Search Results — 2000 specimen records retrieved (1886 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  SD229019  Abies concolor Dick Schwenkmeyer 2012-8-28 813 Riverside Fuller's Mill camp, 2.6 mi. east of intersection of highway 243 and Fuller's Mill road, 7.5 miles north of Idyllwild. 1799 Comment
  CAS-BOT-BC229325  Abronia villosa Alice Eastwood 1913-4-30 3111 Riverside Palm Springs Comment
  CAS-BOT-BC229329  Abronia villosa L. R. Abrams 1913-7-16 5010 Riverside Between Elsinore & Corona, Riverside Canyon Comment
  CAS-BOT-BC229364  Abronia villosa Geo. B. Grant 1902-8-1 s.n. Riverside San Jacinto Comment
  POM122577  Abronia villosa Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center. Chuckwalla Valley. Comment
  GMDRC5052  Abronia villosa var. aurita J. Andre, G. L. Clifton 2011-2-22 17473 Riverside Coachella Valley: N. Palm Springs approx. 0.3 mi. north of Hwy 111, growing in vacant lot at corner of San Rafael and Virginia Street 189 Comment
  RSA652385  Abronia villosa var. aurita Jim M. Morrow 1959-5-24 s.n. Riverside Edge of old Hwy 71, Temescal Canyon. Near Alber hill. 305 Comment
  RSA68330  Abronia villosa var. aurita G. R. Campbell 1951-5-30 16148 Riverside Pine Meadow Ranch, SE of Kenworthy 1433 Comment
  RSA716396  Abronia villosa var. aurita Scott D. White, Angelia Carey 2004-4-5 9978 Riverside San Jacinto Mtn. Foothills: North of Valle Vista. Indian Creek Watershed. 518 Comment
  UCR130712  Abronia villosa var. aurita George K. Helmkamp, E. A. Helmkamp 1998-6-27 4078 Riverside San Jacinto Mtns., Garner Valley, along Hwy 74 at Morris Ranch Rd. 1372 Comment
  RSA779627  Abronia villosa var. villosa Duncan S. Bell 2010-4-1 661 Riverside Arica Mountains: east side of the mountain range, west side of Rice Valley, near the lowest eastern drainage point for the Arica mountains ; approximately 4.3 air miles southeast of the ghost town of Rice. 209 Comment
  HSC24824  Acacia greggii James Henrickson 1971-4-2 5474 Riverside Hidden Oasis, 13 mi. E of Palm Spring 183 Comment
  RSA414908  Acacia greggii var. arizonica Anstruther Davidson 1892-05 s.n Riverside Banning. Comment
  UCR225732  Acacia redolens A. C. Sanders, T. B. Salvato 2011-3-30 38895 Riverside Peninsular Range, city of Lake Elsinore, N of Pasadena St. c. 0.35 km NW of Central Ave. intersection 385 Comment
  UC217887  Acer negundo var. californicum P. A. Munz 1922-6-24 5804 Riverside along upper parts of Pipe Creek San Jacinto Mts., , Pipe Creek (Hemet Valley) 1584 Comment
  UC29244  Achillea millefolium H. M. Hall 1901-7-20 2507 Riverside Strawberry Valley; San Jacinto Mts 1615 Comment
  CAS-BOT-BC218714  Achnatherum coronatum Roxana S. Ferris; Ruth P. Rossbach 1938-5-20 9663 Riverside 3 miles below junction of Idylwild Road on State Highway #74 Comment
  UCD50319  Achnatherum coronatum Frank W. Gould 1943-4-17 2128 Riverside 12 miles S of Corona on road to Elsinore. Comment
  SD185215  Acmispon argophyllus T. B. Salvato, John F. Green 2004-5-27 632 Riverside Head of Banning Canyon close to the San Bernardino Co. line, 0.5 mile southeast of Oak Gklen Conservation Camp. 1402 Comment
  SD111979  Acmispon glaber var. brevialatus Barbara Ertter, Jeffrey Strachan 1980-5-20 3469 Riverside West side of Whitewater Hill, east side Whitewater Wash, NW end of Coachella Valley north of I-10 456 Comment
  RSA0125413  Acmispon heermannii var. heermannii J. R. Bruff 1928-4-5 209 Riverside Between Wiley Well and Beals Well. Comment
  SD232684  Acmispon nevadensis var. davidsonii Scott D. White 1996-8-1 4418 Riverside Idyllwild Area: Hwy 243 at Deer Springs trailhead and adjacent area. Comment
  UCR178317  Acourtia microcephala T. B. Salvato, Tracy Tennant 1998-7-18 MOR- 622 Riverside San Bernardino Mtns., Morongo Indian Reservation, vicinity of Wood and Potrero Canyons 1280 Comment
  UCR93832  Acourtia microcephala G. R. Ballmer, K. T. Stockwell 1995-6-8 s.n. Riverside Peninsular Range, Warm Springs Creek, Budweiser Ranch, 0.25-1 mi upstream of Los Alamos Road crossing 457 Comment
  CDA14288  Acroptilon repens R. O'Connell 1998-7-8 s.n. Riverside at Santa Ana River Regional Park. 0 Comment
  RSA730044  Adenophyllum porophylloides R. F. Thorne 1966-10-15 41799 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway Comment
  RSA20025  Adenostoma sparsifolium I. W. Clokey, E. G. Anderson 1935-8-21 6674 Riverside West of Keen Camp P. O. 1200 Comment
  SEINET5537635  Adenostoma sparsifolium H. S. Gentry 1954-1 14250 Riverside Dripping Springs, along Route 79. Comment
  SFV20160  Adenostoma sparsifolium J. N. Hogue, S. G. Hogue, J. M. Wrublik 2005-9-5 263 .7 Riverside Santa Rosa Mountains Santa Rosa Mountain Truck Trail (=USFS Road 7S02). 0.7 miles from Highway 74. 1500 Comment
  UC859044  Adenostoma sparsifolium E. C. Jaeger 1922-8-20 1005 Riverside n. slope San Jacinto Mt. 1371 Comment
Read comments
May 29 2011
  UCR18785  Adiantum capillus-veneris John C. Roos 1948-5-15 3850 Riverside Sonoran (Colorado) Desert, Eagle Mountains, upper Lost Palms Canyon 1037 Comment
  UCR151408  Adiantum jordanii D. L. Banks 1997-3-1 1355 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation. Pechanga Creek, east of the'Fiesta Grounds' to the spring on the northern fork of Pechanga Creek at the eastern end of the Reservation 427 Comment
  OBI6574  Agave deserti H. E. McMinn 1935-10-27 4047 Riverside E of Ribbonwood Palms to Pines Hwy Comment
  RSA221017  Agoseris grandiflora var. grandiflora E. W. Lathrop 1966-5-26 6345 Riverside Mail Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  UCR165188  Agrostis exarata Margaret Bornyasz 2003-8-8 s.n. Riverside Peninsular Ranges, San Jacinto Mtns., near Azalea Creek, above Twin Pines Creek Drainage 1085 Comment
  UCR24979  Agrostis exarata A. C. Sanders 1980-7-22 1704 Riverside Peninsular Range; San Jacinto Mtns, [Forest Service] Rd. 4S02, c. 2.5 (airline) mi north of Pine Cove and c. 0.25 mi south of Dark Canyon campground 1768 Comment
  POM14992  Allenrolfea occidentalis Mary F. Spencer 1920-3-15 s.n. Riverside Mecca, Colorado Desert. -48 Comment
  SBBG1743  Allenrolfea occidentalis H. and M. Dearing 1940-11-10 5019 Riverside Thousand Palms Cyn Comment
  SBBG72628  Allenrolfea occidentalis M. N. Ackley -Mar-1927 421 Riverside Salton Sea -76 Comment
  SD185253  Allionia incarnata John Green 2005-2-2 Riverside Salton Basin, transect along Coachella Canal between siphons 29 and 30, ca. 3 miles east of Desert Beach 24 Comment
  RSA698213  Allionia incarnata var. nudata J. Russell Bruff 1929-12-28 449 Riverside Dos Palmas Comment
  POM13074  Allium burlewii E. C. Jaeger s.n. Riverside San Jacinto Mountains. Comment
  IRVC12871  Allium haematochiton C. A. Taylor 1966-3-25 66 40 Riverside 1 mi. N of Elsinore City on Hwy 74. Comment
  RSA367107  Allium haematochiton Ora M. Clark 1929-3-2 1602 Riverside Near Alberhill Comment
  SD136977  Allium lacunosum var. davisiae Steve Boyd, Tim Ross 1992-5-15 7386 Riverside Southern Santa Ana Mts, SE flank of Elsinore Peak at 'Onion Hill', grassy knoll of clay soil ca. Ao mile SE of radio towers, along old Main Divide Rd track. N & W sides of hill in semi-barren scurry zone at contact between grassland & chaparral. 1021 Comment
  UCR193130  Allium lacunosum var. davisiae A. C. Sanders, Tim Thomas 2008-6-20 35532 Riverside Peninsular Range; San Jacinto Mtns., May Valley near Fleming Ranch, north of Bonita Vista Rd. and east of Herkey Creek 1550 Comment
  RSA500142  Allium lacunosum var. lacunosum Robert F. Thorne, E. W. Lathrop 1975-5-25 45560 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro 609 Comment
  UCR225670  Allium marvinii Steve Boyd 2010-5-16 12275 Riverside San Jacinto Mountains, Northwestern base of San Jacinto Mountains along Highland Springs Ave, 1.5 mi south of Breckenridge Ave, City of Banning 732 Comment
  RSA479529  Allium munzii Steve Boyd, Walter Wisura 1987-4-29 2071 Riverside Gavilan Hills, south of Ida-Leona Road, south of Harford Springs County Park 640 Comment
  UC1544765  Allium munzii Steve Boyd 1986-4-22 1778 Riverside e edge of plateau remnant of ridge e Estelle Mt. (s of Dawson Canyon); Gavilan Hills 670 Comment
  RSA753543  Allium peninsulare Michael Wall 2009-6-6 519 Riverside San Jacinto Valley, Bautista Canyon Rd. ca. 1.0 miles SE of jct. with Fairview Ave. on slopes at sharp turn in the road 630 Comment
  UCR104172  Allium peninsulare Scott D. White 1997-5-25 5236 Riverside San Jacinto Mtns, Bautista Canyon: Hixon Trail (USFS No. 2E43), between trailhead at Bautista Canyon Road and intermittent stream crossing at c. 3200 ft 976 Comment
  RSA644111  Allium praecox Scott D. White 1995-3-30 2676 Riverside Moreno Valley; hills +/- 0.7 air mile directly S of 60 Fwy and west of bend in Moreno Beach Dr., (USGS Sunnymead 7 1/2' quad shows ''Moreno'' BM 2067 at top of hill). 579 Comment
  UC3117  Allium praecox Mrs. Gregory 1892-1 Riverside San Jacinto Comment
  UCR120804  Allium praecox Ian G. Gillespie, Steve Boyd 2000-4-15 01 Riverside Lake Mathews, Drainage on E side of Monument Peak 488 Comment
  RSA614533  Allophyllum divaricatum A. C. Sanders, Pamela J. MacKay, Tim Thomas, O. Clarke 1997-5-4 20633 Riverside San Jacinto Mountains north side along Hwy 243, 1.5 mi below Twin Pines Ranch Road (McMullen Flat), north slope of Peak 3740. Comment
  RSA192034  Allophyllum glutinosum H. A. Zuill 1966-6-19 229 Riverside On the Los Alamos Ranch road. Comment
  SD107766  Allophyllum glutinosum C. W. Tilforth, B. Busenberg 1980-6-10 1978 Riverside 0.1 mile in from Highway 74 on north leg ot Thomas Mountain Road, 1.0 mile south of Lake Hemet. 1387 Comment
  UC718493  Allophyllum glutinosum P. C. Everett 1935-6-17 7155 Riverside Coldwater Canyon Trail to Santiago Pk. (1 1/2 mi. above Glen Ivy Resort); Santa Ana Mts. 563 Comment
  UCR68844  Allophyllum glutinosum Steve Boyd, T. S. Ross 1990-5-11 4623 Riverside Agua Tibia Mountains, Cleveland National Forest, base of Agua Tibia Mtn, east of Dripping Springs campground, south of Hwy 79 671 Comment
  UCR92338  Allophyllum glutinosum Scott D. White, M. D. Wilcox 1995-7-13 3478 Riverside Santa Ana Mtns., Unnamed canyon c. 0.25 mi. SW of Grand Ave., Lake Elsinore, directly downslope from hairpin turn on State Hwy 74. 488 Comment
  SEINET3917840  Alopecurus howellii George E. Johnston 1975-6-26 10 Riverside Mesa de Burro, 3 mi. west of Murrieta, Santa Rosa, CA.; 0 610 Comment
  UCR220336  Alopecurus saccatus D. E. Bramlet 1992-4-29 2257 Riverside Peninsular Range; Perris-Aguanga Basin Region, San Jacinto Valley, 8 km SW of Hemet, NW of the intersection of California Ave. and Stowe Rd., c. 250 ft. north of Stowe Rd. and c. 350 ft. west of California Ave. 456 Comment
  UCR174323  Amaranthus albus A. C. Sanders, D. Bramlet, Mihai Costea, T. B. Salvato 1999-10-15 23172 Riverside San Jacinto Valley, Mystic (San Jacinto) Lake, 1.4 mi. east of Jackrabbit Trail on Gilman Springs Rd., 1.4 mi. south of Eden Hot Spring 433 Comment
  UCR263225  Amaranthus blitoides A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41467 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 2.95 miles ESE of Cabazon, c. 0.84 mi. NNW (335 deg. ) of One Horse Spring, south of I-10 and SE of water bottling plant, edge of wind farm 452 Comment
  CDA3239  Amaranthus cruentus A. C. Sanders 2002-1-14 24890 Riverside Upper Santa Ana River/San Bernardino Valley Region; Riverside, east side of Streeter Ave. just S of Scott Ave., between Arlington and Central Aves. Comment
  SEINET12764893  Amaranthus fimbriatus Louis C. Wheeler 1966-10-15 8985 Riverside San Jacinto Mountains, by Black Hill, by Pines to Palms Highway.; 0 975 Comment
  RSA338589  Amaranthus palmeri A. C. Sanders 1985-8-24 5949 Riverside Near oasis in lower Coachella Valley. On E side of Hwy 195, ca 0.5 mi N of intersection with Hwy 86 and just N of Ave 77. -52 Comment
  OBI17114  Ambrosia acanthicarpa Lewis S. Rose 1966-12-11 66094 Riverside Palm Springs 152 Comment
  RSA595915  Ambrosia acanthicarpa Darin L. Banks, Lauren Raz 1996-11-5 1174 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, E of San Gabriel Church; Along the main road in the Reservation, approximately 20 m E of its intersection with Pechanga Creek. 393 Comment
  UCR92226  Ambrosia acanthicarpa D. L. Banks, Steve Boyd 1995-10-17 0756 Riverside NW Palomar Mtns, Cleveland National Forest, Agua Tibia Mtns, Agua Tibia Wilderness Area, south of Dripping Springs Campground 512 Comment
  CAS-BOT-BC22377  Ambrosia dumosa I. Johnston 1917-4-4 1034 Riverside Mouth of Andreas Canyon 243 Comment
  LA26697  Ambrosia dumosa William Shapeero; 1954-4-28 Riverside Joshua Tree National Monument Comment
  RSA650430  Ambrosia dumosa David B. Dunn 1948-2-21 3687 Riverside [Pushawalla] 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
  UC68912  Ambrosia dumosa H. M. Hall 1905-4-1 5907 Riverside near Mule Springs; Colorado Desert Comment
Read comments
Sep 11 2011
  UC718798  Ambrosia salsola L. R. Abrams 1941-4-24 13935 Riverside near Cabazon; San Gorgonio Pass Comment
  SD127615  Ambrosia salsola var. salsola David Charlton 1988-2-18 1124 Riverside South side of Little San Bernardino Mountains. Fargo Canyon Road to Cottonwood Wash,1 mile east of the Junction Dillon Road and Fargo Cyn Road 609 Comment
  UC51611  Ambrosia salsola var. salsola Jos. Burtt Davy 1902-3-25 7938 Riverside Indio Comment
  UC64802  Ambrosia salsola var. salsola E. E. Schellenger 1904-3-15 66 Riverside McCoy Wash Colorado Desert, Paloverde Comment
  POM265819  Ammannia coccinea J. C. Roos 1937-6-7 2401 Riverside S base of Jackrabbit Trail, San Jacinto Valley Comment
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Mar 20 2011
  RSA653237  Ammannia coccinea Mitch Provance 2000-7-4 2103 Riverside Riverside: Santa Ana River Wash, between the Market St. and Riverside Ave crossings. 244 Comment
  SD146228  Ammannia coccinea A. C. Sanders, Mitch Provance 1999-9-26 23114 Riverside San Jacinto Valley: Mystic (San Jacinto) Lake, 1.4 mi. SE of Jackrabbit Trail on Gilman Springs Rd. 1.4 mi. SE of Eden Hot Spr. 433 Comment
  SBBG68008  Amorpha californica Anstruther Davidson -May-1893 Riverside Banning Comment
  POM1907  Amorpha fruticosa Crawford 1919-6-9 1225 Riverside Santa Ana River, near Corona. 152 Comment
Read comments
Sep 17 2008
  CAS-BOT-BC213973  Amsinckia L. R. Abrams 1926-3-26 11057 Riverside Palm Springs to Palm Canyon Comment
  UCR263235  Amsinckia A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41455 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 2.95 miles ESE of Cabazon, c. 0.84 mi. NNW (335 deg. ) of One Horse Spring, south of I-10 and SE of water bottling plant, edge of wind farm 452 Comment
  CLARK-A1528-323  Amsinckia intermedia C. M. Flanagan 1973-4-26 OO 312 Riverside Morongo Indian Reservation 914 Comment
  SBBG37532  Amsinckia intermedia R. N. Muller 1967-4-16 Riverside UC Riverside campus, 20 yds S of grape control plot on S side of campus Comment
  SD152912  Amsinckia intermedia Steve Boyd 1992-4-15 6867 Riverside Santa Ana Mtns, San Mateo Cyn Wilderness Area. Bluewater Cyn along Bluewater Tr. downstream to the confluence with San Mateo Creek. 334 Comment
  SD237358  Amsinckia intermedia A. C. Sanders, Matthew Malle 2010-4-23 37985 Riverside Peninsular Range: Menifeee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  UC494722  Amsinckia intermedia Philip A. Munz 1932-3-24 12025 Riverside n of Elsinore 304 Comment
  UCR167069  Amsinckia intermedia Scott D. White 2005-3-29 10845 Riverside San Gorgonio Pass, Cabazon: alluvial fan and benches west of San Gorgonio river and south of I-10 fwy. west of existing gravel quarry, likely to be proposed for quarry expansion 598 Comment
  UCR250214  Amsinckia intermedia A. C. Sanders 2014-4-8 40978 Riverside Peninsular Range, Temescal Canyon, along Temescal Canyon Rd. c. 280 m NE of the I-15 crossing, near mouth of Mayhew Canyon 317 Comment
  CSUSB1577  Amsinckia menziesii R. Pirot 1975-5-10 S. N. Riverside Juniper Flats road and Highway 74, Homeland 542 Comment
  SD126651  Amsinckia menziesii Jerilyn Hirshberg 1989-3-20 Riverside Santa Rosa Plateau, South of town of Murrieta: Southwest of Mesa de Burro 609 Comment
  UCR127547  Amsinckia menziesii A. C. Sanders, T. B. Salvato 2003-5-21 26802 Riverside Elsinore Valley, Wildomar, old ranch parcel SE of Wesley St. and SW of Laguna Rd., west of Orange St., NE of Palomar St. 402 Comment
  UCR116470  Amsinckia menziesii var. menziesii A. C. Sanders, T. B. Salvato 2001-3-30 23864 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon west of junction of Av. Pina Colada 366 Comment
  UCR95231  Amsinckia menziesii var. menziesii D. L. Banks, Dylan Hannon 1996-5-3 0988 Riverside NW Palomar Mtns, Agua Tibia Mtns; Foothills south of Hwy 79; east of the Dripping Spring Campground; c. 300 m east of the Dripping Springs Guard Station 488 Comment
  CSUSB995  Amsinckia tessellata Pam Maynard 1974-4-25 S. N. Riverside Box Springs mountians-- crevass at East end of Big Springs road 670 Comment
  POM14034  Amsinckia tessellata P. A. Munz, D. D. Keck 1922-4-15 4987 Riverside Near Moreno. Grain field. 366 Comment
Read comments
Mar 20 2011
  UCR114829  Anagallis arvensis Mitch Provance 1998-7-23 923 A Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 305 Comment
  HSC103425  Anaphalis margaritacea D. Atwood 1993-3-26 17648 Riverside Summit of Santa Ana Mts., 4.8 mi. S of Lake Elsinore, along Hwy. 74 813 Comment
  RSA92461  Ancistrocarphus filagineus J. C. Roos, L. Roos 1954-5-11 6118 Riverside Reche Canyon (Same locality as number 4773) 610 Comment
  RSA653194  Andropogon glomeratus A. C. Sanders, Pam MacKay, Tim Thomas, O. F. Clarke, et al. 1996-11-23 19657 Riverside San Bernardino Mountains.: Whitewater Canyon, just above Bonnie Bell, 2.3 miles below stream crossing near fish hatchery, E of VAMB Captain, 33 deg 57'N, 116 deg 38.5'W [UTM 10km cell: 11S NH-3E, 5N Whitewater] 534 Comment
  UCR160883  Andropogon glomeratus T. B. Salvato, Kelly Volansky 2004-11-17 114 Riverside Santa Ana Mtns, foothills at edge of Temescal Valley, development called 'Trilogy at Glen Ivy,' between Bixby and Brown Canyons 396 Comment
  POM153403  Anemopsis californica P. A. Munz, I. M. Johnston 1928-9-12 11302 Riverside Marsh, 1/2 mile N. of Temecula. Comment
  CHSC260  Anthemis cotula S. Westerberg 1934-3-23 Riverside Palm Springs. Comment
  UCR17122  Anthemis cotula A. C. Sanders 1973-5-20 0803 Riverside Perris-Aguanga Basin region, Perris Valley, Rider Road 0.5 mi east of Perris Blvd. 459 Comment
  POM17948  Antirrhinum coulterianum Philip A. Munz 1923-6-14 7106 Riverside Trail from Glen Ivy to Santiago Peak. 1006 Comment
  RSA263677  Antirrhinum coulterianum E. W. Lathrop 1968-5-2 6953 Riverside Mian DIvide Truck Trail between El Carriso and San Mateo Canyon. Cleve Nat'l forest 1220 Comment
  RSA425776  Antirrhinum coulterianum Ora M. Clark 1929-3-16 1686 Riverside Near Cabazon, Colorado Desert. Comment
  RSA503413  Antirrhinum coulterianum J. D. Olmsted 1962-5-10 3642 Riverside Crest between Sandia Creek and DeLuz Creek drainages. 259 Comment
  RSA651284  Antirrhinum coulterianum Marcy Keys 1981-5-16 68 Riverside 2 miles southeast of Lake Elsinore where Arbalado Lane runs into foothills. 404 Comment
  RSA703397  Antirrhinum filipes LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda L. Worlow 2005-2-17 1449 Riverside Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  RSA80435  Antirrhinum filipes F. W. Peirson 1920-2-16 1101 Riverside Palm Canyon stream below the canyon, Palm Springs. region Comment
  POM98994  Antirrhinum filipes E. C. Jaeger 1926-3-24 s.n. Riverside Eagle Mts, eastern Riverside Co. 610 Comment
  UCR16846  Antirrhinum nuttallianum subsp. nuttallianum Margaret-Lee Dean 1965-4-5 s.n. Riverside Perris-Aguanga Basin Region, Bernasconi Hills, 6 mi east of Hwy 395 on Martin Road 488 Comment
  UCR165413  Apiastrum angustifolium A. C. Sanders 2005-4-21 29564 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UCR19389  Apiastrum angustifolium C. S. Papp 1960-5-17 21 Riverside Elsinore Comment
  OBI37485  Apium graveolens Steve Boyd 1985-7-23 1011 Riverside De Luz Rd, 7 mi W of Rancho Calif 366 Comment
  RSA0123371  Apocynum cannabinum Duncan S. Bell, Thomas Stoughton 2016-4-14 9303 Riverside Santa Rosa Mountains; eastern drainage of Asbestos Mountain; at a spring in Carrizo Creek approximately 1 air mile north of Black Hill. 758 Comment
  SDSU12238  Apocynum cannabinum Shasta Gaughen, M. G. Simpson 2000-4-29 9 Riverside Comment
  RSA761226  Aquilegia formosa Shawn Krosnick, C. Martinez, Naomi Fraga, L. McDade 2010-8-14 731 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  RSA0126162  Arabis glabra Christopher Davidson 1977-5-18 5630 Riverside Santa Ana Mts, Cleveland National Forest, Bear Springs. 1219 Comment
  RSA557743  Arabis johnstonii John F. Emmel 1983-6-6 862 Riverside SE end San Jacinto Mountains, ridge 0.8 air mile N of Pyramid Peak 2072 Comment
  UCR20547  Arabis pulchra W. W. Mayhew 1977-6-12 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1921 Comment
  UCR54248  Arabis pulchra David Charlton 1988-5-21 1930 Riverside San Jacinto Mtns., Thomas Mtn Rd, west of Garner Valley and south of Lake Hemet on Hwy 74 1829 Comment
  UCR153380  Arabis sparsiflora R. F. Thorne, Et al. 1969-6-24 38138 Riverside Peninsular Ranges; San Jacinto Mountains, San Bernardino National Forest. Hill north of James Reserve and Lake Fulmor 1677 Comment
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Nov 13 2008
  UC66491 Image available Aralia californica E. A. Zumbo 1904-1 430 Riverside <Cold Water> Canyon Santa Ana Mts., <Cold Water> Canyon Comment
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Jun 23 2011
  RSA629150  Arctostaphylos Jon E. Keeley 1992-7-17 16765 Riverside Rd. to Thomas Mtn. (5S15), 4.3 km north of Toolbox Spring. San Jacinto Mtns. 1920 Comment
  RSA629154  Arctostaphylos Jon E. Keeley 1992-7-17 16781 Riverside Rd. to Thomas Mtn. (5S15), 4.3 km north of Toolbox Spring. San Jacinto Mtns. 1920 Comment
  RSA629176  Arctostaphylos Jon E. Keeley 1992-7-16 16602 Riverside Hwy 371 & Burnt Valley Rd. San Jacinto Mtns. 1250 Comment
  UCR278158  Arctostaphylos A. C. Sanders, Amy Litt, Yi Huang 2017-2-1 42670 Riverside Peninsular Range; Santa Ana Mountains, Santa Rosa Plateau, Squaw Mountain, Avenida Escala near Hacienda Dr. intersection, 2.35 air km east of Tenaja Guard Station 747 Comment
  HSC25510  Arctostaphylos glandulosa Richard Spjut 1972-3-14 2276 Riverside San Jacinto Mtns., along Hwy. 1 and Hwy. 74 in San Bernadino Natl. Forest 1220 Comment
  RSA629401  Arctostaphylos glandulosa Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19520 Riverside Southwest of Wildomar, off Hacienda Rd., north of Avenida La Cresta, west of Clinton-Keith Rd., southern Santa Ana Mtns. 820 Comment
  UCR273495  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42622 Riverside Peninsular Range; San Jacinto Mtns., Hwy 74 at McGaugh Rd., west slope of the mountains below Mountain Center 1314 Comment
  POM254953  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-13 s.n. Riverside Bedford Road, Santa Ana Mts. 1098 Comment
  RSA632251  Arctostaphylos glauca Jon E. Keeley 1974-6-6 4092 Riverside Past Agunga [Aguanga?] across from ranch with blue fish sign. 60 Comment
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May 16 2016
  RSA633573  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Rx Rothrock 1992-11-11 22511 Riverside Andreas Canyon, ca. 5 km east of Saddle Junction, San Jacinto Wilderness area, eastern San Jacinto Mountains. 1950 Comment
  RSA633683  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-9-27 21775 Riverside Dirt road to Santa Rosa Mountain, 9.2 km southeast of Highway 74, northwest side of Santa Rosa Mountains. 1995 Comment
  RSA633692  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-9-27 21766 Riverside Dirt road to Santa Rosa Mountain, 9.2 km southeast of Highway 74, northwest side of Santa Rosa Mountains. 1995 Comment
  RSA633741  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20111 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  POM19646  Arctostaphylos pringlei subsp. drupacea Mary F. Spencer 1923-6-18 2218 Riverside Idyllwild, San Jacinto Mt. 2134 Comment
  POM367423  Arctostaphylos pringlei subsp. drupacea N. C. Cooper 1944-5-20 1280 Riverside Palms to Pines Highway [Hwy 74], San Jacinto Mountains. 1280 Comment
  POM49832  Arctostaphylos pringlei subsp. drupacea P. A. Munz, I. M. Johnston 1924-7-29 8855 Riverside 5 miles SE of Poppet Flat, San Jacinto Mtns. 1372 Comment
  RSA59196  Arctostaphylos pringlei subsp. drupacea Frank W. Gould 1943-4-18 2135 Riverside 8 miles east [NW] of Idyllwild Comment
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Sep 29 2011
  RSA635648  Arctostaphylos pringlei subsp. drupacea Jon E. Keeley 1992-7-16 16645 Riverside Road to Santa Rosa Mountain (7S02), 7.5 km south of Highway 74. 1860 Comment
  SFV2660  Arctostaphylos pringlei subsp. drupacea A. Thompson 1959-4-10 Riverside San Jacinto Mountains Along side San Gorgonio Road. 1799 Comment
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Jun 3 2013
  UC1861761  Arctostaphylos pringlei subsp. drupacea Steve Boyd, Valerie Soza 2004-6-22 11552 Riverside Peninsular Ranges: San Jacinto Mountains region: Western flank of the range, vicinity of Alvin Meadows and Chimney Flats, west of Idyllwild along forest service road 5N13 near 5N06. 1463 Comment
  POM49833  Arctostaphylos pungens P. A. Munz 1924-7-29 8876 Riverside Lone Oak Ranch, Banning-Idyllwild Road. 1037 Comment
  RSA635811  Arctostaphylos pungens Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20103 Riverside Highway 371, 1 km east of Anza. 1220 Comment
  UCD53762  Arctostaphylos pungens R. N. Raynor 1933-3-31 s.n. Riverside South side of San Jacinto Mountain. Comment
  RSA636154  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19539 Riverside W of Temecula, N-facing slopes off Carancho Rd., 6 km NW of De Luz, eastern Santa Margarita Mtns. 440 Comment
  RSA636176  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19477 Riverside West of Temecula, off Colman Rd., 0.8 km north of Carancho Rd. and west of De Luz Rd., eastern Santa Margarita Mountains. 590 Comment
  RSA667364  Arctostaphylos rainbowensis A. C. Sanders, Kent Beaman 2002-5-10 25056 Riverside Santa Ana Mtns., Santa Rosa Plateau: hills west of the head of De Luz Creek, 0.4 mi south of Tenaja Rd. on west side of Calle Roble near Avenida Matorral. 671 Comment
  UCR213839  Arenaria macradenia Scott D. White, Justin M. Wood 2009-5-21 12856 Riverside San Jacinto Mountains, Garner Valley, near abandoned duck ponds, south of Quinn Flat 1366 Comment
  RSA339663  Argythamnia serrata C. W. Tilforth 1980-5-28 54166 Riverside San Bernardino Mountains: Dry Colorado Desert slopes, S-facing and W-facing, N0S rocky rifge at E side of Whitewater River at mouth of canyon, ca. 1/4-1/2 mile E of Whitewater Post Office. On rocky ridge at S end. Comment
  CAS-BOT-BC137650  Aristida adscensionis Carl B. Wolf 1932-4-27 2987 Riverside Colorado Desert. 14 miles east of Mecca on Blythe Road (east of Shavers Well). 152 Comment
  LA9312  Aristida adscensionis H. S. Yates; 1937-3-23 6648 Riverside 15 N. N. W. of Mecca Comment
  UC1714479  Aristida adscensionis I. M. Johnston 1918-4-27 1861 Riverside Temescal Canyon 365 Comment
  UCD56426  Aristida adscensionis D. C. Finfrock 1951-5-10 s.n. Riverside Hwy. 60-70 at Black Rock, 10 miles west of Blythe. Comment
  POM308114  Aristida adscensionis var. modesta Henry J. Ramsey, Henry J. Ramsey 1939-11-28 2936 Riverside 10 miles east of Indio. Comment
  SEINET14198934  Aristida purpurea J. C. Roos 1965-9-26 Riverside Palm Springs, in a parkway 122 Comment
  CAS-BOT-BC500348  Aristida purpurea var. nealleyi A. C. Sanders; Jim Malusa 2015-3-10 41372 Riverside Sonoran (Colorado) Desert: N end of Chocolate Mountains, Tabaseca Tank, US Navy Chocolate Mts Aerial Gunnery Range 610 Comment
  UC577596  Aristida purpurea var. nealleyi H. S. Yates 1937-6-27 6723 Riverside head of Deep Canyon; Thermal Quad. Comment
  RSA0124743  Aristida purpurea var. wrightii Duncan S. Bell, LeRoy Gross 2016-3-9 8842 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; central section of range, approximately 1.75 air miles north of Gucci Spring. 551 Comment
  CAS-BOT-BC90190  Artemisia californica A. M. White 1974-6-4 1409 Riverside Indian Road ca. 15 mi. W. of Sun City 1219 Comment
  RSA543306  Artemisia californica Steve Boyd 1991-3-17 5490 Riverside Jurupa Hills, N of Glen Avon. Cove on S flank, just W of Soto St. from white limestone outcrops to summit E of Pyrite Canyon. Comment
  UCR141241  Artemisia californica A. C. Sanders, Kelly Volansky 2004-10-6 28813 Riverside Santa Ana Mtns./Santa Rosa Plateau, 41050 Avenida La Cresta, south of Sierra Maria Rd. and c. 1.5 mi. north of Tenaja Rd., c. 2 miles NW of the Mesa de Colorado 671 Comment
  POM161527  Artemisia dracunculus Ralph Hoffmann 1929-9-6 s.n. Riverside Tahquitz Valley, San Jacinto Mts. 2438 Comment
  SBBG62495  Artemisia ludoviciana M. Lewis 1947-8-26 11 Riverside Skunk Cabbage Meadow 2194 Comment
  SEINET269257  Artemisia ludoviciana M. A. Patten, S. J. Myers 1993-8-20 Riverside Along Tahquitz Creek and in neighboring creosote scrub behind the debris basin dam in Palm Springs 183 Comment
  RSA725793  Artemisia tridentata subsp. tridentata R. E. Riefner 2006-9-19 06 -442 Riverside Temecula Valley, c. 0.1 mi. west of I-15 Freeway along Temecula Creek. 301 Comment
  SEINET2044554 Image available Artemisia tridentata var. angustifolia H. S. Gentry 1954-7-25 14251 Riverside Dripping Springs, along route 79. Comment
  RSA0119962  Arundo donax Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-24 9073 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 5.25 air miles southeast of the summit of Martinez Mountain. 621 Comment
  CLARK-A1528-1460  Asclepias albicans John C. Roos 1947-2-14 3253 Riverside Hayfield Comment
  SBBG87638  Asclepias californica A. C. Sanders, B. Pitzer 1986-4-30 6488 Riverside head of Bee Cyn along Bee Cyn Rd, 1.7 mi above the mouth of the cyn at the San Jacinto River valley 792 Comment
  UCR17948  Asclepias californica K. Stolte 1978-5-28 s.n. Riverside peninsular Range/Agua Tibia Mtns. Region, Along Hwy 79, at entrance to Dripping Springs Camp Comment
  UCR43756  Asclepias californica A. C. Sanders, B. Pitzer 1986-4-30 6488 Riverside San Jacinto Mtns, head of Bee Canyon along Bee Canyon Road, 1.7 mi. above mouth of canyon at the San Jacinto River Valley. 795 Comment
  RSA90127  Asclepias fascicularis E. K. Balls, P. C. Everett 1953-8-19 18538 Riverside Head of Palm Canyon, where stream crosses Hwy 74 on Palms to Pines Hwy. 1372 Comment
  SD121807  Asclepias subulata C. H. Muller 1952-5-21 9514 Riverside Outwash plain at mouth of Morongo Canyon Comment
  UCR12209  Asclepias subulata O. F. Clarke 1969-11-22 s.n. Riverside Sonoran (Colorado) Desert, 4.5 mi. east of North Palm Springs, Coachella Valley 290 Comment
  UCR96185  Asclepias subulata B. G. Pitzer 1996-11-9 2927 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  UCSB12490  Asclepias subulata Breedlove, Dennis 1961-9-11 Riverside Along roadside U.S. 60-70, 16.4 mi. E of Indio 441 Comment
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Mar 29 2014
  CAS-BOT-BC68762  Asplenium vespertinum Elmer I. Applegate 1892-4-23 s.n. Riverside Hills of East Riverside Comment
  POM161537  Aster alpigenus Ralph Hoffmann 1929-9-5 s.n. Riverside Tahquitz Valley, San Jacinto Mountains. Comment
  UCR34893  Aster ascendens L. B. Ziegler 1966-10-11 099 Riverside San Jacinto Mtns, Hemet Valley, near Kenworthy Ranger Station 1375 Comment
  SD211451  Astragalus aridus Carolyn Martus, Joseph Betzler, Caesara Brungraber, Lance Woolley 2008-4-15 1212 Riverside 30 miles west of Blythe near Palen Dry Lake. From I-10 exit Corn Springs Road and go north for about 10 miles. The population is common on the south, southwest side of Palen Dry Lake. Comment
  UC700951  Astragalus aridus Aven and Ruth Nelson 1939-3-30 3343 Riverside between Mecca nd Blythe on old road between Mecca nd Blythe on old road (hiway 60) Comment
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Feb 3 2011
  POM303047  Astragalus crotalariae P. A. Munz 1941-3-29 16591 Riverside Salton Wash north of Salton Sea. Comment
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Jan 22 2012
  RSA0014455  Astragalus didymocarpus Justin M. Wood, J. Miner 2010-4-29 1528 Riverside Coachella Valley: Bermuda Dunes. Near intersection of Avenue 38 and Varner Rd. 37 Comment
  CAS-BOT-BC182588  Astragalus didymocarpus var. dispermus John Thomas Howell 1928-3-11 3440 Riverside 6 miles se. of Garnet Station, Coachella Valley, Colorado Desert 152 Comment
  CLARK-A1045-708  Astragalus douglasii George K. Helmkamp 1977-5-28 Riverside San Jacinto Mountains Lake Fulmor 7.5'Q Comment
  LA35633  Astragalus douglasii var. douglasii Ronald A. Cross; April 1952 - May 1952 sn Riverside Hurkey Creek Camp Ground, California State Highway 74 Comment
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Sep 22 2013
  UC81306  Astragalus douglasii var. douglasii S. B. and W. F. Parish Apr. 1882 1407 Riverside Morongo Comment
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Jul 4 2007
  RSA658920  Astragalus douglasii var. parishii Bob Rogers 1984-5-5 32 Riverside Collected along a trail bordering the west side of Fuller Mill Creek heading upstream. Starting point was on the North side of Hwy 243, 11.6 miles from hwy 74/hwy 243 jctn. 1524 Comment
  UCR81998  Astragalus filipes Ed LaRue 1993-8-18 s.n. Riverside Murrieta: Greer Ranch development, north side of Clinton Keith Road near Interstate Hwy 15. Comment
  RSA525226  Astragalus gambelianus Steve Boyd, Laurel Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4604 -A Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 579 Comment
  UCR237114  Astragalus gambelianus Duncan S. Bell, Joy England 2010-5-17 1007 Riverside San Jacinto Mountains, Rouse Ridge, c. 3 air miles southeast of junction of Hwy 74 and forest service road 5S15 1045 Comment
  VVC2470  Astragalus insularis var. harwoodii Tim Thomas 2013-3-18 5930 Riverside Sonoran Desert, 12 miles WSW of Blythe; south of I-10. vic of powerline corridor. 145 Comment
  CAS-BOT-BC187172  Astragalus lentiginosus var. fremontii Annie M. Alexander; Louise Kellogg 1941-5-4 2112 Riverside Joshua Tree National Monument 1249 Comment
  UCR256947  Astragalus lentiginosus var. fremontii Duncan S. Bell 2012-4-5 3312 Riverside Sonoran (Colorado) Desert, Palen sand dunes on the southwest side of the Palen Mountains at the south end of Palen Valley and the northwestern part of Chuckwalla Valley; vicinity of the Desert Lily Sanctuary 160 Comment
  JOTR16676  Astragalus lentiginosus var. variabilis Baker, James K. & Baker, Ilisa T. 1966-6-26 s.n. Riverside Joshua Tree National Park. ALONG ROADSIDE TO STUBBE SPRING 1310 Comment
  CAS-BOT-BC178069  Astragalus nuttallianus Peter H. Raven 1958-5-5 12897 Riverside West of Split Rock Tank, Joshua Tree National Monument Comment
  UCR23854  Astragalus nuttallianus John C. Roos 1958-3-15 s.n. Riverside Sonoran (Colorado) Desert, 3 mi. SE of Desert Center, Chuckwalla Mtns. Comment
  SEINET7063054  Astragalus nuttallii A. G. Vestal 1963-5-20 s.n. Riverside Long Valley Road at Temecula and at the junction with Route 395 (115). UTM Zone 11, 485910mE, 3706825mN. (WGS84/NAD83). 308 Comment
  RSA0064476  Astragalus pachypus John F. Emmel 1995-7-16 1382 Riverside San Jacinto Mts.; Rouse Ridge road, 3.8 to 4.3 road miles SSE of Cranston Ranger Sation. 853 Comment
  JEPS54839  Astragalus palmeri Marjorie D. Clary 1931-4-4 6 Riverside Devils Canyon Santa Rosa Mts., , Devils Canyon (Coachella Valley) Comment
  SBBG3264  Astragalus palmeri H. and M. Dearing 1936-12-26 837 Riverside Palms to Pines Hwy 1219 Comment
  SEINET2060247 Image available Astragalus palmeri P. J. Leary 1975-4-10 1048 Riverside Near Skull Rock, Joshua Tree National Monument 1341 Comment
  RSA0025522  Astragalus palmeri John F. Emmel 1986-4-12 997 Riverside Little San Bernardino Mtns: upper Berdoo Canyon. Locality also includes Quarter S 1/2. Section 31, Township 3S, Range 9E. 1372 Comment
  CSUSB1296  Astragalus pomonensis Cassandra Peyton 1965-4-21 Riverside 1.5 miles west of La Sierra Ave. (Lake Matthews Dam) on Cajalco Road. 243 Comment
  HSC101369  Astragalus pomonensis John F. Green 2005-3-7 Riverside Peninsular Range: Wildomar, west of Grand Ave, off Sweet Nectar Rd. 415 Comment
  RSA108533  Astragalus pomonensis P. H. Raven, Sidney R. Snow 1956-6-30 9543 Riverside Deserty flats 1.7 miles west of Dripping Springs Guard Station, Temecula River. 365 Comment
  RSA653227  Astragalus pomonensis A. C. Sanders, T. B. Salvato 2000-5-25 23401 Riverside Menifee Valley; S of Newport Rd., N of Holland Rd. and E of Bradley Rd., 2 miles due east of Railroad Canyon Lake 439 Comment
  UCR111598  Astragalus pomonensis Mitch Provance 1998-4-8 1773 Riverside City of Riverside, Arroyo Tequesquite, NE side of proposed 'Andulka Park' just west of the corner of Chicago and Central Avs. 305 Comment
  UCR127359  Astragalus pomonensis A. C. Sanders, D. Malueg 2003-5-8 26566 Riverside Perris-Aguanga Basin region, Los Alamos Road at Warm Springs Creek crossing west of Hwy 79, northeast of the Hogbacks, north of Los Alamos Rd. and east of the creek 396 Comment
  RSA0003063  Astragalus pomonensis Marcus E. Jones 1882-4-24 3166 Riverside Temecula Comment
  UCR279555  Atrichoseris platyphylla A. C. Sanders, Jim Malusa 2017-3-29 43187 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, large canyon 2.8 km south of the confluence of Red Canyon and Salt Creek 460 Comment
  UCSB39114  Atriplex J. Jorgensen 1982-3-23 298 Riverside DESERT BEACH ALONG HWY 111 SALTON SEA -70 Comment
  SD143554  Atriplex canescens R. D. Goeden, D. W. Ricker 1978-11-16 Riverside Coachella Valley: Indio, Monroe St. 6 Comment
  SEINET3930592  Atriplex canescens R. L. Piemeisel 1914-9-25 4045 Riverside 4 mi. w. of Indio Rd. to Indian well.; 0 Comment
  UCR63944  Atriplex davidsonii D. E. Bramlet, A. Parikh 1990-6-14 2035 Riverside San Jacinto Valley, 6.5 km west of Hemet, c. 600 m SW of the intersection of Warren Ave and Florida Street, and 0-50 m east of the MWD 'San Diego Canal 457 Comment
  POM184641  Atriplex lentiformis L. C. Wheeler 1931-11-27 387 Riverside 3 miles SE of Salton Bench Mark. -76 Comment
  UCR279577  Atriplex polycarpa A. C. Sanders, Jim Malusa 2017-3-28 43136 Riverside Sonoran (Colorado) Desert, Northern edge of Chocolate Mountains, along Salt Creek at edge of Navy Aerial Gunnery Range, vicinity of Clemons Well site, between wash and old Kaiser RR 314 Comment
  UCR18901  Atriplex rosea John C. Roos 1965-8-4 s.n. Riverside San Bernardino Valley, Arlington area, Riverside Comment
  RSA702186  Atriplex semibaccata Scott D. White, Michael Honer 2004-3-11 9897 Riverside Corona area. Approximately 1/2 air mile E of I-15 and 1 air mile N of El Cerrito Rd. 290 Comment
  RSA492851  Atriplex semibaccata Bill Wagner 1988-3-7 s.n. Riverside Woodcrest area, ca. 6 miles SW of Riverside. NE corner of Hibiscus and Dauchy Streets. 479 Comment
  UCR35144  Atriplex serenana L. B. Ziegler 1976-8-20 551 Riverside San Jacinto Valley, near the city of San Jacinto. 473 Comment
  UCR199793  Atriplex serenana var. serenana Scott D. White, Justin M. Wood 2008-6-13 12105 Riverside Beaumont Badlands, San Timoteo Canyon, near El Casco Lake (private pond) east of the road 610 Comment
  RSA342555  Avena barbata R. F. Thorne, C. W. Tilforth 1980-5-28 54211 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  RSA385380  Avena barbata N. C. Cooper 1944-3-24 1010 Riverside Banning. 701 Comment
  RSA543786  Avena barbata Steve Boyd, Timothy S. Ross, Mike Hammitt 1991-5-2 6043 Riverside Vail Lake region, SW and W flanks of Billy Goat Mountain 3 miles N Highway 79, 1 mile W of Highway 371, N of Aguanga. 600 Comment
  RSA774514  Avena barbata Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4467 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 W116.64315 487 Comment
  UCR172142  Avena fatua A. C. Sanders 2006-5-11 32263 Riverside Warm Springs Valley, N edge of city of Lake Elsinore, 35 acre parcel south of the intersection of Collier Ave. and Riverside Dr., NE of Alberhill Crk., NW of Enterprise Way 389 Comment
  UC667326  Ayenia compacta Annie M. Alexander and Louise Kellogg 1941-5-26 2236 Riverside Monsen Canyon Eagle Nountains 822 Comment
  CAS-BOT-BC98783  Baccharis brachyphylla Carl B. Wolf 1932-10-11 4275 Riverside Morongo Wash, 3/10 mi. below the San Bernardino Co. line. 670 Comment
  UCR262332  Baccharis brachyphylla Duncan S. Bell 2013-9-29 6045 Riverside Colorado (Sonoran) Desert, Chuckwalla Mountains, south side of Corn Springs, Wash, c. 1.8 air mi southwest of Corn Springs 648 Comment
  POM153384  Baccharis douglasii Philip A. Munz, I. M. Johnston 1928-9-12 11264 Riverside Santa Ana River, Onatrio-to-Corona road. Comment
  UCR106918  Baccharis pilularis D. L. Banks, L. Raz 1996-11-5 1148 Riverside Agua Tibia Mountains, Pechanga Indian Reservation, south of San Gabriel Church; along a newly established firebreak along a NW-SE running ridgeline, near the water tank in section 34 421 Comment
  POM4663  Baccharis salicifolia F. L. Robinson, Crocker 1916-3-26 s.n. Riverside Santa Ana Mts, near Murrietta Comment
  RSA657170  Baccharis salicifolia Bob Rogers 1984-4-14 5 Riverside Collected in the San Jacinto river-bed on the North side of Hwy 74, 0.6 miles past Cranston ranger station going east from Hemet towards Mountain Center 610 Comment
  RSA93199  Baccharis salicifolia F. W. Peirson 1918-03 2231 Riverside Whitewater at head of Coachella Valley. Comment
  CLARK-A1528-1632  Baccharis sergiloides John C. Roos 1937-8-20 2500 Riverside San Jacinto Mountains Comment
  JOTR35422  Baccharis sergiloides La Doux, Tasha, M. Harding, B. Truesdell, D. Shade 2012-9-25 3098 Riverside Joshua Tree National Park. Cottonwood Mountains; Cottonwood Spring 914 Comment
  RSA0035717  Baccharis sergiloides A. C. Sanders, T. B. Salvato, Ana Hernandez, Karyn Drennen, Angela Collada 2013-10-2 40954 Riverside Wilson Valley Preserve, 0.35 air mi. south of Wilson Valley Rd. and 0.8 mi. east of Sage Rd., 1.4 mi. east (93 ) of Round Top Mountain 739 Comment
  SD218272  Baccharis sergiloides Mark A. Elvin 2004-4-9 3256 Riverside Little San Bernardino Mountains; UC Burn's Pinyon Ridge Reserve, ca. 1.5 miles east of Pioneertown, east of Burn's House. 1264 Comment
  RSA328945  Bacopa monnieri Brad Ballen 1982-12-27 588487 Riverside growing at the edge of a lake at desert Island Country Club, 71-777 Frank Sinatra Drive Comment
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Dec 28 2011
  POM14092  Bahiopsis parishii Philip A. Munz, D. D. Keck 1922-4-13 4954 Riverside Eagle Mtns. Colorado Desert. 244 Comment
  POM159821  Bahiopsis parishii E. C. Jaeger 1926-3-24 s.n. Riverside Eagle Mountains. Comment
  UCD129501  Baileya pauciradiata Richard Bates 1949-4-26 s.n. Riverside Cathedral City, southwest of Palm Springs. Comment
  UCR116835  Baileya pauciradiata Helen Kennedy, Fred R. Ganders 1980-4-15 4065 Riverside Sonoran (Colorado) Desert, along [Box Canyon] road between Mecca and Hwy. 10 300 Comment
  UCR90166  Baileya pauciradiata R. W. Scora 1966-4-1 3012 Riverside Sonoran (Colorado) Desert, Coachella Valley, 3-4 km east of Thousand Palms on Ramon Road; near Hidden Spring Oasis 60 Comment
  SD5792  Baileya pleniradiata Frances Keys 1929-6-28 Riverside Palm Springs; Desert Queen Ranch. Comment
  POM253442  Bebbia juncea Thos. Craig, Frances Craig 1939-11 s.n. Riverside Aguanga. Comment
  UCR148308  Bebbia juncea John F. Green 2005-1-14 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, Coachella Canal right-of-way, between siphons 22 and 23, south of Salt Creek 23 Comment
  CAS-BOT-BC100136  Bebbia juncea var. aspera J. Von Loh 1978-1-23 3311 Riverside Palo Verde Mesa, 12 mi. W. of Blythe 121 Comment
  JOTR38690  Bebbia juncea var. aspera Hodges, Stephen R. 2017-2-7 706 Riverside Joshua Tree National Park. Little San Bernardino Mountains, West Deception Canyon, near the mouth of the canyon just north of the park boundary Comment
  RSA778424  Bebbia juncea var. aspera Stephanie Rockwood, Christi Gabriel 2011-10-12 089 Riverside Sheephole Valley Wilderness, parallel Cadiz Valley. Unnamed road off highway 62. 242 Comment
  SD181715  Bebbia juncea var. aspera Scott D. White 2000-10-24 8141 Riverside Gibbel Flat in the Santa Rosa Hills. 609 Comment
  UCR244407  Bebbia juncea var. aspera Jim Andre 2012-4-16 20900 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park; along Cottonwood Springs Rd., 1.0 mi. north of south entrance to J.T.N.P. 584 Comment
  CLARK-A1656-758  Beloperone californica Theo Glenn 1982-1-22 Riverside Palm Springs 149 Comment
  CLARK-A1528-1167  Berberis dictyota John C. Roos 1952-2-29 5379 Riverside Comment
  UCR43  Berberis dictyota Eugene Cardiff 1950-3-15 s.n. Riverside San Bernardino Valley Region, Jurupa Hills [=Jurupa Mtns.] 518 Comment
  CLARK-A1528-5634  Berberis nevinii John C. Roos 1948-2-21 3772 Riverside San Timoteo Canyon Comment
  UCR94069  Bernardia myricifolia Scott D. White, Duayne Haselfeld 1996-7-2 4257 Riverside San Jacinto/Santa Rosa Mtns, Pinyon Flat area, north of Hwy 74, c. 10 road mi east of junction with Hwy 371, west-facing slope of Sugarloaf Mountain and adjacent valley 1402 Comment
  RSA634212  Boechera californica R. F. Thorne, C. W. Tilforth, J. P. Simon 1969-6-24 38138 Riverside San Jacinto Mountains: San Bernardino National Forest. Hilltop above Lake Fulmor. 1676 Comment
  UC472853  Boechera perennans Mary Fiske Spencer 1924-6-17 Riverside Idyllwild San Jacinto Mts. 1828 Comment
  UC494751  Boechera perennans Philip A. Munz and C. L. Hitchcock 1932-4-9 12229 Riverside White Tanks, e Riverside White Tanks Comment
  JOTR30049  Boerhavia coccinea La Doux, Tasha 2006-10-24 1655 Riverside Joshua Tree National Park. Twentynine Palms, park headquarters, nursery compound Comment
  SD1480  Boerhavia coccinea Fidella G. Woodcock 1928-4-27 Riverside Camp Grounds, Idyllwild, San Jacinto Mountains Comment
  UCR211474  Boerhavia intermedia Jim Andre, T. La Doux 2008-9-13 10279 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park, at base of Bell Mountain (NW end) at 'Pinto Y' maintenance service area 1104 Comment
  JOTR32598  Boerhavia triquetra var. intermedia La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-10-13 2665 Riverside Joshua Tree National Park. eastern edge of Cottonwood Mountains, near mouth of Cottonwood Canyon; east of Rte. 11, aprpox. 2.5 miles north of park boundary 711 Comment
  POM246652  Boerhavia wrightii E. C. Jaeger 1938-10-30 s.n. Riverside Granite Wells Wash, Chuckawalla Mts, Colorado Desert. 366 Comment
  UC2026380  Boerhavia wrightii Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10051 C Riverside COLORADO DESERT, CHUCKWALLA MOUNTAINS: Northwest base of the range, south of Eagle Mine Road exit on Interstate 10. Comment
  RSA0094451  Bolboschoenus maritimus subsp. paludosus Duncan S. Bell 2015-8-12 8594 Riverside Orocopia Mountains; southwestern section of the range, collecting at a spring in the southern section of the Dos Palmas area. Temperature at around 120 degrees. -41 Comment
  SACT000426  Bouteloua aristidoides Marcus Jones 1929-9-16 Riverside Comment
  RSA773657  Bouteloua barbata Duncan S. Bell, J. D. England 2010-10-5 1976 Riverside San Bernardino National Forest: Garner Valley, approximately 2.6 air miles southeast of junction of forest service road 6S04 and forest service road 6S13. 1387 Comment
  UCR100325  Bouteloua barbata var. barbata George K. Helmkamp 1997-11-1 2512 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  SEINET3246025  Bowlesia incana A. C. Sanders, T. B. Salvado, Matthew Malle, Jonas Winbolt. Katie A. Kurtz 2010-1 37696 Riverside Peninsular Range; foothills of Gavilan Hills: Temescal Canyon at Alberhill, c. 1/2 mi. west of Lake St. on north side of I-15, near Temescal Canyon Rd. undercrossing, at north edge of Concordia Ranch Rd. 363 Comment
  RSA336186  Brandegea bigelovii R. F. Thorne 1978-4-23 52038 Riverside Just E of Palm Desert. Comment
  SEINET3082942 Image available Brandegea bigelovii Barbara Gayle Pitzer 1998-1-24 3390 Riverside Sonoran (Colorado) Desert; N foot of Chuckwalla Mtns, Eagle Mt Rd, south side of Hwy I-10, 0.8 mi south of Hwy at powerline rd, & wash directly south of road 500 Comment
  SEINET3860054  Brandegea bigelovii T. B. Salvato 2010-4-20 4056 Riverside Sonoran (Colorado) Desert: alluvial slope between the McCoy Mountains and McCoy Wash, ca 14 mi. northwest of Blythe.; 0 183 Comment
  UC354498  Brandegea bigelovii Edmund C. Jaeger 1925-12-19 Riverside Fish Traps near Mecca 3 Comment
  UCD107471  Brandegea bigelovii Geoffrey Levin 1976-10-17 1169 Riverside Box Canyon, about 11 mi. east of Mecca. Mecca Hills Mt. Range. Comment
  UCR275352  Brassica rapa T. B. Salvato, Melissa Clemons 2005-6-9 1495 Riverside Peninsular Range, Gavilan Hills, E/W trending side canyon feeding into Walker Canyon, c. 0.3 mile northeast of Hwy 15 457 Comment
  RSA680345  Brassica tournefortii Scott D. White 2001-3-27 8177 Riverside Moreno Valley area. About 1 air mile East-Northeast of the jtn State Rt. 60 w/ theodore St. Adjacent to County Landfill. 610 Comment
  RSA770682  Brassica tournefortii Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4684 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 600 Comment
  RSA595705  Brickellia R. E. Riefner 1996-8-27 96 -153 Riverside Lee Lake, W side of Temescal Wash near Indian Truck Rd. & I-15. Comment
  RSA93715  Brickellia arguta F. W. Peirson 1919-4-13 1214 Riverside Along the Tahquitz creek, East of Palm Springs, Riverside. Comment
  RSA13779  Brickellia californica C. W. Tilforth, John Dourley 1970-10-16 316 Riverside Along and above intermittent stream bed, road to Santa Rosa Mtn. Comment
  SD132266  Brickellia californica Scott White 1990-10-2 Riverside Vail Lake Area: Highway 79, immediately west of Dripping Springs Guard Station 490 Comment
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Dec 21 2010
  SD137905  Brickellia californica Darin L. Banks, Steve Boyd 1995-10-17 761 Riverside Northwest Palomar Mountains; Agua Tibia Mountains; along lower Arroyo Seco, south of the dripping Springs Campground. 515 Comment
  JEPS88669  Brickellia desertorum Annie M. Alexander and Louise Kellogg 1938-12-11 267 Riverside Lost Palm Canyon 685 Comment
  RSA700108  Brickellia desertorum Virginia Moran 2003-9-1 s.n. Riverside Wilson Valley Mitigation Bank, managed by the Center for Natural Lands Management: Section 33 of two that comprise mitigation bank. (Section 27 & 33). Accessed from Wilson Valley Road. Comment
  SD146037  Brickellia desertorum A. C. Sanders, Pam MacKay, Tim Thomas, et al. 1996-11-23 19650 Riverside San Bernardino Mountains; Whitewater Canyon, just below the fish hatchery. 648 Comment
  SEINET10797623  Brickellia microphylla var. watsonii A. K. Evans 1976-4-13 Evans 5214 Riverside Desert canyons of Santa Rosa Mountains. Comment
  UCD129645  Brickellia oblongifolia var. linifolia J. C. Roos 1946-8-27 2917 Riverside Santa Rosa Mountain. 1371 Comment
  RSA580943  Brodiaea filifolia David E. Bramlet 1995-5-24 2427 Riverside San Jacinto wildlife area, Lovell Unit, approximately 1.83 km NE of Lakeview. The population is located 518 m east of Davis Road and 61-512 m south of the existing access road. The site is 168 m N of the San Jacinto River channel. Comment
  SD226182  Brodiaea santarosae Tom Chester, Wayne Armstrong, Kay Madore 2006-6-15 925 Riverside Santa Rosa Plateau Ecological Reserve: Waterline Road, 0.4 km east-southeast of the northernmost high point of the Mesa de Burro 563 Comment
  UCR217655  Brodiaea santarosae Karyn L. Drennen, Ana Hernandez 2010-5-12 014 Riverside Santa Ana Mountains foothills, Santa Rosa Plateau, south edge of Mesa de Colorado, 760 m east-southeast of Via Volcano/Avocado Mesa Road intersection, 250 m east of Via Volcano, 50 m north of dirt road 627 Comment
  CAS-BOT-BC486547  Brodiaea terrestris subsp. kernensis H. M. Hall 1901-6-1 2093 Riverside Meadows in the vicinity of Strawberry Valley, San Jacinto Mountains 1402 Comment
  SD185078  Bromus arizonicus A. C. Sanders, K. Rose and D. Woodard 1995-3-22 16220 Riverside San Gorgonio Pass/San Jacinto Mountains; on and near a rocky spur at the north foot of the mountains. 399 Comment
  RSA604754  Bromus berteroanus A. C. Sanders 1995-4-13 16509 Riverside San Bernardino Mountains/ Colorado Desert: Devil's Garden, E end of mountains, 2.1 miles W of Highway 62 on Pierson Ave. & dirt extension, 1.7 mile above Sierra Blv., (33 deg 58'N, 116 deg 37.5'W) 701 Comment
  RSA781243  Bromus berteroanus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-3-31 37668 Riverside Temescal Canyon at Alberhill, c. 1/2 mi. west of Lake St. on N side of I-15, N of Temescal Canyon Rd. and NW of Concordia Ranch Rd., NW of horse racing track 375 Comment
  SBBG95098  Bromus carinatus A. C. Sanders 1989-4-30 9068 Riverside City of Riverside at 422 Campus View Drive Comment
  UCR125474  Bromus carinatus A. C. Sanders 2003-4-6 25945 Riverside San Bernardino/Santa Ana River Valley Region, Riverside, weed in yard at 422 Campus View Dr. 341 Comment
  RSA586336  Bromus diandrus D. L. Banks, Steve Boyd 1995-5-3 201 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  RSA0064521  Bromus diandrus Starr Streight 1982-4-17 25 Riverside Cajalco Road, 0.7 miles east of I-15; south of Corona. Comment
  POM363860  Bromus grandis N. C. Cooper 1944-5-20 1311 Riverside Palms to Pines Highway, San Jacinto Mountains. 915 Comment
  UCR121333  Bromus hordeaceus A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-22 24986 Riverside The Badlands, marble outcrop on ridge about 1/2 mile east of Mt. Eden, above Laborde Canyon, SW of Beaumont 670 Comment
  UCR125225  Bromus hordeaceus Mitch Provance, Twoc Tran 1998-5-30 564 Riverside Jurupa Mountains, N end of 'Wilder's Canyon' (E fork of Pyrite Canyon), c. 0.25 miles SE of peak 1538. 351 Comment
  UCR2232  Bromus hordeaceus F. M. Reed 1906-5-31 970 Riverside Riverside, on Sedgwick Street in a little arroyo 274 Comment
  RSA192235  Bromus hordeaceus E. W. Lathrop 1966-5-15 6319 Riverside 3 miles SE of Murrieta on the De Luz Road. Comment
  UCR110939  Bromus marginatus George K. Helmkamp 1998-6-27 4118 Riverside Santa Rosa Mtns., 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), below Mountain Home Spring 1799 Comment
  SEINET3923061  Bromus rigidus R. L. Piemeisel 1913-5-4 3586 Riverside Crestmore field.; 0 Comment
  CAS-BOT-BC161814  Bromus rubens V. W. Steinmann; D. B. Steinmann 1996-3-16 811 Riverside Northeast foothills of the San Jacinot Mountains, lower portion of Chino Canyon alluvial plain, 1 km south of Highway 111 at a point ca. 1.5 km northwest of the Tramway-San Rafael intersection. 300 Comment
  RSA554288  Bromus rubens Scott D. White 1992-2-25 92 -3 Riverside Santa Rosa Plateau, between Sandia and De Luz Creeks, ca. 1.5 (air) mi. W of Sandia Canyon; 7 miles SW of Murrieta. 305 Comment
  RSA716814  Bromus sterilis T. B. Salvato, Kent Beaman 2005-5-16 874 Riverside San Jacinto River E of Valle Vista, just downstream from the Forest Service boundary and N of CA Hwy 74. 549 Comment
  RSA773976  Bromus tectorum A. C. Sanders 2011-2-24 38736 Riverside Jurupa Hills, eastern lobe of Rattlesnake Mountain, west of Riverside Cement Plant 407 Comment
  UCR91923  Bromus tectorum A. C. Sanders, O. F. Clarke, et al. 1996-4-13 18028 Riverside Riverside: Box Springs Mtns, crest of range in vicinity of park headquarters, head of Two Trees Canyon 700 Comment
  RSA0020666  Bromus tectorum N. C. Cooper 1944-5-20 1232 Riverside Palms to Pines Highway [Hwy 74], San Jacinto Mountains. 1280 Comment
  UC1023393  Bromus trinii John and Lucille Roos 1953-3-21 5909 Riverside s of Palm Springs (mouth of Andreas Canyon); Andreas Canyon 274 Comment
  UCR59350  Buddleja officinalis David A. Young 1969-3-21 437 Riverside 3 mi. west of Elsinore on dirt road north of Highway 71, 500 yards off the highway. 244 Comment
  SBBG133350  Caesalpinia gilliesii S. D. White, A. Carey 2004-7-2 10577 Riverside San Jacinto Mtn foothills, Soboba Indian Reservation, Poppet Crk Cyn 549 Comment
  JOTR31771  Caesalpinia virgata Andre, Jim, Tasha La Doux 2009-3-10 11238 Riverside Joshua Tree National Park. South end of the Cottonwood Mountains, near Pinkham Wash just north of aquaduct just inside park boundary; approx. 7mi west of south entrance 541 Comment
  POM14395  Caesalpinia virgata P. A. Munz, D. D. Keck 1922-4-9 4753 Riverside Shavers Well, near Mecca. 76 Comment
  UCR39187  Caesalpinia virgata David J. Keil 1976-12-12 11913 Riverside Sonoran (Colorado) Desert, c. 5 mi. east of Indio along Interstate Hwy 10. Comment
  RSA524234  Calandrinia ciliata Steve Boyd, Timothy S. Ross, Laurel Arnseth, Jaime Bonilla 1990-4-2 4042 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  RSA614701  Calandrinia ciliata George K. Helmkamp, E. A. Helmkamp 1997-3-5 1337 Riverside Cabazon; 0.5 mi N of I-10 on Millard Rd. 564 Comment
  UCR138643  Calandrinia ciliata D. L. Banks 1997-2-17 1272 Riverside Agua Tibia Mtns., NW Palomar Mountains: burned areas in the Temecula community of Redhawk, south of the intersection of Redhawk Parkway and Tehachapi Pass Road 396 Comment
  UCR225584  Calandrinia ciliata A. C. Sanders 2011-3-29 38864 Riverside Peninsular Range; Perris-Aguanga Basin Region, hills between Sun City and Perris, low hilltop along powerline corridor c. 1/2 mile west of Goetz Rd., west of Alabaster Loop, above the San Jacinto River upstream of Railroad Canyon Lake 451 Comment
  RSA0108365  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, Walter Wisura, Earl W. Lathrop, Sara Meury 1985-5-18 60638 Riverside Santa Rosa Plateau: Along seasonal stream in Cole Canyon, near entrance to Nature Conservancy Reserve. 530 Comment
  RSA286797  Callitriche heterophylla subsp. bolanderi R. F. Thorne 1974-5-23 44660 Riverside Santa Rosa Plateau, Rancho California; near junction of Tenaja Road and road to ranch headquarters. 610 Comment
  LA31714  Calocedrus decurrens Carl Epling; 1931-10-3 sn Riverside San Jacinto Mountains, Strawberry Valley 1523 Comment
  CSUSB393  Calochortus albus Bill Marks 1971-5-16 Riverside Santa Ana Mountains Found in Santa Ana Mountains, Rancho California area near De Luz. Growing on the roadside. Comment
  CAS-BOT-BC483416  Calochortus invenustus H. M. Hall 1901-7-1 2475 Riverside Tahquitz Valley, San Jacinto Mountains 2712 Comment
  POM307261  Calochortus palmeri var. munzii Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2125 Riverside Santa Rosa Mountains. Comment
  UCR252522  Calochortus plummerae J. Mendoza 2011-5-2 s.n. Riverside Riverside, Islander Park off East Big Springs Road above Mt. Vernon Ave. 350 Comment
  RSA501021  Calochortus splendens Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-1 3140 Riverside Vail Lake area, ridge along N edge Oak Mountain, 1.5-2.0 miles W of the dam. 518 Comment
  UCR48395  Calycadenia tenella Steve Boyd 1986-5-1 1794 Riverside Perris-Aguanga Basin region, southwestern Perris Basin, hill west of Skunk Hollow, Skunk Hollow vernal pool 488 Comment
  POM351412  Calycoseris parryi Ora M. Clark 1929-2-23 1567 Riverside North Whitewater. Comment
  UCR279416  Calycoseris wrightii A. C. Sanders, Jim Malusa 2017-3-25 42996 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Arroyo Seco, 3.5-4 km south of Augustine Pass, 100-200 m S of Bradshaw Trail, c. 1.5 km N of Imperial Co. line 652 Comment
  SBBG28082  Calyptridium monandrum D. Myrick 1964-4-30 818 Riverside Hwy 74, 5 mi W of Palm Desert 213 Comment
  UC63436  Calyptridium monandrum H. M. Hall 1904-5-16 4944 Riverside vicinity of Riverside (Fairmount Park); Fairmount Park 243 Comment
  RSA586723  Calystegia macrostegia subsp. arida 1995-5-17 0445 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mtn., E of the Dripping Springs Alcove area W of the Dripping Springs Trail, along the W fork of upper Arroyo Seco. 598 Comment
  RSA161221  Calystegia macrostegia subsp. tenuifolia P. H. Raven 1959-4-23 14024 Riverside 5.1 miles west of Dripping Springs. Comment
  UCR273979  Calystegia sepium subsp. binghamiae Mitch Provance 2013-5-29 513- 13 Riverside Santa Ana River Valley, Riverside, Fairmount Park, W side of Lake Evans, W side of Dexter Drive, just SW of the American Legion. 241 Comment
  RSA770637  Camissonia Robert F. Thorne, M. Z. Thorne 1973-3-30 42684 Riverside Morongo Valley Canyon: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, Mission Creek. 488 Comment
  CSUSB157  Camissonia bistorta John Milbauer 1976-5-12 Riverside Pigeon Pass Road. Comment
  RSA716401  Camissonia bistorta Scott D. White, Angelia Carey 2004-4-5 10010 Riverside San Jacinto Mtn. Foothills: North of Valle Vista. Indian Creek Watershed. 518 Comment
  UCR50654  Camissonia brevipes subsp. brevipes B. A. Prigge 1988-2-21 7837 Riverside Sonoran (Colorado) Desert, Orocopia Mtns. 2 mi west of Clemens Well 229 Comment
  RSA144811  Camissonia californica E. G. Linsley, J. W. MacSwain 1960-3-1 60 -2 Riverside Colorado Desert, Palm Springs, Tamarisk Avenue Comment
  RSA466169  Camissonia californica Christopher Davidson 1973-4-1 1788 Riverside Agua Tibia Mountains. Highway 71/79 approximately 7 miles from junction of US 395 South. 412 Comment
  RSA6087  Camissonia californica Carl B. Wolf 1932-5-25 3670 Riverside San Jacinto Mountains. 1/2 mile below Fish Hatchery, lower edge of upper Sonoran zone, Snow Creek, north base of mountains. 549 Comment
  CLARK-A1528-3322  Camissonia cardiophylla John C. Roos 1946-12-7 3181 Riverside Pushawalla Wash Comment
  RSA454741  Camissonia cardiophylla M. B. Dunkle 1935-3-30 4423 Riverside Pinto Basin. Colo. Desert. Comment
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Dec 12 2011
  RSA793460  Camissonia cardiophylla Duncan S. Bell, John Anderson, Keir Morse 2012-11-11 4374 Riverside Mecca Hills: upper branch of Hidden Spring Canyon, approximately 0.6 air mile southeast of Hidden Spring and 0.6 air mile south of The Grotto. 250 Comment
  UCR75047  Camissonia chamaenerioides A. C. Sanders, E. J. Lawlor 1992-4-4 12100 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  SEINET1004373  Camissonia claviformis Natham Moorhatch 2005-1 Riverside Western Sonoran (Colorado) Desert: Coachella Valley, E. edge of Santa Rosa Mtns., La Quinta, W of Washington St., between Ave. 48 and Lake La Quinta Dr., 4 acre parcel 18 Comment
  UCR148482  Camissonia claviformis John F. Green, Chet McGaugh 2005-1-19 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, 1.5 mile transect along Coachella Canal right-of-way, between siphons 25 and 26, NE of Hunters Spring, near S base of Orocopia Mtns. 23 Comment
  UCR256702  Camissonia claviformis Duncan S. Bell 2012-3-18 3216 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
  UCR50879  Camissonia claviformis A. C. Sanders 1988-5-11 7800 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal, east of the gasline road from Niland 549 Comment
  RSA286430  Camissonia claviformis subsp. aurantiaca Mary H. O Brien 1976-4-14 76- 4 -14-4 Riverside 5 meters east of dirt road, 0.6 mi. no. of Amboy Rod. and 3.6 mi. east of Adobe Road in Twentynine Palms. 595 Comment
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Mar 29 2014
  RSA449183  Camissonia claviformis subsp. aurantiaca Anstruther Davidson 1893-4-10 s.n. Riverside Palm Springs. Comment
  RSA449192  Camissonia claviformis subsp. aurantiaca E. S. Spalding 1926-2-13 s.n. Riverside Colorado Desert. Calif. Painted Canon. Comment
  RSA171392  Camissonia confusa J. Olmstead 1962-5-3 3483 Riverside Along road on north side of Hemet Lake; San Jacinto Mts. 1280 Comment
  POM229709  Camissonia pallida subsp. pallida P. A. Munz 1957-3-15 14938 Riverside Whitewater Creek, 3 mi. north of highway to Banning [Hwy 10]. Comment
  RSA796095  Camissonia refracta Duncan S. Bell 2009-4-20 307 Riverside Arica Mountains: southeast of range, approximately 7.5 air miles south of Rice. 244 Comment
  IRVC26247  Camissonia strigulosa A. C. Sanders, D. Malueg 2003-5-8 26561 Riverside San Jacinto Riverbottom, north of San Jacinto and SE of State St. San Jacinto Valley 465 Comment
  UC454559  Camissonia strigulosa I. J. Condit 1910-6-24 Riverside San Jacinto Mts. 914 Comment
  UCR87658  Camissonia strigulosa A. C. Sanders 1994-5-29 14571 Riverside San Bernardino Mtns, East Branch Millard Canyon, along Forest Service Road 4S45 1200 Comment
  OBI2685  Camissoniopsis bistorta Dieter H. Wilken 1965-4-14 167 Riverside E end of Domengoni Valley, SE of Winchester 427 Comment
  SBBG51035  Camissoniopsis hirtella N. R. Zabriskie, W. Zabriskie 1973-4-25 646 Riverside Deep Cyn drainage, E side Hwy 74, opposite Black Hill 914 Comment
  UC20636  Camissoniopsis ignota unknown 1861-2-1 151 Riverside Temescal Mountains Comment
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Jul 4 2010
  UCR176586  Carex alma N. M. Fellows, A. C. Sanders 1985-5-7 168 B Riverside San Jacinto Mountains, Oasis de los Osos Preserve, off Snow Creek Canyon at the N foot of the San Jacinto Mountains, 1 mi west of Snow Creek Village 488 Comment
  SEINET7556721 Image available Carex densa A. C. Sanders 2004-4-20 27567 Riverside Santa Ana Mtns: Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line. Fallbrook 7.5' Q. 640 Comment
  CAS-BOT-BC21917  Carex heteroneura A. Davidson 189 s.n. Riverside San Jacinta Mountains. Comment
  RSA544377  Carex praegracilis Steve Boyd, Timothy S. Ross 1991-6-14 3692 Riverside Warm Springs Creek at NE end of Hogbacks ridge from Alamos Road S to confluence with Adobe Springs tributary, 2-3 miles NW of Murrieta Hot Spings. Comment
  UCR213901  Carex praegracilis Scott D. White, Justin M. Wood 2009-5-22 12901 Riverside San Jacinto Mountains, Quinn Flat Meadow 1396 Comment
  UC830088  Carex sartwelliana P. A. Munz 1922-7-6 6026 Riverside between Tahquitz Creek and Hidden Lake; San Jacinto Mts. 2286 Comment
  UCR35297  Carex senta L. B. Ziegler 1970-5-20 406 Riverside San Jacinto Mtns, North Fork of the San Jacinto River (Dark Canyon). 1677 Comment
  RSA0105942  Castela emoryi Alan Romspert 2000-4-15 s.n. Riverside East of Dupont road, Chuckwalla Mountains. Comment
  CLARK-A1528-4171  Castilleja affinis John C. Roos 1966-4-5 Riverside Winchester Comment
  HSC46606  Castilleja applegatei subsp. martinii Christopher Davidson 1977-5-18 5628 Riverside Cleveland National Forest, Bear Springs 1220 Comment
  SEINET3289840 Image available Castilleja applegatei subsp. martinii M. W. Denslow, Firoozeh Navid-Ara; Valerie Soza 2003-7-15 1445 Riverside Peninsular Ranges; San Jacinto Mountains region: Northeast side of Tahquitz Peak, on trail to Saddle Junction. 2637 Comment
  SEINET238798 Image available Castilleja exserta Mitch Provance 2000-5-5 2013 Riverside Box Spring Mtns. canyon ca. 0.5 mi. NE of peak 2553 and ca. 0.5 mi. SW of the old landfill off Pigeon Pass Rd. 427 Comment
  UC886555  Castilleja exserta P. A. Munz 1922-4-28 5031 Riverside Temescal Canyon Comment
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Apr 3 2011
  UCR162414  Castilleja exserta S. J. Myers, Chet McGaugh 2003-4-7 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1098 Comment
  RSA741067  Castilleja exserta subsp. exserta Scott D. White, Justin M. Wood 2008-6-5 12075 Riverside San Jacinto Mountains: Garner Valley: Hwy 74 at Thomas Mountain Rd. - SW corner of junction. 1326 Comment
  RSA771735  Castilleja foliolosa Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4779 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR35230  Castilleja minor subsp. spiralis L. B. Ziegler 1967-8-29 215 Riverside San Jacinto Mtns, Meadow in Hemet Valley 1418 Comment
  CHSC8112  Castilleja plagiotoma Edward L. Smith 1958-3-6 349 Riverside Located in Coldwater Canyon, Glen Ivy. On Temescal Canyon road. Santa Ana Mt. range. 762 Comment
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Mar 7 2007
  UCR114745  Catalpa bignonioides A. C. Sanders, K. C. Rose 1999-6-18 22800 Riverside Skinner/Domenigoni area, French Valley, E side of Washington Ave., 1/2 mile south of Rawson Rd. 439 Comment
  POM99007  Caulanthus cooperi E. C. Jaeger 1926-4-24 s.n. Riverside White Tanks, Pinto Mts. 1128 Comment
  CAS-BOT-BC41018  Caulanthus flavescens K. Watkins; L. Erickson 1937-4-10 s.n. Riverside Palms to Pines highway near road to Shumay. Comment
  UCR165194  Caulanthus heterophyllus S. J. Myers 2001-4-6 s.n. Riverside San Jacinto Mtns., Bautista Canyon 976 Comment
  POM19808  Ceanothus cordulatus Mary F. Spencer 1923-6-27 2188 Riverside Idyllwild, San Jacinto Mt. 1646 Comment
  RSA180280  Ceanothus crassifolius E. W. Lathrop 1965-4-4 5640 Riverside 8 miles west of Murrieta-Tenaja Range. Comment
  UC718434  Ceanothus crassifolius P. C. Everett 1935-6-17 7151 Riverside 2 mi above Glen Ivy Resort (Coldwater Canyon Trail to Santiago Pk.); Santa Ana Mts. Comment
  UCR113593  Ceanothus crassifolius A. C. Sanders 1998-1-15 21629 Riverside Lake Skinner area, Black Mtn., along road up north side 884 Comment
  UCR155317  Ceanothus crassifolius A. C. Sanders, Mike Misenhelter 2005-3-23 29254 Riverside Santa Ana Mtns., Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  CAS-BOT-BC49185  Ceanothus cuneatus H. E. McMinn 1925-7-1 1490 Riverside Lower control to Idyllwild - San Jacinto Mtns. Comment
  UCR92455  Ceanothus cuneatus A. C. Sanders, S. Hawkins 1996-4-24 18075 Riverside San Bernardino Mtns, Morongo Indian Reservation, along dirt road in Hathaway Canyon, near Burro Flats 1159 Comment
  SEINET13945817 Image available Ceanothus cuneatus S. Lambert 1981-1 1937 Riverside San Bernadino Natl. Forest, 14.45 mi. E of Hemet, SW slope 1219 Comment
  CHSC1503  Ceanothus cyaneus E. Thomas 1940-3-10 Riverside Foothills above Sage. Comment
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Jan 7 2020
  RSA336411  Ceanothus greggii var. perplexans Robert F. Thorne, R. Whittaker, A. Shmida 1978-4-23 52083 Riverside Pinyon Flats: along Hwy 74, Santa Rosa Mountains. Comment
  POM282968  Ceanothus leucodermis E. W. Lathrop 1966-3-20 6072 Riverside Summit Temecula. Comment
  RSA262096  Ceanothus leucodermis E. W. Lathrop 1969-5-9 7029 Riverside Main Divide Truck. Trail between El Carriso and Santiago Peak, Cleveland Nat'l Forest. 1220 Comment
  SEINET2078718  Ceanothus leucodermis G. Rink 1999-5-22 Riverside San Jacinto Mountains, Highway. 243 Comment
  UC79962  Ceanothus leucodermis C. F. B. 1903-4-4 4144 Riverside Elsinore Comment
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Feb 2 2013
  UCR91609  Ceanothus leucodermis Steve Boyd, D. L. Banks 1995-3-30 8409 Riverside Agua Tibia Mountains, Palomar Range, Agua Tibia Wilderness Area; N flank of Agua Tibia Mtn, at W edge of the Dripping Springs alcove in tributary of Kolb Creek just east of old Woodchuck Truck Trail. 701 Comment
  UCSB7071  Ceanothus leucodermis Lloyd, Robert 1960-3-23 Riverside 2 miles up Snow Canyon Road from State Rd 111 609 Comment
  RSA0028382  Ceanothus leucodermis N. Cooper 1944-6-17 1444 Riverside San Jacinto Mts. Pine Cove. 1524 Comment
  RSA606752  Ceanothus ophiochilus Jon E. Keeley 1996-5-13 27414 Riverside In on N side of Agua Tibia Range, 2-3 km S of Agua Tibia Wilderness boundary gate on trail extending ca. 100 m S of enclosed reservoir on ridge SE of Woodchuck Resort at end of Woodchuck Rd., S of Hwy 79. 1000 Comment
  SD131176  Ceanothus ophiochilus Steve Boyd, Tim Ross, Laurel Arnseth 1989-3-31 3097 Riverside Vail Lake area, 1 mile west of lake. Restricted to series of north facing slopes 609 Comment
  POM310178  Ceanothus spinosus Hulda Crooks 1946-3-2 s.n. Riverside Beaumont-E. of Town. 701 Comment
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Feb 17 2013
  SD122408  Ceanothus tomentosus Duffie Clemons, Jim Dice, Glenn Keator 1988-2-18 1941 Riverside South bank of Santa Margarita River, Santa Margarita Ecological Preserve, west of Temecula. Comment
  RSA0050341  Ceanothus tomentosus F. W. Peirson 1921-3-19 2364 Riverside 4 miles west of Beaumont on the Redlands Road. 762 Comment
  RSA755430  Celtis australis O. F. Clarke 2003-10-6 s.n. Riverside Riverside, UCR campus 366 Comment
  CAS-BOT-BC284480  Centaurea solstitialis Jerry Miller 1993-10-14 s.n. Riverside March Air Force Base, Moreno Valley near Hwy 215 Comment
  RSA561524  Centaurea solstitialis Steve Boyd 1992-9-9 7672 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Upper San Mateo Canyon, from the junction of Tenaja Road (7S01) and Los Almos Road (7S04) and the confluence of Los Almos Creek., Up the San Mateo Trail north to Potrero de la Cienega. 396 Comment
  UCR93833  Centaurium venustum G. R. Ballmer, K. T. Stockwell 1995-6-8 s.n. Riverside Peninsular Range, Warm Springs Creek, Budweiser Ranch, 0.25-1 mi upstream of Los Alamos Road crossing 457 Comment
  UCR126372  Cerastium glomeratum A. C. Sanders, W. W. Wright, J. Latting, et al. 1975-5-4 680 B Riverside Santa Rosa Plateau, Santa Ana Mtns., Mesa de Burro 610 Comment
  CAS-BOT-BC135495  Cercocarpus betuloides var. betuloides A. M. White 1974-6-4 74 -671 Riverside Indian Rd. ca. 15 mi. W. of Sun City, site 4 Comment
  CAS-BOT-BC135499  Cercocarpus betuloides var. betuloides Nancy Ryan Zabriskie; Walter Zabriskie 1972-10-22 546 Riverside In small dry watercourse area, NE side Cactus Spring Trail west of Horsethief Canyon, Deep Canyon drainage, north slope Santa Rosa mts. 1097 Comment
  SD229254  Cercocarpus betuloides var. betuloides Dick Schwenkmeyer 2012-8-6 772 Riverside Garnet Queen Mine on Santa Rosa Mountain road, 4.1 miles southeast of the intersection of highway 74 and Santa Rosa Mountain Road. 1834 Comment
  UC187656  Cercocarpus betuloides var. betuloides C. R. Orcutt 1890-7-23 7 Riverside San Jacinto Mountains Comment
  UC1979560  Cercocarpus minutiflorus Darin L. Banks, Steve Boyd 1995-3-30 112 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., W of the Dripping Springs Alcove, E of the Woodchuck Trail. Comment
  UCR34892  Chaenactis artemisiifolia L. B. Ziegler 1967-5-18 128 Riverside San Jacinto Valley, side canyon off lower Bautista Canyon 534 Comment
  CAS-BOT-BC276377  Chaenactis carphoclinia S. B. Parish 1916-5-15 10838 Riverside Cottonwood Springs, Colorado Desert 792 Comment
  CHSC106490  Chaenactis carphoclinia var. carphoclinia T. Stoughton; J. McConnaughy, D. Monks, M. volke 2010-4-21 154 Riverside Colorado Desert; Little San Bernardino Mountains region: N of Desert Center, Jct of Hwy 177 and Kaiser Rd. W of Kaiser Rd. N of Hwy 177. 335 Comment
  LA203110  Chaenactis carphoclinia var. carphoclinia Carl Epling; William Robison 1933-6-27 sn Riverside Little San Bernardino Mountains, 5 mi. S of Gold Coin Mine Comment
  POM15194  Chaenactis carphoclinia var. carphoclinia Mary F. Spencer 1922-4-8 425 Riverside Palm Springs Comment
  UCR29853  Chaenactis carphoclinia var. carphoclinia George K. Helmkamp 1983-3-24 383- 19 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  RSA730040  Chaenactis fremontii R. F. Thorne 1973-3-30 72674 Riverside Morongo Valley Canyon: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, Mission Creek. 488 Comment
  RSA773044  Chaenactis fremontii Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5037 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66013 750 Comment
  SD126057  Chaenactis fremontii David Charlton 1988-2-25 1225 Riverside Alluvial fan, south side of Little San Bernardino Mountains; Dillon Road and 1000 Palms Oasis Road Junction, south of Joshua Tree National Prk 609 Comment
  UC1119693  Chaenactis fremontii H. S. Yates 1937-3-23 6417 Riverside near White Water; San Jacinto 304 Comment
  UCD130323  Chaenactis fremontii James Henrickson 1963-3-29 1203 Riverside 9 miles E of Mecca, along Highway 195. 182 Comment
  UCR196173  Chaenactis fremontii R. F. Thorne, M. Z. Thorne 1973-3-30 42674 Riverside Sonoran (Colorado) Desert, Morongo Valley Canyon, near mouth at junction of roads to Morongo Valley and Desert Hot Springs; [vicinity of Hwy 62 crossing of Mission Creek] 488 Comment
  RSA645615  Chaenactis glabriuscula Scott D. White, Steve Ogg 1994-4-21 1974 Riverside Millard Canyon, near stream crossing w/ USFS Road 2S05, +/-4 miles south of Bear Wallow Spring. 915 Comment
  UCR187501  Chaenactis glabriuscula Theresa Johnson 2006-5-11 097 Riverside Peninsular Range;, Santa Rosa Plateau, Los Alamos Canyon above confluence with San Mateo Canyon 427 Comment
  RSA586326  Chaenactis glabriuscula var. glabriuscula Darin L. Banks, Steve Boyd 1995-5-3 0191 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  UC1543221  Chaenactis glabriuscula var. lanosa Donald G. Nelson 1936-5-21 381 Riverside n Mt. Thomas (e of Lake Hemet, slopes just n of meadow in valley just e of Hurkey Creek Camp area, San Jacinto Mountains); San Jacinto Mountains, e of Lake Hemet, n of Mt. Thomas Comment
  CAS-BOT-BC100678  Chaenactis parishii H. M. Hall 1899-5-1 1178 Riverside Coyote [Canon] Canyon, El Toro Mt. Comment
  CAS-BOT-BC284341  Chaenactis stevioides Annie M. Alexander; Louise Kellogg 1941-5-11 2149 Riverside 1.5 miles north of Cottonwood Spring, Eagle Mountains, Colorado Desert 975 Comment
  JEPS8640  Chaenactis stevioides Rimo Bacigalupi with Richard Holm and R. S. Ferris 1953-4-20 4039 Riverside 7 mi e of Shaver Summit (along U.S. Highway No. 60-70, opposite Hayfield Dry Lake) 441 Comment
  RSA779693  Chaenactis stevioides Duncan S. Bell 2010-4-2 704 Riverside Arica Mountains: along jagged ridgeline of mountain range; in the Palen/McCoy wilderness; collecting on a sand ramp located just below the ridgeline on the eastern side that was trapped between the ridgeline and the steep narrow rocky canyons below it. 595 Comment
  RSA232907  Chamaesyce L. S. Rose 1967-12-20 67186 Riverside 5 mi. N of Thousand Palms oasis. 0 Comment
  VVC2109  Chamaesyce abramsiana Tim Thomas 2012-8-23 5874 Riverside Colorado Desert, WNW of Blythe on east side of McCoy Mtns, 5 miles north of I-10 168 Comment
  RSA38414  Chamaesyce albomarginata P. A. Munz 1946-10-21 11597 Riverside Near Ellen M. Mine, Joshua Tree National Monument 1296 Comment
  RSA435983  Chamaesyce albomarginata Anstruther Davidson 1893-4-12 s.n. Riverside Palm Springs. Comment
  RSA543172  Chamaesyce albomarginata Steve Boyd, T. S. Ross, Mike Hammitt 1991-5-2 6082 Riverside Vail Lake region, SW & W flanks of Billy Goat Mountain, 3 miles N Hwy 79, 1 mile W of Hwy 371, N of Aguanga. 600 Comment
  RSA651898  Chamaesyce albomarginata W. H. Grady 1948-4-24 s.n. Riverside Found 8 mi. west of Riverside at edge of dry grain field. 243 Comment
  RSA793464  Chamaesyce albomarginata Duncan S. Bell, John Anderson, Kim Clark, Keir Morse 2012-11-11 4370 Riverside Mecca Hills: at Hidden Spring just off Hidden Spring Canyon, approximately 2.6 air miles south of Shaver Well, or approx. 5.4 air miles northeast of junction of Box Canyon Road and the Coachella Canal. 216 Comment
  POM9669  Chamaesyce albomarginata P. A. Munz, R. D. Harwood 1920-2-28 3247 Riverside 3 miles west of Corona. 305 Comment
  SBBG118575  Chamaesyce parishii L. C. Wheeler 1952-4-5 6850 Riverside near cynyn E of Painted Cyn Comment
  GMDRC3108  Chamaesyce polycarpa J. Andre, T. La Doux 2008-9-13 10272 Riverside Eagle Mountains: at Joshua Tree Natl. Park boundary, lower slopes of south end of Eagle Mtns, along aqueduct access road 33 deg. 44.231' N 115 deg. 29.059' W. Elev. 1164 ft. 355 Comment
  RSA776138  Chamaesyce polycarpa Duncan S. Bell, Amanda Turek 2010-4-10 804 Riverside Riverside Mountains; southern section of the mountain range; approximately 1 air mile southwest of Riverside Mountain Peak. 269 Comment
  RSA784937  Chamaesyce polycarpa Duncan S. Bell 2012-2-12 3105 Riverside Mecca Hills: approximately 1.25 air miles north of Box Canyon Road, and approximately 4 air miles southwest of Shavers Well. 256 Comment
  RSA740641  Chamaesyce polycarpa var. polycarpa Scott D. White, Justin M. Wood 2008-7-10 12443 Riverside San Jacinto Mountains: Garner Valley, near Fobes Ranch Rd. 1354 Comment
  RSA432499B  Chamaesyce setiloba M. French Gilman 1940-1-22 4030 Riverside Smoketree Canyon. 305 Comment
Read comments
Sep 29 2011
  RSA0000022  Cheilanthes X fibrillosa S. B. Parish 1882-06 s.n. Riverside Oak Cliff, San Jacinto Canyon Comment
  RSA685714  Cheilanthes covillei N. R. Zabriskie, W. M. Zabriskie 1971-3-7 355 Riverside Andreas Canyon, E. slope San Jacino Mts. Comment
  UCSC001064  Cheilanthes covillei Peter Kamb 1947-3-3 482 Riverside Banning-Idyllwild Road below Barton Fire Lookout, San Jacinto Mountains 914 Comment
  UCR47228  Cheilanthes newberryi B. G. Pitzer, L. F. LaPre 1987-3-2 0423 Riverside Peninsular Range, Bundy Canyon, c. 2 miles SE of Lake Elsinore, 0.5 mile north of Bundy Canyon Road off Raciti Rd. 703 Comment
  UCR97464  Cheilanthes newberryi B. G. Pitzer 1997-3-23 2999 Riverside Perris-Aguanga Basin Region, Lakeview Mtns, c. 1 air mi. SSW of Mt. Rudolph, along powerline road 0.3 mi. east of Contour (Juniper Flats) Rd. 610 Comment
  UCSB38666  Cheilanthes parryi Cowan, Clark 1978-4-23 Riverside ESE slope above San Jacinto tramway parking lot, Chino Canyon 570 Comment
  CAS-BOT-BC70383  Cheilanthes viscida Annie M. Alexander; Louise Kellogg 1941-5-21 2214 Riverside North slope of Eagle Mountains 1158 Comment
  RSA0120484  Chenopodium Duncan S. Bell, Thomas Stoughton 2016-3-15 s.n. Riverside Orocopia Mountains; southwest section of the range; along the Coachella Canal, near its junction with Dos Palmas Springs Road. 23 Comment
  RSA502592  Chenopodium album Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-11 3728 Riverside Vail Lake area, wetlands of Wilson Creek, east of the lake. 457 Comment
  POM318801  Chenopodium ambrosioides Patricia Wilder 1970-10-15 4782 Riverside Prado Dam at base of dam in Prado Flood Control Basin. East of Chino Hills 152 Comment
  SD233273  Chenopodium californicum Scott D. White, Justin M. Wood 2009-5-22 12900 Riverside San Jacinto Mountains: Quinn Flat Meadow. Meadow and adjacent uplands. 1372 Comment
  SD73623  Chenopodium californicum Helen V. Witham 1970-5-1 853 Riverside Bautista Canyon, southeast of Hemet. 800 Comment
  SDSU13951  Chenopodium californicum Michael G. Simpson, A. Russell, T. Linz, & C. Guilliams 2000-4-2 2068 Riverside Santa Margarita Ecological Reserve (SDSU), ca. 1/4 mile west of northern gate for Northside field station, along 'insect trail.' Ca. 3 miles northeast of Gavilan Mtn. 396 Comment
  UC7268  Chenopodium pratericola H. M. Hall July 1901 2473 Riverside Tahquitz Valley San Jacinto Mountains 2133 Comment
  SEINET2065474 Image available Chilopsis linearis M. Roskey, F. Boyen 1933-6-5 521 Riverside Big Morongo Nature Conservancy Preserve, south of Morongo Valley. 502 Comment
  UCSB24505  Chilopsis linearis McMinn, Howard 1935-6-27 Riverside Palm Springs Comment
  UCSB50076  Chilopsis linearis Millett, Barbara 1980-5-18 Riverside Corn Springs Wash, Corn Springs Road, 8 miles southwest of junction with Chuckwalla Road 457 Comment
  SD258903  Chilopsis linearis subsp. arcuata Sarah J. De Groot 2005-5-16 4969 Riverside Along Worsley Road paralleling Highway 62 between Dillon Road and Indian Ave, Desert Hot Sprinds area, vicinity of Morongo Creek 495 Comment
  UC708737  Chilopsis linearis subsp. arcuata H. K. Wagnon 1944-5-30 406 Riverside Palm Springs, Tahquitz Creek Comment
  RSA674936  Chlorogalum pomeridianum Scott D. White 2000-5-30 7968 Riverside Corona Foothills: ca. 1 mi SE of the I-15/El centro Rd jtn. Adv to new housing construction. Alluvial terrances with steep, incised channels. 335 Comment
  CLARK-A1528-3597  Chorizanthe brevicornu John C. Roos 1948-4-24 3794 Riverside Whitewater 548 Comment
  RSA0106756  Chorizanthe brevicornu Duncan S. Bell, Amanda Turek 2009-3-29 145 Riverside Collecting in the large western drainage of the Arica Mountains, within the Palen/McCoy wilderness area. 434 Comment
  JOTR35321  Chorizanthe brevicornu var. brevicornu Harding, Mitzi, Mark Wheeler 2012-2-28 89 Riverside Joshua Tree National Park. Southeast Coxcomb Mountains; eastern slopes of southern tip of range (Stop 1) 177 Comment
  POM122108  Chorizanthe brevicornu var. brevicornu Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  UCR41543  Chorizanthe brevicornu var. brevicornu A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6011 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  POM84699  Chorizanthe corrugata M. Hill 1926-3-13 s.n. Riverside Near Dos Palmos. Comment
  RSA392655  Chorizanthe corrugata Christopher Davidson 1979-4-4 7695 Riverside Orocopia Mts. Lower end of Box Canyon Rd., 4.4 mi E of Mecca. 213 Comment
  RSA480077  Chorizanthe corrugata Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2164 Riverside Palen Pass at the north end of the Palen Mountains. 500 Comment
  SBBG27953  Chorizanthe corrugata F. W. Peirson 1927-4-12 7175 Riverside near fork of Painted Cyn near Mecca Comment
  UCD84932  Chorizanthe corrugata Chuck Hughes 2010-3-22 204 Riverside About 10.4 miles south of Highway 62, next to railroad tracks. 248 Comment
  RSA356625  Chorizanthe fimbriata Robert F. Thorne, C. W. Tilforth, Larry E. DeBuhr, E. Lathrop 1975-8-29 47322 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro 595 Comment
  UCD169658  Chorizanthe fimbriata R. F. Thorne; E. W. Lanthrop, W. Wisura 1977-7-8 49557 Riverside Santa Ana Mountains: along Ortega Highway (74), about 3 miles south-southwest of El Cariso, near junction of Decker and Morrell Canyons. 880 Comment
  RSA0098332  Chorizanthe parryi var. parryi Marc A. Baker 2015-4-15 18326 Riverside San Gorgonio Pass, 11 km east of Banning, 30 km NW of Palm Springs, 1.8 km north of Cabazon, 3.5 km east of the San Gorgonio River. 652 Comment
  UCR144413  Chorizanthe parryi var. parryi Scott D. White 2001-4-19 8380 Riverside Perris-Aguanga Basin, Perris / Sun City area. Just east of Goetz Road and south of Ethanac Road, c. 1.5 - 2.0 mi west of Interstate 215 473 Comment
  UCR167080  Chorizanthe parryi var. parryi Scott D. White 2005-3-29 10852 Riverside San Gorgonio Pass, Cabazon: alluvial fan and benches west of San Gorgonio river and south of I-10 fwy. west of existing gravel quarry, likely to be proposed for quarry expansion 598 Comment
  UCR260596  Chorizanthe parryi var. parryi A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41473 Riverside San Gorgonio Pass, north of San Gorgonio River wash, 3.1 miles due east of Cabazon, south of I-10 and 1.1 mi. ENE (77 deg. ) of water bottling plant, north edge of wind farm 451 Comment
  RSA740949  Chorizanthe polygonoides var. longispina Scott D. White, Justin M. Wood 2008-6-17 12195 Riverside San Jacinto Mountains: Morris Ranch Rd. - open area W of Goff Flat. 1616 Comment
  SD137672  Chorizanthe polygonoides var. longispina Darin L. Banks, Steve Boyd 1995-5-9 317 Riverside NW Palomar Mountains, north of the Agua Tibia Wilderness Area, north slope of Agua Tibia Mountain, the Dorland Mountain area, west of the Dripping Springs Alcove Area, west of Woodchuck Campground 730 Comment
  UCD99879  Chorizanthe rigida William H. Brooks 24-25 Feb 1989 s.n. Riverside McCoy Wash, north of Blythe. 579 Comment
  RSA746811  Chorizanthe staticoides Michael Honer 2003-7-15 1847 Riverside Rainbow area, just north of the San Diego County boundary and west of the I-15 Freeway. 366 Comment
  RSA777280  Chorizanthe watsonii Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4742 -a Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm)., Between N33.97538, W116.65161 and N33.97538 and W116.65119. 604 Comment
  SBBG37956  Chorizanthe watsonii T. L. Secrest 1948-4-7 Riverside above Whitewater 304 Comment
  LA206561  Chorizanthe xanti S. Beller; 1926-4-20 sn Riverside Palm Springs Comment
  POM97997  Chorizanthe xanti var. leucotheca E. C. Jaeger 1926-4-15 s.n. Riverside Mission Creek Wash Comment
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Nov 5 2011
  RSA5250  Chrysolepis sempervirens Carl B. Wolf 1932-8-5 3987 Riverside On trail from Tahquitz Valley to San Jacinto Peak; head of a fork of Tahquitz Creek. San Jacinto Mountains. 2744 Comment
  CLARK-A1528-1732  Chrysothamnus paniculatus John C. Roos 1943-10-17 2736 Riverside Little San Bernardino Mountains Comment
  RSA503356  Chrysothamnus paniculatus S. J. Myers 1988-10-18 s.n. Riverside Garnet Hill, N of Palm Springs, between the Southern Pacific railroad tracks and Hwy 10, E one-third of Granet Hill, SE to Palm Drive 206 Comment
  RSA688856  Chrysothamnus paniculatus Scott D. White, Michael Honer 2003-5-13 9250 Riverside San Bernardino Mtns: Whitewater Canyon, ca. 2 miles north of Bonnie Bell. 579 Comment
  RSA781915  Chrysothamnus paniculatus Duncan S. Bell 2010-5-1 895 Riverside Arica Mountains: northwest section of project area, approximately 10.5 air miles southwest of the ghost town of Rice, and approximately 2.6 air miles south of the junction of Highway 62 and the aqueduct access road. 291 Comment
  UCR89685  Chrysothamnus paniculatus Bern Schwenn 1993-9-14 s.n. Riverside Joshua Tree National Monument, Cottonwood Mtns, Pinkham Canyon in the wash, west of Cottonwood Springs. 1067 Comment
  CAS-BOT-BC160593  Chylismia claviformis subsp. aurantiaca E. A. McGregor 1917-3-20 704 Riverside Colorado Desert. Indio; north of date ranch Comment
  UC1004763  Chylismia claviformis subsp. aurantiaca Edmund C. Jaeger 1939-12-3 Riverside wash Orocopia Mts. 365 Comment
  UCSB7336  Chylismia claviformis subsp. aurantiaca Hawkins, L. 1956-4-14 Riverside at entrance to white water canyon Comment
  CAS-BOT-BC162783  Chylismia claviformis subsp. claviformis Larson; Beley 1975-4-24 74 -671 Riverside ~5 mi. N. Palm Springs, near inter. of Varner Rd. and T/C access. Comment
  JOTR30217  Cirsium neomexicanum Leary, C. and Leary, Pat 1979-5-5 3031 Riverside Joshua Tree National Park. 1 mi SE of Quail Mtn., Joshua Tree National Monument; T2S sec 14 Comment
  SEINET3102065  Cirsium occidentale var. californicum Marc A. Baker, Michelle Cloud-Hughes 2011-6-10 17365 Riverside Along Morris Ranch Road, 400m north of Kenworthy Station, 4km west of Butterfly Peak, west base of San Jacinto Mountains, Garner Valley, just east of Thomas Mountain. 1420 Comment
  CDA31794  Cirsium occidentale var. occidentale E. Storm 1979-4-25 Riverside Banning Mias Canyon Rd. 0 Comment
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Mar 13 2011
  CAS-BOT-BC285737  Cirsium vulgare Scott D. White 1996-9-22 4537 Riverside Perris Basin, W Riverside Co. Perris: Nuevo Road near intersect. w/ Wilson Ave., W of the San Jacinto Riv crossing 435 Comment
  RSA594504  Cirsium vulgare D. L. Banks, Rashmi Pant 1996-5-13 1015 Riverside NW Palomar Mountains; Agua Tibia Mountains; Foothills S of Hwy. 79 ; E of the Dripping Spring Campground; In a small spring in oak woodland, approximately 1 km E of the Dripping Springs Guard Station, S of Hwy. 79 536 Comment
  CAS-BOT-BC438861  Cistanthe monandra Mrs. H. C. Cantelow 1935-3-20 697 Riverside Palm Springs Canyon Comment
  CSUSB239  Clarkia purpurea subsp. quadrivulnera Loretta Bates 1978-5-27 Riverside Along Tenaja Road, just north of Mesa de Burro on the Santa Rosa Plateau. Comment
  UC76443  Clarkia purpurea subsp. quadrivulnera Miss M. Alice King April 1893 Riverside Menifee Comment
  UCR81098  Clarkia rhomboidea Scott D. White 1993-5-29 1454 Riverside San Bernardino Mtns, Banning Canyon along the road to Raywood Flat, Yucaipa Ridge 1341 Comment
  UCR213472  Clarkia unguiculata A. C. Sanders 2010-5-19 38417 Riverside Peninsular Range/San Bernardino Valley, Riverside, western end of North Hill, edge of Fairmont Park, above intersection of Redwood Dr. and Randall Rd. 250 Comment
  UCR162410  Claytonia parviflora S. J. Myers, Chet McGaugh 2003-4-7 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1098 Comment
  RSA523491  Claytonia parviflora subsp. tenuifolia Steve Boyd, Timothy S. Ross, Laurel Arnseth 1990-3-30 3951 Riverside Vail Lake area, saddle at N base of Big Oak Mtn, S of Black Hills. 732 Comment
  CLARK-A1045-96  Claytonia perfoliata var. parviflora George K. Helmkamp 1977-4-30 Riverside San Jacinto Mountains 6 miles west of Pine Cove; on dirt road between Pine Cove and North Fork of the San Jacinto River; ; San Jacinto Peak 7.5'Q 1676 Comment
  RSA219223  Clematis ligusticifolia C. W. Tilforth 1970-10-16 319 Riverside Road to Santa Rosa Mountain Comment
  RSA561520  Clematis ligusticifolia Steve Boyd, Tim S. Ross, Dave Bramlet 1992-9-9 7676 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Upper San Mateo Canyon, from the junction of Tenaja Road (7S01) and Los Almos Road (7S04) and the confluence of Los Almos Creek,, up the San Mateo Trail north to Potrero de la Cienega. 396 Comment
  UCR169311  Clematis ligusticifolia T. B. Salvato, John F. Green 2004-5-27 598 Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1463 Comment
  UCR195112  Clematis ligusticifolia A. C. Sanders, Tim Thomas 2008-8-1 35944 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1402 Comment
  UC853959  Clematis pauciflora P. A. Munz and I. M. Johnston 1922-5-7 5257 Riverside Little San Bernardino Mts., Keyes Ranch 1066 Comment
  RSA188725  Cleome isomeris H. U. Stauffer, R. F. Thorne 1964-5-5 5922 Riverside 6.5 km south of Morongo Valley, 4.8 km south of County border. 550 Comment
  UCR85282  Coleogyne ramosissima Bern Schwenn 1994-4-17 s.n. Riverside Southern Mojave Desert, Joshua Tree National Monument, Pinto Mtns, west of Arch Rock along geology trail to Grand Tank, at 'Disappearing Rock' signboard and in campground adjacent to trail 1189 Comment
  RSA0117414  Collinsia concolor Steve D. Boyd 1986-4-22 1734 Riverside Walker Canyon area, where Temescal Creek (=Alberhill Creek) flows between Alberhill Mtn. and Gavilan Hills. Comment
  UCR193134  Collinsia concolor A. C. Sanders, Tim Thomas 2008-6-20 35529 Riverside Peninsular Range; San Jacinto Mtns., May Valley area, at spring with trough, along dirt road (May Valley Rd.) c. 1.5 mi. ENE of Keenwild, 0.5 mi. NW of FS Rd. 5S05 1610 Comment
  UCR227589  Collinsia concolor Duncan S. Bell, Valentin Arvizu 2010-5-24 1107 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 3.4 air mi southeast of junction of Forest Service Road 6S04 and Forest Service Road 6S13 1385 Comment
  RSA0117411  Collinsia concolor John Olmsted 1958-6-15 177 Riverside May Valley Truck Trail 2 mi. SE of Saunder's Meadow SW of Idyllwild Calif. (turn S from Idyllwild-Hemet Rd. at Idyllwild school.) 1646 Comment
  RSA353380  Colubrina californica A. C. Sanders 1986-3-3 6141 Riverside Corn Spring, Chuckawalla Mtns, wash below the spring and wash and rocky slopes to the south. 488 Comment
  SBBG53832  Colubrina californica J. C. Roos 1967-11-11 Riverside Chuckwalla Mtns, 3 mi SE of Desert Center Comment
  UCR22639  Colubrina californica C. S. Jones 1979-3-27 41 Riverside Sonoran (Colorado) Desert, in SE facing canyon about 300 yards from unnamed dirt road approximately 5 mi. north of I-10, 4 mi. west of Desert Center 427 Comment
  SBBG87474  Condalia globosa var. pubescens A. C. Sanders 1986-3-1 6042 Riverside Chuckwalla Bench, W side of Chuckwalla Mtns 9 mi S of Interstate 10 on the gasline rd, 2 mi airline S of the Model Mine 579 Comment
  RSA741553  Conyza canadensis Justin M. Wood 2008-9-22 163 Riverside SW Perris Basin; Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  RSA761163  Corallorhiza maculata Shawn Krosnick, C. Martinez, Naomi Fraga, L. McDade, et al. 2010-8-14 696 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  SFV20151  Cordylanthus rigidus subsp. setigerus J. N. Hogue, S. G. Hogue, J. M. Wrublik 2005-9-4 261 .5 Riverside Santa Rosa Mountains Garnet Queen Creek at Santa Rosa Mountain Truck Trail (=USFS Road 7S02). 4.8 miles from Highway 74. 1865 Comment
  RSA773040  Coreopsis bigelovii Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5041 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm). 750 Comment
  POM305808  Coreopsis californica Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1051 Riverside Corona-Elsinore. Comment
  POM8240  Coreopsis californica P. A. Munz, R. D. Harwood 1920-3-20 3385 Riverside Temescal Canyon. 366 Comment
  RSA770693  Coreopsis californica Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4794 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  CLARK-A1656-756  Corethrogyne filaginifolia Theo Glenn 1981-10-15 Riverside Snow Creek 396 Comment
  POM158242  Corethrogyne filaginifolia P. A. Munz, I. M. Johnston 1928-9-6 11239 Riverside 1 mile W of Cabazon, Riverside Comment
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Mar 13 2011
  UC485372  Corethrogyne filaginifolia F. M. Reed 1905-9-25 235 Riverside Arroyo Tequisquit [in Riverside] Comment
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Mar 10 2011
  UC63197  Corethrogyne filaginifolia H. M. Hall Riverside Riverside Comment
  UCR65277  Cosmos sulphureus Steve Boyd 1989-7-9 3778 Riverside City of Riverside, 4863 Rubidoux Ave. Comment
  UCR239815  Cotoneaster pannosus O. F. Clarke 2004-11-28 s.n. Riverside Riverside, south of Fairmont Park 239 Comment
  SBBG104032  Crassula aquatica A. C. Sanders 1993-4-1 13666 Riverside western edge of Hemet, NE corner of intersection of Myers St. and Devonshire Ave, 0.75 mi NE of intersection of Florida Ave (St Hwy 74) and Warren Rd Just S of Tres Cerritos; T5S, R1W, SW/4 of NE/4, S7 460 Comment
  UCR232785  Crassula connata John F. Green 2008-4-15 0408- 23 Riverside Peninsular Range; Perris-Aguanga Valley, Moreno Valley/Mead Valley area, square parcel 0.8 km on a side, between Nandina Ave. and Oleander Ave., east of Day St. 523 Comment
  RSA593888  Crassula solieri Steve Boyd, Dave Bramlet 1996-4-19 8611 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  UCR281114  Cressa truxillensis Mitch Provance, John Hazlett, Matt K. Beyers, Jeremiah George 2017-5-23 517- 26 Riverside Menifee Valley, Menifee, about 0.5 miles south of Sun City, and 0.5 miles west of Romoland, SW corner of Lazy Creek Rd. and Murrieta Rd. 431 Comment
  SBBG118801  Crocanthemum scoparium S. D. White 1999-11-12 7629 Riverside Murrietta area, corner of Nutmeg and Clinton Keith; T7S R3W S4 410 Comment
  SEINET3083387 Image available Crossosoma bigelovii P. A. Rauch 1968-2-22 Riverside Cottonwood Canyon, San Bernardino Mts. Comment
  CLARK-A1528-2644  Croton californicus Charles S. Papp 1963-6-29 310 Riverside Santa Ana River Comment
  OBI26132  Croton californicus David J. Keil 1976-12-12 11911 Riverside 5 mi E of Indio along I-10 Comment
  SD216474  Croton californicus Carol R. Annable 1995-3-9 2255 Riverside Circa 13 kilometers North of Rancho Mirage. BLM land behind A-1 Cement. Comment
  SEINET9255224 Image available Croton californicus J. C. Roos 1965-6-23 Riverside Palm Springs Comment
  UC1130375  Croton californicus A. E. Wieslander 1929-1-25 41 Riverside Bautista Creek San Jacinto Quadrangle (near Plot 9) 609 Comment
  UCR156091  Croton californicus T. B. Salvato, Kent Beaman 2005-5-16 803 Riverside San Jacinto Mtn foothills, San Jacinto River east of Valle Vista, just downstream from the Forest Service boundary and north of CA Hwy 74 585 Comment
  UCR258633  Croton californicus T. B. Salvato, Matthew Malle, Thomas M. Sullivan Jr 2014-4-22 7898 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, dirt extension of Lake Street, c. 1.3 mi north of Hwy 15 and Temescal Canyon 555 Comment
  UCR60267  Croton setiger Steve Boyd, T. S. Ross, L. Arnseth 1989-6-10 3688 Riverside Peninsular Range, Vail Lake area, benches of Arroyo Seco and slopes of hills to the east 488 Comment
  RSA736303  Crypsis schoenoides Scott D. White, Justin M. Wood 2008-5-13 11950 Riverside I-215 freeway right of way. South of Scott Rd. Comment
  CAS-BOT-BC133959  Cryptantha J. H. Thomas 1949-2-28 55 a Riverside About 6.5 miles south-east of Banning between Banning and Palm Springs Comment
  SDSU21767  Cryptantha G. D. Wallace 2003-7-8 4028 Riverside Peninsular Ranges; San Jacinto Mountains region: Hidden Lake. 2652 Comment
  POM368198  Cryptantha angustifolia D. A. Young 1969-3-28 342 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  RSA4903  Cryptantha angustifolia C. B. Wolf 1932-4-27 3019 Riverside Colorado Desert, 17 miles E of Mecca on the Blythe road. 152 Comment
  RSA707355  Cryptantha angustifolia Jonathan Snapp-Cook, Kurt Roblek, Kevin B. Clark, Reas Chavez 2005-6-30 CFW- 4 Riverside Rancho Mirage, eastern Riverside County. 0.5 miles NWW of intersection of Ramon Road and Los Alamos Way. This area is referred to as Big Dune N 91 Comment
  SD126016  Cryptantha angustifolia F. R. Fosberg 1930-5-17 S 2622 Riverside Deep Canyon Comment
  SEINET3152142  Cryptantha angustifolia S. B. Parish 1907-4-15 6158 Riverside Western base of the Colorado desert. 450 Comment
  UCR47804  Cryptantha angustifolia F. R. Fosberg 1932-3-13 10623 Riverside Sonoran (Colorado) Desert, Coachella Valley, Thousand Palms Canyon 213 Comment
  UCR52025  Cryptantha angustifolia Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2181 Riverside Sonoran (Colorado) Desert, NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  CDA40488  Cryptantha barbigera T. C. Fuller 1962-4-4 7990 Riverside West of Highway 99 [later renumbered Highway 86] to Indio, 1.3 miles north of Oasis. 0 Comment
  POM368283  Cryptantha barbigera H. de Forest 1924-4-13 s.n. Riverside Tahquitz and Andreas Canyons. Comment
  SJSU11359  Cryptantha barbigera R. C. McGehee 1970-4-15 199 Riverside Wileys Well 26 mi SW of Blythe Comment
  UCR226581  Cryptantha barbigera var. fergusoniae Jim Andre 2011-2-18 15827 Riverside Coachella Valley, north end of valley at base of Morong Canyon, 0.5 mi north of indian Canyon Road, 1 mi west of Hwy 62 473 Comment
  UCR86879  Cryptantha circumscissa A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16259 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, San Gorgonio Pass; alluvial fan at the mouth of Snow Creek, between Hwy 111 and Snow Creek Village 427 Comment
  UCR214565  Cryptantha costata A. C. Sanders 2010-3-15 37407 Riverside Sonoran (Colorado) Desert, pass between Chuckwalla Valley and Palo Verde Mesa, south of I-10 between the Mule and McCoy Mountains, c. 12 miles WSW (264 deg. ) of Blythe 152 Comment
  UCR228207  Cryptantha costata Dave Silverman 2010-3-24 7824 Riverside Sonoran (Colorado) Desert, South Palen Lake, Chuckwalla Valley, 5.1 km SE of Sidewinder Well, 2.7 km SW of Palen Dunes Dr., and 3.4 km N of Interstate 10 133 Comment
  GMDRC2328  Cryptantha decipiens J. Andre, T. La Doux 2006-4-11 8140 Riverside Little San Bernardino Mountains: Joshua Tree National Park: along paved road through Wilson Canyon at Fried Liver Wash. Elev. 2814 ft. 858 Comment
  RSA791485  Cryptantha decipiens J. Andre, T. La Doux, R. B. Kelley 2011-5-4 21077 Riverside Joshua Tree National Park; Long Canyon, up side canyon approx. 400 m. west of main canyon drainage. 1172 Comment
  UCR176721  Cryptantha decipiens A. C. Sanders, K. C. Rose 1995-4-27 16732 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
  JEPS67662  Cryptantha intermedia W. L. Jepson 1914-5-25 6084 Riverside near Redlands (between Beaumont and Redlands); San Timoteo Canyon Comment
  RSA33876  Cryptantha intermedia N. C. Cooper 1944-6-4 1364 Riverside Elsinore Mountain; Lookout at top. 1066 Comment
  RSA450444  Cryptantha intermedia J. C. Roos 1950-4-22 4746 Riverside Pigeon Pass Comment
  RSA792745  Cryptantha intermedia R. F. Thorne 1995-3-29 63031 Riverside White Water Canyon 600 Comment
  SBBG34217  Cryptantha intermedia H. Haid 1969-5-11 Riverside Bautista Cyn, ca. 20 mi SE of Hemet 914 Comment
  SD237367  Cryptantha intermedia A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37726 Riverside Peninsular Range: Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34a^z) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 427 Comment
  UCR16096  Cryptantha intermedia Patty Bartoli 1978-4-2 s.n. Riverside San Jacinto Mtns/ San Jacinto Valley, 2.3 mi east of Hemet on Hwy 74 Comment
  POM13223  Cryptantha maritima E. C. Jaeger 1920-4-20 1124 Riverside Palm Springs. Comment
  RSA508006  Cryptantha micrantha var. lepida Steve Boyd, C. Boyd, K. A. Boyd, L. Arnseth, Richard Noyes 1988-5-28 2302 Riverside Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest. 1500 Comment
  UCR116628  Cryptantha micrantha var. micrantha A. C. Sanders 2001-3-20 23845 Riverside Western Colorado Desert, Coachella Valley, Garnet, north side of 19th Ave., 1/2 mi. (airline) NW of intersection of I-10 and Indian Ave. 235 Comment
  RSA543954  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6185 b Riverside Santa Ana Mountains, lower flank of range along the Bedford Truck Trail on ridge between Bedford and McBribe Canyons. 549 Comment
  UC1595636  Cryptantha microstachys Steve Boyd 1991-5-10 6213 Riverside just n mouth of Hagador Canyon (Santa Ana Mountains, base of range) 426 Comment
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Jun 8 2012
  UCR193985  Cryptantha muricata A. C. Sanders 2008-7-25 35908 Riverside Peninsular Range; San Jacinto Mtns., east side of May Valley, along Bonita Vista Rd. at foot of hills 1580 Comment
  UCR19808  Cryptantha muricata W. W. Mayhew 1977-6-12 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1921 Comment
  RSA0079427  Cryptantha muricata var. jonesii Steve Boyd, D. E. Bramlet 1990-4-29 4477 Riverside Lake Skinner County Park, S flank of Bachelor Mountain. Comment
  JEPS67801  Cryptantha pterocarya E. E. Schellenger May 1920 Riverside Chuckwalla Bench Colorado Desert Comment
  JOTR34322  Cryptantha utahensis Andre, Jim 2012-4-11 20823 Riverside Joshua Tree National Park. Western margin of Eagle Mountains; 0.6mi south of Cottonwood Visitor Ctr. along Rte 11 912 Comment
  RSA1316  Cucurbita palmata J. T. Howell 1928-7-9 1066 Riverside Temescal Canyon, 6 miles south of Glen Ivy 335 Comment
  UCR187360  Cucurbita palmata R. E. Riefner Jr. 2006-8-2 06- 349 Riverside Peninsular Range, Lakeview Mountains, vicinity of Alicante Dr. and Jamawag Rd., north of Leon Rd. 550 Comment
  JOTR29436  Cuscuta californica var. californica La Doux, Tasha, M. Bell, B. Truesdell 2006-3-22 1370 Riverside Joshua Tree National Park. East Wide canyon 499 Comment
  RSA717672  Cuscuta denticulata A. C. Sanders, G. Nuhn 1995-4-20 16587 Riverside Colorado Desert, Coachella Valley, near Fan Hill, NE of Dillon Road on an abandoned road, below Little San Bernardino Mtns., NE of 1000 Palms. 350 Comment
  UCR92718  Cuscuta pentagona A. C. Sanders, S. Ogg 1994-7-28 15174 Riverside Santa Ana River between the Hwy 60 Bridge and the Mission Blvd. Bridge 243 Comment
  UCR26987  Cuscuta subinclusa E. W. Lathrop 1966-5-8 6418 Riverside Peninsular Range; Santa Ana Mountains, Cleveland National Forest, Hagador Canyon, Trabuco District, 3 miles SW of Corona 275 Comment
  UCR117348  Cylindropuntia californica var. californica Mitch Provance 1998-3-22 282 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', or also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  SEINET5624439 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2012-4-9 17531 Riverside 1km north of Chiriaco Summit, 48km east of Indio, Hayfield 7.5' USGS topographic quadrangle 555 Comment
  RSA0098477  Cylindropuntia echinocarpa Marc A. Baker 2015-4-14 18325 Riverside San Gorgonio Pass, south base of the San Bernardino Mountains, 24 km NW of central Palm Springs, 3 km ENE of Cabazon. 559 Comment
  SEINET2449498  Cylindropuntia ramosissima Sears 1978-3-16 811 Riverside 10 mi N of Blythe along road to Midland. Forrhills of the Big Maria Mts.; 0 229 Comment
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Nov 18 2015
  UCR84066  Cynodon dactylon A. C. Sanders, L. Ard 1994-7-11 15057 Riverside San Bernardino Mtns., Cherry Valley, irrigated landscaping at the Edward Dean Museum, Oak Glen Road, 1 mi north of Orchard St. 1000 Comment
  SEINET3004915  Cyperus G. Rink, M. Baker, T. Thomas, M. Honer, A. Karl 2010-10-2 10333 -b Riverside Canal two miles north of Blythe. 70 Comment
  OBI37479  Cyperus eragrostis Steve Boyd 1985-7-23 1001 Riverside 5 mi W of Rancho California at jctn of Rancho Calif Rd and De Luz Rd 427 Comment
  VVC698  Cyperus eragrostis P. J. MacKay, T. Thomas, A. C. Sanders 1997-2-8 97 Riverside Colorado Desert, Palm Springs, Tahquitz debris basin mouth of Tahquitz Canyon Comment
  CAS-BOT-BC114419  Cyperus erythrorhizos A. C. Sanders; Mitch Provance 1999-9-26 23123 Riverside San Jacinto Valley: Mystic (San Jacinto) Lake, 1.4 mi SE of Jackrabbit Trail, 433 Comment
  UCR59235  Cyperus parishii Jeri Hirshberg 1989-7-20 s.n. Riverside Diamond Valley, south of Newport Road, near Searl Ranch. Comment
  POM1191  Dactylis glomerata D. L. Crawford, I. M. Johnston 1917-6-9 1227 Riverside Santa Ana River near Corona Comment
  SEINET10773991  Dalea J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12828 Riverside Near White Water, west of Joshua Tree National Park; north of I-10 (just west ofjunction with CA 62) on Whitewater cut-off, then ca 1.3 km on Whitewater Canyon Road. Comment
  RSA0124740  Dalea mollis Duncan S. Bell, LeRoy Gross 2016-3-9 8845 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; central section of range, approximately 1.75 air miles north of Gucci Spring. 551 Comment
  SFV17535  Dalea mollis R. Moss Apr 1998 s. n. Riverside Mojave Desert Mecca Hills Wilderness Area (BLM) north of Salton Sea near Shavers Well. 500 Comment
  UC218191  Dalea mollis P. A. Munz and D. Keck Apr 9 1922-Apr 12 1922 4870 Riverside vicinity of Corn Springs; Colorado Desert, Chuckwalla Mts. 457 Comment
  RSA517825  Dalea mollissima Steve Boyd, Orlando Mistretta 1986-3-13 1443 Riverside West side Palen Mts.: NE of Desert Center. Comment
  SEINET3102116  Dalea mollissima Marc A. Baker, Michelle Cloud-Hughes 2011-9-25 17458 Riverside Chuckwalla Valley, 24km WSW of Blythe, 8km SSE of the summit of McCoy Peak, low stabilized sand dunes. 135 Comment
  UC447181  Dalea mollissima J. Ewan 1931-4-4 4146 Riverside 5 mi. e. Desert Center; Colorado Desert Comment
  SEINET10871076  Dalea spinosa David B. Dunn, A. Folsom 1948-6-17 Dunn 3803 Riverside By quad 2. At camp in pushawalla canyon under palms. Desert dry wash indio Hills. Colorado desert. Comment
  POM48728  Datisca glomerata P. A. Munz, I. M. Johnston 1924-7-29 8833 Riverside 6 miles SE of Poppet Flat, San Jacinto Mountains. 1524 Comment
  RSA381083  Datisca glomerata R. F. Thorne, Steve Boyd, E. W. Lathrop 1985-7-18 61178 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: along Cole Canyon. 535 Comment
  SBBG133353  Datisca glomerata S. D. White, A. Carey, L. Archa 2004-8-5 10674 Riverside San Jacinto Mtn foothills, Soboba Indian Reservation, Indian Creek from confluence w/ San Jacinto River to +/- 2 mi upstream. 534 Comment
  UCR199727  Datisca glomerata Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10674 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Indian Creek and adjacent uplands, from confluence with San Jacinto River to c. 2 miles upstream 610 Comment
  RSA0063033  Datura meteloides Andrew Haimov, April Sleigh 1992-5-19 91 Riverside West side of Davis Road, 1 mile south of Allessandro Road. Comment
  UCR162548  Datura wrightii S. J. Myers 2005-10-6 s.n. Riverside Perris-Aguanga Basin, Noble Creek near Hwy I-10 at San Timoteo Canyon Road/Oak Valley Parkway 762 Comment
  RSA500216A  Daucus pusillus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3527 A Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  RSA525264  Daucus pusillus Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4577 Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 579 Comment
  SEINET13943946 Image available Daucus pusillus H. B. Frost 1914-1 H. B. F. 1328 a & b Riverside Riverside C.E.S. Comment
  CAS-BOT-BC294120  Deinandra kelloggii Virginia Moran 2003-5-22 s.n. Riverside Peninsular Range: Wilson Valley Mitigation Bank (Center for Natural Lands Management), NE of Wilson Valley Road and W of Wilson Creek 915 Comment
  SD240867  Deinandra kelloggii A. C. Sanders, John F. Green 2012-6-1 40224 Riverside Peninsular Range; Santa Ana Mtns. Region: old railroad grade in hills between I-15 and Temescal Canyon Rd., 0.6 km WNW (295a^z) of El Hermano Rd. junction with Temescal Cyn. Rd. 324 Comment
  UCR253002  Deinandra mohavensis R. E. Riefner Jr. 2013-6-15 13- 118 Riverside Garner Valley, north side of Hwy 74 c. 0.45 mi east of Thomas Mountain Road (Forest Route 6S130), Little Thomas Mountain area 1386 Comment
  RSA736329  Deinandra paniculata Scott D. White, Justin M. Wood 2008-5-27 12036 Riverside Perris Basin: I-215 freeway, between Clinton Keith and Alamos. 396 Comment
  SD231214  Deinandra paniculata Scott D. White 2003-12-1 9890 Riverside Santa Ana River Valley: City of Riverside (La Sierra area). Riverside West. 244 Comment
  UCD96240  Delphinium parishii H. Lewis; C. Epling 1941-5-4 s.n. Riverside 5 miles S. of White Tank on the road to Pinto Basin, Joshua Tree Nat. Mon. Comment
  UCSB1984  Delphinium parryi White, Arthur 1960-5-14 Riverside 100yds. s. of road between Banning and Idyllwild; 2.2 mi s. of Hwy. 70 & 99 Comment
  SBBG35010  Delphinium parryi subsp. parryi T. L. Secrest 1951-5-18 Riverside San Jacinto, few mi E of Hemet Comment
  UC1979564  Delphinium parryi subsp. parryi Darin L. Banks, Steve Boyd 1995-5-9 396 Riverside Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area, W of Woodchuck Campground. Comment
  UCR24985  Deschampsia elongata A. C. Sanders 1980-8-23 1762 Riverside San Jacinto Mountains, Black Mountain; c. 100 yards above Black Mtn. Campground along a small stream 2241 Comment
  CAS-BOT-BC39735  Descurainia adenophora Edmund C. Jaeger 1921-6-14 s.n. Riverside MacMullen Trail, San Jacinto Mountains. 1280 Comment
  JEPS53423  Descurainia incisa subsp. incisa Carl V. Meyer 1928-7-26 522 Riverside 0.5 mi e Dutch Flat Comment
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Jul 3 2010
  RSA776086  Descurainia pinnata Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-23 818 Riverside Chuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.' 396 Comment
  CAS-BOT-BC43198  Descurainia pinnata subsp. brachycarpa H. M. Hall 1898-7-22 1053 Riverside San Bernardino Mountains. Comment
  CAS-BOT-BC402293  Dicentra chrysantha Marcus E. Jones 1900-7-13 s.n. Riverside Dripping Station, near Temecula 365 Comment
  UCR160689  Dichelostemma capitatum John F. Green 2005-2-24 s.n. Riverside Santa Ana Mtns Region, Santa Rosa Plateau, just SE of Redonda Mesa and SW of Mesa de Colorado, 9.6 acre parcel south of the junction of El Cerezo Road and Corona Cala Camino 793 Comment
  RSA192267  Dichelostemma capitatum subsp. capitatum E. W. Lathrop 1960-3-11 4660 Riverside 5 miles west of Murrieta. Comment
  UCR215508  Dichelostemma capitatum subsp. capitatum Daphne K. Christopher, Hannah I. Stevens 2003-4-3 082 Riverside Peninsular Range, UC Riverside Motte Rimrock Reserve 536 Comment
  RSA696747  Dicoria canescens J. Russell Bruff 1927-10-8 1 -H Riverside Thousand Palms Comment
  UCR85283  Dicoria canescens Bern Schwenn 1994-3-21 s.n. Riverside Sonoran (Colorado) Desert, Joshua Tree National Park and vicinity, Little San Bernardino Mtns, along radio tower road in first canyon west of mouth of Pushawalla Canyon, east of Upper Thousand Palms Canyon 610 Comment
  RSA554294  Digitaria sanguinalis Scott D. White 1992-2-25 92 -7 Riverside Santa Rosa Plateau, between Sandia and De Luz Creeks, ca. 1.5 (air) mi. W of Sandia Canyon; 7 miles SW of Murrieta. 305 Comment
  RSA0019275  Dimorphotheca fruticosa Ed LaRue 1989-5-8 s.n. Riverside Mockingbird Canyon area, S of Van Buren Blvd and ca 1/2 mi (airline) E of Mockingbird Canyon Road. Comment
  CAS-BOT-BC150936  Diplacus bigelovii var. bigelovii Edmund C. Jaeger 1939-3-30 s.n. Riverside Desert Center Comment
  SEINET229299 Image available Diplacus bigelovii var. bigelovii Leila M. Shultz, John S. Shultz 1985-1 8346 Riverside Chuckawalla Mountains, alluvial fans at Alligator rock 335 Comment
  SD139995  Diplacus brevipes Scott White 1993-4-22 1227 Riverside North Alberhill Ranch, in hills N of Walker Canyon 487 Comment
  CAS-BOT-BC153097  Diplacus fremontii John Thomas Howell 1927-8-2 2919 Riverside Near Idyllwild on road to Keen Camp, Mt. San Jacinto 1676 Comment
  RSA0019406  Diplacus fremontii Mary F. Spencer 1921-6-16 375 Riverside Near Idyllwild, San Jacinto Mountains 1616 Comment
  CAS-BOT-BC150672  Diplacus longiflorus Steve Boyd 1986-4-22 1749 Riverside Temescal Canyon: just south of Interstate 15 Comment
  CAS-BOT-BC150871  Diplacus puniceus L. Haines; L. Erickson 1937-4-9 s.n. Riverside Riverside - Hemet Road near Winchester turnoff Comment
  UCR100110  Ditaxis californica B. G. Pitzer 1997-10-19 3355 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
  UCR102949  Ditaxis californica George K. Helmkamp 1998-4-4 3181 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  SBBG81483  Ditaxis claryana S. A. Junak 1983-3-23 1638 Riverside E side of Jefferson Rd across from entrance to Cahuilla Lake County Park, S of Indio Comment
  JOTR36013  Ditaxis lanceolata Harding, Mitzi, T. Herskovits 2012-3-16 220 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  SEINET4326791 Image available Ditaxis lanceolata Scott D. White 2001-4-3 8262 Riverside Sonoran (Colorado) Desert; Shavers Valley, near the I-10 Freeway, c. 15 miles east of Indio junction of I-10 and Calif. SR 111, adjacent to powerline access roads at unnamed freeway exit accessing pump station 396 Comment
  UC2015642  Ditaxis lanceolata A. C. Sanders with G. Helmkamp & P. MacKay 1995-3-12 16097 Riverside Coachella Valley: alluvial slopes at the foot of Rabbit Peak, Santa Rosa Mtns., below Sheep Canyon. Comment
  SD143929  Ditaxis neomexicana G. K. Helmkamp, A. C. Sanders, P. McKay, T. Thomas 1997-2-8 19685 Riverside Colorado Desert/San Jacinto Mountains, Palm Springs area, Murray Canyon off Palm Canyon, on south side of boulders along trail near the mouth of the canyon 244 Comment
  UCR173880  Ditaxis neomexicana Scott D. White, Michael Honer 2003-5-15 9309 Riverside Sonora (Colorado) Desert, Bajada below Little Maria/Big Maria Mtns, near Inca RR siding and c. 15 air mi NW of Blythe 76 Comment
  RSA530740  Dithyrea californica B. C. Templeton, I. W. Clokey 1930-4-9 1075 Riverside Palm Springs Station; Colorado Desert 400 Comment
  SEINET3167268  Dithyrea californica R. W. Spellenberg, N. Zucker 2005-2-14 13497 Riverside 50 km NW of Blythe on Midway Rd., 5km NW of Midway. 14 km SE of Rice 50 Comment
  UCR178570  Dithyrea californica R. G. Swinney 1967-2-4 0012 Riverside Sonoran (Colorado) Desert/ San Jacinto Mtns., Snow Creek 305 Comment
  UCR244731  Dithyrea californica Jim Andre 2012-3-19 21349 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Hwy 177, 8.6 mi. NE of junction with I-10 152 Comment
  UCR249501  Dithyrea californica T. B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-3-8 7292 Riverside Sonoran (Colorado) Desert, south of Hwy I-10, north of the Chuckwalla Mountains, Chuckwalla Valley Road c. 1.4 km west of its junction with Augustine Pass Road 137 Comment
  SEINET5342919  Dithyrea californica E. Neese 1979-4-10 7065 Riverside Joshua Tree Nat. Mon. s of Twenty-Nine Palms, between Pinto Basin jct and Cottonwood Wash. 305 Comment
  CAS-BOT-BC136110  Dodecatheon alpinum Carl B. Wolf 1932-8-5 3962 Riverside 1st Real, wet meadow on trail from Tahquitz Valley to San Jacinto Peak - San Jacinto Mountains 2743 Comment
  RSA674926  Dodecatheon clevelandii Scott D. White, Pam De Vries 2000-4-25 7726 Riverside Temescal Valley: Corona area, eastern foothills of Santa Ana Mountains just above citrus groves. 412 Comment
  UC10471  Draba corrugata var. saxosa H. M. Hall July 1901 2499 Riverside along creeks of Tamarack Valley San Jacinto Mountains, Tamarack Valley 2743 Comment
  UC64193  Draba cuneifolia H. M. Hall 1897-2-27 366 Riverside Rawson Comment
  UCR20811  Draba cuneifolia A. C. Sanders, Steve Boyd 1980-4-17 1344 Riverside San Jacinto Mtns, Pine Meadow in upper Garner Valley 1433 Comment
  POM183961  Draba cuneifolia var. integrifolia P. A. Munz 1932-3-15 12009 Riverside Deep Canyon, Coachella Valley. 91 Comment
  POM12209  Dryopteris arguta P. A. Munz 1922-4-28 5037 Riverside Leach Canyon, Santa Ana Mts. 610 Comment
  RSA523531  Dryopteris arguta Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 3990 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  POM20020  Dudleya lanceolata Mary F. Spencer 1923-8-7 2200 Riverside Fern Valley 1677 Comment
  RSA590724  Dudleya multicaulis R. E. Riefner 1996-5-16 96 -72 Riverside East side of Temescal Wash, community of El Cerrito Comment
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Jul 13 2010
  POM182211  Dudleya saxosa subsp. aloides P. A. Munz 1932-4-24 12396 Riverside San Jacinto Mountains: Snow Creek Canyon 457 Comment
  RSA201898  Dudleya saxosa subsp. aloides W. L. Jepson 1914-05 6011 Riverside W slope beyond Pinyon Well, N of Indio, Lookout Mt. Comment
  SD158318  Dudleya saxosa subsp. aloides Bill Knerr 1999-6-6 Riverside Among rocks in full sun on south-facing roadcut, Rancho California Road 2 miles west of Temecula 456 Comment
  UCR24174  Dudleya saxosa subsp. aloides John C. Roos, Lucille Roos 1949-4-23 4285 Riverside Sonoran (Colorado) Desert, Eagle Mtns., Munsen Canyon Comment
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Apr 24 2011
  RSA0016840  Dudleya saxosa subsp. aloides E. R. Blakley 1993-5-20 7658 Riverside Pinto Mountains, E of White Tank Campground, Joshua Tree National Monument. 762 Comment
  SEINET8060016 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 8 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  JOTR31007  Echinocereus triglochidiatus La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1292 Riverside Joshua Tree National Park. Stop 5: Hexie Mountains, steep gravel slopes above north side of Blue Cut Gorge Comment
  UCR37454  Eclipta prostrata Steve Boyd 1981-5-15 s.n. Riverside Peninsular Range, Gavilan Hills, confluence of the major drainage off the west slope of Estelle Mountain with Temescal Wash 320 Comment
  SEINET11987369  Elatine californica R. F. Thorne 1969-1 37967 Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California 625 Comment
  RSA0108752  Elatine chilensis R. F. Thorne, E. W. Lathrop 1969-5-19 37968 Riverside Santa Rosa Plateau: margin of N end of large vernal marsh, Mesa de Colorado, Rancho California. 624 Comment
  CAS-BOT-BC112767  Eleocharis macrostachya Philip Alexander Munz; Ivan Murray Johnston 1922-5-18 5323 Riverside 1/2 mile south of Lake Elsinore, mud flat. Comment
  HSC46428  Eleocharis macrostachya Christopher Davidson 1977-5-25 5647 Riverside Mesa de Burro, Santa Rosa Plateau area of Santa Ana Mtns. 701 Comment
  RSA365450  Eleocharis montevidensis var. montevidensis Christopher Davidson 1977-5-25 5647 Riverside Mesa de Burro, Santa Rosa Plateau area 701 Comment
  RSA741220  Eleocharis palustris Scott D. White, Justin M. Wood 2008-6-5 12087 Riverside Garner Valley: Hwy 74 at Thomas Mountain Rd. - SW corner of junction. 1326 Comment
  RSA289841  Eleocharis parishii B. A. Prigge 1980-9-17 4073 Riverside Coachella Valley Stormwater Channel: E of Munroe St., Indio. -3 Comment
  UC839229  Eleocharis parishii Ivan Johnston 1917-4-4 Riverside Palm Canyon Southern California, Colorado Desert Comment
  CDA20777  Eleusine indica M. Lahti 2006-9-18 PDR 1357285 B Riverside Island Growers, Anza Rd., Temecula. In Ivy stock containers. Widespread weed in nursery, but not particularly common. 0 Comment
  SD28117  Elymus glaucus subsp. glaucus Carl B. Wolf 1932-8-5 3942 Riverside San Jacinto Mountains, along trail from Tahquitz Valley to San Jacinto Peak. 2621 Comment
  UCR164281  Elymus triticoides S. J. Myers 2001-7-16 s.n. Riverside San Jacinto Mtns, Bautista Canyon 878 Comment
  OBI32762  Emmenanthe penduliflora Richard L. Irwin 1962-4-21 39 Riverside Beneath center of Crestomore Rd bridge over Santa Ana River and ca 100 ft W 244 Comment
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Aug 24 2013
  POM13111  Emmenanthe penduliflora P. A. Munz, I. M. Johnston 1922-5-19 5343 Riverside 8 miles NE of Murietta. 412 Comment
  SD4049  Emmenanthe penduliflora Edmund Jaeger 1925-5-2 Riverside Kyes water Canyon, Box Springs Mountains. 579 Comment
  UCR178001  Emmenanthe penduliflora S. J. Myers, John Green 2003-4-4 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  SEINET12271279  Emmenanthe penduliflora Unknown 1942-1 1608 Riverside Burn, 1 mi W of Pinon Flats (California Highway 74) Comment
  CLARK-A1528-203  Encelia californica B. Day 1952-2-6 Riverside Comment
  UCR120204  Encelia californica Mitch Provance 1998-3-5 196 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  CAS-BOT-BC131316  Encelia farinosa Marian L. Campbell 1921-3-29 71 Riverside Palm Springs Comment
  CAS-BOT-BC131328  Encelia farinosa Steve Boyd; S. Meury; R. Noyes; L. Arnseth; D. Nordin; T. Ross 1988-3-10 2127 Riverside N. end Palen Mtns, 2 mi west of Palen Pass 300 Comment
  UC1118070  Encelia farinosa R. St. John 1929-3-25 16 Riverside e of Cabezon Peak; San Jacinto 457 Comment
  UCD131200  Encelia farinosa Nancy Ryan Zabriskie 1969-4-1 173 Riverside Andreas Canyon, near Palms Springs. 152 Comment
  UCR83194  Encelia farinosa A. C. Sanders 1994-5-15 14483 Riverside Mount Rubidoux, a rocky granitic hill on the NW side of Riverside on the E bank of the Santa Ana River 400 Comment
  CAS-BOT-BC131425  Encelia frutescens Roxana S. Ferris; Rimo Bacigalupi 1958-3-19 13228 Riverside Rice-Desert Center road, at intersection of San Bernardino-Riverside county line Comment
  UC1281332  Encelia frutescens H. E. McMinn 1935-6-27 4041 Riverside between Anza and Palms to Pines Highway Comment
  SEINET10616295  Encelia frutescens Billy Joe Cox 1975-4-23 Cox 4126 Riverside Palo Verde, 1-3 km. W, (ca. 32 mi. S of Blythe). Riverside-Imperial Counties. 70 Comment
  JEPS49123  Ephedra W. L. Jepson 1928-4-23 12566 Riverside Cottonwood Spring Colorado Desert, Eagle Mts., Cottonwood Spring 731 Comment
  SEINET3406122 Image available Ephedra R. F. Thorne, M. Z. Thorne 1973-3-30 42689 Riverside Colorado Desert; Little San Bernaardino Mountains region; Morongo Valley Canyon, near mouth at junction of roads to Morongo Valley and Desert Hot Springs. 488 Comment
  CHSC99338  Ephedra aspera LeRoy Gross; Leland Lubinsky, Victor Steinmann, Linda Worlow 2005-2-17 1434 a Riverside Colorado Desert; Chocolate-Chuckwalla Mountains Region: Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. Near 33 37' 32'N, 115 19' 35'W: UTM 3721895N, 655238E Elevation 1574 feet to 33 36' 52'N, 115 19' 54'W: UTM 3720669N, 654757E. Elevation 1800 feet. General collecting along canyon bottom and slopes. 514 Comment
  CAS-BOT-BC81546  Ephedra californica Lewis S. Rose 1955-3-14 55028 Riverside [Whitewater] White Water Wash, 3 mi. se. of Palm Springs Station 304 Comment
  CAS-BOT-BC81548  Ephedra californica Philip A. Munz 1940-3-22 15656 Riverside [Whitewater] White Water Canyon, 2 miles north of Banning-Indio boulevard Comment
  HSC66449  Ephedra californica Christopher Davidson, B. Gustafson 1977-4-7 5575 Riverside Whitewater Canyon Rd., (exit from Interstate-10 ca. 2.5 mi. W of jct I-10 with State 62. Near Start of Angeles [actually Pacific] Crest Trail. Hillside, N slope 610 Comment
  JOTR32656  Ephedra californica La Doux, Tasha, M. Bell, A. Holt, A. Miller, K. Matthews 2007-5-23 1338 Riverside Joshua Tree National Park. where Queen Valley meets Pleasant Valley, just north of Malapai Hill; open bajada with pediments, near Geology Tour Road 1219 Comment
  LA6775  Ephedra californica LeRoy Abrams; 1903-4-6 3204 Riverside Palm Springs Comment
  RSA336038  Ephedra californica Robert F. Thorne, W. Wisura, A. Shmida, R. Whittaker 1978-4-23 52035 Riverside Chino Canyon Comment
  NY70797  Ephedra viridis R. F. Thorne 1967-3-21 41639 Riverside Joshua Tree National Monument: Cottonwood Springs 914.4 Comment
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Oct 9 2010
  RSA740252  Epilobium brachycarpum Scott D. White, Justin M. Wood 2008-7-9 12406 Riverside San Jacinto Mountains: Johnson Meadow. 1415 Comment
  CAS-BOT-BC171744  Epilobium canum subsp. latifolium H. M. Hall 1897-7-17 694 Riverside Strawberry Valley, San Jacinto Mountains Comment
  POM262500  Epilobium canum subsp. latifolium R. Cooper 1941-11-11 s.n. Riverside Chino Canyon, San Jacinto Mountains. Comment
  UCR178160  Epilobium ciliatum John F. Green, M. D. Wilcox 2003-7-15 s.n. Riverside San Jacinto Mtns., on powerline trail, picnic area at Juan Diego Flats, NW of Cahuilla Mountain 1220 Comment
  UCR193124  Epilobium densiflorum A. C. Sanders, Tim Thomas 2008-6-20 35533 Riverside Peninsular Range; San Jacinto Mtns., May Valley near Fleming Ranch, north of Bonita Vista Rd. and east of Herkey Creek 1550 Comment
  RSA584941  Epilobium pygmaeum Steve Boyd, Dave Bramlet 1991-5-13 6235 Riverside Winchester Valley between Winchester and Hemet along upper Salt Creek drainage. N of Santa Fe RR tracks, W of San Diego aqueduct. Comment
  UC455182  Epipactis gigantea I. J. Condit 1910-6-24 Riverside San Jacinto Mts.; near spring 914 Comment
  CAS-BOT-BC204486  Eragrostis cilianensis J. C. Roos 1965-7-7 s.n. Riverside San Jacinto Comment
  POM310568  Eragrostis cilianensis Hulda Crooks 1945-10-1 1100 Riverside San Bernardino. Warm Creek. Comment
  CAS-BOT-BC204533  Eragrostis curvula S. Morgan 1992-7-27 92 -7 Riverside UCR campus. In the Latin American section of the UCR Botanical Garden; garden quad. F-4 Comment
  RSA719075  Eremalche exilis Michael Honer 2005-3-18 2091 Riverside Palen Valley; appx. 3 mi. due E of Desert Center Airport. 134 Comment
  RSA782085  Eremalche rotundifolia Duncan S. Bell 2009-3-7 2 Riverside Arica Mountains: east side of mountain range, approximately 1.7 air miles west of Priest Well. 431 Comment
  SD113835  Eremalche rotundifolia Darley F. Howe 1952-4-28 2197 Riverside Box Canyon, east of Mecca. Comment
  UCR162890  Eriastrum A. C. Sanders, K. C. Rose 1995-4-5 16383 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  RSA0105463  Eriastrum densifolium subsp. austromontanum P. A. Munz, E. K. Balls 1952-8-21 17982 Riverside Road, Vandeventer Flat to Santa Rosa Peak 2072 Comment
  RSA0105460  Eriastrum densifolium subsp. austromontanum Mary F. Spencer 1921-6-30 1190 Riverside Idyllwild. San Jacinto Mountains. 1616 Comment
  RSA0105459  Eriastrum densifolium subsp. elongatum N. C. Cooper 1944-7-15 1579 Riverside Palms to Pines Highway, San Jacinto Mountains. 1280 Comment
  UCR252812  Eriastrum densifolium subsp. sanctorum Ana Hernandez, Angela Collada 2013-6-12 046 Riverside Santa Ana River, between Market Street and Mission Blvd 245 Comment
  SEINET3087419 Image available Eriastrum sapphirinum B. Pitzer 1986-5-24 232 Riverside Whitewater Canyon, ca. 5 mi N of Hwy I-10 on Whitewater Canyon Road. From N edge of hatchery to ca. 0.25 mi N of hatchery boundary. 7.5' quad. 732 Comment
  UCR3494  Eriastrum sapphirinum Frances Miller 1964-5-20 M 6460 Riverside N Peninsular Range/San Bernardino Valley, base of Box Springs Mtns., 1/4 mi north of end of Big Springs Rd, above RR 366 Comment
  UCR34959  Ericameria cuneata L. B. Ziegler 1964-10-1 042 Riverside San Jacinto Mtns, Garner (Hemet) Valley, vicinity of Kenworthy 1418 Comment
  POM350409  Ericameria cuneata var. spathulata Jack Rempel, Erwin H. Miller 1934-4-28 18726 Riverside Lost Horse 1296 Comment
  JOTR30242  Ericameria linearifolia Leary, C. and Leary, Pat 1979-5-5 2990 Riverside Joshua Tree National Park. Above Lower Covington Flat, Joshua Tree N.M., T2S R7E sec 6. 1676 Comment
  POM359409  Ericameria linearifolia Mark Morris 1929-3-17 14925 Riverside Palm Canyon. Comment
  UC527316  Ericameria linearifolia C. B. Wolf 1931-5-11 Riverside rocky ridges above Pipe Creek (above Hemet Valley); San Jacinto Mts. 1676 Comment
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Mar 24 2011
  SD68978  Ericameria pachylepis E. W. Lathrop 1965-10-24 6024 Riverside 8 miles west of Murrietta. 609 Comment
  UCR92391  Ericameria palmeri var. pachylepis F. M. Reed 1925-1 5144 Riverside South Coast; San Bernardino Valley, Riverside: mesa on Arlington Heights (Lincoln Heights) 396 Comment
  JOTR33713  Ericameria paniculata La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-10-13 1002 Riverside Joshua Tree National Park. eastern edge of Cottonwood Mountains in Cottonwood Canyon; large active wash in rocky canyon along roadside east of Rte. 11 839 Comment
  UC64808  Ericameria paniculata E. E. Schellenger 1904-10-19 19 Riverside Colorado Desert, Chuckwalla Bench Comment
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Jan 15 2017
  UCR174943  Ericameria paniculata Jennifer H. Jones, Toby Bartels 2006-4-23 281 Riverside Transverse Ranges; San Bernardino Mtns., Banning Pass, NE of Cabazon along powerline road and in Deep Canyon 744 Comment
  RSA741266  Ericameria parishii Scott D. White, Justin M. Wood 2008-7-10 12453 Riverside San Jacinto Mountains: Fobes Spring 1500 Comment
  SD144047  Ericameria pinifolia A. C. Sanders, T. Tennant 1997-11-14 21604 Riverside San Bernardino Mtns.: Morongo Indian Reservation, Hathaway Canyon. 854 Comment
  RSA0125177  Erigeron canadensis Duncan S. Bell 2016-10-27 10210 Riverside Whitewater Canyon area; collecting in Rainbow Canyon, 2.75 air miles northwest of the Whitewater Ranger Station (trout ponds). 1024 Comment
  SDSU12964  Erigeron canadensis Michael G. Simpson with Claudia A. Luke 1999-10-27 2016 Riverside Adjacent to Santa Margarita river, Santa Margarita Ecological Reserve, San Diego State University, ca.1/4 mile from Southside Facilities. 152 Comment
  UC63357  Erigeron divergens F. Gilman 1902-1 25 Riverside Palm Springs Comment
  UCR112311  Erigeron foliosus A. C. Sanders, Mitch Provance, T. B. Salvato 2000-6-1 23447 Riverside Menifee Valley, S of Newport Rd., north of Holland Rd. and east of Bradley Rd., 2 miles due east of Railroad Canyon Lake 488 Comment
  UCR167831  Erigeron foliosus T. B. Salvato, Melissa Clemons 2005-6-2 1336 Riverside Peninsular Range; Temescal Valley, Gavilan Hills, c. 0.5 mi SE of Steele Peak, 4 miles SW of Perris, and 6 miles NNE of Lake Elsinore, NW of Hwy 74 610 Comment
  JEPS20081  Erigeron foliosus var. foliosus Peter H. Raven with R. Snow 1957-7-26 11083 Riverside 6.5 mi n of road to Twin Pines Ranch (Banning-Idyllwild road); San Jacinto Mountains Comment
  RSA736706  Erigeron foliosus var. foliosus Scott D. White 2004-4-26 10243 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Indian Creek Watershed. 518 Comment
  CLARK-A1528-219  Erigeron foliosus var. stenophyllus R. P. Sunderman 1968-5-6 10 Riverside Riverside 365 Comment
  CDA2092  Eriochloa contracta T. C. Fuller 1962-10-3 9702 Riverside Palo Verde Valley. Northwest corner of Neighbors Blvd. & Avenue 22, 1.4 miles north of Ripley. 0 Comment
  UCD65739  Eriochloa contracta Edward G. Wegenek 1970-8-24 Riverside Southeastern part, collected in the Blythe area. Comment
  CAS-BOT-BC226800  Eriodictyon crassifolium A. C. Sanders; T. B. Salvato 2012-4-27 40091 Riverside Peninsular Range; Santa Ana Mtns. Region: Temescal Canyon, along Temescal Canyon Rd. east of I-15 crossing and mouth of Mayhew Cyn. 313 Comment
  RSA161231  Eriodictyon crassifolium Peter H. Raven 1959-4-23 14017 Riverside 1.2 miles west of Dripping Springs. Comment
  RSA455025  Eriodictyon crassifolium E. C. Jaeger 1921-6-8 s.n. Riverside McMullen Trail [Banning to McMullen Flat], north slope San Jacinto Mts Comment
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Nov 5 2011
  RSA456545  Eriodictyon crassifolium L. B. Ziegler 1969-7-1 s.n. Riverside Near Morris Ranch, Hemet Valley, San Jacinto Mtns. Comment
  SDSU6018  Eriodictyon crassifolium Wende E. Rehlaender 1983-5-28 Riverside Santa Rosa Mountains. Along Highway 74 near turnoff for Ribbonwood Dr. about 19 miles along road from Palm Desert; about 3 miles. NW of Santa Mountain. Common, with Salvia, Adenostoma fasciculatum, A. sparsifolium, Eriogonum fasciculatum. Comment
  RSA0056443  Eriodictyon crassifolium var. crassifolium Norman C. Cooper 1944-5-6 1170 Riverside Banning. 701 Comment
  UCR241663  Eriodictyon trichocalyx T. B. Salvato, Jeffrey Ross 1998-6-9 MOR- 331 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Lion Canyon up to fork in stream 720 Comment
  UCR42550  Eriodictyon trichocalyx B. G. Pitzer 1986-4-26 0188 Riverside San Bernardino Mtns., Whitewater Canyon, c. 4.5 mi. north of Hwy I-10 on Whitewater Canyon Road 734 Comment
  CAS-BOT-BC248631  Eriogonum apiculatum James L. Reveal; Caroline G. Reveal 1972-8-9 2860 Riverside San Jacinto Mountains, along California Highway 243, 4.2 miles north-northwest of Idyllwild, 8.7 miles north of the junction with Highway 74, and 1.2 miles south of Alandale Ranger Station Comment
  SEINET6340538  Eriogonum davidsonii B. Thomas 1967-10-22 346 -83 Riverside Fulmar lake, 8 miles N of Idyllwild, of Co. Rd. R-1 1829 Comment
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Nov 8 2015
  UCR26621  Eriogonum davidsonii E. W. Lathrop 1966-5-29 6392 Riverside Peinsular Range; Santa Ana Mtns, Cleveland National Forest, Main Divide Truck Trail between El Carriso and Santiago Peak 1223 Comment
  UCR35100  Eriogonum davidsonii L. B. Ziegler 1964-7-20 32 Riverside San Jacinto Mountains, Garner (Hemet) Valley Comment
  SEINET11932637  Eriogonum davidsonii J. F. Emmel 1979-1 694 Riverside SE end Jacinte Mts S base of Sugarleaf Mt. near SE end of Pinyon Flat 1219 Comment
  CHSC8078  Eriogonum deflexum Edward L. Smith 1958-3-22 396 Riverside Located 6 mi. s of Rice, near Priest's Well. Little Santa Maria Mts. 365 Comment
  CAS-BOT-BC256127  Eriogonum deflexum var. deflexum Annie M. Alexander; Louise Kellogg 1941-5-28 2264 Riverside 2 miles east of Shaver Summit, Colorado Desert Comment
  RSA770419  Eriogonum elongatum Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4882 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010. 750 Comment
  RSA772961  Eriogonum elongatum Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4771 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  GMDRC5485  Eriogonum fasciculatum var. flavoviride J. Andre 2012-4-11 20827 Riverside Little San Bernardino Mountains: western margin of Eagle Mtns, along road to Cottonwood Spr (Utah Trail), 0.6 mi. south of Cottonwood Visitor Ctr. 913 Comment
  UCR22011  Eriogonum fasciculatum var. foliolosum Steve Boyd 1980-5-11 230 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, northwest corner of the Gavilan Plateau. East of trailer park, east side of Gavilan Road 625 Comment
  CAS-BOT-BC167187  Eriogonum fasciculatum var. polifolium Mitch Provance; Kerry Knudsen; Petra Wester 2004-5-8 9005 Riverside Santa Rosa Mountains: Along Hwy 74 on the Santa Rosa Mountain Grade, ca. 0.8-0.5 mi NE of Black Hills 854 Comment
  LA206785  Eriogonum fasciculatum var. polifolium A. M. Johnson; 1932-8-18 4133 Riverside San Jacinto Mountains, along road, down Banning side Comment
  RSA393341  Eriogonum fasciculatum var. polifolium H. de Forest 1933-4-17 s.n. Riverside Chino Canyon, Colorado Desert. Comment
  RSA650857  Eriogonum fasciculatum var. polifolium R. Garner 1975-8-15 s.n. Riverside San Jacinto Mts Comment
  RSA751631  Eriogonum fasciculatum var. polifolium G. Gust, L. Nye 2005-3-11 543 Riverside Lake Elsinore City Limits. Hwy 74 ca. 1-2 miles W of lake Elsinore on hill slope pullout. 481 Comment
  SD136782  Eriogonum gracile Steve Boyd 1994-10-14 8379 Riverside San mateo Canyon Wilderness Area of the Cleveland National Forest. Fisherman's Camp Trail (7S02) from Wildomar Road (7S01) west into Tenaja Canyon at its confluence with San Mateo Canyon, NW/4 sec 28 462 Comment
  UCR261191  Eriogonum gracile A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-5-18 41719 Riverside Esinore, large vacant lot NW of Hwy 74 and SW of the intersection of 74 and Collier Ave. 386 Comment
  POM153369  Eriogonum gracile var. gracile P. A. Munz, I. M. Johnston 1928-9-12 11256 Riverside Temescal Canyon. Comment
  SD136783  Eriogonum gracile var. gracile Steve Boyd 1994-10-14 8382 Riverside San Mateo Canyon Wilderness Area of the Cleveland Nartional Forest. San Mateo Canyon at the confluence with Bluewater Canyon 328 Comment
  UCR166711  Eriogonum gracile var. gracile Scott D. White 2005-7-6 11158 Riverside San Jacinto Mtns/Sonoran/Colorado Desert, San Gorgonio Pass: Cabazon. Toeslope of the San Jacinto Mtns and adjacent fan west of San Gorgonio River, south of the I-10 Fwy 610 Comment
  POM153380  Eriogonum gracile var. incultum P. A. Munz, I. M. Johnston 1928-9-12 11251 Riverside Temescal Canyon. Comment
  RSA5160  Eriogonum inflatum var. inflatum Carl B. Wolf 1932-4-26 2971 Riverside Colorado Desert: 5 mi. E of Mecca on Blythe rd. 30 Comment
  SBBG25142  Eriogonum inflatum var. inflatum D. Myrick 1966-4-1 1321 Riverside Desert Hot Springs, adjoining Linda Vista Lodge Comment
  RSA4967  Eriogonum maculatum Carl B. Wolf 1932-4-27 3031 Riverside Colorado desert, 3/4 mile west of Utopia on Mecca-Blythe road 152 Comment
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Dec 11 2011
  RSA785068  Eriogonum maculatum Anna Kostikova, Glenn Litsios, Sarah Burgy, Steve Boyd 2010-6-20 76 Riverside Belvedere road, turn from Hwy 74, uphill towards white rocks. Comment
  UCR175175  Eriogonum maculatum Jim Andre 2006-4-26 6767 Riverside South Mojave Desert, Joshua Tree National Park: Long Canyon, c. 2.3 mi south of the NE corner (boundary) of the park 1056 Comment
  UC519989  Eriogonum molestum Louis C. Wheeler 1931-10-2 178 Riverside Hemet-Idyllwild road San Jacinto Mts. 1371 Comment
  UCR50885  Eriogonum nidularium A. C. Sanders 1988-5-11 7808 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal, east of the gasline road from Niland 549 Comment
  RSA78311  Eriogonum parishii P. A. Munz, E. K. Balls 1952-8-21 17983 Riverside Road, Vandeventer Flat to Santa Rosa Peak. 2073 Comment
  LA207002  Eriogonum plumatella Carl B. Wolf; 1932-10-11 4283 Riverside Morongo Wash at San Bernardino County Line 731 Comment
  RSA314633  Eriogonum pusillum Robert F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55429 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  CAS-BOT-BC253023  Eriogonum reniforme John Thomas Howell 1931-6-5 6654 Riverside 1 mile east of Whitewater Comment
  CAS-BOT-BC263512  Eriogonum thomasii H. L. Mason 1928-3-10 4190 Riverside White Water River Comment
  SBBG89124  Eriogonum thomasii A. C. Sanders 1988-5-11 7811 Riverside Chocolate Mtns, Iria Pass area; 12 mi above the Coachella Canal in a wash E of the gasline rd from Niland 548 Comment
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Sep 10 2011
  SEINET3160073  Eriogonum thomasii G. B. Grant 1906-5-1 440 -6741 Riverside on Colorado desert at Palm Springs Comment
  UC1032238  Eriogonum thomasii H. S. Yates 1937-3-23 6410 Riverside 3 mi n Palm Springs; San Jacinto Quadrangle Comment
  RSA424980  Eriogonum thurberi Ora M. Clark 1929-3-16 1712 Riverside N. of Whitewater. Comment
  UCR160283  Eriogonum thurberi A. C. Sanders 1990-5-21 10022 Riverside San Jacinto Valley, Sanderson Ave. near Gilman Springs Rd., NW of San Jacinto 457 Comment
  RSA423140  Eriogonum wrightii var. nodosum N. R. Zabriskie, Walter Zabriskie 1970-11-1 330 Riverside Andreas Canyon area, east slope San Jacinto Mountains. 427 Comment
  UCR13720  Eriogonum wrightii var. nodosum N. R. Zabriskie, W. W. Zabriskie 1970-11-1 330 Riverside Western Colorado Desert/ San Jacinto Mtns, Andreas Canyon area, E slope of San Jacinto Mtns. 427 Comment
  CAS-BOT-BC297334  Eriophyllum confertiflorum Louis C. Wheeler 1931-10-4 217 Riverside Hemet - Idyllwild Rd, San Jacinto Mts 1402 Comment
  JOTR33939  Eriophyllum confertiflorum var. confertiflorum La Doux, Tasha, M. Harding, M. Wheeler, and J. Harding 2010-6-2 2828 Riverside Joshua Tree National Park. Little San Bernardino Mountains, NW of Key's View and Inspiration Peak; bouldery outcrops along ridge line heading toward Juniper Flats Comment
  UCR29852  Eriophyllum lanosum George K. Helmkamp 1983-3-24 383- 4 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at junction of the Graham Pass and Chuckwalla Springs Roads 229 Comment
  RSA203060  Eriophyllum multicaule James Henrickson 1967-4-30 2462 Riverside 2 miles N of Lake Elsinore. 396 Comment
  RSA512161  Eriophyllum multicaule Ed LaRue 1989-5-4 s.n. Riverside 2 mi (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; At McViker Canyon. 488 Comment
  RSA612816  Erodium brachycarpum D. L. Banks 1997-3-1 1353 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. Pechanga Creek, east of the ''Fiesta Grounds'' to the spring on the northern fork of Pechanga Creek at the eastern end of the Reservation. 423 Comment
  RSA0013157  Erodium cicutarium LeRoy Gross, Caitlin Elam 2013-5-14 6064 Riverside Garner cattle company (Garner ranch), east of Lake Hemet, and highway 74. West of the ranch's buildings. North of the road to the buildings, and south of the old landing strip. 1332 Comment
  RSA701047  Erodium cicutarium Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11296 Riverside Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. 570 Comment
  RSA0130727  Erodium texanum Glen Rink 2013-3-18 11877 Riverside About twelve miles west of Blythe, at the site of the proposed Quartzite solar power plant. 105 Comment
  POM17831  Erysimum capitatum var. capitatum P. A. Munz, D. D. Keck 1923-6-14 7067 Riverside Santa Ana Mountains: Glen Ivy Trail to Santiago Peak. 1463 Comment
  UCD115010  Erysimum capitatum var. capitatum R. L. Smith 1948-3-25 s.n. Riverside 5 miles north of March Field. Comment
  UCR24925  Erysimum capitatum var. capitatum A. C. Sanders 1980-7-18 1651 Riverside San Jacinto Mtns., Thomas Mountain: Thomas Mountain Campground to the summit at the lookout 2073 Comment
  SD134372  Erythranthe breweri Craig Reiser 1992-5-9 Riverside San Jacinto Mountains, Thomas Mountain Comment
  RSA0020246  Erythranthe floribunda Jenkins, Street 1917-5-30 s.n. Riverside San Jacinto Canyon. Comment
  RSA0019317  Erythranthe guttata G. R. Campbell 1951-5-30 16146 Riverside Canyon above meadow, Pine Meadow Ranch, southeast of Kenworthy. Comment
  CAS-BOT-BC154055  Eschscholzia californica Jun Hu 2000-5-11 22 Riverside San Jacinto Valley: SE of city of Winchester, Hills N of Diamond Valley 488 Comment
  RSA524220  Eschscholzia californica Steve Boyd, Tim S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4014 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  UCR91922  Eschscholzia californica A. C. Sanders, O. F. Clarke 1996-4-13 18032 Riverside Riverside: Box Springs Mtns, crest of range in vicinity of park headquarters, head of Two Trees Canyon 700 Comment
  RSA0023136  Eschscholzia minutiflora Anstruther Davidson 1893-04 s.n. Riverside Palm Springs. Comment
  CAS-BOT-BC419625  Eschscholzia parishii John Thomas Howell 1928-3-25 3539 Riverside Painted Canon [Canyon], Colorado Desert Comment
  CAS-BOT-BC419629  Eschscholzia parishii Annie M. Alexander; Louise Kellogg 1941-5-14 2169 Riverside 5 mi. So. Cottonwood Spring 502 Comment
  SEINET10904736  Eschscholzia parishii David B. Dunn, Dhogo; Schroeder, (UMO); Bruskin; A. Folsom 1948-3-14 Dunn 3753 Riverside Found in wash above quad 6. Indio hills, colorado desert. Near pushawalla. Comment
  UCR113730  Eucalyptus rudis Mitch Provance 2000-7-30 2168 Riverside Jurupa Mountains, NW Jurupa Mtns; SW of the E extreme of Philadelphia St. 305 Comment
  CSUSB109  Eucrypta chrysanthemifolia K. S. Gill 1965-4-18 Riverside On UCR campus 243 Comment
  HSC92877  Eucrypta chrysanthemifolia Karen Kirtland 1993-4-17 Riverside Hills N of Temecula Comment
  POM145350  Eucrypta chrysanthemifolia var. bipinnatifida J. B. Feudge 1927-3-22 1849 Riverside Palm Springs 183 Comment
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Nov 12 2011
  SEINET3409352  Eucrypta micrantha G. Rink, T. Thomas 2013-3-30 11921 Riverside About 3 miles east of Desert Center 210 Comment
  JOTR38694  Eulobus californicus Hodges, Stephen R. 2017-2-7 710 Riverside Joshua Tree National Park. Little San Bernardino Mountains, West Deception Canyon, near the mouth of the canyon just north of the park boundary Comment
  POM2677  Euphorbia lathyris Jenkins, L. T. Street 1956 Riverside San Jacinto River Canyon. Comment
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Mar 1 2014
  UCR111584  Euphorbia maculata Mitch Provance 1999-1-23 1742 Riverside Jurupa Mountains, Along roadside at corner of Crestmore Rd. and Rubidoux Blvd. 262 Comment
  RSA543151  Euphorbia melanadenia Steve Boyd 1991-3-17 5516 Riverside Jurupa Hills, N of Glen Avon. Cove on S flank, just W of Soto St. from white limestone outcrops to summit E of Pyrite Canyon. Comment
  UCD77526  Euphorbia micromera Robert E. Preston 1997-11-11 1060 Riverside east edge of Palo Verde Mesa. 99 Comment
  RSA314623  Euphorbia misera R. F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55410 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  UCD142705  Euphorbia polycarpa G. L. Webster; R. Hildreth 1966-12-10 7471 Riverside Deep Canyon, S of Palm Desert. 426 Comment
  UCR166022  Euphorbia polycarpa Nathan Moorhatch 2005-2-17 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, east edge of Santa Rosa Mtns., La Quinta, west of Washington St., between Ave. 48 and Lake La Quinta Dr., 4 acre parcel 37 Comment
  UCR172248  Euphorbia polycarpa John F. Green 2006-5-2 s.n. Riverside Peninsular Ranges, City of Temecula, Immediately N and south of Murrieta Hot Springs Road along San Diego Aqueduct right-of-way 396 Comment
  UCR264244  Euphorbia polycarpa A. C. Sanders, Jim Malusa 2015-9-10 41852 Riverside Sonoran (Colorado) Desert, Salt Creek Canyon, along Summit Road c. 1.5 miles above mouth of Red Canyon, edge of Chocolate Mountains Aerial Gunnery Range 433 Comment
  POM184158  Euphorbia polycarpa var. appendiculata M. French Gilman 1932-3-30 2 Riverside Palm Springs. Comment
  UCR89707  Euphorbia setiloba J. M. Stewart 1990-10-28 667 Riverside Sonoran/Colorado Desert, canyon on south side of Orocopia Mtns. Comment
  RSA356989  Euphorbia spathulata R. F. Thorne 1973-5-23 43862 Riverside Santa Rosa Plateau: Mesa de Colorado. 610 Comment
  RSA561782  Euphorbia spathulata Steve Boyd 1992-4-14 6846 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area; Western flank of Bluewater Canyon along Bluewater Trail. 341 Comment
  RSA604410  Eustoma exaltatum Louis C. Wheeler 1932-9-4 1338 Riverside Santa Ana River at Chino Creek 183 Comment
  RSA612273  Eustoma exaltatum Louis C. Wheeler 1933-8-13 2078 Riverside Santa Ana River at Chino Creek. 152 Comment
  POM320335  Euthamia occidentalis Patricia Wilder 1970-10-30 4827 Riverside Prado Flood Control Basin east of Prado Dam. East of Chino Hills, Santa Ana River Drainage Area 152 Comment
  UCR265846  Euthamia occidentalis Mitch Provance 2013-4-8 413- 03 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CAS-BOT-BC167367  Fagonia laevis Peter H. Raven 1958-1-23 11433 Riverside Desert alluvial fan of Fargo Canyon Comment
  LA209843  Fagonia laevis Martha Hilend; 1932-3-25 sn Riverside Chuckawalla Mountains, about 3 mi. above Corn Springs Comment
  POM10036  Fagonia laevis Charlotte M. Wilder 1907-4-9 778 Riverside border of warsh from Palm Canyon. Colorado Desert Comment
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Mar 12 2011
  UC963827  Fagonia laevis Helen K. Sharsmith 1952-4-11 4062 Riverside nw base Chuckwalla Mountains (7 mi s of Highway 60-70); Colorado Desert 533 Comment
  UCR250113  Fagonia laevis A. C. Sanders, Clint Shock, Jose Aguiar 2014-3-6 40965 Riverside Sonoran (Colorado) Desert, along Box Canyon road c. 2.6 miles SW of I-10 junction, above the head of Box Canyon 435 Comment
  VVC1721  Fagonia laevis Jim Andre, T. La 2009-3-10 s.n. Riverside Colorado Desert, Joshua Tree Natl. Park; south end of the Cottonwood Mtns near Pinkham Wash just N of aquaduct just inside JTNP boundary, approx 7 mi W of S entrance into park at Cottonwood. 542 Comment
  OBI53020  Fagonia pachyacantha Kathleen Keil 1993-3-27 s.n. Riverside 18 mi W of Chiriaco Summit along I-10 Comment
  CDA22198  Fatoua villosa A. C. Sanders 2004-8-1 28766 Riverside Perris-Aguanga Region; 3 miles ENE of Perris, new nursery growing grounds W of Menifee Rd. (=Pozos Av.) & S of Nuevo Rd., between San Jacinto River and Nuevo. Comment
  RSA303553  Ferocactus cylindraceus J. R. Shevock 1972-3-5 1370 Riverside Jeep Road, Anza to Borrego Springs. 305 Comment
  UCR154823  Festuca myuros A. C. Sanders, Kelly Volansky 2005-3-17 29225 Riverside Perris-Aguanga Basin Region, French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., c. 0.5 mi. NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  UCR225580  Festuca myuros A. C. Sanders, T. B. Salvato 2011-3-29 38869 Riverside Peninsular Range; Perris-Aguanga Basin Region, between Sun City and Perris, along powerline corridor 0.45 east of Goetz Rd. and 0.07 km east Wheat St. 450 Comment
  UCR92644  Festuca myuros Steve Boyd 1986-4-2 1626 A Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  UCR177648  Festuca octoflora S. J. Myers, John Green 2003-4-23 s.n. Riverside San Jacinto Mtns., powerline trail on slope above Juan Diego Flats, toward Reed Valley, NW of Cahuilla Mountain 1250 Comment
  SEINET237016 Image available Festuca ovina H. Haid 1969-5-1 Riverside San Jacinto Wilderness; San Jacinto Mtns.: Bautista Canyon, above confluence with Horse Creek (Blackburn Cyn. 7.5 Comment
  CAS-BOT-BC474730  Ficus microcarpa R. E. Riefner, Jr. 2015-8-8 15 -220 Riverside City of Corona, S side of 91 Freeway, ca 120 ft. W of Lincoln St., N side of Corona del Rey Apartments 210 Comment
  RSA522755  Filago californica Steve Boyd, L. Arnseth, Timothy S. Ross 1990-3-29 3862 Riverside Vail Lake area, cinder cone ridge at N side of mouth of Temecula Creek Canyon and adjacent benches on S Flank of Big Oak Mountain. 396 Comment
  UCR116825  Filago californica A. C. Sanders, Mitch Provance, T. B. Salvato 2001-4-6 23926 Riverside Western Colorado Desert, Coachella Valley, Desert Hot Springs, north of intersection of Pierson Blvd. and Atlantic, north of flood control ditch 348 Comment
  NY43292  Fouquieria splendens C. R. Annable 1995-3-11 2269 Riverside Rest stop on I-10 Comment
  SFV2334  Fouquieria splendens F. R. Rickson 1961-3-24 s. n. Riverside About 4 miles west of Desert Center on Highway 60-70. 335 Comment
  RSA0018950  Fragaria vesca Shawn Krosnick, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 693 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  RSA450205  Frankenia grandifolia J. C. Roos 1965-6-30 s.n. Riverside Perris. Comment
  UC63829  Fraxinus velutina H. M. Hall May 17 1901-Jun 1 1901 1859 Riverside e base San Jacinto Mt. 609 Comment
  UCR177657  Fraxinus velutina var. coriacea P. A. Munz, I. M. Johnston 1924-7-29 8866 Riverside San Bernardino Mtns., San Gorgonio Canyon, north of Banning 1372 Comment
  UCR48483  Fritillaria biflora Steve Boyd 1986-4-2 1581 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  RSA3963  Funastrum cynanchoides var. hartwegii C. B. Wolf 1932-4-29 3102 Riverside mesas at Western edge of Maria Mts., eastern Colorado Desert, 20 mi. from Blythe on Rice road. 152 Comment
  UCR281533  Funastrum cynanchoides var. hartwegii Mitch Provance, Matt K. Beyers, John Hazlett 2017-3-30 317- 86 Riverside Temescal Valley, 0.4 miles SE of Horsethief Canyon Rd. and the 15 Fwy. 391 Comment
  POM97113  Funastrum cynanchoides var. hartwegii P. A. Munz 1925-5-20 9845 Riverside Aguanga Valley Comment
  SD161015  Funastrum heterophyllum Virginia S. Moran 2003-5-28 Riverside Peninsular Ranges; Perris-Aguanga Basin region: Wilson Valley Mitigation Bank. Comment
  POM122774  Funastrum hirtellum Marcus E. Jones 1926-2-15 s.n. Riverside Near Indio. Comment
  RSA645641  Funastrum hirtellum Scott D. White 1999-4-20 7278 Riverside Blythe Area: Southern foothills of the Big Maria Mts., northwest of Calif. Hwy. 95, ca. 7 road miles north of Interstate 10 / Intake Blvd. jtn. in Blythe., 33 42 1/2'N, 114 34 91 Comment
  RSA778257  Funastrum hirtellum Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-30 923 Riverside East Mojave Desert region: McCoy Wash, east side of McCoy Mountains, pavement plain, approximately 7 miles north of I-10. 335 Comment
  SBBG45678  Funastrum hirtellum Leota Davidson 1965-5-10 187 Riverside rd to Cottonwood Spring Cmpgrd, ca. 23 mi S of Twentynine Palms, Joshua Tree Nat Monument Comment
  UCR173869  Galium Scott D. White, Pam DeVries 2000-4-25 7730 Riverside Peninsular Ranges/ Perris-Aguanga Basin, Temescal Valley, Corona area: E foothills of the Santa Ana Mtns, just above citrus groves 518 Comment
  SD187471  Galium angustifolium Scott D. White, Angelia Carey 2004-4-16 10185 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent slopes 116 Comment
  UCR277475  Galium angustifolium Mitch Provance 2012-5-22 512- 01 Riverside San Bernardino Mountains, Banning, foothills and alluvial fan near border with Beaumont, NE of the intersection of Highland Springs Avenue and Wilson St. 1067 Comment
  RSA34586  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-5-6 1186 Riverside Banning. 732 Comment
  UCR107397  Galium angustifolium subsp. angustifolium B. G. Pitzer 1997-3-23 2955 Riverside Perris-Aguanga Basin Region, Lakeview Mtns, c. 1 air mi. SSW of Mt. Rudolph, along powerline road 0.3 mi. east of Contour (Juniper Flats) Rd. 610 Comment
  SD67921  Galium parishii Reid Moran 1968-8-3 15349 Riverside on rocky NE slope, ridge 1 mile NW of Toro Peak 2250 Comment
  UCR265819  Galium parisiense Mitch Provance 2012-5-24 512- 10 A Riverside San Gorgonio Pass, Banning, near its border with Beaumont, Smith Creek Wash vicinity, E of Highland Springs Rd., both N and S of W Wilson St. 784 Comment
  CAS-BOT-BC494159  Galium porrigens var. porrigens Valerie Soza; Steve Boyd 2004-6-22 1728 Riverside San Jacinto Mountains, Forest Service Rd 5S13 1463 Comment
  UCD170416  Galium porrigens var. porrigens D. O. Burge 2017-3-12 2223 Riverside Alvin Meadows. 1524 Comment
  UC604957  Galium stellatum var. eremicum Roxana S. Ferris and Ruth P. Rossbach 1938-5-15 9544 Riverside Cottonwood Springs Canyon Comment
  POM173085  Gamochaeta pensylvanica M. French Gilman 1930-10 4 Riverside Banning Comment
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Mar 13 2011
  UCR2432  Gastridium ventricosum F. M. Reed 1907-5-29 1361 Riverside Riverside, along Box Springs Blvd. above Gage Canal Comment
  OBI5886  Gayophytum diffusum subsp. parviflorum Carl B. Wolf 1932-8-5 3932 Riverside Summit of Devil's slide Trl from Idyllwild to Tahquitz Valley, San Jacinto Mts 2438 Comment
  RSA645538  Gazania linearis Scott D. White 1995-7-7 3461 Riverside San Bernardino Basin: City of Riverside, Market St. crossing at [Sta] Ana Riv[er] 244 Comment
  POM305628  Geraea canescens Henry J. Ramsey, Henry J. Ramsey 1937-2-26 871 Riverside Indio. Comment
  SBBG44596  Geraea canescens Leota Davidson 1966-4-3 229 Riverside below Washington Street overpass, Interstate 10, ca. 5.5 mi W of Indio Comment
  UCR167262  Geraea canescens 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
  UCR20774  Geraea canescens A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1311 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
  UCR118398  Gilia A. C. Sanders 1994-5-29 14560 Riverside San Bernardino Mtns., lower Millard Canyon, at first stream crossing on Forest Service Road 2S05, near Bench Mark 2868 850 Comment
  SEINET7063449  Gilia achilleifolia subsp. multicaulis A. G. Vestal 1947-3-30 s.n. Riverside About 4.2 miles west of Sage on the East Benton Road. Tucalota Valley. UTM Zone 11, 501776mE, 3714976mN. (WGS84/NAD83). 556 Comment
  RSA605202  Gilia angelensis A. C. Sanders, G. K. Helmkamp, P. J. MacKay, et al. 1995-3-19 16171 Riverside Coachella Valley: N-facing rocky slope in Chino Canyon along the Palm Springs tram road, 2 miles above Hwy 111 (Palm Canyon Dr.) 490 Comment
  RSA86578  Gilia angelensis Anonymous 1954-4-16 9314 Riverside Floodplain of Temecula Creek just south of town of Temecula. 305 Comment
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Feb 14 2013
  UCR104040  Gilia angelensis George K. Helmkamp 1998-4-3 3083 Riverside Sonoran (Colorado) Desert, West Palm Springs Village area, vic. of Hwy I-10 & Verbenia Ave.; 4 mi. north of Tamarack Rd on Cottonwood Rd. 1280 Comment
  UCR180589  Gilia angelensis Scott D. White, Angelia Carey 2004-4-5 9989 Riverside San Jacinto Mountains, Foothills, north of Valle Vista. Indian Creek Watershed 671 Comment
  UCR214148  Gilia angelensis A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37712 A Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, 0.3 mi NNE (14 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 405 Comment
  UC1563105  Gilia australis Steve Boyd, Tim Ross, and Laurel Arnseth 1989-4-1 3151 Riverside just sw Vail Lake Area dam; Vail Lake Area 487 Comment
  SD140030  Gilia capitata Scott White 1993-4-22 1226 Riverside North Alberhill Ranch, in hills north of Walker Canyon. 487 Comment
  UCR241183  Gilia capitata Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 09 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, lower Hathaway Canyon along Hathaway Canyon Rd. 826 Comment
  UC23359  Gilia capitata subsp. abrotanifolia H. M. Hall June 1901 2034 Riverside San Jacinto Mountains San Jacinto Mountains (along creeks, s side) 1341 Comment
  SEINET14643541  Gilia diegensis H. M. Hall 1904-5-19 4949 Riverside Fairmount Park, viciinity of Riverside. 244 Comment
  UCR237213  Gilia diegensis Duncan S. Bell, Valentin Arvizu 2010-5-10 988 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 1.1 air mi southeast of junction of FS Road 6S13 and FS Road 6S04 1349 Comment
  RSA771781  Gilia modocensis Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5034 -b Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010 750 Comment
  CAS-BOT-BC407612  Gilia ochroleuca subsp. exilis Robert F. Thorne; F. R. Fosberg; M. Sachetti 1983-4-23 55471 Riverside San Bernardino Mts: Side-canyon on W side of Whitewater canyon, ca 3.3 mi N of Whitewater Post Office 624 Comment
  RSA0016297  Gilia ochroleuca subsp. exilis Virginia Moran 2003-3-26 s.n. Riverside Wilson Valley Mitigation Bank, managed by the Center fot Natural Lands Management. Section 27 of two that comprise mitigation bank. (Section 27 & 33). Accessed from Wilson Valley Road. Comment
  GMDRC9815  Gilia stellata J. M. Andre 2017-3-1 38049 Riverside Chuckwalla Mountains: along powerline road 1.2 mi. SW of Interstate 10 at Eagle Mtn Rd exit 387 Comment
  JEPS119482  Gilia stellata Clark Cowan 1978-4-23 1176 Riverside ESE slope above San Jacinto tramway parking lot, Chino Canyon. Comment
  POM184303  Gilia stellata P. A. Munz 1932-3-14 11988 Riverside Palm Springs. 91 Comment
  RSA45506  Gilia stellata J. C. Roos, L. Roos 1949-4-10 4226 Riverside 3.5 mi. SE of Desert Center, Chuckwalla Mountains. 610 Comment
  RSA612952  Githopsis diffusa subsp. diffusa D. L. Banks 1997-3-29 1621 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. The headwaters of Pala Creek at the southern extremity of the Reservation, north the Riverside / San Diego County line border,, west of the intersection of Magee Truck Trail and Moreno Road including a large area of vernally wet grassland at the extreme southwestern corner of the Reservation. 390 Comment
  UCR22025  Gnaphalium californicum Steve Boyd 1980-5-11 258 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, northwest corner of the Gavilan Plateau. East of trailer park, east side of Gavilan Road 625 Comment
  RSA552541  Gnaphalium canescens D. Charlton 1987-12-6 1104 Riverside Cottonwood Canyon, first canyon W of Whitewater N of the 10 freeway. N of Palm Springs. Foothills of San Bernardino Mtns. 915 Comment
  CDA7788  Gnaphalium leucocephalum R. E. Riefner Jr. 2006-8-22 06 -396 Riverside City of Temecula, Vine Street at Peach Tree Street. Comment
  UCR281213  Gnaphalium palustre Mitch Provance, John Hazlett, Matt K. Beyers 2017-4-19 417- 52 Riverside Menifee Valley, Menifee, about 0.5 miles south of Sun City, and 0.5 miles west of Romoland, SW corner of Lazy Creek Rd. and Murrieta Rd. 431 Comment
  UC581331  Guilleminea densa var. aggregata George Black 1937-11-26 Riverside Riverside, Pachappa Station Pachappa Station; Riverside, Pachappa Station Comment
  RSA271604  Guillenia lasiophylla Noel Holmgren, Patricia K. Holmgren, Ruth E. Kern 1973-3-21 6427 Riverside Big Maria Mountains, 12 air miles north of downtown Blythe 290 Comment
  UC64344  Guillenia lasiophylla H. M. Hall 1897-2-6 358 Riverside Hemet Comment
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Mar 24 2011
  CDA6150  Gutierrezia californica T. C. Fuller 1961-10-18 7160 Riverside Green River Station, Highway 91, 0.5 mile west of Prado Dam Road. 0 Comment
  POM292910B  Gutierrezia californica Lyman Benson 1945-11-10 11911 Riverside 5 miles east of Temecula. 457 Comment
  RSA189351  Gutierrezia californica L. S. Rose 1966-12-14 66110 Riverside Chino Canyon, 3 mi. W of Palm Springs. 671 Comment
  RSA556447  Gutierrezia californica Julie Greene 1993-4-30 1280 Riverside San Jacinto Wildlife Area. N of San Jacinto River drainage. 433 Comment
  UC1118588  Gutierrezia sarothrae C. Van Fleet 1931-1-22 547 Riverside Wilson Creek San Jacinto Quadrangle Comment
  SEINET8466216 Image available Harpagonella palmeri Scott D. White 2001-4-19 8381 Riverside Perris-Aguanga Basin; Perris / Sun City area. Just east of Goetz Road and south of Ethanac Road, c. 1.5 - 2.0 mi west of Interstate 215 442 Comment
  POM320325  Helianthemum scoparium var. scoparium David Wheat 1968-5-16 139 Riverside 7.7 miles W Washington Ave-Guava St, Murietta, in Rancho California, Santa Ana Mt. 244 Comment
  SEINET5711055  Helianthus californicus Lowell E. Urbatsch, Jim Grace; Sue Grace 1995-1 7094 Riverside Road to Idyllwild from Banning, ca. 5.5 miles from the south edge of Banning along CA 243; San Bernardino National Forest.; Banning 1219 Comment
  HSC93116  Helianthus gracilentus Karen Kirtland 1993-4-17 Riverside Hills N of Temecula Comment
  SBBG8410  Helianthus gracilentus H. and M. Dearing 1940-6-8 4349 Riverside S of Ribbonwood, Palms to Pines Hwy Comment
  UCSB9944  Helianthus petiolaris Ballard 1954-10-30 Riverside 3 miles south of Chino Men's Reform Institution 198 Comment
  UCR128254  Heliotropium curassavicum A. C. Sanders, Kelly Volansky 2003-10-16 27344 Riverside Moreno Valley, lower Pigeon Pass Valley, NE corner of intersection of Old Lake Dr. and Pigeon Pass Rd. 534 Comment
  UCSB39110  Heliotropium curassavicum Jorgensen, Jan 1982-3-23 Riverside Desert Beach along Highway 111, Salton Sea -70 Comment
  UCR154629  Hemizonia kelloggii A. C. Sanders, Mike Misenhelter 2005-6-15 31004 Riverside Peninsular Range; Sage-Aguanga Region, 2 miles NNE of Vail Lake, 4 miles SSW of Sage, Denise Rd. at Bonita Rd., near Calle de Nino, 1.2 mi. NE of summit of (Big) Oak Mtn., SW of Rocky Ridge and SE of Black Hills 671 Comment
  POM97112  Hemizonia kelloggii P. A. Munz 1925-5-20 9849 Riverside Aguanga Valley. Comment
  UCR263470  Hemizonia mohavensis A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35585 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek watershed, c. 1.25 mi ENE of Mountain Center, nameless tributary to Coldwater Creek north of Johnson Meadow, above mapped spring 1524 Comment
  UCR128250  Hemizonia paniculata A. C. Sanders, Kelly Volansky 2003-10-16 27335 Riverside Moreno Valley, lower Pigeon Pass Valley, NE corner of intersection of Old Lake Dr. and Pigeon Pass Rd. 534 Comment
  UCR167688  Hemizonia paniculata T. B. Salvato, Melissa Clemons 2005-6-23 1289 Riverside Peninsular Range; Temescal Valley, Alberhill, intersection of Lake Street and Walker Canyon Drive, N of Hwy I-15, at base of Walker Canyon 378 Comment
  CLARK-A1528-1924  Hemizonia pungens John C. Roos 1937-5-10 2452 Riverside Lake Elsinore Comment
  RSA532553  Hemizonia pungens subsp. laevis D. E. Bramlet 1990-7-26 2062 Riverside Murrieta Creek at the Rancho California Street bridge in Temecula. On W side of creek, just E of Diaz Rd and within the creek channel 330 Comment
  RSA180452  Hesperevax acaulis E. W. Lathrop 1965-5-9 5739 -b Riverside 6 miles W of Murrieta. Comment
  NY43298  Hesperocallis undulata C. R. Annable 1995-3-16 2297 Riverside Ca. 13km NE of Desert Center, on Hwy 177 Comment
  RSA286424  Hesperocallis undulata Mary H. O'Brien 1976-4-14 s.n. Riverside 0.4 mile N of Amboy Road and 3.4 miles east of Adobe Road in Twentynine Palms. 595 Comment
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Mar 29 2014
  CAS-BOT-BC403802  Hesperocnide tenella A. C. Sanders 1997-3-1 19753 Riverside Riverside: Box Springs Mtns., S end of the range along Gernert Rd. (dirt), in valley draining to Box Springs Cyn. 457 Comment
  RSA586142  Hesperocnide tenella D. L. Banks, Steve D. Boyd 1995-3-16 104 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. E of the Dripping Springs Alcove, N slope of Wildhorse Peak, on the Wildhorse Trail. 610 Comment
  UCR193297  Heterocodon rariflorum A. C. Sanders, Tim Thomas 2008-6-20 35545 Riverside Peninsular Range; San Jacinto Mtns., May Valley near Fleming Ranch, north of Bonita Vista Rd. and east of Herkey Creek 1550 Comment
  UCR193962  Heterocodon rariflorum A. C. Sanders 2008-7-25 35891 Riverside Peninsular Range; San Jacinto Mtns., May Valley, along nameless tributary of Herkey Creek NW of Bonita Vista Rd., 3/4 mi. SW of Fleming Ranch 1524 Comment
  CLARK-A1656-807  Heterotheca grandiflora Theo Glenn 1982-9-25 Riverside Snow Creek Comment
  UCSB37815  Heterotheca sessiliflora subsp. echioides Roos, John 1965-9-16 Riverside On State St. near Florida St., Hemet Comment
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Feb 27 2007
  HSC24986  Hibiscus denudatus R. W. Spjut 1972-2-1 2159 Riverside Colorado Desert, 10 mi. N on Eagle Mtn. Rd. from junction of Inst. 10, 1 mi. W of Desert Center Comment
  JOTR35331  Hibiscus denudatus Harding, Mitzi, Mark Wheeler 2012-2-28 97 Riverside Joshua Tree National Park. Southeast Coxcomb Mountains; southeastern most canyon in the range (Stop 2) 265 Comment
  RSA432774  Hibiscus denudatus Geo. Cantwell 1935-4-8 s.n. Riverside McCoy Springs, McCoy Mnts. [NW of Blythe] Comment
  RSA776963  Hibiscus denudatus Thomas Stoughton, Chrsiti Gabriel, Stephanie Rockwood 2011-3-30 913 Riverside McCoy Wash, east side of McCoy Mountains, pavement plain, approximately 7 miles north of I-10. 290 Comment
  UC32788  Hieracium horridum H. M. Hall 1901-7-1 2560 Riverside Fuller's Mills Mountains San Jacinto Mountains 2072 Comment
  SD129177  Hilaria rigida A. C. Sanders 1989-9-19 9496 Riverside Chocolate Mountains Aerial Gunnery Range: 1.75 kilometers (airline) south of the Tabaseca Tank, along the wash above Tabaseca Target (UTM: 11S, PH-35E, 07N) 680 Comment
  SEINET4145699 Image available Hilaria rigida J. M. Andre 2013-3-27 24809 Riverside Rice Valley; E side of Arica Mountains, along Rice-Midland Rd., 2.2 mi. S of Rice 242 Comment
  SEINET11678261  Hilaria rigida Unknown 1936-1 12548 Riverside Colorado Desert, N of Palm Springs Comment
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Oct 7 2017
  RSA495404  Hirschfeldia incana Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-11 2888 Riverside Vail Lake area, mouth of Temecula Creek Cyn, 1.5 mi west of Vail Lake Dam. 390 Comment
  SEINET2061523 Image available Hoffmannseggia glauca H. Dearing, M. Dearing 1942-4-6 4867 Riverside 3 mils E of Blythe. Comment
  OBI26133  Hoffmannseggia microphylla David J. Keil 1976-12-12 11913 Riverside Ca. 5 mi E of Indio along I-10 Comment
  RSA309523  Holodiscus discolor James R. Shevock 1978-4-26 5904 Riverside Northeast side of Pleasants Peak, Cleveland National Forest 1189 Comment
  CAS-BOT-BC285035  Hordeum depressum Philip A. Munz 1937-3-27 14936 Riverside Overflow from Lake Elsinore, Elsinore 304 Comment
  UCR110453  Hordeum depressum D. E. Bramlet 1998-4-22 2602 Riverside Peninsular Range, E. French Valley-Domenigoni Valley. 396m E. of Winchester Road and 1.68 km south of Holland Road. The meadow is 61m west of the San Diego canal, in the area of the canal bridge road. 450 Comment
  UCR266497  Hordeum depressum Mitch Provance, Matt Amalong 2015-4-6 415- 13 Riverside Temecula/Murrieta Region, About 1 mile SW of Winchester, along Leon Rd. in the vicinity of Norma Way and Busby Rd. 452 Comment
  CLARK-A1528-65  Hordeum hystrix C. M. Flanagan 1973-5-20 OO 522 Riverside Morongo Indian Reservation Comment
  RSA608534  Hordeum intercedens D. E. Bramlet 1996-5-4 2465 Riverside San Jacinto Wildlife Area. The site is at the entrance to Marsh A, approx. 15m from the southern levee of Pond No. 1. This locality is approx. 1.5 km northesat of the reserve entrance at Davis Road. 433 Comment
  POM47566  Horkelia clevelandii Philip A. Munz, I. M. Johnson 1924-7-27 8760 Riverside Dark Canyon, San Jacinto Mountains. 2409 Comment
  RSA0018953  Horkelia clevelandii Elbert Benjamine 1929-5-18 225 Riverside Mt. San Jacinto. 1220 Comment
  CAS-BOT-BC55488  Hornungia procumbens Steve Boyd 1986-4-2 1622 Riverside Gavilan Plateau, Gavilan Hills. Harford Springs County Park. 640 Comment
  CAS-BOT-BC312588  Hulsea vestita subsp. callicarpha Peter H. Raven; R. Snow 1957-7-26 11098 Riverside Banning-Idyllwild road, 0.7 mi. n. of Vista Grande Ranger Station, San Jacinto Mts. Comment
  UCR195706  Hulsea vestita subsp. callicarpha A. C. Sanders, Tim Thomas 2008-8-1 35941 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1402 Comment
  UCR201643  Hulsea vestita subsp. callicarpha Scott D. White, Justin M. Wood 2008-6-16 12150 Riverside San Jacinto Mountains, meadow at Quinn Flat 1378 Comment
  RSA717497  Hydrocotyle ranunculoides A. C. Sanders, O. F. Clarke 1991-6-10 11120 Riverside Upper Santa Ana River/San Bernardino Valley: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River 238 Comment
  RSA453769  Hydrocotyle umbellata L. C. Wheeler 1933-12-2 2314 Riverside U.S. 99: 2 miles NW Whitewater Station. 366 Comment
  POM361069  Hymenoclea salsola N. C. Cooper 1949-4-8 3311 Riverside Desert Center. 609 Comment
  POM361084  Hymenoclea salsola N. C. Cooper 1948-5-13 2842 Riverside Morongo Pass. 854 Comment
  SEINET156514  Hymenoclea salsola Norman C. Cooper 1944-4-23 1120 Riverside Cabazon. 457 Comment
  CAS-BOT-BC219752  Hyptis emoryi Roxana S. Ferris 1918-6-14 981 Riverside In Box Canon [Canyon], Near Shaver's [Shavers] Well, Mecca-Blythe Road Comment
  CAS-BOT-BC219768  Hyptis emoryi R. Freeman 1977-3-9 2172 Riverside S-O & Q-O South side of Chuckwalla Mnts. Comment
  CHSC83689  Hyptis emoryi John Dittes 2002-1-4 2 -46 Riverside Mojave Desert; Little San Bernardino Mountains; ca. 6.5 air-miles north of Indio. In wash on bajada of West Berdoo Canyon, northwest of Berdoo Canyon 4WD trail. 243 Comment
  JOTR32428  Hyptis emoryi La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2124 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Fargo Canyon; where 4x4 road meets southwest park boundary; steep-walled canyon 533 Comment
  RSA0107469  Hyptis emoryi Duncan S. Bell, Amanda Turek 2009-3-29 155 Riverside Collecting in the large western drainage of the Arica Mountains, within the Palen/McCoy wilderness area. 434 Comment
  SD38548  Hyptis emoryi Edith Purer 1935-4-21 6464 Riverside Eastern slope of Mt. San Jacinto, Near Palm Springs Comment
  UC484148  Hyptis emoryi Carl B. Wolf 1930-4-1 1498 Riverside near Cathedral City Comment
  UCR41273  Hyptis emoryi B. G. Pitzer 1986-2-9 0008 Riverside Sonoran (Colorado) Desert, Santa Rosa Mountains: Martinez Canyon, SW of Valerie Jean, on upper fan, c. 1 mi east of mouth of canyon 122 Comment
  CLARK-A1528-1240  Imperata brevifolia John C. Roos 1965-7-22 Riverside Palm Springs 149 Comment
  CDA5545  Ipomoea triloba T. C. Fuller 1962-10-2 9703 Riverside West side of Neighbors Boulevard, 0.8 mile south of Ripley. 0 Comment
  UC134758  Isocoma acradenia var. bracteosa J. W. Toumey 1894-9-27 19 Riverside Banning Comment
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Mar 13 2011
  CAS-BOT-BC311617  Isocoma acradenia var. eremophila S. B. Parish 1912-6-28 8117 Riverside Mecca Comment
  JEPS19199  Isocoma acradenia var. eremophila Mary Beal 1939-10-25 713 Riverside Palm Springs area Colorado Desert, Palm Springs Comment
  POM361285  Isocoma acradenia var. eremophila Allen 1921-10 s.n. Riverside Palm Springs. Comment
  UCR114203  Isocoma menziesii var. vernonioides A. C. Sanders, D. Malueg, K. D. Jones, et al 2000-9-8 23642 Riverside Perris-Aguanga Basin Region, French Valley, dry hills at N end of French V. Airport and just south of Auld Rd., along gasline right of way 409 Comment
  UCSB45953  Isocoma menziesii var. vernonioides Roos, John 1965-9-21 Riverside On the west side of March Air Force Base along 395 Highway Comment
  RSA777284  Isomeris arborea Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4752 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm)., Between N33.97538, W116.65161 and N33.97538 and W116.65119 604 Comment
  UC857716  Isomeris arborea Lewis S. Rose 1938-12-18 38323 Riverside Palm Springs 137 Comment
  UCR234279  Iva axillaris A. C. Sanders, T. B. Salvato 2012-4-27 40096 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. between Glen Ivy/I-15 and Indian Truck Trail, c. 500 m SE of El Hermano Rd. 325 Comment
  UCR235052  Iva axillaris A. C. Sanders, John F. Green 2012-5-27 40215 Riverside Peninsular Range; Perris-Aguanga Basin Region, eastern edge of Gavilan Hills, powerline route west of San Jacinto River and east of Hwy 74, 5.6 km SE of Perris 441 Comment
  RSA338174  Ivesia saxosa Robert F. Thorne, R. Dahlgren, Gertrud Dahlgren 1979-8-22 53577 Riverside Joshua Tree National Monument: Vicinity of Ryan Campground to base of Ryan Mountain 1341 Comment
  UCD51381  Jarava speciosa A. A. Beetle 1946-6-10 4387 Riverside San Jacinto Mt., San Jacinto Mts. 762 Comment
  CLARK-A1045-339  Jepsonia parryi George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Bautista Road; Hemet 15'Q Comment
  UCR101547  Jepsonia parryi A. C. Sanders 1997-3-19 20024 Riverside Lake Skinner area, hills at east foot of Bachelor Mtn., 0.5 km north of NE arm of lake, small canyon at N foot of 1700 ft. hill 488 Comment
  RSA0011156  Juglans A. C. Sanders, T. B. Salvato 2003-5-21 26783 Riverside Elsinore Valley: Wildomar, old ranch parcel SE of Wesley St. and SW of Laguna Rd., west of Orange St., NE of Palomar St. 402 Comment
  CAS-BOT-BC140680  Juglans californica A. C. Sanders; R. E. Riefner, Jr. 2009-8-11 37148 Riverside Peninsular Range: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River 238 Comment
  UCR210  Juglans californica Eugene Cardiff 1950-3-15 s.n. Riverside San Bernardino Valley Region, Jurupa Hills [=Jurupa Mtns.] 518 Comment
  UCR189781  Juglans californica var. californica Theresa Johnson 2007-10-9 402 Riverside Peninsular Ranges, Perris-Aguanga basin, Estelle Mountain 498 Comment
  UCR109646  Juncus balticus T. W. Fisher, R. E. Orth 1964-6-25 s.n. Riverside San Jacinto Mtns., Lake Hemet near stream 1311 Comment
  RSA567472  Juncus balticus subsp. ater Scott D. White 1993-5-29 1484 Riverside San Bernardino Mountains: Banning Canyon and Big Oaks Canyon along the road to Raywood Flat, Yucaipa Ridge. 1220 Comment
  RSA586248  Juncus bryoides Darin L. Banks 1995-4-11 167 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, E of the Dripping Springs Trail. 950 Comment
  RSA69674  Juncus bufonius F. W. Peirson 1919-4-14 2845 Riverside Murray Canyon, near Palm Springs. Comment
  RSA785184  Juncus bufonius D. E. Bramlet 1992-4-29 2256 Riverside San Jacinto Valley, 8 km SW of Hemet, NW of the intersection of California Ave. and Stowe Rd., c. 250 ft. north of Stowe Rd. and c. 350 ft. west of California Ave. 456 Comment
  UCR273789  Juncus bufonius Mitch Provance 2012-4-20 412- 24 Riverside San Timoteo Canyon, just southeast of the SCE El Casco Substation, on the south side of San Timoteo Canyon Rd./Oak Valley Parkway 643 Comment
  UCR110929  Juncus bufonius var. congestus A. C. Sanders, K. C. Rose 1999-6-18 22827 Riverside Domenigoni Valley, upper Warm Springs Creek between Hwy 79 (Winchester Rd.) and Scott Rd., Domenigoni Ranch, south of Winchester 433 Comment
  UCR132827  Juncus dubius A. C. Sanders, Steve Boyd, Jeff Ross, , Mitch Provance 1998-10-25 22274 Riverside San Jacinto Mtns., Hwy 74, roadside seep c. 2 miles below (west of) Mountain Center 1250 Comment
  RSA740792  Juncus effusus Scott D. White, Justin M. Wood 2008-7-9 12420 Riverside Johnson Meadow 1415 Comment
  SD122850  Juncus effusus subsp. austrocalifornicus Steve Boyd 1985-8-7 1106 Riverside Santa Rosa Plateau Region, northwest base of Redonda Mesa on Tenaja Road, 0.8 mile east of junction with 8S01 and 8S02. In wet, muddy swale along road. Comment
  UCR197054  Juncus effusus subsp. austrocalifornicus A. C. Sanders, D. L. Sanders 2008-9-27 36100 Riverside San Bernardino Valley Region, Santa Ana Riverbottom at Norco, between Corydon Av. (Fire Sta. 21) and a point NW of Vine St. & Halfmoon Ct. intersection, c. 1 mile NE of River Rd. bridge 165 Comment
  UC1532810  Juncus luciensis Robert F. Thorne and Earl Lathrop 1975-5-20 45498 Riverside Mesa de Burro Santa Rosa Plateau, Rancho California 609 Comment
  SDSU11812  Juncus mexicanus H. Wedberg 1962-7-28 994 Riverside In Hemet Meadow, about 1 mile S from Herkey Creek Publ. Campgr. on the road to Santa Rosa Summit, San Jacinto Mts. 1372 Comment
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Jan 24 2013
  RSA368337  Juncus rugulosus L. C. Wheeler 1932-9-4 1331 Riverside Santa Ana River at Chino Creek 183 Comment
  RSA559352  Juncus tiehmii Steve Boyd 1992-5-15 7390 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Major lateral drainage north of Bear Canyon, vicinity of the junction of Tenaja and Morgan Trails, west of Round Potrero. 671 Comment
  RSA708218  Juncus xiphioides Scott D. White, Angelia Carey 2004-5-7 10330 Riverside Indian Creek and adjacent foothills. 549 Comment
  UCR23316  Juniperus californica John C. Roos 1952-4-16 5541 Riverside Box Springs Mtns. 457 Comment
  UCR93044  Juniperus californica Scott D. White 1995-12-24 3797 Riverside Lakeview Mtns., Juniper Flats Road, c. 1.2 road mi north of the junction w/ SR 74. 610 Comment
  GMDRC2586  Justicia californica J. Andre, T. La Doux 2008-3-21 8828 Riverside Little San Bernardino Mountains: JTNP: Upper Cottonwood Cyn, approx 2 mi. S. of Cottonwood visitor's center.. Elev. 2890 ft. 881 Comment
  RSA28056  Justicia californica I. L. Wiggins 1941-3-27 9689 Riverside Desert wash 9 miles west of Desert Center. Comment
  RSA782280  Justicia californica R. W. Spjut 2008-2-29 16210 Riverside Sonoran Desert. BLM: Red Cloud Road just west of Desert Center, about 8 miles SE of I-10 along Red Cloud Road, Chuckwalla Bench 570 Comment
  SEINET2163668 Image available Justicia californica I. W. Clokey 1935-4-17 6888 Riverside Cottonwood Springs Comment
  UCR154757  Keckiella antirrhinoides T. B. Salvato, Kent Beaman 2005-5-16 784 Riverside San Jacinto Mtn foothills, San Jacinto River east of Valle Vista, just downstream from the Forest Service boundary and north of CA Hwy 74 585 Comment
  UCR248185  Keckiella antirrhinoides David J. Keil 1983-4-15 16899 Riverside east of Temecula on SR 79 Comment
  POM11200  Keckiella rothrockii subsp. jacintensis Philip A. Munz 1922-7-5 6008 Riverside Tahquitz Valley, San Jacinto Mountains 2256 Comment
  RSA0019431  Keckiella ternata subsp. ternata Verne Grant, Alva Grant 1951-7-19 16090 Riverside Idyllwild road, ca. 1 mile above Highway 74. 1220 Comment
  RSA0019434  Keckiella ternata subsp. ternata Mary F. Spencer 1923-7-29 2261 Riverside Banning road. 1768 Comment
  UC149782  Koeleria macrantha H. M. Hall 1902-4-26 2976 Riverside vicinity of Riverside Box Spr. Mt. 685 Comment
  UCR2486  Koeleria macrantha F. M. Reed 1907-5-5 1338 Riverside City of Riverside; Fairmont Park 244 Comment
  SBBG46421  Krameria bicolor C. H. Muller 1952-5-20 9512 Riverside Whitewater Cyn Comment
  UCSB3524  Krameria bicolor Eriksen, C. 1954-4-29 Riverside 3 mi. W. of Morango Valley along the Hwy. Colorado Desert Comment
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Feb 2 2015
  CAS-BOT-BC43702  Krameria erecta L. R. Abrams 1926-3-26 11104 Riverside Between Edom and Garnet east of San Gargonio Pass Comment
  SEINET189444  Krameria erecta Annie M. Alexander, L Kellogg 1941-5-11 2150 Riverside Eagle Mountains Cottonwood Spring 884 Comment
  UC1280881  Krameria grayi Frank F. Gander 1938-5-21 5762 Riverside Shaver's Summit Comment
  RSA0056400  Krameria parvifolia var. imparata James R. Shevock 1970-12-13 560 Riverside White Tank Campground; Joshua Tree. 1175 Comment
  CLARK-A1528-1976  Lactuca serriola John C. Roos 1965-10-7 Riverside Beaumont Comment
  UC1929907  Lactuca serriola Scott D. White, Angelia Carey 2004-7-2 10572 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. San Jacinto 7.5' Quad. Comment
  POM352656  Lamarckia aurea N. C. Cooper 1944-4-22 1128 Riverside Banning. 732 Comment
  UCR72195  Langloisia setosissima Theo Glenn 1991-5-21 91- 107 Riverside Sonoran (Colorado) Desert, Arica Mtns, SW of Rice. Near old Priest Mine 421 Comment
  CAS-BOT-BC166017  Larrea tridentata Geo. B. Grant 1906-4-8 6724 Riverside Palm Springs Comment
  CAS-BOT-BC171123  Larrea tridentata Steve Boyd; Tammy Morgan; Aydee Virgen; Sarah J. DeGroot; Valentin Arvizu; Tim Thibault 2004-5-14 11236 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. Comment
  LA209859  Larrea tridentata A. H. Lange; 1951-5-27 sn Riverside Santa Rosa Mountains, 5 mi. N of Pinyon Flats 609 Comment
  RSA137466  Larrea tridentata David Gregory 1960-3-20 359 Riverside Rocky gully, 6 mi. E. of Thousand Palms. Comment
  RSA390015  Larrea tridentata J. C. Roos 1948-5-8 3817 Riverside Whitewater. 549 Comment
  RSA623985  Larrea tridentata Carol Roush 1963-4-9 6 Riverside 6 mi. south of Palm Canyon Dr. on highway 74; N-E foothills of the San Janito Mts. 457 Comment
  RSA652051  Larrea tridentata Marion P. Harthill 1973-2-17 1557 Riverside Snow Creek, Palm Springs 366 Comment
  SD229307  Larrea tridentata Dick Schwenkmeyer 2012-11-6 873 Riverside West fork of Palm Canyon, Agua Caliente Indian Reservation, 4.7 mi. south of the intersection of South Palm Canyon Drive and East Palm Canyon Drive, Palm Springs. 227 Comment
  UCR261451  Larrea tridentata A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41448 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms 439 Comment
  UCR41272  Larrea tridentata B. G. Pitzer 1986-2-9 9 Riverside Sonoran (Colorado) Desert, Santa Rosa Mountains: Martinez Canyon, SW of Valerie Jean, on upper fan, c. 1 mi east of mouth of canyon 122 Comment
  SD247475  Lastarriaea coriacea Andy Sanders, J. Schweitzer, K. Young 2015-3-23 41447 Riverside San Gorgonio Pass: San Gorgonio River wash, about 3.7 miles east of Cabazon, about 1.25 miles NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms. 427 Comment
  CAS-BOT-BC338923  Lasthenia californica H. M. Hall 1902-4-21 2926 Riverside Vicinity of Riverside 457 Comment
  JEPS28846  Lasthenia coronaria Peter H. Raven 1962-3-19 16913 Riverside 1.6 mi ne of junction State Highway 71 (State Highway 74, n of Elsinore) Comment
  SBBG128849  Lasthenia glabrata subsp. coulteri D. E. Bramlet, R. L. Allen, F. M. Roberts 2011-4-30 4825 Riverside Elsinore Trough, Nichols Rd wetlands area, 253 m S of Nichols Rd & 76 m E of Baker St 384 Comment
  UCR90764  Lasthenia glabrata subsp. coulteri D. E. Bramlet 1994-4-29 2373 Riverside 6.5 km west of Hemet, 915 m south of Florida Ave and 945 m west of Warren Road, Alongside the MWD canal Right-of-Way on the W side of the canal 457 Comment
  RSA774510  Lasthenia gracilis Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4462 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  SD244084  Lasthenia gracilis T. B. Salvato, Matt MallA^, Tom Sullivan 2013-3-27 7450 Riverside Perris-Aguanga Basin: Menifee, vacant lot north of Newcomp Substation, at southwest corner of Lazy Creek Road and Murrieta Road, (Romoland 7.5'Q) 431 Comment
  UCR122770  Lasthenia gracilis George K. Helmkamp, E. A. Helmkamp 1998-4-24 3374 Riverside San Jacinto Mountains, 0.1 mi east of the junction of Calif. Hwy 74 and Calif. Hwy 371, SE side of the mountains 1494 Comment
  UCR155088  Lasthenia gracilis A. C. Sanders, Kelly Volansky 2005-3-17 29233 Riverside Perris-Aguanga Basin Region, French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., c. 0.5 mi. NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  UCR214016  Lasthenia gracilis A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37792 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, west of dirt extension of Lake St., 1.0 mi. NW (341 deg. ) of intersection of I-15 and Lake St. 526 Comment
  UCR34907  Lasthenia gracilis L. B. Ziegler 1967-4-25 124 Riverside San Jacinto Mtns Foothills, Cahuilla Indian Reservation [near Anza] 1067 Comment
  RSA406619  Lathyrus vestitus Samuel R. Tyson 1940-4-28 s.n. Riverside Santa Rosa Indian Reservation Comment
  UCR270310  Lathyrus vestitus T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8379 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  POM19605  Lathyrus vestitus subsp. laetiflorus Mary F. Spencer 1923-07 2195 Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  SBBG89554  Lathyrus vestitus var. vestitus J. Adams 1966-4-28 728 Riverside Santa Rosa Plateau, dirt rd from Murrieta to De Luz 762 Comment
  UC489135  Lathyrus vestitus var. vestitus C. V. Meyer Jun 1927 168 Riverside San Jacinto Mts. 1676 Comment
  JEPS40025  Layia glandulosa W. L. Jepson 1901-5-19 1291 Riverside Strawberry valley; San Jacinto River 640 Comment
  RSA709449  Layia glandulosa T. B. Salvato, John Green 2004-5-27 705 Riverside Head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1402 Comment
  UCR165607  Layia glandulosa T. B. Salvato, John F. Green 2004-5-27 705 Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1463 Comment
  JEPS40035  Layia platyglossa Carl V. Meyer 1929-6-18 766 Riverside near Hemet Lake Hemet Valley; San Jacinto Mts. Comment
  RSA747957  Layia platyglossa Justin M. Wood 2009-5-15 711 Riverside Romoland, 1/4 mile S of Ethanac Rd, between San Jacinto Rd and Palomar Rd, just S of railroad tracks. 442 Comment
  UCR228924  Layia platyglossa A. C. Sanders, Nathan Moorhatch 2011-3-22 38796 Riverside Peninsular Range; Perris-Aguanga Basin, Romoland in Menifee Valley, powerline route along McLaughlin Rd. between Palomar Rd. and San Jacinto Rd. 442 Comment
  SD73610  Layia platyglossa subsp. campestris Helen V. Witham 1970-5-1 863 Riverside Bajutista Canyon, southeast of Hemet 1000 Comment
  RSA741224  Layia ziegleri Scott D. White, Justin M. Wood 2008-5-15 11985 Riverside San Jacinto Mountains: Johnson Meadow. 1415 Comment
  RSA69836  Leersia oryzoides J. C. Roos, L. Roos 1951-10-24 5345 Riverside Outlet of Fairmount Park Lake 259 Comment
  RSA621635  Lepidium dictyotum R. E. Riefner 1998-3-22 98 -183 Riverside Lake Elsinore. Elsinore Trough between Willard and Murrieta Creek. Comment
  UCR162888  Lepidium dictyotum var. dictyotum Fred M. Roberts, D. E. Bramlet 2005-4-1 6154 Riverside Upper Salt Creek, W of Hemet, parcel between Devonshire and Florida, c. 0.2km N of Florida and 0.2km W San Diego Aquaduct; c. 2km NW Ryn Field 457 Comment
  CAS-BOT-BC89443  Lepidium fremontii K. Larson 1976-6-9 2021 Riverside Ca. 25 miles east of Indio. Comment
  RSA429902  Lepidium fremontii D. A. Young 1969-3-28 464 Riverside At end of Hayfield Rd., S of Interstate Hiway 10. 305 Comment
  UC856450  Lepidium fremontii Ira L. Wiggins 1937-3-9 8745 Riverside Chuckawalla Spring Chuckawalla Mts. Comment
  UCSB22531  Lepidium fremontii Shaw, M. 1964-4-5 Riverside 1.5 miles east of junction of State Highway 70 594 Comment
  UCSB39077  Lepidium fremontii Jorgensen, Jan 1982-3-21 Riverside South entrance to Joshua Tree National Monument 600 Comment
  CAS-BOT-BC89584  Lepidium lasiocarpum C. L. Hitchcock 1940-3-31 5884 Riverside 0.5 mile below Cottonwood Spring. Comment
  CAS-BOT-BC89590  Lepidium lasiocarpum John H. Thomas 1957-3-30 6555 Riverside Colorado Desert. 8.1 miles east of Cactus City, about 20 miles east of Coachella. 426 Comment
  UCR92069  Lepidium latifolium Scott D. White, S. Ogg 1994-10-17 2479 Riverside City of Temecula, Murrieta Creek channel directly west of Las Haciendas/Del Rio intersection. 314 Comment
  RSA522317  Lepidium latifolium Steve Boyd 1989-7-23 3787 Riverside City of Riverside, Santa Ana River, just downstream of old city dump at W extension of Rubidoux Avenue. Comment
  RSA781362  Lepidium latipes A. C. Sanders, T. B. Salvato 2011-4-1 38941 Riverside Lake Elsinore, SW of Baker St. along dirt branch road to microwave tower, near large water tank on hill 409 Comment
  UC10634  Lepidium virginicum var. pubescens Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Mountains Comment
  UCR121177  Lepidium virginicum var. robinsonii D. E. Bramlet 1990-4-26 1977 Riverside E side of Rawson Canyon, 2,500 ft. (~0.47 mi.) SW of knoll '2267" 610 Comment
  UCR220117  Lepidium virginicum var. robinsonii D. E. Bramlet 1998-6-4 2633 Riverside North Domenigoni Hills, 3.8 mi. ESE (97 deg. ) of Winchester 608 Comment
  RSA586919  Lepidium virginicum var. virginicum D. L. Banks, S. D. Boyd 1995-5-3 254 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  SDSU12989  Lepidospartum squamatum Michael G. Simpson with Claudia A. Luke 1999-10-27 2012 Riverside Adjacent to Santa Margarita river, Santa Margarita Ecological Reserve, San Diego State University, ca.1/4 mile from Southside Facilities. 152 Comment
  CLARK-A1528-5128  Lepidospartum squamatum var. palmeri John C. Roos 1965-10-12 Riverside Whitewater Comment
  UCD64015  Leptochloa fusca subsp. uninervia Collector Unknown 1948-9-1 Riverside Riverside County. Comment
  UCR127105  Leptodactylon californicum Mitch Provance 1998-6-1 570 Riverside Jurupa Mountains, SW Pyrite Canyon, c. 0.4 miles SSE of peak 1768 442 Comment
  CHSC26195  Leptosiphon ciliatus Dieter H. Wilken 1965-6-29 370 Riverside Strawberry Meadows, near Idyllwild, San Jacinto Mtns. At edge of road. 1554 Comment
  RSA152143  Leptosiphon ciliatus Wesley O. Griesel 1962-6-29 s.n. Riverside San Jacinto Mountains: Dark Canyon. 1921 Comment
  RSA586117  Leptosiphon floribundus subsp. glaber D. L. Banks, S. D. Boyd 1995-4-5 0157 Riverside Cleveland National Forest, Agua Tibia Wildeness Area. N slope of Agua Tibia Mtn., E of the Dripping Sprngs Alcove, E of the Dripping Springs Trial, in the N flowing drainage that empties into Arroyo Seco 549 Comment
  RSA586946  Leptosiphon lemmonii D. L. Banks, S. D. Boyd 1995-5-30 0475 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N Flank of Agua Tibia Mountain, along the Dripping Springs Trail; S of the Dripping Springs Campground, just inside the wilderness boundary. 505 Comment
  SD3882  Leptosiphon liniflorus Florence Youngberg 1933-8-28 Riverside San Jacinto Mountains; Idyllwild Pines. Comment
  POM128367  Leptosiphon pygmaeus subsp. pygmaeus Thos. Craig 1927-4-23 202 Riverside Glen Ivy. Comment
  UCR231200  Lessingia filaginifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39931 Riverside Peninsular Range; Santa Ana Mtns., near Sierra Peak on dirt road (Leonard Rd.) from Skyline Drive, c. 1/4 mile east of the Orange Co. line 884 Comment
  CLARK-A1528-1989  Lessingia glandulifera John C. Roos 1937-8-17 1216 Riverside Comment
  RSA520551  Lessingia glandulifera var. glandulifera Steve Boyd, D. Bramlet 1988-10-8 2884 Riverside Cahuilla Mountain, SW of Anza at head of Bautista Canyon. Along crest of the mountain. Comment
  UCR193757  Lessingia glandulifera var. glandulifera A. C. Sanders, Mitch Provance 2008-7-11 35756 Riverside Peninsular Range; San Jacinto Mtns., 3/4 mi. NE of Mountain Center, c. 1/4 mile NE of Keenwild Fire Station, near road to helipad 1494 Comment
  SBBG89134  Leymus condensatus L. F. LaPre 1988-6-3 Riverside Indian Truck Trail exit on W side of Interstate 15 in Temescal Cyn, ca. 0.25 mi from the freeway near the dirt rd Comment
  UCR113537  Leymus condensatus Mitch Provance 1998-6-6 687 B Riverside Jurupa Mountains, Jensen Quarry, Sunnyside area on W side of Sierra Blvd, just east of corner of 29th St. and Scenic Drive 262 Comment
  UCR217561  Lilium humboldtii subsp. ocellatum Jeff B. Galvin 2008-6-26 72 Riverside Peninsular Ranges, Santa Ana Mountains, Horse Thief Canyon, 1.3 km SE of Trabuco Peak 955 Comment
  POM12754  Lilium parryi Philip A. Munz 1922-7-7 6066 Riverside Meadow N of Tahquitz Valley. San Jacinto Mountains. 2226 Comment
  SD229045  Lilium parryi Dick Schwenkmeyer 2012-8-28 818 Riverside Fuller's Mill camp, 2.6 mi. east of intersection of highway 243 and Fuller's Mill road, 7.5 miles north of Idyllwild. 1799 Comment
  UC1035029  Lilium parryi Albert M. Vollmer Jul 1 1950-Jul 7 1950 Riverside Stony Creek; San Jacinto Mountains Comment
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Mar 10 2013
  UCR19166  Linanthus aureus John C. Roos 1942-5-2 1148 Riverside Mojave Desert, Joshua Tree Nat. Monument. Lost Horse Well Comment
  UCR263474  Linanthus ciliatus A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35590 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek watershed, c. 1.25 mi ENE of Mountain Center, nameless tributary to Coldwater Creek north of Johnson Meadow, along trail from May Valley Rd. 1555 Comment
  RSA654613  Linanthus dianthiflorus Starr Streight 1982-4-17 72 Riverside Field north of Santa Rosa road, 5.7 miles east of Lake Mathews Road. Comment
  SEINET7073398  Linanthus dianthiflorus A. G. Vestal 1963-4-23 s.n. Riverside About 1.6 mile up the Railroad Canyon Road southeast of Lake Elsinore. Coordinate datum: NAD27. Comment
  RSA0113512  Linanthus dianthiflorus Lyman Benson 1945-6-29 11617 Riverside San Gorgonio Pass, 5 miles east of Banning. 609 Comment
  RSA192030  Linanthus dianthiflorus subsp. dianthiflorus E. W. Lathrop 1960-03 4654 Riverside 5 miles west of Murrieta. Comment
  UCR78436  Linanthus floribundus Scott D. White 1993-3-15 1192 Riverside Peninsular Range, Elsinore, Hwy 74, just west of NW corner of Lake Elsinore. Dickey Canyon. Comment
  UCR41542  Linanthus jonesii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6007 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  UCR193897  Linanthus liniflorus A. C. Sanders, Mitch Provance 2008-7-11 35776 Riverside Peninsular Range; San Jacinto Mtns., FS road 5S02 to Coldwater Creek below road to helipad, 1 mi. NE of Mountain Center, c. 1/2 mile NE of Keenwild Fire Station 1463 Comment
  UCR213886  Linanthus parviflorus Scott D. White, Angelia Carey 2004-4-5 9988 Riverside San Jacinto Mountains, Foothills, north of Valle Vista. Indian Creek Watershed 671 Comment
  LA206725  Linanthus pungens Elizabeth McClintock; 1936-7-27 sn Riverside San Jacinto Mountains, trail to Tahquitz Peak Comment
  RSA468524  Linanthus pungens Anstruther Davidson 1896-07 s.n. Riverside San Jacinto Mtns. Comment
  SEINET7073304  Linaria canadensis A. G. Vestal 1963-4-27 s.n. Riverside Santa Gertrudis Wash southeast of Murrieta Hot Springs. Coordinate datum: NAD27. Comment
  UCR103742  Linaria canadensis var. texana O. F. Clarke 1997-3-4 s.n. Riverside Riverside, Vacant lot at back of St. George's Episcopal Church, at corner of Spruce Street and Watkins Drive 305 Comment
  RSA91380  Linum lewisii F. W. Peirson 1922-5-20 3036 Riverside North side of Hemet Valley, San Jacinto Mts. 1372 Comment
  CAS-BOT-BC432281  Lithophragma affine Steve Boyd; Tim Ross; Laurel Arnseth; Jaime Bonilla 1990-4-2 3994 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Sta. 609 Comment
  RSA0010979  Lithophragma affine Scott D. White, Angelia Carey 2004-4-5 9990 Riverside San Jacinto Mtn. Foothills: North of Valle Vista. Indian Creek Watershed. 518 Comment
  UCR26653  Lithophragma affine E. W. Lathrop 1966-3-30 6121 Riverside Santa Ana Mtns, Cleveland National Forest, Main Divide Truck Trail between El Carriso & Santiago Peak 1220 Comment
  UCR35278  Lithophragma affine subsp. mixtum L. B. Ziegler 1972-4-7 444 Riverside San Jacinto Mtns., canyon on N slope Baldy Mtn. 1646 Comment
  UC23827  Loeseliastrum schottii S. B. Parish Apr 4 1896-Apr 13 1896 4127 Riverside Palm Springs (Agua Caliente) desert base San Jacinto Mts., Palm Springs (Agua Caliente) 152 Comment
  CAS-BOT-BC342105  Logfia arizonica Steve Boyd 1986-5-7 1825 Riverside Alberhill Mountain: Lower slopes of south flank, just E of claymine area Comment
  CAS-BOT-BC342109  Logfia arizonica Dave Silverman; Onkar Singh 2010-3-25 7843 Riverside Palo Verde Mesa, 1.4 km E of Black Creek Rd, 4.9 km W of McCoy Wash, and 8.8 km N of I-10 151 Comment
  JOTR29366  Logfia depressa La Doux, Tasha, Bill Truesdell, Naomi Fraga 2006-4-26 1443 Riverside Joshua Tree National Park. Little San Bernardino Mountains; south end of Long Canyon, near Park boundary 547 Comment
  CAS-BOT-BC342253  Logfia filaginoides Steve Boyd 1986-4-22 1732 Riverside Temescal Canyon: Walker Canyon area where Alberhill creek (=Temescal Ck.) flows between Alberhill Mtn. and Gavilan Hills Comment
  UC1523459  Logfia filaginoides Robert F. Thorne and C. W. Tilforth 1980-5-28 54229 Riverside ca 3.2 mi n Whitewater P.O. (and Hwy 10); San Bernardino Mts., Whitewater River Comment
  UCR138816  Lomatium dasycarpum subsp. dasycarpum D. L. Banks 1997-2-17 1283 Riverside Agua Tibia Mtns., NW Palomar Mountains: Pechanga Indian Reservation, along Magee Truck Trail between the headwaters of Pala Creek at the southern extremity of the Reservation to the Riverside/San Diego County line border 482 Comment
  RSA609829  Lonicera subspicata var. denudata R. S. Woglum 1937-5-22 530 Riverside Temecula. Comment
  RSA772415  Lotus argophyllus var. argophyllus Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4850 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 2-3 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.02559, W116.69098 and N34.02135 and W116.68712. 915 Comment
  UCR9383  Lotus grandiflorus D. H. Wilken 1965-6-29 367 Riverside San Jacinto Mtns, Strawberry Meadows, near Idyllwild 1555 Comment
  RSA0093975  Lotus hamatus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-3-31 37673 Riverside Peninsular Range; foothills of Gavilan Hills. Temescal Canyon at Alberhill, c. 1/2 mi. west of Lake St. on N side of I-15, near Temescal Canyon Rd. undercrossing and N of Concordia Ranch Rd. 372 Comment
  RSA586848  Lotus hamatus D. L. Banks, S. D. Boyd 1995-5-3 0267 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  RSA613446  Lotus hamatus D. L. Banks, Victor W. Steinmann 1997-3-13 1446 Riverside NW Palomar Mountains, Agua Tibia Mountains: In the Redhawk Housing Development, north of the Pechanga Indian Reservation. The hills south of the intersection of Marge Place and Tehachapi Pass (south of Redhawk Parkway). 378 Comment
  SEINET7073312  Lotus hamatus A. G. Vestal 1963-4-27 s.n. Riverside Santa Gertrudis Wash southeast of Murrieta Hot Springs. Coordinate datum: NAD27. Comment
  UCR116456  Lotus hamatus A. C. Sanders, T. B. Salvato 2001-3-30 23871 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon west of junction of Av. Pina Colada 366 Comment
  UCR116983  Lotus hamatus A. C. Sanders, T. B. Salvato 2001-5-3 24080 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  UCR42785  Lotus hamatus B. G. Pitzer, Karen Kirtland 1986-5-20 0230 Riverside Butterfield Stage Ranch development, in the hills on the north side of Pauba Valley in the Rancho California area, 1 mi south of Buck Mesa on the east side of Butterfield State Road 457 Comment
  UCR60258  Lotus hamatus Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3181 Riverside Peninsular Range, Vail Lake area; hills just to SW of the dam 488 Comment
  UCR88297  Lotus hamatus A. C. Sanders, K. C. Rose 1995-4-5 16370 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  UCR52322  Lotus nevadensis var. nevadensis Kevin Neal 1988-5-28 14 Riverside San Jacinto Mtns, near Chalk Hill, c. 1.5 mi. south of Idyllwild on Hwy 74 Comment
  UCR96251  Lotus nevadensis var. nevadensis Scott D. White 1996-8-1 4418 Riverside Peninsular Range; San Jacinto Mtns., Idyllwild area, Hwy 243 at Deer Springs trailhead and adjacent area 1829 Comment
  POM243699  Lotus procumbens var. procumbens E. C. Jaeger 1938-5-14 s.n. Riverside Near Stubbe Springs, Joshua Tree National Mon. 1402 Comment
  RSA23271  Lotus rigidus Ernest Braunton 1940-05 2031 Riverside Berduo [?] Canyon Comment
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May 13 2016
  RSA543976  Lotus salsuginosus Steve Boyd 1991-5-10 6208 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA525260  Lotus salsuginosus var. salsuginosus Steve Boyd, Laurel Arnseth, Yvonne Rasmussen, Hugo Cota, Bob Boyd 1990-5-3 4573 Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 549 Comment
  JOTR29612  Lotus scoparius var. brevialatus Andre, Jim 2006-4-26 6750 Riverside Joshua Tree National Park. about 0.5 mi. NNE of Rattlesnake Spring on ridge just south of radio tower and NE corner of park boundary 1320 Comment
  SEINET212654 Image available Lotus scoparius var. brevialatus Larry C. Higgins 1974-4-12 8477 Riverside 5 miles south of Morongo Valley on highway 62 Comment
  UCR91616  Lotus scoparius var. brevialatus D. L. Banks, Steve Boyd 1995-4-5 0161 Riverside Peninsular Ranges, Cleveland National Forest, Agua Tibia Wilderness Area, N slope of Agua Tibia Mountain, east of the Dripping Springs Alcove, along the Dripping Springs Trail 610 Comment
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Sep 5 2010
  RSA775606  Lotus strigosus Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 999 Riverside Iron Mountains, on southwest side of mountains in wash. 423 Comment
  UCR103907  Lotus strigosus B. G. Pitzer 1997-4-11 3108 Riverside Lakeview Mtns, Pulsar View Road (dirt), at sharp turn in road c. 1 mi. (air) NE of Juniper Flat Road, and c. 3/4 -1 mi. by road from the base of the hills. C. 3/4 mi. (airline) SE of Mt. Rudolph (measured from BM 'Nelson') 610 Comment
  UCR180388  Lotus strigosus Scott D. White, Andrea Warniment (Edwards) 2006-3-22 11272 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, a few mi east of Indio, at proposed I-10 Freeway / McNaughton Parkway interchange, north of the I-10 Freeway 152 Comment
  RSA4930  Lotus tomentellus C. B. Wolf 1932-4-27 3068 Riverside Colorado desert, Chuckwalla Valley, 16 miles east of Desert Center lower Sonoran. 122 Comment
  RSA525455  Lotus wrangelianus Steve Boyd, David E. Bramlet 1990-4-29 4500 Riverside Lake Skinner County Park, SE base of Bachelor Mountain. Comment
  RSA777758  Lupinus arizonicus Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-27 1079 Riverside Shavers Well area of Mecca Hills 305 Comment
  RSA776232  Lupinus bicolor Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 872 Riverside Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon 762 Comment
  UCR260855  Lupinus bicolor A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41423 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms 439 Comment
  POM184252  Lupinus bicolor subsp. microphyllus Philip A. Munz 1932-3-24 12017 Riverside Corona 366 Comment
  UCR97281  Lupinus concinnus George K. Helmkamp 1986-4-7 760 Riverside Sonoran (Colorado) Desert, S of Morongo Valley. First canyon east of and parallel to Hwy 62 north of Indian Ave. 579 Comment
  RSA407142  Lupinus concinnus subsp. optatus N. C. Cooper 1944-6-17 1434 Riverside San Jacinto Mountains: above Banning. 1372 Comment
  RSA581751  Lupinus concinnus subsp. optatus M. Wall, Lorrae Fuentes 1995-4-13 100 Riverside San Jacinto Mountains, along Hwy 243 out of Banning, 10 miles south of Interstate 10. Comment
  RSA619245  Lupinus concinnus subsp. optatus R. S. Woglum 1937-5-22 565 B Riverside Santa Rosa Mountains. Comment
  POM2486  Lupinus densiflorus var. lacteus Philip A. Munz 1918-4-27 2126 Riverside Elsinore Comment
  LA205079  Lupinus excubitus Elizabeth McClintock; 1938-5-18 sn Riverside San Jacinto Mountains Comment
  SEINET10484016  Lupinus excubitus subsp. austromontanus August J. Breitung 1953-6-13 Breitung 15559 Riverside Hemet reservoir, san bernardino nat'l forest. Comment
  CAS-BOT-BC205386  Lupinus excubitus var. austromontanus Christopher Davidson 1975-6-16 2815 Riverside 3.8 mi N of Alandale Station on road R1 from Idyllwild to Banning 1699 Comment
  UCR35021  Lupinus excubitus var. austromontanus L. B. Ziegler 1968-6-12 306 Riverside San Jacinto Mtns, Thomas Mtn 1982 Comment
  POM2438  Lupinus excubitus var. hallii Philip A. Munz 1918-4-27 2120 Riverside Elsinore Comment
  RSA575814  Lupinus excubitus var. hallii Steve D. Boyd 1981-3-2 s.n. Riverside Gavilan Hills region, central Dawson Canyon, just upstream from the confluence of Blue Oak Canyon. 366 Comment
  UCR84571  Lupinus excubitus var. hallii Steve Boyd 1986-4-22 1750 Riverside Temescal Canyon, Walker Canyon area, where Temescal Creek (=Alberhill Creek) flows between Alberhill Mountain and Gavilan Hills 427 Comment
  UCR91657  Lupinus excubitus var. hallii D. L. Banks, Steve Boyd 1995-4-5 146 Riverside Palomar Mtns region, Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn, east of the Dripping Springs Alcove, west of the Dripping Springs Trail, on terraces of W fork of Arroyo Seco. 573 Comment
  UCR89570  Lupinus formosus G. P. Schultz 1994-4-21 s.n. Riverside Box Springs Mountains, Pigeon Pass Road, c. 1 - 1.5 mi. above the dump. Comment
  SD83396  Lupinus microcarpus var. densiflorus R. Mitchel Beauchamp, R. C. Pierce 1971-3-27 2063 Riverside Fig Tree Valley, sandy area along trail 690 Comment
  SEINET7063561 Image available Lupinus odoratus A. G. Vestal 1947-4-8 s.n. Riverside About 6.8 miles south on Route 3. UTM Zone 11, 509589mE, 3707060mN. (WGS84/NAD83). 610 Comment
  RSA413489  Lupinus shockleyi Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-29 7810 Riverside West of Indio, 3 miles E of Date Palm Dr. 15 Comment
  JOTR34361  Lupinus sparsiflorus Andre, Jim 2012-4-16 20876 Riverside Joshua Tree National Park. Along Cottonwood Spr. Rd. 1 mile north of South Entrance 583 Comment
  RSA757617  Lupinus sparsiflorus LeRoy Gross, Jackie McConnaughy, Drew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4341 Riverside Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon., Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W. Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  UC56612  Lupinus sparsiflorus H. M. Hall Apr. 1902 2939 Riverside Riverside Comment
  UCR153384  Lupinus sparsiflorus Scott D. White 1999-5-24 7383 Riverside Peninsular Ranges/ Perris-Aguanga Basin, San Jacinto Valley, San Jacinto River wash: just N of the city of San Jacinto, about 1 mile SE of State St. Bridge 479 Comment
  UCR86885  Lupinus sparsiflorus A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16290 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, San Gorgonio Pass; alluvial fan at the mouth of Snow Creek, between Hwy 111 and Snow Creek Village 427 Comment
  SEINET13198373 Image available Lupinus succulentus A. G. Vestal 1947-3-29 s.n. Riverside Comment
  UCR225722  Lupinus succulentus A. C. Sanders 2011-3-30 38905 Riverside Peninsular Range, city of Lake Elsinore, along Hwy 74 just west of El Toro Cutoff 438 Comment
  RSA262120  Lupinus truncatus E. W. Lathrop 1968-6-2 6966 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. Comment
  RSA524230  Lupinus truncatus Steve Boyd, T. S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4024 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  RSA618413  Lupinus truncatus D. L. Banks 1997-5-5 1963 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pechanga Creek, along the south fork of Pechanga Creek. 396 Comment
  POM12139  Luzula comosa Mary F. Spencer 1921-6-15 1278 Riverside Idyllwild, San Jacinto Mt. 1616 Comment
  POM14117  Luzula comosa Phillip A. Munz 1922-7-6 6000 Riverside Tahquitz Valley, San Jacinto Mountains. 2195 Comment
  RSA209594  Lycium andersonii S. W. Austin 1969-4-3 3 Riverside [Riverside] West slope of Box Springs Mountains, east of railroad tracks and north of ravine north of Big Springs Rd. 427 Comment
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Jun 24 2012
  RSA422101  Lycium andersonii N. R. Zabriskie 1969-4-27 207 Riverside Andrea Canyon near Palm Springs. 366 Comment
  RSA776287  Lycium andersonii Duncan S. Bell 2010-3-20 627 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  UCR89679  Lycium andersonii Bern Schwenn 1994-5-7 s.n. Riverside Sonoran (Colorado) Desert, Joshua Tree National Monument and vicinity: Eagle Mtns, along Black Eagle Mine Road 1.3 mi east of Monument boundary 650 Comment
  CAS-BOT-BC231645  Lycium fremontii R. H. Peebles 1929-3-10 17 Riverside Tauquitz [Tahquitz] Canyon, near Palm Springs Comment
  RSA650056  Lycium pallidum var. oligospermum N. J. Chatterton, C. M. McKell 1966-4-26 s.n. Riverside Gold Valley Ranch. Table Top Mtns. Comment
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Jun 9 2013
  UCR248092  Lycium pallidum var. oligospermum Duncan S. Bell, John Anderson, Kim Clark, Keir Morse 2012-11-11 4367 Riverside Sonoran (Colorado) Desert, Mecca Hills, at Hidden Spring just off Hidden Spring Canyon, c. 2.6 air miles south of Shaver Well, or c. 5.4 air miles northeast of junction of Box Canyon Road and the Coachella Canal 216 Comment
  RSA709802  Lythrum californicum A. C. Sanders 2004-5-12 27890 Riverside Elsinore Basin Region: Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek. 378 Comment
  SD262311  Lythrum californicum Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-6-6 617 22 Riverside Temescal Valley: Property on S side of Temescal Canyon Rd., just W of Concordia Ranch Rd. (Alberhill 7.5'Q) 363 Comment
  UCR149982  Lythrum hyssopifolia Scott D. White, Angelia Carey 2004-5-7 10332 Riverside San Jacinto Mountains, Indian Creek and adjacent foothills 610 Comment
  UCR201017  Machaeranthera asteroides var. asteroides Scott D. White, Justin M. Wood 2008-9-17 12540 Riverside Peninsular Range; Perris-Aguanga Basin, Romoland, 1/4 mile S of Ethanac Rd, between San Jacinto Rd and Palomar Rd, just S of railroad tracks 448 Comment
  UCR89591  Machaeranthera tortifolia Bern Schwenn 1994-4-29 s.n. Riverside Southern Mojave Desert, Joshua Tree National Monument (Park)., flat country east of Lost Horse Mtns, near Mystery Hole. In wash near mine tailings (Sec. 34, south of Cal. Riding and Hiking Trail) and near old road to Indio 1311 Comment
  UCR193120  Madia gracilis A. C. Sanders, Tim Thomas 2008-6-20 35557 Riverside Peninsular Range; San Jacinto Mtns., May Valley near Fleming Ranch, north of Bonita Vista Rd. and east of Herkey Creek 1550 Comment
  RSA300465  Mahonia dictyota W. Wisura 1982-5-29 3827 Riverside San Jacinto Mountains, Live Oak Spring, ca. 1 mi E of saddle on Pacific Crest Trail , ca. 6.5 miles N of Hwy 74 1707 Comment
  UCR261697  Malacothamnus densiflorus Dick Newell, Judy Booth 2015-5-17 404 Riverside Peninsular Range; Santa Ana Mtns., Cleveland National Forest, South Main Divide Rd., 0.53 mi. NW of Elsinore Peak 968 Comment
  POM37220  Malacothrix californica Marcus E. Jones 1903-5-1 s.n. Riverside Banning 701 Comment
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Mar 13 2011
  POM157908  Malacothrix clevelandii P. A. Munz 1927-5-20 10813 Riverside 10 miles south of Hemet Comment
  UCR116066  Malacothrix clevelandii O. F. Clarke, Jeanine Derby 1974-4-19 s.n. Riverside Lakeview Mountains, c. 2 mi. SSW of Mt. Rudolph, north of Juniper Flat, east of Juniper Flat Rd. and south of Stagecoach Rd., EIR for Tentative Tract 5702 610 Comment
  CAS-BOT-BC347691  Malacothrix glabrata L. R. Abrams 1926-3-25 11048 Riverside Between Banning and Cabazon Comment
  JOTR28936  Malacothrix glabrata La Doux, Tasha 2005-3-30 1172 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  POM14093  Malacothrix glabrata P. A. Munz, D. D. Keck 1922-4-14 4984 Riverside 10 mi. west of Indian Wells. Along the Whitewater Wash. 91 Comment
  RSA721109  Malacothrix glabrata J. R. Bruff 1928-4-2 115 -b Riverside Canyon wash west of Morango Comment
  UC990705  Malacothrix glabrata Roxana S. Ferris and R. Bacigalupi 1953-4-20 12633 Riverside between crossing of Eagle Mt. Iron Mine R.R. and Shaver Summit (s of hayfields, U.S. Highways 60 and 70) Comment
  CAS-BOT-BC347892  Malacothrix saxatilis var. tenuifolia H. M. Hall 1901-6-1 2011 Riverside San Jacinto Mountains. Canyon of the San Jacinto River 609 Comment
  SEINET2053783 Image available Malacothrix saxatilis var. tenuifolia J. Nevin 1987-4-4 40 Riverside Market St. and Goodyear Ave, Ventura, 2 miles frolm caost. 0 Comment
  CAS-BOT-BC475160  Malosma laurina A. C. Sanders; Jeff Crain; Nina Kidd 2015-5-19 41729 Riverside Temesal Canyon, hilltop above DePalma Rd., about midway between Horse Thief Canyon Rd. and Glen Eden Rd. 399 Comment
  CDA28909  Malosma laurina Mike Lahti 2009-4-7 PDR# 1501610 Riverside West side of Temecula. 0 Comment
  CDA4990  Malva neglecta Scott D. White 1998-6-28 6800 Riverside Coastal Plains and Basins; San Bernadino Basin region; Corona: River Road bridge over the Santa Ana River. Comment
  UCR102818  Malva parviflora A. C. Sanders 1997-3-19 20061 Riverside Lake Skinner area, upper Rawson Canyon, west of Black Mountain, along the road from Lake Skinner 549 Comment
  UCR111580  Malva sylvestris Mitch Provance 1999-4-3 1724 Riverside City of Riverside, 'Eastside' area, SE corner of Victoria Ave. and 14th St. 274 Comment
  UCR274544  Malvella leprosa Mitch Provance, Ken Halama 2003-6-15 17060 Riverside Temescal Mountains, Mead Valley, just SSW of the corner of Cajalco Rd. and Wood St. Comment
  OBI30076  Marah macrocarpa T. W. Niilus 1970-2-10 N 6 Riverside 6 mi W of Perris at Hartford Spring 91 Comment
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Mar 29 2014
  UCD106740  Marina parryi C. L. Hitchcock 1966-3-21 24327 Riverside Mule Mts., 20 mi. s.w. of Blythe. Comment
  UCR178556  Marina parryi R. G. Swinney 1967-3-12 083 Riverside Sonoran (Colorado) Desert, North of Desert Center, [a short distance] along the road 274 Comment
  SBBG37492  Marrubium vulgare R. N. Muller 1967-5-5 Riverside UCR campus, on S side of first E-W ridge S of irrigation reservoir Comment
  RSA0036209  Marrubium vulgare Norman C. Cooper 1944-4-22 1112 Riverside Banning. 731 Comment
  UCR178342  Meconella denticulata Tracy Tennant, Mitch Provance, Jeffrey Ross 1998-6-25 MOR- 1060 Riverside Transverse Range; San Bernardino Mtns., Morongo Indian Reservation, upper Corral Canyon, tree stand C-01 1280 Comment
  POM348038  Medicago polymorpha N. C. Cooper 1944-4-22 1129 Riverside Banning. 732 Comment
  CSUSB1097  Medicago sativa Dick Bernier 1966-5-1 Riverside At the corner of Iowa and Unversity Ave. in a bare portion of a lot. 274 Comment
  CSUSB1135  Medicago sativa Sally Bell 1964-5-1 Riverside Highway 60, about 0.5 mile east of the crest of the grade in the Badlands between Sunnymead and Beaumont, on the south side of the road. 914 Comment
  CAS-BOT-BC269426  Melica californica Marcus E. Jones 1882-4-25 3554 Riverside San Jacinto Comment
  JOTR35941  Melica frutescens De Groot, Sarah J., Evan Meyer and Abby Hird 2013-3-23 6889 Riverside Joshua Tree National Park. north and northwest part of Lost Palms Oasis 987 Comment
  RSA770930  Melica frutescens Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4748 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm)., Between N33.97538, W116.65161 and N33.97538 and W116.65124 604 Comment
  UC818862  Melica imperfecta C. L. Hitchcock 1940-4-12 6042 Riverside 8 mi nw Elsinore 457 Comment
  UCD87786  Melica imperfecta A. A. Beetle 1946-6-10 4394 Riverside San Jacinto Mt., San Jacinto Mts. Near Idylewilde. 1219 Comment
  UCR117082  Melica imperfecta A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-8 24204 Riverside Perris-Aguanga Basin region, S of Hemet, E end of Diamond Valley, c. 1/4 mi. north of Newport Rd. and 3/4 mi. east of State St. 506 Comment
  UCR139031  Melica imperfecta D. L. Banks 1997-3-29 1635 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation. Headwaters of Pala Creek at the S extremity of the Reservation, north of the Riverside/San Diego Co. line, west of the intersection of Magee Truck Trail and Moreno Rd including a large area of vernally wet grassland at the extreme SW corner of the Reservation 409 Comment
  UCR163584  Melica imperfecta Tracy Tennant 1998-5-27 s.n. Riverside Beaumont Badlands, Dellamont Peak, c. 3.5 miles ESE of Gilman Hot Springs 1159 Comment
  SD181753  Melinis repens Scott D. White, Teresa Salvato 2001-6-8 8579 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. (Temecula) 334 Comment
  RSA10092  Mentha canadensis F. M. Reed 1903-8-29 308 Riverside River bottom near Chinatown Ford Comment
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Sep 5 2011
  UC1595626  Mentzelia affinis Steve Boyd and Dave Bramlet 1991-5-13 6257 Riverside ESE. Vicinity of ultramafic outcrop on ridge top S of S-end of Warren Rd. Winchester; Domenigoni Hills, N Side of Domenigoni-Diamond Valleys 548 Comment
  HSC87136  Mentzelia albicaulis Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. Ross 1988-3-10 2113 Riverside N end Palen Mtns., 2 mi. W of Palen Pass 300 Comment
  JOTR34485  Mentzelia albicaulis Andre, Jim 2012-4-16 20969 Riverside Joshua Tree National Park. along Cottonwood Spring Road, approx. 6 mi. south of the North Entrance at Twin Tanks parking area. 1196 Comment
  RSA172268  Mentzelia albicaulis Robert F. Thorne 1963-3-29 32408 Riverside Ca. 7-8 miles E of Mecca, Mecca Hills. 152 Comment
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Dec 14 2011
  SD260065  Mentzelia albicaulis J. Andre 2012-4-11 20778 Riverside Joshua Tree National Park; NW Eagle Mtns, along dirt road to Black Eagle Mine, 0.7 mi. east of road to Cottonwood Spr (Utah Trail), 34 mi. south of Hwy 62 at 29 Palms. At interface of steep rocky hills and large wash. 729 Comment
  UCR18120  Mentzelia albicaulis A. C. Sanders 1978-4-2 00413 Riverside Sonoran (Colorado) Desert, Living Desert Reserve in Palm Desert [mouth of Deep Canyon] 152 Comment
  RSA526512  Mentzelia dispersa Steve Boyd, T. S. Ross 1990-5-11 4706 Riverside Vail Lake area, N flank and summit of Wild Horse Peak in Agua Tibia Mtns, Cleveland Nat. Forest. 610 Comment
  RSA656535  Mentzelia involucrata A. C. Sanders 2000-4-25 23358 Riverside east side of the Coachella Canal between I-10 and Ave. 56 (Airport Rd.), 3 miles E of Thermal 15 Comment
  UC196003  Mentzelia involucrata Joseph Grinnell 1910-3-18 Riverside Riverside Mt., Colorado River Comment
  UCR167459  Mentzelia involucrata John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, NNE of Rancho Dos Palmas, between Coachella Canal siphons 28 and 29 24 Comment
  UCR51970  Mentzelia involucrata Steve Boyd, S. Meury , Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2139 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  UCSB39335  Mentzelia involucrata Jorgensen, Jan 1982-3-21 Riverside Corn Spring Oasis, Chuckwalla Mountains 600 Comment
  CHSC1020  Mentzelia involucrata var. megalantha V. Holt 1935-4-15 Riverside Colorado Desert. Comment
  SFV5018  Mentzelia involucrata var. megalantha F. M. Ball 1964-1-4 s. n. Riverside Open hillside at White Water, 16 miles east of Banning. 457 Comment
  UCR65298  Mentzelia micrantha Steve Boyd, T. S. Ross, K. A. Boyd 1989-6-24 3756 Riverside Vail Lake area, Along road in shallow canyon on SE flank of 'Little' Oak Mtn, west of Kolb Creek drainage, north of Hwy 79 Comment
  UCR57140  Micropus californicus var. californicus Jeri Hirshberg 1989-4-18 s.n. Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, south of town of Murrieta, south of Mesa de Burro and NW of Mesa de la Punta 610 Comment
  UCR220326  Microseris douglasii D. E. Bramlet 1991-5-7 2118 Riverside Peninsular Range; Perris-Aguanga Basin Region, San Jacinto Valley, 8.2 km SW of Hemet, just NE of jct. of California Ave. & Marvin Hull Road, c. 50-150 m north of the AT&SF railroad tracks & 300 m west of MWD canal 500 Comment
  UCR121815  Microseris douglasii subsp. douglasii A. C. Sanders, Carolyn Washburn 2001-4-17 24046 Riverside San Jacinto Valley, west edge of Hemet, SW corner of Florida Ave. (Hwy 74) and Warren Rd. 457 Comment
  SEINET13276737 Image available Microseris douglasii subsp. platycarpha Mitch Provance, Matt Amalong 2015-1 315 -27 Riverside Paloma Valley: Murrieta, old Clydesdale horse ranch 0.4-0.6 miles S of Keller Rd., along unmarked dirt portion of Menifee Rd. (Murrieta 7.5' Q.) 450 Comment
  UCR217522  Microseris douglasii subsp. platycarpha Rose Cook, Ana Hernandez 2010-4-15 02 Riverside Perris-Aguanga Basin, South of west end of Lake Matthews. 268m south of Cajalco Road, 460 m southeast of Cajalco Road/ La Sierra Avenue intersection 426 Comment
  UCR99188  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-30 2299 Riverside Siegal Ranch Road approx. 95 m south of Cajalco Road and 976 m east of the intersection of Cajalco Rd. and Sierra Ave., c. 20 m west of Siegal Ranch Road 451 Comment
  UCR165190  Microseris lindleyi S. J. Myers 2001-4-6 s.n. Riverside San Jacinto Mtns., Bautista Canyon 976 Comment
  UCR180042  Microseris lindleyi Mitch Provance 2005-5-18 9813 Riverside Warm Springs Valley, Nichols road wetland area at Alberhill Creek, south of the I-15 Freeway and Collier Ave., along the SE side of Pierce St., properties on both the NE and SW sides of Baker St. in the city of Elsinore 396 Comment
  RSA192024  Microsteris gracilis subsp. gracilis E. W. Lathrop 1960-3-11 4656 Riverside 5 miles west of Murrieta. Comment
  SDSU10748  Mimulus aurantiacus D. Hunsaker 1962-4-10 Riverside 3 miles SSW from Temecula. Comment
  UC1979589  Mimulus aurantiacus D. L Banks, Steve Boyd 1995-6-2 0560 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N peak of Agua Tibia Mountain; On the Woodchuck Trail N of the Riverside County boundary, approximately 1/4 miles S of the clay grassland in section 32. Comment
  LA209117  Mimulus aurantiacus var. pubescens Elizabeth McClintock; 1935-5-12 sn Riverside Massacre Canyon near San Jacinto Comment
  RSA519233  Mimulus aurantiacus var. pubescens Ed LaRue 1989-4-26 s.n. Riverside 2 mi. (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouths of Rice and McVicker Canyons. 488 Comment
  UCR48340  Mimulus aurantiacus var. pubescens Steve Boyd 1986-4-22 1749 Riverside Temescal Canyon, stable alluvial benches of Indian Wash just south of Interstate Hwy 15 Comment
  RSA442714  Mimulus aurantiacus var. puniceus Ora M. Clark 1929-3-2 1630 Riverside Near Elsinore. Comment
  RSA0041941  Mimulus bigelovii Duncan S. Bell, Loraine Washburn 2014-4-8 6583 Riverside Orocopia Mountains; at the entrance to Petra Canyon in Red Canyon, approximately 1 air mile north of the Bradshaw Trail. 398 Comment
  JEPS8160  Mimulus bigelovii var. bigelovii W. L. Jepson 1928-4-25 12596 Riverside Cottonwood Springs Eagle Mountains 731 Comment
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Oct 23 2011
  UCR59531  Mimulus brevipes Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3611 Riverside Vail Lake, Sandy benches of Kolb Creek drainage, south of Hwy 79 488 Comment
  RSA314472  Mimulus cardinalis Robert F. Thorne, Kay L. Wright, Richard K. Benjamin 1982-10-8 55382 Riverside Mouth of Whitewater Canyon near Whitewater Post Office in sandy wash between old and new highway bridges and along Whitewater River. 412 Comment
  HSC85264  Mimulus clevelandii Steve Boyd 1986-4-22 1757 Riverside Stable alluvial benches of Indian Wash just S of Interstate Hwy 15 Comment
  CAS-BOT-BC9465  Mimulus diffusus Barbara Ertter; Jeffrey L. Strachan 1980-5-21 3483 Riverside Santa Rosa Mountain road (Forest Road 7S02) ca. 2 miles south of Highway 74 (Pines to Palms Highway) 1584 Comment
  UCR217532  Mimulus diffusus Diane Menuz 2008-4-4 392 Riverside Peninsular Range, Palomar Mountains. And 0.5 mi down Woodchuck Rd. from national forest boundary 719 Comment
  UCR110986  Mimulus moschatus George K. Helmkamp 1998-6-27 4129 Riverside Santa Rosa Mtns., 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), in vicinity of Santa Rosa Spring. 2232 Comment
  UCR77578  Mimulus parishii Steve Boyd, T. S. Ross 1991-6-8 6327 Riverside San Jacinto Mtns., Pinyon Flats area near Ribbonwood. White calcareus outcrop forming small hill north of Hwy 74 Comment
  RSA612170  Mimulus pilosus Louis C. Wheeler 1932-7-9 931 Riverside Santa Ana River at Chino Creek. 152 Comment
  UCR136200  Mimulus pilosus A. C. Sanders 2004-6-20 28220 Riverside Peninsular Range, Temescal Canyon, 'Serrano Highlands' project, between Glen Ivy Hot Springs and Arcilla, NE side of the I-15 Fwy, south of Clay Canyon Rd. 305 Comment
  SEINET10570264  Mimulus primuloides David B. Dunn 1946-8-17 Dunn 2691 Riverside Near stream at camp in taquitz valley damp meadow area. San jacinto mtns. Comment
  UCR18180  Mimulus rubellus A. C. Sanders 1978-4-30 944 Riverside Santa Rosa Mtns, Pinyon Flats area; along the Cactus Springs trail between the dolomite mine and Horsethief Creek 1220 Comment
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May 25 2008
  RSA773172  Minuartia douglasii Duncan S. Bell, Valentin Arvizu 2010-5-24 1111 Riverside San Bernardino National Forest: Garner Valley, approximately 3.4 air miles southeast of junction of forest service road 6S04 and forest service road 6S13. 1385 Comment
  SEINET7097939  Minuartia douglasii A. G. Vestal 1937-5-9 s.n. Riverside Lat. 33 43' 11ao N, Long. -116 58' 15ao W. (NAD 27) South of Hemet at the foothills of Santa Rosa Hills. UTM Zone 11, 502695 mE, 3730874 mN. Comment
  UCR96876  Mirabilis californica Scott D. White 1993-3-12 1162 Riverside Near Winchester 466 Comment
  RSA784965  Mirabilis laevis var. retrorsa Duncan S. Bell 2012-3-18 3229 Riverside The Mecca Hills; at the mouth of Box Canyon, on the north side of the Coachella Canal. 14 Comment
  RSA464621  Mirabilis multiflora var. pubescens N. R. Zabriskie, W. M. Zabriskie 1972-3-30 500 Riverside west of Hwy 74, Santa Rosa Mountains 976 Comment
  SD119906  Mirabilis pumila Louis B. Ziegler 1964-8-10 29 Riverside Garner Valley; San Jacinto Mountains. 1402 Comment
  UCR196365  Mohavea confertiflora Naomi Fraga, Lisa Rojas 2005-2-10 1359 Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 365 Comment
  UCSB17614  Mohavea confertiflora Gerhart, Janet 1963-4-6 Riverside Coachella Canal; siphon #22; 5 mi S of intersection with Salt Creek Wash Comment
  POM96251  Mohavea confertiflora E. C. Jaeger 1925-12-20 s.n. Riverside Fish Traps Comment
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Feb 3 2011
  UC2026403  Mollugo cerviana Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10050 Riverside COLORADO DESERT, CHUCKWALLA MOUNTAINS: Northwest base of the range, south of Eagle Mine Road exit on Interstate 10. Comment
  RSA0042651  Monardella Elizabeth McClintock 1941-7-21 123 Riverside San Jacinto Mts. Trail to Hidden Lake, a short distance below Willow Creek. Comment
  RSA408712  Monardella australis subsp. australis F. W. Peirson 1924-7-27 4993 Riverside Dark Canyon, near Deer Springs, San Jacinto Mts. Comment
  UC130499  Monardella australis subsp. australis Mrs. C. M. Wilder 1909-7-10 3 Riverside above Walters; San Jacinto Mts., Tahquitz creek Comment
  UCR112806  Monardella breweri subsp. lanceolata A. C. Sanders 1997-5-1 20620 Riverside Lake Skinner area, Rawson Canyon c. 1 mi. due west of summit of Black Mountain, along dirt road to Crown Valley 549 Comment
  CAS-BOT-BC215500  Monardella nana Marcus E. Jones 1926-6-20 s.n. Riverside 12 miles north of Idyllwild Comment
  LA96080  Monardella nana Elizabeth McClintock; 1940-7-21 28 Riverside Santa Rosa Mountains, short distance below Santa Rosa Springs Comment
  RSA750399  Monardella nana subsp. arida Elizabeth McClintock 1940-5-19 10 Riverside 2 miles off Pines to Palms Highway, on road to Santa Rosa Mt. Comment
  RSA750405  Monardella nana subsp. arida Elizabeth McClintock 1941-6-8 68 Riverside 1.5 miles E of Ribbonwood. Pines to Palms Highway. Comment
  UCR221471  Monardella nana subsp. arida Elizabeth McClintock 1941-7-21 126 Riverside Peninsular Range; San Jacinto Mtns., trail to Hidden Lake, occuring for some distance along the trail, below the point at which the switchbacks and Salvia pachyphylla begin 2439 Comment
  SEINET10582421  Monardella nana subsp. arida A. Graff 1993-6-24 Graff 59 Riverside San Bernadino National Forest, Santa Rosa Mtn. 1.4 miles down Santa Rosa Mtn. Rd. (USNFS Rd. 7S02) from Santa Rosa Camp, on right roadside, west-facing slope (heading back towards Hwy. 74). T7S,R5E,S29. Locally abundant in sun and shade of Pinus jeffreyi, Quercus chrysolepis, with Eriophyllum confertiflorum, Lonicera subspicta, Phlox austromontana, Galium andrewsii, Eriogonum fasciculatum var. foliosum, Amorpha californica, Bromus sitchensis, Castilleja sp. Comment
  SEINET10582423  Monardella nana subsp. arida A. Graff 1993-6-24 Graff 61 Riverside San Bernadino National Forest, Santa Rosa Mtn. 1.4 miles down Santa Rosa Mtn. Rd. (USNFS Rd. 7S02) from Santa Rosa Camp, on right roadside, west-facing slope (heading back towards Hwy. 74). T7S,R5E,S29. Locally abundant in sun and shade of Pinus jeffreyi, Quercus chrysolepis, with Eriophyllum confertiflorum, Lonicera subspicta, Phlox austromontana, Galium andrewsii, Eriogonum fasciculatum var. foliosum, Amorpha californica, Bromus sitchensis, Castilleja sp. Comment
  IRVC2061  Monardella nana subsp. tenuiflora R. H. Whittaker, W. A. Niering 1963-6-9 SJ 354 Riverside Elks Road. Peninsular Ranges, Santa Rosa Mountains 1814 Comment
  UC1499961  Monardella nana subsp. tenuiflora E. and M. McClintock, D. Weiner 1941-7-11 103 Riverside 1/2 mi beyond Black Mt. Spring; Black Mt. Comment
  SEINET10582075  Monardella nana subsp. tenuiflora A. Graff 1993-6-23 Graff 42 Riverside San Bernadino National Forest, San Jacinto Mtns. From Hwy. 243, take Black Mtn. Rd. (USNFS Rd. 4S01) to junction with USNFS Rd. 4S02 and go 0.1 mile down 4S02. Monardella nana is on the right roadside. T4S,R2E,S23. Dry, gravelly, shaded, gentle slope. Locally sparse, with Pinus ponderosa, Arctostaphylos pringlei, Lotus scoparius, Bromus orcuttianus, Elymus elymoides, Elymus glaucus. Need USNFS permission to collect. Comment
  RSA550352  Monoptilon bellioides Walter Wisura, John Dolan, Michael Wall 1992-3-24 4636 Riverside Lowdesert: 14.0mi NE of Mecca, Bajadas above Box Canyon. Comment
  RSA0120240  Muhlenbergia appressa Duncan S. Bell 2016-4-14 9277 Riverside Santa Rosa Mountains; near the head of Deep Creek, along the Sawmill Tail; in the vicinity of the old water tank along the road. 1301 Comment
  RSA612496  Muhlenbergia microsperma D. L. Banks 1997-2-23 1321 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, north of Pechanga Road, south of Anza Road, just NNW of San Gabriel Church in the area burned by the 1996 Temecula Fire. 402 Comment
  UCD86834  Muhlenbergia microsperma G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2724 Riverside Colorado Desert: Chuckwalla Valley; 0.3 mile S of Checkwalla Rd. on Graham Pass Rd. Comment
  UCR19375  Muhlenbergia microsperma John C. Roos 1966-4-29 s.n. Riverside Between March AFB and Lakeview 762 Comment
  UCR83247  Muhlenbergia microsperma N. M. Fellows 1982-5-5 s.n. Riverside Hills south of UCR Campus Comment
  UCD87089  Muhlenbergia rigens William M Klein 1960-8-22 1584 Riverside North of Idyllwild along the trail to Suicide Rock and Mt. San Jacinto, San Jacinto Mts. Comment
  SEINET7862004  Muhlenbergia rigens M. F. Barrus, F. M. Reed 1920-1-12 99 Riverside Riverside, Arroyo Tequesquito. Comment
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Nov 6 2019
  UCR113565  Muilla maritima Mitch Provance 2000-4-8 2006 Riverside Jurupa Mountains, S extension of 'Rattlesnake Mt.', <100 m west of peak 1739. 518 Comment
  UCR1409  Muilla maritima Frank C. Vasek 1958-5-9 580509- 03 Riverside San Bernardino Valley Region, Reche Canyon Road, 0.1 mile north of Ferndale School Comment
  UCR216955  Myosurus minimus Ana Hernandez, Kim Sparks 2010-3-17 014 Riverside Perris-Aguanga Basin, San Jacinto Valley, Salt Creek, 125m east of Warren Rd. 460 Comment
  SD80145  Myriopteris covillei Nancy Ryan Zabriskie, Walter Zabriskie 1971-3-7 355 Riverside Andreas Canyon, ca 50 feet above stream opposite juncture with North Canyon, east slope of San Jacinto Mountains Comment
  RSA421117  Nama demissa E. S. Spalding 1926-2-13 s.n. Riverside Colorado Desert. Box Canon on Blythe Road. Comment
  CDA40301  Nama demissa var. demissa T. C. Fuller 1964-4-14 11820 Riverside Bench above wash of Whitewater Canyon, 4.1 miles north of Whitewater. 0 Comment
  JOTR31967  Nama demissa var. demissa La Doux, Tasha, M. Harding, M. Wheeler, T. Herskovits 2011-4-14 2204 Riverside Joshua Tree National Park. Southwest Eagle Mountains; west of Lost Palms Canyon; rocky/gravelly bajada north of the Aqueduct Rd. 603 Comment
  RSA771679  Nama demissa var. demissa Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4986 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010. 732 Comment
  UC724376  Nama demissa var. demissa Aven and Ruth Nelson 1939-3-29 3322 Riverside between Mecca and Hidden Springs; between Mecca and Hidden Springs Comment
  POM72623  Nama demissa var. deserti Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  CSUSB116  Nama demissum var. demissum Nancy Robb 1966-4-5 Riverside Dry, rocky slopes along highway between Yucca Valley and the Banning- Indio Freeway, four miles south of Morongo Valley. 914 Comment
  RSA0019794  Nama hispida var. spathulata April Garbat, Sarah J. De Groot 2013-4-30 57 Riverside Ford Dry Lake, N of I-10 122 Comment
  RSA628886  Nassella cernua A. C. Sanders 1994-5-29 14558 Riverside San Bernardino Mountains: Morongo Indian Reservation, among hills on the low pass between Millard Cyn. and Potrero Cr., (116 deg 48'W, 33 deg 57'N) 750 Comment
  RSA613419  Nassella lepida D. L. Banks 1997-4-5 1672 Riverside NW Palomar Mountains, Agua Tibia Mountains: Agua Tibia Wilderness Area., South of Dorland Mountain, just east of the Wilderness Area boundry with the Pechanga Indian Reservation, along a tributary of the north fork of Pechanga Creek. 670 Comment
  SEINET225791  Nassella pulchra E. W. Lathrop 1959-5-29 4587 Riverside Cleveland National Forest ; 14 miles West of Murrieta Tenaja Canyon. Comment
  UCR90341  Navarretia atractyloides Scott D. White 1995-6-30 3440 Riverside Santa Ana Mtn. foothills, Cole Creek, NW of Murrieta, upstream from Murrieta Creek confluence 396 Comment
  RSA593894  Navarretia fossalis R. E. Riefner 1995-11-29 95 -406 Riverside Davis Rd. San Jacinto Wildlife Sanctuary, 0.4 miles S of Old San Jacinto River. Comment
  UCR161734  Navarretia fossalis Mark A. Elvin 2005-5-24 4318 Riverside Southern Coastal, Perris; east of I-215; in fields just adjacent to San Jacinto River 427 Comment
  RSA356635  Navarretia hamata W. A. Tilforth, Larry E. DeBuhr, E. W. Lathrop 1975-8-29 47320 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro; desiccated bed of vernal pools near N end of Mesa 610 Comment
  RSA504539  Navarretia hamata Jeri Hirshberg 1989-6-9 s.n. Riverside Santa Rosa Plateau, S of town of Murrieta, SW of Mesa de Burro. Comment
  CLARK-A1045-156  Navarretia prostrata George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains vernal pool near origin of creek; Wildomar 7.5'Q Comment
  UCR260877  Nemacladus longiflorus A. C. Sanders 2015-3-30 41530 Riverside Peninsular Range; Eastern Foot of Santa Ana Mtns., Temescal Canyon near Lee (Corona) Lake, 0.1 mi. SW of the dam, south of Temescal Canyon Rd., c. 11 miles SE of Corona 351 Comment
  RSA591746A  Nemacladus orientalis J. C. Roos 1966-3-26 s.n. Riverside 2 mi S.E. of Desert Center. Comment
  UCR77701  Nemacladus pinnatifidus Steve Boyd, Orlando Mistretta 1991-5-22 6310 A Riverside Agua Tibia Mountains, Vail Lake area, base of Agua Tibia Mountain, east of Dorland Mountain, west of Kolb Creek 793 Comment
  SEINET3417797  Nemacladus ramosissimus Andrew C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30061 Riverside Peninsular Range, Agua Tibia Mountains; UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, end of Los Caballos Road in vicinity of water tank 457 Comment
  SEINET2081620  Nemacladus rubescens R. Haberle 1997-5-21 86 Riverside Joshua Tree National Monument. Cottonwood Spring Wash just above oasis, ca. .10 mi. Comment
  SD233791  Nemacladus tenuis var. aliformis Thomas Stoughton, Duncan S. Bell, Debra Nelson 2011-2-20 747 A Riverside Colorado Desert; Western Colorado Desert Region: North side of the Mecca hills, side canyon between the head of Box Canyon and Shavers Well, roughly 7.4 miles from Interstate 10 on Box Canyon Road. 305 Comment
  POM3489  Nemophila menziesii I. M. Johnston 1917-4-4 s.n. Riverside Palm Canyon 762 Comment
  RSA421336  Nemophila menziesii Elbert Benjamine 1929-5-18 220 Riverside San Jacinto Mt. 1677 Comment
  RSA524475  Nemophila menziesii Steve Boyd, Tim Ross, L. Arnseth, J. Bonilla 1990-4-3 4079 Riverside Vail Lake area, upper benches and adjacent slopes of the E flank of 'Big' Oak Mountain., just S of the E summit. 610 Comment
  RSA543739  Nemophila menziesii Steve Boyd, Mike Hammitt 1991-5-2 6033 Riverside Vail Lake region, SW & W flanks of Billy Goat Mountain, 3 miles N Hwy 79, 1 mile W of Hwy 371, N of Aguanga. 600 Comment
  UCSB33377  Nemophila menziesii Marks, R. 1978-3-16 Riverside At top of hill 3/4 mi. W of orange grove at 3000 McAllister Dr. in Riverside 457 Comment
  RSA717582  Nemophila menziesii var. menziesii A. C. Sanders 2004-4-9 27462 Riverside San Jacinto Valley: Tres Cerritos, ca. 3 miles WNW of Hemet, east of the Lakeview Mtns., in central valley among the three peaks. 488 Comment
  RSA192313  Nicotiana bigelovii var. wallacei H. A. Zuill 1966-7-1 272 Riverside Main Divide Truck Trail in the moutains south of Elsinore Lake. Comment
  JEPS12375  Nicotiana clevelandii S. B. Parish 1920-3-26 20011 Riverside near Palm Springs (e base of Mt. San Jacinto); Colorado Desert, Mt. San Jacinto Comment
  UCR166191  Nicotiana clevelandii Nathan Moorhatch, John F. Green, Ted Rado 2005-4-19 s.n. Riverside Sonoran (Colorado) Desert, Desert Hot Springs, Desert Dunes Golf Course (SW corner) just east of Palm Ave. Approximately 0.5 miles north-east of Seven Palms Ranch 226 Comment
  UCD126671  Nicotiana glauca R. N. Raynor 1933-3-31 s.n. Riverside Moreno Valley. Comment
  UCR90973  Nicotiana glauca Scott D. White 1996-2-18 3805 Riverside Perris Basin, Double Butte, NW of Winchester, SE-facing slope of west butte and alluvial soil at base 490 Comment
  CLARK-A1528-1495  Nolina bigelovii John C. Roos 1982-5-15 3852 Riverside Eagle Mountains Comment
  JOTR31981  Nolina bigelovii La Doux, Tasha, M. Harding, M. Wheeler, T. Herskovits 2011-4-14 2217 Riverside Joshua Tree National Park. Southwest Eagle Mountains; west of Lost Palms Canyon; bouldery canyon with sandy wash bottom 731 Comment
  RSA606184  Nolina parryi C. Epling, William Robison 1933-6-26 s.n. Riverside Little San Bernardino Mountains: Key s View [Salton View]. 1524 Comment
  SD67899  Nolina parryi Reid Moran 1968-8-3 15374 Riverside W slope of Santa Rosa Mtn. 1750 Comment
  SDSU12936  Nuttallanthus texanus Jutta Buschbom 1991-10-6 50 Riverside SE-slope, N-Border of the Reserve, beyond an Avocado-grove, ca. 500m (15 min) NW from the fieldstation. Santa Margarita Ecological Reserve, Temecula. Comment
  POM355583  Oenothera deltoides subsp. deltoides N. R. Zabriskie, W. M. Zabriskie 1973-3-19 574 Riverside Triangle formed S of Freeway (I-10), N of Ramon Rd., E of intersection with Bob Hope Dr., N of Palm Desert, Coachella Valley. (Site 19). 61 Comment
  POM355592  Oenothera deltoides subsp. deltoides H. Green 1939-4-1 s.n. Riverside Palm Springs. Comment
  RSA0048795  Oenothera deltoides subsp. deltoides Jim Andre 2013-3-27 24807 Riverside Rice Valley: east side of Arica Mountains, along Rice-Midland Rd, 2.2 mi. south of Rice (Hwy 62). 241 Comment
  UC20555  Oenothera deltoides subsp. deltoides S. B. Parish Apr 4 1896-Apr 13 1896 4107 Riverside Palm Springs (Agua Caliente) desert base of San Jacinto Mt. 152 Comment
  POM48992  Oenothera elata subsp. hirsutissima P. A. Munz, I. M. Johnston 1924-7-29 8823 Riverside 5 miles SE of Poppet Flat, San Jacinto Mtns. 1372 Comment
  UC217918  Oligomeris linifolia P. A. Munz and D. Keck 1922-4-14 4961 Riverside Indian Wells; Colo<rado> Desert <Colorado Desert>, Indian Wells 106 Comment
  UCR148854  Oligomeris linifolia S. J. Myers 2005-1-31 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, c. 10 miles ESE of North Shore along Coachella Canal right-of-way, N of Rancho Dos Palmas 20 Comment
  POM96634  Oligomeris linifolia F. M. Reed 1926-3-4 5165 Riverside Near Thermal Comment
  OBI12785  Olneya tesota H. E. McMinn 1937-3-5 4499 Riverside About 7 mi W of Blythe in wash with Cercidium Comment
  UC774558  Olneya tesota Carl B. Wolf 1940-7-16 Riverside 10 mi e Desert Center (on road to Rice); Colorado Desert 243 Comment
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Sep 24 2011
  CAS-BOT-BC478174  Oncosiphon piluliferum R. E. Jr. Riefner 2015-3-24 15 -99 Riverside City of Perris, Goetz Road at Ellis Avenue 447 Comment
  SD239616  Oncosiphon piluliferum R. E. Riefner Jr. 2011-5-31 11 61 Riverside French Valley, immediately NE of Hwy 79 and the intersection with Algarve Ave. 415 Comment
  UCR250210  Oncosiphon piluliferum A. C. Sanders 2014-4-23 41060 Riverside Peninsular Range, Temescal Valley, between Temescal Canyon Rd. and I-15, NW of Bernard St. 373 Comment
  UCR280602  Oncosiphon piluliferum R. E. Riefner Jr. 2016-4-24 17- 199 Riverside city of Menifee, Paloma Wash, immediately north of Holland Road and west of Haun Road 445 Comment
  SEINET848397  Opuntia X occidentalis C. B. Wolf, P. C. Everett 1938-1 3355 Riverside 9 miles fsrom Temecula on raod to Aguanga; fork of Temecula Wash Comment
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Aug 11 2013
  UCR47518  Opuntia leucotricha A. C. Sanders, Mira M. Bogen 1987-5-28 7105 B Riverside City of Riverside, along Van Buren Boulevard, near the bridge over the Santa Ana River, at Riverside sewer plant 244 Comment
  UCR26540  Opuntia littoralis A. C. Sanders, S. Hagopian 1981-5-20 2145 Riverside Perris-Aguanga Basin, S side of Pauba Valley, within l mi of Hwy 71 bridge over the Temecula River 367 Comment
  RSA7224  Opuntia polyacantha var. erinacea B. D. Stark 1932-5-15 3705 Riverside Rocky hills on Palms to Pines Road, San Jacinto Mountains. 1067 Comment
  RSA9815  Opuntia polyacantha var. erinacea B. D. Stark 1931-8-28 2447 Riverside San Jacinto Mountains. 3 miles N of forks in road to Santa Rosa and Aguanga. 1524 Comment
  CLARK-A1528-1043  Orcuttia californica Walton Wright 1977-8-15 Riverside Santa Ana Mountains Comment
  NY9652  Orcuttia californica P. A. Munz 1922-5-19 5375 Riverside This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR118178  Orcuttia californica Jack Easton, J. E. Harrison 2001-9-8 s.n. Riverside Perris-Aguanga Basin region, Menifee, immediately NE of intersection of Menifee and Scott Roads. Paloma Valley c. 1.1 mi. south of Bell Mountain 453 Comment
  RSA516889  Orobanche cooperi Steve Boyd, Orlando Mistretta 1986-3-13 1402 Riverside Palen Mountains: NE of Desert Center, jct of Parker Dam Rd and 'Palen Rd' (rd. going through pass between Palen and Granite Ranges). 183 Comment
  UCR103999  Orobanche cooperi George K. Helmkamp 1998-4-4 3144 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  RSA0069021  Orobanche cooperi subsp. cooperi Marcus E. Jones 1906-4-27 s.n. Riverside Indio Comment
  RSA586857  Orobanche fasciculata D. L. Banks, S. D. Boyd 1995-5-3 276 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 512 Comment
  UCR168256  Orobanche fasciculata I. M. Johnston 1917-4-4 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, mouth of Andreas Canyon 244 Comment
  UCR21186  Orobanche fasciculata A. C. Sanders 1980-5-1 1382 Riverside San Jacinto Mtns, Garner Valley area, 0.7 mi NE of the Kenworthy R.S. on Morris Ranch Rd. 1524 Comment
  RSA0081027  Orobanche fasciculata Philip A. Munz 1937-5-31 15124 Riverside Kenworthy, south part of San Jacinto Mts. 1371 Comment
  UCR21126  Orobanche parishii subsp. parishii A. C. Sanders, K. Berg 1979-10-27 946 Riverside San Jacinto Mtns., James Reserve along a trail near the weather station 1646 Comment
  RSA493826  Orthocarpus purpurascens Maureen Pendleton 1988-2-22 s.n. Riverside Rancho Calif. area. ca. 8 mi. (airline) NW of Temecula, between Bruce Lane and Via View Dr. 732 Comment
  SEINET4208826  Osmadenia tenella Steve Boyd, Tim Ross 1992-6-10 7626 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon about 'Potrero Escondido', an isolated area of low relief topping the ridge system due west of the junction of Tenaja Road (7S01) and Los Alamos Road (&S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek.; 0 671 Comment
  RSA574735  Oxalis albicans subsp. californica Steve Boyd 1981-3-13 s.n. Riverside Gavilan Hills regiion, upper western flank of Estelle Mountain. 671 Comment
  UC1929717  Oxalis californica Scott D. White 2003-3-21 8825 Riverside SANTA ANA MOUNTAIN FOOTHILLS: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. Comment
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May 28 2018
  RSA0120243  Oxytheca emarginata Duncan S. Bell, Thomas Stoughton 2016-4-13 9274 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting along the Cactus Spring Trail, in the vicinity of Horsethief Creek. 1047 Comment
  UCR202001  Oxytheca trilobata Mike Misenhelter 2005-6-8 s.n. Riverside Peninsular Range; San Jacinto Mtns., Idyllwild, south edge of town, 37 acre Lane property south of the intersection of Hwy 243 and Marian View Dr., west edge of Hwy 243 and off Robin Dr., West Ridge Rd., and Chickadee Way 1610 Comment
  UCR35081  Oxytheca trilobata L. B. Ziegler 1964-7-26 06 Riverside San Jacinto Mtns., Upper Herkey Creek on road to May Valley 1585 Comment
  CHSC108505  Palafoxia arida var. arida Naomi Fraga; Sarah J. De Groot, Lisa Rojas, Leland Lubinsky 2005-2-10 1419 Riverside Colorado Desert; Northeastern Colorado Desert region; Along Palen Road near Hwy 177. 170 Comment
  POM363741  Palafoxia arida var. arida E. A. McGregor 1964-3-24 s.n Riverside Near Desert Center, Hwy 60 Comment
  RSA23143  Palafoxia arida var. arida I. L. Wiggins 1938-3-19 8902 Riverside 25 miles W of Blythe. Comment
  SEINET269259  Palafoxia arida var. arida M. A. Patten, S. J. Myers 1993-8-20 Riverside Along Tahquitz Creek and in neighboring creosote scrb behind the debris basin dam in Palm Springs. 183 Comment
  UC1595689  Palafoxia arida var. arida W. Wisura, J. Dolan, and C. Demme 1992-4-13 4680 Riverside on Box Canyon Road 4.7 mi ne Mecca; Low Desert Comment
  UC667291  Palafoxia arida var. arida Annie M. Alexander and Louise Kellogg 1941-5-12 2163 Riverside road to Black Eagle Mine Eagle Mountains 670 Comment
  RSA801737  Panicum antidotale Anonymous 1952-9-20 s.n. Riverside San Jacinto Valley. Hemet. Comment
  RSA522094  Panicum capillare Steve Boyd, Orlando Mistretta 1989-7-18 3762 Riverside Vail Lake area, confluence of Kolb Creek with lake. 426 Comment
  JOTR29502  Panicum hirticaule subsp. hirticaule Bell, Mike 2006-9-14 s.n. Riverside Joshua Tree National Park. southeast Pinto Mountains; near Mission Well/ Sunrise Mill, off Old Dale Road 435 Comment
  JOTR36115  Panicum hirticaule subsp. hirticaule La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3116 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road, near Mission Well Comment
  UCR278641  Panicum hirticaule subsp. hirticaule Onkar Singh 2015-11-10 5615 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, 100 m south of Hwy I-10, 50 m east of eastern terminus of Chiuckwalla Valley Road 115 Comment
  RSA206495  Papaver californicum E. W. Lathrop 1969-5-8 7017 Riverside Los Alamos Canyon near junction of San Mateo Canyon, Clevland National Forest, Trabuco district 518 Comment
  UCR234331  Parietaria hespera A. C. Sanders, John F. Green 2012-4-6 40010 Riverside Peninsular Range; Santa Ana Mtns. Area, Temescal Canyon, along Temescal Cyn. Rd., between Campbell Ranch Rd. and Glen Ivy Electrical Substation, west of I-15 Fwy, c. 10 miles south of Corona 327 Comment
  LA45756  Parkinsonia florida Carl Epling; William Robison 1933-6-24 sn Riverside near Indio Comment
  RSA0019320  Parkinsonia florida Jim Andre 2012-3-19 21342 Riverside Chuckwalla Valley. Along unnamed dirt road 0.3 mi N of Hwy 177, 5.7 mi NE of Jct with I-10 freeway. 157 Comment
  RSA796453  Parkinsonia florida Duncan S. Bell 2009-4-18 225 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
  SD113585  Parkinsonia florida Darley F. Howe 1952-4-27 2186 Riverside Box Canyon east of Mecca. Comment
  SD95170  Parkinsonia florida M. E. Irwin 1963-4-3 Riverside 18 miles west from Blythe. 91 Comment
  UCD108142  Parkinsonia florida G. H. Vansell 1928-4-1 s.n. Riverside S. Calif. and Coachella Valley. Comment
  SD137946  Paspalum distichum Darin L. Banks, Steve Boyd 1995-10-17 807 Riverside NW Palomar Mts, Agua Tibia Mts. Cleveland Nat Forest, Agua Tibia Wilderness Area, Narrow benches where Arroyo Seco turns to E, just W of metasedimentary hills 523 Comment
  UCR89828  Paspalum distichum Karen Kirtland 1993-6-19 s.n. Riverside San Jacinto River Valley, along Hwy I-215 between 4th St. (Perris) andc. 0.25 mi south of the San Jacinto River 430 Comment
  RSA0031466  Pectis papposa Kristin Forgrave, Joshua Paolini 2013-8-7 30 Riverside At Ford Dry Lake, just north of I-10. Margins of lake bed. Comment
  SBBG8647  Pectis papposa H. and M. Dearing 1939-11-12 4027 Riverside E of Palm Springs Comment
  UCR264240  Pectis papposa A. C. Sanders, Jim Malusa 2015-9-10 41847 Riverside Sonoran (Colorado) Desert, Salt Creek Canyon, along Summit Road c. 1.5 miles above mouth of Red Canyon, edge of Chocolate Mountains Aerial Gunnery Range 433 Comment
  RSA0027564  Pectis papposa var. papposa April Garbat, Kristin Forgrave 2013-8-1 98 Riverside Chuckwalla Valley. Intersection of Graham Pass Rd and Chuckwalla Valley Rd. 120 Comment
  RSA608176  Pectis papposa var. papposa Steve Boyd, Valerie Soza, Tasha La Doux 1997-10-13 10063 Riverside Colorado-Mojave Desert transition, Little Maria Mountains: Bajada at southwest end of Rice Valley, along Midland Road, just north of pass between Little Maria and Big Maria mountains. 274 Comment
  RSA524224  Pectocarya linearis subsp. ferocula Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4018 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  RSA525683  Pectocarya linearis subsp. ferocula Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4553 Riverside San Jacinto Mountains, Vail Lake area, rolling terrain at jtn of Hwy R3 and Powerline Road, NE of the lake Comment
  POM3822  Pectocarya penicillata C. F. Baker 1904-4-5 4139 Riverside Hemet Comment
  RSA695835  Pectocarya penicillata J. Russell Bruff 1934-6-19 550 -a Riverside Near Hemet Reservoir Comment
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Dec 11 2011
  CDA40690  Pectocarya platycarpa K. Frick 1962-3-14 s.n. Riverside South end of Hemet Valley. 0 Comment
  SEINET3084040 Image available Pectocarya recurvata Andrew C. Sanders, L. Lubinsky, A. Knapp, P. J. MacKay, C. L. Sanders 1995-2-12 15919 Riverside Sonoran (Colorado) Desert; Coachella Valley, alluvial fan below the Little San Bernardino Mtns., Fargo Canyon Road, 1.35 mi. east of Dillon Road 98 Comment
  RSA192066  Pedicularis densiflora E. W. Lathrop 1959-4-2 4408 Riverside 18 miles S.W. of Elsinore. Tenaja plateau, south slope Comment
  RSA425316  Pedicularis semibarbata N. C. Cooper 1944-6-17 1409 Riverside San Jacinto Mtns. Pine Cove. 1677 Comment
  RSA593986  Pelargonium panduriforme D. L. Banks, Elizabeth Hedge Banks 1996-5-2 954 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve, at the Emerson Cottage. 524 Comment
  CLARK-A1528-3588  Pellaea andromedifolia John C. Roos 1937-5-2 1417 Riverside La Sierra Comment
  SEINET3873378  Pellaea andromedifolia var. andromedifolia Steve Boyd, Timothy S. Ross; Dave Bramlet 1993-5-12 7312 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Los Alamos Canyon downstream to confluence with Tenaja Canyon.; 0 Comment
  SBBG32334  Pellaea mucronata L. S. Rose 1966-12-14 66108 Riverside Chino Cyn, 3 mi W of Palm Springs Desert 670 Comment
  JOTR30842  Pellaea mucronata var. californica Andre, Jim, Tasha La Doux 2008-9-16 10703 Riverside Joshua Tree National Park. JTNP; SE end of Splitrock Picnic Area. Queen Mountain USGS 7.5 min Quad. Near 34 00.486' N 116 03.288' W 1289 Comment
  JEPS19080  Pellaea mucronata var. mucronata Marjorie D. Clary 1932-3-20 1627 Riverside 10 mi nw of Garnet (Mission Creek); Colorado Desert 457 Comment
  SD119895  Penstemon X parishii Louis B. Ziegler 1970-6-28 411 Riverside San jacinto Mountains - Thomas Mountain on north sloping ridge 1951 Comment
  POM49149  Penstemon centranthifolius Philip A. Munz 1924-5-18 8132 Riverside 18 miles from Banning on Idyllwild Road Alt. 1524 Comment
  SD212735  Penstemon centranthifolius T. B. Salvato, John F. Green 2004-5-27 586 Riverside Head of Banning Canyon close to the San Bernardino County line, 0.5 mile southeast of Oak Glen Conservation Camp. 1402 Comment
  SDSU10931  Penstemon centranthifolius W. T. Wiliams 1962-5-12 Riverside San Jacinto, 5 miles N of Idyllwild. Growing 10 feet W of Hwy. Comment
  UCR231804  Penstemon centranthifolius Brent Barnes, A. C. Sanders, Giles Waines, UCR Plant Taxonomy Class 2007-5-12 08 Riverside Peninsular Range; San Jacinto Mtns., dirt forest service road north of Poppet Flats, west of Hwy 243 1253 Comment
  RSA79775  Penstemon clevelandii subsp. connatus F. W. Peirson 1919-4-14 1106 Riverside Murray Canyon, Palm Springs Region. 457 Comment
  JEPS7550  Penstemon clevelandii var. connatus Marjorie D. Clary 1932-6-5 962 Riverside Dead Indian Trail Santa Rosa Mts., Carrizo Creek, Dead Indian Trail Comment
  RSA560838  Penstemon heterophyllus var. australis Steve D. Boyd, Tim S. Ross 1992-5-4 7184 Riverside Southern Santa Ana Mountains; San Mateo Canyon Wilderness Area; Oak Flats area E of Verdugo Potrero 732 Comment
  POM11244  Penstemon labrosus Philip A. Munz 1922-9-7 6454 Riverside San Jacinto Peak 3049 Comment
  POM15010  Penstemon labrosus Mary F. Spencer 1922-7-2 961 Riverside Idyllwild. 1707 Comment
  RSA401807  Penstemon spectabilis N. C. Cooper 1944-5-6 1219 Riverside Banning. 610 Comment
  RSA96901  Penstemon spectabilis subsp. spectabilis R. M. Straw 1953-6-6 457 Riverside 0.4 mi. N of Fulmore Lake on Idylwild to Banning road. Comment
  JEPS21329  Pentachaeta aurea W. L. Jepson May 17 1901-Jun 1 1901 1292 Riverside Strawberry Valley San Jacinto Mt. Comment
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Jul 8 2014
  LA203844  Pentachaeta aurea Robert G. Engman; sn Riverside San Jacinto Mountains Comment
  RSA0070717  Pentagramma triangularis Scott D. White, Angelia Carey 2004-4-5 9986 Riverside North of Valle Vista. Indian Creek Watershed. 518 Comment
  RSA0070720  Pentagramma triangularis Darin L. Banks, Steve Boyd 1995-3-30 0116 A Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., W of the Dripping Springs Alcove, E of the Woodchuck Trail. 713 Comment
  RSA0070723  Pentagramma triangularis Marion P. Harthill 1976-5-6 s.n. Riverside Cleveland National Forest. [County not specified on label. Could be Orange, Riverside, or San Diego County] 609 Comment
  RSA0070738  Pentagramma viscosa Scott D. White, Teresa Salvato 2001-6-8 8591 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  POM13282  Perideridia parishii subsp. latifolia P. A. Munz 1922-9-15 6367 Riverside Taqhuitz Valley, San Jacinto Mountains. 2195 Comment
  UCR215618  Peritoma arborea Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 014 Riverside Peninsular Range, Box Springs Mountains, eastern edge of Riverside; Two Trees Canyon Trail near the trailhead 409 Comment
  JOTR16650  Peritoma arborea var. arborea Baker, James K. & Baker, Ilisa T. 1966-6-22 s.n. Riverside Joshua Tree National Park. SQUAW TANK VICINITY 1097 Comment
  POM178001  Perityle emoryi Marcus E. Jones 1930-3-15 26505 Riverside Eagle Mountains. Comment
  RSA726521  Perityle emoryi Naomi Fraga, Lisa Rojas 2005-2-10 1402 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 361 Comment
  UCR256337  Perityle emoryi Duncan S. Bell 2012-2-12 3114 Riverside Mojave Desert, Mecca Hills, c. 1.25 air miles north of Box Canyon Road, and c. 4 air miles southwest of Shavers Well 256 Comment
  RSA23237  Petalonyx linearis Ernest Braunton 1940-03 2042 Riverside Fan Canyon. 20 miles NE of Indio. Comment
  POM84173  Petalonyx thurberi Marcus E. Jones 1903-5-8 s.n. Riverside Indio. -7 Comment
  CLARK-A1528-1203  Petunia parviflora John C. Roos 1937-6-7 514 Riverside Comment
  CHSC99047  Peucephyllum schottii LeRoy Gross 2005-3-3 1568 Riverside Colorado Desert; Northeastern Colorado Desert region: Palen Mountains, south side. Near end of old prospect road. Growing on rocky cliff above canyon. 68 Comment
  JOTR31908  Peucephyllum schottii La Doux, Tasha, M. Harding, K. Kain, E. Babich 2011-3-22 2155 Riverside Joshua Tree National Park. West Cottonwood Mountains; bouldery side canyon leading into southeast Pinkham Wash Comment
  POM48451  Peucephyllum schottii P. A. Munz, D. D. Keck 1925-3-7 9347 Riverside Painted Canyon, Mecca. Comment
  RSA471969  Peucephyllum schottii Robert Gustafson 1981-4-7 2149 Riverside Salt Creek Wash, southern end of the Orocopia Mts. 91 Comment
  RSA770299  Peucephyllum schottii Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4584 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR162621  Phacelia affinis Nathan Moorhatch 2003-3-19 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, Cathedral City, Whitewater River channel at Date Palm Drive 91 Comment
  RSA426005  Phacelia ambigua N. C. Cooper 1949-4-8 3258 Riverside Mecca Pass east of Indio 457 Comment
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Sep 7 2011
  UCR148850  Phacelia ambigua Chet McGaugh 2005-1-5 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, c. 1 mi. north of the Imperial Co. line along Coachella Canal right-of-way 21 Comment
  RSA0043369  Phacelia ambigua var. ambigua Marc A. Baker, Amy Robinson, Chris Hackbarth, Michelle Cloud-Hughes 2013-3-19 17711 Riverside Palo Verde Mesa, 14 km SW of Blythe, 5 km ENE of north end of the Mule Mountains. Comment
  UCR42377  Phacelia brachyloba N. M. Fellows, A. C. Sanders, A. Strickland 1986-4-8 181 Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Oasis de Los Osos Preserve, off Snow Creek Canyon at the N foot of the San Jacinto Mountains, 1 mi west of Snow Creek Village 489 Comment
  RSA427708B  Phacelia campanularia Ora M. Clark 1929-2-23 1588 Riverside North Whitewater. Comment
  JOTR35279  Phacelia campanularia subsp. vasiformis Andre, Jim 2012-4-16 20979 Riverside Joshua Tree National Park. along Cottonwood Spring Road, approx. 6 mi. south of the North Entrance at Twin Tanks parking area. 1196 Comment
  UCR225598  Phacelia cicutaria var. hispida A. C. Sanders, T. B. Salvato 2011-3-29 38842 Riverside Peninsular Range; Edge of Gavilan Hills, Meadowbrook area, between Perris and Lake Elsinore, along Hwy 74 at Wasson Canyon Rd. and to c. 1/2 between Wasson & Hammack Ave. 500 Comment
  UCR148465  Phacelia crenulata John F. Green, Chet McGaugh 2005-1-19 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, 1.1 mile transect along Coachella Canal right-of-way, between siphons 24 and 25, NE of Hunters Spring, near S base of Orocopia Mtns. 23 Comment
  UCR16832  Phacelia crenulata W. C. Anderson 1968-4-22 680422- 9 Riverside Sonoran (Colorado) Desert, 2 mi. south of Cottonwood Guard Station, Joshua Tree National Monument [now Park] Comment
  UC1595664  Phacelia crenulata var. ambigua W. Wisura, J. Dolan, M. Wall 1992-3-24 4619 Riverside Box Canyon Rd 5.5 mi ne Mecca; Lowdesert Comment
  UC881060  Phacelia crenulata var. ambigua Aven Nelson and Ruth A. Nelson 1939-3-29 3332 Riverside near Hidden Springs (near Mecca) Comment
  UC665895  Phacelia crenulata var. minutiflora Ira L. Wiggins 1941-3-27 9669 Riverside about 4 mi ne Desert Center (on road to Rice) Comment
  RSA0007629  Phacelia davidsonii P. A. Munz, D. Keck 1923-6-14 7068 Riverside Santa Ana Mountains: Glen Ivy Trail to Santiago Peak. 1463 Comment
  CAS-BOT-BC133955  Phacelia distans Milo S. Baker 1928-4-3 3310 Riverside Palm canon Comment
  CAS-BOT-BC133967  Phacelia distans L. R. Abrams 1926-3-25 11052 Riverside between Banning and Cabazn Comment
  RSA0120303  Phacelia distans Duncan S. Bell 2016-4-16 9310 Riverside Whitewater Watershed; Whitewater Canyon; collecting in Rainbow Canyon, approximately 2.5 air miles east northeast of Kitching Peak. 1023 Comment
  RSA428216  Phacelia distans Robert Gustafson 1983-3-27 2486 Riverside Dry rocky canyon southwest of Lake Cahuilla . Comment
  SBBG101782  Phacelia distans S. Boyd with T. Ross, M. Hammitt 1991-5-2 6067 Riverside SW and W flanks of Billy Goat Mtn, 3 mi N of Hwy 79, 1 mi W of Hwy 371, N of Aguanga 600 Comment
  RSA562120  Phacelia minor Steve Boyd 1992-4-14 6786 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Along Verdugo Trail from Tenaja Trail to Bluewater Trail in upper watershed of Bluewater Canyon, S of Sitton Peak. 793 Comment
  UC974998  Phacelia minor Rimo Bacigalupi and J. F. MacBride 1952-3-30 3552 Riverside along US 395 2.6 mi n Murrieta (w-facing hillslope between Wildomar and Murrieta, sw Riverside Co.) Comment
  UCR16560  Phacelia minor Dorothy Detrich 1966-5-4 23 Riverside San Jacinto Mtns, Old Banning to Idyllwild Rd 732 Comment
  UCR27195  Phacelia minor Marlyce Myers 1980-4-21 s.n. Riverside Perris Basin, Motte Reserve, 2.5 mi NW of Perris 518 Comment
  RSA74795  Phacelia pedicellata F. W. Peirson 1920-2-16 970 Riverside Palm Canyon Stream, Near foot of Alkali Canyon east of Palm Canyon, Riverside County. Comment
  UC495208  Phacelia pedicellata Philip A. Munz 1932-3-14 12012 Riverside Magnesia Springs Canyon Coachella Valley 91 Comment
  UCR116474  Phalaris paradoxa A. C. Sanders, T. B. Salvato 2001-5-25 24374 Riverside San Jacinto Valley, west end of Hemet-Ryan airport runway, 50-200 m east of Warren Rd. and 100-200 m north of Stetson Ave. 457 Comment
  UCR167933  Phalaris paradoxa T. B. Salvato, Gregg Miller 2005-6-3 1361 Riverside Peninsular Range; Perris-Aguanga Basin Region, San Jacinto River c. 2.5 mi SSW of Perris, 1.5 mi downstream of Goetz Road where the river leaves the Perris Plain and enters the hill area above Railroad Canyon 427 Comment
  RSA489619  Phlox austromontana D. Charlton 1988-5-28 2113 Riverside Santa Rosa Mts. S of Hwy. 74 dirt road to Toro and Santa Rosa Peaks. Toro Camp Area. 2286 Comment
  JEPS1853  Pholistoma membranaceum Marjorie D. Clary 1932-4-3 1617 Riverside 1/4 mi. s.w. Indio (Deep Canyon); Colorado Desert, Deep Canyon 365 Comment
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Nov 1 2011
  LA89811  Phoradendron bolleanum subsp. densum Harlan Lewis; 1940-12-14 sn Riverside Santa Rosa Mountains, Pinon Flats Comment
  JEPS42602  Phoradendron californicum S. B. Parish 1920-3-26 20010 Riverside Colorado Desert, Indian Wells Comment
  LA209842  Phoradendron californicum N. Dunn; A. M. Martin 1932-3-26 sn Riverside Shavers' Well Comment
  RSA727012  Phoradendron californicum Naomi S. Fraga, Lisa Rojas 2005-2-10 1413 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 502 Comment
  UCR169925  Phoradendron californicum A. C. Sanders, J. Andre , P. J. MacKay, Tim Thomas & CNPS Fld Trip 2005-2-26 29129 Riverside Sonoran (Colorado) Desert, SE of Hwy 177 toward dunes above Palen Dry Lake, SE end of Coxcomb Mtns. 168 Comment
  RSA727246  Phoradendron densum John F. Green 2008-1-18 s.n. Riverside Gavilan Hills: 5.5 miles WNW of Perris, c. 0.5mi. north of Santa Rosa Mine Rd. and 0.75 mi SE of Ida Leona Mine. 671 Comment
  UCR22085  Phoradendron densum Steve Boyd 1980-5-3 184 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 625 Comment
  UCR88733  Phoradendron densum A. C. Sanders 1995-4-13 16482 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Devil's Garden, E end of the mtns., 2.1 mi west of Hwy 62 on Pierson Avenue and dirt extension, 1.7 mi above Sierra Blvd. 793 Comment
  SD187490  Phoradendron macrophyllum Scott D. White, Angelia Carey 2004-4-16 10156 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent slopes 548 Comment
  RSA80966  Physalis crassifolia G. R. Campbell 1952-4-6 18415 Riverside 2 mi. s. of jct. of Cottonwood Springs road, road through Joshua Tree National Monument, south from 29 Palms. 884 Comment
  UCR5866  Physalis crassifolia O. F. Clarke 1966-10-15 661015- 11 Riverside San Jacinto/Santa Rosa Mtns., end of Big Horn Rd. 915 Comment
  RSA718292  Physalis crassifolia Michael Honer, L. Hulse 2004-4-2 1873 Riverside Blind Canyon; appx. 1/2 mi. N of Desert Hot Springs 488 Comment
  SEINET10964652  Physalis crassifolia David B. Dunn 1946-2-22 Dunn 1955 Riverside Collected in mud flats dry caked and split. All american canal catch basin from Desert washes. Oracopia mts. Ne of the saltan sea. Very arid country. Comment
  RSA637527  Physalis philadelphica Scott D. White 1998-9-4 7122 Riverside Beaumont: 'Oak Valley Golf Course' Flood detention basin along intermittent channel just above (i.e N side) of golf course. 762 Comment
  UCR260255  Physaria tenella A. C. Sanders, Jim Malusa 2015-3-11 41395 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Gasline Road at junction with road to Observation Point Slats, US Navy Chocolate Mountains Aerial Gunnery Range 723 Comment
  UCR269855  Physaria tenella A. C. Sanders, Jim Malusa 2016-3-17 42359 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, along Gasline Road 2.85 miles south of Bradshaw Trail 701 Comment
  RSA370843  Picris echioides R. F. Thorne, Steve Boyd, E. W. Lathrop 1985-7-18 61274 Riverside Sandia Canyon, De Luz-Murrieta Road 260 Comment
  UCR60764  Pilularia americana R. F. Thorne 1973-5-23 43854 Riverside Santa Rosa Plateau, north side of Mesa de Colorado 610 Comment
  UC1571810  Pinus Bruce Zobel September 1950 BMH 7 Riverside n Idyllwild (on road to Black Mt.); San Bernardino National Forest 2133 Comment
  UCR167862  Pinus T. B. Salvato, John F. Green 2004-5-27 647 Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1463 Comment
  UCSB9212  Pinus jeffreyi Koran, Jr., John 1958-5-16 Riverside 5.2 miles east of Idyllwild on Idyllwild-Banning Hwy. 1584 Comment
  SFV268  Pinus monophylla M. L. Vincent, R. H. Swade 1963-10-19 440 Riverside Roadside on California state Highway 74, near the road to Pinyon Flat. 1220 Comment
  HSC86141  Pinus ponderosa B. Freeman 1969-3-25 690325 Riverside James Reserve, San Jacinto Mtns., N of James' House Comment
  CAS-BOT-BC72837  Pinus quadrifolia B. D. Stark 1931-8-29 1324 Riverside Vandeventer Flat, San Jacinto Mts. 1371 Comment
  HSC90098  Pinus quadrifolia Amy Austin, Tony LaBanca, Noreen McClintock 1990-3-15 15 Riverside San Bernardino National Forest, 0.4 mi. N of S boundary on Hwy. 371 1159 Comment
  MACF019830  Pinus quadrifolia B. Thomas 1967-10-1 52 - Riverside Hwy. 74 coming up from Palm Desert in the San Jacinto Mountain Range 1371 Comment
  UCR19284  Pinus quadrifolia John C. Roos 1947-4-5 3436 Riverside San Jacinto Mtns., Head of Thomas Valley 1463 Comment
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Oct 25 2011
  UCSB143  Pinus quadrifolia White, Arthur 1960-5-15 Riverside 75 yds. n. of road to Anza, 0.4 mi. w. of its junction with Hwy. 74 Comment
  POM319568  Piperia Patricia Wilder 1968-7-5 4323 Riverside Forested area near Idyllwild, San Bernardino National Forest, Strawberry-Little Tahquitz Creek Drainage Area, San Jacinto Mountains. Alt: 6100 ft. 1860 Comment
  RSA701503  Piperia transversa Naomi Fraga, Sarah J. De Groot 2004-7-8 1300 Riverside On Chimney Flats Road (5S06) near intersection of 5S04 (the road to Alvin Meadows). 1524 Comment
  UCR270756  Piptatherum miliaceum T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8369 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  UCR147039  Plagiobothrys arizonicus L. C. Wheeler 1976-3-30 s.n. Riverside San Jacinto Mtns, Falls Creek, north side of Mount San Jacinto 549 Comment
  UCR116773  Plagiobothrys canescens A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23894 Riverside Perris-Aguanga Basin region, Tucalota Creek along gasline right-of-way, SE of French Valley Airport, off Borel Rd. in NE Murrieta 396 Comment
  UCR20688  Plagiobothrys canescens O. F. Clarke 1980-4-26 s.n. Riverside Menifee Valley Area, south of Sun City a few miles. 1.5 miles west from the intersection of Holland and Haun Roads, 2 miles SW of the intersection of Newport Rd and Hwy 395 473 Comment
  UCR135986  Plagiobothrys collinus A. C. Sanders, Kerry Knudsen, T. B. Salvato 2004-5-18 27900 Riverside Peninsular Range, summit ridge of Alberhill Mountain, along dirt road 503 Comment
  UCR230215  Plagiobothrys collinus A. C. Sanders 2011-4-6 38986 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  RSA674552  Plagiobothrys collinus var. californicus Scott D. White 2000-5-1 7747 Riverside Corona: Western foothills of Santa Ana Mountains near Bedford Canyon. 351 Comment
  UC1605426  Plagiobothrys collinus var. fulvescens Steve Boyd 1986-4-2 1594 Riverside Harford Springs County Park Gavilan Hills, Gavilan Hills, Harford Springs County Park 609 Comment
  UCR153369  Plagiobothrys collinus var. fulvescens LeRoy Gross, Valerie Soza 2003-5-8 835 Riverside Peninsular Ranges; San Jacinto Mountains region, North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 762 Comment
  UCR121788A  Plagiobothrys leptocladus A. C. Sanders, Carolyn Washburn 2001-4-17 24042 Riverside San Jacinto Valley, west edge of Hemet, SW corner of Florida Ave. (Hwy 74) and Warren Rd. 457 Comment
  UCR234432  Plagiobothrys leptocladus Jeremiah George 2012-3-4 s.n. Riverside Peninsular Range; Elsinore Trough, Lake Elsinore area, south of Nichols Rd. and east of Baker St. 387 Comment
  SBBG94832  Plagiobothrys nothofulvus E. LaRue 1990-4-10 Riverside midway between Pauba Valley and Wolf Valley; 0.5 mi N of the Pechanga Indian Reservation 365 Comment
  UCR171893  Plagiobothrys nothofulvus John F. Green 2006-4-25 s.n. Riverside Peninsular Ranges, Temecula, Southern California Edison right of way between residential areas, N-S corridor between S General Kearny Road and La Serena Way; east of Veterans Park 366 Comment
  POM13801  Plagiobothrys tenellus P. A. Munz 1922-4-30 5133 Riverside Tucalota Creek, south of Hemet Comment
  UCR116992  Plagiobothrys tenellus A. C. Sanders, T. B. Salvato 2001-5-3 24071 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  SD90575  Plagiobothrys undulatus Robert F. Thorne, Eatl Lathrop 1969-5-12 37931 Riverside Santa Rosa Plateau; large vernal marsh on south end of Mesa de Colorado, Rancho California. 625 Comment
  SDSU21873  Plagiobothrys undulatus Michael G. Simpson, Laura Benedict, Zack Principe, Lee Ripma, Nuri Benet-Pierce, Andy Siekkinen 2016-5-7 3978 Riverside Santa Rosa Plateau Ecological Reserve. Across street from vernal pool trail, ca. 4 miles north on road from Visitor's Center. 636 Comment
  VVC2184  Plagiobothrys undulatus Tim Thomas, Bill Baker 1983-6-30 579 C Riverside Santa Rosa Plateau, Burro Mesa 630 Comment
  RSA562442  Plantago lanceolata Steve Boyd, Tim S. Ross 1992-5-5 7262 Riverside Southern Santa Ana Mtns, San Mateo Canyon Wilderness area. Northwest of Oak Flats along Verdugo Trail, between jct with Bluewater and Lucas Canyon Trails. 762 Comment
  CSUSB1314  Plantago major Margaret-Lee Dean 1965-4-23 Riverside 3908 Linwood Place, Riverside 262 Comment
  JOTR35385  Plantago ovata Harding, Mitzi, J. Hoines, E. Kramer 2012-2-2 173 Riverside Joshua Tree National Park. southeast Coxcomb Mountains; SE facing slopes and steep drainages 289 Comment
  UC68707  Plantago ovata H. M. Hall Apr 1905 5827 Riverside near Indio; Colorado Desert 0 Comment
  UCD124529  Plantago ovata LeRoy Gross; Leland Lubinsky, Victor Steinmann, Linda Worlow 2005-2-17 1439 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. Near 33 deg. 37'32'N, 115 deg. 19'35'W: UTM 3721895N, 655238E to 33 deg. 36'52N, 115 deg. 19'54': UTM 3720669N, 654757E. 479 Comment
  RSA27476  Plantago ovata var. fastigiata I. L. Wiggins 1941-3-24 3588 Riverside East side of Salton Sea, 1 mile north of Imperial Co. Line Comment
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Feb 20 2013
  UCSB8788  Plantago ovata var. fastigiata Bell, David 1969-3-31 Riverside River Bend Campground; along U.S. Highway 95; 15 miles north of Blythe, Mojave Desert 152 Comment
  UCR84590  Plantago patagonica Scott D. White, S. Ogg 1994-4-21 1972 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  CSUSB1033  Platanus racemosa A. Belding 1967-5-12 S.N. Riverside B.S.A. Camp Evans, at the end of Indian Hill Rd. Riparian Valley Comment
  POM1499  Platanus racemosa I. M. Johnston 1917-4-4 1094 Riverside Andreas Canyon, near Palm Springs. 229 Comment
  RSA725853  Platanus racemosa R. E. Riefner 2006-9-19 6 -445 Riverside Temecula Valley, c. 0.2 mi. west of I-15 Freeway along Temecula Creek, head of Santa Margarita River. 301 Comment
  UC212472  Platanus racemosa Ivan Johnston Apr 4 1917-Apr 6 1917 1094 Riverside Andreas Canyon Colorado Desert (along creek) 304 Comment
  SEINET10763688  Platanus racemosa R. Allen, Fred M. Roberts 2007-6-22 Allen s.n. Riverside SE of Hemet, Bautista Cyn, ca. 4 road mi SE of jct Bautista Cyn Rd & Fairview Ave. UTM Zone 11S; 3726312mN; 05152050E. 727 Comment
  UC167976  Platystemon californicus Katharine Brandegee and Charlotte M. Wilder May 12 1905-May 17 1905 Riverside Wilders near Riverside; near Riverside Comment
  RSA751414  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-12-16 08 -369 Riverside City of Temecula, Pechanga Pkwy. at Pechanga Resort Dr. 338 Comment
  UC1608230  Plectritis ciliosa subsp. insignis Steve Boyd, Tim Ross, Orlando Mistretta 1992-3-31 6761 Riverside Tenaja Trail from junction w Morgan Trail south to Pigeon Spring area, San Mateo Canyon Wilderness Area Pigeon Spring; Santa Ana Mountains, San Mateo Canyon Wilderness Area 670 Comment
  UCR102852  Plectritis ciliosa subsp. insignis A. C. Sanders 1997-4-3 20153 Riverside Lake Skinner area, near north foot of Black Mountain, slopes south of Crown Valley 726 Comment
  JOTR16785  Pleuraphis rigida Walters, Jim 1967-5-12 s.n. Riverside Joshua Tree National Park. LOST HORSE RANGER STATION ACCESS ROAD 1341 Comment
  RSA690982  Pleuraphis rigida Scott D. White, Michael Honer 2003-5-14 9306 -A Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (='Superior') Gypsum Mine. 76 Comment
  RSA695628  Pleurocoronis pluriseta J. R. Bruff 1933-1-1 s.n. Riverside Travertine Point, south of Indio. Comment
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Oct 30 2011
  UCR31855  Pluchea purpurascens M. Hamilton 1983-10-4 s.n. Riverside Riverside, Just outside the Riverside city limits between Woodcrest and Edgemont, east of Trautwein Ave. & south of Alessandro Blvd. 488 Comment
  SD84905  Pluchea sericea Nancy Ryan Zabriskie, W. Zabriskie 1972-3-28 484 Riverside North canyon, Andreas Canyon drainage, east slope San Jacinto Mountain 609 Comment
  UCR163656  Pluchea sericea Scott D. White 1993-7-1 1607 Riverside Peninsular Range; Perris-Aguanga Basin Region, Wilson Creek, at point where it crosses Sage Rd (Hwy R3), c. 2 rd. miles N of Radec 494 Comment
  UCR202574  Poa pratensis Scott D. White, Justin M. Wood 2008-7-8 12390 Riverside San Jacinto Mountains, Johnson Meadows 1488 Comment
  RSA523521  Poa secunda Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 3980 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  SEINET244233 Image available Poa secunda A. C. Sanders, Mark Elvin; Julie M. Vanderwier 2002-4-9 24939 Riverside The Badlands; hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 610 Comment
  UC219083  Polygonum bistortoides P. A. Munz 1922-7-6 6001 Riverside Tahquitz Valley San Jacinto Mts. 2194 Comment
  UCR160892  Polygonum fagopyrum T. B. Salvato 2002-10-16 106 Riverside Upper Santa Ana River Basin/San Bernardino Valley, Riverside, residence at 1009 Bascomb Drive 305 Comment
  UCR111569  Polygonum lapathifolium Mitch Provance 1999-5-4 1682 Riverside San Bernardino Valley Region, Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
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Dec 10 2010
  POM259113  Polygonum sawatchense subsp. sawatchense P. A. Munz 1938-8-14 15359 Riverside Virgin Spring, Santa Rosa Peak. 2287 Comment
  RSA701407  Polypodium californicum Steve Boyd, Aydee Virgen 2004-4-13 10894 Riverside San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon. Comment
  UCR149993  Polypodium californicum Scott D. White, Angelia Carey 2004-4-16 10181 Riverside San Jacinto Mountain foothills, Indian Creek and adjacent slopes 610 Comment
  UCSB62522  Polypodium californicum Kiefer, Lawrence 1963-11-3 Riverside Reche Canyon (S of Loma Linda), W side, N-running ravine just inside county line. 426 Comment
  UC70779  Polypogon australis H. M. Hall June 1900 1384 Riverside vicinity Riverside 304 Comment
  UCR167199  Polypogon monspeliensis S. J. Myers 2005-3-24 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, east of N end of Salton Sea, along Coachella Canal 12 Comment
  UCR231751  Polypogon monspeliensis John F. Green 2008-4-21 03- 01 Riverside Peninsular Range, south edge of Perris, drainage way between housing tracts, west of Goetz Rd. and Alabaster Loop, east of the San Jacinto River 457 Comment
  SEINET12976199  Populus deltoides Ronald L. Hartman 1972-3-23 3233 Riverside Hwy 111, 2 mi N of Palm Springs. Comment
  SEINET10932113  Populus fremontii David B. Dunn 1946-3-17 Dunn 2101 Riverside At pushawalla palms by the springs. Indio hills. Comment
  JEPS64552  Populus fremontii subsp. fremontii I. T. Weeks 1930-3-30 Riverside 13 mi e and 5 mi n Shavers Well (Eagle Mts.); , n of Shavers Well Comment
  SD157478  Populus trichocarpa Bill Knerr Jan 1998 Riverside Old Hwy 395, 9 miles south of Hwy 76, flat area Comment
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Sep 7 2013
  HSC6072  Porophyllum gracile C. L. Hitchcock 1966-3-21 24330 Riverside In Mule Mts.; 20 mi. SW of Blythe Comment
  UCR41826  Porophyllum gracile A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6106 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  RSA788878  Potamogeton diversifolius Gary D. Wallace 2003-7-8 4046 Riverside Hidden Lake. Comment
  UC217966  Potamogeton pusillus var. pusillus I. M. Johnston 1922-5-21 5523 Riverside Hemet Valley, on Garner Ranch Hemet Valley; San Jacinto Mountains 1386 Comment
  RSA761864  Potentilla glandulosa Shawn Krosnick, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 698 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  UCR121241  Potentilla glandulosa subsp. reflexa Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2272 Riverside San Jacinto Mtns, Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest 1700 Comment
  RSA0084500  Potentilla nevadensis E. C. Jaeger 1921-1 s.n. Riverside Tahquitz. San Jacinto Mts. Comment
  CAS-BOT-BC356220  Prenanthella exigua Annie M. Alexander; Louise Kellogg 1941-5-23 2221 Riverside Colorado Desert. 3.5 miles northeast of Cottonwood Spring, Eagle Mountains 1066 Comment
  UCR89888  Prenanthella exigua A. C. Sanders, E. J. Lawlor 1992-4-4 12141 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  LA47456  Prosopis glandulosa var. torreyana Charles Bogert; 1932-4-17 4008 Riverside Indian Wells Comment
  JEPS46164  Prosopis pubescens Marjorie D. Clary 1936-9-27 Riverside Coral Reef ranch Colorado Desert (nw arm of Colorado Desert) Comment
  SEINET10903690  Prosopis pubescens David B. Dunn, A. Folsom 1948-6-17 Dunn 3793 Riverside At camp in Pushawalla Canyon under palms. Comment
  UC12740  Prunus emarginata H. M. Hall July, 1901 Riverside Fuller's Mills Mountains, from w side Fuller's Mills Mountains; San Jacinto Mountains, Fuller's Mills Mountains 1584 Comment
  HSC99161  Prunus fasciculata var. fasciculata Paul J. CaraDonna 2009-3-17 132 Riverside Jumbo Rock Campground, Joshua Tree National Park. Comment
  RSA180284  Prunus ilicifolia E. W. Lathrop 1965-4-26 5696 Riverside 4 mi. W. of Murrieta. Comment
  RSA787088  Prunus ilicifolia Doris Bowers 1972-4-15 1817 Riverside Near SBCM dig on Pulgas Creek Rd., Rancho Calif. 396 Comment
  UC1128421  Prunus ilicifolia R. St. John 1931-4-17 207 Riverside sw of Mockingbird Canyon 304 Comment
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Apr 2 2011
  UC1979536  Prunus ilicifolia subsp. ilicifolia Darin L. Banks, Peter Morrell 1995-5-4 298 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove, along the Woodchuck Trail. Comment
  RSA472309  Psathyrotes ramosissima Christopher Davidson 1979-4-4 7681 Riverside Orocopia Mts, lower end of Box Canyon on Box Canyon road, 4.4 miles E of Mecca 213 Comment
  UC1595718  Psathyrotes ramosissima W. Wisura, J. Dolan, and M. Wall 1992-3-24 4622 Riverside 6.0 mi ne Mecca (on Box Canyon Rd.) Comment
  UCR245244  Psathyrotes ramosissima Jim Andre 2012-3-19 21337 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley along unnamed dirt road 0.3 mi. N. of Hwy 177, 5.7 mi. NE of junction with I-10 freeway 157 Comment
  UCR29849  Psathyrotes ramosissima George K. Helmkamp 1983-3-24 383- 7 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at junction of the Graham Pass and Chuckwalla Springs Roads 229 Comment
  SEINET10842589  Psathyrotes ramosissima David B. Dunn, Howard Brown; Elizabeth M. McClintock 1947-3-15 Dunn 2889 Riverside Pushawalla Canyon Biota. Indio Hills. In dry wash. Comment
  RSA463259  Pseudognaphalium biolettii Steve Myers 1988-2-1 s.n. Riverside Boulder Springs development, immediately SE of intersection of Hwy 60 and Nason St, Moreno Valley. 518 Comment
  UCR199566  Pseudognaphalium biolettii Scott D. White 2004-4-26 10263 Riverside San Jacinto Mountain Foothills, Soboba Indian Reservation, Indian Creek Watershed 671 Comment
  OBI51897  Pseudognaphalium californicum Steve Myers 1988-1 s.n. Riverside Temescal Cyn, ca 1/4 mi W of intersection of hwy I-15 & Indian Truck Trl 381 Comment
  SD129594  Pseudognaphalium californicum Ed LaRue May 1989 Riverside Hills east of Beaumont, along Potrero Creek, 0.5 miles east of old San Jacinto Nuevo Y Potrero land grant 700 Comment
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Dec 21 2010
  JOTR35487  Pseudognaphalium luteoalbum La Doux, Tasha, D. Shade, S. De Groot, N. Fraga, L. Washburn 2013-4-26 3175 Riverside Joshua Tree National Park. Little San Bernardino Mtns, Upper Smithwater Canyon, NW of Quail Mtn. (Biodiversity Hunt stop2) 1295 Comment
  UCR140312  Psilocarphus brevissimus A. C. Sanders, Guy Bruyea 2004-4-2 27421 Riverside San Jacinto Valley, Tres Cerritos, c. 3 miles WNW of Hemet, east of the Lakeview Mtns., mouth of canyon on south side, just north of Rose Rd. 463 Comment
  SEINET7063441  Psilocarphus brevissimus var. multiflorus A. G. Vestal 1947-3-30 s.n. Riverside About 3.8 miles west of Sage on East Benton Road. Tucalosa Hills. UTM Zone 11, 499688mE, 3715592mN. (WGS84/NAD83). 527 Comment
  UCR166803  Psilocarphus chilensis R. E. Riefner Jr. 2005-4-22 05- 242 Riverside W side of Hwy 79, between Old Newport Road and Paton Road 469 Comment
  RSA713573  Psilocarphus tenellus var. globiferus R. E. Riefner 2005-4-22 05 -242 Riverside W roadside of Hwy 79 between Old Newport Road and Patton Road. 469 Comment
  UCR239508  Psilostrophe cooperi A. C. Sanders, Tim Thomas, T. B. Salvato 2012-11-1 40511 Riverside Sonoran (Colorado) Desert, Chuckwalla Bench, south of the Chuckwalla Mtns., along Bradshaw Trail 1 km SE of Augustine Rd. junction, large wash on SW side of road 695 Comment
  UCR151365  Psoralea macrostachya Scott D. White, Pam DeVries 2000-4-25 7734 Riverside Peninsular Ranges/ Perris-Aguanga Basin, Temescal Valley, Corona area: E foothills of the Santa Ana Mtns, just above citrus groves 518 Comment
  UCR204230  Psorothamnus arborescens Valerie Soza, J. M. Porter, G. D. Wallace 2001-4-2 1092 Riverside Transverse Ranges,Little San Bernardino Mountains, mouth of Little Morongo Canyon, northeast of junction of Augusta Avenue and Little Morongo Drive, northwest of Desert Hot Springs 412 Comment
  HSC47347  Psorothamnus arborescens var. minutifolius Richard Spjut, Judy Adams 1978-11-22 5235 Riverside Colorado Desert: N of Palm Springs along Indian Ave. 0 Comment
  CAS-BOT-BC353590  Psorothamnus arborescens var. simplicifolius Carl B. Wolf 1932-5-25 3680 Riverside N base of San Jacinto Mountains, Snow Creek Canyon, 1 mile below fish hatchery 396 Comment
  SD116581  Psorothamnus arborescens var. simplicifolius Barbara Ertter, Jeffrey Strachan 1980-5-20 3568 Riverside West side Whitewater Hill, east side of Whitewater Wash, northwest end of Coachella Valley, north of I-10. 456 Comment
  UCR241192  Psorothamnus arborescens var. simplicifolius T. B. Salvato, Jeffrey Ross 1998-6-9 MOR- 374 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Lion Canyon up to fork in stream 720 Comment
  POM276882  Psorothamnus emoryi Lyman D. Benson 1933-3-31 4189 Riverside Salton Sea-Imperial Co. line. 61 Comment
  UC81886  Psorothamnus emoryi S. B. and W. F. Parish Apr 1882 93 Riverside Agua Caliente Comment
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Jul 12 2010
  UCSB3042  Psorothamnus emoryi Graney, Don 1953-3-21 Riverside 11 miles east of Indio-Colorado Desert Comment
  UCSB3043  Psorothamnus emoryi Mooney, Harold 1956-4-14 Riverside Turn off to Desert Hot Springs on Highways U.S. 60, 70, 99 Comment
  SEINET2063915 Image available Psorothamnus polydenius R. G. Engard, W. H. Earle 1973-10-10 154 Riverside 5 miles N of Cottonwood Springs, Joshua Tree National Monument. Comment
  CAS-BOT-BC340925  Psorothamnus schottii Robert F. Thorne; R. Rutherford 1964-4-12 33655 Riverside About 1 mile W of Turnoff to Cottonwood Wells, along Hwy 60-70 Comment
  RSA113923  Psorothamnus schottii Percy C. Everett, E. K. Balls 1956-5-2 31555 Riverside 4 mi. N from turn-off Hwy. 60/70, W of Desert Center, on rd. to Eagle Mt. Pumping Sta., 305 Comment
  RSA348945  Psorothamnus schottii Steve D. Boyd 1986-2-18 1312 Riverside Hwy 195, just W o fthe Coachella Canal, W base of Mecca Hills. Comment
  RSA404252  Psorothamnus schottii M. B. Dunkle 1933-3-4 3041 Riverside Painted Canyon, Colorado Desert. 30 Comment
  RSA498752  Psorothamnus schottii Martha Hilend 1928-3-24 115 Riverside Wash N of Palm Wash, SW of Fish Springs Comment
  RSA0022493  Psorothamnus schottii Bonnie C. Templeton 1930-4-9 1000 Riverside North of Palm Springs 305 Comment
  CAS-BOT-BC340964  Psorothamnus spinosus Roxana S. Ferris 1918-6-14 973 Riverside Between Palm Springs and Indian Wells Comment
  CAS-BOT-BC421251  Pterostegia drymarioides Geo. B. Grant 1898-3-15 s.n. Riverside Riverside Comment
  UCR123819  Pterostegia drymarioides Steven R. Hill 2001-5-3 33672 Riverside San Jacinto Mtns., NE-facing slopes of Mt. San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, c. 3.8 mi west of Calif. Hwy 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area 793 Comment
  RSA134218  Punica granatum Peter H. Raven, Richard Snow 1957-7-26 11081 Riverside Banning to Idyllwild road, 6.5 miles N of road to Twin Pines Ranch, San Jacinto Mts. Riverside County Comment
  UC1092709  Purshia tridentata var. glandulosa Eamor C. Nord 1957-5-14 16 Riverside 1 mi e Nightingale 1310 Comment
  POM265846  Quercus X munzii W. Egbert Schenck 1942-10 s.n. Riverside Joshua Tree National Monument. South end of Mojave Desert. Comment
  UCR108800  Quercus X munzii Beth Corrigan, John Corrigan 1966-6-13 s.n. Riverside Southern Mojave Desert, Joshua Tree National Monument [now Park], Queen Valley area, 200-300 ft. south of Ivanpah Tank 1280 Comment
  UCR15350  Quercus X munzii Richard Minnich 1976-4-25 s.n. Riverside Southern Mojave Desert, Joshua Tree National Monument [now Park], Live Oak Tank 1311 Comment
  RSA559451  Quercus agrifolia var. agrifolia Steve Boyd, T. S. Ross 1992-5-5 7217 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Oak Flats area east of Verdugo Potrero. 732 Comment
  POM13780  Quercus berberidifolia P. A. Munz, I. M. Johnston 1922-5-5 5150 Riverside Jack rabbit Trail, near Beaumont. 732 Comment
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Mar 21 2011
  SD186232  Quercus berberidifolia A. C. Sanders, Mark Elvin, M. S. Enright 2002-4-16 24970 Riverside Laborde Canyon and adjacent slopes and side canyons, 1.0 mile east of Mt. Eden, southwest of Beaumont. 548 Comment
  UC64103  Quercus berberidifolia H. M. Hall 1901-8-6 2644 Riverside Canyon of the San Jacinto River San Jacinto Mountains 1066 Comment
  UCD45551  Quercus chrysolepis E. W. Lathrop 1966-5-29 6383 Riverside Mail Divide Truck Trail between El Carriso and Santiago Peak, Cleveland Nat'l. Forest, Riverside Co. Elevation 4000 1219 Comment
  SEINET12028629  Quercus chrysolepis L. A. Bellue, Schlising, R. A. 1970-1 2954 Riverside Morris Ranch Road;3.3mi N of Hwy-74 Comment
  SBBG44658  Quercus cornelius-mulleri W. B. Holt 1941-10-21 9 -1941 Riverside near Split Rock, Joshua Tree Nat Monument Comment
  UCR23939  Quercus cornelius-mulleri John C. Roos 1946-10-5 3114 Riverside San Bernardino Mtns., Dry Morongo Canyon 732 Comment
  CAS-BOT-BC257778  Quercus dumosa P. S. Manos 1988-10-27 668 Riverside Gavilan Rd., in Wildlife Preserve 600 Comment
  UCR273241  Quercus durata var. gabrielensis Mitch Provance, Jeremiah George 2012-1-30 17371 Riverside Badlands of Western Riverside County, Beaumont, near N base of Mt. Davis, Cooper's Creek (tributary of San Timoteo Creek), about 2000 ft. W of Bolo Ct. and 2500 ft. S of W 4th St. 762 Comment
  RSA597057  Quercus engelmannii D. L. Banks, Lauren Raz 1996-11-5 1160 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, S of San Gabriel Church; Along a newly established firebreak along a NW-SE running ridgeline, near the water tank. 402 Comment
  RSA666646  Quercus engelmannii A. C. Sanders, Kent Beaman 2002-5-10 25047 Riverside Santa Ana Mtns., Santa Rosa Plateau: hills west of the head of De Luz Creek, 0.4 mi south of Tenaja Rd. on west side of Calle Roble near Avenida Matorral. 671 Comment
  SD129201  Quercus engelmannii B. Pitzer 1988-6-8 1046 Riverside Rancho California area, avocado grove south of Avenida del Oro, just past Calle Capistrano Comment
  RSA39267  Quercus john-tuckeri P. A. Munz 1946-10-21 11592 Riverside Live Oak Tank, Joshua Tree National Monument. 1220 Comment
  RSA761236  Quercus kelloggii Shawn Krosnick, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 717 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  UCSB1189  Quercus kelloggii Waian, Lee 1960-5-14 Riverside Montane slope of the San Jacinto Mtns.; 11 miles from Banning on the road to Idyllwild 1219 Comment
  UCR213623  Rafinesquia californica A. C. Sanders, Matthew Malle 2010-4-23 37994 Riverside Peninsular Range, Menifee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  JEPS23077  Rafinesquia neomexicana Reino Alava with R. Bacigalupi, Dr. and Mrs. Rolla Tryon 1958-3-3 1832 Riverside 27 mi s Vidal (along U.S. Highway 95, in flood plain of the Colorado River, ne of the Big Maria Mts., e Riverside County); Colorado River 97 Comment
  JOTR32438  Rafinesquia neomexicana La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler, B. Truesdell, D. Shade 2011-4-26 2269 Riverside Joshua Tree National Park. Pleasant Valley, southwestern edge of Hexie Mountains; near Squaw Tank; sandy flats among large granitic boulders and foothills (Stop 2) 1063 Comment
  JOTR34052  Rafinesquia neomexicana La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2952 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; loamy-gravel, steep, southeast facing slopes above Lost Horse Mine Trail Comment
  UC566695  Rafinesquia neomexicana Margaret Stason 1927-3-12 Riverside Colorado Desert, Painted Canyon Comment
  UCR1520  Rafinesquia neomexicana W. R. Moberly 1962-3-25 620325- 03 Riverside Western Colorado Desert, Coachella Valley, 5 mi north of 1000 Palms, along old Hwy 99 305 Comment
  CAS-BOT-BC59508  Rhamnus crocea A. C. Sanders; G. Waines 1997-3-12 19877 Riverside Lake Sinner area: lower Rawson Canyon, just NE of the lake along the road. 457 Comment
  HSC93109  Rhamnus crocea Scott D. White 1996-4-14 3918 Riverside E of Hemet, San Jacinto River Wash near Valle Vista, N of Hwy. 74, 1.7 mi. W of USFS Cranston Fire Station 534 Comment
  SBBG87983  Rhamnus ilicifolia L. F. LaPre, J. Easton 1988-1-27 Riverside Santa Rosa Springs Ranch, Santa Rosa Plateau Comment
  UCR113734  Rhamnus ilicifolia Mitch Provance 2000-5-5 2019 Riverside Riverside, Box Springs Mtns., canyon c. 0.5 mi. NE of peak 2553 and c. 0.5 mi. SW of the old landfill off Pigeon Pass Rd. 488 Comment
  RSA0027937  Rhamnus ilicifolia John F. Emmel 1992-5-16 1222 Riverside Elsinore Mts: Ridgetop along Main Divide Road, 0.7 air mi east of El Cariso Guard Station. 902 Comment
  RSA471023  Rhododendron occidentale N. C. Cooper 1949-6-29 4339 Riverside East side of San Jacinto Mountains. 457 Comment
  CAS-BOT-BC168026  Rhus aromatica A. C. Sanders; Mark Elvin; Julie M. Vanderwier 2002-4-22 25014 Riverside The Badlands: Laborde Canyon and adjacent slopes and side canyons, 1 mile east of Mt. Eden, SW of Beaumont 549 Comment
  CAS-BOT-BC200732  Rhus aromatica A. C. Sanders; J. Goetzen 1996-5-1 18138 Riverside San Bernardino Mtns.: Morongo Indian Reservation, along dirt road in Hathaway Crk. Cyn., N of Banning 915 Comment
  CAS-BOT-BC167965  Rhus ovata H. S. Gentry 1954-7-25 14245 Riverside NW. of Aguanga along road to Sage Comment
  CAS-BOT-BC167969  Rhus ovata John C. Roos 1950-10-15 5007 Riverside Dry Morongo Canyon about 1 mile S. of Riverside-San Bernardino County line 609 Comment
  RSA297382  Rhus ovata Larry E. DeBuhr 1972-2-25 508 Riverside Santa Rosa Mountains along forest road 7S02 to santa Rosa Pk. 1738 Comment
  RSA516741  Rhus ovata Ed LaRue 1989-4-25 s.n. Riverside 2 mi (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouths of Rice and McVicker Canyons. 488 Comment
  UC219274  Rhus ovata P. A. Munz, I. M. Johnston 1922-5-18 5327 Riverside Comment
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Sep 24 2013
  UCSB3756  Rhus ovata Haller, John 1950-5-21 Riverside San Jacinto Mountains; Pinon Flat 1219 Comment
  RSA472815  Ribes cereum Louis C. Wheeler 1931-10-3 237 Riverside 1.5 miles N Tahquitz Peak, San Jacinto Mts. 2515 Comment
  CLARK-A1528-4129  Ribes indecorum John C. Roos 1947-3-15 3341 Riverside San Jacinto Mountains Comment
  RSA496659  Ribes indecorum A. C. Sanders 1988-1-30 7591 Riverside Eastern foothills of the Santa Ana Mts, midway beween Murrieta and Temecula. Los Cerritos Ranch and adjacent 80acre property to the NW, N of Cherry St, W of Adams Ave, S of Meadowlark Ridge Lane and Elm St. 366 Comment
  SD128273  Ribes nevadense R. Mitchel Beauchamp 1971-5-15 2422 Riverside San Jacinto Moutains Black Mountain Campground Comment
  CAS-BOT-BC173857  Ribes velutinum Samuel B. Parish 1894-2-25 s.n. Riverside Reche [Canon] Canyon Comment
  LA46160  Romneya coulteri W. Pequegnat; May 1927 sn Riverside Santa Ana Mountains, Glen Ivy Trail Comment
  UCR270314  Romneya coulteri T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8345 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 384 Comment
  UCR107815  Romneya trichocalyx D. L. Banks 1997-6-16 2060 Riverside NW Palomar Mtns., Agua Tibia Mtns.: Pechanga Indian Reservation, Hunter Lane and Moreno Road 377 Comment
  RSA789413  Rorippa curvisiliqua Naomi Fraga, Erin Tripp, Tom Kerrin-Torres, Michael Wall 2008-10-16 2614 Riverside Mount San Jacinto State Park; Hidden Lake 2652 Comment
  UCR111761  Rorippa nasturtium-aquaticum S. J. Myers, C. McGaugh 1996-5-17 s.n. Riverside Santa Ana River Valley, Corona, River Road bridge over the Santa Ana River 165 Comment
  RSA0086464  Rubus ursinus Mitch Provance 2013-4-8 413 -11 Riverside San Bernardino Valley: Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave. 226 Comment
  UCR265047  Rubus ursinus Mitch Provance 2013-4-8 413- 11 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  POM14993  Rumex acetosella Mary F. Spencer 1922-6-16 s.n. Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  SD51945  Rumex californicus Reid Moran 1962-7-7 9861 Riverside By Strawberry Creek, 2 miles SW of Idyllwild, San Jacinto Mts. 1550 Comment
  UCR91544  Rumex dentatus Chet McGaugh 1996-4-26 s.n. Riverside San Jacinto Valley, Hemet, 0.25 mi west of State St., between Esplanade and Cottowood 465 Comment
  RSA466099  Rumex hymenosepalus N. C. Cooper 1944-3-24 1011 Riverside Banning. 701 Comment
  SEINET4095114  Sairocarpus coulterianus O. M. Clark 1929-1 1686 Riverside South Cabazon, southern California. Comment
  UC64580  Salicornia subterminalis S. B. Parish 1897-6-18 4463 Riverside Menifee Comment
  CAS-BOT-BC129748  Salix bonplandiana Nancy Ryan Zabriskie; Walter Zabriskie 1971-2-13 335 Riverside Andreas Canyon, E slope San Jacinto Mts. 304 Comment
  POM319272  Salix exigua Patricia Wilder 1972-2-18 5361 Riverside North side of Norco, along the Santa Ana River at the end of Pedley St. 229 Comment
  SBBG54388  Salix exigua var. hindsiana P. Wilder 1971-9-29 5276 Riverside E of Hemet, Valle Vista at N end of Fairview Street, N of Florida Street Comment
  SBBG58896  Salix gooddingii F. R. Fosberg 1932-3-13 8065 Riverside Thousand Palms Cyn Comment
  UC492428  Salix gooddingii Carl W. Sharsmith 1932-3-20 14 Riverside 3 meters above mouth Diablo Canyon (near Clary's Coral Reef Ranch); Colorado Desert, foot of e slope Santa Rosa Mts. Comment
  CAS-BOT-BC108213  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 605 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  UC5060  Salix lasiolepis H. M. Hall 1901-7-17 2444 Riverside Tahquitz Creek San Jacinto Mountains 1889 Comment
  UCR3404  Salix lasiolepis John Minnich 1964-3-9 64-3-9- 2 Riverside Peninsular Range, City of Riverside. 'Two Trees Canyon' c. 0.25 mi. from end of Two Trees Road, near the east end of Blaine St. 366 Comment
  POM9287  Salix lasiolepis Philip A. Munz, R. D. Harwood 1920-2-28 3260 Riverside 2 mi. southeast of Corona 305 Comment
  UC1409163  Salsola paulsenii Philip A. Munz 1973-3-21 18330 Riverside between Indio and Palm Desert (across Highway 111 from Shields Date Gardens); between Indio and Palm Desert Comment
  SD119919  Salsola tragus Louis B. Ziegler 1976-6-20 549 Riverside Vacant land and borders in the San Jacinto Valley. 470 Comment
  RSA501031  Saltugilia australis Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3151 Riverside Agua Tibia Mountains. Vail Lake area, recent burn in hills just to SW of the dam. 487 Comment
  RSA0094999  Saltugilia splendens subsp. splendens R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38082 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  UC1080500  Saltugilia splendens subsp. splendens Verne Grant and Howard Latimer 1957-5-6 9984 Riverside in wash below Morongo Valley (San Bernardino-Riverside County); below Morongo Valley Comment
  UC63766  Salvia H. M. Hall 1897-5-28 578 Riverside vicinity Riverside (Gavilan road) Comment
  RSA0019791  Salvia apiana April Garbat, Kristin Forgrave, Naomi S. Fraga, Tyler Schappe 2013-5-21 72 Riverside Canyon west of San Bernardino National Forest boundary (San Jacinto Ranger District), north over edge from road from Cranston Fire Facility (off Highway 74, aka Florida Ave). Orange Grove Canyon. 618 Comment
  UCR11353  Salvia apiana Dennis E. Kucera 1971-6-2 s.n. Riverside Peninsular Range; Moreno Valley, Kucera residence, 11681 Dalehurst, Sunnymead (now part of city of Moreno Valley) 625 Comment
  UCR41318  Salvia apiana N. M. Fellows, A. C. Sanders 1985-5-7 175 Riverside San Jacinto Mountains, Oasis de los Osos Preserve, off Snow Creek Canyon at the N foot of the San Jacinto Mountains, 1 mi west of Snow Creek Village 488 Comment
  RSA0004067  Salvia apiana P. A. Munz, I. M. Johnston 1922-6-5 5170 Riverside Dry Morongo Wash, Colorado Desert. [county unspecified] Comment
  RSA0036087  Salvia apiana Norman C. Cooper 1944-5-19 1299 Riverside banning 701 Comment
  SEINET13947245 Image available Salvia apiana C. Epling, H. Lewis 1942-1 s.n. Riverside East of Pinon Flats Comment
  POM13283  Salvia apiana var. compacta P. A. Munz 1922-6-26 5828 Riverside Southern Slope of Santa Rosa Mts. 1707 Comment
  RSA12907  Salvia carduacea Carl B. Wolf 1935-4-7 s.n. Riverside 5 mi west of Val Verde in the Gavilan region. 457 Comment
  SDSU16683  Salvia columbariae Francis H. Bozzolo 2006-4-16 5 Riverside Santa Margarita Ecological Reserve, southern end, NNW of residence building, slope immediately behind avocado grove between 2 gullies. 229 Comment
  UCD125732  Salvia columbariae Gordon Pilone 1961-3-1 98 Riverside White Water Canyon, 1/2 mile below fish hatchery. 457 Comment
  UCR120937  Salvia columbariae A. C. Sanders, Mark Elvin, M. S. Enright 2002-4-16 24956 Riverside The Badlands, Laborde Canyon and adjacent slopes and side canyons, 1 mile east of Mt. Eden, SW of Beaumont 610 Comment
  UCR30092  Salvia columbariae George K. Helmkamp 1983-4-5 483- 27 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCSB5772  Salvia columbariae Graney, Don 1953-3-20 Riverside One half mile from White Water; up White Water Canyon Comment
  UCLA69705  Salvia eremostachya L. Haines and L. Erickson 1937-4-10 Riverside near road to Shumway (Palms to Pines highway) Comment
  SD103970  Salvia greatae J. L. S. Simpson 1968-3-17 Riverside Red Cloud Road, Salton Creek. Comment
  SDSU12926  Salvia mellifera Jutta Buschbom 1991-5-1 40 a Riverside SE-Slope, N-border of the Reserve, beyond an Avocado-grove, ca. 500m (15 min) NW from the field station. Santa Margarita Ecological Reserve, Temecula. 375 Comment
  UC667386  Salvia mohavensis Annie M. Alexander and Louise Kellogg 1941-5-21 2212 Riverside n slope Eagle Mountains; Colorado Desert 1280 Comment
  SEINET5265990  Salvia vaseyi Unknown 1995-5-3 1404 Riverside S of Palm Desert, at desert lookout over Coachella Valley along Hwy 74 Comment
  SFV3229  Salvia vaseyi P. G. Kilburn 1958-5-16 802 Riverside San Jacinto Mountains 5 miles south of Palm Desert on Palms-Pines Highway (Highway 74). 915 Comment
  POM4389  Sambucus mexicana O. W. Robinson 1916-3-29 s.n. Riverside Burton's Canyon south of Lake Elsinore. Comment
  RSA471473  Sanicula crassicaulis N. C. Cooper 1944-6-4 1368 Riverside Elsinore Mountain. Lookout at top. 1067 Comment
  UC796594  Sanicula graveolens LeRoy Abrams 1901-6-15 1840 Riverside Santiago Peak Comment
  RSA543585  Sanicula tuberosa Steve Boyd, L. Arnseth, Orlando Mistretta 1991-5-6 6137 Riverside Santa Ana Mountains, S side of Elsinore Peak. 1037 Comment
  RSA471125  Sarcodes sanguinea Christopher Davidson 1978-6-15 7396 a Riverside Santa Rosa Mountains. Santa Rosa Peak. Trail to the top. 2409 Comment
  UCR129891  Sarcodes sanguinea N. C. Cooper 1944-6-17 1404 Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1829 Comment
  UC1595752  Sarcostemma cynanchoides subsp. hartwegii W. Wisura, J. Dolan, and M. Wall 1992-3-24 4633 Riverside 13.1 mi. n.e. of Mecca (on Box Canyon Rd.) Comment
  RSA444802  Schedonorus arundinaceus J. C. Roos 1950-4-15 4743 Riverside West end of Fairmount Park Lake Comment
  RSA795927  Schismus arabicus Duncan S. Bell 2009-4-19 282 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  UCR279473  Schismus arabicus A. C. Sanders, Jim Malusa 2017-3-29 43197 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, large canyon 2.8 km south of the confluence of Red Canyon and Salt Creek 460 Comment
  RSA726531  Schismus barbatus Naomi Fraga, Sarah J. De Groot, Lisa Rojas, Lelenad Lubinsky 2005-2-10 1442 Riverside Along Palen Road near Hwy 177. 170 Comment
  UCR26326  Schismus barbatus John C. Roos 1940-3-3 912 Riverside Sonoran (Colorado) Desert, around Palm Springs 183 Comment
  RSA710173  Schoenoplectus acutus var. acutus A. C. Sanders 2004-5-12 27865 Riverside Elsinore Basin Region: Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek. 378 Comment
  OBI74594  Scrophularia californica David J. Keil 1983-4-15 16903 Riverside E of Temecula on SR79 Comment
  RSA650275  Scrophularia californica W. A. Reinke 1971-5-8 s.n. Riverside 7mi. N. of 2nd St. on [Highway] 71-74, Elsinore. Comment
  RSA425201  Scrophularia californica subsp. floribunda Bonnie C. Templeton, I. W. Clokey 1930-4-15 1480 Riverside North of Gavilan Peak. 550 Comment
  SD129505  Scutellaria mexicana A. C. Sanders 1989-9-19 9502 Riverside Chocolate Mountains Aerial Gunnery Range: 1.75 km south of Tabaseca Tank, along the wash above Tabaseca Target. 680 Comment
  RSA643417  Secale cereale N. M. Fellows 1982-5-29 s.n. Riverside Volunteer plants growing adjacent to Highway 79, 5 miles from Temecula Comment
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Mar 14 2013
  CAS-BOT-BC69811  Selaginella bigelovii Lewis S. Rose 1959-1-14 59014 Riverside White Water. 426 Comment
  SEINET7073445  Selaginella bigelovii A. G. Vestal 1963-4-25 s.n. Riverside Granite Rocks, about 1 mile west of Radec on Route 71 (presently Route 79). Coordinate datum: NAD27. Comment
  UC306715  Selaginella bigelovii I. M. Johnston 1917-4-4 1044 Riverside Palm Canyon 304 Comment
  SEINET6336353  Selaginella bigelovii S. B. Parish 1907-4-18 6110 Riverside Western border of the Colorado Desert 200 Comment
  UCD135485  Senecio flaccidus var. douglasii R. N. Raynor 1941-7-28 s.n. Riverside south border of county. Comment
  RSA518768  Senecio mohavensis O. F. Clarke 1973-4-1 s.n. Riverside Sonoran Desert, on a plateau above Box Canyon, along State Hwy 195, ca. midway between Hwy I-10 and the Salton Sea. Comment
  RSA703815  Senecio mohavensis LeRoy Gross 2005-3-3 1592 Riverside Palen Mountains, south side. Near end of old prospect road. Near 33.71244N, 115.11171W. to 33.72053N, 115.11051W 207 Comment
  UCR217798  Senecio mohavensis Jim Andre, T. La Doux 2010-2-28 12555 Riverside Lower Colorado River Valley, along Hwy 95 c. 25 miles north of Blythe, on east side of Big Maria Mountains, under radio tower 83 Comment
  UCR42398  Senecio mohavensis J. M. Stewart 1986-1-26 86- 6 Riverside Sonoran (Colorado) Desert, NE side of Mecca Hills 305 Comment
  UCD108466  Senegalia greggii Robert Tofsrud 1950-4-1 s.n. Riverside Highway 95, 15 miles north of Blythe. Comment
  RSA796750  Senna armata Jim Andre 2012-4-11 20839 Riverside Orocopia Mountains: north end of range, along dirt road 2.8 mi due south of I-10 at Box Canyon Rd/Cottonwood Rd Exit. 624 Comment
  SBBG87835  Senna covesii A. C. Sanders, B. Pitzer, D. Charlton 1986-3-3 6073 Riverside Corn Spring, wash below the spring and wash and rocky slopes to the S; Chuckawalla Mtns 487 Comment
  UC1765226  Senna obtusifolia Les Ede 1989-8-19 Riverside S of Blythe in the Palo Verde Valley, ca. 1 mi N of the Imperial County line. Comment
  SBBG124871  Sequoia sempervirens S. C. White, J. M. Wood 2009-5-22 12922 Riverside Halfway Spring, accessed via Old Control Rd 1159 Comment
  UCR59700  Sesbania herbacea George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, Colorado River Valley; hayfield on W side of state Hwy 78, 0.7 mi north of Palo Verde 71 Comment
  SEINET10753960  Setaria geniculata Unknown 1987-5-10 Bogen 1 Riverside Along Van Buren Blvd. between bridge over Santa Ana River and sewer plant; disturbed area by roadside. Roadfill at edge of riparian. Comment
  UCR176676  Setaria parviflora G. S. Nuessly 1980-10-14 s.n. Riverside Riverside: U.C. Riverside campus, above Picnic Hill 351 Comment
  RSA0002001  Sibaropsis hammittii Steve Boyd, Timothy S. Ross 1992-3-31 6771 Riverside Santa Ana Mountains, clay soil areas on Elsinore Peak. 1011 Comment
  SD137715  Sidalcea malviflora subsp. malviflora Darin L. Banks, Steve Boyd 1995-5-9 405 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, north face of Agua Tibia Mountains,west of the Dripping Springs Alcove Area. 737 Comment
  JOTR32955  Silene antirrhina La Doux, Tasha, Alice Miller and Victoria Sork 2009-5-3 2705 Riverside Joshua Tree National Park. Little San Bernardino Mountains, east of Willow Hole in Wonderland of Rocks Comment
  OBI5736  Silene antirrhina Charlotte M. Wilder 2004-4-27 s.n. Riverside Wilder's canon, Jurupa Hills Comment
  CAS-BOT-BC384577  Silene coniflora A. C. Sanders; Steven R. Hill 2001-5-4 24130 Riverside Santa Ana Mtns. region: W of Temecula, Santa Rosa Plateau area, top of escarpment on Rancho California Rd. at Avenida del Oro (to Sandia Crk. Dr.), E side of Rancho C. Rd. 488 Comment
  UCR58856  Silene laciniata subsp. major Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3624 Riverside Butterfield Valley, Vail Lake area, just south of junction of Hwy 79 and road to the marina 460 Comment
  RSA65025  Silene multinervia F. W. Peirson 1925-5-20 6013 Riverside Burned area in chaparral, 1 mile northwest of Dripping Spring, W. Riverside Co. 457 Comment
  CAS-BOT-BC389581  Silene parishii Carl B. Wolf 1932-8-5 3981 Riverside San Jacinto Mts. Summit of San Jacinto Peak 3293 Comment
  UC1361893  Silene parishii Reid Moran 1968-8-3 15369 Riverside n slope 1 mi w of summit Santa Rosa Mountain; w of summit Santa Rosa Mountain 2150 Comment
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Jan 2 2010
  UCR158049  Silene verecunda subsp. platyota Y. Katzenstein 1993-5-22 42 Riverside San Jacinto Mtns., James San Jacinto Mtns Reserve; along side drainage to the Hall Canyon creek, about 2mi from Lake Fulmor 1677 Comment
  RSA0124814  Simmondsia chinensis Duncan S. Bell, LeRoy Gross 2016-3-9 8851 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; central section of range, approximately 1.75 air miles north of Gucci Spring. 551 Comment
  SEINET10389797  Simmondsia chinensis A. C. Sanders, Jim Malusa 2015-3-9 41360 Riverside Chocolate Mountains, along Gasline Road at major wash crossing 1.9 mi. south of Bradshaw Trail, US Navy Chocolate Mountains Aerial Gunnery Range 686 Comment
  UCR96125  Simmondsia chinensis B. G. Pitzer 1996-11-11 2929 Riverside Sonoran (Colorado) Desert, Orocopia Mts: Salt Creek Wash, at intersection w/ SR211, 4 rd. mi. south of Bob's Cabin 274 Comment
  POM244246  Sinapis alba C. B. Wolf 1936-4-21 7769 Riverside 4 mi. W. of Riverside and south of Jurupa Rd. 305 Comment
  RSA249446  Sisymbrium altissimum John F. Emmel 1973-5-13 453 Riverside Firebreak between Dry Creek and Chalk Hill, S of Idyllwild. 1402 Comment
  JOTR35072  Sisymbrium irio La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3524 Riverside Joshua Tree National Park. Southern end of Coxcomb Mountains with exposed metasedimentary rocky slopes; above narrow side canyon Comment
  SBBG34724  Sisymbrium irio T. L. Secrest 1950-3-13 Riverside near Indio Comment
  UCR138918  Sisymbrium irio Julie A. Greene 1993-3-13 1066 Riverside San Jacinto River Valley, San Jacinto Wildlife Area. On the berm north of the western ponds 441 Comment