ASU:Plants
R.R. Halse 6712 2005-05-28
USA, Oregon, Curry, Siskiyou National Forest, along F.S. Road 33 where it crosses the Rogue River (southend of bridge) ca. 3 miles north of Agness, 42.592861 -124.060972, 63m
ASU:Plants
M. Denslow 1087 2003-05-07
USA, California, Los Angeles, Transverse Ranges; San Gabriel Mountain region: Glendora Ridge Motorway (1N26) west of intersection with Glendora Mountain Road (2N08), 34.17522 -117.8498, 762m
ASU:Plants
H.E. Ahles 57909 1963-06-09
United States, North Carolina, Orange County, Chapel Hill
ASU:Plants
G.K. Helmkamp 7416A 2002-04-19
United States, California, San Luis Obispo, 3.2 mi north of Piedras Blancas Lighthouse along CA Hwy 1, 35.70778 -121.30333, 15m
ARIZ
399216 Richard R. Halse 7623 2009-05-25
United States, Oregon, Jackson County, Jackson Co, Oregon: North of Shady Cove at the junction of State Hwy. 62 and State Hwy. 227., 42.64831 -122.80925, 441m
ARIZ
390145 G. K. Helmkamp 9715 2005-07-11
United States, California, El Dorado County, Northern Sierra Nevada Foothills; Pollock Pines area just S of US Highway 50 along Country Road #5 (Pollock Pines 7.5 Q., 38.771111 -120.574444, 1159m
ARIZ
409581 G. K. Helmkamp 15933 2010-04-23
United States, California, Placer County, Sierra Nevada Mountains Foothills: Salmon Falls Road at the Salmon Falls crossing of the American River (Pilot Hill 7.5'), 38.773889 -121.035, 157m
ARIZ
442747 Christine Perala 1093 1993-04-25
United States, California, Riverside, March Air Force Base [West March, NNW of Arnold Heights, south of Alessandro Blvd, west of 215 Fwy]., 33.9 -117.290278, 480m
ARIZ
419055 George K. Helmkamp 17323 2011-05-21
United States, California, Calaveras County, Northern Sierra Nevada Mountains Foothills: Ridge Road, 1.9 rd. miles southeast of CA-26, 1.8 air mi. southeast (130 degrees) of Glencoe., 38.3375 -120.56, 863m
ASC
ASC00099024 R. Halse 7457 2008-05-24
United States, Oregon, Jackson, Along Rock Creek Road 0.9 miles N of its junction with Old Sams Valley Road, NW of Medford, 42.50492 -122.96715, 490 - 490m
UCR
Mitch Provance 1777 1999-05-07
United States, California, San Bernardino, Santa Ana River Wash, 0.25 to 0.75 miles NE of the Riverside Ave. crossing [= North Main St. in Riverside Co.]; Santa Ana River Wash, 34.02972 -117.36111, 244m
UCR
George K. Helmkamp 19143 2012-06-06
United States, California, Amador, Panther Creek Road, 6.2 miles south of its junction with CA-88, 5.9 mi. SW (245°) of Bear River Reservoir dam, 38.50361 -120.35833, 1438m
UCR
George K. Helmkamp 10373 2006-05-11
United States, California, Nevada, Cedarsong Road, 0.1 mi. NE of Calif. Hwy 49 (NW of Nevada City), 39.27833 -121.08722, 637m
UCR
Jon P. Rebman 8860 2003-05-06
United States, California, San Diego, Rancho Jamul Ecological Reserve: west of Hwy. 94, south of Jamul & north of Otay Lakes Road; southwest part of reserve. Square: T15, 32.66222 -116.86917, 200m
UCR
George K. Helmkamp 16189 2010-05-31
United States, California, Amador, Sutter Creek-Volcano Road, 3.3 miles east of the village of Sutter Creek, 38.40861 -120.75028, 413m
UCR
George K. Helmkamp 9082 2005-03-08
United States, California, San Luis Obispo, Irish Hills. Crest of Prefumo Canyon Road, 5.2 miles west of Los Osos Valley Road, 35.25444 -120.77278, 409m
UCR
Steven A. Junak SCa--613 1998-05-01
United States, California, Los Angeles, Santa Catalina Island, along east side of Haypress Reservoir, 33.35278 -118.36111, 384m
UCR
Dan S. Cooper 413--65 2013-04-22
United States, California, Los Angeles, Griffith Park area, clay lens at end of Primera Ave, western edge of park, 34.13372 -118.34114, 244m
UCR
George K. Helmkamp 14785 2009-05-24
United States, California, El Dorado, Sand Ridge Road, 3.3 miles eat of the Cosumnes River and CA-49, 38.59833 -120.80111, 521m
UCR
Barbara L. Wilson 16251 2011-06-16
United States, California, Siskiyou, north edge of rest area on Hwy I-5 southbound, north of the town of Weed, 41.47561 -122.4575, 888m
UCR
Scott D. White 11084 2005-05-19
United States, California, San Bernardino, Yucaipa. Bajada below San Bernardino Mtns. east of Jefferson St, south of Carter Ave, and north of Wilson Creek. Proposed for development, 34.05833 -117.00833, 939m
UCR
George K. Helmkamp 15969 2010-05-07
United States, California, Calaveras, along CA-49, 0.4 mile north of its junction with CA-12, vicinity of San Andreas, 38.21833 -120.69889, 233m
UCR
Mitch Provance 4607 2005-05-27
United States, California, Riverside, Riverside, Sycamore Canyon, just east of the corner of Canyon Crest Drive and Via Vista, 33.94028 -117.33111, 381m
UCR
Scott D. White 12680 2009-05-06
United States, California, Los Angeles, San Gabriel River - West Fork, large fill slope on the south side of Cogswell Reservoir, 34.23472 -117.97083, 793m
UCR
Mark A. Elvin 4160 2005-04-06
United States, California, San Diego, SW side along tributary to Otay River, NE of O’Neal Canyon, 32.59722 -116.92806, 168m
UCR
George K. Helmkamp 14526 2009-04-21
United States, California, El Dorado, junction of Rock Creek Road and CA-193, north of Chili Bar and the South Fork of the American River, 38.77361 -120.81361, 390m
UCR
Jon P. Rebman 32804 2017-03-29
United States, California, San Diego, Fallbrook Naval Weapons Station: west of Fallbrook; South Magazine, south of Ammunition Road; east-central part of station; along perimeter road and adjacent riparian area just west of a plant nursery. Square: D7, 33.34631 -117.25411, 187m
UCR
George K. Helmkamp 5412 2000-04-20
United States, California, San Luis Obispo, southwest of San Luis Obispo. Road crest between See Canyon Road and Prefumo Canyon Road, 35.26167 -120.775, 320m
UCR
George K. Helmkamp 16210 2010-06-04
United States, California, Sonoma, Mark West Springs Road, 1.7 rd. miles east of US-101, 2.5 air miles NE (75°) of Fulton, 38.50611 -122.72528, 63m
UCR
R.G. Swinney 17276 2015-05-02
United States, California, Los Angeles, San Dimas Experimental Forest, Tanbark Flat, helipad and brush dump area, 34.20556 -117.75778, 817m
UCR
George K. Helmkamp 17607 2011-06-17
United States, California, Amador, junction of CA-26 and Joyce Road, northwest of the Hwy 26 bridge over North Fork Mokelumne River, 0.78 mi. SSW (187°) of Pioneer, 38.42056 -120.57361, 762m
UCR
George K. Helmkamp 13345 2008-04-30
United States, California, El Dorado, junction of Meadow Brook and Bear Creek Roads at Traverse Creek, south of Georgetown, 38.8725 -120.81861, 674m
UCR
Suzanne Bell 368 1999-05-11
United States, California, San Diego, on north side of Lake Wohlford, 33.17167 -117.00361
UCR
George K. Helmkamp 11767 2007-04-20
United States, California, El Dorado, 2.2 miles north of US-50 on Bass Lake Road, overlooking Bass Lake; between El Dorado Hills and Cameron Park, 38.67694 -120.01833, 384m
UCR
Scott D. White 4994 1997-04-16
United States, California, San Bernardino, Cajon Wash, just south of Hwy 138 crossing, 34.30833 -117.475, 884m
UCR
Scott D. White 6226 1998-03-23
United States, California, Ventura, near junction of Crestview and La Marina Drive. Ridgetop and slopes c. 0.35 air mile north of Hwy 101 and 0.8 mile west of Las Posas Road, 34.225 -119.08333, 61m
UCR
Mitch Provance 293 1998-03-31
United States, California, San Bernardino, NE “Pyrite Canyon”, c. 0.5 km NW of peak 1538.; Jurupa Mountains, 34.03583 -117.46028, 366m
UCR
Scott D. White 6208 1998-03-16
United States, California, Orange, University of California, Irvine campus. Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and new freeway (Bonita Canyon)., 33.63333 -117.85, 37m
UCR
George K. Helmkamp 16031 2010-05-14
United States, California, El Dorado, Happy Valley Road, 1.1 mi. NE (69°) of Somerset, just west of the bridge over the Cosumnes River, 38.65361 -120.66611, 544m
UCR
Jon P. Rebman 28121 2014-04-30
United States, California, San Diego, Camp Pendleton; State Park Lease area, northwest portion of base, west of the intersection of Cristianitos Road and Talega Road, along Cristianitos Creek. Atlas square: B2, 33.45 -117.571, 53m
UCR
A.C. Sanders 29762 2005-04-26
United States, California, Los Angeles, Santa Clarita, south of Plum Canyon at end of Canyon Crest Dr, NW of mouth of Mint Canyon, 34.43639 -118.46278, 488m
UCR
Steven A. Junak SCa--233 1996-05-01
United States, California, Los Angeles, Santa Catalina Island. Along road to Wrigley Reservoir, just off main road, 33.35239 -118.35136, 412m
UCR
George K. Helmkamp 16455B 2010-07-06
United States, California, El Dorado, Silver Fork Road, 1.9 miles south of its junction with US-50 in Kyburz, 38.75861 -120.27639, 1473m
UCR
A.C. Sanders 30336 2005-06-02
United States, California, San Diego, Palomar Mtn, Plaisted Creek Ecological Reserve, NE of Rincon & Pauma Valley, between Plaisted Cr. and Hwy 76, SE lobe of reserve near residences abandoned in 1996, 33.30222 -116.90972, 701m
UCR
A.C. Sanders 23970 2001-04-06
United States, California, Riverside, Temecula, Long Canyon area west of Del Rey Rd, hills on both sides of gas pipeline route, 33.52528 -117.12389, 366m
UCR
George K. Helmkamp 11712 2007-03-25
United States, California, Placer, Forest Hill Road at the junction with the unnamed road to Lake Clementine, 38.93528 -121.00333, 457m
UCR
George K. Helmkamp 15933 2010-04-23
United States, California, El Dorado, Salmon Falls Road at the Salmon Falls crossing of the American River, 38.77389 -121.035, 157m
UCR
George K. Helmkamp 20472 2013-05-03
United States, California, Placer, Mosquito Ridge Road, 1.1 miles south of Forest Hill Road, 39.01667 -120.80694, 962m
UCR
George K. Helmkamp 11719 2007-03-31
United States, California, Nevada, along CA-49 at Lime Kiln Rd, 0.6 mi north of Cherry Creek Acres, 39.10972 -121.07833, 549m
UCR
George K. Helmkamp 13507 2008-05-29
United States, California, Calaveras, 0.6 mile southeast of CA-4 at Red Apple, on road to Darby Knob, 38.17528 -120.38139, 991m
UCR
A.C. Sanders 35035 2008-04-22
United States, California, Orange, Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado, 33.7207 -117.66953, 366m
UCR
George K. Helmkamp 11798 2007-04-23
United States, California, Amador, along Calif. Hwy 124, 0.25 mile from its junction with Hwy 16, 38.45222 -120.87306, 252m
UCR
George K. Helmkamp 15907 2010-04-23
United States, California, Placer, along Salmon Falls Road, at Miners Valley Rd, 4.5 miles south of junction with CA-49 at Pilot Hill, 38.78833 -121.02278, 287m
UCR
George K. Helmkamp 12114 2007-05-26
United States, California, Nevada, Tyler Foote Crossing Road, 1.0 mile northeast of CA-49, 39.33444 -121.09861, 622m
UCR
George K. Helmkamp 14754 2009-05-20
United States, California, Colusa, along CA-16, 1.8 miles north of the Yolo County line, 38.95722 -122.34278, 271m
UCR
George K. Helmkamp 11816 2007-04-23
United States, California, Amador, junction of Tonzi Road and Calif. Hwy 124 about 7 miles north of Ione, 38.40611 -120.89389, 229m
UCR
Craig D. Thomsen 2143 2000-04-12
United States, California, Colusa, Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 intersection, milepost 3.00, 39.01128 -122.36708, 310m
UCR
Jon P. Rebman 27816 2014-04-08
United States, California, San Diego, Camp Pendleton, northern portion of base; Training Area Delta, along a canyon north of Case Springs Road near the base boundary, northwest of Margarita Peak and north of Case Springs Lake. Atlas Square: B4, 33.46289 -117.41911, 678m
UCR
George K. Helmkamp 16072 2010-05-17
United States, California, El Dorado, Pine Hill Road, 0.8 mile above the junction with Bertana Court; edge of Pine Hill Ecological Reserve, 38.72028 -120.99, 610m
UCR
A.C. Sanders 35046 2008-04-22
United States, California, Orange, Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map, 33.71885 -117.6782, 427m
UCR
George K. Helmkamp 10301 2006-05-06
United States, California, Amador, along Calif. Hwy 49, 0.3 mile south of Drytown, 38.43778 -120.85583, 226m
UCR
George K. Helmkamp 17156 2011-04-10
United States, California, Placer, along Riosa Road at the east edge of the village of Sheridan, 38.98472 -121.36806, 41m
UCR
George K. Helmkamp 14799 2009-05-24
United States, California, El Dorado, Sand Ridge Road, 3.0 miles west of its junction with Bucks Bar Road, 38.62833 -120.73722, 640m
UCR
Steve Boyd 11660 2006-05-11
United States, California, Los Angeles, Alluvial fan below San Antonio Canyon at southern base of the range, just west of Los Angeles/San Bernardino County line along north margin of the west-bound 210 Freeway at Monte Vista/Baseline Ave off-ramp., 34.12472 -117.69361, 488m
UCR
Mark A. Elvin 4124 2005-04-02
United States, California, San Diego, E side of Otay Mountain; head of Mine Canyon near old homestead/house; south of road to Sycamore Canyon, 32.61 -116.78333, 473m
UCR
Richard R. Halse 8803 2013-05-26
United States, Oregon, Jackson, along Thompson Creek Road, National Forest Road 10, c. 6.3 mi south of its junction with State Hwy 238 in Applegate, 42.17564 -123.22689, 528m
UCR
George K. Helmkamp 17323 2011-05-21
United States, California, Calaveras, Ridge Road, 1.9 road miles southeast of CA-26, 1.8 air mi. southeast (130°) of Glencoe, 38.3375 -120.56, 863m
UCR
George K. Helmkamp 16090 2010-05-22
United States, California, El Dorado, Perry Creek Road, 0.1 mile south of its junction with Slug Gulch Road, 0.4 mi. northeast of Fairplay, 38.59528 -120.65361, 677m
UCR
John Wear s.n. 1994-06-09
United States, California, San Bernardino, East Highlands, San Andreas Ranch at the mouth of City Creek Canyon, north of Highland Ave, east of Hwy 330 and SE of San Bernardino Nat. Forest, west of agricultural areas, 34.13806 -117.18972, 438m
UCR
R.G. Swinney 10373 2009-04-16
United States, California, Los Angeles, Duarte, lower Van Tassel fire road, Van Tassel Canyon, 34.15722 -117.93889, 439m
UCR
Christine Perala 1093 1993-04-25
United States, California, Riverside, March Air Force Base [West March, NNW of Arnold Heights, south of Alessandro Blvd, west of 215 Fwy], 33.9 -117.29028, 480m
UCR
Teresa Nieto 11 2005-04-24
United States, California, Riverside, Wildomar, Menifee Hills, south of Bundy Canyon Rd. c. 1 mile from Harvest Way East, north of Felswood Rd., 33.63889 -117.225, 518m
UCR
R.G. Swinney 17580 2015-07-22
United States, California, Los Angeles, Horse Cyn. Saddle, jct. of Glendora Ridge Rd. and Glendora Mt. Road, 34.20417 -117.80889, 1012m
UCR
George K. Helmkamp 20384 2013-04-24
United States, California, Amador, Along CA-26 (Red Corral/West Point-Pioneer Rd.), 2.8 miles southeast of its junction with CA-88, 38.42111 -120.57889, 905m
UCR
George K. Helmkamp 11824 2007-04-26
United States, California, Amador, along Calif. E-16, 0.7 mile south of River Pines, 38.53583 -120.74667, 610m
UCR
Noah B. Teller 027 2017-06-03
United States, California, San Bernardino, between Jenks Lake and the Barton Flat Visitor Center, 34.16778 -116.88361, 1520m
UCR
R.G. Swinney 13303 2010-06-21
United States, California, Los Angeles, 0.2 miles east of Wilson Canyon Saddle, jct. of Santa Clara Truck Trail and Los Pinetos Spring Trail, on south side of Truck Trail, 34.355 -118.44556, 951m
UCR
A.C. Sanders 26951 2003-06-18
United States, California, Los Angeles, around large sandstone monolith (visible for miles) along private crest road, NW of head of Sulphur Canyon, 34.35 -118.6275, 1037m
UCR
George K. Helmkamp 10126 2006-04-06
United States, California, Placer, NE edge of Sacramento metropolitan area; Sierra College Road and King Ranch Road SSE of Rocklin, 38.76833 -121.21806, 122m
UCR
George K. Helmkamp 11834 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 4912 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 4248 1998-07-01
United States, California, San Luis Obispo, Irish Hills, Prefumo Canyon Road, 5.2 miles southwest of Los Osos Valley Road, 35.24333 -120.77, 244m
UCR
George K. Helmkamp 2197 1997-06-26
United States, California, Mendocino, two miles north of Westport between US-1 and the coast; North Coast, 39.6 -123.785, 30m
UCR
T.B. Salvato 12143 2023-05-09
United States, California, Riverside, foothills, east slope. Wildomar, south of Tranquil Lane and west of Sweet Nectar Rd, west of Grand Ave, 33.60889 -117.305, 490m
UCR
George K. Helmkamp 22810 2014-04-23
United States, California, Placer, Spring Garden Road, at the north side of its junction with Foresthill Road, 8.4 km west of Foresthill, 39.00167 -120.90722, 720m
UCR
George K. Helmkamp 14818 2009-05-28
United States, California, Nevada, along CA-49, 2.0 miles north of its junction with CA-20, north of Nevada City, 39.26444 -121.05139, 780m
UCR
George K. Helmkamp 9506A 2005-05-17
United States, California, San Luis Obispo, 2.5 miles WNW of San Simeon; along Calif. Highway 1, 35.65278 -121.24194, 11m
UCR
G.R. Ballmer s.n. 2011-06-08
United States, California, Fresno, Kings Canyon, Hwy 180 in vicinity of Boyden Cavern, 36.82444 -118.83, 960m
UCR
Pam Wright s.n. 2003-05-09
United States, California, San Joaquin, 1 mile south of Collegeville, southeast of Stockton and east of French Camp, off Littlejohn Creek immediately west of Jack Tone Road and south of BNSF railroad line, 55 acre Mariposa mitigation site (created in 2000), 37.89 -121.1475, 17m
UCR
George K. Helmkamp 13297 2008-04-17
United States, California, Placer, about 0.2 mile north of CA-193 on Fowler Road, about 6 miles east of Lincoln, 38.88972 -121.21889, 93m
UCR
George K. Helmkamp 14677 2009-05-11
United States, California, Placer, Driver’s Flat Road 0.8 mile south of its junction with Forest Hill Road, c. 8 miles (air) NE of Auburn, 38.96667 -120.95167, 517m
UCR
George K. Helmkamp 7416A 2002-04-19
United States, California, San Luis Obispo, 3.2 miles north of Piedras Blancas Lighthouse along CA Hwy 1, 35.70778 -121.30333, 15m
UCR
Michael Denslow 1087 2003-05-07
United States, California, Los Angeles, Glendora Ridge Motorway (1N26) west of intersection with Glendora Mountain Road (2N08), 34.17522 -117.84981, 762m
UCR
R.G. Swinney 17040 2015-03-31
United States, California, Los Angeles, Pasadena, Eaton Canyon Natural Area and Nature Center, 1750 N. Altadena Drive, bottom of Eaton Canyon, 34.17556 -118.09528, 293m
UCR
R.G. Swinney 18167 2016-04-18
United States, California, Los Angeles, San Dimas Experimenal Forest. North of LaVerne, Johnstone Peak summit, 34.16028 -117.79889, 968m
UCR
R.G. Swinney 14991 2011-06-06
United States, California, Los Angeles, Charlton Flats (= Pine Flats), 13.8 miles east of jct. of Angeles Crest and Angeles Forest highways, 34.29667 -118.01278, 1616m
UCR
George K. Helmkamp 22643 2014-03-21
United States, California, Placer, Sheridan, Riosa Road at the west side of its junction with old CA-65, 38.98083 -121.37861, 33m
UCR
Jon P. Rebman 7360 2001-05-10
United States, California, San Diego, Between Guatay and Pine Valley: near Pine Creek Trailhead, SW along the trail to Pine Creek Wilderness, west of Pine Valley (Square: P21), 32.83528 -116.545, 780m
UCR
R.G. Swinney 1557 1990-03-24
United States, California, Los Angeles, South Hills, a ridge on the south side of the city of Glendora. East end of High Country Drive, 34.1225 -117.83861, 305m
UCR
George K. Helmkamp 17299 2011-05-19
United States, California, Amador, NW of Pardee Reservoir, 0.1 mile east of Rock Creek Road on a gravel spur leading to houses, 4.65 mi. SW (220°) of Jackson, 38.29667 -120.82861, 280m