32.72722 32.82722 -114.80417 -114.70417 UC/JEPS: Consortium Search Results
Search Results — 367 specimen records retrieved (367 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/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC229303  Abronia villosa G. H. Mallory 1920-5-12 s.n. Imperial 5 mi south of Ogilby Station by R.R. track in Arroyo Comment
  CDA19630  Abronia villosa J. Chesi 1998-2-26 s.n. Imperial Winterhaven Agricultural Inspection Station 0 Comment
  SEINET893729  Abronia villosa Steven P. MacLaughlin, Janice E. Bowers 1985-1 2945 Imperial Jct. of frontage road and Sidewinder Road. 91 Comment
  UCR103360  Abronia villosa George K. Helmkamp, E. Helmkamp 1998-1-24 2590 Imperial Sonoran (Colorado) Desert, Along Hwy US-186, 1.6 mi. NE of the Mexican Border & Andrade. 61 Comment
  UCR163740  Abronia villosa B. G. Pitzer, G. R. Ballmer 2001-3-17 4273 Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  RSA0024965  Abronia villosa var. villosa Jim Andre 2013-3-3 23981 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  UCR120507  Abronia villosa var. villosa George K. Helmkamp, E. A. Helmkamp 2001-3-17 6272 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  JEPS101832  Acacia greggii Dean W. Taylor 1998-5-12 16390 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
  RSA423478  Achyronychia cooperi Christopher Davidson 1979-4-28 7775 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  SD143958  Achyronychia cooperi G. K. Helmkamp, E. Helmkamp 1998-1-24 2591 Imperial Along US Hwy 186, 1.6 miles northeast of the Mexican border and Andrade 60 Comment
  UCR120525  Achyronychia cooperi George K. Helmkamp, E. A. Helmkamp 2001-3-17 6275 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  RSA0029476  Acmispon strigosus Jim Andre 2013-3-4 24084 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  SD242809  Acmispon strigosus 1998-2-19 Imperial Jackson Gulch Comment
  RSA0029478  Aliciella latifolia subsp. latifolia J. Andre 2013-3-4 24086 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA645384  Allium praecox Steven A. Junak 1995-4-11 5947 Santa Barbara San Miguel Island: SE end of island, just S of Trinagulation Point ''Lamb''. 76 Comment
  CAS-BOT-BC22396  Ambrosia dumosa George H. Mallory 1920-5-12 s.n. Imperial 5 mi south of Ogilby at side of R.R. track near arroyo Comment
  RSA0019556  Ambrosia dumosa J. Andre 2013-3-4 24071 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA416983  Ambrosia dumosa Christopher Davidson, Alan Romspert 1979-4-28 7784 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  UC472286  Ambrosia dumosa Joseph Grinnell 1910-5-10 San Bernardino near, (in dry sandy valleys, Colorado River) Pilot Knob; Colorado River Comment
Read comments
Jan 8 2013
  CAS-BOT-BC207116  Argythamnia lanceolata Steve Boyd 1986-2-6 1240 Imperial Large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road, Cargo Muchacho Mountains Comment
  CAS-BOT-BC137671  Aristida adscensionis Steve Boyd 1986-2-6 1239 Imperial Cargo Muchacho Mountains. Large canyon at southeast end of mountains, 5.4 miles northeast of I-8 off Sidewinder Road and Power-line Road. Comment
  CAS-BOT-BC137674  Aristida adscensionis G. H. Mallory 1920-5-12 s.n. Imperial 5 miles south of Ogilby Station at side of Track in arroyo. Comment
  UCR48450  Aristida adscensionis Steve Boyd 1986-2-6 1239 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA387415  Aristida adscensionis var. modesta Steve Boyd 1986-2-6 1239 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 mi. NE of Highway I-8 off Sidewinder Road and Power-line Road. Comment
  HSC82750  Asclepias subulata Christopher Davidson, A. P. Romspert, H. Surprenant 1979-4-28 7768 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 mi. NW of Pilot Knob 79 Comment
  JEPS101695  Asclepias subulata Dean W. Taylor 1998-5-12 16385 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
  RSA401108  Asclepias subulata Christopher Davidson 1979-4-28 7768 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  SD128698  Asclepias subulata Darley F. Howe 1980-4-13 Imperial 1 mile west of agricultural inspection station on Highway 8 Comment
  SBBG22842  Astragalus crotalariae D. Myrick 1965-2-26 1039 Imperial W of Yuma 45 Comment
  UCD104684  Astragalus crotalariae Donald Myrick 1965-2-26 1039 Imperial Desert west of Yuma. 45 Comment
  RSA253689  Astragalus magdalenae var. peirsonii Noel Holmgren, Patricia K. Holmgren 1973-3-28 6538 Imperial Along Interstate Hwy 8, 9 air miles west of Yuma. 121 Comment
  UC669210  Astragalus magdalenae var. peirsonii Annie M. Alexander and Louise Kellogg 1941-3-14 1937 Imperial w Yuma (Colorado Desert); , w of Yuma Comment
  UC669227  Astragalus magdalenae var. peirsonii Annie M. Alexander and Louise Kellogg 1941-3-14 1937 a Imperial w Yuma (Colorado Desert); , w of Yuma Comment
  SEINET898350  Astragalus nuttallianus Steven P. MacLaughlin, Janice E. Bowers 1985-1 2943 Imperial Jct. Sidewinder Rd. and I-8. 76 Comment
  RSA452367  Atriplex canescens L. H. Jones 1910-5-8 s.n. Imperial Colorado River near Pilot Knob Comment
  RSA452368  Atriplex canescens M. B. Dunkle 1935-4-18 s.n. Imperial W of Yuma 46 Comment
  SEINET288360  Atriplex linearis T. R. Van Devender, M. A. Dimmitt, J. J. Sanchez E. 2002-7-15 2002 -472 Unknown Ogilby Road, east side of Imperial (Algodones) Dunes, south of I.H. 8, west of Winterhaven, Imperial Sand Dunes Recreation Lands. Imperial County. 32 deg. 43'50 N, 114 deg. 45' W; 55 m.s.n.m. Comment
Read comments
Jan 7 2016
  CAS-BOT-BC99662  Baccharis salicifolia H. E. McMinn 1925-6-29 1468 Imperial Along the Col. River - 4 mi - N.W. of Yuma Comment
  POM350341  Baccharis salicifolia L. H. Jones 1910-5-9 s.n. Imperial Sandy second bottom, colorado River at Pilot Knob Comment
  UC469070  Baccharis salicifolia subsp. salicifolia Joseph Grinnell 1910-5-9 San Bernardino near Pilot Knob (Colorado River); Colorado River Comment
Read comments
Jan 8 2013
  UCR163737  Baileya pauciradiata B. G. Pitzer, G. R. Ballmer 2001-3-17 4269 B Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  JEPS101322  Baileya pleniradiata Dean W. Taylor 1998-5-12 16389 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
  RSA350677  Baileya pleniradiata L. H. Jones 1910-5-9 s.n. Imperial Sandy second bottom, colorado River at Pilot Knob Comment
  UC472192  Baileya pleniradiata Joseph Grinnell 1910-5-8 Imperial Colorado River, Pilot Knob Comment
  UCR120519  Baileya pleniradiata George K. Helmkamp, E. A. Helmkamp 2001-3-17 6276 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  UCR163743  Baileya pleniradiata B. G. Pitzer, G. R. Ballmer 2001-3-17 4269 Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  RSA0028909  Bebbia juncea var. aspera J. Andre 2013-3-4 24087 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  CAS-BOT-BC145593  Bouteloua aristidoides Steve Boyd 1986-2-6 1237 Imperial Cargo Muchacho Mountains. Large canyon at southeast end of mountains, 5.4 miles northeast of I-8 off Sidewinder Road and Power-line Road. Comment
  RSA387417  Bouteloua aristidoides Steve Boyd 1986-2-6 1237 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 mi. NE of Highway I-8 off Sidewinder Road and Power-line Road. Comment
  UCR48448  Bouteloua aristidoides Steve Boyd 1986-2-6 1237 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CDA31550  Bouteloua barbata J. Chesi 1988-10-17 Imperial Winterhaven border station 0 Comment
  HSC85354  Brandegea bigelovii Steve Boyd 1986-2-6 1242 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  RSA387413  Brandegea bigelovii Steve Boyd 1986-2-6 1242 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48419  Brandegea bigelovii Steve Boyd 1986-2-6 1242 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA0028912  Brassica tournefortii J. Andre 2013-3-4 24090 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  POM122926  Camissonia cardiophylla Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob. Comment
  RSA135550  Camissonia claviformis subsp. aurantiaca Peter H. Raven 1958-1-26 11495 Imperial 8.3 miles west of Winterhaven, 0.9 miles west of State Inspection Station. Comment
  RSA135551  Camissonia claviformis subsp. aurantiaca Peter H. Raven 1958-1-26 11495 Imperial 8.3 miles west of Winterhaven, 0.9 miles west of State Inspection Station. Comment
  CAS-BOT-BC40528  Caulanthus lasiophyllus Steve Boyd 1986-2-6 1241 Imperial Cargo Muchacho Mountains. Large Canyon at southeast end of mountains, 5.4 miles northeast of I-8 off Sidewinder Road Comment
  HSC85353  Caulanthus lasiophyllus Steve Boyd 1986-2-6 1241 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  SD256722  Caulanthus lasiophyllus J. M. Andre 2013-3-4 24077 Imperial Cargo Muchacho Mountains; SE side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles N of Jct Interstate 8. Araz 7.5'Q) 157 Comment
  UCR253877  Caulanthus lasiophyllus Jim Andre 2013-3-4 24077 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  UCR48452  Caulanthus lasiophyllus Steve Boyd 1986-2-6 1241 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC276307  Chaenactis carphoclinia G. H. Mallory 1920-5-12 s.n. Imperial 5 miles S of Ogilby Station by railroad track Comment
  CAS-BOT-BC276310  Chaenactis carphoclinia Steve Boyd 1986-2-6 1211 Imperial Cargo Muchacho Mountains: large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  OBI39250  Chaenactis carphoclinia A. C. Sanders & K. R. Neisess, K. R. Neisess 1985-4-22 5626 Imperial S of the Cargo Muchacho Mts, ca 2 mi N of Hwy I-8 on Sidewinder Rd 122 Comment
  SD242682  Chaenactis carphoclinia 1998-2-19 Imperial Jackson Gulch Comment
Read comments
Aug 27 2016
  SD242683  Chaenactis carphoclinia 1998-2-19 Imperial Jackson Gulch Comment
  HSC85334  Chaenactis carphoclinia var. carphoclinia Steve Boyd 1986-2-6 1211 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  RSA388045  Chaenactis carphoclinia var. carphoclinia Steve Boyd 1986-2-6 1211 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR40906  Chaenactis carphoclinia var. carphoclinia A. C. Sanders, K. R. Neisess 1985-4-22 5626 Imperial Sonoran (Colorado) Desert, alluvial fan south of Cargo Muchacho Mountains, 2 miles north of I-8 on Sidewinder Rd 105 Comment
  UCR48432  Chaenactis carphoclinia var. carphoclinia Steve Boyd 1986-2-6 1211 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CDA19625  Chamaesyce polycarpa J. Chesi 1998-2-26 s.n. Imperial Winterhaven Agricultural Inspection Station 0 Comment
  CDA35264  Chamaesyce polycarpa J. Chesi 1988-11-17 s.n. Imperial Winterhaven Border Station. 0 Comment
  HSC80367  Chamaesyce polycarpa R. F. Thorne 1977-11-26 50908 Imperial N of Pilot Knob near junction of Sidewinder Rd. and Hwy. 18, E of Pilot Knob campground 67 Comment
  RSA302362  Chamaesyce polycarpa R. F. Thorne 1977-11-26 50908 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  RSA432489A  Chamaesyce polycarpa var. hirtella Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7770 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  RSA432494A  Chamaesyce polycarpa var. hirtella Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7763 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  RSA387411  Chamaesyce setiloba Steve Boyd 1986-2-6 1244 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48435  Chenopodium murale Steve Boyd 1986-2-6 1219 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  HSC85336  Chorizanthe brevicornu var. brevicornu Steve Boyd 1986-2-6 1221 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  RSA0025259  Chorizanthe brevicornu var. brevicornu Jim Andre 2013-3-4 24079 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA388036  Chorizanthe brevicornu var. brevicornu Steve Boyd 1986-2-6 1221 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48423  Chorizanthe brevicornu var. brevicornu Steve Boyd 1986-2-6 1221 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA392650  Chorizanthe corrugata Christopher Davidson, A. Romspert, H. Surprenant 1979-4-28 7781 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  SD242929  Chorizanthe corrugata 1998-2-19 Imperial Jackson Gulch Comment
  RSA392743  Chorizanthe rigida Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7766 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  SD242932  Chorizanthe rigida 1998-2-19 Imperial Jackson Gulch Comment
  SD242884  Chylismia arenaria BLM 1998-2-19 607 Imperial Jackson Gulch Comment
  CAS-BOT-BC160583  Chylismia claviformis subsp. aurantiaca Peter H. Raven 1958-1-26 11493 Imperial On dunes 3.6 miles west of Winterhaven Comment
  CAS-BOT-BC160598  Chylismia claviformis subsp. aurantiaca G. H. Mallory 1920-5-12 s.n. Imperial 5 mi south of Ogilby Station by R.R. track Comment
  RSA0015916  Chylismia claviformis subsp. aurantiaca Jim Andre 2013-3-3 23986 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  RSA0021548  Chylismia claviformis subsp. aurantiaca Jim Andre 2013-3-4 24076 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  SD256763  Chylismia claviformis subsp. aurantiaca J. M. Andre 2013-3-4 24076 Imperial Cargo Muchacho Mountains; southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. (Araz 7.5'Q) 157 Comment
  UC1184428  Chylismia claviformis subsp. aurantiaca Peter H. Raven 1958-1-26 11495 Imperial 0.9 mi w State Inspection Station (8.3 mi w of Winterhaven) Comment
  UCR252834  Chylismia claviformis subsp. aurantiaca Jim Andre 2013-3-3 23986 Imperial Sonoran (Colorado) Desert, along frontage road at RR tracks, just N of Hwy I-8, just west of Winterhaven, c. 3 mi NW of Yuma, AZ 40 Comment
  SBBG35041  Croton californicus T. L. Secrest 1948-4-8 Imperial W of Yuma Comment
  POM126409  Croton californicus var. mohavensis Joseph Grinnell 1910-5-10 s.n. Imperial Colorado River near Pilot Knob. Comment
  RSA479344  Croton californicus var. tenuis L. H. Jones 1910-5-10 s.n. Imperial In sandy valley, Colorado River, near Piolot Knob. Comment
  HSC66466  Croton wigginsii Christopher Davidson, A. P. Romspert, H. Surprenant 1979-4-28 7767 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 mi. NW of Pilot Knob 79 Comment
  RSA480696  Croton wigginsii Christopher Davidson 1979-4-28 7767 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  SEINET286839  Croton wigginsii T. R. Van Devender, M. A. Dimmitt, J. J. Sanchez E. 2002-7-15 2002 -473 Unknown Ogilby Road, east side of Imperial (Algodones) Dunes, south of I.H. 8, west of Winterhaven, Imperial Sand Dunes Recreation Lands. Imperial County. 32 deg. 43'50 N, 114 deg. 45' W; 55 m.s.n.m. Comment
Read comments
Jan 7 2016
  POM368176  Cryptantha angustifolia Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7778 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  SD242748  Cryptantha angustifolia 1998-2-19 Imperial Jackson Gulch Comment
  SD242750  Cryptantha angustifolia 1998-2-19 Imperial Jackson Gulch Comment
  SD256711  Cryptantha angustifolia J. M. Andre 2013-3-4 24080 Imperial Cargo Muchacho Mountains; SE side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles N of Jct Interstate 8. Araz 7.5'Q) 157 Comment
  UCR120523  Cryptantha angustifolia George K. Helmkamp, E. A. Helmkamp 2001-3-17 6273 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  RSA388046  Cryptantha barbigera Steve Boyd 1986-2-6 1210 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  SD125168  Cryptantha barbigera Steven P. McLaughlin, Janice E. Bowers 1985-3-9 2937 Imperial Sandy flats, near east end of Ogilby Hills. 121 Comment
  UCR48433  Cryptantha barbigera Steve Boyd 1986-2-6 1210 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  SD256712  Cryptantha barbigera var. barbigera J. M. Andre 2013-3-4 24075 Imperial Cargo Muchacho Mountains; SE side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles N of Jct Interstate 8. Araz 7.5'Q) 157 Comment
  UCR253878  Cryptantha barbigera var. barbigera Jim Andre 2013-3-4 24075 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  CAS-BOT-BC218751  Cryptantha holoptera Steve Boyd 1986-2-6 1232 Imperial CARGO MUCHACHO MOUNTAINS: Large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  CAS-BOT-BC218798  Cryptantha holoptera Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob Comment
  SD242752  Cryptantha holoptera 1998-2-19 Imperial Jackson Gulch Comment
  UCR48444  Cryptantha holoptera Steve Boyd 1986-2-6 1232 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  HSC85356  Cryptantha maritima Steve Boyd 1986-2-6 1245 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  RSA387410  Cryptantha maritima Steve Boyd 1986-2-6 1245 Imperial Cargo Muchacho Mountains; Bajada E of the Mts, Powerline Road 5.4 mi W of Piccho Road Comment
  SD258357  Cryptantha maritima J. M. Andre 2013-3-3 23984 Imperial Yuma West; along frontage rd at RR tracks, just N of I-8, just west of Winterhaven, approx 3 mi NW of Yuma AZ 39 Comment
  UCR48454  Cryptantha maritima Steve Boyd 1986-2-6 1245 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CDA19626  Cryptantha racemosa J. Chesi 1998-2-26 s.n. Imperial Winterhaven Agricultural Inspection Station 0 Comment
  POM128297  Cucurbita palmata Joseph Grinnell 1910-5-8 s.n. Imperial Pilot Knob, Colorado River. Comment
  RSA394339  Cucurbita palmata L. H. Jones 1910-9-8 s.n. Imperial Pilot Knob at Colorado River. Comment
  UC1735829  Cynodon dactylon Dean W. Taylor 1998-5-12 16384 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
  RSA302358  Dalea mollis R. F. Thorne 1977-11-26 50912 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  RSA0018682  Dalea mollissima Jim Andre 2013-3-4 24064 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  RSA404192  Dalea mollissima Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7782 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  SD256740  Dalea mollissima J. M. Andre 2013-3-4 24064 Imperial Cargo Muchacho Mountains; southeast side of range, ca. 12 miles NW of Yuma just west of Barney Oldfield Rd, 5.0 miles north of Jct I-8. 157 Comment
  SD242960  Diplacus bigelovii var. bigelovii 1998-3-18 Imperial Jackson Gulch Comment
  HSC85345  Ditaxis lanceolata Steve Boyd 1986-2-6 1240 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  RSA0025262  Ditaxis lanceolata J. Andre 2013-3-4 24065 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  RSA388022  Ditaxis lanceolata Steve Boyd 1986-2-6 1240 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  SD242796  Ditaxis lanceolata 1998-2-19 Imperial Jackson Gulch Comment
  SEINET5766030 Image available Ditaxis lanceolata J. M. Andre 2013-3-4 24065 Imperial Cargo Muchacho Mountains; southeast side of range , approx. 12 mi. NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi. north of Jct Interstate 8. 7.5 Quad: Araz. Comment
  UCR253881  Ditaxis lanceolata Jim Andre 2013-3-4 24065 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  UCR48451  Ditaxis lanceolata Steve Boyd 1986-2-6 1240 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA0025263  Ditaxis neomexicana J. Andre 2013-3-4 24066 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  UCR253880  Ditaxis neomexicana Jim Andre 2013-3-4 24066 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  CDA35291  Ditaxis serrata Jack Troutwine 1992-7-14 Imperial Desert range west of Winterhaven. 0 Comment
  RSA421626  Ditaxis serrata Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7762 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  RSA421627  Ditaxis serrata Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7779 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  UCR120524  Dithyrea californica George K. Helmkamp, E. A. Helmkamp 2001-3-17 6274 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  UCR163739  Dithyrea californica B. G. Pitzer, G. R. Ballmer 2001-3-17 4272 Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  CAS-BOT-BC131287  Encelia farinosa Steve Boyd 1986-2-6 1227 Imperial Cargo Muchacho Mts., canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  HSC85339  Encelia farinosa Steve Boyd 1986-2-6 1227 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  UCR48440  Encelia farinosa Steve Boyd 1986-2-6 1227 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  POM121852  Encelia farinosa var. farinosa Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob. Comment
  RSA388032  Encelia farinosa var. farinosa Steve Boyd 1986-2-6 1227 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  CAS-BOT-BC131405  Encelia frutescens Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob Comment
  HSC66474  Encelia frutescens A. P. Romspert, Harvey Surprenant 1979-4-28 7788 Imperial off Interstate 8 on the Sidewinder Rd. ca. 1.5 mi. NW of Pilot Knob 79 Comment
  POM121848  Encelia frutescens Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob. Comment
  POM356712  Encelia frutescens Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7788 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  SD125216  Encelia frutescens var. frutescens Steven P. McLaughlin, Janice E. Bowers 1985-3-10 2940 Imperial Sidewinder Road, 2.2 miles north of I-8 74 Comment
  GMDRC5768  Ephedra trifurca J. M. Andre 2013-3-3 23985 Imperial along frontage rd at RR tracks, just N. of I-8, just west of Winterhaven, approx 3 mi. NW of Yuma AZ 40 Comment
  JEPS89198  Ephedra trifurca Herbert L. Mason 1957-3-31 14682 Imperial near Yuma (desert w of sand hills) Comment
  RSA0015665  Ephedra trifurca J. Andre 2013-3-3 23985 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  UC1093646  Ephedra trifurca Herbert L. Mason 1957-3-31 14683 Imperial near Yuma (desert w of the sand hills) Comment
  UC1093647  Ephedra trifurca Herbert L. Mason 1957-3-31 14682 Imperial near Yuma (desrt w of the sand hills) Comment
  UCR252835  Ephedra trifurca Jim Andre 2013-3-3 23985 Imperial Sonoran (Colorado) Desert, along frontage road at RR tracks, just N of Hwy I-8, just west of Winterhaven, c. 3 mi NW of Yuma, AZ 40 Comment
  CAS-BOT-BC160024  Eremothera boothii subsp. condensata G. H. Mallory 1920-5-12 s.n. Imperial 5 mi south of Ogilby Station by R.R. track Comment
  RSA0025264  Eremothera boothii subsp. condensata Jim Andre 2013-3-4 24068 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  RSA302363  Eriogonum deflexum var. deflexum Robert F. Thorne 1977-11-26 50907 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  RSA393282  Eriogonum deflexum var. deflexum Christopher Davidson, A. Romspert, H. Surprenant 1979-4-28 7774 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  JEPS56262  Eriogonum thomasii W. L. Jepson 1927-4-16 11744 Imperial sand hills near Pilot Knob Comment
  RSA0027765  Eriogonum thomasii Jim Andre 2013-3-4 24093 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA424945  Eriogonum thomasii Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7776 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  SD242935  Eriogonum thomasii Stephen Larson Feb 1998 Imperial Jackson Gulch Comment
  GMDRC5767  Eschscholzia minutiflora J. M. Andre 2013-3-3 23983 Imperial along frontage rd at RR tracks, just N. of I-8, just west of Winterhaven, approx 3 mi. NW of Yuma AZ 40 Comment
  RSA0015940  Eschscholzia minutiflora Jim Andre 2013-3-3 23983 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  RSA0025257  Eschscholzia minutiflora Jim Andre 2013-3-4 24074 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA395948  Eschscholzia minutiflora Steve Boyd 1986-2-6 1246 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  SBBG87720  Eschscholzia minutiflora S. Boyd 1986-2-6 1246 Imperial large cyn at SE end of Cargo Muchacho Mts, 5.4 mi NE of I-8 off Sidewinder Rd and Powerline Rd Comment
  SEINET5574653  Eschscholzia minutiflora Steven P. McLaughlin 1998-1 7396 Imperial Along Sidewinder Road south of Cargo Muchacho Mountains, sandy soil with Olneya tesota, Larrea tridentata, Encelia farinosa. 220 Comment
  UCR120522  Eschscholzia minutiflora George K. Helmkamp, E. A. Helmkamp 2001-3-17 6279 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  UCR252833  Eschscholzia minutiflora Jim Andre 2013-3-3 23983 Imperial Sonoran (Colorado) Desert, along frontage road at RR tracks, just N of Hwy I-8, just west of Winterhaven, c. 3 mi NW of Yuma, AZ 40 Comment
  UCR253879  Eschscholzia minutiflora Jim Andre 2013-3-4 24074 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  HSC85341  Eucrypta micrantha Steve Boyd 1986-2-6 1230 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  RSA388029  Eucrypta micrantha Steve Boyd 1986-2-6 1230 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48422  Eucrypta micrantha Steve Boyd 1986-2-6 1230 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  SD242790  Euphorbia setiloba 1998-2-19 Imperial Jackson Gulch Comment
  UCR48455  Euphorbia setiloba Steve Boyd 1986-2-6 1244 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC167343  Fagonia laevis Steve Boyd 1986-2-6 1228 Imperial Cargo Muchacho Mts.; large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  CAS-BOT-BC167347  Fagonia laevis Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob Comment
  CAS-BOT-BC167351  Fagonia laevis Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob Comment
  CAS-BOT-BC167362  Fagonia laevis Marcus E. Jones 1926-1-22 s.n. Imperial PIlot Knob Comment
  GMDRC5783  Fagonia laevis J. M. Andre 2013-3-4 24069 Imperial Cargo Muchacho Mountains;: southeast side of range, approx. 12 mi. NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi. north of Jct Interstate 8 158 Comment
  JEPS101694  Fagonia laevis Dean W. Taylor 1998-5-12 16387 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
  POM122665  Fagonia laevis Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob. Comment
  RSA0019554  Fagonia laevis Jim Andre 2013-3-4 24069 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA388031  Fagonia laevis Steve D. Boyd 1986-2-6 1228 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  SD242990  Fagonia laevis 1998-2-19 Imperial Jackson Gulch Comment
  UCR253883  Fagonia laevis Jim Andre 2013-3-4 24069 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  UCR48420  Fagonia laevis Steve Boyd 1986-2-6 1228 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA289735  Fouquieria splendens Lyman Benson 1933-4-1 4219 Imperial US 80, 5 mile W of Fort Yuma, Yuma Desert 30 Comment
  RSA0025265  Fouquieria splendens subsp. splendens Jim Andre 2013-3-4 24072 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  CAS-BOT-BC303543  Geraea canescens G. H. Mallory 1920-5-12 s.n. Imperial 5 miles S of Ogilby Station by RR track near arroyo Comment
  CDA19627  Geraea canescens J. Chesi 1998-2-26 s.n. Imperial Winterhaven Agricultural Inspection Station 0 Comment
  POM358649  Geraea canescens Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7769 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  UCR252832  Geraea canescens Jim Andre 2013-3-3 23980 Imperial Sonoran (Colorado) Desert, along frontage road at RR tracks, just N of Hwy I-8, just west of Winterhaven, c. 3 mi NW of Yuma, AZ 40 Comment
  RSA0019641  Guillenia lasiophylla J. Andre 2013-3-4 24077 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA387414  Guillenia lasiophylla Steve Boyd 1986-2-6 1241 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  CAS-BOT-BC203345  Hibiscus denudatus Steve Boyd 1986-2-6 1234 Imperial Cargo Muchacho Mountains: Large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  HSC85343  Hibiscus denudatus Steve Boyd 1986-2-6 1234 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  RSA388025  Hibiscus denudatus Steve Boyd 1986-2-6 1234 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48445  Hibiscus denudatus Steve Boyd 1986-2-6 1234 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  HSC66475  Hilaria rigida Christopher Davidson, A. P. Romspert, Harvey Surprenant 1979-4-28 7785 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 mi. NW of Pilot Knob 79 Comment
  SD144115  Hilaria rigida G. K. Helmkamp, E. Helmkamp 1998-1-24 Imperial Gravel Rd S of Hwy I-8. Rocky hills at W edge of Fort Yuma Indian Reservation 60 Comment
  RSA0028911  Hyptis emoryi Jim Andre 2013-3-4 24089 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  UCR253872  Hyptis emoryi Jim Andre 2013-3-4 24089 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  HSC66563  Krameria erecta Christopher Davidson, A. P. Romspert, H. Surprenant 1979-4-28 7789 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 mi. NW of Pilot Knob 79 Comment
  RSA302360  Krameria erecta Robert F. Thorne 1977-11-26 50910 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  RSA409436  Krameria erecta Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7789 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  JEPS101831  Krameria grayi Dean W. Taylor 1998-5-12 16395 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
  UCR120521  Langloisia setosissima subsp. setosissima George K. Helmkamp, E. A. Helmkamp 2001-3-17 6278 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  CAS-BOT-BC171067  Larrea tridentata Steve Boyd 1986-2-6 1235 Imperial Large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road - Cargo Muchacho Mountains Comment
  HSC85344  Larrea tridentata Steve Boyd 1986-2-6 1235 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  RSA0028914  Larrea tridentata Jim Andre 2013-3-4 24081 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  RSA387419  Larrea tridentata Steve D. Boyd 1986-2-6 1235 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  SD242994  Larrea tridentata 1998-2-19 Imperial Jackson Gulch Comment
  UCR48446  Larrea tridentata Steve Boyd 1986-2-6 1235 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC89547  Lepidium lasiocarpum Steve Boyd 1986-2-6 1229 Imperial Cargo Muchacho Mountains. Large canyon at southeast end of mountains. Comment
  HSC85340  Lepidium lasiocarpum Steve Boyd 1986-2-6 1229 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  RSA388030  Lepidium lasiocarpum Steve Boyd 1986-2-6 1229 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48441  Lepidium lasiocarpum Steve Boyd 1986-2-6 1229 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  UCR253876  Lepidium lasiocarpum subsp. lasiocarpum Jim Andre 2013-3-4 24078 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  RSA0025258  Lepidium lasiocarpum var. lasiocarpum J. Andre 2013-3-4 24078 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA0028913  Linanthus jonesii J. Andre 2013-3-4 24092 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA388043  Linanthus jonesii Steve Boyd 1986-2-6 1213 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48424  Linanthus jonesii Steve Boyd 1986-2-6 1213 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC271060  Lolium temulentum G. H. Mallory 1920-5-12 s.n. Imperial 5 mi. south of Ogilby Station at side of R.R. track in arroyo Comment
  RSA388035  Lotus strigosus Steve Boyd 1986-2-6 1222 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 mi. NE of Highway I-8 off Sidewinder Road and Power-line Road. Comment
  RSA406381  Lotus strigosus Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7777 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  HSC85337  Lotus strigosus var. tomentellus Steve Boyd 1986-2-6 1222 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  UCR48437  Lotus tomentellus Steve Boyd 1986-2-6 1222 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA388028  Lupinus arizonicus Steve Boyd 1986-2-6 1231 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48443  Lupinus arizonicus Steve Boyd 1986-2-6 1231 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  SEINET4035761  Lupinus concinnus P. J. Knight 1979-1 630 Imperial Highway 8, 5 miles west of Yuma. Comment
  GMDRC5784  Lycium andersonii J. M. Andre 2013-3-4 24070 Imperial Cargo Muchacho Mountains;: southeast side of range, approx. 12 mi. NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi. north of Jct Interstate 8 158 Comment
  RSA0019555  Lycium andersonii Jim Andre 2013-3-4 24070 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  SD242975  Lycium andersonii 1998-2-19 Imperial Jackson Gulch Comment
  UCR253882  Lycium andersonii Jim Andre 2013-3-4 24070 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  SD125187  Lycium torreyi Steven P. McLaughlin, Janice E. Bowers 1985-3-10 2952 Imperial 1.0 mile northeast of Andrade, along Colorado River. (IPB 10/07) 45 Comment
  POM362090  Machaeranthera tephrodes M. B. Dunkle 1935-4-18 4578 Imperial W of Yuma 46 Comment
  RSA433874  Malvella leprosa L. H. Jones 1910-5-11 s.n. Imperial second bottom on sandy slope, Colorado River near Pilot Knob Comment
  SD125141  Mentzelia desertorum Steven P. McLaughlin, Janice E. Bowers 1985-3-10 2938 Imperial Sidewinder Road, 3.8 miles north of I-8. 121 Comment
  RSA395950  Mentzelia involucrata Steve Boyd 1986-2-6 1214 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR253875  Mentzelia involucrata Jim Andre 2013-3-4 24083 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  CDA19628  Mentzelia longiloba J. Chesi 1998-2-26 s.n. Imperial Winterhaven Agricultural Inspection Station. 0 Comment
Read comments
Jan 24 2008
  JEPS26719  Mentzelia longiloba Joseph Grinnell 1910-5-8 Imperial Pilot Knob, Colorado River. Comment
  SEINET889858  Mentzelia longiloba Steven P. MacLaughlin, Janice E. Bowers 1985-1 2955 Imperial Along frontage rd. N of I-8, just W of Andrade exit 60 Comment
  UC195033  Mentzelia longiloba Joseph Grinnell 1910-5-8 Imperial Colorado River, Pilot Knob Comment
  SD125142  Mentzelia longiloba var. longiloba Steven P. McLaughlin, Janice E. Bowers 1985-3-10 2955 Imperial In sandy soil, along frontage road north of I-8, just west of Andrade exit. 60 Comment
  SEINET889860  Mentzelia longiloba var. longiloba Steven P. McLaughlin 1986-1 3136 Imperial along frontage road north of I-8 91 Comment
  UCR163744  Mentzelia longiloba var. longiloba B. G. Pitzer, G. R. Ballmer 2001-3-17 4268 Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  JEPS96886  Mesembryanthemum crystallinum Dean W. Taylor 1998-5-12 16386 Imperial vicinity of Felicity (ca 3 road miles E of Colorado River on Interstate 8), near the Pilot Knob Substation 85 Comment
Read comments
Oct 30 2007
  RSA387418  Mohavea confertiflora Steve D. Boyd 1986-2-6 1236 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  SD242965  Mohavea confertiflora 1998-2-19 Imperial Jackson Gulch Comment
  UCR48447  Mohavea confertiflora Steve Boyd 1986-2-6 1236 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC349740  Monoptilon bellioides Steve Boyd 1986-2-6 1223 Imperial Cargo Muchacho Mts.; large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  HSC85338  Monoptilon bellioides Steve Boyd 1986-2-6 1223 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  RSA388034  Monoptilon bellioides Steve Boyd 1986-2-6 1223 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48438  Monoptilon bellioides Steve Boyd 1986-2-6 1223 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC275316  Muhlenbergia microsperma Steve Boyd 1986-2-6 1233 Imperial Cargo Muchacho Mountains: Large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  HSC85342  Muhlenbergia microsperma Steve Boyd 1986-2-6 1233 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  RSA388026  Muhlenbergia microsperma Steve Boyd 1986-2-6 1233 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48442  Muhlenbergia microsperma Steve Boyd 1986-2-6 1233 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  SD242841  Nama demissa var. demissa 1998-2-19 Imperial Jackson Gulch Comment
  UCR121153  Nama hispida George K. Helmkamp, E. A. Helmkamp 2001-3-17 6270 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  JEPS2656 Image available Nama hispida var. revoluta Jos. Grinnell 1910-5-8 Imperial Pilot Knob Colorado River; Pilot Knob, Colorado River Comment
  RSA388041  Nama hispida var. revoluta Steve Boyd 1986-2-6 1216 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  RSA421160  Nama hispida var. revoluta L. H. Jones 1910-5-8 s.n. Imperial Colorado River near Pilot Knob Comment
  UC196599  Nama hispida var. spathulata Joseph Grinnell 1910-5-8 Imperial Colorado River at Pilot Knob Pilot Knob; Colorado River Comment
  RSA144658  Oenothera deltoides subsp. deltoides Peter H. Raven 1958-1-26 11509 Imperial 8.3 miles west of Winterhaven, 0.9 miles west of State Inspection Station. Comment
  CAS-BOT-BC427428  Oligomeris linifolia G. H. Mallory 1920-5-12 s.n. Imperial 5 mi south of Ogilby at side of R.R. track Comment
  SEINET3074405 Image available Oligomeris linifolia Norman C. Cooper 1949-3-15 3038 Imperial West of Yuma. 240 Comment
  HSC82948  Olneya tesota A. C. Sanders, K. R. Neisess 1985-4-22 5625 Imperial S of Cargo Muchacho Mts., 2 mi N of I-8 on Sidewinder Rd 122 Comment
  OBI39249  Olneya tesota A. C. Sanders & K. R. Neisess, K. R. Neisess 1985-4-22 5625 Imperial S of the Cargo Muchacho Mts, ca. 2 mi N of Hwy I-8 on Sidewinder rd 122 Comment
  UCR40905  Olneya tesota A. C. Sanders, K. R. Neisess 1985-4-22 5625 Imperial Sonoran (Colorado) Desert, alluvial fan south of Cargo Muchacho Mountains, 2 miles north of I-8 on Sidewinder Rd 105 Comment
  HSC87266  Orobanche cooperi Steve Boyd 1986-2-6 1226 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  CAS-BOT-BC327876  Palafoxia arida Annie M. Alexander; Louise Kellogg 1941-3-3 1889 Imperial Colorado Desert. 6 miles W of Winterhaven, Yuma road Comment
  CAS-BOT-BC327883  Palafoxia arida G. H. Mallory 1920-5-12 s.n. Imperial 5 mi S of Ogilby Station at side of R.R. track Comment
  CDA8437  Palafoxia arida A. C. Browne 1951-10-21 Imperial 2 miles east of Ogilby. 0 Comment
  RSA0028918  Palafoxia arida var. arida J. Andre 2013-3-3 23979 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  RSA302357  Palafoxia arida var. arida R. F. Thorne 1977-11-26 50913 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  RSA363729  Palafoxia arida var. arida Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7786 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  SD256698  Palafoxia arida var. arida J. M. Andre 2013-3-3 23979 Imperial Along frontage road at RR tracks, just N of I-8, just W of Winterhaven, approx 3 miles NW of Yuma AZ. Yuma West 7.5'Q) 39 Comment
  UC1531099  Palafoxia arida var. arida Robert F. Thorne et al. 1977-11-26 50913 Imperial n Pilot Knob (neat junction of Sidewinder Rd. and Hwy I-8, e of Pilot Knob Camprground); Colorado Desert 67 Comment
  UCR120531  Palafoxia arida var. arida George K. Helmkamp, E. A. Helmkamp 2001-3-17 6271 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  UCR163742  Palafoxia arida var. arida B. G. Pitzer, G. R. Ballmer 2001-3-17 4270 Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  UCR253338  Palafoxia arida var. arida Jim Andre 2013-3-3 23979 Imperial Sonoran (Colorado) Desert, along frontage road at RR tracks, just N of Hwy I-8, just west of Winterhaven, c. 3 mi NW of Yuma, AZ 40 Comment
  GH427283  Palafoxia arida var. gigantea A. M. Alexander & L. Kellogg 1941-3-3 1889 Unknown 6 miles west of Winterhaven, Yuma Road Comment
  UC1746487  Palafoxia arida var. gigantea J. Latting 1977-12-11 Imperial E side of Algodones Sand Dunes; Sonoran desert, Pilot Knob Mesa 69 Comment
  UC669219  Palafoxia arida var. gigantea Annie M. Alexander and Louise Kellogg 1941-3-3 1889 Imperial Yuma road 6 mi w Winterhaven; Colorado Desert Comment
  CAS-BOT-BC355926  Perityle emoryi Steve Boyd 1986-2-6 1243 Imperial Cargo Muchacho Mountains: Large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  HSC85355  Perityle emoryi Steve Boyd 1986-2-6 1243 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  RSA387412  Perityle emoryi Steve Boyd 1986-2-6 1243 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48453  Perityle emoryi Steve Boyd 1986-2-6 1243 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CAS-BOT-BC167691  Petalonyx linearis Peter H. Raven 1958-5-6 12909 Imperial 3.6 miles west of Winterhaven on United States Highway 80 Comment
  CAS-BOT-BC167730  Petalonyx thurberi H. E. McMinn 1925-6-29 1453 Imperial 4 mi. N.W. of Yuma, Ariz along highway Comment
  RSA161397  Petalonyx thurberi H. E. McMinn 1925-6-29 1453 Imperial 4 miles NW of Yuma, Imperial County Comment
  RSA445153  Petalonyx thurberi L. H. Jones 1910-5-10 s.n. Imperial In sandy valley, Colorado River, near Piolot Knob. Comment
  LA80915  Petalonyx thurberi subsp. thurberi Peter H. Raven; 1958-5-8 12909 Imperial 3.6 mi. W of Winterhaven on US Highway 80 Comment
  UC196587  Petalonyx thurberi subsp. thurberi Joseph Grinnell 1910-5-10 San Bernardino Colorado R. near Pilot Knob; Colorado R. Comment
Read comments
Jan 8 2013
  RSA388039  Phacelia ambigua Steve Boyd 1986-2-6 1218 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  UCR48434  Phacelia crenulata Steve Boyd 1986-2-6 1218 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA0015917  Phacelia crenulata var. ambigua Jim Andre 2013-3-3 23987 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  RSA0028910  Phacelia crenulata var. ambigua Jim Andre 2013-3-4 24088 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  SD143848  Phacelia crenulata var. ambigua G. K. Helmkamp, E. Helmkamp 1998-1-24 2593 Imperial Gravel road south of Highway I-8; rocky hills at west edge of Fort Yuma Indian Reservation. 60 Comment
  SD242844  Phacelia crenulata var. ambigua 1998-2-19 Imperial Jackson Gulch Comment
  UCR120520  Phacelia crenulata var. ambigua George K. Helmkamp, E. A. Helmkamp 2001-3-17 6277 Imperial Colorado Desert., Small canyon parallel to and south of I-8, 2.1 mi east of Sidewinder Rd. 76 Comment
  UCR253873  Phacelia crenulata var. ambigua Jim Andre 2013-3-4 24088 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  GMDRC5785  Phacelia crenulata var. minutiflora J. M. Andre 2013-3-4 24082 Imperial Cargo Muchacho Mountains;: southeast side of range, approx. 12 mi. NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi. north of Jct Interstate 8 158 Comment
  RSA0028915  Phacelia crenulata var. minutiflora Jim Andre 2013-3-4 24082 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  UCR253874  Phacelia crenulata var. minutiflora Jim Andre 2013-3-4 24082 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  SBBG59874  Pholisma sonorae M. F. Gilman 1928-4-15 Imperial W of Yuma Comment
  RSA0021544  Phoradendron californicum Jim Andre 2013-3-4 24091 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  SD256790  Phoradendron californicum J. M. Andre 2013-3-4 24091 Imperial Cargo Muchacho Mountains; southeast side of range, ca. 12 miles NW of Yuma, just west of Barney Oldfield RD, 5.0 miles north of Jct I-8. 157 Comment
  CDA19629  Plantago ovata J. Chesi 1998-2-26 s.n. Imperial Winterhaven Agricultural Inspection Station 0 Comment
  UCR163741  Plantago ovata B. G. Pitzer, G. R. Ballmer 2001-3-17 4271 Imperial Sonoran (Colorado) Desert, Algodonnes Dunes, south of end of Ogilby Rd. on south side of I-8 88 Comment
  UCR48431  Plantago ovata Steve Boyd 1986-2-6 1212 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA0021550  Plantago ovata var. fastigiata Jim Andre 2013-3-4 24067 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  RSA388044  Plantago ovata var. fastigiata Steve Boyd 1986-2-6 1212 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  RSA402281  Plantago ovata var. fastigiata Christopher Davidson, A. Romspert, H Surprenant 1979-4-28 7780 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  SD242914  Plantago ovata var. fastigiata 1998-2-19 Imperial Jackson Gulch Comment
  SD256770  Plantago ovata var. fastigiata J. M. Andre 2013-3-4 24067 Imperial Cargo Muchacho Mountains; southeast side of range, approx 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 mile north of junction Interstae 8. (Araz 7.5'Q) 157 Comment
  RSA414082  Pleuraphis rigida Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7785 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  RSA472119  Pluchea sericea L. H. Jones 1910-5-8 s.n. Imperial Colorado River near Pilot Knob Comment
  RSA472121  Pluchea sericea M. B. Dunkle 1935-4-18 4576 Imperial river Bottom, W of Yuma 46 Comment
  RSA0019642  Porophyllum gracile J. Andre 2013-3-4 24063 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 mi NW of Yuma, just west of Barney Oldfield Rd, 5.0 mi north of Jct Interstate 8. 158 Comment
  SD256702  Porophyllum gracile J. M. Andre 2013-3-4 24063 Imperial Cargo Muchacho Mountains; southeast side of range, approx 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles N of Jct Interstate 8 (Araz 7.5'Q) 157 Comment
  RSA0013890  Proboscidea althaeifolia Robert F. Thorne 1977-11-26 50914 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  POM348729  Prosopis glandulosa var. torreyana M. B. Dunkle 1935-4-18 4577 Imperial W of Yuma 46 Comment
  CAS-BOT-BC356314  Psathyrotes ramosissima Steve Boyd 1986-2-6 1251 Imperial Cargo Muchacho Mts: Bajada E of the Mts., Powerline Road 5.4 mi W of Picacho Rd Comment
  RSA387408  Psathyrotes ramosissima Steve Boyd 1986-2-6 1251 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  RSA0024966  Psorothamnus emoryi Jim Andre 2013-3-3 23982 Imperial Along Frontage Rd. at RR tracks, just N of I-8, just west of Winterhaven, approx. 3 miles NW of Yuma, AZ. 40 Comment
  UC669208  Psorothamnus emoryi Annie M. Alexander and Louise Kellogg 1941-3-13 1932 Imperial w Yuma; w of Yuma Comment
  UCR252836  Psorothamnus emoryi Jim Andre 2013-3-3 23982 Imperial Sonoran (Colorado) Desert, along frontage road at RR tracks, just N of Hwy I-8, just west of Winterhaven, c. 3 mi NW of Yuma, AZ 40 Comment
  CAS-BOT-BC340944  Psorothamnus spinosus H. E. McMinn 1925-6-29 1456 Imperial 4 mi. N.W. Yuma, Ariz., Col. Desert Comment
  UCR48449  Schismus arabicus Steve Boyd 1986-2-6 1238 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  UC57360  Sesbania herbacea William H. Holabird 1903-1 Imperial below Yuma Comment
  RSA447301  Sphaeralcea M. B. Dunkle 1935-4-18 4580 Imperial W of Yuma 46 Comment
  HSC85335  Sphaeralcea ambigua Steve Boyd 1986-2-6 1220 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of I-8 off Sidewinder Rd. and Power-line Rd. Comment
  LA206033  Sphaeralcea ambigua F. R. Fosberg; 1932-4-9 7764 Imperial W of Colorado River, across from Yuma, Arizona Comment
  RSA388037  Sphaeralcea ambigua Steve Boyd 1986-2-6 1220 Imperial Cargo Muchacho Mts.; large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road Comment
  UCR48436  Sphaeralcea ambigua Steve Boyd 1986-2-6 1220 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  RSA396147  Sphaeralcea ambigua subsp. rosacea Steve Boyd 1986-2-6 1225 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 mi. NE of Highway I-8 off Sidewinder Road and Power-line Road. Comment
  UCD116809  Sphaeralcea ambigua var. rosacea Steve Boyd 1986-2-6 1225 Imperial Imperial County; Cargo Muchacho Mt.; large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Road and Power-line Road. Comment
  SBBG35067  Sphaeralcea emoryi T. L. Secrest 1948-4-8 Imperial near Yuma Comment
  LA205958  Sphaeralcea orcuttii F. R. Fosberg; 1932-4-9 7763 Imperial W of Colorado River, across from Yuma, Arizona Comment
  HSC82898  Stillingia spinulosa Christopher Davidson, A. P. Romspert, H. Surprenant 1979-4-28 7771 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 mi. NW of Pilot Knob 79 Comment
  RSA457878  Stillingia spinulosa Alan Romspert, H. Surprenant 1979-4-28 7771 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob. 79 Comment
  CDA23826  Tidestromia oblongifolia A. C. Browne 1951-10-21 Imperial 2 miles east of Ogilby. 0 Comment
  RSA302355  Tidestromia oblongifolia R. F. Thorne, et al. 1977-11-26 50915 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  HSC80357  Tidestromia suffruticosa var. oblongifolia R. F. Thorne 1977-11-26 50915 Imperial N of Pilot Knob near junction of Sidewinder Rd. and Hwy. 18, E of Pilot Knob campground 67 Comment
  OBI37636  Tidestromia suffruticosa var. oblongifolia Robert F. Thorne 1977-11-26 50915 Imperial Colorado Desert: N of Pilot Knob near jctn of Sidewinder Rd and hwy 18, E of Pilot Knob Campground 67 Comment
  HSC66554  Tiquilia palmeri Christopher Davidson, A. P. Romspert, H. Surprenant 1979-4-28 7783 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 mi. NW of Pilot Knob 79 Comment
  POM122925  Tiquilia palmeri Marcus E. Jones 1926-1-22 s.n. Imperial Pilot Knob. Comment
  POM368521  Tiquilia palmeri Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7783 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  RSA302361  Tiquilia palmeri R. F. Thorne 1977-11-26 50909 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  SD125174  Tiquilia palmeri Steven P. McLaughlin, Janice E. Bowers 1985-3-10 2956 Imperial North of I-8, west of Andrade Exit. Comment
  UCSB52636  Tiquilia palmeri Thorne, Robert 1977-11-26 Imperial Colorado Desert: North of Pilot Knob; near jct. of Sidewinder Rd. and Hwy. 18; east of Pilot Knob Campground 67 Comment
  POM368526  Tiquilia plicata Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-28 7764 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  RSA302359  Tribulus terrestris Robert F. Thorne 1977-11-26 50911 Imperial North of Pilot Knob near jct. of Sidewinder Rd. and hwy I-8, east of Pilot Knob campground. 67 Comment
  CAS-BOT-BC323076  Trixis californica Steve Boyd 1986-2-6 1224 Imperial 5.4 miles NE of I-8 off Sidewinder Road adn Power-line Road, Cargo Muchacho Mts. Comment
  HSC85928  Trixis californica Steve Boyd 1986-2-6 1224 Imperial Cargo Muchacho Mtns., large canyon at SE end of mountains, 5.4 mi. NE of Hwy. 8, off Sidewinder Rd. and Power-line Rd. Comment
  UCR48439  Trixis californica Steve Boyd 1986-2-6 1224 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of Interstate Hwy 8, off Sidewinder Road and powerline road 183 Comment
  CHSC69996  Trixis californica var. californica Steve Boyd 1986-2-6 1224 Imperial Cargo Muchacho Mts.; large canyon at SE end of mts, 5.4 mi NE of I-8 off Sidewinder Road and Powerline Road. Comment



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