Search Results — 1097 specimen records retrieved (1090 records with coordinates)
Results for search: County=RIVERSIDE; Source=All; Collector=Helmkamp;   
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC114542  Cyperus eragrostis G. Helmkamp; E. A. Helmkamp 1998-8-17 4446 Riverside Santa Ana Mts: San Juan Cyn along the Ortega Hwy (CA-74) beside the Orange Co. line. 502 Comment
  CAS-BOT-BC137660  Aristida adscensionis G. Helmkamp; E. Helmkamp 1998-1-17 2536 Riverside Box Canyon northeast of Mecca and 3.5 miles south of Shaver's Well. 243 Comment
  CAS-BOT-BC137661  Aristida adscensionis George Helmkamp 1995-3-16 s.n. Riverside Colorado Desert. Below slopes of Coxcomb Mountains, west of Rice Road, 10.3 miles northeast of Desert Center. 198 Comment
  CAS-BOT-BC160579  Chylismia claviformis subsp. aurantiaca G. Helmkamp; E. Helmkamp 1998-1-17 2531 Riverside Coachella Valley; Bob Hope Dr. 0.9 mi. S of I-10 42 Comment
  CAS-BOT-BC177103  Cryptantha barbigera G. K. Helmkamp 1984-5-2 D- 26 Riverside Little San Bernardino Mountains: Big Morongo Canyon, 3 - 3.5 mi below the caretaker's house at the Big Morongo Preserve 610 Comment
  CAS-BOT-BC213600  Eragrostis mexicana subsp. mexicana G. Helmkamp 1997-11-1 2518 Riverside Bermuda Dunes, 41st St. & Sparky, just E of Washington and S of I-10 30 Comment
  CAS-BOT-BC235772  Keckiella cordifolia G. K. Helmkamp; E. A. Helmkamp 1998-8-17 4444 Riverside Santa Ana Mtns.: San Juan Cyn along the Ortega Hwy (Ca-74) beside the Orange Co. line 503 Comment
  CAS-BOT-BC356344  Psathyrotes ramosissima G. Helmkamp; E. Helmkamp 1998-1-17 2534 Riverside Box Canyon northeast of Mecca and 3.5 miles south of Shaver's Well 243 Comment
  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
  CAS-BOT-BC419631  Eschscholzia parishii G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2735 Riverside Colorado Desert: Chuckwalla Mts. 10.6 mi SW of Chuckwalla Valley Rd. on Graham Pass Road Comment
  CLARK-A1045-100  Solanum xanti var. intermedium George K. Helmkamp 1978-5-5 Riverside Lake Perris State Recreation Area rocky slope near south shore of Lake Perris; Perris 7.5'Q Comment
  CLARK-A1045-102  Cryptantha muricata var. jonesii George K. Helmkamp 1977-3-20 Riverside San Jacinto Mountains flats above Deep Canyon; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-103  Cryptantha pterocarya George K. Helmkamp 1977-3-20 Riverside San Jacinto Mountains flats above Deep Canyon; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-104  Arctostaphylos glauca George K. Helmkamp 1977-3-20 Riverside San Jacinto Mountains flats above Deep Canyon; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-105  Stillingia linearifolia George K. Helmkamp 1977-3-20 Riverside San Jacinto Mountains flats above Deep Canyon; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-106  Psoralea californica George K. Helmkamp 1978-5-20 Riverside Pinyon Flats Campground southwest 1/4 Palm Desert 15'Q Comment
  CLARK-A1045-107  Dyssodia porophylloides George K. Helmkamp 1977-3-20 Riverside Deep Canyon area above Deep canyon; Palm Desert 15'Q Comment
  CLARK-A1045-108  Lotus rigidus George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above Deep canyon; Palm Desert 15'Q Comment
  CLARK-A1045-109  Prunus fremontii George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-110  Monardella linoides George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep canyon; Palm Desert 15'Q Comment
  CLARK-A1045-111  Eriastrum densifolium subsp. elongatum George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep canyon; Palm Desert 15'Q Comment
  CLARK-A1045-112  Salvia apiana George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep canyon; Palm Desert 15'Q Comment
  CLARK-A1045-113  Lotus rigidus George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above edge of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-114  Haplopappus linearifolius George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-115  Penstemon antirrhinoides George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-116  Astragalus palmeri George K. Helmkamp 1978-4-1 Riverside Pinyon Flat Pinyon Pine[s] area, [flats] above Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-117  Astragalus palmeri George K. Helmkamp 1978-4-1 Riverside Pinyon Flat Pinyon Pine[s] area, [flats] above Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-118  Pterostegia drymarioides George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-119  Pectocarya platycarpa George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-120  Antirrhinum filipes George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-121  Cryptantha utahensis George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-122  Eriogonum pusillum George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-123  Parietaria floridana George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-124  Caulanthus cooperi George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-125  Sarcostemma hirtellum George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-126  Lepidium dictyotum George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-127  Oenothera micrantha var. exfoliata George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-128  Plantago insularis George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-129  Calandrinia ambigua George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-130  Lotus tomentellus George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-1309  Heterocodon rariflorum George K. Helmkamp 1979-6-6 Riverside Wolf Valley Highway S16 south of Murrieta (road to Pala), mile 5; Pechanga 7.5'Q Comment
  CLARK-A1045-1310  Heterocodon rariflorum George K. Helmkamp 1979-6-6 Riverside Wolf Valley Highway S16 south of Murrieta (road to Pala), mile 5; Pechanga 7.5'Q Comment
  CLARK-A1045-132  Astragalus palmeri George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-133  Arabis perennans George K. Helmkamp 1977-5-20 Riverside Deep Canyon mouth of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-135  Cryptantha utahensis George K. Helmkamp 1977-3-20 Riverside Deep Canyon edge of sandy wash at base of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-136  Galium stellatum George K. Helmkamp 1977-3-20 Riverside Deep Canyon rocky ledge of dry wash in Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-137  Euphorbia polycarpa George K. Helmkamp 1978-4-1 Riverside Deep Canyon by University of California Reserve System Boyd research station; Palm Desert 15'Q Comment
  CLARK-A1045-138  Cryptantha intermedia George K. Helmkamp 1978-4-1 Riverside Deep Canyon rocky flat by University of California Reserve System Boyd research station; Palm Desert 15'Q Comment
  CLARK-A1045-139  Pectocarya platycarpa George K. Helmkamp 1978-4-1 Riverside Deep Canyon rocky flat by University of California Reserve System Boyd research station; Palm Desert 15'Q Comment
  CLARK-A1045-140  Nemacladus rubescens George K. Helmkamp 1978-4-25 Riverside Deep Canyon rocky terrace; Palm Desert 15'Q Comment
  CLARK-A1045-141  Pleurocoronis pluriseta George K. Helmkamp 1977-3-20 Riverside Deep Canyon rocky wall; Palm Desert 15'Q Comment
  CLARK-A1045-142  Pholistoma membranaceum George K. Helmkamp 1978-4-1 Riverside Deep Canyon west edge of Deep Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-143  Filago arizonica George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert 15'Q Comment
  CLARK-A1045-144  Lycium andersonii George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert 15'Q Comment
  CLARK-A1045-145  Chorizanthe brevicornu George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert, 15' Q; Blackburn Canyon, 7.5' Q Comment
  CLARK-A1045-146  Eriastrum diffusum George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert 15'Q Comment
  CLARK-A1045-147  Cryptantha intermedia George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert 15'Q Comment
  CLARK-A1045-148  Ditaxis neomexicana George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert 15'Q Comment
  CLARK-A1045-149  Encelia farinosa George K. Helmkamp 1978-4-1 Riverside Deep Canyon Palm Desert 15'Q Comment
  CLARK-A1045-150  Ephedra californica George K. Helmkamp 1977-3-20 Riverside Cabazon Cabazon 7.5'Q Comment
  CLARK-A1045-151  Downingia concolor subsp. brevior George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains beside road; vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-152  Cerastium viscosum George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pools near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-153  Plagiobothrys undulatus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pools near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-154  Plagiobothrys undulatus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pools near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-155  Microseris elegans George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-156  Navarretia prostrata George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-157  Downingia cuspidata George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-158  Mimulus floribundus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-159  Mimulus pilosus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-160  Marsilea vestita George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-161  Ranunculus occidentalis George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-162  Downingia concolor subsp. brevior George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-163  Sisyrinchium bellum George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near creek; Wildomar 7.5' Q Comment
  CLARK-A1045-164  Trifolium amplectens George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-165  Plagiobothrys nothofulvus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains head of De Luz Creek; Wildomar 7.5'Q Comment
  CLARK-A1045-166  Orthocarpus densiflorus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-167  Linanthus androsaceus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5' Q Comment
  CLARK-A1045-168  Linanthus androsaceus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5' Q Comment
  CLARK-A1045-169  Filago arizonica George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-170  Camissonia bistorta George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-171  Trifolium amplectens George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains vernal pools; Wildomar 7.5'Q Comment
  CLARK-A1045-172  Sisyrinchium bellum George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains vernal pools; Wildomar 7.5' Q Comment
  CLARK-A1045-173  Orthocarpus densiflorus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains vernal pools; Wildomar 7.5'Q Comment
  CLARK-A1045-174  Psilocarphus brevissimus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains along road; drying mud of vernal pools; Wildomar 7.5'Q Comment
  CLARK-A1045-175  Muilla maritima George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5' Q Comment
  CLARK-A1045-176  Phalaris caroliniana George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-177  Phalaris caroliniana George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-178  Downingia cuspidata George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-179  Downingia cuspidata George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-180  Brodiaea filifolia George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5' Q Comment
  CLARK-A1045-181  Salvia dorrii George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-182  Marah fabacea var. agrestis George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-183  Phacelia cicutaria subsp. hispida George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-184  Psilocarphus brevissimus George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-185  Plagiobothrys bracteatus George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-186  Lupinus sparsiflorus subsp. inopinatus George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains end of road; Wildomar 7.5'Q Comment
  CLARK-A1045-187  Lomatium utriculatum George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains end of road; Wildomar 7.5'Q Comment
  CLARK-A1045-188  Psilocarphus tenellus George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains Southern Oak Woodland; Wildomar 7.5'Q Comment
  CLARK-A1045-189  Micropus californicus George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains Southern Oak Woodland; Wildomar 7.5'Q Comment
  CLARK-A1045-190  Plagiobothrys tenellus George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains Southern Oak Woodland; Wildomar 7.5'Q Comment
  CLARK-A1045-191  Sanicula crassicaulis George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains Southern Oak Woodland; Wildomar 7.5'Q Comment
  CLARK-A1045-205  Stephanomeria pauciflora George K. Helmkamp 1979-4-29 Riverside Windy Point Whitewater 7.5'Q Comment
  CLARK-A1045-206  Acamptopappus sphaerocephalus George K. Helmkamp 1979-4-29 Riverside Windy Point Whitewater 7.5'Q Comment
  CLARK-A1045-207  Lupinus bicolor subsp. marginatus George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-208  Cryptantha angustifolia George K. Helmkamp 1979-4-18 Riverside Indio Hills dry wash; ; Lost Horse Mtn. 15'Q 304 Comment
Read comments
Feb 13 2019
  CLARK-A1045-209  Pectocarya recurvata George K. Helmkamp 1979-4-18 Riverside Indio Hills along Dillon Road; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-210  Camissonia pallida George K. Helmkamp 1979-4-18 Riverside Indio Hills along Dillon Road; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-211  Phacelia campanularia George K. Helmkamp 1979-4-18 Riverside Indio Hills along Dillon Road; Lost Horse Mtn. 15'Q 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
  CLARK-A1045-213  Eriogonum trichopes George K. Helmkamp 1979-4-18 Riverside Indio Hills Dillon Road at dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-214  Galium stellatum subsp. eremicum George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; rocky area at base of dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-215  Bebbia juncea George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-216  Sarcostemma hirtellum George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-217  Pleurocoronis pluriseta George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-218  Pleurocoronis pluriseta George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-219  Nemacladus glanduliferus George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-220  Cryptantha angustifolia George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-221  Cryptantha barbigera George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; dry wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-222  Cryptantha utahensis George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; sandy wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-223  Monoptilon bellioides George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; bottom of wash; Lost Horse Mtn. 15'Q Comment
  CLARK-A1045-224  Panicum urvilleanum George K. Helmkamp 1978-4-1 Riverside Coachella Valley .5 miles south of Interstate highway 10; sandy slope along Bob Hope Drive; Cathedral City 7.5'Q Comment
  CLARK-A1045-225  Franseria dumosa George K. Helmkamp 1978-4-1 Riverside Palm Springs north edge of town; Palm Springs 7.5'Q Comment
  CLARK-A1045-226  Muhlenbergia microsperma George K. Helmkamp 1979-3-18 Riverside Shavers Valley 3 miles south of Interstate highway 10 on Cottonwood Springs Road [Box Canyon Road]; Cottonwood Spring 15'Q Comment
  CLARK-A1045-227  Filago arizonica George K. Helmkamp 1978-4-1 Riverside Cabazon north of Interstate highway 10; disturbed soil; Cabazon 7.5'Q Comment
  CLARK-A1045-228  Sisymbrium erysimoides George K. Helmkamp 1978-3-27 Riverside Box Springs Mountains south base of mountain; Riverside East 7.5'Q Comment
  CLARK-A1045-229  Senecio mohavensis George K. Helmkamp 1979-3-11 Riverside Painted Canyon north of Mecca; Mecca 7.5'Q Comment
  CLARK-A1045-230  Centaurium venustum George K. Helmkamp 1979-3-11 Riverside Mecca south of Mecca, where Lincoln Street crosses the Whitewater River; dry, saline mud flat; Mecca 7.5'Q Comment
  CLARK-A1045-231  Crassula erecta George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-232  Lupinus sparsiflorus George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-233  Lupinus sparsiflorus George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-234  Senecio vulgaris George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-235  Pectocarya platycarpa George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-236  Amsinckia intermedia George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-237  Calyptridium monandrum George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-238  Lasthenia chrysostoma George K. Helmkamp 1978-4-1 Riverside Whitewater junction of Interstate highway 10 and Verbenia Avenue; Whitewater 7.5'Q Comment
  CLARK-A1045-280  Mimulus fremontii George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along road (North Fork of the San Jacinto River); moist, gravelly slope; chaparral; ; Lake Fulmor 7.5'Q 1828 Comment
  CLARK-A1045-282  Mimulus guttatus George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains seep along road, half way between North Fork of the San Jacinto River and the summit to the west; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-283  Mimulus diffusus George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along road; yellow pine forest just west of North Fork of the San Jacinto River; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-284  Chaenactis artemisiifolia George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains middle of road to Oak Spring off San Jacinto Ridge Road; ; Lake Fulmor 7.5'Q 1066 Comment
  CLARK-A1045-285  Chaenactis artemisiifolia George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains middle of road to Oak Spring off San Jacinto Ridge Road; ; Lake Fulmor 7.5'Q 1066 Comment
  CLARK-A1045-286  Penstemon centranthifolius George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains Lake Fulmor 7.5'Q Comment
  CLARK-A1045-287  Cryptantha microstachys George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along San Jacinto Ridge Road at Oak Spring turnoff; chaparral; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-288  Lasthenia coronaria George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along San Jacinto Ridge Road at Oak Spring turnoff; chaparral; ; Lake Fulmor 7.5'Q 914 Comment
  CLARK-A1045-289  Stylocline gnaphaloides George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along San Jacinto Ridge Road at Oak Spring turnoff; ; Lake Fulmor 7.5'Q 1066 Comment
  CLARK-A1045-290  Collinsia heterophylla George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along San Jacinto Ridge Road at Oak Spring turnoff; chaparral; ; Lake Fulmor 7.5'Q 1066 Comment
  CLARK-A1045-291  Clarkia similis George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains at State Highway 74; chaparral; ; Hemet 15'Q 609 Comment
  CLARK-A1045-292  Chorizanthe coriacea George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains Bee Canyon Road; chaparral; ; Hemet 15'Q 609 Comment
  CLARK-A1045-293  Eriophyllum multicaule George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains Bee Canyon Road; chaparral; ; Hemet 15'Q 609 Comment
  CLARK-A1045-294  Crossosoma bigelovii George K. Helmkamp 1977-5-20 Riverside San Jacinto Mountains .5 mile up from UC Research Station; rocky wall at base of Canyon; Palm Desert 15'Q Comment
  CLARK-A1045-297  Chorizanthe brevicornu George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q 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
  CLARK-A1045-299  Cryptantha utahensis George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q Comment
  CLARK-A1045-300  Crepis capillaris George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q Comment
  CLARK-A1045-301  Eriophyllum wallacei George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q Comment
  CLARK-A1045-302  Cryptantha utahensis George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q Comment
  CLARK-A1045-303  Nemacladus pinnatifidus George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-304  Caulanthus cooperi George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-305  Lupinus arizonicus George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-306  Lepidium virginicum George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-307  Nicotiana trigonophylla George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-308  Phacelia crenulata var. ambigua George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  CLARK-A1045-309  Chorizanthe leptotheca George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains Murrieta 7.5'Q Comment
  CLARK-A1045-310  Chorizanthe leptotheca George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains Murrieta 7.5' Q Comment
  CLARK-A1045-311  Stylocline gnaphaloides George K. Helmkamp 1978-6-1 #2 Riverside Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q 487 Comment
  CLARK-A1045-312  Navarretia atractyloides George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains near south southeast of Mesa de Burro; vernal pool; Murrieta 7.5' Q Comment
  CLARK-A1045-313  Eleocharis geniculata George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near [south southeast of] Mesa de Burro; Murrieta 7.5'Q Comment
  CLARK-A1045-314  Habenaria sparsiflora George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-315  Mimulus pilosus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains bank of creek at end of Road; Wildomar 7.5'Q Comment
  CLARK-A1045-316  Mimulus puniceus George K. Helmkamp 1978-6-1 #1 Riverside Santa Ana Mountains near Murietta; ; Wildomar 7.5'Q 426 Comment
  CLARK-A1045-317  Eleocharis bella George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near headwaters of creek; Wildomar 7.5'Q Comment
  CLARK-A1045-318  Orthocarpus densiflorus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  CLARK-A1045-319  Phacelia distans George K. Helmkamp 1977-3-20 Riverside Morongo Indian Reservation edge of Hathaway Creek, west of the Malki Museum; Cabazon 7.5'Q Comment
  CLARK-A1045-320  Sphaeralcea ambigua subsp. rugosa George K. Helmkamp 1977-3-20 Riverside Morongo Indian Reservation edge of hills, north of the Malki Museum; ; Cabazon 7.5' Q Comment
  CLARK-A1045-321  Phacelia distans George K. Helmkamp 1977-3-20 Riverside Morongo Indian Reservation edge of hills, north of the Malki Museum; ; Cabazon 7.5'Q Comment
  CLARK-A1045-322  Tetradymia comosa George K. Helmkamp 1977-3-20 Riverside Morongo Indian Reservation edge of hills, north of the Malki Museum; ; Cabazon 7.5'Q Comment
  CLARK-A1045-323  Baccharis sergiloides George K. Helmkamp 1977-3-20 Riverside Cabazon edge of dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-324  Cryptantha micrantha George K. Helmkamp 1977-3-20 Riverside Cabazon edge of dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-325  Isomeris arborea var. angustata George K. Helmkamp 1977-3-20 Riverside Cabazon edge of dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-326  Chaenactis glabriuscula George K. Helmkamp 1977-3-20 Riverside Cabazon edge of dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-327  Oenothera micrantha var. exfoliata George K. Helmkamp 1977-3-20 Riverside Cabazon dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-328  Tetradymia comosa George K. Helmkamp 1977-3-20 Riverside Cabazon dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-329  Cryptantha intermedia George K. Helmkamp 1977-3-20 Riverside Cabazon dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1045-330  Stillingia linearifolia George K. Helmkamp 1977-3-20 Riverside Cabazon roadside in Cabazon; Cabazon 7.5'Q Comment
  CLARK-A1045-331  Rumex hymenosepalus George K. Helmkamp 1977-3-20 Riverside Cabazon roadside in Cabazon; Cabazon 7.5'Q Comment
  CLARK-A1045-332  Ephedra viridis George K. Helmkamp 1977-3-20 Riverside Cabazon Cabazon 7.5'Q Comment
  CLARK-A1045-333  Lupinus longifolius George K. Helmkamp 1978-5-2 Riverside Bautista Canyon along Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-334  Collinsia heterophylla George K. Helmkamp 1978-5-2 Riverside Bautista Canyon Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-335  Mimulus diffusus George K. Helmkamp 1978-5-2 Riverside Bautista Canyon a burned area beside Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-336  Mimulus brevipes George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-337  Mimulus brevipes George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-338  Mimulus brevipes George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-339  Jepsonia parryi George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Bautista Road; Hemet 15'Q Comment
  CLARK-A1045-340  Collinsia heterophylla George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Hemet 15'Q Comment
  CLARK-A1045-341  Antirrhinum coulterianum George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Hemet 15'Q Comment
Read comments
Jun 22 2013
  CLARK-A1045-342  Linaria canadensis var. texana George K. Helmkamp 1978-4-8 Riverside Box Springs Mountains Riverside East 7.5Q' Comment
  CLARK-A1045-343  Collinsia heterophylla var. austromontana George K. Helmkamp 1978-4-30 Riverside Riverside Picnic Hill; Riverside E 7.5'Q Comment
  CLARK-A1045-344  Atriplex canescens subsp. linearis George K. Helmkamp 1977-11-6 Riverside Salton Sea Salton Sea State Recreation Area; Salt Creek Campground area; between the highway and the Sea, just north of Salt Creek; Durmid 7.5'Q Comment
  CLARK-A1045-345  Tidestromia oblongifolia George K. Helmkamp 1977-11-6 Riverside Salton Sea Salton Sea State Recreation Area; Salt Creek Campground area; sandy slope between the highway and the Sea, just northwest of Salt Creek; Durmid 7.5'Q Comment
  CLARK-A1045-346  Scirpus robustus George K. Helmkamp 1978-2-19 Riverside Salton Sea Salton Sea State Recreation Area; Salt Creek Campground area; below railroad bridge, beside Sea; ; Durmid 7.5'Q -54 Comment
  CLARK-A1045-347  Marah macrocarpa George K. Helmkamp 1977-3-5 Riverside Santa Ana Mountains along highway north of Rainbow, at Riverside County Line; chaparral; Temecula 7.5'Q Comment
  CLARK-A1045-348  Eriophyllum confertiflorum George K. Helmkamp 1977-3-5 Riverside Santa Ana Mountains along highway north of Rainbow, at Riverside County Line; chaparral; ; Temecula 7.5'Q Comment
  CLARK-A1045-401  Ludwigia peploides George K. Helmkamp 1979-5-15 Riverside Jurupa ""at S.A. Picnic Area""; ; Fontana 7.5' Q 243 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
  CLARK-A1045-59  Geranium carolinianum George K. Helmkamp 1929-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-60  Juncus rugulosus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains head of De Luz Creek; Wildomar 7.5' Q Comment
  CLARK-A1045-61  Eleocharis parishii George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains head of De Luz Creek; Wildomar 7.5' Q Comment
  CLARK-A1045-62  Callitriche marginata George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-63  Linanthus dianthiflorus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q 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
  CLARK-A1045-65  Githopsis specularioides George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn on moist, north slope of Canyon; Hemet 15'Q Comment
  CLARK-A1045-66  Mimulus diffusus George K. Helmkamp 1978-5-6 Riverside Bautista Canyon burn on moist, north slope of Canyon; Hemet 15'Q Comment
  CLARK-A1045-67  Clarkia similis George K. Helmkamp 1978-5-18 Riverside San Jacinto Mountains along State Highway 243 [vicinity of Mountain Center?]; in chaparral; ; Idyllwild 15'Q 1219 Comment
  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
  CLARK-A1045-68  Lupinus concinnus subsp. optatus George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains North Fork San Jacinto River; northeast 1/4 Hemet 15'Q Comment
  CLARK-A1045-69  Orobanche fasciculata George K. Helmkamp 1978-5-18 Riverside San Jacinto Mountains near Kenworthy Forest Station; ; ; southeast 1/4 Idyllwild 15'Q; Butterfly Peak 7.5' Q 1371 Comment
  CLARK-A1045-70  Lepidium virginicum var. pubescens George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains [probably Bee Canyon/San Jacinto Ridge Road area]; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-708  Astragalus douglasii George K. Helmkamp 1977-5-28 Riverside San Jacinto Mountains Lake Fulmor 7.5'Q Comment
  CLARK-A1045-71  Oxytheca emarginata George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains dry slope just northwest of Kensworthy Forest Station; ; Idyllwild 15' Q Comment
  CLARK-A1045-72  Arenaria douglasii George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains dry slope between meadow and sagebrush, just northwest of Kensworthy Forest Station; Idyllwild 15'Q Comment
  CLARK-A1045-73  Penstemon californicus George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains dry slope beside meadow, just northwest of Kensworthy Forest Station; Idyllwild 15'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
  CLARK-A1045-75  Plectritis ciliosa subsp. insignis George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains 2 miles east of Mountain Center; grassy slope; Idyllwild 15'Q Comment
  CLARK-A1045-76  Linanthus lemmonii George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains meadow; Idyllwild 15' Q Comment
  CLARK-A1045-77  Calochortus invenustus George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains Idyllwild 15' Q Comment
  CLARK-A1045-78  Lepidium virginicum var. pubescens George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains Idyllwild 15'Q Comment
  CLARK-A1045-79  Astragalus douglasii George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains Lake Fulmor 7.5'Q Comment
  CLARK-A1045-80  Eriodictyon crassifolium George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains Lake Fulmor 7.5'Q Comment
  CLARK-A1045-81  Lotus argyraeus George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains Lake Fulmor 7.5'Q Comment
Read comments
Jan 3 2018
  CLARK-A1045-82  Lupinus succulentus George K. Helmkamp 1978-4-27 Riverside Valle Vista Mountain Avenue and Florida road; roadside; Hemet 7.5'Q Comment
  CLARK-A1045-83  Pectocarya penicillata George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains .5 mile [north northwest] from CA Highway 74; Hemet 15'Q Comment
  CLARK-A1045-84  Sisymbrium altissimum George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains .5 mile [north northwest] from CA Highway 74; Hemet 15'Q Comment
  CLARK-A1045-85  Pectocarya platycarpa George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains .5 mile [north northwest] from CA Highway 74; Hemet 15'Q Comment
  CLARK-A1045-86  Chorizanthe coriacea George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains 0.5 mile [north northwest] from CA Highway 74; Hemet, 15' Q Comment
  CLARK-A1045-865  Centaurium venustum George K. Helmkamp 1978-6-1 #2 Riverside Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q 487 Comment
  CLARK-A1045-866  Scutellaria tuberosa George K. Helmkamp 1978-6-1 #2 Riverside Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q 487 Comment
  CLARK-A1045-867  Helianthemum scoparium George K. Helmkamp 1978-6-1 #2 Riverside Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q 487 Comment
  CLARK-A1045-868  Helianthemum scoparium George K. Helmkamp 1978-6-1 #2 Riverside Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q 487 Comment
  CLARK-A1045-869  Platystemon californicus George K. Helmkamp 1978-6-1 #4 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-87  Galium andrewsii George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains ca. 2 miles up [east northeast] from Oak Spring; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-870  Mentzelia veatchiana George K. Helmkamp 1978-6-1 #4 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-871  Eucrypta micrantha George K. Helmkamp 1978-6-1 #3 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-872  Phacelia pachyphylla George K. Helmkamp 1978-6-1 #3 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  CLARK-A1045-873  Lupinus truncatus 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
  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
  CLARK-A1045-875  Lotus strigosus 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
  CLARK-A1045-876  Mentzelia involucrata George K. Helmkamp 1977-3-20 Riverside Deep Canyon UCR Boyd Deep Canyon Reserve; sandy bottom of dry wash; ; ; Palm Desert 15'Q 304 Comment
  CLARK-A1045-877  Petalonyx linearis George K. Helmkamp 1977-3-20 Riverside Deep Canyon UCR Boyd Deep Canyon Reserve; sandy bottom of dry wash; ; ; Palm Desert 15'Q 304 Comment
  CLARK-A1045-88  Astragalus pachypus var. jaegeri George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains junction of Bee Canyon Road and San Jacinto Ridge Road; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-880  Cerastium glomeratum George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Hemet 15'Q Comment
  CLARK-A1045-881  Papaver californicum George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Hemet 15'Q Comment
  CLARK-A1045-882  Papaver californicum George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Hemet 15'Q Comment
  CLARK-A1045-883  Lupinus truncatus George K. Helmkamp 1978-6-1 #1 Riverside Santa Ana Mountains roadside; Wildomar 7.5'Q Comment
  CLARK-A1045-884  Lupinus truncatus George K. Helmkamp 1978-6-1 #1 Riverside Santa Ana Mountains roadside; Wildomar 7.5'Q Comment
  CLARK-A1045-885  Lupinus truncatus George K. Helmkamp 1978-6-1 #1 Riverside Santa Ana Mountains roadside; Wildomar 7.5'Q Comment
  CLARK-A1045-89  Linanthus dianthiflorus subsp. farinosus George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains 2 miles up [east northeast] from Oak Spring; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-90  Lathyrus laetiflorus George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains 3 miles up [east northeast] from Oak Spring; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-900  Trifolium albopurpureum George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains ""Park, Twin Pines Road""; ; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-91  Lepidium virginicum var. pubescens George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains originally ""at Deer Spring""; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-92  Lepidium virginicum var. pubescens George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains originally ""at Deer Spring""; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-93  Lupinus sparsiflorus George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains steep slope; Lake Fulmor 7.5'Q Comment
  CLARK-A1045-94  Gilia capillaris George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains 6 miles west of Pine Cove; on dirt road near North Fork of the San Jacinto River; ; Lake Fulmor 7.5'Q 1676 Comment
  CLARK-A1045-95  Festuca megalura George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains 6 miles west of Pine Cove; on dirt road near North Fork of the San Jacinto River; ; Lake Fulmor 7.5'Q 1676 Comment
  CLARK-A1045-96  Claytonia perfoliata var. parviflora George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains 6 miles west of Pine Cove; on dirt road between Pine Cove and North Fork of the San Jacinto River; ; San Jacinto Peak 7.5'Q 1676 Comment
  CLARK-A1045-97  Spergularia bocconi George K. Helmkamp 1979-5-5 Riverside Sandia Canyon Fallbrook 7.5'Q Comment
  CLARK-A1045-98  Eriogonum thurberi George K. Helmkamp 1977-6-7 Riverside Riverside at the ""falls"" [sand at west base of Mt. Rubidoux]; Riverside West 7.5'Q Comment
  CLARK-A1045-99  Eriogonum thurberi George K. Helmkamp 1977-6-7 Riverside Riverside at the ""falls"" [sand at west base of Mt. Rubidoux]; Riverside West 7.5'Q Comment
  HSC78514  Pectocarya heterocarpa G. K. Helmkamp 1983-3-24 38312 Riverside Little Chuckwalla Mtns., N base, 1.5 mi. E of Graham Pass Rd. 335 Comment
  HSC78515  Psathyrotes ramosissima G. K. Helmkamp 1983-3-24 3837 Riverside Chuckwalla Valley, at junction of the Graham Pass & Chuckwalla Springs Rd. 229 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
  HSC78582  Mentzelia albicaulis G. K. Helmkamp 1983-3-24 3836 Riverside Chuckwalla Valley, at junction of the Graham Pass & Chuckwalla Springs Rd. 229 Comment
  HSC78583  Langloisia setosissima subsp. setosissima G. K. Helmkamp 1983-3-24 38311 Riverside Little Chuckwalla Mtns., N base, 1.5 mi. E of Graham Pass Rd. 335 Comment
  HSC78584  Chaenactis carphoclinia var. carphoclinia G. K. Helmkamp 1983-3-24 38319 Riverside Little Chuckwalla Mtns., N base, 1.5 mi. E of Graham Pass Rd 336 Comment
  HSC78585  Chorizanthe corrugata G. K. Helmkamp 1983-3-24 3838 Riverside Little Chuckwalla Mtns., N base, 1.5 mi. E of Graham Pass Rd. 335 Comment
  HSC79071  Boerhavia triquetra G. K. Helmkamp 1983-10-8 - 19 Riverside TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road 762 Comment
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Feb 18 2013
  HSC79079  Mimulus parishii G. K. Helmkamp 1984-5-2 - 32 Riverside Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns. 550 Comment
  HSC79080  Spergularia salina G. K. Helmkamp 1984-5-5 - 7 Riverside Little San Bernardino Mtns., Big Morongo Canyon, 4 mi. below the caretaker's house at the Big Morongo Preserve 549 Comment
  HSC79081  Cryptantha racemosa G. K. Helmkamp 1984-5-5 - 4 Riverside Little San Bernardino Mtns., Big Morongo Canyon, 4 mi. below the caretaker's house at the Big Morongo Preserve 549 Comment
  HSC79082  Cryptantha micrantha G. K. Helmkamp 1984-5-5 - 11 Riverside Little San Bernardino Mtns., Big Morongo Canyon, 4 mi. below the caretaker's house at the Big Morongo Preserve 549 Comment
  HSC79227  Eriogonum fasciculatum var. polifolium G. K. Helmkamp 1983-10-8 - 24 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
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Feb 18 2013
  HSC79230  Zeltnera exaltata G. K. Helmkamp 1984-5-2 - 4 Riverside Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns. 550 Comment
  HSC79236  Amaranthus fimbriatus G. K. Helmkamp 1983-10-8 - 34 Riverside TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road 762 Comment
  HSC79237  Stillingia linearifolia G. K. Helmkamp 1983-10-8 - 30 Riverside TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road 762 Comment
  HSC79238  Salazaria mexicana G. K. Helmkamp 1983-10-8 - 32 Riverside TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road 762 Comment
  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
  HSC79248  Mimulus guttatus G. K. Helmkamp 1984-5-2 - 31 Riverside Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns. 550 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
  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
  HSC79253  Eschscholzia minutiflora G. K. Helmkamp 1984-5-5 - 3 Riverside Little San Bernardino Mtns., Big Morongo Canyon, 4 mi. below the caretaker's house at the Big Morongo Preserve 549 Comment
  HSC79285  Phoradendron californicum G. K. Helmkamp 1984-5-2 - 11 Riverside Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns. 550 Comment
  HSC79286  Chilopsis linearis G. K. Helmkamp 1984-5-5 - 9 Riverside Little San Bernardino Mtns., Big Morongo Canyon, 4 mi. below the caretaker's house at the Big Morongo Preserve 549 Comment
  HSC79298  Croton californicus G. K. Helmkamp 1983-10-8 - 37 Riverside TNC Big Morongo Preserve, S of town of Morongo Valley in Big Morongo Canyon, beside pipeline road 762 Comment
  HSC83003  Chamaesyce polycarpa G. K. Helmkamp 1985-6-28 600 Riverside S of Morongo Valley, at the lower end of the canyon where it opens into the W end of the Coachella Valley 503 Comment
  HSC93369  Ziziphus obtusifolia var. canescens G. K. Helmkamp 1996-3-11 10003 Riverside Corn Springs 479 Comment
  OBI37412  Stephanomeria pauciflora G. Helmkamp 1985-5-9 454 Riverside 1/2 mi from the Coachella Valley 503 Comment
  OBI37461  Chilopsis linearis subsp. arcuata G. Helmkamp 1985-5-9 455 Riverside S of Morongo Valley; Big Morongo Preserve; 1/2 mi from the Coachella Valley 503 Comment
  OBI39302  Eremothera refracta G. K. Helmkamp 1983-4-5 483 -15 Riverside Chuckwalla Mts, large wash below Chuckwalls spring, 9 mi SW of Graham Pass Rd 488 Comment
  OBI40205  Eriogonum thomasii G. K. Helmkamp 1983-4-5 483 -34 Riverside Chuckwalla MTs, large was below Chuckwalla Spring, 9 mi SW of Graham Pass Rd 488 Comment
  RSA0072125  Orobanche cooperi G. K. Helmkamp 1998-4-4 3144 Riverside Southern Mojave Desert: junction of CA Hwy 62 (Twentynine Palms Hwy) & CA Hwy 177 (Desert Center-Rice Rd). 457 Comment
  RSA332592  Gilia scopulorum George K. Helmkamp 1983-3-24 383 -16 Riverside Little Chuckwalla Mtns, north base, 1.5 mi east of Graham Pass Rd. 335 Comment
  RSA518291  Sesbania exaltata George K. Helmkamp 1989-9-16 s.n. Riverside W side of State Hwy. 78, 0.7 mi. N of Palo Verde. Palo Verde. 75 Comment
  RSA519018  Pectocarya linearis subsp. ferocula George K. Helmkamp 1986-4-7 770 Riverside South of Morongo Valley: First canyon east of and parallel to Hwy 62 north of Indian Ave. B.M. land. 579 Comment
  RSA519021  Eriogonum thomasii George K. Helmkamp 1986-4-7 761 Riverside South of Morongo Valley: First canyon east of and parallel to Hwy 62 north of Indian Ave. B.M. land. 579 Comment
  RSA519024  Nemacladus tenuis var. aliformis George K. Helmkamp 1986-4-7 757 Riverside Canyon Just E of and parallel to Hwy 62, above Indian Ave. BLM Land. 579 Comment
  RSA554129  Linanthus maculatus George K. Helmkamp 1992-4-16 92 -4 Riverside Coachella Valley, soft, sandy bench of Mission Creek, 0.4 miles S of Indian Ave. on old Hwy 62. [A few scattered plants found on N side of Mission Creek between Hwy 62 & old Hwy 62, but none S of creek or W of Hwy 62.] 20 Comment
  RSA554130  Linanthus maculatus George K. Helmkamp 1992-4-11 92 -3 Riverside Whitewater River Wash, 0.4 miles N of pumping station and 150 yards E of road (ca. 1/2 way between Bonnie Bell and station) 550 Comment
  RSA613708  Phacelia cicutaria var. hispida George K. Helmkamp 1998-4-3 3090 Riverside Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve. 1.1 mile NW of the ranch house besides a gauging station along the creek. 747 Comment
  RSA613784  Dalea mollissima George K. Helmkamp, E. A. Helmkamp 1998-2-18 2741 Riverside Chuckwalla Mts., 10.6 mi SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  RSA613859  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 1997-3-5 1334 Riverside Cabazon; 0.5 mi N of I-10 on Millard Rd. 564 Comment
  RSA614334  Chamaesyce maculata George K. Helmkamp, E. A. Helmkamp 1997-1-8 1279 Riverside Palm Springs. Lawn at El Cielo and Tahquitz-McCallum. 152 Comment
  RSA614477  Eriogonum thomasii George K. Helmkamp 1998-4-4 3171 Riverside 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station. 305 Comment
  RSA614498  Chamaesyce polycarpa var. polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-5 2664 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  RSA614499  Hyptis emoryi George K. Helmkamp 1998-2-5 2649 Riverside Palm Springs, 1.1 mi. W of CA Hwy 111 on Tramway Rd. 335 Comment
  RSA614559  Ambrosia dumosa George K. Helmkamp 1998-4-4 3148 Riverside Junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd). 457 Comment
  RSA614564  Camissonia claviformis subsp. claviformis George K. Helmkamp 1988-4-4 3136 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd). [UTM 10km cell: 11SPH-4E, 3N. Desert Center] 457 Comment
  RSA614565  Nicotiana obtusifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2665 Riverside 3.2 mi. N of jct of Thousand Palms Canyon Rd and Dillon Rd. 457 Comment
  RSA614701  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 1997-3-5 1337 Riverside Cabazon; 0.5 mi N of I-10 on Millard Rd. 564 Comment
  RSA614702  Calystegia macrostegia subsp. intermedia George K. Helmkamp, E. A. Helmkamp 1997-3-5 1327 Riverside 2.8 mi SE of Gilman Hot Springs. 518 Comment
  RSA614703  Gilia angelensis George K. Helmkamp, Elizabeth Helmkamp 1997-3-5 1326 Riverside 2.8 mi SE of Gilman Hot Springs. 518 Comment
  RSA614704  Lotus strigosus George K. Helmkamp, E. A. Helmkamp 1997-3-5 1325 Riverside 2.8 mi SE of Gilman Hot Springs. 518 Comment
  RSA614714  Chenopodium ficifolium George K. Helmkamp 1997-2-1 1292 Riverside Industrial area in Coachella at 54th and Enterprise, ca 2 blocks E of Hwy CA-111., (33 39.4'N, 116 8.9'W). [UTM 10 km cell: NH-7E, 2N. Coachella] 0 Comment
  RSA614890  Camissonia pallida subsp. hallii George K. Helmkamp 1998-4-3 3077 Riverside Snow Creek area N of Mt. San Jacinto; at edge of stream S of Snow Creek Rd at a point 1.4 mi. S of CA Hwy 111. 396 Comment
  RSA614891  Astragalus tricarinatus George K. Helmkamp 1998-4-3 3087 Riverside Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve. 1.1 mile NW of the ranch house besides a gauging station along the creek. 747 Comment
  RSA615329  Perityle emoryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2717 Riverside Colorado Desert: Chuckwalla Valley, 0.3 mile S of Chuckwalla Road on Graham Pass Road. Comment
  RSA615333  Oenothera deltoides subsp. deltoides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2689 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains Comment
  RSA615334  Euphorbia eriantha George K. Helmkamp 1998-2-18 2691 Riverside Sonoran (Colorado) Desert Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 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
  RSA615336  Marina parryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2694 Riverside Sonoran (Colorado) Desert Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  RSA615337  Encelia farinosa var. farinosa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2695 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains 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
  RSA615340  Hyptis emoryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2699 Riverside Sonoran (Colorado) Desert Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  RSA615341  Sphaeralcea ambigua George K. Helmkamp, E. A. Helmkamp 1998-2-18 2700 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains Comment
  RSA615342  Aristida adscensionis George K. Helmkamp, E. A. Helmkamp 1998-2-18 2701 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains Comment
  RSA615343  Cryptantha angustifolia George K. Helmkamp, E. Helmkamp 1998-2-18 2706 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains Comment
  RSA615345  Geraea canescens George K. Helmkamp, E. A. Helmkamp 1998-2-18 2708 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains 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
  RSA628246  Gilia angelensis George K. Helmkamp, E. A. Helmkamp 1997-3-5 1335 Riverside Cabazon; 0.5 mi N of I-10 on Millard Rd. 564 Comment
  RSA644185  Lupinus arizonicus George K. Helmkamp 1995-3-16 s.n. Riverside Colorado Desert: below rocky slopes of Coxcomb Mtns., W of Rice Rd., 10.3 miles NE of Desert Center. 200 Comment
  RSA645539  Phoradendron libocedri George K. Helmkamp 1995-11-16 s.n. Riverside San Jacinto Mountains. along Hwy 243 at Lake Fulmor. [UTM 10km cell: NH-2E, 4N. Black Mtn.] 1616 Comment
Read comments
May 4 2018
  RSA645540  Phoradendron densum George K. Helmkamp 1995-11-16 s.n. Riverside San Jacinto Mountains. Pinyon Pines Camp beside Hwy 74. 1235 Comment
  RSA666776  Eriogonum davidsonii George K. Helmkamp, E. A. Helmkamp 1998-6-27 4073 Riverside Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  RSA682578  Phoradendron villosum George K. Helmkamp 1995-11-16 119 Riverside San Jacinto Mountains. along Hwy 243 at Lake Fulmor. [UTM 10km cell: NH-2E, 4N. Black Mtn.] 1616 Comment
  RSA712691  Cryptantha decipiens George K. Helmkamp 1984-5-2 D- 27 Riverside Big Morongo Canyon, 3 - 3.5 miles below the caretakers s house at the Big Morongo Preserve. 549 Comment
  RSA712692  Cryptantha barbigera George K. Helmkamp 1984-5-2 D- 10 Riverside Big Morongo Canyon, 3 - 3.5 miles below the caretakers s house at the Big Morongo Preserve. 549 Comment
  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
  SBBG92380  Echinochloa colona G. K. Helmkamp 1989-9-16 Riverside ca. 0.5 mi S of Interstate 8, W of Blythe at Seeley Rd and St Hwy 78 75 Comment
  SBBG92381  Chloracantha spinosa G. K. Helmkamp 1989-9-16 s.n. Riverside ca. 0.5 mi S of Interstate 8, W of Blythe at Seeley Rd and St Hwy 78 75 Comment
  SBBG92387  Sesbania exaltata G. K. Helmkamp 1989-9-16 s.n. Riverside W side of St Hwy 78, 0.7 mi N of Palo Verde 75 Comment
  SBBG94891  Astragalus crotalariae G. K. Helmkamp 1975-2-17 s.n. Riverside St Hwy 111 at Salt Crk, NE side of Salton Sea Comment
  SD121358  Cryptantha angustifolia G. K. Helmkamp 1983-4-5 483 33 Riverside Chuckawalla Mountains, large wash below Chuckawalla Spring, 9 miles southwest of Graham Pass Road 490 Comment
  SD129173  Eriochloa acuminata var. acuminata G. Helmkamp 1989-9-16 Riverside Hayfield on the W side of state hwy 78, 0.7 mi. N of Palo Verde. 74 Comment
  SD129179  Dinebra panicea var. brachiata G. Helmkamp 1989-9-16 Riverside Ca. I(c) mi. S of Hwy I-8 W of Blythe, in disturbed soil beside alfalfa field at Seely Road and state hwy 78. 74 Comment
  SD129180  Diplachne fusca var. uninervia G. Helmkamp 1989-9-16 Riverside Circa 1/2 mile South of Highway I-8 West of Blythe, in disturbed soil beside alfalfa field at Seeley Road and State Highway 78. 74 Comment
  SD129529  Cordylanthus rigidus subsp. setiger G. K. Helmkamp 1989-10-7 Riverside Edge of moist farmland at the N edge of the fish hatchery in Whitewater Canyon, N of I-10 700 Comment
  SD143703  Lycium andersonii G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2693 Riverside Colorado Desert: Midland Road., 3.8 mi. SE of Midland, Little Maria Mts. sandy wash Comment
  SD143778  Eriogonum thomasii G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2740 Riverside Chuckawalla Mtns: Graham Pass Rd, 10.6 mi. SSW of Chuckawalla Valley Rd. 487 Comment
  SD143891  Marina parryi G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2694 Riverside Colorado Desert; Midland Road, 3.8 miles southeast of Midland, Little Maria Mountains. Comment
  SD143928  Ditaxis neomexicana G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2702 Riverside Little Maria Mountains, Colorado desert, Midland road, 3.8 miles SE of Midland Comment
  SD143929  Ditaxis neomexicana G. K. Helmkamp, A. C. Sanders, P. McKay, T. Thomas 1997-2-8 19685 Riverside Colorado Desert/San Jacinto Mountains, Palm Springs area, Murray Canyon off Palm Canyon, on south side of boulders along trail near the mouth of the canyon 244 Comment
  SD144022  Perityle emoryi G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2717 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mi S of Chuckwalla Rd. on Graham Pass Rd. Comment
  SD144431  Physalis crassifolia G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2692 Riverside Colorado Desert: Midland Rd., 3.8 mi. SE of Midland, Little Maria Mtns., sandy wash Comment
  SD144454  Hyptis emoryi G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2699 Riverside Colorado Desert: Midland Rd, 3.8 mi SE of Midland, Little Maria Mtns. Comment
  SD144469  Euphorbia eriantha G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2691 Riverside Colorado Desert: Midland Rd, 3.8 mi SE of Midland, Little Maria Mtns. Comment
  SD146083  Poa pratensis subsp. pratensis G. K. Helmkamp, E. A. Helmkamp, A. Kerchner 1999-6-29 5018 Riverside Northern Sierra Nevada Range; N of Hwy I-80 at west exit to Donner Lake; opening to Negro Canyon 2134 Comment
  SD148100  Ludwigia peploides G. K. Helmkamp, E. A. Helmkamp 2000-8-29 5981 Riverside Colorado Desert.: South of Mecca, where Lincoln St. crosses the Whitewater River. About 0.5 miles from the Salton Sea. One large cluster beside the river water. 67 Comment
  SD148159  Lupinus microcarpus var. microcarpus G. K. Helmkamp, E. A. Helmkamp 2001-5-2 6624 Riverside La Panza Range: CA-58 11.2 miles east of Santa Margarita 487 Comment
Read comments
Dec 7 2011
  SD167138  Ditaxis neomexicana G. K. Helmkamp 1998-4-4 - 3180 Riverside 2.3 miles north of Highway I-10 on Eagle Mountain Road. 274 Comment
  SD185241  Phacelia distans G. K. Helmkamp 1998-4-4 3129 Riverside Junction of CA 62 and CA 177. 456 Comment
  SD224791  Aristida adscensionis G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2676 Riverside Little San Bernardino Mtns. 3.2 mi. N. of jct of Thousand Palms Canyon Rd. & Dillon Rd. 456 Comment
  SD224792  Aristida adscensionis G. K. Helmkamp 1998-4-4 3155 Riverside Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd., to the vicinity of the pumping station. 305 Comment
  SD224827  Chaenactis carphoclinia G. K. Helmkamp 1998-4-4 3157 Riverside Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station. 305 Comment
  SD224839  Encelia farinosa var. phenicodonta G. K. Helmkamp 1998-4-4 3134 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd) 456 Comment
  SD224841  Encelia frutescens G. K. Helmkamp 1998-4-4 3132 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd). 456 Comment
  SD224860  Malacothrix glabrata G. K. Helmkamp 1998-4-4 3140 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) and CA hwy 177 (Desert Center-Rice Rd.) 456 Comment
  SD224862  Monoptilon bellioides G. K. Helmkamp 1998-4-4 3165 Riverside Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station. 305 Comment
  SD224864  Perityle emoryi G. K. Helmkamp 1998-2-5 2648 Riverside Palm Springs, 1.1 mi. W of CA Hwy 111 on Tramway Rd. 334 Comment
  SD224872  Cryptantha angustifolia G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2652 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. Almost barren hills just beyond creosote bush scrub. 100 Comment
  SD224873  Cryptantha angustifolia G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2668 Riverside Little San Bernadino Mtns, 3.2 mi. N of jct of Thousand Palms Canyon Rd. & Dillon Rd. Comment
  SD224921  Atriplex suberecta G. K. Helmkamp 1996-1-23 999 Riverside Beside irrigated fields 1.5 miles northeast of Blythe, approximately at Intake Blvd and 10th Ave. 81 Comment
  SD224941  Euphorbia polycarpa G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2675 Riverside Little San Bernardino Mtns, 3.2 mi. N of jct of Thousand Palms Canyon Rd & Dillon Rd. 456 Comment
  SD224944  Euphorbia setiloba G. K. Helmkamp 1998-4-4 3161 Riverside Colorado Desert: 7.1 mi N of Hwy I-10 on Eagle Mrn Rd, to the vicinity of the pumping station. 305 Comment
  SD224954  Astragalus tricarinatus G. K. Helmkamp 1998-4-3 3087 Riverside Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging station along the creek. 747 Comment
  SD224957  Dalea mollissima G. K. Helmkamp 1998-2-5 2673 Riverside Little San Bernardino Mtns., 3.2 mi N of jct of Thousand Palms Canyon Rd & Dillon Rd. 456 Comment
  SD224960  Acmispon argophyllus G. K. Helmkamp 1998-4-3 3092 Riverside Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging station along the creek. 747 Comment
  SD224961  Acmispon argophyllus G. K. Helmkamp 1998-4-3 3069 Riverside Whitewater River, bordering the N side of Hwy I-10; E side of the river. 395 Comment
  SD224963  Acmispon strigosus G. K. Helmkamp 1998-4-3 3080 Riverside Snow Creek area N of Mt. San Jacinto; at edge of stream S of Snow Creek Rd at a point 1.4 mi. S of CA Hwy 111. 395 Comment
  SD224964  Lupinus arizonicus G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2678 Riverside Little San Bernardino Mtns, 3.2 mi. N of jct of Thousand Palms Canyon Rd & Dillon Dr. 456 Comment
  SD224965  Lupinus arizonicus G. K. Helmkamp 1998-4-4 3099 Riverside Mojave Desert: Dale Lake, 1.8 mi. W of Iron Age Rd & 0.7 mi. N of CA hwy 62 366 Comment
  SD224969  Lupinus sparsiflorus G. 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 station along the creek. 747 Comment
  SD224970  Marina parryi G. K. Helmkamp 1998-4-4 3154 Riverside Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station. 305 Comment
  SD224973  Psorothamnus emoryi G. K. Helmkamp 1998-4-4 3138 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd). 456 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
  SD225003  Phacelia tanacetifolia G. K. Helmkamp 1998-2-5 2638 Riverside Palm Springs, 1.1 mi. W of CA Hwy 111 on Tramway Rd. 334 Comment
  SD225006  Hyptis emoryi G. K. Helmkamp 1998-4-4 3178 Riverside Colorado Desert: 2.3 mi N of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  SD225012  Mentzelia involucrata G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2672 Riverside Little San Bernardino Mtns, 3.2 mi N of jct of Thousand Palms Canyon Rd & Dillon Rd. 456 Comment
  SD225013  Mentzelia obscura G. K. Helmkamp 1998-4-4 3145 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd.) 456 Comment
  SD225031  Mirabilis laevis var. villosa G. K. Helmkamp 1998-4-4 3131 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd). 456 Comment
  SD225045  Camissoniopsis pallida G. K. Helmkamp 1998-4-3 3064 Riverside Whitewater River, bordering the N side of Hwy I-10; E side of the river. Comment
  SD225053  Eschscholzia minutiflora G. K. Helmkamp 1998-4-4 3133 Riverside Southern Mojave Deset: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center- Rice Rd.) 474 Comment
  SD225054  Eschscholzia parishii G. K. Helmkamp 1998-4-4 3160 Riverside Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumpins station 305 Comment
  SD225059  Gilia stellata G. K. Helmkamp 1998-4-4 3130 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center - Rice Rd). 474 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
  SD225074  Eriogonum thomasii G. K. Helmkamp 1998-4-4 3171 Riverside Colorado Desert: 7.1 mi N of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station. 305 Comment
  SD225075  Eriogonum thomasii G. K. Helmkamp 1998-2-5 2674 Riverside Little San Bernardino Mtns. 3.2 mi N of jct of Thousand Palms Canyon Rd & Dillon Rd. 456 Comment
  SD225077  Eriogonum thurberi G. K. Helmkamp 1998-4-3 3075 Riverside Snow Creek area N of Mt. San Jacinto; at edge of stream S of Snow Creek Rd at a point 1.4 mi. S of CA Hwy 111 395 Comment
  SD225084  Rumex pulcher G. Helmkamp 1996-5-24 1025 Riverside State Park System north of Turri Road and 1.5 mi east of South Bay Blvd. 93 Comment
  SD225112  Castilleja foliolosa G. K. Helmkamp 1998-4-3 3089 Riverside Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging station along the creek 747 Comment
  SD225123  Nicotiana obtusifolia G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2665 Riverside Little San Bernardino Mtns., 3.2 mi. N of jct of Thousand Palms Canyon Rd & Dillon Rd. 456 Comment
  SD225134  Fagonia laevis G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2657 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. 100 Comment
  SD225135  Fagonia pachyacantha G. K. Helmkamp 1998-4-4 3158 Riverside Colorado Desert: 7.1 mi. N of Hwy I-10 on Eagle Mtn Rd, to the vivinity of the pumping station. 305 Comment
  SD227829  Zeltnera venusta G. K. Helmkamp, E. A. Helmkamp 1998-6-27 4079 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. 1601 Comment
  SD227870  Gilia angelensis G. K. Helmkamp, E. A. Helmkamp 1997-3-5 1335 Riverside Cabazon area. Grazing land .5 mi. N of I-10 on Millard Rd. 563 Comment
  SD234790  Scandix pecten-veneris G. K. Helmkamp, E. A. Helmkamp 2008-3-22 13236 Riverside Sierra Nevada Mountains Foothills: along Mokelumne Vista Road at the junction with CA-49, just west of Mokelumne Hill village (Mokelumne Hill 7.5'Q) 479 Comment
  SEINET1076094 Image available Ambrosia acanthicarpa G. Helmkamp 1986-4-7 763 Riverside Canyon just E of and parallel to Highway 62; BLM land N of Indian Ave. 579 Comment
  SEINET1086113 Image available Chaenactis fremontii G. Helmkamp, M. Rosczyk 1985-4-4 223 Riverside West edge of themain canyon 1/4 mile below the BLM gate. 518 Comment
  SEINET1109560  Ditaxis neomexicana George K. Helmkamp 1998-1 3180 Riverside Sonoran (Colorado) Desert: 2.3 mi. N of Hwy I-10 on nEagle Mtn Rd. 274 Comment
  SEINET2042035 Image available Atriplex lentiformis George Helmkamp, E. A. Helmkamp 2000-8-29 5983 Riverside Colorado Desert: S of Mecca, where Lincoln St. Crosses the Whitewater River. Ca. 0.5 mi from the Salton Sea. 67 Comment
  SEINET2042036 Image available Polygonum hydropiperoides George Helmkamp, E. A. Helmkamp 2000-8-29 5985 Riverside Colorado Desert: S of Mecca, where Lincoln St. Crosses the Whitewater River. Ca. 0.5 mi from the Salton Sea. 67 Comment
  SEINET2042037 Image available Sesbania herbacea George Helmkamp, E. A. Helmkamp 2000-8-29 5984 Riverside Colorado Desert: S of Mecca, where Lincoln St. Crosses the Whitewater River. Ca. 0.5 mi from the Salton Sea. 67 Comment
  SEINET2042038 Image available Ludwigia peploides George Helmkamp, E. A. Helmkamp 2000-8-29 5981 Riverside Colorado Desert: S of Mecca, where Lincoln St. Crosses the Whitewater River. Ca. 0.5 mi from the Salton Sea. 67 Comment
  SEINET2042331 Image available Lotus rigidus George K. Helmkamp, E. A. Helmkamp 1998-4-23 3376 Riverside Santa Rosa Mountains; Pinyon Pines along CA-74 between the San Jacinto and Santa Rosa Mountains. 1296 Comment
  SEINET2042332 Image available Mirabilis bigelovii var. retrorsa George K. Helmkamp, E. A. Helmkamp 1998-4-23 3377 Riverside Santa Rosa Mountains; Pinyon Pines along CA-74 between the San Jacinto and Santa Rosa Mountains. 1296 Comment
  SEINET2043201 Image available Trichoptilium incisum George K. Helmkamp, E. A. Helmkamp 1998-4-24 3388 Riverside Santa Rosa Mountains: Palms to Pines HWY ( CA-74) 1 mi N of Carrizo Rd. near Black Hill. 1006 Comment
  SEINET2043598 Image available Astragalus palmeri George K. Helmkamp, E. A. Helmkamp 1998-4-24 3379 Riverside Santa Rosa Mountains: Pinyon Pines along CA-74 between the San Jacinto & Santa Rosa Mountains. 1296 Comment
  SEINET2044652 Image available Atrichoseris platyphylla George Helmkamp 1995-3-16 Riverside Colorado Desert: desert pavement on alluvial fan below rocky slopes of Coxcomb Mountains, W of Rice Rd., 10.3 miles NE of Desert Center, 198 Comment
  SEINET2052883 Image available Ambrosia salsola George K. Helmkamp, E. A. Helmkamp 1998-2-18 2744 Riverside Chuckwalla Mts., raham Pass Rd. 10.6 mi. SSW of Chuckwalla Valley Rd. 487 Comment
  SEINET2054110 Image available Perityle emoryi G. Helmkamp, E. Helmkamp 1998-1-17 2539 Riverside Box Canyon Road ENE of Mecca and on theNorth side of Coachella Canal. 0 Comment
  SEINET2061477 Image available Dalea mollissima George Helmkamp 1995-3-16 Riverside Colorado Desert, Coxcomb Mtns., W of Rice Road, 10.3 miles NE of Desert Center. 198 Comment
  SEINET2062430 Image available Lotus strigosus G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2718 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mi S of Chuckwalla Rd. on Graham Pass Rd. Comment
  SEINET2062842  Lupinus arizonicus George Helmkamp 1995-3-16 Riverside Coxcomb Mts, W of Rice Rd., 10.3 mi NE of Desert Center 198 Comment
  SEINET2063255 Image available Marina parryi George Helmkamp 1995-3-16 Riverside Slopes of Coxcomb Mts. W of Rice Rd., 10.3 mi NE of Desert Center 198 Comment
  SEINET225785  Mentzelia involucrata George K. Helmkamp 1983-4-5 483 -24 Riverside Chuckwalla Mountains, Large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road. 488 Comment
  SEINET238181  Lupinus concinnus George K. Helmkamp 1998-6-27 4097 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  SEINET238182  Trichostema parishii George K. Helmkamp 1998-6-27 4084 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  SEINET238184  Lithophragma affine George K. Helmkamp 1998-6-27 4117 Riverside Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring. 1799 Comment
  SEINET238550 Image available Arctostaphylos pringlei subsp. drupacea George K. Helmkamp 1998-6-27 4121 Riverside Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring. 1799 Comment
  SEINET238551  Lupinus hyacinthinus George K. Helmkamp 1998-6-27 4124 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238552  Lotus argyraeus var. argyraeus George K. Helmkamp 1998-6-27 4125 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238553 Image available Ribes nevadense George K. Helmkamp 1998-6-27 4126 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238554 Image available Ribes cereum var. cereum George K. Helmkamp 1998-6-27 4127 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238555 Image available Sarcodes sanguinea George K. Helmkamp 1998-6-27 4128 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238556 Image available Erythranthe moschata George K. Helmkamp 1998-1 4129 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238557  Lathyrus vestitus George K. Helmkamp 1998-6-27 4119 Riverside Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring. 1799 Comment
  SEINET238558  Hymenopappus filifolius var. lugens George K. Helmkamp 1998-6-27 4122 Riverside Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring. 1799 Comment
  SEINET238559  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. below Mountain Home Spring. 1799 Comment
  SEINET238560  Mimetanthe pilosa George K. Helmkamp 1998-1 4104 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  SEINET238561  Camissonia strigulosa George K. Helmkamp 1998-6-27 4103 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unamed spring. 1585 Comment
  SEINET238562  Chaenactis parishii George K. Helmkamp 1998-6-27 4092 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  SEINET238563  Cryptantha muricata George K. Helmkamp 1998-6-27 4094 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  SEINET238564  Penstemon spectabilis var. spectabilis George K. Helmkamp 1998-6-27 4085 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  SEINET238565  Carex fracta George K. Helmkamp 1998-6-27 4123 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  SEINET238578  Delphinium parishii George K. Helmkamp 1998-6-27 4116 Riverside Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring. 1799 Comment
  SEINET238579  Vicia americana George K. Helmkamp 1998-6-27 4115 Riverside Santa Rosa Mtns.: 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. below Mountain Home Spring. 1799 Comment
  SEINET239051 Image available Bromus grandis George K. Helmkamp 1998-6-27 4118 Riverside Sana Rosa Mountains. 5.8 miles southeast of highway 74 along Santa Rosa Mountain road (=Santa Rosa Truck Trail = F.S. Rd. 7S02), below Mountain Home Spring 1799 Comment
  SEINET255572  Hieracium albiflorum G. K. Helmkamp, E. A Helmkamp 2006-7-28 11014 Riverside Nothern Sierra Nevada Mtns: Echo Summit along Hwy US-50 ; at entrance to the road maintenance station 2245 Comment
  SEINET269089  Atriplex elegans George Helmkamp 1995-3-16 Riverside W of Rice Rd. 10.3 miles NE of Desert Center. 200 Comment
  SEINET269096  Phoradendron libocedri G. Helmkamp, L. Helmkamp 1995-11-16 2 -2 Riverside San Jacinto Mtns. Lake Fulmor at Hwy 243. 1620 Comment
  SEINET269422  Ephedra californica G. Helmkamp 1994-3-8 41 -6 Riverside Indio Hills. southwest facing slope at the junction of Palm Drive and Varner Road below Edom Hill 300 Comment
  SEINET270228  Physalis angulata G. Helmkamp 1996-1-18 8 -1 Riverside About 2 miles northeast of Blythe 91 Comment
  SEINET272164  Plagiobothrys arizonicus G. K. Helmkamp, E. A. Helmkamp 1997-3-5 1332 B Riverside Riverside Co CA. 2.8 mi SE of Gilman Hot Springs. UTM 10km cell: NH-0E 4N. Gilman Hot Springs. 518 Comment
  SEINET273103  Rafinesquia californica G. K. Helmkamp, A. C. Sanders 1997-3-15 1486 Riverside Skinner Lake 488 Comment
  SEINET273116  Camissonia pallida G. K. Helmkamp, AC Sanders 1997-3-15 1501 Riverside Skinner Lake; Grassland at base of Bachelor Mtn and adjoining chaparral. UTM 10km cell; 11SMH-9E 1N Skinner Reservoir 488 Comment
  SEINET3071531 Image available Fagonia laevis George K. Helmkamp, E. A. Helmkamp 1998-1 2657 Riverside Sonoran (Colorado) Desert; Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  SEINET3083709 Image available Cryptantha angustifolia George K. Helmkamp, E. 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 0 Comment
  SEINET3087900 Image available Eriogonum thomasii George K. Helmkamp 1995-3-16 Riverside W of Rice Rd. 10.3 miles NE of Desert Center. On alluvial fan below rocky slopes of Coxcomb Mtns. Common. [UTN 10 km cell: PH-5E 4N. Coxcomb (S)] 198 Comment
  SEINET3088161 Image available 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. Comment
  SEINET3090945 Image available Plantago ovata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2720 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mi S of Checkwalla Rd. on Graham Pass Rd. Comment
  SEINET3091710 Image available Phacelia crenulata var. ambigua G. Helmkamp, E. Helmkamp 1998-1-17 2541 Riverside Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal. 0 Comment
  SEINET3093141 Image available Camissonia brevipes subsp. brevipes G. K. Helmkamp, E. A. Helmkamp 1998-1-17 2545 Riverside Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal. Comment
  SEINET3093151 Image available Camissonia boothii subsp. desertorum George K. Helmkamp, E. A. Helmkamp 1998-2-18 2743 Riverside Chuckwalla Mtns: Graham Pass Rd, 10.6 mi SSW of Chuckwalla Valley Rd. [UTM 10km cell:PH-7E, 0N. Graham Pass] 488 Comment
  SEINET3093300 Image available Camissonia pallida G. Helmkamp, A. C. Sanders, P. MacKay, T. Thomas 1997-2-8 19674 Riverside Colorado Desert: Palm Springs, Indian Ave at Las Vegas Rd, below mouth of Chino Canyon. Palm Springs 7.5' Quad. 188 Comment
  SEINET3093303 Image available Camissonia claviformis subsp. claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-5 2655 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  SEINET3093305 Image available Camissonia pallida George K. Helmkamp 1986-4-7 756 Riverside Vicinity of Big Morongo Valley; just E of and parallel to Hwy 62, above Indian Ave. 579 Comment
  SEINET3223161 Image available Aristida adscensionis George Helmkamp 1995-3-16 Riverside Colorado Desert; desert pavement on alluvial fan below rocky slopes of Coxcomb Mountains, W of Rice Road, 10.3 miles NE of Desert Center. 200 Comment
  SEINET3439982 Image available Dalea mollissima George K. Helmkamp, E. A. Helmkamp 1998-2-18 2741 Riverside Chuckwalla Mtns: Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  SEINET3812583 Image available Nemacladus glanduliferus George K. Helmkamp 1983-4-5 483 -44 Riverside Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 488 Comment
  SEINET887640  Astragalus palmeri George Helmkamp, E. A. Helmkamp 1998-1 3379 Riverside Santa Rosa Mountains: Pinyon Pines along CA-74 between the San Jacinto and Santa Rosa Mountains. 1296 Comment
  SEINET9259737 Image available Pentagramma triangularis subsp. triangularis George K. Helmkamp, Amy Barnes 2013-1 22311 Riverside 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
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Apr 12 2018
  SEINET957560  Acmispon heermannii George K. Helmkamp 1984-1 A- 27 Riverside Big Morongo Canyon near the riverside county line, 2 miles below the Big Morongo Preserve headquarters, floor of the main canyon and to 1/4 mi. up a broad side canyon to the east. 701 Comment
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Dec 3 2014
  SEINET959099  Circaea alpina G. K. Helmkamp, E. A. Helmkamp 2005-1 6877 Riverside Northern Sierra Nevada foothills: Silver Fork, 2.1 mi. west of Kyburz along US highway 50 (Kyburz 7.5Q) 1204 Comment
  SEINET959100  Kelloggia galioides G. K. Helmkamp, E. A. Helmkamp 2005-1 9742 Riverside Northern Sierra Nevada Foothills: 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 (Kyburz 7.5Q). 1637 Comment
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Nov 8 2013
  SEINET959644  Baccharis douglasii G. K. Helmkamp, E. A. Helmkamp 2004-1 8769 Riverside Southern Central Coast: Surf, NW of Lompoc (Surf 7.5) 9 Comment
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May 17 2014
  UCD103854  Chylismia claviformis G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2710 Riverside Colorado Desert. Midland Road, 3.8 miles SE of Midland, Little Maria Mountains. Comment
  UCD103856  Chylismia claviformis G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2713 Riverside Colorado Desert. Midland Road, 3.8 miles SE of Midland, Little Maria Mountains. Comment
  UCD107064  Eremothera boothii subsp. desertorum G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2743 Riverside Chuckwalla Mountains. Graham Pass Road, 10.6 miles SSW of Chuckwalla Valley Road. 487 Comment
  UCD114634  Brassica tournefortii G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2723 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mi S of Checkwalla Rd. on Graham Pass Rd. Comment
  UCD115683  Lepidium lasiocarpum subsp. lasiocarpum G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2714 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mi S of Checkwalla Rd. on Graham Pass Rd. Comment
  UCD118999  Cryptantha barbigera G. 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. 550 Comment
  UCD128936  Ambrosia salsola G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2744 Riverside Chuckwalla Mountains. Graham Pass Road, 10.6 miles SSW of Chuckwalla Valley Road. 487 Comment
  UCD130392  Chaenactis stevioides G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2722 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mi S of Checkwalla Rd. on Graham Pass Rd. Comment
  UCD134872  Palafoxia arida var. arida G. Helmkamp 1997-11-1 2516 Riverside Bermuda Dunes, 41st St. and Sparky (just E of Washington and S of I-10). 30 Comment
  UCD170704  Eremothera refracta G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2739 Riverside Chuckwalla Mountains: Graham Pass Road, 10.6 miles SSW of Chuckwalla Valley Road. 448 Comment
  UCD170768  Astragalus lentiginosus var. coachellae George K. Helmkamp 1994-3-8 41 -11 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. and Varner Rd, below Edom Hill. 200 Comment
  UCD63462  Eragrostis mexicana subsp. mexicana G. Helmkamp 1997-11-1 2518 Riverside Bermuda Dunes, 41st St. and Sparky (just E of Washington and S of I-10). 30 Comment
  UCD86834  Muhlenbergia microsperma G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2724 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mile S of Checkwalla Rd. on Graham Pass Rd. Comment
  UCD86835  Muhlenbergia microsperma G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2731 Riverside Colorado Desert: Chuckwalla Mts; 10.6 mi SSW of Chuckwalla Valley Rd. on Graham Pass Rd. Comment
  UCR100325  Bouteloua barbata var. barbata George K. Helmkamp 1997-11-1 2512 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  UCR100329  Palafoxia arida var. arida George K. Helmkamp 1997-11-1 2516 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  UCR100330  Pectis papposa var. papposa George K. Helmkamp 1997-11-1 2515 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  UCR100572  Euphorbia nutans George K. Helmkamp 1997-11-1 2514 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  UCR100573  Abronia villosa George K. Helmkamp 1997-11-1 2517 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  UCR100574  Aristida purpurea var. purpurea George K. Helmkamp 1997-11-1 2513 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 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
  UCR100576  Euphorbia ophthalmica George K. Helmkamp 1997-11-7 2523 Riverside Sonoran (Colorado) Desert, Palm Springs, at the corner of El Cielo and Taquitz-McCallum. 152 Comment
  UCR100785  Lycium andersonii George K. Helmkamp, E. A. Helmkamp 1998-2-18 2693 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100863  Achyronychia cooperi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2690 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100864  Oenothera deltoides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2689 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100865  Euphorbia polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2719 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR100866  Geraea canescens George K. Helmkamp, E. A. Helmkamp 1998-2-18 2708 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100867  Atriplex polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2707 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100868  Cryptantha angustifolia George K. Helmkamp, E. A. Helmkamp 1998-2-18 2706 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100869  Chenopodium murale George K. Helmkamp, E. A. Helmkamp 1998-2-18 2705 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100870  Lotus strigosus George K. Helmkamp, E. A. Helmkamp 1998-2-18 2704 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100871  Allionia incarnata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2703 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100872  Aristida adscensionis George K. Helmkamp, E. A. Helmkamp 1998-2-18 2701 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100873  Sphaeralcea ambigua George K. Helmkamp, E. A. Helmkamp 1998-2-18 2700 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100874  Hyptis emoryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2699 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100875  Plantago ovata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2698 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100876  Tidestromia oblongifolia George K. Helmkamp, E. A. Helmkamp 1998-2-18 2697 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100877  Euphorbia polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2696 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100878  Encelia farinosa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2695 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100879  Marina parryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2694 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR100880  Physalis crassifolia George K. Helmkamp, E. A. Helmkamp 1998-2-18 2692 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  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
  UCR101785  Calystegia macrostegia subsp. intermedia George K. Helmkamp, E. A. Helmkamp 1997-3-5 1327 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101786  Lasthenia gracilis George K. Helmkamp, E. A. Helmkamp 1997-3-5 1333 Riverside San Bernardino Mtns./San Gorgonio Pass, Cabazon, 0.5 mi north of I-10 on Millard Pass Rd. 564 Comment
  UCR101787  Phacelia cicutaria var. hispida George K. Helmkamp, E. A. Helmkamp 1997-3-5 1320 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101788  Camissonia bistorta George K. Helmkamp, E. A. Helmkamp 1997-3-5 1321 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101789  Cryptantha intermedia George K. Helmkamp, E. A. Helmkamp 1997-3-5 1322 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101790  Lupinus sparsiflorus George K. Helmkamp, E. A. Helmkamp 1997-3-5 1324 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101791  Lotus strigosus George K. Helmkamp, E. A. Helmkamp 1997-3-5 1325 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101792  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 1997-3-5 1337 Riverside San Bernardino Mtns./San Gorgonio Pass, Cabazon, 0.5 mi north of I-10 on Millard Pass Rd. 564 Comment
  UCR101796  Lamium amplexicaule George K. Helmkamp, E. A. Helmkamp 1997-3-5 1329 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101797  Camissonia strigulosa George K. Helmkamp, E. A. Helmkamp 1997-3-5 1331 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101798  Gilia angelensis George K. Helmkamp, E. A. Helmkamp 1997-3-5 1332 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101799  Mirabilis californica George K. Helmkamp, E. A. Helmkamp 1997-3-5 1319 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCR101800  Piptatherum miliaceum George K. Helmkamp, E. A. Helmkamp 1998-8-17 4445 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR101801  Mimulus cardinalis George K. Helmkamp, E. A. Helmkamp 1998-8-17 4443 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR101802  Lotus heermannii var. heermannii George K. Helmkamp, E. A. Helmkamp 1998-8-17 4442 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR101803  Datisca glomerata George K. Helmkamp, E. A. Helmkamp 1998-8-17 4440 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR101804  Lythrum californicum George K. Helmkamp, E. A. Helmkamp 1998-8-17 4441 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR101805  Muhlenbergia rigens George K. Helmkamp, E. A. Helmkamp 1998-8-17 4439 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR101806  Erigeron foliosus George K. Helmkamp, E. A. Helmkamp 1998-8-17 4438 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR102120  Amsinckia intermedia George K. Helmkamp 1984-5-2 D 7 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR102121  Lupinus concinnus George K. Helmkamp 1984-5-5 E- 8 Riverside Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve 549 Comment
  UCR102912  Cryptantha barbigera George K. Helmkamp 1998-4-4 3174 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
  UCR102913  Chenopodium serotinum George K. Helmkamp 1997-2-1 1292 Riverside Sonoran (Colorado) Desert, Industrial area in Coachella at 54th and Enterprise, c. 2 blocks east of Calif. Hwy 111 .3 Comment
  UCR102914  Caesalpinia virgata George K. Helmkamp, E. A. Helmkamp 1998-2-5 2656 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR102915  Mohavea confertiflora George K. Helmkamp, E. A. Helmkamp 1998-2-5 2659 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR102916  Phacelia cicutaria var. hispida George K. Helmkamp 1998-4-3 3090 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
  UCR102917  Pholistoma membranaceum George K. Helmkamp 1997-3-5 1340 Riverside San Bernardino Mtns./San Gorgonio Pass, Cabazon, 0.5 mi north of I-10 on Millard Pass Rd. 564 Comment
  UCR102918  Chaenactis fremontii George K. Helmkamp 1998-2-5 2636 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR102919  Lotus argophyllus George K. Helmkamp 1998-4-3 3092 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
  UCR102921  Astragalus tricarinatus George K. Helmkamp 1998-4-3 3087 Riverside Coachella Valley, Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging staion along the creek 747 Comment
  UCR102922  Lotus argophyllus George K. Helmkamp 1998-4-3 3069 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR102923  Phacelia crenulata var. ambigua George K. Helmkamp, E. A. Helmkamp 1998-2-5 2669 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR102924  Camissonia californica George K. Helmkamp 1998-2-5 2641 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR102925  Camissonia claviformis subsp. claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-5 2682 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR102926  Chenopodium murale George K. Helmkamp, E. A. Helmkamp 1998-2-5 2685 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR102927  Euphorbia setiloba George K. Helmkamp, E. A. Helmkamp 1998-2-5 2686 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR102928  Physalis crassifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2670 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR102929  Bromus rubens George K. Helmkamp 1998-2-5 2646 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR102930  Phacelia parryi George K. Helmkamp 1998-4-3 3063 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR102931  Camissonia pallida George K. Helmkamp 1998-4-3 3064 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR102932  Camissonia pallida George K. Helmkamp 1998-4-3 3077 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
  UCR102933  Lotus strigosus George K. Helmkamp 1998-4-3 3080 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
  UCR102934  Castilleja foliolosa George K. Helmkamp 1998-4-3 3089 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
  UCR102935  Cryptantha maritima George K. Helmkamp 1998-4-4 3128 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  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
  UCR102937  Cryptantha nevadensis George K. Helmkamp 1998-4-4 3127 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102938  Eriogonum thurberi George K. Helmkamp 1998-4-3 3075 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
  UCR102939  Argemone munita George K. Helmkamp 1998-4-4 3182 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR102940  Nemacladus orientalis George K. Helmkamp 1998-4-4 3147 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102941  Achyronychia cooperi George K. Helmkamp 1998-4-4 3143 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102942  Eriogonum trichopes var. trichopes George K. Helmkamp 1998-4-4 3142 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102943  Lupinus arizonicus George K. Helmkamp 1998-4-4 3139 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102944  Pectocarya platycarpa George K. Helmkamp 1998-4-4 3137 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102945  Phacelia distans George K. Helmkamp 1998-4-4 3135 A Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102946  Chaenactis stevioides George K. Helmkamp 1998-4-4 3135 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102947  Mentzelia obscura George K. Helmkamp 1998-4-4 3163 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
  UCR102948  Camissonia refracta George K. Helmkamp 1998-4-4 3168 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
  UCR102949  Ditaxis californica George K. Helmkamp 1998-4-4 3181 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR102950  Brandegea bigelovii George K. Helmkamp 1998-4-4 3169 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
  UCR102951  Linanthus jonesii George K. Helmkamp 1998-4-4 3172 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
  UCR102952  Lotus strigosus George K. Helmkamp 1998-4-4 3153 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR102953  Phacelia crenulata var. ambigua George K. Helmkamp 1998-4-4 3152 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR103290  Lepidium lasiocarpum George K. Helmkamp, E. A. Helmkamp 1998-2-5 2677 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR103292  Isomeris arborea George K. Helmkamp, E. A. Helmkamp 1998-2-5 2667 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR103294  Mentzelia involucrata George K. Helmkamp 1998-4-4 3179 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR103295  Eschscholzia parishii George K. Helmkamp 1998-4-4 3177 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR103296  Orobanche cooperi George K. Helmkamp 1998-4-4 3176 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 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
  UCR103305  Cryptantha barbigera George K. Helmkamp 1998-4-4 3150 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR103306  Loeseliastrum matthewsii George K. Helmkamp 1998-4-4 3151 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR103307  Lupinus arizonicus George K. Helmkamp 1998-4-4 3156 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
  UCR103308  Physalis crassifolia George K. Helmkamp 1998-4-4 3166 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
  UCR103309  Camissonia confusa George K. Helmkamp 1998-4-4 3167 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
  UCR103310  Mentzelia involucrata George K. Helmkamp 1998-4-4 3170 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
  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
  UCR103312  Camissonia brevipes subsp. brevipes George K. Helmkamp 1998-4-4 3159 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
  UCR103313  Gilia stellata George K. Helmkamp 1998-4-4 3175 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR103315  Atriplex hymenelytra George K. Helmkamp, E. A. Helmkamp 1998-2-5 2658 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR103316  Camissonia claviformis subsp. claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-5 2666 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR103317  Lepidium lasiocarpum George K. Helmkamp 1998-2-5 2640 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR103318  Euphorbia polycarpa George K. Helmkamp 1998-2-5 2642 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR103319  Trixis californica var. californica George K. Helmkamp 1998-2-5 2643 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR103320  Geraea canescens George K. Helmkamp, E. A. Helmkamp 1998-2-5 2650 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 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
  UCR103322  Physalis crassifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2653 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR103325  Camissonia claviformis subsp. claviformis George K. Helmkamp 1998-2-5 2637 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR103330  Cryptantha angustifolia George K. Helmkamp 1998-2-5 2635 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR103339  Plantago ovata George K. Helmkamp 1998-2-5 2647 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR103351  Brandegea bigelovii George K. Helmkamp, E. A. Helmkamp 1998-1-17 2540 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103363  Achyronychia cooperi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2747 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103364  Trichoptilium incisum George K. Helmkamp, E. A. Helmkamp 1998-2-18 2748 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103545  Geraea canescens George K. Helmkamp, E. A. Helmkamp 1998-1-17 2528 Riverside Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10 43 Comment
  UCR103546  Cryptantha angustifolia George K. Helmkamp 1998-1-17 2529 Riverside Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10 43 Comment
  UCR103547  Amaranthus albus George K. Helmkamp, E. A. Helmkamp 1998-1-17 2530 A Riverside Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10 43 Comment
  UCR103548  Camissonia claviformis subsp. aurantiaca George K. Helmkamp, E. A. Helmkamp 1998-1-17 2531 Riverside Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10 43 Comment
  UCR103549  Gilia latifolia George K. Helmkamp, E. A. Helmkamp 1998-1-17 2533 Riverside Sonoran (Colorado) Desert, Box Canyon, NE of Mecca and 3.5 mi south of Shavers Well. 244 Comment
  UCR103550  Psathyrotes ramosissima George K. Helmkamp 1998-1-17 2534 Riverside Sonoran (Colorado) Desert, Box Canyon, NE of Mecca and 3.5 mi south of Shavers Well. 244 Comment
  UCR103551  Aristida adscensionis George K. Helmkamp, E. A. Helmkamp 1998-1-17 2536 Riverside Sonoran (Colorado) Desert, Box Canyon, NE of Mecca and 3.5 mi south of Shavers Well. 244 Comment
  UCR103552  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-1-17 2535 Riverside Sonoran (Colorado) Desert, Box Canyon, NE of Mecca and 3.5 mi south of Shavers Well. 244 Comment
  UCR103553  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-1-17 2538 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103554  Perityle emoryi George K. Helmkamp 1998-1-17 2539 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103555  Brandegea bigelovii George K. Helmkamp, E. A. Helmkamp 1998-1-17 2530 Riverside Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10 43 Comment
  UCR103556  Camissonia brevipes subsp. brevipes George K. Helmkamp 1998-1-17 2545 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103557  Chorizanthe brevicornu var. brevicornu George K. Helmkamp, E. A. Helmkamp 1998-1-17 2551 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103558  Lupinus arizonicus George K. Helmkamp, E. A. Helmkamp 1998-1-17 2550 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103561  Ambrosia acanthicarpa George K. Helmkamp, E. A. Helmkamp 1998-1-7 2558 Riverside San Jacinto Valley, 4.7 mi. SE of Florida Ave. (Hemet) on Bautista Rd. 701 Comment
  UCR103562  Artemisia ludoviciana subsp. incompta George K. Helmkamp, E. A. Helmkamp 1998-1-7 2557 Riverside San Jacinto Valley, 4.7 mi. SE of Florida Ave. (Hemet) on Bautista Rd. 701 Comment
  UCR103565  Lotus strigosus George K. Helmkamp, E. A. Helmkamp 1998-2-18 2718 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103566  Camissonia claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-18 2710 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR103567  Lupinus arizonicus George K. Helmkamp, E. A. Helmkamp 1998-2-18 2709 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR103568  Camissonia refracta George K. Helmkamp, E. A. Helmkamp 1998-2-18 2739 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103569  Sphaeralcea ambigua George K. Helmkamp, E. A. Helmkamp 1998-2-18 2738 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103570  Abronia villosa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2712 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR103571  Perityle emoryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2746 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103572  Nama demissa var. demissa George K. Helmkamp, E. A. Helmkamp 1998-2-18 2745 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103573  Cryptantha maritima George K. Helmkamp, E. A. Helmkamp 1998-2-18 2742 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR103574  Tidestromia oblongifolia George K. Helmkamp, E. A. Helmkamp 1998-1-17 2547 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 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
  UCR103576  Eriogonum thomasii George K. Helmkamp, E. A. Helmkamp 1998-1-17 2542 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103577  Plantago ovata George K. Helmkamp 1998-1-17 2543 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 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
  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
  UCR103580  Tidestromia oblongifolia George K. Helmkamp, E. A. Helmkamp 1998-1-17 2544 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103581  Phacelia crenulata var. ambigua George K. Helmkamp, E. A. Helmkamp 1998-1-17 2541 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103584  Perityle emoryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2717 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103585  Cryptantha maritima George K. Helmkamp, E. A. Helmkamp 1998-2-18 2716 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103586  Oligomeris linifolia George K. Helmkamp, E. A. Helmkamp 1998-2-18 2715 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103587  Marina parryi George K. Helmkamp, E. A. Helmkamp 1998-2-18 2728 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103588  Amsinckia menziesii George K. Helmkamp, E. A. Helmkamp 1998-2-18 2727 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103589  Camissonia claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-18 2726 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103590  Ditaxis neomexicana George K. Helmkamp, E. A. Helmkamp 1998-2-18 2725 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103591  Chaenactis stevioides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2722 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103592  Phacelia crenulata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2721 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103593  Plantago ovata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2720 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR103594  Ditaxis neomexicana George K. Helmkamp, E. A. Helmkamp 1998-2-18 2702 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR103596  Gilia maculata George K. Helmkamp 1997-2-26 1309 Riverside Sonoran (Colorado) Desert, Coachella Valley, about 200 yards SE of the jct of Calif. Hwy 62 & Indian Ave. in the NW end of the Valley 488 Comment
  UCR103664  Lupinus arizonicus George K. Helmkamp, E. A. Helmkamp 1998-1-17 2555 Riverside Coachella Valley, alongside Hwy 195 south of Mecca and at the S edge of the Torres Martinez Indian Reservation -30 Comment
  UCR103990  Castilleja exserta George K. Helmkamp 1998-4-3 3093 Riverside Coachella Valley, Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging staion along the creek 747 Comment
  UCR103991  Lotus strigosus George K. Helmkamp 1998-4-3 3086 Riverside Sonoran (Colorado) Desert, West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. north of Tamarack Rd on Cottonwood Rd. 1280 Comment
  UCR103992  Malacothrix glabrata George K. Helmkamp 1998-4-3 3079 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
  UCR103993  Eriophyllum wallacei George K. Helmkamp 1998-4-3 3078 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
  UCR103994  Chaenactis fremontii George K. Helmkamp 1998-4-3 3074 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
  UCR103995  Penstemon centranthifolius George K. Helmkamp 1998-4-3 3073 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Snow Creek area north of Mt. San Jacinto; at edge of stream south of Snow Creek Rd at a point 1.4 mi. south of Calif. Hwy 111 396 Comment
  UCR103996  Gilia maculata George K. Helmkamp 1998-4-3 3070 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR103997  Euphorbia polycarpa George K. Helmkamp 1998-4-3 3067 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR103998  Lupinus concinnus George K. Helmkamp 1998-4-3 3062 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR103999  Orobanche cooperi George K. Helmkamp 1998-4-4 3144 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104000  Psorothamnus emoryi George K. Helmkamp 1998-4-4 3138 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104001  Fagonia pachyacantha George K. Helmkamp 1998-4-4 3158 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
  UCR104002  Chaenactis carphoclinia George K. Helmkamp 1998-4-4 3157 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
  UCR104003  Mentzelia obscura George K. Helmkamp 1998-4-4 3145 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104004  Cryptantha angustifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2652 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 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
  UCR104006  Camissonia cardiophylla subsp. cardiophylla George K. Helmkamp, E. A. Helmkamp 1998-2-5 2661 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR104007  Lupinus truncatus George K. Helmkamp 1998-4-3 3085 Riverside Sonoran (Colorado) Desert, West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. north of Tamarack Rd on Cottonwood Rd. 1280 Comment
  UCR104010  Euphorbia polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-5 2675 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104011  Ditaxis neomexicana George K. Helmkamp, E. A. Helmkamp 1998-2-5 2684 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104012  Mirabilis bigelovii George K. Helmkamp 1998-4-4 3131 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104013  Camissonia claviformis George K. Helmkamp 1998-4-4 3136 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104014  Encelia farinosa var. phenicodonta George K. Helmkamp 1998-4-4 3134 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104015  Eschscholzia minutiflora George K. Helmkamp 1998-4-4 3133 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104016  Encelia frutescens George K. Helmkamp 1998-4-4 3132 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104017  Gilia stellata George K. Helmkamp 1998-4-4 3130 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104018  Rafinesquia neomexicana George K. Helmkamp 1998-4-4 3141 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104019  Malacothrix glabrata George K. Helmkamp 1998-4-4 3140 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104020  Eriophyllum confertiflorum George K. Helmkamp 1998-4-3 3088 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
  UCR104021  Camissonia claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-18 2713 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR104022  Palafoxia arida var. arida George K. Helmkamp, E. A. Helmkamp 1998-2-5 2660 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR104023  Perityle emoryi George K. Helmkamp, E. A. Helmkamp 1998-2-5 2662 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR104024  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 1997-3-5 1334 Riverside San Bernardino Mtns./San Gorgonio Pass, Cabazon, 0.5 mi north of I-10 on Millard Pass Rd. 564 Comment
  UCR104025  Lupinus arizonicus George K. Helmkamp, E. A. Helmkamp 1998-2-5 2678 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104026  Aristida adscensionis George K. Helmkamp, E. A. Helmkamp 1998-2-5 2676 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104027  Aristida adscensionis George K. Helmkamp 1998-4-4 3155 Riverside Sonoran (Colorado) Desert, 7.1 miles north of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station 305 Comment
  UCR104028  Marina parryi George K. Helmkamp 1998-4-4 3154 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
  UCR104029  Lepidium lasiocarpum George K. Helmkamp, E. A. Helmkamp 1998-2-18 2714 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR104030  Eschscholzia parishii George K. Helmkamp 1998-4-4 3160 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
  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
  UCR104032  Monoptilon bellioides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2734 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR104033  Phacelia crenulata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2736 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR104034  Phacelia distans George K. Helmkamp 1998-2-5 2638 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR104035  Camissonia claviformis subsp. claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-5 2655 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 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
  UCR104037  Lasthenia coronaria George K. Helmkamp 1998-4-3 3084 Riverside Sonoran (Colorado) Desert, West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. north of Tamarack Rd on Cottonwood Rd. 1280 Comment
  UCR104038  Eriogonum thomasii George K. Helmkamp, E. A. Helmkamp 1998-2-5 2674 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104040  Gilia angelensis George K. Helmkamp 1998-4-3 3083 Riverside Sonoran (Colorado) Desert, West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. north of Tamarack Rd on Cottonwood Rd. 1280 Comment
  UCR104041  Eriogonum pusillum George K. Helmkamp 1998-4-3 3066 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  UCR104780  Dudleya lanceolata George K. Helmkamp 1997-4-3 3071 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river. 396 Comment
  UCR104799  Fagonia laevis George K. Helmkamp, E. A. Helmkamp 1998-2-18 2733 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR104801  Perityle emoryi George K. Helmkamp 1998-2-5 2648 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR104802  Hyptis emoryi George K. Helmkamp 1998-2-5 2649 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR104804  Pityrogramma triangularis var. triangularis George K. Helmkamp, E. A. Helmkamp 1998-1-7 2559 Riverside San Jacinto Valley, 4.7 mi. SE of Florida Ave. (Hemet) on Bautista Rd. 701 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
  UCR104807  Palafoxia arida George K. Helmkamp, E. A. Helmkamp 1998-2-18 2711 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR104808  Dalea mollissima George K. Helmkamp, E. A. Helmkamp 1998-2-18 2741 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 Comment
  UCR104809  Camissonia boothii subsp. desertorum George K. Helmkamp, E. A. Helmkamp 1998-2-18 2743 Riverside Chuckwalla Mtns, Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. 488 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
  UCR104818  Chaenactis carphoclinia George K. Helmkamp, E. A. Helmkamp 1998-2-18 2732 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR104819  Sorghum halepense George K. Helmkamp, E. A. Helmkamp 1998-1-17 2556 Riverside Coachella Valley, alongside Hwy 195 south of Mecca and at the S edge of the Torres Martinez Indian Reservation -30 Comment
  UCR104821  Phacelia crenulata var. ambigua George K. Helmkamp, E. A. Helmkamp 1998-2-5 2663 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR104822  Euphorbia setiloba George K. Helmkamp 1998-4-4 3161 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
  UCR104824  Hyptis emoryi George K. Helmkamp 1998-4-4 3178 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR104829  Euphorbia polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-5 2664 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR104833  Chorizanthe brevicornu var. brevicornu George K. Helmkamp 1998-2-5 2639 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR104834  Eriogonum thomasii George K. Helmkamp 1998-4-4 3171 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
  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
  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
  UCR104845  Cryptantha angustifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2668 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104846  Nicotiana obtusifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2665 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 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
  UCR104860  Sonchus oleraceus George K. Helmkamp, E. A. Helmkamp 1998-2-18 2729 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR104873  Dalea mollissima George K. Helmkamp, E. A. Helmkamp 1998-2-5 2673 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR104874  Ambrosia dumosa George K. Helmkamp 1998-4-4 3148 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR104880  Muhlenbergia microsperma George K. Helmkamp, E. A. Helmkamp 1998-2-18 2724 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR104963  Muhlenbergia microsperma George K. Helmkamp, E. A. Helmkamp 1998-2-18 2731 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR104965  Brandegea bigelovii George K. Helmkamp, E. A. Helmkamp 1998-2-18 2730 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR106416  Camissonia intermedia George K. Helmkamp, A. C. Sanders 1997-3-15 1501 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 Comment
  UCR106417  Saltugilia australis George K. Helmkamp, A. C. Sanders 1997-3-15 1500 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 Comment
  UCR106418  Senecio californicus George K. Helmkamp, A. C. Sanders 1997-3-15 1493 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 Comment
  UCR106419  Camissonia bistorta George K. Helmkamp, A. C. Sanders 1997-3-15 1491 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 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
  UCR106421  Athysanus pusillus George K. Helmkamp, A. C. Sanders 1997-3-15 1488 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 Comment
  UCR106422  Gilia angelensis George K. Helmkamp, A. C. Sanders 1997-3-15 1487 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 Comment
  UCR106423  Rafinesquia californica George K. Helmkamp, A. C. Sanders 1997-3-15 1486 Riverside Skinner Lake, Grassland at base of Bachelor Mtn. and adjoining chapararal. 488 Comment
  UCR107261  Cyperus eragrostis George K. Helmkamp, E. A. Helmkamp 1998-8-17 4446 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR107283  Keckiella cordifolia George K. Helmkamp, E. A. Helmkamp 1998-8-17 4444 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  UCR107908  Cardamine hirsuta George K. Helmkamp, E. A. Helmkamp 1997-1-8 1278 Riverside Sonoran (Colorado) Desert, Palm Springs. Lawn at El Cielo and Tahquitz-McCallum 152 Comment
  UCR110938  Lupinus concinnus George K. Helmkamp 1998-6-27 4097 Riverside Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring 1585 Comment
  UCR110939  Bromus marginatus George K. Helmkamp 1998-6-27 4118 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
  UCR110940  Lithophragma affine George K. Helmkamp 1998-6-27 4117 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
  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
  UCR110958  Camissonia strigulosa George K. Helmkamp 1998-6-27 4103 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
  UCR110959  Cryptantha intermedia George K. Helmkamp 1998-6-27 4094 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
  UCR110960  Eriophyllum confertiflorum var. confertiflorum George K. Helmkamp 1998-6-27 4088 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
  UCR110961  Lupinus excubitus George K. Helmkamp 1998-6-27 4089 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
  UCR110962  Melilotus indicus George K. Helmkamp 1998-6-27 4090 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
  UCR110963  Penstemon centranthifolius George K. Helmkamp 1998-6-27 4091 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
  UCR110964  Phacelia brachyloba George K. Helmkamp 1998-6-27 4093 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
  UCR110965  Delphinium parryi subsp. parryi George K. Helmkamp 1998-6-27 4095 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
  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
  UCR110967  Eriodictyon trichocalyx George K. Helmkamp 1998-6-27 4098 Riverside Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring 1585 Comment
  UCR110968  Castilleja minor George K. Helmkamp 1998-6-27 4099 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
  UCR110969  Penstemon clevelandii George K. Helmkamp 1998-6-27 4105 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
  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
  UCR110971  Lotus nevadensis var. nevadensis George K. Helmkamp 1998-6-27 4130 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110972  Gilia diegensis George K. Helmkamp 1998-6-27 4102 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
  UCR110973  Mimulus parishii George K. Helmkamp 1998-6-27 4100 Riverside Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring 1585 Comment
  UCR110974  Hulsea vestita subsp. callicarpha George K. Helmkamp 1998-6-27 4114 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
  UCR110975  Adenostoma fasciculatum George K. Helmkamp 1998-6-27 4087 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
  UCR110976  Camissonia intermedia George K. Helmkamp 1998-6-27 4086 Riverside Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring 1585 Comment
  UCR110979  Chaenactis parishii George K. Helmkamp 1998-6-27 4092 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
  UCR110980  Penstemon spectabilis var. spectabilis George K. Helmkamp 1998-6-27 4085 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
  UCR110981  Trichostema parishii George K. Helmkamp 1998-6-27 4084 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
  UCR110982  Carex fracta George K. Helmkamp 1998-6-27 4123 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110983  Antirrhinum coulterianum George K. Helmkamp 1998-6-27 4081 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
  UCR110984  Hymenopappus filifolius var. lugens George K. Helmkamp 1998-6-27 4122 Riverside Santa Rosa Mtns., 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), below Mountain Home Spring 1799 Comment
  UCR110985  Lathyrus vestitus var. vestitus George K. Helmkamp 1998-6-27 4119 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
  UCR110986  Mimulus moschatus George K. Helmkamp 1998-6-27 4129 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110987  Sarcodes sanguinea George K. Helmkamp 1998-6-27 4128 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110988  Ribes cereum var. cereum George K. Helmkamp 1998-6-27 4127 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110989  Ribes nevadense George K. Helmkamp 1998-6-27 4126 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110990  Lotus argyraeus var. argyraeus George K. Helmkamp 1998-6-27 4125 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110991  Lupinus hyacinthinus George K. Helmkamp 1998-6-27 4124 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR110992  Arctostaphylos pringlei subsp. drupacea George K. Helmkamp 1998-6-27 4121 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
  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
  UCR110994  Cryptantha micrantha var. lepida George K. Helmkamp 1998-6-27 4113 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
  UCR110995  Monardella nana subsp. arida George K. Helmkamp 1998-6-27 4111 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
  UCR110996A  Gilia ochroleuca George K. Helmkamp 1998-6-27 4102 A 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
  UCR110996B  Allophyllum glutinosum George K. Helmkamp 1998-6-27 4102 A 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
  UCR110997  Vicia americana var. americana George K. Helmkamp 1998-6-27 4115 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
  UCR110998  Delphinium parishii subsp. parishii George K. Helmkamp 1998-6-27 4116 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
  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
  UCR116688  Juncus rugulosus George K. Helmkamp 1974-7-14 s.n. Riverside Santa Ana Mtns. region, Ortega Oaks Park on Hwy 74 610 Comment
  UCR116696  Chorizanthe fimbriata George K. Helmkamp 1974-7-16 s.n. Riverside Santa Ana Mtns. region, Ortega Oaks Park on Hwy 74 610 Comment
  UCR116697  Calycadenia tenella George K. Helmkamp 1974-7-16 s.n. Riverside Santa Ana Mtns. region, Ortega Oaks Park on Hwy 74 610 Comment
  UCR118185  Eriogonum molestum George K. Helmkamp, E. A. Helmkamp 1998-6-27 4073 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  UCR118640  Camissonia confusa George K. Helmkamp 1998-4-3 3065 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 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
  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
  UCR122519  Lupinus excubitus var. austromontanus George K. Helmkamp, E. A. Helmkamp 2001-5-20 6686 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122520  Erigeron divergens George K. Helmkamp, E. A. Helmkamp 2001-5-20 6687 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122521  Collinsia concolor George K. Helmkamp, E. A. Helmkamp 2001-5-20 6663 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122523  Penstemon spectabilis George K. Helmkamp, E. A. Helmkamp 2001-5-20 6683 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122524  Nemophila menziesii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6676 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122525  Lupinus concinnus George K. Helmkamp, E. A. Helmkamp 2001-5-20 6671 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122526  Plagiobothrys tenellus George K. Helmkamp, E. A. Helmkamp 2001-5-20 6667 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122527  Nemophila menziesii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6665 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122528  Stipa parishii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6685 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122529  Abronia villosa var. aurita George K. Helmkamp, E. A. Helmkamp 2001-5-20 6682 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122530  Calochortus palmeri var. munzii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6684 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122531  Arctostaphylos pringlei subsp. drupacea George K. Helmkamp, E. A. Helmkamp 2001-5-20 6681 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122532  Elymus elymoides subsp. elymoides George K. Helmkamp, E. A. Helmkamp 2001-5-20 6680 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122533  Trichostema parishii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6679 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122534  Galium andrewsii subsp. andrewsii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6678 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122535  Pentachaeta aurea George K. Helmkamp, E. A. Helmkamp 2001-5-20 6661 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122536  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 2001-5-20 6662 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122537  Sidalcea malviflora subsp. sparsifolia George K. Helmkamp, E. A. Helmkamp 2001-5-20 6664 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122538  Cryptantha intermedia George K. Helmkamp, E. A. Helmkamp 2001-5-20 6666 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122539  Gilia ochroleuca subsp. exilis George K. Helmkamp, E. A. Helmkamp 2001-5-20 6668 Riverside San Jacinto Mtns., 0.3 mi NW of Keen Camp Summit along CA-74 1494 Comment
  UCR122540  Cryptantha intermedia George K. Helmkamp, E. A. Helmkamp 2001-5-20 6669 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122541  Eleocharis macrostachya George K. Helmkamp, E. A. Helmkamp 2001-5-20 6670 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122542  Pentachaeta aurea George K. Helmkamp, E. A. Helmkamp 2001-5-20 6672 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122543  Chaenactis glabriuscula var. glabriuscula George K. Helmkamp, E. A. Helmkamp 2001-5-20 6673 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122544  Astragalus douglasii var. parishii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6674 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122545  Lathyrus vestitus subsp. vestitus George K. Helmkamp, E. A. Helmkamp 2001-5-20 6675 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR122546  Castilleja applegatei subsp. martini George K. Helmkamp, E. A. Helmkamp 2001-5-20 6677 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UCR122564  Plagiobothrys collinus George K. Helmkamp, E. A. Helmkamp 1998-4-24 3375 Riverside San Jacinto Mountains, 0.1 mi east of the junction of Calif. Hwy 74 and Calif. Hwy 371, SE side of the mountains 1494 Comment
  UCR122566  Stipa parishii George K. Helmkamp, E. A. Helmkamp 1998-6-27 4082 Riverside Santa Rosa Mountains., Santa Rosa Mountain Road, 3.3 mi south of Calif. Hwy 74 1601 Comment
  UCR122569  Polygonum hydropiperoides George K. Helmkamp, E. A. Helmkamp 2000-8-29 5985 Riverside Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea -67 Comment
  UCR122570  Sesbania herbacea George K. Helmkamp, E. A. Helmkamp 2000-8-29 5984 Riverside Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea -67 Comment
  UCR122571  Ludwigia peploides George K. Helmkamp, E. A. Helmkamp 2000-8-29 5981 Riverside Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea -67 Comment
  UCR122572  Tamarix ramosissima George K. Helmkamp, E. A. Helmkamp 2000-8-29 5982 Riverside Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea -67 Comment
  UCR122573  Atriplex lentiformis George K. Helmkamp 2000-8-29 5983 Riverside Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea -67 Comment
  UCR122584  Phoradendron villosum George K. Helmkamp 1995-11-16 119 Riverside San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor) 1616 Comment
  UCR122585  Eriogonum molestum George K. Helmkamp 1995-11-16 101 Riverside San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor) 1616 Comment
  UCR122586  Eriogonum davidsonii George K. Helmkamp 1995-11-16 100 Riverside San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor) 1616 Comment
  UCR122739  Sphaeralcea ambigua subsp. rosacea George K. Helmkamp, E. A. Helmkamp 1998-4-24 3382 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122740  Lotus argophyllus var. argophyllus George K. Helmkamp, E. A. Helmkamp 1998-4-24 3381 Riverside Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains 1296 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
  UCR122742  Astragalus palmeri George K. Helmkamp, E. A. Helmkamp 1998-4-24 3379 Riverside Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains 1296 Comment
  UCR122743  Mirabilis bigelovii var. retrorsa George K. Helmkamp, E. A. Helmkamp 1998-4-24 3377 Riverside Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains 1296 Comment
  UCR122744  Senna covesii George K. Helmkamp, E. A. Helmkamp 1998-4-24 3378 Riverside Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains 1296 Comment
  UCR122745  Trichoptilium incisum George K. Helmkamp, E. A. Helmkamp 1998-4-24 3388 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122746  Ditaxis neomexicana George K. Helmkamp, E. A. Helmkamp 1998-4-24 3387 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122747  Bernardia myricifolia George K. Helmkamp, E. A. Helmkamp 1998-4-24 3386 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122748  Chaenactis fremontii George K. Helmkamp, E. A. Helmkamp 1998-4-24 3385 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122749  Eriophyllum wallacei George K. Helmkamp, E. A. Helmkamp 1998-4-24 3383 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122750  Emmenanthe penduliflora George K. Helmkamp, E. A. Helmkamp 1998-4-24 3384 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR122769  Lotus rigidus George K. Helmkamp, E. A. Helmkamp 1998-4-24 3376 Riverside Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains 1296 Comment
  UCR122770  Lasthenia gracilis George K. Helmkamp, E. A. Helmkamp 1998-4-24 3374 Riverside San Jacinto Mountains, 0.1 mi east of the junction of Calif. Hwy 74 and Calif. Hwy 371, SE side of the mountains 1494 Comment
  UCR124000  Caesalpinia virgata George K. Helmkamp, E. A. Helmkamp 2001-4-14 6466 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR124001  Eriogonum thomasii George K. Helmkamp, E. A. Helmkamp 2001-4-14 6464 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR124002  Psorothamnus schottii George K. Helmkamp, E. A. Helmkamp 2001-4-14 6463 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR124003  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 2001-4-14 6467 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR124004  Phacelia crenulata var. ambigua George K. Helmkamp, E. A. Helmkamp 2001-4-14 6465 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR130050  Psorothamnus spinosus George K. Helmkamp, E. A. Helmkamp 1998-6-27 4106 Riverside Coachella Valley., Along Calif. Hwy 74 at the south end of Palm Desert 290 Comment
  UCR130220  Calochortus palmeri var. palmeri George K. Helmkamp, E. A. Helmkamp 1998-6-27 4083 Riverside Santa Rosa Mountains., Santa Rosa Mountain Road, 3.3 mi south of Calif. Hwy 74 1601 Comment
  UCR130221  Astragalus purshii George K. Helmkamp, E. A. Helmkamp 1998-6-27 4120 A Riverside Santa Rosa Mountains., Santa Rosa Mountain Road, 5.8 miles southeast of Calif. Hwy 74 1799 Comment
  UCR130222  Gilia diegensis George K. Helmkamp, E. A. Helmkamp 1998-6-27 4109 Riverside Santa Rosa Mountains., Santa Rosa Mountain Road, 5.8 miles southeast of Calif. Hwy 74 1799 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
  UCR130705  Solanum xanti George K. Helmkamp, E. A. Helmkamp 1998-6-27 4069 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 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
  UCR130707  Frasera parryi George K. Helmkamp, E. A. Helmkamp 1998-6-27 4071 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  UCR130708  Carex fracta George K. Helmkamp, E. A. Helmkamp 1998-6-27 4072 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  UCR130709  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 1998-6-27 4074 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 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
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Nov 13 2018
  UCR130711  Mirabilis multiflora var. pubescens George K. Helmkamp, E. A. Helmkamp 1998-6-27 4077 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  UCR130712  Abronia villosa var. aurita George K. Helmkamp, E. A. Helmkamp 1998-6-27 4078 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  UCR130713  Centaurium venustum George K. Helmkamp, E. A. Helmkamp 1998-6-27 4079 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
  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
  UCR132766  Cryptantha barbigera var. fergusoniae George K. Helmkamp 1984-5-2 D- 10 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR132767  Cryptantha decipiens George K. Helmkamp 1984-5-2 D- 27 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR137634  Cryptantha barbigera var. fergusoniae George K. Helmkamp 1998-2-5 2645 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR13972  Polygonum lapathifolium George K. Helmkamp 1973-10-3 s.n. Riverside San Jacinto Mtns., Strawberry Creek, near Idyllwild Comment
  UCR14010  Lessingia glandulifera var. glandulifera George K. Helmkamp 1973-10-3 s.n. Riverside San Jacinto Mtns., Strawberry Creek, near Idyllwild Comment
  UCR14021A  Gutierrezia sarothrae George K. Helmkamp 1973-10-3 s.n. Riverside San Jacinto Mtns, On Palms to Pines Hwy at junction to Idyllwild [Mountain Center] Comment
  UCR14391  Cyperus rotundus George K. Helmkamp 1974-7-14 s.n. Riverside Riverside, Massachusetts at Iowa Street Comment
  UCR14393  Phalaris aquatica George K. Helmkamp 1974-7-14 s.n. Riverside Santa Ana Mtns. region, Ortega Oaks Park on Hwy 74 610 Comment
  UCR15231  Pulicaria paludosa George K. Helmkamp 1974-1 s.n. Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Whitewater Canyon, where road crosses stream just below fish hatchery 640 Comment
  UCR15367  Lasthenia glabrata subsp. coulteri George K. Helmkamp 1977-3-5 s.n. Riverside Perris-Aguanga Basin, west side of the San Jacinto River, 0.5 mi south of the Ramona Expressway 435 Comment
  UCR15388  Petalonyx linearis George K. Helmkamp 1977-3-20 s.n. Riverside western Colorado Desert, wash alongside Deep Canyon Reserve 305 Comment
  UCR15457  Cryptantha holoptera George K. Helmkamp 1977-3-12 s.n. Riverside Sonoran (Colorado) Desert, Deep Canyon at the bottom of the main wash near marker 40. South of Palm Desert 305 Comment
  UCR15462  Malacothrix stebbinsii George K. Helmkamp 1977-3-12 s.n. Riverside Sonoran (Colorado) Desert, Deep Canyon at the bottom of the main wash near marker 40. South of Palm Desert 305 Comment
  UCR15523  Chorizanthe polygonoides var. longispina George K. Helmkamp 1978-6-1 s.n. Riverside Santa Rosa Plateau, roadside, 7 miles [west] ot Murrieta Comment
  UCR15527  Navarretia prostrata George K. Helmkamp 1978-6-1 s.n. Riverside Santa Ana Mountains, Santa Rosa Plateau, vernal pool 7 mi [west] of Murrieta near the origin of DeLuz Creek 671 Comment
  UCR15593  Stylocline gnaphaloides George K. Helmkamp 1978-6-1 s.n. Riverside Santa Ana Mountains, Santa Rosa Plateau, vernal pool 7 mi [west] of Murrieta near the origin of DeLuz Creek 671 Comment
  UCR15606  Filago gallica George K. Helmkamp 1978-6-1 s.n. Riverside Santa Ana Mountains, Santa Rosa Plateau, vernal pool 7 mi [west] of Murrieta near the origin of DeLuz Creek 671 Comment
  UCR15634  Eleocharis acicularis var. acicularis George K. Helmkamp 1978-6-1 s.n. Riverside Santa Ana Mountains, Santa Rosa Plateau, vernal pool 7 mi [west] of Murrieta near the origin of DeLuz Creek 671 Comment
  UCR15635  Eleocharis bella George K. Helmkamp 1978-6-1 s.n. Riverside Santa Ana Mountains, Santa Rosa Plateau, vernal pool 7 mi [west] of Murrieta near the origin of DeLuz Creek 671 Comment
  UCR157438  Ditaxis neomexicana George K. Helmkamp 1998-4-4 3180 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR15893  Cryptantha racemosa George K. Helmkamp 1979-4-18 s.n. Riverside Little San Bernardino Mtns/Sonoran (Colorado) Desert, Berdoo Canyon, 3.5 mi north of Dillon Road 457 Comment
  UCR159151  Phacelia George K. Helmkamp 1998-4-4 3129 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR160750  Gilia George K. Helmkamp, E. A. Helmkamp 1998-4-24 3373 Riverside San Jacinto Mountains, 0.1 mi east of the junction of Calif. Hwy 74 and Calif. Hwy 371, SE side of the mountains 1494 Comment
  UCR18355  Festuca myuros George K. Helmkamp 1977-5-19 s.n. Riverside San Jacinto Mtns., Near Twins Pines Turnoff on Hwy 243, Valley [Hi Co.] Park area 1220 Comment
  UCR23239  Psoralea rigida George K. Helmkamp 1981-7-27 s.n. Riverside San Jacinto Mtns, Beside Hwy 371, 200 yards SW of junction with Hwy 74. Burnt Valley area 1372 Comment
  UCR24788  Trifolium monanthum var. grantianum George K. Helmkamp 1981-7-5 s.n. Riverside San Jacinto Mountains, spring alongside the Black Mountain Road, 6 mi from the Banning to Idyllwild Hwy (243) Comment
  UCR24804  Nierembergia hippomanica George K. Helmkamp 1981-5-20 s.n. Riverside Transverse Range/Sonoran (Colorado) Desert, Dry Morongo Wash, 100 yards downstream from the bridge at the San Bernardino County Line 732 Comment
  UCR24806  Carex sartwelliana George K. Helmkamp 1981-7-5 s.n. Riverside San Jacinto Mountains, spring alongside the Black Mountain Road, 6 mi from the Banning to Idyllwild Hwy (243) Comment
  UCR24807  Carex fracta George K. Helmkamp 1981-7-5 s.n. Riverside San Jacinto Mountains, spring alongside the Black Mountain Road, 6 mi from the Banning to Idyllwild Hwy (243) Comment
  UCR24810  Carex alma George K. Helmkamp 1981-8-23 s.n. Riverside San Jacinto Mountains, north side of the mountains at Snow Creek near Snow Creek Village, c. 200 yards upstream from the old stone house. 393 Comment
  UCR24981  Crypsis schoenoides George K. Helmkamp 1979-8-3 s.n. Riverside San Jacinto Valley, NE end of Quail Lake (Lake San Jacinto, Mystic Lake) near the shoreline Comment
  UCR25014  Carex alma George K. Helmkamp 1981-6-25 s.n. Riverside San Jacinto Mountains, Idyllwild. Strawberry Creek c. 200 yards south of the bridge near the U.S.C. campus. Comment
  UCR26563  Euphorbia polycarpa var. hirtella George K. Helmkamp, R. L. Kobaly 1982-5-6 s.n. Riverside San Jacinto Mtns, N foot, at Snow Creek. Beside Snow Creek Road between the village and the wash. 488 Comment
  UCR29257  Camissonia refracta George K. Helmkamp 1983-3-24 383- 2 Riverside Chuckwalla Mtns, E base of the Mtns at Graham Pass Road 427 Comment
  UCR29258  Mentzelia involucrata George K. Helmkamp 1983-3-24 383- 01 Riverside Sonoran (Colorado) Desert, N side of Chuckwalla Mtns., Chuckwalla Springs Road, 5 mi. west of Graham Pass Road. 366 Comment
  UCR29780  Calycoseris wrightii George K. Helmkamp 1983-3-24 383- 14 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29781  Pectocarya heterocarpa George K. Helmkamp 1983-3-24 383- 12 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29782  Pectocarya platycarpa George K. Helmkamp 1983-3-24 383- 13 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29817  Chorizanthe corrugata George K. Helmkamp 1983-3-24 383- 8 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29818  Lotus tomentellus George K. Helmkamp 1983-3-24 383- 18 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29819  Nama pusilla George K. Helmkamp 1983-3-24 383- 9 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29820  Langloisia setosissima George K. Helmkamp 1983-3-24 383- 11 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29821  Plantago ovata George K. Helmkamp 1983-3-24 383- 17 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29823  Gilia scopulorum George K. Helmkamp 1983-3-24 383- 16 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29824  Gilia stellata George K. Helmkamp 1983-3-24 383- 15 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29848  Chaenactis stevioides George K. Helmkamp 1983-3-24 383- 20 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR29849  Psathyrotes ramosissima George K. Helmkamp 1983-3-24 383- 7 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at junction of the Graham Pass and Chuckwalla Springs Roads 229 Comment
  UCR29850  Mentzelia obscura George K. Helmkamp 1983-3-24 383- 06 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at junction of the Graham Pass and Chuckwalla Springs Roads 229 Comment
  UCR29851  Porophyllum gracile George K. Helmkamp 1983-3-24 383- 5 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at junction of the Graham Pass and Chuckwalla Springs Roads 229 Comment
  UCR29852  Eriophyllum lanosum George K. Helmkamp 1983-3-24 383- 4 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at junction of the Graham Pass and Chuckwalla Springs Roads 229 Comment
  UCR29853  Chaenactis carphoclinia var. carphoclinia George K. Helmkamp 1983-3-24 383- 19 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR30058  Bouteloua aristidoides George K. Helmkamp 1983-4-5 483- 36 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30059  Aristida adscensionis George K. Helmkamp 1983-4-5 483- 28 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30071  Cryptantha maritima George K. Helmkamp 1983-4-5 483 11 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30072  Cryptantha barbigera George K. Helmkamp 1983-4-5 483 16 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 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
  UCR30074  Atrichoseris platyphylla George K. Helmkamp 1983-4-5 483- 42 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30075  Monoptilon bellioides George K. Helmkamp 1983-4-5 483- 22 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30076  Perityle emoryi George K. Helmkamp 1983-4-5 483- 7 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30077  Peucephyllum schottii George K. Helmkamp 1983-4-5 483- 13 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30078  Pleurocoronis pluriseta George K. Helmkamp 1983-4-5 483- 19 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 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
  UCR30084  Gilia latifolia George K. Helmkamp 1983-4-5 483- 41 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30085  Mohavea confertiflora George K. Helmkamp 1983-4-5 483- 9 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30086  Chorizanthe rigida George K. Helmkamp 1983-4-5 483 43 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30088  Chorizanthe brevicornu var. brevicornu George K. Helmkamp 1983-4-5 483 26 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30089  Eschscholzia minutiflora George K. Helmkamp 1983-4-5 483- 35 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30090  Eschscholzia parishii George K. Helmkamp 1983-4-5 483 2 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30091  Mentzelia obscura George K. Helmkamp 1983-4-5 483- 25 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30092  Salvia columbariae George K. Helmkamp 1983-4-5 483- 27 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30093  Nama demissa George K. Helmkamp 1983-4-5 483- 40 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30094  Phacelia crenulata George K. Helmkamp 1983-4-5 483- 30 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30095  Nemacladus orientalis George K. Helmkamp 1983-4-5 483- 44 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30096  Nemacladus tenuis var. aliformis George K. Helmkamp 1983-4-5 483- 45 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30097  Achyronychia cooperi George K. Helmkamp 1983-4-5 483 37 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  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
  UCR30099  Thelypodium lasiophyllum George K. Helmkamp 1983-4-5 483- 18 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30100  Camissonia brevipes George K. Helmkamp 1983-4-5 483- 38 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30101  Orobanche cooperi George K. Helmkamp 1983-4-5 483 32 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30102  Sphaeralcea ambigua George K. Helmkamp 1983-4-5 483- 14 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR30103  Eriogonum deflexum George K. Helmkamp 1983-4-5 483- 12 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR34446  Cryptantha angustifolia George K. Helmkamp 1983-4-5 483 33 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR37614  Camissonia californica George K. Helmkamp 1984-5-2 D- 3 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37615  Baccharis sergiloides George K. Helmkamp 1984-5-2 D- 2 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37616  Mimulus guttatus George K. Helmkamp 1984-5-2 D 20 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37617  Gnaphalium palustre George K. Helmkamp 1984-5-2 D- 21 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37618  Mirabilis bigelovii George K. Helmkamp 1984-5-2 D 24 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 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
  UCR37620  Centaurium exaltatum George K. Helmkamp 1984-5-2 D- 4 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37626  Juncus bufonius George K. Helmkamp 1984-5-2 D 18 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37627  Physalis crassifolia George K. Helmkamp 1984-5-2 D 19 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37628  Cryptantha racemosa George K. Helmkamp 1984-5-2 D 14 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37629  Astragalus tricarinatus George K. Helmkamp 1984-5-5 E 5 Riverside Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve 549 Comment
  UCR37635  Lupinus concinnus George K. Helmkamp 1984-5-2 D- 8 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37636  Perityle emoryi George K. Helmkamp 1984-5-2 D- 5 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37637  Chilopsis linearis George K. Helmkamp 1984-5-5 E- 9 Riverside Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve 549 Comment
  UCR37638  Mimulus floribundus George K. Helmkamp 1984-5-5 E 10 Riverside Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve 549 Comment
  UCR37676  Camissonia cardiophylla George K. Helmkamp 1984-5-5 E 6 Riverside Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve 549 Comment
  UCR37677  Filago depressa George K. Helmkamp 1984-5-5 E- 2 Riverside Transverse Range, Little San Bernardino Mountains, Big Morongo Canyon, 4 road miles below the caretaker's house at the Big Morongo Preserve 549 Comment
  UCR37678  Medicago sativa George K. Helmkamp 1984-5-2 D- 01 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR37679  Samolus parviflorus George K. Helmkamp 1984-5-2 D 22 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR39229  Salix laevigata George K. Helmkamp 1985-4-5 274 Riverside Sonoran (Colorado) Desert; Little San Bernardino Mtns., South of Morongo Valley. Big Morongo Canyon 4 mi downstream from the Big Morongo Reserve Kiosk 579 Comment
  UCR40591  Eriogonum thomasii George K. Helmkamp 1983-4-5 483- 34 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR41701  Lupinus hirsutissimus George K. Helmkamp 1986-4-7 755 Riverside Sonoran (Colorado) Desert, S of Morongo Valley. First canyon east of and parallel to Hwy 62 north of Indian Ave. 579 Comment
  UCR58164  Helianthus californicus 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
  UCR58165  Chenopodium fremontii 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
  UCR58166  Lotus argophyllus George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns., Edge of Lake Hemet 1400 Comment
  UCR58302  Eriastrum sapphirinum George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns, N slope of Thomas Mtn, 1 mi. SW of Hwy 74 on Thomas Mtn Road 1500 Comment
  UCR58303  Malacothamnus fasciculatus 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
  UCR58304  Machaeranthera canescens subsp. canescens George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns, N slope of Thomas Mtn, 1 mi. SW of Hwy 74 on Thomas Mtn Road 1500 Comment
  UCR58305  Cordylanthus rigidus George K. Helmkamp 1989-10-7 s.n. Riverside San Bernardino Mtns., N edge of the fish hatchery in Whitewater Canyon, north of I-10 700 Comment
  UCR58450  Amaranthus powellii George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns., Edge of Lake Hemet 1400 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
  UCR58453  Polygonum lapathifolium George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns., Edge of Lake Hemet 1400 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
  UCR58456  Cordylanthus nevinii 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
  UCR58459  Rumex maritimus George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns., Edge of Lake Hemet 1400 Comment
  UCR58460  Deinandra mohavensis 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
Read comments
Jan 8 2013
  UCR59181  Portulaca oleracea George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, S of Ripley at 32nd Street and Rannells Blvd 75 Comment
  UCR59698  Eriochloa acuminata George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, Colorado River Valley; hayfield on W side of state Hwy 78, 0.7 mi north of Palo Verde 71 Comment
  UCR59699  Leptochloa filiformis George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, S of Ripley at 32nd Street and Rannells Blvd 75 Comment
  UCR59700  Sesbania herbacea George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, Colorado River Valley; hayfield on W side of state Hwy 78, 0.7 mi north of Palo Verde 71 Comment
  UCR59701  Amaranthus palmeri George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, Blythe 75 Comment
  UCR59719  Malvella leprosa George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, S of Ripley at 32nd Street and Rannells Blvd 75 Comment
  UCR59720  Sesbania herbacea George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, S of Ripley at 32nd Street and Rannells Blvd 75 Comment
  UCR59838  Sesbania herbacea George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59839  Chloracantha spinosa George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59841  Eriochloa contracta George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59842  Malvella leprosa George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59844  Leptochloa uninervia George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59845  Polygonum argyrocoleon George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59846  Leptochloa filiformis George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR59847  Echinochloa colona George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, W of Blythe, c. 0.5 mi. south of Hwy I-10 ['I-8'] , at Seeley Ave. [=16th Ave.] and Calif. Hwy 78 79 Comment
  UCR64000  Pectocarya anisocarpa George K. Helmkamp 1984-5-2 D- 29 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR71829  Gilia maculata George K. Helmkamp 1992-4-11 92- 3 Riverside Whitewater River, Sandy bench in Whitewater River wash, 0.4 mi. north of pumping station and 150 yds. east of road (c. 1/2 way between Bonnie Bell and station) 550 Comment
  UCR71844  Nemacladus orientalis George K. Helmkamp 1992-4-16 92- 06 Riverside Western Colorado Desert, Coachella Valley, Mission Creek, 0.4 mi. south of Indian Avenue, on old Hwy 62 500 Comment
  UCR71845  Nemacladus longiflorus var. breviflorus George K. Helmkamp 1995-4-16 92- 5 Riverside Sonoran (Colorado) Desert, Coachella Valley; Mission Creek, 0.4 mi. south of Indian Avenue on old Hwy 62 500 Comment
  UCR71847  Gilia maculata George K. Helmkamp 1992-4-16 92- 4 Riverside Western Colorado Desert, Coachella Valley, Mission Creek, 0.4 mi. south of Indian Avenue, on old Hwy 62 500 Comment
  UCR85432  Stillingia spinulosa George K. Helmkamp 1994-4-26 88- 2 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR85433  Krameria erecta George K. Helmkamp 1994-4-26 88- 3 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR85434  Cryptantha angustifolia George K. Helmkamp 1994-4-26 88 6 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR85435  Euphorbia ocellata George K. Helmkamp 1994-4-26 88 7 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR85437  Eriastrum eremicum George K. Helmkamp 1994-4-26 88- 8 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR85750  Hilaria rigida George K. Helmkamp 1994-4-26 88- 01 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR86012  Panicum urvilleanum George K. Helmkamp 1994-4-26 88- 5 Riverside Western Colorado Desert, Indio Hills; north of the landfill on Edom Hill 213 Comment
  UCR87985  Astragalus lentiginosus var. coachellae George K. Helmkamp 1994-3-8 41- 11 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89546  Brassica tournefortii George K. Helmkamp 1994-3-8 41 5 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89547  Fagonia laevis George K. Helmkamp 1994-3-10 43- 3 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
  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
  UCR89558  Tiquilia plicata George K. Helmkamp 1994-3-10 42- 01 Riverside Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north 122 Comment
  UCR89559  Camissonia claviformis subsp. aurantiaca George K. Helmkamp 1994-3-10 42 5 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
  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
  UCR89561  Lupinus arizonicus George K. Helmkamp 1994-3-10 42- 08 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
  UCR89562  Chaenactis fremontii George K. Helmkamp 1994-3-10 42- 13 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
  UCR89563  Cryptantha barbigera George K. Helmkamp 1994-3-10 42 15 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
  UCR89564  Schismus arabicus George K. Helmkamp 1994-3-10 42- 14 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
  UCR89565  Atriplex hymenelytra George K. Helmkamp 1994-3-10 42 24 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
  UCR89566  Larrea tridentata George K. Helmkamp 1994-3-8 41 16 Riverside Western Colorado Desert, SW-facing slope at the junction of [Date] Palm Dr. and Varner Rd., below Edom Hill, 'Indio Hills 152 Comment
  UCR89567  Psorothamnus emoryi George K. Helmkamp 1994-3-8 41- 15 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89568  Encelia farinosa George K. Helmkamp 1994-3-8 41- 01 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89569  Cryptantha angustifolia George K. Helmkamp 1994-3-10 42 11 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
  UCR89578  Palafoxia arida George K. Helmkamp 1994-3-8 41 9 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89579  Lupinus arizonicus George K. Helmkamp 1994-3-8 41 14 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89580  Encelia frutescens George K. Helmkamp 1994-3-8 41 8 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89581  Encelia frutescens George K. Helmkamp 1994-3-10 42 9 Riverside Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north 122 Comment
  UCR89669  Tidestromia oblongifolia George K. Helmkamp 1994-3-10 42 22 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
  UCR89670  Pennisetum setaceum George K. Helmkamp 1994-3-10 42- 17 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
  UCR89671  Physalis crassifolia George K. Helmkamp 1994-3-10 42- 23 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
  UCR89672  Hymenoclea salsola George K. Helmkamp 1994-3-10 42- 2 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
  UCR89773  Dicoria canescens George K. Helmkamp 1994-3-10 42 3 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
  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
  UCR89829  Pleurocoronis pluriseta George K. Helmkamp 1994-3-10 42 20 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
  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
  UCR89832  Brassica tournefortii George K. Helmkamp 1994-3-10 42 6 Riverside Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north 122 Comment
  UCR89865  Peucephyllum schottii George K. Helmkamp 1994-3-10 42 10 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
  UCR89866  Tiquilia palmeri George K. Helmkamp 1994-3-10 42- 12 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
  UCR89867  Camissonia cardiophylla George K. Helmkamp 1994-3-10 41 19 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
  UCR89868  Tamarix ramosissima George K. Helmkamp 1994-3-10 43- 01 Riverside Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north 122 Comment
  UCR89870  Dicoria canescens George K. Helmkamp 1994-3-8 41 10 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89871  Ambrosia dumosa George K. Helmkamp 1994-3-8 41 2 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR89872  Croton californicus George K. Helmkamp 1994-3-8 41 13 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCR91040  Physalis lancifolia George K. Helmkamp 1996-1-18 96-8- 01 Riverside Sonoran (Colorado) Desert, Colorado River Valley, c. 2 miles NE of Blythe 82 Comment
  UCR91041  Chenopodium murale George K. Helmkamp 1996-1-18 96-8- 3 Riverside Sonoran (Colorado) Desert, Colorado River Valley, c. 2 miles NE of Blythe 82 Comment
  UCR91925  Phoradendron densum George K. Helmkamp, E. A. Helmkamp 1995-11-16 6- 01 Riverside San Jacinto Mtns., Pinyon Pines Camp beside Hwy 74 1235 Comment
  UCR91926  Atriplex elegans George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR91927  Phoradendron pauciflorum George K. Helmkamp, E. A. Helmkamp 1995-11-16 3- 01 Riverside San Jacinto Mtns., At Humber Park NE of Idyllwild. 2000 Comment
  UCR91928  Phoradendron villosum George K. Helmkamp, E. A. Helmkamp 1995-11-16 1- 01 Riverside San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor) 1616 Comment
  UCR91939  Phalaris minor George K. Helmkamp 1996-3-11 1000 Riverside Sonoran (Colorado) Desert, Colorado River Valley, 35th Avenue and California Hwy 78, 1.7 mi north of PaloVerde 72 Comment
  UCR91947  Ziziphus obtusifolia var. canescens George K. Helmkamp 1996-3-11 1003 Riverside Chuckwalla Mtns, Corn Springs 479 Comment
  UCR91949  Chenopodium murale George K. Helmkamp 1996-3-11 1001 Riverside Sonoran (Colorado) Desert, Colorado River Valley, 35th Avenue and California Hwy 78, 1.7 mi north of PaloVerde 72 Comment
  UCR91950  Polygonum argyrocoleon George K. Helmkamp 1996-3-11 1002 Riverside Sonoran (Colorado) Desert, Colorado River Valley, 35th Avenue and California Hwy 78, 1.7 mi north of PaloVerde 72 Comment
  UCR91951  Atriplex suberecta George K. Helmkamp 1996-1-23 999 Riverside Colorado River Valley, 1.5 mi. NE of Blythe, at c. Intake Blvd and 10th Avenue. 82 Comment
  UCR91969  Phoradendron libocedri George K. Helmkamp, E. A. Helmkamp 1995-11-16 2- 2 Riverside San Jacinto Mtns., Along Hwy 243 at Lake Fulmor 1616 Comment
  UCR92481  Tidestromia oblongifolia George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92482  Cryptantha barbigera George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92483  Cryptantha maritima George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92484  Atrichoseris platyphylla George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92485  Nemacladus orientalis George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92486  Camissonia refracta George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92487  Eriogonum thomasii George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92488  Cryptantha maritima George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, 5.6 mi NE of Desert Center on Rice Rd. 152 Comment
  UCR92489  Lotus tomentellus George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, 5.6 mi NE of Desert Center on Rice Rd. 152 Comment
  UCR92501  Dalea mollissima George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92606  Pectocarya platycarpa George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92607  Chorizanthe corrugata George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92610  Lupinus arizonicus George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92639  Aristida adscensionis George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92640  Hilaria rigida George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92752  Eremalche rotundifolia George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92753  Marina parryi George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR92754  Arceuthobium campylopodum George K. Helmkamp, E. A. Helmkamp 1995-11-16 5- 01 Riverside San Jacinto Mtns, W end of Garner Valley, 0.5 mi east of Calif. 74 on Apple Canyon Rd. (just NE of Lake Hemet) 1341 Comment
  UCR93096  Festuca octoflora George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, 5.6 mi NE of Desert Center on Rice Rd. 152 Comment
  UCR96419  Euphorbia serpillifolia subsp. hirtula George K. Helmkamp, E. A. Helmkamp 1997-1-8 1279 Riverside Sonoran (Colorado) Desert, Palm Springs. Lawn at El Cielo and Tahquitz-McCallum 152 Comment
  UCR97281  Lupinus concinnus George K. Helmkamp 1986-4-7 760 Riverside Sonoran (Colorado) Desert, S of Morongo Valley. First canyon east of and parallel to Hwy 62 north of Indian Ave. 579 Comment
  UCR98005  Plagiobothrys arizonicus George K. Helmkamp, E. A. Helmkamp 1997-3-5 1332 B Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  UCSB63440  Chenopodium murale Helmkamp, G. 1996-3-11 Riverside At 35th Ave. and CA-78, 1.7 mi. north of Palo Verde 91 Comment
  VVC944  Cryptantha maritima G. K. Helmkamp 1998-2-18 2716 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi S of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  VVC945  Lotus strigosus G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2718 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi S of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  RSA517268  Portulaca oleracea George K. Helmkamp 1989-9-16 s.n. Riverside S of Ripley at 32nd Str. & Rannells Blvd. 75 Comment
  RSA518290  Polygonum argyrocoleon George K. Helmkamp 1989-9-16 s.n. Riverside ca. 1/2 mi. S of Hwy I-8 W of Blythe, at Seeley Rd. and state Hwy 78. QH 0N, 1E 75 Comment
  SD129245  Chenopodium fremontii G. K. Helmkamp 1989-10-7 79 Riverside San Jacinto Mountains. Depression beside Hwy 243 near Lawlor Lodge, about 2 miles N of Pine Cove. 1600 Comment
  SEINET2055760 Image available Baileya pleniradiata George K. Helmkamp, E. A. Helmkamp 2001-9-16 7174 Riverside Willcox Playa, east edge: Blue Sky Road 0.2 mil northeast of AZ-186 (siuthest of Willcox} 1295 Comment
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May 3 2014
  SEINET2055878  Brickellia lemmonii G. K. Helmkamp, E. A. Helmkamp 2000-9-13 6037 Riverside Chiricahua Mins; Pinery Cyn. 3.0 mi SE of Hwy AZ 181 1737 Comment
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May 3 2014
  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
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May 3 2014
  SEINET8194569  Sphaeralcea wrightii George Helmkamp 1999-1 Riverside Comment



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