Search Results — 1442 specimen records retrieved (1353 records with coordinates)
Results for search: Scientific name=Ambrosia dumosa (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
  A414204  Ambrosia dumosa M. F. Spencer 1917-3-25 176 Unknown Coyote Wells, Colorado Desert Comment
  A414213  Ambrosia dumosa M. F. Spencer 1922-5-3 1966 Unknown In arenosis prope Barstow, Mohave Desert 975 Comment
  A414214  Ambrosia dumosa F. G. Woodcock 1922-04-01 - 1922-05-01 1894 Unknown Barstow, Mohave County Comment
  A414215  Ambrosia dumosa A. A. Heller 1905-4-24 7754 Unknown On the lower part of the mountain about three miles southwest of Mojave Comment
  A414216  Ambrosia dumosa M. E. Jones 1884-5-3 3806 Unknown The Needles Comment
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Apr 6 2018
  A414217  Ambrosia dumosa R. S. Ferris 1928-4-19 7109 Unknown 3 miles east of Coyote Wells on Dixieland Road Comment
  A414221  Ambrosia dumosa W. L. Jepson 1913-5-2 5366 Unknown Barstow, Mohave Desert 670 Comment
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Mar 6 2018
  A414222  Ambrosia dumosa F. G. Woodcock 1922-04-01 - 1922-05-01 1657 Unknown Palm Springs, Barstow washes Comment
  A414223  Ambrosia dumosa M. F. Spencer 1922-4-13 1963 Unknown Chino Canyon prope, Palm Springs, Colorado Desert 121 Comment
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Feb 2 2013
  A414224  Ambrosia dumosa I. Tidestrom 1819-5-29 9697 Unknown Barstow Comment
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Apr 5 2018
  A414225  Ambrosia dumosa C. C. Epling, L. C. Ellison & H. W. Anderson 1930-4-17 Unknown Ophir Mine Comment
  A414227  Ambrosia dumosa J. A. Kusche 1921-12-4 Unknown Needles Comment
  A414228  Ambrosia dumosa E. R. Kalmbach 1921-11-12 Unknown Calipatria Comment
  CAS-BOT-BC126770  Ambrosia dumosa Sarah J. De Groot; Tasha LaDoux 2003-5-20 2924 San Bernardino Whipple Mountains: Hills between War Eagle Mine and summit ridge 519 Comment
  CAS-BOT-BC126771  Ambrosia dumosa Sarah J. De Groot; Tasha LaDoux 2003-5-21 2989 San Bernardino Whipple Mountains: West side of range, along old Needles-Parker road 476 Comment
  CAS-BOT-BC133202  Ambrosia dumosa A. C. Sanders; A. Howald; Florence Caplow; et al 2010-5-4 38264 San Bernardino Eastern Mojave Desert: Ivanpah Valley, below Clark Mountain, 2.5 km WNW of Primm Valley Golf Club, 4.4 km W of I-15 883 Comment
  CAS-BOT-BC167162  Ambrosia dumosa Sarah J. DeGroot; Angela Gatto 2003-4-21 2588 San Bernardino Whipple Mountains: Bowman's Wash SE of Copper Basin near Colorado River Indian Reservation boundary 354 Comment
  CAS-BOT-BC167219  Ambrosia dumosa Sarah J. DeGroot; Angela Gatto 2003-4-20 2488 San Bernardino Whipple Mountains: Bluff northwest of Monument Peak, south side of Copper Basin. Saddle near summit 720 Comment
  CAS-BOT-BC16997  Ambrosia dumosa Donald W. Kyhos 1964-4-16 64 -32 San Bernardino Near road 3.5 miles south of headquarters of Joshua Tree National Monument in Twentynine Palms. Comment
  CAS-BOT-BC16998  Ambrosia dumosa Donald W. Kyhos 1964-4-17 64 -40 San Bernardino 1.1 miles south of the town of Joshua Tree, near the road to Joshua Tree National Monument. Comment
  CAS-BOT-BC16999  Ambrosia dumosa Donald W. Kyhos 1964-4-18 64 -88 San Bernardino 4.1 miles west of Twentynine Palms, near Twentynine Palms Highway. Comment
  CAS-BOT-BC17000  Ambrosia dumosa Donald W. Kyhos 1964-4-18 64 -89 San Bernardino 2.0 miles south of Twentynine Palms Highway near road to Joshua Tree National Monument. Comment
  CAS-BOT-BC17051  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -15 San Diego Summit of Yaqui Pass, Anza-Borrego Desert State Park. Comment
  CAS-BOT-BC17052  Ambrosia dumosa H. S. Gentry 1933-2-25 s.n. San Diego The Narrows, San Felipe Wash Comment
  CAS-BOT-BC17053  Ambrosia dumosa Alice Eastwood 1913-4-14 2772 San Diego San Felipe Wash, Colorado Desert Comment
  CAS-BOT-BC17054  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -11 San Diego State Highway 78, 15.4 miles west of junction with U.S. Highway 99, west of Ocotillo Wells. Comment
  CAS-BOT-BC17055  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -12 San Diego State Highway 78, 15.4 miles west of junction with U.S. Highway 99, west of Ocotillo Wells. Comment
  CAS-BOT-BC17056  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -10 San Diego State Highway 78, 10.3 miles west of junction with U.S. Highway 99, west of Ocotillo Wells. Comment
  CAS-BOT-BC17057  Ambrosia dumosa Alice Eastwood 1913-4-14 2730 San Diego Yaqui Wells, Colorado Desert Comment
  CAS-BOT-BC17058  Ambrosia dumosa C. L. Hitchcock 1966-3-17 24235 San Diego E. San Diego Co: 6 mi. w. of Ocotillo Well Comment
  CAS-BOT-BC17059  Ambrosia dumosa S. B. Parish; W. F. Parish 1880-3-1 624 San Diego Borders of Colorado Desert at Agua Caliente Comment
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Nov 2 2019
  CAS-BOT-BC17060  Ambrosia dumosa Edgar A. Mearns; L. Schoenfeldt 1894-5-12 3099 San Diego Mountain Spring Comment
  CAS-BOT-BC17061  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -14 San Diego State Highway 78, 25.5 miles west of junction with U.S. Highway 99, near San Felipe Creek. Comment
  CAS-BOT-BC172857  Ambrosia dumosa E. J. Lawlor 1988-3-29 124 San Bernardino Mojave Desert: NE edge of Danby Dry Lake at intersection of Cadiz Road with southern powerline road 198 Comment
  CAS-BOT-BC172858  Ambrosia dumosa Sarah J. De Groot 2004-3-29 3886 San Bernardino Whipple Mountains: South side of range, road past Vista Peak, near Highway 62 218 Comment
  CAS-BOT-BC172859  Ambrosia dumosa Sarah J. De Groot; J. Mark Porter 2003-9-28 3224 San Bernardino Whipple Mountains: Along Highway 95 between Vidal Junction and Vidal 239 Comment
  CAS-BOT-BC172860  Ambrosia dumosa Sarah J. De Groot; J. Mark Porter; Lauren Machen 2003-10-9 3255 San Bernardino Whipple Mountains: Wash beside Atchison, Topeka, and Santa Fe Railroad tracks, just E of Vidal and Highway 95 176 Comment
  CAS-BOT-BC173234  Ambrosia dumosa Sarah J. De Groot; J. Mark Porter; Naomi Fraga; Lauren Machen 2003-5-4 2786 San Bernardino Whipple Mountains: South side of range, along Colorado River aqueduct W of Chamber's Well road 285 Comment
  CAS-BOT-BC174345  Ambrosia dumosa Sarah J. DeGroot; Lee DeGroot 2003-4-5 2272 San Bernardino Whipple Mountains: Dirt road heading N from highway 62 about 9 miles east of Vidal Junction and west of Earp, vicinity of Vista Peak 231 Comment
  CAS-BOT-BC174346  Ambrosia dumosa Sarah J. DeGroot; Lee DeGroot 2003-4-5 2192 San Bernardino Whipple Mountains: Wash along highway 95 about 6 miles N of Vidal Junction, W of Savahia Peak 358 Comment
  CAS-BOT-BC174648  Ambrosia dumosa Sarah J. DeGroot; J. Mark Porter 2003-3-18 1516 San Bernardino Whipple Mountains: Along old Needles-Parker road between highway 62 and Colorado River aqueduct 244 Comment
  CAS-BOT-BC174649  Ambrosia dumosa Sarah J. DeGroot; J. Mark Porter 2003-3-19 1734 San Bernardino Whipple Mountains: Along Highway 95 just north of Vidal 112 Comment
  CAS-BOT-BC174653  Ambrosia dumosa Sarah J. DeGroot; Lee DeGroot 2003-4-5 2209 San Bernardino Whipple Mountains: Chemehuevi Wash at junction with highway 95, north of Vidal Junction 335 Comment
  CAS-BOT-BC174768  Ambrosia dumosa Sarah J. DeGroot; Michael Denslow 2003-3-19 1781 San Bernardino Whipple Mountains: Wash near intersection of Highway 95 and East Mojave Heritage Trail, west of Pyramid Butte 405 Comment
  CAS-BOT-BC176686  Ambrosia dumosa Sarah J. De Groot; J. Mark Porter; Naomi Fraga; Lauren Machen 2003-5-3 2703 San Bernardino Whipple Mountains: S/SE side along aqueduct road, SW of Bowman's wash 298 Comment
  CAS-BOT-BC177142  Ambrosia dumosa Sarah J. DeGroot; Angela Gatto; Chris Stevenson; Constance Baldwin 2003-4-19 2394 San Bernardino Whipple Mountains: Canyon on NE side of mountains, off powerline road 287 Comment
  CAS-BOT-BC177402  Ambrosia dumosa Sarah J. DeGroot; Angela Gatto 2003-4-20 2454 San Bernardino Whipple Mountains: Old road heading west from Copper Basin, off Bowman's wash road 421 Comment
  CAS-BOT-BC183865  Ambrosia dumosa Sarah J. De Groot; Leland Lubinsky 2004-10-18 4574 San Bernardino Whipple Mountains: South Fork of Whipple Wash, about 1 mile above intersection with north fork 463 Comment
  CAS-BOT-BC209897  Ambrosia dumosa James R. Shevock 1982-5-14 9465 Kern Eastern slope of the Southern Sierra Nevada. Eastern base of the Scodie Mountains. Along dirt road paralleling the L.A. Aqueduct near Freeman Wash 1036 Comment
  CAS-BOT-BC22326  Ambrosia dumosa Sarah J. De Groot; T. LaDoux 2003-5-21 2969 San Bernardino Whipple Mountains: North side of range, along road past War Eagle mine. 416 Comment
  CAS-BOT-BC22351  Ambrosia dumosa Alice Eastwood 1931-4-13 s.n. San Bernardino Barstow Comment
  CAS-BOT-BC22352  Ambrosia dumosa J. H. Thomas 1966-12-15 12396 San Bernardino 5.9 miles NW of Needles as measured along the highway (#66) or 2.1 miles E of junction of highways 66 and 95 152 Comment
  CAS-BOT-BC22353  Ambrosia dumosa J. H. Thomas 1957-4-6 6595 B San Bernardino Mojave Desert. About 2 miles north of Indian Cove, Joshua Tree National Monument. 822 Comment
  CAS-BOT-BC22354  Ambrosia dumosa J. H. Thomas 1957-4-6 6642 San Bernardino Mojave Desert. 1.4 miles north of Yucca Valley on raod to Lucerne Valley. 914 Comment
  CAS-BOT-BC22355  Ambrosia dumosa W. R. O 1973-9-23 0422 San Bernardino Rice Airfield. Alternate Power Plant site and transmission corridor Comment
  CAS-BOT-BC22356  Ambrosia dumosa M. Bourell 1987-4-29 3287 San Bernardino Soda Lake Desert Research Station. Zzyzx, ca 4 mi S of Baker Comment
  CAS-BOT-BC22357  Ambrosia dumosa T. Winfield 1975-4-27 2406 San Bernardino Hiway 62 Riverside County Line Comment
  CAS-BOT-BC22358  Ambrosia dumosa Marcus E. Jones 1884-5-3 3806 San Bernardino The Needles Comment
  CAS-BOT-BC22359  Ambrosia dumosa John August Kusche 1921-12-4 s.n. San Bernardino Needles Comment
  CAS-BOT-BC22360  Ambrosia dumosa J. T. Howell 1927-6-12 2505 San Bernardino Deadman's Point, Mojave Desert 914 Comment
  CAS-BOT-BC22361  Ambrosia dumosa Marcus E. Jones 1884-5-3 3806 San Bernardino The Needles Comment
  CAS-BOT-BC22362  Ambrosia dumosa P. A. Munz; Robert Daniel Harwood 1920-4-1 3629 San Bernardino Needles Comment
  CAS-BOT-BC22363  Ambrosia dumosa Annie M. Alexander; L. Kellogg 1940-4-25 1218 San Bernardino Hanging over bank....Canyon on north side of Whipple Mountains 304 Comment
  CAS-BOT-BC22364  Ambrosia dumosa R. S. Ferris 1930-6-14 8009 San Bernardino Along the Mojave River below Daggett 304 Comment
  CAS-BOT-BC22366  Ambrosia dumosa E. C. Twisselmann 1958-10-31 4945 San Bernardino Kramer's Corners 762 Comment
  CAS-BOT-BC22367  Ambrosia dumosa E. C. Twisselmann 1969-6-4 15594 San Bernardino South side of Harper Dry Lake 670 Comment
  CAS-BOT-BC22368  Ambrosia dumosa E. C. Twisselmann 1958-10-31 4945 San Bernardino Kramer's Corner 762 Comment
  CAS-BOT-BC22369  Ambrosia dumosa P. H. Raven 1958-3-30 12036 Inyo along road 2.5 miles southwest of Hole-in-the-Rock Spring, Grapevine Mountains, Death Valley National Monument Comment
  CAS-BOT-BC22370  Ambrosia dumosa E. C. Twisselmann 1958-5-6 4403 San Bernardino Trona Road, 2 miles east of Searles Station, 1021 Comment
  CAS-BOT-BC22371  Ambrosia dumosa E. C. Twisselmann 1958-5-6 4403 San Bernardino Trona Road, 2 miles east of Searles Station, 1021 Comment
  CAS-BOT-BC22372  Ambrosia dumosa Cecil Hart 1922-5-13 13 San Bernardino between Barstow and Victorville Comment
  CAS-BOT-BC22373  Ambrosia dumosa Cecil Hart 1922-5-13 13 San Bernardino Calico Mts. Comment
  CAS-BOT-BC22374  Ambrosia dumosa E. C. Twisselmann 1969-6-4 15594 San Bernardino South side of Harper Dry Lake 670 Comment
  CAS-BOT-BC22375  Ambrosia dumosa S. Castagnoli; Gregory Clark de Nevers; R. D. Stone 1980-4-27 86 San Bernardino Smith Mine, Kingston Range 975 Comment
  CAS-BOT-BC22376  Ambrosia dumosa Brandegee s.n. San Bernardino Mojave Desert Comment
  CAS-BOT-BC22377  Ambrosia dumosa I. Johnston 1917-4-4 1034 Riverside Mouth of Andreas Canyon 243 Comment
  CAS-BOT-BC22378  Ambrosia dumosa M. E. Jones 1906-4-19 s.n. San Diego Choia (sic) Ranch 609 Comment
  CAS-BOT-BC22379  Ambrosia dumosa C. L. Hitchcock; C. V. Muhlick 1964-3-19 23145 Imperial 8 miles s. of Ocotillo Spring on road to Fish Creek Comment
  CAS-BOT-BC22380  Ambrosia dumosa L. R. Abrams 1941-4-23 13916 Imperial U.S. Highway 99, 18 miles north of junction with Route 78 Comment
  CAS-BOT-BC22381  Ambrosia dumosa I. L. Wiggins 1941-3-25 9622 Imperial Desert bajada 8.7 miles northeast of Niland on road to Beal Well and Blythe Comment
  CAS-BOT-BC22382  Ambrosia dumosa Howard E. McMinn 1924-7-5 1257 Riverside Oasis to Indio - Col(orado) Desert Comment
  CAS-BOT-BC22383  Ambrosia dumosa Howard E. McMinn 1925-7-1 1488 Imperial 2 1/2 miles N.W. Westmoreland on the Col(orado) Desert Comment
  CAS-BOT-BC22384  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -8 Imperial Wash of San Felipe Creek near State Highway 78 0.3 mile west of junction with U.S. Highway 99 Comment
  CAS-BOT-BC22385  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -7 Imperial Along U.S. Highway 99 1 mile south of Salton City, near west shore of the Salton Sea. Comment
  CAS-BOT-BC22386  Ambrosia dumosa Donald W. Kyhos 1964-2-23 64 -7 Imperial Near U.S. Highway 80, 0.9 miles east of its junction with State Highway 98, east of Holtville Comment
  CAS-BOT-BC22387  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -16 Imperial West edge of Salton Sea at turnoff to Sundial, 3.5 miles southeast of Riverside County line, along US Hwy 99 Comment
  CAS-BOT-BC22388  Ambrosia dumosa P. H. Raven 1960-3-16 14842 Imperial 4 miles south of Palo Verde Comment
  CAS-BOT-BC22389  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -9 Imperial State Highway 78, 5.8 miles west of junction with U.S. Highway 99 Comment
  CAS-BOT-BC22390  Ambrosia dumosa N. H. Holmgren; P. Holmgren 1974-3-28 7527 Imperial Jacumba Mountains, 3 airline miles southwest of Ocotillo 274 Comment
  CAS-BOT-BC22392  Ambrosia dumosa E. A. McGregor 1917-4-1 825 Imperial between Coyote Wells and Cement Bridge Comment
  CAS-BOT-BC22393  Ambrosia dumosa C. B. Wolf 1931-3-14 1890 Imperial 5 miles west of Coyote Wells on road to Mountain Springs, Colorado Desert 152 Comment
  CAS-BOT-BC22394  Ambrosia dumosa R. S. Ferris 1928-4-19 1109 Imperial 3 miles east of Coyote Wells on the Dixieland Road Comment
  CAS-BOT-BC22395  Ambrosia dumosa P. A. Munz; Street; Williams 1919-3-26 2352 Imperial near Salton Sea -45 Comment
  CAS-BOT-BC22396  Ambrosia dumosa George H. Mallory 1920-5-12 s.n. Imperial 5 mi south of Ogilby at side of R.R. track near arroyo Comment
  CAS-BOT-BC22397  Ambrosia dumosa C. B. Wolf 1931-3-14 1890 Imperial 5 miles west of Coyote Wells on road to Mountain Springs, Colorado Desert 152 Comment
  CAS-BOT-BC22398  Ambrosia dumosa Alice Eastwood 1916-6-23 5963 San Bernardino Needles Comment
  CAS-BOT-BC22399  Ambrosia dumosa Alice Eastwood 1931-4-23 18252 San Bernardino Needles Comment
  CAS-BOT-BC22400  Ambrosia dumosa Alice Eastwood 1931-6-17 s.n. San Bernardino Searles Lake Comment
  CAS-BOT-BC22577  Ambrosia dumosa Joseph Andorfer Ewan 1932-4-8 7029 Riverside Seven Palms near Garnet, Colorado Desert Comment
  CAS-BOT-BC22578  Ambrosia dumosa Joseph Andorfer Ewan 1932-4-8 7029 Riverside Seven Palms near Garnet, Colorado Desert Comment
  CAS-BOT-BC22579  Ambrosia dumosa Aven Nelson; Ruth Ashton Nelson 1939-3-30 3340 Riverside On highway 60, near Desrt Center Comment
  CAS-BOT-BC22580  Ambrosia dumosa Marcus E. Jones 1929-9-16 25074 Riverside E of Desert Center Comment
  CAS-BOT-BC22581  Ambrosia dumosa H. M. Hall 1905-4-1 5907 Riverside Near Mule Springs Comment
  CAS-BOT-BC22582  Ambrosia dumosa Donald W. Kyhos 1960-3-19 60 -6 Riverside Dillon Road 5 miles north of junction with US Highway 99 near Indio Comment
  CAS-BOT-BC22583  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -17 Riverside Whitewater Canyon Comment
  CAS-BOT-BC22584  Ambrosia dumosa Aven Nelson; Ruth Ashton Nelson 1939-3-28 3297 Riverside Near the north end of Salton Sea, highway 111 Comment
  CAS-BOT-BC22585  Ambrosia dumosa F. H. Billings 1926-2-6 23 a Riverside near Palm Springs Comment
  CAS-BOT-BC22586  Ambrosia dumosa Ernest C. Twisselmann 1969-5-21 15338 Kern Red Rock Canyon, head of creek west of the Freeway Bridge 784 Comment
  CAS-BOT-BC22587  Ambrosia dumosa Ernest C. Twisselmann 1956-4-20 2686 Kern Tehachapi-Kernville region. Jawbone Canyon. 707 Comment
  CAS-BOT-BC22588  Ambrosia dumosa Ernest C. Twisselmann 1958-11-1 4932 Kern Mohave-Randsburg region. Last Chance Canyon flood plain, above Koehn Lake. 594 Comment
  CAS-BOT-BC22589  Ambrosia dumosa Ernest C. Twisselmann 1962-5-7 7070 Kern Mohave Desert. Rademacher Hills: summit of highway 395. 967 Comment
  CAS-BOT-BC22590  Ambrosia dumosa A. A. Heller 1905-4-24 7754 Kern Mojave Comment
  CAS-BOT-BC22591  Ambrosia dumosa Lyman Benson 1932-5-7 3525 Kern Dry lake SE of Red Rock Canyon. Rand Mountain Range. Mojave Desert. 731 Comment
  CAS-BOT-BC22592  Ambrosia dumosa P. A. Munz; L. Street 1919-5-7 2733 Riverside Palm Springs 198 Comment
  CAS-BOT-BC22593  Ambrosia dumosa William S. Davis 1960-3-12 102 Riverside Box Canyon, 7.7 miles W of Junction with US Highway 60-70. Comment
  CAS-BOT-BC22594  Ambrosia dumosa M. McCollum 1976-6-10 2008 Riverside 4 mi. W of Desert Hot Springs 304 Comment
  CAS-BOT-BC22595  Ambrosia dumosa George B. Grant 6729 Riverside Palm Springs Comment
  CAS-BOT-BC22596  Ambrosia dumosa Lewis S. Rose 1957-1-9 57020 Riverside Palm Desert 91 Comment
  CAS-BOT-BC22597  Ambrosia dumosa Roxana S. Ferris 1918-6-17 1002 Riverside 5 miles E of Gruendikes Well on Mecca-Blythe Road Comment
  CAS-BOT-BC22598  Ambrosia dumosa Roxana S. Ferris 1918-6-17 1002 Riverside 5 miles E of Gruendikes Well on Mecca-Blythe Road Comment
  CAS-BOT-BC22599  Ambrosia dumosa C. L. Hitchcock 1940-3-29 5860 Riverside Cottonwood Canyon, ca. 100 yards E of spring Comment
  CAS-BOT-BC22600  Ambrosia dumosa P. H. Raven 1960-3-16 14843 Riverside 2.2 miles W of Desert Center Comment
  CAS-BOT-BC22601  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -328 Riverside Joshua Tree National Monument: about 2 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22602  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -329 Riverside Joshua Tree National Monument: about 3 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22603  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -330 Riverside Joshua Tree National Monument: about 3 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22604  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -331 Riverside Joshua Tree National Monument: about 4 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22605  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -332 Riverside Joshua Tree National Monument: about 4 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22606  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -333 Riverside Joshua Tree National Monument: about 6 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22607  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -334 Riverside Joshua Tree National Monument: about 6 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22608  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -335 Riverside Joshua Tree National Monument: about 7 mi S of Entrance to Cottonwood Springs Campground Comment
  CAS-BOT-BC22609  Ambrosia dumosa J. T. Howell 1928-3-25 3538 Riverside Painted Canon [Canyon], Colorado Desert Comment
  CAS-BOT-BC22610  Ambrosia dumosa Samuel B. Parish 1907-4-23 6092 Riverside Palm Springs, Colorado Desert Comment
  CAS-BOT-BC22611  Ambrosia dumosa Alice Eastwood 1913-4-30 2990 Riverside Palm Springs Comment
  CAS-BOT-BC22612  Ambrosia dumosa P. H. Raven 1958-1-24 11463 Riverside Fargo Canyon Comment
  CAS-BOT-BC22613  Ambrosia dumosa R. F. Hoover 1969-4-11 11219 Riverside Mouth of Morongo Valley Canyon Comment
  CAS-BOT-BC22614  Ambrosia dumosa Javier Penalosa 1963-4-10 2782 Riverside Deep Canyon, 3 mi. S of Palm Desert. 213 Comment
  CAS-BOT-BC22615  Ambrosia dumosa W. R. Dudley 1903-12-26 s.n. Riverside Palm Canyon Comment
  CAS-BOT-BC22616  Ambrosia dumosa Ira L. Wiggins 1941-3-24 9575 Riverside Along eastern side of the Salton Sea, 2.7 miles S of Mortmar Comment
  CAS-BOT-BC22617  Ambrosia dumosa B. D. Stark 1941-3-24 1492 Riverside San Gorgonio Pass 457 Comment
  CAS-BOT-BC22618  Ambrosia dumosa Steve Boyd 2007-11-1 11818 San Bernardino Orange Blossum wash area, central portion of Bristol Mtns, W and N end of Marble Mtns, W of Kelbaker Rd, S of I-40 732 Comment
  CAS-BOT-BC22620  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -317 San Bernardino Just inside north boundary of Joshua Tree National Monument on road from Twentynine Palms to Cottonwood Springs Comment
  CAS-BOT-BC22621  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -318 San Bernardino Just inside north boundary of Joshua Tree National Monument on road from Twentynine Palms to Cottonwood Springs Comment
  CAS-BOT-BC22622  Ambrosia dumosa S. Smith-White; A. Johnson 1963-4-12 63 -320 San Bernardino Just inside north boundary of Joshua Tree National Monument on road from Twentynine Palms to Cottonwood Springs Comment
  CAS-BOT-BC22623  Ambrosia dumosa S. Smith-White; A. Johnson 1963-5-1 63 -400 San Bernardino 2 miles east of Barstow on US Highway 66. Comment
  CAS-BOT-BC22624  Ambrosia dumosa S. Smith-White; A. Johnson 1963-5-1 63 -402 San Bernardino 2 miles east of Barstow on US Highway 66. Comment
  CAS-BOT-BC22625  Ambrosia dumosa S. Smith-White; A. Johnson 1963-5-1 63 -404 San Bernardino 2 miles east of Barstow on US Highway 66. Comment
  CAS-BOT-BC227714  Ambrosia dumosa Sarah J. De Groot; J. Mark Porter; Naomi Fraga 2003-5-4 2851 San Bernardino Whipple Mountains: West slope at north end of Savahia Peak, mid to low elevation 530 Comment
  CAS-BOT-BC30816  Ambrosia dumosa Javier Penalosa 1960-4-10 473 Kern E. Fork Last Chance Canyon, El Paso Mtns. 914 Comment
  CAS-BOT-BC30817  Ambrosia dumosa Saichi Kawahara 1968-4-10 164 Kern Between Four Corners and Randsburg at P.G.&E. access road Comment
  CAS-BOT-BC30818  Ambrosia dumosa E. R. Blakley 1958-5-10 2298 Kern Five miles south of Mojave 853 Comment
  CAS-BOT-BC30819  Ambrosia dumosa Ernest C. Twisselmann 1969-5-21 15334 Kern Ridge east of the Freeway bridge. 777 Comment
  CAS-BOT-BC30820  Ambrosia dumosa Donald W. Kyhos 1964-4-18 64 -90 San Bernardino 6.9 miles south of Twentynine Palms Highway near road to Joshua Tree National Monument. Comment
  CAS-BOT-BC30821  Ambrosia dumosa Donald W. Kyhos 1964-4-18 64 -91 San Bernardino 6.9 miles south of Twentynine Palms Highway near road to Joshua Tree National Monument. Comment
  CAS-BOT-BC30822  Ambrosia dumosa Ethel H. Campbell 1921-5-1 40 San Diego Between Jacumba & Mountain Springs, east side of pass. Comment
  CAS-BOT-BC30823  Ambrosia dumosa Peter H. Raven 1960-3-18 14848 San Diego Coyote Creek 4.5 miles north of Borrego Spring Comment
  CAS-BOT-BC30824  Ambrosia dumosa LeRoy Abrams 1903-4-2 3179 San Diego Signal mountain, Colorado desert Comment
  CAS-BOT-BC30825  Ambrosia dumosa Donald W. Kyhos 1960-3-26 60 -13 San Diego State Highway 78, 20.4 miles west of junction with U.S. Highway 99, near San Felipe Creek. Comment
  CAS-BOT-BC35076  Ambrosia dumosa Alice Eastwood 1913-5-12 3219 Kern Mojave Comment
  CAS-BOT-BC35077  Ambrosia dumosa J. Penalosa 1960-4-13 591 Kern Iron Canyon, El Paso Mountains 1005 Comment
  CAS-BOT-BC35078  Ambrosia dumosa LeRoy Abrams 1927-5-1 11832 Kern Mojave - Owens Valley Road Comment
  CAS-BOT-BC35079  Ambrosia dumosa W. R. Dudley 1895-7-1 522 Kern Mojave Comment
  CAS-BOT-BC35080  Ambrosia dumosa John Thomas Howell 1930-5-13 4970 Kern Red Rock Canyon Comment
  CAS-BOT-BC35081  Ambrosia dumosa James R. Shevock 1980-5-17 7232 Kern east base of Scodie mountains Comment
  CAS-BOT-BC35082  Ambrosia dumosa Ernest Christian Twisselmann 1958-11-1 4932 Kern Last Chance Canyon flood plain, above Koehn Lake Comment
  CAS-BOT-BC35084  Ambrosia dumosa Ernest Christian Twisselmann 1956-4-20 2686 Kern Jawbone Canyon 784 Comment
  CAS-BOT-BC35101  Ambrosia dumosa R. R. Halse 1978-3-27 1726 Inyo Along State Hwy. 190, 4.6 miles east of Panamint Springs, Panamint Valley 470 Comment
  CAS-BOT-BC35102  Ambrosia dumosa C. L. Hitchcock 1940-4-30 6238 Inyo 4 miles west of Lone Pine Comment
  CAS-BOT-BC35103  Ambrosia dumosa John Thomas Howell 1958-5-23 33233 Inyo Alabama Hills 1463 Comment
  CAS-BOT-BC35104  Ambrosia dumosa Percy Train 1937-4-2 s.n. Inyo West side Panamint Valley near Ballarat 457 Comment
  CAS-BOT-BC35105  Ambrosia dumosa Roxana S. Ferris; F. Murray Scott; Rimo Bacigalupi 1924-3-17 3938 Inyo base of grade (Slate Range) in Panamint Valley on Trona-Ballarat Road Comment
  CAS-BOT-BC35106  Ambrosia dumosa P. Monnet 1916-4-1 1158 Inyo Boundary Canyon, Grapevine Range 1219 Comment
  CAS-BOT-BC35107  Ambrosia dumosa Roxana S. Ferris; F. Murray Scott; Rimo Bacigalupi 1924-3-17 4029 Inyo 8 mi. from Dutch Valley junction, west on Ryan Road Comment
  CAS-BOT-BC35108  Ambrosia dumosa William Hillman Shockley 1908-1-1 s.n. Inyo Ryan on Tonopah & Tidewater R.R. Comment
  CAS-BOT-BC35109  Ambrosia dumosa J. H. Thomas; H. A. Thomas 1954-3-21 420 Inyo Death Valley National Monument, between Tin Mountain and Grape Vine Mountains 228 Comment
  CAS-BOT-BC35110  Ambrosia dumosa Ralph Wells; Florence Wells 1957-10-21 s.n. Inyo Death Valley National Monument, Rhodes Wash 365 Comment
  CAS-BOT-BC35141  Ambrosia dumosa John Thomas Howell 1928-4-3 3687 Inyo Emigrant Wash 548 Comment
  CAS-BOT-BC35142  Ambrosia dumosa T. Storer 1917-5-12 s.n. Inyo near Shoshone Comment
  CAS-BOT-BC35143  Ambrosia dumosa Mark Kerr 1939-5-6 s.n. Inyo E. of Kearsarge RR Station 1219 Comment
  CAS-BOT-BC35144  Ambrosia dumosa Mark Kerr 1937-5-1 s.n. Inyo Jail Canyon, Panamint Range 762 Comment
  CAS-BOT-BC35146  Ambrosia dumosa Saichi Kawahara 1968-4-11 211 Inyo Panamint Valley, west of Death Valley National Park Comment
  CAS-BOT-BC35147  Ambrosia dumosa N. H. Holmgren; P. K. Holmgren 1973-3-16 6324 Inyo Death Valley, foot of Grapevine Mountains, near fork of Beatty road, 18.5 airline miles NNW of Monument Hdqtrs. 609 Comment
  CAS-BOT-BC35148  Ambrosia dumosa Ira L. Wiggins 1972-3-27 21770 Inyo Above Chris Wycht Camp, Surprise Canyon Comment
  CAS-BOT-BC35149  Ambrosia dumosa H. Mooney; J. St. Andre; R. Wright 1962-6-13 780 Inyo White Mountains, west base of Westgard Road 1524 Comment
  CAS-BOT-BC35150  Ambrosia dumosa Marcus E. Jones 1962-6-13 780 Inyo Pleasant Canyon, Panamint Mountains 1676 Comment
  CAS-BOT-BC35199  Ambrosia dumosa Ernest Christian Twisselmann 1962-5-7 7070 Kern Mojave Desert, Rademacher Hills: summit of Highway 395 967 Comment
  CAS-BOT-BC35200  Ambrosia dumosa Ernest Christian Twisselmann 1969-5-21 15334 Kern Ridge east of Freeway bridge. 777 Comment
  CDA21295  Ambrosia dumosa A. R. Cline 2007-12-13 s.n. Imperial Algadones Dunes; 6-7 mi W of Glamis off Hwy 78. 39 Comment
  CDA22498  Ambrosia dumosa Gillian Watson 2008-3-2 CA 2 Imperial 5 miles W of El Centro, 1/2 mile S of Hwy 8. 0 Comment
  CDA9976  Ambrosia dumosa A. C. Browne 1957-4-6 s.n. Riverside 6 miles east of Indio. 0 Comment
  CDA9977  Ambrosia dumosa T. C. Fuller 1962-4-4 8112 Imperial Highway 80 to Jacumba, 6.2 miles west of Ocotillo. 0 Comment
  CDA9981  Ambrosia dumosa A. R. Cline 2007-12-13 s.n. Imperial 6-7 miles west of Glamis off Highway 78. Comment
  CDA9982  Ambrosia dumosa T. C. Fuller 1961-10-19 7271 San Bernardino Barstow Road, 6.6 miles north of Lucerne Valley. 0 Comment
  CDA9983  Ambrosia dumosa C. R. Tower Jun 1953 Riverside East of Desert Center. 0 Comment
  CDA9984  Ambrosia dumosa A. C. Browne 1957-4-21 San Bernardino Mule Canyon, Yermo. 0 Comment
  CDA9985  Ambrosia dumosa T. C. Fuller 1962-5-8 8414 San Bernardino Highway 91, 1.4 miles northeast of Barstow. 0 Comment
  CHSC100711  Ambrosia dumosa Naomi Fraga; Genie Fraga 2003-4-12 551 Kern Sierra Nevada; Southern Sierra Nevada region: The Owens Peak Eastern Watershed. Five Fingers, near aqueduct road. Steep east facing slope. 1159 Comment
  CHSC13842  Ambrosia dumosa V. S. Jackson 1973-4-20 Inyo Locally abundant 9 mi N of turnoff to Scotty's castle in northern portion of Death Valley. 1066 Comment
  CHSC20152  Ambrosia dumosa J. H. Moyer 1975-3-26 4 San Diego Small population 9.6 km SE of Borrego Springs along Borrego Springs Road. 50 Comment
  CHSC26530  Ambrosia dumosa James Henrickson 1970-4-11 4542 San Diego 8 air miles SSE of Borrego Springs near summit of Yaqui Pass in lateral canyon near Co. Hy. S3. 524 Comment
  CHSC30425  Ambrosia dumosa Jeffrey M. Lund 1980-3-31 41 San Diego At the Elephant Tree Monument in Anza-Borrego Desert Park. 121 Comment
  CHSC35351  Ambrosia dumosa James Henrickson 1973-3-18 8640 b San Diego 10 miles NW of Borrego Springs at trail end near Salvidore Canyon. 548 Comment
  CHSC39216  Ambrosia dumosa M. S. Taylor 1983-4-6 5262 San Bernardino Around KOA Campground, N end of Needles. Comment
  CHSC8082  Ambrosia dumosa Edward L. Smith 1957-4-3 264 Riverside Located 1 mi. N of 29 Palms, Calif on Hwy. 99. San Bernadino Mtns. 91 Comment
  CHSC8372  Ambrosia dumosa Edward L. Smith 1957-11-3 287 Inyo Located S end of Death Valley at Amargosa Chaos off hwy. 202. Amargosa Mts. 609 Comment
  CHSC842  Ambrosia dumosa D. Greene 1949-4-12 San Bernardino 8 mi. S. Dagget. Comment
  CHSC95389  Ambrosia dumosa C. Spurrier; Way, M. J. 2001-6-14 6 Riverside Riverside County. Big Morongo Canyon Preserve, Kickapoo trail, 5.6 km north of State Water Company Entrance. 595 Comment
  CHSC95896  Ambrosia dumosa LeRoy Gross 2005-4-25 2052 San Bernardino Mojave Desert; North Mojave Desert region: southwest end of the Lava Mountains, north of Red Mountains, east of Trona Road. Side road off Steam Well Road (RM1444) to Skilling Well. Road ends near mines. General collecting along the lower ridge that climbs toward Klinker Mtn. Than returned down a small draw to to the west of theis ridge. Gentle slopes at base, steeper the farther you climb, with some volanic outcrops. Near 35.39090N, 117.56767W to 35.39745N, 117.56570W. 1113 Comment
  CHSC98016  Ambrosia dumosa LeRoy Gross; Amber Maurice 2005-3-17 1727 San Bernardino Mojave Desert; Southcentral Mojave Desert region: Southeast end of the Bristol Mountains; west off Kelbaker Road, followed a dirt road going to an antenna station on top of the mountain, stopped at base of mountain where the road was gated. Area near a place called 'Windy Point.' General collecting in canyon bottom and slope to the west of gate. Near 34.61232N, 115.68189W to 34.60943N, 115.68508W. Alt: 552-611m. 552 Comment
  CHSC98019  Ambrosia dumosa LeRoy Gross 2005-3-3 1602 Riverside Colorado Desert; Northeastern Colorado Desert region: Palen Mountains, south side. Near end of old prospect road. Near 33.71244N, 115.11171W to 33.72053N, 115.11051W. Alt: 207-244m. 207 Comment
  CHSC98218  Ambrosia dumosa Naomi Fraga; Genie Fraga 2003-4-12 551 Kern Sierra Nevada; southern Sierra Nevada region: Owens Peak eastern watershed. Five Fingers, near aqueduct road Steep east-facing slope. 1159 Comment
  CHSC99181  Ambrosia dumosa LeRoy Gross 2005-4-12 1861 San Bernardino Mojave Desert; Southcentral Mojave Desert region: Marble Mountains; north of gas line road (mile 69), south of Highway 40, east of Kelbaker Road. General collecting from low hills north up near a rocky cliff, then west northeast into a canyon bottom that I followed into the mountains a short distance. Started near 34.70550N, 115.65803W, to 34.71096N, 115.65477W. Growing on gentle slope. 873 Comment
  CLARK-A1528-1079  Ambrosia dumosa Cameron Duncan 1966-4-8 San Diego Anza-Borrego Desert State Park 457 Comment
  CLARK-A1528-1082  Ambrosia dumosa N. J. Chatterton 1966-4-26 F- 3 San Bernardino Comment
  CLARK-A1528-1535  Ambrosia dumosa John C. Roos 1937-4-18 1349 Riverside Snow Creek Comment
  CLARK-A1528-162  Ambrosia dumosa Carol J. Harker 1969-5-21 27 San Bernardino Hesperia 1142 Comment
  CLARK-A1528-163  Ambrosia dumosa Sally Bell 1964-3-24 Riverside Thousand Palms 60 Comment
  CLARK-A1528-2195  Ambrosia dumosa N. J. Chatterton 1966-4-26 F- 3 San Bernardino Comment
  CLARK-A1528-4996  Ambrosia dumosa John C. Roos 1948-4-24 3796 Riverside Whitewater Comment
  CLARK-A1528-5217  Ambrosia dumosa John C. Roos 1937-4-28 766 Riverside Hayfield Comment
  CSUSB1473  Ambrosia dumosa Phil Lindeman 1969-5-15 S. N. San Bernardino Desert Lucerne Valley turnoff 1 mile from U. S. route 66 Comment
  CSUSB1474  Ambrosia dumosa Schreiner 1973-6-26 S. N. San Bernardino BUSD, Barstow. Desert Research Station. 670 Comment
  GH387428  Ambrosia dumosa D. H. Goldman 2005-3-3 3031 Unknown Box Canyon, along the W. side of Box Canyon Road, around 10mi SW of the intersection with Interstate 10 and around 0.7mi SE of Blake Hill 268 Comment
  GH414200  Ambrosia dumosa L. S. Rose 1938-2-4 38047 Unknown Plaster City Comment
  GH414201  Ambrosia dumosa W. B. Brierly 1969-4-27 Unknown Naval Weapons Ctr., China Lake Comment
  GH414203  Ambrosia dumosa J. D. Morefield & D. H. McCarty 1986-5-4 3575 Unknown Just NE of warm springs at W base of Black Mountain, 24 mi. N85W of its summit, T8S R34E S8, White Mountains 1249 Comment
  GH414205  Ambrosia dumosa D. W. Kyhos 1958-2-15 58 -11 Unknown Corn Springs Comment
  GH414206  Ambrosia dumosa R. S. Ferris 1930-6-14 8009 Unknown Along the Mojave River below Daggett Comment
  GH414207  Ambrosia dumosa I. W. Clokey 1935-4-17 6729 Unknown Mecca-Shafer Wells Comment
  GH414208  Ambrosia dumosa J. A. Kusche 1921-12-4 Unknown Needles Comment
  GH414209  Ambrosia dumosa K. M. Wiegand & M. C. Wiegand 1935-5-5 2502 Unknown 7 miles below summit, road to Dantes View, Death Valley Comment
  GH414210  Ambrosia dumosa A. M. Alexander & L. Kellogg 1940-4-25 1218 Unknown Canyon north side of Whipple Mountains 304 Comment
  GH414218  Ambrosia dumosa W. L. C. Muenscher & M. W. Muenscher 1939-3-27 14792 Unknown 25 miles south of Shoshone Comment
  GH414219  Ambrosia dumosa C. L. Hitchcock 1940-3-29 5860 Unknown Cottonwood Canyon, ca. 100 yardseast [sic.] of Spring Comment
  GH414220  Ambrosia dumosa A. A. Heller 1905-4-24 7754 Unknown lower part of the mountain about three miles southwest of Mojave Comment
  GH414703  Ambrosia dumosa G. Thurber 1852-02-01 - 1852-03-01 Unknown Desert west of Colorado, Colorado Desert Comment
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Sep 5 2016
  GH414704  Ambrosia dumosa L. Abrams 1903-4-2 3179 Unknown Signal Mt., Colorado desert. [Georeference: 32.6509 -115.7043, as per CCH, 15 Jul 2015] Comment
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Jul 15 2014
  GMDRC1532  Ambrosia dumosa J. Andre, Jodi Ross 2004-4-23 4728 San Bernardino Old Woman Mtns: Old Woman Mtns: Sunflower Wash area of Section 5 of NALC, growing on alluvial fans in coarse gravels. Elev. 3098 ft. 945 Comment
  GMDRC2740  Ambrosia dumosa J. Andre, T. La Doux, Shannon Still 2007-11-26 9395 San Bernardino Granite Mountains: Granite Mountains: growing in Old Dad Mtns Wash, W. side of Granite Mtns, E. end of Bristol Mtns, approx 1 mi. N. of I-40.. Elev. 3245 ft. 989 Comment
  GMDRC4136  Ambrosia dumosa J. Andre 2010-4-7 12459 San Bernardino Piute Mountains: along transmission line road in valley east of N. Piute Mtns and west of N. Sacamento Mtns, 3 mi. south of Route 66 (Natl. Trails Hwy), 2 mi. N. of I-40 freeway. 650 Comment
  GMDRC646  Ambrosia dumosa B. Pitzer 1998-11-14 3804 San Bernardino Mojave Desert: E Moj. Des., Rte 66, 9.9 mi. E of jct w/Kelbaker Rd & 1.8 mi. W of Chambless. 34d 34.3'N, 115d 28.6'W; 800'. 244 Comment
  GMDRC9779  Ambrosia dumosa J. M. Andre 2017-3-9 37951 Imperial Borrego Desert: 4 mi. east of Ocotillo, about 1 mile north of Interstate 8 67 Comment
  HSC25892  Ambrosia dumosa Richard Spjut 1971-12-30 2054 San Bernardino Mojave Desert, 29 Palms 610 Comment
  HSC30137  Ambrosia dumosa A. M. Montalvo, J. D. Ackerman 1974-3-27 160 Imperial 4 mi. W of 1000 ft. marker on westbound Hwy. 8. Mountain Springs Grade W of Ocotillo Wells; Colorado desert Comment
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Oct 23 2012
  HSC47365  Ambrosia dumosa Richard Spjut, C. E. Edson 1978-5-6 5026 Riverside Colorado Desert; N face of Chuckawalla Mountains, ca. 2.7 miles south of Desert Center 335 Comment
  HSC5668  Ambrosia dumosa C. L. Hitchcock, C. V. Muhlick 1964-3-17 23145 Imperial 8 miles S of Ocotillo Spring on road to Fish Creek Comment
  HSC5670  Ambrosia dumosa D. E. Anderson 1962-4-15 2035 Inyo Along road from Darwin to Hwy. 190 about 7 miles N of Darwin, Argus Mtns. Comment
  HSC5671  Ambrosia dumosa A. R. Marshall 1963-4-10 128 Inyo Shoshone Jct., Death Valley Monument 976 Comment
  HSC66728  Ambrosia dumosa D. L. Goforth, D. Reed 1980-3-25 360 Riverside Hwy. 195, 6 miles E of Mecca. Box Canyon, Mecca Hills 122 Comment
  HSC78599  Ambrosia dumosa A. C. Sanders 1983-4-23 3781 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
  HSC78666  Ambrosia dumosa R. F. Thorne, Drs. Fosberg, Herbst, Sachet 1983-4-23 55425 Riverside Mouth of Whitewater Canyon, E of Whitewater Post Office at S end of ridge, in sandy wash E of bridge, and on base of W-facing slope of ridge 412 Comment
  HSC79252  Ambrosia dumosa G. K. Helmkamp 1984-5-2 - 17 Riverside Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns. 550 Comment
  HSC79404  Ambrosia dumosa James Henrickson 1973-3-18 8640 San Diego 10 mi. NW of Borrego Springs at trail end near Salvidore Canyon 549 Comment
  HSC85171  Ambrosia dumosa James D. Morefield, D. H. McCarty 1986-5-4 3575 Inyo White Mtn: Just NE of Warm Springs at W base of Black Mtn., 2.4 mi. N85 deg. W of its summit. Owens Valley drainage. 1250 Comment
  IRVC14672  Ambrosia dumosa D. W. Goodall 1968-4-14 s.n. San Bernardino 15km N of Trona Mojave Desert Comment
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Sep 16 2014
  IRVC14713  Ambrosia dumosa D. W. Goodall 1968-4-23 s.n. San Bernardino Near 29 Palms entrance, Joshua Tree National Monument. southern Mojave Desert Comment
  IRVC14728  Ambrosia dumosa D. W. Goodall 1968-4-22 s.n. Imperial 3km E of Ocotilla Wells on Hwy 78 to Salton Sea. Sonoran Desert Comment
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Oct 10 2012
  IRVC19740  Ambrosia dumosa J. T. Smiley 1983-4-9 19 Riverside Philip L. Boyd Deep Canyon Desert Research Center; student study area. northern Sonoran Desert Comment
  IRVC22903  Ambrosia dumosa Fred M. Roberts, T. M. Burrows 1984-8-31 1403 Imperial S-2; 6.5km N by road of Ocotillo; ca. 18km SSW Carrizo Mtns. Sonoran desert 230 Comment
  IRVC26168  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2003-10-5 27278 San Bernardino along Hwy 62 east of Twentynine Palms, ca. 1 mile east of Old Dale Southern Mojave Desert 390 Comment
  IRVC26973  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2004-10-10 28998 San Bernardino Cadiz Valley ca. 17 miles north of Hwy 62, west of Cadiz Lake salt evaporators, along dirt road up west side of valley toward Calumet Mine Southern Mojave Desert 210 Comment
  IRVC28113  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2004-10-10 29006 San Bernardino Cadiz Valley ca. 19 miles north of Hwy 62, west of north end of Cadiz Lake, along dirt road up west side of valley toward Calumet Mine Southern Mojave Desert 192 Comment
  IRVC28115  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2004-10-10 28962 San Bernardino south end of the Sheephole Mtns. along Hwy 62, 2.8 miles west of Clarks Pass, 26.2 miles east of Utah Trail in Twentynine Palms Southern Mojave Desert 530 Comment
  IRVC29800  Ambrosia dumosa Mark A. Elvin 2004-10-7 3772 San Bernardino 7km NW Emerson Dry Lake, 5.5km S Galway Dry Lake. Southern Mojave Desert 823 Comment
  IRVC4397  Ambrosia dumosa Joseph Scott 1964-5-10 99 Riverside State Highway 74; 7 miles SE of Pinyon Flats Campground Peninsular Ranges, San Jacinto Mountains 915 Comment
  IRVC728  Ambrosia dumosa R. H. Whittaker, W. A. Niering 1963-6-1 SJ 124 Riverside Palms to Pines Hwy, slope NE-30 degrees; open, very rocky, gneiss-gabbroic soil, suffrutescent desert Santa Rosa Mountains 915 Comment
  IRVC729  Ambrosia dumosa L. T. McHargue 1966-11-25 s.n. Riverside Coachella Valley; 0.5mi. E of Junction of Ramon Road and 1000 Palms Canyon Road northern Sonoran Desert Comment
  IRVC730  Ambrosia dumosa R. H. Whittaker, W. A. Niering 1963-5-30 SJ 84 Riverside Above Palm Desert. Sonoran Desert/Santa Rosa mtns 305 Comment
  IRVC731  Ambrosia dumosa A. S. Boughey 1965-3-15 105 Riverside Above Palm Springs. northern Sonoran Desert 457 Comment
  IRVC8123  Ambrosia dumosa D. W. Goodall 1968-4-2 s.n. Imperial 10km NW of Glamis Sonoran desert Comment
  JEPS108703  Ambrosia dumosa C. Spurrier, M. J. Way 2001-6-14 6 Riverside Big Morongo Canyon Preserve, 5.6 km n of water company entrance on Kickapoo Trail 595 Comment
  JEPS123579  Ambrosia dumosa J. Andre, T. La Doux, Bart O'Brien 2007-10-2 8771 San Bernardino Clark Mountain Range, along transmission line road approx. 4.5 miles E of Excelsior Mine Road, N side of Clark Mountain. Comment
  JEPS127942  Ambrosia dumosa Adam C. Schneider with Seth Kauppenin 2016-3-22 968 Inyo Emigrant Pass, along Old Spanish Trail road, just W of the crest. Comment
  JEPS17989  Ambrosia dumosa Tim Ross, Orlando Mistretta, Mike Hammit 1955-4-18 540 Kern desert (east Kern County) Red Rock Canyon 838 Comment
  JEPS19962  Ambrosia dumosa W. L. Jepson 1916-5-2 5366 San Bernardino Barstow; Mojave Desert 670 Comment
  JEPS19963  Ambrosia dumosa W. L. Jepson 1914-5-3 5899 San Bernardino table-land summit Ord Mt.; Mohave Desert 1463 Comment
  JEPS20315  Ambrosia dumosa Lewis S. Rose 1956-5-4 56053 Kern sandy desert Mojave 838 Comment
  JEPS20420  Ambrosia dumosa Reino Alava and Rimo Bacigalupi with J. R. Sweeney and Aloha Alava 1958-4-3 1918 San Bernardino 2 mi se of (just s of rd leading from Baker to Kelso) Baker 274 Comment
  JEPS22270  Ambrosia dumosa Ernest C. Twisselmann 1958-10-31 4945 San Bernardino Kramer's Corners 762 Comment
  JEPS23584  Ambrosia dumosa Peter H. Raven 1958-3-30 12036 Inyo slong road 2.5 mi sw Hole-in-the-Rock Spring; Death Valley National Monumnent, Grapevine Mountains Comment
  JEPS26447  Ambrosia dumosa Peter H. Raven 1959-4-11 13983 San Bernardino 2.5 mi s, on rd to Lucerne Valley Barstow Comment
  JEPS30513  Ambrosia dumosa Donald Kyhos 1958-2-15 58 -11 Riverside Corn Springs Comment
  JEPS31192  Ambrosia dumosa Ernest C. Twisselmann 1962-5-7 7070 Kern at summit of Highway 395 Rademacher Hills; Mojave Desert, Mojave-Randsburg Region 967 Comment
  JEPS40929  Ambrosia dumosa W. L. Jepson 1930-5-10 15551 San Bernardino near, between Kramer and Barstow Hawes 701 Comment
  JEPS40930  Ambrosia dumosa W. L. Jepson 1920-4-30 8907 Imperial w of the s end, just w of US 99 Salton Sea; , McCain Spring Comment
  JEPS40932  Ambrosia dumosa Carl V. Meyer 1927-4-9 55 San Diego San Felipe Wash Comment
  JEPS40933  Ambrosia dumosa Otto Renner 40 Inyo Darwin Wash 1463 Comment
  JEPS40938  Ambrosia dumosa W. L. Jepson 1912-7-24 5119 Inyo Owens Lake 1127 Comment
  JEPS40944  Ambrosia dumosa W. L. Jepson 1940-5-3 19811 Inyo at, between Funeral Mts. and Grapevine Mts. Hole-in-the-Rock Spring; Funeral Mts., Grapevine Mts., Daylight Pass 914 Comment
  JEPS40945  Ambrosia dumosa W. L. Jepson 1937-5-9 18297 San Bernardino e from Mitchell Caverns (plain on e side, Providence Mts.); Providence Mts., e from Mitchell Caverns 670 Comment
  JEPS40946  Ambrosia dumosa W. L. Jepson 11699 San Diego in, se end of Santa Rosa Mts. Silent Canon; Santa Rosa Mts. 304 Comment
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May 16 2011
  JEPS40947  Ambrosia dumosa W. L. Jepson 1917-5-1 6900 Inyo in wash Funeral Mts. 701 Comment
  JEPS40956  Ambrosia dumosa I. W. Clokey 1935-4-17 6729 Riverside Mecca to Shaver's Wells; ; as Mecca-Shafer Wells Comment
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Apr 24 2011
  JEPS40957  Ambrosia dumosa I. W. Clokey and B. C. Templeton 1930-4-9 4705 Riverside n of Palm Springs; Colorado Desert 170 Comment
  JEPS40958  Ambrosia dumosa Charlotte N. Smith 1941-5-28 429 Kern 3-4 mi se on large flats, on road to Randsburg Inyo-Kern 807 Comment
  JEPS40960  Ambrosia dumosa W. L. Jepson 1941-4-28 20390 San Bernardino 3 mi from, valley between Bristol Mts. and Old Dad Mts. Staples Cove; Mohave Desert, Bristol Mts., Old Dad Mts. 762 Comment
  JEPS40963  Ambrosia dumosa W. L. Jepson 1928-4-25 12618 Riverside dry hills, (at w edge of Eagle Mountains) Cottonwood Springs; Colorado Desert, Joshua Tree National Monumnet, Eagle Mounta 731 Comment
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Oct 9 2010
  JEPS40973  Ambrosia dumosa W. L. Jepson 1928-4-25 12588 Riverside The driest and most arid hills Cottonwood Spring; Colorado Desert, Joshua Tree National Monument, Eagle Mounta 731 Comment
  JEPS60818  Ambrosia dumosa Ernest C. Twisselmann 1969-6-4 15594 San Bernardino Harper Dry Lake 670 Comment
  JEPS86519  Ambrosia dumosa Roy E. Buck 1988-4-9 877 Kern 3.1 air km ene of summit, 26 air km nne of Mojave, above crossing...<more> Chuckwalla Mtn.; Water Canyon 981 Comment
  JOTR28960  Ambrosia dumosa La Doux, Tasha 2005-3-30 1196 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  JOTR28961  Ambrosia dumosa La Doux, Tasha 2005-3-30 1197 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  JOTR29081  Ambrosia dumosa La Doux, Tasha 2005-3-30 1198 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  JOTR29388  Ambrosia dumosa La Doux, Tasha, Mike Bell 2006-5-10 1465 Riverside Joshua Tree National Park. East Deception Canyon Comment
  JOTR30065  Ambrosia dumosa La Doux, Tasha, Mike Bell, Katy Mathews, Alice Miller, Amber Holt 2007-5-23 1695 Riverside Joshua Tree National Park. Stop # 3 = Near Geology Tour rd., N of Malapai Hill 1219 Comment
  JOTR31747  Ambrosia dumosa La Doux, Tasha 2009-9-24 2067 San Bernardino Joshua Tree National Park. North Coxcomb Mountains, east of Clark's Pass; Stop 2: south of Highway 62, north east facing rocky slopes 679 Comment
  JOTR31808  Ambrosia dumosa La Doux, Tasha, Bill Truesdell 2007-11-9 2516 Riverside Joshua Tree National Park. Eagle Mountains along south boundary of park, open bajada below mouth of Lost Palms Canyon (Stop 2) 601 Comment
  JOTR31877  Ambrosia dumosa La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2131 Riverside Joshua Tree National Park. Little San Bernardino Mountains; steep, gravelly, southwest facing slope above fork of Fargo and Rockhouse Canyons Comment
  JOTR31948  Ambrosia dumosa La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2186 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky drainages feeding into southwest Pinkham Wash Comment
  JOTR34211  Ambrosia dumosa Harding, Mitzi, Mark Wheeler 2012-9-4 191 Riverside Joshua Tree National Park. Pinto Basin; near turkey flats parking area; sandy flats (Stop 1) 509 Comment
  JOTR35086  Ambrosia dumosa La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3537 Riverside Joshua Tree National Park. Southern end of Coxcomb Mountains with metasedimentary rocks; exposed ridge with rocky outcrops Comment
  JOTR36091  Ambrosia dumosa La Doux, Tasha, A. Johnson, A. Miller, T. Vaughn 2007-10-25 3318 Riverside Joshua Tree National Park. Pinto Mtn foothills, San Bernardino Wash, approx. 0.75 km south of Sunset Mine (STOP4). 475 Comment
  JOTR38666  Ambrosia dumosa Hodges, Stephen R. 2017-2-1 672 Riverside Joshua Tree National Park. Eagle Mountains, South East facing sand ramps near the aqueduct road Comment
  LA107151  Ambrosia dumosa Barry A. Prigge; Arthur C. Gibson, K. Niessen 1993-4-30 10822 c San Bernardino Fort Irwin Military Reservation, 12 km ENE of Mars Radio Telescope facility, 1.8 km SW of McLean (dry) Lake, vicinity of transect 22 960.0 Comment
  LA202893  Ambrosia dumosa Harlan Lewis; 1939-4-9 sn Riverside Indio Comment
  LA202894  Ambrosia dumosa W. B. Welch; 1928-5-5 sn Riverside Travertine Rock near Salton Sea Comment
  LA202895  Ambrosia dumosa Carl Epling; 1927-3-27 sn Riverside Thousand Palms Comment
  LA202896  Ambrosia dumosa Jonathan Sauer; D. L. Johnson 1969-4-12 4409 San Bernardino Calico Mountains Comment
  LA202898  Ambrosia dumosa F. R. Fosberg; 1932-3-13 8071 Riverside Coachella Valley, Thousand Palms Canyon Comment
  LA202899  Ambrosia dumosa A. M. Johnson; 1928-5-5 351 Riverside Travertine Rock Comment
  LA202900  Ambrosia dumosa F. R. Fosberg; 1932-4-24 8175 San Bernardino Sheep Hole Mountains, W end of mountains Comment
  LA202901  Ambrosia dumosa Bayard H. Brattstrom; 1949-4-11 sn San Diego Clark Dry Lake 182 Comment
  LA202902  Ambrosia dumosa B. H. Brattstrom; 1949-4-12 sn San Diego base of Borrego Mountain 60 Comment
  LA202903  Ambrosia dumosa Carl Epling; 1927-3-27 sn Riverside Thousand Palms Comment
  LA202904  Ambrosia dumosa Jonathan Sauer; D. Muhleman 1972-4-11 5065 Unknown Comment
  LA202905  Ambrosia dumosa S. Atsatt; 1926-4-17 sn Riverside Palm Springs Comment
  LA202907  Ambrosia dumosa Martha Hilend; 1929-3-24 sn Riverside Thousand Palms Comment
  LA202908  Ambrosia dumosa A. M. Johnson; 1932-3-27 3906 Riverside below [S of] Palm Springs Comment
  LA202909  Ambrosia dumosa Martha Hilend; 1931-4-2 630 Kern near Randsburg Comment
  LA202910  Ambrosia dumosa Harlan Lewis; 1941-4-11 sn San Diego Borrego: Hellhole Comment
  LA202911  Ambrosia dumosa Carl Epling; L. Ellison, Harvey Anderson 1930-4-17 sn Inyo Slate Mountains, Ophir Mine Comment
  LA202912  Ambrosia dumosa Carl Epling; William Robison, A. L. Haines 1935-4-20 sn Inyo Death Valley, Hole-in-the-Rock Spring Comment
  LA202913  Ambrosia dumosa Marcus E. Jones; 1929-9-16 sn Riverside E of Desert Center Comment
  LA202914  Ambrosia dumosa J. A. Ewan; 1931-4-2 4098 Riverside 10 mi. N of Edom Comment
  LA202915  Ambrosia dumosa C. B. Wolf; 1931-3-14 1890 Imperial 5 mi. W of Coyote Wells on road to Mountain Springs 152 Comment
  LA202917  Ambrosia dumosa B. H. Brattstrom; 1949-4-12 sn San Diego W of the Narrows 304 Comment
  LA202918  Ambrosia dumosa A. M. Johnson; 1932-3-19 3874 Riverside below [S of] Palm Springs Comment
  LA202919  Ambrosia dumosa Carl Epling; William Robison, A. L. Haines 1935-4-20 sn Inyo Death Valley, Hole-in-the Rock Spring Comment
  LA202920  Ambrosia dumosa A. M. Johnson; 1933-4-28 4228 Riverside Indian Wells highway along new mountain highway to Hemet, 2 to 3 mi. up from Palm Springs Comment
  LA212017  Ambrosia dumosa Deidre Conocchioli; Naomi Fraga, Ridgecrest Staff 2014-3-19 265 San Bernardino Along Afton Canyon Road 1.1 miles SE of I-15. 1.6 miles NW of Afton Canyon Campground, 2.6 miles NE of Dunn. 535.0 Comment
  LA26697  Ambrosia dumosa William Shapeero; 1954-4-28 Riverside Joshua Tree National Monument Comment
  LA31364  Ambrosia dumosa Jane Turner; Barbara Whitesel, Virginia Sjaholm 1959-3-21 C- 177 Riverside Morongo Wash Comment
  LA36882  Ambrosia dumosa Henry J. Thompson; 1960-3-25 3026 Inyo Panamint Range, 7.0 mi E of Panamint Springs, along state highway 190 670 Comment
  LA36884  Ambrosia dumosa Henry J. Thompson; 1960-3-24 3024 Inyo Panamint Valley, S end of valley, 18 miles N of Trona 457 Comment
  LA37118  Ambrosia dumosa Henry J. Thompson; 1960-3-24 3424 Inyo Panamint Valley, S end of valley, 18 miles N of Trona 457 Comment
  LA39305  Ambrosia dumosa Jane Turner; Gale Sphon 1961-3-25 C- 498 San Bernardino 36 mi. N of the turnoff from Baker to Shoshone on State Highway 127 Comment
  LA83357  Ambrosia dumosa O. H. Kappler; 1941-4-21 212 Riverside Morongo Pass Area, Desert City Comment
  LA83358  Ambrosia dumosa O. H. Kappler; 1953-4-12 2279 Kern Jawbone Canyon 731 Comment
  LA94842  Ambrosia dumosa T. A. Geissman; 1966-3-12 TAG- 31266 -FDA Riverside Box Canyon, E of Mecca Comment
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Sep 20 2013
  LA94844  Ambrosia dumosa T. A. Geissman; 1967-3-21 TAG- 32167 -ADUP Riverside from Cabazon to Palm Springs 304 Comment
  LA94845  Ambrosia dumosa T. A. Geissman; TAG- 4166 -FDC Imperial on US 80, about 20 mi. W of Yuma, at rest area Comment
  LA98554  Ambrosia dumosa G. Dilworth; 1970-4-19 24 San Bernardino Granite Mountains, on N Boundary Rd. W of Kelbaker Rd Comment
  LA98555  Ambrosia dumosa Paul Leskinen; 1970-4-19 511 San Bernardino Granite Mountains, N of mountains, powerline road 822 Comment
  LA98862  Ambrosia dumosa E. R. Hobbs; 1979-6-25 79 -102 Los Angeles Antelope Valley, Palmdale, NW corner of Avenue P and 30th Street Comment
  NY43445  Ambrosia dumosa C. R. Annable 1995-3-10 2261 Riverside 1.6km S of Lake Cahuilla County Park Comment
  OBI17101  Ambrosia dumosa Tracey Call 1962-4-6 2115 Riverside 4 mi w of Desert Hot Springs at rd jctn Comment
  OBI17103  Ambrosia dumosa Robert F. Hoover 1969-4-11 11219 Riverside Mouth of Morongo Valley cyn Comment
  OBI18915  Ambrosia dumosa David J. Keil, Donald Pinkava, Bruce Parfitt, Malcolm McLeod 1979-3-19 12998 San Diego About 3 mi W of Ocotillo Wells, just outside of E boundary of Anza-Borrego State Park. Comment
  OBI23435  Ambrosia dumosa F. Seaman 1972-3-23 76 Riverside On outskirts of Palm Springs on US hwy 111 Comment
  OBI25270  Ambrosia dumosa F. Seaman 1972-3-23 69 -2 San Diego 3 mi N of Ocotillo on State hwy S-2 Comment
  OBI25271  Ambrosia dumosa F. Seaman 1971-4-9 35 e Riverside 51.6 mi E of Twentynine Palms on State hwy 62 Comment
  OBI25272  Ambrosia dumosa F. Seaman 1971-4-9 35 c Riverside 51.6 mi E of Twentynine Palms on State hwy 62 Comment
  OBI25273  Ambrosia dumosa F. Seaman 1971-4-7 26 c Imperial 19 mi W of the intersection of State Hwy 86 and Hwy 78 Comment
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Oct 10 2012
  OBI33166  Ambrosia dumosa David J. Keil, V. L. Holland 1983-5-21 17067 Kern Just W of jctn with Calif Rte 14 along Calif rte 178 Comment
  OBI33423  Ambrosia dumosa Melissa Luckow, Rhonda Riggins, Richard Pimentel 1983-3-20 1127 San Bernardino Hwy 178 (Wildrose-Trona Rd), ca. 10 mi S of entrance to Death Valley Nationl Monument 549 Comment
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Sep 15 2014
  OBI37426  Ambrosia dumosa D. A. Hoover 1985-4-21 386 San Bernardino Morongo Canyon; Ridge above the convoluted gneiss canyon east of the pipeline road and the upper Desert Wash Trail Comment
  OBI38337  Ambrosia dumosa A. C. Sanders 1986-3-8 6153 Imperial N end of Algodones Dunes, East Mesa at E end of Montgomery Rd., ca. 1 mi E of Highline Canal. Comment
  OBI38940  Ambrosia dumosa Scott Sundberg 1984-8-23 2655 San Bernardino E of Barstow, just S of the Mojave River, 0.4 mi E of Harvard Rd. along Mojave Trail rd. Comment
  OBI49863  Ambrosia dumosa Larry Kelly 1988-3-24 22 Imperial Along Imperial hwy (S-2) in Ocatillo ca. .5 mi N of I-8 Comment
  OBI52900  Ambrosia dumosa David J. Keil, V. L. Holland and Lynne Dee Oyler 1995-4-29 24989 Inyo Eastern slope of Sierra Nevada. Nine Mile Cyn Rd, ca. 4 mi from Hwy 395. Comment
  OBI52931  Ambrosia dumosa David J. Keil, V. L. Holland and Lynne Dee Oyler 1995-4-30 25033 Kern Opal Canyon Rd at Hwy 14, N of Red Rock Canyon State Park Comment
  OBI54255  Ambrosia dumosa David J. Keil, V. L. Holland and Lynne Dee Oyler 1995-4-29 24989 Inyo Eastern slope of Sierra Nevada. Nine Mile Cyn Rd, ca. 4 mi from Hwy 395. Comment
  OBI61063  Ambrosia dumosa P. A. Holden 1966-5-30 35 Kern On roadbank 1 mi west of Boron on hwy 466 Comment
  OBI70295  Ambrosia dumosa Louis C. Wheeler 1960-6-22 7763 San Bernardino SE of Randsburg Comment
  OBI8188  Ambrosia dumosa David J. Keil, Malcolm McLeod , Dirk Walters 1977-3-28 12096 San Bernardino 23 mi S of Amboy along Amboy Rd. Comment
  POM122921  Ambrosia dumosa Marcus E. Jones 1926-1-21 s.n. San Diego Yaqui Well, Colorado Desert. Comment
  POM14015  Ambrosia dumosa Philip A. Munz, D. D. Keck 1922-4-13 4934 Riverside Eagle Mountains 274 Comment
  POM145698  Ambrosia dumosa L. R. Abrams 1927-5-1 11832 Kern Mojave and Owens Valley Road Between Cinco and Jawbone Canyon Road. Comment
  POM147593  Ambrosia dumosa Marcus E. Jones 1927-4-16 9147 Imperial Travertine Point, near Salton Sea. Comment
  POM156257  Ambrosia dumosa L. R. Abrams 1903-4-2 3179 Imperial Signal Mountain, Colorado Desert. Comment
  POM195887  Ambrosia dumosa Marcus E. Jones 1929-9-16 s.n. Riverside East of Desert Center. Comment
  POM197440  Ambrosia dumosa Roxana S. Ferris 1928-4-19 7109 Imperial 3 miles from Coyote Wells on the Dixieland Road. Comment
  POM198001  Ambrosia dumosa Joseph A. Ewan 1932-4-8 7029 Riverside Seven Palms near Garnet Comment
  POM209549  Ambrosia dumosa Florence J. Youngberg 1935-4-11 119 San Diego Borrego Palm Canyon. Comment
  POM250429  Ambrosia dumosa I. W. Clokey 1935-4-17 6729 Riverside Mecca to Shaver's Well Comment
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Apr 24 2011
  POM254240  Ambrosia dumosa Philip A. Munz 1939-10-20 12889 San Bernardino 1 miles east of 29 Palms. 762 Comment
  POM280796  Ambrosia dumosa Henry J. Ramsey, Henry J. Ramsey 1940-3-18 s.n. San Diego Borrego Valley, near Benson [Ocotillo Wells] Comment
  POM289718  Ambrosia dumosa Lyman Benson 1932-5-7 3525 Kern Dry Lake SE Redrock Canyon. 732 Comment
  POM289719  Ambrosia dumosa Lyman Benson 1932-4-24 3437 Kern Mojave-Redrock Canyon. Mojave Desert watershed. 762 Comment
  POM294142  Ambrosia dumosa Lyman Benson 1945-11-11 11952 San Diego Sand dunes, Borego [Borrego] Valley. 61 Comment
  POM294561  Ambrosia dumosa Lyman Benson 1947-5-10 12371 Kern Mojave Desert. 5 miles northwest of Searles Station. 1067 Comment
  POM306881  Ambrosia dumosa Henry J. Ramsey, Henry J. Ramsey 1940-2-24 I 809 Inyo Death Valley; Daylight Canyon Comment
  POM308538  Ambrosia dumosa Henry J. Ramsey, Henry J. Ramsey 1939-11-28 3157 Riverside Palm Springs Comment
  POM308574  Ambrosia dumosa Henry J. Ramsey, Henry J. Ramsey 1937-4-18 3243 San Bernardino Trona springs Comment
  POM308631  Ambrosia dumosa Henry J. Ramsey, Henry J. Ramsey 1937-5-9 3218 Riverside Near Indio. Comment
  POM38893  Ambrosia dumosa Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring. Comment
  POM38895  Ambrosia dumosa Marcus E. Jones 1903-5-8 s.n. Imperial Ogilvie [Location doesn't exist? Could be confused with Ogilby.] 30 Comment
  POM38980  Ambrosia dumosa Marcus E. Jones 1906-4-10 s.n. San Diego Cholla Ranch, near San Felipe, W. Colorado Desert 609 Comment
  POM38995  Ambrosia dumosa Marcus E. Jones 1897-4-30 s.n. Inyo Shepherd's Canyon, Argus Mountains. 1402 Comment
  POM38996  Ambrosia dumosa Marcus E. Jones 1897-5-6 s.n. Inyo Pleasant Canyon. Panamint Mountains. 1677 Comment
  POM38998  Ambrosia dumosa Marcus E. Jones 1884-5-3 3806 San Bernardino The Needles. Comment
  POM41493  Ambrosia dumosa Marcus E. Jones 1924-2-7 s.n. Riverside Salton Sink near Oasis. Comment
  POM41494  Ambrosia dumosa Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center. Chuckwalla Valley. Comment
  POM41505  Ambrosia dumosa Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center. Chuckwalla Valley. Comment
  POM4810  Ambrosia dumosa Marjorie Shaw 1916-03 s.n. Riverside Palm springs Comment
  POM4817  Ambrosia dumosa I. M. Johnston 1917-4-4 s.n. Riverside Mouth of Andreas Canyon. 244 Comment
  POM48819  Ambrosia dumosa Mary F. Spencer 1917-3-25 s.n. Imperial Near Coyote Wells. Comment
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Oct 9 2010
  POM50029  Ambrosia dumosa W. W. Eggleston 1924-4-15 19797 San Diego Dos Cabezas. 500 Comment
  POM6766  Ambrosia dumosa Philip A. Munz 1919-5-7 2733 Riverside Palm Springs 198 Comment
  POM6872  Ambrosia dumosa Philip A. Munz, L. T. Street, Williams 1919-3-26 2352 Imperial Near Salton Sea. -46 Comment
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Oct 23 2012
  POM7942  Ambrosia dumosa Philip A. Munz, R. D. Harwood 1920-4-1 3629 San Bernardino Needles. 152 Comment
  POM8399  Ambrosia dumosa Mary F. Spencer 1920-3-29 784 Riverside Palm Springs. Colorado Desert. 122 Comment
  POM8400  Ambrosia dumosa Mary F. Spencer 1920-4-7 784 -a Riverside Palm Canyon, Colorado Desert 183 Comment
  RSA0011035  Ambrosia dumosa April Garbat, Sarah J. De Groot 2013-3-28 33 San Bernardino Chemehuevi Wash on BLM Rd 056. Rocky outcrop on W side of wash. 243 Comment
  RSA0013463  Ambrosia dumosa Duncan S. Bell, Kim Clark, Megan Ferguson, Calamity Jane Ferguson, Amber Swanson, Jane Tirrell, Adriana VanKlaveren 2013-3-17 4565 Imperial The Jacumba Mountains; collecting in Davies Canyon, approximately 3.75 air miles south of the town of Ocotillo. 233 Comment
  RSA0019556  Ambrosia dumosa J. Andre 2013-3-4 24071 Imperial Cargo Muchacho Mtns: southeast side of range, approx. 12 miles NW of Yuma, just west of Barney Oldfield Rd, 5.0 miles north of Jct Interstate 8. 158 Comment
  RSA0020282  Ambrosia dumosa Duncan S. Bell, Tim Brockway, David Brotman, Kim Clark, Mike DePatie, Reenu Garg, John Randall, Sean Reynolds 2013-9-21 5956 San Bernardino Castle Mountains; south section of the range, just to the southeast of Hart Mine. 1328 Comment
  RSA0022452  Ambrosia dumosa J. Andre 2013-9-26 25840 San Bernardino Ivanpah Valley; Mojave National Preserve; west end of valley, 0.5 miles west of Ivanpah Rd., about 5 miles south of I-15, just south of MNP border. 856 Comment
  RSA0022699  Ambrosia dumosa J. Andre 2013-9-14 25562 San Bernardino Shadow Valley; along major powerline, 1.1 miles NW of Jct Cima Rd and Interstate 15 (at Valley Wells), 0.4 miles west of Excelsior Mine Rd. 1116 Comment
  RSA0025663  Ambrosia dumosa Deidre Conocchioli, Caitlin Elam 2013-10-1 73 Riverside East of Little Chuckwalla Mtns. From Blythe, CA. Take I-10 W for 17.8 miles, take the Wiley's Well Rd exit. Turn left (S) on Wiley's Well Rd. Travel for 1.3 miles on paved road, then continue onto the unpaved portion of the road for 4.5 miles., Collection site on right (W) side of road. 177 Comment
  RSA0027381  Ambrosia dumosa April Garbat, Sarah J. De Groot 2013-3-28 33 San Bernardino Chemehuevi Wash on BLM Rd 056. Rocky outcrop on W side of wash. 243 Comment
  RSA0027515  Ambrosia dumosa April Garbat, Deidre Conocchioli 2013-9-12 122 San Bernardino S of Danby Lake. From intersection of Hwy 177 and Hwy 62, take Hwy 62 E for 15 miles to collection site, near call box 1002. 234 Comment
  RSA0027623  Ambrosia dumosa Deidre Conocchioli, Billy Sale 2013-10-23 112 Imperial North of Yuha Desert. From El Centro: Take I-8 W for 13.3 miles. Exit at Dunaway Rd, turn right onto Dunaway road and continue for 0.7 miles to collection site on west side of road. 2 Comment
  RSA0029656  Ambrosia dumosa Deidre Conocchioli, Caitlin Elam 2013-10-10 105 San Bernardino Old Woman Mountains, north rim. From Essex, head southeast on Sunflower Springs Rd for 7.5 miles. 859 Comment
  RSA0030752  Ambrosia dumosa Scott D. White 2000-3-23 7639 Riverside Coachella Valley, Thousand Palms area: N terminus of Rio del Sol Road at intersection with Vista Chino. Proposed aggregate mine expansion. 152 Comment
  RSA0031418  Ambrosia dumosa Deidre Conocchioli, Billy Sale 2014-3-26 301 San Bernardino Along Afton Road 3.4 miles NW of I-15. N of Dunn. 572 Comment
  RSA0033750  Ambrosia dumosa Jim Andre 2013-3-27 24843 Riverside Riverside Mountains; along Wilson River Crossing Rd., 0.8 mi. east of Hwy 95, 12.4 mi. south of Vidal Jct. 114 Comment
  RSA0035370  Ambrosia dumosa Deidre Conocchioli, Billy Sale 2014-3-26 306 San Bernardino Just W of the Calico Mountains 1.5 miles N of I-15. 4.4 miles NW of Yermo, 7 miles S of Coyote Lake. 195 Comment
  RSA0035498  Ambrosia dumosa Deidre Conocchioli, Duncan S. Bell 2014-3-17 258 San Bernardino Off south end of Hidden Springs Road, south of I-40 and Barstow-Daggett Airport exit, north/northwest foot of Newberry Mountains between Daggett and Newberry Springs. 186 Comment
  RSA0035511  Ambrosia dumosa Deidre Conocchioli, Naomi Fraga, Ridgecrest Staff 2014-3-19 265 San Bernardino Along Afton Canyon Road 1.1 miles SE of I-15. 1.6 miles NW of Afton Canyon Campground, 2.6 miles NE of Dunn. 535 Comment
  RSA0035643  Ambrosia dumosa Deidre Conocchioli, Duncan S. Bell 2014-3-17 169 San Bernardino Just S of I-40 0.8 miles E of Newberry Springs off Quarry Road. 607 Comment
  RSA0035699  Ambrosia dumosa L. Madison, Marcus Lorusso 2014-3-20 CA 650 -51 Inyo LA2 near Nine Mile Road. From Ridgecrest take CA-178 W approx 7 miles. Turn right onto US-395 N. Continue N for 15.1 miles. Turn left onto Nine Mile Canyon Road for 1.7 miles. Turn right onto LA2 for 1.1 miles. Park at pullout on right. 912 Comment
  RSA0036290  Ambrosia dumosa J. M. Andre 2014-4-7 29745 San Bernardino Sandy hummocks just north of junction of BLM Rd #8687 and powerline corridor, about 1 mi. north of RR tracks underpass at Interstate 40 (Pisgah Rd). Approx. 13 mi. west of Ludlow. 650 Comment
  RSA0039963  Ambrosia dumosa Jim Andre 2013-9-11 26965 San Bernardino Mojave Natl. Preserve: along Essex Rd, 5.1 mi. north of jct with Interstate 40. 743 Comment
  RSA0040480  Ambrosia dumosa Duncan S. Bell 2014-2-21 6168 San Bernardino Newberry Mountains; northwest section of range; collecting within the Newberry Mountains Wilderness area; approximately 7.75 air miles northwest of Kane Springs. 885 Comment
  RSA0046917  Ambrosia dumosa Jim Andre 2012-5-10 22617 San Bernardino Mojave National Preserve; along Essex Road, just south of jct. with Black Canyon Rd., 9.7 mi. north of Interstate 40. 895 Comment
  RSA0047013  Ambrosia dumosa Sarah J. De Groot, Cheryl S. Sevilla 2014-10-20 7351 San Bernardino Southeast Vidal Valley; along powerline road west-southwest of Highway 95 just southwest of Vidal Wash, 0.6 mile west-southwest from Highway 95, 1.3 air miles south of Vidal, about 5 air miles west of the Colorado River., Northern bajada of the Riverside Mountains. 189 Comment
  RSA0049999  Ambrosia dumosa Jim Andre 2013-10-23 26418 San Bernardino Mojave National Preserve; end of dirt road 0.6 mi west of Black Cyn Rd, 8.0 mi. north of jct with Esses Rd, 2 mi south of Hole-in-the-Wall Campground. 1166 Comment
  RSA0050557  Ambrosia dumosa Jim Andre 2013-10-14 26358 San Bernardino Mojave Natl. Preserve; along Aiken Mine Rd, 11.7 mi NNE of Aiken Mine, about 3 mi. sw of Valley Wells at I-15 Jct with Cima Rd. 1196 Comment
  RSA0066371  Ambrosia dumosa Jim M. Andre 2014-3-18 30321 Inyo SW end of Tecopa Valley, 0.2 mi. east of Hwy 127, 0.4 mi. south of Old Spanish Trail Hwy. 420 Comment
  RSA0068123  Ambrosia dumosa Cheryl Sevilla, Kay Lewis-Jones, Sarah J. De Groot 2015-4-27 77 San Bernardino Mojave Desert; Calico Mountains region: off Copper City Road 1.5 road miles north of Irwin Road; south of the Mud Hills. 866 Comment
  RSA0074583  Ambrosia dumosa J. M. Andre 2014-4-21 29222 Inyo Last Chance Range; eastern base of range, along dirt road to Last Chance Spring, 0.5 mi. north of Death Valley Rd. 1201 Comment
  RSA0076071  Ambrosia dumosa Erika M. Gardner, Sierra Sutton 2015-3-7 1226 Kern Horse Canyon. Near old mining claim. 1211 Comment
  RSA0081760  Ambrosia dumosa Jim M. Andre 2014-1-17 30909 San Bernardino Colorado River Basin; along Needles Highway, 2.3 mi. north of Needles (at I-40). 140 Comment
  RSA0093751  Ambrosia dumosa Jim M. Andre 2012-4-11 20709 Riverside Little San Bernardino Mountains; along road to Cottonwood Spr. (Utah Trail or Eldorado Mine Rd) 1 mi NW of Fried Liver Wash, approx 15 mi. south of Hwy 62 at 29 Palms. 617 Comment
  RSA0104028  Ambrosia dumosa Sam Scherneck 2017-3-29 28 Inyo Shoshone aqua trail. 485 Comment
  RSA0112109  Ambrosia dumosa Duncan S. Bell, Amanda Turek 2009-3-30 190 Riverside South end of the Arica Mountains; approximately 1.5 air miles southwest of Priest Well. 365 Comment
  RSA0116137  Ambrosia dumosa Jim M. Andre 2016-2-23 34648 San Diego Borrego Desert: Anza Borrego St Park; Salada Arroyo, along jeep trail to Seventeen Palms, about 0.5 mi. south of S-22. 245 Comment
  RSA0118186  Ambrosia dumosa Sarah J. J. De Groot, Linda Lee Worlow 2016-3-30 7732 Inyo North side of southeast tip of the Funeral Mountains. Northwest of Death Valley Junction, west of Highway 127, north of Bat Mountain 4950, west of Bat Mountain 3279. Amargosa River drainage. 786 Comment
  RSA0121414  Ambrosia dumosa Duncan S. Bell, LeRoy Gross 2016-3-30 9184 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 6.25 air miles southeast of the summit of Martinez Mountain. 518 Comment
  RSA0130869  Ambrosia dumosa Andrew Kaiser, Lucy Ellis 2015-3-17 15 -31 Inyo Gold Valley: Lost Section Road 8 mi west of Furnace Creek Wash Road, between Amargosa Range and Black Mountains. 1300 Comment
  RSA0135709  Ambrosia dumosa Martin P. Oliver , Brittany Ashley Betz 2017-5-1 s.n. Inyo Collection was made 3.5 miles northeast of the town of Lone Pine on the west facing slope of an alluvial fan of the Inyo Mountains. Population is about 0.5 miles east of Owenyo Lone Pine Road and is accessed via a dirt road. 1146 Comment
  RSA0135715  Ambrosia dumosa Martin P. Oliver , Brittany Ashley Betz 2017-4-24 s.n. Inyo Collection was made in the southern Alabama Hills, approximately 2 miles west of the town of Lone Pine. Population is situated on a dirt road off Movie Road which is accessed via Whitney Portal Road. 1341 Comment
  RSA1223  Ambrosia dumosa B. D. Stark 1930-4-1 773 Riverside San Gorgonio Pass. 457 Comment
  RSA134679  Ambrosia dumosa Peter H. Raven 1959-4-11 13983 San Bernardino Mojave Desert. Sandy wash 2.5 miles S of Barstow on road to Lucerne Valley [Hwy 247]. Comment
  RSA15100  Ambrosia dumosa Daniel Cleveland 1885-6-25 s.n. San Diego Mountain Spring Grade. Comment
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Jul 25 2012
  RSA153370  Ambrosia dumosa A. C. Hawbecker 1957-4-28 9147 Kern Last Chance 14 m. W. of Randsburg. Plants in sandy wash. Typical desert association here. Comment
  RSA166104  Ambrosia dumosa Donald Myrick 1964-3-24 752 Inyo Emigrant Wash, Death Valley. 610 Comment
  RSA167670  Ambrosia dumosa R. F. Thorne, Robert L. Rutherford 1964-4-11 33650 Imperial Araz Wash, between Pasadena and Stud Mountains, Cargo Muchacho Mountains. 305 Comment
  RSA176470  Ambrosia dumosa Roxana S. Ferris 1930-6-14 8009 San Bernardino Along state Hwy between Daggett and Barstow. Comment
  RSA177590  Ambrosia dumosa S. Carlquist 1965-4-22 1750 Los Angeles Saddleback Butte, 19 miles east of Lancaster. Comment
  RSA191738  Ambrosia dumosa R. F. Thorne 1963-3-29 32401 Riverside Ca. 7-8 miles E of Mecca, Mecca Hills. 152 Comment
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Dec 14 2011
  RSA195533  Ambrosia dumosa Donald W. Kyhos 1964-4-18 64 -89 San Bernardino 2.0 miles south of Twentynine Palms Highway near road to Joshua Tree National Monument. Comment
  RSA195534  Ambrosia dumosa Donald W. Kyhos 1964-2-23 64 -7 Imperial Near U.S. Highway 80, 0.9 miles east of its junction with State Highway 98, east of Holtville. Comment
  RSA2147  Ambrosia dumosa C. B. Wolf 1931-3-14 1890 Imperial Colorado Desert, 5 mi. W of Coyote Wells on road to Mountain Springs. 152 Comment
  RSA226521  Ambrosia dumosa C. W. Tilforth 1971-5-15 370 San Bernardino 14 mi. n. of Yucca Valley along road to Lucerne Valley. Comment
  RSA23238  Ambrosia dumosa Ernest Braunton 1940-03 2043 Riverside Fan Canyon. 20 miles NE of Indio. Comment
  RSA23691  Ambrosia dumosa R. S. Woglum 1937-04 298 Riverside Mojave Desert: Palm Springs. Comment
  RSA241968  Ambrosia dumosa Larry E. DeBuhr, Gary D. Wallace 1973-5-17 844 Inyo Death Valley National Monument; rocky slopes ca. 10 mi. NE of Stove-pipe Wells on S side of Hwy. 58 jct. with rd. S to hwy. form Grapevine to Furnace Creek. 3 Comment
  RSA247829  Ambrosia dumosa R. F. Thorne, C. W. Tilforth 1973-3-8 42569 Inyo Death Valley National Monument: At Jubilee Pass. 402 Comment
  RSA247985  Ambrosia dumosa R. F. Thorne, C. W. Tilforth 1973-4-28 43157 San Bernardino 4.4 mi. W of Kelso along Union Pacific Railroad. 671 Comment
  RSA24880  Ambrosia dumosa C. B. Wolf 1941-5-26 10661 San Bernardino Mojave Desert, Providence Mts. 5 mi. W. of Columbia Mine (1 mi. E of U.P.R.R.) 1005 Comment
  RSA249805  Ambrosia dumosa R. F. Thorne, Gary D. Wallace 1973-4-25 43390 Los Angeles San Gabriel Mountains, Mojave Desert Slope: 1/4 mi N of Bob's Gap, 3.5 mi S of Llano, N slope of Holcomb Ridge. 1159 Comment
  RSA252891  Ambrosia dumosa R. F. Thorne 1973-5-11 43546 Los Angeles Along Mt. Emma Road, 1/2 mi. E of Little Rock Creek below the dam. 1037 Comment
  RSA25417  Ambrosia dumosa C. L. Hitchcock 1940-4-19 6113 Inyo 10 miles north of Shoshone on road to Bradbury Well [Hwy 178], Death Valley Region. 914 Comment
  RSA258113  Ambrosia dumosa Robert A. Norris 1975-6-1 2390 San Bernardino Near State Highway 58, 10 mi. W Barstow. Comment
  RSA26830  Ambrosia dumosa I. L. Wiggins 1941-3-25 9622 Imperial 8.7 miles northeast of niland, on road to Beal Well and Blythe. Comment
  RSA26835  Ambrosia dumosa I. L. Wiggins 1941-3-24 9575 Riverside Along eastern side of Salton Sea, 2.7 miles south of Mortmar. Comment
  RSA270447  Ambrosia dumosa B. A. Prigge 1973-5-18 912 San Bernardino Shadow Valley, 5.9 miles N of Interstate 15 on Excelsior Mine Road, 9.7 miles NWW of Mt Pass 1067 Comment
  RSA270590  Ambrosia dumosa James Henrickson 1973-5-26 2 San Bernardino ca. 17 (air) miles S of Kelso, 5.2 (rd) miles N of Hwy 40 along Kelbaker Rd 1159 Comment
  RSA274075  Ambrosia dumosa Richard L. Zembal 1978-5-7 21 Inyo Just south of Coso Hot Springs. Comment
  RSA275586  Ambrosia dumosa R. F. Thorne, C. W. Tilforth, A. Shmida, B. A. Prigge 1978-5-9 51216 San Bernardino Kelso Dunes: southern edge of Kelso Dunes near Bull Canyon Wash from Granite Mountains 731 Comment
  RSA27571  Ambrosia dumosa C. L. Hitchcock 1940-3-29 5860 Riverside Cottonwood Canyon, ca. 100 yards east of Spring. Comment
  RSA27578  Ambrosia dumosa C. L. Hitchcock 1940-4-30 6238 Inyo 4 miles west of Lone Pine. Comment
  RSA280782  Ambrosia dumosa K. C. Hart 1978-5-3 29 San Bernardino On sandy-gravelly bajada adjoining west edge of Sheep Corral; Plants of the Granite Mountains 1036 Comment
  RSA289333  Ambrosia dumosa Charles Convis 1980-4-9 135 Imperial Western Salton Basin. 27km due WNW of Westmorland. Flats and stabilized dunes area 0-2 km N of San Filipe creek in area of confluence with Carrizo wash. -21 Comment
  RSA289720  Ambrosia dumosa Lyman Benson 1933-3-31 4162 Riverside US 66 [US 60], Palm Springs. Mt. Range San Jacinto . 305 Comment
  RSA292305  Ambrosia dumosa James Henrickson, Edward Lee 1979-5-6 18078 Inyo Ca. 24 miles SE of Olancha, 3 road miles S of Coso Hot Springs Resort area. 1082 Comment
  RSA295966  Ambrosia dumosa Scott Martens, Marla LaCass 1980-4-21 13 San Bernardino Old Dad Mountain-Kelso Mountains Area: 5.5 mi N, 10 mi W of Kelso. 780 Comment
  RSA302651  Ambrosia dumosa J. R. Shevock 1972-3-13 1403 Riverside Hwy 111, near Palm Springs 183 Comment
  RSA302912  Ambrosia dumosa S. Castagnoli, Greg de Nevers, R. Doug Stone 1980-4-27 86 San Bernardino Smith Mine. 976 Comment
  RSA310779  Ambrosia dumosa R. F. Thorne, Walter Wisura, Mark Patterson 1983-7-1 56066 San Bernardino Mojave Desert along hwy 178 about 3.5 miles SW of Trona, enroute to Panamint Mts 511 Comment
  RSA314630  Ambrosia dumosa R. F. Thorne, F. R. Fosberg, M. H. Sachet, Charles C. Herbst 1983-4-23 55425 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  RSA33503  Ambrosia dumosa N. C. Cooper 1944-4-8 1063 Riverside Andreas Canyon. 305 Comment
  RSA336141  Ambrosia dumosa R. F. Thorne 1978-4-29 52093 Imperial Near Salton Sea: along Highway 86 near entrance to Salton Sea Navel Base, SSE of Salton Sea -61 Comment
  RSA336344  Ambrosia dumosa R. F. Thorne, Christopher Davidson 1978-6-18 52176 San Bernardino San Bernardino Mountains. Cushenbury Canyon: above Cushenbury Springs at the mouth of the canyon across from Cement Works. 1250 Comment
  RSA336398  Ambrosia dumosa R. F. Thorne, Dick Tilforth 1978-6-21 52332 Los Angeles San Gabriel Mountains: N of Bob's Gap Comment
  RSA342534  Ambrosia dumosa R. F. Thorne, D. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54016 Riverside San Bernardino Mountains: 1/4 mile W of Whitewater P. O. and 1/2 mile W of Whitewater River 415 Comment
  RSA349176  Ambrosia dumosa Thomas S. Elias, K. Tomlinson, D. Kama, M. Williams 1985-3-15 9212 San Diego Anza- Borrego State Park; along road to Arroyo Hueso 189 Comment
  RSA352654  Ambrosia dumosa Carol R. Annable 1982-5-1 27 Inyo Echo Canyon 853 Comment
  RSA387302  Ambrosia dumosa James D. Morefield, D. H. McCarty 1986-5-4 3575 Inyo White Mtns. Just NE of Warm Springs at W base of Black Mtn., Owens Valley drainage, 2.4 mi. N85 deg. W of summit. 1254 Comment
  RSA38894  Ambrosia dumosa Marcus E. Jones 1903-5-17 s.n. San Bernardino Victor [Victorville] 793 Comment
  RSA396046  Ambrosia dumosa M. O. Bagley 1987-5-8 2055 Kern 1.25 mi NW of Boron. 777 Comment
  RSA416948  Ambrosia dumosa B. C. Templeton, C. B. Clokey 1935-4-6 5716 Inyo Fan below Emigrant Canyon Panamint Mts. Death Valley. 500 Comment
  RSA416949  Ambrosia dumosa B. C. Templeton, C. B. Clokey 1935-4-4 5712 Inyo Panamint Valley. 350 Comment
  RSA416950  Ambrosia dumosa Percy Train 1937-4-2 s.n. Inyo West side Panamint Valley near Ballarat. 457 Comment
  RSA416951  Ambrosia dumosa N. C. Cooper 1949-5-19 3844 Inyo Daylight Pass, Death Valley National Monument. 1220 Comment
  RSA416952  Ambrosia dumosa Mark Kerr 1936-5-18 s.n. Inyo North of Haiwee Comment
  RSA416953  Ambrosia dumosa Christopher Davidson 1973-3-9 1676 Inyo Death Valley National Monument, 1 mile SE of Ashford jct. 114 Comment
  RSA416954  Ambrosia dumosa Christopher Davidson 1976-5-21 3963 Inyo ca. 5 miles N of Little Lake on St. Hwy 395 1066 Comment
  RSA416955  Ambrosia dumosa Christopher Davidson 1976-6-8 4316 -b Inyo On Hwy 190 (to Death Valley), 6.4 mi. E of junction with Hwy 136 (from Lone Pine). 1357 Comment
  RSA416956  Ambrosia dumosa Christopher Davidson 1973-3-9 1717 Inyo Death Valley Nat. Mon. Rhodes Wash below jct with Bradbury Wash, 1/2 mi. SW of Jubilee Pass on ST. 178. 457 Comment
  RSA416958  Ambrosia dumosa Anstruther Davidson 1910-4-24 s.n. Inyo Haiwee. Comment
  RSA416960  Ambrosia dumosa Geo Cantwell 1935-4-10 s.n. Riverside Dos Palmas Springs, Salton Sea Comment
  RSA416961  Ambrosia dumosa B. C. Templeton, I. W. Clokey 1930-4-9 1077 Riverside North of Palm Springs. Colorado desert 400 Comment
  RSA416962  Ambrosia dumosa E. K. Balls 1949-4-4 12962 Imperial Colorado Desert. between Durmid and Salton on Highway 111. 0 Comment
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Sep 18 2012
  RSA416963  Ambrosia dumosa N. C. Cooper 1949-4-8 3234 Riverside Mecca Pass east of Indio. 548 Comment
  RSA416964  Ambrosia dumosa Anstruther Davidson s.n. Riverside Colorado Desert. Comment
  RSA416965  Ambrosia dumosa Christopher Davidson 1979-4-4 7687 Riverside Orocopia Mts. Lower end of Box Canyon Rd., 4.4 mi E of Mecca. 213 Comment
  RSA416966  Ambrosia dumosa Anstruther Davidson 1893-4-10 s.n. Riverside Palm Springs. Comment
  RSA416967  Ambrosia dumosa A. Menke 1955-4-25 s.d. Riverside Mouth of Tahquitz Canyon, Palm Springs. Comment
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Sep 10 2011
  RSA416968  Ambrosia dumosa M. B. Dunkle 1933-5-6 3415 San Bernardino Dry Morongo Creek Comment
  RSA416969  Ambrosia dumosa M. B. Dunkle 1932-3-25 2900 Riverside Cathedral Canyon Comment
  RSA416970  Ambrosia dumosa M. B. Dunkle 1935-3-30 4411 San Bernardino Devil's Cactus Garden. 244 Comment
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Nov 17 2014
  RSA416971  Ambrosia dumosa Martha Hilend 1928-3-25 s.n. Riverside Painted Canyon. Comment
  RSA416972  Ambrosia dumosa P. J. Remple 1942-3-1 s.n. Riverside Dead indian Creek, Santa Rosa Mtns. Comment
  RSA416973  Ambrosia dumosa C. Epling, L. Ellison, Harvey Anderson 1930-4-17 s.n. San Bernardino Mohave Desert. Slate Mountain. Comment
  RSA416974  Ambrosia dumosa N. C. Cooper 1949-4-16 3424 San Bernardino Newberry. 548 Comment
  RSA416975  Ambrosia dumosa M. B. Dunkle 1933-3-26 3130 San Bernardino Mojave Desert, 5 miles E of Baker. Comment
  RSA416976  Ambrosia dumosa M. B. Dunkle 1935-4-15 4489 San Bernardino Providence Mountains. 1219 Comment
  RSA416977  Ambrosia dumosa M. B. Dunkle 1932-3-26 2950 Imperial Kane Springs Comment
  RSA416978  Ambrosia dumosa Chris Henne 1940-10-6 s.n. San Bernardino Desert W of Ivanpah. Comment
  RSA416979  Ambrosia dumosa L. E. Hoffman 1933-2-18 s.n. San Bernardino Morongo Valley. Comment
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Oct 16 2010
  RSA416980  Ambrosia dumosa H. de Forest, Jack Rempel 1932-12-18 s.n. Imperial Mesa E. of Niland. Comment
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Jan 8 2013
  RSA416981  Ambrosia dumosa N. C. Cooper 1949-3-15 3037 Imperial West of Yuma 244 Comment
  RSA416982  Ambrosia dumosa M. B. Dunkle 1935-4-17 4570 Imperial E. of Beal Well Comment
  RSA416983  Ambrosia dumosa Christopher Davidson, Alan Romspert 1979-4-28 7784 Imperial Off Interstate 8 on Sidewinder Rd, ca. 1.5 miles NW of Pilot Knob 79 Comment
  RSA416984  Ambrosia dumosa Paul C. Silva 1941-3-29 11 San Diego Foot of Palm Canyon, Borego Valley, Colorado Desert Comment
  RSA42550  Ambrosia dumosa R. F. Thorne, C. W. Tilforth 1973-3-8 42550 Inyo Death Valley National Monument; Junction of E&W side roads near mouth of Scotty's Canyon, 2 miles NW of Ashford Mill 0 Comment
  RSA43578  Ambrosia dumosa Mark Kerr 1937-5-1 s.n. Inyo Jail Canyon, Panamint Range. 762 Comment
  RSA43758  Ambrosia dumosa E. B. Higgins 1949-4-13 s.n. San Diego Entrance to Cranebrake Canyon. Comment
  RSA456740  Ambrosia dumosa D. Charlton, B. Pitzer 1988-5-7 1832 San Bernardino E. Mojave Desert, 11.4 miles N of Hwy 40 on Essex Rd. Providence Mtns., Wash on lower bajada parallel to rd. 9 miles east of Mitchell Caverns Recreational Area. 854 Comment
  RSA457761  Ambrosia dumosa Steve Boyd, Timothy S. Ross, L. Arnseth, D. Nordin, Richard Noyes, S. Meury 1988-3-10 2124 Riverside N. end of Palen Mtns, 2 mi west of Palen Pass. 300 Comment
  RSA457783  Ambrosia dumosa Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, D. Nordin, Timothy S. Ross 1988-3-10 2205 Riverside Sonoran (Colorado) Desert NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  RSA507491  Ambrosia dumosa J. C. Aulenbrock 1985-4-10 36 San Bernardino B.L.M. Wilderness Study Area #328, ca.35 miles E of Twentynine Palms, E of Clark's Pass at north end of Coxcomb Mountains. 701 Comment
  RSA516900  Ambrosia dumosa Orlando Mistretta 1986-3-13 1420 Riverside Northeast of Desert Center, jct of Parker Dam Rd and 'Palen Rd' (Rd. going through pass between Palen and Granite Ranges). 183 Comment
  RSA517619  Ambrosia dumosa Alan Romspert 1976-4-25 251 Inyo On high slopes N of Chris Wicht Camp, Rd to Ballarat. Panamint Mtns, Death Valley National Monument. 762 Comment
  RSA518346  Ambrosia dumosa H. Green, Lorin Hicks 1978-4-9 s.n. San Bernardino Cadiz Valley, E Mojave Desert; just N of Riverside County line, near junction of Hwy 62 with Hwy 177. Comment
  RSA518527  Ambrosia dumosa H. Green, Lorin Hicks 1978-4-26 s.n. San Bernardino E. Mojave Desert, Ward Valley; W of Needles. Comment
  RSA518928  Ambrosia dumosa F. C. Vasek 1978-5-8 s.n. San Bernardino Music Valley, ca. 8 mi. SE of Twentynine Palms. 610 Comment
  RSA568650  Ambrosia dumosa A. C. Sanders, E. J. Lawlor 1992-4-4 12092 Riverside McCoy Mountains, within 1/2 mile of McCoy Spring. 244 Comment
  RSA570329  Ambrosia dumosa Steve Boyd, Timothy S. Ross, W. Appleby 1993-3-19 7838 San Bernardino 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.[Northeast] Southern base of the Avawatz Range on lower third of alluvial fan below Sheep Creek Springs Canyon. 200 Comment
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Apr 2 2017
  RSA597463  Ambrosia dumosa L. C. Wheeler 1959-12-27 7644 Riverside Chuckwalla Mountains. White Cloud Mine. Comment
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Mar 3 2013
  RSA603806  Ambrosia dumosa L. C. Wheeler 1931-11-26 383 Riverside 2 mi. SE Salton Bench Mark, Colorado Desert. -61 Comment
  RSA604950  Ambrosia dumosa Scott D. White 1995-4-6 2778 San Bernardino Cadiz Rd., just N of Hwy. 62 260 Comment
  RSA608585  Ambrosia dumosa R. S. Woglum 1939-4-11 2207 Riverside Sonora Desert: Desert Center. Comment
  RSA608660  Ambrosia dumosa R. S. Woglum 1937-04 298 Riverside Mojave Desert: Palm Springs. Comment
  RSA608661  Ambrosia dumosa R. S. Woglum 1935-4-15 797 San Bernardino 29 Palms vicinity. Comment
  RSA608662  Ambrosia dumosa R. S. Woglum 1935-3-12 245 San Diego Sonoran Desert, Borrego Valley. Comment
  RSA608663  Ambrosia dumosa R. S. Woglum 1937-4-17 520 San Bernardino Mojave Desert: Trona; Searles Valley Comment
  RSA614011  Ambrosia dumosa Mary DeDecker 1956-5-30 323 Inyo Alabama Hills. 1219 Comment
  RSA614559  Ambrosia dumosa George K. Helmkamp 1998-4-4 3148 Riverside Junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center-Rice Rd). 457 Comment
  RSA615282  Ambrosia dumosa Jon P. Rebman, Maggie Loy 1996-10-27 3769 Imperial North of Glamis: Algodones Dunes. 60 Comment
  RSA617909  Ambrosia dumosa Valerie L. Soza, Kate Kramer 1998-6-25 328 San Bernardino San Bernardino Mountains: SE of Terrace Springs and W of Arrastre Creek. 1402 Comment
  RSA622102  Ambrosia dumosa Mary DeDecker 1967-5-12 1701 Inyo Owens Valley: At canyon south of Mazourka. East of Independence. 1219 Comment
  RSA623587  Ambrosia dumosa V. Yoder 1980-8-7 5145 Inyo Owes Valley: Alabama Hills; 2 1/2 miles northwest of Lone Pine. 1463 Comment
  RSA624016  Ambrosia dumosa Carol Roush 1963-4-9 9 Riverside Six miles south of Highway 111 on Highway 74; North-east foothills of the San Jacinto Mountains. 457 Comment
  RSA624108  Ambrosia dumosa L. C. Wheeler 1960-6-22 7763 San Bernardino Atolia: Southeast of Randsburg. Comment
  RSA625407  Ambrosia dumosa Mary DeDecker, Vincent Yoder 1983-6-14 5456 Inyo Alabama Hills, Owens Valley. 1524 Comment
  RSA625488  Ambrosia dumosa V. Yoder 1987-5-16 5926 Inyo Eureka Valley: Mouth of Loretto Wash at end of pavement. 975 Comment
  RSA643298  Ambrosia dumosa R. D. Goeden, D. W. Ricker 1970-4-30 s.n. Los Angeles Mojave Desert: ca. 7.5 mi. SE of Llano, SW side of State Hwy 138, 1.8 mi. SE of Pearblossom Highway. Site AD-70-21 1073 Comment
  RSA643343  Ambrosia dumosa R. D. Goeden, D. W. Ricker 1970-5-14 s.n. Riverside Coachella Valley: Palm Springs, SW side of Hwy 111, 1.3 mi. SE of Overture Drive, at foot of San Jacinto Mtns. near Desert Angel peak. 274 Comment
  RSA643344  Ambrosia dumosa R. D. Goeden, D. W. Ricker 1970-4-7 s.n. Imperial Colorado Desert: ca. 6 miles NW of Ocotillo, 0.9 mi. S of Hwy S2 at county line. 305 Comment
  RSA643465  Ambrosia dumosa A. C. Sanders, K. Rose 1995-4-27 16744 Riverside Coachella Valley: foot of the Little San Bernardino Mountains, canyon E of Fan Hill, just outside Joshua Tree National Park. 550 Comment
  RSA648677  Ambrosia dumosa Elizabeth Wiggins 1984-5-6 108 San Bernardino City of Ivanpah, 100 ft. N. of RR. xing., on Ivanpah Rd., 8.3 mis. N. Keystone Spirngs Rd. Comment
  RSA650428  Ambrosia dumosa R. J. Silva 1949-2-20 s.n. Riverside Found 1000 Palm Canyon, 10 mi. west of Indio. Comment
  RSA650429  Ambrosia dumosa Marion P. Harthill 1973-2-17 1556 Riverside Snow Creek, Palm Springs 366 Comment
  RSA650430  Ambrosia dumosa David B. Dunn 1948-2-21 3687 Riverside [Pushawalla] Comment
  RSA650431  Ambrosia dumosa Marion P. Harthill 1974-5-2 s.n. San Bernardino [Adelanto] 915 Comment
  RSA650432  Ambrosia dumosa Marion P. Harthill 1974-5-2 1751 San Bernardino Harper Lake 762 Comment
  RSA650433  Ambrosia dumosa Marion P. Harthill 1971-3-19 37 Riverside Palm Desert. Comment
  RSA651742  Ambrosia dumosa Katherine Thomas, Jon Zander 1988-5-6 102 San Bernardino 3.5 miles NE of Kramer Junction (Hwys. 395 an 58 junction). On Fish and Game Land. NE corner of plot. Comment
  RSA653638  Ambrosia dumosa M. A. Stalder 1998-5-24 55 San Bernardino 61241 Reche Rd, Landers Comment
  RSA655079  Ambrosia dumosa Scott D. White 2000-3-23 7639 Riverside Coachella Valley, Thousand Palms area: N terminus of Rio del Sol Road at intersection with Vista Chino. Proposed aggregate mine expansion. 152 Comment
  RSA656918  Ambrosia dumosa Annalisa Miller 1992-4-26 23 Inyo Tecopa Heights, east of the Spanish Trail Highway. Parcel number 46-401-03. Comment
  RSA658441  Ambrosia dumosa Sharon Kautto 1984-5-5 84 -34 San Bernardino Providence Mountains area. Intersection of Essex Road and Black Canyon Road headed towards Hole-In-the-Wall. Comment
  RSA658682  Ambrosia dumosa Elizabeth S. Shapiro 1984-5-6 57 San Bernardino Mojave Desert, Ivanpah. Comment
  RSA660013  Ambrosia dumosa Elizabeth S. Shapiro 1984-5-5 22 San Bernardino Mojave desert; 19 miles east of Essex Rd. on Hwy 40. Dry river bed 1/4 mile south of the Hwy. Comment
  RSA668359  Ambrosia dumosa Carol R. Annable 1995-3-10 2261 Riverside 1.6km S of Lake Cahuilla County Park. Comment
  RSA676121  Ambrosia dumosa Scott D. White 2001-4-3 8250 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  RSA678066  Ambrosia dumosa Sarah J. De Groot 2002-11-29 815 San Diego Anza-Borrego Desert State Park Comment
  RSA679722  Ambrosia dumosa Richard L. Zembal 1978-5-7 s.n. Inyo Just south of Coso Hot Springs. Comment
  RSA681306  Ambrosia dumosa LeRoy Gross, Steve Boyd, Michael Denslow, Lisa Rojas 2003-10-21 1194 San Bernardino East side of the Soda Mountains; North of interstate 15, west of Baker. Along jeep trail to Blue Bell Mine. Exit Zzyzx Road. 481 Comment
  RSA695719  Ambrosia dumosa Keith E. Hoffmaster 1933-4-13 s.n. Riverside Palm Springs. Comment
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Aug 27 2011
  RSA696086  Ambrosia dumosa LeRoy Gross, Valentin Arvizu, Sarah De Groot, Lisa Rojas, Tim Thibault 2004-5-13 1269 Imperial Chocolate Moutains (Chocolate Moutain Aerial Gunnery Range). North of Lion Head Mountain, near Beal Well. Surrounding desert off of Beal Road. 400 Comment
  RSA696738  Ambrosia dumosa J. Russell Bruff 1932-3-22 s.n. Riverside 1000 Palms. Comment
  RSA696739  Ambrosia dumosa W. Marquart 1938-3-12 s.n. Riverside Mule Mts. S. of Chuckawalla Range. Comment
  RSA696749  Ambrosia dumosa J. Russell Bruff 1922-04 s.n. Riverside Palm Springs. Comment
  RSA696750  Ambrosia dumosa J. Russell Bruff 1928-4-1 75 Riverside Whitewater Comment
  RSA696751  Ambrosia dumosa J. Russell Bruff 1927-3-13 3 -a Riverside Thousand Palms Comment
  RSA696752  Ambrosia dumosa J. Russell Bruff 1932-3-21 s.n. Riverside 1000 Palms. Comment
  RSA696753  Ambrosia dumosa J. Russell Bruff 1932-3-21 s.n. Riverside 1000 Palms. Comment
  RSA696754  Ambrosia dumosa J. Russell Bruff 1933-1-1 s.n. Riverside Travertine Point, south of Indio. Comment
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Oct 30 2011
  RSA697283  Ambrosia dumosa LeRoy Gross, Valentin Arvizu, Sarah De Groot, Lisa Rojas, Tim Thibault 2004-5-13 1237 Imperial Chocolate Moutains (Chocolate Moutain Aerial Gunnery Range). Near Surveyors Pass, surrounding desert off of Beal Road. 646 Comment
  RSA699673  Ambrosia dumosa Keith E. Hoffmaster 1935-3-31 s.n. Riverside Palm Springs Comment
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Aug 27 2011
  RSA701262  Ambrosia dumosa Steve Boyd, Sula Vanderplank, Valentin Arvizu 2004-10-13 11595 San Bernardino Ivanpah Valley: upper bajada at NE base of the Ivanpah Mtns, south of Interstate 15. Comment
  RSA701567  Ambrosia dumosa Steve Boyd, Tammy Morgan 2004-3-30 10710 San Bernardino Southern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) about hill topped with communication towers. 854 Comment
  RSA702339  Ambrosia dumosa Steve Boyd, Michael Denslow 2004-3-23 10583 San Bernardino Lavic Mountain, southern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) along powerline/pipeline access road. Comment
  RSA703807  Ambrosia dumosa LeRoy Gross 2005-3-3 1602 Riverside Palen Mountains, south side. Near end of old prospect road., Near 33.71244N, 115.11171W. to 33.72053N, 115.11051W. 207 Comment
  RSA704627  Ambrosia dumosa Sarah J. De Groot, Angela Gatto 2003-4-20 2454 San Bernardino WHIPPLE MOUNTAINS: Old road heading west from Copper Basin, off Bowman's wash road. 421 Comment
  RSA704701  Ambrosia dumosa Sarah J. De Groot, Angela Gatto, Chris Stevenson, Constance Baldwin 2003-4-19 2394 San Bernardino Whipple Mts: Canyon on NE side of mountains, off powerline road. 287 Comment
  RSA705474  Ambrosia dumosa LeRoy Gross, Amber Maurice 2005-3-17 1658 San Bernardino Mojave Desert; Southcentral Mojave Desert region: Marble Mountains; Just east of Kelbaker Road, short distance south from Highway 40., Near 34.70881N, 115.67629W, to 34.71046N, 115.67184W. General collecting in and along south draining wash, and to base of steep sided rock cliff to the east, then north to a saddle. 836 Comment
  RSA705687  Ambrosia dumosa LeRoy Gross, Amber Maurice 2005-3-17 1727 San Bernardino Southeast end of the Bristol Mountains; West off Kelbaker Road, followed a dirt road going to an antenna station on top of the mountain, stopped at base of mountain where the road was gated., Area near a place called 'Windy point' General collecting in canyon bottom and slope to the west of gate. [From] Near 34.61232N, 115.68189W to 34.60943N, 115.68508W. 552 Comment
  RSA705882  Ambrosia dumosa Sarah J. De Groot, Michael Denslow 2003-3-20 2067 San Bernardino Whipple Mts: West side, wide wash along old Needles-Parker road south of D&W mine. 435 Comment
  RSA705885  Ambrosia dumosa Sarah J. De Groot, Michael Denslow 2003-3-19 1976 San Bernardino Whipple Mts: West side of range, American Eagle Mine. 565 Comment
  RSA705886  Ambrosia dumosa Sarah J. De Groot, Michael Denslow 2003-3-19 1781 San Bernardino Whipple Mountains: Wash near intersection of Highway 95 and East Mojave Heritage Trail, west of Pyramid Butte. 405 Comment
  RSA705888  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-3-18 1588 San Bernardino Whipple Mountains: Along Havasu Palms road, between Black Meadow Landing road and intersection with powerline road. 335 Comment
  RSA705889  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-3-18 1567 San Bernardino WHIPPLE MOUNTAINS: Wash north of highway 62 and aqueduct. East of old Needles-Parker road. 329 Comment
  RSA705890  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-3-18 1516 San Bernardino WHIPPLE MOUNTAINS: Along old Needles-Parker road between highway 62 and Colorado River aqueduct. 244 Comment
  RSA705891  Ambrosia dumosa Sarah J. De Groot, Janelle De Groot 2003-1-9 946 San Bernardino Whipple Mountains: Gold Standard Mine, west side of range. 622 Comment
  RSA705892  Ambrosia dumosa Sarah J. De Groot, Janelle De Groot 2003-1-7 884 San Bernardino WHIPPLE MOUNTAINS: along Havasu Palms Road. 335 Comment
  RSA705893  Ambrosia dumosa Sarah J. De Groot, Lee De Groot 2003-4-5 2272 San Bernardino WHIPPLE MOUNTAINS: Dirt road heading N from highway 62 about 9 miles east of Vidal Junction and west of Earp, vicinity of Vista Peak. 231 Comment
  RSA705894  Ambrosia dumosa Sarah J. De Groot, Lee De Groot 2003-4-5 2209 San Bernardino WHIPPLE MOUNTAINS: Chemehuevi Wash at junction with highway 95, north of Vidal Junction. 335 Comment
  RSA705895  Ambrosia dumosa Sarah J. De Groot, Lee De Groot 2003-4-5 2192 San Bernardino Whipple Mts: Wash along highway 95 about 6 miles N of Vidal Junction, W of Savahia Peak. 358 Comment
  RSA705896  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-3-17 1378 San Bernardino Whipple Mountains: Wash and desert pavement along Highway 95 between Vidal and Vidal Junction. 260 Comment
  RSA705977  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-3-19 1734 San Bernardino Whipple Mountains: Along Highway 95 just north of Vidal. 112 Comment
  RSA706171  Ambrosia dumosa Sarah J. De Groot, Angela Gatto 2003-4-20 2488 San Bernardino Whipple Mountains: Bluff northwest of Monument Peak, south side of Copper Basin. Saddle near summit. 720 Comment
  RSA706257  Ambrosia dumosa LeRoy Gross 2005-4-12 1861 San Bernardino Mojave Desert; Southcentral Mojave Desert region: Marble Mountains; north of gas line road (mile 69), south of Highway 40, east of Kelbaker Road., General collecting from low hills north up near rocky cliff, then west northeast into a canyon bottom that I followed into the mountains a short distance. 863 Comment
  RSA706464  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-5-3 2703 San Bernardino S/SE side along aqueduct road, SW of Bowman's wash. 298 Comment
  RSA707196  Ambrosia dumosa LeRoy Gross 2005-4-19 1976 San Bernardino Rodman Moutains; South end of a large lava flow, between Camp Rock Mine to the west and Silver Bell Mine to the east. 1382 Comment
  RSA707313  Ambrosia dumosa LeRoy Gross, Bryan Tutt, Sula Vanderplank 2005-2-23 1498 San Bernardino Northwest side of the Avawatz Mountains, off road that leads to Cave Spring and Avawatz Pass. Just north of Fort Irwin indefinite boundary. Southeast of Denning Spring 604 Comment
  RSA709282  Ambrosia dumosa Sarah J. De Groot, Tasha La Doux 2003-5-21 2989 San Bernardino WHIPPLE MOUNTAINS: West side of range, along old Needles-Parker road. Dark volcanic bluff east of road and coarse sandy wash. 476 Comment
  RSA709342  Ambrosia dumosa Sarah J. De Groot, Tasha La Doux 2003-5-21 2969 San Bernardino WHIPPLE MOUNTAINS: North side of range, along road past War Eagle mine. 416 Comment
  RSA709365  Ambrosia dumosa Sarah J. De Groot, Tasha La Doux 2003-5-20 2924 San Bernardino Whipple Mountains: Hills between War EaglWhipple Mountains: Hills just north of summit ridge, south of War Eagle mine. e Mine and summit ridge. 519 Comment
  RSA709424  Ambrosia dumosa A. C. Sanders 1989-3-19 9033 .3 San Bernardino Mojave Desert: 29 Palms Marine Corps Base, east slope of Bullion Mountains, America Mine Training Range. 793 Comment
  RSA710480  Ambrosia dumosa Jon P. Rebman 2005-3-19 11259 San Diego Anza-Borrego Desert State Park: west of Ocotillo; eastern base of Jacumba Mountains; vicinity of Mortero Palms northwest of Dos Cabezas Spring. 595 Comment
  RSA710867  Ambrosia dumosa LeRoy Gross 2005-4-25 2052 San Bernardino Southwest end of the Lava Mountains, north of Red Mountain, east of Trona Road. Side road off Steam Well Road (RM1444) to Skilling Well., [From] Near 35.39090N, 117.56767W to 35.39745N, 117.56570W. 1034 Comment
  RSA711623  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter, Lauren Machen 2003-10-9 3255 San Bernardino WHIPPLE MOUNTAINS: Wash beside Atchison, Topeka, and Santa Fe Railroad tracks, just E of Vidal and Highway 95. 176 Comment
  RSA712020  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-5-4 2786 San Bernardino Whipple Mts: South side of range, along Colorado River aqueduct W of Chamber's Well road. 285 Comment
  RSA712731  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-9-28 3224 San Bernardino WHIPPLE MOUNTAINS: Along Highway 95 between Vidal Junction and Vidal. 239 Comment
  RSA713100  Ambrosia dumosa Sarah J. De Groot, Angela Gatto 2003-4-21 2588 San Bernardino WHIPPLE MOUNTAINS: Bowman's Wash near intersection with Parker Dam road near Crossroads. West end of Crossroads OHV area. 123 Comment
  RSA714726  Ambrosia dumosa Sarah J. De Groot 2004-3-29 3886 San Bernardino WHIPPLE MOUNTAINS: South side of range, road past Vista Peak, near Highway 62. 218 Comment
  RSA716162  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-3-1 1127 San Bernardino Whipple Mountains: Across Parker Dam Road from Bass Point. Comment
  RSA716447  Ambrosia dumosa Sarah J. De Groot, Leland Lubinsky 2004-10-18 4574 San Bernardino WHIPPLE MOUNTAINS: South fork of Whipple Wash, about 1 mile above intersection with north fork. 463 Comment
  RSA718486  Ambrosia dumosa J. Mark Porter 2001-4-21 12556 San Bernardino Whipple Mountains: NW slope of Pyramid Butte Comment
  RSA718519  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter, Naomi Fraga 2003-5-4 2851 San Bernardino WHIPPLE MOUNTAINS: West slope at north end of Savahia Peak, mid to low elevation. 530 Comment
  RSA719005  Ambrosia dumosa Michael Honer 2006-5-13 2314 San Bernardino Appx. 3 mi. W of Flamingo Heights; along 4WD road travelling NW across bajada from main wash at Hondo St. (near NW corner of Yucca Valley North quad) 1250 Comment
  RSA720377  Ambrosia dumosa Naomi Fraga, Michael Denslow 2003-4-8 481 Kern The Owens Peak Eastern Watershed: Lower sand dunes between Short Canyon and Grapevine Canyon. 854 Comment
  RSA720736  Ambrosia dumosa J. Mark Porter 2001-4-20 12478 San Bernardino Whipple Mountains: Just W of Colorado River, Copper Basin Dunes OHV area. Comment
  RSA720868  Ambrosia dumosa J. Mark Porter 2001-4-21 12601 San Bernardino Whipple Mountains: Wash along western boundary of BLM Wilderness area, S of D&W mine Comment
  RSA720951  Ambrosia dumosa Naomi Fraga, Genie Fraga 2002-5-4 88 Kern The Owens Peak Eastern Watershed. Owens Peak Wilderness Area. Short Canyon. Near parking area, adjacent to trail head. 1098 Comment
  RSA720963  Ambrosia dumosa Naomi Fraga, Genie Fraga 2003-4-12 551 Kern The Owens Peak Eastern Watershed: Five Fingers, near aqueduct road. 1159 Comment
  RSA721150  Ambrosia dumosa J. Mark Porter 2001-4-20 12514 San Bernardino Whipple Mountains: Granite slope just SW of Gene Wash Reservoir. Comment
  RSA725150  Ambrosia dumosa Steve Boyd 2007-10-29 11792 San Bernardino Brown Buttes area at northwestern end of Marble Mountains, on road to microwave towers east of Kelbaker Road, just south of Interstate 40. 915 Comment
  RSA725386  Ambrosia dumosa Steve Boyd 2007-11-1 11818 San Bernardino Orange Blossom wash area in alluvial basin between central portion of Bristol Mountains on west and northern end of Marble Mountains on east along gas pipeline road, west of Kelbaker Road, south of Interstate 40. 732 Comment
  RSA726314  Ambrosia dumosa Naomi Fraga, Aydee Virgen 2005-2-23 1461 San Bernardino North of Dumont Dunes, off of Dumont Dunes Road, east of Hwy 127. 220 Comment
  RSA726584  Ambrosia dumosa Naomi Fraga, Aydee Virgen 2005-2-23 1486 Inyo Just west of Ibex Hills near old mine site along old mine road. 436 Comment
  RSA727011  Ambrosia dumosa Naomi Fraga, Lisa Rojas 2005-2-10 1415 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 502 Comment
  RSA731235  Ambrosia dumosa Steve Boyd, LeRoy Gross 2008-4-11 11868 Inyo Southwestern base of Dublin Hills at eastern edge of lower Greenwater Valley, west of Shoshone, bajada east of Furnace Creek Wash Road, north and east to lowest rocky slopes and outlying hills. 580 Comment
  RSA732555  Ambrosia dumosa LeRoy Gross 2008-3-24 2934 San Bernardino Northcentral Mojave Desert region; 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
  RSA732575  Ambrosia dumosa LeRoy Gross, Pamela Conway 2008-3-26 3006 San Bernardino Alvord Mine; Southern portion of the Alvord Mountains. About 6 miles northeast of Manix. 696 Comment
  RSA732618  Ambrosia dumosa LeRoy Gross 2008-3-12 2852 San Bernardino Northcentral Mojave Desert region: Sleeping Beauty Area of the Southern Cady Mountains: Northwest from Ludlow, follow road north from Ludlow toward Broadwell Lake, then west along a trasmission line to 34.74871N, 116.23546W., This area is a small hill with shaved off top of white outcrop. (prospect mined or disturbed for the power lines). Collected along wide canyon in a northwest direction from here, to 34.76817N, 116.25781. Area between Lavic Mountain Mine to the east and Paymaster Mine to the west. 633 Comment
  RSA735398  Ambrosia dumosa Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11224 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
  RSA735643  Ambrosia dumosa LeRoy Gross 2008-4-1 3097 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
  RSA735785  Ambrosia dumosa J. Andre, Tasha La Doux, Shannon Still 2007-11-26 9395 San Bernardino Granite Mountains: growing in Old Dad Mtns Wash, W. side of Granite Mtns, E. end of Bristol Mtns, approx 1 mi. N. of I-40 989 Comment
  RSA736195  Ambrosia dumosa J. Andre 2007-11-19 9317 San Bernardino Bristol Mountains: approx 1 mi. S. of I-40, 0.5 mi. W of Kelbaker Rd, at base of Brown Buttes, upper Orange Blossom Wash. 823 Comment
  RSA737754  Ambrosia dumosa LeRoy Gross, Steve Boyd 2008-4-10 3176 Inyo Northwest area of Eagle Mountain, east of Highway 127. Collections around the Amargosa river, southern portions of the alkali flat, to steep slopes of the northern portions of Eagle Mountain., Parked jeep near 36.23651N, 116.37995W southeast to 36.22727N, 116.36935. 598 Comment
  RSA738653  Ambrosia dumosa T. La Doux, Jim Andre 2008-1-12 174 San Bernardino Sheephole Mountains: NW corner of Sheephole Mtns, along dirt road just NE of Amboy Rd at Sheephole Pass 608 Comment
  RSA746439  Ambrosia dumosa G. Gust, L. Nye 2005-3-3 455 Imperial BLM land just NE of Ogilby about 20 miles NW of Yuma off of Hwy 534 on American Girl Mine Rd. 159 Comment
  RSA749414  Ambrosia dumosa LeRoy Gross 2009-4-6 3744 San Bernardino Southwest section of the Cady Mounatins: Areas North and east of Black Butte Mine, northwest of the Sleeping beauty section. Southeast of the transmission line road., Started near 34.81756N 116.34121W traveled SE to small saddle that had little amount of sand blowed on the slope to the east of this, near 34.80312N 116.33066W. Then west to Black Butte Mine, and follow a drainage NNE from the mine site. 755 Comment
  RSA750166  Ambrosia dumosa LeRoy Gross 2009-4-6 3761 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
  RSA755253  Ambrosia dumosa R. F. Thorne, Walter Wisura, B. Busenburg, R. K. Benjamin 1983-5-6 55611 Inyo Death Valley Nat'l Monument, Funeral Mtns, campsite at lower end of Red Amphitheatre above Hole in the Wall 768 Comment
  RSA757044  Ambrosia dumosa Michael Honer 2008-3-24 2922 San Bernardino Outwash plain SW of Cady Mountains: 2.1 mi. N of Interstate 40, 2.5 mi. E of Hector Road. 637 Comment
  RSA757188  Ambrosia dumosa Michael Honer, Johanna Kisner 2008-4-8 2938 San Bernardino South edge of Johnson Valley: near Old Woman Springs; Arrastre Creek, about 0.75 mi. S of Highway 247. 976 Comment
  RSA757417  Ambrosia dumosa Michael Honer, Marc Baker 2008-4-24 3085 San Bernardino Johnson Valley: appx. 3.5 mi. SE of Old Woman Springs, on S side of Highway 247. 976 Comment
  RSA760788  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-3-30 109 Riverside Coachella Valley Preserve, near mouth of Thousand Palms Canyon. Jct of Ramon Rd and Thousand Palms Canyon Rd. 91 Comment
  RSA760806  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-22 157 Riverside N of I-10. Approx. 1.5 miles up Corn Springs Rd. 213 Comment
  RSA760824  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-5-13 212 San Bernardino Copper City Rd. S of Dobson Rd. Superior Cronese ACEC. 1037 Comment
  RSA760825  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-28 178 Kern Golden Valley Wilderness. 5 miles from Hwy 395 on Trona Rd. (BLM kiosk) 1067 Comment
  RSA760978  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-5-12 201 San Bernardino Johnson Valley OHV Area. Bessemer Mine Rd to Rock Pile Staging Area. 1006 Comment
  RSA760980  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-8 127 San Bernardino Big Morongo Canyon Preserve. 1/2 along Yucca Ridge Trail from rightside trail start. 831 Comment
  RSA761042  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks 2010-7-8 339 San Bernardino Bighorn Mtn Wilderness. San Bernadino Mtns. Rattlesnake Canyon. Site #2. 1280 Comment
  RSA761044  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-21 152 Riverside N of Desert Center. Jct of Hwy 177 and Kaiser Rd. W of Kaiser Rd. N of Hwy 177. 335 Comment
  RSA761081  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-20 148 Riverside W of Palen/ McCoy Wilderness. Intersection of Hwy 177 and Palen Pass Rd (kiosk). 366 Comment
  RSA761082  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-20 143 Riverside Hwy 177. N of Desert Center and Desert Lily Sanctuary. E of Joshua Tree National Park border. 274 Comment
  RSA761089  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks 2010-7-22 413 San Bernardino Cadiz Valley. 4 miles N of Hwy 62 on Cadiz Rd. 244 Comment
  RSA761094  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-5-27 225 San Bernardino Turtle Mtns Wilderness. Turtle Mtn Road. 488 Comment
  RSA761097  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-5-26 220 San Bernardino Whipple Mtns Wilderness. SW side of Whipple Mtns, just north of the Colorado River Aquaduct. 304 Comment
  RSA761291  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks 2010-6-22 243 San Bernardino Bighorn Mtn Wilderness. Ruby Mtns. New Dixie Mine Rd. 1189 Comment
  RSA761722  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-28 184 Kern El Paso Mtns Wilderness. Red Rock Inyokern Rd. Near Freeman Wash Well. 869 Comment
  RSA761725  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks 2010-6-14 232 Inyo NE of Trona. Slate Mtn Range. P168 just past Golf Canyon Jct. 671 Comment
  RSA765550  Ambrosia dumosa J. Andre 2010-3-1 12520 Imperial Borrego Desert region; southeastern Coyote Mtns, along Painted Gorge Rd, approx 5 mi. NE of town of Ocotillo, 4 mi. N. of Interstate 8. 68 Comment
  RSA765659  Ambrosia dumosa J. Andre 2010-4-7 12459 San Bernardino Piute Mountains; along transmission line road in valley east of N. Piute Mtns and west of N. Sacamento Mtns, 3 mi. south of Route 66 (Natl. Tails Hwy), 2 mi. N. of I-40 freeway. 650 Comment
  RSA766608  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-27 175 Riverside Orocopia Mtns Wilderness. Orocopia Mtns. SR 2013/ Red Canyon Rd at wilderness boundary sign. 689 Comment
  RSA766609  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-27 172 Riverside Mecca Hills Wilderness. Off Box Cannyon Rd (66th st) (Hwy 195). Campground E of Mecca. 198 Comment
  RSA766664  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy 2010-8-12 518 Kern E of Short Canyon ACEC. Short Canyon. Dune area below old mining project. Rd SC 139. 976 Comment
  RSA766670  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-22 162 Riverside Chuckwalla Valley. N of I-10. Wiley Well Rd exit on 4x4 rd towards McCoy Peak. 213 Comment
  RSA766671  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-22 168 Riverside McCoy Wash. N of I-10. Rd going N from Black Rock Rd. S side of private land boundary. 244 Comment
  RSA767466  Ambrosia dumosa J. Mark Porter, Orlando Mistretta, S. Hobbs 2002-3-2 13404 Imperial Imperial Dunes Recreation Area [Algodones Dunes], 0.5 miles west-southwest of Ogilby, west of County road S34. 95 Comment
  RSA768341  Ambrosia dumosa J. Andre 2010-5-19 14662 San Bernardino Cima Dome; Mojave National Preserve; southwest of Cima dome along Mojave Road at Cedar Wash, 0.4 miles northwest of Kelbaker Road Junction with Cedar Canyon Road, approx. 13 miles northeast of Kelso. 1080 Comment
  RSA769445  Ambrosia dumosa J. Andre 2010-5-26 14617 San Bernardino Clark Mountain Range; Mojave National Preserve: along dirt road to Pachalka Spring (NNW of Pachalka Spr), approx. 2.5 miles from Excelsior Mine Road, 6 miles north-northeast of Valley Wells 1245 Comment
  RSA769848  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-5-19 590 Kern El Paso Mtn Wilderness. Car parking area delineated by volcanic rocks. 976 Comment
  RSA769849  Ambrosia dumosa Thomas Stoughton, Jackie McConnaughy, Andrew Monks 2010-6-8 228 San Bernardino Cady Mtn Wilderness. Powerline Rd. Site #2. 701 Comment
  RSA772035  Ambrosia dumosa Sarah J. De Groot, Mary Motheral 2010-4-23 6256 San Bernardino Calumet Mountains: SE side, isolated hill of granite boulders. N of Hwy 62 along road to salt evaporators on Cadiz Lake. 347 Comment
  RSA772258  Ambrosia dumosa Sarah J. De Groot, Mary Motheral 2010-4-24 6329 San Bernardino Whipple Mountains: Saddle between drainages below cove, NE of highest peak along summit ridge. 841 Comment
  RSA773537  Ambrosia dumosa R. G. Swinney 2009-4-29 10565 Los Angeles Carr Canyon, 0.5-1.0 mi. east of Little Rock Creek confluence. 945 Comment
  RSA774031  Ambrosia dumosa Laney Widener 2011-5-2 6 San Bernardino North side of Chemehuevi Mountains along Highway 95 and at route NS 0276- going south down the wash 484 Comment
  RSA774344  Ambrosia dumosa Duncan S. Bell, The California Wilderness Coalition 2011-4-3 2152 San Bernardino The Soda Mountains; collecting in the vicinity of Blue Bell Mine. 840 Comment
  RSA774505  Ambrosia dumosa Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4428 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 487 Comment
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May 26 2013
  RSA775936  Ambrosia dumosa Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-31 946 Riverside Wash crossing Midland Rice Road, near saddle between Little Maria Mountains and Big Maria Mountains 320 Comment
  RSA776197  Ambrosia dumosa Amber Swanson 2011-4-1 326 San Bernardino Sand dunes near Cronese Dry Lake. 330 Comment
  RSA776577  Ambrosia dumosa Amber Swanson 2011-4-8 369 Riverside Granite Mtns area E of Hwy 177 near jct 62. 423 Comment
  RSA776761  Ambrosia dumosa Amber Swanson 2011-4-9 387 San Bernardino SW side of Iron Mtns. 382 Comment
  RSA777299  Ambrosia dumosa Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 986 Riverside Iron Mountains, on southwest side of mountains in drainage on either side of the road 419 Comment
  RSA777416  Ambrosia dumosa Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-22 784 Riverside Mecca Hills, just south of Shaver's Well. 305 Comment
  RSA777462  Ambrosia dumosa J. Andre 2010-9-18 14902 San Bernardino Ivanpah Valley; Mojave National Preserve; along transmission line road 2.4 miles SW of Nipton, in southeastern Ivanpah Valley 957 Comment
  RSA778864  Ambrosia dumosa J. Andre 2011-4-15 17244 Kern El Paso Mountains; Mormon Gulch north of Goler Heights, 0.7 mile north of Garlock Road, 4.1 miles west of U. S. 395 821 Comment
  RSA778945  Ambrosia dumosa Sarah J. De Groot, Leland Lubinsky, Sean Regalado, Jon Ancona 2011-3-20 6658 San Bernardino Chemehuevi Mountains: Trampas Wash, upstream from Parrish Spring, near west edge of mountains. At junction with another wash from the west. 687 Comment
  RSA779548  Ambrosia dumosa Sarah J. De Groot, Erin Tripp 2011-5-6 6702 San Bernardino Sheep Hole Mountains, SW Mojave Desert: East side of saddle east of Sheep Hole Pass, wash running ~N40 E, south of saddle. NE side of main ridge of the mountains. 765 Comment
  RSA780229  Ambrosia dumosa Stephanie Rockwood, Christi Gabriel 2011-10-12 107 Riverside East side of the West Riverside Mountains. Highway 62 to NS857 (Radio Tower Road) to NS 853 to 7 Wash Road. Vidal Valley. 348 Comment
  RSA781530  Ambrosia dumosa Duncan S. Bell 2010-5-1 872 San Bernardino Arica Mountains: northwest section of project area, approximately 11 air miles west of the ghost town of Rice, at the junction of Highway 62 and the aqueduct access road. 242 Comment
  RSA782872  Ambrosia dumosa J. Andre 2011-10-26 19170 San Bernardino Along Hwy 58, 18 mi. west of Barstow, 0.2 mi. N. or highway, 0.2 mi. E. of Harper Lake Rd. 690 Comment
  RSA782893  Ambrosia dumosa J. Andre 2011-11-16 19417 San Bernardino Colorado River Valley: along Needles Hwy east of Dead Mtns, 6.3 mi north of I-40 at Needles. 100 Comment
  RSA784725  Ambrosia dumosa Duncan S. Bell 2012-3-18 3211 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
  RSA785023  Ambrosia dumosa Duncan S. Bell, Kim Clark, Tom Persons 2012-4-15 3377 San Bernardino The Calumet Mountains; southern section of this range in the Sheephole Valley Wilderness. Approximately 6.75 air miles northeast of Clarks Pass. 657 Comment
  RSA786628  Ambrosia dumosa Lois Goodman 1982-9-24 S.N. San Bernardino Ft. Irwin NTC, Military coordinates 304346 Comment
  RSA788742  Ambrosia dumosa Aaron C. Sedgwick, Joshua Paolini 2012-6-27 95 San Bernardino Hwy. 62 east of 29 Palms ~ 17 miles. North of Joshua Tree National Park. 600 Comment
  RSA78879  Ambrosia dumosa Philip A. Munz, Percy C. Everett 1952-5-30 17392 San Bernardino 7 miles north of Barstow 732 Comment
  RSA788980  Ambrosia dumosa Aaron C. Sedgwick, David Fraker 2012-3-28 25 Riverside In the Mecca Hills, take Box Canyon Rd. approximately 6 miles south of Rt. 10. 323 Comment
  RSA789477  Ambrosia dumosa Aaron C. Sedgwick, Joshua Paolini 2012-6-13 92 San Bernardino Off of Halloran Springs Rd., north of Hwy. 15 and north of Mojave National Preserve. 974 Comment
  RSA789478  Ambrosia dumosa Aaron C. Sedgwick, Joshua Paolini 2012-6-13 91 San Bernardino Western side of Hwy. 127 in a wash ~6 mi. north of Baker. 289 Comment
  RSA789751  Ambrosia dumosa David Fraker, Aaron Sedgwick 2012-5-8 95 San Bernardino Whitewater - South of Whitewater Cutoff on a narrow strip of land north of Hwy. 10 ~200 ft. 422 Comment
  RSA790040  Ambrosia dumosa David Fraker, Aaron Sedgwick 2012-3-22 21 San Bernardino Palen Mtns. - Travel north on Highway 177 to Coxcomb Mountain Rd. Head east on Coxcomb Mountain Rd. ~8 mi. 376 Comment
  RSA790041  Ambrosia dumosa David Fraker, Aaron Sedgwick 2012-3-22 20 San Bernardino Chuckwalla Valley - South of Joshua Tree National park on both sides of Highway 177. North of Highway 10 ~5 mi. South of the Desert lily Sanctuary ~3 mi. 183 Comment
  RSA790973  Ambrosia dumosa Aaron C. Sedgwick, David Fraker 2012-4-23 56 San Bernardino South of 29 Palms Highway 62, approximately 14 mi. east of Twentynine Palms. 600 Comment
  RSA792580  Ambrosia dumosa Aaron C. Sedgwick, Joella Simons Adkins 2012-11-8 161 Riverside Chuckwalla Valley - On DuPont Rd. The population is generally limited to within 30 ft. of the road. The population is scattered, but continues for several miles from the intersection with Chuckwalla Valley Rd. 168 Comment
  RSA792912  Ambrosia dumosa Aaron C. Sedgwick, Duncan S. Bell 2012-9-12 117 Riverside Rice Valley - Take Rice/Blythe Rd. south ~3 mi. from Hwy. 62, then head east on an unmarked BLM road. 235 Comment
  RSA793270  Ambrosia dumosa Aaron C. Sedgwick, April Garbat 2012-10-16 137 San Bernardino North of Rice Valley on Hwy. 62 ~4 mi. east of Rice. 302 Comment
  RSA793432  Ambrosia dumosa J. Andre, Glenn L. Clifton 2011-12-1 20560 San Bernardino Chemehuevi Mtns.: NW end of range at Lobecks Pass, 0.2 mi east of Hwy 95 11.4 mi south of Needles (at I-40). 476 Comment
  RSA794096  Ambrosia dumosa J. Andre, Rufous 2011-10-12 21458 San Bernardino Granite Mtns: Mojave National Preserve. Lower Willow Springs Basin at base of eastern fork. 1171 Comment
  RSA796018  Ambrosia dumosa Duncan S. Bell 2009-4-18 245 Riverside Arica Mountains; northeast of range, approximately 2.25 air miles southwest of the ghost town of Rice. 224 Comment
  RSA796102  Ambrosia dumosa Duncan S. Bell 2009-4-20 318 Riverside Arica Mountains: southeast of range, approximately 7.5 air miles south of Rice. 244 Comment
  RSA796457  Ambrosia dumosa Duncan S. Bell 2009-4-18 219 Riverside Arica Mountains: northwest of range, approximately 1.6 air miles south of Highway 62, and approximately 0.4 air mile north of California aqueduct. 389 Comment
  RSA796735  Ambrosia dumosa J. Andre 2011-10-7 22567 San Bernardino Mojave National Preserve: along US Hwy 66 (Natl. Trails Hwy) just west of Goffs, north side of road. 777 Comment
  RSA797706  Ambrosia dumosa J. Andre 2012-4-24 23417 San Bernardino Granite Mountains; UC Granite Mountains Desert Research Center, along eastern flanks of range just south of Bunny Club, just north of Kissing Rocks. 1215 Comment
  RSA797772  Ambrosia dumosa J. Andre 2012-9-18 23138 San Bernardino Kingston Range: along Excelsior Mine Rd, approx. 18 mi N of Interstate 15, at SE end of range. 1036 Comment
  RSA798642  Ambrosia dumosa Margaret R. Mulligan, Larry Hendrickson, L. Louise Jee 2008-4-25 2513 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, northwest of Salton City, section 14 (SL14), in Coral Wash ca. 2 miles southwest of Highway 86. 26 Comment
  RSA799426  Ambrosia dumosa J. Andre 2012-8-30 23457 San Bernardino Piute Range; Mojave National Preserve; far south end of Piute Range, 0.8 miles west of powerline (Walter Road), approximately 5 miles south of Government Road, 8 miles north of Highway 66, 7 miles west of Highway 95. 886 Comment
  RSA799725  Ambrosia dumosa J. Andre 2012-8-30 23247 San Bernardino Fenner Valley; along BLM Road NS119, 0.6 miles south of Route 66, between the Clipper Mountains and Old Woman Mountains, just north of railroad tracks at big wash. 477 Comment
  RSA800983  Ambrosia dumosa Thomas Stoughton, Tom Chester, James Dillane, Dave Stith, Mike Crouse 2010-10-22 691 San Bernardino Bighorn Mountain Wilderness near Ruby Mountain, New Dixie Mine road approximately .4 miles west of highway 247. 1189 Comment
  RSA853  Ambrosia dumosa J. T. Howell 1927-6-12 111 San Bernardino Mojave Desert. Deadman's Point 914 Comment
  SBBG100372  Ambrosia dumosa W. L. Halvorson 1977-3-11 77 -158 San Bernardino between Twentynine Palms and Amboy, Sheep Hole Mtns 609 Comment
  SBBG105065  Ambrosia dumosa S. Boyd with T. Ross, W. Appleby 1993-3-19 7838 San Bernardino S base of the Avawatz Range, on lower third of alluvial fan below Sheep Crk Springs Cyn. 200 Comment
  SBBG109173  Ambrosia dumosa D. Wilken with G. A. Wilken 1997-11-1 15372 Riverside tributary of San Bernardino Wash, 0.3 km SW of Gold Crown Rd, SW slope of Pinto Mtns 605 Comment
  SBBG118966  Ambrosia dumosa J. M. Porter 2001-4-21 12601 San Bernardino Whipple Mtns, W boundary of BLM Wilderness area, S of D&W mine Comment
  SBBG119298  Ambrosia dumosa L. Gross with B. Tutt, S. Vanderplank 2005-2-23 1498 San Bernardino NW side of the Avawatz Mtns, off rd that leads to Cave Spring and Avawatz Pass, just N of Fort Irwin indefinite boundary, N of Denning Spring 604 Comment
  SBBG13992  Ambrosia dumosa E. R. Blakley 1958-5-10 2298 Kern 5 mi S of Mojave 853 Comment
  SBBG14504  Ambrosia dumosa E. C. Twisselmann 1962-5-7 7070 Kern Rademacher Hills, summit of US Hwy 395 967 Comment
  SBBG15646  Ambrosia dumosa D. Myrick 1962-5-28 611 San Bernardino Victorville to Palmdale, St Hwy 18, ca. 15 mi W of Victorville 914 Comment
  SBBG22761  Ambrosia dumosa D. Myrick 1965-2-25 1030 San Diego near Borrego Springs 182 Comment
  SBBG25177  Ambrosia dumosa Leota Davidson 1966-4-5 234 Riverside near intersection on Wyley Wells Rd, off Interstate 10 between Desert Center and Blythe, Chuckawalla Mts Comment
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Apr 5 2011
  SBBG29419  Ambrosia dumosa D. Myrick 1968-3-4 1801 Riverside Desert Hot Springs 304 Comment
  SBBG34831  Ambrosia dumosa D. F. Howe 1980-4-13 Imperial Hwy 8, 7 mi E of Holtville Comment
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Feb 3 2011
  SBBG35061  Ambrosia dumosa T. L. Secrest 1948-4-7 Riverside above Whitewater 304 Comment
  SBBG37954  Ambrosia dumosa T. L. Secrest 1948-4-8 Imperial near Kane Springs Comment
  SBBG61670  Ambrosia dumosa R. Hoffmann 1928-2-9 San Bernardino 5 mi S of Saratoga Spring [Death Valley] Comment
  SBBG61671  Ambrosia dumosa R. Hoffmann 1929-4-4 San Bernardino Avawatz Mtns Comment
  SBBG61672  Ambrosia dumosa R. Hoffmann 1929-4-2 Inyo Ballarat Grade Comment
  SBBG61673  Ambrosia dumosa R. Hoffmann 1929-5-20 Kern Muroc Comment
  SBBG61675  Ambrosia dumosa R. C. and J. R. Robbins 1933-2-16 Imperial Travertine Pt, 24 mi S of Indio Comment
  SBBG61676  Ambrosia dumosa R. Hoffmann 1931-8-27 Inyo Darwin Mesa [probably Darwin Plateau] Comment
  SBBG61677  Ambrosia dumosa R. Hoffmann 1928-10-21 Riverside below Fig Tree John's [Figtree John Spring] -60 Comment
  SBBG61678  Ambrosia dumosa J. R. and R. C. Robbins 1930-3-29 Los Angeles Antelope Valley Comment
  SBBG61679  Ambrosia dumosa Mark Kerr 1937-5-2 Inyo Jail Cyn [Panamint Valley] 762 Comment
  SBBG61680  Ambrosia dumosa C. F. Smith 1961-9-26 6518 San Diego Little Blair Valley Comment
  SBBG61681  Ambrosia dumosa M. N. Ackley 1927-3-13 248 Imperial Salton Sea -76 Comment
  SBBG7542  Ambrosia dumosa H. and M. Dearing 1931-4-6 4598 San Diego Anza-Borrego State Park Comment
  SBBG7543  Ambrosia dumosa H. and M. Dearing 1936-12-25 2332 Riverside Thousand Palms Cyn Comment
  SBBG7544  Ambrosia dumosa H. and M. Dearing 1938-4-5 2587 Inyo Titus Cyn, Death Valley Comment
  SBBG7545  Ambrosia dumosa H. and M. Dearing 1940-4-28 4233 Inyo Towne Pass Comment
  SBBG7546  Ambrosia dumosa K. A. Wilson, C. J. George 1961-3-4 902 Inyo Keane Wonder Mine Rd, Funeral Mtns Comment
  SBBG81836  Ambrosia dumosa J. Hogan 1975-5-29 83 Riverside ca. 2.5 mi N of Berdoo and Rockhouse Cyn jct, Joshua Tree Nat Monument 1072 Comment
  SBBG87795  Ambrosia dumosa A. C. Sanders 1986-3-8 6153 Imperial N end of Algodones Dunes, East Mesa at E end of Montgomery Rd, ca. 1 mi E of Highline Canal.; T12S, R15E, NE 1/4 of SE 1/4 S2 18 Comment
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Nov 13 2011
  SBBG92157  Ambrosia dumosa D. F. Howe 1980-5-26 San Bernardino 1 mi E of Cima Bridge 1190 Comment
  SBBG92823  Ambrosia dumosa D. Charlton 1988-2-18 1122 Riverside Fargo Cyn Rd to Cottonwood Wash, parallel to Interstate 10, ca. 1 mi E of jct of Dillon Rd and Fargo Cyn Rd 609 Comment
  SBBG94927  Ambrosia dumosa F. C. Vasek -Jul-1978 San Bernardino Music Valley, near Twentynine Palms, (site 14) Comment
  SD100208  Ambrosia dumosa James Henrickson 1978-5-6 16804 San Bernardino 19 miles east southeast of Barstow in Newberry Mountains; up canyon just west of Newberry. 609 Comment
  SD103509  Ambrosia dumosa Darley Howe 1978-5-29 San Bernardino Barstow 640 Comment
  SD10375  Ambrosia dumosa Irma Van Gorder 1935-2-22 Imperial Painted CaA'on Comment
  SD10534  Ambrosia dumosa Frank F. Gander 1935-3-7 136 2 San Diego Borrego Valley Comment
  SD108027  Ambrosia dumosa F. Seaman 1972-3-23 69 1 Imperial 3 miles north of Ocotillo on State Hwy S-2 (mak 8/06) Comment
  SD113187  Ambrosia dumosa Darley F. Howe 1938-4-15 649 San Diego Borrego State Park near Palm Canyon. Comment
  SD127613  Ambrosia dumosa David Charlton 1988-2-18 1122 Riverside South side of Little San Bernardino Mountains; Fargo Canyon Road to Cottonwood Wash, south of Joshua Tree National Park. 609 Comment
  SD128724  Ambrosia dumosa Darley F. Howe 1980-4-13 Imperial 7 miles east of Holtville on Highway 8 Comment
  SD128725  Ambrosia dumosa Darley F. Howe 1980-5-26 San Bernardino 1 mile east of Cima Bridge 1189 Comment
  SD132273  Ambrosia dumosa F. C. Vasek Jul 1978 San Bernardino Music Valley, near 29 Palms. Comment
  SD136929  Ambrosia dumosa Steve Boyd, Tim Ross, Walter Appleby 1993-3-19 7838 San Bernardino Southern base Avawatz Range, on the lower third of alluvial fan below Sheep Creek Springs Canyon 60 Comment
  SD138466 Image available Ambrosia dumosa Charles F. Harbison 1951-5-22 San Diego Mt. Springs. Comment
  SD139699  Ambrosia dumosa Jon Rebman, Maggie Loy 1996-10-27 3769 Imperial N of Glamis: Algodones Dunes 60 Comment
  SD142470  Ambrosia dumosa Jon P. Rebman, Adrienne Russell 1997-9-6 4206 Imperial West of Plaster City: along Painted Gorge Road, N of S-80 39 Comment
  SD143584  Ambrosia dumosa R. D. Goeden, D. W. Ricker 1970-5-14 Riverside Coachella Valley, Palm Springs, southwest side of Highway 111, 1.3 miles southeast of Ovcerture Drive at foot of San Jacinto Mountains 274 Comment
  SD143585  Ambrosia dumosa R. D. Goeden, D. W. Ricker 1970-4-30 Los Angeles Mojave Desert, ca. 7.5 miles southeast of Llano, southwest side of State Highway 138, 1.8 miles southeast of Pearblossom Highway 1073 Comment
  SD144073  Ambrosia dumosa G. K. Helmkamp, E. Helmkamp 1998-1-23 2562 Imperial On the W side of Hwy 86, 18.8 mi NW of Westmoreland. Comment
  SD14573  Ambrosia dumosa Frank F. Gander 1936-4-1 1364 Imperial Extreme northwest corner of Imperial County. Comment
  SD152283  Ambrosia dumosa Jon Rebman, Joan Dowd & Veronica Gallego 2000-4-19 6526 Imperial NW of El Centro, about 4 miles S of San Sebastian Natural Area and San Felipe Wash, W of Salton Sea and E of Fish Creek Mountains 29 Comment
  SD154968  Ambrosia dumosa Joe Barth 2004-3-21 47 San Diego Devil's Slide Lane near top, between Shell Reef Expressway and San Felipe Wash 59 Comment
  SD155695  Ambrosia dumosa Patrick McConnell 2004-4-3 42 San Diego Anza Borrego Desert State Park, Vallecitos Mtns, SDiego Co., CA 618 Comment
  SD156703  Ambrosia dumosa Unknown 1939-12-14 San Diego Mason Valley Comment
  SD156704  Ambrosia dumosa Unknown 1939-4-4 San Diego Vallecito Comment
  SD156920  Ambrosia dumosa Jeannie Gregory, John Gregory 2004-2-29 672 San Diego Northeast of Borrego Springs on DiGiorgio Road. 249 Comment
  SD158236  Ambrosia dumosa Robin Halford 2004-4-4 22 San Diego 536 Indian Head Ranch Road, Borrego Springs; 2 miles north of S22 235 Comment
  SD161345  Ambrosia dumosa Joe Barth 2004-10-30 108 San Diego In and near San Felipe Wash, NE of East Butte Borrego Mt. 61 Comment
  SD161346  Ambrosia dumosa Char Glacy, Nancy Nenow 2005-2-27 29 San Diego Anza Borrego Desert State Park - On road between S2 and Palm Springs. About 50 yards in from the North of S2. Comment
  SD161596  Ambrosia dumosa Mike D. Angel 2005-1-15 47 San Diego Agua Caliente - Squaw Pond Trail. Agua Caliente is county park in Anza-Borrego Desert about 25 miles north of Ocotillo on County Highway S2. 430 Comment
  SD16730  Ambrosia dumosa Frank F. Gander 1937-4-6 3185 San Diego Extreme northeast corner of San Diego County. Comment
  SD167900  Ambrosia dumosa Mike D. Angel, John Dewald 2005-3-5 178 San Diego Anza-Borrego Desert State Park. June Wash. Exit Highway S2 3.2 miles from Agua Caliente Regional Park. Take dirt road north. Road forks about 2.5 miles in. Take right fork. Drive about 1.3 miles further until road ends 404 Comment
  SD16805  Ambrosia dumosa Frank F. Gander 1937-4-7 3260 San Diego Kane Springs Road, County Line Comment
  SD168515  Ambrosia dumosa Jon P. Rebman, N. Nenow, C. Glacy, & G. & M. Brooks-Gonyer 2005-3-19 11259 San Diego Anza-Borrego Desert State Park: west of Ocotillo; eastern base of Jacumba Mountains; vicinity of Mortero Palms northwest of Dos Cabezas Spring 594 Comment
  SD170002  Ambrosia dumosa Joe Barth 2005-2-19 255 San Diego Anza-Borrego Desert State Park: Mortero Canyon Rd. about .2 mile southwest of Hwy S2 (just north of Lava Flow Wash crossing). 289 Comment
  SD170003  Ambrosia dumosa Jeannie Gregory, John Gregory, Karen Rich, Gary Erbeck 2005-3-19 1271 San Diego Anza-Borrego State Park; 8 miles W of Ocotillo at base of Jacumba Mtns; Mortero Canyon Rd; by the railroad tracks just SW of Dos Cabezas Mine. 529 Comment
  SD170924  Ambrosia dumosa Larry Hendrickson 2005-4-30 595 San Diego Plum Canyon, Anza-Borrego Desert State Park. Approx. 0.6 air mi SE of Sentenac Mountain and 1.8 miles SW of intersection of unpaved road and State Hwy 78, at Cal. Riding & Hiking Trail. 732 Comment
  SD170925  Ambrosia dumosa Larry Hendrickson, L. Louise Jee 2005-4-27 562 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
  SD170926  Ambrosia dumosa Larry Hendrickson 2005-4-9 502 San Diego Anza-Borrego Desert State Park. Approx. 2.0 miles east of historic Vallecito Stage Station. Short canyon just East of Alta Bisnaga Wash, 0.2 mi North of County Hwy S-2, westside of small hill (Guard on Agua Caliente Springs 7.5' topo map). 427 Comment
  SD170927  Ambrosia dumosa Larry Hendrickson 2005-4-3 459 San Diego Anza-Borrego Desert State Park. Mason Valley, East of Vallecito Wash on NE side of County Hwy S-2 approx. 0.9 mi SE of access road to Oriflamme Canyon. 671 Comment
  SD170928  Ambrosia dumosa Larry Hendrickson 2005-3-4 355 San Diego Anza-Borrego Desert State Park. Mountain Palm Springs. Southwest of parking area, along trail. 244 Comment
  SD171570  Ambrosia dumosa Jon P. Rebman, Norman Roberts 2005-4-22 11761 San Diego Anza-Borrego Desert State Park: Henderson Canyon, approx. 2 miles north of Borrego Springs, just northwest of Galleta Meadows 305 Comment
  SD173242  Ambrosia dumosa Larry Hendrickson, L. Louise Jee 2005-4-27 2130 Imperial Grave Wash, approx. 3.0 air miles west of hwy. 86 and 2.5 air miles north of hwy. S-22 (Borrego-Salton Seaway). 36 Comment
  SD173243  Ambrosia dumosa Larry Hendrickson, Kim Marsden, L. Louise Jee 2005-4-14 1926 Imperial Trust for Public Lands Option Properties; South of SE tip of Santa Rosa Mtns. Coral Wash, approx. 2.5 air miles SW of hwy. 86 and 2.0 air miles north of hwy. S-22 (Borrego-Salton Seaway). 20 Comment
  SD175969  Ambrosia dumosa Joe Barth 2005-10-20 750 San Diego Anza-Borrego Desert State Park. In Fish Creek Wash ESE of the Vallecito Mountains, and N of the East Mesa. ~0.5 mile SW of the S entrance to Split Mountain gorge, 1 mile W of the Imperial County line, and 0.8 mile N of the formation called Elephant Knees. 156 Comment
  SD175970  Ambrosia dumosa Joe Barth 2005-10-19 725 San Diego Anza-Borrego Desert State Park. Lower Borrego Valley on the side of Ol' Kane Springs Rd ca 4.2 miles from Split Mt Rd. ~5 miles ENE of summit of Sunset Mt. About 3.7 miles WSW of town of Ocotillo wells, and ~4.4 miles east of Hwy 78. 171 Comment
  SD175971  Ambrosia dumosa Joe Barth 2005-10-14 668 San Diego Anza-Borrego Desert State Park, SE area of Carrizo Valley, mouth of Canyon sin Nombre ~0.4 mile S of confluence with Carrizo Creek. 174 Comment
  SD177371  Ambrosia dumosa Larry Hendrickson, Margaret Mulligan, Cathleen Weigand 2006-5-17 1424 San Diego Anza-Borrego Desert State Park. North side of San Felipe Wash, 1.0 mi west of intersection of State Hwy 78 and County Hwy S-3 on south side of Grapevine Canyon Rd. (poleline road). 434 Comment
  SD177372  Ambrosia dumosa Larry Hendrickson, Margaret Mulligan, Cathleen Weigand 2006-5-18 1440 San Diego Anza-Borrego Desert State Park. Yaqui Flat, approx. 2.5 miles west of intersection of State Hwy 78 and County Hwy S-3 and 0.5 mi north of Hwy 78, a short distance north of San Felipe Wash and Grapevine Canyon Rd. 525 Comment
  SD177373  Ambrosia dumosa Larry Hendrickson, Cathleen Weigand, Brian Woodward 2006-5-23 1497 San Diego Anza-Borrego Desert State Park. Grapevine Canyon, approx. 0.7 km NW of Bitter Creek Canyon on north side of wash. 605 Comment
  SD177959  Ambrosia dumosa Jon P. Rebman 2006-5-20 12860 San Diego Vallecito Valley (BLM Wilderness area): S of Vallecito Stage Station County Park in Potrero Canyon, base of the Sawtooth Mountains on the west side 590 Comment
  SD178849  Ambrosia dumosa Melvin M. Sweet 2006-3-25 289 San Diego Anza-Borrego Desert State Park, Coyote Canyon, Lower Willows, about 7 mi NW of town of Borrego Springs, near the hiking/riding trail above the 3rd crossing. 363 Comment
  SD180496  Ambrosia dumosa Bill Sullivan 2006-4-18 196 San Diego Anza-Borrego Desert State Park, Borrego Mountain, Hawk Canyon, I(c) mi N on canyon jeep trail from Buttes Pass jeep road. 188 Comment
  SD180859  Ambrosia dumosa Katherine F. Carey, Lindsey Baseda, Jeremy, Erika Brewer 2005-4-2 10 San Diego Anza-Borrego Desert State Park, Squaw Canyon, SW of Agua Caliente County Park. 580 Comment
  SD181949  Ambrosia dumosa Jeannie Gregory, John F. Gregory, MA Kessler 2006-5-20 1991 San Diego Sawtooth Mountains Wilderness (BLM Land): Vallecitos Valley, S of Vallecito Stage Station County Park in northern edge of The Potrero, on NW base of the Sawtooth Mountains 523 Comment
  SD184599  Ambrosia dumosa Larry Hendrickson 2006-5-20 1446 San Diego Anza-Borrego Desert State Park. Vallecito Valley (formerly the Vallecito Ranch) 2.8 km south of County Hwy S-2 on the west side of the Sawtooth Mtns. 500 Comment
  SD185118  Ambrosia dumosa John F. Green, Nathan Moorhatch 2005-11-23 San Bernardino Southwest of 29 Palms Marine Corps Base, ca. 3.0 miles southeast of Yucca Valley. 1036 Comment
  SD185443  Ambrosia dumosa CRES Native Seed Gene Bank, J Dunn, S Spackman 2006-5-16 217 San Diego Vallecito, McCain Valley, N of Great Southern Overland Stage Route (S2), 1.6 mi W of Vallecito County Park, 2 mi S of Ghost Mountain. 502 Comment
  SD190593  Ambrosia dumosa Larry Hendrickson, Jon Rebman. 2005-4-15 3136 Imperial Picacho State Recreation Area, adjacent to maintenance yard. 71 Comment
  SD190878  Ambrosia dumosa Joni Ward, Wendy Hodgson, Dawn Goldman, Dave Martinez 2007-4-24 13 San Diego Mountain Springs Grade, 6 mi ENE of Jacumba, W of Interstate 8, 0.18 mi W of Imperial County line, 0.81 mi S of Devil's Canyon, W of stone corral, in wash at culvert, up drainage past spring. 740 Comment
  SD191757  Ambrosia dumosa Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-10 14592 b 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
  SD191758  Ambrosia dumosa Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-10 14529 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
  SD191759  Ambrosia dumosa Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-9 14458 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
  SD191760  Ambrosia dumosa Jon Rebman, W. Schmidtmann & V. Marshall 2008-4-9 14502 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
  SD191761  Ambrosia dumosa Jon Rebman, W. Schmidtmann, L. Hendrickson, & L. L. Jee 2008-4-8 14394 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 18 (SL18), small arroyo off of Grave Wash, Site LARTRI in arroyo bottom and surrounding cliff walls 89 Comment
  SD193562  Ambrosia dumosa CRES Native Seed Gene Bank, L Lippitt, S Anderson 2005-3-22 66 San Diego Anza-Borrego Desert State Park, San Felipe Wash, 1 mi SW of junction of Hwy 78 and Borrego Springs Rd, N of Old Kane Spring Rd at Lower Borrego Valley 259 Comment
  SD198167  Ambrosia dumosa Bill Sullivan 2007-4-27 295 San Diego Borrego Springs, Anza-Borrego Desert State Park, just N of County Road S-22 (Salton Seaway), in Font's Point Wash, 9 mi ENE of Borrego Springs 209 Comment
  SD198168  Ambrosia dumosa Bill Sullivan 2007-5-2 308 San Diego Borrego Springs, Anza-Borrego Desert State Park, 6.72 miles N of Borrego Springs, 2.85 miles NW of intersection of Di Giorgio Road and Coyote Way, on Coyote Canyon Jeep Trail, 400 yd northwest on east bank of Coyote Creek 305 Comment
  SD198169  Ambrosia dumosa Don Rideout, Ann Keenan 2007-3-26 13 San Diego Anza-Borrego Desert State Park, Coyote Creek, west side of Collins Valley, east of Box Canyon, approximately 2.5 miles south of Riverside County Line 416 Comment
  SD198170  Ambrosia dumosa Ruth R. Ehly 2008-4-5 17 San Diego Borrego Springs, 2 miles NNW of Christmas Circle, SE of the intersection of Yaqui Rd. and Pointing Rock Dr. 189 Comment
  SD198171  Ambrosia dumosa Melvin M. Sweet 2007-9-30 465 San Diego Anza-Borrego State Park; Vista del Malpais Overlook in the Borrego Badlands, ca 3 miles S of Hwy S22 305 Comment
  SD19876  Ambrosia dumosa Frank F. Gander 1937-11-21 4726 San Diego Across from gypsum mine, Fish Creek. Comment
  SD198946  Ambrosia dumosa Bill Sullivan 2008-3-6 364 San Diego North of Borrego Springs, Anza-Borrego Desert State Park, Coyote Canyon Jeep Trail 2.4 miles north of north end of DiGiorgio Road blacktop amd about 1.5 miles east of El Vado Historical Marker 232 Comment
  SD199776  Ambrosia dumosa Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-23 16520 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
  SD199777  Ambrosia dumosa Jon Rebman, G. Fleming and W. Schmidtmann 2009-3-11 16326 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
  SD199778  Ambrosia dumosa Jon Rebman, G. Fleming and W. Schmidtmann 2009-3-12 16487 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
  SD199779  Ambrosia dumosa Jon Rebman, G. Fleming, W. Schmidtmann, & G. Erbeck 2009-3-10 16210 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
  SD199780  Ambrosia dumosa Jon Rebman, G. Fleming, W. Schmidtmann, & G. Erbeck 2009-3-9 16139 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, approx. 2.7 mile W of Hwy. 86; Section 22 (SL22), Palm Wash, Site PHOCAL in sandy arroyo bottom and surrounding mud embankments -9 Comment
  SD199781  Ambrosia dumosa Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-23 16563 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
  SD199782  Ambrosia dumosa Jon Rebman, G. Fleming and W. Schmidtmann 2009-3-11 16399 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
  SD199783  Ambrosia dumosa Jon Rebman, G. Fleming, W. Schmidtmann, & G. Erbeck 2009-3-9 16148 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
  SD200300  Ambrosia dumosa Jon Rebman, G. Fleming, V. Marshall, & A. Winner 2009-3-26 16764 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
  SD201054  Ambrosia dumosa Margaret R. Mulligan, L. Hendrickson, G. Fleming 2009-10-4 3166 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City, W of Hwy. 86; Section 21 (SP21), in Palm Wash, site ISOACR, in wash. 42 Comment
  SD201297  Ambrosia dumosa Joe Barth 2007-12-4 870 San Diego Anza-Borrego Desert State Park, San Felipe Wash. About 10 miles SE of Borrego Springs. 0.8 mile NNW of the intersection of Borrego Valley Rd and Hwy 78. ~400m downstream of the huge dip in BV Rd that is called Texas Dip (George Bush?) on some maps. 182 Comment
  SD201298  Ambrosia dumosa Joe Barth 2007-12-4 878 San Diego Anza-Borrego Desert State Park, San Felipe Wash. About 10 miles SE of Borrego Springs. 1 mile NNW of the intersection of Borrego Valley Rd and Hwy 78. ~900m downstream of the huge dip in BV Rd that is called Texas Dip (George Bush?) on some maps. 180 Comment
  SD201299  Ambrosia dumosa Richard L. Breisch 2008-3-8 340 San Diego Anza-Borrego Desert State Park, 6 Km east of Canebrake, in Arroyo Tapiado, about 3.2 km north of junction with Overland Stage Route. 256 Comment
  SD201300  Ambrosia dumosa L. Louise Jee, L. E. Hendrickson, Kim Marsden 2008-3-31 266 San Diego Anza-Borrego Desert State Park, about 3.5 miles southwest of County Highway S-2, along north fork of Indian Valley road, 1 mile west of junction of north & south forks. SE corner of sec 16, T 15S R 7e SBB&M 452 Comment
  SD202091  Ambrosia dumosa Christopher Christie 1996-12-29 7 San Bernardino In wash, Bullion Mountains/Sheephole Pass. 715 Comment
  SD204055  Ambrosia dumosa Bill Sullivan, Tom Chester, Wayne P. Armstrong 2008-3-6 387 B San Diego Northeast corner of San Diego County and Anza-Borrego Desert State Park, about 1.25 miles south of Riverside County line and about .75 miles west of the Imperial County line 121 Comment
  SD204056  Ambrosia dumosa Jon P. Rebman, L. Hendrickson, S. Leininger, & V. Marshall 2010-3-4 18724 San Diego Anza-Borrego Desert State Park: vicinity of Split Mountain; along the North Fork of Fish Creek Wash near its junction with Mollusk Wash 230 Comment
  SD205156  Ambrosia dumosa Kim Marsden, L. Hendrickson, J.& R. Riolo, P. Larson, R. Ehly 2008-3-20 355 A San Diego Anza-Borrego Desert State Park, mouth of Glorietta Canyon, Yaqui Meadows, about 1A| miles SW of Borrego Springs Road intersection with Glorietta Canyon Road on jeep trail 358 Comment
  SD205157  Ambrosia dumosa Diana Lindsay, Anne Hoppe 2008-4-19 16 San Diego Anza-Borrego Desert State Park, E of Clark Dry Lake, SW of Santa Rosa Mountains, 3.6 mi NE of intersection of Rockhouse Cyn Truck Trail and Borrego Salton Seaway (S22), top of mud hills 182 Comment
  SD205158  Ambrosia dumosa Thomas E. Barckley, Lucia Barckley 2008-4-5 52 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
  SD205159  Ambrosia dumosa Kim Marsden, Larry Hendrickson, ABDSP Volunteer Botany Group 2008-3-24 291 San Diego Anza-Borrego Desert State Park; northern end of Hills of the Moon Wash in the Borrego Badlands, about 1.75 miles southeast (by air) of Fonts Point 170 Comment
  SD205160  Ambrosia dumosa Kim Marsden, L. L. Jee, L. Hendrickson, ABDSP Botany Group 2008-3-31 407 San Diego Anza-Borrego Desert State Park, north fork of Indian Canyon, about 5 miles west of County road S-22, all the way to the turn-around and about 1.5 miles northnortheast of Sombrero Peak 644 Comment
  SD205161  Ambrosia dumosa Jeannie Gregory, John Gregory 2008-3-7 2628 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. 285 Comment
  SD208659  Ambrosia dumosa Layla Aerne Hains, J. Gregory, M. A. Hawke, V. Marshall 2008-3-27 154 San Diego Anza-Borrego Desert State Park, along road to Canyon Sin Nombe, 1 mile E from intesection with Highway S2 (Sweeny Pass Rd), 11.5mi NW of I8 and town of Ocotillo 280 Comment
  SD208660  Ambrosia dumosa Nancy Nenow, Lawrence Glacy 2008-3-7 410 San Diego Anza-Borrego Desert State Park, Mountain Palm Springs, W side of Carrizo Valley, 500 yds SW of intersection with S-2 near parking lot. 270 Comment
  SD210654  Ambrosia dumosa Larry Hendrickson, Michael Bigelow 2010-5-6 4700 San Diego Anza-Borrego Desert State Park. Smuggler Canyon, east of Little Blair Valley. 2.1 air miles SW of Whale Peak summit, and 0.6 mile ESE of terminus of road to Pictographs trailhead. 996 Comment
  SD211368  Ambrosia dumosa Jon Rebman, A. Trouette, V. Marshall, M. Vazquez, T. Beltran 2010-4-3 18876 Imperial Southwest of Plaster City on Bureau of Land Management (BLM) property in an area proposed for development of a solar facility: S of Hwy. S80 & N of I-8, NE of Ocotillo & W of El Centro; along a powerline road 53 Comment
  SD211958  Ambrosia dumosa Larry Hendrickson, Tom Beltran 2009-4-4 3693 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
  SD211959  Ambrosia dumosa Larry Hendrickson 2009-3-1 3372 San Diego Anza-Borrego Desert State Park. Carrizo Wash, 1.6 surface miles SSW of intersection of County Rd. S-2 and access road to wash, and 1.0 mile north of Rockhouse Canyon. 775 Comment
  SD211960  Ambrosia dumosa Larry Hendrickson, Tom Beltran 2009-4-4 3656 A San Diego Borrego Valley. Yaqui Meadows, Tom and Rose Beltran property. 1.9 miles S 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. 323 Comment
  SD211961  Ambrosia dumosa Larry Hendrickson, ABDSP Botany Society members. 2009-3-23 3447 San Diego Anza-Borrego Desert State Park. Carrizo Canyon. At mouth of tributary canyon (Four Frogs Canyon) to the W of Carrizo Canyon, 0.6 mile W of intersection Mortero Canyon and S-2. 301 Comment
  SD214103  Ambrosia dumosa Bill Sullivan 2009-5-6 717 San Diego Anza-Borrego Desert State Park, 1.5 miles NNE of Rockhouse Canyon Road with Borrego Salton Seaway (county Road S22) south shore of Clark Dry Lake, 0.1 mile east of road 182 Comment
  SD214719  Ambrosia dumosa Bill Sullivan, Tom Chester 2009-3-7 602 San Diego Anza-Borrego Desert State Park, west side of Rockhouse Canyon Road 3 miles north of Borrego-Salton Seaway (County Road S22) near shore of Clark Dry Lake 177 Comment
  SD214720  Ambrosia dumosa Bill Sullivan 2009-3-11 614 San Diego Anza-Borrego Desert State Park, Cactus Garden, 3.85 mi. ESE of Highway 78 and Old Kane Spring Road, E of Harper Canyon, 0.2 mi. S of Old Kane Spring Road 180 Comment
  SD214721  Ambrosia dumosa Bill Sullivan 2009-3-11 610 San Diego Anza-Borrego Desert State Park, Cactus Garden, 0.9 mi. east of Highway 78 intersection with Old Kane Spring Road 277 Comment
  SD215796  Ambrosia dumosa Bill Sullivan 2009-4-1 657 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
  SD215797  Ambrosia dumosa Larry Hendrickson 2009-3-29 3577 San Diego Anza-Borrego Desert State Park. Earthquake Valley, mouth of Crime Canyon (unofficial name). 1.5 air miles E of intersection of County Road S-2 and road to Blair Valley. 0.3 mile east of northern access road to Little Blair Valley. 894 Comment
  SD218270  Ambrosia dumosa Carol R. Annable 1995-3-10 2261 Riverside 1.6 km south of Lake Cahuilla County Park. Comment
  SD218524  Ambrosia dumosa Larry Hendrickson 2010-3-27 4579 San Diego Tierra Blanca Mountains, west of Carrizo Valley. Agua Caliente Regional Park, in Moonlight Canyon. S of campground. 0.9 air mile S of intersection of County Road S-2 and access road to park. 420 Comment
  SD218957  Ambrosia dumosa S. J. De Groot, Erin Tripp 2011-5-6 6702 San Bernardino Sheep Hole Mountains, SW Mojave Desert, east side of saddle east of Sheep Hole Pass, wash running ~N40 E., south of saddle; northeast side of main ridge of the mountains. 765 Comment
  SD219706  Ambrosia dumosa Larry Hendrickson, Jon Rebman, Victoria Marshall, Suzann Leininger 2010-3-3 4488 San Diego Anza-Borrego Desert State Park. NE-side of Vallecito Mountains. 3.6 air miles SW of intersection of State hwy. 78 and Split Mountain Rd., and 1.0 mile SW of intersection of Old Kane Springs Rd. and Youngs Rd. 167 Comment
  SD220625  Ambrosia dumosa Margaret R. Mulligan, L. Hendrickson, L. L. Jee 2008-4-25 2513 Imperial Freeman Properties (Truckhaven): West of the Salton Sea, NW of Salton City; Section 14 (SL14), in Coral Wash ca. 2 mi southwest of Hwy 86. 25 Comment
  SD220931  Ambrosia dumosa Joe Barth 2011-3-5 1214 San Diego Lower Fish Creek Wash in Split Mountain (N of the well known anticline); 8.4 miles due S of State Hwy 78, 0.5 mile due W of county line. Anza-Borrego Desert State Park. 114 Comment
  SD220932  Ambrosia dumosa Joe Barth 2011-2-14 1113 San Diego W side of Borrego Springs Rd, ~80m N of Tilting T Dr. Town of Borrego Springs. 198 Comment
  SD220933  Ambrosia dumosa Joe Barth 2011-3-6 1252 San Diego Fish Creek Wash, 4.1 miles due W of county line, 12.75 miles due S of state hiway 78, ~0.2 mile upstream of west terminus of Loop Wash. Anza-Borrego Desert State Park. 248 Comment
  SD221852  Ambrosia dumosa Mike Bigelow 2010-12-10 327 San Diego Anza-Borrego Desert State Park; Rockhouse Canyon Road, NW Clark Dry Lake, 6 miles NNW of intersection with S-22 220 Comment
  SD221853  Ambrosia dumosa Joe Barth 2010-2-4 1076 San Diego Bank Wash ~1.9 miles W of county line. Ocotillo Wells State Vehicular Recreation Area. 91 Comment
  SD221854  Ambrosia dumosa Mike Bigelow 2011-3-11 356 San Diego Anza-Borrego Desert State Park; mouth of Corral Canyon, near Visitor's Center 245 Comment
  SD227224  Ambrosia dumosa Joe Barth 2011-4-15 1406 San Diego Anza Borrego Desert State Park. East base of Jacumba Mts, SW of the Volcanic Hills. NW of Piedras Grandes Mt. By RR trax and adjacent slopes and flats. 3 miles due W of Imperial County line. 4.7 miles due S of Hiway S2, 8.2 miles due N of Interstate 8. 557 Comment
  SD228425  Ambrosia dumosa Joe Barth 2011-4-4 1269 San Diego Jojoba Wash, Anza-Borrego Desert State Park. 2.25 miles due S of Hwy S2, 11 miles due N of Freeway I8, 3.8 miles due W of Imperial county line. Bajada WNW of the Volcanic Hills. 452 Comment
  SD229057  Ambrosia dumosa Dick Schwenkmeyer 2012-11-6 861 Riverside Palm Canyon, Ague Caliente Indian Reservation, 2.6 mi. south of the intersection of South Palm Canyon Drive and East Palm Canyon Drive, Palm Springs. 178 Comment
  SD231187  Ambrosia dumosa LeRoy Gross, Steve Boyd, Michael Denslow & Lisa Rojas. 2003-10-21 1194 San Bernardino Mojave Desert; Northcentral Mojave Desert region; East side of the Soda Mountains; North of interstate 15, west of Baker. Along Blue Bell Mine jeep trail. Near intersection with 2nd jeep trail, in an east direction, just north of the powerlines. 480 Comment
  SD233253  Ambrosia dumosa Aaron C. Sedgwick, Duncan Bell 2012-9-12 117 Riverside Mojave Desert; Southcentral Mojave Desert region: Rice Valley - Take Rice/Blythe Rd. south about 3 mi. from Hwy. 62, then head E on an unmarked BLM road. 235 Comment
  SD233467  Ambrosia dumosa Joe Barth 2011-4-22 1509 San Diego Eastern Jacumba Mts, Anza-Borrego Desert State Park. About 9.5 miles W of town of Ocotillo in Imperial County. 3.2 miles due W of county line; 5.9 miles due N of interstate 8. On wind-blasted ridge above (N of) Palm Canyon; 0.4 mile W of Mortero Palms. 847 Comment
  SD235803  Ambrosia dumosa Kim Marsden, Anza-Borrego Desert State Park Botany Society 2009-3-23 604 San Diego Anza-Borrego Desert State Park; Carrizo Gorge, 4 miles SW of junction Hwy S-22 and Jojoba Wash 294 Comment
  SD240271  Ambrosia dumosa J. M. Andre 2013-3-20 26139 San Bernardino Region: M; Sacramento Mountains about 15 mi. west of Needles, south of I-40, along gas pipeline road (BLM#NS061), southeastern Sacramento Mtns, at northern base of Flattop Mountain, approx 6 mi. east of major utility lines access road 636 Comment
  SD242403  Ambrosia dumosa Melvin M. Sweet 2010-3-27 901 San Diego Anza-Borrego Desert State Park; 0.4 miles S of State Hwy 78, along the Mine Wash Jeep Trail, which intersects Hwy 78 2.8 miles east of County Route S3 (Yaqui Pass). 398 Comment
  SD242671  Ambrosia dumosa Andrea Laltoo 2005-3-26 25 Imperial Yuha Desert Area of Critical Environmental Concern, wash to S side of route 294 and to E side of route 297 131 Comment
  SD242672  Ambrosia dumosa 1993-3-18 Imperial Entrance to Davis [Davies] Valley Comment
  SD242673  Ambrosia dumosa 1993-3-5 Imperial Shell Canyon Comment
  SD243800  Ambrosia dumosa Donald L. Hazlett 1993-3-13 6752 Imperial 2 mi. S of Ocotillo 152 Comment
  SD24414  Ambrosia dumosa A. J. Stover 1939-3-25 230 San Diego Borrego Mud Hills Comment
  SD24619  Ambrosia dumosa A. J. Stover 1939-3-25 223 San Diego Oil Well, Borrego Desert. Comment
  SD247036  Ambrosia dumosa Bill Sullivan 2010-3-14 799 San Diego Anza-Borrego Desert State Park, Harper Wash, 2.42 SE of junction Old Kane Springs Road and Highway 78 299 Comment
  SD247567  Ambrosia dumosa R. F. Thorne, C. W. Tilforth, Larry E. DeBuhr, B. Tucker, R. K. Benjamin, et al 1976-10-30 48686 San Bernardino Granite Mountains, eastern Mojave Dessert: Southern, flat, sandy margin of Kelso Dunes. 793 Comment
  SD247774  Ambrosia dumosa Larry Hendrickson 2012-9-3 5922 San Diego Anza-Borrego Desert State Park, Blair Valley. 0.9 surface mile ESE of intersection of County Route S-2 and NW access road to primitive camping areas. 796 Comment
  SD248862  Ambrosia dumosa Mary Jo Churchwell 2010-3-19 290 San Diego Anza-Borrego Desert State Park; Coachwhip Canyon North; vicinity 0.28 mile N of junction with Highway S-22 305 Comment
  SD249903  Ambrosia dumosa Ian Cain, Emily Clayton 2010-3-14 1303 San Diego Anza-Borrego Desert State Park; 3.83 miles SWof Imperial Highway at San Diego/Imperial County border, near railroad tracks 1.0 mile NW of railroad bridge 559 Comment
  SD250426  Ambrosia dumosa Ellen Dean, Tom Starbuck, Margaret Starbuck 2010-4-8 5845 Imperial BLM Algodones Dunes Natural Area. E side of dunes. 6 miles N of Hwy 78, along Kipf Road, E and W side of road. Along wash. 74 Comment
  SD250601  Ambrosia dumosa Jon Rebman, J. LaGrange & W. Schmidtmann 2014-9-26 28826 Imperial Algodones Dunes area: east of Brawley; north of Hwy 78 at Glamis & west of the railroad & Ted Kipf Road; on the eastern edge of the dune field 89 Comment
  SD250602  Ambrosia dumosa Jon Rebman, J. LaGrange, W. Schmidtmann, & J. Emming 2014-9-24 28728 Imperial Milpitas Wash just west of Hwy 78; south of Palo Verde & south of the Palo Verde Mountains; in the sandy wash just south of Milpitas Wash Road 132 Comment
  SD252486  Ambrosia dumosa Nancy Nenow 2011-4-18 1816 San Diego Anza-Borrego Desert State Park; along S-2 (Sweeny Pass Road) at Canyon Sin Nombre overlook; about 600 yards SE of junction with Canyon Sin Nombre Road 370 Comment
  SD252962  Ambrosia dumosa Ian Cain, Emily Clayton, Kris Schlech, Lindsay Willrick 2012-4-8 1728 San Diego Anza-Borrego Desert State Park, NW of Jacumba; along Carrizo Gorge Road 1.67 miles NNW of I-8 overpass; NNW of Round Mountain 821 Comment
  SD253591  Ambrosia dumosa Diana Lindsay, Marilyn Dickson 2009-4-20 69 San Diego Anza-Borrego Desert State Park; NW of Clark Dry Lake; S of Santa Rosa Mountains; 6.7 mi NNW of intersection of Rockhouse Cyn Rd and Borrego Salton Seaway (S22) 269 Comment
  SD253592  Ambrosia dumosa Larry Hendrickson 2013-11-9 6316 San Diego Anza-Borrego Desert State Park, east of Elephant Trees Area. 5.9 surface miles SSE of intersection of Split Mtn. Road and State Route 78 and 0.1 mile SSW of intersection of Split Mountain Road and access road to Elephant Trees. 34 Comment
  SD254528  Ambrosia dumosa A. C. Sanders, Jim Malusa 2016-3-8 42161 Imperial Sonoran (Colorado) Desert: NE side of Chocolate Mountains, along Dietz Rd., 1.7 km east of intersection with Skyline Dr., along boundary of Chocolate Mtns. Aerial Gunnery Range (Little Mule Mountains 7.5'Q) 313 Comment
  SD254797  Ambrosia dumosa Susan T Welker 1992-3-19 San Diego Adjacent to S-22, approx I(c) mile west of Borrego Springs 206 Comment
  SD256673  Ambrosia dumosa J. M. Andre 2013-9-26 25840 San Bernardino Ivanpah Valley; Mojave National Preserve; west end of valley, 0;5 mile west of IvanpahRd., ca. 5.0 miles south of I-15, just south of MNP border. 856 Comment
  SD256674  Ambrosia dumosa J. M. Andre 2013-9-14 25562 San Bernardino Shadow Valley; along major powerline, 1.1 mile NW of Jct Cima Rd and Interstate 15 at Valley Wells, 0.4 mile west of Excelsior Mine Rd. 1116 Comment
  SD258011  Ambrosia dumosa Nancy Nenow, Lawrence Glacy 2003-4-11 12 San Diego Anza-Borrego Desert State Park; Canebrake Canyon; 0.64 mile NW of junction Canebrake Canyon Road and Highway S-2; near Lois Neyenesch cabin on Tierra Blanca Lane. 312 Comment
  SD258848  Ambrosia dumosa Sarah J. De Groot 2016-3-22 7696 San Bernardino Clipper Mountains, S side, just W of Bonanza Spring; road NS 206 ca. 3 miles NW of Highway 66; South of interstate 40, northwest of Danby, west-southwest of Essex; Collection of slopes above spring and wash west of it; Slope generally facing southeast 641 Comment
  SD259964  Ambrosia dumosa J. M. Andre 2013-3-27 24843 Riverside Riverside Mountains; along Wilson River Crossing Rd., 0.8 mi. east of Hwy 95, 12.4 mi. south of Vidal Jct. Sandy bluffs above Solo. River flood plain. 114 Comment
  SD260171  Ambrosia dumosa A. C. Sanders, Jim Malusa 2016-3-14 42174 Imperial Sonoran (Colorado) Desert: Chocolate Mountains, along old Niland-Blythe Rd., 1.92 km NE of Siphon 8 on the Coachella Canal, NE of Slab City. 50 Comment
  SD26399  Ambrosia dumosa Allen Keller 1939-3-25 121 Inyo 3 miles north of State Range Crossing, Argus Mountains. Comment
  SD268849  Ambrosia dumosa Sarah J. De Groot, Linda Worlow 2016-3-30 7732 San Bernardino North side of SE tip of funeral mountains; NW of Death Valley Junction, W of Highway 127, N of Bat Mountain 4950, W of Bat Mountain 3279; Amargosa River drainage; Slope 5 degrees facing N18W; Rocky wash of boulders and gravel, and rock-strewn bajada 786 Comment
  SD30765  Ambrosia dumosa Edith A. Purer 1933-3-25 4949 San Diego Borrego Valley. Comment
  SD30766  Ambrosia dumosa Edith A. Purer 1935-4-21 6455 Riverside Desert floor, western Colorado Desert. Comment
  SD30767  Ambrosia dumosa Edith A. Purer 1935-4-19 6287 San Diego Box Canyon, east of Banner. Comment
  SD5655  Ambrosia dumosa unknown 1920-4-1 San Diego Carrizo Creek. Comment
  SD5656  Ambrosia dumosa Mary S. Snyder 1895-4-1 Riverside Palm Springs [label uses old name, Palmetto Spring] 274 Comment
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Jul 8 2010
  SD5999  Ambrosia dumosa unknown 1933-5-29 San Bernardino Stoddard Wells, 14 miles north of Victorville Comment
  SD83092  Ambrosia dumosa Helen V. Witham 1972-12-12 1763 Imperial Common, washes, Painted Gorge 149 Comment
  SD85444  Ambrosia dumosa R. Mitchel Beauchamp, R. C. Pierce 1971-3-13 1804 San Diego North side of SD & AE Railroad track, 2 miles northwest of Dos Casbezas Station, Anza-Borrego Desert State Park. 600 Comment
  SD8857  Ambrosia dumosa Daniel Cleveland 1885-6-25 Imperial Mountain Springs Grade. Comment
  SDSU11447  Ambrosia dumosa Mary Dellavalle 1995-4-10 10 IV95I San Bernardino 20.6 miles from junction of Johnson and Stoddard Wells Rd. on Stoddard Wells Rd. between Victorville and Barstow CA. 1000 Comment
  SDSU18098  Ambrosia dumosa Judy Newhauser 1982-4-18 San Bernardino Lava Wash, MCAGCC Twentynine Palms, CA 217 Comment
  SDSU19479  Ambrosia dumosa Michael V. Niemeyer 2010-4-10 3 San Diego Anza Borrego Desert State Park. Carrizo Badlands Overlook, ca. 0.4 miles southeast of junction with road to Canyon Sin Nombre. 368 Comment
  SDSU21550  Ambrosia dumosa Paul C. Silva 1941-3-29 San Diego Foot of Palm Canyon, Borego Valley, Colorado Desert, San Diego County, California. 251 Comment
  SDSU6231  Ambrosia dumosa A. H. Gallup 1949-3-28 355 Riverside Palms to Pines Hwy. above Desert Center [interpreted to be Palm Desert], east slope, San Jacinto Mt. Range 762 Comment
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Jan 30 2013
  SDSU6237  Ambrosia dumosa H. Wedberg 1962-3-23 843 Imperial Ten miles NE of Jacumba on road to El Centro. 762 Comment
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Nov 10 2008
  SDSU6243  Ambrosia dumosa Harvey 1937-4-6 1267 Inyo Near Bradbury's Well, Death Valley. Comment
  SDSU6249  Ambrosia dumosa H. Wedberg 1966-3-26 1133 Imperial At 2000' about 8 mi. from Jacumba on the road to El Centro. 610 Comment
  SDSU6269  Ambrosia dumosa R. D. Harwood 1931-4-3 1637 San Diego San Felipe Valley. Comment
  SDSU7095  Ambrosia dumosa unknown San Diego Borrego. Comment
  SDSU7096  Ambrosia dumosa R. Dixon 1942-5-16 113 San Diego Jacumba, S slope Sombrero Butte. Comment
  SEINET10882136  Ambrosia dumosa John R. Stone, Sharon A. Bodine 2000-4-4 Stone 2857 San Bernardino Ca. 10 km west of Rt. 62/ Rt. 177 junction on Rt. 62. Desert scrub. Mojave Desert. 540 Comment
  SEINET10887038  Ambrosia dumosa Greg Gust, Leith Nye 2005-3-3 Gust 455 Imperial BLM Land just NE of Ogilby about 20 miles NW of Yuma off of Hwy 534 on American Girl Mine Rd. Desert Scrub. 159 Comment
  SEINET13237107  Ambrosia dumosa A. C. Sanders, J. Malusa, M. Baker, M. Cloud-Hughes 2016-1-19 41890 Imperial Sonoran (Colorado) Desert: Chocolate Mountains Aerial Gunnery Range, Pegleg Well Rd (Salvation Pass Rd) above Niland. 98 Comment
  SEINET1906838  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter, Lauren Machen 2003-1 3255 San Bernardino Whipple Mountains: Wash beside Atchison, Topeka, and Santa Fe Railroad tracks, just E of Vidal and Highway 95. 176 Comment
  SEINET1906850  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter 2003-1 3225 San Bernardino Whipple Mountains: Along Highway 95 between Vidal Junction and Vidal. 239 Comment
  SEINET1906889  Ambrosia dumosa Sarah J. De Groot, J. mark Porter, Naomi Fraga 2003-1 2851 San Bernardino Whipple Mountains: West slope at north end of Savahia Peak, mid to low elevation. 530 Comment
  SEINET1908292  Ambrosia dumosa Sarah De Groot, J. mark Porter, Maomi Fraga, Lauren Machen 2003-1 2636 San Bernardino Whipple Mountains: SE side along aquaduct road, SW of Bowman's wash. 377 Comment
  SEINET1908310  Ambrosia dumosa Sarah J. De Groot 2004-1 3886 San Bernardino Whipple Mountains: South side of range, road past Vista Peak, near Highway 62 218 Comment
  SEINET1908399  Ambrosia dumosa Sarah J. De Groot, Angela Gatto 2003-1 2488 San Bernardino WHIPPLE MOUNTAINS: Bluff northwest of Monument Peak, south side of Copper Basin. Saddle near summit. 719 Comment
  SEINET1908484  Ambrosia dumosa Sarah J. De Groot, Angela Gatto 2003-1 2454 San Bernardino WHIPPLE MOUNTAINS: Old road heading west from Copper Basin, off Bowman's wash road. 421 Comment
  SEINET1909471  Ambrosia dumosa Sarah De Groot, Tasha LaDoux 2003-1 2989 San Bernardino Whipple Mountains: West side of range, along olf Needles-Parker road. Dark volcanic bluff east of road and course sandy wash. 476 Comment
  SEINET1909521  Ambrosia dumosa Sarah De Groot, Lee DeGroot 2003-1 2209 San Bernardino Whipple Mountains: Chemehuevi Wash at junction with Highway 95, north of Vidal Junction. 335 Comment
  SEINET1909647  Ambrosia dumosa Sarah J. De Groot, Lee DeGroot 2003-1 2192 San Bernardino Whipple Mountains: Wash along highway 95 about 6 miles N of Vidal Junction, W of Savahia Peak. 358 Comment
  SEINET1909847  Ambrosia dumosa Sarah J. De Groot, J. Mark Porter, Naomi Fraga, Lauren Machen 2003-1 2703 San Bernardino Whipple Mountains: S/SE side along aqueduct road, SW of Bowman's wash 298 Comment
  SEINET1956177  Ambrosia dumosa Marc A. Baker, Shawn Johnston 2010-4-12 17041 San Bernardino Cady Mountains, 57km east of Barstow, 9km north of Pisgah Crater 765 Comment
  SEINET2030053 Image available Ambrosia dumosa C. L. Hitchcock 1940-4-30 6238 Inyo 4 miles west of Lone Pine Comment
  SEINET2043626 Image available Ambrosia dumosa C. M. Hanagan 1971-5-22 Riverside Approximately 1/4 mi. from the corner of Sunnyslope and Bagley Drive in 29 Palms Comment
  SEINET2043627 Image available Ambrosia dumosa Harry Tate, Elinor Lehto 736 Unknown Ogilby Road, 1 Mi N of U.S. 80 (w. of Yuma) Comment
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Jan 8 2016
  SEINET2043628 Image available Ambrosia dumosa R. M. Beauchamp, R. C. Pierce 1971-3-13 1804 San Diego North side of Sd & AE RR track, 2 mi NW of Dos Cabezas Station, Anza-Borrego Desert State Park 600 Comment
  SEINET2043629 Image available Ambrosia dumosa Bruce D. Parfitt 1985-4-20 3339 San Bernardino About 13 mi. S. of Needles city limit on US Hwy. 95. 610 Comment
  SEINET2055789 Image available Ambrosia dumosa George K. Helmkamp, E. A. Helmkamp 2001-3-17 6290 Imperial Colorado Desert; Ogilby Rd. 15.4 mi south of CA-78. 168 Comment
  SEINET2059789 Image available Ambrosia dumosa Joni Ward, Wendy Hodgson, Dawn Goldman, Dave Martinez 2007-4-24 dbg- 13 San Diego Mountain Springs Grade, 6 mi ENE of Jacumba, W of Interstate 8, 0.18 mi W of Imperial County line, 0.87 mi S of Devil's Canyon, W of stone corral, in wash at culvert, up drainage past spring. 741 Comment
  SEINET2073814  Ambrosia dumosa R. Haberle 1998-5-8 109 a San Bernardino 9.2 miles N of Hinkley, CA, NW of Barstow , CA. 800 Comment
  SEINET2073815  Ambrosia dumosa R. Haberle 1998-5-8 109 a San Bernardino 9.2 miles N of Hinkley, CA; NW of Barstow CA. 800 Comment
  SEINET2080742  Ambrosia dumosa R. W. Scott, T. Ayers 1991-5-13 965 San Bernardino Granite Springs, 4.1 mi. N of I-40 on Kelbaker Rd. and 1.2 mi. W of Kelbaker Rd. past microwave station Comment
  SEINET2117480  Ambrosia dumosa G. Goodwin 2009-3-29 1849 Inyo 10 miles SE of Panamint Springs, adjacent to the Panamint Valley Road 500 Comment
  SEINET2148842  Ambrosia dumosa J. G. Harris 1992-1 2371 Inyo Death Valley, Jubilee Pass. 366 Comment
  SEINET2149243  Ambrosia dumosa J. G. Harris 2000-1 2805 San Bernardino Mojave Desert near Kelso. Comment
  SEINET269019 Image available Ambrosia dumosa T. Vuong Pham 1995-4-15 0040 Inyo 11 miles from Shoshone on route 127 intersection of route 178 476 Comment
  SEINET3002938  Ambrosia dumosa G. Goodwin 2011-11-29 3235 San Bernardino NW of Needles, east side of the Dead Mountains about 1 mile west of River Bend Highway 240 Comment
  SEINET3004439  Ambrosia dumosa G. Rink, J. Andre, K. Christie 2010-4-10 9050 San Bernardino Mojave Desert, about 35 miles east of Barstow, south slopes of the Cady Mtns 762 Comment
  SEINET3011921 Image available Ambrosia dumosa A. C. Sanders, A. Howald, Fred M. Roberts, et al 2009-3-25 36558 San Bernardino Mojave Desert: Cady Mountains, 3.5 mi. SW of Broadwell Lake, c. 2.5 mi. NE of Sleeping Beauty Mtn. (Broadwell Lake/Sleeping Beauty 7.5' Qs.). 579 Comment
  SEINET3025478 Image available Ambrosia dumosa A. C. Sanders, A. Howald, Fred M. Roberts, et al 2009-3-25 36560 San Bernardino Mojave Desert: Cady Mountains, 3.5 mi. SW of Broadwell Lake, c. 2.5 mi. NE of Sleeping Beauty Mtn. (Broadwell Lake/Sleeping Beauty 7.5' Qs.). 579 Comment
  SEINET3133458  Ambrosia dumosa S. B. Parish 1907-4-23 6092 Riverside W border of the Colorado desert; S CA 150 Comment
  SEINET3146794  Ambrosia dumosa M. E. Jones 1884-5-3 3806 San Bernardino The Needles Comment
  SEINET3146797  Ambrosia dumosa L. S. Rose 1936-12-26 36827 Riverside Hayfield, 7 mi. W of Desert Center 762 Comment
  SEINET3197209 Image available Ambrosia dumosa Mike Bell 2008-3-19 047 Riverside Sonoran (Colorado) Desert; Coachella Valley; 2 miles west of Desert Hot Springs, north of Pierson Blvd. and west of North Indian Canyon Dr. (Desert Hot Springs 7.5') 396 Comment
  SEINET3197455  Ambrosia dumosa Marc A. Baker, with Shawn Johnston 2010-4-12 17041 San Bernardino Cady Mountains, 57km east of Barstow, 9km north of Pisgah Crater 765 Comment
  SEINET3289421 Image available Ambrosia dumosa Loraine Yeatts, Dick Yeatts 2005-3-30 5100 Inyo Death Valley N.P., Black Mts., Ashford Canyon at end of 4WD mine road. 573 Comment
  SEINET3523221 Image available Ambrosia dumosa Jim Andre 2010-3-23 12466 San Bernardino Mojave Desert: Bristol Mountains, along dirt road at large wash crossing 7 mi south of Hwy I-40, 0.5 mi west of Kelbaker Road. 480 Comment
  SEINET3829077  Ambrosia dumosa J. Mark Porter, O. Mistretta, S. Hobbs 2002-1 13404 Imperial Imperial Dunes Recreation area. (Algodones Dunes) ca. 0.5 mi. WSW of Ogilby, W of Country road S 34. 95 Comment
  SEINET3840417  Ambrosia dumosa Unknown 1937-4-2 511 Inyo Near Ballarat, West side Panamint Valley 450 Comment
  SEINET4001667 Image available Ambrosia dumosa C. Davidson 1973-1 1717 Inyo Death Valley National Monument Rhodes Wash below Junction withBradbury Wash, 1/2 mile southwest of Jubilee Pass on St 178. Comment
  SEINET4558888  Ambrosia dumosa J. Andre 2012-1 23457 San Bernardino Piute Range; Mojave National Preserve; far south end of Puite Range, 0.8 mi. west of powerlive (Walter Road), approx. 8 mi. N. of Hwy 66. 7 mi west of hwy 95 Comment
  SEINET4558902  Ambrosia dumosa J. Andre 2012-1 23417 San Bernardino Granitic Mountains; UC Granite Mnts Desert Research Center, along eastern flanks of range just south of Bunny Club, just north of Kissing Rocks, in drainage among boulders. 1215 Comment
  SEINET4559160  Ambrosia dumosa J. Andre 2011-1 22567 San Bernardino Mojave National Preserve; along US Hwy 66 (Natl. Trails Hwy) just west of Goffs. north side of road. Comment
  SEINET4559171  Ambrosia dumosa J. Andre 2012-1 23138 San Bernardino Kingston Range; along Excelsior Mine Rd, approx. 18 mi N of interstate 15, at SE end of range. 1036 Comment
  SEINET4560232  Ambrosia dumosa J. Andre, Rufous 2011-1 21458 San Bernardino Granite Mountains; Mojave National Preserve; lower Willow Springs Basin at base of eastern fork. 1170 Comment
  SEINET5586180  Ambrosia dumosa J. Andre 2012-1 22617 San Bernardino Mojave National Preserve; along Essex Road, just south of Jct with Black Canyon Rd, 9.7 mi. north of Interstate 40. Quad: Colton Well. 896 Comment
  SEINET6066489  Ambrosia dumosa Unknown 1988-3-27 3938 Inyo Death Valley National Monument. Along State Hwy 374; southwest of Beatty, Nev.; Beatty cutoff ca 3 mi from State Hwy 190. Comment
  SEINET6800336  Ambrosia dumosa G. Goodwin 2015-3-17 4928 San Bernardino West side of Homer Mountain along the power-line road about 10 miles north of Goffs 823 Comment
  SEINET735848  Ambrosia dumosa L. R. Landrum 1998-12-24 9367 Riverside West Palm Springs exit of Hwy 10 across street from Motel 6 in small remnant of desert vegetation. Comment
  SEINET7987807  Ambrosia dumosa Jon P. Rebman 1996-10-27 3769 Imperial Algodones Dunes, N of Glamis; Algodones Dunes 60 Comment
  SEINET7987809  Ambrosia dumosa Jon P. Rebman 1997-9-6 4206 Imperial Plaser City, W of Plaster City, along Painted Gorge Road 40 Comment
  SEINET7987812  Ambrosia dumosa Jon P. Rebman 2000-4-19 6526 Imperial NW of El Centro, about 4 miles S of San Sebastian, Natural area and San Felipe Wash,W of Salton Sea and E of Fish Creek Mountains Comment
  SEINET8071536 Image available Ambrosia dumosa Deidre Conocchioli, Billy Sale 2013-10-23 112 Imperial Mojave Desert; West Mojave desert Region: North of Yuha Desert. From El Centro: Take I-8 W for 13.3 miles. Exit at Dunaway Rd, turn right onto Dunaway road and continue for 0.7 miles to collection site on west side of road. 2 Comment
  SEINET8071625 Image available Ambrosia dumosa Deidre Conocchioli, Caitlin Elam 2013-10-1 73 Riverside Colorado Desert: Chocolate-Chuckwalla Mts.: E of Little Chuckwalla Mts. From Blythe take I-10 W for 17.8 mi, take the Wiley's Well Rd. exit. Turn left (S) on Wiley's Well Rd travel 1.3 mi on paved and then 4.5 mi on unpaved road. 177 Comment
  SEINET8507193 Image available Ambrosia dumosa Deidre Conocchiolo, Duncan S. Bell 2014-3-17 169 San Bernardino Just S of I-40 0.8 miles E of Newberry Springs off Quarry Road. 607 Comment
  SEINET895752  Ambrosia dumosa Jon P. Rebman, N. Nenow, C. Glacy, G. & M. Brooks, Gonyer 2005-1 11259 San Diego Anza-Borrego Desert State Park: west of Ocotillo; eastern base of Jacumba Mountains; vicinity of Mortero Palms northwest of Dos Cabezas Spring. 595 Comment
  SEINET952955  Ambrosia dumosa Sarah J. De Groot, Mark Porter, Naomi Fraga, Lauren Machen 2003-1 2786 San Bernardino Whipple Mountains. South side of range along Colorado River aqueduct west of Chamber's Well road. 285 Comment
  SFV11884  Ambrosia dumosa R. H. Swade 1963-12-7 s. n. Riverside Colorado Desert Open desert west of Snow Creek Road, about 3 miles south of Interstate 10 intersection with California State Highway 111. 366 Comment
  SFV15605  Ambrosia dumosa B. de Guzman May 1992 8 San Bernardino Mojave Desert Kel-Baker Road, 20 miles east of Interstate Highway 15. Comment
  SFV17216  Ambrosia dumosa J. W. Dole 1980-11-1 s. n. Riverside Snow Creek road, 1 mile from junction of Highway 111 and Interstate Highway 10. 360 Comment
  SFV3699  Ambrosia dumosa K. A. Wilson 1961-3-29 1086 Inyo Death Valley Death Valley. Trail Canyon Road. Comment
  SFV3923  Ambrosia dumosa M. L. Vincent, R. H. Swade 1963-10-19 468 A Riverside On California State Highway 74 about 6 miles south of Palm Desert. Roadside. Comment
  SFV3924  Ambrosia dumosa K. A. Wilson, C. J. George 1961-3-4 902 Inyo Death Valley Funeral Mountains. Keane Wonder Mine Road. Sandy wash. Comment
  SFV3925  Ambrosia dumosa K. A. Wilson, C. J. George 1961-3-5 930 Inyo Panamint Valley. 5.3 miles south of Ballarat Road on Trona-Death Valley Highway. In sandy, gravelly wash. Comment
  SFV6344  Ambrosia dumosa T. Gordon, M. H. Grayum, L. R. Ballou, S. Ballou, K. A. Wilson 1974-3-2 60 Riverside Little San Bernardino Mountains Little San Bernardino Mountains. Berdoo Canyon. Comment
  SJSU11706  Ambrosia dumosa R. C. McGehee 1970-4-18 218 San Bernardino Amboy Road, 13 miles E of Twenty-nine Palms Comment
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Jun 18 2013
  SJSU1456  Ambrosia dumosa C. W. Sharsmith 1954-3-20 6121 Inyo northern arm Death Valley about 10 mile S of Ubehebe Crater 548 Comment
  SJSU1457  Ambrosia dumosa C. W. Sharsmith 1954-3-20 6121 .5 Inyo northern arm of Death Valley about 10 miles S of Ubehebe Crater 548 Comment
  SJSU5189  Ambrosia dumosa S. M. Kaune 1962-12-17 676 Unknown Valle Trinidad Road c. 35 mi NW of San Felipe 609 Comment
  UC1046467  Ambrosia dumosa A. D. Hawkes and R. Bacigalupi 1951-4-27 4919 San Bernardino on route 66 beyond Daggett; Mojave Desert Comment
  UC1094028  Ambrosia dumosa Lewis S. Rose 1956-5-4 56053 Kern Mohave Desert 838 Comment
  UC1118434  Ambrosia dumosa E. Armstrong 1934-3-28 10 Kern 4 mi sw Ricardo; Mojave Quad. 731 Comment
  UC1118435  Ambrosia dumosa E. Armstrong 1934-3-30 1053 Inyo 6 mi n Olancha; Haiwee Quad. 914 Comment
  UC1118436  Ambrosia dumosa A. E. Wieslander 1931-4-3 171 San Diego San Felipe Wash; Vallecito Quad. 304 Comment
  UC1118437  Ambrosia dumosa H. S. Yates 1936-4-8 5436 Riverside 2 mi se Willis Palm; Thermal Quad. 243 Comment
  UC1118438  Ambrosia dumosa D. Axelrod 1935-4-28 311 San Bernardino 2 mi ne Fifteenmile Point; Deep Creek Quad. 914 Comment
  UC1118439  Ambrosia dumosa H. S. Yates 1936-4-7 5416 Riverside Palm Springs; San Jacinto Quad. 137 Comment
  UC1176845  Ambrosia dumosa Lewis S. Rose 1956-5-4 56053 Kern sandy desert Mojave; Mojave Desert 838 Comment
  UC1225466  Ambrosia dumosa Albert C. Hawbecker 1957-4-28 9147 Kern 14 mi w, (Last Chance Canyon) Randsburg; Last Chance Canyon Comment
  UC126599  Ambrosia dumosa H. M. Hall and H. P. Chandler 1906-5-15 7051 Inyo Panamint Canon 914 Comment
  UC126686  Ambrosia dumosa H. M. Hall and H. P. Chandler 1906-6-5 7317 Inyo w shore Owens Lake 1097 Comment
  UC1287128  Ambrosia dumosa C. L. Hitchcock 1966-3-17 24235 San Diego 6 mi w Ocotillo Well Comment
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Jan 8 2013
  UC1303153  Ambrosia dumosa Roxana S. Ferris 1930-6-14 8009 San Bernardino below, (along the Mojave River) Daggett; Mojave River Comment
  UC1329946  Ambrosia dumosa James E. Cole 1941-4-13 569 Riverside .5 mi n Meek's Cabin; Joshua National Monument, Pinto Pass Comment
  UC1334678  Ambrosia dumosa Nancy Ryan Zabriskie 1969-4-1 179 Riverside near Palm Springs; Andreas Canyon Comment
  UC1366082  Ambrosia dumosa Nancy Ryan Zabriskie 1969-4-27 206 Riverside near, (Andreas Canyon) Palm Springs; Andreas Canyon 365 Comment
  UC1440650  Ambrosia dumosa F. Seaman 1971-4-7 26 (A) Imperial 19 n of intersection of 86 and hwy 78 State Hwy 86 Comment
  UC1518623  Ambrosia dumosa Robert F. Thorne, Drs. Fosberg, Sachet, and Herbst 1983-4-23 55425 Riverside e of, (mouth of Whitewater Canyon) Whitewater Post Office; San Bernardino Mts., Whitewater Canyon 411 Comment
  UC1535056  Ambrosia dumosa James D. Morefield and Douglas H. McCarty 1986-5-4 3575 e Inyo 2.4 mi N85 deg W of summit, (just ne of warm sprs at w base) Black Mountain; White Mountains, Owens Valley 1249 Comment
  UC1536876  Ambrosia dumosa G. H. True Jr. 1935-4-23 249 San Diego Vallecitos; Campbell Ranch 548 Comment
  UC1539707  Ambrosia dumosa Chas. B. Fiker 1946-4-18 3417 Riverside w side Colorado Desert Comment
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Mar 23 2014
  UC1563604  Ambrosia dumosa F. C. Vasek 1978-5-8 San Bernardino Music Valley, ca 8 mi SE of Twenty-nine Palms; Twenty-nine Palms Comment
  UC1719690  Ambrosia dumosa Steve Boyd, Sula Vanderplank, Valentin Arvizu 2004-10-13 11595 San Bernardino Mojave Desert; East Mojave Desert region; Ivanpah Valley, upper bajada at northeastern base of the Ivanpah Mountains, south of Interstate 15. Comment
  UC1719691  Ambrosia dumosa Steve Boyd, Michael Denslow 2004-3-23 10583 San Bernardino Mojave Desert; Central Mojave Desert region; Lavic Mountain, southern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) along powerline/pipeline access road. Comment
  UC1751079  Ambrosia dumosa Annetta M. Carter, Ethel Crum, Elsie Osgood 1937-5-6 1284 San Bernardino Ridge E of summit of Mule Canyon, Calico Mts. Comment
  UC1922419  Ambrosia dumosa Naomi Fraga, Lisa Rojas 2005-2-10 1415 Riverside Colorado Desert; Northeastern Colorado Desert region; Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 502 Comment
  UC1927473  Ambrosia dumosa Naomi Fraga, Genie Fraga 2003-4-12 551 Kern Sierra Nevada; Southern Sierra Nevada region; THE OWENS PEAK EASTERN WATERSHED. Five Fingers, near aqueduct road. 1159 Comment
  UC1927503  Ambrosia dumosa Naomi Fraga, Michael Denslow 2003-4-8 481 Kern Sierra Nevada; Southern Sierra Nevada region; Owens Peak Eastern Watershed. Lower sand dunes between Short Canyon and Grapevine Canyon. 854 Comment
  UC1928416  Ambrosia dumosa Steve Boyd 2007-11-1 11818 San Bernardino Mojave Desert; East Mojave Desert region; Orange Blossom wash area in alluvial basin between central portion of Bristol Mountains on west and northern end of Marble Mountains on east along gas pipeline road, west of Kelbaker Road, south of Interstate 40. 732 Comment
  UC1928620  Ambrosia dumosa Steve Boyd 2007-10-29 11792 San Bernardino Mojave Desert; East Mojave Desert region; Brown Buttes area at northwestern end of Marble Mountains, on road to microwave towers east of Kelbaker Road, just south of Interstate 40. 915 Comment
  UC1979834  Ambrosia dumosa Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-4-6 986 Riverside Mojave Desert; Southcentral Mojave Desert region: Iron Mountains, on southwest side of mountains in drainage on either side of the road. Comment
  UC1979837  Ambrosia dumosa Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-31 946 Riverside Mojave Desert; East Mojave Desert region: Wash crossing Midland Rice Road, near saddle between Little Maria Mountains and Big Maria Mountains. Comment
  UC1980229  Ambrosia dumosa LeRoy Gross 2009-4-6 3744 San Bernardino Mojave Desert; Northcentral Mojave Desert region: Southwest section of the Cady Mountains: Areas North and east of Black Butte Mine, northwest of the Sleeping beauty section. Southeast of the transmission line road. Started near 34.81756N 116.34121W traveled SE to small saddle that had little amount of sand blowed on the slope to the east of this, near 34.80312N 116.33066W. Then west to Black Butte Mine, and follow a drainage NNE from the mine site. Comment
  UC1981746  Ambrosia dumosa C. Braun with S. Finch & F. Wang 2011-3-19 011 Inyo Near bottom of alluvial fan in Panamint Valley, 21.7 miles southeast of Panamint Springs. Comment
  UC1982074  Ambrosia dumosa S. J. De Groot with Mary Motheral 2010-4-23 6256 San Bernardino Calumet Mountains: SE side, isolated hill of granite boulders. N of Hwy 62 along road to salt evaporators on Cadiz Lake. Comment
  UC218034  Ambrosia dumosa P. A. Munz, D. Keck 1922-4-13 4934 Riverside slope of Aushurtz Canyon; Colorado Desert, Eagle Mts. 274 Comment
  UC220209  Ambrosia dumosa Katharine Brandegee San Bernardino Barstow Comment
  UC303984  Ambrosia dumosa S. B. Parish 1918-5-3 11840 San Bernardino Hesperia; Mojave Desert Comment
  UC31939  Ambrosia dumosa S. B. Parish Apr 4 1896-Apr 13 1896 4121 Riverside Palm Springs, (Agua Caliente); San Jacinto Mt. 152 Comment
  UC34482  Ambrosia dumosa H. M. Hall 1902-4-12 2855 San Diego at, (in the Lower Sonoran Zone, w borders of Colorado Desert) Coyote Canyon; Colorado Desert 152 Comment
  UC380590  Ambrosia dumosa Marcus E. Jones, A. M. 1884-5-3 3806 San Bernardino The Needles Comment
  UC403404  Ambrosia dumosa H. E. and S. T. Parks Feb 1929 392 Imperial along shore Salton Sea Comment
  UC406767  Ambrosia dumosa Marcus E. Jones, A. M. 1929-9-16 25074 Riverside e of Desert Center Comment
  UC440346  Ambrosia dumosa Carl Epling, Lincoln Ellison, and Harvey Anderson 1930-4-17 Inyo alluvial fan Ophir Mine; Mojave Desert, Slate Mountains Comment
  UC472286  Ambrosia dumosa Joseph Grinnell 1910-5-10 San Bernardino near, (in dry sandy valleys, Colorado River) Pilot Knob; Colorado River Comment
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Jan 8 2013
  UC472288  Ambrosia dumosa Tracy Storer 1917-5-12 Inyo Shoshone Comment
  UC476961  Ambrosia dumosa Mrs. G. Earle Kelly 1932-3-22 San Bernardino Barstow Comment
  UC484063  Ambrosia dumosa C. B. Wolf 1931-3-14 Imperial 5 mi w, on rd to Mountain Springs Coyote Wells 152 Comment
  UC488883  Ambrosia dumosa C. V. Meyer 1927-4-9 55 San Diego Narrows; San Felipe Wash Comment
  UC504891  Ambrosia dumosa Bonar and Holman 1933-3-31 Inyo Townsend Pass; Panamint Mountains Comment
  UC51602  Ambrosia dumosa Jos. Burtt Davy 1902-4-1 8035 Imperial Flowing Wells Comment
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Apr 13 2009
  UC519938  Ambrosia dumosa Joseph Andorfer Ewan 1932-4-8 7029 Riverside near Garnet; Colorado Desert, Seven Palms Comment
  UC596615  Ambrosia dumosa Rensselaer J. Smith 1900-1 317 Riverside Conchilla Desert Comment
  UC61510  Ambrosia dumosa L. D. Copeland 1904-5-1 6 Riverside Palm Springs Comment
  UC62863  Ambrosia dumosa H. M. Hall May 17 1901-Jun 1 1901 1868 Riverside near, (journey of Jepson & Hall from Riverside to Santa Rosa Pk & Palomar) Palm Canon 609 Comment
  UC665844  Ambrosia dumosa Ira L. Wiggins 1941-3-25 9622 Imperial 8.7 mi ne, (desert bajada on rd to Beal Well and Blythe) Niland Comment
  UC665877  Ambrosia dumosa Ira L. Wiggins 1941-3-24 9575 Riverside 2.7 mi s of, along e side of Salton Sea Mortmar; Salton Sea Comment
  UC667465  Ambrosia dumosa Annie M. Alexander and Louise Kellogg 1940-4-25 1218 San Bernardino canyon on n side Whipple Mts. 304 Comment
  UC675861  Ambrosia dumosa Bell and Gustafson 1941-5-17 5 San Bernardino area adjacaent to Mojave Desert 914 Comment
  UC68912  Ambrosia dumosa H. M. Hall 1905-4-1 5907 Riverside near Mule Springs; Colorado Desert Comment
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Sep 11 2011
  UC68916  Ambrosia dumosa H. M. Hall 1905-5-1 6103 San Bernardino Ash Hill; Mohave Desert Comment
  UC724342  Ambrosia dumosa Aven Nelson, Ruth A. Nelson 1939-3-30 3340 Riverside near, on Hwy 60; Desert Center Comment
  UC724343  Ambrosia dumosa Aven Nelson, Ruth A. Nelson 1939-3-28 3297 Riverside near n end, on Hwy 111, Salton Sea Comment
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Jul 14 2012
  UC75926  Ambrosia dumosa Miss Mary McKibben Riverside Mecca; Colorado Desert Comment
  UC88774  Ambrosia dumosa C. A. Purpus 1898-5 5744 Inyo (Lone Pine - Owens Valley) Owens Valley 914 Comment
  UC88775  Ambrosia dumosa T. S. Brandegee 1901-3-30 Imperial (near Boundary line) Signal Mt.; Colorado Desert Comment
  UC88776  Ambrosia dumosa K. Brandegee 1899-5-1 San Diego Mason's; Colorado Desert Comment
  UC88777  Ambrosia dumosa T. S. Brandegee 1896-4-11 San Diego Agua Caliente Comment
  UC88778  Ambrosia dumosa T. S. Brandegee 1894-4-28 San Diego Boregos Springs Comment
  UC896713  Ambrosia dumosa C. L. Hitchcock 1940-4-19 6113 Inyo 10 mi n Shoshone; Death Valley 914 Comment
  UC896714  Ambrosia dumosa C. L. Hitchcock 1940-4-30 6238 Inyo 4 mi w, in low foothills of mountains Lone Pine Comment
  UC896715  Ambrosia dumosa C. L. Hitchcock 1940-3-29 5860 Riverside 100 yds e Spring; Cottonwood Canyon Comment
  UC896716  Ambrosia dumosa I. W. Clokey and B. C. Templeton 1930-4-9 4705 Riverside n of Palm Springs; Colorado Desert 170 Comment
  UC896717  Ambrosia dumosa I. W. Clokey 1935-4-17 6729 Riverside Mecca to Shaver's Wells; ; as Mecca-Shafer Wells Comment
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Apr 24 2011
  UC896718  Ambrosia dumosa Lewis S. Rose 1938-2-4 38047 Imperial Plaster City 0 Comment
  UC896719  Ambrosia dumosa Percy Train 1937-4-2 Inyo near, w side Panamint Valley Ballarat; Panamint Valley 457 Comment
  UC896725  Ambrosia dumosa Alice Eastwood 1913-4-30 2990 Riverside Palm Springs Comment
  UC896726  Ambrosia dumosa Alice Eastwood 1913-4-14 2730 San Diego Yaqui Wells; Colorado Desert Comment
  UC896727  Ambrosia dumosa L. R. Abrams 1927-5-1 11832 Kern between Cinco and Jawbone Canyon Rd. Owens Valley Rd.; Mojave Desert Comment
  UC896736  Ambrosia dumosa I. W. Clokey and B. C. Templeton 1935-4-6 5716 Inyo fan below Emigrant Canyon; Death Valley 150 Comment
  UC912235  Ambrosia dumosa Herbert L. Mason 1926-4-28 3096 San Bernardino Box S Ranch Comment
  UC912554  Ambrosia dumosa H. L. Mason 1928-3-10 4217 Riverside Hidden Springs Canyon; Coachella Mts. Comment
  UCD121043  Ambrosia dumosa Kenneth A. Wilson 1964-4-11 1316 Imperial Orita Glamis Road, 3 miles east of East Highline Canal. Comment
  UCD128763  Ambrosia dumosa C. H. Lamoureux; George Mason, John Tothill, and Dean Dybing 1958-4-1 1303 Inyo Death Valley National Monument. Near junction of road to Keane Wonder Mine with main road. 304 Comment
  UCD128788  Ambrosia dumosa William H. Brooks 24-25 Feb 1989 s.n. Riverside McCoy Wash, north of Blythe. 579 Comment
  UCD128789  Ambrosia dumosa Sherwin Carlquist 1965-4-22 1705 Los Angeles Saddleback Butte, 19 miles east of Lancaster. Comment
  UCD128790  Ambrosia dumosa K. Esau 1935-6-21 s.n. San Bernardino Road to Adelanto Comment
  UCD128791  Ambrosia dumosa Richard R. Halse 1978-3-27 1726 Inyo along State Hwy. 190, 4.6 miles east of Panamint Springs, in the Panamint Valley. 470 Comment
  UCD128792  Ambrosia dumosa C. L. Hitchcock; C. V. Muhlick 1962-3-18 22232 Imperial 9.2 miles east of Glamis on road to Blythe. Comment
  UCD128793  Ambrosia dumosa C. L. Hitchcock 1966-3-17 24235 San Diego 6 mi. w. of Ocotillo Well. Comment
  UCD128794  Ambrosia dumosa C. F. Lackey 1935-3-21 8 San Bernardino Morongo. Comment
  UCD128795  Ambrosia dumosa Geoffrey Levin 1975-4-5 475 Riverside Box Canyon Wash on State Highway 195, 18.3 mi. NE of Jcn. Of 195 and 111 (Mecca). Between Mecca Hills and Orocopia Mountains. 30 Comment
  UCD128796  Ambrosia dumosa Geoffrey Levin 1976-10-17 1185 Riverside Box Canyon, about 11 mi. east of Mecca. 91 Comment
  UCD128797  Ambrosia dumosa Aven Nelson; Ruth A. Nelson 1939-3-28 3297 Imperial near the north end of Salton Sea, Highway 111. Comment
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Sep 11 2013
  UCD128798  Ambrosia dumosa Aven Nelson; Ruth A. Nelson 1939-3-30 3340 Imperial on Highway 60, near Desert center. Comment
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Aug 28 2016
  UCD128799  Ambrosia dumosa Ralph Phillips 1993-4-23 13 Kern Mojave Desert, Redrock-Inyokern Road, Last Chance Well. 975 Comment
  UCD128800  Ambrosia dumosa Gordon Pilone 1960-10-3 52 San Bernardino 0.75 mile north of Ranger Station in San Antonio Canyon on old road. San Gabriel Mountain Range. 762 Comment
  UCD128801  Ambrosia dumosa Burt Ray 1952-10-25 s.n. San Bernardino Lucerne Valley. Comment
  UCD128803  Ambrosia dumosa F. Seaman 1972-3-23 69 -4 San Diego 3 miles north of Ocotillo on State Highway S-2. Comment
  UCD128804  Ambrosia dumosa William Shapeero 1954-4-28 s.n. Riverside Joshua Tree National Monument. Comment
  UCD128805  Ambrosia dumosa T. I. Storer; J. E. Law 1925-3-29 354 San Diego near Guatay. Comment
  UCD128806  Ambrosia dumosa John C. Tothill 1958-4-1 56 Inyo Death Valley. Comment
  UCD128807  Ambrosia dumosa Scott. D. White 1995-4-6 2778 San Bernardino Southeast Mojave Desert. Cadiz Road, just N of Highway 62. 260 Comment
  UCD128808  Ambrosia dumosa Kenneth A. Wilson; C. J. George 1961-3-5 930 Inyo Panamint Valley, 5.3 miles south of Ballarat Road on Trona-Death Valley Highway. Comment
  UCD128809  Ambrosia dumosa Kenneth A. Wilson 1961-3-29 1086 Inyo Death Valley National Monument. Trail Canyon Road. Comment
  UCD128811  Ambrosia dumosa Walter W. Zabriskie 1973-2-8 102 Riverside at edge of Indian Canyon wash, Deep Canyon drainage, N slope Santa Rosa Mountains. 304 Comment
  UCD128813  Ambrosia dumosa C. A. Toft 1980-5-31 s.n. Inyo 12 miles E of Keeler, Highway 190. Comment
  UCD128814  Ambrosia dumosa C. A. Toft 1980-6-28 s.n. Inyo 12 miles E of Keeler, Highway 190. Comment
  UCD19749  Ambrosia dumosa C. H. Lamoureux; George Mason, John Tothill, and Dean Dybing 1958-4-1 1303 Inyo Death Valley National Monument. Near junction of road to Keane Wonder Mine with main road. 304 Comment
  UCD38403  Ambrosia dumosa B. Crampton 1955-4-26 2607 San Bernardino 9 miles south of Barstow. Comment
  UCD39041  Ambrosia dumosa Beecher Crampton 1962-5-23 6449 Imperial 7-8 miles west of Coyote Wells, along US Hwy. 80, Jacumba Mtns. 304 Comment
  UCD47084  Ambrosia dumosa Ellen Dean; Jim Andre, T. Metcalf, D. Tibor, I. Anderson 2005-3-25 2312 San Bernardino SE of town of Ludlow, S of Hwy. 40, along National Trails Rd. (Route 66), 9.4 road miles E of intersection of Hwy 40 and Route 66 at Ludlow. Take dirt road S from Route 66 0.2 road miles. 569 Comment
  UCD55605  Ambrosia dumosa Ellen Dean; Tim Metcalf 2005-3-25 2336 San Bernardino South of Granite Mountains and Mojave National Reserve. Along Kelbaker Road, just south of intersection with Hwy. 40. East side of road. 822 Comment
  UCD78264  Ambrosia dumosa Ellen Dean; T. Starbuck and M. Starbuck 2008-3-24 4604 Kern Just southwest of Red Rock Canyon State Park. Along Neuralia Road, just south of junction with Rork Rand Road. 632 Comment
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Dec 24 2010
  UCD83505  Ambrosia dumosa Ellen Dean; Tom Starbuck, Margaret Starbuck 2010-4-8 5845 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
  UCD83525  Ambrosia dumosa Ellen Dean; Tom Starbuck, Margaret Starbuck 2010-4-8 5866 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
  UCR100120  Ambrosia dumosa B. G. Pitzer 1997-10-19 3337 Imperial Sonoran (Colorado) Desert, SW foot of Cargo Muchacho Mtns; along Ogilby Rd (Hwy S34) at a point 6.1 mi north of railroad tracks at Ogilby & 3.6 mi south of Indian Pass Road 200 Comment
  UCR100206  Ambrosia dumosa B. G. Pitzer 1997-10-19 3361 Riverside Sonoran (Colorado) Desert, north foot of Chuckwalla Mtns., Eagle Mtn. Road on south side of Hwy I-10, c. 0.8 mi. south of Hwy at powerline road 500 Comment
  UCR101565  Ambrosia dumosa Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  UCR104054  Ambrosia dumosa George K. Helmkamp 1998-4-4 3119 San Bernardino Mojave Desert, S edge of Cadiz Dry Lake, 13.1 mi. north of mile-marker 76 on Calif. hwy 62 (Twentynine Palms Hwy), east of Twentynine Palms 183 Comment
  UCR104849  Ambrosia dumosa George K. Helmkamp, E. Helmkamp 1998-1-23 2562 Imperial Sonoran (Colorado) Desert, On the W side of Hwy 86, 18.8 mi. NW of Westmorland -30 Comment
  UCR104874  Ambrosia dumosa George K. Helmkamp 1998-4-4 3148 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR106315  Ambrosia dumosa Valerie Soza, K. Kramer 1998-6-25 328 San Bernardino San Bernardino Mtns, SE of Terrace Springs and west of Arrastre Creek 1402 Comment
  UCR107910  Ambrosia dumosa Jon P. Rebman, Adrienne Russell 1997-9-6 4206 Imperial Yuha Desert, West of Plaster City, along Painted Gorge Road, north of Hwy S-80 40 Comment
  UCR107921  Ambrosia dumosa Christopher Christie 1996-12-29 7 San Bernardino Southern Mojave Desert, wash out of Bullion Mountains, vicinity of Sheephole Pass 715 Comment
  UCR108097  Ambrosia dumosa Jon P. Rebman, Maggie Loy 1996-10-27 3767 Imperial Sonoran/Colorado Desert, Algodones Dunes, WNW of Glamis. 60 Comment
  UCR109566  Ambrosia dumosa R. D. Goeden, Don W. Ricker 1970-4-7 s.n. Imperial Sonoran (Colorado) Desert, c. 6 miles NW of Ocotillo, 0.9 mi. south of Hwy S2 at county line 305 Comment
  UCR109581  Ambrosia dumosa R. D. Goeden, Don W. Ricker 1970-5-14 s.n. Riverside Coachella Valley, Palm Springs, SW side of Hwy 111, 1.3 mi. SE of Overture Drive, at foot of San Jacinto Mtns. near Desert Angel peak 274 Comment
  UCR109689  Ambrosia dumosa R. D. Goeden, Don W. Ricker 1970-4-30 s.n. Los Angeles Mojave Desert, c. 7.5 mi. SE of Llano, SW side of State Hwy 138, 1.8 mi. SE of Pearblossom Highway 1073 Comment
  UCR111720  Ambrosia dumosa Mary DeDecker 1983-6-14 5456 Inyo Owens Valley, Alabama Hills 1524 Comment
  UCR112461  Ambrosia dumosa A. C. Sanders, D. Malueg, K. D. Jones 1998-6-4 21971 San Bernardino Eastern Mojave Desert, Old Dad Mtns., wash north of Jackass Canyon and east of Old Dad Mtn., under SCE powerlines 732 Comment
  UCR114167  Ambrosia dumosa B. G. Pitzer 1998-11-14 3804 San Bernardino Eastern Mojave Desert, National Trails Hwy (Rte. 66), 9.9 road mi east of jct with Kelbaker Rd, & c. 1.8 rd mi. [east] of Chambless, 0.3 road mi. east of Cadiz Summit 244 Comment
  UCR120526  Ambrosia dumosa George K. Helmkamp, E. A. Helmkamp 2001-3-17 6290 Imperial Sonoran (Colorado) Desert, Ogilby Rd., 15.4 miles south of Calif. Hwy 78 168 Comment
  UCR120969  Ambrosia dumosa Jennie Phui 1998-6-3 106 Riverside Western Colorado Desert/San Jacinto Mtns., near Windy Point and Palm Springs Station, 6 miles NW of Palm Springs city limits, base of Mt. San Jacinto 366 Comment
  UCR121116  Ambrosia dumosa Tracy Tennant 1998-5-9 2 San Bernardino Mojave Desert, Iron Mountains, SW of Hinkley and c. 10 mi. (air) WSW of Barstow, off Iron Mountain Rd. 762 Comment
  UCR121887  Ambrosia dumosa Ian G. Gillespie 2001-5-12 89 San Bernardino Mojave Desert, c. 15 miles north-northeast of Barstow, near Goldstone bench mark, SE of Superior Dry Lake 1146 Comment
  UCR123887  Ambrosia dumosa Steven R. Hill, K. Kramer 2001-4-27 33477 Imperial Sonoran (Colorado) Desert, California Route 86/78, W side of road, near Kane Spring, 0.6 mi SE of the U.S. Border Patrol Station at San Felipe Wash bridge. About 3.3 mi SW of the Salton Sea margin -52 Comment
  UCR124076  Ambrosia dumosa George K. Helmkamp, Elizabeth Helmkamp 2000-4-4 5356 San Bernardino Colorado River, Beside the California-Arizona border near Topock, AZ. 152 Comment
  UCR124631  Ambrosia dumosa B. C. Templeton, I. W. Clokey 1930-4-9 1077 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  UCR124911  Ambrosia dumosa I. W. Clokey, B. C. Templeton 1935-4-6 5716 Inyo Northern Mojave Desert, fan below Emigrant Canyon, Death Valley 150 Comment
  UCR124929  Ambrosia dumosa I. W. Clokey, B. C. Templeton 1935-4-4 5712 Inyo Northern Mojave Desert, Panamint Valley on the road from Trona to Wildrose 850 Comment
  UCR127857  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2003-10-5 27278 San Bernardino Southern Mojave Desert, along Hwy 62 east of Twentynine Palms, c. 1 mile east of Old Dale 390 Comment
  UCR128943  Ambrosia dumosa Chris E. True, K. Flemming 2003-9-26 s.n. Riverside Sonoran (Colorado) Desert, Canyon Spring, Orocopia Mtns. 372 Comment
  UCR131105  Ambrosia dumosa George K. Helmkamp, E. A. Helmkamp 1998-5-3 3518 San Bernardino Eastern Mojave Desert, Mesquite Mtns, 3 mi. west of the Nevada border at Sandy Valley 1067 Comment
  UCR132958  Ambrosia dumosa A. C. Sanders 1989-3-19 9033 .3 San Bernardino Mojave Desert, 29 Palms Marine Corps Base, east slope of Bullion Mountains, America Mine Training Range 915 Comment
  UCR134715  Ambrosia dumosa June Latting 1958-4-6 253 San Bernardino Mojave Desert, Old Dale Road, 8 miles southeast of 29 Palms 488 Comment
  UCR135895  Ambrosia dumosa A. C. Sanders, Kent Beaman 2004-4-21 27581 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
  UCR141575  Ambrosia dumosa June Latting 1976-5-14 s.n. Kern Mojave Desert/SE Sierra Nevada Foothills, Horse Canyon, southwest of Inyokern 1372 Comment
  UCR144132  Ambrosia dumosa Scott D. White 2000-3-23 7639 Riverside Sonoran (Colorado) Desert, Coachella Valley, Thousand Palms area. North terminus of Rio del Sol Road at intersection with Vista Chino. Proposed aggregate mine expansion 183 Comment
  UCR144860  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2004-10-10 29006 San Bernardino Southern Mojave Desert, Cadiz Valley c. 19 miles north of Hwy 62, west of north end of Cadiz Lake, along dirt road up west side of valley toward Calumet Mine 192 Comment
  UCR145113  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2004-10-10 28962 San Bernardino Southern Mojave Desert, south end of the Sheephole Mtns. along Hwy 62, 2.8 miles west of Clarks Pass, 26.2 miles east of Utah Trail in Twentynine Palms 530 Comment
  UCR145774  Ambrosia dumosa A. C. Sanders, Mark A. Elvin 2004-10-10 28998 San Bernardino Southern Mojave Desert, Cadiz Valley c. 17 miles north of Hwy 62, west of Cadiz Lake salt evaporators, along dirt road up west side of valley toward Calumet Mine 210 Comment
  UCR147730  Ambrosia dumosa Steve Boyd, Tammy Morgan 2004-3-30 10710 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
  UCR148375  Ambrosia dumosa Steve Boyd, Michael Denslow 2004-3-23 10583 San Bernardino Central Mojave Desert, Lavic Mountain, southern end of the Cady Mountains northwest of Ludlow (north of Interstate 40) along powerline/pipeline access road Comment
  UCR148486  Ambrosia dumosa John F. Green 2005-1-14 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, Coachella Canal right-of-way, between siphons 23 and 24 (near 23), just north of Salt Creek crossing 23 Comment
  UCR148660  Ambrosia dumosa Jon P. Rebman, Joan Dowd, Veronica Gallego 2000-4-19 6526 Imperial W Colorado Desert, NW of El Centro, E side of Fish Creek Mtns and west of Salton Sea Comment
  UCR151237  Ambrosia dumosa Steve Boyd, Et al. 2004-10-13 11595 San Bernardino Eastern Mojave Desert, Ivanpah Valley: upper bajada at NE base of the Ivanpah Mtns, south of Interstate 15 Comment
  UCR154036  Ambrosia dumosa L. McHargue 1966-11-25 s.n. Riverside Colorado Desert, 0.5 mi east of Ramon Road and 1000 Palms Canyon Road junction Comment
  UCR154043  Ambrosia dumosa D. W. Goodall 1968-4-14 s.n. San Bernardino Mojave Desert, 15 km north of Trona Comment
  UCR158443  Ambrosia dumosa E. J. Lawlor 1988-3-29 124 San Bernardino Mojave Desert, NE edge of Danby Dry Lake at intersection of Cadiz Road with southern powerline road 198 Comment
  UCR164529  Ambrosia dumosa T. B. Salvato, Sandra Murcia 2005-11-1 1252 Los Angeles West Mojave Desert, NE edge of Palmdale c. 2 mi N of Pearland, 10 acre parcel east of 46th St., 0.1 mi past Hwy 138 on Palmdale Blvd, and south of Avenue Q 793 Comment
  UCR165492  Ambrosia dumosa 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 13 and 14, c. 3.5 miles NE of Wister 27 Comment
  UCR166831  Ambrosia dumosa John F. Green, Nathan Moorhatch 2005-11-23 s.n. San Bernardino Mojave Desert, SW of 29 Palms Marine Corps Base, c. 3 mi SE of Yucca Valley 1061 Comment
  UCR167258  Ambrosia dumosa John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, WNW of Rancho Dos Palmas between Coachella Canal siphons 29 and 30 24 Comment
  UCR167376  Ambrosia dumosa 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
  UCR169002  Ambrosia dumosa Sarah J. De Groot, J. M. Porter 2003-9-28 3224 San Bernardino Sonoran (Colorado) Desert, WHIPPLE MOUNTAINS: Along Highway 95 between Vidal Junction and Vidal 239 Comment
  UCR17119  Ambrosia dumosa J. Texera 1970-3-27 11 Riverside Sonoran (Colorado) Desert, c. 3 miles south of town of Palm Desert on dirt road continuation of Portola Avenue, 0.75 mile north of boundary fence of Deep Canyon Desert Research Center 207 Comment
  UCR175081  Ambrosia dumosa Andraya Gough 2005-4-23 13 San Bernardino Mojave Desert, west edge of town of Joshua Tree, corner of Hwy 62 and Sunny Vista Rd. 884 Comment
  UCR177603  Ambrosia dumosa LeRoy Gross 2005-4-25 2052 San Bernardino Northern Mojave Desert, southwest end of the Lava Mtns, north of Red Mountain, east of Trona Road. Side road off Steam Well Road (RM1444) to Skilling Well; road ends near mines. Along the lower ridge that climbs toward Kilinker Mtn., then down a small draw to the west of this ridge 1191 Comment
  UCR177850  Ambrosia dumosa Marisa Sripracha, K. A. Boyd 2004-2-14 036 Riverside Sonoran (Colorado) Desert, Myoma, on the Thousand Palms Preserve, near the palm oasis just off Thousand Palms Drive 190 Comment
  UCR178508  Ambrosia dumosa R. G. Swinney 1967-5-26 149 Riverside Sonoran (Colorado) Desert/ San Jacinto Mtns., Snow Creek 381 Comment
  UCR178601  Ambrosia dumosa Cathy A. Toft 1980-6-28 s.n. Inyo Northern Mojave Desert, 12 miles [southeast] of Keeler on Hwy 190 1372 Comment
  UCR17946  Ambrosia dumosa Loretta Bates 1978-5-28 s.n. Los Angeles Western Mojave Desert, [east of Llano] junction of Hwy 138 and Black [Butte] Basin Rd 1037 Comment
  UCR185093  Ambrosia dumosa Naomi Fraga, Genie Fraga 2003-4-12 551 Kern Southern Sierra Nevada Range, Owens Peak Eastern Watershed. Five Fingers, near aquaduct road 1159 Comment
  UCR185106  Ambrosia dumosa LeRoy Gross, Amber Maurice 2005-3-17 1727 San Bernardino Southcentral Mojave Desert, SE end of the Bristol Mtns; west of Kelbaker Road, base of mountain where the road was gated, near 'Windy Point.' Canyon bottom and slope west of gate 611 Comment
  UCR185120  Ambrosia dumosa Michael Honer 2006-5-13 2314 San Bernardino Southcentral Mojave Desert, Aprox. 3 mi. west of Flamingo Heights; along 4WD road traveling NW across bajada from main wash at Hondo St 1250 Comment
  UCR185141  Ambrosia dumosa Naomi Fraga, Michael Denslow 2003-4-8 481 Kern Southern Sierra Nevada, Owens Peak Eastern Watershed, lower sand dunes between Short Canyon and Grapevine Canyon 854 Comment
  UCR188537  Ambrosia dumosa T. B. Salvato, Sandra Murcia 2006-5-30 1734 Inyo Northern Mojave Desert, Coso Range south of McCloud Flat, 5 mi due east of Dunmovin and 5 mi NE of Coso Junction 1491 Comment
  UCR196392  Ambrosia dumosa Naomi Fraga, Lisa Rojas 2005-2-10 1415 Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 502 Comment
  UCR198303  Ambrosia dumosa LeRoy Gross, Steve Boyd, Michael Denslow, Lisa Rojas 2003-10-21 1194 San Bernardino Northcentral Mojave Desert, east side of the Soda Mountains, north of Hwy I-15, west of Baker. Along jeep trail to Blue Bell Mine, Zzyzx Road exit 481 Comment
  UCR200407  Ambrosia dumosa Jim Andre 2007-11-19 9317 San Bernardino Mojave Desert, Bristol Mountains, upper Orange Blossom Wash c. 1 mi south of Hwy I-40, 0.5 mi west of Kelbaker Road at base of Brown Buttes 823 Comment
  UCR200514  Ambrosia dumosa Jim Andre, T. La Doux, Shannon M. Still 2007-11-26 9395 San Bernardino Mojave Desert, Granite Mountains, Old Dad Mountain wash, west side of Granite Mountains, east end of Bristol Mountains c. 1 mi north of Hwy I-40 989 Comment
  UCR200519  Ambrosia dumosa Jim Andre, T. La Doux, Shannon M. Still 2007-11-26 9412 San Bernardino Mojave Desert, east side of Granite Mountains, mouth of Budweiser Canyon 1183 Comment
  UCR202429  Ambrosia dumosa Denise Woodard 1997-4-30 s.n. San Bernardino Mojave Desert, Yeager Corp. borrow pit site at Wild Wash Rd., east side of the I-15 Fwy c. midway between Victorville and Barstow. c. 12.5 mi. north of the Mohave River bridge at Victorville 930 Comment
  UCR202789  Ambrosia dumosa Melvin M. Sweet 2007-9-30 465 San Diego Sonoran (Colorado) Desert, Anza-Borrego State Park; Vista del Malpais Overlook in the Borrego Badlands, c. 3 miles south of Hwy S22. Square F27, San Diego Co. Plant Atlas. 305 Comment
  UCR20775  Ambrosia dumosa A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 01313 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UCR210922  Ambrosia dumosa A. C. Sanders, A. Howald, Fred M. Roberts, et al 2009-3-25 36558 San Bernardino Mojave Desert, Cady Mountains, 3.5 miles SW of Broadwell Lake, c. 2.5 mi. NE of Sleeping Beauty Mtn. 610 Comment
  UCR210944  Ambrosia dumosa A. C. Sanders, A. Howald, Fred M. Roberts, et al 2009-3-25 36560 San Bernardino Mojave Desert, Cady Mountains, 3.5 miles SW of Broadwell Lake, c. 2.5 mi. NE of Sleeping Beauty Mtn. 610 Comment
  UCR211435  Ambrosia dumosa Jim Andre 2009-4-10 10167 San Bernardino Mojave Desert, Clipper Mountains; southwest end of the Clipper Mtns. at Tom Reed Mine area, at end of dirt road c. 4 miles N of Hwy 66 764 Comment
  UCR214278  Ambrosia dumosa A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37479 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
  UCR214716  Ambrosia dumosa A. C. Sanders 2010-3-23 37545 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at SW foot of Palen Mountains 130 Comment
  UCR214797  Ambrosia dumosa Michael Honer, Johanna Kisner 2008-4-8 2938 San Bernardino Southcentral Mojave Desert, south edge of Johnson Valley, near Old Woman Springs, Arrastre Creek, c. 0.75 mi south of Hwy 247 976 Comment
  UCR215041  Ambrosia dumosa A. C. Sanders, A. Howald, Florence Caplow, et al 2010-5-4 38264 San Bernardino Eastern Mojave Desert, Ivanpah Valley, near metamorphic hill emerging from alluvium below Clark Mountain, 2.5 km WNW of Primm Valley Golf Club, 4.4 km W of I-15 883 Comment
  UCR216256  Ambrosia dumosa Mike Bell 2008-3-19 047 Riverside Sonoran (Colorado) Desert, Coachella Valley; 2 miles west of Desert Hot Springs, north of Pierson Blvd. and west of North Indian Canyon Dr. 396 Comment
  UCR216606  Ambrosia dumosa Jim Andre 2010-4-23 13740 San Bernardino Eastern Mojave Desert, Granite Mountains, Mojave National Preserve, along powerline road c. 6 miles SW of Kelso Dunes at Budweiser Wash 591 Comment
  UCR217677  Ambrosia dumosa Jim Andre, T. La Doux 2010-3-1 12520 Imperial Colorado (Sonoran) Desert, Borrego Desert, southeastern Coyote Mountains, along Painted Gorge Road, c. 5 mi northeast of town of Ocotillo, 4 mi north of Hwy I-8 68 Comment
  UCR217723  Ambrosia dumosa Jim Andre 2010-4-18 13097 San Bernardino Mojave Desert, Piute Valley, Mojave National Preserve, along Mojave Road (Old Government Road), at Piute Pass summit 1022 Comment
  UCR218494  Ambrosia dumosa Jim Andre 2010-4-7 12459 San Bernardino Eastern Mojave Desert, Piute Range, along transmission line road in valley east of northern Piute Mtns. and west of northern Sacramento Mtns., 3 miles south of Route 66 (Natl. Trails Hwy), 2 miles north of I-40 Fwy 650 Comment
  UCR218501  Ambrosia dumosa Jim Andre 2010-3-23 12466 San Bernardino Mojave Desert, Bristol Mountains, along dirt road at large wash crossing 7 mi south of Hwy I-40, 0.5 mi west of Kelbaker Road 480 Comment
  UCR218565  Ambrosia dumosa Jim Andre 2010-4-27 12764 San Bernardino Eastern Mojave Desert, Ivanpah Valley, southeastern end of valley c. 3.2 miles north of Nipton on west side of RR tracks 866 Comment
  UCR218778  Ambrosia dumosa Jim Andre 2010-4-7 12446 San Bernardino Eastern Mojave Desert, Mojave National Preserve, northeast end of Piute Range at foot of mountains along Old Homestead Road (historic), c. 6 mi west of Hwy 95 and 0.9 mi west of the Nevada border 820 Comment
  UCR219391  Ambrosia dumosa A. C. Sanders, A. Howald 2010-9-21 38594 Inyo Northeastern Mojave Desert, Pahrump Valley, east of the Nopah Range at Calvada Springs, bladed dirt section line road (Topaz St.) c. 50 m south of State Line Rd. 799 Comment
  UCR222282  Ambrosia dumosa R. F. Thorne, W. Wisura, B. Busenberg, R. K. Benjamin 1983-5-6 55611 Inyo Mojave Desert; North Mojave Desert region, Death Valley National Monument, Funeral Mountains, campsite at lower end of Red Ampitheater above Hole in the Wall 768 Comment
  UCR222752  Ambrosia dumosa R. G. Swinney 2009-4-29 10565 Los Angeles Transverse Range; San Gabriel Mtns./Western Mojave Desert, Carr Canyon, 0.5-1.0 mi. east of Little Rock Creek confluence 963 Comment
  UCR224897  Ambrosia dumosa Jim Andre 2010-5-14 15186 San Bernardino Mojave Desert, Ivanpah Valley, 0.2 mi south of Nipton Road, c. 5 mi west of Nipton, 1 mi east of Ivanpah Road 803 Comment
  UCR225042  Ambrosia dumosa Jim Andre 2010-10-9 14985 San Bernardino Colorado River Valley, west side of Colorado River along River Road, 2 mi south of Avi Resort Hotel, c. 9 mi north of Needles 153 Comment
  UCR227021  Ambrosia dumosa Tasha La Doux, Jim Andre, Ron B. Kelley 2011-3-24 589 San Bernardino Mojave Desert, Clipper Mountains, north of Tom Reed Mine, 6.5 mi north of Hwy 66 at Danby Road 743 Comment
  UCR227303  Ambrosia dumosa Jim Andre 2011-3-17 16020 San Bernardino Colorado River Valley, along north side of Hwy I-40 just southeast of West Park Road exit, along old Natioal Trails Hwy, c. 2.0 mi northwest of Needles 176 Comment
  UCR227415  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks 2010-6-14 232 Inyo Mojave Desert; Northcentral Mojave Desert region, NE of Trona. Slate Mtn Range. P168 just past Golf Canyon Jct. 671 Comment
  UCR227425  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-4-21 152 Riverside Little San Bernardino Mountains, north of Desert Center, junction of Hwy 177 and Kaiser Road west of Kaiser Road, north of Hwy 177 335 Comment
  UCR227428  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-5-19 590 Kern Mojave Desert; West Mojave Desert, El Paso Mtn Wilderness. Car parking area delineated by volcanic rocks 976 Comment
  UCR227439  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks 2010-3-30 109 Riverside Northwestern Colorado (Sonoran) Desert, Coachella Valley Preserve, junction of Ramon Road and Thousand Palms Canyon Road, west of Thousand Palms north of powerline in Preserve 198 Comment
  UCR227442  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks 2010-7-22 413 San Bernardino Mojave Desert; East Mojave Desert, Cadiz Valley. 4 miles N of Hwy 62 on Cadiz Road 244 Comment
  UCR227449  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-4-27 175 Riverside Mojave Desert, Orocopia Mountains Wilderness, SR 2013/Red Canyon Road at wilderness boundary sign 689 Comment
  UCR227453  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks 2010-7-8 339 San Bernardino Mojave Desert; Southcentral Mojave Desert, Bighorn Mtn Wilderness. San Bernardino Mtns. Rattlesnake Canyon. Site #2. 1280 Comment
  UCR227455  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks 2010-6-8 228 San Bernardino Mojave Desert; Northcentral Mojave Desert region, Cady Mtn Wilderness. Powerline Rd. Site #2 701 Comment
  UCR227460  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-4-27 172 Riverside Northeastern Colorado (Sonoran) Desert, Mecca Hills Wilderness, off Box Canyon Road (66th St./Hwy 195), campground east of Mecca 198 Comment
  UCR227463  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks 2010-6-22 243 San Bernardino Mojave Desert; Southcentral Mojave Desert, Bighorn Mtn Wilderness. Ruby Mtns. New Dixie Mine Rd. 1189 Comment
  UCR227693  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-28 184 Kern Mojave Desert; West Mojave Desert region, El Paso Mtns Wilderness. Red Rock Inyokern Rd. Near Freeman Wash Well 869 Comment
  UCR227702  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-5-13 212 San Bernardino Mojave Desert; Northcentral Mojave Desert region, Copper City Rd. S of Dobson Rd., Superior Cronese ACEC 1037 Comment
  UCR227703  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-28 178 Kern Mojave Desert; Northcentral Mojave Desert region, Golden Valley Wilderness. 5 miles from Hwy 395 on Trona Rd. (BLM kiosk) 1067 Comment
  UCR227990  Ambrosia dumosa Jon P. Rebman, Larry Hendrickson, Suzann M. Leininger, Victoria Marshall 2010-3-4 18724 San Diego Sonora (Colorado) Desert, Anza-Borrego Desert State Park, vicinity of Split Mountain, along the North Fork of Fish Creek Wash near its junction with Mollusk Wash. Square: L28 230 Comment
  UCR228399  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-22 157 Riverside Sonoran (Colorado) Desert, north of Hwy I-10, c.1.5 mi up Corn Springs Road 213 Comment
  UCR228404  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-20 148 Riverside Colorado Desert; Little San Bernardino Mountains region, W of Palen/ McCoy Wilderness. Intersection of Hwy 177 and Palen Pass Rd (kiosk) 366 Comment
  UCR228405  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-20 143 Riverside Little San Bernardino Mountains, Hwy 177, north of Desert Center and Desert Lily Sanctuary, east of Joshua Tree National Park border 274 Comment
  UCR228411  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-5-27 225 San Bernardino Mojave Desert; East Mojave Desert, Turtle Mtns Wilderness. Turtle Mtn Road 488 Comment
  UCR228500  Ambrosia dumosa Sarah J. De Groot, Mary Motheral 2010-4-23 6256 San Bernardino Mojave Desert, Calumet Mountains, southeast side, isolated hill of granite boulders, north of Hwy 62 along road to salt evaporators on Cadiz Lake 347 Comment
  UCR228508  Ambrosia dumosa Sarah J. De Groot, Mary Motheral 2010-4-24 6329 San Bernardino Mojave Desert, Whipple Mountains, saddle between drainages below cove, northeast of highest peak along summit ridge 841 Comment
  UCR228634  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-4-11 201 San Bernardino Mojave Desert, Johnson Valley OHV area, Bessemer Mine Road to Rock Pile staging Area 1006 Comment
  UCR228636  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-4-8 127 San Bernardino Little San Bernardino Mountains, Big Morongo Canyon Preserve, 1/2 mi up Yucca Ridge Trail from rightside trail start 831 Comment
  UCR228642  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-5-26 220 San Bernardino Colorado Desert; Northeastern Colorado Desert, Whipple Mtns Wilderness. SW side of Whipple Mtns, just across the Colorado River Aqueduct 304 Comment
  UCR234709  Ambrosia dumosa Jim Andre 2011-4-15 17244 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
  UCR235728  Ambrosia dumosa Jim Andre 2011-4-17 17943 Inyo Owens Valley, mine area near Swansea, 10.2 mi east of US Hwy 395 at Lone Pine, 0.4 mi north of Hwy 136 1153 Comment
  UCR235798  Ambrosia dumosa Jim Andre 2011-5-10 18154 San Bernardino Mojave Desert, along dirt road at north end of Mesquite Mountains, c. 5 mi west of Excelsior Mine Road and the Kingston Range, and c. 6 mi west northwest of Mesquite Lake 923 Comment
  UCR238464  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy 2010-8-12 518 Kern Mojave Desert; West Mojave Desert region, E of Short Canyon ACEC. Short Canyon. Dune area below old mining project. Rd SC 139 976 Comment
  UCR238482  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-22 168 Riverside Sonoran (Colorado) Desert, McCoy Wash, north of Hwy I-10, road north from Black Rock Road, south side of private land boundary 244 Comment
  UCR238483  Ambrosia dumosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-22 162 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley. N of I-10. Wiley Well Rd exit on 4x4 rd towards McCoy Peak 213 Comment
  UCR241286  Ambrosia dumosa Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 54 Riverside Sonoran (Colorado) Desert, near Joshua Tree National Park, Coachella Valley, Dillon Rd. 4.21 miles north of Hwy 10 in Indio 91 Comment
  UCR244301  Ambrosia dumosa Jim Andre 2012-4-15 20858 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  UCR244353  Ambrosia dumosa Jim Andre 2011-10-26 19170 San Bernardino Western Mojave Desert, along Hwy 58, 18 mi. west of Barstow, 0.2 mi. north of highway, 0.2 mi. E. of Harper Lake Rd 690 Comment
  UCR244869  Ambrosia dumosa Jim Andre 2011-5-1 21163 San Bernardino Eastern Mojave Desert, Mojave National Preserve; NE foothills of Providence Mtns, along Globe Mine Rd 3.1 mi. SE of junction with Cima Rd. 1018 Comment
  UCR244917  Ambrosia dumosa Jim Andre 2012-3-19 21358 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Hwy 177, 8.6 mi. NE of junction with I-10 152 Comment
  UCR246334  Ambrosia dumosa Jim Andre, G. L. Clifton 2011-12-1 20560 San Bernardino Northern Sonoran (Colorado) Desert, NW end of Chemehuevi Mountains at Lobecks Pass, 0.2 mi. east of Hwy 95, 11.4 mi. south of Needles (at I-40) 476 Comment
  UCR251788  Ambrosia dumosa Thomas R. Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 986 Riverside Southcentral Mojave Desert, Iron Mountains, on southwest side of mountains in drainage on either side of the road 419 Comment
  UCR253397  Ambrosia dumosa Jim Andre 2012-9-18 23138 San Bernardino Eastern Mojave Desert, Kingston Range, along Excelsior Mine Road, c. 18 mi north of Hwy I-15, at southeast end of range 1036 Comment
  UCR25480  Ambrosia dumosa K. Simmons 1979-5-4 s.n. San Bernardino Mojave Desert, Frontage Road along Hwy I-40, 24 mi east of Newberry Springs 459 Comment
  UCR256334  Ambrosia dumosa Duncan S. Bell 2012-3-18 3211 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
  UCR262464  Ambrosia dumosa A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41506 Riverside San Gorgonio Pass, north of San Gorgonio River wash, c. 3 miles east of Cabazon, south of I-10 and generally NE of water bottling plant 457 Comment
  UCR262930  Ambrosia dumosa Sarah J. De Groot, Cheryl Sevilla 2014-10-20 7351 San Bernardino Southeast Vidal Valley, along powerline road west-southwest of Hwy 95 just southwest of Vidal Wash, 0.6 mi west-southwest from Hwy 95, 1.3 air mi south of Vidal, about 5 air mi west of the Colorado River. Northern bajada of the Riverside Mountains 189 Comment
  UCR263505  Ambrosia dumosa David Fraker, Aaron C. Sedgwick 2012-3-22 020 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, south of Joshua Tree National Park on both sides of Hwy 177, c. 5 miles north of I-10, c. 3 miles south of the Desert Lily Sanctuary 183 Comment
  UCR263655  Ambrosia dumosa David Fraker, Aaron C. Sedgwick 2012-3-22 021 Riverside Sonoran (Colorado) Desert, Palen Mountains, Coxcomb Monument Road [becomes Palen Pass Rd.] c. 8 miles east of Hwy 177 376 Comment
  UCR263918  Ambrosia dumosa Larry Hendrickson, Tom Beltran 2009-4-4 3656 A San Diego Sonoran (Colorado) Desert, Borrego Valley, Yaqui Meadows, Tom and Rose Beltran property, 1.9 miles south of intersection of County Road S-3, Borrego Springs Road, and Anzio Drive, and 3.7 air miles northeast of intersection of S-3 and State Hwy 78 323 Comment
  UCR264792  Ambrosia dumosa Jon P. Rebman, J. LaGrange, Warren Schmidtmann, J. Emming 2014-9-24 28728 Imperial Sonoran (Colorado) Desert, Milpitas Wash just west of Hwy 78; south of Palo Verde and south of the Palo Verde Mountains; in the sandy wash just south of Milpitas Wash Road 133 Comment
  UCR265261  Ambrosia dumosa Jon P. Rebman, John La Grange, Warren Schmidtmann 2014-9-26 28826 Imperial Algodones Dunes, east of Brawley, north of Hwy 78 at Glamis and west of the railroad and Ted Kipf Road; on the eastern edge of the dune field 90 Comment
  UCR266540  Ambrosia dumosa A. C. Sanders, J. Malusa, M. Baker, M. Cloud-Hughes 2016-1-19 41890 Imperial Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, Pegleg Well Rd (Salvation Pass Rd) above Niland 98 Comment
  UCR268993  Ambrosia dumosa Jim Andre 2014-2-20 27112 San Bernardino Mojave Desert, Avawatz mountains, northern base of range, at Saratoga Springs Road junction iwth Sheep Creek Spring Road, 2.0 mi west of Hwy 127, 30 mi north of Baker 109 Comment
  UCR269537  Ambrosia dumosa A. C. Sanders, Jim Malusa 2016-3-8 42161 Imperial Sonoran (Colorado) Desert, NE side of Chocolate Mountains, along Dietz Rd., 1.7 km east of intersection with Skyline Dr., along boundary of Chocolate Mtns. Aerial Gunnery Range 314 Comment
  UCR269610  Ambrosia dumosa A. C. Sanders, Jim Malusa 2016-3-14 42174 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, along old Niland-Blythe Rd., 1.92 km NE of Siphon 8 on the Coachella Canal, NE of Slab City 51 Comment
  UCR269721  Ambrosia dumosa A. C. Sanders, Jim Malusa 2016-3-16 42279 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, along old Niland-Blythe Rd. at powerlines, 2.6 km NNW of Beal Well 472 Comment
  UCR275144  Ambrosia dumosa Aaron C. Sedgwick, David Fraker 2012-4-23 056 San Bernardino Southcentral Mojave Desert, south of Twentynine Palms Hwy 62, c. 14 miles east of Twentynine Palms 600 Comment
  UCR275449  Ambrosia dumosa Thomas R. Stoughton, Stephanie Rockwood, Christi Gabriel 2011-3-31 946 Riverside Sonoran (Colorado) Desert, wash crossing Midland-Rice Road, near saddle between Little Maria Mountains and Big Maria Mountains 320 Comment
  UCR276477  Ambrosia dumosa Jim Andre 2012-10-13 23536 Inyo Northern Mojave Desert, Panamint Range; south end of Cottonwood Mtns. along Hwy 190, west side of Towne Pass 1223 Comment
  UCR277624  Ambrosia dumosa Aaron C. Sedgwick, April Garbat 2012-10-16 137 San Bernardino Mojave Desert, north of Rice Valley on Hwy 62, c. 4 miles east of Rice 302 Comment
  UCR279033  Ambrosia dumosa Onkar Singh, B. Huttar 2015-3-16 5107 Imperial Sonoran (Colorado) Desert, Imperial Valley, Naval Air Facility El Centro Target 103, c. 12 km NNW of Plaster City 35 Comment
  UCR279173  Ambrosia dumosa Onkar Singh 2016-4-23 5754 San Bernardino Mojave Desert, Fort Irwin National Training Center 864 Comment
  UCR30838  Ambrosia dumosa A. C. Sanders 1983-6-11 3840 San Bernardino Eastern Mojave Desert, Winters Pass, Mesquite Mts, 40 air mi. NE of Baker 1223 Comment
  UCR31227  Ambrosia dumosa A. C. Sanders 1983-4-23 03781 San Bernardino Sonoran (Colorado) Desert, Whipple Mtns., Whipple Wash where it joins the road to Havasu Landing, c. 0.5 mile below Willow Spring and 1.5 miles above Lake Havasu 168 Comment
  UCR33186  Ambrosia dumosa James Henrickson 1978-5-7 16963 San Bernardino Eastern Mojave Desert, 5 mi. north of Baker on Hwy 127 at Silver Dry Lake 612 Comment
  UCR33187  Ambrosia dumosa James Henrickson 1978-5-28 17310 San Bernardino Mojave Desert, c. 23 air mi. NW of Barstow, Black Canyon, W end Black Mtns. 793 Comment
  UCR33539  Ambrosia dumosa Sears 1978-3-15 794 Imperial Sonoran (Colorado) Desert, Chocolate Mountains, 9 mi. NE of Glamis, 2 mi. SW of Blythe - Ogilby Road Junction 396 Comment
  UCR34895  Ambrosia dumosa L. B. Ziegler 1973-3-6 495 Riverside San Jacinto Mtns, Desert side of Hwy 74, Carriso [Carrizo] Creek 765 Comment
  UCR37502  Ambrosia dumosa George K. Helmkamp 1984-4-20 840420- 33 San Bernardino Little San Bernardino Mountains, Big Morongo Preserve of The Nature Conservancy, south of the town of Morongo Valley in Big Morongo Canyon 765 Comment
  UCR41219  Ambrosia dumosa N. M. Fellows 1985-3-3 76 Riverside San Jacinto Mtns, Oasis de los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the north foot of San Jacinto Mountain, l mile west of Snow Creek Village 489 Comment
  UCR41506  Ambrosia dumosa A. C. Sanders, D. Charlton, B. Pitzer, J. Kniffen, R. Kniffen, W. W. Wright, Howie Weir, D. E. Bramlet 1986-3-8 6153 Imperial Sonoran (Colorado) Desert, N end of Algodones Dunes, East Mesa at east end of Montgomery Road, c. l mi east of Highline Canal 18 Comment
  UCR41603  Ambrosia dumosa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6025 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  UCR41822  Ambrosia dumosa A. C. Sanders, D. Charlton, B. Pitzer, R & J. Kniffen, and W. W. Wright 1986-3-10 6290 Imperial Peninsular Range/ Sonoran (Colorado) Desert, South side of old highway at Mountain Springs Road exit from Hwy I-8, c. 1/3 mile east of town of Mountain Springs, at head of Myer Creek 673 Comment
  UCR47778  Ambrosia dumosa James D. Morefield, D. H. McCarty 1986-5-4 3575 Inyo White Mtns.; Owens Valley Drainage, just NE of Warm Springs at west base of Black Mountain, 2.4 miles N85 deg. W of summit 1311 Comment
  UCR51278  Ambrosia dumosa George K. Helmkamp 1988-4-29 s.n. San Bernardino Eastern Mojave Desert, Fenner Valley between Hackberry Mtns & Vontrigger Hills, 11.3 mi NNW of Goffs 1100 Comment
  UCR51712  Ambrosia dumosa E. J. Lawlor 1988-3-29 111 San Bernardino Eastern Mojave Desert, NE edge Danby Lake and washes on Cadiz Road, 3.5-5 mi. NW of Hwy 62 198 Comment
  UCR52229  Ambrosia dumosa Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2205 Riverside Sonoran (Colorado) Desert, NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  UCR52419  Ambrosia dumosa David Charlton, A. Romsport 1988-6-14 2153 San Bernardino Eastern Mojave Desert, Hart Mine, southern Castle Mtns, east of New York Mtns., north of Lanfair Valley 1600 Comment
  UCR54076  Ambrosia dumosa M. O. Bagley 1987-5-8 2055 Kern Western Mojave Desert, Kramer Junction, 1.25 mi. NW of Boron, Luz Engineering SEGS Site 777 Comment
  UCR60795  Ambrosia dumosa Steve Boyd, O. Mistretta 1986-3-13 1420 Riverside Sonoran (Colorado) Desert, Palen Mtns: NE of Desert Center, junction of Parker Dam Road and 'Palen Road' (road going through pass between Palen and Granite Ranges) 244 Comment
  UCR63916  Ambrosia dumosa Frank C. Vasek 1978-5-8 s.n. San Bernardino Southern Mojave Desert, Music Valley, c. 8 mi SE of Twentynine Palms 610 Comment
  UCR75095  Ambrosia dumosa A. C. Sanders, E. Lawlor 1992-4-4 12092 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  UCR77175  Ambrosia dumosa J. S. Holland 1976-3-30 s.n. Inyo Death Valley Nat'l Mon., 5 mi. south of Badwater -60 Comment
  UCR86850  Ambrosia dumosa A. C. Sanders 1995-4-27 16744 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
  UCR89871  Ambrosia dumosa George K. Helmkamp 1994-3-8 41 2 Riverside Western Colorado Desert, Indio Hills, junction of Palm Dr. & Varner Rd, below Edom Hill 200 Comment
  UCSB10225  Ambrosia dumosa Long, Frances 1937-5-1 San Bernardino Ibex Pass-Mojave Desert Comment
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May 27 2013
  UCSB10231  Ambrosia dumosa Gunnerson, R. 1963-3-20 Riverside Whitewater Canyon, Colorado Desert Comment
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Mar 27 2014
  UCSB10484  Ambrosia dumosa Atsatt, Pete 1958-3-22 Riverside 5.8 miles east of Desert Center on highway 60 and 70 243 Comment
  UCSB11473  Ambrosia dumosa Dearing, Hugh; Dearing, Margaret 1940-4-28 Inyo Towne's Pass, Death Valley Region; Panamint Mts. Comment
  UCSB11702  Ambrosia dumosa McMillan, Ann 1962-4-2 San Bernardino By roadside of Route 66, 12 miles west of Amboy 365 Comment
  UCSB18366  Ambrosia dumosa Kruger, Dave 1964-5-10 Riverside State Highway 74, 7 miles E of Pinyon Flats Campground 914 Comment
  UCSB18824  Ambrosia dumosa Barrick, Linda 1963-5-5 Riverside East side of State Highway 74, 10 miles S of Palm Desert 1066 Comment
  UCSB24079  Ambrosia dumosa McMinn, Howard 1937-3-6 Riverside About 10 miles N.E. of Blythe, on road from Blythe to Needles Comment
  UCSB32798  Ambrosia dumosa Simmons, K. 1979-5-4 San Bernardino Frontage Road along Hwy. 40, 24 miles east of Newberry Springs 457 Comment
  UCSB39036  Ambrosia dumosa Jorgensen, Jan 1982-3-5 San Diego 30 kilometers south on road S-2 after highway 78 intersection; Anza-Borrego Desert State Park 400 Comment
  UCSB41267  Ambrosia dumosa Cowan, Clark 1978-4-23 Riverside 2.7 mi. (4.3 km.) S on Hwy. 74 from its jct. with Hwy. 111 at Indian Wellls 210 Comment
  UCSB41297  Ambrosia dumosa Miller, Brian 1963-5-4 Inyo Highway 190, Towne Pass Canyon, Panamint Mts. 1066 Comment
  UCSB52974  Ambrosia dumosa Pritchett, David; Fulton, M. 1986-3-9 San Diego Off County Road S-2 ca. 10 mi. SE of Borrego Palm Canyon 304 Comment
  UCSB56151  Ambrosia dumosa Romspert, A. 1976-4-23 Inyo Surprise Cyn., Panamint Mts.; north of Chris Wicht's 1219 Comment
  UCSB59742  Ambrosia dumosa Jennings, W. 1991-5-14 Kern Vicinity of the DTNA Interpretive Center 749 Comment
  UCSB6545  Ambrosia dumosa Sager, Ginny 1960-4-2 Riverside Edge highway U.S. 60 and 70; miles east of Indio Comment
  UCSB6546  Ambrosia dumosa Ralph, F. 1960-4-1 Riverside Whitewater Canyon, 1.6 miles north of U.S. Hwy 99; western edge of the Colorado Desert Comment
  UCSB6547  Ambrosia dumosa Leeuwen, Henry 1957-4-12 Riverside In Whitewater Canyon, 1 mile from U.S. 60-70-99 Comment
  UCSB7134  Ambrosia dumosa Yokoyama, Howard 1953-3-21 Riverside 9 miles east of Indio Comment
  UCSB7135  Ambrosia dumosa Hurd, Richard 1956-4-14 Riverside On road to Devils Garden, 3 mi. from Highway 99 Comment
  UCSC001456  Ambrosia dumosa Peter Kamb 1948-4-11 866 Riverside Aqueduct Road 5 mi. east of Garnet Aqueduct Road, Garnet - Coachella Valley 305 Comment
  VVC13  Ambrosia dumosa A. Louise Baartz 1969-5-22 s.n. San Bernardino Mojave Desert, 12 miles east of Victorville off Bear Valley Road. 921 Comment
  A414226  Ambrosia dumosa W. H. Shockley 1908-04-01 - 1908-05-01 Unknown [?] on Tonopah & Tidewater RR. Comment
  CAS-BOT-BC22365  Ambrosia dumosa W. G. Wright 766 San Bernardino San Bernardino County Comment
  CAS-BOT-BC22391  Ambrosia dumosa E. A. McGregor 1917-6-9 1018 Imperial Government Well Comment
  CAS-BOT-BC22619  Ambrosia dumosa J. Beley 1974-4-9 585 San Bernardino Center Line of Sections 21 & 22 Comment
  CAS-BOT-BC35145  Ambrosia dumosa Saichi Kawahara 1968-4-12 257 Inyo Little Sand Spring, 11 miles north of Grapevine Ranger Station, Death Valley 975 Comment
  GH414202  Ambrosia dumosa W. B. Brierly 1969-4-28 Unknown In Towne Pass area leading to Death Valley, Panamint Valley Comment
  GMDRC21  Ambrosia dumosa K. C. Hart 1978-5-3 29 San Bernardino Granite Mountains: On sandy-gravelly bajada adjoining west edge of Sheep Corral, c. 3400 1037 Comment
  GMDRC321  Ambrosia dumosa J. Evens 1988-4-19 28 San Bernardino Sweeney Granite Mountains Desert Research Center: At base of mountain, c. 4000 1220 Comment
  GMDRC833  Ambrosia dumosa M. Lopez, J. Andre 2000-4-15 6 San Bernardino Marble Mtns: Marble Mtns: In large wash, 2 mi. south of I-40. T7N R12E NW1/4 sec. 13. Elev. 3000 Feet. 915 Comment
  IRVC9312  Ambrosia dumosa Roy Yarnell 1966-4-16 154 San Bernardino Along State Highway #2 towards Julian. (San Diego County???) Comment
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Oct 7 2015
  JEPS28896  Ambrosia dumosa E. R. and B. L. 9147 Mono 20 mi n, on the way to Benton Station Bishop 1524 Comment
  JEPS40935  Ambrosia dumosa unknown San Bernardino Comment
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Jul 22 2010
  JOTR00920  Ambrosia dumosa Sipe, Frank 1958-3-13 223 Riverside Joshua Tree National Park. PORCUPINE WASH, PINTO BASIN Comment
  JOTR01262  Ambrosia dumosa Cole, James E. 1941-4-5 476 San Bernardino Joshua Tree National Park. FORTYNINE PALMS CANYON 609 Comment
  LA202916  Ambrosia dumosa M. Zaitlin; 1951-4-24 sn San Diego Anza Desert Comment
  POM289717  Ambrosia dumosa Herman Rexroth, Clare Rexroth 1932-3-25 s.n. Inyo 20 mi N Stovepipe wells. Comment
  POM91000  Ambrosia dumosa E. C. Jaeger 1925-12-23 s.n. Imperial Beale's Well Comment
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Aug 29 2016
  POM9645  Ambrosia dumosa Philip A. Munz 1920-12-28 4392 Imperial 15 mi E of Holtville -30 Comment
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Nov 21 2013
  RSA0035769  Ambrosia dumosa Sharon Kautto 1984-5-5 84 -34 San Bernardino Providence Mountains area. Intersection of Essex Road and Black Canyon Road headed towards Hole-In-The-Wall. Comment
  RSA0042755  Ambrosia dumosa J. R. Bruff 1928-12-29 401 Riverside Lone Cottonwood Ranch 2 mi S.E. of Dos Palmas Comment
  RSA0055748  Ambrosia dumosa R. F. Thorne, C. W. Tilforth, Larry E. DeBuhr, B. Tucker, R. K. Benjamin 1976-10-30 48686 San Bernardino Granite Mountains, eastern Mojave Desert: Southern, flat, sandy margin of Kelso Dunes. 793 Comment
  RSA0055821  Ambrosia dumosa Doris Bowers 1971-4-10 1663 San Bernardino Coyote Hole Wash, s/o Joshua Tree. Mojave Desert 838 Comment
  RSA0065402  Ambrosia dumosa William Gilbert 1969-4-24 s.n. San Diego Near Warner Springs, California Highway 79. Comment
  RSA0127863  Ambrosia dumosa G. Rink 2014-3-31 12482 San Bernardino Johnson Valley, west of the Bessemer Mine Road. 920 Comment
  RSA0130720  Ambrosia dumosa Glen Rink 2013-3-19 11891 Riverside About twelve west of Blythe, at the site of the proposed Quartzite solar power plant. 105 Comment
  RSA112964  Ambrosia dumosa Percy C. Everett, E. K. Balls 1956-7-7 21903 Inyo 1.9 mi. s. of Independence, along U.S. Hwy. 6/395. 1341 Comment
  RSA272722  Ambrosia dumosa James Henrickson 1978-5-28 3 San Bernardino Black Canyon, W end Black Mtn, ca. 23 air mi. NW of Barstow. 793 Comment
  RSA352200  Ambrosia dumosa P. M. Peterson 1981-4-11 86 Inyo E-facing slope at 180%. Cottonwood Canyon; 793 Comment
  RSA352949  Ambrosia dumosa Carol R. Annable 1983-4-24 597 Inyo 4 miles north of Beatty Junction on Beatty Road. 37 Comment
  RSA416957  Ambrosia dumosa Anstruther Davidson 1911-07 2567 Inyo Owenyo. [5 mi. south of Lone Pine along Southern Pacific RR] Comment
  RSA416959  Ambrosia dumosa George R. Johnstone 1928-4-3 s.n. Inyo Foot of Funeral Mts. 91 Comment
  RSA474187  Ambrosia dumosa F. R. Fosberg 1931-12-10 7147 Los Angeles Pebble [Pebbly] Beach, Santa Catalina Island. 10 Comment
  RSA90532  Ambrosia dumosa S. Carlquist 1958-3-30 425 Riverside 2 miles west of palm Springs, on Palm-Springs-Cabazon road. Comment
  RSA93928  Ambrosia dumosa F. W. Peirson 1920-2-16 1319 Riverside Colorado Desert. Garden of Eden east of Palm Springs. Comment
  RSA93929  Ambrosia dumosa Donald A. Johansen, Joseph A. Ewan 1932-4-11 7066 Riverside Mouth of Tahquitz Canyon Comment
  RSA93930  Ambrosia dumosa F. W. Peirson 1930-5-13 8801 Kern Red Rock Canyon 884 Comment
  SBBG7541  Ambrosia dumosa H. and M. Dearing 1933-4-6 2331 Inyo Panamint Mtns Comment
  SD128726  Ambrosia dumosa Darley F. Howe 1980-5-29 Inyo 6 miles north of Lone Pine on Highway 395 1189 Comment
  SDSU7097  Ambrosia dumosa Robert B. Sargeant 1966-3-27 San Diego Panoramic Point, south of Borrego-Palm Cayon campground, Anza-Borregp Desert State Park. Comment
  SEINET10725763  Ambrosia dumosa David B. Dunn 1941-4-11 Dunn 1123 San Diego Borrego Desert valley floor by the deserted ranch on way to Palm and Hell Hole Canyons. In Anza-Borrego Desert Sate Park. Comment
  SEINET10725764  Ambrosia dumosa A. K. Evans 1976-4-13 Evans 5206 Riverside Rocky slopes of Santa Rosa Mountains. Comment
  SEINET10725765  Ambrosia dumosa David B. Dunn, Harold L. Lint 1948-1-25 Dunn 3612 Riverside Pushawalla Canyon, Indio Hills of the Colorado desert; west of Indio. Comment
  SEINET10725766  Ambrosia dumosa David B. Dunn 1949-5-14 Dunn 5646 Unknown Collected on canyon sides of decomposed clay-shale; often gravelly. Fossil Pit area in canyon behind Painted Basin. Comment
  SEINET10725767  Ambrosia dumosa Percy Train 1937-4-2 Train s.n. Inyo West side Panamint Valley near Ballarat. 457 Comment
  SEINET10725768  Ambrosia dumosa Noel H. Holmgren, Patricia K. Holmgren 1973-3-16 Holmgren 6324 Inyo Death Valley, foot of Grapevine Mountains, near fork of Beatty road, 18.5 airlline miles north-northwest of the Monument Headquarters. 610 Comment
  SEINET10725769  Ambrosia dumosa Noel H. Holmgren 1974-3-28 Holmgren 7527 Imperial 3 airline miles southwest of Ocotilo. 274 Comment
  SEINET10816180  Ambrosia dumosa David B. Dunn 1949-5-14 Dunn 5599 San Bernardino Found 2 miles south of Hodge, 13 miles south of Barstow. Comment
  SEINET10849245  Ambrosia dumosa David B. Dunn, Howard Brown; Elizabeth M. McClintock 1947-3-15 Dunn 2895 Riverside Pushawalla Canyon Biota. Indio Hills. In dry wash. Comment
  SEINET10849246  Ambrosia dumosa David B. Dunn 1948-2-21 Dunn 3687 Riverside Found near bench on the east side of the palms. Pushawalla Canyon, Indio Hills of the Colorado desert; west of Indio. Comment
  SEINET10882134  Ambrosia dumosa David B. Dunn 1946-3-15 Dunn 2041 Riverside Collected on dry plateau in vicinity of Pushawalla Canyon, Indio Hills. Comment
  SEINET10882135  Ambrosia dumosa Billy Joe Cox 1975-4-23 Cox 4157 Riverside Palo Verde, 1-3 km W, (ca. 32 m S of Blythe). Riverside-Imperial Co. 70 Comment
  SEINET10948333  Ambrosia dumosa David B. Dunn 1946-3-15 Dunn 2037 Riverside Collected on dry plateau in vicinity of Pushawalla Canyon, Indio Hills. Comment
  SEINET11836221  Ambrosia dumosa H. E. Ahles 1955-1 8606 San Bernardino Needles Comment
  SEINET11842726  Ambrosia dumosa R. T. Schuh, Massie, B. M. 1985-1 San Bernardino St. Rt. 247, 26.7 mi S of Barstow 1000 Comment
  SEINET11855136  Ambrosia dumosa Unknown 1936-1 12840 Riverside Colorado Desert N of Palm Springs Comment
  SEINET11855137  Ambrosia dumosa E. A. Purer 1935-1 6455 Riverside western Colorado Desert Comment
  SEINET11855138  Ambrosia dumosa M. T. Doutt 7306 Inyo 1 mi S Keeler 1219 Comment
  SEINET231251 Image available Ambrosia dumosa Patti Novak Inyo 30 miles south of Bishop; on the alluvial fans of the Inyo Mountains. Owens valley; east of Owens River south of Taboos 1170 Comment
  SEINET231252 Image available Ambrosia dumosa Patti Novak 1986-4-3 Inyo 100 mi south of Bishop; east of Highway 395 and east of old railroad; west of Haiwee Reservoir Owens Valley. 1164 Comment
  SEINET5710309  Ambrosia dumosa Elinor Lehto 1976-1 L 19809 Inyo Just E of Death Valley National Monument ca. 1 mile N and 0.75 miles W of Ryan. W-facing bajada cut with washes.; Death Valley National Monument 732 Comment
  SEINET5710310  Ambrosia dumosa D. F. Howe 1980-1 s.n. Inyo 6 miles north of Lone Pine on hwy 395.; Lone Pine 1190 Comment
  SEINET5710312  Ambrosia dumosa R. L. Smith 1960-1 9 Riverside At base of San Jacinto Mountains, 15 miles north of Palm Springs.; Palm Springs Comment
  SEINET5710313  Ambrosia dumosa Alma L. Moldenke, Harold N. Moldenke 1976-1 30621 San Diego Borrego Springs, Colorado Desert.; Borrego Springs Comment
  SEINET6734808 Image available Ambrosia dumosa P. L. Comanor 1974-1 s.n. Inyo Death Valley National Monument 640 Comment
  SEINET6734810 Image available Ambrosia dumosa Bell, Gustafson 1941-5-17 5 Unknown Adjacent to Mojave Desert 914 Comment
  SEINET6734813 Image available Ambrosia dumosa L. Wise 1976-4-23 118 V Inyo Death Valley National Monument, lower part of Grapevine Canyon 305 Comment
  SEINET6734814 Image available Ambrosia dumosa E. Neese 1979-4-8 6966 Inyo Rd jct 3 miles southwest of Scotty's Castle in Death Valley 671 Comment
  SEINET6734817 Image available Ambrosia dumosa M. A. Franklin, J. Chandler 1986-10-19 4453 Inyo West slope Funeral Mountains, 20 miles east of Furnace Creek Ranch ( Death Valley ) 914 Comment
  SEINET6734819 Image available Ambrosia dumosa E. Neese 1979-4-8 7002 Inyo 7 miles north of Trona 610 Comment
  SEINET6738614 Image available Ambrosia dumosa I. W. Clokey 1935-4-17 6729 Riverside Mecca-Shafer Wells Comment
  SEINET6738722 Image available Ambrosia dumosa H. M. Hall 1905-1 5907 Riverside Near Mule Springs Comment
  SEINET6809426  Ambrosia dumosa John Thieret, Brandenburg, David 1982-6-6 53104 San Bernardino 11 mi E of Lucerne Valley Hwy 247; Hwy 247; 11 mi E of Lucerne Valley Comment
  SEINET7048010  Ambrosia dumosa Steven R. Hill, Kate Kramer 2001-4-27 33477 Imperial California Route 86/78, west side of road, near Kane Spring, 0.6 mile southeast of U.S. Border Patrol Station at San Felipe Wash bridge. About 3.3 miles southwest of the Salton Sea margin. Elevation about -170 feet. Comment
  SEINET788334  Ambrosia dumosa M. E. Jones 1884-1 3806 San Bernardino The Needles Comment
  SEINET7987805  Ambrosia dumosa Christopher Christie 1996-12-29 7 Unknown San Bernardino, California, In wash, Bullion Mountains, Sheephole Pass Comment
  SEINET8062486 Image available Ambrosia dumosa Deidre Conocchioli, Billy Sale 2014-3-26 301 San Bernardino Along Afton Road 3.4 miles NW of I-15. N of Dunn. 572 Comment
  SEINET8753905 Image available Ambrosia dumosa Ivan Johnston 1917-1 Unknown Colorado Desert. Mouth of Audreas Canyon. 244 Comment
  SEINET9118662  Ambrosia dumosa Donald Myrick 1965-1 1030 San Diego Near Borrego Springs; N Colorado Desert. 182 Comment
  UC219158  Ambrosia dumosa unknown Unknown Comment
  UC31942  Ambrosia dumosa unknown Unknown Comment
  UC402944  Ambrosia dumosa unknown Unknown Comment
  UC505318  Ambrosia dumosa Mark Kerr 1933-5-9 102 Inyo 13 mi s Independence 1066 Comment
  UC88782  Ambrosia dumosa G. P. Rixford 1891-1-1 Inyo Comment
  UCD128802  Ambrosia dumosa W. W. Robbins 1939-12-24 s.n. San Diego SE part of county. Comment
  UCD128812  Ambrosia dumosa Collector Unknown Date Unknown s.n. Unknown County unknown: location unknown. Comment
  CAS-BOT-BC35083  Franseria dumosa Ernest Christian Twisselmann 1969-5-21 15338 Kern Head of the creek west of the Freeway bridge. 784 Comment
  CLARK-A1045-225  Franseria dumosa George K. Helmkamp 1978-4-1 Riverside Palm Springs north edge of town; Palm Springs 7.5'Q Comment
  CLARK-A1656-660  Franseria dumosa Lois Ann Scott 1978-11-17 Riverside San Jacinto Mountains 152 Comment
  PASA1847  Franseria dumosa R. Peirce 1966-4-21 Riverside 2 mi. W. of Windy Point, 2 mi. S. of White Water P.O. Comment
  PASA834  Franseria dumosa Stason 1931-5-17 Los Angeles Mohave near Lancaster Comment
  RSA764993  Franseria dumosa Doris Bowers 1966-4-6 536 San Bernardino Mojave Desert, Calico Mtns., Calico Dig SBCM 579 Comment
  SEINET2028597 Image available Franseria dumosa Marcus E. Jones, A. M. 1884-5-3 3806 San Bernardino Needles Comment
  SEINET2030051 Image available Franseria dumosa C. L. Hitchcock 1940-3-29 5860 Riverside Cottonwood Canyon, ca. 100 yards east of Spring Comment
  SEINET2030087 Image available Franseria dumosa Ira L. Wiggins 1941-3-14 9575 Riverside Along eastern side of Salton Sea, 2.7 miles south of Mortmar Comment
  NY169400  Franseria dumosa J. C. Frémont 1844-1 374 Unknown Sandy uplands of the Mohave River, very common in all that region of calif Comment
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Jul 5 2010
  RSA0045508  Franseria dumosa William Blanchard 1932-4-16 s.n. Riverside Palm Springs Station. TR6. Comment
  SEINET2029740 Image available Franseria dumosa Bell, Gustafson 1941-5-17 5 Unknown Adjacent to Mohave Desert 914 Comment
  SEINET5924772 Image available Franseria dumosa L. C. Higgins 1974-1 8489 Riverside 5 mi S of Morongo Valley on Hwy 62 Comment



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