Search Results — 2000 specimen records retrieved (1878 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM6704  Abronia villosa var. aurita P. A. Munz, L. T. Street, G. Williams 1919-3-26 2336 Riverside Palm Canyon 213 Comment
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Apr 23 2011
  RSA500071  Abronia villosa var. aurita Steve Boyd, T. S. Ross, L. Arnseth 1989-4-2 3240 Riverside Vail Lake area, sandy valley at NE end of lake, N of Wilson Creek 488 Comment
  RSA764467  Abronia villosa var. aurita Doris Bowers 1972-4-15 1826 Riverside Near SBCM dig on Pulgas Creek Rd., Rancho Calif. 396 Comment
  SEINET1906751  Abronia villosa var. aurita D. E. Bramlet, Fred M. Roberts, Michael C. Couffer 2004-1 3548 Riverside Perris-Aguanga Basin: South Bernasconi Hills. Adjacent to existing acess road. 244 m S of the Ramona Expressway and 2.2 km W of the San Jacinto River. 487 Comment
  UC1234717  Abronia villosa var. aurita Philip A. Munz 1957-6-6 22731 Riverside 2 mi n Alberhill; Temescal Canyon Comment
  RSA461186  Abronia villosa var. villosa Louis C. Wheeler 1931-11-26 380 Riverside Salton Bench Mark, Colorado Desert. -15 Comment
  SD122918  Abutilon theophrasti Steve Boyd 1985-9-23 1189 Riverside Weed: garden weed at Boyd residence, Good Hope Valley area, west of Perris. 487 Comment
  UCR40263  Abutilon theophrasti Steve Boyd 1985-9-23 1189 Riverside Boyd residence, Good Hope Valley area, west of Perris. 488 Comment
  HSC24824  Acacia greggii James Henrickson 1971-4-2 5474 Riverside Hidden Oasis, 13 mi. E of Palm Spring 183 Comment
  UC472818  Acacia greggii Mary Fiske Spencer 1918-3-31 Riverside Colorado Desert, Palm Canyon Palm Canyon; Colorado Desert, Palm Canyon 125 Comment
  CLARK-A1528-1529  Acamptopappus shockleyi John C. Roos 1937-4-18 2483 Riverside San Jacinto Mountains Comment
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Oct 2 2018
  CAS-BOT-BC154103  Acamptopappus sphaerocephalus M. McCollum 1976-6-10 s.n. Riverside 4 mi. W. of Desert Hot Springs Comment
  CAS-BOT-BC30950  Acamptopappus sphaerocephalus L. R. Abrams 1941-4-23 13923 Riverside White Water wash, Palm Springs railroad station Comment
  RSA0123757  Acamptopappus sphaerocephalus Duncan S. Bell, LeRoy Gross 2016-3-10 8866 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; northwestern section of the range; collecting approximately 2.25 air miles northwest of the summit area. 859 Comment
  POM229033  Acamptopappus sphaerocephalus var. sphaerocephalus P. A. Munz 1937-5-29 15151 Riverside Deep Canyon, Santa Rosa Mountains. 1067 Comment
  RSA416158  Acamptopappus sphaerocephalus var. sphaerocephalus P. J. Remple 1942-3-21 s.n. Riverside Whitewater Canyon. Wall of side canyon. Comment
  UC604854  Acamptopappus sphaerocephalus var. sphaerocephalus Roxana S. Ferris and Ruth P. Rossbach 1938-5-15 9539 Riverside 2 mi from Cottonwood Springs; Cottonwood Mts. Comment
  UCR16086  Acer macrophyllum J. Operskalski 1976-4-15 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, lower spring, Tahquitz Canyon Comment
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Sep 17 2012
  RSA717495  Acer negundo A. C. Sanders, O. F. Clarke 1991-6-10 11122 Riverside Upper Santa Ana River/San Bernardino Valley: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River. 238 Comment
  RSA757786  Achnatherum coronatum LeRoy Gross, Jackie McConnaughy, Drew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4301 Riverside Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon., Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W. Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  POM1118  Achnatherum hymenoides I. M. Johnston 1917-4-4 s.n. Riverside Whitewater Comment
  RSA27234  Achnatherum speciosum C. L. Hitchcock 1940-4-12 6046 Riverside 8 mi. northwest of Elsinore 457 Comment
  RSA503144  Achyronychia cooperi Gary D. Wallace, D. H. Wilken 1966-3-26 261 Riverside Indio Hills 70 Comment
  RSA747796  Achyronychia cooperi Justin M. Wood 2009-3-26 394 Riverside Western foothills of Mecca Hills, +/- 0.5 air mile east of the Coachella Canal and 4 air miles S of the I-10 Freeway. 21 Comment
  UCR126431  Achyronychia cooperi T. B. Salvato, A. C. Sanders, Mitch Provance 2000-4-18 56 Riverside Coachella Valley, 2 mi NE of Mecca near mouth of Painted Canyon at foot of Mecca Hills, W edge of Coachella Canal 9 Comment
  UCR166539  Achyronychia cooperi Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10877 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  OBI12981  Acmispon glaber var. brevialatus Robert F. Hoover 1969-4-11 11221 Riverside Mouth of Morongo valley cyn Comment
  SD237430  Acmispon glaber var. brevialatus T. B. Salvato, Matt Malle, Tim Searl 2011-4-19 5161 Riverside Peninsular Range; Gavilan Hills: Alberhill, unpaved extension of Lake Street, 1.5 km NNE of the intersection of Lake Street and Hwy 15. 462 Comment
  SDSU12918  Acmispon glaber var. brevialatus Jutta Buschbom 1991-6-1 35 Riverside Santa Margarita Ecological Reserve, Temecula: SE-slope, N-Border of the Reserve, beyond an Avocado-grove, ca. 500m (15 min) from the fieldstation . Comment
  SBBG67985  Acmispon maritimus var. brevivexillus M. N. Ackley 1928-3-31 546 Riverside Hidden Spring 304 Comment
  SBBG67449  Acmispon nevadensis var. davidsonii Mrs. J. D. Wright 1929-6-25 Riverside San Jacinto Mtns [probably near Idyllwild] Comment
  SEINET957864  Acmispon procumbens R. H. Peebles 1929-1 8 Riverside Tanguity Canyon, near palm springs. Comment
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Mar 2 2014
  OBI29880  Acmispon rigidus Melissa Luckow, Rhonda Riggins 1982-4-15 821 Riverside 1.5 mi SE of Pinyon Crest Rd, 9.6 mi NW jctn Hwy 74 and 371 in Paradise Valley along Hwy 74 1158 Comment
  SFV17338  Acmispon strigosus J. N. Hogue, J. D. Dilley 1998-4-23 108 .21 Riverside Chuckwalla Mountains. Corn Springs Wash at Corn Spring. 488 Comment
  UCR201612  Acourtia microcephala Scott D. White, Justin M. Wood 2008-6-18 12202 Riverside San Jacinto Mountains, hiking trail from K flat to Apple Canyon Road 1451 Comment
  GMDRC3746  Adenophyllum porophylloides J. Andre, T. La Doux 2009-3-1 11243 Riverside Little San Bernardino Mountains: Joshua Tree Natl. Park: south end of the Cottonwood Mtns near Pinkham Wash just N. of aquaduct just inside JTNP boundary, approx 7 mi. W. of S. entrance into park at Cottonwood. USGS 7.5 min. Quad: Cottonwood Basin 33 deg. 40.948' N 115 deg. 52.141' W. Elev. 1778 ft. 542 Comment
  RSA0121419  Adenophyllum porophylloides Duncan S. Bell, LeRoy Gross 2016-3-31 9189 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 6 air miles southeast of the summit of Martinez Mountain. 492 Comment
  CLARK-A1528-3971  Adenostoma fasciculatum John C. Roos 1948-5-22 3861 Riverside Reche Canyon 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-BC139869  Adenostoma sparsifolium H. M. Hall 1901-8-1 2638 Riverside In the vicinity of Chalk Hill 1402 Comment
  JEPS44821 Image available Adenostoma sparsifolium W. L. Jepson 1903-8-6 2284 Riverside San Jacinto Mt., Chalk Hill 1371 Comment
  POM78684  Adenostoma sparsifolium Albert J. Perkins 1916-9-9 s.n. Riverside Road, Idyllwild to Hemet. Comment
  UCR23515  Adenostoma sparsifolium John C. Roos 1936-9-15 2514 Riverside San Jacinto Mtns., Near the summit of the Pines to Palms Hwy 1494 Comment
  CLARK-A1528-33  Adiantum capillus-veneris E. M. Gifford 1938-1-9 8 Riverside Corona Comment
  CLARK-A1528-3539  Adiantum jordanii John C. Roos 1952-2-29 5363 Riverside Reche Canyon 457 Comment
  UCR182099  Aegilops cylindrica Tom Chester 2005-6-4 631 Riverside Peninsular Ranges; Santa Ana Mountains region, Santa Rosa Plateau Ecological Reserve: Coyote Trailhead, next to Hidden Valley Parking Lot on Tenaja Road just west of Clinton Keith Road 573.2 Comment
  SEINET5641187  Agave deserti var. deserti Wendy C. Hodgson, Andrew Salywon, Liz Slauson, Brandi Eide 2013-6-14 28527 Riverside Santa Rosa Mountains, off of highway 74 south of Palm Desert. 1234 Comment
  RSA249840  Agoseris retrorsa R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38105 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  RSA674612  Agrostis exarata Scott D. White 2000-8-5 8107 Riverside San Jacinto Mountains: Near Mountain Center. Unnamed ephemeral drainage (tributary to S Fork, San Jacinto River). 1402 Comment
  SEINET3916260  Agrostis exarata Scott D. White 2000-8-5 8107 Riverside San JACINTO MTS: Near Mountain Center. Unnamed ephemeral drainage (tributary to S Fork, San Jacinto River).; 0 1402 Comment
  UCR195140  Agrostis exarata A. C. Sanders, Tim Thomas 2008-8-1 35927 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1448 Comment
  UCR79266  Alchemilla occidentalis Steve Boyd, Orlando Mistretta 1992-4-22 6995 Riverside Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area. Indian Potrero Trail S from Verdugo Potrero to Indian Potrero on ridge between Talega Canyon and Nickel Canyon 701 Comment
  RSA411796  Allenrolfea occidentalis Anstruther Davidson 1903-5-3 s.n. Riverside Thermal. Comment
  RSA696215  Allenrolfea occidentalis Anonymous s.n. Riverside Colorado Desert. Comment
  RSA69679  Allenrolfea occidentalis F. W. Peirson 1926-1-31 6487 Riverside Dos Palmas, Colorado Desert. Comment
  SEINET3134334  Allionia incarnata N. H. Holmgren, R. E. Kern 1973-3-20 6411 Riverside Big Maria Mts., 12 airline miles north of downtown Blythe 290 Comment
  UCR74356  Allionia incarnata Theo Glenn 1991-5-2 91- 33 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  UCR9390  Allium fimbriatum var. fimbriatum D. H. Wilken 1966-3-26 769 Riverside Sonoran (Colorado) Desert/ San Bernardino Mtns., East ridge along Whitewater Canyon 610 Comment
  POM230625  Allium haematochiton I. W. Clokey 1935-4-18 6555 Riverside Gavilan Peak 600 Comment
  RSA524460  Allium haematochiton Steve Boyd, Timothy S. Ross, L. Arnseth, J. Bonilla 1990-4-3 4063 Riverside Vail Lake area, E flank of Big Oak Mtn, S of E summit. 610 Comment
  SEINET12043892  Allium haematochiton I. W. Clokey 1935-1 6555 Riverside Gavilan Peak 600 Comment
  CAS-BOT-BC472712  Allium lacunosum var. lacunosum Joy Keck 1935-4-19 3849 Riverside White Tank, S. of Twenty-nine Palms Comment
  SD215328  Allium marvinii Steve Boyd, Tim Ross et al 1990-4-3 4063 Riverside Vail Lake area, summit of 'Big' Oak Mountain at East end. 792 Comment
  SJSU7104  Allium munzii N. D. Addy 1962-4-16 Riverside by Railroad Canyon Rd c. 4-5 mi E of Elsinore 396 Comment
  CAS-BOT-BC475416  Allium praecox Scott D. White; Justin Wood 2008-3-25 11772 Riverside Perris/Elsinore BAsin; Foothills of Gavilan Hills at Temescal Wash, near Olsen Canyon, Morgan Property, Alberhill area 366 Comment
  SD233653  Allium triquetrum A. C. Sanders, T. B. Salvato 2003-4-3 25830 Riverside San Bernardino Valley/Upper Santa Ana River: Riverside, UCR campus, between East Campus Drive and Parking Lot 10. 334 Comment
  RSA411100  Allophyllum glutinosum Albert J. Perkins 1924-5-11 s.n. Riverside Trail to Santiago Peak, near Glen Ivy Hotel, N. Elsinor. Comment
  RSA522081  Allophyllum glutinosum Steve Boyd, T. S. Ross, Kyle A. Boyd 1989-6-24 3747 Riverside Vail Lake area, near summit of 'Little Oak' Mtn. along road. 627 Comment
  SEINET2444448  Allophyllum glutinosum Steve Boyd, Tim Ross 1990-5-11 4623 Riverside Vail Lake. Base of Agua Tibia Mtn, E of Dripping Springs campground of Cleveland National Forest, S of Hwy 79. 549 Comment
  POM13056  Allophyllum violaceum E. C. Jaeger 1921-6-20 s.n. Riverside Tahquitz Valley, San Jacinto Mts. Comment
  RSA5485  Alnus rhombifolia C. B. Wolf 1932-5-24 3649 Riverside 1/2 mile below the fish hatchery, Snow Creek, north base of San Jacinto Mts. 549 Comment
  UC455281  Alnus rhombifolia I. J. Condit 1910-6-23 Riverside Strawberry Valley San Jacinto Mts. (along stream) 1676 Comment
  UC729541  Alnus rhombifolia Carl B. Wolf 1932-5-24 3649 Riverside 1/2 mi below Fish Hatchey (n base of mts.); San Jacinto Mts., Snow Creek Canyon 548 Comment
  UCR196896  Alnus rhombifolia A. C. Sanders, D. L. Sanders 2008-9-27 36102 Riverside San Bernardino Valley Region, Santa Ana Riverbottom at Norco, between Corydon Av. (Fire Sta. 21) and a point NW of Vine St. & Halfmoon Ct. intersection, c. 1 mile NE of River Rd. bridge 165 Comment
  POM14623  Amaranthus albus H. Baer 1922-9-10 s.n. Riverside Lee Lake, Temescal canyon Comment
  POM319699  Amaranthus albus Patricia Wilder 1970-10-15 4789 Riverside Prado Dam at base of dam in Prado Flood Control Basin. East of Chino Hills 152 Comment
  RSA191389  Amaranthus albus E. W. Lathrop, Robert F. Thorne 1967-10-27 6676 Riverside 5 mi. NW of Murrietta, Santa Rosa Ranch. Comment
  RSA507509  Amaranthus albus S. A. Meyers 1988-6-4 s.n. Riverside Rancho California area, E of Winchester Road, between Auld Rd & Borel Road. 396 Comment
  RSA484737  Amaranthus fimbriatus A. C. Sanders 1988-10-22 8723 Riverside Pinyon Flats area Santa Rosa Mountains, along the trail about 1/2 mi. W of the Dolomite Mine. 1200 Comment
  UCR16084  Amaranthus retroflexus S. R. Szarek 1969-4-11 s.n. Riverside near intersection of Mission Blvd & Flemming St., Glen Avon Comment
  UC896700  Ambrosia acanthicarpa Lewis S. Rose 1935-12-21 35679 Riverside Cabazon; Colorado Desert 609 Comment
  UCR132701  Ambrosia confertiflora A. C. Sanders 1996-5-14 18169 Riverside Moreno Valley (Edgemont), east side of I-215 at Alessandro Blvd. 470 Comment
  CAS-BOT-BC22594  Ambrosia dumosa M. McCollum 1976-6-10 2008 Riverside 4 mi. W of Desert Hot Springs 304 Comment
  CAS-BOT-BC22600  Ambrosia dumosa P. H. Raven 1960-3-16 14843 Riverside 2.2 miles W of Desert Center Comment
  LA202895  Ambrosia dumosa Carl Epling; 1927-3-27 sn Riverside Thousand Palms Comment
  SBBG29419  Ambrosia dumosa D. Myrick 1968-3-4 1801 Riverside Desert Hot Springs 304 Comment
  SBBG35061  Ambrosia dumosa T. L. Secrest 1948-4-7 Riverside above Whitewater 304 Comment
  UC1539707  Ambrosia dumosa Chas. B. Fiker 1946-4-18 3417 Riverside w side Colorado Desert Comment
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Mar 23 2014
  UCR214278  Ambrosia dumosa A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37479 Riverside Sonoran (Colorado) Desert, SE side of McCoy Mountains, upper part of wash c. 4.5 mi. NW of Blythe Airport, c. 3.5 mi. ENE of McCoy Peak 244 Comment
  UCR214716  Ambrosia dumosa A. C. Sanders 2010-3-23 37545 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at SW foot of Palen Mountains 130 Comment
  UCSB10231  Ambrosia dumosa Gunnerson, R. 1963-3-20 Riverside Whitewater Canyon, Colorado Desert Comment
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Mar 27 2014
  CAS-BOT-BC55618  Ambrosia psilostachya H. M. Hall 1901-8-1 s.n. Riverside Vicinity of Riverside 304 Comment
  UCD128936  Ambrosia salsola G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2744 Riverside Chuckwalla Mountains. Graham Pass Road, 10.6 miles SSW of Chuckwalla Valley Road. 487 Comment
  SEINET10797869  Ambrosia salsola David B. Dunn, Howard Brown 1947-2-9 Dunn 2856 Riverside Pushawalla Canyon, Indio Hills. In dry wash bed. Comment
  JEPS39430  Ambrosia salsola var. salsola W. L. Jepson and W. C. Mathews 1914-5-17 5997 Riverside n of Indio; Colorado Desert, Pinyon Well Comment
  RSA0034425  Amelanchier utahensis Carl B. Wolf 1931-5-11 s.n. Riverside Near Pipe Creek, above Hemet Valley, San Jacinto Mountains. 1677 Comment
  LA210921  Amelanchier utahensis C. B. Wolf; 1931-5-11 1955 Riverside SAN JACINTO MOUNTAINS, near Pipe Creek, above Hemet Valley. 1676 Comment
  JEPS45999  Ammannia robusta W. L. Jepson 1912-11-1 5270 Riverside near Blythe (Palo Verde Valley); Palo Verde Valley 45 Comment
  UCR43346  Amorpha californica R. F. Thorne, Steve Boyd, E. W. Lathrop 1985-7-18 61186 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: Cole Canyon. 534 Comment
  SD229148  Amorpha californica var. californica Dick Schwenkmeyer 2012-8-7 784 Riverside Santa Rosa Mountain Cabin, 10 miles southeast of the intersection of Highway 74 and Santa Rosa Mountain road. 2305 Comment
  CAS-BOT-BC177262  Amorpha fruticosa H. M. Hall 1901-6-1 2121 Riverside Eastern base, along the borders of the Colorado Desert Comment
  UC13288  Amorpha fruticosa H. M. Hall June, 1901 2121 Riverside San Jacinto Mts.; e base, along borders of Colorado Desert Comment
  UC1928630  Amorpha fruticosa Steve Boyd, Aydee Virgen 2004-4-13 10849 Riverside Peninsular Ranges; Santa Ana Mountains region; San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon. Comment
  JOTR35928  Amsinckia intermedia De Groot, Sarah J., Jessica Chu, Loraine Washburn 2013-3-22 6876 Riverside Joshua Tree National Park. Cottonwood Spring; Fan palm oasis and surrounding slopes. 914 Comment
  RSA523542  Amsinckia intermedia Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4002 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  UCR250214  Amsinckia intermedia A. C. Sanders 2014-4-8 40978 Riverside Peninsular Range, Temescal Canyon, along Temescal Canyon Rd. c. 280 m NE of the I-15 crossing, near mouth of Mayhew Canyon 317 Comment
  RSA0089938  Amsinckia menziesii D. E. Harvey 1969-4-20 690420 -2 Riverside Juniper Flats at Stubbe Springs parking area. Joshua Tree National Monument. Comment
  UCR133676  Anagallis arvensis John F. Green, S. J. Myers 2003-6-25 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  UCR173931  Ancistrocarphus filagineus A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32563 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 587 Comment
  CAS-BOT-BC499167  Anemopsis californica Mitch Provance 2011-6-6 17008 Riverside Badlands: San Timoteo Canyon, El Casco area, N of San Timoteo Canyon Rd and E of Woodhouse Rd 626 Comment
  RSA503858  Anemopsis californica N. C. Cooper 1949-6-1 3958 Riverside Elsinore. 457 Comment
  JEPS22835  Anisocoma acaulis P. A. Munz and I. M. Johnston 1922-5-19 5418 Riverside Hemet Valley; San Jacinto Mts. 1386 Comment
  RSA741202  Anisocoma acaulis Scott D. White, Justin M. Wood 2008-5-15 11964 Riverside San Jacinto Mountains: Garner Valley, NW of Fobes Ranch Rd and NE of Hwy 74, valley bottom. 1357 Comment
  SEINET10721353  Antennaria David B. Dunn 1946-8-18 Dunn 2759 Riverside Comp. on open dry pine floor. On East trail from Round meadow to Mt. San Jacinto Mts. 2743 Comment
  POM14074  Antirrhinum coulterianum Philip A. Munz, D. D. Keck 1922-4-14 4999 Riverside East of White Water Ranch. 244 Comment
  POM17948  Antirrhinum coulterianum Philip A. Munz 1923-6-14 7106 Riverside Trail from Glen Ivy to Santiago Peak. 1006 Comment
  RSA633869  Antirrhinum coulterianum Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38103 Riverside San Jacinto Mountains: San Bernardino National Forest. Above James Reserve in Hall Canyon. 1677 Comment
  POM47200  Antirrhinum filipes Mary F. Spencer 1920-4-7 s.n. Riverside In desert sand in chaparral 213 Comment
  RSA80435  Antirrhinum filipes F. W. Peirson 1920-2-16 1101 Riverside Palm Canyon stream below the canyon, Palm Springs. region Comment
  UCR107893  Antirrhinum nuttallianum G. F. Pratt 1997-3-8 s.n. Riverside Box Springs Mtns, S-facing slopes near highest peak, right around radio towers. 915 Comment
  UCR108792  Antirrhinum nuttallianum Heidi A. Haid 1969-3 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR35227  Antirrhinum nuttallianum L. B. Ziegler 1976-6-11 548 Riverside From hill SE of Hemet in the foothills of of the San Jacinto Mtns. 549 Comment
  JEPS83386  Antirrhinum nuttallianum subsp. nuttallianum David M. Thompson 1983-5-8 297 Riverside sw end Bernasconi Hills (Lake Perris Recreational Area, se entrance, end of road to left, on horse trail (marked as such) start at picnic area, next to path not far above dam); Lake Perris Recreational Area 487 Comment
  UCR25370  Antirrhinum nuttallianum subsp. nuttallianum John C. Roos 1952-4-13 5517 Riverside Riverside, Box Springs Mtns above Canyon Crest Heights 457 Comment
  UC310839  Apiastrum angustifolium Philip A. Munz 1925-5-20 9819 Riverside 2 mi w of Dripping Spring; Southern California 426 Comment
  SD187326  Apium graveolens Scott D. White, Angelia Carey 2004-5-7 10317 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent foothills. 548 Comment
  RSA66764  Arabis perennans E. C. Jaeger 1922-6-29 5443 Riverside Tahquitz Valley, San Jacinto Mts. 2104 Comment
  RSA629134  Arctostaphylos Jon E. Keeley 1992-7-16 16568 Riverside Red Mountain Road/Stanley Road, 11.7 km east of R3 on Stanley Road. 975 Comment
  RSA629139  Arctostaphylos Jon E. Keeley 1992-7-16 16562 Riverside Red Mountain Road/Stanley Road, 11.7 km east of R3 on Stanley Road. 975 Comment
  RSA629480  Arctostaphylos glandulosa Jon E. Keeley 1978-9-16 7256 Riverside Road to Black Mountain off Highway 243. 1600 Comment
  UCR231046  Arctostaphylos glandulosa A. C. Sanders, Kent Beaman 2011-9-27 39923 Riverside Peninsular Range; Santa Ana Mtns., Main Divide Truck Trail, 0.95 km ENE (78 deg. ) of Santiago Peak summit 1402 Comment
  UCR275944  Arctostaphylos glandulosa T. B. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-26 3789 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
  CAS-BOT-BC24913  Arctostaphylos glandulosa subsp. adamsii Nancy Ryan Zabriskie; Walter Zabriskie 1970-3-25 259 Riverside c. 5 mi. up Santa Rosa Mountain road from State Highway 74. 1524 Comment
  RSA612363  Arctostaphylos glandulosa subsp. adamsii D. L. Banks, Joe Moreno 1997-2-5 1259 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. The headwaters of Pala Creek at the southern extremity of the Reservation, north the Riverside / San Diego County line border,, including a large area of vernally wet grassland at the extreme southwestern corner of the Reservation. 390 Comment
  CLARK-A1045-104  Arctostaphylos glauca George K. Helmkamp 1977-3-20 Riverside San Jacinto Mountains flats above Deep Canyon; ; Palm Desert 15'Q 1066 Comment
  JEPS2738 Image available Arctostaphylos glauca W. L. Jepson 1914-5-18 6004 Riverside Pinon Well grade Colorado Desert, Pinon Well Mts.; Pinon Well grade, Pinon Well Mts., Colorado Desert Comment
  RSA612823  Arctostaphylos glauca D. L. Banks 1997-3-1 1346 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. Pechanga Creek, east of the ''Fiesta Grounds'' to the spring on the northern fork of Pechanga Creek at the eastern end of the Reservation. 423 Comment
  RSA631747  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19288 Riverside Highway 79, at Radec. 580 Comment
  RSA631767  Arctostaphylos glauca Jon E. Keeley 1992-4-17 15076 Riverside End of Woodchuck Road, Woodchuck Resort. 2 km south of Highway 79. 670 Comment
  RSA632649  Arctostaphylos glauca Jon E. Keeley 1992-7-16 16560 Riverside Red Mountain Road/Stanley Road, 11.7 km east of R3 on Stanley Road. 975 Comment
  RSA633680  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16658 Riverside Road to Santa Rosa Mountain (7S02), 8.7 km south of Highway 74. 1935 Comment
  RSA633685  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16680 Riverside Road to Santa Rosa Mountain (7S02), 9.3 km south of Highway 74. 1990 Comment
  RSA633736  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20119 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  RSA720445  Arctostaphylos patula Naomi Fraga, Valentine Arvizu, Elizabeth Kempton, Tim Thibault 2006-6-7 1696 Riverside East of Fobes Ranch Road, about 1/2 mile south of Fobes Ranch. 1616 Comment
  UCR188223  Arctostaphylos patula Naomi Fraga, V. Arvizu, Elizabeth Kempton, T. Thibault 2006-6-7 1696 Riverside San Jacinto Mountains, east of Fobes Ranch Road, about 1.5 mi south of Fobes Ranch 1616 Comment
  OBI30235  Arctostaphylos pringlei subsp. drupacea Trudy R. Ericson 1976-5-8 545 Riverside Coll. on Thomas Mtn Loop rd, off State hwy 74, approx. 4 mi from intersection of Loop rd with St. 74 just S of Lake Hemet, San Bernardino NF 1524 Comment
  RSA635692  Arctostaphylos pringlei subsp. drupacea Jon E. Keeley 1992-7-16 16596 Riverside Hwy 371 & Burnt Valley Rd. San Jacinto Mtns. 1250 Comment
  CAS-BOT-BC46337  Arctostaphylos pungens John Thomas Howell 1960-3-24 35149 Riverside Keene Camp Summit, Pines to Palms Hwy. San Jacinto Mts. 1493 Comment
  CAS-BOT-BC46339  Arctostaphylos pungens Peter H. Raven 1958-5-18 12981 Riverside 3.0 mi. e. of junction to Aguanga, San Jacinto Mts. Comment
  UCR208229  Arctostaphylos pungens C. B. Wolf 1931-5-11 1953 Riverside San Jacinto Mtns., near Pipe Creek, above Hemet Valley 1677 Comment
  UCSB26646  Arctostaphylos pungens Wilken, Dieter; Werner, Walter 1969-5-8 Riverside Keen Camp Summit on the Palms-to-Pines Highway, San Jacinto Mtns. 1493 Comment
  RSA636001  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19543 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636008  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19555 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636154  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19539 Riverside W of Temecula, N-facing slopes off Carancho Rd., 6 km NW of De Luz, eastern Santa Margarita Mtns. 440 Comment
  RSA636159  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18813 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  SDSU17431  Arctostaphylos rainbowensis C. Matt Guilliams 2007-8-2 408 Riverside Santa Margarita Ecological Reserve, along 'Highlands Trail' at northern rim of mesa-top. 654 Comment
  SDSU18354  Arctostaphylos rainbowensis C. Matt Guilliams 2007-6-21 372 Riverside 15 kilometers east of Temecula near Tenaja Road. From Tenaja, south on Harkey Road, east on Avenida Presta, south on Calle Viento, a dirt road on slope above drainage. 640 Comment
  CAS-BOT-BC207134  Argythamnia lanceolata Marcus E. Jones 1906-4-27 s.n. Riverside Indio Comment
  UC572299  Aristida adscensionis H. S. Yates 1937-3-23 6448 Riverside 15 mi nne Mecca; Thermal Quadrangle 457 Comment
  RSA86722  Aristida adscensionis var. abortiva F. W. Peirson 1921-3-23 2374 Riverside Deep Canyon south of Coachella Valley 335 Comment
  POM310162  Aristida adscensionis var. modesta Hulda Crooks 1946-3-2 271 Riverside Palm Springs area. 139 Comment
  POM96836  Aristida adscensionis var. modesta F. M. Reed 1926-5-8 5324 Riverside Rocky hill near [Good Hope] Mine. Comment
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Jul 30 2006
  SEINET239055  Aristida divaricata A. C. Sanders, S. D. Boyd; Mitch Provance J. Ross 1998-10-25 22284 Riverside San Jacinto Mtns.: Pine Meadow along Hwy 74 in Garner Valley (eastern) 1 mile. NW of Hwy 371 junction to Anza (Butterfl 1441 Comment
  UCD56512  Aristida purpurea J. C. Roos 1965-8-15 s.n. Riverside San Jacinto Valley, Gilman Hot Springs. Comment
  UCR21296  Aristida purpurea var. longiseta A. C. Sanders, K. Berg 1980-5-1 1363 Riverside San Jacinto Mountains, Garner Valley. Dry bench above valley floor 0.25 mi NW of Kenworthy Ranger Station 1433 Comment
  CAS-BOT-BC137532  Aristida purpurea var. nealleyi Philip A. Munz 1946-10-20 11575 Riverside Palms to Pines Highway 11.5 miles south of Palm Springs to Indio Road. 1036 Comment
  RSA0124743  Aristida purpurea var. wrightii Duncan S. Bell, LeRoy Gross 2016-3-9 8842 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; central section of range, approximately 1.75 air miles north of Gucci Spring. 551 Comment
  IRVC472  Artemisia californica R. H. Whittaker, W. A. Niering 1963-6-6 SJ 223 248 Riverside San Jacinto Mtns: San Jacinto Ridge 655 Comment
  SD239568  Artemisia californica A. C. Sanders 2010-11-18 38692 Riverside Peninsular Range; western Gavilan Hills: eastern edge of Corona, north end of radio tower ridge, 1.85 mi. NNE (25a^z) of El Cerrito, 1 mi. SSE (143a^z) of Home Gardens, just east of large rock quarry (Corona South 7.5'Q) 398 Comment
  UCR116674  Artemisia dracunculus A. C. Sanders, Carolyn Washburn 2001-5-10 24238 Riverside Perris-Aguanga Basin, 1 mi. south of Winchester on the east side of Hwy 79 (Winchester Rd.) just south of Patton Ave. 488 Comment
  RSA774721  Artemisia ludoviciana subsp. albula Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4454 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
  UCSB38400  Artemisia nova Ziegler, Louis 1964-7-11 Riverside Two miles northeast of Kenworthy Ranger Station Comment
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Apr 22 2013
  CAS-BOT-BC222818  Asclepias albicans Roxana S. Ferris; Rimo Bacigalupi 1958-3-19 13262 Riverside U. S. gypsum mine property in Little Maria Mts., 2 miles above Midland Post Office Comment
  SEINET3081972 Image available Asclepias californica Andrew C. Sanders, B. Pitzer 1986-4-30 6488 Riverside San Jacinto Mtns; head of Bee Canyon along Bee Canyon Road, 1.7 mi. above mouth of canyon at the San Jacinto River Valley. 795 Comment
  RSA263781  Asclepias eriocarpa Robert Harvey 1959-8-4 157 Riverside Tin Mine Canyon Calif. near Corona. 610 Comment
  UC22976  Asclepias erosa H. M. Hall 1897-7-30 759 Riverside near base e side San Jacinto Mts. 1524 Comment
  UCR224181  Asclepias erosa Justin M. Wood, Dustin M. Ray 2010-10-21 2999 Riverside Colorado (Sonoran) Desert, Chuckwalla Valley northeast of Victory Springs and 0.9 km east of Kaiser Road on unmarked 4WD road 198 Comment
  JEPS5077  Asclepias subulata W. L. Jepson 1928-4-23 12547 Riverside Shaver Well Colorado Desert Comment
  RSA795937  Asclepias subulata Duncan S. Bell 2009-4-18 259 Riverside Arica Mountains: southeast side of range, approximately 0.5 air mile southwest of Priests Well. 311 Comment
  SD56842  Asclepias subulata Darley F. Howe 1963-5-15 3480 Riverside 26.5 miles west of Desert Center on California #197 455 Comment
  RSA180353  Aspidotis californica E. W. Lathrop 1960-6-7 4863 Riverside 14 miles W of Murrieta Comment
  UCR19474  Aspidotis californica John C. Roos 1952-4-9 5499 Riverside San Bernardino Basin Region, Riverside, north side of Mount Rubidoux 381 Comment
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May 21 2011
  CAS-BOT-BC177462  Astragalus aridus Roxana S. Ferris 1953-3-9 12599 Riverside Near junction of U.S. 60 & 70 with Desert Hot Springs road Comment
  UC81364  Astragalus aridus C. R. Orcutt 1889-4-1 2264 Riverside Colorado Desert Comment
  UCR245966  Astragalus aridus Duncan S. Bell 2009-3-9 111 Riverside Arica Mountains, east side of the range, west side of Rice Valley, c. 2.7 air miles NE of Priest Well, or c. 3.3 air miles SE of ghost town of Rice 244 Comment
  UCR146120  Astragalus bicristatus Michael Denslow, M. W. Denslow Sr., Naomi Fraga, Valerie Soza, LeRoy Gross, Firoozeh Navid- Ara 2003-7-16 1460 Riverside Peninsular Ranges; San Jacinto Mtns, Santa Rosa Mountains, along 7S02 Road above Virgin Spring 2379 Comment
  CAS-BOT-BC177720  Astragalus crotalariae E. A. McGregor 1917-3-19 2051 Riverside Indio Comment
  RSA90156  Astragalus didymocarpus F. W. Peirson 1914-1 576 Riverside Whitewater, east of Cabezon Comment
  UCSB37855  Astragalus douglasii Sanders, A. 1980-7-18 Riverside Thomas Mountain; Thomas Mtn. campground to the summit at the lookout; T6S, R3E, W1/2, Sec.28 2072 Comment
  VVC2870  Astragalus douglasii var. douglasii Tim Thomas, P. J. MacKay 2010-4-12 5022 Riverside San Bernardino Mtns, Whitewater River; Mouth of Catclaw Flat, at the Paw. 878 Comment
  JEPS54610  Astragalus douglasii var. parishii W. L. Jepson 1901-5-19 1301 Riverside Strawberry Valley Mt. San Jacinto, Strawberry Valley Comment
  RSA642086  Astragalus douglasii var. parishii Orlando Mistretta, Mark Elvin 1995-6-19 1777 Riverside Highway 74. 1418 Comment
  RSA682127  Astragalus douglasii var. parishii Marcus E. Jones 1926-6-20 s.n Riverside 12 miles north of Idyllwild, San Jacinto Mountains. Comment
  SEINET3132644  Astragalus douglasii var. parishii R. W. Spellenberg, D. Jackson 1972-5-19 2823 Riverside 3.8 mi SE of Lake Hemet, along California State Hwy 74 1402 Comment
  RSA415713  Astragalus filipes N. C. Cooper 1944-7-15 1595 Riverside Palms to Pine Hwy 1463 Comment
  UC597637  Astragalus filipes Philip A. Munz 1937-5-31 15125 Riverside Kenworthy , Kenworthy (San Jacinto Mts.) 1371 Comment
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Mar 25 2011
  CAS-BOT-BC186907  Astragalus insularis var. harwoodii Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center Comment
  RSA0037331  Astragalus insularis var. harwoodii John C. Roos 1958-3-15 s.n. Riverside Chuckwalla Mtns., 3 miles SE of Desert Center. Comment
  RSA415579  Astragalus lentiginosus N. C. Cooper 1949-4-8 3321 Riverside Blythe. 259 Comment
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Nov 20 2011
  CAS-BOT-BC187111  Astragalus lentiginosus var. borreganus John Thomas Howell 1928-3-11 3439 Riverside 6 miles se. of Garnet Station, Coachella Valley, Colorado Desert 152 Comment
  UC667327  Astragalus nuttallianus var. cedrosensis Annie M. Alexander and Louise Kellogg 1941-5-6 2126 Riverside 13 mi sw 29 Palms (Joshua Tree National Monument); Joshua Tree National Monument 1371 Comment
  RSA49388  Astragalus nuttallianus var. imperfectus P. A. Munz 1949-4-11 12995 Riverside North base of Eagle Mtns. 945 Comment
  CAS-BOT-BC194164  Astragalus palmeri P. A. Munz; D. Keck 1922-4-13 4935 a Riverside Eagle Mts., Colorado Desert Comment
  JOTR16678  Astragalus palmeri Wanrow, E. 1968-5-6 s.n. Riverside Joshua Tree National Park. EUREKA PEAK Comment
  CAS-BOT-BC194132  Astragalus pomonensis Joseph Andorfer Ewan; Carl Epling 1933-5-12 7610 Riverside 5 mi. above Corona, Temescal Canyon Comment
  CAS-BOT-BC194143  Astragalus pomonensis Marcus E. Jones 1900-7-13 s.n. Riverside Dripping Spring, near Temecula 365 Comment
  CAS-BOT-BC194169  Astragalus pomonensis John F. Green 2005-3-7 s.n. Riverside Wildomar, west of Grand Ave off Sweet Nectar Rd., Peninsular Range, Wildomar 7.5' Q 414 Comment
  JEPS54801  Astragalus pomonensis W. L. Jepson 1914-5-23 6085 Riverside Conchilla Desert , Conchilla Desert (Colorado Desert) Comment
  RSA0003063  Astragalus pomonensis Marcus E. Jones 1882-4-24 3166 Riverside Temecula Comment
  LA205752  Astragalus tricarinatus Marcus E. Jones; 1929-3-9 Riverside San Bernardino Mountains, Whitewater Canyon Comment
  RSA779954  Astragalus tricarinatus Duncan S. Bell, Jennifer Pilapil, Terry Higgins 2011-6-2 2628 Riverside In a side canyon off of the West Fork of Mission Creek approximately 0.5 air mile south of where the Pacific Crest Trail crosses the West Fork of Mission Creek. 944 Comment
  SD81620  Athyrium filix-femina var. cyclosorum Louis C. Wheeler 1931-10-3 198 Riverside 1 mile northwest of Tahquitz Peak, San Jacinto Mountains 1860 Comment
  UC811443  Athyrium filix-femina var. cyclosorum I. W. Clokey and E. G. Anderson 1935-8-21 6504 Riverside Fuller's Creek; San Jacinto Mts 1500 Comment
  UCR241826  Athysanus pusillus A. C. Sanders, Timothy W. Chumley 2013-4-5 40779 Riverside Peninsular Range, Temescal Canyon, around Ivyglen electrical substation near where Temescal Canyon Rd. passes under I-15, between substation and Campbell Ranch Rd. 328 Comment
  UCR97699  Athysanus pusillus A. C. Sanders, G. Helmkamp 1997-3-15 19934 Riverside Lake Skinner area: hill (1864) east of Skinner Lake at NW end of Tucalota Hills 518 Comment
  UCR112093  Atrichoseris platyphylla A. C. Sanders, T. B. Salvato, Mitch Provance 2000-4-25 23367 Riverside Coachella Valley, east side of the Coachella Canal between I-10 and Ave. 56 (Airport Rd.), 3 miles east of Thermal 15 Comment
  RSA5455  Atriplex canescens C. B. Wolf 1932-10-13 s.n. Riverside Cottonwood Springs. Eagle Mountains 290 Comment
  SEINET3090648 Image available Atriplex canescens H. S. Gentry 1954-7-24 14249 Riverside Aguanga Comment
  SEINET4208628  Atriplex canescens Howard C. Stutz 1980-11-24 8892 Riverside 15 mi. N of Indio.; 0 Comment
  UC850752  Atriplex canescens Ivan Johnston Apr 4 1917-Apr 6 1917 1033 Riverside near Palm Springs; Colorado Desert Flora, near Palm Springs 182 Comment
  UCR103491  Atriplex coronata var. notatior D. E. Bramlet 1995-6-8 2438 Riverside San Jacinto Valley, Mystic Lake Duck Club, on berms & on the SW duck ponds within the club,1.71 km east of Davis Road and 46 m south of the access road, 640m north of the San Jacinto River Channel 436 Comment
  UCR66967  Atriplex coronata var. notatior D. E. Bramlet 1990-7-20 2054 Riverside Perris-Aguanga Basin region, San Jacinto Wildlife Area; old San Jacinto River channel, c. 880 m NE of Davis Rd. and c. 400 m SW of first waterfowl pond. 476 Comment
  UCR112576  Atriplex davidsonii D. E. Bramlet 1998-6-22 2638 Riverside Upper Salt Creek Reserve, 6.9 km West of Hemet and 76m east of California Avenue, approximately 671m north of Setson Avenue. 456 Comment
  UCR211717  Atriplex davidsonii Fred M. Roberts, Linda Anton 2005-7-11 6259 Riverside Perris Basin, San Jacinto Valley, Upper Salt Creek watershed southwest of Hemet, 1.5 km southwest of the west end of Hemet Ryan Airport, south of Stetson and east of California Street 454 Comment
  RSA0013398  Atriplex elegans var. elegans A. C. Sanders, John F. Green 2012-6-25 40307 Riverside Temescal Canyon near I-15 crossing of Temescal Canyon Rd. and Temescal Creek, c. 2.6 km SE of Lee (Corona) Lake 361 Comment
  SBBG129044  Atriplex elegans var. elegans R. E. Riefner Jr. 2013-8-17 13 -190 Riverside City of Lake Elsinore, along Collier St and Hwy 74 S to Temescal Wash 393 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
  CDA23270  Atriplex glauca R. E. Riefner Jr. 2002-12-12 02 -521 Riverside Corona; SW side of I-15, along Magnolia Ave. on-ramp. Comment
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Dec 13 2012
  RSA2107  Atriplex hymenelytra Ernest Braunton 1929-01 s.n. Riverside Painted Canyon, Mecca. 46 Comment
  UCR148037  Atriplex hymenelytra Steve Boyd, Et al. 2004-5-14 11247 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains, western base of the Chocolate Mountains, small canyon c. 1.25 mi due north of Imperial Co. line and c. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range 549 Comment
  UCR42488  Atriplex hymenelytra P. J. Leary 1975-4-13 1059 Riverside Sonoran (Colorado) Desert, just SW of Pinto Well, Joshua Tree National Monument 366 Comment
  POM278761  Atriplex lentiformis Grant D. Brown 1949-12-15 480 Riverside Mecca Comment
  RSA557317  Atriplex rosea Julie Greene, Steve Boyd, D. E. Bramlet, H. Flores, H. Ochoterana 1993-7-9 1427 Riverside San Jacinto Wildlife Area: South of visitor center, by waterfoul kiosk, east of Davis Rd. 433 Comment
  SDSU13515  Atriplex semibaccata W. Miller with C. Mosse 1972-7-20 Riverside Under oak tree where north road comes into river bottom nor th of beaver dam. Comment
  CAS-BOT-BC176761  Atriplex serenana var. serenana A. C. Sanders; Mitch Provance; B. Pitzer 2000-9-27 23681 Riverside Santa Ana River Valley: SW side of Mt. Rubidoux, NW of intersection of Tequesquite Ave. and Gregory Rd., near confluence of Arroyo Tesquesquite and the river 232 Comment
  RSA660500  Atriplex suberecta A. C. Sanders, K. C. Rose 1998-5-21 21854 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
  RSA495453  Avena barbata Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-18 2981 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  UCR232797  Avena fatua John F. Green 2008-4-16 0408- 40 Riverside Peninsular Range; Perris-Aguanga Valley, SW of Romoland, powerline route north of McLaughlin Rd. between Dawson Rd. and I-215 Fwy 436 Comment
  SDSU14014  Azolla filiculoides Dinna Estrella, M. G. Simpson 2002-4-20 29 Riverside Santa Margarita Ecological Reserve. River, ca. 1/4 mile east of junction with Via Tornado Road. 229 Comment
  POM320339  Baccharis emoryi Patricia Wilder 1971-11-17 5320 Riverside Along the Santa Ana River at end of Pedlay Sreet, north of Norco. 198 Comment
  LA203015  Baccharis salicifolia C. L. Hitchcock; 1940-4-12 6048 Riverside 8 mi. NW of Elsinore 457 Comment
  POM4663  Baccharis salicifolia F. L. Robinson, Crocker 1916-3-26 s.n. Riverside Santa Ana Mts, near Murrietta Comment
  RSA93169  Baccharis salicifolia F. W. Peirson 1920-2-15 2316 Riverside Palm Springs, Tahquitz Camp. Comment
  CAS-BOT-BC99819  Baccharis sarothroides Edmund C. Jaeger 1938-11-2 s.n. Riverside gully near Gulliday Well, south-west base of Chuckawalla Mts. 274 Comment
  CAS-BOT-BC99873  Baccharis sergiloides L. A. Greata 1904-9-1 s.n. Riverside Banning Comment
  SD229071  Baccharis sergiloides Dick Schwenkmeyer 2013-6-11 907 Riverside Approx. 1.5 miles north od highway 74 and Royal Carrizo Road intersection. 854 Comment
  UCR89540  Baccharis sergiloides Bern Schwenn 1994-5-18 s.n. Riverside Sonoran (Colorado) Desert, Joshua Tree National Monument, north side of the Eagle Mountains, site of Conejo Well 1021 Comment
  PASA2175  Baeria chrysostoma var. gracilis Frank W. Peirson 1922-4-29 Riverside Lake Elsinore 374 Comment
  CAS-BOT-BC295897  Bahiopsis parishii 1905-4-1 5877 Riverside Col. Desert Comment
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Sep 3 2017
  OBI15350  Bahiopsis parishii H. E. McMinn 1935-6-27 4063 Riverside Palms to Pines Comment
  RSA79172  Bahiopsis parishii Philip A. Munz, Percy C. Everett 1952-5-2 16243 Riverside Dry Morongo Wash, n.w. end of Coachella Valley 457 Comment
  CAS-BOT-BC99971  Baileya pauciradiata Aven Nelson; Ruth A. Nelson 1939-3-29 3313 Riverside Between Mecca and Hidden Springs Comment
  POM350660  Baileya pauciradiata George B. Grant 1906-4-20 6709 Riverside Palm Springs. Comment
  POM350665  Baileya pauciradiata George R. Johnstone 1930-4-13 s.n. Riverside 1000 Palms. Comment
  SD227726  Baileya pauciradiata Scott D. White 1998-4-15 6295 Riverside La Quinta/Palm Desert Area: Near Miles Ave. crossing over Whitewater River Channel.Degraded dunes N of Miles Ave. and W of Washington St. 29 Comment
  CAS-BOT-BC172814  Bebbia juncea A. C. Sanders; T. B. Salvato; Matthew Malle; Jonas Winbolt 2010-5-17 38384 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
  UCR92620  Bebbia juncea Scott D. White 1995-8-23 3568 Riverside San Jacinto Valley, San Jacinto River, just north of City of San Jacinto boundary, c. 1 mi SE of bridge at State Street 463 Comment
  CAS-BOT-BC100125  Bebbia juncea var. aspera Geo. B. Grant 1906-4-20 6730 Riverside Palm Springs Comment
  JEPS20769  Bebbia juncea var. aspera Roxana S. Ferris and Rimo Bacigalupi Mar 19 1958-Mar 25 1958 13263 Riverside divide betw. Little Maria and Big Maria Mts., .5 mi s of Styx siding near Midland Comment
  SDSU13510  Bebbia juncea var. aspera W. Miller with C. Mosse 1972-8-9 Riverside Comment
  UC665555  Bebbia juncea var. aspera Annie M. Alexander and Louise Kellogg 1941-5-12 2158 Riverside road to Black Eagle Mine (Eagle Mountains, Colorado Desert); Colorado Desert, Eagle Mountains 777 Comment
  RSA0040033  Beloperone californica W. Marquart 1938-3-12 s.n. Riverside Ten mi. west of Blythe. Comment
  UCR92702  Berberis dictyota A. C. Sanders, O. F. Clarke, et al. 1996-4-13 18031 Riverside Riverside: Box Springs Mtns, crest of range in vicinity of park headquarters, head of Two Trees Canyon 700 Comment
  CLARK-A1528-2269  Berberis nevinii John C. Roos 1966-2-10 Riverside San Timoteo Canyon Comment
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Mar 12 2014
  UCR35179  Berberis nevinii L. B. Ziegler 1977-9-20 570 Riverside Peninsular Range, Vail Lake, hills on south side of lake 488 Comment
  UCR59772  Berberis nevinii Steve Boyd, T. S. Ross, L. Arnseth 1989-3-18 3001 Riverside Vail Lake Area, Temecula Creek Cyn below Vail Lake dam 457 Comment
  JEPS7826  Bernardia myricifolia Rimo Bacigalupi with L. R. Heckard 1953-5-5 4075 Riverside w. slopes Deep Canyon (ca. 1/2 way betw. Santa Rosa Mts. & San Jacinto Mts., above Seven Level Hill, along Palms-to-Pines Hwy.(CA #74), bordering w. side Coachella Valley); w. Riverside Co., w. Coachella Valley, Deep Canyon 1066 Comment
  UCR89595  Bernardia myricifolia Bern Schwenn 1994-5-14 s.n. Riverside Sonoran (Colorado) Desert, Joshua Tree National Monument, north side of the Eagle Mountains, site of Conejo Well, along old road/trail c. 100 yards north of well site 1021 Comment
  SEINET7048188  Bernardia myricifolia Steven R. Hill 2001-5-3 33696 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
  CLARK-A1528-171  Bidens frondosa John C. Roos 1951-9-25 5265 Riverside Riverside 259 Comment
  RSA319720  Bidens laevis Charlotte M. Wilder 1970-10-15 4808 Riverside Prado Dam in Prado Flood Control Basin on edge of river bordering old roadbed E of dam. 122 Comment
  RSA652924  Bloomeria crocea A. C. Sanders 1997-5-1 20623 Riverside along horse trail in southern part of Lake Skinner Park, west of Tucalota Hills and east of Warren Rd. 488 Comment
  UCR232024  Bloomeria crocea John F. Green 2008-4-24 11- 02 Riverside Peninsular Range; SE Gavilan Hills, SW of Perris along Hwy 74, vicinity of Kimes Ln. 511 Comment
  UCR16047  Bloomeria crocea var. crocea K. Stolte 1978-5-12 s.n. Riverside 1 mi south of the junction of Hwy 60 and Central Ave., c. 200 m east of Central Ave. in Riverside Comment
  LA204233  Boechera xylopoda Flora Murray Scott; April 1928 sn Riverside Whitewater 1828 Comment
  UCR18393  Boerhavia coccinea A. C. Sanders, J. Zabriskie 1979-8-18 0849 Riverside Sonoran (Colorado) Desert, slopes of Santa Rosa Mountains, on Hwy 74. 488 Comment
  JOTR29194  Boerhavia intermedia La Doux, Tasha 2005-9-8 1307 Riverside Joshua Tree National Park. Fried Liver Wash 395 Comment
  UCR215582  Boerhavia triquetra Tasha La Doux, Jim Andre 2008-9-16 337 Riverside Mojave Desert, Joshua Tree National Park, c. 0.3 mi. NW of Indian Cove Campground 934 Comment
  UCR264219  Boerhavia triquetra var. intermedia A. C. Sanders, Jim Malusa 2015-9-10 41866 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
  UCR264214  Boerhavia wrightii A. C. Sanders 2015-9-12 41885 Riverside Sonoran (Colorado) Desert, Desert Center, south of I-10 at the Eagle Mountain Road junction 361 Comment
  UCR85636  Bolboschoenus glaucus A. C. Sanders 1993-4-5 13700 Riverside San Jacinto Valley, west edge of Hemet, along south side of Devonshire Ave. between Old Warren and Warren Roads, SW of Tres Cerritos and north of Florida Ave./ Hwy 74 460 Comment
  UCR242115  Boschniakia strobilacea Tom Chester, James Dillane 2006-7-26 942 .5 Riverside Peninsular Ranges; San Jacinto Mountain, Devils Slide Trail, 0.28 miles (0.45 km) below Saddle Junction 2463.4 Comment
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May 11 2020
  CLARK-A1528-4503  Bouteloua aristidoides John C. Roos 1963-10-23 Riverside Chuckwalla Valley Comment
  UC406747  Bouteloua aristidoides var. aristidoides Marcus E. Jones, A. M. 1929-9-16 24421 Riverside near Desert Center; Hayfields Comment
  RSA725437  Bouteloua barbata Michael Wall 2007-11-2 441 Riverside San Jacinto Valley; Bautista Rd.; roadside along grapefruit orchards, ca. 2.2 miles SE of jct. with Fairview Ave. 615 Comment
  JEPS20764  Bouteloua barbata var. barbata Roxana S. Ferris and Rimo Bacigalupi 13240 Riverside Hwy US 95 11.3 mi n Blythe (wash arising in mts); Big Maria Mts. Comment
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Jun 2 2012
  CAS-BOT-BC95419  Bowlesia incana F. W. Peirson 1922-4-30 2954 Riverside about 1.5 mi.es from Temecula River on Hemet Road, Lancaster Valley 518 Comment
  UCR21925  Bowlesia incana Steve Boyd 1980-4-8 118 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  SEINET14394121  Brachypodium distachyon O. F. Clarke 2008-5-20 Riverside Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  JOTR35010  Brandegea bigelovii La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3112 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road, near Mission Well Comment
  UCR104965  Brandegea bigelovii George K. Helmkamp, E. A. Helmkamp 1998-2-18 2730 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR244310  Brandegea bigelovii Jim Andre 2012-4-15 20850 Riverside Sonoran (Colorado) Desert, west end of Hayfield Dry Lake, 0.3 mi. N. of I-10, 0.4 mi. NE of Jct Hayfield Rd and I-10 395 Comment
  UCR274803  Brandegea bigelovii Aaron C. Sedgwick, David Fraker 2012-3-28 035 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road. c. 6 miles south of Hwy I-10 323 Comment
  UCR281089  Brandegea bigelovii Michael D. Wilcox 2017-4-18 s.n. Riverside Sonoran (Colorado) Desert, 1 mile long segment of Palm Canyon Wash, centered on Hwy 111 crossing, city of Palm Springs 165 Comment
  UCR91373  Brassica kaber Scott D. White, M. Jacobsmeyer 1996-4-20 3963 Riverside Perris Basin, Perris area: just south of Perris Airport, SE of Goetz Road/ Mapes Road intersection, north of San Jacinto River Channel 430 Comment
  RSA0066347  Brassica nigra John Green 2006-5-10 s.n. Riverside Peninsular Ranges: City of Murrieta; S of the Hogbacks. N of Hunter Road to Ramage Lane, between Calle de Amor on the E and Springview/Kiwebre Road on the W. 366 Comment
  UCR85644  Brassica nigra A. C. Sanders 1993-4-5 13692 Riverside San Jacinto Valley, west edge of Hemet, along south side of Devonshire Ave. between Old Warren and Warren Roads, SW of Tres Cerritos and north of Florida Ave./ Hwy 74 460 Comment
  JOTR31848  Brassica tournefortii La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2106 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Fargo Canyon; where 4x4 road meets southwest park boundary; steep-walled canyon 533 Comment
  UCR102744  Brassica tournefortii B. G. Pitzer 1998-2-1 3443 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UC484168  Brickellia atractyloides B. D. Stark 1930-5-4 Riverside Morongo Pass Comment
  LA102269  Brickellia atractyloides var. arguta John C. Roos; 1948-5-1 3813 Riverside Whitewater 1828 Comment
  SD132266  Brickellia californica Scott White 1990-10-2 Riverside Vail Lake Area: Highway 79, immediately west of Dripping Springs Guard Station 490 Comment
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Dec 21 2010
  SEINET272197  Brickellia californica A. C. Sanders, T. Tennant; A. Montalvo & B. Wagner 1997-11-20 21610 Riverside Lake Skinner reserve area: Diamond Valley canyon along Rawson rd. going into hills toward Crown Valley. 509 Comment
  UCR164568  Brickellia californica S. J. Myers 2001-7-16 s.n. Riverside Peninsular Range; San Jacinto Mtns, Bautista Canyon 951 Comment
  RSA545234  Brickellia desertorum R. F. Thorne 1970-10 41884 Riverside San Bernardino Mountains- Whitewater canyon: ca. 1350 ft. near bridge and Whitewater Post Office to ca. 2000 ft. up the canyon toward fish hatchery. 610 Comment
  UCR106906  Brickellia desertorum D. L. Banks, L. Raz 1996-11-5 1175 Riverside Agua Tibia Mountains, Pechanga Indian Reservation, east of San Gabriel Church; along main road in the Reservation; c. 20 m east of its intersection with Pechanga Creek 393 Comment
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Mar 2 2013
  UCR89530  Brickellia incana Bern Schwenn 1994-4-30 s.n. Riverside southern Mojave Desert, Joshua Tree National Park, E side of Hexie Mtns, Porcupine Wash, below the point where the wash joins Ruby Lee Canyon. 735 Comment
  UCR111612  Brodiaea filifolia D. E. Bramlet 2000-5-3 3004 Riverside Perris Basin, 4.3km east of Perris, 183-305m south of San Jacinto Ave. and 884m west of Pico Ave. 433 Comment
  SD226182  Brodiaea santarosae Tom Chester, Wayne Armstrong, Kay Madore 2006-6-15 925 Riverside Santa Rosa Plateau Ecological Reserve: Waterline Road, 0.4 km east-southeast of the northernmost high point of the Mesa de Burro 563 Comment
  RSA752784  Brodiaea terrestris subsp. kernensis Scott D. White, Justin M. Wood 2009-5-21 12848 Riverside McMullen Flat area, 0.35 N on Valley Hi Dr, from intersection w/ Twin Pines Rd. 1195 Comment
  UC37575  Bromus carinatus var. carinatus H. M. Hall May 1899 1112 Riverside San Jacinto Mountain; Southern California, San Jacinto Mountain 1371 Comment
  CHSC36063  Bromus madritensis subsp. rubens Paul Bailey 1972-5-14 120 Riverside 5 miles NE of Temecula on roadside of Rancho California Drive, Tucalota Hills. 457 Comment
  CSUSB431  Bromus mollis Kheng Try Seng 1966-4-24 660424 1 Riverside University of California, Riverside (UCR) campus 274 Comment
  RSA771122  Bromus rubens Orlando Mistretta, Duncan Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5003 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
  UCR102764  Bromus rubens B. G. Pitzer, O. F. Clarke, S. Reed, G. Ruiz 1998-3-7 3593 .2 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
  SEINET10810207  Bromus rubens Gordon H. True 1935-3-11 True 68 Riverside Sycamore Canyon, Box Springs. North hillside. 366 Comment
  RSA550273  Caesalpinia virgata Walter Wisura, John Dolan, Michael Wall 1992-3-24 4623 Riverside Lowdesert: 6.2 miles NE of Mecca on Box Canyon Road. Comment
  SEINET4009128  Caesalpinia virgata G. T. Manthey 1977-1 1610 Riverside About 10 miles wast of Mecca, on road going to Joshua Tree National Forest. Comment
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Jul 19 2015
  UC310280  Calandrinia ambigua Philip A. Munz 1926-1-31 9982 Riverside clay hills w Dos Palmos; Colorado Desert Comment
  UCR104625  Callitriche marginata D. E. Bramlet 1992-4-3 2206 Riverside 7.3 km SW of Hemet, 30 m east of California Ave and 108 m north of the AT & SF railroad tracks, NE of the intersection of California Ave. and Marvin Hull Road and 305 m west of the MWD Canal Comment
  LA31714  Calocedrus decurrens Carl Epling; 1931-10-3 sn Riverside San Jacinto Mountains, Strawberry Valley 1523 Comment
  UC489219  Calochortus invenustus C. V. Meyer 1928-7-26 546 Riverside w slope San Jacinto Peak 2895 Comment
  RSA0066239  Calochortus invenustus Anstruther Davidson 1876-07 s.n. Riverside Strawberry Valley. 1219 Comment
  RSA593785  Calochortus palmeri var. munzii Jeri Hirshberg 1995-5-19 280 Riverside San Jacinto Mountains, Garner Valley, north of Morris Creek. Comment
  UCR1236  Calochortus splendens Rodney Hendrick 1965-5-2 s.n. Riverside Peninsular Range, Temecula Creek and Hwy. 71 610 Comment
  RSA1314  Calochortus weedii J. T. Howell 1928-7-8 1045 Riverside Santa Ana Mountains above Glen Ivy 1067 Comment
  POM256722  Calochortus weedii var. intermedius W. Pequegnat 1940-6-18 s.n. Riverside Sierra Peak, Santa Ana Mountains. Comment
  CAS-BOT-BC283322  Calycoseris parryi Helen K. Sharsmith 1952-4-10 4060 Riverside Mojave Desert. Smoke Tree Wash, ca 5 miles NE of Cottonwood Springs, Joshua Tree National Monument 853 Comment
  SEINET3208890  Calyptridium monandrum G. Goodwin 2012-6-14 3445 Riverside San Jacinto Mountains, south of Banning along highway 243 just north of Vista Grande viewpoint 1550 Comment
  SDSU17442  Calyptridium parryi var. parryi C. Matt Guilliams, Michael and Lori Simpson, Mike Silveira 2007-6-25 374 Riverside San Jacinto Wilderness State Park, summit of San Jacinto Peak. Ca. 10 meters west of sign marking high point, in sandy opening among boulders. 3292 Comment
  CSUSB675  Calystegia macrostegia subsp. longiloba Kenneth Hibberd 1966-3-27 660327 3 Riverside La Sierra Road, 2.5 miles south of Victoria Street heading toward Lake Mathews. 365 Comment
  RSA584032  Calystegia occidentalis subsp. fulcrata T. S. Ross, Karl E. Holte, A. R. Ross 1993-5-30 7345 Riverside San Mateo Canyon Wilderness Area, Cleveland National Forest; Tenaja Canyon (sometimes considered a part of the Santa Margarita Mts.). 488 Comment
  CAS-BOT-BC218905  Camissonia B. Trowbridge 1979-4-13 6070 Riverside Ca. 5 miles east of Temecula off Hwy. 71 457 Comment
  UC1184269  Camissonia Peter H. Raven 1958-2-15 11568 Riverside Corn Springs Chuckawalla Mountains Comment
  RSA781903  Camissonia boothii subsp. condensata Duncan S. Bell 2010-5-1 887 Riverside Arica Mountains: northwest section of project area, approximately 10.5 air miles southwest of the ghost town of Rice, and approximately 2.6 air miles south of the junction of Highway 62 and the aqueduct access road. 291 Comment
  HSC28012  Camissonia brevipes Richard Spjut 1973-4-5 3263 Riverside Colorado Desert; N slopes of the Chuckawalla Mtns. ca. 3-4 mi. S of Desert Center 305 Comment
  RSA678219  Camissonia californica Valerie L. Soza, J. Mark Porter, Gary D. Wallace 2001-4-2 1086 Riverside Big Morongo Wash. 473 Comment
  UCR133966  Camissonia cardiophylla Mitch Provance, J. S. Ross 1998-3-27 MOR- 954 Riverside San Bernardino Mtns., Morongo Indian Reservation, Lion Canyon, c. 1.2 miles NE of the town of Cabazon 579 Comment
  RSA703374  Camissonia chamaenerioides LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda Lee Worlow 2005-2-17 1438 Riverside Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  IRVC27410  Camissonia claviformis T. B. Salvato, A. C. Sanders, Mitch Provance 2000-4-18 53 Riverside 2 mi NE of Mecca near mouth of Painted Canyon at foot of Mecca Hills, W edge of Coachella Canal Coachella Valley 9 Comment
  RSA135301  Camissonia claviformis subsp. aurantiaca Peter H. Raven 1958-3-1 11750 Riverside Open alluvial fan along U.S. Highway 95, 16.1 miles north of Blythe. Comment
  RSA449190  Camissonia claviformis subsp. aurantiaca Howard Mullins 1931-4-11 s.n. Riverside Palm Springs (3 miles no.) Comment
  UCR196390  Camissonia claviformis subsp. aurantiaca Naomi Fraga, Sarah J. De Groot, Lisa Rojas, Pesach Lubinsky 2005-2-10 1424 Riverside Northeastern Colorado Desert, along Palen Pass Road, near Hwy 177 170 Comment
  UCR116886  Camissonia graciliflora A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-9 24217 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
  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
  RSA613897  Camissonia ignota A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19853 Riverside [Skinner Reservoir] 457 Comment
  UCR121687  Camissonia ignota D. E. Bramlet 1991-5-9 2137 Riverside N Domenigoni Hills, c. 0.5 mi SE of the end of Warren Rd., on large, prominent peak adjacent to old quarry, east of access road 659 Comment
  RSA449034  Camissonia lewisii Christopher Davidson 1973-4-1 1819 Riverside Jct. Vail Lake Marina and Hwy. 71/79, about 3 miles west of Aguanga. 426 Comment
  UCR192717  Camissonia micrantha A. C. Sanders, Mike Misenhelter 2008-6-10 35449 Riverside San Bernardino Valley, Glen Avon, San Sevaine Wash south of Hwy 60 and of San Sevaine Way, east of concrete channel 231 Comment
  POM253860  Camissonia pallida subsp. pallida A. M. Alexander, Louise Kellogg 1941-4-22 2059 Riverside Morongo Valley Gorge. 701 Comment
  RSA774305  Camissonia refracta Duncan S. Bell 2011-4-8 2196 Riverside Northwest section of the Granite Mountains; approximately 1 air mile southeast of junction of Highway 62 and Highway 177. 470 Comment
  UCR50893  Camissonia refracta A. C. Sanders 1988-5-11 7798 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal, east of the gasline road from Niland 549 Comment
  UCR116791  Camissonia strigulosa A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-7 24155 Riverside Perris-Aguanga Basin region, S of Hemet, E end of Diamond Valley, along Gibbel Rd. 0.5-0.75 mi. east of State St., between Silver Dew Dr. and Morse Girard St., slopes and wash below the mouth of Avery Canyon 549 Comment
  RSA0112637  Camissoniopsis confusa A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23904 Riverside Perris-Aguanga Basin region: Tucalota Creek along gasline right-of-way, SE of French Valley Airport, off Borel Rd. in NE Murrieta. 396 Comment
  SDSU3373  Camissoniopsis ignota H. L. Wedberg 1958-3-30 189 Riverside Adjacent to stream bed between the northwest end of Upper San Juan Campground and Hwy 74. Comment
  RSA263763  Cardamine californica var. integrifolia E. W. Lathrop 7482 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. 1220 Comment
  RSA5009  Cardamine californica var. integrifolia C. B. Wolf 1932-3-20 9 Riverside Richman Ranch, 2.5 miles north of De Luz. 457 Comment
  RSA719520  Carex multicostata Naomi Fraga, et al. 2006-7-11 1715 Riverside Mount San Jacinto State Park, Hidden Lake. 2652 Comment
  SEINET12950760  Carex praegracilis D. E. Bramlet, P. Jacks, S. Goode 1989-4-5 1796 Riverside Perris-Aguanga Basin Region: Shipley Multi-species Reserve. Blue-line stream on the eastern flank of Bachelor Mtn., 700 ft north of the existing access road & 3,600 ft. W of Rawson Canyon.(Bachelor Mountain 7.5') 469 Comment
  UCR158885  Carex praegracilis Scott D. White 1994-6-14 2059 Riverside Peninsular Ranges; Perris-Aguanga Basin region, Santa Gertrudis Creek, c. 1 mi. east of Skunk Hollow 396 Comment
  CHSC106609  Carex senta P. F. Zika; Nick Otting 2010-8-3 25243 Riverside Vicinity of Willow Creek, San Jacinto Wilderness Area, San Jacinto Mountains, Peninsula Ranges. 2550 Comment
  RSA364711  Carex subfusca M. B. Dunkle 1933-7-23 3759 Riverside San Jacinto Peak, San Jacinto Mountains. 3049 Comment
  SD137989  Carex triquetra Darin L. Banks, Steve Boyd 1995-5-9 374 Riverside Cleveland National Forest, Aqua Tibia Wilderness Area, north face of Aqua Tibia Mountains (Watershed), Dorland Muntain area, west of Dripping Springs Alcove Area, west of Woodchuck Campground. 680 Comment
  UCSB37818  Carthamus tinctorius Oscar F. Clarke 1968-12-16 Riverside collected in University of California Riverside Greenhouse Comment
  SD217376  Castilleja affinis Steve Boyd, Tim Ross and Laurel Arnseth 1990-3-29 3910 Riverside Vail Lake Area, summit of Big Oak Mountain, north of lake. 792 Comment
  JEPS60185  Castilleja affinis subsp. affinis L. R. Heckard 1969-4-24 2166 Riverside about 2.5 mi s Sage (along Highway 79) Comment
  JEPS8583  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. F. MacBride, Ruth D. Sanderson, and C. Leroy Custer 1952-3-30 3550 Riverside 2.6 mi n Murrieta (along Calif Hwy 71, between Wildomar and Murrieta) 396 Comment
  RSA0010959  Castilleja applegatei subsp. martinii Shawn Krosnick, C. Martinez, Naomi Fraga, L. McDade 2010-8-14 639 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  RSA448696  Castilleja applegatei subsp. martinii N. C. Cooper 1945-5-24 1666 Riverside Big Oaks Canyon, Banning. 1220 Comment
  RSA730550  Castilleja applegatei subsp. martinii John F. Emmel 1983-6-6 860 Riverside SE end San Jacinto Mts.; switchbacks of trail from Tripp Meadow to Cedar Spring, 0.7 air mile NNW of Pyramid Peak. 1860 Comment
  RSA679195  Castilleja applegatei subsp. martinii Michael Denslow, Firoozeh Navid-Ara, Valerie Soza 2003-7-15 1445 Riverside Northeast side of Tahquitz Peak, on trail to Saddle Junction 2637 Comment
  OBI35636  Castilleja exserta Norman C. Cooper 1944-4-21 1127 Riverside Banning 701 Comment
  UC665831  Castilleja exserta Ira L. Wiggins 1941-3-27 9703 Riverside 4 mi n Whitewater Comment
  UCR237210  Castilleja exserta Duncan S. Bell, Valentin Arvizu 2010-5-10 982 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 1.4 air mi southeast of junction of FS Road 6S13 and FS Road 6S04 1365 Comment
  RSA757635  Castilleja exserta subsp. exserta LeRoy Gross, Jackie McConnaughy, Drew Monks, Tommy Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4319 Riverside From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W., Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  UC68759  Castilleja exserta subsp. exserta H. M. Hall Apr 1905 5761 Riverside Palm Springs; Colorado Desert 152 Comment
  SD225112  Castilleja foliolosa G. K. Helmkamp 1998-4-3 3089 Riverside Coachella Valley: Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging station along the creek 747 Comment
  RSA0010909  Castilleja minor subsp. spiralis Barbara Ertter, J. Strachan 1979-6-26 2974 Riverside Large wash behind Kenworthy Ranger Station, near Route 74 in Hemet Valley, San Jacinto Mountains, San Bernardino National Forest. 762 Comment
  RSA502506  Castilleja minor subsp. spiralis Steve Boyd, Tim S. Ross, L. Arnseth 1989-5-7 3565 Riverside Vail Lake area, along Arroyo Seco drainage from jtn. with Kolb Creek, S to w/in 1/4 mi Hwy 79. 457 Comment
  UCD170854  Casuarina cunninghamiana A. C. Sanders; T. B. Salvato 2000-4-21 23349 Riverside Coachella Valley: 3-4 miles north of I-10 on Dillon Road. 61 Comment
  UC597600  Caulanthus hallii Philip A. Munz 1937-5-30 15093 Riverside nw slope Santa Rosa Mts.; nw slope Santa Rosa Mts. 1828 Comment
  UC1608300  Caulanthus heterophyllus Steve Boyd, Tim Ross, and Orlando Mistretta 1992-2-26 6700 Riverside San Mateo Canyon from Fisherman's Camp downstream to confluence with Bluewater Canyon; Santa Ana Mountains, San Mateo Cyn Wilderness Area 304 Comment
  UCD114553  Caulanthus heterophyllus A. C. Sanders; Steven R. Hill 2001-5-4 24134 Riverside Santa Ana Mountains region: W of Temecula, Santa Rosa Plateau area, top of escarpment on Rancho California Road at Avenida del Oro (to Sandia Crk. Dr.), E side of Rancho C. Road. 148 Comment
  UCR121204  Caulanthus heterophyllus D. E. Bramlet 1991-5-10 2141 Riverside Perris-Aguanga Basin region, North Domenigoni Hills, 4300-4500 ft. SE from end of Warren Rd., W side of large peak in Sec. 31, just above saddle 610 Comment
  UCR174142  Caulanthus heterophyllus A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32570 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 518 Comment
  UCR199926  Caulanthus heterophyllus Scott D. White, Justin Wood 2008-4-16 11889 Riverside Perris/Elsinore Basin, hills to the west of I-215 and south of Scott Rd. 549 Comment
  UCR20735  Caulanthus heterophyllus A. C. Sanders, Steve Boyd 1980-5-2 1396 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  OBI42531  Caulanthus simulans L. F. LaPre 1986-4-17 s.n. Riverside Bull Canyon, Gavilan Hills Comment
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Nov 21 2014
  POM19808  Ceanothus cordulatus Mary F. Spencer 1923-6-27 2188 Riverside Idyllwild, San Jacinto Mt. 1646 Comment
  CHSC1500  Ceanothus crassifolius V. Holt 1942-3-30 Riverside Santa Rosa mountains. Comment
  RSA489179  Ceanothus crassifolius Bill Wagner 1988-4-12 s.n. Riverside Approx. 1/2 mile SW of town of Temecula, S of Rancho CaliforniaRoad and Buisness Park Drive. 335 Comment
  RSA583364  Ceanothus crassifolius Steve Boyd, Darin Banks 1995-4-5 8417 Riverside Palomar Range, Agua Tibia Wilderness Area, northern flank of Agua Tibia Mountain at the eastern edge of the Dripping Springs Alcove in tributary of Arroyo Seco, west of the lower Dripping Springs Trail, just south of the Wilderness boundary. 579 Comment
  UCR50578  Ceanothus crassifolius B. G. Pitzer, E. Misquez 1988-2-28 619 Riverside Santa Ana Mtns, Walker Basin, southwest of Murrieta, Avenida Del Oro, 2 mi south of Rancho California Road 428 Comment
  UCR92707  Ceanothus crassifolius A. C. Sanders, O. F. Clarke 1996-4-13 18030 Riverside Riverside: Box Springs Mtns, crest of range in vicinity of park headquarters, head of Two Trees Canyon 700 Comment
  SBBG105030  Ceanothus crassifolius var. crassifolius S. Boyd with T. Ross 1993-3-23 Riverside Palomar Range S of Vail Lake, N base of Agua Tibia Mtn, along trail extending S from end of Woodchuck Rd Comment
  UC1073272  Ceanothus greggii var. perplexans George B. Rossbach 1955-4-28 344 Riverside just S of N boundary of San Bernardino National Forest, San Jacinto Mountains, Route 78, SE of Banning Comment
  POM250392  Ceanothus leucodermis I. W. Clokey, E. G. Anderson 1935-8-21 6737 Riverside Fuller's Creek, San Jacinto Mountains 1500 Comment
  RSA34562  Ceanothus leucodermis N. Cooper 1944-6-17 1380 Riverside Above Banning. 1372 Comment
  UCD166567  Ceanothus leucodermis Dylan O. Burge 2016-6-13 2118 Riverside Santa Ana Mountains, roadside on California State Route 74, just W of Lake Elsinore. 608 Comment
  UCR161149  Ceanothus leucodermis John F. Green 2005-2-24 s.n. Riverside Santa Ana Mtns Region, Santa Rosa Plateau, just SE of Redonda Mesa and SW of Mesa de Colorado, 9.6 acre parcel south of the junction of El Cerezo Road and Corona Cala Camino 793 Comment
  LA44927  Ceanothus oliganthus var. sorediatus W. Pequegnat; 1938-4-16 sn Riverside SANTA ANA MOUNTAINS, Indian Truck Trail. Comment
  RSA569984  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7918 Riverside Palomar Range south of Vail Lake at the north base of Agua Tibia Mountain, Agua Tibia Wilderness Area, Cleveland National Forest. Along trail extending south from end of Woodchuck Road. 792 Comment
  POM301639  Ceanothus palmeri Carl B. Wolf 1941-8-12 11142 Riverside 3.5 mi. N.W. of Idylwild on dark canyon Rd. 1646 Comment
  UCR120908  Ceanothus perplexans A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-9 24949 Riverside The Badlands, hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 671 Comment
  RSA552753  Ceanothus tomentosus var. olivaceus Steve Boyd, C. Boyd, K. A. Boyd 1992-3-21 6739 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area, Tenaja Canyon. along trail from wilderness boundary downstream towards Fisherman's Camp. 366 Comment
  RSA755430  Celtis australis O. F. Clarke 2003-10-6 s.n. Riverside Riverside, UCR campus 366 Comment
  UCR95727  Cenchrus incertus D. L. Banks, Lauren Raz 1996-8-29 1133 Riverside Agua Tibia Mtns., NW Palomar Mtns, NW foothills of Dorland Mtn. Los Caballos Road, c. 0.5 m south of Hwy 79, 100 m north of the Golf Course access road. 399 Comment
  UCR130875  Cenchrus spinifex A. C. Sanders, K. C. Rose 1999-5-28 22789 Riverside Coachella Valley, between La Quinta and Indio, along Jefferson St. between Ave 54 and I-10 18 Comment
  RSA160470  Centaurea solstitialis J. D. Olmsted 1959-9-23 1013 Riverside Garner Ranch drainage at crossing of Hwy 74 by Hemet Lake. San Jacinto Mts. 1357 Comment
  SD152949  Centaurea solstitialis Steve Boyd, Tim Ross and Dave Bramlet 1992-9-9 7690 Riverside Southern Santa Ana Mountains; upper San Mateo Canyon, from the junction of Tenaja Road and Los Alamos Road at the confluence of Los Alamos Creek. 395 Comment
  UCR38703  Centaurium exaltatum J. M. Stewart 1985-5-20 8520 Riverside Sonoran (Colorado) Desert, Palm Canyon 244 Comment
  UC729471  Centaurium venustum Carl B. Wolf 1932-8-6 Riverside 2.9 mi from Idyllwild (on road to Hemet); San Jacinto Mts. 1219 Comment
  UCR120410  Centaurium venustum Mitch Provance 1998-5-25 875 Riverside Santa Ana River Wash, Riverside, 1/8 mile NW of Tequesquite Ave. and Gregory Rd. 229 Comment
  UCR281577  Centaurium venustum Mitch Provance, John Hazlett, Matt K. Beyers, Jeremiah George 2017-5-31 517- 119 Riverside Gavilan Hills, Alberhill Canyon, dirt road portion of Lake St., about 0.8 miles N of Hwy. 15 at Alberhill. 457 Comment
  LA203694  Centromadia pungens Elizabeth McClintock; 1938-5-30 sn Riverside San Jacinto Comment
  JEPS8778  Centromadia pungens subsp. laevis Rimo Bacigalupi with G. T. Robbins 1954-5-16 4466 Riverside one-half mi w of Lakeview and just e of Lakeview (formerly Ginsberg) Hot Springs; Valley of San Jacinto 432 Comment
  SD6128  Centrostegia thurberi 1917-5-1 Riverside Mojave Desert near Hesperia Comment
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Nov 20 2011
  UC667256  Centrostegia thurberi var. thurberi Annie M. Alexander and Louise Kellogg 1941-4-27 2100 Riverside Joshua Tree National Monument Joshua Tree National Monument Joshua Tree National Monument; Joshua Tree National Monument 1310 Comment
  CAS-BOT-BC388360  Cerastium glomeratum A. C. Sanders; G. Helmkamp 1996-3-17 17983 Riverside Coachella Valley: Palm Springs, mouth of Palm Cyn., ca. 0.5 km E of Palm Canyon Dr. on Bogert Trail 163 Comment
  UCR31300  Cerastium glomeratum A. C. Sanders, Theo Glenn 1983-4-17 3738 Riverside Santa Ana Mtns., Mesa de Colorado, 5 mi (airline) SW of Murrieta 612 Comment
  SEINET7048211  Cerastium glomeratum Steven R. Hill, Andrew C. Sanders 2001-5-4 33723 Riverside Santa Rosa Plateau, eastern rim, north side of Avenida del Oro, just east of junction with Sandia Creek Drive, 2 miles west of junction of Rancho California Road and Route I-15. Elevation 1570 - 1670 feet. 509 Comment
  JOTR01064  Cercidium floridum subsp. floridum Cole, James E. 1941-6-11 864 Riverside Joshua Tree National Park. COTTONWOOD SPRING AREAR; 1/4 MILE BELOW SPRING 914 Comment
  RSA210970  Cercocarpus betuloides C. W. Tilforth 1969-7-25 220 Riverside North end of Coyote Canyon, SE of Anza. Comment
  UCR35158  Cercocarpus betuloides L. B. Ziegler 1972-4-8 446 Riverside San Jacinto Mtns, S side of Thomas Mtn 1829 Comment
  SDSU13900  Cercocarpus minutiflorus Michael G. Simpson, Claudia Luke & Shane Waddell 2000-5-23 2151 Riverside Santa Margarita Ecological Reserve (SDSU), southeastern region, northern end of northern most (narrow) deer grass meadow. 646 Comment
  SD245306  Cereus A. C. Sanders 2010-5-31 38433 Riverside Riverside, yard at 5081 Magnolia Ave., at corner of Chapman Place. Large Victorian residence. 257 Comment
  SDSU14019  Chaenactis artemisiifolia Dinna Estrella, M. G. Simpson 2002-4-20 23 Riverside Santa Margarita Ecological Reserve. Road shoulder of Via Tornado Road, near junction with Santa Margarita river. 233 Comment
  UC1718083  Chaenactis artemisiifolia John S. Mooring 1962-5-15 620515 -5 Riverside along Bautista Canyon Road ca. 8 miles SE of Valle Vista. Comment
  SEINET3005068  Chaenactis carphoclinia G. Rink 2011-5-1 10506 Riverside North side of the Chuckawalla Mountains near Chuckawalla Spring 505 Comment
  UCR29853  Chaenactis carphoclinia var. carphoclinia George K. Helmkamp 1983-3-24 383- 19 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  CAS-BOT-BC276933  Chaenactis fremontii J. H. Thomas 1949-2-28 62 Riverside Southern part of Palm Springs Comment
  CAS-BOT-BC276936  Chaenactis fremontii Philip A. Munz 1940-3-23 15721 Riverside 3 miles N of Cottonwood Springs, Eagle Mountains 914 Comment
  POM66644  Chaenactis fremontii Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring. 61 Comment
  RSA0069676  Chaenactis fremontii Cheryl Sevilla, Sarah J. De Groot 2015-3-16 19 Riverside Transverse Ranges; San Bernardino Mountains region: San Gorgornio Wilderness Area; on the plain to the east of Mission Creek; 0.4 miles northwest of the Stone House. 784 Comment
  RSA717622  Chaenactis fremontii Scott D. White, Andrea Warniment 2006-3-29 11275 Riverside Eastern Coachella Valley a few mi E of Indio. Proposed I-10 Freeway / McMaughton Parkway Interchage, N of I-10 Freeway. 91 Comment
  UCR208481  Chaenactis fremontii Justin M. Wood 2009-3-26 411 Riverside Coachella Valley, Bermuda Dunes, Ave 38, between Washington St and Hwy I-10 43 Comment
  SEINET13276741 Image available Chaenactis glabriuscula T. B. Salvato 2005-1 1437 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 (Lake Elsinore 7.5' Q.) (T5S R5W S11, SE/4) 695 Comment
  RSA339650  Chaenactis glabriuscula var. glabriuscula R. F. Thorne 1980-5-28 54235 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  RSA594507  Chaenactis glabriuscula var. glabriuscula Darin L. Banks, Dylan Hannon 1996-5-3 0993 A Riverside Agua Tibia Mountains; Cleveland National Forest; Dripping Springs Campground, 30 m N of campsite #9. 487 Comment
  RSA763054  Chaenactis glabriuscula var. glabriuscula E. W. Lathrop 1968-5-22 6943 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest 1220 Comment
  RSA771657  Chaenactis glabriuscula var. glabriuscula Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4911 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
  SEINET7063048  Chaenactis glabriuscula var. glabriuscula A. G. Vestal 1963-5-20 s.n. Riverside Long Valley Road at Temecula and at the junction with Route 395 (115). UTM Zone 11, 485910mE, 3706825mN. (WGS84/NAD83). 308 Comment
  UC917865  Chaenactis glabriuscula var. glabriuscula Frank W. Gould 1943-4-17 2107 Riverside 12 mi s of Corona Comment
  JEPS44368  Chaenactis parishii Lauramay T. Dempster and G. L. Stebbins 1966-6-19 4280 Riverside about 2 1/2 mi above lower end of road to Santa Rosa Peak Comment
  JOTR37461  Chaenactis stevioides Hodges, Stephen, T. Green 2016-5-5 583 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Upper Covington Flats, southwest from parking area for Covington Crest trail, along the ridge crest (Stop 1) Comment
  UC69075  Chaenactis stevioides H. M. Hall 1905-5-1 6018 Riverside Cottonwood Springs Colorado Desert, Cottonwood Springs 670 Comment
  UC868839  Chamaesyce albomarginata C. L. Hitchcock 1940-4-2 5925 Riverside Joshua TreeNational Monument, Cottonwood Springs Comment
  SEINET3004969  Chamaesyce polycarpa G. Rink 2011-3-24 10393 Riverside Sandy wash north of Blythe, east of the McCoy Mtns 109 Comment
  SEINET3365550  Chamaesyce polycarpa G. Rink 2011-9-25 11074 Riverside South of I-10 at the Ford Dry Lake Exit, in a swale that sometimes holds water 110 Comment
  RSA778321  Chamaesyce polycarpa Amber Swanson, Linda Jean Foster 2011-10-8 626 Riverside Jct of Blythe Rice Rd and Hwy 62. 287 Comment
  RSA432469A  Chamaesyce polycarpa var. hirtella Christopher Davidson 1979-4-4 7680 Riverside Orocopia Mts, lower end of Box Canyon on Box Canyon road, 4.4 miles E of Mecca 213 Comment
  RSA740641  Chamaesyce polycarpa var. polycarpa Scott D. White, Justin M. Wood 2008-7-10 12443 Riverside San Jacinto Mountains: Garner Valley, near Fobes Ranch Rd. 1354 Comment
  RSA640168  Chamaesyce prostrata L. C. Wheeler 1964-10-10 8634 Riverside 3030 Oak Ave. Corona. Comment
  RSA134876  Chamaesyce setiloba L. S. Rose 1959-1-12 59011 Riverside Cathedral City 122 Comment
  RSA685716  Cheilanthes covillei I. M. Johnston 1917-4-4 s.n. Riverside Palm Canyon 762 Comment
  SEINET903948  Cheilanthes covillei Scott D. White 1996-1 4460 Riverside Idyllwild Area: Alvin Meadows and unnamed canyon upstream. San Jacinto Mountains. USGS Blackburn Cyn 7.5 topo (immed. Adjacent to Idyllwild topo) 1525 Comment
  UCR135714  Cheilanthes covillei Mitch Provance, Kerry Knudsen, Petra Wester 2004-5-8 9014 Riverside Santa Rosa Mtns., c. 0.05 miles S on Santa Rosa Mt. Road from Hwy 74 1402 Comment
  UCR41226  Cheilanthes covillei N. M. Fellows, A. C. Sanders 1985-4-9 157 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
  UCR12622  Cheilanthes newberryi R. P. Sunderman 1968-4-26 4 Riverside Peninsular Range, Riverside; UCR campus 396 Comment
  UCR20821  Cheilanthes newberryi A. C. Sanders, Steve Boyd 1980-5-2 00959 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  RSA0123692  Cheilanthes parryi Duncan S. Bell, LeRoy Gross 2016-3-30 9160 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
  UCR120310  Chenopodium Mitch Provance 1997-6-18 1102 Riverside City of Riverside, Riverside Community College, between the NE (back) parking lot and Prospect Dr. 244 Comment
  RSA466280B  Chenopodium ambrosioides S. J. Myers 1987-10-27 s.n. Riverside Ca. 3 mi. W of Temecula, NE portion of plateau, 3/4 mi. E of Walker Basin. Comment
  RSA654967  Chenopodium berlandieri A. C. Sanders, D. Malueg, K. D. Jones, et al. 2000-9-8 s.n. Riverside Perris-Aguanga Basin Region: gasline right of way across Pinto and Hoopes Ranches, east of Briggs Road at and near Warm Springs Creek, S of Scott Rd. 415 Comment
  SD146315  Chenopodium berlandieri T. B. Salvato, A. C. Sanders 2000-4-27 59 Riverside Coachella Valley between Filmore and Buchanan on Avenue 56. -36 Comment
  UCR103222  Chenopodium berlandieri Scott D. White 1994-10-17 2463 .2 Riverside Temecula Valley, Murrieta Creek channel, downstream from confluence with Santa Gertrudis Creek, south of bridge at Winchester, north of Long Valley Road. 305 Comment
  UCR92339  Chenopodium botrys Scott D. White 1995-7-7 3444 Riverside City of Riverside, Market Street crossing at Santa Ana River 344 Comment
  RSA478501  Chenopodium californicum Dorothy Cowper 1973-1 7306 Riverside Near Palms to Pines highway, southeast portion of Garner Ranch, Garner Valley. 1373 Comment
  UC1931134  Chenopodium californicum Scott D. White, Justin Wood 2008-6-17 12170 Riverside San Jacinto Mountains: Garner Valley-Kenworthy Station (USFS). (Butterfly Peak) Comment
  SFV7069  Chenopodium murale T. Gordon, K. A. Wilson, M. H. Grayum, K. Felt 1974-11-16 769 Riverside Blythe. Alfalfa field along Colorado River north of Collis Mayflower County Park. 85 Comment
  UCR116602  Chenopodium murale A. C. Sanders 2001-4-8 23984 Riverside Western Colorado Desert, Coachella Valley, Desert Hot Springs, north of intersection of Pierson Blvd. and Atlantic Ave., north of flood control ditch 348 Comment
  CSUSB734  Chilopsis linearis Margaret-Lee Dean 1965-4-15 S. N. Riverside Box Canyon, 8 miles east of Mecca on Highway 195. Desert wash. 60 Comment
  UCR274213  Chilopsis linearis Duncan S. Bell, Evan Meyer 2014-10-29 7690 Riverside Santa Rosa Mountains, Agua Alta Canyon, to the north of Martinez Canyon, c. 6 air miles southeast of the summit of Martinez Mountain 394 Comment
  POM13252  Chilopsis linearis subsp. arcuata E. C. Jaeger 1921-6-15 1055 Riverside Banning. Base of McMullen Trail [Banning to McMullen Flat] Comment
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Nov 5 2011
  RSA33620  Chilopsis linearis subsp. arcuata N. C. Cooper 1944-7-15 1548 Riverside Palm Springs. 122 Comment
  UC410725  Chilopsis linearis subsp. arcuata Mrs. E. C. Van Dyke 1928-5-28 Riverside Banning Comment
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Mar 13 2011
  POM48039  Chimaphila umbellata subsp. occidentalis P. A. Munz, I. M. Johnston 1924-7-27 8724 Riverside ridge south of Dark Canyon, San Jacinto Mts 2287 Comment
  UCR101185  Chloracantha spinosa L. C. Wheeler 1955-6-10 7153 Riverside Sonoran (Colorado) Desert, 2 mi. west of Blythe Comment
  UCR102887  Chloris truncata A. C. Sanders 1997-3-26 20138 Riverside Lake Skinner area, large clay patch adjacent to the Skinner entrance road, c. 1 km NE of Borel Rd. 473 Comment
  RSA0106756  Chorizanthe brevicornu Duncan S. Bell, Amanda Turek 2009-3-29 145 Riverside Collecting in the large western drainage of the Arica Mountains, within the Palen/McCoy wilderness area. 434 Comment
  JOTR35047  Chorizanthe brevicornu var. brevicornu La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3500 Riverside Joshua Tree National Park. Coxcomb Mountains: southwest corner of park, north of MWD Aqueduct Road on south-facing bajada among sonoran desert riparian washes. Comment
  RSA392606  Chorizanthe brevicornu var. brevicornu M. B. Dunkle 1935-4-17 4559 Riverside W. of Wiley Well. Colorado Desert. Comment
  UCR111963  Chorizanthe coriacea A. C. Sanders, T. B. Salvato 2000-5-25 23406 Riverside Peninsular Range, Menifee Valley, south of Newport Rd., north of Holland Rd. and west of Bradley Rd., 2 miles due east of Railroad Canyon Lake 488 Comment
  UCR16538  Chorizanthe coriacea H. C. Sharma 1976-4-25 760425- 04 Riverside San Bernardino Valley, Reche Canyon, area opposite 7382 Reche Canyon Road 457 Comment
  UCR263483  Chorizanthe coriacea A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41447 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms 439 Comment
  UCR278090  Chorizanthe coriacea Tim Searl 2011-6-4 s.n. Riverside Gavilan Hills, Kamlin Mission Church property, c. 5.7 miles west of Perris and c. 0.5 mile west of Steele Valley 686 Comment
  UC69320  Chorizanthe corrugata L. A. Greata April 1905 Riverside Coachella Comment
  UCR242864  Chorizanthe fimbriata Dick Newell, Judy Booth 2013-6-16 334 Riverside Peninsular Range; Santa Ana Mtns., South Main Divide Rd., 0.3 mi. east of Decker Canyon Rd. 887 Comment
  UCR48366  Chorizanthe fimbriata var. fimbriata Steve Boyd 1986-5-1 1817 Riverside S slopes of Bachelor Mtn, east end of Lake Skinner Comment
  UCR159816  Chorizanthe leptotheca Chris E. True, Robert Cox 2005-6-16 s.n. Riverside San Jacinto Mtns. Foothills, along Hwy 74 at milepost 48, across from Cranston US Forest Service Station, 3 miles east of Fairview Ave., north of highway and south of San Jacinto River, near mouth of Bee Canyon 610 Comment
  UCR35075  Chorizanthe leptotheca L. B. Ziegler 1966-7-5 51 Riverside San Jacinto, Dry slopes and disturbed soil near Hemet Lake 1372 Comment
  SD138829  Chorizanthe parryi var. parryi Craig Reiser 1993-3-29 Riverside North of Lewis Valley Road and east of Sage Road Comment
  UCR78331  Chorizanthe parryi var. parryi D. E. Bramlet 1993-5-5 2341 Riverside Lake Matthews, Ridgeline above Dawson Canyon, 670 m north of the canyon. 732 m east of the existing landfill weigh station 439 Comment
  RSA356652  Chorizanthe polygonoides var. longispina Robert F. Thorne, C. W. Tilforth, Larry E. DeBuhr, E. Lathrop 1975-8-29 47305 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro. 610 Comment
  RSA496372  Chorizanthe polygonoides var. longispina Steve Boyd, Tim S. Ross, Laural Arnseth 1989-3-19 3046 Riverside Vail Lake area, 0.75 mile NW of dam. 622 Comment
  UCR251300  Chorizanthe polygonoides var. longispina T. B. Salvato, Mike Landers 2013-3-21 7414 Riverside Perris-Aguanga Basin, Murrieta, at the northwest corner of the intersection of Baxter Road and Menifee Road 453 Comment
  UCR48397  Chorizanthe polygonoides var. longispina Steve Boyd 1986-5-1 1796 Riverside Perris-Aguanga Basin region, southwestern Perris Basin, hill west of Skunk Hollow, Skunk Hollow vernal pool 488 Comment
  SD137671  Chorizanthe procumbens Darin L. Banks, Steve Boyd 1995-5-9 356 Riverside NW Palomar Mountains, north of the Agua Tibia Wilderness Area, north slope of agua Tibia Mountain, the Dorland Mountain Area, west of the Dripping Springs Alcove Area, west of Woodchuck Campground 730 Comment
  SD173057  Chorizanthe xanti var. leucotheca Larry Hendrickson, Stacey Ostermann 2003-4-24 1205 Riverside Anza-Borrego Desert State Park just north of San Diego County border. Upper Coyote Canyon, at mouth of Alder Canyon on stable bench above active wash 747 Comment
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Nov 18 2009
  SEINET10445993 Image available Chorizanthe xanti var. leucotheca Marc A. Baker, Danny Cuellar, Emily Mastrelli, Cecile Shohet and Stephan Myers 2015-1 18308 Riverside south side of the San Gorgonio River, 2km north of Banning, south base of the San Bernardino Mountains, 52km east of Riverside 788 Comment
  CAS-BOT-BC36263  Chrysolepis sempervirens Louis C. Wheeler 1931-10-3 239 Riverside 1/2 mi. NE Tahquitz Peak, San Jacinto Mts. 2590 Comment
  RSA93230  Chrysothamnus paniculatus F. W. Peirson 1939-11-26 12901 Riverside 29 Palms about 7 miles from Blvd Comment
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Apr 24 2013
  UCR245232  Chylismia brevipes subsp. brevipes Jim Andre 2012-3-19 21321 Riverside Sonoran (Colorado) Desert, north end of Chuckwalla Mountains at Jaeger Nature Sanctuary, 1.5 mi. south of junction Eagle Mt Rd and I-10 freeway 411 Comment
  UCR279556  Chylismia brevipes subsp. brevipes A. C. Sanders, Jim Malusa 2017-3-29 43177 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, large canyon 4 km SSE (164 deg. ) of the confluence of Red Canyon and Salt Creek 518 Comment
  SD143808  Chylismia cardiophylla A. C. Sanders, S. White and C. L. Sanders 1994-10-9 15813 Riverside San Bernardino Mountains: Whitewater Canyon, 2.0 miles below trout farm, above Bonnie Bell. 550 Comment
  OBI38923  Chylismia claviformis A. C. Sanders, Pitzer, Charlton, Kniffen 1986-3-3 6078 Riverside Corn Spring, Chuckwalla Mts, was below the spring ans wsh and rocky slopes to the S 488 Comment
  CDA37651  Chylismia claviformis subsp. aurantiaca T. C. Fuller 1962-4-4 7996 Riverside Highway 99 [later renumbered Highway 86] to Indio, 1.3 miles north of Oasis. 0 Comment
  JOTR38683  Chylismia claviformis subsp. aurantiaca Hodges, Stephen R. 2017-2-7 699 Riverside Joshua Tree National Park. Little San Bernardino Mountains, West Deception Canyon, near the mouth of the canyon just north of the park boundary Comment
  UC1184373  Chylismia claviformis subsp. aurantiaca Peter H. Raven 1958-3-1 11752 Riverside along US Hwy 95 37.5 mi n Blythe (near Colorado River) Comment
  UCD103919  Chylismia claviformis subsp. aurantiaca Peter H. Raven 1958-2-15 11570 Riverside Corn Springs, Chuckwalla Mountains. Comment
  RSA466606  Cistanthe monandra A. C. Life 1928-3-17 s.n. Riverside Colorado Desert, Painted Canyon Comment
  RSA772019  Cistanthe monandra Orlando Mistretta, Duncan Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4951 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
  RSA0013348  Cistanthe monandra C. P. Cowan 1978-4-23 1181 Riverside ESE slope above San Jacinto tramway parking lot, Chino Canyon. 570 Comment
  RSA221049  Clarkia bottae E. W. Lathrop 1966-5-17 6543 Riverside 4 mi. W of Corona, between Tin Mine Canyon and Santiago Peak. 610 Comment
  UC1532828  Clarkia purpurea Robert F. Thorne, Earl Lathrop 1975-5-25 45559 Riverside Rancho California Santa Rosa Plateau, Mesa de Burro 609 Comment
  UC634711  Clarkia purpurea subsp. quadrivulnera H. L. Mason 1926-4-30 3135 Riverside 2 mi s Temecula Comment
  RSA561063  Clarkia similis Steve Boyd, T. S. Ross, Dave Bramlet 1993-5-12 7350 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
  UCR112821  Clarkia similis A. C. Sanders 1997-5-1 20608 Riverside Lake Skinner area, north foot and lower slopes of Black Mtn., edge of Crown Valley on E side of Rawson Canyon 671 Comment
  CLARK-A1528-1313  Clematis pauciflora Cameron Duncan 1966-3-27 Riverside Woodcrest 548 Comment
  SD143769  Clematis pauciflora Scott D. White 1997-5-25 5251 A Riverside San Jacinto Mts. Bautista Canyon: Hixon Trail (USFS No. 2E43), between trailhead at Bautista Cyn. Rd. and intermittent stream crossing 792 Comment
  RSA0117428  Collinsia concolor Steve D. Boyd, Tim S. Ross, Mike Hammitt 1991-5-2 6062 Riverside Vail Lake region, SW and W flanks of Billy Goat Mountain, 3 miles N Hwy 79, 1 mile W of Hwy 371, N of Aguanga. 600 Comment
  UCR104917  Collinsia concolor A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20667 Riverside San Jacinto Mountains, north side along Hwy 243, 1.5 mi below Twin Pines Ranch Road (McMullen Flat), north slope of Peak 3740 1067 Comment
  UCR24900  Collinsia concolor A. C. Sanders 1980-7-18 1630 Riverside San Jacinto Mtns., Thomas Mountain: Thomas Mountain Campground to the summit at the lookout 2073 Comment
  HSC83072  Condalia globosa var. pubescens A. C. Sanders, et al. 1986-3-1 6042 Riverside W side of Chuckwalla Mtns, 9 miles S of Hwy I-10 on the Gasline Road, 2 mi. airline S of the Model Mine 579 Comment
  SBBG55041  Condea emoryi M. Dimmitt 1965-4-24 142 Riverside Cathedral Cyn 304 Comment
  RSA335030  Convolvulus arvensis Steve Boyd 1985-7-23 1003 Riverside 5.2 mi. west of Rancho California on De Luz Rd. 396 Comment
  RSA512133  Convolvulus arvensis Ed LaRue 1989-4-21 s.n. Riverside Moreno Valley, ca. 1 mi S of Hwy 60 on Nason St. Adjacent to W side of Nason, S of Dracaea Ave. Comment
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Aug 26 2010
  UCR37486  Conyza bonariensis Steve Boyd 1981-3-2 s.n. Riverside Peninsular Range, Dawson Canyon, Gavilan Hills Comment
  POM1812  Corallorhiza maculata I. M. Johnston 1916-8-1 s.n. Riverside Round Valley, San Jacinto Mountains. 2744 Comment
  UCR146125  Cordylanthus nevinii Michael Denslow, Firoozeh Navid- Ara, Valerie Soza 2003-7-15 1453 Riverside Peninsular Ranges; San Jacinto Mountains, Northeast of South Ridge trailhead, east of Idyllwild 2012 Comment
  UCR178201  Cordylanthus rigidus Tracy Tennant, Jeffrey Ross 1998-7-21 MOR- 645 Riverside San Bernardino Mtns., Morongo Indian Reservation, ridge east of upper Hathaway Canyon, west of Burro Flats 1037 Comment
  UCR262246  Cordylanthus rigidus T. B. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-23 3737 Riverside San Jacinto Mountains, San Jacinto River Canyon, along South Fork Trail (FSR 2E17), c. halfway between Hwy 74 and the bottom of the canyon 1274 Comment
  JOTR28748  Cordylanthus rigidus subsp. setiger La Doux, Tasha, Ileene Anderson 2004-10-4 1640 Riverside Joshua Tree National Park. STOP 1 = Little SB Mtns; above Keys Ranch 1277 Comment
  POM243633  Cordylanthus rigidus subsp. setiger E. C. Jaeger 1938-10-2 s.n. Riverside Little San Bernardino Mountains. 1220 Comment
  UC1523633  Cordylanthus rigidus subsp. setiger Robert F. Thorne, Steve Boyd, and Earl Lathrop 1985-7-18 61201 Riverside Cole Canyon Santa Rosa Plateau, Nature Conservancy Reserve 535 Comment
  UC89472  Coreopsis bigelovii W. G. Wright Riverside Colorado Desert Comment
  SEINET11856551  Coreopsis californica S. B. Parish, Parish, W. F. 1881-1 224 Riverside Whitewater Riv Comment
  RSA33795  Corethrogyne filaginifolia Norman C. Cooper 1943-9-11 902 Riverside San Jacinto Mtns. below Idlewild. 1067 Comment
  UC895241  Corethrogyne filaginifolia I. W. Clokey and E. G. Anderson 1935-8-21 6963 Riverside e Keen Camp P.O. 1350 Comment
  UCR41815  Cotula australis A. C. Sanders 1986-4-13 6469 Riverside Riverside, Riverside, residential garden, 422 Campus View Drive 335 Comment
  RSA507504  Cressa truxillensis Steve Myers 1988-6-4 s.n. Riverside Rancho California area, E of Winchester Road, between Auld Rd. & Borel Rd 396 Comment
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Mar 20 2011
  RSA503149  Crossosoma bigelovii G. D. Wallace 1966-3-26 233 Riverside Whitewater Canyon; 13 mi. E. of Banning, San Bernardino Nat'l For. 427 Comment
  UCR102749  Crossosoma bigelovii B. G. Pitzer, O. F. Clarke, S. Reed, G. Ruiz 1998-3-7 3562 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
  JOTR28933  Croton californicus La Doux, Tasha, Bill Truesdell, Erin Babich 2005-3-7 1168 Riverside Joshua Tree National Park. Eagle Mountains, southeast end near Pinto Wells 316 Comment
  PASA1841  Croton californicus R. Peirce 1966-4-21 Riverside Windy Point, 2 mi. S. of White Water P.O. Comment
  RSA651889  Croton californicus David B. Dunn 1948-3-14 s.n. Riverside 5 mi. west of Thousand Palms. Comment
  RSA763979  Croton californicus Justin M. Wood, D. M. Ray 2010-10-21 3024 Riverside Chuckwalla Valley 8 kilometers SW of Coxcomb Mountains and 3.5 kilometers E of Kaiser Road. 198 Comment
  SEINET6062496  Croton californicus S. B. Parish Riverside Idyllwild Area. Strawberry Creek between crossing at Circle Drive and Humber Park. Comment
  SEINET9253085 Image available Croton californicus Unknown 1944-1 1546 Riverside Banning 701 Comment
  UCD141962  Croton californicus V. W. Steinmann; M. T. Wedlake 1995-4-8 655 Riverside Along Hwy. 111; 1 km northwest of Palm Springs (measured from the intersection with San Rafael Dr.); south of the highway. 215 Comment
  UCR174941  Croton californicus Jennifer H. Jones, Toby Bartels 2006-4-23 283 Riverside Transverse Ranges; San Bernardino Mtns., Banning Pass, NE of Cabazon along powerline road and in Deep Canyon 744 Comment
  UCR41370  Croton californicus N. M. Fellows 1985-1-5 63 Riverside San Jacinto Mtns, Oasis de los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the N foot of San Jacinto Mtn., 1 mi west of Snow Creek Village 506 Comment
  SD229138  Croton setiger Dick Schwenkmeyer 2012-10-16 934 Riverside Approx. 2 mi. south of U.S. Highway 10 at Cabazon. 505 Comment
  UCR89650  Crypsis schoenoides 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
  CDA40492  Cryptantha angustifolia G. D. Barbe, T. C. Fuller 1973-2-27 1042 Riverside Mouth of Box Canyon Wash, west side of Coachella Canal, on Highway 195 east of Mecca. 0 Comment
  POM368206  Cryptantha angustifolia F. R. Fosberg 1932-3-13 10623 Riverside Thousand Palm Canyon, Coachella Valley Comment
  RSA611016  Cryptantha angustifolia N. Dunn, A. M. Martin 1932-3-26 s.n. Riverside Coachella Comment
  RSA776817  Cryptantha angustifolia Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-27 1090 Riverside Chuckwalla Mountains, Corn Springs Road, Crossing of main wash which drains Chuckwallas on east side toward Chuckwalla Bench 427 Comment
  RSA791929  Cryptantha angustifolia D. Silverman 2010-3-24 7823 Riverside South Palen Lake, Chuckwalla Valley, 5.1 km southeast of Sidewinder Well, 2.7 km southwest of Palen Dunes Dr., 3.4 km north of interstate 10. 133 Comment
  SBBG100804  Cryptantha angustifolia W. L. Halvorson 1977-2-5 77 -4 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SEINET3005003  Cryptantha angustifolia G. Rink 2011-4-4 10431 Riverside Northwest of Blythe, east of the McCoy Mtns, desert pavement 182 Comment
  UC79221  Cryptantha angustifolia C. R. Orcutt 1889-1 Riverside Colorado Desert Comment
  UCR18176  Cryptantha angustifolia A. C. Sanders 1978-4-2 00183 Riverside Coachella Valley, Hidden Valley, near the mouth of Deep Canyon 183 Comment
  UCSB10403  Cryptantha angustifolia Gunnerson, Robert 1953-3-21 Riverside 12 mi. east of Indio Comment
  SBBG81500  Cryptantha barbigera S. A. Junak 1983-3-23 1618 Riverside Jefferson Rd, across from entrance to Cahuilla Lake County Park, S of Indio Comment
  RSA0065499  Cryptantha barbigera David B. Dunn, Lint 1955-4-1 11838 Riverside Pushawalla Canyon, Indio Hills. Top of the east hill. Comment
  SDSU21880  Cryptantha barbigera var. fergusoniae Kristen Hasenstab, M. G. Simpson 2008-4-2 66 Riverside Joshua Tree National Park. North side of Split Rock, 100ft south of the trail wrapping around Split Rock. 1294 Comment
  UCR256908  Cryptantha corollata Naomi Fraga, Duncan S. Bell 2009-5-6 2703 Riverside Arroyo Seco SE of Dripping Springs Campground and Fire Station 518 Comment
  SEINET3409358  Cryptantha costata G. Rink, M. Honer 2013-3-17 11856 Riverside About ten miles west of Blythe, to the south of an existing solar power plant, on the site of the proposed Quartzite solar power plant 125 Comment
  RSA685135  Cryptantha decipiens A. C. Sanders, K. Rose, D. Woodard 1995-3-22 16212 Riverside Coachella Valley: mouth of San Gorgonio Pass, alluvial fan just east of the mouth of Whitewater Canyon between Windy Point and Interstate 10. 370 Comment
  HSC101202  Cryptantha inaequata Jim Andre 2012-3-19 21382 Riverside Palen Mountains; along Palen Pass Rd. at Pallen Pass. 383 Comment
  POM3894  Cryptantha intermedia F. L. Robinson, Crocker 1916-4-5 s.n. Riverside Elsinore Region Comment
  RSA0106802  Cryptantha intermedia Mitch Provance 2012-5-24 512 -04 Riverside San Bernardino Mountains: Banning, foothills and alluvial fan near border with Beaumont, NE of the intersection of Highland Springs Avenue and Wilson St. 869 Comment
  RSA771755  Cryptantha intermedia Orlando Mistretta, Duncan Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4632 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  SBBG53744  Cryptantha intermedia S. Boyd 1980-4-8 Riverside Harford Springs County Park, located on the NW corner of the Gavilan Plateau Comment
  SD136884  Cryptantha intermedia Steve Boyd 1986-4-2 1600 Riverside Gavilan Plateau, Gavilan Hills: Harford Springs County Park 609 Comment
  UCR241692  Cryptantha intermedia T. B. Salvato 2013-3-22 7400 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
  UCR92795  Cryptantha intermedia Scott D. White 1994-3-29 1939 Riverside Beaumont Badlands, near county dump and old DeAnza Cycle Park, north of Hwy 60 701 Comment
  SEINET12280820  Cryptantha intermedia Unknown 1936-1 12768 Riverside W of Bonning Comment
  RSA0075624  Cryptantha intermedia var. johnstonii F. W. Peirson 1918-03 1020 Riverside Field near Indio. Comment
  RSA0106706  Cryptantha maritima Duncan S. Bell, Amanda Turek 2010-4-9 756 Riverside East side of the Arica Mountains, near the center of the range; approx. 1.75 air mile west of Priest Well. 439 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
  SD260026  Cryptantha maritima J. M. Andre 2013-3-27 24831 Riverside Riverside Mountains: along Wilson River Crossing Rd, 0.8 mi. east of Hwy 95, 12.4 mi. south of Vidal Jct. Parker SW 7.5'Q 114 Comment
  UCR18174  Cryptantha maritima A. C. Sanders 1978-4-2 00202 Riverside Coachella Valley, Hidden Valley, near the mouth of Deep Canyon 183 Comment
  UCR245257  Cryptantha maritima Jim Andre 2012-3-19 21293 Riverside Sonoran (Colorado) Desert, north end of Orocopia Mountains, 0.5 mi. south of junction of Box Canyon Rd and I-10 Fwy, 23 miles east of city of Coachella 470 Comment
  UCR52017  Cryptantha maritima var. maritima Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2180 Riverside Sonoran (Colorado) Desert, NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  RSA0080319  Cryptantha micrantha Sarah J. De Groot, Cheryl Sevilla 2015-2-24 s.n. Riverside Sand dunes along Blythe-Rice (Midland) Road, Rice Valley, south of Turtle Mountains, east of Arica Mountains, 1.9 miles south of Highway 62 and Rice. 234 Comment
  RSA340179  Cryptantha micrantha R. F. Thorne, W. A. Tilforth 1980-5-28 54188 Riverside San Bernardino Mountains: Whitewater ridge above old bridge. Comment
  SFV20143  Cryptantha micrantha J. N. Hogue, J. M. Wrublik 2000-5-30 153 .3 Riverside San Jacinto Mountains Black Mountain. Black Mountain Trail at Cinco Poses Spring. 2130 Comment
  UC551812  Cryptantha micrantha F. R. Fosberg 1932-3-13 10625 Riverside Thousand Palms Canyon Comment
  UC573124  Cryptantha micrantha Margaret Stason 1927-3-12 Riverside Painted Canyon Colorado Desert Comment
  UC665774  Cryptantha micrantha Ira L. Wiggins 1941-3-24 9566 A Riverside 0.3 mi s Myoma (4.6 mi n of Indio) Comment
  RSA543895  Cryptantha micromeres Steve Boyd 1991-5-20 6274 Riverside Santa Ana Mountains, NW of Lake Elsinore. Lower Rice Cyn, just inside Cleveland Nat. For. boundary. 573 Comment
  RSA557870  Cryptantha micromeres Steve Boyd, Orlando Mistretta 1992-4-23 7060 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Along San Mateo Creek from Riverside County line, following San Mateo Trail upstream to the confluence with Bluewater Canyon. 244 Comment
  RSA679821  Cryptantha microstachys LeRoy Gross, Valerie Soza 2003-5-8 828 Riverside San Jacinto Mountains region: North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 777 Comment
  UCR241817  Cryptantha microstachys A. C. Sanders, Timothy W. Chumley 2013-4-2 40749 Riverside Peninsular Range, Temescal Canyon between Horsethief Canyon Rd. and Hostettler Rd., above I-15 Fwy, SE of Corona (Lee) Lake 396 Comment
  UCR48412  Cryptantha microstachys Steve Boyd 1986-4-22 1731 Riverside Temescal Canyon, Walker Canyon area, where Temescal Creek (=Alberhill Creek) flows between Alberhill Mountain and Gavilan Hills 427 Comment
  UCR91398  Cryptantha microstachys Scott D. White 1995-4-5 2717 Riverside Moreno Valley, Base of slope in 'Badlands', off [Moreno-Redlands] Blvd 640 Comment
  UCR98694  Cryptantha microstachys 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
  RSA164814  Cryptantha muricata Wesley O. Griesel 1958-7-5 s.n. Riverside Dark Canyon. 1829 Comment
  JEPS26234  Cryptantha nevadensis Marjorie D. Clary 1932-3-2 1650 Riverside 2 mi w Coral Reef Ranch; Colorado Desert, Coachella 60 Comment
  UCR216089  Cryptantha pterocarya var. cycloptera Jim Andre, T. La Doux 2009-2-25 10808 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains; c. 0.5 mi. south of I-10 freeway at Eagle Mountain Road exit 414 Comment
  CLARK-A1528-2232  Cryptantha racemosa John C. Roos 1948-5-1 3815 Riverside Whitewater 609 Comment
  UC217942  Cryptantha racemosa P. A. Munz, D. Keck 1922-4-9 4829 Riverside s base Eagle Mts.; Colorado Desert 228 Comment
  UCR50381  Cryptantha utahensis F. R. Fosberg 1929-3-30 S- 00710 Riverside Western Colorado Desert/ San Jacinto Mtns, Palm Springs, Andreas Canyon Comment
  MACF019761  Cupressus arizonica var. glabra Trudy R. Ericson 1975-10-5 415 Riverside Hurkey Creek Campground 1371 Comment
  POM3647  Cuscuta californica I. M. Johnston 1917-6-5 1255 Riverside Hills south of Arlington 366 Comment
  RSA192297  Cuscuta ceanothi E. W. Lathrop 1966-9-14 6590 Riverside 3 miles SW of Murrieta. Comment
  RSA662434  Cycloloma atriplicifolium J. C. Roos 1965-9-26 s.n. Riverside In Indio. Comment
  RSA605744  Cyclospermum leptophyllum A. C. Sanders, G. Helmkamp 1996-3-17 17994 Riverside Coachella Valley: Rancho Mirage, intersection of Dinah Shore Dr. and Duval Dr., at Cathedral City limits, 2 mi. E. of Date Palm Dr. and 2 mi. S of Ramon Rd. 91 Comment
  UC403468  Cylindropuntia chuckwallensis Munz and Keck 1922-4-12 5017 Riverside Aztec Well Colo. Desert, Chuckawalla Mts. Comment
  UCSB18434  Cylindropuntia ganderi del Moral, Roger 1964-5-10 Riverside State Highway 74; 11.3 miles S of junction with State Highway 111 914 Comment
  SEINET9037432 Image available Cylindropuntia ganderi var. ganderi M. A. Baker 2015-1 18385 .2 Riverside San Jacinto Mountains, 25km SSE of central Palm Springs, 800m WSW of Sugarloaf Mountain 1236 Comment
  JEPS66895  Cylindropuntia ramosissima W. L. Jepson 1912-10-29 5247 Riverside Riverside Mts.; along Colorado River 91 Comment
  CDA38930  Cyperus difformis Steve Boyd 1989-7-23 3788 Riverside City of Riverside, Santa Ana River, just downstream of old city dump at west extension of Rubidoux Ave. 0 Comment
  UCR119811  Cyperus erythrorhizos A. C. Sanders, T. B. Salvato, E. J. Lawlor, C. L. Sanders, et al 1999-8-22 23064 Riverside San Jacinto Mtns., NW shore of Lake Hemet, at Forest Service day use area 1322 Comment
  RSA0106810  Cyperus involucratus Mitch Provance 2012-11-9 612 -52 Riverside San Bernardino Valley: Box Springs Canyon, SW base of the Box Springs Mountains, E side of Interstate 215, 0.25 mi SE of the intersection of Gernert Rd. and Watkins Dr. 422 Comment
  SEINET3910348  Cyperus involucratus Robert F. Thorne 1965-4-4 41861 Riverside San Jacinto Mountains: tahquitz Falls, Tahquitz Canyon.; 0 Comment
  UC306115  Cyperus laevigatus Crawford and Johnston 1917-6-8 16 Riverside Santa Ana R. near Corona; Santa Ana R. Comment
  CDA20620  Cyperus rotundus K. E. Hoffmaster July 1958 s.n. Riverside Southern California; Indio. 0 Comment
  RSA628533  Cyperus squarrosus A. C. Sanders, T. Tennant, J. S. Ross 1998-8-20 22233 Riverside San Bernardino Mountains: Morongo Indian Reservation, lower Millard Canyon. 841 Comment
  UCR151402  Dactylis glomerata Scott D. White 1999-6-6 7450 Riverside San Jacinto Mnts, Idyllwild Area: Near Idyllwild Community Service Dist. sewage ponds of USFS Road 5S24.2 1463 Comment
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Oct 26 2009
  POM14018  Dalea mollis P. A. Munz 1922-4-8 4738 Riverside Mecca, Colorado desert. -30 Comment
  UCSB3054  Dalea mollis Broder, Richard 1958-03 Riverside 5.8 miles E of Desert Center on U.S. 60-70 Comment
  UC1176848  Dalea mollissima Lewis S. Rose 1959-1-10 59007 Riverside La Quinta 15 Comment
  CLARK-A1528-2775  Dalea spinosa John C. Roos 1947-2-15 3233 Riverside Eagle Mountains Comment
  CAS-BOT-BC283038  Dasyochloa pulchella E. A. McGregor 1917-3-18 794 Riverside 5 mi. up Painted Canyon Comment
  RSA736535  Datisca glomerata Scott D. White 2004-4-26 10268 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Indian Creek Watershed. 518 Comment
  UCR199727  Datisca glomerata Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10674 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Indian Creek and adjacent uplands, from confluence with San Jacinto River to c. 2 miles upstream 610 Comment
  UC1234726  Datura wrightii David P. Gregory 1961-6-6 469 Riverside near the Santa Ana River w Prado Dam; near the Santa Ana River, w of Prado Dam Comment
  SBBG103861  Daucus pusillus M. A. Patten 1992-5-7 92 -30 Riverside Santa Rosa Plateau, along Via Vaquero at Via Oesta, ca. 5 km W of Temecula Comment
  UCR154737  Daucus pusillus T. B. Salvato, Kent Beaman 2005-5-16 772 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
  JEPS122468  Deinandra kelloggii J. M. Andre 2012-6-15 30542 Riverside San Jacinto Mountains; west slopes of range slong Poppet Flat Road, Poppet Creek Canyon, 3.2 miles west of Highway 243. Lake Fulmor 7.5' Q. Comment
  CAS-BOT-BC334480  Deinandra paniculata R. E. Riefner, Jr. 2010-6-5 10 -50 Riverside City of Riverside, Sycamore Canyon Park, W ca 0.5 mi from Cottowood Ave. and Sycamore Canyon Blvd. 135 Comment
  CHSC100697  Deinandra paniculata R. E. Riefner Jr. 2007-6-16 07 -263 Riverside City of Hemet, Bautista Canyon, 2.8 mi E of Fairview Ave. on Bautista Rd. UTM 11S 0513785E 3728497N. NAD 83. 692 Comment
  UCSB1981  Delphinium parishii subsp. parishii Graney, Don 1953-3-20 Riverside one mile up White Water Canyon Comment
  RSA0020480  Delphinium parishii subsp. parishii J. D. Olmsted 1962-5-1 423 Riverside 5 degrees NE slope just west of top of highest Southern California waterfall; 1/4 mi. SE of Falls Plateau, Snow Canyon N of Mt. San Jacinto. 945 Comment
  LA207623  Delphinium parishii subsp. subglobosum Carl Epling; 1937-5-7 sn Riverside 1 mi. above Pinon Flats, Palms to Pines Hwy Comment
  SDSU10045  Delphinium parryi H. Wedberg 1962-5-23 942 Riverside 4.8 miles from hwy 395 at Rainbow, on road to Santa Margarita River and Temecula Canyon. 366 Comment
  CAS-BOT-BC121431  Delphinium parryi subsp. parryi Philip Alexander Munz; Street; Williams 1919-5-28 105739 Riverside San Gorgonio Pass near Banning 701 Comment
  GMDRC6553  Dendromecon rigida J. M. Andre 2012-6-15 30506 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 1172 Comment
  RSA772003  Dendromecon rigida Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4969 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
  RSA772863  Dendromecon rigida Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4815 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
  UC855080  Dendromecon rigida I. W. Clokey and E. G. Anderson 1935-4-16 6730 Riverside above Hemet 700 Comment
  UCR49241  Dendromecon rigida Steve Boyd 1986-4-22 1748 Riverside Temescal Canyon, stable alluvial benches of Indian Wash just south of Interstate Hwy 15 Comment
  RSA311  Dendromecon rigida subsp. rigida J. T. Howell 1928-7-7 1035 Riverside Santa Ana Mts. above Glen Ivy. 610 Comment
  RSA752789  Deschampsia danthonioides Scott D. White, Justin M. Wood 2009-5-21 12855 Riverside Garner Valley, near abandoned duck ponds, S of Quinn Flat. 1357 Comment
  RSA198989  Deschampsia danthonioides var. gracilis R. F. Thorne, E. W. Lathrop, Ora M. Clark, S. Carlquist 1968-4-18 37430 Riverside Santa Rose Plateau: Mesa de Colorado, Rancho California. 671 Comment
  UCR24984  Deschampsia elongata A. C. Sanders 1980-8-21 1778 Riverside San Jacinto Mountains, Mt. San Jacinto Wilderness Area. east of Saddle Junction at the head of Tahquitz Creek, c. 2 mi NE of Idyllwild 2409 Comment
  SBBG2468  Descurainia pinnata H. and M. Dearing 1942-3-1 4804 Riverside Cathedral City Comment
  SEINET12005374  Descurainia pinnata subsp. halictorum Unknown 1936-1 12757 Riverside E of Banning Comment
  SD212681  Dicentra chrysantha A. C. Sanders, T. B. Salvato 2006-6-2 33084 Riverside Hills between Murrieta and Menifee Valley, west of I-215, South of Bundy Canyon/Scott Road and North of Clinton Keith Road. 548 Comment
  SEINET272343 Image available Dichelostemma capitatum A. C. Sanders, G. Helmkamp 1997-3-15 19923 Riverside Lake Skinner area: hill (1864) E of Skinner Lakeat NW end of Tucalota Hills 549 Comment
  IRVC53  Dichelostemma capitatum subsp. capitatum Linda Stilgenbauer 1965-4-17 HS 0097 Riverside Ortega Hwy [74]. Peninsular Ranges, Santa Ana Mountains Comment
  RSA696748  Dicoria canescens J. Russell Bruff 1927-11-24 3 Riverside Whitewater. Comment
  UC1177917  Dicoria canescens S. Galen Smith 1948-1-1 344 Riverside 10 mi n Coachella Comment
  UCR92349  Digitaria sanguinalis Scott D. White, S. Ogg 1994-10-17 2499 Riverside City of Temecula, Murrieta Creek channel at confluence with Santa Gertrudis Creek 320 Comment
  RSA0016055  Diplacus bigelovii var. bigelovii F. W. Peirson 1920-2-16 1121 Riverside Palm Canyon stream below the canyon, Palm Springs. region Comment
  CAS-BOT-BC150679  Diplacus longiflorus Carl B. Wolf 1932-5-24 3657 Riverside No. base of San Jacinto Mts. Snow Creek Canyon, 1 mi. above fish hatchery 792 Comment
  SBBG102809  Diplacus longiflorus D. M. Thompson 1992-5-18 1069 Riverside Lakeview (at Roman Expressway) along Davis Rd; 3.8 road mi S of St Hwy 60 484 Comment
  SD186337  Diplacus puniceus Andy C. Sanders, Mike Misenhelter 2005-3-23 29260 Riverside Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  SBBG120835  Diplacus puniceus A. C. Sanders with T. B. Salvato, K. Volansky 2006-5-24 32565 Riverside hills between Murrieta and Menifee Valley, W of I-215, S of Bundy Cyn/Scott Rd and N of Clinton Keith Rd 518 Comment
  JEPS2748 Image available Ditaxis claryana Marjorie Clary 1932-12-16 1707 Riverside 10 mi w Coachella (bajadas at base of Santa Rosa Mountains); Coachella Valley; Santa Rosa Mts., Coachella Valley, W of Coachella, Colorado Desert. Comment
  UC494679  Ditaxis claryana Philip A. Munz 1932-3-14 12002 Riverside Deep Canyon Coachella Valley, Deep Canyon 91 Comment
  RSA4939  Ditaxis lanceolata C. B. Wolf 1932-4-27 3058 Riverside North base of Chuckwalla Mountains, 5 miles East of Desert Center, Colorado Desert. 152 Comment
  UC311627  Ditaxis lanceolata Theodore Labouchere April, 1915 204 Riverside near mouth of Chino Canyon; Colorado Desert, e. base San Jacinto Mt., not far from Palm Comment
  SD109126  Ditaxis neomexicana Grady L. Webster, R. Hildreth 1966-12-9 7456 Riverside Joshua Tree National Monument, NW end of Pinto Basin, 2.8 miles NW of Cholla Gardens 790 Comment
  UCR103590  Ditaxis neomexicana George K. Helmkamp, E. A. Helmkamp 1998-2-18 2725 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  UCR274222  Ditaxis serrata var. californica Duncan S. Bell, Evan Meyer 2014-10-28 7660 Riverside Santa Rosa Mountains, the foot of the mountains between Toro Canyon and Martinez Canyon 169 Comment
  CAS-BOT-BC43590  Dithyrea californica S. B. Parish; W. F. Parish 1892-4-1 s.n. Riverside Borders of the Colorado Desert. Whitewater. Comment
  HSC101274  Dithyrea californica Jim Andre 2012-3-19 21349 Riverside Chuckwalla Valley; along Hwy 177, 8.6 mi. NE of Jct with I-10. 152 Comment
  POM14563  Dithyrea californica R. W. Campbell 1922-3-12 s.n. Riverside Palm Springs Comment
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Jul 4 2010
  RSA66544  Dithyrea californica F. W. Peirson 1920-2-14 4178 Riverside Whitewater Station, Colorado Desert Comment
  RSA66546  Dithyrea californica F. W. Peirson 1926-1-31 6484 Riverside Abundant on rocky slopes, Dos Palmas [Spring], Colorado Desert. Comment
  UCR134596  Dithyrea californica Marisa Sripracha, Kyle Boyd 2004-2-14 012 Riverside Sonoran (Colorado) Desert, Myoma, near 38th Street and Washington Ave, on the Coachella Valley Preserve 120 Comment
  CAS-BOT-BC412632  Dodecahema leptoceras Steve Boyd 1986-4-19 1692 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Road Comment
  RSA5472  Dodecatheon alpinum subsp. majus Carl B. Wolf 1932-8-5 s.n. Riverside On trail from Tahquitz Valley to San Jacinto Peak; head of a fork of Tahquitz Creek. San Jacinto Mountains. 2744 Comment
  CAS-BOT-BC129970  Dodecatheon redolens H. M. Hall 1901-7-1 2335 Riverside Vicinity of Deer Springs 2743 Comment
  RSA342815  Downingia cuspidata R. F. Thorne, M. Z. Thorne, W. Wisura 1978-5-21 51982 Riverside Santa Rosa Plateau: Mesa de Colorado. 610 Comment
  UCSB52638  Downingia cuspidata Thorne, Robert; Thorne, M.; Wisura, Walter 1978-5-21 Riverside Santa Rosa Plateau; Mesa de Colorado 609 Comment
  LA204314  Draba cuneifolia Carl Epling; 1941-4-5 sn Riverside Palms to Pines Highway Comment
  UC856127  Draba cuneifolia P. A. Munz, D. Keck Apr 9 1922-Apr 12 1922 4781 Riverside vicinity Corn Springs (Chuckwalla Mountains); Colorado Desert, Chuckwalla Mountains 457 Comment
  RSA423467  Dudleya Elizabeth A. White 1928-04 s.n. Riverside Near 7 [Seven] Palms. Comment
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Aug 18 2010
  RSA304575  Dudleya abramsii A. C. Sanders 1981-7-11 2205 Riverside Bull Canyon Road just inside the Forest Service boundary. Comment
  UC1015134  Dudleya lanceolata Reid Moran 1946-5-25 2057 Riverside s side Box Springs Mtn 548 Comment
  RSA590724  Dudleya multicaulis R. E. Riefner 1996-5-16 96 -72 Riverside East side of Temescal Wash, community of El Cerrito Comment
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Jul 13 2010
  SDSU13833  Dudleya pulverulenta W. Miller with C. Mosse 1972-7-20 Riverside Comment
  UCR55897  Dudleya saxosa J. A. Adams 1965-4-17 123 Riverside Sonoran (Colorado) Desert, Hwy 111, 2 mi east of Palm Springs near foothills 244 Comment
  CAS-BOT-BC109610  Dudleya saxosa subsp. aloides Ynez Whilton Winblad 1937-3-14 s.n. Riverside Near Palm Springs. Comment
  RSA0047811  Dysphania pumilio A. C. Sanders 2013-7-6 40841 Riverside Idyllwild, SE part of town near Saunders Meadow, west end of Tahquitz View Dr. toward Crestview Dr. 1707 Comment
  UCR14557  Dyssodia porophylloides A. C. Sanders 1974-5-12 0100 Riverside Santa Rosa Mtns., San Bernardino National Forest, Cactus Spring Trail between Pinyon Flats and Horsethief Creek 1159 Comment
  UCR72237  Dyssodia porophylloides Theo Glenn 1991-5-27 91- 121 Riverside Sonoran (Colorado) Desert, Palen Mountains, NE of Desert Center 360 Comment
  CAS-BOT-BC334247  Echeveria A. C. Sanders 2010-5-23 38426 Riverside Riverside, yard at 5081 Magnolia Ave., at corner of Chapman Place. Comment
  SEINET8060926 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-11 13 Riverside Barstow SE quad. Barstow Rd. entry to BLM limited use land. N of saloon. West side of Rd. on low hill. Stoddard Valley. between power lines to the south, and double power lines to the north. Directly under power lines, near base of tower. West of the hill 900 Comment
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Jun 5 2016
  RSA0125621  Echinocereus engelmannii var. engelmannii G. Ross Robertson s.n. Riverside Palm Springs, Colorado Desert. Comment
  SEINET3071476  Echinocereus mojavensis Marc A. Baker, Michelle Cloud-Hughes 2011-12-17 17494 Riverside Queen Mountain quadrangle, zone 11 0585753mE 3764902mN NAD83, 300m south of Desert Queen Mine (McHaney's Mine), 12.5 km SSW of Twenty Nine Palms, 1.5km ESE of Negro Hill 1360 Comment
  CAS-BOT-BC197012  Echinochloa colona Malcom A. Nobs; S. Galen Smith 1948-9-3 488 Riverside Imperial Valley. 2 miles north of Indio Comment
  RSA0106466  Echinochloa crus-galli Alan Romspert 2000-7-28 s.n. Riverside 60 Fwy Bridge and Santa Ana Riverbed transect. Comment
  SEINET270227 Image available Ehrharta erecta A. C. Sanders, O. F. Clarke 1996-2-17 17952 Riverside Residence of O.F. Clarke 1012 Spruce Street 305 Comment
  UCR272460  Eleocharis geniculata Mitch Provance 2012-8-1 712- 04 Riverside Colorado Desert, Thousand Palms Canyon Road, +- 2/3 of the way up into the canyon. 140 Comment
  SEINET13709830  Eleocharis macrostachya J. Adams, J. Adams (Botany) 1966-1 717 Riverside Santa Rosa Plateau, 15 Mi E of De Luz 2500 Ft 762 Comment
  UCR68862  Eleocharis montevidensis Steve Boyd, T. S. Ross 1990-5-11 4664 Riverside Peninsular Range, Cleveland National Forest: Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground 610 Comment
  POM14331  Eleocharis palustris Phillip A. Munz, I. M. Johnston 1922-5-18 5323 Riverside 1/2 mile south of Lake Elsinore. Comment
  SBBG101684  Eleocharis palustris S. Boyd, T. Ross, D. Zippin, T. Coerbauer 1991-6-14 6333 Riverside Skunk Hollow area, 2 mi E of Murrieta Hot Springs just W of Second San Diego Aqueduct Comment
  UCR269247  Elymus condensatus Michael Wall 2011-8-5 611 Riverside Peninsular Range; San Jacinto Mountains, along Bautista Canyon Rd., confluence of unnamed canyon c. 1.5 miles SE of junction with Fairview Ave. 629 Comment
  UC729841  Elymus elymoides subsp. elymoides Carl B. Wolf 1932-8-5 3948 Riverside along trail from Tahquitz Valley to San Jacinto Peak; San Jacinto Mts. 2621 Comment
  UC821521  Elymus elymoides subsp. elymoides P. A. Munz 1922-6-28 5883 Riverside Santa Rosa Mts.; higher slopes 2407 Comment
  RSA559319  Elymus glaucus subsp. glaucus Steve Boyd, Timothy S. Ross, D. E. Bramlet 1992-5-13 7368 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Los Alamos Canyon at mouth of Wildhorse Canyon. 412 Comment
  UCR24986  Elymus hispidus A. C. Sanders 1980-7-18 1677 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
  RSA740648  Elymus trachycaulus subsp. trachycaulus Scott D. White, Justin M. Wood 2008-6-19 12273 Riverside Meadows at Baldy Mtn. 1585 Comment
  UCR57206  Elymus triticoides Jeri Hirshberg 1989-6-9 s.n. Riverside Santa Rosa Plateau, Santa Ana Mtns, S of town of Murrieta. Mouth of a small SW-draining channel on the SW side of Mesa de Burro Comment
  RSA0125989  Emmenanthe penduliflora Duncan S. Bell 2016-3-4 8795 Riverside Orocopia Mountains; northwestern corner of range; collecting in the Orocopia Mountains Wilderness area in an unnamed canyon approximately 3.75 air miles northwest of the summit of the range. 738 Comment
  RSA172266  Emmenanthe penduliflora Robert F. Thorne 1963-3-29 32438 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 534 Comment
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Apr 24 2011
  RSA504543  Emmenanthe penduliflora Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mountains, ca. 1 mile SE of town of Nuevo. 640 Comment
  UCR108851  Emmenanthe penduliflora Heidi A. Haid 1968-1 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR231806  Emmenanthe penduliflora Brent Barnes, A. C. Sanders, Giles Waines, UCR Plant Taxonomy Class 2007-5-12 06 Riverside Peninsular Range; San Jacinto Mtns., dirt forest service road north of Poppet Flats, west of Hwy 243 1253 Comment
  UCR57204  Emmenanthe penduliflora 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
  UCR896  Emmenanthe penduliflora J. E. Dimitman 1957-5-18 s.n. Riverside San Jacinto Mtns., Bautista Canyon 915 Comment
  JOTR32036  Emmenanthe penduliflora var. penduliflora La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler, B. Truesdell, D. Shade 2011-4-26 2266 Riverside Joshua Tree National Park. Pleasant Valley, southwestern edge of Hexie Mountains; near Squaw Tank; sandy flats among large granitic boulders and foothills (Stop 2) 1063 Comment
  UCR226583  Emmenanthe penduliflora var. penduliflora Jim Andre 2011-2-18 15817 Riverside Coachella Valley, north end of valley at base of Morong Canyon, 0.5 mi north of indian Canyon Road, 1 mi west of Hwy 62 473 Comment
  CAS-BOT-BC172827  Encelia actoni Mitch Provance; Kerry Knudsen; Petra Wester 2004-5-8 9006 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
  POM182214  Encelia actoni P. A. Munz 1932-4-24 12399 Riverside San Jacinto Mountains: Snow Creek Canyon 457 Comment
  SDSU3844  Encelia californica S. J. Barnhart 1966-4-17 660417 -15 Riverside South-west facing slope of small hill 0.1 mi. east of McAllister St. along the Metropolitan Water Co. Untility Road (dirt), which is 1.5. south-east of the intersection of McAllister St. and Victoria Ave. 457 Comment
  UC1536837  Encelia californica G. H. True Jr. 1935-3-13 96 Riverside Box Springs 365 Comment
  OBI16596  Encelia farinosa H. E. McMinn 1937-3-6 5017 Riverside About 40 mi N of Blythe; River rd Comment
  RSA709903  Encelia farinosa Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4606 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  UCR220003  Encelia farinosa A. C. Sanders 2010-11-18 38691 Riverside Peninsular Range; western Gavilan Hills, eastern edge of Corona, north end of 'radio tower' ridge, 1.85 mi. NNE (25 deg. ) of El Cerrito, 1 mi. SSE (143 deg. ) of Home Gardens, just east of large rock quarry 488 Comment
  SEINET10618306  Encelia farinosa Billy Joe Cox 1975-4-23 Cox 4130 Riverside Palo Verde, 1-3 km. W, (ca. 32 mi. S of Blythe). Riverside-Imperial Counties. 70 Comment
  SEINET10958167  Encelia farinosa David B. Dunn 1946-2-22 Dunn 1969 Riverside Hidden Springs Canyon in the vicinity of the Palms. Comment
  RSA131518  Encelia farinosa var. farinosa Ronald Basmajian 1956-3-26 29 Riverside Highway to Palm Springs from Yucca Valley. 1 mile south of Riverside-San Bernardino county line on right hand side of road. 762 Comment
  RSA151102  Encelia farinosa var. farinosa Peter H. Raven 1962-4-7 17113 Riverside Whitewater Wash 1.5 miles north of U.S. Highway 70--99. Comment
  RSA781914  Encelia frutescens Duncan S. Bell 2010-5-1 896 A Riverside Arica Mountains: northwest section of project area, approximately 10.5 air miles southwest of the ghost town of Rice, and approximately 2.6 air miles south of the junction of Highway 62 and the aqueduct access road. 291 Comment
  UC813668  Ephedra aspera I. W. Clokey 1935-4-17 6513 Riverside Cottonwood Springs Comment
  SEINET6087497  Ephedra nevadensis Unknown 1956-2-24 Riverside Idyllwild Area. Strawberry Creek between crossing at Circle Drive and Humber Park. Comment
  CAS-BOT-BC81862  Ephedra trifurca Carl B. Wolf 1932-4-29 3123 Riverside Eastern Colorado Desert, 3 mi. So. of Rice on Blythe Road 213 Comment
  SD84922  Ephedra viridis Nancy Ryan Zabriskie, Walter Zabriskie 1972-3-28 480 Riverside North Canyon, Andreas Canyon drainage, east slope San Jacinto Mountains 609 Comment
  RSA588345  Epilobium canum subsp. latifolium N. C. Cooper 1943-9-11 922 Riverside San Jacinto Mountains, Below Idyllwild. 1372 Comment
  RSA692222  Epilobium canum subsp. latifolium Scott D. White 2003-10-9 9817 Riverside Pine Cove. Lily Creek just north of crossing at Hwy 243. 1738 Comment
  RSA736659  Epilobium ciliatum subsp. ciliatum Justin M. Wood 2008-7-16 27 Riverside Gavilan Hills at Temescal Wash, near Olsen Canyon, Morgan property, Alberhill area. Comment
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Jul 31 2009
  SDSU13551  Epilobium ciliatum subsp. ciliatum W. Miller, C. Mosse 1972-7-11 Riverside Comment
  RSA249865  Epipactis gigantea Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38152 Riverside San Bernardino National Forest, San Jacinto Mountains: Lake Fulmor. 1677 Comment
  RSA381722  Epipactis gigantea M. B. Dunkle 1933-5-6 3423 Riverside Andreas Canyon, Colorado Desert. Comment
  UCR131004  Epipactis gigantea George H. Grinnell 1921-5-20 s.n. Riverside Riverside 366 Comment
  UCR24937  Epipactis gigantea A. C. Sanders 1980-7-22 1715 Riverside Peninsular Range; San Jacinto Mtns., Drainage of the N fork of the San Jacinto River, along Forest Service Road 4S02, c. 0.1 mi south of Dark Canyon campground and c. 2.5 - 3 mi north of Pine Cove 1768 Comment
  RSA180453  Equisetum telmateia var. braunii E. W. Lathrop 1965-5-7 5716 Riverside 5 miles SW of Murrieta on the De Luz Road. Comment
  UCR211726  Eragrostis Fred M. Roberts, Ileene Anderson 2005-5-20 6206 Riverside Perris Basin, San Jacinto Valley, field 0.5 km west of Sanderson Road, 3.2 km southwest of Gilman Hot Springs 446 Comment
  UCR2385  Eragrostis cilianensis F. M. Reed 1903-12-18 320 Riverside Riverside, Bluffs Ranch (Bluffs Ranch was located along Arroyo Tequesquite at Chicago Ave.) 293 Comment
  UCR93101  Eragrostis cilianensis F. M. Reed 1933-9-11 8065 Riverside Riverside 244 Comment
  UC494838  Eremalche exilis Philip A. Munz 1932-3-14 11992 Riverside Deep Canyon Coachella Valley, Deep Canyon 91 Comment
  RSA432716  Eremalche rotundifolia N. C. Cooper 1949-4-8 3292 Riverside Shaver s Summit east of Indio. 610 Comment
  UCR75055  Eremalche rotundifolia A. C. Sanders, E. J. Lawlor 1992-4-4 12094 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  RSA736530  Eremocarpus setiger Scott D. White, Angelia Carey 2004-7-2 10573 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. 549 Comment
  UCR245261  Eremothera boothii subsp. condensata Jim Andre 2012-3-19 21308 Riverside Sonoran (Colorado) Desert, north end of Orocopia Mountains, 0.5 mi. south of junction of Box Canyon Rd and I-10 Fwy, 23 miles east of city of Coachella 470 Comment
  RSA0060485  Eriastrum densifolium subsp. austromontanum J. M. Andre 2012-6-15 30534 Riverside Along Hwy 243, 10.7 mi. south of Interstate 10 (Banning); SB Natl. Forest. 1499 Comment
  RSA0104871  Eriastrum densifolium subsp. austromontanum D. L. Banks, S. D. Boyd 1995-10-17 0784 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along lower Arroyo Seco, S of the Dripping Springs Campground. Along the broad alluvial benches N of where Arroyo Seco turns to the E. 512 Comment
  UCR60934  Eriastrum densifolium subsp. densifolium Steve Boyd, T. S. Ross, L. Arnseth 1989-6-4 3651 A Riverside Butterfield Valley, Vail Lake area, Temecula Creek, SE of the lake, just north of Hwy 79 488 Comment
  UC23521  Eriastrum densifolium subsp. sanctorum H. M. Hall 1895-7-4 173 Riverside above Riverside; Santa Ana River, Spanishtown crossing Comment
  UCR243573  Eriastrum eremicum subsp. eremicum Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21104 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, upper watershed on east ridge, 1.1 mi south of radio tower, c. 6 mi. south of town center of Yucca Valley 1207 Comment
  RSA0120093  Eriastrum eremicum subsp. eremicum Ernest Braunton 1940-4-3 2022 Riverside Berdoo Canyon, 10 mi. E. of Indio. 304 Comment
  SEINET14591761  Eriastrum harwoodii N. H. Holmgren, P. K. Holmgren, R. E. Kern 1973-1 6473 Riverside Rice Valley, 3.5 miles SSW of Rice. 244 Comment
  SEINET4207491  Eriastrum harwoodii Duncan S. Bell 2010-4-2 682 Riverside Arica Mountains: west side of mountain range within the Palen/McCoy Wilderness; approximately 3 miles northwest of Priest Well; collecting along a sandy slope above the main western drainage for the Arica mountains.; 0 464 Comment
  UCR245660  Eriastrum harwoodii Duncan S. Bell 2010-4-2 686 Riverside Arica Mountains: west side of mountain range within the Palen/McCoy Wilderness; c. 2.5 air miles northwest of Priest Well; at the head of the main western drainage for the mountain range 559 Comment
  UC455473  Eriastrum sapphirinum I. J. Condit 1910-6-24 Riverside on lower slopes and in San Jacinto Canyon San Jacinto Mts. 914 Comment
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Nov 1 2007
  UCR116969  Eriastrum sapphirinum A. C. Sanders, T. B. Salvato 2001-5-3 24094 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  RSA0121560  Eriastrum sapphirinum subsp. dasyanthum Kathy Harper 1988-5-14 s.n. Riverside San Jacinto Mountains, along Hwy 243, 1-2 mi. below Mt. Edna turnoff. Comment
  RSA0121583  Eriastrum sapphirinum subsp. dasyanthum J. T. Howell 1928-7-9 1069 Riverside San Juan Canyon Road, Elsinore Mts. 793 Comment
  RSA0122961  Eriastrum sapphirinum subsp. sapphirinum C. W. Tilforth, W. Wisura 1979-8-8 1900 Riverside Garner Valley at Lake Hemet, Highway 74. 1326 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
  LA202470  Ericameria linearifolia K. Watkins; Elizabeth McClintock 1937-4-10 sn Riverside Palms to Pines highway near road to Shumay Comment
  RSA171381  Ericameria linearifolia J. D. Olmsted 1962-5-3 3508 Riverside San Jacinto Mts 1616 Comment
  UCR174948  Ericameria linearifolia Jennifer H. Jones, Toby Bartels 2006-4-23 274 Riverside Transverse Ranges; San Bernardino Mtns., Banning Pass, NE of Cabazon along powerline road and in Deep Canyon 744 Comment
  SD260179  Ericameria nauseosa Mitch Provance 2013-6-18 613 32 Riverside Santa Ana River Valley: Riverside, Arlanza area, W side of Hole Lake and adjacent mesa. 226 Comment
  UCR195803  Ericameria nauseosa var. mohavensis Jim Andre, T. La Doux 2007-9-6 8703 Riverside Little San Bernardino Mountains, Joshua Tree National Park, dirt road to Lost Horse Ranger Station, below Hemmingway Buttress 1237 Comment
  UCR120174  Ericameria palmeri var. pachylepis Mitch Provance 1998-3-6 140 Riverside Jurupa Mountains, Glen Avon Hts., Boulder Park, 0.7 km west of Pyrite St.on the north side of Granite Hill Dr. 305 Comment
  UC577114  Ericameria paniculata Lewis S. Rose 1934-12-25 34496 Riverside 10 mi n Whitewater (T Cross K Ranch, Mission Canyon); Mission Canyon Comment
  SD229092  Ericameria parishii var. parishii Dick Schwenkmeyer 2011-8-25 651 Riverside Thomas Mountain, Tool Box Springs Campground 1857 Comment
  SD144047  Ericameria pinifolia A. C. Sanders, T. Tennant 1997-11-14 21604 Riverside San Bernardino Mtns.: Morongo Indian Reservation, Hathaway Canyon. 854 Comment
  CAS-BOT-BC293300  Ericameria teretifolia Edmund C. Jaeger 1938-10-21 s.n. Riverside Joshua Tree Nat'l Monument, 12 miles south of Warren's Well 1280 Comment
  RSA747863  Erigeron divergens Justin M. Wood 2009-5-11 684 Riverside Morris Ranch Rd., roadside just E of Tripp Meadow. 1616 Comment
  RSA19448  Erigeron foliosus I. W. Clokey 1935-8-21 6961 Riverside E of Keen Post Office 1350 Comment
  RSA709453  Erigeron foliosus T. B. Salvato, John Green 2004-5-27 634 Riverside Head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1402 Comment
  POM357437  Erigeron foliosus var. foliosus Elbert Benjamine 1929-5-18 230 Riverside Mt. San Jacinto. Comment
  CLARK-A1528-4619  Eriochloa acuminata John C. Roos 1951-9-25 5294 Riverside Riverside 259 Comment
  SD129173  Eriochloa acuminata var. acuminata G. Helmkamp 1989-9-16 Riverside Hayfield on the W side of state hwy 78, 0.7 mi. N of Palo Verde. 74 Comment
  UCR111988  Eriochloa aristata A. C. Sanders, T. B. Salvato 2000-4-27 23375 Riverside Coachella Valley, east side of Coachella Canal near the foot of the Mecca Hills, vicinity of the east end of Ave 60 15 Comment
  CDA2092  Eriochloa contracta T. C. Fuller 1962-10-3 9702 Riverside Palo Verde Valley. Northwest corner of Neighbors Blvd. & Avenue 22, 1.4 miles north of Ripley. 0 Comment
  RSA33585  Eriodictyon crassifolium N. C. Cooper 1944-5-20 1309 Riverside Palms to Pines Highway [Hwy 74], San Jacinto Mountains. 1280 Comment
  UCR234245  Eriodictyon crassifolium A. C. Sanders, T. B. Salvato 2012-4-27 40091 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. east of I-15 crossing and mouth of Mayhew Cyn. 313 Comment
  UCR277736  Eriodictyon crassifolium Mitch Provance 2012-1-26 112- 08 Riverside Badlands of Western Riverside County, San Timoteo Canyon, El Casco area, powerline access road, 0.4 miles due S of El Casco Substation. 687 Comment
  CAS-BOT-BC189132  Eriodictyon crassifolium var. crassifolium Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater 304 Comment
  JEPS64  Eriodictyon trichocalyx M. Clary 1934-5-13 Riverside Santa Rosa Mountains 1524 Comment
  UC219595  Eriodictyon trichocalyx var. lanatum P. A. Munz 1922-6-25 5816 Riverside Santa Rosa; Santa Rosa Mts., Santa Rosa 1524 Comment
  RSA608184  Eriogonum R. S. Woglum 1939-4-11 2217 Riverside Sonoran Desert: Near Rice, Coxcomb Tunnel. Comment
  CAS-BOT-BC248631  Eriogonum apiculatum James L. Reveal; Caroline G. Reveal 1972-8-9 2860 Riverside San Jacinto Mountains, along California Highway 243, 4.2 miles north-northwest of Idyllwild, 8.7 miles north of the junction with Highway 74, and 1.2 miles south of Alandale Ranger Station Comment
  RSA0104493  Eriogonum apiculatum Duncan S. Bell 2015-9-30 8662 Riverside Santa Rosa Mountains; collecting in the summit area of Asbestos Mountain. 1573 Comment
  RSA6028  Eriogonum apiculatum Carl B. Wolf 1932-8-4 3913 Riverside San Jacinto Mountains: Point View near Idyllwild 1646 Comment
  POM146196  Eriogonum baileyi var. baileyi F. M. Reed 1927-10-22 5513 Riverside Big Morongo Valley, south of Mojave Desert [Riverside or San Bernardino County] Comment
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Jun 30 2012
  CAS-BOT-BC242790  Eriogonum davidsonii Winifern W. Swarth 1914-9-6 s.n. Riverside Strawberry Valley, San Jacinto Mts. 1828 Comment
  HSC80073  Eriogonum davidsonii Dave Goodward 1985-9-29 Riverside San Jacinto Mtns. edge of Soboba Burn, rim of Hall Canyon above UC James Reserve 1677 Comment
  POM209223  Eriogonum davidsonii S. G. Stokes 1933-7-1 106 Riverside Roadside talus near Idyllwild, San Jacinto Mountains. Comment
  UCR102435  Eriogonum davidsonii G. R. Ballmer 1991-6-22 s.n. Riverside San Jacinto Mtns., SE end of Garner Valley, on Pacific Crest Trail about 2-3 mi north of junction with Hwy 74; in vicinity of Bull Canyon Comment
  RSA0065543  Eriogonum davidsonii William Gilbert 1969-5-24 s.n. Riverside Pinon Flats Camp, Highway 74. Comment
  UCR133946  Eriogonum elongatum John F. Green 2003-8-15 s.n. Riverside Santa Ana Mtns., Santa Rosa Plateau, La Cresta area, south side of Wendy Lane off Calle De Suenos, south of Avenida La Cresta and Avenida Castilla 701 Comment
  POM98946  Eriogonum fasciculatum var. flavoviride E. C. Jaeger 1926-3-24 s.n. Riverside Cottonwood Springs, Eagle Mountains. Comment
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Oct 9 2010
  CAS-BOT-BC249951  Eriogonum fasciculatum var. foliolosum Elizabeth McClintock 1964-4-8 s.n. Riverside Snow Canyon, east side of Mt. San Jacinto Comment
  RSA739340  Eriogonum fasciculatum var. polifolium Keith E. Hoffmaster 1933-4-13 313 Riverside Palm Springs. Comment
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Aug 27 2011
  RSA766104  Eriogonum fasciculatum var. polifolium Marjorie D. Clary 1932-5-22 1027 Riverside Berdoo Canyon, Little San Bernardino Mts. 1159 Comment
  UCR100436  Eriogonum fasciculatum var. polifolium B. G. Pitzer 1997-4-20 3195 Riverside Lakeview Mtns, Pulsar View Road, c. 1/2 mi. up from the base of the hills (at end of Warren St.) c. 1 mi. (air) north of Juniper Flats (Contour) Rd. 549 Comment
  UC6312  Eriogonum gracile A. J. McClatchie May 1892 48 Riverside near Elsinore Comment
  UCR144100  Eriogonum gracile var. gracile Scott D. White 1999-5-28 7434 Riverside Peninsular Ranges/Perris-Aguanga Basin region/Gavilan Hills, Gavilan Hills, c. 3 air mi SE of junction of Cajalco Rd. and Gavilan Rd.; east of Juniper Rd. between Blue Sky Dr. and Celestial Dr 689 Comment
  UCR203961  Eriogonum gracile var. gracile Michael Wall 2008-10-6 494 Riverside Perris-Aguanga Basin, San Jacinto Valley, Bautista Road southeast of Hemet, Bautista Creek c. 6.0 mi southeast of Fairview Ave. 778 Comment
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Nov 18 2011
  RSA0103443  Eriogonum gracile var. incultum Duncan S. Bell, Josh Brito, John Woodruff 2015-7-15 8561 Riverside Garner Valley; west side of the highway, approximately 3.75 air miles southeast of Lake Hemet. 1370 Comment
  RSA679190  Eriogonum gracile var. incultum Michael Denslow, Firoozeh Navid-Ara, Valerie Soza 2003-7-16 1456 Riverside Santa Rosa Mountains, at junction of Road 7S02 and 74, just west of Rarick Spring 1479 Comment
  RSA700095  Eriogonum gracile var. incultum Virginia Moran 2003-9-1 s.n. Riverside Wilson Valley Mitigation Bank, managed by the Center for Natural Lands Management: Section 33 of two that comprise mitigation bank. (Section 27 and 33). Accessed from Wilson Valley Road. Comment
  RSA698434  Eriogonum inflatum J. R. Bruff 1927-10-8 1 -L Riverside Thousand Palms. Comment
  UCR99565  Eriogonum inflatum B. G. Pitzer 1996-11-9 2928 Riverside Sonoran (Colorado) Desert, Orocopia Mtns: Bob's Cabin, c. 4 road mi. north of Salt Creek Road (on SR211) & 4.5 air mi. south of the W end of Hayfield Lake. 610 Comment
  UCSB50287  Eriogonum inflatum Reisentz, Paul 1977-7-15 Riverside 7 miles NE of Mecca 60 Comment
  UCR244315  Eriogonum maculatum Jim Andre 2012-4-16 20890 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park; along Cottonwood Springs Rd., 1.0 mi. north of south entrance to J.T.N.P. 584 Comment
  CAS-BOT-BC270597  Eriogonum molestum James L. Reveal; C. Rose Broome 1987-6-27 6605 Riverside Along California Highway 243, 0.4 mile northwest of Lake Fulmor, about 13.8 miles northwest of Idyllwild, San Jacinto Mountains 1600 Comment
  CAS-BOT-BC270600  Eriogonum molestum James L. Reveal; Caroline G. Reveal 1972-8-9 2865 Riverside Along California Highway 243, 1.6 miles northwest of Alandale Ranger Station about 7 miles north of Idyllwild, near Fuller Mill Creek, San Jacinto Mountains Comment
  RSA393694  Eriogonum molestum N. C. Cooper 1944-7-15 1596 Riverside Palms to Pines Highway, San Jacinto Mountains. 1372 Comment
  SBBG64073  Eriogonum molestum R. Hoffmann 1929-9-7 Riverside Strawberry Valley 1645 Comment
  SD22472  Eriogonum molestum Susan G. Stokes 1933-7-1 Riverside Idyllwild to summit of Banning Grade 1584 Comment
  RSA423124  Eriogonum plumatella Anstruther Davidson 1893-4-12 s.n. Riverside Palm Springs. Comment
  JOTR29564  Eriogonum pusillum Andre, Jim, Tasha LaDoux 2006-4-11 6738 Riverside Joshua Tree National Park. Along Pinto Basin Rd (paved) in Wilson Canyon 857 Comment
  CAS-BOT-BC253018  Eriogonum reniforme K. L. Chambers 1973-3-19 3623 Riverside Cottonwood Pass Road at S. border of Joshua Tree Natl. Mon., 1.0 miles N of junction with Highway 60 Comment
  UCR243512  Eriogonum saxatile Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21083 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, up side canyon approx. 400 m. west of main canyon drainage 1172 Comment
  CAS-BOT-BC263531  Eriogonum thomasii S. B. Parish 1906-5-1 440 -6741 Riverside Colorado Desert at Palm Springs Comment
  SBBG28232  Eriogonum thomasii F. W. Peirson 1927-4-12 7171 Riverside Painted Cyn, near Mecca Comment
  POM47237  Eriogonum thurberi Mary F. Spencer 1920-3-28 s.n. Riverside Palm Springs. 122 Comment
  RSA424979  Eriogonum thurberi Anstruther Davidson 1892-04 s.n. Riverside Palm Springs. Comment
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Oct 3 2010
  JEPS56821  Eriogonum trichopes W. L. Jepson 1927-4-13 11690 Riverside ne Mecca (lower slopes of Painted Canyon); Colorado Desert, Painted Canyon 45 Comment
  SBBG65486  Eriogonum trichopes M. N. Ackley 1928-3-24 874 Riverside Palm Springs to Indio 60 Comment
  RSA65992  Eriogonum umbellatum subsp. munzii F. W. Peirson 1924-7-28 5014 Riverside Pine Flats Camp 1799 Comment
  RSA420610  Eriogonum wrightii var. membranaceum Julian P. Donahue 1984-10-6 90405 Riverside Pinyon Crest, Pinyon Flat, between San Jacinto and Santa Rosa Mts. 1250 Comment
  RSA420615  Eriogonum wrightii var. membranaceum Lester H. Cushman 1931-10 s.n. Riverside Mt. San Jacinto. 2134 Comment
  SBBG64303  Eriogonum wrightii var. wrightii R. Hoffmann 1929-9-7 Riverside San Jacinto Mtns 1645 Comment
  JOTR30286  Erioneuron pulchellum La Doux, Tasha, Bill Truesdell 2006-10-3 1781 Riverside Joshua Tree National Park. Pinto Basin: (Stop 2) east side of Hexie Mtns. at mouth of Pinkham Spring Canyon 694 Comment
  SEINET10854353  Eriophyllum ambiguum A. K. Evans 1976-4-13 Evans 5202 Riverside Desert canyons of Santa Rosa Mountains Comment
  SEINET8687228 Image available Eriophyllum ambiguum H. M. Hall 1905-4-14 5760 Riverside Near Palm Springs 150 Comment
  CDA33879  Eriophyllum confertiflorum Mike Lahti 2010-5-5 PDR# 1358682 Riverside East side of Hemet. 0 Comment
  SDSU20271  Eriophyllum confertiflorum Adrienne D. Russell, Tahirch Linz & Matt Guilliams 2000-4-29 123 Riverside Santa Margarita Ecological Reserve, Temecula, insect trail, mapping project for plant taxonomy class. Comment
  UCR21976  Eriophyllum confertiflorum Steve Boyd 1980-5-5 208 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  RSA757737  Eriophyllum confertiflorum var. confertiflorum LeRoy Gross, Jackie McConnaughy, Andrew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4310 Riverside Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W., Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  UC71969  Eriophyllum multicaule Miss M. A. King 1893-1 Riverside Menifee Comment
  RSA296853  Eriophyllum wallacei H. S. Yates 1937-3-23 6412 Riverside 3 miles N of Palm Springs 213 Comment
  RSA757630  Eriophyllum wallacei LeRoy Gross, Jackie McConnaughy, Andrew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4324 Riverside Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W., Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  UC1022811  Eriophyllum wallacei Philip A. Munz 1940-3-23 15720 Riverside 3 mi n Cottonwood Springs; Southern California, Eagle Mts. 914 Comment
  UCR177400  Eriophyllum wallacei Marisa Sripracha, K. A. Boyd 2004-3-22 071 Riverside San Jacinto Mtns. Foothills/Sonoran (Colorado) Desert, Snow Creek 366 Comment
  RSA576088  Erodium brachycarpum Christopher Davidson 1919-4-6 s.n. Riverside Gavilan Hills region, Estelle Mtn, near Summit. 823 Comment
  RSA654616  Erodium cicutarium Lydia Paneri 1982-4-17 45 Riverside Hillside north of Cajalco road, 2 miles east of I-15. Comment
  SD133077  Erodium cicutarium Scott White 1991-3-22 Riverside Los Alamos Road, ca. 2.0 miles west of I-215 exit. 366 Comment
  SD28019  Erodium cicutarium Carl B. Wolf 1932-4-27 3035 Riverside Mecca, 0.75 mile west of Utopia. 500 Comment
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Dec 11 2011
  UCR265564  Erodium cicutarium Angelique Herman, Keir Morse, Nick Regoli, Eric Lumba 2015-3-15 2015- 3 Riverside Santa Rosa/San Jacinto Mountains, Pinyon Flats Campground 1220 Comment
  UCR279594  Erodium cicutarium A. C. Sanders, Jim Malusa 2017-3-28 43161 Riverside Sonoran (Colorado) Desert, Northern edge of Chocolate Mountains, along Salt Creek at edge of Navy Aerial Gunnery Range, vicinity of Clemons Well site, between wash and old Kaiser RR 314 Comment
  UCR104620  Erodium macrophyllum D. E. Bramlet 1993-3-30 2305 Riverside South Cajalco Bend, c. 305 m south of Cajalco Road, at a location 3.2 km east of the intersection of Cajalco Road and Sierra Avenue. c. 1.5 m east of existing Monument Peak road. 463 Comment
  UCR37442  Erodium macrophyllum Steve Boyd 1981-4-15 s.n. Riverside Gavilan Hills area, south of Lake Matthews Comment
  RSA703302  Erodium texanum Valerie L. Soza 2003-3-15 s.n. Riverside Orocopia Mountains. Comment
  RSA5218  Erysimum capitatum var. capitatum C. B. Wolf 1932-8-4 3910 Riverside Near Point View, near Idyllwild. San Jacinto Mtns. 1646 Comment
  SBBG66754  Erythranthe cardinalis M. Lewis 1947-8-26 23 Riverside Dark Cyn 1981 Comment
  RSA0015889  Erythranthe moschata N. C. Cooper 1944-7-16 1564 Riverside San Jacinto Mountains, above Pine Cove. 2073 Comment
  UCR239863  Escallonia O. F. Clarke 2004-10-4 s.n. Riverside La Sierra area of Riverside, Kaiser Park Sierra Hospital, Magnolia Ave. at Park Sierra Dr. 220 Comment
  UC1551988  Eschscholzia californica Lyman Benson 1952-4-8 14850 Riverside 2 mi w Shaver Summit (e of Indio, US 66); Colorado Desert, Colorado River Drainage 609 Comment
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Mar 26 2011
  RSA69367  Eschscholzia californica var. peninsularis G. R. Campbell 1951-5-30 16140 Riverside just west of Cahuilla. 1067 Comment
  CAS-BOT-BC83135  Eschscholzia minutiflora G. B. Grant 6752 Riverside Palm Springs. Comment
  CSUSB1238  Eschscholzia minutiflora J. E. Parlevliet 1958-4-19 Riverside Along highway to Twenty-Nine Palms about 2 miles up this road from where it starts on highway Riverside-Indio, till first sign on right, "Kings Ranch." 304 Comment
  JOTR35067  Eschscholzia minutiflora La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3519 Riverside Joshua Tree National Park. Coxcomb Mountains: southwest corner of park, north of MWD Aqueduct Road. South-facing bajada with shallow Sonoran desert riparian corridors among desert pavement. Comment
  RSA795736  Eschscholzia minutiflora Jim Andre 2012-3-18 21287 Riverside Palen Valley; along Rice Road (Highway 177) east of Coxcomb Mountains, 9.6 miles south of Highway 62. 208 Comment
  SEINET10476369  Eschscholzia minutiflora David B. Dunn, Dhogo; Schroeder, (UMO); Bruskin; A. Folsom 1948-3-14 Dunn 3752 Riverside Found in wash above quad 6. Indio hills, colorado desert. Near pushawalla. Comment
  CAS-BOT-BC419616  Eschscholzia parishii Javier Penalosa 1963-4-11 2805 Riverside Pines to Palms Hwy. (#74) above Palm Desert 762 Comment
  CAS-BOT-BC419620  Eschscholzia parishii Ynez Whilton Winblad 1937-3-21 s.n. Riverside Box Canyon, Coachella Valley Comment
  RSA445442  Eschscholzia parishii E. C. Jaeger 1922-3-27 708 Riverside Colorado Desert. Box Canon, near Mecca. 91 Comment
  RSA0022917  Eschscholzia parishii Christopher Davidson 1973-4-1 1840 Riverside Along Hwy 74 on desert hillside facing Palm Desert. 488 Comment
  RSA0023137  Eschscholzia parishii Anstruther Davidson 1893-04 s.n. Riverside Palm Springs. Comment
  UC1608075  Eucalyptus camaldulensis A. C. Sanders 1985-12-19 5953 Riverside 3 mi. w. San Jacinto (s.e. corner of the intersection of Cottonwood Ave. & Warren Rd., at Cottonwood (Reflection) Lake); Cottonwood (Reflection) Lake 487 Comment
  OBI69833  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 34 Riverside Temescal Canyon Rd and I5 S, old plantation Comment
  RSA561814  Eucrypta chrysanthemifolia Steve Boyd 1992-4-14 6829 Riverside San Mateo Canyon Wilderness Area; Western flank of Bluewater Canyon along Bluewater Trail 341 Comment
  UC494394  Eucrypta chrysanthemifolia var. bipinnatifida C. L. Hitchcock 1932-4-7 12200 Riverside Corn Springs; e Riverside County Comment
  UCR280922  Eucrypta micrantha Fred M. Roberts 2016-3-5 7997 Riverside Sonoran (Colorado) Desert, Little Maria Mountains: shallow canyon at west end, 4.3 km east of Palen Pass and 2.0 km WNW Peak "602" 116 Comment
  SDSU14100  Eulobus californicus Jonathan S. Austin, Michael G. Simpson 2002-4-20 16 Riverside Near parking area off Tornado road adjacent to riparian area north of Santa Margarita river, Santa Margarita Ecological Reserve. 233 Comment
  UC20222  Eulobus californicus Geo. F. Reinhardt June 1897 Riverside San Jacinto Valley Comment
  CLARK-A1528-2489  Euonymus occidentalis subsp. parishii John C. Roos 1941-8-2 88 Riverside San Jacinto Mountains Comment
  LA204660  Euonymus occidentalis var. parishii Carl Epling; William Robison 1935-6-30 sn Riverside N fork, San Jacinto River Comment
  UCD170236  Euonymus occidentalis var. parishii K. M. Meyer; A. Townesmith 2007-3-16 19 Riverside San Bernardino National Forest. Fuller Mill Creek. 17.6 m S on Hwy 243 (off of I-10). 1572 Comment
  UCR116480  Euphorbia albomarginata A. C. Sanders, T. B. Salvato 2001-5-25 24378 Riverside San Jacinto Valley, west end of Hemet-Ryan airport runway, 50-200 m east of Warren Rd. and 100-200 m north of Stetson Ave. 457 Comment
  UCR199620  Euphorbia albomarginata Scott D. White, Angelia Carey 2004-7-2 10551 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Poppet Creek Canyon 610 Comment
  OBI14370  Euphorbia micromera Robert F. Hoover 1966-10-15 10154 Riverside Dead Indian Creek Wash, S of Palm Desert Comment
  UCR100572  Euphorbia nutans George K. Helmkamp 1997-11-1 2514 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 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
  SEINET2055683 Image available Euphorbia polycarpa Helen Kennedy, T. B. Salvato 2002-2-2 5448 Riverside Western Colorado Desert: Coachella Valley, Aqua Caliente Inidian Reservation, mouth of Andreas Canyon at Palm Canyon, S edge of Palm Springs between Andreas Cyn. Rd. and water tank on W edge of sec. 2. Along roadside 10 m from large water tank on construction road. 195 Comment
  UCR113225  Euphorbia polycarpa A. C. Sanders 1997-11-25 21623 Riverside Skinner/Domenigoni region, S of Hemet, Eastside Reservoir site, at N foot of eastern dam, E end of 'North Hills', c. 0.9 mi. NNE of site of Searl Ranch 530 Comment
  UCR124637  Euphorbia polycarpa B. C. Templeton, I. W. Clokey 1930-4-9 1013 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  UCR137038  Euphorbia polycarpa A. C. Sanders 2004-5-5 27777 Riverside Gavilan Hills, route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, c. 0.25 mi. NNW of Harford Spring, c. 1.2 mi. NE of Gavilan Peak 579 Comment
  UCD142855  Euphorbia setiloba Geoffrey Levin 1976-10-17 1168 Riverside Box Canyon, about 11 miles east of Mecca. Mecca Hills Mountain Range. 91 Comment
  RSA515307  Euphorbia spathulata Jeri Hirshberg 1989-4-11 s.n Riverside Santa Rosa Plateau, S of town of Murrieta, Cole Canyon, NW of Mesa de Burro, at head of canyon. 609 Comment
  SBBG119060  Euthamia occidentalis S. D. White with A. Carey 2004-9-16 10758 Riverside Indian Crk watershed, above confluence with San Jacinto River; T1E R5S S2, NE 1/4 579 Comment
  POM258736  Fagonia laevis Roxana S. Ferris 1939-3-29 9708 Riverside between Hayfields Reservoir and Desert Center. Indio-Blythe Highway. Comment
  RSA0112089  Fagonia laevis Duncan S. Bell 2010-2-21 548 Riverside Arica Mountains; Palen/McCoy Wilderness area; collecting in the central part of range. 418 Comment
  RSA0125287  Fagonia laevis Duncan S. Bell 2016-3-4 8792 Riverside Orocopia Mountains; northwestern corner of range; collecting in the Orocopia Mountains Wilderness area in an unnamed canyon approximately 3.75 air miles northwest of the summit of the range. 738 Comment
  RSA600124  Fagonia laevis Louis C. Wheeler 1959-12-27 7645 Riverside Chuckwalla Mountains. White Cloud Mine. Comment
  SBBG67802  Fagonia laevis L. Rowntree 1930-5-8 Riverside near Palm Springs Comment
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Aug 27 2011
  UC1287006  Fagonia laevis C. L. Hitchcock 1966-3-16 24209 Riverside 4 mi s Palm Desert (along Palms to Pines Highway) 609 Comment
  UCR166534  Fagonia laevis Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10896 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  UCSB74335  Fagonia laevis White, Scott; Jones, Jennifer; Huelsman, James 2005-4-14 Riverside Sonoran Desert: Eastern Coachella Valley. Bajada beneath Mecca Hills , just east of Coachella Canal. (Thermal Canyon: 33° 39'N, 116° 05'W; T6S R9E S18, and adj.) 49 Comment
  RSA0009993  Fagonia laevis Marcus E. Jones 1924-2-26 s.n. Riverside Shaver's Well. Comment
  RSA605769  Fagonia pachyacantha A. C. Sanders 1995-5-23 17126 Riverside Colorado Desert, Coachella Valley: alluvial fans below the Santa Rosa Mtns, near the mouth of Martinez Cyn., at end of 72nd Ave. 25 Comment
  UCR200289  Fagonia pachyacantha Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11237 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains, western base of the Chocolate Mountains, small canyon c. 1.25 mi due north of Imperial Co. line and c. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range 549 Comment
  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
  UCR99208  Fatoua villosa Steve Morgan 1990-11-30 s.n. Riverside Riverside, UCR Botanical Garden 366 Comment
  UCR113941  Festuca arundinacea Mitch Provance 2000-6-24 2065 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  UCR250107  Festuca microstachys A. C. Sanders 2014-4-9 41008 Riverside Peninsular Range, Temescal Canyon, along Temescal Canyon Rd. c. 0.2 km NW of intersection with Indian Truck Trail 354 Comment
  UCR68867  Festuca microstachys Steve Boyd, T. S. Ross 1990-5-11 4700 Riverside Vail Lake area, Cleveland National Forest, N flank and summit of Wild Horse Peak, Agua Tibia Mtns 999 Comment
  LA99030  Festuca myuros Walt Westman; A. Davis 1979-3-29 79 52 Riverside E Buttle of Double Butte, beyond E of Cortrite Ave, Homeland 548 Comment
  OBI53610  Festuca myuros Steve Myers 1988-1 s.n. Riverside Temescal Cyn, ca 1/4 mi W of intersection of hwy I-15 and Indian Truck Trl Comment
  UCR162272  Festuca myuros S. J. Myers, John Green 2003-4-4 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1220 Comment
  UCR93058  Festuca myuros Steve Boyd 1986-4-2 1626 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  RSA0120622  Festuca octoflora Duncan S. Bell, Thomas Stoughton 2016-3-15 8933 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; in the central part of the range, approximately 0.75 air mile east northeast from the summit of the range. 861 Comment
  RSA339655  Filago californica R. F. Thorne, C. W. Tilforth 1980-5-28 54229 Riverside Along Whitewater River, ca. 3.2 miles N of Whitewater Post Office and Hwy 10. Comment
  RSA628477  Filago californica A. C. Sanders 1994-5-30 14613 Riverside Foothills NNE of Beaumont. 950 Comment
  UCR128562  Filago californica A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23907 Riverside Perris-Aguanga Basin region, Tucalota Creek along gasline right-of-way, SE of French Valley Airport, off Borel Rd. in NE Murrieta 396 Comment
  UCR25779  Filago californica John C. Roos 1952-4-13 5528 Riverside Peninsular Range, Box Springs Mountains 520 Comment
  UCR99160  Filago californica A. C. Sanders, G. Helmkamp 1997-3-15 19992 Riverside Peninsular Range, Lake Skinner, SE foot of Bachelor Mtn., just north of the lake 600 Comment
  UCR48364  Filago gallica Steve Boyd 1986-5-1 1809 Riverside Perris-Aguanga Basin region, southwestern Perris Basin, hill west of Skunk Hollow, Skunk Hollow vernal pool 488 Comment
  JEPS42931  Forestiera pubescens C. B. Clokey, I. W. Clokey, and B. Templeton 1930-4-15 4622 Riverside Gavilan Peak 550 Comment
  RSA697315  Fouquieria splendens Keith E. Hoffmaster 1937-6-6 s.n. Riverside Desert grade of Palms to Pines Highway. Comment
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Dec 18 2011
  SBBG69367  Fouquieria splendens M. N. Ackley -Feb-1926 359 Riverside Box Cyn 304 Comment
  SEINET7907909  Fouquieria splendens D. A. Johnson 2005-1 Riverside Between Coachella and S entrance to Joshua Tree Nat'l Park, S of Interstate 10 914 Comment
  RSA0018946  Fragaria vesca Philip A. Munz 1922-6-27 5855 Riverside Santa Rosa, Santa Rosa Mts. 1982 Comment
  CLARK-A1528-3991  Fragaria vesca subsp. californica John C. Roos 1947-5-24 3638 Riverside San Jacinto Mountains Comment
  RSA658684  Fragaria vesca subsp. californica Bob Rogers 1984-5-5 30 Riverside Along a trail bordering the west side of Fuller Mill Creek heading upstream. Starting point was on the North side of Hwy 243, 11.6 miles from hwy 74/hwy 243 jctn. 1524 Comment
  RSA160521  Fraxinus dipetala J. D. Olmsted 1959-4-23 468 Riverside Spring Trail at Beacon Pines Ranch, 9 miles SW of Corona; Santa Ana Mts. Drainage area: Santa Ana river. 793 Comment
  UC55739  Fraxinus velutina H. M. Hall 1898-6-28 959 Riverside e of Kenworthy (s side of San Jacinto Mts.); San Jacinto Mts. Comment
  SD227724  Funastrum heterophyllum A. C. Sanders, K. C. Rose 1999-5-28 22790 Riverside Coachella Valley: betweeen La Quinta and Indio, along Jefferson St. between Ave 54 and I-10. Disturbed roadside at intersection with Ave. 49 11 Comment
  JOTR37432  Funastrum hirtellum Hodges, Stephen R., T. Hender 2015-12-29 554 Riverside Joshua Tree National Park. Eagle Mountains, mid way up Dragon Wash, (Stop 2) Comment
  RSA25130  Funastrum hirtellum C. L. Hitchcock 1940-3-31 5886 Riverside Between Cottonwood Spring and Pinto Basin. Comment
  UCD121572  Galium angustifolium K. Esau 1935-6-20 s.n. Riverside Beaumont Grade. Comment
  JEPS56034  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and Clare Hardham 1965-6-18 4135 Riverside on Route R1 s Idyllwild; Keenwild Station Comment
  RSA741580  Galium angustifolium subsp. angustifolium Scott D. White, Justin M. Wood 2008-6-17 12175 Riverside Garner Valley- Kenworthy Station (USFS) 1378 Comment
  UC2030131  Galium angustifolium subsp. jacinticum Robert F. Thorne, J. P. Simon, and C. W. Tilforth 1969-6-24 38134 Riverside SAN JACINTO MOUNTAINS: San Bernardino National Forest. Hilltop above Lake Fulmor. Comment
  RSA706289  Galium californicum subsp. primum Naomi S. Fraga, Sarah J. De Groot, Valerie Soza 2004-6-28 1280 -b Riverside Along Red Hill Road (5S10) near Alvin Meadows, southwest of Pine Cove. 1616 Comment
  UC64377  Galium porrigens H. M. Hall 1897-6-16 645 Riverside w side San Jacinto Mountains (Junction <from notebooks, according to L. T. Dempster>) Comment
  LA208440  Galium stellatum var. eremicum L. Haines; L. Erickson 1937-4-10 Riverside Palms to Pines Highway 2 mi above valley Comment
  RSA0041955  Galium stellatum var. eremicum Duncan S. Bell, Marcel Beffort 2014-4-22 6600 Riverside Chuckwalla Mountains; western end of Corn Springs wash/canyon; approximately 0.75 air mile southwest of Aztec Well. 671 Comment
  RSA234079  Garrya veatchii Robert F. Thorne, E. Lathrop 1969-6-6 39331 Riverside Santa Rosa Plateau: Rancho California. 610 Comment
  UCSB45571  Gastridium phleoides Roos, John 1939-5-27 Riverside Reche Canyon Comment
  CLARK-A1528-4674  Gastridium ventricosum John C. Roos 1965-6-30 Riverside Santa Ana Mountains Comment
  POM305627  Geraea canescens Henry J. Ramsey, Henry J. Ramsey 1937-3-2 872 Riverside Desert center, Mojave Desert Comment
  UCR261443  Gilia A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41431 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms 439 Comment
  SD119885  Gilia achilleifolia Louis B. Ziegler 1972-6-5 474 Riverside San Jacinito Mountains. In a Canyon at the lower end of Poppet Flats. In full sun and semi shade. 1067 Comment
  SD232284  Gilia angelensis Michael Wall 2003-4-15 264 Riverside Peninsular Ranges; San Jacinto Mountains region: Lamb Canyon west of Beaumont off Hwy. 79, 5.2 mi. south jct. with 10 Fwy up dirt road at turnout along west side of Hwy. 33. 601 Comment
  SDSU12911  Gilia angelensis Jutta Buschbom 1991-6-3 44 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
  UCR103176  Gilia angelensis Scott D. White, Julie Greene 1997-3-12 4771 Riverside Pedley area, S foot of Jurupa Hills: Just north of State Route (Fwy) 60 at Pedley exit. 305 Comment
  UCR172804  Gilia angelensis Abby Sirulnik 2000-4-13 09 Riverside Peninsular Ranges, Southwestern Riverside County Multispecies Reserve, c. 3 mi NE of Skinner Reservoir 610 Comment
  UCR183340  Gilia angelensis Mitch Provance 2005-5-27 4602 Riverside San Bernardino Valley, Riverside, Sycamore Canyon, just east of the corner of Canyon Crest Drive and Via Vista 381 Comment
  UCR234260  Gilia angelensis A. C. Sanders 2012-4-12 40033 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. between El Hermano Rd. and I-15 crossing near Mayhew Canyon 311 Comment
  UCR84874  Gilia angelensis A. C. Sanders, K. C. Rose, D. Woodard 1995-3-15 16128 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, along Whitewater River wash between Windy Point and Hwy I-10, Coachella Valley 396 Comment
  UCR20565  Gilia australis N. R. Zabriskie 1978-3-16 780 Riverside San Jacinto Mountains, S side of stream near intake, Andreas Canyon, E slope of mountains 610 Comment
  SD197858  Gilia capitata subsp. abrotanifolia Peter L. Morrell, D. L. Banks 1995-5-4 461 Riverside Agua Tibia Wilderness Area, 2.4 miles (air) westsouthwest of Radec. 622 Comment
  UCR202332  Gilia capitata subsp. abrotanifolia Peter L. Morrell 1993-5-1 226 Riverside San Bernardino Mtns., c. 300 m west of Whitewater Canyon Rd. along stream bed (upstream), 3.3 miles north of I-10 627 Comment
  RSA171388  Gilia diegensis J. D. Olmsted 1962-5-3 3488 Riverside Edge of Thomas Mountain fire road south of Hemet Lake, NE flank of Thomas Mountain. 1418 Comment
  UC1138214  Gilia maculata H. Lewis 1952-4-5 Riverside Aqueduct Road 5.2 mi s Garnet; s of Garnet Comment
  SD129478  Gilia ochroleuca Ed LaRue 1989-6-11 Riverside West side of Lakeview Mountains, ca. 1.0 mile southeast of town of Nuevo. 640 Comment
  RSA0016299  Gilia ochroleuca subsp. exilis P. A. Munz 1922-4-28 5025 Riverside Temescal Canyon. Comment
  UCR108993  Gilia ochroleuca subsp. exilis D. L. Banks, V. W. Steinmann 1997-3-13 1502 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
  RSA332592  Gilia scopulorum George K. Helmkamp 1983-3-24 383 -16 Riverside Little Chuckwalla Mtns, north base, 1.5 mi east of Graham Pass Rd. 335 Comment
  JOTR30237  Gilia sinuata Leary, C. and Leary, Pat 1979-5-5 3000 Riverside Joshua Tree National Park. Above Lower Covington Flat, Joshua Tree N.M., T2S R7E sec 6. Comment
  UCR245889  Gilia stellata R. F. Thorne 1995-3-29 63022 Riverside Transverse Range; San Bernardino Mtns., Whitewater Canyon 600 Comment
  RSA0033918  Glycyrrhiza lepidota John F. Emmel 1997-5-3 1467 Riverside Along Warm Springs Creek, ca. 1 air mile southwest of Murrieta Hot Springs (1.7 air miles west & 0.1 air mile south of junction Murrieta Hot Springs Road & Hwy. 79). 326 Comment
  UCR3183  Gnaphalium californicum Chuck Elliott 1964-5-7 s.n. Riverside Riverside, 1 mi past end of Canyon Crest Road west. 305 Comment
  UCR90599  Gnaphalium californicum Scott D. White 1995-6-29 3380 Riverside Santa Ana Mtns., Murrieta Creek, NW of Murrieta, upstream from Cole Creek confluence, at Calle de Oso Oro Rd. crossing 351 Comment
  UCR37484  Gnaphalium canescens subsp. microcephalum Steve Boyd 1981-1-9 s.n. Riverside Peninsular Range, Gavilan Hills, narrows in central Dawson Cyn. 488 Comment
  RSA160475  Gnaphalium luteoalbum J. D. Olmsted 1959-4-17 405 Riverside Main Knobcone pine grove around edges, NE ridge from Sugarloaf Peak, along Main Divide TT 1/2 mile E of turn off the Radar Station, Santa Ana Mtns 1159 Comment
  CAS-BOT-BC307397  Gnaphalium palustre F. W. Peirson 1930-5-10 8769 Riverside Hemet Plateau, near March Field road from Riverside to Perris 457 Comment
  RSA524440  Guillenia lasiophylla Steve Boyd, L. Arnseth, J. Bonilla, Tim Ross 1990-4-3 4056 Riverside Vail Lake area, summit of 'Big' Oak Mountain at E end. 793 Comment
  UC56733  Guillenia lasiophylla H. M. Hall 1902-4-7 2759 Riverside vicinity Winchester 457 Comment
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Mar 20 2011
  UCSB24494  Gutierrezia sarothrae McMinn, Howard 1935-6-23 Riverside About 1/2 mile south of Elsinore Comment
  UCR18660  Haplopappus squarrosus John C. Roos 1952-8-27 5890 Riverside Reche Canyon, Haas Ranch 457 Comment
  UCR144412  Harpagonella palmeri Scott D. White 2001-4-19 8381 Riverside Perris-Aguanga Basin, Perris / Sun City area. Just east of Goetz Road and south of Ethanac Road, c. 1.5 - 2.0 mi west of Interstate 215 473 Comment
  UCR91476  Harpagonella palmeri Scott D. White, M. Jacobsmeyer 1996-4-20 3947 Riverside Bundy Canyon Road, west of Menifee. c. 4-5 mi west of Interstate Hwy-215 freeway. north of road. 549 Comment
  RSA0066624  Harpagonella palmeri Steve Boyd 1986-4-10 1644 Riverside Temescal Canyon: Along DePalma Rd between Indian Truck Trail and Horsethief Canyon. 1 mi. E of Indian Truck Trail. Comment
  RSA653158  Hazardia squarrosa Mitch Provance 1998-6-6 697 Riverside Jurupa Mountains: Jensen Quarry, Sunnyside area on W side of Sierra Blvd, just E of corner of 29th St. and Scenic Drive 305 Comment
  SBBG94677  Hazardia squarrosa S. D. White 1990-9-25 Riverside Santa Rosa Plateau, ca. 5 air mi SW of Temecula, on Via Yerba Rd, E of Vaquero Rd 396 Comment
  UCR225448  Hedypnois cretica A. C. Sanders 2011-3-29 38836 Riverside Peninsular Range; Edge of Gavilan Hills, Meadowbrook area, between Perris and Lake Elsinore, along Hwy 74 near Crumpton Rd. 495 Comment
  UCR48417  Helianthemum scoparium var. aldersonii Steve Boyd 1986-4-22 1745 Riverside Temescal Canyon, stable alluvial benches of Indian Wash just south of Interstate Hwy 15 Comment
  RSA291591  Helianthemum scoparium var. vulgare C. W. Tilforth, W. Wisura 1979-11-4 1765 Riverside East end of Murrieta-DeLuz Rd., ca. 2 air mi. south of Murrieta 335 Comment
  RSA0036781  Helianthus annuus Andrew Haimov, April Sleigh 1992-5-19 86 Riverside 1.5 miles east of Davis Road, south of pond#2, San Jacinto Wildlife Area. Comment
  UCR19792  Helianthus californicus W. W. Mayhew 1977-10-3 s.n. Riverside San Jacinto Mtns., Hwy 243 at Fuller Mill Creek 1585 Comment
  CAS-BOT-BC305711  Helianthus gracilentus Mrs. J. D. Abrams 1901-5-20 s.n. Riverside Elsinore Comment
  RSA152146  Helianthus gracilentus Wesley O. Griesel 1962-6-29 s.n. Riverside Road between Banning & Idyllwild. 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
  POM91002  Helianthus niveus subsp. canescens E. C. Jaeger 1925-12-10 s.n. Riverside White Water River wash north of Palm Springs. Comment
  UC666387  Heliotropium convolvulaceum var. californicum Annie M. Alexander and Louise Kellogg 1941-5-28 2259 Riverside 6 mi. e. Blythe; Colorado Desert 121 Comment
  UCR128254  Heliotropium curassavicum A. C. Sanders, Kelly Volansky 2003-10-16 27344 Riverside Moreno Valley, lower Pigeon Pass Valley, NE corner of intersection of Old Lake Dr. and Pigeon Pass Rd. 534 Comment
  UCR174961  Heliotropium curassavicum Teresa Nieto 2005-5-26 52 Riverside Peninsular Range, Wildomar, Menifee Hills, south of Bundy Canyon Rd. c. 1 mile from Harvest Way East, north of Felswood Rd. 579 Comment
  RSA653072  Hemizonia fasciculata A. C. Sanders 1997-5-1 20625 Riverside Along horse trail in southern part of Lake Skinner Park, west of Tucalota Hills and east of Warren Rd. 488 Comment
  RSA656546  Hemizonia fasciculata A. C. Sanders 2000-5-25 23412 Riverside Menifee Valley; S of Newport Rd., N of Holland Rd. and E of Bradley Rd., 2 miles due east of Railroad Canyon Lake 439 Comment
  UCR133665  Hemizonia fasciculata Chet McGaugh 2003-5-10 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  RSA553902  Hemizonia kelloggii G. R. Ballmer 1992-6-23 92 -8 Riverside San Timoteo Canyon Rd., 0.8 mi E of jct with Redlands Blvd. Comment
  UCR117087  Hemizonia kelloggii A. C. Sanders, T. B. Salvato 2001-5-16 24299 Riverside Perris-Aguanga Basin, S of Hemet, 1/4 mi. south of Gibbel Rd. about 1 mile east of State St., foothills forming east end of Diamond Valley, 1 mi. SSE of Hemet Butte, south of mouth of Avery Cyn. 518 Comment
  UCR132826  Hemizonia mohavensis A. C. Sanders, Steve Boyd, Jeff Ross, , Mitch Provance 1998-10-25 22276 Riverside San Jacinto Mtns., Herkey Creek, Garner Valley along Hwy 74 near Lake Hemet Campground, north side of road 1329 Comment
  RSA192193  Hemizonia paniculata E. W. Lathrop 1960-5-20 4806 Riverside 14 miles west of Murrieta. Comment
  UCR274145  Hemizonia paniculata T. B. Salvato, Gregg Miller 2005-6-7 1429 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
  UCR126990  Hemizonia pungens subsp. laevis A. C. Sanders, Guy Bruyea 2003-6-12 26891 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
  UCR162935  Hemizonia pungens subsp. laevis Fred M. Roberts, D. E. Bramlet 2005-4-1 6146 Riverside Upper Salt Creek, W of Hemet, parcel between Devonshire and Florida, c. 0.2km N of Florida and 0.2km W San Diego Aquaduct; c. 2km NW Ryn Field 457 Comment
  UCR166800  Hemizonia pungens subsp. laevis R. E. Riefner Jr. 2004-8-27 04- 397 Riverside N of La Sierra Heights; NE (c. 1 mi) off Arlington Avenue, along dirt access road to Hidden Valley Wildlife Reserve 207 Comment
  UCR189808  Hemizonia pungens subsp. laevis Theresa Johnson 2006-6-1 142 Riverside Peninsular Range, San Jacinto Wildlife Area. South of main entrance road to San Jacinto Wildlife Area. Located parallel to dirt road c. 500 m west of Davis Road along dry alkali flats 433 Comment
  UCR90403  Hesperocnide tenella D. L. Banks, Steve Boyd 1995-5-9 0421 Riverside NW Palomar Mtns, Cleveland National Forest, Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., the Dorland Mtn area, west of the Dripping Springs Alcove, west of Woodchuck Campground. 701 Comment
  SEINET3412083  Hesperoyucca whipplei var. whipplei Wendy C. Hodgson, Andrew Salywon, Liz Slauson, Brandi Eide 2013-6-14 28528 Riverside Santa Rosa Mountains, off of highway 74 south of Palm Desert, off of Pine View Drive. 1297 Comment
  RSA586871  Heterocodon rariflorum D. L. Banks, S. D. Boyd 1995-5-3 0290 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
  UCR94486  Heterocodon rariflorum Steve Boyd 1995-5-13 8511 Riverside Santa Ana Mtns, W of 'Onion Hill', SE of Elsinore Peak Area along trail following old Main Divide Road grade. 1006 Comment
  UCR132420  Heteromeles arbutifolia A. C. Sanders 2004-2-6 27383 Riverside Santa Ana Mtns., foothills at edge of Temescal Valley, canyon along north side of ridge proposed for removal at development called 'Trilogy at Glen Ivy,' south of Brown Canyon 442 Comment
  RSA1640436A  Heterotheca sessiliflora subsp. fastigiata J. D. Olmsted 1959-8-18 801 Riverside May Valley Truck trail at crest W of S ridge of Tahquitz Peak, SE of Desert Sun School, Idyllwild, alt 5800ft. San Jacinto Mts, 1768 Comment
  UCR2457  Hilaria rigida F. M. Reed 1931-4-11 6941 Riverside Sonoran (Colorado) Desert, Chuckwalla Mesa, 'eastern Mohave Desert', near Fullers Well [=Chuckwalla Well?] 598 Comment
  JEPS15378  Hoffmannseggia glauca Joseph and Hilda Grinnell 1937-11-30 1087 a Riverside 24 mi w of Blythe; Ford Dry Lake 106 Comment
  RSA405282  Hoffmannseggia glauca J. S. Stubblefield 1934-9-12 s.n Riverside Between Desert Center & Blythe. 106 Comment
  SEINET5554570  Hoffmannseggia glauca J. C. Roos 1965-1 s.n. Riverside 17 mi W of Blythe Colorado Desert Comment
  SD27950  Hoffmannseggia microphylla Carl B. Wolf 1932-4-26 2978 Riverside Colorado Desert, 5 miles east of Mecca, on Blythe Road, open sandy flat 29 Comment
  SEINET953934  Hoffmannseggia microphylla T. R. Van Devender, R. K. Van Devender 1986-1 86 -207 Riverside Cactus City Rest Area, Interstate Highway 10, about 23 miles east of Indio. Comment
  RSA597947  Holcus lanatus F. M. Reed 1907-6-23 1434 Riverside Old abandoned field in Santa Ana River bottom above West Riverside Bridge. 244 Comment
  UCR217500  Holocarpha virgata subsp. elongata Karyn L. Drennen 2009-6-19 1 Riverside Santa Ana Mtns- foothills, Santa Rosa Plateau, north of Monument Hill Rd 586 Comment
  UCR273492  Holocarpha virgata subsp. elongata A. C. Sanders, Glen Morrison 2016-8-4 42612 Riverside Peninsular Range; Santa Ana Mountains, Santa Rosa Plateau, Redonda Mesa, near radio/cellphone tower & prominent abandoned microwave tower 855 Comment
  UCR159908  Holodiscus discolor Orlando Mistretta 1992-7-16 725 Riverside Peninsular Ranges: Santa Ana Mountains, Santa Ana Mountains: Sierra Peak Comment
  UCR114962  Hordeum intercedens Fred M. Roberts 1992-4-25 4876 Riverside San Jacinto Valley, Upper Salt Creek Watershed adjacent to Hemet, NW corner of California Avenue and Stowe Road, 3.3km ENE Winchester 455 Comment
  UCR191542  Hordeum intercedens A. C. Sanders 2008-4-15 34889 Riverside Peninsular Range, NE edge of city of Elsinore, off Nichols Rd. along Baker St., near Durant Siding 391 Comment
  SEINET271519 Image available Hordeum marinum subsp. gussoneanum A. C. Sanders, K. D. Jones; D. Malueg 1996-4-20 18061 Riverside San Jacinto River between Nuevo and Lakeview from 11th to 13th Streets alkaline flats along the east side of the river 433 Comment
  RSA198984  Hordeum marinum subsp. gussoneanum R. F. Thorne, P. A. Munz, E. Lathrop 1968-5-8 37581 Riverside Santa Rosa Plateau: on Mesa de Colorado, Rancho California 671 Comment
  UCR107839  Hordeum murinum Scott D. White, M. Jacobsmeyer 1996-4-20 3971 Riverside Perris Basin, near Perris Airport; c. 100 m south of Case Road and 100 m west of the San Jacinto River Channel 433 Comment
  UCR91887  Hordeum murinum A. C. Sanders, K. D. Jones, D. Malueg 1996-4-20 18043 Riverside San Jacinto Valley, San Jacinto River between Nuevo and Lakeview, from 11th to 13th Streets, E side of the river channel 433 Comment
  POM33520  Hordeum murinum subsp. glaucum N. C. Cooper 1944-5-6 1172 Riverside Banning. 701 Comment
  JEPS68630  Horsfordia alata Mrs. Ben L. Clary before Apr. 1930 Riverside Coachella Valley Colorado Desert Comment
  CAS-BOT-BC201091  Hosackia crassifolia Mrs. E. C. Van Dyke 1928-7-22 s.n. Riverside Idyllwild Comment
  CLARK-A1528-1951  Hulsea vestita John C. Roos 1965-6-13 Riverside San Jacinto Mountains Comment
  RSA720440  Hulsea vestita subsp. callicarpha Naomi Fraga, Valentin Arvizu, Elizabeth Kempton, Tim Thibault 2006-6-7 1702 Riverside Along 4-W drive trail east of Morris Ranch road and west of McGregor Flat. 1616 Comment
  SDSU1684  Hulsea vestita subsp. callicarpha D. F. Howe 1941-6-8 1281 Riverside San Jacinto Mts. 1524 Comment
  UCR253359  Hulsea vestita subsp. callicarpha Ana Hernandez, John Dvorak 2011-8-4 028 Riverside San Jacinto Mountains, west of Forest Route 4S02.3 (Azalea Trail), 0.5 km south of Dark Canyon Campground 1746 Comment
  UCR132708  Hydrocotyle ranunculoides A. C. Sanders, O. F. Clarke 1991-6-10 11120 Riverside Upper Santa Ana River/San Bernardino Valley, Riverside, along Spring Brook between Lake Evans (Fairmont Park) & the Santa Ana River 238 Comment
  POM361078  Hymenoclea salsola F. R. Fosberg 1932-3-13 8090 Riverside Thousand Palms Canyon. Coachella Valley. Comment
  UCR123760  Hymenoclea salsola var. pentalepis Steven R. Hill 2001-4-29 33548 Riverside Western Colorado Desert/ San Bernardino Mtns., E side of Whitewater Canyon along Whitewater River, east of Whitewater Canyon Road, about 2 mi north of Route I-10 549 Comment
  UCR92180  Hypochaeris glabra D. L. Banks, Steve Boyd 1995-5-3 0190 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
  CAS-BOT-BC219737  Hyptis emoryi Carl B. Wolf 1932-4-26 2984 Riverside Colorado Desert. 8 mi. E. of Mecca, on Blythe Road 91 Comment
  HSC66636  Hyptis emoryi Josephine Jones, Christopher Davidson 1980-4-4 9959 Riverside W end of Orocopia Mtns. S of Oro Peak. Comment
  POM306694  Hyptis emoryi Henry J. Ramsey, Henry J. Ramsey 1926-4-26 1688 Riverside Near Desert Center. Comment
  RSA420185  Hyptis emoryi Bonnie C. Templeton 1930-3-22 1642 Riverside Palm Springs. 400 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
  UCR281906  Hyptis emoryi A. C. Sanders, Jim Malusa 2017-9-21 43357 Riverside Sonoran (Colorado) Desert, northern boundary of Chocolate Mountains Aerial Gunnery Range along south side of Bradshaw Trail at large wash crossing 680 Comment
  POM9331  Hyptis emoryi Mary F. Spencer 1918-4-5 832 Riverside [Palm?] Canyon. Comment
  SEINET13948486 Image available Hyptis emoryi Rateaver 1944-1 51 Riverside Tahquitz Creek near Palm Springs Comment
  CLARK-A1528-4694  Imperata brevifolia John C. Roos 1949-9-17 4656 Riverside Whitewater Comment
  SD126162  Ipomoea triloba A. C. Sanders 1988-11-6 8737 Riverside Coachella Valley, west side of Highway 86, 6.25 miles south of its junctiln with Highway 111 in Coachella. -35 Comment
  UCD126496  Ipomoea triloba T. C. Fuller 1962-10-2 9691 Riverside south of Ave. 60, 0.2 mile east of Jackson St., around 6 miles south of Indio. Comment
  UCR60763  Isoetes orcuttii R. F. Thorne 1973-5-23 43853 Riverside Santa Rosa Plateau, north side of Mesa de Colorado 610 Comment
  RSA559314  Isolepis cernua Steve Boyd, Timothy S. Ross, David E. Bramlet 1993-5-13 7374 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Wildhorse Canyon, from confluence with Los Alamos Canyon upstream approx. 1 mile. 412 Comment
  UC1463089  Isomeris arborea Arthur S. Barclay and Juan Arguelles 1965-3-4 1797 Riverside 4 mi n State Highway 79 junction with State Highway 71 (along State Highway 79) Comment
  UCD133365  Iva axillaris R. N. Raynor 1938-6-20 s.n. Riverside Coahuila. Comment
  RSA0011072  Juglans californica A. C. Sanders, O. F. Clarke 1991-6-10 11128 Riverside Upper Santa Ana River/San Bernardino Valley: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River. 238 Comment
  UC1495732  Juncus bryoides B. Ertter and J. Strachan 1979-6-26 2972 Riverside on Hwy. 74 in Garner Valley Kenworthy Forest Station; San Jacinto Mts., Garner Valley, Kenworthy Forest Station Comment
  CDA32302  Juncus bufonius D. Domenigoni 2000-3-28 PDR 1243980 Riverside Southern California; West Coast Turf, Winchester Rd. Winchester, CA. 0 Comment
  RSA789241  Juncus bufonius Naomi Fraga, Erika Gardner, Beth Kempton, Tom Kerrin-Torres, Michael Wall 2008-7-17 2423 Riverside Mount San Jacinto State Park; Hidden Lake 2652 Comment
  CAS-BOT-BC21103  Juncus bufonius var. bufonius James R. Shevock 1975-4-28 4246 Riverside South Coast Ranges. Mesa De Burro, Santa Rosa Plateau. 609 Comment
  UC69361  Juncus bufonius var. occidentalis H. M. Hall 1901-6-9 2076 Riverside vicinity Strawberry Valley; San Jacinto Mts. 1524 Comment
  UCR185177  Juncus duranii Naomi Fraga, Et al. 2006-7-11 1723 Riverside San Jacinto Mountains, Mount San Jacinto State Park, Hidden Lake 2652 Comment
  RSA666859  Juncus luciensis A. C. Sanders, W. W. Wright, J. Latting, et al. 1975-5-4 738 Riverside Mesa de Burro 610 Comment
  RSA192134  Juncus mexicanus E. W. Lathrop 1960-6-9 4960 Riverside 14 miles west of Murrieta. Comment
  RSA774066  Juncus mexicanus Duncan S. Bell, Jeffrey Morawetz, Kathleen Ashbaker 2010-6-28 1435 Riverside San Bernardino National Forest: Garner Valley, approximately 2.8 air miles southeast of junction of forest service road 6S04 and forest service road 6S13. Field surveys for potential habitat for the endangered Quino Checkerspot butterfly. 1374 Comment
  UC842923  Juncus mexicanus P. A. Munz 1922-6-23 5775 Riverside Hemet Valley San Jacinto Mts. 1371 Comment
  RSA519236  Juncus xiphioides Ed LaRue 1989-4-26 s.n. Riverside 2 miles (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouth of Rice Canyon. 488 Comment
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Mar 24 2007
  SEINET10879492  Juncus xiphioides J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12833 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
  CAS-BOT-BC80903  Juniperus James McMurphy 1916-8-13 s.n. Riverside Mountains between Fallbrook and Riverside Comment
  RSA600555  Juniperus californica L. C. Wheeler 1958-10-16 7527 Riverside Riverside: Along highway, 2 miles east of Citrus Experimental Station. Comment
  UCR94059  Juniperus californica Scott D. White, D. Haselfeld 1996-7-2 4263 Riverside San Jacinto/Santa Rosa Mtns, Pinyon Flat area, north of Hwy 74, c. 10 road mi east of junction with Hwy 371, west-facing slope of Sugarloaf Mountain and adjacent valley 1402 Comment
  UCSB15610  Juniperus californica Holmes, John 1963-5-5 Riverside Along California Highway 74 at Pinyon Flats Campground, 16.3 miles west of Junction with California Highway 111 1219 Comment
  CAS-BOT-BC234568  Justicia californica John Thomas Howell 1928-1-30 3306 Riverside 2 miles e. of Shaver's Well, Colorado Desert Comment
  CAS-BOT-BC234588  Justicia californica S. B. Parish 1916-5-13 10840 Riverside Cottonwood Springs, Colorado Desert 792 Comment
  SEINET2163464 Image available Justicia californica Philip A. Munz 1940-3-24 15692 Riverside 3 miles south of Cottonwood Springs, eagle Mountains 460 Comment
  CLARK-A1528-1225  Keckiella antirrhinoides Sherri Stange 1980-5-31 Riverside Hemet 518 Comment
  RSA339618  Keckiella antirrhinoides Robert F. Thorne, W. A. Tilforth 1980-5-28 54209 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  UCR154635  Keckiella antirrhinoides A. C. Sanders, Mike Misenhelter 2005-6-15 30988 Riverside Peninsular Range; Sage-Aguanga Region, 2 miles NNE of Vail Lake, 4 miles SSW of Sage, Denise Rd. at Bonita Rd., near Calle de Nino, 1.2 mi. NE of summit of (Big) Oak Mtn., SW of Rocky Ridge and SE of Black Hills 671 Comment
  UCR241571  Keckiella antirrhinoides A. C. Sanders 2013-4-16 40803 Riverside Peninsular Range; SE Gavilan Hills, SCE power line west of the San Jacinto River and south of Perris, below/NE of the intersection of McPherson Rd. and Keystone Dr. 450 Comment
  UCSB41257  Keckiella antirrhinoides Cowan, Clark 1978-4-25 Riverside 6.7mi(10.7 km) SW on 74 from jct w/ 71; 4.6 mi(7.3 km) from Lake Elsinore; Sta. Ana Mts; Cleveland Nat. Forest Comment
  RSA293534  Keckiella antirrhinoides subsp. microphylla C. W. Tilforth, Walter Wisura 1979-8-8 1905 Riverside Big Horn Sheep Overlook along Hiway 74 above Deep Canyon, s. of Palm Desert. Comment
  JEPS100903  Keckiella antirrhinoides var. antirrhinoides Dean W. Taylor 1998-5-13 16429 Riverside Aguanga Valley, mouth of Temecula Creek, on hillslopes just south of Highway 79 609 Comment
  NY786513  Keckiella antirrhinoides var. antirrhinoides A. L. Moldenke 1976-4-22 30580 Riverside Rancho California on Route 79 Comment
  UCR104940  Keckiella antirrhinoides var. antirrhinoides A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20698 Riverside San Jacinto Mountains, N side of the range, Twin Pines Creek below the confluence with Brown Creek [c. 2.5 miles below Twin Pines Rd. on dirt road] 854 Comment
  RSA764124  Keckiella cordifolia Linda M. Prince, Duncan S. Bell 2009-6-17 577 Riverside Cleveland National Forest Comment
  RSA787991  Keckiella cordifolia Linda M. Prince, Duncan S. Bell 2009-6-17 577 Riverside Cleveland National Forest. Comment
  UC729831  Keckiella rothrockii var. jacintensis Carl B. Wolf 1932-8-5 Riverside trail from Idyllwild to Tahquitz Valley; San Jacinto Mts., Summit of Devil's Slide 2438 Comment
  UCR178333  Keckiella ternata Tracy Tennant, Jeffrey Ross 1998-7-21 MOR- 641 Riverside San Bernardino Mtns., Morongo Indian Reservation, ridge east of upper Hathaway Canyon, west of Burro Flats 1037 Comment
  RSA0019431  Keckiella ternata subsp. ternata Verne Grant, Alva Grant 1951-7-19 16090 Riverside Idyllwild road, ca. 1 mile above Highway 74. 1220 Comment
  CLARK-A1528-4699  Koeleria macrantha John C. Roos 1952-4-29 5598 Riverside Reche Canyon 457 Comment
  RSA674943  Koeleria macrantha Scott D. White, Sandy Leatherman 2000-5-31 7977 Riverside Santa Rosa Plateau: Near Squaw Mountain. Series of unpaved roads on east- and north-facing slopes. 640 Comment
  JOTR37457  Krameria erecta Hodges, Stephen, T. Green 2016-5-24 579 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Quail Mountain Complex; On slopes with granitic boulders descending down east side of Minerva Hoyt peak towards Lost Horse area and in sandy washes beneath slopes (Stop 3). Comment
  SEINET189692  Krameria grayi Annie M. Alexander, L Kellogg 1941-5-14 2166 Riverside Near Shaver Summit 503 Comment
  UC574891  Krameria grayi C. Epling and Wm. Robison 1933-6-26 Riverside basin 5 mi s Lost Horse Wells; basin s Lost Horse Wells Comment
  RSA502493  Lactuca saligna Steve Boyd, T. S. Ross, L. Arnseth 1989-6-11 3734 Riverside Vail Lake area: edge of hills on N of Wilson Creek at E end of lake. 488 Comment
  RSA192095  Lactuca serriola H. A. Zuill 1966-7-26 300 Riverside About 7.5 miles SW of Murrieta. Comment
  RSA573433  Lagophylla ramosissima Steve Boyd, Tim Ross 1994-9-14 8342 Riverside Southern Santa Ana Mtns, San Mateo Canyon wilderness area of Cleveland National Forest, Southwestern edge of the Oak flat area, 0.5 miles S of Serrano Spring. 732 Comment
  JEPS69283  Lamarckia aurea W. L. Jepson 1901-5-17 1208 Riverside e of Riverside (on road to San Jacinto, journey from Riverside to Santa Rosa Peak and Palomar); Southern California 266 Comment
  UCR91425  Lamarckia aurea Scott D. White 1995-3-30 2656 Riverside San Jacinto Valley, Moreno Valley; hills c. 0.7 air mi directly south of 60 Fwy and west of bend in Moreno Beach Drive. Topo Q. shows 'Moreno' BM 2067 at top of hill. 579 Comment
  OBI8368  Langloisia setosissima subsp. setosissima David J. Keil, Malcolm Mcleod, Dirk Walters 1977-3-27 2061 Riverside Along Box Cyn Rd, ca. 20 mi ENE of Mecca in Orocopia Mts 274 Comment
  CAS-BOT-BC166021  Larrea tridentata Roxana S. Ferris 1918-6-13 958 Riverside 1 mi. south of Cabazon in White Water Wash Comment
  RSA1201  Larrea tridentata B. D. Stark 1930-4-1 1494 Riverside San Gorgonio Pass. 457 Comment
  RSA766668  Larrea tridentata Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-22 161 Riverside Chuckwalla Valley. N of I-10. Wiley Well Rd exit on 4x4 rd towards McCoy Peak. 213 Comment
  UCR272875  Larrea tridentata Cheryl Sevilla, Sarah J. De Groot, Forrest D. Freund 2015-4-1 071 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
  UCR41352  Larrea tridentata N. M. Fellows, A. C. Sanders 1985-5-7 166 Riverside San Jacinto Mountains, Oasis de los Osos Preserve, off Snow Creek Canyon at the N foot of the San Jacinto Mountains, 1 mi west of Snow Creek Village 488 Comment
  SD144037  Lasthenia californica Scott D. White 1997-2-28 4724 Riverside Elsinore area: SE of Hwy 74, ca. 1 mi E of jtn. with I-15 Freeway. 459 Comment
  UC34690  Lasthenia coronaria H. M. Hall 1902-4-1 2897 Riverside vicinity of Winchester 457 Comment
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Mar 20 2011
  UCR102836  Lasthenia coronaria A. C. Sanders 1997-3-26 20098 Riverside Lake Skinner area, along foot trail at west base of Tucalota Hills 518 Comment
  UCR182094  Lasthenia glaberrima Michael L. Charters, Tom Chester 2003-6-8 204 Riverside Peninsular Ranges; Santa Ana Mountains region, Santa Rosa Plateau Ecological Reserve: Mesa de Colorado, largest vernal pool, north edge along boardwalk 625 Comment
  RSA160876  Lasthenia gracilis P. C. Everett, Nick Lolonis 1962-4-13 24450 Riverside Temescal Canyon, intersection Hwy 71 and road to Lake Matthews Comment
  SBBG103913  Lasthenia gracilis S. D. White 1993-4-20 1215 Riverside SE of Estelle Pk, Gavilan Hills 792 Comment
  UCR91474  Lasthenia gracilis Scott D. White, M. Jacobsmeyer 1996-4-20 3959 Riverside Perris-Aguanga Basin region, SW of Perris: hillside south of the San Jacinto River channel 518 Comment
  UCR128296  Lathyrus latifolius Scott D. White, Teresa Salvato, Lia DeMarco, Jessica Christian 2001-6-30 8633 B Riverside San Jacinto Mtns, Idyllwild area; 'Strawberry Fuelbreak' between Inspiration Point and Strawberry Creek. I.e., southwest terminus of Double View Dr. west to creek 1646 Comment
  RSA405746  Lathyrus splendens B. C. Templeton 1930-4-5 s.n. Riverside Temecula Comment
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Oct 2 2009
  RSA612488  Lathyrus vestitus subsp. alefeldii D. L. Banks 1997-2-23 1329 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, north of Pechanga Road, south of Anza Road, just NNW of San Gabriel Church in the area burned by the 1996 Temecula Fire. 402 Comment
  UCR13437  Layia glandulosa Mike McCloskey 1973-5-19 s.n. Riverside San Jacinto Mtns, off Hwy 74 between Valle Vista and Mountain Center 915 Comment
  SDSU18396  Layia platyglossa C. Matt Guilliams 2008-2-21 469 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
  UC63240  Layia platyglossa H. M. Hall May 17 1901-Jun 1 1901 1835 Riverside e base San Jacinto Mt.; e base San Jacinto Mt. 914 Comment
  UCR133975  Layia platyglossa Mitch Provance, J. S. Ross 1998-3-27 MOR- 966 Riverside San Bernardino Mtns., Morongo Indian Reservation, Millard Canyon, just south of the juction with the NE bound road to Deep Cyn. 915 Comment
  UCR174162  Layia platyglossa A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32638 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
  POM184246  Layia platyglossa subsp. campestris P. A. Munz 1932-3-24 12022 Riverside North of Elsinore. 305 Comment
  RSA563927  Layia platyglossa subsp. platyglossa M. A. Patten 1993-3-20 s.n. Riverside SW edge of Hemet, vernal pools at the NW corner of Warren Rd. and Stetson Rd., adjacent to Ryan Field. 457 Comment
  RSA549244  Leersia oryzoides A. C. Sanders, CNPS field trip, O. F. Clarke 1991-10-5 11740 Riverside Riverside, Fairmount Park. Along Spring Brook between Lake Evans and the Santa Ana River, ca. 50-100 m below the lake. Comment
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Jan 9 2008
  SD114841  Lemna gibba Wayne P. Armstrong 1983-10-8 1170 Riverside Santa Ana River, east of bridge where Highway 31 crosses river (north of Norco). 206 Comment
  UCR228828  Lepidium dictyotum var. dictyotum A. C. Sanders, T. B. Salvato 2011-4-4 38972 Riverside Peninsular Range, Warm Springs Valley, 0.4 mi. WNW (276 deg. ) of intersection of Collier Ave. & Riverside Dr./Hwy 74, NE of Baker St. 387 Comment
  RSA596527  Lepidium didymum D. L. Banks 1996-7-16 1132 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). 426 Comment
  RSA796502  Lepidium fremontii J. Andre 2012-3-19 21394 Riverside Palen Mountains; along Palen Pass Road at Palen Pass. 383 Comment
  RSA0122715  Lepidium lasiocarpum Duncan S. Bell, LeRoy Gross 2016-3-30 9153 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
  RSA429920  Lepidium lasiocarpum N. R. Zabriskie, W. M. Zabriskie 1973-4-3 611 Riverside ''Poor-will Canyon'' (T5S, R4E, NE1/4 Sec 3), Palm Canyon drainage, E slope San Jacinto Mtns. 426 Comment
  RSA429925  Lepidium lasiocarpum Francis Fultz 17148 Riverside Colorado Desert. Comment
  RSA697451  Lepidium lasiocarpum J. R. Bruff 1927-3-12 34 Riverside Fingal Comment
  RSA718298  Lepidium lasiocarpum Michael Honer, L. Hulse 2004-4-2 1879 Riverside East Wide Canyon; near MWD aqueduct, appx 2 mi. N of Dillon Rd. 488 Comment
  UCR127146  Lepidium latifolium A. C. Sanders, Guy Bruyea 2003-6-12 26888 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
  UCR121785  Lepidium latipes A. C. Sanders, Carolyn Washburn 2001-4-17 24047 Riverside San Jacinto Valley, west edge of Hemet, SW corner of Florida Ave. (Hwy 74) and Warren Rd. 457 Comment
  UCR280638  Lepidium oblongum Arlee Montalvo 2017-4-20 674 Riverside Peninsular Range; Temescal Canyon, floodplain of Bedford Wash before confluence with Temescal Wash, south of Cajalco Rd. 245 Comment
  RSA162734  Lepidium virginicum J. Olmstead 1959-6-23 658 Riverside Desert Sun School near Idyllwild. 1646 Comment
  UC218152  Lepidium virginicum Munz and Harwood 1920-3-20 3399 Riverside 5 mi s Corona 304 Comment
  POM96474  Lepidium virginicum var. pubescens P. A. Munz 1926-4-30 10377 Riverside Alberhill Comment
  UC1536949  Lepidium virginicum var. robinsonii Gordon H. True Jr. 1935-3-11 66 Riverside Box Springs Sycamore Canyon 426 Comment
  UCR113592  Lepidium virginicum var. robinsonii A. C. Sanders 1998-1-15 21632 Riverside Lake Skinner area, Black Mtn., along road up north side 884 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
  UCR201673  Lepidium virginicum var. virginicum Scott D. White, Justin M. Wood 2008-6-18 12234 Riverside San Jacinto Mountains, meadow northwest of Keen Camp Summit, southwest of Hwy 79 1463 Comment
  RSA554634  Lepidospartum squamatum Scott D. White 1992-9-2 767 Riverside San Jacinto Valley: Vicinity of Gilman Hot Spirngs, N side of San Jacinto River, and a thin strip tending N of the river & W of the Hot Springs. 451 Comment
  UC952974 Image available Lepidospartum squamatum E. E. Schellenger 1904-10-15 Riverside Whitewater Wash Colorado Desert; Whitewater Wash, Colorado Desert Comment
  RSA736654  Leptochloa fusca subsp. uninervia Justin M. Wood 2008-7-16 32 Riverside Gavilan Hills at Temescal Wash, near Olsen Canyon, Morgan property, Alberhill area. Comment
  UCR37447  Leptochloa uninervia Steve Boyd 1981-4-8 s.n. Riverside Gavilan Plateau, Lake Mathews Road, south of Gavilan Peak 640 Comment
  CLARK-A1528-3534  Leptodactylon pungens 1937-7-16 2649 Riverside Little San Bernardino Mountains 1523 Comment
  UC106728  Leptodactylon pungens A. W. Anthony July 12, 1895 - July 17, 1895 Riverside San Jacinto Mts. 2590 Comment
  UC1618004  Leptosiphon Donald G. Nelson 1936-5-23 404 Riverside San Jacinto Mountains. Idyllwild, Fern Canyon, among forest of pines. Comment
  POM263081  Leptosiphon androsaceus J. C. Roos 1941-4-19 167 Riverside Reche Canyon - Plateau [Label indicates San Bernardino Co.] Comment
  RSA543904  Leptosiphon pygmaeus subsp. continentalis Steve Boyd, Orlando Mistretta 1991-5-22 6287 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dorland Mtn, W of Kolb Crk. 549 Comment
  RSA49186  Lesquerella tenella P. A. Munz 1949-4-12 13035 Riverside North base of Eagle Mts., Mojave Desert 945 Comment
  UCR202034  Lessingia filaginifolia Denise Woodard, G. Nuhn 1995-8-21 s.n. Riverside Peninsular Range; Perris-Aguanga Basin, 300 acre parcel at west end of Domenigoni Valley, c. 3 miles south of Winchester on the west side of Winchester Rd. 470 Comment
  RSA910  Lessingia glandulifera var. glandulifera John T. Howell 1927-8-2 569 Riverside Road to Hemet, Mt. San Jacinto. 1372 Comment
  RSA593780  Lewisia rediviva Jeri Hirshberg 1995-5-19 275 Riverside San Jacinto Mountains, Garner Valley. Comment
  UCD72382  Leymus condensatus T. B. Salvato; Kent Beaman 2005-5-16 781 Riverside San Jacinto Mtn. foothills. San Jacinto River E of Valle Vista, just downstream from the Forest Service boundary and N of CA Hwy. 74. 549 Comment
  RSA357754  Lilaea scilloides Robert F. Thorne 1973-5-23 43841 Riverside Santa Rosa Plateau: Mesa de Colorado 610 Comment
  UCR40550  Lilaea scilloides R. F. Thorne 1974-5-23 44677 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, Rancho California, at north base of Mesa de Colorado 610 Comment
  UCR3737  Lilium parryi Frank C. Vasek 1964-7-25 640725- 01 Riverside San Jacinto Mountains, Dark Canyon near Wet Canyon Campground Comment
  JEPS58191  Linanthus aureus W. L. Jepson 1914-5-17 5983 Riverside Pleasant Valley, Lookout Mt. Colorado Desert, Conchilla Range 914 Comment
  JOTR16799  Linanthus aureus subsp. aureus Walters, Jim 1967-3-14 s.n. Riverside Joshua Tree National Park. PLEASANT VALLEY 1005 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
  UCR88310  Linanthus bigelovii A. C. Sanders, K. C. Rose 1995-4-5 16362 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  RSA26965  Linanthus californicus C. L. Hitchcock 1940-4-12 6041 Riverside 8 mi. northwest of Elsinore 457 Comment
  POM13324  Linanthus floribundus subsp. hallii E. C. Jaeger 1921-4-10 1088 Riverside Santa Rosa Mountains, Rockhouse Canyon Comment
  JOTR35265  Linanthus jonesii La Doux, Tasha, M. Harding, K. Kain, E. Babich 2011-3-22 3251 Riverside Joshua Tree National Park. West Cottonwood Mountains; southeast edge of Pinkham Wash, east of Pinkham Canyon Road; rocky flats between small drainages in mouth of Pinkham Wash (Stop 1) Comment
  RSA778832  Linanthus jonesii J. Andre 2011-2-9 15904 Riverside Mecca Hills; along Box Canyon Road at upper end of gorge, approx. 6 miles SSE of Jct. with I-10, approx. 12 miles west of Chiraco Summit 284 Comment
  UC880048  Linanthus lemmonii Marcus E. Jones, A. M. 1882-4-25 3174 Riverside San Jacinto Comment
  UCR177112  Linanthus lemmonii Bill Wagner 1994-5-11 s.n. Riverside Black Mountain, c. 4 miles NNE of Lake Skinner 915 Comment
  UCR236901  Linanthus lemmonii Duncan S. Bell, Valentin Arvizu 2010-5-10 975 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 1.1 air mi southeast of junction of FS Road 6S13 and FS Road 6S04 1349 Comment
  UC306935  Linanthus liniflorus M. E. Jones 1903-5-11 10317 Riverside Banning Comment
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Mar 13 2011
  RSA554129  Linanthus maculatus George K. Helmkamp 1992-4-16 92 -4 Riverside Coachella Valley, soft, sandy bench of Mission Creek, 0.4 miles S of Indian Ave. on old Hwy 62. [A few scattered plants found on N side of Mission Creek between Hwy 62 & old Hwy 62, but none S of creek or W of Hwy 62.] 20 Comment
  SEINET2445412  Linaria canadensis Daphne K. Christopher, Hannah Stevens 2003-4-3 77 Riverside Uc Riverside, Motte Rimrock Reserve. Off Hairstreak Trail. 536 Comment
  SEINET7073304  Linaria canadensis A. G. Vestal 1963-4-27 s.n. Riverside Santa Gertrudis Wash southeast of Murrieta Hot Springs. Coordinate datum: NAD27. Comment
  UCR90365  Linaria canadensis var. texana Scott D. White 1995-6-30 3424 Riverside Santa Ana Mtn. foothills, Cole Creek, NW of Murrieta, upstream from Murrieta Creek confluence 396 Comment
  UC126713  Lipocarpha occidentalis F. M. Reed 1908-7-2 2443 Riverside San Jacinto Mountains, Lake Surprise Lake Surprise; San Jacinto Mountains, Lake Surprise Comment
  UCR263468  Lithophragma A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35580 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek watershed, c. 1.25 mi ENE of Mountain Center, nameless tributary to Coldwater Creek north of Johnson Meadow, below mapped spring 1479 Comment
  RSA5026  Lithophragma affine subsp. mixtum Dorothy R. Wolf 1932-3-20 26 Riverside Richman Ranch 2.5 mi N of De Luz. SW Riverside County 457 Comment
  POM153404  Lobelia cardinalis subsp. graminea P. A. Munz, I. M. Johnston 1928-9-12 11303 Riverside 2 miles S of Murrieta. Comment
  UCR136003  Loeflingia squarrosa Virginia Moran 2003-5-22 s.n. Riverside Peninsular Range, Wilson Valley Mitigation Bank (Center for Natural Lands Management), east of Sage Road and south of Wilson Valley Road 700 Comment
  UCR183006  Loeflingia squarrosa Mitch Provance 2003-5-5 4403 Riverside La Sierra Hills, Norco, NW side of the La Sierra Hills, east of the end of Rushmore Dr. 305 Comment
  UCR241425  Loeseliastrum schottii Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 40 Riverside Sonoran (Colorado) Desert, near Joshua Tree National Park, Coachella Valley, Dillon Rd. 4.21 miles north of Hwy 10 in Indio 91 Comment
  RSA735192  Lolium perenne Scott D. White, Angelia Carey 2004-6-4 10460 Riverside Indian Creek. Stream and margins in slow-flowing areas, gen. beneath riparian canopy. 549 Comment
  RSA595327  Lolium perenne D. L. Banks, Victor Steinmann 1996-4-20 0877 B Riverside Temecula, at Mobil Gasoline Station on Bedford Ct., approximately 0.1 miles E on Hwy 79 from I-15 off ramp. Collected in disturbed field and along wall of adjacent apartment complex, SE of the Gas Station. Comment
  SEINET251728 Image available Lolium rigidum Walter Graves 2002-5-15 502 -12 Riverside Grown at U.C. R. in Agricultural Opeations Fields 305 Comment
  SEINET7042769  Lomatium W. P. Vestal, A. G. Vestal 1955-3-25 s.n. Riverside Road shoulder on Long Valley Road north of Tecula. Ca. 0.1 mile east of U.S. 395 [=Interstate 15 & Route 79]. Comment
  UC875122  Lomatium dasycarpum subsp. dasycarpum I. W. Clokey 1933-4-18 6780 Riverside Gavilan Peak 700 Comment
  SD144086  Lomatium lucidum A. C. Sanders, T. Thomas, O. Clarke 1997-5-4 20638 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
  UC21220  Lomatium lucidum Mrs. Gregory 1892-1 Riverside San Jacinto Comment
  CLARK-A1528-481  Lotus argophyllus Charlotte Stocks 1964-6-12 Riverside Whitewater Canyon Comment
  UCR84621  Lotus argophyllus Scott D. White 1994-4-21 1994 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  RSA406721  Lotus argophyllus var. argophyllus Christopher Davidson, B. Gustafson 1977-4-7 5586 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
  RSA792747  Lotus argyraeus Robert F. Thorne 1995-3-29 63033 Riverside White Water Canyon. 600 Comment
  UCR214135  Lotus hamatus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37739 Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 518 Comment
  UCR225441  Lotus hamatus A. C. Sanders, T. B. Salvato 2011-3-29 38844 Riverside Peninsular Range; Edge of Gavilan Hills, Meadowbrook area, between Perris and Lake Elsinore, along Hwy 74 at Wasson Canyon Rd. and to c. 1/2 between Wasson & Hammack Ave. 500 Comment
  RSA406173  Lotus heermannii Robert Gustafson 1980-5-5 1561 Riverside Whitewater Canyon Road, 1.8 miles from the junction with Interstate 10. 610 Comment
  RSA0028965  Lotus heermannii Keith E. Hoffmaster 1937-7-5 818 Riverside San Jacinto Mtns. Comment
  RSA0029409  Lotus heermannii John F. Emmel 1995-8-6 1388 Riverside West Ridge, SW of Idyllwild. 1585 Comment
  UCR169469  Lotus humistratus John F. Green 2005-4-28 s.n. Riverside Peninsular Range; Southern Santa Ana Mtns., Santa Rosa Plateau, hills on the south side of Tenaja Rd., between Squaw Mtn. and DeLuz Creek 655 Comment
  RSA406728  Lotus nevadensis var. nevadensis N. C. Cooper 1944-6-16 1445 Riverside San Jacinto Mtns. Pine Cove. 1524 Comment
  UCR38688  Lotus oblongifolius J. M. Stewart 1985-6-2 8522 Riverside Western Colorado Desert/ San Jacinto Mtns, Andreas Canyon, Palm Canyon drainage 244 Comment
  POM243699  Lotus procumbens var. procumbens E. C. Jaeger 1938-5-14 s.n. Riverside Near Stubbe Springs, Joshua Tree National Mon. 1402 Comment
  UCR208343  Lotus purshianus O. F. Clarke 2004-5-9 s.n. Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, along vernal pool trail 625 Comment
  UC864868  Lotus rigidus S. B. Parish 1917-4-4 Riverside Palm Canyon Colorado desert Comment
  SEINET8721510 Image available Lotus rigidus Lewis S. Rose 1938-1 38336 Riverside 15 mi. sw. of Cathedral City. Palms to Pines Highway, San Jacinto Mts. 671 Comment
  RSA524445  Lotus salsuginosus var. salsuginosus Steve Boyd, Tim S. Ross, Laurel Arnseth, Jaime Bonilla, Bob Boyd 1990-4-3 4081 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
  CLARK-A1528-487  Lotus scoparius Fred B. Essig 1964-1-11 10 Riverside Corona 640 Comment
  RSA406911  Lotus scoparius M. B. Dunkle 1933-5-6 3384 Riverside Dry Morongo Creek. Comment
  UCR125296  Lotus scoparius A. C. Sanders 2002-11-21 25625 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy,' mouth of Bixby Canyon 457 Comment
  SEINET244846 Image available Lotus scoparius var. brevialatus A. C. Sanders, L. A. Stoddart 2002-4-9 24931 Riverside The Badlands; Hills and canyons west of Laborde Canyon, 1 mi NE of Eden Hot Springs, SW of Beaumont Comment
  UC1537087  Lotus scoparius var. brevialatus Gordon H. True Jr. 1935-3-11 78 Riverside Box Springs Comment
  RSA291598  Lotus strigosus C. W. Tilforth, Walter Wisura 1979-4-11 1776 Riverside Along Rancho California Rd. west of Temecula. Comment
  RSA339065  Lotus strigosus R. F. Thorne, C. W. Tilforth 1980-5-28 54244 Riverside Along Whitewater River, ca. 3.2 miles N of Whitewater Post Office and Hwy 10. Comment
  RSA503427  Lotus strigosus J. D. Olmsted 1962-5-10 3664 Riverside West of crest between Sandia and DeLuz Creeks along Murrieta to DeLuz Road. 206 Comment
  UC1129239  Lotus strigosus H. S. Yates 1937-3-23 6444 Riverside 15 mi nne Mecca; Themal Quad. 457 Comment
  UC1495655  Lotus strigosus Robert T. Clausen with E. R. and H. E. Clausen 1963-4-18 63049 Riverside 10 km se Murrieta (top of ridge s of Santa Gertrudis); Transverse Ranges Comment
  UCR97473  Lotus strigosus A. C. Sanders 1997-3-1 19708 Riverside Riverside, Box Springs Mtns.: Coyote Hill (Bench Mark 'Versity', 1386 ft.) and ridge S and SE of the UCR Botanic Garden 427 Comment
  RSA703479  Lotus tomentellus LeRoy Gross, Leland Lubinsky, Victor W. Steinmann, Linda Lee Worlow 2005-2-17 1423 Riverside Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  UCR72200  Lotus tomentellus Theo Glenn 1992-3-31 92- 13 Riverside Sonoran (Colorado) Desert, north side Eagle Mts, Storm Jade Mine 671 Comment
  UCR99790  Ludwigia peploides subsp. peploides Julie A. Greene, Steve Boyd, D. E. Bramlet, , Hilda Flores, H. Ochoterana 1993-7-9 1422 Riverside San Jacinto Valley, San Jacinto Wildlife Area [northwest of Lakeview] 433 Comment
  JOTR38668  Lupinus arizonicus Hodges, Stephen R. 2017-2-1 674 Riverside Joshua Tree National Park. Eagle Mountains, South East facing sand ramps near the aqueduct road Comment
  RSA21750  Lupinus arizonicus C. B. Wolf 1937-4-5 s.n. Riverside Riverside. 30 Comment
  RSA414838  Lupinus arizonicus E. S. Spalding 1926-2-13 s.n. Riverside Colorado Desert. Box Canyon on Blythe Road. Comment
  RSA795474  Lupinus arizonicus C. P. Cowan 1978-4-23 1208 Riverside 6.3 miles (10 km) south on Highway 74 from its junction with Highway 111 at Indian Wells. 480 Comment
  SEINET8043502 Image available Lupinus arizonicus Duncan S. Bell, Evan Meyer 2014-1 6521 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern section of range; approximately 1 air mile northwest of Canyon Spring. 422 Comment
  UC194822  Lupinus arizonicus S. B. Parish May 13, 1916-May 18, 1916 10851 Riverside Cottonwood Springs; Colorado Desert, Cottonwood Springs Comment
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Oct 9 2010
  SEINET10488550  Lupinus arizonicus Duane Isely, Wendell H. Bragonier 1960-3-22 Isely 7203 Riverside Roadside, edge of Desert Palms. Comment
  UC495199  Lupinus bicolor Philip A. Munz 1932-3-24 12017 Riverside Corona 365 Comment
  UCR166163  Lupinus bicolor John F. Green 2005-2-10 s.n. Riverside Peninsular Range, E of Temecula, Rancho California, SE of intersection of Mesa Verdugo and Calle Vista, N of Pauba Valley and south of Buck Mesa 430 Comment
  UCSB37850  Lupinus bicolor Sanders, A. 1980-7-18 Riverside Garner Valley; near the junction of the Thomas Mtn. Rd. with Hwy. 74; about 1 mile SE. of the head of Hemet Lake; T 6S, R 3E, SW1/4 of SW1/4 sec. 10 1341 Comment
  RSA33560  Lupinus bicolor subsp. microphyllus N. C. Cooper 1944-3-24 1008 Riverside Banning. 701 Comment
  POM350018  Lupinus bicolor subsp. umbellatus Anstruther Davidson 1930-1 s.n. Riverside Colorado Desert. Comment
  UCR16234  Lupinus concinnus K. A. Lamb 1968-4-29 680429- 5 Riverside E side San Jacinto River Wash on Main Street, San Jacinto, near Soboba Hot Springs Golf Course Comment
  UCR97281  Lupinus concinnus George K. Helmkamp 1986-4-7 760 Riverside Sonoran (Colorado) Desert, S of Morongo Valley. First canyon east of and parallel to Hwy 62 north of Indian Ave. 579 Comment
  RSA543773  Lupinus concinnus subsp. concinnus Steve D. Boyd 1991-5-7 6175 Riverside Santa Ana Mountains, SE and E side of Elsinore Peak. 1006 Comment
  RSA249470  Lupinus concinnus subsp. optatus John F. Emmel 1973-4-7 430 Riverside Carrizo Creek wash just below Dos Palmas Spring, NE of Pinyon Crest, E. end San Jacinto Mts. 1037 Comment
  RSA630297  Lupinus concinnus subsp. optatus R. S. Woglum 1941-6-12 3057 a Riverside Idyllwild. Comment
  UCR35026  Lupinus concinnus subsp. optatus L. B. Ziegler 1969-5-5 353 Riverside San Jacinto Mtns,, Hemet Valley ( = Garner Valley). 1402 Comment
  POM46815  Lupinus concinnus subsp. orcuttii Mary F. Spencer 1920-4-19 1464 Riverside Palm Springs. 122 Comment
  RSA248729  Lupinus concinnus subsp. orcuttii Christopher Davidson 1973-4-19 1995 Riverside Joshua tree Natl. Monument, various sites along the road, 1-10 miles s of Joshua tree. 1220 Comment
  UCR281482  Lupinus excubitus var. hallii Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-4-4 417- 91 Riverside Gavilan Hills, SCE transmission route (projected) 0.6 miles NNW of Lake St. and Walker Canyon Rd. 152 Comment
  RSA17253  Lupinus formosus Carl B. Wolf 1936-6-17 7961 Riverside Santa Ana Mts., Tenaja Road, North end of La Cienaga. 732 Comment
  UCR104926  Lupinus hirsutissimus A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20654 Riverside San Jacinto Mountains, north side along Hwy 243, 1.5 mi below Twin Pines Ranch Road (McMullen Flat), north slope of Peak 3740 1067 Comment
  UCR16244  Lupinus hirsutissimus H. C. Sharma 1976-4-25 760425- 02 Riverside San Jacinto Mtns., on Idyllwild - Banning Road. 915 Comment
  UCR35024  Lupinus hirsutissimus L. B. Ziegler 1967-4-18 113 Riverside Peninsular Ranges, Foothills of the San Jacinto Mtns, on Poppet Flat Rd 915 Comment
  SEINET10485441  Lupinus hyacinthinus David B. Dunn 1946-8-17 Dunn 2722 Riverside 1/4 mi. W of hidden lake. San jacinto mts. Comment
  SEINET10488969  Lupinus sparsiflorus Shervncik 1973-3-18 SHERVNCIK 783 Riverside Santa Ana mtns. Mockingbird canyon lake. Loam. Grassland. Mockingbird Canyon road, about 5 mi n of lake Matthews. Comment
  RSA572982  Lupinus sparsiflorus subsp. sparsiflorus Steve D. Boyd 1986-4-22 1733 Riverside Temescal Canyon: Walker Canyon area, where Alberhill Creek (=Temescal Creek) flows between Alberhill Mtn. and Gavilan Hills. Comment
  POM294824  Lycium andersonii Lyman D. Benson 1945-3-29 11630 Riverside Canyon on Palm Spring Rd. Little San Bernardino Mt 610 Comment
  UCR242302  Lycium andersonii A. C. Sanders, T. B. Salvato 2012-10-12 40428 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Wileys Well Rd. c. 3 miles north of Wileys Well/ Bradshaw Trail 155 Comment
  UCSB38066  Lycium andersonii Roos, John 1981-8-1 Riverside 2 miles east of Desert Center Comment
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May 21 2016
  RSA575859  Machaeranthera asteroides var. asteroides Steve Boyd 1980-9-22 s.n. Riverside Lakeview Mountains, Juniper Flats area along Juniper Flats Rd. at '4 J's Ranch.' Comment
  RSA737262  Machaeranthera asteroides var. asteroides Scott D. White, Justin M. Wood 2008-9-17 12540 Riverside Perris Basin: Romoland, 1/4 mile S of Ethanac Rd, between San Jacinto Rd and Palomar Rd, just S of railroad tracks. 442 Comment
  UCR106356  Machaeranthera canescens subsp. canescens John Wear, Nathan Moorhatch 1996-9-19 s.n. Riverside Peninsular Range; San Jacinto Mtns., upper end of Garner Valley 1433 Comment
  UCR107746  Madia gracilis D. L. Banks 1997-5-5 1991 Riverside NW Palomar Mtns, Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pachanga Creek. east of where road crosses to southern bank of south fork of Pechanga Creek. 482 Comment
  UCR261697  Malacothamnus densiflorus Dick Newell, Judy Booth 2015-5-17 404 Riverside Peninsular Range; Santa Ana Mtns., Cleveland National Forest, South Main Divide Rd., 0.53 mi. NW of Elsinore Peak 968 Comment
  UC33276  Malacothrix clevelandii H. M. Hall June 1901 2087 Riverside exposed s slopes in vicinity Chalk Hill; San Jacinto Mountains 1524 Comment
  UCR89785  Malacothrix clevelandii Scott D. White, S. J. Myers, S. Ogg Wilcox 1995-6-16 3345 Riverside Peninsular Range; Santa Ana Mns., Proposed pipeline route; Lake Elsinore Pumped Storage Hydroeletric Project. west of Lake Elsinore, SE of Hwy 74 915 Comment
  CAS-BOT-BC347693  Malacothrix glabrata H. M. Hall 1905-5-1 6028 Riverside Colorado Desert. Near Pinto Mts. Comment
  RSA550038  Malacothrix glabrata Walter Wisura, A. King, L. Newcomb 1992-4-10 4669 Riverside Colorado Desert, Morongo Valley, Mission Creek Ranch W of Highway 62 below Morongo Valley. Comment
  RSA543128  Malosma laurina Steve Boyd 1991-3-17 5470 Riverside Jurupa Hills, N of Glen Avon. Cove on S flank, just W of Soto St. from white limestone outcrops to summit E of Pyrite Canyon. Comment
  UCD116864  Malosma laurina R. Tofsrud 1951-4-25 s.n. Riverside Corona to Elsinore. Comment
  UCR37437  Malva parviflora Steve Boyd 1981-4-8 s.n. Riverside Gavilan Plateau, Lake Mathews Road, south of Gavilan Peak 640 Comment
  RSA19893  Malvella leprosa Robert F. Thorne, P. A. Munz, E. W. Lathrop 1968-5-8 37573 Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California 671 Comment
  RSA764877  Malvella leprosa Justin M. Wood 2010-9-8 2596 Riverside Beaumont Badlands: San Timoteo Canyon: Just SE of El Casco Substation along San Timoteo Creek. 640 Comment
  OBI74465  Marah macrocarpa David J. Keil 1983-4-15 16902 Riverside E of Temecula on SR 79 Comment
  RSA605764  Marah macrocarpa Scott D. White 1996-3-16 3830 Riverside Lakeview Mts, N of Winchester, at Maze Stone Picnic Area. SE-facing slope. 610 Comment
  RSA253700  Marina parryi Noel Holmgren, Patricia K. Holmgren, Ruth E. Kern 1973-3-21 6426 Riverside Big Maria Mountains, 12 air miles north of downtown Blythe 290 Comment
  RSA498353  Marina parryi Robert L. Dressler 1949-3-19 411 Riverside Box Canyon, Orocopia Mts. Comment
  RSA776692  Marina parryi Duncan S. Bell, Amanda Turek 2010-4-10 791 Riverside Riverside Mountains; southern section of the mountain range; approximately 1 air mile southwest of Riverside Mountain Peak. 269 Comment
  UCSB3056  Marina parryi Broder, Richard 1958-03 Riverside 5.8 miles east of Desert center on U.S. 60-70 Comment
  UCR262275  Marrubium vulgare A. C. Sanders 2006-5-13 32289 Riverside Peninsular Range, 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
  RSA409844  Marrubium vulgare Freda Detmers 1931-6-19 s.n. Riverside Chino Hills. Comment
  UC1605508  Marsilea vestita subsp. vestita Terry O'Brien May 1995 2126 Riverside ca. 5 mi sw of Grand Ave. in Murrieta (on Clinton Keith Rd., Pool C2 in Lathrop & Thorne); Mesa de Colorado, Santa Rosa Plateau Preserve 600 Comment
  UCR240042 Image available Matelea parvifolia A. C. Sanders, Tim Thomas, T. B. Salvato 2012-11-1 40515 Riverside Sonoran (Colorado) Desert, Bradshaw Trail, Chuckwalla Bench area on S side of Chuckwalla Mountains, 8.9 km SE of Gasline Rd. at narrow wash crossing 701 Comment
  UCR140306  Matricaria matricarioides A. C. Sanders 2004-4-9 27475 Riverside San Jacinto Valley, Tres Cerritos, c. 3 miles WNW of Hemet, east of the Lakeview Mtns., mouth of canyon on south side, vicinity of Rose Rd. 457 Comment
  UCR20790  Matricaria matricarioides A. C. Sanders, Steve Boyd 1980-5-2 1400 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  RSA575962  Medicago polymorpha Steve D. Boyd 1981-4-10 s.n. Riverside Gavilian Hills region, Gavalian Plateau east of Estelle Mountain along Estelle Mountain Road. 671 Comment
  UCR234276  Melia azedarach A. C. Sanders 2012-4-12 40020 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. between Glen Ivy and Indian Truck Trail, c. 250 m SE of El Hermano Rd. 315 Comment
  UCR18462  Melica frutescens Frank C. Vasek, O. F. Clarke 1966-4-4 s.n. Riverside Santa Rosa Mtns, Hwy 74 at Royal Carrizo Road, Deep Canyon drainage 917 Comment
  HSC79631  Melica imperfecta Paul Bailey 1972-5-14 132 Riverside 5 mi. SE of Temecula, Hwy. S 16, Pechanga Canyon. 671 Comment
  POM9732  Melica imperfecta Mary F. Spencer 1921-4-16 1842 Riverside Banning. Comment
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Mar 13 2011
  RSA10520  Melica imperfecta C. F. Baker 1909-05 s.n. Riverside Fairmont Hill. Comment
  RSA27236  Melica imperfecta C. L. Hitchcock 1940-4-12 6042 Riverside 8 mi. northwest of Elsinore 457 Comment
  UC1931139  Melica imperfecta Scott D. White, Justin Wood 2008-6-19 12274 Riverside San Jacinto Mountains: Meadows at Baldy Mountain. (Idyllwild) Comment
  UCR22153  Melica imperfecta Steve Boyd 1980-5-3 173 Riverside Harford Springs Co. Park, NW corner of the Gavilan plateau. N end of the juniper grove Comment
  SBBG67127  Melilotus indicus M. N. Ackley 1928-3-10 579 Riverside Bridge Haven [Service Station in Whitewater, 1920s -1950] 426 Comment
  RSA49100  Melilotus officinalis R. Weatherby 1949-5-29 13393 Riverside Campus of La Sierra College. Arlington Comment
  JOTR29286  Menodora scoparia La Doux, Tasha 2003-9-4 1089 Riverside Joshua Tree National Park. Queen Mountain, above Key's Ranch, near old dam Comment
  UCR107766  Mentha D. L. Banks 1997-11-15 2194 Riverside NW Palomar Mtns, Agua Tibia Mtns: N face of Dorland Mtn, on the north side of the Dorland Mtn Arts Colony. Along the margins of a small man-made pond. 549 Comment
  RSA549249  Mentha canadensis A. C. Sanders, O. F. Clarke 1991-10-5 11746 Riverside Santa Ana River bottom, Rancho Jurupa Park, Pleasant Acres Lake. Comment
  POM3013  Mentzelia affinis C. F. Baker s.n. Riverside Hemet Comment
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Mar 24 2011
  RSA440355  Mentzelia affinis Robert Gustafson 1978-3-21 845 Riverside Joshua Tree National Monument, about 3 miles north on the road leading through the park and Hwy 70. 640 Comment
  RSA0123351  Mentzelia albicaulis Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9053 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Agua Alta Canyon, approximately 3.5 air miles southeast of the summit of Martinez Mountain. 639 Comment
  UC872424  Mentzelia albicaulis Ira L. Wiggins 1937-3-9 8761 Riverside 5 m w Shaver's Well Comment
  JOTR31008  Mentzelia involucrata La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1294 Riverside Joshua Tree National Park. Stop 5: Hexie Mountains, steep gravel slopes above north side of Blue Cut Gorge Comment
  RSA440411  Mentzelia involucrata Geo. Cantwell 1935-4-8 s.n. Riverside McCoy Springs, McCoy Mnts. [NW of Blythe] Comment
  RSA554206  Mentzelia involucrata Theo Glenn 1991-5-2 91 -29 Riverside McCoy Mtns, NW of Blythe. 350 Comment
  SBBG25136  Mentzelia involucrata D. Myrick 1966-4-2 1332 Riverside upper end of Aqueduct Rd, SE of Desert Hot Springs Comment
  UC1922408  Mentzelia involucrata Naomi Fraga, Lisa Rojas 2005-2-10 1358 Riverside Colorado Desert; Northeastern Colorado Desert region; Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 365 Comment
  RSA440418  Mentzelia involucrata var. megalantha Elbert Benjamine 1929-4-7 126 Riverside Whitewater Canyon, Riverside County. Comment
  RSA0127363  Mentzelia longiloba var. longiloba F. W. Peirson 1932-3-22 9809 Riverside About 6 miles N of Blythe on Needles Road. 122 Comment
  CAS-BOT-BC435294  Mesembryanthemum nodiflorum A. C. Sanders 2004-5-12 27856 Riverside Elsinore Basin Region: Alberhill Mountain, northwest foot near Lake St. at Alberhill. 378 Comment
  RSA645682  Microseris douglasii subsp. platycarpha Scott D. White 1999-5-2 7285 Riverside Perris Basin: Perris / Sun City area. Just east of Goetz Rd. and south of Ethanac Rd., ca. 1.5 - 2 mi. W of I-215 freeway. 442 Comment
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Jun 26 2008
  UCR228821  Microseris heterocarpa A. C. Sanders 2011-4-26 39321 Riverside Peninsular Range, Alberhill Mountain, along dirt track parallel to Coal Ave./Nichols Rd. 432 Comment
  UCR112560  Microseris lindleyi A. C. Sanders 1998-3-17 21742 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, south of Hemet 343 Comment
  UCR156373  Microseris lindleyi T. B. Salvato, Kent Beaman 2005-5-16 875 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
  UCR21294  Microseris lindleyi A. C. Sanders, K. Berg 1980-5-1 1350 Riverside Peninsular Range; San Jacinto Mtns., Garner Valley area, 1.8 mi NE of Kenworthy Ranger Station on Morris Ranch Road 1616 Comment
  UCR240652  Microseris lindleyi Tracy Tennant, Mitch Provance 1998-6-16 MOR- 402 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper Millard Canyon, north of Cabazon 1052 Comment
  UCR90380  Mimulus aurantiacus D. L. Banks, Steve Boyd 1995-6-2 0560 Riverside Palomar Mtns., Cleveland Nat'l Forest, Agua Tibia Wilderness Area, N face of N peak of Agua Tibia Mt., on the Wooodchuck Trail north of the Riverside Co. boundary, c. 0.25 mi south of the clay grasslands in S32. 902 Comment
  UC943818  Mimulus aurantiacus var. pubescens M. Van Rensselaer 1946-7-16 1922 Riverside above Idyllwild (Suicide Rock Trail) 1920 Comment
  LA209130  Mimulus aurantiacus var. puniceus W. E. Pequegnat; 1939-4-8 43 a Riverside Santa Ana Mts Comment
  POM83  Mimulus aurantiacus var. puniceus H. M. Hall 1902-4-21 2928 Riverside Vicinity of Riverside, Gavilan hills. 457 Comment
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Aug 19 2010
  RSA221044  Mimulus aurantiacus var. puniceus E. W. Lathrop 1966-4-20 6194 Riverside Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. 1220 Comment
  RSA442707  Mimulus aurantiacus var. puniceus Robert Gustafson 1983-4-18 2500 Riverside Clinton Keith Road, about 3 miles from its junction with Hwy. 15, eastern slopes of the Santa Ana Mts. 457 Comment
  JOTR33997  Mimulus bigelovii var. bigelovii La Doux, Tasha, M. Harding 2010-4-7 2885 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; side canyon leading north, approx. 1 mile north of park boundary Comment
  POM292851  Mimulus bigelovii var. bigelovii Lyman Benson, Robert Benson 1952-4-8 14846 Riverside Colorado Desert. 2 miles west of Shaver Summit, east of Indio, US 66. Colorado Desert Drainage Area. 610 Comment
  RSA703474  Mimulus bigelovii var. bigelovii LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda L. Worlow 2005-2-17 1417 Riverside Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  UCSB44893  Mimulus bigelovii var. bigelovii Collins, Elizabeth 1977-3-29 Riverside Corn Springs Campground; 8 miles south of Hwy. 10 457 Comment
  JEPS23554  Mimulus brevipes Peter H. Raven 1958-5-17 12947 Riverside 7.4 mi se Banning (on road to Idyllwild); San Jacinto Mountains Comment
  RSA47935  Mimulus brevipes N. C. Cooper 1943-9-11 924 Riverside Below Idlewild. 915 Comment
  UCR101801  Mimulus cardinalis George K. Helmkamp, E. A. Helmkamp 1998-8-17 4443 Riverside Santa Ana Mtns., San Juan Canyon along the Ortega Hwy (Calif. Hwy 74) beside the Orange Co. line 503 Comment
  OBI35634  Mimulus guttatus Norman C. Cooper 1944-5-6 1211 Riverside Whitewater Cyn 457 Comment
  UCR156100  Mimulus guttatus T. B. Salvato, Kent Beaman 2005-5-16 847 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
  UCR60543  Mimulus guttatus subsp. guttatus K. Tomlinson, D. Kama, R. F. Thorne 1985-3-27 893 Riverside Santa Rosa Plateau, Mesa de Colorado 610 Comment
  PASA127  Mimulus latidens Frank W. Peirson 1922-5-19 Riverside Menifee Valley 426 Comment
  CSUSB912  Mimulus longiflorus Steve Kulju 1974-4-27 Riverside Box Springs Mountains Box Springs Mountains; dirt road to the radio tower, 4 miles from Pigeon Pass Road. 761 Comment
  UC922770  Mimulus nasutus Annie M. Alexander and Louise Kellogg 1940-3-21 885 Riverside 20 mi s Twenty Nine Palms (at base of Barker Dam); Mohave Desert 1322 Comment
  UCR4094  Mimulus palmeri Carole Sims 1965-5-1 s.n. Riverside San Jacinto Mtns, c. 3 mi from Mountain Center on highway down to Hemet, on rise across highway from marked turnout on right side (facing downhill) 1098 Comment
  JEPS3996  Mimulus parishii W. L. Jepson 1901-5-22 1402 Riverside near San Jacinto Mt.; Palm Canyon 914 Comment
  JOTR30252  Mimulus pilosus Leary, C. and Leary, Pat 1979-5-6 3032 Riverside Joshua Tree National Park. Barker Dam, Joshua Tree National Monument, T2S R8E sec 4 Comment
  RSA296184  Mimulus pilosus Barry A. Prigge 1980-8-5 3822 Riverside Whitewater Canyon; 0.5 mile N of trout farm. 701 Comment
  UC886073  Mimulus pilosus Carl B. Wolf 1932-8-5 3930 Riverside summit of Devil's Slide Trail from Idyllwild to Tahquitz Valley; San Jacinto Mts. 2438 Comment
  UCR108858  Mimulus pilosus Heidi A. Haid 1969-1 s.n. Riverside San Jacinto Mtns, Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR154630  Mimulus pilosus A. C. Sanders, Mike Misenhelter 2005-6-15 31005 Riverside Peninsular Range; Sage-Aguanga Region, 2 miles NNE of Vail Lake, 4 miles SSW of Sage, Denise Rd. at Bonita Rd., near Calle de Nino, 1.2 mi. NE of summit of (Big) Oak Mtn., SW of Rocky Ridge and SE of Black Hills 671 Comment
  UCR47223  Mirabilis californica B. G. Pitzer, L. F. LaPre 1987-3-2 0435 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
  CAS-BOT-BC434679  Mirabilis laevis var. crassifolia Frank W. Gould 1943-4-17 2120 Riverside 12 miles south of Corona. Comment
  RSA92024  Mirabilis laevis var. crassifolia R. M. Straw 1954-3-14 519 Riverside Jackrabbit trail, Badlands, 1/2 mile E of Hwy 79. Comment
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Feb 4 2009
  RSA464241  Mirabilis laevis var. retrorsa Martha Hilend 1928-3-11 88 Riverside Morongo Pass, Colorado Desert region. Comment
  RSA464248  Mirabilis laevis var. retrorsa H. de Forest 1924-07 s.n. Riverside Cabazon. Comment
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Mar 13 2011
  OBI29865  Mirabilis laevis var. villosa Melissa Luckow, Rhonda Riggins 1982-4-15 836 Riverside Hwy 371, 1.2 mi N of jctn with hwy 79 in Aguanga Comment
  UC1563079  Mirabilis laevis var. villosa Steve Boyd and Orlando Mistretta 1986-3-13 1480 Riverside ne Desert Center (first large canyon at nw tip of western segment of range); w side Palen Mts Comment
  RSA0104457  Mirabilis tenuiloba Duncan S. Bell, Sarah DeGroot, Cheryl Sevilla 2015-2-10 7744 Riverside Santa Rosa Mountains; a narrow unnamed canyon about 2 air miles south of La Quinta, and about 5.25 air miles northeast of the summit of Martinez Mountain. 232 Comment
  SD225020  Modiola caroliniana A. C. Sanders 1996-3-24 18022 Riverside Riverside: UCR campus. Weed in the lawn on the west side of campus near The Barn. 334 Comment
  UCSB25307  Monardella australis subsp. australis Gliessman, Stephen 1968-7-11 Riverside Along Deer Springs Trail, 0.7 mile north of Deer Springs, San Jacinto Mountains 2682 Comment
  UCR195145  Monardella breweri subsp. lanceolata A. C. Sanders, Tim Thomas 2008-8-1 35929 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1448 Comment
  CHSC116478  Monardella lanceolata R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49544 Riverside Santa Ana Mountains: along Ortega Hieghway (74), perhaps 1/4 mile west of El Cariso. Comment
  LA62727  Monardella linoides subsp. linoides Philip A. Munz; 1938-8-14 15380 Riverside Santa Rosa Mountains, E of Toro Peak 2285 Comment
  CAS-BOT-BC215497  Monardella nana Elizabeth McClintock 1941-7-15 115 Riverside On slope south of Strawberry Creek and west of Domengonio Flats, San Jacinto Mts. Comment
  LA96093  Monardella nana Elizabeth McClintock; 1941-5-31 51 Riverside 6 mi from Anza turn off Comment
  RSA0014348  Monardella nana Elizabeth McClintock 1941-6-8 55 Riverside Road to Santa Rosa Mt. 0.1 miles from Pines to Palms Highway. Comment
  RSA651660  Monardella nana subsp. arida Elizabeth McClintock, H. Lewis 1941-6-29 81 Riverside Santa Rosa Peak 2454 Comment
  SEINET10829421  Monardella nana subsp. arida A. Graff 1993-6-24 Graff 63 Riverside San Bernadino National Forest, Santa Rosa Mtn. .75 miles down Santa Rosa Mtn. Rd. (USNFS Rd. 7S02) from Santa Rosa Camp, on left side of road (heading back towards Hwy. 74). T7S,R5E,S29. 1 small clump, close to, but not under Quercus chrysolepis. Bare, gravelly road bank. Comment
  UC63741  Monardella nana subsp. tenuiflora H. M. Hall 1897-7-17 691 Riverside Tahquitz Valley San Jacinto Mountains 2438 Comment
  CAS-BOT-BC349790  Monoptilon bellioides F. W. Peirson 1920-2-15 1383 Riverside Near Palm Springs, Coachella Valley Comment
  CAS-BOT-BC349804  Monoptilon bellioides Marcus E. Jones 1906-4-27 s.n. Riverside Indio, Colo. Desert Comment
  POM10253  Monoptilon bellioides Charlotte M. Wilder 1907-04 s.n. Riverside Palm Springs. Comment
  RSA4676  Monoptilon bellioides I. M. Johnston 1917-4-4 s.n. Riverside Palm Canyon, near Palm Springs. 457 Comment
  CAS-BOT-BC349809  Monoptilon bellioides L. R. Abrams 1926-3-26 11031 Riverside Palm Springs Comment
  RSA94168  Monoptilon bellioides F. W. Peirson 1922-4-11 2868 Riverside Deep Canyon Wash, southwest of Indio 244 Comment
  RSA254372  Montia fontana E. W. Lathrop 1975-5-4 5450 Riverside Santa Ana Mountains, Santa Rosa Plateau, Mesa de Burro, 3.0 miles W of Murrieta. Comment
  CDA39523  Moraea polystachya S. Morgan 1984-11-2 s.n. Riverside University of California, Riverside. Botanic Garden. 0 Comment
  RSA483257  Muhlenbergia asperifolia H. de Forest 1932-8-28 15809 Riverside Beaumont-Banning Pass. First spring between Colorado Desert and San Jacinto; close to spring Comment
  UC39903  Muhlenbergia filiformis H. M. Hall July, 1901 2359 Riverside meadows and bogs San Jacinto Mountains, Tauquitz Valley 2438 Comment
  UC39904  Muhlenbergia filiformis H. M. Hall June, 1901 2290 Riverside along water courses San Jacinto Mountains, vicinity of Strawberry Valley 1615 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
  UCR19373  Muhlenbergia rigens John C. Roos 1965-6-30 s.n. Riverside Santa Ana Mtns., Ortega Hwy Comment
  RSA750555  Muilla maritima Scott D. White, Justin M. Wood 2009-5-21 12882 Riverside Garner Valley, 0.5 miles NW of Morris Ranch Rd (Kenworthy Ranger Station). 1372 Comment
  SBBG53764  Muilla maritima S. Boyd 1980-6-4 Riverside Harford Springs County Park, NW corner of the Gavilan Plateau, between the Juniper Grove Rd and stream Comment
  UCR116964  Muilla maritima A. C. Sanders, T. B. Salvato 2001-5-3 24089 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  UCR22040  Muilla maritima Steve Boyd 1980-5-11 240 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, northwest corner of the Gavilan Plateau. East of trailer park, east side of Gavilan Road 625 Comment
  UCR84604  Muilla maritima Scott D. White 1994-4-21 1953 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  SD217159  Myriopteris covillei Steve Boyd, Tim Ross & Laurel Arnseth 1990-3-30 3968 Riverside Vail Lake area, westerly draining canyon at north base of Big Oak Mountain 640 Comment
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Apr 17 2020
  RSA601653  Najas guadalupensis L. C. Wheeler 1957-11-30 7275 Riverside Coachella drainage ditch, ca. 1.5 mi. south southeast of Thermal. Comment
  SBBG9291  Nama demissa H. and M. Dearing 1941-4-9 4629 Riverside 8 mi S of Mecca Comment
  UCSB5301  Nama demissa Beeks, Richard 1952-4-4 Riverside 2.15 miles W. of junction of U.S. 60, U.S. 40, and U.S. 195 Comment
  RSA718304  Nama demissa Michael Honer, L. Hulse 2004-4-2 1886 Riverside East Wide Canyon; near MWD aqueduct, appx 2 mi. N of Dillon Rd. 488 Comment
  RSA78477  Nama demissa var. deserti Verne Grant, Alva Grant 1952-3-20 17507 Riverside On road from Palm Springs to Santa Rosa Mountains a few miles south of intersection with Indio Road. 305 Comment
  POM1092  Nassella cernua F. L. Robinson, Crocker 1916-3-29 711 Riverside Santa Ana Mts. Comment
  RSA757987  Nassella cernua Doug Goldman 2005-5-11 3289 Riverside Garner Valley, just north of the village of Thomas Mountain, about 0.1 miles northwest of Morris Ranch Road and about 0.2 miles northeast of Route 74. San Bernardino National Forest. 1378 Comment
  POM116534  Nassella pulchra Marcus E. Jones 1903-5-11 s.n. Riverside Banning. 701 Comment
  SEINET238934  Navarretia atractyloides A. C. Sanders, T. B. Salvato 2000-5-25 23425 Riverside Menifee Valley: S of Newport Rd. 2 miles due east of railroad Canyon Lake (Romoland 7.5' Q.) 439 Comment
  UCR121209  Navarretia atractyloides D. E. Bramlet 1990-4-27 1994 Riverside Peninsular Range; Perris-Aguanga basin region, ridgeline south of Diamond Valley, NW of Crown Valley, 600 ft. west of access road 665 Comment
  UCR19167  Navarretia atractyloides John C. Roos 1950-5-27 4818 Riverside Peninsular Range, Hills NE of summit of Reche Canyon 762 Comment
  HSC85261  Nemacladus longiflorus Steve Boyd 1986-4-22 1753 Riverside Stable alluvial benches of Indian Wash just S of Interstate Hwy 15 Comment
  UCR146262  Nemacladus longiflorus var. longiflorus Orlando Mistretta, Mark A. Elvin 1995-6-19 1782 Riverside Peninsular Ranges; San Jacinto Mountains, Highway 74 and Pacific Crest Trail 1494 Comment
  RSA775292  Nemacladus orientalis Duncan S. Bell 2011-3-20 2065 Riverside Orocopia Mountains; on the southeast side of the mountain range near Red Canyon. 429 Comment
  SBBG18216  Nemacladus pinnatifidus M. A. Piehl 1963-6-2 63547 Riverside Hwy 74, ca. 1.2 mi W of Mountain Center 1341 Comment
  RSA543890  Nemacladus ramosissimus Steve Boyd 1991-5-20 6260 Riverside Temescal Canyon, S flank of Alberhill Mtn, W end adjacent to old clay mine area. 426 Comment
  JEPS7671  Nemacladus rubescens Frank W. Peirson 1926-1-31 6486 Riverside about 2 mi from station on Mecca Road, Dos Palmas; Colorado Desert, Dos Palmas Comment
  RSA777733  Nemacladus sigmoideus J. Andre, G. L. Clifton 2011-2-22 17450 Riverside Mecca Hills; along Box Canyon Road, 10.3 miles NE of town of Mecca 219 Comment
  UC1563074  Nemacladus tenuis var. aliformis Steve Boyd and Orlando Mistretta 1986-3-13 1460 Riverside ne of Desert Center (w side of Palen Mts, upper bajada at base of range); Palen Mts. Comment
  UCR279599  Nemacladus tenuis var. aliformis A. C. Sanders, Jim Malusa 2017-3-28 43138 Riverside Sonoran (Colorado) Desert, Northern edge of Chocolate Mountains, along Salt Creek at edge of Navy Aerial Gunnery Range, vicinity of Clemons Well site, between wash and old Kaiser RR 314 Comment
  RSA421336  Nemophila menziesii Elbert Benjamine 1929-5-18 220 Riverside San Jacinto Mt. 1677 Comment
  UCR172809  Nemophila menziesii Abby Sirulnik 2000-4-13 10 Riverside Peninsular Ranges, Southwestern Riverside County Multispecies Reserve, c. 3 mi NE of Skinner Reservoir 610 Comment
  UCR49231  Nemophila menziesii Steve Boyd 1980-5-8 1610 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 625 Comment
  RSA0105076  Nemophila menziesii var. menziesii Daphne K. Christopher, Hannah Stevens 2003-4-4 97 Riverside UC Riverside, Motte Rimrock Reserve. Off Sage Rd. 536 Comment
  RSA770697  Nemophila menziesii var. menziesii Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4803 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 610 Comment
  RSA511361  Nemophila pedunculata B. Pitzer, E. Misquez 1988-3-20 666 Riverside Cleveland National Forest, San Juan Loop Trail, ca. 4 mi. W of El Cariso Village, just across the hwy from Ortega Parks Store. 549 Comment
  UCR12273  Nicotiana clevelandii Art Whistler 1966-3-26 s.n. Riverside Colorado Desert/ Santa Rosa Mtns, alluvial fan below Deep Canyon, 1 mi. from the Boyd Desert Research Center. Comment
  UCR20745  Nicotiana glauca A. C. Sanders, Steve Boyd 1980-5-2 1441 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  JOTR31883  Nicotiana obtusifolia La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2135 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Rockhouse Canyon; steep-walled canyon and sandy wash along an old road Comment
  SBBG6607  Nicotiana obtusifolia H. and M. Dearing 1936-12-26 1702 Riverside foot of grade Palms to Pines Hwy Comment
  UCR202039  Nicotiana obtusifolia Denise Woodard, Gilbert Goodlet 1997-3-11 s.n. Riverside Sonoran (Colorado) Desert, base of Santa Rosa Mtns. at mouth of Cathedral Canyon, border between Rancho Mirage and Cathedral City, site of proposed Ritz-Carlton Rancho Mirage/ Cathedral Canyon Golf Course 305 Comment
  SEINET3077688 Image available Nicotiana quadrivalvis Rodney Hendrick 1965-5-2 Riverside 6 mi west Aguanga on Hwy 71. Comment
  UCR116679  Nicotiana quadrivalvis A. C. Sanders, Chet McGaugh 2001-7-26 24471 Riverside Perris-Aguanga Basin region, Mockingbird Creek, beside Harley John Rd. just above Mockingbird Canyon Rd., Woodcrest area, Riverside 427 Comment
  LA29048  Nolina parryi Mary V. Hood; 1939-12-30 39- 160 k* Riverside Palms to Pines Highway 1158 Comment
  POM310592  Nolina parryi G. Mansfield-Jones 1956-04 s.n. Riverside Joshua Tree National Monument, on road to Juniper Flats. 1463 Comment
  RSA58893  Nolina parryi Philip A. Munz, Percy C. Everett 1950-6-23 14910 Riverside 2 miles NW of Pipe Creek, Hemet Valley, San Jacinto Mountains 1402 Comment
  UCR152571  Nolina parryi James C. Dice 1985-6-13 617 Riverside Peninsular Range; San Jacinto Mtns., SE portion of Thomas Mountain, c. 4 km south of Kenworthy Station and community of Thomas Mountain 1525 Comment
  CLARK-A1528-3582  Notholaena newberryi John C. Roos 1937-5-2 1412 Riverside La Sierra Comment
  UCR20674  Nothoscordum gracile Frank C. Vasek 1980-5-4 s.n. Riverside Riverside. Residence of F.C. Vasek at 636 Sandalwood Comment
  CHSC109709  Nuttallanthus canadensis Scott D. White 2003-3-21 8797 Riverside Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 152 Comment
  IRVC26251  Oenothera californica A. C. Sanders, D. Malueg 2003-5-8 26562 Riverside San Jacinto Riverbottom, north of San Jacinto and SE of State St. San Jacinto Valley 465 Comment
  RSA146103  Oenothera californica subsp. californica Peter H. Raven 1959-5-18 14244 Riverside Hemet Meadows, San Jacinto Mtns. Comment
  UC422969  Oenothera californica subsp. californica F. M. Reed 1905-10-2 260 Riverside 547 Chicago Avenue Riverside Comment
  CSUSB211  Oenothera deltoides Elliott Helm 1975-5-23 Riverside Colorado Desert 3 miles north of 29 Palms, off highway 177, Colorado Desert. 304 Comment
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Dec 4 2014
  POM66421  Oenothera deltoides subsp. deltoides Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center. Chuckwalla Valley. Comment
  RSA162846  Oenothera elata subsp. hirsutissima J. D. Olmsted 1959-8-22 s.n. Riverside Strawberry Creek just above crossing S of civic center in Idyllwild. San Jacinto Mountains. Comment
  RSA737120  Oenothera elata subsp. hirsutissima Justin M. Wood 2008-10-15 186 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  UCR133660  Olea europaea Chet McGaugh 2003-5-10 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  JEPS20749  Oligomeris linifolia Roxana S. Ferris and Rimo Bacigalupi Mar 19 1958-Mar 25 1958 13242 Riverside Highway U.S. 95, 11.3 mi n Blythe (in wash arising in Big Maria Mts.); in wash arising in Big Maria Mts. Comment
  SBBG4040  Oligomeris linifolia H. and M. Dearing 1941-4-9 4626 Riverside near Mecca Comment
  UCD170859  Olneya tesota C. J. Minar 1994-5-7 06 Riverside Sonoran (Colorado) Desert, Coachella Valley, east of Salton Sea near Dos Palmas Oasis. -27 Comment
  SEINET9259366  Oncosiphon piluliferum R. E. Riefner Jr. 2012-1 12 -63 Riverside City of Hemet, North of Florida Ave. and S of W. Devonshire Ave., and E. of Meyers St. 461 Comment
  RSA0097547  Opuntia basilaris Marc A. Baker, Michelle Cloud-Hughes 2015-7-12 18413 Riverside San Gorgonio River, 2 km SW of Cabazon, 27 km WNW of central Palm Springs, 14 km WSW of the historical site of Whitewater. 513 Comment
  RSA709919  Opuntia basilaris Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4635 Riverside Along Palen Pass Road, near Packard Well, S end of Granite Mountains. 502 Comment
  SEINET10678633  Opuntia erinacea var. erinacea Tracy Scott, Andrew Townesmith; Karen M. Meyer 2007-3-18 Scott 139 Riverside San Bernardino National Forest. San Jacinto Ranger District, about 0.2 mi. along Pinon Flats Transfer Station Rd. off Rte. 74. 1228 Comment
  SD142828  Opuntia phaeacantha Judy Gibson 1998-7-29 192 Riverside South of Hemet, weedy road edge, in sand. (IPB 9/07) Comment
  POM59001  Opuntia vaseyi L. R. Abrams 1908-07 s.n. Riverside Elsinore. Comment
  JEPS85946  Orobanche cooperi L. R. Heckard with R. Bacigalupi 1977-3-15 4520 Riverside ca 1 mi ne Hayfield Lake; s end Eagle Mountains, Chuckwalla Valley 411 Comment
  UC1608216  Osmadenia tenella Steve Boyd, Tim Ross 1992-6-10 7626 Riverside an isolated area topping the ridge system due west of the junction of Tenaja Road (7S01) and Los Alamos Road ((7S04) Potrero Escondido; Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar Comment
  UC218228  Osmorhiza berteroi P. A. Munz 1922-9-6 6371 Riverside Round Valley San Jacinto Mts. 2712 Comment
  SD144084  Osmorhiza brachypoda Scott D. White 1994-4-23 2029 Riverside Millard Canyon, ca 8 air mi N of Cabazon: USFS Rd 2S05.2 ca. 0.3 mi S of jtn 2S05.2 and 2S05B 1299 Comment
  UCR158337  Oxalis pes-caprae A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30074 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
  RSA392900  Oxytheca emarginata Anstruther Davidson 1921-9-1 s.n. Riverside Mt. Tahquitz Comment
  RSA78288  Oxytheca trilobata P. A. Munz, E. K. Balls 1952-8-21 17967 Riverside Hamilton Creek, s.e. part of San Jacinto Mts. 1372 Comment
  RSA652108  Paeonia californica Don Fells 1948-2-15 s.n. Riverside 1/3 mile SE from 6th and California, Norco. 229 Comment
  CAS-BOT-BC327909  Palafoxia arida F. H. Billings 1926-2-6 20 Riverside Palm Springs Comment
  POM363737  Palafoxia arida var. arida Anstruther Davidson 1893-4-10 s.n. Riverside Palm Springs. Comment
  POM363752  Palafoxia arida var. arida A. N. Dunn, A. M. Martin 1932-3-26 s.n. Riverside Box Canon. [Canyon] Comment
  RSA314487  Palafoxia arida var. arida R. F. Thorne, Kay Wright, R. K. Benjamin 1982-10-8 55360 Riverside Mouth of Whitewater Canyon near Whitewater Post Office in sandy wash between old and new highway bridges and along Whitewater River. 412 Comment
  UC61508  Palafoxia arida var. arida L. D. Copeland 1904-5-5 Riverside Palm Springs Comment
  UCR234807  Palafoxia arida var. arida Jim Andre, Glenn L. Clifton 2011-2-22 17470 Riverside Coachella Valley, just south of Hwy I-10 at Amtrak train station parking , just west of North Indian Canyon Drive 186 Comment
  UCR92427  Palafoxia arida var. arida E. R. Blakley 1993-5-20 7566 Riverside Sonoran (Colorado) Desert, W of roadside rest area at jct of Hwy 19 and road S to Wiley's Well, c. 15 mi west of city of Blythe Comment
  POM116060  Panicum urvilleanum Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  SD126619  Parietaria hespera var. californica Ed LaRue 1989-4-12 Riverside Midway between Mead Valley and March Air Force Base. 518 Comment
  RSA0125268  Parietaria hespera var. hespera Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8758 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting on the Martinez Slide to the north of Toro Canyon, approximately 4.5 air miles east northeast of the summit of Martinez Mountain. 230 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
  POM46828  Parietaria pensylvanica Mary F. Spencer 1920-4-7 10463 Riverside Palm Canyon. 213 Comment
  SD216479  Parkinsonia florida Carol R. Annable 1995-3-10 2262 Riverside 1.6 kilometers south of Lake Cahuilla County Park. Comment
  UCR111981  Parkinsonia florida A. C. Sanders, T. B. Salvato, Mitch Provance 2000-4-25 23368 Riverside Coachella Valley, east side of Coachella Canal between I-10 and Ave. 52, east of Coachella 24 Comment
  RSA134370  Pectis papposa L. S. Rose 1959-1-8 59004 Riverside La Tuna Canyon, along La Tuna Canyon Road.La Quinta. 15 Comment
  JOTR29252  Pectis papposa var. papposa La Doux, Tasha 2005-8-17 1533 Riverside Joshua Tree National Park. Queen Valley, along Bighorn Pass Road 1321 Comment
  UCR214130  Pectocarya anisocarpa A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37728 Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 518 Comment
  SBBG92929  Pectocarya heterocarpa D. Charlton 1988-2-18 1147 Riverside Fargo Cyn Rd to Cottonwood Wash, parallel to Interstate 10, ca. 1 mi E of jct of Dillon Rd and Fargo Cyn Rd 609 Comment
  CSUSB746  Pectocarya linearis Frank Aubrey 1959-4-12 Riverside 150 feet west of pond northeast of Webber Hall on UCR (University of California, Riverside) campus. 304 Comment
  RSA610586  Pectocarya linearis R. S. Woglum 1938-5-1 1605 A Riverside Peninsular Ranges: South of Hemet; San Jacinto Valley west of San Jacinto Mountains. Comment
  UCR126438  Pectocarya linearis T. B. Salvato, A. C. Sanders, Mitch Provance et al. 2000-4-30 65 Riverside Riverside, Box Springs Mtns. along road to radio towers from reserve parking lot 854 Comment
  UCR156473  Pectocarya linearis T. B. Salvato, A. C. Sanders 2005-5-17 888 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
  UCR88575  Pectocarya linearis A. C. Sanders, J. C. Lyman 1995-4-16 16564 Riverside San Bernardino Valley, Glen Avon: sand dune area on N slope of the Jurupa Hills (draining toward Fontana), Pyrite St. Canyon 335 Comment
  SD144478  Pectocarya penicillata A. C. Sanders 1997-3-1 19709 Riverside Box Springs Mtns: Coyote Hill (Bench Mark Versity, 1386 Ft.) and ridge S and SE of the UCR Botanic Garden. 427 Comment
  UCR47802  Pectocarya penicillata F. R. Fosberg 1932-5-9 10639 Riverside St. Johns Grade near Hemet 770 Comment
  UCR97498  Pectocarya penicillata A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19873 Riverside Lake Skinner area, lower Rawson Canyon, along road NE of Skinner Lake 457 Comment
  UCR41528  Pectocarya peninsularis A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi west of Hayfield Lake, 2 mi SW of the pumping station on a small cutoff road from Hayfield Rd to the dirt road to the Colorado River Aqueduct 427 Comment
  CDA40690  Pectocarya platycarpa K. Frick 1962-3-14 s.n. Riverside South end of Hemet Valley. 0 Comment
  CLARK-A1045-85  Pectocarya platycarpa George K. Helmkamp 1978-4-27 Riverside San Jacinto Mountains .5 mile [north northwest] from CA Highway 74; Hemet 15'Q Comment
  RSA0028394  Pectocarya platycarpa Duncan S. Bell, The Desert Survivors Organization 2011-4-8 2193 Riverside Northwest section of the Granite Mountains; approximately 1 air mile southeast of junction of Highway 62 and Highway 177. 470 Comment
  RSA703402  Pectocarya platycarpa LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda Worlow 2005-2-17 1454 Riverside Chocolate-Chuckwalla Mountains region: Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  RSA726537  Pectocarya platycarpa Naomi Fraga, Sarah J. De Groot, Lisa Rojas, Lelenad Lubinsky 2005-2-10 1429 Riverside Along Palen Road near Hwy 177. 170 Comment
  SEINET9300461  Pectocarya platycarpa Unknown 1976-5-3 Riverside Red Mountain Road. Comment
  UCR103272  Pectocarya recurvata B. G. Pitzer, O. F. Clarke, S. Reed, G. Ruiz 1998-3-7 3576 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
  UCR279377  Pectocarya recurvata A. C. Sanders, Jim Malusa 2017-3-24 42960 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, large wash south of Bradshaw Trail, c. 11 km SE of Gasline Rd. 729 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
  RSA798597  Pellaea andromedifolia R. F. Thorne, E. W. Lathrop 1977-5-18 49755 Riverside Santa Ana Mountains: Bear Spring [east slope of Santiago Peak] Comment
  UCR84214  Pellaea andromedifolia A. C. Sanders, M. Jacobsmyer, C. L. Sanders 1995-2-5 15906 Riverside Western Colorado Desert/ San Bernardino Mtns., Whitewater Canyon, between Bonnie Bell & the fish hatchery 550 Comment
  POM120722  Pellaea andromedifolia var. andromedifolia Marcus E. Jones 1903-5-11 s.n. Riverside Banning. 701 Comment
  UCSC001083  Pellaea mucronata Peter Kamb 1947-2-1 452 Riverside Hall Canyon, San Jacinto Mts. 1158 Comment
  UCR207574  Pennisetum clandestinum O. F. Clarke 2004-6-18 s.n. Riverside Peninsuar Range; Box Springs Mtns. Foothills, Riverside, UCR campus, south of the Humanities Theater 324 Comment
  LA105726  Pennisetum setaceum Dave Hawks; 1986-4-17 sn Riverside Whitewater River channel, 1 mi S of Hwy I-10 and 2 mi. W of Indian Ave, 259 Comment
  JEPS6884  Penstemon californicus Munz and Johnston 1922-5-21 5445 Riverside San Jacinto Mountains, Kenworthy, Hemet Valley Hemet Valley; San Jacinto Mountains, Kenworthy; Kenworthy, Hemet Valley, San Jacinto Mts. 1371 Comment
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Mar 25 2011
  RSA750550  Penstemon californicus Scott D. White, Justin M. Wood 2009-5-21 12872 Riverside San Jacinto Mountains: Garner Valley, 0.5 miles NW of Morris Ranch Rd (Kenworthy Ranger Station). 1372 Comment
  NY583773  Penstemon centranthifolius C. B. Wolf 1938-6-11 9418 Riverside San Jacinto Mountains, Palms to Pines Highway, 1 1/2 miles west of junction to Anza 1219.2 Comment
  RSA683090  Penstemon centranthifolius Scott D. White, T. B. Salvato, L. V. DeMarco, Jessica Christian 2001-6-30 8662 Riverside San Jacinto Mountains: Idyllwild area; Strawberry Fuelbreak between Inspiration Point and Strawberry Creek. i.e., southwest terminus of Double View Dr. west to creek. 1402 Comment
  UCR98770  Penstemon centranthifolius Scott D. White 1996-8-1 4454 Riverside San Jacinto Mountains, Idyllwild area north of Isomata along USFS Road 5S24.1 1646 Comment
  CAS-BOT-BC265291  Penstemon clevelandii subsp. connatus Philip A. Munz 1937-5-30 15097 Riverside N of Vandeventer Flat, Santa Rosa Mountains 1676 Comment
  UCR13400  Penstemon clevelandii subsp. connatus William A. Hunt 1972-4-29 720429- 01 Riverside San Jacinto Mtns., North face, Snow Creek, after the Ismus and before the first falls 1524 Comment
  POM11244  Penstemon labrosus Philip A. Munz 1922-9-7 6454 Riverside San Jacinto Peak 3049 Comment
  RSA402125  Penstemon labrosus Christopher Davidson 1978-6-15 7386 Riverside Santa Rosa Mountains. Santa Rosa Peak. Trail to the top. 2409 Comment
  SBBG54340  Penstemon labrosus C. Davidson 1978-6-15 7386 Riverside trail to top, Santa Rosa Peak 2407 Comment
  CHSC1884  Penstemon pseudospectabilis V. Holt 1942-3-28 Riverside Blythe. 80 Comment
  UCR117713  Penstemon spectabilis Mitch Provance 1998-6-11 682 Riverside Jurupa Mountains, 'Twin Canyons', south of the historical community known as Declezville; housing development now known as Southridge 320 Comment
  RSA0014938  Penstemon spectabilis var. spectabilis LeRoy Gross, Evan Meyer 2013-5-21 6121 Riverside West Ridge, south of Double View Drive and Deer Foot Lane. Southwest from Idyllwild, and Strawberry Valley., Started near 33.72895N, 116.73415W. And ended at Inspiration Point, near [coordinates given.] 1631 Comment
  RSA619535  Penstemon spectabilis var. spectabilis D. L. Banks 1997-5-5 1984 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pechanga Creek, along the south fork of Pechanga Creek. 396 Comment
  RSA171363  Pentachaeta aurea J. D. Olmsted 1962-5-3 3514 Riverside Intersection of Pines to Palms Hwy and south access road to Thomas Moutain 1387 Comment
  RSA720465  Pentachaeta aurea Naomi Fraga, Tim Thibault 2006-5-16 1671 Riverside ca. 2.5 miles up Morris Ranch Road near its intersection with a locked FS road west of Goff Flat. 1585 Comment
  CAS-BOT-BC71576  Pentagramma triangularis subsp. maxonii Lewis S. Rose 1945-12-28 45339 Riverside Tahquitz Canyon, Palm Springs 213 Comment
  RSA0070718  Pentagramma triangularis subsp. triangularis Steve Boyd, Aydee Virgen 2004-4-13 10893 Riverside San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon. Comment
  UC63690  Perideridia parishii subsp. latifolia H. M. Hall 1897-8-16 851 Riverside San Jacinto Mt.; bogs and meadows 2499 Comment
  UCSB3810  Peritoma arborea Long, Frances 1939-12-30 Riverside Palm Springs Comment
  JOTR31861  Peritoma arborea var. arborea La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2118 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Fargo Canyon; where 4x4 road meets southwest park boundary; steep-walled canyon 533 Comment
  UCD134887  Perityle emoryi P. C. Everett; E. K. Balls 1958-4-29 23014 Riverside U.S. Highway 60/70, Indio to Blythe, 1 mile west of Cactus City. 548 Comment
  UCR224306  Perityle emoryi Justin M. Wood, Jamie Miner 2010-4-29 1542 Riverside Coachella Velley, Cathedral City, 0.5 mi southwest of intersection of East Palm Canyon Drive and Cathedral Canyon Wash 160 Comment
  UCR260245  Perityle emoryi A. C. Sanders, Jim Malusa 2015-3-10 41387 Riverside Sonoran (Colorado) Desert, north end of Chocolate Mountains, eastern canyon at Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range 611 Comment
  UCR86202  Petalonyx thurberi A. C. Sanders 1995-5-23 17117 Riverside Sonoran (Colorado) Desert, Coachella Valley, alluvial fans below the Santa Rosa Mountains, north of Toro Canyon., west of Monroe St., and south of Avenue 62 91 Comment
  SEINET11978709  Petalonyx thurberi Unknown 1936-1 12791 Riverside Colorado Desert N of Palm Springs Comment
  POM13423  Petunia parviflora Philip A. Munz, I. M. Johnston 1922-5-5 5156 Riverside Mystic Lake, near Moreno. Comment
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Mar 20 2011
  RSA425012  Petunia parviflora J. C. Roos 1952-5-28 5728 Riverside San Jacinto River bottomland 1 mile south-east of Perris. 427 Comment
  RSA703736  Peucephyllum schottii LeRoy Gross 2005-3-3 1568 Riverside Palen Mountains, south side. Near end of old prospect road. Near 33.71244N, 115.11171W. to 33.72053N, 115.11051W 207 Comment
  UCR167447  Peucephyllum schottii 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
  UCR218316  Peucephyllum schottii Jim Andre, T. La Doux 2009-3-10 11248 Riverside Joshua Tree National Park, south end of the Cottonwood Mountains near Pinkham Wash, just north of aqueduct just inside JTNP boundary, c. 7 miles west of south entrance into park at Cottonwood 542 Comment
  RSA94111  Peucephyllum schottii F. W. Peirson 1918-03 1244 Riverside SE side of desert embankment at Palm Springs and almost opposite Andreas Canyon. Comment
  UCD166239  Phacelia Jack Major 1962-4-16 774 -bd Riverside Along California Hwy 74, below Pinyon Flat toward Palm Desert. (Exact location unknown. Coordinates estimated by label maker.) 1220 Comment
  JEPS2205  Phacelia campanularia subsp. vasiformis W. L. Jepson 12551 Riverside n Mecca; Colorado Desert, Eagle Mts., Cottonwood Spr. 487 Comment
  RSA160528  Phacelia campanularia subsp. vasiformis J. D. Olmsted 1958-3-29 83 Riverside 24 miles N of Jct between Cottonwood Pass and Cottonwood Spring Roads, Joshua Tree. 991 Comment
  RSA81018  Phacelia campanularia subsp. vasiformis G. R. Campbell 1952-4-6 18406 Riverside Joshua Tree National Monument. 1.5 miles toward Cottonwood Springs, off road to 29 Palms 976 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
  CSUSB137  Phacelia crenulata R. A. Clark 1966-3-5 3566 6 Riverside 5 miles east of Mecca, Ca., on State Highway 195, on man-made dike. -57 Comment
  SD224995  Phacelia crenulata A. C. Sanders, G. K. Helmkamp & P. MacKay 1995-3-12 16037 Riverside Coachella Valley: Indio, just S of the Whitewater River Channel at Auto Center Dr. -7 Comment
  SEINET9296429  Phacelia crenulata Unknown 1976-5-4 Riverside Red Mountain Road. Comment
  UCR104033  Phacelia crenulata George K. Helmkamp, E. A. Helmkamp 1998-2-18 2736 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UCR41275  Phacelia crenulata B. G. Pitzer 1986-2-9 0004 Riverside Sonoran (Colorado) Desert, Santa Rosa Mountains: Martinez Canyon, SW of Valerie Jean, on upper fan, c. 1 mi east of mouth of canyon 122 Comment
  RSA0031421  Phacelia crenulata var. ambigua Duncan S. Bell, Kim Clark, Bob Ellis, Pam McKay, Jim Pittman, Gene Ratcliff, Ed Schlegel, Felicia Sirchia 2013-2-24 4470 Riverside Orocopia Mountains; south end of range, north of the Coachella Canal, approximately 3 air miles northeast of Dos Palmas Springs. 182 Comment
  SEINET3091710 Image available Phacelia crenulata var. ambigua G. Helmkamp, E. Helmkamp 1998-1-17 2541 Riverside Box Canyon Road ENE of Mecca and on the north side of the Coachella Canal. 0 Comment
  UC881060  Phacelia crenulata var. ambigua Aven Nelson and Ruth A. Nelson 1939-3-29 3332 Riverside near Hidden Springs (near Mecca) Comment
  UCR244410  Phacelia crenulata var. ambigua Jim Andre 2012-4-16 20905 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park; along Cottonwood Springs Rd, 3.1 mi. north of south entrance, 4.1 mi. north of I-10 788 Comment
  UCR244908  Phacelia crenulata var. ambigua Jim Andre 2012-3-19 21376 Riverside Sonoran (Colorado) Desert, Palen Mountains, along Palen Pass Rd at Palen Pass 383 Comment
  GMDRC9817  Phacelia crenulata var. minutiflora J. M. Andre 2017-3-1 38055 Riverside Coxcomb Mountains: north of Hwy 177 at JTNP boundary, 10.1 mi. NE of Desert Center (I-10) 159 Comment
  CSUSB132  Phacelia distans Karen Cook 1966-5-16 Riverside Santa Ana River bottom, east of Van Buren Ave. in city of Riverside. 182 Comment
  JOTR31159  Phacelia distans La Doux, Tasha 2009-6-3 1867 Riverside Joshua Tree National Park. (Stop 5): Little San Bernardino Mountains, Covington Flats Area, lower slopes, just above parking area for lower Covington Flats 1460 Comment
  RSA658860  Phacelia distans J. C. Roos 1966-3-20 s.n. Riverside 2 miles SE of Desert Center. Comment
  RSA772014  Phacelia distans Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4956 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 1-2 miles above Whitewater Visitor Center (Whitewater Trout Farm)., Between N34.01961, W116.68175 and N34.01041 and W116.67141. 823 Comment
  RSA777678  Phacelia distans Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 982 Riverside Iron Mountains, on southwest side of mountains in drainage on either side of the road 419 Comment
  RSA80989  Phacelia distans G. R. Campbell 1952-4-5 18375 Riverside Colorado Desert, road leading from Highway 60 to 29 Palms [Hwy 62], at junction to Desert Hot Springs 762 Comment
  SD152827  Phacelia distans Steve Boyd, Orlando Mistretta 1992-4-23 7069 Riverside San Mateo Canyon Wilderness Area; along San Mateo Creek from Riverside County line following San Mateo Trail upstream to the confluence with Bluewater Canyon. 244 Comment
  SD178224  Phacelia distans A. C. Sanders 2004-5-12 27861 Riverside Elsinore Basin Region: Walker Canyon at north foot of Alberhill Mountain, Temescal Creek. In open area on gentle slope at foot of hills. 377 Comment
  UC702030  Phacelia distans Frank W. Gould 1943-4-18 2147 Riverside near Banning (on the Idlewild cutoff) Comment
  UC963829  Phacelia fremontii H. K. Sharsmith 1952-4-7 4043 Riverside Hidden Valley Campground Mojave Desert, Joshua Tree National Monument 1341 Comment
  UCSB54159  Phacelia fremontii McKinley, Gale 1985-3-27 Riverside 1/2 mile west of Ryan campground in Joshua Tree National Monument 1280 Comment
  HSC101580  Phacelia minor Steve Boyd, Susan Jett 2008-3-20 11826 Riverside Peninsular Ranges; Santa Ana Mountains region: eastern flank of the range along El Cariso Trunk Trail, ca. 0.5 mi. north of Highway 74 732 Comment
  RSA659353  Phacelia minor P. Shirokawa 1998-5-15 29 Riverside Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  UC1007227  Phacelia minor Philip A. Munz 1940-2-1 15655 Riverside 2 mi n Banning-Indio boulevard; Whitewater Canyon Comment
  RSA351343  Phacelia parryi Robert F. Thorne, Walter Wisura, E. W. Lathrop, S. Meury 1985-5-18 60626 Riverside Santa Rosa Plateau: Burned-over chapparral along Clinton Keith Road, near base of plateau. 427 Comment
  UCR38115  Phacelia pedicellata J. M. Stewart 1985-3-16 8511 Riverside Sonoran (Colorado) Desert/Santa Rosa Mtns., Santa Rosa Mtns., Agua Alta Canyon off Martinez Canyon 732 Comment
  UCR137031  Phacelia ramosissima A. C. Sanders 2004-5-5 27783 Riverside Gavilan Hills, route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, c. 0.25 mi. NNW of Harford Spring, c. 1.2 mi. NE of Gavilan Peak 579 Comment
  RSA74702  Phacelia rotundifolia E. C. Jaeger 1922-3-22 5459 Riverside Murray Canyon, Near Palm Springs. Comment
  RSA779695  Phacelia rotundifolia Duncan S. Bell 2010-4-2 706 Riverside Arica Mountains: collecting along the mountains ridgeline, approximately 0.75 air mile north of summit. 592 Comment
  RSA764129  Phacelia suaveolens subsp. keckii L. M. Prince, Duncan S. Bell 2009-6-17 572 Riverside Cleveland National Forest Comment
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Jul 21 2018
  UC699662  Phacelia suaveolens var. keckii John Thomas Howell 1931-5-30 6611 Riverside Santiago Peak Santa Ana Mts. (type locality) 1219 Comment
  UCR266364  Phalaris lemmonii D. E. Bramlet 2005-5-4 3845 Riverside Perris-Aguanga Basin Region, San Jacinto Valley, Winchester, along railroad tracks 454 Comment
  UCR75533  Phalaris lemmonii A. C. Sanders 1993-5-12 14001 Riverside San Jacinto Valley, Hemet, SW corner of intersection of Florida Ave (Hwy 74) & Warren Rd., between new San Diego Aqueduct and Warren Road 460 Comment
  RSA595316  Phalaris minor D. L. Banks, Victor Steinmann 1996-4-20 890 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; At the junction of Los Caballos Road and Hwy. 79. 377 Comment
  RSA467439  Phleum alpinum M. B. Dunkle 1933-7-22 3746 Riverside Tahquitz Valley. San Jacinto Mountains. 2317 Comment
  JOTR32531C  Phoenix dactylifera La Doux, Tasha, M. Harding, M. Wheeler, T. Herskovits 2011-4-14 2540 Riverside Joshua Tree National Park. southwest Eagle Mountains; steep rocky drainage approx. 1.5mi east of Cottonwood Canyon and 1.5mi north of park boundary 815 Comment
  SD181475  Pholistoma auritum Scott D. White, Pam DeVries 2000-4-25 7725 Riverside Temescal Valley, eastern foothills of Santa Ana Mountains just above citrus groves; Corona South [quad]. 412 Comment
  UCR17965  Pholistoma membranaceum A. C. Sanders 1976-4-20 00980 Riverside San Jacinto/Santa Rosa Mtns., 9.5 mi. SE of Anza in White Wash, a tributary of Coyote Canyon 976 Comment
  CHSC83682  Phoradendron californicum John Dittes 2002-1-5 2 -47 Riverside Mojave Desert; ca. 11 air-miles south-southwest of Twentynine Palms, ca. 0.8 mile northwest of Hidden Valley Campground, ca. 1 mile east of Lost Horse Ranger Station, base of ridge west of Loop Road. 1286 Comment
  LA209835  Phoradendron californicum F. M. Scott; April 1928 sn Riverside Thousand Palms Comment
  POM48145  Phoradendron californicum S. B. Parish 1920-3-26 20010 Riverside Indian Wells. Comment
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Mar 12 2011
  CAS-BOT-BC141176  Phoradendron serotinum subsp. macrophyllum A. C. Sanders; J. Goetzen 1996-5-1 18141 Riverside San Bernardino Mtns: Morongo Indian Reservation, along dirt road in Hathaway Crk. Cyn., N of Banning 914 Comment
  POM49490  Phoradendron villosum Philip A. Munz 1924-7-28 8813 Riverside Pine Flats. 1738 Comment
  RSA0026182  Phoradendron villosum John F. Emmel 1997-8-3 1521 Riverside San Jacinto Mts.; Garner Valley; ridgetop 1.1-1.2 air miles north of junction Hwy. 74 and Morris Ranch Road. 1402 Comment
  JEPS8984  Physalis crassifolia John Thomas Howell 1928-1-29 3297 Riverside Painted Canyon; Colorado Desert Comment
  JOTR36018  Physalis crassifolia Harding, Mitzi, T. Herskovits 2012-3-16 225 Riverside Joshua Tree National Park. Eagle Mountains, Cholla Wash Comment
  RSA423827  Physalis crassifolia E. C. Jaeger 1922-4-9 821 Riverside Chucawalla Well, Colorado Desert of California. 259 Comment
  UCR26585  Physalis crassifolia W. C. Anderson 1968-4-22 680422 10 Riverside Sonoran (Colorado) Desert, 2 mi. south of Cottonwood Guard Station, Joshua Tree National Monument [now Park] Comment
  RSA278977  Physalis crassifolia var. crassifolia Barry A. Prigge, L. Martinez 1978-3-23 2429 Riverside NW Colorado desert, 1.2 miles E of Sky Valley near Dillon X Skyridge Roads 335 Comment
  RSA0035037  Physalis hederifolia Lee Haines 1952-4-6 s.n. Riverside Box Canyon. [county not specified] Comment
  UCR282157  Physalis philadelphica R. E. Riefner Jr. 2017-5-18 17- 260 Riverside Perris-Aguanga Basin, city of Hemet, east of Winchester, north of Simpson Road, east of San Diego Aqueduct, west of active agricultural fields 467 Comment
  RSA220955  Pinus coulteri E. W. Lathrop 1966-3-23 6115 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 1220 Comment
  CLARK-A1528-3557  Pinus monophylla John C. Roos 1947-4-5 3435 Riverside San Jacinto Mountains 1310 Comment
  RSA651153  Pinus monophylla Peter Gail 1961-5-13 sn Riverside Pinyon Creek State Park. on Palms to Pines Hwy. Comment
  CLARK-A1528-3562  Pinus quadrifolia John C. Roos 1965-8-18 Riverside San Jacinto Mountains Comment
  SEINET10530818  Pinus quadrifolia David B. Dunn, L. S. McClung 1939-10-22 Dunn UMO 46551 Riverside Native tree in the San Jacinto Mts. of southern Calif. in Pinyon-Juniper woodland. Along the Palms to Pines Hwy. 1829 Comment
  SBBG34989  Plagiobothrys T. L. Secrest 1951-5-19 Riverside near Hemet Lake Comment
  UCR113733  Plagiobothrys canescens Mitch Provance 2000-5-5 2016 Riverside Riverside, Box Springs Mtns., canyon c. 0.5 mi. NE of peak 2553 and c. 0.5 mi. SW of the old landfill off Pigeon Pass Rd. 488 Comment
  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
  UCR116852  Plagiobothrys collinus A. C. Sanders, Steven R. Hill 2001-5-4 24141 Riverside Santa Ana Mtns. region, W of Temecula, Santa Rosa Plateau area, top of escarpment on Rancho California Rd. at Avenida del Oro (to Sandia Creek. Dr.), E side of Rancho Calif. Rd. 488 Comment
  RSA0057864  Plagiobothrys collinus var. fulvescens A. C. Sanders 2011-4-6 38996 Riverside 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 311 Comment
  RSA625810  Plagiobothrys collinus var. fulvescens Scott D. White, Julie Greene 1997-3-12 4769 Riverside Pedley area, S foot of Jurupa Hills: Just N of SR 60 Freeway at Pedley exit. 274 Comment
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Apr 2 2011
  UCR157464  Plagiobothrys collinus var. fulvescens A. C. Sanders 1994-5-30 14614 Riverside San Bernardino Mountains, north-northeast of Beaumont at Highland Springs, hills north of the end of Bellflower Ave., at Dutton St 950 Comment
  UCR179202  Plagiobothrys tenellus T. B. Salvato, Jeffrey Ross 1998-5-14 MOR- 135 Riverside San Bernardino Mtns., Morongo Indian Reservation, flat area cut by small wash, south and west of dirt road to Kitching Peak near junction with East Branch Millard Canyon, tree stand M-04 1128 Comment
  UCR266469  Plagiobothrys tenellus Mitch Provance, Robin Kinmont 2015-3-27 315- 53 Riverside Perris-Aguanga Basin Region, Murrieta Hot Springs, Leon Rd. (unmarked dirt portion) on unnamed hill c. 0.5 miles W of Skunk Hollow, vicinity of W terminus of Promontory Parkway. 430 Comment
  UCR171210  Plantago elongata R. E. Riefner Jr. 2006-4-8 06- 107 Riverside Peninsular Range, Lake Elsinore (city), back basin of lake Elsinore west of Pete Lehr Dr. and south of levee near Diamond Stadium 419 Comment
  UCR139179  Plantago erecta 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
  UC1608277  Plantago lanceolata Steve Boyd and Tim Ross 1992-5-5 7262 Riverside nw of Oak Flats (along Verdugo Trail, between junctions with Bluewater and Lucas Canyon Trails); Southern Santa Ana Mountains, San Mateo Canyon Wilderness Ar 762 Comment
  CSUSB1314  Plantago major Margaret-Lee Dean 1965-4-23 Riverside 3908 Linwood Place, Riverside 262 Comment
  JEPS22513  Plantago ovata Rimo Bacigalupi with Paul Hutchison 1958-2-19 6196 Riverside 9.4 mi n Blythe (at w base of Big Maria Mts.); Big Maria Mts. 167 Comment
  RSA489174  Plantago ovata var. fastigiata B. Pitzer 1988-3-10 651 Riverside Chuckwalla Mountains. W side of mountains, on gas line road ca. 1.5 mi north of intersection with Red Cloud Mine Road (and wash); ca. 2 miles (airline) S of Highway I-10. (Red Cloud Road. 10 km cell; PH-2N, 3E) 488 Comment
  RSA554367  Plantago ovata var. fastigiata Theo Glenn 1992-3-31 92 -12 Riverside N side Eagle Mts, Storm Jade Mine. Comment
  UCSB6239  Plantago ovata var. fastigiata Haller, John 1960-4-2 Riverside at north base of Orocopia Mtns; 1.3 miles south of the junc. of US 60-70 and the south entrance road to Joshua Tree Nat. Mon 487 Comment
  SD137692  Plantago patagonica Darin L. Banks, Steve Boyd 1995-5-3 293 Riverside Cleveland National Forest, 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
  UCR120901  Plantago virginica A. C. Sanders 2002-3-20 24897 Riverside Sonoran (Colorado) Desert, Coachella Valley, city of Palm Springs, around offices of Agua Caliente Band of Cahuilla Indians, 650 E Tahquitz Canyon Way at Calle El Segundo 137 Comment
  UC455178  Platanthera leucostachys I. J. Condit 1910-6-23 Riverside San Jacinto Mts. 2590 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
  SD229213  Platanus racemosa Dick Schwenkmeyer 2012-5-22 730 Riverside Snow Creek, north base of Mt. San Jacinto, approx. 4 miles south of intersection of highways 10 and 111 511 Comment
  SEINET10763688  Platanus racemosa R. Allen, Fred M. Roberts 2007-6-22 Allen s.n. Riverside SE of Hemet, Bautista Cyn, ca. 4 road mi SE of jct Bautista Cyn Rd & Fairview Ave. UTM Zone 11S; 3726312mN; 05152050E. 727 Comment
  CLARK-A1528-690  Platystemon californicus Annette Price 1962-5-1 O 57 Riverside Santa Ana Mountains Comment
  SD181426  Platystemon californicus Scott D. White 2001-5-1 8439 Riverside Near Sun City; Quail Valley, valleys and slopes east of Canyon Lake and west of Goetz Road. 441 Comment
  UCR162398  Platystemon californicus S. J. Myers, Chet McGaugh 2003-4-7 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1098 Comment
  RSA100257  Plectritis ciliosa subsp. insignis F. W. Peirson 1922-5-19 3047 Riverside San Jacinto River. 1143 Comment
  RSA0014312  Pleuraphis rigida Justin M. Wood, J. Miner 2010-4-30 1547 Riverside Coachella Valley: Thousand Palms, just E of intersection of Ramon Rd. and Vista de Oro, just NE of Edison substation. 61 Comment
  RSA0019778  Pleuraphis rigida April Garbat, Rachel Poutasse 2013-3-20 10 Riverside Graham Pass Rd, S 5 miles from junction with Chuckwalla Rd. In drainage/wash to west of rd, 1 mile S of power lines. 145 Comment
  RSA336042  Pleuraphis rigida R. F. Thorne, Walter Wisura, A. Shmida, R. Whittaker 1978-4-23 52021 Riverside Chino Canyon Comment
  RSA779690  Pleuraphis rigida Duncan S. Bell 2010-4-2 701 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
  UCR244415  Pleurocoronis pluriseta Jim Andre 2012-4-16 20910 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park; along Cottonwood Springs Rd, 3.1 mi. north of south entrance, 4.1 mi. north of I-10 788 Comment
  UCR245676  Pleurocoronis pluriseta Duncan S. Bell 2010-4-2 698 Riverside Sonoran (Colorado) Desert, Arica Mountains: along jagged ridgeline of mountain range; in the Palen/McCoy wilderness; 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
  UCR174342B  Poa annua A. C. Sanders 2006-5-19 32396 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
  RSA801723  Poa howellii LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6168 Riverside End of Apela Drive, west end of Strawberry Valley. And south of road (5S24) that runs out to the sewage disposal ponds. Collections are between this road, and Strawberry Creek., Basically ridge north of Strawberry Creek and creek north of this ridge, south of road. This draw drains into Strawberry Creek. 1524 Comment
  UCR75543  Poa howellii A. C. Sanders 1993-4-30 13883 Riverside San Bernardino Mtns., along Butterfly Road, which joins Wildwood Canyon Road 0.4 mi. west of Oak Glen Road; between Cherry Valley and the Riverside County line 1100 Comment
  RSA772412  Poa secunda Orlando Mistretta, Duncan Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4853 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
  SEINET244233 Image available Poa secunda A. C. Sanders, Mark Elvin; Julie M. Vanderwier 2002-4-9 24939 Riverside The Badlands; hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 610 Comment
  RSA91514  Poa secunda F. W. Peirson 1921-3-22 5368 Riverside Murray Canyon, near Palm Springs 396 Comment
  RSA91516  Poa secunda F. W. Peirson 1933-4-15 1055 Riverside Whitewater Canyon, 4 miles above bridge of Hwy from Banning to Indio, 701 Comment
  LA12514  Poa secunda subsp. secunda F. M. Reed; 1908-7-10 2554 Riverside San Jacinto Mountains, Round Valley 2743 Comment
  RSA757752  Poa secunda subsp. secunda LeRoy Gross, Jackie McConnaughy, Drew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4286 Riverside Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon., Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W. Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  UCD91782  Poa secunda subsp. secunda F. W. Peirson 1933-4-15 10655 Riverside Whitewater River, 4.5 miles above bridge. 701 Comment
  RSA586488A  Poa secunda var. secunda D. L. Banks, Steve Boyd 1995-5-9 345 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
  UCR189801  Polygala cornuta var. fishiae Amy Rowland 2007-5-8 067 Riverside Peninsular Range, Santa Ana Mountains Region, Tin Mine Canyon c. 4 mi southwest of city of Corona, in drainage near Tin Mine trail 427 Comment
  RSA597078  Polygonum arenastrum D. L. Banks, Elizabeth Hedge Banks, John B. Hedge 1996-6-6 1116 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; At the junction of Los Caballos Road and Hwy. 378 Comment
  RSA334990  Polygonum punctatum Steve Boyd 1985-7-23 1014 Riverside De Luz Road, 8.0 miles W of Rancho California. Sandia Creek. 305 Comment
  UCR96808  Polypodium californicum A. C. Sanders, O. F. Clarke & H. Forster 1997-3-2 19763 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
  RSA503416  Polypogon interruptus John Olmsted 1962-5-10 3632 Riverside Coldwater Canyon, Corona city water supply, western Riverside County 396 Comment
  SEINET6631301 Image available Polypogon monspeliensis Scott D. White 2004-1 10252 Riverside San Jacinto Mountain Foothills; Soboba Indian Reservation, Indian Creek Watershed 518 Comment
  UC821249  Polypogon monspeliensis P. A. Munz 1922-6-23 5774 Riverside San Jacinto Mts. Hemet Valley; , Hemet Valley 1371 Comment
  CAS-BOT-BC237462  Polypogon viridis John Thomas Howell 1959-9-26 35069 Riverside San Jacinto Mountains: Bautista Canyon 951 Comment
  POM182203  Populus X parryi Philip A. Munz 1932-4-24 12388 Riverside San Jacinto Mountains: Snow Creek Canyon 457 Comment
  RSA755744  Populus balsamifera subsp. trichocarpa A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37158 Riverside Box Springs Mtns. Foothills, Riverside, eastern side of UCR Campus in canyon below botanical garden 320 Comment
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Mar 2 2014
  CAS-BOT-BC102581  Populus fremontii Swingle 1915-9-1 s.n. Riverside Indio Comment
  SD233936  Populus fremontii subsp. fremontii LeRoy Gross, Bart OBrien 2013-3-18 5951 Riverside Coastal Plains & Basins; San Bernardino Basin region: Fairmount Park, west side of Lake Evans, Riverside, NE of Mount Rubidoux (Riverside West 7.5'Q). 238 Comment
  CAS-BOT-BC356165  Porophyllum gracile H. M. Hall 1905-5-2 5977 Riverside Colorado Desert. Chuckawalla [Chuckwalla] Mt. Comment
  POM144627  Porophyllum gracile A. M. Alexander, Louise Kellogg 1941-5-9 2141 Riverside Cottonwood Spring, Eagle Mountains 884 Comment
  UC604856  Porophyllum gracile Roxana S. Ferris and Ruth P. Rossbach 1938-5-15 9537 Riverside 2 mi from Cottonwood Springs; Cottonwood Mts. Comment
  UCR48392  Porophyllum gracile Steve Boyd 1986-5-1 1786 Riverside Perris-Aguanga Basin region, southwestern Perris Basin, hill west of Skunk Hollow, Skunk Hollow vernal pool 488 Comment
  RSA487824  Portulaca oleracea A. C. Sanders 1988-11-6 8738 Riverside Coachella Valley, W side of Hwy 86, 6.25 mi. S of it s junction with hwy 111 in Coachella and 3.85 mi. n of Valerie Jean, 0.55 mi. N of ave 60. -11 Comment
  RSA776701  Potamogeton diversifolius Steve Boyd, Gary Wallace 2005-7-30 11642 Riverside San Jacinto Mountains State Park, Hidden Lake area, northeast of Hidden Divide, southeast of Long Valley, near head of Hidden Fork of Tahquitz Creek 2659 Comment
  RSA356637  Potamogeton foliosus Robert F. Thorne, C. W. Tilforth, Larry E. DeBuhr, E. L. Lathrop 1975-8-29 47291 Riverside Santa Rosa Plateau: Ranch California near Jct of road to Santa Rosa Ranch from Tenaja Road, in shallow water of large pool in intermittent stream 549 Comment
  RSA783358  Potentilla glandulosa John Olmsted 1958-6-15 171 Riverside San Jacinto Mts: M. FK. San Jacinto Range Drainage Area. 1 mi above intersection of Beartrap Canyon with Strawberry Cr. by Idyllwild School of Music and Art. On sandy banks of Beartrap Canyon. 1616 Comment
  UCR168615  Potentilla glandulosa T. B. Salvato, John F. Green 2004-5-27 577 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
  SDSU14003  Potentilla glandulosa subsp. reflexa Michael G. Simpson, C. Luke, T. Sagar, S. Johnston, T. Duffy 2000-4-30 2103 Riverside El Valle. Remote southeastern region of Santa Margarita Ecological Reserve (SDSU). 640 Comment
  CAS-BOT-BC144850  Potentilla rimicola Frank W. Peirson 1924-7-27 5000 Riverside 1/2 mile west of Deer Spring, San Jacinto Mts. Comment
  SDSU18773  Primula clevelandii var. clevelandii C. Matt Guilliams 2008-2-13 447 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. Just downslope of mesatop. 426 Comment
  CAS-BOT-BC206985  Prosopis glandulosa var. torreyana Alice Eastwood 1913-4-30 3063 Riverside Palm Springs Comment
  CAS-BOT-BC151124  Prunus fremontii Milo S. Baker 1928-4-4 2799 a Riverside Tahquitz Canyon Comment
  NY42610  Prunus fremontii J. B. Walker 1995-3-21 1266 Riverside W of Palm Desert, along Hwy 79, 3km E of Pinyon Flat Campground 1200 Comment
  RSA786235  Prunus fremontii C. P. Cowan 1978-4-23 1222 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
  SD229262  Prunus fremontii Dick Schwenkmeyer 2013-6-11 912 Riverside Approx. 1.5 miles north od highway 74 and Royal Carrizo Road intersection. 854 Comment
  CAS-BOT-BC356352  Psathyrotes ramosissima Carl B. Wolf 1932-4-26 2972 Riverside Colorado Desert. 5 mi. E. of Mecca, on Blythe Road 30 Comment
  CAS-BOT-BC356340  Psathyrotes ramosissima R. F. Hoover 1966-10-15 10159 Riverside Dead Indian Creek wash, south of Palm Desert Comment
  UCD135038  Pseudognaphalium biolettii Steve Boyd; Tim Ross, Laurel Arnseth 1989-4-1 3189 Riverside Vail Lake area, head of Temecula Creek Canyon at the dam. 426 Comment
  CAS-BOT-BC356793  Pseudognaphalium californicum A. C. Sanders 1997-3-19 20007 Riverside Lake Skinner area: slopes N of Tucalota Creek ca. 3/4 mi. (1.25 km) E of the lake 470 Comment
  SD152939  Pseudognaphalium californicum Steve Boyd, Tim Ross 1992-5-5 7246 Riverside Southern Santa Ana Mountains, isolated grassland area south of Oak Flats. 730 Comment
  UC1605405  Pseudognaphalium leucocephalum Steve Boyd 1994-10-14 8385 Riverside San Mateo Canyon at confluence with Bluewater Canyon (canyon bottom); Southern Santa Ana Mountains, Cleveland N.F. 329 Comment
  CAS-BOT-BC357571  Pseudognaphalium stramineum Faulkner 1978-4-27 499 Riverside 3 miles East of Blythe, shores and flood plains of Colorado River 137 Comment
  UC813370  Pseudotsuga macrocarpa C. Epling 1937-4-1 Riverside above Herkey Creek Camp; San Jacinto Mt. Comment
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Jun 24 2009
  UCR169369  Pseudotsuga macrocarpa June Latting 1972-5-3 s.n. Riverside San Jacinto Mtns, 1 mile east of Keen Summit, 2.5 miles east of Mountain Center (junction of Calif. Hwy 74 and Calif. Hwy 243), a short distance east of Pasadena YMCA camp on the south side of Calif. Hwy 74 1402 Comment
  SEINET10530886  Pseudotsuga macrocarpa David B. Dunn, L. S. McClung 1939-10-22 Dunn UMO 46547 Riverside Collected in the San Jacinto Mts. above Idylwild. At the base of the trail to Taquitz Peak. 2286 Comment
  RSA393771  Psilocarphus brevissimus Robert Gustafson, Gary D. Wallace 1983-6-23 2713 Riverside Mesa de Burro, Santa Rosa region, Santa Ana Mts. 701 Comment
  UCR75318  Psilocarphus brevissimus var. brevissimus A. C. Sanders 1993-5-12 14004 Riverside San Jacinto Valley, Hemet, SW corner of intersection of Florida Ave (Hwy 74) & Warren Rd., between new San Diego Aqueduct and Warren Road 460 Comment
  CAS-BOT-BC362111  Psilostrophe cooperi H. M. Hall; L. A. Greata 1905-4-1 5890 Riverside Chuckawalla Bench, Colorado Desert Comment
  CAS-BOT-BC346366  Psorothamnus L. R. Abrams 1926-3-26 11117 Riverside between Edom and Garnet, east of San Gorgonio Pass Comment
  RSA770790  Psorothamnus arborescens var. simplicifolius Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4531 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
  SEINET7048069  Psorothamnus arborescens var. simplicifolius Steven R. Hill 2001-4-29 33546 Riverside Whitewater Canyon, east side of canyon, east of Whitewater Canyon Road, about 2 miles north of Route I-10. Elevation about 1800 feet. Comment
  CAS-BOT-BC353621  Psorothamnus emoryi C. B. Wolf 1932-4-26 2697 Riverside Colorado Desert, 3 miles E of Mecca on Blythe Road 0 Comment
  RSA651257  Psorothamnus emoryi Anne Greenberg 1981-5-17 104 Riverside Palm Desert, Hwy 74, 5 iles N of Hwy 111. Comment
  RSA765261  Psorothamnus emoryi Justin M. Wood, D. M. Ray 2010-10-21 3002 Riverside Chuckwalla Valley NE of Victory Springs and 0.9 km E of Kaiser Road on unmarked 4WD road. 198 Comment
  RSA784719  Psorothamnus emoryi Duncan S. Bell 2012-3-18 3206 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
  SBBG14292  Psorothamnus emoryi E. R. Blakley 1961-9-10 4707 Riverside 20 mi W of Blythe at wash crossing of US Hwy 60-70 106 Comment
  SDSU5209  Psorothamnus emoryi J. Beley 1975-4-23 74 -671 Riverside 10 miles north Palm Springs along paved T/access. Comment
  UCR245747  Psorothamnus emoryi Duncan S. Bell 2009-4-18 211 Riverside Arica Mountains, NW of range, c. 1.6 air miles south of Hwy 62 and c. 0.4 air mi. N of California aqueduct 389 Comment
  CAS-BOT-BC352324  Psorothamnus fremontii var. fremontii Robert F. Thorne 1964-5-3 33849 Riverside near hwy., ca. 4 miles S of Morongo Valley and ca. 3 miles S of San Bernardino County line. Comment
  SEINET2063916 Image available Psorothamnus polydenius P. Leary 1975-5-27 1213 Riverside 1 mile E of Ruby Lee Well, Joshua Tree National Monument. 853 Comment
  CAS-BOT-BC340873  Psorothamnus schottii S. B. Parish 1896-4-1 4113 Riverside Palm Springs, Colorado Desert Comment
  CAS-BOT-BC340893  Psorothamnus schottii N. Aitkenhead 1977-2-1 2158 Riverside Sand dunes 1/2 mi. E. of Dillon Rd - T/L junction Comment
  CAS-BOT-BC340915  Psorothamnus schottii C. L. Hitchcock 1940-3-29 5849 Riverside Ca. 12 mi. east of Indio Comment
  POM310142  Psorothamnus schottii Hulda Crooks 1946-3-2 259 Riverside E of Palm Springs 137 Comment
  SD73621  Psorothamnus schottii Helen V. Witham 1970-4-29 838 Riverside On Hyw. 74, 29.2 miles east of L. Hemet 600 Comment
  UC1366080  Psorothamnus schottii Nancy Ryan Zabriskie 1969-4-26 193 Riverside Southeastr corner Ryan's cabin, Andreas Canyon near Palm Springs 365 Comment
  RSA91438  Psorothamnus schottii F. W. Peirson 1921-4-13 566 Riverside Deep Canyon Wash, about 12 miles SE of Palm Springs. 152 Comment
  SD158299  Pterospora andromedea Fritz Clark 1999-7-24 Riverside San Jacinto Mountains, Camp Marion, under pines 2438 Comment
  CHSC105751  Pterostegia drymarioides Christine C. Johnson; Paul J. Johnson 1985-3-12 956 Riverside Lamb Canyon, 2 miles NW of Gilman Hot Spr. 463 Comment
  UC850460  Pterostegia drymarioides C. L. Hitchcock 1940-4-1 5909 Riverside 1 mi. below Cottonwood Spring; Joshua Tree Nat'l Monument Comment
  UCR138649  Pterostegia drymarioides D. L. Banks 1997-3-29 1619 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
  UCR165393  Pterostegia drymarioides A. C. Sanders 2005-4-21 29570 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UCR230214  Pterostegia drymarioides A. C. Sanders 2011-4-6 38985 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
  JEPS18607  Purshia tridentata var. glandulosa W. L. Jepson 1914-5-18 5988 Riverside w of Pinyon Well; Colorado Desert, Lookout Mt. Comment
  CAS-BOT-BC466112  Pyrola picta Edmund C. Jaeger 1921-7-13 91 Riverside Stone Creek, San Jacinto Mts. 1706 Comment
  CAS-BOT-BC61825  Quercus agrifolia Earl W. Lathrop 1965-9-22 6029 Riverside 8 miles west of Murrieta Comment
  RSA711037  Quercus agrifolia var. agrifolia A. C. Sanders, R. E. Riefner 2005-8-12 31544 Riverside San Jacinto Mtns.: lower Bautista Canyon, 1.1 mi above Forest Service boundry, 3.2 miles above retention dam at mouth. 744 Comment
  UCR158902  Quercus agrifolia var. agrifolia A. C. Sanders, R. E. Riefner Jr. 2005-8-12 31555 Riverside San Jacinto Mtns., Poppet Flat below Hwy 74 along Poppet Flat Rd. 1098 Comment
  UCSB1042  Quercus agrifolia var. oxyadenia Neely, William 1948-10-3 Riverside above Pinyon Flats, Santa Rosa Mts. 1193 Comment
  SEINET10678317  Quercus berberidifolia Tracy Scott, Andrew Townesmith; Karen M. Meyer 2007-3-18 Scott 135 Riverside San Bernardino National Forest. San Jacinto Mountains. About 1.7 mi on Little Thomas Mtn. Rd., S of Lake Hemet, from Rt. 74. 1467 Comment
  SEINET3101943  Quercus berberidifolia Marc A. Baker, Michelle Cloud-Hughes 2011-6-11 17369 Riverside Along Morris Ranch Road, 640m NNE of Kenworthy Station, 3.5km west of Butterfly Peak, west base of San Jacinto Mountains, Garner Valley, just east of Thomas Mountain, 16km SW of Idyllwild. 1445 Comment
  UCR82765  Quercus berberidifolia A. C. Sanders, D. R. Schramm, D. Wappler 1994-10-6 15779 Riverside San Jacinto Mtns., N slope of mtns.: Twin Pines Creek drainage, Azalea Creek and a tributary gully from the west 1189 Comment
  CAS-BOT-BC62443  Quercus chrysolepis E. A. McGregor 1941-6-12 26 Riverside Santa Rosa Mt. Comment
  JEPS98071  Quercus cornelius-mulleri D. Wilken with E. Painter 2000-11-4 15867 Riverside ca. 4 mi E of Anza (N of Burnt Valley, SE base of Thomas Mountain); San Jacinto Mountains 1400 Comment
  SD126461  Quercus cornelius-mulleri A. C. Sanders, E. J. Lawlor 1988-10-22 8719 Riverside Santa Rosa Mountains, Pinyon Flats area, along Horsethief Creek where the trail from the Dolomite Mine crosses, on slopes above the riparian zone 1100 Comment
  UCR136373  Quercus cornelius-mulleri Mitch Provance, Kerry Knudsen, Petra Wester 2004-5-8 9009 Riverside Santa Rosa Mountains, along Hwy 74 on the Santa Rosa Mountain Grade, c. 0.5-0.8 mi NE of Black Hill 854 Comment
  UCD166234  Quercus dumosa Jack Major 1962-4-16 774 -ac Riverside Mt. San Jacinto, south side. (Exact location unknown. Coordinates estimated by label maker.) 1524 Comment
  UCR273033  Quercus engelmannii Mitch Provance 2012-1-25 17376 Riverside Badlands of Western Riverside County, San Timoteo Canyon, SW end along SCE powerline access roads between El Casco Substation and the Hwy. 60. 677 Comment
  SBBG11833  Quercus palmeri D. E. Breedlove 1961-8-5 952 Riverside 2.7 mi N of Anza Rd, St Hwy 74 1310 Comment
  SEINET3071475  Quercus turbinella Marc A. Baker, Michelle Cloud-Hughes 2011-12-17 17493 Riverside Queen Mountain quadrangle, zone 11 0585690mE 3765105mN NAD83, Desert Queen Mine (McHaney's Mine), 12.5 km SSW of Twenty Nine Palms, 1.3km ESE of Negro Hill 1325 Comment
  SD260965  Quercus wislizeni Mitch Provance 2010-7-6 610 01 Riverside Bridges Creek, eastern end of San Timoteo Canyon, at northwest edge of City of Beaumont, west side of the I-10, about 0.3 miles south-southeast of Oak Valley Parkway. 751 Comment
  UC917880  Quercus wislizeni Frank W. Gould 1943-4-18 2136 Riverside 8 mi e Idlewild Comment
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Sep 29 2011
  SACT002731  Quercus wislizeni var. frutescens A. Delisle 1961-6-25 Riverside Alendale Pines Riverside, Ca Comment
  SEINET4079341  Quercus wislizeni var. frutescens C. Davidson 1975-1 2815 Riverside 3.8 miles north of Alandale Station on road R1 from Idyllwild to Banning. 1699 Comment
  UCR230203  Rafinesquia californica A. C. Sanders 2011-4-6 38990 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
  CAS-BOT-BC362622  Rafinesquia neomexicana H. M. Hall; L. A. Greata 1905-4-1 5873 Riverside Chuckawalla [Chuckwalla] Mts. Comment
  RSA772843  Rafinesquia neomexicana Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4720 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 600 Comment
  SEINET197528  Rafinesquia neomexicana Helen K. Sharsmith 1952-4-10 4059 Riverside Joshua Tree National Monument ; Smoke Tree Wash about 5 miles north east of Cottonwood Springs. 853 Comment
  UCR267888  Rafinesquia neomexicana Jim Andre 2013-3-4 23865 Riverside Sonoran (Colorado) Desert, 0.2 miles east of Hwy 95, just south of Riverside Mountains, just north of Queen Sable Point 96 Comment
  RSA249860  Ranunculus aquatilis var. capillaceus Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38143 Riverside San Jacinto Mountains: San Bernardino National Forest. Hill north of James Reserve and Lake Fulmor 1677 Comment
  CAS-BOT-BC378983  Ranunculus aquatilis var. diffusus Robert F. Thorne; C. W. Tilforth; J. P. Simon 1969-6-24 38143 Riverside San Bernardino National Forest, San Jacinto Mts., Lake Fulmor 1676 Comment
  UC63845  Ranunculus californicus H. M. Hall 1897-4-10 435 Riverside Pico's San Jacinto Valley (along ditch) Comment
  UCR140732  Rhamnus crocea A. C. Sanders 2004-5-12 27870 Riverside Elsinore Basin Region, Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek 378 Comment
  RSA0018313  Rhamnus crocea Keith E. Hoffmaster 1937-6-6 764 Riverside Near Valle Vista. Comment
  RSA14295  Rhamnus ilicifolia Daniel Cleveland 1882-5-5 s.n. Riverside Temecula Comment
  POM320393  Rhododendron occidentale Greg Wright 1971-7-15 290 Riverside County Highway R1, Black Mountain Creek. San Jacinto Mountains 1677 Comment
  RSA249845  Rhododendron occidentale R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38120 Riverside San Bernardino National Forest, San Jacinto Mountains; Above and in James Reserve 1677 Comment
  RSA787603  Rhododendron occidentale Keith E. Hoffmaster 1937-7-5 817 Riverside San Jacinto Mountains, Pine Flat. Comment
  UC22145  Rhododendron occidentale H. M. Hall 1898-7-1 964 Riverside San Jacinto Mountains 1828 Comment
  RSA60298  Rhododendron occidentale var. californicum G. R. Campbell 1948-7-4 609 Riverside Azalea Trails Girl Scout Camp, Dark Canyon, north of Idyllwild. 1738 Comment
  RSA0120133  Rhus aromatica Duncan S. Bell, Thomas Stoughton 2016-4-13 9253 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; on the western slopes of Martinez Mountain. 1548 Comment
  UCR234755  Rhus aromatica A. C. Sanders, John F. Green 2012-6-25 40300 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, benches south of I-15 and east of Horsethief Canyon Rd. 419 Comment
  UCR97653  Rhus aromatica A. C. Sanders, George K. Helmkamp 1997-3-15 19957 Riverside Lake Skinner area: NE of Skinner Lake in a tributary to Rawson Canyon, along the dirt road 503 Comment
  RSA561081  Rhus integrifolia Steve Boyd, Orlando Mistretta 1992-4-22 7001 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. 610 Comment
  UCR94484  Rhus integrifolia Steve Boyd 1981-1-9 s.n. Riverside Peninsular Range, Gavilan Hills, narrows in central Dawson Cyn. 488 Comment
  SD187324  Rhus trilobata Scott D. White, Angelia Carey 2004-4-16 10155 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent slopes. 548 Comment
  CAS-BOT-BC93062  Ribes californicum var. hesperium B. D. Stark 1930-2-21 1470 Riverside Hidden Canyon near Corona. Santa Ana Mountains. Comment
  RSA180295  Ribes indecorum E. W. Lathrop 1965-4-4 5647 Riverside 8 miles west of Murrieta Comment
  UCD102262  Ribes indecorum Steve Boyd; Tim Ross, Laurel Arnseth 1989-4-2 3191 Riverside Vail Lake area, W end of bench on S flank of Oak Mtn. 548 Comment
  UCR77722  Ribes indecorum Steve Boyd 1991-3-17 5486 Riverside Jurupa Hills, north of Glen Avon. S flank, just west of Soto St to summit east of Pyrite Cyn. Comment
  RSA263743  Ribes malvaceum var. viridifolium E. W. Lathrop 1968-5-22 6910 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  RSA511348  Ribes malvaceum var. viridifolium B. Pitzer 1988-1 661 Riverside San Jacinto Mts, Hwy 74 below Mtn Center at a large turn out. 1220 Comment
  UCR87942  Ribes malvaceum var. viridifolium A. C. Sanders 1994-1-30 14226 B Riverside Box Springs Mtns., head of Two Trees Canyon 686 Comment
  RSA441495  Ribes malvaceum var. viridifolium N. C. Cooper 1945-5-24 1636 Riverside Big Oaks Canyon, Banning. 1220 Comment
  UCR24947  Ribes roezlii A. C. Sanders 1980-7-18 1658 Riverside San Jacinto Mtns., Thomas Mountain: Thomas Mountain Campground to the summit at the lookout 2073 Comment
  UCR4163  Ricinus communis R. H. Sauer 1965-4-30 s.n. Riverside Peninsular Range, Intersection of Chase Drive and Skyline Drive, 3.5 mi SW of Corona 244 Comment
  RSA262064  Romneya coulteri E. W. Lathrop 1966-3-23 6079 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA618368  Romneya coulteri var. trichocalyx D. L. Banks 1997-6-16 2060 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. South of Pechanga Road, approximately 20 m south of the intersection of Hunter Lane and Moreno Road. 377 Comment
  CSUSB505  Rorippa nasturtium-aquaticum Pam Maynard 1974-5-17 S. N. Riverside Box Springs Mts Found growing in shallow spring in crevice at east end of Big Spring Road 670 Comment
  UCR654  Rosa californica S. C. Warner 1956-5-19 s.n. Riverside San Jacinto Mtns., 3 mi up Bautista Canyon Road, near San Jacinto 671 Comment
  UCR199625  Rubus ursinus Scott D. White 2004-4-26 10260 Riverside San Jacinto Mountain Foothills, Soboba Indian Reservation, Indian Creek Watershed 671 Comment
  SEINET156513  Rumex hymenosepalus Norman C. Cooper 1945-3-24 1613 Riverside Cabazon. 457 Comment
  UCD101315  Rumex hymenosepalus R. N. Raynor 1933-3-31 s.n. Riverside Moreno Valley. Comment
  UCR84876  Rumex hymenosepalus A. C. Sanders, K. C. Rose, D. Woodard 1995-3-22 16203 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, alluvial fan just east of the mouth of Whitewater Canyon between Windy Point & Hwy I-10, Coachella Valley 370 Comment
  POM153372  Rumex maritimus P. A. Munz, I. M. Johnston 1928-9-12 11245 Riverside North end of Lake Elsinore. Comment
  UCR21005  Rumex salicifolius var. denticulatus A. C. Sanders 1980-5-2 1447 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  RSA605749  Sagina apetala A. C. Sanders 1996-3-17 17985 Riverside Coachella Valley: Palm Springs, mouth of Palm Canyon, ca. 0.5km E of Palm Canyon Dr. on Bogert trail. 163 Comment
  UC25640  Salazaria mexicana H. M. Hall June, 1901 2107 Riverside eastern base San Jacinto Mountains (along the borders of the Colorado Desert); along borders of Colorado Desert, San Jacinto Mountains Comment
  UC56963  Salazaria mexicana F. Gilman 1902-1 7 Riverside Palm Springs Comment
  UC883833  Salazaria mexicana C. L. Hitchcock 1940-4-1 5905 Riverside 1 mi below Cottonwood Springs (Joshua Tree National Monument); , below Cottonwood Springs Comment
  UCR114253  Salicornia virginica Stan C. Spencer 2000-2-1 s.n. Riverside Temecula Valley, Murrieta Creek at confluence with Empire Creek (Long Canyon) 329 Comment
  OBI30251  Salix Chris M. Johnson 1970-3-16 66 Riverside Outside Corona, Hwy 71, at Rancho El Hermano entrance 244 Comment
  CAS-BOT-BC103896  Salix exigua Ivan Johnston 1917-4-4 1068 Riverside Andreas [Canon] Canyon 289 Comment
  UC483065  Salix exigua F. R. Fosberg 1932-3-13 8077 Riverside upper palm grove along stream Thousand Palms Canyon; Coachella Valley, Thousand Palms Canyon Comment
  UCR138719  Salix exigua Julie A. Greene 1993-4-17 1220 Riverside San Jacinto Valley, San Jacinto Wildlife Area. west of San Jacinto River, west of Davis Rd 439 Comment
  UCR147804  Salix exigua Steve Boyd, Aydee Virgen 2004-4-13 10860 Riverside Peninsular Ranges/Santa Ana Mtns region, San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon Comment
  RSA0010974  Salix laevigata H. de Forest 1933-4-16 17607 Riverside Chino Canyon. Colorado Desert Comment
  SEINET229272 Image available Salsola iberica L. M. Shultz, JS Shultz 1985-4-16 8257 Riverside Chuckawalla Valley sand dunes east of the Chuckawalla Mounatins 122 Comment
  UCR201981  Salsola paulsenii Karin Cleary-Rose 1997-1 s.n Riverside Sonoran (Colorado) Desert, Coachella Valley, six mile segment of Jefferson St. in La Quinta and Indio, between Indio Blvd. and Ave. 54 10 Comment
  RSA444943  Salsola tragus N. C. Cooper 1943-10-9 945 Riverside Hemet. 305 Comment
  UCR251305  Saltugilia australis T. B. Salvato, Matthew Malle, Thomas M. Sullivan Jr 2013-3-28 7430 Riverside Perris-Aguanga Basin, Menifee, northeast corner of Murrieta Road and Scott Road 517 Comment
  JOTR16794  Saltugilia splendens subsp. splendens Moore, Sue 1968-5-6 s.n. Riverside Joshua Tree National Park. EUREKA PEAK 1676 Comment
  POM259186  Salvia apiana P. A. Munz 1938-8-14 15371 Riverside High ridge east of Toro Peak, Santa Rosa Mts. 2287 Comment
  POM49157  Salvia apiana Charlotte M. Wilder 1905-06 627 Riverside Wilder's Canyon, Jurupa Hills. Comment
  UCR262266  Salvia apiana T. B. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-23 3739 Riverside San Jacinto Mountains, San Jacinto River Canyon, along South Fork Trail (FSR 2E17), c. halfway between Hwy 74 and the bottom of the canyon 1274 Comment
  LA212156  Salvia apiana Norman Lederer; 1950-4-30 s.n. Riverside Palms to Pines Highway. Comment
  RSA674963  Salvia clevelandii Scott D. White, Teresa Salvato 2001-6-8 8581 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  RSA291604  Salvia columbariae C. W. Tilforth, Walter Wisura 1979-4-11 1790 Riverside Hills on south side of Lake Skinner, east of Murrieta. 427 Comment
  RSA401487A  Salvia columbariae H. de Forest, Freda Detmers 1933-3-25 s.n. Riverside Between Banning and Cabazon Comment
  UC1124712  Salvia columbariae A. Lewis Mar 1934 326 Riverside Bedford Canyon; Corona Quad. 335 Comment
  UCR135719  Salvia columbariae Mitch Provance, Kerry Knudsen, Petra Wester 2004-5-8 9000 Riverside Santa Rosa Mountains, along Hwy 74 on the Santa Rosa Mountain Grade, c. 0.5-0.8 mi NE of Black Hill 854 Comment
  UCSB9265  Salvia columbariae Wedberg, H. 1957-3-23 Riverside Whitewater Canyon Comment
  UCSB8075  Salvia eremostachya MacLean, S. 1963-5-6 Riverside Calif Hwy 74; 10.2 miles SW of Palm Desert 637 Comment
  UCR124652  Salvia mellifera B. C. Templeton, I. W. Clokey 1930-4-9 1067 Riverside Moreno Badlands, Moreno Grade, west of Beaumont 600 Comment
  UCR262270  Salvia mellifera A. C. Sanders 2006-5-13 32275 Riverside Peninsular Range, 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
  RSA219218  Salvia pachyphylla subsp. pachyphylla C. W. Tilforth, John Dourley 1970-9-2 297 Riverside Exposed slopes at higher elevations along road to Santa Rosa Mtn. Comment
  JOTR16733  Salvia vaseyi Vanderspek & Nolte 1964-4-17 s.n. Riverside Joshua Tree National Park. Comment
  RSA648305  Salvia vaseyi Mark Hotchkiss 1977-4-23 s.n. Riverside 7 mi. S.W. of Palm Desert. Pines to Palm Hwy. 457 Comment
  POM12853  Sambucus caerulea P. A. Munz 1922-6-24 5791 Riverside Pipe Creek, Hemet Valley 1402 Comment
  RSA621506  Samolus parviflorus D. L. Banks 1997-11-15 2195 Riverside NW Palomar Mountains, Agua Tibia Mountains: North face of Dorland Mountain, on the north side of the Dorland Mountain Arts Colony. Along the margins of a small man-made pond. 549 Comment
  UCR54655  Sanicula arguta B. G. Pitzer, E. Misquez 1988-2-28 0628 Riverside Santa Ana Mtns, Walker Basin, southwest of Murrieta, Avenida Del Oro, 2 mi south of Rancho California Road 428 Comment
  UCR27181  Sanicula bipinnatifida A. C. Sanders, S. Hagopian 1981-5-20 2140 Riverside Perris-Aguanga Basin, S side of Pauba Valley, within l mi of Hwy 71 bridge over the Temecula River 367 Comment
  SEINET10636258  Sanicula crassicaulis Greg Gust, Leith Nye 2005-3-12 Gust 558 Riverside Cleveland National Forest. Hwy 74 west of lower San Juan Picnic Area at pullout W side of Santa Ana Mountain Range. 495 Comment
  CLARK-A1528-1468  Sarcostemma cynanchoides John C. Roos 1940-8-20 906 Riverside Reche Canyon Comment
  UCR116798  Sarcostemma cynanchoides A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-7 24174 Riverside Perris-Aguanga Basin region, S of Hemet, E end of Diamond Valley, along Gibbel Rd. 0.5-0.75 mi. east of State St., between Silver Dew Dr. and Morse Girard St., slopes and wash below the mouth of Avery Canyon 549 Comment
  JEPS27439  Sarcostemma cynanchoides subsp. hartwegii W. L. Jepson 1914-5-25 6071 Riverside San Gorgonio Pass 548 Comment
  UCR217505  Satureja chandleri Ana Hernandez 2009-4-28 008 Riverside Santa Ana Mtns: foothills, Santa Rosa Plateau, near Tenaja Rd., on north-facing slope and drainage 512 Comment
  SD224815  Schinus molle Scott D. White 1996-2-18 3810 Riverside Double Butte, NW of Winchester. SE-facing slope of W butte and alluvial soil at base. USGS 7.5 Winchester topo. 456 Comment
  UCR228907  Schinus polygamus A. C. Sanders 2011-4-7 39036 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, between Horsethief Canyon and Glen Eden, along I-15 Frontage Rd., SE of Lee Lake 381 Comment
  UCR213272  Schismus arabicus A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37432 Riverside Sonoran (Colorado) Desert, SE side of McCoy Mountains, lower part of wash c. 2.5-3 mi. NW of Blythe Airport, above Black Creek Rd. 171 Comment
  HSC79099  Schismus barbatus Larry Hendrickson 1973-3-18 8590 Riverside 16 mi. E of Temecula, 2.9 mi. E of Aguanga along Hwy. 71. 823 Comment
  RSA774300  Schismus barbatus Duncan S. Bell 2011-4-7 2182 Riverside The east side of the Arica mountains; approximately 1.2 air miles north of Priests Well. or approximately 4.5 air miles southwest of the ghost town of Rice. 308 Comment
  CAS-BOT-BC111576  Schoenoplectus americanus John Thomas Howell 1928-1-28 3286 Riverside Along stream, Thousand Palms, Colorado Desert. Comment
  RSA335035  Scirpus microcarpus Steve Boyd 1985-8-7 1103 Riverside Santa Rosa Plateau region, NW base of Redonda Mesa on Tenaja Rd., 0.8 miles east of junction with 8S01 and 8S02. Comment
  POM10106  Scrophularia californica subsp. floribunda Charlotte M. Wilder 1904-4-30 139 Riverside West Riverside. Comment
  UCR107834  Scrophularia californica subsp. floribunda D. L. Banks 1997-5-5 1980 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pechanga Creek. Along the S fork of Pechanga Creek 427 Comment
  SEINET7048159  Scrophularia californica subsp. floribunda Steven R. Hill 2001-5-3 33660 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
  RSA206255  Sedum niveum Reid V. Moran 1968-8-3 15365 Riverside NE slope of Santa Rosa Mountain 2250 Comment
  CAS-BOT-BC62046  Selaginella bigelovii Louis C. Wheeler 1933-12-2 2298 Riverside Tahquitz Canyon, San Jacinto Mts. 243 Comment
  CHSC21423  Selaginella bigelovii Robert A. Schlising; Et al 1963-12-14 2651 Riverside White Water Canyon, few miles north of White Water on Highway 60. Comment
  SEINET2043064 Image available Selaginella bigelovii A. C. Sanders, O . F. Clarke, P. MacKay, S. White, C. L. Sanders 1994-11-27 15867 Riverside Palm Canyon, from Hermit's Bench upstream to just beyond the confluence with East fork. 268 Comment
  SEINET3864516 Image available Selaginella eremophila Louis C. Wheeler 1964-10-17 8639 Riverside North slope of Orocopia Mountains. Southerly from Hayfield Reservoir (lake).; 0 Comment
  UC306703  Selaginella eremophila S. B. Parish 1919-3-27 19190 Riverside West Canyon Palm Springs; Colorado Desert 167 Comment
  UC130481  Senecio aphanactis Charlotte M. Wilder 1909-3-28 894 Riverside Wilder's Canyon , Wilder's Canyon (Jurupa Hills) Comment
  CAS-BOT-BC323970  Senecio flaccidus var. douglasii Annie M. Alexander; Louise Kellogg 1941-5-9 2142 Riverside Cottonwood Spring, Eagle Mountains. 883 Comment
  CAS-BOT-BC323990  Senecio flaccidus var. douglasii Roxana S. Ferris 1953-4-20 12634 Riverside Canyon floor, road to Lost Palms Canyon about 4 miles N of Shaver summit. Comment
  RSA545239  Senecio flaccidus var. douglasii R. F. Thorne 1970-10 41889 Riverside San Bernardino Mts, Whitewater Canyon: 1350ft near bridges and Whitewater Post Office to 2000 ft up the Canyon toward fish hatchery Comment
  UCR279582  Senecio mohavensis A. C. Sanders, Jim Malusa 2017-3-28 43153 Riverside Sonoran (Colorado) Desert, Northern edge of Chocolate Mountains, along Salt Creek at edge of Navy Aerial Gunnery Range, vicinity of Clemons Well site, between wash and old Kaiser RR 314 Comment
  RSA524465  Senecio vulgaris Steve Boyd, Timothy S. Ross, Laurel Arnseth, Jaime Bonilla 1990-4-3 4068 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
  UCR21974  Senecio vulgaris Steve Boyd 1980-5-5 202 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  SEINET1100340 Image available Senna armata W. C. Anderson 1965-5-9 Riverside 2 miles S of Cotonwood Guard Station, Joshua Tree National Monument Comment
  SD134449  Senna covesii Craig Reiser 1992-4-11 Riverside Beside Palms to Pines Highway, near the top of the grade dropping to Palm Desert Comment
  SEINET2042037 Image available Sesbania herbacea George Helmkamp, E. A. Helmkamp 2000-8-29 5984 Riverside Colorado Desert: S of Mecca, where Lincoln St. Crosses the Whitewater River. Ca. 0.5 mi from the Salton Sea. 67 Comment
  UC665776  Sesuvium verrucosum Ira L. Wiggins 1941-3-24 9582 Riverside 3.5 mi s of Mortmar (along eastern margin of Salton Sea); Salton Sea Comment
  CSUSB597  Sidalcea malviflora Leland R. Dykes 1962-4-22 Riverside Santa Ana Mountains Santa Ana Mountains. San Mateo Canyon Road. 7 miles west of Palomar Road, Murrietta. Comment
  UC1012992  Sidalcea malviflora subsp. sparsifolia C. L. Hitchcock 1952-5-31 19562 Riverside n edge of town Idyllwild; n edge of town of Idylwild Comment
  UC1930011  Sidalcea malviflora subsp. sparsifolia Scott D. White, Justin Wood 2008-5-15 12007 Riverside San JAcinto Mountains: Johnson Meadow. (Idyllwild) Comment
  UC871472  Sidalcea malviflora subsp. sparsifolia P. A. Munz and I. M. Johnston 1922-5-19 5428 Riverside Hemet Valley San Jacinto Mts., Hemet Valley 1402 Comment
  RSA560367  Silene gallica Steve Boyd 1992-4-14 6823 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area; Western flank of Bluewater Canyon along Bluewater Trail. 341 Comment
  CLARK-A1528-5010  Silene laciniata John C. Roos 1937-6-7 2399 Riverside Comment
  POM12789  Silene verecunda subsp. platyota P. A. Munz 1922-6-23 5772 Riverside Keen Camp, San Jacinto Mountains 1524 Comment
  RSA575854  Silybum marianum Steve Boyd 1980-4-23 s.n. Riverside Glen Avon, ruderal field at Jurupa Road and Galena Avenue Comment
  RSA475300  Simmondsia chinensis Steve D. Boyd, Sara Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2110 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  SEINET8727739 Image available Sinapis incana Jean Coulson 1959-1 s.n. Riverside Riverside; N. W. corner of Liden and Canyon Crest. Comment
  UCR261488  Sisymbrium altissimum A. C. Sanders, Katie Young, John Hale 2015-4-22 41583 Riverside San Gorgonio Pass, San Gorgonio River wash, SE of Cabazon, east of Elm St., c. 1.6 km south of I-10, 1.2 km NW (319 deg. ) of One Horse Spring 458 Comment
  RSA249446  Sisymbrium altissimum John F. Emmel