Search Results — 2000 specimen records retrieved (1897 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
  CSUSB1328  Abronia villosa Clifford Kishi 1972-5-14 720514 34 Riverside San Jacinto Mountains San Jacinto Mountains; 1 mile from Lake Hemet Reservoir along Herkey Canyon Road. 609 Comment
  RSA652381  Abronia villosa C. J. Humphrey, Herbert Humphrey 1936-6-8 76 Riverside Along roadside in desert 20 miles west of Indio Comment
  UCR116812  Abronia villosa A. C. Sanders, Mitch Provance, T. B. Salvato 2001-4-6 23942 Riverside Western Colorado Desert, Coachella Valley, Desert Hot Springs, north of intersection of Pierson Blvd. and Atlantic, north of flood control ditch 348 Comment
  RSA0046826  Abronia villosa Tamara Joy Hanna 1991-5-4 15 Riverside Township of Anza, area of High Country Ranches. From Terwilliger Road (paved) east on Coyote Canyon Road (dirt) approx. 2 miles. 1219 Comment
  RSA652385  Abronia villosa var. aurita Jim M. Morrow 1959-5-24 s.n. Riverside Edge of old Hwy 71, Temescal Canyon. Near Alber hill. 305 Comment
  RSA784962  Abronia villosa var. aurita Duncan S. Bell 2012-3-18 3226 Riverside The Mecca Hills; at the mouth of Box Canyon, on the north side of the Coachella Canal. 14 Comment
  RSA97040  Abronia villosa var. aurita E. K. Balls 1954-7-18 19534 Riverside seed coll. from from head of Hemet Valley. san Jaconto Mts. 1494 Comment
Read comments
Jul 14 2012
  SD73625  Abronia villosa var. aurita Helen V. Witham 1970-5-1 853 Riverside Frequent in wash, Bautista Canyon, ca. 5 miles south of Hwy 74 (mak 10/07) 800 Comment
  SEINET937285  Abronia villosa var. villosa Leo A. Galloway 1970-1 1249 Riverside 25 miles north-northeast of Desert Center. Comment
  UC912629  Abronia villosa var. villosa Curtis Ferris 1932-3-20 62 Riverside 8 mi e Oasis (on Jones Ranch) Comment
Read comments
Jun 24 2008
  POM6907  Acacia greggii P. A. Munz 1919-5-7 2743 Riverside Palm springs 183 Comment
  UCR11953  Acamptopappus sphaerocephalus W. Shapeero 1954-4-28 s.n. Riverside Mojave Desert, Joshua Tree National Monument [Park] Comment
  RSA730045  Acamptopappus sphaerocephalus var. sphaerocephalus R. F. Thorne 1966-10-15 41796 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway Comment
  UC777975  Achnatherum coronatum Frank W. Gould 1943-4-17 2128 Riverside 12 mi s on road to Elsinore Corona Comment
  POM365987  Achnatherum hymenoides Bonnie C. Templeton 1931-4-9 s.n. Riverside N of Palm Springs Comment
  UC39993  Achnatherum parishii H. M. Hall 1901-6 2309 Riverside near Tauquitz; San Jacinto Mountains 2133 Comment
  RSA562453  Achyrachaena mollis Steve Boyd, T. S. Ross 1992-5-5 7236 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Eastern portions of Oak Flats along the Bluewater Trail. 732 Comment
  RSA27865  Achyronychia cooperi C. L. Hitchcock 1940-3-29 5847 Riverside 12 miles east of Indio. Comment
  VVC165  Achyronychia cooperi F. Zaebst 1954-2-3 s.n. Riverside Colorado Desert, On gas pipe rd. 1.8 miles E of Jct w US 60, 8.2 mi E of Desert Center 246 Comment
  SBBG133770  Acmispon brachycarpus A. C. Sanders 2011-4-26 39327 Riverside Alberhill Mtn, S side near Nichols Rd, ca. 350 m WNW (276 deg ) of Nichols Rd and Pierce St intersection 395 Comment
  SD227811  Acmispon brachycarpus Andrew C. Sanders, G. Helmkamp 1997-3-15 20001 Riverside Peninsular Range: Lake Skinner, SE foot of Bachelor Mtn., just N of the lake 500 Comment
  JOTR34168  Acmispon glaber var. brevialatus Harding, Mitzi, T. Herskovits and D. Oquendo 2011-5-5 125 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Pushawalla Canyon; Pinyon Well; Riparian area near small series of active springs and seeps (Stop 2) 1182 Comment
  SBBG51125  Acmispon nevadensis var. davidsonii N. R. Zabriskie, W. Zabriskie 1973-4-6 628 Riverside Andreas Cyn 365 Comment
  RSA791483  Acmispon strigosus Jim Andre, Tasha La Doux, R. B. Kelley 2011-5-4 21082 Riverside Joshua Tree National Park; Long Canyon, up side canyon approx. 400 m. west of main canyon drainage. 1172 Comment
  UCD104364  Acmispon strigosus Rimo Bacigalupi; L. Heckard 1962-3-25 8391 Riverside Eastern base of the Santa Ana Mountains just north of Bedford Canyon; about 5 miles southeast of Corona. 304 Comment
  RSA793266  Acourtia microcephala Aaron C. Sedgwick, April Garbat 2012-5-5 98 Riverside West of San Jacinto Forest Service land and south of Hwy. 74. Entry point is from an unmarked road just ~1000 ft. west of the ranger station. Continue through citrus groves to BLM land located in a canyon south of the groves. 610 Comment
  UC1979597  Acourtia microcephala D. L. Banks, Victor Steinmann 1995-7-10 0747 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along the Wildhorse Trail, S of lower Arroyo Seco, NW of Wildhorse Peak. Comment
  UCR133454  Adenostoma fasciculatum Tracy Tennant, J. S. Ross 1998-7-30 MOR- 676 Riverside San Bernardino Mtns. Region, Morongo Indian Reservation, Hathaway Canyon, slope above and west of polygon H3. 976 Comment
  UCR172766  Adenostoma fasciculatum Abby Sirulnik, Ian G. Gillespie 2000-5-14 52 Riverside Peninsular Ranges; Santa Ana Mtn. Foothills, Temescal Canyon. Indian Truck Road exit off of Interstate 15, c. 0.9 mi. S on De Palma Road 427 Comment
  UCR21920  Adenostoma fasciculatum Steve Boyd 1980-5-11 248 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
  UCSB26901  Adenostoma fasciculatum var. fasciculatum Wilken, Dieter 1969-6-30 Riverside Road to Santa Rosa Mountain, 4.0 miles east of California State Highway 74, Santa Rosa Mtns. Comment
  CAS-BOT-BC139859  Adenostoma sparsifolium Winifern W. Swarth 1914-9-8 s.n. Riverside Trail below Strawberry Valley, San Jacinto Mts. 1524 Comment
  CLARK-A1528-4007  Adenostoma sparsifolium John C. Roos 1937-8-17 2405 Riverside San Jacinto Mountains 1066 Comment
  RSA0125179  Adiantum capillus-veneris Duncan S. Bell 2016-10-27 10208 Riverside Whitewater Canyon area; collecting in Rainbow Canyon, 2.75 air miles northwest of the Whitewater Ranger Station (trout ponds). 1024 Comment
  CAS-BOT-BC101828  Agave deserti C. B. Wolf; P. C. Everett 1939-9-29 9455 Riverside Desert slopes of San Jacinto Range, Deep Canyon on Palms to Pines Road, 2 7/10 mi. below road to Dos Palmos Spring 274 Comment
  SEINET6755957 Image available Agave deserti James Henrickson 1969-10-25 4262 Riverside 16 miles SW of Idyllwild at summit of Palms to Pines Grade 1494 Comment
  RSA592676  Agave deserti subsp. deserti Scott D. White 1996-7-2 4253 Riverside Pinyon Flat area, N of Hwy. 74, ca. 10 road mi. E of junction w/ Hwy. 371. W facing slope of Sugarloaf Mtn and adjacent valley. 1250 Comment
  UCR89841  Agoseris grandiflora Scott D. White, S. J. Myers, S. Ogg Wilcox 1995-6-16 3298 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
  UC218030  Agoseris heterophylla var. heterophylla P. A. Munz and J. M. Johnston 1922-5-20 5479 Riverside Kenworthy San Jacinto Mts. 1417 Comment
Read comments
Mar 25 2011
  CLARK-A1528-1004  Agrostis exarata E. W. Lathrop 1959-5-29 Riverside Cleveland National Forest Comment
  RSA681917  Agrostis pallens Scott D. White, Michael Honer, Dylan Hannon 2003-6-24 s.n. Riverside Mountains west of I-15 Freeway and immediately north of San Diego County boundary. 335 Comment
  UCR135837  Agrostis pallens A. C. Sanders 2004-4-20 27540 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  UCR193870  Agrostis pallens A. C. Sanders, Mitch Provance 2008-7-11 35792 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station 1475 Comment
  UCR39540  Agrostis pallens A. C. Sanders 1980-7-22 1727 Riverside San Jacinto Mtns, along road 5S09 between the USC Idyllwild campus (Isomata) and Alvin Meadow; about 0.25 mi from Isomata 1524 Comment
  CLARK-A1528-7824  Agrostis scabra John C. Roos 1937-8-18 494 Riverside San Jacinto Mountains Comment
  UCR201412  Agrostis viridis Justin M. Wood 2008-9-30 175 Riverside SW Perris Basin, Temecula/Murrieta Creek, downstream of 1st Street bridge 305 Comment
  UCD117504  Aliciella latifolia James Henrickson 1963-3-29 1198 Riverside 9 miles E of Mecca, along Highway 195. 182 Comment
  UC1280904  Allenrolfea occidentalis H. E. McMinn 1937-3-6 5016 Riverside River Rd. ca. 20 mi. n. of Blythe Comment
  CAS-BOT-BC434480  Allionia incarnata Carl B. Wolf 1932-4-28 3073 Riverside Colorado Desert. Chuckwalla Valley. 20 mi. West of Blythe on the Mecca Road. 121 Comment
  UCSB748  Allium burlewii Ralph, F. 1959-5-16 Riverside Top of Devil's slide Trail; San Jacinto Mtns. Wilderness area 2621 Comment
  CAS-BOT-BC131982  Allium haematochiton H. M. Hall 1901-6-1 2096 Riverside In the vicinity of Strawberry Valley 1371 Comment
  IRVC25  Allium haematochiton R. H. Whittaker, W. A. Niering 1963-6-20 SJ 501 Riverside Peninsular Ranges, San Jacinto Mountains 1677 Comment
  POM230625  Allium haematochiton I. W. Clokey 1935-4-18 6555 Riverside Gavilan Peak 600 Comment
  UCR49374  Allium haematochiton Steve Boyd 1986-3-9 1395 Riverside Peninsular Range, Temescal Canyon, between Indian Truck Trail & Horsethief Wash 367 Comment
  RSA348951  Allium munzii Steve Boyd 1986-4-10 1640 Riverside Gavilan Hills; Temescal Canyon: DePalma Rd., 0.1 miles E of the Indian Truck Trail exit of I-15. 366 Comment
  RSA70180  Allium munzii F. W. Peirson 1922-4-28 2961 Riverside Temescal Canyon, western Riverside Co.. 320 Comment
  UCR144117  Allium munzii Scott D. White, Kurt Cambell, John Resek 2000-4-26 7736 Riverside Santa Ana Mtns, Lake Elsinore area, low hill west of intermittent channel (drains Walker Canyon). SW of Collier Ave. and NW of Riverside Dr. 412 Comment
  UCR42423  Allium munzii Steve Boyd 1986-5-1 1798 Riverside Murrieta Hot Springs, Skunk Hollow area, east of Murrieta Hot Springs, on N base of hill just to the west of Skunk Hollow. 439 Comment
  UCR64626  Allium munzii B. C. Templeton, C. B. & I. W. Clokey 1930-4-15 1477 Riverside Gavilan Hills, near Gavilan Peak, west of Perris 400 Comment
  JOTR30919  Allium parishii La Doux, Tasha, Bill Truesdell 2008-4-29 2595 Riverside Joshua Tree National Park. Little San Bernardino mountains, north end of Quail Mountain; Steep rocky slopes above side canyon, south of Johnny Lang Canyon (Stop 7) 1208 Comment
  UCR172711  Allium peninsulare Jun Hu 2000-5-11 20 Riverside San Jacinto Valley, SE of city of Winchester, Hills N of Diamond Valley 488 Comment
  RSA770792  Alnus rhombifolia Orlando Mistretta, Duncan Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4533 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR95252  Aloe saponaria D. L. Banks, E. H. Banks 1996-5-2 952 Riverside Agua Tibia Mountains, NW Palomar Mountains; NW foothills of Dorland Mtn, S end of Los Caballos Road, University of California-Emerson Oaks Reserve, at the Emerson Cottage 524 Comment
  SD248310  Alternanthera caracasana Oscar Avila 2015-8-6 Riverside Riverside: Ryan Bonaminio Park, Tequesquite Arroyo below old Chinatown and just above confluence with Santa Ana River, along Tequesquite Avenue, south of Mt. Rubidoux (Riverside West 7.5'Q) 227 Comment
  UCR113877  Amaranthus blitoides Mitch Provance, A. C. Sanders 2000-7-4 2089 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  UCR13999  Amaranthus caudatus David Eslinger 1973-9-25 s.n. Riverside Hatch residence, 2228 5th St., Riverside 260 Comment
  OBI35668  Amaranthus fimbriatus Louis B. Ziegler 1964-9-1 25 Riverside San Jacinto Mts Pinyon flats 1311 Comment
  UCR26460  Amaranthus hybridus A. C. Sanders 1981-10-31 2393 Riverside McKinley St. between Riverside & Corona, 0.3 mi north of Hwy 91 & c. 100 yards west of McKinley 305 Comment
  UC56557  Amaranthus powellii H. M. Hall Aug 1901 Riverside vicinity of Riverside Southern California 304 Comment
  UCR18739  Amaranthus powellii John C. Roos 1965-9-28 s.n. Riverside San Jacinto Valley, Hemet Comment
  CAS-BOT-BC13613  Ambrosia acanthicarpa L. R. Abrams 1926-3-26 11037 Riverside Palm Springs Comment
  RSA544299  Ambrosia acanthicarpa Steve Boyd 1991-9-8 6427 Riverside Aguanga Valley, sandy wash of Temecula Creek, S of Hwy 79 at jtn with Hwy 371. 600 Comment
  CAS-BOT-BC45009  Ambrosia confertiflora Katherine Esau 1935-6-20 s.n. Riverside Near Beaumont Comment
  LA202894  Ambrosia dumosa W. B. Welch; 1928-5-5 sn Riverside Travertine Rock near Salton Sea Comment
  RSA302651  Ambrosia dumosa J. R. Shevock 1972-3-13 1403 Riverside Hwy 111, near Palm Springs 183 Comment
  RSA342534  Ambrosia dumosa R. F. Thorne, D. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54016 Riverside San Bernardino Mountains: 1/4 mile W of Whitewater P. O. and 1/2 mile W of Whitewater River 415 Comment
  RSA796018  Ambrosia dumosa Duncan S. Bell 2009-4-18 245 Riverside Arica Mountains; northeast of range, approximately 2.25 air miles southwest of the ghost town of Rice. 224 Comment
  UCR275449  Ambrosia dumosa Thomas R. Stoughton, Stephanie Rockwood, Christi Gabriel 2011-3-31 946 Riverside Sonoran (Colorado) Desert, wash crossing Midland-Rice Road, near saddle between Little Maria Mountains and Big Maria Mountains 320 Comment
  CLARK-A1528-1537  Ambrosia ilicifolia John C. Roos 1958-3-15 Riverside Chuckwalla Mountains Comment
  RSA561514  Ambrosia psilostachya Steve Boyd, Timothy S. Ross, David E. Bramlet 1992-9-9 7659 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Upper San Mateo Canyon, from the junction of Tenaja Road (7S01) and Los Almos Road (7S04) and the confluence of Los Almos Creek., Up the San Mateo Trail north to Potrero de la Cienega. 396 Comment
  CAS-BOT-BC273015  Ambrosia salsola Dr. Barton W. Evermann 1924-4-12 s.n. Riverside Cottonwood Springs Comment
  SFV17322  Ambrosia salsola var. pentalepis J. N. Hogue, J. D. Dilley 1998-4-23 108 .5 Riverside Chuckwalla Mountains. Corn Springs Wash at Corn Spring. 488 Comment
Read comments
Mar 2 2015
  UC724141  Ambrosia salsola var. salsola Aven and Ruth Nelson 1939-3-22 3220 Riverside near Palm Springs Comment
  POM48865  Amelanchier pallida Philip A. Munz, I. M. Johnston 1924-7-26 8701 Riverside small ravine, north of Dark Canyon 1524 Comment
  RSA623565  Ammannia robusta R. E. Riefner Jr. 1998-10-15 98 -527 Riverside Paloma Valley. Comment
  UCR18300  Ammannia robusta A. C. Sanders 1979-10-6 424 Riverside San Jacinto Valley, c. 0.25 mi. west of Bridge Street near its intersection with Gilman Springs Road 427 Comment
  RSA787990  Amorpha californica var. californica Linda M. Prince, Duncan S. Bell 2009-6-17 s.n. Riverside Cleveland National Forest. Roadside. Comment
  UCR133457  Amorpha californica var. californica Tracy Tennant, J. S. Ross 1998-7-30 MOR- 677 Riverside San Bernardino Mtns. Region, Morongo Indian Reservation, Hathaway Canyon, slope above and west of polygon H3. 976 Comment
  POM1907  Amorpha fruticosa Crawford 1919-6-9 1225 Riverside Santa Ana River, near Corona. 152 Comment
Read comments
Sep 17 2008
  RSA500571  Amorpha fruticosa Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3580 Riverside Vail lake area, sedimentary hills at NW end of lake at E end of Oak Mtn, N of Wilson Creek. 488 Comment
  UCSB42198  Amorpha fruticosa var. occidentalis John C. Roos 1966-5-5 Riverside collected in Gilman Hot Springs of the San Jacinto Valley Gilman Hot Springs Comment
  CDA40603  Amsinckia intermedia A. C. Sanders, T. B. Salvato, Mitch Provance. 2003-4-4 25834 Riverside San Bernardino/Santa Ana River Valley Region; Jurupa Mtns., hill SW of the Jensen Quarry, NW of Sunnyslope. Comment
  UCR154827  Amsinckia intermedia A. C. Sanders, Mike Misenhelter 2005-3-23 29273 Riverside Santa Ana Mtns., Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  UCR214547  Amsinckia intermedia A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37860 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, along dirt extension of Lake St., 0.8 mi. north (09 deg. ) of intersection of I-15 and Lake St. 482 Comment
  UCR260834  Amsinckia intermedia A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-25 41521 Riverside San Gorgonio Pass, 2.5 miles east of Cabazon, north of the San Gorgonio River wash on the alluvial slope NE of the water bottling plant, east of Elm St. and south of I-10 483 Comment
  UCR274306  Amsinckia intermedia T. B. Salvato, Melissa Clemons 2005-6-6 1427 Riverside Peninsular Range, Gavilan Hills, c. 0.75 mile south-southeast of Steele Peak, 0.6 mile E of Hammack Ranch, and 5 miles north-northeast of Lake Elsinore 579 Comment
  UCR93053  Amsinckia intermedia Steve Boyd 1986-3-9 1391 Riverside Peninsular Range, Temescal Canyon: Alberhill Mtn., south slope of mtn., just east of claymine area 488 Comment
  UC480653  Amsinckia menziesii var. menziesii Philip A. Munz 1927-5-20 10795 Riverside Murietta Hot Springs Comment
  UCR274308  Amsinckia retrorsa T. B. Salvato, Melissa Clemons 2005-6-6 1426 Riverside Peninsular Range, Gavilan Hills, c. 0.75 mile south-southeast of Steele Peak, 0.6 mile E of Hammack Ranch, and 5 miles north-northeast of Lake Elsinore 579 Comment
  JOTR34229  Amsinckia tessellata var. tessellata La Doux, Tasha, M. Harding, B. Truesdell, M. Wheeler 2010-5-12 3082 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Lower ridges at base of Quail Mountain; within old burn area between Lost Horse Valley and Juniper Flats (Stop 2) Comment
  UCR16648  Anagallis arvensis S. Riddell 1973-5-17 730517- 10 Riverside Santa Ana Mtns, 0.1 mi west of El Cariso Fire Station on Hwy 74 793 Comment
  UCR174344  Anagallis arvensis A. C. Sanders 2006-5-19 32399 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 518 Comment
  HSC85270  Ancistrocarphus filagineus Steve Boyd 1986-4-22 1772 Riverside Temescal Canyon: E side of Indian Wash, S of I-15. Comment
  UCR281494  Ancistrocarphus filagineus Mitch Provance, John Hazlett, Matt K. Beyers, Jeremiah George 2017-4-5 417- 95 Riverside Temescal Valley, S side of De Palma Rd, about 0.5 mile WNW of Horsethief Canyon Rd. 400 Comment
  SBBG101790  Anemopsis californica S. Boyd, t. Ross 1991-6-14 6369 Riverside Warm Springs Crk at the NE end of Hogbacks Ridge, from Alamos Rd, S to confluence with Adobe Spring tributary, 2-3 mi NW of Murrieta Hot Springs Comment
  UCR114540  Anemopsis californica A. C. Sanders, K. C. Rose 1999-6-18 22808 Riverside Skinner/Domenigoni area, French Valley, E side of Washington Ave. near Rawson Rd. 451 Comment
  UCR150019  Anemopsis californica Scott D. White, Angelia Carey 2004-5-7 10341 Riverside San Jacinto Mountains, Indian Creek and adjacent foothills 610 Comment
  UC1237988  Anisocoma acaulis John Weiler and Roy L. Taylor May 12 1961-May 15 1961 61120 Riverside 100 yds e of bridge over, (feeding Hemet Res. along Hwy 74) Hurkey Creek; Hemet Reservoir Comment
Read comments
Mar 24 2011
  RSA557573  Anthemis cotula Julie Greene 1993-5-12 1294 b Riverside North side of San Jacinto River levee, west of Davis Road. 433 Comment
  SD262180  Anthemis cotula T. B. Salvato, Gregg Miller 2005-6-3 1371 Riverside Peninsular Range; Perris - Aguanga Basin Region: San Jacinto River c. 2.5 mi SSW of Perris, 1.5 mi downstream of Goetz Road where the river leaves the Perris Plain and enters the hill area above Railroad Canyon. 427 Comment
  UCR158325  Anthriscus caucalis A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30072 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
  JEPS83426  Antirrhinum coulterianum David M. Thompson 1983-5-10 300 B Riverside Lake Elsinore Elsinore Quad. (7.5', 1953) (Railroad Canyon road) 548 Comment
  SBBG122774  Antirrhinum coulterianum A. Parikh 1990-4-27 159 Riverside W of Rawson Cyn, 1.7 km WSW of jct of Crown Valley Rd and Rawson Rd 696 Comment
  SD4551  Antirrhinum coulterianum Fidella G. Woodcock 1928-4-27 Riverside Valley between San Jacinto Mountain and Warner's Hot Springs Comment
  SD136754  Antirrhinum kelloggii Steve Boyd, Orlando Mistretta 1992-4-22 7007 Riverside San Mateo Canyon Wilderness Area. Indian Potrero Trail from Verdugo Potrero to Indian Potrero Trail on ridge between Talega Canyon and Nickel Canyon 609 Comment
  UCR280616  Antirrhinum kelloggii Mitch Provance, Jeremiah George, Matt K. Beyers 2017-4-3 417- 034 Riverside Gavilan Hills, Alberhill Canyon, dirt road portion of Lake St., about 0.8 miles N of Hwy. 15 at Alberhill. 457 Comment
  POM29606  Antirrhinum nuttallianum subsp. nuttallianum Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  POM354920  Antirrhinum nuttallianum subsp. nuttallianum J. D. Olmsted 1962-5-10 3659 Riverside West of crest between Sandia and DeLuz Creeks along Murrieta to DeLuz Road. 206 Comment
  RSA495454  Antirrhinum nuttallianum subsp. nuttallianum Steve D. Boyd, Tim S. Ross, L. Arnseth 1989-3-18 2982 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  UCR172768  Apiastrum angustifolium Abby Sirulnik, Ian G. Gillespie 2000-5-14 54 Riverside Peninsular Ranges; Santa Ana Mtn. Foothills, Temescal Canyon. Indian Truck Road exit off of Interstate 15, c. 0.9 mi. S on De Palma Road 427 Comment
  RSA69364  Aquilegia formosa var. hypolasia Verne Grant, Alva Grant 1951-7-19 16092 Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  RSA783071  Aquilegia truncata J. D. Olmsted 1958-9-21 s.n. Riverside N. fk. San Jacinto River drainage area. Dark Canyon just above its intersection with the Banning Idyllwild road. 1509 Comment
  UCR52584  Arabis Kathy Harper 1988-5-14 s.n. Riverside San Jacinto Mtns, along dirt road to the north of Castille Canyon Dr. at Poppet Flat, off Hwy 243. Comment
  RSA0129548  Arabis johnstonii P. A. Munz, P. C. Everett 1950-6-23 14911 Riverside 2 mi. NW of Pipe Creek, south end of San Jacinto Mountains 1402 Comment
  RSA482605  Arabis perennans E. C. Jaeger s.n Riverside Lower Tahquitz Valley, San Jacinto Mts. 1768 Comment
Read comments
Nov 5 2011
  RSA134779  Arabis pulchra A. Martin s.n. Riverside Riverside Comment
  UC1929401  Arceuthobium campylopodum Scott D. White, Teresa Salvato, Lia DeMarco, Jessica Christian 2001-6-30 8651 Riverside SAN JACINTO MTS: Idyllwild area; Strawberry Fuelbreak between Inspiration Point and Strawberry Creek. I.e., southwest terminus of Double View Dr. west to creek. Comment
  RSA629170  Arctostaphylos Jon E. Keeley 1992-7-17 16796 Riverside Road to Thomas Mountain (5S15), 5.2 km north of Toolbox Spring. 1840 Comment
  UCR4057  Arctostaphylos glandulosa Carole Sims 1965-4-28 s.n. Riverside San Jacinto Mtns, 10 mi from Banning toward Idyllwild 1067 Comment
  SEINET12524571 Image available Arctostaphylos glandulosa M. F. Buell, Helen F. Buell 1961-1 s.n. Riverside Santa Ana mts, S of Corona. 1158 Comment
  POM367284  Arctostaphylos glandulosa subsp. glandulosa H. de Forest, Jack Rempel 1933-6-25 18035 Riverside San Jacinto Mts. 1098 Comment
  SD136856  Arctostaphylos glandulosa subsp. glandulosa Steve Boyd, Tim Ross 1992-5-4 7208 Riverside Southern Santa Aana Mountains, San Mateo Canyon Wilderness Area. Oak Flats area east of Verdugo Potrero. 730 Comment
  RSA629453  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-7-17 16809 Riverside Rd. to Thomas Mtn. (5S15), 9.5 km north of Toolbox Spring. 1640 Comment
  UCR241480  Arctostaphylos glandulosa subsp. mollis Tracy Tennant, Jeffrey Ross 1998-4-9 MOR- 1014 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Wood Canyon, east of upper Potrero Canyon 1305 Comment
  UC21899  Arctostaphylos glandulosa subsp. zacaensis W. L. Jepson May 17 1901-Jun 1 1901 1289 Riverside s side San Jacinto Mts. 1584 Comment
  RSA631729  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19291 Riverside Highway 79, at Radec. 580 Comment
  RSA631741  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19267 Riverside Highway 79, 5 km west of Radec. 580 Comment
  RSA631745  Arctostaphylos glauca Jon E. Keeley 1992-6-12 15530 Riverside Road to Elsinore Peak, 1.5 km south of Highway 74. 850 Comment
  RSA631817  Arctostaphylos glauca Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20164 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 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
  UCR63999  Arctostaphylos glauca Richard Minnich 1990-8-23 s.n. Riverside Lakeview Mtns., off Juniper Springs Road near Juniper Springs 640 Comment
  UCR91730  Arctostaphylos glauca A. C. Sanders, J. Goetzen 1996-5-1 18125 Riverside San Bernardino Mtns., Morongo Indian Reservation, along dirt road in Hathaway Creek Canyon, north of Banning 915 Comment
  RSA228813  Arctostaphylos glauca var. glauca Colin M. Wainwright, Larry E. DeBuhr 1972-2-10 589 Riverside Cleveland National Forest. 5 mi. south of Lake Elsinore along Forest Route 7S04. Comment
  RSA633536  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16696 Riverside Road to Santa Rosa Mountain (7S02), 12.3 km south of Highway 74. 2190 Comment
  RSA633538  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Melanie Baer-Keeley 1993-4-23 22661 Riverside Road to Santa Rosa Mountain. 2000 Comment
  RSA633594  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16691 Riverside Road to Santa Rosa Mountain (7S02), 12.3 km south of Highway 74. 2190 Comment
  RSA633597  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-17 16704 Riverside Road to Santa Rosa Mountain (7S02), 12.3 km south of Highway 74. 2190 Comment
  RSA633623  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16697 Riverside Road to Santa Rosa Mountain (7S02), 12.3 km south of Highway 74. 2190 Comment
  RSA633722  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20118 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  RSA633729  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16615 Riverside Road to Santa Rosa Mountain, (7S02), 1.8 km south of Highway 74. 1560 Comment
  RSA633741  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20111 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  RSA633745  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20117 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  CAS-BOT-BC44327  Arctostaphylos pringlei subsp. drupacea J. Ewan 1929-6-16 3586 Riverside Lily Creek Canyon above Idyllwild, San Jacinto Mts. 1676 Comment
  CHSC90113  Arctostaphylos pringlei subsp. drupacea Donald G. Miller III 1998-7-26 Riverside Santa Rosa Mountain Road, 1 km south of Highway 74. [Longitude on label is 117 degrees 30' 71'.] 1400 Comment
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Nov 8 2020
  RSA635812  Arctostaphylos pungens Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20101 Riverside Highway 371, 1 km east of Anza. 1220 Comment
  UCR178145  Arctostaphylos pungens Jeffrey Ross, T. B. Salvato 1998-5-14 MOR- 149 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
  RSA636021  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19493 Riverside West of Temecula, off Calmara Rd., 1 km south of Carancho Rd. and west of De Luz Rd., eastern Santa Margarita Mountains. 600 Comment
  RSA636025  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18798 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  RSA636156  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18812 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  RSA636158  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18814 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  RSA636172  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19481 Riverside West of Temecula, off Colman Rd., 0.8 km north of Carancho Rd. and west of De Luz Rd., eastern Santa Margarita Mountains. 590 Comment
  RSA636179  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19474 Riverside West of Temecula, off Colman Rd., 0.8 km north of Carancho Rd. and west of De Luz Rd., eastern Santa Margarita Mountains. 590 Comment
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Jun 8 2012
  UC1979623  Arctostaphylos rainbowensis D. L Banks, Steve Boyd 1995-3-15 0076 Riverside NW Palomar Mtns., Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., Dorland Mtn. area. Comment
  RSA0048325  Arctostaphylos tomentosa Elliott Waite 1950-4-30 s.n. Riverside Vanderventer Flats. 1524 Comment
  UCR56014  Argemone munita J. A. Adams 1965-5-9 206 Riverside San Jacinto Mtns., NE side of Mtns, Palm Springs Area, 1 mi below tramway up Mt. San Jacinto 915 Comment
  UCR94645  Argemone munita subsp. argentea Scott D. White 1996-5-27 4074 Riverside Badlands, Jackrabbit Canyon, east of Moreno Valley and south of Calimesa, between Hwy 60 and Gilman Springs Road. 610 Comment
  RSA105994  Argemone munita subsp. munita Gerald B. Ownbey 1954-5-22 2112 Riverside 2.8 miles se of Palm Springs. Comment
  CLARK-A1528-4464  Aristida adscensionis John C. Roos 1952-4-9 5508 Riverside Mt. Rubidoux 365 Comment
  CLARK-A1656-851  Aristida adscensionis Jon Mark Stewart 1983-11-7 83-57 Riverside Indio Hills 121 Comment
  LA9312  Aristida adscensionis H. S. Yates; 1937-3-23 6648 Riverside 15 N. N. W. of Mecca Comment
  SEINET3223161 Image available Aristida adscensionis George Helmkamp 1995-3-16 Riverside Colorado Desert; desert pavement on alluvial fan below rocky slopes of Coxcomb Mountains, W of Rice Road, 10.3 miles NE of Desert Center. 200 Comment
  UC37469  Aristida adscensionis C. R. Orcutt 1890-4-24 Riverside Colorado Desert Comment
  UCR52011  Aristida adscensionis Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2130 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  UCSB299  Aristida adscensionis Don Graney 1953-3-21 165 Riverside collected 13.0 mi E, in the Colorsdo Desert Indo - Indio Comment
  UC1130848  Aristida purpurea H. S. Yates 1937-6-27 6711 Riverside Lower San Jacinto River Canyon San Jacinto Quadrangle Comment
  UC573785  Aristida purpurea H. S. Yates 1937-6-27 6711 Riverside Lower San Jacinto River Canyon San Jacinto Quadrangle Comment
  UCD56534  Aristida purpurea var. fendleriana A. A. Beetle 1946-6-10 4405 Riverside Near Palm Springs. Comment
  UCR244384  Aristida purpurea var. longiseta Jim Andre 2012-4-16 20957 Riverside Southern Mojave Desert, Joshua Tree National Park; north side of Mt Ryan at Sheep Pass Campground area 1370 Comment
  CAS-BOT-BC137529  Aristida purpurea var. nealleyi Carl B. Wolf 1932-5-24 3640 Riverside North base of San Jacinto Mountains. Snow Creek Canyon. 0.5 mile below Fish Hatchery. 548 Comment
  RSA544392  Aristida purpurea var. parishii Steve Boyd 1991-5-30 6320 Riverside Winchester Valley, SE end of Double Butte, just N of Winchester, 1/2 mile W of Highway 79 457 Comment
  RSA596672  Artemisia californica Darin L. Banks, Lauren Raz 1996-11-5 1146 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, S of San Gabriel Church; Along a newly established firebreak along a NW-SE running ridgeline, near the water tank. 402 Comment
  SDSU6156  Artemisia californica S. J. Barnhart 1966-4-17 660417 -11 Riverside South-west facing slope of small hill 0.1 mi. east of McAllister St. along the Metropolitan Water Co. utility road (dirt), which is 1.5 mi. south-east of the intersection of McAllister St. and Victoria Ave. 457 Comment
  UC29672  Artemisia dracunculus H. M. Hall 1901-6-8 2012 Riverside San Jacinto River Canyon San Jacinto Mountains, San Jacinto River Canyon 762 Comment
  CAS-BOT-BC93651  Artemisia ludoviciana subsp. incompta Louis C. Wheeler 1931-10-4 171 Riverside Strawberry Valley, San Jacinto Mts. 1584 Comment
  UC129480  Artemisia ludoviciana subsp. incompta H. M. Hall 1907-7-2 8006 Riverside vicinity of Riverside; Santa Ana River bottoms 274 Comment
  OBI45713  Artemisia nova David Charlton 1986-8-18 578 Riverside Capitol reef National Park, Grand Wash Trail above the campground and the Fremont River 1646 Comment
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Apr 9 2015
  RSA0119962  Arundo donax Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-24 9073 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 5.25 air miles southeast of the summit of Martinez Mountain. 621 Comment
  RSA496466  Asclepias californica Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-31 3082 Riverside Vail Lake area, S of Hwy 79, Kolb Creek drainage, W of Woodchuck Rd. 488 Comment
  UCSB4928  Asclepias eriocarpa Kamb, Peter 1948-7-10 Riverside Hall Canyon, San Jacinto Mts. 1645 Comment
  UCR163056  Asclepias erosa B. G. Pitzer, G. R. Ballmer 2000-10-14 4234 Riverside Sonoran (Colorado) Desert, large wash c. 5.3 miles east of Ford Lake Rd. and 1 mile west of Wiley's Well Rd., off gasline road c. 200 yards south of Hwy I-10 115 Comment
  RSA388392  Asclepias fascicularis R. F. Thorne, Steve Boyd, E. W. Lathrop 1985-7-18 61206 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: along Cole Canyon. 535 Comment
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Jun 30 2018
  RSA90127  Asclepias fascicularis E. K. Balls, P. C. Everett 1953-8-19 18538 Riverside Head of Palm Canyon, where stream crosses Hwy 74 on Palms to Pines Hwy. 1372 Comment
  UC23001  Asclepias fascicularis Geo. F. Reinhardt June 1897 Riverside San Jacinto Valley Comment
  CDA39816  Asclepias subulata W. E. Henson Nov 1937 s.n. Riverside Blythe. 0 Comment
  RSA343874  Aspidotis californica R. F. Thorne, Walter Wisura, Earl Lathrop, Sara Meury 1985-5-18 60664 Riverside Santa Rosa Plateau. Oak-woodland with chaparral understory at edge of Cleveland National Forest 610 Comment
  CLARK-A1528-159  Aster hesperius John C. Roos 1951-9-25 5258 Riverside Riverside 259 Comment
  RSA800104  Astragalus aridus Duncan S. Bell, Kim Clark, Ingrid Crickmore, Bob Ellis, Keir Morse, Gene Ratcliff 2013-4-7 4767 Riverside East side of the Arica Mountains; west side of Rice Valley approximately 6 air miles southeast of the ghost town of Rice or approximately 5.3 air miles east of Priests Well. 198 Comment
  RSA689493  Astragalus didymocarpus var. didymocarpus Scott D. White 2001-4-19 8383 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
  UCR22080  Astragalus didymocarpus var. obispoensis Steve Boyd 1980-5-3 182 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 625 Comment
  UCR251991  Astragalus douglasii A. C. Sanders, T. B. Salvato 2014-7-2 41162 Riverside Peninsular Range; San Jacinto Mtns., Fobes Canyon, c. 1/2 mile south of Fobes Ranch along Fobes Ranch Rd. 1555 Comment
  CAS-BOT-BC178449  Astragalus douglasii var. parishii Ira L. Wiggins 1966-6-4 20670 Riverside 2 mi. SW of Idyllwild 1621 Comment
  POM2002  Astragalus douglasii var. parishii I. M. Johnston 1918-4-3 s.n Riverside San Jacinto Mountains, San Jacinto Canyon 685 Comment
  POM48194  Astragalus douglasii var. parishii Mary F. Spencer 1919-6-18 1190 Riverside San Jacinto Mtns. Comment
  UC1128783  Astragalus douglasii var. parishii H. S. Yates 1936-8-29 6382 Riverside near Pine Flat; San Jacinto Quad., near Pine Flat Comment
  RSA321311  Astragalus filipes L. B. Ziegler 1972-5-17 457 Riverside San Jacinto Mtns. Hemet (Garner) Valley. 1418 Comment
  UC126875  Astragalus lentiginosus var. coachellae H. M. Hall 1905-4-14 5757 Riverside Whitewater , Whitewater (Colorado Desert) 240 Comment
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Feb 1 2011
  UC1929755  Astragalus lentiginosus var. coachellae Scott D. White 2001-4-18 8367 Riverside COACHELLA VALLEY: Palm Springs. Northeast corner of 30th Ave. and Devall St. Comment
  UCR161367  Astragalus lentiginosus var. coachellae Mark A. Elvin 2005-4-25 4217 Riverside Northern Sonoarn Desert, Coachella Valley; N of Palm Springs; N of 110; south of Dillon Road; east of Indian Avenue 244 Comment
  UCR6004  Astragalus lentiginosus var. coachellae Barry A. Vittor 1966-3-18 s.n. Riverside Western Colorado Desert, [Coachella Valley], just east of Varner Road [between Flat Top Mtn. and Edom Hill, based on el. given] 152 Comment
  JEPS54817  Astragalus pachypus var. jaegeri Frank W. Peirson 1928-3-24 Riverside Temecula River Road s Dripping Spring; Temecula River Road s of Dripping Spring 457 Comment
  CAS-BOT-BC194137  Astragalus pomonensis C. Epling; J. Ewan 1933-6-1 s.n. Riverside 5 mi. above Corona, Temescal Canyon Comment
  POM122364  Astragalus pomonensis Marcus E. Jones 1926-5-29 s.n Riverside South of Temecula. Comment
  RSA618384  Astragalus pomonensis D. L. Banks 1997-5-5 1981 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
  SEINET238670  Astragalus pomonensis A. C. Sanders, T. B. Salvato 2000-5-25 23401 Riverside Menifee Valley: south of Newport Road north of Holland Road. and east of Bradley Road 2 mies due east of Ralilraod Can 460 Comment
  RSA516886  Athysanus pusillus Steve Boyd 1986-3-1 1373 Riverside Gavilan Hills, Gavilan Plateau: 1/4 mile south of Harford Springs County Park. 640 Comment
  SBBG128628  Athysanus pusillus A. C. Sanders, T. W. Chumley 2013-4-2 40745 Riverside Temescal Cyn between Horsethief Cyn Rd and Hostettler Rd, near I-15 Fwy, SE of Corona (Lee) Lake 377 Comment
  UCR162401  Athysanus pusillus 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
  POM126265  Atrichoseris platyphylla Martha Hilend 1927-4-2 s.n. Riverside Box Canyon near Shaver's Well, Colorado Desert. Comment
  RSA124444  Atrichoseris platyphylla Percy C. Everett, E. K. Balls 1958-4-29 23028 Riverside 10.5 miles W of New Cyama. 10.8 miles NE and N from Desert Center along road to Rice and Vidal jct 274 Comment
  RSA695436  Atrichoseris platyphylla Scott D. White, Michael Honer 2003-5-14 9290 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  RSA776685  Atrichoseris platyphylla Duncan S. Bell, Amanda Turek 2010-4-10 798 Riverside Riverside Mountains; southern section of the mountain range; approximately 1 air mile southwest of Riverside Mountain Peak. 269 Comment
  RSA643293  Atriplex canescens R. D. Goeden, D. W. Ricker 1964-1-23 s.n. Riverside Coachella Valley: Indio, Jefferson St. at Hwy 111, near Whitewater River Channel., 33 42'30''N, 116 16'W 15 Comment
  RSA736730  Atriplex canescens Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10685 Riverside Soboba Indian Reservation- Indian Creek and adjacent uplands, from confluence w/ San Jacinto River to +/- 2 miles upstream. 534 Comment
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Sep 26 2009
  SEINET3090648 Image available Atriplex canescens H. S. Gentry 1954-7-24 14249 Riverside Aguanga Comment
  SEINET3930588  Atriplex canescens R. L. Piemeisel 1913-8-17 3645 Riverside Crestmore.; 0 Comment
  UC850762  Atriplex canescens Carl B. Wolf 1932-10-13 4307 Riverside Cottonwood Springs Colorado Desert, , Cottonwood Springs (Eagle Mts.) 289 Comment
  UCD97289  Atriplex canescens K. Esau 1935-6-15 s.n. Riverside Riverside County. Comment
  UCR169926  Atriplex canescens A. C. Sanders, J. Andre , P. J. MacKay, Tim Thomas & CNPS Fld Trip 2005-2-26 29128 Riverside Sonoran (Colorado) Desert, SE of Hwy 177 toward dunes above Palen Dry Lake, SE end of Coxcomb Mtns. 168 Comment
  RSA5450  Atriplex canescens var. linearis C. B. Wolf 1932-10-13 s.n. Riverside NE side of S.P.R.R. at Durmid on N.E. side of Salton Sea -61 Comment
  CAS-BOT-BC170236  Atriplex canescens var. macilenta Ira L. Wiggins 1941-3-24 9585 Riverside Along roadside on east side of Salton Sea, 1 mile north of Imperial County Line Comment
  RSA591763  Atriplex coronata var. notatior J. C. Roos 1965-6-30 s.n. Riverside Perris. Comment
  UCD169503  Atriplex coronata var. notatior Mitch Provance 2005-5-17 6594 Riverside Warm Springs Valley, Terra Cotta, Nichols Rd. Wetland at Alberhill Creek, c. 100 yards SE of the Durant RR siding, the site bordered along the NW by Pierce St. and on the N by Alberhill Creek, with Baker St. more or less bisecting the collection site. 396 Comment
  UCR159814  Atriplex coronata var. notatior Mark A. Elvin 2005-5-24 4316 Riverside Southern Coastal Slope; Perris Basin, Perris, east of I-215, south of San Jacinto River, NW corner of junction of Ellis Ave and first road east of I-215 427 Comment
  UCR67327  Atriplex coronata var. notatior D. E. Bramlet 1990-7-25 2059 Riverside Vicinity of Perris, c. 860 m west of the intersection of Ellis Ave. and Sherman Road; < 200 m north of Ellis Ave. 473 Comment
  RSA0015057  Atriplex davidsonii D. E. Bramlet, Fred M. Roberts, I. Anderson 2005-6-10 3876 Riverside 4.5 miles west of Hemet, 2000 feet south of Stetson and 700 feet east of California. 456 Comment
  UCR208451  Atriplex glauca R. E. Riefner Jr. 2005-12-30 05- 792 Riverside city of Riverside, Gramercy Place near La Sierra Ave 27 Comment
  SD87786  Atriplex hymenelytra F. W. Peirson 1924-12-30 5415 Riverside 1000 Palms Canon 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
  RSA478371  Atriplex polycarpa L. S. Rose 1967-12-19 s.n. Riverside La Quinta. 15 Comment
  RSA478375  Atriplex polycarpa Allen 1920-10 s.n. Riverside Palm Springs. Comment
  UCD97788  Atriplex serenana Steve Boyd; Tim Ross, Laurel Arnseth 1989-6-11 3731 Riverside Vail Lake area, wetlands of Wilson Creek, east of the lake. 472 Comment
  UCR232022  Atriplex suberecta John F. Green 2008-4-24 10- 01 Riverside Peninsular Range; SE Gavilan Hills, SW of Perris along Hwy 74, vicinity of Eugene St. 506 Comment
  CAS-BOT-BC146195  Avena barbata B. Pitzer 1997-4-1 3045 Riverside Lakeview Mountains, ca. 0.75 air mile south southwest of Mount Rudolph, ca. 1 air mile northeast of Contour (Juniper Flats) Road. 665 Comment
  UCR92089  Avena barbata Scott D. White 1995-3-30 2685 Riverside San Jacinto Valley, Moreno Valley: base of Badlands slopes, north of Highland Blvd & west of Theodore St 579 Comment
  RSA600393  Avena sativa V. W. Steinmann 1996-4-13 829 Riverside East of route 15 along Temescal Canyon Road 1.3 kilometers southeast of junction with Indian Truck Trail 350 Comment
  RSA209596  Ayenia compacta Richard A. weaver 1970-1-14 s.n. Riverside Chuchwalla Mts. (west portion of range). Gravelly canyon bottom. Eaten by mammals. Comment
  CAS-BOT-BC98777  Baccharis brachyphylla John C. Roos 1950-12-2 5028 Riverside Monson Canyon, Eagle Mts. 1066 Comment
  POM350337  Baccharis emoryi Lester H. Cushman 1931-11-1 14223 Riverside Near Pedley, Santa Ana River Comment
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Dec 4 2011
  RSA655084  Baccharis emoryi Scott D. White 1999-11-12 7630 Riverside Murrietta Area: Corner of Nutmeg and Clinton Keith. 410 Comment
  CAS-BOT-BC106748  Baccharis salicifolia W. R. Dudley 1903-12-26 s.n. Riverside Palm Canyon [Canon] Comment
  UC484085  Baccharis salicina C. B. Wolf 1931-3-13 Riverside 2 mi n Blythe 152 Comment
  RSA0031548  Baccharis sarothroides Duncan S. Bell 2013-1-30 4438 Riverside The Mecca Hills; in an unnamed canyon between Thermal Canyon and Painted Canyon, just to the west of Mecca Hills peak 1642. 138 Comment
  CAS-BOT-BC99868  Baccharis sergiloides S. B. Parish 1916-5-13 10832 Riverside Cottonwood Springs, Colorado Desert 792 Comment
  RSA772579  Baccharis sergiloides Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5044 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 W116.66011 750 Comment
  UCR121819  Baccharis sergiloides A. C. Sanders, Mark Elvin, Jane Rodgers 2001-8-17 24601 Riverside Mojave Desert, Little San Bernardino Mtns, Stubbe Spring, Joshua Tree National Park, 4.35 mi. (airline) SW from park road in Lost Horse Valley 1372 Comment
  CDA41203  Bacopa monnieri G. D. Barbe 1983-1-24 4035 Riverside Desert Island Country Club, northeast of Rancho Mirage. 0 Comment
  RSA328945  Bacopa monnieri Brad Ballen 1982-12-27 588487 Riverside growing at the edge of a lake at desert Island Country Club, 71-777 Frank Sinatra Drive Comment
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Dec 28 2011
  CAS-BOT-BC295900  Bahiopsis parishii B. D. Stark 1932-6-15 3742 Riverside Colorado Desert. Eagle Mts., above Utopia 228 Comment
  POM172024  Bahiopsis parishii Philip A. Munz 1930-5-1 11924 Riverside One mile east of Cabazon Comment
  SD258859  Bahiopsis parishii Sarah J. De Groot, Grace Cho 2016-4-4 7769 Riverside Santa Rosa Mountains, SW of palm Desert, N of Alpine Village and Highway 74; Along Dunn Road between Haystack and Asbestos Mountains 1232 Comment
  RSA27474  Baileya pauciradiata I. L. Wiggins 1941-3-27 9687 Riverside South end of Coxcomb Mountains 8 miles northeast of Desert Center. 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
  UCR166014  Baileya pauciradiata Nathan Moorhatch 2005-2-17 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, east edge of Santa Rosa Mtns., La Quinta, west of Washington St., between Ave. 48 and Lake La Quinta Dr., 4 acre parcel 37 Comment
  UCR134610  Baileya pleniradiata Marisa Sripracha, Kyle Boyd 2004-2-14 017 Riverside Sonoran (Colorado) Desert, Myoma, near 38th Street and Washington Ave, on the Coachella Valley Preserve 120 Comment
  UCR138576  Baileya pleniradiata Steve Boyd, Orlando Mistretta 1986-3-13 1439 Riverside Sonoran (Colorado) Desert, West side of Palen Mountains, NE of Desert Center. Upper bajada at base of range 244 Comment
  RSA0042825  Bebbia juncea Duncan S. Bell, LeRoy Gross 2014-3-13 6242 Riverside Orocopia Mountains; southern section of range; approximately 3 air miles northwest of Clemens Well. 431 Comment
  LA203070  Bebbia juncea var. aspera A. M. Johnson; 1933-4-28 4239 Riverside Indian Wells highway along new mountain highway to Hemet, 2 to 3 mi. up from Palm Springs Comment
  CDA6861  Bellis perennis J. E. Davis 1959-8-31 2998 Riverside 3893 Larchwood Place, Riverside. 0 Comment
  CLARK-A1528-1368  Beloperone californica John C. Roos 1965-9-26 Riverside Santa Rosa Mountains Comment
  SEINET3862254  Beloperone californica D. W. McNeal 1975-4-18 1561 Riverside Above Palm Desert on Hwy. 74, 19.2 mi. E of its jct. with Hwy. 71.; 0 Comment
  POM17943  Berberis dictyota P. A. Munz 1923-6-14 7114 Riverside Trail from Glen Ivy to Santiago Peak Comment
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Oct 22 2011
  UC2015577  Bernardia incana A. C. Sanders with G. Helmkamp, P. MacKay, et al 1995-3-19 16177 Riverside Coachella Valley/San Jacinto Mtns. foothills: Chino Canyon near the Palm Springs tram station. Comment
  UCR94069  Bernardia myricifolia Scott D. White, Duayne Haselfeld 1996-7-2 4257 Riverside San Jacinto/Santa Rosa Mtns, Pinyon Flat area, north of Hwy 74, c. 10 road mi east of junction with Hwy 371, west-facing slope of Sugarloaf Mountain and adjacent valley 1402 Comment
  RSA334998  Beta vulgaris Steve Boyd 1985-8-7 1119 Riverside Murrieta area, Clinton Kieth Rd. just E of the Bear Creek development golfcourse Comment
  UC30574  Bidens laevis E. L. Koethen 1897-10-16 Riverside Riverside Comment
  UCR100440  Bloomeria crocea B. G. Pitzer 1997-4-20 3199 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
  RSA0107274  Boechera johnstonii John F. Emmel 2001-4-28 1699 Riverside San Jacinto Mts.; Garner Valley; NE-facing slope 0.2 air mile S of trailhead parking area for Ramona Trail. 1377 Comment
  UCR35198  Boerhavia coccinea L. B. Ziegler 1967-8-30 218 Riverside San Jacinto Valley, Vacant lots in city of San Jacinto 473 Comment
  POM258904  Boerhavia triquetra E. C. Jaeger 1939-12-3 s.n. Riverside Orocopia Mts. 366 Comment
  UCR43414  Boerhavia wrightii R. F. Thorne, R. Dahlgren 1979-8-22 53572 Riverside Joshua Tree National Monument, just south of San Bernardino Co. line near jct of road to Split Rock and 29 Palms, valley west of Pinto Mtns. 1098 Comment
  UCR109747  Bolboschoenus maritimus subsp. paludosus T. W. Fisher 1964-7-21 s.n. Riverside Peninsular Range, Temecula area, Arroyo Seco Creek at Vail Lake 457 Comment
  CLARK-A1528-5154  Bothriochloa barbinodis John C. Roos 1947-2-15 3236 Riverside Eagle Mountains Comment
  UCR89551  Bothriochloa barbinodis A. C. Sanders, O. F. Clarke, P. J. MacKay, S. D. White, C. L. Sanders 1994-11-27 15871 Riverside San Jacinto Mtns/Colorado Desert, Palm Canyon, from Hermit's Bench upstream to just beyond the confluence with East Fork 300 Comment
  UCR33704  Bouteloua aristidoides Sears 1977-10-10 S- 531 Riverside Sonoran (Colorado) Desert, 23 mi. north of Desert Center, 3 mi. south of Hwy 62 Junction 335 Comment
  RSA683917  Bouteloua aristidoides var. aristidoides Michael Denslow 2003-9-13 1545 Riverside Shavers Valley; I-10 at Mecca Exit, Box Springs Road. (Cottonwood Spring Quad) 470 Comment
  CLARK-A1528-4513  Bouteloua barbata John C. Roos 1965-9-5 Riverside Comment
  CAS-BOT-BC145606  Bouteloua barbata var. barbata Ralph Hoffmann 1929-9-11 s.n. Riverside Thomas Valley. Comment
  JOTR29522  Bouteloua curtipendula La Doux, Tasha, Mike Bell 2006-9-6 1580 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Barker Dam Comment
  RSA645632  Bowlesia incana Scott D. White 1999-5-2 7281 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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Mar 27 2013
  CDA33896  Brandegea bigelovii Mike Lahti 2010-5-29 PDR# 1358708 Riverside Palm Desert off Hwy 74. 0 Comment
  JOTR35014  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
  SBBG54857  Brandegea bigelovii D. Keil, M. McLeod, D. Walters 1977-3-27 12059 Riverside Box Cyn Rd, ca. 20 mi ENE of Mecca, Orocopia Mtns 274 Comment
  SBBG7425  Brandegea bigelovii H. and M. Dearing 1949-4-6 6740 Riverside Box Cyn Comment
  UCR245250  Brandegea bigelovii Jim Andre 2012-3-19 21299 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
  UCR86214  Brandegea bigelovii A. C. Sanders 1995-5-23 17116 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
  CAS-BOT-BC29978  Brassica fruticulosa A. C. Sanders 2008-3-2 34418 Riverside Peninsular Range. Box Springs Mountains. Two Trees Canyon along foot trail along north side of riparian thicket. 428 Comment
  UCR21919  Brassica geniculata Steve Boyd 1980-5-11 223 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
  SD152905  Brassica rapa Steve Boyd, Orlando Mistretta 1992-4-23 7062 Riverside So. Santa Ana Mtns, San Mateo Canyon Wilderness Area. Along San Mateo Creek from Riverside County line, following San Mateo Trail upstream to the confluence with Bluewater Canyon. Local along trail on dry rocky slopes. 244 Comment
  RSA708429  Brassica tournefortii Scott D. White 2005-3-29 10826 Riverside Cabazon. Alluvial fan and benches west of San Gorgonio river and south of I-10 Freeway. West of existing gravel quarry, likely to be proposed for quarry expansion. 585 Comment
  UCR103171  Brassica tournefortii Scott D. White, Julie Greene 1997-3-12 4770 Riverside Pedley area, S foot of Jurupa Hills: Just north of State Route (Fwy) 60 at Pedley exit. 305 Comment
  UCR112596  Brassica tournefortii Mitch Provance 1998-2-17 63 Riverside Jurupa Mountains, Slopes on the W side of Sierra Blvd, c. 0.7 km NNW of the Jensen Quarry 396 Comment
  UCR89589  Brickellia arguta Bern Schwenn 1994-4-29 s.n. Riverside Little San Bernardino Mtns., Joshua Tree National Monument [now J.T. National Park], east of Lost Horse Mtns, near Mystery Hole 1315 Comment
  SBBG66119  Brickellia atractyloides Anstruther Davidson 1893-1 Riverside Palm Springs Comment
  CAS-BOT-BC106335  Brickellia atractyloides var. arguta W. L. Jepson 1928-4-24 s.n. Riverside On the rocky walls of canyon below spring, Cottonwood Spring 2407 Comment
  CLARK-A1528-174  Brickellia californica John C. Roos 1951-10-19 5324 Riverside Badlands 609 Comment
  RSA588824  Brickellia desertorum Darin L. Banks, Steve Boyd 1995-10-17 0776 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
  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
  CAS-BOT-BC100608  Brickellia oblongifolia var. linifolia H. M. Hall 1901-6-1 2142 Riverside San Jacinto Mountains, Easetern base, along the borders of the Colorado Desert Comment
  SBBG101687  Brickellia oblongifolia var. linifolia S. Boyd with T. Ross 1991-6-8 6325 Riverside Pinyon Flat at jct of Santa Rosa Mtn Rd and St Hwy 74 1400 Comment
  RSA740234  Brodiaea terrestris subsp. kernensis Scott D. White, Justin M. Wood 2008-7-8 12391 Riverside Johnson Meadow. 1439 Comment
  CAS-BOT-BC149331  Bromus arizonicus S. B. Parish 1907-4-15 6138 Riverside Western edges of the Colorado desert. Gabezon. Comment
  RSA550931  Bromus carinatus R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38110 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  SD233246  Bromus carinatus Scott D. White, Justin M. Wood 2009-5-22 12896 Riverside San Jacinto Mountains: Quinn Flat Meadow. Comment
  CSUSB427  Bromus diandrus Dean Jones 1966-4-16 Riverside Back yard of 3350 Mulberry Ave. in City of Riverside. 335 Comment
  POM122849  Bromus diandrus Marcus E. Jones 1926-6-20 s.n. Riverside 20 miles north of Idyllwild. Comment
  RSA0042648  Bromus diandrus Margaret Murphy 1983-4-15 0004 -A Riverside Located in the north section of parcel 475-090-006, lot 20 Moreno Acres of the unincorporated area known as Sunnymead. Comment
  UCR104079  Bromus hordeaceus A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20690 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
  UC1537243  Bromus madritensis subsp. rubens Gordon H. True Jr. 1935-3-11 68 Riverside Sycamore Canyon, Box Springs Box Springs; Sycamore Canyon, Box Springs 365 Comment
  CLARK-A1528-4547  Bromus orcuttianus John C. Roos 1942-6-20 994 Riverside San Jacinto Mountains Comment
  UCR97454  Bromus rubens A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19843 Riverside Lake Skinner area, lower Rawson Canyon, along road NE of Skinner Lake 457 Comment
  RSA0021329  Bromus tectorum Duncan S. Bell, Kim Clark, Keir Morse, Harry Spilman 2013-3-30 4655 Riverside Around the confluence of the San Gorgonio and Whitewater river drainages, just south of the historic Palm Springs Station, about 1.5 air miles northwest of Windy Point. 340 Comment
  UCR174326  Bromus tectorum A. C. Sanders, T. B. Salvato 2006-6-2 33089 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 579 Comment
  UCR2252  Bromus tectorum F. M. Reed 1933-5-31 7923 Riverside Santa Rosa Mtns., Santa Rosa Indian Reservation, near the bridge on the Palms to Pines Road [Vandeventer Flats] 823 Comment
  UCR260896  Bromus tectorum A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-25 41524 Riverside Moreno Valley, south side of Allesandro Blvd. west of Graham St., north of Brodiaea Ave. 488 Comment
  UCR2253  Bromus tectorum var. nudus F. M. Reed 1920-6-14 4443 Riverside San Jacinto Mountains, Open places in Strawberry Valley 1646 Comment
  UCR2260  Bromus trinii F. M. Reed 1906-3-17 917 Riverside Riverside: mouth of South fork of Arroyo Tequesquite 396 Comment
  UC1128935  Caesalpinia virgata H. S. Yates 1937-3-23 6432 Riverside Painted Canyon Thermal Quad., Painted Canyon Comment
  JEPS52588  Calandrinia ambigua W. L. Jepson 1927-4-13 11688 Riverside Painted Canyon Mecca Hills (mouth) 45 Comment
  CAS-BOT-BC438492  Calandrinia ciliata A. C. Sanders; G. Waines; B. Ehdaie; A. Aryavand 1997-3-12 19864 Riverside Lake Skinner area: lower Rawson Canyon, along road NE of Skinner Lake. 457 Comment
  SD186307  Calandrinia ciliata Andy C. Sanders 2004-4-20 27566 Riverside Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  UCR107717  Calandrinia ciliata A. C. Sanders 1997-3-1 19742 Riverside Box Springs Mountains, Riverside: S end of the range along Gernert Rd. (dirt road paralleling the mountain front), in valley draining to Box Spring Canyon. 457 Comment
  UCR60549  Calandrinia ciliata var. menziesii R. F. Thorne, M. Z. Thorne, W. Wisura 1978-5-21 52008 Riverside Santa Rosa Plateau, Mesa de Colorado 610 Comment
  UCR280980  California macrophylla Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-4-11 417- 80 Riverside Elsinore Trough, West side of Baker St., slopes just S to SE of intersection with road to the water tank. 421 Comment
  RSA757464  Callitriche marginata R. F. Thorne, E. W. Lathrop, S. Beckstrom-Sternberg, B. Martin 1982-05 55208 Riverside SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta near S. edge of plateau, approached from De Luz road. 730 Comment
  LA31714  Calocedrus decurrens Carl Epling; 1931-10-3 sn Riverside San Jacinto Mountains, Strawberry Valley 1523 Comment
  UCSB246  Calocedrus decurrens White, Arthur 1960-5-14 Riverside At side of road between Banning and Idyllwild, 14.2 mi. s. of Hwy. 70 and 99 1676 Comment
  SEINET10531058  Calocedrus decurrens David B. Dunn, L. S. McClung 1939-10-22 Dunn UMO 46538 Riverside Native tree collected in the vicinity of Idylwild in the San Jacito Mts. 2134 Comment
  SD236126  Calochortus concolor Jeffrey Ross, Sam Lau, Jenny Phui 1998-5-31 113 Riverside San Bernardino Mtns. Region: Morongo Indian Reservation; Lion Canyon 755 Comment
  UCSB26905  Calochortus concolor Wilken, Dieter 1969-6-30 Riverside On road to Santa Rosa Mountain, 4.0 miles east of California State Highway 74, Santa Rosa Mtns Comment
  UCSB626  Calochortus invenustus Wilson, Richard 1958-5-18 Riverside At Pinon Flats on State Highway Comment
  RSA582821  Calochortus palmeri var. munzii Mark Elvin, Orlando Mistretta 1995-6-21 47 Riverside San Jacinto Mts. Garner Valley; along both sides of Hwy 74 at mi. 70.0; in adjacent ditch and meadows; Comment
  RSA641092  Calochortus palmeri var. munzii Orlando Mistretta, Mark Elvin 1995-6-19 1773 Riverside San Jacinto Mountains. 1448 Comment
  POM123271  Calochortus splendens Marcus E. Jones 1903-5-11 s.n. Riverside Banning. 701 Comment
  POM212901  Calochortus splendens Philip A. Munz 1941-5-18 16657 Riverside North end of Santa Rosa Ranch, Elsinore Mts. Comment
  RSA369045  Calochortus splendens M. M. Thompson 1947-6-9 C- 2080 Riverside Los Alamos Canyon, Elsinore 762 Comment
  RSA487424  Calochortus splendens Steve Myers 1988-5-17 s.n. Riverside Santa Rosa Plateau area W of Murrieta, Via Majorca .25 mi. N of the intersection with Avenida Arboles. Comment
  RSA501010  Calochortus splendens Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-1 3129 Riverside Vail Lake area, ridge-top of volcanic substrate w/clay soil, 2 mi W of dam, at edge of escarpment E of Pauba Valley. 518 Comment
  RSA586800  Calochortus splendens Darin L. Banks, Steve Boyd 1995-5-3 238 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
  RSA68622  Calochortus weedii var. weedii Frank W. Peirson 1920-6-22 2180 Riverside Grade south of Temecula River, going toward Dripping Spring 427 Comment
  UCR79209  Calochortus weedii var. weedii Steve Boyd, T. S. Ross 1992-6-10 7624 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, near the junction of Tenaja Road (7S01) and Los Alamos Road (7S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek 405 Comment
  RSA674970  Calycadenia tenella Scott D. White, Teresa Salvato 2001-6-8 8575 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  SD215390  Calycoseris parryi Steve Boyd, Dave Bramlet 1991-5-13 6243 Riverside Domenigoni Hills, North side of Domenigoni-Diamond Valleys east-southeast of Winchester. Vicinity of ultramafic outcrop on ridge top South of Sounth end of Warren Road. 548 Comment
  UC667272  Calycoseris parryi Annie M. Alexander and Louise Kellogg 1941-5-11 2146 Riverside 1.5 mi n of Cottonwood Spring; Colorado Desert, Eagle Mountains 975 Comment
  UC963812  Calycoseris parryi Helen K. Sharsmith 1952-4-10 4060 Riverside ca. 5 mi ne of, Joshua Tree National Monument Cottonwood Springs; Mojave Desert, Smoke Tree Wash 853 Comment
  RSA776960  Calycoseris wrightii Thomas Stoughton, Chrsiti Gabriel, Stephanie Rockwood 2011-3-30 910 Riverside McCoy Wash, east side of McCoy Mountains, pavement plain, approximately 7 miles north of I-10. 290 Comment
  SD45181  Calycoseris wrightii Helen K. Sharsmith 1952-4-11 4064 Riverside Northwest base of Chuckawalla Mountains, 7 miles south of Highway 60-70. 534 Comment
  SEINET8481392 Image available Calycoseris wrightii A. C. Sanders, Mitch Provance, Fred M. Roberts 2013-3-22 40646 Riverside Sonoran (Colorado) Desert; Chuckwalla Mountains, Graham Pass at large wash crossing Graham Pass Rd. north of the summit 410 Comment
  UC1136649  Calyptridium monandrum H. S. Yates 1937-3-23 6405 Riverside 2 mi n of Palm Springs 213 Comment
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Apr 16 2011
  UCR177643  Calyptridium monandrum S. J. Myers, John Green 2003-4-23 s.n. Riverside San Jacinto Mtns., powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  RSA0089417  Calyptridium monospermum Michael G. Simpson, Jamie Hall, Michael Silveira, Lori Simpson 2007-6-16 2896 Riverside Little Taquitz Valley, San Jacinto Mountain, along trail, ca. 0.1 mi north of junction with Pacific Coast[Crest] Trail, ca. 0.9 mi northeast of Tahquitz Peak. 2454 Comment
  UCR121325  Calystegia macrostegia subsp. arida A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-22 24994 Riverside Peninsular Range; San Jacinto Mtns. Region, The Badlands; summit of Mt. Eden, SW of Beaumont 717 Comment
  UC1184269  Camissonia Peter H. Raven 1958-2-15 11568 Riverside Corn Springs Chuckawalla Mountains Comment
  RSA465925  Camissonia bistorta Richard C. Barkelew, Mark Morris 1929-3-10 s.n. Riverside Indian Canyon , San Jacinto Mts Comment
  UCR58489  Camissonia bistorta 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
  UCR59923  Camissonia bistorta Ed LaRue 1989-4-25 s.n. Riverside 2 mi (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouth of Rice and McVicker Canyons 488 Comment
  RSA792481  Camissonia boothii subsp. condensata Justin M. Wood, Dustin Ray 2011-4-28 3847 Riverside Sonoran Desert: Chuckwalla Valley; Eagle Mountain Road, 2.8 miles west of Desert Center and 0.9 miles north of I-10. 312 Comment
  UCR233165A  Camissonia boothii subsp. condensata Jim Andre, Glenn L. Clifton 2011-2-22 17446 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  RSA145183A  Camissonia brevipes subsp. brevipes E. G. Linsley, J. W. MacSwain 1960-3-2 60 -6 Riverside Colorado Desert, 2 miles west of Desert Center. Comment
  RSA13902  Camissonia californica P. A. Munz, D. Keck 1922-4-9 4750 Riverside Palm Springs. 76 Comment
  RSA6087  Camissonia californica Carl B. Wolf 1932-5-25 3670 Riverside San Jacinto Mountains. 1/2 mile below Fish Hatchery, lower edge of upper Sonoran zone, Snow Creek, north base of mountains. 549 Comment
  RSA775565  Camissonia californica Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-5-16 1254 Riverside Haugen Lehmann off I-10, Pacific Crest Trail (PCT) in canyon directly W. of Whitewater. 675 Comment
  UCR168277  Camissonia cardiophylla M. B. Dunkle 1933-3-4 3048 Riverside Sonoran (Colorado) Desert, Painted Canyon 91 Comment
  UCR18418  Camissonia chamaenerioides A. C. Sanders, S. Hagopian 1977-4-17 451 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, Irish Wash near Corn Springs 671 Comment
  NY679520  Camissonia cheiranthifolia N. D. Atwood 1993-3-27 17699 Riverside Corona del Mar State Park along Newport Coast Drive. 0 Comment
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Jul 14 2012
  CSUSB195  Camissonia claviformis W. W. Mayhew 1959-2-3 Riverside 10 miles east of Desert Center Comment
  UCR166017  Camissonia claviformis Nathan Moorhatch 2005-2-17 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, east edge of Santa Rosa Mtns., La Quinta, west of Washington St., between Ave. 48 and Lake La Quinta Dr., 4 acre parcel 37 Comment
  RSA448927  Camissonia claviformis subsp. aurantiaca M. B. Dunkle 1935-3-17 4407 Riverside Colorado Desert. 610 Comment
  UCR44446  Camissonia confusa A. C. Sanders 1986-6-1 6535 Riverside San Jacinto Mountains, Trail toward Spitler Peak from 'Hurkey Creek Camp to Bonita Vista' [=Apple Canyon] Road 1829 Comment
  RSA525443  Camissonia hirtella Steve Boyd, Dave Bramlet 1990-4-29 4488 B Riverside Lake Skinner County Park, S flank of Bachelor Mountain. Comment
  RSA614392  Camissonia hirtella D. L. Banks, Victor W. Steinmann 1997-3-13 1527 A Riverside Agua Tibia Mountains: Vail Lake area, north and just S of Hwy. 79. The hills east of the Dripping Springs alcove and west of Vail Lake Marina Road, that were burned in the Vail fire of May 1996. 476 Comment
  RSA715188  Camissonia hirtella S. J. Myers, John Green 2003-4-4 s.n. Riverside San Jacinto Mountains: powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain. 1189 Comment
  UCR162405  Camissonia hirtella 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
  UCR239879  Camissonia hirtella O. F. Clarke 2004-3-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  RSA683858  Camissonia ignota Scott D. White, Michael Honer 2003-4-4 8963 Riverside Temescal Valley: Dissected bajada bench, below and east of Horsethief Canyon; immediately S of I-15 Freeway. 366 Comment
  CSUSB864  Camissonia micrantha Douglas A. Morgan 1968-5-4 680504 10 Riverside San Jacinto Mountains Near road from Banning to Idyllwild; San Jacinto Mountains. 914 Comment
  UCR50416  Camissonia micrantha D. C. Hawks 1988-3-27 s.n. Riverside between Aguanga and Anza, southeast of intersection of Dove and Sycamore Streets, south of Hwy 371. Tule Creek drainage, 1.75 mi airline northeast of Aguanga 762 Comment
  RSA449053  Camissonia refracta Anstruther Davidson, E. C. Jaeger 1922-3-29 s.n. Riverside Box Canon near Mecca. Comment
  RSA480033  Camissonia refracta Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, Tim S. Ross 1988-3-10 2160 Riverside Palen Pass at the north end of the Palen Mountains. 500 Comment
  RSA72280  Camissonia refracta Robert L. Dressler 1949-3-19 422 Riverside Coxcomb Mountains, 23 miles NE of Desert Center. Comment
  UCR199837  Camissonia refracta Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11283 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage, within boundaries of U.S. Navy Chocolate Mountains Aerial Gunnery Range 570 Comment
  CLARK-A1528-3362  Camissonia strigulosa John C. Roos 1943-8-8 2703 Riverside San Jacinto Mountains 1615 Comment
  UCSB4439  Camissonia strigulosa Kamb, Peter 1947-6-7 Riverside Hall Canyon, San Jacinto Mts 1645 Comment
  SDSU3367  Camissoniopsis hirtella H. Wedberg 1958-5-18 305 Riverside At view-type parking area west of Mountain Center, San Jacinto Mountains. Comment
  SBBG101667  Camissoniopsis intermedia S. Boyd 1991-5-20 6273 Riverside NW of Lake Elsinore, lower Rice Cyn, just inside Cleveland Nat For boundary 573 Comment
  RSA0123365  Camissoniopsis pallida subsp. pallida Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9039 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
  UC597615  Camissoniopsis pallida subsp. pallida Philip A. Munz 1937-3-15 14938 Riverside 3 mi n highway to Banning; Whitewater Creek Comment
  SEINET3507531 Image available Capsella bursa-pastoris K. S. Gill 1965-3-28 Riverside 1.2 mile north of corner of Wood and Roberts roads in Woodcrest. Comment
  UCR59679  Carex alma Steve Boyd, T. S. Ross, L. Arnseth 1989-3-18 2989 Riverside Peninsular Range, Vail Lake area, Temecula Creek Cyn below Vail Lake dam 418 Comment
  UCR40570  Carex fracta A. C. Sanders 1980-8-23 1765 Riverside San Jacinto Mountains, Black Mountain; c. 100 yards above Black Mtn. Campground along a small stream 2241 Comment
  RSA797495  Carex multicaulis Keith E. Hoffmaster 1937-7-5 829 Riverside Fern Valley, San Jacinto Mtns Comment
  SBBG34204  Carex multicaulis T. L. Secrest 1951-5-20 Riverside Idyllwild 1524 Comment
  UC2030129  Carex nebrascensis Robert F. Thorne, J. P. Simon, and C. W. Tilforth 1969-6-24 38142 Riverside SAN JACINTO MOUNTAINS: San Bernardino National Forest. Woods above James Reserve. Comment
  UCR151044  Carex pellita Scott D. White 1998-7-31 6950 Riverside San Jacinto Mts., Idyllwild Area: Strawberry Creek between crossing at Circle Dr. and Humber Park 1951 Comment
  RSA522270  Carex praegracilis Steve Boyd, David E. Bramlet, Harry Spilman 1989-4-30 3516 Riverside Gavilan Hills, Harford Springs County Park on the N edge of the Gavilan Plateau, E of Gavilan Creek 610 Comment
  RSA575995  Carex praegracilis Steve Boyd 1981-4-10 s.n. Riverside Gavilan Hills region, canyon at southeastern base of Rocky Bluff Ridge , east of Estelle Mountain and south of Gavilan Plateau. 610 Comment
  CAS-BOT-BC117870  Carex sartwelliana Robert F. Thorne; J. P. Simon; C. W. Tilforth 1969-6-24 38116 Riverside San Bernardino National Forest, San Jacinoto Mts., 1676 Comment
  SD112274  Carex sartwelliana Darley F. Howe 1941-6-8 1293 Riverside San Jacinto Mountains, Strawberry Creek. Comment
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Aug 21 2007
  SD136989  Carex spissa Steve Boyd, Tim Ross, Dave Bramlet 1993-5-13 7375 Riverside Southern Santa Ana Mountains; San Mateo Canyon Wilderness Area; Wildhorse Canyon; from confluence with Los Alamos Canyon upstream approx. 1 mile; common in seepy ground understory of oak woodland on slope in side drainage just above first major waterfall. 410 Comment
  RSA364778  Carex triquetra J. D. Olmsted 1962-5-10 3657 Riverside West of crest between Sandia and DeLuz Creeks along Murrieta to DeLuz Road. 206 Comment
  UCR209202  Carya illinoinensis A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37151 Riverside Peninsular Range, Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River 238 Comment
  RSA180263  Castilleja affinis E. W. Lathrop 1965-4-25 56715 Riverside 4 miles Sw of Murrieta. Comment
  POM71674  Castilleja applegatei subsp. martinii Philip A. Munz, I. M. Johnston 1924-7-27 8726 Riverside Dark Canyon, San Jacinto Mountains. 2287 Comment
  UC665831  Castilleja exserta Ira L. Wiggins 1941-3-27 9703 Riverside 4 mi n Whitewater Comment
  UCR103990  Castilleja exserta George K. Helmkamp 1998-4-3 3093 Riverside Coachella Valley, Mission Creek, the Wildlands Conservancy Preserve, 1.1 mi. NW of the ranch house beside a gauging staion along the creek 747 Comment
  UCR84601  Castilleja exserta Scott D. White, S. Ogg 1994-4-21 1950 Riverside San Bernardino Mountains, Millard Canyon, near pipeline infiltration site 4 mi south of Bear Wallow Spring 976 Comment
  JEPS16663  Castilleja exserta subsp. exserta Rimo Bacigalupi with Gene Newcomb 1954-4-25 4400 Riverside 0.75 mi s Sage (along Calif Hwy 79, close to summit of St. Johns Grade, 9.5 mi n of junction with Calif Hwy 71) 731 Comment
  RSA0010925  Castilleja exserta subsp. exserta Duncan S. Bell, Joy D. England 2010-5-27 1127 Riverside San Bernardino National Forest: Garner Valley, just south of junction of forest service road 6S04 and forest service road 6S13. 1340 Comment
  UCSB42561  Castilleja exserta subsp. exserta Romspert, A. 1966-3-27 Riverside Highway 71; between Corona and Elsinore.;Rancho El Hermano dirt road; north of 71 Comment
  POM4315  Castilleja foliolosa L. T. Street, Durant 1918-5-12 s.n. Riverside San Jacinto River Canyon. Comment
  UCD122491  Castilleja foliolosa K. Esau 1935-6-20 s.n. Riverside Beaumont Grade. Comment
  UCSB39073  Castilleja foliolosa Jorgensen, Jan 1982-3-23 Riverside 3 kilometers up road to aerial tramway; Palm Springs 120 Comment
  UCSB6029  Castilleja foliolosa Gill, Robert 1959-3-14 Riverside road to Black Star Cyn (Oak Flat); from Corona side; Santa Ana Mt. Range 365 Comment
  RSA706  Castilleja linariifolia J. T. Howell 1927-8-1 526 Riverside Mission Creek, Colorado Desert. 610 Comment
  UCR26173  Castilleja minor subsp. spiralis John C. Roos 1948-4-24 3808 Riverside Eastern San Bernardino Mtns./Sonoran (Colorado) Desert, Whitewater Wash 549 Comment
  UCR262250  Castilleja minor subsp. spiralis T. B. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-23 3733 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
  SEINET7063424  Castilleja subinclusa subsp. subinclusa A. G. Vestal 1947-3-30 s.n. Riverside About 3.8 miles west of Sage on Benton Road. Tucalota Valley. UTM Zone 11, 502473mE, 3715016mN. (WGS84/NAD83). 564 Comment
  SD186121  Catalpa bignonioides A. C. Sanders, Guy Bruyea 2003-6-12 26892 Riverside Winchester, southeast side of town between Simpson Ave. and Olive Ave., east of Highway 79/Winchester Rd. 449 Comment
  UC667364  Caulanthus cooperi Annie M. Alexander and Louise Kellogg 1941-5-19 2202 Riverside 1.5 mi n Cottonwood Spring (Eagle Mountains); Colorado Desert, , n of Cottonwood Spring 975 Comment
  JOTR35488  Caulanthus hallii La Doux, Tasha, D. Shade, S. De Groot, N. Fraga, L. Washburn 2013-4-26 3176 Riverside Joshua Tree National Park. Little San Bernardino Mtns, Upper Smithwater Canyon, NW of Quail Mtn. (Biodiversity Hunt stop2) 1295 Comment
  RSA159832  Caulanthus hallii E. C. Jaeger 1926-4-15 s.n. Riverside Smith Canyon. Comment
  SBBG50745  Caulanthus hallii R. S. Woglum 1941-5-17 3055 Riverside Horse Cyn, NE off Coyote Cyn Comment
  RSA567985  Caulanthus heterophyllus Karin Cleary 1992-4-6 117 Riverside Near top of ridge W of California St, Hemet. 610 Comment
  UCD114216  Caulanthus heterophyllus D. Bramlet; P. Jacks and S. Goode 1989-4-4 1795 Riverside Shipley Multi-species Reserve. Bachelor Mountain. Approximately 300 feet NW of the existing access road and 8000 feet NE of the Lake Skinner Dam. 476 Comment
  RSA543133  Caulanthus lasiophyllus var. rigidus Steve Boyd, Timothy S. Ross, Mike Hammit 1991-5-2 6122 Riverside Vail Lake region, summit of Oak Mountain, N of lake near Henderson benchmark. 823 Comment
  UC64616 Image available Caulanthus simulans W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1894 Riverside Coyote Canyon El Toro Mt.; Coyote Canyon, El Toro Mt. 1676 Comment
  JEPS42118  Ceanothus cordulatus Carl V. Meyer 1928-7-31 615 Riverside San Jacinto Mtns 1828 Comment
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Nov 12 2011
  POM13823  Ceanothus crassifolius P. A. Munz 1922-4-28 5049 Riverside Leach Canyon, Santa Ana Mountains 762 Comment
  RSA569992  Ceanothus crassifolius Steve Boyd, Tim S. Ross 1993-3-23 7901 Riverside Palomar Range south of Vail Lake at the north base of Agua Tibia Mountain, Agua Tibia Wilderness Area, Cleveland National Forest. Along trail extending south from end of Woodchuck Road, 610 Comment
  UC774536  Ceanothus crassifolius Carl B. Wolf 1941-6-27 10898 Riverside 3.3 mi e Orange Co. line (Ortega Hwy); Santa Ana Mts. 579 Comment
  RSA0019603  Ceanothus crassifolius Douglas A. Springer 1981-2-16 12 Riverside 3.9 miles NW of California State Hwy. 74 on Santa Rosa Rd. approx. 5 miles from Perris. [Gavilan Hills] Comment
  UCR92455  Ceanothus cuneatus A. C. Sanders, S. Hawkins 1996-4-24 18075 Riverside San Bernardino Mtns, Morongo Indian Reservation, along dirt road in Hathaway Canyon, near Burro Flats 1159 Comment
  SEINET12209849  Ceanothus cuneatus E. A. Purer 1935-1 6444 Riverside Pine Valley, Pines to Palms Hwy Comment
  RSA59194  Ceanothus greggii var. perplexans Frank W. Gould 1943-4-18 2138 Riverside Riverside County Park east of Idylewild Comment
  SD186314  Ceanothus leucodermis Andy C. Sanders, Mike Misenhelter 2005-3-23 29263 Riverside Santa Ana Mtns.: Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 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
  RSA569999  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7913 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
  UC1611574  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7914 Riverside Palomar Range s of Vail Lake (at n base of Agua Tibia Mt., Agua Tibia Wilderness Area, Cleveland National Forest, along trail extending s from end of Woodchuck Road); Palomar Range, Cleveland Nat'l Forest, Agua Tibia Mt. 792 Comment
  UCR89469  Ceanothus ophiochilus Steve Boyd, Chris Frazier 1993-4-24 8012 Riverside Palomar Mountains, Palomar Range south of Vail Lake at the N base of Agua Tibia Mt., Agua TibiaWilderness area, Cleveland National Forest. Along trail extending S from end of Woodchuck Rd. 1000 Comment
  RSA755791  Ceanothus perplexans Dylan O. Burge 2007-3-21 DOB 802 c Riverside San Jacinto Mountains, along Highway 243, 16.1 road miles north of Idyllwild, near the turn-off for Poppet Flat Road, 17.2 kilometers 319 degrees true north-northwest of Idyllwild. 1280 Comment
  RSA0057839  Cenchrus ciliaris J. C. Roos 1965-10-17 Riverside Along the roadside, 20 miles west of Blythe. Comment
  CAS-BOT-BC277183  Centaurea X pouzinii R. M. Howie No date on label s.n. Riverside Fuller Rancho, Corona Comment
  CAS-BOT-BC281957  Centaurea benedicta Peter H. Raven; Sidney R. Snow 1956-7-6 9657 Riverside Gilman Hot Springs, along road Comment
  RSA773475  Centaurea melitensis Duncan S. Bell, Ryan Parker 2010-6-15 1311 Riverside San Bernardino National Forest: Rouse Ridge, approximately 3 air miles southeast of junction of Highway 74 and forest service road 5S15. Field surveys for potential habitat for the endangered Quino Checkerspot butterfly. 1063 Comment
  UCR37620  Centaurium exaltatum George K. Helmkamp 1984-5-2 D- 4 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  RSA680488  Centaurium venustum Scott D. White, Michael Honer, Dylan Hannon 2003-6-24 9592 Riverside Near Rainbow Valley: Mountains west of I-15 Freeway and immediately north of San Diego County boundary. 335 Comment
  UC22693  Centaurium venustum H. M. Hall 1901-6-12 2094 Riverside vicinity Strawberry Valley; San Jacinto Mountains 1371 Comment
  RSA707578  Centromadia pungens subsp. laevis Jasmine Watts 2005-7-19 s.n. Riverside Hemet. South of Highway 74, and west of Warren Road. Comment
  UCR266905  Centromadia pungens subsp. laevis D. E. Bramlet 2005-7-13 3904 Riverside Perris-Aguanga Basin Region; San Jacinto Valley, Bloome Parcel, 2550 ft. north of San Jacinto River, 1580 ft. south of South Contour Rd., 4700 ft. east of Mystic Lake Duck Club 433 Comment
  SEINET6413741  Centromadia pungens subsp. pungens R. Spellenberg 2014-5-5 14772 Riverside CA Highway 79 N of Hemet, ca 0.5 km so f Ramona Expressway. 445 Comment
  JEPS57818  Centrostegia thurberi var. thurberi W. L. Jepson 1914-5-18 5992 Riverside n of Indio (Pinyon Well); Pinyon Well 762 Comment
  RSA675691  Cerastium glomeratum Scott D. White 2001-5-1 8436 Riverside Near Sun City: Quail Valley: Valleys and slopes east of Canyon Lake and west of Goetz Road. 442 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
  JEPS64759  Cercidium floridum subsp. floridum W. L. Jepson 1927-4-12 11684 Riverside Mecca Painted Canyon (in wash) 76 Comment
  OBI5880  Cercocarpus betuloides Carl B. Wolf 1931-5-11 1950 Riverside Above Hemet Valley, San Jacinto Mts 1695 Comment
  RSA561894  Cercocarpus betuloides Steve D. Boyd, Tim S. Ross 1992-6-10 7637 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon about Potrero Escondido., An isolated area of low relief topping the ridge system due west of the junction on Tenaja Road (7S01) and Los Alamos Road (7S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek. 671 Comment
  JOTR32366  Cercocarpus betuloides var. betuloides La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-6-1 2481 Riverside Joshua Tree National Park. Little San Bernardino Mountains: North side of Quail Mountain; Rocky outcrop and steep slopes above large drainage and spring (Stop 6) Comment
  UCR270193  Cercocarpus minutiflorus A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-3 42414 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, c. 0.3 km NW (161 deg. ) of water tank 473 Comment
  UCD130234  Chaenactis carphoclinia Geoffrey Levin 1975-4-5 466 Riverside 1 mile west of Berdoo Canyon Road on Dillon Road. Foothills of Little San Bernadino Mountains. Saltan Sink Drainage. 60 Comment
  HSC86863  Chaenactis carphoclinia var. carphoclinia David Charlton 1988-2-25 1227 Riverside S side of Little San Bernardino Mtns. Dillon Rd. and 1000 Palms Oasis Rd. Jct. S of Joshua Tree National Park, parrallel to I-10; 5 miles E of Jct. Dillon Rd and Fargo Canyon Rd. 610 Comment
  LA203118  Chaenactis carphoclinia var. carphoclinia Elizabeth McClintock; 1936-5-9 sn Riverside Pines to Palms Highway Comment
  UC1119683  Chaenactis carphoclinia var. carphoclinia H. S. Yates 1937-3-23 6443 Riverside 15 mi nne Mecca; Thermal Quad. 457 Comment
  UC69071  Chaenactis carphoclinia var. peirsonii H. M. Hall 1905-4-1 5809 Riverside 10 mi w Coachella; Colorado Desert 152 Comment
  JOTR32122  Chaenactis fremontii La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler, B. Truesdell, D. Shade 2011-4-26 2279 Riverside Joshua Tree National Park. Pleasant Valley, southwestern edge of Hexie Mountains; sandy flats at base of mountains and northern edge of valley (Stop 4) 996 Comment
  RSA657239  Chaenactis fremontii J. Mark Porter 2001-4-2 12338 Riverside Coachella Valley, along Big Morongo Wash, N of Indian Avenue, ca. 1.5 mi ESE jtn. with Hwy 62. 457 Comment
  UCR124630  Chaenactis fremontii B. C. Templeton, I. W. Clokey 1930-4-9 1083 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  UCR133382  Chaenactis fremontii Mitch Provance, J. S. Ross 1998-3-27 1002 Riverside San Bernardino Mtns., Morongo Indian Reservation, Lion Canyon, c. 1.2 miles NE of the town of Cabazon 579 Comment
  UCR85082  Chaenactis fremontii A. C. Sanders, George K. Helmkamp, P. J. MacKay 1995-3-12 16032 Riverside Sonoran (Colorado) Desert, Coachella Valley, City of Indio, just SW of Whitewater River channel at Auto Center Drive (Hwy 111) -7.5 Comment
  SEINET2049369 Image available Chaenactis glabriuscula Ricardo Montijo 1990-4-27 Riverside Rancho California area: E of Santa Rosa Plateau, Green Meadow Road off of de Portoloa Road. T7S, R1W, sec. 30. 610 Comment
  UCR34889  Chaenactis glabriuscula L. B. Ziegler 1967-4-18 117 Riverside San Jacinto Mtns, Foothills of the mountains, Soboba Indian Reservation, Poppet Flat Rd 581 Comment
  RSA60733  Chaenactis glabriuscula var. glabriuscula Frank W. Gould 1943-4-17 2107 Riverside 12 miles south of Corona on road to Elsinore. Comment
  UC1537042  Chaenactis glabriuscula var. glabriuscula Gordon H. True Jr. 1935-5-15 112 Riverside Box Springs 34 Comment
  POM209906  Chaenactis parishii Victor Duran 1933-7-1 3492 Riverside Near Santa Rosa. Santa Rosa Mountains 1829 Comment
  SD128740  Chaenactis stevioides Darley F. Howe 1980-4-15 Riverside 1.0 mile west of Mesa Verde, south slope of McCoy Mountains, Highway 10. (IPB 10/07) Comment
  POM311389  Chaenactis stevioides var. stevioides Diana plainer 1958-3-30 150 Riverside Joshua Tree National Monument, off main road, toward Cottonwood Springs, S of park at base of hills. Eagle Mts. 457 Comment
  POM351832  Chaenactis stevioides var. stevioides T. H. Holmes 1932-3-18 s.n. Riverside White Water, Palm Springs. Comment
  RSA0123690  Chamaesyce arizonica Duncan S. Bell, LeRoy Gross 2016-3-30 9148 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
  RSA596767  Chamaesyce maculata D. L. Banks, K. D. Hedge 1996-5-16 1035 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, approximately 20 m N of the gate to the University of California-Emerson Oaks Reserve, at the junction with the road to the local golf course. 426 Comment
  RSA644205  Chamaesyce micromera V. W. Steinmann 1999-10-26 1415 Riverside foothills of the Chuckwalla Mountains, open desert ca. 2 km south of Desert Center. 325 Comment
  RSA0042831  Chamaesyce polycarpa Duncan S. Bell, Deidre Conocchioli 2014-3-18 6247 Riverside Orocopia Mountains; southern section of range; Gucci Spring. 416 Comment
  RSA0104636  Chamaesyce polycarpa Duncan S. Bell, Evan Meyer 2014-10-28 7662 Riverside Santa Rosa Mountains; at the foot of the mountains between Toro Canyon and Martinez Canyon. 169 Comment
  UC577219  Chamaesyce polycarpa Lewis S. Rose 1934-12-25 34490 Riverside 10 mi n Whitewater; T Cross K Ranch Comment
  RSA576452  Chamaesyce polycarpa var. hirtella Marjorie D. Clary 1937-4-18 2778 Riverside Road from Indio to Thousand Palms, north side of Colorado Desert 122 Comment
  RSA27501  Chamaesyce polycarpa var. polycarpa I. L. Wiggins 1941-3-26 s.n Riverside Along wash at Wiley well. Comment
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May 3 2014
  RSA734745  Chamaesyce serpillifolia L. C. Wheeler 1945-10-6 6147 Riverside San Jacinto Mountains. 1/2 mi. east of Ranger Peak. 1371 Comment
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Feb 17 2013
  RSA0099598  Chamaesyce setiloba Duncan S. Bell, Evan Meyer 2014-10-29 7699 Riverside Santa Rosa Mountains; collecting in Agua Alta Canyon, to the north of Martinez Canyon, about 6 air miles southeast of the summit of Martinez Mountain. 394 Comment
  UCR80727  Chamelaucium uncinatum Steve Boyd 1989-4-14 3248 Riverside Peninsular Range, W side Hwy 15, 0.5 mi. south of Rainbow Exit, south of Temecula Comment
  RSA4  Cheilanthes clevelandii J. T. Howell 1927-8-2 552 Riverside Near Banning. 671 Comment
  UC399599  Cheilanthes clevelandii I. M. Johnston 1918-4-3 1829 Riverside San Jacinto Canyon; San Jacinto Mts 685 Comment
  UCD137422  Cheilanthes covillei Geoffrey Levin 1976-3-27 697 Riverside Hills on south side of Chino Canyon. West of Palm Springs. San Jacinto Mts. 457 Comment
  SEINET3124930 Image available Cheilanthes parryi Andrew C. Sanders, C. L. Sanders, L. Lubinsky, A. Knapp, P. J. MacKay 1995-1 15925 Riverside Sonoran (Colorado) Desert; Coachella Valley, mouth of East Double Canyon, Little San Bernardino Mtns, 1.4 mi above Aqueduct Rd. 580 Comment
  RSA0033580  Cheilanthes parryi Robert F. Thorne 1966-10-15 41809 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway Comment
  RSA597245  Cheilanthes viscida A. C. Sanders, G. Helmkamp, L. Lubinsky, C. L. Sanders 1995-1-29 15899 Riverside San Jacinto Mountains/Colorado Desert: Chino Canyon near Palm Springs, 1.8 miles above Palm Canyon Road (Hwy 111) on the road to the tram station, vicinity of the upper end of the flood control dike. 548 Comment
  POM153365  Chenopodium rubrum P. A. Munz, I. M. Johnston 1928-9-12 11241 Riverside North end of Lake Elsinore. Comment
  SD234366  Chenopodium strictum Mitch Provance 2003-6-7 7607 Riverside San Bernardino Valley: Jurupa Mountains (extreme northwest end), near Philadelphia Street. 262 Comment
  UCR115158  Chenopodium strictum var. glaucophyllum Mitch Provance 2000-10-14 2254 Riverside Jurupa Mtns., Crestmore area, along the south side of El Rivino Rd., c. 0.4 miles north of Crestmore Quarries. 287 Comment
  SEINET238935  Chilopsis linearis A. C. Sanders, T. B. Salvato 2000-4-27 23374 Riverside Coachella Valley: east side of Coachella Canal near the foot of the Mecca Hills vicinity of the east end of Ave. 60 (Me 15 Comment
  UCR77748  Chilopsis linearis Steve Boyd 1991-9-8 6425 Riverside Peninsular Range, Aguanga Valley, sandy wash of Temecula Creek, south of Hwy 79 at jct with Hwy 371 600 Comment
  UCSB47186  Chilopsis linearis Hornemann, D. 1977-2-27 Riverside Box Canyon Wash 60 Comment
  UCSB8348  Chilopsis linearis Goeschl, John 1957-4-13 Riverside Box canyon wash 5 mi. east of Mecca Comment
  RSA82479  Chilopsis linearis subsp. arcuata F. W. Peirson 1921-4-13 1173 Riverside Deep Canyon; north base of Santa Rosa Mountains, Riverside. 335 Comment
  UC27836  Chilopsis linearis subsp. arcuata H. M. Hall June, 1901 2112 Riverside e. base San Jacinto Mts. Colorado Desert, e. base San Jacinto Mts. Comment
  CDA1888  Chloris truncata R. E. Riefner Jr. 2003-5-27 03 -254 Riverside Perris-Aguanga Region; Perris Valley, Rider Street near Perris Valley Storm Drain. Comment
  SBBG57113  Chloris virgata R. Hoffmann 1929-9-4 Riverside between Wineville [Mira Loma] and Riverside Comment
  UCR72194  Chorizanthe brevicornu Theo Glenn 1991-5-20 91- 104 Riverside Sonoran (Colorado) Desert, Arica Mts, SW of Rice 320 Comment
  CAS-BOT-BC191698  Chorizanthe brevicornu var. brevicornu D. A. Johansen; J. A. Ewan 1932-4-11 7090 Riverside Dry sand of winter stream bed, Martinez Canyon, Santa Rosa Mts. 304 Comment
  CAS-BOT-BC191700  Chorizanthe brevicornu var. brevicornu John Thomas Howell 1928-3-25 3555 Riverside 10 miles S of Palm Springs on road to Indio, Colorado Desert Comment
  UCR123864  Chorizanthe brevicornu var. brevicornu Steven R. Hill 2001-5-3 33681 Riverside San Jacinto Mtns., NE-facing slopes of Mt. San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, c. 3.8 mi west of Calif. Hwy 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area 793 Comment
  RSA656553  Chorizanthe coriacea A. C. Sanders 2000-5-25 23406 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
  UCR174117  Chorizanthe coriacea A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32615 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 579 Comment
  RSA586719  Chorizanthe fimbriata var. fimbriata D. L. Banks, S. D. Boyd 1995-5-17 442 Riverside NW Palomar Mountains; Cleveland National Forest, N of the Agua Tibia Wilderness Area; N face of Agua Tibia Mtn., lower Arroyo Seco; S of the Dripping Springs Campground, W the Dripping Springs Trail. 573 Comment
  UCR48532  Chorizanthe leptoceras Steve Boyd 1986-4-19 1692 Riverside Peninsular Range, Temescal Canyon, east side of Indian wash between I-15 and Temescal Canyon Road 351 Comment
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Jul 13 2015
  UC534896  Chorizanthe leptotheca Susan G. Stokes 1934-7-1 311 Riverside road to Idyllwild (San Jacinto Mountain); San Jacinto Mountain 1219 Comment
  UCR217524  Chorizanthe leptotheca Jeff B. Galvin, Lauren Ross 2010-7-7 138 Riverside Palomar Mountains, Tule Valley, 0.1 miles north of Rogers Canyon, along Tule Peak Road 1291 Comment
  UCR280947  Chorizanthe leptotheca Mitch Provance, Matt K. Beyers, John Hazlett, Jeremiah George 2017-4-6 417- 65 Riverside Temescal Valley, Indian Wash, SW of I-15, S side of De Palma Rd., 700-1100 ft. WNW of inter. with Glen Eden Rd. 366 Comment
  UCR98221  Chorizanthe leptotheca B. G. Pitzer, Stu Hemstreet 1992-5-21 1941 Riverside Santa Ana Mtns., Cleveland National Forest, State Hwy 74, 1 mi. uphill of the 2,000 ft. marker & to the left 0.1 mi. on an old paved road 762 Comment
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Dec 28 2009
  RSA65168  Chorizanthe parryi F. W. Peirson 1922-5-19 3055 Riverside 5 miles northeast of Murrieta on road to Perris Comment
  UCR217548  Chorizanthe parryi var. parryi Diane Menuz 2008-6-20 473 Riverside San Bernardino Mtns. foothills, Bogart County Park, c. 350 m SW of fishing pond 987 Comment
  UCR260516  Chorizanthe parryi var. parryi T. B. Salvato, Matt Malle, Tom Sullivan 2014-5-28 7998 Riverside Perris-Aguanga Basin, Menifee, west side of Byers Rd between Wickerd Rd and Adjer St. 0.75 mi northwest of the intersection of Bundy Canyon Road and Murrieta Rd, and 4.1 mi southeast of Canyon Lake Comment
  POM13266A  Chorizanthe rigida E. C. Jaeger 1922-3-4 1104 Riverside Painted Canyon near Mecca. Comment
  UCR114146  Chorizanthe rigida B. G. Pitzer, J. Ross 1998-3-8 3618 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  CLARK-A1528-1771  Chrysopsis villosa John C. Roos 1965-8-18 Riverside San Jacinto Mountains Comment
  RSA482020  Chrysothamnus nauseosus subsp. bernardinus Richard Noyes, L. Arnseth 1988-9-10 732 Riverside San Jacinto Mountains: South Ridge Trail, southwest of Tahquitz Peak. 2072 Comment
  UC1184317  Chylismia brevipes subsp. brevipes Peter H. Raven 1958-3-16 11861 Riverside Fried Liver Wash Joshua Tree National Monument, Pinto Basin Comment
  UC1546706  Chylismia brevipes subsp. brevipes Barry A. Prigge 1988-2-21 7837 Riverside 2 mi w Clemens Well; Colorado Desert, Orocopia Mountains 228 Comment
  UCD103854  Chylismia claviformis G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2710 Riverside Colorado Desert. Midland Road, 3.8 miles SE of Midland, Little Maria Mountains. Comment
  CAS-BOT-BC160579  Chylismia claviformis subsp. aurantiaca G. Helmkamp; E. Helmkamp 1998-1-17 2531 Riverside Coachella Valley; Bob Hope Dr. 0.9 mi. S of I-10 42 Comment
  CAS-BOT-BC160602  Chylismia claviformis subsp. aurantiaca Carl B. Wolf 1937-4-6 8425 Riverside Colorado Desert. Coachella Valley, 2 mi. NE. of Edom 30 Comment
  CAS-BOT-BC160620  Chylismia claviformis subsp. aurantiaca Cecil Hart 1926-2-1 s.n. Riverside Palm Springs Comment
  CAS-BOT-BC160640  Chylismia claviformis subsp. aurantiaca Geo. B. Grant 1906-4-20 6768 Riverside Palm Springs Comment
  JEPS23483  Chylismia claviformis subsp. aurantiaca Marjorie D. Clary 1933-2-26 2060 Riverside Aqueduct Rd North Colorado Desert 243 Comment
  SD3349  Chylismia claviformis subsp. aurantiaca Ruth B. Randall 1922-4-2 218 Riverside Painted Canyon. Comment
  UC1184362  Chylismia claviformis subsp. aurantiaca Peter H. Raven 1958-2-15 11584 Riverside along US Hwy 60 24.7 mi e turn to Corm Springs; Chuckwalla Mountains Comment
  RSA263657  Cirsium occidentale var. occidentale E. W. Lathrop 1977-4-13 7605 Riverside 4 miles West of Corona between Tin Mine and Santiago Peak, Skyline Drive. Coal canyon at the base of Sierra Peak in the Santa Ana Canyon. Comment
  RSA583357  Cistanthe monandra Steve Boyd, Darin Banks 1995-4-5 8422 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
  RSA699173  Cistanthe monandra J. Russell Bruff 1928-4-2 110 Riverside Canyon wash 1 mile west of Morengo. Comment
  RSA561136  Clarkia bottae Steve Boyd, T. S. Ross, D. E. Bramlet 1993-5-12 7339 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Los Alamos canyon downstream to confluence with Tenaja Canyon. 366 Comment
  RSA699819  Clarkia epilobioides Scott D. White, Michael Honer 2003-4-4 8928 Riverside Temescal Valley: Dissected bajada bench, below and east of Horsethief Canyon; immediately S of I-15 Freeway. 366 Comment
  UCR280618  Clarkia epilobioides Mitch Provance, Jeremiah George, Matt K. Beyers 2017-4-3 417- 06 Riverside Gavilan Hills, Alberhill Canyon, dirt road portion of Lake St., about 0.8 miles N of Hwy. 15 at Alberhill. 457 Comment
  CLARK-A1528-646  Clarkia purpurea subsp. quadrivulnera 1972-5-17 OO 642 Riverside Morongo Indian Reservation 1158 Comment
  UC73290  Clarkia similis M. F. Gilman 1904-1 23 Riverside Banning Comment
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Mar 13 2011
  CSUSB249  Clarkia unguiculata Pam Maynard 1974-5-16 Riverside Fairmount Park in city of Riverside. On the southern border of the park, on a dry slope. 603 Comment
  RSA741160  Claytonia parviflora subsp. parviflora Scott D. White, Justin M. Wood 2008-5-15 11996 Riverside San Jacinto Mountains: Johnson Meadow. 1415 Comment
  RSA180251  Claytonia perfoliata subsp. mexicana E. W. Lathrop 1965-4-18 5659 Riverside 10 miles west of Murrieta. Comment
  RSA552736  Clematis lasiantha Steve Boyd, Tim S. Ross, Orlando Mistretta 1992-3-31 6758 Riverside San Mateo Cyn. Wilderness Area. Tenaja Trail from jtn w/ Morgan Tr. S to Pigeon Spring area. 670 Comment
  SEINET10536024  Clematis lasiantha James S. Miller 1992-5-8 Miller 7461 Riverside 1 mi N of California route 74 on Main Divide Road; near NE border of Cleveland National Forest. 900 Comment
  CLARK-A1528-3852  Clematis ligusticifolia John C. Roos 1965-10-7 Riverside Riverside Comment
  RSA6638  Cleome isomeris B. D. Stark 1932-6-15 1523 Riverside Base of Eagle Mountains above Utopia, Colorado Desert. 229 Comment
  CLARK-A1528-2207  Coldenia palmeri John C. Roos 1947-3-1 3299 Riverside Coachella Valley Comment
  RSA487448  Collinsia concolor Jack Easton 1988-5-2 s.n. Riverside Anza area. 1189 Comment
  UCR195133  Collinsia concolor A. C. Sanders, Tim Thomas 2008-8-1 35961 Riverside Peninsular Range; San Jacinto Mtns., lower Coldwater Creek near Mountain Center, SSE of Keenwild Fire Station 1372 Comment
  UCR20883  Collinsia concolor A. C. Sanders 1978-7-3 999 Riverside San Jacinto Mountains, along old fire road between the James Reserve and the Black Mountain Road 1677 Comment
  RSA0018457  Collinsia concolor J. C. Marvin 1923-01 s.n. Riverside Idyllwild. Comment
  SEINET3080984 Image available Conium maculatum Unknown 1966-5-16 Riverside Specific location: Camp Evans. At the foot of the western side of Mt. Rubidoux, 100 yards north of Mission Blvd. 213 Comment
  UCR207235  Conium maculatum O. F. Clarke 2007-4-27 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  CAS-BOT-BC285929  Conyza bonariensis F. A. Billings 1924-5-1 s.n. Riverside Santa Ana Wash, near Redlands Comment
  UCR102819  Conyza bonariensis A. C. Sanders 1997-3-19 20062 Riverside Lake Skinner area, upper Rawson Canyon, west of Black Mountain, along the road from Lake Skinner 549 Comment
  UC63178  Conyza canadensis H. M. Hall 1901-8-1 Riverside vicinity Riverside 304 Comment
  POM4482  Cordylanthus rigidus subsp. setiger F. M. Reed 1908-7-14 2457 Riverside Common in and below Strawberry Valley. Comment
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May 1 2011
  RSA305757  Cordylanthus rigidus subsp. setiger Larry L. Norris 1971-9-18 1311 Riverside Vail Lake. 457 Comment
  UC455558  Cordylanthus rigidus subsp. setiger I. J. Condit 1910-6-21 Riverside Strawberry Valley San Jacinto Mts. 1676 Comment
  JEPS24879  Coreopsis bigelovii Peter M. Ray 1949-3-12 1362 b Riverside n side of Coachella Valley (2 mi w of Whitewater) 457 Comment
  UCR175371  Coreopsis bigelovii Jim Andre 2006-4-26 6751 Riverside South Mojave Desert, Joshua Tree National Park: c. 5 mi NNE of Rattlesnake Spring, on ridge just south of radio tower and NE corner of park boundary 1321 Comment
  POM356170  Corethrogyne filaginifolia H. de Forest, Jack Rempel 1933-10-29 18687 Riverside Snow Creek Canyon, San Jacinto Mts. 526 Comment
  POM49087  Corethrogyne filaginifolia P. A. Munz, I. M. Johnston 1924-7-26 8713 Riverside South of Banning. 976 Comment
  RSA192329  Corethrogyne filaginifolia E. W. Lathrop 1966-9-14 6596 Riverside 3 miles SW of Murrieta. Comment
  UCSB4670  Cornus sericea DeWitt, Jack 1959-5-17 Riverside At Dark Canyon Camp grounds; near Idyllwild; San Jacinto Mtns. 1524 Comment
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Nov 5 2018
  UCR207549  Coronilla O. F. Clarke 2004-2-4 s.n. Riverside Peninsular Range, Riverside; UCR Botanical Garden 412 Comment
  JOTR32315  Coryphantha alversonii Herskovits, Tasya 2011-5-25 s.n. Riverside Joshua Tree National Park. Cottonwood Mountains; Pinto Basin road; Convergence of large sandy, open southeast flowing wash and Cottonwood Canyon; Small rocky ledges and outcrops bordering wash (Stop 1) Comment
  RSA357164A  Crassula aquatica R. F. Thorne, E. W. Lathrop 1975-5-25 45561 -A Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro. 609 Comment
  UCR155158  Crassula connata A. C. Sanders, Kelly Volansky 2005-3-17 29202 Riverside Perris-Aguanga Basin Region, French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., c. 0.5 mi. NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  JEPS48951  Crassula connata var. eremica W. L. Jepson 1935-4-17 19142 Riverside 1 1/2 mi. n. Elsinore 457 Comment
  RSA85442  Crassula solieri J. C. Roos 1952-4-9 5514 Riverside Edgemont, near Box Springs 488 Comment
  CLARK-A1045-300  Crepis capillaris George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep canyon; ; Palm Desert 15'Q Comment
  NY268554  Crossosoma bigelovii C. B. Wolf 1937-5-4 8525 Riverside Colorado Desert. Little San Bernardino Mts. Morongo Wash, 1 mi. below San Bernardino Co. line. 609.6 Comment
  UCR9246  Crossosoma bigelovii D. H. Wilken 1966-3-26 791 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Whitewater Canyon, near palm oasis along E side of canyon. 610 Comment
  UCR20828  Croton californicus A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1296 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UCSB3576  Croton californicus Kamb, Peter 1948-2-1 Riverside Valley in the Jurupa Mts. west of Colton, San Bernardino/Riverside County 304 Comment
  SEINET10837540  Croton californicus David B. Dunn 1948-3-14 Dunn 3767 Riverside Found 5 mi W of Thousand Palms in an open sandy desert. Comment
  SDSU13010  Croton setiger Michael G. Simpson 1999-10-27 2055 Riverside Santa Margarita Ecological Reserve, San Diego State University. Along path from river to Southside facilities. 152 Comment
  UCR161403  Croton setiger A. C. Sanders, Mike Misenhelter 2005-9-20 31675 Riverside San Jacinto Mtns. Foothills, Santa Rosa Hills south of Hemet, road NW of Gibbel Flat, south end of Cornell St., 0.5 mi. SE of the Ramona Bowl 610 Comment
  RSA663310  Crypsis vaginiflora A. C. Sanders, Mitch Provance 1999-9-26 23081 Riverside McMullen Flat at Valley High County Park, 0.7 mi. SE of Hwy 74 on Twin Pines Ranch Road 1183 Comment
  JOTR35363  Cryptantha angustifolia Harding, Mitzi, M. Wheeler 2011-1-26 147 Riverside Joshua Tree National Park. Pinto Basin, where Chuckwalla Valley meets Pinto Wash, 0.5 mi west of Coxcomb Mountains, sandy burms above large wash (STOP2) 289 Comment
  UCR102724  Cryptantha angustifolia B. G. Pitzer 1998-1-24 3410 Riverside Sonoran (Colorado) Desert, N foot of Chuckwalla Mtns, Eagle Mt Rd, south side of Hwy I-10, 0.8 mi south of Hwy at powerline rd, & wash directly south of road 500 Comment
  POM98737  Cryptantha angustifolia P. A. Munz 1926-1-31 9974 Riverside Dos Palmas Spring Comment
  CLARK-A1045-221  Cryptantha barbigera George K. Helmkamp 1979-4-18 Riverside Little San Bernardino Mountains 3.5 miles north of Dillon Road; dry wash; Lost Horse Mtn. 15'Q Comment
  JEPS67489  Cryptantha barbigera Marjorie D. Clary 1932-5-25 1167 Riverside n of Indio; Colorado Desert, Little San Bernardino Mts., Berdoo Canyon 609 Comment
  UC1063930  Cryptantha barbigera H. S. Yates 1937-3-23 6446 Riverside 15 mi nne Medda; Thermal Quad. 457 Comment
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Apr 6 2011
  UC809722  Cryptantha barbigera Philip A. Munz 1949-4-13 13045 Riverside above Cottonwood Springs (w end Eagle Mts.); Colorado Desert, Eagle Mts. 1097 Comment
  UCR1353  Cryptantha barbigera Frank C. Vasek 1960-3-24 600324- 25 Riverside Santa Rosa Mtns., Palms-to-Pines Highway, 4.8 miles east of Pinyon Flat [near Dos Palmas Spring] at a long wide turnoff on north side of road 1067 Comment
  UCR97480  Cryptantha barbigera John Wear, N. Moorhatch 1997-3-13 s.n. Riverside San Jacinto Mtns. / Coachella Valley, S of Chino Canyon, at NW end of Palm Springs. 350 Comment
  JOTR35277  Cryptantha barbigera var. fergusoniae Andre, Jim 2012-4-16 20975 Riverside Joshua Tree National Park. along Cottonwood Spring Road, approx. 6 mi. south of the North Entrance at Twin Tanks parking area. 1196 Comment
  POM368291  Cryptantha barbigera var. fergusoniae T. W. Minthorn 1926-5-14 s.n. Riverside Between Banning and Palm Springs. Comment
  SDSU20603  Cryptantha barbigera var. fergusoniae Ronald B. Kelley 2006-3-27 1006 Riverside Northwest Coachella Valley. Roadside on Intersection of Painted Hills and Worsley Roads, east of SR62. 387 Comment
  UCR115343  Cryptantha corollata A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16268 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, San Gorgonio Pass; alluvial fan at the mouth of Snow Creek, between Hwy 111 and Snow Creek Village 427 Comment
  UCR165911B  Cryptantha corollata T. B. Salvato, John F. Green 2004-5-27 551 B Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 1 mi SE of Oak Glen Conservation Camp 1402 Comment
  UCR224250  Cryptantha corollata A. C. Sanders 2011-3-23 38802 Riverside Peninsular Range; Gavilan Hills Region, powerline corridor, SW of Perris, east of Hwy 74 between the highway and the San Jacinto River, south of Ethanac Rd. 440 Comment
  CAS-BOT-BC227841  Cryptantha inaequata Dave Silverman 2010-3-24 7825 Riverside South Palen Lake, Chuckwalla Valley, 5.0 km SE of Sidewinder Well, 2.4 km SW of Palen Dunes Dr., and 3.7 km N of Interstate 10 130 Comment
  JEPS67669  Cryptantha intermedia W. L. Jepson 1901-5-17 1212 Riverside Riverside 266 Comment
  UC1112452  Cryptantha intermedia Peter H. Raven with R. Snow 1957-7-26 10924 Riverside 0.9 mi n Vista Grande Ranger Station (Banning to Idyllwild road); San Jacinto Mountains Comment
  UCD119862  Cryptantha intermedia R. L. Smith 1948-3-24 s.n. Riverside foot of Andreas Canyon. Comment
  UCR112957  Cryptantha intermedia B. G. Pitzer 1998-3-1 3546 Riverside Lakeview Mtns, Maze Stone county historical marker & picnic area, E side of mtns, on W side of Reinhardt Canyon 610 Comment
  UCR115431  Cryptantha intermedia Scott D. White, D. E. Bramlet 1999-4-22 7243 Riverside Lake Skinner area, Ridgetop, north, west, and northwest facing slopes of Bachelor Mtn. 762 Comment
  UCR120943  Cryptantha intermedia A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-9 24915 Riverside The Badlands, hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 671 Comment
  UCR16167  Cryptantha intermedia Rodney Hendrick 1965-5-2 s.n. Riverside Peninsular Range, Temecula Creek and Hwy. 71 610 Comment
  UCR213602  Cryptantha intermedia A. C. Sanders, Matthew Malle 2010-4-23 37999 Riverside Peninsular Range, Menifee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  UCR215620  Cryptantha intermedia Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 07 Riverside Peninsular Range, Box Springs Mountains, eastern edge of Riverside; Two Trees Canyon Trail near the trailhead 409 Comment
  UCR241639  Cryptantha intermedia T. B. Salvato, Jeffrey Ross 1998-6-9 MOR- 346 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Lion Canyon up to fork in stream 720 Comment
  UCR251995  Cryptantha intermedia A. C. Sanders, T. B. Salvato 2014-7-2 41166 Riverside Peninsular Range; San Jacinto Mtns., Fobes Canyon, c. 1/2 mile south of Fobes Ranch along Fobes Ranch Rd. 1555 Comment
  POM96833  Cryptantha intermedia F. M. Reed 1925-3-17 4936 Riverside Tahquitz Canyon - Palm Springs. Comment
  RSA781651  Cryptantha micrantha Duncan S. Bell 2009-3-8 72 Riverside Arica Mountains: northwest section of mountain range approximately 3.2 air miles northwest of Priest Well, or approximately 6 air miles southwest of the ghost town of Rice. 476 Comment
  SEINET3005010  Cryptantha micrantha G. Rink, A. Karl, M. Honer, T. Thomas 2011-4-6 10439 Riverside Ca 5 miles west of Blythe, south fo I-10 and north of the transmission line, on dunes 141 Comment
  UC455977  Cryptantha micrantha I. J. Condit 1910-6-21 Riverside Strawberry Valley San Jacinto Mts. 1524 Comment
  RSA717464  Cryptantha microstachys Scott D. White 2006-4-28 11318 Riverside Wildomar., east of the I-15 Freeway and north of Baxter Rd. South- and west-facing hillsides, minor ephemeral wash, and upper bajadas at bases of hills. 427 Comment
  RSA735924  Cryptantha microstachys Scott D. White, Justin Wood 2008-5-29 12047 Riverside West of Beaumont, near SR-60 crossing over San Timoteo Creek. 610 Comment
  SBBG53761  Cryptantha microstachys S. Boyd 1980-5-28 Riverside Harford Springs County Park, located on the NW corner of the Gavilan Plateau, E side of Gavilan rd Comment
  UCR260603  Cryptantha microstachys A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-1 41541 Riverside Peninsular Range, Eastern Foot of Santa Ana Mtns., Temescal Canyon, south side of Indian Truck Trail along Temescal Canyon Road 349 Comment
  UCR43758  Cryptantha microstachys A. C. Sanders 1986-4-30 6490 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
  JEPS67763  Cryptantha nevadensis Marjorie D. Clary 1932-4-3 1649 Riverside 15 mi sw Indio; Colorado Desert, Santa Rosa Mts., Deep Canyon 304 Comment
  UCR102700  Cryptantha nevadensis B. G. Pitzer 1998-1-24 3383 .1 Riverside Sonoran (Colorado) Desert, N foot of Chuckwalla Mtns, Eagle Mt Rd, south side of Hwy I-10, 0.8 mi south of Hwy at powerline rd, & wash directly south of road 500 Comment
  UCR75086  Cryptantha nevadensis A. C. Sanders, E. J. Lawlor 1992-4-4 12144 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  UC64412  Cryptantha oxygona H. M. Hall May 1899 1161 Riverside Van Deventer's San Jacinto Mountains 1371 Comment
  UC667385  Cryptantha pterocarya Annie M. Alexander and Louise Kellogg 1941-4-27 2090 Riverside Riverside and San Bernardino counties Joshua Tree National Monument 1310 Comment
  UCR135709  Cryptantha pterocarya var. purpusii Mitch Provance, Kerry Knudsen, Petra Wester 2004-5-8 9027 Riverside Santa Rosa Mtns., c. 0.05 miles S on Santa Rosa Mt. Road from Hwy 74 1402 Comment
  UC1178529  Cryptantha simulans Peter Kamb 1948-7-11 1190 Riverside Hall Canyon San Jacinto Mts. 1645 Comment
  JEPS67900  Cryptantha utahensis Marjorie D. Clary 1933-3-25 2073 Riverside Ebbens Creek Wash Colorado Desert, Santa Rosa Mountains 304 Comment
  JOTR34322  Cryptantha utahensis Andre, Jim 2012-4-11 20823 Riverside Joshua Tree National Park. Western margin of Eagle Mountains; 0.6mi south of Cottonwood Visitor Ctr. along Rte 11 912 Comment
  RSA502188  Cucurbita foetidissima Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-11 3714 Riverside Vail Lake area, sandy wash draining into Wilson Creek at E end of lake. Comment
  RSA394340  Cucurbita palmata L. C. Wheeler 1933-12-1 2286 Riverside 2 miles E Cabazon, San Gorgonio Pass 640 Comment
  CAS-BOT-BC224550  Cuscuta californica A. C. Sanders; Kerry Knudsen; T. B. Salvato 2004-5-18 27901 Riverside Peninsular Range: summit ridge of Alberhill Mountain, along dirt road 503 Comment
  CAS-BOT-BC224607  Cuscuta californica var. papillosa Milo S. Baker 1928-4-3 2796 a Riverside Palm Canon [Canyon] Comment
  RSA13685  Cuscuta salina P. A. Munz, I. M. Johnson 1922-5-18 5410 Riverside 1 mile west of Hemet Comment
  UCR263232  Cycloloma atriplicifolium A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41458 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 2.95 miles ESE of Cabazon, c. 0.84 mi. NNW (335 deg. ) of One Horse Spring, south of I-10 and SE of water bottling plant, edge of wind farm 452 Comment
  RSA0097557  Cylindropuntia bigelovii Marc A. Baker, Michelle Cloud-Hughes 2015-3-25 18290 Riverside Chuckwalla Bench, 64 km WSW of Blythe, 3.3 km SSW of Augustine Pass. 670 Comment
  CAS-BOT-BC59396  Cylindropuntia bigelovii var. bigelovii L. R. Abrams 1926-3-26 11212 Riverside Field redacted by CAS, contact the data manager for more information Comment
  SEINET716811  Cylindropuntia ramosissima R. Puente, G. and A. Puente-Reinhardt 1998-11-7 741 Riverside 1.5mi e of Chirico Summit Comment
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Jan 7 2016
  RSA549282  Cyperus acuminatus Steve Boyd, Timothy S. Ross, D. Zippin, T. Oberbauer 1991-6-14 s.n. Riverside Skunk Hollow area, 2 miles E of Murrieta Hot Springs, just W of Second San Diego Aquaduct. Comment
  RSA0088440  Cyperus eragrostis Mitch Provance 2011-7-4 17182 Riverside San Bernardino Valley: Northwestern base of the Jurupa Mountains, adjacent to S side of Fontana (technically in an unincorporated part of Riverside Co.), retention basin on S side of Philadelphia St., just E of Country Village Rd. 262 Comment
  UCR125280  Cyperus odoratus A. C. Sanders 2002-11-21 25652 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy' at the confluence of Bixby and Anderson Canyons 366 Comment
  RSA776703  Cyperus squarrosus Steve Boyd, Gary D. Wallace 2005-7-30 11649 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
  RSA0113520  Dalea mollis Henry J. Ramsey, Henry J. Ramsey 1940-4-14 1992 Riverside North of Blythe, Colorado Desert. Comment
  UC537050  Danthonia unispicata M. E. Jones Sept. 1933 Riverside San Jacinto Mts. Comment
  UCD65758  Dasyochloa pulchella F. M. Reed 1927-1-5 5691 Riverside Eagle Canyon, 5 miles east of Palm Springs. 228 Comment
  CAS-BOT-BC283036  Dasyochloa pulchella Carl B. Wolf 1932-4-27 3034 Riverside Mecca - Blythe Road 3/4 mi. west of Utopia, Colorado Desert 152 Comment
  RSA659515  Datura discolor J. C. Roos 1965-11-6 s.n. Riverside Colorado Desert, 26 miles west of Blythe. Comment
  SEINET8465882 Image available Datura discolor J. C. Roos 1965-11-6 Riverside Desert, 26 miles west of Blythe Comment
  CAS-BOT-BC229032  Datura wrightii T. B. Salvato; Richard Camacho 2011-6-12 5483 Riverside Peninsular Range: Temescal Canyon, N/S trending wash that extends from Temescal Canyon Road near the west end of Lee (Corona) Lake, south under the Hwy 15 overpass about 0.25 miles 372 Comment
  POM98740  Datura wrightii Philip A. Munz 1926-1-31 9972 Riverside Dos Palmos [Palmas] Spring. Comment
  POM123015  Daucus pusillus Marcus E. Jones 1926-5-29 s.n. Riverside South of Temecula. Comment
  UCR116864  Daucus pusillus A. C. Sanders, Steven R. Hill 2001-5-4 24126 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon area west of Del Rey Rd., hills on both sides of gas pipeline route 390 Comment
  UCR158727  Daucus pusillus A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30010 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
  UC194674  Deinandra fasciculata S. B. and W. F. Parish 1882-6-1 237 Riverside near Temecula; San Jacinto Plains Comment
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Jul 15 2009
  UCSB61511  Deinandra kelloggii Sanders, A. 1993-5-17 Riverside Hemet, S side of Florida Ave. (Hwy. 74) on the E side of California Ave.; (T5S, R2W, NW/4 sec. 13) 460 Comment
  JEPS86542  Delphinium cardinale Roy E. Buck 1988-5-28 910 Riverside e-facing slope above CA Hwy 74 near top of grade W of Lake Elsinore (ca 2.0 air km nw of confluence of Harlan Canyon and Johnson Canyon drainages, 7 air km w of Lake Elsinore (town)); Elsinore Mountains 780 Comment
  CAS-BOT-BC7987  Delphinium parishii subsp. parishii Philip Alexander Munz; Percy C. Everett 1952-5-2 16240 Riverside Morongo Wash, n.w. end of Coachella Valley 457 Comment
  UCSB1980  Delphinium parishii subsp. parishii Van Leeuwen, Henry 1957-4-13 Riverside Whitewater Canyon; 2 miles from US 60 Comment
  SBBG122777  Delphinium parryi A. Parikh 1990-4-17 152 Riverside 0.4 km S of Potrero Crk, 4.1 km ENE of Gilman Hot Springs 665 Comment
  UCR213465  Delphinium parryi A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38360 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
  UC9156  Delphinium patens subsp. hepaticoideum H. M. Hall May 17 1901-Jun 1 1901 1804 Riverside Strawberry Valley San Jacinto Mt. Comment
  RSA395350  Dendromecon rigida subsp. rigida Steve Boyd 1986-4-22 1748 Riverside Temescal Canyon: Stable alluvial benches of Indian wash just south of I-15. Comment
  UCR222303  Deschampsia danthonioides R. F. Thorne, E. W. Lathrop, Steve Beckstrom-Sternberg, B. Martin 1982-1 55219 Riverside Peninsular Ranges; Santa Ana Mountains, SW of Murrieta, Santa Rosa Plateau, Mesa de la Punta near south edge of plateau, approached by De Luz Rd. 579 Comment
  CLARK-A1528-5138  Descurainia pinnata John C. Roos 1952-3-26 5414 Riverside Riverside 259 Comment
  JOTR16636  Descurainia pinnata Moore, Sue 1968-3-13 s.n. Riverside Joshua Tree National Park. 1341 Comment
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Aug 7 2014
  CAS-BOT-BC43359  Descurainia pinnata subsp. glabra C. L. Hitchcock 1940-4-1 5911 Riverside Cottonwood Spring wash. Comment
  UCR201473  Descurainia sophia Scott D. White, Justin M. Wood 2008-6-5 12081 Riverside San Jacinto Mountains, Garner Valley, Hwy 74 at Thomas Mountain Road, southwest corner of junction 1341 Comment
  CAS-BOT-BC402298  Dicentra chrysantha Marcus E. Jones 1926-6-20 s.n. Riverside 20 miles north of Idyllwild Comment
  RSA433554  Dicentra chrysantha Gale Sphon 1959-5-2 318 Riverside Horsethief Canyon, Elsinore Mountains. Comment
  RSA697659  Dicentra chrysantha R. H. McArthur 1934-5-6 s.n. Riverside Ortega Hiway. Roadside. Comment
  IRVC59  Dichelostemma capitatum subsp. capitatum Christie Duncan 1965-5-1 HS 0102 Riverside Elsinore. Comment
  CLARK-A1656-666  Dicoria canescens Lois Ann Scott 1978-12-22 Riverside Thousand Palms Oasis 182 Comment
  JEPS26053  Dicoria canescens Spencer W. Brown and U. Nur 1960-2-6 Riverside 4 mi e Beaumont ( on Hwy 99) Comment
  RSA0016052  Diplacus bigelovii var. bigelovii George Willet 1930-4-5 s.n. Riverside Temecula. Comment
  RSA0019280  Diplacus brevipes N. C. Cooper 1943-9-11 924 Riverside Below Idlewild. 915 Comment
  CAS-BOT-BC152266  Diplacus clevelandii Peter H. Raven 1962-5-18 17759 Riverside Main Divide Truck Trail 2.9 miles south of Santiago Peak 1234 Comment
  RSA0018417  Diplacus longiflorus var. calycinus D. C. Michener 1980-5-29 3633 Riverside Cave Springs. Comment
  RSA0018430  Diplacus longiflorus var. calycinus P. A. Munz, Percy C. Everett 1950-6-23 14909 Riverside 2 mi. NW of Pipe Creek, Hemet Valley, San Jacinto Mountains. 1402 Comment
  CAS-BOT-BC150263  Diplacus puniceus Steve Boyd; Aydee Virgen 2004-4-13 10850 Riverside Peninsular Ranges; Santa Ana Mountains region: San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon Comment
  CAS-BOT-BC168490  Dipsacus sativus Kurt Campbell 2006-6-15 s.n. Riverside Perris-Aguanga Basin: Temecula, NW corner of Moraga Rd. and Rancho California Road 335 Comment
  UCD64340  Distichlis stricta A. A. Beetle 1942-4-22 3177 Riverside Beside Salton Sea. Comment
  RSA781655  Ditaxis claryana Duncan S. Bell 2009-3-8 76 Riverside Arica Mountains: northwest section of mountain range approximately 3.2 air miles northwest of Priest Well, or approximately 6 air miles southwest of the ghost town of Rice. 476 Comment
  RSA677302  Ditaxis lanceolata P. A. Munz, D. D. Keck 1922-4-13 4945 Riverside Eagle Mountains. 244 Comment
  RSA778006  Ditaxis neomexicana J. Andre 2011-2-9 15930 Riverside Mecca Hills; along Box Canyon Road at upper end of gorge, approx. 6 miles SSE of Jct. with I-10, approx. 12 miles west of Chiraco Summit 284 Comment
  UCR97439  Ditaxis neomexicana A. C. Sanders, Pam MacKay, Tim Thomas, G. K. Helmkamp 1997-2-8 19685 Riverside Colorado Desert/San Jacinto Mtns:, Palm Springs area, Murray Canyon off Palm Canyon 244 Comment
  UCD142314  Ditaxis serrata Barry Prigge; L. Martinez 1978-3-23 2396 Riverside NW Colorado Desert, Coachella Valley, 1.7 miles W of North Palm Springs on Dillon Rd. 274 Comment
  POM13618  Ditaxis serrata var. serrata E. C. Jaeger 1921-3-15 44 Riverside Between Corn Springs and Gruendyke's Well [Desert Center]. Lower Sonoran Zone. Comment
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Apr 5 2011
  POM14296  Dithyrea californica P. A. Munz, D. D. Keck 1922-4-9 4808 Riverside Chuckwalla Valley, 10 miles east of Shavers well. 152 Comment
  RSA155552  Dithyrea californica L. S. Rose 1962-3-2 62003 Riverside La Quinta 3 Comment
  RSA530747  Dithyrea californica Albert J. Perkins 1916-4-16 s.n. Riverside Palm Springs. Comment
  SBBG72431  Dithyrea californica R. C. and J. R. Robbins 1933-2-17 Riverside 20 mi S of Indio Comment
  SBBG72435  Dithyrea californica unknown 1895-1 Riverside Palm Springs Comment
  RSA462211  Dodecatheon redolens F. W. Peirson 1924-7-27 4999 Riverside Deer Springs, San Jacinto Mountains. Comment
  RSA776087  Draba cuneifolia Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-23 819 Riverside Chuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.' 396 Comment
  SBBG2481  Draba cuneifolia H. and M. Dearing 1942-1-15 4785 Riverside Cathedral City near Palm Springs 137 Comment
  POM366541  Drymocallis glandulosa var. viscida H. E. Hasse 1894-7-4 s.n. Riverside [Unspecified] Comment
  RSA783368  Dryopteris arguta J. D. Olmsted 1959-3-4 774 Riverside Saunder's Meadows near Idyllwild 1662 Comment
  RSA0123092  Dudleya cymosa Duncan S. Bell, Larry Heronema, Isaac Marck, Evan Meyer 2016-3-22 8989 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in a side canyon off of Martinez Canyon, approximately 7 air miles southeast of the summit of Martinez Mountain. 698 Comment
  POM20020  Dudleya lanceolata Mary F. Spencer 1923-8-7 2200 Riverside Fern Valley 1677 Comment
  RSA638856  Dudleya lanceolata Valerie L. Soza, LeRoy Gross 1999-6-10 508 Riverside Santa Ana Mountains: Upper side of Indian Truck Trail, 2.5 miles from junction with Main Divide Motorway. 975 Comment
  CAS-BOT-BC173206  Dudleya multicaulis Mitch Provance 2003-4-26 9880 Riverside Santa Ana River Valley: Northern extreme of the La Sierra Hills, on the N-facing slopes and ridges just S of Crestlawn Memorial Cemetery 427 Comment
  RSA574737  Dudleya multicaulis Steve Boyd 1982-4-27 s.n. Riverside Gavilan Hills region, Temescal Canyon west of Horsethief Wash, south of Lee Lake on terrace escarpments just south of Di Palma Road. 396 Comment
  JEPS50041  Dudleya saxosa subsp. aloides Carl V. Meyer 1928-7-24 521 Riverside above Ildyllwild Falls (in canyon) 1828 Comment
  RSA397782  Dudleya saxosa subsp. aloides Jack Rempel 1933-3-26 17583 Riverside Near Morongo Valley. Comment
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Jun 14 2012
  RSA696228  Echinocactus cylindraceus Keith E. Hoffmaster 1933-4-13 s.n. Riverside Palm Springs. Comment
  SEINET8060012 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 10 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  SEINET8060326 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-11 16 Riverside Zzyzx Road south off Route 15 on SE facing rocky slope overlooking west shore of Soda Lake. 400 Comment
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Jun 4 2016
  RSA737324  Echinochloa crus-galli Justin M. Wood 2008-9-22 157 Riverside SW Perris Basin; Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  UCD169372  Ehrharta longiflora Tom Chester 2005-4-15 580 Riverside Peninsular Ranges; Santa Ana Mountains region, Santa Margarita Ecological Reserve: Temecula Gorge, south side. 239 Comment
  SD90586  Elatine californica Robert F. Thorne, Earl Lathrop 1969-5-12 37921 Riverside Santa Rosa Plateau; large vernal marsh on south end of Mesa de Colorado. 625 Comment
  RSA357153  Elatine chilensis R. F. Thorne 1973-5-23 43851 Riverside Santa Rosa Plateau: Desiccated margin of large vernal pool N side of Mesa de Colorado 609 Comment
  SD90489  Eleocharis bella Robert F. Thorne, E. Lathrop et al. 1969-5-19 37954 Riverside Santa Rosa Plateau: north end of large vernal marsh, Mesa de Colorado, Rancho California 625 Comment
  UCR182517  Eleocharis macrostachya Mitch Provance 2005-5-17 6568 Riverside Warm Springs Valley, Terra Cotta, Nichols Rd. Wetland at Alberhill Creek, c. 100 yards SE of the Durant RR siding, the site bordered along the NW by Pierce St. and on the N by Alberhill Creek, with Baker St. more or less bisecting the collection site 421 Comment
  RSA234094  Eleocharis montevidensis Robert F. Thorne, E. W. Lathrop 1969-6-6 39345 Riverside Santa Rosa Plateau: Rancho California 610 Comment
  UCD49843  Eleocharis montevidensis A. C. Sanders; Mitch Provance, T. B. Salvato 2001-5-7 24170 Riverside Perris-Aguanga Basin Region: S of Hemet, E end of Diamond Valley, along Gibbel Rd. 0.5-0.75 mi. E of State St., between Silver Dew Dr. and Morse Girard St., slopes and wash below the mouth of Avery Canyon. 502 Comment
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Mar 24 2011
  RSA65651  Eleocharis palustris F. W. Peirson 1922-4-29 4167 Riverside Dripping Spring, Temecula River, southwestern Riverside Co., California 457 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
  SD91991  Elymus condensatus Richard C. Schwenkmeyer 1975-6-22 Riverside Dripping Springs Campground, on Highway 71. 500 Comment
  UCR20779  Elymus condensatus A. C. Sanders, Steve Boyd 1980-5-2 1391 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  RSA33603  Elymus elymoides N. C. Cooper 1944-5-20 1261 Riverside Palms to Pines Highway [Hwy 74], San Jacinto Mountains. 1280 Comment
  UCR24988  Elymus elymoides A. C. Sanders 1980-7-18 1659 Riverside San Jacinto Mtns., Thomas Mountain: Thomas Mountain Campground to the summit at the lookout 2073 Comment
  RSA701650  Elymus elymoides subsp. elymoides Keith E. Hoffmaster 1937-6-6 s.n. Riverside San Jacinto Mountains. Comment
  CAS-BOT-BC174022  Elymus glaucus A. C. Sanders; Mitch Provance 2008-7-11 35791 Riverside Peninsular Range; San Jacinto Mtns.: Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station 1475 Comment
  OBI32773  Elymus glaucus E. W. Lathrop 1965-4-26 5689 Riverside 4 mi SE of Murrieta Comment
  UC37060  Elymus trachycaulus H. M. Hall July 1901 2569 Riverside Dark Canyon San Jacinto Mountains 2133 Comment
  NY411116  Emex spinosa N. D. Atwood 1993-3-27 17696 Riverside Corona Del Mar State park along Newport Coast Drive. 0.0 Comment
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Jul 14 2012
  UCR199561  Emmenanthe penduliflora Scott D. White 2004-4-26 10269 Riverside San Jacinto Mountain Foothills, Soboba Indian Reservation, Indian Creek Watershed 671 Comment
  JEPS34089  Encelia actoni W. L. Jepson 1928-4-25 12584 Riverside Cottonwood Springs Colorado Desert, Eagle Mts., Cottonwood Springs 731 Comment
  UCR154764  Encelia actoni T. B. Salvato, Kent Beaman 2005-5-16 787 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
  CAS-BOT-BC131336  Encelia farinosa M. Bourell; R. Patterson 1987-4-14 3274 Riverside Spur N of Box Canyon Hwy 195, BLM Conservation Area 150 Comment
  JOTR35377  Encelia farinosa Harding, Mitzi, J. Hoines, E. Kramer 2012-2-2 166 Riverside Joshua Tree National Park. southeast Coxcomb Mountains; SE facing slopes and steep drainages 164 Comment
  UC1923762  Encelia farinosa John L. Strother 2008-3-10 1368 Riverside ca. 18 km (11 mi) W of Chiriaco Summit, along N frontage of I-10 420 Comment
  UCR41600  Encelia farinosa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6032 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  POM356681  Encelia farinosa var. farinosa D. A. Young 1969-3-21 308 Riverside 3 miles SE of Hwy 74 (8 miles S of Palm Desert) near the fence of the University of California. 366 Comment
  POM356685  Encelia farinosa var. farinosa L. E. Hoffman 1933-2-18 s.n. Riverside Above Garnet, Coachella Valley Comment
  RSA171035  Encelia farinosa var. farinosa R. F. Thorne 1963-3-29 32434 Riverside Eagle Mountains, Pumping Station, S side of Eagle Mountains; ca. 12 miles W of Desert Center 533 Comment
  CAS-BOT-BC166529  Encelia farinosa var. phenicodonta A. C. Sanders; Mark Bibbo; Erin Bergman; Lance Woolley 2010-3-16 37484 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
  UCR52235  Encelia farinosa var. phenicodonta Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2142 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  CLARK-A1528-1811  Encelia virginensis subsp. actonii John C. Roos 1941-8-2 84 Riverside 609 Comment
  SEINET3866898  Ephedra aspera Sears 1977-10-12 S 578 Riverside Corn Spring, Desert Plam Oasis, permanent flowing spring, in wash area up in the mountain slopes of the Chuckwalla Mountains.; 0 549 Comment
  CAS-BOT-BC81546  Ephedra californica Lewis S. Rose 1955-3-14 55028 Riverside [Whitewater] White Water Wash, 3 mi. se. of Palm Springs Station 304 Comment
  JOTR32655  Ephedra californica La Doux, Tasha, M. Bell, A. Holt, A. Miller, K. Matthews 2007-5-23 1338 Riverside Joshua Tree National Park. where Queen Valley meets Pleasant Valley, just north of Malapai Hill; open bajada with pediments, near Geology Tour Road 1219 Comment
  JOTR34111  Ephedra californica La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2743 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Granitic bedrock slopes and outcrops (Stop 4) Comment
  POM299276  Ephedra californica A. M. Alexander, Louise Kellogg 1941-5-15 2183 Riverside north base of Eagle Mountains. 915 Comment
  RSA304959  Ephedra californica S. Carlquist 1982-4-18 15673 Riverside Sandy flats 16.4 miles north of entrance (from Highway 10) to Joshua Tree National Monument. Comment
  UCR75536  Epilobium campestre A. C. Sanders 1993-5-12 14010 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
  LA206124  Epilobium canum subsp. latifolium Carl Epling; 1927-3-27 sn Riverside Palm Springs Comment
  RSA484733  Epilobium canum subsp. latifolium A. C. Sanders, E. J. Lawlor 1988-10-22 8734 Riverside Pinyon Flats area, Santa Rosa Mountains, along the trail from Dolomite Mine to Horsethief Creek. 1200 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
  SD48520  Epilobium canum subsp. latifolium E. K. Balls, P. C. Everett 1957-11-4 22745 Riverside Snow Creek near old Fish Hatchery, North base, San Jacinito Mountains. 2300 Comment
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Jul 15 2012
  RSA698280  Epilobium oregonense J. R. Bruff 1934-7-5 s.n. Riverside [Unspecified] 2896 Comment
  SD28076  Epipactis gigantea Carl B. Wolf 1932-5-25 3662 Riverside North base of San Jacinto Mountains, mouth of east fork of Snow Creek Canyon. Rocks at water's edge. 671 Comment
  UCR19157  Epipactis gigantea John C. Roos 1948-5-29 3870 Riverside San Bernardino Mtns., Whitewater Canyon 856 Comment
  UCSB925  Epipactis gigantea Kamb, Peter 1948-7-11 Riverside Hall Canyon; San Jacinto Mtns 1645 Comment
  RSA684674  Equisetum laevigatum Gale Sphon 1955-5-22 s.n. Riverside Hemet Meadow. Comment
  SEINET7063427  Equisetum laevigatum A. G. Vestal 1947-3-30 s.n. Riverside Along Route 74, San Jacinto Valley. UTM Zone 11, 514767mE, 3733157mN. (WGS84/NAD83). 582 Comment
  UCR116955  Eragrostis A. C. Sanders, T. B. Salvato 2001-5-3 24114 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  CLARK-A1528-4640  Eragrostis curvula John C. Roos 1965-9-16 Riverside Lakeview Comment
  UCSB38377  Eragrostis pilosa Frederick Morris Reed 1903-11-30 662 Riverside collected in Riverside Comment
  UC665865  Eremalche exilis Ira L. Wiggins 1941-3-27 9685 Riverside 8 mi. n.e. Desert Center; s. end Coxcomb Mts. Comment
  RSA719035  Eremalche exilis Michael Honer 2005-3-11 2065 Riverside Rice Valley; 4.5 mi. SSE of Rice; 1.5 mi. E of ATSF railway. 220 Comment
  RSA695438  Eremalche rotundifolia Scott D. White, Michael Honer 2003-5-14 9289 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  JOTR01109  Eremalche rotundifolia Cole, James E. 1941-4-13 583 Riverside Joshua Tree National Park. .5 MILES NORTH OF MEEK'S CABIN, PINTO PASS 609 Comment
  CAS-BOT-BC160057  Eremothera boothii subsp. condensata Mrs. R. W. Campbell 1922-3-12 34 a Riverside Palm Springs Comment
  UCR279336  Eremothera refracta A. C. Sanders, Jim Malusa 2017-3-23 42921 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 2.3 miles east of Iris Pass 787 Comment
  UCR95954  Eriastrum densifolium subsp. densifolium Scott D. White 1996-8-1 4403 Riverside Peninsular Range; San Jacinto Mtns., Idyllwild area, Hwy 243 at Deer Springs trailhead and adjacent area 1829 Comment
  UCR6145  Eriastrum eremicum C. M. Bringle, H. Johnston 1967-5-13 B670513- 7 Riverside Sonoran (Colorado) Desert, Between Sky Valley and N Palm Springs on Dillon Rd., exact;y 3 mi. south of Bennett Rd. intersection, where Little San Bernardino Mtns. come within 100 ft of Dillon Rd. Both sides of road 152 Comment
  SD38839  Eriastrum eremicum subsp. eremicum Edith A. Purer 1935-4-21 6459 Riverside Desert floor, near Palm Springs. Comment
  UCR277789  Eriastrum eremicum subsp. eremicum Sarah J. De Groot 2005-5-16 4967 Riverside Litle San Bernardino Mountains, Desert Hot Springs area, vicinity of Morongo Creek. Along Worsley Rod paralleling Hwy 62 between Dillon Road and Indian Avenue 495 Comment
  UC774165  Eriastrum sapphirinum C. Epling and Wm. Robison 1933-6-24 Riverside San Gorgonio Wash Little San Bernardino Mountains Comment
  UCR158349  Eriastrum sapphirinum A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30089 Riverside Peninsular Range, Agua Tibia Mountains, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, end of Los Caballos Road in vicinity of water tank 488 Comment
  CAS-BOT-BC187906  Eriastrum sapphirinum subsp. dasyanthum Clare B. Hardham 1965-6-17 12950 Riverside Near Banning, San Jacinto Mountains Comment
  RSA0122945  Eriastrum sapphirinum subsp. dasyanthum John F. Green 2008-4-23 08 --16 Riverside SW of Perris, powerline route south of Ethanac Rd, and east of Theda St., east of Hwy 74 492 Comment
  CAS-BOT-BC515039  Eriastrum sapphirinum subsp. sapphirinum Carl B. Wolf 1932-8-4 3915 Riverside San Jacinto Mts., Point View, near Idyllwild 1645 Comment
  RSA0122975  Eriastrum sapphirinum subsp. sapphirinum Mary F. Spencer 1921-7-14 s.n. Riverside Idyllwild, San Jacinto Mounatins. 1616 Comment
  UCSB12338  Ericameria cooperi Dearing, Hugh; Dearing, Margaret 1936-12-25 Riverside Long Canyon, Colorado Desert Comment
  UCD131305  Ericameria cuneata Nancy Ryan Zabriskie; Walter Zabriskie 1971-4-9 361 Riverside around 2 miles up water service road south of Highway 74, Deep Canyon, north slope Santa Rosa Mountains. 1310 Comment
  RSA754133  Ericameria cuneata var. spathulata W. Schlegel, Kate Kramer 2009-11-9 62 Riverside Idyllwild: Keenwild Helibase in some rocks right below the landing platform/on the edge of the landing platform. Comment
  RSA772850  Ericameria linearifolia Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4841 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
  UCR58879  Ericameria linearifolia Steve Boyd, T. S. Ross, L. Arnseth 1989-4-2 3227 Riverside Peninsular Range, Vail Lake area, sandstone ridge between Kolb Creek and Temecula Creek, forming peninsula at SW end of Lake. Comment
  UCR115156  Ericameria palmeri var. pachylepis Mitch Provance 2000-8-24 2222 Riverside Jurupa Mountains, NW Jurupa Mtns; SW of the E extreme of Philadelphia St. 274 Comment
  UCR141252  Ericameria palmeri var. pachylepis A. C. Sanders, Kelly Volansky 2004-10-6 28818 Riverside Santa Ana Mtns./Santa Rosa Plateau, 41050 Avenida La Cresta, south of Sierra Maria Rd. and c. 1.5 mi. north of Tenaja Rd., c. 2 miles NW of the Mesa de Colorado 671 Comment
  UC1751187  Ericameria paniculata S. B. Parish 655 Riverside Whitewater Comment
  UCR140875  Ericameria parishii Chris E. True, Laurel Salzman 2004-8-20 s.n. Riverside San Jacinto Mtns., c. 1 km south of Twin Pines Ranch on USFS Rd 3S08, between Azalea and Twin Pines Creeks 1157 Comment
  RSA160568  Ericameria pinifolia J. D. Olmsted 1959-9-23 1008 Riverside 4 miles S of Hemet Lake on Hwy. 74, San Jacinto Mts. 1387 Comment
  CAS-BOT-BC293301  Ericameria teretifolia Lewis S. Rose 1936-12-24 36815 Riverside San Jacinto Mts., Palms to Pines Highway. 24 mi. SW. of Indio 1066 Comment
  UCD131707  Erigeron bonariensis Leslie Ede 1974-6-1 s.n. Riverside Blythe. Comment
  UCR201513  Erigeron breweri var. covillei Scott D. White, Justin M. Wood 2008-6-17 12176 Riverside San Jacinto Mountains, Garner Valley, USFS Kenworthy Station 1402 Comment
  RSA720464  Erigeron divergens Naomi Fraga, Bryan Carey 2006-6-1 1689 Riverside Near Morris creek on a 4W drive trail, ca. 1/2 mile SW of Tripp Meadow. 1585 Comment
  UC31467  Erigeron foliosus var. foliosus H. M. Hall Jun 1 1901-Jul 1 1901 2385 Riverside forests in vicinity Strawberry Valley; San Jacinto Mountains 1584 Comment
  SD232604  Erigeron strigosus Steve Morgan 1994-3-25 94 1 Riverside Riverside. In a cultivated area in the UCR Botanic Garden. Comment
  UCD65712  Eriochloa acuminata A. R. Roos 1937-11-28 Riverside East Washington St., Riverside. Comment
  UC70944  Eriochloa aristata var. aristata E. E. Schellenger 1905-12-1 5 Riverside Colorado Desert, Colorado River Colorado River; Colorado Desert, Colorado River Comment
  RSA696347  Eriodictyon crassifolium Kenneth Beard 1934-03 s.n. Riverside Corona Sky-line drive Comment
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Oct 31 2011
  UCR277517  Eriodictyon crassifolium Mitch Provance 2012-9-13 912- 06 Riverside Badlands of Western Riverside County, about 0.2 miles S of Mt. Davis, +- 2 miles SSW of Beaumont 848 Comment
  OBI55262  Eriodictyon crassifolium var. crassifolium Barbara Crumly 1953-5-23 s.n. Riverside Cranston Ranger Station Comment
  SD229190  Eriodictyon crassifolium var. crassifolium Dick Schwenkmeyer 2012-10-16 929 Riverside Approx. 2 mi. south of U.S. Highway 10 at Cabazon. 551 Comment
  RSA601086  Eriodictyon trichocalyx A. C. Sanders, J. Goetzen 1996-5-1 18124 Riverside San Bernardino Mtns: Morongo Indian Reservation, along dirt road in Hathaway Creek Canyon, N of Banning 793 Comment
  JEPS56714  Eriogonum davidsonii Marjorie D. Clary 1932-4-29 Riverside 15 mi n Indio (Dead Indian Trail); Colorado Desert 243 Comment
  JOTR33944  Eriogonum davidsonii La Doux, Tasha, M. Harding, M. Wheeler, and J. Harding 2010-6-2 2833 Riverside Joshua Tree National Park. Little San Bernardino Mountains, NW of Key's View and Inspiration Peak; bouldery outcrops along ridge line heading toward Juniper Flats Comment
  UCR281912  Eriogonum deflexum A. C. Sanders, Jim Malusa 2017-9-19 43339 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, canyon 4.65 km SW (211 deg. ) of Tabaseca Tank 744 Comment
  UC1348957  Eriogonum evanidum Louis B. Ziegler 1967-10-10 Riverside Hemet Valley San Jacinto Mts., Hemet Valley 1402 Comment
  UCR204360  Eriogonum evanidum LeRoy Gross, Duncan Bell 2008-9-16 3584 Riverside Peninsular Range; San Jacinto Mountains, west side of Garner Valley, near Hwy 74, c. 0.25 mi north from Ramona trailhead parking area 1365 Comment
  UCR177510  Eriogonum fasciculatum subsp. polifolium A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32529 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 640 Comment
  RSA0036808  Eriogonum fasciculatum var. fasciculatum Bob Rogers 1984-4-21 10 Riverside Along trail and bank area on the west side of Strawberry Creek heading upstream. Starting point was 4.9 miles from Cranston ranger station heading East on Hwy.74. 914 Comment
  RSA78791  Eriogonum fasciculatum var. polifolium Percy C. Everett, E. K. Balls, L. W. Lenz 1952-7-1 17266 Riverside 3 mi. S along banning to Idyllwild. 915 Comment
  SEINET3087525 Image available Eriogonum gracile H. S. Gentry 1954-7-26 14256 Riverside Dripping Spring along route 79 Comment
  RSA191431  Eriogonum gracile var. gracile E. W. Lathrop, Robert F. Thorne 1967-9-26 6647 Riverside 6 miles NW of Murrieta. Comment
  RSA595922  Eriogonum gracile var. gracile D. L. Banks, Lauren Raz 1996-11-5 1181 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, E of San Gabriel Church; Along the main road in the Reservation, approximately 0.2 miles E of San Gabriel Church, across from the local cemetery. 378 Comment
  CAS-BOT-BC257576  Eriogonum inflatum R. F. Hoover 1966-10-15 10168 Riverside Dead Indian Canyon Comment
  UCR3240  Eriogonum inflatum R. G. Sullivan 1972-4-20 720420- 6 Riverside Sonoran (Colorado) Desert/San Bernardino Mtns., Whitewater Canyon, 0.5 mi. north of Interstate 10 457 Comment
  CAS-BOT-BC269787  Eriogonum nudum var. pauciflorum James L. Reveal; Caroline G. Reveal 1972-8-9 2869 Riverside San Jacinto Mountains, along California Highway 243, about 0.1 mile northwest of the Vista Grande Ranger Station at the turnoff to Indian Creek Comment
  RSA424914B  Eriogonum saxatile Louis C. Wheeler 1931-10-3 235 Riverside Sumit Fern Valley-Tahquitz Valley trail, San Jacinto Mountains. 2500 Comment
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Jul 9 2012
  CAS-BOT-BC263506  Eriogonum thomasii Geo. B. Grant 1906-4-20 541 Riverside Palm Springs, Colorado Desert Comment
  HSC79212  Eriogonum thomasii A. C. Sanders 1985-3-24 5407 Riverside Coachella Valley, on floor of Box Canyon 9 mi. NE of Mecca on Hwy. 195 122 Comment
  HSC88767  Eriogonum thomasii Elizabeth Neese 1979-4-11 7093 Riverside Between Blythe and Rice, 11 mi. NW of Blythe. 305 Comment
  SEINET3088161 Image available Eriogonum thomasii George K. Helmkamp, E. A. Helmkamp 1998-2-18 2740 Riverside Chuckwalla Mtns: Graham Pass Rd, 10.6 mi. SSW of Chuckwalla Valley Rd. Comment
  UC634598  Eriogonum thomasii Margaret Stason 1927-2-12 Riverside 1000-Palm Canyon Colorado Desert, 1000-Palm Canyon Comment
  JEPS56822  Eriogonum trichopes W. L. Jepson 1927-4-12 11642 Riverside Painted Canyon Mecca Hills, Painted Canyon 76 Comment
  UCR259110  Eriogonum wrightii var. nodosum John F. Emmel 1995-4-22 1369 Riverside Sonoran (Colorado) Desert, McCoy Mountains, north end; canyon 0.6 air mile west of Arlington Mine 579 Comment
  UCR138559  Eriogonum wrightii var. subscaposum Steve Boyd, D. E. Bramlet 1988-10-8 2866 Riverside San Jacinto Mtns. area, Cahuilla Mountain, SW of Anza at head of Bautista Canyon, along the crest of the mountain 1707 Comment
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Sep 3 2020
  UC68594  Erioneuron pulchellum H. M. Hall 1905-5-1 5961 Riverside Colorado River Colorado Desert (canyons along river) Comment
  CAS-BOT-BC297334  Eriophyllum confertiflorum Louis C. Wheeler 1931-10-4 217 Riverside Hemet - Idyllwild Rd, San Jacinto Mts 1402 Comment
  CAS-BOT-BC297347  Eriophyllum confertiflorum A. C. Sanders; Kerry Knudsen; T. B. Salvato 2004-5-18 27906 Riverside Peninsular Ranges: Alberhill Mt 445 Comment
  RSA249829  Eriophyllum confertiflorum R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38076 Riverside San Jacinto Mountains: San Bernardino National Forest. Hilltop above Lake Fulmor. 1676 Comment
  RSA508339  Eriophyllum confertiflorum Ed LaRue 1989-5-28 s.n. Riverside 1.5 mi. NW Estelle Mountain, off Dawson Canyon Road; 1.5 mi. E. of Arcilla and 1.5 mi. SW of Monument Peak. 396 Comment
  UCSB6520  Eriophyllum confertiflorum Kamb, Peter 1947-6-7 Riverside Arid Transition Zone; Hall Canyon, San Jacinto Mts. 1645 Comment
  CAS-BOT-BC301786  Eriophyllum multicaule P. A. Munz 1922-4-29 5080 Riverside Leach Canyon, Santa Ana Mts 548 Comment
  CAS-BOT-BC301790  Eriophyllum multicaule A. G. Vestal 1929-3-28 s.n. Riverside 9 miles south of Hemet on St. John's Grade Comment
  UC134916  Eriophyllum multicaule C. R. Orcutt 1891-4-1 2272 Riverside near Elsinore Comment
  JOTR30964  Eriophyllum pringlei La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1939 Riverside Joshua Tree National Park. (Stop 1) Pleasant Valley at base of Hexie Mountains, near Blue Cut Gorge Comment
  UCR126494  Erodium botrys A. C. Sanders, K. C. Rose, James C. Dice, D. Woodard 1995-3-29 16284 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, San Gorgonio Pass; alluvial fan at the mouth of Snow Creek, between Hwy 111 and Snow Creek Village 427 Comment
  CDA4662  Erodium cicutarium M. L. Jack 1973-3-15 Riverside Banning. 0 Comment
  RSA0013157  Erodium cicutarium LeRoy Gross, Caitlin Elam 2013-5-14 6064 Riverside Garner cattle company (Garner ranch), east of Lake Hemet, and highway 74. West of the ranch's buildings. North of the road to the buildings, and south of the old landing strip. 1332 Comment
  RSA0125988  Erodium texanum Duncan S. Bell 2016-3-4 8814 Riverside Orocopia Mountains; northeast section of the range, in the hills to the west of Red Cloud Wash. 487 Comment
  UCR112971  Erodium texanum B. G. Pitzer, T. Tennant 1998-2-21 3537 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  UCR217546  Eryngium aristulatum var. parishii Diane Menuz 2009-5-14 496 Riverside Peninsular Ranges: Santa Ana Mountains, Santa Rosa Plateau. Western side of Mesa de Burro, in series of 4 vernal pools 609 Comment
  UCR174958  Erysimum capitatum Jennifer H. Jones, Thi (Teresa) Bui and Holly Summers 2006-5-31 352 Riverside Peninsular Ranges; San Jacinto Mtns., Parking lot and stream below parking lot on Calif. Hwy 243 across road from Lake Fulmor 1616 Comment
  JOTR16638  Erysimum capitatum var. capitatum Walters, Jim 1967-4-11 s.n. Riverside Joshua Tree National Park. COVINGTON FLATS 1645 Comment
  RSA483603  Erysimum capitatum var. capitatum D. Charlton 1988-5-21 1961 Riverside Thomas Mtn Rd, W of Garner Valley and S of Lake Hemet on Hwy 74. 1829 Comment
  SEINET13754614  Erythranthe diffusa B. Ertter, J. Strachan 1979-1 2975 Riverside Kenworthy Forest Station on Rt. 74 in Garner Valley, San Jacinto Mountains. Comment
  SD70878  Erythranthe floribunda Helen V. Witham 1969-7-2 170 Riverside Fairly common, De Luz Creek crossing, 4 mi. N of De Luz. 249 Comment
  CHSC35507  Erythranthe microphylla Jeanne Muro 1972-4-29 74 Riverside Ca. 5 mi. SW of Murrieta on Tenaja Rd. 655 Comment
  RSA0015894  Erythranthe parishii Scott D. White, Justin M. Wood 2008-7-8 12404 Riverside San Jacinto Mountains: Johnson Meadow. 1439 Comment
  RSA0022955  Eschscholzia androuxii Ora M. Clark 1929-2-23 1564 Riverside North Whitewater. Comment
  RSA0023134  Eschscholzia androuxii Henry J. Ramsey, Henry J. Ramsey 1937-2-26 887 Riverside Whitewater. Comment
  RSA433686  Eschscholzia californica G. R. Johnstone 1934-3-27 18569 Riverside Near Wildomar. Inland route to Temecula. Comment
  RSA433688  Eschscholzia californica N. C. Cooper 1949-6-3 4148 Riverside Temecula 762 Comment
  UC56236  Eschscholzia californica H. M. Hall Apr. 1903 3849 Riverside Moreno Valley Comment
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Mar 20 2011
  UCR172715  Eschscholzia californica Jun Hu 2000-5-11 22 Riverside San Jacinto Valley, SE of city of Winchester, Hills N of Diamond Valley 488 Comment
  RSA192345  Eschscholzia californica var. peninsularis E. W. Lathrop 1966-5-15 6312 Riverside 3 miles SE of Murrieta on the De Luz Road. Comment
  RSA663887  Eschscholzia minutiflora C. R. Annable 1995-3-15 2282 Riverside 2.7km SW of Valerie on road to Martinez Canyon. Comment
  UC635599  Eschscholzia minutiflora Margaret Stason 1927-2-12 Riverside 1000-Palm Canyon Comment
  UCD94251  Eschscholzia minutiflora Shannon M. Still; Steven M. Still 2008-4-7 387 Riverside California. Riverside County: Joshua Tree National Park. 940 Comment
  UCSB3648  Eschscholzia minutiflora Beeks, Richard 1952-4-4 Riverside 7 mi N or Mecca; in Box Canyon Comment
  CAS-BOT-BC419622  Eschscholzia parishii Ynez Whilton Winblad 1937-4-22 s.n. Riverside Box Canyon Comment
  CAS-BOT-BC419631  Eschscholzia parishii G. K. Helmkamp; E. A. Helmkamp 1998-2-18 2735 Riverside Colorado Desert: Chuckwalla Mts. 10.6 mi SW of Chuckwalla Valley Rd. on Graham Pass Road Comment
  CAS-BOT-BC419650  Eschscholzia parishii H. L. Mason 1928-3-10 4191 Riverside Whitewater River Comment
  OBI38395  Eschscholzia parishii A. C. Sanders, Charlton, Pitzer, Stewart, et al 1986-3-2 6061 Riverside Graham Pass, between the Chuckwalla and Little Chuckwalla Mts 503 Comment
  RSA676107  Eschscholzia parishii Scott D. White 2001-4-17 8338 Riverside Sonoran Desert: Shaver's Valley. North of the I-10 Freeway, ca. 16 miles east of Indio jtn. I-10 / SR 111. Bajada, washes, and mtn. foothills near powerline access roads at unnamed freeway exit accessing pump station. 457 Comment
  RSA676120  Eschscholzia parishii Scott D. White 2001-4-3 8231 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  UC855176  Eschscholzia parishii I. W. Clokey 1935-4-17 6631 Riverside Cottonwood Springs Comment
  UCR120586  Eschscholzia parishii Steven R. Hill 2001-4-29 33529 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
  CAS-BOT-BC419642  Eschscholzia parishii Edmund C. Jaeger 1922-3-4 s.n. Riverside Painted Canon [Canyon], Colorado Desert Comment
  RSA0022915  Eschscholzia parishii I. M. Johnston 1917-4-4 1003 Riverside Colorado Desert: Palm Canyon. 305 Comment
  RSA0023137  Eschscholzia parishii Anstruther Davidson 1893-04 s.n. Riverside Palm Springs. Comment
  UC195337  Escobaria vivipara var. alversonii S. B. Parish 1916-5-13 10861 Riverside Shaver's Well; Colorado Desert Comment
  RSA713796  Eucalyptus J. Lyman 1989-2-9 89 -2 Riverside Lakeview, Pressman property in the Bernasconi Hills, just S of the Ramona Expressway, S of Lake Perris and N of Nuevo. Comment
  RSA713798  Eucalyptus A. C. Sanders, Paul Moore 1991-7-25 11157 Riverside University of California Moreno Field Station, S of Alessandro Blvd & E of Lasselle,Moreno Valley. 488 Comment
  UCR234275  Eucalyptus A. C. Sanders 2012-4-12 40026 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. between Glen Ivy and Indian Truck Trail, c. 100 m SE of El Hermano Rd. 314 Comment
  IRVC27459  Eucalyptus gomphocephala A. C. Sanders, O. F. Clarke 1992-3-17 12069 Riverside University of California, Riverside Comment
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Sep 10 2011
  SD130318  Eucrypta chrysanthemifolia Ed LaRue 1990-4-13 Riverside 0.t mile northwest of Aguanga, north of Highway 79 and west of Highway 371. 640 Comment
  SD144470  Eucrypta chrysanthemifolia A. C. Sanders, P. MacKay, T. Thomas, O. Clarke 1997-5-4 20700 Riverside San Jacinto Mtns: N side of range, Twin Pines Creek below the confluence with Brown Creek 854 Comment
  UCR25546  Eucrypta chrysanthemifolia var. chrysanthemifolia John C. Roos 1941-9-14 174 Riverside Plateau in Reche Canyon Comment
  UCR279338  Eucrypta micrantha A. C. Sanders, Jim Malusa 2017-3-23 42949 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 3 miles east of Iris Pass 854 Comment
  UCR51984  Eucrypta micrantha Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2175 Riverside Sonoran (Colorado) Desert, Palen Pass at the N end of the Palen Mountains 500 Comment
  POM302490  Euonymus occidentalis var. parishii J. C. Roos 1943-8-8 2699 Riverside Hall Canyon, San Jacinto Mts. 1829 Comment
  CAS-BOT-BC202528  Euphorbia John H. Thomas 1957-3-30 6536 Riverside 0.8 miles east of Cactus City, about 13 miles east of Coachella, near U. S. Highways 60 and 70. Colorado Desert 518 Comment
  UCR176674  Euphorbia G. S. Nuessly 1980-10-14 s.n. Riverside Riverside: U.C. Riverside campus, above Picnic Hill 351 Comment
  UCR239858  Euphorbia O. F. Clarke 2004-8-21 s.n. Riverside Peninsular Range, Riverside; UCR Botanic Garden 351 Comment
  SEINET10739487  Euphorbia David B. Dunn, Harold L. Lint 1948-1-25 Dunn 3635 Riverside Found near Quad 6 on the Pushawalla Canyon, Indio Hills of the Colorado Desert; west of Indio. Comment
  UC1929948  Euphorbia albomarginata Scott D. White, Angelia Carey 2004-7-2 10551 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Poppet Creek Canyon. San Jacinto 7.5' Quad. Comment
  UCR262449  Euphorbia albomarginata John F. Green 2015-6-23 615- 03 Riverside Peninsular Range; San Jacinto Mtns. Region, Anza Valley, east edge of town of Anza, vacant lot at NE side of intersection of Hwy 371 and west end of Burnt Valley Rd. 1226 Comment
  HSC78931  Euphorbia misera R. F. Thorne, Drs. Fosberg, Sachet, Herbst 1983-4-23 55410 Riverside San Bernardino Mtns., mouth of Whitewater canyon, E of Whitewater Post Office at S end of ridge 412 Comment
  RSA314623  Euphorbia misera R. F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55410 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  UCR14422  Euphorbia ocellata subsp. ocellata A. C. Sanders 1974-9-18 0296 Riverside Riverside, Botanic Garden at U.C.R., Australian section near back fence 412 Comment
  RSA741083  Euphorbia polycarpa Justin M. Wood 2008-11-17 228 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  OBI14406  Euphorbia polycarpa var. hirtella Robert F. Hoover 1966-10-15 10157 Riverside Dead Indian Creek Wash, S of Palm Desert Comment
  RSA296137  Euphorbia polycarpa var. hirtella B. A. Prigge 1980-8-5 3879 Riverside Whitewater canyon: 1.1 miles N of Interstate 10. 473 Comment
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Jan 14 2010
  UCR277705  Euphorbia serpens Mitch Provance 2012-11-3 1112- 04 Riverside San Timoteo Canyon, West Beaumont, N side of Oak Valley Parkway (San Timoteo Canyon Rd.), 1.5 miles W of I-10. 709 Comment
  SD109085  Euphorbia setiloba Grady L. Webster, R. Hildreth 1966-12-10 7467 Riverside Wash in Box Canyon, ca. 9-10 miles northeast of Mecca on California 195. 239 Comment
  UCR242296  Euphorbia setiloba A. C. Sanders, T. B. Salvato 2012-10-12 40432 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Wileys Well Rd. c. 3 miles north of Wileys Well/ Bradshaw Trail 155 Comment
  RSA561782  Euphorbia spathulata Steve Boyd 1992-4-14 6846 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area; Western flank of Bluewater Canyon along Bluewater Trail. 341 Comment
  CAS-BOT-BC171041  Fagonia laevis Roxana S. Ferris; Rimo Bacigalupi 1958-3-19 13236 Riverside In wash arising in Big Maria Mts., Highway U.S. 95, 11.3 mi. N of Blythe Comment
  JOTR31776  Fagonia laevis La Doux, Tasha, Jim Andre 2009-3-10 385 Riverside Joshua Tree National Park. South end of the Cottonwood Mountains, near Pinkham Wash just north of aquaduct just inside park boundary; approx. 7mi west of south entrance 541 Comment
  RSA0121045  Fagonia laevis Duncan S. Bell, LeRoy Gross 2016-3-29 9122 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 5 air miles southeast of the summit of Martinez Mountain. 686 Comment
  SEINET3071532 Image available Fagonia laevis Andrew C. Sanders, L. Lubinsky, A. Knapp, P. J. MacKay & C. L. Sanders 1995-1 15922 Riverside Sonoran (Colorado) Desert; Coachella Valley, mouth of Fargo Canyon, Little San Bernardino Mtns., 1.2 mi. above junction with Aqueduct Road. 370 Comment
  UCR89547  Fagonia laevis George K. Helmkamp 1994-3-10 43- 3 Riverside Sonoran (Colorado) Desert, Indio Hills, canyon opening into Coachella Valley, 2 miles east of Thousand Palms on Ramon Road, and 1.3 miles north 122 Comment
  JOTR31928  Fagonia pachyacantha La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2169 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky wash draining into west Pinkham Wash Comment
  RSA731016  Fagonia pachyacantha M. Wall 2008-4-26 456 Riverside Chuckwalla Valley; along Chuckwalla Rd. just east of junction with Dupont Rd. 161 Comment
  UCR208455  Fagonia pachyacantha Scott D. White, Justin M. Wood 2009-3-24 12573 Riverside Colorado Desert, western foothills of Mecca Hills, c. 0.5 air mi east of the Coachella Canal and 4 air mi south of the I-10 Fwy 27 Comment
  UCD111851  Fatoua villosa A. C. Sanders 2004-8-10 28766 Riverside Perris-Aguanga Region. 3 miles ENE of Perris, new nursery growing grounds W of Menifee Road. (=Pozos Av.) and S of Nuevo Road, between San Jacinto River and Nuevo. 432 Comment
  UC1608284  Festuca arundinacea Steve Boyd, Tim Ross, and Dave Bramlet 1993-5-12 7338 Riverside from confluence with Los Alamos Canyon downstream Tenaja Canyon (San Mateo Canyon); Southern Santa Ana Mountains, San Mateo Wilderness Area, San 365 Comment
  CLARK-A1528-4652  Festuca grayi John C. Roos 1952-4-9 5482 Riverside Fairmount Park 259 Comment
  UCR105434  Festuca microstachys A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20636 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
  UCR108861  Festuca microstachys Heidi A. Haid 1968-1 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR113151  Festuca microstachys A. C. Sanders 1998-3-11 21680 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, north of Diamond Valley, near old mine site above San Jacinto Valley, south of end of Warren Rd. 610 Comment
  SEINET1004490  Festuca myuros T. B. Salvato, Kent Beaman 2005-1 831 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
  UCR92644  Festuca myuros Steve Boyd 1986-4-2 1626 A Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  UCR137694  Festuca myuros var. myuros D. L. Banks, V. W. Steinmann 1997-3-13 1481 A 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
  UCD170918  Ficus palmata A. C. Sanders; R. E. Riefner Jr. 2009-8-11 37152 Riverside Peninsular Range, Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River. 238 Comment
  UCR250906  Filago arizonica A. C. Sanders 2014-4-18 41021 Riverside Peninsular Range, Temescal Canyon, hills along De Palma Rd. between Indian Truck Trail and Horsethief Canyon roads, c. 100 m south of I-15 401 Comment
  RSA774293  Filago depressa Duncan S. Bell, The Desert Survivors Organization 2011-4-8 2189 Riverside Northwest section of the Granite Mountains; approximately 1 air mile southeast of junction of Highway 62 and Highway 177. 470 Comment
  UCR196305  Filago depressa R. F. Thorne, M. Z. Thorne 1973-3-30 42686 Riverside Sonoran (Colorado) Desert, Morongo Valley Canyon, near mouth at junction of roads to Morongo Valley and Desert Hot Springs; [vicinity of Hwy 62 crossing of Mission Creek] 488 Comment
  UCR51950  Filago depressa Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2108 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  CSUSB2046  Fouquieria splendens Wayne White 1975-5-17 707 Riverside Red Cloud Road south of Highway I-10. Chuckwalla Mountains. 441 Comment
  RSA0018454  Frangula californica subsp. cuspidata D. Charlton 1988-5-21 1974 Riverside Thomas Mountain Road, from North to South. West of Garner Valley and South of Lake Hemet on Hwy 74. 1829 Comment
  UCR110402  Frankenia salina A. C. Sanders, D. Bramlet, Mihai Costea, T. B. Salvato 1999-10-15 23185 Riverside San Jacinto Valley, Mystic (San Jacinto) Lake, 1 mile west of Jackrabbit Trail on Gilman Springs Rd., 0.4 mi. west of Quail Lake Golf C. entrance, 2 mi. WNW of Eden Hot Spr. 436 Comment
  SEINET10783477  Fraxinus J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12855 Riverside Near White Water, west of Joshua Tree National Park; north of I-10 (just west ofjunction with CA 62) on Whitewater cut-off, then several kilometers on Whitewater Canyon Road to where it crosses over the river. Comment
  RSA263768  Fraxinus dipetala E. W. Lathrop 1968-5-22 6900 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  SD119908  Fraxinus dipetala Louis B. Ziegler 1969-5-20 364 Riverside San Jacinto Mountains; Bautista Canyon, upper canyon . 1143 Comment
  UCR264473  Fraxinus dipetala S. J. Myers, Vesta A. Myers, Bill Hopson 2015-1-2 1074 Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon, lower part of canyon, near Corona 427 Comment
  RSA516888  Fritillaria biflora Steve Boyd 1986-3-1 1375 Riverside Gavilan Plateau, Gavilan Hills. 625 Comment
  UCR225781  Funastrum cynanchoides var. hartwegii Dave Silverman 2010-3-30 7886 A Riverside Sonoran (Colorado) Desert, East bajada flank of southern McCoy Mtns, 1 km west of Black Creek Rd, 7.8 km east of McCoy Peak, and 4.8 km N of I-10 165 Comment
  POM76095  Funastrum hirtellum Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  RSA339250  Funastrum hirtellum R. F. Thorne, Gertrud Dahlgren 1979-8-23 54607 Riverside Pinto Basin RoadL Cholla Garden 1098 Comment
  RSA799405  Funastrum hirtellum Thomas Stoughton, Duncan S. Bell, Debra Nelson 2011-2-20 742 Riverside North side of the Mecca hills, side canyon between the head of Box Canyon and Shavers Well, roughly 7.4 miles from Interstate 10 on Box Canyon Road 305 Comment
  SEINET4560610  Funastrum hirtellum Duncan S. Bell 2009-1 298 Riverside Arica Mountais: east side of range, approximately 1 air mile northwest of Priests Well. 342 Comment
  POM10491  Galium andrewsii Charlotte M. Wilder s.n. Riverside Near Pine Flat. 1524 Comment
  RSA500082  Galium andrewsii subsp. andrewsii Steve D. Boyd, Tim S. Ross, L. Arnseth 1989-4-2 3230 Riverside Vail Lake area: Between Kolb Creek and Temecula Creek, forming peninsula at SW end of lake. Comment
  UCR121242  Galium andrewsii subsp. andrewsii Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2292 Riverside San Jacinto Mtns, Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest 1700 Comment
  UCR201640  Galium andrewsii subsp. andrewsii Scott D. White, Justin M. Wood 2008-6-18 12211 Riverside San Jacinto Mountains, K Flat Meadow 1445 Comment
  CAS-BOT-BC223037  Galium angustifolium A. C. Sanders 2006-5-19 32435 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
  CLARK-A1528-3946  Galium angustifolium Charles S. Papp 1964-6-6 511 Riverside Cleveland National Forest 853 Comment
  JEPS56071  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1966-6-18 4245 Riverside Black Mountain Rd 1/2 mi below Cinco Poses Spring (open s-facing slope); San Jacinto Mts. 2133 Comment
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May 13 2008
  JEPS56075  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1966-1-21 4177 Riverside Hwy 79 10.1 mi s Hemet (e-facing slope in hills) Comment
  POM12926  Galium angustifolium subsp. angustifolium Philip A. Munz 1922-6-27 5858 Riverside Santa Rosa, Santa Rosa Mts. 2012 Comment
  POM367709  Galium angustifolium subsp. angustifolium N. R. Zabriskie, W. M. Zabriskie 1972-6-18 526 Riverside Along fire road S of S end of Marion Ridge Rd., Pine Cove, NW of Idyllwild. 1921 Comment
  RSA0013154  Galium angustifolium subsp. angustifolium LeRoy Gross, Duncan S. Bell 2013-4-30 6037 Riverside Surveyed from Apela Drive, right at junction of road to sewage disposal ponds, south to Strawberry Creek. Started near 33.73367N, 116.75074W. And ended at 33.72912N 116.75098W. Collection site near 1510 Comment
  RSA761999  Galium angustifolium subsp. angustifolium Patrick Garrett, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 81 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  UCR189590  Galium angustifolium subsp. jacinticum Andrea Salzman 2006-6-29 156 Riverside Peninsular Range, San Jacinto Mountain Range, Pine Cove off of Red Hill Road, 0.1 mi south of Alvin Meadow 1566 Comment
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Feb 19 2017
  UCR92051  Galium aparine Scott D. White, M. Jacobsmeyer 1996-4-20 3953 Riverside Perris-Aguanga Basin region, SW of Perris: hillside south of the San Jacinto River channel 518 Comment
  JOTR33778  Galium multiflorum La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-6-1 2930 Riverside Joshua Tree National Park. Little San Bernardino Mountains: Northeast side of Quail Mountain; Steep, loamy, loose slopes just below the summit (stop 3) Comment
  JOTR33926  Galium multiflorum La Doux, Tasha, M. Harding, M. Wheeler, and J. Harding 2010-6-2 2817 Riverside Joshua Tree National Park. Little San Bernardino Mountains, NW of Key's View and Inspiration Peak; bouldery outcrops along ridge line heading toward Juniper Flats Comment
  JOTR33928  Galium multiflorum La Doux, Tasha, M. Harding, M. Wheeler, and J. Harding 2010-6-2 2818 Riverside Joshua Tree National Park. Little San Bernardino Mountains, NW of Key's View and Inspiration Peak; bouldery outcrops along ridge line heading toward Juniper Flats Comment
  JEPS52943  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1966-6-17 4240 Riverside Poppet Flat San Jacinto Mts. (at Keyes Drive) 1097 Comment
  RSA0051333  Galium porrigens var. porrigens Valerie Soza, Steve Boyd 2004-6-22 1728 Riverside San Jacinto Mountains, Forest Service Rd 5S13. 1463 Comment
  UCR17453  Galium stellatum subsp. eremicum K. Stolte 1978-5-25 s.n. Riverside Sonoran (Colorado) Desert, south side Hwy 111, at Windy Point; c. 5 mi. west of Palm Springs, Coachella Valley 300 Comment
  UC666516  Galium stellatum var. eremicum Annie M. Alexander and Louise Kellogg 1941-5-18 2200 a Riverside n slope Colorado Desert, Eagle Mountains 1066 Comment
  CAS-BOT-BC178386  Garrya flavescens J. C. Roos 1966-4-23 s.n. Riverside Skyline Drive, Santa Ana Mtns., above Corona Comment
  CAS-BOT-BC178390  Garrya flavescens Carl B. Wolf 1939-1-20 9485 Riverside East side Santa Ana Mts., along Eagle Motor Way, 1 mi. below summit. 914 Comment
  CAS-BOT-BC158075  Garrya veatchii S. B. Parish 1918-4-3 11697 Riverside Oak Lodge, mouth San Jacinto [Canon] Canyon 914 Comment
  UC454604  Gayophytum diffusum subsp. parviflorum I. J. Condit 1910-6-21 Riverside Strawberry Valley San Jacinto Mts. 1676 Comment
  UCR23532  Gayophytum diffusum subsp. parviflorum John C. Roos 1937-8-18 2529 Riverside San Jacinto Mtns, Round Valley 2744 Comment
  UCR4659  Gayophytum heterozygum Frank C. Vasek 1964-7-19 640719- 01 Riverside Peninsular Range; San Jacinto Mtns., Pine Cove Comment
  SEINET10492283  Gayophytum nuttallii David B. Dunn 1946-8-17 Dunn 2686 Riverside Grass near stream at camp in taquity valley damp meadow area. San jacinto mountains. 2438 Comment
  UCSB38069  Gayophytum oligospermum Lewis, Harlan 1962-8-2 Riverside San Jacinto Mnts. Pine cove road, .4 miles west of Idyllwild Banning Road. Comment
  RSA681879  Gazania linearis Scott D. White 2001-3-13 8165 Riverside Perris / Elsinore Basin: Menifee / Sun City area. Valleys and slopes east of Canyon Lake and west of Goetz Rd. 442 Comment
  CAS-BOT-BC303579  Geraea canescens Ira L. Wiggins 1941-3-24 9570 Riverside 0.3 mile S of Myoma, 4.6 miles N of Indio Comment
  RSA4932  Geraea canescens C. B. Wolf 1932-4-27 3066 Riverside Colorado Desert, Chuckwalla Valley, 16 mi. east of Desert Center. 122 Comment
  RSA699242  Geraea canescens J. R. Bruff 1927-3-13 s.n. Riverside Thousand Palms Comment
  UC1922402  Geraea canescens Naomi Fraga, Lisa Rojas 2005-2-10 1405 Riverside Colorado Desert; Northeastern Colorado Desert region; Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 361 Comment
  UC17131  Geranium californicum H. M. Hall Jul 1901 2464 Riverside Tauquitz Valley San Jacinto Mountains 2438 Comment
  POM50215  Geranium richardsonii H. M. Hall 1901-07 2336 Riverside Vicinity of Deer Springs, in damp places. Comment
  RSA0112627  Gilia A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35597 Riverside Peninsular Range; San Jacinto Mtns.: Coldwater Creek watershed, along foot trail from May Valley Road toward mapped spring. 1500 Comment
  UC748762 Image available Gilia abramsii Herbert L. Mason 1926-4-30 3112 Riverside 1 mi s Temecula; Temecula Canyon; Temecula Canyon, Riverside Co. Comment
  RSA4383  Gilia angelensis Dorothy R. Wolf 1932-3-20 29 Riverside Richman Ranch 2.5 mi N of De Luz. SW. 457 Comment
  RSA501034  Gilia angelensis Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3155 Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  RSA606302  Gilia angelensis Jon E. Keeley 1994-4-22 25337 Riverside Shipley Reserve. 590 Comment
  RSA688862  Gilia angelensis Scott D. White, Michael Honer 2003-5-13 9240 Riverside Whitewater Canyon Road, 0.4 of a mile from the junction with Interstate 10. Whitewater Canyon washWhitewater Canyon, ca. 2 miles north of Bonnie Bell. 579 Comment
  UC1537499  Gilia angelensis Gordon H. True Jr. 1935-2-26 17 Riverside Mockingbird Canyon 365 Comment
  UC217962  Gilia angelensis P. A. Munz and I. M. Johnston 1922-5-19 5350 Riverside 5 mi ne Murietta; ne of Murietta 457 Comment
  UCR90273  Gilia angelensis Scott D. White, S. J. Myers, S. Ogg Wilcox 1995-7-16 3328 Riverside Santa Ana Mtns, Proposed pipeline route: Lake Elsinore Pumped Storage Hydroelectric project. Steep NE facing mtn slope west of Lake Elsinore, SE of Hwy 74. 915 Comment
  UCR231812  Gilia capitata Brent Barnes, A. C. Sanders, Giles Waines, UCR Plant Taxonomy Class 2007-5-12 16 Riverside Peninsular Range; San Jacinto Mtns., dirt forest service road north of Poppet Flats, west of Hwy 243 1253 Comment
  POM3526  Gilia capitata subsp. abrotanifolia L. T. Street s.n. Riverside Temecula Canyon. Comment
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Mar 27 2011
  UCR237213  Gilia diegensis Duncan S. Bell, Valentin Arvizu 2010-5-10 988 Riverside San Jacinto Mountains, San Bernardino National Forest, Garner Valley, c. 1.1 air mi southeast of junction of FS Road 6S13 and FS Road 6S04 1349 Comment
  JEPS69628  Gilia latifolia W. L. Jepson 1914-5-18 6027 Riverside n Indio (County Well); Colorado Desert, n of Indio, County Well 304 Comment
  CAS-BOT-BC407609  Gilia ochroleuca subsp. exilis E. A. McGregor 1941-6-12 14 Riverside Idyllwile, San Jacinto Mountains Comment
  RSA0083764  Gilia ochroleuca subsp. exilis Scott D. White, Tasha La Doux 2000-4-20 7698 Riverside South of Hemet: Gibbel Flat in the Santa Rosa Hills. 610 Comment
  SD261000  Gilia ochroleuca subsp. exilis Andrew C. Sanders 1994-5-29 14576 Riverside San Bedrnardino Mountains: East BrANCH Millar Canyon, along FS Road 4S45 1200 Comment
  UCR201467  Gilia ochroleuca subsp. exilis Scott D. White, Justin M. Wood 2008-5-15 11979 Riverside San Jacinto Mountains, Johnson Meadow 1476 Comment
  UCR51965  Gilia scopulorum Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2157 Riverside Sonoran (Colorado) Desert, Palen Pass at the N end of the Palen Mountains 500 Comment
  JOTR33776  Gilia stellata La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-6-1 2928 Riverside Joshua Tree National Park. Little San Bernardino Mountains: Northeast of Quail Mountain and just west of Johnny Lang Mine; Previously burned loose, rocky, gravelly slope above large drainage (stop 2) Comment
  UCR114124  Gilia stellata B. G. Pitzer, J. Ross 1998-3-8 3608 .1 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  SBBG55269  Gilia stellata T. Criswell 1977-2-27 15 Riverside S side of St Hwy 195, ca. 500' W of its jct with Interstate 10, Upper Box Cyn 365 Comment
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Aug 23 2016
  POM157911  Githopsis diffusa subsp. filicaulis P. A. Munz 1927-5-20 10807 Riverside 10 miles S. of Hemet. Comment
  RSA562490  Gnaphalium californicum Steve Boyd, Tim Ross 1992-5-5 7246 Riverside Southern Santa Ana mountains, San Mateo Canyon Wilderness Area. Isolated grassland area south Oak Flats, southwest of the Bluewater Trail 732 Comment
  POM15072  Gnaphalium chilense Mary F. Spencer 1922-4-10 1959 Riverside Palm Springs, alt 500ft, Riverside County 152 Comment
  POM358870  Gnaphalium microcephalum H. de Forest, Jack Rempel 1933-10-29 18652 Riverside Snow Creek Canyon. 541 Comment
  UC485697  Gnaphalium palustre Katharine Brandegee 1906-1 Riverside near Riverside; Wilders Ranch Comment
  UC896945  Gnaphalium palustre P. A. Munz 1922-9-6 6375 Riverside Hidden Lake San Jacinto Mts., Hidden Lake 2438 Comment
  UCR111964  Gnaphalium palustre A. C. Sanders, T. B. Salvato 2000-5-25 23420 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
  UCR172230  Gnaphalium palustre John F. Green 2006-5-3 s.n. Riverside Peninsular Ranges, French Valley, unincorporated Riverside County; along San Diego Aqueduct right of way between Benton Road and the obvious drainage to the south 412 Comment
  UCR88293  Grayia spinosa A. C. Sanders, K. C. Rose 1995-4-5 16379 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  RSA244349  Gutierrezia californica C. W. Tilforth 1973-8-17 958 Riverside Campus Ave. between Foothill Blvd. & Baseline Rd., Upland. Comment
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Jun 22 2013
  UCR108865  Gutierrezia californica Heidi A. Haid 1969-8-20 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  RSA305666  Gutierrezia sarothrae C. W. Tilforth, Walter Wisura 1979-10-11 1918 Riverside 0.3 mi. west of Highway 74 on Thomas Mtn. Rd., ca. 1 mi. south of Lake Hemet, Garner Valley 1341 Comment
  CDA3156  Halogeton glomeratus H. Lloyd 1948-10-2 Riverside Near Corona. 0 Comment
  RSA643449  Haplopappus cuneatus A. C. Sanders 1995-11-26 17921 Riverside Tule Creek Valley, NE of Tule Pk, between Aguanga & Anza, S of Hwy 371. Tule [peak] Rd., 1/2 mi. E of Spanish Spur Trail, sec. 14. 1280 Comment
  SDSU18360  Harpagonella palmeri C. Matt Guilliams 2008-2-21 458 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. 418 Comment
  RSA0066601  Harpagonella palmeri Steve Boyd 1982-3-28 s.n. Riverside Gavilan Hills region, Temescal Canyon, south slope of Alberhill Mountain just east of extensively mined area. 427 Comment
  UCR116592  Hedypnois cretica A. C. Sanders, T. B. Salvato 2001-5-24 24367 Riverside Perris-Aguanga Basin, Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon west of junction of Av. [Calle] Pina Colada 345 Comment
  CDA36603  Helianthemum scoparium var. aldersonii A. C. Browne 1952-5-13 Riverside Temecula. 0 Comment
  POM308572  Helianthemum scoparium var. vulgare Henry J. Ramsey, Henry J. Ramsey, Don Ramsey 1940-3-15 3245 Riverside Aguanga. (north of Riverside Co.) Comment
  UCR121173  Hemizonia fasciculata D. E. Bramlet 1989-5-21 1879 Riverside Lake Skinner area, Tucalota Creek drainage, in the center of the Tucalota Hills. 5,500 ft. (~1 mi.) east of 'Old' Warren Road. 482 Comment
  UCR260553  Hemizonia fasciculata T. B. Salvato, Matt Malle 2014-5-29 8017 Riverside Perris-Aguanga Basin, Menifee, northeast corner of Bundy Canyon Road and Cottonwood Hills (= Sunset Ave), c. 1 mi west of Murrieta Rd and 4.3 mi southeast of Canyon Lake 534 Comment
  RSA16354  Hemizonia kelloggii P. C. Everett 1935-6-18 7178 Riverside San Juan Canyon, near Ortega Highway on road to Santiago Peak. 701 Comment
  RSA735946  Hemizonia kelloggii Scott D. White, Justin M. Wood 2008-6-13 12101 Riverside Beaumont Badlands: San Timoteo Canyon, near El Casco Lake (private pond) E of the road. 579 Comment
  UCR38267  Hemizonia kelloggii Diane L. Ill 1985-5-12 41 Riverside Gavilan Hills, Harford Springs, 1..6 mi south of Cajalco Road on Gavilan Road. Right side of road along Spring 610 Comment
  UCR189785  Hemizonia mohavensis Diane Menuz 2007-7-19 330 Riverside Peninsular Range; San Jacinto Mountains, c. 0.5 km [east] of Highway 74, along a dirt road (Apple Canyon Road) 1335 Comment
  UCR121167  Hemizonia paniculata D. E. Bramlet 1989-6-13 1922 Riverside Domenigoni Valley, 3,000 ft. east of the MWD canal and 500 ft. south of Newport Road. 458 Comment
  UCR231746  Hemizonia paniculata John F. Green 2008-4-23 08- 08 Riverside Peninsular Range; SE Gavilan Hills, SW of Perris, powerline route south of Ethanac Rd, and east of Theda St., east of Hwy 74 492 Comment
  UCR116951  Hemizonia pungens subsp. laevis A. C. Sanders, T. B. Salvato 2001-5-3 24119 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  UCR66977  Hemizonia pungens subsp. laevis D. E. Bramlet 1990-7-26 2062 Riverside Peninsular Range, Murrieta Creek at the Rancho California Street bridge in Temecula, W side of creek, just east of Diaz Rd & within the creek channel 330 Comment
  UCR68063  Hemizonia pungens subsp. laevis D. E. Bramlet, A. Parikh 1990-6-13 2023 Riverside San Jacinto Valley, fallow field just south of Simpson Rd., c. 440 m. west of intersection with Warren Rd. 500 Comment
  UCR231748  Herniaria hirsuta subsp. cinerea John F. Green 2008-4-21 03- 04 Riverside Peninsular Range, south edge of Perris, drainage way between housing tracts, west of Goetz Rd. and Alabaster Loop, east of the San Jacinto River 457 Comment
  HSC25815  Hesperocallis undulata R. W. Spjut 1972-3-20 2286 Riverside Riverside/San Bernardino Co., Colorado Desert, 4-10 mi. W of Rice (N end of Maria Sand Dunes), along Hwy. From Rice to 29 Palms Hwy. or to Desert Center. 305 Comment
  JEPS61976  Hesperocallis undulata Marjorie D. Clary 1932-4-13 1592 Riverside Colorado Desert, Coachella Valley, Mecca Coachella Valley; Colorado Desert, , Mecca -60 Comment
  RSA377051  Hesperocallis undulata L. H. Jones 1910-3-17 s.n. Riverside In Sand, Riverside Mountain, Colorado river. Comment
  UCR217806  Hesperocallis undulata Jim Andre, T. La Doux 2010-2-28 12546 Riverside Lower Colorado River Valley, along Hwy 95 c. 20 miles south of Vidal Junction, at SE corner of Riverside Mountains 145 Comment
  RSA709793  Hesperocnide tenella A. C. Sanders 2004-5-5 27768 Riverside Gavilan Hills: Route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, ca. 0.25 mi. NNW of Harford Spring, ca. 1.2 mi. NE of Gavilan Peak. 579 Comment
  UCR98207  Hesperocnide tenella B. G. Pitzer 1997-4-1 3049 Riverside Lakeview Mtns, c. 0.75 air mi. SSW of Mt. Rudolph, c. 1 air mi NE of Contour (Juniper Flats) Rd. 655 Comment
  SD186321  Heteromeles arbutifolia Andy C. Sanders 2004-6-20 28211 Riverside Peninsular Range: Temescal Canyon, Serrando Highlands project, between Glen Ivy Hot Springs and Arcilla, NE side of the i-15 Fwy, south of Clay Canyon Rd. 305 Comment
  UC12317  Heteromeles arbutifolia Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Mountains Comment
  RSA0074604  Heterotheca fastigiata Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia, et. al. 2010-4-12 4753 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
  RSA0075898  Heterotheca grandiflora Steve Boyd, T. S. Ross 1989-8-28 3799 Riverside Vail Lake area, Temecula Creek at confluence with lake and adjacent sedimentary hills to the east. 442 Comment
  SEINET10419994  Heterotheca grandiflora Norman C. Cooper 1943-9-11 901 Riverside Banning. 610 Comment
  UCSB15429  Heterotheca sessiliflora subsp. echioides Breedlove, Dennis 1961-8-5 Riverside Along State Highway 74, 5 miles east of Keen Camp, Memet Valley, San Jacinto Mountains 1341 Comment
  RSA785656  Heterotheca sessiliflora var. sanjacintensis J. C. Semple, J. Chimielewski 1987-9-30 8985 Riverside CA-74, 12.7 km south of CA-243, south of Lake Hemet. Comment
  JOTR31944  Hibiscus denudatus La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2182 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky drainages feeding into southwest Pinkham Wash Comment
  UCR168263  Hibiscus denudatus Scott D. White 2001-4-3 8261 Riverside Sonoran (Colorado) Desert, Shavers Valley, near the I-10 Freeway, c. 15 miles east of Indio junction of I-10 and Calif. SR 111, adjacent to powerline access roads at unnamed freeway exit accessing pump station 473 Comment
  POM13398  Hieracium horridum E. C. Jaeger 1922-8-22 1016 Riverside Long Valley trail 2439 Comment
  SEINET10760613  Hieracium horridum David B. Dunn 1946-8-17 Dunn 2725 Riverside Found 1.4 miles west of Hidden Lake, San Jacinto Mts. Comment
  CAS-BOT-BC207950  Hoffmannseggia microphylla Marcus E. Jones 1924-2-26 s.n. Riverside Shaver's Well, Colo Desert Comment
  CSUSB1228  Hoffmannseggia microphylla Rodney Hendrick 1965-3-14 Riverside In sandy area, dry wash, Box Canyon about 8 miles east of Mecca 182-274 Comment
  NY43420  Hoffmannseggia microphylla C. R. Annable 1995-3-10 2260 Riverside 1.6km S of Lake Cahuilla County Park Comment
  RSA698741  Hoffmannseggia microphylla W. Marquart 1938-3-12 s.n. Riverside 15 mi. W of Blythe. Comment
  SBBG68864  Hoffmannseggia microphylla M. N. Ackley 1928-3-24 612 Riverside near Palm Springs 138 Comment
  UCR76162  Hordeum depressum A. C. Sanders 1993-4-1 13661 Riverside Perris-Aguanga Basin Region, western edge of Hemet, 14 acre parcel at NE corner of intersection of Myers St. and Devonshire Ave., 0.75 mile NE of the intersection of Florida Ave (Hwy 74) and Warren Rd, just south of Tres Cerritos 460 Comment
  UCR269908  Hordeum intercedens D. E. Bramlet, Amy Hills, R. E. Riefner Jr., Russell Huddleston 2005-3-2 3669 Riverside Perris-Agunaga Basin Region; San Jacinto Valley, west of Hemet, east of San Diego Canal, west of Warren Rd., south of Hwy 74, north of W Stetson Ave. 457 Comment
  UCR91873  Hordeum intercedens A. C. Sanders, K. D. Jones, D. Malueg 1996-4-20 18046 Riverside San Jacinto Valley, San Jacinto River between Nuevo and Lakeview, from 11th to 13th Streets, E side of the river channel 433 Comment
  UCR154540  Hordeum marinum Jason L. Hlebakos 2005-5-18 709 Riverside Santa Rosa Plateau, Mesa de Burro in the research area 602 Comment
  RSA500089  Hordeum murinum subsp. leporinum Steve Boyd, Timothy S. Ross, L. Arnseth 1989-4-2 3222 Riverside Vail Lake area, riparian woodland area at N end of Kolb Creek, near campground. 457 Comment
  SBBG119362  Horkelia clevelandii O. Mistretta, M. Elvin 1995-6-19 1772 Riverside San Jacinto Mtns 1463 Comment
  JEPS68625  Horsfordia newberryi Marjorie D. Clary 1930-1 Riverside Coral Reef Ranch Colorado Desert Comment
  RSA6022  Hulsea vestita subsp. callicarpha C. B. Wolf 1932-8-5 3939 Riverside Along trail from Tahquitz Valley to San Jacinto Peak. 2560 Comment
  SEINET480192  Hulsea vestita subsp. callicarpha D. Wilken 1969-6-30 Riverside Riverside County Road R1, near Black Mtn. junction, 8.6 miles north of Idyllwild, San Jacinto Mtns. Comment
  UC32859  Hulsea vestita subsp. callicarpha H. M. Hall Jun 1 1901-Jul 1 1901 2313 Riverside near Tahquitz; San Jacinto Mts. 2682 Comment
  CAS-BOT-BC401316  Hypericum scouleri Mrs. E. C. Van Dyke 1928-7-22 s.n. Riverside Idyllwild Comment
  RSA85119  Hypochaeris glabra J. C. Roos 1952-4-30 5611 Riverside Hills between Camp Haan and Riverside 518 Comment
  CAS-BOT-BC219736  Hyptis emoryi P. Munz 1919-3-25 2304 Riverside Palm Springs Comment
  JEPS63222  Hyptis emoryi E. E. Schellenger May 1920 Riverside canyon e Coachella (Colorado Desert); , e of Coachella Comment
  JEPS63229  Hyptis emoryi Marjorie Clary 1934-3-3 Riverside w Indio Mtn. (18 mi w of Indio, Carrizo Canyon); w of Indio Mtn., Carrizo Canyon 304 Comment
  RSA305949  Hyptis emoryi Fay A. MacFadden 1940-3-17 15284 Riverside Road from 29 Palms to Indio, 2/3 of way to Indio. San Bernardino Mtns Comment
  UC484148  Hyptis emoryi Carl B. Wolf 1930-4-1 1498 Riverside near Cathedral City Comment
  UC570745  Hyptis emoryi H. L. Mason 1928-3-10 4231 Riverside Coachella Mountains Hidden Springs Canyon; , Hidden Springs Canyon Comment
  UC883113  Hyptis emoryi Ivan Johnston Apr 4 1917-Apr 6 1917 1095 Riverside near Palm Springs; Colorado Desert, near Palm Springs Comment
  UCD124924  Hyptis emoryi L. S. Rose 1935-12-21 s.n. Riverside Colorado Desert, Palm Canyon Wash. 182 Comment
  UCR109532  Hyptis emoryi R. D. Goeden, Don W. Ricker 1971-4-1 s.n. Riverside Sonoran Desert, Chuckwalla Mountains at Granite Well, SW of Desert Center, 0.4 mi. past sign saying 'Edmund C. Jaeger Nature Sanctuary' in bottom of canyon at old road crossing 366 Comment
  UCR245920  Hyptis emoryi Naomi Fraga, David Fracker, Thomas Stoughton 2012-3-15 3945 Riverside Sonoran (Colorado) Desert, off of Box Canyon Rd., south of Shaver Well in a wash 229 Comment
  UCD126497  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
  RSA33642  Iris hartwegii subsp. australis Robert L. Rutherford 1945-6-17 1672 Riverside Big Oaks Canyon, Banning. 1220 Comment
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Oct 19 2010
  IRVC15234  Isoetes orcuttii Gordon A. Marsh 1975-5-25 s.n. Riverside Santa Rosa Plateau; Mesa de Burro. Peninsular Ranges, Santa Ana Mountains Comment
  UC987813  Ivesia saxosa Reid Moran 1941-5-5 846 Riverside e of Quail Spring; Joshua Tree National Monument 1300 Comment
  POM47847  Jepsonia parryi H. Baer 1923-11-5 s.n. Riverside Rice Canyon, Elsinore. Comment
  UCR207809  Juglans californica O. F. Clarke 2004-3-14 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  UCR210  Juglans californica Eugene Cardiff 1950-3-15 s.n. Riverside San Bernardino Valley Region, Jurupa Hills [=Jurupa Mtns.] 518 Comment
  UCR189781  Juglans californica var. californica Theresa Johnson 2007-10-9 402 Riverside Peninsular Ranges, Perris-Aguanga basin, Estelle Mountain 498 Comment
  UCR209199  Juglans hindsii A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37147 Riverside Peninsular Range, Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River 238 Comment
  UCR264640  Juncus balticus Mitch Provance 2013-4-8 413- 02 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR180060  Juncus bufonius var. congestus Mitch Provance 2005-5-18 9815 Riverside Warm Springs Valley, Nichols road wetland area at Alberhill Creek, south of the I-15 Freeway and Collier Ave., along the SE side of Pierce St., properties on both the NE and SW sides of Baker St. in the city of Elsinore 396 Comment
  RSA500554  Juncus bufonius var. occidentalis Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-4 3594 Riverside Vail Lake area, sandy benches of Kolb Creek drainage, around N extension of Woodchuck Rd. 488 Comment
  RSA740792  Juncus effusus Scott D. White, Justin M. Wood 2008-7-9 12420 Riverside Johnson Meadow 1415 Comment
  IRVC17937  Juncus kelloggii Gordon A. Marsh, Karlin G. Marsh 1980-5-18 s.n. Riverside Santa Ana Mountains, Santa Rosa Plateau, pool #2. Comment
  UCR24952  Juncus oxymeris A. C. Sanders 1980-7-18 1669 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
  RSA674566  Juncus rugulosus Scott D. White 2000-5-3 7769 Riverside Temecula Area: Near Wolf Valley. Valley and hillsides along unnamed tributary to Temecula Creek, directly S of Red Hawk subdivision. 351 Comment
  SEINET3881129  Juncus tiehmii Barbara Ertter, Jeffrey L. Strachan 1979-6-26 2987 Riverside Banning-Idyllwild Road (Hwy 243) at Black Mtn turnoff (Forest Rd 4s01), San Jacinto Mts.; 0 Comment
  UCR22029  Juncus xiphioides Steve Boyd 1980-5-3 180 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 625 Comment
  UCR272500  Juncus xiphioides Mitch Provance 2012-7-25 712- 02 Riverside San Gorgonio Pass, Banning, Smith Creek, NE of West Ramsey St. and Highland Home Rd. 1410 Comment
  UCR39205  Juncus xiphioides M. Roskey, F. Boyen 1985-5-28 524 Riverside Transverse Range, Big Morongo Preserve of The Nature Conservancy. south of Morongo Valley, main canyon - 2 mi downstream, where the old gate stood. 640 Comment
  CAS-BOT-BC234568  Justicia californica John Thomas Howell 1928-1-30 3306 Riverside 2 miles e. of Shaver's Well, Colorado Desert Comment
  POM6744  Justicia californica P. A. Munz, L. T. Street, G. Williams 1919-3-28 2383 Riverside Palm Canyon 183 Comment
  RSA160457  Justicia californica J. D. Olmsted 1958-3-30 91 Riverside Southern drainage toward Salton Sea, Transition zone in first Mtns N of southern entrance, Joshua Tree National Monument. 838 Comment
  RSA398809  Justicia californica B. C. Templeton 1930-3-22 1659 Riverside Palm Springs. 400 Comment
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Aug 27 2011
  RSA82009  Justicia californica F. W. Peirson 1916-04 1172 Riverside abundant about mouth of Tahquitz Canyon, Palm Springs. Comment
  SD46093  Justicia californica Herbert L. Mason 1952-4-7 14212 Riverside Palm Canyon Comment
  SEINET2163464 Image available Justicia californica Philip A. Munz 1940-3-24 15692 Riverside 3 miles south of Cottonwood Springs, eagle Mountains 460 Comment
  UC1039797  Justicia californica Herbert L. Mason 1928-3-11 4251 Riverside Palm Springs Comment
  SBBG54439  Justicia californica R. Langham 1966-3-14 4 Riverside rd to Tramway above Palm Springs, San Jacinto range 304 Comment
  JOTR29189  Kallstroemia californica La Doux, Tasha 2005-9-8 1302 Riverside Joshua Tree National Park. Fried Liver Wash 395 Comment
  RSA793268  Kallstroemia californica Aaron C. Sedgwick, Cody Leslie 2012-9-20 125 Riverside South of Essex in Rice Valley - Take Rice/Blythe Rd. ~3 miles south and turn left on unmarked road. The wash is on the northern side of the unmarked road ~3 miles east. 235 Comment
  UCR242298  Kallstroemia californica A. C. Sanders, T. B. Salvato 2012-10-12 40424 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Wileys Well Rd., 0.1 mi. above I-10 junction, below Ironwood St. Prison 120 Comment
  JEPS29482  Keckiella antirrhinoides Lauramay T. Dempster 1962-4-17 1887 Riverside Whitewater Canyon; about 1 mi below Fish Hatchery Comment
  RSA0119982  Keckiella antirrhinoides Duncan S. Bell, Thomas Stoughton 2016-4-13 9270 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting along the Cactus Spring Trail, in the vicinity of Horsethief Creek. 1047 Comment
  RSA33552  Keckiella antirrhinoides N. C. Cooper 1944-5-7 1190 Riverside Banning. 701 Comment
  RSA424822  Keckiella antirrhinoides Christopher Davidson 1973-4-1 1789 Riverside Hwy 71/79, appx. 7 mi from jct of Hwy 395 south. 412 Comment
  RSA543937  Keckiella antirrhinoides Steve D. Boyd 1991-5-10 6215 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA666638  Keckiella antirrhinoides A. C. Sanders, Mark A. Elvin, Julie Vanderwier 2002-4-22 25000 Riverside The Badlands: summit of Mt. Eden, SW of Beaumont. 686 Comment
  UCD123746  Keckiella antirrhinoides T. B. Salvato; Kent Beaman 2005-5-16 784 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
  UCD123748  Keckiella antirrhinoides A. C. Sanders; T. B. Salvato 2001-5-3 24083 Riverside Perris-Aguanga Basin region: Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley. 494 Comment
  UCR248185  Keckiella antirrhinoides David J. Keil 1983-4-15 16899 Riverside east of Temecula on SR 79 Comment
  UCSB17553  Keckiella antirrhinoides Otey, D. 1963-5-4 Riverside Banning to Idyllwild Road; 2.5 miles south of Banning 853 Comment
  RSA450072  Keckiella cordifolia J. C. Roos, L. Roos 1952-6-24 5786 Riverside In the hills west of Beaumont. Comment
  UCD123812  Keckiella cordifolia June Latting 1973-6-30 s.n. Riverside Riverside/Orange County: Santa Ana Mountains: off Skyline Drive above Corona on Sierra Peak Road. 823 Comment
  SBBG66592  Keckiella rothrockii R. Hoffmann 1929-9-6 Riverside above Tahquitz Valley 2438 Comment
  POM11402  Keckiella rothrockii subsp. jacintensis Philip A. Munz 1922-9-6 6400 Riverside Round Valley. 2744 Comment
  SEINET3224407  Keckiella ternata G. Goodwin 2012-6-15 3461 Riverside 6 miles south of Banning at the junction of highway 243 and the road to Mt. Edna 1070 Comment
  GMDRC6555  Keckiella ternata var. ternata J. M. Andre 2012-6-15 30508 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
  UC38717  Koeleria macrantha H. M. Hall 1901-6 2376 Riverside vicinity Strawberry Valley; San Jacinto Mountains, vicin of Strawberry Valley 1584 Comment
  CAS-BOT-BC61436  Krameria bicolor Annie M. Alexander; Louise Kellogg 1941-5-14 2166 Riverside Near Shaver Summit 502 Comment
  LA45673  Krameria bicolor K. Kinsel; 1930-4-5 sn Riverside Box Canyon Comment
  JEPS64843  Krameria erecta Samuel B. Parish Mar 1882 Riverside Agua Caliente; Colorado Desert [near Palm Springs] Comment
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Jun 22 2012
  LA45698  Krameria erecta Carl Epling; William Robison 1933-6-26 sn Riverside Little San Bernandino Mountains, Basin 5 mi. S of Lost Horse Wells Comment
  RSA20295  Krameria erecta Roxana S. Ferris, Ruth P. Rossbach 1938-5-15 9560 Riverside 1 mile below Cottonwood Springs Comment
  RSA409439  Krameria erecta Gale Sphon 1955-5-22 s.n. Riverside 5 miles south of Pinon Flats, Palms to Pines Hiwy. [74]. Comment
  UCR239243  Krameria grayi Andrew Monks, Jackie McConnaughy, Malia Volke 2010-1 035 Riverside Colorado (Sonoran) Desert, McCoy Wash, road going north from Black Rock Road, south side of private boundary, north of Hwy I-10 244 Comment
  RSA0094466  Lactuca serriola Duncan S. Bell 2015-8-12 8595 Riverside Orocopia Mountains; southwestern section of the range, collecting at a spring in the southern section of the Dos Palmas area. Temperature at around 120 degrees. -41 Comment
  RSA696130  Lactuca serriola A. C. Sanders, Mark Elvin, Jane Rodgers 2001-8-17 24604 Riverside Mojave Desert, Little San Bernardino Mtns.: Stubbe Spring, Joshua Tree National Park, 4.35 mi. (airline) SW from park road in Lost Horse Valley 1341 Comment
  UCR167858  Lactuca serriola T. B. Salvato, Melissa Clemons 2005-6-23 1327 Riverside Peninsular Range; Temescal Valley, 3 miles NW of Alberhill, Temescal Canyon Road at Corona [Lee] Lake 366 Comment
  RSA698328  Langloisia schottii J. R. Bruff 1932-3-22 s.n. Riverside Between Garnet and Edom Comment
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Nov 3 2011
  UCD107211  Larrea tridentata Gordon Pilone 1961-3-1 101 Riverside White Water Canyon one-half mile below fish hatchery. San Bernardino Mt. Range. 457 Comment
  UCR249820  Lasthenia coronaria T. B. Salvato, John Lovio 2013-3-19 7365 Riverside Perris-Aguanga Basin, Menifee Valley, Los Alamos Road at its crossing of Warm Springs Creek, and hill west of Jeanette Drive 402 Comment
  RSA609950  Lasthenia glabrata subsp. coulteri D. E. Bramlet 1995-5-5 2407 Riverside 7.5 km west of Lakeview and some 90m SE of the intersection of the Ramona expressway and Martin Road (Road to Lakeview Hot Springs). 435 Comment
  UCR103175  Lasthenia gracilis Scott D. White, J. Greene 1997-3-12 4774 Riverside Perris Basin, Sun City, near Interstate Hwy 215, south of Perris and north of Menifee, low hills east of Bavaria Drive 488 Comment
  UCR117217  Lasthenia gracilis B. G. Pitzer 2000-4-20 4125 Riverside Mead Valley, Air Force property bordering Nandina Road, across from (N of) the T-intersection with Brown Street. 515 Comment
  UC1540425  Layia platyglossa Charles B. Fiker 1946-4-8 3365 Riverside at Temecula 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
  UCR250908  Layia platyglossa A. C. Sanders 2014-4-18 41024 Riverside Peninsular Range, Temescal Canyon, hills along De Palma Rd. between Indian Truck Trail and Horsethief Canyon roads, c. 100 m south of I-15 401 Comment
  RSA570692  Lemna minor Steve Boyd, J. Travis Columbus 1993-10-23 8198 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, upper Morrell Canyon along Morgan Trail (5W02). 878 Comment
  CAS-BOT-BC215768  Lepechinia E. W. Lathrop 1973-6-28 7440 Riverside Trail between El Carriso and Santiago Peak, Cleveland Nat'l Forest 1219 Comment
  RSA485839  Lepidium fremontii T. S. Elias 1988-2-26 10677 Riverside Joshua Tree National Monument, Cottonwood Spring region, along trail from Mastodon Peak to Lost Palms Oasis. Comment
  SD136238  Lepidium latifolium Dylan T. Hannon 1993-5-6 175 Riverside Norco, ca 3 miles west of Interstate 15, along north side of Santa Ana River bordering dairy fields Comment
  RSA586148  Lepidium strictum D. L. Banks, S. D. Boyd 1995-3-16 110 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. E of the Dripping Springs Alcove, N slope of Wildhorse Peak, on the Wildhorse Trail. 616 Comment
  JEPS53779  Lepidium virginicum W. L. Jepson 1901-5-25 1457 Riverside Coyote Canyon to Van Deventer Ranch; Santa Rosa Peak Comment
  POM9008  Lepidium virginicum var. pubescens P. A. Munz, R. D. Harwood 1920-3-20 3398 Riverside Temescal Canyon 366 Comment
  RSA85151  Lepidium virginicum var. robinsonii J. C. Roos 1952-4-9 5475 Riverside Fairmount Park 259 Comment
  UC1536949  Lepidium virginicum var. robinsonii Gordon H. True Jr. 1935-3-11 66 Riverside Box Springs Sycamore Canyon 426 Comment
  RSA3329  Lepidospartum squamatum C. B. Wolf 1931-10-14 2452 Riverside Whitewater Wash, 1/2 mile above the bridge on the Banning to Indio Road 366 Comment
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Sep 23 2011
  RSA697079  Lepidospartum squamatum J. R. Bruff 1927-11-24 4 Riverside Whitewater. Comment
  UC472877  Lepidospartum squamatum M. F. Spencer 1918-4-1 Riverside Palm Canyon; Colorado Desert 600 Comment
  UC1101604  Leptochloa mucronata Malcolm A. Nobs and S. Galen Smith 1948-9-3 489 Riverside 2 mi n Indio; Imperial Valley Comment
  CLARK-A1528-71  Leptochloa uninervia Fred B. Essig 1966-9-12 Riverside Riverside Comment
  JEPS69871  Leptodactylon pungens W. L. Jepson 1901-5-25 1456 Riverside Coyote Canyon , Coyote Canyon (sw of Santa Rosa Mts.) Comment
  JOTR31064  Leptodactylon pungens La Doux, Tasha, Maria Harding, Mark Wheeler 2010-5-20 2046 Riverside Joshua Tree National Park. Little San Bernardino Mountains; STOP 3: west side of Quail Mountain region on steep north facing slope with loose loamy soil Comment
  POM364530  Leptosiphon ciliatus N. C. Cooper 1944-7-16 1559 Riverside San Jacinto Mountains, above Pine Cove. 2073 Comment
  POM13198  Leptosiphon lemmonii P. A. Munz 1922-5-20 5477 Riverside Kenworthy, Covering miles of sandy flats. 1463 Comment
  RSA525335  Leptosiphon lemmonii Steve Boyd, A. C. Sanders, Mark Skinner 1990-4-28 4465 Riverside Vail Lake area, Hwy R3 (Sage rd) at junction with Debby Road. just S of Sage. Comment
  OBI8134  Leptosyne californica David J. Keil, Malcolm McLeod, Dirk Walters 1977-3-28 12072 Riverside Joshua Tree Natl Monument, along Pinto Basin Rd 11 mi S of N park boundary Comment
  SD5326  Lessingia glandulifera var. glandulifera L. W. Nuttall Aug 1931 Riverside Idyllwild, Mt. San Jacinto. 1525 Comment
  UCR189810  Lilium parryi Josh Koepke 2005-8-10 067 Riverside Peninsular Range- San Jacinto Mountains, Northern region of San Jacinto Mts, c. 1 km northeast of Highway 243, in stream above (east) Dark Canyon campground road 1767 Comment
  UCR49262  Linanthus androsaceus subsp. micranthus Steve Boyd 1986-4-2 1631 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  PASA745  Linanthus bigelovii 1928-3-3 Riverside Hidden Springs, Colorado Desert Comment
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Aug 27 2016
  SBBG5977  Linanthus bigelovii H. and M. Dearing 1942-3-6 4811 Riverside Cathedral City Comment
  RSA0009862  Linanthus bigelovii Marcus E. Jones 1903-5-11 10241 Riverside Whitewater. 305 Comment
  UC1929482  Linanthus ciliatus Valerie Soza, Naomi Fraga, Sarah Swartzentruber 2003-6-25 1702 Riverside Peninsular Ranges; San Jacinto Mountains region; Slope above junction of Dark Canyon and Fuller Mill Creek. Comment
  SBBG34194  Linanthus dianthiflorus T. L. Secrest 1951-5-19 Riverside from Idyllwild to Hemet Lake Comment
  SEINET6692571 Image available Linanthus dianthiflorus Bonnie C. Templeton 1930-4-9 1010 Riverside Near Banning., Colorado Desert 400 Comment
  UC665884  Linanthus dianthiflorus Ira L. Wiggins 1941-3-27 9692 Riverside 4 mi n Whitewater Comment
  RSA395904  Linanthus dianthiflorus subsp. dianthiflorus Steve Boyd 1986-4-22 1779 Riverside Gavillian Hills: Plateau remnant on ridge E of Estelle Mountain, S of Dawson Canyon. Comment
  RSA487446  Linanthus dianthiflorus subsp. dianthiflorus Jack Easton 1988-5-2 s.n. Riverside Anza area. 1189 Comment
  RSA0053904  Linanthus floribundus Tracy Tennant, Mitch Provance 1998-6-16 MOR- 409 Riverside Morongo Indian Reservation, upper Millard Canyon, north of Cabazon 1098 Comment
  UC23557  Linanthus floribundus subsp. glaber Mrs. Gregory 1892-1 Riverside San Jacinto Comment
  CAS-BOT-BC226874  Linanthus jaegeri H. M. Hall 1901-6-1 2323 Riverside Tauquitz [Tahquitz] Peak, San Jacinto Mt. 2621 Comment
  UC219269  Linanthus lemmonii P. A. Munz and I. M. Johnston 1922-3-20 5477 Riverside Kenworthy San Jacinto Mts. 1463 Comment
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Mar 25 2011
  UC23789  Linanthus liniflorus Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Valley Comment
  CLARK-A1528-711  Linanthus maculatus Charlotte Stocks 1965-5-10 Riverside Whitewater Wash Comment
  SEINET2445412  Linaria canadensis Daphne K. Christopher, Hannah Stevens 2003-4-3 77 Riverside Uc Riverside, Motte Rimrock Reserve. Off Hairstreak Trail. 536 Comment
  RSA496571  Linaria canadensis var. texana Steve Myers 1988-2-24 s.n. Riverside Temescal Canyon, ca. 1/4 mi. W of intersection of Hwy I-15 and Indian Truck Trail. 381 Comment
  UCR207521  Linum grandiflorum O. F. Clarke 2004-2-27 s.n. Riverside Peninsular Range, Riverside; UCR Botanical Garden 412 Comment
  UCR119830  Linum lewisii var. lewisii George K. Helmkamp 1998-6-27 4110 Riverside Santa Rosa Mtns., 5.8 mi SE of Hwy 74 along Santa Rosa Mtn Rd. (= Santa Rosa Truck Trail = F. S. Rd. 7S02), below Mountain Home Spring 1799 Comment
  UCR160958  Lithophragma A. C. Sanders 1997-4-3 20158 Riverside Lake Skinner area, near north foot of Black Mountain, slopes south of Crown Valley 726 Comment
  UCR91218  Lithophragma affine Scott D. White 1996-3-31 3859 Riverside Elsinore Basin, Bundy Canyon, SE of Lake Elsinore; c. 1 road mile (+- 0.2 mi) east of Bundy Canyon Road exit from Hwy I-15. About 40 ft. south of road along mapped intermittent blueline stream 463 Comment
  RSA632878  Lithophragma affine subsp. affine R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38141 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  SEINET6188281  Logfia arizonica David Silverman, Onkar Singh 2010-1 7843 Riverside Sonoran (Colorado) Desert; NW of Blythe, Palo Verde Mesa, 1.4 km east of Black Creek Rd, 4.9 km west of McCoy Wash, and 8.8 km north of I-10 151 Comment
  RSA775384  Logfia filaginoides Duncan S. Bell 2011-4-10 2246 Riverside Northwest side of the Arica Mountains; northwestern section of project area; collecting in a large wash approximately 3.5 air miles south of Highway 62. 299 Comment
  UC32054  Logfia filaginoides W. G. Wright 1890-1-1 1769 Riverside Colorado Desert Comment
  UCR126973  Lolium perenne A. C. Sanders, T. B. Salvato 2003-5-9 26591 Riverside San Jacinto Valley, west of Hemet, west edge of Warren Road just north of Hwy 74 (Florida Ave.) 457 Comment
  RSA192222  Lolium perenne subsp. multiflorum E. W. Lathrop 1960-5-6 4792 Riverside 10 miles west of Murrieta. Comment
  IRVC28529  Lolium rigidum Walter Graves 2002-5-15 502- 22 Riverside grown at U.C.R. in Agricultural Operations Fields Riverside 305 Comment
  SFV11717  Lonicera subspicata M. L. Vincent 1963-7-8 431 Riverside Santa Ana Mountains Upper San Juan Campground, Highway 74. Comment
  CAS-BOT-BC234888  Lonicera subspicata var. denudata Cecil Hart 1926-7-4 s.n. Riverside San Jacinto Mts. Comment
  SBBG7372  Lonicera subspicata var. denudata H. and M. Dearing 1940-6-8 4348 Riverside Palms to Pines Hwy, W of Ribbonwood Comment
  UC917860  Lotus argophyllus var. argophyllus Frank W. Gould 1944-4-5 2225 Riverside 17 mi e Temecula Comment
  UC1506120  Lotus argyraeus R. T. Clausen 1963-4-23 63063 Riverside ridge s Red Mt.; Transverse Ranges Comment
  RSA5427  Lotus crassifolius C. B. Wolf 1932-8-4 1540 Riverside Point View near Idyllwild. 1646 Comment
  UCR17301  Lotus grandiflorus Tim Robertson 1971-5-14 s.n. Riverside San Jacinto Mtns, graded turnout areas on Hwy 74, midway between Valle Vista and Mountain Center. Comment
  UCR155156  Lotus hamatus A. C. Sanders, Kelly Volansky 2005-3-17 29205 Riverside Perris-Aguanga Basin Region, French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., c. 0.5 mi. NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  UCR228932  Lotus hamatus A. C. Sanders 2011-4-6 39001 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
  UCR42357  Lotus hamatus N. M. Fellows, A. C. Sanders, A. Strickland 1986-4-8 188 B Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Oasis de Los Osos Preserve, off Snow Creek Canyon at the N foot of the San Jacinto Mountains, 1 mi west of Snow Creek Village 489 Comment
  RSA90301  Lotus hamatus F. W. Peirson 1919-4-12 714 Riverside Along the Tahquitz Creek stream near Palm Springs Comment
  JEPS55482  Lotus heermannii W. L. Jepson 1901-5-22 1362 a Riverside Palm Canyon to Van De Venter's Comment
  JEPS55489  Lotus heermannii W. L. Jepson 1903-8-7 2288 Riverside Strawberry Valley San Jacinto Mt. 1676 Comment
  SEINET3696056 Image available Lotus heermannii B. Ertter, J. Strachan 1979-6-26 2988 Riverside Banning-Idyllwild Road at Black Mtn turnoff, San jacinto Mts Comment
  RSA406176  Lotus nevadensis var. nevadensis N. C. Cooper 1944-7-16 1561 Riverside San Jacinto Mountains, above Pine Cove. 2073 Comment
  UC489410  Lotus nevadensis var. nevadensis C. V. Meyer Jun 1927 206 Riverside Saunders Meadow San Jacinto Mts. 1676 Comment
  POM12087  Lotus oblongifolius Mary F. Spencer 1921-6-15 1736 Riverside Idyllwild. 1616 Comment
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Jun 17 2012
  UCR169313  Lotus oblongifolius T. B. Salvato, John F. Green 2004-5-27 604 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
  SEINET10484457  Lotus rigidus L. Rose 1935-12-23 Rose 35694 Riverside Above deep canyon, san jacinto mts. 22 Mi s of cathedral city. Rock slopes. 1067 Comment
  UCR126497  Lotus salsuginosus A. C. Sanders, K. C. Rose 1995-4-27 16733 Riverside Sonoran (Colorado) Desert, Coachella Valley, foot of the Little San Bernardino Mtns., canyon east of Fan Hill, just outside Joshua Tree Nat. Park 549 Comment
  UCR214336  Lotus salsuginosus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38375 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
  RSA27017  Lotus salsuginosus var. brevivexillus C. L. Hitchcock 1940-3-30 5872 Riverside Cottonwood Spring. Comment
  RSA652456  Lotus scoparius C. J. Humphrey 1936-6-7 162 Riverside [No locality information] Comment
  UCR180694  Lotus scoparius subsp. brevialatus Mitch Provance 2003-4-26 9885 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
  UCR187500  Lotus scoparius subsp. brevialatus Theresa Johnson 2006-5-11 098 Riverside Peninsular Range;, Santa Rosa Plateau, Los Alamos Canyon above confluence with San Mateo Canyon 427 Comment
  UCR250883  Lotus scoparius subsp. brevialatus S. J. Myers, Jennifer Tobin, Michelle Tobin 2013-3-13 1052 Riverside Lakeview Mountains, along powerline access road 0.22 mi. NE (25 deg. ) of intersection of Contour Ave. & Truffaut Dr. 613 Comment
  RSA652458  Lotus scoparius var. brevialatus Marion P. Harthill 1973-2-17 1574 Riverside Snow Creek, Palm Springs 366 Comment
  UCR20970  Lotus scoparius var. brevialatus A. C. Sanders 1980-5-2 1427 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  CSUSB1247  Lotus strigosus Margaret Ferro 1970-5-10 15 Riverside Highway 60 to San Jacinto turnoff; 4 miles, then 0.25 mile off east side of road, in wash. 457 Comment
  JEPS65161  Lotus strigosus W. L. Jepson 1935-4-19 17077 Riverside San Gorgonio Pass Comment
  RSA263766  Lotus strigosus E. W. Lathrop 1968-6-2 6947 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. Comment
  RSA619566  Lotus strigosus D. L. Banks 1997-5-5 2004 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
  UCR84840  Lotus strigosus A. C. Sanders, K. C. Rose, D. Woodard 1995-3-15 16146 .1 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, along Whitewater River wash between Windy Point and Hwy I-10, Coachella Valley 396 Comment
  UCR86871  Lotus strigosus A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16279 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, San Gorgonio Pass; alluvial fan at the mouth of Snow Creek, between Hwy 111 and Snow Creek Village 427 Comment
  UCR87627  Lotus strigosus A. C. Sanders 1994-5-30 14592 Riverside San Bernardino Mountains, north-northeast of Beaumont at Highland Springs, hills north of the end of Bellflower Ave., at Dutton St 950 Comment
  RSA457754  Lotus tomentellus Steve Boyd, Sara Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2121 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  RSA554205  Lotus tomentellus Theo. Glenn 1991-5-2 91 -14 Riverside McCoy Mountians, NW of Blythe. (T4S, R20E, sec. 32). 350 Comment
  CLARK-A1045-401  Ludwigia peploides George K. Helmkamp 1979-5-15 Riverside Jurupa ""at S.A. Picnic Area""; ; Fontana 7.5' Q 243 Comment
  RSA0036701  Lupinus Robert F. Thorne 1973-5-23 43864 Riverside Santa Rosa Plateau: Mesa de Colorado. 610 Comment
  RSA0043329  Lupinus John F. Emmel 1991-5-18 1172 Riverside Hemet; near intersection of Hemet Street and Thornton Avenue. 536 Comment
  JOTR32829  Lupinus andersonii La Doux, Tasha, E. Babich, M. Brown 2008-9-30 1553 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Valley, near Lost Horse Ranger Station; active wash near base of granitic outcrops 1250 Comment
  CLARK-A1045-305  Lupinus arizonicus George K. Helmkamp 1977-3-20 Riverside Deep Canyon Pinyon Pines area; ; ; Palm Desert 15'Q 1066 Comment
  SEINET6180888  Lupinus arizonicus D. W. McNeal 1980-4-18 2305 Riverside Beside Hwy. #195 in Mecca Canyon, 9.6 mi. sw. of the jct. of Interstate #10.; 0 Comment
  UCR114148  Lupinus arizonicus B. G. Pitzer, J. Ross 1998-3-8 3614 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCSB42384  Lupinus arizonicus Corsino, Linda 1980-3-24 Riverside Near intersection of Interstate 10 and South entrance to Joshua Tree National Monument 289 Comment
  RSA583482  Lupinus bicolor Steve Boyd 1995-5-13 8512 Riverside Santa Ana Mountains, south of Elsinore Peak near intersection of road to radio towers on summit and trail following old Main Divide Road grade. 1037 Comment
  RSA763417  Lupinus bicolor Scott D. White, Justin M. Wood 2009-5-21 12880 Riverside San Jacinto Mountains: Garner Valley, 0.5 miles NW of Morris Ranch Rd (Kenworthy Ranger Station). 1372 Comment
  SEINET3101908  Lupinus bicolor Marc A. Baker, with Michelle Cloud-Hughes 2011-6-12 17378 Riverside Goff Flat, 5.5km SW of Pyramid Peak Comment
  RSA495788  Lupinus bicolor subsp. microphyllus Steve Boyd, T. S. Ross, L. Arnseth 1989-3-11 2887 Riverside Vail Lake area, mouth of Temecula Creek Cyn, 1.5 mi west of Vail Lake Dam. 390 Comment
  RSA590649  Lupinus bicolor subsp. umbellatus E. W. Lathrop 1960-4-15 4747 Riverside 14 miles west of Murrieta, in low valley pasture in Tenaja Canyon. 610 Comment
  SD63735  Lupinus breweri Peta Mudie 1965-7-5 488 Riverside Dry SW slope on NW side of Santa Rosa Mountain, on unpaved road from Hwy 74 to National Forest campsite 1000 Comment
  RSA581751  Lupinus concinnus subsp. optatus M. Wall, Lorrae Fuentes 1995-4-13 100 Riverside San Jacinto Mountains, along Hwy 243 out of Banning, 10 miles south of Interstate 10. Comment
  LA205096  Lupinus excubitus Elizabeth McClintock; 1938-7-17 sn Riverside San Jacinto Mountains, near Pine Cove Comment
  SBBG35091  Lupinus excubitus T. L. Secrest 1951-5-19 Riverside near Idyllwild Comment
  SEINET2062854 Image available Lupinus excubitus Howard S. Gentry 1954-7-27 14258 Riverside Dripping Springs along route 79 Comment
  POM128361  Lupinus excubitus var. hallii Thomas Craig 1927-4-23 208 Riverside Glen Ivy. Comment
  SEINET10631127  Lupinus hirsutissimus Greg Gust, Leith Nye 2005-3-11 Gust 542 Riverside Lake Elsinore City Limits. Hwy 74 ca. 2 mile W of Lake Elsinore on hill slope pullout. 691 Comment
  SEINET10488674  Lupinus hirsutissimus David B. Dunn 1948-3-14 Dunn 3781 Riverside Flat open sands near hidden springs ranch. 3 Mi. S of the indio hills; Colorado desert. Comment
  SEINET10485438  Lupinus hyacinthinus David B. Dunn 1946-8-17 Dunn 2716 Riverside 1/4 mi. Along trail to hidden lake from round meadow. San jacinto mts. Comment
  JEPS65300  Lupinus latifolius var. parishii W. L. Jepson 1903-8-4 2280 Riverside Chalk Hill San Jacinto Mt. (south hillside, San Jacinto Mt.); San Jacinto Mt. Chalk Hill, South hillside 1493 Comment
  UC15767  Lupinus latifolius var. parishii Geo. F. Reinhardt June, 1897 Riverside San Jacinto Mountains Comment
  UCR174247  Lupinus microcarpus A. C. Sanders, T. B. Salvato 2006-6-2 33071 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 579 Comment
  RSA413538  Lupinus microcarpus var. densiflorus Anstruther Davidson 1892-05 s.n. Riverside Banning. Comment
  UCR227  Lupinus microcarpus var. densiflorus Frank C. Vasek 1958-4-26 s.n. Riverside Palomar Mtn. Region, Hwy '71' [79], east of Temecula, east end of [Temecula Creek] bridge at E end of cultivated valley [Pauba Valley] 366 Comment
  POM12772  Lupinus pallidus Philip A. Munz, D. D. Keck 1922-4-9 4845 Riverside Vicinity of Corn Springs, Chuckwalla Mtns. 671 Comment
  UCR117077  Lupinus sparsiflorus A. C. Sanders, Mitch Provance, T. B. Salvato 2001-4-6 23961 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon area west of Del Rey Rd., hills on both sides of gas pipeline route 390 Comment
  RSA86973  Lupinus sparsiflorus subsp. sparsiflorus F. W. Peirson 1921-3-19 7717 Riverside Whitewater Grade about 2 miles east of Banning Comment
  VVC230  Lupinus succulentus F. Zaebst 1959-3-29 s.n. Riverside 0.2 miles south of Murrietta Hot Springs Rd on W side of US 395 349 Comment
  POM2385  Lupinus truncatus M. French Gilman 1904-1 14 Riverside Banning. Comment
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Mar 13 2011
  POM320523  Lupinus truncatus Worthman 1968-5-16 182 Riverside 17.3 miles west of Murrieta 671 Comment
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Jun 16 2013
  RSA554282  Lupinus truncatus Scott D. White 1992-2-25 92 -8 Riverside Santa Rosa Plateau, between Sandia and De Luz Creeks, ca. 1.5 (air) mi. W of Sandia Canyon; 7 miles SW of Murrieta. 305 Comment
  RSA605684  Lupinus truncatus R. S. Woglum 1938-5-1 1611 Riverside Peninsular Ranges: San Jacinto Valley; Hemet. Comment
  UCR93022  Lupinus truncatus G. P. Schultz 1994-4-7 s.n. Riverside Box Springs Mtns, Big Springs Canyon and N on the crest to Two Trees Canyon (S side) Comment
  CAS-BOT-BC502082  Lycium andersonii A. C. Sanders; Jim Malusa 2015-3-9 41365 Riverside Sonoran (Colorado) Desert: Chocolate Mtns, along Gasline Rd at major wash crossing 1.9 mi S of Bradshaw Trail, US Navy Chocolate Mtns Aerial Gunnery Range 686 Comment
  RSA428814  Lycium andersonii Jack Rempel 1935-4-14 s.n. Riverside Pinto Basin, Mohave Desert. Comment
  RSA510020  Lycium andersonii B. Pitzer 1988-3-10 659 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
  UCR179764  Lycium andersonii R. E. Riefner Jr. 2006-5-23 06- 203 Riverside Temescal Canyon, near city of Corona, 0.25 mi. SE from Cajalco Rd. at Temescal Wash 254 Comment
  RSA80345  Lycium brevipes F. W. Peirson 1926-1-31 6493 Riverside Dos Palmas, Colorado Desert. Comment
  UC495290  Lycium cooperi C. L. Hitchcock 1932-4-8 12217 Riverside 1 mi w Cottonwood Comment
  UC884612  Lycium cooperi I. W. Clokey 1935-4-17 6880 Riverside Cottonwood Springs Comment
  SEINET6173188  Lycium cooperi I. W. Clokey 1935-4-17 6880 Riverside Cottonwood Springs. Comment
  RSA612131  Lythrum californicum Louis C. Wheeler 1932-7-9 936 Riverside Santa Ana River at Chino Creek. 152 Comment
  UCR101460  Lythrum californicum A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22238 Riverside San Bernardino Mtns., Morongo Indian Reservation, side canyon east of lower Millard Canyon 854 Comment
  RSA93354  Machaeranthera asteroides F. W. Peirson 1935-4-17 11471 Riverside Eastern part of Blythe, colorado Desert, Comment
  CAS-BOT-BC206265  Malacothamnus fasciculatus Louis C. Wheeler 1931-10-4 218 Riverside Hemet-Idyllwild Road, San Jacinto Mts. 853 Comment
  UCR21157  Malacothamnus fasciculatus Steve Boyd 1980-7-3 s.n. Riverside Perris Basin, Motte Reserve. Rocky hills 2.5 mi NW of Perris. Western edge of the reserve and 0.25 mi south of the NW corner of the reserve 518 Comment
  UCR256788  Malacothamnus fasciculatus T. B. Salvato, Matthew Malle 2013-5-20 7571 Riverside Perris-Aguanga Basin, Menifee, east of Railroad Canyon and west of Hyw I-215. Murrieta Road between Newport Road and La Piedra Road 454 Comment
  UCR58303  Malacothamnus fasciculatus George K. Helmkamp 1989-10-7 s.n. Riverside San Jacinto Mtns, N slope of Thomas Mtn, 1 mi. SW of Hwy 74 on Thomas Mtn Road 1500 Comment
  RSA0087584  Malacothamnus fasciculatus R. S. Woglum 1937-10-20 1192 Riverside Santa Rosa Mts. 1524 Comment
  UCR133704  Malacothamnus fasciculatus var. fasciculatus N. C. Cooper 1944-5-21 1279 Riverside Hemet 549 Comment
  SEINET9335970  Malacothrix californica Unknown 1976-5-3 Riverside Red Mountain Road. Comment
  RSA507478  Malacothrix clevelandii Kathy Harper 1988-5-14 s.n. Riverside San Jacinto Mountains, along Hwy 243, 1-2 mi. below Mt. Edna turnoff. Comment
  UC1979538  Malacothrix clevelandii Darin L. Banks, Peter Morrell 1995-5-4 310 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, N of the Wildhorse Trail, on metasedimentary hills N of Wildhorse Peak. Comment
  UCR34956  Malacothrix clevelandii L. B. Ziegler 1972-5-30 471 Riverside San Jacinto Mtns., alongside Hwy 74 1341 Comment
  CAS-BOT-BC347696  Malacothrix glabrata Paul F. Covel 1938-4-21 1185 Riverside Just east Banning Comment
  UC1922690  Malacothrix glabrata Scott D. White, Angelia Carey 2004-4-5 9999 Riverside SAN JACINTO MTN FOOTHILLS: North of Valle Vista. Indian Creek Watershed. Lake Fulmor 7.5' Quad. Comment
  UCD134425  Malacothrix glabrata C. L. Hitchcock 1966-3-21 24329 Riverside about 15 miles south of Rice, on dirt road to Blythe. Comment
  UC1130508  Malosma laurina A. Lewis Feb 1934 265 Riverside 3 mi. e. Auburndale; Corona Quad. 91 Comment
  UCD116864  Malosma laurina R. Tofsrud 1951-4-25 s.n. Riverside Corona to Elsinore. Comment
  POM293100  Malva sylvestris Lyman Benson 1946-4-15 12016 Riverside 6 miles SE of Redlands 610 Comment
  RSA162695  Malvella leprosa J. D. Olmsted 1959-9-23 1015 Riverside San Jacinto River crossing by Lakeview Rd. from US 395 NW of Lakeview Mts 427 Comment
  RSA708060  Marah macrocarpa Scott D. White, Angelia Carey 2004-4-16 10153 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent slopes. 549 Comment
  SBBG87937  Marah macrocarpa B. Pitzer, E. Misqez 1988-2-28 617 Riverside SW of Murrieta, Walker Basin, Avenida del Oro, 2 mi S of Rancho California Rd 426 Comment
  UC1537624  Marah macrocarpa Gordon H. True Jr. 1935-3-1 38 Riverside Gavilan Hills 548 Comment
  UCR188788  Marah macrocarpa Jim Andre 2006-4-26 7795 Riverside South Mojave Desert, Joshua Tree National Park, upper Long Canyon, canyon bottom 1056 Comment
  SD143891  Marina parryi G. K. Helmkamp, E. A. Helmkamp 1998-2-18 2694 Riverside Colorado Desert; Midland Road, 3.8 miles southeast of Midland, Little Maria Mountains. Comment
  UC73150  Marina parryi E. E. Schellenger 1904-12-4 95 Riverside Chuckawalla Bench Colorado Desert Comment
  UCR59713  Marina parryi A. C. Sanders 1989-9-19 9505 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, 1.75 km (airline) south of Tabaseca Tank, along the wash above 'Tabaseca Target 680 Comment
  UCSB22425  Marina parryi Myrick, Donald 1965-3-2 Riverside Desert near Midland, north of Blythe 91 Comment
  UCR107829  Marrubium vulgare D. L. Banks 1997-5-5 1987 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
  UCR155049  Marsilea vestita Jason L. Hlebakos 2005-5-18 699 Riverside Santa Rosa Plateau, Pool on E side of Mesa de Burro, above upper end of Miller Canyon 610 Comment
  CAS-BOT-BC348065  Matricaria discoidea Scott D. White 1996-4-14 3888 Riverside Perris Basin, W Riverside Co. Hemet: along Florida Ave. Comment
  UCR163219  Matricaria matricarioides T. B. Salvato, Kelly Volansky 2003-3-27 122 Riverside Santa Ana Mtns, foothills at edge of Temescal Valley, development called 'Trilogy at Glen Ivy,' between Bixby and Brown Canyons 396 Comment
  UCR282161  Matricaria occidentalis R. E. Riefner Jr. 2017-4-2 17- 139 Riverside Perris-Aguanga Basin, city of Hemet, along California Ave. near Stowe Road 468 Comment
  UCR182838  Medicago lupulina Mitch Provance 2003-4-18 6606 Riverside San Bernardino Valley, Riverside, Santa Ana River Wash, just under and NE of the Market St. Bridge 244 Comment
  RSA621898  Medicago polymorpha Steve Boyd, T. S. Ross, L. Arnseth 1989-3-18 2996 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  POM348038  Medicago polymorpha N. C. Cooper 1944-4-22 1129 Riverside Banning. 732 Comment
  SD161026  Melica frutescens Virginia Moran 2003-5-28 Riverside Perris-Aguanga Region, Wilson Valley Mitigation Bank, on Wilson Valley Road Comment
  RSA683856  Melica imperfecta Scott D. White, Michael Honer 2003-4-4 8943 Riverside Dissected bajada bench, below and east of Horsethief Canyon; immediately S of I-15 Freeway. 366 Comment
  SBBG53765  Melica imperfecta S. Boyd 1980-5-11 Riverside Harford Springs County Park, NW corner of the Gavilan Plateau; NE of trailer park, E of Gavilan Rd Comment
  UCR148483  Melilotus albus John F. Green, Chet McGaugh 2005-1-19 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, 1.5 mile transect along Coachella Canal right-of-way, between siphons 25 and 26, NE of Hunters Spring, near S base of Orocopia Mtns. 23 Comment
  CSUSB1117  Melilotus indicus Kheng Try Seng 1966-4-13 660413 7 Riverside Santa Ana Mountains Northeast slope of Santa Ana Mountain. End of Main Street, 4 miles from downtown Corona. 457 Comment
  UCR82224  Melilotus indicus J. M. Stewart 1994-5-2 853 Riverside Western Colorado Desert, Coachella Valley, Thermal. Tyler St. and Airport Blvd. Comment
  CLARK-A1528-5703  Menodora spinescens John C. Roos 1948-5-15 3860 Riverside Eagle Mountain Comment
  RSA735068  Mentha suaveolens Scott D. White, Angelia Carey 2004-6-4 10473 Riverside San Jacinto Mountain foothills: San Jacinto River wash and adjacent alluv. benches, near Indian Creek confluence. 503 Comment
  UCR17931  Mentzelia albicaulis A. C. Sanders 1976-4-20 00418 Riverside San Jacinto/Santa Rosa Mtns., 9.5 mi. SE of Anza in White Wash, a tributary of Coyote Canyon 976 Comment
  JEPS29275  Mentzelia desertorum Rimo Bacigalupi, L. Heckard and P. Hutchison 1962-3-21 8343 Riverside 2.3 mi below and sw Shavers (along Calif. Highway 195); Box Canyon Wash 243 Comment
  UC68744 Image available Mentzelia involucrata H. M. Hall 1905-4-21 5839 Riverside near Salton; Colorado Desert; near Salton, Colorado Desert, Riverside Co. -76 Comment
  UCR217792  Mentzelia involucrata Jim Andre, T. La Doux 2010-2-28 12551 Riverside Lower Colorado River Valley, along Hwy 95 c. 25 miles north of Blythe, on east side of Big Maria Mountains, under radio tower 83 Comment
  UCR244306  Mentzelia involucrata Jim Andre 2012-4-16 20886 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
  UCSB24938  Mentzelia involucrata Keefe, Joseph 1967-3-23 Riverside Whitewater Canyon Road, 1.9 miles north of U.S. Highway 99, east of Banning 609 Comment
  UCSB4219  Mentzelia involucrata Beeks, Richard 1952-4-4 Riverside 7 miles N of Mecca in Box Canyon Comment
  POM48607  Mentzelia laevicaulis Mary F. Spencer 1919-7-9 s.n. Riverside San Jacinto Mt. 549 Comment
  OBI12495  Mentzelia veatchiana Robert F. Hoover 1969-4-11 11212 Riverside Mouth of Morongo Valley cyn Comment
  RSA740070  Mentzelia veatchiana Scott D. White, Justin M. Wood 2008-6-16 12133 Riverside San Jacinto Mountains: Meadow at Quinn Flat. 1378 Comment
  UCD96999  Mesembryanthemum nodiflorum A. C. Sanders 2004-5-12 27856 Riverside Elsinore Basin Region: Alberhill Mountain, northwest foot near Lake St. at Alberhill. 377 Comment
  RSA593900  Microseris douglasii subsp. douglasii Steve Boyd, David E. Bramlet 1996-4-19 8607 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal 457 Comment
  CAS-BOT-BC322630  Microseris douglasii subsp. platycarpha D. Bramlet 1993-4-12 2318 Riverside The site is found 46m north of Cajalco Road and 762 m east of the intersection of La Sierra Ave. and Cajalco Road, northwest of the Siegal Ranch Road 426 Comment
  UCR135810  Microseris douglasii subsp. platycarpha A. C. Sanders, Guy Bruyea 2004-4-2 27428 Riverside Peninsular Range, Temescal Canyon, 'Serrano Highlands' project, between Glen Ivy Hot Springs and Arcilla, NE side of the I-15 Fwy, south of Clay Canyon Rd. 335 Comment
  RSA263715  Microseris douglasii subsp. tenella E. W. Lathrop 1969-5-9 7050 Riverside Mail Divide Truck. Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  UCR91288  Microseris heterocarpa Scott D. White, M. Jacobsmeyer 1996-4-20 3975 Riverside Perris Basin, Near Perris Airport, c. 100 m north of Case Road, just west of the I-215 Fwy 433 Comment
  RSA528103  Microseris lindleyi Steve Myers 1991-4-15 91 -13 Riverside City of Banning, W of fields Road, N of Interstate 10 & S o the Morongo Indian Reservation. 671 Comment
  UCR41356  Microseris lindleyi N. M. Fellows, A. C. Sanders 1985-4-9 130 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
  UCR199565  Mimulus aurantiacus Scott D. White 2004-4-26 10264 Riverside San Jacinto Mountain Foothills, Soboba Indian Reservation, Indian Creek Watershed 671 Comment
  UCR251870  Mimulus aurantiacus M. A. Voeltz 2014-5-25 s.n. Riverside Peninsular Range; Santa Ana Mtns., Tin Mine Canyon near Corona, Cleveland National Forest, Trabuco Ranger District 403 Comment
  JEPS87307  Mimulus aurantiacus var. pubescens David M. Thompson 1992-5-18 1069 Riverside 3.3 mi n Lakeview (at Ramona Expressway) (along Davis Road, 3.8 rd mi s of Hwy 60) 485 Comment
  RSA442666  Mimulus aurantiacus var. pubescens N. C. Cooper 1944-5-6 1205 Riverside Banning. 701 Comment
  UC729965  Mimulus aurantiacus var. pubescens Carl B. Wolf 1932-5-24 3657 Riverside 1 mi above Fish Hatchery (n base of mts.); San Jacinto Mts., Snow Creek Canyon 792 Comment
  UCR50392  Mimulus aurantiacus var. puniceus L. F. LaPre, Jack Easton 1988-1-12 s.n. Riverside Santa Rosa Plateau, Mesa de la Punta, Santa Rosa Springs Ranch 610 Comment
  UCR90745  Mimulus aurantiacus var. puniceus Scott D. White 1995-4-5 2744 Riverside Perris Valley, Lakeview Mountains: directly south of Rosary Ave. at ' T ' intersection with Central Ave., in town of Nuevo 488 Comment
  RSA178795  Mimulus bigelovii var. bigelovii Marcus E. Jones 1930-4-1 s.n. Riverside Shaver's Well Comment
  RSA420949  Mimulus bigelovii var. bigelovii Howard Mullins 1931-4-26 s.n. Riverside Mecca Comment
  UC1080454  Mimulus bigelovii var. bigelovii P. C. Everett and E. K. Balls 1958-4-29 23017 Riverside 1 mi w Cactus City (U.S. Hwy. 60/70, Indio to Blythe) 548 Comment
  UCR50882  Mimulus bigelovii var. bigelovii A. C. Sanders 1988-5-11 7803 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal, east of the gasline road from Niland 549 Comment
  CSUSB885  Mimulus brevipes Charles Herrick 1974-5-11 Riverside 1/4 mile southeast of Calimesa turnoff of freeway 10. 716 Comment
  RSA701500  Mimulus brevipes M. Wall, Susan Jett, Perez, Garcia 1994-6-1 53 Riverside S of Hemet 1.75 mi W of Benjie Lane off Hwy R-3. Comment
  SEINET3079369 Image available Mimulus brevipes Howard Scott Gentry 1947-4-20 7630 Riverside Gentry Farm, 3 miles NE of Murrieta. 396 Comment
  SFV17401  Mimulus brevipes M. S. Valenzuela, P. Wilson 1998-6-2 67 Riverside Highway 74 near mile marker 54. Found along a creek. Comment
  UCR120826  Mimulus brevipes Ian G. Gillespie 2000-4-27 28 Riverside Temescal Valley, 0.9 mi SE of Indian Truck Trail and 30 m south of DePalma Road 412 Comment
  LA92017  Mimulus clevelandii Peter H. Raven; 1962-5-18 17759 Riverside Main Divide Truck Trail 2.9 mi. S of Santiago Peak 1234 Comment
  UCR26963  Mimulus clevelandii E. W. Lathrop 1966-5-29 6390 Riverside Peinsular Range; Santa Ana Mtns, Cleveland National Forest, Main Divide Truck Trail between El Carriso and Santiago Peak 1223 Comment
  RSA523547  Mimulus diffusus Steve Boyd, Tim S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4007 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  RSA606285  Mimulus diffusus Jon E. Keeley 1994-4-22 25326 Riverside Shipley Reserve 670 Comment
  LA209478  Mimulus fremontii Norman C. Cooper; 1944-6-17 1417 Riverside San Jacinto Mountains, above Banning 1219 Comment
  RSA496468  Mimulus fremontii var. fremontii Steve Boyd, Tim S. Ross, L. Arnseth 1989-3-31 3084 Riverside Vail Lake area, S of Hwy 79, Kolb Creek drainage, W of Woodchuck Rd. Comment
  LA209398  Mimulus guttatus Norman C. Cooper; 1944-5-6 1211 Riverside San Bernardino Mountains, Whitewater Canyon 457 Comment
  UCR12595  Mimulus guttatus Bill Schultz 1972-4-30 720430- 7 Riverside Santa Ana River bottom, 200 yards west of where power lines make turn where palm trees are west of dump 2 mi south of Mt. Rubidoux 305 Comment
  UCR131832  Mimulus guttatus Jennie Phui 1998-5-30 034 Riverside San Bernardino Mtns./San Gorgonio Pass, Morongo Indian Reservation, eastern fork of Lion Canyon, 3 miles up Lion Canyon road north of I-10 Fwy 600 Comment
  UC980569  Mimulus nasutus H. K. Wagnon 1944-3-12 340 Riverside between Palm Springs and Cathedral City (w fork of stream); Eagle Canyon stream Comment
  JEPS3998  Mimulus parishii Marjorie D. Clary 1932-6-5 1634 Riverside Eagle Canyon, w side of Colorado Desert Eagle Canyon; Colorado Desert 182 Comment
  JOTR34166  Mimulus parishii Harding, Mitzi, T. Herskovits and D. Oquendo 2011-5-5 123 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Pushawalla Canyon; Pinyon Well; Riparian area near small series of active springs and seeps (Stop 2) 1182 Comment
  UCR256786  Mimulus pilosus T. B. Salvato, Matthew Malle 2013-5-20 7573 Riverside Perris-Aguanga Basin, Menifee, east of Railroad Canyon and west of Hyw I-215. Murrieta Road between Newport Road and La Piedra Road 454 Comment
  RSA583751  Minuartia douglasii Steve Boyd 1995-4-24 8480 Riverside Palomar Range, Agua Tibia Wilderness Area, Arroyo Seco drainage on northern flank of Agua Tibia Mountain at the north base of Wildhorse Peak, along the Wildhorse Trail near its junction with the Dripping Springs Trail. 610 Comment
  SD119893  Mirabilis laevis var. crassifolia Louis B. Ziegler 1978-3-28 580 Riverside San Jacinto Valley. 456 Comment
  CAS-BOT-BC434818  Mirabilis laevis var. retrorsa S. B. Parish 1916-5-13 10847 Riverside Cottonwood Spr., Colorado Desert 792 Comment
  CAS-BOT-BC434830  Mirabilis laevis var. retrorsa John Thomas Howell 1928-3-11 3416 Riverside Morongo Canon [Canyon], n. Colorado Desert 609 Comment
  PASA595  Mirabilis laevis var. retrorsa 1929-3-3 Riverside Hidden Springs, Colorado desert Comment
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Jun 24 2016
  UC101227  Mirabilis laevis var. villosa S. B. and W. F. Parish Apr 1881 659 Riverside Cabezon Comment
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Mar 21 2011
  SBBG14041  Mirabilis multiflora E. R. Blakley 1961-9-12 4716 Riverside Pinyon Flat, Palms to Pines Hwy 1219 Comment
  RSA19185  Mirabilis multiflora var. pubescens R. S. Woglum 1937-4-24 296 Riverside San Jacinto Mountains, on Palms to Pines Road, about 2 mi above junction with Palm Springs Highway Comment
  CAS-BOT-BC229624  Mirabilis tenuiloba S. B. Parish 1907-4-18 6071 Riverside West Canon [Canyon], W edge of the Colorado desert 200 Comment
  UCR277701  Modiola caroliniana Mitch Provance 2013-4-16 413- 22 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  RSA516903  Mohavea confertiflora Steve D. Boyd, Orlando Mistretta 1986-3-13 1424 Riverside Palen Mountains; NE of Desert Center, jct. of Parker Dam Rd. and Palen Rd. (road going through pas between Palen and Granite Ranges). 244 Comment
  SD21519  Mohavea confertiflora Ethel B. Higgins 1938-5-21 5761 Riverside Shaver's Summit Comment
  CAS-BOT-BC220028  Monardella breweri subsp. lanceolata Winifern W. Swarth 1914-9-10 s.n. Riverside Strawberry Valley, San Jacinto Mts. 1828 Comment
  RSA699167  Monardella lanceolata J. R. Bruff 1934-6-19 544 Riverside San Jacinto Mountains Comment
  POM187414  Monardella lanceolata var. lanceolata L. Crutcher 1933-8-1 8 Riverside Camp Tahquitz, San Jacinto Mtns. Comment
  UC63743  Monardella macrantha subsp. hallii H. M. Hall 1897-6-19 669 Riverside San Jacinto River San Jacinto Mountains 1341 Comment
  UC1499936  Monardella nana E. McClintock, H. Lewis 1941-6-29 80 Riverside Santa Rosa Mt. road, 5 1/2 miles beyond canyon where stream crosses road Comment
  UCR221471  Monardella nana subsp. arida Elizabeth McClintock 1941-7-21 126 Riverside Peninsular Range; San Jacinto Mtns., trail to Hidden Lake, occuring for some distance along the trail, below the point at which the switchbacks and Salvia pachyphylla begin 2439 Comment
  POM21133  Monardella nana subsp. tenuiflora Fordyce Grinnell Jr. 1908-07 s.n. Riverside Tahquitz Valley 2439 Comment
  RSA750286  Monardella nana subsp. tenuiflora Elizabeth McClintock, D. Weiner 1941-7-11 94 Riverside Banning-Idyllwild road. 3/4 mile beyond Stone Creek. Comment
  RSA750288  Monardella nana subsp. tenuiflora Elizabeth McClintock, D. Weiner 1941-7-11 96 Riverside Banning-Idyllwild road. 2 miles beyond Stone Creek. Comment
  RSA750307  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-21 123 Riverside San Jacinto Mountains. Trail to Hidden Lake. Comment
  UCR221475  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-15 115 A Riverside Peninsular Range; San Jacinto Mtns., on slope south of Strawberry Creek, and west of Domengonio [Domenigoni] Flats [vicinity of West Ridge, near Camp Emerson & USC Idyllwild campus] 1646 Comment
  SEINET10829397  Monardella nana subsp. tenuiflora A. Graff 1993-6-24 Graff 44 Riverside San Bernadino National Forest, San Jacinto Mtns. 1.45 miles in on Black Mtn. Rd. (USNFS Rd. 4S01) from Hwy. 243, on both sides of the road, though most extensively on the right. Before intersection of 4S01 and 4S02. T4S,R2E,S23. Locally abundant in semi-shade, with Quercus kelloggi, Q. chrysolepis, Picea sp., Pinus coulteri, P. ponderosa, Arctostaphylos pringlei, Eriogonum confertiflorum, Lupinus sp., Lotus scoparius. Need USNFS permission to collect. Comment
  CAS-BOT-BC505216  Monolopia lanceolata Cindy Daverin 2015-3-11 s.n. Riverside Gavilan Hills, El Sobrante Landfill mitigation property/Lake Mathews-Estalle Mountain Reserve, S of Lake Mathews and of Cajalco Rd., 1.3 km WNW (288 deg. ) of Monument Peak 443 Comment
  UC75893  Monolopia lanceolata Miss M. A. King 1893-1 Riverside Menifee Comment
  UCR78333  Monolopia lanceolata D. E. Bramlet 1993-4-13 2325 Riverside Adjacent to (north of) the existing dirt access road, 610 m north of Cajalco Rd, in the 'Cajalco Bend' area, 1.1 km west of Lake Mathews Drive 433 Comment
  CAS-BOT-BC349705  Monoptilon bellidiforme Ella Dales Cantelow 1941-3-8 3584 Riverside S.E. of Palm Springs Comment
  JEPS24431  Monoptilon bellioides Peter M. Ray 1949-3-6 1329 Riverside near 1000 Palms; Coachella Valley, Willis Palms Comment
  RSA4890  Monoptilon bellioides C. B. Wolf 1932-4-27 3006 Riverside Colorado Desert, 17 miles E of Mecca on the Blythe road. 152 Comment
  RSA730041  Monoptilon bellioides R. F. Thorne 1973-3-30 42677 Riverside Morongo Valley Canyon: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, Mission Creek. 488 Comment
  SEINET2053859 Image available Monoptilon bellioides Norman C. Cooper 1949-4-8 3236 Riverside Mecca Pass east of Indio. 609 Comment
  UCD134637  Monoptilon bellioides Geoffrey Levin 1976-3-27 692 Riverside Chino Canyon, west of Palm Springs. Alluvial fan of San Jacinto Mts. Salton Sea Basin drainage area. Colorado Desert. 396 Comment
  UCR74395  Monoptilon bellioides Theo Glenn 1991-5-2 91- 12 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  RSA543620  Montia fontana Steve Boyd 1991-5-7 6155 Riverside Santa Ana Mountains, SE and E side of Elsinore Peak. 1006 Comment
  POM263464  Muhlenbergia californica J. C. Roos 1937-8-23 467 Riverside Snow Creek, north base of Mt. San Jacinto. Comment
  RSA608479  Muhlenbergia filiformis L. C. Wheeler 1961-6-24 7908 Riverside San Jacinto Mountains: Fulmor Lake. Comment
  UCD86592  Muhlenbergia filiformis A. A. Beetle 1946-6-10 4398 Riverside In San Jacinto Mountains, near Idylewilde. 1219 Comment
  CAS-BOT-BC275300  Muhlenbergia microsperma Peter H. Raven 1958-2-15 11557 Riverside Corn Springs, Chuckwalla Mountains Comment
  POM14440  Muhlenbergia microsperma P. A. Munz, Johnston 1922-5-21 5550 Riverside 4 mi. N.E. of San Jacinto 457 Comment
  RSA559443  Muhlenbergia microsperma Steve Boyd 1992-4-15 6869 Riverside Santa Ana Mtns, San Mateo Cyn Wilderness Area. Bluewater Cyn along Bluewater Tr. dowstream to the confluence with San Mateo Creek. 335 Comment
  UC39892  Muhlenbergia richardsonis H. M. Hall July 1901 2545 Riverside West Fork Snow Creek San Jacinto Mountains 1524 Comment
  UC39893  Muhlenbergia richardsonis H. M. Hall Jul 1 1901-Aug 1 1901 2477 Riverside Tamarack Valley San Jacinto Mountains 2804 Comment
  CAS-BOT-BC274911  Muhlenbergia rigens W. R. Dudley 1903-12-25 s.n. Riverside Mouth of Tahquitz Creek near Palm Springs Comment
  SEINET3887720  Muilla clevelandii N. Duane Atwood, L. Stritch 1993-4-2 17901 Riverside Santa Rosa Plateau TNC Preserva and adjacent to BLM administrated lands.; 0 671 Comment
  RSA336036  Muilla maritima Robert F. Thorne, A. Shmida, R. Whittaker 1978-4-23 52067 Riverside Palms to Pines Highway: Along highway, Santa Rosa Mountains. Comment
  UCR137039  Muilla maritima A. C. Sanders 2004-5-5 27756 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
  UCR226087  Muilla maritima A. C. Sanders, T. B. Salvato 2011-4-1 38958 Riverside Peninsular Range, Lake Elsinore, off Baker St. NW of intersection with Bromley Ave., north of second house from intersection, 0.55 km NW of Hwy 74 404 Comment
  UCR42546  Muilla maritima B. G. Pitzer 1986-4-26 0182 Riverside San Bernardino Mtns., Whitewater Canyon, c. 4.5 mi. north of Hwy I-10 on Whitewater Canyon Road 734 Comment
  UCR112324  Myosurus minimus A. C. Sanders, K. C. Rose 1998-5-21 21861 Riverside Hemet, Alkaline flats west of town, east of the canal, south of Hwy 74 (Florida) and c. 1/4 mi. west of Warren Rd. 457 Comment
  UCR113629  Myosurus minimus June Latting 1978-6-4 s.n. Riverside Santa Ana Mtns., Santa Rosa Plateau, Mesa de Colorado 640 Comment
  UC217896  Nama P. A. Munz, D. Keck 1922-4-8 4740 Riverside Mecca , Mecca (Colorado Desert) -30 Comment
  UCR241426  Nama demissa Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 24 Riverside Sonoran (Colorado) Desert, near Joshua Tree National Park, Coachella Valley, Dillon Rd. 4.21 miles north of Hwy 10 in Indio 91 Comment
  UCR279580  Nama demissa A. C. Sanders, Jim Malusa 2017-3-28 43151 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
  UCSB5309  Nama demissa Beeks, Richard 1952-4-5 Riverside 12 miles E. of Shavers Summit Comment
  POM98949  Nama demissa E. C. Jaeger 1926-3-24 s.n. Riverside Eagle Mountains. Comment
  RSA700860  Nassella cernua Michael Wall 1996-5-8 148 Riverside Van Buren Blvd west of March Air Force Base, 1.5 mi west of Fwy 215, north side of road south side of Salix-filled seasonal drainage. Comment
  UC149798  Nassella cernua H. M. Hall April 1902 2921 Riverside vicinity of Winchester 304 Comment
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Mar 20 2011
  CAS-BOT-BC259972  Nassella lepida H. Haid 1968-5-19 s.n. Riverside San Jacinto Mountains: Bautista Canyon, above confluence with Horse Creek 915 Comment
  SBBG89095  Nassella pulchra B. Pitzer, K. Kirtland 1986-3-6 200 Riverside N side of Pauba Valley, 1 mi S of Buck Mesa on the E side of Butterfield Stage Rd 457 Comment
  RSA431575  Nasturtium officinale Dr H. de Forest 1933-4-16 17598 Riverside Chino Canyon, Colorado Desert, E of Coachella Valley Comment
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Mar 28 2011
  RSA192023  Navarretia atractyloides E. W. Lathrop 1960-6-6 4836 Riverside 14 miles west of Murrieta. Comment
  UCR139620  Navarretia atractyloides A. C. Sanders 2004-7-1 28388 Riverside Perris-Aguanga Surface/Menifee Valley Region, Paloma Valley, large rocky hill (1762 ft.) 1 mi. east of Murrieta Rd. and 1 mi. N of Bundy Canyon Rd., c. 5 miles due south of Sun City 488 Comment
  UCR233161A  Nemacladus Jim Andre, Glenn L. Clifton 2011-2-22 17450 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  JEPS22313  Nemacladus glanduliferus Peter H. Raven 1958-5-5 12905 Riverside Salton View; Joshua Tree National Monument 1584 Comment
  CLARK-A1528-2374  Nemacladus longiflorus var. breviflorus John C. Roos 1937-4-18 1795 Riverside Snow Creek Comment
  RSA525331  Nemacladus ramosissimus Steve Boyd, L. Arnseth, M. Skinner 1990-4-28 4462 -a Riverside Vail Lake area, Hwy R3 (Sage rd) at junction with Debby Road. just S of Sage. Comment
  RSA674707  Nemacladus ramosissimus Scott D. White 2000-5-1 7749 Riverside Corona: Western foothills of Santa Ana Mountains near Bedford Canyon. 351 Comment
  NY547192  Nemacladus rubescens var. tenuis H. M. Hall 1905-4-17 5819 Riverside Eastern base of Indio Mt., Colorado Desert 150 Comment
  UC29179  Nemacladus sigmoideus W. G. Wright 1889-1 1766 Riverside Colorado Desert Comment
  RSA591746B  Nemacladus tenuis var. tenuis J. C. Roos 1966-3-26 s.n. Riverside 2 mi S.E. of Desert Center. Comment
  UCR176366  Nemacladus tenuis var. tenuis A. C. Sanders, K. C. Rose 1995-4-27 16731 Riverside Sonoran (Colorado) Desert, Coachella Valley, foot of the Little San Bernardino Mtns., canyon east of Fan Hill, just outside Joshua Tree Nat. Park 549 Comment
  UCSB46708  Nemophila menziesii Reimer, Neil 1977-4-15 Riverside 1 mile S. Cajalco Rd. on Santa Rosa Rd. Comment
  CSUSB122  Nemophila menziesii var. menziesii Kenneth Hibberd 1966-2-20 Riverside Arlington Ave., 1 mile east of Victoria Street, 100 yards south of road. City of Riverside. 304 Comment
  RSA413247  Nicotiana glauca James C. Dice, J. DeWald 1987-10-5 734 Riverside Santa Margarita River, near aqueduc crossing. 247 Comment
  POM15016  Nicotiana obtusifolia Mary F. Spencer 1922-3-23 s.n. Riverside Palm Springs, Colorado Desert 183 Comment
  SEINET3077686 Image available Nicotiana trigonophylla Unknown 1965-4-15 Riverside 10 miles west of Indio on Hwy 60. 61 Comment
  SEINET3288972 Image available Nolina parryi Loraine Yeatts, Dick Yeatts 2002-4-15 4767 Riverside Comment
  RSA0048402  Nolina parryi subsp. wolfii James R. Shevock 1971-5-8 s.n. Riverside Near Salton View, Joshua Tree National Monument. 1584 Comment
  UC20447  Oenothera californica subsp. californica H. M. Hall June 1901 2143 Riverside along borders of Colorado Desert eastern base of San Jacinto Mountains Comment
  RSA778490  Oenothera deltoides Duncan S. Bell 2009-3-8 57 Riverside Arica Mountains: the north tip of the mountain range approximately 3 air miles northwest of Priest Well, or approximately 5.5 air miles southwest of the ghost town of Rice. 404 Comment
  POM355308  Oenothera deltoides subsp. deltoides Douglas Bothwell 1934-3-31 s.n. Riverside Valle Vista, Hemet. Base of San Jacinto Mtns Comment
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Mar 27 2011
  POM226795  Oenothera elata subsp. hirsutissima P. A. Munz 1934-9-30 13238 Riverside Foot of Mt. Roubidoux, Riverside. Comment
  UCR94247  Olea europaea Scott D. White 1996-4-14 3923 Riverside Perris Basin/San Jacinto Mtns., E of Hemet: San Jacinto River Wash near Valle Vista, north of Hwy 74, c. 1.7 mi west of USFS Cranston Fire Station 549 Comment
  UCR240203  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
  SEINET7103030 Image available Opuntia Bruce D. Parfitt, Rita Anthony, Andy Sanders 1986-4-21 3516 Riverside San Bernardino National Forest, Pinyon Flat, 0.1 mile S of Hwy 74, SSW of Palm Desert. 1250 Comment
  UCR19729  Opuntia John C. Roos, L. Roos 1952-10-18 5905 Riverside Little San Bernardino Mtns, Hidden Valley campground 1220 Comment
  UCSB17810  Opuntia basilaris Gerhart, Janet 1963-4-6 Riverside 5.2 miles south of U.S. Highway 60-70 on mine road; 11.5 miles east of turnoff to Joshua Tree National Monument 396 Comment
  UCR257140  Opuntia californica A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-9 24940 Riverside The Badlands, hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 671 Comment
  RSA6611  Opuntia parryi B. D. Stark 1933-2-19 4529 Riverside 2.5 miles east of Nuevo. [county not specified on label] Comment
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Feb 19 2007
  SBBG87607  Opuntia phaeacantha A. C. Sanders, B. Parfitt, R. Anthony 1986-4-21 6464 Riverside rocky N-facing slope near the mouth of Hamilton Crk Cyn, 2.6 mi E of Anza Post Office on Hwy 371 Comment
  RSA388331  Opuntia vaseyi Steve Boyd 1986-5-7 1833 Riverside Temescal Canyon: Edge of Terrace escarpment between Horsethief wash and Indian Truck Trail, south of I-15. Comment
  UC218173  Oreostemma alpigenum var. andersonii P. A. Munz 1922-9-5 6364 Riverside meadow n of Tahquitz Valley; San Jacinto Mts. 2225 Comment
  RSA0066570  Orobanche cooperi subsp. cooperi M. Pijoan 1927-4-9 s.n. Riverside Deep Canyon east of Palm Springs. Comment
  RSA0077923  Orobanche fasciculata Ivan M. Johnston 1917-4-4 s.n. Riverside Andreas Canyon. 243 Comment
  CLARK-A1528-4772  Oryzopsis hymenoides Alfred R. Roos 1937-4-18 2397 Riverside Snow Creek Comment
  RSA583617  Osmorhiza brachypoda Steve Boyd, Darin Banks 1995-3-30 8412 Riverside Agua Tibia Wilderness Area, northern flank of Agua Tibia Mountain at the western edge of the Dripping Springs Alcove in tributary of Kolb Creek just east of the old Woodchuck Truck Trail road grade, just south of the Wilderness boundary. 640 Comment
  UCR4126  Oxalis pes-caprae Ronald M. Cope 1965-3-28 s.n. Riverside Upper Santa Ana River/San Bernardino Valley Region, Riverside, small canyon on west side of Canyon Crest Drive, about 2 mi south of Fire Prevention Lab 274 Comment
  POM12814  Oxytheca emarginata P. A. Munz 1922-6-24 5793 Riverside Pipe Creek, Hemet Valley. 1433 Comment
  RSA64888  Oxytheca emarginata R. S. Woglum 1937-5-24 12082 Riverside Santa Rosa Indian Reservation. 1220 Comment
  POM12807  Oxytheca trilobata P. A. Munz 1922-6-25 5818 Riverside Vandeventer Flat. 1707 Comment
  UC572580  Oxytheca trilobata H. S. Yates 1936-8-29 6375 Riverside 1 mi ne Keen Camp; San Jacinto Quad. 1615 Comment
  CAS-BOT-BC327930  Palafoxia arida Ira L. Wiggins; Dorothy B. Wiggins 1966-2-22 20460 Riverside Along Hwy 60, 1.5 mi SE of Garnet Hill. Comment
  POM363750  Palafoxia arida var. arida Ora M. Clark 1929-3-16 1708 Riverside N. of White Water. Comment
  UCR196382  Palafoxia arida var. arida Naomi Fraga, Sarah J. De Groot, Lisa Rojas, Pesach Lubinsky 2005-2-10 1419 Riverside Northeastern Colorado Desert, along Palen Pass Road, near Hwy 177 170 Comment
  UCR279547  Palafoxia arida var. arida A. C. Sanders, Jim Malusa 2017-3-27 43132 Riverside Sonoran (Colorado) Desert, NW edge of Chocolate Mountains, lower Salt Creek on the illegal OHV road from the Coachella Canal to the trestle, inside Navy Aerial Gunnery Range 44 Comment
  UCR17636  Panicum alatum var. minus Hap Ritter, Paul Mack 1976-10-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, sand dunes southeast of Hopkins Well and west of Wiley's Well Road 152 Comment
  RSA575932  Panicum capillare Steve Boyd 1994-10-14 8393 Riverside Southern Santa Ana Mts., San Mateo Canyon Wilderness Area of the Cleveland Nat'l Forest. San Mateo Canyon, sandy benches in canyon bottoms at the confluence with Bluewater Canyon. 329 Comment
  CAS-BOT-BC350983  Panicum hirticaule Duncan S. Bell; John Anderson; Kim Clark; Debbie George; Jim George; A. F. Howland 2013-9-28 6018 Riverside Chuckwalla Valley; approx. 22.25 air miles W of Blythe, S side of Ford Dry Lake, about 0.5 air mile SE of Hopkins Well 107 Comment
  SEINET10788752  Panicum urvilleanum Sarah E. Youngstrom, J. Travis Columbus 2007-5-23 Youngstrom 2 Riverside S of Whitewater, Northern San Jacinto Mountains 100-200 m S of Hwy 111, on NE aspect, steep slope sand deposits on base of mountains. 311 Comment
  UCR177118  Papaver californicum Bill Wagner 1994-5-11 s.n. Riverside Black Mountain, c. 4 miles NNE of Lake Skinner 915 Comment
  RSA92743  Papaver californicum J. C. Roos 1952-5-19 5692 Riverside On hills north of Moreno. Comment
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May 20 2011
  SEINET273060 Image available Parietaria hespera A. C. Sanders 1997-3-26 20104 Riverside Lake Skinner area;along foot trail at W base of Tucalota Hills. UTM 10km cell: MH-9E 1N. Skinner Reser. 518 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
  UC1929823  Parietaria hespera var. hespera Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10475 Riverside Peninsular Ranges, San Jacinto Mountains / Colorado Desert; 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
  GMDRC5514  Parkinsonia florida J. Andre 2012-3-19 21342 Riverside Chuckwalla Valley: along unnamed dirt road 0.3 mi. N. of Hwy 177, 5.7 mi. NE of Jct with I-10 freeway 157 Comment
  UCR244308  Parkinsonia florida Jim Andre 2012-4-15 20852 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
  RSA471719  Pectis papposa J. S. Stubblefield 1934-9-12 s.n. Riverside Between Desert Center & Blythe. 106 Comment
  UCR182320  Pectocarya linearis Mitch Provance 2003-4-18 6602 Riverside San Bernardino Valley, Riverside, Santa Ana River Wash, just under and NE of the Market St. Bridge 244 Comment
  UCR241691  Pectocarya linearis T. B. Salvato 2013-3-22 7401 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
  CLARK-A1528-2248  Pectocarya linearis subsp. ferocula John C. Roos 1937-3-24 1338 Riverside Pigeon Pass Comment
  RSA522750  Pectocarya linearis subsp. ferocula Steve Boyd, Tim Ross, L. Arnseth 1990-3-29 3857 Riverside Vail Lake area, cinder cone ridge at N side of mouth of Temecula Creek Canyon and adjacent benches on S Flank of Big Oak Mountain. 396 Comment
  UCR162763  Pectocarya penicillata S. J. Myers, John F. Green 2003-4-4 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  UCR98085  Pectocarya peninsularis A. C. Sanders, Pam MacKay, Tim Thomas, G. K. Helmkamp 1997-2-8 19679 Riverside Colorado Desert/San Jacinto Mtns:, Palm Springs area, Tahquitz Debris Basin at mouth of Tahquitz Canyon 183 Comment
  SEINET7063462  Pectocarya platycarpa A. G. Vestal 1947-3-31 s.n. Riverside About 2.3 miles north of Lake Elsinore off present I 15. UTM Zone 11, 467263mE, 3929340mN. (WGS84/NAD83). 396 Comment
  UCR138578  Pectocarya platycarpa Steve Boyd, Orlando Mistretta 1986-3-13 1436 Riverside Sonoran (Colorado) Desert, Palen Mtns: NE of Desert Center, junction of Parker Dam Road and 'Palen Road' (road going through pass between Palen and Granite Ranges) 366 Comment
  SD143996  Pectocarya recurvata A. C. Sanders, P. MacKay, T. Thomas, G. Helmkamp 1997-2-8 19678 Riverside Colorado Desert/San Jacinto Mtns.: Palm Springs area, Tahquitz Debris Basin at mouth of Tahquitz Canyon. 182 Comment
  UCR218471  Pectocarya recurvata Jim Andre, T. La Doux 2009-3-10 11254 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
  UCR84837  Pectocarya recurvata A. C. Sanders, K. C. Rose, D. Woodard 1995-3-22 16208 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
  RSA543607  Pectocarya setosa Steve Boyd 1991-5-7 6169 Riverside Santa Ana Mountains, SE and E side of Elsinore Peak. 1006 Comment
  UCR25157  Pelargonium X hortorum Peggy Merritt 1972-5-5 720505 Riverside Riverside, lot on NE corner of Park and 7th streets 271 Comment
  UCR261101  Pellaea andromedifolia Joseph Cahill 2011-1-29 111- 18 Riverside San Bernardino Mountains/Sonoran Desert, Whitewater Canyon Road, c. 2.2 miles north of Hwy 10 518 Comment
  IRVC3148  Pellaea mucronata Steve Gilbert 1965-4-23 HS 589 Riverside SE of Elsinore, Hwy 74. Peninsular Ranges Comment
  UCR91428  Pellaea mucronata Scott D. White 1995-3-30 2651 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
  SEINET10568080  Pellaea mucronata David B. Dunn 1941-1-12 Dunn 675 Riverside Palms to Pines Hwy; opposite the Hermit Ranger Station. Comment
  SBBG56255  Pellaea mucronata var. californica R. Hoffmann 1929-9-6 Riverside San Jacinto Mtns 2286 Comment
  UC812405  Pellaea mucronata var. mucronata C. L. Hitchcock 1940-4-12 6043 Riverside 8 mi nw of Elsinore 457 Comment
  HSC34761  Pennisetum villosum R. E. Cooksey Mar 1974 200 Riverside Chino Canyon below Palm Springs Tramway; San Jacinto Mtns. 381 Comment
  SD28111  Penstemon bridgesii Carl B. Wolf 1932-8-4 3908 Riverside San Jacinto Mts. Point View, near Idyllwild 1646 Comment
  CAS-BOT-BC265285  Penstemon clevelandii subsp. connatus Peter H. Raven 1958-5-6 12925 Riverside Along State Highway 74, 15.6 miles SW of Palm Desert Comment
  CAS-BOT-BC265294  Penstemon clevelandii subsp. connatus Edmund C. Jaeger 1939-5-4 s.n. Riverside Pinon Alta Flats, Santa Rosa Mountains 1219 Comment
  UCR23082  Penstemon heterophyllus W. W. Mayhew, B. A. Carlson 1981-6-6 s.n. Riverside San Jacinto Mtns, Valley Hi County Park off Hwy 243 1220 Comment
  SD245487  Penstemon heterophyllus var. australis Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49543 Riverside Santa Ana Mountains: along Ortega Highway (74), perhaps 1/4 mile west of El Cariso. Comment
  RSA401811  Penstemon spectabilis Martha Hilend 1928-4-8 170 Riverside Lake Elsinore, about 3 miles west of lake. Comment
  RSA559335  Penstemon spectabilis Steve D. Boyd, Tim S. Ross 1992-5-15 7407 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Major lateral drainage north of Bear Canyon, vicinity of the junction of Tenaja and Morgan Trails, west of Round Potrero. 671 Comment
  RSA96902  Penstemon spectabilis R. M. Straw 1953-6-24 482 Riverside 8 mi. S of Banning on Idyllwild Rd. 1220 Comment
  NY661194  Penstemon spectabilis var. spectabilis F. W. Pennell 1940-4-28 25279 Riverside Route 74, 7-8 miles east of Hemet 548.6 Comment
  GMDRC6551  Penstemon spectabilis var. subviscosus J. M. Andre 2012-6-15 30503 Riverside San Jacinto Mountains: along Hwy 243 at Mt Edna Rd, approx. 1 mi. north of McMullen Flat, 5.9 mi. south of Interstate 10 at Banning; SB Natl. Forest 1172 Comment
  UC63193  Pentachaeta aurea H. M. Hall June, 1901 Riverside Chalk Hill San Jacinto Mountains 1524 Comment
  JOTR33759  Pentagramma triangularis subsp. maxonii La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2757 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Gneiss outcrop on edge of large sandy wash in wide canyon that feeds southwest into Wilson Canyon (Stop 6) Comment
  SEINET9259737 Image available Pentagramma triangularis subsp. triangularis George K. Helmkamp, Amy Barnes 2013-1 22311 Riverside Sierra Nevada Mountains Foothills: Utica Powerhouse Road (beside Angel's Creek), 0.6 mile northeast of its junction with CA-4 (Murphys 7.5 Q) 974 Comment
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Apr 12 2018
  UCR216201  Peritoma arborea Tasha La Doux, Jim Andre 2009-2-28 350 Riverside Sonoran (Colorado) Desert, Joshua Tree National Park, SE Little San Bernardino Mountains, along Berdoo Canyon Rd (dirt), c. 0.8 mi. north of JTNP boundary, c. 3 miles north of Dillon Road 632 Comment
  JOTR34329  Perityle emoryi Andre, Jim 2012-4-11 20833 Riverside Joshua Tree National Park. Western margin of Eagle Mountains; 0.6mi south of Cottonwood Visitor Ctr. along Rte 11 912 Comment
  RSA726521  Perityle emoryi Naomi Fraga, Lisa Rojas 2005-2-10 1402 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 361 Comment
  SBBG55711  Perityle emoryi D. Keil, M. McLeod, D. Walters 1977-3-28 12078 -2 Riverside Pinto Basin Rd, 11 mi S of northern park boundary Comment
  UC306394  Perityle emoryi Geo. B. Grant 1896-4-20 Riverside Palm Springs Colorado Desert, Palm Springs Comment
  CAS-BOT-BC419047  Persicaria lapathifolia Philip A. Munz 1935-10-21 14653 Riverside Santa Ana River below Rincon Comment
  SEINET3005048  Petalonyx thurberi G. Rink 2011-4-25 10485 Riverside Proposed Palo Verde Solar Power Plant about 15 miles southwest of Blythe 109 Comment
  RSA748602  Petalonyx thurberi subsp. thurberi Scott D. White, Justin M. Wood 2009-4-28 12594 Riverside Little San Bernardino Mountains: City of Desert Hot Springs, Proposed development N of Pierson Blvd and E of Verbena Dr. Comment
  SBBG4887  Petalonyx thurberi subsp. thurberi M. A. Piehl 1963-9-18 63840 Riverside near US 60, 70, 7.5 mi W of jct with Joshua Tree Mon Rd 373 Comment
  RSA554083  Petunia parviflora Megan Phillips 1992-4-10 92 -1 Riverside Growing in a wet pasture on the west side of the city of San Jacinto. Comment
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Apr 26 2007
  CAS-BOT-BC326726  Peucephyllum schottii D. B. Dunn; H. Brown 1947-2-9 2849 Riverside By quadrat III along canyon side, Pushawalla Canyon, Indio Hills Comment
  RSA791582  Phacelia ambigua var. minutiflora D. Silverman, Onkar Singh 2010-3-27 8056 Riverside North edge of Palo Verde Mesa, 150 m south of McCoy Wash, 5.3 km WSW of Mesaville Siding, and 6.1 km north of Blythe Airport. 137 Comment
  RSA74790  Phacelia campanularia F. W. Peirson 1926-2-22 6499 Riverside On talus slope east of bridge over Whitewater River, head of Coachella Valley Comment
  JOTR35925  Phacelia campanularia subsp. campanularia De Groot, Sarah J., Jessica Chu, Loraine Washburn 2013-3-22 6873 Riverside Joshua Tree National Park. Cottonwood Spring; Fan palm oasis and surrounding slopes. 905 Comment
  UCD120362  Phacelia crenulata C. L. Hitchcock 1966-3-16 24210 Riverside Along Palms to Pines Highway, 4 mi. S. of Palm Desert. 609 Comment
  HSC66544  Phacelia crenulata var. crenulata Christopher Davidson 1979-4-4 7700 Riverside Orocopia Mtns., lower end of Box Canyon on Box Canyon Rd., 4.4 mi. E of Mecca 213 Comment
  UCD80949  Phacelia crenulata var. minutiflora Chuck Hughes 2009-3-23 66 Riverside South of Highway 62 near the abandoned Desert Center Airport. Near city of Rice. 219 Comment
  POM73551  Phacelia distans Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  RSA778008  Phacelia distans Jim Andre 2011-2-9 15936 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
  SJSU1883  Phacelia distans J. W. Tilden 1957-4-18 1103 Riverside near Whitewater E of San Gorgonio Pass Comment
  CLARK-A1528-562  Phacelia minor 1947-3-21 5 Riverside Rubidoux 365 Comment
  CLARK-A1528-564  Phacelia minor C. M. Flanagan 1973-4-14 OO 103 Riverside Sunnymead 579 Comment
  OBI6306  Phacelia minor Robert F. Hoover 1969-4-13 11226 Riverside 7 mi NW of San Jacinto Comment
  UCR113174  Phacelia minor A. C. Sanders 1998-1-15 21643 Riverside Lake Skinner area, along old Rawson Rd. just north of Crown Valley, above Diamond Valley at waterline of proposed reservoir 518 Comment
  RSA0106603  Phacelia minor C. P. Cowan 1978-4-25 1281 Riverside 6.7 (10.7 km) miles SW on 74 from jct. with 71, 4.6 (7.3 km) miles from Lake Elsinore, Santa Ana Mountains, Cleveland National Forest. Whittaker transect #W-229. Comment
  UC2061795  Phacelia neglecta Susan Fawcett, B. G. Baldwin 2017-5-14 766 Riverside Corn Springs, Chuckwalla Mountains. Comment
  CSUSB153  Phacelia tanacetifolia David M. Peterson 1966-3-13 660313 1 Riverside Six miles south of Morongo Valley, on 29 Palms Road. 304 Comment
  SEINET954733  Phalaris canariensis Mitch Provance 2005-1 6569 Riverside Warm Springs Valley; Terra Cotta, Nichols Rd. Wetland at Alberhill Creek, ca. 100 yards SE of the Durant RR siding, the site bordered along the NW by Pierce St. and on the N by Alberhill Creek, with Baker St. more or less bisecting the collection site. 396 Comment
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Aug 21 2014
  CLARK-A1528-4797  Phalaris lemmonii John C. Roos 1966-3-24 Riverside Winchester Comment
  UCR155813  Phalaris minor John F. Green 2005-5-4 s.n. Riverside Perris-Aguanga Region, SE corner Markham St. and Day St., Mead Valley area, 2-3 mi SW of March Air Reserve Base 534 Comment
  UCR91939  Phalaris minor George K. Helmkamp 1996-3-11 1000 Riverside Sonoran (Colorado) Desert, Colorado River Valley, 35th Avenue and California Hwy 78, 1.7 mi north of PaloVerde 72 Comment
  RSA599129  Phalaris minor V. W. Steinmann, D. L. Banks 1996-4-20 840 Riverside ca. 10 km east of Temecula, along Route 79 at the junction with Los Caballos Road., ca. 33?29'N, 117?02' 30''W 375 Comment
  SEINET10516949  Phleum alpinum David B. Dunn 1946-8-17 Dunn 2680 Riverside Grass near stream at camp in Taquity valley damp meadow area. San Jacinto Mountains. 2438 Comment
  RSA40604  Phlox austromontana J. C. Roos 1946-8-27 2922 Riverside Santa Rosa Mountains. 2287 Comment
  RSA71998  Phlox austromontana F. W. Peirson 1922-5-20 908 Riverside Hemet Valley, San Jacinto Mountains. 1371 Comment
  RSA87942  Phlox austromontana Verne Grant 1954-6-10 19658 Riverside At Mountains Springs on Santa Rosa Mountain. Comment
  UCR214580  Pholistoma auritum A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37847 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, along dirt extension of Lake St., 0.93 mi. north (03 deg. ) of intersection of I-15 and Lake St. 469 Comment
  RSA550020  Pholistoma membranaceum Walter Wisura, A. King, L. Newcomb 1992-4-10 4677 Riverside Gorgonio Pass: Stubbe Canyon N of W-Palm Springs. 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
  UCR77766  Pholistoma racemosum Steve Boyd, L. Arnseth, Orlando Mistretta 1991-5-6 6131 Riverside SE end of Gavilan Hills, east of Arroyo del Toro, north-facing slope of low hill 488 Comment
  RSA420771  Phoradendron californicum Anstruther Davidson 1892-05 s.n. Riverside Banning. Comment
  RSA420775  Phoradendron californicum Gale Sphon 1955-5-15 s.n. Riverside Dead Indian Canyon near Palm Springs. Comment
  SBBG36339  Phoradendron californicum T. L. Secrest 1948-4-7 Riverside near Whitewater 289 Comment
  UCSB10620  Phoradendron californicum Gill, Robert 1960-3-23 Riverside Snow canyon, near end of road; Jan Jacinto Mountain range, Colorado Desert 533 Comment
  LA209888  Phoradendron leucarpum subsp. tomentosum Norman C. Cooper; 1944-7-16 1386 Riverside San Jacinto Mountains, Pine Cove Comment
  UCR95939  Phoradendron villosum Scott D. White 1996-8-1 4435 Riverside Peninsular Range; San Jacinto Mtns., Idyllwild area, Hwy 243 at Deer Springs trailhead and adjacent area 1829 Comment
  JEPS70616  Phragmites australis W. L. Jepson 1914-5-22 6044 Riverside ne Edom (cave in Thousand Palms Canyon); Colorado Desert, Thousand Palms Canyon Comment
  UCR177116  Physalis acutifolia A. C. Sanders 1993-8-14 14210 Riverside City of Riverside, vacant field (former citrus orchard) on south side of Palmyrita Ave. midway between Michigan Ave. & Mt. Vernon Ave, NW foot of Box Spring Mts. 323 Comment
  CDA41154  Physalis crassifolia T. C. Fuller 1964-4-14 11832 Riverside Bench above wash of Whitewater Canyon, 3.4 miles north of Whitewater. 0 Comment
  JEPS8988  Physalis crassifolia W. L. Jepson and W. C. Mathews May 1914 6028 Riverside n of Indio (County Well); Colorado Desert Comment
  RSA423813  Physalis crassifolia N. C. Cooper 1944-4-8 1059 Riverside Andreas Canyon. 305 Comment
  UCR51931  Physalis crassifolia Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, et al. 1988-3-10 2152 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  UCSB44693  Physalis crassifolia Hibbard, Doug 1977-5-14 Riverside Off east side of Hwy 74, 3.3 miles from its intersection with Hwy 111 280 Comment
  UCR178769  Phytolacca americana A. C. Sanders, T. B. Salvato, Helen Kennedy, Andrea Salzman 2006-11-9 33220 Riverside San Bernardino Valley, Riverside, UCR Botanical Garden, subtropical fruit orchard on the north side of the garden 335 Comment
  POM12205  Pilularia americana P. A. Munz 1922-4-29 5087 Riverside 0.5 mile south of Lake Elsinore. 381 Comment
  SDSU21794  Pilularia americana Michael G. Simpson, Laura Benedict, Zack Principe, Lee Ripma, Nuri Benet-Pierce, Andy Siekkinen 2016-5-7 3985 Riverside Santa Rosa Plateau Ecological Reserve. Across street from vernal pool trail, ca. 4 miles north on road from Visitor's Center. 636 Comment
  SEINET10612064  Pinus attenuata Porter P. Lowry II 1980-12-6 Lowry II 3125 Riverside Along State Hwy. 74, 14.2 mi SE of jct. with Stae Hwy. 79. San Bernardino National Forest. 1128 Comment
  RSA78326  Pinus jeffreyi Philip A. Munz, E. K. Balls 1952-8-21 17979 Riverside Santa Rosa Spring, Santa Rosa Mts. 2134 Comment
  CDA18000  Pinus monophylla L. D. Merrill 1999-8-27 s.n. Riverside Cactus Springs Trailhead, Santa Rosa Mtns. 0 Comment
  POM230743  Pinus ponderosa I. W. Clokey, E. Y. Anderson 1935-8-21 6506 Riverside Idlewilde-Banning. Calif. San Jacinto Range. 1500 Comment
  SEINET4457293  Pinus quadrifolia H. H. Smith 1912-1 5478 Riverside Comment
  UCR234254  Pistacia atlantica A. C. Sanders, T. B. Salvato 2012-4-27 40097 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. between Glen Ivy/I-15 and Indian Truck Trail, c. 500 m SE of El Hermano Rd. 325 Comment
  UCR98064  Pistacia atlantica A. C. Sanders 1997-3-1 19727 Riverside Riverside: E side of University of California campus. 335 Comment
  SBBG100815  Plagiobothrys arizonicus W. L. Halvorson 1977-3-13 77 -178 Riverside near Temecula Comment
  SBBG63863  Plagiobothrys canescens M. N. Ackley -May-1929 1298 Riverside Tahquitz Lodge 1524 Comment
  SD236235  Plagiobothrys canescens John F. Green 2006-4-18 Riverside NE of Murrieta, just S of Los Alamos Road (Clinton Keath Rd) on E and W sides of Liberty Road border between City of Murrietta and unincorporated French Valley (Murrieta 7.5'Q) 415 Comment
  UCR172214  Plagiobothrys canescens John F. Green 2006-5-3 s.n. Riverside Peninsular Ranges, French Valley, unincorporated Riverside County; along San Diego Aqueduct right of way between Benton Road and the obvious drainage to the south 412 Comment
  UCR120654  Plagiobothrys collinus D. E. Bramlet, P. Jacks, S. Goode 1989-4-6 1809 Riverside Perris-Aguanga Basin, Lake Skinner, north of the lake on the S-facing slope of Bachelor Mountain 488 Comment
  UCR97723  Plagiobothrys collinus Scott D. White 1997-2-9 4675 Riverside Peninsular Range, Elsinore Basin; Temescal Valley: SW of Hwy I-15 between Indian Truck Trail and Lake Street exits, c. 0.5 mi east of Glen Eden 460 Comment
  SEINET4568272 Image available Plagiobothrys jonesii Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4597 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  UCR214294  Plagiobothrys jonesii A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37475 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
  RSA689450  Plagiobothrys leptocladus Scott D. White, Michael Honer 2003-4-9 8970 Riverside Northeast corner of Devonshire Ave. and Warren Road, immediately southwest of Tres Cerritos. Former chicken farm. 473 Comment
  UCR92047  Plagiobothrys tenellus Scott D. White 1995-4-5 2759 Riverside Perris Valley, Lakeview Mountains; SW of Juniper Flat Road 579 Comment
  RSA251158  Plagiobothrys undulatus P. A. Munz 1941-5-18 16662 Riverside north end of Santa Rosa Ranch, Elsinore Mountains. 854 Comment
  UC1536775  Plantago erecta G. H. True 1935-3-13 89 Riverside Mockingbird Canyon 457 Comment
  UCR113044  Plantago erecta Mitch Provance 1998-3-31 304 Riverside Jurupa Mountains, SE Pyrite Canyon, c. .3 km NW of the quarries. 366 Comment
  SD262339  Plantago lanceolata T. B. Salvato, Gregg Miller 2005-6-3 1372 Riverside Peninsular Range; Perris-Aguanga Basin Region: San Jacinto River c. 2.5 mi SSW of Perris, 1.5 mi downstream of Goetz Road where the river leaves the Perris Plain and enters the hill area above Railroad Canyon (Romoland 7.5'Q) 427 Comment
  UC2030075  Plantago ovata V. Soza, J. M. Porter, G. D. Wallace 2001-4-2 1097 Riverside Transverse Ranges, Little San Bernardino Mountains region: Mouth of West Wide Canyon, NNW of junction of Dillon Road and Ford Avenue. Comment
  RSA402024A  Plantago ovata var. fastigiata A. Menke 1955-3-26 s.n. Riverside No Palms near Desert Center, Hwy 70 Comment
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Feb 19 2013
  RSA402042  Plantago ovata var. fastigiata N. C. Cooper 1944-5-20 2622 Riverside Pinyon Flats. 1067 Comment
  RSA4912  Plantago ovata var. fastigiata Carl B. Wolf 1932-4-28 3074 Riverside Chuckwalla Valley, 20 miles west of Blythe on Mecca Road 122 Comment
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Mar 26 2011
  SBBG37476  Plantago ovata var. fastigiata R. N. Muller 1967-4-8 Riverside ca. 2 mi W of St Hwy 62 on Mission Crk Rd, 4.7 mi N of jct between US Hwy 60 and St Hwy 62 579 Comment
  CHSC35880  Platanus racemosa James Henrickson 1972-5-21 7193 a Riverside Ca. 13 air mi. W. of Temecula in Matec Cyn. along Tenaja Rd. in flat area above steep falls along rd; ca. 4 mi. N. of Tenaja Campground. 457 Comment
  SEINET10620967  Platanus racemosa Greg Gust, Leith Nye 2005-3-12 Gust 557 Riverside Cleveland National Forest. Hwy 74 west of lower San Juan Picnic Area at pullout W side of Santa Ana Mountain Range. 495 Comment
  CAS-BOT-BC91886  Platystemon californicus W. R. Ernst 1958-5-2 278 Riverside About 2 miles north of Temecula along Highway 395. Comment
  CHSC35504  Platystemon californicus Jeanne Muro 1972-4-29 72 Riverside Ca. 4 mi. SW of Murrieta on Tenaja Rd. 655 Comment
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Nov 16 2011
  RSA674568  Platystemon californicus Scott D. White 2000-5-3 7767 Riverside Temecula Area: Near Wolf Valley. Valley and hillsides along unnamed tributary to Temecula Creek, directly S of 'Red Hawk' subdivision. 351 Comment
  UCD96039  Platystemon californicus C. L. Hitchcock 1962-3-16 22163 Riverside 5 miles SE of Elsinore. Comment
  UCR103918  Platystemon californicus B. G. Pitzer 1997-4-11 3114 Riverside Lakeview Mtns, Pulsar View Road (dirt), at sharp turn in road c. 1 mi. (air) NE of Juniper Flat Road, and c. 3/4 -1 mi. by road from the base of the hills. C. 3/4 mi. (airline) SE of Mt. Rudolph (measured from BM 'Nelson') 610 Comment
  RSA557892  Plectritis ciliosa subsp. insignis Steve D. Boyd, Orlando Mistretta 1992-4-22 6996 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
  RSA779620  Pleuraphis rigida Duncan S. Bell 2010-4-1 658 Riverside Arica Mountains: east side of the mountain range, west side of Rice Valley, near the lowest eastern drainage point for the Arica mountains; approximately 4.3 air miles southeast of the ghost town of Rice. 209 Comment
  RSA780227  Pleuraphis rigida Stephanie Rockwood, Christi Gabriel 2011-10-12 104 Riverside East side of the West Riverside Mountains. Highway 62 to NS857 (Radio Tower Road) to NS 853 to 7 Wash Road. Vidal Valley. 348 Comment
  CAS-BOT-BC177608  Pleurocoronis pluriseta Sarah J. De Groot; Leland Lubinsky; Naomi Fraga; Lisa Rojas 2005-2-10 4607 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains 402 Comment
  JOTR35069  Pleurocoronis pluriseta La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3521 Riverside Joshua Tree National Park. Southern end of Coxcomb Mountains with exposed metasedimentary rocky slopes; above narrow side canyon Comment
  SD187361  Pleurocoronis pluriseta Sarah J. De Groot, Leland Lubinsky, et al. 2005-2-10 4607 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. 402 Comment
  UC729734  Pleurocoronis pluriseta Carl B. Wolf 1932-4-27 3045 Riverside 1 mi off Mecca-Blythe Road (lower end of Lost Palms Canyon at first rocky hills); Colorado Desert, Lost Palms Canyon 243 Comment
  RSA715186  Pluchea sericea Marisa Sripracha, K. A. Boyd 2004-2-14 033 Riverside Sonoran (Colorado) Desert: Myoma, on the Thousand Palms Preserve, near the palm oasis just off Thousand Palms Drive 190 Comment
  UC485232  Pluchea sericea unknown May 1 1906-May 10 1906 1010 -6754 Riverside Palm Springs Colorado Desert Comment
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Apr 17 2011
  UCR92493  Poa annua S. J. Myers 1996-1-16 s.n. Riverside Perris Basin, 2 mi NE of Perris, flood control channel between Perris Blvd, & Murrieta St., parallel to Nuevo Rd c. 1/4 mi N. 442 Comment
  RSA575991  Poa annua Steve Boyd 1981-4-8 s.n. Riverside Gavilan Hills Region, Gavilan Plateau along Lake Mathews Road, south of Gavilan Peak. 640 Comment
  RSA586100  Poa annua D. L. Banks, Steve Boyd 1995-4-5 140 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, along the Dripping Springs Trail., 33 deg 27' 20''N-116 deg 58' 26''W. 646 Comment
  POM162493  Poa fendleriana Ralph Hoffmann 1929-9-6 s.n. Riverside San Jacinto Mountain Comment
  UC38599  Poa pratensis subsp. pratensis H. M. Hall July, 1901 Riverside Fuller's Mills Mts; San Jacinto Mts 1584 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
  RSA192341  Polygala cornuta var. fishiae H. A. Zuill 1966-6-19 232 Riverside Cole Canyon, 1-2 miles WSW of Murrieta Comment
  SD58949  Polygala cornuta var. fishiae E. Norland 1964-6-17 Riverside Just east of Riverside County line on Hwy 74 Comment
  POM319089  Polygonum aviculare subsp. aviculare Patricia Wilder 1971-5-13 4949 Riverside Prado Flood control Basin; along bank at east end of top of Prado Dam. 213 Comment
  SD143775  Polygonum aviculare subsp. depressum Scott D. White 1996-12-26 4644 Riverside Perris area, irrigared alfalfa field 424 Comment
  UCR93206  Polygonum lapathifolium Scott D. White 1995-7-7 3453 Riverside City of Riverside, Market Street crossing at Santa Ana River 344 Comment
  UCR9559  Polygonum lapathifolium O. F. Clarke 1968-9-18 s.n. Riverside From the campus of the University of California at Riverside Comment
  UCSB62513  Polypodium californicum Kiefer, Lawrence 1963-12-7 Riverside Elsinore, E running ravine W of Grand Ave., just N of Riverside Ave. 457 Comment
  UCR2728  Polypogon monspeliensis F. M. Reed 1932-9-26 7304 Riverside San Jacinto Mtns., Stream bed above Hemet Lake, near bridge 1326 Comment
  UCR237947  Populus fremontii Mark A. Elvin, Julie M. Vanderwier, A. C. Sanders 2002-4-9 1911 Riverside The Badlands, hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 671 Comment
  RSA0036069  Populus fremontii Ivan M. Johnston 1917-4-4 s.n. Riverside Palm Canyon along creek. 457 Comment
  SBBG19980  Porophyllum gracile M. A. Piehl 1963-9-18 63848 Riverside US Hwy 80, 2.7 mi W of Desert Center 312 Comment
  SD231232  Porophyllum gracile Scott D. White 2001-3-13 8158 Riverside Perris / Elsinore Basins: Minifee / Sun City area. Valleys and slopes east of Canyon Lake and west of Goetz Road. 441 Comment
  SEINET4691940  Portulaca oleracea Duncan S. Bell 2012-1 4194 Riverside Rice Valley; east side of the Arica Mountians; approx 6 air miles southeast of the ghost town of Rice and Approx. 5.5 air miles east of Priests Well 202 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
  UCR35169  Potentilla glandulosa subsp. reflexa L. B. Ziegler 1968-6-13 314 Riverside Peninsular Ranges, San Jacinto Mtns: Hemet (Garner) Valley region, upper Herkey Creek area, beyond May Valley 1616 Comment
  UC1746640  Potentilla norvegica T. Schram and D. Wappler 1994-7-14 Riverside Lake Hemet San Jacinto Mountains Comment
  POM361982  Prenanthella exigua M. B. Dunkle 1935-4-17 4560 Riverside W. of Wiley Well. Colorado Desert. Comment
  SEINET2428433 Image available Proboscidea althaeifolia Lester Rowntree 1937-1 Riverside Chuckwalla Mtns. Comment
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Sep 24 2017
  CAS-BOT-BC206977  Prosopis glandulosa var. torreyana W. R. Dudley 1903-12-27 s.n. Riverside Palm Springs Comment
  CAS-BOT-BC206992  Prosopis glandulosa var. torreyana K. Larson 1975-4-24 74 -671 Riverside 10 mi. NE of Desert Center, Hwy 177, road to Rice Comment
  UCD166277  Prosopis glandulosa var. torreyana Jack Major 1962-4-17 791 Riverside On the outskirts of Palm Desert. (Exact location unkown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC216515  Prosopis pubescens W. R. Dudley 1903-12-1 s.n. Riverside Near Palm Springs Comment
  SEINET10903690  Prosopis pubescens David B. Dunn, A. Folsom 1948-6-17 Dunn 3793 Riverside At camp in Pushawalla Canyon under palms. Comment
  UCD170965  Prunus caroliniana A. C. Sanders 2002-3-20 24899 Riverside Western 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
  CAS-BOT-BC151127  Prunus fremontii J. Ewan 1929-2-22 3684 Riverside Palm Canyon of San Jacinto 304 Comment
  CAS-BOT-BC151113  Prunus fremontii H. E. McMinn 1925-7-1 1516 Riverside Palm Spring Canyon Comment
  UCR16764  Prunus ilicifolia D. C. Wald 1967-5-13 s.n. Riverside Perris-Aguanga Basin region, Bernasconi Hills near Lakeview, on slope opposite Big Rock 503 Comment
  UC1979536  Prunus ilicifolia subsp. ilicifolia Darin L. Banks, Peter Morrell 1995-5-4 298 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove, along the Woodchuck Trail. Comment
  UCR117330  Prunus ilicifolia subsp. ilicifolia Mitch Provance 1998-6-11 656 Riverside Jurupa Mountains, NW Jurupa Mtns; south of the E extreme of Philadelphia St. 290 Comment
  POM13888  Psathyrotes ramosissima P. A. Munz, D. D. Keck 1922-4-9 4818 Riverside Shavers Well, near Mecca. 76 Comment
  RSA263880  Psathyrotes ramosissima C. W. Tilforth 1976-7-20 1212 Riverside Along power line road n.e. of Chiriaco Summit between Indio & Desert Center, Colorado Desert. Comment
  SEINET10842589  Psathyrotes ramosissima David B. Dunn, Howard Brown; Elizabeth M. McClintock 1947-3-15 Dunn 2889 Riverside Pushawalla Canyon Biota. Indio Hills. In dry wash. Comment
  POM10053  Pseudognaphalium biolettii Charlotte M. Wilder 1903-4-19 23 Riverside Wilder Canyon, W Riverside County Comment
  CAS-BOT-BC376153  Pseudognaphalium californicum L. Nye; G. Gust 2005-3-11 62 Riverside Lake Elsinore. Intersection of Malaga and Mission Trail Rd. 398 Comment
  SD20348  Pseudotsuga macrocarpa Carl Epling Apr 1937 Riverside San Jacinto Mountains, above Herkey Creek Camp Comment
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Jun 24 2009
  CLARK-A1528-2069  Psilocarphus brevissimus John C. Roos 1952-4-30 5601 Riverside Edgemont 487 Comment
  RSA617801  Psilocarphus brevissimus R. E. Riefner 1998-9-11 98 -502 Riverside Chino Fault, Corona Comment
  RSA623561  Psilocarphus brevissimus R. E. Riefner 1998-10-15 98 -524 Riverside Menefee-Paloma Valley Comment
  UCR67301  Psilocarphus brevissimus var. brevissimus A. C. Sanders, E. Rey, D. Willick 1991-4-19 10922 Riverside Edgemont area, east of Sycamore Canyon. 0.8 mile west of Hwy I-215, on Eastridge Dr. (=Eucalyptus), just west of Pepsi Plant 466 Comment
  CLARK-A1528-5673  Psoralea physodes John C. Roos 1960-5-30 Riverside Santa Ana Mountains 1219 Comment
  SD193049  Psorothamnus arborescens var. simplicifolius Scott D. White, Angelia Carey 2004-6-4 10479 A Riverside San Jacinto Mountain foothills: San Jacinto River wash and adjacent alluvial benches, near Indian Creek confluence. 502 Comment
  UC168707  Psorothamnus arborescens var. simplicifolius S. B. Parish 1907-4-23 6108 Riverside Palm Springs , Palm Springs (Colorado Desert) Comment
  UCR16206  Psorothamnus arborescens var. simplicifolius Grace Sprague 1968-5-3 s.n. Riverside San Bernardino Mtns., Whitewater Canyon. Comment
  CAS-BOT-BC353619  Psorothamnus emoryi B. D. Stark 1932-6-15 3731 Riverside Whitewater, road to Indio, Colorado Desert 152 Comment
  UC81886  Psorothamnus emoryi S. B. and W. F. Parish Apr 1882 93 Riverside Agua Caliente Comment
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Jul 12 2010
  CAS-BOT-BC340875  Psorothamnus schottii John Thomas Howell 1928-3-25 3548 Riverside At entrance to Painted Canon [Canyon], Colorado Desert Comment
  JEPS41629  Psorothamnus schottii Mary Beal 1939-10-25 714 Riverside Palm Springs area , Palm Springs area (Mojave Desert) Comment
  JEPS41645  Psorothamnus schottii I. W. Clokey, B. C. Templeton 1930-4-9 4688 Riverside North of Palm Springs, Colorado Desert 51 Comment
  RSA404256  Psorothamnus schottii N. C. Cooper 1944-5-20 2647 Riverside Palms to Pines Hwy., San Jacinto Mtns. 305 Comment
  SD229163  Psorothamnus schottii Dick Schwenkmeyer 2012-11-6 856 Riverside Palm Canyon, Ague Caliente Indian Reservation, 2.6 mi. south of the intersection of South Palm Canyon Drive and East Palm Canyon Drive, Palm Springs. 178 Comment
  SEINET2063921 Image available Psorothamnus schottii Unknown 1965-3-7 Riverside Directly 3 miles E of Thousand Palms. 91 Comment
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Mar 22 2019
  UCD166274  Psorothamnus schottii Jack Major 1962-4-17 788 Riverside On CA HWY 74 from Pinyon Flat to Palm Desert. (Exact location unknown. Coordinates estimated by label maker.) 435 Comment
  RSA404272  Psorothamnus spinosus Ora M. Clark 1929-2-22 1587 Riverside Sandy desert valleys. So. of Palm Springs. Colorado Desert. Comment
  UCR86207  Psorothamnus spinosus A. C. Sanders 1995-5-23 17119 Riverside Sonoran (Colorado) Desert, Coachella Valley, alluvial fans below the Santa Rosa Mountains, near the mouth of Martinez Canyon, at end of 72nd Avenue 25 Comment
  GMDRC6574  Pteridium aquilinum var. pubescens J. M. Andre 2012-6-15 30531 Riverside San Jacinto Mountains: along Hwy 243, 10.7 mi. south of Interstate 10 (Banning); SB Natl. Forest 1499 Comment
  UC1563132  Pterostegia drymarioides Steve Boyd, Tim Ross, and Laurel Arnseth 1989-4-1 3156 Riverside hills just to s.w. of dam Vail Lake area 487 Comment
  UCR123819  Pterostegia drymarioides Steven R. Hill 2001-5-3 33672 Riverside San Jacinto Mtns., NE-facing slopes of Mt. San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, c. 3.8 mi west of Calif. Hwy 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area 793 Comment
  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
  UCR95483  Purshia stansburyana Steve Boyd, Lorrae Fuentes 1996-5-2 8764 Riverside Peninsular Range; Santa Ana Mtns., Along the Main Divide Road c. 3.5 mi NW of Morrell Potrero Comment
  NY840213  Purshia tridentata var. glandulosa J. B. Walker 1996-7-22 1934 Riverside South of Palm Desert along Hwy. 74, 3km east of Pinyon Flats Campground 1200 Comment
  RSA772009  Purshia tridentata var. glandulosa Orlando Mistretta, Duncan S. Bell, Joy D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4964 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
  RSA0081603  Pyrola aphylla R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38139 Riverside San Jacinto Mountains: San Bernardino National Forest. Above James Reserve in Hall Canyon. On hill above lake. 1677 Comment
  UC5843  Quercus X acutidens Samuel B. Parish 1891-11-5 2258 Riverside McGee's Stone, e slope of the Coast Range Coast Range Comment
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Mar 9 2011
  UCR193490  Quercus X morehus A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-25 35609 Riverside Peninsular Range; San Jacinto Mtns., May Valley c. 1.0 mile SW of Fleming Ranch, along dirt track 1555 Comment
  UCSB38775  Quercus X munzii Tucker, John; Cavagnaro, D. 1965-10-2 Riverside Live Oak Tank; Joshua Tree National Monument Comment
  RSA614235  Quercus agrifolia A. C. Sanders, G Helmkamp 1997-3-15 19979 Riverside Lake Skinner area, N foot of 1700 ft. hill E of Bachelor Mtn., 488 Comment
  UCR260590  Quercus agrifolia A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-4-3 41559 Riverside Peninsular Range, Eastern Foot of the Santa Ana Mtns., Temescal Canyon NW of Horsethief Canyon Rd. along DePalma Rd., SE of Glen Eden Rd. and south of the east end of Lee (Corona) Lake, south side of I-15 370 Comment
  POM2107  Quercus berberidifolia Robinson, Crocker 1916-3-20 s.n. Riverside Santa Ana Mts. Comment
  UCD170857  Quercus berberidifolia Jeremiah George 2012-8-7 70812 6 Riverside San Jacinto Mtns. Foothills/San Gorgonio Pass, south of Beaumont, just east of intersection Highland Springs Ave. and Circle C Ranch. 747 Comment
  UCR135834  Quercus berberidifolia A. C. Sanders 2004-4-20 27523 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  UCR273036  Quercus berberidifolia Mitch Provance 2012-1-25 17380 Riverside Badlands of Western Riverside County, San Timoteo Canyon, SW end along SCE powerline access roads between El Casco Substation and the Hwy. 60. 689 Comment
  UCR273038  Quercus berberidifolia Mitch Provance 2012-1-25 17375 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
  UCSB12186  Quercus berberidifolia Breedlove, Dennis 1962-3-11 Riverside 5.7 miles northwest of Mountain Center, at junction with Riverside Highway 1 on State 74 944 Comment
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Feb 24 2013
  UCD45547  Quercus chrysolepis E. W. Lathrop 1966-3-23 6112 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peakm Skyline Drive, Riverside Co. Elevation 4000'. 1219 Comment
  UCD45551  Quercus chrysolepis E. W. Lathrop 1966-5-29 6383 Riverside Mail Divide Truck Trail between El Carriso and Santiago Peak, Cleveland Nat'l. Forest, Riverside Co. Elevation 4000 1219 Comment
  CAS-BOT-BC45769  Quercus cornelius-mulleri B. Trowbridge 1979-4-17 6096 Riverside Hiden Valley, Joshua Tree National Monument 914 Comment
  JOTR32841  Quercus cornelius-mulleri La Doux, Tasha, E. Babich, M. Brown 2008-9-30 1630 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Valley, near Lost Horse Ranger Station; granitic bouldery slopes above wash 1260 Comment
  UCR54431  Quercus cornelius-mulleri A. C. Sanders, E. J. Lawlor 1988-10-22 8719 Riverside Santa Rosa Mtns, Pinyon Flats Area, along Horsethief Creek where the trail from the Dolomite Mine Crosses. 1100 Comment
  CLARK-A1528-2920  Quercus dumosa John C. Roos 1947-12-13 3765 Riverside Lost Palms Canyon Comment
  SBBG119972  Quercus engelmannii A. C. Sanders with M. Misenhelter 2005-3-23 29264 Riverside E slope of Squaw Mtn, Avenida Escala just above Avenida Caleta, N of Tenaja Rd; Santa Rosa Plateau 701 Comment
  UC667286  Quercus john-tuckeri Annie M. Alexander and Louise Kellogg 1941-5-21 2210 Riverside n slope Eagle Mountains; Colorado Desert 1280 Comment
  SD232696  Quercus palmeri A. C. Sanders 1995-11-26 17925 Riverside Elder Creek drainage, NE of Tule Pk, between Aguanga & Anza, S of Hwy 371. Elder Crk. Rd. 0.3 mi. W of Bonny Lane, rural low density development, area partially cleared. 1264 Comment
  UCR26990  Quercus wislizeni E. W. Lathrop 1966-5-29 6385 Riverside Santa Ana Mtns, Cleveland National Forest, Main Divide Truck Trail between El Carriso and Santiago Peak 1223 Comment
  POM12865  Quercus wislizeni var. frutescens P. A. Munz 1922-6-30 5907 Riverside Santa Rosa Mts.: Santa Rosa. 1982 Comment
  UC527702  Quercus wislizeni var. frutescens C. B. Wolf 1931-10-14 Riverside 100 yds above Fish Hatchery (Snow Creek, n base of San Jacinto Mts); San Jacinto Mountains, Snow Creek 609 Comment
  UC63845  Ranunculus californicus H. M. Hall 1897-4-10 435 Riverside Pico's San Jacinto Valley (along ditch) Comment
  CAS-BOT-BC378494  Ranunculus californicus var. californicus Lyman Benson 1932-3-26 3164 Riverside 3 mi N Temecula; San Jacinto Mt. Range 457 Comment
  UC827690  Ranunculus cymbalaria var. saximontanus I. W. Clokey and E. G. Anderson 1935-8-21 6627 Riverside Hemet 1030 Comment
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Mar 24 2011
  UC56738  Raphanus sativus H. M. Hall April 1902 2989 Riverside vicinity of Riverside; Southern California 457 Comment
  UCR4160  Raphanus sativus R. H. Sauer 1965-3-1 s.n. Riverside City of Riverside, west end of Big Springs Road 335 Comment
  CAS-BOT-BC56050  Rhamnus ilicifolia I. M. Johnston 1930-6-15 3790 Riverside Lost Palms Canyon, above Anschutz Well, Eagle Mts. Comment
  RSA180486  Rhamnus ilicifolia E. W. Lathrop 1960-6-8 4910 -b Riverside 14 miles west of Murrieta Comment
  RSA505039  Rhamnus ilicifolia Ed LaRue 1989-6-14 s.n. Riverside E edge of Plateau overlooking town of Murrieta; ca 1.25 mi W of town and ca 1 mi (airline) E of De Luz Road 549 Comment
  JEPS58762  Rhododendron occidentale W. L. Jepson 2271 Riverside San Jacinto Mountain, Dark Canyon Dark Canyon; San Jacinto Mountain, Dark Canyon 1676 Comment
  UCSB25310  Rhododendron occidentale Gliessman, Stephen 1968-7-11 Riverside 0.6 mile south of Little Round Valley on the Deer Springs Trail, San Jacinto Mountains 2895 Comment
  CAS-BOT-BC170528  Rhus aromatica H. E. McMinn 1925-7-2 1515 Riverside Tahquitz Trail to Tahquitz Peak, San Jacinto Mts. 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
  HSC101784  Rhus ovata J. P. Smith, J. O. Sawyer, R. J. Cole 2011-6-9 13191 Riverside Along State Route 74 1227 Comment
  OBI29875  Rhus ovata Melissa Luckow, Rhonda Riggins 1982-4-15 826 Riverside Hwy 371, 3.6 mi N jctn with Hwy 79 in Aguanga Comment
  RSA13815  Rhus ovata Victor Duran 1933-7-3 3498 Riverside 2 miles east of Pinyon Flat, Santa Rosa Mountains. 1067 Comment
  RSA586146  Rhus ovata D. L. Banks, S. D. Boyd 1995-3-16 108 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. E of the Dripping Springs Alcove, N slope of Wildhorse Peak, on the Wildhorse Trail. 671 Comment
  RSA648294  Rhus ovata Mark Hotchkiss 1977-4-23 s.n. Riverside Approx. 5 mi. S. of Baning on R 1. 914 Comment
  UCSB3764  Rhus ovata Ralph, F. 1959-5-17 Riverside On Pinon Flats Campground just off Hwy. 74 about 15.1 miles south of Palm Desert City Limits 1219 Comment
  CAS-BOT-BC173139  Ribes indecorum C. L. Hitchcock; C. V. Muhlick 1964-3-17 23111 Riverside 10 miles n. of Pala, along road to Elsinore Comment
  SEINET3095401 Image available Ribes indecorum B. Pitzer, Jack Easton 1987-3-10 405 Riverside Anza area, hills S of Thomas Mtn., ca 3 mi. (airline) E of town of Anza on N side of Hwy 371. (Butterfly Peak Quad) Comment
  UCR102727  Ribes indecorum B. G. Pitzer 1998-1-25 3415 Riverside Lakeview Mtns., Reinhardt Canyon, Maze Stone County Park, at N terminus of California Avenue 610 Comment
  UCR117671  Ribes malvaceum Scott D. White 1997-5-25 5229 Riverside San Jacinto Mtns, Bautista Canyon: Hixon Trail (USFS No. 2E43), between trailhead at Bautista Canyon Road and intermittent stream crossing at c. 3200 ft 976 Comment
  LA205474  Ribes malvaceum var. viridifolium W. E. Pequegnat; 1939-4-8 30 Riverside Santa Rosa Mountains Comment
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Mar 12 2014
  RSA3114  Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 2643 Riverside Hidden Canyon 5 mi. W. of Corona at base of Santa Ana Mts. 405 Comment
  POM20019  Ribes nevadense Mary F. Spencer 1923-6-12 2174 Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  SD132413  Romneya coulteri var. coulteri Narca A. Moore-Craig 1984-4-21 Riverside Santa Ana Mtns. Temescal Canyon at boundary of Cleveland Natl. Forest and Glen. 427 Comment
  UCR260134  Rumex A. C. Sanders 2015-2-19 41251 Riverside San Jacinto Valley, 53 acre parcel c. 370 m south of Ramona Expressway and 1 km east of Warren Rd., north of Record Rd. 442 Comment
  HSC86139  Rumex acetosella B. Freeman 1969-6-28 6906284 Riverside University of California James Reserve, East of stream nearest gate, along road Comment
  POM13008  Rumex acetosella P. A. Munz, I. M. Johnston 1922-5-19 5423 Riverside Keen Camp, San Jacinto Mountains. 1463 Comment
  RSA180404  Rumex crispus E. W. Lathrop 1965-5-30 5777 Riverside 6 miles W of Murrieta. Comment
  RSA596773  Rumex hymenosepalus D. L. Banks, K. D. Hedge 1996-5-16 1043 Riverside NW Palomar Mountains; Agua Tibia Mountains; N foothills of Dorland Mtn., S of Temecula Creek; 0.4 miles E of Pauba Road on the N side of Los Caballos Road, along the broad, sandy, southern alluvial bench of Temecula Creek. 370 Comment
  UCR260198  Rumex hymenosepalus Duncan S. Bell, Kim Clark, Keir Morse, Harry Spilman 2013-3-30 4658 Riverside Western Mojave Desert, around the confluence of the San Gorgonio and Whitewater River drainages, just south of the historic Palm Springs Station, about 1.5 air miles northwest of Windy Point 340 Comment
  UCD101644  Rumex salicifolius Scott D. White 1997-5-25 5247 A Riverside San Jacinto Mtn. Bautista Canyon: Hixon Trail (USFS No.2E43), between trailhead at Bautista Cyn. Rd. and intermittent stream crossing, 792 Comment
  UCSB42110  Ruta graveolens Roos, John 1950-4-22 Riverside Pass between Reche Canyon and Pigeon Pass Road 457 Comment
  RSA477743  Sagina saginoides Kessler 1921-9-1 s.n. Riverside Mt. San Jacinto. Comment
  UC1281086  Salazaria mexicana H. E. McMinn 1935-6-27 4060 Riverside Palms to Pines Highway Comment
  UC909938  Salazaria mexicana I. W. Clokey 1935-4-17 6967 Riverside Cottonwood Springs Comment
  CAS-BOT-BC126716  Salix gooddingii A. C. Sanders; T. B. Salvato; Matthew Malle; Jonas Winbolt; Katie A. Kurtz 2010-3-31 37670 Riverside Peninsular Range; foothills of Gavilan Hills: Temescal Canyon at Alberhill, c. 1/2 mi. west of Lake St. on N side of I-15, N of Temescal Canyon Rd. and NW of Concordia Ranch Rd., NW of horse racing track 366 Comment
  LA208652  Salix gooddingii John O'Leary; 1975-4-18 362 Riverside in the S end of Reche Canyon (@ 4 mi E of UC Riverside) 426 Comment
  POM182037  Salix gooddingii Carl B. Wolf 1932-4-28 3085 Riverside Overflow land back of Colorado River, about 800 m. from State Inspection Station, on way to Blythe Bridge. 90 Comment
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Mar 26 2011
  RSA509527  Salix gooddingii Ed LaRue 1989-4-7 s.n. Riverside Woodcrest area: 1/2 mile NE of the intersection of Van Buren Blvd and Mockingbird Canyon Road. 366 Comment
  RSA717579  Salix gooddingii A. C. Sanders 2004-5-11 27842 Riverside Elsinore Basin Region: Alberhill Mountain, former clay mine area ca. 1 mile SE of Alberhill 439 Comment
  UCR189284  Salix gooddingii Fred M. Roberts, S. Leatherman 2007-9-19 6593 Riverside Santa Ana Canyon, Santa Ana River, across from Green River Golf Course, 0.15 km W of Green River Road bridge 128 Comment
  RSA0038297  Salix gooddingii Norman C. Cooper 1943-9-26 931 Riverside Cabazon 548 Comment
  CAS-BOT-BC108217  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  RSA612479  Salix lasiolepis D. L. Banks 1997-2-23 1338 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, south of Pechanga Road in the Reservation, north of Pechanga Creek, and east of the Pechanga Tribal Government Center. 368 Comment
  UCR132419  Salix lasiolepis A. C. Sanders 2004-2-6 27381 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
  UCR159247  Salix lasiolepis A. C. Sanders, Kelly Volansky 2005-8-31 31574 Riverside Santa Ana Mtns. Region, Santa Rosa Plateau, hills west of headwaters of De Luz Creek, 50 acre parcel on east side Avenida La Cresta south of Sierra Elena Rd., c. 0.5 mi. N of Tenaja Rd. 701 Comment
  UCR3335  Salix lasiolepis T. R. Plumb 1964-4-11 s.n. Riverside San Jacinto Mountains, North Mountain [=Mt. Edna?] c. 5 mi south on Old Banning-Idyllwild Rd. 976 Comment
  UC1409163  Salsola paulsenii Philip A. Munz 1973-3-21 18330 Riverside between Indio and Palm Desert (across Highway 111 from Shields Date Gardens); between Indio and Palm Desert Comment
  RSA728670  Salsola tragus R. E. Riefner 2007-2-19 7 -72 Riverside City of Perris, along Hwy. 74 at 4th St. and B st. 462 Comment
  RSA594531  Salsola tragus D. L. Banks, Rashmi Pant 1996-5-13 1011 A Riverside NW Palomar Mountains; Agua Tibia Mountains; Foothills S of Hwy. 79 ; E of the Dripping Spring Campground; Along a xeric, arkose ridge, approximately 100 m E of the Dripping Springs Guard Station, just S of Hwy. 500 Comment
  JEPS86050  Saltugilia australis W. L. Jepson 1901-5-19 1284 Riverside San Jacinto Canyon , San Jacinto Canyon (San Jacinto Mtns.) Comment
  RSA628607  Saltugilia australis H. A. Haid 1968-1 s.n. Riverside San Jacinto Mountains: Bautisa Canyon, above the confluence with Horse Creek 878 Comment
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May 21 2016
  UCR103916  Saltugilia australis B. G. Pitzer 1997-4-11 3107 Riverside Lakeview Mtns, Pulsar View Road (dirt), at sharp turn in road c. 1 mi. (air) NE of Juniper Flat Road, and c. 3/4 -1 mi. by road from the base of the hills. C. 3/4 mi. (airline) SE of Mt. Rudolph (measured from BM 'Nelson') 610 Comment
  IRVC2068  Salvia apiana R. H. Whittaker, W. A. Niering 1963-5-28 SJ 37 Riverside Mountain Center, Hemet Hwy. San Jacinto Mountains 976 Comment
  RSA502186  Salvia apiana Steve Boyd, T. S. Ross, L. Arnseth 1989-6-11 3712 Riverside Vail Lake area, sandy wash draining into Wilson Creek at E end of lake. Comment
  UC76195  Salvia apiana Miss M. A. King 1893-1 Riverside Menifee Comment
  RSA125970  Salvia apiana var. compacta E. K. Balls, P. C. Everett 1957-11-4 22748 Riverside Snow Creek near old Fish Hatchery, north base San Jacinto Mountains. 701 Comment
  IRVC8206  Salvia columbariae D. W. Goodall 1968-4-22 none Riverside Hwy. 74; 6 km. south of Palm Desert. Santa Rosa Mountains Comment
  SD10679  Salvia columbariae Mrs. D. R. Wolf 1932-3-20 28 Riverside 2.5 Mi N of De Luz, Redman Ranch 1500 Comment
  UCR224449  Salvia columbariae Steve Boyd, Susan Jett 2008-3-20 11828 Riverside Peninsular Ranges; Santa Ana Mountains region, Eastern flank of the range along El Cariso Truck Trail ca. 0.5 mi north of Highway 74. (33 deg. 39'26"N, 117 deg. 24'25"W). 732 Comment
  UCSB9265  Salvia columbariae Wedberg, H. 1957-3-23 Riverside Whitewater Canyon Comment
  RSA0073234  Salvia columbariae Bonnie C. Templeton, I. W. Clokey 1930-4-9 1004 Riverside San Gorgonio Pass, north end of Colorado Desert. 609 Comment
  SEINET13947330 Image available Salvia columbariae Kay Raeder 1955-1 593 Riverside Just outside Joshua Tree National Monument on Hidden Valley Rd.; 4300 ft alt. 1311 Comment
  RSA664086  Salvia columbariae var. columbariae Bruce Albert 1982-4-17 70 Riverside Hillside west of Lake Mathews Road, 2 miles south of Cajalco Road. Comment
  UCSB5789  Salvia eremostachya Wilson, Richard 1958-5-18 Riverside 5 miles East of Pinon Flats Comment
  UC279683  Salvia greatae Edmund C. Jaeger 1926-2-28 Riverside 18 mi se Mecca; Salt Creek Wash Comment
  POM50386  Salvia mellifera W. W. Eggleston 1924-3-10 19538 Riverside San Jacinto Station, Cleveland Forest 600 Comment
  RSA717684  Salvia mellifera A. C. Sanders 2004-5-5 27775 Riverside Gavilan Hills; route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, ca. 0.25 mi. NNW of Harford Spring, ca. 1.2 mi. NE of Gavilan Peak. 579 Comment
  UCR121321  Salvia mellifera A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-22 24999 Riverside Peninsular Range; San Jacinto Mtns. Region, The Badlands; summit of Mt. Eden, SW of Beaumont 717 Comment
  SEINET3208882  Sambucus nigra subsp. caerulea G. Goodwin 2012-6-14 3436 Riverside San Jacinto Mountains, 3 miles south of Banning along highway 243 910 Comment
  UCR37479  Sanicula arguta Steve Boyd 1981-3-16 s.n. Riverside Peninsular Range, Gavilan Hills, Estelle Mtn. Comment
  RSA715104  Sanicula bipinnatifida A. C. Sanders, Guy Bruyea 2004-4-2 27435 Riverside Peninsular Range: Temescal Canyon, Serrano Highlands project, between Glen Ivy Hot Springs and Arcilla, NE side of the I-15 Fwy, south of Clay Canyon Rd. 305 Comment
  POM128365  Sanicula crassicaulis Thos Craig 1927-4-23 204 Riverside Glen Ivy. Comment
  UCR158321  Sanicula crassicaulis A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30064 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
  UCR102864  Sanicula tuberosa A. C. Sanders 1997-4-3 20150 Riverside Lake Skinner area, near north foot of Black Mountain, slopes south of Crown Valley 726 Comment
  UCSB18101  Sanicula tuberosa Lean, Jr., Steve 1963-5-4 Riverside Banning to Idyllwild Road, 7.2 miles S of Banning 1219 Comment
  JEPS59100  Sarcodes sanguinea Carl V. Meyer Jun 1927 157 Riverside Saunder's Meadow, San Jacinto Mts. Comment
  RSA471127  Sarcodes sanguinea N. C. Cooper 1944-6-17 1404 Riverside Pine Cove. San Jacinto Mtns. 1829 Comment
  CLARK-A1528-1467  Sarcostemma cynanchoides subsp. hartwegii John C. Roos 1952-8-27 5891 Riverside Reche Canyon 457 Comment
  JEPS27439  Sarcostemma cynanchoides subsp. hartwegii W. L. Jepson 1914-5-25 6071 Riverside San Gorgonio Pass 548 Comment
  UCR41841  Sarcostemma hirtellum A. C. Sanders, B. Pitzer, D. Charlton, R. & J. Kniffen, J. M. Stewart 1986-3-2 6066 Riverside Sonoran (Colorado) Desert, Graham Pass, between Chuckwalla Mtns & Little Chuckwalla Mtns. 503 Comment
  UCR189553  Satureja chandleri Diane Menuz 2006-6-6 141 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, Miller Canyon, 1 hour hike from road 549 Comment
  RSA0094894  Schinus terebinthifolius A. C. Sanders, Jeff Crain 2015-5-20 41740 Riverside Temesal Canyon, Temescal Creek at I-15 bridge, 2.2 km west of Lake St. at Alberhill. 363 Comment
  RSA682166  Schismus barbatus Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10474 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
  UCR121349  Schismus barbatus A. C. Sanders, Mark Elvin, , Vipul Joshi 2002-4-26 25029 Riverside The Badlands, west fork of Laborde Canyon near old rocket test facility 622 Comment
  UCR174328  Schismus barbatus A. C. Sanders 2006-5-19 32417 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
  UCR89763  Schoenoplectus acutus var. occidentalis Scott D. White 1993-5-27 1435 Riverside Peninsular Range, North Alberhill Ranch, in hills north of Walker Canyon 490 Comment
  RSA289839  Schoenoplectus americanus B. A. Prigge 1980-9-17 4075 Riverside Coachella Valley Stormwater Channel: 1.5 miles N of Coachella where Dillon Road crosses channel. -12 Comment
  UCR113863  Schoenoplectus americanus Mitch Provance 2000-6-24 2067 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  UCR50002  Scirpus cernuus Theo Glenn 1987-6-15 s.n. Riverside Western Colorado Desert, Coachella Valley, Thousand Palms Oasis, in the Indio Hills. 168 Comment
  RSA366024  Scirpus microcarpus M. B. Dunkle 1933-7-21 3723 Riverside Idyllwild 1616 Comment
  UCR138609  Scirpus microcarpus D. L. Banks 1996-11-7 1192 Riverside Peninsular Range; Agua Tibia Mountains, NW Palomar Mountains: Pechanga Indian Reservation, east of San Gabriel Church. At the end of the main road in the Reservation, c. 150 m NW of the spring on the N fork of Pechanga Creek, at the E end of the Reservation 473 Comment
  RSA783651  Scrophularia californica J. D. Olmsted 1958-6-10 157 Riverside 6 miles SW of Corona on Oak Flat fire road (turn S from US on Lincoln). Lower Santa Ana Reservoir. 732 Comment
  UCR240997  Scrophularia californica Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 17 Riverside South Coast/Peninsular Range, Riverside, Sycamore Canyon, near the entrance to the park 396 Comment
  UCR24923  Scrophularia californica A. C. Sanders 1980-7-18 1650 Riverside San Jacinto Mtns., Thomas Mountain: Thomas Mountain Campground to the summit at the lookout 2073 Comment
  SEINET156173  Scutellaria angustifolia Norman C. Cooper 1944-7-16 1540 Riverside San Jacinto Mtn., Pine Cove. 1524 Comment
  CAS-BOT-BC214219  Scutellaria bolanderi subsp. austromontana S. B. Parish; W. F. Parish 1882-6-1 474 Riverside Near Toll House, San Jacinto River Comment
  RSA739712  Scutellaria bolanderi subsp. austromontana A. C. Sanders, Tim Thomas, T. B. Salvato, Mitch Provance 2008-7-1 35641 Riverside Peninsular Range; San Jacinto Mtns.: May Valley, along nameless tributary of Herkey Creek NW of Bonita Vista Rd., 3/4 mi. SW of Fleming Ranch 1524 Comment
  RSA0074166  Scutellaria siphocampyloides John Olmsted 1958-6-15 183 Riverside North shore of Hemet Lake, 10 miles south of Mt. Center just off Pines to Palms Hwy. Mt. Range: San Jacinto Mountains; Drainage area: S. Fk. San Jacinto R. 1326 Comment
  RSA613133  Scutellaria tuberosa D. L. Banks 1997-3-6 1403 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. ''Fiesta Grounds'', east of Pechanga Creek along the northern fork of Pechanga Creek at the eastern end of the Reservation. 424 Comment
  UCR26047  Secale cereale N. M. Fellows 1982-5-29 s.n. Riverside Peninsular Range, Pauba Valley, 6 miles SE of Temecula, adjacent to Hwy 79 Comment
  UCR113155  Selaginella bigelovii A. C. Sanders 1998-1-15 21648 Riverside Lake Skinner area, along old Rawson Rd. just north of Crown Valley, above Diamond Valley at waterline of proposed reservoir 518 Comment
  UC279628  Selaginella watsonii E. C. Jaeger 1921-7-2 563 Riverside San Jacinto Peak 3293 Comment
  CAS-BOT-BC327392  Senecio aphanactis Mrs. Wilder 1909-4-1 s.n. Riverside Near Riverside Comment
  SBBG93105  Senecio californicus D. Mitchell 1990-4-30 Riverside W side of Sage Rd, ca. 0.5 mi S of intersection with Wilson Valley Rd 701 Comment
  UCR123225  Senecio californicus D. E. Bramlet 1993-4-15 2329 Riverside Gavilan Hills, eastern Lake Mathews area, 2 km west of El Sobrante Rd. and 335 m north of Cajalco Road, 1.2 km west of the entrance gate and 152 m south of the access road 439 Comment
  UCR40409  Senecio flaccidus var. douglasii Steve Boyd 1985-8-7 1113 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, Clinton Keith Road, [Slaughterhouse Canyon] 1.7 mi. east of gate to The Nature Conservancy Preserve 488 Comment
  JEPS37608  Senecio mohavensis W. L. Jepson 1927-4-12 11656 Riverside Mecca Hills , Painted Canyon (Painted Canyon) 76 Comment
  RSA796016  Senecio mohavensis Duncan S. Bell 2009-4-18 247 Riverside Arica Mountains: southeast side of range, approximately 1.7 air miles west of Priests Well. 463 Comment
  SBBG8768  Senecio mohavensis H. and M. Dearing 1942-3-10 4827 Riverside Dos Palmas Cyn, near Palms to Pines Hwy 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
  RSA0103424  Senna covesii Duncan S. Bell, Sarah DeGroot, Cheryl Sevilla 2015-3-5 7763 Riverside Chuckwalla Mountains; a side canyon off of Irish Wash, approximately 1.5 air miles southwest of Aztec Well. 696 Comment
  UCR57995  Senna obtusifolia Les Ede 1989-8-19 s.n. Riverside Colorado River Valley/ Sonoran (Colorado) Desert, S of Blythe in the Palo Verde Valley, c. 1 mi. north of the Imperial County line 67 Comment
  UC2013412  Sequoiadendron giganteum Rudolf Schmid and Mena J. Schmid 2009-5-1 2009 -6 Riverside NW San Jacinto Mountains NE of Highway 243 ca. 16 Highway km NW of Idyllwild, in the S unit of the San Bernardino National Forest, on SW, flank of Black Mountain (summit). Just left (as ascending) of Black Mountain Trail in flat open area on the sloping plateau or saddle just above the head of Hall Canyon. Comment
  HSC82846  Sesbania exaltata A. C. Sanders 1985-8-24 5950 Riverside Near Oasis, Hwy 195, ca. 1/2 mi. N of intersection with Hwy. 186 -52 Comment
  IRVC29108  Sesbania herbacea Chet McGaugh 2004-11-15 s.n. Riverside Coachella Valley, 1 mile south of Thermal, parcel bounded by Ave. 58 & Ave. 60 on the north and south and by Polk and Filmore on the west and east, between the airport and Whitewater River Sonoran (Colorado) Desert -41 Comment
  RSA675695  Sesuvium verrucosum Scott D. White 2001-5-1 8440 Riverside Near Sun City: Quail Valley: Valleys and slopes east of Canyon Lake and west of Goetz Road. 442 Comment
  UCR110372  Sesuvium verrucosum A. C. Sanders, Mitch Provance 1999-9-26 23121 Riverside San Jacinto Valley, Mystic (San Jacinto) Lake, 1.4 mi. SE of Jackrabbit Trail on Gilman Springs Rd., 1.4 mi. south of Eden Hot Spring 433 Comment
  UCR157943  Setaria viridis T. B. Salvato, A. C. Sanders 2005-5-17 912 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
  POM13266B  Sidalcea malviflora subsp. sparsifolia P. A. Munz, I. M. Johnston 1922-5-19 5441 Riverside Hemet Valley, San Jacinto Mountains, 1 mile from Garner Ranch. 1372 Comment
  RSA95377  Sidalcea malviflora subsp. sparsifolia F. W. Peirson 1914-04 2058 Riverside Beaumont, San Gorgonio Pass. Comment
  SD137808  Silene antirrhina Darin L. Banks, Steve Boyd 1995-5-3 236 Riverside Cleveland National Forest, Agua Tibia Wilderness Area; north slope of Agua Tibia Mountain, east of the Drippin Springs Alcove Area. 515 Comment
  RSA612787  Silene gallica D. L. Banks, Victor Steinmann 1997-3-13 1415 Riverside NW Palomar Mountains, Agua Tibia Mountains: In the Redhawk Housing Development, north of the Pechanga Indian Reservation. The hills south of the intersection of Marge Place and Tehachapi Pass (south of Redhawk Parkway). 378 Comment
  UCR26373  Silene parishii A. C. Sanders 1981-7-11 2206 Riverside San Jacinto Mtns, Bull Canyon Road, near the head of the trail to Live Oak Spring Comment
  SD181611  Silene verecunda subsp. platyota Scott D. White, Tasha LaDoux 2000-4-20 7712 Riverside South of Hemet, 'Gibbel Flat', in the Santa Rosa Hills. Scarce in crevices among rocks. 609 Comment
  CAS-BOT-BC202955  Simmondsia chinensis Peter H. Raven 1958-2-15 11582 Riverside Chuckwalla Mountains, in wash below Corn Springs Comment
  SEINET7073430  Simmondsia chinensis A. G. Vestal 1963-4-25 s.n. Riverside About 6.8 miles south of Sage on Route 3. Coordinate datum: NAD27. Comment
  UC218089  Simmondsia chinensis P. A. Munz and D. Keck Apr 9 1922-Apr 12 1922 4784 Riverside vicinity Corn Springs (Chuckwalla Mountains); Colorado Desert, Chuckwalla Mountains 457 Comment
  UC519862  Simmondsia chinensis N. Dunn and A. M. Martin Mar 26 1932-Mar 27 1932 Riverside Cottonwood Spring Comment
  UC68604  Simmondsia chinensis H. M. Hall May, 1905 5870 Riverside Chuckawalla Bench; Colorado Desert, Chuckawalla Bench Comment
  UCR163079  Simmondsia chinensis B. G. Pitzer 2000-5-7 4142 Riverside Sonoran (Colorado) Desert, extreme north end of Orocopia Mountains, Shavers Valley, at base of hills c. 0.5 mi. SE of Box Canyon Road. 341 Comment
  UCR216205  Simmondsia chinensis Jim Andre, T. La Doux 2009-2-25 10799 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains; c. 0.5 mi. south of I-10 freeway at Eagle Mountain Road exit 414 Comment
  CAS-BOT-BC74912  Sinapis arvensis J. H. Thomas 1957-3-29 6519 Riverside Between Banning and Cabazon, about 2 miles east of Banning near railroad tracks. 609 Comment
  RSA528092  Sisymbrium altissimum Scott D. White 1991-4-10 91 -63 Riverside Diamond Valley area, ca. 1/2 mi. E of Mica Butte, & S of Cactus Valley Road 518 Comment