Search Results — 2000 specimen records retrieved (1896 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCR26356  Abies concolor A. C. Sanders, J. A. Harpel 1981-8-26 2336 Riverside Santa Rosa Mtns., Cedar Spring 2250 Comment
  UCR67737  Abies concolor Frank C. Vasek 1977-11-25 771125- 09 Riverside San Jacinto Mtns., area around Cinco Posos Spring below Black Mountain look-out Comment
  CLARK-A1528-3259  Abronia villosa John C. Roos 1937-4-18 1364 Riverside Cabazon Comment
  SBBG69829  Abronia villosa M. N. Ackley -Mar-1922 711 Riverside Murrieta Hot Springs 398 Comment
  POM123199  Abronia villosa var. aurita Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring. 61 Comment
  RSA461201  Abronia villosa var. aurita N. C. Cooper 1944-7-15 1592 Riverside Palms to Pine Hwy 1463 Comment
  SEINET946021  Abronia villosa var. aurita Robert L. Rutherford 1944-1 1592 Riverside Palms to Pines Highway. 1463 Comment
  SD248459  Abronia villosa var. villosa A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41421 Riverside San Gorgonio Pass: San Gorgonio River wash, c. 3.7 miles E of Cabazon, c. 1.25 miles NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms (White Water 7.5'Q) 427 Comment
  UCR253375  Acacia Lauren Velasco 2014-9-2 s.n. Riverside Sonoran Desert; Coachella Valley, La Quinta Park in La Quinta, near the intersection of Adams St. and Blackhawk Way 27 Comment
  UCR58465  Acacia dealbata J. A. Adams 1966-3-12 434 Riverside Santa Ana Mtns., Hwy 74, above Lake Elsinore, toward Capistrano 610 Comment
  CSUSB1602  Acacia greggii Elliott Helm 1975-5-23 Riverside Mojave Desert Mojave Desert, 16 miles north of 29 Palms, off highway 177 304 Comment
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Jun 3 2012
  CLARK-A1528-1529  Acamptopappus shockleyi John C. Roos 1937-4-18 2483 Riverside San Jacinto Mountains Comment
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Oct 2 2018
  RSA783299  Achnatherum coronatum J. D. Olmsted 1962-6-23 5227 Riverside 1/2 mile south of conservation-detention school east of Oak Glen, southeast of San Bernardino Mountains 1524 Comment
  SEINET7593330 Image available Achnatherum coronatum Mary F. Spencer 1921-1 Riverside Near Banning 701 Comment
  POM46953  Achnatherum hymenoides Mary F. Spencer 1918-3-27 829 Riverside Palm Springs. 137 Comment
  POM162738  Achnatherum parishii subsp. parishii Ralph Hoffmann 1929-9-6 15 Riverside Granite ridges, San Jacinto Mountains. 2439 Comment
  RSA574727  Achyrachaena mollis Steve Boyd 1982-3-28 s.n. Riverside Gavilan Hills region, Temescal Canyon, south slope of Alberhill Mountain just east of extensively mined area. 427 Comment
  CAS-BOT-BC384727  Achyronychia cooperi L. A. Greata 1905-4-1 403 Riverside Coachella Comment
  SBBG53747  Acmispon strigosus S. Boyd 1980-5-2 Riverside Harford Springs County Park, on the NW corner of the Gavilan Plateau Comment
  SDSU18370  Acmispon strigosus C. Matt Guilliams 2008-2-21 470 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. 449 Comment
  RSA768503  Acroptilon repens Justin M. Wood 2009-11-30 1387 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  JOTR33126  Adenophyllum porophylloides La Doux, Tasha, Mike Bell 2003-10-17 1124 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Wonderland of Rocks; Wonderland Wash, active wash corridor with sandy bottom, surrounded by granitic outcrops and pediments 1310 Comment
  SJSU5451  Adenophyllum porophylloides R. C. McGehee 1970-5-1 258 Riverside 1 mile W of Chuckwalla Spring on Chuckwakka Road, Chuckwalla Mts Comment
  SDSU13509  Adenostoma fasciculatum var. fasciculatum W. Miller with C. Mosse 1972-7-20 Riverside West edge of aqueduct clearing overlooking view (S. gate). Comment
  CAS-BOT-BC139864  Adenostoma sparsifolium D. E. Breedlove 1961-8-5 947 Riverside At junction of Riverside Highway 1 and State Highway 74; San Jacinto Mountains 1524 Comment
  CAS-BOT-BC139870  Adenostoma sparsifolium Navin 1890-1-1 s.n. Riverside San Jacinto Mts. Comment
  CSUSB1856  Adenostoma sparsifolium Ned Curtis 1974-7-19 Riverside San Jacinto Mountains San Jacinto Mountains 1523 Comment
  POM13406  Adenostoma sparsifolium E. C. Jaeger 1922-8-20 1005 Riverside North slope of San Jacinto Peak. 1372 Comment
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May 29 2011
  RSA416390  Agoseris grandiflora var. grandiflora Robert L. Rutherford 1944-7-2 1475 Riverside Palomar Mtn. 1066 Comment
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Jun 15 2013
  UC29361  Agoseris heterophylla var. heterophylla H. M. Hall 1901-6-1 2038 Riverside meadows of the s side San Jacinto Mountains 1341 Comment
  UC832673  Agoseris heterophylla var. heterophylla P. A. Munz and I. M. Johnston 1922-5-20 5479 Riverside Kenworthy; San Jacinto Mts. 1417 Comment
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Mar 25 2011
  RSA131724  Agrostis pallens E. K. Balls 1958-6-27 23301 Riverside Between Santiago Peak and Indian Truck Trail, along Main Divide, Santa Ana Mountains. 1372 Comment
  RSA535467  Agrostis pallens Steve Boyd, Timothy S. Ross, Orlando Mistretta 1992-2-2 6652 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Lower half of Tenaja Canyon, especially about Fishermans Camp. Comment
  UCR168614  Agrostis viridis T. B. Salvato, John F. Green 2004-5-27 576 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
  UCR171136  Ailanthus altissima John F. Green 2005-5-17 s.n. Riverside Perris-Aguanga Basin, Markham Pit; Gravel pit on SE corner of Markham Street and Day Street, south of March Air Force Base 537 Comment
  UCR74356  Allionia incarnata Theo Glenn 1991-5-2 91- 33 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  SD130878  Allium fimbriatum var. munzii Craig Reiser 1991-4-25 Riverside Gavilan Plateau, south edge of Harford Springs Park, south of Ida Leona Road, east of Gavilan Road. Rocky opening in chaparral. (IPB 2/08) Comment
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Apr 2 2011
  POM230635  Allium munzii I. W. Clokey, B. C. Templeton, C. B. Clokey 1930-4-15 4621 Riverside Gavilan Peak. 600 Comment
  CAS-BOT-BC132054  Allium peninsulare var. peninsulare John Thomas Howell 1930-5-10 4792 Riverside St. John's Grade Comment
  CAS-BOT-BC475413  Allium praecox Mrs. Wilder 1905-4-1 s.n. Riverside Riverside, Calif. Comment
  CDA7194  Allium roseum A. C. Sanders 1999-4-28 22709 B Riverside UCR Botanic Garden, Riverside. Comment
  POM161529  Allophyllum divaricatum Ralph Hoffmann 1929-9-6 s.n. Riverside Tahquitz Valley, San Jacinto Mts. 2438 Comment
  RSA559342  Allophyllum glutinosum Steve Boyd, T. S. Ross 1992-5-15 7400 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. 670 Comment
  UC2030123  Alopecurus aequalis Robert F. Thorne, J. P. Simon, and C. W. Tilforth 1969-6-24 38145 Riverside SAN JACINTO MOUNTAINS: San Bernardino National Forest. Lake Fulmor. Comment
  SEINET10940478  Amaranthus David B. Dunn 1947-10-9 Dunn 3527 Riverside Joshua Tree National Monument at campground area by Hidden Valley. Comment
  CLARK-A1528-7784  Amaranthus albus John C. Roos 1965-7-27 Riverside Hemet Comment
  RSA544288  Amaranthus albus Steve Boyd, Timothy S. Ross 1991-6-14 6359 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 Spings. Comment
  SDSU13826  Amaranthus blitoides W. Miller, C. Mosse 1972-8-9 Riverside Comment
  SD146059  Amaranthus palmeri Mitch Provance 1998-9-5 1028 Riverside City of Riverside; Hillside area,. along the south side of Dewey Street between Streeter Ave. and Palm Ave. 238 Comment
  UCR272196  Amaranthus powellii Duncan S. Bell 2015-9-30 8659 Riverside Santa Rosa Mountains, summit area of Asbestos Mountain 1573 Comment
  RSA500136  Amaranthus retroflexus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-10 3674 Riverside Vail Lake area, Temecula Creek canyon below the dam. 459 Comment
  UCR115993  Amaranthus watsonii A. C. Sanders, G. K. Helmkamp, Pam MacKay 1995-3-12 16077 A 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
  UCR109521  Ambrosia confertiflora R. D. Goeden, Don W. Ricker 1970-4-2 s.n. Riverside Moreno Badlands, W of Beaumont, south side of Hwy 60, 2 miles west of Jackrabbit Trail 686 Comment
  CAS-BOT-BC22377  Ambrosia dumosa I. Johnston 1917-4-4 1034 Riverside Mouth of Andreas Canyon 243 Comment
  RSA1223  Ambrosia dumosa B. D. Stark 1930-4-1 773 Riverside San Gorgonio Pass. 457 Comment
  RSA796018  Ambrosia dumosa Duncan S. Bell 2009-4-18 245 Riverside Arica Mountains; northeast of range, approximately 2.25 air miles southwest of the ghost town of Rice. 224 Comment
  RSA615546  Ambrosia pumila Fred M. Roberts 1997-6-29 5043 Riverside Warm Springs Valley: Nichols Road, 0.3 km by road W jct. I-15 near head of Walker Canyon, ca 2.8 km NW Lake Elsinore. 117 Comment
  CAS-BOT-BC272881  Ambrosia salsola J. Beley 1974-2-20 0436 Riverside Thousand Palms Rd. at 230 Ku Line Comment
  JEPS30459  Ambrosia salsola Peter H. Raven 1958-1-23 11414 Riverside 2.7 mi w Whitewater Post Office Comment
  UCR262462  Ambrosia salsola A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41505 Riverside San Gorgonio Pass, north of San Gorgonio River wash, c. 3 miles east of Cabazon, south of I-10 and generally NE of water bottling plant 457 Comment
  UCR263511  Ambrosia salsola Aaron C. Sedgwick, Brett Griffin 2012-3-28 024 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road. c. 6 miles south of Hwy I-10 323 Comment
  UC897999  Ambrosia salsola var. pentalepis I. W. Clokey 1935-4-17 6985 Riverside Cottonwood Springs Comment
  SBBG44967  Ambrosia salsola var. salsola E. Braunton -Mar-1940 2044 Riverside Fan Cyn, ca. 20 mi NE of Indio Comment
  SBBG8467  Ambrosia salsola var. salsola H. and M. Dearing 1936-12-25 2334 Riverside Long Cyn, Colorado Desert Comment
  RSA7751  Ammannia coccinea C. M. Dammers 1933-12-4 s.n. Riverside Growing wild in center of city of Riverside Comment
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Nov 23 2010
  UCR188890  Ammannia coccinea Fred M. Roberts, S. Leatherman 2007-9-19 6579 Riverside Santa Ana Canyon, Santa Ana River, across from Green River Golf Course, 0.15 km W of Green River Road bridge 128 Comment
  SD84908  Amorpha californica Nancy Ryan Zabriskie, Walter Zabriskie 1971-8-21 441 Riverside Santa Rosa Mountains, Palm Canyon drainage, above Garnet Queen Cr. crossing of Santa Rosa Mountain Road 1830 Comment
  CAS-BOT-BC180626  Amorpha californica var. californica Steve Boyd; Tim Ross 1992-5-15 7403 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 670 Comment
  RSA91359  Amorpha fruticosa F. W. Peirson 1919-4-12 702 Riverside Palm Canyon, near Palm springs. Comment
  SBBG87472  Amsinckia intermedia A. C. Sanders with Pitzer, Charlton, Kniffen 1986-3-3 6085 Riverside Corn Spring, wash below the spring and wash and rocky slopes to the S; Chuckwalla Mtns 487 Comment
  UCR250885  Amsinckia intermedia S. J. Myers, Jennifer Tobin, Michelle Tobin 2013-3-13 1049 Riverside Lakeview Mountains, along powerline access road 0.5 mi. NE of intersection of Contour Ave. & Truffaut Dr, c. 1 mi. NE of Juniper Flats Rd. 628 Comment
  UCR140691  Amsinckia menziesii A. C. Sanders 2004-5-12 27859 Riverside Elsinore Basin Region, Alberhill Mountain, northwest foot near Lake St. at Alberhill 378 Comment
  LA202847  Amsonia tomentosa Martha Hilend; 1932-3-25 sn Riverside Chuckawalla Mts. about 3 mi. above Corn Spring Comment
  SJSU15324  Anaphalis margaritacea B. SMith 1986-4-21 39 Riverside 1 mile east of Blair Valley. 975 Comment
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Aug 19 2015
  SD123833  Andropogon glomeratus var. scabriglumis Robert F. Thorne, Kay L. Wright, Richard K. Benjamin 1982-10-8 55407 Riverside San Bernardino Mountains, along roadside at seep, about 3.2 miles north of Whitewater Post Office. 594 Comment
  UCR180054  Anemopsis californica Mitch Provance 2005-5-18 9801 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
  CAS-BOT-BC79933  Antennaria microphylla H. M. Hall 1901-7-1 2401 Riverside Tamarack Valley 2834 Comment
  RSA0000863  Antennaria speciosa H. M. Hall 1901-07 2401 Riverside San Jacinto Mountains. Tamarack Valley. 2835 Comment
  RSA32422  Antirrhinum coulterianum N. C. Cooper 1944-5-21 1271 Riverside San Jacinto Mountains, west side. 1220 Comment
  UCR81110  Antirrhinum coulterianum Scott D. White 1993-5-29 1455 Riverside San Bernardino Mtns, Banning Canyon & Big Oaks Canyon along the road to Raywood Flat on Yucaipa Ridge 1220 Comment
  POM312020  Antirrhinum filipes Karen Hosterman 1958-4-5 1248 Riverside Teddy Bear Cholla Patch in desert Comment
  RSA0123683  Antirrhinum filipes Duncan S. Bell, LeRoy Gross 2016-3-9 8858 Riverside Orocopia Mountains; northwestern section of the range, approximately 6.5 air miles southwest of Chiriaco Summit, collecting in the area know as Hotel California. 775 Comment
  UCR279499  Antirrhinum filipes A. C. Sanders, Jim Malusa 2017-3-25 43008 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
  UC1929409  Antirrhinum nuttallianum Scott D. White 2004-4-26 10259 Riverside San Jacinto Mountain Foothills: Soboba Indian Reservation, Indian Creek Watershed. Comment
  UCR119363  Antirrhinum nuttallianum A. C. Sanders 1997-3-19 20050 Riverside Lake Skinner area, NE of Bachelor Mtn., small canyon below dry falls, north of dirt track off road from Rawson Cyn. 503 Comment
  POM354919  Antirrhinum nuttallianum subsp. nuttallianum J. D. Olmsted 1962-5-10 3648 Riverside Crest between Sandia Creek and DeLuz Creek drainages. 259 Comment
  RSA523366  Antirrhinum nuttallianum subsp. nuttallianum G. H. True 1935-4-17 242 Riverside Mockingbird Canyon. 457 Comment
  SDSU13336  Antirrhinum nuttallianum subsp. nuttallianum Tom Duffy, Tarja Sagar 2000-4-29 3 Riverside Two hundred meters NE of Santa Margarita Ecological Reserve North field Station. 320 Comment
  RSA737117  Apium graveolens Justin M. Wood 2008-10-15 183 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  UCR113850  Apium graveolens Mitch Provance 2000-6-24 2054 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  UCR172003  Arabidopsis thaliana A. C. Sanders 2006-5-1 32248 Riverside Riverside, south side of UCR campus behind botany greenhouses 366 Comment
  CLARK-A1528-2291  Arabis pulchra John C. Roos 1962-3-24 Riverside Whitewater Comment
  UCR172752  Arabis sparsiflora Abby Sirulnik 2000-5-7 33 Riverside Peninsular Ranges; San Jacinto Mtns., c. 1/4 mi. down first road off of Poppet Flat Road (off Calif. Hwy 243 near Twin Pines) 1220 Comment
  RSA629382  Arctostaphylos glandulosa Jon E. Keeley 1992-4-17 15084 Riverside End of Woodchuck Road, Woodchuck Resort. 2 km south of Highway 79. 670 Comment
  RSA629435  Arctostaphylos glandulosa Jon E. Keeley 1992-7-17 16849 Riverside Hwy 243, 39-40 km north of Idyllwild. 1375 Comment
  RSA629452  Arctostaphylos glandulosa Jon E. Keeley 1992-7-17 16811 Riverside Rd. to Thomas Mtn. (5S15), 9.5 km north of Toolbox Spring. 1640 Comment
  RSA635600  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1992-7-17 16754 Riverside Road to Thomas Mtn. (5S15), 1.8 km south of Toolbox Spring, west of Garner Valley, San Jacinto Mountains. 1785 Comment
  CAS-BOT-BC23113  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-21 17984 Riverside Along road from Vandeventer Flat to Santa rosa Peak 2072 Comment
  SD152872  Arctostaphylos glandulosa subsp. glandulosa Steve Boyd 1993-3-14 7727 Riverside Southern Santa Ana Mountains, northeastern corner of the silderness, wouth of Elsinore Peak. 975 Comment
  SD255138  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, E. W. Lathrop 1977-5-18 49727 Riverside Santa Ana Mountains: Bear Spring (east slope of Santiago Peak). Comment
  POM254920  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-13 s.n. Riverside Northwest Santiago Peak, Santa Ana Mts. 1735 Comment
  RSA631806  Arctostaphylos glauca Jon E. Keeley 1992-9-27 21811 Riverside Highway 74 at Pinyon Flats, southwest of Palm Desert. 1290 Comment
  UCR275943  Arctostaphylos glauca T. B. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-26 3790 Riverside San Jacinto Mountains, Rouse Ridge, east of Rouse Hill on 4WD road 2E17 (becoming a foot trail), c. 0.7 mile north of Rouse Ridge Road (5S15), NE of Milky Spring, San Bernardino National Forest 1476 Comment
  POM307249  Arctostaphylos parryana subsp. desertica Henry J. Ramsey, Henry J. Ramsey 1937-5-22 2240 Riverside Santa Rosa Mountains Comment
  RSA633524  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Rx Rothrock 1992-11-11 22513 Riverside Andreas Canyon, ca. 5 km east of Saddle Junction, San Jacinto Wilderness area, eastern San Jacinto Mountains. 1950 Comment
  RSA633553  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-9-27 21795 Riverside Dirt road to Santa Rosa Mountain, 12.3 km southeast of Highway 74, northwest side of Santa Rosa Mountains. 2190 Comment
  RSA633567  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20142 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  RSA633630  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Melanie Baer-Keeley 1993-4-23 22658 Riverside Road to Santa Rosa Mountain. 2000 Comment
  RSA633659  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16667 Riverside Road to Santa Rosa Mountain (7S02), 8.7 km south of Highway 74. 1935 Comment
  CAS-BOT-BC44370  Arctostaphylos pringlei subsp. drupacea C. B. Wolf 1932-8-4 3922 Riverside Strawberry Valley, one and one-half miles from Idyllwild on road to Banning, San Jacinto Mts. 1706 Comment
  CSUSB1396  Arctostaphylos pringlei var. drupacea Markell Kohn 1959-4-19 Riverside On Banning- Idllywild Road, 2.8 miles north (below) of Grande Vista Ranger Station. Comment
  UCD50808  Arctostaphylos pringlei var. drupacea C. B. Wolf 1932-8-4 3922 Riverside Strawberry Valley, one and one-half miles from Idyllwild on road to Banning; San Jacinto Mts. 1706 Comment
  JEPS48072  Arctostaphylos pungens Lauramay T. Dempster and G. L. Stebbins 1966-6-19 4262 Riverside 1 mi se Toro Peak Ridge; Santa Rosa Mts. 2286 Comment
  RSA636002  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19549 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636166  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19464 Riverside West of Temecula, off Carancho Rd., west of De Luz Rd., eastern Santa Margarita Mtns. 460 Comment
  UCR101403  Arenaria douglasii A. C. Sanders 1997-4-10 20328 Riverside Tucalota Hills, east of Lake Skinner 701 Comment
  RSA0122711  Argyrochosma jonesii Duncan S. Bell, LeRoy Gross 2016-3-30 9149 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 7.5 air miles southeast of the summit of Martinez Mountain. 970 Comment
  CAS-BOT-BC207126  Argythamnia lanceolata John Thomas Howell Jan. 29 1 (rest of year torn off sheet) 3298 Riverside Painted Canyon, Colorado Desert Comment
  OBI75985  Aristida adscensionis James M. Andre 2011-2-9 15906 Riverside Mecca Hills; along Box Cyn Rd at upper end of gorge, approx 6 mi SSE of jctn with I-10, approx 12 mi W of Chiraco Summit 284 Comment
  RSA786536  Aristida adscensionis C. P. Cowan 1978-4-23 1225 Riverside 12.1 mi (19.2 km) S on Hwy 74 from jct with Hwy 111 at Indian Wells. Whittaker transect no.W-220 (voucher). 950 Comment
  UCR275540  Aristida adscensionis D. E. Bramlet 2010-3-1 4455 Riverside Sonoran (Colorado) Desert, West Berdoo Canyon, Little San Bernardino Mtns., c. 6 air miles north of Indio 366 Comment
  RSA0065567  Aristida adscensionis Tom Griggs 1968-5-9 s.n. Riverside Palms to Pines Hwy. Comment
  POM7039  Aristida adscensionis var. modesta P. A. Munz, L. T. Street, G. Williams 1919-3-26 2359 Riverside Salton Sea. Comment
  UCR90325  Aristida californica Ed LaRue 1993-4-29 s.n. Riverside Sonoran (Colorado) Desert, Blythe landfill, along Blythe-Midland Road, 3 mi. south of the Big Maria Mtns, 6 mi. west of Colorado River 137 Comment
  SEINET14176506  Aristida californica N. H. Holmgren, Patricia K. Holmgren, R. E. Kern 1973-3-22 6457 Riverside Rice Valley, 7 mi SSW of Rice 274 Comment
  CLARK-A1528-7798  Aristida purpurea var. nealleyi John C. Roos 1949-4-11 4242 Riverside Hayfield Comment
  SEINET10933044  Aristida purpurea var. nealleyi Charles L. Hitchcock 1940-3-30 Hitchcock 5871 Riverside Cottonwood Spring. Comment
  UC815721  Aristida purpurea var. parishii P. A. Munz and D. Keck Apr 9 1922-Apr 12 1922 4906 Riverside vicinity of Corn Springs (Chuckwalla Mts.); Colorado Desert, Chuckwalla Mts. 609 Comment
  RSA289831  Artemisia ludoviciana subsp. albula B. A. Prigge 1980-8-25 4025 Riverside San Gorgornio Pass: 1 mi. SE of Fingal siding, S Pacific R.R. 451 Comment
  RSA692221  Artemisia ludoviciana subsp. incompta Scott D. White 2003-10-9 9824 Riverside Pine Cove. Lily Creek just north of crossing at Hwy 243. 1738 Comment
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May 1 2014
  UCR100165  Artemisia tridentata Scott D. White 1992-12-16 982 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
  POM96736  Artemisia tridentata subsp. tridentata E. C. Jaeger 1925-11-9 s.n. Riverside Dripping Spring, S.W. Riverside Co. Comment
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Jul 11 2013
  SEINET10513658  Arundo donax David B. Dunn 1947-2-9 Dunn 2851 Riverside Pushawall canyon. Indio hills. By lower part of stream. Comment
  CLARK-A1528-1461  Asclepias albicans John C. Roos 1946-12-21 3190 Riverside Colorado Desert Comment
  CLARK-A1528-7777  Asclepias albicans John C. Roos 1965-7-23 Riverside Eagle Mountains Comment
  UCR4613  Asclepias albicans John Dean 1965-1 s.n. Riverside Eastern Colorado Desert, Hwy 95, 20 mi. north of Blythe, near Blythe [Palo Verde] intake dam 153 Comment
  UCSB4912  Asclepias albicans Haller, John 1958-3-22 Riverside Near U.S. highway 60-70, 7 miles east of Box Canyon road junction (Calif. 195) 365 Comment
  POM3649  Asclepias californica I. M. Johnston 1918-5-30 s.n. Riverside Temescal Canyon 365 Comment
  RSA714008  Asclepias californica Elbert Benjamine 1929-5-18 221 Riverside Mt. San Jacinto. 1524 Comment
  RSA0104745  Asclepias eriocarpa Scott D. White, Justin M. Wood 2008-7-8 12384 Riverside San Jacinto Mountains: Hurkey Creek Watershed-Bonita Vista Rd, ca 1/2 miles E and W of Hurkey Creek crossing. 1512 Comment
  JEPS5077  Asclepias subulata W. L. Jepson 1928-4-23 12547 Riverside Shaver Well Colorado Desert Comment
  RSA796747  Asclepias subulata J. Andre 2012-4-11 20843 Riverside Orocopia Mountains: north end of range, along dirt road 2.8 mi due south of I-10 at Box Canyon Rd/Cottonwood Rd Exit. 624 Comment
  CDA2687  Asphodelus fistulosus A. C. Sanders, T. B. Salvato 2001-5-24 24371 Riverside Perris-Aguanga Basin; Temecula, Long Canyon area west of Del Rey Rd. along Avenida Buena Suerte. Comment
  RSA417618  Aster alpigenus var. andersonii Anstruther Davidson 1876-7-7 s.n. Riverside Strawberry Valley. Comment
  UCR110394  Aster bernardinus A. C. Sanders, Mitch Provance 1999-9-26 23078 Riverside San Jacinto Mountains, McMullen Flat c. 1 km NW of Valley High County Park, c. 1 km SE of Hwy 74 off (W of) Twin Pines Ranch Rd. 1195 Comment
  POM4794  Aster subulatus var. ligulatus Geo. R. Hall 1905-09 s.n. Riverside Riverside Comment
  CAS-BOT-BC177460  Astragalus aridus Roxana S. Ferris; Rimo Bacigalupi 1958-3-19 13229 Riverside 2.4 mi. S of Rice, on road to Midland and Blythe Comment
  SEINET898792  Astragalus didymocarpus H. M. Hall 1905-1 5763 Riverside Palm Springs. Colorado Desert. 152 Comment
  CAS-BOT-BC182632  Astragalus didymocarpus var. obispoensis K. Watkins; E. McClintock 1937-4-9 s.n. Riverside Pasture 1 mi. West of San Jacinto Comment
  CDA26659  Astragalus douglasii var. parishii E. Bryant Jr. 1967-12-1 Riverside About 4 miles north of Keene s Summit, south of Idylwild on road from Hemet. 0 Comment
  RSA642086  Astragalus douglasii var. parishii Orlando Mistretta, Mark Elvin 1995-6-19 1777 Riverside Highway 74. 1418 Comment
  RSA585886  Astragalus gambelianus D. L. Banks, S. D. Boyd 1995-5-9 0320 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-BC186900  Astragalus insularis var. harwoodii Noel H. Holmgren; Patricia K. Holmgren; Ruth E. Kern 1973-3-22 6454 Riverside Rice Valley, 7 miles south-southwest of Rice 274 Comment
  SD43742  Astragalus insularis var. harwoodii Darley F. Howe 1949-3-21 1973 Riverside 3.0 miles west of Blythe. Comment
  UCR124650  Astragalus lentiginosus var. coachellae B. C. Templeton, I. W. Clokey 1930-4-9 1072 Riverside Sonoran (Colorado) Desert, San Gorgonio Pass, near Palm Springs Station 305 Comment
  CAS-BOT-BC192757  Astragalus palmeri S. B. Parish 1914-3-30 9096 Riverside San Felipe, Colado Desert Comment
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Aug 6 2019
  CDA26729  Astragalus palmeri T. C. Fuller 1963-4-23 10291 Riverside Sac Jacinto Mountains; Highway 47 to Palm Desert just east of Pinyon Flat. 0 Comment
  SEINET2043598 Image available Astragalus palmeri George K. Helmkamp, E. A. Helmkamp 1998-4-24 3379 Riverside Santa Rosa Mountains: Pinyon Pines along CA-74 between the San Jacinto & Santa Rosa Mountains. 1296 Comment
  CAS-BOT-BC194171  Astragalus pomonensis Scott D. White; Julie Greene 1997-3-12 4778 Riverside Near I-215 Freeway, S of Perris and N of Menifee, low hills E of Bavaria Dr., Sun City - Perris Basin 487 Comment
  POM50420  Astragalus pomonensis W. W. Eggleston 1924-3-8 19517 Riverside Val Verde. 390 Comment
  RSA779727  Atrichoseris platyphylla Duncan S. Bell 2009-3-8 95 Riverside Arica Mountains: center of mountain range in the vicinity of Priest Mine approximately 2 air miles west of Priest Well or approximately 7 air miles southwest of the ghost town of Rice. 467 Comment
  POM278675  Atriplex canescens Grant D. Brown 1950-3-4 484 Riverside Approximately 10 miles N of Blythe on hyway #95 near water intake plant. 91 Comment
  RSA452447  Atriplex canescens H. de Faust 1932-8-27 s.n. Riverside Desert side of Beaumont- Banning Pass. Beyond Cabazon. Comment
  RSA713995  Atriplex canescens A. C. Sanders 2005-2-26 29128 Riverside Sonoran (Colorado) Desert: SE of Hwy 117 towards dunes above Palen Dry Lake, SE end of Coxcomb Mtns. 168 Comment
  UC1329988  Atriplex canescens James E. Cole 1941-10-20 933 Riverside Optimist Mine Road Joshua Tree National Monument, Lost Horse Valley (Lost Horse Valley, Joshua Tree National Monument) 1310 Comment
  RSA520929  Atriplex coronata var. notatior D. E. Bramlet 1990-7-20 2054 Riverside California Dept. of Fish and Game, San Jacinto Wildlife Area. Populations are found just west of the old San Jacinto river channel and adjacent to the first waterfowl pond. 476 Comment
  SD152629  Atriplex coronata var. notatior Craig Reiser 2000-9-7 Riverside Hemet, northwest corner of California and Stowe streets Comment
  UCR264469  Atriplex elegans Jeremiah George 2014-12-11 s.n. Riverside San Gorgonio Pass Region, Beaumont, just south of West 4th St. at end of small paved spur road, area boxed in by commercial development 772 Comment
  POM47247  Atriplex elegans var. fasciculata Mary F. Spencer 1920-3-12 1508 Riverside Mecca. Colorado Desert -60 Comment
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Sep 7 2011
  RSA746520  Atriplex glauca R. E. Riefner Jr. 2005-12-30 5 -792 Riverside City of La Sierra, Gramercy Pl. near La Sierra Ave. 227 Comment
  CAS-BOT-BC170259  Atriplex hymenelytra Roxana S. Ferris 1918-6-14 987 Riverside At Shavers Well, Box Canyon in Chocolate Mts. Comment
  RSA708483  Atriplex hymenelytra Scott D. White, Brian Leatherman 2005-5-4 11016 Riverside Eastern Coachella Valley. Thermal area; bajada below Mecca Hills and East of the Coachella Canal. 24 Comment
  SBBG118903  Atriplex hymenelytra S. Boyd with T. Morgan, A. Virgen, S. DeGroot, V. Arvizu, T. Thibault 2004-5-14 11247 Riverside W base of the Chocolate Mtns, ca. 1.25 mi N of Imperial County line, ca. 3.75 mi W of aqueduct, accessed by dirt rd of main aqueduct rd at siphon station, within boundaries of US Navy's Chocolate Mtns Aerial Gunnery Range (33 26'42.7N, 115 38'06.2"W) 490 Comment
  SEINET4135079  Atriplex hymenelytra David B. Dunn, H. E. Brown; E. McClintock 1947-3-16 2862 Riverside Pushawalla Canyon, Indio Hills.; 0 Comment
  UCR196353  Atriplex hymenelytra Naomi Fraga, Lisa Rojas 2005-2-10 1379 B Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 365 Comment
  POM278759  Atriplex lentiformis Grant D. Brown 1950-3-5 489 Riverside 3 miles east of Indio on hyway #60/70. -9 Comment
  CLARK-A1528-2549  Atriplex polycarpa John C. Roos 1943-12-19 2763 Riverside Mecca Hills Comment
  RSA778411  Atriplex polycarpa Stephanie Rockwood, Christi Gabriel 2011-10-5 57 Riverside Corn Springs Campground. Corn Springs exit from I10. Chuckwalla Mountains Wilderness. 497 Comment
  UC1076221  Atriplex polycarpa Margaret Stason 1927-2-12 Riverside Thousand Palms Colorado Desert, Thousand Palms Comment
  POM278972  Atriplex rosea Grant D. Brown 1950-12-2 587 Riverside Cajalco Resevoir, SE; Cajalco Canyon. 442 Comment
  RSA609954  Atriplex serenana var. davidsonii D. Bramlet 1995-6-21 2442 Riverside San Jacinto Wildlife Area, Lovell Unit; 1.4 km E of Davis Road and 152 m S of the existing access road; 579 m N of the San Jacinto River channel. 43 Comment
  UCR125305  Atriplex suberecta A. C. Sanders 2002-11-21 25646 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy' at the confluence of Bixby and Anderson Canyons 366 Comment
  UCR93049  Atriplex suberecta Steve Boyd 1986-4-19 1721 Riverside Peninsular Range, Temescal Canyon, Warm Springs Valley, Alberhill Creek east of Nichols Road 366 Comment
  RSA612727  Atriplex suberecta H. C. Stutz 1989-1-18 9557 Riverside 1/2 mile E of Perris. Comment
  UCR4328  Atriplex triangularis O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  RSA0067890  Avena barbata Starr Streight 1982-4-17 20 Riverside Cajalco Road, 0.7 miles east of I-15; South of Corona. Comment
  SEINET6188286 Image available Avena barbata Orlando Mistretta, D. Bell, J. Beckman, J. England, K. Kane, J. Hall, C. McDonald, L. Reccia, L. Rodriguez, A. Sall, T. Tennant. 2010-1 4467 Riverside Transversa Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. 488 Comment
  UCD56268  Avena fatua Peter Kamb 1948-2-1 759 Riverside San Bernardino/Riverside Co.: Valley in the Jurupa Mts. West of Colton. Upper Sonoran Zone. 304 Comment
  CAS-BOT-BC213218  Ayenia compacta Edmund C. Jaeger 1922-10-15 s.n. Riverside Tacquitz Canyon, Palm Springs Comment
  CAS-BOT-BC98786  Baccharis brachyphylla Edmund C. Jaeger 1938-11-10 s.n. Riverside South base of Chuckwalla Mts. 274 Comment
  POM243559  Baccharis brachyphylla E. C. Jaeger 1938-10-21 s.n Riverside Joshua Tree National Monument. 12 miles south of Warrens Well. In rocky gulches. Comment
  UCR262331  Baccharis brachyphylla Duncan S. Bell, John Anderson, Kim Clark, Ed Howland 2013-9-29 6037 Riverside Colorado (Sonoran) Desert, Chuckwalla Mountains, south side of Corn Springs Wash, c. 3 air mi west of Corn Springs, and c. 0.5 air mi south of Aztec Well 659 Comment
  CLARK-A1528-1623  Baccharis emoryi John C. Roos 1948-11-6 4077 Riverside Box Springs Mountains Comment
  CLARK-A1528-1625  Baccharis emoryi John C. Roos 1937-9-12 Riverside Santa Ana River Comment
  RSA44349  Baccharis emoryi W. I. Follett 1948-10-31 s.n. Riverside 7.3 miles W & 7.4 miles S of Blythe Comment
  JOTR29284  Baccharis salicifolia La Doux, Tasha 2003-9-4 1574 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam 1280 Comment
  RSA180328  Baccharis salicifolia E. W. Lathrop 1965-3-30 5604 Riverside 14 miles W of Murrieta. Comment
  RSA657170  Baccharis salicifolia Bob Rogers 1984-4-14 5 Riverside Collected in the San Jacinto river-bed on the North side of Hwy 74, 0.6 miles past Cranston ranger station going east from Hemet towards Mountain Center 610 Comment
  UCR174351  Baccharis salicifolia A. C. Sanders 2006-5-19 32392 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
  SEINET2045190 Image available Baccharis sarothroides B. Pitzer 1996-11-11 2931 Riverside Orocopia Mountains: Salt Creek Wash, at intersection w/SR211, 4 rd. mi. S of Bob's Cabin. Hayfield 15'USGS Quad.:T7s,R14ESW/4, S7 274 Comment
  SEINET899324  Baccharis sarothroides C. B. Wolf 1932-1 4298 Riverside Pinyon Wells, Little San Bernandino Mts. (Conchilla Mts.) 1219 Comment
  CAS-BOT-BC99873  Baccharis sergiloides L. A. Greata 1904-9-1 s.n. Riverside Banning Comment
  SD40772  Baccharis sergiloides Carl B. Wolf 1932-10-11 4271 Riverside Morongo Wash, Little San Bernardino Mountains. 669 Comment
  SEINET899355  Baccharis sergiloides C. B. Wolf 1932-1 4272 Riverside Colorado Desert. Little San Bernandino Mts. Morongo Wash, 3/10mi. Below San Bernandino Co. line 671 Comment
  UC893813  Baileya pauciradiata unknown 1932-3-26 Riverside Coachella Comment
  SBBG25795  Baileya pleniradiata E. R. Blakley 1966-4-9 6753 Riverside jct of US Hwy 60-70 and Wiley Well Rd, ca. 15 mi W of Blythe 121 Comment
  UCR274531  Bassia hyssopifolia Mitch Provance, Ken Halama 2003-6-15 17069 Riverside Temescal Mountains, Mead Valley, just SSW of the corner of Cajalco Rd. and Wood St. Comment
  UCR275528  Bassia hyssopifolia A. C. Sanders, Karen Kirtland 2016-9-23 42627 Riverside San Jacinto Valley, edge of Mystic Lake at duck hunting ponds below abandoned dairy south of Gilman Springs Rd. between Jack Rabbit Tr. and Eden Hot Springs Rd. 434 Comment
  POM308551  Bebbia juncea Henry J. Ramsey, Henry J. Ramsey 1939-11-28 3144 Riverside 10 miles east of Indio. Comment
  LA203074  Bebbia juncea var. aspera Martha Hilend; 1929-12-27 360 Riverside Shafer's Well Comment
  UC1746489  Bebbia juncea var. aspera Mitch Provance 1998-7-7 887 Riverside 1/4 to 1/2 mi from corner of Riverside Ave and Agua Mansa Rd.; Colton 262 Comment
  SEINET3862254  Beloperone californica D. W. McNeal 1975-4-18 1561 Riverside Above Palm Desert on Hwy. 74, 19.2 mi. E of its jct. with Hwy. 71.; 0 Comment
  SEINET3862256  Beloperone californica Lewis S. Rose 1946-12-24 46304 Riverside Palm Springs, Tahquitz Canyon Wash.; 0 139 Comment
  RSA662539  Bergia texana J. C. Roos 1952-5-28 5730 Riverside San Jacinto River bottomland 1 mile south-east of Perris. 427 Comment
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May 15 2016
  UCR126380  Blennosperma nanum var. nanum A. C. Sanders, W. W. Wright, J. Latting, et al. 1975-5-4 689 B Riverside Santa Rosa Plateau, Santa Ana Mtns., Mesa de Burro 610 Comment
  RSA525240  Bloomeria crocea Steve Boyd, Timothy S. Ross 1990-5-11 4617 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dripping Springs campground of Cleveland National Forest, S of Hwy. 79 549 Comment
  RSA0123695  Boechera perennans Duncan S. Bell, LeRoy Gross 2016-3-30 9163 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 7.5 air miles southeast of the summit of Martinez Mountain. 970 Comment
  UC922762  Boechera perennans Annie M. Alexander and Louise Kellogg 1940-3-21 883 Riverside 20 mi s 29 Palms; Barker Dam 1322 Comment
  RSA714627  Boerhavia coccinea B. Pitzer 2001-8-19 4338 Riverside Peninsular Range, Santa Rosa Mountains: Carrizo Canyon, sheep guzzler ca. 0.5 mi. SW of where Hwy 74 crosses canyon. 701 Comment
  CAS-BOT-BC540734  Boerhavia coulteri var. palmeri Sarah J. De Groot; Amy Rouillard 2015-9-15 7564 Riverside Ford Dry Lake, Chuckwalla Valley, N of I-10 106 Comment
  SD255216  Boerhavia coulteri var. palmeri Sarah J. De Groot, Amy Rouillard 2015-9-15 7564 Riverside Ford Dry Lake, Chuckwalla Valley north of I-10. 106 Comment
  RSA339328  Boerhavia intermedia Robert F. Thorne, Gertrud Dahlgren, R. Dahlgren 1979-8-22 53572 Riverside Joshua Tree National Monument: Just S of San Bernardino Co. line near jct of road to Split Rock and 29 Palms; Valley W of Pinto Mountains. 1098 Comment
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Apr 25 2011
  UCR59718  Boerhavia intermedia A. C. Sanders 1989-9-19 9511 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
  UC2026380  Boerhavia wrightii Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10051 C Riverside COLORADO DESERT, CHUCKWALLA MOUNTAINS: Northwest base of the range, south of Eagle Mine Road exit on Interstate 10. Comment
  CAS-BOT-BC145587  Bouteloua aristidoides J. C. Roos 1965-9-5 s.n. Riverside Desert Center. Comment
  UC1606976  Bouteloua aristidoides David Charlton 1988-2-18 1127 Riverside 1 mi e Jct. Dillon Rd. and Fargo Cyn Rd (s side of mts, Fargo Canyon Rd to Cottonwood Wash, s of Joshua Tree National Park, parallel to I-10); Little San Bernardino Mtns. 609 Comment
  RSA0099442  Bouteloua barbata Duncan S. Bell, Evan Meyer 2014-10-29 7696 Riverside Santa Rosa Mountains; collecting in Agua Alta Canyon, to the north of Martinez Canyon, about 6 air miles southeast of the summit of Martinez Mountain. 394 Comment
  SEINET10835065  Bouteloua barbata David B. Dunn 1946-3-15 Dunn 2027 Riverside Collected on dry plateau in vicinity of pushawalla canyon, indio hills, sparse Desert scrub of larrea and franseria, with palms at the springs in the canyon. Comment
  JEPS15397  Bouteloua barbata var. barbata Joseph and Hilda Grinnell 1937-11-30 1080 a Riverside 24 mi e Blythe (bed of lake); Chuckawalla Valley, Ford Dry Lake 106 Comment
  POM9226  Bowlesia incana I. M. Johnston 1920-5-8 2263 Riverside Box Springs Grade Comment
  CAS-BOT-BC520380  Brachypodium distachyon Steve Boyd 2011-3-30 12306 Riverside Coastal plains and basins; San Bernardino basin region: City of Riverside, residential lot at NW corner of Beechwood Place (4131) and Brockton Ave. 256 Comment
  OBI2994  Brandegea bigelovii Lewis S. Rose 1967-12-21 67187 Riverside 2 mi S of Palm Desert 61 Comment
  RSA0046719  Brandegea bigelovii Jim Andre 2014-1-27 26653 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
  RSA394253  Brandegea bigelovii Robert Gustafson 1978-3-21 842 Riverside Joshua Tree National Monument, about 3 miles north on the road leading through the park and Hwy 70. 640 Comment
  SDSU5829  Brandegea bigelovii D. F. Howe 1952-4-27 2188 Riverside Box Canyon, east of Mecca. Comment
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Jan 24 2013
  UC724362  Brandegea bigelovii Aven and Ruth Nelson 1939-3-28 3304 Riverside s of Mecca (near Salton Sea, Highway 111); Highway 111 Comment
  UCD107473  Brandegea bigelovii Lewis S. Rose 1967-12-21 67187 Riverside 2 mi. s. of Palm Desert. 60 Comment
  UCR102706  Brandegea bigelovii B. G. Pitzer 1998-1-24 3390 Riverside Sonoran (Colorado) Desert, N foot of Chuckwalla Mtns, Eagle Mt Rd, south side of Hwy I-10, 0.8 mi south of Hwy at powerline rd, & wash directly south of road 500 Comment
  CAS-BOT-BC29979  Brassica fruticulosa A. C. Sanders; Oscar F. Clarke 1989-4-5 9035 Riverside Box Springs Mountains, on the east edge of Riverside. At the end of the dirt road in Two Trees Canyon. Comment
  RSA0106891  Brassica nigra Daphne K. Christopher, Hannah Stevens 2003-4-4 95 Riverside UC Riverside, Motte Rimrock Reserve. Off Sage Rd. 530 Comment
  RSA381544  Brassica rapa O. F. Clarke 1987-3-16 s.n. Riverside Riverside. 1012 Spruce St. 305 Comment
  RSA496658  Brassica tournefortii A. C. Sanders 1988-1-30 7590 Riverside Eastern foothills of the Santa Ana Mountains, ca. midway between Murrieta and Temecula. Los Cerritos Ranch and adjacent 80-acre property to the NW; N of Cherry St., W of Adams Ave., S of Meadowlark Ridge Lane and Elm St. 328 Comment
  UCR148341  Brassica tournefortii John F. Green 2005-1-13 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, Coachella Canal right-of-way, between siphons 22 and 23, south of Salt Creek 23 Comment
  UC574884  Brickellia atractyloides C. Epling and Wm. Robison 1933-6-26 Riverside Key's View Little San Bernardino Mountains Comment
  CLARK-A1528-1661  Brickellia californica John C. Roos 1951-10-19 5324 Riverside Jackrabbit Trail 609 Comment
  RSA192010  Brickellia californica E. W. Lathrop 1966-5-15 6311 Riverside 3 miles SE of Murrieta on the De Luz Road. Comment
  JEPS88669  Brickellia desertorum Annie M. Alexander and Louise Kellogg 1938-12-11 267 Riverside Lost Palm Canyon 685 Comment
  LA203085  Brickellia desertorum Carl Epling; 1937-11-26 sn Riverside White Tank, Twentynine Palms Comment
  RSA16813  Brickellia desertorum C. B. Wolf 1931-10-14 3900 Riverside Snow Creek 1/2 mi. below the Fish Hatchery N base of San Jacinto Mountains. 549 Comment
  RSA89870  Brickellia desertorum J. C. Roos 1950-9-30 4996 Riverside Box Springs Grade 0.5 mile SE of Citrus Experiment Station Riverside. 396 Comment
  SBBG96025  Brickellia desertorum O. F. Clarke 1969-10-8 Riverside UC Riverside, S side of campus Comment
  JOTR01241  Brickellia incana Cole, James E. 1941-6-14 885 Riverside Joshua Tree National Park. QUAIL WASH 1066 Comment
  RSA198994  Brodiaea filifolia Robert F. Thorne, Philip A. Munz, E. W. Lathrop 1968-5-8 37586 Riverside Santa Rosa Plateau: on Mesa de Colorado, Rancho California 671 Comment
  RSA599130  Bromus carinatus V. W. Steinmann, D. L. Banks 1996-4-20 839 Riverside Agua Tibia Mountains, ca. 15 km east of Temecula, less than 1 km south of Route 79 at the Dorland Mountain Arts Colony, just southwest of the administration building., ca. 33?28'N, 117?01'W 550 Comment
  SBBG56586  Bromus carinatus M. N. Ackley 1929-5-19 Riverside Tahquitz Lodge 1524 Comment
  UCR2206  Bromus carinatus F. M. Reed 1906-3-4 903 Riverside Riverside, Fairmont Park 244 Comment
  SEINET3922492  Bromus grandis Scott D. White 1999-6-6 7446 Riverside San Jacinto Mts. Near Idyllwild Community Service Dist. sewage ponds at terminus of USFS Road 5S24.2.; 0 1433 Comment
  UCR101437  Bromus hordeaceus A. C. Sanders, G. Helmkamp 1997-3-15 20003 Riverside Peninsular Range, Lake Skinner, SE foot of Bachelor Mtn., just north of the lake 600 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
  UCSB18533  Bromus madritensis subsp. rubens Winn, Will 1963-5-4 Riverside County Hwy R-1, 13.3 mi N of Lake Fillmore 853 Comment
  POM7101  Bromus rubens P. A. Munz, L. T. Street, G. Williams 1919-3-28 2365 Riverside Cabazon. Comment
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Mar 13 2011
  UCR2243  Bromus rubens F. M. Reed 1907-6-16 1404 Riverside South Coast; San Bernardino Valley, Riverside, upper south fork of Arroyo Tequesquite 457 Comment
  SEINET14451730  Bromus rubens F. S. Crosswhite 1961-1-21 1707 Riverside Weed along Chicago Ave.; Riverside. 0 183 Comment
  SEINET13203270 Image available Bromus tectorum Steve Boyd, Carol Boyd 2011-1 12305 Riverside Traversa Ranges; San Bernardio Mountains region.: Southeast end of range in south branch of Mission Canyon, just upstream from confluence with north branch 762 Comment
  UC1979866  Bromus tectorum Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 879 Riverside Transverse Ranges; San Bernardino Mountains region: Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon. Comment
  POM305418  Caesalpinia virgata Henry J. Ramsey, Henry J. Ramsey 1939-11-28 753 Riverside 10 miles east of Indio. Comment
  RSA5167  Caesalpinia virgata C. B. Wolf 1932-4-26 s.n Riverside Colorado Desert: 5 mi. E of Mecca on Blythe rd. 30 Comment
  SEINET7347683  Caesalpinia virgata I. W. Clokey 1935-4-17 6717 Riverside Shafer Wells Comment
  POM123120  Calandrinia ciliata Marcus E. Jones 1882-4-24 s.n. Riverside Temecula Comment
  UCR228252  Calandrinia ciliata A. C. Sanders, T. B. Salvato 2011-4-1 38930 Riverside Peninsular Range, Lake Elsinore, near intersection of Pierce St., Baker St., and Nichols Rd., flats at south side of Alberhill Mtn. 389 Comment
  RSA167551  Calliandra eriophylla R. F. Thorne, Robert L. Rutherford 1964-4-12 33666 Riverside Along Hwy 60, south of Ford Dry Lake, west of Blythe. Comment
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Feb 22 2014
  RSA666511  Callisia repens A. C. Sanders 2001-11-20 24886 Riverside San Bernardino Valley region: Riverside, yard of house at 422 Campus View Dr. 341 Comment
  RSA0108365  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, Walter Wisura, Earl W. Lathrop, Sara Meury 1985-5-18 60638 Riverside Santa Rosa Plateau: Along seasonal stream in Cole Canyon, near entrance to Nature Conservancy Reserve. 530 Comment
  RSA482011  Calocedrus decurrens Richard Noyes, Laurel Arnseth 1988-9-10 722 Riverside Fern Basin Camp, 4 air miles northwest of Idyllwild 1875 Comment
  RSA572048  Calocedrus decurrens C. Epling 1931-10-4 246 Riverside Strawberry Valley, San Jacinto Mountains; on mountainside. 1584 Comment
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Sep 22 2013
  SD82892  Calocedrus decurrens Larry E. De Buhr 1972-2-25 500 Riverside Santa Rosa Mountains, along forest Road 7S02 above Cedar Springs 2345 Comment
  JOTR31119  Calochortus kennedyi var. kennedyi La Doux, Tasha, M. Harding, B. Truesdell, M. Wheeler 2010-5-12 2502 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Lower ridges at base of Quail Mountain; within old burn area between Lost Horse Valley and Juniper Flats (Stop 2) Comment
  CSUSB400  Calochortus splendens Bruce Freeman 1968-5-11 680511 5 Riverside Santa Ana Mountains Santa Ana Mountains. 7.7 miles from Washington Ave., in Murrieta, on road from Murrieta to De Luz. 182 Comment
  UCR20785  Calochortus splendens A. C. Sanders, Steve Boyd 1980-5-2 1417 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  UCR273986  Calochortus splendens Mitch Provance 2012-4-27 412- 31 Riverside The Badlands, Mt. Davis, southwest of Beaumont, about 1 mi S of I-10 and SR-60 interchange, just E of Davis Mountain Dr. and S of Westward Ave. 799 Comment
  RSA360017  Calochortus weedii Gale Sphon 1955-6-23 s.n. Riverside Horsethief Canyon, Elsinore Mountains. Comment
  UC63832  Calochortus weedii H. M. Hall 1895-6-9 Riverside Temescal Comment
  RSA680491  Calochortus weedii var. weedii Scott D. White, Michael Honer, Dylan Hannon 2003-6-24 9594 Riverside Mountains west of I-15 Freeway and immediately north of San Diego County boundary. 335 Comment
  POM311104  Calycoseris parryi H. K. Sharsmith 1952-4-10 4060 Riverside Smoke Tree Wash, ca 5 mi. NE of Cottonwood Spirngs, Joshua Tree National Monument 854 Comment
  SBBG104056  Calycoseris parryi D. Bramlet 1991-5-9 2134 Riverside North Domenigoni Hills, ca. 0.5 mi SE of end of Warren Rd, juct NE of large prominent peak in NW corner of section 31 and within an old quarry area 658 Comment
  UCR80032  Calycoseris parryi Theo Glenn 1991-5-2 91- 13 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  UCR137704  Calyptridium monandrum D. L. Banks, V. W. Steinmann 1997-3-13 1518 Riverside NW Palomar Mtns, Agua Tibia Mtns, Vail Lake area, N and just south of Hwy 79; hills (burned in the Vail fire of May 1996) east of the Dripping Springs alcove and west of Vail Lake Marina Rd 549 Comment
  SDSU18977  Calyptridium monospermum Michael G. Simpson, Jamie Hall, Michael Silveira, Lori Simpson 2007-6-16 2897 Riverside Tahquitz Meadow, San Jacinto Mountains, along trail, ca. 100 feet north of dry creekbed, ca. 0.5 mile north of Pacific Coast Trail, ca. 1.2 miles northeast of Taquitz Peak. 2408 Comment
  UC729873  Calyptridium monospermum Carl B. Wolf 1932-8-5 3983 A Riverside San Jacinto Peak, summit San Jacinto Peak; San Jacinto Mountains, San Jacinto Peak 3293 Comment
  UC7763  Calyptridium monospermum H. M. Hall July, 1901 2352 Riverside Tauquitz Valley; San Jacinto Mountains, Tauquitz Valley 2438 Comment
  UC851944  Calyptridium monospermum P. A. Munz 1922-7-7 6039 Riverside San Jacinto Peak 3291 Comment
  UCR120957  Calystegia macrostegia A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23887 Riverside Perris-Aguanga Basin region, Temecula, along east side of pipeline NE of Long Canyon, west of San Diego Aqueduct 381 Comment
  UCR250587  Calystegia macrostegia A. C. Sanders 2013-6-20 40834 Riverside Peninsular Range, Alberhill, along lower part of 'new' Nichols Rd. extension, just west of Collier Ave. intersection, NE of Pierce St. intersection 386 Comment
  UCR120172  Calystegia macrostegia subsp. intermedia Mitch Provance 1998-2-28 122 Riverside Jurupa Mountains, NE 'Wilder's Canyon', (what is sometimes referred to as the E fork of Pyrite Canyon) 351 Comment
  UCR265065  Calystegia sepium subsp. binghamiae Mitch Provance 2012-11-10 1112- 02 Riverside San Bernardino Valley, Riverside, Santa Ana River, Fairmont Park, N side of Lake Evans, adjacent to the bike path on the N side of Dexter Dr., just W of the American Legion and the historic Boy Scouts Camp. 241 Comment
  UCR172219  Camissonia bistorta John F. Green 2006-5-3 s.n. Riverside Peninsular Ranges, French Valley, unincorporated Riverside County; along San Diego Aqueduct right of way between Benton Road and the obvious drainage to the south 412 Comment
  UCR174163  Camissonia bistorta A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32640 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., vicinity of peak 2279 695 Comment
  RSA465966  Camissonia boothii subsp. condensata N. C. Cooper 1949-4-8 3298 Riverside Desert Center. 610 Comment
  RSA465969  Camissonia boothii subsp. condensata Lester Rowntree 1930-5-7 s.n. Riverside Colorado Desert, Hidden Springs Comment
  CLARK-A1528-3321  Camissonia brevipes John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  RSA136654  Camissonia brevipes subsp. brevipes Peter H. Raven 1958-3-1 11749 Riverside Colorado Desert. Alluvial fan along US Highway 95, 16.1 miles north of Blythe. Comment
  RSA543752  Camissonia californica Steve Boyd, T. S. Ross, Mike Hammitt 1991-5-2 6056 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
  UCR121083  Camissonia californica A. C. Sanders, Mark Elvin, M. S. Enright 2002-4-16 24969 Riverside The Badlands, Laborde Canyon and adjacent slopes and side canyons, 1 mile east of Mt. Eden, SW of Beaumont 610 Comment
  UCR72223  Camissonia cardiophylla Theo Glenn 1991-5-30 91- 118 A Riverside Sonoran (Colorado) Desert, Mule Mtns, 0.2 mi. east of the Opal Hill Mine, just north of the Imperial County line and west of Palo Verde 200 Comment
  SEINET10936397  Camissonia cardiophylla David B. Dunn 1946-2-22 Dunn 1964 Riverside Mud flats dry, caked, split. All american canal catch basin from desert Washes. Oracopia mts ne of the salton sea. Very arid country. Comment
  RSA775096  Camissonia claviformis Duncan S. Bell, Amber Swanson 2011-2-18 2034 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
  UCR118642  Camissonia claviformis George K. Helmkamp 1998-4-3 3081 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
  UCR84981  Camissonia claviformis A. C. Sanders, K. C. Rose, D. Woodard 1995-3-22 16217 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
  RSA175093  Camissonia claviformis subsp. yumae Robert F. Thorne 1963-3-29 32394 Riverside Ca. 7-8 miles E of Mecca, Mecca Hills. 152 Comment
  RSA343090  Camissonia hirtella Robert F. Thorne, Walter Wisura, Earl Lathrop, Sara Meury 1985-5-18 60624 Riverside Santa Rosa Plateau: Burned-over chapparral along Clinton Keith Road, near base of plateau. 427 Comment
  RSA585511  Camissonia hirtella D. L. Banks, Steve D. Boyd 1995-5-9 372 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., the Dorland Mtn area, W of the Dripping Springs Alcove, W of Woodchuck Campground. 793 Comment
  UCR158523  Camissonia hirtella A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30047 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
  RSA501032  Camissonia ignota Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3152 Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  UCR266476  Camissonia micrantha Mitch Provance, Matt Amalong 2015-3-25 315- 39 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
  SEINET242054  Camissonia pallida A. C. Sanders 2001-3-20 23854 Riverside Western Colorado Desert: Coachella Vly, Garnet, N side of 19th Ave, 0.5 mi (air) NW of intersxn of I-10 and Indian Ave. 235 Comment
  UCR126263  Camissonia pallida Nathan Moorhatch, John Green 2003-4-2 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, Whitewater River channel at Date Palm Drive in Cathedral City 91 Comment
  RSA137358  Camissonia pallida subsp. hallii David Gregory 1958-4-11 1 Riverside Sandy wash in side canyon off Morongo Canyon, northwestern Colorado Desert. Comment
  POM249978  Camissonia pallida subsp. pallida E. C. Jaeger 1938-5-30 s.n. Riverside Bill Kees Lookout [Keys View?], Little San Bernardino Mts. Comment
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Dec 14 2016
  RSA314653  Camissonia pallida subsp. pallida Robert F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55417 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  JOTR16760  Camissonia refracta Vanderspek & Youse 1964-4-19 s.n. Riverside Joshua Tree National Park. WILSON CANYON Comment
  UCR92486  Camissonia refracta George K. Helmkamp 1995-3-16 s.n. Riverside Sonoran (Colorado) Desert, Below Coxcomb Mtns., west of Rice Rd., 10.3 mi. NE of Desert Center 200 Comment
  UCR201453  Camissonia strigulosa Scott D. White, Justin M. Wood 2008-6-5 12080 Riverside San Jacinto Mountains, Garner Valley, Hwy 74 at Thomas Mountain Road, southwest corner of junction 1341 Comment
  UCR26486  Camissonia strigulosa A. C. Sanders 1981-5-20 2123 Riverside Agua Tibia Mountains Area, Wolf Valley, SE of Temecula, at the junction of Road S16 with the road to the Pechanga Indian Reservation 351 Comment
  SBBG35187  Camissoniopsis bistorta T. L. Secrest 1951-5-18 Riverside near Hemet Comment
  UC20431  Camissoniopsis bistorta H. M. Hall May 17 1901-Jun 1 1901 1909 Riverside Van Deventer's 1371 Comment
  SBBG37503  Camissoniopsis micrantha R. N. Muller 1967-4-8 Riverside ca. 2 mi W of St Hwy 62 on Mission Crk Rd, 4.7 mi N of jct between US Hwy 60 and St Hwy 62 579 Comment
  UC1122272  Camissoniopsis pallida subsp. pallida H. S. Yates 1937-3-23 6401 Riverside 2 mi n Palm Springs; San Jacinto Quadrangle Comment
  UCR272456  Camissoniopsis pallida subsp. pallida Cheryl Sevilla, Sarah J. De Groot 2015-2-18 015 Riverside San Bernardino Mountains, San Gorgonio Wilderness Area, the plain to the east of Mission Creek, 0.4 miles northwest of the Stone House 783 Comment
  CLARK-A1528-2300  Capsella bursa-pastoris John C. Roos 1966-3-24 Riverside Hemet Comment
  UCR216391  Capsella bursa-pastoris Mike Bell 2008-3-30 018 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau Ecological Reserve, 5 miles SW of Murrieta, Punta Mesa Trail 537 Comment
  UCR125999  Cardaria draba Robert Hamilton 2003-2-6 s.n. Riverside Riverside, vacant field on Monroe St. SE of California Ave. 232 Comment
  SEINET238999  Carduus pycnocephalus Unknown 1972-5-11 Riverside Box Springs Mtns.: Highgrove National Orange Co. property beyond E end of Palmyrita Ave. (San Bernardino South 7.5' Q.) 412 Comment
  SEINET7063425 Image available Carex A. G. Vestal 1947-3-30 s.n. Riverside West of Cahuilla Valley on Route 371. UTM Zone 11, 519809mE, 3708775mN. (WGS84/NAD83). 1045 Comment
  UCSB11402  Carex D. Breedlove 1961-7-29 870 Riverside WHERE IT CROSSES RIVERSIDE HWY 1 FULLER MILL CREEK 1645 Comment
  CAS-BOT-BC19172  Carex barbarae I. M. Johnston 1918-5-30 2022 Riverside Temescal Canyon (near Lee Lake). 335 Comment
  UC537214  Carex heteroneura M. E. Jones Sep 1933 Riverside San Jacinto Mts. Comment
  RSA680524  Carex praegracilis Scott D. White, Teresa Salvato, Lia DeMarco, Jessica Christian 2001-6-30 8649 Riverside Idyllwild area; Strawberry Fuelbreak between Inspiration Point and Strawberry Creek. I.e., southwest terminus of Double View Dr. west to creek. 1402 Comment
  RSA802260  Carex senta Duncan S. Bell, Caitlin Elam, Carrie Kiel 2013-6-5 5007 Riverside Strawberry Creek to the southwest of Strawberry Valley, about 2.4 air miles southwest of Idyllwild. 1534 Comment
  POM171282B  Castela emoryi I. M. Johnston 1930-6-15 3787 Riverside Hayfields, Mecca-Blythe Road Comment
  SEINET10582737  Castilleja affinis Rimo Bacigalupi 1952-4-1 Bacigalupi 3595 Riverside At edge of chaparral, southeastner end of Pauba Valley, along State Highway No. 71, 12 miles west of Aguanga. 427 Comment
  POM301823  Castilleja angustifolia James E. Cole 1942-5-10 957 Riverside Joshua Tree National Monument. 1341 Comment
  RSA655630  Castilleja foliolosa A. C. Sanders 2000-3-19 23318 Riverside Shipley-Skinner Reserve area: along old Rawson Rd. just N of Crown Valley, above Diamond Valley 579 Comment
  RSA771735  Castilleja foliolosa Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4779 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR233081  Castilleja minor subsp. spiralis T. B. Salvato, Richard Camacho 2011-6-12 5496 Riverside Peninsular Range, Temescal Canyon, N/S trending wash that extends from Temescal Canyon Road near the west end of Lee (Corona) Lake, south under the Hwy 15 overpass about 0.25 miles 372 Comment
  UCR24918  Castilleja minor subsp. spiralis A. C. Sanders 1980-7-18 1662 Riverside San Jacinto Mtns, Thomas Mountain; along a small dry creek in Spillway Canyon about 2 mi SW of Hwy 74 along Thomas Mountain Road 1463 Comment
  UCR126987  Catalpa bignonioides A. C. Sanders, Guy Bruyea 2003-6-12 26892 Riverside Perris-Aguanga Basin Region, Winchester, SE side of town between Simpson Ave. and Olive Ave., east of Hwy 79/Winchester Rd. 450 Comment
  HSC83100  Caulanthus cooperi A. C. Sanders, Pitzer, Charlton, Kniffen, Stewart 1986-3-2 6052 Riverside Chuckwalla Bench, S side of Chuckwalla Mtns., on Bradshaw Rd., 2 mi. E of gasline road 642 Comment
  POM159839  Caulanthus cooperi E. C. Jaeger 1928-3-26 s.n. Riverside Eagle Mts, Colorado Desert. Comment
  SBBG87902  Caulanthus heterophyllus L. F. LaPre 1986-4-17 Riverside Bull Cyn, Gavilan Hills (cf. var. pseudosimulans Buck, nom. illegit.) Comment
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May 31 2013
  UCR241178  Ceanothus cuneatus Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 48 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Hathaway Canyon above woodland stand H-01, toward Burro Flat 951 Comment
  UCR60863  Ceanothus cuneatus Steve Boyd, C. Boyd, K. A. Boyd 1989-4-15 3250 Riverside Peninsular Range, Cahuilla Valley south of Anza, along Hwy 371 at the entrance to Lake Riverside development Comment
  POM48336  Ceanothus greggii var. perplexans E. C. Jaeger 1925-3-1 s.n. Riverside Snow Canyon, San Jacinto Mts. 457 Comment
  UC1070691  Ceanothus greggii var. perplexans A. E. Wieslander 1929-4-3 56 Riverside en route to Banning San Jacinto quad. 762 Comment
  UC64025  Ceanothus greggii var. perplexans H. M. Hall June 1901 2156 Riverside eastern base, along the borders of the Colorado Desert San Jacinto Mts. Comment
  UC870570  Ceanothus greggii var. vestitus P. A. Munz, I. M. Johnston 1922-5-19 5447 Riverside Kenworthy, San Jacinto Mountains 1432 Comment
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Mar 25 2011
  UC1005024  Ceanothus integerrimus W. Pequegnat 1940-7-1 Riverside Santiago Peak Santa Ana Mts. 1734 Comment
  RSA262092  Ceanothus leucodermis E. W. Lathrop 1968-5-22 6930 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak. Cleveland National Forest 1220 Comment
  UCSB7071  Ceanothus leucodermis Lloyd, Robert 1960-3-23 Riverside 2 miles up Snow Canyon Road from State Rd 111 609 Comment
  RSA263748  Ceanothus oliganthus E. W. Lathrop 1968-5-22 6905 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak. Cleveland National Forest 1220 Comment
  RSA606737  Ceanothus ophiochilus Jon E. Keeley 1996-5-13 27418 Riverside In on N side of Agua Tibia Range, 2-3 km S of Agua Tibia Wilderness boundary gate on trail extending ca. 100 m S of enclosed reservoir on ridge SE of Woodchuck Resort at end of Woodchuck Rd., S of Hwy 79. 1000 Comment
  SD136767  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7917 Riverside Agua Tibia Wilderness Area, Cleveland National Forest. Palomar Range south of Vail Lake at north base of Agua Tibia Mountain. Along trail extending south from end of Woodchuck Road. 792 Comment
  SEINET3859650  Ceanothus ophiochilus Unknown 1989-1 Riverside Comment
  RSA399799  Ceanothus palmeri Mark Morris 1929-3-10 14562 Riverside Chaprral of foothill regional. Comment
  CAS-BOT-BC51917  Ceanothus perplexans S. B. Parish 1908-6-1 6966 Riverside Eden Hot Springs Comment
  CAS-BOT-BC51926  Ceanothus perplexans Edmund C. Jaeger 1922-6-12 s.n. Riverside East slope of San Jacinto Mts. on McMullen Trail 1219 Comment
  CAS-BOT-BC51932  Ceanothus perplexans L. A. Greata 1908-6-1 s.n. Riverside Eden Hot Springs Comment
  CAS-BOT-BC83767  Ceanothus perplexans D. O. Burge 2007-3-21 802 b Riverside San Jacinto Mountains, along Hwy 243 1280 Comment
  UCR178566  Ceanothus perplexans R. G. Swinney 1967-3-5 0061 Riverside San Jacinto Mtns/Colorado Desert, Snow Creek 381 Comment
  RSA678975  Ceanothus tomentosus Scott D. White, Michael Honer 2003-6-3 9452 Riverside Santa Ana Mountains: Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. 335 Comment
  RSA552723  Ceanothus tomentosus subsp. olivaceus Steve Boyd, Tim S. Ross, Orlando Mistretta 1992-3-31 6765 Riverside San Mateo Canyon Wilderness Area. Morgan Trail from Round Potrero W to junction with Tenaja Trail in N-fork Bear Creek. 670 Comment
  CAS-BOT-BC63255  Ceanothus tomentosus var. olivaceus Wesley O. Griesel 1959-3-24 13 Riverside highway 79, 7 mi. s. of Hemet. 609 Comment
  JEPS30698 Image available Centaurea X pouzinii F. Willmarth 1961-10-18 Riverside near Corona (old Fuller Rancho) Comment
  RSA654620  Centaurea melitensis Starr Streight 1982-4-17 51 Riverside Hillside north of Cajalco road, 2 miles east of I-15. Comment
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Feb 24 2013
  SEINET3094376 Image available Centaurium calycosum L. A. McGill, H. S. Gentry 1979-5-25 2555 Riverside Murrieta; Howard Scott Gentry Experimental Research Ranch. Comment
  UC456205  Centaurium venustum I. J. Condit 1910-6-24 Riverside road to Strawberry Valley San Jacinto Mts. 1219 Comment
  JEPS106965  Centromadia pungens subsp. laevis Jasmine Watts 2005-7-19 7 Riverside Hemet, S of CA-74 and W of Warren Road Comment
  SD134522  Centromadia pungens subsp. laevis Craig Reiser 1991-4-30 Riverside North of the San Jacinto River, southeast of Lake Perris and the expressway Comment
  UCR169318B  Cerastium glomeratum T. B. Salvato, John F. Green 2004-5-27 617 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
  CLARK-A1528-4051  Cercocarpus betuloides K. R. Montgomery 1969-9-6 Riverside Reed Valley 1219 Comment
  LA47733  Cercocarpus betuloides Elizabeth McClintock; 1936-4-11 sn Riverside Ribbonwood, Pines to Palms Highway Comment
  SD73403  Cercocarpus betuloides Nancy Ryan Zabriskie, Walter Zabriskie 1969-7-5 216 Riverside Near fire road beyond south end of Marion Ridge Rd., Pine Cove, Idyllwild. 1829 Comment
  CAS-BOT-BC143891  Cercocarpus betuloides var. betuloides Steve Boyd; Orlando Mistretta 1992-4-22 7005 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Indian Potrero Trail south from Verdugo Potrero to Indian Potrero on ridge between Talega Canyon and Nickel Canyon 701 Comment
  SD137639  Cercocarpus minutiflorus Darin L. Banks, Steve Boyd 1995-3-16 109 Riverside Cleveland National Forst, Agua Tibia Wilderness Area. E of the Dripping Springs Alcove, N slope of Wildhorse Peak, on the Wildhorse Trail. 625 Comment
  SEINET7073436  Chaenactis artemisiifolia A. G. Vestal 1963-4-25 s.n. Riverside About 6.8 miles south of Sage on Route 3. Coordinate datum: NAD27. Comment
  CAS-BOT-BC276401  Chaenactis carphoclinia Ynez Whilton Winblad 1937-3-17 s.n. Riverside Box Canyon Comment
  SEINET9118568  Chaenactis carphoclinia D. Myrick 1966-1 1349 Riverside Desert Hot Springs, desert slope adjoining Linda Vista Lodge. Comment
  POM351669  Chaenactis carphoclinia var. carphoclinia Geo Cantwell, B. C. Templeton 1935-4-8 s.n. Riverside McCoy Springs, McCoy Mnts. [NW of Blythe] Comment
  JEPS23578  Chaenactis fremontii P. H. Raven 1958-3-16 11861 A Riverside Smoketree Wash; Joshua Tree National Monument Comment
  RSA80990  Chaenactis fremontii G. R. Campbell 1952-4-5 18376 Riverside Colorado Desert, road leading from Highway 60 to 29 Palms [Hwy 62], at junction to Desert Hot Springs 762 Comment
  UC1119695  Chaenactis fremontii H. S. Yates 1936-4-7 5426 Riverside near Whitewater; San Jacinto 304 Comment
  UC894461  Chaenactis fremontii I. W. Clokey and B. C. Templeton 1930-4-9 4699 Riverside n of Palm Springs; Colorado Desert 170 Comment
  UCR102918  Chaenactis fremontii George K. Helmkamp 1998-2-5 2636 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCSB6421  Chaenactis fremontii Foley, Marie 1953-4-23 Riverside White Water Canyon, Colorado Desert Comment
  SEINET10798238  Chaenactis fremontii Billy Joe Cox 1975-4-23 Cox 4163 Riverside Palo Verde, 1-3 km W, (ca. 32 m S of Blythe). 70 Comment
  RSA700020  Chaenactis glabriuscula Scott D. White, Michael Honer 2003-4-25 9105 Riverside San Bernardino Mountains: Whitewater Canyon, about midway between Bonnie Bell and Whitewater Trout Farm. West side of road, on alluvial fan adjacent steep east-facing mountain slope. 610 Comment
  SEINET7073434  Chaenactis glabriuscula A. G. Vestal 1963-4-25 s.n. Riverside About 6.8 miles south of Sage on Route 3. Coordinate datum: NAD27. Comment
  UCR93015  Chaenactis glabriuscula G. P. Schultz 1994-4-7 68 Riverside Box Springs Mtns, Big Springs Canyon and N on the crest to Two Trees Canyon (S side) Comment
  UCR94268  Chaenactis glabriuscula Scott D. White 1996-4-14 3898 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
  POM122831  Chaenactis glabriuscula var. glabriuscula Marcus E. Jones 1926-5-29 s.n. Riverside South of Temecula. Comment
  RSA27591  Chaenactis glabriuscula var. glabriuscula C. L. Hitchcock 1940-4-12 6038 Riverside 8 mi. northwest of Elsinore 457 Comment
  RSA523317  Chaenactis glabriuscula var. glabriuscula G. H. True 1935-3-15 112 Riverside Box Springs 34 Comment
  SBBG104646  Chaenactis glabriuscula var. glabriuscula M. A. Patten 1992-5-14 92 -6 Riverside Cherry Valley, just N of Cherry Park Dr, between Mtn View Ave and Beaumont Ave Comment
  JEPS34181  Chaenactis glabriuscula var. lanosa Marjorie D. Clary 1932-7-3 1212 Riverside near Kenworthy; Hemet Valley 1371 Comment
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Mar 25 2011
  UC63162  Chaenactis parishii H. M. Hall 1901-5-25 1901 Riverside Coyote Canyon Santa Rosa Mt., Coyote Canyon 1524 Comment
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Jan 2 2011
  HSC101261  Chaenactis stevioides Jim Andre 2012-3-19 21353 Riverside Chuckwalla Valley; along Hwy 177, 8.6 mi. NE of Jct with I-10. 152 Comment
  RSA796458  Chaenactis stevioides Duncan S. Bell 2009-4-18 218 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
  POM351834  Chaenactis stevioides var. stevioides M. B. Dunkle 1937-3-25 4938 Riverside Colorado Desert. Comment
  RSA19431  Chaenactis stevioides var. stevioides I. W. Clokey 1935-4-17 6942 Riverside Cottonwood Springs. Comment
  SEINET3194781 Image available Chamaesyce abramsiana G. Rink 2011-9-25 11070 Riverside South of I-10 at the Ford Dry Lake Exit, in a swale that sometimes holds water. 110 Comment
  RSA525447  Chamaesyce albomarginata Steve Boyd, Dave Bramlet 1990-4-29 4492 Riverside Lake Skinner County Park, S flank of Bachelor Mountain. 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
  POM195636  Chamaesyce micromera L. C. Wheeler 1931-11-26 369 Riverside Salton Bench Mark, Colorado Desert. -15 Comment
  RSA736554  Chamaesyce polycarpa Scott D. White, Angelia Carey 2004-7-2 10579 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. 549 Comment
  RSA779949  Chamaesyce polycarpa Duncan S. Bell, Jennifer Pilapil 2011-5-19 2479 A Riverside A side canyon off of Mission Creek canyon approximately 4.5 air miles up canyon from the junction of Highway 62 and Mission Creek Road. 946 Comment
  UC194833  Chamaesyce polycarpa S. B. Parish 1916-5-13 10830 Riverside Cottonwood Springs Colorado Desert 792 Comment
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Oct 9 2010
  POM86120  Chamaesyce polycarpa var. hirtella Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring. 61 Comment
  RSA592456  Chamaesyce setiloba L. C. Wheeler 1966-10-15 8983 Riverside San Jacinto Mountains. By Black Hill, by Pines to Palms Highway. 976 Comment
  RSA741109  Chamomilla suaveolens Scott D. White, Justin M. Wood 2008-6-17 12159 Riverside San Jacinto Mountains: South of Hwy 79 near Keen Camp Summit. 1402 Comment
  UC708735  Cheilanthes covillei H. K. Wagnon 1944-3-8 310 Riverside 1/4 mi s Trading Post (along w side of stream); Palm Canyon Comment
  RSA495802  Cheilanthes newberryi Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-11 2911 Riverside Vail Lake area, mouth of Temecula Creek Cyn, 1.5 mi west of Vail Lake Dam. 396 Comment
  RSA685787  Cheilanthes newberryi May N. Ackley 1922-03 175 Riverside Murrieta Hot Springs 399 Comment
  UCR48426  Cheilanthes newberryi Steve Boyd 1985-12-25 1198 Riverside Peninsular Range, Gavilan Hills; W side of Steele Valley in SCE Transmission Line Corridor 762 Comment
  CAS-BOT-BC68100  Cheilanthes parryi Ira L. Wiggins 1938-3-25 8924 Riverside 3-5 miles south of Palm Springs, on shaded side of Eagle Canyon Comment
  UC399595  Cheilanthes parryi F. M. Reed 1917-5-19 3873 Riverside near Palm Grove in Palm Canyon; Colorado Desert Comment
  RSA720652  Chenopodium album John Green 2005-5-4 s.n. Riverside SE corner Markham St. and Day St., Mead Valley area, 2-3 mi SW of March Air Reserve Base. 534 Comment
  SD70909  Chenopodium album Helen V. Witham 1969-7-2 180 Riverside De Luz Creek crossing, 4 mi north of De Luz. Comment
  UC1929842  Chenopodium album Scott D. White, Angelia Carey 2004-7-2 10555 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation. Poppet Creek Canyon. Comment
  UCR113904  Chenopodium berlandieri Mitch Provance, A. C. Sanders 2000-7-4 2083 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  UCR18790  Chenopodium botrys John C. Roos 1952-6-10 5756 Riverside Santa Ana River in Riverside 259 Comment
  POM248398  Chenopodium pratericola Philip Crow 1939-7-20 s.n. Riverside Blythe. Comment
  RSA455307  Chilopsis linearis L. C. Wheeler 1933-12-1 2281 Riverside San Gorgonia Wash at S. P. RR, San Gorgonio Pass. 640 Comment
  SD229112  Chilopsis linearis Dick Schwenkmeyer 2012-11-6 859 Riverside Palm Canyon, Ague Caliente Indian Reservation, 2.6 mi. south of the intersection of South Palm Canyon Drive and East Palm Canyon Drive, Palm Springs. 178 Comment
  UCR133023  Chilopsis linearis Bern Schwenn 1998-5-4 s.n. Riverside Sonoran (Colorado) Desert, Eagle Mountains, nameless canyon below Carey's Castle, NW of Red Butte Wash, c. 3 miles east of Chiriaco Summit and 1 mile or so north of I-10 640 Comment
  RSA455310  Chilopsis linearis subsp. arcuata George R. Johnstone, G. R. Johnstone 1930-4-14 14659 Riverside Shavers Well Comment
  RSA82479  Chilopsis linearis subsp. arcuata F. W. Peirson 1921-4-13 1173 Riverside Deep Canyon; north base of Santa Rosa Mountains, Riverside. 335 Comment
  RSA736305  Chloris truncata Scott D. White, Justin M. Wood 2008-5-13 11952 Riverside I-215 freeway right of way. South of Scott Rd. Comment
  CAS-BOT-BC184866  Chloris virgata Carl B. Wolf 1932-4-28 3071 Riverside Chuckwalla Valley. 20 miles west of Blythe on the Mecca Road. 121 Comment
  POM122009  Chorizanthe brevicornu var. brevicornu Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  RSA715070  Chorizanthe coriacea A. C. Sanders, D. Malueg 2003-5-8 26576 Riverside Perris-Aguanga Basin region: Los Alamos Road at Warm Springs Creek crossing west of Hwy 79, northeast of the Hogbacks, north of Los Alamos Rd. and east of the creek. 396 Comment
  UCR87931  Chorizanthe coriacea A. C. Sanders, N. Ferguson 1994-6-2 14634 Riverside San Jacinto Mtns, Bautista Canyon, c. 1 mile above the forest service boundary 850 Comment
  UC1287109  Chorizanthe corrugata C. L. Hitchcock 1966-3-20 24304 Riverside along road to Blythe 20 mi n Ogilby; n of Ogilby Comment
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Mar 2 2013
  RSA688846  Chorizanthe fimbriata Scott D. White, Michael Honer 2003-6-17 9552 Riverside S Perris Basin: Murrieta. Interstate 215 / Clinton Keith interchange. 457 Comment
  UCR97696  Chorizanthe fimbriata A. C. Sanders, G. Helmkamp 1997-3-15 19929 Riverside Lake Skinner area: hill (1864) east of Skinner Lake at NW end of Tucalota Hills 537 Comment
  SD239847  Chorizanthe leptotheca T. B. Salvato, Richard Camacho 2011-6-12 5495 Riverside Peninsular Range: Temescal Canyon, N/S trending wash that extends from Temescal Canyon Road near the west end of Lee (Corona) Lake, south under the Hwy 15 overpass about 0.25 miles. 359 Comment
  UC455205  Chorizanthe leptotheca I. J. Condit 1910-6-24 Riverside road to Strawberry Valley (San Jacinto Mountains); San Jacinto Mountains 609 Comment
  SEINET4182893  Chorizanthe parryi K. Brandegee 1905-5-12 s.n. Riverside Near Riverside Comment
  RSA735987  Chorizanthe parryi var. parryi Scott D. White, Justin M. Wood 2008-5-27 12037 Riverside Perris Basin: I-215 freeway, between Clinton Keith and Alamos. 396 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
  UCR260598  Chorizanthe parryi var. parryi A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41472 Riverside San Gorgonio Pass, north of San Gorgonio River wash, c. 2.8 miles east (92 deg. ) of Cabazon, c. 1.1 mi. NNW (340 deg. ) of One Horse Spring, south of I-10 and east of water bottling plant, edge of wind farm 456 Comment
  UCR174157  Chorizanthe polygonoides var. longispina A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32605 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
  UCR217536  Chorizanthe polygonoides var. longispina Diane Menuz 2008-4-15 421 Riverside Peninsular Range: Santa Ana Mts, West side of San Mateo Canyon, near Oak Flats 746 Comment
  UCR218071  Chorizanthe polygonoides var. longispina Steve Boyd 2010-5-26 12281 Riverside Santa Ana Mountains, Elsinore Peak, southeast of peak along trail running from east flank of peak to easternmost clay knoll along ''old Main Divide Road' 1018 Comment
  UCR91227  Chorizanthe polygonoides var. longispina D. E. Bramlet 1995-4-25 2395 Riverside Shipley Reserve/SE corner of Lake Skinner Co. Park, within and beside the Equestrian Trail, south of the Tucalota Hills and approximately 702 m SE of the park entrance road and 610 m north of East Benton Road, just SW of knoll 1800 ft 524 Comment
  CAS-BOT-BC246241  Chorizanthe rigida Peter H. Raven 1958-1-23 11430 Riverside alluvial fan of Fargo Canyon Comment
  UCR177642  Chorizanthe staticoides S. J. Myers, John Green 2003-4-23 s.n. Riverside San Jacinto Mtns., powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  UCR167057  Chorizanthe xanti var. leucotheca Scott D. White, Jennifer H. Jones 2005-5-24 11098 Riverside Banning Pass area, Cabazon: San Gorgonio River wash and adjacent alluvial flats and benches to W 610 Comment
  SBBG61607  Chrysolepis sempervirens M. Lewis 1947-8-26 14 Riverside E slope San Jacinto Mtns 274 Comment
  SD127315  Chrysolepis sempervirens Reid Moran 1973-7-28 21107 Riverside Summit of Toro Peak 2500 Comment
  UCR25017  Chrysolepis sempervirens A. C. Sanders 1980-7-23 1768 Riverside San Jacinto Mtns, Black Mountain, rocky ridge SW of Farview Point. 2348 Comment
  CLARK-A1528-1770  Chrysopsis villosa John C. Roos 1937-8-19 2499 Riverside San Jacinto Mountains Comment
  CLARK-A1528-1728  Chrysothamnus paniculatus John C. Roos 1943-10-17 2736 Riverside Little San Bernardino Mountains Comment
  POM352018  Chrysothamnus paniculatus L. C. Wheeler 1933-12-1 2288 Riverside 2 miles E Cabazon, San Gorgonio Pass 640 Comment
  RSA117699  Chrysothamnus teretifolius S. Carlquist 1958-3-30 429 Riverside Along Morongo Valley to Lucerne Valley Road, on San Bernardino - Riverside County line Comment
  JOTR37496  Chylismia brevipes subsp. brevipes Hodges, Stephen R., L. Ashfield 2016-1-20 625 Riverside Joshua Tree National Park. Eagle Mountains, Black Eagle Mine road, northern edge of mountains near eastern park boundary (Stop 1). Comment
  UCR269838  Chylismia claviformis A. C. Sanders, Jim Malusa 2016-3-18 42380 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, along gasline road 21.5 km due north of Slab City/Camp Dunlap 538 Comment
  UCR279415  Chylismia claviformis A. C. Sanders, Jim Malusa 2017-3-25 42994 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
  UCSB44671  Chylismia claviformis Hibbard, Doug 1977-5-16 Riverside Off NW side of Hwy 74; 11.8 miles from its intersection with Hwy 111 1036 Comment
  CAS-BOT-BC160631  Chylismia claviformis subsp. aurantiaca F. H. Billings 1926-1-25 10 Riverside Palm Springs Comment
  UCSB4509  Chylismia claviformis subsp. aurantiaca Krogen, Roger 1957-1 Riverside 4 mi. S of Jct. of HWY 195 and HWY 60-70; at N edge of Orocopia mts Comment
  RSA0059654  Cirsium occidentale Steve Boyd, Tim Ross 1991-6-14 6403 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
  SEINET232559  Cirsium occidentale var. californicum A. C. Sanders, B Pitzer 1987-4-21 7048 Riverside Box Springs Mountains near southernmost radio towers (Riverside East Quad) 792 Comment
  RSA740254  Cirsium vulgare Scott D. White, Justin M. Wood 2008-7-9 12410 Riverside San Jacinto Mountains: Johnson Meadow 1415 Comment
  RSA0017423  Cistanthe ambigua Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  RSA699173  Cistanthe monandra J. Russell Bruff 1928-4-2 110 Riverside Canyon wash 1 mile west of Morengo. Comment
  RSA561136  Clarkia bottae Steve Boyd, T. S. Ross, D. E. Bramlet 1993-5-12 7339 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Los Alamos canyon downstream to confluence with Tenaja Canyon. 366 Comment
  POM13997  Clarkia dudleyana E. C. Jaeger 1921-6-13 938 Riverside San Jacinto Mountains, McMullen Trail [Banning to McMullen Flat] 915 Comment
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Nov 5 2011
  POM305378  Clarkia epilobioides Henry J. Ramsey, Henry J. Ramsey 1938-5-4 640 Riverside Elsinore. Comment
  UC58857  Clarkia epilobioides H. M. Hall 1896-4-6 273 Riverside near Riverside; Box Springs Mt. Comment
  UCR43175  Clarkia purpurea subsp. quadrivulnera B. G. Pitzer, Karen Kirtland 1986-5-7 0208 Riverside Butterfield Stage Ranch development, in the hills on the north side Pauba Valley, in the Rancho California area, 1 mi south of Buck Mesa on the E side of Butterfield State Road 457 Comment
  CAS-BOT-BC229143  Claytonia parviflora A. C. Sanders; Matthew Malle 2010-4-23 37992 Riverside Peninsular Range: Menifee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  RSA522742  Claytonia parviflora subsp. parviflora Steve Boyd, Timothy S. Ross, Laurel Arnseth 1990-3-29 3849 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
  JOTR31041  Claytonia parviflora subsp. utahensis La Doux, Tasha, Maria Harding, Mark Wheeler 2010-5-20 2025 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lower Covington Flats; STOP 1: drainage heading toward Smithwater Canyon, rocky canyon with narrow sandy bottom Comment
  RSA586804  Claytonia parviflora subsp. viridis D. L. Banks, Steve Boyd 1995-5-3 0241 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
  UCR20553  Claytonia parviflora subsp. viridis W. W. Mayhew 1977-6-12 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1921 Comment
  RSA650085  Claytonia perfoliata Marion P. Harthill 1976-5-6 s.n. Riverside Cleveland National Forest. 609 Comment
  SEINET10536024  Clematis lasiantha James S. Miller 1992-5-8 Miller 7461 Riverside 1 mi N of California route 74 on Main Divide Road; near NE border of Cleveland National Forest. 900 Comment
  UC1608232  Clematis lasiantha Steve Boyd, Tim Ross, and Orlando Mistretta 1992-3-31 6758 Riverside Tenaja Trail from junction with Morgan Trail s. to Pigeon Spring area (San Mateo Canyon Wilderness Area); Santa Ana Mts., San Mateo Canyon Wilderness Area 670 Comment
  UCSB1947  Clematis lasiantha DeWitt, Jack 1959-5-18 Riverside 5.1 miles 1. of Banning on Rd. to San Jacinto Mtns. and Idyllwild 762 Comment
  RSA180259  Clematis pauciflora E. W. Lathrop 1965-3-30 5593 Riverside Tenaja Guard Station, 16 mi. W of Murrieta. Comment
  RSA519251  Clematis pauciflora Ed LaRue 1989-4-25 s.n. Riverside 2 mi (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouths of Rice and McVicker Canyons. All of sec. 33, W/2 sec. 34, NW/4 sec. 3 [T6S] and a small portion of eastern sec 35. 488 Comment
  UCR138892  Clematis pauciflora D. L. Banks 1997-4-5 1662 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
  UCR50391  Clematis pauciflora L. F. LaPre, Jack Easton 1988-1-12 s.n. Riverside Santa Rosa Plateau, Mesa de la Punta, Santa Rosa Springs Ranch 610 Comment
  POM254915  Cleome isomeris P. A. Munz 1940-3-24 15713 Riverside 2 miles north of Cottonwood Springs, Eagle Mountains. 915 Comment
  RSA440816  Cleome isomeris N. C. Cooper 1944-4-23 1117 Riverside Cabazon 457 Comment
  CSUSB737  Coldenia plicata I. S. Singh 1972-4-21 S. N. Riverside Route 2, Thermal roadside, near Willits and Newcomb Citrus Nursery. Comment
  RSA0117430  Collinsia concolor Steve D. Boyd 1995-4-24 8478 Riverside Palomar Range, Agua Tibia Wilderness Area, Arroyo Seco drainage on northern flank of Agua Tibia Mountain at the north base of Wildhorse Peak, along the Wildhorse Trail southeast of its junction with the Dripping Springs Trail. 610 Comment
  RSA0030787  Collinsia concolor N. C. Cooper 1944-5-20 1290 Riverside Palms to Pines Highway [Hwy. 74], San Jacinto Mountains. 1372 Comment
  RSA0117413  Collinsia concolor N. C. Cooper 1944-6-16 1429 Riverside Pine Cove 1524 Comment
  UCR168612  Collomia grandiflora T. B. Salvato, John F. Green 2004-5-27 578 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
  JEPS13822  Colubrina californica Marjorie D. Clary 1935-11-17 2568 Riverside three mi e Mecca-Blythe Road; SE Colorado Desert, southeast slope of Eagle Mountains Comment
  JOTR36484  Colubrina californica La Doux, Tasha, M. Harding, B. Truesdell, D. Shade, E. Babich 2013-3-15 3424 Riverside Joshua Tree National Park. Southeast Coxcomb mountains; narrow north fork of large canyon w/ cobbley wash and steep rocky walls (Stop 2) 338 Comment
  SBBG87664  Condea emoryi S. Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. Ross 1988-3-10 2102 Riverside N end of Palen Mtns, 2 mi W of Palen Pass 300 Comment
  RSA588187  Conyza bonariensis D. L. Banks, Victor Steinmann 1995-7-10 0752 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along Wildhorse Trail, S of lower Arroyo Seco, NW of Wildhorse Peak. In major drainage that flows off NW flank of Wildhorse Peak. 610 Comment
  POM318626  Conyza canadensis Patricia Wilder 1970-10-15 4793 Riverside Prado Dam at base of dam in Prado Flood Control Basin. East of Chino Hills. 152 Comment
  RSA0011006  Cordylanthus rigidus subsp. setiger Duncan S. Bell, Joy D. England 2010-6-7 1274 Riverside San Bernardino National Forest: Rouse Ridge, approximately 3 air miles southeast of junction of Highway 74 and forest service road 5S15. 1057 Comment
  UCR24939  Cornus nuttallii A. C. Sanders 1980-7-22 1709 Riverside Peninsular Range; San Jacinto Mtns, [Forest Service] Rd. 4S02, c. 2.5 (airline) mi north of Pine Cove and c. 0.25 mi south of Dark Canyon campground 1768 Comment
  CSUSB946  Coronopus didymus Oscar F. Clarke, James K. Ryan 1969-5-28 Riverside City of Riverside. Yard of 1021 Spruce Street, growing as weed. 335 Comment
  CDA20526  Cotula australis D. Domenigoni 2005-5-2 PDR 1261702 Riverside Peninsular Ranges; Perris. 0 Comment
  CAS-BOT-BC291363  Cotula coronopifolia Steve Boyd 1986-4-19 1720 Riverside Warm Springs Valley, along Alberhill Creek drainage E of Nichols Road Comment
  RSA613463  Crassula connata D. L. Banks, Victor Steinmann 1997-3-13 1429 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
  UCR274538  Cressa truxillensis Mitch Provance, Ken Halama 2003-6-15 17050 Riverside Temescal Mountains, Mead Valley, just SSW of the corner of Cajalco Rd. and Wood St. Comment
  JOTR29599  Crossosoma bigelovii Andre, Jim 2006-4-26 6756 Riverside Joshua Tree National Park. Long Canyon, approximately 2.3 mi. S of NE corner (boundary) of park 1055 Comment
  SFV6319  Crossosoma bigelovii T. Gordon, M. H. Grayum, L. R. Ballou, S. Ballou, K. A. Wilson 1974-3-2 28 Riverside San Bernardino Mountains Whitewater Canyon Road, 3 miles north of Highway 60. 630 Comment
  UCR88435  Crossosoma bigelovii A. C. Sanders, K. C. Rose 1995-4-5 16349 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  RSA314443  Croton californicus R. F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55430 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  RSA776768  Croton californicus Amber Swanson 2011-4-8 380 Riverside Granite Mtns area E of Hwy 177 near jct 62. 423 Comment
  SEINET10493393  Croton californicus David B. Dunn 1948-6-18 Dunn 3827 Riverside Desert floor on the way out along dirt road from Coldwater Canyon. Comment
  CLARK-A1528-431  Croton californicus subsp. californicus C. M. Flanagan 1973-6-13 OO 702 Riverside Morongo Indian Reservation 1158 Comment
  UCR99572  Croton setiger Julie A. Greene, S. D. White 1993-7-5 1402 Riverside San Jacinto Valley, San Jacinto Wildlife Area, lower, flat area, west of dirt road 441 Comment
  RSA675836  Crypsis schoenoides Scott D. White 2001-7-9 8716 Riverside MENIFEE: Ca. 1 mile southwest of Bell Mtn. and 1/2 mile east of I-215 Freeway. 445 Comment
  UCR202229  Crypsis schoenoides Karin Cleary-Rose 1998-9-7 s.n Riverside Perris-Aguanga Basin Region; San Jacinto River Valley, west edge of Hemet, east of Warren Rd., south of Esplanade and north of the Tres Cerritos Hills 460 Comment
  UCR89778  Crypsis vaginiflora Karen Kirtland 1993-6-19 s.n. Riverside San Jacinto River Valley, along Hwy I-215 between 4th St. (Perris) and c. 0.25 mile south of the San Jacinto River crossing 430 Comment
  UCR243508  Cryptantha Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21088 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, up side canyon approx. 400 m. west of main canyon drainage 1172 Comment
  UC1007234  Cryptantha angustifolia P. A. Munz 1940-3-24 15708 Riverside 2 mi n Cottonwood Springs; Eagle Mts. 914 Comment
  UCR148856  Cryptantha angustifolia 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
  POM184300  Cryptantha barbigera P. A. Munz 1932-3-14 11991 Riverside Palm Springs. 91 Comment
  UC280427  Cryptantha barbigera E. E. Schellenger May 1920 Riverside e of Coachella; Colorado Desert Comment
  UC494837  Cryptantha barbigera Philip A. Munz 1932-3-14 11991 Riverside Deep Canyon Coachella Valley 91 Comment
  UC573091  Cryptantha barbigera Herbert L. Mason 1928-3-10 4228 Riverside Hidden Springs Canyon Coachella Mts. Comment
  CAS-BOT-BC218863  Cryptantha costata Carl B. Wolf 1932-4-29 s.n. Riverside EASTERN COLORADO DESERT. 3 MI. SO. OF RICE ON BLYTHE ROAD. 213 Comment
  RSA0078808  Cryptantha cycloptera Duncan S. Bell 2009-3-7 21 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
  RSA0123678  Cryptantha decipiens Duncan S. Bell, LeRoy Gross 2016-3-9 8863 Riverside Orocopia Mountains; northwestern section of the range, approximately 6.5 air miles southwest of Chiriaco Summit, collecting in the area know as Hotel California. 775 Comment
  UCR279375  Cryptantha decipiens A. C. Sanders, Jim Malusa 2017-3-24 42953 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, large wash south of Bradshaw Trail, c. 11 km SE of Gasline Rd. 729 Comment
  POM368271  Cryptantha intermedia F. R. Fosberg 1932-5-9 10641 Riverside Sage Comment
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Dec 10 2011
  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
  POM369487  Cryptantha intermedia M. V. Hood 1945-3-25 s.n. Riverside Aguanga. Comment
  RSA717051  Cryptantha intermedia A. C. Sanders, T. B. Salvato, Mitch Provance 2003-4-4 25845 Riverside San Bernardino/Santa Ana River Valley Region: Jurupa Mtns., hill SW of the Jensen Quarry, NW of Sunnyslope 366 Comment
  RSA741608  Cryptantha intermedia Scott D. White, Justin M. Wood 2008-6-16 12126 Riverside Fobes Canyon, +/- 1 mile up Fobes Ranch Road from Fobes Spring. 1540 Comment
  RSA762387  Cryptantha intermedia Mitch Provance 2003-4-26 9896 Riverside northern extreme of the La Sierra Hills, on the N-facing slopes and ridges just south of Crestlawn Memorial Cemetery 274 Comment
  UCR241818  Cryptantha intermedia A. C. Sanders, Timothy W. Chumley 2013-4-2 40750 Riverside Peninsular Range, Temescal Canyon between Horsethief Canyon Rd. and Hostettler Rd., above I-15 Fwy, SE of Corona (Lee) Lake 396 Comment
  UCR47322  Cryptantha intermedia D. C. Hawks 1987-5-16 s.n. Riverside Terwilliger Valley, S of Anza, Terwilliger Road, 0.9 mi. south of intersection with Wellman Road 1189 Comment
  SBBG81505  Cryptantha maritima S. A. Junak 1983-3-23 1616 Riverside Jefferson Rd, across from entrance to Cahuilla Lake County Park, S of indio Comment
  UCR233178A  Cryptantha maritima Jim Andre, Glenn L. Clifton 2011-2-22 17430 Riverside Mecca Hills, along Box Canyon Road, 8.5 mi northeast of town of Mecca 171 Comment
  CLARK-A1656-730  Cryptantha micrantha Theo Glenn 1981-4-24 Riverside San Jacinto Mountains Comment
  HSC3581  Cryptantha micrantha R. A. Eagle 1963-4-8 8 Riverside San Jacinto Mtns., 3 mi. out of Banning Comment
  POM337992  Cryptantha micrantha F. R. Fosberg 1930-4-30 2257 Riverside Morongo Valley. Comment
  RSA499654  Cryptantha micrantha var. lepida N. C. Cooper 1944-5-20 1249 Riverside Palms to Pines Hwy. San Jacinto Mtns. 1219 Comment
  RSA771752  Cryptantha micrantha var. micrantha Orlando Mistretta, Duncan Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4629 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  RSA779621  Cryptantha micrantha var. micrantha Duncan S. Bell 2010-4-1 657 Riverside Arica Mountains: east side of the mountain range, west side of Rice Valley, near the lowest eastern drainage point for the Arica mountains; approximately 4.3 air miles southeast of the ghost town of Rice. 209 Comment
  UCR158275  Cryptantha micromeres A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-4-14 29498 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
  OBI42560  Cryptantha muricata A. C. Sanders 1986-6-1 6537 Riverside San Jacinto Mts, along the trl toward Spitler Peak from the Hurkey Crk camp to Bonita Vista Rd (T5S, R3E, N1/2, sec 35) 1707 Comment
  RSA0089246  Cryptantha muricata Steve D. Boyd, Valerie Soza 2004-6-22 11544 Riverside Peninsular Ranges: San Jacinto Mountains region: Western flank of the range, vicinity of Alvin Meadows and Chimney Flats, west of Idyllwild along forest service road 5N13 near 5N06. 1463 Comment
  VVC2474  Cryptantha nevadensis var. nevadensis Tim Thomas 2013-3-18 5933 Riverside Sonoran Desert, 10 miles WSW of Blythe NE of Mule Mtns. 116 Comment
  JOTR33727  Cryptantha pterocarya var. pterocarya La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2728 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Sandy pediment/bajada surrounding granitic ourcrops near Stirrup Tank parking lot (Stop 1) Comment
  RSA0079104  Cryptantha pterocarya var. pterocarya Duncan S. Bell 2010-4-2 703 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
  RSA79623  Cryptantha utahensis F. W. Peirson 1919-4-13 1025 Riverside Murray Canyon, Palm Springs region. Comment
  UC857297  Cryptantha utahensis C. L. Hitchcock 1940-3-29 5856 Riverside ca 100 yds e Cottonwood Spring; Cottonwood Canyon Comment
  UC857320  Cryptantha utahensis C. L. Hitchcock 1940-3-29 5867 Riverside ca 100 yds e Cottonwood Spring; Cottonwood Canyon Comment
  UCR25962  Cryptantha utahensis John C. Roos 1948-5-1 3816 Riverside Western Colorado Desert/ San Bernardino Mtns., Whitewater, N slope on a mountainside 549 Comment
  UCR21519  Cucurbita foetidissima Steve Boyd 1980-7-16 s.n. Riverside Perris Basin, Motte Reserve, 2.5 miles NW of Perris, west edge of the reserve c. 1/4 mile north of the Motte's house 520 Comment
  RSA5153  Cucurbita palmata C. B. Wolf 1932-4-27 1474 Riverside Colorado Desert, 14 miles E. of Mecca on Blythe Road 152 Comment
  CAS-BOT-BC224609  Cuscuta californica var. papillosa Lewis S. Rose 1946-12-23 46300 Riverside Cathedral Canyon Wash Comment
  UCR35150  Cuscuta californica var. papillosa L. B. Ziegler 1972-6-10 480 Riverside San Jacinto Valley, [Santa Rosa ] hills on south side of valley (W of Ramona Bowl) Comment
  RSA263689  Cuscuta ceanothi E. W. Lathrop 1966-5-8 6418 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA795921  Cuscuta denticulata Duncan S. Bell 2009-4-19 289 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  UCR17381  Cuscuta pentagona O. F. Clarke 1978-10-23 s.n. Riverside Rubidoux, north side of Limonite Avenue, 0.3 mi. west of intersection with Clay Street Comment
  UCR201868  Cycloloma atriplicifolium Justin M. Wood 2008-9-30 178 Riverside SW Perris Basin, Temecula/Murrieta Creek, downstream of 1st Street bridge 305 Comment
  SD130198  Cylindropuntia californica var. parkeri George E. Lindsay 1960-11-6 Riverside 6 miles southeast of Riverside, in rolling granite hills. (IPB 7/07) Comment
  UCR20826  Cylindropuntia echinocarpa Don Emery 1980-5-15 s.n. Riverside Sonoran (Western Colorado) Desert, Coachella Valley, Devers Hill, near the So. Cal. Edison substation 305 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
  CAS-BOT-BC114418  Cyperus erythrorhizos A. C. Sanders; Dave Bramlet; M. Costea; T. B. Salvato 1999-10-15 23179 Riverside San Jacinto Valley: Mystic (San Jacinto) Lake, 1.4 mi SE of Jackrabbit Trail, 433 Comment
  RSA500204  Cyperus erythrorhizos Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3540 Riverside Vail Lake area, pond and freshwater marsh in Kolb Crk. just south of the lake. Comment
  RSA522108  Cyperus erythrorhizos Steve Boyd, Timothy S. Ross 1989-8-28 3801 Riverside Vail Lake area, Temecula Creek at confluence with lake and adjacent sedimentary hills to the east. 442 Comment
  UCR209673  Cyperus erythrorhizos Fred M. Roberts, Carol A. Roberts 1999-10-23 5253 Riverside San Jacinto Valley, Mystic Lake, northeast shore near Gilman Hot Springs Road, c. 1.8 km southwest of Eden Peak 433 Comment
  SEINET269470  Cyperus esculentus Scott D. White, Steve Ogg 1994-10-17 2469 Riverside Temecula Valley, Murrieta Creek 1000 ft. south of Winchester Road bridge (Banana Avenue on USGS Murrieta quad photorev. 1979). 300 Comment
  RSA500542  Cyperus involucratus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3568 Riverside Vail Lake area, along Arroyo Seco drainage from jtn. with Kolb Creek, S to w/in 1/4 mi Hwy 79. 457 Comment
  UC816892  Dactylis glomerata Crawford and Johnston 1917-6-9 1227 Riverside Santa Ana River near Corona; Santa Ana River Comment
  RSA404179  Dalea mollissima Anstruther Davidson 1922-3-1 3484 Riverside Palm Springs Comment
  RSA796272  Dalea mollissima Jim Andre 2012-4-15 20849 Riverside West end of Hayfield Dry Lake, 0.3 mi. N of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10. 395 Comment
  SEINET2061476 Image available Dalea mollissima A. C. Sanders, et al. 1986-3-2 6067 Riverside Chuckwalla Valley, ca. 1/2 mile W of Graham Pass, on powerline road 1/2 mile S of old Hwy 60. 134 Comment
  UCR137373  Dalea mollissima June Latting 1978-4-30 s.n. Riverside Sonoran (Colorado) Desert, Red Cloud Mine Road near I-10 427 Comment
  UCR139720  Dalea mollissima B. G. Pitzer 1989-4-16 1296 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, just outside impact area, 1 km south of Tabaseca Tank 700 Comment
  UCR167377  Dalea mollissima John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, NNE of Rancho Dos Palmas, between Coachella Canal siphons 28 and 29 24 Comment
  UCR208074  Datisca glomerata T. S. Elias, Steve Boyd, Kit Tan 1986-7-23 10154 Riverside Peninsular Ranges; Santa Ana Mountains, Santa Rosa Plateau: along Cole Creek 610 Comment
  CHSC116490  Datisca glomerata R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49547 Riverside Santa Ana Mountains: along Ortega Highway (74), about 3 miles south-southwest of El Cariso, near junction of Decker and Morrell Canyons. Comment
  RSA273281  Datura wrightii Glenn A. Gorelick 1966-8-13 s.n. Riverside Growing in dry sandy soil along dry creek bed, Rubidoux. Comment
  UCR3432  Daucus pusillus John Minnich 1964-5-3 64-05-03# 3 Riverside Box Springs Mtns, Riverside, Box Springs Mtns, Two Trees Cyn at end of Two Trees Rd. 367 Comment
  CAS-BOT-BC131034  Deinandra paniculata James I. McMurphy 1916-8-13 s.n. Riverside Riverside Comment
  SD234297  Deinandra paniculata Kent Beaman 1998-9-1 Riverside Peninsular Range; Gavilan Plateay: west of Perris off Ellis Rd., Santa Rosa Mine Rd., near Maywood 518 Comment
  RSA149642  Delphinium parishii Harlan Lewis, C. Epling 1941-5-7 s.n. Riverside 3 miles N of Cottonwood Spring, Joshua Tree Nat. Mon. Comment
  CSUSB1746  Dendromecon rigida A. H. Wheeler 1974-7-21 Riverside Rd. Banning- Idyllwild- nearest Banning. 1219 Comment
  LA45861  Dendromecon rigida A. M. Johnson; 1932-8-18 4137 Riverside San Jacinto Mountains, E side along road Comment
  RSA617828  Deschampsia danthonioides R. E. Riefner 1998-4-22 98 -290 Riverside Elsinore Trough between Willard and Murrieta Creek. Lake Elsinore. Comment
  UCR24985  Deschampsia elongata A. C. Sanders 1980-8-23 1762 Riverside San Jacinto Mountains, Black Mountain; c. 100 yards above Black Mtn. Campground along a small stream 2241 Comment
  SEINET3507676 Image available Descurainia pinnata C. F. Shutts 1949-3-19 52 Riverside White Tank Joshua Tree Natl. Mon. Comment
  UC856000  Descurainia pinnata subsp. glabra C. L. Hitchcock 1940-4-1 5911 Riverside Cottonwood Spring wash; Joshus Tree National Monument Comment
  CAS-BOT-BC402298  Dicentra chrysantha Marcus E. Jones 1926-6-20 s.n. Riverside 20 miles north of Idyllwild Comment
  RSA683866  Dicentra chrysantha Scott D. White, Michael Honer 2003-4-4 8954 Riverside Temescal Valley: Dissected bajada bench, below and east of Horsethief Canyon; immediately S of I-15 Freeway. 366 Comment
  RSA696601  Dicentra chrysantha Keith E. Hoffmaster 1934-4-8 143 Riverside Santa Ana Mts. Comment
  UCR734  Dicentra ochroleuca Joyce Davis 1965-5-14 62 Riverside Santa Ana Mtns, c. 7 mi. south of Corona, c. 15 ft. above Skyline Drive 518 Comment
  UCR144102  Dichanthelium acuminatum subsp. fasciculatum Scott D. White, Michael Honer 2003-6-3 9494 Riverside Peninsular Ranges; Santa Ana Mountains region, Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary 579 Comment
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May 3 2007
  UCR133374  Dichelostemma capitatum Mitch Provance, J. S. Ross 1998-3-27 MOR- 983 Riverside San Bernardino Mtns. Region, Morongo Indian Reservation, S entrance to Hathaway Cyn., near the corner of Verdugo Rd. and Hathaway Cyn. Rd. 732 Comment
  RSA524231  Dichelostemma pulchellum var. pulchellum Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4025 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  GMDRC7548  Dicoria canescens J. M. Andre 2015-4-23 32756 Riverside Rice Valley: along Rice-Midland Rd, 3.1 mi. south of Hwy 62, eastern end of Arica Mountains 253 Comment
  POM202625  Dicoria canescens Marcus E. Jones 1933-12-29 s.n. Riverside Palm Springs. Comment
  UCR82893  Dicoria canescens A. C. Sanders, C. L. Sanders, S. D. White 1994-10-9 15805 Riverside San Bernardino Mtns., Whitewater Canyon, 2 mi below trout farm, above Bonnie Bell 564 Comment
  UCR93088  Digitaria sanguinalis A. C. Sanders, S. Ogg 1994-7-28 15179 Riverside Santa Ana River between the Hwy 60 Bridge and the Mission Blvd. Bridge 243 Comment
  CAS-BOT-BC152916  Diplacus brevipes Peter H. Raven; R. Snow 1957-7-26 11087 Riverside Banning-Idyllwild road 0.9 mi. n. of Vista Grande Ranger station, San Jacinto Mts. Comment
  SEINET4095863  Diplacus longiflorus C. Davidson 1975-1 2803 Riverside Roughly two miles south of Banning on road R1 to Idyllwild; roughly 20 feet from road. 822 Comment
  RSA0018427  Diplacus longiflorus var. calycinus Robert F. Thorne, C. W. Tilforth, J. P. Simon 1969-6-24 38133 Riverside San Bernardino National Forest, San Jacinto Mountains: Lake Fulmor. 1677 Comment
  RSA0018436  Diplacus longiflorus var. calycinus Hendle 1940-05 s.n. Riverside Idlewild. [Idyllwild] Comment
  UCR121896  Distichlis spicata Ian G. Gillespie 2001-5-7 79 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
  UCR41800  Ditaxis lanceolata A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6026 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  UCR75052  Ditaxis lanceolata A. C. Sanders, E. J. Lawlor 1992-4-4 12108 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  RSA719244  Ditaxis lanceolata Michael Honer, Lincoln Hulse 2004-4-3 1908 Riverside Rockhouse Canyon, appx. 1/2 mi. N of intersection with Fargo Canyon. Peninsular Ranges, San Ysidro Mountains: W side of Otay Mtn; 1.5 km SSE of Savage Dam (Otay Lake); N of County Prison; near tributary to Otay River, N of O'Neal Canyon. 610 Comment
  JOTR35983  Ditaxis neomexicana Harding, Mitzi, Mark Wheeler 2012-9-4 194 Riverside Joshua Tree National Park. Pinto Basin; north end of sand ramps west of Pinto Mtn; fine sand ramps and dunes (stop 2) 516 Comment
  SBBG104637  Ditaxis neomexicana T. Glenn 1991-5-2 91 -16 Riverside McCoy Mtns, NW of Blythe; T4S, R20E, S32 350 Comment
  UC310226  Dithyrea californica Edmund C. Jaeger 1925-12-22 Riverside 5 mi e Palm Springs; Eagle Canyon Comment
  UC472687  Dithyrea californica M. F. Spencer 1918-3-28 Riverside near Palm Springs; Colorado Desert 100 Comment
  SD127571  Dodecahema leptoceras Steve Boyd 1986-4-19 1692 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Road. Comment
  SD138824  Dodecahema leptoceras Craig Reiser 1993-4-24 Riverside Near Vail Lake, west of entrance to Butterfield Campground north of Highway 79 Comment
  RSA69040  Dodecatheon redolens F. W. Peirson 1924-7-27 4999 Riverside Deer Springs, San Jacinto Mtns. 2668 Comment
  SD204853  Downingia bella R. F. Thorne, E. W. Lathrop, S. Beckstrom-Sternberg, B. Martin 1982-6-5 55200 Riverside Peninsular Ranges; Santa Ana Mountains region: Southwest of Murrieta. Santa Rosa Plateau, Mesa de Colorado. 579 Comment
  POM8518  Draba cuneifolia var. integrifolia Mary F. Spencer 1920-3-24 1477 Riverside Indian Wells 122 Comment
  CLARK-A1528-5230  Draba sonorae John C. Roos 1952-3-19 5402 Riverside Box Springs Mountains 457 Comment
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Oct 23 2014
  HSC1035  Dryopteris arguta W. R. Supernaugh, Jr. 1964-12-24 24 Riverside Joshua Tree Nat'l Monument, 0.25 mi. E of Ryan Campground 1311 Comment
  IRVC146  Dryopteris arguta M. Savage 1965-4-24 s.n. Riverside [E of Mountain Center] Route 74; Keen Camp Summit. Peninsular Ranges, San Jacinto Mountains Comment
  SEINET9037719 Image available Dudleya lanceolata M. A. Baker 2015-1 18321 Riverside San Gorgonio Pass, 4.2km east of the San Gorgonio River, 28km WNW of Palm Springs, broad dissected wash of pale rock, gravel, and sand 640 Comment
  UCR127557  Dudleya lanceolata A. C. Sanders, T. B. Salvato 2003-5-21 26788 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
  UCR252215  Dudleya lanceolata J. Mendoza 2011-5-28 s.n. Riverside Moreno Valley, Boulder Ridge Dr. east of intersection with Lasselle, north of Ironwood Ave. and east of Perris Blvd. on north side of valley 645 Comment
  CAS-BOT-BC109604  Dudleya saxosa subsp. aloides Reid Moran 1941-5-3 834 Riverside Whitewater, near Banning. 300 Comment
  RSA720444  Dudleya saxosa subsp. aloides Naomi Fraga, LeRoy Gross, Bill Hogshead 2006-6-12 1703 Riverside Along FS road west and paralleling Morris Ranch Road. Ca. 0.2 miles southwest of the FS roads junction with Morris Ranch Road. North east of Garner Valley. 1616 Comment
  UCR34873  Dyssodia pentachaeta L. B. Ziegler 1966-6-15 060 Riverside San Jacinto Mountains, Pinyon Flats, N end on S slope of small hill c. 0.25 mi from old loading corral. 1250 Comment
  POM356492  Dyssodia porophylloides Christopher Davidson, J. Jones 1980-4-4 9958 Riverside Orocopia Mts. West end of the mountains in a small canyon and wash almost due south of Oro Peak. 518 Comment
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Sep 17 2011
  JOTR34062  Echinocereus engelmannii La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2960 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; loamy-gravel, steep, southeast facing slopes above Lost Horse Mine Trail Comment
  UCR85593  Echinodorus berteroi Julie A. Greene, S. D. Boyd,, D. E. Bramlet, H. Flores, H. Ochoterana 1993-7-9 1414 Riverside San Jacinto Valley, San Jacinto Wildlife Area [northwest of Lakeview] 433 Comment
  UCSB52656  Elatine californica Thorne, Robert; Thorne, M.; Wisura, Walter 1978-5-21 Riverside Santa Rosa Plateau: Mesa de Colorado; W and S margin of vernal marsh 609 Comment
  SD138882  Elatine chilensis Craig Reiser 1993-3-8 Riverside Menifee Valley, near Menifee Road, in agricultural drainage in unvegetated, disked field Comment
  JOTR00974  Eleocharis macrostachya Cole, James E. 1941-5-27 811 Riverside Joshua Tree National Park. BARKER DAM Comment
  CAS-BOT-BC113301  Eleocharis parishii John Thomas Howell 1927-8-1 2878 Riverside Wet ground on Mission Creek T Cross K Ranch, n. Colorado Desert. 609 Comment
  SBBG54319  Eleocharis parishii C. Davidson 1977-5-25 5647 Riverside Mesa de Burro, Santa Rosa Plateau 701 Comment
  UCR117076  Elymus condensatus A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-9 24226 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
  UC188950  Elymus elymoides subsp. elymoides H. M. Hall 1899-5-25 1177 Riverside El Toro region San Jacinto Mountains Comment
  CAS-BOT-BC206525  Elymus glaucus subsp. glaucus Steve Boyd; Tim Ross 1992-5-4 7203 Riverside Sourthern Santa Ana Mountains, San Mateo Canyon Wilderness Area, Oak Flats area east of Verdugo Potrero 731 Comment
  RSA249846  Elymus glaucus subsp. glaucus R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38111 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon 1677 Comment
  RSA507944  Elymus glaucus subsp. virescens Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2262 Riverside Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest. 1500 Comment
  UCR2365  Elymus triticoides H. J. Webber 1918-6-9 37 Riverside Santa Ana River Valley, shady roadside north of Riverside [probably on North Main St. near Spring Brook] 250 Comment
  UCR158327  Emmenanthe penduliflora A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30069 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
  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
  CAS-BOT-BC131163  Encelia actoni Lewis S. Rose 1935-12-21 35680 Riverside Cabazon 609 Comment
  CAS-BOT-BC131165  Encelia actoni H. M. Hall 1901-6-1 2007 Riverside San Jacinto Comment
  UC1118035  Encelia actoni A. Lewis 1933-1-26 140 Riverside Cactus Valley San Jacinto Quad., Cactus Valley 640 Comment
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Mar 20 2011
  UC154553  Encelia actoni unknown 1904-5-1 302 Riverside Cabazon 579 Comment
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Mar 28 2015
  UCR82902  Encelia actoni A. C. Sanders, S. D. White, C. L. Sanders 1994-10-9 15801 Riverside San Bernardino Mtns., Whitewater Canyon, 2 mi below trout farm, above Bonnie Bell 564 Comment
  UCR101340  Encelia californica A. C. Sanders, N. Ferguson 1997-3-20 20066 Riverside Riverside area, March Air Force Base, west of Hwy 215 at west end of Cactus Ave., vicinity of former weapons storage facility 518 Comment
  HSC29901  Encelia farinosa Richard Spjut 1972-2-7 2178 Riverside Colorado Desert; 12 mi. S of jct. 95 on Hwy. 78 near San Bernardino County Line 305 Comment
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Jun 20 2013
  RSA678220  Encelia farinosa Valerie L. Soza, J. Mark Porter, Gary D. Wallace 2001-4-2 1087 Riverside Little San Bernardino Mountains region: Big Morongo Wash. 473 Comment
  RSA795928  Encelia farinosa Duncan S. Bell 2009-4-19 281 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  SEINET2050632 Image available Encelia farinosa H. S. Gentry 1948-5-29 8170 Riverside Cajalco Road, Comment
  SEINET242415  Encelia farinosa Donald Kyhos 1965-3-13 65 -111 Riverside 6.2 mi W of junction Hwy 78 and Hwy 60-70 near Blythe. Comment
  UC1777709  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); ; [6.7 miles west of junction...](label reads 6.7, assumed to be in error, by inference from five records of duplicates in database) Comment
  UCR108397  Encelia farinosa D. L. Banks, V. W. Steinmann 1997-3-13 1462 Riverside NW Palomar Mtns, Agua Tibia Mtns, Vail Lake area, N and just south of Hwy 79; hills (burned in the Vail fire of May 1996) east of the Dripping Springs alcove and west of Vail Lake Marina Rd 549 Comment
  UCR91469  Encelia farinosa Scott D. White 1995-3-30 2682 Riverside San Jacinto Valley, Moreno Valley: base of Badlands slopes, north of Highland Blvd & west of Theodore St 579 Comment
  RSA33820  Encelia farinosa var. farinosa Norman C. Cooper 1944-3-26 1038 Riverside Morongo Pass, Floor of canyon. 457 Comment
  SEINET3004980  Encelia farinosa var. phenicodonta G. Rink, M. Baker 2011-4-1 10407 Riverside Northwest of Blythe, east of the McCoy Mtns, vegetated pockets in desert pavement 170 Comment
  CAS-BOT-BC131442  Encelia frutescens R. D. Alderson 1895-3-31 967 Riverside [Palmetto Spg.,] Palm Springs, Colo. Desert 243 Comment
  UCR104016  Encelia frutescens George K. Helmkamp 1998-4-4 3132 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  JEPS49102  Ephedra Dr. L. M. Newlon 1922-4-3 442 Riverside Andreas Canyon Mt. San Jacinto, Andreas Canyon Comment
  NY70192  Ephedra aspera I. W. Clokey 1935-4-17 6512 Riverside Cottonwood Springs Comment
  RSA383861  Ephedra aspera N. R. Zabriskie 1969-1-4 177 Riverside Andreas Canyon near Palm Springs. Comment
  RSA383868  Ephedra aspera N. C. Cooper 1949-4-8 3285 Riverside Desert Center. 609 Comment
  UCR60909  Ephedra aspera R. F. Thorne, A. Shmida, Robert Whittaker 1978-4-23 52061 Riverside Santa Rosa Mtns./Colorado Desert, Palms to Pines Hwy: along the highway Comment
  CAS-BOT-BC81543  Ephedra californica H. M. Hall 1905-5-2 5979 Riverside Chuckawalla Peak Comment
  UC407312  Ephedra californica LeRoy Abrams 1903-4-6 3204 Riverside Palm Springs Comment
  UC729947  Ephedra nevadensis B. D. Stark 1932-6-17 Riverside canyon above Cottonwood Springs; Colorado Desert, Eagle Mts. 396 Comment
  UC813690  Ephedra nevadensis C. L. Hitchcock 1940-3-29 5868 Riverside Cottonwood Canyon Cottonwood Canyon (ca 100 yds e of Spring in sandy wash) Comment
  SD27998  Ephedra trifurca Carl B. Wolf 1932-4-29 Riverside 3 miles south of Rice on Blythe Road 214 Comment
  RSA522101  Epilobium ciliatum subsp. ciliatum Steve Boyd, T. S. Ross 1989-8-28 3794 Riverside Vail Lake area, Temecula Creek at confluence with lake and adjacent sedimentary hills to the east. 442 Comment
  RSA72167  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-7-28 5012 Riverside Pine Flats Camp 1799 Comment
  SBBG94827  Epilobium densiflorum E. LaRue 1989-7-13 Riverside Santa Rosa Plateau, N side of Tenaja Rd where De Luz Crk crosses rd, NW of Mesa de Colorado Comment
  OBI5914  Epilobium oregonense Carl B. Wolf 1932-8-5 3961 Riverside On trl from Tahquitz Valley to San Jacinto Peak head of a fork of Tahquitz Crk 2743 Comment
  RSA586936  Equisetum laevigatum Darin L. Banks, Peter Morrell 1995-5-4 302 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, N of the Wildhorse Trail, along Arroyo Seco. 597 Comment
  UCR176681  Eragrostis G. S. Nuessly 1980-10-14 s.n. Riverside Riverside: U.C. Riverside campus, above Picnic Hill 351 Comment
  RSA326148  Eragrostis cilianensis John F. Emmel 1981-6-27 787 Riverside Hemet, near intersection of Stanford Strret and Stetson Ave. 488 Comment
  SEINET2473419 Image available Eragrostis curvula Andrew C. Sanders 2011-1 38904 Riverside Peninsular Range; city of Lake Elsinore, old section of Hwy 74 (bypassed) west of Ardenwood Way, curving around a rocky hill, roadside along current Hwy 74 toward Ardenwood. 420 Comment
  SEINET260215 Image available Eragrostis mexicana M. Curto, Linda Allen 1990-1 692 Riverside San Jacinto Mts; Mountain Center, jct CA Hwy 74 & CA Hwy 243, NW corner 1365 Comment
  UCR205985  Eragrostis mexicana Mike Misenhelter 2009-7-29 s.n. Riverside Peninsular Range/ San Bernardino Valley, Riverside; Arlington area, west side of Van Buren Blvd. at north side of Lincoln St., across from drive-in theater 259 Comment
  RSA577755  Eragrostis mexicana subsp. mexicana F. M. Reed 1907-11-24 2000 Riverside Santa Ana River botton near Chinese Gardens Comment
  RSA544281  Eragrostis pectinacea Steve Boyd, Timothy S. Ross 1991-6-14 6366 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 Spings. Comment
  UCR114144  Eremalche exilis B. G. Pitzer, J. Ross 1998-3-8 3605 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  RSA432695  Eremalche rotundifolia Anstruther Davidson 1903-5-3 900 Riverside Thermal. Comment
  RSA726572  Eremalche rotundifolia Naomi S. Fraga, Lisa Rojas 2005-2-10 1408 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 502 Comment
  SD113836  Eremalche rotundifolia Darley F. Howe 1949-3-21 1972 Riverside 5.0 miles west of Blythe. Comment
  RSA421558  Eremocarpus setiger M. M. Thompson 1947-6-9 C- 2065 Riverside Los Alamos Canyon, Elsinore. 762 Comment
  RSA658704  Eremogone ferrisiae J. C. Roos 1965-7-22 s.n. Riverside Thomas Valley, San Jacinto Mtns. Comment
  SBBG60443  Eremothera boothii subsp. condensata L. Rowntree 1930-5-7 Riverside Hidden Springs Comment
  UCSB4375  Eremothera boothii subsp. condensata Koran, John 1958-4-10 Riverside 2.2 miles West on HWY 74 from intersection with HWY 111 Comment
  UCSB4441  Eremothera boothii subsp. condensata Broder, Richard 1958-3-1 Riverside 1.5 miles south of south entrance to Joshua Tree National Monument on U.S. 60-70 Comment
  RSA0105464  Eriastrum densifolium subsp. densifolium Julian P. Donahue 1984-10-6 90405 Riverside Pinyon Crest, Pinyon Flat, between San Jacinto & Santa Rosa Mts. 1249 Comment
  UCR3477  Eriastrum eremicum Sally Bell 1964-4-18 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, on Indian Ave. about 3 mi. from the junction with the 29 Palms Hwy, on east side of road along shoulder 396 Comment
  UCSB41261  Eriastrum eremicum Cowan, Clark 1978-6-23 Riverside 6.3 mi. S. on Hwy 74 from its jct. with Hwy 111 at Indian Wells; Whittaker transect #W 219 480 Comment
  CAS-BOT-BC514475  Eriastrum eremicum subsp. eremicum Alice Eastwood 1913-4-30 2984 Riverside Palm Springs Comment
  UC971781  Eriastrum eremicum subsp. eremicum H. K. Wagnon 1944-5-30 411 Riverside Corner of Indian Ave and Ramon Road, Palm Springs. Comment
  CAS-BOT-BC514457  Eriastrum eremicum subsp. eremicum L. R. Abrams 1926-3-26 11089 Riverside Between Edom and Garnet, east of San Gorgonio Pass Comment
  CAS-BOT-BC514473  Eriastrum eremicum subsp. eremicum Dr. E. Rixford 1917-4-17 s.n. Riverside Coachella Valley Comment
  UCR50777  Eriastrum filifolium Bill Wagner 1988-4-5 s.n. Riverside Approximately 1.5 mi NW of the community of Murrieta. south side of I-15 Fwy at the junction of Nutmeg Rd. and Adams Rd. 381 Comment
  JOTR33874  Eriastrum harwoodii La Doux, Tasha, A. Miller and G. Clifton 2009-4-9 3049 Riverside Joshua Tree National Park. north eastern tip of Eagle Mountains; sand ramps interspersed w/ basalt outcrops 349 Comment
  UC729736  Eriastrum harwoodii Carl B. Wolf 1932-4-29 3119 Riverside on Blythe Rd 3 mi s Rice; Eastern Colorado Desert 213 Comment
  UCR174561  Eriastrum sapphirinum Holly Summers, Jennifer H. Jones and Thi (Teresa) Bui 2006-5-31 s.n. Riverside Peninsular Ranges, San Jacinto Mtns., Just south of Mt. Edna Rd. on Calif. Hwy 243 1143 Comment
  UCR220118  Eriastrum sapphirinum D. E. Bramlet 1989-4-7 1820 Riverside Peninsular Range; Perris-Aguanga Basin region, Lake Skinner County Park, southeast slope of Bachelor Mountain, c. 3000 ft. west of Rawson Canyon & 2000 ft. north of Lake Skinner 488 Comment
  UCR260549  Eriastrum sapphirinum T. B. Salvato, Matt Malle 2014-5-29 8021 Riverside Perris-Aguanga Basin, Menifee, northeast corner of Bundy Canyon Road and Cottonwood Hills (= Sunset Ave), c. 1 mi west of Murrieta Rd and 4.3 mi southeast of Canyon Lake 534 Comment
  RSA0122949  Eriastrum sapphirinum subsp. dasyanthum A. C. Sanders 2004-5-5 27763 Riverside Gavilan Hills; route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, ca. 0.25 mi. NNW of Harford Spring, ca. 1.2 mi. NE of Gavilan Peak. 579 Comment
  RSA0121580  Eriastrum sapphirinum subsp. dasyanthum E. W. Lathrop 1960-6-9 4946 Riverside 14 miles west of Murrieta. Comment
  GMDRC6582  Eriastrum sapphirinum subsp. sapphirinum J. M. Andre 2012-6-15 30544 Riverside San Jacinto Mountains: west slopes of range along Poppet Flat Rd, Poppet Creek canyon, 3.2 mi. west of Hwy 243 1022 Comment
  SBBG5836  Eriastrum sparsiflorum H. and M. Dearing 1940-6-9 4360 Riverside E of Hemet on Palms to Pines Hwy Comment
  SBBG119489  Ericameria cooperi var. cooperi Leota Davidson 1965-5-14 182 Riverside Joshua Tree Nat Monument Comment
  CAS-BOT-BC286792  Ericameria cuneata var. spathulata Nancy Ryan Zabriskie; Walter Zabriskie 1970-3-24 255 Riverside East of so. end of Marion Ridge Rd., Pine Cove, Idyllwild, San Jacinto Mts. 1828 Comment
  POM305655  Ericameria linearifolia Henry J. Ramsey, Henry J. Ramsey 1939-4-22 1011 Riverside Hemet-Anza, Bautista Creek Road. Comment
  UCD131421  Ericameria linearifolia Nancy Ryan Zabriskie; Walter Zabriskie 1972-3-30 491 Riverside West of Sugarload Mountain along Carrizo Road (6S03); northwest of Hwy 74, Santa Rosa Mountains. 1219 Comment
  UC1329850  Ericameria nauseosa var. mohavensis James E. Cole 1941-10-20 31 Riverside Optimist Mine Road Joshua Tree National Monument, Lost Horse Valley 1310 Comment
  JEPS20353  Ericameria palmeri var. pachylepis A. E. Wieslander 1929-1-25 Riverside n of Bautista Creek (w slope of San Jacinto Mts.); San Jacinto Mts. Comment
  CAS-BOT-BC299537  Ericameria paniculata Lewis S. Rose 1946-12-25 46307 Riverside 5 miles east of Cabazon, San Gorgonio Pass Comment
  SD43541  Ericameria paniculata Philip A. Munz 1946-10-20 11585 Riverside Cottonwood Springs, Joshua Tree National Monument. 1064 Comment
  RSA606372  Ericameria parishii Jon E. Keeley, J. T. Rothrock 1992-11-11 22534 Riverside Andreas Canyon, ca. 5 km east of Saddle Junction, San Jacinto Wilderness area, eastern San Jacinto Mountains. 1950 Comment
  RSA736780  Ericameria parishii Scott D. White, Angelia Carey 2004-7-2 10559 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. 549 Comment
  UCR140875  Ericameria parishii Chris E. True, Laurel Salzman 2004-8-20 s.n. Riverside San Jacinto Mtns., c. 1 km south of Twin Pines Ranch on USFS Rd 3S08, between Azalea and Twin Pines Creeks 1157 Comment
  CAS-BOT-BC131642  Ericameria parishii var. parishii Edmund C. Jaeger 1923-7-12 1004 Riverside East slope San Jacinto Mts. 2133 Comment
  VVC61  Erigeron foliosus A. C. Sanders, J. Mac 1997-5-4 20685 Riverside San Jacinto Mountains, N side of the range, Twin Pines Creek below the confluence with Brown Creek. 854 Comment
  SBBG55777  Erigeron foliosus var. foliosus D. Keil, M. McLeod 1977-3-26 12016 Riverside 9 mi E of jct with Interstate 15 along Hwy 79 518 Comment
  UCR16872  Erigeron foliosus var. foliosus Kirk Taylor 1976-5-23 76-5-23- 12 Riverside Peninsular Range, Mesa de Colorado, 7 mi west of Murrieta on Tenaja Rd 549 Comment
  UCR34966  Erigeron foliosus var. foliosus L. B. Ziegler 1967-6-15 161 Riverside San Jacinto Mtns, Bautista Creek Canyon 732 Comment
  UCD65739  Eriochloa contracta Edward G. Wegenek 1970-8-24 Riverside Southeastern part, collected in the Blythe area. Comment
  CAS-BOT-BC189073  Eriodictyon crassifolium Roxana S. Ferris; Ruth P. Rossbach 1938-5-20 9660 Riverside 3 miles below junction of Idyllwild Road on State Highway 74 Comment
  CAS-BOT-BC189075  Eriodictyon crassifolium W. R. Dudley 1903-12-25 s.n. Riverside Tahquitz Canon [Canyon], near Palm Springs Comment
  CAS-BOT-BC189082  Eriodictyon crassifolium P. A. Munz 1932-4-24 12390 Riverside Snow Creek Canyon, San Jacinto Mountains 457 Comment
  HSC84146  Eriodictyon crassifolium Sharon K. Dubois 1987-5-10 Riverside San Jacinto Mtn., 1 mi. up Bee Canyon off Hwy. 74 457 Comment
  POM13818  Eriodictyon crassifolium P. A. Munz 1922-4-28 5055 Riverside Leach Canyon, Santa Ana Mts. 610 Comment
  POM3882  Eriodictyon crassifolium L. T. Street, M. Durant 1918-5-12 s.n. Riverside San Jacinto River Canyon. Comment
  CAS-BOT-BC189130  Eriodictyon crassifolium var. crassifolium Ynez W. Winblad 1938-5-15 s.n. Riverside Between El Capistrano and Lake Elsinore Comment
  JOTR32457  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
  SEINET13262873 Image available Eriogonum apiculatum L. C. Wheeler 1945-1 6412 Riverside divide between West Fork Snow Creek and North Fork San Jacinto River 2378 Comment
  CAS-BOT-BC242801  Eriogonum davidsonii H. M. Hall 1901-6-1 2088 Riverside San Jacinto Mountains. In the vicinity of Chalk Hill 1524 Comment
  CLARK-A1528-3634  Eriogonum davidsonii Robin L. Kobaly 1977-8-26 Riverside San Jacinto Mountains Comment
  JOTR35460  Eriogonum davidsonii Harding, Mitzi, M. Wheeler, K. Callahan, C. Barrows 2013-4-25 63 Riverside Joshua Tree National Park. Little San Bernardino Mtns. W of Juniper Flats (stop4) Comment
  SBBG1478  Eriogonum deflexum H. and M. Dearing 1949-4-16 6751 Riverside Box Cyn Comment
  UC667354  Eriogonum deflexum var. deflexum Annie M. Alexander and Louise Kellogg 1941-5-15 2187 Riverside n base of Eagle Mountains Colorado Desert, Eagle Mountains 914 Comment
  CAS-BOT-BC249959  Eriogonum fasciculatum var. foliolosum Mrs. E. C. Van Dyke 1928-7-1 s.n. Riverside Near Idyllwild, along road Comment
  UC85799  Eriogonum fasciculatum var. foliolosum J. W. Toumey 1894-9-27 Riverside Banning Comment
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Mar 13 2011
  RSA0034568  Eriogonum fasciculatum var. foliolosum M. M. Thompson 1947-8-21 C 2058 Riverside Los Alamos Canyon, Elsinore. 762 Comment
  UC849424  Eriogonum fasciculatum var. polifolium I. Johnston 1917-6-5 1240 Riverside hills s Arlington 365 Comment
  RSA741733  Eriogonum gracile var. incultum M. Wall 2008-10-6 495 Riverside San Jacinto Valley, Baustista Rd. south east of Hemet; Bautista Creek ca. 6.0 miles SE of Fairview Ave. 778 Comment
  RSA78289  Eriogonum gracile var. incultum P. A. Munz, E. K. Balls 1952-8-21 17966 Riverside Hamilton Creek, s.e. part of San Jacinto Mts. 1372 Comment
  UCD100277  Eriogonum inflatum L. S. Rose 1935-12-30 s.n. Riverside Hot Springs, 7 miles north of Garnet, Colorado Desert. 609 Comment
  SBBG64073  Eriogonum molestum R. Hoffmann 1929-9-7 Riverside Strawberry Valley 1645 Comment
  SEINET5330787  Eriogonum molestum I. W. Clokey, E. G. Anderson 1935-8-21 6594 Riverside East of Keen Camp P.O. 1370 Comment
  RSA339230  Eriogonum nidularium Robert F. Thorne, Rolf, Gertrud Dahlgren 1979-8-23 53598 Riverside Pinto Basin Road: Along road at meeting area of Mojave and Colorado Deserts 1098 Comment
  POM48879  Eriogonum nudum var. pauciflorum P. A. Munz, I. M. Johnston 1924-7-27 8736 Riverside Dark Canyon, San Jacinto Mountains. 2287 Comment
  UC849625  Eriogonum nudum var. pauciflorum I. W. Clokey, E. G. Anderson 1935-8-21 6590 Riverside Keen Camp P.O. 1425 Comment
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Nov 20 2010
  UCR35089  Eriogonum nudum var. pauciflorum L. B. Ziegler 1967-8-30 232 Riverside San Jacinto Mtns., Upper Strawberry Valley under Lily Rock. 1982 Comment
  POM307287  Eriogonum parishii Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2132 Riverside Santa Rosa Mountains. Comment
  JOTR33762  Eriogonum pusillum La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2760 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Large sandy canyon with braided wash that feeds southwest into Wilson Canyon (Stop 7) 902 Comment
  RSA772136  Eriogonum pusillum Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4977 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
  UC1329839  Eriogonum pusillum James E. Cole 1941-5-30 832 Riverside Quail Mountain Joshu Tree National Monument, Quail Mountain 1524 Comment
  RSA339321  Eriogonum reniforme Robert F. Thorne, W. A. Tilforth 1980-5-28 54180 Riverside San Bernardino Mountains: Whitewater ridge above old bridge. Comment
  UC604978  Eriogonum reniforme Roxana S. Ferris and Ruth P. Rossbach 1938-5-15 9526 Riverside 16 mi from Cottonwood Springs; Pinto Basin Comment
  UCR199838  Eriogonum reniforme Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11294 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage, within boundaries of U.S. Navy Chocolate Mountains Aerial Gunnery Range 570 Comment
  JEPS56317  Eriogonum saxatile H. M. Hall May 17 1901-Jun 1 1901 1842 Riverside Comment
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Sep 17 2011
  JEPS56270  Eriogonum thomasii Marjorie D. Clary 1932-5-25 1695 Riverside Berdoo Canyon Colorado Desert, Little San Bernardino Mts., Berdoo Canyon 762 Comment
  RSA27480  Eriogonum thomasii I. L. Wiggins 1941-3-24 s.n. Riverside East side of Salton Sea, 1 mile north of Imperial Co. Line Comment
  RSA424961  Eriogonum thomasii M. B. Dunkle 1932-3-25 2904 Riverside Cathedral Canyon Comment
  UC1080450  Eriogonum thomasii P. C. Everett and E. K. Balls 1958-4-29 22960 Riverside U.S.Hwy 60/70 (Indio to Blythe) 5 mi e U.S. Hwy. 99 121 Comment
  UC1287160  Eriogonum thomasii C. L. Hitchcock 1966-3-20 24312 Riverside hills just n Milpitas Wash (Ogilby-Blythe Rd.) Comment
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Mar 2 2013
  UCR72234  Eriogonum thomasii Theo Glenn 1991-5-24 91- 131 Riverside Sonoran (Colorado) Desert, Palen Mtns, NE of Desert Center 399 Comment
  CAS-BOT-BC262877  Eriogonum thurberi Susan G. Stokes 1933-7-1 74 Riverside Road to Idyllwild 1219 Comment
  RSA65309  Eriogonum thurberi F. W. Peirson 1922-5-19 4204 Riverside 5 miles northeast of Murrieta. Comment
  RSA0056351  Eriogonum thurberi Nancy Anderson 1955-5-19 s.n. Riverside Dead Indian Canyon. 304 Comment
  SEINET6894827  Eriogonum thurberi Wanda P. Vestal, A. G. Vestal 1955-4-21 s.n. Riverside Just west of Perris at base of Gavilan Hills. Comment
  UCR63890  Eriogonum viridescens B. G. Pitzer 1989-4-16 1295 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, just outside impact area, 1 km south of Tabaseca Tank 700 Comment
  UCSB24382  Eriogonum wrightii Wheeler, Louis 1933-12-1 Riverside Mouth of Tahquitz Canyon; San Jacinto Mts 152 Comment
  CAS-BOT-BC264922  Eriogonum wrightii var. membranaceum Marcus E. Jones 1924-8-29 s.n. Riverside Idyllwild Comment
  POM357896  Eriophyllum ambiguum var. paleaceum Anstruther Davidson 1893-4-12 s.n. Riverside Palm Springs. Comment
  RSA682170  Eriophyllum ambiguum var. paleaceum Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10480 Riverside East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  CAS-BOT-BC297354  Eriophyllum confertiflorum C. L. Hitchcock; C. V. Muhlick 1964-3-17 23106 Riverside 10 miles N of Pala, on road to Elsinore Comment
  POM172018  Eriophyllum confertiflorum P. A. Munz 1930-5-1 11918 Riverside Dry Morongo Wash, Little San Bernardino Mts 183 Comment
  RSA508339  Eriophyllum confertiflorum Ed LaRue 1989-5-28 s.n. Riverside 1.5 mi. NW Estelle Mountain, off Dawson Canyon Road; 1.5 mi. E. of Arcilla and 1.5 mi. SW of Monument Peak. 396 Comment
  SEINET2051130 Image available Eriophyllum confertiflorum Howard S. Gentry 1947-4-20 7631 Riverside Gentry Farm 3 miles NE of Murrieta. 396 Comment
  LA203544  Eriophyllum confertiflorum var. confertiflorum Elizabeth McClintock; 1935-3-3 sn Riverside Pedley Hills Comment
  UC63031  Eriophyllum confertiflorum var. confertiflorum H. M. Hall 1899-5-1 Riverside Van de Venter's San Jacinto Mountains 1371 Comment
  UCR175239  Eriophyllum confertiflorum var. confertiflorum Jim Andre 2006-4-26 6746 Riverside South Mojave Desert, Joshua Tree National Park: c. 5 mi NNE of Rattlesnake Spring, on ridge just south of radio tower and NE corner of park boundary 1321 Comment
  RSA203060  Eriophyllum multicaule James Henrickson 1967-4-30 2462 Riverside 2 miles N of Lake Elsinore. 396 Comment
  SEINET7042767  Eriophyllum multicaule 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
  JEPS119485  Eriophyllum wallacei Clark Cowan 1978-4-23 1214 Riverside 12.1 miles (19.2 km) S on Highway 74 from junction with Highway 111 at Indian Wells. Comment
  UCR238304  Eriophyllum wallacei Mark A. Elvin 2004-3-19 3188 Riverside Peninsular Range; San Jacinto Mtns., San Jacinto River canyon east of Hemet, along Hwy 74 at west base of mountains 630 Comment
  CLARK-A1656-629  Erodium cicutarium Lois Ann Scott 1978-4-3 Riverside Palm Springs 152 Comment
  RSA771754  Erodium cicutarium Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4631 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 610 Comment
  UCR92611  Erodium cicutarium Scott D. White 1994-3-29 1942 Riverside Beaumont Badlands, near county dump and old DeAnza Cycle Park, north of Hwy 60 701 Comment
  RSA614122  Erodium cicutarium D. L. Banks 1997-2-23 1289 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, south of Pechanga Road in the Reservation, north of Pechanga Creek, and east of the Pechanga Tribal Government Center. 367 Comment
  HSC8508  Erodium texanum C. L. Hitchcock 1966-3-20 24308 Riverside 30 mi. N of Ogilby, along road to Blythe Comment
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Mar 2 2013
  RSA390943  Erodium texanum M. B. Dunkle 1937-3-25 4935 Riverside Colorado Desert. Shaver s Well Comment
  RSA0130727  Erodium texanum Glen Rink 2013-3-18 11877 Riverside About twelve miles west of Blythe, at the site of the proposed Quartzite solar power plant. 105 Comment
  RSA343110  Eryngium aristulatum var. parishii R. F. Thorne, Wisura, Lathrop, S. Meury 1985-5-18 60649 Riverside Santa Rosa Plateau: Mesa de Colorado 625 Comment
  UC1237989  Erysimum capitatum John Weiler and Roy L. Taylor May 12 1961-May 15 1961 61119 Riverside along roadside on Hwy 74 1.4 mi se Kern Summit (nw of Hemet Reservoir) Comment
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Mar 24 2011
  SEINET10575508  Erysimum capitatum David B. Dunn 1946-8-17 Dunn 2700 Riverside On trail to Taquity from Taquity Valley campground. On dry hillside among braken fern. San Jacinto Mountains. 2499 Comment
  SD186340  Erythranthe guttata T. B. Salvato, Melissa Clemons 2005-6-23 1307 Riverside Temescal Valley: Walker canyon, 1.5 mi due E of Alberhill, N of Hwy I-15, stream at base of canyon 412 Comment
  RSA0014882  Erythranthe primuloides I. M. Johnston 1916-8-1 s.n. Riverside Round Valley, San Jacinto Mountains. 2744 Comment
  RSA757448  Eschscholzia californica Robert F. Thorne, E. W. Lathrop, S. Beckstrom-Sternberg, B. Martin 1982-05 55227 Riverside SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta 730 Comment
  UC455321  Eschscholzia californica I. J. Condit 1910-6-24 Riverside road to Strawberry Valley San Jacinto Mts. 914 Comment
  UCR51681  Eschscholzia californica Lyman Benson 1952-4-8 14850 Riverside Sonoran (Colorado) Desert, 2 mi. west of Shaver Summit [Chiriaco Summit] east of Indio, U.S. Hwy 66 518 Comment
  RSA495449  Eschscholzia californica subsp. californica Steve Boyd, Tim S. Ross, L. Arnseth 1989-3-18 2977 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  RSA445667  Eschscholzia minutiflora N. C. Cooper 1949-4-8 3243 Riverside Mecca Pass east of Indio. 610 Comment
  RSA717445  Eschscholzia minutiflora Scott D. White, Pam De Vries 2006-3-14 11257 Riverside North of the I-10 Freeway a few mi east of Indio, at proposed I-10 / McNaughton Parkway interchange. 91 Comment
  SBBG87721  Eschscholzia minutiflora S. Boyd with S. Meury, R. Noyes, L. Arnseth, T. Ross 1988-3-10 2116 Riverside N end of Palen Mtns, 2 mi W of Palen Pass 300 Comment
  CAS-BOT-BC419607  Eschscholzia parishii W. G. Wright 1890-4-1 s.n. Riverside Whitewater, Colorado Desert Comment
  JOTR28874  Eschscholzia parishii La Doux, Tasha, Bill Truesdell 2004-3-17 1109 Riverside Joshua Tree National Park. Cottonwood Mtns; just north of southern boundary 563 Comment
  UC855179  Eschscholzia parishii C. L. Hitchcock 1940-3-29 5861 Riverside ca 100 yd e Spring; Cottonwood Canyon Comment
  CHSC98207  Eucalyptus A. C. Sanders 1992-3-1 12039 Riverside University of California, Riverside. Australian section of UCR Botanical Garden. Grid Cell R-3. UCR BG Ass. # unknown, label lost. #121A on Kucera/Morgan temp. Aust. sect. map. NW edge of trail. 366 Comment
  UCR132713  Eucalyptus camaldulensis A. C. Sanders, O. F. Clarke 1991-6-10 11123 Riverside Upper Santa Ana River/San Bernardino Valley, Riverside, along Spring Brook between Lake Evans (Fairmont Park) & the Santa Ana River 238 Comment
  OBI38361  Eucalyptus rudis Alden Kelly 1986-3-17 s.n. Riverside Edgemont area of Moreno Vallye, from planting along W side of hwy 215 at Eucalyptus Ave, row runs ca 1 mi along 215 457 Comment
  UCR199790  Eucalyptus tereticornis Scott D. White, Justin M. Wood 2008-6-24 12282 Riverside Beaumont Badlands, San Timoteo Canyon, meadow along San Timoteo Creek 671 Comment
  HSC85458  Eucrypta chrysanthemifolia Steve Boyd 1986-4-2 1602 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  UCR91593  Eucrypta chrysanthemifolia var. chrysanthemifolia D. L. Banks, Steve Boyd 1995-4-5 159 Riverside Agua Tibia Mountains, Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn, east of the Dripping Springs Alcove, east of the Dripping Springs Trail, in the N flowing drainage that empties into Arroyo Seco. 549 Comment
  SD241045  Eucrypta micrantha Dave Silverman, Onkar Singh 2010-3-27 7865 Riverside McCoy Wash, N of Palo Verde Mesa, 5.3 km W of Mesaville siding, W of A Canal/Levee Blvd, and ca. 7 km N of Blythe Airport. 135 Comment
  SD137702  Eulobus californicus Darin L. Banks, Steve Boyd 1995-5-3 233 Riverside Agua Tibia Wilderness Area; north slope of Agua Tibia Mountain, east of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 512 Comment
  UCR240267  Euphorbia abramsiana Neal Kramer, Wendy McBride 2012-9-3 2068 Riverside Sonoran (Colorado) Desert, south side of Power Line Rd c. 2.75 miles east of Wily's Well Rd and 1.65 miles south of I-10 Fwy 129 Comment
  UCR194233  Euphorbia lathyris Scott D. White, J. Wood 2006-9-13 11644 Riverside Perris Basin/San Jacinto Mtn Foothills, Gibbel Flat in the Santa Rosa Hills 671 Comment
  UCSB31747  Euphorbia lurida Griesel, Wesley 1962-6-29 Riverside Dark Canyon, San Jacinto Mts. 1920 Comment
  UCR139980  Euphorbia maculata A. C. Sanders 2004-8-10 28768 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
  RSA339680  Euphorbia misera R. F. Thorne 1980-5-25 54154 Riverside S-facing and W-facing, N-S rocky ridge at E side of Whitewater River at mouth of canyon. ca. 1/4-1/2 mile E of Whitewater Post office; S-facing end of rocky ridge above old rad, due N o hwy to Indio. Comment
  UC162561  Euphorbia palmeri H. M. Hall 1898-6-30 Riverside s side San Jacinto Mountains 1600 Comment
  CLARK-A1528-2643  Euphorbia polycarpa S. C. Warner 1956-5-17 82 Riverside Riverside Comment
  SDSU12950  Euphorbia polycarpa Jutta Buschbom 1991-6-10 33 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
  UCR178313  Euphorbia serpillifolia T. B. Salvato, Tracy Tennant 1998-7-18 MOR- 613 Riverside San Bernardino Mtns., Morongo Indian Reservation, vicinity of Wood and Potrero Canyons 1280 Comment
  OBI14390  Euphorbia setiloba Robert F. Hoover 1966-10-15 10166 Riverside Dead Indian Cyn Comment
  UCR35601  Eustoma exaltatum J. M. Stewart 1984-6-18 8447 Riverside Santa Rosa Mtns., Bear Creek Oasis 854 Comment
  HSC101529  Fagonia laevis J. P. Smith, J. O. Sawyer, R. J. Cole 2010-4-18 12774 Riverside 457 Comment
  RSA645637  Fagonia laevis Scott D. White 1999-4-20 7274 Riverside Blythe Area: Southern foothills of the Big Maria Mts., northwest of Calif. Hwy. 95, ca. 7 road miles north of Interstate 10 / Intake Blvd. jtn. in Blythe. 91 Comment
  SEINET885157  Fagonia laevis A. C. Sanders, Pitzer, Charlton, Kniffen 1986-1 6100 Riverside Corn Spring, Chuckwalla Mountains, wash below the spring and wash and rocky to the south. 487 Comment
  UC1595750  Fagonia laevis W. Wisura, J. Dolan, M. Wall 1992-3-24 4642 Riverside on road to Corn Spring (5.6 mi s of I-10) Comment
  RSA605772  Fagonia pachyacantha A. C. Sanders 1995-5-23 17115 Riverside Colorado Desert, Coachella Valley: alluvial fans below the Santa Rosa Mtns., N of Toro Cyn., W of Monroe St., S. of Ave. 62 15 Comment
  UCR260260  Fagonia pachyacantha A. C. Sanders, Jim Malusa 2015-3-11 41400 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Gasline Road south of junction with road to Observation Point Slats, c. 3.9 miles south of the Bradshaw Trail, US Navy Chocolate Mountains Aerial Gunnery Range 674 Comment
  UCR20530  Festuca grayi John C. Roos 1952-4-9 5482 Riverside Hill by Fairmont Park, Riverside 259 Comment
  UCR225588  Festuca microstachys A. C. Sanders, T. B. Salvato 2011-3-29 38868 Riverside Peninsular Range; Perris-Aguanga Basin Region, between Sun City and Perris, along powerline corridor 0.45 east of Goetz Rd. and 0.07 km east Wheat St. 450 Comment
  UCR260587  Festuca octoflora A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-3 41556 Riverside Peninsular Range, Eastern Foot of the Santa Ana Mtns., Temescal Canyon NW of Horsethief Canyon Rd. along DePalma Rd., SE of Glen Eden Rd. and south of the east end of Lee (Corona) Lake, south side of I-15 370 Comment
  UCR41825  Festuca octoflora A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6125 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  RSA316416  Filago californica R. F. Thorne, Kay Wright, R. K. Benjamin 1982-10-8 55398 Riverside San Bernardino Mts.: Side canyon on W side of Whitewater Cyn, ca. 3.3 mi. N of Whitewater Post Office. 595 Comment
  RSA613720  Filago californica D. L. Banks 1997-4-5 1693 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. South of Dorland Mountain, just west of the Wilderness Area boundry, along a tributary of the north fork of Pechanga Creek. 518 Comment
  UCR103908  Filago californica B. G. Pitzer 1997-4-11 3111 Riverside Lakeview Mtns, Pulsar View Road (dirt), at sharp turn in road c. 1 mi. (air) NE of Juniper Flat Road, and c. 3/4 -1 mi. by road from the base of the hills. C. 3/4 mi. (airline) SE of Mt. Rudolph (measured from BM 'Nelson') 610 Comment
  CLARK-A1528-5492  Forestiera neomexicana John C. Roos 1965-7-25 Riverside Santa Rosa Mountains Comment
  POM11930  Forestiera pubescens P. A. Munz, I. M. Johnston 1922-5-21 5511 Riverside Hemet Valley. 2 miles below Kenworthy, San Jacinto Mts. 1402 Comment
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Mar 25 2011
  JOTR16706  Fouquieria splendens subsp. splendens Cole, James E. 1941-5-21 762 Riverside Joshua Tree National Park. WEST END OF PINTO BASIN 487 Comment
  HSC86126  Fragaria vesca Jane Hildreth 1981-6-4 17 Riverside James Reserve in the San Bernardino National Forest along Hwy. 243, San Jacinto Mtns. 1616 Comment
  RSA0018447  Fragaria vesca F. W. Peirson 1922-5-19 3038 Riverside San Jacinto River. 1143 Comment
  CAS-BOT-BC211663  Frankenia salina R. F. Hoover 1968-6-6 11153 Riverside 1 mile east of Perris Comment
  UCR177107  Frasera parryi Michael D. Wilcox 2004-5-18 s.n. Riverside San Bernardino Mtns., top of Banning Canyon along Forest Service Rd. 1372 Comment
  UCR209165  Fraxinus pennsylvanica subsp. velutina A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37153 Riverside Peninsular Range, Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River 238 Comment
  UCD122023  Fraxinus velutina A. C. Sanders; O. F. Clarke 1991-6-10 11132 Riverside Upper Santa Ana River/San Bernardino Valley: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River. 238 Comment
  UC1979596  Fremontodendron californicum subsp. californicum D. L. Banks, Victor Steinmann 1995-7-10 0755 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along the Wildhorse Trail, W of lower Arroyo Seco, SE of Wildhorse Peak. Along the drainage S of the peak Agua. Comment
  UCD95139  Fumaria parviflora Gary W. Sanderson 1960-2-24 s.n. Riverside east side of State Highway 111, 1 mile north of Indio towards Palm Springs. Comment
  HSC101268  Funastrum hirtellum Jim Andre 2012-3-19 21374 Riverside Palen Valley; along Palen Pass Rd. (dirt), 7.1 mi. east of Hwy. 177. 321 Comment
  JOTR35003  Funastrum hirtellum La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3105 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road Comment
  RSA25130  Funastrum hirtellum C. L. Hitchcock 1940-3-31 5886 Riverside Between Cottonwood Spring and Pinto Basin. Comment
  UCR228166  Funastrum utahense Dave Silverman, Mark Bibbo 2010-3-31 7899 Riverside Sonoran (Colorado) Desert, southern McCoy Mtns, east bajada flank, 2.1 km west of Black Creek Rd, 6.5 km ENE of McCoy Peak and 6.6 km north of I-10 189 Comment
  UCD121580  Galium angustifolium A. C. Sanders 2004-4-20 27526 Riverside Santa Ana Mtns.: Santa Rosa Plateau, 0.5 km west of Tenaja Road and north of the San Diego county line. 640 Comment
  RSA221074  Galium angustifolium subsp. angustifolium E. W. Lathrop 1966-5-8 6423 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  UCR260193  Galium angustifolium subsp. angustifolium Duncan S. Bell, Caitlin Elam 2013-5-21 4966 Riverside San Jacinto Mountains, southern side of West Ridge at the southern end of Strawberry Valley . 1.75 air me southwest of Idyllwild 1592 Comment
  JOTR29520  Galium angustifolium subsp. gracillimum La Doux, Tasha 2005-11-21 1267 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Black Rock Springs area, near Warren Peak 1310 Comment
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May 29 2013
  POM48868  Galium angustifolium subsp. jacinticum Philip A. Munz, J. M. Johnston 1924-7-26 8702 Riverside Near Dark Canyon, San Jacinto Mts. 1524 Comment
  UC1324393 Image available Galium californicum subsp. primum Lauramay T. Dempster and C. Hardham 1965-6-18 4133 Riverside on road to Alvin Meadow (from Idyllwild); ; Riverside Co. Comment
  RSA36548  Galium hilendiae subsp. hilendiae Sara M. Schenck 1941-5-30 s.n. Riverside Quail Mt. Joshua Tree National Monument. 1585 Comment
  RSA457786  Galium stellatum Steve D. Boyd, Sara Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2212 Riverside Sonoran (Colorado) Desert NW end McCoy Mtns, NW of Blackjack Mine. 400 Comment
  UCR11206  Gamochaeta pensylvanica O. F. Clarke 1971-2-11 s.n. Riverside Riverside, University of Calif.: field crops area south of Pennsylvania Ave. 317 Comment
  UCR88574  Gamochaeta stagnalis A. C. Sanders, J. C. Lyman 1995-4-16 16566 Riverside San Bernardino Valley, Glen Avon: sand dune area on N slope of the Jurupa Hills (draining toward Fontana), Pyrite St. Canyon 335 Comment
  UC1871081  Garrya flavescens Steve Boyd, Chris Frazier 1993-4-24 8009 Riverside Peninsular Ranges; Palomar Mountains region; 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 rd. T8S R1W; SE 1/4, NE 1/4 sec. 32. Elev. 2600-2900 feet. Comment
  POM261681  Garrya flavescens var. pallida W. Pequegnat 1940-12-27 s.n. Riverside Between Trabuco and Santiago Pks., Santa Ana Mts. 1311 Comment
  RSA11403  Garrya flavescens var. pallida C. Epling 1932-5-28 s.n. Riverside Perris-Hemet. Comment
  UC21617  Garrya veatchii H. M. Hall Aug 1901 2645 Riverside vicinity Chalk Hill; San Jacinto Mountains 1402 Comment
  RSA797255  Gayophytum Robert F. Thorne, Walter Wisura 1977-9-17 50793 Riverside San Jacinto Mountain: slopes of peak 3171 Comment
  POM122259  Gayophytum diffusum subsp. parviflorum Marcus E. Jones 1924-8-29 s.n. Riverside Idyllwild, San Jacinto Mountains. Comment
  SBBG61279  Gayophytum ramosissimum R. Hoffmann 1929-9-5 Riverside Strawberry Valley 1828 Comment
  UCR95323  Gazania linearis Steve Boyd 1996-4-14 8546 Riverside Santa Ana Mtns., along Main Divide Road, just east of Sierra Peak at divide between Fresno and Fremont canyons. 884 Comment
  RSA0108940  Geraea canescens Duncan S. Bell, Amanda Bell 2012-1-28 3070 Riverside East side of the Arica Mountains; collecting in Rice Valley, approximately 6 air miles southeast of the ghost town of Rice. 202 Comment
  SBBG8229  Geraea canescens H. and M. Dearing 1930-4-13 2375 Riverside near Palm Cyn Comment
  UCR20774  Geraea canescens A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1311 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UC17149  Geranium californicum H. M. Hall 1901-7 Riverside Tauquitz Valley San Jacinto Mountains 2743 Comment
  SD186237  Geranium dissectum A. C. Sanders 2004-4-20 27569 Riverside Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line. 640 Comment
  SEINET7063416  Gilia achilleifolia subsp. multicaulis A. G. Vestal 1947-3-29 s.n. Riverside About 6.2 miles east of Lake Elsinore on Newport Road. UTM Zone 11, 481169mE, 3727240mN. (WGS84/NAD83). 434 Comment
  UC217962  Gilia angelensis P. A. Munz and I. M. Johnston 1922-5-19 5350 Riverside 5 mi ne Murietta; ne of Murietta 457 Comment
  UCR177945  Gilia angelensis Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 027 Riverside San Bernardino Mtns., Morongo Indian Reservation, side canyon east of Hathaway Canyon, tree stand F-06 915 Comment
  UCR196893  Gilia angelensis A. C. Sanders, T. B. Salvato 2008-2-19 34424 Riverside San Bernardino Valley Region, Riverside, vacant lot at NW corner of the intersection of Chicago Ave. and M. Luther King (ex Pennsylvania) Ave. 296 Comment
  CHSC35470  Gilia capitata subsp. abrotanifolia James Henrickson 1973-3-18 8597 Riverside 16 (air) miles E of Temecula, 2.9 miles E of Aguanga along Hwy 71. 822 Comment
  POM19650  Gilia diegensis Mary F. Spencer 1923-6-12 s.n. Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  UC52831  Gilia diegensis H. M. Hall April, 1902 2913 Riverside vicinity Winchester; vicinity of Winchester 457 Comment
Read comments
Mar 20 2011
  JEPS69628  Gilia latifolia W. L. Jepson 1914-5-18 6027 Riverside n Indio (County Well); Colorado Desert, n of Indio, County Well 304 Comment
  UCR167207  Gilia latifolia S. J. Myers 2005-3-24 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, east of N end of Salton Sea, along Coachella Canal 12 Comment
  UCR116977  Gilia ochroleuca A. C. Sanders, T. B. Salvato 2001-5-3 24086 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  UC23663  Gilia ochroleuca subsp. exilis H. M. Hall June, 1901 2212 Riverside along water courses in the vicinity Strawberry Valley; San Jacinto Mountains, vicin Strawberry Valley 1600 Comment
  UCR201467  Gilia ochroleuca subsp. exilis Scott D. White, Justin M. Wood 2008-5-15 11979 Riverside San Jacinto Mountains, Johnson Meadow 1476 Comment
  UCR256909  Gilia ochroleuca subsp. exilis Naomi Fraga, Duncan S. Bell 2009-5-6 2705 Riverside Arroyo Seco SE of Dripping Springs Campground and Fire Station 518 Comment
  RSA0017098  Gilia ochroleuca subsp. exilis N. C. Cooper 1944-6-17 1397 Riverside San Jacinto Mts., Pine Cove. 1524 Comment
  RSA0017105  Gilia ochroleuca subsp. exilis Verne Grant, Alva Grant 1951-7-22 16107 Riverside 1 mi. N of Fulmor Lake on road from Idyllwild to Banning 1372 Comment
  IRVC27470  Gilia scopulorum A. C. Sanders, E. J. Lawlor 1992-4-4 12145 Riverside McCoy Mtns, within 0.5 mi of McCoy Spring Colorado Desert 244 Comment
  UCR35048  Gilia splendens L. B. Ziegler 1977-6-5 569 Riverside San Jacinto Mtns, Banning/Idyllwild Road [Hwy 243] 1982 Comment
  SDSU3096  Gilia stellata H. Wedberg 1962-4-20 913 Riverside About 1 mile SE of Pinyon Flats on road to Palm Springs. 1219 Comment
  SEINET3163640  Gilia virgata var. dasyantha S. B. Parish 1907-4-19 6123 Riverside western border of the Colorado Desert 150 Comment
  UCD99616  Glinus lotoides D. E. Bramlet; A. C. Sanders, M. Costea, T. Salvato 1991-10-15 2821 Riverside Mystic Lake. This site is 198m S of Gilman Hot Springs Road, 1.22 km NW of Hwy 79 and 2.1 km S of Jackrabbit trail. 433 Comment
  UCR266906  Glycyrrhiza lepidota D. E. Bramlet 2005-5-24 3861 Riverside Perris-Aguanga Basin Region, Warm Springs Creek, west of I-15, between Golden Gate Circle and Nick Lane 323 Comment
  RSA798595  Gnaphalium beneolens R. F. Thorne, E. W. Lathrop 1977-5-18 49754 Riverside Santa Ana Mountains: Bear Spring [east slope of Santiago Peak] Comment
  SDSU12522  Gnaphalium californicum Shasta Gaughen, M. G. Simpson 2000-4-29 11 Riverside 0 Comment
  RSA356656  Gnaphalium palustre R. F. Thorne, C. W. Tilforth, Larry E. DeBuhr, E. W. Lathrop 1975-8-29 47311 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro 609 Comment
  RSA526078  Gnaphalium palustre Steve Boyd, T. S. Ross 1990-5-11 4632 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
  RSA617821  Gnaphalium palustre R. E. Riefner 1998-4-22 98 -292 Riverside Elsinore Trough between Willard and Murrieta Creek. Lake Elsinore. Comment
  UC32013  Gnaphalium palustre H. M. Hall 1901-1-1 2666 Riverside San Jacinto Mountains Southern California, San Jacinto Mountains Comment
  UCR241400  Gnaphalium palustre T. B. Salvato, Matt Malle, Tom Sullivan 2013-3-27 7453 Riverside Perris-Aguanga Basin, Menifee, vacant lot north of Newcomb Substation, at southwest corner of Lazy Creek Road and Murrieta Road 432 Comment
  UCR96861  Gnaphalium palustre Scott D. White 1993-4-30 1317 Riverside San Jacinto Valley, Near intersection of Warren Rd. and Stetson Ave. 458 Comment
  UCR1195  Gnaphalium stramineum Martha McCarthy 1960-4-24 s.n. Riverside Santa Ana Mtns, 20 ft from north side of Tenaja Rd., 11 mi from the junction with Washington Ave, Murrieta [vicinity of Squaw Mtn.] 701 Comment
  UCR193886  Gnaphalium stramineum A. C. Sanders, Mitch Provance 2008-7-11 35801 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
  UCR212971  Gnaphalium stramineum Justin M. Wood, Brandy N. Wood 2009-7-4 1041 Riverside San Bernardino Valley, Riverside Flood Control Basin, southwest corner of Patton Road and Wineville Road, immediately south of San Bernardino County Line 256 Comment
  UC10947  Guillenia lasiophylla H. M. Hall 1897-3-20 405 Riverside Gavilan Comment
  UCR244433  Guillenia lasiophylla Jim Andre 2012-4-16 20928 Riverside Mojave/Sonoran Desert Transition, Joshua Tree National Park; along Cottonwood Springs Rd, 2.4 mi. north of Cottonwood Visitor's Center 956 Comment
  UC63369  Gutierrezia californica E. A. Zumbro 1902-10-1 360 Riverside Riverside Comment
  SDSU13560  Gutierrezia sarothrae W. Miller, C. Mosse Riverside Comment
  UCR158948  Haplopappus squarrosus A. C. Sanders, Kelly Volansky 2005-8-31 31600 Riverside Santa Ana Mtns. Region, Santa Rosa Plateau, hills west of headwaters of De Luz Creek, 50 acre parcel on east side Avenida La Cresta south of Sierra Elena Rd., c. 0.5 mi. N of Tenaja Rd. 701 Comment
  CAS-BOT-BC231105  Harpagonella palmeri P. A. Munz; I. M. Johnston 1922-5-19 5335 a Riverside 5 miles NE of Murietta 457 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
  UCR139181  Harpagonella palmeri 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
  RSA0066619  Harpagonella palmeri D. E. Bramlet 1995-4-25 2394 Riverside Shipley Reserve/SE corner of Lake Skinner Co. Park. Site is within and beside the Equestrian trail, S of the Tucalota Hills & approx. 702 m SE of the park entrance rd. and 610 m N of East Benton Road. The locality is just SW of knoll 1800 ft. 524 Comment
  UCR175066  Hedypnois cretica Teresa Nieto 2005-4-24 13 Riverside Peninsular Range, Wildomar, Menifee Hills, south of Bundy Canyon Rd. c. 1 mile from Harvest Way East, north of Felswood Rd. 579 Comment
  SEINET13387099 Image available Helianthemum scoparium T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-1 8350 Riverside Santa Ana Mountains: unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway (Corona South 7.5' Q.) 424 Comment
  UCR193545  Helianthus californicus A. C. Sanders, Tim Thomas, T. B. Salvato, Mitch Provance 2008-7-1 35663 Riverside Peninsular Range; San Jacinto Mtns., May Valley, along nameless tributary of Herkey Creek NW of Bonita Vista Rd., 3/4 mi. SW of Fleming Ranch 1555 Comment
  UCR145972  Helianthus gracilentus June Latting 1977-11-6 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Oasis de Los Osos, Snow Creek 488 Comment
  UCR241845  Heliotropium curassavicum A. C. Sanders 2013-4-17 40805 Riverside Peninsular Range; Eastern Foot of Gavilan Hills, Hwy 74 between Lake Elsinore and Meadowbrook, 0.1 km NE of Wasson Canyon Rd. intersection 499 Comment
  RSA289838  Heliotropium curassavicum var. oculatum B. A. Prigge 1980-9-17 4076 Riverside Coachella Valley Stormwater Channel: 1.5 miles N of Coachella where Dillon Road crosses channel. -12 Comment
  RSA725969  Hemizonia fasciculata Mitch Provance 2005-5-27 4605 Riverside San Bernardino Valley: Riverside, Sycamore Canyon, just E of the corner of Canyon Crest Drive and Via Vista. 381 Comment
  UCR58493  Hemizonia kelloggii Ed LaRue 1989-6-11 s.n. Riverside Peninsular Range, W side of Lakeview Mtns., c. 1 mi SE of town of Nuevo 640 Comment
  RSA713782  Hemizonia mohavensis A. C. Sanders, S. D. Boyd, J. S. Ross, Mitch Provance 1998-10-25 22271 Riverside Mt. Edna Road, ca. 0.2 mi. west of Hwy 243. 1122 Comment
  UCR139188  Hemizonia paniculata Virginia Moran 2003-5-17 s.n. Riverside Johnson Ranch (managed by Center for Natural Lands Management), vicinity of Skunk Hollow and Santa Gertrudis Creek, 'knoll 1' on northern edge of first baseline transects established by CNLM 422 Comment
  UCR163985  Hemizonia paniculata John F. Green 2005-11-2 s.n. Riverside Peninsular Range, Southern Santa Ana Mtns., Santa Rosa Plateau, La Cresta area, Los Alamos Canyon 1.5 mi. SW of Los Alamos Ranch, just outside Cleveland Nat. Forest boundary 564 Comment
  UCR199947  Hemizonia paniculata Scott D. White, Justin Wood 2008-5-27 12036 Riverside Peninsular Range; Perris-Aguanga Basin, I-215 freeway, between Clinton Keith and Alamos Rds. 457 Comment
  UCR235055  Hemizonia paniculata A. C. Sanders, John F. Green 2012-5-27 40201 Riverside Peninsular Range; Perris-Aguanga Basin Region, powerline route between housing tracts, west of Goetz Rd and east of San Jacinto River, S of Ethanac Rd. 448 Comment
  CLARK-A1528-247  Hemizonia paniculata subsp. paniculata R. P. Sunderman 1968-5-6 2 Riverside Riverside 365 Comment
  CLARK-A1528-1923  Hemizonia pungens John C. Roos 1952-5-14 5670 Riverside San Jacinto River 426 Comment
  CLARK-A1528-1925  Hemizonia pungens John C. Roos 1965-6-21 Riverside San Jacinto Comment
  RSA550496  Hemizonia pungens subsp. laevis D. E. Bramlet 1991-6-1 2186 Riverside The population is located at the southeast corner of the intersection of Sanderson Ave. and Ramona Blvd., in the San Jacinto Valley. The site is some 61 m. south of Ramona Blvd. and in a ditch on the east shoulder of Sanderson Ave. 139 Comment
  RSA691952  Hemizonia pungens subsp. laevis Scott D. White, Michael Honer 2003-4-9 8966 Riverside Hemet Area: Northeast corner of Devonshire Ave. and Warren Road, immediately southwest of 'Tres Cerritos.' Former chicken farm. 473 Comment
  UCR260132  Hemizonia pungens subsp. laevis A. C. Sanders 2015-2-19 41248 Riverside San Jacinto Valley, 53 acre parcel c. 370 m south of Ramona Expressway and 1 km east of Warren Rd., north of Record Rd. 442 Comment
  UCR266367  Hemizonia pungens subsp. laevis D. E. Bramlet 2005-5-16 3846 Riverside Perris-Aguanga Basin Region, San Jacinto Valley, canal right-of-way, east of Sanderson Ave. and south of Ramona Expressway 457 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
  RSA377048  Hesperocallis undulata M. B. Dunkle 1935-3-17 4395 Riverside Desert Center. 610 Comment
  RSA764160  Hesperocallis undulata Linda M. Prince 2009-4-18 520 Riverside Joshua Tree National Park. Turkey Wash 549 Comment
  UCR214566  Hesperocallis undulata A. C. Sanders 2010-3-15 37406 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
  RSA359882  Hesperocnide tenella Steve D. Boyd 1986-4-2 1598 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  SD212657  Hesperolinon micranthum A. C. Sanders 2006-5-19 32389 Riverside Hills between Murrieta and Menifee Valley, West of I-215, South of Bundy Canyon/Scott Road and North of Clinton Keith Road 518 Comment
  RSA701644  Heteromeles arbutifolia Keith E. Hoffmaster 1933-12-18 s.n. Riverside Santa Ana Mountains Comment
Read comments
May 7 2008
  SD186321  Heteromeles arbutifolia Andy C. Sanders 2004-6-20 28211 Riverside Peninsular Range: Temescal Canyon, Serrando Highlands project, between Glen Ivy Hot Springs and Arcilla, NE side of the i-15 Fwy, south of Clay Canyon Rd. 305 Comment
  PASA1743  Heterotheca grandiflora Mary Hall 1939-5-27 Riverside San Jacinto river Comment
  UCR151066  Heterotheca grandiflora Scott D. White 1998-6-17 6747 Riverside Peninsular Ranges; Gavilan Hills, along Gavilan Rd. or Santa Rosa Mine Rd.; c. 7 mi survey route from Gavilan/ Cajalco Rd. junction. south and east to Santa Rosa Mine/ Post Rd. junction 671 Comment
  POM12887  Heuchera hirsutissima P. A. Munz 1922-7-7 6044 Riverside Summit of San Jacinto Peak. 3287 Comment
  SD114911  Heuchera rubescens Fred T. Sproul 1977-8-14 190 Riverside Along road to Santa Rosa Peak. Near its turn toward the south to the summit Comment
  JOTR31944  Hibiscus denudatus La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2182 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky drainages feeding into southwest Pinkham Wash Comment
  POM307339  Hibiscus denudatus Henry J. Ramsey, Henry J. Ramsey 1939-11-28 2200 Riverside Indio-(20 mi. east) Comment
  UCR72176  Hibiscus denudatus Theo Glenn 1991-5-15 91- 38 Riverside Sonoran (Colorado) Desert, Little Maria Mountains, NW of Blythe 351 Comment
  CLARK-A1528-4680  Hilaria rigida John C. Roos 1947-3-1 3298 Riverside Coachella Valley Comment
  RSA0117898  Hilaria rigida Sarah J. J. De Groot, Duncan S. Bell, LeRoy Gross 2016-2-17 7607 Riverside Santa Rosa Mountains: Slide off east side of Martinez Mountain, north of Toro Canyon, south of La Quinta, southwest of Thermal and Coachella. 110 Comment
  SACT001282  Hilaria rigida Marcus Jones 1929-9-16 Riverside Comment
  RSA502589  Hirschfeldia incana Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-11 3725 Riverside Vail Lake area, wetlands of Wilson Creek, east of the lake. 457 Comment
  RSA0087458  Hoffmannseggia glauca Sarah J. De Groot, Amy Rouillard 2015-9-15 7570 Riverside Ford Dry Lake, Chuckwalla Valley, north of I-10. 107 Comment
  RSA4929  Hoffmannseggia glauca C. B. Wolf 1932-4-28 s.n. Riverside Chuckwalla Valley, 20 miles west of Blythe on Mecca Road 122 Comment
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Mar 26 2011
  RSA86996  Hoffmannseggia glauca Margaret Stason 1932-03 249 Riverside Roadside near Blythe, eastern Riverside County. Comment
  UCR17645  Hoffmannseggia glauca Hap Ritter, Paul Mack 1976-10-19 s.n. Riverside Sonoran (Colorado) Desert, Ford Dry Lake, between Desert Center and Blythe 110 Comment
  CAS-BOT-BC207552  Hoffmannseggia microphylla Roxana S. Ferris; R. Bacigalupi 1932-4-30 8243 Riverside in canyon between Shaver's Well and Mecca Comment
  CAS-BOT-BC207560  Hoffmannseggia microphylla R. H. Peebles; H. F. Loomis 1930-4-6 190 Riverside Near Shavers Well Comment
  CAS-BOT-BC207574  Hoffmannseggia microphylla Annie M. Alexander; Louise Kellogg 1941-5-17 2192 Riverside near Dos Palmas Comment
  RSA663906  Hoffmannseggia microphylla C. R. Annable 1995-3-10 2260 Riverside 1.6km S of Lake Cahuilla County Park. Comment
  SBBG3337  Hoffmannseggia microphylla H. and M. Dearing 1940-1-1 4072 Riverside Painted Cyn near Mecca Comment
  RSA0036702  Hordeum R. F. Thorne 1973-5-23 43873 Riverside SANTA ROSA PLATEAU: Mesa de Colorado 610 Comment
  UCR104646  Hordeum intercedens D. E. Bramlet 1996-4-22 2459 Riverside Perris-Aguanga Basin region, San Jacinto Wildlife area, Lovell Unit. The site is approximately 198 m east of Davis Rd. and 183 m north of the San Jacinto River. Locality was some 46 m south of the existing access road 432 Comment
  RSA596934  Hordeum marinum subsp. gussoneanum A. C. Sanders, K. D. Jones, D. Malueng 1996-4-20 18042 Riverside San Jacinto River between Nuevo and Lakeview, from 11th to 13th Streets, E side of the river channel., (33 deg 49'N, 117 deg 09'W 433 Comment
  UCR201424  Horkelia clevelandii Scott D. White, Justin M. Wood 2008-6-17 12155 Riverside San Jacinto Mountains, south of Hwy 79 near Keen Camp Summit 1463 Comment
  UCR201643  Hulsea vestita subsp. callicarpha Scott D. White, Justin M. Wood 2008-6-16 12150 Riverside San Jacinto Mountains, meadow at Quinn Flat 1378 Comment
  UC1400356  Hydrocotyle ranunculoides R. F. Thorne and E. Lathrop 1969-6-6 39347 Riverside Santa Rosa Plateau, Rancho California 609 Comment
  UCR17007  Hydrocotyle umbellata O. F. Clarke 1975-7-21 s.n. Riverside Riverside, UCR Botanical Garden beside a pond 400 Comment
  CLARK-A1528-1959  Hymenoclea salsola John C. Roos 1947-2-15 3246 Riverside Eagle Mountains Comment
  RSA278971  Hymenoclea salsola B. A. Prigge 1978-3-23 2420 Riverside NW Colorado desert, 1.2 miles E of Sky Valley near Dillon X Skyridge Roads 335 Comment
  RSA663893  Hymenoclea salsola C. R. Annable 1995-3-10 2263 Riverside 1.6km S of Lake Cahuilla County Park. Comment
  RSA0009845  Hymenoclea salsola Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  JOTR28946  Hymenoclea salsola var. salsola La Doux, Tasha 2005-3-30 1182 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  RSA180321  Hypochaeris glabra E. W. Lathrop 1965-4-25 5672 Riverside 4 miles southwest of Murrieta on the De Luz Road. Comment
  UCR114306  Hypochaeris glabra Julie A. Greene 1993-4-30 1264 Riverside Perris-Aguanga Basin region, San Jacinto Valley, San Jacinto Wildlife Area. north of San Jacinto River drainage. 433 Comment
  RSA192190  Hypochaeris radicata E. W. Lathrop 1960-6-6 4827 Riverside 14 miles W. of Murrieta. Comment
  CAS-BOT-BC219757  Hyptis emoryi Mrs. Robert Campbell 1921-11-26 14 Riverside Palm Canyon Comment
  CAS-BOT-BC219773  Hyptis emoryi Roxana S. Ferris; Ruth P. Rossbach 1938-5-16 9570 Riverside Mecca Hills 2 miles up Painted Canyon Comment
  CAS-BOT-BC219775  Hyptis emoryi L. S. Rose 1946-12-27 46308 Riverside Dead Indian Creek Wash, Palms-to-Pines Highway, 7 miles southwest of Indian Wells 274 Comment
  JEPS63226  Hyptis emoryi W. L. Jepson 1912-10-30 5250 Riverside Black Point Colorado River, , Black Point (Riverside Mts.) 88 Comment
  UC25261  Hyptis emoryi S. B. Parish Apr 4 1896-Apr 13 1896 4137 Riverside desert base San Jacinto Mt. (Palm Springs (Agua Caliente)); desert base of San Jacinto Mt., Palm Springs (Agua Caliente) 152 Comment
  UCR123825  Hyptis emoryi Steven R. Hill 2001-5-3 33650 Riverside San Jacinto Mtns., NE-facing slopes of Mt. San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, c. 1.0-1.5 mi SW of Calif. Hwy 111, Palm Springs.Boundary of Palm Springs Aerial Tramway property, at entrance gate 610 Comment
  UCR226793  Hyptis emoryi Jim Andre 2011-2-9 15900 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
  UCR166827  Ipomoea purpurea Michael D. Wilcox 2005-11-19 s.n. Riverside San Bernardino Valley, Mira Loma, 13 acre fallow field at the south east junction of Hamner Ave. and Galena St., at the San Bernardino County line approximately 1.6 miles north of Swan Lake Trailer park 229 Comment
  RSA22388  Isocoma acradenia var. eremophila L. S. Rose 1936-12-18 36788 Riverside Desert wash, Palm Springs. Comment
  RSA192257  Isoetes howellii E. W. Lathrop 1966-5-1 6253 Riverside 3 miles W of Murrieta Comment
  CSUSB720  Isomeris arborea Daniel Sall 1970-4-25 Riverside Palm Springs, about 150 yards from start of trail in Tahquitz Canyon wash 304 Comment
  UCR4003  Isomeris arborea Val Chase 1965-2-22 4 a Riverside Western Colorado Desert, 6 mi west of Desert Hot Springs on the road W toward Whitewater 518 Comment
  UCR96804  Isomeris arborea A. C. Sanders, O. F. Clarke & H. Forster 1997-3-2 19769 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
  UCR33658  Isomeris arborea var. arborea Sears 1978-3-18 950 Riverside Sonoran (Colorado) Desert, foothills of the Orocopia Mtns, 10 mi NE of Durmid on Railroad road 305 Comment
  SEINET4691495  Iva axillaris A. C. Sanders 2012-1 39990 Riverside Peninsular Range; Elsinore Valley; city of lake Elsinore, 0.4 km SW (210 degrees) of Intersection of Riverside Dr. and Collier Ave. 385 Comment
  UCR266483  Iva axillaris subsp. robustior Mitch Provance, Eric Kline 2015-3-26 315- 46 Riverside Temecula/Murrieta Region, Murrieta/Menifee boundary, Warm Springs Creek, SE corner of Clinton Keith Rd. and Jeanette Dr. 392 Comment
  UC2062455  Ivesia callida Barbara Ertter with Ken Berg, Roxanne Bittman, and Tim Krantz 1987-9-6 7433 Riverside S side Tahquitz Peak, San Jacinto Mountains. Comment
  UCR261370  Juglans A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-6 41571 Riverside Peninsular Range, Temescal Valley, open parcel on west side of Horsethief Canyon Rd. and south of DePalma Rd. 387 Comment
  SD229194  Juglans californica Dick Schwenkmeyer 2012-10-16 843 Riverside Approx. 2 mi. south of U.S. Highway 10 at Cabazon. 505 Comment
  SD237479  Juglans hindsii A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37147 Riverside Peninsular Range: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River (Riverside West 7.5'Q) 238 Comment
  SD240765  Juglans hindsii A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37145 Riverside Peninsular Tange: Box Springs Mountains Foothills, Riverside, dry arroyo on UCR campus SE of student health center and just north of North Campus Drive (Riverside East 7.5'Q) 320 Comment
  SD241064  Juglans hindsii R. E. Riefner Jr. 2009-8-15 09 174 Riverside Temecula, Temecula Canyon, Santa Margarita River, ca 1.5 mile W of I-15 Fwy. (Tremecula 7.5'Q) 298 Comment
  SEINET10533290  Juncus acutus var. sphaerocarpus David B. Dunn, Howard Brown 1947-3-16 Dunn 2866 Riverside Pushawalla canyon, indio hills. In both wash and wash margin Comment
  IRVC2015  Juncus balticus R. H. Whittaker, W. A. Niering 1963-6-6 SJ 248 Riverside 5509, Bee Canyon. San Jacinto Mountains 610 Comment
  UCR149983  Juncus bufonius Scott D. White, Angelia Carey 2004-5-7 10333 Riverside San Jacinto Mountains, Indian Creek and adjacent foothills 610 Comment
  UCR158140  Juncus bufonius A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30091 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
  UCR167845  Juncus bufonius T. B. Salvato, Melissa Clemons 2005-6-2 1348 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
  RSA692228  Juncus effusus subsp. austrocalifornicus Scott D. White 2003-10-9 9815 Riverside Pine Cove. Lily Creek just north of crossing at Hwy 243. 1738 Comment
  RSA740716  Juncus macrophyllus Scott D. White, Justin M. Wood 2008-7-8 12381 Riverside Hurkey Creek Watershed- Bonita Vista Rd, ca 1/2 miles E and W of Hurkey Creek crossing. 1512 Comment
  SBBG57289  Juncus macrophyllus R. Hoffmann 1929-9-7 Riverside San Jacinto Mtns 1828 Comment
  RSA192263  Juncus mexicanus E. W. Lathrop 1960-6-10 5004 Riverside 8 miles west of Murrieta. Comment
  RSA69630  Juncus mexicanus F. W. Peirson 1924-6-1 4676 Riverside River lands along Santa Ana River. 152 Comment
  UCR177110  Juncus oxymeris Robert Noll 1998-7-13 s.n. Riverside San Jacinto Mtns., Mellor Ranch Road Comment
  SEINET10755901  Juncus rugulosus J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12832 Riverside Near White Water, west of Joshua Tree National Park; north of I-10 (just west ofjunction with CA 62) on Whitewater cut-off, then a few kilometers on Whitewater Canyon Road to where it comes closest to the river. Comment
  SD187309  Juncus textilis Scott D. White, Angelia Carey 2004-5-7 10349 Riverside San Jacinto Mountain foorhills: Indian Creek and adjacent foothills. 548 Comment
  UCR156273  Juncus tiehmii T. B. Salvato, A. C. Sanders 2005-5-17 897 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
  SD187311  Juncus xiphioides Scott D. White, Angelia Carey 2004-5-7 10330 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent foothills. 548 Comment
  JEPS9204  Justicia californica Marjorie D. Clary 1932-12-15 1732 Riverside Bajada 2 mi. w. of Coral Reef Ranch; Colorado Desert, Santa Rosa Mts., Coachella Valley 91 Comment
  POM118330  Justicia californica Marcus E. Jones 1924-2-26 s.n. Riverside Shaver s Well. Comment
  RSA171105  Justicia californica R. F. Thorne, Robert Rutherford 1964-4-12 33657 Riverside 1 mile W of turnoff to Cottonwood Wells [Springs]. Larrea desert scrub along Hwy. 60-70. Comment
  RSA398810  Justicia californica Robert Gustafson 1978-3-21 839 Riverside Joshua Tree National Monument, about 4 miles from the junction of the road leading through the park and Hwy 70. 640 Comment
  RSA402298  Justicia californica E. Crow 1929-2-24 173 Riverside Andreas Canyon, S of Palm Springs, Colorado Desert. Comment
  SEINET10437711 Image available Justicia californica J. R. Haller 1960-4-2 1552 Riverside North side of US Highway 60-70, 1.7 miles west of the south entrance road to Joshua Tree National Monument, about 22 miles east of Indio 488 Comment
  UC1302250  Justicia californica Robert Rutherford 1964-4-12 33657 Riverside ca. 1 mi. w. of turnoff to Cottonwood Wells (along Hwy. 60-70) Comment
  UC672446  Justicia californica H. L. Mason 1927-3-11 4251 Riverside Palm Springs Colorado Desert, Palm Springs Comment
  JOTR01220  Justicia californica Cole, James E. 1941-3-30 455 Riverside Joshua Tree National Park. COTTONWOOD SRRING WASH 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
  JEPS8733  Keckiella antirrhinoides I. W. Clokey and E. G. Anderson 1935-4-16 6885 Riverside e of Hemet (hillside along San Jacinto River) 600 Comment
  RSA528069  Keckiella antirrhinoides Scott D. White 1991-4-10 91 -59 Riverside Diamond Valley area, ca. 1/2 mi. E of Mica Butte, and S of Cactus Valley Road. 610 Comment
  RSA601085  Keckiella antirrhinoides A. C. Sanders, J. Goetzen 1996-5-1 18123 Riverside San Bernardino Mtns.: Morongo Indian Reservation, along dirt road in Hathaway Crk., N of Banning. [UTM 10 km cell: NH-1E, 5N. Banning.] 792 Comment
  SD187479  Keckiella antirrhinoides Scott D. White, Angelia Carey 2004-4-16 10158 Riverside San Jacinto Mountain Foothills, Indian Creek 548 Comment
  SD234523  Keckiella antirrhinoides Wayne Law, Jun Hu 2000-5-16 13 Riverside Peninsular Ranges; Santa Ana Mtns.: Eastern edge of Cleveland National Forest, above Temescal Valley in Indian Canyon, 11.8 mi S of Corona. 395 Comment
  UC1537425  Keckiella antirrhinoides Gordon H. True Jr. 1935-3-13 97 Riverside Mockingbird Canyon 457 Comment
  CAS-BOT-BC236706  Keckiella antirrhinoides subsp. antirrhinoides T. Craig 1927-4-23 206 Riverside Glen Ivy Comment
  JOTR30644  Keckiella antirrhinoides var. microphylla La Doux, Tasha, Erin Babich 2008-4-21 1805 Riverside Joshua Tree National Park. Stop 4-Little San Bernardino Mountains, Upper East Deception Canyon 1233 Comment
  RSA400445  Keckiella cordifolia Gale Sphon 1955-6-23 s.n. Riverside Horsethief Canyon, Elsinore Mountains. Comment
  POM21136  Keckiella rothrockii subsp. jacintensis Fordyce Griffiths Jr. 1908-07 s.n. Riverside Tahquitz Valley 2439 Comment
  SD178242  Keckiella ternata T. B. Salvato, John F. Green 2004-5-27 580 Riverside San Bernardino Mountains; head of Banning Canyon close to the San Bernardino County line, 0.5 mile southeast of Oak Glen Conservation Camp. 1402 Comment
  UCR133703  Keckiella ternata N. C. Cooper 1944-7-15 1581 Riverside Peninsular Range; San Jacinto/Santa Rosa Mtns., Palms to Pines Highway 1372 Comment
  SEINET959100  Kelloggia galioides G. K. Helmkamp, E. A. Helmkamp 2005-1 9742 Riverside Northern Sierra Nevada Foothills: 20 mi. WSW of Lake Tahoe; Ice House Road, N of CA Highway 50 and 1.5 mi S of junction with Ice House Reservoir (Kyburz 7.5Q). 1637 Comment
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Nov 8 2013
  SEINET269162  Kochia scoparia Chet McGaugh 1996-4-26 Riverside Helmet .25 miles west of State Street between Esplande and Cottonwood. Comment
  RSA783584  Koeberlinia spinosa var. tenuispina Michael Wall, Valentin Arvizu 2011-5-24 603 Riverside 6.5 miles north of Desert Center, off Kaiser Rd. ca. 100 meters to the northeast off a small dirt rd. in a shallow wash area near two paloverde trees. 201 Comment
  RSA697696  Koeleria macrantha J. Russell Bruff 1934-6-19 557 Riverside Idyllwild Comment
  SBBG3341  Krameria bicolor H. and M. Dearing 1946-6-8 4343 Riverside 2 mi N of Palm Springs Comment
  SBBG68478  Krameria bicolor Anstruther Davidson -Apr-1893 Riverside Palm Springs Comment
  UCD107079  Krameria bicolor Richard Bates 1949-4-26 s.n. Riverside Cathedral City. Comment
  CAS-BOT-BC168506  Krameria erecta Mitch Provance; Kerry Knudsen; Petra Wester 2004-5-8 9002 Riverside Santa Rosa Mountains: Along Hwy 74 on the Santa Rosa Mountain Grade, ca. 0.8-0.5 mi NE of Black Hills 854 Comment
  SEINET189444  Krameria erecta Annie M. Alexander, L Kellogg 1941-5-11 2150 Riverside Eagle Mountains Cottonwood Spring 884 Comment
  CAS-BOT-BC183274  Krameria grayi James R. Shevock 1986-3-23 11356 Riverside Adjacent to Interstate 10 along Eagle Mountain Road, 3 miles west of Desert Center 350 Comment
  UC64185  Krameria grayi H. M. Hall May 17 1901-Jun 1 1901 1877 Riverside near Palm Canyon; near Palm Canyon 914 Comment
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Apr 11 2011
  UCR138562  Krameria grayi Steve Boyd, Orlando Mistretta 1986-3-13 1477 Riverside Sonoran (Colorado) Desert, West side Palen Mtns: NE of Desert center; first large canyon at NW tip of western segment of range Comment
  SEINET3151231  Krameria parvifolia G. B. Grant 1906-1 658 Riverside Colorado desert at Palm Springs Comment
  RSA522307  Lactuca serriola Steve Boyd 1989-7-9 3777 Riverside City of Riverside, 4863 Rubidoux Ave. Comment
  UCR21851  Lactuca serriola Steve Boyd 1980-7-16 s.n. Riverside Perris Basin, Motte Reserve, 2.5 miles NW of Perris, west edge of the reserve c. 1/4 mile north of the Motte's house 520 Comment
  RSA704002  Lamarckia aurea Daphne K. Christopher, H. Stevens, Z. Princip 2003-4-9 125 Riverside Near Hermano Road, off Hwy. 15, Indian Truck Trail exit. On right spur of primary dirt road. 550 Comment
  UCR167063  Lamarckia aurea Scott D. White 2005-3-29 10838 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
  RSA336168  Lamarckia aurea R. F. Thorne, M. Z. Thorne, Walter Wisura 1978-5-21 51997 Riverside Santa Rosa Plateau: Mesa de Colorado 610 Comment
  UCR175181  Langloisia matthewsii Jim Andre 2006-4-26 6758 Riverside South Mojave Desert, Joshua Tree National Park: Long Canyon, c. 2.3 mi south of the NE corner (boundary) of the park 1056 Comment
  SEINET2444114  Langloisia setosissima C. Davidson 2010-4-2 11688 Riverside 3 mi S of Hwy 111 in Palm Desert on Hwy 74 (Pines Palms Hwy). 365 Comment
  RSA795940  Langloisia setosissima subsp. setosissima Duncan S. Bell 2009-4-18 256 Riverside Arica Mountains: southeast side of range, approximately 0.5 air mile southwest of Priests Well. 311 Comment
  OBI75821  Larrea divaricata P. A. Holden 1969-4-23 777 Riverside At foot of Morongo Pass just W of hwy 62 about 8 mi W of Desert Hot Springs Comment
  CAS-BOT-BC166020  Larrea tridentata E. A. McGregor 1917-3-19 713 Riverside Indio Sands - Colorado Desert Comment
  CLARK-A1656-877  Larrea tridentata Jim Cornett 1977-6-25 Riverside Desert Hot Springs 411 Comment
  SBBG67805  Larrea tridentata M. N. Ackley -Feb-1926 1146 Riverside Mecca -60 Comment
  CAS-BOT-BC338918  Lasthenia californica Richard W. Holm 1955-4-24 55 1 A Riverside Valley 2 miles south of Hurkey Creek Camp Ground, Route 74, SE of Hemet Comment
  CAS-BOT-BC338921  Lasthenia californica H. M. Hall 1902-4-22 2941 Riverside Rialto. Vicinity of Riverside Comment
  SD236205  Lasthenia californica John F. Green 2006-5-3 Riverside Peninsular Ranges: French Valley, unincorporated Riverside County, along Briggs Road between Porth Road and Benton Road 409 Comment
  RSA33555  Lasthenia coronaria N. C. Cooper 1944-3-25 997 Riverside Cabazon. 457 Comment
  UCR280722  Lasthenia glabrata subsp. coulteri Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-4-10 417- 19 Riverside Elsinore Trough, Baker St., 0.05-0.15 miles SE of Pierce St. [NW edge of city of Lake Elsinore, near Terra Cotta] 384 Comment
  RSA691954  Lasthenia gracilis Scott D. White, Michael Honer 2003-4-9 8967 Riverside Hemet Area: Northeast corner of Devonshire Ave. and Warren Road, immediately southwest of 'Tres Cerritos.' Former chicken farm. 473 Comment
  UC218251  Lasthenia gracilis P. A. Munz and I. M. Johnston 1922-3-20 5452 Riverside Hemet Valley San Jacinto Mts., Hemet Valley 1371 Comment
  UCD133817  Lasthenia gracilis R. N. Raynor 1933-3-31 s.n. Riverside Moreno Valley. Comment
  UCR266324  Lasthenia gracilis D. E. Bramlet 1991-4-29 2084 Riverside Perris-Aguanga Basin Region; San Jacinto Valley, 6.5 km west of Hemet & c. 0.4 km west of intersection of Florida Ave./Hwy 74 & Warren Road 457 Comment
  RSA0035713  Lathyrus vestitus Tracy Tennant, Jeffrey Ross 1998-5-21 MOR- 265 Riverside Morongo Indian Reservation, Hathaway Creek Canyon, NW of Cabazon 976 Comment
  UCR193873  Lathyrus vestitus A. C. Sanders, Mitch Provance 2008-7-11 35818 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
  SD125949  Lathyrus vestitus var. alefeldii B. Pitzer, E. Misquez 1988-2-28 616 Riverside Walker Basin, SW of Murrieta, Avenida del Oro, 2 miles south of Rancho California Road, hilly area north of road 427 Comment
  CAS-BOT-BC379662  Layia platyglossa A. C. Sanders; T. B. Salvato 2011-3-29 38874 Riverside Peninsular Range; Perris-Aguanga Basin Region: between Sun City Perris, along powerline coordinator 0.45 east of Goetz Ra. and 0.07 lm east Wheat St. 449 Comment
  RSA585518  Layia platyglossa D. L. Banks, S. D. Boyd 1995-5-9 0380 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mountain, Dorland Mountain area. 701 Comment
  UCR3424  Layia platyglossa John Kitasako 1964-5-10 45268 Riverside Peninsular Range; San Jacinto Mtns., Hemet Valley, 6 mi SE of Hemet Reservoir 1372 Comment
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Jan 7 2013
  RSA212924  Layia platyglossa subsp. platyglossa L. B. Ziegler 1969-5-15 s.n. Riverside Wet depression in lower hills E of Pine Meadow, Hemet Valley, San Jacinto Mts. Comment
  UCD63582  Leersia oryzoides A. C. Sanders; O. F. Clarke, and C. N. P. S. field trip 1991-10-5 11740 Riverside Riverside, Fairmont Park; along Spring Brook between Lake Evans and the Santa Ana River, ca. 50-100 m. below the lake. Comment
  RSA674814  Lemna Scott D. White 2001-6-29 8626 -A Riverside Meniffe Valley: About 1.4 air mi SW of the I-215/ Newport Rd. Interchange, northwest of the intersection of HollandRd. and Bradley Rd. 439 Comment
  POM14284  Lemna gibba Philip A. Munz 1922-4-30 5111 Riverside Lancaster Valley, south of Hemet. Comment
  RSA633881  Lemna gibba Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38150 Riverside San Jacinto Mountains: San Bernardino National Forest. Lake Fulmor. 1615 Comment
  CLARK-A1528-5692  Lepechinia cardiophylla John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1066 Comment
  UC1929735  Lepidium dictyotum Scott D. White, Justin Wood 2008-4-3 11798 Riverside Perris / Elsinore Basin: Foothills of Gavilan Hills at Temescal Wash, near Olsen Canyon. Morgan Property, Alberhill area. Comment
  POM93707  Lepidium dictyotum Marcus E. Jones 1882-4-24 s.n. Riverside Temecula Comment
  UCR79366  Lepidium dictyotum var. dictyotum Steve Boyd, T. S. Ross 1992-4-1 6773 Riverside Peninsular Range, Temecal Canyon, terrace escarpments betwee Indian and Horsethief Washes along DePalma Road. 412 Comment
  RSA4955  Lepidium fremontii C. B. Wolf 3043 Riverside Colorado Desert, 3/4 miles W of Utopia on the mecca Blythe raod. 152 Comment
  JOTR31099  Lepidium fremontii var. fremontii La Doux, Tasha, T. Herskovits, B. Truesdell, M. Wheeler 2010-5-6 2357 Riverside Joshua Tree National Park. Little San Bernardino Mountains, north end of Lost Horse Hills; Side canyon off main wash between Ryan Mtn and Lost Horse Hills, with steep rocky slopes (Stop 4) Comment
  CAS-BOT-BC89583  Lepidium lasiocarpum D. A. Johansen; J. A. Ewan 1932-4-10 7056 Riverside Along diversion canal at mouth of Tahquitz Canyon. 213 Comment
  RSA697451  Lepidium lasiocarpum J. R. Bruff 1927-3-12 34 Riverside Fingal Comment
  CAS-BOT-BC89669  Lepidium lasiocarpum subsp. lasiocarpum Alice Eastwood 1913-4-30 3052 Riverside Palm Springs. Comment
  RSA162734  Lepidium virginicum J. Olmstead 1959-6-23 658 Riverside Desert Sun School near Idyllwild. 1646 Comment
  RSA34595  Lepidium virginicum N. C. Cooper 1944-6-16 1390 Riverside San Jacinto Mountains, west side. 1372 Comment
  RSA543754  Lepidium virginicum var. robinsonii Steve Boyd, Timothy S. Ross, Mike Hammit 1991-5-2 6074 Riverside Vail Lake region, SW and W flanks of Billy Goat Mountain 3 miles N Highway 79, 1 mile W of Highway 371, N of Aguanga. 600 Comment
  SEINET255559  Lepidium virginicum var. robinsonii Mitch Provance 2004-5-1 7603 Riverside Granitic Knolls of Riverside: Riverside, W side of Versity Hill (Coyote Hill), S side of the UCR campus 396 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
  UCR166805  Lepidium virginicum var. robinsonii R. E. Riefner Jr. 2005-4-1 05- 196 Riverside Hemet, hills SW (c. 0.5 mi) off intersection of California Avenue and Stetson Avenue 497 Comment
  JEPS30687  Lepidospartum squamatum Peter H. Raven 1961-10-8 16841 Riverside Whitewater Wash along Snow Creek Road, near State Highway 111 350 Comment
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Jun 9 2012
  RSA659770  Leptochloa fusca subsp. uninervia J. C. Roos, L. Roos 1951-10-24 5332 Riverside Flats between Arlington and Pedley 229 Comment
  RSA723303  Leptochloa fusca subsp. uninervia P. M. Peterson, D. R. Peterson 1989-9-22 8123 Riverside San Jacinto, 8.8 km W. of State Hwy 79 on Ramona Expressway towards Lakeview 500 Comment
  SEINET3412102 Image available Leptochloa fusca subsp. uninervia Unknown 1987-8-19 8054 Riverside 2 km south of Ripley. Along an irrigation ditch at edge of a cotton field. Forming large and conpicuous clumps. Locally common 15 Comment
  UCD64077  Leptochloa fusca subsp. uninervia Paul Popenoe 1920-12-11 Riverside Thermal. Comment
  SEINET10588834  Leptochloa fusca subsp. uninervia Paul M. Peterson 1988-8-24 Peterson 4989 Riverside Batista Canyon Wash, entering San Jacinto River (Wash), just N of Cedar and Mountain, NE end of Hemet. Sandy wash. Comment
  UC2031379  Leptochloa mucronata Duncan S. Bell with John Anderson, Kim Clark, Debbie George, Jim George, and Ed Howland 2013-9-28 6021 Riverside Chuckawalla Valley; approx. 22.25 air miles W of Blythe, S side of Ford Dry Lake, about 0.5 air miles SE of Hopkins Well. Comment
  SDSU3131  Leptodactylon californicum Stan Mather 1938-5-13 Riverside Lake Elsinore. Comment
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Jul 8 2009
  UC1123902  Leptodactylon californicum R. St. John 1929-3-12 13 Riverside Potrero Creek; Elsinore Quad., Potrero Creek Comment
  RSA668921  Leptodactylon pungens Heidi West 2000-7-18 s.n. Riverside On the south-facing side of a large rock outcrop/ batholyth facing hidden lake in Mount San Jacinto State Park and Wilderness., The outcrop is 0.5 air miles E-NE of Divide Peak, it occurs primarily south of Long Valley Creek and is immediately north & upslope of Hidden Lake. 2659 Comment
  RSA0099593  Leptosiphon floribundus subsp. hallii Duncan S. Bell 2014-11-14 7704 Riverside Santa Rosa Mountains; collecting in the Santa Rosa Mountain Wilderness area; west side of Martinez Mountain; at meeting point of Horsethief Creek and the Cactus Spring Trail. 1055 Comment
  POM65218  Leptosiphon liniflorus George F. Reinhardt 1897-06 11550 Riverside San Jacinto Mts. Comment
  POM128367  Leptosiphon pygmaeus subsp. pygmaeus Thos. Craig 1927-4-23 202 Riverside Glen Ivy. Comment
  UCR22016  Lessingia filaginifolia Steve Boyd 1980-9-16 352 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 625 Comment
  HSC104179  Lessingia glandulifera var. glandulifera A. C. Sanders, T. B. Salvato 2014-7-2 41157 Riverside San Jacinto Mtns.: Forbes Canyon, ~0.5 mi. S of Forbes Ranch along Forbes Ranch Rd. 1555 Comment
  POM15213  Leymus condensatus Mary F. Spencer 1922-6-30 1984 Riverside Brook's Camp - San Jacinto Mountains. 1220 Comment
  CAS-BOT-BC451636  Lilaea scilloides Robert F. Thorne; E. Lathrop; O. Clark; S. Carlquist 1968-4-18 37422 Riverside Santa Rosa Plateau: Rancho California 609 Comment
  RSA357754  Lilaea scilloides Robert F. Thorne 1973-5-23 43841 Riverside Santa Rosa Plateau: Mesa de Colorado 610 Comment
  RSA592024  Lilaea scilloides E. W. Lathrop 1968-5-15 6881 Riverside 8 miles W of Murrieta; Reedonda Mesa, Santa Rosa Plateau 610 Comment
  RSA68710  Lilium parryi Frank W. Peirson 1924-7-27 5003 Riverside South side of Dark Canyon, San Jacinto Mountains. 2499 Comment
  JOTR34293  Linanthus bigelovii Andre, Jim 2012-4-11 20702 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
  UC23402  Linanthus bigelovii W. G. Wright 1890-3-10 759 Riverside Colorado Desert Comment
  RSA314667  Linanthus dianthiflorus subsp. dianthiflorus R. F. Thorne, F. R. Fosberg, Sachet, Herbst 1983-4-23 55790 Riverside San Bernardino Mountains: Whitewater River where road crosses river below fish hatchery, ca. 4 miles north of Whitewater Post Office. 640 Comment
  RSA0053904  Linanthus floribundus Tracy Tennant, Mitch Provance 1998-6-16 MOR- 409 Riverside Morongo Indian Reservation, upper Millard Canyon, north of Cabazon 1098 Comment
  UC879946  Linanthus floribundus subsp. glaber P. A. Munz 1922-4-28 5048 Riverside Leach Canyon Santa Ana Mts. 670 Comment
  RSA676060  Linanthus jonesii Scott D. White 2001-4-3 8247 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  RSA761099  Linanthus lemmonii Thomas Stoughton, J. McConnaughy, Andrew Monks, M. Volke 2010-3-31 116 Riverside PCT Trail. W of White Water Canyon. N of jct of I-10 and Rte 111. 740 Comment
  RSA646296  Linanthus liniflorus Orlando Mistretta, Mark Elvin 1995-6-19 1778 Riverside San Jacinto Mountains: Highway 74. 1264 Comment
  RSA741064  Linanthus liniflorus Scott D. White, Justin M. Wood 2008-6-5 12071 Riverside San Jacinto Mountains: Garner Valley: Hwy 74 at Thomas Mountain Rd. - SW corner of junction. 1326 Comment
  UCR42395  Linanthus liniflorus B. A. Carlson 1986-3-9 s.n. Riverside San Bernardino Mtns., Alta Mesa, on top of the mesa just west of Whitewater Canyon in the wind turbine field 701 Comment
  JOTR33946  Linanthus pungens La Doux, Tasha, M. Harding, M. Wheeler, and J. Harding 2010-6-2 2835 Riverside Joshua Tree National Park. Little San Bernardino Mountains, NW of Key's View and Inspiration Peak; bouldery outcrops along ridge line heading toward Juniper Flats Comment
  RSA599415  Linanthus pungens R. E. Riefner, C. Jones 1996-8-28 96 -160 Riverside San Jacinto Mountain, W summit of Devil's Slide Trail Comment
  CLARK-A1045-342  Linaria canadensis var. texana George K. Helmkamp 1978-4-8 Riverside Box Springs Mountains Riverside East 7.5Q' Comment
  CLARK-A1528-1009  Linum lewisii John C. Roos 1947-5-24 3647 Riverside San Jacinto Mountains 1706 Comment
  PASA685  Linum lewisii Sally Ellis 1939-6-22 Riverside Halona, Idyllwild Comment
  RSA0018462  Lithophragma affine A. C. Sanders 1997-4-3 20158 Riverside near north foot of Black Mountain, slopes south of Crown Valley 655 Comment
  UCR227592  Lithophragma bolanderi Duncan S. Bell, Valentin Arvizu 2010-5-24 1099 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 2.8 air mi southeast of junction of Forest Service Road 6S04 and Forest Service Road 6S13 1382 Comment
  UCR266316  Loeflingia squarrosa D. E. Bramlet 1991-4-30 2091 Riverside Peninsular Range, Shipley Reserve, Crown Valley at NW foot of Black Mtn., transect C-3 732 Comment
  UCR87144  Loeflingia squarrosa A. C. Sanders, K. C. Rose, D. Woodard 1995-3-15 16141 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, along Whitewater River wash between Windy Point and Hwy I-10, Coachella Valley 396 Comment
  JOTR31122  Loeseliastrum matthewsii La Doux, Tasha, M. Harding, B. Truesdell, M. Wheeler 2010-5-12 2504 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
  RSA77059  Loeseliastrum schottii F. W. Peirson 1914-04 953 Riverside Whitewater at head of Coachella Valley. Comment
  UCR260861  Loeseliastrum schottii A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41485 Riverside San Gorgonio Pass, 3.15 miles east of Cabazon, north of the San Gorgonio River wash on the alluvial slope east of the water bottling plant and south of I-10 449 Comment
  RSA718570  Loeseliastrum schottii Michael Honer, L. Hulse 2004-4-3 1889 Riverside Nameless canyon appx. 1 mi. W of Pushawalla Cyn., leading up to MWD aqueduct. 488 Comment
  CAS-BOT-BC342107  Logfia arizonica Steve Boyd 1986-5-1 1789 Riverside Southwestern Perris Basin: Hill W of Skunk Hollow Comment
  UCR276654  Logfia depressa Jim Andre 2015-3-6 33548 Riverside Coachella Valley, along Snow Canyon oad, just south of Hwy 111 362 Comment
  SEINET251684 Image available Lolium rigidum Walter Graves 2002-5-15 502 -13 Riverside Riverside : grown at U.C. R. in Agricultural Operations Fields (Riverside East 7.5' Q.) 305 Comment
  RSA552754  Lomatium dasycarpum subsp. dasycarpum Steve Boyd, Timothy S. Ross, Orlando Mistretta 1992-3-31 6740 Riverside San Mateo Canyon Wilderness Area. Morgan Trail from Round Potrero W to junction with Tenaja Trail in N-fork Bear Creek. 670 Comment
  UC21218  Lomatium lucidum W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1931 Riverside Temecula Creek 609 Comment
  POM17410  Lonicera subspicata var. denudata M. L. Kendall 1922-5-2 s.n. Riverside Santa Ana Canyon. Comment
  UCR59530  Lonicera subspicata var. johnstonii Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3616 Riverside Butterfield Valley, Vail Lake area, Kolb Creek drainage, N extension of Woodchuck Road, north of Hwy 79 489 Comment
  CLARK-A1528-481  Lotus argophyllus Charlotte Stocks 1964-6-12 Riverside Whitewater Canyon Comment
  RSA406722  Lotus argophyllus var. argophyllus Anstruther Davidson 1893-4-12 s.n Riverside Palm Springs. Comment
  UC864796  Lotus grandiflorus var. grandiflorus P. A. Munz and I. M. Johnston 1922-5-19 5403 Riverside 1 mi above mouth of Strawberry Creek; San Jacinto Canyon, Strawberry Creek 1219 Comment
  RSA704877  Lotus heermannii J. B. B. 1934-2-19 s.n. Riverside Idyllwild. Comment
  UCR35035  Lotus heermannii L. B. Ziegler 1967-8-2 199 Riverside Peninsular Ranges, San Jacinto Mtns., upper Herkey Creek area 1524 Comment
  UCR174358  Lotus humistratus A. C. Sanders 2006-5-19 32382 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
  UCR181159  Lotus humistratus R. E. Riefner Jr. 2005-8-28 05- 649 Riverside Peninsular Range, SE of Lake Elsinore toward Wildomar, Corydon Rd. at Union St. 394 Comment
  UCR256089  Lotus nevadensis var. davidsonii G. D. Wallace 2003-7-8 4034 Riverside Peninsular Range; San Jacinto Mountains, Hidden Lake 2652 Comment
  POM12928  Lotus oblongifolius P. A. Munz 1922-6-27 5853 Riverside Santa Rosa, Santa Rosa Mts. 1982 Comment
  UCR120339  Lotus purshianus Mitch Provance 1998-7-23 924 Riverside Jurupa Mountains, Glen Avon Heights, 'Granite Hill', 0.5 mile SSW of peak 1437, on the E side of the water tank 259 Comment
  JEPS55766  Lotus purshianus var. purshianus Carl V. Meyer 1928-7-30 588 Riverside Saunders Meadow Comment
  CDA27284  Lotus rigidus T. C. Fuller 1963-4-23 10293 Riverside Sac Jacinto Mountains; Highway 47 to Palm Desert just east of Pinyon Flat. 0 Comment
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Sep 4 2011
  CLARK-A1656-715  Lotus rigidus unknown 1981-3-14 Riverside Coachella Valley Comment
  JOTR31879  Lotus rigidus La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2133 Riverside Joshua Tree National Park. Little San Bernardino Mountains; steep, gravelly, southwest facing slope above fork of Fargo and Rockhouse Canyons Comment
  RSA406795  Lotus rigidus Christopher Davidson 1973-4-19 1977 Riverside Joshua Tree Natl. Monument, ca 4 mi. E of Split Rock, ca 1.5 mi S of park entrance. 1220 Comment
  UC64819  Lotus rigidus E. E. Schellenger 1904-3-28 60 Riverside Cottonwood Springs Colorado Desert, Cottonwood Mt. Comment
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Oct 9 2010
  RSA543976  Lotus salsuginosus Steve Boyd 1991-5-10 6208 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  UCR47242  Lotus salsuginosus B. G. Pitzer, L. F. LaPre 1987-3-2 0434 Riverside Peninsular Range, Bundy Canyon, c. 2 miles SE of Lake Elsinore, 0.5 mile north of Bundy Canyon Road off Raciti Rd. 703 Comment
  JOTR31942  Lotus salsuginosus var. brevivexillus La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2180 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky drainages feeding into southwest Pinkham Wash Comment
  UCR18156  Lotus salsuginosus var. brevivexillus A. C. Sanders 1978-3-19 0841 Riverside Santa Rosa Mtns/Colorado Desert, Deep Canyon Reserve, along the Worley Trail just above the Research Center 427 Comment
  UCR102760  Lotus scoparius B. G. Pitzer, O. F. Clarke, S. Reed, G. Ruiz 1998-3-7 3583 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
  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
  RSA406901  Lotus scoparius var. brevialatus Christopher Davidson, B. Gustafson 1977-4-7 5571 Riverside Whitewater Canyon Rd. (exit from Interstate-10 ca. 2.5 mi. W of jct I-10 with State 62); near start of Angeles [Pacific] Crest Trail. Hillside, N slope. 610 Comment
  RSA613457  Lotus scoparius var. brevialatus D. L. Banks, Victor W. Steinmann 1997-3-13 1435 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
  RSA771670  Lotus strigosus Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4898 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
  UC56584  Lotus strigosus H. M. Hall May 1901 1907 Riverside Coyote Canyon San Jacinto Mountains, Santa Rosa Mountain 1524 Comment
  UCR103169  Lotus strigosus Scott D. White, Julie Greene 1997-3-12 4780 Riverside Perris Basin, Sun City, near Interstate Hwy 215, south of Perris and north of Menifee, low hills east of Bavaria Drive 488 Comment
  UCR173155  Lotus strigosus Abby Sirulnik 2000-4-13 11 Riverside Peninsular Ranges, Southwestern Riverside County Multispecies Reserve, c. 3 mi NE of Skinner Reservoir 610 Comment
  UCR228877  Lotus strigosus A. C. Sanders 2011-4-6 38995 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  POM49155  Lotus strigosus var. hirtellus P. A. Munz 1924-5-18 8134 Riverside 18 miles south of Banning on Idyllwild Road. 1524 Comment
  RSA526497  Lotus strigosus var. hirtellus Steve Boyd, T. S. Ross 1990-5-11 4692 Riverside Vail Lake area, N flank and summit of Wild Horse Peak in Agua Tibia Mtns, Cleveland Nat. Forest. 610 Comment
  SEINET2062441 Image available Lotus strigosus var. tomentellus B. Pitzer, L. LaPre 1987-3-2 437 Riverside Bundy Canyon ca. 2 mi SE of Lake Elsinore and 0.5 mi. N of Bundy Canyon Rd., off Raciti Rd. (Romoland 7.5 Quad) 701 Comment
  RSA49387  Lotus tomentellus P. A. Munz 1949-4-12 13025 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  RSA192129  Lotus unifoliolatus E. W. Lathrop 1966-5-25 6334 Riverside 5 miles NW of Murrieta. Comment
  RSA90137  Ludwigia peploides subsp. peploides E. K. Balls, George B. Everett 1953-8-19 18528 Riverside Lake Fulmore, on road from Banning to Idyllwild. 1625 Comment
  RSA278564  Lupinus T. C. Emmel 1961-3-21 s.n. Riverside Chino Canyon Comment
  POM349963  Lupinus arizonicus Anstruther Davidson 1930-1 s.n. Riverside Colorado Desert. Comment
  RSA414840  Lupinus arizonicus Elizabeth A. White 1928-04 s.n. Riverside Colorado desert near Banning Comment
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Oct 23 2011
  RSA450526  Lupinus arizonicus B. A. Prigge 1988-2-21 7836 Riverside Colorado Desert, Orocopia Mountains: 2 miles W of Clemens Well. 229 Comment
  RSA48410  Lupinus arizonicus E. K. Balls 1949-4-2 12895 Riverside Between Mecca and Mortmar on Hwy 111 -61 Comment
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Jun 24 2012
  SBBG81484  Lupinus arizonicus S. A. Junak 1983-3-23 1631 Riverside E side of Jefferson Rd, opposite entrance to Cahuilla Lake County Park Comment
  SJSU1877  Lupinus arizonicus J. W. Tilden 1957-4-18 1093 Riverside near Whiteater, E of San Gorgonio Pass Comment
  SBBG89044  Lupinus bicolor P. Pitzer, K. Kirtland 1986-5-6 201 Riverside Butterfield Stage Ranch development, N side of Pauba Valley, 1 mi S of Buck Mesa on the E side of Butterfield Stage Rd 457 Comment
  UCR104024  Lupinus bicolor George K. Helmkamp, E. A. Helmkamp 1997-3-5 1334 Riverside San Bernardino Mtns./San Gorgonio Pass, Cabazon, 0.5 mi north of I-10 on Millard Pass Rd. 564 Comment
  UCR154762  Lupinus bicolor T. B. Salvato, Kent Beaman 2005-5-16 789 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
  UCR91492  Lupinus bicolor Scott D. White 1995-4-5 2725 Riverside Perris Valley, Lakeview Mountains: directly south of Rosary Ave. at ' T ' intersection with Central Ave., in town of Nuevo 488 Comment
  RSA562460  Lupinus bicolor subsp. microphyllus Steve D. Boyd, Tim S. Ross 1992-5-5 7227 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Eastern portions of Oak Flats along the Bluewater Trail 732 Comment
  RSA772414  Lupinus concinnus Orlando Mistretta, Duncan S. Bell, Joy D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4851 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
  RSA783241  Lupinus concinnus J. D. Olmsted 1962-6-3 3484 Riverside S slope along road on north side of Hemet Lake 1280 Comment
  UCR162766  Lupinus concinnus S. J. Myers, John F. Green 2003-4-4 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  RSA483605  Lupinus concinnus subsp. optatus D. Charlton 1988-5-21 1948 Riverside Thomas Mountain Rd, from North to South. West of Garner Valley and South of Lake Hemet on Hwy 74 1677 Comment
  UCR16231  Lupinus concinnus subsp. optatus C. Bahre 1970-4-30 s.n. Riverside San Jacinto Mtns., North Fork of San Jacinto River 1524 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
  RSA192126  Lupinus concinnus var. concinnus E. W. Lathrop 1959-4-17 4476 Riverside 14 miles west of Murrieta. Tenaja Plateau. West slope of Redonda Mesa. Comment
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Apr 28 2011
  OBI30747  Lupinus excubitus Rhonda Riggins 1982-4-15 1342 Riverside Roadside CA 371 in Anza Valley, 7.5 mi N jctn CA 79 in Aguanga Comment
  SBBG35011  Lupinus excubitus T. L. Secrest 1951-5-18 Riverside San Jacinto River, E of Hemet Comment
  CAS-BOT-BC216679  Lupinus excubitus subsp. hallii P. A. Munz; I. M. Johnston 1922-5-19 5407 Riverside Above Oak Cliff, San Jacinto Canyon, San Jacinto Mountains Comment
  CAS-BOT-BC216690  Lupinus excubitus subsp. hallii Ynez Whilton Winblad 1937-4-3 s.n. Riverside Between Beaumont and Riverside Comment
  CAS-BOT-BC205386  Lupinus excubitus var. austromontanus Christopher Davidson 1975-6-16 2815 Riverside 3.8 mi N of Alandale Station on road R1 from Idyllwild to Banning 1699 Comment
  LA205059  Lupinus excubitus var. austromontanus Norman C. Cooper; 1944-6-17 2006 Riverside San Jacinto Mountains, above Banning 1219 Comment
  RSA526163  Lupinus excubitus var. hallii Steve Boyd, T. S. Ross 1990-5-11 4666 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
  RSA503433  Lupinus hirsutissimus J. D. Olmsted 1962-5-10 3650 Riverside Crest between Sandia Creek and DeLuz Creek drainages 259 Comment
  UCR176927  Lupinus hirsutissimus Tracy Tennant, Jeffrey Ross 1998-3-10 MOR- 1103 Riverside San Bernardino Mtns., Morongo Indian Reservation, Potrero Canyon 1037 Comment
  POM123543  Lupinus hyacinthinus Philip A. Munz, I. M. Johnston 1924-7-27 8772 Riverside Deer Springs, San Jacinto Mountains. 2500 Comment
  POM229048  Lupinus hyacinthinus Philip A. Munz 1937-5-30 15141 Riverside Santa Rosa Peak. 2409 Comment
  RSA600850  Lupinus hyacinthinus C. Epling, Wm. Robison 1935-6-30 s.n. Riverside Mt. San Jacinto: Above Marion Camp. Comment
  UC729829  Lupinus hyacinthinus Carl B. Wolf 1932-8-5 3934 Riverside Summit of Devil's Slide Trail from Idyllwild to Tahquitz Valley; San Jacinto Mts., summit of Devil's Slide Trail 2438 Comment
  SEINET7063561 Image available Lupinus odoratus A. G. Vestal 1947-4-8 s.n. Riverside About 6.8 miles south on Route 3. UTM Zone 11, 509589mE, 3707060mN. (WGS84/NAD83). 610 Comment
  UCR101790  Lupinus sparsiflorus George K. Helmkamp, E. A. Helmkamp 1997-3-5 1324 Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  POM2382  Lupinus sparsiflorus var. inopinatus H. M. Hall 1902-04 7294 Riverside [No location information provided.] Comment
  POM50375  Lupinus succulentus W. W. Eggleston 1924-3-8 19522 Riverside Hemet. 480 Comment
  RSA660061  Lupinus succulentus Matt Bogdanoff 1981-4-11 7 Riverside Cajalco Rd., 5.9 mi E of junction with La Sierra Ave., SE of Lake Mathews. 488 Comment
  SBBG120070  Lupinus succulentus A. C. Sanders, K. Volansky 2005-3-17 29211 Riverside French Valley, SE of Winchester Rd (Hwy 79) between Thompson Rd and Benton Rd, ca. 0.5 mi NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  SEINET13198373 Image available Lupinus succulentus A. G. Vestal 1947-3-29 s.n. Riverside Comment
  UCR96913  Lupinus succulentus G. F. Pratt 1997-3-19 s.n. Riverside March Air Force Base, SE of Arnold Heights & east of Alessandro Blvd. 460 Comment
  UCR213445  Lupinus truncatus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37804 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, west of dirt extension of Lake St., 1.0 mi. NW (341 deg. ) of intersection of I-15 and Lake St. 526 Comment
  UC56819  Lycium F. Gilman 1902-1 24 Riverside Palm Springs Comment
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Apr 3 2011
  RSA422104  Lycium andersonii H. de Forest, Jack Rempel 1937-3-15 415 Riverside South of Rice. Comment
  RSA0020068  Lycium brevipes var. brevipes M. French Gilman 1930-4-27 s.n. Riverside Dos Palmos, east of Mecca. Comment
  RSA784977  Lycium pallidum var. oligospermum Duncan S. Bell 2012-3-18 3221 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
  UCR41550  Machaeranthera tortifolia A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6091 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  RSA619542  Madia gracilis D. L. Banks 1997-5-5 1991 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. East of where the road crosses to the southern bank of the south fork of Pechanga Creek. 427 Comment
  RSA0104033  Malacothamnus densiflorus Scott D. White 1991-5-13 91 -111 Riverside Hwy 79, immediately W of U.S. Forest Service Campground at Dripping Springs. 549 Comment
  UCR261217  Malacothamnus densiflorus A. C. Sanders, Jeff Crain 2015-5-20 41741 Riverside Temesal Canyon, Temescal Creek at I-15 bridge, 2.2 km west of Lake St. at Alberhill 363 Comment
  OBI8074  Malacothamnus fasciculatus David J. Keil, Malcolm McLeod 1977-3-26 12022 -1 Riverside 9 mi E of jctn with I-15 along Calif 79 518 Comment
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Aug 14 2015
  POM10403  Malacothamnus fasciculatus Charlotte M. Wilder 1904-6-11 35 Riverside Wilders Canyon; Jurupa Hills near Riverside. Comment
  RSA263741  Malacothamnus fasciculatus E. W. Lathrop 1968-5-17 6893 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. 1082 Comment
  SEINET4083442  Malacothamnus fasciculatus O. M. Clark 1932-1 5106 Riverside South Hemet. Comment
  RSA487447  Malacothrix californica Jack Easton 1988-5-2 s.n. Riverside Anza area 1189 Comment
  UCR34908  Malacothrix californica L. B. Ziegler 1967-4-25 122 Riverside San Jacinto Mtns Foothills, Cahuilla Indian Reservation [near Anza] 1067 Comment
  POM229455  Malacothrix clevelandii P. A. Munz 1937-5-30 15087 Riverside Northwest slope of Santa Rosa Mountain. 2134 Comment
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Sep 4 2009
  RSA586865  Malacothrix clevelandii D. L. Banks, S. D. Boyd 1995-5-3 0284 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
  UCR17638  Malacothrix clevelandii Jeanine Derby, O. F. Clarke 1974-5-3 s.n. Riverside Lakeview Comment
  VVC92  Malacothrix clevelandii A. C. Sanders, J. Mac 1997-5-4 Riverside San Jacinto Mountains, N side along Hwy 243, 1.5 mi. below Twin Pines Ranch Road (McMullen Flat), N slope of peak 3740 1067 Comment
  CAS-BOT-BC347682  Malacothrix glabrata Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater 304 Comment
  RSA777726  Malacothrix glabrata J. Andre, Glenn L. Clifton 2011-2-22 17429 Riverside Mecca Hills; along Box Canyon Road, 8.5 miles NE of town of Mecca 171 Comment
  SEINET10389903  Malacothrix glabrata A. C. Sanders, Jim Malusa 2016-3-17 42355 Riverside north edge of Chocolate Mountains Aerial Gunnery Range, upper Arroyo Seco on south shoulder of Bradshaw Trail 686 Comment
  UCR104019  Malacothrix glabrata George K. Helmkamp 1998-4-4 3140 Riverside Sonoran (Colorado) Desert, junction of Calif. Hwy 62 (Twentynine Palms Hwy) & Calif. Hwy 177 (Desert Center-Rice Rd) 457 Comment
  UCR167466  Malacothrix glabrata John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, NNE of Rancho Dos Palmas, between Coachella Canal siphons 28 and 29 24 Comment
  UCR89560  Malacothrix glabrata George K. Helmkamp 1994-3-10 42 7 Riverside Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north 122 Comment
  UC1871318  Malacothrix saxatilis var. tenuifolia Steve Boyd, Tim Ross, Travis Columbus 1993-10-23 8191 Riverside Peninsular Ranges; Santa Ana Mountains region; Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, upper Morrell Canyon along Morgan Trail (5W02). T6S R5W W/2 SE/4 sec. 22. E/2 NW/4 sec. 27. Elev. 2880 - 2480 ft. Comment
  RSA554214  Malvella leprosa A. C. Sanders, Chet McGaugh 1991-7-19 11147 Riverside Murrieta Hot Springs, large vernal pool on the S side of Murrieta Hot Springs Road, E of Via Princesa & N of Calle del Lago 348 Comment
  RSA7198  Mammillaria dioica B. D. Stark 1932-09 7375 Riverside East slope of San Jacinto Mountains on the Palms to Pines road. 1524 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
  RSA441211  Marah macrocarpa A. Menke 1955-4-28 s.n. Riverside Near Barton Peak Lookout. San Jacinto Mts. Comment
  CHSC99605  Marina parryi LeRoy Gross 2005-3-3 1601 Riverside Colorado Desert; Northeastern Colorado Desert region: Palen Mountains, south side. Near end of old prospect road. Near 33.71244N, 115.11171W to 33.72053N, 115.11051W. General collecting along ridge with patino and a rejuvenate steep sided rocky, sandy canyon just to the east. All on a sparse vegetative pebbly plain bajada. 225 Comment
  GMDRC9819  Marina parryi J. M. Andre 2017-3-1 38068 Riverside Coxcomb Mountains: north of Hwy 177 at JTNP boundary, 10.1 mi. NE of Desert Center (I-10) 159 Comment
  RSA567642  Marina parryi Theo Glenn 1991-4-30 91 -58 Riverside Colorado Desert, McCoy Mtns, NW of Blythe. T5S, R20E, approx. S19, Alt 170m 170 Comment
  SD121977  Marina parryi Leota Davidson 1966-4-3 317 Riverside Highway 10 at Wiley Wells turn-off, 20 miles east of Desert Center. Comment
  UCR159209  Marsilea vestita A. C. Sanders, Kelly Volansky 2005-8-31 31585 Riverside Santa Ana Mtns. Region, Santa Rosa Plateau, hills west of headwaters of De Luz Creek, 50 acre parcel on east side Avenida La Cresta south of Sierra Elena Rd., c. 0.5 mi. N of Tenaja Rd. 701 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
  UCR216239  Matricaria discoidea Mike Bell 2008-4-27 012 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau Ecological Reserve, Adobe Loop Trail 557 Comment
  RSA720654  Matricaria globifera John Green 2005-5-4 s.n. Riverside SE corner Markham St. and Day St., Mead Valley area, 2-3 mi SW of March Air Reserve Base. 534 Comment
  RSA614124  Matricaria matricarioides D. L. Banks 1997-2-23 1291 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, south of Pechanga Road in the Reservation, north of Pechanga Creek, and east of the Pechanga Tribal Government Center. 367 Comment
  LA206250  Meconella denticulata W. E. Pequegnat; 1939-4-8 14 Riverside Santa Ana Mountains, Coldwater Trail 701 Comment
  RSA543842  Meconella denticulata Steve Boyd, Orlando Mistretta 1991-5-22 6303 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dorland Mtn, W of Kolb Crk. 549 Comment
  UCR78096  Meconella denticulata Steve Boyd 1991-5-20 6269 Riverside Santa Ana Mtns., NW of Lake Elsinore. Lower Rice Cyn, just inside Cleveland Nat. For. boundary 671 Comment
  UCR85085  Medicago lupulina A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16028 Riverside Sonoran (Colorado) Desert, Coachella Valley, City of Indio, just SW of Whitewater River channel at Auto Center Drive (Hwy 111) -7.5 Comment
  CHSC98225  Melica frutescens R. E. Riefner Jr. 2006-7-29 06 -350 Riverside Lakeview Mountains, vicinity of Alicante Dr. and Jamawag Rd., NNW ca 0.75 mi from Leon Rd. UTM; 11S 0488764E 3736046N 579 Comment
  SD146086  Melica frutescens A. C. Sanders, Mitch Provance, T. B. Salvato 2000-6-1 23442 Riverside Menifee Valley: S of Newport Rd., N of Holland Rd., and E of Bradley Rd., 2 miles due east of Railroad Canyon Lake 438 Comment
  UCR92676  Melica frutescens Scott D. White 1994-5-4 2012 Riverside Beaumont Badlands, near county dump and old DeAnza Cycle Park, north of Hwy 60 701 Comment
  CAS-BOT-BC281600  Melica imperfecta H. M. Hall 1899-5-20 s.n. Riverside Along Strawberry Creek, San Jacinto Mts 1371 Comment
  CLARK-A1528-75  Melica imperfecta C. M. Flanagan 1973-5-31 OO 650 Riverside Morongo Indian Reservation 975 Comment
  HSC79631  Melica imperfecta Paul Bailey 1972-5-14 132 Riverside 5 mi. SE of Temecula, Hwy. S 16, Pechanga Canyon. 671 Comment
  JOTR34160  Melica imperfecta Harding, Mitzi, T. Herskovits and D. Oquendo 2011-5-5 117 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Pushawalla Canyon; Wide sandy canyon wash (Stop 1) 1149 Comment
  RSA403498  Melica imperfecta J. D. Olmsted 1962-5-10 3669 Riverside West of crest between Sandia and DeLuz Creeks along Murrieta to DeLuz Road. 206 Comment
  UCR117083  Melica imperfecta A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-9 24212 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
  RSA0121382  Melilotus albus Duncan S. Bell, LeRoy Gross 2016-3-30 9140 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 6.75 air miles southeast of the summit of Martinez Mountain. 698 Comment
  UCR241210  Melilotus indicus Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 02 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, just inside gate at mouth of Hathaway Canyon 741 Comment
  UCR143385  Mentha aquatica Joseph A. Ewan 1931-10-3 5212 Riverside Santa Ana River, 4 miles NW of Corona 162 Comment
  UCR149976  Mentha spicata Scott D. White 2000-11-15 8151 Riverside Peninsular Range; San Jacinto Mtns, Idyllwild area, 'Strawberry Fuelbreak' betwen 'Inspiration Point' and Strawberry Creek 1646 Comment
  RSA613647  Mentzelia D. L. Banks, Victor W. Steinmann 1997-3-13 1472 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
  UCR249928  Mentzelia albicaulis T. B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-3-8 7291 Riverside Sonoran (Colorado) Desert, south of Hwy I-10, north of the Chuckwalla Mountains, Chuckwalla Valley Road c. 1.4 km west of its junction with Augustine Pass Road 137 Comment
  POM99008  Mentzelia albicaulis var. albicaulis E. C. Jaeger 1926-4-24 s.n. Riverside Eagle Mts. eastern Riverside Co. 976 Comment
  RSA649332  Mentzelia involucrata Marie Cichra 1976-4-25 107 Riverside Corn springs, approx. 13 miles from intersection of Corn Springs Road and Chuckwalla Rd., off I-10. Comment
  UCR165638  Mentzelia involucrata John F. Green 2005-2-2 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, transect along Coachella Canal right-of-way, between siphons 29 and 30, c. 3 mi east of Desert Beach 24 Comment
  UCR233171A  Mentzelia involucrata Jim Andre, Glenn L. Clifton 2011-2-22 17440 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  UCR35317  Mentzelia laevicaulis L. B. Ziegler 1967-10-4 253 Riverside San Jacinto Mtns., San Jacinto Mtns. 915 Comment
  RSA543979  Mentzelia micrantha Steve Boyd 1991-5-10 6211 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  CAS-BOT-BC435293  Mesembryanthemum nodiflorum A. C. Sanders 1993-5-12 14003 Riverside Hemet, SW corner of the intersection of Florida Ave. (Hwy 74) and Warren Rd., between the New San Diego Aqueduct and Warren. 460 Comment
  CAS-BOT-BC435295  Mesembryanthemum nodiflorum A. C. Sanders; K. C. Rose 1998-5-21 21853 Riverside Hemet: alkaline flats west of town, E of the canal, S of Hwy 74 (Florida) and ca. 1/4 mi. W of Warren Rd. 457 Comment
  UC1929670  Mesembryanthemum nodiflorum Scott D. White 2003-6-9 9526 Riverside PERRIS BASIN: Northeast corner of Devonshire Ave. and Warren Rd., immediately south of Tres Cerritos. Comment
  UCR126991  Mesembryanthemum nodiflorum A. C. Sanders, Guy Bruyea 2003-6-12 26889 Riverside Perris-Aguanga Basin Region, Winchester, SW edge of town between Simpson Ave. and Olive Ave., c. 1 km west of Hwy 79/Winchester Rd. 445 Comment
  RSA614099  Microseris douglasii subsp. douglasii A. C. Sanders, George K. Helmkamp 1997-3-15 19995 Riverside Lake Skinner, SE foot of Bachelor Mtn., just north of the lake. 500 Comment
  UCR91478  Microseris douglasii subsp. platycarpha Scott D. White, M. Jacobsmeyer 1996-4-20 3945 Riverside Bundy Canyon Road, west of Menifee. c. 4-5 mi west of Interstate Hwy-215 freeway. north of road. 549 Comment
  RSA263715  Microseris douglasii subsp. tenella E. W. Lathrop 1969-5-9 7050 Riverside Mail Divide Truck. Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  UC1595584  Microseris heterocarpa Steve Boyd and Orlando Mistretta 1991-5-9 6184 Riverside Santa Ana Mountains, lower flank of range along the Bedford Truck Trail on ridge between Bedford and McBride Canyons. 548 Comment
  UCR120963  Microseris heterocarpa A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23890 Riverside Perris-Aguanga Basin region, Temecula, along east side of pipeline NE of Long Canyon, west of San Diego Aqueduct 381 Comment
  UCR225581  Microseris heterocarpa A. C. Sanders, T. B. Salvato 2011-3-29 38870 Riverside Peninsular Range; Perris-Aguanga Basin Region, between Sun City and Perris, along powerline corridor 0.45 east of Goetz Rd. and 0.07 km east Wheat St. 450 Comment
  UCR230188  Microseris lindleyi A. C. Sanders 2011-4-6 38988 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  RSA192025  Microsteris gracilis subsp. gracilis E. W. Lathrop 1959-4-2 4413 Riverside Cleveland National Forest, Trabuco District, Tenaja Guard Station, slopes of Tenaja Canyon. Comment
  UC64207  Mimulus aurantiacus var. pubescens H. M. Hall Mar. 1898 Riverside Riverside Comment
  UCR86864  Mimulus bigelovii A. C. Sanders, K. C. Rose 1995-4-27 16745 Riverside Sonoran (Colorado) Desert, Coachella Valley, foot of the Little San Bernardino Mtns., canyon east of Fan Hill, just outside Joshua Tree Nat. Park 549 Comment
  RSA561414  Mimulus cardinalis Steve Boyd, Tim S. Ross, Dave Bramlet 1992-9-9 7679 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
  UCR35252  Mimulus cardinalis L. B. Ziegler 1968-6-26 322 Riverside San Jacinto Mtns, N slope of Thomas Mtn 1555 Comment
  CLARK-A1045-66  Mimulus diffusus George K. Helmkamp 1978-5-6 Riverside Bautista Canyon burn on moist, north slope of Canyon; Hemet 15'Q Comment
  CLARK-A1528-1234  Mimulus floribundus John C. Roos 1937-7-11 396 Riverside Box Springs Mountains 609 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
  UC26926  Mimulus floribundus H. M. Hall 1901-7 2579 Riverside Tamarack Valley San Jacinto Mountains 2499 Comment
  UCR156286  Mimulus floribundus T. B. Salvato, Kent Beaman 2005-5-16 838 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
  RSA0054839  Mimulus floribundus Keith E. Hoffmaster 1933-4-14 526 Riverside Tahquitz Canyon. Comment
  UCR108857  Mimulus fremontii Heidi A. Haid 1968-5-8 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  SEINET7048053  Mimulus guttatus Steven R. Hill 2001-4-29 33528 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
  UCR133414  Mimulus guttatus Jeffrey Ross, T. B. Salvato 1998-6-9 MOR- 317 A Riverside San Bernardino Mtns. Region, Morongo Indian Reservation, Lion Canyon, c. 3.5 miles NNW of Cabazon 854 Comment
  UCR214330  Mimulus guttatus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38369 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, along dirt extension of Lake St., c. 1.0 mi. NNE (04 deg. ) of intersection of I-15 and Lake St. 503 Comment
  RSA1317  Mimulus pilosus J. T. Howell 1928-7-9 1071 Riverside Head of San Juan Canyon. Elsinore Mountains 793 Comment
  UCR174078  Mimulus pilosus A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32592 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
  JOTR31048  Mimulus rubellus La Doux, Tasha, Maria Harding, Mark Wheeler 2010-5-20 2031 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lower Covington Flats; STOP 1: drainage heading toward Smithwater Canyon, rocky canyon with narrow sandy bottom Comment
  CAS-BOT-BC174764  Minuartia nuttallii var. gracilis George Robertson 21 Riverside Near Summit of Grayback near Redlands Comment
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Sep 3 2017
  UCR138825  Mirabilis californica D. L. Banks 1997-2-23 1306 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation, north of Pechanga Rd. and south of Anza Rd., just NNW of San Gabriel Church in the area burned by the 1996 Temecula Fire 460 Comment
  UCR225597  Mirabilis laevis A. C. Sanders, T. B. Salvato 2011-3-29 38879 Riverside Peninsular Range; Perris-Aguanga Basin Region, between Sun City and Perris, along powerline corridor between Byers St. at west end of McLaughlin Rd. and Wheat St. 447 Comment
  UCR264233  Mirabilis laevis A. C. Sanders, Jim Malusa 2015-9-10 41860 Riverside Sonoran (Colorado) Desert, Bradshaw Trail, 0.85 mi. SE of its junction with Summit Rd. in Salt Creek Canyon, at wash crossing, at edge of Chocolate Mountains Aerial Gunnery Range 480 Comment
  RSA678427  Mirabilis laevis var. crassifolia Michael Wall 2003-4-26 308 Riverside South of Diamond Valley, northeast of Skinner Reservoir, off Rawson Rd. 0.4 mi. from jct. with Washington Ave. off Winchester Rd. 466 Comment
  RSA464833  Mirabilis laevis var. retrorsa Bonnie C. Templeton, I. W. Clokey 1930-4-9 1012 Riverside North of Palm Springs. Colorado desert. 400 Comment
  UC196564  Mohavea confertiflora Joseph Grinnell 1910-3-17 Riverside Riverside Mountain, Colorado River Colorado River; Riverside Mountain, Colorado River Comment
  UCR233166  Mohavea confertiflora Jim Andre, Glenn L. Clifton 2011-2-22 17445 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  RSA587580  Monardella lanceolata D. L. Banks, Steve Boyd 1995-6-15 704 Riverside NW Palomar Mountains; Agua Tibia Mountains; Devils Hole area, NNE of the Crosley Homestead; On the Crosley Road, approximately 0.2 miles N from its junction with the Cutca Road. 732 Comment
  RSA750278  Monardella nana subsp. arida Elizabeth McClintock, H. Lewis 1941-6-29 79 Riverside Road up Santa Rosa Mt. 4.5 miles beyond canyon where stream crosses road. Comment
  RSA750308  Monardella nana subsp. arida Elizabeth McClintock 1941-7-21 124 Riverside San Jacinto Mts. Trail to Hidden Lake, a short distance beyond Willow Creek. Comment
  SDSU7308  Monardella nana subsp. arida H. Wedberg 1962-4-20 912 Riverside About 1 mile SE of Pinyon Flats on raod to Palm Springs. 1219 Comment
  RSA750271  Monardella nana subsp. tenuiflora Elizabeth McClintock, H. Lewis 1941-6-22 70 Riverside Stne Creek on the Banning-Idyllwild road. Comment
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Mar 1 2014
  RSA750301  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-15 114 Riverside San Jacinto Mts. On slope south of Strawberry Creek, and west of Domengonio Flats. Comment
  UC1499829  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-21 126 Riverside trail to Hidden Lake (below the point at which the switchbacks begin); San Jacinto Mts. Comment
  UC1499890  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-5-31 53 Riverside between 5 and 5 3/4 mi from Anza Monument turn off Comment
  UC1499957  Monardella nana subsp. tenuiflora E. and M. McClintock, D. Weiner 1941-7-11 100 Riverside 1 1/4 mi beyond the snow gate Black Mt. Comment
  CAS-BOT-BC349785  Monoptilon bellioides N. Aitkenhead 1977-2-3 2125 Riverside Moniobra Valley N. of Orocopia Mnts Comment
  UCR103724  Monoptilon bellioides B. G. Pitzer 1998-1-24 3388 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
  UCR165265  Monoptilon bellioides John F. Green 2005-2-2 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, transect along Coachella Canal right-of-way, between siphons 29 and 30, c. 3 mi east of Desert Beach 24 Comment
  CAS-BOT-BC444627  Montia chamissoi H. M. Hall 1901-7-1 2402 Riverside Tamarack Valley, San Jacinto Mt. 2804 Comment
  POM14440  Muhlenbergia microsperma P. A. Munz, Johnston 1922-5-21 5550 Riverside 4 mi. N.E. of San Jacinto 457 Comment
  SEINET212451 Image available Muhlenbergia microsperma Noel H. Holmgren, Patricia K. Holmgren; Ruth E. Ke 1973-3-21 6436 Riverside Big Maria Mountains 12 airline miles north of downtown Blythe. 290 Comment
  SEINET255560 Image available Muhlenbergia microsperma Mitch Provance 2004-5-1 7604 Riverside Granitic Knolls of Riverside, W side of Versity Hill (Coyote Hill), S side of the UCR campus 396 Comment
  UC1584117  Muhlenbergia microsperma Steve Boyd, Tim Ross, and Laurel Arnseth 1990-3-29 3840 Riverside cinder cone ridge at n side mouth of Temecula Creek Cyn (and adjacent benches on s flank of 'Big' Oak Mtn.); Vail Lake area 396 Comment
  UCD86853  Muhlenbergia microsperma H. K. Wagnon; B. Rateaver 1944-1-8 282 Riverside Palm Springs .At the base of Dry Falls, Tachevah Canon. 152 Comment
  UCR2588  Muhlenbergia microsperma F. M. Reed 1917-5-19 3857 Riverside Sonoran (Colorado) Desert, Palm Canyon, near palm grove Comment
  UCR90300  Muhlenbergia microsperma F. M. Reed 1920-5-24 4351 Riverside Riverside, Box Springs Mtns: Canyon east of Highgrove, above Eureka Ranch 396 Comment
  SEINET10900718  Muhlenbergia porteri David B. Dunn 1947-10-9 Dunn 3525 Riverside Grass. Joshua Tree National Monument at campground area by Hidden Valley. Comment
  UCD87126  Muhlenbergia rigens H. S. Yates 1936-8-28 6371 Riverside Near Keen Camp. 1584 Comment
  RSA680487  Muilla maritima Scott D. White, Michael Honer, Dylan Hannon 2003-6-24 9593 Riverside Mountains west of I-15 Freeway and immediately north of San Diego County boundary. 335 Comment
  RSA68692  Muilla maritima F. W. Peirson 1922-4-29 2942 Riverside 2 miles south of Elsinore. 366 Comment
  UC1532792  Myosurus minimus subsp. apus Robert F. Thorne, Earl Lathrop 1975-5-25 45564 Riverside Mesa de Burro Rancho; Santa Rosa Plateau 609 Comment
  UCR281106  Myosurus minimus var. apus Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-3-29 317- 26 Riverside Menifee Valley, Menifee, about 0.5 miles south of Sun City, and 0.5 miles west of Romoland, SW corner of Lazy Creek Rd. and Murrieta Rd. 431 Comment
  UCR17317  Najas marina Carl Yonge 1976-7-5 s.n. Riverside Western Colorado Desert, Indio, lake in municipal golf course [Ave. 42, sea level] 0 Comment
  RSA676162  Nama demissa Scott D. White 2001-4-3 8240 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  UCR130123  Nama demissa Scott D. White 2001-4-3 8240 Riverside Sonoran (Colorado) Desert, Shavers Valley, near the I-10 Freeway, c. 15 miles east of Indio junction of I-10 and Calif. SR 111, adjacent to powerline access roads at unnamed freeway exit accessing pump station 473 Comment
  UC880818  Nama demissa var. demissa C. L. Hitchcock 1940-3-29 5866 Riverside ca 100 yeads e spring Cottonwood Canyon (Cottonwood Canyon); , e of Spring Comment
  RSA779007  Nama hispida var. spathulata Duncan S. Bell 2010-4-1 641 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
  UC2061796  Nama pusilla Susan Fawcett, B. G. Baldwin 2017-5-14 767 Riverside Corn Springs, Chuckwalla Mountains. Comment
  RSA702729  Nassella pulchra Scott D. White, Michael Honer 2004-4-6 10060 Riverside Temescal Valley, just north of the I-15 Freeway and east of Indian Truck Trail, south and west of Lee Lake. 335 Comment
  UC1531114  Nassella pulchra Kay L. Tomlinson, Deborah L. Kama, and Robert F. Thorne 1985-3-27 890 Riverside Mesa de Colorado Santa Rosa Plateau 609 Comment
  RSA544297  Navarretia atractyloides Steve Boyd, T. S. Ross 1991-6-14 6350 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
  UCR280982  Navarretia atractyloides Mitch Provance 2017-5-25 517- 68 Riverside Temescal Valley, 0.3 to 0.5 miles SE of Indian Truck Trail, between Temescal Canyon Rd. and Hwy. 15 361 Comment
  SD138833  Navarretia fossalis Craig Reiser 1993-4-25 Riverside South side of Highway 79, perhaps I(c) mile east of Los Caballos Road. (IPB 3/06) Comment
  POM122127  Nemacaulis denudata var. denudata S. B. Parish 1906-5-1 s.n. Riverside Palm Springs. Comment
  UCR18148  Nemacaulis denudata var. gracilis A. C. Sanders 1978-4-2 565 Riverside Coachella Valley, Indian Wells; growing in the sand dunes at the intersection of Bay Club Drive and Highway 111 30 Comment
  SEINET1869534  Nemacladus glanduliferus Robert F. Thorne, W. Wisura, A. Shmida and R. Whittaker 1978-1 52037 Riverside San Jacinto Mountains: Chino Canyon, Palms to Pines Highway. Comment
  SEINET10873470  Nemacladus glanduliferus var. glanduliferus Mcneal 1979-4-20 MCNEAL 2208 Riverside In a large flash flood wah parallel to highway 195, 9.9 miles southwest of its junction with Interstate 10 Comment
  SEINET10458394  Nemacladus longiflorus Boyd 1986-4-22 BOYD 1753 Riverside Temescal Canyon: Alluvial benches of Indian wash just south of Interstate 15 Comment
  UCR59527  Nemacladus longiflorus var. longiflorus Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3600 Riverside Butterfield Valley, Vail Lake area, Kolb Creek drainage, N extension of Woodchuck Road, north of Hwy 79 489 Comment
  UCR20718  Nemacladus ramosissimus A. C. Sanders, Steve Boyd 1980-5-2 1438 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  JOTR32017  Nemacladus rubescens La Doux, Tasha, T. Herskovits, M. Harding 2011-4-21 2247 Riverside Joshua Tree National Park. Pinto Basin, south of Sand Hill; wide, sandy wash draining into Pinto Wash (Stop 3) 476 Comment
  UCR243501  Nemacladus sigmoideus Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21071 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, up side canyon approx. 400 m. west of main canyon drainage 1172 Comment
  RSA524475  Nemophila menziesii Steve Boyd, Tim Ross, L. Arnseth, J. Bonilla 1990-4-3 4079 Riverside Vail Lake area, upper benches and adjacent slopes of the E flank of 'Big' Oak Mountain., just S of the E summit. 610 Comment
  SEINET7067555  Nemophila menziesii A. G. Vestal 1947-6-13 s.n. Riverside About 5.2 miles northeast of De Luz in Sandia Canyon. Coordinate datum: NAD27. Comment
  UCR199  Nemophila menziesii Robert M. Hasegawa 1976-4-5 s.n. Riverside Riverside, University of California campus, 1/8 mi. south of Perimeter Road [South Campus Drive] 274 Comment
  UCR174071  Nerium oleander A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32584 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
  UCD126624  Nicandra physalodes W. W. Winslow Date Unknown s.n. Riverside Ag. Ex. Serv., Riverside. Comment
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Mar 15 2014
  CAS-BOT-BC233451  Nicotiana glauca S. B. Parish 1913-9-20 8622 Riverside Mecca, Salton Sink 57 Comment
  UCR176697  Nicotiana glauca R. D. Goeden 1966-1-20 s.n. Riverside Riverside, UCR Campus, near reservoir 366 Comment
  UCR139387  Nicotiana obtusifolia P. A. Munz 1949-4-13 13059 Riverside Sonoran (Colorado) Desert, above Cottonwood Springs, west end of Eagle Mountains 1143 Comment
  UCR199831  Nicotiana obtusifolia Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11277 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage, within boundaries of U.S. Navy Chocolate Mountains Aerial Gunnery Range 570 Comment
  UCR139647  Nicotiana quadrivalvis A. C. Sanders 2004-6-30 28386 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
  LA29048  Nolina parryi Mary V. Hood; 1939-12-30 39- 160 k* Riverside Palms to Pines Highway 1158 Comment
  RSA78248  Nolina parryi Philip A. Munz, E. K. Balls 1952-8-21 17961 Riverside Hamilton Creek, SE part of San Jacinto Mountains. 1372 Comment
  SDSU12936  Nuttallanthus texanus Jutta Buschbom 1991-10-6 50 Riverside SE-slope, N-Border of the Reserve, beyond an Avocado-grove, ca. 500m (15 min) NW from the fieldstation. Santa Margarita Ecological Reserve, Temecula. Comment
  SEINET11177603  Ocimum gratissimum Unknown 2014-4-10 s.n. Riverside Riverside Comment
  UCSB7334  Oenothera californica subsp. californica Haller, John 1950-5-21 Riverside San Jacinto Mts., near north shore of Hemet Lake Comment
  RSA779628  Oenothera deltoides Duncan S. Bell 2010-4-1 44222 Riverside Arica Mountains: east side of the mountain range, west side of Rice Valley, near the lowest eastern drainage point for the Arica mountains ; approximately 4.3 air miles southeast of the ghost town of Rice. 209 Comment
  UC874003  Oenothera deltoides subsp. deltoides C. L. Hitchcock 1940-4-4 5944 Riverside Pinto Basin Comment
  RSA600664  Oenothera elata subsp. hirsutissima Louis C. Wheeler 1949-8-24 6752 -b Riverside Riverside. Comment
  SDSU13603  Oenothera elata subsp. hookeri W. Miller, C. Mosse 1972-7-13 Riverside Comment
  RSA698253  Oenothera scapoidea J. R. Bruff 1927-3-13 2 -P Riverside Thousand Palms Comment
  RSA399181  Oligomeris linifolia Robert M. Perkins, H. de Forest 1937-3-15 s.n. Riverside 20 miles East of Indio. Comment
  RSA516908  Oligomeris linifolia Steve Boyd, Orlando Mistretta 1986-3-13 1444 Riverside West side Palen Mts.: NE of Desert Center. Comment
  SEINET7259361 Image available Oligomeris linifolia Leila M. Shultz, John S. Shultz 1985-1 5323 Riverside Chuckawalla Mountains at Corn Springs 518 Comment
  JEPS65558  Olneya tesota Marjorie Clary 1931-5-31 313 Riverside Mecca Comment
  POM14222  Olneya tesota Philip A. Munz, D. D. Keck 1922-4-9 4920 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 610 Comment
  POM348471  Olneya tesota Anstruther Davidson 1928-5-1 s.n. Riverside Colorado Desert. Comment
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Dec 14 2015
  UCR260868  Oncosiphon piluliferum A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-3 41562 Riverside Peninsular Range, Eastern Foot of the Santa Ana Mtns., lower Horsethief Canyon Wash just above DePalma Rd. crossing, 1/4 mile NW of Horsethief Canyon Rd. junction 375 Comment
  RSA388330  Opuntia basilaris Steve Boyd 1986-5-7 1834 Riverside Temescal Canyon: Edge of Terrace escarpment between Horsethief wash and Indian Truck Trail, south of I-15. Comment
  CAS-BOT-BC56209  Opuntia basilaris var. basilaris L. R. Abrams 1926-3-27 11215 Riverside Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC58055  Opuntia basilaris var. basilaris D. A. Johansen; J. A. Ewan 1932-4-10 7061 Riverside Field redacted by CAS, contact the data manager for more information Comment
  UC403457  Opuntia chlorotica Munz and Johnston 1922-5-20 5571 Riverside near Kenworthy (mouth of creek, coastal drainage of mts.); San Jacinto Mountains, Thomas Valley, Pipe Creek 1371 Comment
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Mar 13 2011
  RSA696232  Opuntia echinocarpa Keith E. Hoffmaster 1933-4-13 s.n. Riverside Palm Springs. Comment
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Aug 27 2011
  RSA22794  Opuntia parryi C. B. Wolf 1939-2-24 9491 Riverside 2.4 miles north of Aguanga on road to Anza. 762 Comment
  RSA439548  Opuntia ramosissima B. C. Templeton 1965-04 10526 Riverside Joshua Tree. Comment
  POM59001  Opuntia vaseyi L. R. Abrams 1908-07 s.n. Riverside Elsinore. Comment
  RSA539202  Orcuttia californica D. E. Bramlet 1992-4-29 2253 Riverside San Jacinto Valley, 8 km SW of Hemet, NW of the intersection of California Ave. and Stowe Rd., c. 250 ft. north of Stowe Rd. and c. 350 ft. west of California Ave. 456 Comment
  RSA544429  Orcuttia californica Timothy S. Ross, David Zippin, Tom Oberbauer 1991-6-14 6335 Riverside Skunk Hollow area, 2 mi east of Murrieta Hot Springs, just west of second San Diego aqueduct. Comment
  UC489212  Oreostemma alpigenum var. andersonii C. V. Meyer 1928-7-31 600 Riverside Tahquitz Valley , San Jacinto Mts. 2286 Comment
  SEINET10723433  Oreostemma alpigenum var. andersonii David B. Dunn 1946-8-17 Dunn 2693 Riverside Damp meadow area grassy, near the stream at the camp in Taquitz Valley, San Jacinto Mts. 2438 Comment
  UC1539723  Orobanche cooperi Chas. B. Fiker 1946-4-17 Riverside w side of Colorado Desert Colorado Desert; w side of Colorado Desert Comment
  UCR168362  Orobanche cooperi C. B. Wolf 1932-4-29 3113 Riverside Eastern Sonoran (Colorado) Desert, 4 mi south of Browns Well on Blythe to Rice Road 213 Comment
  CLARK-A1045-69  Orobanche fasciculata George K. Helmkamp 1978-5-18 Riverside San Jacinto Mountains near Kenworthy Forest Station; ; ; southeast 1/4 Idyllwild 15'Q; Butterfly Peak 7.5' Q 1371 Comment
  SEINET188370  Orobanche ludoviciana var. latiloba C. L. Hitchcock 1940-4-4 5940 Riverside Pinto Basin. Comment
  RSA523513  Orthocarpus purpurascens Steve D. Boyd, Tim S. Ross, L. Arnseth 1990-3-30 3972 Riverside Vail Lake area, valley between Black Hills and Rocky Ridge. 701 Comment
  JEPS38571  Osmadenia tenella W. L. Jepson 1901-5-31 1556 Riverside Walter's Ranch Temescal Wash Comment
  UCR95212  Osteospermum ecklonis D. L. Banks, E. H. Banks 1996-5-2 953 Riverside Agua Tibia Mountains, NW Palomar Mountains; NW foothills of Dorland Mtn, S end of Los Caballos Road, University of California-Emerson Oaks Reserve, at the Emerson Cottage 524 Comment
  UCR165202  Oxytheca caryophylloides Margaret Bornyasz 2003-8-7 s.n. Riverside Peninsular Ranges, San Jacinto Mtns. Banning/Idyllwild Road 243, 0.9 mi N of Vista Grande Guard Station 1425 Comment
  UC597594  Oxytheca emarginata Philip A. Munz 1937-5-30 15081 Riverside nw slope of Santa Rosa Mts. Santa Rosa Mts. 2133 Comment
  UCR207698  Oxytheca trilobata Justin M. Wood, Brandy N. Wood 2009-6-13 894 Riverside San Jacinto Mountains, Idyllwild County Park, Lily Creek and adjacent slope to west of campground 1616 Comment
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Nov 30 2009
  SEINET10473921  Palafoxia arida Chris Dietrich, Mary Merello; Heidi H. Schmidt 1994-4-13 Dietrich 28 Riverside 7.5 miles south of North Shore on State Highway 111. Along highway on east shore of Salton Sea. Sandy beach soil with creosote bush common. 40 Comment
  UCR124639  Palafoxia arida B. C. Templeton, I. W. Clokey 1930-4-9 1006 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  UCR90264  Palafoxia arida F. M. Reed 1917-5-19 3843 Riverside Western Colorado Desert, Region of Palm Springs Canyon, mesa south of Palm Springs village 152 Comment
  POM363740  Palafoxia arida var. arida B. C. Templeton 1931-4-9 s.n. Riverside North of Palm Springs Comment
  RSA587723  Palafoxia arida var. arida E. R. Blakley 1993-5-20 7566 Riverside W of roadside rest area at jct of Hwy 19 and road S to Wiley's Well, ca 15 mi W of city of Blythe Comment
  CLARK-A1045-224  Panicum urvilleanum George K. Helmkamp 1978-4-1 Riverside Coachella Valley .5 miles south of Interstate highway 10; sandy slope along Bob Hope Drive; Cathedral City 7.5'Q Comment
  SD237635  Parietaria hespera A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37746 Riverside Peninsular Range: Alberhill, south foot of the Gavilan Hills at Temescal Canyon, north of I-15 and Concordia Ranch Road, 1.65 mi. ESE of Corona (Lee) Lake, 0.5 mi NE (25a^z)of Temescal Canyon Road where it goes under I-15 (Alberhill 7.5'Q) 404 Comment
  GMDRC3550  Parietaria hespera var. hespera J. Andre, T. La Doux 2009-2-25 10811 Riverside Chuckwalla Mountains: growing on rocky (granitic) north-facing slope, approx 0.5 mi. south of I-10 freeway at Eagle Mtn Rd exit, USGS 7.5 min. Quad: Desert Center 33 deg. 41.303' N 115 deg. 27.236' W. Elev. 1358 ft. 414 Comment
  RSA678338  Parietaria hespera var. hespera Steve D. Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10475 Riverside East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  UC495207  Parietaria hespera var. hespera Philip A. Munz 1932-3-14 12011 Riverside Magnesia Canyon; Coachella Valley 91 Comment
  UCR101838  Parietaria hespera var. hespera B. G. Pitzer 1997-4-1 3062 Riverside Lakeview Mtns, c. 0.75 air mi. SSW of Mt. Rudolph, c. 1 air mi NE of Contour (Juniper Flats) Rd. 655 Comment
  UCR260591  Parietaria hespera var. hespera A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-1 41551 Riverside Peninsular Range, Eastern Foot of Santa Ana Mtns., opposite So. Cal. Edison Ivy Glen Substation, Temescal Valley at mouth of Mayhew Canyon, west of the I-15 crossing of Temescal Canyon Rd., north of massive mining operation, 0.6 km SE (101 deg. ) of Temescal Fire Station 329 Comment
  UCR67370  Parietaria hespera var. hespera Steve Boyd, T. S. Ross, L. Arnseth 1990-3-30 3965 B Riverside Peninsular Range, Vail Lake area, westerly draining canyon at N base of 'Big' Oak Mtn. 674 Comment
  UCR35007  Parkinsonia aculeata L. B. Ziegler 1974-6-28 529 Riverside San Jacinto Valley 473 Comment
  UCR166533  Parkinsonia florida Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10894 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  UCR272649  Parkinsonia florida Cheryl Sevilla, Sarah J. De Groot, Forrest D. Freund 2015-4-1 072 Riverside Sonoran (Colorado) Desert, Coachella Valley, Santa Rosa Mountains, suth of La Quinta, north of Devil Canyon, 2.5 miles west of Lake Cahuilla 136 Comment
  RSA700041  Parosela mollis W. Marquart 1938-3-12 s.n. Riverside 10 miles west of Blythe. Comment
  SD236442  Parthenocissus vitacea A. C. Sanders, D. L. Sanders 2008-9-27 36104 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 164 Comment
  RSA343107  Paspalum dilatatum R. F. Thorne, Walter Wisura, Earl Lathrop, Sara Meury 1985-5-18 60646 Riverside Santa Rosa Plateau: Mesa de Colorado 625 Comment
  RSA595269  Paspalum dilatatum D. L. Banks, Victor Steinmann 1996-4-20 902 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve. 487 Comment
  RSA0104080  Pectis papposa Duncan S. Bell, Evan Meyer 2014-10-28 7664 Riverside Santa Rosa Mountains; at the foot of the mountains between Toro Canyon and Martinez Canyon. 169 Comment
  SBBG8647  Pectis papposa H. and M. Dearing 1939-11-12 4027 Riverside E of Palm Springs Comment
  SEINET3828350  Pectis papposa Amber Swanson, Linda Jean Foster 2011-1 643 Riverside Washes in the Little Santa Maria Wilderness W of Midland/Blythe-Rice Rd. 272 Comment
  HSC82816  Pectocarya heterocarpa A. C. Sanders, B. Pitzer, D. Charlton 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct 427 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
  UCR107406  Pectocarya linearis B. G. Pitzer 1997-3-23 2991 Riverside Perris-Aguanga Basin Region, Lakeview Mtns, c. 1 air mi. SSW of Mt. Rudolph, along powerline road 0.3 mi. east of Contour (Juniper Flats) Rd. 610 Comment
  UCR256745  Pectocarya linearis T. B. Salvato, Matthew Malle 2013-4-11 7534 Riverside Gavilan Hills, southeastern slopes, hill above Black Powder Canyon and c. 0.5 mi north of the Temescal Canyon 419 Comment
  RSA695835  Pectocarya penicillata J. Russell Bruff 1934-6-19 550 -a Riverside Near Hemet Reservoir Comment
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Dec 11 2011
  UCR241683  Pectocarya penicillata T. B. Salvato 2013-3-22 7408 Riverside Perris-Aguanga Basin, southern end of Menifee Valley, between Hwy 215 and Winchester Rd (Hwy 79), south of Los Alamos Rd, rocky slopes flanking Warm Springs Creek 396 Comment
  UCR91864  Pectocarya penicillata A. C. Sanders, S. Hawkins 1996-4-24 18081 Riverside San Bernardino Mtns, Morongo Indian Reservation, SE edge of Burro Flats in vicinity of natural pond & bog 1159 Comment
  JOTR34344  Pectocarya platycarpa Andre, Jim 2012-4-11 20691 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
  CLARK-A1045-298  Pectocarya recurvata George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q Comment
  UCR139715  Pectocarya recurvata B. G. Pitzer 1989-4-16 1306 A Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, just outside impact area, 1 km south of Tabaseca Tank 700 Comment
  VVC696  Pectocarya recurvata P. J. MacKay, T. Thomas 1997-2-8 99 Riverside Colorado Desert, Palm Springs, Tahquitz debris basin mouth of Tahquitz Canyon Comment
  UCSB41268  Pectocarya setosa Cowan, Clark 1978-4-23 Riverside 17.3 mi. (27.2 km.) S and W on Hwy. 74 from jct. with 111 at Indian Wells; Santa Rosa Mts.; San Berndo. Nat. Forest; Whittaker transect #W-221 1180 Comment
  RSA401953A  Pedicularis densiflora E. Crow 1929-4-7 304 Riverside Corona Skyline Drive, Santa Ana Mts. Comment
  RSA593986  Pelargonium panduriforme D. L. Banks, Elizabeth Hedge Banks 1996-5-2 954 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve, at the Emerson Cottage. 524 Comment
  UCR121313  Pellaea andromedifolia A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-22 25005 Riverside The Badlands, summit of Mt. Eden, SW of Beaumont 671 Comment
  UCR145568  Pellaea andromedifolia Robert Whittaker, W. A. Niering 1963-5-28 SJ- 37 Riverside San Jacinto Mountains, Mountain Center to Hemet Hwy 976 Comment
  SFV62  Pellaea bridgesii J. H. Wood 1958-5-30 s. n. Riverside San Jacinto Mountains 1829 Comment
  CAS-BOT-BC71397  Pellaea mucronata Nancy Ryan Zabriskie; Walter Zabriskie 1971-4-9 362 Riverside Deep Canyon, south of Hwy. 74, c. 2 miles up water service road, north slope Santa Rosa Mountains 1310 Comment
  POM50384  Pellaea mucronata var. mucronata W. W. Eggleston 1924-3-10 19533 Riverside San Jacinto Station, Cleveland Forest 600 Comment
  UC495186  Pellaea mucronata var. mucronata P. A. Munz 1932-4-24 12393 Riverside Snow Creek Canyon; San Jacinto Mts 457 Comment
  RSA0050332  Pennisetum setaceum Lynn Sweet, Chris E. True 2009-12-3 s.n. Riverside Peninsular Range/ Sonoran Desert; Santa Rosa Mtns.: UC Boyd Deep Canyon Reserve, center of wash in Deep Canyon. 335 Comment
  RSA0086590  Penstemon antirrhinoides Bonnie C. Templeton 1930-4-15 1100 Riverside Perris - Gavilan Peak. 607 Comment
  SD28111  Penstemon bridgesii Carl B. Wolf 1932-8-4 3908 Riverside San Jacinto Mts. Point View, near Idyllwild 1646 Comment
  UCR139250  Penstemon californicus A. C. Sanders, Kate Kramer 2003-6-11 26880 Riverside San Jacinto Mtns., Garner Valley, foothills on the northeast side of the valley, near Morris Ranch Rd. c. 0.25 mi. NW of Kenworthy Ranger Station 1377 Comment
  UC1043379  Penstemon centranthifolius Richard M. Straw 1953-6-25 488 Riverside Santa Rosa Mountain Road , Santa Rosa Mountain Road (from Palms to Pines Hwy) 1676 Comment
  UCR135733  Penstemon centranthifolius Mitch Provance, Kerry Knudsen, Petra Wester 2004-5-8 9017 Riverside Santa Rosa Mtns., c. 0.05 miles S on Santa Rosa Mt. Road from Hwy 74 1402 Comment
  UCR110969  Penstemon clevelandii George K. Helmkamp 1998-6-27 4105 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
  POM20635  Penstemon clevelandii subsp. mohavensis E. C. Jaeger 1923-5-20 s.n. Riverside Keyes Ranch Comment
  NY583967  Penstemon clevelandii var. connatus E. K. Balls 1953-8-19 18535 Riverside Head of Palm Canyon, where stream crosses Highway 74 on Palms to Pines Highway 1371.6 Comment
  UCSB7487  Penstemon heterophyllus Stoppel, Gordon 1958-5-17 Riverside Along Banning- Idyllwild Highway; about 10 miles SE of Banning Comment
  POM128324  Penstemon labrosus F. M. Reed 1908-7-11 2480 Riverside Meadow in Round Valley 2744 Comment
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Dec 23 2007
  UC454142  Penstemon labrosus I. J. Condit 1910-6-21 Riverside near Idyllwild (San Jacinto Mts.); , near Idyllwild 1584 Comment
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Mar 21 2011
  SEINET4097936  Penstemon spectabilis C. Davidson 1975-1 2805 Riverside About 4 miles south of Banning on road R1 to Idyllwild. 1127 Comment
  UCR3236  Penstemon spectabilis Chuck Elliott 1964-5-5 s.n. Riverside 1 mi past end of Canyon Crest Rd. west in Riverside 305 Comment
  RSA0036468  Penstemon spectabilis subsp. subviscosus J. M. Andre 2012-6-15 30503 Riverside San Jacinto Mountains: Along Hwy 243 at Mt Edna Rd, approx. 1 mi. north of McMullen Flat, 5.9 mi. south of Interstate 10 at Banning; SB Natl. Forest. 1171 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
  RSA0097627  Penstemon spectabilis var. subviscosus Marc A. Baker, Cecile Shohet, Melissa Fowler 2015-4-17 18328 .1 Riverside South end of Banning Bench.2.4 km NW of central Banning, 51 km east of central Riverside. 912 Comment
  RSA674603  Pentachaeta aurea Scott D. White 2000-8-5 8097 Riverside San Jacinto Mountains: Near Mountain Center. Unnamed ephemeral drainage (tributary to S Fork, San Jacinto River). 1402 Comment
  UCSB62280  Pentagramma triangularis subsp. maxonii Keifer, L. 1963-3-23 Riverside San Jacinto Mtns., Tahquitz Cyn., ca. ; 1 1/2 miles above falls 457 Comment
  SFV21856  Peritoma arborea J. R. Pucci 2001-3-10 2 Riverside San Jacinto Mountains Chino Canyon. Along abandoned road off north side of Tramway Road, 2 miles west of Highway 111. 425 Comment
  JOTR32165  Peritoma arborea var. angustata La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2317 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Large sandy canyon with braided wash that feeds southwest into Wilson Canyon (Stop 7) 902 Comment
  POM19633  Perityle emoryi Mary F. Spencer 1923-6-5 2213 Riverside Soboba Hot Springs, near San Jacinto. 549 Comment
  RSA0118595  Perityle emoryi Sarah J. J. De Groot, Cheryl Sevilla 2016-3-16 7646 Riverside Mecca Hills: hills around Shaver's Well, along Box Canyon Road; south edge of Shaver's Valley, east-northeast of Mecca. 294 Comment
  SBBG25004  Perityle emoryi D. Myrick 1966-4-5 1383 Riverside near S entrance of Joshua Tree Nat Monument Comment
  SEINET201068  Perityle emoryi H. E. Parks Riverside Mouth of Santa Rosa Canyon near Indio. Comment
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Mar 20 2014
  SEINET9315412  Perityle emoryi Unknown 1938-12-22 38337 Riverside San Jacinto Mountains Comment
  CAS-BOT-BC167760  Petalonyx thurberi Marian L. Campbell 1921-3-20 26 a Riverside Palm Springs Comment
  CAS-BOT-BC167774  Petalonyx thurberi L. R. Abrams 1926-3-26 11106 Riverside Between Edom and Garnet east of San Gorgonio Pass Comment
  RSA264432  Petalonyx thurberi C. W. Tilforth, Jeff Barnes 1976-7-21 1223 Riverside Along Hwy 195 in large sandy wash, 15 miles NE of Mecca Comment
  RSA220393  Peucephyllum schottii C. W. Tilforth, John Dourley 1971-4-15 347 Riverside Ca. 7 miles NNE of Desert Center, Valley floor SE of Eagle Mountains. Comment
  RSA471969  Peucephyllum schottii Robert Gustafson 1981-4-7 2149 Riverside Salt Creek Wash, southern end of the Orocopia Mts. 91 Comment
  UCR265843  Phacelia Mitch Provance 2012-5-24 512- 27 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
  RSA657245  Phacelia ambigua J. Mark Porter 2001-4-2 12344 Riverside Coachella Valley, Desert Hot Springs, S of Big Morongo Wash, along Indian Ave, just S of the jtn. with Pierson Avenue. 396 Comment
  RSA791582  Phacelia ambigua var. minutiflora D. Silverman, Onkar Singh 2010-3-27 8056 Riverside North edge of Palo Verde Mesa, 150 m south of McCoy Wash, 5.3 km WSW of Mesaville Siding, and 6.1 km north of Blythe Airport. 137 Comment
  POM122680  Phacelia brachyloba Marcus E. Jones 1924-8-29 s.n. Riverside Idyllwild, San Jacinto Mountains. Comment
  POM13112  Phacelia brachyloba P. A. Munz, I. M. Johnston 1922-5-19 5344 Riverside 5 mi. E of Murrieta. 488 Comment
  RSA314616  Phacelia campanularia Robert F. Thorne 1983-4-23 55465 Riverside San Bernardino Mountains: side canyon on W side of Whitewater Canyon, ca. 3.3 miles N of Whitewater post office. 595 Comment
  RSA427686B  Phacelia cicutaria var. hispida Ora M. Clark 1929-3-17 1766 Riverside San Andreas Canyon [Riverside Co.?] Comment
  UC73692  Phacelia cicutaria var. hispida Miss M. A. King 1893-1 Riverside Menifee Comment
  UCR180136  Phacelia cicutaria var. hispida Mitch Provance 2003-4-26 9886 Riverside Santa Ana River Valley, northern extreme of the La Sierra Hills, on the N-facing slopes and ridges just south of Crestlawn Memorial Cemetery 427 Comment
  UCR214569  Phacelia cicutaria var. hispida A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37850 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, along dirt extension of Lake St., 0.93 mi. north (03 deg. ) of intersection of I-15 and Lake St. 469 Comment
  UCR120812  Phacelia ciliata Ian G. Gillespie, Steve Boyd 2000-4-15 3 Riverside Lake Mathews, Drainage on E side of Monument Peak 488 Comment
  SFV5027  Phacelia crenulata 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
  JOTR35216  Phacelia crenulata var. crenulata La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 3640 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; west Pinkham Wash (Stop 2) Comment
  JEPS1534  Phacelia curvipes W. L. Jepson 1901-5-24 1421 Riverside Vandeventer Flat Santa Rosa Mts., Van de Venter's Ranch Comment
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Jun 19 2011
  UC1234771  Phacelia curvipes Peter H. Raven 1962-5-18 17756 Riverside 0.6 mi e Santiago Peak (road to Indian Hill Canyon); Santa Ana Mountains 1615 Comment
  RSA0124117  Phacelia distans Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8743 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting on the Martinez Slide to the north of Toro Canyon, approximately 5.25 air miles east northeast of the summit of Martinez Mountain. 123 Comment
  UC1608255  Phacelia distans Steve Boyd and Orlando Mistretta 1992-4-23 7069 Riverside along creek from Riverside Co. line to confluence with Bluewater Canyon (following San Mateo Trail upstream); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 243 Comment
  UC494555  Phacelia distans Philip A. Munz 1932-3-14 11973 Riverside along wash of Deep Canyon Coachella Valley 91 Comment
  UCR115934  Phacelia distans Mitch Provance 1998-4-7 1777 Riverside Pedley Hills, E side of Camino Real, c. 0.5 miles south of Jurupa Road, in the areas of Pedley/Glen Avon 396 Comment
  RSA428080  Phacelia minor Robert Gustafson 1983-4-18 2503 Riverside Clinton Keith Rd. about 2.5 miles from its junction with Hwy 15, eastern slopes of the Santa Ana Mtns. 457 Comment
  RSA523477  Phacelia minor Steve Boyd, Tim Ross, L. Arnseth 1990-3-29 3937 Riverside Vail Lake area, summit of Big Oak Mtn, N. of lake. 793 Comment
  RSA770683  Phacelia minor Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4799 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 610 Comment
  UC1069361  Phacelia minor A. Lewis Mar 1934 327 Riverside Bedford Canyon Corona Quadrangle 335 Comment
  UCR162879  Phacelia minor T. B. Salvato, Kelly Volansky 2003-3-27 123 Riverside Santa Ana Mtns, foothills at edge of Temescal Valley, development called 'Trilogy at Glen Ivy,' between Bixby and Brown Canyons 396 Comment
  UCR167818  Phacelia minor A. C. Sanders 2005-4-21 29578 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UCR214899  Phacelia neglecta A. C. Sanders 2010-3-23 37528 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at SW foot of Palen Mtns. 140 Comment
  UCR22110  Phacelia ramosissima Steve Boyd 1980-5-15 280 Riverside Gavilan Hills, Harford Springs County Park, northwest corner of the Gavilan plateau 625 Comment
  UCR98690  Phacelia ramosissima 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
  UCR159771  Phacelia ramosissima var. latifolia Scott D. White 1999-5-24 7374 Riverside Peninsular Ranges/ Perris-Aguanga Basin, Perris/Sun City area: just east of Goetz Rd. and south of Ethanac Rd., c. 1.5-2 mi west of the I-215 freeway 473 Comment
  CDA40393  Phacelia ramosissima var. suffrutescens T. C. Fuller 1964-4-14 11830 Riverside On disturbed cut above road, Whitewater Canyon, 4.1 miles north of Whitewater. 0 Comment
  UCR114539  Phalaris aquatica A. C. Sanders, K. C. Rose 1999-6-18 22807 Riverside Skinner/Domenigoni area, French Valley, E side of Washington Ave. near Rawson Rd. 451 Comment
  UCR76159  Phalaris minor A. C. Sanders 1993-4-1 76159 Riverside Perris-Aguanga Basin Region, western edge of Hemet, 14 acre parcel at NE corner of intersection of Myers St. and Devonshire Ave., 0.75 mile NE of the intersection of Florida Ave (Hwy 74) and Warren Rd, just south of Tres Cerritos 460 Comment
  RSA525330  Phalaris minor Steve Boyd, A. C. Sanders, M. Skinner 1990-4-28 4461 Riverside Vail Lake area, Hwy R3 (Sage Rd) at jct. with Powerline Rd., N of Radec about 3 miles NE of Vail Lake Comment
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Feb 22 2013
  POM14421  Phleum alpinum P. A. Munz 1922-7-6 6014 Riverside Tahquitz Valley, San Jacinto Mountains. 2195 Comment
  UCR2663  Phleum pratense F. M. Reed 1903-12-10 224 Riverside San Bernardino Valley/Upper Santa Ana River region, Riverside, Terraces Ranch [547 Chicago Ave., near Arroyo Tequesquite] 305 Comment
  RSA40604  Phlox austromontana J. C. Roos 1946-8-27 2922 Riverside Santa Rosa Mountains. 2287 Comment
  UCR35056  Phlox austromontana L. B. Ziegler 1972-5-4 450 Riverside San Jacinto Mountains, near and above Morris Ranch area 1524 Comment
  CAS-BOT-BC135109  Phoradendron californicum Walton H. Clark 1926-6-1 s.n. Riverside Indio Comment
  SD212753  Phoradendron californicum A. C. Sanders, J. Andre, et al. 2005-2-26 29129 Riverside Southeast of Highway 177 toward dunes above Palen Dry Lake, southeast end of Coxcomb Mountains. 167 Comment
  UCD84929  Phoradendron californicum Chuck Hughes 2010-3-22 201 Riverside Edge of Rice-Midland Road. 268 Comment
  RSA717208  Phoradendron densum A. C. Sanders 2004-4-2 27429 Riverside Peninsular Range: Temescal Canyon, Serrano Highlands project, between Glen Ivy Hot Springs and Arcilla, NE side of the I-15 Fwy, south of Clay Canyon Rd. 305 Comment
  UCR94257  Phoradendron macrophyllum Scott D. White 1996-4-14 3916 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
  UCR138810  Phoradendron villosum D. L. Banks, J. Moreno 1997-2-5 1254 Riverside Agua Tibia Mtns., NW Palomar Mountains: Pechanga Indian Reservation, along Magee Truck Trail between the headwaters of Pala Creek at the southern extremity of the Reservation to the Riverside/San Diego County line border 482 Comment
  RSA594133  Phyla nodiflora var. nodiflora D. L. Banks, Victor W. Steinmann 1996-4-20 899 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve. 524 Comment
  SEINET270228  Physalis angulata G. Helmkamp 1996-1-18 8 -1 Riverside About 2 miles northeast of Blythe 91 Comment
  PASA2143  Physalis crassifolia F. Brubaker, M. Stason 1928-3-3 Riverside Hidden Springs Comment
  POM118489  Physalis crassifolia Marcus E. Jones 1924-2-26 s.n. Riverside Shaver's Well. Comment
  POM4167  Physalis crassifolia I. M. Johnston 1917-4-4 s.n. Riverside Andreas Canon. 274 Comment
  RSA339340  Physalis crassifolia Robert F. Thorne, W. A. Tilforth 1980-5-28 54195 Riverside W-facing slope of Whitewater ridge above old bridge. San Bernardino Mtns. Comment
  UCSB22459  Physalis crassifolia Shaw, Merrilee 1964-4-5 Riverside wash of Box Canyon, 7.3 miles northeast of State Highway 111 at Mecca 106 Comment
  UC146429  Physalis philadelphica Miss Kate Conger before Oct 1909 Riverside Winchester Comment
  LA6050  Pinus contorta subsp. murrayana A. H. Lange; 1951-5-27 sn Riverside San Jacinto Mountains, Tauquitz (Tahquitz) Peak 2133 Comment
  UC2015654  Pinus jeffreyi A. C. Sanders 1995-11-26 17924 Riverside Tule Creek Valley, NE of Tule Pk, between Aguanga & Anza, S of Hwy 371. Old house site on Tule Peak road, 0.7 mi. of Bonny Lane, sec.14. Comment
  CAS-BOT-BC73140  Pinus lambertiana S. B. Parish; W. F. Parish 1881-1-1 383 Riverside San Jacinto Mts. Comment
  JEPS47921  Pinus lambertiana W. L. Jepson 1903-8-5 2264 Riverside Strawberry Valley San Jacinto Mt., Strawberry Valley 1737 Comment
  CDA18000  Pinus monophylla L. D. Merrill 1999-8-27 s.n. Riverside Cactus Springs Trailhead, Santa Rosa Mtns. 0 Comment
  NY42657  Pinus quadrifolia J. B. Walker 1995-3-28 1289 Riverside This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC333509  Pinus quadrifolia H. M. Hall May 1899 Riverside West side El Toro Mountain; San Jacinto Mountains Comment
  CDA36023  Pistia stratiotes Dave Goodward 2010-10-6 s.n. Riverside Sonoran (Colorado) Desert; Thermal, 89635 Ave. 81, west of Hwy 86 and Harrison St. Comment
  UCR147039  Plagiobothrys arizonicus L. C. Wheeler 1976-3-30 s.n. Riverside San Jacinto Mtns, Falls Creek, north side of Mount San Jacinto 549 Comment
  UCR98005  Plagiobothrys arizonicus George K. Helmkamp, E. A. Helmkamp 1997-3-5 1332 B Riverside 2.8 mi SE of Gilman Hot Springs 518 Comment
  RSA528104  Plagiobothrys canescens Scott D. White 1991-4-10 91 -68 Riverside Diamond Valley area, ca. 1/2 mi. E of Mica Butte, & S of Cactus Valley Road 518 Comment
  SEINET272294  Plagiobothrys canescens A. C. Sanders 1997-3-1 19730 Riverside Box Springs Mins: Pigeon Pass cyn below Regulus Rd 0.6 mi W of Pigeon Pass Rd. 0.4 mi E of Bench Mark Table. UTM 10km 610 Comment
  UCR232029  Plagiobothrys canescens John F. Green 2008-4-15 0408- 01 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
  OBI53611  Plagiobothrys collinus Steve Myers 1988-1 s.n. Riverside Temescal Cyn, ca 1/4 mi W of intersection of hwy I-15 and Indian Truck trl 381 Comment
  RSA0042972  Plagiobothrys collinus var. fulvescens A. C. Sanders, Timothy W. Chumley 2013-4-2 40735 Riverside Temescal Canyon at west side of Horsethief Canyon Rd., south of I-15 Fwy, SE of Corona (Lee) Lake 390 Comment
  RSA639627  Plagiobothrys fulvus var. campestris R. F. Thorne, M. Z. Thorne, Walter Wisura 1978-5-21 51976 Riverside Santa Rosa Plateau: Mesa de Colorado 610 Comment
  RSA659623  Plagiobothrys leptocladus J. C. Roos 1952-4-23 5572 Riverside 1 miles southeast of Perris. 427 Comment
  UCR281234  Plagiobothrys leptocladus Mitch Provance, Jeremiah George 2017-3-23 317- 68 Riverside Elsinore Trough, Lake Elsinore, E side Baker St., about 0.5 miles SE of Pierce St. 677 Comment
  UCR281255  Plagiobothrys leptocladus Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-3-29 317- 30 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
  CLARK-A1045-64  Plagiobothrys nothofulvus George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains head of De Luz Creek; Wildomar 7.5'Q Comment
  RSA496130  Plagiobothrys tenellus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-18 3009 Riverside Vail Lake area, low hills west of Kolb Creek arm of lake. 488 Comment
  UC473484  Plagiobothrys tenellus John Thomas Howell 1930-5-10 4804 Riverside sandy plateau at top St. John's Grade Comment
  UCR20739  Plagiobothrys tenellus A. C. Sanders, Steve Boyd 1980-5-2 1407 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  SBBG54322  Plagiobothrys undulatus C. Davidson 1977-5-25 5641 Riverside Mesa de Burro, Santa Rosa Plateau 701 Comment
  CLARK-A1528-3434  Plantago erecta John C. Roos 1937-3-5 1300 Riverside La Sierra Comment
  RSA769497  Plantago erecta Justin M. Wood 2010-3-19 1425 Riverside Beaumont: Near Smith Creek, E of Sun Lakes off S Highland Home Rd. 747 Comment
  SEINET1910853  Plantago erecta A. C. Sanders 1997-1 19846 Riverside Lake Skinner area: lower Rawson Canyon, along road NE of Skinner Lake 457 Comment
  UCR150973  Plantago erecta D. L. Banks 1997-3-29 1589 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
  UCR228908  Plantago erecta A. C. Sanders 2011-4-7 39035 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, between Horsethief Canyon and Glen Eden, along I-15 Frontage Rd., SE of Lee Lake, near canyon crossing at Glen Eden 384 Comment
  SD227866  Plantago lanceolata Scott D. White 1997-5-18 5157 Riverside Vista Grande area: Just W of USFS Vista Grande Fire Station (i.e. Hwy 243 ca. 10 road miles SE of Banning). 1477 Comment
  JEPS7190  Plantago ovata S. B. Parish 1912-10-23 8342 Riverside Mecca Salton Basin -57 Comment
  RSA0021552  Plantago ovata Duncan S. Bell 2012-3-4 3136 Riverside Arica Mountains; along old railway line about 4.5 air miles south of the ghost town of Rice. 217 Comment
  SEINET4568275 Image available Plantago ovata Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4594 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  UCR103575  Plantago ovata George K. Helmkamp 1998-1-17 2527 Riverside Coachella Valley, Bob Hope Drive, 0.9 mi south of Hwy I-10 43 Comment
  UCR172222  Plantago ovata 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
  UC1922710  Plantago ovata Michael Honer with L. Hulse 2004-4-4 1928 Riverside Colorado Desert; Little San Bernardino Mountains region: SW base of Cottonwood Mtns., near MWD aqueduct, appx. 0.75 mi. N of I-10. E edge of Pinkham Wash. Comment
  POM184046  Plantago ovata var. fastigiata P. A. Munz 1932-3-14 12001 Riverside Deep Canyon, Coachella Valley 91 Comment
  RSA596529  Plantago ovata var. fastigiata D. L. Banks 1996-7-16 1130 Riverside NW Palomar Mountains; Agua Tibia Mountains; In the Vail Ranch Housing Development, N of the Pechanga Indian Reservation; At the W side of the intersection of Marge Place and Tehachapi Pass( N of Vail Ranch Road)., Along a disturbed hillside and adjacent roadside 427 Comment
  JEPS83148  Plantago patagonica R. P. Allen 1935-3-25 266 Riverside Pinto Basin Comment
  UCR90372  Plantago patagonica D. L. Banks, Steve Boyd 1995-5-3 0293 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
  POM13874  Platanthera leucostachys E. C. Jaeger 1921-7-12 1169 Riverside Deer Springs. San Jacinto Mountains. Comment
  RSA494648  Platanus racemosa B. L. Phillips 1988-6-2 s.n. Riverside E Riverside, near Creek on W side of Box Springs Mt. Comment
  RSA777162  Platanus racemosa Steve Boyd, Robert L. Allen 2005-9-25 11658 Riverside Chino Canyon, southern base of the range, western margin of Chino Creek along upper end of main parking lot at Valley (lower) station of the Palm Springs Aerial Tramway. 793 Comment
  UCR126439  Platystemon californicus T. B. Salvato, A. C. Sanders, Mitch Provance et al. 2000-4-30 66 Riverside Riverside, Box Springs Mtns. along road to radio towers from reserve parking lot 854 Comment
  UCR167417  Platystemon californicus John F. Green 2005-3-16 s.n. Riverside Perris-Aguanga Basin, Cajalco Canyon, SE of Corona, SW of Lake Mathews, east of Calif. highway 71; Collections made while monitoring pipeline repair 366 Comment
  RSA560375  Plectritis ciliosa subsp. insignis Steve D. Boyd 1992-4-14 6807 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of Oak Flats area along Bluewater Tributary from Verdugo Tributary S to crest of ridge W side Bluewater Canyon. 732 Comment
  POM192667  Pleuraphis rigida Marcus E. Jones 1929-9-16 24755 Riverside East of Desert Center. Comment
  RSA575737  Pleuraphis rigida S. J. Darbyshire, J. Cayouette 1994-9-17 4635 Riverside Chuckwalla Valley 30 mile E [of] Desert Center, Highway 10 rest area. 90 Comment
  POM123019  Pleurocoronis pluriseta Marcus E. Jones 1926-6-8 s.n. Riverside Whitewater. Colorado Desert. Comment
  RSA676256  Pleurocoronis pluriseta Scott D. White 2001-4-17 8334 Riverside Sonoran Desert: Shaver's Valley. North of the I-10 Freeway, ca. 16 miles east of Indio jtn. I-10 / SR 111. Bajada, washes, and mtn. foothills near powerline access roads at unnamed freeway exit accessing pump station. 457 Comment
  RSA472128  Pluchea sericea M. B. Dunkle 1933-5-6 3430 Riverside Canyon N of Catherdral Canyon Comment
  UCR111600  Pluchea sericea Mitch Provance 1998-4-8 1775 Riverside City of Riverside, Arroyo Tequesquite, NE side of proposed 'Andulka Park' just west of the corner of Chicago and Central Avs. 305 Comment
  RSA653711  Poa annua Scott D. White 2000-3-23 7636 Riverside Coachella Valley, Thousand Palms area: N terminus of Rio del Sol Road at intersection with Vista Chino. Proposed aggregate mine expansion. 152 Comment
  UC38599  Poa pratensis subsp. pratensis H. M. Hall July, 1901 Riverside Fuller's Mills Mts; San Jacinto Mts 1584 Comment
  LA12514  Poa secunda subsp. secunda F. M. Reed; 1908-7-10 2554 Riverside San Jacinto Mountains, Round Valley 2743 Comment
  POM19164  Polygala cornuta var. fishiae P. A. Munz 1923-6-18 7127 Riverside Temecula Canyon. Comment
  SD126503  Polygala cornuta var. fishiae Tom Wendt, E. Lott 1975-6-30 1054 Riverside Santa Ana Mountains, Cleveland National Forest, 2 miles north of entrance to upper San Juan Campground, ca. 0.1 mile east of the Orange County line along Rte. 74 in San Juan Canyon 427 Comment
  UCR189795  Polygala cornuta var. fishiae Diane Menuz 2007-9-13 369 Riverside Peninsular Range, Coastal Foothills Region, Cleveland National Forest c. 1.75 mi north of San Diego County line. San Mateo Canyon c. 0.6 mi southeast of Fisherman's Camp 375 Comment
  UCR16524  Polygonum argyrocoleon John Dean 1965-4-15 s.n. Riverside Sonoran (Colorado) Desert, 0.5 miles south of McCoy Wash mouth 91 Comment
  RSA0013161  Polygonum aviculare LeRoy Gross, Caitlin Elam 2013-5-14 6061 Riverside Garner cattle company (Garner ranch), east of Lake Hemet, and highway 74. West of the ranch's buildings. North of the road to the buildings, and south of the old landing strip. 1332 Comment
  RSA560847  Polygonum aviculare subsp. aviculare Steve Boyd, Tim S. Ross 1992-5-4 716 B Riverside Southern Santa Ana Mountains; San Mateo Canyon Wilderness Area; Oak Flats area E of Verdugo Potrero 732 Comment
  RSA708073  Polypodium californicum Scott D. White, Angelia Carey 2004-4-16 10181 Riverside Indian Creek and adjacent slopes. 549 Comment
  UCR2720  Polypogon australis F. M. Reed 1906-5-5 973 Riverside San Bernardino Valley/Upper Santa Ana River region, Riverside, Terraces Ranch [547 Chicago Ave., near Arroyo Tequesquite] 305 Comment
  UC472732  Polypogon monspeliensis A. S. Hitchcock 1918-3-27 Riverside Colorado Desert Palm Springs; , Palm Springs 100 Comment
  UCR140702  Polypogon monspeliensis A. C. Sanders 2004-5-12 27868 Riverside Elsinore Basin Region, Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek 378 Comment
  IRVC164  Polystichum imbricans subsp. curtum Gale Olander 1965-4-24 HS 547 Riverside Mountains near Hemet. Peninsular Ranges, San Jacinto Mountains Comment
  SEINET10767438  Populus J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12842 Riverside Near White Water, west of Joshua Tree National Park; north of I-10 (just west ofjunction with CA 62) on Whitewater cut-off, then a few kilometers on Whitewater Canyon Road to where it comes closest to the river. Comment
  JEPS64549  Populus fremontii subsp. fremontii S. B. Parish 1912-10-22 8385 Riverside Mecca , Mecca (Salton Basin) -57 Comment
  RSA775493  Populus fremontii subsp. fremontii Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4416 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 487 Comment
  RSA775119  Populus fremontii subsp. fremontii Orlando Mistretta, Duncan S. Bell, Joy D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5029 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010. 732 Comment
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May 22 2012
  PASA1571  Porophyllum gracile Margaret Stason April 1932 Riverside Few miles west of Blythe Comment
  RSA783821  Porophyllum gracile J. D. Olmsted 1959-4-17 396 Riverside 1/4 miles above Fire Gate along Skyline Drive, 5 miles SW of Corona. Santa Ana Mtns to Santa Ana River. 457 Comment
  UC1424872  Porophyllum gracile Robert F. Thorne and R. Carolin 1967-3-21 41644 Riverside Cottonwood Springs Joshua Tree Natonial Monument Comment
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Oct 9 2010
  UCR59181  Portulaca oleracea George K. Helmkamp 1989-9-16 s.n. Riverside Sonoran (Colorado) Desert, S of Ripley at 32nd Street and Rannells Blvd 75 Comment
  UCR94922  Portulaca oleracea Scott D. White 1996-9-22 4534 Riverside Perris Basin, Perris: Nuevo Road, just east of San Jacinto River crossing 435 Comment
  UC170162  Proboscidea althaeifolia E. E. Schellenger 1894-8-20 110 Riverside Paloverde Colorado Desert Comment
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Jan 23 2012
  CAS-BOT-BC206977  Prosopis glandulosa var. torreyana W. R. Dudley 1903-12-27 s.n. Riverside Palm Springs Comment
  CAS-BOT-BC206984  Prosopis glandulosa var. torreyana F. P. Cronemiller 1927-5-11 3016 Riverside Oak Park R.S., Cleveland Forest 762 Comment
  RSA5534  Prosopis pubescens Carl B. Wolf 1932-10-14 4348 Riverside 2 miles south of Coachella -30 Comment
  RSA192112  Prunus E. W. Lathrop 1959-4-16 4455 Riverside 18 miles southwest of Elsinore. Comment
  SEINET10943907  Prunus J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12848 Riverside Near White Water, west of Joshua Tree National Park; north of I-10 (just west ofjunction with CA 62) on Whitewater cut-off, then several kilometers on Whitewater Canyon Road to where it crosses over the river. Comment
  CAS-BOT-BC158289  Prunus fasciculata var. fasciculata N. Dunn; A. M. Martin 1932-3-26 s.n. Riverside Cottonwood Spring Comment
  SD73396  Prunus fremontii Nancy Ryan Zabriskie, Walter Zabriskie 1969-4-2 180 Riverside Upper slopes northwest of end of Andreas Canyon Club Road 487 Comment
  UCR114953  Prunus ilicifolia D. E. Bramlet 1999-4-10 2734 Riverside Bachelor Mountain. North facing slope 152m northwest of the peak on a steep, bouldery face of the mountain and within the large drainage area found on this slope, approximately 1.5km north of Lake Skinner 726 Comment
  UCR155054  Prunus ilicifolia Jason L. Hlebakos 2005-5-30 818 Riverside Peninsular Range, Durasno Valley, SE of Coahuilla Indian Reservation, c. 11 mi east of Bonnie Road, and c. 6 mi SSW of Anza 1402 Comment
  CAS-BOT-BC356341  Psathyrotes ramosissima Fay A. Mac Fadden 1936-3-21 14465 Riverside Northeast shore Salton Sea Comment
  RSA15495  Psathyrotes ramosissima L. S. Rose 1935-12-23 35686 Riverside 7 miles south of Cathedral City 152 Comment
  POM358760  Pseudognaphalium biolettii Ora M. Clark 1929-2-24 1539 Riverside N slope of San Jacinto S of Cabazon Comment
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Nov 9 2011
  RSA342002  Pseudognaphalium biolettii R. F. Thorne, W. A. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54114 Riverside San Bernardino Mountains: Mesquite thicket along Whitewater Canyon road. Comment
  UCR34931  Pseudognaphalium biolettii L. B. Ziegler 1967-8-24 223 Riverside San Jacinto Mtns, San Jacinto Valley. Mission [Avery] Canyon 503 Comment
  CAS-BOT-BC361788  Psilocarphus brevissimus var. 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
  RSA0106712  Psorothamnus emoryi Duncan S. Bell 2011-9-30 2945 Riverside Northeastern section of the Arica Mountains; northwest section of Rice Valley; approx. 2 air miles southwest of the ghost town of Rice. 234 Comment
  UC52161  Psorothamnus emoryi E. E. Schellenger Jul 25 1903-Aug 14 1903 4 Riverside near Palm Springs (Colorado Desert); , near Palm Springs Comment
  HSC99951  Psorothamnus schottii J. P. Smith, & J. O. Sawyer 2011-6-9 13182 Riverside Along Hwy. 74. 972 Comment
  SBBG3320  Psorothamnus schottii H. and M. Dearing 1936-12-25 790 Riverside Thousand Palms Cyn Comment
  SEINET3407818 Image available Psorothamnus schottii Richard Walker 1967-4-30 80 Riverside Adjacent to outside of fence ca. 400ft East of North entrance to U of Califronis Desert Research Station, Palm Desert. 244 Comment
  UCR23857  Psorothamnus schottii John C. Roos 1966-5-2 s.n. Riverside Western Colorado Desert, mouth of Pushawalla Canyon, Indio Mtns [Hills]. Comment
  CAS-BOT-BC340949  Psorothamnus spinosus E. R. Johnson 1928-6-8 s.n. Riverside Along highway south of Mecca on west side of Salton Sea Comment
  CAS-BOT-BC72617  Pteridium aquilinum Carl B. Wolf 1932-5-25 3664 Riverside No. base of San Jacinto Mts., mouth of E. fork of Snow Creek Canyon 670 Comment
  UC63824  Pterospora andromedea H. M. Hall 1901-6 2467 Riverside Tauquitz Valley San Jacinto Mountains 2438 Comment
  UCR93240  Pterostegia drymarioides F. M. Reed 1907-5-5 1346 Riverside City of Riverside; Fairmont Park 244 Comment
  SEINET7048167  Pterostegia drymarioides Steven R. Hill 2001-5-3 33672 Riverside Northeast-facing slopes of Mount San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, about 3.8 miles due west of California Route 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area. Elevation about 2600 feet. Comment
  UCR125275  Pulicaria paludosa A. C. Sanders 2002-11-21 25640 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy' at the confluence of Bixby and Anderson Canyons 366 Comment
  POM305800  Quercus agrifolia Henry J. Ramsey 1937-4-2 1059 Riverside Elsinore. Comment
  UCR269230  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Cecile Shohet 2016-2-28 41999 Riverside Peninsular Range, c. 10 km ESE of Temecula, 150 m west of Los Caballos Rd. at a point 0.3 km south of Hwy 79 399 Comment
  UCR273006  Quercus berberidifolia Mitch Provance 2012-4-1 17428 Riverside Badlands of Western Riverside County, N side of San Timoteo Canyon Rd., about 4.5 mi WNW of intersection with I-10, N of old Haskell residence 646 Comment
  UCR277497  Quercus berberidifolia Mitch Provance 2012-4-20 412- 35 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
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Jul 22 2018
  NY201962  Quercus cornelius-mulleri J. B. Walker 1995-5-3 1408 Riverside S of Palm Desert, along Hwy 74, 3km E of Pinyon Flats Campground 1200 Comment
  UC5587  Quercus cornelius-mulleri Mrs. Gregory 1890-1 Riverside San Jacinto Comment
  CDA29916  Quercus engelmannii Mike Lahti 2009-10-2 PDR# 1501841 Riverside Southwest of Temecula. 0 Comment
  RSA180340  Quercus engelmannii E. W. Lathrop 1965-3-29 5607 Riverside 12 miles west of Murrieta-Tenaja Range Comment
  RSA262450  Quercus engelmannii F. C. Vasek 1975-9-11 s.n. Riverside Horsetheif Creek Canyon, south west of Pinyon Flat, where the Cactus Spring Trail Crosses. Comment
  RSA564290  Quercus engelmannii Ed LaRue 1993-5-10 s.n. Riverside Murrieta Oaks, 3 miles (airline) NW of Murrieta Hot Springs, W side of Hwy 215 457 Comment
  UC338415 Image available Quercus macdonaldii var. elegantula Edw. L. Greene 1889-6-1 Riverside Temecula Canyon Comment
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Mar 27 2011
  UCD47107  Quercus palmeri Rudolph Fischer 1965-10-8 1 Riverside East foothills of Thomas Mountain, Santa Rosa range, State Highway 74, ca. 10 miles south of keen Camp, Riverside County, California. 1341 Comment
  CAS-BOT-BC104992  Quercus wislizeni Louis C. Wheeler 1931-10-4 244 Riverside 2 mi N Idyllwild, San Jacinto Mts. 1798 Comment
  RSA0120465  Rafinesquia californica Duncan S. Bell 2016-4-16 9305 Riverside Whitewater Watershed; Whitewater Canyon; collecting in Rainbow Canyon, approximately 2.5 air miles east northeast of Kitching Peak. 1023 Comment
  UC1536751  Rafinesquia californica G. H. True Jr. 1935-3-18 225 Riverside Box Springs 365 Comment
  UCR26536  Rafinesquia californica A. C. Sanders, S. Hagopian 1981-5-20 2141 Riverside Perris-Aguanga Basin, S side of Pauba Valley, within l mi of Hwy 71 bridge over the Temecula River 367 Comment
  CLARK-A1656-688  Rafinesquia neomexicana Lois Ann Scott 1979-3-2 Riverside Rancho Mirage 91 Comment
  JEPS29289  Rafinesquia neomexicana Rimo Bacigalupi, and L. Heckard, and P. C. Hutchison 1962-3-23 8360 a Riverside 1.9 mi sw San Bernardino County line (lower end of Morongo Wash); Morongo Wash 609 Comment
  SD187468  Ranunculus sceleratus Scott D. White 2004-5-7 10319 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent foothills 548 Comment
  UCR91291  Raphanus sativus Scott D. White, M. Jacobsmeyer 1996-4-20 3978 Riverside Perris Basin, Near Perris Airport, c. 100 m north of Case Road, just west of the I-215 Fwy 433 Comment
  CLARK-A1528-5196  Rhamnus crocea John C. Roos 1952-2-29 5378 Riverside Reche Canyon 457 Comment
  OBI53609  Rhamnus crocea Steve Myers 1988-1 s.n. Riverside Temescal Cyn, ca 1/4 mi W of intersection of hwy I-15 & Indian Truck trl 381 Comment
  UCR214903  Rhamnus crocea A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-3-31 37681 Riverside Peninsular Range; foothills of Gavilan Hills, Temescal Canyon at Alberhill, c. 1/2 mi. west of Lake St. on N side of I-15, near Temescal Canyon Rd. undercrossing and N of Concordia Ranch Rd. 402 Comment
  CAS-BOT-BC56045  Rhamnus ilicifolia L. R. Abrams 1908-7-21 s.n. Riverside Santa Ana Mountains, near Elsinore Comment
  JOTR31124  Rhamnus ilicifolia La Doux, Tasha, M. Harding, B. Truesdell, M. Wheeler 2010-5-12 2506 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
  LA207802  Rhamnus ilicifolia A. M. Johnson; 1932-8-19 4133 Riverside San Jacinto Mountains Comment
  RSA38493  Rhamnus ilicifolia P. A. Munz 1946-10-19 11569 -a Riverside 1 miles east of Anza. 1159 Comment
  RSA586043  Rhamnus ilicifolia D. L. Banks, S. D. Boyd 1995-3-16 96 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, Arroyo Seco drainage. 537 Comment
  RSA735190  Rhamnus ilicifolia Scott D. White, Angelia Carey 2004-6-4 10463 Riverside San Jacinto Mountain foothills: Indian Creek watershed, above confluence w/ San Jacinto River. Uplands around former homestead area SE of creek. 579 Comment
  RSA390152  Rhamnus tomentella subsp. cuspidata Elbert Benjamine 1929-5-18 215 Riverside Mt. San Jacinto. Comment
  CAS-BOT-BC200032  Rhododendron occidentale var. californicum Mrs. E. C. Van Dyke 1928-7-22 s.n. Riverside Idyllwild Comment
  UCD116881  Rhus aromatica Ted C. MacRae 1995-5-26 43 b Riverside Santa Rosa Mts., Pinyon Flats Cpgd., 15.5 mi S Palm Desert. 1219 Comment
  UCR26962  Rhus integrifolia E. W. Lathrop 1966-3-23 6074 Riverside Peninsular Range; Santa Ana Mtns, Skyline Drive, 4 mi west of Corona between Tin Mine Canyon and Santiago Peak 610 Comment
  CLARK-A1528-1414  Rhus laurina John C. Roos 1954-7-10 6191 Riverside Box Springs Mountains 487 Comment
  UCR167679  Rhus laurina T. B. Salvato, Melissa Clemons 2005-6-23 1286 Riverside Peninsular Range; Temescal Valley, Alberhill, intersection of Lake Street and Walker Canyon Drive, N of Hwy I-15, at base of Walker Canyon 378 Comment
  UCR167811  Rhus laurina T. B. Salvato, Melissa Clemons 2005-6-23 1322 Riverside Peninsular Range; Temescal Valley, 3 miles NW of Alberhill, Temescal Canyon Road at Corona [Lee] Lake 366 Comment
  CAS-BOT-BC167971  Rhus ovata Victor Duran 1933-7-3 3498 Riverside 2 miles east of Pinyon Flat, Santa Rosa Mts. 1066 Comment
  LA62865  Rhus ovata Elizabeth McClintock; 1939-12-28 sn Riverside San Timoteo Canyon Comment
  SD71843  Rhus ovata Helen V. Witham 1969-7-2 213 Riverside Sandia Creek, on road from DeLuz to Murietta. 299 Comment
  UC2015590  Rhus ovata Scott D. White 1996-3-16 3820 Riverside Perris Basin, Lakeview Mts, N of Winchester, at Maze Stone Picnic Area. Comment
  UCSB3758  Rhus ovata Kamb, Peter 1947-3-3 Riverside Upper Sonora Zone; Banning-Idyllwild road below Barton lookout, San Jacinto Mts. 914 Comment
  CLARK-A1528-119  Rhus trilobata var. anisophylla C. M. Flanagan 1973-5-31 OO 625 Riverside Morongo Indian Reservation 975 Comment
  RSA544412  Rhus trilobata var. pilosissima Steve Boyd, Timothy S. Ross 1991-6-14 6380 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 Spings. 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
  UCR187493  Ribes indecorum Theresa Johnson 2006-5-15 108 Riverside Peninsular Range, hills just SE of Mica Butte, 5 miles SE of Hemet 579 Comment
  RSA0022092  Ribes montigenum P. A. Munz 1922-7-7 6046 Riverside Summit of San Jacinto Peak. 3287 Comment
  POM20019  Ribes nevadense Mary F. Spencer 1923-6-12 2174 Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  UCR35280  Ribes nevadense L. B. Ziegler 1970-5-20 401 Riverside San Jacinto Mtns, North Fork of the San Jacinto River (Dark Canyon). 1677 Comment
  POM229020  Ribes quercetorum P. A. Munz 1937-5-31 15120 Riverside At Anza Table [Anza Bench] near head of Coyote Canyon. 1067 Comment
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Dec 17 2011
  RSA5920  Ribes roezlii Carl B. Wolf 1932-8-5 3969 Riverside Along trail from Tahquitz Valley to San Jacinto Peak. Above the small stream and meadows feeding Tahquitz Creek. 2805 Comment
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Aug 8 2007
  POM256958  Ribes speciosum W. Pequegnat 1939-12-29 s.n. Riverside Bedford Truck Trail, Santa Ana Mts. 610 Comment
  RSA519258  Romneya coulteri Ed LaRue 1989-4-26 s.n. Riverside 2 mi. (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouths of Rice and McVicker Canyons. 488 Comment
  CAS-BOT-BC92174  Romneya coulteri var. coulteri E. H. Daniels; J. Bates 1932-6-6 s.n. Riverside Alberhill, Temescal Canyon, between Corona and Elsinore. 350 Comment
  RSA789413  Rorippa curvisiliqua Naomi Fraga, Erin Tripp, Tom Kerrin-Torres, Michael Wall 2008-10-16 2614 Riverside Mount San Jacinto State Park; Hidden Lake 2652 Comment
  UCR274194  Rorippa nasturtium-aquaticum T. B. Salvato, Gregg Miller 2005-6-7 1443 Riverside Peninsular Range, Gavilan Hills, along Hill Top Drive, 1.7 mi NE ( 54.8 deg. ) of the Lake Street junction with Hwy I-15, and 1.8 miles west of El Toro Road, near benchmark 2349 695 Comment
  RSA748785  Rorippa palustris subsp. occidentalis Justin M. Wood, Jamie Miner 2009-4-2 464 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  UCR207702  Rorippa palustris subsp. occidentalis Justin M. Wood, Jamie Miner 2009-4-2 464 Riverside SW Perris Basin, Temecula - Murrieta Creek, downstream of 1st Street Bridge 305 Comment
  UC1971231  Rubus parviflorus Scott D. White 1998-7-31 6939 Riverside IDYLLWILD AREA: Strawberry Creek between crossing at Circle Dr. and Humber Park. USGS 7.5' San Jacinto Peak quad. Comment
  UCR260134  Rumex A. C. Sanders 2015-2-19 41251 Riverside San Jacinto Valley, 53 acre parcel c. 370 m south of Ramona Expressway and 1 km east of Warren Rd., north of Record Rd. 442 Comment
  UCR91544  Rumex dentatus Chet McGaugh 1996-4-26 s.n. Riverside San Jacinto Valley, Hemet, 0.25 mi west of State St., between Esplanade and Cottowood 465 Comment
  CAS-BOT-BC433587  Rumex hymenosepalus Steve Boyd; Tim Ross; Laurel Arnseth 1990-3-30 3954 Riverside Vail Lake area, granitic ridge at S end of Black Hills S of 'Big' Oak Mtn. 731 Comment
  UCR213282  Rumex hymenosepalus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-3-31 37695 Riverside Peninsular Range; foothills of Gavilan Hills, Temescal Canyon at Alberhill, c. 1/2 mi. west of Lake St. on north side of I-15, near Temescal Canyon Rd. undercrossing, at north edge of Concordia Ranch Rd. 378 Comment
  UCR241057  Rumex maritimus John F. Green 2013-5-17 s.n. Riverside Peninsular Range, near intersection of Temescal Canyon Rd. and Campbell Ranch Rd. 329 Comment
  RSA653322  Rumex pulcher Mitch Provance, A. C. Sanders 2000-7-4 2095 Riverside Riverside: Santa Ana River Wash, between the Market St. and Riverside Ave crossings. 244 Comment
  SD146180  Rumex pulcher Mitch Provance, Andy C. Sanders 2000-7-4 2095 Riverside Santa Ana River Wash, between Market St. and Riverside Ave crossings 244 Comment
  UCR89792  Rumex salicifolius var. denticulatus Scott D. White 1993-5-27 1412 Riverside North Alberhill Ranch, hills north of Walker Canyon 488 Comment
  UC64584  Rumex salicifolius var. salicifolius H. M. Hall 1901-7-1 Riverside vicinity Deer Springs; San Jacinto Mountains 2743 Comment
  UCR150986  Sagina saginoides L. C. Wheeler 1961-6-20 7894 Riverside Peninsular Ranges; San Jacinto Mtns., W fork of Tahquitz Creek 2378 Comment
  CSUSB1688  Salazaria mexicana Wayne White 1975-5-17 Riverside Chuckwalla Mountains On Red Cloud Road, off Highway I-10, Chuckwalla Mountains. Colorado Desert. 484 Comment
  UCR85565  Salicornia subterminalis Julie A. Greene 1993-4-10 1148 Riverside San Jacinto Valley, San Jacinto Wildlife Area. Sloping drainage from Davis Road. 436 Comment
  CAS-BOT-BC129746  Salix bonplandiana E. W. Lathrop 1959-4-17 4490 Riverside 14 miles east of Murrieta, Tenaja plateau, west slope of Rolondo Mesa. Comment
  CAS-BOT-BC103894  Salix exigua Marian L. Campbell 1921-3-19 36 Riverside Banning Comment
  LA208620  Salix exigua var. exigua Carl Epling; 1927-3-27 sn Riverside Thousand Palms Comment
  CAS-BOT-BC108103  Salix gooddingii I. Johnston 1917-6-5 1235 Riverside Hills south of Arlington 365 Comment
  CAS-BOT-BC108105  Salix gooddingii Carl B. Wolf 1932-4-28 3085 Riverside In sandy alkali loam of overflow land back of Colorado River, about 800 m. from State Inspectoin Station, on way to Blythe Bridge. 90 Comment
  CAS-BOT-BC108112  Salix gooddingii C. F. Baker 1903-4-4 4146 Riverside Elsinore Comment
  POM202536  Salix gooddingii Philip A. Munz 1932-3-24 12032 Riverside North of Elsinore 305 Comment
  UC846811  Salix gooddingii Ivan Johnston 1917-4-4 Riverside Palm Canyon; Colorado Desert, Palm Canyon 457 Comment
  LA208733  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7678 Riverside Chino Creek near Prado (Rincon), below Corona [Area 7] Comment
  RSA715298  Salix lasiolepis A. C. Sanders, T. B. Salvato 2006-5-28 32666 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd., vicinity of peak 2279. 579 Comment
  RSA728670  Salsola tragus R. E. Riefner 2007-2-19 7 -72 Riverside City of Perris, along Hwy. 74 at 4th St. and B st. 462 Comment
  RSA594531  Salsola tragus D. L. Banks, Rashmi Pant 1996-5-13 1011 A Riverside NW Palomar Mountains; Agua Tibia Mountains; Foothills S of Hwy. 79 ; E of the Dripping Spring Campground; Along a xeric, arkose ridge, approximately 100 m E of the Dripping Springs Guard Station, just S of Hwy. 500 Comment
  RSA696725  Salsola tragus J. R. Bruff 1927-10-16 1 -W Riverside Roadside near Elsinore. Comment
  RSA0095103  Saltugilia australis N. C. Cooper 1944-5-20 1282 Riverside Palms to Pines Highway, San Jacinto Mountains. 915 Comment
  UC714927  Saltugilia australis R. C. Foster 1937-3-7 62 Riverside near aqueduct (w slope Whitewater Canyon); w slope Whitewater Canyon Comment
  UCR108863  Saltugilia australis Heidi A. Haid 1969-5-14 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  RSA469681  Saltugilia splendens Robert L. Rutherford 1945-5-24 1655 Riverside Big Oaks Canyon, Banning. 1220 Comment
  UC25654  Salvia apiana Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Valley Comment
  UCD125434  Salvia apiana Richard Bates 1949-5-21 s.n. Riverside Pinon Flats area, Palms to Pines Highway, San Jacinto Mountains. Comment
  RSA319650  Salvia apiana Patricia Wilder 1970-10-15 4817 Riverside Prado Dam; by entry gate on west end of top of dam; Chino Hills; Santa Ana River. 183 Comment
  UCLA55169  Salvia apiana var. compacta C. Epling and L. Haines 1937-5-7 Riverside 1 mi below Shumway Rd.; Palms to Pines Highway Comment
  RSA69373  Salvia carduacea G. R. Campbell 1951-5-30 16142 Riverside Just east of Cahuilla. 1098 Comment
  CSUSB1061  Salvia columbariae J. R. Sweeten 1965-4-21 Riverside About 1 mile southwest of Lake Matthews Dam; near roadside on steep slope; Riverside. Comment
  POM305596  Salvia columbariae Henry J. Ramsey, Henry J. Ramsey 1937-3-2 886 Riverside Indio. Comment
  RSA314624  Salvia columbariae Robert F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55414 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  SD73609  Salvia columbariae Helen Witham 1970-5-1 858 Riverside SE of Hemet, in Bautista Canyon 800 Comment
  UCR165412  Salvia columbariae A. C. Sanders 2005-4-21 29563 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UC883901  Salvia eremostachya B. D. Stark 1933-4-2 Riverside 3 mi below Pinyon Flats (Palms to Pines Rd); San Jacinto Mts. 1066 Comment
  RSA449941  Salvia greatae J. C. Roos 1958-3-29 s.n. Riverside Salt Creek Wash, 3 miles N of Coachella Canal on E base of Orocopia Mtns. 305 Comment
  CLARK-A1528-588  Salvia mellifera Markell Kohn 1959-4-1 Riverside Riverside Comment
  RSA434140  Salvia mellifera Ora M. Clark 1929-4-16 1933 Riverside E. Riverside. Comment
  UCR216398  Salvia mellifera Mike Bell 2008-3-30 025 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau Ecological Reserve, 5 miles SW of Murrieta, Punta Mesa Trail 537 Comment
  JOTR29143  Salvia mohavensis La Doux, Tasha 2005-6-20 1220 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Berdoo Canyon; where road/canyon turns west 1182 Comment
  JOTR37448  Salvia mohavensis Hodges, Stephen, T. Green 2016-5-24 570 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Quail Mountain Complex; ascending up wash and slopes towards Mount Minerva Hoyt peak from the east (Stop 2). Comment
  CAS-BOT-BC233344  Salvia vaseyi Edmund C. Jaeger 1932-5-12 s.n. Riverside Dead Inidan Creek, west side of the Colorado Desert southwest of Indio Comment
  SEINET156295  Sambucus caerulea Norman C. Cooper 1944-5-19 1289 Riverside Banning. 701 Comment
  CHSC35503  Sambucus mexicana J. M. Sully 1972-4-30 19 Riverside 7 mi. SW of Murrieta on Tenaja Rd. 487 Comment
  RSA1239  Sambucus mexicana B. D. Stark 1930-3-18 1489 Riverside Cajalco District. Comment
  UCR140687  Sambucus mexicana Randall T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero 2004-5-20 8- 61 Riverside San Jacinto Mtns, San Bernardino National Forest, Hwy 74 near Cranston Guard Station, 10 miles east of Hemet, Site L8 581 Comment
  UCR241207  Sambucus mexicana Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 05 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, just inside gate at mouth of Hathaway Canyon 741 Comment
  UC1922062  Sambucus nigra subsp. caerulea Scott D. White, Angelia Carey 2004-4-5 10009 Riverside SAN JACINTO MTN FOOTHILLS: North of Valle Vista. Indian Creek Watershed. Comment
  RSA570230  Sanicula crassicaulis Steve Boyd, Timothy S. Ross 1993-3-23 7904 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, 610 Comment
  UCR249921  Sanicula tuberosa A. C. Sanders, Steve Boyd, Fred M. Roberts, Robt. L. Allen 2009-4-9 36789 Riverside Peninsular Range; Santa Ana Mtns., Elsinore Peak, c. 0.4 mi. SE of the summit 1014 Comment
  UCR34990  Sanicula tuberosa L. B. Ziegler 1975-5-1 541 Riverside San Jacinto Mtns, Bautista Canyon 703 Comment
  SEINET244780  Sarcostemma cynanchoides A. C. Sanders, Mitch Provance; T. B. Salvato 2001-5-7 24174 Riverside Perris-Aguanga Basin; S of Hemet, E end of Diamond Valley, along Gibbel Rd. 0.5-0.75 mi E of State St., between Silver Dew Dr. and Morse Girard St., Slopes and wash below the mouth of Avery Canyon 503 Comment
  UC566925  Sarcostemma cynanchoides subsp. hartwegii H. L. Mason 1926-5-2 3193 Riverside Aguanga Valley Comment
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Nov 16 2011
  UC809711  Sarcostemma hirtellum Philip A. Munz 1949-4-12 13041 Riverside near Iron Chief Mine Mohave Desert, Eagle Mts., Iron Chief Mine 762 Comment
  UCR196367  Schismus arabicus Naomi Fraga, Lisa Rojas 2005-2-10 1365 Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 365 Comment
  HSC10886  Schismus barbatus C. L. Hitchcock, C. V. Muhlick 1964-3-17 23093 Riverside 3 mi. SE of Glen Ivy Hot Springs. Comment
  RSA0110188  Schismus barbatus Duncan S. Bell 2010-4-2 709 A Riverside Arica Mountains: west side of mountain range within the Palen/McCoy Wilderness; approximately 2.5 air miles northwest of Priest Well; collecting along a steep sand ramp at the head of the main western drainage for the mountain range. 559 Comment
  RSA793417  Schismus barbatus Naomi Fraga, David Fraker, Tommy Stoughton 2012-3-15 3946 Riverside Off of Box Canyon Rd. S. of Shaver well in a wash. 229 Comment
  SD247293  Schismus barbatus A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41445 Riverside San Gorgonio Pass: San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms (White Water 7.5'Q) 433 Comment
  SEINET212601 Image available Schismus barbatus N. H. Holmgren, PK Holmgren; R. E. Kern 1973-3-22 6496 Riverside Rice Valley 7 miles sout-southwest of Rice 274 Comment
  SEINET229451 Image available Schismus barbatus L. M. Shultz, JS Shultz 1985-4-17 8317 Riverside Chuckawalla Valley depression along Wiley's well road 122 Comment
  CAS-BOT-BC111575  Schoenoplectus americanus W. I. Follett; E. B. Follett 1966-4-20 s.n. Riverside Pond east of Dos Palmas Spring. Comment
  UCR163232  Schoenoplectus americanus D. L. Koutnik, Ian Swift 1999-6-19 s.n. Riverside Peninsular Range; Perris-Aguanga Basin Region, proposed conservation bank in Wilson Creek watershed, north of Aguanga, west of Cahuilla Rd., south of Wilson Valley Rd., east of Sage Rd. 671 Comment
  UCR195097  Scirpus microcarpus A. C. Sanders, Tim Thomas 2008-8-1 35951 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1402 Comment
  RSA160542  Scrophularia californica subsp. floribunda J. D. Olmsted 1959-6-25 681 Riverside San Jacinto Mtns., Strawberry Creek, NE of Idyllwild, Strawberry Creek in Fern Valley 1646 Comment
  RSA654615  Scrophularia californica subsp. floribunda Bruce Albert 1982-4-17 75 Riverside Field north of Santa Rosa road, 5.7 miles east of Lake Mathews Road. Comment
  SD236321  Scutellaria bolanderi subsp. austromontana A. C. Sanders, Mitch Provance 2008-7-11 35803 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 1449 Comment
  CAS-BOT-BC214232  Scutellaria bolanderi subsp. bolanderi John Thomas Howell 1927-8-2 2925 Riverside Road to Hemet at top of control, Mt. San Jacinto 1371 Comment
  CAS-BOT-BC341095  Scutellaria mexicana A. C. Sanders; K. Rose 1995-4-5 16373 Riverside San Bernardino Mtns./Coachella Valley: alluvial slopes and foothills S of Mission Creek and W of Hwy 62 700 Comment
  LA30222  Scutellaria mexicana Harlan Lewis; 1957-4-3 sn Riverside Morongo Canyon Comment
  UCD125769  Scutellaria mexicana G. L. Webster; R. Hildreth 1966-12-9 7459 Riverside Joshua Tree National Monument, desert scrub around 1.5 miles north of Cottonwood Springs. 944 Comment
  UC456122  Scutellaria siphocampyloides I. J. Condit 1900-6-21 Riverside near Idlewild; San Jacinto Mountains 1524 Comment
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Sep 17 2011
  POM12031  Selaginella bigelovii Mary F. Spencer 1928-5-28 1697 Riverside Lower slope of San Jacinto Mountain 762 Comment
  SEINET6336353  Selaginella bigelovii S. B. Parish 1907-4-18 6110 Riverside Western border of the Colorado Desert 200 Comment
  RSA543735  Senecio californicus Steve Boyd, Timothy S. Ross, Mike Hammitt 1991-5-2 6070 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
  SD8780  Senecio californicus var. californicus unknown 1882-4-23 Riverside Temecula Comment
  RSA472948  Senecio flaccidus var. douglasii N. C. Cooper 1949-6-29 4361 Riverside East side of San Jacinto Mountains. 457 Comment
  UC575024  Senecio flaccidus var. monoensis C. Epling and Wm. Robison 1933-6-26 Riverside basin 5 mi s Lost Horse Wells; Little San Bernardino Mts. Comment
  UCR227594  Senecio flaccidus var. monoensis Duncan S. Bell, Joy England 2010-10-5 1978 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 1.75 air miles southeast of junction of Forest Service Road 6S04 and Forest Service Road 6S13 1387 Comment
  LA212194  Senecio flaccidus var. monoensis James R. Shevock; 1972-10-14 2317 Riverside Coyote Canyon, Upper. 609 Comment
  CAS-BOT-BC364133  Senecio mohavensis Edmund C. Jaeger 1922-3-19 s.n. Riverside Painted Canyon near Mecca Comment
  CAS-BOT-BC364135  Senecio mohavensis Forrest Shreve 1937-3-12 7902 Riverside East base Coxcomb Mts. Comment
  POM48355  Senecio triangularis P. A. Munz, I. M. Johnston 1924-7-27 8792 Riverside Deer Springs, San Jacinto Mountains. 2500 Comment
  RSA449948  Senecio vulgaris J. C. Roos 1967-2-7 s.n. Riverside City of Hemet. Comment
  SD229143  Senegalia greggii Dick Schwenkmeyer 2013-6-11 903 Riverside Approx. 1.5 miles north od highway 74 and Royal Carrizo Road intersection. 854 Comment
  UCR59670  Sesuvium verrucosum Steve Boyd, T. Roos, et al 1989-5-7 3549 Riverside Peninsular Ranges; Palomar Mountains region, Vail Lake area, pond and freshwater marsh in Kolb Creek, just south of the lake Comment
  CAS-BOT-BC240117  Setaria adhaerens Malcom A. Nobs; S. Galen Smith 1948-9-3 492 Riverside Imperial Valley. 2 miles north of Indio Comment
  UCR39399  Setaria adhaerens A. C. Sanders 1985-8-24 5948 Riverside Sonoran (Colorado) Desert, lower Coachella Valley near Oasis on the dirt extension of Avenue 76, 0.4 mi east of Hwy 195, along the south side of a large drain flowing toward the Salton Sea -55 Comment
  SD181452  Sidalcea malviflora Scott D. White 2000-5-3 7764 Riverside Temecula area, near Wolf Valley. Valley and hillsides along unnamed tributary to Temecula Creek, directly south of 'Red Hawk' subdivision; Petchanga [quad]. Occasional to common in A+-mesic grassland. 351 Comment
  UCR50582  Sidalcea malviflora B. G. Pitzer, E. Misquez 1988-2-28 0630 Riverside Santa Ana Mtns, Walker Basin, southwest of Murrieta, Avenida Del Oro, 2 mi south of Rancho California Road 428 Comment
  RSA33841  Sidalcea malviflora subsp. sparsifolia N. C. Cooper 1944-4-22 1133 Riverside Banning. 762 Comment
  CAS-BOT-BC109422  Sidotheca emarginata E. A. McGregor 1941-6-12 32 Riverside Santa Rosa Mountain. Comment
  CAS-BOT-BC434389  Sidotheca trilobata John Thomas Howell 1931-5-30 6614 Riverside Santiago Peak, Santa Ana Mts. Comment
  SD181382  Sidotheca trilobata Rashmi Pant, Darin Banks 1996-5-1 1013 Riverside Cleveland National Forest: along the Cutca Trail, E of the Cutca Valley, ca. 0.5 miles W of the Aguanga Trail Junction Comment
  UCR176085  Silene antirrhina Vanessa Lee 2005-4-14 s.n. 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
  SD137807  Silene gallica Darin L. Banks, Steve Boyd 1995-5-3 295 Riverside Cleveland National Forest, Agua Tibia Wilderness Area; north slope of Agua Tibia Mountain, east of the Dripping Springs Alcove Area. 509 Comment
  RSA477826  Silene laciniata subsp. major Gale Sphon 1955-06 s.n. Riverside Horsethief Canyon, Elsinore Mountains. Comment
  UC8462  Silene laciniata subsp. major H. M. Hall 1899-5-30 1217 Riverside Smith's Mt. Comment
  UCR151102  Silene verecunda subsp. platyota Scott D. White, Julie Greene 1998-8-1 6960 Riverside Peninsular Ranges/San Jacinto Mtns region, Idyllwild Area, within residential community above/parallel to E bank of Strawberry Creek, between crossing at Circle Drive and Humber Park 1951 Comment
  UCR35133  Silene verecunda subsp. platyota L. B. Ziegler 1968-6-11 310 Riverside San Jacinto Mtns, Hemet Valley (= Garner Valley) 1418 Comment
  RSA335004  Silybum marianum Steve Boyd 1985-7-30 1048 Riverside De Luz Rd. 7.8 mi west of Rancho California. Comment
  UC1281215  Simmondsia chinensis H. E. McMinn 1937-3-5 4486 Riverside on road from Pinto Basin to Mecca (ne border of Cottonwood Mts.); ne border of Cottonwood Mts. Comment
  SEINET12141009  Simmondsia chinensis P. H. Raven 1958-1 11857 Riverside Smoketree Wash, Joshua Tree National Monument Comment
  CAS-BOT-BC74912  Sinapis arvensis J. H. Thomas 1957-3-29 6519 Riverside Between Banning and Cabazon, about 2 miles east of Banning near railroad tracks. 609 Comment
  RSA594760  Sisymbrium altissimum D. L. Banks, Dylan Hannon 1996-5-3 1002 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
  UCD115499  Sisymbrium altissimum E. W. Lathrop Date unknown 6196 Riverside Santa Ana Mountains, trail between El Carriso and San Mateo Canyon. Cleveland National Forest. 1219 Comment
  CAS-BOT-BC75246  Sisymbrium irio Catherine Best 1998-1-15 1500 Riverside Joshua National Monument. Comment
  UC1921998  Sisymbrium irio Scott D. White, Angelia Carey 2004-5-7 10338 Riverside San Jacinto Mountain Foothills: Indian Creek and adjacent foothills. Comment
  UCR41353  Sisymbrium irio N. M. Fellows, A. C. Sanders 1985-4-9 127 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, Oasis de Los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the north foot of San Jacinto Mtns., 1 mile west of Snow Creek Village 489 Comment
  UCR84786  Sisymbrium irio Scott D. White, S. Ogg 1994-4-21 1957 Riverside San Bernardino Mtns., Millard Canyon, near jct of E and W forks of USFS Road 2S05, c. 2.5 mi south of Bear Wallow Spring. 976 Comment
  UCR199680  Sisymbrium officinale Scott D. White 2008-4-28 11912 Riverside San Gorgonio Pass, Banning, south of Hwy I-10 and just north of San Jacinto Mountains toe slope. East of Sunset Avenue 701 Comment
  UCR2412