Search Results — 2000 specimen records retrieved (1898 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD229020  Abies concolor Dick Schwenkmeyer 2012-8-27 798 Riverside 3.2 miles southeast of the intersection of highway 243 and Fuller's Mill road, 7.5 miles north of Idyllwild. 1887 Comment
  CAS-BOT-BC229342  Abronia villosa Scott D. White 1996-4-14 3913 Riverside Perris Basin. E of Hemet: San Jacinto River Wash near Valle Vista, N of Hwy. 74, ca. 1.7 mi W of USFS Cranston Fire Station 550 Comment
  UCR165275  Abronia villosa John F. Green 2005-2-4 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, transect along Coachella Canal right-of-way, between siphons 29 and 30, c. 3 miles east of Desert Beach 24 Comment
  SEINET11941850  Abronia villosa E. A. Purer 1935-1 6453 Riverside Near Palm Springs, W edge of Colorado Desert Comment
  RSA788728  Abronia villosa var. aurita Duncan S. Bell 2012-3-8 3151 Riverside Southern section of the Mecca Hills, approximately 2 air miles southeast of where the Coachella Canal and Hidden Springs Canyon cross each other. 68 Comment
  UC1922010  Abronia villosa var. aurita Scott D. White, Angelia Carey 2004-4-5 9978 Riverside SAN JACINTO MTN FOOTHILLS: North of Valle Vista. Indian Creek Watershed. Comment
  UC7621 Image available Abronia villosa var. aurita S. B. Parish Apr 4 1896-Apr 13 1896 4138 Riverside desert base of San Jacinto Mt.(Agua Caliente) Palm Springs, San Jacinto Mt. 152 Comment
Read comments
Jul 8 2010
  RSA726576  Abronia villosa var. villosa Naomi S. Fraga, Sarah J. De Groot, Lisa Rojas, Lel Lubinsky 2005-2-10 1420 Riverside Along Palen Road near Hwy 177. 170 Comment
  UCR127579  Abronia villosa var. villosa D. E. Bramlet 2003-5-28 3455 Riverside San Gorgonio wash, along dirt road to MWD tailings site, 1768m south of Cabazon, and 762m north of the Colorado aqueduct 545 Comment
  UCR228397  Abronia villosa var. villosa Thomas R. Stoughton, J. McConnaughy, A. Monks, M. Volke 2010-4-27 171 Riverside Northeastern Colorado (Sonoran) Desert, Mecca Hills Wilderness, off Box Canyon Road (66th St./Hwy 195), campground east of Mecca 198 Comment
  UC68625  Acacia greggii H. M. Hall Apr 1905 5987 Riverside near Indio (Colorado Desert); Colorado Desert 30 Comment
  RSA125463  Acacia greggii var. arizonica E. K. Balls, Percy C. Everett 1957-8-20 22664 Riverside Morongo Pass, 8 3/4 mi N. along rd. to 29 Palms from jct. with U.S. Hwy 60/70/99. 640 Comment
  CAS-BOT-BC177004  Acacia redolens A. C. Sanders; T. B. Salvato 2001-3-30 23856 Riverside Perris-Aguanga Basin region: Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon W of junction of Av. ina Colada 366 Comment
  RSA757824  Acamptopappus sphaerocephalus M. Wall 2010-5-6 556 Riverside San Gorgonio Pass area, off Tipton Rd. ca. 0.75 miles west of jct with Hwy 111 350 Comment
  JEPS484  Achnatherum speciosum W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1455 Riverside Coyote Canyon Comment
  JOTR37485  Achyronychia cooperi Manson, Stacy, B. Jasinkski 2016-5-24 s.n. Riverside Joshua Tree National Park. Cottonwood Mountains, Cottonwood Canyon, off of main park road in the Coyote borrow pit Comment
  RSA688912  Achyronychia cooperi Scott D. White 2001-4-18 8355 Riverside Coachella Valley: Palm Springs. NE corner of Sunrise Dr. and San Raphael Dr. (Palm Springs) 152 Comment
  SD233271  Achyronychia cooperi Justin M. Wood 2009-3-26 394 Riverside Colorado Desert: Western foothills of Mecca Hills A+-0.5 air mile east of the Coachella Canal and 4 air miles S of the I-10 Freeway. In an unnamed wash draining to the west. 21 Comment
  UCR134609  Achyronychia cooperi Marisa Sripracha, Kyle Boyd 2004-2-14 032 Riverside Sonoran (Colorado) Desert, Myoma, on the Thousand Palms Preserve, near the palm oasis just off Thousand Palms Drive 190 Comment
  UCR215004  Achyronychia cooperi T. B. Salvato 2010-4-20 4069 Riverside Sonoran (Colorado) Desert, alluvial slope between the McCoy Mountains and McCoy Wash, c. 14 mi northwest of Blythe 189 Comment
  UCSB23492  Achyronychia cooperi Keefe, Joseph 1967-1-2 Riverside Campground; Salton Beach Park; northeast end of Salton Sea; southeast of Mecca -36 Comment
  CAS-BOT-BC213411  Acmispon argophyllus var. argophyllus I. M. Johnston 1920-5-8 2273 Riverside Butte west of Lakeview. Comment
  OBI39886  Acmispon glaber var. brevialatus M. Rosczyk & G. Helmkamp, G. Helmkamp 1985-4-4 208 Riverside Big Morongo Preserve. S of Morongo Valley. Main cyn where it opens into the Coachella Valley 503 Comment
  UC1951115  Acmispon nevadensis Scott D. White, Justin Wood 2009-5-21 12858 Riverside SAN JACINTO MOUNTAINS: Garner Valley, near abandoned duck ponds, S of Quinn Flat. USGS Idyllwild 7.5' Quad. Comment
  SBBG67449  Acmispon nevadensis var. davidsonii Mrs. J. D. Wright 1929-6-25 Riverside San Jacinto Mtns [probably near Idyllwild] Comment
  UCSB3228  Acmispon strigosus Krogen, Roger 1957-1 Riverside Whitewater Canyon, 2 mi. N of Hwy. 60-70 at Whitewater Comment
  UCR261509  Acourtia microcephala A. C. Sanders, Jeff Crain, Nina Kidd 2015-5-19 41731 Riverside Temesal Canyon, south of Glen Eden Rd. on the crest of an alluvial ridge, south of I-15 and Lee (Corona) Lake 384 Comment
  CLARK-A1528-4007  Adenostoma sparsifolium John C. Roos 1937-8-17 2405 Riverside San Jacinto Mountains 1066 Comment
  IRVC29859  Adenostoma sparsifolium Mark A. Elvin 2004-10-12 3812 Riverside S of Idyllwild, N of Mountain Center along Hwy 243. San Jacinto Moutnains 1524 Comment
  UCR129814  Adenostoma sparsifolium Fred M. Roberts 2003-7-11 5962 Riverside Santa Ana Mtns., just east of Bear Creek, 0.5 km SE Upper San Juan Campground 668 Comment
  UCR95944  Adenostoma sparsifolium Scott D. White 1996-8-1 4456 Riverside San Jacinto Mtns., Twin Pines area, just north of Twin Pines Road, c. 0.5 air mi. west of Twin Pines Ranch. 1143 Comment
  RSA495429  Adiantum jordanii Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-12 2955 Riverside Vail Lake area, Temecula Creek Cyn., just below Vail Lake Dam. 442 Comment
  UC219242  Agnorhiza ovata E. C. Jaeger 1921-6-14 1054 Riverside Barkers Meadow San Jacinto Mts. Comment
Read comments
Nov 6 2011
  JEPS36230  Agoseris grandiflora var. grandiflora W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1916 Riverside Van Deventer's Ranch (journey from Riverside to Santa Rosa Peak and Palomar) Southern California Comment
  UC1543181  Agoseris retrorsa Donald G. Nelson 1936-5-21 372 Riverside just n of meadow in valley just e of Hurkey Creek Camp; San Jacinto Mts., Mt. Thomas, Lake Hemet Comment
  POM147630  Agrostis pallens F. M. Reed 1926-5-20 5387 Riverside Summit of Rainbow Canyon, near San Diego County Line on Inland Highway. 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
  RSA740791  Agrostis stolonifera Scott D. White, Justin M. Wood 2008-7-9 12419 Riverside Johnson Meadow 1415 Comment
  UCR171136  Ailanthus altissima John F. Green 2005-5-17 s.n. Riverside Perris-Aguanga Basin, Markham Pit; Gravel pit on SE corner of Markham Street and Day Street, south of March Air Force Base 537 Comment
  UCR71881  Alchemilla arvensis Joe Di Bernardo 1992-4-6 92- 01 Riverside Sonoran (Colorado) Desert, Coachella Valley, Palm Desert, condominium complex at Mountain Shadows Golf Course Comment
  OBI8367  Aliciella latifolia subsp. latifolia Malcom McLeod, Dirk Walters, David Keil 1977-3-27 K 12055 Riverside Along Box Canyon Rd. ca. 17 mi. ENE of Mecca in Orocopia Mts. Rock walled canyon with very open stand of Cercidium, Dalea spinosa, Olneya, Larrea. Surrounding hillsides essentially unvegetated. 213 Comment
  OBI29474  Allionia incarnata David J. Keil, Melissa Luckow 1979-8-31 13150 Riverside Jctn of Box Cyn Rd and I-10 just S of exit ramp at wash crossing Comment
  RSA462624  Allionia incarnata Christopher Davidson, J. Jones 1980-4-4 9946 Riverside Orocopia Mts. West end of the mountains in a small canyon and wash almost due south of Oro Peak. 518 Comment
  RSA763987  Allionia incarnata Justin M. Wood, D. M. Ray 2010-10-21 2992 Riverside Chuckwalla Valley NE of Victory Springs and 0.9 km E of Kaiser Road on unmarked 4WD road. 198 Comment
  RSA776336  Allionia incarnata Duncan S. Bell, Amanda Turek 2010-4-10 819 Riverside Riverside Mountains; southern section of the mountain range; approximately 1 air mile southwest of Riverside Mountain Peak. 269 Comment
  UCR85162  Allionia incarnata A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16079 Riverside Coachella Valley/Santa Rosa Mtns., alluvial slopes at the foot of Rabbit Peak, below Sheep Canyon 12 Comment
  RSA778399  Allionia incarnata Amber Swanson 2011-10-9 650 Riverside Around the Hayfields ext N of Hwy I-10. 426 Comment
  RSA367021  Allium Ducelia Sobb 1937-04 s.n. Riverside Near Blythe. Comment
  POM263555  Allium fimbriatum var. fimbriatum J. C. Roos 1941-5-10 129 Riverside Pinyon Flats Camp, Santa Rosa Mountains. 1220 Comment
  CAS-BOT-BC131982  Allium haematochiton H. M. Hall 1901-6-1 2096 Riverside In the vicinity of Strawberry Valley 1371 Comment
  RSA70222  Allium haematochiton F. W. Peirson 1921-3-19 2394 Riverside 4 miles west of Beaumont, on road to Redlands. Comment
  SBBG55753  Allium haematochiton D. Keil, M. McLeod 1979-3-18 12872 Riverside St Hwy 71, Alberhill Junction Comment
  UC494721  Allium haematochiton Philip A. Munz 1932-3-24 12026 Riverside n Lake Elsinore 304 Comment
  UCR214123  Allium haematochiton A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37730 Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 518 Comment
  SEINET12048030  Allium haematochiton R. F. Thorne, Lathrop, E. 1975-1 45560 Riverside Santa Rosa Plateau, Rancho California, Mesa de Burro 610 Comment
  UC3087  Allium marvinii H. M. Hall June, 1901 2096 Riverside along water courses in the vicinity of Strawberry Valley 1371 Comment
  UCD169115  Allium marvinii Jeff B. Galvin; Diane Menuz 2009-5-1 89 Riverside San Jacinto Mtns foothills, Northwest foothills of San Jacinto Mtns foothills. North of Soboba Rd, off Poppet Flats Truck trail. 816 Comment
  UCR215368  Allium marvinii Fred M. Roberts 2006-5-11 6333 Riverside Peninsular Range; Santa Ana Mtns., vicinity of Elsinore Peak, along Main Divide Truck Trail, 0.7 km west of summit of Elsinore Peak 1006 Comment
Read comments
Dec 12 2013
  UCR27204  Allium munzii L. F. LaPre, E. B. Ellis 1982-4-24 s.n. Riverside Peninsular Range, Temescal Canyon at Indian Truck Trail (De Palmas Road). 349 Comment
  UCR42165  Allium munzii Steve Boyd 1986-4-22 1781 Riverside Gavilan Hills, Summit of Estelle Mountain. 841 Comment
  RSA0006686  Allium munzii Steve Boyd 1986-4-20 1725 Riverside Gavilan Plateau, Gavilan Hills: clay soil on hillside south of Harford Springs County Park. 616 Comment
  UCR15905  Allium parishii Steve Boyd 1978-4-22 780422- 07 Riverside Sonoran (Colorado) Desert, 5 mi north of the S entrance of Joshua Tree National Monument, near Pinto Basin Road Comment
  CAS-BOT-BC475412  Allium praecox Mrs. Wilder 1905-4-1 s.n. Riverside Riverside, Calif. Comment
  RSA507476  Allophyllum divaricatum Kathy Harper 1988-5-14 s.n. Riverside San Jacinto Mountains, along Hwy 243, 1-2 mi. below Mt. Edna turnoff. Comment
  POM49564  Allophyllum glutinosum P. A. Munz, I. M. Johnston 1924-7-29 8841 Riverside 6 miles SE of Poppet Flat, San Jacinto Mountains. 1524 Comment
  UCR68844  Allophyllum glutinosum Steve Boyd, T. S. Ross 1990-5-11 4623 Riverside Agua Tibia Mountains, Cleveland National Forest, base of Agua Tibia Mtn, east of Dripping Springs campground, south of Hwy 79 671 Comment
  GMDRC3497  Aloysia wrightii J. Andre, T. La Doux 2008-9-16 10685 Riverside Little San Bernardino Mountains: Joshua Tree National Park: along Bell Mtn Rd, atop Bell Mtn appox 0.3 mi. N. of radio tower. Queen Mountain USGS 7.5 min quad 34 deg. .35' N 116 deg. .017' W. Elev. 4458 ft. 1359 Comment
  RSA736738  Amaranthus albus Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10682 Riverside Soboba Indian Reservation- Indian Creek and adjacent uplands, from confluence w/ San Jacinto River to +/- 2 miles upstream. 534 Comment
  CAS-BOT-BC520444  Amaranthus blitoides A. C. Sanders; Jose Aguiar 2012-12-19 40532 Riverside Sonoran (Colorado) Desert: Coachella Valley, NE of Mecca above jct of Ave.62 and Johnson St. near Coachella Canal -7 Comment
  UCR159260  Amaranthus californicus A. C. Sanders, Kelly Volansky 2005-8-31 31589 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
  UCR92407  Amaranthus californicus F. M. Reed 1933-9-20 8098 Riverside San Jacinto Mtns., N shore of Hemet Lake 1525 Comment
  UCR21773  Amaranthus caudatus S. Day 1980-9-4 s.n. Riverside private residence in Riverside Comment
  RSA0099444  Amaranthus fimbriatus Duncan S. Bell, Evan Meyer 2014-10-29 7694 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
  RSA0106724  Amaranthus fimbriatus Duncan S. Bell 2011-9-30 2936 Riverside Northeastern section of the Arica Mountains; northwest section of Rice Valley; approx. 2 air miles southwest of the ghost town of Rice. 234 Comment
  UCR59715  Amaranthus fimbriatus A. C. Sanders 1989-9-19 9508 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
  CAS-BOT-BC13612  Ambrosia acanthicarpa Carl B. Wolf 1931-10-14 2459 Riverside Cabezon, San Gorgonia Pass. 518 Comment
  UCR176699  Ambrosia acanthicarpa R. D. Goeden 1966-10-27 s.n. Riverside Riverside, UCR Campus 366 Comment
  UCR109524  Ambrosia confertiflora R. D. Goeden, Don W. Ricker 1970-9-24 s.n. Riverside Moreno Badlands, W of Beaumont, south side of Hwy 60, 2 miles west of Jackrabbit Trail 686 Comment
  JEPS108703  Ambrosia dumosa C. Spurrier, M. J. Way 2001-6-14 6 Riverside Big Morongo Canyon Preserve, 5.6 km n of water company entrance on Kickapoo Trail 595 Comment
  LA94842  Ambrosia dumosa T. A. Geissman; 1966-3-12 TAG- 31266 -FDA Riverside Box Canyon, E of Mecca Comment
Read comments
Sep 20 2013
  OBI17101  Ambrosia dumosa Tracey Call 1962-4-6 2115 Riverside 4 mi w of Desert Hot Springs at rd jctn Comment
  POM8400  Ambrosia dumosa Mary F. Spencer 1920-4-7 784 -a Riverside Palm Canyon, Colorado Desert 183 Comment
  RSA792580  Ambrosia dumosa Aaron C. Sedgwick, Joella Simons Adkins 2012-11-8 161 Riverside Chuckwalla Valley - On DuPont Rd. The population is generally limited to within 30 ft. of the road. The population is scattered, but continues for several miles from the intersection with Chuckwalla Valley Rd. 168 Comment
  SFV11884  Ambrosia dumosa R. H. Swade 1963-12-7 s. n. Riverside Colorado Desert Open desert west of Snow Creek Road, about 3 miles south of Interstate 10 intersection with California State Highway 111. 366 Comment
  UCR128943  Ambrosia dumosa Chris E. True, K. Flemming 2003-9-26 s.n. Riverside Sonoran (Colorado) Desert, Canyon Spring, Orocopia Mtns. 372 Comment
  SEINET5710312  Ambrosia dumosa R. L. Smith 1960-1 9 Riverside At base of San Jacinto Mountains, 15 miles north of Palm Springs.; Palm Springs Comment
  UCR261173  Ambrosia pumila A. C. Sanders, Jeff Crain, Nina Kidd 2015-5-19 41727 Riverside Elsinore Trough, north of Elsinore on east side of Baker St., 0.28 km east (74 deg. ) of large water tank above Baker, above a forking dirt road 392 Comment
  CAS-BOT-BC273026  Ambrosia salsola Lewis S. Rose 1962-3-2 62013 Riverside La Quinta 3 Comment
  CAS-BOT-BC273030  Ambrosia salsola Roxana S. Ferris 1953-3-9 12597 Riverside Access road to Los Angeles Aqueduct up Berdoo Canyon, about 2 miles northeast of Indio-Desert Hot Springs road Comment
  HSC87232  Ambrosia salsola Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. Ross 1988-3-10 2132 Riverside N end of the Palen Mtns., 2 mi. W of Palen Pass 300 Comment
  SDSU1709  Ambrosia salsola Marjorie Collier 1951-3-25 9145 Riverside Palm Canyon, 5 miles south of Palm Springs. Comment
  SBBG8467  Ambrosia salsola var. salsola H. and M. Dearing 1936-12-25 2334 Riverside Long Cyn, Colorado Desert Comment
  SD216462  Ambrosia salsola var. salsola Carol R. Annable 1995-3-10 2263 Riverside 1.6 kilometers South of Lake Cahuilla County Park. Comment
  RSA0034425  Amelanchier utahensis Carl B. Wolf 1931-5-11 s.n. Riverside Near Pipe Creek, above Hemet Valley, San Jacinto Mountains. 1677 Comment
  SD136851  Amorpha californica Steve Boyd, Tim Ross 1992-5-15 7403 Riverside Southern Santa Ana Mts., San Mateo Canyon Wilderness Area, major lateral drainage north of Bear Canyon, junction of the Tenaja & Morgan Trails, west of Round Potrero, along stream in understory of oak woodland in canyon bottom 669 Comment
  CAS-BOT-BC177258  Amorpha fruticosa Rimo Bacigalupi 1935-6-27 2357 Riverside Above head of Palm Canyon and close to north-eastern base of Santa Rosa Mountain, Palm to Pines Highway Comment
  RSA568712  Amorpha fruticosa Walter Wisura, Bart O'Brien, Lorrae Fuentes 1992-9-20 4831 Riverside Santa Rosa Mtns., 0.5 miles S of Hwy 74 along rd. to Toro Peak. Comment
  SD248414  Amorpha fruticosa A. C. Sanders 2014-4-23 41058 Riverside Peninsular Range: Temescal Valley, along Hostettler Rd. near Temescal Canyon Road and I-15, at bend in Hostettler Rd. 363 Comment
  UC454658  Amorpha fruticosa I. J. Condit 1910-6-24 Riverside San Jacinto River Valley Comment
  CSUSB1576  Amsinckia intermedia Rita Gibbons 1975-6-12 S. N. Riverside 3 miles north of Highway 60 on Heacock Ave., Sunnymead. Comment
  SEINET7073333  Amsinckia intermedia A. G. Vestal 1963-4-29 s.n. Riverside South Mesa on Tenaja Grande (Tenaja Trunk Road), Santa Ana Mountains. Cleveland National Forest. Coordinate datum: NAD27. Comment
  UCR224456  Amsinckia intermedia A. C. Sanders, T. B. Salvato 2011-3-28 38808 Riverside Peninsular Range; Perris-Aguanga Basin Region, Menifee Valley, between Sun City and Perris, from McLaughlin & Evans roads intersection east to I-215 Fwy 434 Comment
  UCR241216  Amsinckia intermedia Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 46 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper Hathaway Canyon 884 Comment
  UCR279530  Amsinckia intermedia A. C. Sanders, Jim Malusa 2017-3-25 43000 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Arroyo Seco, 3.5-4 km south of Augustine Pass, 100-200 m S of Bradshaw Trail, c. 1.5 km N of Imperial Co. line 652 Comment
  POM96828  Amsinckia intermedia F. M. Reed 1926-5-8 5331 Riverside Near summit of Temescal Canyon highway. Comment
  RSA0089918  Amsinckia menziesii R. F. Thorne, Drs Fosberg, M. H. Sachet, Charles C. Herbst 1983-4-23 55446 Riverside San Bernardino Mountains: side canyon on W side of Whitewater Canyon, ca. 3.3 miles N of Whitewater post office. 595 Comment
  SD244092  Amsinckia retrorsa A. C. Sanders, Timothy W. Chumley 2013-3-28 40708 Riverside Peninsular Range: Alberhill, along Lake Street, 1.45 km south of I-15 near old clay mines (Alberhill 7.5'Q) 395 Comment
  HSC82821  Amsinckia tessellata A. C. Sanders, B. Pitzer, D. Charlton 1986-3-1 6015 Riverside Chuckwalla Valley, 1 mi. W of Hayfield Lake, 2 mi. SW of the pumping station on small cutoff road from Hayfield Rd. to the dirt road to the Colorado River Aqueduct 427 Comment
  RSA0091471  Amsinckia tessellata Duncan S. Bell 2010-4-1 664 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
  UC218011  Amsonia tomentosa P. A. Munz and D. Keck Apr 9 1922-Apr 12 1922 4843 Riverside vicinity of Corn Springs Corn Springs; Colorado Desert, Chuckwalla Mts. 762 Comment
  SDSU13948  Anagallis arvensis Michael G. Simpson, Claudia Luke & Shane Waddell 2000-5-23 2134 Riverside Santa Margarita Ecological Reserve (SDSU), southeastern region, ca. 1/4 mile north of El Valle meadow. 646 Comment
  UC729851  Anemopsis californica Carl B. Wolf 1929-5-31 3738 Riverside 1 mi nw of Santa Ana River (6 mi from Corona on Chino Road) Comment
  JOTR16558  Anisocoma acaulis Vanderspek & Nolte 1966-5-13 64541 Riverside Joshua Tree National Park. EUREKA PEAK 1682 Comment
  JOTR35463  Anisocoma acaulis Harding, Mitzi, M. Wheeler, K. Callahan, C. Barrows 2013-4-25 64 Riverside Joshua Tree National Park. Little San Bernardino Mtns; W. of Juniper Flats (stop4) Comment
  CAS-BOT-BC79937  Antennaria microphylla W. F. Parish 1880-8-1 584 Riverside Summit San Jacinto Mt. Comment
  CLARK-A1528-5006  Antennaria rosea John C. Roos 1937-8-18 2409 Riverside San Jacinto Mountains 2743 Comment
  RSA544294  Anthemis cotula Steve Boyd, Timothy S. Ross 1991-6-14 6353 Riverside Warm Springs Creek at NE end of Hogbacks ridge from Alamos Rd. S to confluence w/ Adobe Springs tributary, 2-3 miles NW of Murrieta Hot Springs. Comment
  UCR104174  Anthemis cotula Scott D. White 1997-5-25 5242 B Riverside Perris Basin, Winchester area, roadside of Simpson Ave. <1 mi. west of intersection with Winchester Rd. 445 Comment
  UCR35226  Antirrhinum coulterianum L. B. Ziegler 1967-5-18 134 Riverside San Jacinto Valley, side canyon off lower Bautista Canyon 534 Comment
  RSA703397  Antirrhinum filipes LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda L. Worlow 2005-2-17 1449 Riverside Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  SBBG128625  Antirrhinum kelloggii S. R. Hill, A. C. Sanders 2001-5-4 33716 Riverside N side of Avenida del Oro, just E of jct with Sandia Crk Drive, 2 mi W of jct of Rancho California Rd and Interstate 15; E rim, Santa Rosa Plateau 478 Comment
  RSA689388  Antirrhinum nuttallianum Scott D. White 2003-6-9 9525 Riverside Perris Basin: Northeast corner of Devonshire Ave. and Warren Rd., immediately south of Tres Cerritos. 473 Comment
  POM354918  Antirrhinum nuttallianum subsp. nuttallianum Anstruther Davidson 1892-05 s.n. Riverside Banning. Comment
  UC1922739  Apium graveolens Scott D. White, Angelia Carey 2004-5-7 10317 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent foothills. Lake Fulmore 7.5' Quad. Comment
Read comments
May 6 2020
  UC878883  Apocynum cannabinum C. Epling and Wm. Robison 1935-6-30 Riverside between Pine Flat Camp and Fuller's Mill (Mt. San Jacinto); Mt. San Jacinto Comment
  SD28078  Aquilegia formosa Carl B. Wolf 1932-5-24 3652 Riverside No. base of San Jacinto Mts. Snow Creek Canyon. 1 mi. above fish hatchery 792 Comment
  POM13572  Arabis perennans P. A. Munz 1922-6-28 5876 Riverside Santa Rosa Mountains. [San Jacinto Mountains] 2409 Comment
  UCR47280  Arabis pulchra D. C. Hawks 1987-5-16 s.n. Riverside Terwilliger Valley, S of Anza, Terwilliger Road, 0.9 mi. south of intersection with Wellman Road 1189 Comment
  UCR207369  Araujia sericifera O. F. Clarke 2008-8-11 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  UCR193729  Arceuthobium campylopodum A. C. Sanders, Tim Thomas, T. B. Salvato, Mitch Provance 2008-7-1 35657 Riverside Peninsular Range; San Jacinto Mtns., May Valley, slopes west of Herkey Creek and north of Bonita Vista Rd., SSW of Fleming Ranch 1524 Comment
  SEINET2117589  Arceuthobium cyanocarpum R. L. Mathiasen, C M. Daugherty 2009-8-5 09 -27 Riverside North slope of Tahquitz Peak. 0.3 km west of the jct. of the Tahquitz Peak Trail and the Tahquitz Valley Trail along the trail to Tahquitz Peak. 2620 Comment
  RSA629390  Arctostaphylos glandulosa Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19514 Riverside Southwest of Wildomar, off Hacienda Rd., north of Avenida La Cresta, west of Clinton-Keith Rd., southern Santa Ana Mtns. 820 Comment
  RSA629359  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15544 Riverside Rd to Elsinore Pk., 1 km S of Elsinore Pk. Santa Ana Mtns. 950 Comment
  POM254917  Arctostaphylos glandulosa subsp. zacaensis W. Pequegnat 1940-4-13 s.n. Riverside Modjeska Peak, Santa Ana Mts. Comment
  RSA631841  Arctostaphylos glauca Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20170 Riverside Truck trail on north-face of Santa Rosa Mountain, ca. 5 km south of Pinyon Pines, Santa Rosa Mountains. 1450 Comment
  RSA631852  Arctostaphylos glauca Jon E. Keeley 1992-7-16 16604 Riverside Hwy 371 & Burnt Valley Rd. San Jacinto Mtns. 1250 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
  UC1366100  Arctostaphylos glauca K. R. Montgomery 1969-9-7 69 -24 Riverside Wilson Valley Rd 18 mi s Hemet 1219 Comment
  UCR139049  Arctostaphylos glauca D. L. Banks 1997-3-1 1346 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation. Pechanga Creek, east of the'Fiesta Grounds' to the spring on the northern fork of Pechanga Creek at the eastern end of the Reservation 427 Comment
  RSA633557  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-9-27 21790 Riverside Dirt road to Santa Rosa Mountain, 12.3 km southeast of Highway 74, northwest side of Santa Rosa Mountains. 2190 Comment
  RSA633593  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16690 Riverside Road to Santa Rosa Mountain (7S02), 12.3 km south of Highway 74. 2190 Comment
  RSA633648  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20124 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  RSA633704  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16674 Riverside Road to Santa Rosa Mountain (7S02), 9.3 km south of Highway 74. 1990 Comment
  RSA633727  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16628 Riverside Road to Santa Rosa Mountain (7S02), 2.5 km south of Highway 74. 1640 Comment
  POM305862  Arctostaphylos pringlei subsp. drupacea Henry J. Ramsey, Henry J. Ramsey 1938-4-22 1158 Riverside Santa Rosa Mts. Comment
  RSA1789  Arctostaphylos pringlei subsp. drupacea C. B. Wolf 1931-5-11 1948 Riverside Near Pipe Creek, above Hemet Valley, San Jacinto Mountains. 1677 Comment
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Mar 24 2011
  UC922082  Arctostaphylos pringlei subsp. drupacea Frank W. Gould 1943-4-18 2135 Riverside mountain slopes 8 mi e Idlewild Comment
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Sep 29 2011
  SDSU2818  Arctostaphylos pringlei var. drupacea F. Young Berg 1933-8-28 1218 Riverside Near Inspiration Pt. near Idyllwild Pines, San Jacinto Mts. Comment
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Mar 10 2014
  GMDRC6546  Arctostaphylos pungens J. M. Andre 2012-6-15 30498 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
  RSA293530  Arctostaphylos pungens C. W. Tilforth, W. Wisura 1979-8-8 1903 Riverside Along hiway 74, 7.5 mi. south-east of Lake Hemet turn-off, Garner Valley Comment
  SD229131  Arctostaphylos pungens Dick Schwenkmeyer 2012-3-26 680 Riverside Mt. San Jacinto area: Lake Hemet (site #4), Highway 74, sloping hillside 1317 Comment
  RSA636007  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19554 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636024  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18794 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  RSA105974  Argemone munita subsp. munita Gerald B. Ownbey, Findley Ownbey 1954-8-7 2178 -a Riverside 9.7 mi., s.e. of Idyllwild, Hemet Valley road; 1372 Comment
  RSA652543  Argemone munita subsp. munita G. Foster 1961-4-30 s.n. Riverside Palm Canyon, Palm Springs. Comment
  RSA722445  Argemone munita subsp. munita J. R. Bruff 1928-4-3 181 Riverside 13 miles W of Desert Center. Comment
  CAS-BOT-BC207127  Argythamnia lanceolata S. B. Parish 189 (year not completed on sheet) 4141 Riverside Palm Springs, Colorado Desert Comment
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Sep 11 2019
  UC1930044  Aristida adscensionis Scott D. White 2001-4-3 8232 Riverside COLORADO DESERT: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn. I-10 / SR 111. Bajadas and washes adjacent to powerline access roads at unnamed freeway exit accessing pump station. Comment
  UCR198199  Aristida adscensionis Michael Honer, L. Hulse 2004-4-3 1916 Riverside Colorado Desert, Little San Bernardino Mountains, Rockhouse Canyon c. half mi north of intersection with Fargo Canyon 610 Comment
  RSA385010  Aristida adscensionis var. modesta Christopher Davidson, J. Jones 1980-4-4 9950 Riverside West end of the Orocopia Mountains in a small canyon and wash almost due south of Oro Peak., Approx. 33 deg 37'N, 115 deg 53'W. Comment
  RSA777401  Aristida purpurea var. fendleriana Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-23 834 Riverside Chuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.' Old mine access road. 534 Comment
  UCD56533  Aristida purpurea var. fendleriana Peter H. Raven 1958-5-18 13003 Riverside San Jacinto Mountains, Pinyon Flats. Comment
  UCD56548  Aristida purpurea var. nealleyi H. S. Yates 1937-6-27 6721 Riverside head of Deep Canyon. 1219 Comment
  UCR260314  Aristida purpurea var. nealleyi A. C. Sanders, Jim Malusa 2015-3-10 41372 Riverside Sonoran (Colorado) Desert, north end of Chocolate Mountains, Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range 610 Comment
  UCR19682  Aristida purpurea var. parishii John C. Roos 1940-2-17 891 Riverside Peninsular Range, Reche Canyon 'Plateau 457 Comment
  RSA192014  Artemisia californica E. W. Lathrop 1965-12-9 6037 Riverside 5 miles southwest of Murrieta on the De Luz truck trail. 457 Comment
  UCR48494  Artemisia californica Steve Boyd 1985-12-24 1194 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  UCR19688  Arundo donax John C. Roos 1966-9-26 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley; Indio 3 Comment
  SEINET10513658  Arundo donax David B. Dunn 1947-2-9 Dunn 2851 Riverside Pushawall canyon. Indio hills. By lower part of stream. Comment
  SD247302  Asclepias albicans Andy Sanders, Jim Malusa 2015-3-10 41386 Riverside Sonoran (Colorado) Desert: north end of Chocolate Mountains, eastern canyon at Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range. 611 Comment
  JEPS5154  Asclepias subulata W. L. Jepson 1914-5-18 6030 Riverside County Well n Indio; Colorado Desert, County Well Comment
  RSA0087461  Asclepias subulata Sarah J. De Groot, Amy Rouillard 2015-9-15 7574 Riverside Along Eagle Mountain Road north of I-10, at large wash crossing. West of Desert Center, western Chuckwalla Valley. 314 Comment
  SEINET12518425 Image available Asclepias subulata Mark Fishbein, Frankie Coburn, Danny Fuller 2016-1 7547 Riverside Along US Hwy 95 at jct Lonesome Dove Rd, 18 km north-northeast of jct I-10 at Blythe, west base of Big Maria Mountains, Colorado River valley. 93 Comment
  CAS-BOT-BC65781  Aspidotis californica Munz; Harwood 1920-2-28 3236 Riverside 2 mi S.E. of Corona 274 Comment
  RSA160569  Aster subspicatus J. D. Olmsted 1959-9-23 1017 Riverside San Jacinto River crossing by Lakeview Rd. from US 395 NW of Lakeview Mts 427 Comment
  CAS-BOT-BC154110  Astragalus N. Aitkenhead 1977-1-31 s.n. Riverside ~1 mi E. of junct. of Dillon Rd & T/L in N. Palm Springs Comment
  CAS-BOT-BC177461  Astragalus aridus Lewis S. Rose 1937-4-10 37155 Riverside 3 miles se. of Indio Comment
  CAS-BOT-BC177528  Astragalus bicristatus Elizabeth McClintock 1965-6-25 s.n. Riverside Santa Rosa Mountain, a short distance below summit Comment
  JEPS83135  Astragalus coccineus R. P. Allen 1935-3-24 255 Riverside Eagle Mountains Comment
  UCR116420  Astragalus coccineus A. C. Sanders 1974-1 00308 Riverside Santa Rosa Mtns., south of Hwy 74 near Pinyon Flats, along the Cactus Spring Trail between the dolomite mine and Horsethief Creek 1220 Comment
  CAS-BOT-BC178437  Astragalus douglasii var. parishii Barbara Ertter; Jeffrey Strachan 1980-5-21 3484 Riverside Santa Rosa Mt. Road (Forest Road 7S02) ca 2 miles south of Highway 74 (Pines to Palms Highway), rivulets on SE slope. 1584 Comment
  RSA605934  Astragalus douglasii var. parishii R. S. Woglum 1937-5-22 576 Riverside Santa Rosa Mountains. Comment
  UCR137362  Astragalus filipes John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  UCR214865  Astragalus insularis var. harwoodii A. C. Sanders 2010-3-15 37394 Riverside Sonoran (Colorado) Desert, pass between Chuckwalla Valley and Palo Verde Mesa, south of I-10 between the Mule and McCoy Mountains, c. 12 miles WSW (264 deg. ) of Blythe 152 Comment
  SDSU7941  Astragalus lentiginosus K. Larson 1975-4-24 1528 Riverside 10 miles northwest Palm Springs Creek rd. Comment
  UCR10261  Astragalus lentiginosus Paul Currie 1969-1 25 Riverside Sonoran (Colorado) Desert, vcinity of Banning [highly doubtful, probably closer to Palm Springs -- ACS] 305 Comment
  HSC66565  Astragalus lentiginosus var. coachellae Christopher Davidson, A. P. Romspert, H. Surprenant 1979-4-29 7815 Riverside W of Indio, 3 mi. E of Date Palm Dr. 15 Comment
  POM1694  Astragalus lentiginosus var. coachellae I. M. Johnston 1917-4-4 1065 Riverside Whitewater. Comment
  UCR198172  Astragalus lentiginosus var. variabilis Michael Honer, Dave Silverman 2005-3-18 2100 Riverside Sonoran (Colorado) Desert, Palen Valley, c. 3 mi due east of Desert Center Airport 134 Comment
  JOTR01059  Astragalus lentiginosus var. variabilis Cole, James E. 1941-5-2 671 Riverside Joshua Tree National Park. LOST HORSE VALLEY 1310 Comment
  CAS-BOT-BC178060  Astragalus nuttallianus S. B. Parish 1896-4-1 s.n. Riverside Palm Springs, Colorado Desert Comment
  PASA2744  Astragalus pachypus var. jaegeri Frank W. Peirson 1922-4-29 2950 Riverside 1 mile south of Dripping Spring, Temecula River 518 Comment
  SD87604  Astragalus palmeri F. W. Peirson 1921-3-21 4751 Riverside Gordon Trail, Palm Canyon to San Jacinto Mountains 1220 Comment
  CAS-BOT-BC192822  Astragalus pomonensis M. E. Jones 1882-4-24 3166 Riverside San Jacinto Comment
  POM319686  Astragalus pomonensis Patricia Wilder 1971-5-13 4947 Riverside Prado Flood control Basin; along bank at east end of top of Prado Dam. 213 Comment
  RSA415662  Astragalus pomonensis H. E. Hasse 1892-07 s.n Riverside San Jacinto. Comment
  UC863012  Astragalus pomonensis C. B. Clokey, I. W. Clokey and B. C. Templeton 1930-4-15 4634 Riverside Perres-Gavilan Peak 600 Comment
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Jul 5 2010
  UC917881  Astragalus pomonensis Frank W. Gould 1943-4-18 2155 Riverside near junction 3 mi w Beaumont; w of Beaumont Comment
  UCR238090  Astragalus pomonensis Mark A. Elvin, Julie M. Vanderwier, Frank Sartuche 2002-5-16 2048 Riverside Peninsular Range; Agua Tibia Mtns., Pechanga Indian Reservation, nameless drainage/wash south of Pala Rd. 335 Comment
  UCR187472  Athyrium filix-femina Diane Menuz, Angela Hyde 2006-8-24 236 Riverside Peninsular Range; San Jacinto Mtns, North Fork San Jacinto River c. 100 m below FS Rd. 5S09, below Indian Mountain 1331 Comment
  UC811445  Athyrium filix-femina var. cyclosorum P. A. Munz 1922-7-6 6030 Riverside n fork of Tahquitz Creek; San Jacinto Mts 2225 Comment
  RSA0086760  Athysanus pusillus R. G. Swinney 1967-5-26 11729 Riverside Snow Creek. 335 Comment
  RSA522711  Athysanus pusillus Steve Boyd, L. Arnseth, Timothy S. Ross 1990-3-29 3897 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
  UCR20810  Athysanus pusillus A. C. Sanders 1980-4-17 1343 Riverside San Jacinto Mtns, Pine Meadow in upper Garner Valley 1433 Comment
  UCR166549  Atrichoseris platyphylla Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10885 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  UCSB9777  Atrichoseris platyphylla Haller, John 1958-3-22 Riverside Immediately S. of Hwys 60-70, 5.8 miles E. of Desert Center Comment
  POM13710  Atriplex canescens P. A. Munz 1922-4-30 5125 Riverside Hemet Butte. Comment
  RSA451005  Atriplex canescens Stephen M. Beckstrom-Sternberg 1985-9-13 1038 Riverside Living Desert Reserve, Palm Desert Comment
  UCR33640  Atriplex canescens Sears 1978-4-12 1180 b Riverside Sonoran (Colorado) Desert, 8 mi northeast of Desert Center 159 Comment
  SEINET3930650  Atriplex canescens var. laciniata Howard C. Stutz 1977-11-18 8193 Riverside Indio.; 0 Comment
  RSA532562  Atriplex coronata var. notatior D. E. Bramlet 1991-4-29 2078 Riverside 6.5 km west of Hemet and some 350m south of Florida and 550m west of Warren. The population is some 50m east of MWD canal. 500 Comment
  UCR112319  Atriplex coronata var. notatior A. C. Sanders, K. C. Rose 1998-5-21 21866 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
  UCR85573  Atriplex coronata var. notatior Julie A. Greene 1993-6-11 1361 Riverside San Jacinto Valley, San Jacinto Wildlife Area, north side of San Jacinto River levee, west of Davis Road 436 Comment
  UCR70541  Atriplex davidsonii D. E. Bramlet 1991-6-20 2200 Riverside Perris-Aguanga Basin region, San Jacinto Valley, San Jacinto Wildlife Area: c. 8m east of Davis Rd & 150 m north of the San Jacinto River levee. Old river bed beside the channelized area of the river. 475 Comment
  SD175810  Atriplex elegans R. E. Riefner Jr. 2006-8-2 06 350 Riverside City of Corona, southeast ca. 0.75 mile from Cajalco Rd. and Temescal Wash; south ca. 1.5 mile of Blue Diamond Quarry. 310 Comment
  POM278754  Atriplex lentiformis subsp. breweri Grant D. Brown 1950-12-2 580 Riverside Cajalco Resevoir, SE; Cajalco Canyon. 442 Comment
  RSA760984  Atriplex polycarpa Thomas Stoughton, Jacqueline McConnaughy, Andrew Monks, M. Volke 2010-4-20 146 Riverside Hwy 177. N of Desert Center and Desert Lily Sanctuary. E of Joshua Tree National Park border. 274 Comment
  UCR131023  Atriplex polycarpa Karen Kirtland 1998-11-6 s.n. Riverside Sonoran (Colorado) Desert, sand and gravel mine c. 8 miles (airline) north of Blythe, SW of Big Maria Mtns. on Midland Road 137 Comment
  UCR35146  Atriplex rosea L. B. Ziegler 1967-8-29 209 Riverside San Jacinto Mtns, Hemet [Garner] Valley 1372 Comment
  UCR59799  Atriplex serenana Jeri Hirshberg 1989-7-20 s.n. Riverside Vicinity of Lake Skinner: drainage west of dam Comment
  RSA602490  Atriplex suberecta P. J. MacKay 1996-10-3 23 Riverside Menifee Valley: SE corner of Hwy 215 and Newport R., adjacent to Newport, gully behind Ralph s shopping center. 434 Comment
  RSA676064  Atriplex suberecta Scott D. White 2001-6-19 8593 Riverside Sun City: Quail Valley east of Canyon Lake and west of Goetz Road. 442 Comment
  UCD97690  Atriplex suberecta A. C. Sanders; K. C. Rose 1998-5-21 21854 Riverside Hemet; west of town, E of the canal, S of Hwy 74 (Florida) and 1/4 mile W of Warren Road. 457 Comment
  UCR174340  Avena barbata A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-22 32501 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
  RSA0042214  Avena fatua Margaret Murphy 1983-4-15 0008 -A Riverside Moreno Acres of the unincorporated area known as Sunnymead. North section of parcel 475-090-006, lot 20. Comment
  RSA586491  Avena fatua D. L. Banks, Steve Boyd 1995-5-9 321 Riverside NW Palomar Mountains; Agua Tibia Mountains; N of the Cleveland National Forest and the Agua Tibia Wilderness Area; N slope of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area;, W of Woodchuck Campground. 732 Comment
  CLARK-A1528-1620  Baccharis brachyphylla John C. Roos 1946-9-14 3008 Riverside San Jacinto Mountains 1066 Comment
  JOTR32850  Baccharis brachyphylla La Doux, Tasha, E. Babich, M. Brown 2008-9-30 1169 Riverside Joshua Tree National Park. Little San Bernardino Mountains, east of Queen Mountain, near north entrance to park; basalt rocky slopes 946 Comment
  RSA614091  Baccharis emoryi A. C. Sanders, C. L. Sanders 1994-12-4 15882 Riverside Salton Trough: Dos Palmas oasis area, San Andres palm grove, 1.75 km (1.1 mi) WSW of Rancho Dos Palmas., Marked ''seep'' on Durmid 7.5' Quad. -23 Comment
  UCR121891  Baccharis pilularis Ian G. Gillespie 2001-5-7 81 Riverside East side of Santa Ana Mountains, Temescal Valley Area, also known as Sycamore Canyon Area. North of Indian Truck Trail, in drainage off of De Palma Road. Heavy construction currently underway in adjacent areas 335 Comment
  GMDRC6585  Baccharis salicifolia J. M. Andre 2012-6-15 30547 Riverside San Jacinto Mountains: west slopes of range along Poppet Flat Rd, Poppet Creek canyon, 3.2 mi. west of Hwy 243 1022 Comment
  RSA0120019  Baccharis salicifolia Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-24 9070 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
  UCR216230  Baccharis salicifolia Mike Bell 2008-4-27 015 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau Ecological Reserve, Adobe Loop Trail 538 Comment
  UCR21968  Baccharis salicifolia Steve Boyd 1980-5-5 209 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  SBBG96142  Baccharis salicina O. F. Clarke 1970-10-20 Riverside UC Riverside Botanic Garden, on the campus of UC Riverside Comment
  SEINET2045190 Image available Baccharis sarothroides B. Pitzer 1996-11-11 2931 Riverside Orocopia Mountains: Salt Creek Wash, at intersection w/SR211, 4 rd. mi. S of Bob's Cabin. Hayfield 15'USGS Quad.:T7s,R14ESW/4, S7 274 Comment
  CAS-BOT-BC99873  Baccharis sergiloides L. A. Greata 1904-9-1 s.n. Riverside Banning Comment
  IRVC513  Baccharis sergiloides R. H. Whittaker, W. A. Niering 1963-6-7 SJ 283 Riverside slope SE-5o wash, sand alluvial soil. 1037 Comment
  UCR41317  Baccharis sergiloides N. M. Fellows 1984-11-12 33 Riverside San Jacinto Mtns., Oasis de los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the N foot of San Jacinto Mtn. 489 Comment
  JOTR34045  Bahiopsis parishii La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2946 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; above trail to Lost Horse Mine on basalt outcrop with scree slopes Comment
  RSA189411  Bahiopsis parishii L. S. Rose 1966-12-14 66104 Riverside Chino Canyon, 3 mi. W of Palm Springs. 671 Comment
  RSA23272  Bahiopsis parishii Ernest Braunton 1940-03 2032 Riverside Berdoo Canyon. Comment
  SBBG54311  Bahiopsis parishii B. Gustafson 1977-4-7 5576 Riverside Whitewater Cyn Rd exit from Interstate 10, ca. 2.5 mi W of jct Interstate 10 with State 62 near start of Pacific Crest Trail 609 Comment
  CAS-BOT-BC99968  Baileya pauciradiata Roxana S. Ferris 1953-3-9 12598 Riverside Sandy flat near junction of U.S. 60 & 70 with Desert Hot Springs Road Comment
  JOTR32372  Baileya pleniradiata La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2484 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam loop trail, near trailhead; Sandy wash and open flats among boulder outcrops (Stop 2) 1298 Comment
  SBBG7793  Baileya pleniradiata K. K. Muller 1958-3-22 921 Riverside ca. 5.5 mi E of Desert Center Comment
  UCR275528  Bassia hyssopifolia A. C. Sanders, Karen Kirtland 2016-9-23 42627 Riverside San Jacinto Valley, edge of Mystic Lake at duck hunting ponds below abandoned dairy south of Gilman Springs Rd. between Jack Rabbit Tr. and Eden Hot Springs Rd. 434 Comment
  POM122202  Bebbia juncea Marcus E. Jones 1926-2-16 s.n. Riverside Near Shaver's Well, near Mecca, Colorado Desert. 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
  RSA696874  Bebbia juncea J. Russell Bruff 1928-4-1 77 Riverside Whitewater Comment
  RSA709803  Bebbia juncea A. C. Sanders 2004-5-12 27891 Riverside Elsinore Basin Region: Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek. 378 Comment
  UCR136262  Bebbia juncea A. C. Sanders 2004-6-20 28231 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., wash near I-15 & Temescal Cyn. Rd., west of main clay pit 305 Comment
  UCR21998  Bebbia juncea Steve Boyd 1980-7-12 332 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  UCSB6400  Bebbia juncea Graney, Don 1953-5-20 Riverside 11 miles east of Indio, Colorado Desert Comment
  CAS-BOT-BC100145  Bebbia juncea var. aspera P. Munz; L. Street 1919-5-7 2720 Riverside Tahquitz [Canon] Canyon Comment
  SDSU6472  Bebbia juncea var. aspera H. Wedberg 1962-7-28 983 Riverside About 7 miles from Hemet on the road to Moutain Center, in wash opposite the 2000' sign. Comment
  UCR26368  Berberis dictyota A. C. Sanders 1981-7-11 2212 Riverside San Jacinto Mtns, Live Oak Spring at the head of Live Oak Canyon which is a tributary to Palm Canyon. 1677 Comment
  CAS-BOT-BC207048  Bernardia incana Annie M. Alexander 1941-5-10 2144 Riverside 3 mi NE Cottonwood Spring, Eagle Mts. 1036 Comment
  RSA276745  Bernardia incana John F. Emmel 1978-2-27 589 Riverside Eagle Mountains; canyon 0.4 air mile due South of Conejo Well. 1067 Comment
  UCR191546  Beta macrocarpa A. C. Sanders 2008-4-15 34892 Riverside Peninsular Range, NE edge of city of Elsinore, off Nichols Rd. along Baker St., near Durant Siding 383 Comment
  CAS-BOT-BC140664  Bidens laevis Oleg Pryadko 2008-5-2 058 Riverside San Bernardino Valley Region: western Riverside near Pedley, Hidden Valley Wildlife Area, c. 1200 ft. south of Clay St. and General Road, 1000 ft. east of Van Buren Blvd., north bank of Santa Ana River 208 Comment
  UCR116865  Bloomeria crocea A. C. Sanders, Steven R. Hill 2001-5-4 24124 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon area west of Del Rey Rd., hills on both sides of gas pipeline route 390 Comment
  SBBG72283  Boechera arcuata M. N. Ackley -May-1929 Riverside Tahquitz 2438 Comment
  RSA770620  Boerhavia Robert F. Thorne 1966-10-15 41813 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway. Comment
  UCR101519  Boerhavia coulteri Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10051 A Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, NW base of the range, south of Eagle Mine Rd exit on Hwy I-10. 427 Comment
  UCR89713  Boerhavia coulteri J. M. Stewart 1990-9-23 655 Riverside Sonoran (Colorado) Desert, Interstate Hwy 10, 1.5 mi. west of Wiley Well Road. Comment
  UCR20339  Boerhavia intermedia John C. Roos, L. Roos 1952-10-18 5901 Riverside Little San Bernardino Mtns, Hidden Valley campground 1220 Comment
  RSA0009686  Boerhavia intermedia Marcus E. Jones 1929-9-16 24796 Riverside Hayfield, Near Desert Center. Colorado Desert. Comment
  UCR265474  Boerhavia triquetra var. intermedia Jordan Zylstra 2014-8-17 14022 Riverside Santa Rosa Mountains, vicinity of Pinyon Flat and head of Cactus Springs Trail, south of Hwy 74 1280 Comment
  RSA0076343  Boerhavia wrightii A. C. Sanders, T. B. Salvato 2012-10-12 40402 Riverside Chuckwalla Mountains, Graham Pass, 7.6 km (c. 4.5 mi.) above the road to Chuckwalla Spring on Graham Pass Rd. 387 Comment
  RSA608165  Boerhavia wrightii Steve Boyd, Valerie Soza, Tasha La Doux 1997-10-13 10051 C Riverside Sonoran (Colorado) Desert Chuckwalla Mtns, NW base of the range, south of Eagle Mine Rd exit on Hwy I-10. 426 Comment
  RSA0125183  Bouteloua aristidoides Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8756 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting on the Martinez Slide to the north of Toro Canyon, approximately 4.5 air miles east northeast of the summit of Martinez Mountain. 230 Comment
  UCR264213  Bouteloua aristidoides A. C. Sanders, Jim Malusa 2015-9-10 41861 Riverside Sonoran (Colorado) Desert, Bradshaw Trail, 0.85 mi. SE of its junction with Summit Rd. in Salt Creek Canyon, at wash crossing, at edge of Chocolate Mountains Aerial Gunnery Range 480 Comment
  RSA0022745  Bouteloua aristidoides var. aristidoides April Garbat, Deidre Conocchioli 2013-9-12 124 Riverside East of Alligator Rock: From I-10 at Desert Center, head south on CA-177 to BLM Rd 394 (dirt). Collection site is 1.1 miles SW of interstate exit ramp. 334 Comment
  UCR2191  Bouteloua barbata S. B. Parish 1902-6-28 8102 Riverside Sonoran (Colorado) Desert, Salton Basin, Mecca -58 Comment
  SEINET3240176  Bowlesia incana Rea Raymond 1962-1 176 Riverside North of Prado Dam-4 miles on Highway #71.: Santa Ana Mountains 305 Comment
  UCR266813  Bowlesia incana Mitch Provance, Matt Amalong 2015-3-25 315- 31 Riverside Paloma Valley, Murrieta, old Clydesdale horse ranch 0.4-0.6 miles S of Keller Rd., along unmarked dirt portion of Menifee Rd. 450 Comment
  UCR49219  Bowlesia incana Steve Boyd 1986-4-2 1597 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  JOTR28882  Brandegea bigelovii La Doux, Tasha 2004-2-24 1118 Riverside Joshua Tree National Park. Cottonwood Canyon 932 Comment
  JOTR35010  Brandegea bigelovii La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3112 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road, near Mission Well Comment
  RSA207686  Brandegea bigelovii James Henrickson 1969-11-8 4371 Riverside 5 air mi S of Palm Desert near top of Seven Level Hill at scenic stop 671 Comment
  RSA517243  Brandegea bigelovii Steve Boyd 1986-2-18 1331 Riverside Mecca Hills, Colorado Desert: Box Canyon, along Hwy 195. Comment
  UC194837  Brandegea bigelovii S. B. Parish 1916-5-13 10849 Riverside Colorado Desert, Cottonwood Spring Cottonwood Spring; Colorado Desert, Cottonwood Spring 792 Comment
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Oct 9 2010
  UCR64302  Brassica fruticulosa A. C. Sanders, O. F. Clarke 1989-4-5 9035 Riverside Box Springs Mtns, On the E edge of Riverside, at end of the dirt road in Two Trees Canyon Comment
  CSUSB494  Brassica geniculata C. Brown 1964-4-5 5464 1 Riverside East side Pachappa hill, along driveway off Panorama road 274 Comment
  HSC6599  Brassica juncea C. E. Fellows 1965-4-13 55 Riverside 5 mi. N of Palm Springs city limits on Hwy. 111, 1.5 mi. W on Snow Creek Rd. Comment
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Jun 9 2013
  UCR267878  Brassica kaber D. E. Bramlet 2006-5-25 4005 Riverside Perris-Aguanga Basin Region; San Jacinto Valley, Nuevo area, east of the San Jacinto River channel and south of Nuevo Rd., west of Pico Ave. 433 Comment
  RSA0123356  Brassica tournefortii Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9048 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
  RSA357782  Brassica tournefortii R. F. Thorne, M. Z. Thorne 1973-3-30 42671 Riverside Morongo Valley Canyon: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, Mission Creek. 488 Comment
  RSA784969  Brassica tournefortii Duncan S. Bell 2012-3-18 3232 Riverside The Mecca Hills; at the mouth of Box Canyon, on the north side of the Coachella Canal. 14 Comment
  UCR60708  Brassica tournefortii R. F. Thorne, M. Z. Thorne 1973-3-30 42671 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
  POM50809  Brickellia arguta E. C. Jaeger 1925-1-1 s.n. Riverside Pinon Well 1433 Comment
  UCR91653  Brickellia californica D. L. Banks, Steve Boyd 1995-10-26 0832 Riverside NW Palomar Mtns, Agua Tibia Mtns, along the Woodchuck Trail, c. 0.7 mi. from the Wilderness Boundary 713 Comment
  CAS-BOT-BC106187  Brickellia desertorum Nancy Ryan Zabriskie; Nancy Bercovitz 1971-11-15 463 Riverside Andreas Canyon, east slope San Jacinto Mountains - in canyon bottom but away from stream, this below the clubhouse. 304 Comment
  CLARK-A1528-175  Brickellia desertorum Oscar F. Clarke 1969-10-8 Riverside Riverside Comment
  UC63389  Brickellia desertorum E. A. Zumbro 1902-10-1 362 Riverside Comment
  UCR209329  Brickellia desertorum Fred M. Roberts, R. L. Allen, Sandra L. Leatherman 2009-10-2 7165 Riverside Santa Ana Mountains, ridge between Mabey and Tin Mine Canyons, 4.2 km by road above Forest Service gate, 2.9 km southeast of Sierra Peak 709 Comment
  SD132939  Brodiaea terrestris subsp. kernensis Tim Cass 1979-6-1 202 Riverside Mesa de Colorado, Pool A. (IPB 2/08) Comment
  UCR2234  Bromus hallii F. M. Reed 1908-7-14 2449 Riverside San Jacinto Mtns, Dry ridge on south side of Tahquitz 2378 Comment
  RSA562121  Bromus hordeaceus Steve Boyd 1992-4-14 6785 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Along Verdugo Trail from Tenaja Trail to Bluewater Trail in upper watershed of Bluewater Canyon, S of Sitton Peak. 793 Comment
  UCD59074  Bromus orcuttianus var. hallii Peter Kamb 1948-7-3 1141 a Riverside Hall Canyon, San Jacinto Mtns. 1645 Comment
  RSA774498  Bromus rubens Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4420 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell., Between N33.94217, W116.64118 and N33.94722 W116.64306 487 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
  RSA772132  Bromus tectorum Orlando Mistretta, Duncan Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4865 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
  RSA772964  Bromus tectorum Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4773 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  SEINET3856755 Image available Bromus tectorum A. C. Sanders, T. B. Salvato 2011-3-30 38894 Riverside Peninsular Range: city of Lake Elsinore, N of Pasadena St. c 0.35 km NW of Central Ave. intersection 385 Comment
  UCR88740  Bromus trinii A. C. Sanders 1995-4-13 16509 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Devil's Garden, E end of the mtns., 2.1 mi west of Hwy 62 on Pierson Avenue and dirt extension, 1.7 mi above Sierra Blvd. 793 Comment
  CHSC100825  Caesalpinia virgata Susan Bazell 2009-1-3 68 Riverside Mecca Hills. In Painted Canyon. Comment
  JOTR31932  Caesalpinia virgata La Doux, Tasha, M. Harding, B. Truesdell 2011-3-15 2171 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains; rocky wash draining into west Pinkham Wash Comment
  UCR250212  Calandrinia ciliata A. C. Sanders 2014-4-23 41062 Riverside Peninsular Range, Baker St. NW of Lake Elsinore, near Alberhill Mtn., 1.1 km NW of Hwy 74 387 Comment
  LA31714  Calocedrus decurrens Carl Epling; 1931-10-3 sn Riverside San Jacinto Mountains, Strawberry Valley 1523 Comment
  RSA5545  Calochortus invenustus Carl B. Wolf 1932-8-5 3966 Riverside Trail from Tahquitz Valley to San Jacinto Peak, San Jacinto Mountains. 2744 Comment
  UC3393  Calochortus invenustus H. M. Hall Jul 1901 2475 Riverside Tauquitz Valley San Jacinto Mountains 2712 Comment
  UCR85198  Calochortus plummerae M. J. Wangler 1995-6-6 s.n. Riverside Riverside: Western foot of the Box Springs Mtns. Above the bend in the Santa Fe RR near the east end of Linden Street. north of Big Springs Canyon and south of Two Trees Canyon 396 Comment
  POM123271  Calochortus splendens Marcus E. Jones 1903-5-11 s.n. Riverside Banning. 701 Comment
  SEINET4169992  Calochortus splendens Unknown 1979-5-19 Riverside Box Springs Mountains, Reche Canyon, 5.3 mi N. W. of Moreno 610 Comment
  UCR297  Calochortus splendens Frank C. Vasek 1955-5-14 228 Riverside Peninsular Range, [Wolf Valley], 8 miles north of Pala on S16 366 Comment
  RSA131710  Calochortus weedii E. K. Balls 1958-6-27 23296 Riverside Santa Ana Mountains, NW along Indian Truck Trail from junction with Main Divide. 854 Comment
  UCR62662  Calochortus weedii var. intermedius Gary Bell 1990-6-27 s.n. Riverside hills c. 0.75 mi west of Crown Valley, NW of Rawson Canyon 762 Comment
  RSA263764  Calycadenia tenella E. W. Lathrop 1968-6-2 6952 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. Comment
  RSA336171  Calycadenia tenella R. F. Thorne 1978-5-21 52002 Riverside Santa Rosa Plateau: Mesa de Colorado. 610 Comment
  RSA791486  Calycoseris parryi J. Andre, Tasha La Doux, R. B. Kelley 2011-5-4 21075 Riverside Joshua Tree National Park; Long Canyon, up side canyon approx. 400 m. west of main canyon drainage. 1172 Comment
  SEINET7379730 Image available Calycoseris wrightii H. K. Sharsmith 1952-4-11 4064 Riverside Northwest base of Chuckawalla Mountains 7 miles south of highway 60-70 1750 Comment
  JEPS52561  Calyptridium monandrum Carl V. Meyer 1929-6-15 756 Riverside along old road between Keen Camp and Idyllwild (San Jacinto Mountain); San Jacinto Mountain 1524 Comment
  SEINET3208890  Calyptridium monandrum G. Goodwin 2012-6-14 3445 Riverside San Jacinto Mountains, south of Banning along highway 243 just north of Vista Grande viewpoint 1550 Comment
  RSA65431  Calyptridium parryi var. parryi E. C. Jaeger 1921-7-8 5441 Riverside Tahquitz Valley 2104 Comment
  UCR250587  Calystegia macrostegia A. C. Sanders 2013-6-20 40834 Riverside Peninsular Range, Alberhill, along lower part of 'new' Nichols Rd. extension, just west of Collier Ave. intersection, NE of Pierce St. intersection 386 Comment
  UCR252228  Calystegia macrostegia Marissa Manahan 2011-4-24 s.n. Riverside Mount Rubidoux Park, Riverside, near summit 381 Comment
  CAS-BOT-BC221306  Calystegia macrostegia subsp. intermedia L. R. Abrams 1941-4-22 13883 Riverside 3 miles northeast of Elsinore on road to Perris Comment
  SDSU13485  Calystegia macrostegia subsp. intermedia C. Matt Guilliams, Linz, Tahirih 2000-4-29 Riverside Insect trail at Santa Margarita Ecological Reserve, approx. 1.5 miles NE of Gavalin Mountain. 354 Comment
  CAS-BOT-BC221317  Calystegia macrostegia subsp. tenuifolia C. L. Hitchcock; C. V. Muhlick 1964-3-17 23108 Riverside 10 miles n. of Pala, on road to Elsinore Comment
  UCR18965  Calystegia sepium subsp. binghamiae John C. Roos, L. Roos 1952-6-10 5763 Riverside San Bernardino Valley Region, Fairmont Park in Riverside, edge of lake 259 Comment
  RSA294424  Camissonia Lyman Benson 1949-3-28 13573 Riverside Wash at east end of Pines to Palms Highway just above junction of Palm Springs-Indio Road; Mt. Range: Santa Rosa Mountains; Drainage area: Colorado Desert. 305 Comment
  RSA784782  Camissonia Duncan S. Bell 2012-3-18 3186 Riverside The Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, approximately 2.8 air miles southwest of Hidden Spring. 20 Comment
  CDA37642  Camissonia bistorta T. C. Fuller 1964-4-14 11819 Riverside Bench above wash of Whitewater Canyon, 4.1 miles north of Whitewater. 0 Comment
  RSA192043  Camissonia bistorta E. W. Lathrop 1959-4-2 4444 Riverside 18 miles S.W. of Elsinore. Tenaja plateau, south slope Comment
  SEINET10389808  Camissonia brevipes A. C. Sanders, Jim Malusa 2015-3-11 41399 Riverside Chocolate Mountains, Gasline Road south of junction with road to Observation Point Slats, c. 3.9 miles south of the Bradshaw Trail, US Navy Chocolate Mountains Aerial Gunnery Range 674 Comment
  POM98704  Camissonia brevipes subsp. brevipes P. A. Munz 1926-1-31 9950 Riverside Dos Palmos [Palmas] Spring. Comment
  CLARK-A1528-656  Camissonia californica Charlotte Stocks 1964-5-20 Riverside Comment
  RSA678219  Camissonia californica Valerie L. Soza, J. Mark Porter, Gary D. Wallace 2001-4-2 1086 Riverside Big Morongo Wash. 473 Comment
  UCR21992  Camissonia californica Steve Boyd 1980-7-12 328 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  UCR87646  Camissonia californica A. C. Sanders 1994-5-29 14550 Riverside San Bernardino Mtns, Morongo Indian Reservation, low pass between Millard Canyon and Potrero Creek 793 Comment
  RSA454727  Camissonia campestris H. de Forest, Rempel 1934-4-14 19809 Riverside San Gorgonio Pass. 602 Comment
  UC56479  Camissonia campestris subsp. campestris H. M. Hall 1902-4-8 2765 Riverside Valle Vista Comment
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Mar 27 2011
  UCR168447  Camissonia chamaenerioides Mary F. Spencer 1920-4-7 1465 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Canyon 244 Comment
  UCR216199  Camissonia claviformis subsp. aurantiaca Jim Andre, T. La Doux 2009-2-28 10838 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
  RSA727870  Camissonia claviformis subsp. claviformis Naomi S. Fraga, Lisa Rojas 2005-2-10 1352 Riverside Just north of Palen Pass Road, ca. 10 miles east of Hwy 177. 365 Comment
  SEINET7073306  Camissonia contorta A. G. Vestal 1963-4-27 s.n. Riverside Santa Gertrudis Wash southeast of Murrieta Hot Springs. Coordinate datum: NAD27. Comment
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Jun 24 2020
  RSA574744  Camissonia graciliflora Steve Boyd 1981-3-31 s.n. Riverside Gavilan Hills region, south end of Harford Springs County Park on the Gavilan Plateau, just north of Ida-Leona Road. 610 Comment
  RSA503  Camissonia hirtella J. T. Howell 1927-8-2 565 Riverside Near Strawberry Valley, Mt. San Jacinto. 1677 Comment
  UCR261215  Camissonia hirtella A. C. Sanders, Katie Young, John Hale 2015-4-22 41596 Riverside San Gorgonio Pass, San Gorgonio River wash, SE of Cabazon, east of Elm St., c. 2 km south of I-10, 1 km NW (303 deg. ) of One Horse Spring 459 Comment
  RSA543896  Camissonia micrantha Steve Boyd 1991-5-20 6273 Riverside Santa Ana Mountains, NW of Lake Elsinore. Lower Rice Cyn, just inside Cleveland Nat. For. boundary. 573 Comment
  RSA504978  Camissonia refracta D. Charlton 1988-2-25 1167 Riverside Box Canyon Wash between the Mecca Hills and Orocopia Mountains, 10 miles S of I-10 and N of Mecca and Salton Sea 305 Comment
  RSA564048  Camissonia strigulosa A. C. Sanders 1993-5-17 14064 Riverside Hemet, S side of Florida Ave. (Hwy 74) on the E side of California Ave. 457 Comment
  UC20533  Camissonia strigulosa H. M. Hall May 1899 Riverside San Jacinto Mountains 1828 Comment
  JEPS7498  Camissoniopsis bistorta Rimo Bacigalupi with J. F. MacBride and Ruth D. Sanderson 1952-3-30 3553 Riverside on w-facing hillslopes between Wildomar and Murrieta (2.6 mi n of Murrieta, along combined State Hwy 71 and US 395, sw Riverside Co.) Comment
  UC454581  Camissoniopsis bistorta I. J. Condit 1910-6-24 Riverside Idyllwild San Jacinto Mts. 914 Comment
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Mar 21 2011
  UC56476  Camissoniopsis bistorta H. M. Hall 1902-4-26 2990 Riverside vicinity of Riverside 365 Comment
  UCD103434  Camissoniopsis bistorta A. C. Sanders; T. B. Salvato 2000-5-25 23428 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
  UC20490  Camissoniopsis ignota Geo. R. Hall 1901-3-17 Riverside Riverside Comment
  JOTR34069  Camissoniopsis pallida subsp. pallida La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2966 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; narrow canyon on edge of 2009 burn area, north of Lost Horse Mine trail Comment
  CSUSB542  Capsella bursa-pastoris Leland R. Dykes 1962-3-25 6 Riverside 4831 Robidoux Ave. Riverside Comment
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Feb 24 2013
  SD8373  Capsella bursa-pastoris Daniel Cleveland 1882-5-5 Riverside Temecula Plains Comment
  POM1507  Carex alma I. M. Johnston s.n. Riverside Mouth of Andreas Canyon. 244 Comment
  CHSC106640  Carex bolanderi P. Zika; N. Otting, K. Kramer 2010-8-6 25300 Riverside San Jacinto Mountains (SnJt); Bridge over N Fork San Jacinto River, Dark Canyon, at campground. 1785 Comment
  POM12144  Carex fracta Mary F. Spencer 1921-6-15 1686 Riverside Idyllwild, San Jacinto Mt. 1616 Comment
  RSA88679  Carex lemmonii F. W. Peirson 1924-7-27 6024 Riverside Deer Spring, Dark Canyon, San Jacinto Mountains. 2439 Comment
  CAS-BOT-BC32224  Carex multicostata Frederick Morris Reed 1908-7-11 2483 Riverside Summit of San Jacinto Mt. 2621 Comment
  UCR40555  Carex schottii Steve Boyd 1985-7-23 1024 Riverside Santa Ana Mtns., Santa Rosa Plateau, De Luz Road, 8.5 mi. west of Rancho California 275 Comment
  CAS-BOT-BC117449  Carex senta D. E. Breedlove 1961-7-29 873 Riverside Fuller Mill Creek where it crosses Riverside Hwy #1. San Jacinto Mountains. 1645 Comment
  SEINET3074273 Image available Castela emoryi A. C. Sanders, D. Charlton, B. Pitzer 1986-3-1 6041 Riverside Hayfield Lake, NW end of the lake ca. 0.5 miles SW of the pumping station. 410 Comment
  JEPS8585  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. F. MacBride, Ruth D. Sanderson, and C. Leroy Custer 1952-3-30 3549 Riverside 1 mi n Temescal Guard Station (State Highway 71, 9 mi se of Corona) 335 Comment
  UCR122546  Castilleja applegatei subsp. martini George K. Helmkamp, E. A. Helmkamp 2001-5-20 6677 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 Comment
  UC1012299  Castilleja applegatei subsp. martinii F. W. Pennell and A. L. Grant 1940-4-28 25283 Riverside w slope San Jacinto Range (Route 74) 1402 Comment
  RSA679195  Castilleja applegatei subsp. martinii Michael Denslow, Firoozeh Navid-Ara, Valerie Soza 2003-7-15 1445 Riverside Northeast side of Tahquitz Peak, on trail to Saddle Junction 2637 Comment
  HSC20513  Castilleja foliolosa C. L. Hitchcock 1966-3-15 24164 Riverside About 10 mi. NE of Temecula Comment
  UC26455  Castilleja miniata H. M. Hall 1901-8-1 2582 Riverside Tauquitz Valley; San Jacinto Mts. 2438 Comment
  SD136752  Castilleja minor subsp. spiralis Steve Boyd, T. Ross, D. Bramlet 1993-5-12 7329 Riverside 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
  UCR193419  Castilleja minor subsp. spiralis A. C. Sanders, Tim Thomas, T. B. Salvato, Mitch Provance 2008-7-1 35630 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
  SDSU17676  Castilleja subinclusa subsp. subinclusa Jerry Jenkins 2001-4-1 2001 -025 Riverside Santa Margarita Ecological Reserve. Side road going south from mine road, UTM zone 6, 482550E, 3699900N. 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
  RSA0119990  Caulanthus hallii Duncan S. Bell, Thomas Stoughton 2016-4-13 9262 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting along the Cactus Spring Trail, in the vicinity of Horsethief Creek. 1047 Comment
  UCR281485  Caulanthus heterophyllus Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-4-4 417- 88 Riverside Gavilan Hills, SCE transmission route (projected) 0.6 miles NNW of Lake St. and Walker Canyon Rd. 152 Comment
  SD187380  Caulanthus lasiophyllus Naomi Fraga, Lisa Rojas 2005-2-10 1366 Riverside Northeastern Colorado Desert region, just north of Palen Pass Road, ca. 10 miles east of Highway 177. 365 Comment
  UCR108392  Caulanthus lasiophyllus D. L. Banks, V. W. Steinmann 1997-3-13 1468 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
  UCR68474  Caulanthus lasiophyllus var. rigidus Steve Boyd, A. C. Sanders, M. Skinner 1990-4-28 4444 Riverside Peninsular Range, Vail Lake area, summit of 'Big' Oak Mtn., north of [Vail] Lake 823 Comment
  UCR35190  Caulanthus simulans L. B. Ziegler 1969-4-2 341 Riverside San Jacinto Mtns, Pinyon Flats 1250 Comment
  RSA0028170  Ceanothus John F. Emmel 1988-4-27 1086 Riverside Bautista Canyon road, 0.75 road mile northwest of turnoff to Tripp Flats. 1120 Comment
  CAS-BOT-BC48453  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2648 Riverside Santa Ana Mts., Hidden Canyon, 5 mi. west of Corona, base of Skyline Drive 405 Comment
  CLARK-A1528-5724  Ceanothus crassifolius John C. Roos 1948-5-22 3862 Riverside Box Springs Mountains Comment
  RSA570225  Ceanothus crassifolius Steve Boyd, Tim S. Ross 1993-3-23 7894 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
  RSA575066  Ceanothus crassifolius Steve Boyd 1981-3-4 810304 -Q Riverside Gavilan Hills region, low hill and adjacent flats along Gavilan Creek drainage at the southwest end of Harford Springs County Park on the Gavilan Plateau, north of Ida Leeona Road and east of the trailer park. 610 Comment
  SD27983  Ceanothus crassifolius Carl B. Wolf 1932-2-11 2648 Riverside Santa Ana Mts., Hidden Canyon, 5 Mi. west of Corona, base of Skyline Drive 405 Comment
  UCR163217  Ceanothus crassifolius T. B. Salvato, Kelly Volansky 2003-3-27 132 Riverside Santa Ana Mtns, foothills at edge of Temescal Valley, development called 'Trilogy at Glen Ivy,' between Bixby and Brown Canyons 396 Comment
  UCR92707  Ceanothus crassifolius A. C. Sanders, O. F. Clarke 1996-4-13 18030 Riverside Riverside: Box Springs Mtns, crest of range in vicinity of park headquarters, head of Two Trees Canyon 700 Comment
  RSA399034  Ceanothus cuneatus Elbert Benjamine 1929-5-18 2028 Riverside Mt. San Jacinto. 915 Comment
  UC870525  Ceanothus cuneatus var. cuneatus I. W. Clokey and E. G. Anderson 1935-4-16 6734 Riverside e of Hemet 820 Comment
  POM160078  Ceanothus greggii var. perplexans E. C. Jaeger 1927-3-16 s.n. Riverside Cabazon. Comment
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Mar 13 2011
  UCR140673  Ceanothus integerrimus Randall T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero 2004-5-20 13- 87 Riverside San Jacinto Mtns, San Bernardino National Forest, 12 miles north of Idyllwild on Hwy 243 near Vista Grande, Site L13 1558 Comment
  JEPS42394  Ceanothus leucodermis C. V. Meyer June 1927 136 Riverside Saunder's Meadow San Jacinto Mts. Comment
  POM49159  Ceanothus leucodermis P. A. Munz 1924-5-18 8144 Riverside 18 miles south of Banning on Idyllwild Road. 1524 Comment
  RSA462400  Ceanothus leucodermis H. de Forest, Freda Detmers 1931-4-2 s.n. Riverside Colorado Desert. 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
  RSA262091  Ceanothus oliganthus E. W. Lathrop 1969-5-9 7032 Riverside Main Divide Truck. Trail between El Carriso and Santiago Peak, Cleveland Nat'l Forest. 1220 Comment
  UC718442  Ceanothus oliganthus var. oliganthus P. C. Everett 1935-6-18 7202 Riverside 1.7 mi n Los Pinos Potrero (Main Divide Motorway.); Santa Ana Mts. Comment
  LA44926  Ceanothus oliganthus var. sorediatus W. E. Pequegnat; 1939-4-8 sn Riverside Santa Ana Mountains, Coldwater Trail 731 Comment
  HSC90191  Ceanothus ophiochilus Steve Boyd, T. S. Ross, L. Arnseth 1989-3-31 3097 Riverside Vail Lake area, 1 mi. W of lake 610 Comment
  RSA249852  Ceanothus palmeri Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38124 Riverside San Bernardino National Forest, San Jacinto Mountains.: Above and in James Reserve. 1677 Comment
  SEINET13946084 Image available Ceanothus sorediatus Dave Hawks 1987-1 s.n. Riverside S. of Hemet, intersection of Palm Ave. and Saddle Ridge Trail. 472 Comment
  POM12992  Ceanothus tomentosus subsp. olivaceus P. A. Munz, I. M. Johnston 1922-5-19 5311 Riverside Santa Ana River Canyon. 457 Comment
  RSA552723  Ceanothus tomentosus subsp. olivaceus Steve Boyd, Tim S. Ross, Orlando Mistretta 1992-3-31 6765 Riverside San Mateo Canyon Wilderness Area. Morgan Trail from Round Potrero W to junction with Tenaja Trail in N-fork Bear Creek. 670 Comment
  RSA291594  Ceanothus tomentosus var. olivaceus C. W. Tilforth, Walter Wisura 1979-4-11 1762 Riverside East end of Murrieta-DeLuz Rd, ca. 2 air mi. south of Murrieta. 335 Comment
  UCR124660  Celtis reticulata B. C. Templeton 1954-11-3 s.n. Riverside San Bernardino Mountains, canyon north of Banning [prob. end of 16th St., Gilman Ranch] 915 Comment
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Mar 13 2011
  RSA0057839  Cenchrus ciliaris J. C. Roos 1965-10-17 Riverside Along the roadside, 20 miles west of Blythe. Comment
  CDA7300  Centaurea X pouzinii Gene Drake 1989-12-8 Riverside Corona. DeGroot Dairy, Archibald and Greenwine. 0 Comment
  UCR270169  Centaurea benedicta A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-2 42391 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, vicinity of lab and old Emerson house site 488 Comment
  UCR140872  Centaurea repens John Rimoldi 2004-8-15 s.n. Riverside San Bernardino Valley Region, Arlington area of Riverside, Doolittle Ave., c. 0.5 km NW of Van Buren Blvd. on Doolittle, west of Riverside Airport 226 Comment
  SD243094  Centromadia pungens subsp. laevis Jeremiah George 2012-7-9 Riverside San Timoteo Canyon, west side of San Timoteo Canyon Road, NE corner of Fisherman's Retreat Lake (El Casco 7.5'Q) 597 Comment
  UC1930967  Centromadia pungens subsp. laevis R. E. Riefner Jr. 2005-8-28 05 -648 Riverside Peninsular Range: SE of Lake Elsinore toward Wildomar, Corydon Rd. at Union St. Comment
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Jan 15 2016
  OBI37521  Centromadia pungens subsp. pungens Steve Boyd 1985-8-7 1114 Riverside Murrieta area, Clinton Kieth Rd. just E of the Bear Creek development golfcourse Comment
  UC667256  Centrostegia thurberi var. thurberi Annie M. Alexander and Louise Kellogg 1941-4-27 2100 Riverside Joshua Tree National Monument Joshua Tree National Monument Joshua Tree National Monument; Joshua Tree National Monument 1310 Comment
  UC1128902  Cercidium floridum subsp. floridum H. S. Yates 1937-6-28 6745 Riverside near Oasis; Thermal Quadrangle 30 Comment
  POM243639  Cercocarpus betuloides E. C. Jaeger 1938-10-2 s.n. Riverside Little San Bernardino Mountains. 1220 Comment
  UCR270749  Cercocarpus betuloides T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8356 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 436 Comment
  UCR175182  Cercocarpus betuloides var. betuloides Jim Andre 2006-4-26 6754 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
  RSA86676  Cercocarpus minutiflorus F. W. Peirson 1921-3-21 4191 Riverside Gordon Trail. 1372 Comment
  POM12998  Chaenactis artemisiifolia Philip A. Munz, I. M. Johnston 1922-5-19 5405 Riverside San Jacinto Canyon, near canyon bed at mouth of Strawberry Creek 762 Comment
  UCR47055  Chaenactis artemisiifolia B. G. Pitzer, A. C. Sanders 1987-4-21 499 Riverside Box Spring Mountains, near southernmost radio towers 793 Comment
  CAS-BOT-BC276397  Chaenactis carphoclinia F. O. Ballow 1926-2-27 s.n. Riverside Painted Canyon Comment
  RSA0107467  Chaenactis carphoclinia Duncan S. Bell, Amanda Turek 2009-3-29 157 Riverside Collecting in the large western drainage of the Arica Mountains, within the Palen/McCoy wilderness area. 434 Comment
  SBBG104630  Chaenactis carphoclinia T. Glenn 1991-4-30 91 -60 Riverside McCoy Mtns, NW of Blythe; T5S, R 20E, S19 170 Comment
  UCR167469  Chaenactis carphoclinia John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, NNE of Rancho Dos Palmas, between Coachella Canal siphons 28 and 29 24 Comment
  JOTR32431  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
  POM351705  Chaenactis fremontii Anstruther Davidson 1903-5-3 s.n. Riverside Thermal. Comment
  RSA645611  Chaenactis fremontii Scott D. White, Steve Ogg 1994-4-21 1990 Riverside Millard Canyon, near stream crossing w/ USFS Road 2S05, +/-4 miles south of Bear Wallow Spring. 915 Comment
  RSA770843  Chaenactis fremontii Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4947 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 1-2 miles above Whitewater Visitor Center (Whitewater Trout Farm)., Between N34.01961, W116.68175 and N34.01041 and W116.67141. 850 Comment
  UCD130341  Chaenactis fremontii R. L. Smith 1948-3-24 s.n. Riverside foot of Andreas Canyon. Comment
  UCR132502  Chaenactis fremontii Chet McGaugh 2004-2-25 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, northern Palm Springs, near the Whitewater River channel, NW corner of Sunrise Way and San Rafael 171 Comment
  UCR260837  Chaenactis fremontii A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-25 41516 Riverside San Gorgonio Pass, 2.5 miles ESE of Cabazon, north of the San Gorgonio River wash on the alluvial slope east of the water bottling plant and Elm St. 463 Comment
  SD130354  Chaenactis glabriuscula Ed LaRue 1990-4-13 Riverside I(c) miles northwest of Aguanga, north of Highway 79 and west of Highway 371. 640 Comment
  UCR174623  Chaenactis glabriuscula Jennifer H. Jones, Thi (Teresa) Bui and Holly Summers 2006-5-31 345 Riverside Peninsular Ranges; San Jacinto Mtns., Turnout south of Mt. Edna Road along Calif. Hwy 243 1143 Comment
  UCSB12971  Chaenactis glabriuscula Elliott, Millicent 1962-5-5 Riverside 6.6 miles south of junction of 8th Street (Banning) with U.S. 70-00; San Jacinto Mountains 1158 Comment
  RSA711221  Chaenactis glabriuscula var. lanosa A. C. Sanders 2004-4-9 27470 Riverside San Jacinto Valley: Tres Cerritos, ca. 3 miles WNW of Hemet, east of the Lakeview Mtns., alluvial slope in mouth of large canyon on south side. 473 Comment
  SBBG65574  Chaenactis glabriuscula var. lanosa M. N. Ackley 1928-3-11 273 Riverside near Cabazon, San Gorgonio Pass 609 Comment
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Mar 13 2011
  JEPS30505  Chaenactis parishii Donald W. Kyhos 1958-5-16 58 -183 Riverside 1.85 mi up road toward Mount Santa Rosa; San Jacinto Mountains, Mount Santa Rosa Comment
  UCR20190  Chaenactis parishii Jeanine Derby 1976-6-29 s.n. Riverside San Jacinto Mtns., Garner Valley, Quinn Flats 1375 Comment
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Jun 3 2012
  JOTR32350  Chaenactis stevioides La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-6-1 2466 Riverside Joshua Tree National Park. Little San Bernardino Mountains: Northeast of Quail Mountain and near Johnny Lang Canyon; Bouldery northeast facing drainage (Stop 1) Comment
  RSA770642  Chamaesyce R. F. Thorne 1966-10-15 41792 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway. Comment
  JOTR33955  Chamaesyce albomarginata La Doux, Tasha, M. Harding, M. Wheeler, and J. Harding 2010-6-2 2841 Riverside Joshua Tree National Park. Little San Bernardino Mountains, NW of Key's View and Inspiration Peak; sandy wash and gravelly benches with bouldery granitic outcrops Comment
  POM182427  Chamaesyce albomarginata R. L. Pendleton 1905-9-28 255 Riverside Riverside. Comment
  RSA70546  Chamaesyce arizonica F. W. Peirson 1922-12-28 4256 Riverside Andreas Canyon near Palm Springs Comment
  SBBG92825  Chamaesyce micromera D. Charlton 1988-2-18 1146 Riverside S side of Little San Bernardino Mtns, Fargo Cyn Rd to Cottonwood Wash, parallel to Interstate 10 609 Comment
  RSA433508A  Chamaesyce polycarpa E. A. McGregor 1964-1-30 s.n. Riverside Dry bed of Lake Elsinor. Comment
  RSA778321  Chamaesyce polycarpa Amber Swanson, Linda Jean Foster 2011-10-8 626 Riverside Jct of Blythe Rice Rd and Hwy 62. 287 Comment
  POM2850  Chamaesyce serpillifolia H. M. Hall 1904-5-24 4961 Riverside Santa Ana river near Riverside. 244 Comment
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Nov 24 2016
  UCR132352  Cheilanthes newberryi Michael D. Wilcox 2003-5-13 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  UCR97754  Cheilanthes newberryi A. C. Sanders 1997-3-1 19729 Riverside Box Springs Mountains, Pigeon Pass, canyon below Regulus Road, 0.6 mi. west of Pigeon Pass Road., 0.4 mi. east of Bench Mark 'Table' (2559 ft). 610 Comment
  POM12431  Cheilanthes parryi E. C. Jaeger 1921-3-28 s.n. Riverside Colorado Desert: Box Canyon, north of Mecca Comment
  RSA577151  Cheilanthes parryi L. C. Wheeler 1933-12-2 2305 Riverside Mouth Tahquitz Canyon near Palm Springs 144 Comment
  UC669240  Cheilanthes parryi Annie M. Alexander and Louise Kellogg 1941-2-28 1875 Riverside Andreas Canyon; San Jacinto Mts 335 Comment
  UC71221  Cheilanthes viscida W. G. Wright April 1880 Riverside White Water Canyon Comment
  UC811618  Cheilanthes viscida Ivan Johnston Riverside Palm Canyon; Colorado Desert 304 Comment
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Jul 4 2015
  CLARK-A1528-4990  Chenopodium californicum John C. Roos 1951-9-25 5301 Riverside Riverside 259 Comment
  NY990883  Chenopodium californicum S. D. Boyd 1990-3-30 3970 Riverside Vail Lake area, valley between Black Hills and Rocky Ridge. 701 Comment
  CDA23371  Chenopodium desiccatum Scott D. White 1998-6-28 6790 Riverside Coastal Plains and Basins; San Bernadino Basin region; Corona: River Road bridge over the Santa Ana River. Comment
  UC7268  Chenopodium pratericola H. M. Hall July 1901 2473 Riverside Tahquitz Valley San Jacinto Mountains 2133 Comment
  POM3997  Chilopsis linearis subsp. arcuata M. Shaw 1917-4-4 s.n. Riverside Palm Canyon Comment
  UCR94644  Chilopsis linearis subsp. arcuata Scott D. White 1996-5-27 4075 Riverside Badlands, Jackrabbit Canyon, east of Moreno Valley and south of Calimesa, between Hwy 60 and Gilman Springs Road. 610 Comment
  POM48039  Chimaphila umbellata subsp. occidentalis P. A. Munz, I. M. Johnston 1924-7-27 8724 Riverside ridge south of Dark Canyon, San Jacinto Mts 2287 Comment
  UCD169371  Chloris truncata A. C. Sanders 1997-3-26 20138 Riverside Lake Skinner area, large clay patch adjacent to the Skinner entrance road, c. 1 km NE of Borel Rd. 473 Comment
  UCR16538  Chorizanthe coriacea H. C. Sharma 1976-4-25 760425- 04 Riverside San Bernardino Valley, Reche Canyon, area opposite 7382 Reche Canyon Road 457 Comment
  UCR174432  Chorizanthe fimbriata A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-22 32480 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
  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
  UCR48347  Chorizanthe leptotheca Steve Boyd 1986-4-22 1758 Riverside Temescal Canyon, stable alluvial benches of Indian Wash just south of Interstate Hwy 15 Comment
  UC217961  Chorizanthe parryi var. parryi P. A. Munz and I. M. Johnston 1922-5-19 5359 Riverside 5 mi ne Murietta; ne of Murietta 457 Comment
  UCR266336  Chorizanthe polygonoides var. longispina D. E. Bramlet 1993-5-12 2352 Riverside Peninsular Range, Temecula, c. 4 km south of intersection of Pauba Rd & Butterfield Stage Rd, 46-300 m west of Butterfield Stage Rd. 372 Comment
  UCR266486  Chorizanthe polygonoides var. longispina Mitch Provance, Eric Kline 2015-3-26 315- 43 Riverside Temecula/Murrieta Region, Murrieta, Antelope Hills neighborhood, NE corner of Menifee Rd. and Clinton Keith Rd. 425 Comment
  JOTR35338  Chorizanthe rigida Harding, Mitzi, Mark Wheeler 2012-2-28 104 Riverside Joshua Tree National Park. Southeast Coxcomb Mountains; high saddle along wide ridge (Stop 3) 463 Comment
  JEPS57750  Chorizanthe staticoides Marjorie D. Clary 1932-7-3 991 Riverside Hurkey Creek Hemet Valley, Hurkey Creek 1371 Comment
  RSA735859  Chorizanthe staticoides Scott D. White, Justin M. Wood 2008-4-16 11886 Riverside Perris/Elsinore Basin: Hills to the W of I-215 and S of Scott Rd. 488 Comment
  UC449702  Chorizanthe staticoides Mrs. Lottie M. Wilder 1903-6-4 44 Riverside Wilder's Comment
  UCR42359  Chorizanthe xanti B. G. Pitzer 1986-5-4 0199 Riverside Colorado Desert/San Bernardino Mtns., Whitewater Canyon, at N edge of hatchery to c. 0.25 mi. N; c. 5 mi. north of Interstate Hwy 10 on Whitewater Canyon Road. 732 Comment
  SD248476  Chorizanthe xanti var. xanti Lee A. Ripma 2008-6-25 130 Riverside Peninsular Ranges: San Jacinto Mountains: Alvin Meadows (Blackburn Canyon 7.5'Q) 1467 Comment
  UCR25017  Chrysolepis sempervirens A. C. Sanders 1980-7-23 1768 Riverside San Jacinto Mtns, Black Mountain, rocky ridge SW of Farview Point. 2348 Comment
  UCR89685  Chrysothamnus paniculatus Bern Schwenn 1993-9-14 s.n. Riverside Joshua Tree National Monument, Cottonwood Mtns, Pinkham Canyon in the wash, west of Cottonwood Springs. 1067 Comment
  POM243703  Chrysothamnus teretifolius E. C. Jaeger 1938-10-22 s.n. Riverside 12 miles S of Warren's Well Comment
  UCR269873  Chylismia arenaria A. C. Sanders, Jim Malusa 2016-3-18 42372 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, along gasline road 21.5 km due north of Slab City/Camp Dunlap 538 Comment
  RSA0049853  Chylismia brevipes subsp. brevipes Jim Andre 2014-1-27 26670 Riverside At mine site (and borrow pit), in canyon 1.3 mi. west of Hwy 95 (at Wilson Rd), 12.2 mi. south of Vidal Jct (at Hwy 62). 224 Comment
  UC68524  Chylismia brevipes subsp. brevipes H. M. Hall April, 1905 5833 Riverside near Mecca; Colorado Desert -30 Comment
  CAS-BOT-BC160604  Chylismia claviformis subsp. aurantiaca Ira L. Wiggins 1937-3-9 8759 Riverside 5 miles west of Shaver's Well Comment
  UC494673  Chylismia claviformis subsp. aurantiaca Philip A. Munz 1932-3-14 11995 Riverside Deep Canyon Coachella Valley 91 Comment
  RSA740254  Cirsium vulgare Scott D. White, Justin M. Wood 2008-7-9 12410 Riverside San Jacinto Mountains: Johnson Meadow 1415 Comment
  RSA466606  Cistanthe monandra A. C. Life 1928-3-17 s.n. Riverside Colorado Desert, Painted Canyon Comment
  RSA718827  Cistanthe monandra Michael Honer, L. Hulse 2004-4-3 1924 Riverside Rockhouse Canyon, appx. 1/2 mi. N of intersection with Fargo Canyon. Peninsular Ranges, San Ysidro Mountains: W side of Otay Mtn; 1.5 km SSE of Savage Dam (Otay Lake); N of County Prison; near tributary to Otay River, N of O Neal Canyon. 610 Comment
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Jun 8 2016
  CAS-BOT-BC438965  Cistanthe monosperma Mary F. Spencer 1919-7-6 1264 Riverside Tacquitz [Tahquitz] ridge, San Jacinto Mt. 2377 Comment
  UCSB22195  Clarkia bottae Hitchcock, C. 1928-5-20 Riverside Santa Ana Canyon; 8 miles west of Prado 400 Comment
  UCR162841  Claytonia parviflora 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
  UCR174065  Claytonia parviflora A. C. Sanders 2006-5-19 32444 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
  UCR215130  Claytonia parviflora Sarah C. Pasquini 2008-4-18 13 Riverside Peninsular Range; San Jacinto Mtns., c. 6.5 miles south of city of Banning, 200 m down Mt. Edna Road off hwy 243 1160 Comment
  RSA65731  Claytonia parviflora subsp. tenuifolia E. C. Jaeger 1921-6-21 5440 Riverside Idyllwild. Comment
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Nov 5 2011
  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
  SD136775  Clematis ligusticifolia Steve Boyd, T. Ross, D. Bramlet 1992-9-9 7676 Riverside San Mateo Canyon Wilderness, Upper San Mateo Canyon, top of Tenaja Falls 671 Comment
  UCD95596  Clematis ligusticifolia F. C. Vasek 1978-7-28 s.n. Riverside San Bernardino Mtns.: Cushenbury Springs. 1250 Comment
  RSA386260  Clematis pauciflora E. S. Spalding 1925-6-12 s.n. Riverside Near Temecula. Comment
  POM9597  Clematis pauciflora I. M. Johnston 1920-5-8 s.n. Riverside Butte due west of Lakeview Comment
  RSA440809  Cleome isomeris Robert Gustafson 1981-4-7 2150 Riverside Salt Creek Wash, southern end of the Orocopia Mts. 91 Comment
  RSA440812  Cleome isomeris Robert L. Dressler 1949-3-19 432 Riverside Coxcomb Mountains, 23 miles NE of Desert Center Comment
  RSA575905  Cleome isomeris Steve Boyd 1994-10-14 8402 Riverside Southern Santa Mountains, Santa Rosa Plateau, east of the Tenaja Guard Station of the Clevelands National Forest, at the intersection of Tenaja Road and Wildomar Truck (7S01) 671 Comment
  POM93721  Cleome isomeris Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring. 61 Comment
  POM229458  Collinsia concolor Philip A. Munz 1937-5-30 15090 Riverside sandy area north of Vandeventer Flat, Santa Rosa Mts. 1677 Comment
  RSA0117432  Collinsia concolor D. L. Banks, Steve D. Boyd 1995-5-3 263 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  RSA0117439  Collinsia concolor Scott D. White, Michael Honer 2003-4-9 8995 Riverside Gavilan Hills: About 1 mile N of the I-15 Freeway and 1 mile east of Lake St. exit, on and around unnamed peak '2349.' 549 Comment
  UC26576  Collinsia concolor Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Mtns Comment
  UCR193125  Collinsia concolor A. C. Sanders, Tim Thomas 2008-6-20 35534 Riverside Peninsular Range; San Jacinto Mtns., May Valley near Fleming Ranch, north of Bonita Vista Rd. and east of Herkey Creek 1550 Comment
  UCR193134  Collinsia concolor A. C. Sanders, Tim Thomas 2008-6-20 35529 Riverside Peninsular Range; San Jacinto Mtns., May Valley area, at spring with trough, along dirt road (May Valley Rd.) c. 1.5 mi. ENE of Keenwild, 0.5 mi. NW of FS Rd. 5S05 1610 Comment
  RSA0117416  Collinsia concolor R. S. Woglum 1939-4-23 2185 Riverside Hemet to Anza, Riverside ( west-central to south-central) Comment
  CLARK-A1528-850  Collinsia heterophylla Ted R. Turk 1971-5-16 Riverside Murrieta Comment
  OBI38803  Condalia globosa var. pubescens A. C. Sanders, et al 1986-3-1 6042 Riverside Chuckwalla Bench, W side of Chuckwalla Mts, 9 mi S of hwy I-10 on the gasline road, 2 mi airline S of the Model Mine 579 Comment
  SBBG87474  Condalia globosa var. pubescens A. C. Sanders 1986-3-1 6042 Riverside Chuckwalla Bench, W side of Chuckwalla Mtns 9 mi S of Interstate 10 on the gasline rd, 2 mi airline S of the Model Mine 579 Comment
  RSA544410  Conium maculatum Steve Boyd, Timothy S. Ross 1991-6-14 6378 Riverside Warm Springs Creek at NE end of Hogbacks ridge from Alamos Rd. S to confluence w/ Adobe Springs tributary, 2-3 miles NW of Murrieta Hot Spings. Comment
  RSA764525  Convolvulus arvensis Justin M. Wood 2010-9-8 2605 Riverside San Timoteo Canyon: Just SE of El Casco Substation along San Timoteo Creek. 640 Comment
  UCR201951  Convolvulus arvensis Mike Misenhelter 2005-7-12 s.n. Riverside Peninsular Range; Perris-Aguanga Basin Region, c. 3 miles E of Sun City, c. 2 mi. SW of Winchester, Hemet U. School Distr. proposed elementary school site, 14 acres on south side of Salt Creek and NE of the intersection of Leon and Patton Rds. 444 Comment
  RSA535086  Convolvulus simulans Steve Boyd 1991-5-10 6219 Riverside Temescal Canyon, E base of Santa Ana Mountains. Terrace escarpment just SE of Indian Truck Trail offramp of I-15, S of DePalma Road. 366 Comment
  UC1584111  Convolvulus simulans Steve Boyd, Tim Ross, and Laurel Arnseth 1990-3-29 3890 Riverside cinder cone ridge at n side of mouth of Temecula Creek Cyn (s flank of mt.); Vail Lake Area, Big Oak Mtn. 396 Comment
  UCR250094  Convolvulus simulans A. C. Sanders 2014-4-18 41038 Riverside Peninsular Range, Temescal Canyon, along De Palma Rd. between Horsethief Canyon Road and Glen Eden 372 Comment
  UCSB26204  Cordylanthus rigidus subsp. rigidus Gliessman, Stephen 1968-7-24 Riverside West side of Morris Ranch Road, 0.4 miles north of junction with Highway 74, hills north of Hemet Valley 1402 Comment
  CAS-BOT-BC288999  Coreopsis John H. Thomas 1957-3-30 6565 Riverside Joshua Tree National Monument. About 3 miles SE of White Tank near the road to Cholla Cactus Garden.About 20 miles NE of Indio 883 Comment
  RSA730038  Coreopsis californica var. californica R. F. Thorne, M. Z. Thorne 1973-3-30 42713 Riverside Mojave Desert: southeast end Johnson Valley, c. 20 mi north of Yucca Valley and 12 mi east-southeast of Old Woman Springs. 976 Comment
  SFV18009  Cornus nuttallii J. D. Dilley 1999-7-26 383 Riverside San Jacinto Mountains 0.25 miles south of Dark Canyon Camp on road from San Jacinto State Park. 1799 Comment
  SEINET11044816  Coryphantha alversonii Marc A. Baker, Michelle Cloud-Hughes 2011-1 Riverside Comment
  UCR153366  Crassula connata LeRoy Gross, Valerie Soza 2003-5-8 830 Riverside Peninsular Ranges; San Jacinto Mountains region, North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 777 Comment
  RSA507504  Cressa truxillensis Steve Myers 1988-6-4 s.n. Riverside Rancho California area, E of Winchester Road, between Auld Rd. & Borel Rd 396 Comment
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Mar 20 2011
  CAS-BOT-BC175807  Crossosoma bigelovii Edmund C. Jaeger 1925-3-1 s.n. Riverside Snow Creek, San Jacinto Mts. 609 Comment
  RSA337441  Crossosoma bigelovii R. F. Thorne, C. W. Tilforth 1973-5-30 43584 Riverside Colorado Desert: Mouth of Morongo Valley at N end of Coachella Valley 549 Comment
  SD230228  Croton californicus V. W. Steinmann, M. T. Wedlake 1995-4-8 655 Riverside Along Hwy. 1111, 1 km northwest of Palm Slprings (measured from the intersection with San Rafael Dr.) south of the highway. 214 Comment
  SEINET3089930 Image available Croton californicus B. Pitzer 1986-5-24 247 Riverside Whitewater Canyon, ca. 5 mi N of Hwy I-10 on Whitewater Canyon Road. From N edge of Hatchery to ca. 1/4 mi N of hatchery boundary. Whitewater 7.5' quad. 731 Comment
  UCR156091  Croton californicus T. B. Salvato, Kent Beaman 2005-5-16 803 Riverside San Jacinto Mtn foothills, San Jacinto River east of Valle Vista, just downstream from the Forest Service boundary and north of CA Hwy 74 585 Comment
  SEINET10493393  Croton californicus David B. Dunn 1948-6-18 Dunn 3827 Riverside Desert floor on the way out along dirt road from Coldwater Canyon. Comment
  UCR153B  Croton setiger O. F. Clarke 1968-3-25 s.n. Riverside Riverside, UCR campus 396 Comment
  CAS-BOT-BC202497  Croton wigginsii Winfield 1975-4-27 2444 Riverside Snow Ck Rd ~3 mi from Hiway 111 Comment
  UCR89650  Crypsis schoenoides Karen Kirtland 1993-6-19 s.n. Riverside San Jacinto River Valley, along Hwy I-215 between 4th St. (Perris) and c. 0.25 mile south of the San Jacinto River crossing 430 Comment
  POM368179  Cryptantha angustifolia T. S. Clare 1930-4-14 s.n. Riverside Salton Sea. [Imperial to Riverside Co] Comment
  UC857309  Cryptantha angustifolia P. A. Munz, D. Keck 1922-4-8 4744 Riverside 0.5 mi e Indio -9 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
  UCR246835  Cryptantha barbigera var. barbigera Jim Andre 2012-3-19 21305 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
  UCR234811  Cryptantha barbigera var. fergusoniae Jim Andre, Glenn L. Clifton 2011-2-22 17476 Riverside Coachella Valley, North Palm Springs c. 0.3 mi north of Hwy 111, at corner of San Rafael and Virginia Street 189 Comment
  UCR182317  Cryptantha corollata Mitch Provance 2003-4-5 6618 Riverside San Bernardino Valley, Glen Avon (near border with Fontana) along the NW base of the Jurupa Mountains, south of Philadelphia St. and just east of Country Village Rd 253 Comment
  UCR75100  Cryptantha costata A. C. Sanders, E. J. Lawlor 1992-4-3 12085 Riverside Sonoran (Colorado) Desert, 0.2 mi north of Hwy I-10 at the Wiley Well Rest Stop, c. 31 mi east of Desert Center. 122 Comment
  UCR127960  Cryptantha decipiens A. C. Sanders, K. C. Rose, D. Woodard 1995-3-15 16139 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, along Whitewater River wash between Windy Point and Hwy I-10, Coachella Valley 396 Comment
  JOTR29447  Cryptantha dumetorum La Doux, Tasha, Mike Bell 2006-3-8 1345 Riverside Joshua Tree National Park. Hayfield spring Comment
  SEINET10906620  Cryptantha flaccida David B. Dunn, Howard Brown; Elizabeth M. McClintock 1947-3-15 Dunn 2911 Riverside On same sheet as Dunn 2068, UMO 162037. Dry hillside by quadrat 4. Pushawalla Canyon biota. Indio Hills. Nutlets smooth, shining, 1.4 mm long. Comment
  PASA1985  Cryptantha intermedia 1928-3-3 Riverside near Whitewater Comment
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Jun 24 2016
  RSA495466  Cryptantha intermedia Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-18 2997 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  RSA633324  Cryptantha intermedia R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38079 -C Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  SBBG37501  Cryptantha intermedia R. N. Muller 1967-4-8 3 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
  UC24685  Cryptantha intermedia Geo. F. Reinhardt Jun 1897 Riverside San Jacinto Valley 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
  POM9604  Cryptantha intermedia I. M. Johnston 1920-5-8 s.n. Riverside Jurupa Mts, extreme west end. between Riverside and Ontario. Comment
  UCR249503  Cryptantha maritima T. B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-3-8 7289 Riverside Sonoran (Colorado) Desert, south of Hwy I-10, north of the Chuckwalla Mountains, Chuckwalla Valley Road c. 1.4 km west of its junction with Augustine Pass Road 137 Comment
  SDSU18693  Cryptantha maritima var. maritima Kristen Hasenstab, M. G. Simpson 2008-4-1 56 Riverside Joshua Tree National Park. 0.80 miles along trail to Mastodon Peak, from Cottonwood Springs Campground when approachind Mastodon Peak from the North portion of the trail. 948 Comment
  RSA721898  Cryptantha maritima var. pilosa J. Mark Porter, Orlando Mistretta 2003-6-5 13606 -A Riverside Chocolate Mountains. Chocolate Mountain Bombing and Gunnery Range. Unnamed canyon, S of Salt Creek, accessed via Siphon 21 of the Coachella Canal; fork running east, above the pour-off. 439 Comment
  SEINET12280852  Cryptantha micrantha Unknown 1936-1 12847 Riverside Colorado Desert 5 mi N of Palm Springs Comment
  UCR193309  Cryptantha muricata A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35570 Riverside Peninsular Range; San Jacinto Mtns., May Valley c. 1.25 mi SW of Fleming Ranch, slope below May Valley Rd. toward meadow on nameless tributary NW of Herkey Crk., north of Bonita Vista Rd. 1585 Comment
  RSA0079249  Cryptantha muricata var. jonesii D. L. Banks, S. D. Boyd 1995-5-3 261 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 512 Comment
  RSA0079417  Cryptantha muricata var. jonesii R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38079 B Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  SBBG101675  Cryptantha muricata var. muricata S. Boyd with R. Gentry 1991-5-30 6316 Riverside Murrieta, summit of Hogbacks on Gentry Experimental Farm 542 Comment
  RSA0079359  Cryptantha muricata var. muricata Steve Boyd, Rita Gentry 1991-5-30 6316 Riverside Murrieta, summit of Hogbacks on Gentry Experimental Farm. 543 Comment
  JOTR34086  Cryptantha nevadensis var. nevadensis La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2981 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; narrow canyon with loamy slopes and rocky outcrops; 2009 burn area, below Lost Horse Mine Comment
  UCR115350  Cryptantha pterocarya var. purpusii A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16293 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
  JOTR34026  Cryptantha utahensis La Doux, Tasha, M. Harding 2010-4-7 2913 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; in upper reaches of side canyon, approx. 1 mile north of park boundary Comment
  CAS-BOT-BC68028  Cryptogramma acrostichoides J. Ewan 1930-9-1 2165 Riverside Summit of Mt. San Jacinto 3293 Comment
  RSA394340  Cucurbita palmata L. C. Wheeler 1933-12-1 2286 Riverside 2 miles E Cabazon, San Gorgonio Pass 640 Comment
  UCD63684  Cupressus forbesii Daniel Sanchez-Mata; Richard Halsey 2006-6-28 s.n. Riverside Corona. Cleveland National Forest. Santa Ana Mountains. Indian Truck Trail from Corona. Between Main Divide and Santiago Peak summit. 1410 Comment
  SEINET4896208  Cupressus macrocarpa H. F. Thut 1971-1 Riverside near Redlands Comment
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Jul 19 2015
  SBBG30056  Cuscuta subinclusa L. C. Wheeler 1933-12-1 2284 Riverside San Gorgonio wash at Southern Pacific Railroad, San Gorgonio Pass 640 Comment
  UC520001  Cuscuta subinclusa Joseph Andorfer Ewan 1932-7-9 7497 Riverside Santa Ana River at Chino Creek; Santa Ana River Comment
  UCR6701  Cuscuta subinclusa O. F. Clarke 1967-11-4 671104- 3 Riverside Santa Ana River channel, 0.5 mi. upstream from Salt Lake Railroad Bridge. Comment
  UCR93074  Cycloloma atriplicifolium A. C. Sanders, S. Ogg 1994-7-28 15171 Riverside Santa Ana River between the Hwy 60 Bridge and the Mission Blvd. Bridge 243 Comment
  SEINET5624452 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2013-4-15 17726 Riverside Chuckwalla Mountains, just south of Corn Springs Wash, 250m east of its confluence with Irish Wash, 500m NW of Aztec Well, 74 km west of Blythe; Desert Center 7.5' USGS topographic quadrangle 641 Comment
  POM12621  Cylindropuntia echinocarpa M. French Gilman 1922-4-9 s.n. Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 457 Comment
  SD191510  Cylindropuntia prolifera John F. Green 2006-5-2 Riverside Peninsular Ranges: unincorporated area along San Diego Aqueduct Corridor, 1 km due west of Skunk Hollow, between Nicholas Rd., and Borel Rd., east of Murrieta Hot Springs. 420 Comment
  UCR246557  Cynanchum utahense Duncan S. Bell 2009-4-19 273 Riverside Arica Mountains, west side of range, c. 2.5 air miles SW of Priests Well 391 Comment
  RSA571307  Cynara cardunculus subsp. flavescens Steve Boyd, Darin L. Banks 1994-4-5 8255 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, in the vicinity of Oak Flats east of Verdugo Potrero. 762 Comment
  RSA0088364  Cynodon dactylon Robert Vargas 2016-4-9 20 Riverside LA basin, White water canyon reserve. 536 Comment
  RSA770305  Cynodon dactylon Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4490 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell., Between N33.94217, W116.64118 and N33.94722 W116.64311 487 Comment
  RSA544300  Cynodon dactylon Steve Boyd 1991-7-13 6419 -B Riverside Temescal Canyon, W base of Gavilan Hills, site of old glass factory between Temescal Wash & I-15, just S of Cajalco Road. Comment
  UCR110412  Cyperus erythrorhizos A. C. Sanders, D. Bramlet, Mihai Costea, T. B. Salvato 1999-10-15 23179 Riverside San Jacinto Valley, Mystic (San Jacinto) Lake, 1.4 mi. east of Jackrabbit Trail on Gilman Springs Rd., 1.4 mi. south of Eden Hot Spring 433 Comment
  RSA653218  Cyperus involucratus John Wallace 1991-5-18 31 Riverside Colorado River. Sec. 16, T2S, R24E. Approximately two miles south of Lost Lake Resort. Comment
  POM10386  Cyperus laevigatus F. M. Reed 1905-10-29 836 Riverside Chinatown ford on Santa Ana River. [Riverside, crossing of river below the old Chinatown site in lower Arroyo Tequesquite] Comment
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Oct 10 2009
  SBBG133574  Cyperus niger S. D. White, A. Carey, L. Archa 2004-8-5 10680 Riverside San Jacinto Mtn foothills, Soboba Indian Reservation, Indian Creek from confluence w/ San Jacinto River to +/- 2 mi upstream. 534 Comment
  UCR78635  Cyperus odoratus Scott D. White 1992-9-11 792 Riverside Vicinity of Gilman Hot Springs, north side of San Jacinto River & a thin strip trending north of the river & west of the Hot Springs 459 Comment
  SEINET7582457 Image available Cyperus odoratus Mary F. Spencer 1921-7-16 1688 Riverside Soboba Hot Springs near San Jacinto. 579 Comment
  SEINET944513  Dalbergia sissoo Fujio Shibuya 1983-1 s.n. Riverside Riverside Co., California. Off Highway 86 near Oasis. Comment
  POM8993  Dalea mollis Mary F. Spencer 1920-3-12 1491 Riverside Mecca. Colorado Desert -60 Comment
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Sep 7 2011
  SBBG68019  Dalea mollis unknown 1893-1 Riverside Agua Caliente [Palm Springs] Comment
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Jul 16 2010
  SEINET4034479  Dalea mollis Bigelow, Foster; Cazier 1968-1 sn Riverside 3 mi. south of Rice. Comment
  CLARK-A1656-854  Dalea parryi Jon Mark Stewart 1983-11-14 83-60 Riverside Santa Rosa Mountains 822 Comment
  UCR230920  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
  UCR94958  Datura wrightii Scott D. White 1996-9-22 4528 Riverside Perris Basin, Lakeview Mtns: north of Homeland, along Juniper Flats Road, c. 1.2 road miles north of intersection with State Hwy 74, unnamed drainage channel parallel to the road 500 Comment
  UC1608036  Deinandra kelloggii G. R. Ballmer 1992-6-23 92 -8 Riverside 0.8 mi e of junction with Redlands Blvd (San Timoteo Canyon Road) Comment
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Jul 14 2012
  SD232185  Deinandra mohavensis V. Soza, Steve Boyd and Neil Gilbert 2000-12-6 1063 b Riverside Peninsular Ranges, San Jaginto Mountains region: Alongside Highway 74, ca. 1 mile west of junction with Highway 243 (Mountain Center). 1310 Comment
  UCR266426  Deinandra paniculata D. E. Bramlet, Bill Wagner 2009-10-19 4403 Riverside Peninsular Range, Riverside, Sycamore Canyon Reserve, c. 0.75 km north of Allesandro Blvd., west of Sycamore Canyon Blvd., along dirt pole line road 470 Comment
  CLARK-A1528-782  Delphinium parishii Grace Sprague 1968-5-3 Riverside San Jacinto Mountains Comment
  RSA149642  Delphinium parishii Harlan Lewis, C. Epling 1941-5-7 s.n. Riverside 3 miles N of Cottonwood Spring, Joshua Tree Nat. Mon. Comment
  SEINET3075589 Image available Delphinium parryi Don Mitchell 1990-4-30 Riverside W side of Sage Road, ca. 0.5 mi S of intersection with Wilson Valley Road. 701 Comment
  UCSB12149  Delphinium parryi Suter, Richard 1961-5-7 Riverside Idylwild - Banning road in the San Jacinto Mountains; 6.9 miles south of its turnoff from U.S. Highway 60,70,99 at Banning 1280 Comment
  CAS-BOT-BC121437  Delphinium parryi subsp. parryi Marion L. Campbell 1921-3-26 57 Riverside Banning Comment
  CSUSB1746  Dendromecon rigida A. H. Wheeler 1974-7-21 Riverside Rd. Banning- Idyllwild- nearest Banning. 1219 Comment
  HSC16738  Dendromecon rigida C. L. Hitchcock 1966-3-15 24160 Riverside 3 mi. E of Glen Ivy Hot Springs Comment
  JEPS10814  Descurainia obtusa subsp. adenophora H. M. Hall Jun 1901 2152 Riverside Vandeventer Flat; San Jacinto Mountains 1371 Comment
  POM13163  Descurainia obtusa subsp. adenophora P. A. Munz 1922-6-30 5906 Riverside Santa Rosa, Santa Rosa Mtns. About deserted Indian village. 1982 Comment
  SBBG28426  Descurainia pinnata D. Myrick 1964-4-30 835 Riverside Palms to Pines (St Hwy 74), 10 mi W of Palm Desert Comment
  RSA612611  Descurainia pinnata subsp. halictorum D. L. Banks, Victor Steinmann 1997-3-13 1496 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
  UCR144102  Dichanthelium acuminatum subsp. fasciculatum Scott D. White, Michael Honer 2003-6-3 9494 Riverside Peninsular Ranges; Santa Ana Mountains region, Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary 579 Comment
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May 3 2007
  UCR155070  Dichelostemma capitatum A. C. Sanders, Kelly Volansky 2005-3-17 29215 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
  UCR166175  Dichelostemma capitatum John F. Green 2005-2-10 s.n. Riverside Peninsular Range, E of Temecula, Rancho California, SE of intersection of Mesa Verdugo and Calle Vista, N of Pauba Valley and south of Buck Mesa 430 Comment
  CAS-BOT-BC500849  Dichelostemma capitatum F. O. Ballou 1926-2-28 s.n. Riverside Murray Canyon Comment
  RSA249841  Dichelostemma capitatum subsp. capitatum Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38106 Riverside San Jacinto Mountains: San Bernardino National Forest. Woods above James Reserve. 1676 Comment
  SEINET156510  Dichelostemma pulchellum Norman C. Cooper 1944-4-8 1093 Riverside Andreas Canyon. 457 Comment
  RSA501045A  Dichelostemma pulchellum var. pulchellum Steve Boyd, Timothy S. Ross, L. Arnseth 1989-4-1 3166 A Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  CAS-BOT-BC292200  Dicoria canescens W. R. Dudley 1903-12-1 s.n. Riverside Near Palm Springs Comment
  UC501500  Dicoria canescens Frank W. Peirson 1924-12-30 5425 Riverside 1000 Palms Canyon 121 Comment
  CAS-BOT-BC150878  Diplacus X australis Ynez Whilton Winblad 1941-5-27 s.n. Riverside San Juan Mts., San Juan Canyon, Highway 74 609 Comment
  SD137608  Diplacus aurantiacus Darin L. Banks 1995-3-30 132 Riverside Cleveland national Forest; Agua Tibia Wilderness Area. N slope of Agua Tibia Mountain. W of the Dripping Springs Alcove, on the Woodchuck Trail 633 Comment
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Mar 2 2013
  RSA0019291  Diplacus brevipes Percy C. Everett, Lee W. Lenz, E. K. Balls 1952-7-1 17274 Riverside 1.2 mi. s.e. of Lake Fulmore on hwy from Banning to Idyllwild. 1280 Comment
  SEINET270935  Diplacus fremontii Richard J. Shaw 1958-1 1095 Riverside Joshua Tree National Monument; Main highway approximately 10 miles from White Tank Campground. Comment
  CAS-BOT-BC150681  Diplacus longiflorus C. L. Hitchcock 1940-4-12 6044 Riverside 8 mi. northwest of Elsinore 457 Comment
  RSA644217  Ditaxis lanceolata V. W. Steinmann, P. I. Moscosa, T. S. Ross 1998-4-14 1366 Riverside Orocopia Mountains, 1.5 km southwest of the Hayfield exit of I-10. Along a small wash on north-facing slope. 182 Comment
  RSA690981  Ditaxis lanceolata Scott D. White, Michael Honer 2003-5-14 9306 -B Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  HSC47312  Ditaxis neomexicana R. W. Spjut 1978-5-17 5042 Riverside Colorado Desert, N face of Chuckawalla Mtns., 2.7 mi. S of Desert Center 335 Comment
  JOTR35319  Ditaxis neomexicana Harding, Mitzi, Mark Wheeler 2012-2-28 87 Riverside Joshua Tree National Park. Southeast Coxcomb Mountains; eastern slopes of southern tip of range (Stop 1) 177 Comment
  VVC648  Ditaxis neomexicana P. J. MacKay 1997-2-8 103 Riverside Sonoran Desert, Palm Springs, Murray Canyon; at edge of creek btw palm groves 243 Comment
  JEPS52437  Ditaxis serrata W. L. Jepson 1928-4-25 12630 Riverside Pinto Basin, S Mohave Desert 822 Comment
  JEPS52443  Ditaxis serrata Marjorie D. Clary 1932-5-22 928 Riverside Hexie Mt. n side Colorado Desert Comment
  RSA776844  Ditaxis serrata Amber Swanson 2011-3-18 230 Riverside Corn Springs Trail near campground in the Chuckwalla Mtns Comment
  UCR274222  Ditaxis serrata var. californica Duncan S. Bell, Evan Meyer 2014-10-28 7660 Riverside Santa Rosa Mountains, the foot of the mountains between Toro Canyon and Martinez Canyon 169 Comment
  RSA793973  Ditaxis serrata var. serrata Duncan S. Bell, John Anderson, Kim Clark, Keir Morse 2012-11-10 4352 Riverside Big Maria Mountains: southeast section of range, approximately 0.6 air miles northwest of Palo Verde Dam. 97 Comment
  HSC6728  Dithyrea californica R. A. Eagle 1964-3-28 27 Riverside 1 mi. this side of Palm Springs Comment
  JOTR33801  Dithyrea californica La Doux, Tasha, B. Truesdell 2007-11-9 3299 Riverside Joshua Tree National Park. Pinto Basin; Fried Liver Wash, along Route 11 where the wash crosses the road (STOP1) 532 Comment
  JOTR38664  Dithyrea californica Hodges, Stephen R. 2017-2-1 670 Riverside Joshua Tree National Park. Eagle Mountains, just inside the park boundary on the road to Pinto Wells Comment
  RSA676143  Dithyrea californica Scott D. White 2001-4-12 8301 Riverside Colorado Desert: Shaver s Valley. South of the I-10 Freeway, ca. 15 miles east of Indio jtn. I-10 / SR 111. Bajadas and washes adjacent to powerline access roads at unnamed freeway exit accessing pump station. 320 Comment
  SBBG72431  Dithyrea californica R. C. and J. R. Robbins 1933-2-17 Riverside 20 mi S of Indio Comment
  CAS-BOT-BC412630  Dodecahema leptoceras Mrs. J. D. Abrams 1901-5-1 s.n. Riverside Elsinore Comment
  RSA574736  Dodecatheon clevelandii Steve Boyd 1981-3-2 s.n. Riverside Gavilan Hills region, summit of Estelle Mountain near site of old fire lookout. 823 Comment
  RSA615142  Dodecatheon clevelandii A. C. Sanders, O. F. Clarke, H. Forster 1997-3-2 19762 Riverside Box Springs Mountains E side of the range in Pigeon Pass area, above W end of Quail Call Drive, in canyon just west of section line. 610 Comment
  UCR138806  Dodecatheon clevelandii subsp. clevelandii D. L. Banks, J. Moreno 1997-2-5 1249 Riverside Agua Tibia Mtns., NW Palomar Mountains: Pechanga Indian Reservation, along Magee Truck Trail between the headwaters of Pala Creek at the southern extremity of the Reservation to the Riverside/San Diego County line border 482 Comment
  RSA524424  Draba cuneifolia Steve Boyd, Timothy S. Ross, L. Arnseth, J. Bonilla 1990-4-3 4120 Riverside Vail Lake area, upper benches and adjacent slopes of the E flank of 'Big' Oak Mountain., just S of the E summit. 610 Comment
  POM11499  Draba saxosa P. A. Munz 1922-7-6 6021 Riverside Between Hidden Lake and Round Valley. 2561 Comment
  RSA40400  Dryopteris arguta Sara Schenck 1948-02 s.n. Riverside small valley near Desert Queen Mill Site, Joshua Tree National Monument, Little San Bernardino Mountains. Comment
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Nov 6 2011
  JEPS49886  Dudleya lanceolata W. L. Jepson 1914-5-25 6069 Riverside San Gorgonio Pass 548 Comment
  CAS-BOT-BC416941  Dudleya pulverulenta L. R. Abrams 1908-7-21 s.n. Riverside Elsinore Comment
  UCR25804  Dudleya saxosa John C. Roos 1937-4-18 1284 Riverside San Gorgonio Pass, Near Cabazon Comment
  RSA341995  Dudleya saxosa subsp. aloides R. F. Thorne 1980-4-16 54058 Riverside San Bernardino Mts: Sandy beach along Whitewater River, E of bridge and levee and below W-facing bluff 412 Comment
  SEINET3412075 Image available Echinocereus engelmannii var. engelmannii Wendy C. Hodgson, Andrew Salywon, Liz Slauson, Brandi Eide 2013-6-14 28522 Riverside Santa Rosa Mountains, off of highway 74 south of Palm Desert. 1236 Comment
  SACT001024  Echinochloa colona Malcolm Nobs, S. Smith 1948-9-3 Riverside 2 miles north of Indio. Bases of stems procumbent, rooting at nodes. Dense shade. Abundant. Comment
  UCR113923  Echinochloa colona Mitch Provance, A. C. Sanders 2000-7-4 2097 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  SEINET3928569  Echinochloa crus-galli A. C. Sanders, D. Bramlet 1999-10-15 23170 Riverside San Jacinto Valley: Mystic (San Jacinto) Lake, 1.4 miles E of Jackrabbit Trail on Gilman Springs Rd., 1.4 miles S of Eden Hot Spr.; 0 433 Comment
  UCR189543  Echinochloa crus-galli Fred M. Roberts, S. Leatherman 2007-9-19 6580 Riverside Santa Ana Canyon, Santa Ana River, across from Green River Golf Course, 0.15 km W of Green River Road bridge 128 Comment
  JEPS32219  Echinodorus berteroi S. B. Parish 1891-11-3 2246 Riverside Elsinore Lake Comment
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Aug 8 2010
  RSA357160  Elatine chilensis R. F. Thorne, E. W. Lathrop 1975-5-25 45546 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro 609 Comment
  JOTR34102  Eleocharis macrostachya La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2608 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam; Small riparian pond environment with seasonally submerged muddy banks, surrounded by boulder outcrops (Stop 4) 1301 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
  POM10521  Eleocharis montevidensis var. montevidensis C. F. Baker 1909-05 s.n. Riverside Fairmont Hill. Comment
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Jul 27 2008
  UCR178328  Eleocharis parishii T. B. Salvato, Tracy Tennant 1998-7-18 MOR- 602 Riverside San Bernardino Mtns., Morongo Indian Reservation, upper Potrero Canyon, sag pond at Burro Flats, tree stand P-10 1098 Comment
  RSA78221  Eleusine indica J. C. Roos, E. C. Jaeger 1952-10-8 5899 Riverside Riverside. 259 Comment
  LA14815  Elymus glaucus Carl Epling; William Robison 1935-6-30 sn Riverside north fork San Jacinto River Comment
  UCR156351  Elymus glaucus T. B. Salvato, Kent Beaman 2005-5-16 876 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
  LA14869  Elymus triticoides F. M. Reed; 1907-5-26 1363 Riverside Spring Brook near foot of Rubidoux Mt Comment
  UCR26528  Elymus triticoides A. C. Sanders, S. Hagopian 1981-5-20 2133 Riverside Agua Tibia Mountains Area, Wolf Valley, SE of Temecula, at the junction of Road S16 with the road to the Pechanga Indian Reservation 351 Comment
  CHSC101910  Emmenanthe penduliflora Steve Boyd; Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10461 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
  RSA180275  Emmenanthe penduliflora E. W. Lathrop 1965-5-18 5750 Riverside 8 miles W of Murrieta. 610 Comment
  UC1929975  Emmenanthe penduliflora Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10461 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
  UCR116927  Emmenanthe penduliflora A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-9 24216 Riverside Perris-Aguanga Basin region, Hemet, SE of intersection of State Street and Gibbel Rd., small hill (1684 ft. at summit) at east end of Diamond Valley, 1 mi. SSW of Hemet Butte 513 Comment
  POM9612  Emmenanthe penduliflora H. M. Hall 1902-4-26 2986 Riverside Vicinity of Riverside. 457 Comment
  JEPS34123  Encelia actoni Marjorie D. Clary 1933-5-7 2680 Riverside road to Dos Palmas Spring; Colorado Desert, Santa Rosa Mountains 1066 Comment
  UCR232047  Encelia californica John F. Green 2008-4-15 0408- 10 Riverside Peninsular Range; Perris-Aguanga Valley, Moreno Valley/Mead Valley area, square parcel 0.8 km on a side, between Nandina Ave. and Oleander Ave., east of Day St. 523 Comment
  HSC66629  Encelia farinosa Christopher Davidson 1979-4-4 7731 Riverside Orocopia Mtns., E of Box Canyon on Box Canyon Rd., 15.1 mi. E of Mecca, dirt road to the SE 579 Comment
  JEPS23538  Encelia farinosa Peter H. Raven 1958-2-15 11587 Riverside along United States Highway 60 (8.7 mi e of road to Wiley Wells) Comment
  RSA0094188  Encelia farinosa Duncan S. Bell, Evan Meyer 2014-10-29 7685 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
  RSA586839  Encelia farinosa D. L. Banks, Peter Morrell 1995-5-4 0306 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, N of the Wildhorse Trail, on metasedimentary hills N of Wildhorse Peak. 622 Comment
  RSA670063  Encelia farinosa Donald W. Kyhos 1965-3-13 65 -111 Riverside 6.2 miles west of Junction of Hwy 78 and Hwy 60-70 near Blythe Comment
  POM19630  Encelia farinosa var. farinosa Mary F. Spencer 1923-6-5 2207 Riverside Soboba Hot Springs, near San Jacinto. 549 Comment
  RSA486454  Encelia farinosa var. farinosa Richard Noyes, L. Arnseth 1988-10-30 762 Riverside Lake Mathews vicinity, Dry sandy margin of Cajalco road along southern boundary of Lake. 460 Comment
  POM289822  Encelia frutescens Lyman Benson 1933-3-31 4191 Riverside Salton Sea-Imperial Co. line. 61 Comment
  RSA781914  Encelia frutescens Duncan S. Bell 2010-5-1 896 A Riverside Arica Mountains: northwest section of project area, approximately 10.5 air miles southwest of the ghost town of Rice, and approximately 2.6 air miles south of the junction of Highway 62 and the aqueduct access road. 291 Comment
  JOTR34119  Ephedra californica La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2739 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Granitic bedrock slopes and outcrops (Stop 4) Comment
  SEINET10532227  Ephedra californica David B. Dunn 1946-2-22 Dunn 1953 -B Riverside Collected on N side of Whitewater Canyon in Colorado Desert. Comment
  RSA383801  Ephedra nevadensis M. B. Dunkle 1935-3-31 4444 Riverside Cottonwood Springs. Colorado Desert 701 Comment
  UCSB11472  Ephedra nevadensis Dearing, Hugh; Dearing, Margaret 1942-3-10 Riverside Dos Palmas Canon near Palms to Pines Highway Comment
  JOTR35160  Ephedra viridis La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 3269 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam loop trail; Pine-oak woodland among granitic boulder outcrops and narrow drainage system (Stop 3) 1295 Comment
  UC1280921  Ephedra viridis H. E. McMinn 1937-5-3 4490 Riverside approaching Cottonwood Mountain from Pinto Basin Comment
  UCR161443  Epilobium canum A. C. Sanders, Mike Misenhelter 2005-9-20 31679 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
  SDSU13704  Epilobium canum subsp. canum James C. Dice, J. DeWald 1987-9-28 727 Riverside North side of Temecula Gorge, ca. 4.2 km ENE of Gavilan Mountain. T8S, R3W, northeast 1/4 of northeast 1/4 of section 27. 335 Comment
  UCR138594  Epilobium canum subsp. canum D. L. Banks 1996-11-7 1216 Riverside Agua Tibia Mountains, NW Palomar Mountains: Pechanga Indian Reservation, east of San Gabriel Church. At the end of the main road in the Reservation, 1.6 km east of the roads crossing with Pechanga Creek on the N fork of the creek, at the E end of the Reservation 415 Comment
  CAS-BOT-BC5226  Epilobium canum subsp. latifolium Winifern W. Swarth 1914-9-9 s.n. Riverside San Jacinto Mts. 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
  UCR54427  Epilobium canum subsp. latifolium A. C. Sanders, E. J. Lawlor 1988-10-22 8734 Riverside Santa Rosa Mountains, Pinyon Flats area, along the trail from the Dolomite Mine to Horsethief Creek 1200 Comment
  RSA448475  Epilobium ciliatum Louis C. Wheeler 1932-7-9 928 Riverside Santa Ana River at Chino Creek. 152 Comment
  SD181430  Epilobium densiflorum Scott D. White 2000-8-5 8108 Riverside San Jacinto Mountains: Near Mountain Center. Unnamed ephemeral drainage (tributary to South Fork, San Jacinto River). 1402 Comment
  RSA736382  Epilobium pygmaeum Scott D. White, Justin M. Wood 2008-5-1 11923 Riverside Perris Basin: I-215 freeway corridor, between freeway and frontage road, S of Scott Rd. 470 Comment
  POM12731  Epipactis gigantea Philip A. Munz 1922-7-1 5934 Riverside Santa Rosa Mountains, Old Nicholas Canyon. 1463 Comment
  RSA6079  Epipactis gigantea Carl B. Wolf 1932-5-25 3662 Riverside Flat at mouth of east fork of Snow Creek, N Base of San Jacinto Mountains 671 Comment
  UC980844  Epipactis gigantea Fred L. Jones 1953-7-17 90 Riverside Santa Rosa Mountains; at spring 609 Comment
  POM9736  Equisetum hyemale var. affine E. C. Jaeger 1921-6-18 s.n. Riverside Tahquitz Creek. San Jacinto Mountains 2134 Comment
  RSA627506  Equisetum hyemale var. affine Scott D. White 1998-7-31 6947 (unic.) Riverside Idyllwild Area: Strawberry Creek between crossing at Circle Drive and Hymber Park. 1707 Comment
  RSA741376  Equisetum laevigatum Scott D. White, Justin M. Wood 2008-5-15 11977 Riverside Johnson Meadow. 1415 Comment
  RSA651791  Eragrostis D. Gordon 1952-7-28 s.n. Riverside near Hemet. Comment
  RSA737222  Eragrostis cilianensis Justin M. Wood 2008-9-30 181 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  UCR26522  Eragrostis cilianensis A. C. Sanders, S. Hagopian 1981-5-20 2155 Riverside Peninsular Range, Wolf Valley, SE of Temecula, NE of State Hwy S16 along road to sod farm 329 Comment
  UCSB51372  Eragrostis cilianensis Roos, John 1965-7-7 Riverside San Jacinto Comment
  RSA653239  Eragrostis mexicana subsp. virescens Mitch Provance, A. C. Sanders 2000-7-4 2081 Riverside Riverside: Santa Ana River Wash, between the Market St. and Riverside Ave crossings. 244 Comment
  UCD64344  Eragrostis pectinacea var. pectinacea Beecher Crampton 1964-6-19 7013 Riverside UC-Riverside. Experimental area; plant introduction nursery. Comment
  UC64037  Eremalche exilis H. M. Hall 1898-3-6 871 Riverside Point of Rocks near Riverside Comment
  RSA432730  Eremalche rotundifolia Anstruther Davidson 1930-5-27 s.n. Riverside 50 miles East of Colorado Desert Comment
  RSA192164  Eremocarpus setiger E. W. Lathrop 1959-9-11 4649 Riverside 14 miles west of Murrieta. Comment
  JEPS22518  Eremothera boothii subsp. condensata Rimo Bacigalupi with Paul Hutchison 1958-2-19 6192 Riverside 9.4 mi n Blythe; base of Big Maria Mts. 167 Comment
  CAS-BOT-BC514306  Eriastrum densifolium subsp. austromontanum H. M. Hall 1901-7-1 2384 Riverside San Jacinto Mountains 1584 Comment
  RSA0105464  Eriastrum densifolium subsp. densifolium Julian P. Donahue 1984-10-6 90405 Riverside Pinyon Crest, Pinyon Flat, between San Jacinto & Santa Rosa Mts. 1249 Comment
  POM8324  Eriastrum eremicum Mary F. Spencer 1918-5-7 s.n. Riverside San Jacinto Mountains 1524 Comment
  UCSB41261  Eriastrum eremicum Cowan, Clark 1978-6-23 Riverside 6.3 mi. S. on Hwy 74 from its jct. with Hwy 111 at Indian Wells; Whittaker transect #W 219 480 Comment
  RSA0121559  Eriastrum sapphirinum subsp. dasyanthum Scott D. White 1997-5-25 5231 Riverside Bautista Canyon, Hixon Trail (USFS No. 2E43), between trailhead at Bautista Cyn. Rd. and intermittent stream crossing at ca. 3200 ft. 793 Comment
  RSA0121588  Eriastrum sapphirinum subsp. dasyanthum A. C. Sanders, T. B. Salvato 2000-5-25 23398 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
  POM295632  Ericameria cuneata var. spathulata Lyman Benson 1952-12-29 15088 Riverside White Tanks, Joshua Tree National Monument, 915 Comment
  SEINET10757987  Ericameria laricifolia David B. Dunn 1947-10-9 Dunn 3531 Riverside Joshua Tree National Monument at campground area by Hidden Valley. Comment
  POM359402  Ericameria linearifolia N. R. Zabriskie, W. M. Zabriskie 1971-4-9 372 Riverside Deep Canyon, north slope Santa Rosa Mountains. Ca. 2 miles on water service road south of Highway 74. 1311 Comment
  RSA1786  Ericameria linearifolia C. B. Wolf 1931-5-11 1951 Riverside Near Pipe Creek, above Hemet Valley, San Jacinto Mountains 1677 Comment
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Mar 24 2011
  SD84911  Ericameria linearifolia Nancy Ryan Zabriskie, Walter Zabriskie 1971-4-9 372 Riverside 2.0 miles up water service road leading south from Highway 72, Deep Canyon. 1310 Comment
  UCR49992  Ericameria palmeri var. pachylepis S. J. Myers 1987-10-27 s.n. Riverside Peninsular Range; Santa Ana Mtns., c. 3 mi. west of Temecula, NE portion of Santa Rosa Plateau, 3/4 mi. east of Walker Basin 488 Comment
  LA202515  Ericameria pinifolia F. H. Lewis; 1939-11-22 1032 Riverside San Jacinto Mountains, Hemet Lake 1371 Comment
  POM183885  Ericameria pinifolia P. A. Munz 1932-10-16 12841 Riverside Palm Creek, Santa Rosa Mountains. 1463 Comment
  SDSU12965  Erigeron canadensis Michael G. Simpson 1999-10-27 2036 Riverside Adjacent to Santa Margarita river, Santa Margarita Ecological Reserve, San Diego State University, ca.1/2 mile from Southside Facilities. 152 Comment
  POM14970  Erigeron foliosus var. foliosus Mary F. Spencer 1922-6-29 1274 Riverside Brooks Camp, San Jacinto Mt. 1219 Comment
  UCR19767  Erigeron foliosus var. foliosus W. W. Mayhew 1977-7-5 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1768 Comment
  UCR240769  Erigeron philadelphicus Tracy Tennant, Jeffrey Ross 1998-5-21 MOR- 228 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Hathaway Creek Canyon, NW of Cabazon 976 Comment
  POM49855  Eriodictyon crassifolium P. A. Munz, I. M. Johnston 1924-7-29 8873 Riverside Roadside in chaparral near poppet Flat Comment
  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
  RSA770680  Eriodictyon trichocalyx var. trichocalyx Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4757 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm)., Between N33.97538, W116.65161 and N33.97538 and W116.65120 604 Comment
  UCR193863  Eriogonum A. C. Sanders, Mitch Provance 2008-7-11 35816 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
  UC6234  Eriogonum apiculatum H. M. Hall 1901-6 2364 Riverside Tauquitz Valley San Jacinto Mountains, Tauquitz Valley 2438 Comment
  UC6237  Eriogonum apiculatum H. M. Hall 1897-8-13 849 Riverside from type locality, San Jacinto Mt. San Jacinto Mt. 1828 Comment
  UC729845  Eriogonum apiculatum Carl B. Wolf 1932-8-5 3938 Riverside along trail from Tahquitz Valley to San Jacinto Peak; San Jacinto Mts. 2621 Comment
  JOTR31164  Eriogonum davidsonii La Doux, Tasha 2009-6-3 1870 Riverside Joshua Tree National Park. (Stop 6): Little San Bernardino Mountains, Covington Flats Area, dry ephemeral wash near parking area 1426 Comment
  UCR175171  Eriogonum davidsonii Jim Andre 2006-4-26 6770 Riverside South Mojave Desert, Joshua Tree National Park: west of upper Long Canyon, c. 5 mi south of the radio tower and NE corner (boundary) of the park 1325 Comment
  UCSB37947  Eriogonum deflexum Mayers, Anna 1978-4-24 Riverside 4.5 km south of Palm Springs Araby Canyon, south of Araby Drive 215 Comment
  RSA749235  Eriogonum deflexum var. deflexum Robert F. Thorne, Rolf Dahlgren, Gertrud Dahlgren 1979-8-23 53612 Riverside Corronwood Springs Area Comment
  JOTR30673  Eriogonum fasciculatum var. flavoviride Andre, Jim, Tasha La Doux 2008-3-21 8829 Riverside Joshua Tree National Park. Upper Cottonwood Cyn, approximately 2 mi. S. of Cottonwood Visitor's Center 880 Comment
  UC1032054  Eriogonum fasciculatum var. foliolosum A. Lewis May 1934 435 Riverside Los Pinos Peak Cleveland National Forest, Elsinore Quadrangle, Los Pinos Pe Comment
  RSA766104  Eriogonum fasciculatum var. polifolium Marjorie D. Clary 1932-5-22 1027 Riverside Berdoo Canyon, Little San Bernardino Mts. 1159 Comment
  SD229220  Eriogonum fasciculatum var. polifolium Dick Schwenkmeyer, Collection made by Tony Harper 2013-5-8 884 Riverside Little Paradise Camp in Palm Canyon, approx. 8 miles S. of Cathedral City 869 Comment
  SEINET239005  Eriogonum fasciculatum var. polifolium B. Pitzer 1997-4-20 3195 Riverside Lakeview Mtns: Warren Road just before it connects with Pulsar View Rd ca. 1 air mile N of Juniper Flats Rd. [UTM 10km 518 Comment
  UCSB1524  Eriogonum fasciculatum var. polifolium Gray, Caroline 1956-4-14 Riverside The Devil's Garden; 3 mi off Hwy 99 Comment
  RSA191431  Eriogonum gracile var. gracile E. W. Lathrop, Robert F. Thorne 1967-9-26 6647 Riverside 6 miles NW of Murrieta. Comment
  UCR278854  Eriogonum gracile var. gracile Mitch Provance 2012-7-14 712- 23 Riverside San Gorgonio Pass, Banning, remnant of Montgomery Creek, N side of Westward Ave, between Lovell St. and April Ln. 716 Comment
  RSA393249  Eriogonum gracile var. incultum I. W. Clokey 1935-8-21 6593 Riverside Hemet Lake 1300 Comment
  UC1929522  Eriogonum gracile var. incultum LeRoy Gross, Elizabeth A. Kempton 2008-8-21 3572 Riverside [Peninsular Ranges; San Jacinto Mountains region]; Southern spur of Pine Meadow, southeast of Highway 371, northwest of Santa Rosa Summit. Survey north side of Highway 74. Near 1477 Comment
  RSA759116  Eriogonum gracile var. incultum Robt. Allen, Linnell R. Allen 2008-7-27 s.n. Riverside South Main Divide Road, 4.7 road mi. SE of junction with Ortega Hwy (SR74). Just S of the gated entrances to Rancho Capistrano housing developments. 938 Comment
  UCSB1447  Eriogonum inflatum Van Leeuwen, Henry 1957-4-12 Riverside Whitewater Canyon; 1 mile from US 60 Comment
  UC472765  Eriogonum inflatum var. deflatum M. F. Spencer 1918-4-13 Riverside In arenis, Palm Springs Colorado Desert, Palm Springs 125 Comment
  JEPS56845  Eriogonum inflatum var. inflatum W. L. Jepson 1914-5-18 6017 Riverside stream bed near County Well (on grade from Pinyon Well to Indio) 304 Comment
  UCR122585  Eriogonum molestum George K. Helmkamp 1995-11-16 101 Riverside San Jacinto Mtns, Along Calif. Hwy 243, 0.25-0.50 mi south of Bay Tree Spring (about 0.9 mi north of Lake Fulmor) 1616 Comment
  JOTR32479  Eriogonum nidularium Herskovits, Tasya 2011-5-25 15 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
  UC217840  Eriogonum nudum var. pauciflorum P. A. Munz 5989 Riverside Tahquitz Valley San Jacinto Mts., Tahquitz Valley 2225 Comment
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Sep 8 2011
  RSA0097128  Eriogonum palmerianum Marc A. Baker 2015-7-6 18396 Riverside South side of the San Bernardino Mountains, 9.6 km west of Whitewater River, 3.3 km north of the San Gorgonio River. 562 Comment
  CHSC26394  Eriogonum pusillum Dieter H. Wilken 1966-3-26 771 Riverside Whitewater Canyon along the eastern periphery. 609 Comment
  UCR4237  Eriogonum pusillum K. S. Gill 1965-4-17 s.n. Riverside Sonoran (Colorado) Desert, Whitewater Canyon 5 mi north of Hwy 60 610 Comment
  UC77632  Eriogonum reniforme C. R. Orcutt 1889-4-1 Riverside Colorado Desert 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-BC263503  Eriogonum thomasii Aven Nelson; Ruth A. Nelson 1939-3-30 3351 Riverside Near Desert Center north of Chuckwalla Mts. Comment
  CAS-BOT-BC263515  Eriogonum thomasii Marcus E. Jones 1926-2-16 s.n. Riverside Near Shaver's Well, Colorado Desert Comment
  POM128742  Eriogonum thomasii F. W. Peirson 1927-4-12 7171 Riverside Painted Canyon. Comment
  UC666503  Eriogonum thomasii Annie M. Alexander and Louise Kellogg 1941-5-28 2260 Riverside Metropolitan Aqueduct road e Hayfield Comment
  RSA0009729  Eriogonum thomasii Marcus E. Jones 1926-2-16 s.n. Riverside Shaver's Well Comment
  POM47238  Eriogonum thurberi Mary F. Spencer 1920-4-5 s.n. Riverside Palm Springs, Colorado Desert. 122 Comment
  RSA766489  Eriogonum thurberi E. L. Peterson 1930-5-30 5653 Riverside Warner's Ranch at Whitewater. 366 Comment
  UCR59535  Eriogonum thurberi Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3561 Riverside Peninsular Ranges; Palomar Mountains region, Vail Lake Area, along Arroyo Seco drainage from junction with Kolb Creek, S to within 0.25 mi of Hwy 79 457 Comment
  RSA766491  Eriogonum trichopes Alice Hutchinson 1931-09 6853 Riverside Between Desert Center and Blythe 122 Comment
  UCR214168  Eriogonum trichopes T. B. Salvato 2010-4-20 4064 Riverside Sonoran (Colorado) Desert, alluvial slope between the McCoy Mountains and McCoy Wash, c. 14 mi northwest of Blythe 189 Comment
  UCR279401  Eriogonum trichopes A. C. Sanders, Jim Malusa 2017-3-25 43022 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Arroyo Seco, 3.5-4 km south of Augustine Pass, 100-200 m S of Bradshaw Trail, c. 1.5 km N of Imperial Co. line 652 Comment
  RSA65992  Eriogonum umbellatum subsp. munzii F. W. Peirson 1924-7-28 5014 Riverside Pine Flats Camp 1799 Comment
  HSC17375  Eriogonum umbellatum var. munzii R. A. Eagle 1963-6-30 5 Riverside San Jacinto Mtns., Azalea Trails Girl Scout Camp Comment
  CLARK-A1528-3722  Eriogonum wrightii John C. Roos 1965-9-26 Riverside Palm Springs Station Comment
  RSA785069  Eriogonum wrightii var. membranaceum Anna Kostikova, Glenn Litsios, Sarah Burgy, Steve Boyd 2010-6-20 77 Riverside Belvedere road, turn from Hwy 74, uphill towards white rocks. Comment
  UCR24325  Eriogonum wrightii var. nodosum John C. Roos 1943-10-16 2741 Riverside Southern Mojave Desert, Falcon Flats, Little San Bernardino Mtns 1524 Comment
  SBBG64297  Eriogonum wrightii var. subscaposum R. Hoffmann 1929-9-10 Riverside San Jacinto Mtns 2438 Comment
  CAS-BOT-BC297338  Eriophyllum confertiflorum Philip A. Munz 1937-5-30 15096 Riverside N of Vandeventer Flat, Santa Rosa Mts 1676 Comment
  RSA494630  Eriophyllum confertiflorum Maureen H. Pendleton 1987-5-20 s.n. Riverside Ca. 0.8 mi. (airline) WSW of town of Anza on Terwilliger Rd. 1280 Comment
  RSA701749  Eriophyllum confertiflorum Steve Boyd, Valerie L. Soza 2004-6-22 11550 Riverside Western flank of the range, vicinity of Alvin Meadows and Chimney Flats, west of Idyllwild along forest service road 5N13 near 5N06. 1463 Comment
  UCD132157  Eriophyllum confertiflorum E. W. Lathrop Date Unknown 6420 Riverside Corona, Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
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Jun 16 2013
  UCR177115  Eriophyllum confertiflorum Tracy Tennant, Jeffrey Ross 1998-3-10 MOR- 1107 Riverside San Bernardino Mtns., Morongo Indian Reservation, Potrero Canyon 1037 Comment
  RSA604747  Eriophyllum multicaule A. C. Sanders 1995-4-16 16559 Riverside Glen Avon: Jurupa Hills (draining toward Fontana), Pyrite St. Canyon. 335 Comment
  RSA688836  Eriophyllum multicaule Scott D. White, Michael Honer 2003-6-17 9545 Riverside S Perris Basin: Murrieta. Interstate 215 / Clinton Keith interchange. 457 Comment
  UCR48413  Eriophyllum multicaule Steve Boyd 1986-4-22 1741 Riverside Temescal Canyon, stable alluvial benches of Indian Wash just south of Interstate Hwy 15 Comment
  UCR94255  Eriophyllum multicaule Scott D. White 1996-4-14 3928 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
  RSA92388  Eriophyllum multicaule F. W. Peirson 1914-04 1384 Riverside Whitewater at head of Coachella Valley. Comment
  POM14085  Eriophyllum wallacei P. A. Munz, D. D. Keck 1922-4-14 4981 Riverside 10 mi. west of Indian Wells. Along the Whitewater Wash. 91 Comment
  RSA680848B  Erodium botrys Scott D. White, Michael Honer 2003-4-2 8905 Riverside Temescal Valley: Just west of I-15 Freeway and northeast of Lawson Dr. 305 Comment
  SEINET269332  Erodium cicutarium Karen Kirtland 1993-6-19 Riverside San Jacinto River Valley: along I-215 between 4th St. (Perris) and approximately 0.25 miles south of the San Jacinto Riv 430 Comment
  UC71993  Erodium macrophyllum Miss M. A. King May 1893 Riverside between Menifee and Perris Comment
  CLARK-A1528-4856  Erodium moschatum John C. Roos 1937-5-2 1402 Riverside Riverside Comment
  UCR33575  Erodium texanum Sears 1978-3-16 813 Riverside Sonoran (Colorado) Desert, 3.5 mi SE of Midland 244 Comment
  CSUSB1404  Erysimum capitatum Robin Maetche 1971-5-19 S. N. Riverside Idyllwilde city limits Comment
  RSA651254  Erysimum capitatum Diane M. Ramirez 1983-5-15 23 Riverside Poppet Flat Divide Truck Trail, 1 mi S of junction with CA Hwy 243, S of Banning. Comment
  SDSU2406  Erysimum capitatum M. De Lisle 1962-7-28 20 Riverside Black Mtn, campgrounds Forest floor, Montane forest. 2347 Comment
  SBBG56025  Erysimum capitatum var. capitatum E. West 1972-5-5 22 Riverside 5.6 mi from Banning on the Palms to Pines Hwy 1036 Comment
  RSA0019316  Erythranthe guttata Carl B. Wolf 1932-5-25 3673 Riverside 1 mile below the Fish Hatchery, Snow Creek, north base of San Jacinto Mountains. 396 Comment
  RSA543978  Eschscholzia caespitosa subsp. caespitosa Steve Boyd 1991-5-10 6210 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  CLARK-A1656-727  Eschscholzia californica Alice Wilkinson 1981-3-14 Riverside Palm Springs Comment
  RSA433687  Eschscholzia californica H. Twining 1890-03 s.n. Riverside Riverside Comment
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Oct 27 2011
  UC917873  Eschscholzia californica Frank W. Gould 1944-4-5 2224 Riverside 17 mi e Temecula Comment
  JEPS121460  Eschscholzia minutiflora Adam C. Schneider with Will Freyman 2014-2-16 404 Riverside East side of Highway 177. Comment
  UCD94343  Eschscholzia minutiflora Shannon M. Still; Carolyn Still, Steven Still 2009-3-28 509 Riverside California. Riverside County. 583 Comment
  UCD96509  Eschscholzia papastillii Shannon M. Still 2009-2-22 443 Riverside California. Riverside County: Joshua Tree National Park. ca. 2/3 way to Lost Palms Canyon on either side of Lost Palms Canyon Trail. 932 Comment
  RSA0022893  Eschscholzia papastillii I. W. Clokey 1935-4-17 6631 Riverside Cottonwood Springs. Colorado desert. Comment
  CAS-BOT-BC419587  Eschscholzia parishii S. B. Parish; W. F. Parish 1882-4-1 732 Riverside Eastern slope of San Jacinto Mt. Comment
  CSUSB959  Eschscholzia parishii Glen W. Forister 1967-3-23 Riverside Cottonwood Canyon. Found along the side of the stream on the west-facing bank of the hill, about 0.5 mile past the end of the good road. 609 Comment
  JEPS51697  Eschscholzia parishii W. L. Jepson 1927-4-11 11622 Riverside Whitewater bridge 457 Comment
  UCSB18841  Eschscholzia parishii Perkins, Carlin 1963-5-5 Riverside State Highway 74; 5-7 miles SE of Pinyon Flats Campground 792 Comment
  SEINET8043950 Image available Eucalyptus A. C. Sanders, Sandra L. Leatherman, Jeff Crain 2015-1 41554 Riverside Peninsular Range: Eeastern Foot of the Santa Ana Mtns: Temescal Valley jsut below I-15 bridge near Hostettler Road, Se of Lee (Corona) Lake, south side of I-15, 2.17 km west of Lake St. at Alberhill. 363 Comment
  HSC78513  Eucrypta chrysanthemifolia Rodney Hendrick 1965-3-14 Riverside Box Canyon about 8 mi. E of Mecca 183 Comment
  UCR121308  Eucrypta chrysanthemifolia A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-22 25012 Riverside The Badlands, summit of Mt. Eden, SW of Beaumont 671 Comment
  RSA314636  Eucrypta chrysanthemifolia var. bipinnatifida Robert F. Thorne, F. R. Fosberg, M. H. Sachet, Charles C. Herbst 1983-4-23 55456 Riverside San Bernardino Mountains: side canyon on W side of Whitewater Canyon, ca. 3.3 miles N of Whitewater post office. 595 Comment
  UCR123876  Eucrypta chrysanthemifolia var. chrysanthemifolia Steven R. Hill 2001-4-29 33521 Riverside Calimesa, south side of Route I-10 right-of-way, 0.2 mi west of Desert Lawn Road exit 705 Comment
  SBBG35142  Eulobus californicus T. L. Secrest 1948-4-10 Riverside near Hemet Comment
  RSA736104  Euphorbia L. C. Wheeler 1952-4-5 6849 Riverside Painted Canyon. Comment
  SD211601  Euphorbia Louis C. Wheeler 1945-10-6 6147 Riverside San Jacinto Mountains. 1/2 mile east of Ranger Peak. 1372 Comment
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Feb 17 2013
  UCR116480  Euphorbia albomarginata A. C. Sanders, T. B. Salvato 2001-5-25 24378 Riverside San Jacinto Valley, west end of Hemet-Ryan airport runway, 50-200 m east of Warren Rd. and 100-200 m north of Stetson Ave. 457 Comment
  UCR232805  Euphorbia albomarginata John F. Green 2008-4-16 0408- 34 Riverside Peninsular Range; Perris-Aguanga Valley, SE of Romoland, powerline route north of McLaughlin Rd. near Palomar Rd. 445 Comment
  RSA0040031  Euphorbia albomarginata W. Marquart 1938-3-12 s.n. Riverside Ten mi. west of Blythe. Comment
  UCSB44040  Euphorbia misera Sanders, A. 1982-3-20 Riverside South end of Whitewater Bench, above a small dirt road to the top of the bench and overlooking Interstate Hwy. 10 Comment
  RSA0122707  Euphorbia pediculifera Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9057 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
  SDSU7689  Euphorbia polycarpa S. J. Barnhart 1966-4-17 660417 -10 Riverside 0.1 mi. east of McAllister St., along the Metropolitan water Co. utility road (dirt). Intersection of Utility Rd. and McAllister St. is 1.5 mi. south-east of the intersection of McAllister St. and Victoria Ave. 457 Comment
  UCR172248  Euphorbia polycarpa John F. Green 2006-5-2 s.n. Riverside Peninsular Ranges, City of Temecula, Immediately N and south of Murrieta Hot Springs Road along San Diego Aqueduct right-of-way 396 Comment
  UCR264244  Euphorbia polycarpa A. C. Sanders, Jim Malusa 2015-9-10 41852 Riverside Sonoran (Colorado) Desert, Salt Creek Canyon, along Summit Road c. 1.5 miles above mouth of Red Canyon, edge of Chocolate Mountains Aerial Gunnery Range 433 Comment
  UCR183166  Euphorbia polycarpa var. hirtella Mitch Provance 2003-5-5 4409 Riverside La Sierra Hills, Norco, NW side of the La Sierra Hills, east of the end of Rushmore Dr. 305 Comment
  RSA5258  Euphorbia serpillifolia subsp. hirtula C. B. Wolf 1932-8-6 3995 Riverside Roadside 2.9 mi From Idyllwild on the road to Hemet. San Jacinto Mts. 1220 Comment
  JOTR35986  Euphorbia setiloba Harding, Mitzi, Mark Wheeler 2012-9-4 197 Riverside Joshua Tree National Park. Pinto Basin; active wash between rocky/ gravelly hills west of Pinto Mtn (stop 3) 479 Comment
  UCR264236  Euphorbia setiloba A. C. Sanders, Jim Malusa 2015-9-10 41843 Riverside Sonoran (Colorado) Desert, mouth of Red Canyon at Salt Creek wash 390 Comment
  UCD142492  Euphorbia spathulata Robert F. Thorne; Earl Lathrop 1969-5-12 37934 Riverside Rancho California; Santa Rosa Plateau; Mesa de Colorado. 624 Comment
  POM7049  Eustoma exaltatum P. A. Munz, G. Williams 1919-3-25 2314 Riverside Palm Canyon, Palm Springs. 229 Comment
  UC31887  Euthamia occidentalis E. L. Koethen 1897-10-16 Riverside Riverbottom, West Riverside 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
  NY43266  Fagonia laevis C. R. Annable 1995-3-15 2279 Riverside 2.7km SW of Valerie, on road to Martinez Canyon Comment
  SBBG3963  Fagonia laevis H. and M. Dearing 1936-12-25 966 Riverside 10 mi N of Indio on Aqueduct Rd [Long Cyn] Comment
  CHSC103495  Fagonia pachyacantha Steve Boyd; Tammy Morgan, Aydee Virgen, Sarah DeGroot 2004-5-14 11237 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region: Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  JEPS121573  Fagonia pachyacantha Adam C. Schneider with Will Freyman 2014-2-16 387 Riverside Box Canyon Road. Comment
  RSA735215  Fagonia pachyacantha Steve D. Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11237 Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  UCR241831  Festuca microstachys A. C. Sanders, Timothy W. Chumley 2013-4-3 40761 Riverside Peninsular Range, Temescal Canyon just above Horsethief Canyon wash crossing of DePalma Rd. at old DePalma's Italian Village site, SE of Corona (Lee) Lake 378 Comment
  UCR85168  Festuca octoflora A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16089 Riverside Coachella Valley/Santa Rosa Mtns., alluvial slopes at the foot of Rabbit Peak, below Sheep Canyon 12 Comment
  RSA524600  Filago arizonica Steve Boyd, Timothy S. Ross, Laurel Arnseth 1990-3-29 3915 Riverside Vail Lake area, summit of 'Big' Oak Mt., N of lake 793 Comment
  RSA85099  Filago californica J. C. Roos 1952-4-9 5510 Riverside Scattered along dry sunny roadside with Avena barbata, Muhlenbergia microsperma, etc., southeast face Mt. Rubidoux. 335 Comment
  UCR156089  Filago californica T. B. Salvato, Kent Beaman 2005-5-16 797 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
  UCR99160  Filago californica A. C. Sanders, G. Helmkamp 1997-3-15 19992 Riverside Peninsular Range, Lake Skinner, SE foot of Bachelor Mtn., just north of the lake 600 Comment
  UCR207619  Forestiera pubescens O. F. Clarke 2005-10-15 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River c. 200 m below old Salt Lake Railroad bridge 215 Comment
  RSA628536  Frangula californica subsp. californica A. C. Sanders, T. Tennant, J. S. Ross 1998-8-20 22218 Riverside Morongo Indian Reservation, Middle Branch Millard Canyon. 1311 Comment
  RSA390198  Frangula californica subsp. cuspidata I. W. Clokey, E. G. Anderson 1935-8-21 6735 Riverside North of Idlewilde. Hillsides. 1650 Comment
  SD73611  Fraxinus dipetala Helen V. Witham 1970-5-1 864 Riverside 10.4 miles south of Hwy 74. Bautista Canyon, southeast of Hemet. 1000 Comment
  UC1123352  Fraxinus dipetala A. Lewis 1934-3-10 313 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quad. 426 Comment
  CLARK-A1703-81  Fritillaria biflora Sue Damon 1981-4-16 7 Riverside Gavilan Hills Comment
  UCR258635  Funastrum cynanchoides T. B. Salvato, Matthew Malle, Thomas M. Sullivan Jr 2014-4-22 7899 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, dirt extension of Lake Street, c. 1.3 mi north of Hwy 15 and Temescal Canyon 555 Comment
  UCD121391  Funastrum cynanchoides var. cynanchoides T. B. Salvato; Kent Beaman 2005-5-16 791 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
  RSA210976  Funastrum cynanchoides var. hartwegii C. W. Tilforth 1969-7-25 217 Riverside 3/10 mi. n.w. of Aguaga, State hiway 79. Comment
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Jun 16 2013
  JOTR34258  Funastrum hirtellum La Doux, Tasha, M. Harding 2010-4-7 2923 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; in upper reaches of side canyon, approx. 1 mile north of park boundary Comment
  SD240829  Funastrum utahense Dave Silverman 2010-3-30 7886 Riverside East bajada flank of southern McCoy Mountains, 1 km west of Black Creek Road, 7.8 km east of McCoy Pk and 4.8 km N of I-10 164 Comment
  UC28154  Galium andrewsii subsp. andrewsii H. M. Hall May 1899 1155 Riverside Kenworthy San Jacinto Mountains 1524 Comment
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Mar 25 2011
  UCR122534  Galium andrewsii subsp. andrewsii George K. Helmkamp, E. A. Helmkamp 2001-5-20 6678 Riverside San Jacinto Mountains, Morris Ranch Rd., 2.1 mi NE of CA-74 1570 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
  UCR132341  Galium angustifolium John F. Green, S. J. Myers 2003-6-25 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  JEPS56035  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1967-3-19 4331 Riverside e-facing slope s Temecula (just n of county line) Comment
  JEPS56084  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and Clare Hardham 1965-6-17 4127 Riverside road from Banning to Idyllwild 2 mi n road to Twin Pines Ranch 304 Comment
  RSA561008  Galium aparine Steve D. Boyd, Tim S. Ross 1992-5-4 7202 Riverside Southern Santa Ana Mountains; San Mateo Canyon Wilderness Area; Oak Flats area E of Verdugo Potrero 732 Comment
  RSA706289  Galium californicum subsp. primum Naomi S. Fraga, Sarah J. De Groot, Valerie Soza 2004-6-28 1280 -b Riverside Along Red Hill Road (5S10) near Alvin Meadows, southwest of Pine Cove. 1616 Comment
  RSA706291  Galium californicum subsp. primum Naomi S. Fraga, Sarah J. De Groot, Valerie Soza 2004-6-28 1280 -a Riverside Along Red Hill Road (5S10) near Alvin Meadows, southwest of Pine Cove. 1616 Comment
  UCR147258  Galium californicum subsp. primum Naomi Fraga, Sarah De Groot, Valerie Soza 2004-6-28 1280 b Riverside Peninsular Range; San Jacinto Mtns., along Red Hill Road (5S10) near Alvin Meadows, SW of Pine Cove 1677 Comment
  JOTR01223  Galium munzii Cole, James E. 1941-5-30 829 Riverside Joshua Tree National Park. QUAIL MOUNTAIN 1584 Comment
  UCR187499  Galium porrigens Theresa Johnson 2006-5-11 106 Riverside Peninsular Range;, Santa Rosa Plateau, Los Alamos Canyon above confluence with San Mateo Canyon 427 Comment
  LA208441  Galium stellatum var. eremicum Ralph Hoffmann; 1931-6-14 509 Riverside 6 mi S of 29 Palms on road to Gold Park Comment
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Mar 9 2014
  RSA776344  Galium stellatum var. eremicum Duncan S. Bell 2010-3-20 624 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  UCR216497  Galium stellatum var. eremicum Jim Andre, T. La Doux 2009-3-10 11235 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
  UCR208932  Garrya flavescens Larry E. DeBuhr 1972-3-23 529 Riverside Peninsular Range, Santa Rosa Mountains, San Bernardino National Forest, across the valley from Santa Rosa Springs, below TV transmitter station 2317 Comment
  CAS-BOT-BC158072  Garrya veatchii S. B. Parish 1918-4-3 11697 Riverside Brush lands, San Jacinto River Comment
  RSA674761  Gastridium phleoides Scott D. White, Teresa Salvato 2001-6-8 8582 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  UCR160953  Gaura coccinea A. C. Sanders 2001-7-9 24465 Riverside Santa Ana River Valley/San Bernardino Valley, Riverside, weed in the UCR Botanic Garden 351 Comment
  RSA113806  Gayophytum diffusum subsp. parviflorum Peter H. Raven, R. Snow 1957-7-26 11000 Riverside Along Banning to Idyllwild road 0.7 miles north of Vista Grande Ranger Station, San Jacinto Mountains. Comment
  SEINET10492292  Gayophytum nuttallii David B. Dunn 1946-8-18 Dunn 2754 Riverside On dry gravely soil on ridge overlooking round valley where the trail forks going to round valley and to the peak. San jecinto mts. California. Comment
  JEPS33546  Geraea canescens W. L. Jepson and W. C. Mathews 1914-5-23 6052 Riverside Conchilla Desert Colorado Desert, Conchilla Desert 60 Comment
  POM305628  Geraea canescens Henry J. Ramsey, Henry J. Ramsey 1937-2-26 871 Riverside Indio. Comment
  RSA699241  Geraea canescens J. R. Bruff 1928-4-3 s.n. Riverside 13 miles W of Desert Center. Comment
  RSA719040  Geraea canescens Michael Honer 2005-3-11 2060 Riverside Rice Valley; 4.5 mi. SSE of Rice; 1.5 mi. E of ATSF railway. 220 Comment
  UCR148314  Geraea canescens John F. Green 2005-1-14 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, Coachella Canal right-of-way, between siphons 23 and 24, at Kaiser RR trestle over the canal, between Salt Creek and Hunters Spring 23 Comment
  UCR260964  Geraea canescens Duncan S. Bell 2013-1-30 4457 Riverside Sonoran (Colorado) Desert, the Mecca Hills, beside the Coachella Canal and the powerlines at the base of the mountains in narrow desiccating depressions where winter rains had collected 23 Comment
  RSA0036275  Geraea canescens M. B. Dunkle 1933-3-4 3058 Riverside Painted Canyon. Colorado Desert. 30 Comment
  UC130494  Geranium californicum Charlotte M. Wilder 1909-7-11 950 Riverside Round Valley San Jacinto Mts. 2743 Comment
  RSA391012  Geranium richardsonii M. B. Dunkle 1933-7-23 3763 Riverside San Jacinto Peak 2896 Comment
  UCR165410  Gilia A. C. Sanders 2001-4-8 23982 Riverside Western Colorado Desert, Coachella Valley, Desert Hot Springs, north of intersection of Pierson Blvd. and Atlantic Ave., north of flood control ditch 348 Comment
  RSA470132  Gilia angelensis Ora M. Clark 1929-3-2 1636 Riverside Near Elsinore. 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
  SD247688  Gilia angelensis J. Mark Porter, Leigh A. Johnson 1997-3-10 11462 Riverside Whitewater Canyon, ca. 1.0 mile N of Whitewater along Interstate 10. 473 Comment
  UC909002  Gilia angelensis Victor Duran 1935-4-17 Riverside Sage Comment
  UCR281434  Gilia angelensis Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-3-27 317- 75 Riverside Temescal Valley, North side of Concordia Ranch Rd., slopes just east of Black Powder Rd. 393 Comment
  UCR92046  Gilia angelensis Scott D. White 1995-3-30 2653 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
  RSA71798  Gilia capitata subsp. abrotanifolia F. W. Peirson 1924-7-29 5034 Riverside Banning to Idyllwild road, San Jacinto Mountains. 1570 Comment
  RSA470270  Gilia capitata subsp. abrotanifolia N. C. Cooper 1945-5-24 1625 Riverside Big Oaks Canyon, Banning. 1220 Comment
  UC879811  Gilia clivorum Marcus E. Jones, A. M. 1882-4-24 3169 Riverside San Jacinto Comment
  CHSC108904  Gilia diegensis Duncan S. Bell; Valentin Arvizu 2010-5-10 988 Riverside Peninsular Ranges; San Jacinto Mountains region: San Bernardino National Forest: Garner Valley, approximately 1.1 air mile southeast of junction of forest service road 6S04 and forest service road 6S13. 1349 Comment
  RSA78130  Gilia diegensis Verne Grant, Alva Grant 1953-5-15 18456 Riverside On hwy 74 at Anza junction. 1494 Comment
  RSA676114  Gilia latifolia Scott D. White 2001-5-4 8448 Riverside Eastern Coachella Valley, adjacent to I-10 Freeway, a few miles east of Indio. Also adjacent sections 26, 25, 36. 61 Comment
  UC1595756  Gilia latifolia W. Wisura, J. Dolan, M. Wall 1992-3-24 4625 Riverside on Box Canyon Rd. 7.7 mi ne Mecca; ne of Mecca Comment
  CAS-BOT-BC407606  Gilia ochroleuca subsp. exilis S. B. Parish 1907-4-15 6137 Riverside Western borders of the Colorado desert, at Whitewater station 630 Comment
  CAS-BOT-BC407617  Gilia ochroleuca subsp. exilis N. M. Fellows; A. C. Sanders 1985-4-9 142 Riverside Oasis de Los Osos Preserve, off Snow Creek Canyon at the north foot of the San Jacinto Mountains, 1 mile W of Snow Creek Village 487 Comment
  RSA0017092  Gilia ochroleuca subsp. exilis D. L. Banks, S. D. Boyd 1995-5-3 0256 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
  RSA0017099  Gilia ochroleuca subsp. exilis Scott D. White, Justin M. Wood 2008-6-18 12238 Riverside San Jacinto Mountains: Meadow N/W of Keen Camp Summit, S/W of hwy 79. 1402 Comment
  UCR108993  Gilia ochroleuca subsp. exilis D. L. Banks, V. W. Steinmann 1997-3-13 1502 Riverside NW Palomar Mtns, Agua Tibia Mtns, Vail Lake area, N and just south of Hwy 79; hills (burned in the Vail fire of May 1996) east of the Dripping Springs alcove and west of Vail Lake Marina Rd 549 Comment
  UCR256093  Gilia ochroleuca subsp. exilis LeRoy Gross, Evan Meyer 2013-5-21 6112 Riverside Peninsular Range; San Jacinto Mtns., West Ridge, south of Double View Drive and Deer Foot Lane. Southwest from Idyllwild, and Strawberry Valley. Started near 33.72895N, 116.73415W. And ended at Inspiration Point 1631 Comment
  POM13578  Gilia scopulorum P. A. Munz, D. D. Keck 1922-4-12 4837 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 610 Comment
  RSA78695  Gilia sinuata P. A. Munz 1952-4-15 17349 Riverside Pleasant Valley, Joshua Tree National Monument 1159 Comment
  RSA125302  Gilia stellata P. H. Raven 1958-2-15 11573 Riverside 24.7 miles east of turn to Corn Springs, Chuckwalla Mountains. Comment
  RSA469731  Gilia stellata M. B. Dunkle 1935-3-31 4430 Riverside Pinto Basin. 915 Comment
  UC908852  Gilia stellata John Thomas Howell 1928-3-25 3541 Riverside Painted Canyon , Painted Canyon (Colorado Desert) Comment
  UCR89533  Gilia stellata Bern Schwenn 1994-4-9 s.n. Riverside Southern Mojave Desert, Little San Bernardino Mtns, Joshua Tree National Monument [now National Park]: 'Hidden Gold' Canyon below the Hidden Gold Mine. In 3rd canyon on N side 1085 Comment
  IRVC28172  Glinus lotoides A. C. Sanders, Kerry Knudsen, T. B. Salvato 2004-5-18 27909 Riverside Alberhill Mtn., SE of old clay mining area. Peninsular Ranges 448 Comment
  UC73217  Glycyrrhiza lepidota Miss M. Alice King May, 1893 Riverside Elsinore River Comment
  RSA747280  Gnaphalium Orlando Mistretta 1992-6-10 521 Riverside Cleveland National Forest: Along old road coming off 3504 W of San Gabriel Mountains: Northeast slope Mt. San Antonio. Headwaters of west fork of north fork Lytle Creek. Sierra Peak. [Telegraph Peak quad?] Head of road. Comment
  RSA519248  Gnaphalium californicum Ed LaRue 1989-4-25 s.n. Riverside 2 mi (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouths of Rice and McVicker Canyons. All of sec. 33, W/2 sec. 34, NW/4 sec. 3 [T6S] and a small portion of eastern sec 35. 488 Comment
  SEINET959511 Image available Gnaphalium canescens subsp. beneolens R. E. Riefner Jr. 2006-1 06 -432 Riverside Peninsular Range: Temecula, Temecula Valley, Hwy 79 at Old Town Front Rd. (Temecula 7.5 Q) 305 Comment
  UCR169466  Gnaphalium luteoalbum John F. Green 2005-4-28 s.n. Riverside Peninsular Range; Southern Santa Ana Mtns., Santa Rosa Plateau, hills on the south side of Tenaja Rd., between Squaw Mtn. and DeLuz Creek 655 Comment
  CLARK-A1528-222  Gnaphalium microcephalum Ken F. Clarke 1971-9-7 Riverside Jurupa Comment
  POM12962  Gnaphalium palustre P. A. Munz, I. M. Johnston 1922-5-19 5371 Riverside Menifee Valley. 412 Comment
  RSA526078  Gnaphalium palustre Steve Boyd, T. S. Ross 1990-5-11 4632 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  CAS-BOT-BC304634  Gutierrezia californica Lewis S. Rose 1945-12-26 45330 Riverside Palm Springs 137 Comment
  CAS-BOT-BC304640  Gutierrezia californica J. C. Roos 1965-9-26 s.n. Riverside Near Palm Springs station Comment
  UCR93820  Gutierrezia californica P. J. MacKay 1996-6-15 004 Riverside Reche Cyn., 2.5-3 mi. south of S. B. county line on Reche Cyn. Rd. 580 Comment
  OBI16358  Gutierrezia sarothrae H. E. McMinn 1935-6-23 3938 Riverside About 1/2 mi S of Elsinore Comment
  UCR182163  Gutierrezia sarothrae Mitch Provance 2003-4-5 6612 Riverside San Bernardino Valley, Jurupa Mountains, Glen Avon, slopes above the northern extreme of Campbell St 274 Comment
  SBBG122760  Harpagonella palmeri A. Parikh 1990-4-25 156 Riverside base of Gavilan Pk, 1.7 km N of Lake Matthews Drive, 1.8 km W of Gavilan Rd 637 Comment
  SEINET3242791 Image available Harpagonella palmeri Steve Boyd 1986-1 1767 Riverside Temescal Canyon: Terrace escarpment E side of Indian Wash, S of I-15. Comment
  SEINET8466216 Image available Harpagonella palmeri Scott D. White 2001-4-19 8381 Riverside Perris-Aguanga Basin; Perris / Sun City area. Just east of Goetz Road and south of Ethanac Road, c. 1.5 - 2.0 mi west of Interstate 215 442 Comment
  UCR174382  Harpagonella palmeri A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32568 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
  UCR128914  Hedypnois cretica A. C. Sanders, Mitch Provance 2001-4-5 23914 Riverside Perris-Aguanga Basin region, Long Canyon, Temecula, between gas pipeline route and 'windmill,' south of BM 1221 366 Comment
  UCR155153  Hedypnois cretica A. C. Sanders, Kelly Volansky 2005-3-17 29210 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
  UCSB39110  Heliotropium curassavicum Jorgensen, Jan 1982-3-23 Riverside Desert Beach along Highway 111, Salton Sea -70 Comment
  POM78908  Heliotropium curassavicum var. oculatum I. M. Johnston 1925-7-19 s.n. Riverside Pedley - Norco Road, 4 miles SSE of Wineville. Comment
  RSA450431  Hemizonia fasciculata J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  POM17514  Hemizonia kelloggii P. A. Munz 1923-6-18 7124 Riverside 3 miles N of Lake Elsinore. 412 Comment
  RSA659714  Hemizonia kelloggii J. C. Roos 1965-6-27 s.n. Riverside Reche Canyon Comment
  UCR235054  Hemizonia kelloggii A. C. Sanders, John F. Green 2012-5-27 40200 Riverside Peninsular Range; Perris-Aguanga Basin Region, Romoland, near SW corner of Valley Substation (on Menifee Rd.), just off Case Rd. 445 Comment
  RSA614089  Hemizonia mohavensis A. C. Sanders, Clarke, Alexander, et al. 1994-1-1 14224 Riverside Drainage just above the confluence with Twin Pines Creek, near the old Cabazon-Idyllwild Road (dirt). 280 Comment
  RSA740789  Hemizonia mohavensis Scott D. White, Justin M. Wood 2008-7-9 12416 Riverside San Jacinto Mountains: Johnson Meadow 1415 Comment
  RSA618635  Hemizonia paniculata D. L. Banks 1997-6-16 2061 Riverside MW Palomar mountains, Agua Tibia Mountains: Pechanga Indian Reservation. On S side of Pechanga Road, approximately 20 m W of the old schoolhouse. 378 Comment
  RSA683227  Hemizonia paniculata Scott D. White 2003-12-1 9891 Riverside Santa Ana River Valley; City of Riverside; (La Sierra area). 244 Comment
  SEINET238520  Hemizonia paniculata A. C. Sanders, T. B. Salvato 2000-5-25 23423 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
  UCR108831  Hemizonia paniculata O. F. Clarke 1972-5-21 s.n. Riverside Riverside, Santa Ana River near Union Pacific Bridge 213 Comment
  UCR150559  Hemizonia paniculata Scott D. White 2003-12-1 9890 Riverside Santa Ana River Valley; city of Riverside; La Sierra area 244 Comment
  UCR167688  Hemizonia paniculata T. B. Salvato, Melissa Clemons 2005-6-23 1289 Riverside Peninsular Range; Temescal Valley, Alberhill, intersection of Lake Street and Walker Canyon Drive, N of Hwy I-15, at base of Walker Canyon 378 Comment
  POM187878  Hemizonia pungens subsp. laevis E. C. Jaeger 1932-8-31 s.n. Riverside Between Lakeview and San Jacinto Comment
  UCR130519  Hemizonia pungens subsp. laevis R. E. Riefner Jr. 2003-5-27 03- 247 Riverside Elsinore Trough, back basin of Lake Elsinore, south of Lake Elsinore inlet and west of Diamond Stadium off Pete Lehr Drive 384 Comment
  UCR260132  Hemizonia pungens subsp. laevis A. C. Sanders 2015-2-19 41248 Riverside San Jacinto Valley, 53 acre parcel c. 370 m south of Ramona Expressway and 1 km east of Warren Rd., north of Record Rd. 442 Comment
  RSA695597  Hemizonia wrightii Keith E. Hoffmaster 1937-6-6 s.n. Riverside Near Valle Vista, Hemet Valley. Comment
  RSA377054  Hesperocallis undulata N. C. Cooper 1949-4-8 3291 Riverside Blythe. 259 Comment
  UCR251903  Hesperocallis undulata Jim Andre 2013-3-27 24827 Riverside NE Colorado Desert, Riverside Mountains, Agnes Wilson Rd. west of crossing of Colorado River, 0.8 mi east of Hwy 95, 12.4 mi south of Vidal Junction 115 Comment
  CAS-BOT-BC508659  Hesperocallis undulata Lester Rowntree 1937-3-23 s.n. Riverside Coachella Valley near Hidden Springs Comment
  UCR48389  Hesperolinon micranthum Steve Boyd 1986-4-22 1773 Riverside Peninsular Range, Temescal Canyon, E side of Indian Wash, south of I-15 Comment
  CAS-BOT-BC131795  Hesperoyucca whipplei C. B. Wolf 1931-5-11 1943 Riverside Near Pipe Creek, above Hemet Valley, San Jacinto Mts. 1676 Comment
  RSA740766  Heterocodon rariflorum Scott D. White, Justin M. Wood 2008-6-19 12264 Riverside San Jacinto Mountains: Meadows at Baldy Mtn. 1585 Comment
  UCR193962  Heterocodon rariflorum A. C. Sanders 2008-7-25 35891 Riverside Peninsular Range; San Jacinto Mtns., May Valley, along nameless tributary of Herkey Creek NW of Bonita Vista Rd., 3/4 mi. SW of Fleming Ranch 1524 Comment
  UCR140567  Heteromeles arbutifolia Randall T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero 2004-5-20 9- 69 Riverside San Jacinto Mtns, San Bernardino National Forest, 12 miles east of Hemet on Hwy 74 near Dry Creek, Site L9 961 Comment
  UCR94952  Heterotheca sessiliflora subsp. echioides Scott D. White 1996-8-15 4473 Riverside San Jacinto Mtns., Idyllwild Area: Alvin Meadows and unnamed canyon upstream. Upper margin of area that burned in July, 1996 1585 Comment
  UCR58452  Heterotheca sessiliflora subsp. fastigiata George K. Helmkamp 1989-10-7 s.n. Riverside Peninsular Range; San Jacinto Mtns, roadside beside Hwy 243 near Lawlor Lodge, c. 2 mi north of Pine Cove 1600 Comment
  UCR24439  Heuchera hirsutissima John C. Roos 1946-8-27 2784 Riverside Peninsular Range, Santa Rosa Mtns 2287 Comment
  RSA0036012  Heuchera hirsutissima Robert F. Thorne, Walter Wisura 1977-9-17 50801 Riverside San Jacinto Mountain: summit 3293 Comment
  RSA0124820  Hibiscus denudatus Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8752 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting on the Martinez Slide to the north of Toro Canyon, approximately 4.5 air miles east northeast of the summit of Martinez Mountain. 230 Comment
  CAS-BOT-BC318754  Hieracium horridum Louis C. Wheeler 1931-10-3 191 Riverside Tahquitz Peak, San Jacinto Mts. 2682 Comment
  RSA0117898  Hilaria rigida Sarah J. J. De Groot, Duncan S. Bell, LeRoy Gross 2016-2-17 7607 Riverside Santa Rosa Mountains: Slide off east side of Martinez Mountain, north of Toro Canyon, south of La Quinta, southwest of Thermal and Coachella. 110 Comment
  HSC93853  Hirschfeldia incana Scott D. White 1996-4-14 3906 Riverside E of Hemet, San Jacinto River Wash near Valle Vista, N of Hwy. 74, 1.7 mi. W of USFS Cranston Fire Station 534 Comment
  UC1930013  Hirschfeldia incana Scott D. White, Justin Wood 2008-5-15 11991 Riverside San Jacinto Mountains: Johnson Meadow. Comment
  CLARK-A1528-476  Hoffmannseggia densiflora Charlotte Stocks 1964-9-11 Riverside Indio Comment
  CAS-BOT-BC207506  Hoffmannseggia glauca Lewis S. Rose 1938-2-1 38014 Riverside Palowalla, 30 mi. e. of Desert Center 121 Comment
  UC577427  Hoffmannseggia glauca J. and H. W. Grinnell 1937-11-30 1087 a Riverside 24 mi w Blythe (bed of Fork Dry Lake); Ford Dry Lake Comment
  UCSB18870  Hoffmannseggia glauca Winn, Will 1963-4-8 Riverside U.S. Highway 60-70, 31 miles E of Desert Center 243 Comment
  CAS-BOT-BC206377  Hoffmannseggia microphylla Peter H. Raven 1958-1-24 11464 Riverside desert alluvial fan, Fargo Canyon Comment
  SD44854  Hoffmannseggia microphylla Darley F. Howe 1952-4-27 2185 Riverside Highway east of Mecca at All American Canal Comment
  SD234244  Hordeum intercedens Mitch Provance 2005-5-17 6554 Riverside Warm Springs Valley: Terra Cotta, Nichols Rd. Wetland at Alberhill Creek, ca 100 yards SE of the Durant RR siding, bordered on NW by Pierce St, and on N by Alberhill Creek; Baker St A+- bisecting the collection site (Lake Elsinore 7.5 'Q). 395 Comment
  UCR162953  Hordeum intercedens Fred M. Roberts, D. E. Bramlet 2005-4-1 6141 Riverside Upper Salt Creek, W of Hemet, parcel between Devonshire and Florida, c. 0.2km N of Florida and 0.2km W San Diego Aquaduct; c. 2km NW Ryn Field 457 Comment
  SEINET271516  Hordeum marinum A. C. Sanders, K. D. Jones; D. Malueg 1996-4-20 18050 Riverside San Jacinto River between Nuevo and Lakeview from 11th to 13th Streets alkaline flats along the east side of the river 433 Comment
  RSA715944  Hordeum murinum Scott D. White, Angelia Carey 2004-4-5 10032 Riverside North of Valle Vista. Indian Creek Watershed. 518 Comment
  UCR207345  Hordeum murinum O. F. Clarke 2004-2-8 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  RSA688909  Hordeum murinum subsp. glaucum Scott D. White 2001-4-18 8354 Riverside Coachella Valley: Palm Springs. NE corner of Sunrise Dr. and San Raphael Dr. (Palm Springs) 152 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
  UC114267  Horkelia clevelandii C. R. Orcutt 1890-7-25 2104 Riverside San Jacinto Mts. Comment
  UC860209  Horkelia clevelandii P. A. Munz 1922-7-6 6011 Riverside San Jacinto Mts., Talquitz Valley 2194 Comment
  UCR20542  Horkelia clevelandii W. W. Mayhew 1977-7-4 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1921 Comment
  HSC79039  Hornungia procumbens A. C. Sanders 1985-3-7 5403 Riverside San Jacinto Valley, salt scald in barley fields 0.25 mi. S of the intersection of Bridge St. and Gilman Springs Rd. 457 Comment
  JEPS68625  Horsfordia newberryi Marjorie D. Clary 1930-1 Riverside Coral Reef Ranch Colorado Desert Comment
  OBI13209  Hosackia crassifolia var. crassifolia Carl B. Wolf 1940-7-2 9719 Riverside E. Side of Santa Ana Mts Indian Cyn Truck Trl, 1/4 mi below Main Divide Comment
  RSA782990  Hulsea vestita J. D. Olmsted 1959-7-7 746 Riverside Tahquitz Valley 4 miles ENE of Idyllwild 915 Comment
  UCR20548  Hulsea vestita subsp. callicarpha W. W. Mayhew 1977-6-11 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1921 Comment
  RSA190629  Hymenoclea salsola L. B. Ziegler 1967-6-5 s.n. Riverside Pinyon Flats, San Jacinto Mts. Comment
  RSA27452  Hymenoclea salsola I. L. Wiggins 1941-3-24 9576 Riverside Along eastern side of Salton Sea, 2.7 miles south of Mortmar. Comment
  RSA0009845  Hymenoclea salsola Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  UC124659  Hypericum anagalloides A. W. Anthony 1890-1 Riverside San Jacinto Mts. 2438 Comment
  RSA658720  Hypochaeris glabra Margaret Murphy 1983-5-21 0036 -D Riverside located in the north section fo parsel 475-090-006, lot 20 Moreno Acres of the unincorporated area known as Sunnymead. Comment
  CAS-BOT-BC219756  Hyptis emoryi Barbara Ertter; Jeffrey Strachan 1980-5-20 3478 Riverside Highway 74 (Pines to Palms Highway) near Black Hill between Palm Desert and Santa Rosa Mt 914 Comment
  CAS-BOT-BC219770  Hyptis emoryi L. R. Abrams 1926-3-26 11065 Riverside Palm Springs to Palm Canyon Comment
  JEPS63222  Hyptis emoryi E. E. Schellenger May 1920 Riverside canyon e Coachella (Colorado Desert); , e of Coachella Comment
  JOTR28871  Hyptis emoryi La Doux, Tasha, Bill Truesdell 2004-3-17 1106 Riverside Joshua Tree National Park. Cottonwood Mtns; just north of southern boundary 563 Comment
  RSA420167  Hyptis emoryi H. de Forest 1924-4-18 s.n. Riverside Tahquitz Canyon. Comment
  UC494552  Hyptis emoryi Philip A. Munz 1932-3-14 11976 Riverside Coachella Valley Deep Canyon; , Deep Canyon 91 Comment
  UCD124924  Hyptis emoryi L. S. Rose 1935-12-21 s.n. Riverside Colorado Desert, Palm Canyon Wash. 182 Comment
  UCR260270  Hyptis emoryi A. C. Sanders, Jim Malusa 2015-3-11 41404 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, wide canyon along the Gasline Road c. 1/4 mile north of the Imperial Co. line, US Navy Chocolate Mountains Aerial Gunnery Range 459 Comment
  CAS-BOT-BC311617  Isocoma acradenia var. eremophila S. B. Parish 1912-6-28 8117 Riverside Mecca Comment
  OBI16009  Isocoma acradenia var. eremophila Lewis S. Rose 1961-11-23 61062 Riverside La Quinta 15 Comment
  UCR180385  Isocoma acradenia var. eremophila Scott D. White, Andrea Warniment (Edwards) 2006-3-29 11277 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, a few mi east of Indio, at proposed I-10 Freeway / McNaughton Parkway interchage, north of the I-10 Freeway 152 Comment
  LA203682  Isocoma menziesii var. vernonioides W. Pequegnat; 1937-8-25 Riverside Santa Ana Mountains, Glen Ivy Trail 358 Comment
  SEINET4691495  Iva axillaris A. C. Sanders 2012-1 39990 Riverside Peninsular Range; Elsinore Valley; city of lake Elsinore, 0.4 km SW (210 degrees) of Intersection of Riverside Dr. and Collier Ave. 385 Comment
  UCR121889  Iva axillaris Ian G. Gillespie 2001-5-7 78 Riverside East side of Santa Ana Mountains, Temescal Valley Area, also known as Sycamore Canyon Area. North of Indian Truck Trail, in drainage off of De Palma Road. Heavy construction currently underway in adjacent areas 335 Comment
  CAS-BOT-BC140680  Juglans californica A. C. Sanders; R. E. Riefner, Jr. 2009-8-11 37148 Riverside Peninsular Range: Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River 238 Comment
  RSA44869  Juncus acutus subsp. leopoldii J. C. Roos 1948-5-15 3855 Riverside Lost Palms Canyon, Eagle Mountains., Colorado Desert. Comment
  UCR127145  Juncus bufonius var. congestus A. C. Sanders, Guy Bruyea 2003-6-12 26887 Riverside Perris-Aguanga Basin Region, Winchester, SW edge of town between Simpson Ave. and Olive Ave., c. 1 km west of Hwy 79/Winchester Rd. 445 Comment
  RSA713779  Juncus dubius A. C. Sanders, Steve Boyd, J. S. Ross, Mitch Provance 1998-10-25 22274 Riverside Hwy 74, roadside seep ca. 2 miles below (west of) Mountain Center.11S NH-2E, 2N 1250 Comment
  UCR197054  Juncus effusus subsp. austrocalifornicus A. C. Sanders, D. L. Sanders 2008-9-27 36100 Riverside San Bernardino Valley Region, Santa Ana Riverbottom at Norco, between Corydon Av. (Fire Sta. 21) and a point NW of Vine St. & Halfmoon Ct. intersection, c. 1 mile NE of River Rd. bridge 165 Comment
  UCR89810  Juncus macrophyllus Scott D. White 1993-5-27 1413 Riverside North Alberhill Ranch, hills north of Walker Canyon 488 Comment
  RSA368246  Juncus mexicanus M. B. Dunkle 1933-7-21 3720 Riverside Idyllwild 1616 Comment
  UC842785  Juncus saximontanus P. A. Munz 1922-6-30 5902 Riverside Santa Rosa 1981 Comment
  IRVC1217  Juniperus californica R. H. Whittaker, W. A. Niering 1963-5-31 SJ 93 Riverside "Palm Canyon Road", off Palm to Pines Hwy. Peninsular Ranges, Santa Rosa Mountains 1220 Comment
  RSA352497  Juniperus californica Mark Morris 1929-3-10 s.n. Riverside San Jacinto Mts. Indian Canyon Comment
  RSA59153  Juniperus californica Percy C. Everett 1950-9-15 15893 Riverside Gavilan Hills, about .5 mile s.w. of Lake Mathews. Comment
  UC64447  Juniperus californica W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1826 Riverside e base San Jacinto Mt. 1219 Comment
  JOTR32321  Justicia californica Herskovits, Tasya 2011-5-25 s.n. Riverside Joshua Tree National Park. Cottonwood Mountains; Large sandy, open wash flowing southeast to Cottonwood Canyon; Near convergence of both drainage systems and Pinto Basin road (Stop 2) Comment
  POM292861  Justicia californica Lyman D. Benson 1949-3-28 13577 Riverside Wash at east end of Pines to Palms Highway just above junction of Palm Springs-Indio Road; Mt. Range: Santa Rosa Mountains; Drainage area: Colorado Desert. 305 Comment
  RSA26370  Justicia californica Reid Moran 1941-5-5 855 Riverside Cottonwood Pass, Eagle Mtns. Comment
  RSA398809  Justicia californica B. C. Templeton 1930-3-22 1659 Riverside Palm Springs. 400 Comment
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Aug 27 2011
  RSA398812  Justicia californica I. M. Johnston 1917-4-4 s.n. Riverside Near Palm Springs. Comment
  SEINET2043587 Image available Justicia californica B. Pitzer 1988-3-10 640 Riverside W side of Chuckwalla Mountains, on gas line road ca. 1.5 mi N of intersection with Red Cloud Mine Rd. (&wash); ca. 2 airline miles S of HWY I-10 488 Comment
  UCD121633  Justicia californica Anne Harrison 1962-4-17 29 Riverside Santa Rosa Mountains, State Highway 74. Mountainside overlooking Deep Canyon to the east and Palm Desert to the north. 457 Comment
  UCSB15355  Justicia californica Breedlove, Dennis 1962-3-11 Riverside Cat Creek, under grove of Washingtonia filifera, 3 miles southwest of Palm Desert 426 Comment
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Mar 1 2014
  SEINET12316129  Justicia californica J. F. Bright, Wyman, C. 1933-1 8082 Riverside Mojave Desert near Palm Springs Comment
  RSA793567  Kallstroemia californica Duncan S. Bell 2012-9-13 4191 Riverside Rice Valley; east side of the Arica Mountains; approximately 6 air miles southeast of the ghost town of Rice and approximately 5.5 air miles east of Priests Well. 202 Comment
  UCR242299  Kallstroemia californica A. C. Sanders, T. B. Salvato 2012-10-12 40425 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Wileys Well Rd. c. 3 miles north of Wileys Well/ Bradshaw Trail 155 Comment
  OBI32614  Keckiella antirrhinoides Larry Cohen 1969-5-8 s.n. Riverside 4.5 mi S of Barton Rd on Reche Cyn rd dirt road 100 yds beyond Melody Ranch, S side of road 457 Comment
  POM229522  Keckiella antirrhinoides Philip A. Munz 1937-5-29 15149 Riverside Deep Canyon, Santa Rosa Mountains. 1067 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
  UCR149864  Keckiella antirrhinoides Scott D. White, Michael Honer 2004-4-6 10046 Riverside Perris/Elsinore Basins, Temescal Valley: just N of the I-15 freeway and east of Indian Truck Trail, S and west of Lee Lake 396 Comment
  UCR183016  Keckiella antirrhinoides Mitch Provance 2003-5-5 4428 B Riverside San Berardino Valley, Norco, SW slopes of the La Sierra Hills, +- 0.9 mi. WNW of Mt. Grape (peak 1064) 244 Comment
  LA28287  Keckiella antirrhinoides var. antirrhinoides Philip A. Munz; Harwood 1920-2-28 3255 Riverside 3 mi. W of Corona 335 Comment
  NY786516  Keckiella antirrhinoides var. antirrhinoides G. H. True Jr. 1935-3-13 97 Riverside Mockingbird Canyon 457.2 Comment
  POM11201  Keckiella rothrockii subsp. jacintensis Philip A. Munz 1922-7-6 6027 Riverside Between Tahquitz Valley and Round Valley. 2287 Comment
  RSA293262  Keckiella ternata subsp. ternata D. C. Michener 1980-7-18 3711 Riverside Old Banning rd. 2.7 mi. north west of jct with Poppet Flat rd. 1100 Comment
  UCR26445  Kochia scoparia A. C. Sanders 1981-9-13 2344 Riverside 3 mi NW of San Jacinto on Sanderson Ave., south of the Ramona Expressway Comment
  SD137952  Koeleria macrantha Darin L. Banks, Steve Boyd 1995-5-9 364 B Riverside N of the Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area, W of Woodchuck Campground 792 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-BC61438  Krameria bicolor F. Almeda 1976-6-5 2824 Riverside 4-5 mi. N of Interstate Hwy. #10 off of Whitewater Canyon Road Comment
  RSA0050253  Krameria bicolor J. M. Andre 2013-3-27 24838 Riverside along Wilson River Crossing Rd, 0.8 mi. east of Hwy 95, 12.4 mi. south of Vidal Jct 114 Comment
  SD21520  Krameria bicolor Frank F. Gander 1938-5-21 5762 Riverside Shaver's Summit Comment
  SD229196  Krameria bicolor Dick Schwenkmeyer, Tony Harper - Collector 2013-5-8 891 Riverside Agua Bonita Spring, Palm Canyon, approx. 8 Mi. S. of Catherdral City 883 Comment
  UCSB52574  Krameria bicolor Cowan, Clark 1978-4-23 Riverside ESE slope above San Jacinto tramway parking lot, Chino Canyon 57 Comment
  UC1539727  Krameria grayi Chas. B. Fiker 1946-4-17 3393 Riverside w side Colorado Desert; w side of Colorado Desert Comment
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Mar 23 2014
  UCR208908  Krameria grayi P. A. Munz, L. T. Street 1919-5-7 2746 Riverside Sonoran (Colorado) Desert, Palm Springs 183 Comment
  RSA715936  Lamarckia aurea Scott D. White, Angelia Carey 2004-4-5 10036 Riverside North of Valle Vista. Indian Creek Watershed. 518 Comment
  UC914193  Lamarckia aurea H. S. Reed 1935-3-15 Riverside Riverside Comment
  UCR49265  Lamarckia aurea Steve Boyd 1986-4-2 1636 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  UCR1649  Langloisia schottii Ken Calhoun 1962-3-18 21 Riverside Sonoran (Colorado) Desert, hills 0.5 mi. north of stop sign at entrance to White Water Canyon 457 Comment
  JEPS23490  Larrea tridentata W. L. Jepson 1914-5-22 6046 Riverside Thousand Palms Canyon; Colorado Desert Comment
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Apr 3 2011
  RSA709902  Larrea tridentata Sarah J. De Groot, Leland Lubinsky, Naomi S. Fraga, Lisa Rojas 2005-2-10 4605 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  RSA766668  Larrea tridentata Thomas Stoughton, Jackie McConnaughy, Andrew Monks, M. Volke 2010-4-22 161 Riverside Chuckwalla Valley. N of I-10. Wiley Well Rd exit on 4x4 rd towards McCoy Peak. 213 Comment
  RSA775495  Larrea tridentata Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4413 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 487 Comment
  RSA795738  Larrea tridentata Jim Andre 2012-3-18 21291 Riverside Palen Valley; along Rice Road (Highway 177) east of Coxcomb Mountains, 9.6 miles south of Highway 62. 208 Comment
  SEINET5762028  Larrea tridentata Kelly Wagner 1999-3-8 Riverside Dirt lot on left hand side (heading west) off Palm Canyon Dr. & Golf Club Dr. 148 Comment
  RSA594508  Lastarriaea coriacea D. L. Banks, Dylan Hannon 1996-5-3 994 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  SD186286  Lastarriaea coriacea Andy C. Sanders 2003-5-8 26576 Riverside Los Alamos Road at Warm Springs Creek crossing west of Hwy 79, northeast of the Hogbacks, north of Alamos Rd and E of the creek 395 Comment
  SD140184  Lasthenia californica A. C. Sanders 1993-4-5 13694 Riverside Western edge of Hemet, along south side of Devonshire Avenue between Old Warren and Warren Roads, southwest of Tres Cerritos and north of Florida Avenua (Hwy 74). 459 Comment
  SEINET7073409  Lasthenia californica A. G. Vestal 1963-4-23 s.n. Riverside About 0.1 mile east of Corner at the base of Gavilans Hills. Coordinate datum: NAD27. Comment
  CLARK-A1528-255  Lasthenia chrysostoma C. M. Flanagan 1973-4-26 OO 320 Riverside Morongo Indian Reservation 1158 Comment
  CAS-BOT-BC354214  Lasthenia coronaria A. C. Sanders; T. B. Salvato; Matthew Malle; Jonas Winbolt; Katie A. Kurtz 2010-4-7 37811 Riverside Peninsular Range: southeastern Gavilan Hills N of Alberhill, under powerlines near dirt extension of Lake St., 1.1 mi NW (356 deg. ) of intersection of I-15 and Lake St. 549 Comment
  POM361560  Lasthenia coronaria Ora M. Clark 1929-2-24 1518 Riverside Cabazon, Colorado Desert. Comment
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Mar 13 2011
  UC30482  Lasthenia coronaria Geo. R. Hall 1901-3-17 1677 Riverside Riverside Comment
  UCR103910  Lasthenia coronaria B. G. Pitzer 1997-4-11 3120 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
  UCR281787  Lasthenia coronaria Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-4-19 417- 102 Riverside Menifee Valley, Menifee, W side of Murrieta Rd., between Melido St. and Wickerd Rd. 482 Comment
  UCSC000803  Lasthenia coronaria H. M. Hall 3-Apr 3830 Riverside Vicinity of Riverside, in the Sonoran Zone 366 Comment
  JEPS98731  Lasthenia glabrata subsp. coulteri Raymund Chan 1997-3-28 97005 Riverside 1.5 mi W of Lakeview (on N side of Ramona Expressway; 200-300 ft E of San Jacinto River) Comment
  SDSU17520  Lasthenia gracilis Jerry Jenkins 2001-4-3 2001 -031 Riverside Santa Margarita Ecological Reserve. Ravine south of S. M. River, UTM zone 6, 482400E, 3700400N. UTM transfered to GIS. Comment
  UCR202227  Lasthenia gracilis Karin Cleary-Rose 1998-3-6 s.n. Riverside Peninsular Range; Perris-Aguanga Basin Region, Palmieri property, 25 acre parcel in western Hemet, south of Hwy 74, west of Warren Rd, directly east of the San Diego Aqueduct and c. 500 ft. east of Salt Creek, north of Stetson Ave. 527 Comment
  UCR270310  Lathyrus vestitus T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8379 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  POM306061  Lathyrus vestitus subsp. laetiflorus Henry J. Ramsey, Henry J. Ramsey 1937-5-30 1325 Riverside Santa Rosa Mountains. Comment
  SDSU17301  Lathyrus vestitus var. alefeldii Ryan Jacobson 2000-4-19 8 Riverside Santa Margarita Ecological Reserve. Near west bank of Stone Creek, about 1 mile north east of south-side facility. Comment
  UCR116578  Lathyrus vestitus var. vestitus Scott D. White 1993-3-15 1196 Riverside Peninsular Range, Elsinore, Hwy 74, just west of NW corner of Lake Elsinore. Dickey Canyon. Comment
  JEPS29302  Layia platyglossa Rimo Bacigalupi and L. Heckard 1962-3-25 8397 Riverside at e base of the Santa Ana Mountains about 5 mi se of Corona; Bedford Canyon Comment
  RSA658685  Layia platyglossa Sandy Gray 1981-04 5 Riverside 6 miles E of Corona, 1/2 mile west of Pacific Clay Co. Hwy 142. Highway overpass-stops. Comment
  UC30603  Layia platyglossa Geo. R. Hall 1901-3-17 1670 Riverside near Riverside Comment
  UCR228853  Layia platyglossa A. C. Sanders, T. B. Salvato 2011-3-28 38819 Riverside Peninsular Range; Perris-Aguanga Basin Region, Menifee Valley, powerline corridor along McLaughlin Rd. west of Murrieta Rd., north of Sun City 439 Comment
  UCR25780  Layia platyglossa John C. Roos 1952-4-13 5525 Riverside Box Springs Mtns, above Canyon Crest Heights 488 Comment
  RSA500133  Lemna minuta Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-10 3677 Riverside Vail Lake area, benches of Arroyo Seco and slopes of adjacent hills to E. 488 Comment
  SD115189  Lepechinia cardiophylla M. Kottman 1982-5-17 Riverside Junction of Indian Truck Trail and North Main Divide. Comment
  UCR230785  Lepidium A. C. Sanders, Nathan Moorhatch 2011-3-22 38783 Riverside Peninsular Range; Perris-Aguanga Basin, Romoland, Menifee Valley, south of Ethanac Rd. between Trumble Rd. and 215 Fwy 436 Comment
  CLARK-A1045-126  Lepidium dictyotum George K. Helmkamp 1977-3-20 Riverside Deep Canyon dry wash of Deep Canyon; Palm Desert 15'Q Comment
  CAS-BOT-BC89441  Lepidium fremontii N. Aitkenhead 1977-2-2 2144 Riverside On T/L access just west of Joshua Tree Monument Road. Comment
  HSC6816  Lepidium fremontii C. L. Hitchcock, C. V. Muhlick 1964-3-22 23250 Riverside Side canyon near S entrance to Joshua Tree National Monument Comment
  RSA779585  Lepidium fremontii Duncan S. Bell 2009-3-7 17 Riverside Arica Mountains: collecting on the ridgeline of the mountain range just north of the summit along the border of the Palen/McCoy Wilderness area. 614 Comment
  RSA766606  Lepidium lasiocarpum Thomas Stoughton, J. McConnaughy, Andrew Monks, M. Volke 2010-4-22 164 Riverside Chuckwalla Valley. N of I-10. Wiley Well Rd exit on 4x4 rd towards McCoy Peak. 213 Comment
  RSA784722  Lepidium lasiocarpum Duncan S. Bell 2012-3-18 3209 Riverside The Mecca Hills; southeastern section of hills; at mouth of Hidden Canyon where drainage is blocked by the Coachella Canal, approximately 2.8 air miles southwest of Hidden Spring. 20 Comment
  UCR102707  Lepidium lasiocarpum B. G. Pitzer 1998-1-24 3391 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
  UCR51947  Lepidium lasiocarpum Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2122 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  CAS-BOT-BC89666  Lepidium lasiocarpum subsp. lasiocarpum John Thomas Howell 1928-3-11 3417 Riverside North Colorado Desert. Morongo Canyon. 609 Comment
  CLARK-A1528-2326  Lepidium nitidum John C. Roos 1937-2-21 1313 Riverside La Sierra Comment
  RSA496359  Lepidium nitidum Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-19 3033 Riverside Vail Lake area, 0.5 mi WNW of dam, clay soil deposits on dissected bench, S flank Oak Mountain. 488 Comment
  UCR180109  Lepidium nitidum Mitch Provance 2003-4-26 9894 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
  UCR232033  Lepidium nitidum John F. Green 2008-4-15 0408- 19 Riverside Peninsular Range; Perris-Aguanga Valley, Moreno Valley/Mead Valley area, square parcel 0.8 km on a side, between Nandina Ave. and Oleander Ave., east of Day St. 523 Comment
  UCR138640  Lepidium nitidum var. nitidum D. L. Banks, J. Moreno 1997-2-5 1266 Riverside Agua Tibia Mtns., NW Palomar Mountains: Pechanga Indian Reservation. Recently burned area at the northern boundary of the Reservation, just north of Anza Road 409 Comment
  RSA653672  Lepidium pinnatifidum A. C. Sanders, K. C. Rose 1999-6-18 22823 Riverside Domenigoni Valley: upper Warm Springs Creek between Hwy 79 (Winchester Rd.) and Scott Rd., Domenigoni Ranch, S of Winchester 433 Comment
  CLARK-A1528-2330  Lepidium virginicum John C. Roos 1952-4-8 5475 Riverside Riverside 259 Comment
  RSA65796  Lepidium virginicum var. pubescens F. W. Peirson 1922-5-21 3031 Riverside Along east side of Hemet Valley 1357 Comment
  POM10276  Lepidium virginicum var. robinsonii Charlotte M. Wilder 1904-3-20 s.n. Riverside Wilder s Canyon Comment
  RSA450059  Leptochloa panicea subsp. mucronata J. C. Roos 1965-9-5 s.n. Riverside Blythe. Comment
  UCR23126  Leptodactylon jaegeri J. C. Lyman 1981-5-22 s.n. Riverside San Jacinto Mtns., on limestone rocky outcrop beyond Caramba camp, off the old trail 2439 Comment
  RSA524407  Leptosiphon androsaceus Steve Boyd 1990-4-3 4098 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
  RSA561066  Leptosiphon androsaceus T. S. Ross, D. E. Bramlet 1993-5-12 7347 Riverside Southern Santa Ana Mountains, San Mateo County Wilderness area. San Mateo Canyon, along stream bed and adjacent to benches and lower slopes from confluence with Los Alamos Canyon downstream to confluence with Tenaja canyon,. 366 Comment
  RSA698320  Leptosiphon floribundus Jeanne Paxton 1934-4-15 s.n. Riverside Hagador Canyon Comment
  RSA543861  Leptosiphon liniflorus Steve Boyd, D. E. Bramlet 1991-5-31 6253 Riverside Domenigoni Hills, N side of Domenigoni -Diamond Valleys ESE of Winchester. Vicinity of ultramafic outcrop on ridge top S of S-end of Warren Rd. 549 Comment
  POM145371  Leptosiphon pygmaeus subsp. pygmaeus P. A. Munz 1927-5-20 10808 Riverside 10 miles S. of Hemet. Comment
  SEINET3149002  Lesquerella recurvata H. M. Hall 1905-4-24 5882 Riverside Salvation Springs Comment
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Jul 30 2013
  UCR145969  Lessingia filaginifolia var. filaginifolia June Latting 1977-11-6 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Oasis de Los Osos, Snow Creek 488 Comment
  SDSU1091  Leymus condensatus A. H. Gallup 1948-6-12 226 Riverside San Jacinto Mt. Road from San Jacinto. 835 Comment
  JOTR33750  Linanthus bigelovii La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2748 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Granitic bedrock slopes and outcrops (Stop 4) Comment
  CAS-BOT-BC225697  Linanthus californicus E. W. Lathrop 1966-3-2 6049 Riverside 12 miles NW of Murrieta, Skyline Drive Road at junction of Wildomar and Los Alamos truck trail 877 Comment
  RSA160526  Linanthus californicus J. D. Olmsted 1959-4-10 343 Riverside 3 miles south of Banning on highway to Idyllwild. 1067 Comment
  UCR144417  Linanthus dianthiflorus Scott D. White, Michael Honer 2003-4-9 8982 Riverside Perris-Aguanga Basin, Gavilan Hills, c. 1 mi N of the I-15 Fwy and 1 mi east of the Lake Street exit, on and around unnamed peak '2349 640 Comment
  UC23557  Linanthus floribundus subsp. glaber Mrs. Gregory 1892-1 Riverside San Jacinto Comment
  UCR116987  Linaria canadensis A. C. Sanders, T. B. Salvato 2001-5-3 24076 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  UCR269921  Linaria canadensis Daphne K. Christopher, Hannah I. Stevens 2003-4-3 077 Riverside Peninsular Range, UC Riverside Motte Rimrock Reserve 536 Comment
  CAS-BOT-BC434237  Lithophragma Tracy Tennant; Mitch Provance 1998-6-16 MOR- 414 Riverside San Bernardino Mtns. Foothills: Morongo Indian Reservation, upper Millard Canyon, north of Cabazon. 1098 Comment
  RSA0010980  Lithophragma affine Justin M. Wood 2009-5-11 680 Riverside Hwy 243 near Ranger Peak, roadside. 1433 Comment
  UCR67360  Lithophragma affine subsp. mixtum Steve Boyd, T. S. Ross, L. Arnseth, J. Bonilla 1990-4-2 3994 Riverside Peninsular Range, Vail Lake area, lower slopes of Agua Tibia Mtn. along Hwy 79, east of USFWS Dripping Springs Guard Station 610 Comment
  UC146428  Lobelia dunnii var. serrata Miss Kate Conger before Oct. 1909 Riverside Winchester Comment
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Mar 20 2011
  UCR116627  Loeflingia squarrosa A. C. Sanders 2001-3-20 23847 Riverside Western Colorado Desert, Coachella Valley, Garnet, north side of 19th Ave., 1/2 mi. (airline) NW of intersection of I-10 and Indian Ave. 235 Comment
  UCR174322  Loeflingia squarrosa A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32561 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
  RSA511058  Lolium perenne Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mtns., ca. 1 mi SE of town on Nuevo. 640 Comment
  SEINET251686 Image available Lolium rigidum Walter Graves 2002-5-15 502 -15 Riverside Riverside: grown at U. C. R. in Agricultural Operations Fields (Riverside East 7.5 Q.) 305 Comment
  RSA557890  Lomatium lucidum Steve Boyd, Orlando Mistretta 1992-4-22 7004 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
  RSA769498  Lomatium vaginatum Justin M. Wood 2010-3-19 1430 Riverside Beaumont: Near Smith Creek, E of Sun Lakes off S Highland Home Rd. 747 Comment
  UCR166156  Lonicera interrupta T. B. Salvato, John F. Green 2004-5-27 564 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
  RSA171013  Lonicera subspicata var. denudata R. F. Thorne 1963-7-26 32818 Riverside Santa Ana Mts., Cleveland National Forest, Trabuco District 305 Comment
  RSA708048  Lonicera subspicata var. denudata Scott D. White, Angelia Carey 2004-5-7 10351 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent foothills. 549 Comment
  PASA278  Lonicera subspicata var. johnstonii 1920-6-22 Riverside Dripping Springs, Temecula River 457 Comment
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Jun 24 2016
  RSA607344  Lotus R. S. Woglum 1939-4-11 2219 Riverside Sonoran Desert: Near Rice, Coxcomb Tunnel. Comment
  UCR92290  Lotus argophyllus Scott D. White, Michael A. Patten 1995-8-16 3548 Riverside San Jacinto Valley, Just west of Hemet, valley floor and foothills at SE margain of Lakeview Mts. north of Florida Ave. (SR 74) and west of California Avenue 500 Comment
  RSA296154  Lotus argophyllus var. argophyllus B. A. Prigge 1980-8-5 3832 Riverside Whitewater Canyon; 0.5 mile N of trout farm. 701 Comment
  RSA772415  Lotus argophyllus var. argophyllus Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4850 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 2-3 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.02559, W116.69098 and N34.02135 and W116.68712. 915 Comment
  UC864263  Lotus argophyllus var. argophyllus I. W. Clokey and E. G. Anderson 1935-8-21 6719 Riverside e of Keen Camp P.O. (s Riverside Co.) 1350 Comment
  UCR201415  Lotus corniculatus Justin M. Wood, Brandy N. Ulrich 2008-7-14 17 Riverside San Jacinto Mountains, Garner Valley, near intersection of Fobes Ranch Road and Hwy 74 1360 Comment
  RSA717834  Lotus grandiflorus T. Tennant, Mitch Provance, Jeffrey Ross 1998-6-25 MOR- 526 Riverside Morongo Indian Reservation, upper Corral Canyon, tree stand C-01 1280 Comment
  UCR174115  Lotus hamatus A. C. Sanders, T. B. Salvato 2006-6-2 33085 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
  UCR97646  Lotus hamatus A. C. Sanders, G. Helmkamp 1997-3-15 19937 Riverside Lake Skinner area: hill (1864) east of Skinner Lake at NW end of Tucalota Hills 518 Comment
  UCR193888  Lotus heermannii A. C. Sanders, Mitch Provance 2008-7-11 35771 Riverside Peninsular Range; San Jacinto Mtns., FS road 5S02 to Coldwater Creek below road to helipad, 1 mi. NE of Mountain Center, c. 1/2 mile NE of Keenwild Fire Station 1463 Comment
  UCR141333  Lotus heermannii var. heermannii R. F. Thorne, J. -P. Simon, C. W. Tilforth 1969-6-24 38113 Riverside San Jacinto Mtns., San Bernardino National Forest, above James Reserve in Hall Canyon 1677 Comment
  UCR187481  Lotus nevadensis Theresa Johnson 2006-7-19 243 Riverside Peninsular Range; San Jacinto Mtns., Lake Fulmor 1707 Comment
  RSA641177  Lotus nevadensis var. nevadensis R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38113 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  POM229011  Lotus rigidus P. A. Munz 1937-5-30 15129 Riverside Dos Palmos Spring, north end of Santa Rosa Mountains. 1098 Comment
  RSA26280  Lotus rigidus Reid V. Moran 1941-5-4 841 Riverside East of Quail Spring, Joshua Tree Nat. Mon. 1300 Comment
  RSA90307  Lotus rigidus F. W. Peirson 1921-3-23 4084 Riverside Deep Canyon, north base of Santa Rosa Mts. 335 Comment
  RSA770427  Lotus scoparius subsp. brevialatus Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4875 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
  UCR213621  Lotus scoparius subsp. brevialatus A. C. Sanders, Matthew Malle 2010-4-23 37991 Riverside Peninsular Range, Menifee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  JOTR31043  Lotus scoparius var. brevialatus La Doux, Tasha, Maria Harding, Mark Wheeler 2010-5-20 2027 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lower Covington Flats; STOP 1: drainage heading toward Smithwater Canyon, rocky canyon with narrow sandy bottom Comment
  RSA6122  Lotus scoparius var. brevialatus C. B. Wolf 1932-5-25 3692 Riverside 1/4 mile SW of summit of Moreno Grade, Bad Lands SW of Beaumont 671 Comment
  CLARK-A1528-2808  Lotus strigosus John C. Roos 1954-5-15 6120 Riverside Reche Canyon 731 Comment
  RSA778223  Lotus strigosus Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy, Naomi Fraga 2011-3-17 776 Riverside Mecca Hills, Shaver's Well, Adjacent to Box Canyon Road, Shaver's Wash just west of Mecca Copia Trail. 305 Comment
  UC864293  Lotus strigosus Ira L. Wiggins 1937-3-9 8766 Riverside n of Indio Comment
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Dec 16 2011
  RSA125541  Lotus strigosus var. hirtellus R. Weatherby 1949-6-6 653 Riverside Mtn. spring, Santa Rosa Mtn. 1982 Comment
  POM7046  Lotus strigosus var. strigosus P. A. Munz, L. T. Street, G. Williams 1919-3-28 2390 Riverside Palm Springs. (Cabazon) 543 Comment
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Mar 13 2011
  PASA1115  Lotus subpinnatus Frank W. Peirson 1930-5-10 Riverside Hemet Plateau near March Field 457 Comment
  UCR16277  Lotus tomentellus David Eslinger 1970-4-25 s.n. Riverside Colorado, 2 mi. N [of junction of] Interstate Hwy 10 and State Hwy 195 into Joshua Tree National Monument [now J.T.N. Park], 200 ft. NW of road 610 Comment
  RSA191399  Lotus unifoliolatus E. W. Lathrop, Robert F. Thorne 1967-9-26 6661 Riverside 4 mi. NW of Murrieta 609 Comment
  POM1928  Lotus wrangelianus Robinson, Crocker 1916-4-3 s.n. Riverside Elsinore region. Comment
  RSA524435  Lotus wrangelianus Steve Boyd, T. S. Ross, L. Arnseth, Jaime Bonilla 1990-4-3 4051 Riverside Vail Lake area, E flank of Big Oak Mtn, S of E summit. 610 Comment
  RSA90345  Lotus wrangelianus F. W. Peirson 1930-5-10 8770 Riverside Roadside, on Hemet Plateau near March Field, between Riverside and Perris. 457 Comment
  SD148100  Ludwigia peploides G. K. Helmkamp, E. A. Helmkamp 2000-8-29 5981 Riverside Colorado Desert.: South of Mecca, where Lincoln St. crosses the Whitewater River. About 0.5 miles from the Salton Sea. One large cluster beside the river water. 67 Comment
  RSA192347  Ludwigia peploides subsp. peploides H. A. Zuill 1966-7-7 279 Riverside San mateo canyon, 9-10 miles SW of Murrieta. Comment
  UCR116604  Lupinus agardhianus A. C. Sanders 2001-4-8 23981 Riverside Western Colorado Desert, Coachella Valley, Desert Hot Springs, north of intersection of Pierson Blvd. and Atlantic Ave., north of flood control ditch 348 Comment
  UCR1291B  Lupinus albifrons Martha McCarthy 1960-4-24 s.n. Riverside Santa Ana Mtns, 150 yd east of Teneja Rd. and c. 8 mi from the junction with Washington Ave., Murrieta 732 Comment
  JEPS65447  Lupinus arizonicus Mary Beal 1941-4-6 858 Riverside Painted Canyon Mojave Desert, Mecca Hills, Coachella Valley Comment
  RSA457787  Lupinus arizonicus Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2201 Riverside Sonoran (Colorado) Desert NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  SJSU10788  Lupinus arizonicus R. C. McGehee 1970-4-28 232 Riverside 5 mi S of Cottonwood Pass, Joshua Tree National Monument Comment
  SEINET10489199  Lupinus arizonicus subsp. setosissimus Noel H. Holmgren, Patricia K. Holmgren 1974-3-23 Holmgren 7469 Riverside Box canyon wash, 11.4 (9 air miles) miles ene of mecca. T6s,r10e,sec.35. Frequent on gravel bar in wash. Petals pink-purple, banner with yellow center Which turns maroon with age 244 Comment
  RSA715328  Lupinus bicolor John Green 2006-4-27 s.n. Riverside Peninsular ranges, Foothills of Santa Ana Mtns./Santa Rosa Plateau: Temecula, plot centered on San Diego Aqueduct corridor between Nicolas Road and Via Norte. 351 Comment
  SD140103  Lupinus bicolor Scott White 1993-4-20 1202 Riverside Estelle Peak, Gavilan Hills; Lake Mathews quad. 822 Comment
  SD143897  Lupinus bicolor A. C. Sanders, P. MacKay, T. Thomas, O. Clarke 1997-5-4 20687 Riverside San Jacinto Mountains, north side of the range, Twin Pines Creek below the confluence with Brown Creek, on gravel bars along the creek in full sun; Cabazon 7.5' quad.; UTM 10km cell:NH-1E, 4N. Vista Grande 854 Comment
  UCR171985  Lupinus bicolor John F. Green 2006-4-25 s.n. Riverside Peninsular Ranges, City of Temecula; Long Canyon, Southern California Edison right of way, intersection of Southern Cross Road and Agena Street W to Candida Drive 366 Comment
  UCR199563  Lupinus bicolor Scott D. White 2004-4-26 10267 Riverside San Jacinto Mountain Foothills, Soboba Indian Reservation, Indian Creek Watershed 671 Comment
  RSA407105  Lupinus breweri var. grandiflorus Anstruther Davidson 1930-1 s.n. Riverside Colorado Desert. Comment
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Nov 22 2015
  UC15833  Lupinus concinnus Mrs. Gregory 1890-1 Riverside San Jacinto Comment
  UCR122525  Lupinus concinnus George K. Helmkamp, E. A. Helmkamp 2001-5-20 6671 Riverside San Jacinto Mountains., Apple Canyon Rd, 1.5 mi NE of CA-74 1463 Comment
  UCR33822  Lupinus concinnus Robert McKernan 1980-4-10 s.n. Riverside San Bernardino Mtns., Banning Canyon, 6.2 mi. north of San Gorgonio Road, on the dirt road through the canyon 1372 Comment
  RSA407143  Lupinus concinnus subsp. optatus N. C. Cooper 1944-5-21 1285 Riverside San Jacinto Mtns. West Side. 1220 Comment
  UCR213534  Lupinus excubitus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37801 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, west of dirt extension of Lake St., 1.0 mi. NW (341 deg. ) of intersection of I-15 and Lake St. 526 Comment
  POM307275  Lupinus excubitus var. austromontanus Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2144 Riverside Santa Rosa Mountains. Comment
  CAS-BOT-BC216695  Lupinus excubitus var. excubitus H. S. Gentry 1954-7-27 14258 Riverside Dripping Springs along route 79 Comment
  POM12740  Lupinus excubitus var. hallii Philip A. Munz 1922-4-28 5047 Riverside Leach Canyon, 671 Comment
  RSA0125292  Lupinus hirsutissimus Duncan S. Bell 2016-3-3 8778 Riverside Whitewater Canyon; San Gorgonio Wilderness area; Rainbow Canyon, approximately 3.5 air miles east northeast of Kitching Peak. 820 Comment
  UCR75525  Lupinus hirsutissimus A. C. Sanders, Harry Spilman, and C. N. P. S. field trip 1993-4-24 13786 Riverside San Bernardino Mountains, SE end of San Bernardino Mountains, S end of Whitewater Bench, E side of the mouth of Whitewater Canyon. 450 Comment
  SEINET238551  Lupinus hyacinthinus George K. Helmkamp 1998-6-27 4124 Riverside Santa Rosa Mtns.: 9 mi SE of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of Santa Rosa Spring. 2232 Comment
  UCR16254  Lupinus longifolius S. Riddell 1973-5-17 730517 12 Riverside Peninsular Range; Santa Ana Mtns., 0.1 mi west of El Cariso Fire Station on Hwy 74, 15 ft from the road 793 Comment
  UC865140  Lupinus microcarpus var. densiflorus I. W. Clokey, B. C. Templeton 1930-4-9 4632 Riverside e Riverside; e of Riverside Comment
  RSA3983  Lupinus shockleyi Carl B. Wolf 1932-4-29 3121 Riverside Eastern Colorado Desert, 3 miles S of Rice on the Blythe road. 213 Comment
  CSUSB1642  Lupinus sparsiflorus R. Pirot 1975-5-17 Riverside J. F. Road and Highway 74, Homeland 542 Comment
  RSA613631  Lupinus sparsiflorus D. L. Banks, Victor W. Steinmann 1997-3-13 1486 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
  RSA770785  Lupinus sparsiflorus Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4525 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR256794  Lupinus sparsiflorus T. B. Salvato, Thomas M. Sullivan Jr 2014-4-23 7872 Riverside Gavilan Hills, Southern CA Edison access road east of Lake Street, c. 1 mi north of Hwy 15 and Temescal Canyon 549 Comment
  UCR47241  Lupinus sparsiflorus B. G. Pitzer, L. F. LaPre 1987-3-2 0433 Riverside Peninsular Range, Bundy Canyon, c. 2 miles SE of Lake Elsinore, 0.5 mile north of Bundy Canyon Road off Raciti Rd. 703 Comment
  UCR88295  Lupinus sparsiflorus A. C. Sanders, K. C. Rose 1995-4-5 16376 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  RSA617297  Lupinus sparsiflorus subsp. sparsiflorus R. S. Woglum 1937-04 300 Riverside Mojave Desert: Palm Springs. Comment
  RSA660561  Lupinus succulentus Bruce Albert 1982-4-17 59 Riverside Flat field south of Cajalco road, 0.3 miles east of La Sierra Hwy. Comment
  UCR154397  Lupinus truncatus A. C. Sanders, Mike Misenhelter 2005-6-15 30951 Riverside Peninsular Range; Sage-Aguanga Region, 2 miles NNE of Vail Lake, 4 miles SSW of Sage, Denise Rd. at Bonita Rd., near Calle de Nino, 1.2 mi. NE of summit of (Big) Oak Mtn., SW of Rocky Ridge and SE of Black Hills 671 Comment
  UCR177702  Lupinus truncatus Michael Wall, Jett, Perez, and Garcia 1994-6-1 60 Riverside Peninsular Ranges; Perris-Aguanga Basin region, S of Hemet, 0.2 mi west of Benji Lane off Hwy R-3 168 Comment
  UCR20713  Lupinus truncatus A. C. Sanders, Steve Boyd 1980-5-2 1426 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  JOTR31816  Lycium andersonii La Doux, Tasha, Bill Truesdell 2007-11-9 2523 Riverside Joshua Tree National Park. Eagle Mountains along south boundary of park; Canyon parallel to and east of Lost Palms Canyon (Stop 5) 651 Comment
  POM259735  Lycium andersonii E. C. Jaeger 1939-12-29 s.n. Riverside Eytel canon [canyon]branching from Fargo Canon [canyon] 5 mi. east Indio. 244 Comment
  RSA422100  Lycium andersonii N. R. Zabriskie, W. M. Zabriskie 1971-2-15 344 Riverside C. 30' up east-facing slope in 'North Canyon' Andreas Canyon watershed. 366 Comment
  UC1280950  Lycium andersonii H. E. McMinn 1937-3-5 5001 Riverside about 7 mi w Blythe Comment
  RSA80345  Lycium brevipes F. W. Peirson 1926-1-31 6493 Riverside Dos Palmas, Colorado Desert. Comment
  UCR248092  Lycium pallidum var. oligospermum Duncan S. Bell, John Anderson, Kim Clark, Keir Morse 2012-11-11 4367 Riverside Sonoran (Colorado) Desert, Mecca Hills, at Hidden Spring just off Hidden Spring Canyon, c. 2.6 air miles south of Shaver Well, or c. 5.4 air miles northeast of junction of Box Canyon Road and the Coachella Canal 216 Comment
  UCR41831  Lythrum californicum A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6098 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  POM17576  Machaeranthera asteroides H. Baer 1923-9-30 s.n. Riverside Hemet Comment
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Nov 17 2011
  UCR17808  Machaeranthera canescens O. F. Clarke 1973-4-6 s.n. Riverside San Jacinto Mtns, Juaro Canyon, lower west side of the mountains near Soboba Hot Springs 549 Comment
  UCR34935  Machaeranthera canescens subsp. ziegleri L. B. Ziegler 1968-9-15 335 Riverside Santa Rosa Mtns, Santa Rosa Peak 2470 Comment
  UCR26090  Machaeranthera cognata John C. Roos 1947-2-1 3226 Riverside Western Colorado Desert, Painted Canyon, Mecca Hills. Comment
  RSA0112047  Machaeranthera pinnatifida subsp. gooddingii Duncan S. Bell 2009-10-9 497 Riverside Southwest section of the Arica Mountains. 410 Comment
  UCR193312  Malacothrix clevelandii A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35596 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek watershed, along foot trail from May Valley Road toward mapped spring 1560 Comment
  UCR112969  Malacothrix coulteri B. G. Pitzer, T. Tennant 1998-2-21 3534 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, on the lakebed, 1/2 to 3/4 mi.le SE of the pumping station 412 Comment
  HSC28056  Malacothrix glabrata Richard Spjut 1973-4-6 3272 Riverside Colorado Desert, 4-5 mi. N of Palm Springs on Indian Ave. 152 Comment
  POM362318  Malacothrix glabrata W. Hutchinson 1925-04 s.n. Riverside Palm Springs. Comment
  UCR196012  Malacothrix glabrata R. F. Thorne, M. Z. Thorne 1973-3-30 42695 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
  SD129607  Malacothrix saxatilis var. tenuifolia Ed LaRue May 1989 Riverside Hills east of Beaumont, along Potrero Creek. 700 Comment
  UCR261204  Malosma laurina A. C. Sanders, Jeff Crain, Nina Kidd 2015-5-19 41729 Riverside Temesal Canyon, hilltop above DePalma Rd., about mid way between Horse Thief Canyon Rd. and Glen Eden Rd. 399 Comment
  UCR37437  Malva parviflora Steve Boyd 1981-4-8 s.n. Riverside Gavilan Plateau, Lake Mathews Road, south of Gavilan Peak 640 Comment
  UCR114199  Malvella leprosa A. C. Sanders, D. Malueg, K. D. Jones, et al 2000-9-8 23633 Riverside Perris-Aguanga Basin Region, gasline right of way across Pinto and Hoopes Ranches, east of Briggs Road at and near Warm Springs Creek, south of Scott Rd. 415 Comment
  RSA605764  Marah macrocarpa Scott D. White 1996-3-16 3830 Riverside Lakeview Mts, N of Winchester, at Maze Stone Picnic Area. SE-facing slope. 610 Comment
  SDSU12949  Marah macrocarpa Jutta Buschbom 1991-6-1 31 Riverside SE-Slope, N-border of the Reserve, beyond an Avocado-grove, ca. 500m (15 min) NW from the field station. Santa Margarita Ecological Reserve, Temecula. 375 Comment
  UCD107542  Marah macrocarpa Raymond A. Evans 1999-3-10 s.n. Riverside North of Palm Springs, canyon west of White Water Canyon. Comment
  UCR94272  Marah macrocarpa Scott D. White 1996-4-14 3915 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
  RSA612361  Marah macrocarpa var. macrocarpa D. L. Banks, Joe Moreno 1997-2-5 1261 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. The headwaters of Pala Creek at the southern extremity of the Reservation, north the Riverside / San Diego County line border,, including a large area of vernally wet grassland at the extreme southwestern corner of the Reservation. 390 Comment
  RSA113922  Marina parryi Percy C. Everett, E. K. Balls 1956-5-2 21554 Riverside 4 miles North from turnoff Hwy. 60/70, W of Desert Center, on road to Eagle Mt. Pumping Station. 305 Comment
  CSUSB1680  Marrubium vulgare Jeanne Cox 1973-7-16 Riverside Near 91 freeway in Riverside. 304 Comment
  RSA618002  Marsilea vestita R. E. Riefner 1998-4-22 98 -291 Riverside Vernal Pool Flora of the Wildomar Fault: Elsinore Trough between Willard and Murrieta Creek. Lake Elsinore Comment
  SEINET3867174 Image available Marsilea vestita Robert F. Thorne, Steve Boyd; Earl Lathrop 1985-7-18 61175 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: Riparian woodland along Cole Canyon.; 0 535 Comment
  SD240893  Matricaria occidentalis A. C. Sanders, T. B. Salvato 2011-4-29 39362 Riverside Peninsular Range: Perris-Aguanga Basin Region; Romoland, McLaughlin Road, east of Palomar Road, near powerplant and railroad (Romoland 7.5'Q) 445 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
  SBBG101666  Meconella denticulata S. Boyd 1991-5-20 6269 Riverside NW of Lake Elsinore, lower Rice Cyn, just inside Cleveland Nat For boundary Comment
  SEINET13203029 Image available Medicago truncatula Walter Graves 1996-1 5971 Riverside Riverside, cultivated at UCR agricultural operations fields (Riverside East 7.5' Q.) 366 Comment
  SEINET10635025  Melia azedarach Greg Gust, Leith Nye 2005-3-11 Gust 537 Riverside Lake Elsinore City Limits. At intersection of Ellis St. & Franklin St. in an overgrown disturbed site. 400 Comment
  RSA0121430  Melica frutescens Duncan S. Bell, LeRoy Gross 2016-3-30 9147 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 6.75 air miles southeast of the summit of Martinez Mountain. 698 Comment
  RSA342044  Melica frutescens R. F. Thorne, W. A. Tilforth, L. Schultz, R. K. Benjamin, J. Hogge 1980-4-16 54084 Riverside Branch Ravine W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater PO. 610 Comment
  LA12137  Melica imperfecta F. M. Reed; 1904-6-16 1410 Riverside arroyo tahquitz [?] Comment
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Jan 18 2014
  SEINET7097940  Melica imperfecta A. G. Vestal 1937-5-9 s.n. Riverside Lat. 33 43' 11ao N, Long. -116 58' 15ao W. (NAD 27 converted to WGS84 decimal degrees) South of Hemet at the foothills of Santa Rosa Hills. UTM Zone 11, 502695 mE, 3730874 mN. Comment
  SEINET949795 Image available Melica imperfecta Mitch Provance 2003-1 9906 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 274 Comment
  UCR183337  Melica imperfecta Mitch Provance 2003-4-26 9883 B 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
  UC1929956  Melilotus indicus Scott D. White, Justin Wood 2008-6-16 12112 Riverside San Jacinto Mountains: Fobes Canyon, +/- 1 mile up Fobes Ranch Road from Fobes Spring. Comment
  RSA0038370  Mentzelia affinis A. Lee Haines 1973-3-24 s.n. Riverside Orocopia Mountains. 457 Comment
  JOTR30973  Mentzelia albicaulis La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1945 Riverside Joshua Tree National Park. (Stop 1) Pleasant Valley at base of Hexie Mountains, near Blue Cut Gorge Comment
  JEPS20770  Mentzelia involucrata Roxana S. Ferris and Rimo Bacigalupi Mar 19 1958-Mar 25 1958 13257 Riverside 2.3 mi above Midland P.O. (U.S. gypsum mine property.); Little Maria Mts. Comment
  RSA440419  Mentzelia involucrata H. C. Ackley 1926-02 s.n. Riverside Shavers Well, Colorado Desert. Comment
  UCSB8382  Mentzelia involucrata Gunnerson, Robert 1953-3-22 Riverside 9 miles east of Indio Comment
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Nov 23 2014
  RSA440402  Mentzelia involucrata var. megalantha M. B. Dunkle 1933-5-6 3434 Riverside Painted Canyon Comment
  RSA592004  Mentzelia laevicaulis Frederick W. Oettinger 1968-10-23 819 Riverside San Bernardino Mts, Whitewater Canyon, 10milesNNW of Palm Springs, Comment
  RSA771099  Mentzelia laevicaulis Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4719 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm)., Between N33.97538, W116.65161 and N33.97538 and W116.65125 604 Comment
  SEINET10734759  Mentzelia laevicaulis J. Richard Abbott, B. S. Carlsward 1999-6-24 Abbott 12843 Riverside Near White Water, west of Joshua Tree National Park; north of I-10 (just west ofjunction with CA 62) on Whitewater cut-off, then a few kilometers on Whitewater Canyon Road to where it comes closest to the river. Comment
  RSA543587  Micropus californicus Steve Boyd, Laurel Arnseth, Orlando Mistretta 1991-5-6 6139 Riverside Santa Ana Mountains, S side of Elsinore Peak. 1037 Comment
  UC1595586  Micropus californicus var. californicus Steve Boyd and Orlando Mistretta 1991-5-9 6179 Riverside on ridge between Bedford Canyon and McBribe Canyon (lower flank of range along the Bedfrod Truck Trail); Santa Ana Mountains 548 Comment
  UCR85581  Microseris campestris Julie A. Greene 1993-4-30 1289 Riverside San Jacinto Valley, San Jacinto Wildlife Area. south of visitor center road and north of the old San Jacinto River drainage 433 Comment
  UCR102895A  Microseris douglasii subsp. douglasii A. C. Sanders 1997-4-3 20168 A Riverside Lake Skinner area, N edge of large clay patch adjacent to the E side of the Skinner entrance road, c. 1-2 km NE of Borel Road. 473 Comment
  UCR220322  Microseris douglasii subsp. platycarpha D. E. Bramlet, Bill Wagner, Ken Osborne 1998-4-9 2586 B Riverside Peninsular Range, north flank of Bachelor Mtn., 1.68 km south of Rawson Road and 1.5 km northeast of the peak of Bachelor Mtn., adjacent (east and west) of the Rawson Cyn. access road 518 Comment
  UCR112010  Microseris heterocarpa A. C. Sanders, T. B. Salvato 2000-5-25 23407 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
  UCR241392  Microseris heterocarpa T. B. Salvato, Mike Landers 2013-3-21 7377 Riverside Perris-Aguanga Basin, Murrieta, between Hwy 215 and State Route 79 (Winchester Rd), 0.23 mi east of the intersection of Keller Rd and Menifee Rd 470 Comment
  UCR103258  Microseris lindleyi B. G. Pitzer, O. F. Clarke, S. Reed, G. Ruiz 1998-3-7 3569 Riverside San Bernardino Mountains, Wildlands Conservancy's Mission Creek Preserve, c. 2 mi. up canyon from entrance at ranch gate, on Mission Creek Road, off of Calif. Hwy 62 762 Comment
  UCR158516  Microseris lindleyi A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30026 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
  UCR165917  Microseris lindleyi T. B. Salvato, John F. Green 2004-5-27 556 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
  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
  RSA0018767  Mimetanthe pilosa Scott D. White, Justin M. Wood 2008-7-8 12397 Riverside San Jacinto Mountains: Johnson Meadow. 1439 Comment
  RSA192316  Mimulus aurantiacus var. pubescens H. A. Zuill 1966-3-20 96 Riverside About 2 mi. WSW of Murrieta. Comment
  RSA715296  Mimulus aurantiacus var. puniceus A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32675 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd., near stream crossing of dirt road. 549 Comment
  SDSU13593  Mimulus aurantiacus var. puniceus W. Miller, C. Mosse 1972-7-12 Riverside R.R. bed 50 yards west of erosion area. Comment
  UCR250861  Mimulus aurantiacus var. puniceus Dick Newell, Judy Booth 2014-2-16 352 Riverside Peninsular Range; Santa Ana Mtns., Cleveland National Forest, South Main Divide [Wildomar] Truck Trail, 0.75 mi. SE of Elsinore Peak 943 Comment
  RSA420963  Mimulus bigelovii var. bigelovii Anstruther Davidson 1903-5-1 1178 Riverside Working Canyon Comment
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May 28 2010
  UCSB10383  Mimulus bigelovii var. bigelovii Yokoyama, Howard 1953-3-21 Riverside 9 miles east of Indio Comment
  UCD122517  Mimulus cardinalis R. N. Raynor 1938-6-20 s.n. Riverside Coahuila. Comment
  UCR113871  Mimulus cardinalis Mitch Provance, A. C. Sanders 2000-7-4 2090 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  JEPS11072  Mimulus floribundus W. L. Jepson and H. M. Hall 1901-5-19 1300 a Riverside Strawberry Valley Mt. San Jacinto 1676 Comment
  UC472795  Mimulus fremontii var. fremontii M. F. Spencer 1921-7-1 13 Riverside Banning Road from Palm Springs; San Gorgonio Pass Comment
  UCR137034  Mimulus guttatus A. C. Sanders 2004-5-5 27781 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
  UCR214330  Mimulus guttatus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38369 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, along dirt extension of Lake St., c. 1.0 mi. NNE (04 deg. ) of intersection of I-15 and Lake St. 503 Comment
  UCSC000871  Mimulus guttatus Peter Kamb 1948-7-4 1163 Riverside Hall Canyon, San Jacinto Mts. 1646 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
  UC56262  Mimulus parishii F. Gilman 1902-1 17 Riverside Palm Springs Comment
  CLARK-A1045-315  Mimulus pilosus George K. Helmkamp 1978-6-1 Riverside Santa Ana Mountains bank of creek at end of Road; Wildomar 7.5'Q Comment
  RSA170155  Mirabilis albida L. B. Ziegler 1964-07 s.n. Riverside Garner Valley, San Jacinto Mts. NW of Kenworthy Ranger station. 1402 Comment
  CSUSB571  Mirabilis californica D. Gordon 1952-2-27 Riverside UCR campus 396 Comment
  POM758  Mirabilis laevis var. crassifolia J. D. Abrams 1901-05 s.n. Riverside Elsinore. Comment
  RSA0027981  Mirabilis laevis var. crassifolia D. L. Banks 1997-2-23 1306 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, north of Pechanga Road, south of Anza Road, just NNW of San Gabriel Church in the area burned by the 1996 Temecula Fire. 402 Comment
  RSA0047271  Mirabilis laevis var. crassifolia J. Mark Porter, Lauren E. Machen 1997-2-15 11420 Riverside North of Interstate 15 at the Lake Street/Walker Canyon exit, 4.4 mi NE of the Hwy 74 exit at Lake Elsinore. 390 Comment
  SD1506  Mirabilis laevis var. crassifolia E. Jaeger 1925-12-12 Riverside Eagle Canyon, 4.5 miles east of Palm Sprins. Comment
  SDSU14058  Mirabilis laevis var. crassifolia Michael Powers 2002-4-2 6 Riverside On north side of Via Tornado Road to north of Santa Margarita riverbed in Santa Margarita Ecological Reserve. 100 feet west of parking lot in riverbed. 233 Comment
  RSA113272  Mirabilis laevis var. retrorsa E. K. Balls 1955-4-1 20416 Riverside Hwy 74, 10.2mi, S from jct. of Hwy. 111 to Palm Springs 915 Comment
  JEPS61296  Mirabilis laevis var. villosa W. L. Jepson 1901-5-22 1390 Riverside Palm Canyon Comment
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May 15 2012
  RSA550345  Mirabilis laevis var. villosa Walter Wisura, John Dolan, M. Wall 1992-3-25 4643 Riverside Lowdesert: Cuckwalla Mts. 2.1 mi W of Corn Spring. Comment
  CAS-BOT-BC229627  Mirabilis tenuiloba J. Ewan 1931-2-23 4036 Riverside Devils Canyon above Coral Reef Ranch Comment
  UCR274218  Mirabilis tenuiloba Duncan S. Bell, Evan Meyer 2014-10-29 7675 Riverside Santa Rosa Mountains, around the mouth of Martinez Canyon, c. 3.5 air miles southwest of Valerie 169 Comment
  POM305609  Mohavea confertiflora Henry J. Ramsey, Henry J. Ramsey 1937-3-2 908 Riverside Desert center, Mojave Desert Comment
  RSA408771  Mohavea confertiflora Martha Hilend 1928-3-11 92 Riverside Morongo Pass, Colorado Desert region. Comment
  RSA778206  Mohavea confertiflora Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-22 800 Riverside Mecca Hills, just south of Shaver's Well. 305 Comment
  UC495307  Mohavea confertiflora Philip A. Munz 1932-3-14 11985 Riverside near Deep Canyon (Coachella Valley); Coachella Valley 91 Comment
  POM268799  Mollugo cerviana E. C. Jaeger 1945-09 s.n. Riverside Joshua Tree National Monument. 1220 Comment
  SEINET5333332  Monardella australis subsp. australis G. B. Grant 1904-7-23 795 a-6348 Riverside Mt. San Gorgonio 2286 Comment
  POM122454  Monardella linoides subsp. linoides Marcus E. Jones 1926-1 s.n. Riverside Corn Springs, Colo. Desert Comment
  POM259259  Monardella linoides subsp. linoides P. A. Munz 1938-8-14 15380 Riverside High ridge east of Toro Peak, Santa Rosa Mts. 2287 Comment
  RSA583365  Monardella macrantha subsp. hallii Steve Boyd, Darin Banks 1995-3-30 8416 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
  CAS-BOT-BC215495  Monardella nana Elizabeth McClintock 1941-7-21 127 Riverside San Jacinto Mts., trail to Hidden Lake, along rocky slopes of switchbacks Comment
  LA57207  Monardella nana Carl Epling; 1937-6-6 sn Riverside Palms to Pines Highway Comment
  LA96104  Monardella nana Elizabeth McClintock; 1941-7-21 129 Riverside San Jacinto Mountains, trail from Round Valley Comment
  LA96112  Monardella nana Elizabeth McClintock; 1941-6-8 64 Riverside 2.5 mi. above Pines to Palms Hwy Comment
  UC1499906  Monardella nana Elizabeth McClintock 1941-6-8 65 Riverside Pines to Palms Highway, at turn off to Santa Rosa Mts. Comment
  CLARK-A1528-579  Monardella nana subsp. arida C. M. Flanagan 1973-5-12 OO 405 Riverside San Jacinto Mountains 1097 Comment
  SEINET1910804  Monardella nana subsp. arida E. McClintock, H. Lewis 1941-1 76 Riverside Road up Santa Rosa Mt. 1/2 mile beyond canyon where stream crosses road. Comment
  SEINET2442171  Monardella nana subsp. arida Unknownnown 1941-6-29 80 Riverside Road up Santa Rosa Mt. 51/2 miles beyond canyon where stream crosses road. Comment
  UCR20635  Monardella nana subsp. tenuiflora W. W. Mayhew 1977-7-5 s.n. Riverside San Jacinto Mtns, Black Mtn. Road 2073 Comment
  UCR221473  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-15 117 Riverside Peninsular Range; San Jacinto Mtns., on the Idyllwild road, a short distance below the Keen Camp turn off, in canyon where the Pseudotsugas first occur 1479 Comment
  CAS-BOT-BC248286  Monardella robisonii A. C. Sanders; Mark Elvin; Jane Rodgers 2001-8-17 24612 Riverside Mojave Desert, Little San Bernardino Mtns: Split Rock, Joshua Tree National Park, north of Ruby VABM 4351 on west side of road 1296 Comment
  RSA65882  Monolepis nuttalliana F. W. Peirson 1918-03 1834 Riverside Field near Indio. Comment
  POM122601  Monoptilon bellioides Marcus E. Jones 1926-2-15 s.n. Riverside Near Indio. Comment
  UC1080449  Monoptilon bellioides P. C. Everett and E. K. Balls 1958-4-29 22959 Riverside 5 mi e from junction with U. S. Hwy. 99 (U. S. Hwy. 60 and 70, Indio to Blythe) 121 Comment
  UC1606977  Monoptilon bellioides David Charlton 1988-2-18 1144 Riverside s. Joshua Tree Nat'l Park (Fargo Canyon Rd. to Cottonwood Wash, parallel to I-10, 1 mi. e. of junction Dillon Rd. & Fargo Canyon Rd.); s. side Little San Bernardino Mts. 609 Comment
  UC84198  Monoptilon bellioides C. R. Orcutt April, 1887 Riverside Colorado Desert Comment
  UCR139719  Monoptilon bellioides B. G. Pitzer 1989-4-16 1297 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, just outside impact area, 1 km south of Tabaseca Tank 700 Comment
  UCR214420  Monoptilon bellioides A. C. Sanders, Mark Bibbo, Erin Bergman, Lance Woolley 2010-3-16 37491 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
  UCR90317  Monoptilon bellioides F. M. Reed 1920-3-24 4223 Riverside Sonoran (Western Colorado) Desert, Palm Springs region 152 Comment
  JOTR29575  Muhlenbergia microsperma Andre, Jim 2006-4-6 6687 Riverside Joshua Tree National Park. Pinto Basin, approx. 400 m S. of Pinto Basin Rd (paved), 3 mi. SE of Twin Tanks, 1023 Comment
  LA9671  Muhlenbergia microsperma K. Watkins; Elizabeth McClintock 1937-4-9 sn Riverside Hemet road near Winchester turnoff Comment
  RSA389637  Muhlenbergia microsperma F. M. Reed 1907-2-12 1202 Riverside Arroyo Tequisquite Comment
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Jan 18 2014
  JOTR33721  Muhlenbergia porteri La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-10-13 1008 Riverside Joshua Tree National Park. Large open bajada in northwest Eagle Mountains, approx. 1.75 mi northeast of Cottonwood Visitor Center along roadside of Rte. 11 930 Comment
  HSC78733  Muilla maritima A. C. Sanders, T. Glenn 1983-4-17 3731 Riverside Mesa de Colorado, Santa Ana Mtns., 5 mi. SW of Murrieta 612 Comment
  UCR209389  Muilla maritima Fred M. Roberts, Brenda McMillan 1998-3-31 5101 Riverside Paloma Valley, vicinity of Murreta, Ferndale Lane on hill top, 1.4 km southwest of the intersection of Briggs Road and Scott Road 480 Comment
  UCR35305  Muilla maritima L. B. Ziegler 1969-5-27 366 Riverside San Jacinto Mtns., Cahuilla Indian Reservation 1113 Comment
  CAS-BOT-BC83352  Myosurus minimus A. C. Sanders 1993-4-5 13691 Riverside Western edge of Hemet, along south side of Devonshire Avenue, between Old Warren and Warren Roads. 460 Comment
  UCR266313  Myosurus minimus subsp. apus D. E. Bramlet 1991-5-3 2114 Riverside Perris-Aguanga Basin region, west of Hemet, Stetson Ave. 457 Comment
  UCD138165  Najas marina Richard Yeo 1977-6-17 s.n. Riverside Canyon Lake, ca. 3.5 miles southeast of Arlington. Comment
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Dec 2 2014
  UC217896  Nama P. A. Munz, D. Keck 1922-4-8 4740 Riverside Mecca , Mecca (Colorado Desert) -30 Comment
  RSA784740  Nama demissa Duncan S. Bell 2012-2-12 3085 Riverside Mecca Hills: approximately 1.25 air miles north of Box Canyon Road, and approximately 4 air miles southwest of Shavers Well. 256 Comment
  UC880818  Nama demissa var. demissa C. L. Hitchcock 1940-3-29 5866 Riverside ca 100 yeads e spring Cottonwood Canyon (Cottonwood Canyon); , e of Spring Comment
  RSA653585  Nama stenocarpa A. C. Sanders, D. Bramlet, Mihai Costea, T. Salvato 1999-10-15 23173 Riverside San Jacinto Valley: Mystic (San Jacinto) Lake, 1.4 mi. SE of Jackrabbit Trail on Gilman Springs Rd., 1.4 mi. S of Eden Hot Spr., [UTM 10km cell: 11S MH-9E, 4N. Mt. Rudolph] 433 Comment
  POM1092  Nassella cernua F. L. Robinson, Crocker 1916-3-29 711 Riverside Santa Ana Mts. Comment
  SD160886  Navarretia atractyloides Virginia Moran 2003-5-28 Riverside Peninsular Ranges;Perris-Aguanga Basin region:Wilson Valley Mitigation Bank,mgd by Center for Natural Lands Mgmt:S 33 of two that comprise mitigation bank. (S27&33).Accessed frm Wilson Valley Rd. Sage 7.5 Quad. Growing in road at west gated entrance. Comment
  SEINET238934  Navarretia atractyloides A. C. Sanders, T. B. Salvato 2000-5-25 23425 Riverside Menifee Valley: S of Newport Rd. 2 miles due east of railroad Canyon Lake (Romoland 7.5' Q.) 439 Comment
  UCD48339  Navarretia atractyloides K. Esau 1935-6-15 Riverside Riverside County. Comment
  UCR114959  Navarretia fossalis Fred M. Roberts 1992-4-25 4871 Riverside San Jacinto Valley, Upper Salt Creek Watershed adjacent to Hemet, NW corner of California Avenue and Stowe Road, 3.3km ENE Winchester 455 Comment
  RSA674560  Navarretia hamata Scott D. White, Tasha La Doux 2000-6-3 7997 Riverside S of Hemet: Gibbel Flat in the Santa Rosa Hills. 610 Comment
  UC1922319  Navarretia hamata Scott D. White, Jennifer H. Jones 2005-5-25 11113 Riverside Santa Ana Mtns: Rainbow area; mountain foothils west of I-15 Freeway and immediately N of San Diego County line. Comment
  UC1532793  Navarretia prostrata Robert F. Thorne and Earl Lathrop 1975-5-25 45563 Riverside Mesa de Burro Santa Rosa Plateau, Rancho California 609 Comment
  OBI33602  Nemacladus glanduliferus J. C. Roos 1948-5-15 3851 Riverside Upper Lost Palms Cyn, Eagle Mts, Colorado Desert Comment
  SEINET10458398  Nemacladus longiflorus Tilforth 1980-6-17 TILFORTH 2012 Riverside Along Thomas Mountains road, south of Lake Hemet and est of hiway 74 1658 Comment
  RSA777654  Nemacladus orientalis Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jackie McConnaughy, Naomi Fraga 2011-3-17 756 Riverside Mecca Hills, Shaver's Well, Adjacent to Box Canyon Road, Shaver's Wash just west of Mecca Copia Trail. 305 Comment
  UCR4406  Nemacladus orientalis Frank C. Vasek 1960-3-24 600324- 27 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
  SBBG18216  Nemacladus pinnatifidus M. A. Piehl 1963-6-2 63547 Riverside Hwy 74, ca. 1.2 mi W of Mountain Center 1341 Comment
  RSA525254  Nemacladus ramosissimus Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4566 Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 548 Comment
  RSA586115  Nemacladus ramosissimus D. L. Banks, S. D. Boyd 1995-4-5 0155 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, W of the Dripping Springs Trail. 503 Comment
  RSA528068  Nemophila menziesii Scott D. White 1991-4-10 91 -57 Riverside Diamond Valley area, ca. 1/2 mi. E of Mica Butte, & S of Cactus Valley Road. 610 Comment
  UCR90743  Nemophila menziesii Scott D. White 1995-4-5 2758 Riverside Perris Valley, Lakeview Mountains; SW of Juniper Flat Road 579 Comment
  RSA421269  Nemophila menziesii var. integrifolia H. Twining 1890-04 s.n. Riverside Riverside. Comment
  UC1237990  Nemophila menziesii var. integrifolia John Weiler and Roy L. Taylor May 12 1961-May 15 1961 61118 Riverside 1.6 mi se Poppet Flat Road (along road from Banning to Idylwild, San Jacinto Mountains); San Jacinto Mountains, rd fr Banning to Idylvild Comment
  UCD121389  Nerium oleander A. C. Sanders 2000-12-17 23729 Riverside San Bernardino Valley/upper Santa Ana River region: Corona, SW side of I-15, between Taber and Ontario Streets. 277 Comment
  POM363669  Nicolletia occidentalis Jack Rempel, Erwin Miller 1934-4-28 18733 Riverside S of Pass between Horse and Pleasant Valleys Wash 1220 Comment
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Dec 11 2011
  UC303680  Nicotiana attenuata S. B. Parish 1900-1 4435 Riverside Strawberry Valley; San Jacinto Mts. Comment
  RSA426680  Nicotiana bigelovii var. wallacei Jeannette B. Edge 1934-3-25 18929 Riverside Jurupa Mountains. Comment
  UCR180600  Nicotiana glauca Scott D. White, Angelia Carey 2004-4-5 10015 Riverside San Jacinto Mountains, Foothills, north of Valle Vista. Indian Creek Watershed 671 Comment
  RSA784771  Nicotiana obtusifolia Duncan S. Bell 2012-3-18 3175 Riverside Mecca Hills; southeastern section of hills; up a side canyon of the east fork of Hidden Springs Canyon, approximately 1.5 air mile southwest of Hidden Spring. 129 Comment
  SBBG32354  Nicotiana obtusifolia L. S. Rose 1967-12-19 Riverside La Quinta 15 Comment
  UCR245238  Nicotiana obtusifolia Jim Andre 2012-3-19 21328 Riverside Sonoran (Colorado) Desert, north end of Chuckwalla Mountains at Jaeger Nature Sanctuary, 1.5 mi. south of junction Eagle Mt Rd and I-10 freeway 411 Comment
  RSA0018755  Nicotiana obtusifolia Kraemer 1929-3-17 s.n. Riverside S. La Quinta. Comment
  UCR59509  Nicotiana quadrivalvis Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3559 Riverside Peninsular Ranges; Palomar Mountains region, Vail Lake Area, along Arroyo Seco drainage from junction with Kolb Creek, S to within 0.25 mi of Hwy 79 457 Comment
  UCR21295  Nolina parryi A. C. Sanders, K. Berg 1980-5-1 1348 Riverside Peninsular Range; San Jacinto Mtns., Garner Valley area, 1.8 mi NE of Kenworthy Ranger Station on Morris Ranch Road 1616 Comment
  RSA686399  Notholaena californica M. B. Dunkle 1933-5-6 3424 Riverside Dry Morongo Canyon. Comment
  POM18179  Notholaena californica subsp. californica P. A. Munz 1923-3-10 6584 Riverside San Jacinto River, 4 mi from Elsinore. Comment
  RSA785417  Oenothera abramsii Keith E. Hoffmaster 1937-3-16 741 Riverside Near Palm Springs Station Comment
  JOTR16763  Oenothera californica subsp. avita Baker, James K. & Baker, Ilisa T. 1966-10-14 s.n. Riverside Joshua Tree National Park. ROAD TO STUBBE SPRING 1341 Comment
  RSA0004528  Oenothera decorticans var. condensata P. A. Munz 1926-1-31 9960 Riverside Dos Palmos Spring, Colorado Desert Comment
  POM355578  Oenothera deltoides subsp. deltoides M. B. Dunkle 1932-2-25 2921 Riverside 6 miles NW of Indio. Comment
  RSA615333  Oenothera deltoides subsp. deltoides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2689 Riverside Colorado Desert: Midland Road, 3.8 miles SE of Midland, Little Maria Mountains Comment
  RSA718760  Oenothera deltoides subsp. deltoides Michael Honer, L. Hulse 2004-4-14 1945 Riverside Rice Valley; appx. 2 mi. SE of Rice. 240 Comment
  SEINET5345713  Oenothera deltoides var. deltoides H. M. Hall 1904-5-20 4952 Riverside Viciniity of Riverside, along S.P.R.R. 262 Comment
  RSA771509  Oenothera dentata Keith E. Hoffmaster 1937-6-6 760 Riverside Near Valle Vista, Hemet Valley. Comment
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Jun 24 2020
  RSA158235  Oenothera elata subsp. hirsutissima David P. Gregory 1961-7-16 473 Riverside About 1 mile down a side road to the southeast, leaving US 395 four miles south of Temecula. Comment
  POM14009  Oenothera primiveris subsp. bufonis P. A. Munz, D. D. Keck 1922-4-9 4748 Riverside Shavers Well, near Mecca. 76 Comment
  RSA698253  Oenothera scapoidea J. R. Bruff 1927-3-13 2 -P Riverside Thousand Palms Comment
  CAS-BOT-BC427460  Oligomeris linifolia H. M. Hall 1905-4-1 5775 Riverside Colorado Desert. Indian Well 0 Comment
  UC634677  Oligomeris linifolia H. L. Mason 1928-3-10 4179 Riverside in alkaline spots along Whitewater River; along Whitewater River Comment
  RSA719039  Oligomeris linifolia Michael Honer 2005-3-11 2061 Riverside Rice Valley; 4.5 mi. SSE of Rice; 1.5 mi. E of ATSF railway. 220 Comment
  JEPS65556  Olneya tesota W. L. Jepson 1912-10-29 5243 Riverside Riverside Mountains, along the Colorado River, Needles to Yuma Colorado River; Riverside Mountains, Colorado River 45 Comment
  CAS-BOT-BC474745  Oncosiphon piluliferum R. E. Riefner, Jr. 2015-11-1 15 -430 Riverside City of Perris/Romoland area, Antelope Rd. at McLaughlin Rd. 452 Comment
  UCR235523  Oncosiphon piluliferum R. E. Riefner Jr. 2009-2-25 09- 20 Riverside Peninsular Range, city of Lake Elsinore, south side of Temescal Wash, west of Hwy 74, vicinity of Bromley Ave. at Bennett St. 380 Comment
  RSA0097795  Opuntia Marc A. Baker, Michelle Cloud-Hughes 2015-6-25 18362 Riverside The Badlands, 550m south of San Timoteo Wash, 33 km ENE of Riverside, hillside of fine gray-brown silt with gravel and rocks. 637 Comment
  RSA709919  Opuntia basilaris Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4635 Riverside Along Palen Pass Road, near Packard Well, S end of Granite Mountains. 502 Comment
  POM305017  Opuntia engelmannii Lyman Benson 1962-2-17 16140 Riverside 3 miles northeast of Anza. 1067 Comment
  UCR112488  Opuntia microdasys A. C. Sanders, T. B. Salvato 2000-5-30 23438 Riverside Menifee Valley, S of Newport Rd., north of Holland Rd. and east of Bradley Rd., 2 miles due east of Railroad Canyon Lake 488 Comment
  RSA87939  Opuntia phaeacantha Verne Grant 1954-6-10 19655 Riverside Northwest of Santa Rosa Mountains. 1372 Comment
  SEINET4404022  Opuntia phaeacantha Lyman Benson 15629 Riverside Peninsular Ranges; San Jacinto Mountains region: San Jacinto Mountain Range; Pines-to-Palms Highway 1372 Comment
  SEINET9037780 Image available Opuntia phaeacantha M. A. Baker 2015-1 18401 Riverside San Gorgonio Pass, 32km WNW of central Palm Springs, 100m north of the San Gorgonio River, 4km ENE of Banning, broad wash of sand, silt, rock, and gravel, mostly granitic 638 Comment
  UCR118178  Orcuttia californica Jack Easton, J. E. Harrison 2001-9-8 s.n. Riverside Perris-Aguanga Basin region, Menifee, immediately NE of intersection of Menifee and Scott Roads. Paloma Valley c. 1.1 mi. south of Bell Mountain 453 Comment
  RSA92370  Orcuttia californica F. W. Peirson 1922-5-19 3020 Riverside In Menifee Valley, 10 miles northeast of Murrieta 427 Comment
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Apr 3 2011
  UCR31806  Orobanche cooperi Gerald Griffith 1982-3-11 s.n. Riverside Coachella Valley, citrus ranch near Mecca 0 Comment
  CAS-BOT-BC502872  Orobanche cooperi subsp. latiloba Carl B. Wolf 1932-4-29 3113 Riverside Eastern Colorado Desert. Blythe--Rice Road, 4 mi S of Browns Well Comment
  CSUSB900  Orthocarpus purpurascens Ken Stolte 1978-4-27 Riverside 1 mile south of junction of Highway 60 and Central Ave, 200 meters east off Central, in Riverside. Comment
  UC572580  Oxytheca trilobata H. S. Yates 1936-8-29 6375 Riverside 1 mi ne Keen Camp; San Jacinto Quad. 1615 Comment
  RSA221052  Paeonia californica E. W. Lathrop 1966-3-23 6077 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  RSA500066  Paeonia californica Steve Boyd, Tim S. Ross, L. Arnseth 1989-4-2 3245 Riverside Vail Lake area, S of Hwy 79, 0.25 mi E of Pauba Rd. 426 Comment
  SD10674  Paeonia californica Mrs. D. R. Wolf 1932-3-20 19 Riverside Richman Ranch, 2.5 mils north of De Luz. 456 Comment
  UCR155331  Paeonia californica A. C. Sanders, Mike Misenhelter 2005-3-23 29271 Riverside Santa Ana Mtns., Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  CAS-BOT-BC327896  Palafoxia arida John Thomas Howell 1928-3-11 3430 Riverside Colorado Desert. 6 miles SE of Garnet Station, Coackella Valley. 152 Comment
  CAS-BOT-BC327918  Palafoxia arida Dr. Barton W. Evermann 1924-4-12 s.n. Riverside Cottonwood Springs Comment
  RSA0106715  Palafoxia arida Duncan S. Bell 2011-9-30 2941 Riverside Northeastern section of the Arica Mountains; northwest section of Rice Valley; approx. 2 air miles southwest of the ghost town of Rice. 234 Comment
  RSA782199  Palafoxia arida Duncan S. Bell 2011-10-22 2986 Riverside Arica Mountains: west side of the mountain range, approximately 2.6 air miles west of Priests Well, and approximately 6.8 air miles southwest of the ghost town of Rice. 437 Comment
  SBBG65762  Palafoxia arida M. N. Ackley -Feb-1926 256 Riverside near Edom 64 Comment
  SEINET2053886 Image available Palafoxia arida B. Pitzer 1998-1-24 3402 Riverside N foot of Chuckwalla Mts., Eagle Mt Rd, S side of Hwy I-10, 0.8 mi S of Hwy at powerline road and wash directly S of road. 499 Comment
  SEINET6630282 Image available Palafoxia arida Bonnie C. Templeton, I. W. Clokey 1006 Riverside N of Palm Springs 400 Comment
  OBI28972  Palafoxia arida var. arida David J. Keil 1976-11-28 11878 Riverside Just E of Indio along I-10 Comment
  POM363740  Palafoxia arida var. arida B. C. Templeton 1931-4-9 s.n. Riverside North of Palm Springs Comment
  RSA21761  Palafoxia arida var. arida C. B. Wolf 1937-4-6 8433 Riverside Coachella Valley, 3 miles N of Indio. 0 Comment
  RSA278961  Palafoxia arida var. arida B. A. Prigge, L. Martinez 1978-3-23 2406 Riverside NW Colorado Desert, Coachella Valley, 1.9 miles E of North Palm Springs on Dillon Rd. 244 Comment
  UCR153389  Palafoxia arida var. arida Scott D. White 2000-3-23 7634 Riverside Sonoran (Colorado) Desert, Coachella Valley, Thousand Palms area. North terminus of Rio del Sol Road at intersection with Vista Chino. Proposed aggregate mine expansion 183 Comment
  CAS-BOT-BC253749  Panicum capillare Scott D. White; Steve Ogg 1994-10-17 2489 Riverside Temecula Valley. City of Temecula, Murrieta Creek channel directly W of Cherry Street 315 Comment
  UCR92260  Panicum capillare Scott D. White 1995-8-23 3572 Riverside San Jacinto Valley, San Jacinto River, just north of City of San Jacinto boundary, c. 1 mi SE of bridge at State Street 463 Comment
  UCD89571  Panicum capillare subsp. hillmanii Beecher Crampton 1964-6-19 7014 Riverside UC Riverside campus experimental areas, plant introduction nursery. Comment
  UCR2615  Panicum miliaceum F. M. Reed 1918-1 4012 Riverside Riverside: on Indianapolis Ave. (Spruce Street) near Kansas 268 Comment
  UCR137046  Parietaria hespera var. californica A. C. Sanders 2004-5-5 27769 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
  SEINET10434106 Image available Parkinsonia florida Marc A. Baker 2015-4-15 18328 Riverside San Gorgonio Pass, 8km east of Banning, 30km WNW of Palm Springs, 4km WNW of Cabazon 646 Comment
  SJSU10308  Parkinsonia florida R. C. McGehee 1971-4-12 364 Riverside 10 mi NE of Desert Center on Rice-Desert Center Rd Comment
  RSA736906  Paspalum distichum Scott D. White, Angelia Carey, Linda Archa 2004-8-5 10681 Riverside Soboba Indian Reservation- Indian Creek and adjacent uplands, from confluence w/ San Jacinto River to +/- 2 miles upstream. 534 Comment
  UCR279378  Pectocarya anisocarpa A. C. Sanders, Jim Malusa 2017-3-24 42961 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, large wash south of Bradshaw Trail, c. 11 km SE of Gasline Rd. 729 Comment
  UCR64000  Pectocarya anisocarpa George K. Helmkamp 1984-5-2 D- 29 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  UCR72202  Pectocarya heterocarpa Theo Glenn 1992-3-31 92 19 Riverside Sonoran (Colorado) Desert, north side Eagle Mts, Storm Jade Mine 671 Comment
  SD236233  Pectocarya linearis John F. Green 2006-4-25 Riverside Peninsular Ranges; Foothills of Santa Ana Mountains / Santa Rosa Plateau; Temecula, Southern California Edison right of way between residential areas, N-S corridor between S General Kearny Road and la Serena Way; E of Veterans park (Bachelor Mtn 7.5'Q) 366 Comment
  UCR106413  Pectocarya linearis Scott D. White 1995-4-5 2718 Riverside Moreno Valley, Base of slope in 'Badlands', off [Moreno-Redlands] Blvd 640 Comment
  UCR174049  Pectocarya linearis A. C. Sanders 2006-5-19 32421 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
  CHSC35467  Pectocarya linearis subsp. ferocula James Henrickson 1973-3-18 8596 Riverside 16 (air) miles E of Temecula, 2.9 miles E of Aguanga along Hwy 71. 822 Comment
  JOTR35926  Pectocarya penicillata De Groot, Sarah J., Jessica Chu, Loraine Washburn 2013-3-22 6874 Riverside Joshua Tree National Park. Cottonwood Spring; Fan palm oasis and surrounding slopes. 905 Comment
  POM146227  Pectocarya penicillata F. M. Reed 1925-5-23 5031 Riverside Horsethief Canyon, Temescal Mountains. Comment
  SEINET272156  Pectocarya penicillata A. C. Sanders 1997-3-1 19754 Riverside Box springs Mountains: E side of Pigeon Pass Valley ca. 1/2 mile NW of Lawless Ranch E of Hidden Springs Rd. intersecti 579 Comment
  UCR804  Pectocarya penicillata J. E. Dimitman 1957-4-1 s.n. Riverside at the top of Pigeon Pass Comment
  UCR91864  Pectocarya penicillata A. C. Sanders, S. Hawkins 1996-4-24 18081 Riverside San Bernardino Mtns, Morongo Indian Reservation, SE edge of Burro Flats in vicinity of natural pond & bog 1159 Comment
  RSA680566  Pectocarya platycarpa Scott D. White, Michael Honer 2003-4-30 9141 Riverside Shavers Valley. About 1-2 miles south west of unnamed freeway exit at pumping station. 396 Comment
  UCR29782  Pectocarya platycarpa George K. Helmkamp 1983-3-24 383- 13 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  SEINET241497  Pectocarya recurvata A. C. Sanders 2001-3-20 23850 Riverside Western Colorado Desert: Coachella Vlly, Garnet, N side of 19th Ave, 0.5 mi(air) NW of intersxn of I-10 & Indian Ave. 235 Comment
  UC1212092  Pectocarya recurvata Peter M. Ray 1949-3-6 1135 Riverside near 1000 Palms; Coachella Valley, Willis Palms Comment
  UCR72208  Pectocarya recurvata Theo Glenn 1992-3-31 92- 18 Riverside Sonoran (Colorado) Desert, north side Eagle Mts, Storm Jade Mine 671 Comment
  UCR68716  Pectocarya setosa Steve Boyd, T. S. Ross 1990-5-11 4611 Riverside Agua Tibia Mountains, Cleveland National Forest, base of Agua Tibia Mtn, east of Dripping Springs campground, south of Hwy 79 671 Comment
  UCR77717  Pectocarya setosa Steve Boyd 1991-5-7 6169 Riverside Peninsular Ranges, Santa Ana Mountains, SE and E side of Elsinore Peak 1067 Comment
  RSA552768  Pedicularis densiflora Steve D. Boyd 1992-3-31 6763 Riverside San Mateo Cyn. Wilderness Area. Tenaja Trail from jtn w/ Morgan Tr. S to Pigeon Spring area. 670 Comment
  SD253463  Pelargonium grossularioides A. C. Sanders 2016-6-26 42518 Riverside Peninsular Range: Riverside, UCR Botanic Garden, at west edge of the herb garden (Riverside East 7.5'Q) 363 Comment
  CLARK-A1528-37  Pellaea andromedifolia E. Kozloff 1938-1-9 Riverside Corona Comment
  POM9752  Pellaea andromedifolia var. andromedifolia P. A. Munz 1921-12-31 4697 Riverside Andreas Canyon, Palm Springs. Comment
  UCR215594  Pellaea mucronata var. californica Jim Andre, T. La Doux 2008-9-16 10703 Riverside Mojave Desert, Joshua Tree National Park, on the southeast end of Splitock Picnic Area 1290 Comment
  UC2031360  Pennisetum setaceum Duncan S. Bell with Joella Adkins 2012-11-11 4380 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region: Mecca Hills: upper branch of Hidden Spring Canyon, approx. 0.6 air miles SE of Hidden Spring and 0.6 air miles S of The Grotto. Comment
  RSA658634  Penstemon centranthifolius G. Fall 1970-5-18 0 -156 Riverside Gavalin Hills. Collected 2.8 mi. S. of Mocking Bird Cyn. Rd. on Gavalin Hills Rd. 274 Comment
  SEINET10964571  Penstemon centranthifolius David B. Dunn, Melvin L. Conrad; Patricia L. Kenney 1973-6-15 Dunn 20770 Riverside Collected at the jct of hwy 74 and 71. A gas station on the sw corner area Generally chapparal with shaggy adenostema. Comment
  NY583966  Penstemon clevelandii var. connatus S. B. Parish 1896-4-4 s.n. Riverside Palm Springs, (Agua Caliente,) desert base of San Jacinto Mountain 152.4 Comment
  UC886850  Penstemon rostriflorus C. Epling, Wm. Robison 1935-6-30 Riverside North Fork San Jacinto River Comment
  POM11257  Penstemon spectabilis Philip A. Munz 1922-6-24 5796 Riverside Pipe Creek, Hemet Valley 1555 Comment
  RSA180448  Penstemon spectabilis E. W. Lathrop 1965-5-7 5713 Riverside 5 miles SW of Murrieta on the De Luz Road. Comment
  RSA733710  Penstemon spectabilis R. H. McArthur 1934-5-6 s.n. Riverside East end Ortega Highway. Roadside. Comment
  NY661156  Penstemon spectabilis var. spectabilis S. D. Boyd 1995-4-24 8490 Riverside Palomar Range, Agua Tibia Wilderness Area, northeastern base of Wildhorse Peak, west of Devil's Hole, along the Wildhorse Trail near the rounded gabbro peak known as "Agua" on USGS Vail Lake 7.5' quadrangle. 762.0 Comment
  UC54992  Penstemon spectabilis var. spectabilis H. M. Hall June, 1901 2069 Riverside vicinity Chalk Hill (Southern California); San Jacinto Mountains, vicinity of Chalk Hill 1402 Comment
  UC88035  Pentachaeta aurea A. W. Anthony 1895-7-15 Riverside San Jacinto Mts. 1828 Comment
  UCR91555  Pentagramma triangularis subsp. maxonii A. C. Sanders, G. K. Helmkamp, L. Lubinsky, C. L. Sanders 1995-1-29 15898 Riverside San Jacinto Mtns/Colorado Desert, Chino Canyon near Palm Springs, 1.8 mi above Palm Canyon Rd (Hwy111) on the rd to the tram station, vicinity of the upper end of the flood control dike 428 Comment
  JOTR16829  Pentagramma triangularis subsp. triangularis Supernaugh, William JR. 1967-2-16 56 Riverside Joshua Tree National Park. 1/4 MILES EAST OF RYAN CAMPGROUND 1316 Comment
  RSA772404  Pentagramma triangularis subsp. triangularis Orlando Mistretta, Duncan Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4862 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
  UCR215618  Peritoma arborea Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 014 Riverside Peninsular Range, Box Springs Mountains, eastern edge of Riverside; Two Trees Canyon Trail near the trailhead 409 Comment
  UCR239222  Peritoma arborea Thomas R. Stoughton, E. Gardner, D. Bell 2010-11-12 716 Riverside Transverse Ranges; San Bernardino Mountains, Pacific Crest Trail, west of White Water Canyon, north of the junction of Hwy I-10 and Rte 111 732 Comment
  RSA471859  Perityle emoryi M. B. Dunkle 1932-3-25 2911 Riverside Cathedral Canyon Comment
  SBBG65632  Perityle emoryi Anstruther Davidson 1895-1 Riverside Palm Springs Comment
  UC708744  Perityle emoryi H. K. Wagnon 1944-5-25 397 Riverside n side near falls Tahquitz Canyon; Palm Springs Comment
  UCR104801  Perityle emoryi George K. Helmkamp 1998-2-5 2648 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR147835  Perityle emoryi Steve Boyd, Et al. 2004-5-14 11214 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains, western base of the Chocolate Mountains, small canyon c. 1.25 mi due north of Imperial Co. line and c. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range 549 Comment
  SEINET10908392  Perityle emoryi David B. Dunn, Howard Brown 1947-1-12 Dunn 2844 Riverside Pushawalla Canyon, Indio Hills. Comment
  CLARK-A1528-3172  Petalonyx linearis John C. Roos 1949-6-2 4150 Riverside Chocolate Mountains Comment
  RSA445146A  Petalonyx linearis Fordyce Grinnell Jr. 1921-3-23 17834 Riverside Deep Canyon, Santa Rosa Mts. Comment
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Nov 19 2011
  UCR169923  Petalonyx thurberi Scott D. White, Jennifer H. Jones 2005-4-21 10947 Riverside Sonoran Desert, Eastern Coachella Valley. Bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  SEINET7048060  Petalonyx thurberi subsp. thurberi Steven R. Hill 2001-4-29 33537 Riverside Whitewater Canyon, east side of canyon, east of Whitewater Canyon Road, about 2 miles north of Route I-10. Elevation about 1800 feet. Comment
  JOTR31908  Peucephyllum schottii La Doux, Tasha, M. Harding, K. Kain, E. Babich 2011-3-22 2155 Riverside Joshua Tree National Park. West Cottonwood Mountains; bouldery side canyon leading into southeast Pinkham Wash Comment
  RSA0118001  Peucephyllum schottii Sarah J. J. De Groot, Thomas Stoughton 2016-2-18 7627 Riverside Mecca Hills: side canyon (east fork) of Painted Canyon. 182 Comment
  RSA308425  Peucephyllum schottii Henry J. Ramsey, Henry J. Ramsey 1938-4-26 3074 Riverside Near Desert Center-Indio. Comment
  RSA784945  Peucephyllum schottii Duncan S. Bell 2012-2-12 3123 Riverside Mecca Hills: approximately 1.25 air miles north of Box Canyon Road, and approximately 4 air miles southwest of Shavers Well. 256 Comment
  RSA796452  Peucephyllum schottii Duncan S. Bell 2009-4-18 226 Riverside Arica Mountains: northwest of range, approximately 1.6 air miles south of Highway 62, and approximately 0.4 air mile north of California aqueduct. 389 Comment
  UC494681  Peucephyllum schottii Philip A. Munz 1932-3-14 12005 Riverside Magnesia Spring Coachella Valley 91 Comment
  POM18745  Phacelia brachyloba P. A. Munz 1923-6-14 7087 Riverside Glen Ivy Trail to Santiago Peak. 1433 Comment
  RSA0035801  Phacelia brachyloba A. C. Sanders, T. B. Salvato 2014-7-2 41184 Riverside Fobes Canyon, c. 1/2 mile south of Fobes Ranch along Fobes Ranch Rd. 1555 Comment
  RSA75503  Phacelia brachyloba F. W. Peirson 1924-7-29 5021 Riverside Road between Banning and Idyllwild. 1768 Comment
  RSA0003811  Phacelia californica var. jacintensis E. C. Jaeger 1922-7-1 1045 Riverside Tahquitz Valley, San Jacinto Mts. Comment
  SBBG65005  Phacelia campanularia B. L. Clary -Feb-1928 Riverside near Edom 64 Comment
  RSA752223  Phacelia campanularia subsp. campanularia Scott D. White, Justin M. Wood, Paul Kielhold 2009-4-21 12586 Riverside San Bernardino Mountains: Ridgeline E of Whitewater Canyon, +/- 2 miles N of town of White Water (Interstate 10), near Super Creek Quarry. 640 Comment
  SDSU18657  Phacelia campanularia subsp. vasiformis Michael G. Simpson, Kristen Hasenstab 2008-4-2 2947 Riverside Joshua Tree National Park. Wash just southwest of road to Cottonwood Spring, ca. 0.4 mile northwest of Cottonwood Spring. 922 Comment
  UC1087288  Phacelia cicutaria var. hispida E. K. Balls and P. C. Everett 1958-3-19 22873 Riverside hills 1 mi e Hwy. 17 to Elsinore 198 Comment
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Mar 1 2014
  UC284681  Phacelia cicutaria var. hispida Miss Johnston Mar 1917 Riverside Palm Springs Colorado Desert Comment
  UCR135985  Phacelia cicutaria var. hispida A. C. Sanders, Kerry Knudsen, T. B. Salvato 2004-5-18 27899 Riverside Peninsular Range, summit ridge of Alberhill Mountain, along dirt road 503 Comment
  RSA768757  Phacelia crenulata var. ambigua Jim Andre, Tasha La Doux 2010-2-28 12556 Riverside Lower Colorado River Valley; along Hwy 94 approx. 25 miles north of Blythe, on east side of Big Maria Mountains. 83 Comment
  SJSU11240  Phacelia crenulata var. ambigua T. N. Seeno 1963-4-12 279 Riverside Sky Valley 10 mi N of Palm Springs 426 Comment
  UCR30056  Phacelia cryptantha A. C. Sanders 1983-4-9 3719 Riverside Little San Bernardino Mountains, Morongo Wash, c. 2 mi south of San Bernardino County Line, just east of Hwy. 62, at the foot of the Little San Bernardino Mountains, and 12 mi NNW of Palm Springs 549 Comment
  SBBG14721  Phacelia curvipes P. H. Raven 1962-5-18 17756 Riverside Rd to Indian Hill Cyn 0.6 mi E of Santiago Pk 1615 Comment
  CAS-BOT-BC133968  Phacelia distans Geo. B. Grant 1906-4-20 6780 Riverside Palm Springs Comment
  RSA586322  Phacelia distans D. L. Banks, Steve Boyd 1995-5-3 187 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  SEINET269545 Image available Phacelia distans John Wear 1995-3-22 Riverside Colorado Desert: Wash along Eagle Mountian Road N of I-10 near Desert Center Comment
  UCR84644  Phacelia distans Scott D. White, S. Ogg 1994-4-21 2001 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  UCR178613  Phacelia imbricata Mitch Provance, Tracy Tennant 1998-6-16 MOR- 394 Riverside San Bernardino Mtns., Morongo Indian Reservation, Millard Canyon, just north of tree stand M-09 1280 Comment
  CSUSB146  Phacelia minor Barry Glaser 1964-3-9 640903 10 Riverside Edwards Canyon in Elsinore Mountains. 20 yards from road. 914 Comment
  RSA543757  Phacelia minor Steve Boyd, Tim Ross, Mike Hammitt 1991-5-2 6057 Riverside Vail Lake region, SW & W flanks of Billy Goat Mountain, 3 miles N Hwy 79, 1 mile W of Hwy 371, N of Aguanga. 600 Comment
  RSA736702  Phacelia minor Scott D. White 2004-4-26 10247 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Indian Creek Watershed. 518 Comment
  UC1244692  Phacelia minor Roy L. Taylor and R. O. Ornduff 1960-3-21 4401 Riverside 2 mi n Aguanga (on rd to Coahuila) Comment
  UCR97889  Phacelia minor A. C. Sanders 1997-3-1 19704 Riverside Riverside, Box Springs Mtns.: Coyote Hill (Bench Mark 'Versity', 1386 ft.) and ridge S and SE of the UCR Botanic Garden 427 Comment
  UC107583  Phacelia mutabilis A. W. Anthony 1895-7-13 Riverside San Jacinto Mts. Comment
  UCR102930  Phacelia parryi George K. Helmkamp 1998-4-3 3063 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  RSA6102  Phacelia ramosissima var. latifolia Carl B. Wolf 1932-5-24 3642 Riverside 0.5 mile below the Fish Hatchery, Snow Creek, north base of San Jacinto Mountains 549 Comment
  SEINET4080506  Phacelia ramosissima var. latifolia C. Davidson 1975-1 2820 Riverside Roughly two miles south of Banning on road R1 to Idyllwild; roughly 20 feet from road. 822 Comment
  UC666584  Phacelia ramosissima var. latifolia Harlan Lewis and Carl Epling 1942-5-2 1600 Riverside near Palm Springs; Andreas Canyon Comment
  UC107413  Phacelia ramosissima var. montereyensis C. C. Parry 1880-1 180 Riverside Temecula Comment
  UCSB16948  Phacelia rotundifolia Otey, D. 1963-5-5 Riverside 10.8 miles southwest of Palm Desert on State Highway 74 914 Comment
  UCR123698  Phalaris canariensis T. B. Salvato 1999-5-31 109 Riverside Upper Santa Ana River Basin/San Bernardino Valley, Riverside, residence at 1009 Bascomb Drive 305 Comment
  RSA0034096  Phalaris minor Duncan S. Bell 2013-1-30 4454 Riverside The Mecca Hills; collecting beside the Coachella Canal and the powerlines at the base of the mountains in narrow desiccating depressions where winter rains had collected. 23 Comment
  CLARK-A1528-4799  Phalaris paradoxa John C. Roos 1952-5-21 5702 Riverside San Jacinto River 426 Comment
  RSA0057658  Philadelphus microphyllus var. stramineus P. A. Munz 1938-8-14 15392 Riverside Santa Rosa Mountains, ridge east of Toro Peak. 2439 Comment
  SD67915  Phlox austromontana Reid Moran 1968-8-3 15364 Riverside On rocky north slope, ridge 1 mile NW of Toro Peak. 2250 Comment
  UC1595641  Phlox gracilis Steve Boyd and Orlando Mistretta 1991-5-9 6190 Riverside on ridge between Bedford Canyon and McBribe Canyon (along the Bedford Truck Trail, lower flank of the Santa Ana Mountains); Santa Ana Mountains 548 Comment
  JOTR35431A  Phoenix dactylifera Kain, Katie, Angela Sowa 2012-10-16 s.n. Riverside Joshua Tree National Park. southwest Eagle Mountains; steep rocky drainage approx. 1.5mi east of Cottonwood Canyon and 1.5mi north of park boundary 815 Comment
  RSA709638  Pholistoma auritum A. C. Sanders, Guy Bruyea 2004-4-2 27444 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
  UC197348  Pholistoma membranaceum Samuel B. Parish Mar 1883 21 Riverside borders of the Colorado Desert Cabezon; Colorado Desert, Cabezon Comment
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Jul 15 2009
  SD1137  Phoradendron bolleanum Edmund Jaeger 1925-12-4 Riverside Covington Flats, Little San Bernardino Mts. 1280 Comment
  CAS-BOT-BC135067  Phoradendron californicum Del Wiens 1953-12-5 866 Riverside Several miles S of Cottonwood Springs, Joshua Tree National Monument 213 Comment
  JEPS42583  Phoradendron californicum W. L. Jepson 1928-4-25 12576 Riverside Colorado Desert, Eagle Mountains, Cottonwood Spring Cottonwood Spring; Colorado Desert, Eagle Mts., Cottonwood Spring 731 Comment
  UC748989  Phoradendron californicum Susan Delano McKelvey 1935-12-6 5035 Riverside between Cottonwood Mts. and Mecca Comment
  UCR139382  Phoradendron californicum I. M. Johnston 1917-4-4 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Palm Canyon 427 Comment
  UCR272295  Phoradendron californicum Duncan S. Bell, Sarah J. De Groot, Cheryl Sevilla 2015-2-10 7749 Riverside Santa Rosa Mountains, a narrow unnamed canyon c. 2 air miles south of La Quinta, and c. 5.0 air miles northeast of the summit of Martinez Mountain 266 Comment
  RSA604716  Phoradendron macrophyllum Louis C. Wheeler 1961-10-8 7931 Riverside Temescal Valley: First big wash E of avocado mesa E of Wright Ranch. Comment
  UC306119  Phoradendron macrophyllum I. M. Johnston 1917-12-1 1810 Riverside n.w. Corona (Santa Ana R.); Santa Ana R. 182 Comment
  JOTR16866  Phoradendron villosum Wanrow, E. 1969-8-13 s.n. Riverside Joshua Tree National Park. BARKER DAM Comment
  RSA356998  Phoradendron villosum Robert F. Thorne, Percy C. Everett 1966-10-18 41857 Riverside Santa Rosa Mountains. Comment
  RSA500091  Phoradendron villosum Steve D. Boyd, Tim S. Ross, L. Arnseth 1989-4-2 3220 Riverside Vail Lake Area, at N end of Kolb Creek, near campground. 457 Comment
  UC1078929  Phoradendron villosum Job Kuijt 1958-3-14 1494 Riverside 12.4 mi. s. Palm Desert 1066 Comment
  POM14235  Physalis crassifolia Philip A. Munz, D. D. Keck 1922-4-9 4910 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 427 Comment
  RSA423816  Physalis crassifolia M. B. Dunkle 1934-2-25 3846 Riverside Cathedral Canyon. Colorado Desert. 152 Comment
  UCR37627  Physalis crassifolia George K. Helmkamp 1984-5-2 D 19 Riverside Little San Bernardino Mountains, Big Morongo Canyon, 3 - 3.5 miles below the caretaker's house at the Big Morongo Preserve 610 Comment
  CSUSB764  Physalis crassifolia var. crassifolia Wayne White 1975-5-24 Riverside Chuckwalla Mountains Chuckwalla Mountains. On Highway I-10 to Red Cloud Road. Colorado Desert. 609 Comment
  JOTR35302  Physaria tenella Andre, Jim 2012-4-11 20800 Riverside Joshua Tree National Park. western margin of Eagle Mountains, along road to Cottonwood Spring (Utah Trail), 0.7mi N of Cottonwood Visitor Center 956 Comment
  UCR77756  Pilularia americana Steve Boyd, T. S. Ross, D. Zippin, T. Oberbauer 1991-6-14 6348 Riverside Peninsular Range, Skunk Hollow area, 2 mi east of Murrieta Hot Springs, just west of Second San Diego Aquaduct Comment
  UCR167862  Pinus T. B. Salvato, John F. Green 2004-5-27 647 Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1463 Comment
  SD136361  Pinus flexilis Carl B. Wolf 1932-8-5 Riverside slopes of San Jacinto Peak, along trail above Round Valley 2925 Comment
  UC1506123  Pinus jeffreyi R. T. Clausen 1963-4-24 63065 Riverside summit Thomas Mt; Transverse Ranges, San Jacinto Mts., Thomas Mt 2080 Comment
  UCSB9212  Pinus jeffreyi Koran, Jr., John 1958-5-16 Riverside 5.2 miles east of Idyllwild on Idyllwild-Banning Hwy. 1584 Comment
  RSA762002  Pinus lambertiana Shawn Krosnick, C. Martinez, N. Fraga, L. McDade 2010-8-14 654 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  UCSB83  Pinus lambertiana Bobkowski, Jr., Vincent 1960-5-14 Riverside Black Mountain Camp, San Bernardino National Forest, San Jacinto Mountains Comment
  CAS-BOT-BC79053  Pinus ponderosa H. E. McMinn 1926-7-2 1500 Riverside Tahquitz Peak Trail - San Jacinto Mts. Comment
  POM230743  Pinus ponderosa I. W. Clokey, E. Y. Anderson 1935-8-21 6506 Riverside Idlewilde-Banning. Calif. San Jacinto Range. 1500 Comment
  SBBG113408  Pinus quadrifolia D. Wilken with E. Painter 2000-11-4 15866 Riverside St Hwy 71, ca. 4 mi E of Anza, N of Burnt Valley, SE base of Thomas Mtn 1400 Comment
  RSA770725  Pistia stratiotes Dave Goodward 2010-10-6 s.n. Riverside Thermal, 89635 Ave. 81, west of Hwy 86 and Harrison St. -35 Comment
  SD239486  Pistia stratiotes Dave Goodward 2010-10-6 Riverside Sonoran (Colorado) Desert: Thermal, 89635 Ave. 81, west of Hwy 86 and Harrison St. (Oasis 7.5'Q). Commercial fish production pond. -35 Comment
  UCR156297  Pityrogramma triangularis T. B. Salvato, Kent Beaman 2005-5-16 844 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
  RSA781364  Plagiobothrys acanthocarpus A. C. Sanders, T. B. Salvato 2011-4-1 38943 Riverside Lake Elsinore, SW of Baker St. along dirt branch road to microwave tower, near large water tank on hill 409 Comment
  UCR260576  Plagiobothrys arizonicus A. C. Sanders, Nina Kidd, Jeff Crain 2015-3-31 41539 Riverside Peninsular Range; Eastern Foot of Santa Ana Mtns., Temescal Canyon, southwest side of Temescal Canyon Rd. near El Hermano Road junction 313 Comment
  SEINET6097276  Plagiobothrys canescens Unknown 1996-4-19 Riverside Idyllwild Area. Strawberry Creek between crossing at Circle Drive and Humber Park. Comment
  UCR107398  Plagiobothrys canescens B. G. Pitzer 1997-3-23 2981 Riverside Perris-Aguanga Basin Region, Lakeview Mtns, c. 1 air mi. SSW of Mt. Rudolph, along powerline road 0.3 mi. east of Contour (Juniper Flats) Rd. 610 Comment
  UCR120650  Plagiobothrys collinus D. E. Bramlet, P. Jacks, S. Goode 1989-4-4 1791 Riverside Perris-Aguanga Basin Region, Lake Skinner, north of the lake on the S-facing slope of Bachelor Mountain 488 Comment
  UCR246593  Plagiobothrys collinus var. fulvescens A. C. Sanders 2012-3-22 39986 Riverside Peninsular Range; Temescal Valley, foot of Santa Ana Mtns., SE of intersection of Glen Eden Rd. and I-15 Frontage Rd., south of Corona (Lee) Lake 378 Comment
  UCR256897  Plagiobothrys collinus var. ursinus LeRoy Gross, Grace Cho 2013-4-9 5996 Riverside Peninsular Range; San Jacinto Mountains, Garner Ranch, east of Lake Hemet and Hwy 74, west of the ranch buildings, north of the road to the buildings, and south of the old landing strip 1332 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
  POM146287  Plagiobothrys leptocladus J. B. Feudge 1927-5-19 1751 Riverside Perris 396 Comment
  SD244105  Plagiobothrys leptocladus T. B. Salvato, Matt MallA^, Tom Sullivan 2013-3-27 7442 Riverside Perris-Aguanga Basin: Menifee, vacant lot north of Newcomp Substation, at southwest corner of Lazy Creek Road and Murrieta Road, (Romoland 7.5'Q) 431 Comment
  HSC3768  Plagiobothrys nothofulvus C. L. Hitchcock, C. V. Muhlick 1964-3-17 23082 Riverside 8 mi. SE of Corona, along road to Elsinore Comment
  SD133149  Plagiobothrys stipitatus var. micranthus A. C. Sanders, Rey and D. Willick 1991-4-19 10927 Riverside Edgemont area east of Sycamore Canyon 466 Comment
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Apr 5 2007
  UCR107411  Plagiobothrys tenellus B. G. Pitzer 1997-3-23 2966 Riverside Perris-Aguanga Basin Region, Lakeview Mtns, c. 1 air mi. SSW of Mt. Rudolph, along powerline road 0.3 mi. east of Contour (Juniper Flats) Rd. 610 Comment
  UCR266469  Plagiobothrys tenellus Mitch Provance, Robin Kinmont 2015-3-27 315- 53 Riverside Perris-Aguanga Basin Region, Murrieta Hot Springs, Leon Rd. (unmarked dirt portion) on unnamed hill c. 0.5 miles W of Skunk Hollow, vicinity of W terminus of Promontory Parkway. 430 Comment
  POM184244  Plantago erecta P. A. Munz 1932-3-24 12021 Riverside North of Elsinore 305 Comment
  SBBG104035  Plantago erecta A. C. Sanders 1993-4-1 13663 Riverside western edge of Hemet, 14 acre parcel at NE corner of intersection of Myers St and Devonshire Ave, 0.75 mi NE of the intersection of Florida Ave (Hwy 74) and Warren Rd 460 Comment
  UC1536775  Plantago erecta G. H. True 1935-3-13 89 Riverside Mockingbird Canyon 457 Comment
  UCR233179A  Plantago ovata Jim Andre, Glenn L. Clifton 2011-2-22 17427 Riverside Mecca Hills, along Box Canyon Road, 8.5 mi northeast of town of Mecca 171 Comment
  POM15000  Plantago ovata var. fastigiata Mary F. Spencer 1922-3-27 1488 Riverside Canyon prope [near] Mecca 49 Comment
  RSA402036B  Plantago ovata var. fastigiata M. B. Dunkle 1933-5-6 3446 Riverside Painted Canyon Comment
  UCR261452  Plantago patagonica A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41446 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms 439 Comment
  CSUSB1033  Platanus racemosa A. Belding 1967-5-12 S.N. Riverside B.S.A. Camp Evans, at the end of Indian Hill Rd. Riparian Valley Comment
  UCR100315  Platanus racemosa B. G. Pitzer 1997-4-20 3169 Riverside Lakeview Mtns, top of the hill on Dutton Street, just east of Horseshoe Trail, at a point c. 0.4 mi. north of Stagecoach Road. 640 Comment
  UCR270186  Platanus racemosa A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-2 42409 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, vicinity of lab and old Emerson house site 488 Comment
  RSA66236  Platystemon californicus F. W. Peirson 1922-5-21 3033 Riverside Along east side of Hemet Valley 1357 Comment
  UC167977  Platystemon californicus Katharine Brandegee and Charlotte M. Wilder May 12 1905-May 17 1905 Riverside Wilders near Riverside; near Riverside Comment
  POM9014  Platystemon californicus P. A. Munz, R. D. Harwood 1920-3-20 3395 Riverside 5 miles S of Corona 305 Comment
  SEINET3817958 Image available Plectritis macrocera Marcus E. Jones 1882-4-24 3167 Riverside San Jacinto Comment
  UCR148047  Pleuraphis rigida Steve Boyd, Et al. 2004-5-14 11293 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
  POM41778  Pleurocoronis pluriseta Marcus E. Jones 1906-4-26 s.n. Riverside Indio Comment
  UCR125298  Pluchea purpurascens A. C. Sanders 2002-11-21 25633 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy,' between Bixby and Brown Canyons 457 Comment
  RSA472129  Pluchea sericea Anstruther Davidson 1893-4-10 s.n. Riverside Palm Springs. Comment
  UCR163656  Pluchea sericea Scott D. White 1993-7-1 1607 Riverside Peninsular Range; Perris-Aguanga Basin Region, Wilson Creek, at point where it crosses Sage Rd (Hwy R3), c. 2 rd. miles N of Radec 494 Comment
  POM14436  Poa fendleriana P. A. Munz, I. M. Johnston 1922-5-21 5505 Riverside Kenworthy, San Jacinto Mountains 1402 Comment
  RSA234056  Poa infirma R. F. Thorne, E. W. Lathrop 1969-5-12 37948 Riverside Santa Ana Mountains, Santa Rosa Plateau, Mesa de Colorado, Rancho California 624 Comment
  UC1931207  Poa pratensis Scott D. White, Justin Wood 2008-6-19 12268 Riverside San Jacinto Mountains: Meadows at Baldy Mtn. Comment
  SEINET10523398  Poa pratensis David B. Dunn 1946-8-17 Dunn 2681 Riverside Grass near stream at camp in Taquity valley damp meadow area. Grass San Jacinto Mts. 2438 Comment
  RSA801939  Poa pratensis subsp. pratensis LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6180 Riverside End of Apela Drive, west end of Strawberry Valley. And south of road (5S24) that runs out to the sewage disposal ponds. Collections are between this road, and Strawberry Creek., Basically ridge north of Strawberry Creek and creek north of this ridge, south of road. This draw drains into Strawberry Creek. 1524 Comment
  RSA0120477  Poa secunda Duncan S. Bell 2016-3-13 8927 Riverside Whitewater Canyon; in the vicinity of Painted Hill, approximately 2.5 air miles southeast of the Ranger Station (trout pond). 613 Comment
  RSA85586  Poa secunda J. C. Roos 1952-4-2 5453 Riverside At Edgemont near Box Springs. 488 Comment
  UCR27283  Poa secunda E. W. Lathrop 1966-4-27 6207 Riverside Santa Ana Mtns., Main Divide Truck Trail between El Cariso and San Mateo Canyon, Cleveland National Forest. 1220 Comment
  UC149806  Poa secunda subsp. secunda H. M. Hall 1902-4-26 2973 Riverside vicinity of Riverside (Box Springs Mt) 685 Comment
  RSA0013161  Polygonum aviculare LeRoy Gross, Caitlin Elam 2013-5-14 6061 Riverside Garner cattle company (Garner ranch), east of Lake Hemet, and highway 74. West of the ranch's buildings. North of the road to the buildings, and south of the old landing strip. 1332 Comment
  POM12882  Polygonum bistortoides P. A. Munz 1922-7-6 6001 Riverside San Jacinto Mountains: Tahquitz Valley. 2195 Comment
  UC219083  Polygonum bistortoides P. A. Munz 1922-7-6 6001 Riverside Tahquitz Valley San Jacinto Mts. 2194 Comment
  SEINET1004376  Polygonum convolvulus T. B. Salvato, Kent Beaman 2005-1 855 Riverside San Jancito Mtn foothills; San Jacinto River E of Valle Vista just downstream from Forest Service boundry and N of CA Hwy 74. 549 Comment
  CDA22826  Polygonum lapathifolium P. Gordon-Reedy 1996-1 s.n. Riverside Shores of Lake Skinner. 0 Comment
  RSA162794  Polypodium californicum J. D. Olmsted 1959-4-23 459 Riverside Spring Trail at Beacon Pines Ranch; 9 mi. SW of Corona, Santa Ana Mountains 732 Comment
  SEINET218263 Image available Polypodium californicum O. W. Robinson 1916-3-20 Riverside Millers Canyon, Murietta Comment
  UCD91193  Polypogon maritimus K. Esau 1935-6-15 s.n. Riverside Hemet Valley. Comment
  JOTR16788  Polypogon monspeliensis Moore, Sue 1967-5-3 s.n. Riverside Joshua Tree National Park. WHITE TANK 1219 Comment
  UCR167426  Polypogon monspeliensis John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, WNW of Rancho Dos Palmas between Coachella Canal siphons 29 and 30 24 Comment
  CAS-BOT-BC237462  Polypogon viridis John Thomas Howell 1959-9-26 35069 Riverside San Jacinto Mountains: Bautista Canyon 951 Comment
  UCR249220  Populus fremontii subsp. fremontii LeRoy Gross, Bart O'Brien 2013-3-18 5951 Riverside Coastal Plains and Basins; San Bernardino Basin Region, Fairmount Park, west side of Lake Evans, Riverside, NE of Mt. Rubidoux 238 Comment
  RSA180294  Populus trichocarpa E. W. Lathrop 1965-4-18 5651 Riverside 10 miles west of Murrieta. Comment
  UCR280994  Porophyllum gracile Mitch Provance, Matt K. Beyers, John Hazlett, Douglas Gordon-Blackwood 2017-4-13 417- 56 Riverside Peninsular Ranges, Wildomar, Sedco Hills, along transmission road between Lost Rd. and Lake View Rd. 564 Comment
  UCR89542  Porophyllum gracile Bern Schwenn 1994-4-30 s.n. Riverside southern Mojave Desert, Joshua Tree National Monument; E side of Hexie Mtns., Porcupine Wash, near the junction with Ruby Lee Canyon 732 Comment
  SD233340  Portulaca oleracea Duncan S. Bell 2012-9-13 4194 Riverside Rice Valley; east side of the Arica Mountains; approximately 6 air miles southeast of the ghost town of Rice and approximately 5.5 air miles east of Priests Well. 202 Comment
  RSA597532  Potamogeton L. C. Wheeler 1957-11-30 7276 Riverside Coachella drainage ditch, ca. 1.5 mi. south southeast of Thermal. Comment
  UCR277755  Potamogeton Mitch Provance 2011-7-29 17037 Riverside Santa Ana River Valley, Santa Ana River Wash, area between Market St. and the 60 Freeway 244 Comment
  CAS-BOT-BC267206  Potamogeton foliosus Lathrop; Thorne 1967-9-26 6622 Riverside 6 miles NW of Murrieta Comment
  RSA0005603  Potentilla acuminata H. M. Hall 1901-8-2 2605 Riverside Chino Creek below Round Valley, San Jacinto Mtns. Comment
  UCR240622  Potentilla glandulosa Tracy Tennant, Mitch Provance 1998-6-16 MOR- 433 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper Millard Canyon, north of Cabazon, in wash just north of woodland stand M15 1098 Comment
  RSA0013892  Proboscidea althaeifolia J. C. Roos 1965-9-5 s.n. Riverside 17 mi. W of Blythe Comment
  CAS-BOT-BC206985  Prosopis glandulosa var. torreyana Alice Eastwood 1913-4-30 3063 Riverside Palm Springs Comment
  UCD108216  Prosopis glandulosa var. torreyana Richard Bates 1949-4-26 s.n. Riverside Indio. Comment
  UC12739  Prunus emarginata H. M. Hall July, 1901 Riverside vicinity of Deer Springs ( Accordeon Creek, San Jacinto Mountains); San Jacinto Mountains, Accordeon Creek 2743 Comment
  UCR39192  Prunus fasciculata M. L. Rosczyk, G. K. Helmkamp 1985-4-4 204 Riverside Little San Bernardino Mtns/ Sonoran (Colorado) Desert, Big Morongo Preserve, south of Morongo Valley, at the west side of the main canyon c. 0.5 miles north of Indian Ave. 503 Comment
  SBBG3056  Prunus fremontii H. and M. Dearing 1941-4-9 4634 Riverside Palms to Pines Hwy Comment
  RSA0021857  Prunus fremontii H. de Forest 1924-4-13 s.n. Riverside Mojave Desert, Tahquitz Canyon. Comment
  JOTR01283  Psathyrotes ramosissima Cole, James E. 1941-4-13 580 Riverside Joshua Tree National Park. PINTO PASS; 0.5 MILES NORTH OF MEEK'S CABIN 609 Comment
  RSA614133  Pseudognaphalium biolettii D. L. Banks 1997-2-23 1300 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, north of Pechanga Road, south of Anza Road, just NNW of San Gabriel Church in the area burned by the 1996 Temecula Fire. 402 Comment
  SDSU13557  Pseudognaphalium biolettii W. Miller with C. Mosse 1972-7-20 Riverside Comment
  UCR281003  Pseudognaphalium biolettii Mitch Provance, Matt K. Beyers 2017-6-8 617- 15 Riverside Temescal Valley, Indian Wash, SW of I-15, S side of De Palma Rd., about 0.2 mi WNW of inter. with Glen Eden Rd. 366 Comment
  UCR98065  Pseudognaphalium biolettii A. C. Sanders 1997-3-1 19714 Riverside Riverside, Box Springs Mtns.: Coyote Hill (Bench Mark 'Versity', 1386 ft.) and ridge S and SE of the UCR Botanic Garden 427 Comment
  UC489194  Pseudognaphalium stramineum C. V. Meyer 1928-7-30 589 Riverside Saunder's Meadow San Jacinto Mts., Saunder's Meadow 1676 Comment
  IRVC2821  Pseudotsuga macrocarpa R. H. Whittaker, W. A. Niering 1963-5-27 SJ 6 Riverside Hemet Hwy, between Hemet and Mtn Center. Peninsular Ranges, San Jacinto Mountains 1250 Comment
  UCR220340  Psilocarphus brevissimus D. E. Bramlet 1991-5-7 2123 Riverside Peninsular Range; Perris-Aguanga Basin Region, San Jacinto Valley, 8.2 km SW of Hemet, just NE of jct. of California Ave. & Marvin Hull Road, c. 50-150 m north of the AT&SF railroad tracks & 300 m west of MWD canal 500 Comment
  CAS-BOT-BC346354  Psorothamnus Annie M. Alexander; Louise Kellogg 1941-5-22 2217 Riverside 1 1/2 mi. N. Cottonwood Spring, Eagle Mountains 975 Comment
  CAS-BOT-BC346362  Psorothamnus Marcus E. A M Jones 1925-9-7 s.n. Riverside Palm Spring Comment
  JOTR29306  Psorothamnus arborescens var. simplicifolius La Doux, Tasha, Mike Bell 2006-5-17 1383 Riverside Joshua Tree National Park. East Deception Canyon Comment
  RSA689438  Psorothamnus arborescens var. simplicifolius Scott D. White, Michael Honer 2003-5-13 9238 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
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Nov 27 2012
  UCR38699  Psorothamnus arborescens var. simplicifolius J. M. Stewart 1985-4-28 8515 Riverside Western Colorado Desert, Coachella Valley, along the north side of Hwy I-10, 1 mi west of Indian Ave. 244 Comment
  CAS-BOT-BC353626  Psorothamnus emoryi Frank A. Thackery 1928-4-24 3 Riverside Edom Comment
  CAS-BOT-BC353630  Psorothamnus emoryi Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring 60 Comment
  CAS-BOT-BC353644  Psorothamnus emoryi E. R. Johnson 1928-6-8 s.n. Riverside along highway, south of Mecca, west side of Salton Sea Comment
  UC168727  Psorothamnus emoryi Marcus E. Jones, A. M. 1903-5-8 Riverside Indio -7 Comment
  UC56449  Psorothamnus emoryi F. Gilman 1902-1 Riverside Palm Springs Palm Springs (Southern California) Comment
  UC570208  Psorothamnus emoryi H. S. Yates 1936-4-7 5439 Riverside two mi s Willis Palms (Coachella Valley); , s of Willis Palms 243 Comment
  UCR177408  Psorothamnus emoryi John Wear 2004-4-1 s.n. Riverside Sonoran (Colorado) Desert, Palm Springs, 2 acre parcel c. 320 ft. east of intersection of West Vista Chino and Via Norte on the north side of Vista Chino, 310 and 320 West Vista Chino Road 183 Comment
  SEINET3131123  Psorothamnus emoryi var. emoryi S. B. Parish 1906-5-10 sn Riverside On Colorado desert at Palm Springs Comment
  SBBG21967  Psorothamnus fremontii R. F. Thorne 1964-5-3 33849 Riverside near hwy ca. 4 mi S of Morongo Valley, ca. 3 mi S of San Bernardino Co line Comment
  RSA303510  Psorothamnus schottii James R. Shevock 1971-5-8 1029 Riverside S Cottonwood Springs, Joshua Tree Natl Monument. 549 Comment
  RSA4874  Psorothamnus schottii Carl B. Wolf 1932-4-27 2990 Riverside Colorado Desert, 14 miles E. of Mecca on Blythe Road 152 Comment
  RSA498705  Psorothamnus schottii H. de Forest 1933-4-17 s.n. Riverside Chino Canyon, Colorado Desert. Comment
  RSA630290  Psorothamnus schottii R. S. Woglum 1937-04 302 Riverside Mojave Desert: Palm Springs. Comment
  UCR124002  Psorothamnus schottii George K. Helmkamp, E. A. Helmkamp 2001-4-14 6463 Riverside Coachella Valley, Indio Hills, 1.4 mi north of Ramon Rd on Avita Rd (Avita is 2.8 mi east of I-10) 46 Comment
  UCR241711  Psorothamnus schottii Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 44 Riverside Sonoran (Colorado) Desert, near Joshua Tree National Park, Coachella Valley, Dillon Rd. 4.21 miles north of Hwy 10 in Indio 91 Comment
  UCSB18653  Psorothamnus schottii Winn, Will 1963-4-8 Riverside U.S. Highway 60-70, 31.2 miles of Desert Center 304 Comment
  JOTR32399  Psorothamnus spinosus Harding, Mitzi, A. Benton 2011-7-13 16 Riverside Joshua Tree National Park. Pinto Basin; Smoke Tree Wash; sandy, open flat along Pinto Basin road, just north of Smoke Tree Wash 809 Comment
  SEINET6656793  Psorothamnus spinosus John R. Crutchfield 1965-6-16 212 Riverside 25 mi N of Blythe, along the Colorado River. Off U.S. Hy. 95.; 0 Comment
  UCR99810  Psorothamnus spinosus B. G. Pitzer 1996-11-11 2933 Riverside Sonoran (Colorado) Desert, Orocopia Mts: Salt Creek Wash, at intersection w/ SR211, 4 rd. mi. south of Bob's Cabin 274 Comment
  UCSB3067  Psorothamnus spinosus DeWitt, Jack 1959-5-19 Riverside One mile S on Cathedral City on road to Palm Springs from Palm Desert Comment
  RSA762186  Pteridium aquilinum var. pubescens Peter Guiden, C. Martinez, N. Fraga, L. McDade 2010-8-14 67 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  SFV13153  Pteridium aquilinum var. pubescens M. J. Thor 1982-9-17 144 Riverside San Jacinto Mountains Idyllwild Park. 1616 Comment
  POM13114  Pterostegia drymarioides P. A. Munz, I. M. Johnston 1922-5-19 5341 Riverside 5 mi. E of Murietta. 518 Comment
  RSA245520  Pterostegia drymarioides Larry E. DeBuhr 1973-3-29 941 Riverside About 3 miles north of I-10 along Hwy 62. Comment
  RSA510313  Pterostegia drymarioides Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mtns., ca 1 mi SE of town on [of] Nuevo. 640 Comment
  UC6927  Pterostegia drymarioides Mrs. Gregory 1892-1 Riverside San Jacinto Comment
  UCR152636  Pterostegia drymarioides A. C. Sanders 2005-4-22 29611 Riverside Gavilan Hills, Gavilan Plateau c. 0.75 air mi. SE of summit of Gavilan Peak 625 Comment
  UCR76076  Pterostegia drymarioides B. G. Pitzer, Stu Hemstreet 1992-5-21 1939 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
  LA102371  Pulicaria paludosa John C. Roos; 1965-6-23 Riverside Palm Springs Comment
  SD146003  Pulicaria paludosa A. C. Sanders, Pam MacKay, et al. 1996-11-23 19661 Riverside San Bernardino Mountains; Whitewater Canyon just above Bonnie Bell, 2.3 miles below the stream crossing near the fish hatchery. 534 Comment
  RSA658  Pycnanthemum californicum J. T. Howell 1928-7-7 1032 Riverside Near Glen Ivy. 457 Comment
  SD260961  Quercus Mitch Provance 2012-9-5 912 17 Riverside Badlands of Western Riverside County: Potrero Creek, S end of City of Beaumont, E side of Highland Spring Rd., about 100 yards south of intersection with Breckenridge Ave. 754 Comment
  UC5588  Quercus X morehus H. M. Hall Aug 1901 2643 Riverside vicinity Chalk Hill; San Jacinto Mts. 1402 Comment
  RSA0106807  Quercus agrifolia Mitch Provance, Jeremiah George 2012-8-4 812 -44 Riverside Western Riverside County: Badlands south of Beaumont, Potrero Creek, E side of Highland Springs Ave., between Breckenridge and the entrance to Potrero. 752 Comment
  POM50390  Quercus agrifolia var. agrifolia W. W. Eggleston 1924-3-10 19542 Riverside San Jacinto Station, Cleveland Forest 600 Comment
  SEINET10622083  Quercus agrifolia var. agrifolia Greg Gust, Leith Nye 2005-3-11 Gust 540 Riverside Lake Elsinore City Limits. Hwy 74 ca. 1 mile W of Lake Elsinore on hill slope pullout river basin. 481 Comment
  SD229166  Quercus berberidifolia Dick Schwenkmeyer 2012-3-26 658 Riverside Mt. San Jacinto: Garner Valley, Kenworthy (site #2), approx 1 mile northeast of junction of Highway 74 and Morris Ranch Road, base of steep bouldery slope. 1374 Comment
  UCD45615  Quercus cornelius-mulleri Mary L. Bowernan 1946-4-15 4101 Riverside Joshua Tree National Monument, Live Oak Tank (3 mi. W. of junction of Keyes Point and Pinto Basin Highway), adjacent to wash (20 feet from #4100, an aberrant oak tree). Comment
  UCD46014  Quercus engelmannii Frank C. Vasek 1975-9-11 s.n. Riverside Large tree in Horsethief Creek Canyon, southwest of Pinyon Flat, where the Cactus Spring Trail crosses, Riverside County, California. Comment
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Oct 4 2019
  UCR189773  Quercus engelmannii Theresa Johnson 2006-10-10 289 Riverside Peninsular Ranges, Perris-Aguanga Basin, San Jacinto Wildlife Area, Potrero unit south side. 1.7 mi east of Lamb Canyon road. In steep ravine near air strip 630 Comment
  CAS-BOT-BC105327  Quercus kelloggii H. E. McMinn 1925-7-2 1499 Riverside Tahquitz Trail to Tahquitz Pk., San Jacinto Mts. Comment
  SDSU6976  Quercus kelloggii Sammuel R. Frank 1962-5-23 Riverside San Jacinto Mountains. Comment
  RSA663307  Quercus lobata Mitch Provance 1998-6-24 749 Riverside Jurupa Mountains: Glen Avon Heights, area N of the end of Lindsay St. 253 Comment
  UC936255  Quercus palmeri James E. Cole 1947-2-6 1001 Riverside Lower Covington Flat, San Bernardino Base and Meridian Joshua Tree National Monument 1463 Comment
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Jul 27 2009
  POM312161  Quercus turbinella N. C. Cooper 1944-5-20 1307 Riverside Palms to Pines Hwy., San Jacinto Mtns. 1220 Comment
  RSA489833  Quercus turbinella D. Charlton 1988-5-28 2128 Riverside Santa Rosa Mts. S of Hwy. 74 dirt road to Toro and Santa Rosa Peaks. Toro Camp Area. 2287 Comment
  CAS-BOT-BC134753  Quercus wislizeni W. R. Dudley; F. H. Lamb 1896-6-14 4486 Riverside Cuddy Canyon Comment
  UCD47608  Quercus wislizeni Louis B. Ziegler 1969-10-24 s.n. Riverside Near Kenworthy Ranger Station, Hemet Valley, San Jacinto Mts. 1417 Comment
  UCR241247  Quercus wislizeni T. B. Salvato, Tracy Tennant 1998-4-16 MOR- 1211 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Potrero Canyon about 1 mile above locked gate, east side of road near old corrals, tree stand P-03 976 Comment
  RSA125969  Quercus wislizeni var. frutescens E. K. Balls, P. C. Everett 1957-11-4 22749 Riverside Snow Creek near old Fish Hatchery, north base San Jacinto Mountains. 701 Comment
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Jun 13 2008
  RSA60418  Quercus wislizeni var. frutescens Frank W. Gould 1943-4-18 2136 Riverside 8 miles east [NW] of Idyllwild Comment
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Sep 29 2011
  UCR171  Quercus wislizeni var. frutescens Frank C. Vasek 1955-5-21 215 Riverside San Jacinto Mtns, 1 mile east of Santa Rosa Summit 1463 Comment
  RSA220971  Rafinesquia californica E. W. Lathrop 1966-5-8 6405 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
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Apr 28 2011
  UCR214578  Rafinesquia californica A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37844 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
  CAS-BOT-BC362625  Rafinesquia neomexicana Roxana S. Ferris 1953-3-11 12605 Riverside Crossing on Highway 60-70 of Eagle Mountain Iron Mine Railroad Comment
  RSA444569  Rafinesquia neomexicana Walter Wisura 1988-3-23 4213 Riverside Highway 62 immediately E of Robinson Road, West of Twentynine Palms. Comment
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Sep 7 2013
  RSA781614  Rafinesquia neomexicana Duncan S. Bell 2009-3-8 81 Riverside Arica Mountains: northwest side of mountain range approximately 3.2 air miles northwest of Priest Well or approximately 6.5 air miles southwest of the ghost town of Rice. 479 Comment
  SEINET6088758  Rafinesquia neomexicana Unknown 1944-3-25 1038 Riverside Morongo Pass. Comment
  UC830533  Rafinesquia neomexicana I. W. Clokey 1935-4-17 6967 Riverside Cottonwood Springs Comment
  UC9363  Ranunculus alismifolius var. alismellus H. M. Hall July, 1901 2405 Riverside Tamarack Valley San Jacinto Mountains 2804 Comment
  CAS-BOT-BC378495  Ranunculus californicus var. californicus Edmund C. Jaeger 1925-3-21 s.n. Riverside Temecula, northwest of village Comment
  UCR30480  Ranunculus hebecarpus John C. Roos 1950-5-6 4790 Riverside Santa Ana Mtns., Hagador Canyon 427 Comment
  UCR141231  Rhamnus californica subsp. tomentella A. C. Sanders, Mike Misenhelter 2004-10-6 28836 Riverside Santa Ana Mtns./Santa Rosa Plateau, hill 2139 at west end of the Mesa De Colorado, private land on the west side of Via Volcano adjacent to the Santa Rosa Plat. Ecol. Reserve 640 Comment
  SD137644  Rhamnus crocea Darin L. Banks 1995-3-15 58 Riverside NW Palomar Mtns., Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., Dorland Mtn. area 680 Comment
  UCR90986  Rhamnus crocea Scott D. White 1996-3-31 3872 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
  RSA221041  Rhamnus ilicifolia E. W. Lathrop 1966-5-8 6433 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA38493  Rhamnus ilicifolia P. A. Munz 1946-10-19 11569 -a Riverside 1 miles east of Anza. 1159 Comment
  UC18532  Rhamnus ilicifolia Mrs. Gregory 1892-1 Riverside San Jacinto Comment
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Nov 9 2009
  UCR106919  Rhamnus ilicifolia D. L. Banks, Lauren Raz 1996-11-5 1159 Riverside Agua Tibia Mountains, Pechanga Indian Reservation, south of San Gabriel Church; along a newly established firebreak along a NW-SE running ridgeline, near the water tank in section 34 421 Comment
  UCR106345  Rhamnus tomentella John Wear, N. Moorhatch 1996-9-20 s.n. Riverside San Jacinto Mtns., upper end of Garner Valley 1433 Comment
  RSA787603  Rhododendron occidentale Keith E. Hoffmaster 1937-7-5 817 Riverside San Jacinto Mountains, Pine Flat. Comment
  HSC99159  Rhus aromatica Paul J. CaraDonna 2008-1 124 Riverside Jumbo Rock Campground, N of site 78, Joshua Tree National Park. 1329 Comment
  UCR527  Rhus aromatica Eugene Cardiff, Ken Smith 1954-4-5 s.n. Riverside Upper Santa Ana River/San Bernardino Valley, Jurupa Mountains, northwest of Riverside 671 Comment
  RSA503162  Rhus ovata Gary D. Wallace, G. Cromwell 1966-4-16 464 Riverside Near Alber Hill and Lake Elsinore. 823 Comment
  UC1130537  Rhus ovata H. S. Yates 1937-3-24 6469 Riverside s of Pinyon Flat 975 Comment
  UCR115381  Rhus ovata June Latting 1978-5-4 s.n. Riverside Santa Ana Mountains, Sierra Peak 929 Comment
  RSA76945  Rhus trilobata var. pilosissima F. W. Peirson 1928-3-24 7727 Riverside Large clumps along road up Temecula River, just north of Dripping Spring. 457 Comment
  UCR102735  Ribes indecorum B. G. Pitzer 1998-1-25 3427 Riverside Lakeview Mtns, Pulsar View Road, c. 0.5-0.75 mile uphill from the water tank at base of hills on Warren Road; c. 1 mile (airline) north of Juniper Flat Road 610 Comment
  UCR122457  Ribes indecorum Scott D. White 1993-3-15 1195 Riverside Peninsular Range, Elsinore, Hwy 74, just west of NW corner of Lake Elsinore. Dickey Canyon. Comment
  SEINET13942526 Image available Ribes indecorum S. Lambert 1981-1 1919 Riverside San Bernadino National Forest, hwy 74, 6.0 miles W Mountain Center, 3000 feet elevation, streamside 914 Comment
  VVC471  Ribes malvaceum P. J. MacKay 1975-1 s.n. Riverside Transverse Mountain Range, "Few miles S. of Banning on Hwy. 243, 22.18 miles from county line"??? the liberty was taken to juxtapose a google location as 22 miles from N or S Co line places the location in Idyllwild and the label data clearly states chaparral and a few miles S of Banning; so.... 1534 Comment
  CAS-BOT-BC212609  Ribes montigenum Mrs. C. M. Wilder 1909-6-12 946 Riverside Round Valley, San Jacinto Mountains Comment
  SD2150  Ribes quercetorum Edmund Jaeger 1925-12-23 Riverside Aguanga 1067 Comment
  RSA221070  Ribes speciosum E. W. Lathrop 1966-3-23 6087 Riverside 4 miles west of Corona between Tin Mine Canyon & Santiago Peak, Skyline Drive. 610 Comment
  CAS-BOT-BC173857  Ribes velutinum Samuel B. Parish 1894-2-25 s.n. Riverside Reche [Canon] Canyon Comment
  RSA648215  Ricinus communis Stephen Hill 1981-2-16 13 Riverside Cajalco Rd. 1 mile E. of hwy 15. Comment
  RSA722426  Romneya coulteri Pomeroy 1929-5-11 s.n. Riverside Glenn Ivy Comment
  UCR213493  Romneya coulteri A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-18 38413 Riverside Peninsular Range, southeastern Gavilan Hills near Alberhill, north of Concordia Ranch Rd. at north end of Black Powder Rd. 399 Comment
  CSUSB504  Rorippa nasturtium-aquaticum J. Operskalski Apr 1976 S. N. Riverside Palm Springs Tahquity Canyon on hill Comment
  UC1563097  Rorippa nasturtium-aquaticum Steve Boyd, Tim Ross, Laurel Arnseth 1989-5-7 3563 Riverside along Arroyo Seco drainage from jtn with Kolb Creek (s to w/in 1/4 mi Highway 79); Vail Lake Area, along Arroyo Seco drainage, Kolb Creek 457 Comment
  UCR177322  Rorippa nasturtium-aquaticum Scott D. White, Michael Honer 2003-5-27 9413 Riverside Gavilan Hills / Temescal Canyon, hills and canyons c. 1 mile north of the I-15 Fwy and 1 mi east of Lake Street exit, south and/or west of unnamed peak '2349 549 Comment
  CAS-BOT-BC147543  Rosa californica I. M. Johnston 1918-5-30 1992 Riverside Temescal [Canon] Canyon (between Elsinore & Corona) 365 Comment
  RSA761753  Rosa californica Shawn Krosnick, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 648 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  UCR35160  Rubus parviflorus L. B. Ziegler 1967-7-5 177 Riverside San Jacinto Mtns, Canyon of the South Fork of the San Jacinto River 1829 Comment
  RSA0049527  Rumex californicus John Roos 1952-5-26 5719 Riverside Haas' Ranch, Reche Canyon. 457 Comment
  JOTR32381  Rumex crispus La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2489 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam; Small riparian pond environment with seasonally submerged muddy banks, surrounded by boulder outcrops (Stop 4) 1301 Comment
  UCR211729  Rumex pulcher Fred M. Roberts, D. E. Bramlet 2005-5-5 6181 Riverside Perris Basin, San Jacinto Valley, along MWD canal just north of Devonshire Road and west of Warren Road 458 Comment
  UCR281807  Rumex salicifolius Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-4-19 417- 97 Riverside Menifee Valley, Menifee, W side of Murrieta Rd., between Melido St. and Wickerd Rd. 482 Comment
  UCR35079  Rumex salicifolius var. denticulatus L. B. Ziegler 1969-6-10 373 Riverside San Jacinto Mtns., Hemet Valley (= Garner Valley) 1433 Comment
  UCR85247  Salazaria mexicana A. C. Sanders, P. J. MacKay, M. Jacobsmeyer, C. L. Sanders 1995-3-5 15988 Riverside Sonoran (Colorado) Desert, Orocopia Mtns, Maniobra Valley, 1.6-3 mi. south of frontage road (old Hwy 60) along Interstate 10, S to edge of BLM wilderness 610 Comment
  RSA586049  Salix exigua D. L. Banks, Steve D. Boyd 1995-3-16 101 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove, Arroyo Seco drainage. 555 Comment
  RSA701400  Salix exigua Steve D. Boyd, Aydee Virgen 2004-4-13 10860 Riverside San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon. Comment
  SBBG56034  Salix exigua C. Davidson 1977-4-7 5593 Riverside Whitewater Cyn Rd, near start of Pacific Crest Trail 609 Comment
  UCR97690  Salix exigua A. C. Sanders, G. Helmkamp 1997-3-15 19967 Riverside Lake Skinner area: lower Rawson Canyon, along the dirt road toward Bachelor Mountain 457 Comment
  SD1047  Salix gooddingii Carl W. Sharsmith 1932-3-20 14 Riverside Foot of east slope of Santa Rosa Mts., in Diablo Canyon, 3 m. above its mouth, near Clary's Coral Reef Ranch, Colorado Desert Comment
  UC506424  Salix gooddingii Carl Epling and Joseph Ewan 1933-5-12 7606 Riverside s shore Lake Elsinore Comment
  UCD110969  Salix gooddingii A. C. Sanders 1997-3-19 20037 Riverside Lake Skinner area: Lake Skinner, NW shore near inlet, SW foot of Bachelor Mtn. Comment
  UCR252611  Salix gooddingii T. B. Salvato, Matthew Malle 2013-4-2 7496 Riverside Perris-Aguanga Basin, Wildomar, c. 2 mi east of Lake Elsinore, west side of Mission Trail, north of Victorian Lane 387 Comment
  RSA0038297  Salix gooddingii Norman C. Cooper 1943-9-26 931 Riverside Cabazon 548 Comment
  CDA38727  Salix laevigata Mike Lahti 2013-4-13 PDR# 331 P06141939 Riverside East Hemet; Bautista Canyon. 0 Comment
  UCR270592  Salix laevigata John F. Emmel 1999-2-7 1606 Riverside San Jacinto Mountains, foothills at southwest edge of the range, Bautista Canyon, 0.4-0.5 road miles southeast of national forest boundary 723 Comment
  SD225104  Salix lasiolepis Scott D. White, Shelton Dowthit & Conservancy volunteers 1996-3-31 3848 Riverside Lk Skinner Area: Riverside Land Conservancy conservation easement site, about 1/2 air mi S of the reservoir, near East Benton Road. 533 Comment
  CAS-BOT-BC128444  Salix lasiolepis var. lasiolepis Marian L. Campbell 1921-3-19 38 Riverside Banning Comment
  RSA0010976  Salix scouleriana Robert F. Thorne, Walter Wisura 1977-9-17 50780 Riverside San Jacinto Mountain: Long Valley to Round Valley along trail to summit. 2591 Comment
  CDA23465  Salsola australis R. E. Riefner Jr. 2007-1-31 Jul- 32 Riverside City of Temecula, along Highway 79 at Bedford Court; east on block from I-5 Freeway. Comment
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Nov 27 2013
  UCR134612  Salsola paulsenii Marisa Sripracha, Kyle Boyd 2004-2-14 019 Riverside Sonoran (Colorado) Desert, Myoma, near 38th Street and Washington Ave, on the Coachella Valley Preserve 120 Comment
  RSA444941  Salsola tragus Ernest A. McGregor 1962-4-1 s.n. Riverside On Highway 71, south of Elsinor. Comment
  RSA357771  Saltugilia splendens R. F. Thorne, M. Z. Thorne 1973-3-30 42669 Riverside Morongo Valley Canyon: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, Mission Creek. 488 Comment
  RSA67070  Saltugilia splendens Verne Grant, Alva Grant 1951-7-22 16104 Riverside San Jacinto Mountains: Along road to Dark Canyon campsite, north of Idyllwild. 1829 Comment
  UCR100304  Salvia apiana B. G. Pitzer 1997-4-20 3194 Riverside Lakeview Mtns, Warren St. at base of hills, c. 1/2 mi. (airline) NE of Contour Ave. ( = Juniper Flat Road). Just past the turn-off to the water tank 534 Comment
  RSA13816  Salvia apiana var. compacta Victor Duran 1933-7-1 3491 Riverside Near Santa Rosa. Santa Rosa Mountains 1829 Comment
  UC489045  Salvia carduacea C. V. Meyer Jun 1927 151 Riverside Temecula Comment
  UCR59499  Salvia carduacea Steve Boyd, T. S. Ross, L. Arnseth 1989-4-2 3235 Riverside Peninsular Range, Vail Lake area, sandy valley at NE end of lake, north of Wilson Creek 488 Comment
  HSC78990  Salvia columbariae K. Berg 1981-5-1 357 Riverside San Jacinto Mtns. along Banning-Idyllwild Hwy. (243) below Mt. Eden Comment
  RSA33779  Salvia columbariae N. C. Cooper 1944-6-4 1349 Riverside Elsinore Mountain; Lookout at top. 1067 Comment
  SD146234  Salvia columbariae B. Pitzer, W. Ross 1998-3-8 3599 Riverside Colorado desert, N side of Hayfield Lake between lakebed and Hwy I-10 412 Comment
  UC1287103  Salvia columbariae C. L. Hitchcock 1966-3-15 24155 Riverside 1 mi e Glen Ivy Hot Springs Comment
  UCR114121  Salvia columbariae B. G. Pitzer, J. Ross 1998-3-8 3599 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR174371  Salvia columbariae A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32657 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
  UCSB39326  Salvia columbariae Jorgensen, Jan 1982-3-21 Riverside South entrance to Joshua Tree National Monument 600 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
  UCR35339  Salvia mellifera L. B. Ziegler 1969-4-25 346 Riverside San Jacinto Valley, hills on west side of valley in Coyote Pass area 518 Comment
  RSA82388  Salvia vaseyi F. W. Peirson 1933-4-13 10635 Riverside Deep Canyon to Santa Rosa Mts. road 488 Comment
  UCLA69751  Salvia vaseyi C. Epling and L. Haines 1937-5-7 Riverside 2 mi below Shumway (Palms-to-Pines Highway) Comment
  CAS-BOT-BC223224  Sanicula bipinnatifida Steve Boyd; Tim Ross; Laurel Arnseth 1990-3-29 3904 Riverside Vail Lake area, summit of 'Big' Oak Mtn, N. of lake 822 Comment
  RSA763018  Sanicula bipinnatifida John F. Green 2010-3-19 s.n. Riverside Menifee area, c. 5.5 miles NE of Murrieta, powerline route c. 500 ft. south of 90 deg bend in Briggs Rd 427 Comment
  UCR121647  Sanicula bipinnatifida A. C. Sanders, Kent Beaman 2002-5-10 25050 Riverside Santa Ana Mtns., Santa Rosa Plateau, hills west of the head of De Luz Creek, 0.4 mi. south of Tenaja Rd. on west side of Calle Roble near Avenida Matorral 671 Comment
  SD181730  Sanicula crassicaulis Scott D. White 2000-5-1 7737 Riverside Western foothills of Santa Ana Mountains near Bedford Canyon. 351 Comment
  RSA570234  Sanicula tuberosa Steve Boyd, Timothy S. Ross 1993-3-23 7908 Riverside Palomar Range south of Vail Lake at the north base of Agua Tibia Mountain, Agua Tibia Wilderness Area, Cleveland National Forest. Small area of native grassland on break in slope, west side of trail extending south from end of Woodchuck Road. 732 Comment
  RSA206496  Saxifraga californica E. W. Lathrop 1969-5-8 7020 Riverside Los Alamos Canyon 1/2 mile E of San Mateo Canyon, Cleveland National Forest, Trabuco district. 518 Comment
  UCR169871  Saxifraga californica Dave Goodward 2004-1 s.n. Riverside San Jacinto Mtns., mouth of narrow side canyon off South Fork San Jacinto River 1159 Comment
  SEINET10634924  Schinus molle Greg Gust, Leith Nye 2005-3-11 Gust 538 Riverside Lake Elsinore City Limits. At intersection of Ellis St. & Franklin St. in an overgrown disturbed site. 400 Comment
  SBBG18233  Schismus barbatus M. A. Piehl 1963-6-1 63526 Riverside E edge of Banning Comment
  UC1546999  Schismus barbatus Leila M. Shultz, John S. Shultz 1985-4-17 8299 Riverside n of Blythe (Palo Verde Valley, at the s extension of the Big Maria Mountains); Big Maria Mountains, Palo Verde Valley 91 Comment
  UCR100171  Schismus barbatus Scott D. White 1993-3-3 1085 Riverside Perris Basin, Romoland/Winchester area 442 Comment
  SEINET10597129  Schismus barbatus Steve Boyd, Timothy S. Ross; Laurel Arnseth; Jaime Bonilla, Barbosa 1990-4-2 Boyd 4046 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Sprins Guard Sta. Chaparral and oak woodland vegetation burned by Mt. Palomar fire, 1989. 488 Comment
  CAS-BOT-BC111386  Schoenoplectus acutus var. occidentalis Louis C. Wheeler 1932-9-4 1337 Riverside Santa Ana R. at Chino Creek 182 Comment
  CAS-BOT-BC111577  Schoenoplectus americanus Ivan Murray Johnston 1917-4-4 1037 Riverside Frequent in damp sand along creek, Palm Canyon 274 Comment
  RSA554215  Schoenoplectus californicus A. C. Sanders, Chet McGaugh 1991-7-19 11149 Riverside Murrieta Hot Springs, large vernal pool on S side of Murrieta Hot Springs Road, E of Via Princesa & N of Calle del Lago. 348 Comment
  RSA366083  Schoenoplectus maritimus Joseph A. Ewan, C. Epling 1933-5-12 7609 Riverside South shore Lake Elsinore. Comment
  RSA800233  Schoenoplectus maritimus Justin M. Wood 2010-6-17 2049 Riverside Perris Basin: March ARB, roadside ditch south of Cactus Ave. and west of Heacock St. 473 Comment
  CSUSB1016  Scirpus robustus Emily E. McGregor 1972-4-15 Riverside Santa Ana River Santa Ana River bottom, off Freemont Drive. Comment
  RSA740828  Scrophularia californica Scott D. White, Justin M. Wood 2008-7-8 12387 Riverside San Jacinto Mountains: Johnson Meadow. 1439 Comment
  SEINET3078484 Image available Scrophularia californica Susan Larisch 1963-3-18 51 Riverside Growing at base of large rock about 1/2 way up large wash in the U.C.R. Botanical Garden. Comment
  JEPS86531  Scrophularia californica subsp. floribunda Roy E. Buck 1988-4-1 867 Riverside 7 air km w Lake Elsinore (town) (2.0 air km nw of confluence of Harlon Canyon and Johnson Canyon drainages, above CA Hwy 74 near top of grade); Elsinore Mts 780 Comment
  RSA249459  Scrophularia californica subsp. floribunda John F. Emmel 1973-3-3 413 Riverside South Fork of San Jacino River, west of Hemet. 793 Comment
  POM122461  Scutellaria siphocampyloides Marcus E. Jones 1926-6-20 s.n. Riverside 12 miles north of Idyllwild, San Jacinto Mountains. Comment
  UCR57228  Scutellaria tuberosa Jeri Hirshberg 1989-5-2 s.n Riverside Santa Rosa Plateau, Santa Ana Mtns., Santa Rosa Plateau, south of town of Murrieta, SW of Mesa de Burro 610 Comment
  UCR213681  Secale cereale Justin M. Wood 2009-5-11 701 Riverside San Jacinto Mountains, McMullen Flat area, 0.35 N on Valley Hi Dr., from intersection w/ Twin Pines Rd. 1201 Comment
  RSA684087  Selaginella eremophila Louis Cutter Wheeler 1933-12-2 2299 Riverside Tahquitz Canyon 244 Comment
  UC218676  Selaginella watsonii P. A. Munz 1922-6-27 5869 Riverside n slope Toro Peak Toro Peak; Santa Rosa Mts. 2529 Comment
  CAS-BOT-BC363488  Senecio californicus Raymond Lindholm 1961-3-1 s.n. Riverside Near San Bernardino. Reche Canyon Comment
  UCR34950  Senecio californicus L. B. Ziegler 1969-5-27 367 Riverside San Jacinto Mtns., Cahuilla Indian Reservation 1113 Comment
  POM10293  Senecio flaccidus var. douglasii F. M. Reed 1903-10-24 19 Riverside Temescal Valley near mouth of Cold Water Canyon Comment
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Apr 7 2011
  RSA777731  Senecio mohavensis J. Andre, Glenn L. Clifton 2011-2-22 17443 Riverside Mecca Hills; along Box Canyon Road, 10.3 miles NE of town of Mecca 219 Comment
  RSA314644  Senecio vulgaris R. F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55453 Riverside San Bernardino Mountains: side canyon on W side of Whitewater Canyon, ca. 3.3 miles N of Whitewater post office. 595 Comment
  SDSU17478  Senna artemisioides Jerry Jenkins 2001-3-30 2001 -002 Riverside Santa Margarita Ecological Reserve. Fields near station. UTM zone 6, 482100E, 3699010N. UTM transfered to GIS. Comment
  POM11977  Senna covesii E. C. Jaeger 1921-03 s.n. Riverside Martinez Canyon., [I think Martinez Cyn. should be either in the San Jacinto Mtns. region or in the western Colo Des region -- the Martinez Cyn I know of is in the Santa Rosa Mtns. -SDW 2004] Comment
  SEINET238185 Image available Sesuvium verrucosum T. B. Salvato, A. C. Sanders; Mitch Provance 2000-1 45 Riverside Coachella Valley: 50th St. ca 1 mi W of Filmore, 1.5 mi E of town of Coachella. -24 Comment
  UCD92618  Setaria parviflora F. M. Reed 1906-9-17 1186 Riverside Riverside and vicinity roadside, corner of Chicago and Mass. Aves. Comment
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Jun 15 2012
  SEINET7072852  Sidalcea malviflora A. G. Vestal 1963-5-20 s.n. Riverside Long Valley Road at Tececula and at the junction with Route 395 (115). Coordinate datum: WGS84/NAD83. (33? deg. 30' 3" North Latitude, -117? deg. 9' 3" West Longitude, Coordinate datum: NAD27.). Comment
  UCR116849  Sidalcea malviflora A. C. Sanders, Steven R. Hill 2001-5-4 24143 Riverside Santa Ana Mtns. region, W of Temecula, Santa Rosa Plateau area, top of escarpment on Rancho California Rd. at Avenida del Oro (to Sandia Creek. Dr.), E side of Rancho Calif. Rd. 488 Comment
  CAS-BOT-BC434386  Sidotheca trilobata S. G. Stokes 1933-7-1 312 Riverside Road to Idyllwild 1066 Comment
  UC8466  Silene laciniata subsp. major Geo. F. Reinhardt June, 1897 Riverside San Jacinto Mountains Comment
  SEINET3289839 Image available Silene parishii M. W. Denslow, Firoozeh Navid-Ara; Valerie Soza 2003-7-15 1443 Riverside Peninsular Ranges; San Jacinto Mountains region: Northeast side of Tahquitz Peak, on a trail to Saddle Junction. On Northwest facing slope of decomposed granite. 2637 Comment
  UC465645  Silene parishii F. M. Reed 1908-7-12 2548 Riverside near Surprise Lake; San Jacinto Mts., near <?>rizo Lake 2743 Comment
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Jul 22 2010
  UCR130852  Silybum marianum S. J. Myers, C. McGaugh 1996-5-17 s.n. Riverside Santa Ana River Valley, Corona, River Road bridge over the Santa Ana River 165 Comment
  UCR48504  Silybum marianum Steve Boyd 1986-4-22 1726 Riverside Temescal Canyon, Walker Canyon area, where Temescal Creek (=Alberhill Creek) flows between Alberhill Mountain and Gavilan Hills 427 Comment
  PASA2367  Simmondsia californica Stason 1930-4-1 Riverside Near Cottonwood Springs Comment
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Nov 12 2014
  RSA23644  Simmondsia chinensis Percy C. Everett 1939-7-7 9525 Riverside 3 mi. N of Temmecula-Aguaga Rd. on road to Hemet. 762 Comment
  SD80042  Simmondsia chinensis Nancy Ryan Zabriskie, Walter Zabriskie 1970-3-28 277 Riverside Andreas Canyon, near Palm Springs, alongside trail, 50' south of Andreas stream, opposite mouth of North Canyon 366 Comment
  SEINET6418776 Image available Simmondsia chinensis Annie M. Alexander, Louise Kellogg 1941-1 2159 Riverside EAgle Mountains, road to Black Eagle Mine 777 Comment
  UCR59769  Simmondsia chinensis Steve Boyd, T. S. Ross, L. Arnseth 1989-3-18 3002 Riverside Vail Lake Area, Temecula Creek Cyn below Vail Lake dam 457 Comment
  UC1951322  Simmondsia chinensis Robert F. Thorne 1986-1 62096 Riverside Comment
  UC857350  Sisymbrium altissimum C. B. Clokey, I. W. Clokey, B. C. Templeton 1930-4-15 4741 Riverside Gavilan Peak 600 Comment
  UCR138639  Sisymbrium irio D. L. Banks, J. Moreno 1997-2-5 1265 Riverside Agua Tibia Mtns., NW Palomar Mountains: Pechanga Indian Reservation. The headwaters of Pala Creek at the southern extremity of the Reservation, north of the Riverside/San Diego County line border, including a large area of vernally wet grassland at the extreme southwestern corner of the Reservation 409 Comment
  UCR138918  Sisymbrium irio Julie A. Greene 1993-3-13 1066 Riverside San Jacinto River Valley, San Jacinto Wildlife Area. On the berm north of the western ponds 441 Comment
  UCSB27760  Sisymbrium irio