ASU:Plants
G.K. Helmkamp 14421 2009-03-19
United States, California, El Dorado, Rock Creek Road, 4.1 miles east of its junction with CA-193, 38.78222 -120.78639, 485m
ASU:Plants
R.R. Halse 6701 2005-05-14
USA, Oregon, Benton, Corvallis, along State Hwy. 99 W (3rd Street) in front of the Corvallis Auction Yard., 44.5383333 -123.0319444, 69m
ARIZ
419581 George K. Helmkamp 17283 2011-05-12
United States, California, Sutter County, Sacramento Valley: 0.1 mile southwest of village of Nicolaus on 1st street, beside the Feather River, 38.901944 -121.581389, 9m
ARIZ
419044 George K. Helmkamp 18774 2012-04-17
United States, California, Yolo County, Sacramento Valley: along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland., 38.635 -121.996111
ARIZ
415455 Jon P. Rebman 23132 2012-03-28
United States, California, San Clemente Island, Camp Pendleton: Training Area Romeo II; San Onofre Mountains; east of I-5 and southeast of San Onofre Peak , along San Onofre Peak Road near canyon bottom and its surrounding slopes, 33.3601 -117.4914, 365m
ARIZ
387484 G. K. Helmkamp 1101 1996-05-27
United States, California, San Luis Obispo County, Los Osos, NE of the corner of Martingale Ave. & Buckskin Dr. (Morro Bay South 7.4'), 35.316667 -120.808333, 61m
UCR
George K. Helmkamp 6758 2001-05-31
United States, California, Santa Clara, Lick Observatory, Mt. Hamilton, 37.34333 -121.64333, 1265m
UCR
George K. Helmkamp 20173 2013-03-14
United States, California, Calaveras, Along CA-26, 2.2 miles northeast of its junction with CA-12, 38.24167 -120.76056, 381m
UCR
Alison Lipman s.n. 1998-05-07
United States, California, Los Angeles, Chandler, Rolling Hills, Palos Verdes Peninsula, 33.75694 -118.35389, 122m
UCR
George K. Helmkamp 13336 2008-04-25
United States, California, El Dorado, along Bear Creek Road 0.4 mile southeast of its junction with Meadow Brook Road, SE of Georgetown, 38.86861 -120.81417, 747m
UCR
George K. Helmkamp 18849 2012-04-27
United States, California, El Dorado, Mosquito Road north of Placerville, at south side of the crossing of the South Fork American River, 38.77583 -120.74833, 401m
UCR
George K. Helmkamp 9492 2005-05-17
United States, California, Monterey, 0.9 mile south of Plaskett (N of Gorda); along Calif. Highway 1, 35.90778 -121.46361, 90m
UCR
George K. Helmkamp 4832 1999-05-20
United States, California, Santa Barbara, Casmalia Hills; Corralitos Canyon, southeast of Guadalupe, 3.8 miles southeast of CA Hwy 1 on Brown Road; Casmalia Hills, 34.91333 -120.61917, 305m
UCR
George K. Helmkamp 10088 2006-03-19
United States, California, Amador, Along Calif. Highway 49 just south of Plymouth, 38.47056 -120.85278, 323m
UCR
George K. Helmkamp 11588 2007-02-24
United States, California, El Dorado, Lake Oaks Mobile Home Park, Pleasant Valley Road and Patterson Dr, east end of Diamond Springs, 38.68806 -120.83056, 537m
UCR
George K. Helmkamp 11784 2007-04-23
United States, California, Amador, along Bell Road beside Plymouth Creek just east of Calif. Hwy 49 in the vicinity of Enterprise, 38.54028 -120.84083, 302m
UCR
George K. Helmkamp 11724 2007-03-31
United States, California, Nevada, just south of the crossing of CA-49 over the South Yuba River, 39.29722 -121.08889, 390m
UCR
George K. Helmkamp 10148 2006-04-06
United States, California, El Dorado, ENE of Sacramento; 4.2 mi NW of Coloma along Calif. Hwy 49, 38.83028 -120.96528, 247m
UCR
George K. Helmkamp 15878 2010-04-17
United States, California, El Dorado, Rattlesnake Bar Road, 1.9 miles southwest of its junction with CA-49 near Pilot Hill, 38.83861 -121.04417, 314m
UCR
George K. Helmkamp 15920 2010-04-23
United States, California, El Dorado, along Salmon Falls Road, 5.6 miles south of its junction with CA-49 at Pilot Hill, 0.65 mi. north of the American River crossing, 38.78028 -121.03556, 200m
UCR
George K. Helmkamp 10176 2006-04-07
United States, California, El Dorado, E of Sacramento, between N and Middle Forks of the Cosumnes River; Sand Ridge Road, 3.1 mi. east of Calif. Hwy 49, 38.59889 -120.80111, 534m
UCR
George K. Helmkamp 15887 2010-04-17
United States, California, Placer, Rattlesnake Bar Road, 4.2 miles southwest of its junction with CA-49 near Pilot Hill, 38.81722 -121.06222, 360m
UCR
George K. Helmkamp 1101 1996-05-27
United States, California, San Luis Obispo, Los Osos, northeast of the corner of Martingale Avenue and Buckskin Drive, 35.31056 -120.81639, 61m
UCR
George K. Helmkamp 5440 2000-04-21
United States, California, San Luis Obispo, Santa Lucia Mountains. Santa Rosa Creek Road, 5.6 miles east of Cambria, 35.57 -120.97333, 76m
UCR
S. Franson 24 1997-05-03
United States, California, Lake, city of Upper Lake, near Scotts Creek Bridge on Hwy 29, c. 1/4 mile west along levee bordering Tule Lake, on levee's south side on an access road down to the lake, 39.15694 -122.92639, 405m
UCR
George K. Helmkamp 17136 2011-04-10
United States, California, Placer, east of Sheridan just north of the junction of North Kilaga Springs Road and Kilaga Springs Road, 38.97083 -121.2625, 98m
UCR
George K. Helmkamp 9299 2005-04-06
United States, California, Santa Barbara, Old Highway US 101, road to Nojoqui Falls, 0.2 mi south of junction with US Highway 101, 34.54 -120.19167, 204m
UCR
George K. Helmkamp 16104 2010-05-28
United States, California, El Dorado, Slug Gulch Road, 4.7 miles east of its junction with Perry Creek Road, c. 3.5 air mi. ESE (96°) of Fair Play, 38.58556 -120.58861, 942m
UCR
George K. Helmkamp 5764 2000-06-18
United States, California, Mendocino, Glass Beach, at Fort Bragg, 39.45333 -123.81, 9m
UCR
George K. Helmkamp 8367 2004-03-15
United States, California, San Luis Obispo, edge of Nipomo Mesa overlooking Cienaga Valley, along Calif. Hwy 1 (Mesa View Dr.), 0.3 mi N of Halcyon Rd., 35.08333 -120.585, 76m
UCR
George K. Helmkamp 11828 2007-04-26
United States, California, Amador, along Calif. E-16, 0.7 mile south of River Pines, 38.53583 -120.74667, 610m
UCR
George K. Helmkamp 4906 1999-05-22
United States, California, San Luis Obispo, Los Osos, north of the corner of Buckskin Dr and Martingale Ave; Los Osos, 35.31167 -120.81611, 61m
UCR
George K. Helmkamp 14649 2009-05-07
United States, California, Placer, Mosquito Ridge Road, 8.9 miles east of its junction with Forest Hill Road in Foresthill, 39.01972 -120.73, 476m
UCR
George K. Helmkamp 14595 2009-05-04
United States, California, El Dorado, Sly Park Road, 0.3 miles southwest of its junction with Mormon Emigrant Trail, 38.7175 -120.58, 1067m
UCR
George K. Helmkamp 11835 2007-04-26
United States, California, Calaveras, along CAHwy 49, 1 mile west of Mokelumne Hill, 1.7 miles south of the Amador County line, 38.29889 -120.73194, 370m
UCR
George K. Helmkamp 10218 2006-04-25
United States, California, El Dorado, E of Sacramento and just SW of Placerville. Forni road between US Hwy 50 and Diamond Springs, at Weber Creek, 38.71639 -120.82972, 488m
UCR
George K. Helmkamp 10336 2006-05-09
United States, California, Amador, Grass Valley Creek, 1.2 miles east of Pine Grove along Calif. Hwy 88, 38.40361 -120.64222, 762m
UCR
George K. Helmkamp 9539 2005-06-07
United States, California, San Luis Obispo, along Huasna Road, 1.3 mile west of Huasna Townsite Road, 35.12694 -120.41333, 305m
UCR
George K. Helmkamp 3870 1998-05-19
United States, California, San Luis Obispo, Santa Lucia Range; southwest of Paso Robles along CA Hwy 46 at York Mountain Road, 35.53667 -120.83944, 366m
UCR
George K. Helmkamp 18752 2012-04-14
United States, California, Butte, Cox Lane, 1.3 miles west of its intersection with La Loma Way, c. 10.3 mi. ENE (82°) of Gridley, 39.38417 -121.50361, 91m
UCR
George K. Helmkamp 14547 2009-04-21
United States, California, El Dorado, along CA-193, 1.1 miles south of the South Fork American River at Chili Bar, 38.75611 -120.81722, 381m
UCR
George K. Helmkamp 6765 2001-06-02
United States, California, San Mateo, Purisima Creek Road east of Half Moon Bay, 1.9 miles east of CA Hwy 1, 37.41889 -122.39611, 168m
UCR
George K. Helmkamp 22764 2014-04-17
United States, California, Yuba, Hammonton-Smartsville Road, 0.7 mile southwest of its junction with CA-20, c. 0.65 mi. due S of Smartsville, 39.19778 -121.2975, 264m
UCR
George K. Helmkamp 8367B 2004-03-15
United States, California, San Luis Obispo, edge of Nipomo Mesa overlooking Cienaga Valley, along CA Hwy 1 (Mesa View Dr.), 0.3 mile north of Halcyon Rd, 35.08333 -120.585, 76m
UCR
George K. Helmkamp 95-2--27 1995-06-20
United States, California, San Luis Obispo, Bear Creek Ranch, 6 miles southeast of Los Osos on Clark Valley Road, 35.27028 -120.76194, 400m
UCR
George K. Helmkamp 7477 2002-04-21
United States, California, San Luis Obispo, Santa Rosa Creek Road, 6.9 miles east of Cambria, 35.56389 -120.96389, 183m
UCR
George K. Helmkamp 18802 2012-04-21
United States, California, Nevada, junction of Lime Kiln Road and Wolf Road, 13.5 miles NNW (349°) of Auburn, 39.08806 -121.12389, 515m
UCR
George K. Helmkamp 18774 2012-04-17
United States, California, Yolo, along County Road 26, 1.4 miles west of its intersection with Road 89, c. 12 miles WSW of Woodland, 38.635 -121.99611, 65m
UCR
George K. Helmkamp 8287 2004-02-11
United States, California, San Luis Obispo, Nipomo Mesa, Pomeroy Rd, 1.1 mi N of Willow Rd., 35.05833 -120.525, 130m
UCR
George K. Helmkamp 18484 2011-11-28
United States, California, Placer, North Brewer Road, 0.2 mile north of Nicolaus Road, 8.7 mi. west of Lincoln, 38.89944 -121.45167, 29m
UCR
George K. Helmkamp 18844 2012-04-24
United States, California, El Dorado, beside CA-193 (Georgetown Rd.), 1.7 miles north of Rock Ridge Road, south of Kelsey, 38.77778 -120.82222, 555m
UCR
George K. Helmkamp 15992 2010-05-07
United States, California, Calaveras, Michel Road, 0.1 mile east of its junction with Mountain Ranch Road. 5.2 miles east (92.5°) of San Andreas, 38.19361 -120.58361, 512m
UCR
George K. Helmkamp 8951 2005-02-18
United States, California, Santa Barbara, Solomon Hills SE of Santa Maria along Dominion Road, 1.9 mi. SE of its junction with Clark Avenue, 34.84306 -120.33611, 259m
UCR
George K. Helmkamp 11901 2007-04-30
United States, California, El Dorado, hiking trail leaving from CA-49, 3.4 miles northwest of Placerville, 38.76 -120.84278, 511m
UCR
George K. Helmkamp 18674 2012-04-04
United States, California, Calaveras, along CA-26, 0.6 mile northeast of its junction with Paloma Road, 4.5 km SW (213°) of Mokelumne Hill, 38.26639 -120.73528, 489m
UCR
George K. Helmkamp 17283 2011-05-12
United States, California, Sutter, 0.1 mile southwest of village of Nicolaus on 1st Street, beside the Feather River, 38.90194 -121.58139, 9m
UCR
Joe Barth 938 2010-04-03
United States, California, San Diego, city of Chula Vista west of Fwy 805 and at base of south bank of Fwy 54, and east of 4th Ave, south of Sweetwater River. Drainage ditch just west of cul-de-sac at north end of Press Lane. Square: T10, 32.65639 -117.08461, 7m
UCR
George K. Helmkamp 14711 2009-05-14
United States, California, El Dorado, hiking trail starting north of CA-49, 3.5 miles north of CA-50 in Placerville, 38.76333 -120.85278, 511m
UCR
Joe Barth 1014 2010-05-16
United States, California, San Diego, city of Santee, around hill and area adjacent to baseball fields just north of San Diego River. West of Riverford Road, south of Mast Blvd, east of Ramsgate Way. Atlas Square: P13, 32.85769 -116.95619, 137m
UCR
George K. Helmkamp 6587 2001-04-29
United States, California, San Luis Obispo, Irish Hills. Clark Valley Rd, 4.2 miles south of Los Osos Valley Rd, east of Los Osos, 35.27117 -120.779, 274m
UCR
George K. Helmkamp 17062 2011-03-12
United States, California, San Joaquin, Collier Road, 0.2 mile east of its junction with Suttenfield Road, 9.4 mi. NE (50°) of Lodi, 38.22 -121.14444, 40m
UCR
George K. Helmkamp 14421 2009-03-19
United States, California, El Dorado, Rock Creek Road, 4.1 miles east of its junction with CA-193, 38.78222 -120.78639, 485m
NY
547959 R. D. Thomas 164615 2000-03-03
United States of America, Arkansas, Chicot Co., Along railroad tracks south of St. Mary's Street and west of Epstein Street in Lake Village; Section 3, 33.326326 -91.287524
NY
02550047 D. E. Atha 15447 2016-05-25
United States of America, New York, New York Co., Central Park. Tavern on the Green, west of the buildings, between service drive and parking lot. Between 66th and 67th Streets and between 7th and 8th Avenues, 40.772456 -73.978061, 26m
NY
2611189 M. Holtzoff s.n. 1913-06-17
United States of America, New York, Bronx Co., McLean Woods, 40.85 -73.866247
NY
2611191 N. Taylor 875 1909-07-28
United States of America, New York, Greene Co., 42.312639 -74.243677
NY
2611181 R. D. Thomas 161006 1999-05-27
United States of America, Arkansas, Lafayette Co., Waste area beside Ark. 360 and railroad tracks at Ark. 29, 33.183095 -93.633117
NY
2611187 M. C. Pace 434 2009-05-22
United States of America, New York, Suffolk Co., Froehlich Farm Preserve, Long Island. North of West Rouges Path (Road), along trail, 40.842258 -73.437317, 59m
NY
00199524 D. K. Christopher 176 2003-04-16
United States of America, California, Solano Co., UC Davis, Jepson Prairie Reserve. Near nature trail leading to vernal pools, 38.275083 -121.823817, 5m
SDSU
SDSU24314 John W. Brown 424 1995-05-10
United States, California, San Diego, Naval Weapons Station, Fallbrook Annex. West of north end of River Road. T.9S, R.4W, USGS Falbrook Quadrangle 117°16'W, 33°23'10°N., 33.386111 -117.266667, 91m
SDSU
SDSU12079 Zulueta, Rommel C. 26III95I 1995-03-26
United States, California, San Diego, 50m north of Richmond Drive, hill above Highland School., 43m
USCH:MAIN
USCH0033417 Howel, Carol 1226 1988-04-08
United States, Georgia, Butts, Indian Springs State Park, 33.24729 -83.932414, 150 - 250m
APCR
APCR005957 James Walter 94 1970-04-18
United States, Arkansas, Pope, Found in the area surrounding Crow Mountain.
MO
100604088 Anonymous s.n.
MO
100604823 Anonymous s.n.
Europe.
TAC
TAC02160 W. Simmons 39 2006-04-03
United States, Texas, Erath, Stephenville; Located in field just W. of 1098 Prairie Wind., 32.235172 -98.238444
TAC
TAC02161 Amanda Conolly 7 2004-04-07
United States, Texas, Erath, Stephenville; SE side of property near pecan tree, 0.32 km SE on Kight Avenue from Hwy 8. Property located in NE side of street., 32.225546 -98.216949
TAC
TAC05675 S. Harsley N-1773 2007-05-02
United States, Texas, Erath, Stephenville, Hunewell Ranch 2.6 mi E from the intersection of Hwy 67 and CR 182. GPS coordinates at gate: 32°12.901 N and 98°06.147 W., 32.215017 -98.10245
DEK
DEK00104744 Richard R. Halse 3405 1987-05-08
United States, Oregon, Benton, Benton Co, Oregon: Corvallis, in a pasture behind the OSU Dairy Barns, 4490 N.W. Harrison., 44.570298 -123.302418, 78m
GSW
00006610
USA, Louisiana, Caddo
MOR:herb.vasc
0094326MOR Maguilla, E 187EMS07 2007-04-00
Spain, Sevilla: Dos Hermanas, Campus Universidad Pablo de Olavide, alrededores campo de rugby, 23m
WVA
WVA-V-0077690 H. Ison Shreve 1937-05-20
United States, West Virginia, Berkeley
WVA
WVA-V-0077660 L. Pine 1967-05-22
United States, West Virginia, Jefferson, Shepherdstown
WILLI
85345 Nakahata, Eileen S 204 2016-06-10
United States, Virginia, Henrico, By pedestrian bridge, just northwest of Lee Bridge; Belle Isle, Unit 3, 37.52745574 -77.42456649
WILLI
83164 Baldwin, Patrick B 9190 2016-04-24
United States, Virginia, Isle of Wight, field in front of Hampton Inn and adjacent to Business Rt. 10 in Smithfield, 36.960785 -76.60399
DAV
DAV238363 Robert E. Preston 3356 2021-04-29
United States, California, Mendocino, Little Lake Valley, 1.6 mi E of Willits., 39.4065 -123.3124, 424m
DAV
DAV337564 N. Nicola 167 2002-04-05
United States, California, Yolo, Eastern foothills of inner North coast range, Berryessa Valley, approx. 3.5 miles as the crow flies east of Monticello dam, off of Hwy 128, north side of creek., 38.5 -122.04
DAV
DAV337514 Frederica Bowcutt 1740 1994-04-02
United States, California, Sacramento, Sacramento Co.: Delta Meadows River Park. Ca. 25 air miles S of Sacramento, 10 air miles W of Galt, and 1 air mile NE of Walnut Grove. Immed. E of Locke, in the Sacramento River Delta, N of the Delta Cross Channel. Along Railway Slough Road ca. half-way between end of road and park entrance, 0.85 miles N of entrance sign., 38.24007 -121.49437, 3m
DAV
DAV337568 Collin Edwards 1 2011-04-30
United States, California, El Dorado, El Dorado County: North of Cameron Park. Pine Hill Preserve. Kanaka Valley Unit. Kanaka Valley near main dirt road., 38.749444 -121.024444, 305m
DAV
DAV337558 Pamela G. Riley 107 2002-04-27
United States, California, Solano, Solano County: NE of the town of Vacaville on the NW side of Hwy 80, near the Leisure Town Rd. exit, S side of Vaca Valley Parkway, just W of its intersection with Leisure Town Rd., 38.387 -121.939667, 30m
DAV
DAV338028 Konshau Duman 282 2020-04-14
United States, California, Glenn, Bird Haven Ranch, Butte City, growing on the raised western bank of the rice field south of the workshop at the western edge of the property., 39.413247 -121.911202, 20m
DAV
DAV337553 Collector unknown 1694 1925-05-11
United States, California, Yolo, Yolo County: Davis., 38.553154 -121.751816
DAV
DAV337552 Perry S. Allen 132 1969-04-08
United States, California, Stanislaus, Stanislaus County: West of Tuolumne Dredge, 2 miles southwest of La Grange.
DAV
AHUC107218 L. G. Goar s.n. 1932-00-00
United States, California, County unknown, County and location unknown.
DAV
DAV337504 G. K. Helmkamp 10336 2006-05-09
United States, California, Amador, Amador County: Northern Sierra Nevada. Grass Valley Creek, 1.2 miles east of Pine Grove along Hwy. CA-88., 38.403611 -120.642222, 762m
DAV
DAV337528 R. Koch 1 1996-04-20
United States, California, Contra Costa, Contra Costa County: city of Danville, free space by Mt. Diablo State Park., 37.539997 -121.549997, 122m
DAV
AHUC107221 W. H. Nixon s.n. 1915-04-27
United States, California, Alameda, Alameda County: Around Haywards.
DAV
DAV163361 Carol W. Witham 961 2003-04-19
United States, California, Yolo, DFG Tule Ranch vernal pools. Approximately 8 miles southeast of Davis. Southeast of the junctions of County Roads 38 and 105., 38.4521 -121.6592, 5m
DAV
DAV337559 Malcolm A. Nobs 1547 1949-08-25
United States, California, San Mateo, San Mateo County: Sharp Park.
DAV
Shane Hanofee HAN-919 2024-03-16
United States, California, Nevada, Higgins Pond Preserve. Ragsdale Creek. Upslope from drainage from pond at intersection of Combie Rd. and Cascade Crossing Rd. 1/2 mi east of Higgins Corners., 39.043613 -121.086534, 427m