Search Results — 2000 specimen records retrieved (1895 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/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD229022  Abies concolor Dick Schwenkmeyer 2012-8-7 787 Riverside Santa Rosa Mountain Cabin, 10 miles southeast of the intersection of Highway 74 and Santa Rosa Mountain road. 2305 Comment
  UCSB12  Abies concolor Bobkowski, Jr., Vincent 1960-5-14 Riverside At Black Mountain Camp, San Bernardino National Forest Comment
  RSA340185  Abronia villosa Robert F. Thorne, W. A. Tilforth 1980-5-28 54181 Riverside San Bernardino Mountains: Whitewater ridge above old bridge. Comment
  RSA698219  Abronia villosa J. R. Bruff s.n. Riverside Whitewater. Comment
  POM727  Abronia villosa var. aurita P. A. Munz 1918-4-27 2131 Riverside Temescal Canyon. Comment
  RSA461181  Abronia villosa var. aurita N. C. Cooper 1949-6-29 4293 Riverside East side of San Jacinto Mountains. 1524 Comment
  RSA461192  Abronia villosa var. aurita Ora M. Clark 1929-2-22 1576 Riverside E. of Whitewater Comment
  CLARK-A1045-206  Acamptopappus sphaerocephalus George K. Helmkamp 1979-4-29 Riverside Windy Point Whitewater 7.5'Q Comment
  SEINET1956968 Image available Acamptopappus sphaerocephalus L. R. Abrams 1941-4-23 13923 Riverside Whitewater Water wash, Palm Springs railroad station. Comment
  POM13607  Acamptopappus sphaerocephalus var. sphaerocephalus E. C. Jaeger 1921-4-1 1138 Riverside Mission Creek Wash Comment
  RSA416242  Achillea millefolium E. A. McGregor 1964-9-15 s.n. Riverside Idyllwild, San Jacinto Mountains. Comment
  JOTR00963  Achnatherum hymenoides Cole, James E. 1941-1 982 Riverside Joshua Tree National Park. PINE CITY ROAD Comment
  POM162738  Achnatherum parishii subsp. parishii Ralph Hoffmann 1929-9-6 15 Riverside Granite ridges, San Jacinto Mountains. 2439 Comment
  RSA126801  Achnatherum speciosum H. S. Yates 1937-3-24 6463 Riverside Near Head of Deep Canyon. 914 Comment
  CAS-BOT-BC384722  Achyronychia cooperi S. B. Parish 1896-4-1 4139 Riverside Palm Springs, Colorado Desert Comment
  UCD84935  Achyronychia cooperi Chuck Hughes 2010-3-23 207 Riverside About 11.5 miles south of Highway 62, next to railroad tracks. 254 Comment
  CAS-BOT-BC213416  Acmispon argophyllus var. argophyllus Lester Rowntree 1937-11-1 s.n. Riverside Nigger Grade [Nate Harrison Grade], W. side of Palomar Mt. Comment
  SDSU4340  Acmispon glaber S. J. Barnhart 1966-4-24 660424 -1 Riverside South-West facing slope of small hil 0.1 miles east of McAllister St. along the Metropolitan Water Co. utility road (dirt), which is 1.5 miles south-east of the intersection of McAllister St. and Victoria avenue. 457 Comment
  SBBG3417  Acmispon grandiflorus var. grandiflorus H. and M. Dearing 1940-6-9 4363 Riverside Palms to Pines Hwy Comment
  SD137780  Acmispon micranthus Darin L. Banks, Steve Boyd 1995-4-5 136 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, north slope of Agua Tibia Mountain east of the Dripping Springs Alcove along the Dripping Springs Trail, open hillside 609 Comment
  SD248413  Acmispon strigosus A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41422 Riverside San Gorgonio Pass: San Gorgonio River wash, ca. 3.7 miles east of Cabazon, ca. 1.25 mile NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms. 427 Comment
  UCR244909  Acmispon strigosus Jim Andre 2012-3-19 21378 Riverside Sonoran (Colorado) Desert, Palen Mountains, along Palen Pass Rd at Palen Pass 383 Comment
  SDSU13528  Acourtia microcephala W. Miller, C. Mosse 1972-7-12 Riverside Comment
  CHSC110029  Adenophyllum porophylloides Steve Boyd; Tammy Morgan, Aydee Virgen, Sarah DeGroot, 2004-5-14 11212 Riverside Colardo Desert; Chocolate-Chuckwalla Mountains region: Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  JEPS44821 Image available Adenostoma sparsifolium W. L. Jepson 1903-8-6 2284 Riverside San Jacinto Mt., Chalk Hill 1371 Comment
  RSA711115  Adenostoma sparsifolium M. Wall, Del Wiens, Clyde Calvin 2005-12-4 409 Riverside At highway maintenance dirt road jct. along Highway 243, ca. 2.5 miles N. of Mountain Center. 1524 Comment
  SBBG53855  Adenostoma sparsifolium K. R. Montgomery 1969-11-6 69 -20 Riverside Wilson Valley Rd, 18 mi S of Hemet 1097 Comment
  UCR196977  Adenostoma sparsifolium Mark A. Elvin 2004-10-12 3812 Riverside San Jacinto Mountains, south of Idyllwild, north of Mountain Center along Hwy 243 1524 Comment
  UCR208108  Adiantum capillus-veneris N. C. Cooper 1944-4-8 1090 Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Andreas Canyon 457 Comment
  RSA523501  Adiantum jordanii Steve Boyd, Timothy S. Ross, L. Arnseth 1990-3-30 3961 Riverside Vail Lake Area, westerly drainage cyn at N base of 'Big' Oak Mtn. 640 Comment
  UCR94066  Agave deserti subsp. deserti Scott D. White, D. Haselfeld 1996-7-2 4253 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
  CAS-BOT-BC46157  Agoseris heterophylla Marcus E. Jones 1882-5-3 3222 Riverside Pasadena Comment
  UC832673  Agoseris heterophylla var. heterophylla P. A. Munz and I. M. Johnston 1922-5-20 5479 Riverside Kenworthy; San Jacinto Mts. 1417 Comment
Read comments
Mar 25 2011
  RSA0050598  Agrostis A. C. Sanders, Mitch Provance 2008-7-11 35808 Riverside Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station, In moist soil along dried stream crossing on Coldwater Trail, at 42.709 N, 42.404 W. 1450 Comment
  SBBG59468  Agrostis exarata R. Hoffmann 1929-9-7 Riverside Strawberry Valley 1645 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
  RSA754128  Agrostis idahoensis W. Schlegel, Andrew Troutte 2008-8-8 4 Riverside Idyllwild: Dry creek bed. Comment
  CLARK-A1528-38  Agrostis semiverticillata C. M. Flanagan 1973-5-31 OO 618 Riverside Morongo Indian Reservation 1158 Comment
  POM98787  Aliciella latifolia P. A. Munz 1926-1-31 9967 Riverside Dos Palmas Spring Comment
  HSC25444  Allenrolfea occidentalis R. W. Spjut 1972-1-6 2101 Riverside Colorado Desert, common at the NE shore of the Salton Sea. -61 Comment
  POM13892  Allionia incarnata P. A. Munz, D. D. Keck 1922-4-9 4828 Riverside South base of Eagle Mountains 3 miles NE of the 'Hayfields' 213 Comment
  UCR100871  Allionia incarnata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2703 Riverside Sonoran (Colorado) Desert, Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 Comment
  UCR264239  Allionia incarnata A. C. Sanders, Jim Malusa 2015-9-10 41846 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
  UCR74356  Allionia incarnata Theo Glenn 1991-5-2 91- 33 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  SBBG34201  Allium burlewii T. L. Secrest 1951-5-20 Riverside Pine Cove 1905 Comment
  CSUSB417  Allium fimbriatum Joe Barrington 1968-5-11 680511 3 Riverside 1/4 mile off Highway 74, across from Alpine Village (town) 1280 Comment
  SEINET182580  Allium fimbriatum I. W. Clokey, CB Clokey; B. Templeton 1930-4-15 4621 Riverside Gavilan Peak 600 Comment
Read comments
Mar 2 2014
  SEINET10532711  Allium fimbriatum Cooper 1944-5-20 Cooper 1237 Riverside Pinyon flats, palms to pines hwy. San jacinto mountains. Under shrubs. Flowers Reddish purple. Stems short 1219 Comment
  IRVC12871  Allium haematochiton C. A. Taylor 1966-3-25 66 40 Riverside 1 mi. N of Elsinore City on Hwy 74. Comment
  RSA100190  Allium haematochiton I. T. Weeks 1955-5-4 s.n. Riverside 1/2 mile east of Gorgeous George s turkey ranch, northwest of Beaumont. Comment
Read comments
Jun 15 2011
  RSA0006686  Allium munzii Steve Boyd 1986-4-20 1725 Riverside Gavilan Plateau, Gavilan Hills: clay soil on hillside south of Harford Springs County Park. 616 Comment
  SEINET2444454  Allophyllum glutinosum Leigh A. Johnson 1997-4-25 97 -054 Riverside San Bernardino Natl. Forest, Cahuilla Mtn. Along road to Cahuilla Mtn. trail. 1300 Comment
  CHSC271  Almutaster pauciflorus E. Thomas 1940-7-18 Riverside Palm Canyon. 243 Comment
  UCR251961  Alnus rhombifolia Max Brodie 2014-4-6 03 Riverside San Bernardini Mtns./Sonoran (Colorado) Desert, Whitewater Canyon off Whitewater Canyon Rd., along Whitewater River near town of Bonnie Bell, c. 2 miles north of Hwy I-10 488 Comment
  UCR166723  Amaranthus albus Scott D. White, Jennifer H. Jones 2005-4-12 10863 Riverside Coachella Valley, Indio area, vacant land NE of the I-10 Freeway interchange at Jefferson 18 Comment
  RSA0112041  Amaranthus blitoides A. C. Sanders, Jose Aguiar 2012-12-19 40532 Riverside Sonoran (Colorado) Desert: Coachella Valley, NE of Mecca above intersection of Ave. 62 and Johnson St. near Coachella Canal. -8 Comment
  UCR58450  Amaranthus powellii George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns., Edge of Lake Hemet 1400 Comment
  RSA451025  Amaranthus retroflexus Stephen M. Beckstrom-Sternberg 1985-9-10 1015 Riverside U.C.R. garden plots. Comment
  RSA711758  Amaranthus retroflexus B. L. Phillips 1994-9-12 s.n. Riverside A weed on the UCR campus at the community vegetable gardens at the NE corner of the intersection of Canyon Crest Dr. and M.L. King Blvd. (=Pennsylvania Avenue). Comment
  UCR220309  Ambrosia acanthicarpa Bill Wagner 2005-10-7 s.n. Riverside Peninsular Range; Gavilan Hills Region, Cajalco Flood Control Basin site (proposed, since constructed), at NE corner of El Sobrante Rd. and Cajalco Rd. 447 Comment
  JEPS40973  Ambrosia dumosa W. L. Jepson 1928-4-25 12588 Riverside The driest and most arid hills Cottonwood Spring; Colorado Desert, Joshua Tree National Monument, Eagle Mounta 731 Comment
  RSA416964  Ambrosia dumosa Anstruther Davidson s.n. Riverside Colorado Desert. Comment
  RSA603806  Ambrosia dumosa L. C. Wheeler 1931-11-26 383 Riverside 2 mi. SE Salton Bench Mark, Colorado Desert. -61 Comment
  RSA775936  Ambrosia dumosa Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-31 946 Riverside Wash crossing Midland Rice Road, near saddle between Little Maria Mountains and Big Maria Mountains 320 Comment
  RSA796102  Ambrosia dumosa Duncan S. Bell 2009-4-20 318 Riverside Arica Mountains: southeast of range, approximately 7.5 air miles south of Rice. 244 Comment
  RSA796457  Ambrosia dumosa Duncan S. Bell 2009-4-18 219 Riverside Arica Mountains: northwest of range, approximately 1.6 air miles south of Highway 62, and approximately 0.4 air mile north of California aqueduct. 389 Comment
  UC406767  Ambrosia dumosa Marcus E. Jones, A. M. 1929-9-16 25074 Riverside e of Desert Center Comment
  UCR41219  Ambrosia dumosa N. M. Fellows 1985-3-3 76 Riverside San Jacinto Mtns, Oasis de los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the north foot of San Jacinto Mountain, l mile west of Snow Creek Village 489 Comment
  UCR41461  Ambrosia ilicifolia A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6131 Riverside Sonoran (Colorado) Desert, N foot of the Chuckwalla Mountains, 2.75 mi (airline) SE of Desert Center 367 Comment
  UCR171902  Ambrosia pumila John F. Green 2006-4-27 s.n. Riverside Peninsular Ranges, Temecula, plot centered on San Diego Aqueduct corridor between Nicolas Road and Via Norte 381 Comment
  UCR280928  Ambrosia pumila Mitch Provance 2017-5-26 517- 61 Riverside Elsinore Trough, Lake Elsinore, 0.2 mile north of Pinnell Rd. 393 Comment
  CAS-BOT-BC273005  Ambrosia salsola J. M. No date on label 0018 Riverside HTGR Site, Vidal Junction Comment
  UC1069630  Ambrosia salsola R. St. John 1929-3-25 15 Riverside Foot of Cabezon Mt San Jacinto Quad., Foot of Cabezon Mt. 609 Comment
  JEPS23574  Ambrosia salsola var. salsola Peter H. Raven 1958-2-15 11577 Riverside Corn Springs Chuckwalla Mountains, Corn Springs Comment
  JEPS39429  Ambrosia salsola var. salsola W. L. Jepson 1914-5-18 6032 Riverside from Pinyon Well to Indio (county well rd, n borders Colorado Desert); Colorado Desert Comment
  SBBG25159  Ambrosia salsola var. salsola Leota Davidson 1965-5-14 113 Riverside Pinto Wash, Joshua Tree Nat Monument Comment
  UCR23953  Amorpha californica John C. Roos 1952-6-13 5767 Riverside Pass between Reche Canyon and the north base of Pigeon Pass. 488 Comment
  POM48531  Amsinckia intermedia F. M. Reed 1925-3-15 4934 Riverside Chicago Ave, Riverside 274 Comment
  SD133163  Amsinckia intermedia Scott White 1991-3-22 Riverside Los Alamos Road, ca. 2 miles west of I-215 exit, by road; just east of the city of Murrieta 365 Comment
  UCR20733  Amsinckia intermedia A. C. Sanders, Steve Boyd 1980-5-2 1398 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  UCR214116  Amsinckia intermedia A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37720 Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 518 Comment
  SEINET3083516 Image available Amsinckia menziesii J. Hirshberg 1989-5-20 Riverside Santa Rosa Plateau, S of town of Murrieta; SW of Mesa de Burro. Comment
  RSA0089961  Amsinckia retrorsa A. C. Sanders 2005-5-4 29846 Riverside Gavilan Hills near Riverside: ca. 1 km east and southeast of Gavilan Peak 625 Comment
  UC1084627  Amsinckia tessellata var. tessellata Francia Chisaki, Peter M. Ray 1952-4-6 2197 Riverside about 1/4 mi w of Cottonwood Springs; Joshua Tree National Monument Comment
  JOTR32441  Amsonia tomentosa La Doux, Tasha, T. Herskovits, B. Truesdell, M. Wheeler 2010-5-6 2345 Riverside Joshua Tree National Park. Little San Bernardino Mountains, west of Ryan Mountain; Monzo-granitic boulder outcrop south of Ryan Mountain campground (Stop 2) Comment
  UCR174344  Anagallis arvensis A. C. Sanders 2006-5-19 32399 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 518 Comment
  UCR49269  Anagallis arvensis Steve Boyd 1986-5-1 1804 Riverside Perris-Aguanga Basin region, southwestern Perris Basin, hill west of Skunk Hollow, Skunk Hollow vernal pool 488 Comment
  RSA465157  Anagallis arvensis E. Crow 1929-3-17 200 Riverside Glen Ivy Hot Springs, Santa Ana Mts. Comment
  RSA524422  Ancistrocarphus filagineus Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-3 4117 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
  RSA524599  Ancistrocarphus filagineus Steve Boyd, Timothy S. Ross, L. Arnseth 1990-3-29 3914 Riverside Vail Lake area, summit of Big Oak Mtn, N. of lake. 793 Comment
  UCR100026  Ancistrocarphus filagineus A. C. Sanders, G. Helmkamp 1997-3-15 19999 Riverside Peninsular Range, Lake Skinner, SE foot of Bachelor Mtn., just north of the lake 600 Comment
  RSA296116  Andropogon glomeratus B. A. Prigge 1980-8-11 3887 Riverside San Bernardino Mountains, Whitewater Canyon: 1.1 miles N of Interstate 10. 473 Comment
Read comments
Jan 14 2010
  UC891795  Antennaria rosea P. A. Munz 1922-7-6 5977 Riverside Tahquitz Valley San Jacinto Mts., Tahquitz Valley 2225 Comment
  CDA20168  Antirrhinum coulterianum J. Chandler 2003-6-16 PDR 1261500 Riverside Southern California; on Wildwood Ln in Aguanga. 0 Comment
  POM19565  Antirrhinum coulterianum Mary F. Spencer 1923-9-8 2185 Riverside Idyllwild 2134 Comment
  UC444962  Antirrhinum coulterianum Katharine Brandegee 1896-4-10 Riverside Agua Caliente Comment
  UCR137357  Antirrhinum coulterianum John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  UCR117073  Antirrhinum kelloggii A. C. Sanders, Steven R. Hill 2001-5-4 24131 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 Creek. Dr.), E side of Rancho Calif. Rd. 488 Comment
  UC64224  Antirrhinum nuttallianum subsp. nuttallianum H. M. Hall 1897-6-1 Riverside Riverside foothills Riverside Comment
  RSA561805  Apiastrum angustifolium Steve Boyd 1992-4-14 6839 Riverside San Mateo Canyon Wilderness Area; Western flank of Bluewater Canyon along Bluewater Trail 341 Comment
  UCR172225  Apiastrum angustifolium John F. Green 2006-5-2 s.n. Riverside Peninsular Ranges, unincorporated area along San Diego Aqueduct Corridor, 1 km due west of Skunk Hollow, between Nicholas Rd. and Borel Rd., east of Murrieta Hot Springs 421 Comment
  UCR87938  Araujia sericifera A. C. Sanders 1994-1-30 14221 Riverside Corona, Orange Heights section. D.R. Horton Custom Homes tentative tract, north side of Chase Drive between Rimpau (Lester) Avenue and California (Compton) Avenue 300 Comment
  RSA0128447  Arceuthobium cyanocarpum R. L. Mathiasen, C. M. Daugherty 2009-8-5 0928 Riverside North slope of Tahquitz Peak. 0.4 km west of the jct. of the Tahquitz Peak Trail and the Tahquitz Valley Trail above the trail to Tahquitz Peak. 2640 Comment
  RSA629128  Arctostaphylos Jon E. Keeley 1992-7-17 16783 Riverside Rd. to Thomas Mtn. (5S15), 4.3 km north of Toolbox Spring. San Jacinto Mtns. 1920 Comment
  RSA629349  Arctostaphylos glandulosa Jon E. Keeley 1976-9-7 6026 Riverside About 8 km west of Lake Elsinore. 660 Comment
  RSA629419  Arctostaphylos glandulosa Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19509 Riverside Southwest of Wildomar, off Hacienda Rd., north of Avenida La Cresta, west of Clinton-Keith Rd., southern Santa Ana Mtns. 820 Comment
  RSA629435  Arctostaphylos glandulosa Jon E. Keeley 1992-7-17 16849 Riverside Hwy 243, 39-40 km north of Idyllwild. 1375 Comment
  UCR4057  Arctostaphylos glandulosa Carole Sims 1965-4-28 s.n. Riverside San Jacinto Mtns, 10 mi from Banning toward Idyllwild 1067 Comment
  SD136856  Arctostaphylos glandulosa subsp. glandulosa Steve Boyd, Tim Ross 1992-5-4 7208 Riverside Southern Santa Aana Mountains, San Mateo Canyon Wilderness Area. Oak Flats area east of Verdugo Potrero. 730 Comment
  RSA629443  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-7-17 16757 Riverside Road to Thomas Mtn. (5S15), 1.8 km south of Toolbox Spring, west of Garner Valley, San Jacinto Mountains. 1785 Comment
  RSA263747  Arctostaphylos glandulosa subsp. zacaensis E. W. Lathrop 1968-5-22 6908 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  HSC101773  Arctostaphylos glauca J. P. Smith, J. O. Sawyer, R. J. Cole 2011-6-9 13186 Riverside Along State Route 74 1227 Comment
  LA34912  Arctostaphylos glauca Mary V. Hood; 1945-3-25 45- 3 k* Riverside Iron Spring, Aguanga 609 Comment
  POM367316  Arctostaphylos glauca Kenneth R. Montgomery 1969-9-7 69 -24 Riverside Wilson Valley Road, 18 miles south of Hemet 1220 Comment
  RSA631806  Arctostaphylos glauca Jon E. Keeley 1992-9-27 21811 Riverside Highway 74 at Pinyon Flats, southwest of Palm Desert. 1290 Comment
  RSA78198  Arctostaphylos glauca var. eremicola P. A. Munz 1953-5-31 18516 Riverside ridge between Juniper Flats and Stubby Springs, Joshua Tree Nat'l Mon. Comment
  RSA633555  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-9-27 21793 Riverside Dirt road to Santa Rosa Mountain, 12.3 km southeast of Highway 74, northwest side of Santa Rosa Mountains. 2190 Comment
  RSA633595  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-17 16702 Riverside Road to Santa Rosa Mountain (7S02), 12.3 km south of Highway 74. 2190 Comment
  RSA633754  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16678 Riverside Road to Santa Rosa Mountain (7S02), 9.3 km south of Highway 74. 1990 Comment
  UCR172753  Arctostaphylos pringlei Abby Sirulnik 2000-5-7 35 Riverside Peninsular Ranges; San Jacinto Mtns., Calif. Hwy 243, c. 6 mi. south of Poppet Flat Road 1646 Comment
  CAS-BOT-BC44333  Arctostaphylos pringlei subsp. drupacea H. M. Hall 1901-6-1 2092 Riverside San Jacinto Mts. 1524 Comment
  LA42425  Arctostaphylos pringlei subsp. drupacea Carl B. Wolf; 1932-8-4 3922 Riverside San Jacinto Mountains, Strawberry Valley, 1.5 mi. from Idyllwild on road to Banning 1706 Comment
  LA42429  Arctostaphylos pringlei subsp. drupacea Elizabeth McClintock; 1938-5-15 sn Riverside San Jacinto Mountains, Idyllwild Grade Comment
  RSA635642  Arctostaphylos pringlei subsp. drupacea Jon E. Keeley 1992-7-17 16725 Riverside Hwy 74, 4.3 km west of road (7S02) to Santa Rosa Mtn. 1470 Comment
  RSA635686  Arctostaphylos pringlei subsp. drupacea Jon E. Keeley 1992-7-16 16828 Riverside Idyllwild, saunders Mdw. Rd., E of Hwy 243, San Jacinto Mtns. 1610 Comment
  RSA253146  Arctostaphylos pungens Gary D. Wallace 1975-2-22 1397 Riverside San Jacinto Mtns., alaong hwy, 243, 3-5 mi. N of Poppet Flat Road turn off. Comment
  RSA635783  Arctostaphylos pungens Jon E. Keeley 1992-7-16 16532 Riverside Red Mountain Road, 5 km east of R3. 1000 Comment
  RSA751283  Arctostaphylos pungens A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-25 35612 Riverside May Valley c. 1.0 mi SW of Fleming Ranch, along dirt track 1555 Comment
  UCR106339  Arctostaphylos pungens John Wear, N. Moorhatch 1996-9-19 s.n. Riverside Peninsular Range; San Jacinto Mtns., upper end of Garner Valley 1433 Comment
  RSA636183  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19537 Riverside West of Temecula, north-facing slopes off Carancho Rd., 2.8 km west of Via Volcano, eastern Santa Margarita Mtns. 320 Comment
  SD180720  Arctostaphylos rainbowensis C. Matt Guilliams 2007-8-2 402 Riverside Santa Margarita Ecological Reserve, along A!Highlands TrailA(r) at northern rim of mesa-top. 654 Comment
  UCR61702  Arctostaphylos rainbowensis S. J. Myers 1990-3-21 s.n. Riverside Santa Rosa Plateau area: along Los Gatos Road, 1/2 mi south of Buena Vista Road (2 mi west of Sandia Canyon and 0.1 mi north of San Diego County line) 366 Comment
  RSA434321  Argemone munita subsp. argentea H. de Forest 1924-4-18 s.n. Riverside Palm Springs. Comment
Read comments
Aug 27 2011
  RSA0040073  Argythamnia neomexicana Jim Andre 2014-1-27 26660 Riverside At mine site (and borrow pit), in canyon 1.3 mi. west of Hwy 95 (at Wilson Rd), 12.2 mi. south of Vidal Jct (at Hwy 62). 224 Comment
  RSA342535  Argythamnia serrata R. F. Thorne, Dick Tilforth 1980-4-16 54018 Riverside San Bernardino Mountains: At mouth of Whitewater Canyon, ca. 1/4 mi. W of Whitewater P.O. and 1/2 mi. W of Whitewater River. 415 Comment
  JOTR31934  Aristida adscensionis La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2172 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky wash draining into west Pinkham Wash Comment
  UCR19684  Aristida adscensionis John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, 20 mi west of Blythe Comment
  UC1922811  Aristida adscensionis Michael Honer with L. Hulse 2005-3-8 2043 Riverside Colorado Desert; Little San Bernardino Mountains region: Fargo Canyon; first main N-trending fork after entering canyon from bajada. Site of large long MWD aqueduct tunnel tailings pile. Comment
  CLARK-A1528-4477  Aristida parishii John C. Roos 1952-4-16 5551 Riverside Reche Canyon 457 Comment
  UCD56515  Aristida purpurea P. B. Kennedy 1921-10-28 s.n. Riverside Mt. Rubidoux. Comment
  JOTR34101  Aristida purpurea var. nealleyi La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2750 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Granitic bedrock slopes and outcrops (Stop 4) Comment
  UCR92678  Aristida purpurea var. nealleyi Scott D. White, M. A. Patten 1995-8-16 3545 Riverside San Jacinto Valley, Just west of Hemet, valley floor and foothills at SE margain of Lakeview Mts. north of Florida Ave. (SR 74) and west of California Avenue 500 Comment
  RSA575883  Aristida purpurea var. parishii Steve Boyd 1981-3-13 s.n. Riverside Gavilan Hills regiion, upper western flank of Estelle Mountain. 671 Comment
  RSA778133  Artemisia californica Thomas Stoughton, E. Gardner, Duncan S. Bell 2010-11-12 718 Riverside PCT Trail. W of White Water Canyon. N of jct of I-10 and Rte 111. 732 Comment
  SFV3693  Artemisia californica M. L. Vincent, R. H. Swade 1963-10-19 458 Riverside Snow Creek Road, 2 miles from its intersection with California State Highway 111. This intersection is about 0.5 miles southeast of the intersection between Highway 111 and Interstate Highway 10. 366 Comment
  UCR106922  Artemisia californica D. L. Banks, L. Raz 1996-11-5 1146 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
  JEPS26594  Artemisia dracunculus Peter Kamb 1948-10-31 1285 a Riverside Hall Canyon San Jacinto Mts., Hall Canyon 1645 Comment
  UCR111590  Artemisia dracunculus Mitch Provance 1999-1-5 1740 Riverside Mira Loma, Delhi sand dune remnant on SE corner of Milliken Ave. and Patton Rd. 256 Comment
  RSA716111  Artemisia tridentata subsp. tridentata Michael Wall 2006-11-18 425 Riverside San Jacinto River channel at Bautista Creek confluence, east Hemet near Mountain Ave. and Cedar Ave. 504 Comment
  SEINET10513658  Arundo donax David B. Dunn 1947-2-9 Dunn 2851 Riverside Pushawall canyon. Indio hills. By lower part of stream. Comment
  CAS-BOT-BC222820  Asclepias albicans H. M. Hall 1905-5-1 6025 Riverside Colorado Desert. Pinto Mts. Comment
  UCR163056  Asclepias erosa B. G. Pitzer, G. R. Ballmer 2000-10-14 4234 Riverside Sonoran (Colorado) Desert, large wash c. 5.3 miles east of Ford Lake Rd. and 1 mile west of Wiley's Well Rd., off gasline road c. 200 yards south of Hwy I-10 115 Comment
  RSA192217  Asclepias fascicularis E. W. Lathrop 1966-6-13 6421 Riverside 5 mi. N W of Murrieta. Stream bank woods of southern oak woodland. Comment
  RSA717647  Asclepias subulata Scott D. White, Pam De Vries 2006-3-14 11245 Riverside North of the I-10 Freeway a few mi east of Indio, at proposed I-10 / McNaughton Parkway interchange. 91 Comment
  UCD121362  Asclepias subulata Geoffrey Levin 1975-12-7 659 Riverside Painted Canyon, about 9 mi. east of Mecca. Mecca Hills Mt. Range. Salton Sink drainage area. 76 Comment
  UCR244921  Asclepias subulata Jim Andre 2012-3-19 21368 Riverside Sonoran (Colorado) Desert, Palen Valley along Palen Pass Rd [Coxcomb Monument Rd.] (dirt), 7.1 mi. east of Hwy 177 321 Comment
  CLARK-A1528-450  Astragalus aridus Charlotte Stocks 1963-5-19 Riverside Coachella Valley Comment
  UC218095  Astragalus aridus P. A. Munz, D. Keck 1922-4-8 4739 Riverside Mecca , Mecca (Colorado Desert) -30 Comment
  RSA415430  Astragalus coccineus Martha Hilend 1928-1-31 s.n Riverside N.W. of Pinto Basin, Colorado desert. Above new El Dorado mine. Comment
  JOTR01057  Astragalus coccineus Cole, James E. 1941-4-15 601 Riverside Joshua Tree National Park. .05 MILES ABOVE PINON WELL Comment
  CAS-BOT-BC177731  Astragalus crotalariae Marcus E. Jones 1906-4-20 s.n. Riverside Borrego Spring 1066 Comment
  UCD84939  Astragalus didymocarpus var. dispermus Chuck Hughes 2010-3-23 211 Riverside About 11.5 miles south of Highway 62, next to railroad tracks. 254 Comment
  RSA0006768  Astragalus insularis var. harwoodii J. C. Roos, Lucille Roos 1949-4-11 4241 Riverside Corn Spring, Cuckawalla Mts. Comment
  SEINET898139  Astragalus lentiginosus H. M. Hall 1905-1 5757 Riverside Whitewater, on the Colorado Desert, Lower Sonoran Zone, 240 Comment
  LA204981  Astragalus lentiginosus var. coachellae Carl Epling; 1937-3-27 sn Riverside Thousand Palms Comment
  RSA298236  Astragalus lentiginosus var. coachellae T. W. Minthorn 1926-5-14 s.n. Riverside Between Banning and Palm Springs. Comment
  RSA498238  Astragalus lentiginosus var. coachellae T. W. Minthorn 1926-5-15 s.n. Riverside Near Indio. Comment
  UC517561  Astragalus lentiginosus var. coachellae John Thomas Howell 1928-3-11 3439 Riverside Garnet Station , Garnet Station (Coachella Valley) Comment
  UCR186855  Astragalus lentiginosus var. variabilis Naomi Fraga, Et al. 2005-3-30 1541 Riverside Sonoran (Colorado) Desert/Mojave Transition, dunes in the southern portion of the Pinto Basin. Joshua Tree National Park 549 Comment
  SD135217  Astragalus leucolobus Craig Reiser, Dylan Hannon 1993-5-30 Riverside N side of Santa Rosa Peak Comment
  RSA631065  Astragalus nuttallianus var. imperfectus L. C. Wheeler 1953-3-31 7039 Riverside Near Mountaineer Mine. Comment
  POM24215  Astragalus pachypus var. jaegeri S. B. Parish 1880-06 1134 Riverside 5 miles south of Temecula Comment
  SBBG35750  Astragalus palmeri D. Myrick 1966-4-3 1347 Riverside Hidden Valley; Joshua Tree Nat Monument Comment
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Dec 14 2016
  CAS-BOT-BC194135  Astragalus pomonensis Munz; Harwood 1920-2-28 3253 Riverside 3 miles west of Corona 304 Comment
  RSA492850  Astragalus pomonensis Bill Wagner 1988-3-9 s.n Riverside Grain field at Benton Rd. and San Diego aqueduct, 1/2 mile E of Winchester Rd., NE of Murrieta. 412 Comment
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Mar 20 2011
  SBBG68281  Astragalus pomonensis M. N. Ackley -Mar-1922 564 Riverside Murrieta Hot Springs 398 Comment
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Oct 21 2008
  UC1537099  Astragalus pomonensis Gordon H. True Jr. 1935-3-11 94 Riverside Mockingbird Canyon 457 Comment
  UCR130221  Astragalus purshii George K. Helmkamp, E. A. Helmkamp 1998-6-27 4120 A Riverside Santa Rosa Mountains., Santa Rosa Mountain Road, 5.8 miles southeast of Calif. Hwy 74 1799 Comment
  POM10277  Athysanus pusillus Charlotte M. Wilder 1904-4-10 s.n. Riverside Wilder s Canyon, Jurupa Hills, near Riverside. Comment
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Apr 2 2011
  UCR98063  Athysanus pusillus A. C. Sanders 1997-3-1 19732 Riverside Box Springs Mountains, Pigeon Pass, canyon below Regulus Road, 0.6 mi. west of Pigeon Pass Road., 0.4 mi. east of Bench Mark 'Table' (2559 ft). 610 Comment
  RSA0113041  Atrichoseris platyphylla R. F. Thorne 1963-3-29 32437 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 533 Comment
  RSA444558  Atrichoseris platyphylla Walter Wisura 1988-3-13 4203 Riverside Box Canyon Comment
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Nov 3 2011
  UC724310  Atrichoseris platyphylla Aven Nelson, Ruth A. Nelson 1939-3-29 3328 Riverside near Mecca; Hidden Springs Canyon Comment
  RSA0018888  Atriplex Duncan S. Bell, John Anderson, Kim Clark, Debbie George, Jim George, Ed Howland 2013-9-28 6024 Riverside Chuckwalla Valley; approximately 22.25 air miles west of Blythe, south side of Ford Dry Lake, about 0.5 air mile southeast of Hopkins Well. 107 Comment
  RSA737102  Atriplex argentea subsp. expansa Justin M. Wood 2008-10-29 205 Riverside Murrieta Creek- 2 miles SE of Murrieta, open field N of Winchester Rd and between the creek and Jefferson Ave. 314 Comment
  RSA617983A  Atriplex argentea var. mohavensis R. E. Riefner 1997-10-15 97 -348 Riverside Lake Elsinore area: Elsinore trough betwen Willard and Murrieta Creek Comment
  RSA33307  Atriplex canescens N. C. Cooper 1943-10-3 937 Riverside Cabazon, 549 Comment
  LA36248  Atriplex canescens var. laciniata Chas. Lowe Jr.; 1941-10-19 sn Riverside 3 mi. W of Ripley Comment
  SD60268  Atriplex canescens var. laciniata Carl B. Wolf 1932-10-13 4316 Riverside Caleb 4.5 miles southeast of Mecca. 60 Comment
  RSA0135545  Atriplex coronata var. notatior David E. Bramlet, Rick Riefner 2005-7-28 3906 Riverside Upper Salt Creek, 3.7 miles northwest of Hemet. 1,650 ft. north of Devonshire Ave. and 60ft west of Warren Road. 80 ft. east of the MWD canal. 458 Comment
  UCR14449  Atriplex coronata var. notatior O. F. Clarke, Jeanine Derby 1974-6-19 s.n. Riverside Perris-Aguanga Basin Region, [San Jacinto River] south of Ramona Expressway, 1/2 mile NW of Lakeview 432 Comment
  UCR252811  Atriplex coronata var. notatior Karyn L. Drennen 2014-5-13 028 Riverside Perris Aguanga Basin, Perris, east of Hwy 215, 0.7 km north of San Jacinto Ave., east of Dunlap Dr. 432 Comment
  UCR266252  Atriplex coronata var. notatior D. E. Bramlet 2006-5-5 3981 Riverside Perris-Aguanga Basin Region; San Jacinto Valley, west Hemet area, north of Stetson Ave. and east of the EMWD canal 456 Comment
  UCR75531  Atriplex coronata var. notatior A. C. Sanders 1993-5-12 14005 Riverside San Jacinto Valley, Hemet, SW corner of intersection of Florida Ave (Hwy 74) & Warren Rd., between new San Diego Aqueduct and Warren Road 460 Comment
  UCR77746  Atriplex coronata var. notatior Steve Boyd 1991-5-13 6238 Riverside Peninsular Range, Winchester Valley between Winchester and Hemet along upper Salt Creek drainage. Vernal pool association in pasture north of Santa Fe Railroad tracks, west of San Diego Aqueduct 457 Comment
  UCR121793  Atriplex davidsonii A. C. Sanders, Carolyn Washburn 2001-4-17 24039 Riverside San Jacinto Valley, west edge of Hemet, SW corner of Florida Ave. (Hwy 74) and Warren Rd. 457 Comment
  JEPS49002  Atriplex elegans var. fasciculata Marjorie D. Clary 1932-5-20 964 Riverside Coral Reef Ranch Comment
  SEINET4135102  Atriplex hymenelytra Faulkner 1978-3-21 335 Riverside 9 miles N of Blythe on Hwy. 95, dissected alluvial fan.; 0 152 Comment
  RSA24223  Atriplex linearis C. B. Wolf 1941-1-5 s.n. Riverside Colorado Desert, E side of Salton Sea. 1/2 way between Date Palm Beach and Salton Beach. -70 Comment
  HSC4352  Atriplex polycarpa L. S. Rose 1967-12-19 67177 Riverside La Quinta 15 Comment
  SBBG29999  Atriplex polycarpa F. W. Peirson 1917-4-1 1812 Riverside Palm Springs Comment
  CLARK-A1528-401  Atriplex semibaccata John C. Roos 1951-9-25 5278 Riverside Riverside 259 Comment
  HSC80295  Atriplex serenana Steve Boyd 1985-8-7 1115 Riverside Murrieta area, Clinton Kieth Rd., just E of the Bear Creek development golf course. Comment
  OBI37522  Atriplex serenana Steve Boyd 1985-8-7 1115 Riverside Murrieta area, Clinton Keith rd, just E of the Bear Creek development golf course. Comment
  UCR139983  Atriplex serenana var. serenana A. C. Sanders 2004-8-10 28772 Riverside Perris-Aguanga Region, 3 miles ENE of Perris, new nursery growing grounds west of Menifee Rd. (=Pozos Av.) & south of Nuevo Rd., between San Jacinto River and Nuevo 433 Comment
  RSA0038512  Atriplex suberecta R. E. Riefner Jr. 2012-3-31 12 -64 Riverside city of Hemet, north of Florida Avenue and south of West Devonshire Avenue and east of Meyers Street 462 Comment
  UCR232022  Atriplex suberecta John F. Green 2008-4-24 10- 01 Riverside Peninsular Range; SE Gavilan Hills, SW of Perris along Hwy 74, vicinity of Eugene St. 506 Comment
  UCR127539  Avena sativa A. C. Sanders, T. B. Salvato 2003-5-21 26807 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-BC213222  Ayenia compacta B. D. Stark 1933-5-13 4984 Riverside Andreas Canyon, about 50 feet above stream bed. 762 Comment
  CDA42499  Azolla filiculoides F. J. Willmarth Apr 1958 s.n. Riverside Reservoir, Hemet Valley. 0 Comment
  RSA40607  Baccharis brachyphylla J. C. Roos 1946-9-14 3008 Riverside Dry desert near Dos Palmos Spring, E of Asbestos Mountain. 1067 Comment
  UCR278378  Baccharis emoryi Mitch Provance 2012-9-5 912- 13 Riverside Beaumont Plateau, City of Beaumont, lower reaches of Potrero Creek, adjacent to Four Seasons Development, west side of Highland Springs Ave., 1.1 miles south of the I-10 freeway. 762 Comment
  SEINET10617173  Baccharis emoryi David B. Dunn 1946-2-22 Dunn 1945 a Riverside Collected on north side of Whitewater, in Colorado Desert. Comment
  UCR121891  Baccharis pilularis Ian G. Gillespie 2001-5-7 81 Riverside East side of Santa Ana Mountains, Temescal Valley Area, also known as Sycamore Canyon Area. North of Indian Truck Trail, in drainage off of De Palma Road. Heavy construction currently underway in adjacent areas 335 Comment
  UCR199915  Baccharis pilularis Scott D. White, Justin Wood 2007-10-3 11761 Riverside Southern Santa Ana Mountains, Site of proposed 'Liberty Quarry'. Mountains between Temecula Valley and Rainbow Valley just W of Interstate 15. N of the San Diego County Line 579 Comment
  POM318590  Baccharis salicifolia Patricia Wilder 1971-3-20 4881 Riverside Along Santa Ana River at end of Pedley Steet, Norco; south side of river 244 Comment
  RSA5523  Baccharis salicifolia C. B. Wolf 1932-10-11 4274 Riverside Morongo Wash, 3/10 mile below the San Bernardino County line. 671 Comment
  UCR97295  Baccharis salicifolia Scott D. White 1995-4-5 2730 Riverside Perris Valley, Lakeview Mountains: directly south of Rosary Ave. at ' T ' intersection with Central Ave., in town of Nuevo 488 Comment
  SEINET899320  Baccharis sarothroides C. B. Wolf 1931-1 1881 Riverside Colorado Desert, 2 mi. north of Blythe 152 Comment
  RSA5607  Baccharis sergiloides C. B. Wolf 1932-10-12 4298 Riverside Above Pinyon Well, Little San Bernardino Mts. 1220 Comment
  SD137907  Baccharis sergiloides Darin L. Banks, Steve Boyd 1995-10-17 804 Riverside Northwest Palomar Mountains; Agua Tibia Mountains; Cleveland National forest; along lower Arroyo Seco. 730 Comment
  SD229071  Baccharis sergiloides Dick Schwenkmeyer 2013-6-11 907 Riverside Approx. 1.5 miles north od highway 74 and Royal Carrizo Road intersection. 854 Comment
  CDA41203  Bacopa monnieri G. D. Barbe 1983-1-24 4035 Riverside Desert Island Country Club, northeast of Rancho Mirage. 0 Comment
  SD186334  Bacopa monnieri G. R. Ballmer 2003-11-22 Riverside Colorado River Valley: Northern Paloverde Valley, east of Hwy 95, ca. 5 miles NE of Blythe, east snd of 2nd Ave., shore of river 86 Comment
  SD232170  Bahiopsis laciniata Scott D. White, Michael Honer 2003-5-27 9419 Riverside Gavilan Hills/Temescal Canyon: Hills and canyons ca. 1 mile north of the I-15 Freeway and 1 mile east of Lake St. exit. Collected south and/or west of unnamed peak. 395 Comment
  CAS-BOT-BC295906  Bahiopsis parishii C. L. Hitchcock 1940-3-30 5873 Riverside Cottonwood Spring Comment
  JOTR34348  Bahiopsis parishii Andre, Jim 2012-4-11 20697 Riverside Joshua Tree National Park. N. end of Hexie Mountains, Hidden Tank Picnic Area, approx. 8 mi south of north entrance station, and 1.4 mi SW of paved road (Rte 11) 1076 Comment
  CDA10405  Baileya pauciradiata G. D. Barbe, T. C. Fuller 1973-3-1 1068 Riverside I-10 exit at road to Wiley s Well, west of Blythe. 0 Comment
  POM350661  Baileya pauciradiata N. C. Cooper 1944-5-20 2642 Riverside Palm Springs. 137 Comment
  UC1931074  Barbarea orthoceras Scott D. White, Justin Wood 2008-7-9 12426 Riverside San Jacinto Mountains: K Flat, from large pond downstream to meadow. Comment
  POM49357  Bebbia juncea Philip A. Munz 1924-6-21 8203 Riverside Temecula Canyon. Comment
  RSA516869  Bebbia juncea Steve Boyd, Thomas S. Elias, B. Roy, S. Meury, S. Zona 1986-3-5 1342 Riverside Mecca Hills: Box Canyon, along Hwy 195 Comment
  RSA696873  Bebbia juncea J. Russell Bruff 1927-11-26 32 Riverside Cottonwood Springs vicinity. Comment
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Oct 9 2010
  JOTR34261  Bebbia juncea var. aspera La Doux, Tasha, M. Harding 2010-4-7 2922 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; in upper reaches of side canyon, approx. 1 mile north of park boundary Comment
  LA103754  Bebbia juncea var. aspera Robert F. Thorne; C. W. Tilforth 1973-5-30 43582 Riverside Coachella Valley, mouth of Morongo Valley at N-end of valley 548 Comment
  UC1281253  Bebbia juncea var. aspera H. E. McMinn 1935-6-27 4057 Riverside Palm Canyon region Palm Canyon Comment
  UC1334660  Bebbia juncea var. aspera Nancy Ryan Zabriskie 1968-10-11 167 Riverside near Palm Springs (Andreas Canyon); Andreas Canyon Comment
  UCD129541  Bebbia juncea var. aspera BLK Date Unknown s.n. Riverside Exact location unknown. Comment
  JOTR32874  Bernardia incana La Doux, Tasha, E. Babich 2008-3-5 3017 Riverside Joshua Tree National Park. NW Eagle Mountains, approx. 3mi NE of Cottonwood Visitor Center; open rocky bajada/pediment 1085 Comment
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Jan 19 2014
  RSA0123123  Bernardia incana Duncan S. Bell, Larry Heronema, Isaac Marck, Evan Meyer 2016-3-22 9010 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in a side canyon off of Martinez Canyon, approximately 7 air miles southeast of the summit of Martinez Mountain. 698 Comment
  UCR172793  Bloomeria crocea Wayne Law, Jun Hu 2000-5-16 19 Riverside Peninsular Ranges; Santa Ana Mtns., Eastern edge of Cleveland National Forest, above Temescal Valley in Indian Canyon, 11.8 mi south of Corona 396 Comment
  RSA0125971  Boechera Scott D. White, Justin M. Wood 2008-7-8 12374 Riverside Hurkey Creek Watershed- Bonita Vista Rd, ca 1/2 miles E and W of Hurkey Creek crossing. 1512 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
  CAS-BOT-BC16259  Boechera glaucovalvula Annie M. Alexander; Louise Kellogg 1941-5-4 2110 Riverside Joshua Tree National Monument. 1249 Comment
  RSA0114929  Boerhavia coccinea Mitch Provance 2012-7-17 712 -15 Riverside San Gorgonio Pass: City of Banning, along E. Lincoln St., vicinity of the Banning Substation, between Hargrave St. and San Gorgonio Ave. 698 Comment
  SD185256  Boerhavia coccinea T. B. Salvato, Kent Beaman 2005-5-16 853 Riverside San Jacinto Mtn foothills, San Jacinto River E of Valle Vista, just downstream from the forest service boudary and N of CA Hwy 74 Comment
  UCR37436  Boerhavia coccinea 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
  JOTR30694  Boerhavia intermedia La Doux, Tasha, Jim Andre 2008-9-13 265 Riverside Joshua Tree National Park. Upper Wilson Canyon on E. side of paved Hwy 991 Comment
  CLARK-A1656-843  Boerhavia torreyana Jon Mark Stewart 1983-10-31 83-49 Riverside Palm Desert 1200 Comment
  UCR101518  Boerhavia triquetra Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10051 B Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, NW base of the range, south of Eagle Mine Rd exit on Hwy I-10. 427 Comment
  JOTR32420  Boerhavia wrightii Harding, Mitzi, T. Herskovits, D. Shade 2011-8-11 9 Riverside Joshua Tree National Park. Queen Mountains; Intersection of Park Blvd. and Pinto Basin road; Small rocky hills and surrounding drainages 1112 Comment
  SD255219  Boerhavia wrightii Duncan S. Bell 2011-9-30 2937 B Riverside Northeastern section of the Arica Mountains; northwest section of Rice Valley; ca. 2.0 air miles southwest of the ghost town of Rice. 234 Comment
  SBBG82061  Bolboschoenus maritimus subsp. paludosus O. F. Clarke 1985-5-13 Riverside San Jacinto River Valley, gun club ponds E of Davis Rd, a short distance N of Lakeview, E of the Bernasconi Hills 426 Comment
  SD255030  Bolboschoenus maritimus subsp. paludosus Duncan S. Bell 2015-8-12 8594 Riverside Colorado Deesrt; Chocolate-Chuckwalla Mountains region: 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
  CAS-BOT-BC145585  Bouteloua aristidoides Peter H. Raven 1958-1-24 11453 Riverside Fargo Canyon. Comment
  UC677603  Bouteloua aristidoides var. aristidoides A. A. Beetle 1942-4-23 3189 Riverside banks of river 24 mi n Blythe; Colorado River Comment
  UCR242303  Bouteloua barbata A. C. Sanders, T. B. Salvato 2012-10-12 40429 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Wileys Well Rd. c. 3 miles north of Wileys Well/ Bradshaw Trail 155 Comment
  RSA0027473  Bouteloua barbata var. barbata Deidre Conocchioli, Billy Sale, Naomi Fraga 2013-9-25 53 Riverside East of Alligator Rock: From I-10 at Desert Center, head south on CA-177 to BLM Rd 394 (dirt). Collection site is 1.1 miles SW of interstate exit ramp. 334 Comment
  SEINET3287492 Image available Brachypodium hybridum O. F. Clarke 2008-5-20 s.n. Riverside Peninsular Range; Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus. 351 Comment
  OBI14836  Brandegea bigelovii Lewis S. Rose 1957-1-8 57018 Riverside Palm Desert 91 Comment
  RSA668362  Brandegea bigelovii C. R. Annable 1995-3-15 2284 Riverside 2.7km SW of Valerie on road to Martinez Canyon. Comment
  RSA77414  Brandegea bigelovii F. W. Peirson 1921-3-23 2387 Riverside Deep Canyon Wash, 12 miles southeast of Palm Springs. 152 Comment
  RSA789361  Brandegea bigelovii Aaron C. Sedgwick, David Fraker 2012-3-28 35 Riverside In the Mecca Hills, take Box Canyon Rd. approximately 6 miles south of Rt. 10. 323 Comment
  SBBG54857  Brandegea bigelovii D. Keil, M. McLeod, D. Walters 1977-3-27 12059 Riverside Box Cyn Rd, ca. 20 mi ENE of Mecca, Orocopia Mtns 274 Comment
  SD80936  Brandegea bigelovii James Henrickson 1969-11-8 4371 Riverside 5 air mi. S of Palm Desert near top of Seven Level Hill at scenic stop 669 Comment
  SDSU21250  Brandegea bigelovii S. H. Bullock 1968-4-10 119 Riverside 17 mi. east of Mecca on Calif. State 195. 457 Comment
  UC1051637  Brandegea bigelovii Francia Chisaki, Peter Kamb 1952-4-6 2196 Riverside on road from Mecca to Blythe (Box Canyon); Box Canyon Comment
  UC373179  Brandegea bigelovii Marcus E. Jones, A. M. 1906-4-20 Riverside Indio Comment
  UC68779  Brandegea bigelovii H. M. Hall Apr. 1905 5896 Riverside Colorado Desert, Chuckwalla Springs Colorado Desert; , Chuckwalla Springs Comment
  UCR21172  Brassica geniculata Steve Boyd 1980-7-3 s.n. Riverside Perris Basin, Motte Reserve. Rocky hills 2.5 mi NW of Perris. Western edge of the reserve and 0.25 mi south of the NW corner of the reserve 518 Comment
  CDA3632  Brassica tournefortii Marius Wasbauer 1960-3-26 Riverside Palm Springs. 0 Comment
  OBI78678  Brassica tournefortii Scott D. White 1995-3-30 2647 Riverside San Jacinto Valley: Moreno Valley, hille ca. 0.7 air mile directly S of 60 Fwy and west bend on Moreno Beach Dr. 579 Comment
  UCR127324  Brassica tournefortii A. C. Sanders, T. B. Salvato, Mitch Provance 2003-4-4 25832 Riverside San Bernardino/Santa Ana River Valley Region, Jurupa Mtns., hill SW of the Jensen Quarry, NW of Sunnyslope 421 Comment
  UCR241840  Brassica tournefortii A. C. Sanders, Timothy W. Chumley 2013-4-2 40730 Riverside Peninsular Range, Temescal Canyon at west side of Horsethief Canyon Rd., south of I-15 Fwy, SE of Corona (Lee) Lake 390 Comment
  CAS-BOT-BC106178  Brickellia desertorum J. C. Roos 1950-11-25 5026 Riverside Dry hills at north end Perris Blvd., Sunnymead. 609 Comment
  RSA78377  Brickellia desertorum J. C. Roos 1950-11-25 5026 Riverside N end Perris Blvd, Sunnymead. 610 Comment
  UCR23272  Brickellia desertorum John C. Roos 1950-10-15 5009 Riverside San Bernardino Mtns., Dry Morongo Canyon, c. l mi south of Riverside-San Bernardino county line 612 Comment
  UCR25197  Brickellia desertorum John C. Roos 1950-12-2 5029 Riverside Sonoran (Colorado) Desert, Eagle Mountains, Munsen ['Monson'] Canyon 1067 Comment
  CAS-BOT-BC100608  Brickellia oblongifolia var. linifolia H. M. Hall 1901-6-1 2142 Riverside San Jacinto Mountains, Easetern base, along the borders of the Colorado Desert Comment
  IRVC12858  Brodiaea terrestris subsp. kernensis B. T. Gittins 1966-5-1 1287 Riverside Santa Rosa Plateau. Peninsular Ranges, Santa Ana Mountains Comment
  RSA740623  Brodiaea terrestris subsp. kernensis Scott D. White, Justin M. Wood 2008-7-8 12377 Riverside Hurkey Creek Watershed- Bonita Vista Rd, ca 1/2 miles E and W of Hurkey Creek crossing. 1512 Comment
  UCR14996  Brodiaea terrestris subsp. kernensis Kirk Taylor 1976-5-23 76-5-23 16 Riverside Peninsular Range; Santa Ana Mtns., Mesa de Colorado, 9 mi west of Murrieta on Tenaja Rd. 549 Comment
  LA13864  Bromus berteroanus F. M. Reed; 1909-4-7 1274 Riverside Box Spring Mountains Comment
  UCR88229  Bromus catharticus A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16073 Riverside Sonoran (Colorado) Desert, Coachella Valley, agricultural area along Ave. 78, 0.4 mi west of Hwy 86 and1.5 mi NW of Oasis, east of Filmore St. -37 Comment
  RSA612806  Bromus diandrus D. L. Banks 1997-3-1 1363 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, west of Pala Road. Reservation lands west of the casino and along Pechanga Creek. 329 Comment
  UCR120894  Bromus diandrus A. C. Sanders, D. Malueg 2002-4-8 24906 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
  UC37680  Bromus grandis H. M. Hall July, 1901 2256 Riverside San Jacinto Mountains, Fuller's Mills Mountains Fuller's Mills Mountains; San Jacinto Mountains, Fuller's Mills Mountains 1615 Comment
  HSC65796  Bromus hordeaceus E. W. Lathrop 1959-5-17 4536 Riverside 14 mi. W of Murrieta Comment
  SEINET244774 Image available Bromus hordeaceus subsp. molliformis A. C. Sanders, D. Malueg 2002-4-8 24908 Riverside Perris-Aguanga Basin; Tucalota Creek along gasline right-of-way, SE of French Valley Airport, off Borel Rd. in NE Murrieta 396 Comment
  SD137962  Bromus madritensis subsp. rubens Darin L. Banks 1995-4-11 173 Riverside Cleveland National Forest; Agua Tibia Wilderness Area; north slope of Agua Tibia mountain; east of the Dripping Springs Alcove area, along the Dripping Springs trail 950 Comment
  RSA191396  Bromus rubens E. W. Lathrop, Robert F. Thorne 1967-9-26 6657 Riverside 6 miles NW of Murrieta. 610 Comment
  RSA774506  Bromus tectorum Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4429 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 W116.64312 487 Comment
  UCR120936  Bromus tectorum A. C. Sanders, Mark Elvin, M. S. Enright 2002-4-16 24957 Riverside The Badlands, Laborde Canyon and adjacent slopes and side canyons, 1 mile east of Mt. Eden, SW of Beaumont 610 Comment
  RSA0034863  Bromus tectorum Victor Duran 1932-5-18 3218 Riverside Idyllwild, San Jacinto Mountains. 1676 Comment
  RSA736556  Caesalpinia gilliesii Scott D. White, Angelia Carey 2004-7-2 10577 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. 549 Comment
  JEPS76396  Caesalpinia virgata L. R. Heckard 1977-3-15 4519 Riverside e. Mecca (lower end of Box Canyon near Garfield St. Junction); Box Canyon 91 Comment
  UC51609  Caesalpinia virgata Jos. Burtt Davy 1902-3-25 7936 Riverside Indio Comment
  UC555386  Caesalpinia virgata H. L. Mason 1928-3-10 Riverside Coachella Mts., Hidden Springs Canyon Comment
  UCR37701  Calandrinia ambigua Robert McKernan 1985-3-26 s.n. Riverside Sonoran (Colorado) Desert, 6 mi north of Desert Center off Hwy 177 Comment
  CAS-BOT-BC438493  Calandrinia ciliata John F. Green 2006-4-18 s.n. Riverside NE of Murrieta, just S of Los Alamos Rd. (Clinton Keith Rd.), on E and W sides of Liberty Rd. border between City of Murrieta and unincorporated French Valley. Comment
  UC1463085  Calandrinia ciliata Arthur S. Barclay and Juan Arguelles 1965-3-27 1895 Riverside vicinity Murrieta (along margins of wheatfields) Comment
  UCR166160  Calandrinia ciliata John F. Green 2005-2-10 s.n. Riverside Peninsular Range, E of Temecula, Rancho California, SE of intersection of Mesa Verdugo and Calle Vista, N of Pauba Valley and south of Buck Mesa 430 Comment
  UCR250131  Calandrinia ciliata A. C. Sanders 2014-4-9 40999 Riverside Peninsular Range, Temescal Canyon, along Temescal Canyon Rd. north of intersection with Indian Truck Trail, c. 0.4 km south of El Hermano Rd., NW of Corona (Lee) Lake 331 Comment
  UCR97445  Calandrinia ciliata A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19864 Riverside Lake Skinner area, lower Rawson Canyon, along road NE of Skinner Lake 457 Comment
  SD229032  Calocedrus decurrens Dick Schwenkmeyer 2012-8-27 804 Riverside 3.2 miles southeast of the intersection of highway 243 and Fuller's Mill road, 7.5 miles north of Idyllwild. 1887 Comment
  UCR107787  Calocedrus decurrens D. L. Banks 1997-5-5 1960 Riverside NW Palomar Mountains, Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, c. 60 m east of its intersection with Pechanga Creek 396 Comment
  RSA68361  Calochortus concolor Verne Grant, Alva Grant 1951-7-19 16089 Riverside Idyllwild road, ca. 1 mile above Highway 74. 1220 Comment
  RSA773121  Calochortus concolor Duncan S. Bell, Ryan Parker 2010-6-1 1232 Riverside San Bernardino National Forest: Rouse Ridge, approximately 2.4 air miles southeast of junction of Highway 74 and forest service road 5S15., Field surveys for potential habitat for the endangered Quino Checkerspot butterfly. 992 Comment
  CAS-BOT-BC488541  Calochortus concolor R. S. Woglum 1941-6-13 3072 Riverside Pines to Palms Road, Santa Rosa Mountains Comment
  RSA773595  Calochortus plummerae Duncan S. Bell, Ryan Parker 2010-6-15 1307 Riverside San Bernardino National Forest: Rouse Ridge, approximately 0.9 air mile southeast of junction of Highway 74 and forest service road 5S15., Field surveys for potential habitat for the endangered Quino Checkerspot butterfly. 740 Comment
  RSA501018  Calochortus splendens Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-1 3137 Riverside Vail Lake area, ridge-top of volcanic substrate w/clay soil, 2 mi W of dam, at edge of escarpment E of Pauba Valley. 518 Comment
  UCR60371  Calochortus splendens R. Balsamo 1989-5-7 s.n. Riverside Santa Ana Mtns/Santa Rosa Plateau, The Nature Conservancy's Santa Rosa Plateau Preserve, 4.1 mi west of Hwy I-15 on Clinton Keith Rd., directly across the road from vernal pools 762 Comment
  RSA674970  Calycadenia tenella Scott D. White, Teresa Salvato 2001-6-8 8575 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  POM351420  Calycoseris wrightii M. B. Dunkle 1937-3-25 4915 Riverside Colorado Desert. Shaver's Well Comment
  UCR279335  Calycoseris wrightii A. C. Sanders, Jim Malusa 2017-3-23 42924 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 2.3 miles east of Iris Pass 787 Comment
  HSC17652  Calyptridium monandrum C. L. Hitchcock, C. V. Muhlick 1964-3-17 23089 Riverside 0.5 mi. SE of Glen Ivy Hot Springs Comment
  SD227882  Calyptridium monandrum A. C. Sanders 1994-5-29 14578 Riverside San Bernardino Mtns.East Branch Millard Canyon, along FS Road 4S45. Roadside at a wash crossing. 1200 Comment
  SDSU17433  Calyptridium monospermum C. Matt Guilliams, Michael and Lori Simpson, Mike Silveira 2007-6-26 378 B Riverside San Jacinto Wilderness State Park, Round Valley Campsite. Ca. 50 meters east of stone buildings near trail junction, along west edge of Round Valley. 2755 Comment
  SDSU19181  Calyptridium monospermum Michael G. Simpson, Jamie Hall, Michael Silveira, Lori Simpson 2007-6-16 2898 Riverside Tahquitz Meadow, San Jacinto Mountains, along trail, ca. 0.6 mile north of Pacific Coast Trail, ca. 1.2 miles northeast of Taquitz Peak. 2408 Comment
  RSA719788  Calyptridium parryi var. parryi Naomi Fraga, John McDonald, Michael Wall 2006-11-16 1875 Riverside Mount San Jacinto State Park, Hidden Lake. 2652 Comment
  UCR19620  Calystegia fulcrata B. Freeman 1969-6-29 690629- 10 Riverside San Jacinto Mtns, University of California James Reserve. Large meadow across from James House, c. 150-200 ft. from road. 1646 Comment
  UCR121325  Calystegia macrostegia subsp. arida A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-22 24994 Riverside Peninsular Range; San Jacinto Mtns. Region, The Badlands; summit of Mt. Eden, SW of Beaumont 717 Comment
  UCR94265  Calystegia macrostegia subsp. intermedia Scott D. White 1996-4-14 3919 Riverside Perris Basin/San Jacinto Mtns., E of Hemet: San Jacinto River Wash near Valle Vista, north of Hwy 74, c. 1.7 mi west of USFS Cranston Fire Station 549 Comment
  UCR98195  Calystegia macrostegia subsp. intermedia Scott D. White 1997-2-9 4672 Riverside Peninsular Range, Elsinore Basin; Temescal Valley: SW of Hwy I-15 between Indian Truck Trail and Lake Street exits, c. 0.5 mi east of Glen Eden 460 Comment
  UC23163  Calystegia macrostegia subsp. tenuifolia Geo. F. Reinhardt June 1897 Riverside San Jacinto Valley San Jacinto Valley (Southern California) Comment
  RSA220961  Calystegia occidentalis subsp. fulcrata E. W. Lathrop 1966-5-8 6411 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR116929  Camissonia A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-9 24214 Riverside Perris-Aguanga Basin region, Hemet, SE of intersection of State Street and Gibbel Rd., small hill (1684 ft. at summit) at east end of Diamond Valley, 1 mi. SSW of Hemet Butte 513 Comment
  CSUSB159  Camissonia bistorta Annette Price 1962-3-31 004 Riverside Growing along road through Citrus Experiment Station, just past station at the curve in the road, UCR campus, Riverside. Comment
  RSA465946  Camissonia bistorta M. B. Dunkle 1934-3-18 3855 Riverside Shavers Valley. Mecca Hills. W. of Shaver's Well. 91 Comment
  RSA559346  Camissonia bistorta Steve Boyd, T. S. Ross 1992-5-15 7396 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
  UCR16568  Camissonia bistorta C. M. Bringle, H. Johnston 1967-4-22 670422- 01 Riverside Peninsular Range, Temescal Canyon, 2.2 mi. south of Santa Fe (Railroad) overpass on Highway 71, and 50 ft. south of Glen Eden (nudist colony) mail box 457 Comment
  UCR41541  Camissonia boothii A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6008 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
  RSA465991  Camissonia boothii subsp. condensata Robert M. Perkins, H. de Forest 1937-3-15 s.n. Riverside Colorado Desert. East of Desert Center. Comment
  RSA676261  Camissonia brevipes Scott D. White 2001-4-3 8267 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  UCR216495  Camissonia brevipes subsp. brevipes Jim Andre, T. La Doux 2009-3-10 11242 Riverside Joshua Tree National Park, south end of the Cottonwood Mountains near Pinkham Wash, just north of aqueduct just inside JTNP boundary, c. 7 miles west of south entrance into park at Cottonwood 542 Comment
  UCR158496  Camissonia californica A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30016 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 488 Comment
  POM13156  Camissonia cardiophylla P. A. Munz, D. Keck 1922-4-9 4785 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 427 Comment
  RSA454737  Camissonia cardiophylla M. B. Dunkle 1933-3-4 3048 Riverside Painted Canyon. Colorado Desert. 30 Comment
  CSUSB195  Camissonia claviformis W. W. Mayhew 1959-2-3 Riverside 10 miles east of Desert Center Comment
  RSA784931  Camissonia claviformis Duncan S. Bell 2012-2-12 3099 Riverside Mecca Hills: approximately 1.25 air miles north of Box Canyon Road, and approximately 4 air miles southwest of Shavers Well. 256 Comment
  UCR101587  Camissonia claviformis Bern Schwenn 1998-4-2 s.n. Riverside Sonoran (Colorado) Desert, S slope of Eagle Mtns, Hayfield 'Cove', a wide cyn mouth c. 2.5 mi. (airline) ENE of Hayfield Pumping Station & 0.75 mi. SE of Hayfield Spring 544 Comment
  RSA550278  Camissonia claviformis subsp. aurantiaca Walter Wisura, J. Dolan, M. Wall 1992-3-24 4618 Riverside 5.5 mi NE of Mecca on Box Canyon Rd. Comment
  RSA727870  Camissonia claviformis subsp. claviformis Naomi S. Fraga, Lisa Rojas 2005-2-10 1352 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 365 Comment
  UCR104923  Camissonia confusa A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20659 Riverside San Jacinto Mountains, north side along Hwy 243, 1.5 mi below Twin Pines Ranch Road (McMullen Flat), north slope of Peak 3740 1067 Comment
  RSA614531  Camissonia hirtella A. C. Sanders, P. Mackay, Tim C. Thomas, O. Clarke 1997-5-4 20635 Riverside UTM 10km cell: NH-1E, 4N. Vista Grande. 1067 Comment
  UCR265813  Camissonia hirtella Mitch Provance 2012-5-24 512- 03 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
  POM6638  Camissonia ignota P. A. Munz 1918-4-27 2162 Riverside Near Corona. Comment
  UCR250564  Camissonia ignota A. C. Sanders 2014-4-25 41065 Riverside Peninsular Range, Temescal Canyon, Richland property between Horsethief Canyon Rd and Hostettler Rd., SW of I-15 392 Comment
  UCR102932  Camissonia pallida George K. Helmkamp 1998-4-3 3077 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Snow Creek area north of Mt. San Jacinto; at edge of stream south of Snow Creek Rd at a point 1.4 mi. south of Calif. Hwy 111 396 Comment
  UCR18169  Camissonia pallida A. C. Sanders 1978-4-2 46 Riverside Sonoran (Colorado) Desert, Living Desert Reserve in Palm Desert 152 Comment
  UCR43031  Camissonia pallida D. C. Hawks 1986-4-16 s.n. Riverside Sonoran (Colorado) Desert, Whitewater Hill, c. 1.5 mi. east of Whitewater 529 Comment
  JOTR01133  Camissonia pallida subsp. pallida Cole, James E. 1941-6-17 923 Riverside Joshua Tree National Park. IN LIVE OAK TANK 1219 Comment
  RSA480033  Camissonia refracta Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, Tim S. Ross 1988-3-10 2160 Riverside Palen Pass at the north end of the Palen Mountains. 500 Comment
  RSA758320  Camissonia refracta Doug Goldman 2005-3-3 3023 Riverside Box Canyon, along the west side of Box Canyon Road, around 10 miles southwest of the intersection with Interstate 10 and around 0.7 miles southeast of Blake Hill 268 Comment
  RSA495787  Camissonia strigulosa Steve Boyd, T. S. Ross, L. Arnseth 1989-3-11 2886 Riverside Vail Lake area, mouth of Temecula Creek Cyn, 1.5 mi west of Vail Lake Dam. 390 Comment
  RSA508003  Camissonia strigulosa Steve Boyd, C. Boyd, K. Boyd, R. Noyes, L. Arnseth 1988-5-28 2305 Riverside Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest. Sandy opening 0.5 mi S of saddle. 1500 Comment
  JEPS31584  Camissoniopsis bistorta W. L. Jepson May 17 1901-Jun 1 1901 1210 Riverside mesas e Riverside Comment
  UC454581  Camissoniopsis bistorta I. J. Condit 1910-6-24 Riverside Idyllwild San Jacinto Mts. 914 Comment
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Mar 21 2011
  UCR174564  Camissoniopsis hirtella Jennifer H. Jones, Thi (Teresa) Bui and Holly Summers 2006-5-31 342 Riverside Peninsular Ranges; San Jacinto Mtns., just down Mt. Edna Road west off of Calif. Hwy 243 1146 Comment
  UC69873  Camissoniopsis ignota Mrs. C. M. Wilder 1905-4-20 87 Riverside near Riverside; Jurupa Hills, Wilder's Canyon Comment
  UC1537608  Camissoniopsis micrantha Gordon H. True Jr. 1935-2-26 20 Riverside Mockingbird Canyon 457 Comment
  JOTR34129  Camissoniopsis pallida subsp. hallii Andre, Jim, T. La Doux, R. B. Kelley 2011-5-4 21090 Riverside Joshua Tree National Park. Long Canyon, up side canyon approx. 400 m. west of main canyon drainage. 1171 Comment
  CLARK-A1528-2300  Capsella bursa-pastoris John C. Roos 1966-3-24 Riverside Hemet Comment
  UCR102856  Capsella bursa-pastoris A. C. Sanders 1997-4-3 20157 Riverside Lake Skinner area, near north foot of Black Mountain, slopes south of Crown Valley 726 Comment
  POM14386  Carex alma Phillip A. Munz 1922-6-30 5904 Riverside Santa Rosa Mountains. 1982 Comment
  POM259165  Carex alma Phillip A. Munz 1940-8-14 15341 Riverside Virgin Spring, near Santa Rosa Peak. 2287 Comment
  CAS-BOT-BC19173  Carex barbarae H. E. Hasse 1903-6-21 s.n. Riverside San Jacinto Mountains. Round Valley. 2895 Comment
  UC537214  Carex heteroneura M. E. Jones Sep 1933 Riverside San Jacinto Mts. Comment
  RSA682365  Carex multicaulis Valerie Soza, Naomi Fraga, Sarah Swartzentruber 2003-6-25 1699 Riverside Junction of Dark Canyon and Fuller Mill Creek. 1494 Comment
  RSA575995  Carex praegracilis Steve Boyd 1981-4-10 s.n. Riverside Gavilan Hills region, canyon at southeastern base of Rocky Bluff Ridge , east of Estelle Mountain and south of Gavilan Plateau. 610 Comment
  POM14314  Carex subfusca Phillip A. Munz 1922-7-6 6040 Riverside Summit of San Jacinto Peak. 3293 Comment
  RSA508010  Carex subfusca Steve Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2297 Riverside Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest. 1500 Comment
  UC1490301  Castilleja angustifolia Rolf Y. Berg 1980-4-2 Riverside ca 2.5 mi from mouth of Whitewater Canyon; Whitewater Canyon Comment
  POM319354  Castilleja applegatei subsp. martinii Patricia Wilder 1968-7-5 4311 Riverside Trail near Idyllwild, San Bernardino National Forest. 1982 Comment
  SBBG47446  Castilleja exserta N. C. Cooper 1949-4-21 1127 Riverside Banning 701 Comment
  UC886538  Castilleja exserta I. W. Clokey and B. C. Templeton 1930-4-9 4712 Riverside Moreno Grade 700 Comment
  GMDRC6583  Castilleja foliolosa J. M. Andre 2012-6-15 30545 Riverside San Jacinto Mountains: west slopes of range along Poppet Flat Rd, Poppet Creek canyon, 3.2 mi. west of Hwy 243 1022 Comment
  RSA400602  Castilleja foliolosa E. Crow 1929-3-17 210 Riverside Glen Ivy Hot Springs, Santa Ana Mts. Comment
  POM43759  Castilleja linariifolia Marcus E. Jones 1924-2-28 s.n. Riverside West of Blythe. Comment
  POM42518  Castilleja pruinosa Marcus E. Jones 1882-6-29 s.n. Riverside [Unspecified] Comment
  CAS-BOT-BC41091  Caulanthus hallii Philip A. Munz 1937-5-30 15093 Riverside Northwest slope of Santa Rosa Mountains. 1828 Comment
  SBBG101780  Caulanthus heterophyllus S. Boyd with T. Ross, M. Hammitt 1991-5-2 6022 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
  UCR104638  Caulanthus heterophyllus D. E. Bramlet, Steve Boyd 1991-5-13 2150 A Riverside Shipley Multi-species reserve. N Domenigoni Hills. 1.37 km SE of the intersection of Warren Road and Simpson Ave., on the large peak in Section 31, near the end of the old mine road Comment
  SEINET5342473  Caulanthus lasiophyllus N. H. Holmgren, Patricia Kern Holmgren; Ruth E. Kern 1973-3-21 6427 Riverside Big Maria Mountains, 12 airline miles north of downtown Blythe. 290 Comment
  JEPS42363  Ceanothus cordulatus W. L. Jepson 1903-8-8 2317 Riverside trail below Round Valley; San Jacinto Mt. 2895 Comment
  SBBG71349  Ceanothus cordulatus M. N. Ackley 1929-5-19 Riverside Idyllwild 1676 Comment
  RSA552487  Ceanothus crassifolius Steve Boyd 1992-2-21 6667 Riverside Southern Santa Ana Mountains, San Mateo Cyn Wilderness Area. Potrero de la Cienega area along Morgan Trail from Morrell Canyon south 701 Comment
  SD138816  Ceanothus crassifolius Craig Reiser 1993-5-17 Riverside Agua Tibia Wilderness Area, south of Woodchuck Campground and Highway 79 Growing with both putative parents (IPB 5/06) Comment
  SD152769  Ceanothus crassifolius Steve Boyd 1993-3-14 7726 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Northeastern corner of the wilderness, south of Elsinore Peak, in borad saddle on high ridge forming east side of Wildhorse Canyon. 975 Comment
  RSA0019603  Ceanothus crassifolius Douglas A. Springer 1981-2-16 12 Riverside 3.9 miles NW of California State Hwy. 74 on Santa Rosa Rd. approx. 5 miles from Perris. [Gavilan Hills] Comment
  LA30343  Ceanothus cuneatus Mary V. Hood; 1945-3-25 45- 2 -k* Riverside Aguanga 587 Comment
  POM13800  Ceanothus cuneatus P. A. Munz 1922-4-30 5132 Riverside Tuscalota Creek, south of Hemet. Comment
  RSA575056  Ceanothus cuneatus Steve Boyd 1981-3-4 810304 -J Riverside Gavilan Hills region, low hill and adjacent flats along Gavilan Creek drainage at the southwest end of Harford Springs County Park on the Gavilan Plateau, north of Ida Leeona Road and east of the trailer park. 610 Comment
  RSA770432  Ceanothus greggii var. perplexans Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4889 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
  UC1070690  Ceanothus greggii var. perplexans A. E. Wieslander 1929-4-2 52 Riverside n slope San Jacinto Mts. San Jacinto quad. 1371 Comment
  UC1073272  Ceanothus greggii var. perplexans George B. Rossbach 1955-4-28 344 Riverside just S of N boundary of San Bernardino National Forest, San Jacinto Mountains, Route 78, SE of Banning Comment
  CHSC1510  Ceanothus integerrimus var. puberulus 1935-4-19 Riverside San Jacinto Pass. 1828 Comment
  HSC47408  Ceanothus leucodermis Richard Spjut, C. E. Edison 1978-5-5 5021 Riverside Between Idyllwild and Banning along Hwy. 243 in the San Jacinto Mtns. 1220 Comment
  RSA570001  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7916 Riverside Palomar Range south of Vail Lake at the north base of Agua Tibia Mountain, Agua Tibia Wilderness Area, Cleveland National Forest. Along trail extending south from end of Woodchuck Road. 792 Comment
  SBBG105060  Ceanothus ophiochilus S. Boyd with T. Ross 1993-3-23 7891 Riverside Palomar Range S of Vail Lake, N base of Agua Tibia Mtn, along trail extending S from end of Woodchuck Rd 792 Comment
  UC1594221  Ceanothus ophiochilus Steve Boyd, Tim Ross, Laurel Arnseth 1989-3-31 3097 Riverside 1 mi W of Vail Lake 609 Comment
  SEINET10778077  Ceanothus perplexans Dylan O. Burge 2007-3-21 Burge DOB 802 d Riverside San Jacinto Mountains, along Hwy 243, 16.1 road miles (25.8 km) north of Idyllwild, near the turn-off for Poppet Flat Road, 17.2 km 319 deg. (True) NNW of Idyllwild. 1280 Comment
  UCR19669  Ceanothus tomentosus E. B. Eldred 1977-5-23 s.n. Riverside Peninsular Range, Turnout on I-15, 5 miles south of Temecula 305 Comment
  UCR248009  Celtis sinensis O. F. Clarke 2009-9-1 s.n. Riverside Riverside, UCR Botanic Garden 412 Comment
  CAS-BOT-BC277185  Centaurea X pouzinii F. Willmarth 1961-10-18 s.n. Riverside Old Fuller Rancho, near Corona Comment
  CDA7294  Centaurea X pouzinii F. J. Willmarth 1961-10-18 Riverside Old Fuller Rancho, near Corona. 0 Comment
  UC878315  Centaurium exaltatum I. W. Clokey and E. G. Anderson 1935-8-21 6790 Riverside Hemet Lake 1300 Comment
  RSA757456  Centranthus ruber Robert F. Thorne, Walter Wisura, Dave Mitchener 1982-1 55194 Riverside along Ortega Highway; Cleveland National Forest 732 Comment
  RSA767270  Centromadia pungens subsp. laevis Scott D. White 2009-8-10 13353 Riverside Temescal Valley: City of Temecula, West bank of Murrieta Creek, from Rancho Califonria Rd to Cherry St. 306 Comment
  SD154107  Centromadia pungens subsp. laevis B. L. Jones 2003-5-29 Riverside Lake Elsinore area, just north of intersection of Corydon Road and Grand Road Comment
  UCR281273  Centromadia pungens subsp. laevis Mitch Provance, John Hazlett, Matt K. Beyers 2017-4-19 417- 49 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
  UCR195115  Cerastium glomeratum A. C. Sanders, Tim Thomas 2008-8-1 35960 Riverside Peninsular Range; San Jacinto Mtns., lower Coldwater Creek near Mountain Center, SSE of Keenwild Fire Station 1372 Comment
  UCR241395  Cerastium glomeratum T. B. Salvato 2013-3-22 7393 Riverside Perris-Aguanga Basin, southern end of Menifee Valley, between Hwy 215 and Winchester Rd (Hwy 79), on Los Alamos Rd at its crossing of Warm Springs Creek 402 Comment
  JEPS64758  Cercidium floridum subsp. floridum W. L. Jepson 1928-4-23 12545 Riverside Shavers Well Colorado Desert 152 Comment
  UC863505  Cercidium floridum subsp. floridum C. L. Hitchcock 1940-3-29 5844 Riverside 12 mi e Indio 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
  CAS-BOT-BC279537  Chaenactis artemisiifolia Edmund C. Jaeger 1932-5-12 s.n. Riverside Aguanga 600 Comment
  JEPS8905  Chaenactis artemisiifolia W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1274 Riverside San Jacinto River to Strawberry Valley Comment
  SDSU14065  Chaenactis artemisiifolia Jonathan S. Austin, Michael G. Simpson 2002-4-20 17 Riverside Near parking area off Tornado road adjacent to riparian area north of Santa Margarita river, Santa Margarita Ecological Reserve. 233 Comment
  UC894410  Chaenactis artemisiifolia E. C. Jaeger 1922-6-23 Riverside w slope of San Jacinto Mts. San Jacinto Mts. 1005 Comment
  UCR154449  Chaenactis artemisiifolia A. C. Sanders, Mike Misenhelter 2005-6-15 30960 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
  UCR213535  Chaenactis artemisiifolia A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37805 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, under powerlines near dirt extension of Lake St., 1.1 mi. NW (356 deg. ) of intersection of I-15 and Lake St. 549 Comment
  CAS-BOT-BC276386  Chaenactis carphoclinia Marcus E. Jones 1906-4-27 s.n. Riverside Indio Comment
  RSA784770  Chaenactis carphoclinia Duncan S. Bell 2012-3-18 3174 Riverside Mecca Hills; southeastern section of hills; up a side canyon of the east fork of Hidden Springs Canyon, approximately 1.5 air mile southwest of Hidden Spring. 129 Comment
  UCR104818  Chaenactis carphoclinia George K. Helmkamp, E. A. Helmkamp 1998-2-18 2732 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  JEPS8661  Chaenactis carphoclinia var. carphoclinia W. L. Jepson 1927-4-27 11664 Riverside near Mecca; Mecca Hills, Painted Canyon 76 Comment
  POM13309  Chaenactis carphoclinia var. carphoclinia E. C. Jaeger 1921-3-20 1073 Riverside Box Canyon, Colorado Desert. Comment
  RSA517924  Chaenactis carphoclinia var. carphoclinia Steve Boyd, B. Roy, Thomas S. Elias, S. Meury, S. Zona 1986-3-5 1352 Riverside Hwy 195, N base of the Orocopia Mts., halfway between I-10 & Box Canyon. Comment
  UCR30051  Chaenactis carphoclinia var. carphoclinia A. C. Sanders 1983-4-24 3796 Riverside Sonoran (Colorado) Desert, alluvial fan at the NW end of Orocopia Mountains along Hwy 195, c. 3 miles NE of Shavers Well and 2.7 miles NE of the point where the road enters Box Canyon 367 Comment
  CAS-BOT-BC276929  Chaenactis fremontii H. M. Hall 1902-4-1 2807 Riverside Colorado Desert. Coyote Canyon 152 Comment
  CAS-BOT-BC276933  Chaenactis fremontii J. H. Thomas 1949-2-28 62 Riverside Southern part of Palm Springs Comment
  SD30666  Chaenactis fremontii Edith A. Purer 1935-4-21 6456 Riverside Valley floor, near Palm Springs. Comment
  UCD130310  Chaenactis fremontii David Charlton 1988-2-25 1225 Riverside Alluvial Fan, south side of Little San Bernardino Mountains. Fargo Canyon Road to Cottonwood Wash, south of Joshua Tree National Park, parallel to I-10. 5 miles east of Jct Dillon Road and Fargo Canyon Road. 609 Comment
  UCR226911  Chaenactis fremontii Jim Andre 2011-2-2 16212 Riverside Coachella Valley, west of Palm Springs along Hwy 111 (south side) at base of San Jacinto Mtns at Windy Point 5.5 mi from junction with Hwy I-10 259 Comment
  UCR237689  Chaenactis fremontii Orlando Mistretta, Duncan S. Bell, Janet Beckman, Joy England, K. Kane, et al. 2010-4-12 4422 Riverside San Bernardino Mountains, Whitewater Canyon, along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center, Whitewater Trout Farm, in the vicinity of Bonnie Bell 488 Comment
  UCSB33602  Chaenactis fremontii Simmons, Karen 1979-3-25 Riverside Just south of Cottonwood Springs, 30.5 mi. south of White Tank Campground on Pinto Basin Road, Joshua Tree National Monument 152 Comment
  UCSB63960  Chaenactis fremontii Scora, Rainer 1966-4-1 Riverside 400 meters before Hidden Springs Oasis on road from Thousand Palms Comment
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Sep 10 2011
  CLARK-A1528-184  Chaenactis glabriuscula C. M. Flanagan 1973-5-31 OO 644 Riverside Morongo Indian Reservation 975 Comment
  RSA528099  Chaenactis glabriuscula var. glabriuscula Steve Myers 1991-4-1 91 -27 Riverside City of Banning, W of Fields Road, N of Interstate 10 & S of the Morongo Indin Reservation 671 Comment
  RSA594507  Chaenactis glabriuscula var. glabriuscula Darin L. Banks, Dylan Hannon 1996-5-3 0993 A Riverside Agua Tibia Mountains; Cleveland National Forest; Dripping Springs Campground, 30 m N of campsite #9. 487 Comment
  JEPS8846  Chaenactis stevioides W. L. Jepson 2260 Riverside Strawberry Valley, San Jacinto Mt., Strawberry Valley 1676 Comment
  POM230183  Chaenactis stevioides I. W. Clokey 1933-4-17 6942 Riverside Cottonwood Springs. Comment
  UC894494  Chaenactis stevioides C. L. Hitchcock 1940-3-29 5853 Riverside ca 100 yards e of Spring; Cottonwood Canyon Comment
  UCR167062  Chaenactis stevioides Scott D. White 2005-3-29 10836 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
  POM159842  Chaenactis stevioides var. stevioides E. C. Jaeger 1928-3-26 s.n. Riverside Eagle Mts, Colorado Desert. Comment
  JOTR34147  Chaenactis xantiana La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler, D. Shade 2011-4-26 3164 Riverside Joshua Tree National Park. Pleasant Valley, south of Gold Coin mine complex; mud flats and sandy hummocks on valley floor (Stop 5) 959 Comment
  JEPS48829  Chamaesyce Marjorie D. Clary 1932-5-26 943 Riverside Hexie Mountain, Pleasant Valley Comment
  RSA0045133  Chamaesyce abramsiana A. C. Sanders, T. B. Salvato, Rob Shoener 2012-8-22 40394 Riverside Bradshaw Trail, Chuckwalla Bench area on S side of Chuckwalla Mountains, 0.9 km west of Dupont Rd. 757 Comment
  JOTR32637  Chamaesyce albomarginata La Doux, Tasha, K. Matthews, S. Szabo, J. Van Warmerdam, B. Truesdell 2007-10-4 2559 Riverside Joshua Tree National Park. Little San Bernardino Mountains: Convergence of Lower Covington Flat and Smith Water Canyon (Stop 3) 1362 Comment
  CDA4811  Chamaesyce maculata R. D. Goeden, D. W. Ricker 1965-6-18 s.n. Riverside North side of Blaine Street just west of Gage Canal, Riverside. Comment
  RSA499007  Chamaesyce maculata L. C. Wheeler 1932-9-4 1330 Riverside Santa Ana River at Chino Creek. 152 Comment
  RSA727599  Chamaesyce micromera Naomi Fraga, Lisa Rojas 2005-2-10 1388 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 361 Comment
  SBBG92825  Chamaesyce micromera D. Charlton 1988-2-18 1146 Riverside S side of Little San Bernardino Mtns, Fargo Cyn Rd to Cottonwood Wash, parallel to Interstate 10 609 Comment
  JEPS52387  Chamaesyce polycarpa Ethel Rockwell 400 Riverside northwest Colorado Desert, Edom Comment
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Sep 7 2011
  POM2793  Chamaesyce polycarpa P. A. Munz 1918-4-28 2150 Riverside Elsinore. Comment
  RSA433501A  Chamaesyce polycarpa M. B. Dunkle 1934-2-19 3842 Riverside San Juan Canyon. 610 Comment
  RSA599304  Chamaesyce polycarpa L. C. Wheeler 1954-9-25 7095 Riverside South end of Mule Mountains, near Ripley. Comment
  UC2026420  Chamaesyce polycarpa Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10064 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. Comment
  RSA614498  Chamaesyce polycarpa var. polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-5 2664 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  RSA651896  Chamaesyce polycarpa var. polycarpa Douglas A. Springer 1981-2-16 11 Riverside 3.9 miles NW of California State Hwy. 74 on Santa Rosa Rd. approx. 5 miles from Perris. Comment
  RSA0039850  Chamaesyce setiloba Duncan S. Bell, Evan Meyer 2014-4-2 6502 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern section of range; approximately 1 air mile northwest of Canyon Spring. 422 Comment
  RSA778526  Chamaesyce setiloba Amber Swanson, Linda Jean Foster 2011-10-8 630 Riverside Jct of Blythe Rice Rd and Hwy 62. 287 Comment
  RSA0000022  Cheilanthes X fibrillosa S. B. Parish 1882-06 s.n. Riverside Oak Cliff, San Jacinto Canyon Comment
  RSA4  Cheilanthes clevelandii J. T. Howell 1927-8-2 552 Riverside Near Banning. 671 Comment
  RSA0104417  Cheilanthes covillei Duncan S. Bell 2015-2-6 7736 Riverside Santa Rosa Mountains; along Cactus Spring Trail, where the trail crosses Horsethief Creek. 1054 Comment
  RSA301975  Cheilanthes covillei J. R. Shevock 1970-12-13 567 Riverside Cap Rock, Joshua Tree 1371 Comment
  SEINET804427  Cheilanthes covillei Carl B. Wolf 1932-1 4277 Riverside Colorado Desert. Little San Bernardino Mountains. Morongo Wash at Riverside County line. 731 Comment
  UCD137406  Cheilanthes covillei Ed LaRue 1989-8-31 s.n. Riverside Tule Valley, E and slightly N of town of Aguanga; ca. 1 mi. S of boundary of Cahuilla Indian Reservation. 1158 Comment
  CAS-BOT-BC70297  Cheilanthes newberryi E. W. Lathrop 1965-4-26 5695 Riverside 4 miles southwest of Murrieta Comment
  CAS-BOT-BC68096  Cheilanthes parryi Elizabeth Parsons Hawver 1917-4-1 s.n. Riverside Palm Springs Comment
  POM120575  Cheilanthes parryi Marcus E. Jones 1906-4-26 s.n. Riverside Indio Comment
  POM12204  Cheilanthes parryi P. A. Munz, D. Keck 1922-4-9 4823 Riverside Colorado Desert: so. base of Eagle Mtns. 3 mi. no. east of the Hayfields. Comment
  POM885  Cheilanthes parryi Anonymous 1904-1 s.n. Riverside Chino Canyon, Palm Springs Comment
  RSA0042110  Cheilanthes parryi Duncan S. Bell, LeRoy Gross 2014-3-6 6193 Riverside Santa Rosa Mountains; Toro Canyon on the east side of Martinez Mountain. 259 Comment
  RSA336041  Cheilanthes parryi R. F. Thorne, Walter Wisura, A. Shmida, R. Whittaker 1978-4-23 52022 Riverside Chino Canyon Comment
  UC197936  Cheilanthes parryi S. B. and W. F. Parish April, 1882 504 Riverside Agua Caliente; Mts bordering Colorado Desert Comment
  UCR75040  Cheilanthes parryi A. C. Sanders, E. J. Lawlor 1992-4-4 12154 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  RSA598056  Cheilanthes viscida S. B. Parish, W. F. Parish 1881-03 506 Riverside Whitewater, desert side of San Bernardino Mts. Comment
  RSA85545  Cheilanthes viscida F. W. Peirson 1921-3-22 2371 Riverside Murray Canyon, south side in canyon 457 Comment
  RSA0014459  Chenopodium Justin M. Wood, J. Miner 2010-4-29 1532 Riverside Coachella Valley: Bermuda Dunes. Near intersection of Avenue 38 and Varner Rd. 37 Comment
  CDA23353  Chenopodium album Magally 2007-12-1 PDR# 1377324 Riverside Thermal, S-E Jacson & 58th Ave 0 Comment
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May 21 2016
  UCR103222  Chenopodium berlandieri Scott D. White 1994-10-17 2463 .2 Riverside Temecula Valley, Murrieta Creek channel, downstream from confluence with Santa Gertrudis Creek, south of bridge at Winchester, north of Long Valley Road. 305 Comment
  UCR125294  Chenopodium berlandieri A. C. Sanders 2002-11-21 25627 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy,' mouth of Bixby Canyon 457 Comment
  UCR20857  Chenopodium berlandieri A. C. Sanders 1978-8-27 00277 Riverside San Jacinto Mountains, James Reserve, above Lake Fulmor 1646 Comment
  SBBG101707  Chenopodium californicum S. Boyd with T. Ross, M. Hammitt 1991-5-2 6080 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
  UCR17966  Chenopodium californicum A. C. Sanders 1976-4-20 00278 Riverside San Jacinto/Santa Rosa Mtns., 9.5 mi. SE of Anza in White Wash, a tributary of Coyote Canyon 976 Comment
  JOTR01006  Chenopodium californicum Cole, James E. 1941-6-9 855 Riverside Joshua Tree National Park. STUBBY SPRING AREA 1371 Comment
  UCR157948  Chenopodium desiccatum T. B. Salvato, A. C. Sanders 2005-5-17 919 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
  UCR256762  Chenopodium murale T. B. Salvato, Matthew Malle, Thomas M. Sullivan Jr 2014-4-22 7886 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
  UCR163883  Chilopsis linearis B. G. Pitzer 2001-8-19 4340 Riverside Peninsular Range; Santa Rosa Mountains, Carrizo Canyon, sheep guzzler c. 0.5 mi. SW of where Hwy 74 crosses canyon 701 Comment
  OBI20566  Chilopsis linearis subsp. arcuata H. E. McMinn 1935-6-27 4074 Riverside Palm Springs Comment
  RSA455303  Chilopsis linearis subsp. arcuata Joseph A. Ewan 1931-4-4 4153 Riverside North of Shaver s Canyon. 122 Comment
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Jul 5 2010
  RSA455310  Chilopsis linearis subsp. arcuata George R. Johnstone, G. R. Johnstone 1930-4-14 14659 Riverside Shavers Well Comment
  UC489077  Chimaphila menziesii C. V. Meyer 1928-6-14 451 Riverside San Jacinto Mts., Saunder's Meadow 1676 Comment
  RSA689435  Chloris truncata R. E. Riefner 2003-10-21 3 -461 Riverside Menifee Valley, along Newport Road 1 mi. E of Goetz Road intersection. 442 Comment
  UCR113856  Chloris virgata Mitch Provance 2000-6-24 2038 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  JOTR28749  Chorizanthe brevicornu var. brevicornu La Doux, Tasha, Bill Truesdell 2004-2-24 1030 Riverside Joshua Tree National Park. Eagle Mountains; Trail to Lost Palms Oasis, southeast of Cottonwood Oasis 914 Comment
  POM13298  Chorizanthe brevicornu var. brevicornu E. C. Jaeger 1921-3-25 s.n. Riverside Corn Springs. Comment
  RSA392606  Chorizanthe brevicornu var. brevicornu M. B. Dunkle 1935-4-17 4559 Riverside W. of Wiley Well. Colorado Desert. Comment
  UC849120  Chorizanthe brevicornu var. brevicornu Lewis S. Rose 1937-4-10 37184 Riverside 8 mi n Indio; n of Indio 137 Comment
  UCR30088  Chorizanthe brevicornu var. brevicornu George K. Helmkamp 1983-4-5 483 26 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  UCR121070  Chorizanthe coriacea D. E. Bramlet 1989-4-6 1812 A Riverside Perris-Aguanga Basin, Lake Skinner area, upland between Rawson Canyon and Tucalota Creek 457 Comment
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Sep 17 2011
  JEPS57630  Chorizanthe corrugata W. L. Jepson 1927-4-12 11667 Riverside Painted Canyon, Mecca Hills. Comment
  POM128750  Chorizanthe corrugata F. W. Peirson 1927-4-12 7175 Riverside Painted Canyon. Comment
  RSA392657  Chorizanthe corrugata N. C. Cooper 1949-4-8 3235 Riverside Indio. Mecca Pass, east of Indio. 457 Comment
  CAS-BOT-BC191354  Chorizanthe leptotheca Mrs. J. D. Abrams 1901-5-1 s.n. Riverside Elsinore Comment
  UCR205450  Chorizanthe leptotheca Diane Menuz 2008-6-19 465 Riverside Peninsular Ranges: San Jacinto Mts, Garner Valley; c 0.3 mi east of Hwy 74, north of Morris Ranch Rd 1374 Comment
  NY468374  Chorizanthe parryi G. H. True Jr. 1936-4-10 221 Riverside Sycamore Canyon, Box Springs 365.8 Comment
  UC1537266  Chorizanthe parryi var. parryi Gordon H. True Jr. 1936-4-10 221 Riverside Box Springs , Box Springs (s slope Sycamore Canyon) 365 Comment
  UCR211705  Chorizanthe polygonoides subsp. longispina Fred M. Roberts, Kerry M. Byrne 2006-5-4 6339 Riverside Perris-Agunaga Basin, West Hemet Hills, 3.2 km west of the west end runway at Hemet Ryan Airport and 1.3 km east-northeast of the junction of Stowe and Winchester Roads 508 Comment
  RSA496372  Chorizanthe polygonoides var. longispina Steve Boyd, Tim S. Ross, Laural Arnseth 1989-3-19 3046 Riverside Vail Lake area, 0.75 mile NW of dam. 622 Comment
  RSA500097  Chorizanthe polygonoides var. longispina Steve Boyd, Tim S. Ross, Laural Arnseth 1989-4-2 3213 Riverside Vail Lake Area, W end of bench on S flank of Oak Mt. 518 Comment
  UCR121166  Chorizanthe polygonoides var. longispina D. E. Bramlet 1989-4-7 1815 Riverside Perris-Aguanga Basin region, Lake Skinner County Park, south of Lake Skinner, 500 ft. west of Old Warren Rd. and 100 ft. north of the E-W access road 518 Comment
  RSA543831  Chorizanthe procumbens Steve Boyd, Orlando Mistretta 1991-5-22 6294 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dorland Mtn, W of Kolb Crk. 549 Comment
  RSA65245  Chorizanthe rigida F. W. Peirson 1927-4-12 7174 Riverside Painted canyon, near Mecca. Comment
  RSA681037  Chorizanthe rigida Scott D. White, Michael Honer 2003-5-14 9267 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  UC68685  Chorizanthe rigida H. M. Hall May 1905 5906 Riverside Chuckawalla Spr , Chuckawalla Spr (Colorado Desert) Comment
  RSA522757  Chorizanthe staticoides Steve Boyd, Tim S. Ross, L. Arnseth 1990-3-29 3864 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
  POM12872  Chrysolepis sempervirens P. A. Munz 1922-7-6 6018 Riverside Tahquitz Valley, San Jacinto Mts. 2226 Comment
  VVC1352  Chrysothamnus paniculatus A. C. Sanders, J. Mac 1996-11-23 19656 Riverside San Bernardino Mtns., Whitewater Canyon, just above Bonnie Bell, 2.3 miles below the stream crossing near the fish hatchery, E of VAMB Captain 534 Comment
  UC1546706  Chylismia brevipes subsp. brevipes Barry A. Prigge 1988-2-21 7837 Riverside 2 mi w Clemens Well; Colorado Desert, Orocopia Mountains 228 Comment
  CAS-BOT-BC160605  Chylismia claviformis subsp. aurantiaca Javier Penalosa 1963-4-10 s.n. Riverside Deep Canyon, 3 mi. south of Palm Desert 213 Comment
  CAS-BOT-BC289646  Cirsium occidentale var. californicum H. M. Hall 1901-6-1 2286 Riverside Vicintiy of Chalk Hill, San Jacinto Mountains 1584 Comment
  UC1523626  Cirsium vulgare Robert F. Thorne, Steve Boyd, and Earl Lathrop 1985-7-18 61280 Riverside near Murrieta-Guava St. roads (a few mi s of Murrieta); De Luz Arroyo 385 Comment
  RSA466522  Cistanthe ambigua Robert L. Dressler 1949-3-19 398 Riverside Box Canyon, Orocopia Mts. Comment
  POM199346  Cistanthe monandra Joseph A. Ewan 1932-4-8 7036 Riverside Seven Palms near Garnet Comment
  RSA329670  Cistanthe monandra Gary D. Wallace 1966-3-26 250 Riverside Whitewater Canyon; 13 mi. E. of Banning, San Bernardino Nat l For. 427 Comment
  RSA387366  Cistanthe monandra Steve Boyd 1986-4-19 1701 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Road. Comment
  RSA466603  Cistanthe monandra N. C. Cooper 1944-6-17 1423 Riverside San Jacinto Mtns. above Banning. 1220 Comment
  RSA791720  Clarkia Robert F. Thorne, Walter Wisura, David Mitchener 1982-05 55196 Riverside Cleveland National Forest: Along Ortega Hwy. 732 Comment
  CAS-BOT-BC164338  Clarkia dudleyana A. C. Sanders 1994-5-29 14568 Riverside San Bernardino Mountains: Millard Canyon, at stream crossing just below site of Millard Station on FS Road 2S05 1100 Comment
  POM3017  Clarkia dudleyana H. M. Hall 1901-06 2265 Riverside In San Jacinto Mountains, canyons of the west side. 1524 Comment
  RSA586329  Clarkia epilobioides D. L. Banks, Steve D. Boyd 1995-5-3 194 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
  CLARK-A1528-2655  Clarkia purpurea Mark Wilson 1980-5-30 5-30- 80 /3 Riverside San Timoteo Canyon Comment
  SEINET7072848  Clarkia purpurea A. G. Vestal 1963-5-20 s.n. Riverside Long Valley Road at Tececula and at the junction with Route 395 (115). Coordinate datum: WGS84/NAD83. (33? deg. 30' 3" North Latitude, -117? deg. 9' 3" West Longitude, Coordinate datum: NAD27.). Comment
  UCR232073  Clarkia purpurea John F. Green 2008-4-24 16- 03 Riverside Peninsular Range; SE Gavilan Hills, Lake Elsinore, west of Hwy 74 453 Comment
  UC7891  Claytonia parviflora subsp. parviflora Mrs. Gregory 1892-1 Riverside San Jacinto Comment
  UCR121656  Claytonia parviflora subsp. viridis A. C. Sanders 1995-4-13 16488 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
  RSA386223  Clematis lasiantha E. Crow 1929-4-7 292 Riverside East end of Corona Skyline Drive, Santa Ana Mountains. Comment
  JOTR16830  Clematis pauciflora Wanrow, E. & Moore, Sue 1968-3-13 s.n. Riverside Joshua Tree National Park. BARKER DAM TRAIL, 200 YARDS SOUTH OF LAKE EDGE 1325 Comment
  RSA386288  Clematis pauciflora N. C. Cooper 1944-5-7 1191 Riverside Banning. Comment
  SD129279  Clematis pauciflora Steve Myers 1990-3-21 Riverside Santa Rosa Plateau area: along Los Gatos Road, 1/2 mi. S of Buena Vista Road (2 mi. W of Sandia Canyon, & 0.1 mi. N of San Diego County line). 366 Comment
  POM14901  Cleome isomeris Mary F. Spencer 1922-3-27 s.n. Riverside Shavers Canyon. Mecca, Colorado Desert. Comment
  RSA440817  Cleome isomeris M. B. Dunkle 1933-3-3 3030 Riverside Garnet Station, Colorado Desert 91 Comment
  RSA440823  Cleome isomeris E. Crow 1928-11-12 44 Riverside Morongo Valley, Colorado Desert. Comment
  UCR42621  Cnicus benedictus B. G. Pitzer, Karen Kirtland 1986-5-6 0264 Riverside 1.5 miles SE of Murrieta along Murrieta Creek; bounded north by Fig St, on south by Elm St., on east by Adams ave, and on west by Jefferson ave. 317 Comment
  POM307241  Collinsia concolor Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2107 Riverside Santa Rosa Mountains. Comment
  RSA0117424  Collinsia concolor Steve D. Boyd, Tim S. Ross, L. Arnseth, J. Bonilla 1990-4-2 3985 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  UC1563032  Collinsia concolor Steve Boyd, Tim Ross, Laurel Arnseth 1989-4-1 3170 D Riverside just sw Vail Lake dam (recent burn in hills); Vail Lake area 487 Comment
  UCR43429  Collinsia concolor B. G. Pitzer 1986-5-4 195 Riverside Moreno Badlands, c. 1 mi west of Jackrabbit Trail, along Hwy 60 701 Comment
  RSA192317  Collinsia heterophylla E. W. Lathrop 1965-5-9 5724 Riverside 6 miles W of Murrieta. Comment
  UC1608269  Collinsia heterophylla Steve Boyd, Orlando Mistretta 1992-4-23 7073 Riverside following San Mateo Trail upstream to confluence with Bluewater Canyon (along San Mateo Creek from Riverside Co. line, San Mateo Canyon Wilderness Area, Southern Santa Ana Mts.); Southern Santa Ana Mts., San Mateo Canyon Wilderness Area 243 Comment
  SD211456  Colubrina californica Carolyn Martus, Joseph Betzler, Caesara Brungraber, Lance Woolley 2008-4-23 1217 Riverside Northwest of the Blythe airport and in the washes east of the McCoy mountains. Comment
  UCR211504  Colubrina californica Jim Andre, T. La Doux 2008-9-13 10276 Riverside Sonoran (Colorado) Desert, Eagle Mountains at Joshua Tree National Park boundary, along aqueduct access road 355 Comment
  UCR115163  Commelina benghalensis Mitch Provance 2000-10-28 2291 Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 290 Comment
  UCR189783  Convolvulus simulans Diane Menuz 2006-4-21 049 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, near Mesa de Burro, on and north of Waterline Road 570 Comment
  RSA619541  Conyza bonariensis D. L. Banks 1997-5-5 1990 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
  RSA561493  Conyza canadensis Steve Boyd, Timothy S. Ross, David E. Bramlet 1992-9-9 7657 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
  RSA588812  Conyza canadensis D. L. Banks, Steve Boyd 1995-10-17 0765 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along lower Arroyo Seco, S of the Dripping Springs Campground. Along the broad alluvial benches N of where Arroyo Seco turns to the E. 512 Comment
  UC468806  Conyza canadensis F. M. Reed 1905-9-25 406 Riverside Terraces Ranch Comment
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Oct 20 2007
  RSA575927  Conyza coulteri Steve Boyd 1994-9-29 8367 Riverside Floodplain E of dike along San Jacinto River, W of Sedco Hills community. 381 Comment
  UCR256333  Conyza coulteri Duncan S. Bell 2012-3-18 3201 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
  JEPS6811  Cordylanthus nevinii Carl V. Meyer 1928-7-26 528 Riverside Roach Sawmill site San Jacinto Mountains 2072 Comment
  UCR58305  Cordylanthus rigidus George K. Helmkamp 1989-10-7 s.n. Riverside San Bernardino Mtns., N edge of the fish hatchery in Whitewater Canyon, north of I-10 700 Comment
  RSA0011002  Cordylanthus rigidus subsp. setiger Duncan S. Bell, Colleen Wheeler 2010-7-19 1623 Riverside San Bernardino National Forest: Garner Valley, in the vicinity of Tool Box Spring trailhead, approximately 3 air miles southeast of junction of forest service road 6S04 and forest service road 6S13. 1386 Comment
  JOTR29613  Coreopsis bigelovii Andre, Jim 2006-4-26 6751 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
  POM355978  Coreopsis bigelovii Ora M. Clark 1929-2-23 1562 Riverside North Whitewater. Comment
  CAS-BOT-BC287878  Coreopsis californica Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater 304 Comment
  POM8240  Coreopsis californica P. A. Munz, R. D. Harwood 1920-3-20 3385 Riverside Temescal Canyon. 366 Comment
  RSA586868  Coreopsis californica var. californica D. L. Banks, Steve Boyd 1995-5-3 0287 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
  UC1007167  Corethrogyne filaginifolia Philip A. Munz 1938-8-14 15383 Riverside ridge e Toro Peak (Santa Rosa Mts.); Santa Rosa Mts. 2438 Comment
  UCSB4670  Cornus sericea DeWitt, Jack 1959-5-17 Riverside At Dark Canyon Camp grounds; near Idyllwild; San Jacinto Mtns. 1524 Comment
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Nov 5 2018
  UCR104887  Cotula australis A. C. Sanders 1997-3-19 20015 Riverside Lake Skinner area, Lower Rawson Canyon at 3-way road junction (heron rookery site) c. 1 km NE of the lake 457 Comment
  RSA757637  Crassula connata LeRoy Gross, Jackie McConnaughy, Andrew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4317 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
  RSA653675  Cressa truxillensis A. C. Sanders, K. C. Rose 1999-6-18 22820 Riverside Domenigoni Valley: upper Warm Springs Creek between Hwy 79 (Winchester Rd.) and Scott Rd., Domenigoni Ranch, S of Winchester. 433 Comment
  SD253431  Cressa truxillensis Mitch Provance 2013-6-16 613 19 Riverside Santa Ana River Valley: City of Riverside, Arlanza neighborhood, Foothill Elementary School on Wells Avenue, ca. 0.4 mile west of Van Buren. 226 Comment
  UCR126928  Cressa truxillensis Julie A. Greene 1993-5-12 1292 Riverside San Jacinto Valley, San Jacinto Wildlife Area, north side of San Jacinto River levee, west of Davis Road 433 Comment
  CLARK-A1528-4992  Crossosoma bigelovii John C. Roos 1948-4-24 3803 Riverside Whitewater 609 Comment
  NY268556  Crossosoma bigelovii T. Labouchere 1915-4-15 236 Riverside Borders of the Colorado Desert on the easterly side of San Jacinto Mountain, in the Lower Sonoran Zone. Growing in debris in Tahquitch Cañon. Comment
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Sep 3 2011
  POM300565  Crossosoma bigelovii Lyman Benson 1958-4-18 15786 Riverside Morongo Canyon 549 Comment
  LA28882  Croton californicus P. J. Remple; 1942-3-3 Riverside Garnet Springs near Palm Springs Comment
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Mar 13 2014
  SEINET3164599  Croton californicus L. S. Copel 1904-5-4 sn Riverside West Canyon, Palm Springs; Colorado Desert Comment
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Aug 3 2013
  RSA480578  Croton californicus var. californicus B. C. Templeton 1931-4-23 s.n. Riverside Gavilan Peak. 500 Comment
  SD42975  Croton setiger Ethel Bailey Higgins 1948-3-21 Riverside near Elsinore Comment
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Jul 11 2010
  POM305859  Cryptantha angustifolia Henry J. Ramsey, Henry J. Ramsey 1939-11-28 1161 Riverside 10 miles east of Indio. Comment
  RSA0040071  Cryptantha angustifolia Jim Andre 2014-1-27 26662 Riverside At mine site (and borrow pit), in canyon 1.3 mi. west of Hwy 95 (at Wilson Rd), 12.2 mi. south of Vidal Jct (at Hwy 62). 224 Comment
  RSA550282  Cryptantha angustifolia W. Wisura, John Dolan, Michael Wall 1992-3-24 4614 Riverside Lowdesert: 4.7 mi NE of Mecca on Box Canyon Rd. Comment
  SEINET3152143  Cryptantha angustifolia G. B. Grant 1906-5-1 239 -A Riverside Collected on Colorado desert at Palm Springs; Southern California Comment
  UC1212182  Cryptantha angustifolia H. E. and S. T. Parks 1940-2-20 24172 Riverside Soboba Hot Springs San Jacinto Mountains 457 Comment
  UC857309  Cryptantha angustifolia P. A. Munz, D. Keck 1922-4-8 4744 Riverside 0.5 mi e Indio -9 Comment
  POM46807  Cryptantha barbigera Mary F. Spencer 1920-3-24 1579 Riverside Crevices of rocks near Indian Wells 107 Comment
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Nov 19 2011
  RSA339323  Cryptantha barbigera R. F. Thorne, C. W. Tilforth 1980-5-28 54210 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
  RSA511314  Cryptantha barbigera A. C. Sanders 1988-5-11 7797 Riverside Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal in a wash E of the gasline road from Niland. 548 Comment
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Jun 15 2012
  RSA735219  Cryptantha barbigera Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11242 -A Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  RSA782079  Cryptantha barbigera Duncan S. Bell 2009-3-9 118 Riverside Arica Mountains: east side of mountain range, west side of Rice Valley approximately 2.7 air miles northeast of Priest Well or approximately 3.3 air miles southeast of the ghost town of Rice. 244 Comment
  SJSU125  Cryptantha barbigera C. D. Duncan 1933-3-24 Riverside Palm Springs Comment
  OBI20704  Cryptantha barbigera var. fergusoniae Robert F. Hoover 1969-4-11 11210 Riverside Mouth of Morongo Valley Cyn Comment
  POM368291  Cryptantha barbigera var. fergusoniae T. W. Minthorn 1926-5-14 s.n. Riverside Between Banning and Palm Springs. Comment
  POM368351  Cryptantha circumscissa Christopher Davidson 1973-4-19 1997 Riverside Joshua tree Natl. Monument, various sites along the road, 1-10 miles s of Joshua tree 1220 Comment
  UCR162544  Cryptantha corollata John F. Green 2005-4-29 s.n. Riverside Upper Santa Ana River Basin, eastern end of the Jurupa Mountains, Rubidoux area, immediately south of the county line, east of Armstrong Road 335 Comment
  JOTR33865  Cryptantha costata La Doux, Tasha, A. Miller and G. Clifton 2009-4-9 3057 Riverside Joshua Tree National Park. north eastern tip of Eagle Mountains; sandy fans leading to Pinto Wash 357 Comment
  UCR194828  Cryptantha decipiens var. corollata Scott D. White 2006-4-27 11286 Riverside Perris Basin/San Jacinto Mtn Foothills, Santa Rosa Hills, south of Hemet 610 Comment
  POM212930  Cryptantha holoptera F. W. Peirson 1935-4-17 11475 Riverside 30 miles north of Blythe. Comment
  POM368278  Cryptantha intermedia Christopher Davidson 1973-4-1 1812 Riverside Agua Tibia Mountains. Highway 71/79 approximately 7 miles from junction of US 395 South. 412 Comment
  POM368282  Cryptantha intermedia H. de Forest, Geo C. Johnstone 1925-4-17 s.n. Riverside Cabazon. Comment
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Mar 13 2011
  RSA702749  Cryptantha intermedia Scott D. White, Michael Honer 2004-4-6 10039 Riverside Temescal Valley, just north of the I-15 Freeway and east of Indian Truck Trail, south and west of Lee Lake. 335 Comment
  RSA778145  Cryptantha intermedia J. Andre 2011-2-2 16234 Riverside Coachella Valley; mouth of Big Morongo Wash, 1 mile east of Hwy. 62, just N of North Indian Canyon Road, west of Desert Hot Springs. 7.5 miles north of I-10 487 Comment
  SDSU21845  Cryptantha intermedia Dang Dong, Stephanie Castillo, Lindsay Rubin 2016-4-16 4 Riverside Santa Magarita Ecological Reserve, Via Tornado, south side of Santa Margarita river, going uphill, south side of road. 357 Comment
  JOTR36430  Cryptantha maritima La Doux, Tasha, M. Harding, B. Truesdell, D. Shade, E. Babich 2013-3-15 3402 Riverside Joshua Tree National Park. Southeast Coxcomb mountains; just west of bend in Hwy 177 near park boundary; desert pavements w/ braided rivulets (Stop 1) 213 Comment
  RSA777771  Cryptantha maritima Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-5 978 Riverside Road to Priest's Well, east side of Arica Mountains 488 Comment
  RSA785021  Cryptantha maritima Duncan S. Bell 2012-3-18 3192 Riverside The Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, approximately 2.8 air miles southwest of Hidden Spring. 20 Comment
  UCR276658  Cryptantha maritima Jim Andre 2015-3-6 33569 Riverside Coachella Valley, far northwest corner of valley, 0.5 mile west of Hwy 62 at mouth of Dry Morongo Wash, 0.3 mile north of (dirt) Kolbe Road 561 Comment
  RSA703365  Cryptantha maritima var. pilosa LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda Worlow 2005-2-17 1447 Riverside Chocolate-Chuckwalla Mountains region: Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  RSA733625  Cryptantha micrantha Keith E. Hoffmaster 1935-3-31 590 Riverside Palm Springs Comment
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Aug 27 2011
  UCR124634  Cryptantha micrantha var. micrantha B. C. Templeton, I. W. Clokey 1930-4-9 1073 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  UCR238126  Cryptantha micromeres Mark A. Elvin, Julie M. Vanderwier, Frank Sartuche 2002-5-16 2041 Riverside Peninsular Range; Agua Tibia Mtns., Pechanga Indian Reservation, nameless drainage/wash south of Pala Rd. 335 Comment
  RSA586298A  Cryptantha microstachys D. L. Banks, S. D. Boyd 1995-5-3 0209 A 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
  UC1114559  Cryptantha microstachys Peter H. Raven 1958-5-17 12949 Riverside 7.4 mi se Banning (on road to Idyllwild); San Jacinto Mountains Comment
  RSA0079554  Cryptantha muricata var. muricata Christopher Davidson 1975-6-16 2810 Riverside 5.4 miles N of Alandale Station on road R1 from Idyllwild to Banning. 1652 Comment
  UCR218470  Cryptantha nevadensis Jim Andre, T. La Doux 2009-3-10 11256 Riverside Joshua Tree National Park, south end of the Cottonwood Mountains near Pinkham Wash, just north of aqueduct just inside JTNP boundary, c. 7 miles west of south entrance into park at Cottonwood 542 Comment
  JOTR28811  Cryptantha pterocarya La Doux, Tasha, Bill Truesdell 2004-3-11 1079 Riverside Joshua Tree National Park. Pinto Basin; Sand Hills 530 Comment
  UCR75063  Cryptantha pterocarya var. cycloptera A. C. Sanders, E. J. Lawlor 1992-4-4 12128 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  RSA0078923  Cryptantha pterocarya var. pterocarya J. Mark Porter 2001-4-2 12332 Riverside Coachella Valley, along Big Morongo Wash, N of Indian Avenue, ca. 1.5 mi ESE jtn. with Hwy 62. 457 Comment
  RSA0079105  Cryptantha pterocarya var. pterocarya Duncan S. Bell 2010-4-2 705 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
  JOTR32918  Cryptantha racemosa Andre, Jim, Tasha La Doux 2009-2-28 10840 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; along Berdoo Canyon Rd, approx. 2.5mi north of JTNP boundary, approx. 5mi north of Dillon Rd. 744 Comment
  RSA499792  Cryptantha racemosa Albert J. Perkins 1916-4-16 s.n. Riverside Palm Springs. Comment
  RSA659692  Cryptantha racemosa J. C. Roos 1948-5-1 3815 Riverside Whitewater. 610 Comment
  RSA80751  Cryptantha racemosa F. W. Peirson 1920-2-16 4718 Riverside Foot of Alkali Canyon, southeast of Palm Canyon, Coachella Valley. Comment
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Aug 30 2011
  RSA314617  Cryptantha utahensis R. F. Thorne, Drs Fosberg, M. H. Sachet, Charles C. Herbst 1983-4-23 55468 Riverside San Bernardino Mountains: side canyon on W side of Whitewater Canyon, ca. 3.3 miles N of Whitewater post office. 595 Comment
  UCR117331  Cucurbita foetidissima Mitch Provance 1998-6-11 661 Riverside Jurupa Mountains, Pediment of the NW Jurupa Mtns., area SE of the eastern extreme of Philadelphia St. 267 Comment
  GMDRC3509  Cucurbita palmata J. Andre, T. La Doux 2008-9-16 10705 Riverside Little San Bernardino Mountains: Joshua Tree National Park: among boulders on NE end of Splitrock Picnic Area. Queen Mountain USGS 7.5 min Quad 34 deg. .534' N 116 deg. 3.098' W. Elev. 4354 ft. 1327 Comment
  POM19569  Cuscuta californica Mary F. Spencer 1923-8-4 227 Riverside Fern Valley Idyllwild, San Jacinto Mts. 1646 Comment
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Nov 26 2008
  POM48873  Cuscuta ceanothi P. A. Munz, I. M. Johnston 1924-7-26 8707 b Riverside common on north slopes, 8 mi. S of Banning. 1372 Comment
  RSA0056192  Cylindropuntia californica Marc A. Baker 2013-5-25 17746 Riverside San Gorgonio Pass, 9.5km east of Banning, 1.2km NE of Cabazon. 570 Comment
  SEINET5624441 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2011-12-19 17510 Riverside Corn Springs Wash, 830 m ENE of Aztec Spring, 12km SSE of Desert Center, north side of Chuckwalla Mountains, 84km east of Indio 497 Comment
  SEINET5624454 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2012-3-25 17525 .4 Riverside Northeast end of Chuckwalla Mountains, 11km SSE of Desert Center, 70km west of Blythe, two-track branching south from Corn Spring Road, 1.1 km W of Corn Spring Campground, 400m south of Corn Springs Wash; Pilot Mountain 1.5' USGS topographic quadrangle 527 Comment
  UCR77751  Cynara cardunculus Steve Boyd 1991-7-13 6406 Riverside Peninsular Range, Temescal Canyon, W base of Gavilan Hills, area of old glass factory between Temescal Wash & I-15, just south of Cajalco Road Comment
  CAS-BOT-BC114543  Cyperus eragrostis Crawford; Johnston 1917-6-9 1256 Riverside Santa Ana River near Corona. Comment
  UCR47859  Cyperus eragrostis S. J. Myers 1987-6-24 s.n. Riverside Peninsular Range, Murrieta Creek, at confluence with Temecula Creek, near the town of Murrieta 290 Comment
  UCR93207  Cyperus eragrostis Scott D. White 1995-8-23 3566 Riverside San Jacinto Valley, San Jacinto River, just north of City of San Jacinto boundary, c. 1 mi SE of bridge at State Street 463 Comment
  CDA2584  Cyperus involucratus A. C. Sanders, Steven R. Hill 2001-5-4 24149 Riverside Santa Ana Mountains region; West of Temecula, Santa Rosa Plateau area, Carancho Rd. at stream crossing (nameless tributary to De Luz Creek) west of Camaron Rd., east of Calle Calmar. Comment
  UCR208341  Cyperus involucratus O. F. Clarke 2004-4-14 s.n. Riverside San Bernardino Valley Region, Riverside, west side of Santa Ana River opposite the south end of Mt. Rubidoux, SE of Flabob Airport, south of bend in Crestmore Rd. and 2 mi. south of Mission Blvd., east of Co. Parks Hqtrs. 229 Comment
  CDA38903  Cyperus odoratus T. C. Fuller 1961-10-18 7161 Riverside Santa Ana River Canyon at Green River Golf Course, Highway 91. 0 Comment
  POM153370  Cyperus odoratus Phillip A. Munz, I. M. Johnston 1928-9-12 11244 Riverside North end of Lake Elsinore. Comment
  SD146115  Cyperus odoratus A. C. Sanders, Mitch Provance, et al 2000-9-27 23680 Riverside Santa Ana River Valley; southwest side of Mount Rubidoux; northwest of intersection of Tequesquite Avenue and Gregory Road; near confluence of Arroyo Tequesquite and the river . 231 Comment
  RSA559351  Cyperus squarrosus Steve Boyd, Timothy S. Ross 1992-5-15 7391 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
  UCR252700  Dalea A. C. Sanders, Kai T. Palenscar 2010-7-22 38532 Riverside Peninsular Range/San Bernardino Valley, Riverside, bank of Gage Canal where it crosses Agricultural Operations area of UCR campus, S of Martin L. King Blvd., adjacent to equip. storage area, 0.35 km SE of intersection of M.L.K. & Iowa Av. 310 Comment
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Apr 7 2015
  RSA684339  Dalea emoryi Scott D. White, Michael Honer 2003-4-18 9039 Riverside Coachella Valley. Open sand north of the I-10 Freeway at Jefferson Ave. interchange. 12 Comment
  JOTR38527  Dalea mollis Harding, Mitzi, Kipp Callahan 2012-8-27 296 Riverside Joshua Tree National Park. Pinto Basin, along southern edge of Pinto Mountains; along Old Dale Road, near Sunrise Mill Comment
  RSA781611  Dalea mollis Duncan S. Bell 2011-12-30 3037 Riverside Arica Mountains: southern section of the mountain range within the Palen/McCoy Wilderness area; approximately 2 air miles southwest of Priests Well, or approximately 7 air miles southwest of the ghost town of Rice. 365 Comment
  CDA26961  Dalea mollissima W. E. Henson 1930-3-1 3694 Riverside Chuckawalla Valley. 0 Comment
  RSA404184  Dalea mollissima P. J. Remple 1942-3-1 s.n Riverside Between Indio and Palm Springs Comment
  CAS-BOT-BC283043  Dasyochloa pulchella John Thomas Howell 1928-1-30 3310 Riverside 2 miles e. of Shaver's Well, Colorado Desert Comment
  RSA774925  Dasyochloa pulchella Duncan S. Bell 2011-4-7 2167 Riverside On the east side of the Arica mountains; approximately 2 miles northwest of Priests Well, or approximately 5.2 air miles southwest of the ghost town of Rice. 357 Comment
  RSA564025  Datisca glomerata M. A. Patten, S. J. Myers 1993-8-20 s.n. Riverside Along Tahquitz Creek and behind the debris basin dam in Palm Springs. 183 Comment
  SD11890  Datisca glomerata Victor Duran 1933-7-1 3494 Riverside Santa Rosa Mts, near Santa Rosa 1830 Comment
  UC724162  Datura discolor Aven and Ruth Nelson 1939-3-28 3299 Riverside s. Mecca (on State Hwy. 111) Comment
  UCSB37371  Datura discolor Roos, J. 1965-11-6 Riverside Colorado Desert, 26 miles west of Blythe. Comment
  RSA512137  Datura wrightii Ed LaRue 1989-4-20 s.n. Riverside Moreo Valley, old Riverside International Raceway, on Day Street, ca. 1/2 mi. S. of Hwy 60. Comment
  UC884535  Datura wrightii I. W. Clokey 1935-4-17 6876 Riverside Shafer Wells Comment
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Apr 24 2011
  HSC87025  Deinandra kelloggii L. F. LaPre 1988-6-3 Riverside Indian Trails project site, Indian Truck Trail exit on W side of Hwy. 15 in Temescal Canyon, 1/4 mi. from the freeway Comment
  SD181703  Deinandra paniculata Scott D. White 2001-6-20 8596 Riverside Just east of Goetz Road and south of Ethanac Road, ca. 1.5-2.0 miles west of I-215 Freeway. 441 Comment
  UC1930979  Deinandra paniculata T. B. Salvato, Gregg Miller 2005-6-3 1378 Riverside Peninsular Range; Perris-Aguanga Basin Region: ca 3 mi SW of Perris, 1.7 mi SW of the Goetz Road crossing of the San Jacinto River and ca 0.25 mi S of Ethanac Road Comment
  UC63231  Deinandra paniculata Jepson 1226 Riverside Box Springs 457 Comment
  RSA68780  Delphinium parishii F. W. Peirson 1928-4-24 7897 Riverside Cottonwood Springs, northern Colorado Desert Comment
  CAS-BOT-BC7988  Delphinium parishii subsp. parishii Nancy Ryan Zabriskie; Walter Zabriskie 1973-4-5 613 Riverside Near Andreas Canyon Club road above the inner gate; Palm Canyon drainage from east slope 243 Comment
  UCR213475  Delphinium parryi A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37841 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, ridge west of dirt extension of Lake St., 0.9 mi. north (358 deg. ) of intersection of I-15 and Lake St. 488 Comment
  SD144438  Delphinium parryi subsp. parryi Scott D. White 1997-5-25 5230 Riverside Bautista Canyon: Hixon Trail between trailhead at Bautista Canyon Road and intermittent stream crossing 975 Comment
  UC1126383  Dendromecon rigida A. Lewis 1934-3-4 306 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quadrangle Comment
  SD140226  Deschampsia danthonioides A. C. Sanders 1993-4-5 13696 Riverside Western edge of Hemet; along south side of Devonshire ave, between Old Warren and Warren roads; southwest of Tres Cerritos and north of Florida ave (highway 74) 459 Comment
  UCR75544  Deschampsia danthonioides A. C. Sanders 1993-5-12 14017 Riverside Hemet, W side of Warren Road, 1/2 mi south of Florida Ave (Hwy 74), b/w the New San Diego Aqueduct and Warren, directly opposite of the W end of Whittier Rd 457 Comment
  CAS-BOT-BC43356  Descurainia pinnata subsp. glabra J. H. Thomas 1949-2-28 58 Riverside Southern part of Palm Springs. Comment
  RSA329752  Dicentra chrysantha Gary D. Wallace 1966-4-16 468 Riverside Scandia Canyon betw. Murrieta and De Luz along De Luz Cr. Santa Ana Mtns. 701 Comment
  CAS-BOT-BC500849  Dichelostemma capitatum F. O. Ballou 1926-2-28 s.n. Riverside Murray Canyon Comment
  SEINET232554  Dichelostemma capitatum subsp. capitatum Sharon K. DuBois 1987-5-10 Riverside San Jacinto Mountians 1 mi up Bee Canyon off of Hwy 74 457 Comment
  CAS-BOT-BC292186  Dicoria canescens Louis C. Wheeler 1933-12-1 2287 Riverside 2 mi. E Cabezon [Cabazon], San Gorgonio Pass 640 Comment
  UC1787306  Dieteria asteroides var. asteroides A. C. Sanders, S. White, C. L. Sanders 1994-12-18 15897 Riverside San Jacinto River Valley: eastern edge of San Jacinto, Mountain Ave. at Esplanade Ave., 2.4 mi. NW of Hwy 74 on Mountain Ave. 495 Comment
  UCR19367  Digitaria ischaemum John C. Roos 1965-9-28 s.n. Riverside San Jacinto Valley, San Jacinto Comment
  UC76971  Digitaria sanguinalis F. M. Reed 1904-8-23 644 Riverside Riverside Comment
  UCR266775  Dimorphotheca sinuata Mitch Provance, Matt Amalong 2015-3-25 315- 21 Riverside Paloma Valley, Murrieta, old Clydesdale horse ranch 0.4-0.6 miles S of Keller Rd., along unmarked dirt portion of Menifee Rd. 450 Comment
  CAS-BOT-BC150878  Diplacus X australis Ynez Whilton Winblad 1941-5-27 s.n. Riverside San Juan Mts., San Juan Canyon, Highway 74 609 Comment
  CAS-BOT-BC150939  Diplacus bigelovii var. bigelovii H. Dearing; M. Dearing 1937-5-10 s 1638 Riverside Near Hayfields, Colorado Desert Comment
  CAS-BOT-BC153091  Diplacus fremontii Ynez Whilton Winblad 1941-5-27 s.n. Riverside San Juan Mts., San Juan Canyon, Highway 74 609 Comment
  UCR104602  Ditaxis californica James C. Dice, C. Barrows, K. Nicol, I. Eleck 1997-11-6 97116 - Riverside Coachella Valley, La Quinta, just west of Avenida Montezuma and Calle Nogales, E foot of Indio Mtn. 61 Comment
  RSA114357  Ditaxis lanceolata Percy C. Everett, E. K. Balls 1956-5-2 s.n. Riverside E. base, Eagle Mountains, 8 miles north of jct. with highway 60/70 on road to Eagle Mountain Pumping Station; Creosote Bush Scrub 366 Comment
  SEINET3196407 Image available Ditaxis lanceolata Teresa B. Salvato 2010-4-20 4060 Riverside Sonoran (Colorado) Desert; alluvial slope between the McCoy Mountains and McCoy Wash, c. 14 mi northwest of Blythe (McCoy Peak 7.5' Q.) 183 Comment
  UCR281016  Ditaxis lanceolata Fred M. Roberts 2016-3-5 7990 Riverside Sonoran (Colorado) Desert, Little Maria Mountains: shallow canyon at west end, 4.3 km east of Palen Pass and 2.0 km WNW Peak "602" 116 Comment
  RSA776300  Ditaxis neomexicana Duncan S. Bell, Amanda Turek 2010-4-10 824 Riverside Riverside Mountains; southern section of the mountain range; approximately 1 air mile southwest of Riverside Mountain Peak. 269 Comment
  RSA778006  Ditaxis neomexicana J. Andre 2011-2-9 15930 Riverside Mecca Hills; along Box Canyon Road at upper end of gorge, approx. 6 miles SSE of Jct. with I-10, approx. 12 miles west of Chiraco Summit 284 Comment
  UCR264215  Ditaxis neomexicana A. C. Sanders, Jim Malusa 2015-9-10 41853 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
  JEPS52448  Ditaxis serrata Marjorie D. Clary 1933-3-19 1962 Riverside Whitewater Canyon, North Colorado Desert 304 Comment
  RSA30866  Dithyrea californica I. L. Wiggins 1937-3-9 8765 Riverside Sand dunes 20 miles north of Indio. Comment
  RSA530735  Dithyrea californica George B. Grant 1906-4-8 s.n. Riverside Palm Springs. Comment
  UC1126909  Dithyrea californica H. S. Yates 1937-3-23 6406 Riverside 2 mi n Palm Springs; San Jacinto Quad. 213 Comment
  UC2015548  Dithyrea californica A. C. Sanders with G. Helmkamp, P. MacKay, et al 1995-3-19 16186 Riverside Coachella Valley, Willow Hole, 4 miles south of Desert Hot Springs. Comment
  CAS-BOT-BC412633  Dodecahema leptoceras Steve Boyd 1986-4-22 1738 Riverside Temescal Canyon: Stable alluvial benches of Indian wash just south of Interstate 15 Comment
  RSA585880  Dodecahema leptoceras D. L. Banks, Peter Morrell 1995-5-4 314 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, N of the Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, SE of the Dripping Springs Campground., On Arkose hills at the N base of the metasedimentary hills N of Wildhorse Peak. 537 Comment
  CLARK-A1528-3836  Dodecatheon clevelandii John C. Roos 1952-2-29 5370 Riverside Box Springs Mountains 457 Comment
  CLARK-A1045-179  Downingia cuspidata George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  RSA234025  Downingia cuspidata R. F. Thorne, E. W. Lathrop 1969-5-12 37933 Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California 625 Comment
  RSA524424  Draba cuneifolia Steve Boyd, Timothy S. Ross, L. Arnseth, J. Bonilla 1990-4-3 4120 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
  RSA1661  Drymocallis glandulosa Carl B. Wolf 1931-5-11 1961 Riverside Near Pipe Creek, above Hemet Valley. 1677 Comment
  JEPS47211  Drymocallis glandulosa var. viscida Carl V. Meyer June 1927 189 Riverside Saunder's Meadow Comment
  UC12541  Drymocallis glandulosa var. viscida H. M. Hall June, 1901 2039 Riverside meadows in the vicinity Strawberry Valley (Shingle Valley); San Jacinto Mountains, vicin Strawberry Valley 1341 Comment
  RSA263701  Dryopteris arguta E. W. Lathrop 1966-5-8 6470 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  SDSU14177  Dryopteris arguta Kimberly S Miller, Dr. M. G. Simpson, Derek T Miller 2002-3-17 8 Riverside Santa Margarita Ecological Reserve. Up Santa Margarita River along east side of canyon from where Tornado road crosses. Comment
  SD255020  Dryopteris arguta R. F. Thorne, E. W. Lathrop 1977-5-18 49758 Riverside Santa Ana Mountains: Bera Spring (East slope of Santiage Peak) Comment
  CAS-BOT-BC411413  Dudleya lanceolata Reid Moran 1946-5-25 2057 Riverside S slope of Box Springs Mountain 548 Comment
  SD137796  Dudleya pulverulenta subsp. pulverulenta Darin L. Banks, Steve Boyd 1995-10-17 818 Riverside Northwest Palomar Muntains; Agua Tibia Mountains; Agua Tibia Wilderness Area, along lower Arroyo Seco, south of the Dripping Springs Campgroun 525 Comment
  OBI32761  Dudleya saxosa Wendy Smith 1981-1 Riverside Comment
  RSA397828  Dudleya saxosa subsp. aloides N. R. Zabriskie, W. M. Zabriskie 1973-4-25 648 Riverside N slope Santa Rosa Mtns., Deep Canyon drainage. Lower portion of steep-walled canyon overlooking salamander oasis. 915 Comment
  UC115262  Dudleya saxosa subsp. aloides T. S. Brandegee 1902-1 Riverside near Palm Springs (Whitewater) Comment
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May 21 2013
  RSA0047811  Dysphania pumilio A. C. Sanders 2013-7-6 40841 Riverside Idyllwild, SE part of town near Saunders Meadow, west end of Tahquitz View Dr. toward Crestview Dr. 1707 Comment
  RSA0125246  Echinocereus engelmannii var. engelmannii H. G. Rush 1951-6-6 184 Riverside Big Maria Mountain Range. 35 miles north of Blythe on Highway 95. 91 Comment
  CLARK-A1528-55  Echinochloa crus-galli var. frumentacea Fred B. Essig 1966-9-12 Riverside Riverside Comment
  UCR201875  Echinochloa oryzicola Justin M. Wood 2008-9-22 157 Riverside SW Perris Basin, Temecula/Murrieta Creek, downstream of 1st Street bridge 305 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
  UCR114333  Ehrharta erecta Mitch Provance 1998-7-23 922 B Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 305 Comment
  SEINET3386355 Image available Ehrharta longiflora Thomas Jay Chester 2005-4-20 581 Riverside Peninsular Ranges; Santa Ana Mountains region; Santa Margarita Ecological Reserve: Temecula Gorge, south side 239 Comment
  UCR110455  Elatine chilensis D. E. Bramlet 1998-4-22 2605 Riverside Perris-Aguanga Basin region, French Valley area, 305m east of Washington Road and 10m north of Rawson Road, 6m west of the San Diego Canal. 447 Comment
  UCR196306  Eleocharis acicularis R. F. Thorne 1973-5-23 43850 Riverside Santa Rosa Plateau, north side of Mesa de Colorado 610 Comment
  JEPS19436  Eleocharis geniculata W. L. Jepson 1914-5-22 6043 Riverside Thousand Palms Canyon Colorado Desert Comment
  CAS-BOT-BC113328  Eleocharis montevidensis Peter H. Raven; Sidney R. Snow 1956-6-30 9537 Riverside In a dry creek bed, Dripping Springs Guard Station, Temecula River. Comment
  RSA526161  Eleocharis montevidensis Steve Boyd, Timothy S. Ross 1990-5-11 4664 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  POM313068  Eleocharis palustris Malcolm A. Nobs, S. Galen Smith 1948-9-3 502 Riverside Thermal. Comment
  UCR109648  Eleocharis parishii T. W. Fisher, R. E. Orth 1964-6-25 s.n. Riverside San Jacinto Mtns., Lake Hemet near stream 1311 Comment
  UCR241227  Eleocharis parishii Tracy Tennant, Jeffrey Ross 1998-7-11 MOR- 508 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper end of Hathaway Canyon at Burro Flat 1113 Comment
  SEINET7586940 Image available Eleocharis parishii Ivan Johnston 1917-4-4 s.n. Riverside Palm Canyon. Comment
  SD187318  Elymus condensatus Scott D. White, Angelia Carey 2004-9-16 10749 Riverside San Jacinto Mountain foorhills: Along Poppet Creek northeast of San Jacinto River. 561 Comment
  UCR274299  Elymus condensatus T. B. Salvato, Melissa Clemons 2005-6-6 1411 Riverside Peninsular Range, Gavilan Hills, c. 0.75 mile south-southeast of Steele Peak, 0.6 mile E of Hammack Ranch, and 5 miles north-northeast of Lake Elsinore 579 Comment
  UCR90379  Elymus condensatus D. L. Banks, Steve Boyd 1995-10-17 0779 Riverside NW Palomar Mtns; Agua Tibia Mtns., Cleveland National Forest, Agua Tibia Wilderness Area; along lower Arroyo Seco, south of the Dripping Springs Campground. Along alluvial benches where Arroyo Seco turns to the E, just west of the Metasedimentary hills 525 Comment
  UCR17527  Elymus elymoides Frank C. Vasek 1979-7-26 790726- 02 b Riverside Santa Rosa Mtns, Vicinity of Virgin Spring and Stump Spring 2348 Comment
  POM47449  Elymus glaucus subsp. glaucus Mary F. Spencer 1919-6-27 1231 Riverside Idyllwild, San Jacinto Mountains. 1616 Comment
  UCR192701  Elymus hispidus Naomi Fraga, V. Arvizu, Elizabeth Kempton, T. Thibault 2006-6-7 1692 Riverside San Jacinto Mountains, east of Fobes Ranch Road, just south of Fobes Ranch 1585 Comment
  UCR193906  Elymus hispidus A. C. Sanders, Mitch Provance 2008-7-11 35746 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
  RSA444571  Emmenanthe penduliflora Walter Wisura 1988-3-23 4215 Riverside In wash along trai aproaching 49 palms oasis, Joshua Tree National Comment
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Sep 7 2013
  RSA774722  Emmenanthe penduliflora Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4500 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 610 Comment
  SFV5025  Emmenanthe penduliflora F. M. Ball 1964-1-4 s. n. Riverside Colorado Desert Wide bench on right side of Rt. 74 to Hemet, about 7 miles south of Palm Desert. 335 Comment
  UC1537546  Emmenanthe penduliflora Gordon H. True Jr. 1935-3-11 65 Riverside Box Springs; Sycamore Canyon 365 Comment
  UCR122750  Emmenanthe penduliflora George K. Helmkamp, E. A. Helmkamp 1998-4-24 3384 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UCR133664  Emmenanthe penduliflora Chet McGaugh 2003-5-10 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  UCR176189  Emmenanthe penduliflora Amber Bruno 2005-4-14 12 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 488 Comment
  UCR279563  Emmenanthe penduliflora A. C. Sanders, Jim Malusa 2017-3-29 43167 Riverside Sonoran (Colorado) Desert, Orocopia Mountains, Canyon Spring wash just above confluence with Salt Creek 338 Comment
  SBBG35073  Emmenanthe penduliflora var. penduliflora T. L. Secrest 1948-4-7 Riverside above Whitewater 304 Comment
  JOTR31161  Encelia actoni La Doux, Tasha 2009-6-3 1868 Riverside Joshua Tree National Park. (Stop 5): Little San Bernardino Mountains, Covington Flats Area, lower slopes, just above parking area for lower Covington Flats 1460 Comment
  UCR60931  Encelia actoni Steve Boyd, T. S. Ross, L. Arnseth 1989-6-11 3723 Riverside Peninsular Range, Vail Lake area, recently burned hills SE of lake, south of Hwy 79 488 Comment
  SEINET11859827  Encelia californica H. M. Hall 1902-1 2922 Riverside vicinity of Riverside 366 Comment
  CAS-BOT-BC131350  Encelia farinosa Marcus E. Jones 1924-2-7 s.n. Riverside Salton Sink near Oasis Comment
  HSC84149  Encelia farinosa H. A. Heaton 1987-3-5 17 Riverside San Jacinto Mtns., 0.9 mi. up Bee Canyon from Hwy. 74 503 Comment
  RSA644109  Encelia farinosa Scott D. White 1995-3-30 2682 Riverside Moreno Valley; base of Badlands slopes, N of Highland Blvd. and W of Theodore St. 579 Comment
  UC1777705  Encelia farinosa Donald W. Kyhos 1965-3-13 65 -111 Riverside near Blythe (6.2 miles west of junction of Hwy 78 and Hwy 60-70) Comment
  UCD20082  Encelia farinosa Donald W. Kyhos 1965-5-11 65 -216 Riverside 14.9 miles north of junction of Hwy 95 and Hwy 60-70, on Hwy 95. Comment
  UCR138831  Encelia farinosa D. L. Banks 1997-4-5 1669 Riverside Agua Tibia Mtns., NW Palomar Mtns: Pechanga Indian Reservation. south of Dorland Mountain, just west of the Wilderness Area Boundary, along a tributary of the N fork of Pechanga Creek 640 Comment
  POM4935  Encelia farinosa var. farinosa L. T. Street, M. Durant 1918-5-12 s.n. Riverside Box Springs. Comment
  SEINET7845949 Image available Encelia frutescens H. M. Hall 5859 Riverside Colorado Desert, near Canon Springs Comment
  JOTR34055  Encelia virginensis La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2954 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; loamy-gravel, steep, southeast facing slopes above Lost Horse Mine Trail Comment
  CAS-BOT-BC126750  Ephedra R. F. Thorne; M. Z. Thorne 1973-3-30 42689 Riverside Colorado Desert; Little San Bernardino Mountains region: Morongo Valley Canyon: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, outwash of Mission Creek 488 Comment
  RSA336056  Ephedra aspera Robert F. Thorne, Avi Shmida, Robert Whittaker 1978-4-23 52061 Riverside Palms to Pines Highway: Along highway, Santa Rosa Mountains. Comment
  RSA799082  Ephedra aspera Sarah J. De Groot, Jessica Chu, Loraine Washburn 2013-3-22 6879 Riverside South side of Joshua Tree National Park, Cottonwood Spring 915 Comment
  UCR38700  Ephedra californica J. M. Stewart 1985-4-28 8516 Riverside Western Colorado Desert, Coachella Valley, along the north side of Hwy I-10, 1 mi west of Indian Ave. 244 Comment
  UCD84925  Ephedra trifurca Chuck Hughes 2010-3-21 198 a Riverside About 2.3 miles south of Highway 62, next to railroad tracks. 225 Comment
  POM179210  Ephedra trifurca Philip A. Munz 1941-4-5 16693 Riverside Sand dunes southeast of Iron Mts. Comment
  UC1280921  Ephedra viridis H. E. McMinn 1937-5-3 4490 Riverside approaching Cottonwood Mountain from Pinto Basin Comment
  RSA674655  Epilobium brachycarpum Scott D. White 2000-8-22 8121 Riverside Gibbel Flat in the Santa Rosa Hills. 610 Comment
  SD262323  Epilobium campestre Mitch Provance, John Hazlett, Matt K. Beyers, Jeremiah George 2017-5-23 517 28 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 (Romoland 7.5'Q) 430 Comment
  UCR266604  Epilobium campestre Mitch Provance 2011-6-6 17003 Riverside Edgemont area of Moreno Valley, from the northbound I-215 onramp at Allesandro Blvd., east to Old 215 Frontage Rd. 466 Comment
  UCR193858  Epilobium canum A. C. Sanders, Mitch Provance 2008-7-11 35823 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station 1475 Comment
  CAS-BOT-BC171736  Epilobium canum subsp. latifolium Adele O. Merritt 1925-11-1 s.n. Riverside Palm Springs Comment
  CAS-BOT-BC171748  Epilobium canum subsp. latifolium Lester Rowntree 1937-11-3 s.n. Riverside Desert Center Indio Highway Comment
  RSA144639  Epilobium canum subsp. latifolium William M. Klein, S. Tillett 1958-10-8 890 Riverside Dark Canyon Camp Ground, North Fork of the San Jacinto River, San Jacinto Mountains. Comment
  RSA649939  Epilobium canum subsp. latifolium J. Sanders 1967-11-5 83 Riverside Found off R1 by Pine Flats a little ways South of the U.S. Agriculture Station. 1524 Comment
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Aug 16 2015
  UCR5604  Epilobium canum subsp. latifolium Frank C. Vasek 1966-9-5 660905- 03 Riverside San Jacinto Mtns., 1 mile north of Mountain Center toward Idyllwild 1445 Comment
  RSA740837  Epilobium densiflorum Scott D. White, Justin M. Wood 2008-7-8 12399 Riverside San Jacinto Mountains: Johnson Meadow. 1439 Comment
  RSA588578  Epilobium glaberrimum subsp. fastigiatum Anstruther Davidson 1892-7-4 s.n. Riverside San Jacinto. Comment
  RSA557313  Epilobium pygmaeum Julie Greene, Steve D. Boyd, Dave Bramlett, Hilda Flores, Helga Ochoterana 1993-7-9 1413 Riverside San Jacinto Wildlife Area: from the edge of drying flood area. 433 Comment
  RSA92723  Epilobium pygmaeum J. C. Roos 1952-5-14 5662 Riverside Edgemont, near Box Springs. 488 Comment
  CLARK-A1528-3378  Epipactis gigantea John C. Roos 1948-5-29 3870 Riverside Whitewater Canyon Comment
  SEINET7048051  Epipactis gigantea Steven R. Hill 2001-4-29 33526 Riverside Whitewater Canyon, along Whitewater River, east side of canyon, east of Whitewater Canyon Road, about 2 miles north of Route I-10. Elevation about 1800 feet. Comment
  RSA0037243  Equisetum funstonii Keith E. Hoffmaster 1934-4-22 s.n. Riverside Santa Ana Mts. Comment
  POM11158  Equisetum laevigatum Philip A. Munz 1922-6-23 5770 Riverside Keen Camp, San Jacinto Mountains 1524 Comment
  RSA650202  Equisetum laevigatum R. Garner 1974-7-15 s.n. Riverside San Jacinto Mts. Comment
  SEINET3866231 Image available Equisetum laevigatum Steve Boyd, Timothy S. Ross 1990-5-11 4641 Riverside Vail Lake area, Arroyo Seco drainage, cyn bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland Nat. Forest.; 0 579 Comment
  UCR88235  Eragrostis Karen Kirtland 1992-5-25 s.n. Riverside San Jacinto River between Nuevo Road and San Jacinto Avenue. 427 Comment
  RSA450449  Eragrostis cilianensis J. C. Roos 1965-7-7 s.n. Riverside San Jacinto. Comment
  RSA605215  Eragrostis lehmanniana A. C. Sanders, G. Helmkamp, P. J. MacKay 1995-3-12 16023 Riverside Indio, just SW of the Whitewater River Channel at Auto Center Dr. (Hwy 111)., 33 deg 43.3'N, 116 deg 12.3'W -8 Comment
  UCSB51400  Eragrostis mexicana Roos, John 1965-7-7 Riverside San Jacinto Comment
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Mar 10 2013
  RSA652888  Eragrostis minor John Wallace 1991-5-8 17 Riverside Colorado River; Approximately 3 miles south of Lost Lake Resort. Comment
  RSA432673  Eremalche exilis Christopher Davidson 1973-4-19 1984 Riverside Joshua Tree Natl. Monument, ca 4 mi. E of Split Rock, ca 1.5 mi S of park entrance. 1220 Comment
  UC68598  Eremalche exilis H. M. Hall Apr. 1905 5928 Riverside McCoy Wash Colorado Desert, McCoy Wash 91 Comment
  RSA172245  Eremalche rotundifolia Robert F. Thorne 1963-3-29 32399 Riverside Ca. 7-8 miles E of Mecca, Mecca Hills. 152 Comment
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Dec 11 2011
  RSA512164  Eremocarpus setiger 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
  SD258452  Eremothera refracta J. M. Andre 2013-3-4 23863 Riverside Sandy bluffs overlooking Colorado River, 0.2 mile E of Hwy 95, just S of Riverside Mountains, just N of Queen Sable Point. (Big Maria Mtns NE 7.5'Q) 96 Comment
  UC901712  Eriastrum eremicum subsp. eremicum Alice Eastwood 1913-4-30 2984 Riverside Palm Springs Comment
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Aug 27 2011
  OBI11567  Eriastrum eremicum subsp. eremicum R. F. Hoover 1969-4-14 11229 Riverside Palm Springs, Just south of south city limit Comment
  RSA594049  Eriastrum filifolium D. L. Banks, Elizabeth Hedge Banks 1996-5-2 0921 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve, approximately 20 m inside the preserve boundary gate, 3 m E of the main road along a open field. 448 Comment
  JEPS69113  Eriastrum sapphirinum W. L. Jepson 1901-5-31 1574 Riverside Temescal Wash 335 Comment
  UC718494  Eriastrum sapphirinum P. C. Everett 1935-6-17 7166 Riverside trail to Santiago Peak 2 mi above Glen Ivy Resort; Santa Ana Mts., Coldwater Can. 609 Comment
  UCR129892  Eriastrum sapphirinum subsp. dasyanthum N. C. Cooper 1944-5-20 1297 Riverside San Gorgonio Pass, Banning 701 Comment
  RSA0121582  Eriastrum sapphirinum subsp. dasyanthum Percy C. Everett 1935-6-17 7166 Riverside Santa Ana Mts., Coldwater Canyon trail to Santiago Pk., 2 mi. above Glen Ivy Resort. 610 Comment
  UCR204183  Eriastrum sapphirinum subsp. sapphirinum LeRoy Gross, Duncan Bell 2008-9-16 3581 Riverside Peninsular Range; San Jacinto Mountains, west side of Garner Valley, near Hwy 74, c. 0.25 mi north from Ramona trailhead parking area 1365 Comment
  RSA0122972  Eriastrum sapphirinum subsp. sapphirinum Richard Noyes, L. Arnseth 1988-9-10 734 Riverside San Jacinto Mountains. South Ridge of Tahquitz Peak. 200 meters below trailhead along road. 2012 Comment
  JOTR32192  Ericameria cooperi var. cooperi Herskovits, Tasya, M. Harding 2011-5-20 s.n. Riverside Joshua Tree National Park. Little San Bernardino Mountains; Ryan Mountain; Rocky slopes bordering Ryan Mountain Trail (Stop 2) 1524 Comment
  POM310588  Ericameria linearifolia G. Mansfield, Jones 1956-05 s.n. Riverside Joshua Tree National Monument on road to Juniper Flats. 1463 Comment
  UCR181166  Ericameria linearifolia R. E. Riefner Jr. 2006-3-4 06- 48 Riverside Peninsular Range; San Jacinto Mtns, near Anza, c. 1.5 mi. west from Pine Meadow on Hwy 74 and 1.5 mi. NW from Hamilton Creek 1320 Comment
  CAS-BOT-BC298872  Ericameria nauseosa var. bernardina Winifern W. Swarth 1914-9-10 s.n. Riverside Tahquitz Valley, San Jacinto Mts 2438 Comment
  JEPS30388  Ericameria nauseosa var. bernardina William M. Klein 1960-8-22 1587 Riverside n of Idyllwild (along trail to Suicide Rock); San Jacinto Mts., Mt. San Jacinto, Suicide Rock Comment
  CDA32894  Ericameria palmeri Mike Lahti 2009-10-13 PDR# 1501838 Riverside Hemet. Found off Deportola Road. 0 Comment
  UCR120174  Ericameria palmeri var. pachylepis Mitch Provance 1998-3-6 140 Riverside Jurupa Mountains, Glen Avon Hts., Boulder Park, 0.7 km west of Pyrite St.on the north side of Granite Hill Dr. 305 Comment
  UCR141252  Ericameria palmeri var. pachylepis A. C. Sanders, Kelly Volansky 2004-10-6 28818 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
  SBBG62800  Ericameria paniculata R. H. Nordhoff 1940-11-10 612 Riverside near Thousand Palms Cyn Comment
  UCD131744  Erigeron breweri var. covillei K. Esau 1935-6-15 s.n. Riverside Hemet Valley. Comment
  SD187344  Erigeron canadensis Scott D. White, Angelia Carey 2004-9-16 10757 Riverside San Jacinto Mountain foothills: Indian Creek watershed, above confluence with San Jacinto River. 579 Comment
  UCR106353  Erigeron divergens John Wear, N. Moorhatch 1996-9-19 s.n. Riverside Peninsular Range; San Jacinto Mtns., upper end of Garner Valley 1433 Comment
  POM12780  Erigeron foliosus P. A. Munz 1922-6-23 5785 Riverside Hemet Valley, San Jacinto Mountains, [on Garner Ranch - 5784] 1372 Comment
  JEPS41521  Erigeron foliosus var. foliosus W. L. Jepson 1914-5-25 6078 Riverside San Timoteo Canyon Comment
  UCR117617  Erigeron foliosus var. foliosus Scott D. White 1997-5-25 5248 B Riverside Peninsular Range; Perris Basin, Winchester Area: Hills south of Patton Ave. and west of Winchester Road, c. 2 air mi SW of the junction of Winchester Road and Simpson Avenue 549 Comment
  UCR170021  Eriochloa contracta O. F. Clarke 2003-9-1 s.n. Riverside Peninsular Range, Riverside, UCR Botanical Garden, along wheelchair trail NW of rose garden 351 Comment
  CAS-BOT-BC189123  Eriodictyon crassifolium var. crassifolium H. M. Hall 1897-5-19 561 Riverside Hemet Comment
  UC1979591  Eriodictyon crassifolium var. crassifolium D. L Banks, Steve Boyd 1995-3-30 0127 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., W of the Dripping Springs Alcove, on the Woodchuck Trail. Comment
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Nov 18 2015
  HSC93339  Eriodictyon crassifolium var. nigrescens Scott D. White 1996-4-14 3903 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
  RSA455092  Eriodictyon trichocalyx H. de Forest, Jack Rempel 1934-4-14 14 Riverside San Gorgonio Pass. 602 Comment
  SBBG15884  Eriodictyon trichocalyx C. Walker 1954-4-10 Riverside arroyo in White Water Cyn Comment
  RSA792160  Eriogonum A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-25 35621 Riverside May Valley c. 1.0 mi. WSW of Fleming Ranch 1585 Comment
  JOTR32456  Eriogonum angulosum La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2603 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam loop trail, near trailhead; Sandy wash and open flats among boulder outcrops (Stop 2) 1298 Comment
  JOTR34095  Eriogonum angulosum Herskovits, Tasya 2011-9-28 1 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Keys View; Burn area on gentle rocky slopes 1582 Comment
  UC6234  Eriogonum apiculatum H. M. Hall 1901-6 2364 Riverside Tauquitz Valley San Jacinto Mountains, Tauquitz Valley 2438 Comment
  CAS-BOT-BC242846  Eriogonum davidsonii Ynez Whilton Winblad 1937-4-23 s.n. Riverside Palms to Pines Highway, Mt. San Jacinto Comment
  RSA393470  Eriogonum davidsonii Louis C. Wheeler 1931-10-2 178 Riverside Hemet-Idyllwild Road, San Jacinto Mountains 1372 Comment
  SD60831  Eriogonum davidsonii Peter H. Raven 1956-6-30 9544 Riverside Deserty flats 1.7 miles west of Dripping Springs Guard Station on road to Temecula Comment
  UC534910  Eriogonum davidsonii Susan G. Stokes 1933-7-1 106 Riverside near Idyllwild; San Jacinto Mts. Comment
  UCSB25721  Eriogonum davidsonii Gliessman, Stephen 1968-7-17 Riverside along Little Thomas Mountain Road, 2.9 miles southwest of junction with Highway 74, Little Thomas Mountain. 1554 Comment
  CLARK-A1528-3733  Eriogonum elongatum John C. Roos 1975-12-6 Riverside 1219 Comment
  POM13305  Eriogonum elongatum E. C. Jaeger 1069 Riverside Cabazon. Comment
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Mar 13 2011
  SEINET5440853 Image available Eriogonum fasciculatum Richard Carter 1984-12-18 3857 Riverside 13.8 mi SW of Anza city center on Hwy 371. Comment
  UC849410  Eriogonum fasciculatum var. flavoviride Carl B. Wolf 1932-10-12 4293 Riverside Pinyon Well Colorado Desert, Litle San Bernardino Mts. 1219 Comment
  SEINET3087509 Image available Eriogonum fasciculatum var. foliolosum M. M. Thompson 1947-6-9 C 2073 Riverside Los Alamos Canyon, Elsinore. 762 Comment
  CAS-BOT-BC250128  Eriogonum fasciculatum var. polifolium R. J. Barr 1964-11-29 64 -594 Riverside 10 miles West of Banning 762 Comment
  RSA648261  Eriogonum fasciculatum var. polifolium Margaret Murphy 1983-5-15 0022 -C Riverside located in the north section of parsel 475-090-006, lot 20 Moreno Acres of the unincorporated area known as Sunnymead. Comment
  UCR91275  Eriogonum fasciculatum var. polifolium Scott D. White 1995-4-5 2707 Riverside Moreno Valley, Base of slope in 'Badlands', off [Moreno-Redlands] Blvd 640 Comment
  SEINET11937962  Eriogonum fasciculatum var. polifolium M. T. Doutt 1931-1 773 Riverside Chino Canyon, Palm Springs Comment
  UC56798  Eriogonum gracile E. A. Zumbo Oct, 1902 364 Riverside Riverside Comment
  UCR21987  Eriogonum gracile var. gracile Steve Boyd 1980-7-20 338 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  RSA289829  Eriogonum gracile var. incultum Barry A. Prigge 1980-8-25 4021 Riverside San Gorgonio Pass: 1 mi. SE of Fingal siding, S Pacific RR. 445 Comment
  RSA701167  Eriogonum inflatum Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11230 Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  CAS-BOT-BC270592  Eriogonum molestum H. M. Hall 1901-7-1 2386 Riverside San Jacinto Mountains 1615 Comment
  JEPS56702  Eriogonum molestum W. L. Jepson 1903-8-6 2281 Riverside Chalk Hill San Jacinto Mt. (trip to Spruce Canyon) 1524 Comment
  POM49276  Eriogonum molestum Mary F. Spencer 1919-7-1 1375 Riverside Idyllwild. 1616 Comment
  UCR195139  Eriogonum nudum subsp. pauciflorum A. C. Sanders, Tim Thomas 2008-8-1 35934 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1448 Comment
  CAS-BOT-BC269781  Eriogonum nudum var. pauciflorum F. Grinnell Jr. 1908-7-1 s.n. Riverside Tahquitz Valley 2438 Comment
  LA206955  Eriogonum nudum var. pauciflorum Elizabeth McClintock; 1938-9-1 sn Riverside San Jacinto Mountains, trail to Round Valley from Hidden Lake Comment
  LA206959  Eriogonum nudum var. pauciflorum W. Pequegnat; 1937-9-3 129 Riverside Santa Ana Mountains, Bedford Rd 1645 Comment
  UC849804  Eriogonum nudum var. pauciflorum I. W. Clokey, E. G. Anderson 1935-8-21 6590 Riverside Keen Camp P.O. 1425 Comment
  SEINET5330942  Eriogonum nudum var. pubiflorum I. W. Clokey, E. G. Anderson 1935-8-21 6590 Riverside Keene Camp P.O., Hillside 1425 Comment
  RSA126710  Eriogonum parishii Peter H. Raven, R. Snow 1957-7-26 s.n. Riverside 0.8 mile below junction to Dark Canyon Camp. Comment
  JEPS56485  Eriogonum pusillum Marjorie D. Clary 1932-5-25 1036 Riverside between Indio and, Berdoo Canyon Pinyon Well; Colorado Desert, San Bernardino Mts., Berdoo Canyon 914 Comment
  JOTR30654  Eriogonum pusillum Andre, Jim, Tasha La Doux 2008-3-21 8838 Riverside Joshua Tree National Park. Lower Wilson Wash along NE side of paved road 852 Comment
  POM310394  Eriogonum pusillum Margaret Hardinge 1946-4-29 267 Riverside Along road to 29 Palms just before getting into Morongo Valley- to the south. 396 Comment
  RSA342543  Eriogonum pusillum Robert F. Thorne, W. A. Tilforth, L. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54087 Riverside San Bernardino Mountains: Flood plain (wash) along Whitewater River, ca. 3.0 miles N of Whitewater Post Office. 591 Comment
  RSA799084  Eriogonum pusillum Sarah J. De Groot, Jessica Chu, Loraine Washburn 2013-3-22 6881 Riverside South side of Joshua Tree National Park, Cottonwood Spring 905 Comment
  JOTR31060  Eriogonum saxatile La Doux, Tasha, Maria Harding, Mark Wheeler 2010-5-20 2043 Riverside Joshua Tree National Park. Little San Bernardino Mountains, above Lower Covington Flats; STOP 2: steep rocky canyon heading up to west side of Quail Mountain region Comment
  POM293157  Eriogonum saxatile Lyman Benson 1946-4-15 12041 Riverside Canyon on Twenty-nine Palms Road from Whitewater. 457 Comment
  UC218027  Eriogonum saxatile P. A. Munz and I. M. Johnston 1922-5-7 5284 Riverside Dry Morongo Wash Little San Bernardino Mountains 457 Comment
  RSA698449  Eriogonum thomasii Mary Edmunds 1932-3-24 s.n. Riverside McIntyre Ranch Oasis: Coachella Valley. Comment
Read comments
Jun 15 2012
  UCR233170A  Eriogonum thomasii Jim Andre, Glenn L. Clifton 2011-2-22 17441 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  POM47237  Eriogonum thurberi Mary F. Spencer 1920-3-28 s.n. Riverside Palm Springs. 122 Comment
  UCD101296  Eriogonum thurberi Steve Boyd; Tim Ross, Laurel Arnseth 1989-6-10 3681 Riverside Vail Lake area, benches of Arroyo Seco and slopes of adjacent sedimentary hills to E. 487 Comment
  CAS-BOT-BC268190  Eriogonum umbellatum var. munzii James L. Reveal; Caroline G. Reveal 1972-8-9 2859 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
  LA207120  Eriogonum wrightii var. membranaceum C. M. Dammers; 1933-10-25 sn Riverside The Gavilan, Gavilan Hills Comment
  RSA0029410  Eriogonum wrightii var. membranaceum John F. Emmel 1995-9-24 1391 Riverside Santa Rosa Mts: open area on flat ridge top 0.9-1.0 air mi ESE of Toro Peak. 2287 Comment
  POM54680  Eriophyllum confertiflorum L. R. Abrams 1901-5-20 15713 Riverside Elsinore. Comment
  UCR127553  Eriophyllum confertiflorum A. C. Sanders, T. B. Salvato 2003-5-21 26799 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
  UCR155326  Eriophyllum confertiflorum A. C. Sanders, Mike Misenhelter 2005-3-23 29258 Riverside Santa Ana Mtns., Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  UCR265827  Eriophyllum confertiflorum Mitch Provance 2012-5-24 512- 08 B 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
  RSA628478  Eriophyllum wallacei A. C. Sanders 1994-5-29 14579 Riverside East Branch Millard Canyon, along Forest Service Road 4S45. 1200 Comment
  UCR103993  Eriophyllum wallacei George K. Helmkamp 1998-4-3 3078 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Snow Creek area north of Mt. San Jacinto; at edge of stream south of Snow Creek Rd at a point 1.4 mi. south of Calif. Hwy 111 396 Comment
  SBBG120008  Erodium brachycarpum A. C. Sanders with M. Misenhelter 2005-3-23 29247 Riverside E slope of Squaw Mtn, Avenida Escala just above Avenida Caleta, N of Tenaja Rd; Santa Rosa Plateau 701 Comment
  RSA198940  Erodium brachycarpum Robert F. Thorne, E. W. Lathrop, Ora M. Clark, S. Carlquist 1968-4-18 37435 Riverside Santa Rose Plateau: Mesa de Colorado, Rancho California. 671 Comment
  RSA703473  Erodium cicutarium LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda Lee Worlow 2005-2-17 1418 Riverside Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  RSA0077524  Erysimum asperum G. Wallace 1964-4-26 s.n. Riverside San Jacinto Mountains. Comment
  CAS-BOT-BC54339  Erysimum capitatum Roxana S. Ferris; Ruth P. Rossbach 1938-5-20 9659 Riverside 6 miles form Pinon Flat Public Camp on road to Hemet on State Highway #74. Comment
  SD218387  Erythranthe diffusa P. A. Munz, I. M. Johnston 1922-5-20 5467 Riverside Kenworthy, San Jacinto Mountains. 1463 Comment
  RSA0015878  Erythranthe moschata E. C. Jaeger 1921-6-21 s.n. Riverside Idyllwild. 1585 Comment
  UCR281222  Eschscholzia caespitosa Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-4-18 417- 47 Riverside Perris-Aguanga Basin, Menifee, Bundy Canyon Rd., NE intersection with Sunset Ave. 534 Comment
  HSC16762  Eschscholzia californica C. L. Hitchcock, C. V. Muhlick 1964-3-17 23096 Riverside 3 mi. SE of Glen Ivy Hot Springs. Comment
  UCR172715  Eschscholzia californica Jun Hu 2000-5-11 22 Riverside San Jacinto Valley, SE of city of Winchester, Hills N of Diamond Valley 488 Comment
  HSC49187  Eschscholzia minutiflora D. L. Goforth 1979-4-11 114 Riverside Box Canyon, 10 mi. E of Mecca on State Rte. 195. 220 Comment
  UCR60443  Eschscholzia minutiflora R. F. Thorne, M. Z. Thorne 1973-3-30 42660 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
  CAS-BOT-BC5931  Eschscholzia minutiflora var. parishii Samuel Bonsal Parish; William Fletcher Parish 1882-4-1 759 Riverside Eastern slope of San Bernardino Mt., Whitewater. Comment
  UCD96516  Eschscholzia papastillii Shannon M. Still; Robert Lee 2009-3-3 456 Riverside California. Riverside County: Joshua Tree National Park. 634 Comment
  CAS-BOT-BC419629  Eschscholzia parishii Annie M. Alexander; Louise Kellogg 1941-5-14 2169 Riverside 5 mi. So. Cottonwood Spring 502 Comment
  JOTR28954  Eschscholzia parishii La Doux, Tasha 2005-3-30 1190 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  UC635608  Eschscholzia parishii H. L. Mason 1928-3-10 4244 a Riverside road from Indio to Palm Springs Comment
  UCSB3661  Eschscholzia parishii Ray, Peter 1949-3-12 Riverside North side of Coachella Valley; 2 miles west of Whitewater 457 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
  SEINET3840909  Eucalyptus cadens Unknown 1992-3-14 12061 Riverside University of California Moreno Valley Field Station, Mareno Valley, Paul Moore's experimental woodlots; eastern of the two lots, near the intersection of Oliver Street and Kennedy Drive, seventeenth tree from north in ninth row from the east, Quadrangle: Sunnymead 7.5 476 Comment
  SD247455  Eucalyptus tereticornis A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-3 41560 Riverside Peninsular Range Eastern Foot of the Santa Ana Mountains: Temescal Canyon NW of Horsetheif Canyon Road along DePalma Road, SE of Glen Eden Road and south of the east end of Lee (Corona) Lake, south side of I-15 (Alberhill 7.5'Q) 370 Comment
  RSA271438  Eucrypta chrysanthemifolia C. W. Tilforth 1978-4-30 1570 Riverside Low rounded hills east of Norco. Comment
  SD136824  Eucrypta chrysanthemifolia Steve Boyd 1992-4-14 6829 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western flank of Bluewater Canyon along Bluewater Trail. 341 Comment
  UCR174244  Euphorbia albomarginata A. C. Sanders, T. B. Salvato 2006-6-2 33074 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 579 Comment
  RSA615334  Euphorbia eriantha George K. Helmkamp 1998-2-18 2691 Riverside Sonoran (Colorado) Desert Midland Road., 3.8 mi. SE of Midland, Little Maria Mtns. 198 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
  POM96853  Euphorbia misera M. French Gilman 1926-5-9 A- 14 Riverside Whitewater Grade Comment
  UCR5988  Euphorbia palmeri Karen Cook 1966-5-12 s.n. Riverside San Jacinto Mtns, across the street from entrance to San Jacinto Wilderness State Park, on roadside, in Idyllwild. 1809 Comment
  UCR103273  Euphorbia polycarpa B. G. Pitzer, O. F. Clarke, S. Reed, G. Ruiz 1998-3-7 3575 Riverside San Bernardino Mountains, Wildlands Conservancy's Mission Creek Preserve, c. 2 mi. up canyon from entrance at ranch gate, on Mission Creek Road, off of Calif. Hwy 62 762 Comment
  UCR104010  Euphorbia polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-5 2675 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR213543  Euphorbia polycarpa A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37828 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, ridge west of dirt extension of Lake St., 0.9 mi. north (358 deg. ) of intersection of I-15 and Lake St. 488 Comment
  SEINET10739816  Euphorbia polycarpa Lewis S. Rose 1935-12-19 Rose 35663 Riverside Colorado Desert, Palm Springs, CA. 133 Comment
  UCR277705  Euphorbia serpens Mitch Provance 2012-11-3 1112- 04 Riverside San Timoteo Canyon, West Beaumont, N side of Oak Valley Parkway (San Timoteo Canyon Rd.), 1.5 miles W of I-10. 709 Comment
  SD255147  Euphorbia serpillifolia Duncan S. Bell 2015-9-30 8661 Riverside Santa Rosa Mountains; collecting in the summit area of Asbestos Mountain. 1573 Comment
  CLARK-A1528-441  Euphorbia serpyllifolia C. M. Flanagan 1973-6-13 OO 717 Riverside Morongo Indian Reservation 1127 Comment
  UC1922388  Euphorbia setiloba Michael Honer with L. Hulse 2004-4-3 1910 Riverside Colorado Desert; Little San Bernardino Mountains Region: Rockhouse Canyon, approx. 2 mi N of intersection with Fargo Canyon. Comment
  RSA604410  Eustoma exaltatum Louis C. Wheeler 1932-9-4 1338 Riverside Santa Ana River at Chino Creek 183 Comment
  RSA0112089  Fagonia laevis Duncan S. Bell 2010-2-21 548 Riverside Arica Mountains; Palen/McCoy Wilderness area; collecting in the central part of range. 418 Comment
  RSA550346  Fagonia laevis Walter Wisura, John Dolan, M. Wall 1992-3-24 4642 Riverside Lowdesert: 5.6mi S of I-10 on rd to Corn Spring. Comment
  RSA651719  Fagonia laevis Viki Cruz 1983-5-8 19 Riverside one mile into Magnesia Canyon, Santa Rosa Mts. Comment
  RSA663918  Fagonia laevis C. R. Annable 1995-3-15 2279 Riverside 2.7km SW of Valerie on road to Martinez Canyon. Comment
  RSA801970  Fagonia laevis W. Marquart 1938-3-12 s.n. Riverside Mule Mtns south of Chuckwalla range. CD3. Comment
  SBBG3963  Fagonia laevis H. and M. Dearing 1936-12-25 966 Riverside 10 mi N of Indio on Aqueduct Rd [Long Cyn] Comment
  SEINET3071532 Image available Fagonia laevis Andrew C. Sanders, L. Lubinsky, A. Knapp, P. J. MacKay & C. L. Sanders 1995-1 15922 Riverside Sonoran (Colorado) Desert; Coachella Valley, mouth of Fargo Canyon, Little San Bernardino Mtns., 1.2 mi. above junction with Aqueduct Road. 370 Comment
  UC1541420  Fagonia laevis H. E. Parks, M. Jordan 1940-2-16 24165 Riverside Santa Rosa Canyon, at mouth; Santa Rosa Canyon 304 Comment
  UCR226728  Fagonia laevis Jim Andre 2011-2-9 15910 Riverside Sonoran (Colorado) Desert, Mecca Hills, along Box Canyon Road at upper end of gorge, c. 6 mi south southeast of the junction with Hwy I-10, c. 12 mi west of Chiriaco Summit 284 Comment
  UCR52013  Fagonia laevis Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, et al. 1988-3-10 2203 Riverside Sonoran (Colorado) Desert, NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  UCR85152  Ferocactus cylindraceus A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16092 Riverside Coachella Valley/Santa Rosa Mtns., alluvial slopes at the foot of Rabbit Peak, below Sheep Canyon 12 Comment
  UCR20860  Festuca microstachys var. microstachys A. C. Sanders 1978-6-11 886 Riverside San Jacinto Mtns., James Reserve, above Lake Fulmor 1646 Comment
  UCR2410  Festuca myuros F. M. Reed 1906-3-7 897 Riverside Riverside. Hydrant [at] corner of Streight (?) and Hooker Ranches, Victoria Heights Comment
  UCR42391  Festuca myuros D. C. Hawks 1986-4-16 s.n. Riverside San Bernardino Mtns / Sonoran (Colorado) Desert, Alta Mesa wind turbine field, on the ridge above Whitewater Canyon, west of Bonnie Bell 915 Comment
  RSA0121055  Festuca octoflora Duncan S. Bell, LeRoy Gross 2016-3-29 9117 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 5 air miles southeast of the summit of Martinez Mountain. 686 Comment
  UCR108880  Festuca octoflora Heidi A. Haid 1968-5-19 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR267284  Ficus microcarpa R. E. Riefner Jr. 2015-8-8 15- 217 Riverside City of Corona, Corona City Park, east side of Rimpau Ave. on north side of 6th St. 211 Comment
  UCR174131  Filago arizonica A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32611 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 579 Comment
  UCR48391  Filago arizonica Steve Boyd 1986-5-1 1789 Riverside Perris-Aguanga Basin region, southwestern Perris Basin, hill west of Skunk Hollow, Skunk Hollow vernal pool 488 Comment
  RSA339317  Filago californica R. F. Thorne, C. W. Tilforth 1980-5-28 54200 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
  RSA777285  Filago californica Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4991 -a 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
  UCR166300  Filago depressa A. C. Sanders, K. C. Rose, D. Woodard 1995-3-15 16143 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, along Whitewater River wash between Windy Point and Hwy I-10, Coachella Valley 396 Comment
  UCR18116  Filago depressa A. C. Sanders 1978-4-2 116 Riverside Sonoran (Colorado) Desert, Living Desert Reserve in Palm Desert [mouth of Deep Canyon] 152 Comment
  RSA575828  Filago gallica Steve Boyd 1981-5-15 s.n. Riverside Gavilan Hills region, Temescal Canyon at the confluence of 'Estelle Creek' and Temescal Creek, just northwest of the entrenched meander of Temescal Creek at the western Base of Estelle Mountain 317 Comment
  JEPS45782  Fouquieria splendens subsp. splendens W. L. Jepson 1912-10-30 5251 Riverside Black Point; Riverside Mts. 45 Comment
  JEPS46442  Fouquieria splendens subsp. splendens W. L. Jepson 1912-10-30 5251 Riverside Black Point, Blythe intake Comment
Read comments
Jun 8 2012
  JOTR16706  Fouquieria splendens subsp. splendens Cole, James E. 1941-5-21 762 Riverside Joshua Tree National Park. WEST END OF PINTO BASIN 487 Comment
  RSA0018946  Fragaria vesca Philip A. Munz 1922-6-27 5855 Riverside Santa Rosa, Santa Rosa Mts. 1982 Comment
  UCR116947  Frankenia salina A. C. Sanders, D. Malueg 2001-5-17 24356 Riverside Perris-Aguanga Basin, Gasline right of way across Pinto and Hoopes Ranches, east of Briggs Road at and near Warm Springs Creek, south of Scott Rd. 415 Comment
  UCR133662  Frankenia salina Chet McGaugh 2003-5-10 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  UCR252994  Fraxinus uhdei Fred T. Sproul, Julia Groebner 2014-7-21 6007 Riverside Santa Ana River at Norco 169 Comment
  RSA736789  Fraxinus velutina Scott D. White, Angelia Carey 2004-7-2 10598 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. 549 Comment
  UCR240766  Fumaria officinalis O. F. Clarke 2004-3-13 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  SEINET10851908  Funastrum hirtellum Edward Palmer 1876-1 Palmer 441 Riverside Colorado River Valley Comment
  RSA740617  Gaillardia aristata Scott D. White, Justin M. Wood 2008-6-19 12253 Riverside San Jacinto Mountains: USFS Rd (5S08) between Keen Camp Summit and Baldy Mtn. 1524 Comment
  RSA740938  Galium andrewsii subsp. andrewsii Scott D. White, Justin M. Wood 2008-7-9 12440 Riverside K Flat, from large pond downstream to meadow. 1427 Comment
  UCR132704  Galium angustifolium A. C. Sanders, T. B. Salvato 2004-2-16 27391 Riverside Santa Ana Mtns., foothills at edge of Temescal Valley, summit of ridge proposed for removal at development called 'Trilogy at Glen Ivy,' south of Brown Canyon 451 Comment
  JEPS7848  Galium angustifolium subsp. angustifolium W. L. Jepson May 17 1901-Jun 1 1901 1225 Riverside Riverside Comment
  SDSU14282  Galium angustifolium subsp. angustifolium Ryan Jacobson, Jeremy Mass 2000-4-19 7 Riverside Santa Margarita Ecological Reserve. Near banks west bank of Stone Creek, about 1 mile north east of south-side facility. 177 Comment
  UC28166  Galium angustifolium subsp. angustifolium Geo. F. Reinhardt June 1897 Riverside San Jacinto Valley Comment
  JOTR29205  Galium angustifolium subsp. gracillimum La Doux, Tasha 2005-8-8 1524 Riverside Joshua Tree National Park. Little San Bernardino Mtns; Eureka Peak 1676 Comment
  UCR123869  Galium angustifolium subsp. gracillimum Steven R. Hill 2001-5-3 33675 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
  RSA716392  Galium aparine Scott D. White, Angelia Carey 2004-4-5 9983 Riverside San Jacinto Mtn. Foothills: North of Valle Vista. Indian Creek Watershed. 518 Comment
  RSA741168  Galium aparine Scott D. White, Justin M. Wood 2008-5-15 12004 Riverside San Jacinto Mountains: Johnson Meadow. 1415 Comment
  RSA180289  Galium porrigens E. W. Lathrop 1965-4-25 5673 Riverside 4 miles southwest of Murrieta on the De Luz Road. Comment
  SD186324  Galium porrigens Andy C. Sanders, Mike Misenhelter 2005-3-23 29266 Riverside Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  UC1979634  Galium porrigens var. porrigens D. L Banks, Steve Boyd 1995-3-15 0077 Riverside NW Palomar Mtns., Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., Dorland Mtn. area. Comment
  RSA776349  Galium stellatum var. eremicum Duncan S. Bell 2010-3-20 619 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  RSA125363  Garrya veatchii R. Weatherby 1950-3-5 1053 Riverside Road between Anza and Hemet Comment
  UC1930170  Gastridium phleoides Scott D. White, Michael Honer 2003-6-3 9463 Riverside Santa Ana Mountains: Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. Comment
  RSA179500  Gastridium phleoides E. W. Lathrop 1960-6-7 4898 Riverside 14 miles west of Murrieta Comment
  RSA0112043  Gaura A. C. Sanders, John F. Green 2012-5-27 40205 Riverside Peninsular Range; Perris-Aguanga Basin Region: San Jacinto River north of Canyon Lake, between Hwy 74 and Goetz Rd. 428 Comment
  UCR199714  Gaura sinuata Scott D. White, Justin Wood 2008-6-26 12292 Riverside Perris Basin, I-215 freeway just north of San Jacinto River crossing 431 Comment
  SEINET10969634  Gayophytum nuttallii David B. Dunn 1946-8-18 Dunn 2750 Riverside Wellman. Sieniga springs on trail. Peek. San jacinto mts. Comment
  POM305627  Geraea canescens Henry J. Ramsey, Henry J. Ramsey 1937-3-2 872 Riverside Desert center, Mojave Desert Comment
  RSA774898  Geraea canescens Duncan S. Bell, Amber Swanson 2011-2-18 2029 Riverside Coachella Valley area; Edom Hill; along Edom Hill Road near dump; 0.6 road miles from junction of Varner Road and Edom Hill Road. 259 Comment
  SBBG29379  Geraea canescens D. Myrick 1968-3-5 1814 Riverside Country Club Rd, E of Palm Desert 60 Comment
  SEINET4344937 Image available Geraea canescens Orr Michael 2013-1 Riverside Palen/McCoy Wilderness area, off Midland rd, about 3 mi S of Rice Comment
  UCR154400  Gilia A. C. Sanders, K. C. Rose, D. Woodard 1995-3-22 16214 Riverside San Jacinto Mountains, San Gorgonio Pass: on and near a rocky spur at the N foot of the mountains, SW of Verbenia Ave, west of Snow Creek, east of Cabazon 550 Comment
  RSA470131  Gilia angelensis Mark Morris 1929-3-17 s.n. Riverside Palm Canyon. Comment
  RSA688862  Gilia angelensis Scott D. White, Michael Honer 2003-5-13 9240 Riverside Whitewater Canyon Road, 0.4 of a mile from the junction with Interstate 10. Whitewater Canyon washWhitewater Canyon, ca. 2 miles north of Bonnie Bell. 579 Comment
  UCR155833  Gilia angelensis John F. Green 2005-5-4 s.n. Riverside Perris-Aguanga Region, SE corner Markham St. and Day St., Mead Valley area, 2-3 mi SW of March Air Reserve Base 534 Comment
  UCR213469  Gilia angelensis A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37835 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, ridge west of dirt extension of Lake St., 0.9 mi. north (358 deg. ) of intersection of I-15 and Lake St. 488 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
  RSA526176  Gilia capitata subsp. abrotanifolia Steve Boyd, T. S. Ross 1990-5-11 4678 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  RSA543745  Gilia capitata subsp. abrotanifolia Steve Boyd, T. S. Ross, Mike Hammitt 1991-5-2 6049 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
  RSA771114  Gilia capitata subsp. abrotanifolia Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4929 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 1-2 miles above Whitewater Visitor Center (Whitewater Trout Farm)., Between N34.01961, W116.68175 and N34.01041 and W116.67141. 850 Comment
  UC1494264  Gilia filiformis J. C. Roos 1958-3-15 Riverside 3 mi se Desert Center (Chuckwalla Mtns.); , se of Desert Center Comment
  RSA0014599  Gilia latifolia Justin M. Wood, J. Miner 2010-4-30 1552 Riverside Coachella Valley: Thousand Palms, just E of intersection of Ramon Rd. and Vista de Oro, just NE of Edison substation. 61 Comment
  RSA792626  Gilia maculata R. F. Thorne 1995-3-29 63026 Riverside White Water Canyon. 600 Comment
  CAS-BOT-BC407803  Gilia ochroleuca subsp. exilis Steve Boyd; Tim Ross; Laurel Arnseth; Jaime Bonilla 1990-4-2 4016 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Sta. 609 Comment
  UC879805  Gilia ochroleuca subsp. exilis K. Watkins and E. McClintock 1937-4-9 Riverside pasture 1 mi w San Jacinto; w of San Jacinto Comment
  RSA0017098  Gilia ochroleuca subsp. exilis N. C. Cooper 1944-6-17 1397 Riverside San Jacinto Mts., Pine Cove. 1524 Comment
  RSA0017274  Gilia ochroleuca subsp. exilis Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4563 Riverside Vail Lake area, rolling terrain at jct of hwy R3 and Powerline Rd. NE of the lake. Comment
  RSA0054864  Gilia peduncularis Keith E. Hoffmaster 1937-6-6 771 Riverside San Jacinto Mts. Comment
  RSA67695  Gilia sinuata Verne Grant, Alva Grant 1952-4-1 17522 Riverside Near White Tank at summit of pass between Little San Bernardino Mountains and Pinto Mountains Comment
  RSA550351  Gilia stellata W. Wisura, John Dolan, Michael Wall 1992-3-24 4637 Riverside 15.4 miles NE of Mecca, Bajadas above Box Canyon Comment
  RSA749186  Gilia stellata R. F. Thorne, W. Wisura, Avi Shmida, R. Whittaker 1978-4-23 52018 Riverside Chino Canyon. Comment
  SEINET3004968  Gilia stellata G. Rink 2011-3-24 10392 Riverside Sandy wash north of Blythe, east of the McCoy Mtns 109 Comment
  UC908831  Gilia stellata Annie M. Alexander and Louise Kellogg 1941-5-14 2170 Riverside 2.5 mi s Cottonwood Spring (Eagle Mountains); Colorado Desert, , s of Cottonwood Spring 838 Comment
  UCD117897  Gilia stellata Raymond A. Evans 1949-11-10 s.n. Riverside Canyon west of White Water Canyon, north of Palm Springs. Comment
  UCR167824  Glinus lotoides T. B. Salvato, Melissa Clemons 2005-6-2 1398 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
  UCD66770  Glyceria declinata A. C. Sanders; S. Hawkins 1996-4-24 18088 Riverside San Bernardino Mtns: Morongo Indian Reservation. At SE edge of Burro Flats. 1097 Comment
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May 5 2012
  RSA562490  Gnaphalium californicum Steve Boyd, Tim Ross 1992-5-5 7246 Riverside Southern Santa Ana mountains, San Mateo Canyon Wilderness Area. Isolated grassland area south Oak Flats, southwest of the Bluewater Trail 732 Comment
  UCR146470  Gnaphalium californicum Orlando Mistretta 1992-6-10 518 Riverside Peninsular Ranges; Santa Ana Mtns region, Cleveland National Forest: Along old road coming off 3504 west of Sierra Peak. Head of road. Comment
  UCR113868  Gnaphalium canescens Mitch Provance 1999-1-1 1040 Riverside City of Riverside, Granitic knoll c. 0.1 miles SW of Victoria Hill (pk 1005), west of the corner of Ivy St. and Victoria Ave. 311 Comment
  UCR100214  Gnaphalium canescens subsp. beneolens Scott D. White 1992-12-16 979 Riverside Vail Lake area, c. 9 air mi east of Aguanga (junction of Hwys 371 & 79) & 3 air mi north of Beauty Mtn Peak. 1372 Comment
  RSA160475  Gnaphalium luteoalbum J. D. Olmsted 1959-4-17 405 Riverside Main Knobcone pine grove around edges, NE ridge from Sugarloaf Peak, along Main Divide TT 1/2 mile E of turn off the Radar Station, Santa Ana Mtns 1159 Comment
  POM12962  Gnaphalium palustre P. A. Munz, I. M. Johnston 1922-5-19 5371 Riverside Menifee Valley. 412 Comment
  RSA0105081  Gnaphalium palustre Daphne K. Christopher, Hannah Stevens 2003-4-4 86 Riverside UC Riverside, Motte Rimrock Reserve. Off Sage Rd. 530 Comment
  RSA643676  Gnaphalium palustre A. C. Sanders, J. C. Lyman 1995-4-16 16567 Riverside Glen Avon: sand dune area on the N slope of the Jurupa Hills (draining toward Fontana), Pyrite St. Canyon. 335 Comment
  SD197684  Gnaphalium palustre T. B. Salvato, A. C. Sanders 2005-5-17 920 Riverside San Jacinto Mountain foothills: San Jacinto River E of Valle Vista, just downstream from the Forest Service boundary and north of California Highway 74. 548 Comment
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Jul 11 2010
  RSA585510  Gnaphalium stramineum D. L. Banks, S. D. Boyd 1995-5-9 0371 Riverside NW Palomar Mountains; Agua Tibia Mountains; N of the Cleveland National Forest and the Agua Tibia Wilderness Area; N slope of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area, W of Woodchuck Campground. 732 Comment
  POM182084  Guillenia lasiophylla P. A. Munz 1932-3-14 11980 Riverside Colorado Desert, Coachella Valley, Deep Canyon 91 Comment
  POM48137  Guillenia lasiophylla E. Schlinger 1920-05 s.n. Riverside Canyon Coachella, Colorado Desert Comment
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Nov 19 2011
  UCR141254  Haplopappus venetus A. C. Sanders, Kelly Volansky 2004-10-6 28820 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
  UCR34963  Haplopappus venetus subsp. vernonioides L. B. Ziegler 1966-10-16 103 Riverside San Jacinto Valley/San Jacinto Mtns. Foothills, Soboba Indian Reservation 503 Comment
  SEINET3242788 Image available Harpagonella palmeri Steve Boyd 1986-1 1384 Riverside Temescal Canyon: Alberhill Mtn., south slope of mtn., just east of claymine area. 427 Comment
  UCR102841  Harpagonella palmeri A. C. Sanders 1997-4-3 20172 Riverside Lake Skinner area, N edge of large clay patch adjacent to the E side of the Skinner entrance road, c. 1-2 km NE of Borel Road. 473 Comment
  UCR48477  Harpagonella palmeri Steve Boyd 1986-4-10 1644 Riverside Peninsular Range, Gavilan Hills region, Temescal Canyon: Along DePalma Road between Indian Truck Trail & Horsethief Canyon, 1.0 mi east of the Indian Truck Trail exit of Hwy I-15. 381 Comment
  UCR58852  Harpagonella palmeri Steve Boyd, T. S. Ross, L. Arnseth 1989-4-2 3206 Riverside Peninsular Range, Vail Lake area, W end of bench on S flank of Oak Mtn. 549 Comment
  RSA793030  Hedypnois cretica Justin M. Wood 2011-4-4 3392 Riverside San Bernardino Mountains Foothills: San Gorgonio River wash, off of Bluff Street, just east of Banning Bench. 881 Comment
  CLARK-A1528-1169  Helianthemum scoparium John C. Roos 1947-5-24 3642 Riverside San Jacinto Mountains 1158 Comment
  RSA0012940  Helianthus californicus I. W. Clokey, E. G. Anderson 1935-8-21 6934 Riverside North fork, San Jacinto River. 1500 Comment
  CAS-BOT-BC305708  Helianthus gracilentus P. C. Everett; E. K. Balls; L. W. Lenz 1952-7-1 17268 Riverside 3.7 mi. s.e. of Banning along hwy to Idyllwild, San Jacinto Mts. 914 Comment
  SDSU12916  Helianthus gracilentus Jutta Buschbom 1991-6-20 18 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
  SEINET3147439  Helianthus gracilentus J. L. Strother 1970-7-7 994 Riverside Just S of Alberhill Comment
  RSA650770  Helianthus gracilentus C. J. Humphrey 1936-6-7 446 Riverside [Unspecified] Comment
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Dec 15 2011
  UC1532826  Heliotropium curassavicum Robert F. Thorne, C. W. Tilforth, L. DeBuhr and E. Lathrop 1975-8-29 47310 Riverside Santa Rosa Plateau, Mesa de Burro, Rancho California 609 Comment
  RSA544427  Heliotropium curassavicum var. oculatum Steve Boyd, Timothy S. Ross, D. Zippin, T. Oberbauer 1991-6-14 6332 Riverside Skunk Hollow Area, 2 miles E of Murrieta Hot Springs, just W of Second San Diego Aqueduct. Comment
  UCR3298  Hemizonia kelloggii T. R. Plumb 1964-4-9 s.n. Riverside Box Springs Mtns, Box Springs Mt., 1 mi SE of Dog Lady's house [old house near crest of range, c. 33 deg. 58' 53'N, 117 deg. 17' 28'W, along road from Pigeon Pass; later park ranger's house] on S fork of road 762 Comment
  RSA716381  Hemizonia mohavensis Scott D. White 2006-4-27 11300 Riverside Perris Basin/San Jacinto Mtn Foothills: Santa Rosa Hills, S. of Hemet. 549 Comment
  UCR100377  Hemizonia paniculata A. C. Sanders, T. Tennant, A. Montalvo & B. Wagner 1997-11-20 21612 Riverside Lake Skinner Reserve area, Diamond Valley, canyon along Rawson Road going into hills toward Crown Valley 518 Comment
  UCR105991  Hemizonia paniculata D. L. Banks 1997-6-16 2061 Riverside NW Palomar Mtns., Agua Tibia Mtns: Pechanga Indian Reservation. On the south side of Pechanga Rd., c. 20 m west of the old schoolhouse 378 Comment
  UCR139645  Hemizonia paniculata A. C. Sanders 2004-6-30 28388 B Riverside Perris-Aguanga Surface/Menifee Valley Region, Paloma Valley, large rocky hill (1762 ft.) 1 mi. east of Murrieta Rd. and 1 mi. north of Bundy Canyon Rd., c. 5 miles due south of Sun City 518 Comment
  UCR161282  Hemizonia paniculata Chet McGaugh 2005-9-27 s.n. Riverside Santa Ana River Valley, Rubidoux, Riverview Drive and Avenue Juan Diaz, west of the Rubidoux Nature Center and c. 0.25 mi N of the Santa Ana River 220 Comment
  RSA700937  Hemizonia pungens subsp. laevis Michael Wall 1996-7-6 146 Riverside San Jacinto Valley, W side of Ramona Expressway in swale beginning 0.4 mi SE of Sanderson continuing for >0.5 mi. 488 Comment
  UCR199712  Hemizonia pungens subsp. pungens Scott D. White, Justin Wood 2008-6-26 12295 Riverside Perris Basin, Hwy I-215 at stream crossing, just west of golf course and just north of Newport Road 434 Comment
  UCR231753  Herniaria hirsuta subsp. cinerea John F. Green 2008-4-21 02- 07 Riverside Peninsular Range, south edge of Perris, drainage way between housing tracts, west of Goetz Rd. and east of Alabaster Loop 450 Comment
  UCR112130  Hesperocnide tenella A. C. Sanders, B. Pitzer, T. B. Salvato 1998-4-26 21756 Riverside Box Springs Mtns., Highgrove, Pigeon Pass Canyon just below the county dump 366 Comment
  RSA586247  Heterocodon rariflorum D. L. Banks 1995-4-11 0166 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 Dripping Springs Trail. 963 Comment
  CAS-BOT-BC318910  Heterotheca grandiflora Otto T. Solbrig 1958-8-18 2757 Riverside Junction of Highway 71 and 395 on road to Palomar Comment
  SD122196  Heterotheca grandiflora James C. Dice, J. DeWald 1987-9-28 729 Riverside North side of Temecula Gorge, near entrance to field station site, ca. 4.5 km east-northeast of Gavilan Mountain. Occasional weed in disturbed roadside habitats. (IPB 1/07) 330 Comment
  RSA1640436A  Heterotheca sessiliflora subsp. fastigiata J. D. Olmsted 1959-8-18 801 Riverside May Valley Truck trail at crest W of S ridge of Tahquitz Peak, SE of Desert Sun School, Idyllwild, alt 5800ft. San Jacinto Mts, 1768 Comment
  RSA450413  Heterotheca sessiliflora var. sanjacintensis J. C. Roos 1965-8-18 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  UCR23812  Heterotheca subaxillaris John C. Roos 1965-9-26 s.n. Riverside Sonoran (Colorado) Desert, 2 mi south of Jackson St., Indio Comment
  SBBG104702  Hibiscus denudatus T. Glenn 1991-5-2 91 -22 Riverside McCoy Mtns NW of Blythe 350 Comment
  UCR124099  Hilaria rigida Steven R. Hill 2001-5-3 33679 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
  CLARK-A1528-475  Hoffmannseggia densiflora Charlotte Stocks 1962-5-11 Riverside Coachella Comment
  CAS-BOT-BC206107  Hoffmannseggia microphylla Marcus E. Jones 1906-4-27 s.n. Riverside Indio Comment
  CAS-BOT-BC207555  Hoffmannseggia microphylla Mrs. John C. Augsbury 1930-2-1 s.n. Riverside Indio Comment
  LA28883  Hoffmannseggia microphylla P. J. Remple; 1942-3-2 ** Riverside near Palms to Pines Highway Comment
  LA45786  Hoffmannseggia microphylla E. M. Hyde; 1935-3-17 sn Riverside Palms to Pines Highway 182 Comment
  SEINET5554663  Hoffmannseggia microphylla R. H. Peebles, H. F. Loomis 1930-1 190 Riverside Near Shavers Well. Comment
  SJSU5169  Hoffmannseggia microphylla L. M. Stotelmyre 1970-3-25 70 Riverside 8 km E of Indio Comment
  UCSB33254  Hoffmannseggia microphylla Miller, Brian 1963-6-1 Riverside Powerline Access Road, 1/2 mile SW of Biskra Palms 24 Comment
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Jun 1 2013
  CAS-BOT-BC207569  Hoffmannseggia microphylla John Thomas Howell 1928-3-25 3543 Riverside Painted Canyon [Canon] Comment
  UCD63683  Holodiscus discolor var. microphyllus D. Sanchez-Mata; Richard Halsey 2006-6-28 s.n. Riverside Corona. Cleveland National Forest. Santa Ana Mountains. Indian Truck Trail from Corona. 1110 Comment
  RSA740790  Hordeum brachyantherum subsp. californicum Scott D. White, Justin M. Wood 2008-7-9 12418 Riverside Johnson Meadow 1415 Comment
  RSA617999  Hordeum depressum R. E. Riefner 1998-4-22 98 -289 Riverside Elsinore Trough between Willard and Murrieta Creek. Lake Elsinore. Comment
  SEINET244670 Image available Hordeum depressum A. C. Sanders, D. Malueg 2001-5-17 24358 Riverside Perris-Aguanga Basin Region: gasline right of way across Pinto and Hoopes Ranches, east of Briggs Road at and near Warm Springs Creek, S of Scott Rd. 415 Comment
  RSA608532  Hordeum intercedens D. E. Bramlet 1996-4-11 2449 Riverside San Jacinto Wildlife Area, approx. 762 m NE of Lakeview. The site is found 122 m E of Davis Road and 40 m N of marvin Road., 37 44 856mN X 4 88 940mE 434 Comment
  SEINET3258004 Image available Hordeum intercedens A. C. Sanders 2008-4-15 34886 Riverside Peninsular Range; NE edge of city of Elsinore, off Nichols Rd. along Baker St., near Durant Siding. 383 Comment
  UCR228831  Hordeum intercedens A. C. Sanders, T. B. Salvato 2011-4-4 38974 Riverside Peninsular Range, Warm Springs Valley, 0.4 mi. WNW (276 deg. ) of intersection of Collier Ave. & Riverside Dr./Hwy 74, NE of Baker St. 387 Comment
  UCSB45608  Hordeum intercedens Roos, John 1952-4-23 Riverside 1 mile southeast of Perris 426 Comment
  RSA571293  Hordeum murinum subsp. leporinum Steve Boyd, Darin Banks 1994-4-5 8273 Riverside San Mateo Canyon Wilderness Area of the Cleveland National Forest, in the vicinity of Oak Flats east of Verdugo Potreto, along the Lucas Canyon Trail. 732 Comment
  RSA594520  Hordeum murinum subsp. leporinum D. L. Banks, Rashmi Pant 1996-5-13 1025 Riverside NW Palomar Mountains; Agua Tibia Mountains; Hwy. 79, E of the Dripping Springs Campground.; Approximately 1.9 km E of the Dripping Springs Guard Station;, (100 m E of where Hwy. 79 leaves the Forest Service Boundary). On the S side of Hwy. 79. T8S R1W; Just N of the NE 1/4, NW 1/4 of sec. 23. 487 Comment
  LA47894  Hosackia crassifolia var. crassifolia Carl Epling; William Robison 1935-6-30 sn Riverside north fork San Jacinto River Comment
  RSA102349  Hulsea vestita subsp. callicarpha S. B. Parish, W. F. Parish 1880-07 531 Riverside San Jacinto Mt. Comment
  UC520000  Hydrocotyle umbellata Joseph Andorfer Ewan 1932-7-9 7494 Riverside Santa Ana R. at Rincon (Prado); Santa Ana R., Rincon (Prado) Comment
  RSA696758  Hymenoclea salsola J. R. Bruff 1928-4-2 94 Riverside Canyon wash 1 mile west of Morengo. Comment
  CAS-BOT-BC312628  Hymenopappus filifolius var. lugens H. M. Hall 1899-5-25 11781 Riverside Western borders of the Colorado Desert. Coyote Canyon 1524 Comment
  UCR98678  Hypochaeris glabra S. J. Myers 1995-6-9 s.n. Riverside Peninsular Range, Lake Elsinore, 0.5 mi south of intersection of Grand Ave. and Ortega Hwy (State Hwy 74) 457 Comment
  RSA608060  Hyptis emoryi Louis C. Wheeler 1931-2-7 s.n. Riverside Palm Springs. Comment
  UC1541662  Hyptis emoryi H. E. and S. T. Parks 1940-2-12 24170 Riverside Mouth of Santa Rosa Canyon 304 Comment
  UCR102719  Hyptis emoryi B. G. Pitzer 1998-1-24 3405 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
  SEINET13948478 Image available Hyptis emoryi Carl B. Wolf 1932-1 2984 Riverside Colorado Desert. 8 mi E of Mecca on Blythe Road. Ca 300 ft alt 91 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
  CAS-BOT-BC311606  Isocoma acradenia var. eremophila W. R. Dudley 1903-12-26 s.n. Riverside Palm Canon [Canyon] Comment
  SBBG29422  Isocoma acradenia var. eremophila D. Myrick 1968-3-4 1804 a Riverside Desert Hot Springs 304 Comment
  UC64818  Isocoma acradenia var. eremophila E. E. Schellenger 1904-10-16 58 Riverside between Indio and Wolters [Walters=Mecca] Comment
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Jun 18 2011
  UCR181607  Isocoma menziesii var. menziesii Mitch Provance 2004-5-1 7602 Riverside Granitic Knolls of Riverside, Riverside, W side of Versity Hill (Coyote Hill), south side of the UCR campus 396 Comment
  RSA702552  Isocoma menziesii var. vernonioides Scott D. White, B. Leatherman 2004-10-7 10772 Riverside Perris Basin: City of Perris. Immediately east of the I-215 Freeway, at Watson Road. 434 Comment
  UC1950034  Isoetes howellii R. F. Thorne, E. W. Lathrop, S. Bickstrom-Sternberg, B. Martin May 1982 55204 Riverside Peninsular Ranges; Santa Ana Mountains region: SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta near S. edge of plateau, approached from De Luz road. Comment
  UCR96807  Isomeris arborea Bern Schwenn 1994-4-1 s.n. Riverside Sonoran (Colorado) Desert, Eagle Mountains, Hayfield Spring on the south side of the range. 700 Comment
  RSA0039455  Iva axillaris A. C. Sanders, Timothy W. Chumley 2013-4-1 40724 Riverside Hwy 74 at Collier, large vacant parcel at SE corner of intersection, NE edge of Lake Elsinore, between Riverside Dr. (Hwy 74) and Enterprise Way 385 Comment
  RSA544400  Iva axillaris subsp. robustior Steve Boyd, Tim Ross 1991-6-14 6368 Riverside Warm Springs Creek at NE end of Hogbacks ridge from Alamos Rd. S to confluence w/ Adobe Springs tributary, 2-3 miles NW of Murrieta Hot Springs. Comment
  SEINET8518930  Johnstonella angustifolia K. L. Chambers, H. L. Chambers 2004-4-6 6387 Riverside Plain just S of S border of Joshua Tree National Park, Cottonwood Springs Road, 0.25 mile N of Hwy [Interstate] 10, 22 miles E of Indio. Comment
  CAS-BOT-BC110069  Juncus acutus Annie M. Alexander; Louise Kellogg 1941-5-26 2241 Riverside Colorado Desert. Monsen Canyon, Eagle Mountains. 914 Comment
  RSA612958  Juncus bufonius var. occidentalis Darin L. Banks 1997-3-29 1627 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
  UC1601743  Juncus effusus subsp. austrocalifornicus H. M. Hall Jul 1901 2390 Riverside vicinity Strawberry Valley; San Jacinto Mountains 1645 Comment
  UCD141501  Juncus effusus subsp. austrocalifornicus Louis C. Wheeler 1931-10-3 189 Riverside Strawberry Valley, San Jacinto Mountains. 1584 Comment
  SD122852  Juncus macrophyllus Steve Boyd 1985-7-23 1020 Riverside DeLuz Road, 8 miles west of Rancho California, side canyon of Sandia Creek, in wet sand along stream. 305 Comment
  POM259179  Juncus mexicanus Phillip A. Munz 1938-8-13 15325 Riverside Cedar Spring, north base of Santa Rosa Peak. 2287 Comment
  RSA0125122  Juncus rugulosus Duncan S. Bell 2016-10-27 10211 Riverside Whitewater Canyon area; collecting in Rainbow Canyon, 2.75 air miles northwest of the Whitewater Ranger Station (trout ponds). 1024 Comment
  RSA741267  Juncus rugulosus Scott D. White, Justin M. Wood 2008-7-10 12452 Riverside Fobes Spring 1500 Comment
  RSA770887  Juncus rugulosus Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4590 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR113735  Juncus rugulosus Mitch Provance 2000-6-24 2071 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  POM229010  Juncus xiphioides Phillip A. Munz 1937-5-30 15130 Riverside Dos Palmos Spring, north end of Santa Rosa Mountains. 1098 Comment
  RSA190344  Juncus xiphioides Phillip A. Munz, L. F. Street 1919-5-7 2777 Riverside Tahquitz Canyon 244 Comment
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Feb 13 2010
  RSA519236  Juncus xiphioides Ed LaRue 1989-4-26 s.n. Riverside 2 miles (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouth of Rice Canyon. 488 Comment
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Mar 24 2007
  SBBG104053  Juncus xiphioides A. C. Sanders with O. F. Clarke 1991-6-10 11136 Riverside Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River; Riverside 238 Comment
  UCR201869  Juncus xiphioides Justin M. Wood 2008-9-30 179 Riverside SW Perris Basin, Temecula/Murrieta Creek, downstream of 1st Street bridge 305 Comment
  CLARK-A1528-2669  Juniperus californica John C. Roos 1952-4-16 5541 Riverside Box Springs 457 Comment
  JOTR31176  Juniperus californica La Doux, Tasha, G. Clifton 2009-5-14 1974 Riverside Joshua Tree National Park. (Stop 1)Little San Bernardino Mountains, Upper Covington Flats, west of trail head 1474 Comment
  CAS-BOT-BC234586  Justicia californica B. Trowbridge 1979-4-17 6099 Riverside Lower Cottonwood Springs Wash, north of Interstate 10 457 Comment
  UC218037  Justicia californica P. A. Munz and D. Keck Apr 9 1922-Apr 12 1922 4902 Riverside vicinity of Corn Springs Colorado Desert, Chuckwalla Mts., Corn Springs 762 Comment
  UC888135  Justicia californica Lewis S. Rose 1938-12-18 38325 Riverside Palm Springs 137 Comment
  RSA0027471  Kallstroemia californica Deidre Conocchioli, Billy Sale, Naomi S. Fraga 2013-9-25 55 Riverside East of Alligator Rock: From I-10 at Desert Center, head south on CA-177 to BLM Rd 394 (dirt). Collection site is 1.1 miles SW of interstate exit ramp. 334 Comment
  SEINET8071637 Image available Kallstroemia californica Andrew C. Sanders, T. B. Salvato 2012-10-12 40416 Riverside Sonoran (Colorado) Desert; Chuckwalla Valley, along Chuckwalla Valley Rd., 0.35 mi. west of I-10 junction 114 Comment
  RSA248369  Keckiella antirrhinoides I. W. Clokey, E. G. Anderson 1936-4-16 6885 Riverside Brushy hillside along San Jacinto River, east of Hemet. 600 Comment
  UCSB6150  Keckiella antirrhinoides Mazzia, Linda 1960-5-14 Riverside off Hwy 70 and 99; about 2.2 mi so of Banning; in San Jacinto Mts 914 Comment
  CAS-BOT-BC236711  Keckiella antirrhinoides subsp. antirrhinoides H. E. McMinn No date on label. 39 Riverside March - Redlands Comment
  SD37433  Keckiella antirrhinoides var. antirrhinoides Florence Post 1931-5-1 2051 C Riverside Lake Elsinore Region Comment
  RSA160543  Keckiella rothrockii subsp. jacintensis J. D. Olmsted 1959-7-1 704 Riverside 1/4 mi. N of trunoff to Strawberry Cienega along trail from saddle to San Jacinto Park.; 4 mi ENE of Idyllwild; San Jacinto Mtn. Range. 2744 Comment
  VVC2011  Koeberlinia spinosa var. tenuispina Katey Palmer, Patty Kermoian 2010-4-9 s.n. Riverside Colorado Desert, 6 miles north of Desert Center 201 Comment
  UCR113247  Koeleria gerardi Mitch Provance 1998-3-7 174 A Riverside Jurupa Mtns., Sunnyslope area, c. 0.15 miles south of the Riverside/ San Bernardino County line on Armstrong St. 320 Comment
  RSA585503  Koeleria macrantha D. L. Banks, Steve Boyd 1995-5-9 0364 B Riverside NW Palomar Mountains; Agua Tibia Mountains; N of the Cleveland National Forest and the Agua Tibia Wilderness Area; N slope of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area;, W of Woodchuck Campground. 732 Comment
  CAS-BOT-BC61430  Krameria bicolor K. Bonner 1977-10-29 2585 Riverside Midland Road W. of Blythe 121 Comment
  LA45676  Krameria bicolor Carl Epling; William Robison 1933-6-24 sn Riverside Little San Bernardino Mountains, Morongo Pass Comment
  CLARK-A1528-3029  Krameria grayi John C. Roos 1948-4-24 3804 Riverside Whitewater Comment
  RSA248056  Krameria grayi Robert F. Thorne, C. W. Tilforth 1973-5-30 43578 Riverside Colorado Desert: Mouth of Morongo Valley at N end of Coachella Valley 549 Comment
  RSA735400  Krameria grayi Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11228 Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  CAS-BOT-BC340718  Laennecia coulteri H. M. Hall; L. A. Greata 1905-4-1 5941 Riverside Paloverde [Palo Verde] Valley Comment
  UC64845  Laennecia coulteri E. A. Zumbo 1904-1-1 438 Riverside Cold Water Canyon Santa Ana Mts. Comment
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Jan 11 2007
  RSA192323  Lagophylla ramosissima E. W. Lathrop 1966-9-14 6584 Riverside 3 miles SW of Murrieta. Comment
  JEPS69283  Lamarckia aurea W. L. Jepson 1901-5-17 1208 Riverside e of Riverside (on road to San Jacinto, journey from Riverside to Santa Rosa Peak and Palomar); Southern California 266 Comment
  UCR49265  Lamarckia aurea Steve Boyd 1986-4-2 1636 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  HSC17018  Langloisia setosissima subsp. setosissima C. L. Hitchcock 1966-3-20 24310 Riverside N of Milpitas Wash, Ogilby-Blythe Rd. Comment
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Mar 2 2013
  UC648322  Langloisia setosissima subsp. setosissima Lewis S. Rose 1937-4-10 37159 Riverside 7 mi. e. Indio (Indio-Blythe Rd.) 38 Comment
  CAS-BOT-BC170706  Larrea tridentata John H. Thomas 1957-3-30 6527 A Riverside 0.8 mile seast of Cactus City, about 13 miles east of Coachella, near U.S. Highways 60 and 70 - Colorado Desert 518 Comment
  RSA329549  Larrea tridentata Gary D. Wallace 1966-3-26 266 Riverside Thousand Palm Oasis in the Indio Hills 70 Comment
  UCR148455  Larrea tridentata 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
  UCR227464  Larrea tridentata Thomas R. Stoughton, J. McConnaughy, D. Monks, M. Volke 2010-4-21 151 Riverside Little San Bernardino Mountains, north of Desert Center, junction of Hwy 177 and Kaiser Road west of Kaiser Road, north of Hwy 177 335 Comment
  UCR260355  Larrea tridentata A. C. Sanders, Jim Malusa 2015-3-10 41369 Riverside Sonoran (Colorado) Desert, north end of Chocolate Mountains, Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range 610 Comment
  HSC85391  Lastarriaea coriacea Steve Boyd 1986-4-19 1697 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Rd. Comment
  RSA784516  Lastarriaea coriacea Anna Kostikova, Glenn Litsios, Sarah Burgy, Steve Boyd 2010-6-20 73 Riverside Crossing of Woodchunk road and 79 Hwy Comment
  CLARK-A1045-288  Lasthenia coronaria George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along San Jacinto Ridge Road at Oak Spring turnoff; chaparral; ; Lake Fulmor 7.5'Q 914 Comment
  JEPS82233  Lasthenia coronaria Rimo Bacigalupi, and L. Heckard 1962-3-25 8399 Riverside about 10 air miles nw Elsinore (near Arcilla siding of A.T. & S.F. Railway, just below and e of state Highway 71); Temescal Wash 289 Comment
  RSA487549  Lasthenia coronaria Bill Wagner 1988-3-2 s.n. Riverside Glenoaks Road about 2.5 mi S if Lake Skinner and ca. 8 mi NE of Temecula. 564 Comment
  UC1563067  Lasthenia coronaria Steve Boyd, Tim Ross, and Laurel Arnseth 1989-4-1 3106 Riverside 1.25 mi wsw of dam Vail Lake area 609 Comment
  UCR1204  Lasthenia coronaria Martha McCarthy 1960-3-20 s.n. Riverside Box Springs Mtns, University of California Campus, east side of hill west of road leading past the reservoir. Comment
  UCR172198  Lasthenia coronaria John F. Green 2006-5-2 s.n. Riverside Peninsular Ranges, French Valley: Leon Road (San Diego Aqueduct right of way) from Borel Road/Tucalota Creek S for c. 0.25 mi 427 Comment
  POM184253  Lasthenia gracilis P. A. Munz 1932-3-24 12015 Riverside Corona 366 Comment
  RSA769763  Lasthenia gracilis Duncan S. Bell, Valentin Arvizu 2010-5-10 985 Riverside San Bernardino National Forest: Garner Valley, approximately 1.4 air miles southeast of junction of forest service road 6S13 and forest service road 6S04. 1365 Comment
  UCR126983  Lasthenia gracilis A. C. Sanders, T. B. Salvato 2003-5-9 26586 Riverside San Jacinto Valley, west of Hemet, west edge of Warren Road just north of Hwy 74 (Florida Ave.) 457 Comment
  UCR251697  Lasthenia gracilis T. B. Salvato 2014-4-9 7842 Riverside Perris-Aguanga Basin, Menifee, c. 4 mi southeast of Canyon Lake, northeast corner of Bundy Canyon Road and Sunset Avenue 534 Comment
  RSA93014  Lasthenia microglossa F. W. Peirson 1919-4-14 1376 Riverside Shelter of high wall of rock, Murray Canyon near Palm Springs. 488 Comment
  RSA802253  Lathyrus Duncan S. Bell, Caitlin Elam, Carrie Kiel 2013-6-5 4999 Riverside In Strawberry Creek below Strawberry Valley approximately 2.25 air miles southwest of Idyllwild. Comment
  RSA606059  Lathyrus vestitus var. alefeldii R. S. Woglum 1937-5-22 586 Riverside Santa Rosa Mountains. Comment
  UCR138636  Lathyrus vestitus var. alefeldii D. L. Banks, J. Moreno 1997-2-5 1262 Riverside Agua Tibia Mtns., NW Palomar Mountains: Pechanga Indian Reservation. The headwaters of Pala Creek at the southern extremity of the Reservation, north of the Riverside/San Diego County line border, including a large area of vernally wet grassland at the extreme southwestern corner of the Reservation 409 Comment
  RSA126657  Layia glandulosa Peter H. Raven 1958-5-18 12968 Riverside 2.3 miles from Mountain Center on road to Hemet, San Jacinto Mountains. Comment
  UC68881  Layia glandulosa H. M. Hall 1905-4-1 5771 Riverside Indian Well Colorado Desert, Indian Well Comment
  RSA614302  Layia platyglossa D. L. Banks, Victor Steinmann 1997-3-13 1506 Riverside Agua Tibia Mountains: Vail Lake area, north and just S of Hwy. 79. The hills east of the Dripping Springs alcove and west of Vail Lake Marina Road, that were burned in the Vail fire of May 1996. 476 Comment
  POM361702  Layia platyglossa subsp. campestris P. A. Munz, I. M. Johnston 1922-5-19 5419 Riverside Hemet Valley, San Jacinto Mountains. 1402 Comment
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Apr 3 2011
  POM361704  Layia platyglossa subsp. campestris Ora M. Clark 1929-4-6 1941 Riverside South of Hemet. Comment
  CAS-BOT-BC534384  Lemna gibba G. R. Kleeberger 1878-12-29 s.n. Riverside Temescal Comment
  RSA500133  Lemna minuta Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-10 3677 Riverside Vail Lake area, benches of Arroyo Seco and slopes of adjacent hills to E. 488 Comment
  UCR91866  Leonotis nepetifolia A. C. Sanders, G. K. Helmkamp 1995-12-5 17931 Riverside Riverside, yard of O.F. Clarke, 1012 Spruce Street [now an apartment complex], near Canyon Crest Drive 300 Comment
  CLARK-A1528-5691  Lepechinia cardiophylla John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1066 Comment
  SD115189  Lepechinia cardiophylla M. Kottman 1982-5-17 Riverside Junction of Indian Truck Trail and North Main Divide. Comment
  SD80983  Lepechinia cardiophylla Dick Potter 1970-8-1 Riverside 20 miles southsoutheast of Corona on Horsethief trail in vicinity of Main Divide Road. 1219 Comment
  LA204417  Lepidium fremontii Nesta Dunn; A. M. Martin 1932-3-27 sn Riverside Cottonwood Spring Comment
  SBBG70822  Lepidium fremontii S. W. Hutchinson, M. N. Ackley -Feb-1927 143 Riverside Desert Center 182 Comment
  UCR60439  Lepidium lasiocarpum R. F. Thorne, M. Z. Thorne 1973-3-30 42672 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
  SD231267  Lepidium latifolium Scott D. White 2003-6-9 9254 Riverside Perris Basin: Northeast corner of Devonshire Ave. and Warren Rd., immediately south of Tres Cerritos. 473 Comment
  UCR199777  Lepidium latifolium Scott D. White, Lynn Stafford 2007-6-27 11750 Riverside Chino Hills State Park, Santa Ana River floodplain just below Prado Dam 137 Comment
  UCR60563  Lepidium latifolium Don Mitchell 1990-1-3 s.n. Riverside Woodcrest, south of Van Buren and west of Washington 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
  RSA601927  Lepidium latipes var. latipes D. Bramlet 1997-3-13 2503 Riverside Nichols Road Wetlands. The site is located approx. 186 m southeast of Nichols Road, 91 m west of Collier Ave, and 196 m west of the I-15. 381 Comment
  UCR107718  Lepidium nitidum A. C. Sanders 1997-3-1 19741 Riverside Box Springs Mountains, Riverside: S end of the range along Gernert Rd. (dirt road paralleling the mountain front), in valley draining to Box Spring Canyon. 457 Comment
  RSA586148  Lepidium strictum D. L. Banks, S. D. Boyd 1995-3-16 110 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. E of the Dripping Springs Alcove, N slope of Wildhorse Peak, on the Wildhorse Trail. 616 Comment
  CAS-BOT-BC60105  Lepidium virginicum var. menziesii Street; Durant 1918-5-12 s.n. Riverside San Jacinto River Canyon. Comment
  UCR112593  Lepidium virginicum var. robinsonii Mitch Provance 1998-2-17 77 Riverside Jurupa Mountains, Slopes on the W side of Sierra Blvd, c. 0.7 km NNW of the Jensen Quarry 396 Comment
  RSA659770  Leptochloa fusca subsp. uninervia J. C. Roos, L. Roos 1951-10-24 5332 Riverside Flats between Arlington and Pedley 229 Comment
  SDSU13827  Leptochloa fusca subsp. uninervia W. Miller, C. Mosse 1972-8-9 Riverside North bank of beaver dam, west of large boulder. Comment
  RSA561066  Leptosiphon androsaceus T. S. Ross, D. E. Bramlet 1993-5-12 7347 Riverside Southern Santa Ana Mountains, San Mateo County Wilderness area. San Mateo Canyon, along stream bed and adjacent to benches and lower slopes from confluence with Los Alamos Canyon downstream to confluence with Tenaja canyon,. 366 Comment
  HSC86251  Leptosiphon ciliatus Jane Hildreth 1981-6-4 31 Riverside James Reserve in the San Bernardino National Forest along Hwy. 243, San Jacinto Mtns. 1616 Comment
  RSA180503  Leptosiphon liniflorus E. W. Lathrop 1959-5-17 4559 Riverside 10 miles W of Murrieta. Comment
  RSA73075  Leptosiphon liniflorus F. W. Peirson 1924-7-2 5032 Riverside Banning to Idyllwild road. 1570 Comment
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Nov 17 2011
  RSA92574  Leptosiphon pygmaeus subsp. pygmaeus J. C. Roos 1952-5-7 5619 Riverside Box Springs Mountains, north of Canyon Crest Heights 488 Comment
  UC217892  Lesquerella tenella P. A. Munz and D. Keck 1922-4-9 4815 Riverside Hayfields; Chuckawalla Valley Hayfields; Colorado Desert, Chuckawalla Valley, Hayfields 152 Comment
  SDSU4743  Lessingia glandulifera var. glandulifera Florence Youngberg 1933-8-28 1553 Riverside Idyllwild Pines, San Jacinto Mts. Comment
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Jan 24 2013
  RSA708047  Leymus triticoides Scott D. White, Angelia Carey 2004-5-7 10350 Riverside Indian Creek and adjacent foothills. 549 Comment
  UCR60497  Lilaea scilloides R. F. Thorne 1973-5-23 43841 Riverside Santa Rosa Plateau, north side of Mesa de Colorado 610 Comment
  UC454443  Lilium parryi I. J. Condit 1910-6-22 Riverside San Jacinto Mt. 2438 Comment
  UCD98541  Limonium sinuatum Mitch Provance 1998-6-11 674 Riverside Jurupa Mountains: 'Twin Canyons', S of the historical community known as Declezville. This housing development area is now known as Southridge. 320 Comment
  POM159844  Linanthus aureus E. C. Jaeger 1928-3-24 s.n. Riverside Eagle Mts. Colo. Desert. Comment
  UC219592  Linanthus ciliatus P. A. Munz 1922-6-23 5765 Riverside Keen Camp San Jacinto Mts. 1524 Comment
  UC455667  Linanthus ciliatus I. J. Condit 1910-6-24 Riverside Strawberry Valley San Jacinto Mts. 914 Comment
  UCR102820  Linanthus dianthiflorus A. C. Sanders 1997-3-26 20110 Riverside Lake Skinner area, NW foot of Tucalota Hills, shallow valley along dirt road 0.65 mi. east of main Lake Skinner road 457 Comment
  UCR256805  Linanthus dianthiflorus T. B. Salvato, Thomas M. Sullivan Jr 2014-4-23 7863 Riverside Gavilan Hills, Southern CA Edison access road east of Lake Street, c. 1 mi north of Hwy 15 and Temescal Canyon 500 Comment
  RSA612825  Linanthus dianthiflorus subsp. dianthiflorus D. L. Banks 1997-3-1 1344 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
  SEINET11266059  Linanthus floribundus Tracy Tennant, Mitch Provance 1998-6-16 MOR- 409 Riverside San Bernadino Mtns. Foothills; Morongo Indian Reservation, upper Millar Canyon, north of Cabazon (Cabazon 7.5' Q.); 0 1098 Comment
  UC879946  Linanthus floribundus subsp. glaber P. A. Munz 1922-4-28 5048 Riverside Leach Canyon Santa Ana Mts. 670 Comment
  UCR214286  Linanthus jonesii A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37487 Riverside Sonoran (Colorado) Desert, SE side of McCoy Mountains, upper part of wash c. 4.5 mi. NW of Blythe Airport, c. 3.5 mi. ENE of McCoy Peak 244 Comment
  UCR101468  Linanthus liniflorus A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22216 Riverside San Bernardino Mtns., Morongo Indian Reservation, side canyon east of Middle Branch of Millard Canyon 1341 Comment
  SBBG87907  Linaria maroccana B. Pitzer 1986-2-22 17 Riverside Whitewater Cyn, at Fish Hatchery Comment
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Jan 14 2010
  SBBG67529  Linum lewisii var. lewisii Mr.and Mrs. L. C. Ackley 1918-1 491 Riverside San Jacinto Mtns 1219 Comment
  HSC94247  Lithophragma parviflorum D. Atwood 1993-3-26 17681 Riverside Santa Ana Mtns., 4.8 mi. S of Lake Elsinore along Hwy. 74 808 Comment
  RSA757740  Loeflingia squarrosa LeRoy Gross, Jackie McConnaughy, Drew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4307 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
  UCR243125  Loeflingia squarrosa Kate Kramer 2012-5-8 255 Riverside Peninsular Range; San Jacinto Mountains, c. 0.25 km east of National Forest Land boundary on north side of Hwy 74 near the Cranston Fire Station 575 Comment
  CHSC26202  Loeseliastrum matthewsii Cheryl Johnson 1967-3-26 43 Riverside 3 miles SE of Palm Springs on Varner Road near Willis Palms in Indio Hills. 30 Comment
  CDA40087  Loeseliastrum schottii T. C. Fuller 1964-4-14 11824 Riverside Bench above wash of Whitewater Canyon, 4.1 miles north of Whitewater. 0 Comment
  RSA23274  Loeseliastrum schottii Ernest Braunton 1940-03 2034 Riverside Berdoo Canyon. Comment
  UCR60247  Loeseliastrum schottii Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3650 Riverside Butterfield Valley, Vail Lake area, Temecula Creek, SE of the lake, just north of Hwy 79 488 Comment
  CAS-BOT-BC342258  Logfia filaginoides L. R. Abrams 1926-3-26 11030 Riverside Palm Springs Comment
  JEPS20883  Logfia filaginoides W. L. Jepson 1935-4-17 19153 Riverside 1.5 mi in Elsinore 457 Comment
  JOTR34276  Logfia filaginoides La Doux, Tasha, M. Harding, B. Truesdell, M. Wheeler 2010-5-12 3291 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Sandy, narrow canyon at base of Quail Mountain with bouldery/rocky slopes; North end of Juniper Flats (Stop 3) Comment
  UCR2519  Lolium perenne subsp. multiflorum F. M. Reed 1906-5-27 968 Riverside San Bernardino Valley, Riverside, Grand Avenue opposite Rudolph's Ranch 244 Comment
  RSA192223  Lolium perenne subsp. multiflorum E. W. Lathrop 1966-5-11 6291 Riverside 3 miles SW of Murrieta on the De Luz Road, first canyon to the right of the road. Comment
  UCR199939  Lolium rigidum Scott D. White, Justin Wood 2008-5-13 11951 Riverside Perris Basin, I-215 freeway south of San Jacinto River crossing 431 Comment
  UCR162264  Lomatium dasycarpum 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
  RSA523492  Lomatium lucidum Steve Boyd, Timothy S. Ross, L. Arnseth 1990-3-30 3952 Riverside Vail Lake area, saddle at N base of Big Oak Mtn, S of Black Hills. 732 Comment
  UC1375401  Lomatium utriculatum Louis B. Ziegler 1969-5-7 Riverside Hemet Valley near Kenworthy Ranger Station San Jacinto Mountains 1447 Comment
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Mar 25 2011
  POM157935  Lomatium vaginatum P. A. Munz 1927-5-21 10834 Riverside Coahuila Valley. Comment
  CAS-BOT-BC167077  Lonicera subspicata Wayne Law; Jun Hu 2000-5-16 20 Riverside Peninsular Ranges; Santa Ana Mtns.: Eastern edge of Cleveland National Forest, above Temescal Valley in Indian Canyon, 11.8 mi S of Corona 396 Comment
  UCD137364  Lonicera subspicata M. Vincent 1963-7-8 431 Riverside Upper San Juan Campground. Hwy #74. Comment
  POM307268  Lonicera subspicata var. denudata Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2118 Riverside Santa Rosa Mountains. Comment
  JEPS55406  Lotus argophyllus Marjorie D. Clary 1932-4-3 1184 Riverside 15 mi sw Indio; Colorado Desert, Deep Canyon 304 Comment
  UCR91680  Lotus argophyllus Steve Boyd, D. L. Banks 1995-4-5 8418 B Riverside Agua Tibia Mountains, Palomar Range, Agua Tibia Wilderness Area; northern flank of Agua Tibia Mtn. at the E edge of Dripping Springs Alcove in tributary of Arroyo Seco, west of the lower Dripping Springs Trail, just south of the Wilderness boundary 610 Comment
  UC56579  Lotus argophyllus var. argophyllus H. M. Hall Apr 1902 2899 Riverside vicinity Sage 762 Comment
  UC729879  Lotus crassifolius var. crassifolius Carl B. Wolf 1932-8-4 Riverside near Idyllwild; San Jacinto Mts., Point View 1645 Comment
  RSA180428  Lotus hamatus E. W. Lathrop 1965-5-30 5771 Riverside 6 miles W of Murrieta. 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
  JOTR29600  Lotus heermannii var. heermannii Andre, Jim 2006-4-26 6757 Riverside Joshua Tree National Park. Long Canyon, approximately 2.3 mi. S of NE corner (boundary) of park 1055 Comment
  SDSU13583  Lotus heermannii var. heermannii W. Miller with C. Mosse 1972-7-5 Riverside Comment
  SEINET273067 Image available Lotus humistratus A. C. Sanders 1997-3-26 20125 Riverside Lake Skinner area;large clay patch adjacent to the Skinner entrance rd ca 1 km NE of Borel Rd UTM 10km cell: MH-9E 1N 473 Comment
  SEINET3694576 Image available Lotus humistratus A. C. Sanders 1997-3-19 20046 Riverside Lake Skinner area: lower S slopes of Bachelor Mtn. 472 Comment
  UCR225443  Lotus humistratus A. C. Sanders, T. B. Salvato 2011-3-29 38852 Riverside Peninsular Range; Perris-Aguanga Basin Region, valley at toe of hills between Sun City and Perris, powerline corridor between Goetz Rd. and Alabaster Loop, north of Goldenrod Ave. 448 Comment
  RSA406419  Lotus oblongifolius var. oblongifolius N. C. Cooper 1944-7-16 1563 Riverside Above Pine Cove, San Jacinto Mtns. 1829 Comment
  RSA740073  Lotus purshianus Scott D. White, Justin M. Wood 2008-6-16 12136 Riverside San Jacinto Mountains: Meadow at Quinn Flat. 1378 Comment
  JEPS55816  Lotus rigidus Marjorie Clary 1931-4-4 49 Riverside Devils Canyon Comment
  JOTR32152  Lotus rigidus La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2307 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Granitic bedrock slopes and outcrops (Stop 4) Comment
  RSA6200  Lotus rigidus B. D. Stark 1932-6-5 1514 Riverside Palms to Pines Road 1067 Comment
  UC555405  Lotus rigidus Frank W. Peirson 1922-4-9 Riverside Andreas Canyon Comment
  RSA735319  Lotus salsuginosus var. brevivexillus Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11287 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
  RSA0029328  Lotus scoparius John F. Emmel 1987-4-14 1046 Riverside Little San Bernardino Mts: Lower Covington Flat, from area just east of Covington Spring to 0.5 air mi SE of Covington Spring. 1372 Comment
  RSA770294  Lotus scoparius subsp. brevialatus Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4579 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  RSA25620  Lotus scoparius var. brevialatus C. B. Wolf 1938-9-29 10927 Riverside 9 miles from Temecula on road to Aguanga. Fork of Temecula wash. 335 Comment
  RSA776227  Lotus scoparius var. brevialatus Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 877 Riverside Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon 762 Comment
  UCR20970  Lotus scoparius var. brevialatus A. C. Sanders 1980-5-2 1427 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  CSUSB1248  Lotus strigosus Nancy J. Matthews 1963-5-9 50963 1 Riverside 1 mile northwest of Gilman Hot Springs on Highway 79; along roadside. 457 Comment
  RSA523481  Lotus strigosus Steve Boyd, T. S. Ross, L. Arnseth 1990-3-29 3941 Riverside Vail Lake area, summit of Big Oak Mtn, N. of lake. 793 Comment
  RSA586301  Lotus strigosus D. L. Banks, S. D. Boyd 1995-5-3 0212 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
  RSA779588  Lotus strigosus Duncan S. Bell 2009-3-7 20 Riverside Arica Mountains: collecting on the ridgeline of the mountain range just north of the summit along the border of the Palen/McCoy Wilderness area. 614 Comment
  SEINET3004995  Lotus strigosus G. Rink, M. Baker 2011-4-3 10423 Riverside Northwest of Blythe, east of the McCoy Mtns, desert pavement 170 Comment
  SEINET7073384  Lotus strigosus A. G. Vestal 1963-4-23 s.n. Riverside About 0.6 mile up Railroad Canyon Road southeast of Lake Elsinore. Coordinate datum: NAD27. Comment
  RSA0127778  Lotus strigosus G. Rink, M. Honer, A. Karl, T. Thomas, M. Baker 2013-3-18 11871 Riverside About twelve miles west of Blythe, along the powerline west of the proposed Quartzite solar power plant. 116 Comment
  RSA406327  Lotus strigosus var. strigosus N. C. Cooper 1945-3-25 s.n. Riverside Cottonwood Creek near Aguanga, San Diego & Riverside. Comment
  UCR279413  Lotus strigosus var. tomentellus A. C. Sanders, Jim Malusa 2017-3-25 42989 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
  CLARK-A1656-803  Lotus tomentellus Theo Glenn 1982-3-21 Riverside Snow Creek Comment
  POM259731  Lotus tomentellus E. C. Jaeger 1939-12-29 s.n. Riverside Eytel canon [canyon]branching from Fargo Canon [canyon] 5 mi. east Indio. 244 Comment
  UCR75098  Lotus tomentellus A. C. Sanders, E. J. Lawlor 1992-4-4 12089 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  SEINET10838370  Lotus tomentellus David B. Dunn, Dhogo; Schroeder, (UMO); Bruskin; A. Folsom 1948-3-13 Dunn 3709 Riverside Found growing in a wash. Indio hills, colorado desert. Near pushawalla. Comment
  RSA90345  Lotus wrangelianus F. W. Peirson 1930-5-10 8770 Riverside Roadside, on Hemet Plateau near March Field, between Riverside and Perris. 457 Comment
  RSA0042691  Lupinus Henry J. Ramsey, Henry J. Ramsey 1938-4-26 1704 Riverside Cabazon. Comment
  RSA777758  Lupinus arizonicus Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-27 1079 Riverside Shavers Well area of Mecca Hills 305 Comment
  SBBG3531  Lupinus arizonicus H. and M. Dearing 1939-12-31 4063 Riverside near NE end of Salton Sea Comment
  UC1129709  Lupinus arizonicus H. S. Yates 1937-3-23 6420 Riverside 5 mi nw Edom; Thermal Quad., nw of Edom Comment
  POM350005  Lupinus bicolor Ora M. Clark 1929-2-23 1526 Riverside South of Cabazon Comment
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Mar 13 2011
  RSA776213  Lupinus bicolor Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 865 Riverside Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon 610 Comment
  UCR241249  Lupinus bicolor T. B. Salvato, Tracy Tennant 1998-4-16 MOR- 1209 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Potrero Canyon about 1 mile above locked gate, east side of road near old corrals, tree stand P-03 976 Comment
  SEINET3101907  Lupinus concinnus Marc A. Baker, with Michelle Cloud-Hughes 2011-6-12 17377 Riverside Goff Flat, 5.5km SW of Pyramid Peak Comment
  UCR60918  Lupinus concinnus Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3166 Riverside Peninsular Range, Vail Lake area; hills just to SW of the dam 488 Comment
  POM122422  Lupinus concinnus subsp. optatus Marcus E. Jones 1926-6-20 s.n. Riverside 12 miles north of Idyllwild, San Jacinto Mountains. Comment
  SEINET10870974  Lupinus concinnus subsp. optatus Tilforth 1980-6-10 TILFORTH 1985 Riverside Common on dry banks & road cuts at all elevations. Along north leg of thomas Mtn. Rd., South of lake hemet, hiway 74. Comment
  RSA314672  Lupinus concinnus subsp. orcuttii Robert F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55497 Riverside San Bernardino Mountains: Whitewater River where road crosses river below fish hatchery, ca. 4 miles north of Whitewater Post Office. 640 Comment
  RSA395898  Lupinus densiflorus var. lacteus Steve D. Boyd 1986-4-22 1763 Riverside Temescal Canyon; W side of Indian Wash, S of I-15 Comment
  OBI40934  Lupinus excubitus Jennifer Lyman 1981-5-24 s.n. Riverside May Valley rd, Idyllwild Comment
  SBBG13893  Lupinus excubitus H. and M. Dearing 1940-6-8 4346 Riverside W of Ribbonwood, Palms to Pine Hwy 1219 Comment
  RSA630294  Lupinus formosus var. formosus R. S. Woglum 1941-5-17 3059 Riverside Peninsular Ranges / Sonoran Desert transition: Coyote Canyon. Comment
  RSA614164  Lupinus hirsutissimus D. L. Banks 1997-2-23 1313 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
  UCR215129  Lupinus hirsutissimus Sarah C. Pasquini 2008-4-18 15 Riverside Peninsular Range; San Jacinto Mtns., c. 6.5 miles south of city of Banning, 200 m down Mt. Edna Road off hwy 243 1160 Comment
  POM11280  Lupinus latifolius subsp. parishii Philip A. Munz 1922-7-7 6057 Riverside North Fork of Tahquiz Creek 2195 Comment
  SD28123  Lupinus latifolius var. parishii Carl B. Wolf 1932-8-5 3951 Riverside San Jacinto Mountains 1st real wet meadow of trail from Tahquitz Valley to San Jacinto Peak 2743 Comment
  SD148159  Lupinus microcarpus var. microcarpus G. K. Helmkamp, E. A. Helmkamp 2001-5-2 6624 Riverside La Panza Range: CA-58 11.2 miles east of Santa Margarita 487 Comment
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Dec 7 2011
  POM187416  Lupinus polyphyllus var. burkei L. Crutcher 1933-8-22 6 Riverside stream between Tahquitz Valley and Red Tahquitz, San Jacinto Mts. Comment
  UCR132485  Lupinus shockleyi Chris E. True 2004-3-4 s.n. Riverside Coachella Valley, Windy Point, south side of point 311 Comment
  HSC84217  Lupinus sparsiflorus Karin Cleary 1987-4-8 12 Riverside E side of freeway Sunset Ave., 1.25 km N of freeway I-10 823 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
  SD6074  Lupinus sparsiflorus unknown Riverside Palm Springs Comment
  SDSU18359  Lupinus sparsiflorus C. Matt Guilliams, Jeannine Ross 2008-3-12 528 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. 428 Comment
  UC1537125  Lupinus sparsiflorus Gordon H. True Jr. 1935-3-15 113 Riverside Box Springs 396 Comment
  UC865552  Lupinus sparsiflorus I. W. Clokey 1935-4-17 6710 Riverside washes and hills Cottonwood Springs (Cottonwood Springs) Comment
  UCR121225  Lupinus sparsiflorus Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2310 Riverside San Jacinto Mtns, Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest 1700 Comment
  UCR20843  Lupinus sparsiflorus Ken Shackel 1980-3-7 s.n. Riverside Barrow [sic] pit area at N end of Mt. Vernon Avenue on lower slopes of Box Springs Mountains. Comment
  UCR241213  Lupinus sparsiflorus Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 50 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Hathaway Canyon near woodland stand H-02 945 Comment
  UC73208  Lupinus truncatus Miss M. A. King 1893-1 Riverside Menifee Comment
  UCR177702  Lupinus truncatus Michael Wall, Jett, Perez, and Garcia 1994-6-1 60 Riverside Peninsular Ranges; Perris-Aguanga Basin region, S of Hemet, 0.2 mi west of Benji Lane off Hwy R-3 168 Comment
  UCR225213  Lupinus truncatus T. B. Salvato, Matt Malle, Tim Searl 2011-4-19 5165 Riverside Peninsular Range; Gavilan Hills, Alberhill, unpaved extension of Lake Street, 1.5 km NNE of the intersection of Lake Street and Hwy 15 473 Comment
  CAS-BOT-BC231417  Lycium andersonii D. E. Breedlove 1962-3-11 1891 Riverside On State 74, 3.7 miles south-west of Palm Desert 335 Comment
  HSC25925  Lycium andersonii R. W. Spjut 1972-1-20 2124 Riverside Colorado Desert, N base of the Chuckawalla Mtns. 305 Comment
  RSA422108  Lycium andersonii M. B. Dunkle 1937-3-25 4926 Riverside Colorado Desert. Shaver's Well Comment
  RSA428543  Lycium andersonii var. deserticola H. S. Gentry 1949-4-10 8697 Riverside Aguanga. Comment
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May 25 2016
  POM4213  Lycium torreyi I. M. Johnston 1917-4-4 s.n. Riverside Palm Canyon. 274 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
  SBBG122032  Lythrum californicum S. D. White, A. Carey 2004-5-7 103421 Riverside Indian Crk and adjacent foothills 549 Comment
  UCR34958  Madia elegans subsp. wheeleri L. B. Ziegler 1968-6-12 312 Riverside San Jacinto Mtns, Thomas Mtn 1982 Comment
  UC484191  Malacothamnus densiflorus J. T. Howell 1928-7-8 1056 Riverside above Glen Ivy; Santa Ana Mtns 914 Comment
  UCR193312  Malacothrix clevelandii A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35596 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek watershed, along foot trail from May Valley Road toward mapped spring 1560 Comment
  UCR213889  Malacothrix clevelandii Scott D. White, Justin M. Wood 2009-5-22 12913 Riverside San Jacinto Mountains, Idyllwild area, 'Strawberry Fuelbreak' between Strawberry Creek and road to sewage ponds 1456 Comment
  UC54143  Malacothrix coulteri H. M. Hall 1902-4-21 Riverside vicinity Riverside 487 Comment
  CAS-BOT-BC347698  Malacothrix glabrata Scott D. White 1996-4-14 3897 Riverside Perris Basin, W Riverside Co. E of Hemet: San Jacinto River Wash near Valle Vista, N of Hwy. 74, ca. 1.7 mi W of USFS Cranston Fire Station 550 Comment
  POM362322  Malacothrix glabrata Ora M. Clark 1929-3-16 1693 Riverside South of Cabazon. Comment
  RSA554211  Malacothrix glabrata Theo Glenn 1991-4-9 91 -5 Riverside Big wash in Eagle Mountains 786 Comment
  RSA721104  Malacothrix glabrata J. R. Bruff 1927-3-13 2 -C Riverside Fingal. Comment
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Aug 25 2012
  HSC80237  Malvella leprosa Steve Boyd 1985-8-7 1120 Riverside Murrieta area, Clinton Keith Rd. near (just E of) Bear Creek golf course Comment
  RSA557349  Malvella leprosa Julie Greene 1993-5-12 1298 Riverside San Jacinto Wildlife Area; south of gated W-E road, east of Davis Road. 433 Comment
  POM286349  Mammillaria dioica Lyman Benson 1949-3-28 13558 Riverside Santa Rosa Mountains. Pines to Palms Highway from Palm Springs to Hemet. 732 Comment
  RSA0126634  Mammillaria tetrancistra Duncan S. Bell 2016-3-4 8803 Riverside Orocopia Mountains; northwestern corner of range; collecting in the Orocopia Mountains Wilderness area in an unnamed canyon approximately 3.75 air miles northwest of the summit of the range. 738 Comment
  CSUSB958  Marah macrocarpa Linda Stangor 1974-4-10 Riverside Box Springs Mountains Box Springs Mountains. Top of valley to left of Big "C," near bee cave. Comment
  JEPS42475  Marah macrocarpa Marjorie D. Clary 1932-3-20 1476 Riverside 10 mi ne Garnet (drains Moreno Valley); Colorado Desert, Conchilla Range, Mission Creek 457 Comment
  SDSU14246  Marah macrocarpa Ingrid Poulin 2002-3-1 2 Riverside Santa Margarita Ecological Reserve; unpaved road approx. 200 ft. west of Red Mountain Truck Trail (0.8 miles from N. Stagecoach Lane). 259 Comment
  UC1419866  Marina orcuttii Jan Zabriskie 1976-6-1 849 Riverside near Horsethief Creek (Cactus Spring trail, Boyd Deep Canyon Desert Research Center, University of California); Santa Rosa Mts. 1127 Comment
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Mar 20 2011
  CAS-BOT-BC216177  Marina parryi Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center, Colo Desert Comment
  JEPS41718  Marina parryi M. Clary 1931-4-4 4 Riverside wash of Santa Rosas Coachella Valley, Devils Canyon Comment
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Nov 6 2011
  RSA487527  Marina parryi B. Pitzer 1988-3-10 646 Riverside Chuckwalla Mountains. W side of mountains, on gas line road ca. 1.5 mi north of intersection with Red Cloud Mine Road (and wash); ca. 2 miles (airline) S of Highway I-10. (Red Cloud Road. 10 km cell; PH-2N, 3E) 488 Comment
  UC1329934  Marina parryi James E. Cole 1941-4-13 563 Riverside 0.5 mi n Meek's Cabin; Joshua Tree national Monument, Pinto Pass Comment
  UC73150  Marina parryi E. E. Schellenger 1904-12-4 95 Riverside Chuckawalla Bench Colorado Desert Comment
  UCR59713  Marina parryi A. C. Sanders 1989-9-19 9505 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, 1.75 km (airline) south of Tabaseca Tank, along the wash above 'Tabaseca Target 680 Comment
  RSA381086  Marsilea vestita R. F. Thorne, Steve Boyd, Earl Lathrop 1985-7-18 61175 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: along Cole Canyon. 535 Comment
  UCR141352  Marsilea vestita Chris E. True, Robert Cox 2004-4-22 s.n. Riverside San Jacinto Valley, San Jacinto Wildlife Area, directly off the NE corner of Pond One, c. 4 miles SE of Moreno 436 Comment
  UCR162942  Marsilea vestita Fred M. Roberts 1995-5-24 4945 Riverside Hemet, Upper Salt Creek drainage, N of Florida Avenue (State Route 74) and west of Warren Road, c. 1.6 km NW Ryan Field 548 Comment
  SBBG100456  Matricaria discoidea W. L. Halvorson 1977-3-13 77 -179 Riverside near Temecula Comment
  RSA134672  Meconella denticulata C. Epling 1937-5-7 s.n. Riverside Idylwild Road. Comment
  CDA4189  Medicago lupulina Steve Boyd 1989-7-9 3775 Riverside City of Riverside, 4863 Rubidoux Ave. 0 Comment
  CSUSB1095  Medicago sativa Arthur P. Donaldson 1966-3-16 Riverside Collected in front of the Arlington Flower Shop at 9693 Magnolia Ave., Arlington, Ca. 259 Comment
  RSA799091  Melica frutescens Sarah J. De Groot, Evan Meyer, Abby Hird 2013-3-23 6889 Riverside Joshua Tree National Park, Biodiversity Hunt; north and northwest part of Lost Palms Oasis 988 Comment
  UCR19350  Melica frutescens John C. Roos 1965-6-13 s.n. Riverside San Jacinto Mtns, W base of the mountains, east of Hemet Comment
  RSA249842  Melica imperfecta R. F. Thorne, J. P. Simon, CW Tilforth 1969-6-24 38107 Riverside San Jacinto Mountains: San Bernardino National Forest. Above James Reserve in Hall Canyon 1677 Comment
  SD237270  Melica imperfecta A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-4-2 37748 Riverside Peninsular Range: Alberhill, south foot of the Gavilan Hills at Temescal Canyon, north of I-15 and Concordia Ranch Rd. 1.65 mi. ESE of Corona Lake, .5 mi, NE of Temescal Canyon Rd. where it goes under I-15. 404 Comment
  UCR100314  Melica imperfecta B. G. Pitzer 1997-4-20 3170 Riverside Lakeview Mtns, top of the hill on Dutton Street, just east of Horseshoe Trail, at a point c. 0.4 mi. north of Stagecoach Road. 640 Comment
  UCR128559  Melica imperfecta A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23905 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
  UCR281479  Melica imperfecta Mitch Provance, Matt K. Beyers, John Hazlett 2017-3-30 317- 81 Riverside Temescal Valley, 0.4 miles SE of Horsethief Canyon Rd. and the 15 Fwy. 391 Comment
  UCR5910  Melica imperfecta Leland E. Francois 1966-4-23 42366- 7 Riverside Mojave Desert, Joshua Tree National Monument [now J.T. National Park], south edge of Ryan Mountain Campground 1300 Comment
  UCR165287  Melilotus albus John F. Green 2005-2-3 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, transect along Coachella Canal right-of-way, between siphons 29 and 30, c. 3 miles east of Desert Beach 24 Comment
  RSA736541  Melilotus indicus Scott D. White 2004-4-26 10262 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Indian Creek Watershed. 518 Comment
  CLARK-A1528-5349  Mentha citrata John C. Roos 1951-9-25 5289 Riverside Riverside Comment
  UCR18812  Mentha spicata John C. Roos 1952-8-6 5881 Riverside San Bernardino Valley, Riverside, W end of Fairmont Park 259 Comment
  UCR163513  Mentzelia B. G. Pitzer, J. Ross 1998-3-8 3600 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UC1329908  Mentzelia albicaulis James E. Cole 1941-4-15 600 Riverside Joshua Tree National Monument, Pleasant Valley 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
  UCR74380  Mentzelia albicaulis Theo Glenn 1991-5-1 91- 54 Riverside Sonoran (Colorado) Desert, McCoy Mts, NW of Blythe 240 Comment
  JEPS29275  Mentzelia desertorum Rimo Bacigalupi, L. Heckard and P. Hutchison 1962-3-21 8343 Riverside 2.3 mi below and sw Shavers (along Calif. Highway 195); Box Canyon Wash 243 Comment
  JOTR29305  Mentzelia involucrata La Doux, Tasha, Mike Bell 2006-5-17 1382 Riverside Joshua Tree National Park. East Deception Canyon Comment
  RSA440407  Mentzelia involucrata M. B. Dunkle 1935-3-30 4429 Riverside Pinto Basin, Colorado Desert. 915 Comment
  RSA676101  Mentzelia involucrata Scott D. White 2001-4-3 8266 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  RSA776821  Mentzelia involucrata Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-28 1094 Riverside Chuckwalla Mountains, Corn Springs Road; Road crossing of main wash that drains Chuckwallas to the east toward the Chuckwalla Bench 427 Comment
  SBBG24103  Mentzelia involucrata A. I. Richardson 1966-3-28 Riverside above Desert Highland Hot Springs Comment
  VVC305  Mentzelia involucrata W. W. Mayhew 1960-3-17 s.n. Riverside Colorado Desert, 4.5 miles NW Desert Hot Springs. 482 Comment
  CDA36639  Mentzelia involucrata var. megalantha G. D. Barbe, T. C. Fuller 1973-2-27 1060 Riverside 0.2 mile east of Coachella Canal on Highway 195, Box Canyon Wash, northeast of Mecca. 0 Comment
  RSA440420  Mentzelia involucrata var. megalantha W. D. Pierce 1940-2-24 s.n. Riverside Painted Canyon, Orocopia Mts. Comment
  RSA69584  Mentzelia involucrata var. megalantha F. W. Peirson 1926-1-31 6494 Riverside Dos Palmas [Spring], Colorado Desert. Comment
  PASA1550  Mentzelia laevicaulis Margaret Stason 1931-5-24 Riverside Road to Idyllwild near base Comment
  UCR104003  Mentzelia obscura George K. Helmkamp 1998-4-4 3145 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR30091  Mentzelia obscura George K. Helmkamp 1983-4-5 483- 25 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  RSA654612  Mentzelia veatchiana Bruce Albert 1982-4-17 78 Riverside Field north of Santa Rosa road, 5.7 miles east of Lake Mathews Road. Comment
  RSA192187  Microseris douglasii subsp. platycarpha E. W. Lathrop 1959-4-16 4446 B Riverside 14 miles W of Murrieta, Tenaja plateau. Comment
  UCR166809  Microseris elegans R. E. Riefner Jr. 2005-4-22 05- 240 Riverside Patton Rd. at Patterson Ave., SE of Winchester near San Diego Aqueduct 452 Comment
  RSA522706  Microseris heterocarpa Steve Boyd, Timothy S. Ross, Laurel Arnseth 1990-3-29 3893 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
  UCR102896  Microseris heterocarpa A. C. Sanders 1997-4-3 20167 Riverside Lake Skinner area, N edge of large clay patch adjacent to the E side of the Skinner entrance road, c. 1-2 km NE of Borel Road. 473 Comment
  POM8576B  Mimulus aurantiacus var. pubescens I. M. Johnston 1920-5-8 2282 Riverside Butte west of Lakeview. 610 Comment
  UC729965  Mimulus aurantiacus var. pubescens Carl B. Wolf 1932-5-24 3657 Riverside 1 mi above Fish Hatchery (n base of mts.); San Jacinto Mts., Snow Creek Canyon 792 Comment
  POM87  Mimulus aurantiacus var. puniceus C. F. Baker 1904-4-4 4152 Riverside Elsinore. Comment
  RSA500550  Mimulus aurantiacus var. puniceus Steve Boyd, Tim S. Ross, L. Arnseth 1989-6-4 3622 Riverside Vail Lake area, sandy benches of Kolb Creek drainage, S of Hwy 79. 488 Comment
  RSA0030785  Mimulus aurantiacus var. puniceus N. C. Cooper 1944-6-4 1321 Riverside Elsinore Mountain. Lookout at top. 1067 Comment
  SEINET3005076  Mimulus bigelovii G. Rink 2011-5-1 10514 Riverside North side of the Chuckawalla Mountains near Chuckawalla Spring 505 Comment
  CLARK-A1045-336  Mimulus brevipes George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Bautista Road; Hemet 15'Q Comment
  RSA156031  Mimulus clevelandii Peter H. Raven 1962-5-18 17759 Riverside [Santa Ana Mountains] Main Divide truck trail 2.9 miles south of Santiago Peak. 1235 Comment
  RSA526488  Mimulus floribundus Steve Boyd, Tim S. Ross 1990-5-11 4685 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  RSA586934  Mimulus palmeri D. L. Banks, Peter Morrell 1995-5-4 300 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia mtn., E of the Dripping Springs Alcove Area, along the Woodchuck Trail. 585 Comment
  RSA376134  Mimulus pilosus Robert F. Thorne, S. D. Boyd, Earl Lathrop 1985-7-18 61278 Riverside Sandia Canyon, De Luz-Murrieta Road 260 Comment
  UCR154630  Mimulus pilosus A. C. Sanders, Mike Misenhelter 2005-6-15 31005 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
  CSUSB1907  Mimulus puniceus R. Pirot 1975-4-20 Riverside Juniper Flats Road and Highway 74 at Homeland. 548 Comment
  POM17816  Minuartia douglasii P. A. Munz 1923-6-14 7086 Riverside Santa Ana Mountains: Glen Ivy Trail to Santiago Peak. 1463 Comment
  RSA600122  Mirabilis bigelovii var. retrorsa Louis C. Wheeler 1959-12-27 7639 Riverside Chuckwalla Mountains. White Cloud Mine. Comment
  UCR92195  Mirabilis californica D. L. Banks, Steve Boyd 1995-5-3 0274 Riverside Agua Tibia Mtns Watershed, Cleveland National Forest, Agua Tibia Wilderness Area, N slope of Agua Tibia Mtn., east of Dripping Springs Alcove, along lower alluvial benches of Arroyo Seco 512 Comment
  CSUSB572  Mirabilis californica var. californica James K. Ryan 1968-5-10 Riverside 1.5 miles east of UC, Riverside. Comment
  UCR215614  Mirabilis laevis Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 08 Riverside Peninsular Range, Box Springs Mountains, eastern edge of Riverside; Two Trees Canyon Trail near the trailhead 409 Comment
  CAS-BOT-BC434831  Mirabilis laevis var. retrorsa H. M. Hall 1905-4-1 5798 Riverside Colorado Desert. 10 mi. west of Coachella. 91 Comment
  PASA594  Mirabilis laevis var. retrorsa 1928-3-3 Riverside Hidden Springs, Colorado desert Comment
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Aug 27 2016
  HSC79251  Mirabilis laevis var. villosa G. K. Helmkamp 1984-5-2 - 24 Riverside Big Morongo Canyon, 3-3.5 mi. below the caretaker's house at the Big Morongo Preserve, Little San Bernardino Mtns. 550 Comment
  RSA777680  Mirabilis laevis var. villosa Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 980 Riverside Iron Mountains, on southwest side of mountains in drainage on either side of the road 419 Comment
  CAS-BOT-BC434880  Mirabilis multiflora var. pubescens H. M. Hall 1901-6-1 2162 Riverside San Jacinto Mountains. Vandeventer Flat 1386 Comment
  POM262902  Mirabilis multiflora var. pubescens J. C. Roos 1941-5-10 121 Riverside Pinyon Flats Camp, Santa Rosa Mountains. 1220 Comment
  CLARK-A1528-4223  Mohavea confertiflora John C. Roos 1958-3-29 Riverside Orocopia Mountains 304 Comment
  SD233949  Mohavea confertiflora Thomas Stoughton 2011-2-20 740 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 (Mortmar 7.5' USGS) 305 Comment
  SJSU11581  Mohavea confertiflora R. C. McGehee 1970-3-4 121 Riverside junction of Joshua Tree National Monument boundary & rd to Mission Sweet Mine Comment
  UCR213263  Mohavea confertiflora A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37450 Riverside Sonoran (Colorado) Desert, SE side of McCoy Mountains, upper part of wash c. 4 mi. NW of Blythe Airport, c. 4 mi. ENE of McCoy Peak 195 Comment
  UCSB31044  Mohavea confertiflora Steele, R. 1977-3-26 Riverside Box Cyn Road, 5 mi SW of Interstate 10 on 365 Comment
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Dec 2 2014
  RSA0014892  Mohavea confertiflora Geo. Cantwell 1935-4-8 s.n. Riverside McCoy Springs, McCoy Mnts. [NW of Blythe] Comment
  UCR132926  Monardella linoides subsp. linoides John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  CAS-BOT-BC215498  Monardella nana Elizabeth McClintock 1941-7-22 130 Riverside On slope south of Strawberry Creek and west of Domengonio Flats, San Jacinto Mts. Comment
  UC1499820  Monardella nana Elizabeth McClintock 1941-7-21 123 Riverside San Jacinto Mts. Trail to Hidden Lake, a short distance below Willow Creek. Comment
  CLARK-A1528-579  Monardella nana subsp. arida C. M. Flanagan 1973-5-12 OO 405 Riverside San Jacinto Mountains 1097 Comment
  RSA651651  Monardella nana subsp. arida Elizabeth McClintock, M. McClintock, D. Weiner 1941-7-11 99 Riverside Black Mountain, 3/4 mile beyond the snow gate. Comment
  RSA750393  Monardella nana subsp. arida Elizabeth McClintock 1941-5-31 47 Riverside About 5 miles from the Anza Monument turn off. Comment
  UCR221479  Monardella nana subsp. arida Elizabeth McClintock 1941-5-31 047 Riverside Peninsular Range; San Jacinto Mtns. Region, [Terwilliger Valley] 5.5 miles from [south of] turnoff to Anza Monument [from modern Hwy 371, toward Coyote Canyon] 1180 Comment
  CHSC67961  Monardella nana subsp. leptosiphon Alison Graff 1993-6-24 M- 10 Riverside San Bernardino National Forest, San Jacinto Mtns. 1.45 mi in on Black Mtn. Rd. (FS 4S01) from Hwy. 243. Comment
  RSA750293  Monardella nana subsp. tenuiflora Elizabeth McClintock, D. Weiner 1941-7-11 101 Riverside Black Mt. 2 miles beyond the snow gate. Comment
  UCR221465  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-13 112 Riverside Peninsular Range; San Jacinto Mtns., near sawmill at Domengonio [Domenigoni] Flats [Strawberry Valley near Camp Emerson & USC Idyllwild campus], on old Idyllwild road [Tollgate Rd.] 1555 Comment
  UCR132738  Monardella robisonii A. C. Sanders, Mark A. Elvin, Jane Rodgers 2001-5-11 24255 Riverside Mojave Desert, Joshua Tree National Park, Jumbo Rocks 1341 Comment
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Apr 21 2013
  POM14620  Monolepis nuttalliana P. A. Munz, D. D. Keck 1922-4-8 4742 Riverside 1/2 miles east of Indio. -15 Comment
  RSA562426  Monolopia lanceolata D. Bramlet 1993-4-13 2325 Riverside Adjacent of the existing dirt access rd., 610 m N of Cajalco Rd, in the ''Cajelco Bend'' area. This site some 1.1 km W of Lake Mathews Drive. 433 Comment
  JOTR35477  Monoptilon bellidiforme Harding, Mitzi, M. Wheeler, K. Callahan, C. Barrows 2013-4-26 80 Riverside Joshua Tree National Park. Little San Bernardino Mtns; W of Juniper Flats Comment
  POM304729  Monoptilon bellioides Henry J. Ramsey, Henry J. Ramsey 1939-11-28 167 Riverside 10 miles east of Indio. Comment
  UC1051456  Monoptilon bellioides Herbert L. Mason 1952-4-7 14210 Riverside Palm Springs Palm Canyon Comment
  SD93543  Muhlenbergia asperifolia Helen V. Witham 1975-9-13 1875 Riverside bed of Lily Creek, Idyllwild County Park 1559 Comment
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Sep 9 2014
  SDSU13960  Muhlenbergia microsperma Michael G. Simpson 2000-5-13 2117 Riverside Santa Margarita Ecological Reserve, ca. 100 feet from Northside field station. 366 Comment
  UCR260295  Muhlenbergia microsperma A. C. Sanders, Jim Malusa 2015-3-9 41361 Riverside Sonoran (Colorado) Desert, 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
  RSA597519  Muhlenbergia richardsonis L. C. Wheeler 1945-10-6 6136 Riverside San Jacinto Mountains. Head of west fork of Snow Creek. 2377 Comment
  HSC78733  Muilla maritima A. C. Sanders, T. Glenn 1983-4-17 3731 Riverside Mesa de Colorado, Santa Ana Mtns., 5 mi. SW of Murrieta 612 Comment
  UC501587  Muilla maritima Frank W. Peirson 1922-4-29 2942 Riverside 2 mi s Lake Elsinore (along boulevard) 365 Comment
  PASA2571  Myosurus aristatus Frank W. Peirson 1922-5-20 3035 Riverside Helmet Valley, San Jacinto Mtns. 1386 Comment
  UCR112324  Myosurus minimus A. C. Sanders, K. C. Rose 1998-5-21 21861 Riverside Hemet, Alkaline flats west of town, east of the canal, south of Hwy 74 (Florida) and c. 1/4 mi. west of Warren Rd. 457 Comment
  UCR83570  Myosurus minimus subsp. apus Scott D. White 1993-3-12 1142 Riverside San Jacinto Valley, between aqueduct and Warren Rd. 457 Comment
  SEINET3004914  Myriophyllum spicatum G. Rink, M. Baker, T. Thomas, M. Honer, A. Karl 2010-10-2 10333 -a Riverside Canal two miles north of Blythe. 70 Comment
  SEINET3099344 Image available Myriophyllum spicatum G. Rink, M. Baker, T. Thomas. M. Honer, A. Karl 2010-10-2 10333 a Riverside Private. Canal two miles north of Blythe. 70 Comment
  SBBG35144  Nama demissa T. L. Secrest 1948-4-7 Riverside near Desert Hot Springs 213 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
  UCR157356  Nama stenocarpa Chris E. True, Robert Cox 2005-7-21 s.n. Riverside San Jacinto Valley, Mystic Lake, lakeshore west of Bridge Street intersection with Gilman Springs Road 436 Comment
  RSA757987  Nassella cernua Doug Goldman 2005-5-11 3289 Riverside Garner Valley, just north of the village of Thomas Mountain, about 0.1 miles northwest of Morris Ranch Road and about 0.2 miles northeast of Route 74. San Bernardino National Forest. 1378 Comment
  SEINET239060  Nassella cernua Mitch Provance 2000-4-8 2007 Riverside Jurupa Mountains: S extension of 'Rattlesnake Mt.' <100m W of Peak 1739. (Fontana 7.5' Q.) 488 Comment
  RSA179527  Nassella pulchra E. W. Lathrop 1964-5-10 5374 Riverside 10 miles west of Murrieta. 610 Comment
  UCR86986  Navarretia atractyloides Jack Easton 1993-5-27 s.n. Riverside Murrieta Oaks, 3 mi. (airline) NW of Murrieta Hot Springs, W side of Hwy 215 451 Comment
  UCR85575  Navarretia fossalis Julie A. Greene 1993-5-12 1299 Riverside Perris-Aguanga Basin region, South of gated West-East road, east of Davis Rd. 433 Comment
  SEINET235610  Navarretia hamata A. C. Sanders 1994-5-30 14591 Riverside San Bernardino Mountains: NNE of Beaumont at Highland Springs hills N of the end of Bellflower Ave. at Dutton St. 950 Comment
  RSA439263C  Nemacladus glanduliferus Anstruther Davidson 1903-5-3 s.n. Riverside Thermal. Comment
  POM316395  Nemacladus glanduliferus var. glanduliferus P. A. Munz, D. D. Keck 1922-4-9 4824 Riverside South base of Eagle Mountains 3 miles NE of the 'Hayfields' 213 Comment
  LA204531  Nemacladus gracilis Harlan Lewis; Carl Epling 1941-5-2 Riverside Joshua Tree National Monument, Pinto Basin Comment
  SEINET10458391  Nemacladus longiflorus Barbara J. Ertter, Jeffrey Strachen 1979-6-26 Ertter 2976 Riverside Kenworthy Forest Station on Rt. 74 in Garner Valley, San Jacinto Mountains. T6N R3E Sec. 25 Comment
  RSA0126449  Nemacladus longiflorus var. longiflorus Mary F. Spencer 1921-7-7 1661 Riverside Tahquitz Trail. Idyllwild. San Jacinto Mtns region. 1829 Comment
  RSA0124735  Nemacladus ramosissimus Duncan S. Bell, LeRoy Gross 2016-3-31 9193 A Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 6 air miles southeast of the summit of Martinez Mountain. 492 Comment
  UC126891 Image available Nemacladus rubescens H. M. Hall 1905-4-17 5819 Riverside e base Indio Mt.; Colorado Desert; Indio Mt., Colorado Desert, Riverside Co. 150 Comment
  UCR204227  Nemacladus rubescens Valerie Soza, J. M. Porter, G. D. Wallace 2001-4-2 1085 Riverside Transverse Ranges, Little San Bernardino Mountains, Big Morongo Wash 473 Comment
  CLARK-A1528-2986  Nemophila menziesii John C. Roos 1952-3-1 5361 Riverside Reche Canyon 457 Comment
  UCR139032  Nemophila menziesii var. menziesii D. L. Banks, V. W. Steinmann 1997-3-13 1449 Riverside NW Palomar Mtns, Agua Tibia Mtns: Redhawk Housing Development, north of the Pechanga Indian Reservation in the hills south of the intersection of Marge Place and Tehachapi Pass (S of Redhawk Parkway) 378 Comment
  CLARK-A1528-549  Nemophila pedunculata C. M. Flanagan 1973-4-26 OO 311 Riverside Morongo Indian Reservation 914 Comment
  UCR119803  Nicotiana attenuata A. C. Sanders, Mitch Provance 1999-9-26 23093 Riverside San Jacinto Mountains, Lake Hemet, north shore at FS day use area 1323 Comment
  UCR20745  Nicotiana glauca A. C. Sanders, Steve Boyd 1980-5-2 1441 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  OBI2986  Nicotiana obtusifolia Lewis S. Rose 1967-12-19 67182 Riverside La Quinta 15 Comment
  RSA659516  Nicotiana obtusifolia J. C. Roos 1966-2-5 s.n. Riverside Pushawalla Wash near 1000 Palms, Indio Hills. Comment
  SBBG32354  Nicotiana obtusifolia L. S. Rose 1967-12-19 Riverside La Quinta 15 Comment
  RSA0018752  Nicotiana obtusifolia L. S. Rose 1967-12-19 s.n. Riverside La Quinta. 15 Comment
  RSA688837  Nicotiana quadrivalvis Scott D. White, Michael Honer 2003-6-17 9543 Riverside S Perris Basin: Murrieta. Interstate 215 / Clinton Keith interchange. 457 Comment
  CDA37838  Nolina parryi Mike Lahti 2012-5-19 PDR# 1590370 Riverside Pinyon Pines; Highway 74 & Pinyon Flats Road, San Bernardino National Forest, near the U.S.F.S. Pinyon Flats campground. 0 Comment
  UCD139081  Nolina parryi T. Scott; A. Townesmith, K. M. Meyer 2007-3-18 137 Riverside San Bernardino National Forest. San Jacinto Ranger District, about 0.2 mi. along Pinon Flats Transfer Station Rd. off Rte. 74. 1228 Comment
  RSA781799  Oenothera Duncan S. Bell 2010-5-1 881 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
  SEINET7042765  Oenothera W. P. Vestal, A. G. Vestal 1955-3-25 3476 Riverside Adenostoma chaparral, Lakeview Mountains on Juniper Flat Road. Lakeview quadrangle UTM Zone 11, 489935mE, 3735502mN. Comment
  CDA38122  Oenothera californica T. C. Fuller 1958-9-23 2196 Riverside 3 miles east of Anza. 0 Comment
  LA206158  Oenothera deltoides Charles Bogert; 1932-4-17 4001 Riverside Indian Wells Comment
  SEINET7249060  Oenothera deltoides Teresa B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-1 Riverside Comment
  JOTR35386  Oenothera deltoides subsp. deltoides Harding, Mitzi, J. Hoines, E. Kramer 2012-2-2 174 Riverside Joshua Tree National Park. eastern Eagle Mountains; near Pinto Wells, sand ramps and large active wash between sand hills and basalt outcrops 286 Comment
  POM200877  Oenothera deltoides subsp. deltoides Carl B. Wolf 1932-4-27 3065 Riverside Colorado Desert, Chuckwalla Valley, 16 mi. east of Desert Center. 122 Comment
  POM355584  Oenothera deltoides subsp. deltoides E. S. Spalding 1926-2-13 s.n. Riverside Colorado Desert. Box Canon on Blythe Road. Comment
  RSA146053  Oenothera deltoides subsp. deltoides William M. Klein 1959-4-6 952 Riverside U,S. Hwy 60-70, about 21 miles west of Blythe. 137 Comment
  UCR145793  Oenothera elata subsp. hookeri June Latting 1977-11-6 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Oasis de Los Osos, Snow Creek 488 Comment
  CLARK-A1045-327  Oenothera micrantha var. exfoliata George K. Helmkamp 1977-3-20 Riverside Cabazon dry wash south of Cabazon; ; Cabazon 7.5'Q Comment
  CLARK-A1528-2648  Oenothera speciosa Charles S. Papp 1965-6-16 860 Riverside Highgrove Comment
  SEINET7259361 Image available Oligomeris linifolia Leila M. Shultz, John S. Shultz 1985-1 5323 Riverside Chuckawalla Mountains at Corn Springs 518 Comment
  POM348467  Olneya tesota Robert M. Perkins 1937-3-15 388 Riverside 20 miles east of Desert Center. Comment
  UC61577  Olneya tesota Miss Mary McKibben 1904-1 Riverside e of Mecca; Colorado Desert 457 Comment
  SEINET241485  Oncosiphon piluliferum A. C. Sanders, Mitch Provance 2001-5-8 24210 Riverside Perris-Aguanga region: Moreno Valley, along I-215 just S of March Field Museum, 0.7 mi. S of Van Buren Blvd. 465 Comment
  UCD134655  Oncosiphon piluliferum A. C. Sanders; Mitch Provance, T. B. Salvato 2001-5-8 24210 Riverside Perris-Aguanga Region: Moreno Valley, along I-215 just south of the March Field Museum, 0.7 mile south of Van Buren Blvd. 465 Comment
  UCR235523  Oncosiphon piluliferum R. E. Riefner Jr. 2009-2-25 09- 20 Riverside Peninsular Range, city of Lake Elsinore, south side of Temescal Wash, west of Hwy 74, vicinity of Bromley Ave. at Bennett St. 380 Comment
  SEINET8674695  Opuntia X vaseyi Rosemary Trelease, Nancy Foisy, Joni Ward 2004-4-27 54525 Riverside Originally received into the Desert Botanical Garden living collection as a plant collected by Bruce Parfitt 3503 19 April 1986 with R. Anthony and A. Sanders from California, Riverside County, Pauba Valley, Highway 79 crossing of Temecula River (or Creek), 4.6 miles east of junction with road to Pala in the vicinity of the given coordinates as determined by Google Earth; collector's notes: Spiny and spineless pads on same plant; sage scrub hillside E of creek and S of highway. 1000 Comment
  POM316443  Opuntia basilaris Mark Parratt 1962-2-24 116 Riverside 7-8 miles up state Hwy 74 from Palm Desert. 701 Comment
  UCR178139  Opuntia basilaris Tracy Tennant 1998-4-30 MOR- 069 Riverside San Bernardino Mtns., Morongo Indian Reservation, hills west of the mouth of Potrero Canyon, 0.2 mi. NE of hill 3030 854 Comment
  SEINET9037813 Image available Opuntia basilaris var. basilaris M. A. Baker, Michelle Cloud-Hughes 2015-1 18416 Riverside 1.5km north of the historic site of Whitewater, 16km NW of central Palm Springs, low slope to the west side of wash, granitic silt, fine sand, and gravel 474 Comment
  POM313595  Opuntia echinocarpa J. W. Toumey 1895-04 s.n. Riverside Banning. Comment
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Mar 21 2011
  POM311558  Opuntia phaeacantha Lyman Benson 1963-7-13 16390 Riverside San Jacinto Mountains. Hillside 3 miles north of Gilman Hot Springs. Comment
  RSA0097156  Opuntia phaeacantha Marc A. Baker, Michelle Cloud-Hughes 2015-6-23 18358 Riverside 2.5 km north of central Banning, 39 km NW of central Palm Springs. 841 Comment
  UCR75963  Orcuttia californica D. E. Bramlet 1992-4-29 2253 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
  CAS-BOT-BC355579  Oreostemma alpigenum var. andersonii S. B. Parish; W. F. Parish 1881-8-1 958 Riverside Tockwich [Tahquitz], San Jacinto Mts. Comment
  RSA0042859  Orobanche cooperi Duncan S. Bell, Deidre Conocchioli 2014-3-18 6262 Riverside Orocopia Mountains; southern/central section of range; approximately 0.75 air mile northwest of Gucci Spring. 483 Comment
  RSA0072129  Orobanche cooperi Robert F. Thorne, Avi Shmida, Robert Whittaker 1978-4-23 52060 Riverside Palms to Pines Highway. Comment
  UCR24887  Orobanche fasciculata A. C. Sanders 1980-7-18 1635 Riverside San Jacinto Mtns., Thomas Mountain: Thomas Mountain Campground to the summit at the lookout 2073 Comment
  RSA402104  Orthocarpus purpurascens Bonnie C. Templeton 1930-4-9 1070 Riverside Moreno Grade, S.W. of Beaumont 700 Comment
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Mar 20 2011
  RSA458998  Osmorhiza berteroi Anstruther Davidson 1876-7-7 s.n. Riverside San Jacinto. 2896 Comment
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Oct 21 2010
  UCR34981  Osmorhiza brachypoda L. B. Ziegler 1972-4-7 447 Riverside San Jacinto Mtns., canyon on N slope Baldy Mtn. 1646 Comment
  RSA593990  Oxalis pes-caprae D. L. Banks, Elizabeth Hedge Banks 1996-5-2 944 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
  UC218234  Oxyria digyna P. A. Munz 1922-9-7 6406 Riverside shelter of rocks on n side summit of San Jacinto (summit of San Jacinto); San Jacinto Mts., summit of San Jacinto 3276 Comment
  UCR63617  Oxytheca trilobata Chet McGaugh 1990-8-8 s.n. Riverside SW Durasno Valley, south of town of Anza 1372 Comment
  RSA594000  Paeonia californica D. L. Banks, Elizabeth Hedge Banks 1996-5-2 932 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve. Along the broad alluvial benches just to the SE of the gate to the Preserve. 448 Comment
  CAS-BOT-BC327892  Palafoxia arida M. E. Jones 1884-5-3 s.n. Riverside Needles Comment
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Sep 2 2017
  POM363743  Palafoxia arida var. arida M. B. Dunkle 1935-3-17 4401 Riverside Desert Center. 610 Comment
  RSA678977  Panicum acuminatum var. acuminatum Scott D. White, Michael Honer 2003-6-3 9494 Riverside Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. 335 Comment
  RSA314484  Panicum capillare R. F. Thorne, K. L. Wright, R. K. Benjamin 1982-10-8 55367 Riverside Mouth of Whitewater Canyon near Whitewater Post Office in sandy wash between old and new highway bridges and along Whitewater River. 412 Comment
  SD262333  Papaver californicum Mitch Provance, Matt K. Beyers, John Hazlett, Douglas Gordon-Blackwood. 2017-4-14 417 27 Riverside Peninsular Ranges: Sedco Hills (east end), along transmission road, from 0.2 mi W of Beverly St. to the vicinity of intersection with Green Meadow Way (Romoland 7.5'Q) 591 Comment
  RSA673548  Parietaria hespera var. californica Scott D. White, Tasha La Doux 2000-4-20 7704 Riverside South of Hemet: 'Gibbel Flat' in the Santa Rosa Hills. 610 Comment
  UCR196357  Parkinsonia florida Naomi Fraga, Lisa Rojas 2005-2-10 1383 Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 365 Comment
  RSA704040  Parosela spinosa Anonymous s.n. Riverside Colorado Desert. Comment
  RSA0049953  Pectis papposa A. C. Sanders, T. B. Salvato 2012-10-12 40436 Riverside Chuckwalla Valley, along Wileys Well Rd. c. 3 miles north of Wileys Well/ Bradshaw Trail. 151 Comment
  SEINET3828352  Pectis papposa Amber Swanson 2011-1 652 Riverside Around the Hayfields ext N of Hwy I-10 UTM Zone 426 Comment
  UCR233940  Pectis papposa Duncan S. Bell 2011-10-22 2987 Riverside Sonoran (Colorado) Desert, Arica Mountains, west side of range, c. 2.6 air miles west of Priests Well, c. 6.8 air mi. SW of Rice 437 Comment
  CAS-BOT-BC355869  Pectis papposa var. papposa Ira L. Wiggins 1934-9-4 8035 Riverside Colorado Desert 31 miles west of Blythe on Mecca-Blythe highway 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
  RSA779010  Pectocarya heterocarpa Duncan S. Bell 2010-4-1 644 A Riverside Arica Mountains: collecting near the Atchinson, Topeka, and Santa Fe railroad tracks approximately 3 air miles east of Priest Well, or approximately 4.3 air miles southeast of the ghost town of Rice. 216 Comment
  UCR89710  Pectocarya heterocarpa J. M. Stewart 1991-4-7 777 Riverside Sonoran (Colorado) Desert, Pinto Wash south of Joshua Tree National Monument, Eagle Mountains Comment
  PASA1954  Pectocarya linearis Sally Ellis 1940-3-17 Riverside Dripping Springs Comment
  POM368730  Pectocarya linearis Ora M. Clark 1929-3-2 1957 Riverside Near Elsinore. Comment
  UCR114826  Pectocarya linearis Mitch Provance, Seychelle Provance 1998-2-17 86 Riverside Jurupa Mountains, Jensen Quarry; Sunnyside area on W side of Sierra Blvd, c. 0.2 miles NW of the corner of Scenic Dr. and 34th St. 348 Comment
  UCR159762  Pectocarya linearis Scott D. White 1999-5-2 7291 Riverside Peninsular Ranges: Perris-Aguanga Basin region, Perris Basin: Perris / Sun City area. Just east of Goetz Rd. and south of Ethanac Rd., c. 1.5 - 2 mi west of I-215 freeway 442 Comment
  UCR232790  Pectocarya linearis John F. Green 2008-4-15 0408- 25 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
  UCR86877  Pectocarya linearis A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16243 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
  UCR251703  Pectocarya linearis subsp. ferocula T. B. Salvato 2014-4-9 7846 Riverside Perris-Aguanga Basin, Menifee, c. 4 mi southeast of Canyon Lake, northeast corner of Bundy Canyon Road and Sunset Avenue 534 Comment
  RSA613460  Pectocarya penicillata D. L. Banks, Victor Steinmann 1997-3-13 1432 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
  UCR41596  Pectocarya platycarpa A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6123 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  RSA799078  Pectocarya recurvata Sarah J. De Groot, Jessica Chu, Loraine Washburn 2013-3-22 6874 Riverside South side of Joshua Tree National Park, Cottonwood Spring 905 Comment
  UCR97449  Pectocarya recurvata A. C. Sanders, Pam MacKay, Tim Thomas, G. K. Helmkamp 1997-2-8 19678 Riverside Colorado Desert/San Jacinto Mtns:, Palm Springs area, Tahquitz Debris Basin at mouth of Tahquitz Canyon 183 Comment
  UCR153362  Pectocarya setosa LeRoy Gross, Valerie Soza 2003-5-8 826 Riverside Peninsular Ranges; San Jacinto Mountains region, North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 777 Comment
  UCSB18151  Pediomelum californicum Gates, Mary 1964-5-17 Riverside Pinyon Flats Campground, State Highway 74, 25 miles SE of Indio 1219 Comment
  CLARK-A1528-3592  Pellaea andromedifolia John C. Roos 1952-4-29 5597 Riverside Reche Canyon 457 Comment
  RSA686923  Pellaea mucronata T. R. Pray 1960-3-4 1648 Riverside Andreas Canyon Comment
  UCR116901  Pellaea mucronata A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-8 24196 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
  UC1874932  Pellaea mucronata subsp. mucronata Ruth Kirkpatrick 1952-4-25 1152 Riverside Along Hwy 243, 2.5 road mi from Banning. Comment
  POM11163  Pellaea mucronata var. mucronata P. A. Munz 1922-7-1 5938 Riverside Santa Rosa Mountains: Old Nicholas Canyon. 1463 Comment
  POM50384  Pellaea mucronata var. mucronata W. W. Eggleston 1924-3-10 19533 Riverside San Jacinto Station, Cleveland Forest 600 Comment
  RSA543733  Pellaea mucronata var. mucronata Steve Boyd, Timothy S. Ross, Mike Hammitt 1991-5-2 6068 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
  RSA686887  Pellaea mucronata var. mucronata Norman C. Cooper 1944-5-21 1305 Riverside San Jacinto Mountains, West side 915 Comment
  RSA771629  Pellaea mucronata var. mucronata Orlando Mistretta, Duncan Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4995 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
  UC669245  Pellaea mucronata var. mucronata Annie M. Alexander and Louise Kellogg 1941-3-23 1993 Riverside Tahquitz Canyon Palm Springs 170 Comment
  UCR234812  Pennisetum setaceum Jim Andre, Glenn L. Clifton 2011-2-22 17477 Riverside Coachella Valley, 1.2 mi due south of Windy Point (at Hwy 111, just southwest of 'The Cove' housing development near Blaisdell Creek, at base of San Jacinto Mountains 320 Comment
  UCR52467  Pennisetum setaceum D. C. Hawks 1986-4-17 s.n. Riverside Sonoran (Colorado) Desert, Whitewater River Channel, 1 mi. south of Hwy I-10 and 2 mi. west of Indian Ave 259 Comment
  RSA583481  Penstemon X parishii Steve D. Boyd 1995-5-13 8513 Riverside along the Main Divide Rd., west of Morrell Potrero, 4 mi. southeast of Highway 74. Comment
  SFV17411  Penstemon X parishii M. S. Valenzuela, P. Wilson, G. Aldridge, H. Crandall 1998-6-6 76 Riverside Highway 74 near mile marker 73.56. 1220 Comment
  NY583788  Penstemon centranthifolius S. D. Boyd 1992-4-15 6882 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Bluewater Canyon along Bluewater Tr. downstream to the confluence with San Mateo Creek. 335.3 Comment
  UCR110963  Penstemon centranthifolius George K. Helmkamp 1998-6-27 4091 Riverside Santa Rosa Mtns., 3.3 miles south of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail, FS Rd. 7S02), in vicinity of an unnamed spring 1585 Comment
  UCD124053  Penstemon clevelandii Mitch Provance; Kerry Knudsen, Petra Wester 2004-5-8 9020 Riverside Santa Rosa Mountains: ca. 0.05 mile south of Santa Rosa Mt. Road from Hwy 74. 1402 Comment
  UCSB37946  Penstemon clevelandii Carlson, B. 1978-4-22 Riverside Santa Rosa Mtns; 13.5 mi. S. of Palm Desert; along Hwy 74 883 Comment
  RSA412500  Penstemon clevelandii subsp. connatus N. C. Cooper 1944-5-20 2623 Riverside Palms to Pines Highway, San Jacinto Mountains. 915 Comment
  UCR275310  Penstemon heterophyllus var. australis J. Dansie 2016-5-25 36 Riverside San Bernardino Mtns., Cherry Valley, off Edgar Canyon Road 1215 Comment
  NY650693  Penstemon rostriflorus E. K. Balls 1953-8-19 18544 Riverside Above Santa Rosa Spring, Santa Rosa Peak 2133.6 Comment
  RSA733710  Penstemon spectabilis R. H. McArthur 1934-5-6 s.n. Riverside East end Ortega Highway. Roadside. Comment
  SD136744  Penstemon spectabilis Steve Boyd, Tim Ross 1992-5-15 7407 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
  RSA401806  Penstemon spectabilis var. spectabilis Robert Gustafson 1983-4-18 2498 Riverside Clinton Keith Rd. about 2.5 miles from its junction with Hwy 15, eastern slopes of the Santa Ana Mtns. 457 Comment
  JEPS21330  Pentachaeta aurea W. L. Jepson May 17 1901-Jun 1 1901 1321 Riverside Thomas Valley Comment
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Feb 16 2013
  HSC47345  Peritoma arborea R. W. Spjut, Judy Adams 1978-11-22 5236 Riverside Colorado Desert, N of N Palm Springs along Indian Ave. 0 Comment
  RSA747729  Perityle emoryi Scott D. White, Justin M. Wood 2009-3-24 12563 Riverside Western foothills of Mecca Hills, +/- 0.5 air mile east of the Coachella Canal and 4 air miles S of the I-10 Freeway. 21 Comment
  UCR102743  Perityle emoryi B. G. Pitzer 1998-2-1 3441 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  HSC80299  Persicaria punctata Steve Boyd 1985-7-23 1014 Riverside 8 mi. W of Rancho California, Sandia Creek 305 Comment
  RSA0107431  Petalonyx thurberi Duncan S. Bell 2009-8-15 423 Riverside West side of the Arica Mountains. 323 Comment
  UCR169923  Petalonyx thurberi Scott D. White, Jennifer H. Jones 2005-4-21 10947 Riverside Sonoran Desert, Eastern Coachella Valley. Bajada beneath Mecca Hills, just east of Coachella Canal 49 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
  JOTR36012  Peucephyllum schottii Harding, Mitzi, T. Herskovits 2012-3-16 219 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  RSA727082  Peucephyllum schottii Naomi Fraga, Lisa Rojas 2005-2-10 1375 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 365 Comment
  UC566662  Peucephyllum schottii Margaret Stason 1927-3-12 Riverside Painted Canyon Colorado Desert Comment
  UCR279243  Peucephyllum schottii A. C. Sanders, Jim Malusa 2017-1-14 42656 Riverside Sonoran (Colorado) Desert, Salt Creek wash, where it passes bend in old Kaiser RR tracks, c. 6 miles east of Dos Palmas 119 Comment
  RSA94108  Peucephyllum schottii F. W. Peirson 1921-3-23 2753 Riverside Deep Canyon, north base of Santa Rosa Mts. 335 Comment
  RSA27430  Phacelia ambigua C. L. Hitchcock 1940-3-30 5877 Riverside Cottonwood Spring. Comment
  RSA600  Phacelia brachyloba J. T. Howell 1927-8-2 561 Riverside Near Strawberry Valley, Mt. San Jacinto. 1677 Comment
  RSA0018546  Phacelia campanularia Joan Stewart 2004-4-24 s.n. Riverside Lost Horse Campground, JTNP [Joshua Tree National Park] Comment
  UCR274805  Phacelia campanularia subsp. campanularia Aaron C. Sedgwick, David Fraker 2012-3-28 37 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road. c. 6 miles south of Hwy I-10 323 Comment
  RSA74497  Phacelia campanularia subsp. vasiformis F. W. Peirson 1928-4-24 7896 Riverside Below Cottonwood Spring, northern edge of Colorado Desert. Comment
  UC73692  Phacelia cicutaria var. hispida Miss M. A. King 1893-1 Riverside Menifee Comment
  UCR103479  Phacelia ciliata D. E. Bramlet 1993-4-3 2309 Riverside South Cajalco Bend, c. 61m south of Cajalco Road, at location 3.2 km east of intersection of Cajalco Road and La Sierra Ave., c. 152m east of intersection with old Monument Peak access road 439 Comment
  CSUSB137  Phacelia crenulata R. A. Clark 1966-3-5 3566 6 Riverside 5 miles east of Mecca, Ca., on State Highway 195, on man-made dike. -57 Comment
  SD215565  Phacelia crenulata var. ambigua W. Wisura, J. Dolan and M. Wall 1992-3-24 4619 Riverside 5.5 miles northeast of Mecca on Box Canyon Road. Comment
  UCR72170  Phacelia crenulata var. ambigua Theo Glenn 1991-5-7 91- 96 Riverside Sonoran (Colorado) Desert, Big Maria Mtns, north of Blythe 365 Comment
  SEINET4681914  Phacelia crenulata var. minutiflora Chuck Hughes 2009-3-23 66 Riverside South of Highway 62 near the abandoned Desert Center Airport. Near city of Rice.; 0 219 Comment
  UCR245953  Phacelia crenulata var. minutiflora Duncan S. Bell 2009-3-7 18 Riverside Arica Mountains, ridgeline of range just north of the summit along the border of the Palen/McCoy Wilderness Area 614 Comment
  RSA0120440  Phacelia cryptantha Duncan S. Bell, LeRoy Gross 2016-5-18 9597 Riverside Santa Rosa Mountains; west side of Martinez Mountain; hills in the northern section of Little Pinyon Flat. 1316 Comment
  UC922689  Phacelia cryptantha Annie M. Alexander and Louise Kellogg 1940-3-21 889 Riverside 20 mi s 29 Palms; Barker Dam 1322 Comment
  SBBG14721  Phacelia curvipes P. H. Raven 1962-5-18 17756 Riverside Rd to Indian Hill Cyn 0.6 mi E of Santiago Pk 1615 Comment
  UC64055  Phacelia curvipes H. M. Hall May 1899 1170 Riverside El Toro Peak San Jacinto Mountains 2133 Comment
  UCR169392  Phacelia curvipes T. B. Salvato, John F. Green 2004-5-27 595 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
  HSC84067  Phacelia distans H. A. Heaton 1987-5-2 15 Riverside San Jacinto Mtns., 3.5 mi. up Bee Canyon from Hwy. 74 854 Comment
  RSA525673  Phacelia distans Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4544 Riverside San Jacinto Mountains, Vail Lake area, rolling terrain at jtn of Hwy R3 and Powerline Road, NE of the lake. Comment
  RSA559958  Phacelia distans Steve Boyd, Orlando Mistretta 1992-4-23 7069 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Along San Mateo Creek from Riverside County line, following San Mateo Trail upstream to the confluence with Bluewater Canyon. 244 Comment
  UC2015576  Phacelia distans A. C. Sanders with G. Helmkamp & P. MacKay 1995-3-12 16090 Riverside Coachella Valley: alluvial slopes at the foot of Rabbit Peak, Santa Rosa Mtns., below Sheep Canyon. Comment
  UC663064  Phacelia fremontii James E. Cole 1941-5-2 673 Riverside Lost Horse Valley Joshua Tree National Monument 1310 Comment
  SD255773  Phacelia imbricata Mitch Provance 2012-5-24 512 06 Riverside San Bernardino Mountains; Banning, foothills and alluvial fan near bordeer with Beaumont, NE of the intersection of Highland Springs Ave. and Silson St. 868 Comment
  JEPS1111  Phacelia imbricata subsp. patula Carl V. Meyer 1928-7-30 592 Riverside Saunders Meadow San Jacinto Mts. 1706 Comment
  UC1979608  Phacelia imbricata subsp. patula D. L. Banks, Victor Steinmann 1995-7-10 0742 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along the Wildhorse Trail, S of lower Arroyo Seco, NW of Wildhorse Peak. Comment
  RSA212890  Phacelia lemmonii Babs Kobaly 1969-6-24 s.n. Riverside Upper Big Morongo Canyon, Riverside County. Comment
  CLARK-A1703-1208  Phacelia minor Charlotte Stocks 1962-5-14 Riverside Whitewater Canyon Comment
  UC1184079  Phacelia minor Peter M. Ray 1949-3-12 1353 Riverside 2 mi w Whitewater (n side of valley, in draw and below); Coachella Valley 457 Comment
  UC410495  Phacelia minor Mrs. E. C. Van Dyke 1928-5-28 Riverside Banning Comment
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Mar 13 2011
  UCR177025  Phacelia minor Tracy Tennant 1998-6-5 1030 Riverside Peninsular Range, east side of Roundtop Mtn. and along Sage Road 732 Comment
  RSA428263  Phacelia minutiflora N. C. Cooper 1949-4-8 3293 Riverside Desert Center. 610 Comment
  RSA480099  Phacelia neglecta Steve Boyd, L. Arnseth, S. Meury, D. Nordin, Tim Ross 1988-3-10 2188 Riverside Sonoran (Colorado) Desert NW end McCoy Mtns, NW of Blackjack Mine. 400 Comment
  RSA703744  Phacelia neglecta LeRoy Gross 2005-3-3 1564 Riverside Palen Mountains, south side. Near end of old prospect road., [From] Near 33.71244N, 115.11171W. to 33.72053N, 115.11051W. 207 Comment
  JOTR31229  Phacelia pedicellata La Doux, Tasha, Alice Miller, G. Clifton 2009-4-9 2013 Riverside Joshua Tree National Park. Eagle Mountains; (Stop 4) basalt rocky slopes above Pinto Wash, sparsely vegetated 377 Comment
  UCR123875  Phacelia ramosissima var. latifolia Steven R. Hill 2001-5-3 33662 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
  UCSB16948  Phacelia rotundifolia Otey, D. 1963-5-5 Riverside 10.8 miles southwest of Palm Desert on State Highway 74 914 Comment
  RSA0093148  Phacelia umbrosa T. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-23 3708 Riverside San Jacinto Mountains: San Jacinto River Canyon, along south Fork Trail c. halfway between Hwy 74 and the bottom of the canyon. 1110 Comment
  UCR265849  Phalaris minor Mitch Provance 2013-4-8 413- 05 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  CAS-BOT-BC135072  Phoradendron californicum Del Wiens 1955-10-17 960 Riverside Palms to Pines Highway between Palm Springs and Keen Camp, State Hwy. 74 Comment
  RSA0125369  Phoradendron californicum Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8764 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting near the Martinez Slide, approximately 4 air miles northeast of the summit of Martinez Mountain. 264 Comment
  UC61548  Phoradendron californicum Miss Mary McKibben Riverside Mecca -60 Comment
  UCD84929  Phoradendron californicum Chuck Hughes 2010-3-22 201 Riverside Edge of Rice-Midland Road. 268 Comment
  UCR240037  Phoradendron californicum A. C. Sanders, Tim Thomas, T. B. Salvato 2012-11-1 40510 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
  UCR195798  Phoradendron densum Jim Andre, T. La Doux 2007-9-6 8702 Riverside Little San Bernardino Mountains, Joshua Tree National Park, c. 5 mi south of west entrance 1226 Comment
  CAS-BOT-BC135178  Phoradendron juniperinum Louis C. Wheeler 1931-10-3 243 Riverside 1 1/2 mi NW Tahquitz Peak, San Jacinto Mts. 1920 Comment
  SD155415  Phoradendron pauciflorum Craig Reiser 2002-5-27 Riverside Santa Rosa Peak, north of east-west fire road, below peak. Comment
  POM354352  Phoradendron villosum N. C. Cooper 1949-6-29 4295 Riverside Below Pinon Flats, San Jacinto Mt. 1067 Comment
  UC6105  Phoradendron villosum H. M. Hall July, 1901 2531 Riverside s. side San Jacinto Mts. San Jacinto Mts. 1615 Comment
  RSA423824  Physalis crassifolia Robert M. Perkins 1937-3-15 s.n. Riverside 20 miles East of Indio. Comment
  UCR103322  Physalis crassifolia George K. Helmkamp, E. A. Helmkamp 1998-2-5 2653 Riverside Sonoran (Colorado) Desert, Indio Hills, 3 mi. east of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  RSA638199  Physalis philadelphica Scott D. White 1998-10-13 7179 Riverside Corona, near Bedford canyon: Dissected alluvial slope, foothills at eastern slope of Santa Ana Mts. 'Joseph Canyon' wash near a disused quarry. 335 Comment
  CAS-BOT-BC60806  Physaria tenella Roxana S. Ferris 1953-3-13 12607 Riverside Road along Coachella Canal east of Bat Caves Buttes near Imperial County line. 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
  JEPS20056  Pinus attenuata Carl V. Meyer 1929-11-29 Riverside 250 yds. e Keen Camp Ranger Sta.; Mt. San Jacinto Comment
  UC2013413  Pinus contorta subsp. murrayana Rudolf Schmid and Mena J. Schmid 2009-5-3 2009 -7 Riverside San Jacinto Mountains, Tahquitz Peak (summit). Just right (as ascending) of South Ridge Trail to Tahquitz Peak. Comment
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Aug 26 2015
  RSA5238  Pinus flexilis C. B. Wolf 1932-8-5 3982 Riverside Rocks at summit of San Jacinto Peak 3294 Comment
  UC1134062  Pinus monophylla R. St. John 1931-1-15 173 Riverside Vandevender Flat San Jacinto Quadrangle Comment
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Jul 5 2010
  UCR30455  Pinus monophylla Frank C. Vasek 1962-3-31 620331- 01 Riverside Sonoran (Colorado) Desert, Coxcomb Mtns. 1220 Comment
  UCSB99  Pinus monophylla Cline, C. 1960-5-15 Riverside Edge of Pinon Flats Camp; 15.5 miles SW of Palm Desert; San Bernardino National Forest 1219 Comment
  CLARK-A1528-3564  Pinus quadrifolia John C. Roos 1947-4-5 3436 Riverside San Jacinto Mountains 1462 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
  SJSU1297  Pinus quadrifolia M. L. Seibert 1952-9-6 Riverside near State Hwy 74 c. 12 mi E of Anza in Santa Rosa Indian Reservation Comment
  UCR113934  Piptatherum miliaceum Mitch Provance, A. C. Sanders 2000-7-4 2100 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  RSA282946  Piptatherum miliaceum C. W. Tilforth 1980-3-30 1933 Riverside East fence line of Swan Lake Mobile Home Park, north of Norco, Mira Loma Comment
  UCR97024  Pityrogramma triangularis var. triangularis Scott D. White 1997-2-28 4712 Riverside Peninsular Range, Elsinore Basin, SE of Hwy 74, c. 1 mi east of junction with Hwy I-15 Fwy 457 Comment
  RSA747963  Plagiobothrys arizonicus Justin M. Wood 2009-5-11 704 Riverside McMullen Flat area, 0.35 N on Valley Hi Dr, from intersection w/ Twin Pines Rd. 1195 Comment
  JEPS68030  Plagiobothrys canescens W. L. Jepson 1906-5-27 1474 Riverside Coahuilla Valley Comment
  RSA666894  Plagiobothrys canescens A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-8 24192 Riverside S. of Hemet, E end of Diamond Valley, ca 1/4 mi. N of Newport Rd. and 3/4 mi. E of State St. 506 Comment
  UCR171904  Plagiobothrys canescens John F. Green 2006-4-27 s.n. Riverside Peninsular Ranges, Temecula, plot centered on San Diego Aqueduct corridor between Nicolas Road and Via Norte 381 Comment
  UCR241772  Plagiobothrys canescens A. C. Sanders 2013-4-9 40784 Riverside Peninsular Range; Perris-Aguanga Basin, Romoland, along SCE powerline route east of I-215, parallel to McLaughlin Rd., west of Trumble Rd., SE of Perris 436 Comment
  UCR102161  Plagiobothrys collinus Scott D. White 1997-2-28 4727 Riverside Peninsular Range, Elsinore Basin, SE of Hwy 74, c. 1 mi east of junction with Hwy I-15 Fwy 457 Comment
  UCR116666  Plagiobothrys collinus A. C. Sanders, Carolyn Washburn 2001-5-10 24232 Riverside Perris-Aguanga Basin, 1 mi. south of Winchester on the east side of Hwy 79 (Winchester Rd.) just south of Patton Ave. 488 Comment
  UCR140897  Plagiobothrys collinus Virginia Moran 2003-4-2 s.n. Riverside Peninsular Range, Warm Springs Preserve (managed by Center for Natural Lands Management), approximately 8 km north of Temecula and 3 km northeast of the [west?] end of Hunter Road 396 Comment
  RSA702727  Plagiobothrys collinus var. californicus Scott D. White, Michael Honer 2004-4-6 10062 Riverside Temescal Valley, just north of the I-15 Freeway and east of Indian Truck Trail, south and west of Lee Lake. 335 Comment
  UCR134643  Plagiobothrys collinus var. californicus Mitch Provance 1998-4-10 410 Riverside La Sierra Hills, east-facing slopes of hills at western extreme of Cypress Ave 351 Comment
  SBBG92112  Plagiobothrys fulvus J. Hirshberg 1989-4-4 Riverside Santa Rosa Plateau, S of town of Murrieta, SW of Mesa de Burro 609 Comment
  UC306227  Plagiobothrys leptocladus P. A. Munz 1918-4-27 2123 Riverside se end Lake Elsinore; se end Lake Elsinore Comment
  RSA562122  Plagiobothrys nothofulvus Steve Boyd, Tim Ross 1992-4-1 6784 Riverside Santa Ana Mountains, Elsinore Peak area south of lake Elsinore. South base of Elsinore Peak, just north of Main Divide Road. 1024 Comment
  SBBG92278  Plagiobothrys nothofulvus J. Hirshberg 1989-4-19 Riverside Santa Rosa Plateau, S of town of Murrieta, W of Mesa de Burro 609 Comment
  RSA543611  Plagiobothrys tenellus Steve Boyd 1991-5-7 6176 Riverside Santa Ana Mountains, SE and E side of Elsinore Peak. 1006 Comment
  RSA85110  Plagiobothrys tenellus J. C. Roos 1952-4-29 5594 Riverside Reche Canyon 457 Comment
  SDSU18737  Plantago erecta C. Matt Guilliams 2008-2-13 449 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. Just south of edge of mesatop. 426 Comment
  CLARK-A1528-3429  Plantago insularis John C. Roos 1966-3-20 Riverside Comment
  SDSU13008  Plantago lanceolata Michael G. Simpson 1999-10-27 2052 Riverside Santa Margarita Ecological Reserve, San Diego State University. Along path from river to Southside facilities. 152 Comment
  RSA778485  Plantago ovata Duncan S. Bell 2009-3-8 50 Riverside Arica Mountains: east side of mountain range, approximately 1.8 air miles northwest of Priest Well. 350 Comment
  POM308154  Plantago ovata var. fastigiata Henry J. Ramsey, Henry J. Ramsey 1939-11-28 2921 Riverside 10 miles east of Indio. Comment
  UC1931135  Plantago patagonica Scott D. White, Justin Wood 2008-6-17 12193 Riverside San Jacinto Mountains: Morris Ranch road - open area west of Goff Flat (Palm View Peak) Comment
  UCR166295  Plantago patagonica A. C. Sanders, J. C. Dice, K. C. Rose, D. Woodard 1995-3-29 16240 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
  UCR129783  Platanthera dilatata var. leucostachys P. A. Munz 1922-7-7 6065 Riverside San Jacinto Mtns., meadow [Skunk Cabbage M.?] north of Tahquitz Valley 2439 Comment
  UC4555  Platanthera leucostachys H. M. Hall July 1901 2448 Riverside Tauquitz Valley San Jacinto Mountains, Tauquitz Valley 1889 Comment
  RSA652518  Platanus racemosa T. C. Thomas 1974-7-5 s.n. Riverside Riverside. 366 Comment
  SD181427  Platystemon californicus Scott D. White, Bill La Haye 2000-5-27 7946 Riverside San Jacinto Mountains; Baldy Mountain area. 1616 Comment
  UC50137  Platystemon californicus H. M. Hall June, 1901 2189 Riverside s side San Jacinto Mountains; s side San Jacinto Mountains 1341 Comment
  UCR249824  Platystemon californicus T. B. Salvato, John Lovio 2013-3-19 7363 Riverside Perris-Aguanga Basin, Menifee Valley, Los Alamos Road at its crossing of Warm Springs Creek, and hill west of Jeanette Drive 402 Comment
  SEINET13710927  Platystemon californicus S. W. Austin, S. W. Austin 1969-1 23 Riverside W Slope of Mts, E of Railroad Tracks & N of RaviNE N of Big Springs Rd 1500 Ft 457 Comment
  POM1027  Pleuraphis rigida H. M. Hall 1902-04 2847 Riverside Coyote canyon 152 Comment
  CAS-BOT-BC326650  Pleurocoronis pluriseta E. A. McGregor 1917-3-18 735 Riverside 5 miles up Painted Canyon, Colorado Desert Comment
  RSA472089  Pleurocoronis pluriseta Christopher Davidson 1980-4-4 9948 Riverside West end of the Orocopia Mountains in a small canyon and wash almost due south of Oro Peak. Comment
  SEINET6186104  Pleurocoronis pluriseta Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-1 4607 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  UCD134970  Pleurocoronis pluriseta J. C. Roos 1966-3-10 s.n. Riverside 3 miles southwest of Desert Center, Chuckwalla Mtns. Comment
  CAS-BOT-BC326537  Pluchea sericea C. F. Baker 1903-4-4 4148 Riverside Elsinore Comment
  UCR120686  Pluchea sericea D. E. Bramlet 2000-8-30 3074 Riverside Lake Skinner Regional Park. Tucalota Creek, just east of the equestrian bridge which crosses the creek. 1400-1500 ft north of the dirt service road (1487), and 2,600 - 2,700 ft. SE of the service road in Section 6 (1516) 470 Comment
  UCR121696  Poa bulbosa A. C. Sanders 2002-5-4 25042 Riverside San Jacinto Mtns., Idyllwild, Pine Crest Ave., NE of Hwy 243 1677 Comment
  RSA125535  Poa fendleriana R. Weatherby 1949-6-6 333 Riverside Santa Rosa Mtn. 2134 Comment
  UC71021  Poa pratensis subsp. pratensis F. A. Blake 1901-6-2 Riverside Rayneta [Idyllwild] Comment
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May 26 2013
  UCR19665  Poa secunda John C. Roos 1950-2-25 4710 Riverside Pass between Reche Canyon and Pigeon Pass Road 457 Comment
  CAS-BOT-BC413755  Polygonum argyrocoleon Peter H. Raven 1958-1-25 11474 Riverside 0.5 miles west of Mecca Comment
  UCR112479  Polygonum argyrocoleon A. C. Sanders, Mitch Provance, T. B. Salvato 2000-4-18 23327 Riverside Coachella Valley, along Dillon Rd. at junction with Tyler, north of I-10, east of Indio and north of Coachella 5 Comment
  UCR260160  Polygonum aviculare Duncan S. Bell, Kim Clark, Ingrid Crickmore, Bob Ellis, Keir Morse, Gene Ratcliff 2013-4-7 4776 Riverside Eastern Mojave Desert, east side of Arica Mountains, west side of Rice Valley c. 6 air mi southeast of the ghost town of Rice or c. 5.25 air mi east-southeast of Priests Well 211 Comment
  SBBG61495  Polygonum douglasii R. Hoffmann 1929-9-5 Riverside Tahquitz Valley Comment
  UCR49987  Polygonum punctatum S. J. Myers 1987-10-27 s.n. Riverside Peninsular Range; Santa Ana Mtns., c. 3 mi. west of Temecula, NE portion of Santa Rosa Plateau, 3/4 mi. east of Walker Basin 488 Comment
  POM20514  Polypodium hesperium E. C. Jaeger 1923-6-28 s.n. Riverside Long Valley, San Jacinto Mountains 2590 Comment
  RSA772337  Polypogon australis Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4518 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UC39757  Polypogon monspeliensis H. M. Hall June, 1901 2274 Riverside vicinity Strawberry Valley; San Jacinto Mountains, vicin of Strawberry Valley 1615 Comment
  UCR96862  Polypogon monspeliensis Scott D. White 1993-4-30 1316 Riverside San Jacinto Valley, Near intersection of Warren Rd. and Stetson Ave. 458 Comment
  IRVC159  Polystichum imbricans subsp. curtum R. H. Whittaker, W. A. Niering 1963-5-27 SJ 7 Riverside Hemet Hwy, between Hemet and Mtn Center. Peninsular Ranges, San Jacinto Mountains 1250 Comment
  RSA512162  Porophyllum gracile Ed LaRue 1989-5-3 s.n. Riverside 2 mi. (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at McVicker Canyon. 488 Comment
  UCR121171  Porophyllum gracile D. E. Bramlet 1989-5-20 1877 Riverside Bachelor Mtn., S-facing slope of mountain, 1,500 ft. (0.28 mi.) north of Lake Skinner and 3,000 ft. (~0.5 mi.) E [NE] of the Dam. 537 Comment
  UCR18436  Porophyllum gracile J. Olmstead 1966-5-2 s.n. Riverside Santa Rosa Mtns., Granite country SW of Black Hill, west of Hwy. 74. 976 Comment
  RSA180483  Potamogeton foliosus E. W. Lathrop 1960-6-9 4971 Riverside 14 miles west of Murrieta. Comment
  CAS-BOT-BC453923  Potamogeton pectinatus A. J. McC. 1892-6-5 99 Riverside Elsinore Comment
  POM161553  Potentilla rimicola Ralph Hoffmann 1929-9-6 s.n. Riverside Tahquitz Valley, San Jacinto Mts. 2439 Comment
  UCR277623  Proboscidea parviflora subsp. parviflora Aaron C. Sedgwick, Cody Leslie 2012-9-21 126 Riverside Mojave Desert, Rice Valley, c. 10 miles south of Hwy 62 on Rice/Blythe Road 281 Comment
  LA47470  Prosopis glandulosa var. torreyana Nesta Dunn; A. M. Martin 1932-3-27 sn Riverside Oasis Comment
  UC1129888  Prosopis glandulosa var. torreyana H. S. Yates 1937-6-28 6728 Riverside Palm Springs 137 Comment
  RSA453229  Prunus fasciculata M. B. Dunkle 1935-3-31 4443 Riverside Cottonwood Springs. Colorado Desert. 701 Comment
  UC1713767  Prunus fasciculata S. B. and W. F. Parish 1197 Riverside Fls., Morongo, Mts. of Colorado Desert, April, Fr., Mts. of Mojave Desert, May, 1882 Comment
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Feb 16 2013
  CLARK-A1045-109  Prunus fremontii George K. Helmkamp 1977-3-20 Riverside Pinyon Pines area above west edge of Deep Canyon; Palm Desert 15'Q Comment
  SEINET3077290 Image available Prunus fremontii John Adams 1966-2-3 385 Riverside San Jacinto Mountains, 3 mi elow Pinyon Flats. 1067 Comment
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Aug 3 2013
  RSA472317  Psathyrotes ramosissima Anstruther Davidson 1921-4-1 s.n. Riverside Palm Springs. Comment
  SD186105  Pseudognaphalium biolettii A. C. Sanders 2004-4-20 27549 Riverside Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line. 640 Comment
  SD9078  Pseudognaphalium californicum Daniel Cleveland 1881-5-10 Riverside Temecula Comment
  UCR281885  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-26 17- 441 Riverside Murrieta Valley, city of Murrieta, Miller Canyon area, wash located vicinity to New Clay Street and Ivy Street 334 Comment
  UC1719666  Pseudognaphalium luteoalbum Steve Boyd, Aydee Virgen 2004-4-13 10865 Riverside Peninsular Ranges; Santa Ana Mountains region; San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon. Comment
  SEINET2054399 Image available Pseudognaphalium stramineum Becky Brooks 1973-5-26 Riverside Corona, approximately 100 yds. north of Ontario Rd. and 200 yds west of start of Lake Elsinore Frwy. Just into foothills. 225 Comment
  CHSC26039  Pseudognaphalium thermale Wesley Griesel 1962-9-18 Riverside Dark Canyon, San Jacinto Mts. 1920 Comment
  POM157889  Psilocarphus brevissimus P. A. Munz 1927-5-20 10801 Riverside Murietta Hot Springs Comment
  UCR220340  Psilocarphus brevissimus D. E. Bramlet 1991-5-7 2123 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
  SEINET3133952  Psorothamnus arborescens var. simplicifolius S. B. Parish 1907-4-3 6108 Riverside W border of the Colorado Desert 150 Comment
  OBI13261  Psorothamnus emoryi Lewis S. Rose 1959-1-9 59005 Riverside Palm Desert 30 Comment
  POM27099  Psorothamnus emoryi Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring. 61 Comment
  SBBG34735  Psorothamnus emoryi T. L. Secrest 1950-3-12 Riverside near Indio Comment
  UC61515  Psorothamnus emoryi L. D. Copeland May 1904 Riverside West Canyon , West Canyon (Palm Springs) Comment
  CAS-BOT-BC352324  Psorothamnus fremontii var. fremontii Robert F. Thorne 1964-5-3 33849 Riverside near hwy., ca. 4 miles S of Morongo Valley and ca. 3 miles S of San Bernardino County line. Comment
  JEPS41665  Psorothamnus schottii W. L. Jepson 1927-4-12 11683 Riverside Mecca, Painted Canyon Painted Canyon; Mecca, Painted Canyon 76 Comment
  JEPS41679  Psorothamnus schottii W. L. Jepson 1914-5-22 6040 Riverside near Indio (Thousand Palms Canyon, Colorado Desert); Colorado Desert, Thousand Palms Canyon, nr Indio Comment
  SD27947  Psorothamnus schottii Carl B. Wolf 1932-4-27 2990 Riverside Colorado Desert, 14 mi. E of Mecca, on Blythe Road (E of Shavers Well) 152 Comment
  UC311260  Psorothamnus schottii Philip A. Munz 1926-1-1 10816 Riverside Thousand Palms Comment
  UC68508  Psorothamnus schottii H. M. Hall Apr., 1905 5990 Riverside near Indio (Colorado Desert); , near Indio 30 Comment
  UC575036  Psorothamnus spinosus C. Epling, L. Ellison 1933-6-24 Riverside near Palm Springs (near Cathedral City); , near Palm Springs Comment
  UC218675  Pteridium aquilinum var. pubescens P. A. Munz 1922-7-7 6035 Riverside Tamarack Valley; San Jacinto Mts 2804 Comment
  UCR280645  Pterocarya stenoptera A. C. Sanders 2017-5-15 43206 Riverside Riverside, eastern side of UCR campus, in canyon below the UCR Botanic Garden, adjacent to parking area 340 Comment
  UC218099  Pterospora andromedea P. A. Munz 1922-7-6 6009 Riverside Fern Valley San Jacinto Mts. (upper part, foot of zig-zag to Tahquitz Valley) 1828 Comment
  HSC17563  Pterostegia drymarioides C. L. Hitchcock, C. V. Muhlick 1964-3-17 23079 Riverside 8 mi. SE of Corona, along road to Elsinore Comment
  UCR214131  Pterostegia drymarioides A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37735 Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 518 Comment
  UCR85317  Pterostegia drymarioides A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-19 16157 Riverside San Jacinto Mtns foothills/Sonoran Desert, Coachella Valley; alluvial fan of Chino Canyon along the Palm Springs tram road, north of the road, 14 telephone poles above Hwy 111/Palm Canyon Dr. 300 Comment
  UCR277504  Quercus Mitch Provance 2012-4-20 412- 36 Riverside San Timoteo Canyon, 0.8 mi south-southeast of the SCE El Casco Substation, on the south side of San Timoteo Canyon Rd./Oak Valley Parkway 671 Comment
  UCR278566  Quercus Mitch Provance 2012-9-5 912- 16 Riverside Badlands of Western Riverside County, Potrero Creek, S end of City of Beaumont, E side of Highland Springs Rd., about 100 yards south of intersection with Breckenridge Ave. 755 Comment
  SD193293  Quercus agrifolia A. C. Sanders, R. E. Riefner Jr. 2005-8-12 31543 Riverside Upper Bautista Canyon, 0.8 mile below Trip[p Flat Road. 1128 Comment
  RSA713388  Quercus agrifolia var. oxyadenia R. E. Riefner Jr., A. C. Sanders 2005-8-12 5 -605 Riverside Poppet Flat, tributary to Poppet Creek on Poppet Flat Rd. 1086 Comment
  RSA575900  Quercus berberidifolia Steve Boyd 1994-10-14 8398 Riverside San Mateo Canyon Widerness Area of the Cleveland Nat'l Forest. San Mateo Canyon along San Mateo Trail between N branch of Tenaja Trail and Fishermans Camp. 427 Comment
  SD136834  Quercus berberidifolia Steve Boyd 1994-10-14 8398 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, San Mateo Canyon, along San Mateo Trail between north branch of Tenaja Trail & Fisherman's Camp, on mesic north-facing slope 427 Comment
  UCR100773  Quercus berberidifolia A. C. Sanders, T. Tennant 1997-11-14 21602 Riverside San Bernardino Mtns., Morongo Indian Reservation, sag pond at SE end of Burro Flats 1110 Comment
  UCR182502  Quercus berberidifolia Andrea Salzman, Ricky Escobar, et al 2006-4-10 44 Riverside Peninsular Range, Agua Tibia Wilderness at Arroyo Seco, c. 0.5 mi. south of Dripping Springs Guard Station 518 Comment
  UC488911  Quercus chrysolepis C. V. Meyer Jun 1927 165 Riverside Saunders Meadows San Jacinto Mts. 1737 Comment
  UC519764  Quercus chrysolepis C. Epling 1931-10-4 Riverside Idyllwild 1371 Comment
  SD146253  Quercus douglasii A. C. Sanders, P. J. MacKay, T. Thomas, O. F. Clarke 1997-4-13 20436 Riverside San Joaquin Valley, San Emigdio Ranch, slopes south of San Emigdio Creek, just above confluence with Doc Williams Canyon, on north-facing slope; Eagle Rest Peak 7.5' quad. 915 Comment
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Jul 23 2019
  UCR40270  Quercus engelmannii Steve Boyd 1985-7-30 1047 Riverside Santa Ana Mtns., Santa Rosa Plateau, De Luz Road, 7.8 - 10 mi. west of Rancho California Comment
  JOTR31148  Quercus john-tuckeri La Doux, Tasha 2009-6-3 1857 Riverside Joshua Tree National Park. (Stop 2): Little San Bernardino Mountains, Covington Flats Area, Covington Spring 1396 Comment
  CAS-BOT-BC104316  Quercus palmeri A. C. Sanders; Mitch Provance 1998-5-14 21848 Riverside Jurupa Mtns: Rattlesnake Mtn. (hill 1452 m), Crestmore, above watertank W of Cedar Ave., above intersection of Andalusia and Malaga Streets 396 Comment
  UCR180043  Rafinesquia californica Mitch Provance 2005-5-18 9812 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
  RSA776249  Rafinesquia neomexicana Duncan S. Bell 2010-3-20 632 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  UCR214562  Rafinesquia neomexicana A. C. Sanders 2010-3-15 37410 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
  UCR279343  Rafinesquia neomexicana A. C. Sanders, Jim Malusa 2017-3-23 42944 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 3 miles east of Iris Pass 823 Comment
  CAS-BOT-BC158118  Ranunculus muricatus Jennifer H. Jones 2006-5-1 290 Riverside Foot of Box Springs Mtns. E of University of California Riverside Campus; University Village Apartments SW corner of Big Springs Rd. and Watkins Dr. 335 Comment
  CHSC109258  Ranunculus sceleratus Scott D. White; Justin M. Hood 2008-7-9 12441 Riverside San Jacinto Mountains: K Flat, from large pond downstream to meadow. 1402 Comment
  RSA0034421  Rhamnus californica Percy C. Everett 1935-6-17 7137 Riverside Coldwater Can. , trail to Santiago Pk. 1/3 mi. above Glen Ivy Resort. 457 Comment
  RSA714433  Rhamnus crocea A. C. Sanders 2004-5-12 27870 Riverside Elsinore Basin Region: Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek. 378 Comment
  UCR241774  Rhamnus crocea A. C. Sanders, Timothy W. Chumley 2013-3-29 40712 Riverside Peninsular Range; Elsinore Area, Alberhill, Lake St. at Riverside Co. conservation reserve, 0.28 km south of intersection with Temescal Canyon Rd. 378 Comment
  SD152765  Rhamnus ilicifolia Steve Boyd 1992-3-31 6750 Riverside Santa Ana Mountains, San Mateo Cyn Wilderness Area. Morgan Trail from Round Potrero W to jtn with Tenaja Tr. In N-fork Bear Creek. 671 Comment
  UCR270189  Rhamnus ilicifolia A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-2 42405 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, vicinity of lab and old Emerson house site 488 Comment
  RSA20098  Rhamnus tomentella subsp. cuspidata I. W. Clokey, E. G. Anderson 1935-8-21 6735 Riverside North of Idlewilde. 1650 Comment
  RSA801731  Rhododendron occidentale LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6176 Riverside Logan Creek, north of the community of Pine Cove, and just west of road (5S09). 1799 Comment
  UCR154729  Rhus aromatica T. B. Salvato, Kent Beaman 2005-5-16 770 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
  UCR249822  Rhus aromatica T. B. Salvato, John Lovio 2013-3-19 7360 Riverside Perris-Aguanga Basin, Menifee Valley, Los Alamos Road at its crossing of Warm Springs Creek, and hill west of Jeanette Drive 402 Comment
  UCR23410  Rhus integrifolia John C. Roos 1944-1-29 2766 Riverside Box Springs Mtns. east of Riverside near Pigeon Pass 750 Comment
  RSA386388  Rhus ovata M. V. Hood 1945-3-30 s.n. Riverside Aguanga. 762 Comment
  SDSU12886  Rhus ovata Janet M. Knotts, Jill Steinberg & Kevin Contreras 1998-3-25 25 III1998B Riverside Creekbed due south of SDSU Santa Margarita Field Station; ca 1000 feet southewest on road to switchback bend, then ca. 800 feet northeast down to creekbed, north side of road. 238 Comment
  CAS-BOT-BC93062  Ribes californicum var. hesperium B. D. Stark 1930-2-21 1470 Riverside Hidden Canyon near Corona. Santa Ana Mountains. Comment
  RSA797261  Ribes cereum Robert F. Thorne, Walter Wisura 1977-9-17 50799 Riverside San Jacinto Mountain: summit. 3293 Comment
  UC858446  Ribes cereum P. A. Munz 1922-7-6 6002 Riverside Tahquitz Valley San Jacinto Mts. 2194 Comment
  CAS-BOT-BC173129  Ribes indecorum A. C. Sanders; Lowell J. Bean; Pesach Lubinsky; et al 2003-1-10 25660 Riverside San Jacinto Mountains: Bautista Canyon, at road crossing of creek ca. 1 mile above Alessandro Trail 930 Comment
  RSA594789  Ribes indecorum D. L. Banks, Dylan Hannon 1996-5-3 0985 Riverside NW Palomar Mountains; Agua Tibia Mountains; Foothills S of Hwy. 79 ; E of the Dripping Spring Campground; Along a mesic E facing slope, approximately 300 m SE of the Helipad at the upper camp sites 534 Comment
  UCR102735  Ribes indecorum B. G. Pitzer 1998-1-25 3427 Riverside Lakeview Mtns, Pulsar View Road, c. 0.5-0.75 mile uphill from the water tank at base of hills on Warren Road; c. 1 mile (airline) north of Juniper Flat Road 610 Comment
  UCSB7025  Ribes malvaceum var. malvaceum Gill, Robert 1959-3-14 Riverside Santa Ana Mtn Range; Road to Black Star Canyon; Oak flat; from Corona site 365 Comment
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Nov 24 2014
  UC1127499  Ribes quercetorum R. St. John 1923-1-23 176 Riverside s Willow Canyon; San Jacinto Quadrangle Comment
  RSA615141  Ribes quercetorum A. C. Sanders, O. F. Clarke, H Foster 1997-3-2 19766 Riverside Box Springs Mountains E side of the range in Pigeon Pass area, above W end of Quail Call Drive, in canyon just west of section line. 610 Comment
  RSA662133  Ricinus communis Carol Zuck 1981-2-16 32 Riverside 1 mi east of I-15 on Cajelco Rd. Comment
  CHSC1217  Romneya coulteri E. Thomas 1940-5-11 Riverside Temescal canyon. Comment
  UC218256  Rosa californica P. A. Munz 1922-6-29 5901 Riverside along small stream Santa Rosa 1981 Comment
  UCR197035  Rosa californica A. C. Sanders, D. L. Sanders 2008-9-27 36105 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
  RSA466038  Rumex acetosella M. B. Dunkle 1933-7-20 3700 Riverside Idyllwild, San Jacinto Mountains. 1616 Comment
  UCR25143  Rumex conglomeratus O. F. Clarke 1972-5-28 s.n. Riverside Residence of O.F. Clarke, 1012 Spruce St., Riverside 305 Comment
  RSA717629  Rumex salicifolius Scott D. White 2006-4-27 11288 Riverside Perris Basin/San Jacinto Mtn Foothills: Santa Rosa Hills, S. of Hemet. 549 Comment
  UCR193957  Rumex salicifolius A. C. Sanders 2008-7-25 35905 Riverside Peninsular Range; San Jacinto Mtns., east side of May Valley, NE of Bonita Vista Rd. at foot of hills 1539 Comment
  UC126710  Sagina decumbens subsp. occidentalis F. M. Reed 1908-7-12 2442 Riverside margin of Lake Surprise San Jacinto Mts., Lake Surprise Comment
  UCR25038  Sagina saginoides A. C. Sanders 1980-8-21 1776 Riverside San Jacinto Mountains, Mt. San Jacinto Wilderness Area. east of Saddle Junction at the head of Tahquitz Creek, c. 2 mi NE of Idyllwild 2409 Comment
  RSA19551  Salazaria mexicana Roxana S. Ferris, Ruth P. Rossbach 1938-5-15 9543 Riverside Cottonwood Springs Canyon. Comment
  UC883833  Salazaria mexicana C. L. Hitchcock 1940-4-1 5905 Riverside 1 mi below Cottonwood Springs (Joshua Tree National Monument); , below Cottonwood Springs Comment
  CAS-BOT-BC129701  Salix bonplandiana Nancy Ryan Zabriskie; Walter Zabriskie 1971-2-13 334 Riverside Immediately below Andreas Canyon Clubhouse, Andreas Canyon, east slope San Jacinto Mts. Comment
  UCR225575  Salix exigua A. C. Sanders 2011-3-29 38858 Riverside Peninsular Range; Perris-Aguanga Basin Region, canyon in hills between Sun City and Perris, San Jacinto River at powerline corridor crossing west of Goetz Rd., above Railroad Canyon Lake 428 Comment
  RSA0013520  Salix exigua Joan Stewart 1998-05 696 Riverside Big Morongo Preserve Comment
  CAS-BOT-BC108150  Salix gooddingii Philip A. Munz 1932-3-24 12032 Riverside Along small stream, north of Elsinore. 304 Comment
  UCD110969  Salix gooddingii A. C. Sanders 1997-3-19 20037 Riverside Lake Skinner area: Lake Skinner, NW shore near inlet, SW foot of Bachelor Mtn. Comment
  UCD110975  Salix gooddingii A. C. Sanders; T. B. Salvato 2003-5-21 26785 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-BC108217  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  UC57071  Salix laevigata H. M. Hall Apr. 1902 2940 Riverside vicinity Riverside (along Santa Ana River); Santa Ana River 243 Comment
  UC914197  Salix laevigata Charles B. Fiker 1946-4-2 3359 Riverside road dip s of Temecula bridge (on Hwy. 395) Comment
  UCR270563  Salix laevigata John F. Emmel 1998-5-2 1542 Riverside San Jacinto Mtns., SW foothills, Bautista Canyon, 0.4-0.5 road mile SE of national forest boundary 723 Comment
  HSC79770  Salix lasiandra var. lasiandra James Henrickson 1973-3-18 8617 Riverside 37 mi. E of Temecula on Coyote Canyon Trail, SE of Terwilliger, 3 mi. N of San Diego Co. line 701 Comment
  POM2044  Salix lasiolepis W. L. Jepson, H. M. Hall 1901-5-17 1307 Riverside Strawberry Valley. 1616 Comment
  UCR139633  Salix lasiolepis A. C. Sanders 2004-6-30 28402 Riverside Perris-Aguanga Surface/Menifee Valley Region, Paloma Valley, large rocky hill (1762 ft.) 1 mi. east of Murrieta Rd. and 1 mi. north of Bundy Canyon Rd., c. 5 miles due south of Sun City 518 Comment
  SDSU13633  Salsola tragus W. Miller with C. Mosse 1972-7-12 Riverside Northwest corner, west of woodland (west of R.C. Weather Station). Comment
  RSA496388  Saltugilia australis Steve Boyd, T. S. Ross, L. Arnseth 1989-3-31 3065 Riverside Vail Lake area, S of Hwy 79, 0.25 mi E of Pauba Rd. 427 Comment
  RSA67079  Saltugilia splendens Verne Grant, Alva Grant 1951-4-7 15984 Riverside Below Morongo Valley on road to White Water 732 Comment
  UC416704  Salvia Miss M. A. King 1893-1 Riverside Menifee Comment
  RSA735189  Salvia apiana Scott D. White, Angelia Carey 2004-6-4 11464 Riverside San Jacinto Mountain foothills: Indian Creek watershed, above confluence w/ San Jacinto River. Uplands around former homestead area SE of creek. 579 Comment
  RSA772138  Salvia apiana Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4976 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 1-2 miles above Whitewater Visitor Center (Whitewater Trout Farm)., Between N34.01961, W116.68175 and N34.01041 and W116.67141. 823 Comment
  RSA775448  Salvia apiana Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4451 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 488 Comment
  SD4321  Salvia apiana Fidella G. Woodcock 1928-4-27 Riverside San Jacinto mountain near bridge of S.J. Creek Comment
  SEINET2065984 Image available Salvia apiana Marc Mittleman 1982-5-25 Riverside Gentry Exp. Farm, Los Alamos Rd. Murietta 365 Comment
  UCD125454  Salvia apiana B. Pitzer 1997-4-20 3194 Riverside Lakeview Mountains: Warren Road, ca. 1/2 miles (airline) northeast of Contour Road. Just past turnoff to the water tank. 518 Comment
  SD241861  Salvia carduacea Jay Walker, R. C. Walker 2004-4-15 jbw 3092 Riverside S of Hemet, 1.4 mile S of Gibbel Road about 1 mile E of State St., foothills forming east end of Diamond Valley, 1 mile SSE of Hemet Butte, S of mouth of Avery Canyon. Comment
  UC63764  Salvia carduacea H. M. Hall May 1899 Riverside San Jacinto Valley Comment
  RSA651682  Salvia columbariae Marion P. Harthill 1971-3-19 34 Riverside Palm Desert. Comment
  SD249232  Salvia columbariae J. Mark Porter, Lauren E. Machen 1997-2-15 11422 Riverside North of Interstate 15 at the Lake Street/Walker Canyon exit, 4.4 miles NE of the Highway 74 exit at Lake Elsinore. 390 Comment
  UC25692  Salvia columbariae Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Valley Comment
  RSA664086  Salvia columbariae var. columbariae Bruce Albert 1982-4-17 70 Riverside Hillside west of Lake Mathews Road, 2 miles south of Cajalco Road. Comment
  CHSC35477  Salvia eremostachya James Henrickson 1973-3-18 8612 Riverside Ca 33 (air) miles E of Temecula, 5-7 miles SE of Terwilliger, at N end of Coyote Canyon Road, on the first steep grade down the canyon. 792 Comment
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Nov 29 2014
  CAS-BOT-BC226136  Salvia greatae J. C. Roos 1958-3-29 s.n. Riverside In Salt Creek Wash, 3 miles N. of Coachella Canal on E. base of Orocopia Mtns. 304 Comment
  JEPS16863  Salvia greatae Marjorie D. Clary 1933-4-9 2185 Riverside 4 mi n Dos Palmos (n Colorado Desert); Colorado Desert 121 Comment
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Apr 29 2008
  RSA776183  Salvia greatae Amber Swanson, Duncan S. Bell 2011-3-20 249 Riverside N of the Bradshaw Trail between Coachella Canal Rd and Red Canyon. N of the Chocolate Mtns. 198 Comment
  RSA769334  Salvia leucophylla E. W. Lathrop 1974-6-4 7403 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  CAS-BOT-BC229982  Salvia mellifera D. A. Johansen; J. A. Ewan 1932-4-10 7050 Riverside Cabezon, San Gorgonio Pass 487 Comment
  CLARK-A1528-4964  Salvia mohavensis John C. Roos 1947-2-15 3234 Riverside Eagle Mountains Comment
  SBBG6512  Salvia vaseyi H. and M. Dearing 1936-12-25 1562 Riverside Long Cyn, Colorado Desert Comment
  SD48345  Salvia vaseyi E. K. Balls, P. C. Everett 1957-8-20 22670 Riverside 6.6 miles southwest along State Highway 74 from Palm Village (junction with State Hwy. 111) 502 Comment
  UC1179532  Salvia vaseyi Peter H. Raven 1958-5-6 12929 Riverside 10.2 mi sw Palm Desert (on State Highway 74); San Jacinto Mountains 762 Comment
  CSUSB1000  Sambucus mexicana Robert M. Hasegawa 1976-4-14 Riverside Box Springs Mountains Box Springs Mountains. 1/8 mile past road's end, east Big Springs Road. 274 Comment
  SDSU17499  Sanicula arguta Jerry Jenkins 2001-4-1 2001 -022 Riverside Santa Margarita Ecological Reserve. High saddle on road to Tourmaline mine, UTM zone 6, 482500E, 3699900N. UTM transfered to GIS. Comment
  UCR241569  Sanicula bipinnatifida A. C. Sanders 2013-4-16 40800 Riverside Peninsular Range; SE Gavilan Hills, SCE power line west of the San Jacinto River and south of Perris, below/NE of the intersection of McPherson Rd. and Keystone Dr. 450 Comment
  SEINET10636258  Sanicula crassicaulis Greg Gust, Leith Nye 2005-3-12 Gust 558 Riverside Cleveland National Forest. Hwy 74 west of lower San Juan Picnic Area at pullout W side of Santa Ana Mountain Range. 495 Comment
  UCR137715  Sanicula crassicaulis D. L. Banks 1997-3-29 1556 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
  RSA559416  Sanicula tuberosa Steve Boyd 1992-4-15 6863 Riverside Santa Ana Mtns, San Mateo Cyn Wilderness Area. Bluewater Cyn along Bluewater Tr. dowstream to the confluence with San Mateo Creek. 335 Comment
  LA202876  Sarcostemma cynanchoides subsp. hartwegii Nesta Dunn; A. M. Martin 1932-3-27 sn Riverside Box Canyon Comment
  UC708738  Sarcostemma cynanchoides subsp. hartwegii H. K. Wagnon 1944-5-25 391 Riverside near falls n. side Tahquitz Canyon; Palm Springs Comment
  JEPS27438  Sarcostemma hirtellum W. L. Jepson and W. C. Mathews 1914-5-18 6010 Riverside Pinyon Well to County Well; Colorado Desert Comment
  UCR217505  Satureja chandleri Ana Hernandez 2009-4-28 008 Riverside Santa Ana Mtns: foothills, Santa Rosa Plateau, near Tenaja Rd., on north-facing slope and drainage 512 Comment
  SEINET7862086  Schinus molle M. F. Barrus 1919-12-24 57 Riverside Riverside, Canyon, W slope of Box Springs Mts. Comment
  UCR260313  Schismus arabicus A. C. Sanders, Jim Malusa 2015-3-10 41382 Riverside Sonoran (Colorado) Desert, north end of Chocolate Mountains, eastern canyon at Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range 611 Comment
  RSA787599  Schismus barbatus Thomas Stoughton, Jacqueline McConnaughy, Andrew Monks, Malia Volke 2010-3-30 104 Riverside Coachella Valley Preserve, near mouth of Thousand Palms Canyon. Jct of Ramon Rd and Thousand Palms Canyon Rd. 91 Comment
  UC1023396  Schismus barbatus John and Lucille Roos 1951-3-24 5033 Riverside Mount Rubidoux 396 Comment
  RSA708155  Schoenoplectus americanus Scott D. White, Angelia Carey 2004-5-7 10352 Riverside Indian Creek and adjacent foothills. 549 Comment
  UC483743  Scirpus americanus F. R. Fosberg 1932-3-13 8079 Riverside Coachella Valley , Coachella Valley (Thousand Palms Canyon) Comment
  UCR60253  Scirpus cernuus var. californicus Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3638 Riverside Butterfield Valley, Vail Lake area, Temecula Creek, SE of the lake, just north of Hwy 79 488 Comment
  UCR111550  Scrophularia californica subsp. floribunda Mitch Provance 1998-5-4 1713 Riverside Jurupa Mountains, SW 'Rattlesnake Mt.', above the Ormand Quarry, c. 1.5 km west of peak 1739 366 Comment
  UCR193486  Scutellaria bolanderi subsp. austromontana A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-25 35606 Riverside Peninsular Range; San Jacinto Mtns., May Valley c. 1.25 mi SW of Fleming Ranch, mouth of nameless tributary NW of Herkey Crk., just north of Bonita Vista Rd. 1543 Comment
  RSA683700  Selaginella bigelovii Tena Shultz Clare 1931-01 14611 Riverside Colorado Desert, S of Banning. Comment
  LA209672  Selaginella eremophila Lawrence L. Kiefer; 1963-3-24 485 Riverside San Jacinto Mountains, Andreas Canyon, vicinity of Palm Springs, 304 Comment
  UCR280983  Senecio flaccidus var. douglasii Mitch Provance 2017-5-25 517- 66 Riverside Temescal Valley, 0.3 to 0.5 miles SE of Indian Truck Trail, between Temescal Canyon Rd. and Hwy. 15 361 Comment
  JOTR35342  Senecio mohavensis Harding, Mitzi, Mark Wheeler 2012-2-28 108 Riverside Joshua Tree National Park. Southeast Coxcomb Mountains; steep-walled, shallow, north-flowing canyon with rocky wash bottom (Stop 4) 361 Comment
  RSA614654  Senecio vulgaris A. C. Sanders 1997-3-1 19703 Riverside Box Springs Mtns.: Coyote Hill (Bench Mark ''Versity'', 1386 ft.) and ridge S and SE of the UCR Botanic Garden. 427 Comment
  POM187382  Senna armata E. Crow 1930-5-17 s.n. Riverside Shavers Well Comment
  CAS-BOT-BC438214  Sesuvium verrucosum S. B. Parish; W. F. Parish 1891-11-3 2278 Riverside Shores of Elsinore Lake Comment
  UCR145577  Sesuvium verrucosum Chet McGaugh 2004-11-15 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, 1 mile south of Thermal, parcel bounded by Ave. 58 & Ave. 60 on the north and south and by Polk and Filmore on the west and east, between the airport and Whitewater River -41 Comment
  RSA598041  Setaria parviflora F. M. Reed 1908-7-29 2553 Riverside Riverside, along upper side of Gage Canal near 8th Str bridge., 117Y'20'W, 33Y'58.5'N 311 Comment
  CAS-BOT-BC240159  Setaria verticillata John C. Roos 1952-5-14 5660 Riverside Corner Iowa Ave. and 8th Street east of Riverside 304 Comment
  SEINET11982177  Sidalcea hickmanii Unknown 1936-1 12817 Riverside Colorado Desert N of Palm Springs Comment
  HSC86949  Sidalcea malviflora B. Pitzer, E. Misquez 1988-2-28 630 Riverside SW of Murrieta, Walker Basin, Avenida del Oro, 2 mi. S of Rancho California Rd. 427 Comment
  LA205908  Sidalcea malviflora O. A. Plunkett; 1926-4-18 sn Riverside Temecula Comment
  RSA660659  Sidalcea malviflora subsp. sparsifolia A. C. Sanders, Steve D. Boyd 1980-4-17 s.n. Riverside Pine Meadow in upper Garner Valley, along Hwy 74, 0.7 mi. E of junction with Hwy 371. 1524 Comment
  RSA95377  Sidalcea malviflora subsp. sparsifolia F. W. Peirson 1914-04 2058 Riverside Beaumont, San Gorgonio Pass. Comment
  UCR193866  Silene antirrhina A. C. Sanders, Mitch Provance 2008-7-11 35807 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station 1475 Comment
  UCR169638  Silene gallica John F. Green 2005-4-28 s.n. Riverside Peninsular Range; Southern Santa Ana Mtns., Santa Rosa Plateau, hills on the south side of Tenaja Rd., between Squaw Mtn. and DeLuz Creek 655 Comment
  RSA784842  Silene laciniata J. D. Olmsted 1958-6-10 159 Riverside Santa Ana Mountains. Oak Flat Fire road 2 miles NE of Oak Flat and 7 miles SW of Corona (turn from US at Lincoln in South Corona by pottery shop). 777 Comment
  RSA571315  Silene multinervia Steve Boyd, D. L. Banks 1994-4-5 8264 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, in the vicinity of Oak Flats east of Verdugo Potrero. 762 Comment
  UC729875  Silene parishii Carl B. Wolf 1932-8-5 3981 Riverside summit San Jacinto Peak , summit San Jacinto Peak (San Jacinto Mts.) 3293 Comment
  UCR48504  Silybum marianum Steve Boyd 1986-4-22 1726 Riverside Temescal Canyon, Walker Canyon area, where Temescal Creek (=Alberhill Creek) flows between Alberhill Mountain and Gavilan Hills 427 Comment
  SBBG71061  Simmondsia chinensis H. and M. Dearing 1938-11-12 142 Riverside Little San Bernardino Mtns 762 Comment
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Jan 20 2015
  UCSB17802  Simmondsia chinensis Lockwood, Leo 1963-5-5 Riverside 12 miles S of Palm Desert on Palms to Pines State Highway 74, San Jacinto Mountains 914 Comment