33.63935 33.73935 -115.67818 -115.57818 UC/JEPS: Consortium Search Results
Search Results — 546 specimen records retrieved (546 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
  UCR116304  Achyronychia cooperi B. G. Pitzer 1998-2-1 3431 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  JOTR36015  Acmispon rigidus Harding, Mitzi, T. Herskovits 2012-3-16 222 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash 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
  SEINET3092215 Image available Allionia incarnata Barbara Gayle Pitzer 1998-2-1 3437 Riverside Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed. 427 Comment
  UCR102740  Allionia incarnata B. G. Pitzer 1998-2-1 3437 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  CLARK-A1528-5217  Ambrosia dumosa John C. Roos 1937-4-28 766 Riverside Hayfield Comment
  SEINET3146797  Ambrosia dumosa L. S. Rose 1936-12-26 36827 Riverside Hayfield, 7 mi. W of Desert Center 762 Comment
  UCR101565  Ambrosia dumosa Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  UCR41603  Ambrosia dumosa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6025 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 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
  SBBG87792  Ambrosia salsola var. salsola A. C. Sanders with D. Charlton, B. Pitzer 1986-3-1 6023 Riverside NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station 411 Comment
  JEPS14148 Image available Ammoselinum giganteum P. A. Munz and D. Keck 1922-4-13 4930 Riverside Chuckwalla Valley Colorado Desert (Hayfields); Chuckawalla Valley, Colorado Desert 152 Comment
  RSA801980  Ammoselinum giganteum J. R. Bruff 1928-4-3 s.n. Riverside 13 W. of Desert Center in dry lake bed Comment
  UC1046273 Image available Ammoselinum giganteum P. A. Munz and D. Keck 1922-4-13 4930 Riverside Chuckawalla Valley; ; Chuckawalla Valley, Colorado Desert 152 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
  UCR112968  Amsinckia tessellata B. G. Pitzer, T. Tennant 1998-2-21 3535 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 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
  CLARK-A1528-4162  Antirrhinum filipes John C. Roos 1947-2-15 3238 Riverside Comment
  JOTR28916  Antirrhinum filipes La Doux, Tasha 2005-2-7 1152 Riverside Joshua Tree National Park. Eagle Mountains; south facing slopes north of Hayfield Dry Lake 553 Comment
  POM177870  Antirrhinum filipes Marcus E. Jones 1930-4-2 s.n. Riverside Hayfields Comment
Read comments
Sep 16 2011
  RSA49378  Antirrhinum filipes Philip A. Munz 1949-4-12 13033 Riverside North base of Eagle Mts., Mojave Desert. 945 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
  CLARK-A1528-5812  Argemone corymbosa John C. Roos 1949-4-11 4245 Riverside Hayfield Comment
Read comments
Jan 28 2019
  UCR19212  Argemone corymbosa John C. Roos, Lucille Roos 1949-4-11 4245 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake Comment
  POM13026  Argemone munita subsp. munita P. A. Munz 1922-4-13 4925 Riverside Hayfields' Chuckwalla Valley 152 Comment
  RSA722445  Argemone munita subsp. munita J. R. Bruff 1928-4-3 181 Riverside 13 miles W of Desert Center. Comment
  CLARK-A1528-7798  Aristida purpurea var. nealleyi John C. Roos 1949-4-11 4242 Riverside Hayfield Comment
  RSA47456  Aristida purpurea var. nealleyi J. C. Roos, L. Roos 1949-4-11 4242 Riverside Hayfields [Hayfield], Colorado Desert. Comment
  UCR19678  Aristida purpurea var. nealleyi John C. Roos, Lucille Roos 1949-4-11 4242 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake Comment
  JOTR29449  Asclepias albicans La Doux, Tasha, Mike Bell 2006-3-8 1347 Riverside Joshua Tree National Park. Eagle Mountains, south of Hayfield Spring 548 Comment
  RSA289626  Asclepias californica D. A. Young 1969-5-25 P 484 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  POM187202  Asclepias erosa Marcus E. Jones 1931-9-15 28744 Riverside Hayfields. No. Colorado Desert. Comment
  UC479245  Asclepias erosa Marcus E. Jones, A. M. 1931-9-15 28744 Riverside Hayfields [Colorado Desert, toward Desert Center] Comment
Read comments
Jun 12 2012
  CLARK-A1528-1465  Asclepias subulata John C. Roos 1937-8-20 1226 Riverside Colorado Desert Comment
  SD146277  Astragalus nuttallianus B. Pitzer, Tracy Tennant 1998-2-21 3533 Riverside Hayfield Dry Lake, on the lakebed, 0.50 to 0.75 mile southeast of the pumping station. 395 Comment
  UCR112975  Astragalus nuttallianus B. G. Pitzer, T. Tennant 1998-2-21 3533 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  RSA653121  Astragalus nuttallianus var. imperfectus B. Pitzer, Tracy Tennant 1998-2-21 3533 Riverside Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi. SE of the pumping station. 396 Comment
  RSA0113041  Atrichoseris platyphylla R. F. Thorne 1963-3-29 32437 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 533 Comment
  RSA49380  Atrichoseris platyphylla Philip A. Munz 1949-4-12 13031 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  UCR101566  Atrichoseris platyphylla Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  POM642  Atriplex lentiformis T. S. Brandegee 1901-4-3 s.n. Riverside Salton, Colorado Desert. Comment
Read comments
Sep 11 2011
  JOTR36019  Ayenia compacta Harding, Mitzi, T. Herskovits 2012-3-16 226 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash 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
  CDA10492  Bebbia juncea T. C. Fuller 1962-10-2 9698 Riverside Hayfields, north of Highway 60-70 to Indio, ca. 14 miles west of Desert Center. 0 Comment
  RSA167478  Bebbia juncea R. F. Thorne 1963-3-29 32436 Riverside Mouth of arroyo S side Eagle Mts near Eagle Mts Pumping Station of Metropolitan Water District, 12 miles W of Desert Center Comment
Read comments
Apr 24 2011
  POM192490  Boerhavia coulteri Marcus E. Jones 1929-9-16 s.n. Riverside Hayfield, Near Desert Center. Colorado Desert. Comment
  UCR261844  Boerhavia coulteri Tim Thomas, Alice Karl 2011-10-18 5527 Riverside Sonoran (Colorado) Desert, Hayfield Lake, 4 mi east of Chiriaco Summit, just north of Hwy I-10, northwest portion of lake be 437 Comment
  VVC2319  Boerhavia coulteri Tim Thomas, Alice Karl 2011-10-18 5527 Riverside Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed. 437 Comment
  CAS-BOT-BC434528  Boerhavia intermedia Marcus E. Jones 1929-9-16 E 4796 Riverside Hayfields, Near Desert Center Comment
  UC406764  Boerhavia intermedia Marcus E. Jones, A. M. 1929-9-16 24796 Riverside near Desert Center (Hayfields); Hayfields Comment
  CAS-BOT-BC434550  Boerhavia wrightii Marcus E. Jones 1929-9-16 s.n. Riverside Hayfields, Near Desert Center Comment
  VVC2318  Boerhavia wrightii Tim Thomas, Alice Karl 2011-10-18 5528 Riverside Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed. 437 Comment
  CAS-BOT-BC145591  Bouteloua aristidoides Marcus E. Jones 1929-9-16 24721 Riverside Near Desert Center. Comment
  GH355634  Bouteloua aristidoides M. E. Jones 1929-9-16 1474 Unknown Hayfields, Near Desert Center Comment
Read comments
Jul 4 2012
  RSA192671  Bouteloua aristidoides Marcus E. Jones 1929-9-16 24721 Riverside Hayfield, Near Desert Center. Colorado Desert. Comment
  RSA778528  Bouteloua aristidoides Amber Swanson 2011-10-9 649 Riverside Around the Hayfields ext N of Hwy I-10. 426 Comment
  SACT000426  Bouteloua aristidoides Marcus Jones 1929-9-16 Riverside Comment
  LA11367  Bouteloua aristidoides var. aristidoides Marcus E. Jones; 1929-9-16 24721 Riverside Hayfields, near Desert Center Comment
  UC406747  Bouteloua aristidoides var. aristidoides Marcus E. Jones, A. M. 1929-9-16 24421 Riverside near Desert Center; Hayfields Comment
  GH355636  Bouteloua barbata M. E. Jones 1929-9-16 24716 Unknown Hayfields, Near Desert Center Comment
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Jul 4 2012
  POM192675  Bouteloua barbata Marcus E. Jones 1929-9-16 24716 Riverside Hayfield, Near Desert Center. Colorado Desert. Comment
  POM192679  Bouteloua barbata Marcus E. Jones 1929-9-16 24717 Riverside Hayfield, Near Desert Center. Colorado Desert. Comment
  CAS-BOT-BC145617  Bouteloua barbata var. barbata Marcus E. Jones 1929-9-16 24716 Imperial Near Desert Center. Comment
  UC406749  Bouteloua barbata var. barbata Marcus E. Jones, A. M. 1929-9-16 24716 Riverside near Desert Center; Hayfields Comment
  JOTR36016  Brandegea bigelovii Harding, Mitzi, T. Herskovits 2012-3-16 223 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash 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
  RSA164839  Brassica rapa Wesley O. Griesel 1963-4-10 758 Los Angeles Cultivated field, Pasadena 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
  UCR102744  Brassica tournefortii B. G. Pitzer 1998-2-1 3443 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  SD146100  Bromus madritensis subsp. rubens B. Pitzer, J. Ross 1998-3-8 3595 Riverside 395 Comment
  UCR114138  Bromus rubens B. G. Pitzer, J. Ross 1998-3-8 3595 Riverside Sonoran (Colorado) Desert, Hayfield Lake, on the lakebed, SE of pumping station, near center of lake 396 Comment
  UCR41690  Bromus rubens A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6036 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 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
  UCR117378  Camissonia boothii B. G. Pitzer 1998-2-1 3449 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 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
  UCR41604  Camissonia brevipes A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6027 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  RSA172301  Camissonia brevipes subsp. brevipes Robert F. Thorne 1963-3-29 32439 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 534 Comment
  RSA49362  Camissonia brevipes subsp. brevipes P. A. Munz 1949-4-11 13003 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 Comment
  UCR101587  Camissonia claviformis Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  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
  CAS-BOT-BC353427  Castela emoryi B. D. Stark 1929-4-1 1268 Riverside Chuckawalla, Colorado Desert Comment
  CAS-BOT-BC353428  Castela emoryi Marcus E. Jones 1929-9-16 24964 Riverside Near Desert Center Comment
  CDA35222  Castela emoryi T. C. Fuller 1962-10-2 9697 Riverside Hayfields, north of Highway 60-70 to Indio, ca. 14 miles west of Desert Center. 0 Comment
  GH347637  Castela emoryi Ivan M. Johnston 1930-6-15 3787 Unknown Hayfields, Mecca-Blythe Road Comment
  GH347638  Castela emoryi M. E. Jones 1929-9-16 84964 [?] Unknown Hayfields, Near Desert Center Comment
Read comments
Sep 18 2016
  HSC82838  Castela emoryi A. C. Sanders, D. Charlton, B. Pitzer 1986-3-1 6041 Riverside Hayfield Lake, NW end of the lake ca 0.5 mi. SW of the pumping station 412 Comment
  JEPS46518  Castela emoryi James Rennie 1916-6-15 Riverside in hayfield in Chuckwalla Mts.; in hayfield in Chuckwalla Mts. Comment
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May 6 2009
  JEPS46520  Castela emoryi E. E. Schellenger May 1920 Riverside Hayfields e Mecca (Colorado Desert); , Hayfields e of Mecca Comment
  POM14080  Castela emoryi Philip A. Munz, D. D. Keck 1922-4-14 4993 Riverside 'Hayfields', Chuckwalla Valley 152 Comment
Read comments
Apr 22 2011
  POM160613  Castela emoryi Marcus E. Jones 1929-3-9 s.n. Riverside Hayfields Comment
  POM171282B  Castela emoryi I. M. Johnston 1930-6-15 3787 Riverside Hayfields, Mecca-Blythe Road Comment
  POM8059  Castela emoryi Childs 1920-5-15 s.n. Riverside Hayfields'' at Northern end of Colorado Desert. Comment
  RSA1156  Castela emoryi B. D. Stark 1929-04 545 Riverside Hayfields, Chuckwalla Valley Comment
  RSA422123  Castela emoryi Anstruther Davidson s.n. Riverside Between Shaver's Well and Desert Center. Comment
  RSA517253  Castela emoryi Steve D. Boyd, Thomas S. Elias, Erika Winter 1986-2-18 1338 Riverside Shavers Valley: NW end of Hayfields Dry Lake, Comment
  RSA699035  Castela emoryi J. Russell Bruff 1928-4-3 182 Riverside 13 miles W of Desert Center Comment
  SD124707  Castela emoryi Andy C. Sanders, D. Charleton, B. Pitzer 1986-3-1 6041 Riverside Hayfield Lake, NW end of the lake ca. I(c) mile SW of pumping station 1349 Comment
  SEINET3074273 Image available Castela emoryi A. C. Sanders, D. Charlton, B. Pitzer 1986-3-1 6041 Riverside Hayfield Lake, NW end of the lake ca. 0.5 miles SW of the pumping station. 410 Comment
  UC406687  Castela emoryi Marcus E. Jones, A. M. 1929-9-16 24994 Riverside Hayfields , Hayfields (near Desert Center) Comment
  UC484199  Castela emoryi B. D. Stark April 1929 1268 Riverside Hayfields Colorado Desert, , Hayfields (Chuckawalla Valley) Comment
  UCR114171  Castela emoryi B. G. Pitzer, J. Ross 1998-3-8 3594 Riverside Sonoran (Colorado) Desert, Hayfield Lake, on the lakebed, SE of pumping station, near center of lake 396 Comment
  UCR163713  Castela emoryi B. G. Pitzer, T. Tennant 1998-2-21 3537 A Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  UCR24411  Castela emoryi John C. Roos 1937-8-20 1223 Riverside Sonoran (Colorado) Desert, Hayfields about 5-10 miles west 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
  UCR41641  Castela emoryi A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6041 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 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
  HSC82831  Caulanthus lasiophyllus A. C. Sanders, B. Pitzer, D. Charlton 1986-3-1 6016 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
  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
  RSA176336  Chaenactis carphoclinia var. carphoclinia R. F. Thorne 1963-3-29 32443 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 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
  RSA49385  Chaenactis macrantha Philip A. Munz 1949-4-12 13027 Riverside North base of Eagle Mts., Mojave Desert 945 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
  UC217943  Chaenactis stevioides P. A. Munz and D. Keck 1922-4-9 4819 Riverside Hayfields, Chuckawalla Valley Colorado Desert, Chuckawalla Valley 152 Comment
  UCSB7215  Chaenactis stevioides Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shaver Summit Comment
  POM13922  Chaenactis stevioides var. stevioides P. A. Munz, D. D. Keck 1922-4-9 4819 Riverside Hayfields, Chuckawalla Valley. 152 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
  RSA49386  Chaenactis stevioides var. stevioides P. A. Munz 1949-4-12 13026 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  POM14016  Chamaesyce albomarginata P. A. Munz, D. D. Keck 1922-4-13 4926 Riverside Hayfields,' Chuckwalla Valley 152 Comment
  RSA316541  Chamaesyce micromera Marcus E. Jones 1929-9-16 24879 Riverside Hayfield, Near Desert Center. Colorado Desert. Comment
Read comments
Apr 5 2011
  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
  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
  RSA0020375  Chloracantha spinosa Duncan S. Bell 2013-10-29 6089 Riverside Hayfields Dry Lake; north of Interstate 10, about a mile southwest of the pumping station. 403 Comment
  UC2031354  Chloracantha spinosa Duncan S. Bell 2013-10-29 6089 Riverside Colorado Desert, Chocolate-Chuckwalla Mountains:Hayfields Dry Lake, N of Interstate10, about 1 mile SW of the pumping station. Comment
  UCR260163  Chloracantha spinosa Duncan S. Bell 2013-10-29 6089 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake; north of Interstate 10, about a mile southwest of the pumping station 403 Comment
  JEPS57601  Chorizanthe brevicornu var. brevicornu E. E. Schellenger May 1920 Riverside e Mecca (Hayfields); Colorado Desert, e of Mecca 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
  JEPS57635  Chorizanthe corrugata E. E. Schellenger May 1920 Riverside near Mecca (Hayfields, Colorado Desert); Colorado Desert, Hayfields Comment
  JEPS57733  Chorizanthe rigida E. E. Schellenger May 1928 Riverside e Mecca (Hayfields, Colorado Desert); Colorado Desert, Hayfields, e of Mecca 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
  UCSB30406  Chylismia brevipes Krasner, Larry 1975-3-22 Riverside 11 miles west of Desert Center on Highway 10 365 Comment
  GMDRC9800  Chylismia brevipes subsp. brevipes J. M. Andre 2017-3-1 38009 Riverside Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit 506 Comment
  UC1602279  Chylismia claviformis subsp. peirsonii T. S. Brandegee Apr. 1901 Riverside Colorado Desert 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
  UC89484  Coreopsis californica var. californica T. S. Brandegee April, 1901 Riverside Colorado Desert Comment
  POM667082  Coryphantha alversonii Clarence Bonner, Alice Bonner 1961-12-1 s.n. (M E) Riverside Eagle Mountain Range: East end of the Eagle Mountains near Eagle Mountain pumping station, Metropolitan Water District Aqueduct. 305 Comment
  RSA656148  Coryphantha alversonii Clarence Bonner 1961-12-1 s.n. Riverside Eagle Mountain Range: East end of the Eagle Mountains near Eagle Mountain pumping station, Metropolitan Water District Aqueduct. 305 Comment
  CLARK-A1528-2210  Cryptantha angustifolia John C. Roos 1947-2-14 3254 Riverside Eagle Mountains Comment
  CLARK-A1528-5391  Cryptantha angustifolia John C. Roos 1947-2-14 3254 Riverside Eagle Mountains Comment
  POM368198  Cryptantha angustifolia D. A. Young 1969-3-28 342 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  UC280441  Cryptantha angustifolia E. E. Schellenger 1920-5-1 Riverside e of Mecca (Hayfields); Colorado Desert Comment
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Jun 18 2011
  UCR101576  Cryptantha angustifolia Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  JOTR28812  Cryptantha barbigera La Doux, Tasha 2005-2-7 1080 Riverside Joshua Tree National Park. Above Hayfield Dry Lake 553 Comment
  UCR41599  Cryptantha barbigera A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6021 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  UC78453  Cryptantha costata T. S. Brandegee 1901-4-4 Riverside Colorado Desert Comment
  JOTR29447  Cryptantha dumetorum La Doux, Tasha, Mike Bell 2006-3-8 1345 Riverside Joshua Tree National Park. Hayfield spring 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
  JOTR28750  Cryptantha maritima La Doux, Tasha 2005-2-7 1031 Riverside Joshua Tree National Park. above Hayfield Dry lake 553 Comment
  UCR101575  Cryptantha maritima Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  SBBG14710  Cryptantha pterocarya var. pterocarya H. and M. Dearing 1937-4-10 Riverside near Hayfield Comment
  JOTR36024  Cryptantha racemosa Harding, Mitzi, T. Herskovits 2012-3-16 230 Riverside Joshua Tree National Park. Cholla Wash Comment
  POM13893  Cryptantha racemosa P. A. Munz, D. D. Keck 1922-4-9 4829 Riverside S base of Eagle Mts 229 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
  UC217942  Cryptantha racemosa P. A. Munz, D. Keck 1922-4-9 4829 Riverside s base Eagle Mts.; Colorado Desert 228 Comment
  UCR101577  Cryptantha racemosa Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  SEINET716811  Cylindropuntia ramosissima R. Puente, G. and A. Puente-Reinhardt 1998-11-7 741 Riverside 1.5mi e of Chirico Summit Comment
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Jan 7 2016
  JOTR36023  Cymopterus panamintensis var. acutifolius Harding, Mitzi, T. Herskovits 2012-3-16 229 Riverside Joshua Tree National Park. Cholla Wash Comment
  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
  UCR41813  Dalea mollis A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6039 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 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
  CLARK-A1528-2775  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CLARK-A1528-4965  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  GMDRC9801  Diplacus bigelovii J. M. Andre 2017-3-1 38010 Riverside Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit 506 Comment
  CAS-BOT-BC150939  Diplacus bigelovii var. bigelovii H. Dearing; M. Dearing 1937-5-10 s 1638 Riverside Near Hayfields, Colorado Desert Comment
  UCR134640  Ditaxis californica Nancy K. Cione 2004-4-30 s.n. Riverside Chuckwalla Valley, S of Eagle Mtns, north of Hayfield Dry Lake, near Red Cloud Road 415 Comment
  GMDRC9814  Ditaxis lanceolata J. M. Andre 2017-3-1 38018 Riverside Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit 506 Comment
  JOTR29446  Ditaxis lanceolata La Doux, Tasha, Mike Bell 2006-3-8 1344 Riverside Joshua Tree National Park. Hayfield spring Comment
  JOTR36013  Ditaxis lanceolata Harding, Mitzi, T. Herskovits 2012-3-16 220 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  RSA171926  Ditaxis lanceolata R. F. Thorne 1963-3-29 32442 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 533 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
  SBBG87466  Ditaxis lanceolata A. C. Sanders with D. Charlton, B. Pitzer 1986-3-1 6026 Riverside NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station 411 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
  UCR41800  Ditaxis lanceolata A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6026 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 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
  UCR117379  Ditaxis neomexicana B. G. Pitzer 1998-2-1 3450 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UCR167552  Ditaxis neomexicana Nancy K. Cione 2004-4-30 s.n. Riverside Chuckwalla Valley, S of Eagle Mtns, north of Hayfield Dry Lake, near Red Cloud Road 415 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
  CLARK-A1528-1803  Dyssodia porophylloides John C. Roos 1947-2-15 3239 Riverside Eagle Mountains 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
  RSA172266  Emmenanthe penduliflora Robert F. Thorne 1963-3-29 32438 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 534 Comment
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Apr 24 2011
  UCR101581  Emmenanthe penduliflora Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  UCR41850  Emmenanthe penduliflora A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6037 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  RSA696888  Encelia farinosa W. Marquart 1938-3-12 s.n. Riverside 15 mi. W. of Desert Center on main highway. Comment
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Apr 5 2011
  UCR101568  Encelia farinosa Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR41600  Encelia farinosa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6032 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  RSA171035  Encelia farinosa var. farinosa R. F. Thorne 1963-3-29 32434 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 533 Comment
  JOTR29448  Ephedra nevadensis La Doux, Tasha, Mike Bell 2006-3-8 1346 Riverside Joshua Tree National Park. Eagle Mountains, south of Hayfield Spring 548 Comment
  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
  UCR41691  Eremalche exilis A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6034 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  UCR102741  Eremalche rotundifolia B. G. Pitzer 1998-2-1 3439 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  RSA49365  Eremothera boothii subsp. condensata P. A. Munz 1949-4-11 13000 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 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
  POM13575  Erigeron divergens P. A. Munz, D. D. Keck 1922-4-13 4924 Riverside Hayfields,' Chuckwalla Valley 152 Comment
  UC219102  Erigeron divergens P. A. Munz, D. Keck 1922-4-13 4924 Riverside Colorado Desert, Chuckawalla Valley 152 Comment
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Jun 11 2012
  RSA654192  Eriodictyon trichocalyx Marilyn Porter 1991-5-17 18 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 Comment
  CDA22575  Eriogonum deflexum T. C. Fuller 1962-10-2 9699 Riverside Hayfields, north of Highway 60-70 to Indio, ca. 14 miles west of Desert Center. 0 Comment
  UCR101592  Eriogonum deflexum Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
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Dec 15 2011
  RSA49381  Eriogonum fasciculatum var. flavoviride P. A. Munz 1949-4-12 13030 Riverside North base of Eagle Mts., Mojave Desert. 945 Comment
  RSA654195  Eriogonum fasciculatum var. foliolosum Marilyn Porter 1991-5-17 24 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 Comment
  JEPS56815  Eriogonum inflatum E. E. Schellenger May 1920 Riverside Hayfields near Mecca; Colorado Desert Comment
  RSA698441  Eriogonum inflatum J. R. Bruff 1928-4-3 173 Riverside 13 miles W of Desert Center. Comment
  UC666511  Eriogonum inflatum var. deflatum Annie M. Alexander and Louise Kellogg 1941-5-28 2263 Riverside e on Metropolitan Aqueduct road Hayfield (on bank below road); Colorado Desert Comment
  CAS-BOT-BC253015  Eriogonum reniforme Annie M. Alexander; Louise Kellogg 1941-5-28 2261 Riverside Metropolitan Aqueduct Road, east of Hayfield Comment
  UC666502  Eriogonum reniforme Annie M. Alexander and Louise Kellogg 1941-5-28 2261 Riverside e Hayfield (on bank below Metropolitan Aqueduct Road) Comment
  CAS-BOT-BC263526  Eriogonum thomasii Annie M. Alexander; Louise Kellogg 1941-5-28 2260 Riverside Metropolitan Aqueduct Road, east of Hayfield Comment
  CAS-BOT-BC263543  Eriogonum thomasii Philip A. Munz 1949-4-11 13002 Riverside Eastern end of Joshua Tree National Monument, Mohave Desert 944 Comment
  RSA49363  Eriogonum thomasii P. A. Munz 1949-4-11 13002 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 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
  UC666503  Eriogonum thomasii Annie M. Alexander and Louise Kellogg 1941-5-28 2260 Riverside Metropolitan Aqueduct road e Hayfield Comment
  UCR101593  Eriogonum thomasii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR139388  Eriogonum thomasii P. A. Munz 1949-4-11 13002 Riverside Mojave Desert, eastern end of Joshua Tree National Monument 945 Comment
  UC666509  Eriogonum trichopes Annie M. Alexander and Louise Kellogg 1941-5-28 2262 Riverside Metropolitan Aqueduct Road e Hayfield 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
  UCR102738  Erodium cicutarium B. G. Pitzer 1998-2-1 3433 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  POM14030  Erodium texanum P. A. Munz, D. Keck 1922-4-13 4923 Riverside Hayfields, Chuckwalla Valley 152 Comment
  UC217947  Erodium texanum P. A. Munz, D. Keck 1922-4-13 4923 Riverside Hayfield Colorado Desert, Chuckwalla Valley 152 Comment
  UCR112971  Erodium texanum B. G. Pitzer, T. Tennant 1998-2-21 3537 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  RSA445666  Eschscholzia minutiflora Robert M. Perkins 1937-3-15 422 Riverside 10 miles W of Desert Center. Comment
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Apr 5 2011
  UCR101588  Eschscholzia parishii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  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
  POM13894  Eucrypta micrantha P. A. Munz, D. D. Keck 1920-4-9 4830 Riverside S base of Eagle Mtns. 213 Comment
  UCR240520  Euphorbia abramsiana Tim Thomas, Alice Karl 2011-10-18 5526 Riverside Sonoran (Colorado) Desert, Hayfield Lake, 4 mi east of Chiriaco Summit, just north of Hwy I-10, northwest portion of lake be 437 Comment
  VVC2056  Euphorbia abramsiana Tim Thomas, Alice Karl 2011-10-18 5526 Riverside Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed. 437 Comment
  POM13909  Euphorbia eriantha P. A. Munz, D. D. Keck 1922-4-13 4820 Riverside Eagle Mountains. 244 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
  UC217898  Euphorbia eriantha P. A. Munz, D. Keck 1922-4-13 4820 Riverside Eagle Mountains, Colorado Desert 213 Comment
  UCR101579  Euphorbia eriantha Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  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
  JOTR36007  Euphorbia setiloba Harding, Mitzi, T. Herskovits 2012-3-16 215 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  SBBG3962  Fagonia laevis H. and M. Dearing 1937-4-10 967 Riverside near Hayfield 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
  RSA182257  Fouquieria splendens Robert F. Thorne, James Henrickson 1963-3-29 32440 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 534 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
  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
  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
  RSA49384  Galium stellatum Philip A. Munz 1949-4-12 13028 Riverside North base of Eagle Mts., Mojave Desert. 945 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
  RSA470223  Gilia capitata subsp. abrotanifolia Anstruther Davidson s.n. Riverside Between Shaver's Well and Desert Center. Comment
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Sep 20 2011
  UCR101590  Gilia scopulorum Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  UCR101591  Gilia stellata Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  GMDRC9802  Hibiscus denudatus J. M. Andre 2017-3-1 38016 Riverside Eagle Mountains: south end of range, 2.8 mi. north of Interstate 10 at Hayfield Rd exit 506 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
  POM14017  Hoffmannseggia glauca P. A. Munz, D. D. Keck 1922-4-13 4927 Riverside Hayfields, Chuckwalla Valley 152 Comment
  SD146088  Hordeum murinum B. Pitzer, J. Ross 1998-3-8 3597 Riverside Colorado Desert: Hayfield Lake, on the lakebed, southeast of pumping station, near center of lake (Hayfield Spring [UTM 10km cell: 11S PH-2E, 2N. Hayfield Lake]) 395 Comment
  UCR114139  Hordeum murinum B. G. Pitzer, J. Ross 1998-3-8 3597 Riverside Sonoran (Colorado) Desert, Hayfield Lake, on the lakebed, SE of pumping station, near center of lake 396 Comment
  UCR41803  Hordeum murinum A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6035 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  SBBG87467  Hordeum murinum subsp. leporinum A. C. Sanders with D. Charlton, B. Pitzer 1986-3-1 6035 Riverside NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station 1350 Comment
  CLARK-A1528-1959  Hymenoclea salsola John C. Roos 1947-2-15 3246 Riverside Eagle Mountains Comment
  UCR41588  Hymenoclea salsola A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6023 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  JOTR36017  Hyptis emoryi Harding, Mitzi, T. Herskovits 2012-3-16 224 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash 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
  RSA643262  Hyptis emoryi R. D. Goeden, D. W. Ricker 1971-4-1 s.n. Riverside Sonoran Desert: Chuckwalla Mountains at Granite Well, SW of Desert Center, 0.4 mi. past sign saing ''Edmund C. Jaeger Nature Sanctuary'' in bottom of canyon at old road crossing. 366 Comment
  UCR101578  Isomeris arborea Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR41598  Isomeris arborea A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6033 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  CLARK-A1528-4430  Kallstroemia californica John C. Roos 1963-10-24 Riverside Hayfield Comment
  RSA648667  Kallstroemia californica J. C. Roos 1963-10-24 s.n. Riverside Hayfields, Colorado Desert. Comment
  UC4066990  Kallstroemia californica Marcus E. Jones, A. M. 1929-9-16 Riverside Hayfields near Desert Center; Hayfields, near Desert Center Comment
  UCR26258  Kallstroemia californica John C. Roos 1963-10-24 s.n. Riverside Sonoran (Colorado) Desert, Hayfield, Colorado Desert 427 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
  JEPS53617  Lepidium fremontii E. E. Schellenger May 1920 Riverside s. Mecca (Chuckwalla Mts.); Colorado Desert, Chuckwalla Mts. Comment
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Sep 8 2011
  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
  POM14361  Lepidium lasiocarpum P. A. Munz, D. D. Keck 1922-4-9 4806 Riverside Hayfields, Chuckawalla Valley. 152 Comment
  POM48142  Lepidium lasiocarpum E. E. Schellenger 1920-05 s.n. Riverside E of Mecca, Colorado Desert. Comment
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Jun 18 2011
  SD124698  Lepidium lasiocarpum A. C. Sanders, D. Charlton & B. Pitzer 1986-3-1 6031 Riverside Hayfield Lake, northwest end of the lake, ca. 0.5 mile southwest of the pumping station. 409 Comment
  UCR102748  Lepidium lasiocarpum B. G. Pitzer 1998-2-1 3448 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UCR41832  Lepidium lasiocarpum A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6031 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  UCR116305  Lepidospartum squamatum B. G. Pitzer 1998-2-1 3450 .2 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  POM13425  Lesquerella tenella P. A. Munz, D. D. Keck 1922-4-9 4815 Riverside Hayfields, Chuckawalla Valley. 152 Comment
  RSA49186  Lesquerella tenella P. A. Munz 1949-4-12 13035 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  UC217892  Lesquerella tenella P. A. Munz and D. Keck 1922-4-9 4815 Riverside Hayfields; Chuckawalla Valley Hayfields; Colorado Desert, Chuckawalla Valley, Hayfields 152 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
  RSA654185  Lobularia maritima Marilyn Porter 1991-5-17 25 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 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
  RSA49188  Lotus rigidus P. A. Munz 1949-4-12 13034 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  RSA654189  Lotus scoparius var. brevialatus Marilyn Porter 1991-5-17 26 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 Comment
  RSA49387  Lotus tomentellus P. A. Munz 1949-4-12 13025 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  POM195609  Lupinus Marcus E. Jones 1930-4-2 s.n. Riverside Hayfields Comment
  CLARK-A1528-2816  Lupinus arizonicus John C. Roos 1947-2-15 3268 Riverside Eagle Mountains 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
  UCR41601  Lupinus arizonicus A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6022 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  RSA8059  Lupinus caudatus H. A. Barker 1927-7-15 806 Lassen Desert east of Beckwith near highway. Comment
  POM14254  Lycium andersonii Philip A. Munz, D. D. Keck 1922-4-9 4811 Riverside South base of Eagle Mtns. 183 Comment
  RSA49383  Lycium andersonii Philip A. Munz 1949-4-11 12999 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 Comment
  UC218100  Lycium andersonii P. A. Munz, D. Keck 1922-4-9 4811 Riverside s base Eagle Mtns.; Colorado Desert 182 Comment
  UCR101596  Lycium andersonii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR139389  Lycium andersonii P. A. Munz 1949-4-11 12999 Riverside Mojave Desert, eastern end of Joshua Tree National Monument 945 Comment
  UCR101571  Machaeranthera tortifolia Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  POM14253  Malacothrix coulteri P. A. Munz 1922-4-9 4813 Riverside Hayfields, Chuckwalla Valley 152 Comment
  RSA721133  Malacothrix coulteri J. R. Bruff 1928-4-3 175 Riverside 13 miles W of Desert Center. Comment
  SBBG87399  Malacothrix coulteri A. C. Sanders with D. Charlton, B. Pitzer 1986-3-1 6029 Riverside NW end of Hayfield Lake, ca. 0.5 mi SW of the pumping station 411 Comment
  UC218090  Malacothrix coulteri P. A. Munz, D. Keck 1922-4-9 4813 Riverside Chuckwalla Valley, Hayfields Colorado Desert, Chuckwalla Valley, Hayfields 152 Comment
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May 1 2006
  UCR112969  Malacothrix coulteri B. G. Pitzer, T. Tennant 1998-2-21 3534 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  UCR41804  Malacothrix coulteri A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6029 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  SEINET2063249 Image available Marina parryi B. Pitzer 1998-2-1 3444 Riverside Hayfield Dry Lake: Alluvial fan on N side of lakebed, from paved road down to lakebed. 426 Comment
  UCR102745  Marina parryi B. G. Pitzer 1998-2-1 3444 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UCR41602  Marina parryi A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6024 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  RSA654194  Melica imperfecta Marilyn Porter 1991-5-17 16 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 Comment
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Feb 6 2008
  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
  POM14265  Mentzelia affinis P. A. Munz 1922-4-9 4812 Riverside Hayfields, Chuckawalla Valley. 152 Comment
  RSA7885  Mentzelia albicaulis H. A. Barker 1927-7-15 807 Lassen Desert east of Beckwith [Beckwourth], near highway. Comment
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Dec 30 2016
  UCSB4255  Mentzelia albicaulis Beeks, Richard 1952-4-5 Riverside 12 miles east of Shaver Summit Comment
  SEINET3094632 Image available Mentzelia involucrata Barbara Gayle Pitzer 1998-2-1 3445 Riverside Sonoran (Colorado) Desert; Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UC809741  Mentzelia involucrata Philip A. Munz 1949-4-12 13032 Riverside North base of Eagle Mts. Mohave Desert 944 Comment
  UCR102746  Mentzelia involucrata B. G. Pitzer 1998-2-1 3445 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  RSA49187  Mentzelia involucrata var. megalantha P. A. Munz 1949-4-12 13032 Riverside North base of Eagle Mts., Mojave Desert. 945 Comment
  RSA49364  Mentzelia involucrata var. megalantha P. A. Munz 1949-4-11 13001 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 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
  RSA49379  Mentzelia jonesii P. A. Munz 1949-4-11 12997 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 Comment
  UCR166291  Mentzelia jonesii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UC479436 Image available Mentzelia multiflora subsp. longiloba Marcus E. Jones, A. M. 1931-9-15 Riverside Hayfields Comment
  CLARK-A1528-4233  Mimulus bigelovii John C. Roos 1947-2-15 3260 Riverside Hayfield Comment
  UCR101595  Mimulus bigelovii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  JOTR28918  Mimulus bigelovii var. bigelovii La Doux, Tasha 2005-2-7 1154 Riverside Joshua Tree National Park. Above Hayfield Dry Lake 553 Comment
  RSA172237  Mimulus bigelovii var. bigelovii Robert F. Thorne 1963-3-29 32432 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 535 Comment
  CAS-BOT-BC434815  Mirabilis laevis var. retrorsa Philip A. Munz 1949-4-12 13036 Riverside North base of Eagle Mts., Mohave Desert 944 Comment
  RSA49185  Mirabilis laevis var. retrorsa P. A. Munz 1949-4-12 13036 Riverside North base of Eagle Mts., Mojave Desert. 945 Comment
  RSA49376  Mirabilis laevis var. villosa P. A. Munz 1949-4-12 13037 Riverside North base of Eagle Mts., Mojave Desert. 945 Comment
  UCR102742  Monoptilon bellioides B. G. Pitzer 1998-2-1 3440 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  JOTR36006  Muhlenbergia microsperma Harding, Mitzi, T. Herskovits 2012-3-16 214 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash 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
  UC217897  Nama P. A. Munz, D. Keck 1922-4-13 4931 Riverside Hayfields Colorado Desert, Chuckawalla Valley, Hayfields (Chuckawalla Valley, Colorado Desert, dry basin) 152 Comment
  UCR101582  Nama demissa Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCSB5309  Nama demissa Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shavers Summit Comment
  POM13913  Nama demissa var. deserti P. A. Munz, D. D. Keck 1922-4-10 4932 Riverside Eagle Mtns. 3 miles northeast of Hay fields. 213 Comment
  RSA49361  Nama demissa var. deserti P. A. Munz 1949-4-11 13005 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 Comment
  POM14101  Nama hispida var. revoluta P. A. Munz, D. D. Keck 1922-4-13 4931 Riverside Hayfields, Chuckwalla Valley 152 Comment
  HSC101509  Nama hispida var. spathulata J. P. Smith, J. O. Sawyer, R. J. Cole 2010-4-14 12754 Riverside Roadside 455 Comment
  POM13914  Nama hispida var. spathulata P. A. Munz 1922-4-9 4803 Riverside Hayfields, Chuckawalla Valley. 152 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
  POM178629  Nemacladus orientalis Marcus E. Jones 1930-4-2 26444 Riverside Hayfields Comment
  POM316889  Nemacladus orientalis Marcus E. Jones 1930-4-2 26444 Riverside Hayfields 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
  UC110963  Nemacladus ramosissimus T. S. Brandegee Apr 1901 Riverside Colorado Desert Comment
  RSA8061  Nicotiana attenuata H. A. Barker 1927-7-15 805 San Bernardino Desert east of 'Beckwith', near highway. Comment
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Dec 30 2016
  RSA654169  Nicotiana glauca Marilyn Porter 1991-5-17 35 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 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
  UCR101597  Nicotiana obtusifolia Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  UCR41640  Oenothera primiveris A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6030 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  POM13025  Oenothera primiveris subsp. bufonis P. A. Munz, D. D. Keck 1922-4-13 4922 Riverside Eagle Mts, Colorado Desert. 213 Comment
  RSA734944  Oenothera scapoidea W. Marquart 1938-3-12 s.n. Riverside 10 mi. W. of Desert Center. Comment
  UCR117377  Oligomeris linifolia B. G. Pitzer 1998-2-1 3446 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  VVC2045  Panicum hirticaule var. hirticaule Tim Thomas, Alice Karl 2011-10-18 5530 Riverside Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed. 437 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
  POM268769  Pectis papposa Marcus E. Jones 1929-9-16 s.n. Riverside Hayfield, Near Desert Center. Colorado Desert. 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
  VVC2317  Pectis papposa Tim Thomas, Alice Karl 2011-10-18 5529 Riverside Sonoran Desert, Hayfield Lake 4 miles east of Chiriaco Summit; just north of Hwy 10. In northwest portion of lake bed. 437 Comment
  UC90553  Pectis papposa var. papposa T. S. Brandegee 1901-4-4 Riverside Colorado Desert 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
  JOTR28813  Pectocarya recurvata La Doux, Tasha 2005-2-7 1081 Riverside Joshua Tree National Park. Above Hayfield Dry Lake 553 Comment
  SBBG6313  Pectocarya recurvata H. and M. Dearing 1937-4-10 1538 Riverside near Hayfield 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
  JOTR28919  Pentagramma triangularis subsp. maxonii La Doux, Tasha 2005-2-7 1155 Riverside Joshua Tree National Park. Above Hayfield Dry Lake 553 Comment
  JOTR36021  Pentagramma triangularis subsp. maxonii Harding, Mitzi, T. Herskovits 2012-3-16 228 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  UCR101572  Perityle emoryi Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR102743  Perityle emoryi B. G. Pitzer 1998-2-1 3441 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  CLARK-A1528-2030  Peucephyllum schottii John C. Roos 1947-2-15 3247 Riverside Eagle Mountains Comment
  JOTR29450  Peucephyllum schottii La Doux, Tasha, Mike Bell 2006-3-8 1348 Riverside Joshua Tree National Park. Eagle Mountains, south of Hayfield Spring 548 Comment
  JOTR36012  Peucephyllum schottii Harding, Mitzi, T. Herskovits 2012-3-16 219 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  POM14297  Peucephyllum schottii P. A. Munz, D. D. Keck 1922-4-9 4810 Riverside South base of Eagle Mtns. 183 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
  SEINET2042416 Image available Phacelia crenulata B. Pitzer 1998-2-1 3442 Riverside Hayfield Spring Quad 7.5': Hayfield Dry Lake, alluvial fan on N side of lakebed, from paved road lakebed. 427 Comment
  UCR117376  Phacelia crenulata B. G. Pitzer 1998-2-1 3442 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  JOTR36008  Phacelia crenulata var. minutiflora Harding, Mitzi, T. Herskovits 2012-3-16 216 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  UCR101583  Phacelia distans Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR101584  Phacelia vallis-mortae Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  JOTR29443  Phoradendron californicum La Doux, Tasha, Mike Bell 2006-3-8 1341 Riverside Joshua Tree National Park. Hayfield spring Comment
  JOTR29444  Phoradendron californicum La Doux, Tasha, Mike Bell 2006-3-8 1342 Riverside Joshua Tree National Park. Hayfield spring Comment
  JOTR29445  Phoradendron californicum La Doux, Tasha, Mike Bell 2006-3-8 1343 Riverside Joshua Tree National Park. Hayfield spring 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
  SD146132  Phoradendron californicum B. Pitzer 1998-3-8 3602 Riverside Colorado Desert; S-facing fan on N side of Hayfield lake, along road to pumping plant 427 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
  UCR114127  Phoradendron californicum B. G. Pitzer, J. Ross 1998-3-8 3602 Riverside Sonoran (Colorado) Desert, S-facing fan on north side of Hayfield Lake, along road to pumping plant. 427 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
  JOTR36018  Physalis crassifolia Harding, Mitzi, T. Herskovits 2012-3-16 225 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  UCR102739  Physalis crassifolia B. G. Pitzer 1998-2-1 3435 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  UC173743  Plantago erecta T. S. Brandegee Apr 1901 Riverside Colorado Desert Comment
  UCR101589  Plantago insularis Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  RSA698379  Plantago ovata J. Russell Bruff 1928-4-3 s.n. Riverside 13 miles W of Desert Center Comment
  UC124296  Plantago ovata T. S. Brandegee 1901-4-4 Riverside Colorado Desert Comment
  POM14263  Plantago ovata var. fastigiata P. A. Munz, D. D. Keck 1922-4-9 4816 Riverside Hayfields, Chuckawalla Valley. 152 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
  UCR134638  Proboscidea althaeifolia Nancy K. Cione 2004-4-28 s.n. Riverside Chuckwalla Valley, S of Eagle Mtns, NE of Hayfield Dry Lake, near Red Cloud Road 415 Comment
  RSA643304  Prosopis glandulosa var. torreyana R. D. Goeden, D. W. Ricker 1971-4-1 s.n. Riverside Sonoran Desert: Chuckwalla Mountains at Granite Well, SW of Desert Center, 0.4 mi. past sign saing ''Edmund C. Jaeger Nature Sanctuary'' in bottom of canyon at old road crossing. 366 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
  RSA643307  Psorothamnus schottii R. D. Goeden, D. W. Ricker 1971-3-2 s.n. Imperial Salton Trough: Signal Mountain, 1.5 mi. S of Hwy 98 and 0.5 mi. W of Mount Signal Rd. 15 Comment
  RSA404273  Psorothamnus spinosus Christopher Davidson 1974-6-15 2292 Riverside Interstate 10, ca. 5 mi. E of Chiriaco Summit. 457 Comment
  UCR112974  Pterostegia drymarioides B. G. Pitzer, T. Tennant 1998-2-21 3542 Riverside Sonoran (Colorado) Desert, S-facing fan on north side of Hayfield Lake, along road to pumping plant. 427 Comment
  UCR101585  Salazaria mexicana Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  UCR101586  Salvia columbariae Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 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
  RSA654193  Salvia mellifera Marilyn Porter 1991-5-17 21 Los Angeles Upland at San Bernardino County line, south from parking area at Shinn Road and Mount Baldy Road. Followed abandoned road beginning from road side to San Antonio Dam. 670 Comment
  CLARK-A1528-4964  Salvia mohavensis John C. Roos 1947-2-15 3234 Riverside Eagle Mountains Comment
  RSA289611  Sambucus mexicana D. A. Young 1969-5-25 P 492 San Bernardino end of Haven Avenue N. of Chaffey College 457 Comment
  UCR101564  Sarcostemma hirtellum Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  HSC101533  Schismus barbatus J. P. Smith, J. O. Sawyer, R. J. Cole 2010-4-14 12755 Riverside Roadside 455 Comment
  UCR102747  Schismus barbatus B. G. Pitzer 1998-2-1 3447 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  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
  JOTR36020  Simmondsia chinensis Harding, Mitzi, T. Herskovits 2012-3-16 227 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  SBBG71063  Simmondsia chinensis R. Hoffmann 1929-2-9 Riverside Mecca-Blythe 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
  UCR103723  Sisymbrium irio B. G. Pitzer 1998-2-1 3432 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UCR112970  Sisymbrium irio B. G. Pitzer, T. Tennant 1998-2-21 3532 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 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
  CLARK-A1528-3245  Sphaeralcea ambigua John C. Roos 1947-2-15 3240 Riverside Eagle Mountains Comment
  UCSB4097  Sphaeralcea ambigua Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shavers Summit Comment
  RSA172244  Sphaeralcea ambigua subsp. ambigua Robert F. Thorne 1963-3-29 32433 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 534 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
  JOTR36014  Sphaeralcea ambigua var. ambigua Harding, Mitzi, T. Herskovits 2012-3-16 221 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  RSA49382  Sphaeralcea ambigua var. keckii P. A. Munz 1949-4-12 13029 Riverside North base of Eagle Mts., Mojave Desert. 945 Comment
  JEPS67348  Sphaeralcea angustifolia Marjorie D. Clary 1931-11-29 447 Kern Hayfields. Chuckawalla Mts. Comment
  UC217886  Sphaeralcea angustifolia P. A. Munz and D. Keck 1922-4-13 4928 Riverside Hayfields; Colorado Desert, Chuckawalla Valley Comment
  UCR112967  Sphaeralcea emoryi B. G. Pitzer, Tracy Tennant 1998-2-21 3536 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  UCR163548  Sphaeralcea emoryi B. G. Pitzer, Jeffrey Ross 1998-3-8 3596 Riverside Sonoran (Colorado) Desert, Hayfield Lake, on the lakebed, SE of pumping station, near center of lake 396 Comment
  UCR41618  Sphaeralcea emoryi subsp. nevadensis A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6028 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  RSA353591  Sphaeralcea emoryi var. nevadensis A. C. Sanders, D. Charlton, B. Pitzer 1986-3-1 6028 Riverside Hayfield Lake, NW end of the lake ca. 1/2 mi. SW of the pumping station. 412 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
  JOTR36010  Stillingia linearifolia Harding, Mitzi, T. Herskovits 2012-3-16 218 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  JOTR36011  Stillingia linearifolia Harding, Mitzi, T. Herskovits 2012-3-16 218 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash 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
  UC1595086  Stylocline sonorensis Marcus E. Jones, A. M. 1930-4-2 25845 Riverside n Chuckwalla Mts.; Colorado Desert, Hayfields Comment
  UCR101580  Tetracoccus hallii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  CAS-BOT-BC220981  Teucrium cubense P. A. Munz; D. Keck 1922-4-13 4929 Riverside Colo. Desert. Hayfields, Chuckwalla Valley 152 Comment
  POM184549  Teucrium cubense subsp. depressum C. L. Hitchcock 1932-4-7 12197 Riverside the Hayfields. Comment
  POM187201  Teucrium cubense subsp. depressum Marcus E. Jones 1931-9-15 28745 Riverside Hayfields. No. Colorado Desert. Comment
  UC218015  Teucrium cubense subsp. depressum P. A. Munz, D. Keck 1922-4-13 4929 Riverside Hayfields; Colorado Desert, Chuckwalla Valley 152 Comment
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Mar 2 2014
  UC479248  Teucrium cubense subsp. depressum Marcus E. Jones, A. M. 1931-9-15 28743 Riverside Hayfields Comment
  UC494393  Teucrium cubense subsp. depressum C. L. Hitchcock 1932-4-7 12197 Riverside Hayfields; e Riverside County Comment
  UC884408  Teucrium cubense subsp. depressum P. A. Munz, D. Keck 1922-4-13 4929 Riverside Hayfields; Colorado Desert, Chuckwalla Valley 152 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
  SEINET2042415 Image available Tribulus terrestris B. Pitzer 1998-2-1 3438 Riverside Hayfield Spring Quad 7.5': Hayfield Dry Lake, alluvial fan on N side of lakebed, from paved road lakebed. 427 Comment
  UCR117373  Tribulus terrestris B. G. Pitzer 1998-2-1 3438 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  SEINET2042414 Image available Trichoptilium incisum B. Pitzer 1998-2-1 3434 Riverside Hayfield Spring Quad 7.5': Hayfield Dry Lake, alluvial fan on N side of lakebed, from paved road lakebed. 427 Comment
  UCR117375  Trichoptilium incisum B. G. Pitzer 1998-2-1 3434 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 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
  CLARK-A1528-2132  Trixis californica John C. Roos 1947-2-15 3251 Riverside Eagle Mountains Comment
  RSA171050  Trixis californica R. F. Thorne 1963-3-29 32431 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 533 Comment
  RSA643329  Trixis californica R. D. Goeden, D. W. Ricker 1971-4-1 s.n. Riverside Sonoran Desert: Chuckwalla Mountains at Granite Well, SW of Desert Center, 0.4 mi. past sign saing ''Edmund C. Jaeger Nature Sanctuary'' in bottom of canyon at old road crossing. 366 Comment
  UCR101573  Trixis californica Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  JOTR29451  Trixis californica var. californica La Doux, Tasha, Mike Bell 2006-3-8 1349 Riverside Joshua Tree National Park. Eagle Mountains, south of Hayfield Spring 548 Comment
  JOTR29452  Trixis californica var. californica La Doux, Tasha, Mike Bell 2006-3-8 1349 Riverside Joshua Tree National Park. Eagle Mountains, south of Hayfield Spring 548 Comment
  JOTR36009  Trixis californica var. californica Harding, Mitzi, T. Herskovits 2012-3-16 217 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  UCR101574  Viguiera parishii Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  SBBG8573  Xylorhiza tortifolia var. tortifolia H. and M. Dearing 1937-4-10 2496 Riverside Chuckwalla Mtns, near Hayfield 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



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