CHECK ALL F ? CCH1_AID herb scientific name coll. name coll. num. formatted date county locality AHUC038640 DAV Hilaria rigida Beecher Crampton 2625 1955-4-27 San Bernardino San Bernardino County, 6.5 miles south of Daggett. AHUC039163 DAV Hilaria rigida Beecher Crampton 2574 1955-4-25 San Bernardino San Bernardino County, 2.5 miles west of Daggett, 1 mile east of Marine Corps Depot, along U.S. Highway 66. AHUC041142 DAV Hilaria rigida Beecher Crampton 6465 1962-5-23 Imperial Imperial County, 4.2 miles west of Plaster City, along U.S. Highway 80. AHUC042743 DAV Hilaria rigida Beecher Crampton 7960 1967-5-23 San Bernardino San Bernardino County, Mojave Desert, 31 miles west of Baker on US Hwy. 466, near midway ca. 5 miles west of Mt. Afton. AHUC12151 DAV Hilaria rigida H. S. Reed 9841 1937-5-05 San Bernardino San Bernardino County: Cronise Valley, Mohave Desert. AHUC13485 DAV Hilaria rigida R. Tofsrud s.n. 1951-4-27 Imperial Imperial County: 5 N of Niland. AHUC13486 DAV Hilaria rigida B. A. Madson s.n. 1947-9-15 Riverside Riverside County: East side of San Jacinto Mts. Between Palm Springs and Idyllwild. AHUC13487 DAV Hilaria rigida R. Tofsrud s.n. 1949-4-28 San Diego San Diego County: Hwy. 78, Anza Desert State Park. AHUC13488 DAV Hilaria rigida R. Tofsrud s.n. 1949-4-28 San Diego San Diego County: Hwy. 78, Anza Desert State Park. AHUC13489 DAV Hilaria rigida Collector Unknown s.n. 1951-10-01 San Bernardino San Bernardino County: Lucerne Valley. AHUC21215 DAV Hilaria rigida Beecher Crampton 2574 1955-4-25 San Bernardino San Bernardino County: U.S. Highway 66, 2.5 miles west of Daggett. AHUC21220 DAV Hilaria rigida Beecher Crampton 2625 1955-4-27 San Bernardino San Bernardino County: 6.5 miles south of Daggett. AHUC21991 DAV Hilaria rigida Philip A. Munz 14997 1937-6-18 San Bernardino San Bernardino County: pass at Clark Mt., on highway from Las Vegas to Baker. AHUC22940 DAV Hilaria rigida Annetta Carter 3235 1953-4-05 San Bernardino San Bernardino County: 20 miles south of Needles. AHUC24606 DAV Hilaria rigida E. K. Balls 22925 1958-3-20 Imperial Imperial County: 3.7 miles north of Ogilby on road to Blythe. AHUC25757 DAV Hilaria rigida H. S. Yates 6442 1937-3-23 Riverside Riverside County: 15 miles N. N. E. of Mecca. AHUC25985 DAV Hilaria rigida James B. Garner USD-1 1959-4-20 Riverside Riverside County: 6 miles west of Elyth. AHUC25986 DAV Hilaria rigida James B. Garner USD-1 1959-4-20 Riverside Riverside County: 6 miles west of Elyth. AHUC26843 DAV Hilaria rigida Peter Kamb 1070 1948-5-31 San Bernardino San Bernardino County: Cushenbury Springs. San Bernardino Mountains. AHUC27626 DAV Hilaria rigida Peter H. Raven 12931 1958-5-06 Riverside Riverside County: 10.2 miles southwest of Palm Desert on State Highway 74. San Jacinto Mountains. AHUC27675 DAV Hilaria rigida Peter H. Raven 11918 1958-3-22 San Bernardino San Bernardino County: 5.3 miles east of Mount Afton. AHUC28851 DAV Hilaria rigida G. Thomas Robbins 3432 1952-4-19 San Bernardino San Bernardino County: along U.S. Highway 91, about 1 mile west of Cronese (Cronese Valley), Mohave Desert. AHUC29129 DAV Hilaria rigida Beecher Crampton 6465 1962-5-23 Imperial Imperial County: 4.2 miles west of Plaster City, along U.S. Highway 80. AHUC32308 DAV Hilaria rigida Rimo Bacigalupi 6137 1958-2-17 Imperial Imperial County: 1.5 miles south of Gold Rock Ranch, on road from Ogilby to Blythe, by way of Midway Well, Colorado Desert. AHUC33558 DAV Hilaria rigida Beecher Crampton 7986 1967-5-23 San Bernardino San Bernardino County: Mojave Desert, 5.4 miles east of Mtn. Pass summit, US Hwy 466, at Nipton Road junction. AHUC33566 DAV Hilaria rigida Beecher Crampton 7960 1967-5-23 San Bernardino San Bernardino County: Mojave Desert, 31 miles west of Baker on US Hwy. 466, near midway ca. 5 miles west of Mt. Afton road. AHUC34558 DAV Hilaria rigida Beecher Crampton 8324 1968-8-11 San Bernardino Eastern San Bernardino County: 2 miles E of Mountain Pass, near Wheaton Springs, Interstate Hwy. 15, Mescal Range. AHUC5665 DAV Hilaria rigida Collector Unknown 1934-11-01 ? UnknownCalifornia: county unknown. Sent to Davis from S. California. AHUC5666 DAV Hilaria rigida Katherine Brandegee s.n. 1996-10-19 Imperial Imperial County: Colorado Desert. AHUC5668 DAV Hilaria rigida Collector Unknown s.n. 1994-4-9 ? UnknownCalifornia: County unknown. AHUC5669 DAV Hilaria rigida A. H. Shunk 6 1923 San Bernardino San Bernardino County: Cima. AHUC5670 DAV Hilaria rigida Katharine Brandegee s.n. 1915-6-01 San Bernardino San Bernardino County: Kelso. AHUC7105 DAV Hilaria rigida A. A. Beetle 3192 1942-4-23 San Bernardino San Bernardino County: Rt. 95, 38 miles north of Blythe. AHUC7106 DAV Hilaria rigida A. A. Beetle 3183 1942-4-22 Riverside Riverside County: Rts. 60 and and 0 (sic), 5 miles east of Shavers Summit. AHUC7107 DAV Hilaria rigida A. A. Beetle 3174 1942-4-22 Imperial Imperial County: junction of Rt. 80 and road to Ogilby. AHUC7108 DAV Hilaria rigida A. A. Beetle 2302 1942-4-23 San Bernardino San Bernardino County: Rt. 66, 12 miles west of Ludlow. AHUC8282 DAV Hilaria rigida R. M. Love s.n. 1942-10-08 San Bernardino San Bernardino County: 15 miles northwest of Indio. AHUC9605 DAV Hilaria rigida Victor Duran 3199 1932-5-12 San Diego San Diego County: head of Box Canon, near Mason Valley. BSCA3038 BSCA Hilaria rigida Hendrickson, Larry 554 2005-4-27 San Diego Anza-Borrego Desert State Park. Grave Wash at the SE end of the Santa Rosa Mountains in California State Wilderness. Approx. 5.0 miles WSW of Imperial Co. Hwy 86 at the Grave Wash overpass bridge. 300 ft. west of County line/Park boundary. BSCA3442 BSCA Hilaria rigida Rebman, Jon 14387 2008-4-8 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 18 (SL18), small arroyo off of Grave Wash, Site LARTRI in arroyo bottom and surrounding cliff walls. BSCA5202 BSCA Hilaria rigida Rebman, Jon P. 14251 2008-3-12 San Diego Anza-Borrego Desert State Park: east of Borrego Springs; just west of the Imperial/San Diego county border on the north side of Hwy. S22/Borrego Salton Seaway; along the Calcite Mine road BSCA5203 BSCA Hilaria rigida Rebman, Jon P. 25507 2013-2-10 San Diego Anza-Borrego Desert State Park: Split Mountain area; to the southwest of the Wind Caves and west of Elephant Knees area; along Fish Creek Wash BSCA5204 BSCA Hilaria rigida Marsden, Kim 261 2008-3-20 San Diego Anza-Borrego State Park, 6.5 mi ESE of town of Borrego Springs, 300 meters SE of San Gregorio monument along Borrego Sink Wash, 3.8 NNE of intersection Borrego Springs Road and Fletcher Road BSCA5205 BSCA Hilaria rigida Rebman, Jon P. 16328 2009-3-11 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 5 (SP5), Verbena Wash, Site HIBDEN in rocky arroyo and surrounding rocky hillsides BSCA5206 BSCA Hilaria rigida Barth, Joe 914 2010-3-6 San Diego Anza-Borrego Desert State Park: the sw part of the South Mesa (north and east of the Carrizo Badlands). Ca. 0.3 mile to the east of the canyon drainage called Arroyo Seco del Diablo. Ca. 2 miles N of Carrizo Creek. Ca.2.8 miles west of the county line. BSCA5207 BSCA Hilaria rigida Rebman, Jon P. 14575 2008-4-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 8 (SL8), in Big Wash, Site PHACRE in arroyo bottom and surrounding embankments. BSCA5208 BSCA Hilaria rigida Rebman, Jon P. 14525 2008-4-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 7 (SP7), in Big Wash Middle, Site ESCPAR in arroyo bottom and surrounding embankments BSCA5209 BSCA Hilaria rigida Rebman, Jon P. 16246 2009-3-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 19 (SP19), Palm Wash, Site HILRIG in sandy arroyo with desert pavement benches on the surrounding embankments. BSCA5210 BSCA Hilaria rigida Rebman, Jon P. 16396 2009-3-11 Imperial Freeman Properties (Truckhaven) - Desert Cahuilla: West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 4 (SL4), Verbena Wash, Site FAGPAC in rocky arroyo and surrounding rocky hillsides & mesa. BSCA5211 BSCA Hilaria rigida Hendrickson, Larry 3599 2009-3-30 San Diego Anza-Borrego Desert State Park. Rockhouse Canon, a major tributary of Carrizo Wash in the In-Ko-Pah Mountains. 2.7 miles S of intersection of County Road S-2 and Carrizo Wash jeep trail. BSCA5212 BSCA Hilaria rigida Rebman, Jon P. 16147 2009-3-9 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 20 (SL20), Palm Wash, Site BRATOU in sandy arroyo bottom and surrounding rocky mud embankments. BSCA5213 BSCA Hilaria rigida Barth, Joe 1392 2011-4-13 San Diego Anza Borrego Desert State Park's Volcanic Hills area. Mortero Canon. 1.2 mile due W of Imperial County line. 2.3 miles due S of Hiway S2, 9.3 miles due N of Frwy I8. BSCA5214 BSCA Hilaria rigida Barth, Joe 1277 2011-4-4 San Diego Jojoba Wash, Anza-Borrego Desert State Park. 2.25 miles due S of Hwy S2, 11 miles due N of Freeway I8, 3.8 miles due W of Imperial county line. Bajada WNW of the Volcanic Hills. BSCA5215 BSCA Hilaria rigida Merkel, Dalton (Mike) 326 1964-3-1 San Diego Borrego Palm Canon area. Widespread throughout the Park. BSCA5216 BSCA Hilaria rigida Smith 242 1961-9-1 San Diego Blair Valley, on gravel slopes. CAS-BOT177173 CAS Hilaria rigida DeGroot, Sarah J.; Gatto, Angela 2458 2003-4-20 San Bernardino Whipple Mountains: Old road heading west from Copper Basin, off Bowman's wash road Elev. given as 1380ft. CAS-BOT177356 CAS Hilaria rigida De Groot, Sarah J.; Lubinsky, Leland 4466 2004-10-16 San Bernardino Whipple Mountains: Ridge S of middle fork of Whipple Wash, NE of large dark bluff Elev. given as 2080ft. CAS-BOT227256 CAS Hilaria rigida Sanders, A. C.; Howald, A. 38604 2010-9-21 Inyo Northeastern Mojave Desert: Pahrump Valley, east of the Nopah Range and NE of Calvada Springs, State Line Rd. 1.9 miles north of Old Spanish Trail Hwy Elev. given as 2655 ft. CAS-BOT247106 CAS Hilaria rigida De Groot, Sarah J.; LaDoux, Tasha 2916 2003-5-20 San Bernardino Whipple Mountains: Hills between War Eagle Mine and summit ridge Elev. given as 1703 ft CAS-BOT247108 CAS Hilaria rigida De Groot, Sarah J.; LaDoux, Tasha 2882 2003-5-19 San Bernardino Whipple Mountains: Copper Basin Dunes OHV area near Echo Lodge, along Parker Dam road Elev. given as 392 ft CAS-BOT248866 CAS Hilaria rigida De Groot, Sarah J.; Porter, J. Mark 3212 2003-9-28 San Bernardino Whipple Mountains: Near west end of Copper Basin, upper Bowman's Wash. Along old road into BLM Wilderness area Elev. given as 1475 ft CAS-BOT248867 CAS Hilaria rigida De Groot, Sarah J.; Porter, J. Mark 3222 2003-9-28 San Bernardino Whipple Mountains: Along Highway 95 between Vidal Junction and Vidal Elev. given as 784 ft CAS-BOT289172 CAS Hilaria rigida Castagnoli, Steve; de Nevers, Greg; Stone, R. Doug 050 1980-4-23 San Bernardino Bajada above Kingston Wash, SE flank of range, 0.25 mi. N of BM 2646, Kingston Range CAS-BOT289173 CAS Hilaria rigida Roos, J. C. s.n. 1965-9-5 Riverside 18 miles w. of Blythe CAS-BOT289174 CAS Hilaria rigida Bonner, K. 60062B 1977-10-30 Riverside 7.5 mi. N. of Midland on Rice Road CAS-BOT289175 CAS Hilaria rigida Von Loh, J. 60325A 1978-1-23 Riverside Palo Verde Mesa, 12 mi. W. of Blythe CAS-BOT289176 CAS Hilaria rigida Prigge, Barry 2551 1978-4-21 San Bernardino 2.9 miles NW of Lavic near railroad crossing, Mojave Desert CAS-BOT289177 CAS Hilaria rigida De Groot, Sarah J.; Porter, J. Mark 3317 2003-10-10 San Bernardino Chute below summit of Cupcake Butte, north of Whipple Wash, Whipple Mountains CAS-BOT289178 CAS Hilaria rigida De Groot, Sarah J.; Porter, J. Mark; Machen, Lauren 3259 2003-10-9 San Bernardino Wash beside Atchison, Topeka and Santa Fe Railroad tracks just E of Vidal and Highway 95, Whipple Mountains CAS-BOT289179 CAS Hilaria rigida De Groot, Sarah J.; Fraga, Naomi 3410 2003-10-26 San Bernardino West of Copper Basin, bluff at end of road into BLM Wilderness area from Bowman's Wash, upper Whipple Wash, Whipple Mountains CAS-BOT289180 CAS Hilaria rigida Boyd, Steve; Morgan, Tammy 10683 2004-3-30 San Bernardino Southern end of the Cady Mountains northwest of Ludlow, north of Interstate 40, about hill topped with communication towers, Mojave Desert, Central Mojave Desert region CAS-BOT289181 CAS Hilaria rigida Latting, J. s.n. 1977-12-11 Imperial East side of Algodones Sand Dunes, Pilot Knob Mesa, south side of I-8 at Ogilby Road, Sonoran Desert CAS-BOT421674 CAS Hilaria rigida De Groot, Sarah J.; Cho, Grace 7014 2013-9-26 San Bernardino Northeast San Bernardino Mountains, Bighorn Mountain area: top of hill along Bighorn Mountain ridge, at summit '5641'. Elev. given as 5641 ft. CAS-BOT421677 CAS Hilaria rigida De Groot, Sarah J.; Sevilla, Cheryl 7119 2014-5-14 San Bernardino Bighorn Mountains: Along the south side of Hondo Wash, BLM road RC 1418 off the end of Tracy Blvd, west of Flamingo Heights. Northeast tip of Black Lava Butte. Elev. given as 3750 ft. CAS-BOT421678 CAS Hilaria rigida De Groot, Sarah J.; Conocchioli, Deidre; Bell, Duncan; Veguer, Perrine 7068 2014-4-16 San Bernardino Bighorn Mountains: New Dixie Mine Road (BLM RC 2330) at eastern-most big wash, southeast of Ruby Mountain, west of Landers. Elev. given as 3750 ft. CAS-BOT422339 CAS Hilaria rigida De Groot, Sarah J.; Sevilla, Cheryl 7131 2014-5-21 San Bernardino Bighorn Mountains: Bighorn Wilderness area, along road toward old mine, west of Vaughn Spring. Northwest of Pioneertown and Yucca Valley, north of Tip Top Mountain. Elev. given as 5990 ft. CAS-BOT541412 CAS Hilaria rigida De Groot, Sarah J.; Sevilla, Cheryl 7591 2015-9-29 San Bernardino Newberry Mountains; along Camp Rock Road at SW end of narrows. N of Ord Mountain an Aztec Spring, ESE of Barstow CAS-BOT541413 CAS Hilaria rigida De Groot, Sarah J.; Bell, Duncan S. 7594 2015-10-13 Riverside Santa Rosa Mountains, SSW of Palm Desert. Along Carrizo Rd just NW of Hwy 74 CAS-BOT565316 CAS Hilaria rigida De Groot, Sarah J.; Bell, Duncan S.; Gross, LeRoy 7607 2016-2-17 Riverside Santa Rosa Mountains: Slide off east side of Martinez Mountain, north of Toro Canyon, south of La Quinta, southwest of Thermal and Coachella. CAS-BOT588477 CAS Hilaria rigida De Groot, Sarah J.; Darney-Lane, Rachel 9469 2017-10-26 San Bernardino North tip of Dead Mountains, Dead Mountains Wilderness: ca. 1.4 air miles south-southeast of powerline road 9029, ca. 16.7 air miles north-northwest of Needles, ca. 1.4 air miles southwest of CA-NV state line, west of U.S. Highway 95. CAS-BOT592329 CAS Hilaria rigida De Groot, Sarah J.; Rivera, Janneth; DeGroot, David 8225 2017-3-15 San Bernardino South-central Turtle Mountains, Turtle Mountain Wilderness: ca. 1 air mile northeast of Horn Peak. West of Vidal Valley, northwest of Vidal Junction, north of Highway 62, west of Highway 95. CAS-BOT94598 CAS Hilaria rigida Wenk, R. C.; Hopkinson, P.; Hammond, M.; Brownsey, P. 699 2008-3-22 San Diego Borrego Springs. Intersection of Borrego Springs Rd and Henderson Canyon Rd. CHSC26113 CHSC Hilaria rigida James Henrickson 4208 1969-10-19 San Diego In Lower Borrego Valley along Old Kane Springs Road ca. 12 air mi. SE of Borrego Springs. CHSC30629 CHSC Hilaria rigida Sandra C. Morey 32 1980-4-05 San Bernardino Kelso Dunes, ca. 10 mi. s of Kelso. CHSC60202 CHSC Hilaria rigida J. Lund 1980-4-01 San Diego On the north-east side of Montazuma and Palm Canon Dr. in Borrego Springs. CHSC60203 CHSC Hilaria rigida J. Lund 1980-4-01 San Diego 5.0 miles north of Borrego Springs on west side of S3 Road, CHSC8211 CHSC Hilaria rigida Dave Isle 413 1969-4-28 San Bernardino HW 62 about 2 miles E. of Yucca Valley. CLARK-A1045-685 CLARK Hilaria rigida George K. Helmkamp 1978-5-06 San Bernardino Mojave Desert Kingston Road; Clark Mt 15'Q CLARK-A1045-850 CLARK Hilaria rigida George K. Helmkamp 1977-5-29 San Bernardino Mesquite Mountains Clark Mt. 15'Q CLARK-A1528-1270 CLARK Hilaria rigida C. M. McKell, N. J. Chatterton 1966-4-26 San Bernardino Colton Well CLARK-A1528-4680 CLARK Hilaria rigida John C. Roos 3298 1947-3-01 Riverside Coachella Valley CLARK-A1528-4681 CLARK Hilaria rigida John C. Roos 1965-9-05 Riverside Chuckwalla Valley CLARK-A1528-63 CLARK Hilaria rigida Edson Follett 117 1962-7-19 San Diego Canon CSUSB90770 CSUSB Hilaria rigida Wayne White 1975-5-17 Riverside Chuckwalla Mountains; On Red Cloud Road, off Highway I-10, Chuckwalla Mountains. Colorado Desert. CSUSB91933 CSUSB Hilaria rigida John Kitasako s.n. 1972-9-03 Riverside Palm Spring Alajo Site Ia Ib DAV108541 DAV Hilaria rigida William H. Brooks s.n. 1989-2-24 Riverside Riverside County: McCoy Wash, north of Blythe. DAV187779 DAV Hilaria rigida Ellen Dean 5869 2010-4-8 Imperial Imperial County: BLM Algodones Dunes Natural Area. E side of dunes. 6 N of Hwy 78, along Kipf Rd. E and W side of road. DAV189765 DAV Hilaria rigida Chuck Hughes 205 2010-3-22 Riverside Riverside County: About 9.4 miles south of Highway 62, next to railroad tracks. DAV198541 DAV Hilaria rigida C. A. Toft s.n. 1980-5-31 Inyo Inyo County: Death Valley National Monument, Harrisburg Flats. DAV218071 DAV Hilaria rigida Jack Major 790 1962-4-17 Riverside Riverside County: On Hwy 74, near Palm Desert. (Exact location unknown. Coordinates estimated by label maker.) DAV24929 DAV Hilaria rigida James B. Garner 298 1957-6-18 San Bernardino San Bernardino County: in Mojave River bed. Afton Canon, ca. 5 miles south of U.S. highway 466 and ca. 35 miles east of Barstow. DAV29197 DAV Hilaria rigida William Shapeero s.n. 1954-4-28 Riverside Riverside County: Joshua Tree National Monument. DAV4108 DAV Hilaria rigida A. A. Beetle 3174 1942-4-22 Imperial Imperial County: junction of Rt. 80 and road to Ogilby. DAV56052 DAV Hilaria rigida W. C. Gagne s.n. 1968-3-21 San Bernardino San Bernardino County: near Dale Dry Lake, 25 mi. east of 29 Palms. DAV79600 DAV Hilaria rigida Geoffrey Levin 695 1976-3-27 Riverside Riverside Co.: Chino Canon. West of Palm Springs. Alluvial fan of San Jacinto Mts. Salton Sea Basin. Colorado Desert. DAV88964 DAV Hilaria rigida Bruce M. Pavlik 212 1980-5-29 San Bernardino San Bernardino County: Kelso Dunes. GMDRC639 GMDRC Hilaria rigida B. Pitzer 3822 1998-11-14 San Bernardino Mojave Desert: Piute Mtns, 2 mi. SW of entrance to I-40 at Mountain Springs Rd, on Rte 66. 34d 49 N, 115d 04 W. 2700' GMDRC8128 GMDRC Hilaria rigida J. M. Andre 34431 2016-4-18 San Bernardino Castle Mountains: in newly designated CM National Monument; fenceline road along base of westernmost hill of mine tailings, approx. 1.5 mi. SW of Hart Mine area HSC10116 HSC Hilaria rigida C.R. Phillips sn 1964-3-26 San Diego 7 NE of Borego Springs. HSC10117 HSC Hilaria rigida C.L. Hitchcock 24216 1966-3-16 Riverside 4 mi. S of Palm Desert, along Palms to Pines Hwy. HSC10118 HSC Hilaria rigida C.L. Hitchcock 23160 1964-3-19 Imperial 3 mi. S of Ocotillo Well, on the road to Fish Creek HSC102842 HSC Hilaria rigida J.P. Smith 13,644 2012-9-14 San Bernardino Mojave National Preserve; in Cima. HSC25117 HSC Hilaria rigida James Henrickson 4208 1969-10-19 San Diego In Lower Borrego Valley, along Old Kane Rd., 12 air mi. SE of Borrego Springs. HSC27201 HSC Hilaria rigida J.P. Smith 6887 1973-6-10 Riverside Joshua Tree National Monument. HSC27308 HSC Hilaria rigida J.O. Sawyer 2479B 1973-3-25 Imperial W of Algodones Dunes 1 mile S of Glamis. HSC34760 HSC Hilaria rigida R.E. Cooksey 201 1974-3-1 Riverside Chino Canon below Palm Springs Tramway; San Jacinto Mtns. HSC35006 HSC Hilaria rigida Richard Spjut 2262 1972-3-13 Riverside Western border of the Colorado Desert ; San Jacinto Mts., near the eastern border of the San Bernardino Natl. Forest along Hwy. 74 HSC38772 HSC Hilaria rigida J.D. Ackerman 162 1974-3-27 Imperial 1 W of 1000 ft. marker, Hwy. 8. HSC58985 HSC Hilaria rigida Gilbert Muth 783 1968-3-18 San Diego Near Ocotillo Flat HSC66475 HSC Hilaria rigida Christopher Davidson 7785 1979-4-28 Imperial Off Hwy. 8 on Sidewinder Rd., 1.5 W of Pilot Knob HSC66815 HSC Hilaria rigida D. Goforth 370 1980-3-26 San Diego Anza Borrego Desert State Park, 1 N of Palm Canon Camp. HSC99874 HSC Hilaria rigida Jim Andre 13738 2010-4-23 San Bernardino Granite Mtns., Mojave National Preserve, along powerline road, 6 mi. SW of Kelso Dunes at Budweiser Wash IRVC100341 IRVC Hilaria rigida Mark A. Elvin 3802 2004-10-7 San Bernardino 7 W Emerson Dry Lake, 5.5km S Galway Dry Lake. IRVC100342 IRVC Hilaria rigida Mark A. Elvin 3293 2004-4-9 San Bernardino Ca. 1.5 miles E of Pioneertown, UC Burns Pinyon Ridge Reserve, SW portion, in North Railroad Canon. IRVC15342 IRVC Hilaria rigida D. W. Goodall s.n. 1968-4-02 Imperial 5 W of Glamis IRVC15348 IRVC Hilaria rigida D. W. Goodall s.n. 1968-4-02 Imperial 5 W of Glamis IRVC1639 IRVC Hilaria rigida R.H. Whittaker sj-233, 234 1963-6-05 Riverside Santa Rosa Mts: Palms to Pines Hwy., very base of mountains. Slope NE-30 degrees open, soil diorite-gabbro? Very rocky. Larrea-suffrutescent desert. IRVC1640 IRVC Hilaria rigida R.H. Whittaker sj-237 1963-6-05 Riverside Santa Rosa Mts: Palms to Pines Hwy., very base of mountains. Slope NE-30 degrees open, soil diorite-gabbro? Very rocky. Larrea-suffrutescent desert. IRVC1642 IRVC Hilaria rigida R.H. Whittaker sj-125 1963-6-01 Riverside Santa Rosa Mountains: Road Opposite Pinyon Flats Camp. IRVC20069 IRVC Hilaria rigida J. Powll 1329 1977-4-27 San Bernardino Dunes S of Zzyzx Springs. IRVC20155 IRVC Hilaria rigida G. Ulrich 1306 1977-4-24 San Bernardino 10 airmiles S Kelso. IRVC20416 IRVC Hilaria rigida Fred M. Roberts 976 1983-4-03 Imperial Chocolate Mtns., near Hwy S78, 1 NE Glamis IRVC26118 IRVC Hilaria rigida A.C. Sanders 27277 2003-10-5 San Bernardino along Hwy 62 east of Twentynine Palms, ca. 1 mile east of Old Dale IRVC26931 IRVC Hilaria rigida A.C. Sanders 28955 2004-10-10 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 IRVC27936 IRVC Hilaria rigida A.C. Sanders 27221 2003-10-5 San Bernardino Southern Mojave Desert: UC Burns Pinyon Ridge Reserve, south of Skyline Ranch RD. ca. 2 miles (air) ESE of Pinoneertown, 1.5 mi. (air) NW of Yucca Valley, along wash beside Burns house. IRVC5320 IRVC Hilaria rigida Shirley Cromb s.n. 1965-4-11 San Bernardino 3 mi east of Needles on rt.66 to Topock Ariz. IRVC8065 IRVC Hilaria rigida J. B. Anderson 495 1966-3-26 San Bernardino 10 miles east of Baker. IRVC8066 IRVC Hilaria rigida J. B. Anderson s.n. 1966-3-26 San Bernardino 10 miles east of Baker. IRVC8069 IRVC Hilaria rigida J. B. Anderson 495 1966-3-26 San Bernardino 10 miles east of Baker. IRVC8070 IRVC Hilaria rigida J. B. Anderson 495 1966-3-26 San Bernardino 10 miles east of Baker. IRVC8071 IRVC Hilaria rigida J. B. Anderson 495 1966-3-26 San Bernardino Pisgah Crater lava flow, 30mi. East of Barstow JEPS123809 UCJEPS Hilaria rigida J. Andre, T. La Doux, H. Bartosh, R. Preston, JEPS Herbarium Workshop 11947 2010-3-18 San Bernardino Sacramento Mountains; eastern end of Sacramento Mountains, along dirt road 4 miles S of I-40 at Highway 95 Junction, approx. 1 miles E of Flattop Mountain and 2 miles S of Eagle Peak. 7.5' Quad: Flattop Mountain. JOTR33001 JOTR Hilaria rigida Andre, Jim 19591 2010-4-2 San Bernardino Joshua Tree National Park. Pinto Mountains; 1.5 mi southeast of Clarks Pass (Hwy 62) JOTR33120 JOTR Hilaria rigida La Doux, Tasha 1605 2003-10-17 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Wonderland of Rocks; Wall Street Mill parking area to Wonderland Wash JOTR33121 JOTR Hilaria rigida La Doux, Tasha 1605 2003-10-17 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Wonderland of Rocks; Wall Street Mill parking area to Wonderland Wash JOTR33122 JOTR Hilaria rigida La Doux, Tasha 1605 2003-10-17 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Wonderland of Rocks; Wall Street Mill parking area to Wonderland Wash JOTR35052 JOTR Hilaria rigida La Doux, Tasha 3504 2010-3-24 Riverside Joshua Tree National Park. Coxcomb Mountains: southwest corner of park, north of MWD Aqueduct Road. South-facing bajada with shallow Sonoran desert riparian corridors among desert pavement. JOTR35984 JOTR Hilaria rigida Harding, Mitzi 195 2012-9-4 Riverside Joshua Tree National Park. Pinto Basin; north end of sand ramps west of Pinto Mtn; fine sand ramps and dunes (stop 2) JOTR36085 JOTR Hilaria rigida La Doux, Tasha 3312 2007-10-25 Riverside Joshua Tree National Park. Pinto Mtn foothills, San Bernardino Wash, approx. 0.75 km south of Sunset Mine (STOP4). JOTR36242 JOTR Hilaria rigida Hodges, Stephen R. 695 2015-9-23 San Bernardino Joshua Tree National Park. Pinto Mountains, between the eastern edge of the mountains and Clarks Pass, before highway 62 turns north LA00624050 LA Hilaria rigida C. A. Barber 1017 1970-4-18 San Bernardino Mojave Desert; Granite Mountains; Powerline Road, north of Granite Mountains, on Kelso Sand Dunes LA00624052 LA Hilaria rigida F. R. Fosberg 8044 1932-4-23 San Bernardino Mojave Desert; branch road to Rich's Well, 15 mi. E of Old Woman Springs LA00624054 LA Hilaria rigida Nesta Dunn s.n. 1932-3-26 Riverside Cottonwood Spring LA00624056 LA Hilaria rigida Victor Duran 3199 1932-5-12 San Diego Head of Box Canon, near Mason Valley LA00624057 LA Hilaria rigida Roxana S. Ferris 9500 1938-5-14 San Bernardino 1.5 miles from Box S Ranch on road to Box S Springs LA00624058 LA Hilaria rigida Carl Epling s.n. 1927-3-1 Riverside Whitewater Pass near Palm Springs LA00624059 LA Hilaria rigida William Shapeero s.n. 1954-4-28 Riverside Joshua Tree National Monument LA00624060 LA Hilaria rigida Carl Epling s.n. 1927-3-1 Imperial Sonoran Desert; wash near Salton Sea LA8280 LA Hilaria rigida Marcus E. Jones s.n. 1929-9-16 Riverside E of Desert Center LA8282 LA Hilaria rigida Miss C. M. Wilder 2915 1910-5-1 Riverside near Palm Springs LA93444 LA Hilaria rigida John O'Leary 432 1976-4-11 San Diego Anza Borrego State Park. (3 mi E of Ocotillo Wells) LA99245 LA Hilaria rigida Paul Leskinen 547 1970-5-31 San Bernardino Mojave Desert; Granite Mountains; below Coyote Springs LOB100015 LOB Hilaria rigida A.E. Fisher 313 2016-5-19 San Bernardino Near main Ord Mountain, BLM campsite south of Pipeline Road. LOB117604 LOB Hilaria rigida Ed Cleary s.n. 1973-2-15 Riverside Growing throughout Chuckwalla Mt. LOB117605 LOB Hilaria rigida P.C. Baker 5331 1965-4-14 Riverside off Canon Rd. (Palm Springs Depot), north of Palm Springs east of R.R LOB117606 LOB Hilaria rigida Ross Hardy s.n. 1950-4-15 Riverside 3 miles N of palm springs LOB117607 LOB Hilaria rigida Richard Teran 55 1972-4-15 Riverside Morongo valley 1.5 miles W of Yucca Valley hwy 62 LOB117608 LOB Hilaria rigida P.C. Baker 5331 1965-4-14 Riverside off Canon Rd. (Palm Springs Depot), north of Palm Springs east of R.R LOB117609 LOB Hilaria rigida P.C. Baker 5528 1966-3-17 San Diego On S-3 to Borrego at bottom of Mtns LOB117610 LOB Hilaria rigida James R. Shevock 3347 1974-4-06 San Bernardino 6 miles west of Parker Dam on California Hwy 62 LOB117611 LOB Hilaria rigida James R. Shevock 3354 1974-4-07 San Bernardino California Highway 62, ca. 5 miles west of the junction with California Highway 95 OBI177828 OBI Hilaria rigida Dr. Marc Horney 2017-9-5 San Bernardino Mojave National Preserve, along un-maintained road at base of wash OBI177829 OBI Hilaria rigida S. Boyd, D. Charlton 1742 1988-4-08 San Bernardino W side of Ord Mtn. N of Lucerne Valley. 15 mi S of I-40 on Camp Rock Rd near Tyler Valley OBI177830 OBI Hilaria rigida David J. Keil 16912 1983-4-17 San Diego Anza-Borrego State Park, near Borrego Springs OBI177832 OBI Hilaria rigida James M. Andre 15543 2010-6-2 San Bernardino New York Mts; Mojave Natl Preserve; along dirt rd to Mail Spring, 0.2 mi SW of spring area OBI177833 OBI Hilaria rigida James M. Andre 15879 2011-2-21 San Diego Borrego Desert; along Hwy S-22 15.3 mi E of Borrego Springs at base of Smoke Tree Cyn OBI177834 OBI Hilaria rigida F.C. Vasek s.n. 1978-4-22 San Bernardino Sheephole Mtns- cyn above Sheephole Pass. Sect 7 (SE corner) T2n, R12 E OBI177835 OBI Hilaria rigida Sears 900 1978-3-17 San Bernardino Approx. 20 N of Vidal Jct near dirt rd going W into the N edge of the Turtle Mts. T4N, R22E, Sec 21 and 22 OBI177836 OBI Hilaria rigida Rhonda Riggins 1472 1983-3-21 San Bernardino Amboy-29 Palms Rd, 1.7 mi E The Palms OBI177837 OBI Hilaria rigida Rhonda Riggins 1337 1982-4-14 San Bernardino Joshua Tree Natl Monument. Monument Rd 3.4 mi S entrance, 7.6 N jctn Keys View Rd OBI177838 OBI Hilaria rigida David J. Keil 11925 1976-12-12 Riverside Along I-10, 37 mi E of chiriaco Summit OBI177839 OBI Hilaria rigida Robert F. Hoover 10179 1966-10-15 Riverside Bighorn Dr, San Jacinto Mts OBI177840 OBI Hilaria rigida David J. Keil 12999 1979-3-19 San Diego About 3 W of Ocotillo Wells, just outside of e boundary of Anza-Borrego State Park PUA30595 PUA Hilaria rigida Gilbert Jerome Muth 1968-3-18 San Diego Local landmark: Ocotillo Flat. Borrego Palm Canon Quad. PUA55319 PUA Hilaria rigida G.L. Clifton 1982-4-21 San Bernardino Local landmark: Vidar Junction. Vidal Quad. PUA55428 PUA Hilaria rigida G.L. Clifton 1982-4-24 San Diego Local landmark: San Felipe Creek. Tubb Canon Quad. PUA6261 PUA Hilaria rigida Gilbert Jerome Muth 1968-3-18 San Diego Local landmark: Ocotillo Flat. Borrego Palm Canon Quad. RSA0012218 RSA Hilaria rigida A. C. Sanders 38604 2010-9-21 Inyo Northeastern Mojave Desert: Pahrump Valley, east of the Nopah Range and NE of Calvada Springs, State Line Rd. 1.9 miles north of Old Spanish Trail Hwy; Calvada Springs 7.5 Q. RSA0035426 RSA Hilaria rigida Melvin M. Sweet 910 2010-3-27 San Diego Anza-Borrego Desert State Park; 0.4 miles S of State Hwy 78, along the Mine Wash Jeep Trail, which intersects Hwy 78 2.8 miles east of County Route S3 (Yaqui Pass). RSA0040034 RSA Hilaria rigida W. Marquart s.n. 1938-3-12 Riverside Mule mts. south of Chuckwalla range. RSA0059851 RSA Hilaria rigida Sarah J. De Groot 7268 2014-8-23 San Bernardino BLMNipton Road about 0.25 mile southeast of I-15, southwest of Ivanpah Lake, west of Nipton, and west of Ivanpah Road. Wheaton Wash drainage area. East of Mescal/Ivanpah Range and Clark Mountain.; Mineral Hill 7.5' RSA0073446 RSA Hilaria rigida Jim Andre 24334 2013-3-5 San Bernardino BLMWhipple Mountains; south side of range, along rough dirt road 0.6 N. of Hwy 62, 12.5 mi. west of Colo. River (at Parker), approx. 3 mi. east of Vidal Jct.; Vidal Junction 7.5' RSA0078216 RSA Hilaria rigida Sarah J. De Groot 7591 2015-9-29 San Bernardino BLM. Newberry Mountains; along Camp Rock Road at southwest end of narrows. North of Ord Mountain and Aztec Spring, east-southeast of Barstow.; Minneola 7.5' RSA0078657 RSA Hilaria rigida B. A. Stein 4175 1988-4-30 San Bernardino Granite Mts., S. of Kelso, Sheep Corral at SE end of range. RSA0080221 RSA Hilaria rigida J. M. Andre 24493 2013-4-10 San Bernardino Old Woman Mountains; Canonate Gulch, just west of Dripping Spring, 3.2mi east (upstream) from lower entrance to canyon, NW end of range, ~9 mi south of Danby, about 9 mi east of Ship Mtn.; Old Woman Statue 7.5 Quad RSA0087485 RSA Hilaria rigida Thomas R. Stoughton 2096 2016-2-23 San Bernardino BLMPinto Mountains area, E of Humbug Mountain off Gold Crown Road.; New Dale 7.5' USGS RSA0087828 RSA Hilaria rigida Sarah J. De Groot 7594 2015-10-13 Riverside BLMSanta Rosa Mountains, south-southwest of Palm Desert. Along Carrizo Road just northwest of Highway 74.; Toro Peak 7.5' RSA0093321 RSA Hilaria rigida Thomas R. Stoughton 2056 2016-2-23 San Bernardino BLMNE slope of San Bernardino Mountains off highway 247 New Dixie Mine Road.; Landers 7.5' Quad. RSA0099448 RSA Hilaria rigida Duncan S. Bell 7692 2014-10-29 Riverside BLMSanta Rosa Mountains; collecting in Agua Alta Canon, to the north of Martinez Canon, about 6 air miles southeast of the summit of Martinez Mountain.; Martinez Mountain RSA0106578 RSA Hilaria rigida Duncan S. Bell 736 2010-4-9 San Bernardino BLMAbout 5 air miles northwest of the Arica Mountains; collecting in sand dunes to the south of Highway 62.; East of Granite Pass RSA0107461 RSA Hilaria rigida Duncan S. Bell 2944 2011-9-30 Riverside BLMNortheastern section of the Arica Mountains; northwest section of Rice Valley; approx. 2 air miles southwest of the ghost town of Rice.; Rice RSA0117626 RSA Hilaria rigida Sarah J. De Groot 7692 2016-3-22 San Bernardino BLMClipper Mountains, south side, just west of Bonanza Spring; road NS 206 ca. 3 miles northwest of Highway 66. South of Interstate 40, northwest of Danby, west-southwest of Essex.; Castle Dome 7.5' RSA0117898 RSA Hilaria rigida Sarah J. De Groot 7607 2016-2-17 Riverside BLMSanta Rosa Mountains: Slide off east side of Martinez Mountain, north of Toro Canon, south of La Quinta, southwest of Thermal and Coachella.; Martinez Mountain 7.5' RSA0118147 RSA Hilaria rigida Sarah J. De Groot 8033 2016-9-28 San Bernardino BLMWhipple Mountains Wilderness, northwest of Parker, AZ, and south of Havasu Lake. North slope of mountains 1.2 air miles north-northwest of Axtel 4130, 2.2 air miles south-southeast of War Eagle No. 1 mine.; Whipple Mountains 7.5', San Bernardino MeridianBetween 34.32 N, 114.42 W and [given coordinates]. RSA0123187 RSA Hilaria rigida Duncan S. Bell 9407 2016-4-19 San Bernardino BLMPipes Wash, collecting between Black Hill and Flat Top Mesa, approximately 2 air miles north of Pioneertown.; Yucca Valley North RSA0124124 RSA Hilaria rigida Duncan S. Bell 8737 2016-2-17 Riverside Santa Rosa Mountains; collecting on the Martinez Slide to the north of Toro Canon, approximately 5.25 air miles east northeast of the summit of Martinez Mountain.; Martinez Mountain RSA0135568 RSA Hilaria rigida G. Rink 11900a 2013-3-20 Riverside About twelve miles west of Blythe, at the site of the proposed Quartzite solar power plant. RSA0146407 RSA Hilaria rigida Jim M. Andre 34640 2016-2-23 San Diego SPBorrego Desert: Anza Borrego St Park; Salada Arroyo, along jeep trail to Seventeen Palms, about 0.5 mi. south of S-22. RSA0150167 RSA Hilaria rigida Jon P. Rebman 32619 2017-3-18 Imperial Indian Pass area between Picacho and Black Mountain: east of the Algodones Dunes; east of Ogilby Rd. (S34) & just north of Indian Pass Road; along a canyon and its adjacent slopes. RSA0155062 RSA Hilaria rigida Sarah J. De Groot 8225 2017-3-15 San Bernardino BLMSouth-central Turtle Mountains, Turtle Mountain Wilderness: ca. 1 air mile northeast of Horn Peak. West of Vidal Valley, northwest of Vidal Junction, north of Highway 62, west of Highway 95.; Horn Spring 7.5' RSA0155442 RSA Hilaria rigida Sarah J. De Groot 9395 2017-10-17 San Bernardino BLMNorthern Cady Mountains, ca. 2.8 air miles southwest of Afton Campground, south of the Mojave River; south of Afton Canon, southeast of I-15.; Dunn 7.5'. San Bernardino meridian RSA0156987 RSA Hilaria rigida Sarah J. De Groot 8536 2017-4-5 Inyo Nopah Range Wilderness, east side of Nopah Range. Ca. 1.9 air miles west of Mesquite Valley Road.; North of Tecopa Pass 7.5' Q. San Bernardino meridian. RSA0157252 RSA Hilaria rigida Sarah J. De Groot 9469 2017-10-26 San Bernardino BLMNorth tip of Dead Mountains, Dead Mountains Wilderness: ca. 1.4 air miles south-southeast of powerline road 9029, ca. 16.7 air miles north-northwest of Needles, ca. 1.4 air miles southwest of CA-NV state line, west of U.S. Highway 95.; Mt. Manchester 7.5'. San Bernardino meridian RSA0157369 RSA Hilaria rigida Sarah J. De Groot 8417 2017-3-28 San Bernardino BLMClipper Mountains Wilderness, east-southeast side of Clipper Mountains: Hummingbird Spring trail, between spring area and wilderness boundary. South of I-40, north of Highway 66; 1.5 road miles along NS 022 southwest of Essex Road.; Blind Hills 7.5', San Bernardino meridianThen 3.5 road miles west-northwest on NS 021 (Hummingbird Spring Trail). Ca. 5.7 air miles west-northwest of Essex. Between 34.75 N, 115.34 W and 34.75212 N, 115.33625 W. RSA0157421 RSA Hilaria rigida Sarah J. De Groot 8506 2017-3-29 San Bernardino BLMEast side of Iron Mountains, southwest of Danby Lake, west side of Ward Valley. Ca. 1.0 miles west of powerline and Water Road (054).; Iron Mountains 7.5' Q. San Bernardino meridian RSA0172169 RSA Hilaria rigida Naomi Fraga 4908 2014-7-29 San Bernardino San Bernardino National ForestSan Bernardino Mountains; Bighorn Mountain Wilderness. Viscera Spring.; Rattlesnake Canon RSA0177653 RSA Hilaria rigida L. Maynard Moe 504a 1985-3-31 Riverside Desert wash near Corn Springs, south of Hwy #10. RSA0187211 RSA Hilaria rigida Jim M. Andre 38070 2017-3-10 Riverside NPSCoxcomb Mountains. North of hwy 177 at jtnp boundary, 10.1 mi. ne of desert center (i-10).; East of Victory Pass 7.5' RSA0187362 RSA Hilaria rigida Jim M. Andre 36497 2016-9-29 San Bernardino NPSIvanpah Mountains. Mojave natl. preserve; e end of range on west-facing slopes above oro wash, 4.0 mi. n of morning star mine, just ne of allured mine area (historic).; Mineral Hill 7.5' RSA0190848 RSA Hilaria rigida Jim M. Andre 37177 2017-3-4 Riverside BLMAlong west side of us hwy 95, 21.4 mi. south of vidal junction, just north of big maria mountains.; Big Maria Mountains NE 7.5' RSA0201750 RSA Hilaria rigida Sarah J. De Groot 9787 2018-4-12 San Bernardino BLMKingston Range Wilderness: ca. 1.3 air miles east-northeast of Eastern Star Mine and NN422, east-southeast of the Kingston Wash Route (D1 NN428), in the northwest Shadow Mountains. East edge of Valjean Valley.; Kingston Spring 7.5' quad. San Bernardino meridian RSA0202661 RSA Hilaria rigida Sarah J. De Groot 10073 2018-10-23 San Bernardino BLMNorthern Sacramento Mountains, Tan Tan Well. 2.9 road miles south of I-40 NS 068. Ca. 9 air miles west of Needles. Between Hacienda and Crestview washes.; Flattop Mountain 7.5' quad. San Bernardino meridian RSA0203150 RSA Hilaria rigida Sarah J. De Groot 9723 2018-4-11 San Bernardino BLMValjean Hills; east of old Tonopah and Tidewater Railroad grade D1612, ca. 4.7 road miles north of the Kingston Wash route D152, east of Highway 127. Southwest of the Kingston Range, south of the Dumont Hills, north of Baker.; Valjean Hills 7.5' quad. San Bernardino meridian RSA651787 RSA Hilaria rigida Marion P. Harthill 1640 b 1973-3-29 San Bernardino Zzyzx. RSA651788 RSA Hilaria rigida Marion P. Harthill 1640-a 1973-3-29 San Bernardino Zzyzx. SACT1282 SACT Hilaria rigida Jones 1929-9-16 Riverside SD00000790 SD Hilaria rigida R. Mitchel Beauchamp 1964 1971-3-26 San Diego Along Borrego-Salton Seaway, south end of Clark Valley. Anza-Borrego State Park. SD00007855 SD Hilaria rigida Jon P. Rebman 3771 1996-10-27 Imperial North of Glamis, Algodones Dunes. (IPB 10/07) SD00016849 SD Hilaria rigida Sarah De Groot 8417 2017-3-28 San Bernardino Clipper Mountains Wilderness, east-southeast side of Clipper Mountains: Hummingbird Spring trail, between spring area and wilderness boundary. South of I-40, north of Highway 66; 1.5 road miles along NS 022 southwest of Essex Road.Then 3.5 road . . . . SD00019096 SD Hilaria rigida Larry Hendrickson 3480 2008-3-26 Imperial Ocotillo Wells State Vehicular Recreation Area. Palm Wash, 4.4 miles W of California Route 86, 1.0 mile N of Imperial County Route S22 and 1.2 miles WNW of Four Palms Spring. SD00024628 SD Hilaria rigida Sarah De Groot 8536 2017-4-5 Inyo Nopah Range Wilderness, east side of Nopah Range. Ca. 1.9 air miles west of Mesquite Valley Road. . . . . SD00031055 SD Hilaria rigida R.C. Benkendorf 762 2017-6-10 San Bernardino [ca. 1.4 NNE of Tip Top Mtn; San Bernardino Mtns]. SD00037266 SD Hilaria rigida Sarah J. De Groot 9723 2018-4-11 San Bernardino Valjean Hills; east of old Tonopah and Tidewater Railroad grade D1612, ca. 4.7 road miles north of the Kingston Wash route D152, east of Highway 127. Southwest of the Kingston Range, south of the Dumont Hills, north of Baker. SD00037267 SD Hilaria rigida Sarah De Groot 8225 2017-3-15 San Bernardino South-central Turtle Mountains, Turtle Mountain Wilderness: ca. 1 air mile northeast of Horn Peak. West of Vidal Valley, northwest of Vidal Junction, north of Highway 62, west of Highway 95. . . . . SD00037268 SD Hilaria rigida Sarah J. De Groot 10073 2018-10-23 San Bernardino Northern Sacramento Mountains, Tan Tan Well. 2.9 road miles south of I-40 NS 068. Ca. 9 air miles west of Needles. Between Hacienda and Crestview washes. SD00037273 SD Hilaria rigida Sarah J. De Groot 9787 2018-4-12 San Bernardino Kingston Range Wilderness: ca. 1.3 air miles east-northeast of Eastern Star Mine and NN422, east-southeast of the Kingston Wash Route (D1 NN428), in the northwest Shadow Mountains. East edge of Valjean Valley. SD00038728 SD Hilaria rigida Sarah De Groot 9469 2017-10-26 San Bernardino North tip of Dead Mountains, Dead Mountains Wilderness: ca. 1.4 air miles south-southeast of powerline road 9029, ca. 16.7 air miles north-northwest of Needles, ca. 1.4 air miles southwest of CA-NV state line, west of U.S. Highway 95. . . . . SD00038729 SD Hilaria rigida Sarah De Groot 8506 2017-3-29 San Bernardino East side of Iron Mountains, southwest of Danby Lake, west side of Ward Valley. Ca. 1.0 miles west of powerline and Water Road (054). . . . . SD00038730 SD Hilaria rigida Sarah De Groot 9395 2017-10-17 San Bernardino Northern Cady Mountains, ca. 2.8 air miles southwest of Afton Campground, south of the Mojave River; south of Afton Canon, southeast of I-15. . . . . SD00055393 SD Hilaria rigida SD-163 1979-3-03 San Diego In side canyon off Sweeny Wash SD10545 SD Hilaria rigida Frank F. Gander 137-10 1935-3-07 San Diego About 5 miles east of the Narrows, northeast San Diego County SD112835 SD Hilaria rigida Darley F. Howe 629 1938-4-15 San Diego Borego Valley State Park. (IPB 3/07) SD124684 SD Hilaria rigida A.C. Sanders 6155 1986-3-08 Imperial N end of Algodones Dunes, East Mesa at E end of Montgomery Road, ca. 1 mile E of Highline Canal SD129177 SD Hilaria rigida A. C. Sanders 9496 1989-9-19 Riverside Chocolate Mountains Aerial Gunnery Range: 1.75 kilometers (airline) south of the Tabaseca Tank, along the wash above Tabaseca Target (UTM: 11S, PH-35E, 0 N) SD133226 SD Hilaria rigida B. Pitzer 1746 1991-6-04 San Bernardino 29 Palms Marine Corps Base, Emerson Range, ca. 4 kilometers south of Hidalgo Mountain (ca. due east of north end of Artillery Hill) SD139834 SD Hilaria rigida Christopher Christie 61 1997-1-20 San Bernardino Chemehuevi Mountains Wilderness Area; Quad: Whale Mountain; Meridian: San Bernardino; UTM Zone: 11S; 0718140 East, 3838 North SD144115 SD Hilaria rigida G.K. Helmkamp s.n. 1998-1-24 Imperial Gravel Rd S of Hwy I-8. Rocky hills at W edge of Fort Yuma Indian Reservation SD14528 SD Hilaria rigida Frank F. Gander 1318 1936-4-14 San Diego Borego Palm Canon (IPB 3/07) SD148478 SD Hilaria rigida Jon P. Rebman 6283 2000-3-23 San Diego Anza-Borrego Desert State Park: South of Ocotillo Wells; small canyon before Starfish Cove Canon, Elephant Trees Discovery Trail. (IPB 3/07) SD154438 SD Hilaria rigida Joe Barth 34 2004-2-23 San Diego Shell Reef Expressway E of N San Felipe Wash Rd. SD159652 SD Hilaria rigida Larry Hendrickson 8 2004-2-20 San Diego 0.5 miles Southeast of Little Clark Lake, Anza-Borrego State Park SD161358 SD Hilaria rigida Joe Barth 116 2004-10-30 San Diego In and near San Felipe Wash, NE of East Butte Borrego Mt. SD161634 SD Hilaria rigida Mike D. Angel 183 2005-3-5 San Diego Anza-Borrego Desert State Park. June Wash. Exit Highway S2 3.2 miles from Agua Canonal Park. Take dirt road north. Road forks about 2.5 miles in. Take right fork. Drive about 1.3 miles further until road ends SD161861 SD Hilaria rigida Bill Sullivan 28 2005-2-4 San Diego Borrego Springs, Anza-Borrego Desert SP, south end of Desert Gardens by Coyote Canon jeep trail at base of Coyote Mountain ridge, 2.1 miles north of north end of DiGiorgio Road blacktop SD161863 SD Hilaria rigida Melvin M. Sweet 22 2004-12-22 San Diego Borrego Springs; Coyote Canon Lower Willows, along bypass jeep road SD165333 SD Hilaria rigida Bill Sullivan 84 2005-4-5 San Diego Borrego Springs, Anza-Borrego Desert SP, Coyote Canon, wash draining Coyote Mtn Ridge 0.7 mile northeast of Coyote Creek SD16697 SD Hilaria rigida Frank F. Gander 3152 1937-4-06 San Diego Extreme northeast corner of San Diego County (IPB 3/07) SD16772 SD Hilaria rigida Frank F. Gander 3227 1937-4-07 San Diego Kane Springs Road, low hill 1 mile west of County Line SD16802 SD Hilaria rigida Frank F. Gander 3257 1937-4-07 San Diego Kane Springs Road, County Line SD169443 SD Hilaria rigida Joe Barth 154 2005-1-29 San Diego Anza- Borrego Desert State Park. On mesa above west bank of San Felipe Wash in southeast part of square. SD170059 SD Hilaria rigida Nancy Nenow 161 2005-3-20 San Diego Lois Neyenesch Folly (private property) at southeastern end of Canone mile west of highway S2 at Canon, just NW of Anza-Borrego Desert State Park boundary, SD170060 SD Hilaria rigida Larry Hendrickson 554 2005-4-27 San Diego Anza-Borrego Desert State Park. Grave Wash at the SE end of the Santa Rosa Mountains in California State Wilderness. Approx. 5.0 miles WSW of Imperial Co. Hwy 86 at the Grave Wash overpass bridge. 300 ft. west of County line/Park boundary. SD170061 SD Hilaria rigida Larry Hendrickson 464 2005-4-3 San Diego Anza-Borrego Desert State Park. Mason Valley, East of Vallecito Wash on NE side of County Hwy S-2 approx. 0.9 mi SE of access road to Oriflamme Canon. SD170062 SD Hilaria rigida Joe Barth 190 2005-1-31 San Diego Anza-Borrego Desert State Park on Font's Point in the Borrego Badlands; (southwest part of square). SD170063 SD Hilaria rigida Joe Barth 163 2005-1-30 San Diego Borrego Valley at the south base of Coyote Mt. in area of Peg Leg Monument at intersection of Peg Leg Rd and the Borrego-Salton Seaway (Hwy S22); northwest corner of square. SD170064 SD Hilaria rigida Jeannie Gregory 1283 2005-3-19 San Diego Anza-Borrego State Park; 8 miles W of Ocotillo at base of Jacumba Mtns; Mortero Canon Rd; by the railroad tracks just SW of Dos Cabezas Mine. SD170065 SD Hilaria rigida Char Glacy 66 2005-3-21 San Diego Anza Borrego Desert State Park, just N of Palm Spring, ca. 5 mi SE of Agua Caliente Springs, ca.1 NE of Canon at S2. SD170066 SD Hilaria rigida Joe Barth 205 2005-2-1 San Diego Anza-Borrego Desert State Park near southern base of Santa Rosa Mts; .1 mile northwest of where Palo Verde Wash Rd. meets Hwy S22 (southwest part of square). SD171692 SD Hilaria rigida Jon P. Rebman 11776 2005-4-22 San Diego Anza-Borrego Desert State Park: Henderson Canon, approx. 2 miles north of Borrego Springs, just northwest of Galleta Meadows SD173278 SD Hilaria rigida Larry Hendrickson 1928 2005-4-14 Imperial Trust for Public Lands Option Properties; South of SE tip of Santa Rosa Mtns. Coral Wash, approx. 2.5 air miles SW of hwy. 86 and 2.0 air miles north of hwy. S-22 (Borrego-Salton Seaway). SD178001 SD Hilaria rigida Jon P. Rebman 12862 2006-5-20 San Diego Vallecito Valley (BLM Wilderness area): S of Vallecito Stage Station County Park in Potrero Canon, base of the Sawtooth Mountains on the west side SD180528 SD Hilaria rigida Bill Sullivan 174 2006-4-18 San Diego Anza-Borrego Desert State Park, Borrego Mountain, Hawk Canon, « mi N on canyon jeep trail from Buttes Pass jeep road. SD183984 SD Hilaria rigida Jeannie Gregory 1999 2006-5-20 San Diego Sawtooth Mountains Wilderness (BLM Land): Vallecitos Valley, S of Vallecito Stage Station County Park in northern edge of The Potrero, on NW base of the Sawtooth Mountains SD184179 SD Hilaria rigida Jon P. Rebman 14251 2008-3-12 San Diego Anza-Borrego Desert State Park: east of Borrego Springs; just west of the Imperial/San Diego county border on the north side of Hwy. S22/Borrego Salton Seaway; along the Calcite Mine road SD184551 SD Hilaria rigida Larry Hendrickson 1449 2006-5-20 San Diego Anza-Borrego Desert State Park. Vallecito Valley (formerly the Vallecito Ranch) 2.8 km south of County Hwy S-2 on the west side of the Sawtooth Mtns. SD185089 SD Hilaria rigida John F. Green s.n. 2005-2-2 Riverside 3.0 miles east of Desert Beach. SD191738 SD Hilaria rigida Jon Rebman 14575 2008-4-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 8 (SL8), in Big Wash, Site PHACRE in arroyo bottom and surrounding embankments SD191739 SD Hilaria rigida Jon Rebman 14525 2008-4-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 7 (SP7), in Big Wash Middle, Site ESCPAR in arroyo bottom and surrounding embankments SD191740 SD Hilaria rigida Jon Rebman 14387 2008-4-8 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 18 (SL18), small arroyo off of Grave Wash, Site LARTRI in arroyo bottom and surrounding cliff walls SD193144 SD Hilaria rigida Jon P. Rebman 16862 2009-4-10 San Diego Anza-Borrego Desert State Park: southwest of Highway S-2 and south of Dos Cabezas; near the San Diego/Imperial County line in a sand dune area near the mouth of Hayden Spring canyon SD193471 SD Hilaria rigida CRES Native Seed Gene Bank 79 2005-3-30 San Diego Anza-Borrego Desert State Park, 0.3 mi E of junction of Hwy 78 and San Felipe Rd at Hwy 78, E of Scissors Crossing SD19865 SD Hilaria rigida Frank F. Gander 4715 1937-11-21 San Diego Across from Gypsum Mine, Fish Creek (IPB 3/07) SD199751 SD Hilaria rigida Jon Rebman 16396 2009-3-11 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 4 (SL4), Verbena Wash, Site FAGPAC in rocky arroyo and surrounding rocky hillsides & mesa SD199752 SD Hilaria rigida Jon Rebman 16567 2009-3-23 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 26 (SL26), Amerosa Wash, Site CHOBRE on mesas and surrounding mud and cobble hillsides and arroyos SD199753 SD Hilaria rigida Jon Rebman 16328 2009-3-11 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 5 (SP5), Verbena Wash, Site HIBDEN in rocky arroyo and surrounding rocky hillsides SD199754 SD Hilaria rigida Jon Rebman 16147 2009-3-9 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 20 (SL20), Palm Wash, Site BRATOU in sandy arroyo bottom and surrounding rocky mud embankments SD199755 SD Hilaria rigida Jon Rebman 16455 2009-3-12 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 6 (SL6), Verbena Wash, Site PHAMIN in rocky arroyo and surrounding rocky hillsides & mesas SD199756 SD Hilaria rigida Jon Rebman 16129 2009-3-9 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, approx. 2.7 mile W of Hwy. 86; Section 22 (SL22), Palm Wash, Site PHOCAL in sandy arroyo bottom and surrounding mud embankments SD199757 SD Hilaria rigida Jon Rebman 16246 2009-3-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 19 (SP19), Palm Wash, Site HILRIG in sandy arroyo with desert pavement benches on the surrounding embankments SD199758 SD Hilaria rigida Jon Rebman 16279 2009-3-10 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 21 (SP21), Palm Wash, Site CHACARPEI in sandy arroyo and surrounding mud embankments and mesas SD200288 SD Hilaria rigida Jon Rebman 16747 2009-3-26 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 15 (SP15), Coral Wash, Site PECHET on dried mud and sand arroyo and surrounding hillsides SD200289 SD Hilaria rigida Jon Rebman 16585 2009-3-23 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 9 (SP9), north fork of Big Wash, Site ENCHYB on flats and in cobble and sand arroyos SD200290 SD Hilaria rigida Jon Rebman 16831 2009-3-27 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 10 (SL10), in Big Wash, Site ASCERO in sandy arroyo and surrounding cobbly mesas SD200291 SD Hilaria rigida Jon Rebman 16518 2009-3-23 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, W of Salton City, Along Hwy S22, section 29 (SP29), Site LANSET on mesa and surrounding mud and cobble hillsides SD201243 SD Hilaria rigida Don Rideout 15 2008-2-21 San Diego Anza-Borrego Desert State Park, Palo Verde Wash, approx. 0.8 miles south of Highway S-22. SD202081 SD Hilaria rigida Christopher Christie 16 1996-12-30 San Bernardino In wash, Bullion Mountains/Sheephole Pass. SD203144 SD Hilaria rigida Bill Sullivan 402 2008-3-11 San Diego Anza-Borrego Desert State Park, Borrego-Salton Seaway (County Road S22), northeast of Call Box S22-319 SD203145 SD Hilaria rigida Larry Hendrickson 343 2005-3-3 San Diego Anza-Borrego Desert State Park. Hawk Canon, SE-flank of West Butte, Borrego Mountain. 2.0 surface mi NE of intersection of Buttes Pass Road and State Hwy 78, 0.3 NE of Buttes Pass Road at end of access road to canyon SD203146 SD Hilaria rigida Larry Hendrickson 2698 2008-3-11 San Diego Borrego Palm Canon, Anza-Borrego Desert State Park. Alternate Trail on south side of canyon, 3.0 miles WNW of Borrego Springs (Christmas Circle), 1.4 miles S of Indianhead summit (San Ysidro Mountains), and 0.4 mile W of trailhead parking. SD205095 SD Hilaria rigida Melvin M. Sweet 465A 2007-9-30 San Diego Anza-Borrego State Park; Vista del Malpais Overlook in the Borrego Badlands, ca 3 miles S of Hwy S22 SD205096 SD Hilaria rigida Jeannie Gregory 2703 2008-3-7 San Diego Anza-Borrego Desert State Park, 3.5 mi SE of intersection Arroyo Salada and Borrego Salton Seaway (S22), just S of 17 Palms Oasis, ca 1 mi from Imperial County line SD207489 SD Hilaria rigida Layla Aerne Hains 159 2008-3-27 San Diego Anza-Borrego Desert State Park, along road to Canon Sin Nombe, 1.3 mile E from intesection with Highway S2 (Sweeny Pass Rd), 11.5 W of I8 and town of Ocotillo SD211361 SD Hilaria rigida Jon Rebman 18885 2010-4-3 Imperial Southwest of Plaster City on Bureau of Land Management (BLM) property in an area proposed for development of a solar facility: S of Hwy. S8 N of I-8, NE of Ocotillo & W of El Centro; along a powerline road SD211828 SD Hilaria rigida Larry Hendrickson 3599 2009-3-30 San Diego Anza-Borrego Desert State Park. Rockhouse Canon, a major tributary of Carrizo Wash in the In-Ko-Pah Mountains. 2.7 miles S of intersection of County Road S-2 and Carrizo Wash jeep trail. SD211829 SD Hilaria rigida Larry Hendrickson 3576 2009-3-29 San Diego Anza-Borrego Desert State Park. Earthquake Valley, mouth of Crime Canon (unofficial name). 1.5 air miles E of intersection of County Road S-2 and road to Blair Valley. 0.3 mile east of northern access road to Little Blair Valley. SD211830 SD Hilaria rigida Larry Hendrickson 3399 2009-3-8 San Diego Anza-Borrego Desert State Park. Bisnaga Wash, the next major wash east of Alta Bisnaga Wash. 4.0 miles SSW of Whale Peak summit, and 0.5 mile NNW of Agua Caliente Springs (County Park). 300 W of signed cul-du-sac north side County Rd. S-2 SD211831 SD Hilaria rigida Larry Hendrickson 2958 2008-4-20 San Diego Cool Canon, east flank of Granite Mountain, Anza-Borrego Desert State Park. 4.1 air miles SE of intersection of State hwy. 78 and County Road S-2, 2.7 miles E of Granite Mountain summit, and 0.8 mile SW of intersection of S-2 and access road to canyon. SD211832 SD Hilaria rigida Nancy Nenow 424 2008-4-16 San Diego Anza-Borrego Desert State Park, 1« mi SW of S-2 on Indian Gorge dirt road, Torote Canon, W side of Carrizo Valley SD211833 SD Hilaria rigida Kim Marsden 261 2008-3-20 San Diego Anza-Borrego State Park, 6.5 mi ESE of town of Borrego Springs, 300 meters SE of San Gregorio monument along Borrego Sink Wash, 3.8 NNE of intersection Borrego Springs Road and Fletcher Road SD212864 SD Hilaria rigida Jon P. Rebman 21542 2011-5-3 San Diego Anza-Borrego Desert State Park: vicinity of Whale Peak; south of Pinyon Mountain Valley Road, east of The Squeeze and northeast of the highest point of Whale Peak; sandy valley SD212865 SD Hilaria rigida Jon P. Rebman 20597 2011-2-12 San Diego Anza-Borrego Desert State Park: southeast of Canebrake; east of Hwy S-2, in a side canyon to the south of South Carrizo Wash Road SD212866 SD Hilaria rigida Jon P. Rebman 20580 2011-2-11 San Diego Anza-Borrego Desert State Park: southeast of Canebrake; east of Hwy S-2 off of South Carrizo Wash, near the road to Canon Sin Nombre in a side canyon SD214024 SD Hilaria rigida Larry Hendrickson 3340 2008-12-3 San Diego Anza-Borrego Desert State Park. Vallecito Valley, Vallecito Ranch (formerly Campbell Ranch). 0.8 mile NW of Troutman Mountain, and 0.2 SE of historic homesite, 0.5 mi SW of S-2 at dirt road entrance. SD214025 SD Hilaria rigida Larry Hendrickson 3383 2009-3-1 San Diego Anza-Borrego Desert State Park. Carrizo Wash, 1.6 surface miles SSW of intersection of County Rd. S-2 and access road to wash, and 1.0 mile north of Rockhouse Canon. SD219666 SD Hilaria rigida Larry Hendrickson 4500 2010-3-3 San Diego Anza-Borrego Desert State Park. NE-side of Vallecito Mountains. 3.6 air miles SW of intersection of State hwy. 78 and Split Mountain Rd., and 1.0 mile SW of intersection of Old Kane Springs Rd. and Youngs Rd. SD219667 SD Hilaria rigida Larry Hendrickson 4697 2010-5-6 San Diego Anza-Borrego Desert State Park. Smuggler Canon, east of Little Blair Valley. 2.1 air miles SW of Whale Peak summit, and 0.6 mile ESE of terminus of road to Pictographs trailhead. SD220618 SD Hilaria rigida Margaret R. Mulligan 2510 2008-4-25 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City; Section 14 (SL14), in Coral Wash ca. 2 mi southwest of Hwy 86. SD224799 SD Hilaria rigida A.C. Sanders 16205 1995-3-22 Riverside Coachella Valley: mouth of San Gorgonio Pass, alluvial fan just E of the mouth of Whitewater Canon between Windy Point and I-10. SD227188 SD Hilaria rigida Joe Barth 1114 2011-2-14 San Diego E side of Borrego Springs Rd, ~0.1 mile S of Tilting T Dr. Town of Borrego Springs. SD227189 SD Hilaria rigida Joe Barth 1233 2011-3-6 San Diego Loop Wash, 3 miles due W of county line, 11.6 miles due S of state hiway 78, ~0.35 mile N of Fish Creek Wash, ~0.33 mile due W of Loop Wash's east junction with Fish Cr Wash. Anza-Borrego Desert State Park. SD227190 SD Hilaria rigida Joe Barth 1230 2011-3-5 San Diego Lower Fish Creek Wash in Split Mountain (N of the well known anticline); 8.8 miles due S of State Hwy 78, 0.4 mile due W of county line. Anza-Borrego Desert State Park. SD227191 SD Hilaria rigida Joe Barth 914 2010-3-6 San Diego Anza-Borrego Desert State Park: the sw part of the South Mesa (north and east of the Carrizo Badlands). Ca. 0.3 mile to the east of the canyon drainage called Arroyo Seco del Diablo. Ca. 2 miles N of Carrizo Creek. Ca.2.8 miles west of the county line. SD228362 SD Hilaria rigida Joe Barth 1172 2011-3-3 San Diego Ol' Kane Springs Rd, 2 miles due S of Hwy 78, 2.8 miles due W of Split Mt Rd. Lower Borrego Valley. Anza- Borrego Desert State Park. SD228363 SD Hilaria rigida Joe Barth 1392 2011-4-13 San Diego Anza Borrego Desert State Park's Volcanic Hills area. Mortero Canon. 1.2 mile due W of Imperial County line. 2.3 miles due S of Hiway S2, 9.3 miles due N of Frwy I8. SD228364 SD Hilaria rigida Joe Barth 1277 2011-4-4 San Diego Jojoba Wash, Anza-Borrego Desert State Park. 2.25 miles due S of Hwy S2, 11 miles due N of Freeway I8, 3.8 miles due W of Imperial county line. Bajada WNW of the Volcanic Hills. SD228365 SD Hilaria rigida Thomas E. Barckley 60 2009-3-8 San Diego North East portion of Anza-Borrego Desert State Park; Wonderstone Wash, 6.3 miles SSW of Salton Sea Beach, just inside park boundary SD228366 SD Hilaria rigida Joe Barth 1424 2011-4-15 San Diego Anza Borrego Desert State Park. East base of Jacumba Mts, SW of the Volcanic Hills. NW of Piedras Grandes Mt. By RR trax and adjacent slopes and flats. 3 miles due W of Imperial County line. 4.7 miles due S of Hiway S2, 8.2 miles due N of Interstate 8. SD229808 SD Hilaria rigida Jon P. Rebman 25507 2013-2-10 San Diego Anza-Borrego Desert State Park: Split Mountain area; to the southwest of the Wind Caves and west of Elephant Knees area; along Fish Creek Wash SD233248 SD Hilaria rigida Sandra M. Namoff 36 2011-3-27 San Bernardino Transverse Ranges: BLM, White Water Canon, west side of Aanyon Rd. Drive, near Painted Hill. SD233443 SD Hilaria rigida Joe Barth 1563 2011-5-25 San Diego N Fork Indian Valley, Anza Borrego Desert State Park; bajada N of road. ~2.3 miles ~NNE of Sombrero Pk. About 19 miles ~WNW of village of Ocotillo in Imperial County. SD233695 SD Hilaria rigida Scott D. White 2840 1995-4-12 San Bernardino Southeast Mojave Desert. Just north of State Rt. 62, at intersection w. Ironage Rd. SD242646 SD Hilaria rigida s.n. 1966-1-27 San Diego Mason Valley SD242647 SD Hilaria rigida Andrea Laltoo 9 2005-2-18 Imperial Yuha Desert Area of Critical Environmental Concern, wash to SW side of route 353, between route 346 and the Shellbeds campground road SD243770 SD Hilaria rigida Stephen Larson s.n. 1983-6-14 San Diego [Locality determined by SDNHM] North end of The Potrero SD243771 SD Hilaria rigida Stephen Larson s.n. 1983-6-14 San Diego [Locality determined by SDNHM] North end of The Potrero SD24438 SD Hilaria rigida A. J. Stover 208 1939-3-25 San Diego Oil wells, 5 miles north of Bensons (IPB 3/07) SD245213 SD Hilaria rigida Sarah J. De Groot 7119 2014-5-14 San Bernardino Bighorn Mountains: Along the south side of Hondo Wash, BLM road RC 1418 off the end of Tracy Blvd, west of Flamingo Heights. Northeast tip of Black Lava Butte. SD245214 SD Hilaria rigida Sarah J. De Groot 7014 2013-9-26 San Bernardino Northeast San Bernardino Mountains, Bighorn Mountain area: top of hill along Bighorn Mountain ridge, at summit '5641'. SD24532 SD Hilaria rigida Frank F. Gander 7108 1939-4-01 San Diego ca. 2 miles southwest of Carrizo Station (IPB 3/07) SD24565 SD Hilaria rigida Frank F. Gander 7141 1939-4-02 San Diego rocky slope, near Vallecitos Station (IPB 3/07) SD247551 SD Hilaria rigida Sarah J. De Groot 7262 2014-8-23 San Bernardino Along Excelsior Mine Road, N of road fork to Winters Pass, N of Kingston Wash, N end of Shadow Valley, NE of Shadow Mountains, SE of Kingston Range, W of Mesquite Mountains. About 5.1 air miles southwest of Winters Pass. Gentle hillside. SD247552 SD Hilaria rigida Sarah J. De Groot 7268 2014-8-23 San Bernardino Nipton Road about 0.25 mile southeast of I-15 W of Ivanpah Lake, W of Nipton, and W of Ivanpah Road. Wheaton Wash drainage aarea. East of Mescal / Ivanpah Range and Clark Mountain. Washes. SD250404 SD Hilaria rigida Duncan S. Bell 4648 2013-3-24 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. SD250579 SD Hilaria rigida Jon Rebman 28763 2014-9-24 Imperial Palo Verde Mountains: southwest of Palo Verde; on the rocky slopes & canyons just east of old Palo Verde Road; north of Milpitas Wash & west of Hwy 78 SD250580 SD Hilaria rigida Jon Rebman 28833 2014-9-26 Imperial Algodones Dunes area: east of Brawley; north of Hwy 78 at Glamis & west of the railroad & Ted Kipf Road; on the eastern edge of the dune field SD250581 SD Hilaria rigida Jon Rebman 28797 2014-9-25 Imperial Vicinity of Hauser Geode Beds: west of Milpitas Wash Road; west of Hwy 78; southwest of Palo Verde & southwest of the Palo Verde Mountains; along an arroyo SD250582 SD Hilaria rigida Jon Rebman 28778 2014-9-25 Imperial Palo Verde Mountains: southwest of Palo Verde; in the canyons & slopes west of old Palo Verde Road; north of Milpitas Wash & west of Hwy 78 SD250799 SD Hilaria rigida Kim Marsden 605 2009-3-23 San Diego Anza-Borrego Desert State Park; Carrizo Gorge, 4 miles SW of junction Hwy S-22 and Jojoba Wash SD250800 SD Hilaria rigida Larry Hendrickson 5936 2012-9-5 San Diego Anza-Borrego Desert State Park, South of West Butte. 1.0 mile N of intersection of State Hwy. 78 and Buttes Pass Road, at intersection of Buttes Pass Road and road to The Slot (Borrego Mountain Wash Road on some maps). SD250801 SD Hilaria rigida Bill Sullivan 1032 2010-3-9 San Diego Anza-Borrego Desert State Park east of Lute fault scarp and west of Palo Verde Wash, north side Borrego-Salton Seaway; at junction with Thimble Trail; at Call Box S22-319 SD250802 SD Hilaria rigida Bill Sullivan 819 2010-3-14 San Diego Anza-Borrego Desert State Park, Cactus Garden, 2.4 miles SE of junction Old Kane Springs Road and Highway 78 SD250803 SD Hilaria rigida Ruth R. Ehly 73 2011-2-24 San Diego Borrego Valley, De Anza Country Club, 2.9 air miles NNW of Christmas Circle, Borrego Springs. Just west of terminus of Catarina Drive. SD250804 SD Hilaria rigida Joe Barth 1611 2011-5-26 San Diego Canon BLM land. 1.8 miles ESE of the summit of the remote and grand mountain called Red Top. About 21 miles ~WNW of town of Ocotillo in Imperial County. SD250805 SD Hilaria rigida Larry Hendrickson 5957 2012-9-12 San Diego Anza-Borrego Desert State Park, alluvial fan S of Santa Rosa Mountains. Beside County Route S-22, 8.9 air miles ENE of Borrego Springs (Christmas Circle). 6.5 miles E of intersection of Henderson Canon Rd. and S-22, and 0.5 mile NW of Palo Verde Wash. SD250806 SD Hilaria rigida Larry Hendrickson 5945 2012-9-12 San Diego Anza-Borrego Desert State Park, Clark Valley. 7.3 air miles ENE of Borrego Springs (Christmas Circle) and 2.4 miles E of intersection of Henderson Canon Road and County Route S-22, approx. 180 meters S of S-22. SD252439 SD Hilaria rigida Bill Sullivan 1081 2011-4-27 San Diego Anza-Borrego Desert State Park, Vallecito Valley, Campbell Ranch, jeep trail to Storm Canon, 0.94 mile south of junction with Southern Emigrant Trail (County Road S-2) SD252440 SD Hilaria rigida Melvin M. Sweet 910 2010-3-27 San Diego Anza-Borrego Desert State Park; 0.4 miles S of State Hwy 78, along the Mine Wash Jeep Trail, which intersects Hwy 78 2.8 miles east of County Route S3 (Yaqui Pass). SD254505 SD Hilaria rigida A. C. Sanders 41275 2015-3-6 Imperial Sonoran (Colorado) Desert: Chocolate Mountains, north fork of Salvation Wash near head of canyon and top of hills, US Navy Chocolate Mountains Aerial Gunnery Range. SD255056 SD Hilaria rigida Sarah J. De Groot 7591 2015-9-29 San Bernardino Newberry Mountains; along Camp Rock Road at the SW end of narrows. North of Ord Mountain and Aztec Spring, ESE of Barstow. Rocky was sloping about 5ø, facing S7 W. SD255057 SD Hilaria rigida J. Mark Porter s.n. 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. SD255058 SD Hilaria rigida J. Mark Porter s.n. 2003-3-17 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area. SD256666 SD Hilaria rigida J. M. Andre 23972 2013-3-3 Imperial Yuha Desert, along Highway 98, 15.1 miles ESE of Ocotillo and west of Calexico. SD258839 SD Hilaria rigida Sarah J. De Groot 8033 2016-9-28 San Bernardino Whipple Mountains Wilderness, northwest of Parker, AZ and south of Havasu Lake. North slope of mountains 1.2 air miles northnorthwest of Axtel 4130, 2.2 air miles southsoutheast of War Eagle No. 1 mine. SD258840 SD Hilaria rigida Sarah J. De Groot 7607 2016-2-17 Riverside Santa Rosa Mountains; slide off east side of Martinez Mountain, north of Toro Canon, south of La Quinta, southwest of Thermal and Coachella. SD258841 SD Hilaria rigida Sarah J. De Groot 7692 2016-3-22 San Bernardino Clipper Mountains, south side just west of Bonanza Spring; road NS 206 ca. 3.0 miles northwest of Highway 66. SD259940 SD Hilaria rigida J.M. Andre 24809 2013-3-27 Riverside Rice Valley: east side of Arica Muntains, along Rice-Midland Rd., 2.2 mi. south of Rice (Hwy 62). Rice 7.5'Q SD262860 SD Hilaria rigida Susan T Welker s.n. 1993-4-27 San Diego Anza-Borrego Desert; North end of Half Hill dry Lake, south of Ocotillo Wells, east of Split Mountain Road. SD265884 SD Hilaria rigida Jon Rebman 32619 2017-3-18 Imperial Indian Pass area between Picacho and Black Mountain: east of the Algodones Dunes; east of Ogilby Rd. (S34) & just north of Indian Pass Road; along a canyon and its adjacent slopes SD265885 SD Hilaria rigida Jon Rebman 32532 2017-3-18 Imperial Indian Pass area to the north of the Cargo Muchacho Mountains: east of the Algodones Dunes; east of Ogilby Rd. (S34) & just north of Indian Pass Road; along a wash and adjacent volcanic flats SD27703 SD Hilaria rigida Allan Keller 207 1940-3-16 Imperial On road to Painted Gorge SD280691 SD Hilaria rigida Joseph Keefe 1615 1967-3-23 Riverside 29 Palms Highway, 3.8 miles north of Mission Creek Road, Morongo Valley. SD28637 SD Hilaria rigida Frank F. Gander 9210 1941-4-30 San Diego The Narrows (IPB 3/07) SD298 SD Hilaria rigida s.n. 1917-4-01 Imperial Dixie Land, Colorado Desert SD300 SD Hilaria rigida Unknown s.n. 1927-4-16 San Diego La Puerta Valley SD32506 SD Hilaria rigida Charles F. Harbison 44-82 1944-4-13 San Diego Dubber (IPB 3/07) SD35529 SD Hilaria rigida Lawrence Huey s.n. 1945-3-01 Imperial 5 miles west of Pilot Knob SD42307 SD Hilaria rigida Carl B. Wolf 10667 1941-5-26 San Bernardino Mojave Desert, Providence Mountains, 3.8 miles west of Columbia Mine SD46172 SD Hilaria rigida Annetta Carter 3235 1953-4-05 San Bernardino 20 miles south of Needles SD48474 SD Hilaria rigida E.K. Balls 22925 1958-3-20 Imperial 3.7 mi. n. of Ogilby on road to Blythe SD49301 SD Hilaria rigida Reid Moran 6517 1958-3-05 Imperial Pinto Wash SD6011 SD Hilaria rigida Frank Stephens s.n. 1929-10-01 San Diego La Puerta Valley SD83087 SD Hilaria rigida Helen V. Witham 1768 1972-12-12 Imperial open desert, 4 mi. east of Ocotillo SD85438 SD Hilaria rigida R. Mitchel Beauchamp 1781 1971-3-13 San Diego Sandy wash, 2 miles west of Stage Station, Vallecito Valley. (IPB 3/07) SD91990 SD Hilaria rigida Richard C. Schwenkmeyer s.n. 1975-2-28 Imperial East side of Fish Creek Mountains SDSU00101 SDSU Hilaria rigida Schwenkmeyer, Richard C. 1975-3-29 Imperial Collected at east base of Fish Creek Mt. SDSU00254 SDSU Hilaria rigida Gallup, A.H. 375 1949-3-28 Riverside In sandy wash near Palms to Pines Hwy. San Jacinto Mtn. Range. Slope: east. SDSU18251 SDSU Hilaria rigida Newhauser, Judy 1982-3-12 San Bernardino Power Line Road, North of Sunshine Peak, MCAGCC, Twentynine Palms, CA SFV115795 SFV Hilaria rigida P. G. Kilburn 803-A 1958-5-16 Riverside San Jacinto Mountains; 5 miles south of Palm Desert on Palms-Pines Highway (Highway 74). SFV115796 SFV Hilaria rigida T. R. Gordon 1293 1976-4-30 Riverside Mojave Desert; Southern Mojave Desert, Canong Highway 62, about 1.5 miles west of Parker Dam Highway. SJSU13026 SJSU Hilaria rigida C.W. Sharsmith 4517 1942-9-12 San Bernardino E of Soda Mts, W of Baker UC2015356 UCJEPS Hilaria rigida Tom Schweich 337 2004-4-20 San Bernardino Mesquite Mountains. On Kingston Road, 3 miles south of the Winters Pass Hills, 12 miles north of Valley Wells, climbing to Winters Pass in the Mesquite Mountains. UCR100003 UCR Hilaria rigida B.G. Pitzer 3301 1997-10-18 Imperial Hwy 78, 7.1 road miles south of town of Palo Verde and c. 5.4 miles north of Walter's Camp Road UCR102680 UCR Hilaria rigida B.G. Pitzer 3479 1998-2-02 Imperial Algodones Dunes, south terminus of Ogilby Road, on south side of Hwy I-8, south end of dunes; Algondones Dunes UCR104876 UCR Hilaria rigida George K. Helmkamp 2596 1998-1-24 Imperial Gravel Rd south of Hwy I-8. Rocky hills at west edge of Fort Yuma Indian Reservation UCR108114 UCR Hilaria rigida Christopher Christie 61 1997-1-20 San Bernardino Chemehuevi Mountains Wilderness Area UCR108122 UCR Hilaria rigida Jon P. Rebman 3771 1996-10-27 Imperial Algodones Dunes, north of Glamis UCR109580 UCR Hilaria rigida Richard D. Goeden s.n. 1977-1-25 Imperial E of Niland, along SW side of Coachella Canon 6, c. 2 miles NE of the East Highline Canal at Flowing Wells; Salton Trough UCR112125 UCR Hilaria rigida A.C. Sanders 21957 1998-6-04 San Bernardino Devil's Playground, along the powerline road near the rocky hills north of Sands siding; Eastern Mojave Desert UCR113514 UCR Hilaria rigida Mitch Provance 745 1998-6-23 San Bernardino east of Horsethief Flat, 0.5 km north of the Arrastre Creek Dam; Desert Slope of the San Bernardino Mtns. UCR115399 UCR Hilaria rigida June Latting s.n. 1977-12-11 Imperial east side of Algodones Sand Dunes, Pilot Knob Mesa, south side of I-8 at Ogilby Road; Sonoran Desert UCR118957 UCR Hilaria rigida George K. Helmkamp 3359 1998-4-19 San Bernardino northwest side of East Cronese Lake, about 15 miles west of Baker UCR120225 UCR Hilaria rigida Scott D. White 6906 1998-7-21 San Bernardino Desert slope above Lucerne Valley. Mitsubishi Cement proposed quarry expansion directly west of existing Cushenbury Quarry and south of processing plant UCR124099 UCR Hilaria rigida Steven R. Hill 33679 2001-5-3 Riverside NE-facing slopes of Mt. San Jacinto, Tramway Road in vicinity of road summit, Chino Canon, c. 3.8 mi west of CA Hwy 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area UCR124331 UCR Hilaria rigida P.A. Rauch s.n. 1966-4-15 San Bernardino 20 mi. SW of Baker, [Cronese Valley] on Barstow-Baker Hwy U.S. 91 UCR127818 UCR Hilaria rigida A.C. Sanders 27277 2003-10-5 San Bernardino along Hwy 62 east of Twentynine Palms, c. 1 mile east of Old Dale UCR129809 UCR Hilaria rigida Scott D. White 8344 2001-4-17 Riverside Shavers Valley, north of the I-10 Freeway, c. 16 miles east of Indio junction of I-10 and Calif. 111, near powerline access roads at unnamed freeway exit accessing pump station UCR130313 UCR Hilaria rigida A.C. Sanders 27221 2003-10-5 San Bernardino UC Burns Pinyon Ridge Reserve, south of Skyline Ranch Rd. c. 2 miles (air) ESE of Pioneertown, 1.5 mi. (air) NW of Yucca Valley, along wash beside Burns house UCR132683 UCR Hilaria rigida Beecher Crampton 2625 1955-4-27 San Bernardino 6.5 miles south [on Camp Rock Road?] of Daggett UCR133192 UCR Hilaria rigida G.R. Ballmer s.n. 1999-6-19 San Bernardino Kelso Dunes c. 10 miles SW of Kelso UCR134720 UCR Hilaria rigida June Latting 216 1958-4-06 San Bernardino Old Dale Road, 8 miles southeast of 29 Palms UCR135879 UCR Hilaria rigida A.C. Sanders 27992 2004-5-30 San Bernardino Lucerne Valley, on powerline road from Pisgah, at northern outlier of Cougar Buttes, 8 W of Soggy Dry Lake UCR145101 UCR Hilaria rigida A.C. Sanders 28909 2004-10-17 San Bernardino SW cove of Spy Mtn., east of Pipes Wash and Landers on a dirt road extension of 'University Blvd' going toward Giant Rock UCR145452 UCR Hilaria rigida A.C. Sanders 28955 2004-10-10 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 UCR151227 UCR Hilaria rigida Steve Boyd 11607 2004-10-13 San Bernardino Ivanpah Valley: upper bajada at NE base of the Ivanpah Mtns, south of Interstate 15 UCR15786 UCR Hilaria rigida Frank C. Vasek s.n. 1978-5-01 San Bernardino Saddle between Ord Mtn, and East Ord Mtn. UCR165641 UCR Hilaria rigida John F. Green s.n. 2005-2-2 Riverside Salton Basin, transect along Coachella Canal right-of-way, between siphons 29 and 30, c. 3 miles east of Desert Beach UCR1673 UCR Hilaria rigida Walter R. Moberly 620423--02 1962-4-23 San Bernardino 22 mi east of Twentynine Palms, along the Twentynine Palms/Rice Road UCR168498 UCR Hilaria rigida H.M. Hall 2847 1902-4-1 San Diego Coyote Canon UCR168499 UCR Hilaria rigida Victor Duran 3199 1932-5-12 San Diego head of Box Canon, near Mason Valley UCR168516 UCR Hilaria rigida Carl B. Wolf 10667 1941-5-26 San Bernardino Providence Mountains, 3.8 mi. west of Columbia Mine UCR168633 UCR Hilaria rigida Sarah J. De Groot 3259 2003-10-9 San Bernardino WHIPPLE MOUNTAINS: Wash beside Atchison, Topeka, and Santa Fe Railroad tracks, just east of Vidal and Highway 95 UCR168777 UCR Hilaria rigida Sarah J. De Groot 3222 2003-9-28 San Bernardino WHIPPLE MOUNTAINS: Along Highway 95 between Vidal Junction and Vidal UCR168983 UCR Hilaria rigida Sarah J. De Groot 4444 2004-10-5 San Bernardino WHIPPLE MOUNTAINS: SE of Savahia Peak, near Dollar Bill Mine. UCR171223 UCR Hilaria rigida John F. Green s.n. 2005-3-3 Imperial Salton Basin, east of Salton Sea, c. 4 miles north of Niland; Coachella Canal right of way, between siphons 10 and 11 UCR17234 UCR Hilaria rigida Frank C. Vasek s.n. 1976-10-30 San Bernardino South Pass, north of Interstate Hwy I-40 on University of California Sacramento Mountains Reserve UCR17266 UCR Hilaria rigida Frank C. Vasek s.n. 1976-10-29 San Bernardino 2 miles north of Goffs on the road to Lanfair Valley UCR177256 UCR Hilaria rigida Scott D. White 9171 2003-5-3 Imperial Fish Creek Mountains, unnamed canyon draining SW-facing slope of the mtns; south of the operating US Gypsum quarries UCR182548 UCR Hilaria rigida Mitch Provance 4907 2001-5-5 San Bernardino Clark Mountain, Keany Pass, narrow 4 mile long E to W oriented belt walked on the mesa and lower slopes south of the electric transmission lines UCR183270 UCR Hilaria rigida Jim Andre 7703 1993-5-21 San Bernardino Shadow Valley: along Excelsior Mine Rd in Shadow Valley, SE of Kingston Range UCR188177 UCR Hilaria rigida A.C. Sanders 34342 2007-10-5 San Bernardino Ord Mountains, south of Tyler Valley, above gas line road extension of Harrod Rd. from south/ Ord Mtn. Rd from the north, west slope of hill 4835 UCR200435 UCR Hilaria rigida Jim Andre 9234 2007-12-6 San Bernardino Kelso Dunes, along east side of Kelbaker Road, c. 3.5 miles south of Kelso UCR211009 UCR Hilaria rigida A.C. Sanders 36538 2009-3-23 San Bernardino north foot of Sleeping Beauty Mtn., valley c. 8.5 km west of Broadwell Dry Lake UCR211315 UCR Hilaria rigida Jim Andre 9861 2009-2-26 Imperial Borrego Desert, low hills c. 1.5 mi northeast of Ocotillo and Fwy I-8 UCR212553 UCR Hilaria rigida Jon P. Rebman 14387 2008-4-8 Imperial Freeman Properties (Truckhaven), west of the Salton Sea, northwest of Salton City, west of Hwy 86, Section 18 (SL 18), small arroyo off of Grave Wash UCR213392 UCR Hilaria rigida A.C. Sanders 37389 2010-3-15 Riverside pass between Chuckwalla Valley and Palo Verde Mesa, south of I-10 between the Mule and McCoy Mountains, c. 12 miles WSW (264 ° ) of Blythe UCR213393 UCR Hilaria rigida A.C. Sanders 37456 2010-3-16 Riverside SE side of McCoy Mountains, upper part of wash c. 4 W of Blythe Airport, c. 4 mi. ENE of McCoy Peak UCR213763 UCR Hilaria rigida Scott D. White 12598 2009-4-28 Riverside city of Desert Hot Springs, proposed development north of Pierson Blvd and east of Verbena Dr. UCR214699 UCR Hilaria rigida A.C. Sanders 37544 2010-3-23 Riverside Chuckwalla Valley, at SW foot of Palen Mountains UCR215045 UCR Hilaria rigida A.C. Sanders 38268 2010-5-4 San Bernardino Ivanpah Valley, western foot of metamorphic hill emerging from alluvium below Clark Mountain, 3.5 W (120 ° ) of Primm Valley Golf Club, 5.3 km W of I-15 UCR215958 UCR Hilaria rigida Jim Andre 11947 2010-3-18 San Bernardino Eastern end of Sacramento Mountains, along dirt road 4 miles south of I-40 at Hwy 95 junction, c. 1 mile east of Flattop Mtn. and 2 miles south of Eagle Peak UCR216267 UCR Hilaria rigida Jim Andre 10865 2009-8-15 San Bernardino Cima Dome, alng Morningstar Mine Road, c. 2 mi northeast of town of Cima, Mojave National Preserve UCR216624 UCR Hilaria rigida Jim Andre 13773 2010-4-23 San Bernardino Bristol Mountains, along powerline road at northwest end of range, c. 25 miles west of Kelso Dunes, 10 miles ENE of Ludlow and 6 mi. north of I-40 UCR216968 UCR Hilaria rigida Jim Andre 12225 2010-3-19 San Bernardino Turtle Mountains; east side of Turtle Mountains, c. 0.3 mi. west of Hwy 95, 6 miles NNW of Vidal Junction UCR218523 UCR Hilaria rigida Jim Andre 12436 2010-4-7 San Bernardino Mojave National Preserve, northeast end of Piute Range at foot of mountains along Old Homestead Road (historic), c. 6 mi west of Hwy 95 and 0.9 mi west of the Nevada border UCR218578 UCR Hilaria rigida Jim Andre 13052 2010-4-18 San Bernardino Bobcat Hills, Mojave National Preserve, just south of Rattlesnake Mine along dirt road from Von Trigger Hills to Mojave Road/Piute Range, c. 0.3 mi. south of Mojave Road jct. and 2.5 mi. east of Lanfair Rd. UCR219395 UCR Hilaria rigida A.C. Sanders 38604 2010-9-21 Inyo Pahrump Valley, east of the Nopah Range and NE of Calvada Springs, State Line Rd. 1.9 miles north of Old Spanish Trail Hwy UCR224066 UCR Hilaria rigida Jim Andre 14833 2010-9-29 San Bernardino Cima Dome, Mojave National Preserve; along Morningstar Mine Rd 3 NNE of Cima; Cima Dome UCR224685 UCR Hilaria rigida Charles Hughes 205 2010-3-22 Riverside about 9.4 miles south of Hwy 62, next to RR tracks UCR225092 UCR Hilaria rigida A.C. Sanders 39371 2011-5-3 Inyo southern Pahrump Valley, south of Old Spanish Trail Hwy, off a N-S road at SW edge of Calvada Springs, east of Turtle Rock Way between Moon Path Lane and Two Hawk Rd. UCR225474 UCR Hilaria rigida A.C. Sanders 39215 2011-4-20 Inyo Pahrump Valley, 2.3 km south of Old Spanish Trail Hwy along dirt road along NV state line, near east end of Moon Path Lane UCR226152 UCR Hilaria rigida Jim Andre 16481 2011-3-31 San Bernardino northern end of East Cronise Lake, along Cronise Lake Road 3.0 mi north of Hwy I-15, 16 mi west of Baker UCR227065 UCR Hilaria rigida Jim Andre 16095 2011-3-17 San Bernardino Dead Mountains, in deep canyon c. 2 miles east northeast of Manchester Peak, 2.5 miles west of Needles Hwy UCR227289 UCR Hilaria rigida Jim Andre 16274 2011-3-24 San Bernardino Clipper Mountains, north of Tom Reed Mine, 6.5 mi lesnorth of Hwy 66 at Danby Road UCR227609 UCR Hilaria rigida Thomas R. Stoughton 159 2010-4-22 Riverside Chuckwalla Valley. N of I-1 Wiley Well Rd exit on 4x4 rd towards McCoy Peak; Sonoran (Colorado) Desert UCR228388 UCR Hilaria rigida Thomas R. Stoughton 123 2010-4-7 Imperial southwest of Plaster City, north of Hwy 8, EC 350, main wash c. 1/2 mi west of Dunaway Road; Colorado Desert; Northeastern Colorado Desert region UCR228969 UCR Hilaria rigida Jim Andre 15252 2010-9-17 San Bernardino Cima Dome, Mojave National Preserve, along Cima Road c. 2 miles southwest of Cima UCR236841 UCR Hilaria rigida Jon P. Rebman 18885 2010-4-3 Imperial Southwest of Plaster City on BLM property in an area proposed for development of solar facility, S of Co Hwy S80 N of I-8, NE of Ocotillo & W of El Centro, along powerline road UCR239242 UCR Hilaria rigida Thomas R. Stoughton 166 2010-4-22 Riverside McCoy Wash, north of Hwy I-10, road north from Black Rock Road, south side of private land boundary; Mojave Desert; East Mojave Desert region UCR24074 UCR Hilaria rigida John C. Roos 3298 1947-3-01 Riverside Coachella Valley, [near Thousand Palms] 8 miles SE of Garnet UCR241804 UCR Hilaria rigida A.C. Sanders 40553 2013-2-28 Riverside Bradshaw Trail, 2.2 miles west of Hwy 78, 9.2 km SW (245 ° ) of Ripley UCR244286 UCR Hilaria rigida Jim Andre 19682 2011-6-14 San Bernardino Mojave National Preserve, Cima Dome; c. 2 NE of town of Cima, along transmission line midway between Cima and Morningstar Rds; Mojave National Preserve UCR245100 UCR Hilaria rigida A.C. Sanders 40365 2012-8-22 Imperial 0.6 W (293 ° ) of Rainey Well (windmill) along BLM Rd. 549 (Niland-Blythe), south of Bradshaw Trail UCR2456 UCR Hilaria rigida F.M. Reed 9841 1937-5-05 San Bernardino Cronese Valley UCR2457 UCR Hilaria rigida F.M. Reed 6941 1931-4-11 Riverside Chuckwalla Mesa, 'eastern Mohave Desert' , near Fullers Well [=Chuckwalla Well?] UCR2458 UCR Hilaria rigida F.M. Reed 4286 1920-3-24 Riverside Morongo Pass near Whitewater Station UCR2461 UCR Hilaria rigida F.M. Reed 5670 1927-3-19 Riverside Salt Creek Wash, east of Mecca UCR24648 UCR Hilaria rigida Katherine K. Muller 3091 1972-5-03 San Bernardino 12 miles northwest of Cima UCR249189 UCR Hilaria rigida Thomas R. Stoughton 661 2010-9-29 San Bernardino Bighorn Mountain Wilderness, Ruby Mountains. New Dixie Mine Road Site #2 UCR251776 UCR Hilaria rigida Thomas R. Stoughton 1162 2011-5-4 San Bernardino Transition between San Bernardino Mountains and Little San Bernardino Mountains, Big Horn Sheep Wilderness, New Dixie Mine Road, just west of Hwy 247 UCR253417 UCR Hilaria rigida Jim Andre 22177 2012-9-27 San Bernardino Castle Peaks, east of the New York Mountains, along Hart Mine Road 6.6 miles east of the junction with Ivanpah Road, c. 1 mile west of Hart Mine area UCR255980 UCR Hilaria rigida Naomi Fraga 4505 2013-9-12 San Bernardino Bighorn Mountain Wilderness, slope southeast of Blue Cut and west of the terminus of Mound Spring Road UCR258090 UCR Hilaria rigida Naomi Fraga 4581 2013-9-26 San Bernardino Bighorn Mountain Wilderness, saddle at head of west fork of Ruby Canon UCR259433 UCR Hilaria rigida Jim Andre 22427 2011-10-22 San Bernardino Providence Mountains, Mojave National Preserve, 1.1 miles east of Foshay Pass along transmission line road; Providence Mountains UCR260056 UCR Hilaria rigida A.C. Sanders 41275 2015-3-6 Imperial Chocolate Mountains, north fork of Salvation Wash near head of canyon and top of hills, US Navy Chocolate Mountains Aerial Gunnery Range UCR260103 UCR Hilaria rigida Duncan S. Bell 5634 2013-8-15 San Bernardino north of Dixie Mine Road on the west side of Ruby Mountain c. 0.25 air mile west of its summit UCR260218 UCR Hilaria rigida A.C. Sanders 41378 2015-3-10 Riverside north end of Chocolate Mountains, Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range UCR262366 UCR Hilaria rigida Laney Widener 011 2011-5-19 San Bernardino Bristol Mountains located to the north side of NN0013 at the top of the first hills UCR262908 UCR Hilaria rigida Sarah J. De Groot 7322 2014-9-22 San Bernardino north side of Hwy 62 just northwest of Clark's Pass, south end of the Sheep Hole Mountains, northeast edge of the Pinto Mountains, southeast of Dale Lake UCR262929 UCR Hilaria rigida Sarah J. De Groot 7350 2014-10-20 San Bernardino Southeast Vidal Valley, along powerline road west-southwest of Hwy 95 just southwest of Vidal Wash, 0.6 mi west-southwest from Hwy 95, 1.3 air mi south of Vidal, about 5 air mi west of the Colorado River. Northern bajada of the Riverside Mountains UCR263654 UCR Hilaria rigida David Fraker 022 2012-3-22 Riverside Palen Mountains, Coxcomb Monument Road [becomes Palen Pass Rd.] c. 8 miles east of Hwy 177 UCR264760 UCR Hilaria rigida Jon P. Rebman 28778 2014-9-25 Imperial Palo Verde Mountains, southwest of Palo Verde, west of old Palo Verde Road, north of Milpitas Wash & west of Hwy 78 UCR264802 UCR Hilaria rigida Jon P. Rebman 28763 2014-9-24 Imperial Palo Verde Mountains, SW of Palo Verde, on the rocky slopes and canyons just east of old Palo Verde Road, north of Milpitas Wash and west of Hwy 78 UCR266569 UCR Hilaria rigida A.C. Sanders 41904 2016-1-20 Imperial Chocolate Mountains, north fork of Salvation Wash near head of canyon and top of hills, US Navy Chocolate Mountains Aerial Gunnery Range UCR267208 UCR Hilaria rigida Fred M. Roberts 7918 2014-11-11 San Bernardino Chemehuevi Valley: tributary to Gary Wash at west base of hill with VABM Huevis, 0.2 km E SR 95 and 4.5 W Pyramid Butte UCR267656 UCR Hilaria rigida Jim Andre 30306 2014-5-1 San Bernardino Mojave National Preserve, far western end of Castle Peaks, 0.5 mile east of Ivanpah Road, 3.5 mile north of Barnwell and just east of New York Mountains UCR272021 UCR Hilaria rigida Thomas R. Stoughton 2056 2016-2-23 San Bernardino northeast slope of San Bernardino Mountains off Hwy 247 New Dixie Mine Road UCR272439 UCR Hilaria rigida Cheryl Sevilla 037 2015-3-18 Riverside San Gorgonio Wilderness Area, off the Pacific Crest Trail c. 2 air miles north-northwest from the Whitewater Preserve Ranger Station, on the hillside east of the Whitewater River drainage UCR275426 UCR Hilaria rigida Thomas R. Stoughton 960 2011-4-5 Riverside Blythe-Rice Road, ENE of Arica Mountains on Blythe-Rice Road, about 1 mile south of railroad crossing UCR275476 UCR Hilaria rigida Thomas R. Stoughton 955 2011-3-31 Riverside dune system along Midland-Rice Road, south of Arica Mountains UCR275640 UCR Hilaria rigida Jim Andre 34675 2016-2-22 San Diego Anza Borrego State Park, along north side of Route S-22 at scenic overlook, 8.6 mi east of Hwy 86, Salton City UCR276646 UCR Hilaria rigida Jim Andre 33665 2015-12-8 San Bernardino Whipple Mountains, far northwest corner of range, 0.2 mile east of US Hwy 95, 37 miles south of Needles UCR276666 UCR Hilaria rigida Jim Andre 33629 2015-11-9 San Bernardino Dead Mountains, far north end of range, at summit of BLM Road NM029, trasmission line road UCR277547 UCR Hilaria rigida Mitch Provance 10075 2008-3-15 Imperial E side of Hwy 78, about 7 miles NNE of intersection with Ogilby Rd., 2 miles N of Buzzards Peak, c. 2.5 miles NNE of the border checkpoint UCR278078 UCR Hilaria rigida Jim Andre 35682 2016-3-14 San Bernardino east side of Old Woman Mountains, along Sunflower Springs Road 0.6 mile west of Water Road at major transmission lines, c. 25. miles south of Hwy I-40 UCR278761 UCR Hilaria rigida Onkar Singh 5095 2015-3-16 Imperial Imperial Valley, Naval Air Facility El Centro Target 103, c. 12 W of Plaster City UCR279052 UCR Hilaria rigida A.C. Sanders 42774B 2017-3-9 Imperial plateau above slot canyon near head of Mammoth Wash, Chocolate Mountains UCR279256 UCR Hilaria rigida Onkar Singh 5780 2016-4-26 San Bernardino Fort Irwin National Training Center, c. 4.7 km SSW of Bitter Spring UCR281014 UCR Hilaria rigida Fred M. Roberts 7988 2016-3-5 Riverside Little Maria Mountains: west end, 4.3 km E Palen Pass and 2.2 W 'Peak 602 UCR281907 UCR Hilaria rigida A.C. Sanders 43358 2017-9-21 Riverside northern boundary of Chocolate Mountains Aerial Gunnery Range along south side of Bradshaw Trail at large wash crossing UCR282317 UCR Hilaria rigida Thomas R. Stoughton 803 2011-3-23 Riverside Chuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.' Old mine access road UCR284192 UCR Hilaria rigida Fred M. Roberts 8189 2017-3-26 Riverside Little Maria Mountains: northern foothills, c. 3.1 W Midland and 1.7 km W Rice-Midland Road UCR285353 UCR Hilaria rigida Jon P. Rebman 32532 2017-3-18 Imperial Indian Pass area to the north of the Cargo Muchacho Mountains, east of the Algodones Dunes, east of Ogilby Road (S34) and just north of Indian Pass Road UCR292105 UCR Hilaria rigida A.C. Sanders 43785 2020-1-16 Imperial Chocolate Mtns./Imperial Valley, along dirt track into range east of Coachella Canal and just inside CMAGR, NNW of Slab City near Siphon 9 of Coachella Canal, 6.6 NE (40 ° ) of Niland UCR30531 UCR Hilaria rigida John C. Roos 4301 1949-5-14 San Bernardino Rock Corral, north base of the San Bernardino Mtns. UCR32010 UCR Hilaria rigida E.W. Lathrop 7852 1977-11-13 Imperial 2.5 mi west of Plaster City [along Historic State Hwy 80] UCR33131 UCR Hilaria rigida James Henrickson 17292 1978-5-28 San Bernardino c. 5.5 miles west of Barstow, 0.5 mile north of Lenwood exit of Interstate 40 UCR37724 UCR Hilaria rigida George K. Helmkamp B--33 1983-10-08 San Bernardino TNC Big Morongo Preserve, in Big Morongo Canon, south of town of Morongo Valley in Big Morongo Canon UCR41472 UCR Hilaria rigida A.C. Sanders 6185 1986-3-08 Imperial Yuha Desert, c. 5 miles airline south of Plaster City, in fossil oyster beds along a dirt road c. 5 miles south of the Dunaway Road exit off Hwy I-8 UCR41510 UCR Hilaria rigida A.C. Sanders 6155 1986-3-08 Imperial north end of Algodones Dunes. East Mesa at east end of Montgomery Road, c. l mile east of Highline Canal UCR45005 UCR Hilaria rigida Larry F. LaPre 268 1986-9-19 Imperial Colorado River Valley, Cibola area. Lower Milpitas Wash, northwest of Three Finger Lake UCR55771 UCR Hilaria rigida John A. Adams 513 1966-3-17 San Diego Anza-Borrego State Park, 5 miles north of Borrego Springs UCR59709 UCR Hilaria rigida A.C. Sanders 9496 1989-9-19 Riverside Chocolate Mountains Aerial Gunnery Range, 1.75 km (airline) south of Tabaseca Tank, along the wash above 'Tabaseca Target' UCR59848 UCR Hilaria rigida George K. Helmkamp s.n. 1989-9-17 Imperial Colorado River Valley; 0.5 mile west of Palo Verde at 4th Street UCR60833 UCR Hilaria rigida Steve Boyd 1464 1986-3-13 Riverside west side of Palen Mountains, northeast of Desert Center. Upper bajada at base of range UCR64568 UCR Hilaria rigida Brian L. Phillips 1018 1990-9-14 San Bernardino Twentynine Palms Marine Corps Air-Ground Combat Center, Lava Artillery Range, Bullion Mountains, c. 5 miles (airline) NW of Cleghorn Pass UCR68066 UCR Hilaria rigida B.G. Pitzer 1746 1991-6-04 San Bernardino Twentynine Palms Marine Corps Base. Emerson Range c. 4 km south of Hidalgo Mtn., c. due east of north end of 'Artillery Hill' UCR68490 UCR Hilaria rigida B.G. Pitzer 1818 1991-7-28 San Bernardino Twentynine Palms Marine Corps Base, 'West' artillery range. Large wash c. 1 air km WNW of base golf course and c. 5 air km SE of Canon, c. 4 air km SSE of S tip of Deadman Lake UCR70234 UCR Hilaria rigida B.G. Pitzer 1843 1991-10-02 San Bernardino Twentynine Palms Marine Corps Base, 'Sand Hill' Artillery Range, c. 6.5 km airline SW of Surprise Spring, & 9 air km east of Landers. At Tortoise Study Plot 2 UCR75088 UCR Hilaria rigida A.C. Sanders 12140 1992-4-04 Riverside McCoy Mountains, within 0.5 mile of McCoy Spring UCR75541 UCR Hilaria rigida A.C. Sanders 13787 1993-4-24 Riverside SE end of San Bernardino Mountains, S end of Whitewater Bench, E side of the mouth of Whitewater Canon UCR84841 UCR Hilaria rigida A.C. Sanders 16205 1995-3-22 Riverside mouth of San Gorgonio Pass, alluvial fan just east of the mouth of Whitewater Canon between Windy Point & Hwy I-10, Coachella Valley UCR85750 UCR Hilaria rigida George K. Helmkamp 88--01 1994-4-26 Riverside Indio Hills; north of the landfill on Edom Hill UCR86308 UCR Hilaria rigida Scott D. White 2840 1995-4-12 San Bernardino Just north of State Route 62 (Twentynine Palms Hwy), at intersection with Ironage Road UCR92640 UCR Hilaria rigida George K. Helmkamp s.n. 1995-3-16 Riverside below Coxcomb Mountains, west of Rice Rd., 10.3 miles northeast of Desert Center UCR98430 UCR Hilaria rigida John Wear s.n. 1997-3-20 Riverside S of Chino Canon, at NW end of Palm Springs; San Jacinto Mtns, Colorado Desert, Coachella Valley UCSB012453 UCSB Hilaria rigida Flinck, Al; Cummings, Bob 1966-4-23 San Bernardino Road from Amboy to Kelso, Granite Mtns. UCSB012454 UCSB Hilaria rigida Patricia J. Gordon 444 1980-3-08 San Diego 20 miles SE from Anza-Borrego Park entrance, on Road S-2 UCSB012455 UCSB Hilaria rigida Joseph M. Keefe 200 1961-4-08 San Bernardino Kelso Sand Dunes, 2.4 miles south of Kelso on the road to Amboy UCSB012456 UCSB Hilaria rigida Schroeder, Gail 38 1976-3-18 San Diego .25 W. on Henderson Canon Rd. from intersection with Borrego Springs Rd., beside road UCSB012457 UCSB Hilaria rigida Joseph M. Keefe 859 1965-5-18 Riverside Along Pines to Palms Highway, 8 miles east of Pinyon Flats Campground UCSB012458 UCSB Hilaria rigida Corsino, Linda 58 1980-3-26 San Diego Just outside Anza-Borrego Park Boundary, on road between Park Headquarters and Borrego Springs UCSB012459 UCSB Hilaria rigida Rice, Stanley 94 1978-4-22 San Bernardino Along road leading from Interstate 40 (starting about 30 mi east of Ludlow) into Providence Mountains to Hole in the Wall campground; about 10 mi. south of campground UCSB012460 UCSB Hilaria rigida Fairbank, K. 156 1979-4-22 San Bernardino 1.5 miles north of the junction of Essex and Black Canon Road on Black Canon Road UCSB012461 UCSB Hilaria rigida John C. Roos 1965-9-05 Riverside 18 miles W. of Blythe UCSB012462 UCSB Hilaria rigida Lain, Maria 72 1978-4-23 San Bernardino Hole in the Wall Recreation Site, Providence Mountains UCSB012463 UCSB Hilaria rigida John R. Haller 1913 1961-8-25 San Bernardino U.S. Highway 91, 6.2 mi. SW of the California-Nevada state line, 43 NE of Baker UCSB012464 UCSB Hilaria rigida Illani Atwater 47 1961-3-26 San Bernardino South side of road, 20 miles west of Baker on U.S. Highway 91 UCSB012467 UCSB Hilaria rigida Fugle, Dorothy 1052 1982-5-15 San Bernardino Ivanpah Road, 3 miles east from its junction with Union Pacific Railroad, New York Mnts. UCSB012468 UCSB Hilaria rigida Joseph M. Keefe 1615 1967-3-23 Riverside Above Twentynine Palms Highway, 3.8 miles north of Mission Creek Road, Morongo Valley UCSB012469 UCSB Hilaria rigida Kiehn, David 22 1980-3-01 San Diego 100 feet from the south side of road S-2 in Sweeny Cyn. area 33 mi. SE. on road S-2 from its junction with Calif. 78 UCSB012470 UCSB Hilaria rigida Hook, Robin 93 1968-4-26 San Bernardino Black Canon Road, 9.8 miles north of junction with Mitchell Caverns Road, Providence Mtns. VVC1573 VVC Hilaria rigida A.C. Sanders 28909 2004-10-17 San Bernardino SW cove of Spy Mtn., east of Pipes Wash and Landers on a dirt road extension of ′University Blvd′ going toward Giant Rock VVC2234 VVC Hilaria rigida Jim Andre 11311 2009-10-24 San Bernardino Von Trigger Hills; growing on rocky knolls at Von Trigger spring. VVC3609 VVC Hilaria rigida Tim Thomas 6510 2015-4-11 San Bernardino Joshua Tree town, 1.3 road miles north on Sunfair from Hwy 62, old air field. VVC563 VVC Hilaria rigida Scott D. White 3032 1995-5-11 San Bernardino Ward Valley, N base of Iron mtns. Along powerline rd. on bajada above Danby Dry Lake VVC609 VVC Hilaria rigida P.J. MacKay 29 1996-9-07 San Bernardino Rodman Mountains, ca. Camp Rock Mine and Cinder Cone. CDA0015601 CDA Pleuraphis rigida G.F. Hrusa 10639 1993-4-05 San Bernardino Along Kelbaker Rd. immed. E of Kelso Sand Dunes. Mojave Desert. CDA0017429 CDA Pleuraphis rigida G.F. Hrusa 16752 2005-9-28 San Bernardino Rd. to Afton Cyn. Wildlife Refuge, +/- 2 mi. S of I-15. Mojave Desert. CDA0021210 CDA Pleuraphis rigida G.F. Hrusa 10599 1993-4-04 San Diego E side of Coyote Cyn. Anzo-Borrego Desert. CDA0032625 CDA Pleuraphis rigida T.C. Fuller 2925 1958-4-08 Imperial 1 mile west of Davis Lake, Colorado River. CDA0032626 CDA Pleuraphis rigida T.C. Fuller 7274 1961-10-19 San Bernardino Barstow Rd. 6.9 miles north of Lucerne Valley. CDA0032627 CDA Pleuraphis rigida A.A. Beetle 3174 1942-4-22 Imperial Junction of Route 80 and road to Ogilby. CDA0032628 CDA Pleuraphis rigida G.D. Barbe 4016 1982-11-02 Riverside 1.3 miles south of Wiley's Well, 0.7 mile north of Coon Hollow Campground. FSC0002121 FSC Pleuraphis rigida Leslie Zander 0098 1979-3-11 Imperial Collected in Colorado Desert, on S-22, 10 yds. east of San Diego Co. line. Found near roadside FSC0002122 FSC Pleuraphis rigida Linda Budzik 22 1980-4-02 San Diego Found in Colorado Desert, Anza-Borrego State Park. On Mountain Palm Springs Rd. 0.6 miles west of Great Southern Overland Stage Route. in crevice of rock at base of north facing slope. FSC0002123 FSC Pleuraphis rigida David A. Hopkins 92 1979-4-14 San Diego This plant found at the northeast entrance of Anza Borrego park on s22 FSC0002125 FSC Pleuraphis rigida Rimo Bacigalupi 6137 1958-2-17 Imperial In wash 1 1/2 miles south of Gold Rock Ranch, on road from Ogilby to Blythe, by way of Midway Well, Colorado Desert FSC0002126 FSC Pleuraphis rigida W. R. Smith 122 1958-4-02 Unknown Cronise Lake approx. 42 mi. east of Barstow on Hiway 466 & 91. East of Cat Mountain between secondary road and mountain. FSC0002127 FSC Pleuraphis rigida Chas. H. Quibell 255 1974-3-29 Unknown FSC0002128 FSC Pleuraphis rigida Dale Sanders 64-94 1964-3-26 San Diego 1/2 mile south of Peg Leg monument north of Borrego Springs growing in sand and gravel. Found along the roadside FSC0002129 FSC Pleuraphis rigida John Weiler 64095 1964-3-26 San Diego 6 miles east of Borrego Springs (1/2 mile south of Peg Leg Smith Monument) FSC0002130 FSC Pleuraphis rigida W. R. Smith 72a 1958-4-01 Unknown South Pass in Sacramento Mts. approx. 20 mi. west of Needles on Hiway 66. South from Hiway 66 in first wash running NW & SE on east side of summit of pass. GMDRC2647 GMDRC Pleuraphis rigida J. Andre 9234 2007-12-6 San Bernardino Kelso Dunes: Kelso Dunes: along east side of Kelbaker Rd, approx 3.5 mi. S. of Kelso, growing in deep sandy bank (dune) along margin of large wash 34 ° 58.1 N 115 ° 38.6 W. Elev. 2322 ft. GMDRC3568 GMDRC Pleuraphis rigida J. Andre 10865 2009-8-15 San Bernardino Cima Dome: Mojave National Preserve; along Morningstar Mine Rd, approx 2 NE of town of Cima, Mojave National Preserve USGS 7.5 min Quad: Mid Hills 35 ° 16.939' N 115 ° 29.8 W. Elev. 4286 ft. GMDRC4131 GMDRC Pleuraphis rigida J. Andre 12436 2010-4-7 San Bernardino Piute Range: Mojave National Preserve, NE end of Piute Range at foot of mountains along Old Homestead Rd (historic), approx. 6 W. of Hwy 95, 0.9 mi. W. of Nevada border GMDRC985 GMDRC Pleuraphis rigida G.L. Clifton 31216 2001-4-1 San Bernardino Kelso Dunes: Kelso Dunes: Kelso Dunes in sandy depressions between hummocks of big galleta grass Near 34 ° 53.5 N 115 ° 42.4 W. Elev. 2590 . JEPS122518 UCJEPS Pleuraphis rigida J. Andre, T. La Doux, H. Bartosh, R. Preston, JEPS Herbarium Workshop 12225 2010-3-19 San Bernardino Turtle Mountains; east side of Turtle Mountains, approx. 0.3 mi west of Highway 95, 6 miles NNW of Videl Junction. Videl NW 7.5' Q. JEPS123634 UCJEPS Pleuraphis rigida J. Andre, T. La Doux, Bart O'Brien 8762 2007-10-24 San Bernardino Clark Mountain Range, along Yates Well Road, approx. 1.5 miles NW of Colosseum Mine Road, N side of Clark Mountain. JEPS20661 UCJEPS Pleuraphis rigida Reino Alava, Rimo Bacigalupi, J. R. Sweeney, Aloha Alava 1960 1958-4-05 San Bernardino in gore corner formed by junction of US Highways 66 and 95 about 5 mi due s Needles; Mohave Desert, s of Needles JEPS20731 UCJEPS Pleuraphis rigida Roxana S. Ferris, Rimo Bacigalupi 13233 1958-3-19 Riverside on road to Midland and Bythe 2.4 mi s Rice JEPS22169 UCJEPS Pleuraphis rigida Rimo Bacigalupi, Paul C. Hutchison 6137 1958-2-17 Imperial 1.5 mi s Gold Rock Ranch (on road from Ogilby to Blythe, by way of Midway Well); Colorado Desert JEPS68840 UCJEPS Pleuraphis rigida Annie M. Alexander, Louise Kellogg 360 1939-5-02 San Bernardino Pisgah JEPS70529 UCJEPS Pleuraphis rigida Willis L. Jepson 4823 1912-6-08 San Bernardino near Barstow; Mohave Desert, near Barstow JEPS70530 UCJEPS Pleuraphis rigida Willis L. Jepson 4810 1912-6-07 San Bernardino sw Barstow (Mohave Desert); Mohave Desert JEPS70531 UCJEPS Pleuraphis rigida Willis L. Jepson 5485 1913-5-11 San Bernardino Needles JEPS70532 UCJEPS Pleuraphis rigida Willis L. Jepson 5241 1912-10-28 Riverside in the wash near Riverside Mts.; along the Colorado River, near Riverside Mts. JEPS72956 UCJEPS Pleuraphis rigida Willis L. Jepson 20544 1941-5-01 San Bernardino e end Kelso Sand Dunes; Mohave Desert, e end of Kelso Sand Dunes JEPS7454 UCJEPS Pleuraphis rigida G. Thomas Robbins, Rimo Bacigalupi 3431 1952-4-19 San Bernardino along U.S. Highway 91 about one mi w Cronese, Cronese Valley; Mohave Desert JEPS7455 UCJEPS Pleuraphis rigida G. Thomas Robbins, Rimo Bacigalupi 3432 1952-4-19 San Bernardino along U.S. Highway 91 about one mi w Cronese (Cronese Valley); Mohave Desert JEPS75358 UCJEPS Pleuraphis rigida Lawrence R. Heckard 4224 1976-3-15 Imperial along route 78, 0.8 mi e San Diego County line JEPS75610 UCJEPS Pleuraphis rigida Willis L. Jepson 17100 1935-4-20 San Diego Borrego Mt. JEPS76044 UCJEPS Pleuraphis rigida Willis L. Jepson 18358 1937-5-10 San Bernardino between Mitchell's Caverns and Essex JOTR16785 JOTR Pleuraphis rigida Walters, Jim s.n. 1967-5-12 Riverside Joshua Tree National Park. LOST HORSE RANGER STATION ACCESS ROAD JOTR16786 JOTR Pleuraphis rigida Baker, James K. & Baker, Ilisa T. s.n. 1966-10-20 Riverside Joshua Tree National Park. RYAN MOUNTAIN WATER STATION JOTR28779 JOTR Pleuraphis rigida La Doux, Tasha 1048 2003-9-4 San Bernardino Joshua Tree National Park. Little San Bernardino Mountains, near Key's ranch (Desert Queen Ranch) JOTR28939 JOTR Pleuraphis rigida La Doux, Tasha 1175 2005-3-30 Riverside Joshua Tree National Park. Next to Fried Liver Wash JOTR28940 JOTR Pleuraphis rigida La Doux, Tasha 1176 2005-3-30 Riverside Joshua Tree National Park. Next to Fried Liver Wash JOTR30071 JOTR Pleuraphis rigida La Doux, Tasha 1714 2006-10-3 Riverside Joshua Tree National Park. Pinto Basin: (Stop 1) east side of Hexie Mtns. at mouth of Pinkham Spring Canon JOTR31755 JOTR Pleuraphis rigida La Doux, Tasha 2071 2009-9-24 San Bernardino Joshua Tree National Park. North Coxcomb Mountains, east of Clark's Pass; Stop 1: south of Highway 62, sandy wash at base of rocky slopes JOTR31962 JOTR Pleuraphis rigida La Doux, Tasha 2199 2011-4-14 Riverside Joshua Tree National Park. Southwest Eagle Mountains; west of Lost Palms Canon; rocky/gravelly bajada north of the Aqueduct Rd. JOTR32119 JOTR Pleuraphis rigida La Doux, Tasha 2277 2011-4-26 Riverside Joshua Tree National Park. Pleasant Valley, southwestern edge of Hexie Mountains; sandy flats at base of mountains and northern edge of valley (Stop 4) JOTR32449 JOTR Pleuraphis rigida La Doux, Tasha 2199 2011-4-14 Riverside Joshua Tree National Park. Southwest Eagle Mountains; west of Lost Palms Canon; rocky/gravelly bajada north of the Aqueduct Rd. POM1025 RSA Pleuraphis rigida I. M. Johnston s.n. 1917-4-4 Riverside Mouth of Andreas Canon. POM1026 RSA Pleuraphis rigida I. M. Johnston s.n. 1917-4-04 Riverside Palm Canon. Colorado Desert. POM1027 RSA Pleuraphis rigida H. M. Hall 2847 1902-4-1 Riverside Coyote canyon POM116973 RSA Pleuraphis rigida Marcus E. Jones s.n. 1906-5-02 San Bernardino Kelso POM116974 RSA Pleuraphis rigida Marcus E. Jones s.n. 1903-5-11 Riverside Whitewater. POM117048 RSA Pleuraphis rigida Marcus E. Jones s.n. 1884-5-03 San Bernardino The Needles. POM118377 RSA Pleuraphis rigida Marcus E. Jones s.n. 1924-2-27 Riverside Desert Center. Chuckwalla Valley. POM121845 RSA Pleuraphis rigida Marcus E. Jones s.n. 1926-1-21 San Diego Yaqui Well, Colorado Desert. POM13268 RSA Pleuraphis rigida E. C. Jaeger 123 1921-4-05 Riverside Murray Canon. POM156234 RSA Pleuraphis rigida Le Roy Abrams 3155 1903-4-20 Imperial Signal Mountain POM192667 RSA Pleuraphis rigida Marcus E. Jones 24755 1929-9-16 Riverside East of Desert Center. POM194917 RSA Pleuraphis rigida Roxana S. Ferris 7178 1928-4-22 Imperial 5 miles south Midway Well on the Blythe/Glamis Rd POM214743 RSA Pleuraphis rigida Victor Duran 3199 1932-5-12 San Diego Head of Box Canon, near Mason Valley POM296106 RSA Pleuraphis rigida Lyman Benson 4159 1933-3-31 Riverside US 66 [US 60], Palm Springs. Mt. Range San Jacinto. POM296112 RSA Pleuraphis rigida Lyman Benson 8260 1937-4-25 San Bernardino Cronese Valley, 18 miles W of Baker, Cronese Lake Watershed. POM320420 RSA Pleuraphis rigida Lynne Hayden 57 1970-3-24 Riverside Palm Springs, Chino Canon, first alluvial fan POM431207 RSA Pleuraphis rigida J. C. Roos s.n. 1965-9-05 Riverside 18 miles W of Blythe. POM47181 RSA Pleuraphis rigida Mary F. Spencer 1529 1920-3-17 Riverside Whitewater. POM7107 RSA Pleuraphis rigida P. A. Munz 2790 1919-5-07 Riverside Mouth of Tahquitz Canon. POM8116 RSA Pleuraphis rigida Mary F. Spencer 1533 1920-3-27 Riverside Palm Springs. POM8365 RSA Pleuraphis rigida P. A. Munz 4137 1920-5-21 San Bernardino Vicinity of Bonanza King Mine, East Slope of Providence Mountains, Mojave Desert. POM8492 RSA Pleuraphis rigida P. A. Munz 3538 1920-3-03 San Bernardino Fenner POM9300 RSA Pleuraphis rigida P. A. Munz 3384 1920-4-02 San Bernardino Colorado Desert, Blythe Junction RSA0011629 RSA Pleuraphis rigida J. Russell Bruff s.n. 1979-4-3 Riverside 3 mi. south of Garnet RSA0012780 RSA Pleuraphis rigida Duncan S. Bell 4573 2013-3-17 Imperial BLMThe Jacumba Mountains; collecting in Davies Canon, approximately 3.75 air miles south of the town of Ocotillo.; Coyote Wells RSA0013229 RSA Pleuraphis rigida April Garbat 45 2013-4-9 Riverside BLMBlythe-Rice Rd at a wash at the bottom of Rice Valley, 1.9 mi S of Hwy 62. RSA0013231 RSA Pleuraphis rigida April Garbat 35 2013-3-28 San Bernardino BLMHwy 62 in a sandy valley ~16 mi E of junction with Hwy 177. RSA0013243 RSA Pleuraphis rigida Justin M. Wood 1895 2010-5-25 San Bernardino Horsethief Flat via SBNF road 3N03A.; Big Bear City RSA0013272 RSA Pleuraphis rigida April Garbat 27 2013-3-27 Riverside BLMHwy 1 N of Hwy 10, N of Palen Pass Rd. On E side of the road RSA0013275 RSA Pleuraphis rigida April Garbat 43 2013-4-9 Riverside BLMGraham Pass Rd in a wash 5.6 mi S of Chuckwalla Springs Rd. RSA0014312 RSA Pleuraphis rigida Justin M. Wood 1547 2010-4-30 Riverside Coachella Valley: Thousand Palms, just E of intersection of Ramon Rd. and Vista de Oro, just NE of Edison substation.; Myoma RSA0014646 RSA Pleuraphis rigida April Garbat 88 2013-6-13 San Bernardino BLM Rd 021 off Sunflower Springs Rd S of Essex, both sides of the road RSA0014647 RSA Pleuraphis rigida April Garbat 63 2013-5-2 San Bernardino Approx. 4.2 W of Hwy 95. Along Pyramid Butte Rd/BLM rd 634/ East Mojave Heritage Trail in wash N of road by a knobby hill. RSA0015604 RSA Pleuraphis rigida Erika Gardner 507 2013-9-26 San Bernardino BLMBighorn Mountain Wilderness. Along granitic ridgeline south of New Dixie Mine Rd. approximately 8.6 miles west of Old Woman Springs Rd. RSA0019778 RSA Pleuraphis rigida April Garbat 10 2013-3-20 Riverside BLMGraham Pass Rd, S 5 miles from junction with Chuckwalla Rd. In drainage/wash to west of rd, 1 mile S of power lines. RSA0020187 RSA Pleuraphis rigida Duncan S. Bell 5589 2013-8-6 San Bernardino BLMBighorn Mountains; on the west side of Old Woman Springs Road near the community of Landers, about 2 air miles northeast of Ruby Mountain.; Landers RSA0020279 RSA Pleuraphis rigida Duncan S. Bell 5952 2013-9-21 San Bernardino BLMCastle Mountains; south section of the range, just to the southeast of Hart Mine.; Hart Peak RSA0020880 RSA Pleuraphis rigida Jim Andre 23972 2013-3-3 Imperial Yuha Desert, along Highway 98 15.1 miles ESE of Ocotillo, and west of Calexico. Sandy area near Pinto Wash crossing.; Yuha Basin 7.5 RSA0021527 RSA Pleuraphis rigida Jim Andre 24809 2013-3-27 Riverside Rice Valley; east side of Arica Mountains, along Rice-Midland Rd, 2.2 mi. south of Rice (Hwy 62).; 7.5 Rice RSA0021839 RSA Pleuraphis rigida Duncan S. Bell 5634 2013-8-15 San Bernardino BLMBighorn Mountains; north of New Dixie Mine Road on the west side of Ruby Mountain about 0.25 air mile west of its summit.; Landers RSA0026126 RSA Pleuraphis rigida Jim Andre 25652 2013-9-19 San Bernardino Castle Mountains: along Walking Box Ranch Rd., approx. 2 miles NE of Hart Mine area, at Jct of BLM road NN120.; 7.5 Hart Peak RSA0027562 RSA Pleuraphis rigida April Garbat 96 2013-8-1 San Bernardino Dale Mining District. Several miles S of Hwy 62, toward Virginia Dale Mine. In shallow broad wash all along road, before and after the pass. On BLM Rd 1934/Gold Crown Rd. RSA0027563 RSA Pleuraphis rigida April Garbat 97 2013-8-1 Riverside BLMChuckwalla Valley. Intersection of Graham Pass Rd and Chuckwalla Valley Rd. RSA0027583 RSA Pleuraphis rigida Kristin Forgrave 38 2013-8-13 San Bernardino BLMFrom Desert Center, take Hwy 177 north for 17 miles. Turn E on Palen Pass Rd/Coxcomb Monument Rd and travel 2.3 miles to site. RSA0027613 RSA Pleuraphis rigida April Garbat 94 2013-7-31 San Bernardino Coyote Lake, near Copper Mtn and Twentynine Palms. From Yucca Valley, take Hwy 62 E for 10.8 miles. Turn left on Coyote Valley Rd, continue for 3.1 miles. Turn right on Reagan Rd and continue for 2 miles. BLM Rd 1716 and 1725. RSA0027626 RSA Pleuraphis rigida Deidre Conocchioli 113 2013-10-23 Imperial BLMNorth of Yuha Desert. From El Centro: Take I-8 W for 13.3 miles. Exit at Dunaway Rd, turn right onto Dunaway road and continue for 0.7 miles to collection site on west side of road. RSA0030740 RSA Pleuraphis rigida Bonnie C. Templeton 1009 1930-4-09 Riverside North of Palm Springs. Colorado Desert. RSA0031253 RSA Pleuraphis rigida Naomi Fraga 4581 2013-9-26 San Bernardino BLMBighorn Mountain Wilderness. Saddle at the head of the west fork of Ruby Canon.; Bighorn Canon RSA0031411 RSA Pleuraphis rigida April Garbat 90 2013-7-10 San Bernardino BLMMidland-Vidal Rd near Vidal, S of the railroad tracks. RSA0031414 RSA Pleuraphis rigida Deidre Conocchioli 36 2013-8-29 San Bernardino BLMSouthern rim of Danby Lake (dry bed). From Parker, travel 43.5 miles on CA-HWY 6 West. Collection made on south side of highway. RSA0033787 RSA Pleuraphis rigida Naomi Fraga 4624 2013-10-9 San Bernardino Bighorn Mountain Wilderness. South of BLM Road RC3208.; Bighorn Canon RSA0033795 RSA Pleuraphis rigida Naomi Fraga 4648 2013-11-6 San Bernardino BLMBighorn Mountain Wilderness. Just above head of east fork of Ruby Canon.; Bighorn Canon RSA0033983 RSA Pleuraphis rigida Naomi Fraga 4505 2013-9-12 San Bernardino San Bernardino National ForestBighorn Mountain Wilderness. On slope SE of Blue Cut and west of the terminus of Mound Spring Road.; Onyx Peak RSA0039884 RSA Pleuraphis rigida Sarah J. De Groot 7131 2014-5-21 San Bernardino Bighorn Mountains: Bighorn Wilderness area, along road toward old mine, west of Vaughn Spring. Northwest of Pioneertown and Yucca Valley, north of Tip Top Mountain. RSA0039915 RSA Pleuraphis rigida Sarah J. De Groot 7068 2014-4-16 San Bernardino Bighorn Mountains: New Dixie Mine Road (BLM RC 2330) at eastern-most big wash, southeast of Ruby Mountain, west of Landers. RSA0039925 RSA Pleuraphis rigida Sarah J. De Groot 7119 2014-5-14 San Bernardino Bighorn Mountains: Along the south side of Hondo Wash, BLM road RC 1418 off the end of Tracy Blvd, west of Flamingo Heights. Northeast tip of Black Lava Butte. RSA0041455 RSA Pleuraphis rigida Duncan S. Bell 6278 2014-3-20 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake.; Hayfield RSA0041869 RSA Pleuraphis rigida Jim Andre 26339 2013-10-14 San Bernardino NPSCima Cinder Cones; Mojave Natl. Preserve; along Aiken Mine Rd, 4.2 mi. northeast of Aiken Mine.; Cow Cove 7.5' RSA0042425 RSA Pleuraphis rigida Sarah J. De Groot 7014 2013-9-26 San Bernardino Northeast San Bernardino Mountains, Bighorn Mountain area: top of hill along Bighorn Mountain ridge, at summit '5641'. RSA0047012 RSA Pleuraphis rigida Sarah J. De Groot 7350 2014-10-20 San Bernardino BLMSoutheast Vidal Valley; along powerline road west-southwest of Highway 95 just southwest of Vidal Wash, 0.6 mile west-southwest from Highway 95, 1.3 air miles south of Vidal, about 5 air miles west of the Colorado River.; Vidal 7 Northern bajada of the Riverside Mountains. RSA0047670 RSA Pleuraphis rigida Jim Andre 26205 2013-3-20 San Bernardino BLMIn low sandy hills on east side of range, 0.7 mi. west of Needles Hwy, approx. 4 N. of I-40 at Needles.; Needles NW 7.5' RSA0050252 RSA Pleuraphis rigida J. M. Andre 25437 2013-9-5 San Bernardino BLMalong CA/NV border (in CA), 1.3 W of Primm NV, growing at base of limestone hills; Ivanpah Lake 7.5' RSA0050467 RSA Pleuraphis rigida Sarah J. De Groot 7322 2014-9-22 San Bernardino BLMNorth side of Highway 62 just northwest of Clark's Pass, south end of the Sheep Hole Mountains, northeast edge of the Pinto Mountains, southeast of Dale Lake.; Clark's Pass 7.5' RSA0050487 RSA Pleuraphis rigida Duncan S. Bell 6216 2014-3-7 San Bernardino Newberry Mountains; northeast section of mountain range; collecting within the Newberry Mountains Wilderness area; about 4 air miles north of Kane Springs. RSA0060518 RSA Pleuraphis rigida Sarah J. De Groot 7262 2014-8-23 San Bernardino BLMAlong Excelsior Mine Road, north of road fork to Winters Pass, north of Kingston Wash, north end of Shadow Valley, northeast of Shadow Mountains, southeast of Kingston Range, west of Mesquite Mountains.; East of Kingston Peak 7.5'About 5.1 air miles southwest of Winters Pass. RSA0065643 RSA Pleuraphis rigida Cheryl Sevilla 37 2015-3-18 Riverside BLMTransverse Ranges; San Bernardino Mountains region: San Gorgornio Wilderness Area; off the Pacific Crest Trail about 2 air miles north-northwest from the Whitewater Preserve Ranger Station; on the hillside east of the Whitewater River drainage. RSA0067715 RSA Pleuraphis rigida Cheryl Sevilla 48 2015-3-23 San Bernardino BLMMojave Desert; Newberry Mountains; Along Camp Rock Road 6.4 air miles south of I-40; 1.8 air miles south of Azucar Mine. RSA0067930 RSA Pleuraphis rigida J. M. Andre 30306 2014-5-1 San Bernardino NPSCastle Peaks: Mojave Natl. Preserve; far western end of Castle Pks, 0.5 mi. east of Ivanpah Rd, 3.5 mi. north of Barnwell and just east of New York Mtns.; Ivanpah 7.5' RSA0068132 RSA Pleuraphis rigida Cheryl Sevilla 69 2015-3-25 San Bernardino Mojave Desert; Water Valley; north of Hinkley; east of Harper Dry Lake; off Hinkley road on BLM road 6285; 7.7 air miles north of Highway-58. RSA0072270 RSA Pleuraphis rigida Jon Rebman 28833 2014-9-26 Imperial Algodones Dunes area: east of Brawley; north of Hwy 78 at Glamis & west of the railroad & Ted Kipf Road; on the eastern edge of the dune field. RSA0082493 RSA Pleuraphis rigida Jim M. Andre 31523 2015-3-29 San Bernardino Ivanpah Valley; 0.3 mi. east of RR tracks along BLM Rd# NN113, about 8 mi. south of Primm, approx. 4 mi. north of Nipton, just in CA.; Desert 7.5' RSA0084224 RSA Pleuraphis rigida Jim Andre 19524 2011-9-19 San Bernardino Cima Dome: 0.5 NE of Cima Rd at summit, approx. 1 mi. N. of Kessler Spring.; Cima Dome 7.5' RSA0084229 RSA Pleuraphis rigida Jim Andre 19591 2010-4-2 San Bernardino NPSJoshua Tree National Park; 1.5 mi. southeast of Clarks Pass (Hwy 62).; Clarks Pass 7.5' RSA0084769 RSA Pleuraphis rigida Jim Andre 27610 2014-3-3 San Bernardino BLMNewberry Mountains: in upper Kane Wash drainage, south end of Newberry Mtns, along pipeline road 0.8 mi. east of Camp Rock Rd., northeast of Ord Mtn.; Ord Mountain 7.5' Quad. RSA0084794 RSA Pleuraphis rigida Jim Andre 26956 2013-9-11 San Bernardino NPSMojave Natl. Preserve: along Essex Rd, 5.1 mi. north of jct with Interstate 4 West of Blind Hills 7.5' RSA10817 RSA Pleuraphis rigida Victor Duran 3199 1932-5-12 San Diego Head of Box Canon, near Mason Valley RSA113531 RSA Pleuraphis rigida E. K. Balls 21444 1955-9-24 San Bernardino Grown in botanic garden; Claremont RSA114072 RSA Pleuraphis rigida Annetta Carter 3235 1953-4-05 San Bernardino 20 miles south of Needles RSA124065 RSA Pleuraphis rigida E. K. Balls 22925 1958-3-20 Imperial 3.7 N of Ogilby on road to Blythe. RSA129650 RSA Pleuraphis rigida H. S. Yates 5431 1936-4-07 Riverside 10 miles E of Whitewater; elv. 1000 ft; Thermal RSA129651 RSA Pleuraphis rigida D. Axelrod 347 1935-5-13 San Bernardino 3.5 miles ESE of Fifteenmile Point.; Deep Creek RSA129652 RSA Pleuraphis rigida H. S. Yates 6424 1937-3-23 Riverside 5 miles NW of Edon RSA129653 RSA Pleuraphis rigida H. S. Yates 6650 1937-6-25 San Bernardino 1/2 mile NW of Monarch Flat.; San Gorgonio RSA172331 RSA Pleuraphis rigida R. F. Thorne 32455 1963-4-12 San Bernardino 9 miles NE of Yucca Valley, SW edge Mojave Desert. RSA20226 RSA Pleuraphis rigida Roxana S. Ferris 9500 1938-5-14 San Bernardino 1.5 miles from Box S Ranch on road to Box S Springs RSA211985 RSA Pleuraphis rigida E. C. Twisselmann 15623 1969-6-04 San Bernardino Water Valley (NE of Harper Dry Lake) RSA24262 RSA Pleuraphis rigida C. B. Wolf 9838 1941-1-23 San Bernardino 8.5 miles N of Essex on road to Cima RSA24688 RSA Pleuraphis rigida C. B. Wolf 10199 1941-5-01 San Bernardino S.E. end of Kelso Sand Dunes, 7 miles S. of Kelso on Amboy Rd. RSA247075 RSA Pleuraphis rigida R. F. Thorne 43942 1973-6-19 San Bernardino E Mojave Desert, Providence Mountains: Globe Canon, N end of mountains c. 7 miles NE of Kelso (by road); upper part of canyon below mine RSA248045 RSA Pleuraphis rigida R. F. Thorne 43592 1973-5-30 San Bernardino 1 mile E of Joshua Tree RSA251992 RSA Pleuraphis rigida R. F. Thorne 43735 1973-5-31 San Bernardino E Mojave Desert, N. slope New York Mountians, 0.5 mile N of Vanderbilt RSA269504 RSA Pleuraphis rigida B. A. Prigge 759 1973-4-28 San Bernardino Clark Mt Range, 5 miles E of Mt Pass, 1.2 miles W of I-1 Nipton Rd, [map included with specimen] RSA271051 RSA Pleuraphis rigida James Henrickson 12584 1973-8-29 San Bernardino 63 (air) miles ENE of Baker, 3.6 (rd) miles E of Hwy 15 Nipton Road towards Nipton RSA272047 RSA Pleuraphis rigida James Henrickson 16285 1977-10-22 San Bernardino 4 miles E of Cima on road towards Canon N side of Mid Hills just W of New York Mountains. RSA27235 RSA Pleuraphis rigida C. L. Hitchcock 6138 1940-4-20 San Bernardino NE part of county in desert wash, 4 miles below Horse Springs RSA272371 RSA Pleuraphis rigida James Henrickson 17292 1978-5-28 San Bernardino Ca 5.5 miles W of Barstow, 0.5 mile N of Lenwood exit of Interstate 40 RSA273302 RSA Pleuraphis rigida J. P. Smith 6887 1973-6-10 Riverside Joshua Tree National Monument, Riverside County. RSA27478 RSA Pleuraphis rigida I. L. Wiggins 9612 1941-3-24 Imperial 6 miles northeast of Niland on road to Beal Well.[Lat. 33 ° 16'39.5' Long 115Y 25' 45'] RSA275262 RSA Pleuraphis rigida B. A. Prigge 2350 1977-10-29 San Bernardino Mojave Desert, Granite Mountains: Willow Springs area. RSA275575 RSA Pleuraphis rigida R. F. Thorne 51238 1978-5-09 San Bernardino Kelso Dunes: southern edge of Kelso Dunes near Bull Canon Wash from Granite Mountains RSA27805 RSA Pleuraphis rigida C. L. Hitchcock 5934 1940-4-03 Riverside 1 1/2 mi. northeast of Cottonwood Spring along 29 Palms Road, Joshua Tree Nat. Monument. RSA278661 RSA Pleuraphis rigida B. A. Prigge 2551 1978-4-21 San Bernardino 2.9 miles NW of Lavic near railroad crossing RSA281051 RSA Pleuraphis rigida S. F. Warrick 96 1978-5-25 San Bernardino Granite Mountains, Eastern Mojave Desert. Upper Bull Canon. RSA288802 RSA Pleuraphis rigida R. F. Thorne 50736 1977-10-29 San Bernardino Providence Mountains: Bonanza King Mine area. RSA289291 RSA Pleuraphis rigida Charles Convis 114 1980-4-08 Imperial Western Salton Basin, 27 km due WNW of Westmorland. RSA296027 RSA Pleuraphis rigida B. G. Baldwin 56 1980-4-26 San Bernardino 11 miles N, 14.5 miles W of Kelso RSA296883 RSA Pleuraphis rigida R. D. Stone 50 1980-4-23 San Bernardino Bajada above Kingston Wash, SE flank of range, 0.25 mile N of BM 2646 RSA297397 RSA Pleuraphis rigida Larry E. DeBuhr 2426 1976-11-12 San Bernardino Along I-15; about 1 mile east of Afton turnoff. RSA301617 RSA Pleuraphis rigida Greg de Nevers 75 1980-4-28 San Bernardino Crystal Spring RSA326158 RSA Pleuraphis rigida John F. Emmel 834 1982-10-05 Riverside Northeast slope of Santa Rosa Mountains; near base of mts. Guadalupe Creek RSA336042 RSA Pleuraphis rigida R. F. Thorne 52021 1978-4-23 Riverside Chino Canon RSA342565 RSA Pleuraphis rigida R. F. Thorne 54055 1980-4-16 Riverside Sandy bench along Whitewater River, E of bridge and levee and below W-facing bluff. RSA349063 RSA Pleuraphis rigida R. F. Thorne 51810 1978-5-05 San Bernardino Cushenbury Canon: lower end of canyon, north slope of San Bernardino Mountains. RSA349862 RSA Pleuraphis rigida T. S. Elias 9219 1985-3-15 San Diego Anza-Borrego Desert State Park; Arroyo Hueso RSA38919 RSA Pleuraphis rigida Edith A. Purer 6299 1935-4-19 Imperial Along old stage route RSA414075 RSA Pleuraphis rigida Robert Gustafson 2567 1982-5-19 Riverside Pines to Palms Hwy (Hwy. 74), vicinity of Pinyon Flat campground. RSA414076 RSA Pleuraphis rigida M. B. Dunkle 4904 1937-3-25 San Diego 20 miles W of Kane Spring RSA414077 RSA Pleuraphis rigida M. B. Dunkle 4574 1935-4-17 Imperial E of Beal Well RSA414079 RSA Pleuraphis rigida Christopher Davidson 7821 1979-4-29 Riverside West of Indio, 3 miles E of Date Palm Dr. RSA414080 RSA Pleuraphis rigida Anstruther Davidson s.n. 1893-4-10 Riverside Palm Springs. RSA414081 RSA Pleuraphis rigida J. S. Stubblefield s.n. 1934-9-12 Riverside Between Desert Center & Blythe. RSA414082 RSA Pleuraphis rigida Christopher Davidson 7785 1979-4-28 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob RSA414083 RSA Pleuraphis rigida C. B. Wolf 10667 1941-5-26 San Bernardino Mojave Desert, Providence Mts., 3.8 miles W of Columbia Mine RSA414084 RSA Pleuraphis rigida M. B. Dunkle 3926b 1934-3-30 San Bernardino Rock Corral RSA414085 RSA Pleuraphis rigida Robert M. Perkins 421 1937-4-13 San Bernardino Road to Rice RSA414086 RSA Pleuraphis rigida M. B. Dunkle 3456 1933-5-07 San Diego Mesa east of Borrego Mt. RSA414087 RSA Pleuraphis rigida Edith A. Purer 7396 1938-4-15 San Diego Borego Valley. RSA414088 RSA Pleuraphis rigida Paul C. Silva 26(4) 1941-3-29 San Diego Foot of Palm Canon, Borrego Valley, Colorado Desert. RSA456758 RSA Pleuraphis rigida D. Charlton 1847 1988-5-07 San Bernardino E Mojave Desert, on ranch road between Essex road and Black Canon Road at Colton Well. Providence Mountains; E of Mitchell Caverns. RSA4907 RSA Pleuraphis rigida C. B. Wolf 3023 1932-4-27 Riverside Colorado desert, 3/4 mile west of Utopia on Mecca-Blythe road RSA491633 RSA Pleuraphis rigida Steve Boyd 1742 1988-4-08 San Bernardino West side of Ord Mountain. North of Lucerne Valley. 15 miles south of I-40 on Camp Rock Road near Tyler Valley. RSA507492 RSA Pleuraphis rigida J. C. Aulenbrock 33 1985-4-10 San Bernardino B.L.M. Wilderness Study Area #328, ca.35 miles E of Twentynine Palms, E of Clark's Pass at north end of Coxcomb Mountains.Near 115 ° 2 W, 34 ° 0 N RSA515196 RSA Pleuraphis rigida Steve Boyd 1464 1986-3-13 Riverside West side Palen Mts.: NE of Desert Center. RSA518177 RSA Pleuraphis rigida Steve Boyd 5151 1990-10-03 San Bernardino Providence Mountains., Road over Foshay Pass, W side of range, 11.2 mi E of Kelbaker Rd. RSA518328 RSA Pleuraphis rigida H. Green s.n. 1978-4-12 San Bernardino Cadiz Valley, E Mojave Desert; Just N of Riverside County line, near jct. of Hwy 62 with Hwy 177 RSA518526 RSA Pleuraphis rigida H. Green s.n. 1978-4-26 San Bernardino Ward Valley; W of Needles. RSA525289 RSA Pleuraphis rigida Walter Wisura 4494 1991-4-28 San Bernardino 27.3 mi E of 29 Palm along the Hwy 62. RSA526372 RSA Pleuraphis rigida Marcus E. Jones s.n. 1926-2-15 Riverside Near Indio. RSA527866 RSA Pleuraphis rigida B. Pitzer 1746 1991-6-04 San Diego De Luz Canon: Along De Luz-Murrieta Road and De Luz Creek. RSA554037 RSA Pleuraphis rigida B. Pitzer 1818 1991-7-28 San Diego De Luz Canon: Along De Luz-Murrieta Road and De Luz Creek. RSA554231 RSA Pleuraphis rigida J. Wear 91-74 1991-5-22 San Bernardino Landers (future landfill site), ca. 15 kilometers (air) N of Yucca Valley.; Yucca Valley North[two locations:] (Yucca Valley North USGS Quad: T2N R6E SE/4 sec.2 NE/4 sec.29/ Joshua Tree North USGS Quad: T2N R6 W/4 sec.21 & NW/4 sec. 28). RSA554343 RSA Pleuraphis rigida B. Pitzer 1843 1991-10-02 San Diego De Luz Canon: Along De Luz-Murrieta Road and De Luz Creek. RSA562055 RSA Pleuraphis rigida Steve Boyd s.n. 1992-4-19 Riverside N end of the Granite Mtns on sandy bajada along powerline road near jtn of Hwy 177 and Hwy 62. Area of transition between Mojave and Colorado Deserts. RSA575737 RSA Pleuraphis rigida S. J. Darbyshire 4635 1994-9-17 Riverside Chuckwalla Valley 30 mile E [of] Desert Center, Highway 10 rest area. RSA577756 RSA Pleuraphis rigida F. M. Reed 4286 1920-3-24 Riverside Morongo Pass near Whitewash station RSA600180 RSA Pleuraphis rigida L. C. Wheeler 7652 1959-12-29 Imperial Barren Mountains. Deyan Mine. RSA623839 RSA Pleuraphis rigida Arthur R. Kruckeberg 4612 1940-5-25 San Bernardino Eastern Mohave desert near Baker RSA626509 RSA Pleuraphis rigida Scott D. White 6906 1998-7-21 San Bernardino Mitsubishi Cement proposed quarry expansion directly west of existing Cushenbury Quarry and S of processing plant; Big Bear City RSA643571 RSA Pleuraphis rigida Scott D. White 2840 1995-4-12 San Bernardino Just north of State Rt. 62, at intersection w. Ironage Rd.; Cadiz Valley RSA651756 RSA Pleuraphis rigida N. J. Chatterton s.n. 1966-4-26 San Bernardino B.L.M. enclosure in Section 15 northeast of Colton Well. RSA651789 RSA Pleuraphis rigida Marion P. Harthill 1640 1973-3-01 San Bernardino Zzyyx [Zzyzx] RSA663857 RSA Pleuraphis rigida C. R. Annable 2294 1995-3-16 Riverside Ca. 13 NE of Desert center on Hwy 177.47 ° 47'N, 115 ° 1 W. RSA670356 RSA Pleuraphis rigida Bonnie C. Templeton 1009 1930-4-09 Riverside North of Palm Springs. Colorado Desert. RSA675982 RSA Pleuraphis rigida Scott D. White 8344 2001-4-17 Riverside SONORAN DESERT: Shaver's Valley. North of the I-10 Freeway, ca. 16 miles east of Indio jtn. I-10 / SR 111. Bajada, washes, and mtn. foothills near powerline access roads at unnamed freewayexit accessing pump station.; Cottonwood Basin RSA676044 RSA Pleuraphis rigida Scott D. White 8344 2001-4-17 Riverside SONORAN DESERT: Shaver's Valley. North of the I-10 Freeway, ca. 16 miles east of Indio jtn. I-10 / SR 111. Bajada, washes, and mtn. foothills near powerline access roads at unnamed freewayexit accessing pump station.; Cottonwood Basin RSA676134 RSA Pleuraphis rigida J. M. Porter s.n. 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness; Algodones Dunes RSA676320 RSA Pleuraphis rigida J. M. Porter s.n. 2003-3-17 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area.; Algodones DunesN32 ° 55'18.9 W 115 ° 5' 26.3'. RSA678074 RSA Pleuraphis rigida Sarah J. De Groot 810 2002-11-29 San Diego Anza-Borrego Desert State Park. RSA678444 RSA Pleuraphis rigida Steve Boyd 10492-A 2003-4-17 Riverside East side of mouth of Chino Canon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. RSA681930 RSA Pleuraphis rigida LeRoy Gross 1169 2003-10-21 San Bernardino Mojave Desert; North Central Mojave Desert region. Cat Mountain; In the Cronise Mountains, just north of the Interstate 15 freeway, west of Baker.Exit at Basin Road. RSA682681 RSA Pleuraphis rigida Scott D. White 9171 2003-5-3 Imperial Sonoran Desert: Fish Creek Mountains. Unnamed canyon draining SW facing slope of the mtns; south of the operating US Gypsum quarries.; Borrego Mtn SE & Carrizo Mtn NE RSA690982 RSA Pleuraphis rigida Scott D. White 9306-A 2003-5-14 Riverside BLMBajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (='Superior') Gypsum Mine.; Inca RSA69361 RSA Pleuraphis rigida Verne Grant 15980 1951-4-07 Riverside Colorado Desert, Morongo Valley road [Hwy 62] ca. 1 miles North of Highway 60 RSA697726 RSA Pleuraphis rigida J. Russell Bruff s.n. 2012-9-27 Riverside Palm Springs. RSA697727 RSA Pleuraphis rigida Wilma Griset s.n. 1931-3-29 Riverside Colorado Desert, Indio. RSA697728 RSA Pleuraphis rigida J. Russell Bruff 153 1928-4-01 San Bernardino 29 Palms. RSA697729 RSA Pleuraphis rigida J. Russell Bruff 91 1928-4-01 Riverside Mesa above Whitewater. RSA700267 RSA Pleuraphis rigida LeRoy Gross 1226 2004-5-13 Imperial Chocolate Moutains (Chocolate Moutain Aerial Gunnery Range). Near Surveyors Pass, surrounding desert off of Beal Road.; Lion Head Moutain RSA701292 RSA Pleuraphis rigida Steve Boyd 11607 2004-10-13 San Bernardino BLMIvanpah Valley: upper bajada at NE base of the Ivanpah Mtns, south of Interstate 15 RSA702357 RSA Pleuraphis rigida Steve Boyd 10683 2004-3-30 San Bernardino BLMSouthern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) about hill topped with communication towers. RSA704245 RSA Pleuraphis rigida Gary D. Wallace 1994 1982-5-15 Riverside Palms to Pines Highway, 7 level hill. RSA704367 RSA Pleuraphis rigida Sarah J. De Groot 1155 2003-3-1 San Bernardino BLMColorado Desert: Northeastern Colorado Desert Region: Whipple Mountains: Dune OHV area near Echo Lodge, along Parker Dam road. RSA704368 RSA Pleuraphis rigida Sarah J. De Groot 1502 2003-3-18 San Bernardino BLMWHIPPLE MOUNTAINS: Along old Needles-Parker road between highway 62 and Colorado River aqueduct. RSA704369 RSA Pleuraphis rigida Sarah J. De Groot 1128 2003-3-1 San Bernardino BLMWhipple Mountains: Across Parker Dam Road from Bass Point. RSA704370 RSA Pleuraphis rigida Sarah J. De Groot 1797 2003-3-19 San Bernardino BLMWhipple Mountains: Wash near intersection of Highway 95 and East Mojave Heritage Trail, west of Pyramid Butte. RSA704510 RSA Pleuraphis rigida Sarah J. De Groot 1869 2003-3-19 San Bernardino BLMWhipple Mountains: West side, along East Mojave Heritage Trail, east of Pyramid Butte. RSA704624 RSA Pleuraphis rigida Sarah J. De Groot 2458 2003-4-20 San Bernardino BLMWHIPPLE MOUNTAINS: Old road heading west from Copper Basin, off Bowman's wash road. RSA705416 RSA Pleuraphis rigida J. Barth 154 2005-1-29 San Diego Anza-Borrego Desert State Park. On mesa above west bank of San Felipe Wash in southeast part of square. RSA705857 RSA Pleuraphis rigida LeRoy Gross 1654 2005-3-17 San Bernardino Mojave Desert; Southcentral Mojave Desert region: Marble Mountains; Just east of Kelbaker Road, short distance south from Highway 40. RSA706260 RSA Pleuraphis rigida LeRoy Gross 1859 2005-4-12 San Bernardino Mojave Desert; Southcentral Mojave Desert region: Marble Mountains; north of gas line road (mile 69), south of Highway 40, east of Kelbaker Road.; Browns ButteGeneral collecting from low hills north up near rocky cliff, then west northeast into a canyon bottom that I followed into the mountains a short distance. RSA706372 RSA Pleuraphis rigida Sarah J. De Groot 2691 2003-5-3 San Bernardino WHIPPLE MOUNTAINS: S/SE side along aqueduct road, SW of Bowman's wash. RSA706479 RSA Pleuraphis rigida Sarah J. De Groot 3410 2003-10-26 San Bernardino WHIPPLE MOUNTAINS: West of Copper Basin, bluff at end of road into BLM Wilderness area from Bowman's Wash, upper Whipple Wash. RSA707019 RSA Pleuraphis rigida Sarah J. De Groot 3212 2003-9-28 San Bernardino WHIPPLE MOUNTAINS: Near west end of Copper Basin, upper Bowman's wash. Along old road into BLM Wilderness area. RSA707046 RSA Pleuraphis rigida Sarah J. De Groot 3684 2004-3-16 San Bernardino WHIPPLE MOUNTAINS: BLM Wilderness, south of highest peak along wash north of road into south side of range, north of aqueduct. RSA707364 RSA Pleuraphis rigida Sarah J. De Groot 4030 2004-3-30 San Bernardino BLMWHIPPLE MOUNTAINS: Road along north side of range, past War Eagle mine; between powerline and mine. RSA707372 RSA Pleuraphis rigida Sarah J. De Groot 2984 2003-5-21 San Bernardino BLMWHIPPLE MOUNTAINS: West side of range, along old Needles-Parker road. Dark volcanic bluff east of road and coarse sandy wash. RSA707640 RSA Pleuraphis rigida Sarah J. De Groot 4103 2004-4-11 San Bernardino WHIPPLE MOUNTAINS: West of Copper Basin, off road into BLM Wilderness area from upper Bowman's Wash. Tributary of Whipple Wash, just downstream from 'window,' at intersection of 2 washes. RSA707675 RSA Pleuraphis rigida Sarah J. De Groot 4195 2004-4-26 San Bernardino WHIPPLE MOUNTAINS: BLM Wilderness area, along summit ridge between D&W mine and highest peak. RSA709273 RSA Pleuraphis rigida Sarah J. De Groot 2966 2003-5-21 San Bernardino BLMWHIPPLE MOUNTAINS: North side of range, along road past War Eagle mine. RSA710505 RSA Pleuraphis rigida J. Barth 205 2005-2-1 San Diego Anza-Borrego Desert State Park near southern base of Santa Rosa Mts; 0.1 mile northwest of where Palo Verde Wash Rd. meets Hwy 22. RSA711751 RSA Pleuraphis rigida Sarah J. De Groot 3317 2003-10-10 San Bernardino BLMWhipple Mountains: Chute below summit of Cupcake Butte, north of Whipple Wash. RSA712199 RSA Pleuraphis rigida Sarah J. De Groot 4521 2004-10-16 San Bernardino BLMWHIPPLE MOUNTAINS: North fork of Whipple Wash, a few miles E of summit. RSA712384 RSA Pleuraphis rigida Sarah J. De Groot 4466 2004-10-16 San Bernardino BLMWHIPPLE MOUNTAINS: Ridge S of middle fork of Whipple Wash, NE of large dark bluff. RSA713199 RSA Pleuraphis rigida Sarah J. De Groot 3259 2003-10-9 San Bernardino WHIPPLE MOUNTAINS: Wash beside Atchison, Topeka, and Santa Fe Railroad tracks, just E of Vidal and Highway 95. RSA713472 RSA Pleuraphis rigida Sarah J. De Groot 3799 2004-3-18 San Bernardino BLMWHIPPLE MOUNTAINS: Summit of Cupcake Butte, NW of Whipple Wash. RSA713637 RSA Pleuraphis rigida Sarah J. De Groot 3222 2003-9-28 San Bernardino BLMWHIPPLE MOUNTAINS: Along Highway 95 between Vidal Junction and Vidal. RSA714363 RSA Pleuraphis rigida Sarah J. De Groot 4751 2005-2-28 San Bernardino BLMWard Valley. Stabilized sand dune area a few miles west of Rice, along MWD dirt road heading S from Hwy 62. RSA714845 RSA Pleuraphis rigida Sarah J. De Groot 4444 2004-10-5 San Bernardino BLMWHIPPLE MOUNTAINS: SE of Savahia Peak, near Dollar Bill Mine. RSA714956 RSA Pleuraphis rigida Sarah J. De Groot 4626 2005-2-10 Riverside BLMAlong Palen Pass Road, near Packard Well, S end of Granite Mountains. RSA718770 RSA Pleuraphis rigida Michael Honer 1931 2004-4-4 Riverside Metropolitan Water District of Southern CaliforniaSW base of Cottonwood Mtns., near MWD aqueduct, appx. .75 N of I-10. E edge of Pinkham Wash. RSA719221 RSA Pleuraphis rigida Sarah J. De Groot 2916 2003-5-20 San Bernardino BLMWHIPPLE MOUNTAINS: Hills between War Eagle Mine and summit ridge. Near RSA719801 RSA Pleuraphis rigida Sarah J. De Groot 2882 2003-5-19 San Bernardino BLMWhipple Mountains: Copper Basin Dunes OHV area near Echo Lodge, along Parker Dam road. RSA720732 RSA Pleuraphis rigida J. M. Porter 12487 2001-4-20 San Bernardino BLMWhipple Mountains: Just W of Colorado River, Copper Basin Dunes OHV area. RSA725148 RSA Pleuraphis rigida Steve Boyd 11794 2007-10-29 San Bernardino BLMBrown Buttes area at northwestern end of Marble Mountains, on road to microwave towers east of Kelbaker Road, just south of Interstate 40 RSA734386 RSA Pleuraphis rigida D. M. McF s.n. 1954-5-26 San Bernardino North end of Lucerne Valley; Mojave Desert. RSA735496 RSA Pleuraphis rigida LeRoy Gross 3144 2008-4-1 San Bernardino BLMNorthwest end of the Sheep Hole Mountains; Along east side of Amboy Road, around Sheep Hole Pass. Parked at a tramission tower just off the road.General collecting along bajada to west side of mountains, up ridge to 34.23 N, 115.70 W. Then down south side of this ridge to dry canyon bottom at 34.23458N, 115.70953W. Then follow this canyon bottom back out of the mountains. This collection nearer to RSA736273 RSA Pleuraphis rigida Jim Andre 8762 1980-9-17 San Bernardino Clark Mountain Range: along Yates Well Rd, pprox 1.5 W of Colosseum Mine Rd, N. side of Clark Mtn. RSA745373 RSA Pleuraphis rigida Duncan S. Bell 364 2009-6-12 San Bernardino Clark Mountains: in the vicinity of the Umberci Mine area. RSA747835 RSA Pleuraphis rigida Scott D. White 12598 2009-4-28 Riverside San Bernardino National ForestCity of Desert Hot Springs, Proposed development N of Pierson Blvd and E of Verbena Dr.; Seven Palms Valley RSA750515 RSA Pleuraphis rigida LeRoy Gross 3753 2009-4-6 San Bernardino BLMSouthwest section of the Cady Mounatins: Areas North and east of Black Butte Mine, northwest of the Sleeping beauty section. Southeast of the transmission line road.; Sleeping Beauty 7.5 Quad.Started near 34.81 N 116.34 W traveled SE to small saddle that had little amount of sand blowed on the slope to the east of this, near 34.80312N 116.33066W. Then west to Black Butte Mine, and follow a drainage NNE from the mine site. RSA756194 RSA Pleuraphis rigida Michael Honer 2494 2007-4-5 San Bernardino BLMBajada SW of Cady Mountains: Appx 1.2 N of Hwy 40; 2.6 W of Hector Rd. Near old talc mine. RSA756427 RSA Pleuraphis rigida Michael Honer 3131 2008-5-28 San Bernardino BLMAlong winding 4WD road traversing broad bajada N of Hondo Wash. Appx. 3.6 W of Highway 247 in Flamingo Heights / Landers area, 1 NW of Black Lava Butte. RSA757439 RSA Pleuraphis rigida Michael Honer 3015 2008-4-12 San Bernardino BLMHondo Wash: 2.2 W of intersection of Hondo St. and Highway 247 in Flamingo Heights - Landers area. RSA757727 RSA Pleuraphis rigida LeRoy Gross 4356 2010-4-12 Riverside Whitewater Canon Bioblitz: From camp near 34.02 N, 116.68 W, east of the Paw, near the mouth of Canon.; Catclaw Flat 7.5 Quad.Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W. Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Canon. RSA757875 RSA Pleuraphis rigida Michael Honer 3203 2008-9-5 San Bernardino BLMIvanpah Valley: along pipeline service road about 0.5 mi. E of Interstate 15; 2.6 N of Nipton Road. RSA758404 RSA Pleuraphis rigida Michael Honer 2865 2008-3-19 San Bernardino BLMDark volcanic hills along SW arm of Cady Mountains. Appx. 4.7 N of Interstate 40, 3 W of Hector Rd. RSA760039 RSA Pleuraphis rigida Gregory Pongetti 41768 2005-4-3 San Bernardino BLM land, north 4 miles on Sunfair Road from Highway 62, 3.5 miles east of Sunfair Road on nameless dirt road running parallel to hills, telephone pole, and tamarixk tree at intersection of Sunfair and dirt road. RSA761076 RSA Pleuraphis rigida Thomas Stoughton 123 2010-4-7 Imperial BLMSW of Plaster City. N of Hwy 8. EC 350. Main wash approx. 1/2 mile W of Dunaway Rd.; Plaster City RSA761079 RSA Pleuraphis rigida Thomas Stoughton 159 2010-4-22 Riverside BLMChuckwalla Valley. N of I-1 Wiley Well Rd exit on 4x4 rd towards McCoy Peak.; Hopkins Well RSA765983 RSA Pleuraphis rigida Jim Andre 13738 2010-4-23 San Bernardino Granite Mountains; Mojave National Preserve; along powerline road approx 6 mi. southwest of Kelso Dunes at Budweiser Wash.; 7.5 Budweiser Wash RSA767073 RSA Pleuraphis rigida Jim Andre 12536 2010-3-1 San Diego Borrego Desert; along Hwy S-2 6.5 N. of Ocotillo in wash on west side of road.; Sweeney Pass RSA767221 RSA Pleuraphis rigida Tasha La Doux 491 2010-3-11 San Bernardino Turtle Mts.; along Turtle Mtn. Road heading toward Homer (also called Colton) Wash, northwest end range, west of Mohawk Spring; West of Mohawk Spring 7.5 RSA768017 RSA Pleuraphis rigida Jim Andre 13252 2010-3-26 San Bernardino Piute Range; Mojave National Preserve; along Old Gov't Road (Mojave Road) approx. 9 mi. west of U.S. Hwy 95, on eastern flanks of range.; 7.5 Homer MountainNAD 83 RSA772267 RSA Pleuraphis rigida Sarah J. De Groot 6339 2010-4-24 San Bernardino BLMWhipple Mountains: Along drainage below cove, NE of highest peak along summit ridge. RSA774027 RSA Pleuraphis rigida Laney Widener 11 2011-5-19 San Bernardino BLMBristol Mountains located to the North side of NN0013 at the top of the first hills; East of Broadwell Lake 7.5' USGS RSA774028 RSA Pleuraphis rigida Laney Widener 9 2011-5-10 San Bernardino BLMSheephole Pass off of Amboy Road- South of Amboy CA and on the west side of Sheephole Mountains; Bristol Lake SW 7.5' USGS RSA774661 RSA Pleuraphis rigida Duncan S. Bell 2503 2011-5-20 San Bernardino BLMFlat Top; north of Pioneertown and east of Rimrock. RSA774947 RSA Pleuraphis rigida Duncan S. Bell 2437 2011-5-14 San Bernardino The Silurian Hills; predominant peak/ridgeline northeast of Owl Canon. RSA774963 RSA Pleuraphis rigida Duncan S. Bell 2277 2011-4-20 San Bernardino Bristol Mountains; western section of this mountain range; approximately 6 air miles northeast of Ludlow, south side of Powerline Road. RSA774968 RSA Pleuraphis rigida Duncan S. Bell 2289 2011-4-21 San Bernardino Along Kane Wash between the Newberry Mountains and the Rodman Mountains; in the vicinity of Kane Springs. RSA775120 RSA Pleuraphis rigida Orlando Mistretta 5026 2010-4-13 Riverside Whitewater Canon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm).Between N34.004 W116.67238 N33.99629 and W116.66015 RSA775432 RSA Pleuraphis rigida Duncan S. Bell 2214 2011-4-8 San Bernardino Iron Mountains; south section of the mountain range, entering from the southwestern side, approximately 4.5 air miles northwest of Granite Pass. RSA775667 RSA Pleuraphis rigida Thomas Stoughton 803 2011-3-23 Riverside BLMChuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.'; Desert Center Quad. RSA775671 RSA Pleuraphis rigida Jim Andre 14744 2010-5-19 San Bernardino Ivanpah Mountains; Mojave National Preserve; south end of Ivanpah Valley approx. 3 mi. south of Nipton Road and 5 mi. SW of Nipton.; Nipton RSA775945 RSA Pleuraphis rigida Thomas Stoughton 955 2011-3-31 Riverside BLMDune system along Midland Rice Road, South of Arica Mountains.; Styx RSA776203 RSA Pleuraphis rigida Amber Swanson 320 2011-4-1 San Bernardino BLMSand dunes near Cronese Dry Lake. RSA776383 RSA Pleuraphis rigida Amber Swanson 372 2011-4-8 Riverside BLMGranite Mtns area E of Hwy 177 near jct 62. RSA776874 RSA Pleuraphis rigida Thomas Stoughton 1162 2011-5-4 San Bernardino BLMTransition between San Bernardino Mountains and Little San Bernardino Mountains, Big Horn Sheep Wilderness, New Dixie Mine Road, just west of Hwy 247; Landers 7.5' USGS RSA776908 RSA Pleuraphis rigida Thomas Stoughton 960 2011-4-5 Riverside BLMBlythe-Rice Road, East/Northeast of Arica Mountains on Blythe-Rice Road, about 1 mile south of railroad crossing; Arica Mountains 7.5' USGS RSA777466 RSA Pleuraphis rigida Jim Andre 14910 2010-9-18 San Bernardino Ivanpah Valley; Mojave National Preserve; along transmission line road 1.7 miles NE of RR tracks, approx. 2 miles ESE of NIpton, in southeastern Ivanpah Valley; Crescent Peak 7.5 RSA777862 RSA Pleuraphis rigida Amber Swanson 404 2011-4-9 San Bernardino BLM1.2 air mi N of Jct of Hwy 62 and Aqueduct Rd RSA778415 RSA Pleuraphis rigida Stephanie Rockwood 52 2011-10-4 Riverside BLMRed Cloud Wash Road exit from I10. Fellow Red Cloud Road approximately 6.4 miles. Near campground with car remnants. Chuckwalla Bench ACEC.; Red Cloud Canon RSA778422 RSA Pleuraphis rigida Stephanie Rockwood 94 2011-10-12 Riverside BLMRice Valley. Highway 62 to to Blythe Rice Road. About 1 mile from highway.; Rice RSA778493 RSA Pleuraphis rigida Duncan S. Bell 60 2009-3-8 Riverside Arica Mountains: the north tip of the mountain range approximately 3 air miles northwest of Priest Well, or approximately 5.5 air miles southwest of the ghost town of Rice. RSA778524 RSA Pleuraphis rigida Amber Swanson 634 2011-10-8 Riverside BLMJct of Blythe Rice Rd and Hwy 62. RSA778669 RSA Pleuraphis rigida Stephanie Rockwood 78 2011-10-11 San Bernardino BLMHighway 62 Ironage Road Pulloff. Around Dale Lake Sand Dunes Area, Sheep Hole Mountains Wilderness.; New Dale RSA779482 RSA Pleuraphis rigida Sarah J. De Groot 6718 2011-5-6 San Bernardino BLMSHEEP HOLE MOUNTAINS, SW Mojave Desert: East side of saddle east of Sheep Hole Pass, ridge along wash running ~N40 E, south of saddle. NE side of main ridge of the mountains RSA779620 RSA Pleuraphis rigida Duncan S. Bell 658 2010-4-1 Riverside Arica Mountains: east side of the mountain range, west side of Rice Valley, near the lowest eastern drainage point for the Arica mountains; approximately 4.3 air miles southeast of the ghost town of Rice.; Rice RSA779690 RSA Pleuraphis rigida Duncan S. Bell 701 2010-4-2 Riverside Arica Mountains: along jagged ridgeline of mountain range; in the Palen/McCoy wilderness.; Arica Mountains QuadrangleCollecting on a sand ramp located just below the ridgeline on the eastern side that was trapped between the ridgeline and the steep narrow rocky canyons below it. RSA779810 RSA Pleuraphis rigida Duncan S. Bell 99 2009-3-9 Riverside Arica Mountains: southeast section of the mountain range approximately 1.2 air miles from Priest Well or approximately 6.5 air miles southwest of the ghost town of Rice. RSA779843 RSA Pleuraphis rigida Jim Andre 15747 2010-5-30 San Bernardino Mid Hills; Above Chicken Water Spring, approx. 4 miles south of Cima Road, 4 miles west of Cedar Canon Road; Columbia Mountain 7.5 RSA780227 RSA Pleuraphis rigida Stephanie Rockwood 104 2011-10-12 Riverside BLMEast side of the West Riverside Mountains. Highway 62 NS857 (Radio Tower Road) to NS 853 to 7 Wash Road. Vidal Valley.; Grommet RSA780232 RSA Pleuraphis rigida Stephanie Rockwood 111 2011-10-12 Riverside BLMRice Valley Dunes, Rice Valley Wilderness. Highway 62 toRice Valley Dunes Road to Midland Vidal Road (Power Line Access Road). South/South east side of dunes.; Needles NW RSA780237 RSA Pleuraphis rigida Stephanie Rockwood 94 2011-10-12 Riverside BLMRice Valley. Highway 62 to to Blythe Rice Road. About 1 mile from highway.; Rice RSA780575 RSA Pleuraphis rigida Stephanie Rockwood 168 2011-10-25 San Bernardino BLMHondo Street. Off highway 247. Follow road about 1.5 miles to sandy wash.; Yucca Valley North RSA781986 RSA Pleuraphis rigida Stephanie Rockwood 152 2011-10-20 San Bernardino BLMHighway 40, Mountain Springs exit, roadside, about 5 miles from Goff.; Fenner Spring RSA782134 RSA Pleuraphis rigida Stephanie Rockwood 129 2011-10-18 Riverside BLMFord Dry Lake Area, Pallen Dunes Road. I10 exit 217. Chuckwalla Valley.; Hopkins Well RSA782136 RSA Pleuraphis rigida Stephanie Rockwood 142 2011-10-19 San Bernardino BLMJust before Chemehuevi wash on East Mojave Heritage Trail Road off Highway 95. Chemehuevi Valley parallel with Step Ladder Wilderness.; Snaggletooth RSA782138 RSA Pleuraphis rigida Stephanie Rockwood 138 2011-10-19 San Bernardino BLMVidal Wash. Highway 95 NS859 at railroad junction in Vidal.; Vidal RSA784388 RSA Pleuraphis rigida Jim Andre 15879 2011-2-21 San Diego Borrego Desert; along Hwy. S-22, 15.3 miles E of Borrego Springs at base of Smoke Tree Canon.; Fonts Point 7.5 RSA784418 RSA Pleuraphis rigida Jim Andre 13192 2010-4-30 San Bernardino Providence Mtns: Mojave National Preserve. East side of range at end of dirt road to Warm Spring, approx 3 mi S of Foshay Pass.; West of Blind Hills 7.5 RSA784643 RSA Pleuraphis rigida Jim Andre 19422 2011-11-16 San Bernardino Colorado River Valley: along Needles Hwy east of Dead Mtns, 6.3 mi north of I-40 Needles.; Needles 7.5 RSA785696 RSA Pleuraphis rigida Doris Bowers 1719G 1971-5-31 San Bernardino Wild Horse Canon, Providence Mts. RSA787592 RSA Pleuraphis rigida Thomas Stoughton 166 2010-4-22 Riverside BLMMcCoy Wash. N of I-10. Rd going N from Black Rock Rd. S side of private land boundary.; McCoy Peak RSA788425 RSA Pleuraphis rigida Jim Andre 15543 2010-6-2 San Bernardino New York Mountains; Mojave National Preserve; along dirt road to Mail Spring, 0.2 mile SW of spring area; Ivanpah 7.5 RSA789594 RSA Pleuraphis rigida R. F. Thorne 48698 1976-10-30 San Bernardino Granite Mountains, eastern Mojave Desert: Southern margin of Kelso Dunes, low sand dunes south of main, high dunes RSA790033 RSA Pleuraphis rigida David Fraker 22 2012-3-22 San Bernardino BLMPalen Mtns. - Travel north on Highway 177 to Coxcomb Mountain Rd. Head east on Coxcomb Mountain Rd. approx. 8 mi. RSA792254 RSA Pleuraphis rigida D. M. McF 16 1954-5-26 San Bernardino North end of Lucerne Valley; Mojave Desert. RSA793067 RSA Pleuraphis rigida Naomi Fraga 3916 2011-11-3 San Bernardino BLMSouth facing slopes on the north side of Black Lava Butte. South of Hondo Road.; Yucca valley North RSA793955 RSA Pleuraphis rigida Naomi Fraga 4136 2012-9-13 San Bernardino BLMAt the mouth of Rattlesnake Canon. Bighorn Mountain Wilderness.; Rattlesnake Canon 7.5' quad RSA795022 RSA Pleuraphis rigida Sandra M. Namoff 36 2011-3-27 San Bernardino BLMBureau of Land Management, White Water Canon, west side of Canon Rd. Drive, near Painted Hill. RSA795232 RSA Pleuraphis rigida Justin M. Wood 2771 2010-10-1 Riverside Sonoran Desert: Chuckwalla Valley northwest of Victory Pass on east side of Kaiser Road +/-1 mile north of Desert Center Landfill at proposed Eagle Mountain Solar Site. RSA796019 RSA Pleuraphis rigida Duncan S. Bell 233 2009-4-18 Riverside Arica Mountains; northeast of range, approximately 1 air mile south of the ghost town of Rice.; Rice RSA796493 RSA Pleuraphis rigida Jim Andre 23591 2012-8-23 San Bernardino Mojave National Preserve: Cima Dome. Along Cima Rd approx. 4 N of Cima Dome summit.; 7.5 Cima RSA796506 RSA Pleuraphis rigida Jim Andre 21365 2012-3-19 Riverside Palen Valley; along Palen Pass Road (dirt), 1.2 miles east of Highway 177.; Palen Mountains 7.5 RSA796895 RSA Pleuraphis rigida Jim Andre 23472 2012-8-30 San Bernardino Piute Range; Mojave National Preserve; far south end of Piute Range, 0.8 miles west of powerline (Walter Road), approximately 5 miles south of Government Road, 8 miles north of Highway 66, 7 miles west of Highway 95.; Homer Mountain 7.5 RSA797774 RSA Pleuraphis rigida Jim Andre 23131 2012-9-18 San Bernardino Kingston Range: along Excelsior Mine Rd, approx. 18 N of Interstate 15, at SE end of range.; 7.5 East of Kingston Peak RSA798127 RSA Pleuraphis rigida Jim Andre 22340 2011-8-18 San Bernardino Mojave National Preserve; along dirt road/transmission line 1.0 miles west of Ivanpah Road, 3.4 miles south of Morningstar Road, approximately 10 miles south of I-15, just north of New York Mountains.; Joshua 7.5 RSA798644 RSA Pleuraphis rigida Margaret R. Mulligan 2510 2008-4-25 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, northwest of Salton City, section 14 (SL14), in Coral Wash ca. 2 miles southwest of Highway 86. RSA799286 RSA Pleuraphis rigida Thomas Stoughton 661 2010-9-29 San Bernardino BLMBighorn Mountain Wilderness. New Dixie Mine Road near Ruby Mountain off highway 247; Landers RSA800643 RSA Pleuraphis rigida Jim Andre 22917 2012-9-5 San Bernardino Mid Hills. Along Cedar Canon Rd, 1.7 NE of Jct with Cima Rd.; 7.5 Mid Hills RSA801022 RSA Pleuraphis rigida Jim Andre 22374 2012-8-8 San Bernardino Granite Mountains: UC Granite Mtns Desert Research Center, lower Granite Cove, just east of staff residence.; 7.5 Bighorn Basin RSA802155 RSA Pleuraphis rigida Duncan S. Bell 4648 2013-3-24 Imperial BLMThe 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.; In-Ko-Pah Gorge RSA8421 RSA Pleuraphis rigida Roxana S. Ferris 8202 1932-4-29 San Bernardino Base of North Butte, Mopas Mountains RSA91977 RSA Pleuraphis rigida F. W. Peirson 54544 1924-5-14 San Bernardino Box S Springs in Cushenberry [Cushenbury] Springs Region, north base of San Bernardino Mountains. RSA91979 RSA Pleuraphis rigida F. W. Peirson 2369 1921-3-22 Riverside Murray Canon, near Palm Springs RSA91980 RSA Pleuraphis rigida F. W. Peirson 9775 1932-3-21 Imperial Sand Hills near their east edge, west of Yuma SBBG100518 SBBG Pleuraphis rigida W. L. Halvorson 77-108 1977-3-11 San Bernardino south of Dale Lake, along St Hwy 62, E of Twentynine Palms SBBG119123 SBBG Pleuraphis rigida Steve Boyd w/ T. Morgan 11446 2004-6-1 San Bernardino large cyn S of Pachalka Spring, W flank of the Clark Mtns SBBG119845 SBBG Pleuraphis rigida Carol Bornstein 1991-12-11 San Diego mouth of Coyote Cyn, ca. 0.25 mi E of Desert Gardens, Anza Borrego State Park SBBG141352 SBBG Pleuraphis rigida R. C. Benkendorf 762 2017-6-10 San Bernardino [ca. 1.4 NNE of Tip Top Mtn; San Bernardino Mtns] SBBG14312 SBBG Pleuraphis rigida H. and M. Dearing 1936-12-25 Riverside Thousand Palms SBBG14817 SBBG Pleuraphis rigida E. R. Blakley 5481 1962-11-25 Riverside 5 W of Blythe on US Hwy 60 and 70 SBBG212680 SBBG Pleuraphis rigida Jim M. Andre 37177 2017-3-4 Riverside Along west side of US hwy 95, 21.4 mi. south of Vidal junction, just north of Big Maria mountains. SBBG214120 SBBG Pleuraphis rigida Jim M. Andre 38070 2017-3-10 Riverside Coxcomb Mountains. North of Hwy 177 at JTNP boundary, 10.1 NE of Desert Center (i-10).; East of Victory Pass SBBG29418 SBBG Pleuraphis rigida Donald Myrick 1807 1968-3-04 Riverside Palms to Pines Hwy out of Palm Desert SBBG35124 SBBG Pleuraphis rigida T. L. Secrest 1948-4-07 Riverside ca. 7 mi below Whitewater SBBG38597 SBBG Pleuraphis rigida Ernest C. Twisselmann 15623 1969-6-04 San Bernardino Water Valley, NE of Harper Dry Lake SBBG47083 SBBG Pleuraphis rigida Katherine K. Muller 3091 1972-5-03 San Bernardino 1 W of Cima SBBG57095 SBBG Pleuraphis rigida M. N. Ackley 1 1926-2-1 Riverside near Edom SBBG57096 SBBG Pleuraphis rigida Ralph Hoffmann 1930-4-26 San Bernardino Garlic Spring SBBG57097 SBBG Pleuraphis rigida C. F. Smith 6521 1961-9-26 San Diego Little Blair Valley SBBG57098 SBBG Pleuraphis rigida Ralph Hoffmann 1929-9-12 San Diego San Felipe Valley SBBG584 SBBG Pleuraphis rigida Reid Moran 6517 1958-3-05 Imperial Pinto Wash SBBG585 SBBG Pleuraphis rigida H. and M. Dearing 4868 1942-4-06 Riverside 10 W of Blythe UC1036114 UCJEPS Pleuraphis rigida Annetta Carter, Francia Chisaki 3235 1953-4-05 San Bernardino 20 mi s Needles UC1037346 UCJEPS Pleuraphis rigida E. Goithwaite 1934-11-01 San Bernardino Mohave Desert UC1105290 UCJEPS Pleuraphis rigida Reino Alava 1960 1958-4-05 San Bernardino between Highways 95 and 66 about three mi s Needles; s of Needles UC1146065 UCJEPS Pleuraphis rigida C. L. Hitchcock, C. V. Muhlick 23160 1964-3-19 Imperial on road to Fish Creek 3 mi s Ocotillo Well; s of Ocotillo Well on road to Fish Creek UC120609 UCJEPS Pleuraphis rigida unknown 1896-3-25 San Diego Borregos Springs; Col. Desert, < Colorado Desert > Borregos Springs UC120613 UCJEPS Pleuraphis rigida T. S. Brandegee 89 1894-4-27 San Diego San Felipe; Colorado Desert, San Felipe UC132228 UCJEPS Pleuraphis rigida H. M. Hall, H. P. Chandler 6844 1906-5-04 San Bernardino 12 W of Barstow (Blacks Ranch) UC1434006 UCJEPS Pleuraphis rigida J. L. Strother 1260 1976-10-21 San Bernardino 0.3 mi s Route 247 (Barstow to Lucerne Valley) on unpaved road to Stoddard Well (ca 5 mi w of Barstow) UC144149 UCJEPS Pleuraphis rigida H. M. Hall, H. P. Chandler 6844 1906-5-04 San Bernardino 12 mi w Barstow (Black's Ranch); Mohave Desert UC153188 UCJEPS Pleuraphis rigida T. S. Brandegee 1905-4-01 San Diego Colorado Desert UC178276 UCJEPS Pleuraphis rigida Katharine Brandegee 1915-6-01 San Bernardino Kelso; Mojave Desert, Kelso UC1861750 UCJEPS Pleuraphis rigida G. D. Wallace 1994 1982-5-15 Riverside Palms to Pines Highway, 7 level hill. UC1930116 UCJEPS Pleuraphis rigida J Mark Porter 2003-2-20 Imperial Algodones Dunes. Imperial Sand Dunes National Recreation Area, Algodones Wilderness. UC1930200 UCJEPS Pleuraphis rigida Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 10492A 2003-4-17 Riverside Peninsular Ranges, San Jacinto Mountains / Colorado Desert; East side of mouth of Chino Canon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. UC1979838 UCJEPS Pleuraphis rigida Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 955 2011-3-31 Riverside Mojave Desert; East Mojave Desert region: Dune system along Midland Rice Road, South Arica Mountains. UC1979847 UCJEPS Pleuraphis rigida Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 960 2011-4-5 Riverside Mojave Desert; East Mojave Desert region: Blythe-Rice Road, East / Northeast of Arica Mountains on Blythe-Rice Road, about 1 mile south of railroad crossing. UC1979868 UCJEPS Pleuraphis rigida Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jackie McConnaughy 803 2011-3-23 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region: Chuckwalla Mountas, North side, Alligator ACEC off I-10, south of Desert Center, in hills above Granite Mine. UC1982103 UCJEPS Pleuraphis rigida S. J. De Groot, Mary Motheral 6339 2010-4-24 San Bernardino Whipple Mountains: Along drainage below cove, NE of highest peak along summit ridge. UC218137 UCJEPS Pleuraphis rigida P. A. Munz, R. D. Harwood 3584 1920-4-02 Riverside Blythe Junc. UC34088 UCJEPS Pleuraphis rigida H. M. Hall 2847 1902-4-12 San Diego Coyote Canon; western borders of the Colorado Desert, Coyote Canon UC366028 UCJEPS Pleuraphis rigida J. G. Lemmon, wife 411 1941-6-29 Alameda Oakland UC373354 UCJEPS Pleuraphis rigida Marcus E. Jones 3795 1884-5-03 San Bernardino The Needles UC38597 UCJEPS Pleuraphis rigida H. M. Hall 2118 1901-6-01 Riverside eastern base San Jacinto Mountains (along the borders of the Colorado Desert); borders of the Colorado Desert, San Jacinto Mountains UC38598 UCJEPS Pleuraphis rigida S. B. Parish 4145 1896-4-04 Riverside desert base of San Jacinto Mt. Palm Springs (Agua Caliente) ((Agua Caliente)); , Palm Springs UC406744 UCJEPS Pleuraphis rigida Marcus E. Jones 24755 1929-9-16 Riverside e Desert Center; East of Desert Center UC496084 UCJEPS Pleuraphis rigida Roxana S. Ferris, Rimo Bacigalupi 8202 1932-4-29 San Bernardino base North Butte; Mopas Mountains, base of North Butte UC507792 UCJEPS Pleuraphis rigida Orcutt Collection 146 1917-4-01 San Diego Mountain Springs Grade UC51619 UCJEPS Pleuraphis rigida Jos. Burtt Davy 8037 1902-3-31 Imperial Flowing Wells UC519656 UCJEPS Pleuraphis rigida Victor Duran 3199 1932-5-12 San Diego near Mason Valley (head of Box Canon); near Mason Valley, head of Box Canon UC519841 UCJEPS Pleuraphis rigida N. Dunn, A. M. Martin 1932-3-26 Riverside Cottonwood Spring UC573683 UCJEPS Pleuraphis rigida H. S. Yates 6442 1937-3-23 Riverside 15 mi nne Mecca; Thermal Quadrangle UC578616 UCJEPS Pleuraphis rigida H. S. Yates 5431 1936-4-07 Riverside 10 mi e Whitewater; Thermal Quad., e of Whitewater UC589872 UCJEPS Pleuraphis rigida H. S. Yates 6424 1937-3-23 Riverside 5 mi nw Edom; Thermal Quad., nw of Edom UC604846 UCJEPS Pleuraphis rigida Roxana S. Ferris, Ruth P. Rossbach 9500 1938-5-14 San Bernardino on road to Box S Springs sandy desert 1.5 mi from Box S Ranch UC60777 UCJEPS Pleuraphis rigida Dr. A. Davidson 1975-8-23 Los Angeles Los Angeles UC612927 UCJEPS Pleuraphis rigida C. W. Sharsmith 518 1934-1-01 Imperial se Imperial County; southeastern Imperial County UC618992 UCJEPS Pleuraphis rigida H. S. Yates 6650 1937-6-25 San Bernardino 1/2 mi. n.w. Monarch Flat; San Gorgonio Quad. UC625872 UCJEPS Pleuraphis rigida Annie M. Alexander 360 1939-5-02 San Bernardino Pisgah 30.8 mi e Barstow UC625982 UCJEPS Pleuraphis rigida Annie M. Alexander 717 1939-5-08 San Bernardino nw side Copper Basin L.; Whipple Mts., nw side Copper Basin L. UC665771 UCJEPS Pleuraphis rigida Ira L. Wiggins 9612 1941-3-24 Imperial sandy desert wash on road to Beal Well 6 mi ne Niland UC677602 UCJEPS Pleuraphis rigida A. A. Beetle 3183 1942-4-22 Riverside Rt. 60 and 70, 5 mi e Shaver's Summit; e of Shaver's Summit UC68618 UCJEPS Pleuraphis rigida H. M. Hall 6104 1905-5-16 San Bernardino near Ash Hill (Mohave Desert); Mohave Desert UC71017 UCJEPS Pleuraphis rigida S. B. Parish 1901-5-01 San Bernardino Mohave Desert UC712142 UCJEPS Pleuraphis rigida Charles B. Fiker 3214 1945-6-23 San Diego Henderson ranch n Fall Brook UC724190 UCJEPS Pleuraphis rigida Aven, Ruth Nelson 3342 1939-3-30 Riverside Hiway 60 near Desert Center UC774768 UCJEPS Pleuraphis rigida Carl B. Wolf 10667 1941-5-26 San Bernardino 3 8/10 mi w Columbia Mine; Mojave Desert, Providence Mts. UC818424 UCJEPS Pleuraphis rigida C. L. Hitchcock 6138 1940-4-20 San Bernardino 4 mi below Horse Springs (ne part of county); below Horse Springs UC818425 UCJEPS Pleuraphis rigida C. L. Hitchcock 5934 1918-6-5 Riverside along 29 Palms Road 1 1/2 mi ne Cottonwood Spring (Joshua Tree Nat. Monument); , ne of Cottonwood Spring UC818427 UCJEPS Pleuraphis rigida I. W. Clokey, B. C. Templeton 4679 1930-4-09 Riverside n Palm Springs; Colorado Desert, n of Palm Springs UC818429 UCJEPS Pleuraphis rigida Alice Eastwood 2694 1913-4-13 San Diego Borega Wells; Colorado Desert, Borega Wells UC818430 UCJEPS Pleuraphis rigida Ivan Johnston 1093 1917-4-04 Riverside mouth of Andreas Canon; Colorado Desert, mouth of Andreas Canon UC912655 UCJEPS Pleuraphis rigida H. L. Mason 4198 1928-3-10 Riverside Whitewater River UCR148047 UCR Pleuraphis rigida Steve Boyd 11293 2004-5-14 Riverside Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage, within boundaries of U.S. Navy Chocolate Mountains Aerial Gunnery Range UCR148513 UCR Pleuraphis rigida Steve Boyd 10683 2004-3-30 San Bernardino S end of the Cady Mountains, NW of Ludlow (N of Interstate 40) about hill topped with communication towers UCR148518 UCR Pleuraphis rigida Steve Boyd 11446 2004-6-1 San Bernardino Clark Mountain, west flank of the range in large canyon south of Pachalka Spring UCR228597 UCR Pleuraphis rigida Sarah J. De Groot 6339 2010-4-24 San Bernardino Whipple Mountains, along drainage below cove, northeast of highest peak along summit ridge UCR243173 UCR Pleuraphis rigida LeRoy Gross 4356 2010-4-12 Riverside Whitewater Canon Bioblitz: From camp near 34.02 N, 116.68 W, east of the Paw, near the mouth of Canon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W. Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Canon; Transverse Ranges; San Bernardino Mountains region
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