Search Results — 430 specimen records retrieved (395 records with coordinates)
Results for search: Scientific name=Psorothamnus spinosus (including nomenclatural synonyms);   More information: Jepson Online Interchange

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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
  CLARK-A1528-2774  Dalea spinosa John C. Roos 1937-6-10 2016 Imperial Coyote Wells Comment
  CLARK-A1528-2775  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CLARK-A1528-2776  Dalea spinosa John C. Roos 1959-6-11 Imperial Coyote Wells Comment
  CLARK-A1528-472  Dalea spinosa Charlotte Stocks 1962-6-15 Riverside Indio Comment
  CLARK-A1528-473  Dalea spinosa D. Gordon 1952-3-5 Imperial Salton Sea 91 Comment
  CLARK-A1528-474  Dalea spinosa Edson Follett 1962-7-19 118 San Diego Canebrake Canyon Comment
  CLARK-A1528-4965  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CLARK-A1656-873  Dalea spinosa Jim Cornett 1977-6-24 Riverside Palm Springs 146 Comment
  CLARK-A1703-1204  Dalea spinosa Charlotte Stocks 1962-6-15 Riverside Indio Comment
  CSUSB2045  Dalea spinosa Daryl Faustini, Ned Curtis 1973-7-11 248 Riverside Joshua Tree National Monument 182 Comment
  RSA659792  Dalea spinosa J. C. Roos 1959-6-11 s.n. Imperial Coyote Wells. Comment
Read comments
Oct 9 2010
  RSA766929  Dalea spinosa M. L. Fulton 1986-3-9 ABD- 38 -86 San Diego Found off County Road S-2 ca. 30 mi SE of Borrego Palm Canyon Comment
  SEINET3407708 Image available Dalea spinosa C. W. Tilforth 1976-7-21 Riverside Large wash along Hwy. 195, c. 15 miles ne of Mecca, Colorado Desert Comment
  SEINET3407734 Image available Dalea spinosa J. C. Roos 1959-6-11 Imperial Coyote Wells. Comment
  SEINET6656794  Dalea spinosa Sears 1977-10-10 540 San Bernardino 2 miles SW of Essex; area in the Fenner Valley.; 0 503 Comment
  SEINET6656795  Dalea spinosa Victor Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Canyon.; 0 Comment
  GH53620  Dalea spinosa G. Thurber 1852-06-01 - 1852-07-01 684 Unknown Arroyos, Gila also on desert west of Colorado Comment
  GH53621  Dalea spinosa J. C. Fremont 1849-1-1 Unknown Comment
  RSA597469  Dalea spinosa L. C. Wheeler 1959-12-31 7659 Imperial Senator Wash, near Imperial Dam, ca. 1 mi. northwest of Squaw Lake. 91 Comment
  RSA680437  Dalea spinosa Sarah J. De Groot 2002-8-24 796 San Diego Anza-Borrego Desert State Park, Palm Spring Road Comment
  SEINET10486090  Dalea spinosa Billy Joe Cox 1975-4-23 Cox 4160 Riverside Palo verde, 1-3 km w, creosote desert scrub; sandy and gravelly entisols. 70 Comment
  SEINET10486091  Dalea spinosa David B. Dunn 1940-3-3 Dunn s.n. San Diego Colorado desert, alluvial sand and gravel. Dalea smoke tree wash by entrance to Borego by the upper road. Comment
  SEINET10871076  Dalea spinosa David B. Dunn, A. Folsom 1948-6-17 Dunn 3803 Riverside By quad 2. At camp in pushawalla canyon under palms. Desert dry wash indio Hills. Colorado desert. Comment
  SEINET10903920  Dalea spinosa Billy Joe Cox 1975-6-26 Cox 4203 Riverside Palo verde, 1-3 km w, creosote desert scrub; sandy and gravelly entisols. 21 Comment
  SEINET7078881  Dalea spinosa F. D. Johnson 1962-1-2 s.n. Unknown Palm Springs. Specimen formerly from the College of Forestry Herbarium, University of Idaho Number 6205. 61 Comment
  PASA214  Parosela spinosa Margaret Stason 4/30 Imperial Desert near EL Centro Comment
  RSA698052  Parosela spinosa J. R. Bruff 1934-6-19 537 Riverside 5 mi. S.E Palm Springs. Comment
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Aug 27 2011
  RSA704040  Parosela spinosa Anonymous s.n. Riverside Colorado Desert. Comment
  RSA704041  Parosela spinosa J. Russell Bruff 1929-12-28 453 Riverside Dos Palmas Comment
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Apr 28 2011
  RSA0054939  Parosela spinosa Keith E. Hoffmaster 1937-6-6 815 Riverside Palms to Pines Highway, desert end. Comment
  A369246  Psorothamnus spinosus J. A. Kusche 1921-12-4 Unknown Needles Comment
  A369247  Psorothamnus spinosus F. G. Woodcock 1922-04-01 - 1922-05-01 1800 Unknown Palm Springs Comment
  A369248  Psorothamnus spinosus F. G. Woodcock 1922-04-01 - 1922-05-01 1801 Unknown Palm Springs Comment
  A369249  Psorothamnus spinosus S. B. Parish & W. F. Parish 1882-06-01 - 1882-07-01 22 Unknown Vallecito Comment
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Jun 9 2012
  A369253  Psorothamnus spinosus F. A. Thackery 1928-5-29 456 Unknown Oasis Comment
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Feb 3 2017
  A369254  Psorothamnus spinosus A. Eastwood 1916-6-23 5940 Unknown Needles Comment
  A369258  Psorothamnus spinosus E. R. Johnson 1928-6-8 Unknown along highway south of Mecca on west side of Salton Sea Comment
Read comments
Jul 4 2012
  A369259  Psorothamnus spinosus S. D. McKelvey 1929-06-01 - 1929-07-01 1332 Unknown Palm Springs Comment
  A369260  Psorothamnus spinosus I. Tidestrom 1919-3-12 8552 Unknown Mesa. Needles Comment
  CAS-BOT-BC172588  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4282 San Bernardino Whipple Mountains: Chemehuevi Wash between powerline road and Lake Havasu 202 Comment
  CAS-BOT-BC172599  Psorothamnus spinosus Sarah J. De Groot; J. Mark Porter; Naomi Fraga; Lauren Machen 2003-5-4 2792 San Bernardino Whipple Mountains: South side of range, along Colorado River aqueduct W of Chamber's Well road 285 Comment
  CAS-BOT-BC172730  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4278 San Bernardino Whipple Mountains: Along small powerline road just west of Chemehuevi Indian Reservation, south of Chemehuevi Wash 146 Comment
  CAS-BOT-BC174334  Psorothamnus spinosus Sarah J. De Groot; J. Mark Porter; Naomi Fraga; Lauren Machen 2003-5-3 2661 San Bernardino Whipple Mountains: SE side along aqueduct road, SW of Bowman's wash. Up side wash 409 Comment
  CAS-BOT-BC175013  Psorothamnus spinosus Sarah J. De Groot 2003-8-27 3109 San Bernardino Whipple Mountains: West Well, near Chemehuevi Wash 224 Comment
  CAS-BOT-BC175453  Psorothamnus spinosus Sarah J. De Groot; Aydee Virgen; Charles Land 2004-6-26 4370 San Bernardino Whipple Mountains: Along Rio Vista Dr., wash toward river. Colorado River Indian Reservation 109 Comment
  CAS-BOT-BC182531  Psorothamnus spinosus Sarah J. DeGroot; Angela Gatto 2003-4-21 2563 San Bernardino Whipple Mountains: Bowman's Wash near intersection with Parker Dam road and Crossroads. West end of Crossroads OHV area 123 Comment
  CAS-BOT-BC183415  Psorothamnus spinosus James R. Shevock 1986-3-24 11366 Imperial Along county road S-80 paralleling Interstate 80, 3.4 miles east of Coyote Wells 100 Comment
  CAS-BOT-BC205337  Psorothamnus spinosus James R. Shevock 1986-3-24 11366 Imperial Colorado Desert Region. Along county road S-80 paralleling Interstate 80, 3.4 miles east of Coyote Wells 100 Comment
  CAS-BOT-BC340927  Psorothamnus spinosus David S. Thompson 1917-12-1 40 San Bernardino East of Ludlow Comment
  CAS-BOT-BC340929  Psorothamnus spinosus Lester Rowntree 1937-5-27 s.n. San Diego Box Canon [Canyon] Comment
  CAS-BOT-BC340930  Psorothamnus spinosus Alice Eastwood 1913-4-14 s.n. San Diego Yaqui Wells, Colorado Desert Comment
  CAS-BOT-BC340931  Psorothamnus spinosus LeRoy Abrams 1903-7-5 3980 San Diego Carriso [Carrizo] Creek, Colorado Desert Comment
  CAS-BOT-BC340932  Psorothamnus spinosus F. A. Thackery 1928-5-29 456 San Diego Oasis Comment
  CAS-BOT-BC340933  Psorothamnus spinosus Mrs. Wm. Buttle 1912-7-20 s.n. San Diego Warners Springs Comment
  CAS-BOT-BC340934  Psorothamnus spinosus T. F. Daniel; M. Baker 1984-4-7 3417 San Diego Along SD Co. Rd. S-2, SE of Vallecito, ca. 12 mi. NW Imperial Co. line Comment
  CAS-BOT-BC340936  Psorothamnus spinosus Carl B. Wolf 1928-6-23 2278 Imperial 5 miles west of Coyote Wells, base of Rocky Canyon to San Diego 390 Comment
  CAS-BOT-BC340937  Psorothamnus spinosus Carl B. Wolf 1928-6-23 2278 Imperial 5 mi. W. of Coyote Wells, base of Rocky Canyon to San Diego 390 Comment
  CAS-BOT-BC340938  Psorothamnus spinosus E. A. McGregor 1917-6-29 1066 Imperial Colorado Desert. Shepard Bridge near Coyote Wells Comment
  CAS-BOT-BC340939  Psorothamnus spinosus Edmund C. Jaeger 1920-4-10 s.n. Imperial Martinez Canon [Canyon], Colorado Desert Comment
  CAS-BOT-BC340940  Psorothamnus spinosus H. E. McMinn 1925-7-1 1486 Imperial 15 mi. S. Oasis - Col. Desert Comment
  CAS-BOT-BC340941  Psorothamnus spinosus H. E. McMinn 1924-7-4 1252 Imperial On the desert between Mt. Springs & Coyote Wells Comment
  CAS-BOT-BC340942  Psorothamnus spinosus B. D. Stark 1930-7-4 1641 Imperial Base of Mountain Springs Grade 0 Comment
  CAS-BOT-BC340944  Psorothamnus spinosus H. E. McMinn 1925-6-29 1456 Imperial 4 mi. N.W. Yuma, Ariz., Col. Desert Comment
  CAS-BOT-BC340945  Psorothamnus spinosus A. M. White 1974-6-7 1394 Riverside 23 mi. N. Desert Center Comment
  CAS-BOT-BC340946  Psorothamnus spinosus John Thomas Howell 1928-1-28 3291 Riverside Thousand Palms, Colorado Desert Comment
  CAS-BOT-BC340947  Psorothamnus spinosus G. P. Rixford 1911-4-1 s.n. Riverside 10 miles S.E. of Mecca Comment
  CAS-BOT-BC340948  Psorothamnus spinosus Roxana S. Ferris 1918-6-14 973 Riverside Between Palm Springs and Indian Wells Comment
  CAS-BOT-BC340949  Psorothamnus spinosus E. R. Johnson 1928-6-8 s.n. Riverside Along highway south of Mecca on west side of Salton Sea Comment
  CAS-BOT-BC340950  Psorothamnus spinosus S. B. Parish 1912-6-28 8107 Riverside Painted Canon [Canyon] near Mecca Comment
  CAS-BOT-BC340951  Psorothamnus spinosus Dr. E. Rixford 1917-4-17 s.n. Riverside Coachella Valley Comment
  CAS-BOT-BC340952  Psorothamnus spinosus A. C. Sanders 1995-5-23 17119 Riverside Colorado Desert, Coachella Valley: alluvial fans below the Santa Rosa Mtns., near the mouth of Martinez Cyn., at end of 72nd Ave. 25 Comment
  CAS-BOT-BC340953  Psorothamnus spinosus Marcus E. Jones 1926-6-8 s.n. Riverside Palm Spring Comment
  CAS-BOT-BC340954  Psorothamnus spinosus Marcus E. Jones 1926-6-8 s.n. Riverside Palm Spring Comment
  CAS-BOT-BC340955  Psorothamnus spinosus Marcus E. Jones 1926-6-8 s.n. Riverside Palm Spring Comment
  CAS-BOT-BC340956  Psorothamnus spinosus Marcus E. Jones 1926-6-8 s.n. Riverside Palm Spring Comment
  CAS-BOT-BC340957  Psorothamnus spinosus W. R. Dudley 1903-12-1 s.n. Riverside Near Palm Springs Comment
  CAS-BOT-BC340958  Psorothamnus spinosus Ferdinand W. Haasis 1963-1-8 3 .63 Imperial Colorado Desert, near power line, northwest of Cargo Muchacho Mountains and 4 3/4 miles north of Gold Rock Ranch 182 Comment
  CAS-BOT-BC340959  Psorothamnus spinosus F. W. Haasis 1964-2-1 19 .64 Imperial Vicinity of Gold Rock Ranch Comment
  CAS-BOT-BC340960  Psorothamnus spinosus F. W. Haasis 1964-2-8 3 .64 Imperial Colorado Desert northwest of Cargo Muchacho Mountains and three miles north of Gold Rock Ranch, near southwest corner Sec 22 T14S R20E 182 Comment
  CAS-BOT-BC340961  Psorothamnus spinosus F. W. Haasis 1964-2-8 1 .64 Imperial Colorado Desert northwest of Cargo Muchacho Mountains and three miles north of Gold Rock Ranch, near southwest corner Sec 22 T14S R20E 182 Comment
  CAS-BOT-BC340962  Psorothamnus spinosus Howard Scott Gentry 1938-7-6 3789 Riverside Coachella Valley Comment
  CAS-BOT-BC340963  Psorothamnus spinosus Victor Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Canyon 243 Comment
  CAS-BOT-BC340964  Psorothamnus spinosus Roxana S. Ferris 1918-6-14 973 Riverside Between Palm Springs and Indian Wells Comment
  CAS-BOT-BC340965  Psorothamnus spinosus F. W. Haasis 1964-2-8 2 .64 Imperial Colorado Desert west of Cargo Muchacho Mountains and two miles north of Gold Rock Ranch, near southeast corner Sec 28 T14S R20E 182 Comment
  CAS-BOT-BC340966  Psorothamnus spinosus Sarah J. De Groot; Angela Gatto; Firoozeh Navidara 2003-11-23 3465 San Bernardino Whipple Mountains: South side of range, north of Colorado River Aqueduct along road heading north into BLM Wilderness area. Just south of low foothills of range 358 Comment
  CAS-BOT-BC340967  Psorothamnus spinosus B. Pitzer 1991-7-24 1813 San Bernardino 29 Palms Marine Corps Base, Gays Pass Artillery Range, just S of N boundary of range. Ca. 3.5 air km N of Gays Pass & 4.25 air km E of (& slightly S of) Argos Mountain 914 Comment
  CAS-BOT-BC340968  Psorothamnus spinosus S. B. Parish; W. F. Parish 1880-6-1 22 San Bernardino Indio Comment
  CAS-BOT-BC340969  Psorothamnus spinosus Rimo Bacigalupi 1924-7-12 503 San Bernardino Near Amboy, (Mojave Desert) Comment
  CAS-BOT-BC340970  Psorothamnus spinosus John Thomas Howell 1933-6-29 11395 San Bernardino Baker Comment
  CAS-BOT-BC340971  Psorothamnus spinosus Alice Eastwood 1913-4-30 s.n. San Bernardino Palm Springs Comment
  CAS-BOT-BC340972  Psorothamnus spinosus Alice Eastwood 1916-6-23 5940 San Bernardino Needles Comment
  CAS-BOT-BC340973  Psorothamnus spinosus J. Aug. Kusche 1921-12-8 s.n. San Bernardino Needles Comment
  CAS-BOT-BC340974  Psorothamnus spinosus Roxana S. Ferris; Rimo Bacigalupi 1932-5-1 8231 San Bernardino Mopas Wash, Mopas Mts. near north Butte Comment
  CAS-BOT-BC340975  Psorothamnus spinosus Sarah J. De Groot 2003-8-26 3074 San Bernardino Whipple Mountains: Vidal Wash, along Highway 95 between Vidal and San Bernardino county line 155 Comment
  CAS-BOT-BC340976  Psorothamnus spinosus Sarah J. DeGroot; J. Mark Porter 2003-3-2 1334 San Bernardino Colorado Desert; Northeastern Colorado Desert region: Whipple Mountains: Whipple Wash, SW of powerline road 274 Comment
  CAS-BOT-BC340977  Psorothamnus spinosus Sarah J. DeGroot; Michael Denslow 2003-3-20 2080 San Bernardino Whipple Mountains: Wide wash along Needles-Parker road, southwest side of mountains 384 Comment
  CAS-BOT-BC340978  Psorothamnus spinosus Sarah J. DeGroot; Lee DeGroot 2003-4-5 2212 San Bernardino Whipple Mountains: Chemehuevi Wash at junction with highway 95, north of Vidal Junction 335 Comment
  CAS-BOT-BC340979  Psorothamnus spinosus Sarah J. De Groot; Angela Gatto 2003-9-6 3114 San Bernardino Whipple Mountains: Chemehuevi Indian Reservation (permit 21July 2003). Along powerline road between Havasu Palms and Havasu Lake; near Colorado River 136 Comment
  CAS-BOT-BC340980  Psorothamnus spinosus Sarah J. De Groot; Angela Gatto 2003-7-18 3044 San Bernardino Whipple Mountains: Along Highway 95 between Chemehuevi Wash and Vidal Junction 351 Comment
  CAS-BOT-BC340981  Psorothamnus spinosus Sarah J. De Groot; Angela Gatto 2003-7-18 3050 San Bernardino Whipple Mountains: Along Highway 95 between Chemehuevi Wash and Vidal Junction, just N of Pyramid Butte 381 Comment
  CAS-BOT-BC401151  Psorothamnus spinosus Sarah J. De Groot; April Garbat 2013-3-28 6979 San Bernardino Whipple Mountains: Along BLM road 056 (powerline road) at intersection with Chemehuevi Wash 224 Comment
  CDA27787  Psorothamnus spinosus W. E. Henson Jul 1932 Riverside Coachella Valley. 0 Comment
  CHSC13787  Psorothamnus spinosus R. Pierce Jr. 1965-4-14 75 San Bernardino W. edge of city limits, 29 Palms, Calif. in culvert wash opposite 'Artic Circle' store, corner of Estrella Ave. Comment
  CHSC850  Psorothamnus spinosus L. Nelson 1935-4-17 Riverside Colorado Desert. Comment
  CHSC93171  Psorothamnus spinosus Susan Bazell 2005-12-30 11 San Diego Fish Creek Wash, west of the Wind Caves, west of both connections to Loop Wash. 190 Comment
  GH369239  Psorothamnus spinosus S. B. Parish 1912-6-28 8107 Unknown Near Mecca, Colorado desert Comment
Read comments
Jun 25 2012
  GH369240  Psorothamnus spinosus Vict. Duran 1933-7-3 3499 Unknown Coachella Valley at Deep Canyon 243 Comment
  GH369241  Psorothamnus spinosus L. Abrams 1903-7-5 3980 Unknown Caniso creek, Colorado desert Comment
  GH369242  Psorothamnus spinosus M. F. Spencer 1918-3-27 756 Unknown Palm Springs 137 Comment
  GH369244  Psorothamnus spinosus J. F. Collins 1918-4-6 Unknown Needles Comment
  GH369245  Psorothamnus spinosus C. B. Wolf 1928-6-23 2278 Unknown 5 miles west of Coyote Wells. base rocky canyon - to San Diego. 390 Comment
  GH369251  Psorothamnus spinosus L. R. Landrum 1993-5-30 7821 Unknown Ocotillo, at exit to Calexico on Hwy. 8 Comment
  GH369252  Psorothamnus spinosus T. F. Daniel & M. Baker 1984-4-7 3417 Unknown Desert flats and washes along SD co. Rd. S-2, SE of Vallecito, ca. 12 mi. NE Imperial Co. line Comment
  GH369255  Psorothamnus spinosus M. F. Spencer 1918-3-27 756 Unknown Palm Springs 137 Comment
  GH369256  Psorothamnus spinosus R. C. Bacigalupi 1924-7-12 503 Unknown near Amboy (Mohave Desert) Comment
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Jul 7 2018
  GMDRC3523  Psorothamnus spinosus J. Andre 2009-6-17 10757 San Bernardino Broadwell Lake Basin: along transmission line road approx. 5 mi. E. of Cady Peak, 3 mi. W. of Crucero Rd. USGS 7.5 min. Quad: Sleeping Beauty 34 deg. 51.976' N 116 deg. 15.674' W. Elev. 2013 ft. 614 Comment
  GMDRC5565  Psorothamnus spinosus J. Andre 2012-5-23 22363 San Bernardino Marble Mountains: along Kelbaker Rd, 4.2 mi. south of I-40 freeway, west end of Marble Mtns 625 Comment
  GMDRC5841  Psorothamnus spinosus J. M. Andre 2013-4-17 24964 San Bernardino Granite Mountains: along powerline road, 6 mi. west of Kelso Dunes, at Budweiser Wash crossing 575 Comment
  HSC25232  Psorothamnus spinosus Richard Spjut 1972-1-4 2078 San Bernardino Mojave Desert: Near the Black Mts., 20 mi. E of 29 Palms 610 Comment
  IRVC26102  Psorothamnus spinosus A. C. Sanders, Mark A. Elvin 2003-10-5 27285 San Bernardino large wash southeast of Dale Dry Lake, south side of Hwy 62 just west of Ironage Rd. Southern Mojave Desert 410 Comment
  IRVC26925  Psorothamnus spinosus A. C. Sanders, Mark A. Elvin 2004-10-10 28950 San Bernardino south end of the Sheephole Mtns. along Hwy 62, 2.8 miles west of Clarks Pass, 26.2 miles east of Utah Trail in Twentynine Palms Southern Mojave Desert 530 Comment
  JEPS41625  Psorothamnus spinosus Mary Beal 1938-7-12 568 San Bernardino Mojave Desert, Was at Essex Comment
  JEPS41653  Psorothamnus spinosus Marjorie Clary Oct. 1930 Riverside Coral Reef Ranch , Coral Reef Ranch (Coachella) Comment
  JEPS41654  Psorothamnus spinosus Marjorie Clary Oct 1930 13 Riverside Coral Reef Ranch Coachella Valley -13 Comment
  JEPS41655  Psorothamnus spinosus W. L. Jepson 1930-5-9 15539 San Bernardino Mojave Desert. Kane Springs Wash. Comment
  JEPS41656  Psorothamnus spinosus unknown 1844-1 Imperial Coyote Wells , Coyote Wells (Imperial Valley) Comment
  JEPS41657  Psorothamnus spinosus Mary Beal 1931-5-10 San Bernardino near Baker Road Sta. (Soda Lake Mts., Mohave Desert); Mohave Desert, Soda Lake Mts., near Baker Road Sta. Comment
  JEPS41658  Psorothamnus spinosus W. L. Jepson 1912-10-24 5212 San Bernardino Little Chemehuevis Valley 45 Comment
  JEPS41682  Psorothamnus spinosus E. E. Schellenger 1903-7 2 Riverside Chuckawalla Bench Comment
  JEPS41683  Psorothamnus spinosus S. B. Parish 1912-6-28 8167 Riverside Red Canyon near Mecca; Red Canyon near Mecca Comment
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Nov 24 2011
  JEPS41698  Psorothamnus spinosus Carl V. Meyer 1928-5-25 409 Imperial 10 miles South of Oasis along State Highway. Colorado Desert Comment
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Jun 24 2008
  JEPS68904  Psorothamnus spinosus Annie M. Alexander and Louise Kellogg 1939-6-26 843 San Bernardino West of Baker Comment
  JEPS96703  Psorothamnus spinosus Dean W. Taylor 1998-6-8 16499 Imperial Tarantula Wash, ca. 2.5 miles down the wash south of Highway 78, and ca. 8 miles E of Highway 86 -15 Comment
  JOTR29190  Psorothamnus spinosus La Doux, Tasha 2005-9-8 1303 Riverside Joshua Tree National Park. Fried Liver Wash 395 Comment
  JOTR30155  Psorothamnus spinosus La Doux, Tasha 2009-6-17 1788 San Bernardino Joshua Tree National Park. Pediments NW of Coxcomb Mountains Comment
  JOTR30157  Psorothamnus spinosus La Doux, Tasha 2009-6-17 1788 San Bernardino Joshua Tree National Park. Pediments NW of Coxcomb Mountains Comment
  JOTR32398  Psorothamnus spinosus Harding, Mitzi, A. Benton 2011-7-13 16 Riverside Joshua Tree National Park. Pinto Basin; Smoke Tree Wash; sandy, open flat along Pinto Basin road, just north of Smoke Tree Wash 809 Comment
  JOTR32399  Psorothamnus spinosus Harding, Mitzi, A. Benton 2011-7-13 16 Riverside Joshua Tree National Park. Pinto Basin; Smoke Tree Wash; sandy, open flat along Pinto Basin road, just north of Smoke Tree Wash 809 Comment
  JOTR32400  Psorothamnus spinosus Harding, Mitzi, A. Benton 2011-7-13 16 Riverside Joshua Tree National Park. Cottonwood Canyon, between Cottonwood and Eagle Mountains; Along Cottonwood Spring Road; Large, active, sandy wash 741 Comment
  JOTR32401  Psorothamnus spinosus Harding, Mitzi, A. Benton 2011-7-13 16 Riverside Joshua Tree National Park. Cottonwood Canyon, between Cottonwood and Eagle Mountains; Along Cottonwood Spring Road; Large, active, sandy wash 741 Comment
  OBI2144  Psorothamnus spinosus P. A. Holden 1970-8-11 1141 San Bernardino 29 Palms and vicinity 457 Comment
  OBI25756  Psorothamnus spinosus David J. Keil 1980-6-20 14064 Riverside Box Canyon rd exit from I-10 488 Comment
  OBI50878  Psorothamnus spinosus L. R. Landrum 1993-5-30 7821 Imperial Ocotillo, at exit to Calexico on hwy 8 Comment
  OBI52865  Psorothamnus spinosus Larry Kelly 1988-3-24 27 Imperial along Imperial Hwy (S-2) in Ocatillo ca. .5 mi N of i-8 Comment
  OBI62164  Psorothamnus spinosus P. A. Holden 1970-8-11 1141 San Bernardino Near 29 Palms and common hear E to Arizona Comment
  POM155944  Psorothamnus spinosus L. R. Abrams 1903-7-5 3980 San Diego Carisso Creek [Carrizo Creek], Colorado Desert. Comment
  POM1899  Psorothamnus spinosus J. S. Clease 1916-03 s.n. Riverside Palm Springs. Comment
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Aug 27 2011
  POM195536  Psorothamnus spinosus Carl B. Wolf 1928-6-23 2278 Imperial 5 miles west of Coyote Wells. Loose rocky canyon to San Diego. 390 Comment
  POM210818  Psorothamnus spinosus Victor Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Canyon 244 Comment
  POM22365  Psorothamnus spinosus Marjorie D. Clary 1929-10 s.n. Riverside Coachella Valley Comment
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Jul 24 2010
  POM276909  Psorothamnus spinosus Lyman D. Benson 1941-7-6 10998 San Bernardino Essex, 90 mi. E of Barstow 610 Comment
  POM27785  Psorothamnus spinosus Marcus E. Jones 1903-5-8 s.n. Riverside Indio. -7 Comment
  POM28910  Psorothamnus spinosus Marcus E. Jones 1906-4-19 s.n. San Diego Canyon west of Borrego Spring. 549 Comment
  POM46967  Psorothamnus spinosus Mary F. Spencer 1918-3-27 756 Riverside Palm Springs. 137 Comment
  POM47536  Psorothamnus spinosus Philip A. Munz 1924-4-6 7826 San Bernardino 7 miles east of Daggett. Newberry Mts Comment
  POM47617  Psorothamnus spinosus M. French Gilman 1924-07 s.n. Riverside Near Palm Springs. Comment
  POM67048  Psorothamnus spinosus Marcus E. Jones 1924-2-7 s.n. Imperial Chocolate Mountains, Colorado Desert. Comment
  POM68415  Psorothamnus spinosus Marcus E. Jones 1924-2-28 s.n. Riverside West of Blythe. Comment
  RSA0011388  Psorothamnus spinosus Duncan S. Bell 2013-3-24 4650 Imperial The Jacumba Mountains; in canyon draining to the north of Myer Valley; approximately 3.25 air miles northeast of Mountain Spring or 5 air miles southwest of the town of Ocotillo. 434 Comment
  RSA0013459  Psorothamnus spinosus Kristin Forgrave, Sarah J. De Groot 2013-6-5 15 San Bernardino Chalk canyon in Chemehuevi Valley on Powerline rd. 243 Comment
  RSA0019787  Psorothamnus spinosus April Garbat, Kristin Forgrave 2013-5-29 75 Riverside Along Box Canyon Rd from Cottonwood Springs Rd to Mecca. 305 Comment
  RSA0021476  Psorothamnus spinosus David Fraker, Aaron C. Sedgwick 2012-4-3 52 San Bernardino Mojave Desert; On Troy Rd. between Newberry and Rodman Mtns. 207 Comment
  RSA0031468  Psorothamnus spinosus Kristin Forgrave, Sarah J. De Groot 2013-6-5 16 San Bernardino Hwy 95 N of Lobecks Pass (near gas pipeline) along side of the road. 474 Comment
  RSA0031469  Psorothamnus spinosus Kristin Forgrave, April Garbat 2013-5-15 7 San Bernardino Chemehuevi Wash: BLM Power Line Rd (056) in a wash with chalk and sulphur colored rocks. 243 Comment
  RSA0040433  Psorothamnus spinosus Sarah J. De Groot, April Garbat 2013-3-28 6979 San Bernardino Whipple Mountains: Along BLM road 056 (powerline road) at intersection with Chemehuevi Wash. 224 Comment
  RSA0040481  Psorothamnus spinosus Duncan S. Bell 2014-2-21 6169 San Bernardino Newberry Mountains; northwest section of range; collecting within the Newberry Mountains Wilderness area; approximately 7.75 air miles northwest of Kane Springs. 885 Comment
  RSA0078451  Psorothamnus spinosus J. M. Andre 2013-10-11 29616 San Bernardino Bristol Mountains: dirt road to base of range, 4.4 mi. north of Hwy 66 (Natl Trails Hwy), 0.5 mi. west of Kelbaker Rd. 490 Comment
  RSA0085472  Psorothamnus spinosus Jim Andre 2014-1-28 26700 San Bernardino Dead Mountains; south end of range along banks of Piute Wash, approx. 8 mi. west of Needles. 309 Comment
  RSA0094186  Psorothamnus spinosus Duncan S. Bell, Evan Meyer 2014-10-29 7687 Riverside Santa Rosa Mountains; collecting in Agua Alta Canyon, to the north of Martinez Canyon, about 6 air miles southeast of the summit of Martinez Mountain. 394 Comment
  RSA0112107  Psorothamnus spinosus Duncan S. Bell, Amanda Turek 2009-3-30 193 Riverside South end of the Arica Mountains; approximately 1.5 air miles southwest of Priest Well. 365 Comment
  RSA0113150  Psorothamnus spinosus Bill Sullivan 2008-6-17 513 San Diego Borrego Springs, Rango Way, 0.2 mi northwest of intersection with Yaqui Pass Road. 154 Comment
  RSA101226  Psorothamnus spinosus David B. Dunn 1947-7-12 2952 Riverside Pushawalla Canyon, Indio Hills. Comment
  RSA11595  Psorothamnus spinosus C. Epling, Wm. Robison 1933-6-24 s.n. Riverside Near Cathedral City near Palm Springs Comment
  RSA1192  Psorothamnus spinosus B. D. Stark 1930-7-4 876 Imperial Base of Mountain Springs grade Comment
  RSA125245  Psorothamnus spinosus E. K. Balls, George B. Everett 1957-8-20 22668 Riverside Palm Springs, on S boundary, along rd. to Cathedral City. 91 Comment
  RSA13819  Psorothamnus spinosus Victor Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Canyon 244 Comment
  RSA171102  Psorothamnus spinosus Robert F. Thorne 1963-5-23 31838 Imperial Open desert along Hwy 80 near Plaster City. Comment
  RSA2644  Psorothamnus spinosus E. R. Johnson 1928-6-8 973 Imperial Along highway, W side of the Salton Sea, Colorado Desert Comment
  RSA264433  Psorothamnus spinosus C. W. Tilforth, Jeff Barnes 1976-7-21 1219 Riverside Along Hwy 195 in large sandy wash, 15 miles NE of Mecca Comment
  RSA269977  Psorothamnus spinosus Lyndon Wester 1970-4-19 14 San Bernardino On northern pediment; in sandy, dry stream bed Comment
  RSA278377  Psorothamnus spinosus James Henrickson 1978-4-30 1 San Bernardino Mojave Desert c. 28 air mi. SE of Barstow, Box Canyon south of Troy Dry Lake in Rodman Mtns. 915 Comment
  RSA284576  Psorothamnus spinosus C. W. Tilforth 1980-7-1 2060 San Bernardino Wash 4.0 mi. W of jct. of road to Iron Mtn. Pumping Plant and Hwy 62, E of Granite Pass, Comment
  RSA288832  Psorothamnus spinosus Robert F. Thorne, C. W. Tilforth, Barry A. Prigge 1977-10-29 50685 San Bernardino near junction of Interstate 40 and Kelbaker Rd. S of Granite Mts. 915 Comment
  RSA289334  Psorothamnus spinosus Charles Convis 1980-4-9 145 Imperial 27 km due WNW of Westmorland. -21 Comment
  RSA295547  Psorothamnus spinosus Lyman D. Benson, Robert Benson 1952-4-8 14848 Riverside Colorado Desert. 2 miles west of Shaver Summit, east of Indio, US 66. Colorado Desert Drainage Area. 610 Comment
  RSA300560  Psorothamnus spinosus Lyman D. Benson 1961-7-4 16095 Imperial Just e of the sand dunes W of Yuma on US 80 30 Comment
  RSA33633  Psorothamnus spinosus N. C. Cooper 1944-7-15 1603 Riverside Palm Springs. 122 Comment
  RSA342114  Psorothamnus spinosus James D. Morefield 1985-7-6 2761 San Bernardino 7.3 miles N30E of Essex about 1 mile N of Interstate 40 at Fenner. 640 Comment
  RSA403989  Psorothamnus spinosus George B. Grant 1906-4-20 s.n. Riverside Palm Springs. Comment
  RSA404267  Psorothamnus spinosus Howard Mullins 1931-4-11 s.n. Riverside Thousand Palms Comment
  RSA404268  Psorothamnus spinosus H. S. Gentry 1938-7-6 3789 Riverside Coachella Valley Comment
  RSA404269  Psorothamnus spinosus Christina Clark 1929-3-17 1957 Riverside Palm Canyon Comment
  RSA404270  Psorothamnus spinosus Ora M. Clark 1929-4-6 1982 San Diego Borrego Valley Comment
  RSA404271  Psorothamnus spinosus Anstruther Davidson 1895-06 1903 Riverside Palm Springs. Comment
  RSA404272  Psorothamnus spinosus Ora M. Clark 1929-2-22 1587 Riverside Sandy desert valleys. So. of Palm Springs. Colorado Desert. Comment
  RSA404273  Psorothamnus spinosus Christopher Davidson 1974-6-15 2292 Riverside Interstate 10, ca. 5 mi. E of Chiriaco Summit. 457 Comment
  RSA404274  Psorothamnus spinosus M. V. Hood 1931-06 s.n. Riverside Coachella Valley, Coral Reef Ranch. Comment
  RSA404275  Psorothamnus spinosus Julian P. Donahue 1973-6-16 s.n. Riverside Corn Springs Wash at Corn Spring, Chuckwalla Mountains, 7.5 mi. SE Desert Center 488 Comment
  RSA404277  Psorothamnus spinosus Anstruther Davidson 1928-5-1 s.n. Riverside Colorado Desert. Comment
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Feb 11 2014
  RSA492693  Psorothamnus spinosus Walter Wisura 1989-5-10 4340 Imperial 0.7 mi. S of Hwy 98 S of Ocotillo, in sandy, gravelly wash. Comment
  RSA498753  Psorothamnus spinosus H. de Forest 1924-4-16 s.n. Imperial Salton Sea, near Hwy Comment
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Oct 23 2012
  RSA498754  Psorothamnus spinosus Aloys Nicholson 1930-4-6 s.n. Riverside 1000 Palms. Colorado Desert. Comment
  RSA554033  Psorothamnus spinosus B. Pitzer 1991-7-24 1813 San Bernardino 29 Palms Marine Corps Base, Gay's Pass Artillery Range, just S of N boundary of range. Ca. 3.5 air km N of Gays Pass and 4.25 air km E of Argos Mountain. 915 Comment
  RSA556296  Psorothamnus spinosus L. R. Landrum 7821 Imperial Ocotillo, at exit to Calexico on Hwy. 8. Comment
  RSA605773  Psorothamnus spinosus A. C. Sanders 1995-5-23 17119 Riverside Colorado Desert, Coachella Valley: alluvial fans below the Santa Rosa Mtns, near the mouth of Martinez Cyn., at end of 72nd Ave. 25 Comment
  RSA623940  Psorothamnus spinosus Raymond J. Dobbs 1927-3-30 s.n. Riverside Near Palm Springs. Comment
  RSA677948  Psorothamnus spinosus Sarah J. De Groot 2002-5-10 679 San Diego Anza-Borrego Desert State Park. Comment
  RSA681866  Psorothamnus spinosus LeRoy Gross, S. D. Boyd, Michael Denslow, Lisa Rojas 2003-10-21 1203 San Bernardino East side of the Soda Mountains; North of interstate 15, west of Baker. Along jeep trail to Blue Bell Mine. Exit Zzyzx Road., A short distance from the jeep trail intersection with another jeep trail, in an east direction, just south of the powerlines. (east, west running jeep trail that follows the powerlines) This jeep trail is washed out a few miles to the east of the Blue Bell mine trail. Area has low hills with washes in between. 488 Comment
  RSA705482  Psorothamnus spinosus Sarah J. De Groot, J. Mark Porter 2003-3-2 1334 San Bernardino Whipple Mountains: Whipple Wash, SW of powerline road. 274 Comment
  RSA705483  Psorothamnus spinosus Sarah J. De Groot, J. Mark Porter 2003-3-17 1354 San Bernardino Whipple Mountains: Wash and desert pavement along Highway 95 between Vidal and Vidal Junction. 260 Comment
  RSA705484  Psorothamnus spinosus Sarah J. De Groot, Michael Denslow 2003-3-20 2135 San Bernardino Whipple Mountains: Copper Basin Dunes OHV area, near Echo Point along Parker Dam road. 115 Comment
  RSA705486  Psorothamnus spinosus Sarah J. De Groot, Lee De Groot 2003-4-5 2212 San Bernardino WHIPPLE MOUNTAINS: Chemehuevi Wash at junction with highway 95, north of Vidal Junction. 335 Comment
  RSA706266  Psorothamnus spinosus Sarah J. De Groot, Angela Gatto 2003-9-6 3114 San Bernardino Whipple Mountains: Chemehuevi Indian Reservation. Along powerline road between Havasu Palms and Havasu Lake; near Colorado River. 136 Comment
  RSA706347  Psorothamnus spinosus Sarah J. De Groot, Angela Gatto 2003-7-18 3044 San Bernardino Whipple Mountains: Along Highway 95 between Chemehuevi Wash and Vidal Junction. 351 Comment
  RSA708696  Psorothamnus spinosus Sarah J. De Groot, Angela Gatto, Firoozeh Navidara 2003-11-23 3465 San Bernardino Whipple Mountains: South side of range, north of Colorado River Aqueduct along road heading north into BLM Wilderness area. Just south of low foothills of range. 358 Comment
  RSA710721  Psorothamnus spinosus Sarah J. De Groot 2004-2-5 3528 San Bernardino WHIPPLE MOUNTAINS: Vidal Wash at intersection with Highway 95. 155 Comment
  RSA712438  Psorothamnus spinosus Sarah J. De Groot, Angela Gatto 2003-4-21 2563 San Bernardino Whipple Mountains: Bowman's Wash SE of Copper Basin, near Colorado River Indian Reservation boundary. 354 Comment
  RSA713321  Psorothamnus spinosus A. C. Sanders, Mitch Provance, Petra Wester 2004-5-30 28093 San Bernardino Mojave Desert: SE end of Bristol Mountains, 4 miles ENE of Amboy. 235 Comment
  RSA714040  Psorothamnus spinosus Sarah J. De Groot, J. Mark Porter, Naomi S. Fraga, Lauren Machen 2003-5-3 2661 San Bernardino Whipple Mountains: SE side along aqueduct road, SW of Bowmans Wash. Up side wash. 409 Comment
  RSA714539  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4282 San Bernardino WHIPPLE MOUNTAINS: Chemehuevi Wash between powerline road and Lake Havasu. 202 Comment
  RSA714542  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4278 San Bernardino Whipple Mountains: Along small powerline road just west of Chemehuevi Indian Reservation, south of Chemehuevi Wash. 146 Comment
  RSA715405  Psorothamnus spinosus Sarah J. De Groot, Aydee Virgen, Charles Land 2004-6-26 4370 San Bernardino Whipple Mountains: Along Rio Vista Dr., wash toward river. Colorado River Indian Reservation. 109 Comment
  RSA719513  Psorothamnus spinosus Sarah J. De Groot, J. Mark Porter, Naomi S. Fraga, Lauren Machen 2003-5-4 2792 San Bernardino Whipple Mts: South side of range, along Colorado River aqueduct W of Chamber's Well road. 285 Comment
  RSA721156  Psorothamnus spinosus J. Mark Porter 2001-11-18 13351 San Bernardino WHIPPLE MOUNTAINS: Wide wash of plain and slightly deeper (~2m) wash base. Comment
  RSA725381  Psorothamnus spinosus Steve D. Boyd 2007-10-29 11800 San Bernardino Brown Buttes area at northwestern end of Marble Mountains, on road to microwave towers east of Kelbaker Road, just south of Interstate 40. 915 Comment
  RSA732112  Psorothamnus spinosus L. Louise Jee 2006-6-22 126 San Diego Borrego Springs, intersection of Borrego Springs Rd. and S-3 (Yaqui Pass Rd) 0.6 miles west on Borrego Springs Rd. 171 Comment
  RSA735392  Psorothamnus spinosus Steve D. Boyd, Carol Boyd 2007-4-22 11731 San Bernardino North base of the Sheephole Mountains, just northeast of Sheephole Pass, east of Amboy Road. 610 Comment
  RSA743806  Psorothamnus spinosus Sarah J. De Groot, Janelle De Groot 2003-7-13 3035 San Diego Along Borrego Springs Road, north of state park boundary and south of Borrego Springs. 198 Comment
  RSA784975  Psorothamnus spinosus Duncan S. Bell 2012-3-18 3218 Riverside The Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, approximately 2.8 air miles southwest of Hidden Spring. 20 Comment
  RSA796110  Psorothamnus spinosus Duncan S. Bell 2009-4-20 321 Riverside Arica Mountains: southeast of range, approximately 7.5 air miles south of Rice. 244 Comment
  RSA799312  Psorothamnus spinosus Jim Andre 2012-5-23 22365 San Bernardino Along Hwy 62, 4.5 mi west of town of 29 Palms. 798 Comment
  RSA799313  Psorothamnus spinosus Jim Andre 2012-5-23 22364 San Bernardino Along Amboy Rd, 0.7 mi. south of Sheephole Pass. 652 Comment
  RSA799314  Psorothamnus spinosus Jim Andre 2012-5-23 22363 San Bernardino Marble Mountains: along Kelbaker Rd, 4.2 mi south of I-40 freeway, west end of Marble Mtns. 625 Comment
  SBBG115080  Psorothamnus spinosus E. Collins 1992-4-2 San Diego Fish Crk, ca. 0.5 mi S of cmpgrd; Split Mtn; Anza Borrego State Park Comment
  SBBG119926  Psorothamnus spinosus A. C. Sanders, M. Provance, P. Wester 2004-5-30 28093 San Bernardino SE end of Bristol Mtns, 4 mi ENE of Amboy 235 Comment
  SBBG3321  Psorothamnus spinosus H. and M. Dearing 1942-1-17 4786 Riverside near Cathedral City Comment
  SBBG3322  Psorothamnus spinosus H. and M. Dearing 1940-6-8 4333 Riverside near Palm Springs Comment
  SBBG3323  Psorothamnus spinosus H. and M. Dearing 1942-4-4 4855 San Bernardino near Rice Comment
  SBBG3324  Psorothamnus spinosus M. Van Rensselaer 1945-11-18 1919 Riverside S of Cathedral City Comment
  SBBG68033  Psorothamnus spinosus M. Van Rensselaer 1945-11-18 1919 Riverside S of Cathedral City Comment
  SBBG68034  Psorothamnus spinosus R. Hoffmann 1928-10-21 Riverside Fig Tree John's [Figtree John Spring] -60 Comment
  SBBG68035  Psorothamnus spinosus V. Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Cyn 243 Comment
  SD113620  Psorothamnus spinosus Darley F. Howe 1941-7-10 1186 Imperial Mountain Springs Grade at the foot of grade (mak 7/06) Comment
  SD118355  Psorothamnus spinosus Duffie Clemons, Erik Jonsson 1985-1-20 899 San Diego Carrizo Creek Comment
  SD12460  Psorothamnus spinosus Frank F. Gander 1935-11-14 293 11 San Diego between Sentenac Canon and the Narrows Comment
  SD12461  Psorothamnus spinosus Frank F. Gander 1935-11-14 293 10 San Diego between Sentenac Canon and the Narrows Comment
  SD128211 Image available Psorothamnus spinosus Duffie Clemons, Erik Jonsson 1989-11-22 2270 San Diego Common in sandy soil of June Wash 320 Comment
  SD15975  Psorothamnus spinosus Frank F. Gander 1936-5-30 2534 San Diego near the Narrows Comment
  SD16750  Psorothamnus spinosus Frank F. Gander 1937-4-6 3205 San Diego extreme northeast corner of San Diego County Comment
  SD180272  Psorothamnus spinosus Bill Sullivan 2005-6-11 125 San Diego Borrego Springs, Anza-Borrego Desert State Park, Coyote Canyon Jeep Trail, 2 mi North of North end of paved DiGiorgio Rd, 175 yards NE of trailhead for Alcoholic Pass trail. 445 Comment
  SD180273  Psorothamnus spinosus Bill Sullivan 2006-6-5 245 A San Diego Borrego Springs, San Felipe Wash (Texas Dip) 10.5 miles southeast of Christmas Circle via Borrego Springs Road and Borrego Valley Road. 235 Comment
  SD183630  Psorothamnus spinosus L. Louise Jee 2006-6-21 125 San Diego Borrego Springs, intersection of Borrego Springs Rd. and S-3 (Yaqui Pass Rd) 3.4 miles south on S-3 in Anza-Borrego Desert State Park. 405 Comment
  SD183631  Psorothamnus spinosus L. Louise Jee 2006-6-22 126 San Diego Borrego Springs, intersection of Borrego Springs Rd. and S-3 (Yaqui Pass Rd) 0.6 miles west on Borrego Springs Rd. 170 Comment
  SD185682  Psorothamnus spinosus Sarah De Groot, Janelle De Groot 2003-7-13 3035 San Diego Along Borrego Springs Road, N of state park boundary and S of Borrego Springs. 198 Comment
  SD186220  Psorothamnus spinosus A. C. Sanders, Mitch Provance, Petra Wester 2004-5-30 28058 San Bernardino Argos Wash, just north of the Old National Trails Highway, ca. 8.0 km west of Ludlow. 604 Comment
  SD19851  Psorothamnus spinosus Frank F. Gander 1937-11-21 4701 San Diego across from Gypsum Mine, Fish Creek Comment
  SD201090  Psorothamnus spinosus Margaret R. Mulligan, L. Hendrickson, G. Fleming 2009-10-4 3148 b Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 22 (SL22), in Palm Wash, site TAMRAM2, in drainage of mesa & wash complex. 22 Comment
  SD201091  Psorothamnus spinosus Margaret R. Mulligan, L. Hendrickson, G. Fleming 2009-10-4 3179 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 19 (SP19), in Palm Wash, site FOUSPL, in wash. 99 Comment
  SD201092  Psorothamnus spinosus Margaret R. Mulligan, L. Hendrickson, G. Fleming 2009-10-4 3175 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 18 (SL18), in Palm Wash, site ATRLIN2I, in wash. 109 Comment
  SD201093  Psorothamnus spinosus Margaret R. Mulligan, L. Hendrickson, G. Fleming 2009-10-4 3168 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 20 (SL20), in Palm Wash, site PSOSPI, in wash. 73 Comment
  SD201094  Psorothamnus spinosus Margaret R. Mulligan, L. Hendrickson, G. Fleming 2009-10-4 3160 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 21 (SP21), in Palm Wash, site ISOACR, in wash. 42 Comment
  SD201700  Psorothamnus spinosus Joe Barth 2007-12-4 874 San Diego Anza-Borrego Desert State Park, San Felipe Wash. About 10 miles SE of Borrego Springs. 1 mile NNW of the intersection of Borrego Valley Rd and Hwy 78. ~900m downstream of the huge dip in BV Rd that is called Texas Dip (George Bush?) on some maps. 180 Comment
  SD201701  Psorothamnus spinosus Joe Barth 2007-12-4 872 San Diego Anza-Borrego Desert State Park, San Felipe Wash. About 10 miles SE of Borrego Springs. 0.8 mile NNW of the intersection of Borrego Valley Rd and Hwy 78. ~400m downstream of the huge dip in BV Rd that is called Texas Dip (George Bush?) on some maps. 182 Comment
  SD204344  Psorothamnus spinosus Bill Sullivan 2008-6-18 516 San Diego Anza-Borrego Desert State Park, Palo Verde Wash, 1 mi south of Ella Wash (2.5 miles southeast of junction of Highway 78 and Ella Wash) 167 Comment
  SD204345  Psorothamnus spinosus Bill Sullivan 2008-6-10 505 San Diego Anza-Borrego Desert State Park, 18 mi E of Borrego Springs, County Road S-22 (Borrego Salton Seaway) Ella Wash, 0.5 mile south of Coachwhip Canyon 356 Comment
  SD204346  Psorothamnus spinosus Bill Sullivan 2008-6-17 513 San Diego Borrego Springs, Rango Way, 0.2 mi northwest of intersection with Yaqui Pass Road 153 Comment
  SD204347  Psorothamnus spinosus Bill Sullivan 2008-6-10 508 San Diego Anza-Borrego Desert State Park, Borrego Springs, along County Road S-22 (Montezuma Valley Road) 1 mile southwest of junction with Borrego Palm Canyon Drive 270 Comment
  SD211416  Psorothamnus spinosus Jon Rebman, A. Trouette, V. Marshall, M. Vazquez, T. Beltran 2010-4-3 18919 Imperial South of Plaster City on Bureau of Land Management (BLM) property in an area proposed for development of a solar facility: S of Hwy. S80 & N of I-8, NE of Ocotillo & W of El Centro; in a large wash just S of a powerline road 36 Comment
  SD212226  Psorothamnus spinosus Ruth R. Ehly 2008-7-3 29 San Diego Borrego Springs, 2 miles NNW of Christmas Circle, 100 yds SE of intersection of Yaqui Rd. an Pointing Rock Dr. 189 Comment
  SD214348  Psorothamnus spinosus Larry Hendrickson 2009-7-12 4142 San Diego Anza-Borrego Desert State Park. San Felipe Wash, 2.4 miles WSW of intersection of State hwy. 78 and County Road S-3 (Yaqui Pass), and 0.4 mile east of intersection with access road to Plum Canyon. Near cut-across road to Grapevine Canyon Road. 502 Comment
  SD214349  Psorothamnus spinosus Larry Hendrickson 2009-7-12 4141 San Diego Anza-Borrego Desert State Park. Small tributary drainage of San Felipe Wash south of Tamarisk Grove campground, at intersection of State hwy. 78 and County Road S-3 (Yaqui Pass). S-side of 78. 438 Comment
  SD216095  Psorothamnus spinosus Nancy Nenow, Lawrence Glacy 2009-5-25 702 San Diego Anza-Borrego Desert State Park, about 2 mi N of Egg Mountain, 1I(c) mi W off highway S-2 as you emerge from Indian Gorge driving west. 344 Comment
  SD224975  Psorothamnus spinosus A. C. Sanders 1995-5-23 17119 Riverside Colorado Desert, Coachella Valley: alluvial fans below the Santa Rosa Mtns., near the mouth of Martinez Cyn., at end of 72nd Ave. 22 Comment
  SD224976  Psorothamnus spinosus B. Pitzer 1996-11-11 2933 Riverside Orocopia Mts: Salt Creek Wash, at intersection w/ SR 211, 4rd. Mi. S of Bob's Cabin. Hayfield USGS Quad. 274 Comment
  SD231319  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4278 San Bernardino Whipple Mountains: Along small powerline road just west of Chemehuevi Indian Reservation, south of Chemehuevi Wash. 146 Comment
  SD231320  Psorothamnus spinosus LeRoy Gross, Steve Boyd, Michael Denslow and Lisa Rojas 2003-10-21 1203 San Bernardino Northcentral Mojave Desert; East side of the Soda Mountains; North of interstate 15, west of Baker. Along jeep trail to Blue Bell Mine. Exit ZZYZX Road. Near intersection of 2 jeep trails just south of powerlines. 487 Comment
  SD241488  Psorothamnus spinosus Joe Barth 2011-5-25 1586 San Diego BLM land; Canebrake Wash. 2.6 miles E of the summit of Red Top. About 20 miles ~WNW of town of Ocotillo in Imperial County. 529 Comment
  SD250662  Psorothamnus spinosus Jon Rebman, J. LaGrange, W. Schmidtmann, & J. Emming 2014-9-24 28734 Imperial Milpitas Wash just west of Hwy 78; south of Palo Verde & south of the Palo Verde Mountains; in the sandy wash just south of Milpitas Wash Road 132 Comment
  SD256572  Psorothamnus spinosus Mary Jo Churchwell 2012-11-27 683 San Diego Anza-Borrego Desert State Park; Mine Wash Road; 1.48 miles SW of junction with Highway 78 at Indian Village Site. 474 Comment
  SD256573  Psorothamnus spinosus Diana Lindsay 2009-6-8 78 San Diego Anza-Borrego Desert State Park; NE of Clark Dry Lake; 3.17 miles SW of Villager Peak; W of tamarisk dune, W side Santa Rosa Mountains, abt 4.6 mi NNE of junction Rockhouse Cyn Rd and Borrego Salton Seaway (S22) 163 Comment
  SD262070  Psorothamnus spinosus Jon Rebman, SDNHM Botany volunteers 2017-3-17 32494 San Diego Anza-Borrego Desert State Park: east of Sweeny Pass Rd. (S2) between Canebrake and Ocotillo; north of Mortero Canyon Road in a large, wide granitic arroyo 292 Comment
  SD33130  Psorothamnus spinosus Lawrence M. Huey 1944-6-25 Imperial Mountain Springs Grade. (IPB 10/07) Comment
  SD37840  Psorothamnus spinosus Edith A. Purer 1933-3-25 4984 San Diego Borrego Valley Comment
  SD37841  Psorothamnus spinosus Edith A. Purer 1934-3-18 5655 Imperial Shore of Colorado River, north of Yuma, near Picacho Mine Comment
  SD37842  Psorothamnus spinosus Jack Rempel 1931-4-11 Riverside Colorado Desert Comment
Read comments
Jul 11 2010
  SDSU18172  Psorothamnus spinosus Judy Newhauser 1982-4-24 San Bernardino Bullion Wash, MCAGCC, Twentynine Palms, CA 242 Comment
  SDSU5214  Psorothamnus spinosus Joan Godsil 1953-1-18 555 Riverside Joshua Natioanl Monument, 29 Palms To Cottonwood Highway. 625 Comment
  SDSU5215  Psorothamnus spinosus D. R. Harvey 1931-6-20 983 San Bernardino Beyond Needles. Comment
  SDSU95  Psorothamnus spinosus R. C Schwenkmeyer 1953-5-24 San Diego Yaqui well Comment
  SEINET1004216  Psorothamnus spinosus Sarah J. De Groot 2004-1 4282 San Bernardino Whipple Mountains: Chemehuevi Wash between powerline road and Lake Havasu. 196 Comment
  SEINET1004534  Psorothamnus spinosus A. C. Sanders, Mitch Provance, Petra Wester 2004-1 28058 San Bernardino Mojave Desert: Agros Wash, just north of Old National Trails Highway ca. 8 km west of Ludlow, SE of Sleeping Beauty Mountain. 604 Comment
  SEINET10389904  Psorothamnus spinosus A. C. Sanders, Jim Malusa, Marc A. Baker, Michelle Cloud-Hughes 2016-3-15 42212 Imperial Chocolate Mountains, c. 0.8 km NE of Beal Well and c. 0-0.4 km east of old Niland-Blythe Rd. 442 Comment
  SEINET1100109 Image available Psorothamnus spinosus A. C. Sanders 1995-5-23 17119 Riverside Colorado Desert, Coachella Valley, alluvial fans below Santa Rosa Mts., near mouth of Martinez Canyon at end of 72nd. Ave. 25 Comment
  SEINET13373614 Image available Psorothamnus spinosus Victor Duran 1933-1 3499 Riverside Coachella Valley at Deep Canyon 244 Comment
  SEINET1906919  Psorothamnus spinosus Sarah J. De Groot 2003-1 3109 San Bernardino Whipple mountains: West Well, near Chemehuevi Wash. 224 Comment
  SEINET1908251  Psorothamnus spinosus Sarah De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-1 2661 San Bernardino Whipple Mountains: SE side along aqueduct road, SW of Bowman's wash. Up the side wash. 408 Comment
  SEINET1908261  Psorothamnus spinosus Sarah De Groot, Angela Gatto 2003-1 2563 San Bernardino Whipple Mountains: Bowman's wash near intersection with Parker Dam road and crossroads. West end crossroads OHV area. Gravelly slope on SE side of wash. 123 Comment
  SEINET1909610  Psorothamnus spinosus Sarah J. De Groot, Angela Gatto 2003-1 3114 San Bernardino Whipple Mountains: Chemehuevi Indian Reservation (permit 21 July 2003). Along powerline road between Havasu Palms and Havasu Lake; near Colorado River. 136 Comment
  SEINET1909788  Psorothamnus spinosus Sarah J. De Groot 2003-1 3074 San Bernardino Whipple Mountains: Vidal Wash, along Highway 95 between Vidal and San Bernardino county line. 155 Comment
  SEINET2063853 Image available Psorothamnus spinosus G. Helmkamp, E. Helmkamp 1995-6-30 95 -331 San Bernardino Kelbaker Rd. 1.5 mi N of old US 66, NE of Amboy 396 Comment
  SEINET2077461  Psorothamnus spinosus J. Beasley 1994-6-12 1007 San Bernardino I-40 between Needles and Barstow, rest area near Goffs Rd. Comment
  SEINET3002942  Psorothamnus spinosus G. Goodwin 2011-11-29 3237 San Bernardino South of Needles, 5 Mile Road exit at I-40, adjacent to the railroad tracks 180 Comment
  SEINET3240131  Psorothamnus spinosus Bill Sullivan 2008-1 505 San Diego Anza-Borrego Desert State Park, 18 mi E of Borrego Springs, County Road S-22 (Borrego Salton Seaway) Ella Wash, 0.5 mile south of Coachwhip Canyon. 356 Comment
  SEINET3407717 Image available Psorothamnus spinosus L. R. Landrum 1993-5-30 7821 Imperial Ocotillo, at exit to Calexico on Hwy 8. Comment
  SEINET3407795 Image available Psorothamnus spinosus Wesley O. Griesel 1958-6-7 Riverside Colorado Desert near Palm Springs, Riverside County, California. Elevation sea level. Comment
  SEINET3407799 Image available Psorothamnus spinosus Marc A. Baker 1982-6-15 4422 Imperial Just west of Ocotillo, along freeway 8. Mojave Desert w/Larrea, Artemisia, Eriogonum. Opuntia. Comment
  SEINET4037230  Psorothamnus spinosus G. T. Manthey 1977-1 1642 Riverside 10 miles east of Mecca on road going toward Joshua Tree National Monument. Comment
  SEINET5569453  Psorothamnus spinosus Forrest Shreve 1935-1 7388 Riverside Near Indio. Comment
  SEINET6656782  Psorothamnus spinosus A. C. Sanders, Mitch Provance; Petra Wester 2004-5-30 28058 San Bernardino Mojave Desert: Argos Wash, just north of the Old National Trails Highway ca. 8 km west of Ludlow, SE of Sleeping Beauty Mountain.; 0 604 Comment
  SEINET6656792  Psorothamnus spinosus J. R. Crutchfield, R. S. Mitchell 1967-7-1 3225 San Bernardino 6 miles north of Java.; 0 Comment
  SEINET6656793  Psorothamnus spinosus John R. Crutchfield 1965-6-16 212 Riverside 25 mi N of Blythe, along the Colorado River. Off U.S. Hy. 95.; 0 Comment
  SEINET859914  Psorothamnus spinosus R. Darrow 1942-1 s.n. San Bernardino Earp, Calif. Comment
  SEINET859918  Psorothamnus spinosus Sarah J. De Groot 2004-1 4278 San Bernardino Whipple Mountains: Along small powerline road just west of Chemehuevi Indian Reservation, south of Chemehuevi Wash. 146 Comment
  SEINET859919  Psorothamnus spinosus Sarah J. De Groot, Aydee Virgen, Charles Land 2004-1 4370 San Bernardino Whipple Mountains: Along Rio Vista Dr., wash toward river. Colorado River Indian Reservation (permit 5 Feb. 2004), material not to be propagated. 109 Comment
  SEINET924126  Psorothamnus spinosus Sarah J. De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-1 2792 San Bernardino Whipple Mountains: South side of range, along Colorado River aqueduct W of Chamber's Well road 285 Comment
  SFV20615  Psorothamnus spinosus J. N. Hogue, L. H. Hogue 2006-4-14 270 .1 San Bernardino Mojave Desert Kane Wash, just east of Kane Springs. Between Newberry Mountains and Rodman Mountains. 900 Comment
  SJSU5127  Psorothamnus spinosus S. M. Kaune 1962-12-21 697 Unknown Arroyo Grane in the Sierra Pinta c. 5 mi W of Hwy 5, c. 35 mi N of San Felipe 381 Comment
  UC1073443  Psorothamnus spinosus George B. Rossbach 1955-4-26 336 Imperial .25 mi e Route 99 (by Salton Sea Beach Road w side Salton Sea, nw Imperial County); w side Salton Sea, e of Route 99 -70 Comment
  UC1129842  Psorothamnus spinosus H. S. Yates 1937-6-27 6725 Riverside mouth of Deep Canyon Thermal Quad., mouth of Deep Canyon Comment
  UC1129843  Psorothamnus spinosus H. S. Yates 1936-4-7 5432 Riverside Thousand Palms Thermal Quad., Thousand Palms Comment
  UC1129844  Psorothamnus spinosus A. E. Wieslander 1931-4-3 167 San Diego San Felipe Wash Vallecito Quad., San Felipe Wash 304 Comment
  UC1197435  Psorothamnus spinosus Arthur E. Connick June, 1928 Riverside Palm Springs Comment
  UC1220987  Psorothamnus spinosus Beecher Crampton 1962-5-23 6452 Imperial 7-8 mi w Coyote Wells (U.S. Hwy 80, Jacumba Hills); Jacumba Hills, w of Coyote Wells 304 Comment
  UC1280844  Psorothamnus spinosus H. E. McMinn 1935-6-27 4054 Riverside wash at foot Palms to Pines Highway at foot Palms to Pines Highway Comment
  UC1397072  Psorothamnus spinosus de Leon 1935-6-11 San Bernardino Needles Comment
  UC1523890  Psorothamnus spinosus James D. Morefield 1985-7-6 2761 San Bernardino 7.3 mi n 30 degrees e Essex (about 1 mi n of Interstate 40 at Fenner); Fenner Valley, ne of Essex 640 Comment
  UC154566  Psorothamnus spinosus Rensselaer J. Smith May 1904 Riverside White Water 396 Comment
  UC164878  Psorothamnus spinosus S. B. Parish 1912-6-28 8107 Riverside near Mecca (Red Canyon, Colorado Desert); Colorado Desert, near Mecca, Red Canyon Comment
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Nov 24 2011
  UC1785209  Psorothamnus spinosus L. R. Landrum 1993-5-30 7821 Imperial Ocotillo, at exit to Calexico on Hwy 8. Comment
  UC1928595  Psorothamnus spinosus LeRoy Gross, S. D. Boyd, Michael Denslow, Lisa Rojas 2003-10-21 1203 San Bernardino Mojave Desert; Northcentral Mojave Desert region; East side of the Soda Mountains; North of interstate 15, west of Baker. Along jeep trail to Blue Bell Mine. Exit Zzyzx Road. 488 Comment
  UC1970311  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4278 San Bernardino WHIPPLE MOUNTAINS: Along small powerline road just west of Chemehuevi Indian Reservation, south of Chemehuevi Wash. Comment
  UC1970413  Psorothamnus spinosus Sarah J. De Groot 2003-8-26 3074 San Bernardino WHIPPLE MOUNTAINS: Vidal Wash, along Highway 95 between Vidal and San Bernardino county line. Comment
  UC370448  Psorothamnus spinosus H. E. and S. T. Parks 1929-2-10 394 Riverside Palm Springs 0 Comment
  UC372911  Psorothamnus spinosus Marcus E. Jones 1926-6-8 Riverside Palm Springs Comment
  UC403403  Psorothamnus spinosus H. E. and S. T. Parks Feb. 1929 394 Riverside below Palm Springs (along the desert edges); below Palm Springs Comment
  UC472709  Psorothamnus spinosus M. F. Spencer 1918-3-27 Riverside Palm Springs , Palm Springs (Colorado Desert) 100 Comment
  UC486464  Psorothamnus spinosus A. B. Clayton Jul 1932 73 San Diego Borego Valley Comment
  UC500974  Psorothamnus spinosus David R. Goddard 1927-6-5 1092 San Bernardino one mi w Colorado River and state line (valley of Colorado River, on Needles to Kingman Highway); w of Colorado River, Needles to Kingman Highway Comment
  UC52157  Psorothamnus spinosus E. E. Schellenger July 25 1903-Aug 14, 1903 3 Riverside Chuckawalla Bench, Colorado Desert Comment
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Aug 27 2016
  UC52159  Psorothamnus spinosus E. E. Schellenger July 25 1903-Aug 14, 1903 2 Riverside Chuckawalla Bench, Colorado Desert Comment
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Aug 27 2016
  UC534841  Psorothamnus spinosus Victor Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Canyon 243 Comment
  UC575036  Psorothamnus spinosus C. Epling, L. Ellison 1933-6-24 Riverside near Palm Springs (near Cathedral City); , near Palm Springs Comment
  UC626094  Psorothamnus spinosus Annie M. Alexander 1939-6-26 843 San Bernardino w Baker; w of Baker Comment
  UC717821  Psorothamnus spinosus David R. Goddard 1927-6-5 1092 San Bernardino one mi w Colorado River Bridge (on Santa Fe Trails Highway, near Needles); w of Colorado River Bridge, near Needles 152 Comment
  UC770003  Psorothamnus spinosus Annie M. Alexander and Louise Kellogg 1940-4-28 1253 San Bernardino Wash, Whipple Mountains, (North) 289 Comment
  UC863838  Psorothamnus spinosus R. Darrow 1942-6-2 San Bernardino Earp Comment
  UC863839  Psorothamnus spinosus Rimo Bacigalupi 1924-7-12 503 San Bernardino near Amboy (Mojave Desert); , near Amboy Comment
  UC945498  Psorothamnus spinosus Howard Scott Gentry 1938-7-6 3789 Riverside Coachella Valley Comment
  UCD108380  Psorothamnus spinosus F. R. Lawson 1929-12-10 21 -6 San Bernardino Needles. Comment
  UCD108382  Psorothamnus spinosus Victor Duran 1933-7-3 3499 Riverside Coachella Valley at Deep Canyon. 243 Comment
  UCD108387  Psorothamnus spinosus F. R. Lawson 1929-12-10 s.n. San Bernardino 34 miles southwest Needles. Comment
  UCD108388  Psorothamnus spinosus Guthrie Collins 1939-4-10 s.n. San Bernardino Needles. Comment
  UCD108389  Psorothamnus spinosus A. C. Sanders; Mitch Provance, Petra Wester 2004-5-30 28093 San Bernardino Mojave Desert: SE end of Bristol Mountains, 4 miles ENE of Amboy. 235 Comment
  UCD108390  Psorothamnus spinosus Beecher Crampton 1962-5-23 6452 Imperial Imperial County, Jacumba Mountains, 7-8 miles west of Coyote Wells, along U.S. Highway 80. Comment
  UCD108391  Psorothamnus spinosus Richard Bates 1949-4-26 s.n. Riverside Cathedral City. Comment
  UCD34520  Psorothamnus spinosus Beecher Crampton 1985-5-8 9964 Riverside Riverside County, west of Blythe along hwy. 10. Comment
  UCD37951  Psorothamnus spinosus Beecher Crampton 1962-5-23 6452 Imperial Imperial County, Jacumba Mountains, In-Ko-Pa Gorge, 7-8 miles west of Coyote Wells, along U.S. Highway 80, Colorado Desert. 304 Comment
  UCD84489  Psorothamnus spinosus Chuck Hughes 2010-6-15 150 Riverside About 70 feet north of Highway 62, between the highway and railroad tracks. Tree is barely inside San Bernardino County boundary by less than 30 feet. 285 Comment
  UCR127852  Psorothamnus spinosus A. C. Sanders, Mark A. Elvin 2003-10-5 27285 San Bernardino Southern Mojave Desert, large wash southeast of Dale Dry Lake, south side of Hwy 62 just west of Ironage Rd. 410 Comment
  UCR130050  Psorothamnus spinosus George K. Helmkamp, E. A. Helmkamp 1998-6-27 4106 Riverside Coachella Valley., Along Calif. Hwy 74 at the south end of Palm Desert 290 Comment
  UCR134731  Psorothamnus spinosus June Latting 1958-4-6 284 San Bernardino Mojave Desert, Old Dale Road, 8 miles southeast of 29 Palms 488 Comment
  UCR135923  Psorothamnus spinosus A. C. Sanders, Mitch Provance, Petra Wester 2004-5-30 28058 San Bernardino Mojave Desert, Argos Wash, just north of the Old National Trails Highway c. 8 km west of Ludlow, SE of Sleeping Beauty Mountain 604 Comment
  UCR135926  Psorothamnus spinosus A. C. Sanders, Mitch Provance, Petra Wester 2004-5-30 28093 San Bernardino Mojave Desert, SE end of Bristol Mountains, 4 miles ENE of Amboy 235 Comment
  UCR145447  Psorothamnus spinosus A. C. Sanders, Mark A. Elvin 2004-10-10 28950 San Bernardino Southern Mojave Desert, south end of the Sheephole Mtns. along Hwy 62, 2.8 miles west of Clarks Pass, 26.2 miles east of Utah Trail in Twentynine Palms 530 Comment
  UCR168629  Psorothamnus spinosus Sarah J. De Groot, A. Gatto 2003-7-18 3044 San Bernardino Sonoran (Colorado) Desert, WHIPPLE MOUNTAINS: Along Highway 95 between Chemehuevi Wash and Vidal Junction 351 Comment
  UCR168638  Psorothamnus spinosus Sarah J. De Groot 2004-5-8 4278 San Bernardino (Sonoran) Colorado Desert, WHIPPLE MOUNTAINS: Along small powerline road just west of Chemehuevi Indian Reservation, south of Chemehuevi Wash 146 Comment
  UCR168667  Psorothamnus spinosus Sarah J. De Groot 2003-8-26 3074 San Bernardino Sonoran (Colorado) Desert, Whipple Mountains, Vidal Wash, along Hwy 95 between Vidal and San Bernardino county line 155 Comment
  UCR17096  Psorothamnus spinosus Anonymous 1969-5-24 s.n. Imperial Sonoran (Colorado) Desert, 10 mi. up Ogilby Rd to north of turnoff from Hwy 8 734 Comment
  UCR177848  Psorothamnus spinosus Marisa Sripracha, K. A. Boyd 2004-2-14 034 Riverside Sonoran (Colorado) Desert, Myoma, on the Thousand Palms Preserve, near the palm oasis just off Thousand Palms Drive 190 Comment
  UCR18979  Psorothamnus spinosus John C. Roos 1965-6-23 s.n. Riverside Coachella Valley, N of Indio Comment
  UCR198291  Psorothamnus spinosus LeRoy Gross, Steve Boyd, Michael Denslow, Lisa Rojas 2003-10-21 1203 San Bernardino Northcentral Mojave Desert, East Cronise Dry Lake, west of Baker, off Basin Road from Hwy I-15, north side of hwy 331 Comment
  UCR212581  Psorothamnus spinosus Bill Sullivan 2008-6-17 513 San Diego Borrego Springs, Rango Way, 0.2 mi northwest of intersection with Yaqui Pass Road. Square: G25 154 Comment
  UCR212610  Psorothamnus spinosus Bill Sullivan 2008-6-10 505 San Diego Anza-Borrego Desert State Park, 18 mi east of Borrego Springs, intersection of Borrego Salton Seaway (County Road S-22) and Ella Wash, 0.5 mi south of Coachwhip Canyon. Square: F28 356 Comment
  UCR212639  Psorothamnus spinosus Bill Sullivan 2008-6-10 508 San Diego Anza-Borrego Desert State Park, Borrego Springs, along County Road S-22 (Montezuma Valley Road), 1 mi southwest of junction with Borrego Palm Canyon Drive. Square: G23 270 Comment
  UCR21499  Psorothamnus spinosus Don Emery 1980-6-11 s.n. San Bernardino NW Colorado Desert, Iron Mtn., wash on the west side just north of the Colorado River Aqueduct 335 Comment
  UCR215431  Psorothamnus spinosus Jim Andre 2009-6-17 10757 San Bernardino Mojave Desert, Broadwell Lake Basin, along transmission line road c. 5 miles east of Cady Peak, 3 mi. west of Crucero Rd. 614 Comment
  UCR245830  Psorothamnus spinosus Jim Andre, G. L. Clifton 2011-12-1 20571 San Bernardino Northern Sonoran (Colorado) Desert, NW end of Chemehuevi Mountains, 1.9 miles east of Hwy 95, 10.5 mi. south of Needles (at I-40) 354 Comment
  UCR247326  Psorothamnus spinosus Kristin Forgrave, Sarah J. De Groot 2013-6-5 15 San Bernardino Sonoran (Colorado) Desert, Colorado River Valley; Chalk Canyon in Chemehuevi Valley on powerline road 243 Comment
  UCR249817  Psorothamnus spinosus T. B. Salvato, Tim Thomas 2012-10-18 7250 Imperial Sonoran (Colorado) Desert, Chuckwalla Bench, south of the Chuckwalla Mountains, upper drainage of Arroyo Seco, 4.7 km west of Rainey Well, 0.14 km north of the old Niland-Blythe Road, 1.34 km south of the Bradshaw Trail 604 Comment
  UCR255096  Psorothamnus spinosus Joe Barth 2011-5-25 1586 San Diego Peninsular Range/Sonoran (Colorado) Desert, BLM land; Canebreak Wash, 2.6 miles east of summit of Red Top, c. 20 miles WNW of town of Ocotillo in Imperial Co. Atlas square: O26 529 Comment
  UCR259288  Psorothamnus spinosus Jim Andre 2012-5-23 22364 San Bernardino Mojave Desert, along Amboy Road, 0.7 mi south of Sheephole Pass at sandy wash crossing 652 Comment
  UCR259289  Psorothamnus spinosus Jim Andre 2012-5-23 22363 San Bernardino Mojave Desert, along Kelbaker Road, 4.2 mi south of Hwy I-40 freeway, west end of Marble Mountains 625 Comment
  UCR259290  Psorothamnus spinosus Jim Andre 2012-5-23 22365 San Bernardino Southern Mojave Desert, along Hwy 62, 4.5 mi west of town of Twentynine Palms 798 Comment
  UCR263750  Psorothamnus spinosus Kristin Forgrave, April Garbat 2013-5-15 007 San Bernardino East Mojave Desert, Chemehuevi Wash, BLM Power Line Road (056) in a 243 Comment
  UCR263753  Psorothamnus spinosus Kristin Forgrave, Sarah J. De Groot 2013-6-5 016 San Bernardino East Mojave Desert, Hwy 95 north of Lobecks Pass near gas pipeline along side of the road 474 Comment
  UCR264805  Psorothamnus spinosus Jon P. Rebman, J. LaGrange, Warren Schmidtmann, J. Emming 2014-9-24 28734 Imperial Sonoran (Colorado) Desert, Milpitas Wash just west of Hwy 78; south of Palo Verde and south of the Palo Verde Mountains; in the sandy wash just south of Milpitas Wash Road 133 Comment
  UCR267427  Psorothamnus spinosus Jim Andre 2013-10-11 29616 San Bernardino Eastern Mojave Desert; Bristol Mountains, dirt road to base of range, 4.4 mi north of Hwy 66, National Trails Hwy, 0.5 mi west of Kelbaker Road 490 Comment
  UCR269830  Psorothamnus spinosus A. C. Sanders, Jim Malusa, Marc A. Baker, Michelle Cloud-Hughes 2016-3-15 42212 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, c. 0.8 km NE of Beal Well and c. 0-0.4 km east of old Niland-Blythe Rd. 442 Comment
  UCR33594  Psorothamnus spinosus Sears 1977-10-10 540 San Bernardino Eastern Mojave Desert, 2 mi SW of Essex, in Fenner Valley 503 Comment
  UCR38834  Psorothamnus spinosus J. C. Aulenbrock 1985-6-26 105 San Bernardino S side of Clarks Pass, S end of the Sheep Hole Mtns Comment
  UCR43997  Psorothamnus spinosus James D. Morefield 1985-7-6 2761 San Bernardino Eastern Mojave Desert, 7.3 mi N 30 deg. east of Essex about 1 mi north of interstate 40 at Fenner 640 Comment
  UCR6542  Psorothamnus spinosus Larry Lane 1967-7-14 s.n. San Bernardino Eastern Mojave Desert, along the highway 8 miles southwest of Essex 475 Comment
  UCR68485  Psorothamnus spinosus B. G. Pitzer 1991-7-24 1813 San Bernardino Mojave Desert, 29 Palms Marine Corps Base, 'Gays Pass' Artillery Range, just south of north boundary of range, c. 3.5 air km north of Gays Pass and 4.25 air km east of (& slightly S of) Argos Mtn. 915 Comment
  UCR86207  Psorothamnus spinosus A. C. Sanders 1995-5-23 17119 Riverside Sonoran (Colorado) Desert, Coachella Valley, alluvial fans below the Santa Rosa Mountains, near the mouth of Martinez Canyon, at end of 72nd Avenue 25 Comment
  UCR99810  Psorothamnus spinosus B. G. Pitzer 1996-11-11 2933 Riverside Sonoran (Colorado) Desert, Orocopia Mts: Salt Creek Wash, at intersection w/ SR211, 4 rd. mi. south of Bob's Cabin 274 Comment
  UCSB10491  Psorothamnus spinosus Ralph, F. 1959-5-17 Riverside Along side Hwy. 74 between Palm Desert and Cathedral City, 0.3 miles east of Cathedral City limits 152 Comment
  UCSB11480  Psorothamnus spinosus Dearing, Hugh; Dearing, Margaret 1940-6-8 Riverside Near Palm Springs Comment
  UCSB11923  Psorothamnus spinosus Rensselaer, Maunsell 1945-11-18 Riverside Colorado Desert, dry wash S of Cathedral City Comment
  UCSB3063  Psorothamnus spinosus Haller, Norman 1953-5-24 Riverside 3 1/2 miles S of Palm Springs Indio Rd., on Palms to Pines Hwy. 74 152 Comment
  UCSB3065  Psorothamnus spinosus Keator, Glenn 1959-5-17 Riverside West edge of Colorado Desert between Palm Desert and Palm Springs Comment
  UCSB3066  Psorothamnus spinosus Haller, John 1950-5-21 Riverside Coachella Valley, 2 miles up Palms to Pines Highway, near base of mountains Comment
  UCSB3067  Psorothamnus spinosus DeWitt, Jack 1959-5-19 Riverside One mile S on Cathedral City on road to Palm Springs from Palm Desert Comment
  UCSB33255  Psorothamnus spinosus Miller, Brian 1963-6-1 Riverside Powerline access road 4 mi. S of Curtis Palms 24 Comment
  UCSB52976  Psorothamnus spinosus Fulton, Michelle 1986-3-9 San Diego Off County Road S-2 ca. 30 mi. SE of Borrego Palm Canyon 304 Comment
  VVC3070  Psorothamnus spinosus Tim Thomas 2015-4-19 6561 San Bernardino Mojave Desert, Johnson Valley, mid Iron Hills on south side. 986 Comment
  A369250  Psorothamnus spinosus R. H. Peebles 1929-6-18 1 Unknown Colorado Desert Comment
  A369257  Psorothamnus spinosus M. D. Clary 1931-6-20 286 Unknown Coral Reef Ranch, Coachella Valley, Colorado Desert Comment
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Jun 13 2012
  CAS-BOT-BC340928  Psorothamnus spinosus Jean L. Pawek 1964-9-23 633 San Diego Borrego Campground, Anza Borrego Desert State Park Comment
  CAS-BOT-BC340935  Psorothamnus spinosus R. H. Peebles 1929-6-18 1 Imperial Colorado Desert Comment
  CAS-BOT-BC340943  Psorothamnus spinosus E. A. McGregor 1917-6-9 1616 Imperial Colorado Desert. Govt Well Comment
  GH369243  Psorothamnus spinosus Mary Beal 1931-5-30 Unknown Soda Lake Mts., near Baker road sta. Mohave [Mojave] Desert Comment
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Jul 17 2012
  JEPS41646  Psorothamnus spinosus Marjorie D. Clary 1934-4-29 San Diego wash on w side Colorado Desert Colorado Desert Comment
  RSA404266  Psorothamnus spinosus Unspecified 1935-05 s.n. Unknown Desert near Salton Sea. Comment
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Apr 8 2011
  RSA404276  Psorothamnus spinosus Anstruther Davidson 114 San Diego Colorado Desert [San Diego, Riverside, and San Bernardino counties]. Comment
  RSA404278  Psorothamnus spinosus Bonnie C. Templeton 1933-7-4 s.n. San Diego San Felipe Canyon, near Borego Palms. Comment
  RSA91439  Psorothamnus spinosus F. W. Peirson 1921-4-13 568 Riverside Deep Canyon Wash, about 12 miles SE of Palm Springs. 152 Comment
  RSA91440  Psorothamnus spinosus Kate Merrell 1929-6-4 8410 Riverside E of Oasis, Colorado Desert, Comment
  RSA9418  Psorothamnus spinosus Carl B. Wolf 1928-6-23 2278 Imperial 5 miles west of Coyote Wells. Loose rocky canyon to San Diego. 390 Comment
  SDSU266  Psorothamnus spinosus Vinnie B. Clark 1932-6-5 San Diego Oasis, W. Colorado Desert Comment
  SEINET12155967  Psorothamnus spinosus E. A. Purer 1934-1 5655 Imperial Shore of Colorado River, N of Yuma, near Picacho Mine Comment
  SEINET12155968  Psorothamnus spinosus Unknown 1936-1 12795 Riverside Colorado Desert N of Palm Springs Comment
  SEINET12155969  Psorothamnus spinosus Unknown 1882-1 22 Calaveras Vallecito Comment
  SEINET12155970  Psorothamnus spinosus Unknown 1952-1 s.n. Unknown Colorado Desert Comment
  SEINET12159092  Psorothamnus spinosus C. L. Abbott 1926-1 s.n. Unknown Salton Sea Comment
  SEINET13373578 Image available Psorothamnus spinosus Leila M. Shultz, John S. Shultz 1985-1 8281 Riverside Gravel benches on north side of the Chuckawalla Mountains 183 Comment
  SEINET13373593 Image available Psorothamnus spinosus L. A. Stoddart, Arthur Smith 1939-1 San Bernardino 10 miles west of Baker Comment
  SEINET13373601 Image available Psorothamnus spinosus W. P. Cottam 1951-1 12665 Unknown Needles 457 Comment
  UC489179  Psorothamnus spinosus C. V. Meyer 1928-5-25 409 Unknown Colorado Desert, South Oasis (10 mi?) Comment
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Mar 8 2013
  UC81837  Psorothamnus spinosus A. W. Anthony April 1894 San Diego Colorado Desert Comment
  UCSC000915  Psorothamnus spinosus Peter Kamb 1946-8-27 364 San Bernardino Mojave Desert near Cadiz, 50 mi west of Needles Cadiz, Needles 305 Comment



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