33.58333 33.68333 -115.67750 -115.57750 UC/JEPS: Consortium Search Results
Search Results — 254 specimen records retrieved (254 records with coordinates)
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 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
  RSA461028  Abronia villosa D. A. Young 1969-3-28 P- 393 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  UCR244307  Achyronychia cooperi Jim Andre 2012-4-15 20853 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  UCSB10041  Achyronychia cooperi Haller, John 1958-3-22 Riverside On Hwys. 60-70; 11 miles W of Desert Center; 12.8 miles E of Box Canyon Rd. junc. (Calif. 195) Comment
  UCSB1844  Achyronychia cooperi Beeks, Richard 1952-4-5 Riverside 12 miles E of Shaver Summit Comment
  RSA0042854  Acmispon rigidus Duncan S. Bell, LeRoy Gross 2014-3-20 6274 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA0043068  Adenophyllum porophylloides Duncan S. Bell, LeRoy Gross 2014-3-20 6264 Riverside Orocopia Mountains; north section of range; 2.75 air miles southwest of Hayfields Lake. 511 Comment
  SEINET3146797  Ambrosia dumosa L. S. Rose 1936-12-26 36827 Riverside Hayfield, 7 mi. W of Desert Center 762 Comment
  UCR244301  Ambrosia dumosa Jim Andre 2012-4-15 20858 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  UCR244304  Ambrosia salsola Jim Andre 2012-4-15 20855 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA801980  Ammoselinum giganteum J. R. Bruff 1928-4-3 s.n. Riverside 13 W. of Desert Center in dry lake bed Comment
  HSC82821  Amsinckia tessellata A. C. Sanders, B. Pitzer, D. Charlton 1986-3-1 6015 Riverside Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct 427 Comment
  SBBG87488  Amsinckia tessellata A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6015 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR41524  Amsinckia tessellata A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6015 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  RSA644223  Antirrhinum filipes Victor W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-14 1367 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope. 183 Comment
  RSA434323  Argemone D. A. Young 1969-3-28 P- 309 Riverside End of Hayfield Rd., S. of interstte Highway 10 (US 60) 305 Comment
  RSA722445  Argemone munita subsp. munita J. R. Bruff 1928-4-3 181 Riverside 13 miles W of Desert Center. Comment
  RSA0043067  Argythamnia serrata Duncan S. Bell, LeRoy Gross 2014-3-20 6265 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCR99728  Asclepias albicans B. G. Pitzer 1996-11-9 2924 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  RSA289626  Asclepias californica D. A. Young 1969-5-25 P 484 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  UCR96185  Asclepias subulata B. G. Pitzer 1996-11-9 2927 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  UCR96037  Baccharis brachyphylla A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer 1996-11-9 19646 Riverside Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899) 610 Comment
  UCSB9966  Baileya multiradiata Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shaver Summit Comment
  RSA695664  Baileya pleniradiata J. Russell Bruff 1928-4-3 172 Riverside 13 miles W of Desert Center. Comment
Read comments
Oct 23 2011
  UCR244309  Baileya pleniradiata Jim Andre 2012-4-15 20851 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  UCSB6394  Baileya pleniradiata Haller, John 1958-3-22 Riverside On Hwys. 60-70, 11 miles W. of Desert Center, 12.8 miles E. of Box Canyon Rd. junc. (Calif. 195) Comment
  UCR96198  Bebbia juncea B. G. Pitzer 1996-11-9 2925 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  RSA0043064  Bouteloua aristidoides Duncan S. Bell, LeRoy Gross 2014-3-20 6268 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA778528  Bouteloua aristidoides Amber Swanson 2011-10-9 649 Riverside Around the Hayfields ext N of Hwy I-10. 426 Comment
  RSA0043066  Brandegea bigelovii Duncan S. Bell, LeRoy Gross 2014-3-20 6266 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA644218  Brandegea bigelovii V. W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-12 1359 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10. 600 Comment
  UCR244310  Brandegea bigelovii Jim Andre 2012-4-15 20850 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  SBBG87894  Brassica tournefortii A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6014 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR41558  Brassica tournefortii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6014 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  CAS-BOT-BC100514  Brickellia incana K. Larson 1977-5-11 2297 Riverside 10 mi. W. of Desert Center Comment
  CAS-BOT-BC100516  Brickellia incana K. Larson 1977-5-11 2298 Riverside 10 mi. W. of Desert Center Comment
  OBI31830  Brickellia incana David J. Keil 1978-11-27 s.n. Riverside I-1- exit at Hayfield rd Comment
Read comments
Mar 3 2013
  RSA0042857  Brickellia incana Duncan S. Bell, LeRoy Gross 2014-3-20 6271 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCD59904  Bromus tectorum var. glabratus A. A. Beetle 1942-4-22 3182 Riverside Rt. 60 and 70, 5 miles east of Shavers Summit. Comment
  RSA465922  Camissonia bistorta D. A. Young 1968-3-28 P 331 Riverside At end of Hayfield Road, South of Interstate 10. Creosote scrub. 305 Comment
  SEINET3093091 Image available Camissonia boothii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6008 Riverside Chuckwalla Valley; 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR114142  Camissonia boothii B. G. Pitzer, J. Ross 1998-3-8 3601 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR41541  Camissonia boothii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6008 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  SEINET4681023  Camissonia boothii subsp. condensata R. Kass, E. Neese 1983-4-1 1225 San Bernardino About 10 mi W of Desert Center, 1/2 mi S of I-10.; 0 Comment
Read comments
Dec 18 2016
  UCR41556  Camissonia claviformis A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6009 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR112973  Camissonia pallida B. G. Pitzer, T. Tennant 1998-2-21 3539 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10. 427 Comment
  UCR114122  Camissonia pallida B. G. Pitzer, J. Ross 1998-3-8 3604 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA699035  Castela emoryi J. Russell Bruff 1928-4-3 182 Riverside 13 miles W of Desert Center Comment
  UCR35781  Castela emoryi R. F. Thorne 1965-1 41759 Riverside Sonoran (Colorado) Desert, Hayfields, Chuckwalla Valley. Grown at Rancho Santa Ana Botanic Garden from seed collected by B. D. Stark, Apr. 1929 366 Comment
  UCR60832  Castela emoryi Steve Boyd, T. S. Elias, Erika Winter 1986-2-18 1338 Riverside Sonoran (Colorado) Desert, Shavers Valley, Colorado Desert: NW end of Hayfields Dry Lake Comment
  SD124697  Caulanthus lasiophyllus A. C. Sanders, B. Pitzer and D. Charlton 1986-3-1 6016 Riverside Chuckwalla Valley, 1.0 mile west of Hayfield Lake, 2.0 miles southwest of the pumping station on a small cutoff road from Hayfield Road . 424 Comment
  UCD130229  Chaenactis carphoclinia James Henrickson 1963-3-29 1224 Riverside 12 miles west of Desert Center, near Eagle Mount Pumping Station. 533 Comment
  UCR114114  Chaenactis fremontii B. G. Pitzer, J. Ross 1998-3-8 3607 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  JEPS8640  Chaenactis stevioides Rimo Bacigalupi with Richard Holm and R. S. Ferris 1953-4-20 4039 Riverside 7 mi e of Shaver Summit (along U.S. Highway No. 60-70, opposite Hayfield Dry Lake) 441 Comment
  RSA695676  Chaenactis stevioides J. Russell Bruff 1928-4-3 179 Riverside 13 miles W of Desert Center. Comment
  UCSB7215  Chaenactis stevioides Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shaver Summit Comment
  RSA152512  Chaenactis stevioides var. stevioides R. C. Bacigalupi 1953-4-20 4039 Riverside Hwy 60-70, opposite Hayfield Dry Lake, 7 miles E of Shaver Summit. 442 Comment
  RSA0021558  Chamaesyce polycarpa Duncan S. Bell, Aaron Sims 2012-3-10 2045 Riverside Orocopia Mountains; northeast section of range, approximately 4 air miles east of Chiriaco Summit. 497 Comment
  SEINET3165333  Chamaesyce polycarpa L. S. Rose 1936-12-26 36821 Riverside Hayfield, 5 mi. W of Desert Center 914 Comment
  RSA0043063  Cheilanthes parryi Duncan S. Bell, LeRoy Gross 2014-3-20 6269 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA636138  Cheilanthes parryi L. C. Wheeler 1964-10-17 8638 Riverside Orocopia Mountains: South of Hayfield Reservoir (lake) Colorado Desert. Comment
  SEINET3870277  Cheilanthes parryi Louis C. Wheeler 1964-10-17 8638 Riverside Orocopia Mountains: South of Hayfield Reservoir (lake) Colorado Desert.; 0 Comment
  UCR153432  Cheilanthes parryi L. C. Wheeler 1964-10-17 8638 Riverside Sonoran Desert, North side of Orocopia Mountains, south of Hayfield Reservoir 457 Comment
  RSA644219  Chorizanthe brevicornu var. brevicornu Victor W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-14 1358 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope. 183 Comment
  SBBG87405  Chorizanthe brevicornu var. brevicornu A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6011 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR41543  Chorizanthe brevicornu var. brevicornu A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6011 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR114146  Chorizanthe rigida B. G. Pitzer, J. Ross 1998-3-8 3618 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA643806  Chrysothamnus paniculatus A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer, et al. 1996-11-9 19647 Riverside Colorado Desert: Orocopia Mtns., near Bob's Cabin, 5 mi. (Air) S of Hayfield Pump Sta., E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo. 610 Comment
  UCR96038  Chrysothamnus paniculatus A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer 1996-11-9 19647 Riverside Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899) 610 Comment
  UCSB30406  Chylismia brevipes Krasner, Larry 1975-3-22 Riverside 11 miles west of Desert Center on Highway 10 365 Comment
  RSA289628  Cirsium occidentale var. californicum D. A. Young 1969-5-25 P 473 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  POM368198  Cryptantha angustifolia D. A. Young 1969-3-28 342 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  UCR244300  Cryptantha angustifolia Jim Andre 2012-4-15 20859 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  OBI38928  Cryptantha dumetorum A. C. Sanders, B. Pitzer & D. Charlton, D. Charlton 1986-3-1 6010 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff rd from Hayfield rd to the dirt rd to the Colorado River Aqueduct (T5S, R13E, SW 1/4 sec 30) 427 Comment
  SBBG87895  Cryptantha dumetorum A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6010 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR41531  Cryptantha dumetorum A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6010 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  POM258906  Cryptantha racemosa E. C. Jaeger 1939-12-3 s.n. Riverside Canyon of Orocopia Mountains, south of Hayfield reservoir. 427 Comment
  RSA0041943  Cryptantha racemosa Duncan S. Bell, Loraine Washburn 2014-4-10 6592 Riverside Orocopia Mountains; northeastern section of range; approximately 4 air miles southeast of Hayfields Lake. 559 Comment
  RSA0098327  Cylindropuntia bigelovii Marc A. Baker, Michelle Cloud-Hughes 2015-3-25 18288 .1 Riverside Orocopia Mountains, 2.4 km north of Red Canyon, 52 km east of Indio. 658 Comment
  SEINET9037778 Image available Cylindropuntia bigelovii M. A. Baker, Michelle Cloud-Hughes 2015-1 18288 .2 Riverside Orocopia Mountains, 2.4km north of Red Canyon, 52km east of Indio, mostly granitic grus and rocks 658 Comment
  SEINET716811  Cylindropuntia ramosissima R. Puente, G. and A. Puente-Reinhardt 1998-11-7 741 Riverside 1.5mi e of Chirico Summit Comment
Read comments
Jan 7 2016
  GMDRC5672  Cynanchum utahense J. Andre 2012-4-15 20848 Riverside west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA791481  Cynanchum utahense J. Andre 2012-4-15 20848 Riverside West end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10. 395 Comment
  UCR244312  Cynanchum utahense Jim Andre 2012-4-15 20848 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA796272  Dalea mollissima Jim Andre 2012-4-15 20849 Riverside West end of Hayfield Dry Lake, 0.3 mi. N of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10. 395 Comment
  UCR114118  Dalea mollissima B. G. Pitzer, J. Ross 1998-3-8 3613 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR244311  Dalea mollissima Jim Andre 2012-4-15 20849 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA644217  Ditaxis lanceolata V. W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-14 1366 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10. Along a small wash on north-facing slope. 182 Comment
  UCD142304  Ditaxis lanceolata V. W. Steinmann; P. I. Moscosa, T. S. Ross 1998-4-14 1366 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10. 600 Comment
  UCD142874  Ditaxis lanceolata James Henrickson 1963-3-29 1215 Riverside 12 miles West of Desert Center, near Eagle Mt. 533 Comment
  UCR114113  Ditaxis lanceolata B. G. Pitzer, J. Ross 1998-3-8 3609 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA0021557  Ditaxis neomexicana Duncan S. Bell, Aaron Sims 2012-3-10 2044 Riverside Orocopia Mountains; northeast section of range, approximately 4 air miles east of Chiriaco Summit. 497 Comment
  UCR244303  Ditaxis neomexicana Jim Andre 2012-4-15 20856 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  SEINET8060012 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 10 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  SEINET8060013 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 9 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  SEINET8060016 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 8 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  SEINET8060772 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 7 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  UCR114116  Emmenanthe penduliflora B. G. Pitzer, J. Ross 1998-3-8 3611 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA0041454  Encelia farinosa Duncan S. Bell, LeRoy Gross 2014-3-20 6279 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA696888  Encelia farinosa W. Marquart 1938-3-12 s.n. Riverside 15 mi. W. of Desert Center on main highway. Comment
Read comments
Apr 5 2011
  UCR114144  Eremalche exilis B. G. Pitzer, J. Ross 1998-3-8 3605 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCSB30402  Eremothera boothii subsp. condensata Krasner, Larry 1975-3-22 Riverside 11 miles west of Desert Center, on Highway 10 365 Comment
  UCSB5012  Eriastrum eremicum Beeks, Richard 1952-4-5 Riverside 12 miles E of Shaver Summit Comment
  CAS-BOT-BC299533  Ericameria paniculata A. C. Sanders; G. Helmkamp; O. Clarke; B. Pitzer; et al 1996-11-9 19647 Riverside Orocopia Mtns., near Bob's Cabin 5 mi. (air) S of Hayfield Pump Sta., E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo, Colorado Desert 609 Comment
  UCR114119  Eriogonum deflexum B. G. Pitzer, J. Ross 1998-3-8 3615 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  CAS-BOT-BC256122  Eriogonum deflexum var. deflexum Lewis S. Rose 1936-12-26 36824 Riverside Hayfield, 5 mi. W of Desert Center Comment
  CAS-BOT-BC256123  Eriogonum deflexum var. deflexum Lewis S. Rose 1936-12-26 36824 a Riverside Hayfield, 5 mi. W of Desert Center Comment
  UC849369  Eriogonum deflexum var. deflexum Lewis S. Rose 1936-12-26 36824 Riverside 5 mi w, Hayfield Desert Center; Hayfield 609 Comment
Read comments
Dec 15 2011
  RSA698441  Eriogonum inflatum J. R. Bruff 1928-4-3 173 Riverside 13 miles W of Desert Center. Comment
  UCR99565  Eriogonum inflatum B. G. Pitzer 1996-11-9 2928 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  RSA644221  Eriogonum thomasii Victor W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-14 1368 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope. 183 Comment
  UCR244302  Eriogonum trichopes Jim Andre 2012-4-15 20857 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA445666  Eschscholzia minutiflora Robert M. Perkins 1937-3-15 422 Riverside 10 miles W of Desert Center. Comment
Read comments
Apr 5 2011
  UCR114123  Eschscholzia parishii B. G. Pitzer, J. Ross 1998-3-8 3616 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA0041458  Euphorbia eriantha Duncan S. Bell, LeRoy Gross 2014-3-20 6275 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  SD146282  Euphorbia eriantha B. Pitzer, Tracy Tennant 1998-2-21 3538 Riverside Colorado Desert, north-facing bajada on south side of Hayfield Lake between lakebed & Hwy 1-10, Hayfield Spring, in washes & on flats 412 Comment
  UCR112972  Euphorbia eriantha B. G. Pitzer, T. Tennant 1998-2-21 3538 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10. 427 Comment
  RSA0041945  Euphorbia jaegeri Duncan S. Bell, Loraine Washburn 2014-4-9 6590 Riverside Orocopia Mountains; northeast section of range; approximately 3.75 air miles south of Hayfields Lake. 551 Comment
  RSA0043069  Euphorbia jaegeri Duncan S. Bell, LeRoy Gross 2014-3-20 6263 Riverside Orocopia Mountains; north section of range; 2.75 air miles southwest of Hayfields Lake. 511 Comment
  SEINET8665762 Image available Euphorbia jaegeri Duncan S. Bell, LeRoy Gross 2014-3-20 6263 Riverside Oocopia Mountains: north section of range; 2.75 air miles southwest of Hayfields Lake. 511 Comment
  SEINET3828351  Euphorbia polycarpa Amber Swanson 2011-1 653 Riverside On a flat sandy wash areas 426 Comment
  POM214415  Euphorbia polycarpa var. hirtella E. C. Jaeger 1939-12-3 s.n. Riverside Canyon of Orocopia Mountains, south of Hayfield reservoir. 427 Comment
  UCR112979  Filago depressa B. G. Pitzer, T. Tennant 1998-2-21 3540 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10. 427 Comment
  UCR41525  Filago depressa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6019 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  RSA0039650  Fouquieria splendens Duncan S. Bell, LeRoy Gross 2014-3-20 6287 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCR96124  Fouquieria splendens B. G. Pitzer 1996-11-9 2922 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  UCR244305  Fouquieria splendens subsp. splendens Jim Andre 2012-4-15 20854 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA0041958  Funastrum hirtellum Duncan S. Bell, Loraine Washburn 2014-4-10 6595 Riverside Orocopia Mountains; northeastern section of range; approximately 4 air miles southeast of Hayfields Lake. 559 Comment
  RSA0042855  Funastrum hirtellum Duncan S. Bell, LeRoy Gross 2014-3-20 6273 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA171053  Funastrum hirtellum R. F. Thorne 1963-3-29 32430 Riverside Mouth of arroyo near Eagle Mt. Pumping Station, S side of Eagle Mts., ca. 12 miles W of Desert Center. 533 Comment
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Apr 24 2011
  RSA644216  Funastrum hirtellum V. W. Steinmann, P. I. Moscosa, Timothy S. Ross 1998-4-14 1364 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10. 182 Comment
  SEINET7248310  Funastrum hirtellum Duncan S. Bell, LeRoy Gross 2014-1 6273 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  HSC101233  Funastrum utahense Jim Andre 2012-4-15 20848 Riverside West end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10. 395 Comment
  RSA696892  Geraea canescens W. Marquart 1938-3-12 s.n. Riverside 10 mi. E. of Desert Center. Comment
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Apr 14 2013
  RSA699241  Geraea canescens J. R. Bruff 1928-4-3 s.n. Riverside 13 miles W of Desert Center. Comment
  SD146195  Gilia stellata B. Pitzer, J. Ross 1998-3-8 3608 1 Riverside North-facing bajada on south side of Hayfield Lake between laebed and Highway I-10. 412 Comment
  UCR114124  Gilia stellata B. G. Pitzer, J. Ross 1998-3-8 3608 .1 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  SEINET3886952  Hesperocallis undulata R. Kass, E. Neese 1983-4-1 1230 San Bernardino Ca 10 mi W of Desert Center, 1/2 mi S of I-10.; 0 Comment
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Dec 25 2016
  UCSB690  Hesperocallis undulata Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shavers Summit Comment
  RSA0042858  Hibiscus denudatus Duncan S. Bell, LeRoy Gross 2014-3-20 6270 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCR114115  Hibiscus denudatus B. G. Pitzer, J. Ross 1998-3-8 3610 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  SEINET190986 Image available Hilaria rigida A. A. Beetle 1942-4-22 3183 Riverside 5 mi E of Shaver's Summit; Rt 60 & 70 Comment
  UCD89916  Hilaria rigida A. A. Beetle 1942-4-22 3183 Riverside Rts. 60 and and 0 (sic), 5 miles east of Shavers Summit. Comment
  UCSB393  Hilaria rigida Beeks, Richard 1952-4-5 Riverside 12 miles east of Shavers Summit Comment
  RSA0041452  Hyptis emoryi Duncan S. Bell, LeRoy Gross 2014-3-20 6281 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA0041942  Hyptis emoryi Duncan S. Bell, Loraine Washburn 2014-4-10 6594 Riverside Orocopia Mountains; northeastern section of range; approximately 4 air miles southeast of Hayfields Lake. 559 Comment
  UCR96199  Hyptis emoryi B. G. Pitzer 1996-11-9 2923 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  RSA0042112  Krameria grayi Duncan S. Bell, LeRoy Gross 2014-3-20 6283 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCR41544  Langloisia schottii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6012 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  RSA644202  Langloisia setosissima subsp. setosissima V. W. Steinmann, P. I. Moscosa 1998-4-21 1369 Riverside Orocopia Mountains, ca. 2 km southwest of the Hayfield exit of I-10. 750 Comment
  UCR244298  Larrea tridentata Jim Andre 2012-4-15 20861 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA289625  Layia glandulosa D. A. Young 1969-5-25 P 493 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  RSA429902  Lepidium fremontii D. A. Young 1969-3-28 464 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  SD145979  Lepidium fremontii B. Pitzer, Tracy Tennant 1998-2-21 3541 Riverside Colorado Desert: north-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 412 Comment
  UCR112961  Lepidium fremontii B. G. Pitzer, T. Tennant 1998-2-21 3541 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10. 427 Comment
  SBBG87393  Linanthus jonesii A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6007 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR114126  Linanthus jonesii B. G. Pitzer, J. Ross 1998-3-8 3608 .2 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR41542  Linanthus jonesii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6007 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCSB5123  Loeseliastrum matthewsii Haller, John 1958-3-22 Riverside Highway 60- 70; 11 miles W of Desert Center; 12.8 miles E of Box Canyon Rd. junction, (Calif. 195) Comment
  SBBG87389  Loeseliastrum schottii A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6012 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  JEPS48838  Lupinus arizonicus Marjorie D. Clary 1932-5-9 945 Riverside Shavers Well to Desert Center; Shavers Well to Desert Center Comment
  UCR114148  Lupinus arizonicus B. G. Pitzer, J. Ross 1998-3-8 3614 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA721133  Malacothrix coulteri J. R. Bruff 1928-4-3 175 Riverside 13 miles W of Desert Center. Comment
  RSA0043065  Marina parryi Duncan S. Bell, LeRoy Gross 2014-3-20 6267 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCR96204  Matelea parvifolia A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer 1996-11-9 19648 Riverside Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899) 610 Comment
  UCR163513  Mentzelia B. G. Pitzer, J. Ross 1998-3-8 3600 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCSB4255  Mentzelia albicaulis Beeks, Richard 1952-4-5 Riverside 12 miles east of Shaver Summit Comment
  RSA0021559  Mentzelia jonesii Duncan S. Bell, Aaron Sims 2012-3-10 2046 Riverside Orocopia Mountains; northeast section of range, approximately 4 air miles east of Chiriaco Summit. 497 Comment
  UCR114120  Monoptilon bellioides B. G. Pitzer, J. Ross 1998-3-8 3619 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA289621  Muilla maritima D. A. Young 1969-5-25 P 491 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  SBBG118490  Myriopteris parryi L. C. Wheeler 1964-10-17 8638 Riverside S of Hayfield Reservoir (lake), north side Orocopia Mtns Comment
  UCSB5309  Nama demissa Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shavers Summit Comment
  HSC101509  Nama hispida var. spathulata J. P. Smith, J. O. Sawyer, R. J. Cole 2010-4-14 12754 Riverside Roadside 455 Comment
  SEINET3145433  Nama hispida var. spathulata R. W. Spellenberg, N. Zucker 2001-3-24 13180 Riverside Just N of IH-10 on Hayfield Rd., ca. 30 km W of Desert Center, ca. 5 km E of Chiriaco Summit 440 Comment
  UCR114125  Nemacladus orientalis B. G. Pitzer, J. Ross 1998-3-8 3608 .3 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA0042856  Nicotiana obtusifolia Duncan S. Bell, LeRoy Gross 2014-3-20 6272 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA644222  Nicotiana obtusifolia Victor W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-14 1362 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; ca. 600 m. Along a small wash on north-facing slope. 183 Comment
  SEINET3240343  Nicotiana obtusifolia V. W. Steinmann, P. I. Moscosa, T. S. Ross 1998-1 1362 Unknown Riveside Co.: Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10; T6S R13E, S 1/2 of SW 1/4 of sec. 8 600 Comment
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Jan 7 2016
  CAS-BOT-BC131850  Nolina bigelovii A. C. Sanders; G. Helmkamp; O. Clarke; B. Pitzer; et al. 1996-11-9 19645 Riverside Colorado Desert: Orocopia Mtns., near Bob's Cabin, 5 mi. (air) S of Hayfield Pump Sta., E of Maniobra V., central sec. of (N of peak 2552 to BMk 1899) arroyo 610 Comment
  POM258905  Nolina bigelovii E. C. Jaeger 1939-12-3 s.n. Riverside Canyon of Orocopia Mountains, south of Hayfield reservoir. 427 Comment
  RSA628244  Nolina bigelovii A. C. Sanders, G. K. Helmkamp, O. F. Clarke, B. Pitzer, et al. 1996-11-9 19645 Riverside Colorado Desert: Orocopia Mountains., near ''Bob's Cabin'', 5 mi. (air) S of Hayfield Pump Station, E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo. 610 Comment
  SD227672  Nolina bigelovii A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer, et al 1996-11-9 19645 Riverside Colorado Desert: Orocopia Mtns., near Bob's Cabin, 5 mi. (air) S of Hayfield Pump Sta., E of Maniobra V., central sect. of (N of peak 2552 to BMk 1899) arroyo 609 Comment
  UCR99793  Nolina bigelovii A. C. Sanders, G. Helmkamp, O. Clarke, B. Pitzer 1996-11-9 19645 Riverside Sonoran (Colorado) Desert, Orocopia Mtns., near 'Bob's Cabin', 5 mi. (air) south of Hayfield Pump Sta., east of Maniobra Valley, central section of arroyo (N of peak 2552 to Bench Mark 1899) 610 Comment
  UCSB4446  Oenothera deltoides subsp. deltoides Atsatt, Pete 1958-3-22 Riverside 8 miles east of Shavers Summit on highway 60 & 70; Sandy Strech on N. side of Rd Comment
  UCSB4503  Oenothera deltoides subsp. deltoides Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shaver Summit Comment
  UCR114165  Oenothera primiveris B. G. Pitzer, J. Ross 1998-3-8 3617 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA734944  Oenothera scapoidea W. Marquart 1938-3-12 s.n. Riverside 10 mi. W. of Desert Center. Comment
  UCR244299  Palafoxia arida var. arida Jim Andre 2012-4-15 20860 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA791480  Parkinsonia florida Jim Andre 2012-4-15 20852 Riverside West end of Hayfield Dry Lake, 0.3 mi. N of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10. 395 Comment
  UCR244308  Parkinsonia florida Jim Andre 2012-4-15 20852 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  RSA778323  Pectis papposa Amber Swanson 2011-10-9 652 Riverside Around the Hayfields ext N of Hwy I-10. 426 Comment
  SEINET3828352  Pectis papposa Amber Swanson 2011-1 652 Riverside Around the Hayfields ext N of Hwy I-10 UTM Zone 426 Comment
  HSC82816  Pectocarya heterocarpa A. C. Sanders, B. Pitzer, D. Charlton 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct 427 Comment
  SBBG87400  Pectocarya heterocarpa A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  OBI38358  Pectocarya peninsularis A. C. Sanders, B. Pitzer, & D. Charlton, D. Charlton 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff rd from Hayfield rd to the dirt rd to the Colorado River Aqueduct (T5S, R13E, SW 1/4 sec 30) 427 Comment
  UCR41528  Pectocarya peninsularis A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR41560  Pectocarya platycarpa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6018 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR41526  Pectocarya recurvata A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6020 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  RSA0042375  Peritoma arborea Duncan S. Bell, LeRoy Gross 2014-3-20 6282 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  SEINET7248311  Peritoma arborea Duncan S. Bell, LeRoy Gross 2014-1 6282 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  CAS-BOT-BC167757  Petalonyx thurberi K. Bonner 1977-10-28 2569 Riverside 2 mi. West of Red Cloud Road Comment
  LA49840  Petalonyx thurberi subsp. thurberi Henry J. Thompson; 1960-4-30 3260 Riverside along US Highway 60 and 70, opposite Hayfield Dry Lake, 14 mi. W of Desert Center 457 Comment
  CAS-BOT-BC326769  Peucephyllum schottii Robert F. Thorne 1963-3-29 32441 Riverside South side of Eagle Mountains near pumping station of Metropolitan Water District about 12 miles west of Desert Center Comment
  RSA167477  Peucephyllum schottii R. F. Thorne 1963-3-29 32441 Riverside Mouth of arroyo near Eagle Mt. Pumping Station, S side of Eagle Mts., ca. 12 miles W of Desert Center. 533 Comment
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Dec 13 2011
  RSA0042114  Phoradendron californicum Duncan S. Bell, LeRoy Gross 2014-3-20 6285 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA640171  Phoradendron californicum Louis C. Wheeler 1964-10-17 8641 Riverside North side of Orocopic Mountains: South of Hayfield Reservoir. Comment
  RSA640172  Phoradendron californicum Louis C. Wheeler 1964-10-17 8640 Riverside North side of Orocopic Mountains: South of Hayfield Reservoir. Comment
  SBBG1373  Phoradendron californicum K. K. Muller 1957-4-13 801 Riverside 12 mi W of Desert Center Comment
  SBBG43589  Phoradendron californicum K. K. Muller 1957-4-13 801 Riverside 12 mi W of Desert Center Comment
  UC1971180  Phoradendron californicum Louis C. Wheeler 1964-10-17 8641 Riverside North side of Orocopic Mountains: South of Hayfield Reservoir. Comment
  UC1971181  Phoradendron californicum Louis C. Wheeler 1964-10-17 8640 Riverside North side of Orocopic Mountains: South of Hayfield Reservoir. Comment
  UCR139944  Phoradendron californicum L. C. Wheeler 1964-10-17 8641 Riverside Sonoran Desert, North side of Orocopia Mountains, south of Hayfield Reservoir 457 Comment
  UCSB2391  Physaria tenella Haller, John 1958-3-22 Riverside On Hwys 60-70, 11 miles W of Desert Center, 12.8 miles E of Box Canyon road junction, (Calif. 195) Comment
  RSA698379  Plantago ovata J. Russell Bruff 1928-4-3 s.n. Riverside 13 miles W of Desert Center Comment
  RSA0041455  Pleuraphis rigida Duncan S. Bell, LeRoy Gross 2014-3-20 6278 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UC677602  Pleuraphis rigida A. A. Beetle 1942-4-22 3183 Riverside Rt. 60 and 70, 5 mi e Shaver's Summit; e of Shaver's Summit Comment
  CAS-BOT-BC356338  Psathyrotes ramosissima Roxana S. Ferris 1918-6-15 996 Riverside 25 miles east of Mecca on Mecca Blythe Road Comment
  CAS-BOT-BC356345  Psathyrotes ramosissima Roxana S. Ferris 1918-6-15 996 Riverside 25 miles east of Mecca on Mecca-Blythe Road Comment
  RSA697082  Psathyrotes ramosissima W. Marquart 1938-3-12 s.n. Riverside 10 mi. W. of Desert Center. Comment
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Apr 5 2011
  RSA404273  Psorothamnus spinosus Christopher Davidson 1974-6-15 2292 Riverside Interstate 10, ca. 5 mi. E of Chiriaco Summit. 457 Comment
  RSA0041456  Salvia columbariae Duncan S. Bell, LeRoy Gross 2014-3-20 6277 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA175251  Salvia columbariae Robert F. Thorne 1963-3-29 32435 Riverside Mouth of arroyo near Eagle Mt. Pumping Station, S side of Eagle Mts., ca. 12 miles W of Desert Center. 534 Comment
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Apr 24 2011
  SD146234  Salvia columbariae B. Pitzer, W. Ross 1998-3-8 3599 Riverside Colorado desert, N side of Hayfield Lake between lakebed and Hwy I-10 412 Comment
  UCR114121  Salvia columbariae B. G. Pitzer, J. Ross 1998-3-8 3599 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA289611  Sambucus mexicana D. A. Young 1969-5-25 P 492 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  HSC101533  Schismus barbatus J. P. Smith, J. O. Sawyer, R. J. Cole 2010-4-14 12755 Riverside Roadside 455 Comment
  UCR114145  Schismus barbatus B. G. Pitzer, J. Ross 1998-3-8 3606 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  CAS-BOT-BC341096  Scutellaria mexicana K. Bonner 1977-10-28 2605 Riverside 2 mi. W. of Red Cloud Road Comment
  RSA0041451  Scutellaria mexicana Duncan S. Bell, LeRoy Gross 2014-3-20 6286 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA0041946  Selaginella eremophila Duncan S. Bell, Loraine Washburn 2014-4-9 6589 Riverside Orocopia Mountains; northeast section of range; approximately 3.75 air miles south of Hayfields Lake. 551 Comment
  RSA641073  Selaginella eremophila Louis Cutter Wheeler 1964-10-17 8639 Riverside North side of Orocopic Mountains: South of Hayfield Reservoir. Comment
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Sep 3 2013
  SBBG118800  Selaginella eremophila L. C. Wheeler 1964-10-17 8639 Riverside Orocopia Mtns, S of Hayfield Reservoir Comment
  SD181812  Selaginella eremophila Louis C. Wheeler 1964-10-17 8639 Riverside North slope of Orocopia Mountains, southerly from Hayfield Reservoir, below water shedding sloping rock faces in sun. Comment
  SEINET3864516 Image available Selaginella eremophila Louis C. Wheeler 1964-10-17 8639 Riverside North slope of Orocopia Mountains. Southerly from Hayfield Reservoir (lake).; 0 Comment
  UCR147704  Selaginella eremophila L. C. Wheeler 1964-10-17 8639 Riverside Sonoran (Colorado) Desert, N slope of Orocopia Mountains; southerly from Hayfield Reservoir (lake) Comment
  RSA0041457  Senna armata Duncan S. Bell, LeRoy Gross 2014-3-20 6276 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  RSA0043070  Simmondsia chinensis Duncan S. Bell, LeRoy Gross 2014-3-20 6288 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  SBBG71063  Simmondsia chinensis R. Hoffmann 1929-2-9 Riverside Mecca-Blythe Comment
  SEINET7248312  Simmondsia chinensis Duncan S. Bell, LeRoy Gross 2014-1 6288 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  SBBG87391  Sisymbrium irio A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6013 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR41557  Sisymbrium irio A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6013 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  RSA0042374  Sphaeralcea ambigua Duncan S. Bell, LeRoy Gross 2014-3-20 6284 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCSB4097  Sphaeralcea ambigua Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shavers Summit Comment
  RSA445071  Sphaeralcea ambigua subsp. ambigua D. A. Young 1969-3-28 p- 391 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  JEPS16683  Stephanomeria exigua subsp. exigua Rimo Bacigalupi with R. S. Ferris and R. W. Holm 1953-4-20 4040 Riverside opposite Hayfield Dry Lake (along U.S. Highway 60 - 70) 426 Comment
  UCR114143  Stillingia linearifolia B. G. Pitzer, J. Ross 1998-3-8 3603 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR114117  Thelypodium lasiophyllum B. G. Pitzer, J. Ross 1998-3-8 3612 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR41559  Thelypodium lasiophyllum A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6016 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR89705  Tidestromia oblongifolia J. M. Stewart 1990-10-28 669 Riverside Sonoran (Colorado) Desert, Red Canyon, east side of Orocopia Mtns. Comment
  RSA475367  Trichoptilium incisum D. A. Young 1969-3-28 p 429 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  RSA0041944  Tridens muticus Duncan S. Bell, Loraine Washburn 2014-4-10 6591 Riverside Orocopia Mountains; northeastern section of range; approx. 3.5 air miles south of Hayfields Lake. 538 Comment
  CAS-BOT-BC323094  Trixis californica James Henrickson 1963-3-29 1222 Riverside 12 miles west of Desert Center near Eagle Mountain Pumping Station 533 Comment
  RSA0041453  Viguiera parishii Duncan S. Bell, LeRoy Gross 2014-3-20 6280 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  UCR133028  Ziziphus obtusifolia Bern Schwenn 1997-4-1 s.n. Riverside Sonoran (Colorado) Desert, Orocopia Mountains, Red Canyon Trail on north side of the mountains, 1.8 miles south of Pinto Road at I-10 518 Comment
  UCR99560  Ziziphus obtusifolia B. G. Pitzer 1996-11-9 2926 Riverside Sonoran (Colorado) Desert, Orocopia Mts: c. 2 air mi. S and slightly west of, Bob's Cabin; c. 6.5 mi. south of the W end of Hayfield Lake. 518 Comment



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