322
Comment
UCR58451
Chrysothamnus teretifolius
George K. Helmkamp
1989-10-1
s.n.
San Bernardino
Southern Mojave Desert, Coyote Hole Spring, 1.1 mi south of Hwy 62 at town of Joshua Tree
900
Comment
SD143804
Chylismia claviformis subsp. yumae
G. K. Helmkamp, E. Helmkamp
1998-1-24
2581
Imperial
Between Highway I-8 and the All American Canal across from the Brock Research Center, ca. 3.0 miles east of the junction of Highway CA-98 with Highway I-8.
46
Comment
SD143805
Chylismia claviformis subsp. yumae
G. K. Helmkamp, E. Helmkamp
1998-1-24
2570
Imperial
Between Highway I-8 and the All American Canal across from the Brock Research Center, ca. 3.0 miles east of the junction of Highway CA-98 with Highway I-8.
46
Comment
UCR258412
Cichorium intybus
George K. Helmkamp, Amy Barnes
2014-8-27
23040
Alpine
Northern Sierra Nevada Mountains, Woodfords, at the junction of CA-88 and CA-89
1723
Comment
CAS-BOT-BC444033
Cinnamomum camphora
George K. Helmkamp; E. A. Helmkamp
2013-11-29
22499
El Dorado
Foothills Sierra Nevada Mountains: 1.1 mi. NW (320 deg. ) of Coloma, Little Rd. along the NE side of South Fork American River; 0.2 mile north of CA-49.
64
Comment
UCR230704
Cirsium vulgare
George K. Helmkamp, E. A. Helmkamp
2010-10-1
16995
Amador
Northern Sierra Nevada Mountains Foothills, Shake Ridge Road, 1.1 miles southwest of its junction with Hale Road, 2.5 mi. NW (285 deg. ) of Volcano
692
Comment
RSA779392
Cistanthe monosperma
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15080
El Dorado
Ice House Road, 8.2 miles north of its junction with CA-50, c. 10.5 air miles NE (73 deg ) of Pollock Pines
1646
Comment
UCR102542
Clarkia amoena subsp. huntiana
George K. Helmkamp, E. A. Helmkamp
1997-6-25
2101
Mendocino
State Hwy 128, about 5 mi. NW of Cloverdale
427
Comment
UCR121480
Clarkia amoena subsp. huntiana
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5700
Sonoma
Outer North Coast Ranges, along Calif. Hwy 128, 0.5 mi south of Mendocino Co. line
381
Comment
SBBG120611
Clarkia biloba
G. K. Helmkamp with E. A. Helmkamp
2006-6-14
10708
Placer
0.2 mi N of Forest Hill Rd on unnamed rd to Lake Clementine (general area NE of Auburn on Forest Hill Divide)
488
Comment
SEINET11237917
Clarkia biloba subsp. biloba
George K. Helmkamp, E. A. Helmkamp
2009-6-2
14874
El Dorado
Sierra Nevada Mountains foothills, along Mother Lode Road, 0.1 mile west of its junction with CA-49 (west end of El Dorado)
512
Comment
UCR230990
Clarkia biloba subsp. biloba
George K. Helmkamp, E. A. Helmkamp
2011-7-2
17626
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
UCR140982
Clarkia cylindrica subsp. cylindrica
George K. Helmkamp
2004-4-23
8515
Santa Barbara
San Rafael Mountains, Figueroa Mountain Rd, 12.9 mi from Hwy-Calif. Hwy 154 at San Olivos jct.
1159
Comment
UCR159843
Clarkia cylindrica subsp. cylindrica
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9623
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
UCR122639
Clarkia purpurea
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3880
San Luis Obispo
Outer South Coast Range; Santa Lucia Range, southwest of Paso Robles along CA Hwy 46 at York Mountain Road
366
Comment
UCR173272
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10436
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River
370
Comment
UCR194923
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, E. A. Helmkamp
2007-5-27
12153
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
UCR217390
Clarkia purpurea subsp. quadrivulnera
George K. Helmkamp, E. A. Helmkamp
2010-6-14
16280
El Dorado
Sierra Nevada Mountains Foothills, Slug Gulch Road, 4.5 miles from its junction with Perry Creek Road, 3.5 air mi. ESE (96 deg. ) of Fair Play
1059
Comment
UCR230640
Clarkia rhomboidea
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17818
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
SD148104
Clarkia rubicunda
G. K. Helmkamp, E. A. Helmkamp
2001-5-30
Santa Clara
Santa Clara Valley, Gilroy Hot Springs Rd., 0.5 mile South of springs at Coyote Crk.
182
Comment
UCR157793
Clarkia speciosa
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4142
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
Comment
UCR158891
Clarkia speciosa subsp. speciosa
George K. Helmkamp, E. A. Helmkamp
2005-5-12
9437
Monterey
Central Coast Ranges, 8 mi west of US-101 on Calif. Highway G18 in Hames Valley
341
Comment
UCR109061
Clarkia unguiculata
George K. Helmkamp, E. A. Helmkamp
1998-6-30
4203
San Luis Obispo
South Coast Range, Alamo Creek Rd, 0.9 mile north of Calif. Hwy 166, near Twitchell Reservoir
320
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
UCR256676
Clarkia unguiculata
George K. Helmkamp, Amy Barnes
2014-5-8
22854
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 0.2 mile east of old CA-49 in town of Sutter Creek
375
Comment
RSA750961
Clarkia xantiana
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4138
Kern
2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
Comment
UCR170987
Claytonia parviflora subsp. parviflora
George K. Helmkamp, E. A. Helmkamp
2006-3-19
10086
Amador
Northern Sierra Nevada Foothills, Along Calif. Highway 49 just south of Plymouth
323
Comment
UCR254592
Claytonia parviflora subsp. parviflora
George K. Helmkamp
2014-3-11
22549
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
UCR102145
Claytonia perfoliata
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3680
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
SEINET13203121
Claytonia perfoliata subsp. mexicana
George K. Helmkamp
2014-1
22754
Nevada
Sierra Nevada Mountains Foothills: 8 miles west of Grass Valley, Penn Valley Drive, 0.2 mile southeast of its junction with CA-120 (Rough & Ready 7.5' Q.)
437
Comment
UCR258542
Claytonia rubra subsp. rubra
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20427
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing Road, 0.1 mile south of its junction with Mormon Emigrant Trail
1261
Comment
UCR161820
Clematis lasiantha
George K. Helmkamp, E. A. Helmkamp
2005-3-13
9122
Santa Barbara
South Outer Coast Ranges, Sierra Madre Mountains; Tepusquet Canyon, 3.1 mi south of Calif. Highway 166
396
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-A1045-31
Coldenia plicata
George K. Helmkamp
1977-4-24
Inyo
15 miles north of Trona; Creosote Bush scrub
Comment
CLARK-A1045-860
Coleogyne ramosissima
George K. Helmkamp
1977-5-29
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
UCR188174
Collinsia
George K. Helmkamp, E. A. Helmkamp
2007-4-30
11893
El Dorado
Foothills, Northern Sierra Nevada Mountains, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville
511
Comment
RSA710034
Collinsia heterophylla
George K. Helmkamp, E. A. Helmkamp
2002-4-22
7426
San Benito
San Andreas rift zone: Rabbit Valley. Along CA-25, 23.7 mi N of CA-198.
549
Comment
SD227903
Collinsia heterophylla
G. K. Helmkamp, E. A. Helmkamp
1998-5-14
3610
Fresno
Coast Range: Warthan Creek Canyon, near Curry Mtn., ca 6 - 7 miles (airline) SW of Coalinga, along CA Hwy 198, 20.8 mi. W of Interstate 5.
395
Comment
SEINET3860455
Collinsia heterophylla
George 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 mi. east of San Andreas.; 0
512
Comment
UCR207897
Collinsia heterophylla
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14688
El Dorado
Sierra Nevada Mountains Foothills, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
Comment
UCD123538
Collinsia heterophylla var. heterophylla
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-9
10366
Amador
Northern Sierra Nevada Foothills: near Enterprise, ca. 0.4 mile east of Ca Hwy 88 on an unnamed dirt road (probably Bell Road).
305
Comment
UCD123539
Collinsia heterophylla var. heterophylla
G. K. Helmkamp
2006-5-6
10314
Amador
Northern Sierra Nevada foothills: middle of the city Jackson, 0.1 mile north of the junction of CA-49 and CA-88.
377
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
UCR185219
Collinsia sparsiflora
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11783
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
SD241188
Collinsia tinctoria
George K. Helmkamp, E. A. Helmkamp
2011-7-9
17687
Placer
Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 10.8 miles southeast of its junction with Foresthill Road (Michigan Bluff 7.5'Q)
502
Comment
UCR218248
Collinsia tinctoria
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-2
16434
Placer
Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax
415
Comment
RSA795624
Collomia grandiflora
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17732
Calaveras
Winton Road (Forest Route 7N03), 14.4 miles east of its junction with CA-26 in West Point.
1590
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
SEINET4691692
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2011-1
17366
El Dorado
Northern Sierra Nevada Mountains Foothills: Mesquite Road, 7.5 miles south of its junction with Wentworth Springs Road.
1073
Comment
UCR191100
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12289
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 2.0 miles south of Mormon Emigrant Trail
1189
Comment
UCR229426
Collomia heterophylla
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17875
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
UCR87839
Collomia tinctoria
George K. Helmkamp, E. A. Helmkamp
1995-6-23
95- 09 -03
Alpine
Sierra Nevada Mtns, Calif. Hwy 89, beside alpine Heenan Lake, east of Monitor Pass
2165
Comment
UCR249542
Conium maculatum
George K. Helmkamp
2013-3-1
20147
Sutter
Sacramento Valley, Sacramento River levee along Cranmore Road, 0.7 mile south of Seymour Road via an unnamed road, 2 miles due west of Robbins
7
Comment
RSA0115713
Convolvulus arvensis
George K. Helmkamp, Mary Alice Barnes
2013-5-8
20519
Yolo
Southern Sacramento Valley: Yolo Bypass Wildfire Area, 0.9 mile southeast of the junction of Chiles Road and I-80, between Sacramento and Davis.
13
Comment
UCR178766
Convolvulus arvensis
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11400
Alpine
Northern Sierra Nevada Mountains, west end of Caples Lake at a dam; alongside CA Hwy 88
2335
Comment
UCR170425
Conyza bonariensis
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10020
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, c. 3 air mi NNW of Placerville]; South Fork of American River on the west side of Calif. Highway 193
291
Comment
UCR179349
Conyza canadensis
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11421
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Ice House Road [at Riverton] and US-50 east of Pacific
1000
Comment
UCR253150
Conyza canadensis
George K. Helmkamp, Amy Barnes
2013-9-23
22337
Calaveras
Northern Sierra Nevada Mountains, Forest Route 6N45 at the junction with CA-4, between Ganns and Cottage Springs
2021
Comment
RSA567982B
Cordylanthus rigidus subsp. setiger
George K. Helmkamp
1993-9-12
23 -13
San Bernardino
Along the edge of Burns Canyon.
1372
Comment
RSA0084757
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, E. A. Helmkamp
2005-9-12
9852
El Dorado
Northern Sierra Nevada Foothills: E of Sacramento; Sly Park Road (County Highway E-16), ca. 1 mi SW of Jenkinson Lake.
1067
Comment
UCR170360
Cordylanthus tenuis subsp. tenuis
George K. Helmkamp, Elizabeth Helmkamp
2005-9-12
9852
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento; Sly Park Road (County Highway E-16), c. 1 mi SW of Jenkinson Lake
1067
Comment
SEINET2042032
Coreopsis bigelovii
George Helmkamp, E. A. Helmkamp
2001-4-26
6472
Kern
Tehachapi Mountains: Oak Crk Rd., 8.9 mi W of Mojave.
1189
Comment
UCR173976
Cornus nuttallii
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10532
El Dorado
Northern Sierra Nevada Mountains, Along Wentworth Springs Road, 11 mi. east of Stumpy Meadows Lake
1777
Comment
UCR197631
Cornus nuttallii
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13645
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
UCR134412
Cornus sericea subsp. occidentalis
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6572
San Luis Obispo
South Coast Range, Irish Hills, Clark Valley Road, 2.8 miles south of Los Osos Valley Road, east of Los Osos
91
Comment
UCR200867
Cornus sericea subsp. sericea
George K. Helmkamp, E. A. Helmkamp
2008-9-15
14106
Placer
Northern Sierra Navada Mountains, along Foresthill Road 26 miles northeast of the city of Forest Hill
1954
Comment
UCR201516
Cornus sericea subsp. sericea
George K. Helmkamp, E. A. Helmkamp
2008-8-20
14020
Placer
Northern Sierra Nevada Mountains, Rainbow exit south from US-80 and east of Big Bend, adjacent to the South Yuba River
1811
Comment
UCR104036
Cotula australis
George K. Helmkamp, E. A. Helmkamp
1997-3-5
1328
Riverside
2.8 mi SE of Gilman Hot Springs
518
Comment
UCR242776
Cotula australis
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15864
Solano
Northern San Joaquin Valley, Pitt School Road, 3.8 miles south of its junction with I-80 and south of Dixon
21
Comment
UCR104839
Crepis capillaris
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-25
2136
Mendocino
North Coast Range, Anderson Valley, Calif. Hwy 128, NW of Boonville
91
Comment
UCR118285
Croton californicus
George K. Helmkamp, E. A. Helmkamp
1998-4-19
3349
San Bernardino
Mojave Desert, northwest side of East Cronese Lake, about 15 miles west of Baker
335
Comment
UCR161814
Croton californicus
George K. Helmkamp, E. A. Helmkamp
2005-2-18
8939
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
CDA25743
Croton setiger
G. K. Helmkamp, E. A. Helmkamp
2007-10-13
13089
San Joaquin
Northern San Joaquin Valley; Along Highway CA-88, 1.0 mile southwest of Clements at Disch Road.
Comment
UCR253631
Croton setiger
George K. Helmkamp, Elizabeth Helmkamp
2012-11-12
20127
El Dorado
East end of Sacramento Valley, El Dorado Hills; 100 yards east of Golden Foothill Parkway on Cypress Point Ct. (cul-de-sac), 0.7 mile south of Windfield Parkway
159
Comment
UCR219014
Crucianella angustifolia
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16356
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
CLARK-A1045-572
Crunocallis chamissoi
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains wet, grassy area; ; Keller Peak 7.5'Q
Comment
UCR94637
Crypsis schoenoides
George K. Helmkamp
1996-9-11
1158
San Diego
Peninsular Range, c. 5 miles south of Calif. Hwy 76 on Couser Canyon Road onto Lilac Rd. to Wills Avocado Ranch
335
Comment
CAS-BOT-BC334216
Cryptantha affinis
George K. Helmkamp; E. A. Helmkamp
2011-8-6
18015
Amador
Northern Sierra Nevada Mountains: along dirt road 0.3 mile E of Bear River Reservoir Road, from a point 0.7 miles S of CA-88
1986
Comment
UCR197351
Cryptantha affinis
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13720
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
UCR67021
Cryptantha affinis
George K. Helmkamp
1990-8-2
s.n.
Mono
Sierra Nevada Mtns, between Mammoth and Lake Mary
2591
Comment
UCR57543
Cryptantha ambigua
George K. Helmkamp
1989-8-1
s.n.
Mono
Sierra Nevada Mtns., West Walker River, at Hwy 395, 4 mi. south of Walker
1890
Comment
CLARK-A1045-1215
Cryptantha angustifolia
George K. Helmkamp
1977-1-22
Imperial
Salton Sea at Desert Shores, along State Highway 86 near Salton Sea; camp area; Oasis 7.5'Q
Comment
SD144007
Cryptantha angustifolia
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2884
Imperial
4.7 mi. N of Winterhaven on Picacho Rd and 1 mi. NW of the All-American Canal.
75
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
UCR123981
Cryptantha angustifolia
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6388
San Bernardino
Mojave Desert, CA Hwy 62, 16.2 mi east of Utah Trail (Twentynine Palms) near Dale Lake
366
Comment
SBBG119609
Cryptantha barbigera
G. K. Helmkamp
1984-5-2
D- 26
Riverside
Big Morongo Cyn, 3-3.5 mi below the caretaker's house at the Big Morongo Preserve
550
Comment
UCR103636
Cryptantha barbigera
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2932
Imperial
Sonoran (Colorado) Desert, Imperial Dam area, just south of the dam on Hwy S-24.
76
Comment
UCR132755
Cryptantha barbigera
George K. Helmkamp
1984-5-2
D- 26
Riverside
Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve
610
Comment
UCR132759
Cryptantha barbigera
George K. Helmkamp
1984-4-29
A- 32 A
San Bernardino
Little San Bernardino Mtns., Big Morongo Canyon near the Riverside Co. line, 2 mi. below the Big Morongo Preserve headquarters
701
Comment
UCR206584
Cryptantha echinella
George K. Helmkamp, Ann Kerchner
2009-7-25
15291
Amador
Sierra Nevada Mountains, south side of CA-88, 3.2 miles west of the Alpine Co. line; near Martin Meadow
2306
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
RSA489121
Cryptantha maritima
George K. Helmkamp
1988-2-28
1
Imperial
Sandy flat just N of Signal Mtn., S of Hwy 98. [Mount Signal 10 km cell; PG-1N, 2E]
31
Comment
CLARK-A1045-773
Cryptantha micrantha
George K. Helmkamp
1977-6-6
San Bernardino
San Bernardino Mountains meadow at the edge of a drying, temporary pool; ; Keller Peak 7.5'Q
2133
Comment
UCR110966
Cryptantha micrantha var. lepida
George K. Helmkamp
1998-6-27
4096
Riverside
Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring
1585
Comment
CLARK-A1045-16
Cryptantha nevadensis
George K. Helmkamp
1977-4-21
San Bernardino
Adelanto 2 miles north of Adelanto, and east of U.S.Highway 395; Creosote Bush scrub area; ; Adelanto 7.5'Q
883
Comment
UCR103304
Cryptantha pterocarya var. pterocarya
George K. Helmkamp
1998-4-4
3149
Riverside
Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd)
457
Comment
CAS-BOT-BC227834
Cryptantha simulans
G. K. Helmkamp; E. A. Helmkamp
2011-7-19
17846
Calaveras
Northern Sierra Nevada Mountains Foothills: Forestry Route 5N75, 1.1 miles west of Boards Crossing bridge over North Fork Stanislaus River
1280
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
CLARK-A1045-1134
Cryptantha torreyana
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
RSA756762
Cryptantha torreyana
George K. Helmkamp, Amy Barnes
2009-7-8
15126
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
SBBG126180
Cryptantha torreyana
G. K. Helmkamp with E. A. Helmkamp
2009-6-11
14957
Shasta
McCumber lake Rd, at S end of McCumber Lake and 3.3 mi NE of its jct with St Hwy 44
1099
Comment
UCR121467
Cryptogramma cascadensis
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5079
Nevada
Northern Sierra Nevada Range, Tahoe Nat. Forest, Donner Pass Rd. (=Hwy 40), 2.2 mi. west of Lake Donner.
1997
Comment
UCD127372
Cymopterus terebinthinus var. californicus
G. K. Helmkamp; E. A. Helmkamp
2007-7-7
12505
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 12.0 miles south of its junction with CA-88.
2549
Comment
SEINET2043121
Cynodon dactylon
George K. Helmkamp, Elizabeth Helmkamp
2000-4-4
5350
San Bernardino
Colorado Desert: Sacramento Spring. Along CA-95, 1.6 mi N of I-40.
396
Comment
UCR188490
Cynodon dactylon
George K. Helmkamp, E. A. Helmkamp
2007-9-30
13047
Sutter
Sacramento Valley, Oak Ave. at its junction with CA-99, about 2.8 miles north of the Feather River crossing
8
Comment
UCR122620
Cynosurus echinatus
George K. Helmkamp, E. A. Helmkamp
2001-5-29
6704
San Benito
South Coast Range, Gabilan Range, 7.1 mi. south of San Juan Bautista on Hwy G-1
488
Comment
UCR173792
Cynosurus echinatus
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10595
El Dorado
Northern Sierra Nevada foothills, along Hwy US-50, 0.6 mile east of White Hall
1055
Comment
UCR175214
Cynosurus echinatus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-4
10296
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
UCR217163
Cynosurus echinatus
George K. Helmkamp, E. A. Helmkamp
2010-5-17
16050
El Dorado
Sierra Nevada Mountains Foothills, Pine Hill Road at the junction with Bertana Court; southeast edge of State Ecological Preserve, 1.6 mi. NW (293 deg. ) of Rescue
459
Comment
UCR246639
Cynosurus echinatus
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19148
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 5.8 miles south of its junction with CA-88, 6.2 mi. SW (246 deg. ) of Bear River Reservoir dam
1465
Comment
UCR171626
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9669
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
UCR209770
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2009-8-14
15464
El Dorado
Sierra Nevada Mountains Foothills, junction of Sand Ridge Road and Cutaway Lane, 2.0 miles west of Bucks Bar Road
642
Comment
UCR241318
Cyperus eragrostis
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19877
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy E-26 (Red Corral/West Point-Pioneer Rd.) just north of the bridge over the North Fork Mokelumne River
613
Comment
UCR91838
Cyperus eragrostis
George K. Helmkamp
1996-5-24
1044
San Luis Obispo
Central Coast, Los Osos, along trail to quarry, 0.6 mile east of South Bay Blvd.
95
Comment
UCR171542
Cyperus esculentus
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9734
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
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
SEINET3246192
Cyperus odoratus
G. K. Helmkamp, E. A. Helmkamp
2009-1
15552
Sutter
Sacramento Valley: along Nicolaus Ave., 2.2 miles northwest of the Placer Co. line, 4.4 miles ENE (86) of Nicolaus
8
Comment
UCR14391
Cyperus rotundus
George K. Helmkamp
1974-7-14
s.n.
Riverside
Riverside, Massachusetts at Iowa Street
Comment
SEINET3271541
Cystopteris fragilis
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11859
El Dorado
Foothills, Northern Sierra Nevada Mountains; Bridal Veil Falls, Esmeralda Creek, along US-50 east of Pacific House
1027
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
CLARK-A1045-197
Dalea fremontii var. minutifolia
George K. Helmkamp
1978-5-6
San Bernardino
Mojave Desert west of Kingston Range; ; Horsethief Springs 15'Q
1066
Comment
SEINET2042028
Dalea mollis
George Helmkamp, E. A. Helmkamp
2001-3-30
6379
San Bernardino
Mojave Desert; CA-62, 16.2 mi E of Utah Tr. (29 Palms) near Dale Lake.
366
Comment
UCR91811
Danthonia californica
George K. Helmkamp
1996-5-24
1049
San Luis Obispo
Central Coast, Los Osos, along trail to quarry, 0.6 mile east of South Bay Blvd.
95
Comment
UCR170415
Daucus carota
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10022
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
UCR173161
Delphinium gracilentum
George K. Helmkamp, Elizabeth Helmkamp
2006-4-27
10225
El Dorado
Northern Sierra Nevada Foothills, 2.1 mi. south of Pleasant Valley Road along French Creek Road, SE of Shingle Springs
369
Comment
UCR176213
Delphinium nuttallianum
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10843
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
UCR190674
Delphinium nuttallianum
George K. Helmkamp
2007-6-29
12424
Amador
Northern Sierra Nevada Mountains, Sandy Cove picnic area southeast of CA-88 beside the west edge of Silver Lake
2244
Comment
UCR197553
Delphinium nuttallianum
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13711
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
UCR249988
Delphinium nuttallianum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20933
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
UCR130991
Delphinium parishii subsp. parishii
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3512
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
SD193347
Delphinium parryi subsp. parryi
G. K. Helmkamp, Elizabeth Helmkamp
2005-5-12
9442
Monterey
8.0 miles west of US 101 on Highway Ca-G-18 in Hames Valley.
341
Comment
UCR140065
Delphinium patens subsp. hepaticoideum
George K. Helmkamp
2004-4-14
8424
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR106727
Delphinium patens subsp. patens
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3803
Santa Clara
Central Coast Range, E of San Jose; Kincaid Road 1.1 mi north of Mt. Hamilton Road. ( =Calif. Hwy 130)
793
Comment
UCR140364
Dendromecon rigida
George K. Helmkamp
2004-4-14
8435
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
SEINET3411998
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19174
Nevada
Northern Sierra Nevada Mountains Foothills: Washington Road, 3.6 miles N of its junction with Ca-20
1006
Comment
UCR191151
Deschampsia elongata
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12304
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 5.4 miles south of Mormon Emigrant Trail, generally east of Jenkinson Lake
1372
Comment
UCR122955
Descurainia pinnata subsp. halictorum
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6455
San Bernardino
Eastern Mojave Desert, 13.5 mi north of Calif. Hwy 62 along US-95 then 0.1 mi E
274
Comment
UCR122407
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2002-4-24
7531
Madera
Western Sierra Nevada foothills, Auberry Rd (Rd 200/North Fork Rd.) 5.0 mi south of North Fork
503
Comment
UCR161984
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2005-3-13
9129
Santa Barbara
South Outer Coast Ranges, Sierra Madre Mountains; Tepusquet Canyon 8.7 mi. south of Calif. Highway 166
396
Comment
UCR171115
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2006-3-26
10106
El Dorado
Northern Sierra Nevada Foothills, ENE of Sacramento; Rock Creek Road, 0.9 mi east of Calif. Highway 193
396
Comment
UCR197543
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13224
Calaveras
San Joaquin Valley / Sierra Nevada Mountains Foothills, along CA-26, 3.7 miles southwest of Valley Springs at Lime Creek Road
143
Comment
UCR198431
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2008-4-30
13367
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
UCR242633
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, E. A. Helmkamp
2010-4-3
15797
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
UCR250685
Dichelostemma capitatum subsp. capitatum
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20348
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
UCR231312
Dichelostemma multiflorum
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17189
Yuba
East edge of Sacramento Valley, Camp Far West Road, 0.9 mile west of the junction at Camp Far West Reservoir
65
Comment
UCR231333
Dichelostemma multiflorum
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17184
Yuba
East edge of Sacramento Valley, Camp Far West Road, 0.3 mile north of the junction with Hokan Lane, vicinity of Camp Far West Reservoir
105
Comment
UCR207903
Dichelostemma volubile
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14691
El Dorado
Sierra Nevada Mountains Foothills, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
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
SEINET4560746
Digitalis purpurea
George K. Helmkamp, E. A. Helmkamp
2011-1
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
CAS-BOT-BC174784
Diplacus aurantiacus
G. K. Helmkamp
2004-5-23
8584
Santa Barbara
Southern Central Coast: Lompoc-Casmalia Rd, 1.5 mi S of the junction to Casmalia
183
Comment
SD237617
Diplacus aurantiacus
G. K. Helmkamp, E. A. Helmkamp
2010-4-23
15931
Placer
Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot 7.5'Q)
156
Comment
SEINET273073
Diplacus parviflorus
George K. Helmkamp, E. A. Helmkamp
1998-1
3697
Santa Clara
Sierra Azul: Hicks Rd at S end of San Jose; 3.2mi S of Camden Av.
152
Comment
SD237621
Diplacus torreyi
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15254
El Dorado
Sierra Nevada Mountains: Wrights Lake Road, 2.7 miles north of its junction with US-50, c. 0.25 mile due S of Chimney Flat (Pyramid Peak 7.5'Q)
2000
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
UCR256671
Dipsacus sativus
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20630
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
SEINET269231
Distichlis spicata
G. Helmkamp
1996-6-11
1116
San Bernardino
San Bernardino Mtns. at the southwest end of Baldwin Lake.
2164
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
UCR121865
Dithyrea californica
George K. Helmkamp, E. A. Helmkamp
2001-3-24
6301
San Bernardino
Southcentral Mojave Desert, 0.3 mile west of CA Hwy 247 on Pipes Canyon Road
1037
Comment
UCR122644
Dithyrea californica
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2842
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
CAS-BOT-BC140641
Dittrichia graveolens
G. K. Helmkamp; E. A. Helmkamp
2009-10-30
15714
El Dorado
Sierra Nevada Mountains Foothills: Country Club Drive 0.1 mile east of its junction with Bass Lake Road, between El Dorado Hills and Cameron Park
343
Comment
CAS-BOT-BC226942
Dittrichia graveolens
George K. Helmkamp; E. A. Helmkamp
2011-11-21
18479
Calaveras
Northern Sierra Nevada Mountain Foothills: along CA-12 at the west end of the city of Burson
125
Comment
SEINET2033393
Dodecatheon hendersonii
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13396
Amador
Sierra Nevada Mountains Foothills: along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
UCR207137
Dodecatheon hendersonii
George K. Helmkamp, E. A. Helmkamp
2009-4-4
14497
El Dorado
Sierra Nevada Mountains Foothills, Happy Valley Road, 0.8 mile west of its junction with Happy Valley Cut-off
607
Comment
RSA752661
Draba verna
George K. Helmkamp, E. A. Helmkamp
2007-3-10
11606
El Dorado
Rattlesnake Bar Rd, 3.0 miles southwest of Calif. Hwy 49, SW of Pilot Hill
390
Comment
UCR206702
Draba verna
George K. Helmkamp, E. A. Helmkamp
2009-3-19
14433
El Dorado
Sierra Nevada Mtns. Foothills, Meadow Brook Road, 1.3 miles east of CA-193 and at the junction with Bear Creek Rd
680
Comment
UCR87265
Draba verna
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
16.1 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR87535
Draba verna
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
35.6 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR248397
Draperia systyla
George K. Helmkamp, Elizabeth Helmkamp
2013-7-25
22023
El Dorado
Northern Sierra Nevada Mountains, Wentworth Springs Road, 7.4 miles east of the junction with Volcanoville Road
1320
Comment
CLARK-A1045-1114
Drosera rotundifolia
George K. Helmkamp
1977-9-1
V
Alpine
Sierra Nevada sphagnum bog; ; Freel Peak 7.5'Q
2346
Comment
UCR88210
Drymocallis lactea var. lactea
George K. Helmkamp
1995-9-21
1- 12 B
Mono
Eastern Sierra Nevada Mountains, south edge of Lake Mary, south of Mammoth Lakes
2805
Comment
RSA710335
Dryopteris arguta
George K. Helmkamp
2004-4-14
8438
Santa Barbara
Santa Inez Mountains: Cold Spring Canyon, along Stagecoach Rd. just off Hwy 154, ca. 5 miles SE of Lake Cachuma.
488
Comment
UCR198485
Dryopteris arguta
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13388 A
Amador
Sierra Nevada Mountains Foothills, along Tiger Creek Road, 0.3 mi east of the turnoff to Tiger Creek Reservoir
774
Comment
UCR218132
Dryopteris arguta
George K. Helmkamp, E. A. Helmkamp
2010-6-26
16385
Placer
Sierra Nevada Mountains Foothills, junction of Canyon Way and Yankee Jim's Road, east of I-80 between Weimar and Colfax
616
Comment
UCR233024
Dysphania botrys
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18327
El Dorado
Northern Sierra Nevada Mountains, Loon Lake Road at the junction to the campground at the south end of the lake
1973
Comment
UCR261628
Dysphania botrys
George K. Helmkamp, Amy Barnes
2014-10-10
23138
Amador
Northern Sierra Nevada Mountains, Bear River Road, 0.1 mile south of it juction with CA-88
1992
Comment
UCR201932
Echinochloa colona
George K. Helmkamp, E. A. Helmkamp
2008-10-9
14228
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
UCR241751
Echinochloa colona
George K. Helmkamp, E. A. Helmkamp
2012-10-9
20009
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
RSA749526
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14208
Yuba
Ostrom #3 Road, 1.2 miles east of junction with CA-65, southeast of Olivehurst
20
Comment
SD236141
Echinochloa crus-galli
G. K. Helmkamp, Elizabeth Helmkamp
2005-9-1
9833
El Dorado
Northern Sierra Nevada Foothills: E of Sacramento; Sand Canyon Road, 0.3 mi E of CA Highway 49 and Logtown Ridge
280
Comment
SEINET2473441
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2007-1
12819
Amador
Northern Sierra Nevada Mountains Foothills; along Hwy CA-49 at the south end of Plymouth
323
Comment
UCR179805
Echinochloa crus-galli
George K. Helmkamp, E. A. Helmkamp
2006-10-20
11543
El Dorado
Northern Sierra Nevada Mountains Foothills, Bucks Bar Road, 3.9 miles south of Pleasant Valley Road, general vicinity of Somerset
625
Comment
UCR140068
Ehrharta calycina
George K. Helmkamp
2004-3-13
8352
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR231322
Eleocharis macrostachya
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17206
Yuba
East edge of Sacramento Valley, junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 deg. ) of Wheatland
56
Comment
SD232558
Elodea nuttallii
George Helmkamp
1996-9-26
1231
Mono
Twin Lakes north of Mammoth Lakes City. Shallow water at the lake edge.
2621
Comment
UCD63240
Elymus glaucus subsp. glaucus
G. K. Helmkamp; E. A. Helmkamp
2007-8-4
12682
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
UCR218234
Elymus glaucus subsp. glaucus
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-2
16436
Placer
Sierra Nevada Mountains Foothills, Iowa Hill Road, 1.9 miles southeast of its junction with Canyon Way in Colfax
415
Comment
UCR256664
Elymus glaucus var. glaucus
George K. Helmkamp, Elizabeth Helmkamp
2013-5-30
20730
Nevada
Northern Sierra Nevada Mountains, along Hwy CA-20, 1.6 miles northeast of Pine Flat Way, north of Scotts Flat Reservoir
1189
Comment
RSA0050420
Elymus stebbinsii
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-15
20879
El Dorado
Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
UCR249173
Elymus stebbinsii
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20879
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
UCR92638
Ephedra viridis
George K. Helmkamp
1993-4-24
s.n.
San Bernardino
Northeastern Mojave Desert, along Smith Talc Road, c. 9 miles east of Tecopa [Pass?, Inyo Co.; probably after Sm. T. Rd. transition to Excelsior Mine Rd.]
1067
Comment
RSA755563
Epilobium
George K. Helmkamp, E. A. Helmkamp
2009-8-19
15509
El Dorado
Wright s Lake Road, 8.6 miles north of its upper junction with Ice House Road
1785
Comment
UCR104838
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-26
2138
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
UCR114370
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2275
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
UCR123906
Epilobium angustifolium subsp. circumvagum
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6849
Plumas
Sierra Nevada Mountains, Calif. Hwy 89, ESE of Lake Almanor at Crescent Mills
976
Comment
CAS-BOT-BC526863
Epilobium brachycarpum
George K. Helmkamp; E. A. Helmkamp
2012-9-7
19762
Amador
Northern Sierra Nevada Mountains Foothills: along CA-49, 1.2 mi N of the jct with Fiddletown Rd at Plymouth
298
Comment
SEINET1004958
Epilobium brachycarpum
G. K. Helmkamp, E. A. Helmkamp
2006-1
11481
Calaveras
Along Hwy CA-26, 0.8 mi east of Ca-49 in the vicinity of Mokulumne Hill.
488
Comment
UCD105375
Epilobium brachycarpum
G. K. Helmkamp; E. A. Helmkamp
2007-10-7
13064
Butte
Northern Sacramento Valley. East Gridley Road at the west edge of the Feather River bridge.
27
Comment
UCR119829
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2000-9-2
5969
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road
137
Comment
UCR179394
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11437
El Dorado
Northern Sierra Nevada Mountains Foothills, West Meadow Road 0.3 mile west of its junction with Ice House Road
1050
Comment
UCR189648
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12774
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 0.9 mile northeast of the junction with Bear River Reservoir Road
2076
Comment
UCR190657
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2007-5-23
12079
Placer
Northern Sierra Nevada Mountains Foothills, junction of Iowa Hill Road and Finning Mill Road (U. S. F. S. Rd #10) in the Sugar Pine Recreation area
1137
Comment
UCR201526
Epilobium brachycarpum
George K. Helmkamp, E. A. Helmkamp
2008-9-28
14172
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
UCR245585
Epilobium brachycarpum
George K. Helmkamp, Amy Barnes
2013-9-24
22346
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
UCR67453
Epilobium canum subsp. canum
George K. Helmkamp
1990-9-5
s.n.
Monterey
Central Coast, 2 miles north of Gorda
46
Comment
UCR193511
Epilobium canum subsp. latifolium
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12942
El Dorado
Northern Sierra Nevada Mountains, along Wright's Lake Road 3.2 miles north of its junction with US-50
1991
Comment
UCD105622
Epilobium ciliatum
G. K. Helmkamp; E. A. Helmkamp
2007-8-26
12811
Amador
Northern Sierra Nevada Mountains. Along Hwy CA-49 at mile-20, 2.1 miles north of Plymouth; beside Blue Indian Creek.
299
Comment
UCR121551
Epilobium ciliatum
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4998
San Mateo
Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek
61
Comment
UCR18539
Epilobium ciliatum
George K. Helmkamp
1974-9-28
s.n.
San Luis Obispo
Central Coast, Morro Bay area, Hazard Cyn, near ocean
34
Comment
UCR250631
Epilobium ciliatum
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12762
Amador
Northern Sierra Nevada Mountains, along the south side of Bear River Reservoir just east of the spillway
1777
Comment
UCR215775
Epilobium ciliatum subsp. ciliatum
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15348
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR178660
Epilobium densiflorum
George K. Helmkamp, E. A. Helmkamp
2006-9-7
11337 A
El Dorado
Northern Sierra Nevada Mountains, Ice House Road about 5.5 miles north of US-50
1637
Comment
UCR179358
Epilobium densiflorum
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11417
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Ice House Road [at Riverton] and US-50 east of Pacific
1000
Comment
UCR183813
Epilobium densiflorum
George K. Helmkamp, E. A. Helmkamp
2006-10-27
11577
El Dorado
Northern Sierra Nevada Mountains Foothills, City of Placerville; along Spring Street, 0.1 mile north of its junction with Calif. Hwy 49
573
Comment
UCR233329
Epilobium densiflorum
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17962
Amador
Northern Sierra Nevada Mountains, Ellis Road, 2.1 miles south of its junction with CA-88
1794
Comment
SEINET13276722
Epilobium glaberrimum subsp. glaberrimum
George K. Helmkamp, Amy Barnes
2012-1
19623
Alpine
Northern Sierra Nevada Mountains: along CA-89/Carson Pass Hwy in West Carson, 1.4 miles east of the junction with CA-88 (Freel Peak 7.5' Q.)
2033
Comment
UCR129538
Epilobium obcordatum
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6833
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
RSA337152A
Epilobium oregonense
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
Angeles Oaks, roadside along CA 38.
1982
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
UCR250597
Equisetum arvense
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20393
Calaveras
Northern Sierra Nevada Mountains Foothills, Along CA-26 (West Point-Pioneer Rd.), at the west side of the bridge over North Fork Mokelumne River
654
Comment
RSA750327
Eragrostis curvula var. curvula
George K. Helmkamp
2004-6-12
8632
Santa Barbara
Along Calif. Hwy 135, 0.9 mi N of San Antonio Rd (S of Orcutt)
152
Comment
UCR100575
Eragrostis mexicana subsp. mexicana
George K. Helmkamp
1997-11-1
2518
Riverside
Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10)
30
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
CLARK-A1045-13
Eremalche exilis
George K. Helmkamp
1977-4-21
San Bernardino
Adelanto 2 miles north of Adelanto, east of U.S. 395; creosote bush scrub; ; Adelanto 7.5' Q
883
Comment
UCD97933
Eremogone kingii var. glabrescens
G. K. Helmkamp; E. A. Helmkamp
2006-8-30
11299
Alpine
Northern Sierra Nevada Mountains; Woods Lake, south of CA-88 and generally SE of Caples Lake. Besides Woods Creek.
2521
Comment
UCD170698
Eremothera refracta
G. K. Helmkamp; E. A. Helmkamp
2001-3-30
6422
San Bernardino
Eastern Mojave Desert: US-95, 8.5 mi south of I-40.
351
Comment
UCR115589
Eriastrum densifolium subsp. densifolium
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5677
San Luis Obispo
Central Coast, between Los Osos and sand dunes west of the end of Howard St.
15
Comment
UCR160757
Eriastrum densifolium subsp. densifolium
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9655
San Luis Obispo
Central Coast Range, along Calif. Hwy 58 (Carrizo Hwy), 22.2 miles east of Santa Margarita; near Camatta Creek
552
Comment
UCR130710
Eriastrum eremicum subsp. eremicum
George K. Helmkamp, E. A. Helmkamp
1998-6-27
4076
Riverside
San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd.
1372
Comment Read comments Nov 13 2018
SD247323
Ericameria arborescens
George K. Helmkamp, E. A. Helmkamp
2013-9-13
22295
Amador
Northern Sierra Nevada Mountains Foothills: Fiddletown Road, 0.4 mile west of its junction with Shake Ridge Road.
977
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
UCR67022
Ericameria arborescens
George K. Helmkamp
1990-9-3
s.n.
San Luis Obispo
Central Coast, south end of Morro Bay, southwest of Baywood Park
15
Comment
SD197674
Ericameria bloomeri
G. K. Helmkamp, E. A. Helmkamp
2008-8-8
14001
Alpine
Northern Sierra Nevada Mountains: along Blue Lake road, 8.5 miles south of its junction with CA-88.
2497
Comment
UCR202751
Ericameria bloomeri
George K. Helmkamp, E. A. Helmkamp
2008-8-8
14001
Alpine
Northern Sierra Nevada Mountains, along Blue Lake road, 8.5 miles south of its junction with CA-88
2497
Comment
SD243084
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 milse NNE of its junction with Wentworth Springs Road (Loon Lake 7.5'Q)
1942
Comment
UCR132553
Ericameria ericoides
George K. Helmkamp
2003-9-8
8121
San Luis Obispo
Central Coast, Saltwater ocean inlet 0.2 mile SW of Oceano Airport
6
Comment
RSA613935
Ericameria linearifolia
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3213
San Luis Obispo
Elkhorn Grade Rd, 6.3 mi. NW of jct with CA hwy 33 (roughly W of Maricopa).
549
Comment
UCR58455
Ericameria pinifolia
George K. Helmkamp
1989-10-7
s.n.
Riverside
San Jacinto Mtns, N slope of Thomas Mtn, 1 mi. SW of Hwy 74 on Thomas Mtn Road
1500
Comment
SD197675
Erigeron
G. K. Helmkamp, E. A. Helmkamp
2008-8-1
13946
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road, 2.2 miles south of the entrance to Wright's Lake.
2070
Comment
SD243085
Erigeron breweri
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16818
El Dorado
Northern Sierra Nevada Mountains: near abandoned Iron Mountain ski resort, road spur parallel to Mormon Emigrant Trail about 0.2 mile west of its junction with CA-88 (Tragedy Spring 7.5'Q)
2238
Comment
UCR242353
Erigeron breweri
George K. Helmkamp, E. A. Helmkamp
2010-8-20
16821
El Dorado
Northern Sierra Nevada Mountains, junction of Forest Routes 10N98 and 10N39, about 0.1 mile north of Silver Fork Road, 2.4 mi. NW of Hwy 88
2091
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
RSA614914
Erigeron coulteri
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2258
Mono
South side of Lake Mary, South of Mammoth Lakes.
2744
Comment
UCR27490
Erigeron foliosus var. foliosus
George K. Helmkamp
1982-9-17
s.n.
Kern
4.2 mi. above snow gate on the road to Mt. Pinos
2134
Comment
UCR217394
Erigeron foliosus var. hartwegii
George K. Helmkamp, E. A. Helmkamp
2010-5-17
16073
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
UCD131958
Erigeron glacialis var. glacialis
G. K. Helmkamp; E. A. Helmkamp
2006-7-31
11047
El Dorado
Northern Sierra Nevada Mountains, along Wright's Lake Road (Forestry Route 4), 3.3. miles north of Hwy US-50.
2049
Comment
UCD131959
Erigeron glacialis var. glacialis
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11133
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
UCR106444
Erigeron glaucus
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2149
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
RSA0012128
Erigeron inornatus var. inornatus
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16867
Nevada
Eagle Lakes Road, about 0.5 mile west of its junction with Carlyle Road, 5.8 mi. NE (66deg.) of Emigrant Gap, N of I-80
1655
Comment
CLARK-A1045-525
Erigeron parishii
George K. Helmkamp
1979-6-5
#3
San Bernardino
San Bernardino Mountains limestone slope above Spring; ; Big Bear City 7.5'Q
1371
Comment
UCR176275
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, E. A. Helmkamp
2006-8-3
11133
Alpine
Northern Sierra Nevada Mountains, Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake
2509
Comment
UCR196950
Erigeron peregrinus subsp. callianthemus
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13824
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR232619
Eriochloa contracta
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18406
Sutter
Northern Sacramento Valley, Live Oak, Larkin Road, 0.3 mile south of Live Oak and just west of CA-99
34
Comment
UCD119256
Eriodictyon californicum
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-20
10504
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
UCR160752
Eriodictyon californicum
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9523
Monterey
Outer Central Coast Ranges; Santa Lucia Range, 5.0 mi east of Calif. Hwy 1 along Los Burros Road
826
Comment
UCR253227
Eriodictyon californicum
George K. Helmkamp, Amy Barnes
2014-4-23
22815
Placer
Sierra Nevada Mountains Foothills, Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill
720
Comment
CAS-BOT-BC188071
Eriodictyon tomentosum
G. Helmkamp
1994-5-18
91 -2
San Luis Obispo
Alamo Cyn, 7 miles E of US101 on CA166 then 4 miles N (generally, NE of Twitchell reservoir)
213
Comment
RSA614910
Eriogonum baileyi var. baileyi
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2265
Mono
South side of Lake Mary, South of Mammoth Lakes.
2744
Comment
SD255828
Eriogonum baileyi var. baileyi
George K. Helmkamp, Amy Barnes
2014-8-27
23045
Mono
Northern Sierra Nevada Mountains: Monitor Pass along CA-89, 0.6 mile south of the junction with Big Springs Road (Topaz Lake 7.5'Q)
2360
Comment
UCR15443
Eriogonum baileyi var. baileyi
George K. Helmkamp
1977-9-1
s.n.
El Dorado
Sierra Nevada Mtns., Grass Lake at Luther Pass
2356
Comment
UCR99907
Eriogonum baileyi var. baileyi
George K. Helmkamp
1997-9-29
2437
Inyo
Sierra Nevada Mountains, Onion Valley Road, 7.9 mi west of Hwy US-395 from Independence
2159
Comment
UCR79297
Eriogonum davidsonii
George K. Helmkamp
1993-9-12
23- 06
San Bernardino
San Bernardino Mtns., edge of Burns Canyon
1375
Comment
UCR13820
Eriogonum deflexum
George K. Helmkamp
1973-6-15
s.n.
Inyo
Owens Valley, Owens River at Pleasant Valley, near Mono county line
1372
Comment
UCR100346
Eriogonum deflexum var. deflexum
George K. Helmkamp
1997-9-30
2499
Inyo
White Mountains, [Deep Springs Valley], east side of White Mountains
1585
Comment
UCR14591
Eriogonum deserticola
George K. Helmkamp
1975-3-24
s.n.
Imperial
Sonoran (Colorado) Desert, Sand dunes immediately [west] of Glamis
40
Comment
OBI43748
Eriogonum hoffmannii
G. K. Helmkamp
1986-9-28
s.n.
Inyo
Furnace Crk wash, along hwy 190 between Death Valley jctn and Furnace Crk, 1.5 mi E of D.V. Nat. monument border
Comment
SBBG127559
Eriogonum marifolium
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15257
El Dorado
Wrights Lake Rd, 4.1 mi N of its jct with US-50 and at the N side of Lyons Crk crossing
2015
Comment
UCR136224
Eriogonum microthecum var. corymbosoides
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5316
San Bernardino
San Bernardino Mountains, junction of 2N02 (probably Round Valley Rd.) and Calif. Hwy 38 SE of Baldwin Lake
2454
Comment
CLARK-A1045-971
Eriogonum nidularium
George K. Helmkamp
1977-6-11
A
Kern
Red Rock Canyon Southwest edge of El Paso Mountains; entry to Canyon; junction of US Highway 6 and road to California City; ; Cantil 7.5'Q
761
Comment
UCR100356
Eriogonum nidularium
George K. Helmkamp
1997-9-30
2487
Inyo
White Mountains, [Deep Springs Valley], east side of White Mountains
1585
Comment
UCR14648
Eriogonum nidularium
George K. Helmkamp
1975-6-6
s.n.
San Bernardino
Eastern Mojave Desert, Clark Mountain [area, Mescal Range], Mountain Pass, 0.5 mi south of Interstate 15
1463
Comment
RSA0035527
Eriogonum nudum
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-5
20791
Sierra
Along CA-49, 1.9 miles NE of the Yuba County line, NE of Camptonville
796
Comment
SBBG127573
Eriogonum nudum var. deductum
G. K. Helmkamp, E. A. Helmkamp
2009-7-30
15331
Calaveras
Ganns Meadow Drive just S of its jct with CA-4, 16.7 mi NE of Arnold
2067
Comment
SBBG129027
Eriogonum nudum var. deductum
G. K. Helmkamp, E. A. Helmkamp
2013-8-14
22245
Alpine
CA-4, 12.4 mi SW of the CA-89 jct and just N of Kinney Reservoir
2540
Comment
UCD100562
Eriogonum nudum var. deductum
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11001
El Dorado
Northern Sierra Nevada Mtns., Echo Summit along Hwy US-50 at entrance to the road maintenance station.
2245
Comment
UCD100567
Eriogonum nudum var. deductum
G. 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
UCR179345
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2006-9-12
11368
El Dorado
Northern Sierra Nevada Mountains, Along Calif. Hwy 89, 1.2 miles west of the Alpine County line. General area of Luther Pass and Grass Lake
2363
Comment
UCR219269
Eriogonum nudum var. deductum
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16528
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
UCR249873
Eriogonum nudum var. deductum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20905
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail at the junction with Pilliken Road
1825
Comment
UCR250150
Eriogonum nudum var. deductum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20927
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, north side of its junction with Mormon Emigrant Trail
2188
Comment
SEINET11260118
Eriogonum nudum var. nudum
George K. Helmkamp
2007-7-7
12474
El Dorado
Northern Sierra Nevada Mountains: along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area.; 0
2338
Comment
UCR240947
Eriogonum nudum var. nudum
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19899
Placer
Northern Sierra Nevada Mountains, junction of Blue Canyon Road and Putt Road, just south of I-80, west of Emigrant Gap
1634
Comment
UCD100546
Eriogonum nudum var. oblongifolium
G. K. Helmkamp; E. A. Helmkamp
2007-9-1
12860
El Dorado
northern Sierra Nevada Mountains, Happy Valley cutoff road 0.2 mile southeast of its junction with CA-E-16 (generally northeast of Somerset.)
607
Comment
UCR170817
Eriogonum nudum var. oblongifolium
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9940
Placer
Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove)
1805
Comment
UCR205162
Eriogonum nudum var. oblongifolium
George K. Helmkamp, E. A. Helmkamp
2008-10-30
14306
Amador
Northern Sierra Nevada Mountains Foothills, along CA-124 at the north boundary of Ione
91
Comment
UCR122610
Eriogonum plumatella
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5296
San Bernardino
San Bernardino Mountains, 5.7 miles up Burns Cyn Rd from Rimrock Rd., NW of Pioneertown
1768
Comment
UCD100883
Eriogonum roseum
G. K. Helmkamp; E. A. Helmkamp
2007-9-1
12858
El Dorado
northern Sierra Nevada Mountains; Happy Valley cutoff road, 0.2 mile southeast of its junction with CA-E-16 (generally northeast of Somerset.)
607
Comment
CLARK-A1045-549
Eriogonum saxatile
George K. Helmkamp
1977-6-5
San Bernardino
San Bernardino Mountains 5.7 miles east of Cajon Junction, off Interstate Highway 15; Cajon 7.5'Q
Comment
SD143777
Eriogonum thomasii
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2889
Imperial
4.7 mi. N of Winterhaven on Picacho Rd & 1 mi. NW of the All-American Canal
75
Comment
UCR103293
Eriogonum thomasii
George K. Helmkamp
1998-3-30
2994
San Bernardino
Mojave Desert, Dale Dry Lake, east of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR104806
Eriogonum thomasii
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2740
Riverside
Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd.
488
Comment
CLARK-A1045-212
Eriogonum trichopes
George K. Helmkamp
1979-4-18
Riverside
Indio Hills Dillon Road at dry wash; Lost Horse Mtn. 15'Q
Comment
UCR134706
Eriogonum umbellatum var. dichrocephalum
George K. Helmkamp, E. A. Helmkamp
1998-8-11
4289
Inyo
White Mountains, along White Mtn. Rd. and west of the Bristlecone Pine boundary; 0.5 miles northwest of Shulman Grove
3079
Comment
UCR257661
Eriogonum umbellatum var. nevadense
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19489
Nevada
Northern Sierra Nevada Mountains, Stampede Meadows Road, c. 0.65 mile south of the Sierra County line
1738
Comment
CAS-BOT-BC261817
Eriogonum wrightii var. subscaposum
G. K. Helmkamp; E. A. Helmkamp
2009-8-19
15498
El Dorado
Sierra Nevada Mountains: along Ice House Road at SW shore of Loon Lake, 2.6 miles south of its end on the north side of the lake
1973
Comment
SD225078
Eriogonum wrightii var. subscaposum
G. K. Helmkamp
1997-9-29
2438
Inyo
Sierra Nevada Mtns; Onion Valley Rd, 7.9 mi W of US-395 from Independence.
Comment
CLARK-A1045-1172
Eriophorum gracile
George K. Helmkamp
1977-9-3
XI
Alpine
Sierra Nevada sphagnum bog; ; Freel Peak 7.5'Q
2346
Comment
UCR103962
Eriophyllum confertiflorum
George K. Helmkamp
1997-6-21
2059
San Luis Obispo
Central Coast, Questa Ridge north of San Luis Obispo and 0.4 mi west of radio towers
854
Comment
UCR103967
Eriophyllum confertiflorum
George K. Helmkamp
1997-6-22
2077
San Luis Obispo
Central Coast, South end of Montana de Oro State Park
15
Comment
UCR115807
Eriophyllum confertiflorum var. confertiflorum
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5695
San Luis Obispo
Central Coast, between Los Osos and sand dunes west of the end of Howard St.
15
Comment
UCR157983
Eriophyllum confertiflorum var. confertiflorum
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4137
Kern
Tehachapi Mtns, 2.2 miles east of the Keene turnoff from Calif. Hwy 58 on Woodford to Tehachapi road
793
Comment
UCR158601
Eriophyllum confertiflorum var. confertiflorum
George K. Helmkamp, E. A. Helmkamp
2005-4-16
9350
Santa Barbara
Outer South Coast Range, Sierra Madre Mountains, 1.1 mi south of Calif. Hwy 166 on Miranda Pines Road
526
Comment
SBBG128592
Eriophyllum lanatum var. achilleoides
G. K. Helmkamp, E. A. Helmkamp
2011-8-6
17961
Amador
Ellis Rd, 2.1 mi S of its jct with CA-88
1794
Comment
SD239591
Eriophyllum lanatum var. achilleoides
G. K. Helmkamp, E. A. Helmkamp
2009-6-29
15061
El Dorado
Sierra Nevada Mountains Foothills: Ice Housse Road, 0.2 miles north of its junction with CA-50, c. 7.3 miles ENE (83a^z) of Pollock Pines.
989
Comment
SD260181
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20620
Calaveras
Northern Sierra Nevada Mountains Foothills: Poloma Road at its junction with Cosgrove Creek Road, 3 miles NE (30a^z) of Valley Springs. Area with scattered farm buildings.
278
Comment
UCR193285
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12354
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
UCR249626
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20861
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
UCR249641
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, Elizabeth Helmkamp
2013-6-5
20781
Sierra
Northern Sierra Nevada Mountains Foothills, Along CA-49, 1.7 miles west of Goodyears Bar, c. 11 miles NE of Yuba Co. line
793
Comment
SD237319
Eriophyllum lanatum var. croceum
G. K. Helmkamp, E. A. Helmkamp
2009-6-29
15073
El Dorado
Sierra Nevada Mountains: Ice House Road, 7.6 miles north of its junction with CA-50, c. 10.5 air miles NE (74a^z) of Pollock Pines.
1641
Comment
UCR207438
Eriophyllum lanatum var. croceum
George K. Helmkamp, E. A. Helmkamp
2009-7-22
15255
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
UCR209733
Eriophyllum lanatum var. croceum
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15422
Placer
Sierra Nevada Mountains, Forest Hill Road, 20.5 miles northeast of the city of Foresthill
1662
Comment
RSA795040
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17961
Amador
Ellis Road, 2.1 miles south of its junction with CA-88
1794
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
SEINET11261800
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, E. A. Helmkamp
2012-5-3
18886
El Dorado
Northern Sierra Nevada Mountains Foothills: Forebay Road, 4.3 miles N of Pollock Pines.; 0
1046
Comment
UCR173277
Eriophyllum lanatum var. grandiflorum
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10441
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along Forest Hill Road, 1.8 mi. NE of its junction with Calif. Hwy 49 at the middle fork of the American River
370
Comment
UCR122315
Eriophyllum lanatum var. integrifolium
George K. Helmkamp, E. A. Helmkamp
1997-9-9
2312
Alpine
Sierra Nevada Mountains, Leviathan Lookout Road at the S and W sides of Leviathan Peak, NW of Monitor Pass
2683
Comment
UCR189146
Eriophyllum lanatum var. integrifolium
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12556
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road about nine miles south of its junction with CA-88
2511
Comment
UCR129520
Eriophyllum pringlei
George K. Helmkamp, E. A. Helmkamp
1998-5-20
4015
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
UCR118353
Eriophyllum staechadifolium
George K. Helmkamp, E. A. Helmkamp
2000-9-1
5956
San Luis Obispo
Los Osos, c. 0.5 miles NW of Hazard Cyn., between Howard St. and sand dunes
6
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
UCR233123A
Erodium botrys
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17328
Calaveras
Northern Sierra Nevada Mountains Foothills, Ridge Road, 1.9 rd. miles southeast of CA-26, 1.8 air mi. southeast (130 deg. ) of Glencoe
863
Comment
UCR140133
Erodium moschatum
George K. Helmkamp
2004-2-19
8299
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park, along Mesa View Dr (Calif. Hwy 1), 0.2 mi south of the jct with Halcyon Rd.
61
Comment
UCR191094
Erysimum capitatum var. capitatum
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12329
Placer
Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20
1610
Comment
UCR206782
Erysimum capitatum var. capitatum
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15214
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
SD247377
Erysimum capitatum var. perenne
George K. Helmkamp, E. A. Helmkamp
2012-6-19
19249
Placer
Northern Sierra Nevada Mountains: Robinson's Flat, 27 miles east of Forest Hill at the end of Forest Hill Road.
2040
Comment
UCR209742
Erysimum perenne
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15438
Placer
Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill
2034
Comment
SD247506
Erythranthe cardinalis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-8-2
22071
Amador
Northern Sierra Nevada Mountains Foothills: SE of Pioneer along CA-26, north side of North Fork Mokelumne River (Weset Point 7.5'Q)
627
Comment
CAS-BOT-BC248287
Erythranthe guttata
George K. Helmkamp; E. A. Helmkamp
2011-10-13
18417
El Dorado
Northern Sierra Nevada Mountains: Foothills: Forebay Road, 8.1 miles northwest of Pollock Pines, at north side of bridge over the South Fork American River
596
Comment
UCR15496
Erythranthe rubella
George K. Helmkamp, E. A. Helmkamp
1978-5-29
s.n.
Mono
Along the East Walker River 1 mile from the Nevada border, [off Hwy 182]
1825
Comment
SEINET9261998
Eschscholzia caespitosa
George K. Helmkamp
2013-1
20176
Calaveras
Central Sierra Nevada Foothills: ALong the north side of CA-26 just east of the west junction with Lime Creek Road (Valley Springs 7.5 Q)
223
Comment
UCR104967
Eschscholzia caespitosa
George K. Helmkamp
1997-6-20
2052
San Luis Obispo
Central Coast, Los Osos, c. 0.2 mi. NE of Buckskin & Martingale
27
Comment
UCR197316
Eschscholzia caespitosa
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13211
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
UCR247466
Eschscholzia caespitosa
George K. Helmkamp, E. A. Helmkamp
2007-3-25
11709
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
UCR161685
Eschscholzia californica
George K. Helmkamp, E. A. Helmkamp
2005-2-24
8964
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
UCR122958
Eschscholzia glyptosperma
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6425
San Bernardino
Eastern Mojave Desert, US-95, 8.5 mi south of I-40.
351
Comment
SD241118
Eschscholzia lobbii
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17163
Yuba
Sacramento Valley: along Camp Beale Highway/Spenceville Road, c. 1.75 miles northeast of Wheatland (Wheatland 7.5'Q)
43
Comment
SD143752
Eschscholzia minutiflora
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2878
Imperial
4.7 miles north of Winterhaven on Picacho Road and 1.0 mile northwest of the All-American Canal.
75
Comment
UCR104810
Eschscholzia parishii
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2735
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd.
488
Comment
SD247306
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12755
Amador
Northern Sierra Nevada Mountains: along CA-88, 3.5 miles south of its junction with Morman Emigrant Trail.
2146
Comment
SEINET4137624
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16914
Amador
Northern Sierra Nevada Mountains; Dufrene Road, 0.7 miles E of junction with CA-88 north of Lower Bear River Reservoir
Comment
UC1950985
Eucephalus breweri
G. K. Helmkamp, E. A. Helmkamp
2005-9-23
9919
El Dorado
Northern Sierra Nevada Foothills: Wright's Lake Road (Forest Road 4) ca. 4.0 road mi N of US-50 (NE of Kyburz) Pyramid Peak 7.5' Quad.
Comment
UCR178742
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2006-8-30
11294
Alpine
Northern Sierra Nevada Mountains, Woods Lake, south of Calif. Hwy 88 and generally SE of Caples Lake
2521
Comment
UCR205981
Eucephalus breweri
George K. Helmkamp, Mary Alice Barnes, Amy Barnes
2008-7-28
13913
El Dorado
Northern Sierra Nevada Mountains, Wrights Lake Road, 3.4 miles north of its junction with CA Hwy 50
2043
Comment
UCR229556
Eucephalus breweri
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17901
Placer
Northern Sierra Nevada Mountains, Bowman Lake Road, 0.9 mile north of its junction with CA Hwy 20, 0.85 mi. NE (23 deg. ) of Emigrant Gap and N of I-80
1434
Comment
UCR61713
Eucrypta chrysanthemifolia
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
UCR161926
Eucrypta chrysanthemifolia var. chrysanthemifolia
George K. Helmkamp, E. A. Helmkamp
2005-3-1
9003
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
CLARK-A1045-252
Eucrypta micrantha
George K. Helmkamp
1978-3-14
San Bernardino
Cady Mountains rocky slope along dry wash; east end of Cady Mountains; Cady Mt. 15'Q
Comment
CLARK-A1045-771
Euphorbia albomarginata
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
CLARK-A1045-1280
Euphorbia arizonica
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
SEINET11261856
Euphorbia crenulata
George Helmkamp, E. A. Helmkamp
2012-5-11
18943
Placer
Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.2 miles N of its junction with Forest Hill Road (Foresthill 7.5' Q.); 0
1104
Comment
UCR235502
Euphorbia crenulata
George K. Helmkamp, E. A. Helmkamp
2012-5-11
18943
Placer
Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.2 miles north of its junction with Forest Hill Road
1104
Comment
UCR100881
Euphorbia eriantha
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2691
Riverside
Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns.
198
Comment
UCR115802
Euphorbia maculata
George K. Helmkamp, E. A. Helmkamp
2000-10-17
6224
San Diego
Peninsular Range, Lawrence Welk Commercial Complex, c. 1.5 miles west of the Oat Hills, and south of Moosa Canyon
299
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
UCD142629
Euphorbia nutans
G. K. Helmkamp; E. A. Helmkamp
2007-9-22
12991
El Dorado
Northern Sierra Nevada Mountains; along Pleasant Valley Road (Hwy CA-49) 0.8 mile west of its junction with Missouri Flat Road in Diamond Springs.
531
Comment
UCD142630
Euphorbia nutans
G. K. Helmkamp; E. A. Helmkamp
2006-10-18
11532
El Dorado
Northern Sierra Nevada Mountains; Diamond Springs; village along Hwy CA-49 south of Placerville.
539
Comment
UCR179809
Euphorbia nutans
George K. Helmkamp, E. A. Helmkamp
2006-10-18
11532
El Dorado
Northern Sierra Nevada Mountains Foothills, Diamond Springs; village along Calif. Hwy 49 south of Placerville
540
Comment
UCR200880
Euphorbia nutans
George K. Helmkamp, E. A. Helmkamp
2008-9-16
14121
El Dorado
Foothills, northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park
530
Comment
UCR209766
Euphorbia nutans
George K. Helmkamp, E. A. Helmkamp
2009-8-14
15465
El Dorado
Sierra Nevada Mountains Foothills, junction of Sand Ridge Road and Cutaway Lane, 2.0 miles west of Bucks Bar Road
642
Comment
SD240986
Euphorbia oblongata
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17564
Calaveras
Northern Sierra Nevada Mountains Foothills: Winton Road, 0.8 mil northeast of CA-26 at West Point (West Point 7.5'Q)
977
Comment
UCR206296
Euphorbia peplus
George K. Helmkamp, E. A. Helmkamp
2009-5-29
14871
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Diamond Springs
530
Comment
UCR89557
Euphorbia polycarpa
George K. Helmkamp
1994-3-10
42- 4
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
CLARK-A1045-1315
Euphorbia serpyllifolia subsp. hirtula
George K. Helmkamp
1977-9-23
San Diego
along Camino Ruiz two blocks south of Mira Mesa boulevard, a roadside weed; Del Mar 7.5'Q
Comment
UCR45848
Euphorbia setiloba
George K. Helmkamp
1986-9-27
s.n.
San Bernardino
Eastern Mojave Desert., 0.5 mi south of Granite Pass along Kelbaker Road, c. 14 mi south of Kelso
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
SEINET3245945
Euthamia occidentalis
G. K. Helmkamp, E. A. Helmkamp
2009-1
15673
El Dorado
Sierra Nevada Mountains Foothills: Lake Oaks Mobile Home Park, Patterson Dr. and CA-49 in Diamond Springs (Placerville 7.5')
520
Comment
UCR253794
Euthamia occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20069
San Joaquin
San Joaquin Valley, Rock Creek, at East Sonora Road, 1.3 miles southeast of CA-4
50
Comment
CAS-BOT-BC167344
Fagonia laevis
G. K. Helmkamp; E. Helmkamp
1998-1-24
2597
Imperial
4.2 mi. N of Winterhaven on Picacho Rd, where the road crosses the canal
91
Comment
UCR103356
Fagonia laevis
George K. Helmkamp, E. Helmkamp
1998-1-24
2597
Imperial
Sonoran (Colorado) Desert, 4.2 mi. north of Winterhaven on Picacho Rd, where the road crosses the canal.
91
Comment
UCR104005
Fagonia laevis
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2657
Riverside
Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd.
101
Comment
HSC79229
Festuca arundinacea
G. K. Helmkamp
1984-4-29
- 54
San Bernardino
Big Morongo Preserve in Big Morongo Canyon, S of town of Morongo Valley.
Comment
OBI37300
Festuca arundinacea
G. Helmkamp
1985-4-30
445
San Bernardino
Morongo Cyn. SE of Morongo Valley
762
Comment
SD244054
Festuca arundinacea
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19367
El Dorado
Northern Sierra Nevada Mountains: Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50.
2078
Comment
UCR241741
Festuca arundinacea
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19367
El Dorado
Northern Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50
2078
Comment
SD178095
Festuca bromoides
G. K. Helmkamp
2004-2-29
8321
San Luis Obispo
Central Coast: Nipomo Mesa, Nipomo, Orchard Ave. 0.1 mile northwest of Division St.
116
Comment
SD239531
Festuca bromoides
George K Helmkamp, E. A. Helmkamp
2012-4-4
18692
Calaveras
Northern San Joaquin Valley: along CA-26, 0.1 mile west of its junction with Milton road, between Linden and Valley Springs (Valley Springs SW 7.5'Q)
67
Comment
UCR161227
Festuca dertonensis
George K. Helmkamp, E. A. Helmkamp
2005-3-5
9038
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
UCR209520
Festuca dertonensis
George K. Helmkamp, E. A. Helmkamp
2008-6-9
13629 B
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
UCR258223
Festuca dertonensis
George K. Helmkamp, Amy Barnes
2013-3-28
20252
Yuba
Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road
30
Comment
SEINET13262896
Festuca microstachys var. microstachys
George K. Helmkamp
2014-1
22934
Calaveras
along Winton Road along the north side of Wilson Lake
1128
Comment
SEINET3821915
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15833
San Joaquin
Northeast San Joaquin Valley, Collier Road, 0.1 mile west of its junction with CA-88, 1.83 mi NE (27 degrees) of Clements 7.5' Q)
47
Comment
UCR187073
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2007-5-6
11942
El Dorado
Foothills, northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park, Diamond Springs
524
Comment
UCR232260
Festuca myuros
George K. Helmkamp, E. A. Helmkamp
2011-3-12
17076
San Joaquin
Upper San Joaquin Valley, Buena Vista Road, 0.1 mile east of its junction with CA-88
67
Comment
UCR207843
Festuca myuros var. hirsuta
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14463
San Joaquin
San Joaquin Valley, junction of Collier Road and CA-88, about 0.2 mile north of the Mokelumne River
43
Comment
UCR253478
Festuca myuros var. hirsuta
George K. Helmkamp
2014-4-5
22689
Amador
Eastern edge of San Joaquin Valley/lower Sierra Nevada Foothills, Sutter Creek along West Marlette Street, 0.1 mile east of Dave Brubeck Road, west end of city of Ione
85
Comment
SEINET13262630
Festuca perennis
George K. Helmkamp, Mary Alice Barnes
2013-1
20626
Calaveras
Poloma Road at its junction with Cosgrove Creek Road, 3 miles NE (30 deg. ) of Valley Springs
279
Comment
UCR173360
Festuca perennis
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10387
Nevada
Northern Sierra Nevada Mtns., Cedarsong Road, 0.1 mi. NE of Calif. Hwy 49 (NW of Nevada City)
637
Comment
UCR250261
Festuca perennis
George K. Helmkamp, Elizabeth Helmkamp
2013-4-13
20332
Nevada
Northern Sierra Nevada Mountains Foothills, Wolf Road, 1.6 miles northwest of its junction with CA-49
405
Comment
UCR253257
Festuca perennis
George K. Helmkamp, Amy Barnes
2014-4-7
22725
Sacramento
Sacramento Valley, Clay East Road, 1 mile east of its junction with CA-104
52
Comment
UCD65780
Festuca trachyphylla
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-5-31
10585
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road just north of Hwy US-50.
1664
Comment
RSA0094838
Filago gallica
George K. Helmkamp, Amy Barnes
2014-5-8
22865
El Dorado
Sierra Nevada Mountains Foothills. along CA-49 near Ramales Lane, c. 0.7 mile north of Union Mine Road junction.
282
Comment
UCR256510
Filago gallica
George K. Helmkamp, Amy Barnes
2014-5-8
22865
El Dorado
Sierra Nevada Mountains Foothills, along CA-49 near Ramales Lane, c. 0.7 mile north of Union Mine Road junction
282
Comment
SEINET3245640
Foeniculum vulgare
G. K. Helmkamp, E. A. Helmkamp
2008-1
14304
Amador
Northern Sierra Nevada Mountains Foothills: junction of CA-49 and Fiddletown Road at the north end, but within the city limits of Plymouth
311
Comment
UCR121516
Fragaria vesca
George K. Helmkamp, E. A. Helmkamp
2000-6-19
5788
Mendocino
North Coast Range, Calif. Hwy 20 (Fort Bragg-Willits Rd) 6.8 mi east of US-1, southeast of Fort Bragg
152
Comment
SBBG128988
Fragaria vesca
G. K. Helmkamp, E. A. Helmkamp
2011-7-7
17649
El Dorado
Capps Crossing (Bonnetti) Rd, 2.8 mi S of its jct with Mormon Emigrant Trail
1297
Comment
UCD113129
Frangula rubra
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12068
Placer
Nothern Sierra Nevada Mountains; Sugar Pine Road, 0.2 mile northwest of Forest Hill Road.
1360
Comment
UCR118343
Frankenia salina
George K. Helmkamp, E. A. Helmkamp
2000-9-1
5953
San Luis Obispo
Los Osos, c. 0.5 miles NW of Hazard Cyn., between Howard St. and sand dunes
6
Comment
UCR233650
Fraxinus latifolia
George K. Helmkamp, E. A. Helmkamp
2011-7-17
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 deg. ) of Peardale
686
Comment
UCR130662
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 south of Japatul Valley Rd & c. 6 mi airline SSW of junction of Calif. Hwy 79 & I-8
716
Comment
UCR176279
Fritillaria
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10448
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road
422
Comment
UCR235390
Fritillaria atropurpurea
George K. Helmkamp, E. A. Helmkamp
2012-5-11
18952
Placer
Northern Sierra Nevada Mountains Foothills, Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road
1041
Comment
UCD121685
Galium aparine
G. K. Helmkamp; E. A. Helmkamp
2007-3-10
11601
El Dorado
Northern Sierra Nevada Mountains Foothills: Rattlesnake Bar Rd, 3.0 miles southwest of CA-49, SW of Pilot Hill.
390
Comment
UCD121689
Galium aparine
G. K. Helmkamp; E. A. Helmkamp
2007-4-23
11801
Amador
Northern Sierra Nevada Mountains: junction of Tonzi Road and CA-124 about 7 miles north of Ione.
229
Comment
UCD121691
Galium aparine
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11832
Calaveras
Northern Sierra Nevada Mountains: along CA-49, 1 mile west of Mokelumne Hill, 1.7 miles south of the Amador County line.
370
Comment
UCR218143
Galium aparine
George K. Helmkamp, Amy Barnes
2010-5-7
16003
Calaveras
Sierra Nevada Mountains Foothills, Mountain Ranch Road, 3.2 miles east of San Andreas
436
Comment
UCR249570
Galium aparine
George K. Helmkamp, Elizabeth Helmkamp
2013-6-15
20855
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.9 mile south of its junction with US-50 in Kyburz
1364
Comment
SD146164
Galium bifolium
G. K. Helmkamp, E. A. Helmkamp, A. Kerchner
1999-6-29
5021 A
Placer
Northern Sierra Nevada Range: N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon
2134
Comment
UCR249552
Galium bifolium
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20948
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
SBBG128976
Galium bolanderi
G. K. Helmkamp, E. A. Helmkamp
236-Aug-2010
16864
Nevada
Eagle Lakes Rd, ca. 0.5 mi W of its jct with Carlyle Rd, 5.8 mi NE (66 deg) of Emigrant Gap, N of I-80
1655
Comment
UCR123146
Galium californicum subsp. californicum
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6778
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
CAS-BOT-BC217440
Galium californicum subsp. luciense
G. K. Helmkamp; E. A. Helmkamp
1999-5-21
4862
Monterey
Willow Crk. Rd., 6.3 mi. E of CA-1 N of Gorda, Santa Lucia Mtns.
1036
Comment
VVC463
Galium parishii
G. K. Helmkamp
1995-10-28
1 -5
San Bernardino
San Bernardino Mtns, Arrastre Cteek 1/2 mile NE of CA 38 on Round Valley Rd (2N01), 6.5 mi SE of Big Bear City
2439
Comment
UCR106717
Galium parisiense
George K. Helmkamp, E. A. Helmkamp
1998-5-13
3581
Tulare
Sierra Nevada Foothills, 11.5 mi east of Fountain Springs along Hot Springs Road
808
Comment
UCR107343
Galium parisiense
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3632
Fresno
Coast Range, Warthan Creek Canyon, along Calif. Hwy 198, 27.6 mi. west of Interstate 5, west of Coalinga
457
Comment
RSA756919
Galium porrigens var. porrigens
George K. Helmkamp, E. A. Helmkamp
2009-5-14
14696
El Dorado
hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville
511
Comment
UCR161801
Galium porrigens var. porrigens
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9147
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 6.2 mi. NNE of Los Olivos
402
Comment
UCR130985
Galium stellatum var. eremicum
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3520
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
UCR237277
Galium trifidum var. pacificum
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19299
Amador
Northern Sierra Nevada Mountains, Bear River Road at the south end of the dam of Lower Bear River Reservoir
1774
Comment
UCD121951
Galium triflorum
G. K. Helmkamp; E. A. Helmkamp
2007-8-16
12758
Amador
Northern Sierra Nevada Mountains: along the south side of Bear River Reservoir just east of the spillway.
1777
Comment
UCR232630
Galium triflorum
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18192
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 0.9 miles south of its junction with US-50 in Kyburz
1280
Comment
UCR237376
Galium triflorum
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19171
Nevada
Northern Sierra Nevada Mountains Foothills, Washington Road, 3.6 miles north of its junction with CA-20
1006
Comment
UCR123156
Gamochaeta ustulata
George K. Helmkamp, E. A. Helmkamp
2002-4-16
7411
San Luis Obispo
Central Coast, Park Ridge 0.5 mi east of Morro Bay near Turri Road
76
Comment
UCR160290
Gamochaeta ustulata
George K. Helmkamp
2004-5-1
8556
San Luis Obispo
Central Coast, south of Arroyo Grande along Calif. Hwy 1, south of Callender Rd beside Conoco-Phillips refinery
30
Comment
SD247466
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2013-6-19
20931
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, north side of its junction with Mormon Emigrant Trail.
2188
Comment
UCD103622
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11040
El Dorado
Northern Sierra Nevada Mountains. 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd.
2226
Comment
UCD103674
Gayophytum diffusum subsp. parviflorum
G. K. Helmkamp; E. A. Helmkamp
2007-8-9
12734
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road, 1.4 miles south of the lake.
2101
Comment
UCR176744
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2006-7-12
10950
El Dorado
Northern Sierra Nevada Mtns, Mount Ralston Trail and Hwy US-50, about 0.9 mile south of Twin Bridges
1960
Comment
UCR188473
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2007-7-17
12520
Amador
Northern Sierra Nevada Mountains, along CA-88 at Martin Meadow, 2.2 miles north of Silver Lake
2317
Comment
UCR206776
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, Amy Barnes
2009-7-8
15137
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
UCR207113
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2009-7-16
15216
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
UCR233148B
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17724
Calaveras
Northern Sierra Nevada Mountains, Winton Road (Forest Route 7N03), 12.6 miles east of its junction with CA-26 in West Point
1503
Comment
UCR253543
Gayophytum diffusum subsp. parviflorum
George K. Helmkamp, Elizabeth Helmkamp
2013-7-6
20957
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 0.6 mile south of its junction with Hwy CA-88
1633
Comment
CAS-BOT-BC227274
Gayophytum heterozygum
George K. Helmkamp; E. A. Helmkamp
2011-7-19
17808
Tuolumne
Northern Sierra Nevada Mountains Foothills: Forest Route 5N14, 1.7 mile southeast of Boards Crossing bridge of North Fork Stanislaus River
1143
Comment
UCR232618
Gayophytum heterozygum
George K. Helmkamp, E. A. Helmkamp
2011-9-30
18367
Nevada
Northern Sierra Nevada Mountains, small, open flat along CA-20, 2.6 miles west of its junction with Lowell Hill Road
1581
Comment
CLARK-A1045-1162
Gayophytum nuttallii
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
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-A1045-59
Geranium carolinianum
George K. Helmkamp
1929-4-27
Riverside
Santa Ana Mountains Wildomar 7.5'Q
Comment
SD243151
Geranium carolinianum
George K. Helmkamp, E. A. Helmkamp
2011-3-12
17074
San Joaquin
Upper San Joaquin Valley: between Lodi and Galt, Forest Lake Road just west of CA-99. Weedy roadside flat.
27
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
SEINET13203107
Geranium dissectum
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20446
El Dorado
Sierra Nevada Mountains Foothills: Camp Creek along Happy Valley Cutoff Road, 0.6 mile east of junction with Mt. Aukum Road, 1.35 air miles NE (62 deg. ) of Somerset (Camino 7.5' Q.)
565
Comment
SEINET13203137
Geranium dissectum
George K. Helmkamp
2014-1
22750
Nevada
Sierra Nevada Mountains Foothills: 8 miles west of Grass Valley, Penn Valley Drive, 0.2 mile southeast of its junction with CA-120 (Rough & Ready 7.5' Q.)
437
Comment
UCR185225
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11794
Amador
Foothills, Northern Sierra Nevada Mountains, along Calif. Hwy 124, 0.25 mile from its junction with Hwy 16
252
Comment
UCR242584
Geranium dissectum
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17609
Amador
Northern Sierra Nevada Mountains Foothills, junction of CA-26 and Joyce Road, northwest of the Hwy 26 bridge over North Fork Mokelumne River, 0.78 mi. SSW (187 deg. ) of Pioneer
762
Comment
SD243152
Geranium molle
George K. Helmkamp, E. A. Helmkamap
2011-4-10
17135
Placer
Sacramento Valley: east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road.
98
Comment
SEINET11261853
Geranium molle
George Helmkamp, E. A. Helmkamp
2012-5-15
18979
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
UCD103416
Geranium molle
G. K. Helmkamp; Elizabeth Helmkamp
2006-4-20
10202
El Dorado
Northern Sierra Nevada Foothills: Between N and Middle forks of Cosumnes River; Junction of Sand Ridge Road and Cutaway Lane, 2.1 mi SW of Somerset.
665
Comment
UCD103426
Geranium molle
G. K. Helmkamp; E. A. Helmkamp
2007-4-23
11804
Amador
Northern Sierra Nevada Mountains; junction of Tonzi Road and CA-124 about 7 miles north of Ione.
229
Comment
UCR160581
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9586
San Luis Obispo
Central Coast Ranges, Arroyo Grande to Huasna Road along Arroyo Seco Creek, 8.3 miles northeast of Huasna Townsite Road
332
Comment
UCR197537
Geranium molle
George K. Helmkamp, E. A. Helmkamp
2008-3-22
13237
Calaveras
Sierra Nevada Mountains Foothills, along Mokelumne Vista Road at the junction with CA-49, just west of Mokelumne Hill village
479
Comment
UC2015622
Geum triflorum
G. Helmkamp
1995-9-23
3 -3
Alpine
West side of Sonora Pass just beyond the Mono County line.
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
UCR162743
Gilia achilleifolia subsp. achilleifolia
George K. Helmkamp
2004-4-23
8510
Santa Barbara
San Rafael Mountains, Figueroa Mountain, VABM lookout tower north of Figueroa Mountain Rd.
1372
Comment
RSA627297
Gilia angelensis
George K. Helmkamp
1998-4-3
3083
Riverside
West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. N of Tamarack Rd on Cottonwood Rd.
1280
Comment
UCR116010
Gilia angelensis
George K. Helmkamp, E. A. Helmkamp
1997-3-5
1335
Riverside
San Bernardino Mtns./San Gorgonio Pass, Cabazon, 0.5 mi north of I-10 on Millard Pass Rd.
564
Comment
RSA0013371
Gilia capitata
George K. Helmkamp, E. A. Helmkamp
2010-9-1
16883
Amador
Northern Sierra Nevada Mountains: along CA-88, 2.6 miles southwest of its junction with Mormon Emigrant Trail, e. 2.75 mi NNW of Upper Bear River Reservoir.
2162
Comment
UCR130051
Gilia capitata subsp. abrotanifolia
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4047
Los Angeles
Western Mojave Desert/Transverse Range, junction of Munz Ranch Rd and Lake Elizabeth Rd., north of Lake Elizabeth
1006
Comment
RSA0115716
Gilia capitata subsp. mediomontana
George K. Helmkamp, Elizabeth Helmkamp
2013-5-2
20452
El Dorado
Sierra Nevada Mountains Foothill: Happy Valley Road, 0.6 mile east of its junction with Mt. Aukum Road, 1.65 air miles NE (72 deg ) of Somerset.
665
Comment
SD244198
Gilia capitata subsp. mediomontana
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19272
Amador
Northern Sierra Nevada Mountain: Panther Creek Road, 0.9 mile south of its junction with CA-88, S of Hwy 88/Carson Pass Hwy and W of Lower Bear Reservoir (Peddler Hill 7.5'Q)
1616
Comment
UCR173797
Gilia capitata subsp. mediomontana
George K. Helmkamp, Elizabeth A. Helmkamp
2006-5-31
10592
El Dorado
Northern Sierra Nevada foothills, along Hwy US-50, 0.6 mile east of White Hall
1055
Comment
UCR173812
Gilia capitata subsp. mediomontana
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-4
10631
El Dorado
Northern Sierra Nevada foothills, Rock Creek Road, about 2.2 miles east of its junction with Calif. Hwy 193
424
Comment
UCR193400
Gilia capitata subsp. mediomontana
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12199
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
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-A1045-671
Gilia latifolia
George K. Helmkamp
1977-4-23
Inyo
15 miles north of Trona; roadside along Trona Road
Comment
UCR233119B
Gilia leptalea
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17990 A
Amador
Northern Sierra Nevada Mountains, Ellis Road, 0.2 miles south of its junction with CA-88
2009
Comment
RSA0012081
Gilia leptalea subsp. bicolor
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18091
Alpine
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
SEINET11261734
Gilia leptalea subsp. bicolor
George Helmkamp, Ann Kerchner; Amy Barnes
2011-8-13
18091
Alpine
Northern Sierra Nevada Mountains: unnamed dirt roadon the east side of CA-4 and about .1 mile northeast of the Calaveras Co. line, near Bear Valley (Tamarack 7.5' Q.); 0
2165
Comment
SEINET11267715
Gilia leptalea subsp. bicolor
George Helmkamp, Elizabeth Helmkamp
2013-8-2
22092
Alpine
Northern Sierra Nevada Mountains: along CA-88, Carson Pass Hwy, 1.6 miles east of the Caples Lake dam (Caples Lake 7.5' Q.); 0
2486
Comment
UCD106141
Gilia leptalea subsp. leptalea
G. K. Helmkamp; E. A. Helmkamp
2007-8-1
12664
Nevada
Northern Sierra Nevada Mountains: near Camp Spaulding; along Lake Spaulding Road 0.4 mile north of its junction with CA-20.
1573
Comment
UCR207153
Gilia leptalea subsp. leptalea
George K. Helmkamp, E. A. Helmkamp
2009-7-22
15267
El Dorado
Sierra Nevada Mountains, Wrights Lake Road, 1.2 miles south of Wrights Lake
2073
Comment
UCR229567
Gilia leptalea subsp. leptalea
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18053
Calaveras
Northern Sierra Nevada Mountains, Black Springs Road [Forest Route 7N23], 1.7 miles north of its junction with CA Hwy 4
2058
Comment
UCR101071
Gilia malior
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3286
Kern
W end of city of Mojave, along Airport Blvd.
808
Comment
RSA614659
Gilia sinuata
George K. Helmkamp
1993-4-24
s.n.
San Bernardino
Creasote scrub between Kelbaker Road and the Granite Mountains, 5.1 miles NE of US-40.
1220
Comment
UCR26124
Gilia splendens
George K. Helmkamp
1982-5-23
s.n.
San Bernardino
Little San Bernardino Mtns/Southern Mojave Desert, Big Morongo Canyon. Roadside bank about 0.25 mi. below the entrance to the Nature Conservancy Preserve, where the canyon begins
Comment
UCR15613
Glebionis segetum
George K. Helmkamp
1978-6-3
s.n.
San Luis Obispo
Central Coast, roadside in Morro Bay
Comment
UCR106439
Glehnia littoralis subsp. leiocarpa
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2164
Mendocino
North Coast, Glass Beach, Fort Bragg
6
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
UCR190313
Glyceria elata
George 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
CLARK-A1045-874
Gnaphalium bicolor
George K. Helmkamp
1977-3-5
Riverside
Santa Ana Mountains along Riverside-San Diego County Line at start of Interstate Highway 215; ; southern oak woodland; Temecula 7.5'Q
Comment
UCR140147
Gnaphalium californicum
George K. Helmkamp
2004-2-11
8279
San Luis Obispo
Central Coast, Nipomo Mesa, Pomeroy Rd, 0.2 mi north of Willow Rd.
130
Comment
UCR158185
Gnaphalium californicum
George K. Helmkamp
2004-6-12
8624
Santa Barbara
Central Coast Range, Purissima Hills. Harris Grade Rd at '28.04 mi', about 3 mi south of CA Hwy 135
229
Comment
UCR219640
Gnaphalium canescens subsp. beneolens
George K. Helmkamp, E. A. Helmkamp
2009-10-9
15667
El Dorado
Sierra Nevada Mountains Foothills, along Snows Road, 0.9 mile south of Carson Road in Camino. 0.3 mi. south of Hwy 50
933
Comment
UCR176016
Gnaphalium canescens subsp. thermale
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11031
El Dorado
Northern Sierra Nevada Mtns, 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd
2226
Comment
UCR200906
Gnaphalium canescens subsp. thermale
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14061
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
UCR234188
Gnaphalium canescens subsp. thermale
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16957
El Dorado
Northern Sierra Nevada Mountains, Forest Route 31, 3.4 miles north of its junction with Peavine Ridge Road and Round Tent Canyon Road
1463
Comment
UCR259869
Gnaphalium luteoalbum
George K. Helmkamp, Elizabeth Helmkamp
2013-11-2
22467
Placer
Sacramento Valley, West Wise Road just east of the junction with California Lane, north of Lincoln
56
Comment
SD243090
Gnaphalium palustre
George K. Helmkamp, E. A. Helmkamp
2011-9-24
18334
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 (Robbs Peak 7.5'Q)
1750
Comment
UCD132411
Gnaphalium palustre
G. K. Helmkamp; E. A. Helmkamp
2007-7-27
12612
Nevada
Northern Sierra Nevada Mountains: Bowman Lake Road, 11.2 miles north of its junction with CA-20.
1793
Comment
UCR188861
Gnaphalium palustre
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12612
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 11.2 miles north of its junction with CA-20
1793
Comment
UCR207007
Gnaphalium palustre
George K. Helmkamp, Amy Barnes
2009-7-8
15166
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
UCR233318
Gnaphalium palustre
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18223
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
UCR233373
Gnaphalium palustre
George K. Helmkamp, E. A. Helmkamp
2011-9-16
18284
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
UCR122355
Gnaphalium stramineum
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7010
Humboldt
North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay
6
Comment
UCR169944
Gnaphalium stramineum
George K. Helmkamp, E. A. Helmkamp
2004-6-20
08683
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Sudden Rd west of Sudden Peak and 1.2 mi SW of Miquelito Rd (SW of Lompoc)
412
Comment
UCR179359
Gnaphalium stramineum
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11419
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Ice House Road [at Riverton] and US-50 east of Pacific
1000
Comment
UCR248421
Grindelia camporum var. camporum
George K. Helmkamp, Elizabeth Helmkamp
2013-9-13
22292
Amador
Northern Sierra Nevada Mountains Foothills, Volcano Road; 0.1 mile northwest of the village of Volcano
671
Comment
UC2044599
Grindelia hirsutula
George K. Helmkamp with Elizabeth Helmkamp
2013-9-13
22292
Amador
Northern Sierra Nevada Mountains Foothills Volcano Road; 0.1 mile northwest of the village of Volcano. (Tragedy Spring 7.5' Q.)
Comment
SEINET5586210
Grindelia hirsutula var. davyi
George K. Helmkamp, Elizabeth Helmkamp
2013-1
22180
Alpine
Northern Sierra Nevada Mountains: along Ca-89, 0.1 mile east of its junction with CA-4, Monitor Creek.
1747
Comment
UCR190580
Grindelia hirsutula var. davyi
George K. Helmkamp, E. A. Helmkamp
2007-9-2
12883
El Dorado
Northern Sierra Nevada Mountains Foothills, Grizzly Flat road 10.4 miles ESE of Somerset.
1107
Comment
UCR194702
Grindelia hirsutula var. davyi
George K. Helmkamp, E. A. Helmkamp
2007-5-30
12207
Placer
Northern Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill
488
Comment
UCR233149B
Grindelia hirsutula var. davyi
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17715
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
Comment
UCR249616
Grindelia hirsutula var. davyi
George K. Helmkamp, Elizabeth Helmkamp
2013-6-11
20839
Placer
Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 0.1 mile northwest of its junction with Spring Garden Road
738
Comment
UCR258552
Grindelia hirsutula var. davyi
George K. Helmkamp, Amy Barnes
2014-8-27
23027
Alpine
Northern Sierra Nevada Mountains, West Fork Carson River canyon, along highway CA-88/Carson Pass Hwy, 2.6 miles east of the junction with Hwy 89/Luther Pass Rd.
1994
Comment
RSA613939
Guillenia lasiophylla
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1404
San Luis Obispo
Carrizo Plain. 30.1 mi. NW of CA-166 on Soda Lake Rd; at San Diego Crk Rd and edge of Soda Lake.
701
Comment
UCR237272
Hackelia floribunda
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19394
Amador
Northern Sierra Nevada Mountains, edge of Martin Meadow along CA-88 (Carson Pass Hwy), 2.2 miles north of Silver Lake
2317
Comment
UCR237559
Hackelia mundula
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19294
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 2.9 miles west of its junction with CA-88
2271
Comment
CLARK-A1045-1233
Haplopappus acaulis
George K. Helmkamp
1978-5-30
Mono
Sierra Nevada 2 miles north of Conway Summit, west of US Highway 395; ; Lundy 7.5'Q
2316
Comment
CLARK-A1045-35
Haplopappus cooperi
George K. Helmkamp
1977-4-24
San Bernardino
Red Mountain 7 miles north on Trona Road; Creosote Bush scrub; Klinker Mt. 7.5'Q
Comment
UCR18616
Haplopappus squarrosus
George K. Helmkamp
1974-9-28
s.n.
San Luis Obispo
Central Coast, Morro Bay area, Hazard Cyn, near ocean
34
Comment
CLARK-A1045-846
Hedeoma nana subsp. californica
George K. Helmkamp
1977-5-29
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
SD234814
Helianthella californica
G. K. Helmkamp, E. A. Helmkamp
2008-6-23
13736
Amador
Northern Sierra Nevada Mountains: Dufrene Road, 1.1 miles south of its junction with CA-88 (jct is between Mormon Emigrant Trail and Bear River Reservoir Road), c. 2 mile (air) north of the west end of Lower Bear River Reservoir (Peddler Hill 7.5'Q)
2054
Comment
RSA518564
Helianthus annuus
George K. Helmkamp
1990-9-23
A- 11
Lassen
3 mi E of Susanville, along state road 36.
1345
Comment
UCR209581
Helianthus annuus
George K. Helmkamp, E. A. Helmkamp
2009-8-24
15527
Amador
Northern San Joaquin Valley, Carbondale Road, 1.2 miles south of its junction with Lambert Road
101
Comment
UCR253801
Helianthus annuus
George K. Helmkamp, Elizabeth Helmkamp
2012-10-26
20061
San Joaquin
San Joaquin Valley, along Hwy CA-26, 0.7 mile northeast of Bellota
50
Comment
UCR103946
Helianthus gracilentus
George K. Helmkamp
1997-6-21
2066
San Luis Obispo
Central Coast, Questa Ridge north of San Luis Obispo and 0.4 mi west of radio towers
854
Comment Read comments Nov 19 2009
UCR158756
Heliotropium curassavicum
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8695
Santa Barbara
Central Coast, Ocean Park at Surf, NW of Lompoc
6
Comment
RSA739791
Hemizonella minima
George K. Helmkamp, E. A. Helmkamp
2007-6-6
12264
El Dorado
along Mormon Emigrant Trail, 8.3 miles east of its junction with Sly Park Road
1616
Comment
UCR200939
Hemizonia fitchii
George K. Helmkamp, E. A. Helmkamp
2008-9-30
14180
Calaveras
Foothills, northern Sierra Nevada Mountains, along CA-49, 1.9 miles south of Mokelumne Hill
381
Comment
UCR230746
Hemizonia fitchii
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17042
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
UCR146651
Hemizonia increscens subsp. increscens
George K. Helmkamp, E. A. Helmkamp
2004-10-1
8826
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 Read comments Jan 10 2021
UCR237737
Heracleum maximum
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19400
Amador
Northern Sierra Nevada Mountains, edge of Martin Meadow along CA-88 (Carson Pass Hwy), 2.2 miles north of Silver Lake
2317
Comment
UCR274887
Heracleum maximum
George K. Helmkamp
1974-7-27
s.n.
Mono
Owens Valley, Owens River, Big Springs
2195
Comment
RSA710339
Heteranthemis viscidihirta
George K. Helmkamp
2004-4-1
8410
San Luis Obispo
Central Coast: Nipomo Mesa; Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 miles S of Halcyon Road
76
Comment
RSA614694
Heterodraba unilateralis
George K. Helmkamp, E. A. Helmkamp
1997-3-7
1394
Kern
San Emidgio Ranch, SE portion.
1494
Comment
UCR200935
Heteromeles arbutifolia
George K. Helmkamp, E. A. Helmkamp
2008-9-30
14177
Calaveras
Foothills, northern Sierra Nevada Mountains, Campo Seco Road at its junction with CA-49
462
Comment
UCR182286
Heterotheca grandiflora
George K. Helmkamp, E. A. Helmkamp
2006-10-8
11484
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
UCR131861
Heterotheca sessiliflora subsp. bolanderi
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5741
Mendocino
North Coast, Glass Beach at Fort Bragg
9
Comment
UCR58452
Heterotheca sessiliflora subsp. fastigiata
George K. Helmkamp
1989-10-7
s.n.
Riverside
Peninsular Range; San Jacinto Mtns, roadside beside Hwy 243 near Lawlor Lodge, c. 2 mi north of Pine Cove
1600
Comment
RSA0036007
Heuchera micrantha
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-5
20753
Sierra
Along CA-49, 1.2 miles north of the Yuba County line
901
Comment
SD236411
Heuchera micrantha
G. K. Helmkamp, E. A. Helmkamp
2008-6-3
13581
El Dorado
Sierra Nevada Mountains: Forbay Road, 7.1 miles northwest of CA-50 (road junction in Pollock Pines), no-outlet road leading to the South Fork of the American River
715
Comment
SEINET8061130
Heuchera micrantha
George K. Helmkamp, E. A. Helmkamp
2009-6-25
15044
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road above South Fork American River, 6.4 miles north of Pony Express Trail in Pollock Pines
613
Comment
UCR103608
Hibiscus denudatus
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2941
Imperial
Sonoran (Colorado) Desert, Imperial Dam area, along Ferguson Rd, 1.5 mi. north of Hwy S-24.
91
Comment
UCR250140
Hieracium albiflorum
George K. Helmkamp, Elizabeth Helmkamp
2013-6-11
20812
Placer
Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road
768
Comment
UCR258389
Hieracium albiflorum
George K. Helmkamp, Amy Barnes
2014-8-11
23002
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 1.7 miles south of Crystal Basin Information Station
1610
Comment
UCD133107
Hieracium argutum
G. K. Helmkamp; E. A. Helmkamp
2006-8-11
11207
Placer
Northern Sierra Nevada Mountain. Along the road to Clementine Lake, 0.8 mile north of Forest Hill road.
422
Comment
JEPS119419
Holocarpha virgata subsp. virgata
G. 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
Comment
UCD133246
Holocarpha virgata subsp. virgata
G. K. Helmkamp; E. A. Helmkamp
2007-9-9
12908
El Dorado
Northern Sierra Nevada Mountains: along South Shingle Road 2.5 miles south of Shingle Springs.
399
Comment
UCR189944
Holocarpha virgata subsp. virgata
George K. Helmkamp, E. A. Helmkamp
2007-9-9
12909
Sacramento
Sacramento Valley, along CA-16, 0.2 mile west of the Amador County line.
91
Comment
UCR235315
Holodiscus discolor
George K. Helmkamp, William Barnes
2010-9-4
16942
Alpine
Northern Sierra Nevada Mountains, Red Vista Road, 0.6 mile southeast of its junction with CA-88 just east of Carson Pass
2553
Comment
UCR102574
Holodiscus microphyllus
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2357
Mono
Sierra Nevada Mtns., along Calif. Hwy 120, 0.5 mile north of Tioga Pass, Nunatak Meadow area
2957
Comment
RSA0047094
Holozonia filipes
George K. Helmkamp, E. A. Helmkamp
2008-10-2
14196
Sacramento
Sacramento Valley: Latrobe Road, 7.4 miles west of Latrobe.
67
Comment
UCR234564
Hordeum brachyantherum subsp. brachyantherum
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18138
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 1.4 miles north of its junction with Tamarack Road
2506
Comment
UCR59982
Hordeum brachyantherum subsp. californicum
George K. Helmkamp
1988-9-8
s.n.
Mono
Eastern Sierra Nevada Mtns., Hwy 395, at Deadman's Pass
2451
Comment
UCD85753
Hordeum jubatum
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11000
El Dorado
Northern Sierra Nevada Mountains. Echo Summit along US Hwy 50. At entrance to the road maintenance station.
2244
Comment
UCR173683
Hordeum leporinum
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10408
Nevada
Northern Sierra Nevada Foothills, San Juan Ridge area at North Columbia, c. 9.3 mi. east of Calif. Hwy 49
884
Comment
UCR162161
Hordeum murinum subsp. glaucum
George K. Helmkamp, E. A. Helmkamp
2005-2-16
8927
San Luis Obispo
Central Coast, Mesa Dune Mobile Home Park; SW of Arroyo Grande along Calif. Highway 1
76
Comment
SEINET3828566
Hordeum murinum subsp. leporinum
George K. Helmkamp, E. A. Helmkamp
2012-1
18785
Yolo
Sacramento Valley: along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland.
65
Comment
UCR253261
Hordeum vulgare
George K. Helmkamp, Amy Barnes
2014-4-7
22721
Sacramento
Sacramento Valley, Clay East Road, 1 mile east of its junction with CA-104
52
Comment
UCR13790
Horkelia californica
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
UCR201541
Horkelia californica
George K. Helmkamp, E. A. Helmkamp
2008-9-28
14165
Amador
Foothills, northern Sierra Nevada Mountains, Sutter Creek Rancho Road on the north side of CA-88 and 4.2 miles southwest of the junction of CA-88 and CA-49
287
Comment
UCR161916
Horkelia cuneata
George K. Helmkamp, E. A. Helmkamp
2005-3-1
8980
San Luis Obispo
South Outer Coast Ranges, Santa Lucia Range NE of Lake Lopez; 0.3 mi. N of Hi Mountain Road along Upper Lopez Canyon Road
311
Comment
CLARK-A1045-1418
Horkelia fusca subsp. parviflora
George K. Helmkamp
1977-8-5
Mariposa
Sierra Nevada Porcupine Flats Campground; on old road bed; ; Yosemite Falls 7.5'Q
2590
Comment
UCR175732
Horkelia fusca subsp. parviflora
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11064
El Dorado
Northern Sierra Nevada Mountains, along Wrights Lake Road (Forest Route 4), 3.3 miles north of Hwy US-50
2049
Comment
UCR218761
Horkelia fusca subsp. parviflora
George K. Helmkamp, Amy Barnes, Ann Kerchner
2010-7-19
16560
El Dorado
Northern Sierra Nevada Mountains, southeast side of Wright's Lake, 5.8 mi. NE (34 deg. ) of Kyburz
2085
Comment
UCR206042
Horkelia tridentata subsp. tridentata
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14942
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
SD235007
Horkelia tridentata var. tridentata
G. K. Helmkamp, E. A Helmkamp
2007-6-6
12261
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail, 8.3 miles east of its junction with Sly Park Road (Old Iron Mountain 7.5' Q)
1616
Comment
UCD113570
Horkelia tridentata var. tridentata
G. K. Helmkamp; E. A. Helmkamp
2005-7-31
9747
El Dorado
Northern Sierra Nevada: 20 mi. WSW of Lake Tahoe; Ice House Road, N of CA Highway 50 and 1.5 mi. S of junction with Ice House Reservoir.
Comment
SD143833
Horsfordia newberryi
G. K. Helmkamp, E. A. Helmkamp
1998-3-19
2959
Imperial
Little Picacho Wash along Picacho Road, 2.5 miles south of Picacho State Recreation Area.
152
Comment
CAS-BOT-BC438808
Hosackia oblongifolia var. oblongifolia
George K. Helmkamp; Elizabeth Helmkamp
2013-7-6
20967
Amador
Northern Sierra Nevada Mountains: Bear River Road at the south end of the dam for Lower Bear River Reservoir.
1784
Comment
CAS-BOT-BC400822
Hypericum anagalloides
G. K. Helmkamp; E. A. Helmkamp
2008-6-23
13725
Amador
Northern Sierra Nevada Mountains: Dufrene Road, 1.1 miles south of its junction with CA-88 (jct. is between Mormon Emigrant Trail and Bear River Reservoir Road), c. 2 miles (air) north of the west end of Lower Bear River Reservoir
2055
Comment
UCD110336
Hypericum anagalloides
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11188
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail, 22.1 miles east of its junction with Sly Park Road.
2250
Comment
UCR176385
Hypericum anagalloides
George K. Helmkamp, E. A. Helmkamp
2006-7-7
10857
El Dorado
Northern Sierra Nevada Mtns, Wright's Lake Road, 4.1 miles north of Hwy US-50, northeast of Kyburz
2049
Comment
UCR176422
Hypericum anagalloides
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10898
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
UCR252931
Hypericum calycinum
George K. Helmkamp, E. A. Helmkamp
2013-11-27
22495
El Dorado
Sierra Nevada Mountains Foothills, Capp's Crossing Road, 0.4 mile southeast of its junction with Mormon Emigrant Trail
1204
Comment
UCR130067
Hypericum formosum subsp. scouleri
George K. Helmkamp, E. A. Helmkamp
2001-7-7
6906
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
RSA714207
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2005-7-11
9689
El Dorado
30 mi. SW of Lake Tahoe; 1 mi E of Jenkinson Lake along Mormon Emigrant Road (County Highway 5).
1220
Comment
SD248443
Hypericum perforatum
George K. Helmkamp, Elizabeth Helmkamp
2013-7-25
22039
El Dorado
Northern Sierra Nevada Mountains: Wentworth Springs Road, 2.1 miles east of Stumpy Meadows Lake, 15.6 km NNE (06a^z) of Pollock Pines (Devil Peak 7.5'Q)
1356
Comment
SEINET3245884
Hypericum perforatum
G. K. Helmkamp, E. A. Helmkamp
2007-1
12940
El Dorado
Northern Sierra Nevada Mountains: Along Hwy US-50 at Echo Summit.
2256
Comment
UCR176412
Hypericum perforatum
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11153
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 16.7 miles east of its junction with Sly Park Road
1944
Comment
UCR207892
Hypochaeris glabra
George K. Helmkamp, E. A. Helmkamp
2009-5-12
14683
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park, Diamond Springs
530
Comment
UCR257567
Hypochaeris glabra
George K. Helmkamp, Amy Barnes
2014-4-23
22772
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
UCR257771
Hypochaeris radicata
George K. Helmkamp, Amy Barnes
2014-7-28
22939 A
El Dorado
Sierra Nevada Mountains Foothills, Lake Walton beside Balderston Road; 1/4 mile south of Wentworth Springs Road
966
Comment
UC2015612
Ipomopsis aggregata subsp. aggregata
G. Helmkamp
1995-9-23
3 -28
Alpine
West side of Sonora Pass just beyond the Mono County line.
Comment
UCR114357
Ipomopsis aggregata subsp. bridgesii
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5828
Mono
Sierra Nevada Mountains, South Twin Lake along Lake Mary Road, 3 miles SW of Mammoth Lakes
2561
Comment
UCR123998
Ipomopsis aggregata subsp. formosissima
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6850
Plumas
Sierra Nevada Mountains, Calif. Hwy 89, ESE of Lake Almanor at Crescent Mills
976
Comment
UCR233460
Ipomopsis aggregata subsp. formosissima
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18180
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 12.9 miles east of Humbug Road, less than 1 mile northwest of Robinson Flat
2050
Comment
UCR241355
Ipomopsis aggregata subsp. formosissima
George K. Helmkamp, Mary Alice Barnes, E. A. Helmkamp
2012-9-8
19820
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 0.7 mile north of Robinson Flat Campground, about 26 miles northeast of Foresthill, Tahoe National Forest
2034
Comment
CLARK-A1045-690
Ipomopsis polycladon
George K. Helmkamp
1977-5-15
San Bernardino
Mojave Desert Kelso [Cima?] Road; Kelso 15' Q
Comment
CLARK-A1045-829
Ipomopsis polycladon
George K. Helmkamp
1978-5-6
San Bernardino
Mesquite Mountains 0.2 mile east of Pass; Clark Mt. 15' Q; Mesquite Mountain 7.5' Q
Comment
RSA0035753
Iris hartwegii subsp. hartwegii
George K. Helmkamp, Elizabeth A. Helmkamp
2013-6-15
20869
El Dorado
Silver Fork Road, 2.3 miles south of its junction with US-50 in Kyburz
1454
Comment
SEINET11261550
Iris tenuissima subsp. purdyiformis
George Helmkamp, E. A. Helmkamp
2012-5-5
18913
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
UCR206047
Iris tenuissima subsp. purdyiformis
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14978
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
UCR235614
Iris tenuissima subsp. purdyiformis
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18913
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
UCR45850
Isocoma acradenia var. acradenia
George K. Helmkamp
1986-9-28
s.n.
Inyo
Northeastern Mojave Desert, lake at the north edge of Tecopa Hot Springs beside Hwy 127
427
Comment
UCR132140
Iva nevadensis
George K. Helmkamp, E. A. Helmkamp
1993-6-16
162
Inyo
Owens Valley, 2 mi east of Pleasant Valley Campground along Chalk Bluff Road, NW of Bishop
1280
Comment
UCR233159B
Juncus
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17711
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
Comment
CLARK-A1045-1380
Juncus bufonius
George K. Helmkamp
1978-4-23
San Luis Obispo
Morro Bay Turri Road west of Morro Bay; Morro Bay S 7.5'Q
Comment
UCR206093
Juncus bufonius
George K. Helmkamp, E. A. Helmkamp
2009-6-3
14882
El Dorado
Sierra Nevada Mountains Foothills, Pony Express Trail, 0.7 mile east of its junction with Sly Park Road in Pollock Pines
851
Comment
UCR233145B
Juncus bufonius var. bufonius
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17719
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
Comment
UCD141431
Juncus chlorocephalus
G. K. Helmkamp; E. A. Helmkamp
2007-6-29
12444
Amador
Northern Sierra Nevada Mountains: Kirkwood Lake, about 0.5 mile north of CA-88 on the road to the campground.
2351
Comment
UCR159837
Juncus dubius
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9630
San Luis Obispo
South Coast Ranges, along Calif. Hwy 58 (Calf Canyon Hwy), 4.2 mi east of Santa Margarita
358
Comment
UCR170429
Juncus effusus
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10034
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, N of Union Valley Reservoir]; Wentworth Springs Road, 5.9 [road] mi east of Uncle Toms Cabin
1567
Comment
UCD141508
Juncus effusus subsp. pacificus
G. K. Helmkamp; E. A. Helmkamp
2007-8-21
12787
El Dorado
Northern Sierra Nevada Mountains. Ice House Road. 21.3 miles north of CA-50 at Robbs Hut Road.
2078
Comment
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
UCR189207
Juncus ensifolius
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12937
El Dorado
Northern Sierra Nevada Mountains, along Hwy US-50 at Echo Summit
2256
Comment
UCR233330
Juncus ensifolius
George K. Helmkamp, E. A. Helmkamp
2011-8-6
17983
Amador
Northern Sierra Nevada Mountains, Ellis Road, 2.1 miles south of its junction with CA-88
1794
Comment
UCR15902
Juncus hemiendytus
George K. Helmkamp
1979-6-22
s.n.
San Bernardino
San Bernardino Mtns., Drying pool in Holcomb Valley
2287
Comment
UCR257702
Juncus laccatus
George K. Helmkamp, Amy Barnes
2012-8-19
19670
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
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
SEINET8465034
Juncus macrandrus
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13954
El Dorado
Northern Sierra Nevada Mountains: Dark Lake 0.4 mile northwest of the entrance to Wright's Lake along Wright's Lake Road.
2148
Comment
RSA781382
Juncus oxymeris
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12111
Nevada
Tyler Foote Crossing Road, 1.0 mile northeast of CA-49
622
Comment
UCR253597
Juncus oxymeris
George K. Helmkamp, Elizabeth Helmkamp
2012-11-5
20119
Amador
Sierra Nevada Mountains Foothills, Along CA-26 on the north side of the bridge over the North Fork Mokelumne River
628
Comment
UCR96395
Juncus parryi
George K. Helmkamp
1996-9-26
1233
Mono
Sierra Nevada Mtns, Twin Lakes north of city of Mammoth Lakes
2622
Comment
CLARK-A1045-468
Juncus sphaerocarpus
George K. Helmkamp
1979-6-22
San Bernardino
San Bernardino Mountains beside Forest Service road 3N66Y, 400 yards north of 3N08; along flowing creek; ; Big Bear City 7.5' Q
2285
Comment
UCR245588
Juncus tenuis
George K. Helmkamp, Amy Barnes
2013-9-24
22361
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
CLARK-A1045-959
Juncus xiphioides
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, north of the entrance to the National Park [Forest?]; Kernville 7.5'Q
Comment
RSA519137
Juniperus occidentalis var. occidentalis
George K. Helmkamp
1990-9-23
D- 6
Lassen
20 miles N of Litchfield along U.S. Hwy 395
1433
Comment
RSA0037372
Keckiella breviflora subsp. breviflora
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20503
Placer
Mosquito Ridge Road at the north side of the bridge over West Fork of North Fork American River, 5.2 mi. east (87 ) of Forest Hill
422
Comment
CAS-BOT-BC235618
Keckiella breviflora var. breviflora
G. K. Helmkamp; E. A. Helmkamp
2009-6-29
15059
El Dorado
Sierra Nevada Mountains Foothills: Ice House Road, 0.2 miles north of its junction with CA-50, c. 73 miles ENE (83 deg. ) of Pollock Pines
989
Comment
UCD123757
Keckiella breviflora var. breviflora
G. K. Helmkamp; E. A. Helmkamp
2007-5-5
11930
El Dorado
Northern Sierra Nevada Mountains. along CA-49, 3.7 miles northwest of Placerville.
548
Comment
UCR117396
Keckiella cordifolia
George K. Helmkamp, E. A. Helmkamp
1995-6-20
95- 2 -
San Luis Obispo
Central Coast, Bear Creek Ranch, 6 miles SE of Los Osos on Clark Valley Road
400
Comment
CAS-BOT-BC434227
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.
1793
Comment
RSA0053705
Kelloggia galioides
G. K. Helmkamp, E. A. Helmkamp
2012-6-19
19223
Placer
Northern Sierra Nevada Mountains: Devil's Thumb Road (Deadwood Rd.), 1.2 miles S of its junction with Foresthill Road
1648
Comment
SBBG125690
Kelloggia galioides
G. K. Helmkamp with E. A. Helmkamp
2009-6-29
15076
El Dorado
Ice House Rd, 7.6 mi N of its juction with CA 50, ca. 10.5 air mi NE (74 deg) of Pollock Pines
1642
Comment
SEINET4560772
Kelloggia galioides
George K. Helmkamp, E. A. Helmkamp
2010-1
16658
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 22 miles northeast of the city of Foresthill.
2041
Comment
UCR233319
Kelloggia galioides
George K. Helmkamp, E. A. Helmkamp
2011-9-13
18269
El Dorado
Northern Sierra Nevada Mountains, Foster Meadow Road, 0.6 miles north of its junction with CA-88
2136
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
UCD123878
Kickxia elatine
G. K. Helmkamp; E. A. Helmkamp
2006-10-23
11563
Amador
Central Valley/Northern Sierra Nevada Foothills; along CA-16, 0.2 mile east of Waits Station, southwest of Plymouth.
305
Comment
UCD123879
Kickxia elatine
G. K. Helmkamp; E. A. Helmkamp
2007-9-19
12987
El Dorado
Northern Sierra Nevada Mountains; junction of Lost Creek Road and French Creek Road just north of Frenchtown.
366
Comment
UCR179560
Kickxia elatine
George K. Helmkamp, E. A. Helmkamp
2006-9-29
11439
El Dorado
Northern Sierra Nevada Mountains Foothills, Placerville outskirts; Calif. Hwy 49, 2 miles north of jct with US-50
549
Comment
UCR253140
Kickxia elatine
George K. Helmkamp, Elizabeth Helmkamp
2013-8-7
22105
Nevada
Sierra Nevada Mountains Foothills, north of Auburn, Robles Drive, just south of the junction of Darkhorse Drive and Combie Rd.
444
Comment
UCR261986
Kochia scoparia
George K. Helmkamp, Amy Barnes
2014-10-10
23156
Alpine
Northern Sierra Nevada Mountains, along CA-89, 0.6 mile south of Luther Pass
2287
Comment
SBBG119151
Koeleria macrantha
G. K. Helmkamp with E. A. Helmkamp
1998-8-11
4334 b
Mono
Campito Meadow, W of White Mtn Rd at Poison Crk
3293
Comment
UCR235624
Kumlienia hystricula
George K. Helmkamp, E. A. Helmkamp
2012-4-27
18873
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
UCR194707
Lactuca serriola
George K. Helmkamp, E. A. Helmkamp
2007-10-28
13106
Placer
Sacramento Valley, along Nicolaus Road 5.8 miles west of Lincoln
27
Comment
UCR232629
Lactuca serriola
George K. Helmkamp, E. A. Helmkamp
2011-10-13
18418
El Dorado
Northern Sierra Nevada Mountains Foothills, Forebay Road, 8.1 miles northwest of Pollock Pines, at north side of bridge over the South Fork American River
596
Comment
UCR241994
Lactuca serriola
George K. Helmkamp, E. A. Helmkamp
2012-9-7
19769
Amador
Northern Sierra Nevada Mountains Foothills, along CA-49, 1.2 miles north of the junction with Fiddletown Road at Plymouth
299
Comment
UCR161941
Lamarckia aurea
George K. Helmkamp, E. A. Helmkamp
2005-3-1
8992
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
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
UCR161911
Lamium amplexicaule
George K. Helmkamp, E. A. Helmkamp
2005-3-1
8984
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
UCR118332
Langloisia schottii
George K. Helmkamp, E. A. Helmkamp
1998-4-18
3343
San Bernardino
Mojave Desert, north side of Dumont Sand Dunes, 5.2 miles east of Calif. Hwy 127
305
Comment
UCR129535
Lasthenia gracilis
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4036
Kern
Western Mojave Desert, South base, Tehachapi Mtns., 4.0 mi north of Calif. Hwy 138 (Lancaster Rd) on 300th St. West
1006
Comment
SD239742
Lathyrus nevadensis subsp. nevadensis
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17519
Nevada
Northern Sierra Nevada Mountains Foothills: Tyler Foote Crossing Road, 3.3 miles north of its junction with Grizzly Hill Road, NE of North Columbia near the Sierra Co. line / Middle Yuba River.
878
Comment
SD239741
Lathyrus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17888
Nevada
Northern Sierra Nevada Mountains: along CA Hwy 20, 0.8 mi east of Bowman Lake Road, 1.23 mi NE (50a^z) of Emigrant Gap and 0.35 mi N of I-80 (Blue Canyon 7.5'Q)
1541
Comment
SD241007
Lathyrus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2012-5-11
18954
Placer
Northern Sierra Nevada Mountains Foothills: Finning Mill Road, 1.7 miles north of its junction with Forest Hill Road.
1041
Comment
CAS-BOT-BC175712
Lathyrus sulphureus
G. K. Helmkamp; E. A. Helmkamp
2007-5-18
12004
Placer
Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 2.8 miles southeast of Foresthill
814
Comment
SEINET11261547
Lathyrus sulphureus
George Helmkamp, E. A. Helmkamp
2012-5-5
18914
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
UCR173295
Lathyrus sulphureus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-20
10494
El Dorado
Northern Sierra Nevada Foothills, Along Calif. Hwy 193, 0.4 mi. south of Kelsey
604
Comment
UCR119936
Lavatera cretica
George K. Helmkamp, E. A. Helmkamp
1999-5-20
4820
Santa Barbara
Central Coast, Casmalia Hills; Corralitos Canyon, southeast of Guadalupe, 3.8 mi southeast of CA Hwy 1 on Brown Road
305
Comment
UCR115588
Layia glandulosa
George K. Helmkamp, E. A. Helmkamp
2000-6-15
5675
San Luis Obispo
Central Coast, between Los Osos and sand dunes west of the end of Howard St.
15
Comment Read comments Jan 8 2013
UCR141118
Layia hieracioides
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3811 A
Monterey
Central Coast Ranges, Salinas Valley Quinado Cyn., 12 mi south of King City along (G-14) Jolon Road
412
Comment
RSA0035477
Layia pentachaeta subsp. pentachaeta
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20355
Placer
Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 ) of Weimar
512
Comment
SD260903
Layia pentachaeta subsp. pentachaeta
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20337
Placer
Northern Sierra Nevada Mountains Foothills: Yankee Jim Road, 0.9 mil East of its junction with Canyon Way, 4.4 miles SE (167a^z) of Colfax (Colfax 7.5'Q)
561
Comment
UCD133970
Layia pentachaeta subsp. pentachaeta
G. K. Helmkamp; E. A. Helmkamp
2006-6-14
10714
Placer
Northern Sierra Nevada Mountains foothills; 0.2 mile N of the Forest Hill Road on unnamed road to Lake Clementine (general area northeast of Auburn on Forest Hill Divide).
487
Comment
UCR159303
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2005-4-22
9379
San Luis Obispo
Inner South Coast Ranges, Carrizo Hwy at Mile-19 (Calif. Hwy 58, east of Santa Margarita near Wilson Corner)
470
Comment
UCR206869
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14314
Colusa
Sacramento Valley, junction of Moon Bend Road and CA-20 at the south end of the city of Colusa
23
Comment
UCR242782
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15823
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
SD241692
Leersia oryzoides
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18387
Glenn
Northern Sacramento Valley: 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
UCR233020
Leontodon taraxacoides
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17256
Placer
Southern Sacramento Valley, south of Lincoln along Athens Ave., 1.6 mile east of Fiddyment Road, 0.6 mi. west of Industrial Ave.
41
Comment
UCR171331
Leontodon taraxacoides subsp. taraxacoides
George K. Helmkamp, E. A. Helmkamp
2005-10-8
10001
El Dorado
Northern Sierra Nevada Foothills, SE off Calif. Highway 49 at junction of Patterson Drive and Pleasant Valley Road, SW of Diamond Springs
537
Comment
UCR112647
Lepechinia calycina
George K. Helmkamp, E. A. Helmkamp
1999-6-27
4954
Santa Clara
South Coast Range, Sierra Azul, 5 mi south of San Jose & 1 mi NE of Lake Elsman
427
Comment
RSA794918
Lepidium campestre
George K. Helmkamp, E. A. Helmkamp
2011-7-17
17784
Nevada
You Bet Road just northeast of its junction with CA-174, 1.25 mi. east (91 deg ) of Peardale
778
Comment
UCR170792
Lepidium campestre
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9959
Placer
Northern Sierra Nevada Mtns., Junction of Chalet and Alpine Meadows Roads west of Calif. Highway 89 (near Alpine ski area)
2081
Comment
UCR123944
Lepidium dictyotum var. dictyotum
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6539
Kern
San Joaquin Valley, Enos Lane Rd., 1.9 mi south of Calif. Hwy 119, NE of Taft
61
Comment
UCR48047
Lepidium flavum
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
UCR246644
Lepidium heterophyllum
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19150
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 5.8 miles south of its junction with CA-88, 6.2 mi. SW (246 deg. ) of Bear River Reservoir dam
1465
Comment
CLARK-A1045-790
Lepidium lasiocarpum
George K. Helmkamp
1978-4-8
San Bernardino
Mojave Desert 5 miles north of Lucerne [Dry] Lake at Lucerne Valley cutoff; creosote bush scrub; Ord Mts 15'Q
Comment
UCR30098
Lepidium lasiocarpum
George K. Helmkamp
1983-4-5
483 8
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
SD257227
Lepidium latifolium
George K. Helmkamp, Mary Alice Barnes
2013-5-8
20527
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
SEINET2033409
Lepidium latifolium
George K. Helmkamp, E. A. Helmkamp
2008-1
14257
Colusa
Sacramento Valley; along River Road (generally following the Sacramento River), 1.1 miles north of Colusa (Meridian 7.5' Q.: 39 deg. 13'33''N, 121 deg. 59'43''W, +/- 1000m).
18
Comment
CAS-BOT-BC89945
Lepidium nitidum
G. K. Helmkamp; E. A. Helmkamp
1997-3-7
1376
Kern
San Emigdio Ranch, southeast portion.
945
Comment
UCR189465
Lepidium nitidum var. nitidum
George 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
UCR250091
Lepidium nitidum var. nitidum
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20197
Calaveras
Northern Sierra Nevada Mountains Foothills, Along CA-26, 5.1 miles southwest of Mokelumne Hill
393
Comment
UCR257562
Lepidium nitidum var. nitidum
George K. Helmkamp, Elizabeth Helmkamp
2014-2-17
22515
El Dorado
Sierra Nevada Mountains Foothills, along Marshall Road, 0.1 mile northeast of its junction with CA-49, above S Fork American River, NW of Colma
235
Comment
UCR161351
Lepidium pinnatifidum
George K. Helmkamp, E. A. Helmkamp
2005-3-8
9068
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon Road, 4.6 mi west of Los Osos Valley Road
316
Comment
SEINET13276808
Lepidium strictum
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20222
Stanislaus
Eastern San Joaquin Valley: along CA-4, 1.5 miles east of the San Joaquin County line, 12.5 mi. WSW (259 deg. ) of Copperopolis (Bachelor Valley 7.5' Q.)
70
Comment
UCR253479
Lepidium strictum
George K. Helmkamp
2014-4-5
22688
Amador
Eastern edge of San Joaquin Valley/lower Sierra Nevada Foothills, Sutter Creek along West Marlette Street, 0.1 mile east of Dave Brubeck Road, west end of city of Ione
85
Comment
UCR257027
Lepidium strictum
George K. Helmkamp, Amy Barnes
2014-3-21
22601
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
CLARK-A1045-306
Lepidium virginicum
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q
1066
Comment
UCD115873
Lepidium virginicum
G. K. Helmkamp
2007-7-7
12464
El Dorado
Northern Sierra Nevada Mountains: along CA-89, 0.9 mile west of Luther Pass in the Grass Lake area.
2338
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
UCR189468
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2007-9-11
12929
El Dorado
Northern Sierra Nevada Mountains, along Hwy US-50, 0.4 mile southwest of Phillips
1829
Comment
UCR191090
Lepidium virginicum var. virginicum
George K. Helmkamp, E. A. Helmkamp
2007-6-12
12323
Placer
Northern Sierra Nevada Mountains, Lake Spaulding Road just north of its junction with Hwy CA-20
1610
Comment
UCR89814
Leptochloa uninervia
George K. Helmkamp
1994-3-10
42- 16
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
UCR94628
Leptochloa uninervia
George K. Helmkamp
1996-9-11
1176
San Diego
Peninsular Range, c. 5 miles south of Calif. Hwy 76 on Couser Canyon Road onto Lilac Rd. to Wills Avocado Ranch
335
Comment
UCR103980
Leptodactylon californicum
George K. Helmkamp
1997-3-11
1468
Santa Barbara
32 mi. west of New Cuyama along Calif. Hwy 166
399
Comment
SD241131
Leptosiphon bicolor
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15899
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 8.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q).
308
Comment
SD241132
Leptosiphon bolanderi
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17352
Calaveras
Northern Sierra Nevada Mountains Foothills: Railroad Flat Road at junction with Wharregard Road and beside Esperanzo Creek, 8.3 miles NW (289a^z) of Arnold (Fort Mountain 7.5'Q)
758
Comment
UCR122805
Lesquerella tenella
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6336
San Bernardino
Eastern Mojave Desert, Goffs Rd, 8.1 mi east of Goffs
610
Comment
RSA0039244
Lessingia leptoclada
George K. Helmkamp, Elizabeth A. Helmkamp
2013-9-13
22293
Amador
Fiddletown Road, 0.4 mile west of its junction with Shake Ridge Road
977
Comment
RSA0093477
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2012-9-1
19741
Calaveras
Northern Sierra Nevada Mountains Foothills. along CA-26 (West Point-Pioneer Rd.) on the south side of the North Fork Mokelumne River.
584
Comment
SD240882
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17804
Tuolumne
Northern Sierra Nevada Mountains Foothills: Forest Route 5N14, 1.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River (Boards Crossing 7.5'Q)
1143
Comment
UCR179355
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11412
El Dorado
Northern Sierra Nevada Mountains Foothills, junction of Ice House Road [at Riverton] and US-50 east of Pacific
1000
Comment
UCR240942
Lessingia leptoclada
George K. Helmkamp, E. A. Helmkamp
2012-9-1
19741
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26 (West Point-Pioneer Rd.) on the south side of the North Fork Mokelumne River
584
Comment
UCR233325
Leucanthemum vulgare
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18226
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
SEINET3071987
Lewisia nevadensis
George K. Helmkamp, E. A. Helmkamp
2007-5-31
12222
El Dorado
Northern Sierra Nevada Mountains: Wright's Lake Road, north of US-50 at the Lyon's Creek trailhead and creek crossing (Pyramid Peak 7.5' )
2060
Comment
UCR190627
Ligusticum grayi
George K. Helmkamp
2007-6-29
12422
El Dorado
Northern Sierra Nevada Mountains, Tragedy Spring, just north of CA-88
2421
Comment
UCR229441
Ligusticum grayi
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18086
Alpine
Northern Sierra Nevada Mountains, south side of Bear Valley Village, along CA Hwy 4
2169
Comment
UCR258128
Ligusticum grayi
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19553
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
UCR215902
Lilium humboldtii subsp. humboldtii
George K. Helmkamp, Amy Barnes
2009-7-12
15171
Placer
Sierra Nevada Mountains Foothills, along Foresthill Road at the northeast end of the city of Foresthill
985
Comment
UCR122349
Lilium kelleyanum
George K. Helmkamp, Elizabeth Helmkamp
2000-7-19
5893
Mono
Sierra Nevada Mountains., West side of Lake Mary, southwest of Mammoth Lakes
2652
Comment
UCR123121
Lilium parvum
George K. Helmkamp, E. A. Helmkamp
1998-8-13
4404
Mono
Eastern Sierra Nevada Mountains, Nunatak trail beside CA Hwy 120, about 1 mi south of Yosemite National Park entrance kiosk
2973
Comment
SEINET4560793
Limnanthes alba subsp. alba
George K. Helmkamp, E. A. Helmkamp
2011-1
17334
Calaveras
Northern Sierra Nevada Mountains: Rail Road Flat Road, 1.2 miles south of its junction with Ridge Road, 10.1 mi. ENE (83 degrees) of Mokelumne Hill.
854
Comment
UCR198489
Limnanthes alba subsp. alba
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13379
Amador
Sierra Nevada Mountains, Barton, c. 15 miles (air) NE of Jackson, at the junction of Tiger Creek Road and Black Prince Road, 0.6 mil east of the junction of Tiger Creek Road with CA-88
936
Comment
SBBG128840
Limnanthes floccosa subsp. californica
G. K. Helmkamp, E. A. Helmkamp
2011-4-10
17151
Placer
Riosa Rd at the E edge of the village of Sheridan, Sacramento Valley
41
Comment
CLARK-A1045-682
Linanthus aureus
George K. Helmkamp
1978-5-6
#2
San Bernardino
Mojave Desert south slope of Kingston Range; ; Kingston Peak 15' Q
1280
Comment
UCR234014
Linanthus bicolor
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17331
Calaveras
Northern Sierra Nevada Mountains Foothills, Rail Road Flat Road, 1.2 miles south of its junction with Ridge Road, 10.1 mi. ENE (83 deg. ) of Mokelumne Hill
854
Comment
CLARK-A1045-673
Linanthus ciliatus
George K. Helmkamp
1977-5-21
Riverside
San Jacinto Mountains forest west of Pine Cove; Palm Springs 15'Q
Comment
RSA0093527
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19255
Amador
Northern Sierra Nevada Mountains. Panther Creek Road, 0.4 mile south of its junction with CA-88/Carson Pass Hwy and W of Lower Bear Reservoir.
1643
Comment
UCR206997
Linanthus ciliatus
George K. Helmkamp, Amy Barnes
2009-7-8
15153
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
UCR233155B
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17720
Calaveras
Northern Sierra Nevada Mountains, Winton Road, 9.6 miles east of its junction with CA-26 in West Point
1299
Comment
UCR246582
Linanthus ciliatus
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19138
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
CLARK-A1045-799
Linanthus dichotomus
George K. Helmkamp
1978-4-9
San Bernardino
Mojave Desert in saddle near campground road, north slope of Ord Mountain; Ord Mts 15' Q
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
SD225056
Linanthus maculatus
G. K. Helmkamp
1998-3-30
3059
San Bernardino
Mojave Desert: E of town of Joshua Tree & S of Copper Mtn, 0.4 mi. E of the S end of Kerr Rd near Joshua Tree National Park
Comment
SEINET2042543
Linanthus parryae
George K. Helmkamp, E. A. Helmkamp
2001-5-2
6660
Los Angeles
Antelope Valley, 0.1 mi W of CA-138 on Ave. W, then 0.3 mi S on dirt road.
976
Comment
UCR206787
Linanthus pygmaeus subsp. continentalis
George K. Helmkamp, E. A. Helmkamp
2009-7-2
15104
El Dorado
Sierra Nevada Mountains, Wrights Road at Chimney Flat, 3.4 miles north of junction with US-50
2037
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
CAS-BOT-BC520359
Linum bienne
George K. Helmkamp; Elizabeth Helmkamp
2013-5-30
20717
Nevada
Northern Sierra Nevada Mountains Foothills: along Hwy CA-20, 3.5 mi W of CA-49 in Grass Valley
623
Comment
UCR93700
Linum bienne
George K. Helmkamp
1996-5-25
1067
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
UCR119830
Linum lewisii var. lewisii
George K. Helmkamp
1998-6-27
4110
Riverside
Santa Rosa Mtns., 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), below Mountain Home Spring
1799
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
UCR185228
Lithophragma bolanderi
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11792
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
IRVC28174
Lithophragma bolanderi
G. K. Helmkamp, E. A. Helmkamp
2000-4-24
5500
Monterey
Nacimiento Rd. 12 mi N of Gorda and 3.8 mi E of CA-1. Central outer coast ranges.
549
Comment
UCR123938
Lithophragma cymbalaria
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6551
Kern
Temblor Range, CA Hwy 58, 1.1 mi SW of the San Luis Obispo Co. line
793
Comment
UCR87509
Lithophragma parviflorum
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
16.1 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR88346
Lomatium plummerae
George K. Helmkamp, E. Helmkamp
1995-6-23
95- 6 -10
Alpine
Sierra Nevada Mtns, Calif. Hwy 89, 6.0 mi east of the junction with Calif. Hwy 4 on the way to Monitor Pass. Slope above Monitor Creek
2200
Comment
UCR234191
Lonicera hispidula
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17651
El Dorado
Northern Sierra Nevada Mountains, Capps Crossing (Bonnetti) Road, 2.8 miles south of its junction with Mormon Emigrant Trail
1297
Comment
UCR206103
Lonicera hispidula var. vacillans
George K. Helmkamp, E. A. Helmkamp
2009-6-3
14899
El Dorado
Northern Sierra Nevada Mountains, Forbay Road, 4.7 miles northwest of its junction with Pony Express Trail in Pollock Pines
945
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
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
UCR116698
Lotus grandiflorus
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Angelus Oaks, below Barton Flats on Hwy 38
1829
Comment
UCR217334
Lotus humistratus
George K. Helmkamp, E. A. Helmkamp
2010-6-14
16287
El Dorado
Sierra Nevada Mountains Foothills, Slug Gulch Road, 4.5 miles from its junction with Perry Creek Road, 3.5 air mi. ESE (96 deg. ) of Fair Play
1059
Comment
UCR257074
Lotus humistratus
George K. Helmkamp, Amy Barnes
2014-4-23
22775
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
UCR208265
Lotus micranthus
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14645
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill
476
Comment
UCR242760
Lotus micranthus
George K. Helmkamp, E. A. Helmkamp
2011-5-24
17371
El Dorado
Northern Sierra Nevada Mountains Foothills, Mesquite Road, 7.5 miles south of its junction with Wentworth Springs Road
1073
Comment
UCR234650
Lotus nevadensis var. nevadensis
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16831
Nevada
Northern Sierra Nevada Mountains, South Fork Yuba River, Forest Route 85 (Fordyce Lake Rd) north of Hampshire Rocks Road and I-80, 1 mi. NNW (351 deg. ) of Cisco
1634
Comment
UCR173987
Lotus oblongifolius var. oblongifolius
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10769
El Dorado
Northern Sierra Nevada Mountains, about 1.3 miles north of Hwy US-50 on Wrights Lake Road
1677
Comment
UCR215779
Lotus oblongifolius var. oblongifolius
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15354
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR118337
Lotus purshianus
George K. Helmkamp, E. A. Helmkamp
2000-9-2
5964
San Luis Obispo
Central Coast Range, Irish Hills, Prefumo Canyon, 2.2 mi west of Los Osos Valley Road
137
Comment
UCR78903
Lotus purshianus
George K. Helmkamp
1993-9-22
34- 17
San Bernardino
San Bernardino Mtns., 6.7 mi. up Burns Canyon from junction of Pioneertown and Pipes Canyon Roads
1529
Comment
SEINET269523
Lotus purshianus
G. Helmkamp
1994-5-18
91 -13
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
RSA746969
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14242
Colusa
along River Road (generally following the Sacramento River), 1.1 miles north of Colusa
18
Comment
RSA794891
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17733
Calaveras
Winton Road (Forest Route 7N03), 14.4 miles east of its junction with CA-26 in West Point.
1590
Comment
SEINET2441570
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14980
Shasta
Southern Cascade Range: nRoad 300, a side road without an official road sign, at the north side of CA-44; 9.7 miles east of Shingletown (Viola 7.5' Q.).
1261
Comment
UCR170797
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2005-9-30
9933
Placer
Northern Sierra Nevada Mtns., Hampshire Rocks Road south of the I-80 Rainbow exit (c. 2 mi east of Cisco Grove)
1805
Comment
UCR191141
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2007-8-26
12810
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy CA-49 at mile-20, 2.1 miles north of Plymouth; beside Blue Indian Creek
299
Comment
UCR233390
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2011-8-26
18170
Placer
Northern Sierra Nevada Mountains, along Forest Hill Road, 0.4 miles west of Robinson Flat
2041
Comment
UCR234606
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2011-8-6
18019
Amador
Northern Sierra Nevada Mountains, along dirt road 0.3 mile east of Bear River Reservoir Road, from a point 0.7 mile south of CA-88
1986
Comment
UCR122808
Lotus salsuginosus var. brevivexillus
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6349
San Bernardino
Eastern Mojave Desert, NE side of junction of US-95 and I-40
366
Comment
SEINET12804265
Lotus salsuginosus var. salsuginosus
George K. Helmkamp, E. A. Helmkamp
2005-1
9029
San Luis Obispo
Outer South Coast Ranges, N of Lopez Lake, Upper Lopez Cyn Road, 5.5 mi N of jct with Lopez Road (Tar Spring Ridge 7.5' Q: Near 35.14'11"N, 120.28'W)
619
Comment
UCR134385
Lotus scoparius var. scoparius
George K. Helmkamp
2003-9-19
8155
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
UCR134389
Lotus scoparius var. scoparius
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6582
San Luis Obispo
Irish Hills, Clark Valley Rd., 3.8 mi south of Los Osos Valley Rd., east of Los Osos
213
Comment
UCR140069
Lotus scoparius var. scoparius
George K. Helmkamp
2004-3-13
8348
San Luis Obispo
Central Coast, Nipomo Mesa, between Arroyo Grande and Nipomo, Willow Rd, 0.6 mi east of Calif. Hwy 1
91
Comment
UCR158189
Lotus scoparius var. scoparius
George K. Helmkamp
2004-6-12
8627
Santa Barbara
Central Coast Range, Purissima Hills. Harris Grade Rd at '28.04 mi', about 3 mi south of CA Hwy 135
229
Comment
UCR130641
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
1999-4-18
4698
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
UCR158610
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
2005-4-16
9357
Santa Barbara
Outer South Coast Ranges, Sierra Madre Mountains, 7.5 mi south of Calif. Hwy 166 on Miranda Pines Road
1155
Comment
UCR97565
Lotus strigosus
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1431
San Luis Obispo
South Coast Range, along CA Hwy 58 west of Navajo Creek, west of Carrizo Plain
564
Comment
UCR102963
Lotus strigosus var. tomentellus
George K. Helmkamp
1998-3-30
3036
San Bernardino
Mojave Desert, vicinity of Twentynine Palms; Encelia Ave., 1.0 mi. north of Calif. Hwy 62
793
Comment
UCR122582
Lotus strigosus var. tomentellus
George K. Helmkamp, E. A. Helmkamp
2001-3-31
6369
San Bernardino
Eastern Mojave Desert, NE side of junction of US-95 and I-40
366
Comment
RSA709460
Lotus wrangelianus
George K. Helmkamp
2004-4-21
8464
Santa Barbara
San Rafael Mountains: Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn. Rd.
412
Comment
CLARK-A1045-402
Ludwigia peploides
George K. Helmkamp
1979-5-15
Riverside
Jurupa ""at S.A. Picnic Area""; ; Fontana 7.5' Q
243
Comment
SD148165
Lupinus adsurgens
G. K. Helmkamp, E. A. Helmkamp
2001-7-6
6858
Plumas
Sierra Nevada Mountains: CA-89, ESE of Lake Almanor at Crescent Mills.
975
Comment
UCR189634
Lupinus adsurgens
George K. Helmkamp, E. A. Helmkamp
2007-7-27
12630
Placer
Northern Sierra Nevada Mountains, Southeast end of Cisco Grove; along local road just before it passes under Interstate-80
1744
Comment
UCR250177
Lupinus albicaulis
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20460
Placer
Foothills, northern Sierra Nevada Mountains, SW edge of Foresthill, Mosquito Ridge Road, 0.2 mile south of Forest Hill Road
974
Comment
SD148164
Lupinus albifrons var. albifrons
G. K. Helmkamp, E. A. Helmkamp
2000-4-21
5429
Monterey
Los Padres National Forest: Nacimiento Rd, 0.7 mi east of CA -1 (Nacimiento Rd is about 12 mi N of Gorda).
548
Comment
SD248424
Lupinus albifrons var. albifrons
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20361
Placer
Northern Sierra Nevada Mountains Foothills: Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 miles ENE of Weimar.
512
Comment
UCD106028
Lupinus albifrons var. albifrons
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-5-31
10574
El Dorado
Northern Sierra Neveda Mountains, Wright's Lake Road just north of Hwy. US-50.
1665
Comment
UCR218153
Lupinus albifrons var. albifrons
George K. Helmkamp, Amy Barnes
2010-5-7
15974
Calaveras
Sierra Nevada Mountains Foothills, along CA-49, 0.4 mile north of its junction with CA-12, vicinity of San Andreas
233
Comment
SD248425
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 Highway E-16 at Jenkinsons Lake.
1456
Comment
UCR122809
Lupinus albifrons var. collinus
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3883
San Luis Obispo
Outer South Coast Range; Santa Lucia Range, southwest of Paso Robles along CA Hwy 46 at York Mountain Road
366
Comment
UCR127137
Lupinus albifrons var. collinus
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3832
Monterey
Salinas Valley, 3.7 mi south of Lockwood on G-14, Interlake Road near northwest end of Lake San Antonio
320
Comment
UCR197341
Lupinus albifrons var. collinus
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13407
Calaveras
Sierra Nevada Mountains Foothills, along CA-26, 1.7 miles northeast of Glencoe
674
Comment
UCR207853
Lupinus albifrons var. collinus
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14556
Placer
Sierra Nevada Mountains Foothills, Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River
277
Comment
CLARK-A1045-565
Lupinus andersonii
George K. Helmkamp
1977-6-5
San Bernardino
San Bernardino Mountains dirt road [unpaved State Highway 173] between Lake Arrowhead and Mojave River Forks Regional Park; ; Lake Arrowhead 7.5'Q
1523
Comment
UCR116695
Lupinus andersonii
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Calif. Hwy 38 near Heart Bar State Park
1982
Comment
UCR219672
Lupinus angustiflorus
George K. Helmkamp, Amy Barnes, Ann Kerchner
2010-7-19
16574 A
El Dorado
Northern Sierra Nevada Mountains, southeast side of Wright's Lake, 5.8 mi. NE (34 deg. ) of Kyburz
2085
Comment
UCR129539
Lupinus argenteus var. meionanthus
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6832
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
CLARK-A1045-305
Lupinus arizonicus
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q
1066
Comment
SD143899
Lupinus arizonicus
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2885
Imperial
4.7 mi N of Winterhaven on Picacho rd & 1 mi NW of the All-American Canal.
75
Comment
RSA0094637
Lupinus benthamii
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20645
Calaveras
Northern Sierra Nevada Mountains Foothills. Along CA Hwy 26, 0.4 mile northeast of its junction with Campo Seco Turnpike Road, SW of Mokelumne Hill.
438
Comment
SEINET2440974
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2010-5-14
16023
El Dorado
Sierra Nevada Mountains Foothills: along CA-16 (Mt. Aukum Rd.), 1.8 mi NE of Somerset (Camino 7.5').
567
Comment
UCR208610
Lupinus benthamii
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14626
Placer
Sierra Nevada Mountains Foothills, Oxbow Road, 2.0 miles south of its junction with Mosquito Ridge Road; north edge of Oxbow Reservoir
402
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
UCR258385
Lupinus benthamii
George K. Helmkamp
2014-5-21
22914
El Dorado
Sierra Nevada Mountain Foothills, Bucks Bar Road, 0.8 mile northwest of the bridge over North Fork Cosumnes River
605
Comment
CAS-BOT-BC444015
Lupinus bicolor
George K. Helmkamp; Elizabeth Helmkamp
2013-4-13
20325
Nevada
Northern Sierra Nevada Mountains Foothills: Wolf Road, 1.6 miles northwest of its junction with CA-49.
123
Comment
RSA0114571
Lupinus bicolor
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20441
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
SD193282
Lupinus bicolor
G. K. Helmkamp, E. A. Helmkamp
2005-4-16
9341
Santa Barbara
1.1 mile south of Highway CA 166 on Miranda Pines Road.
526
Comment
UCD107252
Lupinus bicolor
G. K. Helmkamp; E. A. Helmkamp
2007-5-1
11911
El Dorado
Northern Sierra Nevada Mountains; access to road to South Fork American River along CA-49, 4.4 miles northwest of Coloma.
207
Comment
UCR107353
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3619
Fresno
Inner South Coast Range, Warthan Creek Canyon, near Curry Mtn., c. 6-7 miles (airline) SW of Coalinga, along Calif. Hwy 198, 20.8 mi. west of Interstate 5
366
Comment
UCR184823
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2007-3-14
11629
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
UCR206803
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2009-3-19
14418
El Dorado
Northern Sierra Nevada Mtns. Foothills, Rock Creek Road, 4.1 miles east of its junction with CA-193
485
Comment
UCR250300
Lupinus bicolor
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20218
Stanislaus
Eastern San Joaquin Valley, along CA-4, 1.5 miles east of the San Joaquin County line, 12.5 mi. WSW (259 deg. ) of Copperopolis
70
Comment
UCR250605
Lupinus bicolor
George K. Helmkamp, Mary Alice Barnes
2013-4-24
20382
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
UCR132758
Lupinus brevicaulis
George K. Helmkamp, E. A. 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-A1045-1097
Lupinus breweri var. bryoides
George K. Helmkamp
1977-7-3
Mono
Sierra Nevada road to the Lake; ; Tioga Pass 7.5'Q
2895
Comment
UCR140157
Lupinus chamissonis
George K. Helmkamp
2004-2-29
8322
San Luis Obispo
Central Coast, Nipomo Mesa, Nipomo, Orchard Ave. 0.1 mi NW of Division St.
116
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-A1045-699
Lupinus excubitus subsp. austromontanus
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
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
UCR176026
Lupinus fulcratus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11033
El Dorado
Northern Sierra Nevada Mtns, 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd
2226
Comment
UCR130651
Lupinus hirsutissimus
George K. Helmkamp, E. A. Helmkamp
1999-4-15
4660
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
SEINET273105
Lupinus latifolius
G. K. Helmkamp, E. A. Helmkamp
1998-5-18
3784
Santa Clara
Central Coast Range: Mt. Hamilton Rd (Hwy CA-130) E of San Jose; 15.2 mi form the W origin of the Hwy.
610
Comment
CLARK-A1045-1091
Lupinus latifolius var. columbianus
George K. Helmkamp
1978-6-10
Mono
Owens River wet meadow; Arcularius Ranch; ; Crestview 7.5'Q
2163
Comment
UCD108187
Lupinus latifolius var. columbianus
G. K. Helmkamp; E. A. Helmkamp
2006-8-7
11162
El Dorado
Northern Sierra Nevada Mountains: Mormon Emigrant Trail, 21.0 miles east of its junction with Sly Park Road.
2174
Comment
UCR231013
Lupinus latifolius var. columbianus
George K. Helmkamp, E. A. Helmkamp
2010-8-7
16719
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
UCR251273
Lupinus latifolius var. columbianus
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19361
El Dorado
Northern Sierra Nevada Mountains, Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50
2078
Comment
UCR257923
Lupinus latifolius var. columbianus
George K. Helmkamp, Amy Barnes
2014-7-28
22957
El Dorado
Northern Sierra Nevada Mountains, Wentworth Springs Road, 1.6 miles west of Ice House Road
1863
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
UCR15449
Lupinus lepidus
George K. Helmkamp
1977-8-5
s.n.
Tuolumne
Sierra Nevada Mountains, Porcupine Flat Campground
2591
Comment
UCD108251
Lupinus lepidus var. confertus
G. K. Helmkamp; E. A. Helmkamp
2005-9-30
9964
Placer
Northern High Sierra Mountains: ca. 3.5 mi NW of Lake Tahoe; Along the Truckee River and CA Highway 89, 0.1 mi N of Alpine Meadows Road.
1902
Comment
UCR13973
Lupinus lepidus var. confertus
George K. Helmkamp
1973-9-25
s.n.
San Bernardino
San Bernardino Mtns, lakes just east of Fawnskin, Moon's Camp
2058
Comment
UCR176051
Lupinus lepidus var. confertus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11020
El Dorado
Northern Sierra Nevada Mtns, North Truckee River Rd., 1.4 miles north of Calif. Hwy 50 and c. 6 miles south of Lake Tahoe
2009
Comment
UCR196914
Lupinus lepidus var. confertus
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13855
Alpine
Eastern Sierra Nevada Mountains, Blue Lake Road just southeast of its junction with CA-88
2180
Comment
UCR234601
Lupinus lepidus var. confertus
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18105
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 6.6 miles south of its junction with CA-88
2296
Comment
UCR258129
Lupinus lepidus var. confertus
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19551
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
UCR59981
Lupinus lepidus var. confertus
George K. Helmkamp
1988-9-7
s.n.
Mono
Eastern Sierra Nevada Mountains, Hwy 395, 29 miles north of Inyo Co. line
2195
Comment
SD247423
Lupinus lepidus var. sellulus
George Helmkamp, Elizabeth Helmkamp
2013-8-2
22095
Alpine
Northern Sierra Nevada Mountains: along CA-88, Carson Pass Hwy, 1.6 miles east of the Caples Lake dam (Caples Lake 7.5'Q)
2486
Comment
UCR121456
Lupinus lepidus var. sellulus
George K. Helmkamp, E. A. Helmkamp
1999-6-29
5047
Nevada
Northern Sierra Nevada Range, Prosser Creek at Hobart Mills, c. 50-100 yards east of Calif. Hwy 89, NE of Lake Tahoe
1707
Comment
SD227817
Lupinus microcarpus var. densiflorus
G. K. Helmkamp, E. A. Helmkamp
1998-5-14
3601
Fresno
Coast Range: Warthan Crk Cyn, near Curry Mtn., ca. 6-7 miles (airline) SW of Coalinga, along CA Hwy 198, 20.8 mi. W of Hwy I-5.
395
Comment
UCR102080
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3601
Fresno
Inner South Coast Range, Warthan Creek Canyon, near Curry Mtn., c. 6-7 miles (airline) SW of Coalinga, along Calif. Hwy 198, 20.8 mi. west of Interstate 5
366
Comment
UCR102512
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-4-9
3279
Kern
Foothills of the Tehachapi Mtns., east of Arvin along Calif. Hwy 223
305
Comment
UCR130385
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
1998-5-21
4032
Kern
Western Mojave Desert, South base, Tehachapi Mtns., 4.0 mi north of Calif. Hwy 138 (Lancaster Rd) on 300th St. West
1006
Comment
UCR187301
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
2007-4-5
11744
Amador
Foothills, Northern Sierra Nevada Mountains, along CA-49, 0.2 mile west of Amador City
309
Comment
UCR194975
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
2007-5-18
11996
Placer
Northern Sierra Nevada Mountains Foothills, Forest Hill Road, 4.3 miles northeast of the bridge over the junction of North and West Forks of the American River
485
Comment
UCR217402
Lupinus microcarpus var. densiflorus
George K. Helmkamp, E. A. Helmkamp
2010-6-14
16295
El Dorado
Sierra Nevada Mountains Foothills, County Highway E-16, 1.3 miles southwest of Somerset
530
Comment
RSA747033
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11965
El Dorado
Pedro Hills Road, 0.5 mile west of its junction with Calif. Hwy 49, junction of roads 5.3 miles south of Cool
311
Comment
RSA751086
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2008-5-8
13403
Calaveras
Ridge Road, 1.6 miles east of CA-26, southeast of Glencoe
866
Comment
SEINET13203143
Lupinus nanus
George K. Helmkamp, Mary Alice Barnes
2013-1
20589
Amador
Sierra Nevada Mountains: Fiddletown Road 12.7 miles northesat of its junction with Shake Ridge Rd. (Omo Ranch 7.5' Q.)
872
Comment
SEINET1908777
Lupinus nanus
G. K. Helmkamp, E. A. Helmkamp
2008-1
13463
Yuba
Sierra Nevada Mountains Foothills: along CA-49, 0.1 mile north of the Nevada Co. line at Oregon Creek (Camptonville 7.5' Q)
466
Comment
UCD109063
Lupinus nanus
G. K. Helmkamp; E. A. Helmkamp
2006-5-11
10415
Nevada
Northern Sierra Nevada Foothills: along CA Hwy 49, 2.1 mi. N of the South Yuba River bridge.
534
Comment
UCR118263
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5507
Monterey
Los Padres National Forest, Nacimiento Rd. (starts about 12 mi north of Gorda), 10.2 mi east of Calif. Hwy 1; at Sherlock Creek
595
Comment
UCR161101
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2005-6-12
9660
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
UCR161475
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2005-5-17
9479
San Luis Obispo
Central Coast, 1.5 mi WNW of Piedras Blancas at Mile 64 of Calif. Highway 1
9
Comment
UCR196884
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2008-5-15
13449
El Dorado
Sierra Nevada Mountains, Pea Vine Ridge Road, 0.2 mile west of its junction with White Meadow Road, c. 4.8 miles west of the junction of White Meadow and Ice House roads
1155
Comment
UCR207671
Lupinus nanus
George K. Helmkamp, E. A. Helmkamp
2009-4-21
14532
El Dorado
Sierra Nevada Mountains Foothills, Rock Creek Road, 4.2 miles west of the bridge over Rock Creek
401
Comment
UCR250172
Lupinus nanus
George K. Helmkamp, Mary Alice Barnes
2013-5-3
20484
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
SBBG129009
Lupinus nanus
G. K. Helmkamp, E. A. Helmkamp
2012-4-21
18812
Nevada
junction of Lime Kiln Rd and Amberley Lane, 14.5 mi NNW (345 deg ) of Auburn
414
Comment
SEINET269137
Lupinus nanus
G. Helmkamp
1994-5-18
91 -4
San Luis Obispo
Alamo Canyon 7 miles east of US 101 on CA 166 then 4 niles north (generally northeast of Twitchell reservoir)
213
Comment
CAS-BOT-BC523894
Lupinus polyphyllus var. burkei
George K. Helmkamp; Elizabeth Helmkamp
2013-5-30
20745
Nevada
Northern Sierra Nevada Mountains Foothills: along Scotts Flat Road, 0.7 mi SW of its jct with CA-20, NE of Neevada City, NW of Scotts Flat Reservoir
1091
Comment
UCD109453
Lupinus polyphyllus var. burkei
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11120
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
UCR218258
Lupinus polyphyllus var. burkei
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16593
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
UCR233686
Lupinus polyphyllus var. burkei
George K. Helmkamp, E. A. Helmkamp
2010-8-26
16866
Nevada
Northern Sierra Nevada Mountains, Eagle Lakes Road, about 0.5 mile west of its junction with Carlyle Road, 5.8 mi. NE (66 deg. ) of Emigrant Gap, N of I-80
1655
Comment
UCR59784
Lupinus polyphyllus var. burkei
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
UCR102936
Lupinus sparsiflorus
George K. Helmkamp
1998-4-3
3091
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
UCR218439
Lupinus stiversii
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16454
El Dorado
Sierra Nevada Mountains, Silver Fork Road, 1.9 miles south of its junction with US-50 in Kyburz
1473
Comment
UCR100790
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3190
Kern
SW of Maricopa 1.7 mi NW of Calif. hwy 33 on Elkhorn Grade Rd.
396
Comment
UCR161326
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2005-3-8
9062
San Luis Obispo
Central Coast Hills, Prefumo Canyon, north side of Irish Hills; 3.0 mi west of Los Osos Valley Road
140
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
UCR206551
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14400
Yolo
Inner North Coast Ranges Foothills, along CA-20 and Cache Creek, 4.3 miles southeast of the Colusa County line
159
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
UCR131360
Lupinus truncatus
George K. Helmkamp, E. A. Helmkamp
1999-4-16
4673
San Diego
Sweetwater River Drainage, Japatul Rd 1/2 mi SE of Loveland Reservoir.
488
Comment
CAS-BOT-BC227441
Luzula comosa
George K. Helmkamp; E. A. Helmkamp
2012-5-5
18937
Placer
Northern Sierra Nevada Mountains Foothills: Todd Valley Road, 1.2 miles south of its junction with Foresthill Road
779
Comment
UCR235482
Luzula comosa
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18937
Placer
Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road
779
Comment
UCR235507
Luzula comosa
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18964
Calaveras
Northern Sierra Nevada Mountains Foothills, along Murray Creek Road (Murraydale Ln.), 1.4 miles east of Pope Road in San Andreas
387
Comment
UCR246402
Luzula comosa
George K. Helmkamp, E. A. Helmkamp
2012-3-22
18631
Amador
Northern Sierra Nevada Mountains Foothills, Bell Road, 1.2 miles east of CA-49 at private road to Rancho Cicada Retreat
371
Comment
UCR248500
Luzula comosa
George K. Helmkamp, E. A. Helmkamp
2012-5-31
19102
Calaveras
Northern Sierra Nevada Mountains, Winton Road, 4.1 miles east of its junction with CA-26, NE of West Point
1072
Comment
UCR114366
Luzula parviflora
George K. Helmkamp, E. A. Helmkamp
1997-9-8
2279
Mono
Sierra Nevada Mtns, south side of Lake Mary, south of Mammoth Lakes
2744
Comment
GH403347
Lysimachia arvensis
G. K. Helmkamp & E. A. Helmkamp
2010-5-4
15959
Unknown
Sacramento Valley: NW edge of Vacaville, Vaca Valley Road, 0.1 mile west of its junction with Orchard Valley Road
Comment
SEINET2441184
Machaeranthera canescens subsp. canescens
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15370
Alpine
Sierra Nevada Mountains. Along CA-4 at milepost 30, 1.6 miles south of its junction with CA-89, along East Fork Carson River. (Heenan Lake 7.5 Q.).
1787
Comment
RSA511562
Machaeranthera canescens var. canescens
George K. Helmkamp
1988-9-8
s.n.
Mono
Lundy Creek Campground #1, ca. 3 miles west of Highway 395
2226
Comment
CLARK-A1045-1007
Machaeranthera tortifolia
George K. Helmkamp
1977-4-24
Inyo
Panamint Range south of Emigrant Pass; dry wash; ; Emigrant Pass 7.5'Q
1066
Comment
UCR218245
Madia citriodora
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-2
16431
Placer
Sierra Nevada Mountains Foothills, Yankee Jims Road on the east side of Yankee Jims Bridge over the North Fork American River, 5 mi. SE (146 deg. ) of Colfax
282
Comment
SD132249
Madia elegans
G. Helmkamp
1990-9-23
A 6
Lassen
3.0 miles east of Susanville, along State Road 36.
1340
Comment
UCD134204
Madia elegans
G. K. Helmkamp; E. A. Helmkamp
2007-6-6
12263
El Dorado
Northern Sierra Nevada Mountains: along Mormon Emigrant Trail, 8.3 miles east of its junction with Sly Park Road.
1616
Comment
UCD134211
Madia elegans
G. K. Helmkamp; E. A. Helmkamp
2007-9-4
12891
Amador
Northern Sierra Nevada Mountains: Along CA-88 at Mile-49, 3.1 miles east of Hams Station.
1860
Comment
UCR219191
Madia elegans subsp. densifolia
George K. Helmkamp, E. A. Helmkamp
2009-9-22
15637
Amador
Sierra Nevada Mountains Foothills, junction of Shenandoah Road (CA-16) and Steiner Road, southwest of River Pines
750
Comment
UCR230959
Madia elegans subsp. densifolia
George K. Helmkamp, E. A. Helmkamp
2010-10-6
17003
Calaveras
Northern Sierra Nevada Mountains Foothills, along CA-26 (Stephen P. Teale Hwy), 0.6 mile east of CA-49 at Mokelumne Hill
483
Comment
UCR259012
Madia elegans subsp. elegans
George K. Helmkamp, Amy Barnes
2014-9-16
23087
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
UCR193183
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2007-6-6
12264
El Dorado
Northern Sierra Nevada Mountains, along Mormon Emigrant Trail, 8.3 miles east of its junction with Sly Park Road
1616
Comment
UCR218444
Madia exigua
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16461
El Dorado
Sierra Nevada Mountains, Silver Fork Road, 4.1 miles south of its junction with US-50 in Kyburz
1500
Comment
UCR240933
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2012-6-26
19281
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 8.0 miles south of its junction with CA-88, along East Panther Creek
1345
Comment
RSA0045149
Madia glomerata
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19919
Placer
Laing Road, parallel to I-80; 0.2 mile east of its junction with Emigrant Gap Road.
1611
Comment
UCD134262
Madia glomerata
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10943
El Dorado
Northern Sierra Nevada Mtns. Mount Ralston Trail and Hwy. U.S.-50, about 0.9 mile south of Twin Bridges.
1960
Comment
UCD134267
Madia glomerata
G. K. Helmkamp; E. A. Helmkamp
2007-8-16
12738
Amador
Northern Sierra Nevada Mountains, along Hwy CA-88, 1.0 mile south of the junction with Mormon Emigrant Trail.
2172
Comment
JEPS119434
Madia gracilis
George K. Helmkamp, Ann Kerchner, Amy Barnes
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
Comment
JEPS119468
Madia gracilis
George K. Helmkamp with E. A. Helmkamp
2011-7-2
17623
El Dorado
n SNF: Forni Road near Weber Creek, 0.8 mi south of its Placerville junction with US-50.
Comment
OBI82143
Madia gracilis
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
21096
El Dorado
Northern Sierra Nevada Mountains; Hell's Delight Road, just west of the junction with Silver Fork Road, 2.8 miles north of CA-88.
2006
Comment
UCR160733
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2005-6-5
9516
Monterey
Central Coast, west edge of Santa Lucia Range, overlooking Pacific Ocean, 0.4 mi east of Calif. Hwy 1 along Los Burros Road
113
Comment
UCR173286
Madia gracilis
George K. Helmkamp, Elizabeth Helmkamp
2006-5-18
10466
El Dorado
Northern Sierra Nevada Foothills, S side of Peavine Ridge; along Meadow Canyon Road, 3.4 mi. west of its junction with Ice House Canyon Road (N of US Hwy 50 and SSE of Union Valley Reservoir)
1189
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
UCR232276
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2011-9-30
18362
Nevada
Northern Sierra Nevada Mountains, small, open flat along CA-20, 2.6 miles west of its junction with Lowell Hill Road
1581
Comment
CLARK-A1045-381
Madia minima
George K. Helmkamp
1977-6-5
San Bernardino
San Bernardino Mountains Keller Peak 7.5'Q
Comment
RSA794915
Madia rammii
George K. Helmkamp, E. A. Helmkamp
2011-7-12
17704
Calaveras
Winton Road, 6.7 miles east of its junction with CA-26 in West Point
1192
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
VVC910
Malacothrix coulteri
G. K. Helmkamp, E. A. Helmkamp
1998-4-9
3290
Kern
Mojave Desert, W end of city of Mojave, along Airport Blvd.
808
Comment
UCR89560
Malacothrix glabrata
George K. Helmkamp
1994-3-10
42 7
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
UCR233035
Malva parviflora
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17259
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
UCR101002
Marah fabacea
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3239
San Luis Obispo
Soda Lake Rd at Arrowbear Trail, vic. of California Valley, c. 5 mi. NW of Soda Lake
610
Comment
UCR206541
Marah watsonii
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14399
Yolo
Inner North Coast Ranges Foothills, along CA-20 and Cache Creek, 4.3 miles southeast of the Colusa County line
159
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
UCR249931
Matricaria discoidea
George K. Helmkamp
2013-3-9
20164
Sutter
Northern Sancramento Valley, North Butte Road, 0.2 mile east of its junction with West Butte Road, NW foot of Sutter Buttes
26
Comment
RSA0057870
Medicago lupulina
George K. Helmkamp, E. A. Helmkamp
2013-11-9
22474
Calaveras
Gwin Mine Road, 1.3 rd. miles north of Paloma Rd. at Paloma, 3.3 miles SW (242 deg air) of Mokelumne Hill
384
Comment
UCR219686
Medicago lupulina
George K. Helmkamp, E. A. Helmkamp
2009-11-3
15721
El Dorado
Sierra Nevada Mountains Foothills, at a bridge on Grizzly Flat Road 8.0 miles east of its junction with Hwy E-16 at Somerset
925
Comment
UCR231327
Medicago lupulina
George K. Helmkamp, E. A. Helmkamp
2011-5-26
17397
Nevada
Northern Sierra Nevada Mountains Foothills, southeast outskirts of of Grass Valley, Brunswick Road 0.2 mile northwest of the junction with Wood Rose Way
846
Comment
SEINET13203265
Medicago orbicularis
George K. Helmkamp, Amy Barnes
2013-1
20234
Placer
Eastern Sacramento Valley: NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65 (Sheridan 7.5' Q.)
43
Comment
UCR258125
Medicago orbicularis
George K. Helmkamp, Amy Barnes
2014-3-21
22647
Placer
Sacramento Valley, Sheridan, Riosa Road at the west side of its junction with old CA-65
33
Comment
UCR258547
Medicago orbicularis
George K. Helmkamp, Amy Barnes
2013-3-28
20234
Placer
Eastern Sacramento Valley, NW edge of Sheridan, new section of Riosa Road, connecting new CA-65 with old CA-65
43
Comment
UCR170976
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2006-3-26
10100
El Dorado
Northern Sierra Nevada Foothills, ENE of Sacramento; Chili Bar, at Calif. Highway 193 and the bridge over the South Fork of the American River
296
Comment
UCR242764
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15850
Solano
Northern San Joaquin Valley, Tremont Road, 0.8 mile west of Mace Blvd, 3.8 mi. (air) SE of Davis
3
Comment
SD237447
Medicago praecox
G. K. Helmkamp, E. A. Helmkamp
2012-4-30
18877
El Dorado
Sierra Nevada Mountains Foothills: Mosquito Road, 0.3 mile north of the bridge over the South Fork American River (Slate Mountain 7.5'Q)
427
Comment
UCR176417
Melica
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10883
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
SEINET4142462
Melica bulbosa
George K. Helmkamp, E. A. Helmkamp
2012-5-3
18892
El Dorado
Northern Sierra Nevada Mountain Foothills: Forebay Road, 7.0 mi. NW of Pollock Pines
748
Comment
UCR249593
Melica harfordii
George K. Helmkamp, Elizabeth Helmkamp
2013-6-11
20819
Placer
Northern Sierra Nevada Mountains Foothills, Yankee Jim's Road, 3.6 miles northwest of its junction with Forest Hill Road
768
Comment
UCR123180
Melica imperfecta
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3878
San Luis Obispo
Outer South Coast Range; Santa Lucia Range, southwest of Paso Robles along CA Hwy 46 at York Mountain Road
366
Comment
UCR235394
Melica torreyana
George K. Helmkamp, E. A. Helmkamp
2012-5-15
18999
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
SD247429
Melilotus albus
George Helmkamp, Elizabeth Helmkamp
2013-8-14
22179
Alpine
Northern Sierra Nevada Mountains: along CA-89, 0.6 mile south of Markleeville (Markleeville 7.5'Q)
1691
Comment
UCR234189
Melilotus albus
George K. Helmkamp, E. A. Helmkamp
2010-9-23
16963
El Dorado
Northern Sierra Nevada Mountains, Forest Route 31, 3.9 miles north of its junction with Peavine Ridge Rd and Round Tent Canyon Road
1457
Comment
UCR253089
Melilotus albus
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22152
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 11.3 miles northeast of the town of Sutter Creek
582
Comment
RSA0035707
Melilotus officinalis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-8-14
22176
Alpine
along CA-89, 0.6 mile south of Markleeville
1691
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
RSA795086
Mentha arvensis
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18201
El Dorado
Silver Fork Road, 0.9 miles south of its junction with US-50 in Kyburz
1280
Comment
SD143865
Mentzelia involucrata
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2893
Imperial
4.7 miles N of Winterhaven on Picacho Road and 1 mile NW of the All-American Canal. Unnamed wash.
75
Comment
UCR104031
Mentzelia involucrata
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2737
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd.
488
Comment
UCR104844
Mentzelia involucrata
George K. Helmkamp, E. A. Helmkamp
1998-2-5
2672
Riverside
Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road.
457
Comment
SD143864
Mentzelia laevicaulis
G. Helmkamp, E. Helmkamp
1997-9-9
2302
Alpine
Junction of highways Ca-89 and Ca-4, south of Markleeville.
1798
Comment
SD247451
Mentzelia laevicaulis
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22175
Alpine
Northern Sierra Nevada Mountainss: along CA-89, 0.6 mile south of Markleeville (Markleeville 7.5'Q)
1691
Comment
RSA518919
Mesembryanthemum elongatum
George K. Helmkamp
1990-9-3
s.n.
San Luis Obispo
South end of Morro Bay, southwest of Baywood Park
15
Comment
SD236412
Micranthes californica
G. K. Helmkamp, E. A. Helmkamp
2008-6-3
13552
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
UCR129983
Micropus californicus var. californicus
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5568 A
Monterey
Salinas Valley, 3.0 miles south of Lockwood on Tule Cyn [Interlake] Rd.
244
Comment
UCR253532
Micropus californicus var. californicus
George K. Helmkamp, Amy Barnes
2014-4-23
22796
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
UCR258115
Mimulus
George K. Helmkamp, Amy Barnes
2014-8-11
23016
El Dorado
Northern Sierra Nevada Mountains, north of Union Valley Reservoir, junction of Robbs Peak Road and Ice House Road
1655
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
UCR122638
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3877
San Luis Obispo
Outer South Coast Range; Santa Lucia Range, southwest of Paso Robles along CA Hwy 46 at York Mountain Road
366
Comment
UCR130738
Mimulus aurantiacus
George K. Helmkamp, E. A. Helmkamp
1999-6-27
4940
Santa Clara
San Francisco Bay Region, Sierra Azul, Mt.Umunhum Rd 1/2 mi from Hicks Rd., 1/2 mi west of Bald Mtn., 4 mi south of San Jose & 2 mi west of Almaden Reservoir
732
Comment
UCR257061
Mimulus aurantiacus
George K. Helmkamp, Mary Alice Barnes
2013-5-17
20612
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
RSA0013380
Mimulus bicolor
George K. Helmkamp, E. A. Helmkamp
2011-7-7
17631
El Dorado
Park Creek Road, 0.4 mile east of its junction with (Co. Rd. E16) Sly Park Road, 1.4 mi. SE (111deg.) of Pollock Pines.
1290
Comment
UCR217269
Mimulus bicolor
George K. Helmkamp, Mary Jane Ganive, Mary Alice Barnes
2010-6-15
16299
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
CAS-BOT-BC520369
Mimulus bicolor
George K. Helmkamp
2014-5-28
22933
Calaveras
Northern Sierra Nevada Mountains: along Winton Rd along the N side of Wilson Lake
1127
Comment
CLARK-A1045-820
Mimulus bigelovii
George K. Helmkamp
1978-5-6
#1
San Bernardino
Mesquite Mountains lime kilns; ; Clark Mt. 15'Q
Comment
RSA0047749
Mimulus guttatus
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20377
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
UCR178757
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2006-9-20
11409
El Dorado
Northern Sierra Nevada Mountains Foothills, Bridal Veil Falls [on Esmeralda Creek], along Hwy US-50 just east of Pacific
1002
Comment
UCR219010
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16338
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
UCR230650
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17826
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1367
Comment
UCR241726
Mimulus guttatus
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19937
Nevada
Northern Sierra Nevada Mountains, Bowman Lake Road, 0.1 mile south of the bridge over the South Fork Yuba River
1424
Comment
RSA0012156
Mimulus jepsonii
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17828
Tuolumne
Forest Route 5N14, 1.8 miles southeast of Boards Crossing bridge of North Fork Stanislaus River.
1367
Comment
UCR197532
Mimulus layneae
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13708
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
RSA790109
Mimulus moschatus
George K. Helmkamp, E. A. Helmkamp
2011-7-26
17878
Nevada
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
UCR240957
Mimulus moschatus
George K. Helmkamp, E. A. Helmkamp
2012-9-25
19908
Placer
Northern Sierra Nevada Mountains, Blue Canyon Road south of I-80 and 0.1 mile north of the Southern Pacific Railroad crossing
1451
Comment
UCR18493
Mimulus nanus var. mephiticus
George K. Helmkamp
1978-6-21
s.n.
Mono
1.5 miles north of Whitmore along road to Hotcreek
2134
Comment
UCR110957
Mimulus pilosus
George K. Helmkamp
1998-6-27
4104
Riverside
Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring
1585
Comment
UCR253101
Mimulus primuloides var. primuloides
George K. Helmkamp, Belinda Pesheck
2013-7-14
21079
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road
2468
Comment
UCR188827
Minuartia californica
George K. Helmkamp, E. A. Helmkamp
2007-3-23
11692
El Dorado
Northern Sierra Nevada Mountains Foothills, hills bordering the east end of Sacramento Valley; Bass Lake Road at the southeast end of Bass Lake
381
Comment
UCR122269
Minuartia douglasii
George K. Helmkamp, E. A. Helmkamp
2002-4-15
7366
Santa Barbara
Western Transverse Range, Sierra Madre Mountains, Miranda Pine Road, 1.0 mi southeast of CA Hwy 166
549
Comment
CLARK-A1045-39
Mirabilis bigelovii var. retrorsa
George K. Helmkamp
1977-4-23
Inyo
Panamint Range west edge of Panamint Mountains; in a dry wash; ; Emigrant Pass 7.5' Q
1066
Comment
HSC79251
Mirabilis laevis var. villosa
G. K. Helmkamp
1984-5-2
- 24
Riverside
Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns.
550
Comment
UCR253085
Monardella breweri subsp. lanceolata
George K. Helmkamp, Elizabeth Helmkamp
2013-7-6
21001
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 1.3 miles east of Pebble Canyon Road, 25 mi. airline ESE (94 deg. ) of Placerville
1819
Comment
SD248449
Monardella odoratissima
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20914
El Dorado
Northern Sierra Nevada Mountains: Silver Fork Road, north side of its junction with Mormon Emigrant Trail (Tragedy Spring 7.5'Q)
2188
Comment
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
UCD125215
Monardella odoratissima subsp. pallida
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11112
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
UCD125218
Monardella odoratissima subsp. pallida
G. K. Helmkamp; E. A. Helmkamp
2007-7-7
12504
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 12.0 miles south of its junction with CA-88.
2549
Comment
UCD125219
Monardella odoratissima subsp. pallida
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12547
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, ca. 9 miles south of its junction with CA-88.
2511
Comment
UCR175737
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2006-7-31
11066
El Dorado
Northern Sierra Nevada Mountains, along Wrights Lake Road (Forest Route 4), 3.3 miles north of Hwy US-50
2049
Comment
UCR216046
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15352
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR219050
Monardella odoratissima subsp. pallida
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16518
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
UCR252795
Monardella odoratissima subsp. pallida
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22100
Alpine
Northern Sierra Nevada Mountains, along CA-88, Carson Pass Hwy, 1.6 miles east of the Caples Lake dam
2486
Comment
CAS-BOT-BC220475
Monardella sheltonii
G. K. Helmkamp; E. A. Helmkamp
2007-5-30
12206
Placer
Northern Sierra Nevada Mountains Foothills: Mosquito Ridge Road, 8.5 miles east of its junction with Forest Hill Road in Foresthill
488
Comment
SD237508
Monardella sheltonii
G. K. Helmkamp, E. A. Helmkamp
2009-6-29
15058
El Dorado
Sierra Nevada Mountains Foothills: Ice House Road, 0.2 miles north of its junction with CA-50, c. 7.3 miles ENE (83a^z) of Pollock Pines.
989
Comment
CLARK-A1045-1336
Monardella undulata
George K. Helmkamp
1977-7-4
San Luis Obispo
Los Osos vacant lot; ; Morro Bay S 7.5'Q
30
Comment
UCR123939
Monolepis nuttalliana
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6545
Kern
San Joaquin Valley, Enos Lane Rd., 1.9 mi south of Calif. Hwy 119, NE of Taft
61
Comment
UCR104835
Monoptilon bellioides
George K. Helmkamp
1998-4-4
3165
Riverside
Sonoran (Colorado) Desert, 7.1 miles north of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station
305
Comment
UCR122934
Monoptilon bellioides
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6415
San Bernardino
Eastern Mojave Desert, US-95, 8.5 mi south of I-40.
351
Comment
UCR124180
Montia chamissoi
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4375
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
Comment
UCR234640
Montia linearis
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18109
Alpine
Northern Sierra Nevada Mountains, Tamarack Road, 1.2 miles east of its junction with Blue Lakes Road
2451
Comment
UCR233328
Muhlenbergia andina
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18229
El Dorado
Northern Sierra Nevada Mountains, Silver Fork Road, 3.1 miles north of its junction with the Mormon Emigrant Trail
1523
Comment
RSA750322
Muhlenbergia filiformis
George K. Helmkamp, E. A. Helmkamp
2008-8-1
13950
El Dorado
Wright's Lake Road, 2.2 miles south of the entrance to Wright's Lake
2070
Comment
SEINET13276720
Muhlenbergia filiformis
George K. Helmkamp, Amy Barnes
2012-1
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 Reservior (Robbs Peak 7.5' Q.)
1756
Comment
UCR191126
Muhlenbergia filiformis
George K. Helmkamp, E. A. Helmkamp
2007-8-16
12768
Amador
Northern Sierra Nevada Mountains, along the south side of Bear River Reservoir just east of the spillway
1777
Comment
UCR206337
Myosotis laxa
George K. Helmkamp, E. A. Helmkamp
2009-6-14
15024 B
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
UCR229451
Myosotis laxa
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18067
Alpine
Northern Sierra Nevada Mountains, south side of Bear Valley Village, along CA Hwy 4
2169
Comment
CLARK-A1045-527
Myosurus aristatus
George K. Helmkamp
1979-6-22
San Bernardino
San Bernardino Mountains north of Forest Service road 3N08, .8 mile east of Van Dusen Canyon Road; drying pool; Big Bear City 7.5'Q
Comment
SD224992
Nama demissa var. demissa
G. K. Helmkamp
1998-3-30
3046
San Bernardino
Mojave Desert: vicinity of Twentynine Palms; Encelia Rd, 1.0 mi. N of CA hwy 62.
792
Comment
UCR101132
Nama demissa var. demissa
George K. Helmkamp, E. A. Helmkamp
1998-3-19
2950
Imperial
Sonoran (Colorado) Desert, Little Picacho Wash along Picacho Rd, 2.5 mi. south of Picacho State Recreation Area
152
Comment
UCR122587
Navarretia hamata subsp. leptantha
George K. Helmkamp
1995-11-23
108
San Luis Obispo
Central Coast, Junction of Martingale Avenue and Buckskin Drive in Los Osos
46
Comment
SBBG127565
Navarretia leptalea subsp. leptalea
G. K. Helmkamp, E. A. Helmkamp
2009-7-22
15267
El Dorado
Wrights Lake Rd, 1.2 mi S of Wrights Lake
2073
Comment
SD243177
Navarretia leptalea subsp. leptalea
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16667
Placer
Northern Sierra Nevada Mountains: Forest Hill Road, 1.6 miles west of the junction with Soda Springs road at Robinson Flat. Roadside.
2040
Comment
SEINET11261852
Navarretia leucocephala
George Helmkamp, E. A. Helmkamp
2011-7-26
17873
Nevada
Northern Sierra Nevada Mountains: along CA Hwy 20, .8 mi east of Bowman Lake Road, 1.23 mi. NE (501/4) of Emigrant Gap and .35 mi. N of I-80 (Blue Canyon 7.5 Q.); 0
1541
Comment
UCR198536
Navarretia leucocephala subsp. leucocephala
George K. Helmkamp, E. A. Helmkamp
2008-4-17
13287
Placer
Sacramento Valley, Ranch House Road, 0.2 mile southeast of Sheridan
37
Comment
UCR121584
Navarretia squarrosa
George K. Helmkamp, E. A. Helmkamp
1999-6-28
4985
San Mateo
Pescadero Creek Watershed, Pescadero Road just north of Loma Mar
107
Comment
UCR41594
Nemacladus longiflorus var. breviflorus
George K. Helmkamp
1986-4-5
734
San Bernardino
Little San Bernardino Mtns/Southern Mojave Desert, Morongo Valley, NE end of the Nature Conservancy Preserve, along the Desert Wash Trail
823
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
UCR198491
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13385
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
UCR206343
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2009-5-19
14717
El Dorado
Sierra Nevada Mountains Foothills, Happy Valley Road, 0.2 miles west of its junction with Happy Valley Cutoff road
561
Comment
UCR235601
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2012-4-27
18862
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
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
UCR218259
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
2127
Comment
UCR97578
Nemophila menziesii
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1411
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
UCR106420
Nemophila menziesii var. menziesii
George K. Helmkamp, A. C. Sanders
1997-3-15
1489
Riverside
Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal.
488
Comment
UCR185229
Nemophila menziesii var. menziesii
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11791
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
UCR256506
Nemophila parviflora
George K. Helmkamp, Amy Barnes
2014-5-8
22851
Amador
Sacramento Valley/Sierra Nevada Foothills, along CA-104, 1.2 miles southeast of Ione
146
Comment
UCR256983
Nemophila parviflora
George K. Helmkamp
2014-5-17
22895
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
SD197799
Nemophila parviflora var. parviflora
G. K. Helmkamp, E. A. Helmkamp
2007-4-30
11885
El Dorado
Northern Sierra Nevada Mountains: hiking trail leaving CA-49, 3.4 miles northwest of Placerville.
511
Comment
SD241048
Nemophila parviflora var. parviflora
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16340
Amador
Northern Sierra Nevada Mountains Foothills: Sutter Creek Road, 7.2 miles northeast of its junction with old CA-49 in Sutter Creek village (Pine Grove 7.5'Q)
473
Comment
SD241050
Nemophila pulchella var. fremontii
George K. Helmkamp, E. A. Helmkamp
2011-4-12
17177
El Dorado
Northern Sierra Nevada Mountains Foothills: Placerville, along Forni Road 0.2 mile northwest of its Weber Creek crossing, SE of Hwy 50 near Diamond Springs (Placerville 7.5'Q)
487
Comment
UCR222894
Nemophila pulchella var. fremontii
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15901
Placer
Sierra Nevada Mountains Foothills, along CA-49, 2.5 miles southeast of Pilot Hill
271
Comment
UCR198563
Nemophila pulchella var. gracilis
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13168
Amador
Sierra Nevada Mountains Foothills, Middle Bar Road, 3.7 miles south of its junction with CA-49 just south of Jackson
345
Comment
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
RSA489395
Nicotiana obtusifolia
George K. Helmkamp
1988-2-28
s.n.
Imperial
At end of dirt road ca. 2 miles WSW of Crucifixion Thorn Natural Area, SE of Ocotillo and SW of Hwy 98. [10 km cell; PG-1N, 0E]
152
Comment
CLARK-A1045-307
Nicotiana trigonophylla
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q
1066
Comment
UCR130626
Notholithocarpus densiflorus
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4863
Monterey
Santa Lucia Mountains, Willow Creek Road, 6.3 mi east of Calif. Hwy 1 north of Gorda
1037
Comment
UCR61719
Notholithocarpus densiflorus
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
UCR122654
Oenothera cespitosa subsp. marginata
George K. Helmkamp, E. A. Helmkamp
1998-3-16
2850
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
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
UCR102985
Oenothera deltoides var. deltoides
George K. Helmkamp
1998-3-30
3014
San Bernardino
Mojave Desert, Dale Dry Lake, east of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR217896
Oenothera elata subsp. hirsutissima
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16448
El Dorado
Sierra Nevada Mountains, Silver Fork road, at the junction with US-50 in Kyburz
1328
Comment
UCR245589
Oenothera villosa subsp. strigosa
George K. Helmkamp, Amy Barnes
2013-9-24
22359
Calaveras
Northern Sierra Nevada Mountains, SE side of White Pines Reservoir, 0.6 mile NE of Arnold
1184
Comment
SBBG103900
Oligomeris linifolia
G. K. Helmkamp
1993-4-24
San Bernardino
Smith Talc Rd, ca. 9 mi E of Tecopa Pass
762
Comment
UCR67387
Orthilia secunda
George K. Helmkamp
1990-8-2
s.n.
Mono
Eastern Sierra Nevada Mountains, between Mammoth and Lake Mary
2591
Comment
UCR232184
Oryza sativa
George K. Helmkamp, E. A. Helmkamp
2011-10-8
18392
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
SEINET3244044
Oryzopsis hymenoides
G. Helmkamp
1993-1
23 -3
San Bernardino
Dry slope along the edge of Burns Canyon.
1372
Comment
CLARK-A1045-919
Oryzopsis miliacea
George K. Helmkamp
1977-8-11
Ventura
Port Hueneme 246 East A Street; in empty lot beside this address; Oxnard 7.5'Q
Comment
RSA0012132
Osmorhiza berteroi
George K. Helmkamp, E. Helmkamp
2011-7-7
17636
El Dorado
Park Creek Road, 0.4 mile east of its junction with (Co. Rd. E16) Sly Park Road, 1.4 mi. SE (111 deg ) of Pollock Pines
1290
Comment
UCR222527
Osmorhiza chilensis
George K. Helmkamp, E. A. Helmkamp
2010-6-5
16250
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
UCR230614
Osmorhiza chilensis
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17835
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 3.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1494
Comment
UCR237360
Osmorhiza chilensis
George K. Helmkamp, E. A. Helmkamp
2012-6-13
19203
Nevada
Northern Sierra Nevada Mountains Foothills, Maybert Road along South Yuba River, 0.6 mi. northeast of the river bridge at Washington
796
Comment
UCR57536
Osmorhiza chilensis
George K. Helmkamp
1989-8-1
s.n.
Mono
Sierra Nevada Mtns., West Walker River, at Hwy 395, 4 mi. south of Walker
1890
Comment
UCR219831
Oxalis corniculata
George K. Helmkamp, E. A. Helmkamp
2009-11-12
15737
El Dorado
Sierra Nevada Mountains Foothills, Lake Oaks Mobile Home Park including Patterson Lake; Diamond Springs
521
Comment
UCR123162
Oxalis corniculata subsp. pilosa
George K. Helmkamp, E. A. Helmkamp
2002-4-16
7404
San Luis Obispo
Central Coast, Park Ridge 0.5 mi east of Morro Bay near Turri Road
76
Comment
RSA714094
Oxalis pes-caprae
George K. Helmkamp
2003-12-18
8230
San Luis Obispo
Arroyo Grande, Courtland Ave. one block S of Grand Ave. Brooklyn Creek, opposite San Francisco.
15
Comment
UCR132124
Oxalis rubra
George K. Helmkamp, E. A. Helmkamp
2000-6-18
5724
Mendocino
North Coast, Glass Beach, Fort Bragg
9
Comment
CLARK-A1045-8
Oxytheca perfoliata
George K. Helmkamp
1977-4-21
San Bernardino
7 miles north of Adelanto; east of U.S. 395; ; Victorville Northwest 7.5' Q
883
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
UCR102996
Palafoxia arida var. arida
George K. Helmkamp
1998-3-30
3009
San Bernardino
Mojave Desert, Dale Dry Lake, east of Twentynine Palms; along Iron Age Rd, 4.2 mi. SE of Amboy Rd.
366
Comment
UCR118296
Palafoxia arida var. arida
George K. Helmkamp, E. A. Helmkamp
1998-4-19
3368
San Bernardino
Mojave Desert, northwest side of East Cronese Lake, about 15 miles west of Baker
335
Comment
CDA25209
Panicum capillare
G. K. Helmkamp, E. A. Helmkamp
2007-10-13
13095
San Joaquin
Northern San Joaquin Valley; Along Highway CA-88, 1.0 mile southwest of Clements at Disch Road.
Comment
UCR181951
Panicum capillare
George K. Helmkamp, E. A. Helmkamp
2006-10-8
11495
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
UCR201937
Panicum capillare
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14204
Yuba
Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst
24
Comment
UCR247243
Panicum capillare
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22170
Alpine
Northern Sierra Nevada Mountains, along CA-89, 0.6 mile south of Markleeville
1691
Comment
UCR257556
Papaver rhoeas
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20604
Amador
Sierra Nevada Mountains, in the town of Pioneer, 0.1 mile west of Pioneer Creek Road along Hwy 88/Carson Pass Hwy
902
Comment
UCR231023
Parentucellia viscosa
George K. Helmkamp, E. A. Helmkamp
2011-6-22
17614
Amador
Northern Sierra Nevada Mountains Foothills, Sutter-Ione Road, 2.2 miles west of its junction with CA-49
313
Comment
UCR233194B
Parvisedum pumilum
George K. Helmkamp, E. A. Helmkamp
2010-4-7
15843
Amador
Northeast San Joaquin Valley, along CA-88, 0.9 mile northeast of the San Joaquin County line
84
Comment
UCR170418
Paspalum dilatatum
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10025
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
UCR170430
Paspalum dilatatum
George K. Helmkamp, Elizabeth Helmkamp
2005-10-29
10004 B
El Dorado
Northern Sierra Nevada Foothills, [E of Sacramento, 3 air mi N of Placerville]; 1.9 [road] mi east of Calif. Highway 193 along Rock Creek Road
381
Comment
UCR232673
Paspalum dilatatum
George K. Helmkamp, E. A. Helmkamp
2011-10-15
18437
San Joaquin
San Joaquin Valley, along CA-26, 0.6 mile northeast of Escalon-Bellota Rd.
40
Comment
UCR253537
Paspalum dilatatum
George K. Helmkamp, Amy Barnes
2013-9-23
22308
Calaveras
Sierra Nevada Mountains Foothills, Utica Powerhouse Road (beside Angel's Creek), 0.6 mile northeast of its junction with CA-4
974
Comment
UCR259868
Paspalum dilatatum
George K. Helmkamp, Elizabeth Helmkamp
2013-11-2
22469
Placer
Sacramento Valley, West Wise Road just east of the junction with California Lane, north of Lincoln
56
Comment
UCR104008
Pectocarya platycarpa
George K. Helmkamp
1998-4-4
3100
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
CLARK-A1045-298
Pectocarya recurvata
George K. Helmkamp
1977-3-20
Riverside
Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q
Comment
UCR140458
Pellaea andromedifolia
George K. Helmkamp
2004-4-21
8465
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCR160383
Pellaea andromedifolia
George K. Helmkamp, E. A. Helmkamp
2005-6-9
9619
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
RSA0049803
Pellaea bridgesii
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19339
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
UCR122741
Penstemon centranthifolius
George K. Helmkamp, E. A. Helmkamp
1998-4-24
3380
Riverside
Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains
1296
Comment
UCR130706
Penstemon centranthifolius
George K. Helmkamp, E. A. Helmkamp
1998-6-27
4070
Riverside
San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd.
1372
Comment
UCR15396
Penstemon eatonii
George K. Helmkamp
1977-5-30
s.n.
San Bernardino
Eastern Mojave Desert, Granite Mtns above Cottonwood Springs
Comment
CLARK-A1045-950
Penstemon grinnellii subsp. scrophularioides
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, 3 miles north of the Kern/Tulare County line; Kernville 7.5'Q
Comment
UCR102604
Penstemon heterodoxus var. heterodoxus
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2365
Mono
Sierra Nevada Mtns., along Calif. Hwy 120, 0.5 mile north of Tioga Pass, Nunatak Meadow area
2957
Comment
CLARK-A1045-1001
Penstemon incertus
George K. Helmkamp
1977-6-12
Tulare
Kern River along the River, 3 miles north of the Kern/Tulare County line; Kernville 7.5'Q
Comment
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
SD241192
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17913
El Dorado
Northern Sierra Nevada Mountains: Omo Ranch Road at the junction with North-South Road, 0.67 miles NW (300a^z) of junction with Hwy-88; 8.9 miles southeast of Omo Ranch Caldor 7.5'Q)
1456
Comment
UCR229580
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-7-30
17913
El Dorado
Northern Sierra Nevada Mountains, Omo Ranch Road at the junction with North-South Road, 0.67 mi. NW (300 deg. ) of jct. with Hwy 88; 8.9 miles southeast of Omo Ranch
1457
Comment
UCR242803
Penstemon laetus subsp. laetus
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17590
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
UCR197824
Penstemon newberryi var. newberryi
George K. Helmkamp, E. A. Helmkamp
2008-7-16
13845
Alpine
Northern Sierra Nevada Mountains, 0.1 mile south of CA-88 on a dead-end spur south of Carson Pass
2595
Comment
UCR130988
Penstemon palmeri
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3524
San Bernardino
Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley
1067
Comment
RSA715282
Penstemon roezlii
George K. Helmkamp, E. A. Helmkamp
2006-6-19
10768
El Dorado
Northern Sierra Nevada Mountains: about 1.3 miles north of Hwy US-50 on Wright's Lake Road
1677
Comment
RSA739789
Penstemon roezlii
George K. Helmkamp
2007-6-29
12431
Amador
Sandy Cove picnic area southeast of CA-88 beside the west edge of Silver Lake
2244
Comment
SD236427
Penstemon roezlii
G. K. Helmkamp
2006-6-19
10768
El Dorado
Northern Sierra Nevada Mountains: about 1.3 miles north of Hwy US-50 on Wright's Lake Road
1677
Comment
UCR209752
Penstemon roezlii
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15443
Placer
Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill
2034
Comment
UCR253114
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
RSA739785
Penstemon rydbergii var. oreocharis
George K. Helmkamp
2007-6-29
12440
Amador
Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
SD243213
Penstemon rydbergii var. oreocharis
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18099
Alpine
Northern Sierra Nevada Mountains: Blue Lakes Road, 6.6 miles south of its junction with CA-88. Large meadow.
2296
Comment
SEINET3260377
Penstemon rydbergii var. oreocharis
George K. Helmkamp, E. A. Helmkamp
2008-8-8
14005
Alpine
Northern Sierra Nevada Mountains; along Blue Lake Road, 9.2 miles south of its junction with CA-88.
2512
Comment
UCR103820
Penstemon rydbergii var. oreocharis
George K. Helmkamp, E. A. Helmkamp
1997-9-11
2400
Alpine
Sierra Nevada Mountains, 0.2 mi northwest of Sonora Pass along CA Hwy 108
2912
Comment
UCR219677
Penstemon rydbergii var. oreocharis
George K. Helmkamp, Amy Barnes, Ann Kerchner
2010-7-19
16581
El Dorado
Northern Sierra Nevada Mountains, southernmost point of Wright's Lake, 5.6 mi. NE (33 deg. ) of Kyburz
2085
Comment
UCR250341
Pentagramma pallida
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20368
Placer
Northern Sierra Nevada Mtns Foothills, Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 deg. ) of Weimar
512
Comment
UCD137740
Pentagramma triangularis
G. K. Helmkamp; E. A. Helmkamp
2006-3-26
10111
El Dorado
Northern Sierra Nevada Foothills: ENE of Sacramento; Rock Creek Road, 1.4 miles east of CA Highway 193 (generally east of Chili Bar).
428
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
UCR123207
Pentagramma triangularis subsp. triangularis
George K. Helmkamp, E. A. Helmkamp
2001-5-29
6717
San Benito
South Coast Range, Gabilan Range, 7.1 mi. south of San Juan Bautista on Hwy G-1
488
Comment
UCD127884
Perideridia lemmonii
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12513
Amador
Northern Sierra Nevada Mountains: along CA-88, 0.7 mile north of its junction with Mormon Emigrant Trail; Shot Rock trailhead.
2325
Comment
UCR234624
Perideridia lemmonii
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18114
Alpine
Northern Sierra Nevada Mountains, Tamarack Road, 0.1 mile east of its junction with Blue Lakes Road
2485
Comment
UCR252799
Perideridia lemmonii
George K. Helmkamp, Elizabeth Helmkamp
2013-8-2
22091
Alpine
Northern Sierra Nevada Mountains, along CA-88, Carson Pass Hwy, 1.6 miles east of the Caples Lake dam
2486
Comment
SD212457
Perideridia parishii
G. K. Helmkamp, Elizabeth Helmkamp
2005-9-23
9929
El Dorado
Northern Sierra Nevada Mountains; Wright's Lake Tie Road, 1.0 mile west of its junction with Wright's Lake Road.
2043
Comment
RSA0013390
Perideridia parishii subsp. latifolia
George K. Helmkamp, E. 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
UCR122959
Perityle emoryi
George K. Helmkamp, E. A. Helmkamp
2001-3-30
6426
San Bernardino
Eastern Mojave Desert, US-95, 8.5 mi south of I-40.
351
Comment
SD236379
Persicaria hydropiper
G. K. Helmkamp, E. A. Helmkamp
2006-10-10
11528
Yuba
Northern Sierra Nevada Mountains Foothills: along Hwy Ca-49 just north of Nevaday county line at the Middle Yuba River Bridge.
451
Comment
UCR250351
Petrorhagia dubia
George K. Helmkamp, Mary Alice Barnes
2013-4-18
20357
Placer
Northern Sierra Nevada Mtns Foothills, Yankee Jim Road, 2.4 miles east of its junction with Canyon Way, 2.5 mi. ENE (78 deg. ) of Weimar
512
Comment
HSC79024
Phacelia campanularia
G. K. Helmkamp
1984-4-29
- 38
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
CLARK-A1045-1333
Phacelia cicutaria subsp. hispida
George K. Helmkamp
1978-4-22
San Luis Obispo
Los Padres National Forest Cerro Alto Camground; Atascadero 7.5'Q
Comment
SD148139
Phacelia ciliata
G. K. Helmkamp, E. A. Helmkamp
2001-4-27
6537
Kern
Enos Lane Road, 1.9 mile south of CA-119, northeast sof Taft.
60
Comment
UCR97539
Phacelia ciliata
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1408
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
CLARK-A1045-428
Phacelia curvipes
George K. Helmkamp
1979-6-5
#5
San Bernardino
San Bernardino Mountains 1.5 miles east of fawnskin; dry slope under pines; ; Fawnskin 7.5'Q
2133
Comment
SD143846
Phacelia distans
G. K. Helmkamp, E. A. Helmkamp
1998-4-8
3250
Kern
2.3 miles northeast of Cerro Noroeste Road along CA Highway 33, southwest of Maricopa.
793
Comment
UCR104063
Phacelia distans
George K. Helmkamp
1998-4-4
3104
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
UCR163770
Phacelia distans
George K. Helmkamp, E. A. Helmkamp
2005-3-31
9281
Santa Barbara
Outer South Coast Ranges, San Rafael Mountains. 14.0 mi NE of Los Olivos along Figueroa Mountain Road
1000
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
CLARK-A1045-1235
Phacelia gymnoclada
George K. Helmkamp
1979-6-12
Mono
Owens River drying alkaline mud flat, 4.5 miles south of Arcularius Ranch; Whitmore Hot Springs 7.5'Q
Comment
UCD120477
Phacelia hastata subsp. hastata
G. 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
UCD120486
Phacelia hastata subsp. hastata
G. K. Helmkamp; E. A. Helmkamp
2007-8-16
12752
Amador
Northern Sierra Nevada Mountains: along Hwy CA-88, 3.5 miles south of its junction with Mormon Emigrant Trail.
Comment
RSA781286
Phacelia hastata var. compacta
George K. Helmkamp, E. A. Helmkamp
2009-6-29
15057
El Dorado
Ice House Road, 0.2 miles north of its junction with CA-50, c. 7.3 miles ENE (83 deg ) of Pollock Pines
989
Comment
SEINET1908459
Phacelia hastata var. compacta
G. K. Helmkamp, E. A. Helmkamp
2008-1
13614
El Dorado
Sierra Nevada Mountains Foothills: Forbay Road. 0.5 mile north of its crossing of the South Fork American River.
668
Comment
UCR60015
Phacelia hastata var. compacta
George K. Helmkamp
1988-9-7
s.n.
Mono
Eastern Sierra Nevada Mountains, Hwy 395, 29 miles north of Inyo Co. line
2195
Comment
SD234890
Phacelia hastata var. hastata
G. K. Helmkamp, E. A. Helmkamp
2007-6-6
12282
El Dorado
Northern Sierra Nevada Mountains: Bonetti Road, 3.2 miles south of its junction with Mormon Emigrant Trail, east of Jenkinson Lake and near Diamond Creek.
1189
Comment
SEINET4560892
Phacelia hastata var. hastata
George K. Helmkamp, E. A. Helmkamp
2011-1
17509
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
UCR189910
Phacelia hastata var. hastata
George K. Helmkamp, E. A. Helmkamp
2007-8-9
12725
El Dorado
Northern Sierra Nevada Mountains, Wright's Lake Road, 1.1 miles south of the lake
2113
Comment
UCR249989
Phacelia hastata var. hastata
George K. Helmkamp, Elizabeth Helmkamp
2013-6-19
20934
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
UCR253091
Phacelia hydrophylloides
George K. Helmkamp, Belinda Pesheck
2013-7-14
21067
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road
2468
Comment
UCR121782
Phacelia imbricata
George K. Helmkamp, E. A. Helmkamp
2000-4-21
5451
San Luis Obispo
Santa Lucia Range, Santa Rosa Creek Road, 5.6 mi east of Cambria
76
Comment
UCR26643
Phacelia inyoensis
George K. Helmkamp
1982-7-1
s.n.
Mono
Owens Valley, along the Owens River at Arcularius Ranch
2149
Comment Read comments May 31 2011
CLARK-A1045-1044
Phacelia leucophylla
George K. Helmkamp
1977-7-3
Mono
Long Valley corner of US Highway 395 and Owens River Road; disturbed soil; ; ; Old Mammoth 7.5'Q
2194
Comment
UCR121462
Phacelia marcescens
George K. Helmkamp
1999-6-30
5103
Nevada
Northern Sierra Nevada Range, Truckee, 1-2 mi. east of Donner Lake.
1540
Comment
UCR218438
Phacelia mutabilis
George K. Helmkamp, Mary Alice Barnes & Mary Jane Ganibe
2010-7-6
16453
El Dorado
Sierra Nevada Mountains, Silver Fork Road, 1.9 miles south of its junction with US-50 in Kyburz
1473
Comment
UCR242337
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
2232
Comment
SD225001
Phacelia parryi
G. K. Helmkamp
1998-4-3
3063
Riverside
Whitewater River, bordering the N side of Hwy I-10; E side of the river.
395
Comment
UCR230624
Phacelia quickii
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17839
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 3.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1494
Comment
RSA0047364
Phacelia racemosa
George K. Helmkamp, E. A. Helmkamp
2012-6-19
19239
Placer
Foresthill Road, 9.2 miles east of its junction with Devil s Thumb Road
2055
Comment
SD247445
Phacelia racemosa
George K. Helmkamp, E. A. Helmkamp
2012-6-19
19239
Placer
Northern Sierra Nevada Mountains: Foresterhill Road, 9.2 miles east of its junction with Devil's Thumb Road (Duncan Peak 7.5'Q)
2054
Comment
UCR158564
Phacelia ramosissima var. montereyensis
George K. Helmkamp
2004-6-15
8636
San Luis Obispo
Central Coast, Between Oso Flaco Lake and the Pacific Ocean, c. 0.3 mi WNW of the lake
9
Comment
SD225002
Phacelia ramosissima var. subglabra
G. K. Helmkamp
1997-9-30
2505
Inyo
Sierra Nevada Mountains; Lone Pine Crk.
2286
Comment
UCR248480
Phacelia ramosissima var. subglabra
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
22016
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
CLARK-A1045-845
Phacelia rotundifolia
George K. Helmkamp
1977-5-29
San Bernardino
Mesquite Mountains limestone [slope?]; Clark Mt. 15'Q
Comment
UCR122560
Phacelia tanacetifolia
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6558
Kern
Temblor Range, CA Hwy 58, 1.1 mi SW of the San Luis Obispo Co. line
793
Comment
UCR122576
Phacelia vallis-mortae
George K. Helmkamp, E. A. Helmkamp
2001-3-24
6310
San Bernardino
Southcentral Mojave Desert, 0.3 mile west of CA Hwy 247 on Pipes Canyon Road
1037
Comment
UCR96265
Phalaris aquatica
George K. Helmkamp
1996-9-22
1196
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
SD212643
Philadelphus lewisii
G. K. Helmkamp, Elizabeth A. Helmkamp
2006-6-14
10705
Placer
0.2 mile north of Forest Hill Road on unnamed road to Lake Clementine.
487
Comment
UCD117280
Philadelphus lewisii
G. K. Helmkamp; E. A. Helmkamp
2006-6-29
10777
Calaveras
Northern Sierra Nevada: Along Hwy CA-26, 12.3 miles E of the Mokelumne Hill turnoff from Hwy CA-49.
640
Comment
UCR173737
Philadelphus lewisii
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-14
10705
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
UC2015567
Phleum alpinum
G. Helmkamp
1995-9-23
3 -30
Alpine
West side of Sonora Pass just beyond the Mono County line.
Comment
SEINET9258994
Phleum pratense
George K. Helmkamp, Elizabeth Helmkamp
2013-1
20998
Amador
Northern Sierra Nevada Mountains: Bear River Road, 1.5 road miles east of the dam for Lower Bear River Reservoir
1836
Comment
UCR110970
Phlox austromontana
George K. Helmkamp
1998-6-27
4107
Riverside
Santa Rosa Mtns., 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), below Mountain Home Spring
1799
Comment
UCD118300
Phlox condensata
G. K. Helmkamp
2007-7-7
12493
Alpine
Northern Sierra Nevada Mountains: Blue Lake Road, 0.2 mile south of its junction with CA-88.
2200
Comment
UCR14518
Phlox condensata
George K. Helmkamp
1974-6-9
s.n.
Mono
Eastern Sierra/Owens Valley, Benton Crossing on Owens River
2134
Comment
RSA756756
Phlox diffusa
George K. Helmkamp, Ann Kerchner
2009-7-25
15300
Alpine
Blue Lakes Road, 8.5 miles south of its junction with CA-88
2491
Comment
UCR101007
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
1998-4-8
3243
San Luis Obispo
Soda Lake Rd at Arrowbear Trail, vic. of California Valley, c. 5 mi. NW of Soda Lake
610
Comment
UCR206397
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14370
Colusa
Inner North Coast Range Foothills, along CA-20, 9.7 miles southwest of Williams, on the north side of Salt Creek
162
Comment
UCR87503
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
25.6 miles NW of Canby along Calif. Hwy 139
1280
Comment
UCR61760
Pholistoma auritum
George K. Helmkamp
1990-4-1
s.n.
San Luis Obispo
West Cuesta Ridge, c. 3 mi west of US Hwy 101
671
Comment
UCR161794
Pholistoma auritum var. auritum
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9153
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 6.2 mi. NNE of Los Olivos
402
Comment
RSA614977
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 CA Hwy 33 (roughly WNW of Maricopa).
549
Comment
SBBG93092
Pholistoma membranaceum
G. K. Helmkamp
1990-4-19
s.n.
Kern
St Hwy 58, 1.5 mi E of San Luis Obispo County Line
853
Comment
SEINET235762
Pholistoma membranaceum
G. K. Helmkamp, E. A. Helmkamp
1998-5-14
3666
San Benito
Along CA Hwy 25 17.6 miles northeast of the junction with CA Hwy 198.
488
Comment
UCR130084
Pholistoma membranaceum
George K. Helmkamp, E. A. Helmkamp
2000-4-24
5560
Monterey
Inner South Coast Ranges, Salinas Valley, 6 miles south of King City and 0.6 mile east of G-14 (Jolon Rd) on San Lucas Rd.
183
Comment
RSA709318
Phoradendron villosum
George K. Helmkamp
2004-4-23
8533
Santa Barbara
San Rafael Mountains: Figueroa Mountain Rd., 15.0 Owens peak region, Gold Canyonmi NE of Los Olivos.
1341
Comment
UCR136214
Phoradendron villosum
George K. Helmkamp, E. A. Helmkamp
1999-9-30
5309
San Bernardino
East side San Bernardino Mountains., 7.3 mi up Burns cyn Rd from Rimrock Rd (NW of Pioneertown)
1799
Comment
UCR241163
Phoradendron villosum
George K. Helmkamp, E. A. Helmkamp
2012-10-3
19952
Sacramento
Southeast Sacramento Valley, bike trail parking area at the south side of the American River, 0.6 mile west of Gold Country Road
27
Comment
SD257374
Phyla nodiflora
George K. Helmkamp, Mary Alice Barnes
2013-5-8
20526
Yolo
Southern Sacramento Valley: Yolo Bypass Wildlife Area, 0.9 mile southeast of the hunction of Chiles Road and I-80, between Sacreamento and Davis (Davis 7.5'Q)
13
Comment
RSA615335
Physalis crassifolia
George K. Helmkamp, E. A. Helmkamp
1998-2-18
2692
Riverside
Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains
Comment
SBBG83842
Physalis crassifolia
G. K. Helmkamp
1986-10-18
San Bernardino
Whipple Mtns, along Havasu Palms Rd, ca. 3 mi NW of Black Meadow Landing Rd
396
Comment
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
UCR233040
Picris echioides
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17268
Sutter
Sacramento Valley, Howsley Road at CA-99/El Centro Blvd., 3.3 miles west of Pleasant Grove
30
Comment
UCR114352
Pinus contorta subsp. murrayana
George K. Helmkamp, E. A. Helmkamp
2000-7-17
5810
Mono
Sierra Nevada Mountains, South Twin Lake along Lake Mary Road, 3 miles SW of Mammoth Lakes
2561
Comment
UCR129544
Pinus contorta subsp. murrayana
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6834
Mono
Sierra Nevada Mountains, Virginia Lakes Road, 2.4 mi from US Hwy 395
2683
Comment
UCR176223
Pinus contorta subsp. murrayana
George K. Helmkamp, E. A. Helmkamp
2006-7-10
10913
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
UCR146834
Piptatherum miliaceum
George K. Helmkamp, E. A. Helmkamp
2004-9-29
8818
Santa Barbara
Santa Ynez Mountains, Stagecoach Road at junction with Calif. Hwy 154, SE of Lake Cachuma
561
Comment
UCR140152
Pisum sativum
George K. Helmkamp
2004-2-6
8250
San Luis Obispo
Central Coast, Riverside Road at the low end of Nipomo Mesa beside Division Road
46
Comment
UCR237594
Plagiobothrys
George K. Helmkamp, E. A. Helmkamp
2012-4-21
18822
Nevada
Northern Sierra Nevada Mountains Foothills, McCourtney Road, 0.4 mile east of its junction with Perimeter Rd., 14.5 mi. NW (338 deg. ) of Auburn
407
Comment
UCR250691
Plagiobothrys fulvus
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20191
Calaveras
Northern Sierra Nevada Mountains Foothills, Along CA-26, 5.1 miles southwest of Mokelumne Hill
393
Comment
CLARK-A1045-64
Plagiobothrys nothofulvus
George K. Helmkamp
1979-4-27
Riverside
Santa Ana Mountains head of De Luz Creek; Wildomar 7.5'Q
Comment
SD241781
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2012-3-31
18646
Placer
Sacramento Valley: along CA-193, 0.1 mile west of its junction with Sierra College Blvd. Wide flat between highway and oaks.
88
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
UCR122196
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7519
Madera
Western Sierra Nevada Foothills, along Belleview Rd (Rd 208) 1.2 mi west of Bear Lake Rd (Rd 211), west of Indian Springs
213
Comment
UCR161688
Plagiobothrys nothofulvus
George K. Helmkamp, E. A. Helmkamp
2005-2-24
8967
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
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
UCR198488
Plagiobothrys stipitatus var. micranthus
George K. Helmkamp, E. A. Helmkamp
2008-5-4
13378
Amador
Sierra Nevada Mountains, Barton, c. 15 miles (air) NE of Jackson, at the junction of Tiger Creek Road and Black Prince Road, 0.6 mil east of the junction of Tiger Creek Road with CA-88
936
Comment
UCR173594
Plagiobothrys undulatus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-1
10290
El Dorado
Northern Sierra Nevada foothills, corner of Pleasant Valley Road and Patterson Drive; west end of Diamond Springs
537
Comment
UCR158373
Plantago coronopus
George K. Helmkamp, E. A. Helmkamp
2004-6-24
8703
Santa Barbara
Central Coast, Ocean Park at Surf, NW of Lompoc
6
Comment
UCR158390
Plantago coronopus
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8681
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Sudden Rd west of Sudden Peak and 1.2 mi SW of Miquelito Rd (SW of Lompoc)
412
Comment
UCR189649
Plantago erecta
George K. Helmkamp, E. A. Helmkamp
2007-3-17
11656
Calaveras
Eastern Sacramento Valley, about 1 mile north of Burson on the road to south Comanche Reservoir
152
Comment
UCR197274
Plantago erecta
George K. Helmkamp, E. A. Helmkamp
2008-4-25
13304
El Dorado
Sierra Nevada Mountains Foothills, junction of Meadowbrook and Bear Creek Roads at Traverse Creek, south of Georgetown
674
Comment
UCR237083
Plantago erecta
George K. Helmkamp, E. A. Helmkamp
2012-4-24
18832
El Dorado
Northern Sierra Nevada Mountains Foothills, Bear Creek Road, 0.4 mile south of its junction with Meadow Brook Road, 2.5 miles NE (66 deg. ) of Garden Valley
705
Comment
UCR101664
Plantago lanceolata
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3739
San Mateo
Portola Valley, Golden Hills Rd along Los Trancos Creek
107
Comment
UCR158888
Plantago lanceolata
George K. Helmkamp, E. A. Helmkamp
2005-4-17
9375
San Luis Obispo
Central Coast, Corbett Canyon, 2.3 miles north of Calif. Hwy 227 in Arroyo Grande
81
Comment
UCR241334
Plantago lanceolata
George K. Helmkamp, E. A. Helmkamp
2012-9-20
19881
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy E-26 (Red Corral/West Point-Pioneer Rd.) just north of the bridge over the North Fork Mokelumne River
613
Comment
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
UCR102561
Plantago maritima
George K. Helmkamp, E. A. Helmkamp & A. Kerchner
1997-6-26
2143
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
SD143745
Plantago ovata
G. K. Helmkamp, E. A. Helmkamp
1998-3-18
2869
Imperial
Between Highway I-8 and the All-American Canal across from the Brock Research Center; ca. 3.0 miles east of the junction of Highway CA-98 with I-8.
46
Comment
UCR103575
Plantago ovata
George K. Helmkamp
1998-1-17
2527
Riverside
Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10
43
Comment
UCR103663
Plantago ovata
George K. Helmkamp, E. Helmkamp
1998-1-23
2561
Imperial
Sonoran (Colorado) Desert, On the W side of Hwy 86, 18.8 mi. NW of Westmorland
-30
Comment
UCR122606
Plantago ovata
George K. Helmkamp, E. A. Helmkamp
2001-3-17
6280
Imperial
Sonoran (Colorado) Desert, Ogilby Rd., 15.4 miles south of Calif. Hwy 78
168
Comment
RSA0049897
Platanthera leucostachys
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19354
El Dorado
Robbs Peak Road at the junction with Ice House Road, 22 miles north of US-50.
2078
Comment
UCR258119
Platanthera leucostachys
George K. Helmkamp, Amy Barnes
2014-8-11
23009
El Dorado
Northern Sierra Nevada Mountains, north of Union Valley Reservoir, junction of Robbs Peak Road and Ice House Road
1655
Comment
CLARK-A1045-869
Platystemon californicus
George K. Helmkamp
1978-6-1
#4
Riverside
Santa Ana Mountains Wildomar 7.5'Q
Comment
UCR91812
Platystemon californicus
George K. Helmkamp
1996-5-25
1053
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
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
UCD137561
Plectritis ciliosa
G. K. Helmkamp; E. A. Helmkamp
2007-4-5
11732
Amador
Northern Sierra Nevada Mountains: Sutter to Ione Road. 0.4 mile east of CA-49, northeast of Ione.
180
Comment
UCR184813
Plectritis ciliosa subsp. ciliosa
George K. Helmkamp, E. A. Helmkamp
2007-5-7
11969
El Dorado
Foothills, Northern Sierra Nevada Mountains, along Calif. Hwy 49, 6.1 miles northwest of Placerville
454
Comment
UCD60376
Plectritis macrocera
G. K. Helmkamp; E. A. Helmkamp
2007-5-7
11966
El Dorado
Northern Sierra Nevada Mountains: Pedro Hills Road, 0.5 mile west of its junction with CA-49, junction of roads 5.3 miles south of Cool.
311
Comment
UCR87264
Plectritis macrocera
George K. Helmkamp, E. A. Helmkamp
1993-5-4
s.n.
Modoc
35.6 miles NW of Canby along Calif. Hwy 139
1280
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
SD240812
Poa annua
George K. Helmkamp, E. A. Helmkamp
2012-4-7
18713
San Joaquin
San Joaquin Valley: along CA-26, 3.2 miles southwest of its junction with N Wimer Road, NE of town of Linden (Valley Springs SW 7.5'Q)
52
Comment
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
UCR253212
Poa annua
George K. Helmkamp, Amy Barnes
2014-4-7
22730
Sacramento
Sacramento Valley, Clay East Road, 1 mile east of its junction with CA-104
52
Comment
UCR259865
Poa annua
George K. Helmkamp, Elizabeth Helmkamp
2013-10-22
22458
Amador
Sierra Nevada Mountains Foothills, Shenandoah Road, near Sobon Creek, 6.8 miles northeast of its junction with CA-49 in Plymouth
563
Comment
UCR96394
Poa annua
George K. Helmkamp
1996-9-22
1204
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
SD236151
Poa bolanderi
G. K. Helmkamp, E. A. Helmkamp
2008-7-16
13801
Alpine
Northern Sierra Nevada Mountains: Wood Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCD90677
Poa bulbosa
G. K. Helmkamp; E. A. Helmkamp
2007-3-31
11718
Nevada
Northern Sierra Nevada Mountains. Along CA-49 at Lime Kiln Rd., 0.6 mi. north of Cherry Creek Acres.
549
Comment
UCR185218
Poa bulbosa
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11785
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
UCR190567
Poa cusickii
George K. Helmkamp
2007-6-29
12438
Amador
Northern Sierra Nevada Mountains, Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
CLARK-A1045-1109
Poa palustris
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
UCR246638
Poa pratensis
George K. Helmkamp, E. A. Helmkamp
2012-6-6
19147
Amador
Northern Sierra Nevada Mountains, Panther Creek Road, 5.8 miles south of its junction with CA-88, 6.2 mi. SW (246 deg. ) of Bear River Reservoir dam
1465
Comment
RSA0045148
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2012-7-6
19340
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
UCR235487
Poa secunda
George K. Helmkamp, E. A. Helmkamp
2012-5-5
18932
Placer
Northern Sierra Nevada Mountains Foothills, Todd Valley Road, 1.2 miles south of its junction with Foresthill Road
779
Comment
UCR116020
Poa wheeleri
George K. Helmkamp, E. A. Helmkamp
2000-7-18
5869
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
UCR219131
Polemonium californicum
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16557
Alpine
Northern Sierra Nevada Mountains, north side of Kirkwood, just north of CA-88 near the El Dorado and Amador Co. lines, west end of Caples Lake
2332
Comment
UCR257913
Polemonium californicum
George K. Helmkamp, Amy Barnes
2012-8-12
19600
Alpine
Northern Sierra Nevada Mountains, Woods Lake Road, 0.8 mile SE of its junction with CA-88 and beside Woods Creek
2286
Comment
UCR134422
Polycarpon tetraphyllum
George K. Helmkamp
2003-9-19
8143
San Luis Obispo
Central Coast, Nipomo Mesa area. Pomeroy Rd, 0.2 mi south of Los Berros Rd.
76
Comment
CDA7123
Polygonum arenastrum
G. K. Helmkamp, E. A. Helmkamp
2006-10-1
11511
Nevada
Northern Sierra Nevada Mountains Foothills; Along Highway CA-49, 10.4 miles north of the crossing of the South Yuba River.
Comment
SD236381
Polygonum aviculare
G. K. Helmkamp, E. A. Helmkamp
2008-10-6
14216
Sutter
Sacramento Valley: South Butte Road 1.2 miles northwest of junction with CA-20 west of Yuba City.
22
Comment
SEINET4560747
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2011-1
18357
Nevada
Northern Sierra Nevada Mountains: small, open flat along CA-20, 2.6 miles west of its junction with Lowell Hill Road.
1581
Comment
UCR201760
Polygonum aviculare
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14216
Sutter
Sacramento Valley, South Butte Road 1.2 miles northwest of junction with CA-20, west of Yuba City
23
Comment
RSA0062483
Polygonum davisiae
George K. Helmkamp, Belinda Pesheck
2013-7-14
21082
Alpine
Blue Lakes Road, 0.35 mile south of its junction with Tamarack/Sunset Lake Road.
2468
Comment
UCR189048
Polygonum davisiae
George K. Helmkamp
2007-7-7
12512
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road, 12.0 miles south of its junction with CA-88
2549
Comment
UCR229562
Polygonum douglasii subsp. douglasii
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18045
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 5.0 miles [northeast] of Boards Crossing of the North Fork Stanislaus River
1716
Comment
UCR234614
Polygonum douglasii subsp. douglasii
George K. Helmkamp, E. A. Helmkamp
2011-8-19
18100
Alpine
Northern Sierra Nevada Mountains, Blue Lakes Road, 6.6 miles south of its junction with CA-88
2296
Comment
UCR161967
Polygonum fagopyrum
George K. Helmkamp, E. A. Helmkamp
2005-2-9
8894
Santa Barbara
Outer South Coast Ranges, south edge of Sierra Madre Mtns north of Sisquoc; 1.6 mi north of Foxen Canyon Road along Tepusquet Road
171
Comment
UCR170473
Polygonum hydropiper
George K. Helmkamp, Elizabeth Helmkamp
2005-9-12
9865
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
UCR79507
Polygonum persicaria
George K. Helmkamp
1993-11-4
X 10
Imperial
Sonoran (Colorado) Desert, Edge of the old bed of the Colorado River, 0.25 mile north of Walter's Camp, 30 miles by road south of Blythe
91
Comment
UCR209747
Polygonum phytolaccifolium
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15440
Placer
Sierra Nevada Mountains, Forest Hill Road, 0.8 mile west of Robinson Flat, c. 27 miles NE of the city of Foresthill
2034
Comment
UCR237732
Polygonum polygaloides subsp. kelloggii
George K. Helmkamp, E. A. Helmkamp
2012-7-14
19374
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
UCR230711
Polygonum prolificum
George K. Helmkamp, E. A. Helmkamp
2011-7-19
17831
Tuolumne
Northern Sierra Nevada Mountains, Forest Route 5N14, 3.7 miles southeast of Boards Crossing bridge of North Fork Stanislaus River
1494
Comment
UCR179808
Polygonum punctatum
George K. Helmkamp, E. A. Helmkamp
2006-10-18
11531
El Dorado
Northern Sierra Nevada Mountains Foothills, Diamond Springs; village along Calif. Hwy 49 south of Placerville
540
Comment
UCR205156
Polygonum punctatum
George K. Helmkamp, E. A. Helmkamp
2008-10-30
14300
Sacramento
Southern Sacramento Valley, along CA-104, 0.6 mile west of Clay
24
Comment
UCR253088
Polygonum punctatum
George K. Helmkamp, Elizabeth Helmkamp
2013-8-11
22153
Amador
Sierra Nevada Mountains Foothills, Sutter Creek-Volcano Road, 11.3 miles northeast of the town of Sutter Creek
582
Comment
UCR260074
Polygonum punctatum
George K. Helmkamp, Elizabeth Helmkamp
2013-10-15
22425
El Dorado
Sierra Nevada Mountains Foothills, Oak Hill Road, 3.6 miles south of its junction with Pleasant Valley Road
614
Comment
UCR206693
Polypodium hesperium
George K. Helmkamp, E. A. Helmkamp
2009-3-5
14334
El Dorado
Northern Sierra Nevada Mtns. Foothills, Sand Ridge Road 4.3 miles east of its junction with CA-49
494
Comment
UCR230726
Polystichum imbricans
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17549
Sierra
Northern Sierra Nevada Mountains Foothills, 7.1 miles north of Camptonville along CA-49, about 2.5 miles north of the Yuba Co. line
808
Comment
SEINET1908707
Polystichum imbricans subsp. curtum
G. K. Helmkamp, E. A. Helmkamp
2008-1
13571
El Dorado
Sierra Nevada Mountains: Forbay Road, 7.1 miles northwest of CA-50 (road junction in Pollock Pines), no-outlet road leading to the South Fork of the American River (Pollock Pines 7.5' Q).
716
Comment
UCR190702
Polystichum imbricans subsp. imbricans
George K. Helmkamp, E. A. Helmkamp
2007-9-14
12966
Placer
Northern Sierra Nevada Mountains Foothills, along Mosquito Ridge Road 15 miles east of Foresthill
832
Comment
UCR191116
Polystichum imbricans subsp. imbricans
George K. Helmkamp, E. A. Helmkamp
2007-8-29
12823
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
UCR206865
Polystichum scopulinum
George K. Helmkamp, E. A. Helmkamp
2009-6-25
15047
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road at South Fork American River, 7.6 miles north of junction with Pony Express Trail in Pollock Pines
579
Comment
HSC78516
Porophyllum gracile
G. K. Helmkamp
1983-3-24
3835
Riverside
Chuckwalla Valley, at junction of the Graham Pass & Chuckwalla Springs Rd.
229
Comment
UCR96380
Potamogeton pectinatus
George K. Helmkamp
1996-9-28
1242
Mono
Eastern Sierra Nevada Mtns., Hot Creek at Owens River Road
2134
Comment
UCR257674
Potentilla drummondii subsp. breweri
George K. Helmkamp, Elizabeth Helmkamp
2012-8-24
19691
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
UCR190707
Potentilla drummondii subsp. bruceae
George K. Helmkamp
2007-6-29
12434
Amador
Northern Sierra Nevada Mountains, Kirkwood Meadows about one mile west of Kirkwood and 0.1 mile south of CA-88
2317
Comment
RSA739788
Potentilla glandulosa subsp. ashlandica
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12287
El Dorado
Bonetti Road, 2.0 miles south of Mormon Emigrant Trail.
1189
Comment
UCR190661
Potentilla glandulosa subsp. glandulosa
George K. Helmkamp, E. A. Helmkamp
2007-5-23
12072
Placer
Northern Sierra Nevada Mountains, Sugar Pine road, 0.2 mile northwest of Forest Hill Road
1360
Comment
SEINET11262391
Potentilla glandulosa subsp. reflexa
George Helmkamp, Ann Kerchner; Amy Barnes
2011-8-13
18042
Tuolumne
Northern Sierra Nevada Mountains. Forest Route 5N14. 5 miles N of Boards Crossing of the North Fork Stanislaus River. (Boards Crossing 7.5' Q.); 0
1716
Comment
CLARK-A1045-581
Potentilla gracilis subsp. nuttallii
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains Keller Peak 7.5'Q
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
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
UCR235131
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
UCR89419
Potentilla gracilis var. fastigiata
George K. Helmkamp
1994-7-28
103- 6
Mono
Eastern Sierra Nevada Mtns., Long Valley, Crowley Lake Road at Whiskey Creek, 3 miles east of Tom's Place
2119
Comment
SBBG123118
Poteridium annuum
G. K. Helmkamp with E. A. Helmkamp
2007-9-14
12959
Placer
Mosquito Ridge Rd 0.4 mi E of Foresthill
942
Comment Read comments Mar 30 2014
UCR106454
Prunella vulgaris var. lanceolata
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2154
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
UCR122359
Prunella vulgaris var. lanceolata
George K. Helmkamp, E. A. Helmkamp
2001-7-8
6981
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
SD197904
Prunus
G. K. Helmkamp, E. A. Helmkamp
2008-5-4
13382
Amador
15 miles northeast of Jackson, at the junction of Tiger Creek Road and Black Prince Road, 0.6 mile east of the junction of Tiger Creek Road with CA-88.
936
Comment
SEINET2442022
Prunus emarginata
George K. Helmkamp, E. A. Helmkamp
2009-8-12
15433
Placer
Sierra Nevada Mountains: Forest Hill Road, 0.8 mile west of Robinson Flat, c.27 miles NE of the city of Foresthill (Duncan Peak 7.5' Q).; 0
2033
Comment
SEINET7356567
Prunus emarginata
George K. Helmkamp, Elizabeth Helmkamp
2006-5-24
10545
El Dorado
Northern Sierra Nevada Mountains: El Dorado National Forest; S of Union Valley Reservoir, ca. 2 (air mi. N of US Hwy 50); junction of Ice House Canyon Road and Granite Springs Road (Riverton 7.5' Q.: Near 381/447'56'N, 1201/423'49'W).; 0
1610
Comment
UCD113213
Prunus emarginata
G. K. Helmkamp; E. A. Helmkamp
2007-5-23
12063
Placer
Northern Sierra Nevada Mountains; Humbug Canyon Road, 0.2 mile northwest of Forest Hill Road, generally southwest of Westville.
1576
Comment
UCR217265
Prunus emarginata
George K. Helmkamp, Mary Jane Ganive, Mary Alice Barnes
2010-6-15
16300
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 14 miles southeast of junction with Sly Park Road at Jenkinson Lake
1662
Comment
UCR256823
Prunus emarginata
George K. Helmkamp, Amy Barnes
2014-5-14
22870
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 11.9 miles east of its junction with Sly Park Road, 6.8 air mi. SW (225 deg. ) of Kyburz
1808
Comment
UCR37671
Prunus fasciculata
George K. Helmkamp
1984-4-20
840420- 46
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
UCR189618
Prunus persica
George K. Helmkamp, E. A. Helmkamp
2007-3-11
11612
El Dorado
Northern Sierra Nevada Mountains Foothills, Marshall Road at the north end of Garden Valley
611
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
CLARK-A1045-184
Psilocarphus brevissimus
George K. Helmkamp
1979-5-5
Riverside
Santa Ana Mountains vernal pool; Wildomar 7.5'Q
Comment
UCR206332
Psilocarphus tenellus
George K. Helmkamp, E. A. Helmkamp
2009-5-24
14783
El Dorado
Sierra Nevada Mountains Foothills, Sand Ridge Road, 3.3 miles eat of the Cosumnes River and CA-49
521
Comment
RSA628612
Psorothamnus fremontii
George K. Helmkamp, E. A. Helmkamp
1998-5-3
3504
San Bernardino
Mesquite Mtns, 3 mi. W of the Nevada border at Sandy Valley.
1067
Comment
SD227821
Psorothamnus fremontii var. fremontii
G. K. Helmkamp, E. A. Helmkamp
1998-5-3
3504
San Bernardino
Eastern Mojave Desert: Mesquite Mtns., 3.0 mi. W of the Nevada border at Sandy Valley
1067
Comment
UCR206953
Pteridium aquilinum var. pubescens
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14825
Yuba
Sierra Nevada Mountains Foothills, along CA-49, 0.5 mile north of the Camptonville exit
805
Comment
UCR231876
Pteridium aquilinum var. pubescens
George K. Helmkamp, E. A. Helmkamp
2010-10-16
17019
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
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
RSA518918
Pteryxia terebinthina
George K. Helmkamp
1990-8-2
s.n.
Mono
Between Mammoth and Lake Mary.
2591
Comment
UCR121937
Ptilagrostis kingii
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5925
Inyo
Sierra Nevada Mountains, Mosquito Flat, 0.9 mi south of Rock Creek Lake, beside Rock Creek
3140
Comment
UCR93199
Purshia glandulosa
George K. Helmkamp
1993-4-24
s.n.
San Bernardino
Northeastern Mojave Desert, along Smith Talc Road, c. 9 miles east of Tecopa [Pass?, Inyo Co.; probably after Sm. T. Rd. transition to Excelsior Mine Rd.]
1067
Comment
UCR197031
Purshia tridentata var. tridentata
George K. Helmkamp, E. A. Helmkamp
2008-7-22
13977
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
UCR222561
Pyracantha fortuneana
George K. Helmkamp, E. A. Helmkamp
2010-6-5
16254
Sonoma
North Coast Ranges, junction of Martinelli Road and River Road, 4.65 air mi. due east of Guerneville
9
Comment
UCR134461
Pyrrocoma apargioides
George K. Helmkamp, E. A. Helmkamp
1998-8-11
4339
Mono
White Mountains, Campito Meadow, west of White Mountain Road at Poison Creek
3293
Comment
UCR95896
Pyrrocoma lanceolata
George K. Helmkamp
1996-9-29
1252
Mono
Spring [Layton Springs] on the east side of Lake Crowley 3.5 miles SSE of Benton Crossing
2073
Comment
SD185231
Quercus cornelius-mulleri
G. K. Helmkamp
1993-9-18
29 10
San Bernardino
Morongo Valley, canyon at west end of Palo Verde Road, 1.0 mile west of Juniper Ave.
1070
Comment
UCR194978
Quercus douglasii
George K. Helmkamp, E. A. Helmkamp
2007-10-13
13101
Amador
Northern Sierra Nevada Mountains Foothills, along Hwy CA-49, 0.6 mile south of Plymouth
314
Comment
RSA787262
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
UCR223854
Quercus kelloggii
George K. Helmkamp, E. A. Helmkamp
2009-9-15
15628
El Dorado
Sierra Nevada Mountains Foothills, Omo Ranch Road, 3.9 miles west of Omo Ranch/junction with Slug Gulch Road [problem]
1043
Comment
UCD61308
Quercus wislizeni var. wislizeni
G. K. Helmkamp; E. A. Helmkamp
2007-9-19
12980
El Dorado
Northern Sierra Nevada Mountains: along Greenstone Road just south of its junction with US-50 (east of Shingle Springs).
427
Comment
RSA0019380
Ranunculus bonariensis var. trisepalus
George K. Helmkamp, E. A. Helmkamp
2011-5-6
17205
Yuba
junction of Camp Far West Road and Spenceville Road, 5.4 mi. NE (47 ) of Wheatland.
56
Comment
SEINET3282817
Ranunculus californicus
George K. Helmkamp, E. A. Helmkamp
2007-4-27
11864
El Dorado
Foothills, Northern Sierra Nevada Mountains; junction of Ice House Road and White Meadows Road, about 2 miles northwest of US-50.
1029
Comment
UCD95952
Ranunculus californicus
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-11
10379
Nevada
Northern Sierra Nevada Mountains. Cedarsong Road, 0.1 mile NE of CA-Hwy 49 (NW of Nevada City).
637
Comment
UCR106671
Ranunculus californicus
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3765
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
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
UCR173302
Ranunculus californicus
George K. Helmkamp, Elizabeth Helmkamp
2006-5-18
10474
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
UCR173473
Ranunculus californicus
George K. Helmkamp, Elizabeth Helmkamp
2006-4-6
10151
El Dorado
Northern Sierra Nevada Foothills, ENE of Sacramento; 4.2 mi NW of Coloma along Calif. Hwy 49
247
Comment
UCR231887
Ranunculus californicus
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17148
Placer
Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road
98
Comment
UCR122394
Ranunculus californicus var. californicus
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7494
Madera
Western Sierra Nevada foothills, Bass Lake Road, 1 mile southeast of the junction with CA Hwy 41, north of Oakhurst
915
Comment
CLARK-A1045-378
Ranunculus canus var. ludovicianus
George K. Helmkamp
1979-6-5
San Bernardino
San Bernardino Mountains just west of Stanfield cut-off, sagebrush flat, south side of lake; ; Big Bear Lake 7.5'Q
2133
Comment
CAS-BOT-BC434232
Ranunculus muricatus
G. K. Helmkamp; E. A. Helmkamp
2008-4-25
13321
El Dorado
Sierra Nevada Mountains Foothills: junction of Meadowbrook and Bear Creek Roads at Traverse Creek, south of Georgetown.
674
Comment
CDA36373
Ranunculus muricatus
G. K. Helmkamp, E. A. Helmkamp
2009-5-4
14589
El Dorado
Sierra Nevada Mountains Foothills; Junction of Bonetti Road and Mormon Emigrant Trail, 3.6 miles east of Sly Park Rd. and Jenkinson Lake.
Comment
UCR208576
Ranunculus muricatus
George K. Helmkamp, E. A. Helmkamp
2009-5-4
14601
El Dorado
Sierra Nevada Mountains Foothills, Sly Park Road, 0.3 miles southwest of its junction with Mormon Emigrant Trail
1067
Comment
UCR208582
Ranunculus muricatus
George K. Helmkamp, E. A. Helmkamp
2009-5-4
14589
El Dorado
Sierra Nevada Mountains Foothills, junction of Bonetti Road and Mormon Emigrant Trail, 3.6 miles east of Sly Park Rd. and Jenkinson Lake
1226
Comment
UCR185230
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2007-4-23
11790
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
UCR206052
Ranunculus occidentalis
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14981
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
UCR254597
Ranunculus occidentalis
George K. Helmkamp
2014-3-11
22548
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
SD236247
Raphanus raphanistrum
G. 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 (Olivehurst 7.5'Q)
20
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
UCR257017
Raphanus raphanistrum
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20568
Amador
Sierra Nevada Mountains Foothills, along E-16/Shenandoah Rd., 3.6 road miles south of River Pines, 4.15 air miles NE (39 deg. ) of Plymouth
517
Comment
UCR171547
Raphanus sativus
George K. Helmkamp, E. A. Helmkamp
2006-3-19
10092
Amador
Northern Sierra Nevada Foothills, Along Calif. Highway 49 just south of Plymouth
323
Comment
UCR249547
Raphanus sativus
George K. Helmkamp
2013-3-1
20144
Sutter
Sacramento Valley, Sacramento River levee along Cranmore Road, 0.7 mile south of Seymour Road via an unnamed road, 2 miles due west of Robbins
7
Comment
UCR272997
Raphanus sativus
George K. Helmkamp
2014-3-14
22564 A
Amador
Eastern Sacramento Valley/Sierra Nevada Foothills, along Hwy E-16, 0.6 mile southwest of the junction with CA-49, c. 2.5 mi southwest of Plymouth
250
Comment
UCR177010
Rhamnus californica
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9750
El Dorado
Northern Sierra Nevada Foothills, 20 mi WSW of Lake Tahoe; Ice House Road, N of Calif. Highway 50 and 1.5 mi south of junction with Ice House Reservoir
1637
Comment
UCR200856
Rhamnus tomentella subsp. tomentella
George K. Helmkamp, E. A. Helmkamp
2008-9-15
14099
Placer
Foothills, northern Sierra Nevada Mountains, along Mosquito Ridge Road, 3.1 miles southeast of Forest Hill
773
Comment
UCR121446
Ribes cereum var. cereum
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5084
Nevada
Northern Sierra Nevada Range, Tahoe Nat. Forest, Donner Pass Rd. (=Hwy 40), 2.2 mi. west of Lake Donner.
1997
Comment
UCR200910
Ribes cereum var. cereum
George K. Helmkamp, E. A. Helmkamp
2008-8-30
14050
El Dorado
Northern Sierra Nevada Mountains, Leek Spring Valley, Foster Meadow Road 0.9 miles southwest of its junction with Mormon Emigrant Trail
2241
Comment
UCR103810
Ribes malvaceum
George K. Helmkamp
1997-3-8
1457
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
SD247441
Ribes nevadense
George Helmkamp, E. A. Helmkamp
2012-9-25
19902
Placer
Northern Sierra Nevada Mountains: Blue Canyon Road, 1.1 miles south of its intersection with I-80, c. 1/2 mile south of Blue Canyon-Nyack Airport (Blue Canyon 7.5'Q)
1473
Comment
UCR157813
Ribes nevadense
George K. Helmkamp, E. A. Helmkamp
1998-6-29
4188
Kern
Tehachapi Mountains, Tehachapi Mountain Park, 4.2 miles SW of Highline Road along Water Canyon Road
1768
Comment
VVC472
Ribes nevadense
G. K. Helmkamp
1996-6-11
1126
San Bernardino
San Bernardino Mtns., 1.2 mi. SW of Tulip Ave, City of Big Bear Lake
2143
Comment
RSA0024722
Ribes roezlii var. roezlii
George K. Helmkamp, William Barnes
2010-9-4
16930
El Dorado
Tragedy Spring Road, 0.1 mile southwest of its upper junction with CA-88
2412
Comment
SD239667
Rorippa
George K. Helmkamp, E. A. Helmkamp
2012-7-2
19317
Amador
Northern Sierra Nevada Mountains Foothills: Bear Ri ver Road, 0.3 miles east of the Lower Bear River Reservoir dam (Bear River Reservoir 7.5'Q)
1816
Comment
SEINET11266299
Rorippa curvisiliqua
George Helmkamp, E. A. Helmkamp
2010-8-3
16696
Calaveras
Northern Sierra Nevada Mountains: along CA-4, 0.8 mile southwest of the junction with Forest Route 7N23/ Black Creek Rd., NE of Dorrington (Boards Crossing 7.5' Q.); 0
1854
Comment
UCD115279
Rorippa curvisiliqua
G. K. Helmkamp; E. A. Helmkamp
2006-8-3
11127
Alpine
Northern Sierra Nevada Mountains; Wood's Lake Road, 0.3 mile north of the parking area for Wood's Lake. At juncture of meadows, Wood's Creek, and coniferous forest.
2509
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
UCR146646
Rosa californica
George K. Helmkamp, E. A. Helmkamp
2004-10-1
8832
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
CDA25210
Rosa gymnocarpa
G. K. Helmkamp, E. A. Helmkamp
2007-10-28
13115
Sutter
Sacramento Valley; Along Nicolaus Road, 0.1 mile west of the Placer County line.
Comment
UCR134474
Rosa woodsii var. ultramontana
George K. Helmkamp, E. A. Helmkamp
1998-8-10
4259
Inyo
Eastern Sierra Nevada Mountains, along Big Pine Creek 12 mi west of Big Pine along Glacier Lodge Rd.
2317
Comment
UCR206760
Rubus discolor
George K. Helmkamp, E. A. Helmkamp
2009-6-25
15050
El Dorado
Sierra Nevada Mountains Foothills, Forbay Road at South Fork American River, 7.6 miles north of junction with Pony Express Trail in Pollock Pines
579
Comment
UCD113781
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
UCR14392
Rubus ulmifolius var. inermis
George K. Helmkamp
1974-6-24
s.n.
San Diego
Roadside, US Hwy 395 at Interstate 8
Comment
RSA756086
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14843
Sierra
along CA-49, 1.6 miles north of the Yuba County line
902
Comment
SD237574
Rumex acetosella
G. K. Helmkamp, E. A. Helmkamp
2009-6-10
14943
Shasta
Southern Cascade Range: Alvord Road, p.2 mile south of ites junction with CA-44, junction is 1.1 miles east of Shingletown (Shingletown 7.5'Q)
938
Comment
UCD101025
Rumex acetosella
G. K. Helmkamp; E. A. Helmkamp
2006-7-12
10966
El Dorado
Northern Sierra Nevada Mtns: Sierra-at-Tahoe road (west end of Phillips), 1.5 miles south of Hwy US-50.
2104
Comment
UCD101029
Rumex acetosella
G. K. Helmkamp; E. A. Helmkamp
2007-4-27
11871
El Dorado
Northern Sierra Nevada Mountains. Junction of Ice House Road and White Meadows Road. About 2 miles northwest of US-50.
1029
Comment
UCD101030
Rumex acetosella
G. K. Helmkamp; E. A. Helmkamp
2007-5-9
11981
El Dorado
Northern Sierra Nevada Mountains. White Meadow Road, 0.6 mile west of its junction with Ice House Road, c. 0.75 mi. NNW of Riverton.
1082
Comment
UCR101671
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2205
Mendocino
North Coast, two miles north of Westport between US-1 and the coast
30
Comment
UCR115783
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2000-4-19
5380
San Luis Obispo
Central Coast, Irish Hills (SSW of San Luis Obispo). See Cyn., 3 mi south of Los Osos Valley Rd, up Prefumo Cyn. to crest, and down See Cyn. to the site
213
Comment
UCR122836
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3876
San Luis Obispo
Outer South Coast Range; Santa Lucia Range, southwest of Paso Robles along CA Hwy 46 at York Mountain Road
366
Comment
UCR123999
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2001-7-6
6857
Plumas
Sierra Nevada Mountains, Calif. Hwy 89, ESE of Lake Almanor at Crescent Mills
976
Comment
UCR158614
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8667
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCR173534
Rumex acetosella
George K. Helmkamp, Elizabeth Helmkamp
2006-5-11
10403
Nevada
Northern Sierra Nevada Foothills, San Juan Ridge area at North Columbia, c. 9.3 mi. east of Calif. Hwy 49
884
Comment
UCR173960
Rumex acetosella
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-19
10730
El Dorado
Northern Sierra Nevada Mountains, 0.8 mile east of Ice House Road on the road to Wright's Lake
1672
Comment
UCR242642
Rumex acetosella
George K. Helmkamp, E. A. Helmkamp
2011-6-17
17559
Calaveras
Northern Sierra Nevada Mountains Foothills, Winton Road, 3.7 miles northeast of CA-26 at West Point
1012
Comment
UCR257627
Rumex acetosella
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19524
Placer
Northern Sierra Nevada Mountains, Sugar Bowl Road, 0.4 mile south of its junction with Donner Pass Road, just west of Lake Mary
2136
Comment
SEINET4560905
Rumex conglomeratus
George K. Helmkamp, E. A. Helmkamp
2011-1
17454
Nevada
Northern Sierra Nevada Mountains Foothill: 3.25 miles SW (216 degrees) of French Corral, along Pleasant Valley Road, 3.3 miles south of its crossing of the South Fork Yuba River.
338
Comment
UCR140142
Rumex conglomeratus
George K. Helmkamp
2004-2-6
8242
San Luis Obispo
Central Coast, entrance to Oso Flaco Lake, SW of Nipomo
6
Comment
UCR250088
Rumex crispus
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20208
Calaveras
Eastern San Joaquin Valley, Milton, Jenny Lind Road (Milton Rd.), 7.4 miles south of its junction with CA-26
120
Comment
UCR104881
Rumex obtusifolius
George K. Helmkamp, E. Helmkamp
1998-2-10
2687
Imperial
Sonoran (Colorado) Desert, SE Salton Sea, vicinity of Wister, drainage ditch at the jct of Pound & Davis Streets.
-66
Comment
UCR173779
Rumex occidentalis
George K. Helmkamp, Elizabeth Helmkamp
2006-5-20
10502
El Dorado
Northern Sierra Nevada Foothills, Along Calif. Hwy 193, 0.8 mi. N of Kelsey
595
Comment
UCR95918
Rumex salicifolius var. crassus
George K. Helmkamp
1996-9-22
1200
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
UCR176041
Rumex salicifolius var. denticulatus
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11003
El Dorado
Northern Sierra Nevada Mtns, Echo Summit along Hwy US-50; at entrance to the road maintenance station
2245
Comment
UCD138033
Sagittaria latifolia
G. K. Helmkamp; E. A. Helmkamp
2006-10-18
11533
El Dorado
Northern Sierra Nevada Mountains Foothills: Diamond Springs; village along Hwy. CA-49 south of Placerville.
540
Comment
HSC79025
Salazaria mexicana
G. K. Helmkamp
1984-4-20
16
San Bernardino
TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road in upper part of TNC area
765
Comment
UCR116699
Salix exigua
George K. Helmkamp
1974-7-9
s.n.
San Bernardino
San Bernardino Mtns., Mill Creek Canyon, Thurman Flats Picnic Area, on Hwy 38 c. 3.5 mi. east of Mill Creek Ranger Station.
1037
Comment
UCD111122
Salix laevigata
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-6
10307
Amador
Northern Sierra Nevada foothills: middle of the city Jackson, 0.1 mile north of the junction of CA-49 and CA-88.
378
Comment
UCR97564
Salix laevigata
George K. Helmkamp, E. A. Helmkamp
1997-3-8
1437
San Luis Obispo
NE of Los Osos. 4.5 mi. north of Los Osos Valley Rd on Turri Rd.
30
Comment
UCR250085
Salix lasiolepis
George K. Helmkamp
2013-3-9
20160
Sutter
Northern Sacramento Valley, North Butte Road, 0.4 mile west of its junction with West Butte Road, NW foot of Sutter Buttes
24
Comment
UCR202654
Salix lucida subsp. caudata
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13991
Alpine
Northern Sierra Nevada Mountains, along CA-89, 1.4 miles east of Luther Pass
2262
Comment
UCR121943
Salix planifolia subsp. planifolia
George K. Helmkamp, E. A. Helmkamp
2000-7-19
5919
Inyo
Sierra Nevada Mountains, Mosquito Flat, 0.9 mi south of Rock Creek Lake, beside Rock Creek
3140
Comment
UCR123403
Salix planifolia subsp. planifolia
George K. Helmkamp, E. A. Helmkamp
1998-8-12
4377
Inyo
Eastern Sierra Nevada Mountains, Rock Creek Valley, 1.0 mi south of Rock Creek Lake
3110
Comment
UCR171026
Salix scouleriana
George K. Helmkamp, E. A. Helmkamp
2006-2-9
10060
Placer
Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln
183
Comment
HSC79245
Salsola australis
G. K. Helmkamp
1983-10-8
- 23
Riverside
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
UCR219189
Salsola tragus
George K. Helmkamp, E. A. Helmkamp
2009-9-22
15641
Amador
Sierra Nevada Mountains Foothills, junction of Shenandoah Road (CA-16) and Steiner Road, southwest of River Pines
750
Comment
RSA518915
Salvia aethiopis
George K. Helmkamp
1990-9-23
H- 5
Modoc
[No location information provided on label.]
1341
Comment
UCR122265
Salvia mellifera
George K. Helmkamp, E. A. Helmkamp
2002-4-15
7365
Santa Barbara
Western Transverse Range, Sierra Madre Mountains, Miranda Pine Road, 1.0 mi southeast of CA Hwy 166
549
Comment
SD244179
Salvia sonomensis
George K. Helmkamp, E. A. Helmkamp
2010-5-17
16059
El Dorado
Northern Sierra Nevada Mountain Foothills: Pine Hill Road, 0.8 mile above the junction with Bertana Court; edge of Pine Hill Ecological Reerve (Shingle Springs 7.5'Q)
609
Comment
UCR206932
Salvia sonomensis
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14925
Shasta
Southern Cascade Range, KOA campground on the south side of CA-44, 4.0 miles east of Shingletown
1098
Comment
UCR222547
Salvia sonomensis
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15892
El Dorado
Sierra Nevada Mountains Foothills, Rattlesnake Bar Road, 8.0 miles southwest of its junction with CA-49 near Pilot Hill
322
Comment Read comments Apr 23 2012
UCR103806
Salvia spathacea
George K. Helmkamp
1997-3-8
1449
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
UCR27484
Sambucus mexicana
George K. Helmkamp
1982-9-17
s.n.
Kern
5.5 mi above snow gate on road to Mt. Pinos
2287
Comment
SD237279
Sambucus nigra subsp. caerulea
G. K. Helmkamp, E. A. Helmkamp
2010-5-4
15961
Solano
Saccramento Valley: NW edge of Vacaville, Vaca Valley Road, 0.1 mile west of its junction with Orchard Valley Road.
74
Comment
IRVC28133
Sambucus racemosa var. racemosa
G. K. Helmkamp, E. A. Helmkamp
2001-6-2
6783
San Mateo
Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1. Central CA coast
244
Comment
UCR197326
Sanguisorba annua
George K. Helmkamp, E. A. Helmkamp
2008-7-11
13788
Amador
Northern Sierra Nevada Mountains, south side of CA-88, 0.2 mile west of Carson Spur Summit
2421
Comment
SD243200
Sanguisorba officinalis
George K. Helmkamp, E. A. Helmkamp
2010-7-28
16640
Placer
Northern Sierra Nevada Mountains: Forest Route 13 (American Hill Road), 1.8 miles south of the junction with Forest Hill Road.
1566
Comment
UCR123339
Sanicula
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6894
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
UCR134391
Sanicula arguta
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6584
San Luis Obispo
Irish Hills, Clark Valley Rd., 4.2 miles south of Los Osos Valley Rd, E of Los Osos
274
Comment
UCR195168
Sanicula bipinnatifida
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12095
Nevada
Northern Sierra Nevada Mountains Foothills, along CA-49, 5.6 miles north of Nevada City
518
Comment
RSA0042071
Sanicula crassicaulis
George K. Helmkamp, Elizabeth A. Helmkamp
2013-5-24
20671
Calaveras
Whiskey Slide Road, 2.6 miles south of its junction with Jesus Maria Road, 7.9 mi. SE (118 ) of Mokelumne Hill
561
Comment
RSA667078
Sanicula crassicaulis
George K. Helmkamp, E. Helmkamp
2001-6-2
6784
San Mateo
Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1
244
Comment
UCR140775
Sanicula crassicaulis
George K. Helmkamp
2004-4-14
8453
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR250900
Sanicula crassicaulis
George K. Helmkamp, Elizabeth Helmkamp
2013-5-24
20671
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
SD236166
Sanicula graveolens
G. K. Helmkamp, E. A. Helmkamp
2008-7-16
13798
Alpine
Northern Sierra Nevada Mountains: Woods Lake Road, 0.1 mile south of its junction with CA-88
2457
Comment
UCR107332
Sanicula laciniata
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3726
Santa Clara
San Francisco Bay Region, Sierra Azul hills along Hicks Rd at the S end of San Jose; beside Guadalupe Reservoir
201
Comment
UCR217268
Sanicula tuberosa
George K. Helmkamp, Mary Jane Ganive, Mary Alice Barnes
2010-6-15
16301
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 14 miles southeast of junction with Sly Park Road at Jenkinson Lake
1662
Comment
UCR196796
Sarcodes sanguinea
George K. Helmkamp
2008-6-17
13687
Amador
Northern Sierra Nevada Mountains, Bear River Reservoir Road on the branch leading to Cole Creek, 2.7 miles east of Bear River Reservoir dam
1814
Comment
UCR130616
Satureja douglasii
George K. Helmkamp, E. A. Helmkamp
1999-5-21
4857
Monterey
Santa Lucia Mountains, Willow Creek Rd 1.7 mi east of Calif. Hwy 1 north of Gorda
290
Comment
SEINET11262704
Saxifraga californica
George K. Helmkamp, E. A. Helmkamp
2012-4-27
18860
El Dorado
Northern Sierra Nevada Mountains Foothills: Mosquito Road north of Placerville, at south side of the crossing of the South Fork American River (Slate Moutain 7.5' Q.).; 0
401
Comment
UCR218137
Saxifraga californica
George K. Helmkamp, Amy Barnes
2010-5-7
15997
Calaveras
Sierra Nevada Mountains Foothills, Mountain Ranch Road, 3.2 miles east of San Andreas
436
Comment
UCD137512
Scabiosa atropurpurea
G. K. Helmkamp; E. A. Helmkamp
2007-7-23
12574
El Dorado
Northern Sierra Nevada Mountains: Along Hwy CA-193, 1.0 mile south of Geogetown.
771
Comment
SD240827
Scandix pecten-veneris
George K. Helmkamp, E. A. Helmkamp
2012-3-31
18664
Placer
Northern Sierra Nevada Mountains Foothills: Old Foresthill Road, 0.7 mile northeast of its junction with CA-49 and the American River Crossing (Auburn 7.5'Q)
257
Comment
UCR173166
Scandix pecten-veneris
George K. Helmkamp, Elizabeth Helmkamp
2006-4-25
10219
El Dorado
Northern Sierra Nevada Foothills, E of Sacramento and just SW of Placerville. Forni road between US Hwy 50 and Diamond Springs, at Weber Creek
488
Comment
UCR206666
Scandix pecten-veneris
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14390
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 4.3 miles south of the junction with CA-20
261
Comment
UCR217929
Scandix pecten-veneris
George K. Helmkamp, Laurel Bezdecheck
2010-5-29
16148
El Dorado
Sierra Nevada Mountains Foothills, along Perry Creek, about 0.2 mile south of Slug Gulch Road, at a point 4.7 miles east of junction with Perry Creek Road
1027
Comment
UCR231882
Scandix pecten-veneris
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17138
Placer
Sacramento Valley, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road
98
Comment
UCR103362
Schismus arabicus
George K. Helmkamp, E. Helmkamp
1998-1-24
2600
Imperial
Sonoran (Colorado) Desert, 4.2 mi. north of Winterhaven on Picacho Rd, where the road crosses the canal.
91
Comment
UCR95926
Schoenoplectus californicus
George K. Helmkamp
1996-9-22
1203
San Luis Obispo
Central Coast, along San Simeon Creek, c. 0.2 mile east of CA Hwy 1
6
Comment
UCR132031
Schoenoplectus pungens var. badius
George K. Helmkamp
2003-9-8
8132
San Luis Obispo
Central Coast, Saltwater ocean inlet 0.2 mile SW of Oceano Airport
6
Comment
UCR85436
Schoenoplectus pungens var. longispicatus
George K. Helmkamp
1994-4-30
90- 3
San Bernardino
Mojave Desert, Afton Canyon. Bottom of the wash leading W from the public camp along the Mojave River
457
Comment
UCD141251
Scirpus microcarpus
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11007
El Dorado
Northern Sierra Nevada Mountains: Echo Summit along Hwy US-50; at entrance to the road maintenance station.
2245
Comment
UCR206943
Scirpus microcarpus
George K. Helmkamp, E. A. Helmkamp
2009-6-11
14962
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
UCR258988
Scirpus microcarpus
George K. Helmkamp, Amy Barnes
2014-9-16
23074
Alpine
Eastern Sierra Nevada Mountains, Paynesville, junction of Chambers Lane and Diamond Valley Road along West Fork Carson River
1593
Comment
UCR207132
Scleranthus annuus
George K. Helmkamp, E. A. Helmkamp
2009-4-4
14492
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
SD257238
Scleranthus annuus subsp. annuus
George K. Helmkamp, Elizabeth Helmkamp
2013-5-2
20451
El Dorado
Sierra Nevada Mountains Foothills: Happy Valley Road, 0.6 mile east of its junction with Mt. Aukum Road, 1.65 air miles NE of Somerset.
665
Comment
RSA755623
Scutellaria californica
George K. Helmkamp, E. A. Helmkamp
2009-5-28
14866
Sierra
above the Yuba River along CA-49, 2.3 miles north of the Yuba Co. line
851
Comment
UCR194913
Scutellaria californica
George K. Helmkamp, E. A. Helmkamp
2007-5-27
12152
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-A1045-583
Senecio douglasii
George K. Helmkamp
1977-5-17
San Bernardino
Mojave Desert southeast edge of mountians, near Kelbaker Road; ; Flynn 15'Q
1097
Comment
UCR146845
Senecio flaccidus var. douglasii
George K. Helmkamp, E. A. Helmkamp
2004-9-23
8805
Santa Barbara
San Rafael Mountains., Figueroa Mountain Road, 8.5 mi NE of Los Olivos
587
Comment
UCR219040
Senecio integerrimus var. major
George K. Helmkamp, E. A. Helmkamp
2010-7-13
16517
Amador
Northern Sierra Nevada Mountains, between the west shore of Silver Lake and CA-88; lakeside rest stop area
2235
Comment
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
RSA757542
Senecio triangularis
George K. Helmkamp, Amy Barnes
2009-7-8
15163
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
SEINET3245751
Senecio triangularis
G. K. Helmkamp, E. A. Helmkamp
2007-1
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
SEINET3258007
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2008-3-12
13152
Amador
Sierra Nevada Mountains Foothills; Middle Bar Road, 3.2 miles south of its junction with CA-49 at Scottsville.
229
Comment
SEINET3411982
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2012-2-17
18549
Sacramento
Sacramento Valley: along Scott Road, 2.67 miles S of its junction with White Rock Road, south of Folsom Lake and Hwy 50
76
Comment
UCR102517
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
1997-3-6
1366
Kern
Tehachapi Mtns./San Joaquin Valley, [Edmonston] Pumping plant road c. 5 mi. east of Grapevine near Pastoria Creek
399
Comment
UCR238901
Senecio vulgaris
George K. Helmkamp, E. A. Helmkamp
2012-2-3
18521
Stanislaus
San Joaquin Valley, junction of Sonora Road and Milton Road, 17 km NE (50 deg. ) of Escalon
58
Comment
UCR253475
Senecio vulgaris
George K. Helmkamp
2014-3-11
22538
Nevada
Sierra Nevada Mountains Foothills, Auburn, southbound on CA-49 about 0.1 mile east of Lincoln Way
402
Comment
UCR258388
Sericocarpus oregonensis
George K. Helmkamp, Amy Barnes
2014-8-11
22987
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 1.7 miles south of Crystal Basin Information Station
1610
Comment
UCR172670B
Sherardia arvensis
George K. Helmkamp, Elizabeth Helmkamp
2006-4-13
10179
El Dorado
Northern Sierra Nevada Foothills, El Dorado National Forest, Along Calif. Hwy 193, just N of Kelsey, south of Gopher Hill
610
Comment
UCR189034
Sidalcea glaucescens
George 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
UCR189180
Sidalcea glaucescens
George K. Helmkamp
2007-7-7
12497
Alpine
Northern Sierra Nevada Mountains, Blue Lake Road, 5.2 miles south of its junction with CA-88; south end of Hope Valley area near Red Lake Creek
2189
Comment
UCR196800
Sidalcea glaucescens
George K. Helmkamp, E. A. Helmkamp
2008-6-3
13585
El Dorado
Sierra Nevada Mountains, Forbay Road, 4.8 miles northwest of its junction with CA-50 at Pollock Pines
965
Comment
CHSC118019
Sidalcea hartwegii
G. K Helmkamp; E. A Helmkamp
2007-4-20
11763
El Dorado
Foothills, Northern Sierra Nevada Mountains; 2.2 miles north of US-50 on Bass Lake Road, overlooking Bass Lake; between El Dorado Hills and Cameron Park.
384
Comment
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
UCD116737
Sidalcea hartwegii
G. K. Helmkamp; E. A. Helmkamp
2007-4-20
11763
El Dorado
Northern Sierra Nevada Mountains, 2.2 miles north of US-50 on Bass Lake Road, overlooking Bass Lake, between El Dorado Hills and Cameron Park.
384
Comment
UCR256514
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
SEINET273099
Sidalcea malviflora
G. K. Helmkamp, E. A. Helmkamp
1997-6-26
2162
Mendocino
Fort Bragg
6
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
UCR173250
Silene californica
George K. Helmkamp, Elizabeth Helmkamp
2006-5-13
10457
Placer
Northern Sierra Nevada Foothills, c. 4 air mi. NE of Auburn, along an unnamed road to Lake Clementine, 1.2 mi. N of Forest Hill Road
422
Comment
UCR222363
Silene californica
George K. Helmkamp, Mary Alice Barnes, Mary Jane Ganive
2010-6-13
16276
El Dorado
Sierra Nevada Mountains Foothills, along Forebay Road, 2.1 miles northwest of the Forebay Bridge over South Fork American River
828
Comment
UCR224247
Silene gallica
George K. Helmkamp, E. A. Helmkamp
2010-4-23
15903
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
UCR93699
Silene gallica
George K. Helmkamp
1996-5-25
1059
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
CAS-BOT-BC229021
Silene verecunda
George K. Helmkamp; Ann Kerchner; Amy Barnes
2011-8-13
18058
Calaveras
Northern Sierra Nevada Mountains: Black Springs Road (Forest Route 6N45?), 1.7 miles north of its junction with CA Hwy 4
2058
Comment
UCR27485
Silene verecunda
George K. Helmkamp
1982-9-17
s.n.
Kern
4.2 mi. above snow gate on the road to Mt. Pinos
2134
Comment
UCR217863
Sisymbrium altissimum
George K. Helmkamp, E. A. Helmkamp
2010-7-9
16476
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
OBI37413
Sisymbrium irio
G. Helmkamp
1985-3-9
2
San Luis Obispo
Big Morongo Preserve. the Nature Conservancy. In front of manager's residence
Comment Read comments Jul 24 2014
UCR140494
Sisyrinchium bellum
George K. Helmkamp
2004-4-21
8466
Santa Barbara
San Rafael Mountains, Pintado Creek, 8.5 mi N of Los Olivos along Figeroa Mtn Rd.
412
Comment
UCR196940
Smilacina racemosa
George K. Helmkamp, E. A. Helmkamp
2008-6-3
13553
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
UCR18564
Solanum americanum
George K. Helmkamp
1974-10-18
s.n.
Madera
Manzanita Lake, at the parking lot
Comment
HSC79244
Solanum douglasii
G. K. Helmkamp
1983-10-8
- 9
San Bernardino
Big Morongo Preserve of The Nature Conservancy, Morongo Valley, near the house in the San Bernardino Co. owned area.
762
Comment
UCR159234
Solanum douglasii
George K. Helmkamp, E. A. Helmkamp
2004-7-14
8761
Santa Barbara
Central Coast, Along Jalama Rd about 12 mi SW of its junction with Calif. Hwy 1 (SW of Lompoc)
128
Comment
UCD127018
Solanum umbelliferum
G. K. Helmkamp; E. A. Helmkamp
2001-4-27
6556
Kern
Temblor Range, CA-58, 1.1 mi SW of the San Luis Obispo Co. line.
792
Comment
UCR102148
Solanum umbelliferum
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3674
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
VVC107
Solidago californica
G. K. Helmkamp
1995-10-28
1 -6
San Bernardino
San Bernardino Mtns, Arrastre Cteek 1/2 mile NE of CA 38 on Round Valley Rd (2N01), 6.5 mi SE of Big Bear City
2439
Comment
UCR123335
Solidago canadensis subsp. elongata
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6887
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
UCR258130
Solidago canadensis subsp. elongata
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-8-4
19550
Amador
Northern Sierra Nevada Mountains, West Lake Road along the west side of Silver Lake; 4.1 miles north of junction with Plasse Road
2247
Comment
UCR18620
Solidago occidentalis
George K. Helmkamp
1974-10-18
s.n.
Madera
Sierra Nevada Mtns. Foothills, Fresno River at Yosemite Forks
854
Comment
UCR67459
Solidago occidentalis
George K. Helmkamp
1990-9-23
G- 10
Lassen
north of Ravendale
1677
Comment
UCR122358
Solidago spathulata var. spathulata
George K. Helmkamp, E. A. Helmkamp
2001-7-8
7023
Humboldt
North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay
15
Comment
UCR60014
Solidago spectabilis
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
UCR146828
Sorghum bicolor
George K. Helmkamp, E. A. Helmkamp
2004-10-8
8843
San Luis Obispo
Central Coast, Biddle Regional Park, 7 mi NE of Arroyo Grande along Lopez Drive and Arroyo Grande Creek
136
Comment
UCD99163
Spergula arvensis
G. K. Helmkamp
2004-3-15
8364
San Luis Obispo
San Luis Obispo County: edge of Nipomo Mesa overlooking Cienaga Valley, along CA-1 (Mesa View Dr.), 0.3 mile N of Halcyon Road.
76
Comment
SD143955
Spergularia marina
G. Helmkamp
1997-2-1
1294
Imperial
Imperial Valley: southwest of Niland along Sinclair Road just east of Hatfield Road
Comment
UCR103609
Spergularia marina
George K. Helmkamp
1997-2-1
1294
Imperial
Sonoran (Colorado) Desert, Imperial Valley, SW of Niland along Sinclair Rd and just east of Hatfield Rd.
-55
Comment
UCR37619
Spergularia marina
George K. Helmkamp
1984-5-2
D- 30
Riverside
Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve
610
Comment
UCR106438
Spergularia rubra
George K. Helmkamp, E. A. Helmkamp, A. Kerchner
1997-6-26
2163
Mendocino
North Coast, Glass Beach, Fort Bragg
6
Comment
UCR127071
Spergularia rubra
George K. Helmkamp, E. A. Helmkamp
1998-5-19
3856
Monterey
Reservoir area., San Antonio Rd 0.7 mi north of G-14 (Interlake Rd between San Antonio and Nacimiento reservoirs)
335
Comment
CLARK-A1045-847
Sphaeralcea ambigua
George K. Helmkamp
1977-5-29
San Bernardino
Mesquite Mountains Clark Mt. 15'Q
Comment
SEINET3259915
Sphenosciadium capitellatum
George K. Helmkamp, E. A. Helmkamp
2008-8-8
13992
Alpine
Northern Sierra Nevada Mountains; along CA-89, 1.4 miles east of Luther Pass.
2262
Comment
UCR218249
Spiraea densiflora
George K. Helmkamp, E. A. Helmkamp
2010-7-23
16591
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
SEINET244285
Stachys ajugoides var. rigida
G. K. Helmkamp, E. A. Helmkamp
2000-6-19
5766
Mendocino
North Coast redwood forest: CA-20 (Fort Bragg- Willits Rd) 6.8 mi E of US-1 (S of Fort Bragg).
152
Comment
UCR215778
Stachys ajugoides var. rigida
George K. Helmkamp, E. A. Helmkamp
2009-7-30
15355
Calaveras
Northern Sierra Nevada Mountains, Forestry Route 6N45, just north of its junction with CA-44, 15.1 miles northeast of Arnold
2018
Comment
UCR231860
Stachys ajugoides var. rigida
George K. Helmkamp, E. A. Helmkamp
2010-8-11
16759
Placer
Northern Sierra Nevada Mountains, Finning Mill Road, 2.3 miles north of Forest Hill Road at the crossing of McBride Creek
1082
Comment
CLARK-A1045-1335
Stachys bullata
George K. Helmkamp
1978-4-22
San Luis Obispo
Los Padres National Forest Cerro Alto Camground; Atascadero 7.5'Q
Comment
UCR130735
Stachys rigida var. quercetorum
George K. Helmkamp, E. A. Helmkamp
1999-6-27
4951
Santa Clara
San Francisco Bay Region, Sierra Azul, Mt.Umunhum Rd 1/2 mi from Hicks Rd., 1/2 mi west of Bald Mtn., 4 mi south of San Jose & 2 mi west of Almaden Reservoir
732
Comment
UCR158191
Stachys rigida var. quercetorum
George K. Helmkamp
2004-6-12
8629
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-BC386947
Stellaria media
G. 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
SD234357
Stellaria media
G. K. Helmkamp, E. A. Helmkamp
2006-3-19
10094
Amador
Northern Sierra Nevada Foothills: Along CA Highway 49 S of Plymouth (Amador City 7.5' Q)
323
Comment
UCR140371
Stellaria media
George K. Helmkamp
2004-3-21
8384
San Luis Obispo
Central Coast, Mesa Dunes Mobile Home Park along Mesa View Dr., 0.2 mi south of the junction of Halcyon Rd., SE of Oceano
61
Comment
UCR161247
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2005-2-9
8880
Santa Barbara
Outer South Coast Ranges, south edge of Sierra Madre Mtns north of Sisquoc; 1.6 mi north of Foxen Canyon Road along Tepusquet Road
171
Comment
UCR161300
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2005-3-9
9099
San Luis Obispo
Outer Central Coast Hills, Irish Hills; See Canyon, 1.0 mi N of San Luis Bay Drive
43
Comment
UCR171735
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2006-2-9
10059
Placer
Northern Central Valley, English Colony Way [Humphrey Road] at Sierra College Blvd near Clover Valley Creek; SE of Lincoln
183
Comment
UCR233014
Stellaria media
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17274
Sutter
Sacramento Valley, Garden Highway at the junction with Garwood Road, c. 1 mi. SW of Nicolaus
11
Comment
UCR161696
Stellaria nitens
George K. Helmkamp, E. A. Helmkamp
2005-3-8
9054
San Luis Obispo
Coastal Hills, Prefumo Canyon, north side of Irish Hills; 2.2 mi west of Los Osos Valley Road
122
Comment
UCR233315
Stephanomeria
George K. Helmkamp, E. A. Helmkamp
2011-9-1
18215
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
UCR132150
Stephanomeria spinosa
George K. Helmkamp, E. A. Helmkamp
1993-7-28
185
Mono
Sierra Nevada Mountains, Long Valley mesa at the junction of Owens River Road and Lake Crowley
2104
Comment
UCR248404
Stipa occidentalis var. pubescens
George K. Helmkamp, Elizabeth Helmkamp
2013-7-22
21099 A
El Dorado
Northern Sierra Nevada Mountains, Hell's Delight Road, just west of the junction with Silver Fork Road, 2.8 miles north of CA-88
2006
Comment
UCR121953
Stipa pinetorum
George K. Helmkamp, E. A. Helmkamp
1998-8-11
4291
Inyo
White Mountains, along White Mtn. Rd. and west of the Bristlecone Pine boundary; 0.5 miles northwest of Shulman Grove
3079
Comment
UCR214833
Stipa pulchra
George K. Helmkamp, E. A. Helmkamp
2005-3-14
9159
Santa Barbara
South Outer Coast Ranges, San Rafael Mountains; Figueroa Mountain Road, 6.2 mi. NNE of Los Olivos
402
Comment
SEINET10792047
Stipa thurberiana
George K. Helmkamp, E. A. Helmkamp
2013-8-14
Helmkamp 22197
Alpine
Northern Sierra Nevada Mountains; along CA-89, 1.9 mile E of Monitor Pass, then 0.1 mile SW on an unnamed dirt road (Topaz Lake 7.5' Quad.).
2846
Comment
UCR122402
Streptanthus diversifolius
George K. Helmkamp, E. A. Helmkamp
2002-4-23
7528
Madera
Western Sierra Nevada foothills, 2.5 miles north of Oakhurst along CA Hwy 41
762
Comment
CLARK-A1045-1438
Streptanthus tortuosus var. orbiculatus
George K. Helmkamp
1977-8-6
Mariposa
Sierra Nevada 2 miles east of Yosemite Creek, roadside; Yosemite Falls 7.5'Q
Comment
UCR140779
Styrax officinalis var. redivivus
George K. Helmkamp
2004-4-14
8439
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR176427
Symphoricarpos albus var. laevigatus
George K. Helmkamp, E. A. Helmkamp
2006-8-7
11158
El Dorado
Northern Sierra Nevada Mountains, Mormon Emigrant Trail, 16.7 miles east of its junction with Sly Park Road
1944
Comment
RSA0035729
Symphoricarpos rotundifolius
George K. Helmkamp, Elizabeth A. Helmkamp
2013-8-14
22187
Alpine
along CA-89, 1.3 miles southwest of Monitor Pass
2503
Comment
UCD136644
Symphyotrichum spathulatum var. intermedium
G. K. Helmkamp; E. A. Helmkamp
2006-7-28
11006
El Dorado
Northern Sierra Nevada Mountains: Echo Summit along Hwy US-50; at entrance to the road maintenance station.
2245
Comment
CAS-BOT-BC249055
Symphyotrichum spathulatum var. spathulatum
George K. Helmkamp; E. A. Helmkamp
2010-8-26
16834
Nevada
Northern Sierra Nevada Mountains: South Fork Yuba River, Forest Route 85 (Fordyce Lake Rd) north of Hampshire Rocks Road and I-80, 1 mi. NNW (351 deg. ) of Cisco
1634
Comment
CAS-BOT-BC249056
Symphyotrichum spathulatum var. spathulatum
George K. Helmkamp; E. A. Helmkamp
2010-9-1
16896
El Dorado
Northern Sierra Nevada Mountains: Mehrten Springs Road, 0.6 mile north of its junction with CA-88
2018
Comment
CAS-BOT-BC249063
Symphyotrichum spathulatum var. spathulatum
George K. Helmkamp; E. A. Helmkamp
2011-9-24
18331
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
UCR176000
Symphyotrichum spathulatum var. spathulatum
George K. Helmkamp, E. A. Helmkamp
2006-7-28
11039
El Dorado
Northern Sierra Nevada Mtns, 2.5 miles south of Hwy US-50, beside Phillips on Sierra-at-Tahoe Rd
2226
Comment
CAS-BOT-BC526865
Taeniatherum caput-medusae
George K. Helmkamp; Elizabeth Helmkamp
2013-5-30
20720
Nevada
Northern Sierra Nevada Mountains Foothills: along Hwy CA-20, 3.5 mi W of CA-49 in Grass Valley
623
Comment
UCR104009
Tamarix ramosissima
George K. Helmkamp
1998-4-4
3094
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
UCR140778
Tauschia arguta
George K. Helmkamp
2004-4-14
8440
Santa Barbara
Santa Inez Mountains, Cold Spring Canyon, along Stagecoach Rd just off Hwy 154, c. 5 miles SE of Lake Cachuma
610
Comment
UCR233640
Tellima grandiflora
George K. Helmkamp, E. A. Helmkamp
2011-6-9
17497
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
UCR245591
Thlaspi arvense
George K. Helmkamp, Elizabeth Helmkamp
2013-8-14
22202
Alpine
Northern Sierra Nevada Mountains, Ebbets Pass, along CA-4, 4.8 miles west of its junction with CA-89
1924
Comment
RSA667075
Thysanocarpus curvipes
George K. Helmkamp, E. A. Helmkamp
2001-4-27
6552
Kern
Temblor Range: CA-58, 1.1 mi SW of the San Luis Obispo Co. line.
793
Comment
UCR122268
Thysanocarpus curvipes
George K. Helmkamp, E. A. Helmkamp
2002-4-15
7367
Santa Barbara
Western Transverse Range, Sierra Madre Mountains, Miranda Pine Road, 1.0 mi southeast of CA Hwy 166
549
Comment
UCR206353
Thysanocarpus curvipes
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14375
Colusa
Inner North Coast Range Foothills, along CA-20, 14.3 miles southwest of Williams
375
Comment
UCR123202
Tiquilia nuttallii
George K. Helmkamp, E. A. Helmkamp
1993-6-16
158
Inyo
Owens Valley, 2 mi east of Pleasant Valley Campground along Chalk Bluff Road, NW of Bishop
1280
Comment
RSA779397
Torilis arvensis
George K. Helmkamp, Amy Barnes
2009-7-12
15189
Placer
along Todd Valley Road, 0.1 mile south of its junction with Foresthill Road, c. 13 air miles NE of Auburn
854
Comment
SEINET9262004
Torilis arvensis
George K. Helmkamp, Amy Barnes
2013-1
22316
Calaveras
Sierra Nevada Mountains Foothills: Utica Powerhouse Road (beside Angel's Creek) 0.6 mile northeast of its junction with CA-4 (Murphys 7.5 Q
974
Comment
UCR257012
Torilis arvensis
George K. Helmkamp, Mary Alice Barnes
2013-5-13
20566
Amador
Sierra Nevada Mountains Foothills, along E-16/Shenandoah Rd., 3.6 road miles south of River Pines, 4.15 air miles NE (39 deg. ) of Plymouth
517
Comment
SEINET11266388
Torilis nodosa
George Helmkamp, E. A. Helmkamp
2011-5-19
17315
Calaveras
Sierra Nevada Foothills: Paloma Road, 3.1 miles southwest of its junction with CA - 26, 4 miles NE (34 degree) of Valley Springs (Valley Spring 7.5'); 0
352
Comment
SEINET273070
Torilis nodosa
G. K. Helmkamp, E. A. Helmkamp
1998-5-16
3684
Santa Clara
Sierra Azul: Hicks Rd at S end of San Jose; 3.2 mi S of Camden Ave.
152
Comment
SEINET4560805
Torilis nodosa
George K. Helmkamp, E. A. Helmkamp
2011-1
17793
Nevada
Northern Sierra Nevada Mountains Foothills: You Bet Road just northeast of its junction with CA-174, 1.25 mi east (91 degrees) of Peardale
778
Comment
UCR205999
Tragopogon dubius
George K. Helmkamp, E. A. Helmkamp
2009-6-3
14876
El Dorado
Sierra Nevada Mountains Foothills, Pony Express Trail, 0.7 mile east of its junction with Sly Park Road in Pollock Pines
851
Comment
UCR258173
Tragopogon dubius
George K. Helmkamp, Ann Kerchner, Amy Barnes
2012-7-23
19483
Nevada
Northern Sierra Nevada Mountains, Stampede Meadows Road, c. 0.65 mile south of the Sierra County line
1738
Comment
UCR175429
Tragopogon porrifolius
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-3
10611
El Dorado
Northern Sierra Nevada foothills, city park at the east end of Shingle Springs, along Pleasant Valley Road
433
Comment
CDA25234
Tribulus terrestris
G. K. Helmkamp, E. A. Helmkamp
2007-10-13
13094
San Joaquin
Northern San Joaquin Valley; Along Highway CA-88, 1.0 mile southwest of Clements at Disch Road.
Comment
UCR30079
Trichoptilium incisum
George K. Helmkamp
1983-4-5
483 39
Riverside
Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road
489
Comment
UCR103956
Trichostema lanatum
George K. Helmkamp
1997-6-21
2070
San Luis Obispo
Central Coast, Questa Ridge north of San Luis Obispo and 0.4 mi west of radio towers
854
Comment
UCR179741
Trichostema lanceolatum
George K. Helmkamp, E. A. Helmkamp
2006-10-18
11530
El Dorado
Northern Sierra Nevada Mountains Foothills, Diamond Springs; village along Calif. Hwy 49 south of Placerville
540
Comment
SBBG103919
Trichostema micranthum
G. K. Helmkamp
1993-9-22
36 -2
San Bernardino
16.4 mi up Burns Cyn from jct of Pipes Cyn and Pioneer Town Rds
2194
Comment
UCR206937
Trientalis latifolia
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14929
Shasta
Southern Cascade Range, KOA campground on the south side of CA-44, 4.0 miles east of Shingletown
1098
Comment
SBBG129010
Trientalis latifolia
G. K. Helmkamp, E. A. Helmkamp
2012-5-18
19005
El Dorado
junction of Bonnetti Rd (Capps Crossing Rd) and Mormon Emigrant Trail, E of Jenkinson Lake
1261
Comment
SD227822
Trifolium
G. K. Helmkamp, E. A. Helmkamp
1998-5-16
3744
San Mateo
Portola Valley: Golden Hills Rd along Los Trancos Creek.
106
Comment
RSA709319
Trifolium albopurpureum var. albopurpureum
George K. Helmkamp
2004-4-23
8532
Santa Barbara
San Rafael Mountains: Figueroa Mountain Rd., 15.0 Owens peak region, Gold Canyonmi NE of Los Olivos.
1341
Comment
SD239755
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
UCR235640
Trifolium ciliolatum
George K. Helmkamp, E. A. Helmkamp
2012-4-30
18885
El Dorado
Northern Sierra Nevada Mountains Foothills, Mosquito Road, 2.4 mile north of the bridge over the South Fork American River
694
Comment
UCR57524
Trifolium cyathiferum
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
SBBG129036
Trifolium dubium
G. K. Helmkamp, E. A. Helmkamp
2012-5-31
19086
Calaveras
CA-26, 2.2 km NE (63 deg) of Glencoe, 0.8 mi W of the crossing over the S Fork Mokelumne River
741
Comment
SD243144
Trifolium dubium
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17152
Placer
Sacremaento Valley: along Riosa Road at the east edge of the village of Sheridan (Lincoln 7.5'Q)
41
Comment
UCR191049
Trifolium dubium
George K. Helmkamp, E. A. Helmkamp
2007-6-8
12285
El Dorado
Northern Sierra Nevada Mountains, Bonetti Road, 1.9 miles south of Mormon Emigrant Trail, at the bridge over Diamond Creek
1143
Comment
UCR253553
Trifolium dubium
George K. Helmkamp, Amy Barnes
2014-4-23
22805
Placer
Sierra Nevada Mountains Foothills, Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill
720
Comment
UCR258213
Trifolium dubium
George K. Helmkamp, Amy Barnes
2013-3-28
20263
Yuba
Eastern Sacramento Valley, northbound exit road from CA-65, connecting with Forty Mile Road
30
Comment
CDA36257
Trifolium hirtum
G. K. Helmkamp, E. A. Helmkamp
2009-5-2
14754
Colusa
Inner North Coast Ranges; Along CA-16, 1.8 miles north of the Yolo County line.
Comment
SD212624
Trifolium hirtum
G. K. Helmkamp, Elizabeth Helmkamp
2006-5-6
10301
Amador
Along Highway CA 49, 0.3 mile south of Drytown.
226
Comment
SD243145
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2011-5-21
17323
Calaveras
Northern Sierra Nevada Mountains Foothills: Ridge Road, 1.9 road miles southeast of CA-26, 1.8 air miles southeast (130a^z) of Glencoe (Rail Road Flat 7.5'Q)
863
Comment
UCD111152
Trifolium hirtum
G. K. Helmkamp; Elizabeth Helmkamp
2007-4-23
11816
Amador
Northern Sierra Nevada Mountains: junction of Tonzi Road and CA-124 about 7 miles north of Ione.
229
Comment
UCR122471
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
1998-5-20
3897
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
UCR217885
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2010-5-22
16090
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
SEINET269520
Trifolium hirtum
G. Helmkamp
1994-5-18
91 -18
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
UCR122464
Trifolium incarnatum
George K. Helmkamp, E. A. Helmkamp
1998-5-20
4005
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
RSA785391
Trifolium microcephalum
George K. Helmkamp, E. A. Helmkamp
2010-6-23
16345
Amador
Sutter Creek Road, 7.2 miles northeast of its junction with old CA-49 in Sutter Creek village
473
Comment
SBBG129048
Trifolium microcephalum
G. K. Helmkamp, E. A. Helmkamp
2013-6-15
20875
El Dorado
Silver Fork Rd, 2.3 mi S of its jct with US-50 in Kyburz
1454
Comment
UCD109233
Trifolium obtusiflorum
G. K. Helmkamp; E. A. Helmkamp
2005-7-31
9717
El Dorado
Northern Sierra Nevada Foothills: Junction of Ice House Road and CA Highway 50 (E of Pollock Pines).
1006
Comment
UCR171041
Trifolium obtusiflorum
George K. Helmkamp, E. A. Helmkamp
2005-7-31
9717
El Dorado
Northern Sierra Nevada Foothills, Junction of Ice House Road and Calif. Highway 50, east of Pollock Pines
1006
Comment
UCR257764
Trifolium pratense
George K. Helmkamp, Amy Barnes
2014-7-28
22941
El Dorado
Sierra Nevada Mountains Foothills, Lake Walton beside Balderston Road; 1/4 mile south of Wentworth Springs Road
966
Comment
UCR121500
Trifolium repens
George K. Helmkamp, E. A. Helmkamp
2000-6-19
5774
Mendocino
North Coast Range, Calif. Hwy 20 (Fort Bragg-Willits Rd) 6.8 mi east of US-1, southeast of Fort Bragg
152
Comment
UCD109854
Trifolium willdenovii
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-9
10354
Amador
Northern Sierra Nevada Foothills: Along CA Hwy 88, 0.9 mi. S of the El Dorado County line at Enterprise.
274
Comment
UCR107296
Trifolium willdenovii
George K. Helmkamp, E. A. Helmkamp
1998-5-14
3661
Monterey
Along Calif. Hwy 25, 17.6 mi. NE of the jct with Calif. Hwy 198
488
Comment
UCR208606
Trifolium willdenovii
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14618
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 9.8 miles east of its junction with Forest Hill Road in Foresthill
433
Comment
UCR224242
Trifolium willdenovii
George K. Helmkamp, E. A. Helmkamp
2010-4-24
15937
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
CLARK-A1045-1152
Trifolium wormskioldii
George K. Helmkamp
1977-9-1
VC
Alpine
Sierra Nevada roadside seep; ; Freel Peak 7.5'Q
2346
Comment
UCR123338
Trifolium wormskioldii
George K. Helmkamp, Elizabeth Helmkamp
2001-7-7
6889
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
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
UCD139890
Trillium angustipetalum
G. 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).
1508
Comment
UCR249533
Triphysaria eriantha
George K. Helmkamp, Amy Barnes
2013-3-28
20285
Placer
Eastern Sacramento Valley, along 10th Street/Ranch House Rd., 0.6 mile south of its junction with Riosa Road in Sheridan
43
Comment
UCR249566
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
319
Comment
UCR250186
Triphysaria eriantha
George K. Helmkamp
2013-3-1
20152
Placer
Sacramento Valley, Ranch House Road, 0.6 mile southeast of Riosa Road in Sheridan
37
Comment
UCR207832
Triphysaria eriantha subsp. eriantha
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14462
San Joaquin
San Joaquin Valley, junction of Collier Road and CA-88, about 0.2 mile north of the Mokelumne River
43
Comment
UCR250089
Triphysaria eriantha subsp. eriantha
George K. Helmkamp, Elizabeth Helmkamp
2013-3-26
20207
Calaveras
Eastern San Joaquin Valley, Milton, Jenny Lind Road (Milton Rd.), 7.4 miles south of its junction with CA-26
120
Comment
SEINET11261457
Triphysaria versicolor subsp. faucibarbata
George Helmkamp, E. A. Helmkamp
2011-4-10
17158
Placer
In Sacramento Valley along Riosa Road at the E edge on the village of Sheridan.; 0
41
Comment
UCR207837
Triphysaria versicolor subsp. faucibarbata
George K. Helmkamp, E. A. Helmkamp
2009-3-26
14465
San Joaquin
San Joaquin Valley, along Tully Road, 0.1 mile north of its junction with Kettleman Lane, 3.8 miles south of CA-88 in Lockeford
24
Comment
RSA519132
Trisetum spicatum
George K. Helmkamp
1990-8-3
s.n.
Mono
Barren, at the top of Mammoth Mountain.
3354
Comment
UCR194883
Triteleia
George K. Helmkamp, E. A. Helmkamp
2007-5-26
12107
Nevada
Northern Sierra Nevada Mountains Foothills, Tyler Foote Crossing Road, 1.7 miles northeast of CA-49
617
Comment
SD240797
Triteleia hyacinthina
George K. Helmkamp, E. A. Helmkamp
2011-4-10
17164
Yuba
Sacramento Valley: along Camp Beale Highway.Spenceville Road, c. 1.75 miles northeast of Wheatland (Wheatland 7.5'Q)
43
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
SEINET3889062
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
2010-5-17
16051
El Dorado
Sierra Nevada Mountains Foothills: Pine Hill Road at the junction with Bertana Court: southeast edge of State Ecological Preserve, 1.6 mi NW (2931/4) of Rescue (Shingle Springs 7.5').; 0
459
Comment
UCR107337
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
1998-5-16
3702
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
UCR230072
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
2011-5-19
17316
Calaveras
Sierra Nevada Foothills, Paloma Road, 3.1 miles southwest of its junction with CA-26, 4 miles NE (34 deg. ) of Valley Springs
352
Comment
UCR242771
Triticum aestivum
George K. Helmkamp, E. A. Helmkamp
2010-4-14
15858
Solano
Northern San Joaquin Valley, Tremont Road, 0.8 mile west of Mace Blvd, 3.8 mi. (air) SE of Davis
3
Comment
UCD94866
Typha latifolia
G. K. Helmkamp; E. A. Helmkamp
2007-9-30
13057
Sutter
Sacramento Valley. Sacramento Ave. on the east side of CA-99, junction 1.4 miles north of the Feather River.
21
Comment
UCR172660
Umbellularia californica
George K. Helmkamp, Elizabeth Helmkamp
2006-4-13
10187
El Dorado
Northern Sierra Nevada Foothills, El Dorado National Forest, along Volcanoville Road, 7.7 mi N of Wentworth Springs road (NE of Georgetown)
915
Comment
UCSB69269
Umbellularia californica
Helmkamp, G.; Helmkamp, E.
2007-3-11
El Dorado
Foothills; Northern Sierra Nevada Mountains; Traverse Creek Road at the creek crossing; 2.4 miles northeast of CA-193 (Garden Valley 7.5')
518
Comment
SEINET2442331
Urtica dioica
George K. Helmkamp, E. A. Helmkamp
2009-8-4
15366
Alpine
Sierra Nevada Mountains: along CA-4 at milepost 30, 1.6 miles south of its junction with CA-89; along East Fork Carson River (heenan Lake 7.5' Q).
1786
Comment
UCR258991
Urtica dioica
George K. Helmkamp, Amy Barnes
2014-9-16
23071
Alpine
Eastern Sierra Nevada Mountains, Paynesville, junction of Chambers Lane and Diamond Valley Road along West Fork Carson River
1593
Comment
UCR262431
Urtica urens
George K. Helmkamp, E. A. Helmkamp
2012-1-13
18511
Sacramento
Southern Sacramento Valley/lower Sierra Nevada Foothills, Michigan Bar Road 0.9 mile north of Jackson Road (CA-16) and just south of the Michigan Bar bridge
85
Comment
SD239951
Valeriana californica
George K. Helmkamp, Ann Kerchner, Amy Barnes
2011-8-13
18073
Alpine
Northern Sierra Nevada Mountains: south side of Bear Valley Village, along CA Hwy 4.
2168
Comment
UCR88280
Valeriana capitata subsp. californica
George K. Helmkamp
1995-9-23
3 38
Alpine
Sierra Nevada Mtns., W side of Sonora Pass just beyond Mono County line
2927
Comment
UCD139931
Veratrum californicum var. californicum
G. K. Helmkamp; E. A. Helmkamp
2007-7-17
12541
Alpine
Northern Sierra Nevada Mountains; Blue Lake Road, 11.5 miles south of its junction with CA-88, 0.5 mile due east of Lower Blue Lake.
2463
Comment
UCR189906
Verbascum
George K. Helmkamp, E. A. Helmkamp
2007-9-8
12905
El Dorado
Foothills, northern Sierra Nevada Mountains, Lake Oaks Mobile Home Park, Diamond Springs; corner of Pleasant Valley Road and Patterson Drive
530
Comment
SD239929
Verbascum thapsus
George K. Helmkamp, William Barnes
2010-9-4
16923
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
UCR170419
Verbascum thapsus
George K. Helmkamp, Elizabeth Helmkamp
2005-11-15
10027
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
SD241194
Verbascum virgatum
George K. Helmkamp, E. A. Helmkamp
2010-4-17
15890
Placer
Sierra Nevada Mountains Foothills: Rattlesnake Bar Road, 7.3 miles southwest of its junction with CA-49 near Pilot Hill (Pilot Hill 7.5'Q)
331
Comment
UCR122994
Verbena lasiostachys var. lasiostachys
George K. Helmkamp, E. A. Helmkamp
2001-5-30
6729
San Benito
Gabilan Range, 11.0 mi south of San Juan Bautista on Hwy G-1; entrance to Fremont Peak State Park
800
Comment
UCR158746
Verbena lasiostachys var. lasiostachys
George K. Helmkamp, E. A. Helmkamp
2004-6-20
8660
Santa Barbara
Outer south coast ranges, Santa Ynez Mountains. Along Miguelito Rd at about Mile-5. SW of Lompoc and near La Tipta Hill
335
Comment
UCD125983
Verbena lasiostachys var. scabrida
G. K. Helmkamp; E. A. Helmkamp
2000-9-2
5964
San Luis Obispo
San Luis Obispo County: Iris Hills: See Canyon (south portion), ca. 1.8 miles north of San Luis Bay Drive (north of Avila Beach).
91
Comment
SD239952
Verbena litoralis
G. K. Helmkamp, E. A. Helmkamp
2009-9-5
15571
Butte
Sacramento Valley: Lower Honcut Road, 0.8 mile east of its junction with CA-70, 2.5 mi. WSW (261a^z) of Honcut, 6.6 mi. SE (116a^z) of Gridley.
27
Comment
UCD126114
Verbena litoralis
G. K. Helmkamp; E. A. Helmkamp
2007-10-7
13068
Butte
Northern Sacramento Valley: East Gridley Road at the west edge of the Feather River bridge.
27
Comment
UCR230077
Verbena litoralis
George K. Helmkamp, E. A. Helmkamp
2010-10-20
17047
Sutter
Sacramento Valley, along Nicolaus Ave. 0.5 miles east of Trowbridge
15
Comment
SEINET3285117
Veronica persica
George K. Helmkamp, E. A. Helmkamp
2007-3-14
11618
El Dorado
Foothills, Sierra Nevada Mountains; Lake Oaks Mobile Home Park, Diamond Springs, Pleasant Valley Road and Patterson Drive.
537
Comment
UCR106712
Veronica persica
George K. Helmkamp, E. A. Helmkamp
1998-5-18
3787
Santa Clara
Central Coast Range, E of San Jose; Kincaid Road 1.1 mi north of Mt. Hamilton Road. ( =Calif. Hwy 130)
793
Comment
UCR232282
Veronica persica
George K. Helmkamp, E. A. Helmkamp
2011-3-12
17063
San Joaquin
Northern San Joaquin Valley, Collier Road, 0.2 mile east of its junction with Suttenfield Road, 9.4 mi. NE (50 deg. ) of Lodi
40
Comment
UCR173743
Veronica serpyllifolia subsp. humifusa
George K. Helmkamp, Elizabeth A. Helmkamp
2006-6-10
10691
El Dorado
Northern Sierra Nevada Mountains, along Ice House Road, 10.6 miles south of Wentworth Springs Road (just south of the Jones Fork of Silver Creek)
1509
Comment
CLARK-A1045-782
Vicia americana
George K. Helmkamp
1977-6-5
San Bernardino
San Bernardino Mountains dirt road [unpaved State Highway 173] between Lake Arrowhead and Mojave River Forks Regional Park; ; Lake Arrowhead 7.5'Q
1523
Comment
UCD143805
Vicia americana subsp. americana
G. K. Helmkamp; Elizabeth A. Helmkamp
2006-6-10
10661
El Dorado
Northern Sierra Nevada Mountains, Ice House Road, 6.1 miles north of Hwy US-50.
1653
Comment
UCR61747
Vicia sativa
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
UCD108912
Vicia sativa subsp. nigra
G. K. Helmkamp; E. A. Helmkamp
2007-4-26
11835
Calaveras
Northern Sierra Nevada Mountains; along CA-49, 1 mile west of Mokelumne Hill, 1.7 miles south of the Amador County line.
370
Comment
UCR158188
Vicia sativa subsp. nigra
George K. Helmkamp
2004-6-12
8621
Santa Barbara
Central Coast Range, Purissima Hills. Harris Grade Rd at '28.04 mi', about 3 mi south of CA Hwy 135
229
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
UCR257707
Vicia sativa subsp. nigra
George K. Helmkamp, Mary Alice Barnes
2013-4-30
20439
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
SBBG128855
Vicia sativa subsp. sativa
G. K. Helmkamp, E. A. Helmkamp
2011-5-12
17283
Sutter
0.1 mi SW of village of Nicolaus on 1st St, beside the Feather River, Sacramento Valley
9
Comment
SEINET4691714
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2011-1
17283
Sutter
Sacramento Valley: 0.1 mile southwest of village of Nicolaus on 1st street, beside the Feather River
9
Comment
UCR123141
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2001-6-2
6765
San Mateo
Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay
6
Comment
UCR140117
Vicia sativa subsp. sativa
George K. Helmkamp
2004-2-11
8287
San Luis Obispo
Central Coast, Nipomo Mesa, Pomeroy Rd, 1.1 mi N of Willow Rd.
130
Comment
UCR208268
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2009-5-7
14649
Placer
Sierra Nevada Mountains Foothills, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill
476
Comment
UCR208269
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2009-5-4
14595
El Dorado
Sierra Nevada Mountains Foothills, Sly Park Road, 0.3 miles southwest of its junction with Mormon Emigrant Trail
1067
Comment
UCR233050
Vicia sativa subsp. sativa
George K. Helmkamp, E. A. Helmkamp
2011-5-12
17283
Sutter
Sacramento Valley, 0.1 mile southwest of village of Nicolaus on 1st Street, beside the Feather River
9
Comment
UCR257546
Vicia sativa subsp. sativa
George K. Helmkamp
2014-4-17
22764
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
UCD109120
Vicia villosa subsp. varia
G. K. Helmkamp; E. A. Helmkamp
2007-3-23
11696
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
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
SD227824
Vicia villosa subsp. villosa
G. K. Helmkamp, E. A. Helmkamp
1999-5-20
4830
Santa Barbara
Casmalia Hills: Corralitos Cyn SE of Guadalupe. 3.8 mi SE of CA-1 on Brown Rd.
305
Comment
SEINET2441671
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2009-4-22
14560
Placer
Sierra Nevada Mountains Foothills: Forest Hill Road 0.8 mile east of its junction with CA-49 and the North and Middle Forks of the American River (Auburn 7.5' Q.).
277
Comment
UCR134388
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2001-4-29
6581
San Luis Obispo
Irish Hills, Clark Valley Rd., 3.8 mi south of Los Osos Valley Rd., east of Los Osos
213
Comment
UCR197384
Vicia villosa subsp. villosa
George K. Helmkamp, E. A. Helmkamp
2008-4-17
13277
Sutter
Sacramento Valley, along Pass Road at the south side of Sutter Buttes, 2.3 miles northwest of Sutter
70
Comment
UCR242943
Vinca major
George K. Helmkamp, E. A. Helmkamp
2011-5-24
17361
El Dorado
Northern Sierra Nevada Mountains Foothills, Mesquite Road, 6.3 miles south of its junction with Wentworth Springs Road. 7.2 mi. NW (318 deg. ) of Pollock Pines
1098
Comment
UCR111006
Viola bakeri
George K. Helmkamp, E. A. Helmkamp
1999-6-30
5112
Placer
Northern Sierra Nevadas, Soda Springs Road 0.9 mi south of Donner Pass Road, approaching Ice Lakes.
2104
Comment
UCR192509
Viola bakeri
George K. Helmkamp, E. A. Helmkamp
2007-5-31
12219
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
CLARK-A1045-537
Viola douglasii
George K. Helmkamp
1979-6-5
#2
San Bernardino
San Bernardino Mountains at the junction of Forest Service road 3N08 and road 3N66Y; dry opening under pines; ; Big Bear City 7.5'Q
2285
Comment
UCR205998
Viola lobata subsp. integrifolia
George K. Helmkamp, E. A. Helmkamp
2009-6-10
14938
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
UCR197300
Viola macloskeyi
George K. Helmkamp, E. A. Helmkamp
2008-6-23
13723
Amador
Northern Sierra Nevada Mountains, Dufrene Road, 1.1 miles south of its junction with CA-88 (jct. is between Mormon Emigrant Trail and Bear River Reservoir Road), c. 2 miles (air) north of the west end of Lower Bear River Reservoir
2055
Comment
UCR196826
Viola purpurea subsp. purpurea
George K. Helmkamp, E. A. Helmkamp
2008-5-15
13447
El Dorado
Northern Sierra Nevada Mountains, Granite Springs road, 0.4 mile east of its junction with Ice House Road
1707
Comment
UCR236917
Viola purpurea subsp. purpurea
George K. Helmkamp, E. A. Helmkamp
2012-5-28
19075
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
UCR115585
Viola purpurea subsp. quercetorum
George K. Helmkamp, E. A. Helmkamp
2000-4-20
5409
San Luis Obispo
Central Coast, road crest between See Canyon Road and Prefumo Canyon Road, SW of San Luis Obispo
320
Comment
UCR237068
Viola sheltonii
George K. Helmkamp, E. A. Helmkamp
2012-5-18
19019
El Dorado
Northern Sierra Nevada Mountains Foothills, Capps Crossing Road (Bonnetti Rd.), 0.1 mile northwest of the bridge over Diamond Creek, E of Jenkinson Lake and S of US Hwy 50
1186
Comment
UCD94770
Vulpia myuros
G. K. Helmkamp; Elizabeth Helmkamp
2006-5-24
10552
El Dorado
Northern Sierra Nevada Mountains. Junction of Ice House Canyon Road and West Meadows Road (SSW of Union Valley Reservior, just N of Hwy 50).
1067
Comment
SD247296
Vulpia myuros var. hirsuta
George K. Helmkamp, Elizabeth Helmkamp
2012-4-7
18719
San Joaquin
San Joaquin Valley: along CA-26, 3.2 miles southwest of its junction with N Wimer Road, NE of town of Linden (Valley Springs SW 7.5'Q)
52
Comment
SEINET3412004
Vulpia myuros var. myuros
George K. Helmkamp, E. A. Helmkamp
2012-1
18554
Sacramento
Sacramento Valley: Rancho Omochumnes, Indio Drive, 0.2 mile ...
64
Comment
UCR196763
Woodsia oregana
George K. Helmkamp
2008-6-17
13690
Amador
Northern Sierra Nevada Mountains, Bear River Reservoir Road on the branch leading to Cole Creek, 2.7 miles east of Bear River Reservoir dam
1814
Comment
SD197701
Xanthium spinosum
G. 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.
4
Comment
UCR201776
Xanthium spinosum
George K. Helmkamp, E. A. Helmkamp
2008-10-6
14207
Yuba
Sacramento Valley, junction of CA-65 and Ostrom No. 3 Road, southeast of Olivehurst
24
Comment
HSC79043
Xanthium strumarium
G. K. Helmkamp
1983-10-8
- 10
San Bernardino
Big Morongo Preserve of The Nature Conservancy, Morongo Valley, near the house in the San Bernardino Co. owned area.
762
Comment
UCR37672
Ziziphus parryi
George K. Helmkamp
1984-4-20
840420- 4
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