Search Results — 695 specimen records retrieved (657 records with coordinates)
Results for search: Scientific name=Mentzelia involucrata (including nomenclatural synonyms);   More information: Jepson Online Interchange
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC168481  Mentzelia involucrata Sarah J. De Groot; J. Mark Porter; Naomi Fraga; Lauren Machen 2003-5-4 2779 San Bernardino Whipple Mountains: South side of range, along Colorado River aqueduct W of Chamber's Well Road 285 Comment
  CAS-BOT-BC168484  Mentzelia involucrata Sarah J. De Groot; Michael Denslow 2003-3-20 2086 San Bernardino Whipple Mountains: Road to Twin Lode Mine, off Needles-Parker road, south side of mountains 347 Comment
  CAS-BOT-BC168491  Mentzelia involucrata Sarah J. De Groot; Michael Denslow 2003-3-20 2009 San Bernardino Whipple Mountains: West side, wide wash along Needles-Parker road south of D&W mine 435 Comment
  CAS-BOT-BC174347  Mentzelia involucrata Sarah J. DeGroot; Michael Denslow 2003-3-19 1873 San Bernardino Whipple Mountains: West side, along East Mojave Heritage Trail, east of Pyramid Butte 447 Comment
  CAS-BOT-BC176424  Mentzelia involucrata Sarah J. DeGroot; Angela Gatto; Chris Stevenson; Constance Baldwin 2003-4-19 2350 San Bernardino Whipple Mountains: Canyon on NE side of mountains, off powerline road 287 Comment
  CAS-BOT-BC177107  Mentzelia involucrata Sarah J. De Groot; J. Mark Porter; Naomi Fraga; Lauren Machen 2003-5-3 2698 San Bernardino Whipple Mountains: S/SE side along aqueduct road, SW of Bowman's wash 298 Comment
  CDA36624  Mentzelia involucrata T. C. Fuller 1959-4-7 2375 San Bernardino 3 miles east of Colorado River, 22 miles south of Needles. 0 Comment
  CDA36637  Mentzelia involucrata T. C. Fuller 1962-4-4 8094 Imperial Shell Canyon Road, south of Coyote Mountain, 2.8 miles north of Ocotillo. 0 Comment
  CDA36638  Mentzelia involucrata T. C. Fuller 1962-4-4 8096 Imperial Coyote Mountain, Shell Canyon Road, 3.6 miles north of Ocotillo. 0 Comment
  CHSC109286  Mentzelia involucrata Steve Boyd; T. Morgan, A. Virgen, S. DeGroot, V. Arvizu 2004-5-14 11219 Riverside Colorado Desert: Chocolate-Chuckwalla Mountains region: Western base of the Chocolate Mountains, small canyon ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  CHSC99049  Mentzelia involucrata LeRoy Gross 2005-3-3 1574 Riverside Colorado Desert; Northeastern Colorado Desert region: Palen Mountains, south side. Near end of old prospect road. 68 Comment
  CLARK-A1045-876  Mentzelia involucrata George K. Helmkamp 1977-3-20 Riverside Deep Canyon UCR Boyd Deep Canyon Reserve; sandy bottom of dry wash; ; ; Palm Desert 15'Q 304 Comment
  CLARK-A1528-3165  Mentzelia involucrata John C. Roos 1948-4-24 3801 Riverside Whitewater 518 Comment
  CLARK-A1528-3219  Mentzelia involucrata Lawrence F. LaPre' 1969-5-11 93 San Bernardino Little San Bernardino Mountains 701 Comment
  CLARK-A1528-606  Mentzelia involucrata Shirley Hill 1963-3-23 630323-3 Riverside Box Canyon Comment
  CLARK-A1656-879  Mentzelia involucrata Lois Ann Scott 1977-12-2 Riverside Big Morongo Canyon Comment
  CSUSB822  Mentzelia involucrata M. Quinlan 1974-4-18 Riverside Found in Riverside county about 4 miles from Palm Springs in the Agua Caliente Indian Reservation located in the San Andreas canyon. 304 Comment
  CSUSB968  Mentzelia involucrata W. C. Anderson 1968-4-22 680422 12 San Bernardino 2 miles south of Cottonwood Guard Station, Joshua Tree National Monument. Collected in wash. Comment
Read comments
Dec 23 2016
  CSUSB969  Mentzelia involucrata Leland R. Dykes 1962-4-1 10 Riverside White Water Canyon Road, 4.5 miles north of US 60 Comment
  CSUSB970  Mentzelia involucrata Art Whistler 1966-3-26 s.n. Riverside 1 mile below the entrance to the Philip L. Boyd Desert Reseach Center, Deep Canyon. 100 yards off the road in a deep wash Comment
  GH403210  Mentzelia involucrata D. H. Goldman 2005-3-3 3035 Unknown Box Canyon, along the W. side of Box Canyon Road, around 10 mi SW of the intersection with Interstate 10 and around 0.7 mi SE of Blake Hill 268 Comment
  GMDRC10341  Mentzelia involucrata J. M. Andre 2017-3-25 38923 San Bernardino Whipple Mountains: along powerline road, north end of range, 4.3 mi. north (road miles) from Whipple Wash crossing 365 Comment
  GMDRC1212  Mentzelia involucrata J. Andre, Frank Smith 1997-3-26 4171 San Bernardino Bullion Mountains: Cleghorn Pass, USMC 29 Palms Near 34 deg. 19.027' N 115 deg. 56.335' W. Elev. 2000 ft. 610 Comment
  GMDRC1484  Mentzelia involucrata J. Andre 2003-4-19 4680 San Bernardino Piute Range: Piute Range: cliffs along lower Piute Creek. Elev. 2667 . 813 Comment
  GMDRC1717  Mentzelia involucrata J. Andre, G. L Clifton 2005-4-6 4937 San Bernardino Iron Mtns: Iron Mtns: growing on granitic rocky slopes on W. side of poleline road at pass, SE side of Iron Mtns. Elev. 1112 ft. 339 Comment
  GMDRC2675  Mentzelia involucrata J. Andre 2003-2-23 9292 San Bernardino Whipple Mountains: Whipple Mountains: large wash along MWD rd, approx. 1 mi SW of Parker Dam 34 deg. 17.7' N 114 deg. 9.085' W. Elev. 577 ft. 176 Comment
  GMDRC2914  Mentzelia involucrata J. Andre 2008-2-16 9772 San Bernardino Bristol Mountains: N. side of RR tracks at 'Bish Mountain', the reddish brown cinder cone approx 9.5 mi. W. of town of Amboy, just 1/2 mi. N. of highway 66 (Natl. Trails Hwy)... Elev. 1107 ft. 338 Comment
  GMDRC5908  Mentzelia involucrata J. Andre, T. La Doux 2010-4-2 19628 San Bernardino Little San Bernardino Mountains: Pinto Mountains; 2.5 mi. south of Clarks Pass (Hwy 62), in rocky (dark granite) north-facing canyon 632 Comment
  GMDRC7793  Mentzelia involucrata J. M. Andre 2015-3-6 33559 Riverside Coachella Valley: far NW corner of valley, 0.5 mi west of Hwy 62 (at mouth of Dry Morongo Wash), 0.3 mi. north of Kolbe Rd (dirt). 561 Comment
  GMDRC9900  Mentzelia involucrata J. M. Andre 2017-4-3 38261 San Bernardino Bullion Mountains: about 4 mi. SSW of Ludlow (I-40), gravelly hills 696 Comment
  HSC15870  Mentzelia involucrata C. L. Hitchcock, C. V. Muhlick 1964-3-20 23192 Imperial Along Hwy. S2, 7 mi. N of junction with Hwy. 80 Comment
  HSC78061  Mentzelia involucrata A. C. Sanders 1983-4-23 3774 San Bernardino Whipple Mtns., Whipple Wash where it joins the road to Havasu Landing, 0.5 mi. below Willow Spring and 1.5 mi. above Lake Havasu 168 Comment
  HSC82825  Mentzelia involucrata A. C. Sanders, Charlton, Pitzer, Kniffen, Wright 1986-3-10 6256 Imperial Coyote Mtns., 2.15 mi. N of Hwy. S-2 on dirt road l.l mi. SE of San Diego Co. line 306 Comment
  JEPS103714  Mentzelia involucrata Dave Silverman with Ellen Schafhauser 1998-4-2 141 San Bernardino SE San Bernardino Co., E. Whipple Mountains, Whipple Wash canyon, on ridge SE of canyon, MWD powerline access road at second tower pad access SE of wash; Colorado Desert; Site #1 275 Comment
  JEPS20770  Mentzelia involucrata Roxana S. Ferris and Rimo Bacigalupi Mar 19 1958-Mar 25 1958 13257 Riverside 2.3 mi above Midland P.O. (U.S. gypsum mine property.); Little Maria Mts. Comment
  JEPS20783  Mentzelia involucrata Roxana S. Ferris and Rimo Bacigalupi Mar 19 1958-Mar 25 1958 13305 San Bernardino ca 4 mi Kelso (along road betw. Kelso & Vulcan Mine); Providence Mts. Comment
  JEPS22159  Mentzelia involucrata Rimo Bacigalupi with Paul Hutchison 1958-2-17 6148 Imperial just w of and above summitt of road (Ogilby-Blythe road) (over Palo Verde Mountains) 243 Comment
  JEPS22161  Mentzelia involucrata Rimo Bacigalupi with Paul Hutchison 1958-2-17 6146 Imperial 1 1/2 mi n southern base of the Palo Verde Mountains (Along Blythe-Ogilby) 243 Comment
  JEPS22541  Mentzelia involucrata Rimo Bacigalupi with Paul Hutchison 1958-2-18 6169 Imperial 4.5 mi s Palo Verde settlement (Sandy areas of arroyo running eastward into Laguna Palo Verde.); northeastern base of the Palo Verde Mts. 88 Comment
  JEPS23031  Mentzelia involucrata Reino Alava with R. Bacigalupi, Dr. and Mrs. Rolla Tryon 1958-3-2 1755 San Bernardino About 10 mi nw Needles (Gravels at junction of U.S. Highways 66 and 95.) 365 Comment
  JEPS26727  Mentzelia involucrata Marjorie D. Clary 1933-3-12 2119 Imperial Southwest Coloroda Desert, Palm Creek 121 Comment
Read comments
Sep 8 2016
  JEPS40800  Mentzelia involucrata L. M. Newlon 554 San Bernardino 2 mi n of summit Whipple Mts. (on Needles-Parker road.) Comment
  JEPS40804  Mentzelia involucrata L. M. Newlon 1922-4-9 506 San Bernardino sw Newberry; Mojave Desert, Sava Comment
  JEPS41138  Mentzelia involucrata Mary Beal 1940-3-25 755 San Bernardino s Ludlow; Mojave Desert, Bullion Mts., Bagdad-Phase Mine Comment
  JEPS41155  Mentzelia involucrata W. L. Jepson 1940-4-22 19648 Inyo Johnson Canyon, Panamint Range 1219 Comment
  JEPS42801  Mentzelia involucrata E. E. Schellenger 1920-4-1 Riverside Canyon near Coachella; Colorado Desert Comment
  JEPS42802  Mentzelia involucrata W. L. Jepson 1928-4-23 12552 Riverside Cottonwood Mts., Cottonwood Spr. 487 Comment
  JEPS42803  Mentzelia involucrata W. L. Jepson 1920-4-29 8882 San Diego w.Colorado Desert, Borrego Spr. 152 Comment
  JEPS42804  Mentzelia involucrata L. M. Newlon, Dr. 1922-4-1 390 Imperial 3 mi w Coyote Wells Comment
  JEPS42805  Mentzelia involucrata W. L. Jepson 1927-4-11 11620 Riverside Bridge Colorado Desert, Whitewater 457 Comment
  JEPS42806  Mentzelia involucrata W. L. Jepson 1927-4-12 11646 Riverside Mecca Hills, Painted Canyon 121 Comment
  JEPS42807  Mentzelia involucrata W. L. Jepson and W. C. Mathews 1914-5-18 6009 Riverside n Indio (Pinon Well to County Well) 457 Comment
  JEPS42808  Mentzelia involucrata W. L. Jepson 1901-5-22 1353 Riverside and return to Vandeventer Palm Canyon Comment
  JEPS42809  Mentzelia involucrata L. M. Newlon 1922-4-1 390 Imperial 3 mi w Coyote Wells; Colorado Desert Comment
  JEPS68876  Mentzelia involucrata Annie M. Alexander and Louise Kellogg 1939-5-6 391 San Bernardino nw side Copper Basin Lake (above Crossroads) 198 Comment
  JEPS8537  Mentzelia involucrata Rimo Bacigalupi with L. R. Heckard and Mary Beal 1952-4-27 3668 San Bernardino 8 1/2 mi s Ludlow (Canyon behind Bagdad-Chase Mine); Mojave Desert, Bullion Mountains Comment
  JEPS89048  Mentzelia involucrata Marjorie D. Clary 1932-4-12 1596 Riverside 8 mi sw Coachella; Colorado Desert, Coral Reef Canyon Comment
  JEPS89280  Mentzelia involucrata Rimo Bacigalupi, and L. Heckard, P. C. Hutchison 1962-3-20 8315 Imperial just nw Yuma, Ariz. (wash at mouth of Picacho Wash, along Picacho road, 5 mi n of its junction with old U.S. Hwy 80, and 0.2 mi n of the All-American Canal); Picacho Wash 60 Comment
  JOTR16739  Mentzelia involucrata Supernaugh, William R. 1968-4-4 s.n. Riverside Joshua Tree National Park. GOLD PARK 1097 Comment
  JOTR29305  Mentzelia involucrata La Doux, Tasha, Mike Bell 2006-5-17 1382 Riverside Joshua Tree National Park. East Deception Canyon Comment
  JOTR29361  Mentzelia involucrata La Doux, Tasha, Bill Truesdell, Naomi Fraga 2006-4-26 1438 San Bernardino Joshua Tree National Park. Long Canyon; Stop 3, steep slopes/ridges east of Long Canyon 1079 Comment
  JOTR29603  Mentzelia involucrata Andre, Jim 2006-4-26 6760 Riverside Joshua Tree National Park. Long Canyon, approximately 2.3 mi. S of NE corner (boundary) of park 1055 Comment
  JOTR31008  Mentzelia involucrata La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1294 Riverside Joshua Tree National Park. Stop 5: Hexie Mountains, steep gravel slopes above north side of Blue Cut Gorge Comment
  JOTR31891  Mentzelia involucrata La Doux, Tasha, M. Harding, K. Kain, E. Babich 2011-3-22 2141 Riverside Joshua Tree National Park. West Cottonwood Mountains; southeast edge of Pinkham Wash, east of Pinkham Canyon Road; rocky flats between small drainages in mouth of Pinkham Wash Comment
  JOTR31930  Mentzelia involucrata La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2170 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky wash draining into west Pinkham Wash Comment
  JOTR31931  Mentzelia involucrata La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2170 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky wash draining into west Pinkham Wash Comment
  JOTR32038  Mentzelia involucrata La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler, B. Truesdell, D. Shade 2011-4-26 2268 Riverside Joshua Tree National Park. Pleasant Valley, southwestern edge of Hexie Mountains; near Squaw Tank; sandy flats among large granitic boulders and foothills (Stop 2) 1063 Comment
  JOTR32169  Mentzelia involucrata La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2321 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Large sandy canyon with braided wash that feeds southwest into Wilson Canyon (Stop 7) 902 Comment
  JOTR32196  Mentzelia involucrata Harding, Mitzi & Herskovits, Tasya, D. Oquendo 2011-5-5 s.n. Riverside Joshua Tree National Park. Little San Bernardino Mountains; Northeast flowing steep side canyon of Pushawalla Canyon, almost parallel to main canyon (Stop 5) 1171 Comment
  JOTR32217  Mentzelia involucrata La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-4-13 2231 San Bernardino Joshua Tree National Park. Northeast boundary of park near Twentynine Palms entrance; Northeast of Queen Mountain and below '"Indian Head""; Large wash at the base of eastern Queen Mountains (Stop 2) 718 Comment
  JOTR34006  Mentzelia involucrata La Doux, Tasha, M. Harding 2010-4-7 2894 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; side canyon leading north, approx. 1 mile north of park boundary Comment
  JOTR34323  Mentzelia involucrata Andre, Jim 2012-4-11 20824 Riverside Joshua Tree National Park. Western margin of Eagle Mountains; 0.6mi south of Cottonwood Visitor Ctr. along Rte 11 912 Comment
  JOTR35063  Mentzelia involucrata La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3515 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. Comment
  JOTR36438  Mentzelia involucrata La Doux, Tasha, M. Harding, B. Truesdell, D. Shade, E. Babich 2013-3-15 3410 Riverside Joshua Tree National Park. Southeast Coxcomb mountains; just west of bend in Hwy 177 near park boundary; desert pavements w/ braided rivulets (Stop 1) 213 Comment
  JOTR37427  Mentzelia involucrata La Doux, Tasha 2016-3-9 3662 Riverside Above Hayfield Dry Lake - Stop 2 516 Comment
  OBI12515  Mentzelia involucrata Robert F. Hoover 1958-4-19 8454 Kern S of Jawbone Cyn, W edge of Mohave Desert Comment
  OBI12516  Mentzelia involucrata P. A. Holden 1969-4-6 708 Riverside Just W of hwy 62 at ft of Morongo Grade 8 mi W of Desert Hot Springs Comment
  OBI12517  Mentzelia involucrata Robert F. Hoover 1958-4-19 8454 Kern S of Jawbone Cyn, W edge of Mohave Desert Comment
  OBI8349  Mentzelia involucrata David J. Keil, Malcolm McLeod, Dirk Walters 1977-3-27 12064 Riverside Along Box Cyn Rd, ca 20 mi ENE of Mecca in Orocopia Mts 274 Comment
  PASA1556  Mentzelia involucrata 1928-3-3 Riverside Near Whitewater Comment
Read comments
Jun 24 2016
  POM14007  Mentzelia involucrata P. A. Munz, D. D. Keck 1922-4-9 4827 Riverside South base of Eagle Mountains 3 miles NE of the 'Hayfields' 213 Comment
  POM156245  Mentzelia involucrata L. R. Abrams 1903-4-2 8166 Imperial Signal Mountain, Colorado Desert. Comment
  POM213777  Mentzelia involucrata P. A. Munz 1935-4-8 13826 San Bernardino Sheephole Mountains. 1067 Comment
  POM258646  Mentzelia involucrata P. A. Munz 1940-1-28 15779 San Diego Old Carrizo Station. Comment
Read comments
May 2 2014
  POM294421  Mentzelia involucrata Lyman Benson, Robert Benson 1952-4-8 14845 Riverside Colorado Desert. 2 miles west of Shaver Summit, east of Indio, US 66. Colorado Desert Drainage Area. 610 Comment
Read comments
Mar 26 2011
  POM295596  Mentzelia involucrata Lyman Benson 1945-3-29 11637 Riverside Canyon on Palm Spring Rd. Little San Bernardino Mt 610 Comment
  POM306693  Mentzelia involucrata Henry J. Ramsey, Henry J. Ramsey 1938-4-26 1689 Riverside Near Desert Center-Indio. Comment
  POM83428  Mentzelia involucrata Marcus E. Jones 1897-4-30 s.n. Inyo Shepherd s Canyon. 1402 Comment
  POM83429  Mentzelia involucrata Marcus E. Jones 1884-5-8 3855 a San Bernardino Needles. Comment
  POM8349  Mentzelia involucrata P. A. Munz, R. D. Harwood 1920-4-1 3679 San Bernardino Needles. 213 Comment
  POM83643  Mentzelia involucrata Marcus E. Jones 1906-5-2 s.n. San Bernardino Kelso. 915 Comment
  POM83644  Mentzelia involucrata Marcus E. Jones 1906-4-19 s.n. San Diego Canyon west of Borrego Spring. 457 Comment
  POM83648  Mentzelia involucrata Marcus E. Jones 1906-4-25 s.n. Imperial West of Yuma. Comment
  RSA0013095  Mentzelia involucrata Duncan S. Bell, Kim Clark, Megan Ferguson, Jane Ferguson, Amber Swanson, Jane Tirrell, Adriana VanKlaveren 2013-3-17 4552 Imperial The Jacumba Mountains; collecting in Davies Canyon, approximately 3.75 air miles south of the town of Ocotillo. 233 Comment
  RSA0014463  Mentzelia involucrata Justin M. Wood, J. Miner 2010-4-29 1537 Riverside Coachella Valley: Bermuda Dunes. Near intersection of Avenue 38 and Varner Rd. 37 Comment
  RSA0016111  Mentzelia involucrata Jim Andre, G. L. Clifton 2013-3-5 24260 San Bernardino Whipple Mountains; east side of range, just south of Whipple Wash in side canyon, 3.2 mi. N of jct. with MWD Road, east of powerline rd., and 9.6 mi. NNW of Jct Parker Dam Rd. 259 Comment
  RSA0019475  Mentzelia involucrata Jim Andre, G. L. Clifton, Ron Kelley 2013-3-21 24389 Riverside West Riverside Mountains; at base of NW corner of range where sand ramps West Ridge, south of Double View Drive and Deer Foot Lane. Southwest from Idyllwild, and Strawberry Valley., Started near 33.72895N, 116.73415W. And ended at Inspiration Point, near run up against granitic bouldery slopes, about 10 miles SW of Vidal Jct., 3 miles south of Grommet RR xing at Highway 62. 363 Comment
  RSA0024973  Mentzelia involucrata Jim Andre 2013-3-28 25044 San Bernardino Whipple Mtns: southeast side of range, 0.6 miles west of Parker Dam Rd., 1.5 miles NNW of Parker (bridge). 118 Comment
  RSA0025565  Mentzelia involucrata Jim Andre 2013-3-29 25217 San Bernardino Piute Mountains, 1.3 mi. north of I-40, approx 5 mi. south of Goffs. 824 Comment
  RSA0031612  Mentzelia involucrata Jim Andre 2013-3-27 24817 Riverside Riverside Mountains; east side of Riverside Mountains, along Hwy 95, 13.2 mi. south of Vidal Jct. 126 Comment
  RSA0034224  Mentzelia involucrata Sarah J. De Groot, April Garbat 2013-3-28 6966 San Bernardino Whipple Mountains: Along BLM road 056 (powerline road) north of Whipple Wash, just northwest of wash crossing road, south of Chemehuevi Wash. 253 Comment
  RSA0040091  Mentzelia involucrata Duncan S. Bell, Deidre Conocchioli 2014-3-18 6261 Riverside Orocopia Mountains; southern/central section of range; approximately 0.75 air mile northwest of Gucci Spring. 483 Comment
  RSA0043029  Mentzelia involucrata Duncan S. Bell, Loraine Washburn 2014-4-8 6575 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern/central section of range; approximately 2.25 air miles north of Clemens Well and Bradshaw Trail. 495 Comment
  RSA0047430  Mentzelia involucrata Duncan S. Bell 2014-4-25 6626 San Bernardino The Pioneertown Mountains Preserve; Black Hill, just to the north of Pioneertown. 1361 Comment
  RSA0049911  Mentzelia involucrata Jim Andre 2014-1-28 26697 San Bernardino Dead Mountains; south end of range along banks of Piute Wash, approx. 8 mi. west of Needles. 309 Comment
  RSA0062462  Mentzelia involucrata Jim M. Andre 2013-4-10 24419 San Bernardino Old Woman Mountains; at mouth of Carbonate Gulch, NW end of range, approx 5 mi. east of Jct BLM Rd #195. 739 Comment
  RSA0073211  Mentzelia involucrata Jim Andre 2013-3-20 26130 San Bernardino Sacramento Mountains: along gas pipeline road (BLM#NS061) at southern end of Sacramento Mtns, south of I-40, 3.6 mi. east of major utility lines access road, about 1 mi. west of Flattop Mtn. 663 Comment
  RSA0078022  Mentzelia involucrata Jim Andre 2014-3-3 27632 San Bernardino Newberry Mountains: in Kane Wash drainage at contact zone between lava flow and granitic substrates, southeast end of Newberry Mtns, just north of Rodman Mtns, along pipeline road about 5 mi. south of I-15 (Newberry Springs). 872 Comment
  RSA0081276  Mentzelia involucrata Jim M. Andre 2014-1-10 30234 San Bernardino Dead Mountains; extreme south end of range at Piute Wash, just north of Interstate 40, just east of US Hwy 95. 321 Comment
  RSA0081619  Mentzelia involucrata Jim M. Andre 2012-4-11 20824 Riverside Joshua Tree National Park; western margin of Eagle Mtns, along road to Cottonwood Spr (Utah Trail), 0.6 mi. south of Cottonwood Visitor Ctr. 913 Comment
  RSA0092011  Mentzelia involucrata Jim M. Andre 2015-3-3 31296 Imperial Eastern base of Jacumba Mountains, 1.3 mi. south of Hwy 98, approx. 2 mi. south of Ocotillo. Volcanic gravelly hills at margin of sandy wash at wilderness boundary. 246 Comment
  RSA0096489  Mentzelia involucrata Jim M. Andre 2015-3-3 31328 Imperial Along dirt road 0.6 mi. west of Imperial Hwy (Hwy S2), 7.5 mi NW of town of Ocotillo, just east of San Diego County line. 252 Comment
  RSA0104078  Mentzelia involucrata Duncan S. Bell, Evan Meyer 2014-10-28 7670 Riverside Orocopia Mountains; northwest section of range; approximately 1.8 air miles northwest of the summit of Orocopia Mountain. 936 Comment
  RSA0106761  Mentzelia involucrata Duncan S. Bell, Amanda Turek 2009-3-29 140 Riverside Central section of the Arica Mountains; within the Palen/McCoy Wilderness area; large narrow canyon to the west of Priest Mine. 420 Comment
  RSA0118117  Mentzelia involucrata Sarah J. J. De Groot 2016-3-22 7704 San Bernardino Clipper Mountains, Danby Road NS 206 ca. 0.7 miles northwest of Highway 66; northwest of Danby, ca. 0.7 miles south of Bonanza 599. 478 Comment
  RSA0123364  Mentzelia involucrata Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9040 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Agua Alta Canyon, approximately 3.5 air miles southeast of the summit of Martinez Mountain. 639 Comment
  RSA124076  Mentzelia involucrata Percy C. Everett, E. K. Balls 1958-4-29 23009 Riverside Hwy 60/70, Indio to Blythe, 6.5 miles E from Jct with Hwy 9. 244 Comment
  RSA124335  Mentzelia involucrata E. K. Balls, P. C. Everett 1958-3-20 22921 Imperial Ogilby, 152 Comment
  RSA191729  Mentzelia involucrata Robert F. Thorne, R. Rutherford 1964-4-10 33577 Imperial Ca 1 mile SE of Glamis on road to Ogilby. Comment
  RSA191731  Mentzelia involucrata Robert F. Thorne, R. Rutherford 1964-4-11 33637 Imperial Araz Wash, between Pasadena and Stud Mountains, Cargo Muchacho Mountains. 305 Comment
  RSA19534  Mentzelia involucrata Roxana S. Ferris, Ruth P. Rossbach 1938-5-17 9613 Imperial Upper end of Painted Gorge, Carisso Mountains. Comment
  RSA239809  Mentzelia involucrata C. W. Tilforth 1973-4-29 774 Riverside 2 miles S of Bridge at base of Seven Level Hill, S of Palm Desert, Hwy 74 457 Comment
  RSA247307  Mentzelia involucrata Gary D. Wallace 1966-4-5 385 San Bernardino Waterman Hills, Moajve Desert, 3 mi. north of Barstow 640 Comment
  RSA253718  Mentzelia involucrata Noel Holmgren, Patricia K. Holmgren, Ruth E. Kern 1973-3-21 6428 Riverside Big Maria Mountains, 12 air miles north of downtown Blythe. 290 Comment
  RSA275132  Mentzelia involucrata Robert F. Thorne 1978-5-8 51142 San Bernardino Granite Mts: lower end of Bull Canyon, NNW side of Granite Mts, S of Kelso Dunes 762 Comment
  RSA278656  Mentzelia involucrata Barry A. Prigge 1978-4-22 2624 San Bernardino 14 air miles ENE of Ludlow, 17.8 miles W of Kelbaker Road on Powerline Rd. 640 Comment
  RSA395950  Mentzelia involucrata Steve Boyd 1986-2-6 1214 Imperial Cargo Muchacho Mountains, large canyon at SE end of mountains, 5.4 miles NE of I-8 off Sidewinder Rd and Power-line Rd. Comment
  RSA440403  Mentzelia involucrata Robert Gustafson 1983-3-27 2481 Riverside Dry rocky canyon southwest of Lake Cahuilla . Comment
  RSA440404  Mentzelia involucrata N. R. Zabriskie, W. M. Zabriskie 1973-4-25 652 Riverside W-central portion Sec 30. Deep Canyon drainage, E side Hwy 74, opposite Black Hill, Santa Rosa Mtns. Site 22. 915 Comment
  RSA440405  Mentzelia involucrata N. C. Cooper 1949-4-8 3249 Riverside Indio. Mecca Pass, east of Indio. 457 Comment
  RSA440407  Mentzelia involucrata M. B. Dunkle 1935-3-30 4429 Riverside Pinto Basin, Colorado Desert. 915 Comment
  RSA440408  Mentzelia involucrata Chas. Gabriel 1926-1-28 239 Riverside Rincon [R. Village, Andreas Canyon] Comment
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Nov 17 2011
  RSA440409  Mentzelia involucrata Christopher Davidson 1979-4-4 7709 Riverside Orocopia Mountains: Box Canyon on Box Canyon Road, 5.9 miles E of Mecca 305 Comment
  RSA440410  Mentzelia involucrata Christopher Davidson 1973-4-1 1839 Riverside Along Hwy 74 on desert hillside facing Palm Desert. 488 Comment
  RSA440411  Mentzelia involucrata Geo. Cantwell 1935-4-8 s.n. Riverside McCoy Springs, McCoy Mnts. [NW of Blythe] Comment
  RSA440412  Mentzelia involucrata May N. Ackley 1928-3-10 s.n. Riverside Bridge Haven, Comment
  RSA440413  Mentzelia involucrata L. H. Jones 1910-3-18 s.n. Riverside Riverside Mountain, near the Colorado River. Comment
  RSA440414  Mentzelia involucrata H. M. Hall 1905-04 5803 Riverside 8 miles W of Indio Comment
  RSA440415  Mentzelia involucrata Anstruther Davidson 1903-5-3 s.n. Riverside Thermal. Comment
  RSA440416  Mentzelia involucrata Anstruther Davidson 1893-4-10 s.n. Riverside Palm Springs. Comment
  RSA440417  Mentzelia involucrata S. B. Parish 1907-4-22 6148 Riverside Palm Canyon, Western Border of the Colorado Desert. 200 Comment
  RSA440419  Mentzelia involucrata H. C. Ackley 1926-02 s.n. Riverside Shavers Well, Colorado Desert. Comment
  RSA440421  Mentzelia involucrata E. C. Jaeger 1922-3-25 755 Riverside Murray Canon, near Palm Springs. 305 Comment
  RSA440422  Mentzelia involucrata G. R. Johnstone 1930-4-14 14661 Riverside Shavers Well Comment
  RSA440423  Mentzelia involucrata A. C. Life 1916-2-20 s.n. Riverside Colorado Desert Comment
  RSA440424  Mentzelia involucrata Martha Hilend 1928-3-23 110 Imperial Wash N of Palm Wash, SW of Fish Springs. [just W of Salton Sea] Comment
  RSA440425  Mentzelia involucrata Robert L. Dressler 1949-3-19 402 Riverside Box Canyon, Orocopia Mts. Comment
  RSA440426  Mentzelia involucrata T. W. Minthorn 1926-5-14 s.n. Riverside Near Indio, Colorado Desert. Comment
  RSA440427  Mentzelia involucrata H. de Forest, Jack Rempel 1933-4-10 17750 Imperial Pass in Mountains, Chocolate Mountains, Colorado desert. Comment
  RSA440430  Mentzelia involucrata N. C. Cooper 1949-3-16 3046 Imperial West of Yuma 244 Comment
  RSA440432  Mentzelia involucrata Maurice Zigmond 574 Kern Jawbone Canyon. Comment
  RSA440434  Mentzelia involucrata M. B. Dunkle 1935-4-16 4521 San Bernardino Piute Mountains. 1220 Comment
  RSA440435  Mentzelia involucrata Geo. Cantwell 1935-4-10 s.n. San Bernardino Hidden Springs Comment
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Aug 28 2016
  RSA440436  Mentzelia involucrata G. Gugisberg 1957-4-21 16 San Bernardino Mojave Desert, in dry wash W of Earp. Comment
  RSA440438  Mentzelia involucrata Ralph Hoffman 1931-6-13 s.n. San Bernardino 6 miles E of 29 Palm. Comment
  RSA48392  Mentzelia involucrata P. A. Munz 1949-3-27 12889 San Diego head of Borrego Valley 76 Comment
  RSA488898  Mentzelia involucrata Maureen Pendleton 1988-3-29 s.n. San Bernardino 2 miles E of Pioneer town. 1311 Comment
  RSA510022  Mentzelia involucrata B. Pitzer 1988-3-10 649 Riverside Chuckwalla Mountains. W side of mountains, on gas line road ca. 1.5 mi north of intersection with Red Cloud Mine Road (and wash); ca. 2 miles (airline) S of Highway I-10. (Red Cloud Road. 10 km cell; PH-2N, 3E) 488 Comment
  RSA517824  Mentzelia involucrata Steve Boyd, Orlando Mistretta 1986-3-13 1442 Riverside West side Palen Mts.: NE of Desert Center. Comment
  RSA525255  Mentzelia involucrata Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4567 Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 549 Comment
  RSA552579  Mentzelia involucrata D. Charlton 1991-4-20 4882 San Bernardino Northern Stepladder Mountains; N Ward Valley; 17 miles south anf 6 miles east of Water Road turnoff, Hwy 40. 610 Comment
  RSA553997  Mentzelia involucrata J. Wear, Tim Wade 1991-5-7 91 -60 San Bernardino East Mojave Desert, Hacienda Wash, at the intersection of HwyI-40 & Hwy 95, ca. 2.5 air mi. SE of Klinefelter. Comment
  RSA554206  Mentzelia involucrata Theo Glenn 1991-5-2 91 -29 Riverside McCoy Mtns, NW of Blythe. 350 Comment
  RSA563011  Mentzelia involucrata D. Charlton 1991-4-6 4761 Kern Copper Queen Mine Rd., Southern Sierra, 3 miles south of Red Rock Canyon; 762 Comment
  RSA617859  Mentzelia involucrata Walter Wisura 1998-3-28 5116 Riverside Corn Spring, S of I-10. Comment
  RSA649332  Mentzelia involucrata Marie Cichra 1976-4-25 107 Riverside Corn springs, approx. 13 miles from intersection of Corn Springs Road and Chuckwalla Rd., off I-10. Comment
  RSA656535  Mentzelia involucrata A. C. Sanders 2000-4-25 23358 Riverside east side of the Coachella Canal between I-10 and Ave. 56 (Airport Rd.), 3 miles E of Thermal 15 Comment
  RSA676039  Mentzelia involucrata Scott D. White 2001-4-11 8289 Riverside Sonoran Desert: Indio Hills foothills / Coachella Valley. Northern terminus f Rio Del Sol Road, about 2 miles north of Thousand Palms. 146 Comment
  RSA676101  Mentzelia involucrata Scott D. White 2001-4-3 8266 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  RSA678227  Mentzelia involucrata Valerie L. Soza, J. Mark Porter, Gary D. Wallace 2001-4-2 1096 Riverside Mouth of West Wide Canyon, west side of Channel Run. 442 Comment
  RSA678362  Mentzelia involucrata Steve Boyd, Amber Maurice, Pesach Lubinsky, Lel Lubinsky 2003-4-17 10503 Riverside West side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains. Comment
  RSA682849  Mentzelia involucrata Scott D. White 2003-3-23 8842 Riverside Desert slope; Hwy 74 near Carrizo Creek crossing. 610 Comment
  RSA692200  Mentzelia involucrata Scott D. White, Michael Honer 2003-5-14 9301 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  RSA69541  Mentzelia involucrata F. W. Peirson 1941-4-8 s.n. Imperial Painted Gorge north of the San Diego to El Centro hwy. Comment
  RSA69582  Mentzelia involucrata F. W. Peirson 1922-4-9 753 Riverside Palm Canyon stream near Alkali Canyon, Riverside County Comment
  RSA69583  Mentzelia involucrata F. W. Peirson 1932-3-22 9800 Imperial Midway Well 152 Comment
  RSA69585  Mentzelia involucrata F. W. Peirson 1933-4-13 10637 Riverside Road from Deep Canyon to Idyllwild. 610 Comment
  RSA696152  Mentzelia involucrata LeRoy Gross, Valentin Arvizu, Sarah J. De Groot, Lisa Rojas, Tim Thibault 2004-5-13 1260 Imperial Chocolate Moutains (Chocolate Moutain Aerial Gunnery Range). Near Surveyors Pass, surrounding desert off of Beal Road. 646 Comment
  RSA698073  Mentzelia involucrata J. R. Bruff 1928-4-2 93 Riverside Whitewater. Comment
  RSA698074  Mentzelia involucrata J. R. Bruff 1930-5-18 s.n. Riverside Shaver s Well. Comment
  RSA698075  Mentzelia involucrata J. R. Bruff 1928-4-2 s.n. Riverside Whitewater-at cork of 29 Palms road. Comment
  RSA701220  Mentzelia involucrata Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11276 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's Chocolate Mountains Aerial Gunnery Range. 570 Comment
  RSA701440  Mentzelia involucrata Steve Boyd, Michael Denslow 2004-3-23 10628 San Bernardino Lavic Mountain, southern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) along powerline/pipeline access road. Comment
  RSA702353  Mentzelia involucrata Steve Boyd, Tammy Morgan 2004-3-30 10696 San Bernardino Southern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) about hill topped with communication towers. 1006 Comment
  RSA704445  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter 2003-3-1 1120 San Bernardino Whipple Mountains: Across Parker Dam Road from Bass Point. Comment
  RSA704446  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter 2003-3-2 1301 San Bernardino Whipple Mountains: Side wash heading NW off Whipple Wash, SW of powerline road. Near 290 Comment
  RSA704447  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter 2003-3-2 1251 San Bernardino WHIPPLE MOUNTAINS: Whipple Wash, upstream from powerline road. 274 Comment
  RSA704448  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter 2003-3-18 1579 San Bernardino Whipple Mountains: Along Havasu Palms road, between Black Meadow Landing road and intersection with powerline road. 335 Comment
  RSA704449  Mentzelia involucrata Sarah J. De Groot, Michael Denslow 2003-3-19 1951 San Bernardino Whipple Mts: West side of range, American Eagle Mine. 565 Comment
  RSA704450  Mentzelia involucrata Sarah J. De Groot, Michael Denslow 2003-3-19 1873 San Bernardino WHIPPLE MOUNTAINS: West side, along East Mojave Heritage Trail, east of Pyramid Butte. 447 Comment
  RSA706088  Mentzelia involucrata Sarah J. De Groot, Angela Gatto 2003-4-20 2552 San Bernardino Whipple Mountains: Washes and rolling hills of upland bajada around bluff northwest of Monument Peak, south side of Copper Basin 421 Comment
  RSA706459  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter, Naomi S. Fraga, L. Machen 2003-5-3 2698 San Bernardino S/SE side along aqueduct road, SW of Bowman s wash. 298 Comment
  RSA708039  Mentzelia involucrata Sarah J. De Groot 2004-4-11 4090 San Bernardino WHIPPLE MOUNTAINS: Along wash NW of divide, upstream of window, from road into BLM Wilderness area from Copper Basin/Bowman's wash. Tributary of Whipple Wash. 549 Comment
  RSA708489  Mentzelia involucrata Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10892 Riverside Eastern Coachella Valley. Bajada beneath Mecca Hills, just east of Coachella Canal. 24 Comment
  RSA709338  Mentzelia involucrata Sarah J. De Groot, Tasha LaDoux 2003-5-20 2930 San Bernardino Whipple Mountains: Hills and wash between War Eagle Mine and summit ridge. 497 Comment
  RSA709593  Mentzelia involucrata Scott D. White, Jennifer H. Jones 2005-4-19 10950 Imperial Fish Creek Mountains. 152 Comment
  RSA709877  Mentzelia involucrata Sarah J. De Groot, Leland Lubinsky, Naomi S. Fraga, Lisa Rojas 2005-2-10 4622 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  RSA709931  Mentzelia involucrata Sarah J. De Groot 2005-2-26 4708 San Bernardino Turtle Mountains: Hillside above drainage, upstream from Mopah Spring. 680 Comment
  RSA716436  Mentzelia involucrata Sarah J. De Groot, Michael Denslow 2003-3-20 2009 San Bernardino Whipple Mts: West side, wide wash along old Needles-Parker road south of D&W mine. 435 Comment
  RSA716437  Mentzelia involucrata Sarah J. De Groot, Michael Denslow 2003-3-20 2086 San Bernardino Whipple Mountains: Road to Twin Lode Mine, off Needles-Parker road, south side of mountains. 347 Comment
  RSA717446  Mentzelia involucrata Scott D. White, Pam DeVries 2006-3-14 11258 Riverside North of the I-10 Freeway a few mi east of Indio, at proposed I-10 / McNaughton Parkway interchange. 91 Comment
  RSA718118  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter, Naomi S. Fraga, Lauren Machen 2003-5-4 2779 San Bernardino Whipple Mts: South side of range, along Colorado River aqueduct W of Chamber's Well road. 285 Comment
  RSA718526  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter, Naomi S. Fraga 2003-5-4 2859 San Bernardino WHIPPLE MOUNTAINS: West slope at north end of Savahia Peak, mid to low elevation. 530 Comment
  RSA719458  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter, Naomi S. Fraga, Lauren Machen 2003-5-3 2722 San Bernardino WHIPPLE MOUNTAINS: South side of range along Colorado River aqueduct. 317 Comment
  RSA720424  Mentzelia involucrata M. B. Dunkle 1933-3-4 3053 Riverside Painted Canyon, Colorado Desert. 30 Comment
  RSA720877  Mentzelia involucrata J. Mark Porter 2001-4-21 12592 San Bernardino Whipple Mountains: Wash along western boundary of BLM Wilderness area, S of D&W mine. Comment
  RSA720929  Mentzelia involucrata J. Mark Porter 2001-4-19 12450 San Bernardino Whipple Mountains: Plains at southern base of mountains. Comment
  RSA727865  Mentzelia involucrata Naomi S. Fraga, Lisa Rojas 2005-2-10 1358 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 365 Comment
  RSA732554  Mentzelia involucrata LeRoy Gross 2008-3-24 2935 San Bernardino Alvord Mountains: Southeast side of mountains along a main canyon just west of Spanish Canyon. Collected around an elevated lake sediment (tufa) east side of canyon, as far as a saddle near 35.07403N, 116.60715W., And a little north along the main canyon, pass where the canyon opens up with a fault line that runs in a northwest angle, near 35.08417N, 116.60613. Main starting point was near end of old road-trail near 35.07616N, 116.60862W. 716 Comment
  RSA732574  Mentzelia involucrata LeRoy Gross, Pamela Conway 2008-3-26 3007 San Bernardino Alvord Mine; Southern portion of the Alvord Mountains. About 6 miles northeast of Manix. 696 Comment
  RSA735395  Mentzelia involucrata Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11219 Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  RSA735742  Mentzelia involucrata LeRoy Gross 2008-4-1 3087 San Bernardino Northwest 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. Near 34.239282N, 115.720544W., General collecting along bajada to west side of mountains, up ridge to 34.23506N, 115.70664W. 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. 715 Comment
  RSA747496  Mentzelia involucrata G. Gust, L. Nye 2005-3-4 485 Imperial Off of Hwy 78 on Black Mountain Rd. ca. 3 miles from Hwy 78 intersection at dry wash approaching Black Mountains. 363 Comment
  RSA747985  Mentzelia involucrata Scott D. White, Justin M. Wood 2009-4-29 12620 Riverside Little San Bernardino Mountains: City of Desert Hot Springs, Proposed development N of Pierson Blvd and E of Verbena Dr. Comment
  RSA748288  Mentzelia involucrata Justin M. Wood 2009-3-26 416 Riverside Coachella Valley: Thousand Palms, Under Edison powerlines, near intersection of 30th Ave and Via Las Palmas. 61 Comment
  RSA748423  Mentzelia involucrata Melvin M. Sweet 2008-5-31 652 San Diego Anza-Borrego Desert State Park, Fish Creek Wash, Fish Creek Jeep Road about 2 miles SW from intersection with Split Mountain Road, 0.5 mi W of Imperial County line. 105 Comment
  RSA749367  Mentzelia involucrata Jim Andre 2009-4-10 10174 San Bernardino Clipper Mountains: southwest end of the Clipper Mountains at the Tom Reed Mine area, at end of dirt road approx 4 miles N of Highway 66. 764 Comment
  RSA750159  Mentzelia involucrata LeRoy Gross 2009-4-6 3768 San Bernardino Southern section of the Cady Mounatins: Northwest of the Sleeping Beauty section. Just north of the transmission line road, east of the low saddle that runs between the mountains., From 34.83717N 116.31488W, [from] near marker BM19 WBC2613 along transmission road to northwest near 34.84049N 116.32047W. 789 Comment
  RSA750541  Mentzelia involucrata Scott D. White, Justin M. Wood, Paul Kielhold 2009-4-21 12591 Riverside San Bernardino Mountains: Ridgeline E of Whitewater Canyon, +/- 2 miles N of town of White Water (Interstate 10), near Super Creek Quarry. 640 Comment
  RSA753284  Mentzelia involucrata Jim Andre, G. L. Clifton 2009-4-4 10475 San Bernardino Turtle Mts.: growing in small wash N side of range, along Turtle Mt. Road approx. 10.9 miles W of Hwy 95. 479 Comment
  RSA754825  Mentzelia involucrata Jim Andre, Jeff Galvin 2009-4-19 10517 San Bernardino Newberry Mts.: Along Troy Rd. (dirt) at Jct. of Kane Wash and large basalt flow. 884 Comment
  RSA757092  Mentzelia involucrata Michael Honer, Kristin Marsh 2008-3-14 2837 San Bernardino Rocky slopes and hills along SW base of Cady Mountains. Appx. 3.8 mi. N of Interstate 40, 3.25 mi. E of Hector Rd. 866 Comment
  RSA758329  Mentzelia involucrata Doug Goldman 2005-3-3 3035 Riverside Box Canyon, along the west side of Box Canyon Road, around 10 miles southwest of the intersection with Interstate 10 and around 0.7 miles southeast of Blake Hill 268 Comment
  RSA760148  Mentzelia involucrata Gregory Pongetti 2005-4-9 25 -May Riverside Box Canyon Wash, 7.5 miles on Box Canyon Road south of I-10. Comment
  RSA764266  Mentzelia involucrata Doris Bowers 1974-5-4 2256 San Diego Colorado Desert, Anza Borrego State Park 335 Comment
  RSA771947  Mentzelia involucrata Robert F. Thorne, C. W. Tilforth 1973-5-30 43583 Riverside Colorado Desert: Mouth of Morongo Valley at N end of Coachella Valley 549 Comment
  RSA774350  Mentzelia involucrata Duncan S. Bell 2011-4-3 2146 San Bernardino The Soda Mountains; collecting in the vicinity of Blue Bell Mine. 840 Comment
  RSA774941  Mentzelia involucrata Duncan S. Bell 2011-5-14 2432 San Bernardino The Silurian Hills; predominant peak/ridgeline northeast of Owl Canyon. 1120 Comment
  RSA776135  Mentzelia involucrata Duncan S. Bell, Amanda Turek 2010-4-10 807 Riverside Riverside Mountains; southern section of the mountain range; approximately 1 air mile southwest of Riverside Mountain Peak. 269 Comment
  RSA776242  Mentzelia involucrata Duncan S. Bell 2010-3-20 597 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  RSA776821  Mentzelia involucrata Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-28 1094 Riverside Chuckwalla Mountains, Corn Springs Road; Road crossing of main wash that drains Chuckwallas to the east toward the Chuckwalla Bench 427 Comment
  RSA777730  Mentzelia involucrata Jim Andre, G. L. Clifton 2011-2-22 17440 Riverside Mecca Hills; along Box Canyon Road, 10.3 miles NE of town of Mecca 219 Comment
  RSA778020  Mentzelia involucrata Jim Andre, Ann Howald 2009-3-17 11108 San Bernardino 2 miles west of Broadwell Dry Lake, 4 miles NNE of Sleeping Beauty Peak. 451 Comment
  RSA778207  Mentzelia involucrata Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-22 801 Riverside Mecca Hills, just south of Shaver's Well. 305 Comment
  RSA778943  Mentzelia involucrata Sarah J. De Groot, Leland Lubinsky, Sean Regalado, Jon Ancona 2011-3-20 6656 San Bernardino Chemehuevi Mountains: Trampas Wash, upstream (west) fork and tank, downstream from Parrish Spring. 599 Comment
  RSA779278  Mentzelia involucrata Sarah J. De Groot, Leland Lubinsky, Sean Regalado, Jon Ancona 2011-3-20 6634 San Bernardino Chemehuevi Mountains: Trampas Wash, just upstream (west) of fork. 524 Comment
  RSA779540  Mentzelia involucrata Sarah J. De Groot, Erin Tripp 2011-5-6 6752 San Bernardino SHEEP HOLE MOUNTAINS, SW Mojave Desert: Near mouth of drainage below west side of saddle east of Sheep Hole Pass. NW side of main ridge of the mountains. 833 Comment
  RSA781602  Mentzelia involucrata Duncan S. Bell 2011-12-30 3030 Riverside Arica Mountains: southern section of the mountain range within the Palen/McCoy Wilderness area; approximately 2 air miles southwest of Priests Well, or approximately 7 air miles southwest of the ghost town of Rice. 365 Comment
  RSA782245  Mentzelia involucrata R. W. Spjut 2008-4-1 16234 Imperial Sonoran Desert. BLM: Palo Verde Mts., along Hwy. 78 491 Comment
  RSA784748  Mentzelia involucrata Duncan S. Bell 2012-2-12 3092 Riverside Mecca Hills: approximately 1.25 air miles north of Box Canyon Road, and approximately 4 air miles southwest of Shavers Well. 256 Comment
  RSA785022  Mentzelia involucrata Duncan S. Bell 2012-3-18 3193 Riverside The Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, approximately 2.8 air miles southwest of Hidden Spring. 20 Comment
  RSA785132  Mentzelia involucrata Jim Andre 2011-3-12 17764 San Bernardino Dead Mountains; south end of range, on north side of RR tracks. 329 Comment
  RSA785476  Mentzelia involucrata Doris Bowers 1966-3-20 121 San Bernardino Calico Dig SBCM 579 Comment
  RSA788942  Mentzelia involucrata David Fraker, Aaron Sedgwick 2012-4-4 67 San Bernardino South of Joshua Tree National Park. North of US10 on power line road .5 mile east of Cottonwood Springs Rd. 522 Comment
  RSA79171  Mentzelia involucrata P. A. Munz, P. Everett 1952-5-2 16263 San Bernardino Dale District, Pinto Mts. 610 Comment
  RSA795393  Mentzelia involucrata Sandra M. Namoff, Diana D. Jolles, Thomas Stoughton, Linda Lee Worlow 2011-3-27 18 San Bernardino Transverse Ranges: Bureau of Land Management, White Water Canyon, west side of Canyon Rd. Drive, near Painted Hill. 554 Comment
  RSA795936  Mentzelia involucrata Duncan S. Bell 2009-4-19 260 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  RSA796270  Mentzelia involucrata Jim Andre, Tasha La Doux, R. B. Kelley 2011-5-4 21073 Riverside Joshua Tree National Park; Long Canyon, up side canyon approx. 400 m. west of main canyon drainage. 1172 Comment
  SBBG111911  Mentzelia involucrata D. Silverman with E. Schafhauser 1998-4-2 San Bernardino Whipple Wash cyn, on ridge SE of cyn, E Whipple Mtns, MWD powerline access rd at second tower pad access SE of wash 275 Comment
  SBBG16941  Mentzelia involucrata K. K. Muller 1957-4-13 800 Riverside hills opposite S entrance of Joshua Tree Nat Monument Comment
  SBBG20039  Mentzelia involucrata D. Myrick 1964-3-26 788 Riverside 15 mi S of Twentynine Palms, Joshua Tree Nat Monument 762 Comment
  SBBG21097  Mentzelia involucrata E. C. Twisselmann 1964-5-6 9310 Kern Jawbone Cyn at the aqueduct 762 Comment
  SBBG24103  Mentzelia involucrata A. I. Richardson 1966-3-28 Riverside above Desert Highland Hot Springs Comment
  SBBG25136  Mentzelia involucrata D. Myrick 1966-4-2 1332 Riverside upper end of Aqueduct Rd, SE of Desert Hot Springs Comment
  SBBG25152  Mentzelia involucrata Leota Davidson 1966-4-3 238 Riverside between Indio and Chiriaco Summit at rest area, E side Interstate 10 Comment
  SBBG26163  Mentzelia involucrata E. C. Twisselmann 1966-4-26 12029 Kern NW flank of Government Pk, Rand Mtns 1280 Comment
  SBBG28080  Mentzelia involucrata D. Myrick 1964-4-30 831 Riverside Pines to Palms Hwy 74, 12 mi W of Palm Desert 1066 Comment
  SBBG29592  Mentzelia involucrata R. J. Young 1968-4-20 189 Riverside ca. 4 mi S of Cottonwood Jct, Joshua Tree Nat Monument Comment
  SBBG4861  Mentzelia involucrata H. and M. Dearing 1935-4-22 1098 Inyo rd to Panamint City Comment
  SBBG4862  Mentzelia involucrata H. and M. Dearing 1937-4-10 1099 Riverside NE of Indio Comment
  SBBG69259  Mentzelia involucrata L. Rowntree 1930-4-12 Riverside Morongo Cyn Comment
  SBBG69260  Mentzelia involucrata Mark Kerr 1939-5-5 Kern Red Rock Cyn Comment
  SBBG69262  Mentzelia involucrata R. Hoffmann 1931-10-1 Kern Red Rock Cyn Comment
  SBBG69263  Mentzelia involucrata R. Hoffmann 1930-5-17 San Bernardino 7 mi S of Fenner Comment
  SBBG81633  Mentzelia involucrata S. A. Junak 1983-3-23 1637 Riverside E side of Jefferson Rd, across from entrance to Cahuilla Lake County Park 3 Comment
  SBBG81726  Mentzelia involucrata S. A. Junak 1983-3-23 1647 Riverside Berdoo Cyn Rd, 2.4 mi E of Dillon Rd, Little San Bernardino Mtns 411 Comment
  SBBG97173  Mentzelia involucrata W. L. Halvorson 1977-2-5 77 -11 Riverside bajada, near jct of I-10 and rd to Joshua Tree Nat Monument Comment
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Jun 4 2012
  SBBG97174  Mentzelia involucrata W. L. Halvorson 1977-3-8 77 -94 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SBBG99187  Mentzelia involucrata W. L. Halvorson 1977-2-5 77 -11 Riverside bajada, near jct of I-10 and rd to Joshua Tree Nat Monument Comment
  SBBG99189  Mentzelia involucrata W. L. Halvorson 1977-3-8 77 -94 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  SD103945  Mentzelia involucrata J. L. S. Simpson 1968-3-19 Riverside Graham Pass Comment
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Aug 28 2016
  SD103958  Mentzelia involucrata J. L. S. Simpson 1968-3-19 Riverside Graham Pass, Little Chuchawalla Mountains. Comment
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Aug 28 2016
  SD10451  Mentzelia involucrata Frank F. Gander 1935-3-6 134 1 San Diego along Coyote Creek about 3 miles southeast of Lone Palm north end of Borrego Valley Comment
  SD112091  Mentzelia involucrata Linda Allen 1977-2-28 Imperial Davies Wash, along road leading to Davies canyon. Comment
  SD114165  Mentzelia involucrata D. F. Howe 1949-3-21 1940 Riverside 16 miles east of Mecca on Highway. 518 Comment
  SD114168  Mentzelia involucrata Darley F. Howe 1964-2-23 3726 San Diego 5.9 miles west of San Diego-Imperial County line on road to Caliente Hot Springs Comment
  SD119064 Image available Mentzelia involucrata Duffie Clemons, Erik Jonsson 1986-3-9 1342 San Diego Occasional at edges of dry Arroyo Seco del Diablo Carrizo Badlands. Comment
  SD121062  Mentzelia involucrata Michael Curto 1986-3-23 226 San Diego on rocky ridge just south of entrance to Palo Verde Canyon north of S-22, Santa Rosa State Wilderness Comment
  SD143865  Mentzelia involucrata G. K. Helmkamp, E. A. Helmkamp 1998-3-18 2893 Imperial 4.7 miles N of Winterhaven on Picacho Road and 1 mile NW of the All-American Canal. Unnamed wash. 75 Comment
  SD144576  Mentzelia involucrata Suzanne Bell 1998-3-1 305 Imperial Roadside and in washes on road to Ferguson Lake Comment
  SD144869  Mentzelia involucrata Jon P. Rebman, A. Salywon & C. Christy 1998-3-23 4952 Imperial West of Picacho State Recreation Area, along Indian Pass Road, ca. 9.1 miles east of Ogilby Road. 149 Comment
  SD161391  Mentzelia involucrata Jon Rebman, Jim Rocks 2005-2-10 10950 Imperial Little Picacho Wilderness Area (BLM property): North of Winterhaven, SW of Colorado River; approx. 18 miles N of S24 on Picacho Road; just south of the Picacho State Recreation Area 195 Comment
  SD16716  Mentzelia involucrata Frank F. Gander 1937-4-6 3171 San Diego extreme northeast corner of San Diego County Comment
  SD173113  Mentzelia involucrata Larry Hendrickson, L. Louise Jee 2005-4-22 2087 Imperial Trust for Public Lands Option Properties. Big Wash, approx. 4.6 air miles west of hwy. 86 and 3.0 air miles north of hwy. S-22 (Borrego-Salton Seaway). 124 Comment
  SD173879  Mentzelia involucrata Larry Hendrickson, L. Louise Jee 2005-4-27 572 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. 167 Comment
  SD176683  Mentzelia involucrata Joe Barth, J. Gregory, L. Hendrickson, M. Mulligan, K. Rich 2005-3-30 387 San Diego Anza-Borrego Desert State Park: north of the Volcanic Hills in Jojoba Wash about .1 mile west of Hwy S2 (in NNW part of square). 366 Comment
  SD181458  Mentzelia involucrata LeRoy Gross, V Arvizu, S DeGroot, L Rojas, T Thibault 2004-5-13 1273 Imperial Chocolate Mountains (Chocolate Mountain Aerial Gunnery Range), north of Lion Head Mountain, near Beal Well. Surrounding desert off Beal Road. Growing on soil in flat valley. 399 Comment
  SD184385  Mentzelia involucrata Jon P. Rebman, Margie Mulligan 2008-3-12 14245 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 160 Comment
  SD185768  Mentzelia involucrata Jeannie Gregory, John Gregory 2005-4-3 1374 San Diego Anza-Borrego Desert State Park at Eastern base of Jacumba Mtns; Mortero Canyon Rd; 8 mi W of Ocotillo; near Dos Cabezas Mine 582 Comment
  SD190650  Mentzelia involucrata Larry Hendrickson, Jon Rebman, et al. 2005-4-16 3183 Imperial Picacho State Recreation Area, south side of Colorado River, and north of main access road. 63 Comment
  SD191942  Mentzelia involucrata Jon Rebman, W. Schmidtmann, L. Hendrickson, & L. L. Jee 2008-4-8 14411 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, 5.6 miles W of Hwy. 86; Section 18 (SL18), Grave Wash, Site OLILIN in arroyo bottom and surrounding embankments 71 Comment
  SD191943  Mentzelia involucrata Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-9 14451 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 9 (SP9), in Grave Wash, Site ENCFRU in arroyo bottom and surrounding embankments 0 Comment
  SD191944  Mentzelia involucrata Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-9 14486 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 10 (SL10), in Grave Wash, Site LARTRI in arroyo bottom and surrounding embankments -31 Comment
  SD191945  Mentzelia involucrata Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-10 14527 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 61 Comment
  SD191946  Mentzelia involucrata Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-10 14580 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 53 Comment
  SD193878  Mentzelia involucrata CRES Native Seed Gene Bank, J Dunn, S Anderson 2005-3-22 56 San Diego Anza-Borrego Desert State Park, 1.4 mi SW of junction of Hwy 78 and Yaqui Pass rd (S3) at Lizard Canyon, NW of Chuckwalla Wash 622 Comment
  SD200055  Mentzelia involucrata Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-23 16507 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 152 Comment
  SD200056  Mentzelia involucrata Jon Rebman, G. Fleming, W. Schmidtmann, & G. Erbeck 2009-3-9 16177 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 45 Comment
  SD200057  Mentzelia involucrata Jon Rebman, G. Fleming, W. Schmidtmann, & G. Erbeck 2009-3-10 16205 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 19 (SP19), vicinity of Palm Wash, Site ASTCRO in sandy arroyo bottom and surrounding rocky, mud embankments 54 Comment
  SD200058  Mentzelia involucrata Jon Rebman, G. Fleming and W. Schmidtmann 2009-3-12 16479 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 99 Comment
  SD200059  Mentzelia involucrata Jon Rebman, G. Fleming and W. Schmidtmann 2009-3-11 16339 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 39 Comment
  SD200060  Mentzelia involucrata Jon Rebman, G. Fleming and W. Schmidtmann 2009-3-11 16400 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 -4 Comment
  SD200446  Mentzelia involucrata Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-26 16766 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 4 Comment
  SD200447  Mentzelia involucrata Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-26 16788 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 14 (SL14), NW of Tetherball Hill in Coral Wash, Site AMBSAL in dried mud and sand arroyo and surrounding hillsides 6 Comment
  SD200448  Mentzelia involucrata Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-23 16577 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 -3 Comment
  SD205954  Mentzelia involucrata Melvin M. Sweet 2008-5-31 652 San Diego Anza-Borrego Desert State Park, Fish Creek Wash, Fish Creek Jeep Road about 2 miles SW from intersection with Split Mountain Road, 0.5 mi W of Imperial County line. 105 Comment
  SD205955  Mentzelia involucrata Jeannie Gregory, John Gregory 2008-3-7 2663 San Diego Anza-Borrego Desert State Park, Canyon Sin Nombre, 1 mi E of junction with Hwy S2, 11.7 mi NW of junction S2 and Interstate 8 at the town of Ocotillo. 284 Comment
  SD205956  Mentzelia involucrata Bill Sullivan, Tom Chester, Wayne P. Armstrong 2008-3-6 379 San Diego Northeast corner of San Diego County and Anza-Borrego Desert State Park, about .6 miles south of Riverside County line and about .25 miles west of the Imperial County line 7 Comment
  SD205957  Mentzelia involucrata Thomas E. Barckley, Lucia Barckley 2008-3-9 28 San Diego North East portion of Anza-Borrego State Park, 9 mi West North West of Salton City. 5.6 mls West of State Route 86 in Wonderstone Wash. 366 Comment
  SD212286  Mentzelia involucrata Kim Marsden, L. Hendrickson, J.& R. Riolo, P. Larson, R. Ehly 2008-3-20 368 San Diego Anza-Borrego Desert State Park, mouth of Glorietta Canyon, Yaqui Meadows, about 1.5 miles south of Borrego Springs Road on jeep trail 358 Comment
  SD212287  Mentzelia involucrata Mary Jo Churchwell 2009-3-11 165 San Diego Anza-Borrego Desert State Park; Hellhole Canyon; at mile marker #17 of Hwy S-22, 1.0 mi up Hellhole Canyon trail, about 3.0 mi WSW of Christmas Circle. 305 Comment
  SD212288  Mentzelia involucrata Mary Jo Churchwell 2009-3-25 175 San Diego Anza-Borrego Desert State Park; Little Surprise Canyon; S of parking lot of Hellhole Canyon trailhead at mile marker #.17 of Highway S-22, 2.0 miles WSW of Christmas Circle 305 Comment
  SD212289  Mentzelia involucrata Kim Marsden, L. L. Jee, L. Hendrickson, ABDSP Botany Group 2008-3-20 387 San Diego Anza-Borrego Desert State Park, mouth of Glorietta Canyon, Yaqui Meadows, about 1.5 miles south of Borrego Springs Road on jeep trail 358 Comment
  SD214426  Mentzelia involucrata Larry Hendrickson 2009-3-1 3369 San Diego Anza-Borrego Desert State Park. Carrizo Wash, 0.5 mile SW of intersection of access road and County Road S-2 and 0.5 mile S of Egg Mountain. 725 Comment
  SD214427  Mentzelia involucrata Larry Hendrickson, Tom Beltran 2009-4-4 3685 San Diego Borrego Springs. Yaqui Meadows, Tom and Rose Beltran property. 2.2 miles SSE of intersection of County Road S-3 (Borrego Springs Rd.) and Anzio Drive, and 3.7 air miles NE of intersection of S-3 and State hwy. 78. 320 Comment
  SD214428  Mentzelia involucrata Larry Hendrickson 2009-3-8 3401 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 ft. W of signed cul-du-sac north side County Rd. S-2 392 Comment
  SD215119  Mentzelia involucrata Melvin M. Sweet 2009-3-22 771 B San Diego Anza Borrego Desert State Park, Glorietta Canyon; from Christmas Circle in Borrego Springs take Borrego Springs Rd 3.5 miles south, turn right on dirt road, taking it 3 miles to its end. 458 Comment
  SD21517  Mentzelia involucrata Frank F. Gander 1938-5-21 5760 Riverside Shaver's Summit Comment
  SD216228  Mentzelia involucrata Larry Hendrickson, Mike Bigelow, Mac McNair, Mary Jo Churchwell 2009-4-30 3794 San Diego Anza-Borrego Desert State Park. Borrego Badlands, Hills of the Moon. 9.1 air miles ESE of Borrego Springs (Christmas Circle) and 1.7 miles SE of FontAs Point. near unpaved road between Rainbow Wash and Hills of the Moon Wash. 145 Comment
  SD219917  Mentzelia involucrata Larry Hendrickson 2010-3-31 4591 San Diego Anza-Borrego Desert State Park. Tierra Blanca Mountains. Indian Gorge, 0.9 mile SE of County Road S-2 and access road to gorge, and 0.8 mile ENE entrance to Torote Canyon. 288 Comment
  SD219918  Mentzelia involucrata Larry Hendrickson, Bonnie Bruce 2010-5-12 4779 San Diego Anza-Borrego Desert State Park. Cactus Garden, E-side of Vallecito Mountains. 2.3 air miles SSE of intersection of State hwy. 78 and Borrego Springs Rd., and 0.8 mile south of intersection of Old Kane Spring Rd. and jeep trail to Harper Canyon. 285 Comment
  SD220400  Mentzelia involucrata Bill Sullivan 2009-4-1 650 San Diego Anza-Borrego Desert State Park, Arroyo Salado Wash/Truckhaven Trail, 1.2 mi SE of intersection with Borrego-Salton Seaway (County Road S22) 213 Comment
  SD225012  Mentzelia involucrata G. K. Helmkamp, E. A. Helmkamp 1998-2-5 2672 Riverside Little San Bernardino Mtns, 3.2 mi N of jct of Thousand Palms Canyon Rd & Dillon Rd. 456 Comment
  SD241093  Mentzelia involucrata Dave Silverman 2010-3-30 7890 Riverside Southern McCoy Mountains, east bajada flank, 1.8 km west of Black Creek Road, 4.4 km north of I-10 and 7.0 km ENE of McCoy Pk. 174 Comment
  SD242866  Mentzelia involucrata Andrea Laltoo 2005-3-26 35 Imperial Yuha Desert Area of Critical Environmental Concern, wash running N-S through DeAnza campgound, E of route 274 131 Comment
  SD243936  Mentzelia involucrata Donald Hazlett 1993-3-13 6803 Imperial 3 mi. S of Ocotillo, in Davies Canyon 182 Comment
  SD24483  Mentzelia involucrata Frank F. Gander 1939-4-1 7059 San Diego about 2 miles southwest of Carrizo Station Comment
  SD260066  Mentzelia involucrata J. Andre 2012-4-11 20787 Riverside Joshua Tree National Park; NW Eagle Mtns, along dirt road to Black Eagle Mine, 0.7 mi. east of road to Cottonwood Spr (Utah Train), 34 mi. south of Hwy 62 at 29 Palms. Interface of steep rocky hills and large wash. 729 Comment
  SD260267  Mentzelia involucrata A. C. Sanders, Jim Malusa, M. Baker, M. Cloud-Hughes 2016-3-3 42007 Imperial Sonoran (Colorado) Desert: Chocolate Mountains, Mammoth Wash area, along dirt road to Hayden Well from Ted Kipf Rd. (Tortuga 7.5'Q) 200 Comment
  SD260268  Mentzelia involucrata A. C. Sanders, Jim Malusa 2016-3-18 42377 Imperial Sonoran (Colorado) Desert: Chocolate Mountains, along gasline road 21.5 km due north of Slab City/Camp Dunlap (Iris Pass 7.5'Q) 537 Comment
  SD260269  Mentzelia involucrata A. C. Sanders, Jim Malusa, Marc A. Baker, Michelle Cloud-Hughes 2016-3-15 42193 Imperial Sonoran (Colorado) Desert: Chocolate Mountains, c. 0.8 km NE of Beal Well and c. 0.4 km east of old Niland-Blythe Rd. (Lion Head Mountain 7.5'Q) 427 Comment
  SD27706  Mentzelia involucrata Allan Keller 1940-3-16 207 Imperial Wash on road to Painted Gorge. Comment
  SD29285  Mentzelia involucrata Mary Beal 1939-3-25 755 San Bernardino Mojave Desert; Bagdad-Chase Mine (Bullion Mts.) Comment
  SD3176  Mentzelia involucrata Mary S. Snyder 1898-3-25 San Diego below Borrego Spring Comment
  SD48530  Mentzelia involucrata E. K. Balls, P. C. Everett 1958-3-20 22921 Imperial Ogilby 152 Comment
  SD6092  Mentzelia involucrata unknown 1916-4-23 Imperial near Mountain Springs Comment
  SD63829  Mentzelia involucrata D. F. Howe 1966-4-5 San Bernardino Sheephole Mountains. 762 Comment
  SD73511  Mentzelia involucrata Helen V. Witham 1970-3-1 711 a Imperial Pinto Wash 160 Comment
  SD73513  Mentzelia involucrata Helen V> Witham 1970-3-1 Imperial Davies Valley. 199 Comment
  SD83462  Mentzelia involucrata R. Mitchel Beauchamp, R. C. Pierce 1971-3-26 1977 San Diego Butler Canyon, Anza-Borrego Desert State Park Comment
  SDSU18655  Mentzelia involucrata Michael G. Simpson, Kristen Hasenstab 2008-4-2 2945 Riverside Joshua Tree National Park. Wash just southwest of road to Cottonwood Spring, ca. 0.4 mile northwest of Cottonwood Spring. 922 Comment
  SDSU8027  Mentzelia involucrata Robin M. Garcia 1987-3-21 Imperial Junction of Interstate 8 and Mountain Springs Road, ca. 0.75 mil. E of Old Highway 80. Comment
  SDSU8049  Mentzelia involucrata F. Youngberg 1933-3-11 San Diego Borrego Valley Comment
  SDSU8055  Mentzelia involucrata Harvey 1938-4-15 2094 San Diego Borrego Comment
  SDSU8061  Mentzelia involucrata K. R. Morgan 1962-4-21 DAP 1430 K9 San Diego Anza-Borrego Desert State Park: Yaqui Bajada, Borrego Valley Comment
  SDSU8067  Mentzelia involucrata Robert B. Sargeant 1966-3-27 San Diego Panormic Point, south of Borrego-Palm Canyon campground, Anza-Borrego Desert State Park. Comment
  SDSU8086  Mentzelia involucrata H. Wedberg 1966-3-26 1172 Imperial On the road from Vallecito Valley to Hwy 80 and Ocotillo, 0.1 mi. S of San Diego County. 274 Comment
  SDSU8092  Mentzelia involucrata Darren S. Smith 1992-4-5 Riverside 480 Comment
  SEINET10389855  Mentzelia involucrata A. C. Sanders, Jim Malusa, M. Baker, M. Cloud-Hughes 2016-3-3 42007 Imperial Chocolate Mountains, Mammoth Wash area, along dirt road to Hayden Well from Ted Kipf Rd. 201 Comment
  SEINET10480638  Mentzelia involucrata Chris Dietrich, Mary Merello; Heidi H. Schmidt 1994-4-12 Dietrich 23 Riverside 9 miles north-northwest of Indio, off Dillon Road 1.9 miles northeast on Berdoo Canyon Road (J241). BLM land. Desert Access Guide Map #17. Along gravelly wash in creosote bush scrub. 380 Comment
  SEINET10625863  Mentzelia involucrata Greg Gust, Leith Nye 2005-3-4 Gust 485 Imperial Off of Hwy 78 on Black Mountain Rd. ca. 3 mi. from HWY 78 intersection at dry wash approaching Black Mountains. 363 Comment
  SEINET178064  Mentzelia involucrata Marcus E. Jones 1884-5-8 3855 a Tulare The Needles Comment
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Mar 17 2014
  SEINET180462  Mentzelia involucrata P. A. Munz 1935-4-7 13789 San Bernardino 6 miles north of 29 Palms, Southern Mohave Desert. 914 Comment
  SEINET185935  Mentzelia involucrata Philip A. Munz 1940-3-22 15662 Riverside Whitewater Canyon 2 miles north of Indio-Banning Highway Comment
  SEINET186303  Mentzelia involucrata Philip A. Munz 1940-3-24 15694 Riverside 3 miles southof Cottonwood Springs, Eagle Mts., 457 Comment
  SEINET1909688  Mentzelia involucrata Sarah J. De Groot, Tasha LaDoux 2003-1 2930 San Bernardino Whipple Mountains: Hills and wash between War Eagle Mine and summit ridge. 497 Comment
  SEINET1909765  Mentzelia involucrata Sarah J. De Groot, Michael Denslow 2003-1 2086 San Bernardino Whipple Mountains: Road to Twin Lode Mine, off Needles-Parker road, south side of mountains. Comment
  SEINET1909766  Mentzelia involucrata Sarah J. De Groot, Michael Denslow 2003-1 1873 San Bernardino Whipple Mountains: West side, along East Mojave Heritage Trail, east of Pyramid Butte. 447 Comment
  SEINET1910608  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-1 2698 San Bernardino Whipple Mountain: S/SE side along aqueduct road, SW of Bowman's wash. 298 Comment
  SEINET192011  Mentzelia involucrata C. L. Hitchcock 1940-3-29 5855 Riverside Cottonwood Canyon, ca 100 yards east of Spring. Comment
  SEINET1956169  Mentzelia involucrata Marc A. Baker, Michelle Cloud-Hughes 2010-5-7 17085 San Bernardino Cady Mountains, 57km east of Barstow, 9km north of Pisgah Crater 768 Comment
  SEINET198458  Mentzelia involucrata Mary Beal 1940-3-25 755 San Bernardino Mojave Desert, Bagdad-Chase Mine, Bullion Mountians Comment
  SEINET204347  Mentzelia involucrata Unknown 1962-3-20 8315 Imperial At mouth of Picacho Wash, along Picacho road, 5 miles north of its junction with old U. S. Highway 80 (just northwest of Yuma, Ariz.) and 0.2 miles north of the All Americah Canal. 61 Comment
  SEINET206294  Mentzelia involucrata Unknown 1958-2-17 6148 Imperial Just west of and above summit of road (Ogilby-Blythe road) over Palo Verde Mountains; 244 Comment
  SEINET212863  Mentzelia involucrata Unknown 1973-3-24 Imperial Palo Verde Valley, 5 airline miles south of Palo Verde. 76 Comment
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Nov 20 2013
  SEINET221030  Mentzelia involucrata Unknown 1978-5-8 51142 San Bernardino Mojave desert, Granite Mts: Bull Canyon and wash, NNW side of Granite Mts., S of Kelson Danes, 762 Comment
  SEINET225785  Mentzelia involucrata George K. Helmkamp 1983-4-5 483 -24 Riverside Chuckwalla Mountains, Large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road. 488 Comment
  SEINET255651  Mentzelia involucrata A. C. Sanders 1983-4-23 3790 San Bernardino Whipple Mountains, rocky ridge above and east of Whipple Wash along the powerline road. 305 Comment
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Nov 28 2018
  SEINET3004589  Mentzelia involucrata G. Rink 2010-5-2 9233 San Bernardino Twenty-Nine Palms, Wilshire Blvd., south of Hwy. 69 701 Comment
  SEINET3004655  Mentzelia involucrata G. Rink 2010-5-12 9299 San Bernardino Mojave Desert, east of Barstow, base of the Cady Mtns 792 Comment
  SEINET3004996  Mentzelia involucrata G. Rink 2011-4-4 10424 Riverside Northwest of Blythe, east of the McCoy Mtns, desert pavement 182 Comment
  SEINET3005067  Mentzelia involucrata G. Rink 2011-5-1 10505 Riverside North side of the Chuckawalla Mountains near Chuckawalla Spring 505 Comment
  SEINET3026620 Image available Mentzelia involucrata A. C. Sanders, Fred M. Roberts, Katy Beck, Eve Laeger, et al. 2009-1 36643 San Bernardino Mojave Desert: Cady Mountains, along the powerline route in the pass between Pisgah and Broadwell valleys (Sleeping Beauty 7.5'Q). 793 Comment
  SEINET3094591 Image available Mentzelia involucrata Norman C. Cooper 1949-4-8 3249 Riverside Mecca Pass E of Indio. 457 Comment
  SEINET3094595 Image available Mentzelia involucrata Norman C. Cooper 1949-3-16 3046 Imperial West of Yuma 243 Comment
  SEINET3094616 Image available Mentzelia involucrata John Anthony Adams 1966-3-17 479 San Diego Sonoran (Colorado) Desert; Anza-Borrego State Park, 2 miles SW of Borrego Springs on road to Hwy 79. 152 Comment
  SEINET3094632 Image available Mentzelia involucrata Barbara Gayle Pitzer 1998-2-1 3445 Riverside Sonoran (Colorado) Desert; Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  SEINET3197425  Mentzelia involucrata Marc A. Baker, with Michelle Cloud-Hughes 2010-5-7 17085 San Bernardino Cady Mountains, 57km east of Barstow, 9km north of Pisgah Crater 768 Comment
  SEINET3197462  Mentzelia involucrata Marc A. Baker, John Messina 2010-4-11 17035 San Bernardino Cady Mountains, 58km east of Barstow, 18km west of Broadwell Lake, angular rhyolitic rocks and outcroppings 750 Comment
  SEINET3263235  Mentzelia involucrata J. Andre, T. La Doux, R. B. Kelley 2012-5-4 21073 Riverside Joshua Tree National Park; Long Canyon, up side canyon approx 400 m west of main canyon drainage. Yucca Valley South Quad. Comment
  SEINET3350022  Mentzelia involucrata Stephen Hale 2012-1 4820 Riverside Black Point Mesa, Big Maria Mts., 0.25 mi. W SR 95, 15 Mi. N Blythe 197 Comment
  SEINET4391058 Image available Mentzelia involucrata Sarah J. De Groot 2005-2-26 4708 San Bernardino Turtle Mountain: Hillside above drainage, upstream from Mopah Spring. 680 Comment
  SEINET5575263  Mentzelia involucrata Steven P. McLaughlin 1998-1 7384 Imperial Picacho Wash, adjacent to road to Picacho State Rec. Area, with Olneya tesota, Larrea divaricata, Lycium andersonii. 150 Comment
  SEINET5584876  Mentzelia involucrata Stephen Hale 2011-1 San Bernardino Along Parker-Blythe transmission line, Eureka Wash Basin, Whipple Mountains, Ca. 2 miles southwest Parker Dam. 189 Comment
  SEINET8001721  Mentzelia involucrata Jon P. Rebman 1998-3-23 4952 Imperial Picacho State, W of Picacho State Recreation Area 150 Comment
  SEINET8712362  Mentzelia involucrata N. H. Holmgren, P. K. Holmgren 1974-3-27 7503 Imperial Jacumba Mountains, 3 airline miles SW of Ocotillo. 274 Comment
  SEINET958613  Mentzelia involucrata Sarah J. De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-1 2779 San Bernardino Whipple Mountains, South side of range, along Colorado River aqueduct W of Chamber's Well road. 285 Comment
  SFV7977  Mentzelia involucrata T. Gordon, K. A. Wilson, M. H. Grayum, G. Poseley 1976-5-1 1342 San Bernardino Mojave Desert Old Woman Mountains near Copper King Mine in eastern Mojave Desert. 915 Comment
  SJSU10949  Mentzelia involucrata R. C. McGehee 1970-4-16 217 Imperial junction Wileys Well-Nyland rd & E boundary Chocolate Mt Aerial Gunnery Range 609 Comment
  SJSU4797  Mentzelia involucrata H. T. Harvey & C. L. Schmidt 1966-4-1 426 Inyo Goler Wash, W slope Panamint Range c. 9 mi S of Ballarat 762 Comment
  SJSU4806  Mentzelia involucrata H. T. Harvey & C. L. Schmidt 1966-4-1 412 Kern Last Chance Canyon, El Paso Mts Comment
  SJSU5190  Mentzelia involucrata S. M. Kaune 1962-12-19 683 Unknown off Hwy 5 c. 10 mi NW of San Felipe 304 Comment
  SJSU7055  Mentzelia involucrata R. E. Palmer 1973-1-21 237 Unknown c. 35 mi N of Puertecitos Comment
  UC1004771  Mentzelia involucrata E. C. Jaeger 1939-12-29 Riverside 5 m e Indio (Eytel Canyon branching from Fargo Canyon) 243 Comment
  UC1005083  Mentzelia involucrata Philip A. Munz 1940-1-28 15779 San Diego Southern California, Old Carrizo Station Comment
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May 2 2014
  UC1007184  Mentzelia involucrata Philip A. Munz 1940-3-24 15694 Riverside 3 mi s Cottonwood Springs; Eagle Mts. 457 Comment
  UC1007198  Mentzelia involucrata Philip A. Munz 1940-3-22 15662 Riverside 2 m n Indio (Banning highway); White Water Canyon Comment
  UC1080451  Mentzelia involucrata P. C. Everett and E. K. Balls 1958-4-29 23009 Riverside 6.5 mi e U.S. Hwy. 99 (U.S. Hwy. 60/70, Indio to Blythe.) 243 Comment
  UC108382  Mentzelia involucrata T. S. Brandegee 1895-4-17 San Diego Borregos Springs Comment
  UC108383  Mentzelia involucrata T. S. Brandegee 1895-4-18 San Diego Palm Creek Comment
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Mar 5 2011
  UC1224767  Mentzelia involucrata R. F. Hoover 1958-4-19 8454 Kern s Jawbone Canyon (west edge of Mohave Desert) Comment
  UC1286997  Mentzelia involucrata C. L. Hitchcock 1966-3-16 24211 Riverside 4 mi s Palm Desert (along palms to Pines Hiway) 609 Comment
  UC1292622  Mentzelia involucrata C. L. Hitchcock and C. V. Muhlick 1964-3-20 23192 Imperial 7 m n of junction with Highway 80 (along state highway S2.) Comment
  UC129555  Mentzelia involucrata H. M. Hall and H. P. Chandler 1906-5-1 6823 San Bernardino near Kane Springs (Ord Mts.); Mohave Desert Comment
  UC1329909  Mentzelia involucrata James E. Cole 1941-4-12 531 San Bernardino Indian Cove, Feldspar Point Comment
  UC1546719  Mentzelia involucrata Barry A. Prigge 1988-2-21 7847 Riverside 2 mi w Clemens Well; Colorado Desert, Orocopia Mountains 228 Comment
  UC1552159  Mentzelia involucrata David Charlton 1988-4-2 1702 Kern n Mojave (s of Red Rock Cyn. State Park on hwy 14. At the end of the dirt road in Alpine cyn (n. side of Rd.) where Jawbone Cyn Rd becomes dirt.); Jawbone Canyon 762 Comment
  UC1595592  Mentzelia involucrata Steve Boyd, Laurel Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4567 Riverside above ne end of lake (Vail Lake area, steep se flank of Oak Mtn.); Vail Lake area; NE1/4, SW1/4 548 Comment
  UC1595705  Mentzelia involucrata W. Wisura, J. Dolan, M. Wall 1992-3-24 4624 Riverside 7.7 mi ne Mecca (on Box Canyon Rd.) Comment
  UC167084  Mentzelia involucrata S. B. Parish 190 Unknown Souther California, Colorado Desert Comment
  UC1922269  Mentzelia involucrata Scott D. White, Jennifer H. Jones 2005-4-19 10950 Imperial Sonoran Desert: Fish Creek Mountains. Comment
  UC1922408  Mentzelia involucrata Naomi Fraga, Lisa Rojas 2005-2-10 1358 Riverside Colorado Desert; Northeastern Colorado Desert region; Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 365 Comment
  UC1922495  Mentzelia involucrata Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10892 Riverside Sonoran Desert: Eastern Coachella Valley. Bajada beneath Mecca Hills, just east of Coachella Canal. Comment
  UC192390  Mentzelia involucrata J. G. Lemmon April 1876 10 Riverside Colorado Desert, Whitewater River Comment
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Jan 15 2010
  UC1929704  Mentzelia involucrata Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10503 Riverside Peninsular Ranges, San Jacinto Mountains / Colorado Desert; West side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains Comment
  UC19595  Mentzelia involucrata C. A. Purpus 1898-5 San Diego San Felipe Comment
  UC196003  Mentzelia involucrata Joseph Grinnell 1910-3-18 Riverside Riverside Mt., Colorado River Comment
  UC217974  Mentzelia involucrata P. A. Munz, D. Keck 1922-4-13 4940 Riverside Colorado Desert, Eagle Mtns. 243 Comment
  UC303580  Mentzelia involucrata H. M. Hall 1905-5-1 6133 San Bernardino Mojave Desert, Newberry Comment
  UC310584  Mentzelia involucrata Philip A. Munz 1926-1-31 9951 Riverside Colorado Desert, Dos Palmas Spring Comment
  UC311294  Mentzelia involucrata Philip A. Munz 1926-1-1 10819 Riverside Thousand Palms Comment
  UC569026  Mentzelia involucrata P. A. Munz 1935-4-8 13826 San Bernardino Mohave Desert, Sheephole Mts. 1066 Comment
  UC605011  Mentzelia involucrata Roxana S. Ferris and Ruth P. Rosebach 1938-5-17 9613 Imperial upper end of Painted Gorge Carisso Mts. Comment
  UC626075  Mentzelia involucrata Annie M. Alexander 1939-5-6 391 b San Bernardino Northwest side Coopper Basin L. Whipple Mts. 304 Comment
  UC667279  Mentzelia involucrata Annie M. Alexander and Louise Kellogg 1941-5-26 2237 Riverside Eagle Mountains, Monsen Canyon 914 Comment
  UC667421  Mentzelia involucrata Annie M. Alexander 1940-3-30 1278 San Bernardino Whipple Mt. Comment
  UC669261  Mentzelia involucrata Annie M. Alexander and Louise Kellogg 1941-3-16 1947 Imperial 23 m n Ogilby (south-facing rocky wall of wash from lava hills); Colorado Desert 323 Comment
  UC669262  Mentzelia involucrata Annie M. Alexander and Louise Kellogg 1941-3-9 1918 Imperial 22 mi n Ogilby 365 Comment
  UC672659  Mentzelia involucrata H. L. Mason 1928-3-10 4192 Riverside White Water River Comment
  UC672667  Mentzelia involucrata Margaret Stason 1927-2-12 1000 Riverside Colorado Desert,Palm Canyon Comment
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Nov 12 2011
  UC68736  Mentzelia involucrata H. M. Hall Apr. 1905 5803 Riverside 10 m w Coachella; Colorado Deseret 91 Comment
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Sep 11 2011
  UC68744 Image available Mentzelia involucrata H. M. Hall 1905-4-21 5839 Riverside near Salton; Colorado Desert; near Salton, Colorado Desert, Riverside Co. -76 Comment
  UC724202  Mentzelia involucrata Aven and Ruth Nelson 1939-3-29 3331 Riverside Hidden Springs Comment
  UC809708  Mentzelia involucrata E. K. Balls 1949-4-2 12896 Riverside between Mecca (Mortmar on Highway 111, on stony flats) 60 Comment
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Jun 24 2012
  UC809741  Mentzelia involucrata Philip A. Munz 1949-4-12 13032 Riverside North base of Eagle Mts. Mohave Desert 944 Comment
  UC872488  Mentzelia involucrata I. W. Clokey 1935-4-17 6762 Riverside Cottonwood Springs Comment
  UC872489  Mentzelia involucrata C. L. Hitchcock 1940-3-29 5855 Riverside ca 100 yards e Spring; Cottonwood Canyon Comment
  UC872491  Mentzelia involucrata Ira L. Wiggins 1937-2-25 8612 Imperial 0.7 mi n All-American Canal Spillway (Picacho Wash) Comment
  UC872492  Mentzelia involucrata P. A. Munz, D. Keck 1922-4-9 4827 Riverside 3 m ne hayfields (so. base of Eagle Mtns.); Colorado Desert 213 Comment
  UC872535  Mentzelia involucrata Mrs. Joe Clemens 1922-4-10 Riverside Mecca Comment
  UC872536  Mentzelia involucrata Alice Eastwood 1913-4-14 2712 San Diego Colorado Desert, San Felipe Creek Comment
  UC922678  Mentzelia involucrata Annie M. Alexander and Louise Kellogg 1940-3-20 869 San Bernardino 1 m s 29 Palms Inn (29 Palms) 640 Comment
  UCD117237  Mentzelia involucrata P. C. Everett 1958-4-29 23009 Riverside U.S. Hwy 60/70, Indio to Blythe, 6.5 miles east of junction with U.S. Hwy. 99. 243 Comment
  UCD117239  Mentzelia involucrata C. L. Hitchcock 1966-3-16 24211 Riverside along Palms to Pines Highway, 4 miles south of Palm Desert. 609 Comment
  UCD117240  Mentzelia involucrata Geoffrey Levin 1975-4-5 471 Riverside 1 mile west of Berdoo Canyon Road on Dillon Road. Foothills of the Little San Bernadino Mountains. 60 Comment
  UCD117241  Mentzelia involucrata R. N. Raynor 1933-3 s.n. San Bernardino Mohave Desert. Comment
  UCD117242  Mentzelia involucrata John Wear 1995-3-22 s.n. Riverside Colorado Desert, wash along Eagle Mountain Road, N of I-10 near Desert Center. Comment
  UCD117243  Mentzelia involucrata Grady L. Webster; S. Lynch 1973-3-19 7626 San Diego S-facing slope above Culp Canyon. 762 Comment
  UCD83515  Mentzelia involucrata Ellen Dean; Tom Starbuck, Margaret Starbuck 2010-4-8 5857 Imperial BLM Algodones Dunes Natural Area. E side of dunes. 6 mi N of Hwy 78, along Kipf Rd. E and W side of road. 74 Comment
  UCR100801  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-3-18 2893 Imperial Sonoran (Colorado) Desert, 4.7 miles north of Winterhaven on Picacho Rd & 1 mile NW of the All-American Canal 76 Comment
  UCR102689  Mentzelia involucrata B. G. Pitzer 1998-2-2 3495 Imperial Sonoran (Colorado) Desert, Algodones Dunes, S terminus of Ogilby Road, on south side of Hwy I-8. S end of dunes 61 Comment
  UCR102722  Mentzelia involucrata B. G. Pitzer 1998-1-24 3408 Riverside Sonoran (Colorado) Desert, N foot of Chuckwalla Mtns, Eagle Mt Rd, south side of Hwy I-10, 0.8 mi south of Hwy at powerline rd, & wash directly south of road 500 Comment
  UCR102746  Mentzelia involucrata B. G. Pitzer 1998-2-1 3445 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UCR103294  Mentzelia involucrata George K. Helmkamp 1998-4-4 3179 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  UCR103310  Mentzelia involucrata George K. Helmkamp 1998-4-4 3170 Riverside Sonoran (Colorado) Desert, 7.1 miles north of Hwy I-10 on Eagle Mtn Rd, to the vicinity of the pumping station 305 Comment
  UCR103338  Mentzelia involucrata George K. Helmkamp 1998-3-30 3035 San Bernardino Mojave Desert, vicinity of Twentynine Palms; Encelia Ave., 1.0 mi. north of Calif. Hwy 62 793 Comment
  UCR103552  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-1-17 2535 Riverside Sonoran (Colorado) Desert, Box Canyon, NE of Mecca and 3.5 mi south of Shavers Well. 244 Comment
  UCR103553  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-1-17 2538 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal .3 Comment
  UCR103624  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-3-19 2927 Imperial Sonoran (Colorado) Desert, Imperial Dam area, just south of the dam on Hwy S-24. 76 Comment
  UCR104031  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2737 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR104844  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 1998-2-5 2672 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR112106  Mentzelia involucrata A. C. Sanders, T. B. Salvato, Mitch Provance 2000-4-25 23358 Riverside Coachella Valley, east side of the Coachella Canal between I-10 and Ave. 56 (Airport Rd.), 3 miles east of Thermal 15 Comment
  UCR119342  Mentzelia involucrata B. G. Pitzer 2000-5-7 4134 Riverside Sonoran (Colorado) Desert, extreme north end of Orocopia Mountains, Shavers Valley, at base of hills c. 0.5 mi. SE of Box Canyon Road. 341 Comment
  UCR120101  Mentzelia involucrata Jon P. Rebman, A. Salywon, C. M. Christy 1998-3-23 4952 Imperial Sonoran (Colorado) Desert, W of Picacho State Recreation Area; along Indian Pass Road c. 9.1 mi east of Ogilby Road 150 Comment
  UCR124003  Mentzelia involucrata George K. Helmkamp, E. A. Helmkamp 2001-4-14 6467 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR133533  Mentzelia involucrata E. K. Balls 1949-4-2 12896 Riverside Sonoran (Colorado) Desert, between Mecca and Mortmar on Hwy 111 -61 Comment
  UCR133900  Mentzelia involucrata June Latting 1978-4-5 s.n. Imperial Sonoran (Colorado) Desert, north of Ocotillo at end of paved disposal road [Shell Canyon Rd.], below entrance to Fossil Canyon 137 Comment
  UCR135931  Mentzelia involucrata A. C. Sanders, Kent Beaman 2004-4-21 27601 San Bernardino Mojave Desert, proposed 160 acre gravel quarry on Kane Wash, c. 0.5 mi. west of Fort Cady Road at a point 2 miles south of I-40, c. 5 miles (air) SE of Newberry Springs, between Troy Lake and the Rodman Mountains, east of the Newberry Mountains 575 Comment
  UCR147843  Mentzelia involucrata Steve Boyd, Et al. 2004-5-14 11276 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, 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 570 Comment
  UCR148390  Mentzelia involucrata Steve Boyd, Tammy Morgan 2004-3-30 10696 San Bernardino Central Mojave Desert, S end of the Cady Mountains, NW of Ludlow (N of Interstate 40) about hill topped with communication towers 854 Comment
  UCR148479  Mentzelia involucrata John F. Green, Chet McGaugh 2005-1-19 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, 1.1 mile transect along Coachella Canal right-of-way, between siphons 24 and 25, NE of Hunters Spring, near S base of Orocopia Mtns. 23 Comment
  UCR15853  Mentzelia involucrata Frank C. Vasek 1978-4-22 s.n. San Bernardino Mojave Desert, Sheephole Mountains, canyon east of Sheephole Pass. Site VE 979 Comment
  UCR159182  Mentzelia involucrata A. C. Sanders, J. Andre , P. J. MacKay, Tim Thomas & CNPS Fld Trip 2005-2-26 29094 San Bernardino Sonoran (Colorado) /Mojave Desert transition, along jeep road c. 0.5 mi. north of Hwy 62 at the south tip of the Calumet Mtns., north of the Coxcomb Mtns., east side of 558 m hill 488 Comment
  UCR16331  Mentzelia involucrata Anna Mayers 1978-4-15 s.n. Riverside Sonoran (Colorado) Desert, Hwy 195, 3 km north of Painted Canyon Road Comment
  UCR16423  Mentzelia involucrata Bill Curran, G. W. Forister 1967-4-29 s.n. Kern NW Mojave Desert, Kiavah Mtns, 14.75 mi. north of junction of Hwy 14 and Hwy 466. Turn left and travel 2 mi. to Los Angeles Aqueduct. Continue to Tree Canyon , 0.5 mi. farther 915 Comment
  UCR164599  Mentzelia involucrata Jim Andre, Frank Smith 1997-3-26 4171 San Bernardino Mojave Desert, Bullion Mtns: Cleghorn Pass, USMC 29 Palms 610 Comment
  UCR165466  Mentzelia involucrata John F. Green 2005-3-10 s.n. Imperial Sonoran (Colorado) Desert, Salton Basin, transect along the road on the immediate NE side of the Coachella Canal right-of-way, between siphons 15 and 16, c. 2 miles NE of Frink and c. 10 miles east of Bertram 23 Comment
  UCR165638  Mentzelia involucrata John F. Green 2005-2-2 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, transect along Coachella Canal right-of-way, between siphons 29 and 30, c. 3 mi east of Desert Beach 24 Comment
  UCR166776  Mentzelia involucrata Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10892 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  UCR167459  Mentzelia involucrata John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, NNE of Rancho Dos Palmas, between Coachella Canal siphons 28 and 29 24 Comment
  UCR168129  Mentzelia involucrata Sarah J. De Groot, J. M. Porter, Naomi Fraga, Lauren E. Machen 2003-5-4 2779 San Bernardino Sonoran (Colorado) Desert, WHIPPLE MOUNTAINS: South side of range, along Colorado River aqueduct west of Chamber's Well road. 285 Comment
  UCR168660  Mentzelia involucrata Sarah J. De Groot, Tasha LaDoux 2003-5-20 2930 San Bernardino Sonoran (Colorado) Desert, WHIPPLE MOUNTAINS: Hills and wash between War Eagle Mine and summit ridge. Near 497 Comment
  UCR169794  Mentzelia involucrata Scott D. White, Jennifer H. Jones 2005-4-19 10950 Imperial Sonoran Desert, Fish Creek Mountains 213 Comment
  UCR175179  Mentzelia involucrata Jim Andre 2006-4-26 6760 Riverside South Mojave Desert, Joshua Tree National Park: Long Canyon, c. 2.3 mi south of the NE corner (boundary) of the park 1056 Comment
  UCR178537  Mentzelia involucrata R. G. Swinney 1967-5-26 137 Riverside Sonoran (Colorado) Desert/ San Jacinto Mtns., Snow Creek 381 Comment
  UCR180230  Mentzelia involucrata Scott D. White, Pam Devries 2006-3-14 11258 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, a few mi east of Indio, at proposed I-10 Freeway/ McNaughton Parkway interchange, north of the I-10 Freeway 152 Comment
  UCR182912  Mentzelia involucrata Jim Andre, T. La Doux 2006-3-31 7634 Inyo Northern Mojave Desert, Panamint Mtns: Along Butte Valley Rd, S end of Panamint Mtns in gravelly wash 648 Comment
  UCR183258  Mentzelia involucrata Jim Andre, T. La Doux 2006-3-31 7634 Inyo Northern Mojave Desert, Panamint Mtns: Along Butte Valley Rd, S end of Panamint Mtns in gravelly wash 648 Comment
  UCR18341  Mentzelia involucrata A. C. Sanders, R. Twitchell 1978-4-7 00419 San Bernardino Eastern Colorado Desert, Chemehuevi Valley, 5 miles SW of Havasu Lake, along Chemehuevi Wash near West Well 232 Comment
  UCR196363  Mentzelia involucrata Naomi Fraga, Lisa Rojas 2005-2-10 1358 Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 365 Comment
  UCR200296  Mentzelia involucrata Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11219 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains, western base of the Chocolate Mountains, small canyon c. 1.25 mi due north of Imperial Co. line and c. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range 549 Comment
  UCR200338  Mentzelia involucrata Jim Andre 2003-2-23 9292 San Bernardino Mojave Desert, Whipple Mountains, large wash along Metropolitan Water District road, c. 1 mi southwest of Parker Dam 176 Comment
  UCR204306  Mentzelia involucrata LeRoy Gross, Pamela Conway 2008-3-26 3007 San Bernardino Northcentral Mojave Desert, Alvord Mine, southern portion of the Alvord Mountains, c. 6 mi northeast of Manix 696 Comment
  UCR210836  Mentzelia involucrata A. C. Sanders, Fred M. Roberts, Eve Laeger, et al 2009-3-28 36661 San Bernardino Mojave Desert, Cady Mountains, along the powerline route in the pass between Pisgah and Broadwell valleys, slopes below peak with microwave/radio towers (peak 3307), c. 1.5 miles NNW of Black Butte Mine 854 Comment
  UCR210906  Mentzelia involucrata A. C. Sanders, Fred M. Roberts, Florence Caplow, et al 2009-3-23 36536 San Bernardino East-central Mojave Desert, north foot of Sleeping Beauty Mtn., valley c. 8.5 km west of Broadwell Dry Lake 671 Comment
  UCR210955  Mentzelia involucrata A. C. Sanders, A. Howald, Brian A. Elliott, et al 2009-4-4 36780 San Bernardino Mojave Desert, Cady Mountains, along road to microwave/radio towers on peak 3307, c. 1.5 mi. NNE of Black Butte Mine 959 Comment
  UCR210991  Mentzelia involucrata A. C. Sanders, Fred M. Roberts, Katy Beck, Eve Laeger, et al 2009-3-27 36643 San Bernardino Mojave Desert, Cady Mountains, along the powerline route in the pass between Pisgah and Broadwell valleys 823 Comment
  UCR211177  Mentzelia involucrata Jim Andre, T. La Doux 2009-2-26 9889 Imperial Sonoran (Colorado) Desert, Palo Verde Mountains, along major powerline corridor (Palo Verde Road) that runs north-south through mountains, c. 1 mile south of pass 182 Comment
  UCR211397  Mentzelia involucrata Jim Andre 2009-4-10 10130 San Bernardino Mojave Desert, Clipper Mountains; southwest end of the Clipper Mtns. along dirt road to Bonanza Mine, 2.2 miles N of Hwy 66 at Danby 559 Comment
  UCR211988  Mentzelia involucrata Jon P. Rebman, Guy L. Fleming, W. Schmidtmann, Gary Erbeck 2009-3-9 16177 Imperial Colorado (Sonoran) Desert, Freeman Properties (Truckhaven), west of the Salton Sea, northwest of Salton City, west of Hwy 86, Section 20 (SL20), Palm Wash, Site BRATOU in sandy arroyo bottom and surrounding mud embankments. 45 Comment
  UCR214298  Mentzelia involucrata A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37471 Riverside Sonoran (Colorado) Desert, SE side of McCoy Mountains, upper part of wash c. 4.5 mi. NW of Blythe Airport, c. 3.5 mi. ENE of McCoy Peak 244 Comment
  UCR215003  Mentzelia involucrata T. B. Salvato 2010-4-20 4068 Riverside Sonoran (Colorado) Desert, alluvial slope between the McCoy Mountains and McCoy Wash, c. 14 mi northwest of Blythe 189 Comment
  UCR216275  Mentzelia involucrata Jim Andre, T. La Doux 2008-1-19 10932 San Bernardino Eastern Mojave Desert, Bristol Mountains, along gas pipeline road, 6.7 mi west of Kelbaker Road, c. 1.5 mi south of Hwy I-40 804 Comment
  UCR216632  Mentzelia involucrata Jim Andre 2010-4-23 13756 San Bernardino Eastern Mojave Desert, Bristol Mountains, along powerline road at north end of range, c. 10 miles west of Budweiser Wash and 21 miles west of Kelbaker Road, c. 7 miles north off Hwy I-40 769 Comment
  UCR216680  Mentzelia involucrata Jim Andre, T. La Doux 2009-3-10 11241 Riverside Joshua Tree National Park, south end of the Cottonwood Mountains near Pinkham Wash, just north of aqueduct just inside JTNP boundary, c. 7 miles west of south entrance into park at Cottonwood 542 Comment
  UCR217004  Mentzelia involucrata Jim Andre, T. La Doux, Heath Bartosh, Robert E. Preston, JEPS Herbarium Workshop 2010-3-19 12206 San Bernardino Sonoran (Colorado) Desert, Turtle Mountains; east side of Turtle Mountains, c. 0.3 mi. west of Hwy 95, 6 miles NNW of Vidal Junction 367 Comment
  UCR217491  Mentzelia involucrata Jim Andre, T. La Doux, J. O. Sawyer, J. P. Smith, J. Cole 2010-4-16 13653 San Bernardino Mojave Desert, Providence Mountains, Mojave National Preserve, Cornfield Spring, 4.5 mi east southeast of Kelso 972 Comment
  UCR217792  Mentzelia involucrata Jim Andre, T. La Doux 2010-2-28 12551 Riverside Lower Colorado River Valley, along Hwy 95 c. 25 miles north of Blythe, on east side of Big Maria Mountains, under radio tower 83 Comment
  UCR218372  Mentzelia involucrata Jim Andre 2009-3-4 11270 San Bernardino Mojave Desert, Cady Mountains, along major powerline corridor 7 miles east of Cady Peak, 3 miles NNW of Broadwell Dry Lake and 1 mile west of Crucero Road 493 Comment
  UCR226727  Mentzelia involucrata Jim Andre 2011-2-9 15912 Riverside Sonoran (Colorado) Desert, Mecca Hills, along Box Canyon Road at upper end of gorge, c. 6 mi south southeast of the junction with Hwy I-10, c. 12 mi west of Chiriaco Summit 284 Comment
  UCR226802  Mentzelia involucrata Jim Andre 2011-3-19 16408 San Bernardino Mojave Desert, Bristol Mountains, along pipeline road 9.0 mi west of Kelbaker Road, c. 4 mi south of Hwy I-40 647 Comment
  UCR232127  Mentzelia involucrata Jim Andre 2011-4-6 18668 San Bernardino Mojave Desert, Mojave National Preserve, 0.5 mi west of Kelbaker Road, 2.6 mi north of Kelso, west of Kelso Mountains 731 Comment
  UCR232431  Mentzelia involucrata Jim Andre 2011-4-6 18743 San Bernardino Mojave Desert, along powerline road, 7.0 mi east of Hwy 127, at Silver Lake, 2 mi west of Turquoise Mountain, c. 15 mi north northeast of Baker 705 Comment
  UCR232515  Mentzelia involucrata Dave Silverman 2010-3-30 7890 Riverside Sonoran (Colorado) Desert, east flank of southern McCoy Mountains, 1.8 km W of Black Creek Rd, 7.0 km E of McCoy Peak, and 4.4 km north of I-10 175 Comment
  UCR233171A  Mentzelia involucrata Jim Andre, Glenn L. Clifton 2011-2-22 17440 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  UCR233470  Mentzelia involucrata Jim Andre 2011-3-12 17764 San Bernardino Mojave Desert, Dead Mountains, south end of range on north side of RR Tracks 329 Comment
  UCR234714  Mentzelia involucrata Jim Andre 2011-4-15 17239 Kern Mojave Desert, El Paso Mountains, Mormon Gulch north of Goler Heights, 0.7 mi north of Garlock Road. 4.1 mi west of US Hwy 395 821 Comment
  UCR241526  Mentzelia involucrata A. C. Sanders, Mitch Provance, Fred M. Roberts 2013-3-22 40644 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, Graham Pass at large wash crossing Graham Pass Rd. north of the summit 410 Comment
  UCR244306  Mentzelia involucrata Jim Andre 2012-4-16 20886 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park; along Cottonwood Springs Rd., 1.0 mi. north of south entrance to J.T.N.P. 584 Comment
  UCR244910  Mentzelia involucrata Jim Andre 2012-3-19 21379 Riverside Sonoran (Colorado) Desert, Palen Mountains, along Palen Pass Rd at Palen Pass 383 Comment
  UCR251916  Mentzelia involucrata Jim Andre 2013-3-27 24817 Riverside NE Colorado Desert, east side of Riverside Mountains, along Hwy 95, 13.2 mi south of Vidal Junction 126 Comment
  UCR253875  Mentzelia involucrata Jim Andre 2013-3-4 24083 Imperial Sonoran (Colorado) Desert, Cargo Muchacho Mountains, southeast side of range, c. 12 miles northwest of Yuma, just west of Barney Oldfield Road, 5.0 miles north of the junction with I-8 158 Comment
  UCR256329  Mentzelia involucrata Duncan S. Bell 2012-3-18 3193 Riverside Sonoran (Colorado) Desert, Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, c. 2.8 air miles southwest of Hidden Spring 20 Comment
  UCR260271  Mentzelia involucrata A. C. Sanders, Jim Malusa 2015-3-7 41313 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, side canyon west of north fork of Salvation Wash, US Navy Chocolate Mountains Aerial Gunnery Range 457 Comment
  UCR267598  Mentzelia involucrata Jim Andre 2014-3-24 30013 San Bernardino Eastern Mojave Desert, Mojave National Preserve, Providence Mountains, western base of range, along road to Cornfield Spring, 2.2 mi east-southeast of Kelso 708 Comment
  UCR269524  Mentzelia involucrata A. C. Sanders, Jim Malusa, M. Baker, M. Cloud-Hughes 2016-3-3 42007 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, Mammoth Wash area, along dirt road to Hayden Well from Ted Kipf Rd. 201 Comment
  UCR269556  Mentzelia involucrata A. C. Sanders, Jim Malusa, M. Baker, M. Cloud-Hughes 2016-3-4 42013 Imperial Sonoran (Colorado) Desert, Hayden Well on Mammoth Wash, Chocolate Mountains 284 Comment
  UCR272147  Mentzelia involucrata Duncan S. Bell 2015-4-3 8016 San Bernardino Mojave Desert/San Bernardino Mtns., eastern slope of Flat Top Mesa, to the east of Black Lava Butte, at the southeastern end of the Bighorn Mountains 1188 Comment
  UCR274850  Mentzelia involucrata David Fraker, Aaron C. Sedgwick 2012-4-4 067 Riverside Sonoran (Colorado) Desert, south of Joshua Tree National Park, north of Hwy I-10 on powerline road, 0.5 mi west of Cottonwood Springs Road 522 Comment
  UCR276023  Mentzelia involucrata Jim Andre 2016-3-6 34845 Imperial Santa Rosa Mountains, base of southeastern end of range, west of Coolidg Spring Road, 0.7 mile west of Hwy 86, c. 1.5 miles west of Salton Sea at 'Desert Shores -11 Comment
  UCR278207  Mentzelia involucrata Jim Andre 2016-3-14 35700 San Bernardino Eastern Mojave Desert, 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-40 630 Comment
  UCR29258  Mentzelia involucrata George K. Helmkamp 1983-3-24 383- 01 Riverside Sonoran (Colorado) Desert, N side of Chuckwalla Mtns., Chuckwalla Springs Road, 5 mi. west of Graham Pass Road. 366 Comment
  UCR31160  Mentzelia involucrata A. C. Sanders 1983-4-23 3790 San Bernardino Sonoran/Mojave Desert, Whipple Mtns, above and east of Whipple Wash along the powerline road 305 Comment
  UCR33443  Mentzelia involucrata B. A. Prigge 1978-4-22 2650 San Bernardino Mojave Desert, Bristol Mtns, Onyx Mine area, c. 11.5 air mi. ENE of Ludlow 765 Comment
  UCR37719  Mentzelia involucrata George K. Helmkamp 1984-4-29 A- 4 San Bernardino Little San Bernardino Mtns., Big Morongo Canyon near the Riverside Co. line, 2 mi. below the Big Morongo Preserve headquarters 701 Comment
  UCR4133  Mentzelia involucrata Ronald M. Cope 1965-3-20 s.n. Riverside Western Colorado Desert/ San Bernardino Mtns., Small canyon on W side of Whitewater Canyon Road c. 2 mi. from trout hatchery. 549 Comment
  UCR41838  Mentzelia involucrata A. C. Sanders, D. Charlton, B. Pitzer, R & J. Kniffen, and W. W. Wright 1986-3-10 6256 Imperial Sonoran (Colorado) Desert, Coyote Mtns., 2.15 miles north of Hwy S-2 on dirt road 1.1 miles SE of San Diego Co. line 306 Comment
  UCR4453  Mentzelia involucrata Frank C. Vasek 1960-3-17 600317- 03 Riverside Sonoran (Colorado) Desert, Morongo Canyon, E side of the road on hill at mouth of canyon, 4.5 mi NW of Desert Hot Springs 579 Comment
  UCR50920  Mentzelia involucrata A. C. Sanders 1988-5-11 7796 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal, east of the gasline road from Niland 549 Comment
  UCR51970  Mentzelia involucrata Steve Boyd, S. Meury , Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2139 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  UCR68714  Mentzelia involucrata Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4567 Riverside Agua Tibia Mtns., Vail Lake area, steep SE flank of Oak Mountain, above NE end of lake. 549 Comment
  UCR73892  Mentzelia involucrata B. G. Pitzer, S. Bliss, K. B. Barrows, C. Sylber 1991-5-20 1607 San Bernardino Mojave Desert, Twentynine Palms MCAGCC, Emerson Lake Artillery Range, just east of Los Padres Mine, c. 4.5 air km south of Emerson Dry Lake & 9 air km SE of summit of Hidalgo Mtn 732 Comment
  UCR74382  Mentzelia involucrata Theo Glenn 1991-5-2 91- 29 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  UCR75048  Mentzelia involucrata A. C. Sanders, E. J. Lawlor 1992-4-4 12102 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  UCR85074  Mentzelia involucrata A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16064 Imperial Sonoran (Colorado) Desert, Salton Sink, foothills of Santa Rosa Mtns, rocky slopes SE of VABM Oasis, c. 1 mi NNW of Coolidge Springs 25 Comment
  UCR85401  Mentzelia involucrata John Wear, Tish Bennett, Nathan Moorhatch 1995-4-28 s.n. Imperial Sonoran Desert, Fish Creek Mtns, U.S. Gypsum mine 152 Comment
  UCR86398  Mentzelia involucrata B. G. Pitzer, S. Bliss, C. Sylber 1991-5-19 1554 San Bernardino Mojave Desert, 29 Palms Marine Corps Base: 'Emerson Lake' Artillery Range, W side of Hidalgo Mtn, c. 4.5 air km east of S end of Emerson Dry Lake. At foot of Hidalgo Mtn. 915 Comment
  UCR86862  Mentzelia involucrata A. C. Sanders, K. C. Rose 1995-4-27 16730 Riverside Sonoran (Colorado) Desert, Coachella Valley, foot of the Little San Bernardino Mtns., canyon east of Fan Hill, just outside Joshua Tree Nat. Park 549 Comment
  UCR88536  Mentzelia involucrata A. C. Sanders 1995-4-13 16497 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Devil's Garden, E end of the mtns., 2.1 mi west of Hwy 62 on Pierson Avenue and dirt extension, 1.7 mi above Sierra Blvd. 793 Comment
  UCR90160  Mentzelia involucrata R. W. Scora 1966-4-1 3035 Riverside Sonoran (Colorado) Desert, Coachella Valley, 3-4 km east of Thousand Palms on Ramon Road; near Hidden Spring Oasis 60 Comment
  UCR96326  Mentzelia involucrata B. G. Pitzer 1992-4-16 2063 San Bernardino Mojave Desert, 29 Palms Marine Corps Base, 'East' Artillery Range, c. 1 air mi. north of southern boundary of base & c. 1 air mi. NW of Valley Mtn. 610 Comment
  UCSB24938  Mentzelia involucrata Keefe, Joseph 1967-3-23 Riverside Whitewater Canyon Road, 1.9 miles north of U.S. Highway 99, east of Banning 609 Comment
  UCSB33332  Mentzelia involucrata Black, Nan 1968-3-2 Imperial 50 feet east of Fossil Canyon Road, 4.2 miles northwest of junction of Shell Canyon Road and S-2, Ocotillo 243 Comment
  UCSB33608  Mentzelia involucrata Simmons, Karen 1979-3-25 Riverside 8.8 miles southwest of Hwy. 10, on Box Canyon Rd. 30 Comment
  UCSB37940  Mentzelia involucrata Carlson, B. 1978-3-24 Riverside East of Desert Hot Springs, Berdoo Cyn Rd., 7.7 mi. N. of Dillon Rd., 10m from road edge Comment
  UCSB39335  Mentzelia involucrata Jorgensen, Jan 1982-3-21 Riverside Corn Spring Oasis, Chuckwalla Mountains 600 Comment
  UCSB4214  Mentzelia involucrata Broder, Richard 1958-03 Riverside 5.8 miles east of Desert center on US 60-70 Comment
  UCSB4215  Mentzelia involucrata Hurd, Richard 1956-4-14 Riverside Road to Devil's Garden; 3 miles from Highway 99 Comment
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Nov 23 2014
  UCSB4219  Mentzelia involucrata Beeks, Richard 1952-4-4 Riverside 7 miles N of Mecca in Box Canyon Comment
  UCSB4221  Mentzelia involucrata Atsatt, Pete 1958-3-21 Riverside 1.5 miles from town of Whitewater, U.S. Highway 66 & 99; up Whitewater Canyon 518 Comment
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Nov 19 2014
  UCSB4226  Mentzelia involucrata Haller, John 1960-4-2 Riverside 1.3 miles south of the junction of US 60-70 and the south entrance road to Joshua Tree Natl. Mon. 487 Comment
  UCSB4252  Mentzelia involucrata Sage, Paul San Bernardino South side of Highway 99, 6 miles east of Desert Center Comment
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Dec 17 2016
  UCSB4253  Mentzelia involucrata Haller, John 1958-3-22 Riverside Immediately S. of Hyws. 60-70, 5.8 miles E. of Desert Center Comment
  UCSB44891  Mentzelia involucrata Collins, Elizabeth 1977-3-30 Riverside Corn Springs campground, 8 miles south of Hwy. 10 457 Comment
  UCSB45202  Mentzelia involucrata Matthews, K. 1977-3-25 Riverside 2 Miles south of 1-60 on Highway 195 off roadway 76 Comment
  UCSB52696  Mentzelia involucrata Thorne, Robert 1978-4-29 Imperial West of Chocolate Mtns., ca. 1 mile E of Coachella Canal and W of Melson Well Comment
  UCSB59458  Mentzelia involucrata Cromwell, J. 1991-4-29 Kern S.W. terminus of the Rand Mtns. on the Desert Tortoise Natural Area 883 Comment
  UCSB8382  Mentzelia involucrata Gunnerson, Robert 1953-3-22 Riverside 9 miles east of Indio Comment
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Nov 23 2014
  VVC2998  Mentzelia involucrata Tim Thomas, G Rink, A Schuab 2014-3-24 6180 A San Bernardino Mojave Desert, Johnson Valley; limestone hills just west of Galway Dry Lk. 870 Comment
  VVC305  Mentzelia involucrata W. W. Mayhew 1960-3-17 s.n. Riverside Colorado Desert, 4.5 miles NW Desert Hot Springs. 482 Comment
  VVC3063  Mentzelia involucrata Tim Thomas 2015-4-18 6542 San Bernardino Mojave Desert, Johnson Valley - Iron Hills - Bessemer Mine 970 Comment
  CSUSB967  Mentzelia involucrata Eric Helgesen 1968-4-13 San Bernardino Joshua Tree National Forest Joshua Tree National Forest Comment
  GH76047  Mentzelia involucrata C. C. Parry 1876-1-1 Unknown Comment
  GMDRC174  Mentzelia involucrata B. A. Stein 1978-4-1 7 San Bernardino Granite Mountains: West-facing rocky slope above Bull Canyon Wash, c. 2600 793 Comment
  JOTR01115  Mentzelia involucrata Cole, James E. 1941-4-5 494 San Bernardino Joshua Tree National Park. 49 PALMS CANYON 609 Comment
  NY112203  Mentzelia involucrata C. C. Parry 1876-1 138 San Bernardino Comment
  NY112204  Mentzelia involucrata C. C. Parry 1876-1 138 San Bernardino Comment
  NY621937  Mentzelia involucrata C. C. Parry 1876-1 138 San Bernardino Comment
  NY621939  Mentzelia involucrata C. C. Parry 1876-1 138 San Bernardino Comment
  OBI32781  Mentzelia involucrata Glen W. Forister 1967-4-29 s.n. Kern Tree Cyn, 14.5 mi N of jctn of hwy 14 & 466 near Mojave. 2.5 mi off 14 on S facing side of cyn. Mt Diablo base meridian, on the Mojave Quad, 15' series topo map 914 Comment
  RSA0038374  Mentzelia involucrata A. Lee Haines 1973-3-24 s.n. Riverside Orocopia Mountains. 457 Comment
  RSA0065560  Mentzelia involucrata David B. Dunn, Lint 1955-4-1 11820 Riverside Pushawalla Canyon, Indio Hills. Comment
  RSA169148  Mentzelia involucrata E. C. Twisselmann 1964-5-6 9310 Kern The Mojave - Randsburg Region 762 Comment
  RSA440428  Mentzelia involucrata Edwin Kline 1920-3-28 s.n. Imperial Colorado Desert Comment
  RSA440431  Mentzelia involucrata M. French Gilman 1939-5-5 167 Inyo Hanaupah Canyon [Panamint Mtns.] 1067 Comment
  RSA440433  Mentzelia involucrata D A Delicate 1937-5-11 20387 Kern Tehachapi Mts Comment
  RSA519022  Mentzelia involucrata D. A. Hoover 1986-4-6 742 San Bernardino Gneiss Canyon E of pipeline road and the upper end of the desert wash trail. 838 Comment
  RSA552023  Mentzelia involucrata Alan Romspert 1976-1 388 Inyo Surprise Canyon, Panamint Mts, Death Valley National Monument. 1280 Comment
  SBBG69261  Mentzelia involucrata S. W. Hutchinson -Mar-1926 504 Unknown Colorado Desert 76 Comment
  SBBG89540  Mentzelia involucrata J. Adams 1966-3-17 479 San Diego 2 mi SW of Borrego Springs on rd to Hwy 79 152 Comment
  SEINET3240655  Mentzelia involucrata Melvin M. Sweet 2008-1 652 San Diego Anza-Borrego Desert State Park, Fish Creek Wash, Fish Creek Jeep Road about 2 miles SW from intersection with Split Mountain Road, 0.5 mi W of Imperial County line. 105 Comment
  SEINET8712370  Mentzelia involucrata I. W. Clokey 1935-4-17 6762 Riverside Cottonwood Springs. Comment
  SEINET8712377  Mentzelia involucrata K. Brandegee 1900-4-22 s.n. San Diego Borrego Springs. Comment
  UC334701  Mentzelia involucrata John Gill Lemmon Unknown Western California Comment
  UC335512  Mentzelia involucrata John Gill Lemmon Riverside Colorado Desert Comment
  UC569107  Mentzelia involucrata P. A. Munz 1935-4-7 13789 San Bernardino 6 mi n 29 Palms (southern Mohave Desert) 914 Comment
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Jan 12 2016
  UCSB10446  Mentzelia involucrata Lloyd, Robert 1959-4-4 Kern 1 mile N of Red Rock to Randsburg Road in Last Chance Canyon, 6 miles east of US Highway 6, El Paso Mtn. Range in Mojave Desert 673 Comment
  UCSB4216  Mentzelia involucrata Kohrs, Herb 1946-4-5 Kern Last Chance Canyon, 30 miles NNE of Mojave Comment
  UCSB4217  Mentzelia involucrata Griggs, Helen 1946-4-5 Kern Six miles north west of Mojave; Mojave Desert Comment
  UCSB4218  Mentzelia involucrata Jones, Cornelia 1946-4-17 Kern Slopes of Last Chance Canyon, 30 miles E-NE of Mohave Comment
  UCSB4220  Mentzelia involucrata Phillips, Priscilla 1958-3-22 San Bernardino 1 mile south of south entrance to Joshua Tree Monument Comment
  UCSB4223  Mentzelia involucrata Eriksen, C. 1954-4-29 San Bernardino 3 miles W of Morango Valley along Hwy. Comment
  UCSB4224  Mentzelia involucrata Long, Frances 1926-3-21 Unknown Hill north of Libertad Bay Comment
  RSA617541  Mentzelia involucrata subsp. megalantha Mary DeDecker 1974-5-30 3523 Kern Sierra Nevada: Water Canyon, Jawbone area. 1006 Comment
  RSA649275  Mentzelia involucrata subsp. megalantha Sears 1978-3-18 917 Riverside 3 mi. E. of Corn Spring, 9 mi. SE of Desert Center. 366 Comment
  RSA720425  Mentzelia involucrata var. involucrata B. A. Stein 1978-4-10 7 San Bernardino West-facing rocky slope above Bull Canyon Wash. 2600 Comment
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Apr 10 2008
  SDSU18213  Mentzelia involucrata var. involucrata Claude Edwards 1982-3-13 San Bernardino Rocky Wash east of Sunshine Crest study area, MCAGCC, Twentynine Palms, CA 576 Comment
  UCR151418  Mentzelia involucrata var. involucrata LeRoy Gross, V. Arvizu, Sarah De Groot, Lisa Rojas, T. Thibault 2004-5-13 1273 Imperial Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains (Chocolate Mountains Aerial Gunnery Range). North of Lion Head Mountain, near Beal Well. Surrounding desert off of Beal Road 400 Comment
  UCR269500  Mentzelia involucrata var. involucrata A. C. Sanders, Jim Malusa, M. Baker, M. Cloud-Hughes 2016-3-4 42043 Imperial Sonoran (Colorado) Desert, 0.9 km SSE (168 deg. ) of Hayden Well in pass through the hills east of Mammoth Wash, Chocolate Mountains 255 Comment
  UCR279123  Mentzelia involucrata var. involucrata A. C. Sanders, Jim Malusa, Isaac Marck 2017-3-8 42746 Imperial Sonoran (Colorado) Desert, mouth of Ninemile Canyon just above Hwy 78, Chocolate Mountains 314 Comment
  UCR279135  Mentzelia involucrata var. involucrata A. C. Sanders, Jim Malusa 2017-3-11 42814 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, Niland to Pegleg Well Rd., in mouth of the canyon of Salvation Wash, 20.45 km due east (90 deg. ) of Niland 268 Comment
  UCR279483  Mentzelia involucrata var. involucrata A. C. Sanders, Jim Malusa, Isaac Marck 2017-3-7 42716 Imperial Sonoran (Colorado) Desert, upper Ninemile Wash, near old well (windmill) and trough, Chocolate Mountains 409 Comment
  RSA621069  Mentzelia involucrata var. involucrata Mary DeDecker 1978-4-18 4528 Inyo Panamint Mountains, east side; Johnson Canyon. 945 Comment
  RSA625251  Mentzelia involucrata var. involucrata Mary DeDecker 1985-4-12 5747 San Bernardino Granite Mountains, Fort Irwin; No-name Spring 762 Comment
  CDA36636  Mentzelia involucrata var. megalantha M. S. Wasbauer 1960-3-26 Riverside Shaver s Summit. 0 Comment
  CDA36639  Mentzelia involucrata var. megalantha G. D. Barbe, T. C. Fuller 1973-2-27 1060 Riverside 0.2 mile east of Coachella Canal on Highway 195, Box Canyon Wash, northeast of Mecca. 0 Comment
  CHSC1020  Mentzelia involucrata var. megalantha V. Holt 1935-4-15 Riverside Colorado Desert. Comment
  CHSC21886  Mentzelia involucrata var. megalantha Robert A. Schlising 1973-3-18 3072 Riverside Whitewater Canyon, ca 1 mi n of jct with interstate hwy 10; semi-desert slopes. Comment
  CHSC8267  Mentzelia involucrata var. megalantha Edward L. Smith 1957-4-3 235 Riverside Located 1 mi. n hwy. 99 to La Palms, Calif., in a wash. San Bernardino Mts. 91 Comment
  CHSC8290  Mentzelia involucrata var. megalantha Edward L. Smith 1957-4-3 235 Riverside Located 1 mi. n hwy. 99 to La Palms, Calif. San Bernardino Mts. 91 Comment
  CSUSB821  Mentzelia involucrata var. megalantha Wayne White 1974-5-24 Riverside Chuckwalla Mountains, Colorado Desert On Highway I-10 near Red Cloud Road; Chuckwalla Mountains in Colorado Desert 609 Comment
  CSUSB971  Mentzelia involucrata var. megalantha Bruce Freeman 1968-5-4 680504 5 Riverside Whitewater Canyon, 1 mile south of point where road crosses river. 487 Comment
  POM123017  Mentzelia involucrata var. megalantha Marcus E. Jones 1926-2-15 s.n. Riverside Near Indio. Comment
  POM126251  Mentzelia involucrata var. megalantha Thomas Craig 1927-4-2 25 Riverside Canyon near Hidden Springs. Comment
  POM126264  Mentzelia involucrata var. megalantha Martha Hilend 1927-4-2 s.n. Riverside Box Canyon near Shaver s Well, Colorado Desert. Comment
  POM126804  Mentzelia involucrata var. megalantha E. E. Schellenger s.n. Riverside Colorado Desert. Santa Marie Mts. [Little or Big Maria Mountains] Comment
  POM13053  Mentzelia involucrata var. megalantha P. A. Munz, D. D. Keck 1922-4-9 4836 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 427 Comment
  POM13079  Mentzelia involucrata var. megalantha R. Evans 1921-3-30 s.n. Riverside Painted Canyon, near Mecca. Comment
  POM14014  Mentzelia involucrata var. megalantha P. A. Munz, D. D. Keck 1922-4-13 4940 Riverside Eagle Mountains. 244 Comment
  POM14021  Mentzelia involucrata var. megalantha P. A. Munz, D. D. Keck 1922-4-9 4908 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 427 Comment
  POM14258  Mentzelia involucrata var. megalantha P. A. Munz, D. D. Keck 1922-4-9 4914 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 427 Comment
  POM14554  Mentzelia involucrata var. megalantha J. Clemens 1922-4-10 s.n. Riverside Mecca. Comment
  POM15050  Mentzelia involucrata var. megalantha Mary F. Spencer 1922-4-12 1143 Riverside Palm Springs, Colorado Desert. 122 Comment
  POM15051  Mentzelia involucrata var. megalantha Mary F. Spencer 1922-3-29 1990 Riverside Mecca -49 Comment
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May 29 2011
  POM160080  Mentzelia involucrata var. megalantha E. C. Jaeger 1927-3-23 s.n. Riverside Salt Creek Wash, Colo. Desert Comment
  POM183473  Mentzelia involucrata var. megalantha J. Ewan 1930-4-18 3085 Riverside Dry Morongo Creek below Morongo Valley, Riverside County Comment
  POM213863  Mentzelia involucrata var. megalantha P. A. Munz 1935-4-7 13789 San Bernardino 6 miles north of 29 Palms, Mohave Desert. 915 Comment
  POM254738  Mentzelia involucrata var. megalantha P. A. Munz 1940-3-24 15694 Riverside 3 miles south of Cottonwood Springs, Eagle Mts 457 Comment
  POM259507  Mentzelia involucrata var. megalantha E. C. Jaeger 1939-12-26 s.n. Riverside Fargo Canyon, colorado desert. Comment
  POM259710  Mentzelia involucrata var. megalantha P. A. Munz 1940-3-22 15662 Riverside Whitewater Canyon 2 miles north of Banning-Indio boulevard. Comment
  POM274558  Mentzelia involucrata var. megalantha Lyman Benson 1932-5-7 3534 Kern Desert Mountains. Mojave Desert Watershed; Red Rock Canyon, Rand Mt. 793 Comment
  POM302281  Mentzelia involucrata var. megalantha Lyman Benson 1957-4-3 15715 Riverside 1/2 mile above the mouth of Whitewater Canyon. San Bernardino Mountains; Salton Sea Drainage 579 Comment
  POM308332  Mentzelia involucrata var. megalantha Henry J. Ramsey, Henry J. Ramsey 1939-11-28 3051 Riverside 10 miles east of Indio. Comment
  POM311757  Mentzelia involucrata var. megalantha Shirley See 1958-3-30 220 Riverside 1/2 mile inside the S entrance of Joshua Tree National Monument. 610 Comment
  POM98705  Mentzelia involucrata var. megalantha P. A. Munz 1926-1-31 9951 Riverside Dos Palmos [Palmas] Spring. Comment
  RSA0104084  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa, Marc A. Baker, Michelle Cloud-Hughes 2016-3-15 42193 Imperial Sonoran (Colorado) Desert: Chocolate Mountains, c. 0.8 km NE of Beal Well and c. 0-0.4 km east of old Niland-Blythe Rd. 427 Comment
  RSA124412  Mentzelia involucrata var. megalantha Percy C. Everett, E. K. Balls 1958-4-29 20316 Riverside Hwy 60/70, Indio to Blythe, 1 mile W of Cactus City. 549 Comment
  RSA173992  Mentzelia involucrata var. megalantha Robert F. Thorne 1963-3-29 32398 Riverside Ca. 7-8 miles E of Mecca, Mecca Hills. 152 Comment
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Dec 14 2011
  RSA209562  Mentzelia involucrata var. megalantha P. Healy 1968-4-13 s.n. Riverside Joshua Tree National Forest. Comment
  RSA21379  Mentzelia involucrata var. megalantha Carl B. Wolf 1937-5-4 8524 Riverside Colorado Desert, Little San Bernardino Mts, Morongo Wash, 1 miles below San Bernardino County line. 610 Comment
  RSA250211  Mentzelia involucrata var. megalantha Mary DeDecker 1974-5-30 3523 Kern Sierra Nevada: Water Canyon, Jawbone area. 1006 Comment
  RSA25321  Mentzelia involucrata var. megalantha C. L. Hitchcock 1940-3-29 5855 Riverside Cottonwood Canyon, ca. 100 yards east of Spring. Comment
  RSA314447  Mentzelia involucrata var. megalantha Robert F. Thorne, Mrs. Raymond Fosberg, M. H. Sachet, Charles C. Herbst 1983-4-23 55437 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  RSA336271  Mentzelia involucrata var. megalantha Robert F. Thorne 1978-4-29 52141 Imperial W of Chocolate Mountains: ca. 1 mile E of Coachella Canal and W of Melson Well. Comment
  RSA339677  Mentzelia involucrata var. megalantha Robert F. Thorne, C. W. Tilforth 1980-5-28 54215 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  RSA341994  Mentzelia involucrata var. megalantha Robert F. Thorne, C. W. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54057 Riverside Along Whitewater River, E of bridge and levee. Comment
  RSA342562  Mentzelia involucrata var. megalantha Robert F. Thorne, C. W. Tilforth 1980-5-28 54193 Riverside San Bernardino Mountains: Whitewater ridge above old bridge. Comment
  RSA440400  Mentzelia involucrata var. megalantha Robert Gustafson 1980-4-3 1521 Riverside Orocopia Mountains, about 6 miles east of Mecca along Box Canyon Road, south of the road 305 Comment
  RSA440401  Mentzelia involucrata var. megalantha P. J. Remple 1942-3-21 s.n. Riverside Whitewater Canyon. Foot of canyon side. Comment
  RSA440402  Mentzelia involucrata var. megalantha M. B. Dunkle 1933-5-6 3434 Riverside Painted Canyon Comment
  RSA440418  Mentzelia involucrata var. megalantha Elbert Benjamine 1929-4-7 126 Riverside Whitewater Canyon, Riverside County. Comment
  RSA440420  Mentzelia involucrata var. megalantha W. D. Pierce 1940-2-24 s.n. Riverside Painted Canyon, Orocopia Mts. Comment
  RSA440429  Mentzelia involucrata var. megalantha M. B. Dunkle 1935-4-17 4567 Imperial E of Beal Well Comment
  RSA440437  Mentzelia involucrata var. megalantha Christopher Davidson 1973-4-7 1926 San Bernardino Off Hwy 62, toward Yucca Valley, 6.2 miles east, above Morongo Valley. 884 Comment
  RSA444554  Mentzelia involucrata var. megalantha Walter Wisura 1988-3-1 4198 Riverside Colorado Desert. 4.7 miles from Interstate 10 along Box Canyon Road toward Mecca, in gravelly bajada. Comment
  RSA457790  Mentzelia involucrata var. megalantha Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, D. Nordin, Tim S. Ross 1988-3-10 2208 Riverside Sonoran (Colorado) Desert NW end McCoy Mtns, NW of Blackjack Mine. 400 Comment
  RSA480016  Mentzelia involucrata var. megalantha Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, D. Nordin, Tim S. Ross 1988-3-10 2139 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  RSA48411  Mentzelia involucrata var. megalantha E. K. Balls 1949-4-2 12896 Riverside Between Mecca and Mortmar on Hwy 111 -61 Comment
  RSA4894  Mentzelia involucrata var. megalantha Carl B. Wolf 1932-4-27 3010 Riverside Colorado Desert, 17 miles E of Mecca on the Blythe road. 152 Comment
  RSA49187  Mentzelia involucrata var. megalantha P. A. Munz 1949-4-12 13032 Riverside North base of Eagle Mts., Mojave Desert. 945 Comment
  RSA49364  Mentzelia involucrata var. megalantha P. A. Munz 1949-4-11 13001 Riverside Mojave Desert. Joshua Tree National Monument. Eastern end of Monument. 945 Comment
  RSA4941  Mentzelia involucrata var. megalantha Carl B. Wolf 1932-4-27 3056 Riverside North base of Chuckwalla Mountains, 5 miles East of Desert Center, Colorado Desert. 152 Comment
  RSA503389  Mentzelia involucrata var. megalantha Gary D. Wallace 1966-3-4 70 Riverside Along Dillon Rd. S slopes of the Little San Bernardino Mtns. 122 Comment
  RSA550272  Mentzelia involucrata var. megalantha Walter Wisura, John Dolan, M. Wall 1992-3-24 4624 Riverside 7.7 mi NE of Mecca on Box Canyon Rd. Comment
  RSA69581  Mentzelia involucrata var. megalantha F. W. Peirson 1933-4-15 10652 Riverside Whitewater River, 4.5 miles above the bridge. 701 Comment
  RSA69584  Mentzelia involucrata var. megalantha F. W. Peirson 1926-1-31 6494 Riverside Dos Palmas [Spring], Colorado Desert. Comment
  RSA78453  Mentzelia involucrata var. megalantha Verne Grant, Alva Grant 1952-4-1 17518 Riverside 9 miles E of Mecca Comment
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Dec 14 2011
  RSA80964  Mentzelia involucrata var. megalantha G. R. Campbell 1952-4-6 18413 Riverside 2 mi. s. of jct. of Cottonwood Springs road, road through Joshua Tree National Monument, south from 29 Palms. 884 Comment
  SBBG119962  Mentzelia involucrata var. megalantha J. Henrickson 1983-3-17 19310 B Unknown 6-9 rd mi W of San Felipe, Baja Calilfornia del Norte 60 Comment
  SDSU18211  Mentzelia involucrata var. megalantha Judy Newhauser, John Chesnut 1982-4-21 San Bernardino Emerson Wash, MCAGCC, Twentynine Palms, CA 877 Comment
  SEINET7048064  Mentzelia involucrata var. megalantha Steven R. Hill 2001-4-29 33541 Riverside Whitewater Canyon, east side of canyon, east of Whitewater Canyon Road, about 2 miles north of Route I-10. Elevation about 1800 feet. Comment
  SFV5018  Mentzelia involucrata var. megalantha F. M. Ball 1964-1-4 s. n. Riverside Open hillside at White Water, 16 miles east of Banning. 457 Comment
  UCD117238  Mentzelia involucrata var. megalantha P. C. Everett; E. K. Balls 1958-4-29 23016 Riverside U. S. Hwy 60/70, Indio to Blythe, 1 mile west of Cactus City. 548 Comment
  UCR123754  Mentzelia involucrata var. megalantha Steven R. Hill 2001-4-29 33541 Riverside Western Colorado Desert/ San Bernardino Mtns., E side of Whitewater Canyon along Whitewater River, east of Whitewater Canyon Road, about 2 mi north of Route I-10 549 Comment
  UCR269640  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa 2016-3-14 42183 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, along old Niland-Blythe Rd., at mouth of canyon below Lion Head Mtn. 276 Comment
  UCR269655  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa, Marc A. Baker, Michelle Cloud-Hughes 2016-3-15 42193 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, c. 0.8 km NE of Beal Well and c. 0-0.4 km east of old Niland-Blythe Rd. 442 Comment
  UCR269845  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa 2016-3-18 42377 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, along gasline road 21.5 km due north of Slab City/Camp Dunlap 538 Comment
  UCR279352  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa 2017-3-23 42932 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 2.3 miles east of Iris Pass 787 Comment
  UCR279423  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa 2017-3-26 43085 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, Rock Quarry in sec. 8, north of Frink, along dirt road above Siphon 17 of the Coachella Canal 122 Comment
  UCR279468  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa 2017-3-27 43098 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, canyon mouth 12 km NE (53 deg. ) of Bombay Beach, overlooking Frink and the Salton Sea 226 Comment
  UCR279554  Mentzelia involucrata var. megalantha A. C. Sanders, Jim Malusa 2017-3-29 43186 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, large canyon 2.8 km south of the confluence of Red Canyon and Salt Creek 460 Comment
  POM96068  Mentzelia involucrata var. megalantha P. A. Munz 1926-1-1 10819 Riverside Thousand Palms. Comment
  RSA0038375  Mentzelia involucrata var. megalantha Carol Haines 1964-3-22 s.n. San Bernardino 17 miles S. of Twentynine Palms. 914 Comment
  RSA0038376  Mentzelia involucrata var. megalantha A. Lee Haines 1974-4-8 s.n. Riverside North side of Orocopia Mountains. 396 Comment
  SEINET11978685  Mentzelia involucrata var. megalantha S. B. Parish, Parish, W. F. n d 210 Riverside Whitewater, Nich Comment



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