Search Results — 2000 specimen records retrieved (1892 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC229317  Abronia villosa Mrs. Robert Campbell 1921-11-26 10 Riverside Palm Springs Comment
  CAS-BOT-BC389743  Abronia villosa M. Danielson 1963-12-23 s.n. Riverside Beginning of dirt road into Tahquitz Canyon Comment
  OBI28973  Abronia villosa David J. Keil 1976-11-28 11879 Riverside Just E of Indio along I-10 Comment
  RSA341997  Abronia villosa Robert F. Thorne, W. A. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54119 Riverside Along Whitewater River, E of bridge and levee. Comment
  UCR248478  Abronia villosa Duncan S. Bell 2012-4-5 3313 Riverside Sonoran (Colorado) Desert, Palen sand dunes on the southwest side of the Palen Mountains at the south end of Palen Valley and the northwestern part of Chuckwalla Valley; vicinity of the Desert Lily Sanctuary 160 Comment
  RSA0046826  Abronia villosa Tamara Joy Hanna 1991-5-4 15 Riverside Township of Anza, area of High Country Ranches. From Terwilliger Road (paved) east on Coyote Canyon Road (dirt) approx. 2 miles. 1219 Comment
  RSA593979  Abronia villosa var. aurita D. L. Banks, Elizabeth Hedge Banks 1996-5-2 966 Riverside NW Palomar Mountains; Agua Tibia Mountains; WSW of Dorland Mtn., in the Pechanga Indian Reservation; Along the sandy margins of Pechanga Creek, approximately 15 m E of Pala Road. 351 Comment
Read comments
May 12 2011
  RSA667026  Abronia villosa var. aurita A. C. Sanders, Mitch Provance 1999-9-26 23086 Riverside Lake Hemet, north shore at FS day use area 1323 Comment
  SEINET5585524  Abronia villosa var. aurita Duncan S. Bell 2012-1 3141 Riverside Southern section of the Mecca Hills; north side of the canal, approximately 4.75 air miles southeast of where Box Canyon Road crosses the Coachella Canal. 16 Comment
  UCR123830  Abronia villosa var. villosa Steven R. Hill, K. Kramer 2001-4-27 33489 Riverside Sonoran (Colorado) Desert, N side of Route I-10, W side of Coachella Canal, about 0.1-0.2 mi north of interstate highway, 3 mi east of Indio 9 Comment
  UCR178579  Abronia villosa var. villosa R. G. Swinney 1967-2-11 0003 Riverside San Jacinto Mtns./ Sonoran (Colorado) Desert, Snow Creek 366 Comment
  RSA653653  Abutilon theophrasti A. C. Sanders, Mitch Provance 1999-9-26 23105 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
  RSA0030723  Acamptopappus sphaerocephalus Bonnie C. Templeton, I. W. Clokey 1930-4-9 1052 Riverside North of Palm Springs. Colorado Desert. 305 Comment
  CAS-BOT-BC218714  Achnatherum coronatum Roxana S. Ferris; Ruth P. Rossbach 1938-5-20 9663 Riverside 3 miles below junction of Idylwild Road on State Highway #74 Comment
  SD237294  Achyrachaena mollis A. C. Sanders, T. B. Salvato 2011-4-1 38942 Riverside Peninsular Range: Lake Elsinore, SW of Baker St. along dirt branch road to microwave tower, near large water tank on hill. 409 Comment
  UCR226073  Achyrachaena mollis A. C. Sanders, T. B. Salvato 2011-4-1 38942 Riverside Peninsular Range, Lake Elsinore, SW of Baker St. along dirt branch road to microwave tower, near large water tank on hill 409 Comment
  NY1084567  Achyronychia cooperi N. H. Holmgren 1973-3-22 6469 Riverside Rice Valley, 7 miles south-southwest of Rice 274 Comment
  POM183975  Achyronychia cooperi P. A. Munz 1932-3-14 11999 Riverside Palm Springs. 91 Comment
  SEINET3071820  Achyronychia cooperi Marc A. Baker, Michelle Cloud-Hughes 2011-12-17 17501 Riverside West of Palen Pass quadrangle, zone 11 0663470mE 3753470mN NAD83, Palen Valley, along Palen Pass Road, 17km west of Palen Pass, 67km WNW of Blythe, 27km NNE of Desert Center 175 Comment
  SBBG56033  Acmispon argophyllus var. argophyllus B. Gustafson 1977-4-7 5586 Riverside Whitewater Cyn Rd, near start of Pacific Crest Trail 609 Comment
  RSA801954  Acmispon grandiflorus var. grandiflorus LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6156 Riverside Along road (5S24). End of Marion Ridge road, south of the community of Pine Cove. Ridge running south down to Idyllwild school of performing arts, west of Strawberry Valley. 1799 Comment
  UCR281573  Acmispon heermannii Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-6-5 617- 84 Riverside Temescal Valley, Mayhew Wash, S side of Temescal Canyon Rd. at intersection with Temescal Hills Rd. 309 Comment
  JOTR35433  Acmispon heermannii var. heermannii Harding, Mitzi, M. Wheeler, K. Callahan, C. Barrows, J. Hoines 2013-4-24 39 Riverside Joshua Tree National Park. Little San Bernardino Mtns; foothillls SW of Quail Mtn and W of Juniper Flats. (stop1) 1499 Comment
  SD45463  Acmispon rigidus Robert L. Dressler 1949-3-19 426 Riverside 23 miles northeast of Desert Center. Comment
  RSA734491  Acourtia microcephala M. Wall 2008-7-4 484 Riverside Bautista Creek, east of Hemet off Bautista Canyon Rd. ca. 7 miles east of jct. with Fairview Ave. 758 Comment
  UCR234760  Acourtia microcephala A. C. Sanders, John F. Green 2012-6-25 40311 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon near Hostettler Rd. south of I-15, narrow canyon draining from vicinity of Palomino Creek Dr. at end of Calendula St. 387 Comment
  SEINET2045687 Image available Acroptilon repens Howard Scott Gentry 1948-6 8176 Riverside Gentry Farm, ca. 3 mi NE of Murrieta. Comment
  CHSC30431  Adenophyllum porophylloides Jeffrey M. Lund 1980-4-3 51 Riverside One mile west of Corn Springs on the side of an unimproved road. 487 Comment
  UC1929910  Adenostoma fasciculatum Scott D. White 2004-4-26 10244 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Indian Creek Watershed. Lake Fulmore 7.5' Quad. Comment
  UCR158348  Adenostoma fasciculatum A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30088 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
  RSA453180  Adenostoma sparsifolium E. C. Jaeger 1923-6-6 s.n. Riverside East-slope San Jacinto Mountains 1585 Comment
  UC1334754  Adenostoma sparsifolium R. S. Woglum 1937-10-20 1185 Riverside Santa Rosa Mts. Comment
  UC1366097  Adenostoma sparsifolium K. R. Montgomery 1969-9-6 69 -20 Riverside 18 mi. s. Hemet (Wilson Valley Rd.) 1097 Comment
  POM870  Adiantum jordanii O. W. Robinson 1916-3-28 s.n. Riverside Miller's Canyon, Murrieta. Comment
  RSA741208  Agoseris heterophylla Scott D. White, Justin M. Wood 2008-5-15 11959 Riverside San Jacinto Mountains: Garner Valley, NW of Fobes Ranch Rd and NE of Hwy 74, valley bottom. 1357 Comment
  SEINET3916260  Agrostis exarata Scott D. White 2000-8-5 8107 Riverside San JACINTO MTS: Near Mountain Center. Unnamed ephemeral drainage (tributary to S Fork, San Jacinto River).; 0 1402 Comment
  POM14449  Agrostis idahoensis P. A. Munz 1922-9-6 6399 Riverside Round Valley, San Jacinto Mountains. 2744 Comment
  RSA192238  Agrostis pallens E. W. Lathrop 1960-6-7 4876 Riverside 14 miles west of Murrieta Comment
  UCR96425  Agrostis pallens Scott D. White 1996-8-1 4425 Riverside Peninsular Range; San Jacinto Mtns., Idyllwild area, Hwy 243 at Deer Springs trailhead and adjacent area 1829 Comment
  CLARK-A1528-7824  Agrostis scabra John C. Roos 1937-8-18 494 Riverside San Jacinto Mountains Comment
  JEPS13818  Alhagi maurorum F. M. Turner 1915-7-19 Riverside Mecca Comment
  UC862257  Alhagi maurorum W. T. Swingle and A. B. Stout 1922-11-15 Riverside Indio Coachella Valley (n of So. Pac. Ry.) Comment
  RSA656537  Aliciella latifolia subsp. latifolia A. C. Sanders 2000-4-25 23356 Riverside east side of the Coachella Canal between I-10 and Ave. 56 (Airport Rd.), 3 miles E of Thermal 15 Comment
  JEPS20771  Allenrolfea occidentalis Roxana S. Ferris and Rimo Bacigalupi Mar 19 1958-Mar 25 1958 13255 Riverside 8 mi. n. Blythe (on Hwy. U.S. 95) Comment
  RSA793605  Allionia incarnata Duncan S. Bell, Aaron Sedgwick 2012-9-13 4207 Riverside The Mecca Hills; approximately 5 air miles northeast of the junction of Box Canyon Road and the Coachella Canal or approximately 1.25 air miles southwest of Shavers Well. 240 Comment
  CSUSB417  Allium fimbriatum Joe Barrington 1968-5-11 680511 3 Riverside 1/4 mile off Highway 74, across from Alpine Village (town) 1280 Comment
  UCSB38670  Allium fimbriatum Cowan, Clark 1978-4-23 Riverside 17.3 mi. (27.2 km.) S and W of Hwy. 74 from jct. w/ 111 at Indian Wells; Santa Rosa Mts., San Bernardino National Forest; Whittaker transect #W-221 1180 Comment
  POM147851  Allium haematochiton J. B. Feudge 1927-4-7 1631 Riverside Beaumont. 671 Comment
Read comments
Dec 13 2016
  RSA359517  Allium haematochiton Steve Boyd 1986-3-9 1378 Riverside Temescal Canyon: Alberhill Mountain, S slope of mountain just east of claymine area. 427 Comment
  UC479033  Allium haematochiton Marcus E. Jones, A. M. 1931-3-2 28394 Riverside Corona Comment
  UCR167525  Allium haematochiton Scott D. White, Brian Leatherman, James Huelsman 2005-2-14 10779 Riverside Santa Ana Mtns, Santa Rosa Plateau area, just SE of Redonda Mesa. Corona Cala Camino at the intersection with Cerro Rd 701 Comment
  RSA574748  Allium munzii Steve Boyd 1982-4-20 s.n. Riverside Gavilan Hills region, smal remnant of the Gavilan Plateau on ridge east of Estelle Mountain, south of head of Dawson Canyon. 671 Comment
  UC1544763  Allium munzii Steve Boyd 1986-4-10 1640 Riverside De Palma Rd. 0.1 mi e Indian Truck Trail exit of I-15 (limited to small area at base of slope); Temescal Canyon 371 Comment
  JOTR00978  Allium parishii Cole, James E. 1941-5-29 822 Riverside Joshua Tree National Park. END OF STUBBY SPRINGS ROAD 1432 Comment
  RSA180313  Allium peninsulare var. peninsulare E. W. Lathrop 1965-4-30 5699 Riverside 5 miles W of Murrieta. Alt 2000ft 610 Comment
  RSA614533  Allophyllum divaricatum A. C. Sanders, Pamela J. MacKay, Tim Thomas, O. Clarke 1997-5-4 20633 Riverside San Jacinto Mountains north side along Hwy 243, 1.5 mi below Twin Pines Ranch Road (McMullen Flat), north slope of Peak 3740. Comment
  SEINET2444579  Allophyllum glutinosum A. C. Sanders, T. B. Salvato; Kelly Volansky 2006-5-22 32497 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. (Murrieta 7.5' Q.). 488 Comment
  UC908792  Allophyllum glutinosum Herbert L. Mason 1926-4-30 3131 Riverside 2 mi. s. Temecula Comment
  CAS-BOT-BC170129  Alnus rhombifolia Lewis S. Rose 1938-2-1 38003 Riverside Whitewater 213 Comment
  RSA704852  Alnus rhombifolia J. B. B. 1934-6-18 535 Riverside Snow Creek; base of San Jacinto. Comment
Read comments
Feb 16 2013
  UCR199725  Amaranthus albus Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10682 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Indian Creek and adjacent uplands, from confluence with San Jacinto River to c. 2 miles upstream 610 Comment
  UCD97079  Amaranthus blitum subsp. emarginatus A. C. Sanders 2001-11-25 24887 Riverside Moreno Valley, Hope Depot at Pigeon Pass Rd. on north side of Hwy 60. Comment
  UCR17540  Amaranthus californicus O. F. Clarke 1978-9-23 s.n. Riverside San Jacinto Mtns, Valley Hi County Park 1183 Comment
  UCR241959  Amaranthus deflexus A. C. Sanders, Jose Aguiar 2012-12-19 40531 Riverside Sonoran (Colorado) Desert, Coachella Valley, NE of Mecca above intersection of Ave. 62 and Johnson St. near Coachella Canal -8 Comment
  RSA289853  Ambrosia acanthicarpa B. A. Prigge 1980-9-16 4049 Riverside Indio. Coachella Valley Stormwater Channel. 0 Comment
  CAS-BOT-BC22577  Ambrosia dumosa Joseph Andorfer Ewan 1932-4-8 7029 Riverside Seven Palms near Garnet, Colorado Desert Comment
  JEPS40973  Ambrosia dumosa W. L. Jepson 1928-4-25 12588 Riverside The driest and most arid hills Cottonwood Spring; Colorado Desert, Joshua Tree National Monument, Eagle Mounta 731 Comment
  LA202920  Ambrosia dumosa A. M. Johnson; 1933-4-28 4228 Riverside Indian Wells highway along new mountain highway to Hemet, 2 to 3 mi. up from Palm Springs Comment
  UCR178508  Ambrosia dumosa R. G. Swinney 1967-5-26 149 Riverside Sonoran (Colorado) Desert/ San Jacinto Mtns., Snow Creek 381 Comment
  SEINET10849245  Ambrosia dumosa David B. Dunn, Howard Brown; Elizabeth M. McClintock 1947-3-15 Dunn 2895 Riverside Pushawalla Canyon Biota. Indio Hills. In dry wash. Comment
  CAS-BOT-BC30794  Ambrosia ilicifolia Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center Comment
  RSA450767  Ambrosia ilicifolia J. C. Roos 1958-3-15 s.n. Riverside 2.5 mi. SE of Desert Center, Chuckwalla Mts. Comment
  UCR41461  Ambrosia ilicifolia A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6131 Riverside Sonoran (Colorado) Desert, N foot of the Chuckwalla Mountains, 2.75 mi (airline) SE of Desert Center 367 Comment
  LA203739  Ambrosia salsola Carl Epling; March 1927 sn Riverside Palm Springs Comment
  RSA305625  Amelanchier pallida C. W. Tilforth, B. Busenberg 1979-5-18 1802 Riverside U.S.C. Isomata Campus, along Strawberry Creek, Idyllwild. Comment
  UC217996 Image available Amelanchier utahensis P. A. Munz and I. M. Johnston 1922-5-20 5488 Riverside Kenworthy; San Jacinto Mts. 1417 Comment
Read comments
Mar 25 2011
  CAS-BOT-BC180626  Amorpha californica var. californica Steve Boyd; Tim Ross 1992-5-15 7403 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, Major lateral drainage north of Bear Canyon, vicinity of the junction of Tenaja and Morgan Trails, west of Round Potrero 670 Comment
  UC718408  Amorpha californica var. californica Carl B. Wolf 1933-8-24 5380 Riverside 1/2 mi below summit of Bedford Motorway; E. Slope Santa Ana Mts. 975 Comment
  UCR19436  Amorpha fruticosa C. S. Papp 1963-6-29 311 Riverside Riverside, Santa Ana River bed Comment
  UCSB33365  Amsinckia intermedia Marks, R. 1978-3-16 Riverside At top of hill 3/4 mi. W. of orange grove at 3000 McAllister Rd. in Riverside 457 Comment
  UCR228852  Amsinckia retrorsa A. C. Sanders, T. B. Salvato 2011-3-28 38825 Riverside Peninsular Range; Perris-Aguanga Basin Region, Menifee Valley, powerline corridor along McLaughlin Rd. west of Murrieta Rd., north of Sun City 439 Comment
  RSA499897  Amsinckia tessellata George R. Johnstone 1934-3-27 s.n. Riverside Near Wildomar. Inland route to Temecula. Comment
  JOTR35299  Amsonia tomentosa Andre, Jim 2012-4-11 20796 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
  UCSB54190  Amsonia tomentosa McKinley, Gale 1985-3-26 Riverside 100 yards east of site #9 in Ryan campground in Joshua Tree National Monument 1280 Comment
  RSA234062  Anagallis minima Robert F. Thorne, E. Lathrop 1969-5-19 37969 Riverside Santa Rosa Plateau: Rancho California, Mesa de Colorado. 625 Comment
  RSA781620  Androstephium breviflorum Duncan S. Bell 2009-3-8 88 Riverside Arica Mountains: west side of mountain range in main western drainage approximately 2.5 air miles west of Priest Well or approximately 7 air miles southwest of the ghost town of Rice. 420 Comment
  SDSU13503  Anemopsis californica W. Miller with C. Mosse 1972-7-20 Riverside West of R.C. Weather Station. Comment
  RSA278295  Angelica tomentosa John F. Emmel 1976-6-23 550 Riverside Bay Tree Flat Campground, NW of Lake Fulmor, San Jacinto Mountains. 1601 Comment
  UCR201492  Anisocoma acaulis Scott D. White, Justin M. Wood 2008-5-15 11964 Riverside San Jacinto Mountains, Garner Valley, northwest of Fobes Ranch Road and northeast of Hwy 74, valley bottom 1357 Comment
  POM9753  Antennaria rosea E. C. Jaeger 1921-6-20 275 Riverside Long Valley, San Jacinto Mts. Comment
Read comments
Oct 6 2009
  CLARK-A1528-148  Anthemis cotula Fred B. Essig 1967-6-22 Riverside Riverside Comment
  SD262180  Anthemis cotula T. B. Salvato, Gregg Miller 2005-6-3 1371 Riverside Peninsular Range; Perris - Aguanga Basin Region: San Jacinto River c. 2.5 mi SSW of Perris, 1.5 mi downstream of Goetz Road where the river leaves the Perris Plain and enters the hill area above Railroad Canyon. 427 Comment
  UCR207815  Anthriscus caucalis O. F. Clarke 2004-4-14 s.n. Riverside San Bernardino Valley Region, Riverside, west side of Santa Ana River opposite the south end of Mt. Rubidoux, SE of Flabob Airport, south of bend in Crestmore Rd. and 2 mi. south of Mission Blvd., east of Co. Parks Hqtrs. 229 Comment
  CLARK-A1045-341  Antirrhinum coulterianum George K. Helmkamp 1978-5-2 Riverside Bautista Canyon burn; Hemet 15'Q Comment
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Jun 22 2013
  CDA36138  Antirrhinum cyathiferum CDFA Staff 2011-10-4 s.n. Riverside Grown from seed collected in Deep Canyon, Riverside County. Sacramento, CDFA greenhouse on Meadowview Road. 0 Comment
  RSA221092  Antirrhinum kelloggii E. W. Lathrop 1966-3-23 6080 Riverside Skyline Drive, 4 mi. W of Corona, Tine Mine Canyon 305 Comment
  SDSU13330  Antirrhinum kelloggii Tom Duffy, Tarja Sagar 2000-4-29 Riverside Two hundred meters NE of Stanta Margrita Ecological Reserve North End. 320 Comment
  RSA191418  Antirrhinum nuttallianum subsp. nuttallianum E. W. Lathrop, Robert F. Thorne 1967-9-26 6609 Riverside Tenaja Guard Station, 10 miles NW of Murrieta. Comment
  RSA515311  Antirrhinum nuttallianum subsp. nuttallianum Jeri Hirshberg 1989-4-11 s.n. Riverside Santa Rosa Plateau, S of town of Murrieta, NE of Mesa de Burro, creek below Guava-De Luz Road, approximately 1.5 miles SW of intersection with Hayes Avenue. 610 Comment
  RSA577518  Aphanes occidentalis D. L. Banks, Steve D. Boyd 1995-2-16 0046 A Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., on the Dripping Springs Alcove, E of the Woodchuck Trail. 720 Comment
  UCR133670  Apiastrum angustifolium Chet McGaugh 2003-5-10 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  UCR48480  Apiastrum angustifolium Steve Boyd 1986-4-2 1585 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  POM97123  Apiastrum angustifolium P. A. Munz 1925-5-20 9819 Riverside 2 miles west of Dripping Springs. 427 Comment
  SDSU13348  Apocynum cannabinum Joseph Verfaillie, Shasta Gaughen 2000-4-29 48 Riverside Santa Margarita Eclogical Reserve, (SDSU) The north side of the Santa Margarita river about 1/4 mile west of the pipe line crossing. About 5-15 feet from the river. 235 Comment
  SDSU9933  Aquilegia formosa Garrison 1962-7-29 Riverside 0.25 miles from center of Idyllwild village in dense growth along bank of Strawberry Creek. 1615 Comment
  UC488838  Aquilegia formosa C. V. Meyer June 1927 181 Riverside San Jacinto Mtns Comment
  UCR90401  Arabis sparsiflora var. californica Steve Boyd, D. L. Banks 1995-3-30 8405 Riverside Agua Tibia Mountains, Palomar Range, Agua Tibia Wilderness Area; N flank of Agua Tibia Mtn, at W edge of the Dripping Springs alcove in tributary of Kolb Creek just east of old Woodchuck Truck Trail. 701 Comment
  POM354262  Arceuthobium campylopodum Albert J. Perkins 1916-9-4 s.n. Riverside Idyllwild. Comment
Read comments
Mar 21 2011
  POM48870  Arceuthobium campylopodum Philip A. Munz, I. M. Johnston 1924-6-26 8705 Riverside Near Dark Canyon. 1524 Comment
  UC1618107  Arceuthobium campylopodum Donald G. Nelson 1936-5-24 422 Riverside Hurkey Creek Camp Comment
  RSA629472  Arctostaphylos glandulosa Jon E. Keeley 1992-6-16 16830 Riverside Idyllwild, Saunders Meadow Road, east of Highway 243. 1610 Comment
  UCR273501  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42601 Riverside Peninsular Range; Santa Ana Mountains, south side of South Main Divide Road, SE of Morgan Trailhead into San Mateo Wilderness, 0.17 km NE (46 deg. ) of Lion Spring 872 Comment
  RSA629365  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-6-16 16820 Riverside Hwy 234, 3 km N of Hwy 74, San Jacinto Mtns. 1520 Comment
  RSA629366  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-6-16 16821 Riverside Hwy 234, 3 km N of Hwy 74, San Jacinto Mtns. 1520 Comment
  RSA629468  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-6-16 16840 Riverside Hwy 243, 38 km N of Idyllwild. 1485 Comment
  CAS-BOT-BC24671  Arctostaphylos glauca Steve Boyd 1986-4-19 1704 Riverside Temescal Canyon: e. side of Indian Wash between I-15 and Temescal Canyon Rd. Comment
  RSA631735  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19283 Riverside Highway 79, 2 km west of Radec. 550 Comment
  RSA631736  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19284 Riverside Highway 79, 2 km west of Radec. 550 Comment
  RSA631755  Arctostaphylos glauca Jon E. Keeley 1992-7-16 16508 Riverside Barranca Road, west of De Portola Road, east side of Black Mountain, east of Lake Skinner. 725 Comment
  RSA631756  Arctostaphylos glauca Jon E. Keeley 1992-7-16 16542 Riverside Red Mountain Road, 8.7 km east of R3. 1000 Comment
  RSA631797  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19567 Riverside Highway 79, 4 km west of Aguanga. 660 Comment
  UC63819  Arctostaphylos glauca H. M. Hall May 1897 518 Riverside at lower altitudes and on Juniper Hill San Jacinto Mountains Comment
  UCR63999  Arctostaphylos glauca Richard Minnich 1990-8-23 s.n. Riverside Lakeview Mtns., off Juniper Springs Road near Juniper Springs 640 Comment
  RSA0002607  Arctostaphylos glauca var. eremicola W. L. Jepson 1914-5-18 6004 Riverside Colorado Desert, Pinyon Well Mountains. Comment
  RSA633720  Arctostaphylos parryana subsp. desertica Jon E. Keeley 1992-7-16 16632 Riverside Road to Santa Rosa Mountain (7S02), 2.5 km south of Highway 74. 1640 Comment
  RSA635643  Arctostaphylos pringlei subsp. drupacea Jon E. Keeley 1992-7-17 16743 Riverside Morris Ranch Rd. (6S06), 6.3 km east of Hwy 74, western base of Pyramid Pk., San Jacinto Mountains. 1680 Comment
  UCSB4720  Arctostaphylos pringlei subsp. drupacea Ralph, F. 1959-5-16 Riverside Near Jolley Springs along Devil's Slide Trail in Mt. San Jacinto Wilderness Area, Mt. San Jacinto 2133 Comment
  CAS-BOT-BC44813  Arctostaphylos pungens Winfield 1975-5-4 2423 Riverside James - San Jacinto Reserve 1615 Comment
  CAS-BOT-BC46258  Arctostaphylos rainbowensis Steve Boyd 1994-10-14 8380 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest. Fisherman's Camp Trail 462 Comment
  RSA636007  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19554 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636011  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19559 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636014  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18803 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  SD236273  Arctostaphylos rainbowensis Annie L. Bustamante 2007-9-6 102 Riverside Peninsular Range - Santa Ana Mountains: Santa Margarita Ecological Reserve; c. 0.7 km west of Highway 15, c. 1 km from Santa Margarita River. Along trail. 602 Comment
  UCR189582  Arctostaphylos rainbowensis Theresa Johnson 2007-4-19 322 Riverside Peninsular Range- Santa Ana Mountains, San Mateo Canyon. Off Tenaja Truck Trail, c. 1.5 km from Fisherman's Camp 447 Comment
  UC219563  Arenaria macradenia var. macradenia P. A. Munz 1922-6-23 5789 Riverside 2 mi below Kenworthy; San Jacinto Mts.,Hemet Valley 1371 Comment
Read comments
Mar 25 2011
  UCR167975  Argemone munita T. B. Salvato, John F. Green 2004-5-27 655 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
  POM410  Argemone munita subsp. munita L. T. Street, M. Durant 1918-5-12 s.n. Riverside San Jacinto Comment
  CAS-BOT-BC207122  Argythamnia lanceolata S. B. Parish 1896-4-4 4141 Riverside Palm Springs, (Agua Caliente) desert base of San Jacinto Mt. 213 Comment
  CAS-BOT-BC207126  Argythamnia lanceolata John Thomas Howell Jan. 29 1 (rest of year torn off sheet) 3298 Riverside Painted Canyon, Colorado Desert Comment
  CAS-BOT-BC202501  Argythamnia serrata John Ingram 1954-4-26 202 Riverside One mile above Whitewater along Whitewater Canyon Road 454 Comment
  CAS-BOT-BC202504  Argythamnia serrata John Thomas Howell 1928-1-30 3308 Riverside 2 miles e. of Shaver's Well, Colorado Desert Comment
  RSA342535  Argythamnia serrata R. F. Thorne, Dick Tilforth 1980-4-16 54018 Riverside San Bernardino Mountains: At mouth of Whitewater Canyon, ca. 1/4 mi. W of Whitewater P.O. and 1/2 mi. W of Whitewater River. 415 Comment
  RSA85441  Aristida adscensionis var. modesta J. C. Roos 1952-4-9 5508 Riverside SW face Mountain Rubidoux. 366 Comment
  SEINET3004951  Aristida californica G. Rink 2011-3-9 10375 Riverside Palo Verde Solar Site, southwest of Blythe 91 Comment
  CLARK-A1528-4469  Aristida fendleriana John C. Roos 1938-8-7 583 Riverside San Jacinto Mountains Comment
  RSA781413  Aristida purpurea Duncan S. Bell 2011-10-22 2993 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
  UCD56512  Aristida purpurea J. C. Roos 1965-8-15 s.n. Riverside San Jacinto Valley, Gilman Hot Springs. Comment
  RSA740945  Aristida purpurea var. fendleriana Scott D. White, Justin M. Wood 2008-6-17 12189 Riverside Morris Ranch Rd. - open area W of Goff Flat. 1616 Comment
  POM46956  Aristida purpurea var. nealleyi Mary F. Spencer 1918-3-27 825 Riverside Palm Springs 137 Comment
  CAS-BOT-BC137512  Aristida purpurea var. purpurea J. C. Roos 1965-8-15 s.n. Riverside San Jacinto Valley. Gilman Hot Springs. Comment
  HSC101775  Aristida purpurea var. purpurea J. P. Smith, J. O. Sawyer, R. J. Cole 2011-6-9 13192 Riverside Along State Route 74 1227 Comment
  UCR215598  Aristida purpurea var. wrightii Tasha La Doux, Jim Andre 2008-9-16 345 Riverside Mojave Desert, Joshua Tree National Park, southeast end of Splitrock Picnic Area 1290 Comment
  RSA613711  Artemisia annua G. R. Ballmer 1997-11-22 s.n. Riverside Riverside. Volunteer in yard at 8538 Hickory Lane. Comment
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Jul 14 2012
  CAS-BOT-BC90191  Artemisia californica Edmund C. Jaeger 1922-4-3 s.n. Riverside 14 miles East and south of Palm Springs Comment
  RSA342536  Artemisia californica R. F. Thorne, C. W. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54021 Riverside San Bernardino Mountains: 1/4 mile W of Whitewater P. O. and 1/2 mile W of Whitewater River 415 Comment
  SBBG105095  Artemisia dracunculus S. Boyd with T. Ross, T. Columbus 1993-10-23 8193 Riverside upper Morrell Cyn along Morgan Trail (Rd 5W02) 877 Comment
  CAS-BOT-BC93733  Artemisia ludoviciana subsp. albula Louis C. Wheeler 1933-12-2 2296 Riverside Mouth of Tahquitz Canyon, San Jacinto Mts. 152 Comment
  CAS-BOT-BC93651  Artemisia ludoviciana subsp. incompta Louis C. Wheeler 1931-10-4 171 Riverside Strawberry Valley, San Jacinto Mts. 1584 Comment
  CAS-BOT-BC93699  Artemisia ludoviciana subsp. incompta Grant 1901-8-1 4441 Riverside Strawberry Valley Comment
  UC111252  Asclepias californica H. M. Hall Apr. 1897 Riverside Temecula Ck. Nigger Jim Canyon Comment
  POM401680H  Asclepias eriocarpa Robert Gustafson, Gary D. Wallace 1983-6-23 2710 Riverside Santa Ana Mountains, Clinton Keith Road near junction with Tenaja Road. Comment
  UCR133948  Asclepias eriocarpa John F. Green 2003-8-15 s.n. Riverside Santa Ana Mtns., Santa Rosa Plateau, La Cresta area, south side of Wendy Lane off Calle De Suenos, south of Avenida La Cresta and Avenida Castilla 701 Comment
  SDSU2736  Asclepias erosa D. F. Howe 1963-5-15 3482 Riverside 18 miles east of Desert Center on U.S. 60 or 70. 152 Comment
  SD181724  Asclepias fascicularis Scott D. White 2000-8-5 8098 Riverside San Jacinto Mountains: Near Mountain Center, unnamed ephemeral drainage. 1402 Comment
  SEINET10779846  Asclepias subulata Marcus E. Jones 1906-4-30 Jones s.n. 1906 Riverside Indio Comment
  RSA698472  Aspidotis californica Jeanne Paxton 1934-4-16 s.n. Riverside Hagador Canyon Comment
  POM10306  Aster hesperius Charlotte M. Wilder 1904-09 391 Riverside W Riverside Comment
  CLARK-A1528-5445  Aster menziesii John C. Roos 1951-10-19 Riverside San Timoteo Canyon dry, semi-alkaline road side; with Artemisia douglasiana and Distichlis stricta; ; El Casco 7.5' 609 Comment
  POM4751  Aster subulatus var. ligulatus Geo. R. Hall 1905-9-3 s.n. Riverside Riverside Comment
  RSA3978  Astragalus aridus C. B. Wolf 1932-4-29 3116 Riverside Eastern Colorado Desert, 3 miles S of Rice on the Blythe road. 213 Comment
  UC218095  Astragalus aridus P. A. Munz, D. Keck 1922-4-8 4739 Riverside Mecca , Mecca (Colorado Desert) -30 Comment
  UC862496  Astragalus aridus I. W. Clokey, B. C. Templeton 1930-4-9 4710 Riverside n Palm Springs (Colorado Desert); , n of Palm Springs 170 Comment
  JOTR30999  Astragalus coccineus La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1131 Riverside Joshua Tree National Park. Stop 3: Hexie Mountains, steep loose slopes above Blue Cut Gorge Comment
  HSC85407  Astragalus didymocarpus var. didymocarpus Steve Boyd 1986-4-2 1620 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  JOTR30120  Astragalus didymocarpus var. dispermus La Doux, Tasha, Bill Truesdell, Erin Babich 2008-3-10 1686 Riverside Joshua Tree National Park. Stop # 2 = Pinto Basin near Sandhill 538 Comment
  RSA605934  Astragalus douglasii var. parishii R. S. Woglum 1937-5-22 576 Riverside Santa Rosa Mountains. Comment
  UCR35360  Astragalus filipes L. B. Ziegler 1972-5-17 456 Riverside San Jacinto Mtns, Hemet (Garner) Valley. 1418 Comment
  RSA500098  Astragalus gambelianus Steve Boyd 1989-4-2 3212 Riverside Vail Lake Area, W end of bench on S flank of Oak Mt. 518 Comment
  CAS-BOT-BC186905  Astragalus insularis var. harwoodii A. C. Sanders 2010-3-15 37392 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
  UCR86648  Astragalus lentiginosus var. coachellae A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16257 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
  RSA498234  Astragalus lentiginosus var. variabilis Robert L. Dressler 1949-3-19 417 Riverside 5 miles NE of Desert Center. Comment
  SD135217  Astragalus leucolobus Craig Reiser, Dylan Hannon 1993-5-30 Riverside N side of Santa Rosa Peak Comment
  UC862962  Astragalus nuttallianus var. imperfectus C. L. Hitchcock 1940-4-3 5935 Riverside along 29 Palms Road 1 1/2 mi ne Cottonwood Spring (Joshua Tree National Monument); , ne of Cottonwood Spring Comment
  RSA60419  Astragalus pomonensis Frank W. Gould 1943-4-18 2155 Riverside 3 miles W of Beaumont near junction. Comment
  RSA619546  Astragalus pomonensis D. L. Banks 1997-5-5 1995 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pechanga Creek., East of where the road crosses to the southern bank of the south fork of Pechanga Creek. 427 Comment
  RSA651408  Astragalus pomonensis Marion P. Harthill 1976-5-6 s.n. Riverside Rancho California. 609 Comment
  UC1094504  Astragalus pomonensis Peter H. Raven, Sidney R. Snow 1956-6-30 9543 Riverside along road 1.7 mi w Dripping Springs Guard Station (on road to Temecula); w of Dripping Springs, on road to Temecula Comment
  CAS-BOT-BC193161  Astragalus sabulonum Aven Nelson; Ruth Nelson 1939-3-29 3307 Riverside About 8 miles southeast of Mecca, on hiway to Hidden Springs Comment
  CAS-BOT-BC193164  Astragalus sabulonum S. B. Parish 1913-2-7 8450 Riverside Mecca, Salton Sink 60 Comment
  CAS-BOT-BC98816  Atrichoseris platyphylla Ynez Whilton Winblad 1937-2-16 s.n. Riverside Box Canyon Comment
  RSA124444  Atrichoseris platyphylla Percy C. Everett, E. K. Balls 1958-4-29 23028 Riverside 10.5 miles W of New Cyama. 10.8 miles NE and N from Desert Center along road to Rice and Vidal jct 274 Comment
  POM202637  Atriplex canescens var. laciniata W. M. Ingram 1934-10 8 Riverside Salton. -61 Comment
  POM182511  Atriplex canescens var. linearis J. B. Feudge 1930-9-25 2063 Riverside Blythe Comment
  UCR66971  Atriplex coronata var. notatior D. E. Bramlet 1990-6-13 2034 Riverside Perris-Aguanga Basin region, c. 600 m SE of the San Jacinto Wildlife area, in dry duck ponds 2 km east of Davis Road. Population found beside a dirt road c. 100 m NE of an existing dog kennel. 473 Comment
  UCR70522  Atriplex coronata var. notatior D. E. Bramlet 1991-5-8 2131 Riverside San Jacinto area, 5.8 km west of Hemet and c. 330 m SW of intersection of Warren Road and Florida Ave. Plants c. 8 m west of Warren Road, across from Auto Blvd. 500 Comment
  RSA777418  Atriplex hymenelytra Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-22 781 Riverside Mecca Hills, just south of Shaver's Well 305 Comment
  UCR122573  Atriplex lentiformis George K. Helmkamp 2000-8-29 5983 Riverside Colorado Desert., South of Mecca, where Lincoln St. crosses the Whitewater River, about 0.5 mile from the Salton Sea -67 Comment
  UCR132656  Atriplex parishii D. E. Bramlet 1993-7-9 2360 A Riverside San Jacinto Valley, 6.9 km southwest of Hemet, at the end of California Ave and 0.85 km north of Stetson, 150-500 m east of California and 335 m west of the MWD canal 457 Comment
  RSA478375  Atriplex polycarpa Allen 1920-10 s.n. Riverside Palm Springs. Comment
  RSA653203  Atriplex prostrata Mitch Provance, Steve D. Boyd 1999-9-14 1781 Riverside Riverside: Riverbottom along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River at the Mission Bridge, along bike path, vicinity of old Boy Scout camp. 238 Comment
  UCR114547  Atriplex serenana A. C. Sanders, K. C. Rose 1999-6-18 22815 Riverside Skinner/Domenigoni area, French Valley, E side of Washington Ave. near Rawson Rd. 451 Comment
  UCR229495  Atriplex serenana Jeremiah George 2011-8-3 s.n. Riverside Peninsular Range; Elsinore Trough, Lake Elsinore, north end of Pasadena Ave., SE of Hwy 74/Riverside Dr. 386 Comment
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Sep 4 2018
  UCR199793  Atriplex serenana var. serenana Scott D. White, Justin M. Wood 2008-6-13 12105 Riverside Beaumont Badlands, San Timoteo Canyon, near El Casco Lake (private pond) east of the road 610 Comment
  UCR267435  Atriplex serenana var. serenana D. E. Bramlet 2005-7-27 3907 Riverside Perris-Aguanga Basin Region; San Jacinto Valley, west of Hemet, canal alignment, north of Devonshire Ave., west of Warren Rd. 460 Comment
  RSA342555  Avena barbata R. F. Thorne, C. W. Tilforth 1980-5-28 54211 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  UCR120922  Avena barbata A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-9 24922 Riverside The Badlands, hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 671 Comment
  VVC547  Avena fatua A. C. Sanders, J. Mac 1997-5-4 20649 Riverside San Jacinto Mountains, N side along Hwy 243, 1.5 mi. below Twin Pines Ranch Road (McMullen Flat), N slope of peak 3740 1067 Comment
  RSA220386  Baccharis emoryi C. W. Tilforth, John Dourley 1970-10-16 315 Riverside 1 mile W of Lake Mathews along Cajlco road Comment
  RSA486458  Baccharis emoryi Richard Noyes 1988-10-30 758 Riverside Harford Springs County Park vicinity. East of Park boundry and bordering Gavilan Mine Road. 610 Comment
  RSA0014780  Baccharis glutinosa Ivan Johnston 1917-4-4 s.n. Riverside Palm Canyon. 304 Comment
  CAS-BOT-BC106742  Baccharis salicifolia Aven Nelson 1930-3-1 11169 a Riverside Near water course, Palm Springs Comment
  CAS-BOT-BC106746  Baccharis salicifolia S. B. Parish; W. F. Parish 1880-11-1 726 Riverside Bannings Comment
  POM10241  Baccharis salicifolia E. L. Koethen 1897-1 30 Riverside Riverside Comment
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Nov 21 2015
  POM15077  Baccharis salicifolia Mary F. Spencer 1922-4-3 649 Riverside Tahquitz Canyon, Palm Springs 183 Comment
  SEINET10616771  Baccharis salicifolia Frederick M. Reed 1934-1-6 Reed 8686 Riverside Shrub growing on waste ground. 244 Comment
  SBBG63307  Baccharis sarothroides R. H. Nordhoff 1940-11-10 610 Riverside ca. 20 mi below Banning Comment
  JOTR29285  Baccharis sergiloides La Doux, Tasha 2003-9-4 1047 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
  LA202997  Baccharis sergiloides Louis Wheeler; 1933-12-1 2292 Riverside San Jacinto Mountains, mouth of Tahquitz Canyon 152 Comment
  POM14037  Baccharis sergiloides Philip A. Munz, D. D. Keck 1922-4-14 5011 Riverside near Whitewater Ranch 274 Comment
  RSA178645  Baccharis sergiloides C. B. Wolf 1932-10-12 4297 Riverside Above Pinyon Well, Little San Bernardino Mts. 1220 Comment
  UC87133  Baccharis sergiloides S. B. and W. F. Parish 1880-1-1 2911 Riverside Whitewater Desert Comment
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Jan 14 2010
  JOTR32197  Bahiopsis parishii Herskovits, Tasya, M. Harding 2011-5-20 s.n. Riverside Joshua Tree National Park. Little San Bernardino Mountains; Ryan Mountain; Rocky slopes bordering Ryan Mountain Trail (Stop 1) 1428 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
  UCD129491  Bahiopsis parishii L. S. Rose 1935-12-23 s.n. Riverside San Jacinto Mountains, above Deep Canyon, 22 miles south of Cathedral City, Colorado Desert. 1066 Comment
  CAS-BOT-BC99960  Baileya pauciradiata L. R. Abrams 1926-3-26 11087 Riverside Indian Wells to Indio Comment
  JOTR16563  Baileya pauciradiata Dengler, A. 1966-3-31 46 Riverside Joshua Tree National Park. OLD DALE 609 Comment
  JOTR35998  Baileya pleniradiata Harding, Mitzi, Mark Wheeler 2012-9-4 209 Riverside Joshua Tree National Park. Clark's Pass; low area of mud flats surrounded by fine sand hills, just south of Highway 62 (stop 5) 538 Comment
  JOTR31821  Bebbia juncea var. aspera La Doux, Tasha, Bill Truesdell 2007-11-9 2524 Riverside Joshua Tree National Park. Eagle Mountains along south boundary of park; small side canyon to east of larger wash running parallel to and east of Lost Palms Canyon (Stop 6) 655 Comment
  JOTR35068  Bebbia juncea var. aspera La Doux, Tasha, M. Harding and M. Stewart 2010-3-24 3520 Riverside Joshua Tree National Park. Southern end of Coxcomb Mountains with exposed metasedimentary rocky slopes; above narrow side canyon Comment
  UC68957  Bebbia juncea var. aspera H. M. Hall 1905-4-1 5841 Riverside near Salton; Colorado Desert -45 Comment
  UC1563036  Berberis nevinii Steve Boyd, Tim Ross, and Laurel Arnseth 1989-3-18 3001 Riverside below Vail Lake dam Temecula Creek Canyon; Vail Lake 457 Comment
  UCR95360  Berberis nevinii D. L. Banks, Rashmi Pant 1996-6-13 1020 Riverside NW Palomar Mtns, Agua Tibia Mtns; Foothills S oh Hwy 9; east of Dripping Springs Campground. Approx. 2.1 km east of Dripping Springs Guard Station, south of the jct between Vail Lake Marina Road and Hwy 79, just south of Cleveland National Forest Boundary Comment
  CAS-BOT-BC207046  Bernardia incana Lester Rowntree 1937-11-5 s.n. Riverside Dos Palmas, Santa Rosa Mts. Comment
  JOTR32874  Bernardia incana La Doux, Tasha, E. Babich 2008-3-5 3017 Riverside Joshua Tree National Park. NW Eagle Mountains, approx. 3mi NE of Cottonwood Visitor Center; open rocky bajada/pediment 1085 Comment
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Jan 19 2014
  RSA600231  Bernardia incana L. C. Wheeler 1960-5-9 7691 Riverside Near Nightingale, Palms to Pines Highway. Comment
  UCR122747  Bernardia myricifolia George K. Helmkamp, E. A. Helmkamp 1998-4-24 3386 Riverside Santa Rosa Mountains, Palms-to-Pines Hwy (Calif. Hwy 74), 1 mi north of Carrizo Rd near Black Hill 1006 Comment
  UC30574  Bidens laevis E. L. Koethen 1897-10-16 Riverside Riverside Comment
  UCR16047  Bloomeria crocea var. crocea K. Stolte 1978-5-12 s.n. Riverside 1 mi south of the junction of Hwy 60 and Central Ave., c. 200 m east of Central Ave. in Riverside Comment
  CAS-BOT-BC16107  Boechera californica Philip Alexander Munz 1937-5-30 15085 Riverside Northwest slope of Santa Rosa Mountains. 2133 Comment
  RSA477444  Boechera californica Robert Gustafson 1985-5-20 3118 Riverside San Jacinto Mtns., R-1, between Lake Fulmar and Allandale Comment
  CAS-BOT-BC16261  Boechera glaucovalvula Annie M. Alexander; Louise Kellogg 1941-4-29 2103 Riverside Joshua Tree National Monument. 13 miles southwest of 29 Palms. 1371 Comment
  JOTR30986  Boechera xylopoda La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1964 Riverside Joshua Tree National Park. (Stop 2) Hexie Mountains, east end of Blue Cut Gorge, toe slope with bouldery wash Comment
  SBBG93064  Boerhavia coccinea A. C. Sanders 1989-9-19 9510 Riverside 1.75 km (airline) S of Tabaseca Tank, along the wash above "Tabaseca Target", Chocolate Mtns Aerial Gunnery Range 680 Comment
  UCD98029  Boerhavia coccinea T. C. Fuller 1968-7-17 17388 Riverside Behind post office, 288 E. Main St., San Jacinto. Comment
  UCR167837  Boerhavia coccinea T. B. Salvato, Melissa Clemons 2005-6-23 1310 Riverside Peninsular Range; Temescal Valley, 3 miles NW of Alberhill, Temescal Canyon Road at Corona [Lee] Lake 366 Comment
  UCR19108  Boerhavia coccinea John C. Roos 1948-5-15 3858 Riverside Sonoran (Colorado) Desert, S foot of the Eagle Mtns, mouth of Lost Palms Wash Comment
  UCR17642  Boerhavia erecta var. intermedia Hap Ritter, Paul Mack 1976-10-20 s.n. Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, sand dunes southeast of Hopkins Well and west of Wiley's Well Road 152 Comment
  UCR104582  Boerhavia intermedia T. L. Ackerman 1982-10-13 82 438 Riverside Western Colorado Desert, Boyd Deep Canyon Center near road and buildings 274 Comment
  UCR57890  Boerhavia intermedia J. M. Stewart 1989-9-17 603 Riverside Western Colorado Desert, Coachella Valley, Pushawalla Canyon, Indio Hills. Comment
  JOTR30815  Boerhavia triquetra La Doux, Tasha, Jim Andre 2008-9-16 336 Riverside Joshua Tree National Park. along Bell Mountain Rd. atop Bell Mountain, approximately 0.3 miles north of radio tower. Queen Mountain USGS 7.5 min quad Near 34 00.35' N 116 00.017' W 1358 Comment
  RSA0106750  Boerhavia wrightii Duncan S. Bell 2011-9-30 2937 B 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
  RSA793568  Boerhavia wrightii Duncan S. Bell 2012-9-13 4190 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
  UCSB56348  Bolboschoenus maritimus Thorne, Robert; Munz, Philip; Lathrop, Earl 1968-5-8 Riverside Lake Elsinore: at SE end of Lake Elsinore, ca. 1 mi. S of Elsinore Comment
  UCR275582  Bolboschoenus maritimus subsp. paludosus T. B. Salvato 2005-6-13 605- 13 Riverside Peninsular Range; Temescal Valley, c. 1.5 mi N of Lake Elsinore at Nichols Road, between the intersection of Pierce and Baker Streets and Alberhill Creek, S of Hwy I-15 390 Comment
  UCR89551  Bothriochloa barbinodis A. C. Sanders, O. F. Clarke, P. J. MacKay, S. D. White, C. L. Sanders 1994-11-27 15871 Riverside San Jacinto Mtns/Colorado Desert, Palm Canyon, from Hermit's Bench upstream to just beyond the confluence with East Fork 300 Comment
  UCR100325  Bouteloua barbata var. barbata George K. Helmkamp 1997-11-1 2512 Riverside Sonoran (Colorado) Desert, Bermuda Dunes, 41st St and Sparky (just east of Washington and south of I-10) 30 Comment
  UCR49777  Bowlesia incana B. G. Pitzer, A. C. Sanders 1987-4-21 0491 Riverside Box Spring Mountains, near southernmost radio towers 793 Comment
  RSA800057  Brandegea bigelovii J. Andre 2012-3-19 21299 Riverside Orocopia Mountains; north end of range, 0.5 miles south of junction of Box Canyon Road and I-10 freeway, 23 miles east of city of Coachella. 488 Comment
  UCSB41346  Brandegea bigelovii Millett, Barbara 1980-5-18 Riverside Corn Springs Wash, Corn Springs Rd., 7 miles southwest of junction with Chuckwalla Rd., Colorado Desert 457 Comment
  SBBG95096  Brassica fruticulosa A. C. Sanders, O. F. Clarke 1989-4-5 9035 Riverside Box Springs Mtns, on E side of Riverside, (area burned spring of 88) at end of dirt rd on Two Trees Cyn Comment
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Sep 10 2011
  UCR138915  Brassica geniculata Julie A. Greene 1993-4-3 1079 Riverside San Jacinto Valley, San Jacinto Wildlife Area. south of levee road, south of the permanent pond 441 Comment
  SEINET11195157  Brassica tournefortii D. Atwood 1993-3-26 17687 Riverside Along Hwy 74, 6 miles NE of San Juan Capistrano. Comment
  RSA0125868  Brassicaceae Duncan S. Bell, Joy D. England 2010-5-17 1004 B Riverside San Jacinto Mountains region: San Bernardino National Forest: Rouse Ridge, approximately 3 air miles southeast of junction of Highway 74 and forest service road 5S15. 1045 Comment
  RSA342556  Brickellia arguta R. F. Thorne 1980-5-28 54208 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  UCR43491  Brickellia arguta R. F. Thorne, W. A. Tilforth 1980-5-28 54208 Riverside San Bernardino Mtns., Branch canyon west of Whitewater Canyon, c. 3.2 mi. north of Whitewater Post Office and Hwy 10. 612 Comment
  UC76424  Brickellia californica Miss M. Alice King 1893-1 Riverside Menifee Comment
  JEPS18629  Brickellia incana W. L. Jepson 1928-4-23 12555 Riverside 2.5 mi below Cottonwood Springs (s edge of Cottonwood and Eagle Mts., Colorado Desert); Colorado Desert, Cottonwood Mts., Eagle Mts. 487 Comment
  UCSB37838  Brickellia incana Roos, John 1965-6-23 Riverside Colorado Desert; Lost Palms Wash, north of Chiriaco Summit near the Eagle Mtns. Comment
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Mar 26 2011
  SD135112  Brickellia oblongifolia var. linifolia Craig Reiser, Dylan Hannon 1993-5-30 Riverside Near Santa Rosa Peak Comment
  UCSB30515  Briza minor Schroeder, Gail 1976-5-17 Riverside W side of Rancho Mirage Elementary School, in area of drainage from faucet on wall; Rancho Mirage Comment
  UC219285  Brodiaea filifolia P. A. Munz and I. M. Johnston 1922-5-19 5412 Riverside 1 mi E of Perris 441 Comment
  SD132932  Brodiaea terrestris subsp. kernensis Tim Cass, Fred Sproul 1979-6-1 201 Riverside Mesa de Colorado, Pool A. (IPB 2/08) Comment
  CAS-BOT-BC149332  Bromus arizonicus H. M. Hall 1905-1-1 5980 Riverside Colorado Desert. Comment
  RSA385315  Bromus carinatus N. C. Cooper 1945-5-24 1647 Riverside Big Oaks Canyon, Banning, San Gorgonio Mountains. 1220 Comment
  UCD59301  Bromus diandrus A. A. Beetle 1944-4-27 1998 Riverside West of Murietta. Comment
  UCR138916  Bromus diandrus Julie A. Greene 1993-4-3 1078 Riverside San Jacinto Valley, San Jacinto Wildlife Area. south of levee road, south of the permanent pond 441 Comment
  UCR178343  Bromus diandrus Tracy Tennant, Mitch Provance, Jeffrey Ross 1998-6-25 MOR- 1050 Riverside Transverse Range; San Bernardino Mtns., Morongo Indian Reservation, upper Corral Canyon, tree stand C-01 1280 Comment
  UCR92448  Bromus diandrus A. C. Sanders, S. Hawkins, J. Goetzen, D. Freeman 1996-5-1 18110 Riverside San Bernardino Mtns, Morongo Indian Reservation, natural pond & bog at SE edge of Burro Flats 1100 Comment
  POM363885  Bromus hordeaceus N. C. Cooper 1945-5-24 1651 Riverside Big Oaks Canyon [34?02'N 116?50'30W], San Gorgonio Mountains, Banning. 1220 Comment
  UCR2232  Bromus hordeaceus F. M. Reed 1906-5-31 970 Riverside Riverside, on Sedgwick Street in a little arroyo 274 Comment
  POM363886  Bromus hordeaceus N. C. Cooper 1944-4-22 1113 Riverside Banning. 732 Comment
  RSA586493  Bromus hordeaceus D. L. Banks, Steve Boyd 1995-5-9 324 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
  UCD58491  Bromus hordeaceus subsp. divaricatus E. W. Lathrop 1960-6-7 4850 Riverside 14 miles west of Murrieta. Comment
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Apr 28 2011
  JOTR32136  Bromus madritensis subsp. rubens La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2292 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Sandy pediment/bajada surrounding granitic ourcrops near Stirrup Tank parking lot (Stop 1) Comment
  UC1537243  Bromus madritensis subsp. rubens Gordon H. True Jr. 1935-3-11 68 Riverside Sycamore Canyon, Box Springs Box Springs; Sycamore Canyon, Box Springs 365 Comment
  UCR2247  Bromus rubens F. M. Reed 1907-5-26 1377 Riverside Riverside, Evan's Spring Brook pasture 250 Comment
  RSA613628  Bromus tectorum D. L. Banks, Victor Steinmann 1997-3-13 1489 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
  UCR115995  Bromus tectorum A. C. Sanders, Pam MacKay, E. J. Lawlor, C. L. Sanders 2000-3-19 23317 Riverside Shipley-Skinner Reserve area, Diamond Valley, off old Rawson Rd. north of Crown Valley, on future bed of Diamond Val. Reservoir, now filling 488 Comment
  HSC66543  Caesalpinia virgata Christopher Davidson 1979-4-4 7691 Riverside Orocopia Mts. Lower end of Box Canyon Rd., 4.4 mi. E of Mecca. 213 Comment
  RSA653708  Caesalpinia virgata Scott D. White 2000-3-27 7640 Riverside Coachella Valley, Indio Hills area: Bajada at south side of hills, in Granite Rock Aggregate Quarry operation area. Disturbed soils near powerline tower on S margin of quarry. 46 Comment
  UCR86192  Caesalpinia virgata A. C. Sanders 1995-5-23 17125 Riverside Sonoran (Colorado) Desert, Coachella Valley, alluvial fans below the Santa Rosa Mountains, near the mouth of Martinez Canyon, at end of 72nd Avenue 25 Comment
  SD137660  Calandrinia breweri Steve Boyd 1995-4-5 8425 Riverside Agua Tibia Wilderness Area, northern flank of Agua Tibia Mountain at the eastern edge of the Dripping Springs Alcove in tributary of Arroyo Seco, west of the Lower Dripping Springs Trail, just south of the Wilderness boundary 579 Comment
  RSA198935  Calandrinia ciliata R. F. Thorne, E. W. Lathrop, Ora M. Clark, Sherwin Carlquist 1968-4-18 37434 Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California. 609 Comment
  UCR128567  Calandrinia ciliata A. C. Sanders, Mitch Provance 2001-4-5 23917 Riverside Perris-Aguanga Basin region, Long Canyon, Temecula, between gas pipeline route and 'windmill,' south of BM 1221 366 Comment
  UCR138643  Calandrinia ciliata D. L. Banks 1997-2-17 1272 Riverside Agua Tibia Mtns., NW Palomar Mountains: burned areas in the Temecula community of Redhawk, south of the intersection of Redhawk Parkway and Tehachapi Pass Road 396 Comment
  UCR225591  Calandrinia ciliata A. C. Sanders, T. B. Salvato 2011-3-29 38883 Riverside Peninsular Range; Perris-Aguanga Basin Region, between Sun City and Perris, along powerline corridor between Byers St. at west end of McLaughlin Rd. and Wheat St. 447 Comment
  RSA357120  Callitriche marginata R. F. Thorne 1973-5-23 45522 Riverside Santa Rosa Plateau-Mesa De Colorado: Wet margin of vernal marsh 609 Comment
  MACF022933  Calocedrus decurrens Trudy R. Ericson 1979-5-28 1018 Riverside 1.6 mi. from intersection of F. S. Rd. opposite Toledo Springs Campground and Thomas Mtn. Loop Road on F. S. Rd., Santa Rosa Mtns. 2072 Comment
  UCR26355  Calocedrus decurrens A. C. Sanders, J. A. Harpel 1981-8-26 2337 Riverside Santa Rosa Mtns., Cedar Spring 2250 Comment
  SEINET3101964  Calochortus palmeri Marc A. Baker, Michelle Cloud-Hughes 2011-6-12 17376 Riverside Goff Flat, 5.5km southwest of Pyramid Peak. 1625 Comment
  UCR127537  Calochortus palmeri var. munzii A. C. Sanders, K. Kramer 2003-6-11 26875 Riverside San Jacinto Mtns., Garner Valley, foothills on the northeast side of the valley, 1/2 mile west of Morris Ranch Rd. on a dirt track, c. 1 km west of Goff Flat 1616 Comment
  UCR137356  Calochortus palmeri var. munzii 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
  UCR215621  Calochortus splendens Crystal Sheehan 2010-5-10 47 Riverside Peninsular Range; Gavilan Hills Region, Lake Mathews Reserve, c. 1/4 mi. south of 13225 Cajalco Road, south of Lake Mathews, c. 0.4 mi. SE of intersection of Cajalco Rd. and La Sierra Ave. 429 Comment
  CHSC2245  Calochortus weedii E. Thomas 1940-5-26 Riverside Temecula. Comment
  SD245188  Calochortus weedii var. weedii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49545 Riverside Santa Ana Mountains; along Ortega Highway (74), about 2 miles south-southwest of El Cariso. Comment
  SD215390  Calycoseris parryi Steve Boyd, Dave Bramlet 1991-5-13 6243 Riverside Domenigoni Hills, North side of Domenigoni-Diamond Valleys east-southeast of Winchester. Vicinity of ultramafic outcrop on ridge top South of Sounth end of Warren Road. 548 Comment
  SD140209  Calycoseris wrightii A. C. Sanders, E. J. Lawlor 1992-4-4 12114 Riverside McCoy Mountains. Within 1/2 mile of McCoy Spring; alluvial slopes below and to the south and canyon bottom above the spring. 244 Comment
  SD215627  Calyptridium monandrum Steve Boyd, Tim Ross, et al. 1990-4-2 4031 Riverside Vail Lake area, lower slopes of Agua Tibia Mountain along Highway 79. 487 Comment
  UC7765 Image available Calyptridium monospermum H. M. Hall 1897-7-22 714 Riverside San Jacinto Mt.; ; Mt. San Jacinto, Riverside Co. 3293 Comment
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Jul 5 2008
  SEINET215201  Calystegia J. C. Lee 1966-4-9 24 Riverside Highway 74, Elsinore. 305 Comment
  SEINET4077335  Calystegia macrostegia subsp. arida C. Davidson 1975-1 2806 Riverside Roughly four miles south of Banning on road R1 to Idyllwild. 1127 Comment
  UCR215624  Calystegia macrostegia subsp. arida Crystal Sheehan 2010-5-10 48 Riverside Peninsular Range; Gavilan Hills Region, Lake Mathews Reserve, c. 1/4 mi. south of 13225 Cajalco Road, south of Lake Mathews, c. 0.4 mi. SE of intersection of Cajalco Rd. and La Sierra Ave. 429 Comment
  CSUSB671  Calystegia macrostegia subsp. tenuifolia Bill Marks 1971-5-16 Riverside Growing on the side of the road in the Santa Ana Mountains behind Murrietta. Comment
  UCR241181  Camissonia Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 11 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, lower Hathaway Canyon along Hathaway Canyon Rd. 826 Comment
  UCR241184  Camissonia Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 07 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, lower Hathaway Canyon along Hathaway Canyon Rd. 826 Comment
  POM66476  Camissonia arenaria Marcus E. Jones 1924-2-7 s.n. Riverside Salton Sink near Oasis. Comment
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Mar 27 2010
  UCR260546  Camissonia bistorta T. B. Salvato, Matt Malle 2014-5-29 8024 Riverside Perris-Aguanga Basin, Menifee, northeast corner of Bundy Canyon Road and Cottonwood Hills (= Sunset Ave), c. 1 mi west of Murrieta Rd and 4.3 mi southeast of Canyon Lake 534 Comment
  CLARK-A1528-3319  Camissonia boothii John C. Roos 1949-4-19 4112 Riverside Mecca Comment
  RSA75398  Camissonia boothii subsp. condensata F. W. Peirson 1920-2-16 784 Riverside Colorado Desert. Garden of Eden east of Palm Springs. Comment
  UCR249508  Camissonia boothii subsp. condensata T. B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-3-8 7282 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
  RSA9345  Camissonia boothii subsp. condensata Mary F. Spencer 1920-4-3 1445 Riverside Colorado Desert, Palm Springs, in desert sand. 122 Comment
  RSA263683  Camissonia californica E. W. Lathrop 1975-8-15 7468 Riverside 5 miles W of Murrieta, Los Gatos Road, on south slope of Mesa de Colorado. Comment
  SEINET7048153  Camissonia californica Steven R. Hill 2001-5-3 33654 Riverside Northeast-facing slopes of Mount San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, about 3.8 miles due west of California Route 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area. Elevation about 2600 feet. Comment
  JOTR16756  Camissonia campestris subsp. campestris Hogan, J. 1974-6-24 177 Riverside Joshua Tree National Park. .7 MILES WEST OF BARRICADE AT UPPER COVINGTON FLAT 1524 Comment
  SBBG24967  Camissonia campestris subsp. campestris D. Myrick 1966-4-2 1345 Riverside Palms to Pines Hwy 74, ca. 5 mi W of Palm Desert Comment
  RSA454732  Camissonia cardiophylla Anstruther Davidson 1903-5-3 s.n. Riverside Thermal. Comment
  RSA454741  Camissonia cardiophylla M. B. Dunkle 1935-3-30 4423 Riverside Pinto Basin. Colo. Desert. Comment
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Dec 12 2011
  UCR274811  Camissonia cardiophylla Aaron C. Sedgwick, David Fraker 2012-4-24 012 Riverside Sonoran (Colorado) Desert, Palen Valley south of Power Line Road that paralleles Hwy I-10 159 Comment
  HSC78592  Camissonia claviformis J. C. Roos 1966-5-20 Riverside 2 mi. SE of Desert Center Comment
  UCR20765  Camissonia claviformis A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1330 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UCR233702  Camissonia claviformis Duncan S. Bell 2010-5-1 889 Riverside Sonoran (Colorado) Desert, Arica Mountains, c. 10.5 air miles SW of Rice, c. 2.6 air miles S of the junction of Hwy 62 and the aqueduct access road 291 Comment
  SEINET10870498  Camissonia claviformis Noel H. Holmgren, Patricia K. Holmgren 1974-3-23 Holmgren 7472 Riverside Box canyon wash, 11.4 mi e-ne of mecca. T6s. R10e. Sec35. Locally common gravelly slope of wash bank. Petals bright yellow. 244 Comment
  POM27200  Camissonia claviformis subsp. aurantiaca Lyman Benson 1933-3-31 4168 Riverside Beginning of Hemet Road [presumably Hwy 74 on desert side, Deep Cyn.] Colorado Desert watershed. 549 Comment
  RSA135222  Camissonia claviformis subsp. aurantiaca Peter H. Raven 1958-1-25 11487 Riverside Salt Creek wash, 2.6 miles north of Durmid, east side of Salton Sea. Comment
  RSA72237  Camissonia claviformis subsp. aurantiaca F. W. Peirson 1920-2-16 2707 Riverside Palm Canyon stream below the canyon, Palm Springs. region Comment
  RSA778138  Camissonia claviformis subsp. aurantiaca Jim Andre 2011-2-2 16211 Riverside Coachella Valley; west of Palm Springs along Hwy. 111 (south side) at base of San Jacinto Mts. at Windy Point, approx. 5.5 miles from Jct. with I-10 259 Comment
  UCR260545  Camissonia hirtella T. B. Salvato, Matt Malle 2014-5-29 8025 Riverside Perris-Aguanga Basin, Menifee, northeast corner of Bundy Canyon Road and Cottonwood Hills (= Sunset Ave), c. 1 mi west of Murrieta Rd and 4.3 mi southeast of Canyon Lake 534 Comment
  UCR96811  Camissonia intermedia Scott D. White 1993-3-12 1184 Riverside Near Winchester 466 Comment
  RSA465913  Camissonia pallida subsp. hallii N. C. Cooper 1944-4-23 1111 Riverside Banning. 701 Comment
  JOTR28914  Camissonia pallida subsp. pallida La Doux, Tasha, Bill Truesdell 2004-3-11 1149 Riverside Joshua Tree National Park. Pinto Basin; Sand Hills 533 Comment
  JOTR30663  Camissonia pallida subsp. pallida Andre, Jim, Tasha La Doux 2008-3-21 8841 Riverside Joshua Tree National Park. Lower Wilson Wash along NE side of paved road 852 Comment
  RSA449243  Camissonia pallida subsp. pallida Anstruther Davidson 1904-5-1 1090 Riverside Palm Springs. Comment
  RSA675983  Camissonia refracta Scott D. White 2001-4-17 8347 Riverside Sonoran Desert: Shaver s Valley. North of the I-10 Freeway, ca. 16 miles east of Indio jtn. I-10 / SR 111. Bajada, washes, and mtn. foothills near powerline access roads at unnamed freeway exit accessing pump station. 457 Comment
  SD136805  Camissoniopsis hirtella Steve Boyd 1992-4-14 6788 Riverside San Mateo Canyon Wilderness Area; along Verdugo Trail from Tenaja Trail to Bluewater Trail in upper watershed of Bluewagter Canyon, south of Sitton Peak. 792 Comment
  UC172909  Camissoniopsis pallida subsp. pallida E. E. Schellenger 1911-4-25 Riverside Point of Rocks Colorado Desert, Whitewater Wash Comment
  SEINET7556721 Image available Carex densa A. C. Sanders 2004-4-20 27567 Riverside Santa Ana Mtns: Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line. Fallbrook 7.5' Q. 640 Comment
  CAS-BOT-BC20704  Carex fracta Carl B. Wolf 1932-8-5 3983 Riverside San Jacinto Mountains. Summit of San Jacinto Peak. 3293 Comment
  UCR24807  Carex fracta George K. Helmkamp 1981-7-5 s.n. Riverside San Jacinto Mountains, spring alongside the Black Mountain Road, 6 mi from the Banning to Idyllwild Hwy (243) Comment
  POM319473  Carex multicaulis Patricia Wilder 1968-7-5 4326 Riverside Idyllwild. San Jacinto Mountains, Strawberry-Little Tahquitz Creek Drainage Area. 1889 Comment
  UC72391  Carex multicostata H. M. Hall 1901-7 2492 Riverside Lake Surprise San Jacinto Mountains 2499 Comment
  UCR264618  Carex praegracilis Mitch Provance 2011-6-6 17007 Riverside Badlands, San Timoteo Canyon, El Casco area, north of San Timoteo Canyon Rd. and east of Woodhouse Rd 626 Comment
  SBBG57217  Carex sartwelliana R. Hoffmann 1929-9-8 Riverside San Jacinto Mtns 1828 Comment
  UCR123632  Carex spissa Steven R. Hill, A. C. Sanders 2001-5-4 33729 Riverside Santa Rosa Plateau, Carancho Road, at crossing of De Luz Creek (headwaters) 360 Comment
  SD134357  Carex subfusca R. Mitchel Beauchamp 1971-5-15 2421 Riverside San Jacinto Mtns. Along stream below Lake Fulmore 1600 Comment
  UCR51372  Carex triquetra D. C. Hawks 1988-5-15 s.n. Riverside Peninsular Range, Rainbow Canyon Road south of Temecula. Comment
  RSA0011149  Carya illinoinensis A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37151 Riverside Box Springs Mtns. Foothills, Riverside, eastern side of UCR Campus in canyon below botanical garden 320 Comment
  RSA792471  Castela emoryi Justin M. Wood, Dustin Ray 2011-4-28 3836 Riverside Sonoran Desert: Chuckwalla Valley: 6.5 miles north of Desert Center on Kaiser Road, +/- 0.4 miles northeast of bend in road. 202 Comment
  CLARK-A1528-5731  Castilleja affinis John C. Roos 1937-5-10 2075 Riverside Perris Comment
  POM229446  Castilleja applegatei subsp. martinii Philip A. Munz 1937-5-30 15078 Riverside Northwest slope of Santa Rosa Mt. 2134 Comment
  SD68960  Castilleja densiflora subsp. gracilis Robert F. Thorne, P. A. Munz, E. Lathrop 1968-5-8 37582 Riverside Santa Rosa Plateau: vernal marsh on Mesa de Colorado, Rancho California 671 Comment
  RSA0013616  Castilleja exserta subsp. exserta LeRoy Gross, Duncan S. Bell 2013-4-30 6023 Riverside Surveyed from Apela Drive, right at junction of road to sewage disposal ponds, south to Strawberry Creek. Started near 33.73367N, 116.75074W. And ended at 33.72912N 116.75098W. 1510 Comment
  RSA400583  Castilleja foliolosa Robert Gustafson 1980-5-5 1560 Riverside Whitewater Canyon Road, 1.8 miles from the junction with Interstate 10. 610 Comment
  UC64213  Castilleja foliolosa H. M. Hall May 1899 Riverside desert side San Jacinto Mts. 1371 Comment
  SEINET3365543  Casuarina equisetifolia G. Rink 2011-10-11 11080 Riverside Next to agricultural fields east of the McCoy Mountains, northwest of Blythe, used as a windbreak for lemon grove 160 Comment
  CAS-BOT-BC41089  Caulanthus hallii Ynez Whilton Winblad 1937-4-23 s.n. Riverside Palms to Pines Highway. Mount San Jacinto. Comment
  UCR27067  Caulanthus hallii T. P. Krantz, K. Berg 1982-5-26 s.n. Riverside San Jacinto Mtns., along Bonita Vista Road, north of Garner Valley Comment
  SBBG101780  Caulanthus heterophyllus S. Boyd with T. Ross, M. Hammitt 1991-5-2 6022 Riverside SW and W flanks of Billy Goat Mtn, 3 mi N of Hwy 79, 1 mi W of Hwy 371, N of Aguanga 600 Comment
  UCR108998  Caulanthus heterophyllus D. L. Banks 1997-3-29 1558 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation. Headwaters of Pala Creek at the S extremity of the Reservation, north of the Riverside/San Diego Co. line, west of the intersection of Magee Truck Trail and Moreno Rd including a large area of vernally wet grassland at the extreme SW corner of the Reservation 409 Comment
  POM97125  Caulanthus heterophyllus P. A. Munz 1925-5-20 9825 Riverside 2 miles W of Dripping Spring. 427 Comment
  SBBG87473  Caulanthus lasiophyllus A. C. Sanders, B. Pitzer, D. Charlton 1986-3-3 6099 Riverside Corn Spring, Chuckwalla Mtns; T6S R16E S28 487 Comment
  UCR244873  Caulanthus lasiophyllus Jim Andre 2012-3-19 21396 Riverside Sonoran (Colorado) Desert, Palen Mountains, along Palen Pass Rd at Palen Pass 383 Comment
  SD229234  Ceanothus cordulatus Dick Schwenkmeyer 2012-6-27 748 Riverside Strawberry Creek, 1/4 mile northwest of Humber Park, Idyllwild. 1914 Comment
  IRVC26891  Ceanothus crassifolius C. B. Wolf 1932-2-11 2648 Riverside Hidden [Tin Mine] Canyon, 5 mi. W of Corona, base of Skyline Drive. Santa Ana Mtns 405 Comment
  LA41978  Ceanothus crassifolius W. E. Pequegnat; 1939-4-8 34 Riverside Santa Ana Mts Comment
  RSA16507  Ceanothus crassifolius Percy C. Everett 1935-6-17 7151 Riverside Coldwater Canyon Trail to Santiago Peak., 2 miles above Glen Ivy Resort. 610 Comment
  RSA234078  Ceanothus crassifolius Robert F. Thorne, E. W. Lathrop 1969-6-6 39332 Riverside Santa Rosa Plateau: Rancho California. 610 Comment
  UCR174966  Ceanothus crassifolius Teresa Nieto 2005-4-24 21 Riverside Peninsular Range, Wildomar, Menifee Hills, south of Bundy Canyon Rd. c. 1 mile from Harvest Way East, north of Felswood Rd. 579 Comment
  LA42002  Ceanothus cuneatus W. E. Pequegnat; 1939-4-8 50 Riverside Mira Loma Comment
  UCR58473  Ceanothus cuneatus Ed LaRue 1989-1 s.n. Riverside foothills of San Bernardino Mtns, Hills east of Beaumont, along Potrero Creek, 0.5 mi. east of old San Jacinto Nuevo Y Potrero land grant 701 Comment
  UC870523  Ceanothus cuneatus var. cuneatus I. W. Clokey, B. C. Clokey, and C. B. Clokey 1930-4-15 4736 Riverside Gavilan Peak 600 Comment
  UC870525  Ceanothus cuneatus var. cuneatus I. W. Clokey and E. G. Anderson 1935-4-16 6734 Riverside e of Hemet 820 Comment
  RSA645609  Ceanothus greggii Scott D. White, Steve Ogg 1994-4-21 1973 Riverside Millard Canyon, near stream crossing w/ USFS Road 2S05, +/-4 miles south of Bear Wallow Spring. 915 Comment
  UC774865  Ceanothus integerrimus Carl B. Wolf 1941-8-15 11155 Riverside n side and 1/2 mi from summit Santiago Peak; Santa Ana Mts. Comment
  CAS-BOT-BC51280  Ceanothus leucodermis R. S. Woglum 1941-6-12 3058 A Riverside Idyllwild Comment
  SBBG119994  Ceanothus leucodermis A. C. Sanders with M. Misenhelter 2005-3-23 29263 Riverside E slope of Squaw Mtn, Avenida Escala just above Avenida Caleta, N of Tenaja Rd; Santa Rosa Plateau 701 Comment
  RSA0019585  Ceanothus leucodermis Toppenberg 1961-5-12 s.n. Riverside Hwy to Idyllwild, Beaumont side. Comment
  RSA0060580  Ceanothus leucodermis Bob Rogers 1984-4-28 21 Riverside Collected on North-facing slope adjacent to and on the South side of Highway 74, 3.6 miles from Strawberry Creek going towards Mountain Center. 1219 Comment
  RSA0019588  Ceanothus oliganthus var. oliganthus Elbert Benjamine 1929-4-7 127 Riverside San Gorgonio Pass, southern California. Comment
  RSA570553  Ceanothus ophiochilus Steve Boyd, Chris Frazier 1993-4-24 8012 Riverside Palomar Range south of Vail Lake at the north base of Agua Tibia Mountain, Agua Tibia Wilderness Area, Cleveland National Forest. 1000 Comment
  RSA282926  Ceanothus palmeri C. W. Tilforth, B. Busenberg 1980-6-17 2009 Riverside Along Thomas Mtn Rd, above Lake Hemet, and west of Hwy 74. 1524 Comment
  SD225088  Ceanothus palmeri Scott D. White 1996-8-15 4476 Riverside Idyllwild Area: USFS Rd. 5S10 at jct. w/foot trail 2E16, at an intermittent stream channel. 1631 Comment
  SBBG34228  Ceanothus perplexans T. L. Secrest 1951-5-20 Riverside San Jacinto Mtns Comment
  POM12992  Ceanothus tomentosus subsp. olivaceus P. A. Munz, I. M. Johnston 1922-5-19 5311 Riverside Santa Ana River Canyon. 457 Comment
  RSA158466  Ceanothus tomentosus var. olivaceus P. A. Munz 1927-5-20 10826 Riverside 10 miles south of Hemet Comment
  RSA598145  Cenchrus spinifex D. L. Banks, Lauren Raz 1996-8-29 1133 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; Along Los Caballos Road, approximately 0.5 m S of Hwy. 79, 100 m N of the Golf Course access road;, along the E side of the road under the drip irrigation line to a vineyard. 399 Comment
  RSA430195  Centaurea melitensis E. Misquez 1987-5-16 9 Riverside Santa Ana Mountains, Walker Basin; 2 miles on Avenida de Oro from Jct with Rancho California road and 4.7 miles west of Interstate 15. 415 Comment
  UCR23674  Centaurea repens John C. Roos 1965-9-21 s.n. Riverside Riverside, Arlington area Comment
  CLARK-A1045-865  Centaurium venustum George K. Helmkamp 1978-6-1 #2 Riverside Santa Ana Mountains off of De Luz Road near [southeast of] Mesa de Burro; ; Murrieta 7.5'Q 487 Comment
  RSA191405  Centaurium venustum E. W. Lathrop, Robert F. Thorne 1967-9-26 6651 Riverside 6 miles NW of Murrieta. Comment
  UCR143377  Centaurium venustum C. B. Wolf 1932-8-6 3994 Riverside San Jacinto Mountains, 2.9 mi from Idyllwild on the [control] road to Hemet 1220 Comment
  UCR21550  Centaurium venustum W. W. Mayhew 1980-7-18 s.n. Riverside Santa Rosa Mtns., 1 mi. south of Hwy 74 on the road to Santa Rosa Peak. 1585 Comment
  SBBG101694  Centromadia pungens subsp. laevis S. Boyd with T. Ross 1991-6-14 6354 Riverside Warm Springs Crk at the NE end of Hogbacks ridge, from Alamos Rd S to confluence W Adobe Spring tributary, 2-3 mi NW of Murrieta Hot Springs 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
  CLARK-A1656-871  Cercidium floridum Jim Cornett 1977-7-2 Riverside Desert Hot Springs 441 Comment
  RSA86985  Cercidium floridum F. W. Peirson 1921-4-13 sn Riverside Deep Canyon Wash, about 12 miles SE of Palm Springs. 152 Comment
  JEPS45709  Cercidium floridum subsp. floridum W. L. Jepson 1912-10-28 5239 Riverside Colorado River Riverside Mts. (mesa) Comment
  UC527317  Cercocarpus betuloides var. betuloides C. B. Wolf 1931-5-11 1950 Riverside near Pipe Creek (above Hemet Valley, San Jacinto Mountains); San Jacinto Mountains 1676 Comment
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Mar 24 2011
  RSA523502  Cercocarpus minutiflorus Steve D. Boyd, Tim S. Ross, L. Arnseth 1990-3-30 3962 Riverside Vail Lake Area, westerly drainage cyn at N base of 'Big' Oak Mtn. 640 Comment
  UCR231761  Chaenactis artemisiifolia John F. Green 2008-4-23 09- 06 Riverside Peninsular Range; SE Gavilan Hills, powerline route in hills SE of Perris, east of Hwy 74 and north and NE of Eugene St., both sides of Theda St. 503 Comment
  CAS-BOT-BC293742  Chaenactis carphoclinia Mona Bourell 1987-4-14 3269 Riverside BLM California Conservation Area, Hwy 195. Spur off of Box Canyon, near Mecca 150 Comment
  RSA676119  Chaenactis carphoclinia Scott D. White 2001-4-3 8221 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  SBBG87840  Chaenactis carphoclinia A. C. Sanders, B. Pitzer 1986-3-3 6110 Riverside Corn Spring, wash below the spring and wash and rocky slopes to the S Chuckawalla Mtns, T6S, R16E, S28 487 Comment
  SBBG99385  Chaenactis carphoclinia W. L. Halvorson 1977-2-15 77 -26 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  POM66298  Chaenactis carphoclinia var. carphoclinia Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  UC1546631  Chaenactis carphoclinia var. carphoclinia Barry A. Prigge 1988-2-21 7853 Riverside 2 mi w of Clemans Well; Colorado Desert, Orocopia Mountains 228 Comment
  UCR75051  Chaenactis carphoclinia var. carphoclinia A. C. Sanders, E. Lawlor 1992-4-4 12106 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  CAS-BOT-BC276908  Chaenactis fremontii Carl B. Wolf 1937-5-4 8526 Riverside Colorado Desert. Little San Bernardino Mountains. Morongo Wash, 1 mile below San Bernardino County line 609 Comment
  CLARK-A1656-747  Chaenactis fremontii Theo Glenn 1979-3-28 Riverside Palm Springs Comment
  CSUSB1489  Chaenactis fremontii Wayne R. White 1975-5-10 S. N. Riverside Chuckwalla Mountians Red Cloud road, south of Highway I-10, Colo. Desert 609 Comment
  LA212022  Chaenactis fremontii Deidre Conocchioli; Duncan Bell 2014-3-4 142 Riverside Off the Pacific Crest Trail in the San Bernardino Mountains. In Whitewater Canyon 8.5 miles E of Hwy-62. Just S of Red Dome. 695.0 Comment
  POM351693  Chaenactis fremontii Christopher Davidson 1973-4-1 1843 Riverside Along Hwy 74 on desert hillside facing Palm Desert. 488 Comment
  POM351701  Chaenactis fremontii Anstruther Davidson 1904-5-1 1097 Riverside Palm Springs. Comment
  POM351704  Chaenactis fremontii Chas. Gabriel 1926-2-20 237 Riverside Rincon [R. Village, Andreas Canyon] Comment
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Nov 17 2011
  UCR260843  Chaenactis fremontii A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-25 41510 Riverside San Gorgonio Pass, c. 1.5 miles east of Cabazon, north of the San Gorgonio River wash on the alluvial slope between the water bottling plant and I-10 and west along dirt track, near Elm St. 498 Comment
  SEINET7073434  Chaenactis glabriuscula A. G. Vestal 1963-4-25 s.n. Riverside About 6.8 miles south of Sage on Route 3. Coordinate datum: NAD27. Comment
  CAS-BOT-BC277401  Chaenactis glabriuscula var. glabriuscula H. M. Hall 1901-6-1 2056 Riverside San Jacinto Mountains. In the vicinity of Chalk Hill 1524 Comment
  CAS-BOT-BC277404  Chaenactis glabriuscula var. glabriuscula A. J. McC. 1892-1-1 s.n. Riverside Elsinore Comment
  UC34688  Chaenactis glabriuscula var. glabriuscula Geo. F. Reinhardt 1897-6-1 Riverside San Jacinto Valley Comment
  UC55096  Chaenactis glabriuscula var. glabriuscula H. M. Hall 1903-4-1 3800 Riverside vicinity of Riverside 426 Comment
  RSA522709  Chaenactis glabriuscula var. lanosa Steve Boyd, Timothy S. Ross, L. Arnseth 1990-3-29 3895 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
  SEINET7450235 Image available Chaenactis glabriuscula var. lanosa H. M. Hall 3845 Riverside Riverside Comment
  JOTR32135  Chaenactis stevioides La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2291 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Sandy pediment/bajada surrounding granitic ourcrops near Stirrup Tank parking lot (Stop 1) Comment
  UCD20139  Chaenactis stevioides Donald W. Kyhos 1976-3-17 67 -7 Riverside 20.6 miles east of Amboy Road on Twentynine Palms Hwy, going towards Vidal Junction. 11.8 miles east of Amboy turnoff. Comment
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Apr 21 2013
  POM351833  Chaenactis stevioides var. stevioides Geo Cantwell 1935-4-8 s.n. Riverside McCoy Springs, McCoy Mnts. [NW of Blythe] Comment
  SEINET3194781 Image available Chamaesyce abramsiana G. Rink 2011-9-25 11070 Riverside South of I-10 at the Ford Dry Lake Exit, in a swale that sometimes holds water. 110 Comment
  JEPS88970  Chamaesyce polycarpa Ethel Rockwell 400 Riverside northwest Colorado Desert, Edom Comment
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Sep 7 2011
  POM295994  Chamaesyce polycarpa Lyman Benson 1945-3-29 11647 Riverside 2 miles south of Whitewater. 366 Comment
  UC1007177  Chamaesyce polycarpa Philip A. Munz 1940-3-23 15672 Riverside Dale rd to Cottonwood Springs south base of Pinto Mtns 609 Comment
  RSA336047  Chamaesyce polycarpa var. hirtella R. F. Thorne, W. Wisura, A. Shmida, R. Whittaker 1978-4-23 52028 Riverside Chino Canyon. Comment
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Apr 25 2011
  RSA576451  Chamaesyce polycarpa var. hirtella Marjorie D. Clary 1937-3-7 2785 Riverside Road to Fargo Canyon, Little San Bernardino Mts., north side of Colorado Desert; 244 Comment
  RSA522311  Chamaesyce prostrata Steve Boyd 1989-7-9 3781 Riverside City of Riverside, 4863 Rubidoux Ave. Comment
  RSA778222  Chamaesyce setiloba Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jackie McConnaughy, Naomi Fraga 2011-3-17 775 Riverside Mecca Hills, Shaver's Well, Adjacent to Box Canyon Road, Shaver's Wash just west of Mecca Copia Trail. 305 Comment
  CAS-BOT-BC68051  Cheilanthes parryi C. L. Parry; J. G. Lemmon 1876-4-1 s.n. Riverside Colorado Desert side of Mt. San Jacinto Comment
  POM292790  Cheilanthes parryi Lyman Benson 1949-3-28 13560 Riverside Santa Rosa Mountains. Pines to Palms Highway from Palm Springs to Hemet. 732 Comment
  POM6637  Cheilanthes parryi P. A. Munz, Street, Williams 1919-3-25 2325 Riverside Palm Canyon. 243 Comment
  RSA685805  Cheilanthes parryi N. R. Zabriskie, W. M. Zabriskie 1971-3-7 349 Riverside Andreas Canyon watershed. 366 Comment
  RSA685806  Cheilanthes parryi W. M. Zabriskie 1973-2-22 135 Riverside Pipistrelle Canyon 75 yards before it turns east, Deep Canyon drainage, N slope of Santa Rosa Mountains 549 Comment
  RSA685818  Cheilanthes parryi Freda Detmers 1930-2-2 s.n. Riverside Palm Canyon. Comment
  UC667395  Cheilanthes parryi Annie M. Alexander and Louise Kellogg 1941-5-12 2160 Riverside road to Black Eagle Mine; Colorado Desert, Eagle Mts 777 Comment
  RSA0114928  Chenopodium berlandieri Mitch Provance 2012-7-17 712 -16 Riverside Beaumont Plain: Banning, south of I-10, vicinity of corner of Sunset Ave. and Westward Ave. 741 Comment
  UCR167823  Chenopodium berlandieri T. B. Salvato, Melissa Clemons 2005-6-23 1308 Riverside Peninsular Range; Temescal Valley, Walker Canyon, 1.5 mi due east of Alberhill, N of Hwy I-15 412 Comment
  UCR115131  Chenopodium berlandieri var. zschackei Mitch Provance 2000-10-28 2276 Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 290 Comment
  UCR115134  Chenopodium berlandieri var. zschackei Mitch Provance 2000-8-24 2218 Riverside Jurupa Mountains, NW extreme of the Jurupa Mountains, as accessed from Country Village Rd. 259 Comment
  RSA614160  Chenopodium californicum D. L. Banks 1997-2-23 1317 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
  SEINET14416905  Chenopodium missouriense Mitch Provance 2012-1 61251 Riverside San Bernardino Valley: Box Springs Canyon, SW base of the Box Springs Mountains, E side of Interstate 215, .25 mi SE of the intersection of Gernert Rd. and Watkins Dr. 422 Comment
  UCR115154  Chenopodium missouriense Mitch Provance 2000-10-14 2256 Riverside Jurupa Mtns., Crestmore area, along the south side of El Rivino Rd., c. 0.4 miles north of Crestmore Quarries. 287 Comment
  SD227793  Chenopodium murale Scott D. White, Pam Devries 1998-2-9 6081 Riverside La Quinta/ Palm Desert Area: Whitewater River Channel at and near Miles Ave. crossing 17 Comment
  RSA450976  Chenopodium murale Stephen M. Beckstrom-Sternberg 1985-9-10 1024 Riverside U.C.R. garden plots. Comment
  RSA764302  Chilopsis linearis Doris Bowers 1966-10-16 792 a Riverside Salton Sea - Painted Canyon 0 Comment
  UC370345  Chilopsis linearis subsp. arcuata unknown 1928-5-20 3 Riverside Palm Springs Comment
  POM9328  Chilopsis linearis subsp. arcuata Mary F. Spencer 1918-4-28 800 Riverside In desert sand. Colorado Desert 122 Comment
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Nov 20 2011
  POM302566  Chimaphila menziesii J. C. Roos 1943-8-8 2697 Riverside Hall Canyon, San Jacinto Mts. 1829 Comment
  JOTR35321  Chorizanthe brevicornu var. brevicornu Harding, Mitzi, Mark Wheeler 2012-2-28 89 Riverside Joshua Tree National Park. Southeast Coxcomb Mountains; eastern slopes of southern tip of range (Stop 1) 177 Comment
  RSA392610  Chorizanthe brevicornu var. brevicornu Christopher Davidson 1979-4-4 7696 Riverside Orocopia Mts. Lower end of Box Canyon Rd., 4.4 mi E of Mecca. 213 Comment
  SEINET7048175  Chorizanthe brevicornu var. brevicornu Steven R. Hill 2001-5-3 33681 Riverside Northeast-facing slopes of Mount San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, about 3.8 miles due west of California Route 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area. Elevation about 2600 feet. Comment
  RSA407722  Chorizanthe fimbriata Steve Boyd 1986-5-1 1785 Riverside Perris-Aguanga Basin region SW Perris Basin, Hill west of Skunk Hollow. Comment
  UCR103478  Chorizanthe parryi var. parryi D. E. Bramlet 1992-4-23 2238 Riverside Peninsular Range, Perris-Aguanga Basin Region, Double Butte Park, in bowl area between the Double Buttes, c. 610 m north of the edge of the old landfill, and 107 m east of the existing (eastern) access road 500 Comment
  UCR231764  Chorizanthe parryi var. parryi John F. Green 2008-4-23 09- 10 Riverside Peninsular Range; SE Gavilan Hills, powerline route in hills SE of Perris, east of Hwy 74 and north and NE of Eugene St., both sides of Theda St. 503 Comment
  UCR263224  Chorizanthe parryi var. parryi A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41468 Riverside San Gorgonio Pass, near San Gorgonio River wash, c. 2.88 miles ESE of Cabazon, c. 1 mi. NNW (338 deg. ) of One Horse Spring, south of I-10 and east of water bottling plant, edge of wind farm 454 Comment
  UCR174095  Chorizanthe polygonoides var. longispina A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32551 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
  RSA180403  Chorizanthe procumbens E. W. Lathrop 1959-5-29 4590 Riverside 14 miles W of Murieta. Tenaja canyon grassland back of Tenaja Guard Station Comment
  SD215611  Chorizanthe procumbens Steve Boyd, Orlando Mistretta 1991-5-22 6294 Riverside Vail Lake area, base of Agua Tibia Mountain, east of Dorland Mountain, west of Kolb Creek. 548 Comment
  UCR77755  Chorizanthe procumbens Steve Boyd, Orlando Mistretta 1991-5-22 6294 Riverside Agua Tibia Mountains, Vail Lake area, base of Agua Tibia Mountain, east of Dorland Mountain, west of Kolb Creek 793 Comment
  HSC87145  Chorizanthe rigida Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. Ross 1988-3-10 2105 Riverside N end Palen Mtns., 2 mi. W of Palen Pass 300 Comment
  POM98786  Chorizanthe rigida P. A. Munz 1926-1-31 9968 Riverside Dos Palmos [Palmas] Spring. Comment
  CAS-BOT-BC246331  Chorizanthe spinosa J. Von Loh 1978-7-11 60375 A Riverside Edward's Air Force Base 762 Comment
  UCR27655  Chorizanthe staticoides John C. Roos 1960-6-5 s.n. Riverside Peninsular Range; Santa Ana Mtns., off the Ortega Hwy, NE slope of Sugarloaf Peak [=Pleasants Peak] 1067 Comment
  POM229445  Chorizanthe xanti var. leucotheca P. A. Munz 1937-5-29 s.n. Riverside Palms to Pines Hwy, north slope of Santa Rosa Moutains. 1067 Comment
  RSA125856  Chrysothamnus nauseosus subsp. bernardinus E. K. Balls, Percy C. Everett 1957-11-6 22793 Riverside Vanderventer Flat, State Hwy 74, 1402 Comment
  UCSB4431  Chylismia claviformis Haller, John 1957-3-23 Riverside at southern boundary of Joshua Tree Natl Mon; 4 air miles S. of Cottonwood Sprs; and 1 mile N. of juct with US 60 609 Comment
  JEPS23483  Chylismia claviformis subsp. aurantiaca Marjorie D. Clary 1933-2-26 2060 Riverside Aqueduct Rd North Colorado Desert 243 Comment
  JOTR34021  Chylismia claviformis subsp. aurantiaca La Doux, Tasha, M. Harding 2010-4-7 2908 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
  RSA0121003  Chylismia claviformis subsp. claviformis Duncan S. Bell, LeRoy Gross 2016-3-8 8830 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern section of the range; approximately 1.75 air miles north of the Bradshaw Trail. 466 Comment
  RSA740946  Cirsium occidentale var. californicum Scott D. White, Justin M. Wood 2008-6-17 12181 Riverside Garner Valley- Kenworthy Station (USFS) 1378 Comment
  UCR136249  Cirsium occidentale var. californicum A. C. Sanders 2004-4-20 27573 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  RSA0012652  Cirsium scariosum var. citrinum LeRoy Gross, Caitlin Elam 2013-5-14 6079 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
  UCR22001  Cirsium vulgare Steve Boyd 1980-7-6 321 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  RSA329670  Cistanthe monandra Gary D. Wallace 1966-3-26 250 Riverside Whitewater Canyon; 13 mi. E. of Banning, San Bernardino Nat l For. 427 Comment
  CLARK-A1528-641  Clarkia cylindrica I. Rauch 1968-5-14 Riverside Santa Ana River Comment
  RSA85121  Clarkia epilobioides J. C. Roos 1952-5-7 5618 Riverside Box Springs Mountains, north of Canyon Crest Heights 488 Comment
  UC20031  Clarkia rhomboidea H. M. Hall June, 1901 2270 Riverside vicinity Strawberry Valley; San Jacinto Mountains 1584 Comment
  UCR268275  Clarkia rhomboidea Jim Andre 2012-6-15 30537 Riverside San Jacinto Mountains, Banning, along Hwy 243, 10.7 miles south of Interstate 10, San Bernardino National Forest 1499 Comment
  UCR174965  Claytonia parviflora Teresa Nieto 2005-4-24 22 Riverside Peninsular Range, Wildomar, Menifee Hills, south of Bundy Canyon Rd. c. 1 mile from Harvest Way East, north of Felswood Rd. 579 Comment
  POM307315  Claytonia parviflora subsp. parviflora Henry J. Ramsey, Henry J. Ramsey 1938-4-22 224 Riverside Santa Rosa Mts. Comment
  RSA282925  Claytonia parviflora subsp. tenuifolia C. W. Tilforth, B. Busenberg 1980-6-17 2018 Riverside Slopes ca. 1/2 mi. south of Toolbox Springs Campground along Thomas Mtn. Road, south of Lake Hemet, west of Hiway 74. 1982 Comment
  UCR16509  Claytonia parviflora subsp. utahensis Carole Sims 1965-5-1 s.n. Riverside San Jacinto Mtns., Tahquitz Meadows [Camp Tahquitz Meadows, north of Hwy 74 at site of Keen Camp, east of Mtn. Center], about 25 yards northeast from place stream crosses under road 1372 Comment
  UC218074  Claytonia parviflora subsp. viridis P. A. Munz and I. M. Johnston 1922-5-19 5394 Riverside Keen Camp; San Jacinto Mts. 1463 Comment
  UCR214129  Claytonia perfoliata A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37743 A Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, north of I-15 and Concordia Ranch Rd., 1.65 mi. ESE of Corona (Lee) Lake, 0.5 mi. NE (25 deg. ) of Temescal Canyon Rd. where it goes under I-15 438 Comment
  UCR268590  Claytonia perfoliata subsp. mexicana Jim Andre 2012-6-15 30539 Riverside San Jacinto Mountains, Banning, along Hwy 243, 10.7 miles south of Interstate 10, San Bernardino National Forest 1499 Comment
  RSA192753  Clematis lasiantha J. D. Olmsted 1959-4-12 367 Riverside W Corona; Chase Drive, turn right to wash, 2-3 mi. up wash road in Santa Ana Mountains. 762 Comment
  UCR16938  Clematis lasiantha E. W. Lathrop 1971-3-21 7453 Riverside Santa Ana Mtns., Cleveland National Forest, Trabuco District, Bedford Truck Trail 1220 Comment
  UCR5925  Clematis lasiantha K. T. Seng 1966-4-13 660413- 9 Riverside Santa Ana Mtns, NE slope of Santa Ana Mountain, end of Main Street, 4 mi. from downtown Corona 457 Comment
  POM158457  Clematis pauciflora P. A. Munz 1927-5-21 10872 Riverside 10 miles SW of Coahuila [now Cahuilla]. Comment
  RSA386287  Clematis pauciflora Jean Carnine 1932-3-28 s.n. Riverside San Jacinto Mountains. Comment
  RSA495428  Clematis pauciflora Steve Boyd, Tim S. Ross, L. Arnseth 1989-3-12 2954 Riverside Vail Lake area, Temecula Creek Cyn., just below Vail Lake Dam. 442 Comment
  RSA511344  Clematis pauciflora B. Pitzer, E. Misquez 1988-3-20 675 Riverside Cleveland National Forest, San Juan Loop Trail, ca. 4 mi. W of El Cariso Village, just across the hwy from Ortega Parks Store. 549 Comment
  SD255842  Clematis pauciflora Adrienne D. Russell, Michael G. Simpson 2000-4-29 129 Riverside North Field Station, Santa Margarita Ecological Reserve, rocky hillside between trailer and gorge on edge of lot, driveway. Comment
  UCR107404  Cnicus benedictus B. G. Pitzer 1997-3-23 2976 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
  UCR93822  Cnicus benedictus P. J. MacKay 1996-6-15 006 Riverside Reche Cyn., 2.5-3 mi. south of S. B. county line on Reche Cyn. Rd. 580 Comment
  CLARK-A1656-713  Coldenia plicata Theo Glenn 1979-4-7 Riverside Palm Springs Comment
  RSA359865  Collinsia concolor Steve D. Boyd 1986-4-2 1616 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  CLARK-A1528-3912  Colubrina californica John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  RSA28642  Colubrina californica A. M. Alexander, Louise Kellogg 1941-5-20 2206 Riverside 5.2 miles northwest of Desert Center, Eagle Mountain pumping station road. 457 Comment
  RSA353380  Colubrina californica A. C. Sanders 1986-3-3 6141 Riverside Corn Spring, Chuckawalla Mtns, wash below the spring and wash and rocky slopes to the south. 488 Comment
  VVC3088  Condalia globosa var. pubescens Tim Thomas, P. J. MacKay 2013-2-23 5918 Riverside Sonoran Desert, South side of the Orocopia Mtns, Salt Ck drainage 468 Comment
  RSA629033  Convolvulus arvensis Scott D. White 1998-6-28 6787 Riverside Corona: River Road bridge over the Santa Ana River. 159 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
  CAS-BOT-BC224364  Convolvulus simulans D. Bramlet 1993-4-14 2327 Riverside Gavilan Hills: Black Rocks Area. The site is 762m NE of Black Rocks and 1.2km south of Cajalco Road. The locality is 305m east of the existing orange groves 445 Comment
  UCR151371  Convolvulus simulans Steve Boyd 2001-4-12 10405 Riverside Peninsular Ranges; Perris-Aguanga Basin region; Gavilan Hills region; Santa Ana Mountains region, Santa Ana Mountains-Gavilan Hills Region: Temescal Canyon, terrace escarpment just south of DePalma Road between Indian Wash and Horsethief wash Comment
  HSC86915  Conyza bonariensis Steve Myers 1988-2-1 Riverside Boulder Springs Development, immediately SE of intersection of Hwy. 60 and Nason St., Moreno Valley 518 Comment
  POM305808  Coreopsis californica Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1051 Riverside Corona-Elsinore. Comment
  JOTR32156  Coreopsis californica var. californica La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2310 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Sandy wash in wide canyon that feeds southwest into Wilson Canyon, with gneiss outcrops on either side of canyon (Stop 5) Comment
  LA99053  Corethrogyne filaginifolia E. R. Hobbs; G. Malanson, Walt Westman 1978-9-30 78- 132 Riverside Cortrite Avenue, Homeland Comment
  POM230198  Corethrogyne filaginifolia I. W. Clokey, E. G. Anderson 1933-8-21 6962 Riverside N Fork San Jacinto River. 1500 Comment
  RSA192329  Corethrogyne filaginifolia E. W. Lathrop 1966-9-14 6596 Riverside 3 miles SW of Murrieta. Comment
  UCD130861  Corethrogyne filaginifolia R. N. Raynor 1933-3-31 s.n. Riverside Moreno Valley. Comment
  RSA0042780  Cornus nuttallii A. Lee Haines 1951-5-19 s.n. Riverside Dark Canyon, San Jacinto Mt. 1981 Comment
  CSUSB946  Coronopus didymus Oscar F. Clarke, James K. Ryan 1969-5-28 Riverside City of Riverside. Yard of 1021 Spruce Street, growing as weed. 335 Comment
  UCR46571  Crassocephalum crepidioides A. C. Sanders 1986-9-15 6960 Riverside Peninsular Range, Cardiff Growers on Anza Rd., Temecula Comment
  RSA719777  Crassula aquatica Naomi Fraga, Ilene Anderson, Mike Hamilton, Michael Wall, Gary D. Wallace 2006-9-7 1779 Riverside Mount San Jacinto State Park, Hidden Lake. 2652 Comment
  UCR154548  Crassula aquatica Jason L. Hlebakos 2005-5-18 698 Riverside Santa Rosa Plateau, Pool on E side of Mesa de Burro, above upper end of Miller Canyon 610 Comment
  SDSU13920  Crassula connata Michael G. Simpson, Claudia Luke & Shane Waddell 2000-5-23 2136 Riverside Santa Margarita Ecological Reserve (SDSU), southeastern region, ca. 1/4 mile north of El Valle meadow. 646 Comment
  UCR116463  Crassula connata A. C. Sanders, T. B. Salvato 2001-3-30 23860 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon west of junction of Av. Pina Colada 366 Comment
  POM13592  Crassula solieri P. A. Munz 1922-4-29 5076 Riverside 0.5 mile south of Lake Elsinore. 381 Comment
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Apr 23 2011
  SEINET5357774  Cressa truxillensis H. M. Hall 1897-5-15 535 Riverside Perris Comment
  RSA0104697  Crossosoma bigelovii Duncan S. Bell, Rachel Darney-Lane, Evan Meyer 2015-2-25 7758 Riverside Santa Rosa Mountains; in Agua Alta Canyon to the north of Martinez Canyon, approximately 5.5 air miles southeast of the summit of Martinez Mountain. 440 Comment
  RSA124432  Crossosoma bigelovii Percy C. Everett, E. K. Balls 1958-5-4 23080 Riverside Morongo Pass, 7.6 mi. N along road to 29 Palms from U.S. Hwy 60/70. 671 Comment
  OBI75912  Croton californicus James M. Andre, G. L. Clifton 2011-2-22 17471 Riverside Coachella valley; just S of I-10 at Amtrak Train station parking, just W of N Indian Cyn Dr 186 Comment
  SD236275  Croton californicus A. C. Sanders, Mike Misenhelter 2008-6-10 35447 Riverside San Bernardino Valley: Glen Avon, San Sevaine Wash south of Hwy 60 and of San Sevaine Way, east of concrete channel. 231 Comment
  UC63984  Croton californicus L. D. Copeland May 1904 Riverside Palm Springs Colorado Desert Comment
  UC868668  Croton californicus I. W. Clokey 1935-4-16 6726 Riverside e Mecca (along road) 200 Comment
  UCR35106  Croton californicus L. B. Ziegler 1966-10-17 102 Riverside San Jacinto Valley-on Soboba Indian Reservation 518 Comment
  SEINET9253118 Image available Croton californicus Hugh Harvey 1940-2-16 M 1117 Riverside Morongo Reservation. 579 Comment
  RSA38278  Croton californicus var. tenuis P. A. Munz 1946-10-18 11561 Riverside Round-top hill northwest of Aguanga. 793 Comment
  CHSC143  Cryptantha angustifolia R. Baker 1935-4-15 Riverside Thermal. Comment
  RSA692206  Cryptantha angustifolia Scott D. White, Michael Honer 2003-5-14 9283 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (= Superior ) Gypsum Mine. 76 Comment
  SEINET8666059 Image available Cryptantha angustifolia David Silverman, A. C. Sanders 2010-3-23 7818 Riverside Sonoran (Colorado) Desert; Chuckwalla Valley, dunes at SSE tip of Palen Lake, 1.5 km SW of Palen Dunes Dr., 3.2 km N of I-10 and 8 km ESE of Sidewinder Well 130 Comment
  RSA784718  Cryptantha barbigera Duncan S. Bell 2012-3-18 3205 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
  SBBG81634  Cryptantha barbigera S. A. Junak 1983-3-23 1615 Riverside Jefferson Rd, across from entrance to Cahuilla Lake County Park, S of Indio Comment
  UC218093  Cryptantha barbigera P. A. Munz, D. Keck 1922-4-9 4757 Riverside near Mecca; Shavers Well 76 Comment
  UCR182321  Cryptantha barbigera Mitch Provance 2003-4-18 6604 Riverside San Bernardino Valley, Riverside, Santa Ana River Wash, just under and NE of the Market St. Bridge 244 Comment
  SD124126  Cryptantha barbigera var. fergusoniae Robert F. Thorne, Fosberg,Sachet and Herbst 1983-4-23 55418 Riverside San Bernardino Mountains, mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge in sandy wash east of bridge 409 Comment
  UCR183172  Cryptantha corollata Mitch Provance 2003-5-5 4417 Riverside La Sierra Hills, Norco, NW side of the La Sierra Hills, east of the end of Rushmore Dr. 305 Comment
  RSA0079094  Cryptantha cycloptera J. Andre, T. La Doux 2010-2-28 12559 Riverside Lower Colorado River Valley; along Hwy 94 approx. 25 miles north of Blythe, on east side of Big Maria Mountains. 83 Comment
  SBBG6254  Cryptantha decipiens H. and M. Dearing 1942-2-6 4800 Riverside near Cathedral City Comment
  SEINET1909885  Cryptantha dumetorum A. S. Sanders, K. C. Rose 1995-1 16384 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert: Coachella Valley; S of Mission Creek and W of Hwy 62 (Desert Hot Springs 7.5' Q.) 518 Comment
  SEINET4565900  Cryptantha dumetorum Duncan S. Bell 2010-4-2 700 Riverside Sonoran (Colorado) Desert; Arica Mountains: along jagged ridgeline of mountain range; in the Palen/McCoy wilderness; on a sand ramp located just below the ridgeline on the eastern side that was trapped between the ridgeline and the steep narrow rocky canyons below it 595 Comment
  RSA79575  Cryptantha holoptera F. W. Peirson 1927-4-12 7162 Riverside In Painted Canyon near Mecca. Comment
  UC573068  Cryptantha holoptera H. L. Mason 1928-3-10 4232 Riverside Hidden Springs Canyon Coachella Mountains Comment
  RSA744305  Cryptantha intermedia Michael Wall 2009-3-27 499 -D Riverside Bautista Creek east of Hemet off Bautista Canyon Rd. ca. 8 miles SE of jct. with Fairview Ave. 754 Comment
  RSA778140  Cryptantha intermedia J. Andre 2011-2-2 16213 Riverside Coachella Valley; west of Palm Springs along Hwy. 111 (south side) at base of San Jacinto Mts. at Windy Point, approx. 5.5 miles from Jct. with I-10 259 Comment
  SD148208  Cryptantha intermedia A. C. Sanders 2001-5-3 24081 Riverside Hemet, southeast corner of State Street at Gibbel,at east end of Diamond Valley. 494 Comment
  UCR156096  Cryptantha intermedia T. B. Salvato, Kent Beaman 2005-5-16 801 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
  UCR162925  Cryptantha intermedia B. G. Pitzer, Stu Hemstreet 1992-5-21 1935 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
  UCR165395  Cryptantha intermedia A. C. Sanders 2005-4-21 29576 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UCR251995  Cryptantha intermedia A. C. Sanders, T. B. Salvato 2014-7-2 41166 Riverside Peninsular Range; San Jacinto Mtns., Fobes Canyon, c. 1/2 mile south of Fobes Ranch along Fobes Ranch Rd. 1555 Comment
  RSA0075627  Cryptantha intermedia var. johnstonii P. H. Raven 1959-4-23 14020 Riverside 4.1 miles west of Dripping Springs. Comment
  HSC82900  Cryptantha maritima A. C. Sanders, Pitzer, Charlton, Kniffen 1986-3-3 6121 Riverside Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the S 489 Comment
  JOTR29433  Cryptantha maritima La Doux, Tasha, M. Bell, B. Truesdell 2006-3-22 1367 Riverside Joshua Tree National Park. East Wide canyon 499 Comment
  POM126312  Cryptantha maritima T. Craig 1927-4-2 13 Riverside Hidden Springs Canyon. Comment
  POM147640  Cryptantha maritima F. M. Reed 1927-3-19 5434 Riverside Dos Palmas Springs north of Salton Sea Comment
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Apr 6 2011
  POM369551  Cryptantha maritima E. S. Spalding 1926-2-13 s.n. Riverside Colorado Desert. Calif. Painted Canon. Comment
  POM48530  Cryptantha maritima F. M. Reed 1925-3-17 4936 Riverside Tahquitz Canyon - Palm Springs. Comment
  RSA0123175  Cryptantha maritima Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9064 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
  SBBG37502  Cryptantha maritima R. N. Muller, S. Lindsey 1967-5-11 Riverside 1.9 mi S on rd to top of Box Springs Mtns from its jct with Pigeon Pass Rd Comment
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Mar 23 2014
  UCR241801  Cryptantha maritima A. C. Sanders, Ann Howald 2013-2-28 40564 Riverside Sonoran (Colorado) Desert, Bradshaw Trail, 3.4 miles west of Hwy 78, 11 km SW (250 deg. ) of Ripley 114 Comment
  VVC2459  Cryptantha maritima var. pilosa Tim Thomas 2013-3-18 5941 Riverside Sonoran Desert, 10 miles WSW of Blythe NE of Mule Mtns. 116 Comment
  RSA517814  Cryptantha micrantha Steve Boyd, Orlando Mistretta 1986-3-13 1429 Riverside Palen Mountains; NE of Desert Center, jct. of Parker Dam Rd. and Palen Rd. (road going through pas between Palen and Granite Ranges). 244 Comment
  RSA741175  Cryptantha micrantha var. lepida Scott D. White, Justin M. Wood 2008-6-18 12204 Riverside Hiking trail from K flat to Apple Canyon Rd. 1341 Comment
  RSA792627  Cryptantha micrantha var. lepida R. F. Thorne 1995-3-29 63025 Riverside White Water Canyon 600 Comment
  UCR138583  Cryptantha micrantha var. micrantha Steve Boyd, Orlando Mistretta 1986-3-13 1429 Riverside Sonoran (Colorado) Desert, Palen Mtns: NE of Desert Center, junction of Parker Dam Road and 'Palen Road' (road going through pass between Palen and Granite Ranges) 366 Comment
  SD247355  Cryptantha microstachys A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35583 Riverside San Jacinto Mountains: Coldwater Creek watershed, ca. 1.25 miles ENE of Mountain Center, nameless tributary to Coldwater Creek, north of Johnson Meadow, above mapped spring. 1524 Comment
  UCR241817  Cryptantha microstachys A. C. Sanders, Timothy W. Chumley 2013-4-2 40749 Riverside Peninsular Range, Temescal Canyon between Horsethief Canyon Rd. and Hostettler Rd., above I-15 Fwy, SE of Corona (Lee) Lake 396 Comment
  UCR91398  Cryptantha microstachys Scott D. White 1995-4-5 2717 Riverside Moreno Valley, Base of slope in 'Badlands', off [Moreno-Redlands] Blvd 640 Comment
  UCR216254  Cryptantha muricata Oleg Pryadko 2008-5-2 050 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
  UCR241240  Cryptantha muricata Tracy Tennant, Jeffrey Ross 1998-6-23 MOR- 504 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper end of Hathaway Canyon at Burro Flat 1113 Comment
  HSC3583  Cryptantha muricata var. jonesii C. L. Hitchcock 1966-3-15 24157 Riverside 1 mi. E of Glen Ivy Hot Springs Comment
  RSA0079433  Cryptantha muricata var. jonesii C. P. Cowan 1978-4-25 1270 Riverside 5.1 miles (8.1 km) west on Hwy. 74 from jct. with 243, approaching Hemet. San Jacinto Mts. Whittaker transect no. W-228. 1370 Comment
  RSA0079019  Cryptantha pterocarya var. cycloptera Thomas Stoughton, Chrsiti Gabriel, Stephanie Rockwood 2011-3-30 903 Riverside East Mojave Desert region: McCoy Wash, east side of McCoy Mountains, pavement plain, approximately 7 miles north of I-10. 290 Comment
  UCR214870  Cryptantha pterocarya var. stenoloba A. C. Sanders 2010-3-15 37401 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
  RSA0014935  Cryptantha simulans LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6151 Riverside Along road (5S24). End of Marion Ridge road, south of the community of Pine Cove. Ridge running south down to Idyllwild school of performing arts, west of Strawberry Valley. 1799 Comment
  UCR116778  Cucurbita foetidissima A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-7 24169 Riverside Perris-Aguanga Basin region, S of Hemet, E end of Diamond Valley, along Gibbel Rd. 0.5-0.75 mi. east of State St., between Silver Dew Dr. and Morse Girard St., slopes and wash below the mouth of Avery Canyon 549 Comment
  RSA101225  Cuscuta californica David B. Dunn 1947-7-12 2971 Riverside Pushawalla Canyon, Indio Hills. About 1/4 mile above the palms Comment
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May 24 2012
  RSA545270  Cuscuta californica R. F. Thorne 1967-12 41891 Riverside Palm desert Comment
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Jun 16 2013
  POM97306  Cuscuta californica P. A. Munz 1925-5-20 9846 Riverside Aguanga Valley. Comment
  CDA39908  Cuscuta californica var. papillosa E. H. Asher 1958-6-9 509 -58 Riverside Rancho Mirage. 0 Comment
  SD260939  Cuscuta californica var. papillosa Mitch Provance 2012-8-1 812 03 Riverside Colorado Desert: Thousand Palms Canyon Road, A+- 2/3 of the way up into the canyon. 139 Comment
  RSA409732  Cuscuta ceanothi Albert J. Perkins 1916-9-9 s.n. Riverside Between Idyllwild and Keen Camp Comment
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Aug 17 2011
  UCR113852  Cuscuta pentagona Mitch Provance, A. C. Sanders 2000-7-4 2105 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  UCR207985  Cycloloma atriplicifolium L. C. Wheeler 1932-7-9 938 Riverside Santa Ana River at Chino Creek, (El Rincon) Corona 152 Comment
  RSA605744  Cyclospermum leptophyllum A. C. Sanders, G. Helmkamp 1996-3-17 17994 Riverside Coachella Valley: Rancho Mirage, intersection of Dinah Shore Dr. and Duval Dr., at Cathedral City limits, 2 mi. E. of Date Palm Dr. and 2 mi. S of Ramon Rd. 91 Comment
  JOTR35427  Cylindropuntia chuckwallensis Harding, Mitzi, C. Barrows, K. Callahan, J. Hoines, M. Wheeler 2013-4-11 130 Riverside Joshua Tree National Park. Eagle Mountains; Eagle Mountain peak 1630 Comment
  RSA0031144  Cylindropuntia chuckwallensis Marc Baker, Michelle Cloud-Hughes, Glenn Rink, Dina Robertson, Neal Kramer 2011-5-1 17305 Riverside Chuckwalla Mountains, 62km WSW of Blythe, 1km west of Chuckwalla Spring. UTM datum in NAD83. Lat-Long datum in WGS84. 600 Comment
  SEINET5624453 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2012-3-25 17525 .4 Riverside Northeast end of Chuckwalla Mountains, 11km SSE of Desert Center, 70km west of Blythe, two-track branching south from Corn Spring Road, 1.1 km W of Corn Spring Campground, 400m south of Corn Springs Wash; Pilot Mountain 1.5' USGS topographic quadrangle 527 Comment
  SEINET9037432 Image available Cylindropuntia ganderi var. ganderi M. A. Baker 2015-1 18385 .2 Riverside San Jacinto Mountains, 25km SSE of central Palm Springs, 800m WSW of Sugarloaf Mountain 1236 Comment
  UCR63622  Cymbalaria muralis B. G. Pitzer 1990-8-5 1478 Riverside University of California / Riverside Botanic Garden, near the border between grid cells F-6 and G-6. Growing out of cracks of granite on the SE side of the trail, about 50 ft west of the main trail up Alder Canyon 396 Comment
  JEPS12319  Cymopterus panamintensis var. acutifolius Marjorie D. Clary 1932-4-10 653 Riverside Eagle Mountains Comment
  SEINET3926489  Cynodon dactylon Faulkner 1978-3-21 348 Riverside 9 miles N of Blythe, Hwy 95, Saline flats.; 0 152 Comment
  UCR92728  Cyperus difformis A. C. Sanders 1994-7-26 15150 Riverside Santa Ana River at the Mission Blvd/7th street Bridge, W foot of Mt. Rubidoux 240 Comment
  UCR92356  Cyperus eragrostis Scott D. White, S. Ogg 1994-10-17 2475 Riverside Temecula Valley, Murrieta Creek, 2000 ft. south of Winchester Road bridge (Banana Avenue). 311 Comment
  RSA502523  Cyperus involucratus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3578 Riverside Vail Lake area, along Arroyo Seco drainage from jtn. with Kolb Creek, S to w/in 1/4 mi Hwy 79. 457 Comment
  CDA20620  Cyperus rotundus K. E. Hoffmaster July 1958 s.n. Riverside Southern California; Indio. 0 Comment
  SD227680  Cyperus squarrosus A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22233 Riverside San Bernardino Mtns.: Morongo Indian Reservation, lower Millard Canyon 840 Comment
  JEPS35182  Cystopteris fragilis Carl V. Meyer 1928-7-26 535 Riverside Deer Springs; San Jacinto Mt. 2651 Comment
  RSA607912  Cystopteris fragilis L. C. Wheeler 1961-6-20 7887 Riverside West fork of Tahquitz Creek. 2378 Comment
  RSA0030698  Dalea mollis Jim Andre 2013-3-27 24799 Riverside Rice Valley; east side of Arica Mountains, along Rice-Midland Rd, 2.2 mi. south of Rice (Hwy 62). 242 Comment
  CDA26963  Dalea mollissima G. D. Barbe 1978-5-2 2370 Riverside Twenty-nine Palms/Mecca exit from eastbound I-10, Cottonwood Springs Road, east of Indio. 0 Comment
  UCR114118  Dalea mollissima B. G. Pitzer, J. Ross 1998-3-8 3613 Riverside Sonoran (Colorado) Desert, N-facing bajada on south side of Hayfield Lake, between lakebed and Hwy I-10 427 Comment
  UCR52009  Dalea mollissima Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2167 Riverside Sonoran (Colorado) Desert, Palen Pass at the N end of the Palen Mountains 500 Comment
  CLARK-A1528-2772  Dalea schottii John C. Roos 1966-5-2 Riverside Indio Hills Comment
  CLARK-A1656-654  Dalea schottii Lois Ann Scott 1978-4-20 Riverside Palm Springs 152 Comment
  CAS-BOT-BC283037  Dasyochloa pulchella Carl B. Wolf 1932-4-27 2995 Riverside 14 mi. east of Mecca on Blythe Road, E. of Shavers Well, Colorado Desert 152 Comment
  RSA91543  Dasyochloa pulchella F. W. Peirson 1920-2-16 1546 Riverside South of Palm Springs, arm of Colorado Desert Comment
  OBI45072  Datisca glomerata Robert F. Thorne, C. W. Tilforth, L. DeBuhr, and E. Lathrop 1975-8-29 47299 Riverside Cleveland Natl Forest Comment
  POM6767  Datisca glomerata P. A. Munz 1919-5-9 2730 Riverside Tahquitz Canyon 229 Comment
  UCSB55270  Datisca glomerata Thorne, Robert; Boyd, Steve; Lathrop, Earl 1985-7-18 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: along Cole Canyon 353 Comment
  CHSC116490  Datisca glomerata R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49547 Riverside Santa Ana Mountains: along Ortega Highway (74), about 3 miles south-southwest of El Cariso, near junction of Decker and Morrell Canyons. Comment
  UCR167369  Datura discolor 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
  UC68894  Deinandra kelloggii H. M. Hall 1905-5-1 6239 Riverside vicinity of Riverside 365 Comment
  RSA674653  Deinandra mohavensis Scott D. White 2000-8-22 8123 Riverside Gibbel Flat in the Santa Rosa Hills. 610 Comment
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Dec 16 2012
  SD211549  Deinandra mohavensis Justin M. Wood, Scott D. White and Brandy Ulrich 2008-7-15 23 Riverside Aguanga Basin / San Jacinto Mountain foothills: West of Anza Valley, adjacent to Cave Rock Road. Approximately 1/4 mile East of Cahuilla Indian Reservation. (Anza) 1214 Comment
  SD232184  Deinandra mohavensis V. Soza, Steve Boyd, Neil Gilbert 2000-12-6 1067 b Riverside Peninsular Ranges, San Jacintio Mountains region: McCall Memorial Park Campground. 1310 Comment
  RSA0098342  Deinandra paniculata Marc A. Baker, Danny Cuellar, Chris Taylor, Paul Roberge, Cecile Shohet, Youssef Atallah 2015-7-3 18378 Riverside 1.8 km south of San Timoteo Wash, 15 km SE of central San Bernardino, 35m south of the San Bernardino County line. 491 Comment
  SBBG118794  Deinandra paniculata S. D. White 1999-10-7 7625 Riverside Menifee/Sun City area: S of McColl Ave and E of I-215 freeway; T5S R3W S27 440 Comment
  RSA0018984  Delphinium parishii subsp. parishii Mary F. Spencer 1920-3-27 1475 Riverside Near Palm Springs. Colorado Desert. 152 Comment
  UCR89801  Delphinium parryi Scott D. White, S. J. Myers, S. Ogg Wilcox 1995-6-16 3343 Riverside Peninsular Range; Santa Ana Mns., Proposed pipeline route; Lake Elsinore Pumped Storage Hydroeletric Project. west of Lake Elsinore, SE of Hwy 74 915 Comment
  RSA586328  Delphinium parryi subsp. parryi D. L. Banks, S. D. Boyd 1995-5-3 193 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
  UCR138886  Delphinium parryi subsp. parryi D. L. Banks 1997-4-5 1697 Riverside Agua Tibia Mtns., NW Palomar Mtns: Agua Tibia Wilderness Area. south of Dorland Mountain, just east of the Wilderness Area boundary with the Pechanga Indian Reservation, along a tributary of the N fork of Pechanga Creek 762 Comment
  RSA772863  Dendromecon rigida Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4815 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 2-3 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.02559, W116.69098 and N34.02135 and W116.68712. 915 Comment
  SEINET3208886  Dendromecon rigida G. Goodwin 2012-6-14 3441 Riverside San Jacinto Mountains, 6 miles south of Banning at the junction of highway 243 and the road to Mt. Edna 1070 Comment
  UCR16439  Dendromecon rigida Frederick Neill 1977-5-28 52803 Riverside Santa Ana Mountains, 3.25 mi up Skyline Dr. from Corona Comment
  UCR167976  Dendromecon rigida T. B. Salvato, John F. Green 2004-5-27 656 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
  UCR16994  Dendromecon rigida Eric Fisher 1979-4-20 s.n. Riverside 9 mi west of Aguanga on Hwy 79; southern oak woodland [near Dripping Spring] 549 Comment
  RSA433551  Dendromecon rigida subsp. rigida N. C. Cooper 1944-6-17 1437 Riverside San Jacinto Mountain. West side. 1372 Comment
  RSA557346  Deschampsia danthonioides Julie Greene 1993-5-12 1305 Riverside San Jacinto Wildlife Area; south of gated W-E road, east of Davis Road. 433 Comment
  UCD63235  Deschampsia danthonioides var. gracilis Alan A. Beetle 1946-4-19 4697 Riverside Edgemont, 5 miles southeast of Riverside. Comment
  RSA433554  Dicentra chrysantha Gale Sphon 1959-5-2 318 Riverside Horsethief Canyon, Elsinore Mountains. Comment
  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
  IRVC52  Dichelostemma capitatum subsp. capitatum D. DeVault 1965-4-24 HS 0098 Riverside Upper San Juan Creek Camp; Ortega Highway. Santa Ana Mountains Comment
  RSA367459  Dichelostemma capitatum subsp. capitatum Gale Sphon 1955-5-7 s.n. Riverside Horsethief Canyon, Santa Ana Mtns., Comment
  SDSU12268  Dichelostemma capitatum subsp. capitatum Jeremy Mass, Ryan Jacobsen 2000-4-19 12 Riverside Along edge of road near Stone Creek, close to Southside Field Station, Santa Margarita Ecological Reserve (SDSU). 222 Comment
  RSA70160  Dichelostemma capitatum subsp. pauciflorum F. W. Peirson 1922-4-9 2903 Riverside Andreas Canyon near Palm Springs, Colorado Desert, 335 Comment
  SBBG34737  Dicoria canescens T. L. Secrest 1950-3-12 Riverside near Indio Comment
  UC1177917  Dicoria canescens S. Galen Smith 1948-1-1 344 Riverside 10 mi n Coachella Comment
  RSA209539  Dicoria canescens subsp. hispidula C. W. Tilforth 1969-11-23 239 Riverside 3 miles W of Desert Hot Springs. Comment
  UCD64071  Digitaria sanguinalis Scott D. White; Brian Leatherman 2004-10-7 10768 Riverside Perris Basin: City of Perris. Immediately east of the I-215 Freeway, at Watson Road. 434 Comment
  SJSU1769  Diplacus aurantiacus G. B. Youngberg 1956-3-27 181 Riverside hills near La Sierra College Arlington 251 Comment
  CAS-BOT-BC150926  Diplacus bigelovii var. bigelovii Ira L. Wiggins 1937-3-9 8763 Riverside 5 miles west of Shaver's Well Comment
  RSA0019287  Diplacus brevipes Christopher Davidson 1975-6-16 2812 Riverside 5.4 miles N of Alandale Station on road R1 from Idyllwild to Banning. 1652 Comment
  RSA0019405  Diplacus fremontii Carl B. Wolf 1932-8-6 3996 Riverside 2.9 mi From Idyllwild on the road to Hemet. 1220 Comment
  CAS-BOT-BC150673  Diplacus longiflorus P. C. Everett 1945-6-27 11503 Riverside Santa Ana Mts., Indian Canyon, Indian Canyon Truck Trail 609 Comment
  RSA0018424  Diplacus longiflorus var. calycinus N. C. Cooper 1944-6-16 1428 Riverside San Jacinto Mtns. Pine Cove. 1524 Comment
  RSA668431  Ditaxis lanceolata S. Granger 1979-4-12 s.n. Riverside Chuckawalla Mountains. 610 Comment
  RSA721887  Ditaxis lanceolata J. Mark Porter, Orlando Mistretta 2003-6-5 13616 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 southeast. 412 Comment
  JOTR34372  Ditaxis neomexicana Andre, Jim 2012-4-16 20889 Riverside Joshua Tree National Park. Along Cottonwood Spr. Rd. 1 mile north of South Entrance 583 Comment
  RSA792474  Ditaxis neomexicana Justin M. Wood, Dustin Ray 2011-4-28 3834 Riverside Sonoran Desert: Chuckwalla Valley: 6.5 miles north of Desert Center on Kaiser Road, +/- 0.4 miles northeast of bend in road. 202 Comment
  RSA793606  Ditaxis neomexicana Duncan S. Bell, Aaron Sedgwick 2012-9-13 4206 B Riverside The Mecca Hills; along what was left of Box Canyon Road after having been buried by a flash flood from a large summer storm, approximately 5 air miles northeast of the junction of Box Canyon Road and the Coachella Canal, or approximately 1.25 air miles southwest of Shavers Well. 240 Comment
  SD109126  Ditaxis neomexicana Grady L. Webster, R. Hildreth 1966-12-9 7456 Riverside Joshua Tree National Monument, NW end of Pinto Basin, 2.8 miles NW of Cholla Gardens 790 Comment
  UCR74376  Ditaxis neomexicana Theo Glenn 1991-5-1 91- 47 Riverside Sonoran (Colorado) Desert, McCoy Mts, NW of Blythe 240 Comment
  CAS-BOT-BC43645  Dithyrea californica Ynez Whilton Winblad 1937-3-22 s.n. Riverside East slope of Chocolate Mountains. Comment
  RSA530743  Dithyrea californica M. B. Dunkle 1934-2-25 3845 Riverside Cathedral Canyon. Colorado Desert. 152 Comment
  POM96160  Dithyrea californica Marcus E. Jones 1926-2-15 s.n. Riverside Near Indio. Comment
  SEINET11973369  Dodecatheon clevelandii H. M. Hall 1902-1 2963 Riverside vicinity of Riverside, in the Sonoran Zone 366 Comment
  UC1537155  Dodecatheon clevelandii subsp. clevelandii Gordon H. True Jr. 1935-3-18 128 Riverside Pigeon Pass 457 Comment
  CAS-BOT-BC129970  Dodecatheon redolens H. M. Hall 1901-7-1 2335 Riverside Vicinity of Deer Springs 2743 Comment
  UCR113630  Downingia cuspidata June Latting 1978-6-4 s.n. Riverside Santa Ana Mtns., Santa Rosa Plateau, Mesa de Colorado 640 Comment
  SD138002  Dryopteris arguta Darin L. Banks, Steve Boyd 1995-2-16 51 Riverside Cleveland National Forest, Agua Tibia Wilderness Area; north slope AguaTibia Mtn., south of Dripping Springs Alcove, east of Woodchuck Trail Comment
  RSA638856  Dudleya lanceolata Valerie L. Soza, LeRoy Gross 1999-6-10 508 Riverside Santa Ana Mountains: Upper side of Indian Truck Trail, 2.5 miles from junction with Main Divide Motorway. 975 Comment
  RSA689552  Dudleya lanceolata Scott D. White, Michael Honer 2003-4-25 9121 Riverside San Bernardino Mountains: Whitewater Canyon, about midway between Bonnie Bell and Whitewater Trout Farm. West side of road, on alluvial fan adjacent steep east-facing mountain slope. 610 Comment
  UCR127557  Dudleya lanceolata A. C. Sanders, T. B. Salvato 2003-5-21 26788 Riverside Elsinore Valley, Wildomar, old ranch parcel SE of Wesley St. and SW of Laguna Rd., west of Orange St., NE of Palomar St. 402 Comment
  UCR174543  Dudleya lanceolata Jennifer H. Jones 2006-6-6 394 Riverside Peninsular Ranges; Santa Ana Mtns., Cleveland National Forest along Calif. Hwy 74; lower ele. part of San Juan Loop Trail, N of Upper San Juan Campground 518 Comment
  UCSB2522  Dudleya lanceolata White, Arthur 1960-5-14 Riverside 2.2 mi. S of Hwy. 70 and 99 on the road to Idyllwild; from Banning; 100 yds. to S of road Comment
  RSA635033  Dudleya multicaulis Valerie L. Soza, LeRoy Gross 1999-6-21 570 Riverside Santa Ana Mountains: Oak Flats, southwest of Serrano Spring. 731 Comment
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Sep 4 2018
  UCR5884  Dudleya multicaulis Charles Prentiss 1966-5-10 s.n. Riverside Santa Ana Canyon, 300 yards south of Riverside - Newport Freeway, 1 mi. east of Orange County line. Comment
  UCR78336  Dudleya multicaulis D. E. Bramlet 1993-5-5 2338 Riverside tributary to Olsen Canyon, c. 76m south of the canyon, and 90m east of the existing dirt road, c. 213m NE of the existing El Sobrante Landfill 375 Comment
  RSA192294  Dudleya pulverulenta H. A. Zuill 1966-7-17 294 Riverside on the De Luz rd SW of Murrieta Comment
  POM197996  Dudleya saxosa subsp. aloides Donald A. Johansen, Joseph A. Ewan 1932-4-10 7062 Riverside Warrens Ranch at Whitewater. Comment
  UC1015385  Dudleya saxosa subsp. aloides Reid Moran 1947-5-10 2181 Riverside 1 mi e Santa Rosa Summit (Palms-to-pines Hwy) 1371 Comment
  RSA0002526  Echeveria lanceolata var. composta W. L. Jepson 1903-8-6 2285 Riverside Spruce Canyon, San Jacinto Mt. 1311 Comment
  SEINET8059976 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-11 20 Riverside 3.6mi S of Inyo county line on Route 127. On west side of small hill on west side of road. 300 Comment
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Jun 5 2016
  SEINET8060012 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-8 10 Riverside 1/4mi down Hayfield Rd. south of I-10 500 Comment
  CAS-BOT-BC445578  Echinodorus berteroi S. B. Parish 1891-11-3 2264 Riverside Elsinore Comment
  POM148751  Echinodorus berteroi J. B. Feudge 1927-6-1 1621 Riverside Lake Mystic. Comment
  RSA336207  Elatine californica R. F. Thorne, M. Z. Thorne, W. Wisura 1978-5-21 51987 Riverside Santa Rosa Plateau: Mesa de Colorado. 609 Comment
  UCR207567  Eleocharis acicularis O. F. Clarke 2004-5-7 s.n. Riverside Peninsular Range; San Jacinto Valley, San Jacinto Wildlife Area 442 Comment
  UCR58486  Eleocharis montevidensis Jeri Hirshberg 1989-4-11 s.n. Riverside Santa Rosa Plateau, Santa Ana Mtns., S of town of Murrieta, NE of Mesa del Burro. Rocky creek bed below Guava-DeLuz Road, c. 1.5 mi SW of intersection w/ Hayes Avenue Comment
  UC839229  Eleocharis parishii Ivan Johnston 1917-4-4 Riverside Palm Canyon Southern California, Colorado Desert Comment
  CAS-BOT-BC221837  Eleusine indica J. C. Roos; E. C. Jaeger 1952-10-8 5899 Riverside Riverside 259 Comment
  SEINET3928897  Eleusine tristachya J. T. Columbus, S. Boyd 2003-8-16 4464 Riverside Valle Vista (just E of Hemet), along Fairview Ave. 0.9 rd. mi. S of jct. with Stetson Ave, E. side of road.; 0 600 Comment
  UCR201448  Elymus elymoides Scott D. White, Justin M. Wood 2008-6-5 12066 Riverside San Jacinto Mountains, Quinn Flat Meadow 1396 Comment
  UC38188  Elymus glaucus H. M. Hall Jun 1 1901-Jul 1 1901 2269 Riverside vicinity of Strawberry Valley San Jacinto Mountains 1584 Comment
  RSA586940  Elymus glaucus subsp. glaucus D. L. Banks, Steve Boyd 1995-5-17 469 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mtn., E of the Dripping Springs Alcove area W of the Dripping Springs Trail;, at the spring just inside the wilderness boundary in north-central, section 33. 731 Comment
  RSA599100  Elymus glaucus subsp. jepsonii V. W. Steinmann, D. L. Banks 1996-4-20 843 Riverside Agua Tibia Mountains, ca. 10 km east of Temecula, UC Emerson Preserve, ca. 0.5 km from main road along the East Trail, just northeast of the summer cottage., ca. 33?28'N, 117?02'W 450 Comment
  UCR213879  Elymus hispidus Scott D. White, Justin M. Wood 2008-6-16 12124 Riverside San Jacinto Mountains, Fobes Canyon, c. 1 mi up Fobes Ranch Road from Fobes Spring 1555 Comment
  RSA25342  Emmenanthe penduliflora C. L. Hitchcock 1940-4-1 5900 Riverside 1 mi. below Cottonwood Springs. Joshua Tree Nat. Monument. Comment
  UCR133664  Emmenanthe penduliflora Chet McGaugh 2003-5-10 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  JEPS34089  Encelia actoni W. L. Jepson 1928-4-25 12584 Riverside Cottonwood Springs Colorado Desert, Eagle Mts., Cottonwood Springs 731 Comment
  JEPS34095  Encelia actoni Marjorie D. Clary 1932-5-12 1904 Riverside Lost Horse Canyon north Colorado Desert, Little San Bernardino Mountains, Lost 1066 Comment
  RSA775808  Encelia actoni Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 888 Riverside Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon 915 Comment
  SD127538  Encelia actoni Reid Moran 1967-11-7 14645 Riverside 7 mi W Radec 399 Comment
  UC154553  Encelia actoni unknown 1904-5-1 302 Riverside Cabazon 579 Comment
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Mar 28 2015
  UCR176911  Encelia actoni Tracy Tennant 1998-6-18 s.n. Riverside San Jacinto Mtns., Bee Canyon, NE of Valle Vista 793 Comment
  UC895498  Encelia californica C. B. Clokey, I. W. Clokey and B. C. Templeton 1930-4-15 4737 Riverside Gavilan Peak 500 Comment
  SBBG52812  Encelia farinosa N. C. Cooper 1949-4-9 3325 Riverside Blythe 80 Comment
  SBBG99399  Encelia farinosa W. L. Halvorson 1977-3-8 77 -77 Riverside ca. 1 mi S of entrance to Joshua Tree Nat Monument Comment
  UCR256721  Encelia farinosa Duncan S. Bell 2011-12-30 3045 Riverside Sonoran (Colorado) Desert, Arica Mountains: southern section of the mountain range within the Palen/McCoy Wilderness area; c. 2 air miles southwest of Priests Well, or c. 7 air miles southwest of the ghost town of Rice 365 Comment
  POM312674  Encelia farinosa var. farinosa D. Taylor 1951-3-22 10 Riverside Near Midland, Maria Range. 457 Comment
  POM356692  Encelia farinosa var. farinosa Christopher Davidson 1979-4-4 7731 Riverside Orocopia Mountains, E of Box Canyon on Box Canyon Rd., 15.1 miles E of Mecca. Dirt road to the SE. 579 Comment
  POM4944  Encelia farinosa var. farinosa Robinson, Crocker s.n. Riverside Elsinore Region; along edge of lake Comment
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Mar 15 2014
  POM14367  Ephedra aspera Philip A. Munz, D. Keck 1922-4-9 4789 Riverside Vicinity of Corn Springs, Chuckwalla Mountains. 457 Comment
  SD229015  Ephedra aspera Dick Schwenkmeyer 2013-6-11 915 Riverside Carrizo Creek camp, approx. 1.5 north of highway 74 and Royal Carrizo Road intersection. 890 Comment
  SEINET909546  Ephedra aspera Andrew C. Sanders, P. MacKay, M. Jacobsmyer, C. Sanders, et al. 1995-1 15986 Riverside Colorado Desert: Orocopia Mtns., Maniobra Valley, 1.6-3 mi. S of frontage rd (old 60) along I-10, S to edge of BLM wilderness. 555 Comment
  LA6775  Ephedra californica LeRoy Abrams; 1903-4-6 3204 Riverside Palm Springs Comment
  RSA317187  Ephedra californica S. Carlquist 1984-5-22 15806 Riverside Between Palm Springs and Cabazon on Interstate Highway 10 from San Bernardino to Yuma. Comment
  RSA339644  Ephedra californica Robert F. Thorne, C. W. Tilforth 1980-5-28 54240 Riverside Along Whitewater River, ca. 3.2 miles N of Whitewater Post Office and Hwy 10. Comment
  RSA383871  Ephedra californica M. B. Dunkle 1932-3-25 2874 Riverside Cabazon, Colorado Desert. Comment
  RSA383874  Ephedra californica A. Menke 1955-5-22 s.n. Riverside Palm Springs Station. Comment
  CLARK-A1528-3342  Epilobium adenocaulon var. parishii John C. Roos 1952-4-23 5577 Riverside Box Springs Mountain 457 Comment
  UC1043025  Epilobium campestre John C. Roos 1952-5-14 5662 Riverside near Box Springs; Edgemont 487 Comment
  CAS-BOT-BC171732  Epilobium canum subsp. latifolium R. J. Kessler 1921-10-1 1921 Riverside San Jacinto Mts. Comment
  RSA72167  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-7-28 5012 Riverside Pine Flats Camp 1799 Comment
  SBBG60199  Epilobium ciliatum subsp. ciliatum M. Lewis 1947-8-26 3 Riverside Dark Cyn 1981 Comment
  RSA0103095  Epilobium glaberrimum subsp. glaberrimum Duncan S. Bell, Josh Brito, John Woodruff 2015-7-15 8545 Riverside Santa Rosa Mountains; south of Cactus Spring Trail; in Horsethief Creek. 1064 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
  CLARK-A1528-24  Equisetum arvense Ruth Cooper 1952-9-12 635 f Riverside Riverside Comment
  RSA639601  Equisetum arvense L. C. Wheeler 1932-7-9 926 Riverside Santa Ana River at Chino Creek 145 Comment
  UCR202585  Equisetum arvense Scott D. White, Justin M. Wood 2008-7-8 12373 Riverside San Jacinto Mountains, Hurkey Creek Watershed - Bonita Vista Road, c. 1/2 mi east and west of Hurkey Creek crossing 1537 Comment
  UCR515  Equisetum laevigatum Eugene Cardiff 1954-4-5 s.n. Riverside San Bernardino Valley Region, Santa Ana River, near Pedley 207 Comment
  UCR115142  Eragrostis cilianensis Mitch Provance 2000-10-28 2279 Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 290 Comment
  POM201787  Eragrostis mexicana subsp. virescens L. M. Booth 825 Riverside Hard roadside. Comment
  UC1100242  Eragrostis mexicana subsp. virescens Malcolm A. Nobs and S. Galen Smith 1948-9-3 487 Riverside 2 mi n Indio (Citrus grove); Imperial Valley Comment
  JEPS74000  Eragrostis pectinacea var. pectinacea S. B. Parish 1912-6-27 8101 Riverside Mecca Comment
  UC665865  Eremalche exilis Ira L. Wiggins 1941-3-27 9685 Riverside 8 mi. n.e. Desert Center; s. end Coxcomb Mts. Comment
  CLARK-A1656-624  Eremalche rotundifolia Lois Ann Scott 1978-4-10 Riverside Mecca 152 Comment
  SBBG99224  Eremalche rotundifolia W. L. Halvorson 1977-2-5 77 -16 Riverside near the jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SEINET12875649 Image available Eremogone ferrisiae Reid Moran 1968-1 15366 Riverside N slope 1 mi. W of summit, Santa Rosa Mtn. 2150 Comment
  UCSB26816  Eremogone macradenia Wilken, Dieter 1969-6-30 Riverside Santa Rosa Springs; Santa Rosa Mtns. 2377 Comment
  UC1931136  Eremogone macradenia var. macradenia Scott D. White, Justin Wood 2008-6-17 12182 Riverside San Jacinto Mountains: Garner Valley-Kenworthy Station (USFS). (Butterfly Peak). Comment
  CDA37645  Eremothera boothii subsp. desertorum M. S. Wasbauer 1960-3-26 Riverside Shaver s Summit. 0 Comment
  RSA0097953  Eriastrum densifolium subsp. mohavense Duncan S. Bell 2014-11-14 7720 Riverside Santa Rosa Mountains; in the Santa Rosa Wilderness area; west side of Martinez Mountain; collecting at Cactus Spring. 1292 Comment
  UCR202210  Eriastrum eremicum Peter L. Morrell, D. E. Krause 1995-5-1 460 Riverside Sonoran (Colorado) Desert, Coachella Valley, NW corner of Baristo Rd. and El Cielo Rd., near cargo entrance to Palm Springs Municipal Airport 123 Comment
  UCR20440  Eriastrum eremicum Carl Epling, H. Lewis 1941-5-2 s.n. Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mountains Comment
  OBI042652  Eriastrum eremicum subsp. eremicum D. Hoover 1986-4-7 774 Riverside Dry wash of the main canyon just below the BLM gate 1800 Comment
  RSA0120079  Eriastrum eremicum subsp. eremicum R. F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55433 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  SEINET3100713  Eriastrum harwoodii G. Rink, M. Honer, K. Christie 2012-3-19 11084 Riverside NW side of the Mule Mtns, ca 2 miles east of the prison 120 Comment
  SDSU3047  Eriastrum sapphirinum Thomas A. Zink 1971-6-1 Riverside Along Indian Canyon Road. about 1/4 mile west of junction woth Temescal Canyon Road. 366 Comment
  UCD118317  Eriastrum sapphirinum Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mountains, ca. 1 mile SE of town of Nuevo. 640 Comment
  UCR103902  Eriastrum sapphirinum B. G. Pitzer 1997-4-12 3124 Riverside Lakeview Mtns, Pulsar View Road, c. 1/4 mi. uphill from the base of the hills at the end of Warren Road (very short dirt road leading into hills). c. 1.3 mi. airline SW of Mt. Rudolph (measured from BM 'Nelson'). 549 Comment
  RSA0122960  Eriastrum sapphirinum subsp. dasyanthum Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mountains, ca. 1 mile SE of town of Nuevo. 640 Comment
  UCR59697  Eriastrum sapphirinum subsp. dasyanthum Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3533 Riverside Peninsular Ranges; Palomar Mountains region, Vail Lake area, hills just to SW of the dam 489 Comment
  RSA0122950  Eriastrum sapphirinum subsp. dasyanthum C. W. Tilforth 1969-7-24 213 Riverside About 5 mi. south of Hemet, east of County Highway R-3. Comment
  SD181418  Eriastrum sapphirinum subsp. sapphirinum Scott D. White 2000-8-5 8111 Riverside San Jacinto Mountains: Near Mountain Center. Unnamed ephemeral drainage (tributary to S Fork, San Jacinto River) (Idyllwild) 1402 Comment
  JEPS19180  Ericameria cooperi var. cooperi W. L. Jepson 1928-4-25 12642 Riverside White Tank Mohave Desert, White Tank 1371 Comment
  UC494685  Ericameria cuneata var. spathulata P. A. Munz 1932-10-16 12848 Riverside road Indio to Vandeventer Flat; Santa Rosa Mts. 1066 Comment
  CAS-BOT-BC287511  Ericameria linearifolia H. M. Hall 1899-5-1 1140 Riverside At Kenworthy Comment
  JEPS30388  Ericameria nauseosa var. bernardina William M. Klein 1960-8-22 1587 Riverside n of Idyllwild (along trail to Suicide Rock); San Jacinto Mts., Mt. San Jacinto, Suicide Rock Comment
  UCR201513  Erigeron breweri var. covillei Scott D. White, Justin M. Wood 2008-6-17 12176 Riverside San Jacinto Mountains, Garner Valley, USFS Kenworthy Station 1402 Comment
  UCR112325  Erigeron foliosus A. C. Sanders, Mitch Provance 1998-5-14 21849 Riverside Jurupa Mtns., Rattlesnake Mtn. (hill 1452m), Crestmore, above water tank west of Cedar Ave., above intersection of Andalusia and Malaga Streets 396 Comment
  UCSB26815  Erigeron foliosus Wilken, Dieter 1969-6-30 Riverside Santa Rosa Springs, Santa Rosa Mtns. 2377 Comment
  CAS-BOT-BC296234  Erigeron foliosus var. foliosus H. A. Zuill 1966-6-5 188 Riverside 1-2 miles SW Murrieta Comment
  CLARK-A1528-1144  Eriodictyon crassifolium Charles S. Papp 1941-5-10 813 Riverside San Jacinto Mountains Comment
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Jan 30 2016
  CLARK-A1656-639  Eriodictyon crassifolium Lois Ann Scott 1978-5-5 Riverside Snow Creek 381 Comment
  LA205603  Eriodictyon crassifolium Harlan Lewis; 1935-4-6 sn Riverside Snow Creek, Palm Springs 182 Comment
  RSA455024  Eriodictyon crassifolium H. de Forest 1933-4-17 17595 Riverside Chino Canyon, Colorado Desert. Comment
  UCSB5275  Eriodictyon crassifolium Nowell, J. 1958-5-18 Riverside 4 mi. from Banning on Banning-Idyllwild Road 609 Comment
  UCSB9448  Eriodictyon crassifolium Lloyd, Robert 1959-4-17 Riverside 3 miles south of West Corona on the Oak Flat Fire Road; Santa Ana Mt. Range; Pacific Ocean drainage area 335 Comment
  SEINET6328737  Eriogonum apiculatum Louis Wheeler 1945-10-7 6412 Riverside San Jacinto Mountains: divide between West Fork Snow Creek and North Fork San Jacinto River 2377 Comment
  UCR5710  Eriogonum apiculatum O. F. Clarke 1966-10-5 661005- 37 Riverside Peninsular Range; Santa Rosa Mtns., Santa Rosa Mountain Rd., first wooded canyon -- near University of California, Deep Canyon Desert Research Center 1829 Comment
  CDA23629  Eriogonum baileyi Mike Lahti 2008-8-26 PDR# 1473313 Riverside Hemet, 41801 East Benton Rd., 0.5 miles E of Sage Rd. 0 Comment
  CAS-BOT-BC242785  Eriogonum davidsonii James L. Reveal; Caroline G. Reveal 1972-8-9 2852 Riverside San Jacinto Mountains, along California Highway 74 at the turnoff to Idyllwild Mile-Hi Trap Club, about 1 mile west of the junction with Highway 243 Comment
  RSA242148  Eriogonum davidsonii James L. Reveal, Caroline G. Reveal 1972-8-9 2852 Riverside Along California Highway 74 at the turnoff to Idyllwild Mile-Hi Trap Club, about 1 mile west of the junction with Highway 243. Comment
  RSA393468  Eriogonum davidsonii Kessler 1921-09 s.n. Riverside Mt. San Jacinto. Comment
  RSA393472  Eriogonum davidsonii H. de Forest 1932-8-28 s.n. Riverside W side San Jacinto Valley. Comment
  SD95204  Eriogonum davidsonii G. L. Webster, R. Hildreth 1966-12-9 7452 Riverside Joshua Tree National Mon., parkland at Split Rock 1310 Comment
  RSA554248  Eriogonum deflexum var. deflexum Theo Glenn 1991-5-15 91134 Riverside Colorado Desert Little Maria Mountains, NW of Blythe. 390 Comment
  SEINET6418387  Eriogonum fasciculatum Ken Zysk 1971-4-27 P 140 Riverside Chaffey College 457 Comment
  SEINET6418379  Eriogonum fasciculatum var. foliolosum T. Reeves 1978-5-13 6894 Riverside San Jacinto Mtns. Foothills SE of Banning. Access via Westward Ave. 671 Comment
  LA206785  Eriogonum fasciculatum var. polifolium A. M. Johnson; 1932-8-18 4133 Riverside San Jacinto Mountains, along road, down Banning side Comment
  LA25970  Eriogonum fasciculatum var. polifolium H. Lewis; 1941-8-1 sn Riverside San Jacinto Mountains, Herkey Creek Camp Ground, near Keen Camp Comment
  POM6443  Eriogonum fasciculatum var. polifolium P. A. Munz 1919-5-7 2745 Riverside Palm Springs. 198 Comment
  RSA525269  Eriogonum fasciculatum var. polifolium Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4582 Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 579 Comment
  RSA739339  Eriogonum fasciculatum var. polifolium Keith E. Hoffmaster 1936-4-26 714 Riverside Box Springs grade. Comment
  UC1032089  Eriogonum fasciculatum var. polifolium A. Lewis 1933-1-26 175 F Riverside Cactus Valley San Jacinto Quadrangle, Cactus Valley Comment
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Mar 20 2011
  UC85999  Eriogonum fasciculatum var. polifolium M. M. Miles April 1891 Riverside San Jacinto Comment
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Oct 27 2011
  CAS-BOT-BC253497  Eriogonum gracile James L. Reveal; C. Rose Broome 1987-6-27 6614 Riverside Along Morris Ranch Road, 1.9 mile northeast of California Highway 74 and about 1.5 mile northeast of Kenworthy Guard Statoin, about 8 airline miles southeast of Mountain Center, San Jacinto Mountains 1584 Comment
  SBBG28192  Eriogonum gracile I. W. Clokey 1935-8-21 6593 Riverside Hemet Lake 1300 Comment
  UCR133320  Eriogonum gracile 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
  UCR274187  Eriogonum gracile T. B. Salvato, Gregg Miller 2005-6-7 1441 Riverside Peninsular Range, Gavilan Hills, along Hill Top Drive, 1.7 mi NE ( 54.8 deg. ) of the Lake Street junction with Hwy I-15, and 1.8 miles west of El Toro Road, near benchmark 2349 695 Comment
  POM153369  Eriogonum gracile var. gracile P. A. Munz, I. M. Johnston 1928-9-12 11256 Riverside Temescal Canyon. Comment
  RSA0095206  Eriogonum gracile var. gracile Duncan S. Bell, Sarah DeGroot, Mark Porter 2015-10-19 8716 Riverside Whitewater Canyon, near junction of the Pacific Crest Trail and the trail down to the ranger station. 700 Comment
  RSA575907  Eriogonum gracile var. gracile Steve Boyd 1994-10-14 8382 Riverside Southern Santa Ana Mts., San Mateo Canyon Wilderness Area of the Cleveland Nat'l Forest. San Mateo Canyon, sandy benches in canyon bottoms at the confluence with Bluewater Canyon. 329 Comment
  RSA305626  Eriogonum gracile var. incultum C. W. Tilforth, Walter Wisura 1979-5-11 1913 Riverside 0.3 mi. west of Hgwy 74 on Thomas Mountain Rd., ca. 1 mile south of Lake Hemet, Garner Valley. Comment
  RSA90136  Eriogonum gracile var. incultum E. K. Balls, Percy C. Everett 1953-8-19 18529 Riverside On Hwy from Banning to Idyllwild, SE from Lake Fullmore. 1677 Comment
  UC535088  Eriogonum inflatum Susan G. Stokes 1933-4-9 52 Riverside near Banning Comment
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Dec 17 2016
  UCSB1447  Eriogonum inflatum Van Leeuwen, Henry 1957-4-12 Riverside Whitewater Canyon; 1 mile from US 60 Comment
  UC64567  Eriogonum inflatum var. deflatum H. M. Hall May 17 1901-Jun 1 1901 1834 Riverside e base of San Jacinto Mt. San Jacinto Mt. 609 Comment
  UC849551  Eriogonum inflatum var. inflatum I. W. Clokey, B. C. Templeton 1930-4-9 4683 Riverside n Palm Springs; Colorado Desert 170 Comment
  RSA701044  Eriogonum nidularium Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11289 Riverside Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. 570 Comment
  LA206959  Eriogonum nudum var. pauciflorum W. Pequegnat; 1937-9-3 129 Riverside Santa Ana Mountains, Bedford Rd 1645 Comment
  CAS-BOT-BC266940  Eriogonum parishii P. A. Munz; E. K. Balls 1952-8-21 17983 Riverside Road, Vandeventer Flat to Santa Rosa Peak 2072 Comment
  UCR104041  Eriogonum pusillum George K. Helmkamp 1998-4-3 3066 Riverside Sonoran (Colorado) Desert, Whitewater River, bordering the north side of Hwy I-10; E side of the river 396 Comment
  RSA650353  Eriogonum reniforme William Gilbert 1969-5-24 s.n. Riverside Hwy. 74, Hwy. marker #88 13. Comment
  RSA517811  Eriogonum thomasii Steve Boyd, Orlando Mistretta 1986-3-13 1416 Riverside Palen Mountains: NE of Desert Center, jct of Parker Dam Rd and 'Palen Rd' (rd. going through pass between Palen and Granite Ranges). 183 Comment
  UCR163080  Eriogonum thomasii B. G. Pitzer 2000-5-7 4141 Riverside Sonoran (Colorado) Desert, extreme north end of Orocopia Mountains, Shavers Valley, at base of hills c. 0.5 mi. SE of Box Canyon Road. 341 Comment
  POM13239  Eriogonum thurberi P. A. Munz, I. M. Johnston 1922-5-19 5348 Riverside 5 miles NE of Murietta. 457 Comment
  POM47236  Eriogonum thurberi Mary F. Spencer 1920-4-6 s.n. Riverside Palm Springs. 122 Comment
  JEPS56291  Eriogonum trichopes W. L. Jepson 1920-5-1 8916 Riverside Palm Springs of Mt. San Jacinto 137 Comment
  UCR108744  Eriogonum trichopes var. trichopes Scott D. White, Sandy Leatherman 1998-4-15 6290 Riverside Sonoran (Colorado) Desert, La Quinta/Palm Desert Area: Near Miles Ave. crossing over Whitewater River Channel. Degraded dunes north of Miles Ave. & west of Washington St., Coachella Valley 43 Comment
  SFV18745  Eriogonum wrightii var. membranaceum J. N. Hogue 2003-9-13 205 .1 Riverside San Jacinto Mountains Hall Canyon, 500 m northeast of Lake Fulmor. James Reserve, University of California. 1645 Comment
  UCR13758  Eriogonum wrightii var. membranaceum N. R. Zabriskie, W. W. Zabriskie 1972-9-7 534 Riverside Peninsular Range; San Jacinto Mtns., Strawberry firebreak, south of S end of Marion Ridge Road, Pine Cove, W drainage Mtns 1921 Comment
  RSA65010  Eriogonum wrightii var. nodosum F. W. Peirson 1922-12-27 3333 Riverside Andreas Canyon, east base of San Jacinto Mountains 610 Comment
  UC126860  Eriophyllum ambiguum var. paleaceum H. M. Hall 1905-4-14 5760 Riverside near Palm Springs; Colorado Desert 150 Comment
  POM12793  Eriophyllum confertiflorum P. A. Munz 1922-6-27 5857 Riverside Santa Rosa, Santa Rosa Mts. 2012 Comment
  POM357969  Eriophyllum confertiflorum Emery M. Whilton 1937-4-23 s.n. Riverside Taken on the crest of the San Jacinto Mtns. Comment
  RSA249829  Eriophyllum confertiflorum R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38076 Riverside San Jacinto Mountains: San Bernardino National Forest. Hilltop above Lake Fulmor. 1676 Comment
  SEINET2051130 Image available Eriophyllum confertiflorum Howard S. Gentry 1947-4-20 7631 Riverside Gentry Farm 3 miles NE of Murrieta. 396 Comment
  UCR108878  Eriophyllum confertiflorum Heidi A. Haid 1968-3 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR137355  Eriophyllum confertiflorum 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
  UC1118333  Eriophyllum confertiflorum var. confertiflorum A. Lewis 1933-1-26 142 Riverside Cactus Valley San Jacinto Quadrangle, Cactus Valley 640 Comment
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Mar 20 2011
  SEINET7073292  Eriophyllum multicaule A. G. Vestal 1963-4-27 s.n. Riverside Cottonwood Canyon Road southeast of Lake Elsinore. Coordinate datum: NAD27. Comment
  UCR101841  Eriophyllum multicaule B. G. Pitzer 1997-4-1 3056 Riverside Lakeview Mtns, c. 0.75 air mi. SSW of Mt. Rudolph, c. 1 air mi NE of Contour (Juniper Flats) Rd. 655 Comment
  UCR91226  Eriophyllum multicaule Scott D. White 1996-3-31 3863 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
  UCD132248  Eriophyllum wallacei William Shapeero 1954-4-28 s.n. Riverside Joshua Tree National Monument. Comment
  UCR196011  Eriophyllum wallacei R. F. Thorne, M. Z. Thorne 1973-3-30 42687 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
  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
  CHSC35507  Erythranthe microphylla Jeanne Muro 1972-4-29 74 Riverside Ca. 5 mi. SW of Murrieta on Tenaja Rd. 655 Comment
  CAS-BOT-BC151589  Erythranthe parishii Louis B. Ziegler 1969-6-12 s.n. Riverside Hemet Valley, San Jacinto Mts. 1432 Comment
  JOTR34368  Eschscholzia Andre, Jim 2012-4-16 20884 Riverside Joshua Tree National Park. Along Cottonwood Spr. Rd. 1 mile north of South Entrance 583 Comment
  UCR251937  Eschscholzia californica Harun Bektas 2011-4-26 14 Riverside Riverside, Box Springs Mountain Park; 7 miles above Moreno Valley via Pigeon Pass Rd. 793 Comment
  UCR2990  Eschscholzia californica David T. Wright 1966-3-19 s.n. Riverside Perris-Aguanga Basin region, 3 mi. north of Perris Comment
  UCR51681  Eschscholzia californica Lyman Benson 1952-4-8 14850 Riverside Sonoran (Colorado) Desert, 2 mi. west of Shaver Summit [Chiriaco Summit] east of Indio, U.S. Hwy 66 518 Comment
  JOTR28881  Eschscholzia minutiflora La Doux, Tasha 2004-2-24 1116 Riverside Joshua Tree National Park. Cottonwood Canyon 932 Comment
  RSA445642  Eschscholzia minutiflora M. B. Dunkle 1933-3-3 3026 Riverside Devils Cactus Garden, Colorado Desert 152 Comment
  RSA550266  Eschscholzia minutiflora Walter Wisura, Michael Wall, John Dolan 1992-3-24 4630 Riverside Low desert: 10 mi NE of Mecca on Box Canyon Rd. Comment
  UCSB18762  Eschscholzia minutiflora Gates, C. 1963-5-5 Riverside State Highway 74; 5.5 miles E of Pinyon Flats Campground; western edge of Colorado Desert 883 Comment
  CAS-BOT-BC83128  Eschscholzia minutiflora Carl B. Wolf 1932-4-29 3106 Riverside Eastern Colorado Desert. Blythe - Rice Road. 9 miles south of Browns Weel. 243 Comment
  SEINET10476293  Eschscholzia minutiflora David B. Dunn, Howard Brown; Elizabeth M. McClintock 1947-3-15 Dunn 2909 Riverside Pushawalla canyon, indio hills. Hill slope. Comment
  RSA0118594  Eschscholzia papastillii Sarah J. J. De Groot, Cheryl Sevilla 2016-3-16 7647 Riverside Mecca Hills, side road MC 093 from Little Box Canyon Road. Side canyon forking north from Little Box Canyon, east of Box Canyon. East side of Mecca Hills, east-northeast of Mecca. 281 Comment
  UCR167412  Eschscholzia parishii 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
  UCSB18841  Eschscholzia parishii Perkins, Carlin 1963-5-5 Riverside State Highway 74; 5-7 miles SE of Pinyon Flats Campground 792 Comment
  SD152810  Eucalyptus camaldulensis Steve Boyd, Tim Ross 1992-2-21 6671 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Potrero de la Cienega area along Morgan Trail from Morrell Canyon south. 701 Comment
  UCR132713  Eucalyptus camaldulensis A. C. Sanders, O. F. Clarke 1991-6-10 11123 Riverside Upper Santa Ana River/San Bernardino Valley, Riverside, along Spring Brook between Lake Evans (Fairmont Park) & the Santa Ana River 238 Comment
  UCR199567  Eucalyptus camaldulensis Scott D. White, Angelia Carey 2004-7-2 10599 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Poppet Creek Canyon 610 Comment
  HSC92877  Eucrypta chrysanthemifolia Karen Kirtland 1993-4-17 Riverside Hills N of Temecula Comment
  RSA180274  Eucrypta chrysanthemifolia E. W. Lathrop 1965-5-18 5753 Riverside 8 miles W of Murrieta. 610 Comment
  SDSU6013  Eucrypta chrysanthemifolia D. Hunsaker 1962-4-10 Riverside Three miles SSW from Temecula. Comment
  RSA516424  Eucrypta chrysanthemifolia var. chrysanthemifolia Walter Wisura, T. Hayduk, Bart O Brien 1990-5-2 4431 Riverside Ortega Hwy. below switchbacks, near Lake Elsinor. Comment
  SDSU18406  Eucrypta chrysanthemifolia var. chrysanthemifolia C. Matt Guilliams 2008-2-27 481 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. 407 Comment
  POM47495  Eucrypta micrantha Mary F. Spencer 1920-3-27 1595 Riverside Palm Springs. 122 Comment
  RSA775663  Eucrypta micrantha Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-23 812 Riverside Chuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.' 396 Comment
  RSA0124118  Eulobus californicus Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8742 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting on the Martinez Slide to the north of Toro Canyon, approximately 5.25 air miles east northeast of the summit of Martinez Mountain. 123 Comment
  SD79811  Eulobus californicus Helen V. Witham 1970-5-1 861 Riverside Bautista Canyon, southeast of Hemet. 800 Comment
  UCR187477  Euonymus occidentalis Theresa Johnson 2006-8-23 283 Riverside Peninsular Range; San Jacinto Mtns., James Reserve, above Lake Fulmor 1646 Comment
  POM302490  Euonymus occidentalis var. parishii J. C. Roos 1943-8-8 2699 Riverside Hall Canyon, San Jacinto Mts. 1829 Comment
  SD211602  Euphorbia Louis C. Wheeler 1950-4-7 6759 Riverside Circa 3 miles West of Dale Lake, just West of two pumping plants on main 29 Palms - Amboy Road. Comment
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Aug 15 2012
  UCR240267  Euphorbia abramsiana Neal Kramer, Wendy McBride 2012-9-3 2068 Riverside Sonoran (Colorado) Desert, south side of Power Line Rd c. 2.75 miles east of Wily's Well Rd and 1.65 miles south of I-10 Fwy 129 Comment
  UCR26218  Euphorbia albomarginata John C. Roos 1951-9-25 5269 Riverside City of Riverside, Fairmount Park 259 Comment
  UCR239824  Euphorbia hirta O. F. Clarke 2007-6-8 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  OBI39241  Euphorbia maculata A. C. Sanders 1982-6-12 2713 Riverside Riverside, garden at 422 Campus View Dr Comment
  RSA737258  Euphorbia maculata Scott D. White 2008-8-20 12536 Riverside Perris Basin: City of Moreno Valley, Perris Blvd. between Krameria and Oleander Streets. 445 Comment
  UCR264235  Euphorbia micromera A. C. Sanders, Jim Malusa 2015-9-10 41842 Riverside Sonoran (Colorado) Desert, mouth of Red Canyon at Salt Creek wash 390 Comment
  RSA171353  Euphorbia palmeri J. D. Olmsted 1962-5-3 3533 Riverside Above old Santa Rosa Indian Village; SW side of Santa Rosa Mountain. 1905 Comment
  RSA432444  Euphorbia palmeri Albert J. Perkins 1916-9-2 s.n. Riverside Idylwild Comment
  RSA600513  Euphorbia parishii L. C. Wheeler 1968-1-13 s.n. Riverside Mecca Hills: Box Canyon, Hidden Spring Trai. 243 Comment
  UCR201604  Euphorbia polycarpa Justin M. Wood 2008-11-17 228 Riverside Southwest Perris Basin, Temecula - Murrieta Creek, downstream of 1st Street bridge 305 Comment
  UCR281923  Euphorbia polycarpa A. C. Sanders, Jim Malusa 2017-9-21 43350 Riverside Sonoran (Colorado) Desert, northern boundary of Chocolate Mountains Aerial Gunnery Range along south side of Bradshaw Trail at large wash crossing 680 Comment
  RSA220385  Euphorbia polycarpa var. hirtella C. W. Tilforth 1971-4-15 345 Riverside C. 6 mi. n. w. of Desert Center, s. e. base of the Eagle Mtns. Comment
  RSA432480A  Euphorbia polycarpa var. hirtella N. C. Cooper 1944-7-15 1576 Riverside Palm Springs. 122 Comment
  RSA70387  Euphorbia polycarpa var. hirtella F. W. Peirson 1924-12-30 5418 Riverside Abundant in dry desert sands; Thousand Palms Canyon. 122 Comment
  UCR202586  Euphorbia serpillifolia subsp. serpillifolia Scott D. White, Justin M. Wood 2008-7-8 12375 Riverside San Jacinto Mountains, Hurkey Creek Watershed - Bonita Vista Road, c. 1/2 mi east and west of Hurkey Creek crossing 1537 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
  RSA515307  Euphorbia spathulata Jeri Hirshberg 1989-4-11 s.n Riverside Santa Rosa Plateau, S of town of Murrieta, Cole Canyon, NW of Mesa de Burro, at head of canyon. 609 Comment
  RSA736123  Euphorbia supina Scott D. White 2008-4-28 11917 Riverside San Gorgonio Pass: Banning, S of I-10 freeway and just N of San Jacinto Mountains toeslope. E of Sunset Ave. 671 Comment
  POM7049  Eustoma exaltatum P. A. Munz, G. Williams 1919-3-25 2314 Riverside Palm Canyon, Palm Springs. 229 Comment
  RSA535485  Euthamia occidentalis Steve Boyd, Orlando Mistretta, Timothy S. Ross 1992-2-2 6633 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Upper San Mateo Canyon between confluence of Tenaja Canyon and Los Alamos Canyon Comment
  GMDRC3748  Fagonia laevis T. La Doux, J. Andre 2009-3-1 385 Riverside Little San Bernardino Mountains: Joshua Tree Natl. Park: south end of the Cottonwood Mtns near Pinkham Wash just N. of aquaduct just inside JTNP boundary, approx 7 mi. W. of S. entrance into park at Cottonwood. USGS 7.5 min. Quad: Cottonwood Basin 33 deg. 40.948' N 115 deg. 52.141' W. Elev. 1778 ft. 542 Comment
  UC495310  Fagonia laevis Philip A. Munz 1932-3-14 11982 Riverside Deep Canyon; Coachella Valley 152 Comment
  RSA6666  Ferocactus cylindraceus var. cylindraceus B. D. Stark 1933-5-13 4982 Riverside Andreas Canyon. 762 Comment
  UCR97745  Festuca microstachys B. G. Pitzer 1997-4-1 3047 Riverside Lakeview Mtns, c. 0.75 air mi. SSW of Mt. Rudolph, c. 1 air mi NE of Contour (Juniper Flats) Rd. 655 Comment
  UCR116970  Festuca octoflora A. C. Sanders, T. B. Salvato 2001-5-3 24095 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  UCD170918  Ficus palmata A. C. Sanders; R. E. Riefner Jr. 2009-8-11 37152 Riverside Peninsular Range, Riverside, along Spring Brook between Lake Evans (Fairmont Park) and the Santa Ana River. 238 Comment
  RSA387345  Filago arizonica Steve Boyd 1986-5-7 1825 Riverside Temescal Canyon Alberhill Mountain: lower slopes of S flank just east of clay mine area 427 Comment
  RSA524398  Filago arizonica Steve Boyd, Timothy S. Ross, Laurel Arnseth, Jaime Bonilla 1990-4-3 4116 Riverside Vail Lake area, upper benches and adjacent slopes of the E flank of 'Big' Oak Mt., just S of the E summit 610 Comment
  SEINET7073467  Filago californica A. G. Vestal 1963-4-25 s.n. Riverside Granite Rocks, about 1 mile west of Radec on Route 71 (presently Route 79). Coordinate datum: NAD27. Comment
  UCR107401  Filago californica B. G. Pitzer 1997-3-23 2982 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
  UCR116903  Filago californica A. C. Sanders, Mitch Provance, T. B. Salvato 2001-4-6 23971 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon area west of Del Rey Rd., hills on both sides of gas pipeline route 390 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
  RSA296220  Flaveria trinervia A. C. Sanders 1981-10-31 2392 Riverside McKinley Street between Riverside and Corona, 3/10 mile north of Hwy. 91 and about 100 yards west of McKinley in a weedy, abandoned squash field 305 Comment
  UCR18413  Flaveria trinervia Mark Tavianini 1977-10-23 s.n. Riverside Riverside, McKinley Street about 1 mi north of Hwy 91 Comment
  LA205427  Fouquieria splendens A. N. Dunn; A. M. Martin 1932-3-26 sn Riverside Box Canyon Comment
  UCR216069  Fouquieria splendens Helen Kennedy, Fred R. Ganders 2008-4-9 6262 Riverside Sonoran (Colorado) Desert, c. 0.5 mi. from junction of Hwy 10 and Cottonwood Spring Road on dirt road to west, SE of Joshua Tree National Park 529 Comment
  UC1931061  Frangula californica subsp. cuspidata Scott D. White, Justin Wood 2008-7-8 12388 Riverside San Jacinto Mountains: Johnson Meadow. Comment
  UCR134000  Fraxinus pennsylvanica subsp. velutina D. E. Bramlet 2003-5-28 3457 Riverside San Gorgonio wash, along dirt road to MWD tailings site, 1768m south of Cabazon, and 762m north of the Colorado aqueduct 545 Comment
  POM75819  Funastrum cynanchoides var. hartwegii Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  POM259726  Funastrum hirtellum E. C. Jaeger 1939-12-1 s.n. Riverside Orocopia Mountains 366 Comment
  RSA458582  Funastrum hirtellum T. S. Clare 1930-4-13 s.n. Riverside Thousand Palms. Colorado desert. Comment
  SEINET10936006  Funastrum hirtellum David B. Dunn 1948-2-21 Dunn 3691 Riverside Found on steep ravine down s. Slope from hill with quad. 5. Pushawalla canyon, indio hills of the colorado desert; w. Of indio. Comment
  UC1618025  Galium andrewsii Donald G. Nelson 1936-5-22 386 Riverside on the Pines-to-Palms Hwy. at Ribbonwood Camp (San Jacinto Mts.); San Jacinto Mts. Comment
  RSA609658  Galium andrewsii subsp. andrewsii R. S. Woglum 1937-5-22 554 Riverside Santa Rosa Mountains. Comment
  RSA770433  Galium angustifolium Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4566 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  RSA516421  Galium angustifolium subsp. angustifolium Walter Wisura, Bart O'Brien, T. Hayduk 1990-5-2 4428 Riverside Ortega Hwy. below switchbacks, near Lake Elsinor. Comment
  RSA741580  Galium angustifolium subsp. angustifolium Scott D. White, Justin M. Wood 2008-6-17 12175 Riverside Garner Valley- Kenworthy Station (USFS) 1378 Comment
  CAS-BOT-BC223052  Galium angustifolium subsp. gracillimum H. K. Wagnon 1944-5-25 401 Riverside Along Tahquitz Creek, alluvial fan of Tahquitz Canon [Canyon], Palm Springs Comment
  CAS-BOT-BC223056  Galium angustifolium subsp. gracillimum Alice Eastwood 1913-4-30 3027 Riverside Palm Springs Comment
  RSA6096  Galium angustifolium subsp. gracillimum Carl B. Wolf 1932-5-24 3648 Riverside 0.5 mile below the Fish Hatchery, Snow Creek, north base of San Jacinto Mountains 549 Comment
  RSA708078  Galium aparine Scott D. White, Angelia Carey 2004-4-16 10192 Riverside San Jacinto Mountain foothills: Indian Creek and adjacent slopes. 549 Comment
  POM99061  Galium aparine E. C. Jaeger 1926-5-1 s.n. Riverside Joseph Canyon, Santa Ana Mts. Comment
  RSA678933  Galium nuttallii subsp. nuttallii Scott D. White, Michael Honer 2003-6-3 9476 Riverside Santa Ana Mountains: Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. 335 Comment
  UCR17531  Galium parishii Frank C. Vasek 1979-7-26 790726- 02 d Riverside Santa Rosa Mtns, Vicinity of Virgin Spring and Stump Spring 2348 Comment
  UCR177635  Galium porrigens John F. Green, M. D. Wilcox 2003-7-15 s.n. Riverside San Jacinto Mtns., on powerline trail, picnic area at Juan Diego Flats, NW of Cahuilla Mountain 1220 Comment
  RSA751277  Galium porrigens var. porrigens A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-25 35628 Riverside May Valley c. 1.25 mi SW of Fleming Ranch, mouth of nameless tributary NW of Herkey Crk., just north of Bonita Vista Rd. 1543 Comment
  POM337423  Galium stellatum F. R. Fosberg 1930-4-30 S 2224 Riverside Morongo Canyon. Comment
  UC1417535  Galium stellatum var. eremicum J. L. Strother 1973-3-24 1158 Riverside above Chiriaco Summit; Joshua Tree National Monument, Lost Palms Canyon Comment
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Mar 26 2011
  RSA97228  Garrya flavescens var. pallida F. W. Peirson 1921-3-21 4464 Riverside Gordon trail from Andreas Canyon, San Jacinto Mts. 1524 Comment
  UCR91912  Garrya veatchii A. C. Sanders, S. Hawkins, J. Goetzen, D. Freeman 1996-5-1 18121 Riverside San Bernardino Mtns, Morongo Indian Reservation, natural pond & bog at SE edge of Burro Flats 1100 Comment
  RSA762000  Gayophytum diffusum subsp. parviflorum Patrick Garrett, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 84 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  SEINET10969634  Gayophytum nuttallii David B. Dunn 1946-8-18 Dunn 2750 Riverside Wellman. Sieniga springs on trail. Peek. San jacinto mts. Comment
  CAS-BOT-BC303588  Geraea canescens C. L. Hitchcock 1940-4-4 5946 Riverside Pinto Basin Comment
  RSA160581  Geraea canescens P. C. Everett, Nick Lolonis 1963-5-3 24490 Riverside Hildalgo & Ramirez Street, la Quinta, W edge Colorado Desert. 61 Comment
  RSA21760  Geraea canescens C. B. Wolf 1937-4-6 8432 Riverside Coachella Valley, 3 miles N of Indio. 0 Comment
  RSA676050  Gilia Scott D. White 2001-4-3 8254 Riverside Colorado Desert: Shavers Valley. Near the I-10 Freeway, ca. 15 miles east of Indio jtn I-10 / SR 111. 396 Comment
  RSA771683  Gilia Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4982 -b Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010 750 Comment
  UCR139140  Gilia John F. Green 2003-6-11 s.n. Riverside San Jacinto Mtns., powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  UCR165396  Gilia angelensis A. C. Sanders 2005-4-21 29577 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UCR20704  Gilia angelensis A. C. Sanders, Steve Boyd 1980-5-2 01450 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  RSA470267  Gilia capitata subsp. abrotanifolia N. C. Cooper 1944-6-4 1365 Riverside Elsinore Mountain; Lookout at top. 1066 Comment
  RSA483575  Gilia capitata subsp. abrotanifolia D. Charlton 1988-5-21 1972 Riverside Thomas Mountain Rd, from North to South. West of Garner Valley and South of Lake Hemet on Hwy 74 1677 Comment
  SD197858  Gilia capitata subsp. abrotanifolia Peter L. Morrell, D. L. Banks 1995-5-4 461 Riverside Agua Tibia Wilderness Area, 2.4 miles (air) westsouthwest of Radec. 622 Comment
  RSA469359  Gilia diegensis N. C. Cooper 1944-5-20 1283 Riverside Palms to Pines Highway [Hwy. 74], San Jacinto Mountains. 1372 Comment
  UCR112393  Gilia latifolia A. C. Sanders, T. B. Salvato 2000-5-16 23393 Riverside Sonoran (Colorado) Desert, Coachella Valley, under powerlines at gravel pits just south of the mouth of Thermal Canyon 30 Comment
  UCR91005  Gilia ochroleuca A. C. Sanders, E. J. Lawlor, C. L. Sanders 1996-4-21 18069 Riverside S slope of San Bernardino Mtns, Morongo Indian Reservation, grounds of the Malki Museum, NE of Banning. 732 Comment
  CAS-BOT-BC407615  Gilia ochroleuca subsp. exilis A. C. Sanders 1994-5-29 14576 Riverside San Bernardino Mountains: East Branch Millard Canyon, along FS Road 4S45 1200 Comment
  RSA0017291  Gilia ochroleuca subsp. exilis J. Mark Porter, Theodore Anderson 2005-5-5 14380 .5 Riverside agua Tibia Mountains; Pechanga Indian Reservation, E of San Gabriel Church, along Pechanga Road; ca. 60 m E crossing of Pechanga Creek. 396 Comment
  SBBG87642  Gilia ochroleuca subsp. exilis A. C. Sanders, B. Pitzer 1986-4-30 6475 Riverside lower Bee Cyn, 0.2 mi above the mouth of cyn 609 Comment
  RSA0017273  Gilia ochroleuca subsp. exilis R. F. Thorne, Fosberg, Sachet, Herbst 1983-4-23 55471 Riverside San Bernardino Mountains: side canyon on W side of Whitewater Canyon, ca. 3.3 miles N of Whitewater post office. 595 Comment
  UCR31681  Gilia scopulorum John C. Roos, Lucille Roos 1949-4-10 4226 Riverside Sonoran (Colorado) Desert, Chuckwalla Mts, rocky hillside 3.5 mi. SE of Desert Center Comment
  GMDRC9797  Gilia stellata J. M. Andre 2017-3-1 38000 Riverside Orocopia Mountains: north end of range, near BLM Rd # 133, 3.5 mi. SE of Interstate 10 (at Box Cyn/Cottonwood Spring Rd exits). 606 Comment
  RSA469737  Gilia stellata Albert J. Perkins, de Forest 1937-3-15 424 Riverside Just W of Desert Center Comment
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Apr 14 2013
  RSA799250  Gilia stellata Thomas Stoughton, Duncan S. Bell, Debra Nelson 2011-2-20 754 Riverside North side of the Mecca hills, side canyon between the head of Box Canyon and Shavers Well, roughly 7.4 miles from Interstate 10 on Box Canyon Road. 305 Comment
  RSA718873  Gilia stellata Michael Honer, L. Hulse 2005-3-7 2032 Riverside Blind Canyon; appx. 1/2 mi. N of Desert Hot Springs. 488 Comment
  CAS-BOT-BC266539  Githopsis diffusa John Roos; Lucille Roos 1952-5-24 5710 Riverside N of Moreno 502 Comment
  POM157911  Githopsis diffusa subsp. filicaulis P. A. Munz 1927-5-20 10807 Riverside 10 miles S. of Hemet. Comment
  RSA32430  Gnaphalium beneolens N. C. Cooper 1943-10-9 952 Riverside Bracts white Comment
  UCR121649  Gnaphalium californicum A. C. Sanders, Kent Beaman 2002-5-10 25045 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
  UCR44227  Gnaphalium canescens subsp. microcephalum A. C. Sanders 1986-6-1 6542 Riverside San Jacinto Mountains, Trail toward Spitler Peak from 'Hurkey Creek Camp to Bonita Vista' [=Apple Canyon] Road 1829 Comment
  UCR216242  Gnaphalium luteoalbum Oleg Pryadko 2008-5-2 054 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
  RSA289833  Gnaphalium palustre B. A. Prigge 1980-8-12 3953 Riverside San Bernardino Mountains, Whitewater Canyon: 0.7 mile WNW of trout farm. 720 Comment
  RSA678953  Gnaphalium palustre Scott D. White, Michael Honer 2003-6-3 9455 Riverside Santa Ana Mountains: Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. 335 Comment
  UC896945  Gnaphalium palustre P. A. Munz 1922-9-6 6375 Riverside Hidden Lake San Jacinto Mts., Hidden Lake 2438 Comment
  RSA632470  Gnaphalium stramineum Scott D. White 1998-6-17 6752 Riverside Gavilan Hills, W Riverside Co.: Along Gavilan Rd. or Santa Rosa Mine Rd.; ca. 7 mi survey route from Gavilan/Cajalco Rd. jtn. south and east to Santa Rosa Mine/Post Rd. jtn. 488 Comment
  UCR20851  Gnaphalium stramineum A. C. Sanders 1979-8-26 00123 Riverside San Jacinto Mtns, James Reserve above Lake Fulmor. Edge of campground near Indian Creek 1646 Comment
  RSA0112993  Gnaphalium thermale P. A. Munz, I. M. Johnston 1924-7-28 8807 Riverside Pine Flats, San Jacinto Mts. [original label says San Diego Co.] 1738 Comment
  RSA736660  Gutierrezia californica Justin M. Wood 2008-7-16 26 Riverside Gavilan Hills at Temescal Wash, near Olsen Canyon, Morgan property, Alberhill area. Comment
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Jul 27 2010
  SEINET269563  Gutierrezia californica Scott D. White 1996-5-27 4077 Riverside E. of Moreno Valley and S.of Calimesa between State Hwy. 60 and Gilman Spr. Rd. west and north of former gravel quarry 518 Comment
  UCR167857  Gutierrezia californica T. B. Salvato, Melissa Clemons 2005-6-23 1326 Riverside Peninsular Range; Temescal Valley, 3 miles NW of Alberhill, Temescal Canyon Road at Corona [Lee] Lake 366 Comment
  RSA5539  Gutierrezia microcephala C. B. Wolf 1932-10-13 4313 Riverside Cottonwood Springs. Eagle Mountains 290 Comment
  JEPS18965  Gutierrezia sarothrae W. L. Jepson 1901-5-17 1232 Riverside mesas e Riverside; Southern California, Riverside to Santa Rosa Peak and Paloma Comment
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Sep 11 2007
  UCR134608  Haplopappus acradenius Marisa Sripracha, Kyle Boyd 2004-2-14 031 Riverside Sonoran (Colorado) Desert, Myoma, on the Thousand Palms Preserve, near the palm oasis just off Thousand Palms Drive 190 Comment
  UCR182862  Haplopappus squarrosus Mitch Provance 2005-2-19 5702 Riverside San Bernardino Valley, NE extreme of the Jurupa Mtns., slopes south of Fontana Dr. 290 Comment
  UCR19506  Haplopappus squarrosus John C. Roos 1965-10-7 s.n. Riverside hills 4 mi south of Beaumont. (Badlands) 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
  RSA0066603  Harpagonella palmeri Steve Boyd 1986-4-2 1589 Riverside Gavilan Plateau, Gavilan Hills: Harford Springs County Park, at south end of park. 609 Comment
  RSA0066635  Harpagonella palmeri D. L. Banks, S. D. Boyd 1995-5-9 398 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mountain, Dorland Mountain area. 790 Comment
  RSA589076  Hazardia squarrosa var. grindelioides D. L. Banks, S. D. Boyd 1995-10-17 0787 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along lower Arroyo Seco, S of the Dripping Springs Campground. Along the broad alluvial benches N of where Arroyo Seco turns to the E. 512 Comment
  RSA674589  Hedypnois cretica Scott D. White 2000-5-5 7777 Riverside City of Murrieta: Vacant lot on N corner at intersection of Jefferson Av. and Murrieta Hot Springs Rd. 323 Comment
  POM319631  Helianthus annuus Patricia Wilder 1970-10-15 4765 Riverside Prado Dam at base of dam in Prado Flood Control Basin. East of Chino Hills. 152 Comment
  RSA0012943  Helianthus californicus P. A. Munz 1922-9-5 6362 Riverside Strawberry Valley, north end. 1677 Comment
  CAS-BOT-BC305711  Helianthus gracilentus Mrs. J. D. Abrams 1901-5-20 s.n. Riverside Elsinore Comment
  POM4823  Helianthus gracilentus I. M. Johnston 1918-5-30 2023 Riverside Temecscal Canyon (near Lee Lake). 335 Comment
  UCSB31631  Helianthus gracilentus Gresley, Wesley 1962-6-29 Riverside Road between Banning and Idyllwild; San Jacinto Mountains 1524 Comment
  UCD132927  Helianthus petiolaris K. Esau 1935-6-15 s.n. Riverside Hemet Valley. Comment
  UC68756  Heliotropium convolvulaceum var. californicum H. M. Hall Apr., 1905 5913 Riverside sand hills near Paloverde; Colorado Desert 91 Comment
  SDSU4512  Heliotropium curassavicum James C. Dice, J. DeWald 1987-10-5 735 Riverside Santa Margarita River, near aqueduct crossing. T8S, R3W, southeast 1/4 of northeast 1/4 of section 27. 247 Comment
  UCR128254  Heliotropium curassavicum A. C. Sanders, Kelly Volansky 2003-10-16 27344 Riverside Moreno Valley, lower Pigeon Pass Valley, NE corner of intersection of Old Lake Dr. and Pigeon Pass Rd. 534 Comment
  UCR808  Heliotropium curassavicum S. C. Anderson 1957-5-21 s.n. Riverside Riverside, Santa Ana River bottom, 0.5 mi. east of Humane Society, north of Jurupa Ave. [near Union Pacific RR bridge] 220 Comment
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Feb 18 2013
  UCR264605  Heliotropium curassavicum var. oculatum Mitch Provance 2012-6-19 196- 12 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  UCR182433  Hemizonia kelloggii Mitch Provance 2005-5-17 6551 B Riverside Warm Springs Valley, Terra Cotta, Nichols Rd. Wetland at Alberhill Creek, c. 100 yards SE of the Durant RR siding, the site bordered along the NW by Pierce St. and on the N by Alberhill Creek, with Baker St. more or less bisecting the collection site 421 Comment
  UCR116588  Hemizonia paniculata A. C. Sanders, T. B. Salvato 2001-5-24 24365 Riverside Perris-Aguanga Basin, Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon west of junction of Av. [Calle] Pina Colada 345 Comment
  UCR131799  Hemizonia paniculata Mitch Provance 1998-6-20 702 Riverside Jurupa Mountains, Glen Avon Hts., Boulder Park, 0.7 km west of Pyrite St.on the north side of Granite Hill Dr. 305 Comment
  UCR182427  Hemizonia paniculata Mitch Provance, A. Montalvo 2005-5-12 6702 Riverside Granitie Knolls and Mesas of Riverside, South Riverside (Prenda area), vicinity of the Prenda Arroyo, near the spillway of the Woodcrest Dam. 335 Comment
  UCR250581  Hemizonia paniculata A. C. Sanders 2013-6-20 40835 Riverside Peninsular Range, Alberhill, along powerline route parallel to 'new' Nichols Rd. extension, NE of Terra Cotta 398 Comment
  UCR104204  Hemizonia pungens subsp. laevis Scott D. White 1997-5-25 5244 B Riverside Perris Basin, Winchester area, roadside of Simpson Ave. <1 mi. west of intersection with Winchester Rd. 445 Comment
  UCR114639  Hemizonia pungens subsp. laevis Fred M. Roberts 1992-8-5 4846 Riverside Anza Valley, Cahuilla Indian Reservation, near northern edge 1170 Comment
  UCR68034  Hemizonia pungens subsp. laevis D. E. Bramlet, D. Bradney 1989-6-13 1924 Riverside Domenigoni-Diamond Valley, just east of Gateway Farms. south of Newport Rd. at the intersection of Newport Rd. and Lucas Rd. [site now under water of Diamond Valley Reservoir] 473 Comment
  HSC47334  Hesperocallis undulata R. W. Spjut, C. E. Edson 1978-4-26 4956 Riverside Colorado Desert, along Hwy. 177, ca. 7 mi. NE of Desert Center. 305 Comment
  JOTR16736  Hesperocallis undulata Leary, Pat 1975-4-27 1116 Riverside Joshua Tree National Park. TWO MILES EAST OF PINTO WELLS 487 Comment
  SEINET4118151  Hesperocnide tenella J. Mygatt, M. Mygatt; A. Munson 1996-1 M- 96 -61 Riverside Harford Springs State Park, off of Gavilan Road. Comment
  RSA801732  Heterocodon rariflorum LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6177 Riverside Logan Creek, north of the community of Pine Cove, and just west of road (5S09). 1799 Comment
  UCR195118  Heterocodon rariflorum A. C. Sanders, Tim Thomas 2008-8-1 35947 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1402 Comment
  RSA0063012  Heuchera elegans Robert Kessler 1920-1 s.n. Riverside San Jacinto Mts. Comment
  CAS-BOT-BC206630  Heuchera hirsutissima Carl B. Wolf 1932-8-5 3977 Riverside Summit of San Jacinto Peak, San Jacinto Mountains 3293 Comment
  UC64041 Image available Heuchera hirsutissima H. M. Hall 1901-7-1 2412 Riverside San Jacinto Mountains; ; San Jacinto Mts. Comment
  CSUSB1457  Hibiscus denudatus Mike Meloy 1964-4-16 Riverside In San Felipe Creek wash, near Highway 78, 10 miles east of Borrego. Comment
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Jun 8 2013
  RSA515200  Hibiscus denudatus Steve Boyd, Orlando Mistretta 1986-3-13 1474 Riverside West Side Palen Mts: NE of Desert Center; first large canyon at NW tip of western segment of range. Comment
  HSC34760  Hilaria rigida R. E. Cooksey Mar 1974 201 Riverside Chino Canyon below Palm Springs Tramway; San Jacinto Mtns. 381 Comment
  UCR241804  Hilaria rigida A. C. Sanders, Ann Howald 2013-2-28 40553 Riverside Sonoran (Colorado) Desert, Bradshaw Trail, 2.2 miles west of Hwy 78, 9.2 km SW (245 deg. ) of Ripley 96 Comment
  RSA502589  Hirschfeldia incana Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-11 3725 Riverside Vail Lake area, wetlands of Wilson Creek, east of the lake. 457 Comment
  RSA0096926  Hoffmannseggia glauca Steve Boyd, Thomas S. Elias, Erika Winter 1986-2-18 1339 Riverside Shavers Valley, Colorado Desert: NW end of Hayfields Dry Lake. Comment
  CAS-BOT-BC206103  Hoffmannseggia microphylla John Thomas Howell 1928-1-30 3307 Riverside 2 miles e. of Shaver's Well, Colorado Desert Comment
  CAS-BOT-BC207568  Hoffmannseggia microphylla B. D. Stark 1931-4-27 1091 -seed Riverside Hidden Springs Canyon, 8 1/2 miles from Mecca, Colorado Desert 6 Comment
  LA45813  Hoffmannseggia microphylla Nesta Dunn; A. M. Martin 1932-3-26 sn Riverside Box Canyon Comment
  RSA0080315  Hoffmannseggia microphylla Sarah J. De Groot, Duncan S. Bell, Cheryl Sevilla 2015-2-10 7359 Riverside Bear Creek drainage, east fork; east side of Santa Rosa Mountains, south of La Quinta, west of Lake Cahuilla. 195 Comment
  UCSB3071  Hoffmannseggia microphylla Haller, John 1960-4-2 Riverside Along U.S. 60-70, about 9 miles east of Indio Comment
  RSA179498  Hordeum brachyantherum subsp. californicum E. W. Lathrop 1959-5-17 4546 Riverside 14 miles west of Murrieta. Comment
  SEINET2473418 Image available Hordeum depressum Andrew C. Sanders, T. B. Salvato 2011-1 38892 Riverside Peninsular Range; Elsinore Trough; city of Lake Elsinore, Baker St. c. 100 m NW of Hwy 74/Riverside Dr. 380 Comment
  UCR76162  Hordeum depressum A. C. Sanders 1993-4-1 13661 Riverside Perris-Aguanga Basin Region, western edge of Hemet, 14 acre parcel at NE corner of intersection of Myers St. and Devonshire Ave., 0.75 mile NE of the intersection of Florida Ave (Hwy 74) and Warren Rd, just south of Tres Cerritos 460 Comment
  RSA85086  Hordeum intercedens J. C. Roos 1952-4-23 5571 Riverside 1 miles southeast of Perris 427 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
  RSA594520  Hordeum murinum subsp. leporinum D. L. Banks, Rashmi Pant 1996-5-13 1025 Riverside NW Palomar Mountains; Agua Tibia Mountains; Hwy. 79, E of the Dripping Springs Campground.; Approximately 1.9 km E of the Dripping Springs Guard Station;, (100 m E of where Hwy. 79 leaves the Forest Service Boundary). On the S side of Hwy. 79. T8S R1W; Just N of the NE 1/4, NW 1/4 of sec. 23. 487 Comment
  CAS-BOT-BC148559  Horkelia clevelandii Cecil Hart 1926-7-4 s.n. Riverside San Jacinto Mts. Comment
  POM47568  Horkelia clevelandii Philip A. Munz, I. M. Johnson 1924-7-28 8809 Riverside Pine Flats. 1738 Comment
  RSA367  Horkelia clevelandii J. T. Howell 1927-8-2 557 Riverside Strawberry Valley, Mt San Jacinto. 1677 Comment
  UC12390  Horkelia clevelandii H. M. Hall 1897-6-16 648 Riverside San Jacinto Mountains, Strawberry Valley 1615 Comment
  UCR146261  Horkelia clevelandii Orlando Mistretta, Mark A. Elvin 1995-6-19 1772 Riverside Peninsular Ranges; San Jacinto Mountains, -- exact loc. unrecorded 1463 Comment
  RSA502893  Hulsea heterochroma Kathy Harper 1988-6-11 s.n. Riverside San Jacinto Mountains, on Thomas Mtn Rd., S of Thomas Mtn. Lookout. Comment
  CAS-BOT-BC312587  Hulsea vestita subsp. callicarpha Frank W. Peirson 1924-7-27 5005 Riverside Near Deer Spring, San Jacinto Mts. 2590 Comment
  POM12884  Hulsea vestita subsp. callicarpha P. A. Munz 1922-7-7 6056 Riverside Zigzag on trail S of Hidden Lake. 2348 Comment
  RSA507957  Hulsea vestita subsp. callicarpha Steve Boyd, Carol Boyd, K. Boyd, R. Noyes, L. Arnseth 1988-5-28 2275 Riverside Cahuilla Mountain, west of Anza, mostly along the crest. 1500 Comment
  UC32859  Hulsea vestita subsp. callicarpha H. M. Hall Jun 1 1901-Jul 1 1901 2313 Riverside near Tahquitz; San Jacinto Mts. 2682 Comment
  SEINET10760638  Hulsea vestita subsp. callicarpha David B. Dunn 1946-8-17 Dunn 2727 Riverside Round meadow dry hillside among Lodge Pole pines, San Jacinto Mts. Comment
  UCR55323  Hydrocotyle ranunculoides L. F. LaPre 1988-7-22 s.n. Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, at the begining of Oak Hill Trail, Nature Conservancy Preserve Comment
  UCR123760  Hymenoclea salsola var. pentalepis Steven R. Hill 2001-4-29 33548 Riverside Western Colorado Desert/ San Bernardino Mtns., E side of Whitewater Canyon along Whitewater River, east of Whitewater Canyon Road, about 2 mi north of Route I-10 549 Comment
  POM13022  Hymenolobus procumbens P. A. Munz 1922-4-29 5120 Riverside Lancaster Valley, s. of Hemet 457 Comment
  RSA752791  Hymenopappus filifolius var. lugens Scott D. White, Justin M. Wood 2009-5-21 12860 Riverside San Jacinto Mountains: Garner Valley, near abandoned duck ponds, S of Quinn Flat. 1357 Comment
  UC871755  Hypericum anagalloides I. W. Clokey and E. G. Anderson 1935-8-21 6833 Riverside N. Fork San Jacinto R. 1500 Comment
  RSA458204  Hypericum androsaemum M. B. Dunkle 1933-7-21 3724 Riverside Idyllwild 1616 Comment
  CLARK-A1528-2978  Hypericum formosum subsp. scouleri John C. Roos 1943-8-8 2702 Riverside San Jacinto Mountains Comment
  SD152932  Hypochaeris glabra Steve Boyd, Tim Ross and Dave Bramlet 1993-5-13 7361 Riverside Southern Santa Ana Mountains, San Mateo Canyon, along stream and adjacent benches and lower slopes abouth the confluence with Los Alamos Canyon. 395 Comment
  UCR34979  Hypochaeris glabra L. B. Ziegler 1968-5-14 293 Riverside San Jacinto Valley, vacant lots in city of San Jacinto. Interior Valley 473 Comment
  HSC66636  Hyptis emoryi Josephine Jones, Christopher Davidson 1980-4-4 9959 Riverside W end of Orocopia Mtns. S of Oro Peak. Comment
  RSA167747  Hyptis emoryi Robert F. Thorne, Robert L. Rutherford 1964-4-10 33550 Riverside Palm Springs. 305 Comment
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Apr 25 2011
  RSA306724  Hyptis emoryi Henry J. Ramsey, Henry J. Ramsey 1938-4-26 1718 Riverside Near Desert Center-Indio. Comment
  SFV17323  Hyptis emoryi J. N. Hogue, J. D. Dilley (268) 1998-4-23 108 .6 Riverside Chuckwalla Mountains. Corn Springs Wash at Corn Spring. 488 Comment
  UC1714339  Hyptis emoryi T. A. Geissman Riverside Box Canyon 3 mi e Mecca; Box Canyon e of Mecca Comment
  UC25261  Hyptis emoryi S. B. Parish Apr 4 1896-Apr 13 1896 4137 Riverside desert base San Jacinto Mt. (Palm Springs (Agua Caliente)); desert base of San Jacinto Mt., Palm Springs (Agua Caliente) 152 Comment
  UCLA61526  Hyptis emoryi N. Dunn and A. M. Martin 1932-3-26 Riverside Box Canyon Comment
  SBBG88249  Ipomoea triloba A. C. Sanders 1988-11-6 8737 Riverside W side of Hwy 86, 6.25 mi S of its jct with Hwy 111 in Coachella and 3.85 mi N of Valerie Jean, 0.55 mi N of Ave 60 -35 Comment
  SBBG62877  Isocoma acradenia R. Hoffmann 1928-10-21 Riverside below Fig Tree John's [Figtree John Spring] -60 Comment
  UCR193358  Isoetes orcuttii A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-25 35625 Riverside Peninsular Range; San Jacinto Mtns., May Valley c. 1.0 mi. WSW of Fleming Ranch, along nameless tributary of Herkey Creek 1585 Comment
  POM9949  Isolepis cernua D. L. Crawford, I. M. Johnston 1917-6-9 1233 Riverside Santa Ana River near Corona Comment
  CHSC95391  Isomeris arborea C. Spurrier; Way, M. J. 2001-6-13 3 Riverside Riverside County. Big Morongo Canyon Preserve, 3.2 km north of Water Company Entrance on Kickapoo Trail. 515 Comment
  UC11135  Isomeris arborea H. M. Hall May 1899 1186 Riverside Aguanga Smith's Mt. (n slope of Smith's Mt) Comment
  CLARK-A1528-2394  Isomeris arborea var. angustata John C. Roos 1967-3-25 Riverside Whitewater Canyon 457 Comment
  UCD51309  Jarava speciosa Peter H. Raven 1958-5-6 12927 Riverside along State Highway 74, 15.6 miles southwest of Palm Desert, San Jacinto Mountains. Comment
  SD227840  Juglans californica A. C. Sanders, K. C. Rose 1999-6-18 22803 Riverside Skinner/Domenigoni area; French Valley, E side of Washington Ave., 1/2 mile S of Rawson Rd (Winchester 7.5'Q). Valley botton, probably subirrigated. 438 Comment
  SEINET3831732  Juglans hindsii R. E. Riefner Jr. 2011-1 11 -126 Riverside Santa Ana Canyon, end of Green River Rd. near entrance to Green River Golf Course. 125 Comment
  CAS-BOT-BC110068  Juncus acutus W. R. Dudley 1903-12-26 s.n. Riverside Palm Springs. Comment
  UCR174315  Juncus bufonius A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32678 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., near stream crossing of dirt road 549 Comment
  UCR202056  Juncus bufonius 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
  RSA500202  Juncus bufonius var. bufonius Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3541 Riverside Vail Lake area, pond and freshwater marsh in Kolb Crk. just south of the lake. Comment
  RSA70059  Juncus bufonius var. occidentalis F. W. Peirson 1922-5-19 3019 Riverside Menifee Valley, south of Perris. 457 Comment
  RSA515314  Juncus macrophyllus Jeri Hirshberg 1989-4-11 s.n. Riverside Santa Rosa Plateau, S of town of Murrieta, NE of Mesa de Burro, creek below Guava-De Luz Road, approximately 1.5 miles SW of intersection with Hayes Avenue. 610 Comment
  RSA191406  Juncus rugulosus E. W. Lathrop, Robert F. Thorne 1967-9-26 6618 Riverside Tenaja Guard Station, 10 miles NW of Murrieta. Comment
  UCR159204  Juncus rugulosus A. C. Sanders, Kelly Volansky 2005-8-31 31568 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
  SEINET1906761  Juncus textilis Scott D. White, R. Jonson 1995-1 3794 Riverside San Bernardino Mtns: Sycamore Canyon, ca 1.3 air mi W-NW of ''Inspiration Point'' on Hwy 18; ca. 1.1 air mi S of Marshall Peak. 610 Comment
  UCR121893  Juncus xiphioides Ian G. Gillespie 2001-5-7 83 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
  UCR174172  Juncus xiphioides A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32582 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
  POM261352  Juniperus californica Philip A. Munz 1940-3-24 15699 Riverside 2 miles north of Cottonwood Springs, Eagle Mountains. 915 Comment
  CAS-BOT-BC234592  Justicia californica Marcus E. Jones 1926-1-20 s.n. Riverside Yaqui Well, Colorado Desert Comment
  CAS-BOT-BC234596  Justicia californica John C. Angsbury 1930-2-1 s.n. Riverside Indio Comment
  RSA1267  Justicia californica Carl B. Wolf 1930-5-25 838 Riverside Chuckawalla Valley, Colorado Desert. Comment
  JEPS13806  Kallstroemia grandiflora Marjorie D. Clary 1936-10-24 2736 Riverside Chuckawalla Valley near Desert Center; North Colorado Desert, Chuckawalla Valley 274 Comment
  RSA660928  Keckiella antirrhinoides Mitch Provance 1998-5-29 559 Riverside NW side of North Hill, along the S edge of Lake Evans. 274 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
  UC1537425  Keckiella antirrhinoides Gordon H. True Jr. 1935-3-13 97 Riverside Mockingbird Canyon 457 Comment
  RSA594038  Keckiella antirrhinoides var. antirrhinoides D. L. Banks, Elizabeth Hedge Banks 1996-5-2 931 -A Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve. Along the broad alluvial benches just to the SE of the gate to the Preserve. 448 Comment
  RSA0019433  Keckiella ternata subsp. ternata Marcus E. Jones 1926-6-20 s.n. Riverside 20 miles north of Idyllwild. Comment
  RSA801951  Koeleria macrantha LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6162 Riverside Along road (5S24). End of Marion Ridge road, south of the community of Pine Cove. Ridge running south down to Idyllwild school of performing arts, west of Strawberry Valley. 1799 Comment
  UCD85823  Koeleria macrantha Peter Kamb 1948-7-10 1187 Riverside Hall Canyon. San Jacinto Mts. 1645 Comment
  UCR96423  Koeleria macrantha Scott D. White 1996-8-1 4434 Riverside Peninsular Range; San Jacinto Mtns., Idyllwild area, Hwy 243 at Deer Springs trailhead and adjacent area 1829 Comment
  CAS-BOT-BC273671  Koeleria pyramidata H. M. Hall 1901-6-1 s.n. Riverside San Jacinto Mountains. Kenworthy Comment
  CAS-BOT-BC273674  Koeleria pyramidata H. M. Hall 1901-6-1 2131 Riverside San Jacinto Mountains. Santa Rosa Mountain. Dry hillsides of Coyote Canyon 1584 Comment
  CAS-BOT-BC61428  Krameria bicolor E. H. Daniels; J. Bates 1932-6-5 s.n Riverside Palm Springs, Colorado Desert 137 Comment
  SD8510  Krameria bicolor Parish Apr 1882 Riverside Agua Caliente Comment
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Jul 16 2010
  UC1280880  Krameria erecta H. E. McMinn 1935-6-27 4062 Riverside Palms to Pines Highway Comment
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Jul 30 2009
  JOTR01075  Krameria erecta Cole, James E. 1941-5-21 760 Riverside Joshua Tree National Park. DALE, COTTONWOOD ROAD 914 Comment
  RSA522307  Lactuca serriola Steve Boyd 1989-7-9 3777 Riverside City of Riverside, 4863 Rubidoux Ave. Comment
  UC68945  Laennecia coulteri H. M. Hall 1905-4-1 5941 Riverside Paloverde Valley Colorado Desert,Paloverde Valley 76 Comment
  RSA524610  Lamarckia aurea Steve Boyd, Timothy S. Ross, L. Arnseth 1990-3-29 3933 Riverside Vail Lake area, summit of 'Big' Oak Mtn, N. of lake. 793 Comment
  UCR207346  Lamarckia aurea O. F. Clarke 2004-3-27 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  UCR224992  Lamium amplexicaule Dave Silverman, Cindy Hopkins, Jamison Miner 2008-3-31 6993 Riverside SE of Banning, old gravel pit/dump E of water treatment facility, along Smith Creek, 200 m S of East Westward Ave. 634 Comment
  HSC17053  Langloisia setosissima subsp. punctata C. L. Hitchcock 1966-3-21 24338 Riverside 40 mi. S of Amboy, at summit of pass through Sheep Hole Mts. Comment
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Jul 10 2012
  JOTR16797  Langloisia setosissima subsp. punctata Dengler, A. 1966-3-31 38 Riverside Joshua Tree National Park. OLD DALE 609 Comment
  POM14062  Langloisia setosissima subsp. setosissima P. A. Munz, D. D. Keck 1922-4-9 4867 Riverside Palm Springs. 457 Comment
  SBBG35059  Langloisia setosissima subsp. setosissima H. and M. Dearing 1937-4-10 1344 Riverside Thousand Palms Cyn Comment
  RSA0084168  Langloisia setosissima subsp. setosissima Steve Boyd, Orlando Mistretta 1986-3-13 1415 Riverside Palen Mountains: NE of Desert Center, jct of Parker Dam Rd & 'Palen Rd' (rd. going through pass between Palen and Granite Ranges). 183 Comment
  SD178232  Lantana camara D. W. Ricker 1987-11-16 Riverside UCR Campus. 334 Comment
  CAS-BOT-BC166018  Larrea tridentata W. R. Dudley 1903-12-30 s.n. Riverside Desert three miles below Thousand Palms Comment
  CAS-BOT-BC170701  Larrea tridentata Greata 1905-8-2 489 Riverside Coachella Comment
  CAS-BOT-BC170704  Larrea tridentata G. P. Rixford 1907-11-25 s.n. Riverside Between Yuma and Needles, Colorado River Comment
  CLARK-A1528-4437  Larrea tridentata John C. Roos 1946-11-30 3161 Riverside Chuckwalla Mountains Comment
  LA209865  Larrea tridentata S. Beller; 1926-4-20 sn Riverside Palm Springs Comment
  RSA0070269  Larrea tridentata Cheryl Sevilla, Sarah J. De Groot 2015-3-16 20 Riverside Transverse Ranges; San Bernardino Mountains region: San Gorgornio Wilderness Area; on the plain to the east of Mission Creek; 0.4 miles northwest of the Stone House. 784 Comment
  UC665863  Larrea tridentata Ira L. Wiggins 1941-3-24 9567 Riverside 0.3 mi s Myoma (4.6 mi n of Indio) Comment
  UCR89566  Larrea tridentata George K. Helmkamp 1994-3-8 41 16 Riverside Western Colorado Desert, SW-facing slope at the junction of [Date] Palm Dr. and Varner Rd., below Edom Hill, 'Indio Hills 152 Comment
  UC55736  Lastarriaea coriacea H. M. Hall May, 1901 Riverside West Riverside Comment
  CAS-BOT-BC353285  Lasthenia coronaria H. M. Hall 1903-4-1 3787 Riverside Vicinity of Riverside 396 Comment
  UCSB12880  Lasthenia coronaria 1962-3-11 Riverside San Jacinto River, 6.5 miles southeast of State 79, on State 74 in Hemet 579 Comment
  CAS-BOT-BC328103  Lasthenia glabrata subsp. coulteri D. Bramlet 1995-5-5 2407 Riverside 7.5 km W of Lakeview and some 90 m SE of the intersection of the Ramona Expressway and Martin Road (Road to Lakeview Hot Springs). 435 Comment
  RSA593886  Lasthenia glabrata subsp. coulteri Steve Boyd, David E. Bramlet 1996-4-19 8614 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  RSA593916  Lasthenia gracilis Steve Boyd, David E. Bramlet 1996-4-19 8596 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  UCD133820  Lasthenia gracilis A. C. Sanders; K. C. Rose 1998-5-21 21863 Riverside Hemet: alkaline flats west of town, E of the canal, S of Hwy 74 (Florida) and ca. 1/4 mi. W of Warren Rd. 457 Comment
  SD8724  Lathyrus vestitus var. alefeldii Daniel Cleveland 1882-4-22 Riverside Temecula Comment
  UC85246  Lathyrus vestitus var. alefeldii D. Cleveland 1882-5-4 Riverside Temecula Comment
  UCR35016  Lathyrus vestitus var. vestitus L. B. Ziegler 1969-5-20 363 Riverside San Jacinto Mtns, Bautista Canyon, middle canyon 915 Comment
  RSA757620  Layia glandulosa LeRoy Gross, Jacqueline McConnaughy, Andrew Monks, Thomas Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4338 Riverside Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W., Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  CAS-BOT-BC224920  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
  CAS-BOT-BC379671  Layia platyglossa E. W. Lathrop 1960-4-8 4746 a Riverside 14 miles west of Murrieta; Loma Linda Comment
  CAS-BOT-BC379674  Layia platyglossa S. B. Parish; W. F. Parish 1882-4-1 1623 Riverside Banning, Southern California Comment
  RSA593885  Layia platyglossa Steve Boyd, David E. Bramlet 1996-4-19 8615 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  SEINET6692562 Image available Layia platyglossa Norman C. Cooper 1944-4-22 1160 Riverside Banning. 732 Comment
  UCR154822  Layia platyglossa A. C. Sanders, Kelly Volansky 2005-3-17 29239 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
  RSA212921  Layia platyglossa subsp. platyglossa L. B. Ziegler 1969-5-15 s.n. Riverside Hemet Valley, south of Kenworthy Ranger Station. 1372 Comment
  RSA212924  Layia platyglossa subsp. platyglossa L. B. Ziegler 1969-5-15 s.n. Riverside Wet depression in lower hills E of Pine Meadow, Hemet Valley, San Jacinto Mts. Comment
  RSA549244  Leersia oryzoides A. C. Sanders, CNPS field trip, O. F. Clarke 1991-10-5 11740 Riverside Riverside, Fairmount Park. Along Spring Brook between Lake Evans and the Santa Ana River, ca. 50-100 m below the lake. Comment
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Jan 9 2008
  UCR153379  Lepechinia cardiophylla Orlando Mistretta 1992-8-31 788 Riverside Peninsular Ranges; Santa Ana Mountains region, Santa Ana Mountains; Sierra Peak; Cleveland National Forest. Astragalus brauntonii survey 701 Comment
  UCR85526  Lepidium chalepense Scott D. White 1993-3-12 1147 Riverside Near Winchester, along Leon Road 445 Comment
  RSA593915  Lepidium dictyotum var. acutidens Steve Boyd, Dave Bramlet 1996-4-19 8595 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  UC856450  Lepidium fremontii Ira L. Wiggins 1937-3-9 8745 Riverside Chuckawalla Spring Chuckawalla Mts. Comment
  GMDRC3750  Lepidium fremontii var. fremontii J. Andre, T. La Doux 2009-3-1 11247 Riverside Little San Bernardino Mountains: Joshua Tree Natl. Park: south end of the Cottonwood Mtns near Pinkham Wash just N. of aquaduct just inside JTNP boundary, approx 7 mi. W. of S. entrance into park at Cottonwood. USGS 7.5 min. Quad: Cottonwood Basin 33 deg. 40.948' N 115 deg. 52.141' W. Elev. 1778 ft. 542 Comment
  JOTR32155  Lepidium fremontii var. fremontii La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2309 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Sandy wash in wide canyon that feeds southwest into Wilson Canyon, with gneiss outcrops on either side of canyon (Stop 5) Comment
  POM6614  Lepidium lasiocarpum P. A. Munz, L. T. Street, Williams 1919-3-25 2315 Riverside Palm Canyon. 243 Comment
  UCR233160A  Lepidium lasiocarpum var. lasiocarpum Jim Andre, Glenn L. Clifton 2011-2-22 17451 Riverside Mecca Hills, along Box Canyon Road, 10.3 mi northeast of town of Mecca 219 Comment
  POM184173  Lepidium nitidum P. A. Munz 1932-3-24 12014 Riverside Corona 366 Comment
  UCR113200  Lepidium nitidum A. C. Sanders 1998-3-11 21658 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, north of Diamond Valley, looking down on San Jacinto Valley between ends of Warren Rd. and Sanderson Ave. 610 Comment
  UCR26523  Lepidium pinnatifidum A. C. Sanders, S. Hagopian 1981-5-20 1258 Riverside Peninsular Range, Wolf Valley, SE of Temecula, NE of State Hwy S16 along road to sod farm 329 Comment
  CAS-BOT-BC13020  Lepidium virginicum Peter H. Raven; R. Snow 1957-7-26 11096 Riverside Banning-Idyllwild road, 0.9 mile north of Vista Grande Ranger Station, San Jacinto Mountains. Comment
  CAS-BOT-BC60111  Lepidium virginicum var. menziesii A. C. Sanders; Mitch Provance; T. B. Salvato 2001-5-7 24158 Riverside Perris-Aguanga Basin region. South of Hemet, east end of Diamond Valley, along Gibbel Road. 549 Comment
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Oct 23 2018
  POM157884  Lepidium virginicum var. pubescens P. A. Munz 1927-5-20 10796 Riverside Murrieta Hot Springs. Comment
  RSA524437  Lepidium virginicum var. robinsonii Steve Boyd, Timothy S. Ross, L. Arnseth 1990-4-3 4053 Riverside Vail Lake Area, summit of Big'' Oak Mts. at E end. 792 Comment
  UCR181624  Lepidium virginicum var. robinsonii Mitch Provance 2004-5-1 7603 Riverside Granitic Knolls of Riverside, Riverside, W side of Versity Hill (Coyote Hill), south side of the UCR campus 396 Comment
  UCR250202  Lepidium virginicum var. robinsonii A. C. Sanders 2014-4-23 41047 Riverside Peninsular Range, Gavilan Hills, along Concordia Ranch Rd. at edge of Temescal Valley, above I-15 and east of Black Powder Rd. 384 Comment
  CAS-BOT-BC339177  Lepidospartum C. B. Wolf 1931-10-14 2462 -A Riverside At Cabezon, San Gorgonio Pass 518 Comment
  JEPS37109  Lepidospartum squamatum Mary Beal 1939-10-25 712 Riverside Palm Springs area Mojave Desert, Palm Springs area Comment
  POM46897  Lepidospartum squamatum Mary F. Spencer 1918-4-1 776 Riverside Andreas Valley near Palm Springs, Colorado Desert. 152 Comment
  UCR199617  Lepidospartum squamatum Scott D. White, Angelia Carey 2004-7-2 10557 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Poppet Creek Canyon 610 Comment
  CAS-BOT-BC274020  Leptochloa fusca subsp. uninervia E. A. McGregor 1917-3-19 797 Riverside Colorado Desert. Indio Sands Comment
  SEINET3196333 Image available Leptochloa fusca subsp. uninervia P. M. Peterson, D. R. Peterson 1988-8-24 4989 Riverside Batista Canyon Wash, entering San Jacinto River (Wash), just N of Cedar and Moutain, NE end of Hemet. Comment
  CAS-BOT-BC274376  Leptochloa panicea subsp. brachiata Malcom A. Nobs; S. Galen Smith 1948-9-3 489 Riverside 2 miles north of Indio Comment
  UCR66611  Leptodactylon pungens subsp. hallii H. M. Hall 1901-1 2130 Riverside Peninsular Range; San Jacinto Mountains, Santa Rosa Mountain, dry hillsides of Coyote Canyon 1524 Comment
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Jul 29 2010
  RSA468555  Leptosiphon androsaceus Anstruther Davidson 1920-5-11 s.n. Riverside Temecula. Comment
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Sep 9 2011
  HSC85325  Leptosiphon lemmonii Steve Boyd 1986-4-2 1633 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  HSC85323  Leptosiphon parviflorus Steve Boyd 1986-4-2 1631 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  SBBG72428  Lesquerella tenella S. W. Hutchinson -Feb-1927 Riverside Colorado Desert Comment
  UCR102728  Lessingia filaginifolia B. G. Pitzer 1998-1-25 3416 Riverside Lakeview Mtns., Reinhardt Canyon, Maze Stone County Park, at N terminus of California Avenue 610 Comment
  UC1929880  Lessingia glandulifera Scott D. White 2003-10-9 9822 Riverside San Jacinto Mountains: Pine Cove area. Dutch Flat. Comment
  RSA78247  Lessingia glandulifera var. glandulifera P. A. Munz, E. K. Balls 1952-8-21 17962 Riverside Hamilton Creek, SE part of San Jacinto Mountains. 1372 Comment
  UCR14010  Lessingia glandulifera var. glandulifera George K. Helmkamp 1973-10-3 s.n. Riverside San Jacinto Mtns., Strawberry Creek, near Idyllwild Comment
  RSA512760  Leymus condensatus Walter Wisura, Bart O'Brien, M. Durant 1990-6-12 4443 Riverside Ortega Highway 2.8 miles from T-junction S of Lake Elsinor, in burned area. Comment
  RSA589075  Leymus condensatus D. L. Banks, Steve Boyd 1995-10-17 786 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along lower Arroyo Seco, S of the Dripping Springs Campground., Along the broad alluvial benches N of where Arroyo Seco turns to the E. 512 Comment
  RSA324571  Limnanthes gracilis subsp. parishii Tom Griggs, Earl Lathrop 1985-3-3 2 Riverside Santa Rosa Plateau, 4 miles W of Murrieta; 1/4 mile below vernal pool C3 on Mesa de Colorado. Comment
  UC1873113  Limonium R. E. Riefner Jr. 2006-8-2 06 -356 Riverside Temescal Valley, W side of I-15 Freeway, ca. 1.1 mi N of Temescal Canyon Road 289 Comment
  RSA768502  Limonium duriusculum Justin M. Wood 2009-11-30 1386 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  RSA49349  Linanthus aureus var. decorus P. A. Munz 1949-4-11 13017 Riverside Near Conejo Well, north base of Eagle Mts 915 Comment
  PASA745  Linanthus bigelovii 1928-3-3 Riverside Hidden Springs, Colorado Desert Comment
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Aug 27 2016
  RSA0009862  Linanthus bigelovii Marcus E. Jones 1903-5-11 10241 Riverside Whitewater. 305 Comment
  RSA689372  Linanthus dianthiflorus Scott D. White 2001-4-19 8377 Riverside Perris Basin: Perris / Sun City area. Just east of Goetz Rd. and south of Ethanac Rd., ca. 1.5 - 2 mi. W of I-215 freeway. 442 Comment
  SD134419  Linanthus dianthiflorus Craig Reiser 1990-4-15 Riverside Off De Portola Road near Calle Grande Road Comment
  POM364588  Linanthus dianthiflorus subsp. dianthiflorus Ora M. Clark 1929-4-6 1944 Riverside South of Hemet Comment
  RSA522762  Linanthus dianthiflorus subsp. dianthiflorus Steve Boyd, L. Arnseth, T. S. Ross 1990-3-29 3869 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
  JOTR34179  Linanthus dichotomus subsp. dichotomus Harding, Mitzi, T. Herskovits and D. Oquendo 2011-5-5 140 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Northeast flowing steep side canyon of Pushawalla Canyon, almost parallel to main canyon (Stop 5) 1171 Comment
  UCR108862  Linanthus lemmonii Heidi A. Haid 1969-3 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  UCR23129  Linanthus lemmonii J. C. Lyman 1981-5-16 s.n. Riverside Peninsular Ranges/San Jacinto Mountains, May Valley Rd, Idyllwild 1768 Comment
  POM128389  Lithophragma affine subsp. mixtum T. Craig 1927-4-23 221 Riverside Glen Ivy. Comment
  SD122177  Lobularia maritima James C. Dice, Virginia Moran 1987-11-28 759 Riverside South rim of Temecula Gorge, in dirt road near locked gate. 305 Comment
  RSA0119998  Logfia arizonica Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-24 9089 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 5.75 air miles southeast of the summit of Martinez Mountain. 550 Comment
  CAS-BOT-BC342261  Logfia filaginoides Ira L. Wiggins 1941-3-27 9702 A Riverside Slopes 4 miles north of Whitewater Comment
  JOTR34276  Logfia filaginoides La Doux, Tasha, M. Harding, B. Truesdell, M. Wheeler 2010-5-12 3291 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Sandy, narrow canyon at base of Quail Mountain with bouldery/rocky slopes; North end of Juniper Flats (Stop 3) Comment
  UC38797  Lolium temulentum E. A. Zumbro 1899-5-17 Riverside Riverside Comment
  UCR1607  Lomatium lucidum R. G. Barber, David L. Davis 1962-5-13 111 Riverside Santa Ana Mtns., l mi. up Ivy St. from center of Murrieta 396 Comment
  JOTR30985  Lomatium mohavense La Doux, Tasha, B. Truesdell, M. Wheeler, M. Harding, E. Babich 2010-4-20 1963 Riverside Joshua Tree National Park. (Stop 2) Hexie Mountains, east end of Blue Cut Gorge, toe slope with bouldery wash Comment
  RSA336410  Lomatium mohavense subsp. longilobum R. F. Thorne, Avi Shmida, Robert Whittaker 1978-4-23 52084 Riverside Pinyon Flats: along Hwy 74, Santa Rosa Mountains. Comment
  UCR101401  Lonicera interrupta A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22215 Riverside San Bernardino Mtns., Morongo Indian Reservation, side canyon east of Middle Branch of Millard Canyon 1341 Comment
  SD152891  Lonicera subspicata Steve Boyd, Tim Ross 1992-5-5 7230 Riverside Southern Santa Ana Mountains, eastern portions of Oak Flats along the Bluewater Trail. 730 Comment
  UCR177636  Lonicera subspicata John F. Green, M. D. Wilcox 2003-7-15 s.n. Riverside San Jacinto Mtns., on powerline trail, picnic area at Juan Diego Flats, NW of Cahuilla Mountain 1220 Comment
  LA204608  Lonicera subspicata var. denudata Harlan Lewis; 1938-7-10 sn Riverside San Jacinto Mountains, Idyllwild 1523 Comment
  RSA406723  Lotus argophyllus var. argophyllus E. A. Zumbro 1902-4-10 s.n. Riverside Box Springs Mountain, near Riverside Comment
  SEINET2062200  Lotus argophyllus var. argophyllus B. Pitzer, A. C. Sanders 1987-4-21 498 Riverside Hot Springs Mountanis, near S-most radio towers, Riverside East 7.5' Quad. Comment
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Feb 22 2014
  UCR35030  Lotus crassifolius L. B. Ziegler 1967-7-5 179 Riverside San Jacinto Mtns, Canyon of the South Fork of the San Jacinto River 1829 Comment
  POM10071  Lotus hamatus Charlotte M. Wilder 1904-4-26 61 Riverside Wilder's Canyon Comment
  RSA522778  Lotus hamatus Steve Boyd, T. S. Ross, L. Arnseth 1990-3-29 3885 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
  UCR155156  Lotus hamatus A. C. Sanders, Kelly Volansky 2005-3-17 29205 Riverside Perris-Aguanga Basin Region, French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., c. 0.5 mi. NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  UCR251996  Lotus heermannii A. C. Sanders, T. B. Salvato 2014-7-2 41171 Riverside Peninsular Range; San Jacinto Mtns., Fobes Canyon, c. 1/2 mile south of Fobes Ranch along Fobes Ranch Rd. 1555 Comment
  UCR120807  Lotus humistratus Ian G. Gillespie 2000-4-19 8 Riverside Temescal Valley, 0.9 mi SE of Indian Truck Trail and 30 m south of DePalma Road 427 Comment
  UCR91381  Lotus humistratus Scott D. White, M. Jacobsmeyer 1996-4-20 3944 Riverside Bundy Canyon Road, west of Menifee. c. 4-5 mi west of Interstate Hwy-215 freeway. north of road. 549 Comment
  JEPS55538  Lotus nevadensis var. nevadensis W. L. Jepson 1903-8-7 2287 Riverside Strawberry Valley San Jacinto Mts. 1676 Comment
  CLARK-A1528-484  Lotus purshianus Pat Halligan 1968-5-2 Riverside Riverside Comment
  UCR133388  Lotus purshianus Tracy Tennant, T. B. Salvato 1998-6-23 486 Riverside San Bernardino Mtns., Morongo Indian Reservation, N end of Hathaway Cyn., c. 0.4 miles east of pk 4265 (polygon 13) 1341 Comment
  UCR89768  Lotus purshianus Scott D. White 1993-5-27 1425 Riverside North Alberhill Ranch, hills north of Walker Canyon 488 Comment
  RSA406789  Lotus rigidus M. B. Dunkle 1935-3-31 4438 Riverside Cottonwood Springs. Colorado Desert. 701 Comment
  RSA406795  Lotus rigidus Christopher Davidson 1973-4-19 1977 Riverside Joshua Tree Natl. Monument, ca 4 mi. E of Split Rock, ca 1.5 mi S of park entrance. 1220 Comment
  RSA498793  Lotus rigidus Robert L. Dressler 1949-3-19 425 Riverside Coxcomb Mountains, 23 miles NE of Desert Center. Comment
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May 24 2012
  RSA450525  Lotus salsuginosus var. brevivexillus B. A. Prigge 1988-2-21 7845 Riverside Colorado Desert, Orocopia Mountains: 2 miles W of Clemens Well. 229 Comment
  RSA629027  Lotus salsuginosus var. salsuginosus Scott D. White 1998-6-28 6791 Riverside Corona: River Road bridge over the Santa Ana River. 159 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
  IRVC26263  Lotus strigosus A. C. Sanders, D. Malueg 2003-5-8 26571 Riverside Los Alamos Road at Warm Springs Creek crossing west of Hwy 79, northeast of the Hogbacks, north of Los Alamos Rd. and east of the creek Perris-Aguanga Basin region 396 Comment
  UCR155938  Lotus strigosus John F. Green 2005-5-4 s.n. Riverside Perris-Aguanga Region, SE corner Markham St. and Day St., Mead Valley area, 2-3 mi SW of March Air Reserve Base 534 Comment
  UCR251989  Lotus strigosus A. C. Sanders, T. B. Salvato 2014-7-2 41164 Riverside Peninsular Range; San Jacinto Mtns., Fobes Canyon, c. 1/2 mile south of Fobes Ranch along Fobes Ranch Rd. 1555 Comment
  POM24281  Lotus tomentellus Marcus E. Jones 1906-4-27 s.n. Riverside Indio. 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
  POM98794  Lotus tomentellus P. A. Munz 1926-1-31 9982 Riverside Clay hills, west of Dos Palmos, Colorado Desert. Comment
  RSA406280  Lotus unifoliolatus M. B. Dunkle 1933-7-20 3699 Riverside Idyllwild, San Jacinto Mountains. 1616 Comment
  UCR91058  Lotus wrangelianus G. R. Ballmer 1996-4-10 s.n. Riverside Skunk Hollow, 6 mi. east of Murrieta, on W side of Pouroy Road 457 Comment
  RSA278564  Lupinus T. C. Emmel 1961-3-21 s.n. Riverside Chino Canyon Comment
  JOTR28884  Lupinus arizonicus La Doux, Tasha 2004-2-24 1119 Riverside Joshua Tree National Park. Cottonwood Canyon 932 Comment
  POM349963  Lupinus arizonicus Anstruther Davidson 1930-1 s.n. Riverside Colorado Desert. Comment
  RSA450526  Lupinus arizonicus B. A. Prigge 1988-2-21 7836 Riverside Colorado Desert, Orocopia Mountains: 2 miles W of Clemens Well. 229 Comment
  UCD105832  Lupinus arizonicus John Wear 1995-3-23 s.n. Riverside Colorado Desert: Blythe. Comment
  SEINET3101908  Lupinus bicolor Marc A. Baker, with Michelle Cloud-Hughes 2011-6-12 17378 Riverside Goff Flat, 5.5km SW of Pyramid Peak Comment
  UCR166163  Lupinus bicolor John F. Green 2005-2-10 s.n. Riverside Peninsular Range, E of Temecula, Rancho California, SE of intersection of Mesa Verdugo and Calle Vista, N of Pauba Valley and south of Buck Mesa 430 Comment
  UCR280830  Lupinus bicolor T. B. Salvato, Gregg Miller 2005-6-3 1405 Riverside Peninsular Range; Perris-Aguanga Basin Region, edge of Gavilan Hills ca 3.5 mi SW of Perris, 1.4 mi SE of Steele Peak, and 0.5 mi NNW of Good Hope Mine, E of Hwy 74 534 Comment
  SEINET7063226 Image available Lupinus concinnus A. G. Vestal 1963-5-19 s.n. Riverside About 0.5 mile west of Cahuilla. UTM Zone 11, 522925mE, 3711215mN. (WGS84/NAD83). 1088 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
  UCR4075  Lupinus concinnus Carole Sims 1965-4-28 s.n. Riverside San Jacinto Mtns, 7 mi. from Banning railroad crossing on road to Idyllwild 1067 Comment
  RSA413571  Lupinus excubitus var. austromontanus N. C. Cooper 1944-6-17 1421 Riverside San Jacinto Mtns, Above Banning. 1067 Comment
  UCR281482  Lupinus excubitus var. hallii Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-4-4 417- 91 Riverside Gavilan Hills, SCE transmission route (projected) 0.6 miles NNW of Lake St. and Walker Canyon Rd. 152 Comment
  RSA503811  Lupinus formosus N. C. Cooper 1944-5-20 1313 Riverside Palms to Pines Highway [Hwy 74], San Jacinto Mountains. 1280 Comment
  UCR107709  Lupinus hirsutissimus A. C. Sanders 1997-3-1 19736 Riverside Box Springs Mountains, Riverside: S end of the range along Gernert Rd. (dirt road paralleling the mountain front), in valley draining to Box Spring Canyon. 457 Comment
  RSA503807  Lupinus hyacinthinus N. C. Cooper 1944-7-16 1611 Riverside San Jacinto Mts, above Pine Cove. 1982 Comment
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Oct 24 2008
  SD229158  Lupinus latifolius var. parishii Dick Schwenkmeyer 2012-6-27 757 Riverside Strawberry Creek, 1/4 mile northwest of Humber Park, Idyllwild. 1914 Comment
  UC729904  Lupinus latifolius var. parishii Carl B. Wolf 1932-8-5 3951 Riverside 1st real wet meadow on trail from Tahquitz Valley to San Jacinto Peak (San Jacinto Mts.); San Jacinto Mts. 2743 Comment
  RSA87025  Lupinus microcarpus var. densiflorus F. W. Peirson 1914-04 705 Riverside Whitewater at head of Coachella Valley. Comment
  RSA0003356  Lupinus microcarpus var. densiflorus Mary F. Spencer 1920-4-11 96 Riverside Palm Springs. Comment
  CLARK-A1528-502  Lupinus polycarpus Charlotte Stocks 1962-6-25 Riverside Whitewater Canyon Comment
  UCR176907  Lupinus sparsiflorus Tracy Tennant 1998-6-18 s.n. Riverside San Jacinto Mtns., Bee Canyon, NE of Valle Vista 793 Comment
  RSA617301  Lupinus sparsiflorus subsp. sparsiflorus R. S. Woglum 1934-3-18 649 A Riverside Peninsuar Ranges: San Jacinto Mountains, Coachella Valley, Snow Creek. Comment
  SEINET10837784  Lupinus succulentus var. succulentus August J. Breitung 1953-4-19 Breitung 14768 Riverside In grain field 10 mi e of beaumont. Flowers purple, upper lip with white Blotch in center. Keel ciliate near claws both above and below. Comment
  JEPS83240  Lupinus truncatus W. L. Jepson 1935-4-21 17156 Riverside Aguauga , branch rd to Pines (near branch rd. to Pines) 603 Comment
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Dec 14 2011
  SDSU18683  Lupinus truncatus C. Matt Guilliams, Jeannine Ross 2008-3-5 492 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. Collections near the Dudleya multicaulis restoration site. 388 Comment
  UC73208  Lupinus truncatus Miss M. A. King 1893-1 Riverside Menifee Comment
  UCR156095  Lupinus truncatus T. B. Salvato, Kent Beaman 2005-5-16 811 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
  UCR174168  Lupinus truncatus A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-26 32602 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
  RSA801942  Luzula comosa var. laxa LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6172 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
  RSA0126632  Lycium andersonii Duncan S. Bell 2016-3-4 8805 Riverside Orocopia Mountains; northwestern corner of range; collecting in the Orocopia Mountains Wilderness area in an unnamed canyon approximately 3.75 air miles northwest of the summit of the range. 738 Comment
  UCR115923  Lycium andersonii Mitch Provance 1998-4-24 1116 Riverside Riverside, c. 1 mile SW of the corner of Trafalgar Ave. and Alessandro Blvd. 366 Comment
  UCR75066  Lycium andersonii A. C. Sanders, E. J. Lawlor 1992-4-4 12115 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  RSA1922  Lycium andersonii var. deserticola B. D. Stark 1930-3-17 s.n. Riverside Mockingbird Canyon Dam Comment
  UCR19491  Lycium brevipes Don Emery 1980-2-12 s.n. Riverside Sonoran (Colorado) Desert, E side of the Salton Sea, near an old playa south of Dos Palmas Spring and north of Ferrum siding Comment
  RSA736732  Lythrum californicum Scott D. White, Angelia Carey, Linda Archa 2004-8-5 10687 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation- Indian Creek and adjacent uplands, from confluence w/ San Jacinto River to +/- 2 miles upstream. 534 Comment
  RSA678927  Lythrum hyssopifolia Scott D. White, Michael Honer 2003-6-3 9470 Riverside Santa Ana Mountains: Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. 335 Comment
  UCR159201  Lythrum hyssopifolia A. C. Sanders, Kelly Volansky 2005-8-31 31567 Riverside Santa Ana Mtns. Region, Santa Rosa Plateau, hills west of headwaters of De Luz Creek, 50 acre parcel on east side Avenida La Cresta south of Sierra Elena Rd., c. 0.5 mi. N of Tenaja Rd. 701 Comment
  CAS-BOT-BC206696  Malacothamnus densiflorus J. T. Howell 1928-7-8 1056 Riverside Santa Ana Mts., above Glen Ivy 914 Comment
  UC484191  Malacothamnus densiflorus J. T. Howell 1928-7-8 1056 Riverside above Glen Ivy; Santa Ana Mtns 914 Comment
  SD112632  Malacothrix clevelandii Darley F. Howe 1946-2-28 1391 Riverside Canyon San Jacinto Mountains Comment
  UCR104960  Malacothrix clevelandii A. C. Sanders, Pam MacKay, Tim Thomas & O. F. Clarke 1997-5-4 20629 Riverside San Jacinto Mountains, north side along Hwy 243, 1.5 mi below Twin Pines Ranch Road (McMullen Flat), north slope of Peak 3740 1067 Comment
  CAS-BOT-BC345465  Malacothrix coulteri H. M. Hall 1902-4-21 2925 Riverside Vicinity of Riverside 487 Comment
  CAS-BOT-BC347705  Malacothrix glabrata John Thomas Howell 1928-3-11 3444 Riverside Coachella Valley, Colorado Desert 213 Comment
  RSA0124037  Malacothrix glabrata Duncan S. Bell, LeRoy Gross 2016-3-10 8882 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; northwestern section of the range; collecting approximately 1.75 air miles northwest of the summit area. 938 Comment
  RSA475301  Malacothrix glabrata Steve Boyd, Sara Meury, Richard Noyes, D. Nordin, L. Arnseth, Timothy S. Ross 1988-3-10 2109 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  VVC93  Malacothrix glabrata A. C. Sanders, J. Mac 1997-5-4 20642 Riverside San Jacinto Mountains, N side along Hwy 243, 1.5 mi. below Twin Pines Ranch Road (McMullen Flat), N slope of peak 3740 1067 Comment
  LA62898  Malosma laurina Harlan Lewis; 1940-7-18 sn Riverside roadside, US 395, 5 mi W of Temecula Comment
  UCSB45543  Malva parviflora Roos, John; Roos, Lucille 1951-5-5 Riverside Fairmont Park, Riverside Comment
  SEINET3449034  Malva sylvestris Unknown 2001-4-29 33518 Riverside Calimesa, Calimesa, south side of route interstate 10 right of way, 0.2 miles west of Desert lawn Road exit, small drainage culvert at San Timoteo Wash 700 Comment
  POM10230  Malvella leprosa Unspecified 1904-5-7 36 Riverside west Riverside [Rubidoux] Comment
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Sep 5 2011
  RSA125207  Mammillaria tetrancistra E. K. Balls, Percy C. Everett 1957-8-20 22672 Riverside 14.7 mi. SW and W along State Hwy. 74 from Palm Village (jct. with State Hwy 111) 1127 Comment
  UC1713780  Mammillaria tetrancistra P. A. Munz and D. Keck 1922-4-13 5016 Riverside Chuckawalla Mts. Colo. Desert Comment
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Aug 28 2016
  SD126049  Marah macrocarpa B. Pitzer, E. Misqez 1988-2-28 617 Riverside SW of Murrieta, Walkder Basin, Avenida del Oro, 2 mi. S of Rancho California Rd. 1399 Comment
  UCR97675  Marah macrocarpa A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19909 Riverside Lake Skinner area, upper Rawson Canyon, 2.5 mi. NNE of Skinner Lake, 1 mi. SW of Crown Valley 595 Comment
  CAS-BOT-BC216182  Marina parryi Roxana S. Ferris; Rimo Bacigalupi 1958-3-19 13246 Riverside Highway U.S. 95, 11.3 mi. N of Blythe. In wash arising in Big Maria Mts. Comment
  POM184542  Marina parryi C. Leo Hitchcock 1932-4-7 12205 Riverside Corn Springs. Comment
  RSA554016  Marina parryi A. C. Sanders, E. J. Lawlor 1992-4-4 12121 Riverside McCoy Mountains, within 1/2 mile of McCoy Spring. 244 Comment
  RSA607362  Marina parryi R. S. Woglum 1939-4-11 2229 Riverside Sonora Desert: Rice to Parker. Comment
  UC68511  Marina parryi H. M. Hall Apr 1905 5846 Riverside Canyon Springs Colorado Desert Comment
  OBI33526  Marrubium vulgare Becky Brooks 1973-5-26 s.n. Riverside Corona; app 250 yds N Ontario Hwy and 100 yds E of Compton Ave 229 Comment
  UCR4135  Marrubium vulgare Ronald M. Cope 1965-3-25 s.n. Riverside Riverside, valley 0.5 mi. west of where Gage Canal goes underground after having crossed Le Conte Drive. Comment
  RSA356750  Matricaria matricarioides R. F. Thorne 1975-5-20 45509 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro; Santa Ana Mountains 610 Comment
  CAS-BOT-BC474718  Matricaria occidentalis R. E. Riefner, Jr. 2015-6-3 15 -169 Riverside City of Hemet, ca 100 yds N of W. Devonshire Ave. and Meyers St. 473 Comment
  CLARK-A1528-2858  Medicago polymorpha John C. Roos 1952-4-9 5487 Riverside Fairmont Park Comment
  RSA593899  Medicago polymorpha Steve D. Boyd, David E. Bramlet 1996-4-19 8608 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  SEINET238796 Image available Melia azedarach A. C. Sanders 1997-1 20616 Riverside Lake Skinner area; old house site at gated road junction into Shipley Reserve area ca. 1 km NE of Lake Skinner in mout 457 Comment
  JOTR30808  Melica frutescens Andre, Jim, Tasha La Doux 2008-9-16 10688 Riverside Joshua Tree National Park. along Bell Mountain Rd. atop Bell Mountain, approximately 0.3 miles north of radio tower. Queen Mountain USGS 7.5 min quad Near 34 00.35' N 116 00.017' W 1358 Comment
  CLARK-A1528-4729  Melica imperfecta John C. Roos 1950-4-22 4752 Riverside Reche Canyon 761 Comment
  UCSB3443  Melilotus albus Philbrick, Ralph 1954-10-24 Riverside Four miles south of Chino Institute 213 Comment
  RSA535486  Melilotus indicus Steve D. Boyd, Tim S. Ross, Orlando Mistretta 1992-2-2 6634 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Upper San Mateo Canyon between confluence of Tenaja Canyon and Los Alamos Canyon Comment
  JOTR29286  Menodora scoparia La Doux, Tasha 2003-9-4 1089 Riverside Joshua Tree National Park. Queen Mountain, above Key's Ranch, near old dam Comment
  JEPS41159  Mentzelia affinis W. L. Jepson May 17 1901-Jun 1 1901 1234 Riverside Riverside, Santa Rosa Peak and Palomar Comment
  RSA69703  Mentzelia affinis F. W. Peirson 1928-3-11 7713 Riverside 8 miles SE of Palm Springs, Riverside County. Comment
  JOTR35453  Mentzelia albicaulis Harding, Mitzi, M. Wheeler, K. Callahan, C. Barrows 2013-4-25 57 Riverside Joshua Tree National Park. Little San Bernardino Mtns. W of Juniper Flats (stop3) Comment
  RSA782078  Mentzelia albicaulis Duncan S. Bell 2009-3-9 116 Riverside Arica Mountains: east side of mountain range, west side of Rice Valley approximately 2.7 air miles northeast of Priest Well or approximately 3.3 air miles southeast of the ghost town of Rice. 244 Comment
  UCR245967  Mentzelia albicaulis Duncan S. Bell 2009-3-9 116 Riverside Arica Mountains, east side of the range, west side of Rice Valley, c. 2.7 air miles NE of Priest Well, or c. 3.3 air miles SE of ghost town of Rice 244 Comment
  POM158437  Mentzelia dispersa P. A. Munz 1927-5-21 10854 Riverside Coahuila. 1372 Comment
  POM48718  Mentzelia dispersa P. A. Munz, I. M. Johnston 1924-7-29 8842 Riverside 6 miles SE of Poppet Flat, San Jacinto Mountains. 1524 Comment
  GMDRC7793  Mentzelia involucrata J. M. Andre 2015-3-6 33559 Riverside Coachella Valley: far NW corner of valley, 0.5 mi west of Hwy 62 (at mouth of Dry Morongo Wash), 0.3 mi. north of Kolbe Rd (dirt). 561 Comment
  SBBG24103  Mentzelia involucrata A. I. Richardson 1966-3-28 Riverside above Desert Highland Hot Springs Comment
  SEINET3005067  Mentzelia involucrata G. Rink 2011-5-1 10505 Riverside North side of the Chuckawalla Mountains near Chuckawalla Spring 505 Comment
  UC672667  Mentzelia involucrata Margaret Stason 1927-2-12 1000 Riverside Colorado Desert,Palm Canyon Comment
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Nov 12 2011
  UCR217792  Mentzelia involucrata Jim Andre, T. La Doux 2010-2-28 12551 Riverside Lower Colorado River Valley, along Hwy 95 c. 25 miles north of Blythe, on east side of Big Maria Mountains, under radio tower 83 Comment
  RSA0038376  Mentzelia involucrata var. megalantha A. Lee Haines 1974-4-8 s.n. Riverside North side of Orocopia Mountains. 396 Comment
  RSA69561  Mentzelia jonesii F. W. Peirson 1928-4-24 7909 Riverside Below Cottonwood Springs, Eagle Mountains. Northern Colorado Desert. Comment
  UCR158503  Mentzelia micrantha A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30022 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
  RSA772122  Mentzelia veatchiana Orlando Mistretta, Duncan S. Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4833 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010. 915 Comment
  SBBG132549  Mentzelia veatchiana S. D. White, J. M. Wood 2008-6-16 12133 Riverside meadow at Quinn Flat 1378 Comment
  UCR225594  Microseris douglasii A. C. Sanders, T. B. Salvato 2011-3-29 38867 Riverside Peninsular Range; Perris-Aguanga Basin Region, between Sun City and Perris, gentle alluvial slope along powerline corridor east of Goetz Rd., west of Wheat St. 450 Comment
  UCR102878A  Microseris douglasii subsp. douglasii A. C. Sanders 1997-3-26 20131 A Riverside Lake Skinner area, large clay patch adjacent to the Skinner entrance road, c. 1 km NE of Borel Rd. 473 Comment
  UCR112326  Microseris douglasii subsp. douglasii A. C. Sanders, K. C. Rose 1998-5-21 21860 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
  POM13807  Microseris heterocarpa P. A. Munz 1922-4-29 5069 Riverside 0.5 mile south of Lake Elsinore. 381 Comment
  RSA556493  Microseris heterocarpa Julie Greene 1993-4-3 1121 Riverside San Jacinto Wildlife Area. Weedy area by Fence Line Road gate. 441 Comment
  UCR135855  Microseris heterocarpa A. C. Sanders 2004-4-20 27576 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  RSA716263  Microseris lindleyi Scott D. White, Angelia Carey 2004-4-5 9997 Riverside San Jacinto Mtn. Foothills: North of Valle Vista. Indian Creek Watershed. 518 Comment
  UC729965  Mimulus aurantiacus var. pubescens Carl B. Wolf 1932-5-24 3657 Riverside 1 mi above Fish Hatchery (n base of mts.); San Jacinto Mts., Snow Creek Canyon 792 Comment
  UCR252523  Mimulus aurantiacus var. pubescens J. Mendoza 2011-5-28 s.n. Riverside Moreno Valley, Boulder Ridge Dr. east of intersection with Lasselle, north of Ironwood Ave. and east of Perris Blvd. on north side of valley 645 Comment
  UC917890  Mimulus aurantiacus var. puniceus Frank W. Gould 1944-4-5 2226 Riverside 17 mi e Temecula Comment
  UCR116520  Mimulus aurantiacus var. puniceus Dan Hare 2001-4-26 s.n. Riverside Perris-Aguanga Basin region, Lake Perris State Recretion Area, approximately 1 km northeast of Bernasconi Beach, Lake Perris 600 Comment
  RSA535794  Mimulus bigelovii var. bigelovii David M. Thompson 1988-3-4 823 Riverside 1.6 ESE of I-10 interchange at Desert Center along dirt road parallel to I-20 (S side of freeway), not far beyond, E of the Desert Center Pumping Station. 82 Comment
  UCR50882  Mimulus bigelovii var. bigelovii A. C. Sanders 1988-5-11 7803 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Iris Pass area, 12 miles above the Coachella Canal, east of the gasline road from Niland 549 Comment
  JEPS9935  Mimulus brevipes W. L. Jepson 1935-4-21 17161 Riverside Wisser Valley Comment
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Apr 7 2009
  SEINET3208895  Mimulus brevipes G. Goodwin 2012-6-14 3450 Riverside San Jacinto Mountains, south of Banning along highway 243 just north of Vista Grande viewpoint 1550 Comment
  UCSC000863  Mimulus brevipes Peter Kamb 1947-6-7 565 Riverside Hall Canyon, San Jacinto Mts. 1646 Comment
  RSA38704  Mimulus clevelandii Percy C. Everett 1945-6-7 11505 Riverside Indian Canyon along Indian Canyon Truck Trail 960 Comment
  UC284800  Mimulus clevelandii P. A. Munz 1923-6-14 7062 Riverside Glen Ivy Trail to Santiago Peak; Santa Ana Mts. 1219 Comment
  CLARK-A1045-280  Mimulus fremontii George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along road (North Fork of the San Jacinto River); moist, gravelly slope; chaparral; ; Lake Fulmor 7.5'Q 1828 Comment
  LA209474  Mimulus fremontii W. B. Welch; 1928-5-5 sn Riverside San Jacinto Mountains, Idyllwild Comment
  JEPS8222  Mimulus fremontii var. fremontii C. V. Meyer June 1927 204 Riverside Saunder's Meadow San Jacinto Mts. 1706 Comment
  UCR116890  Mimulus guttatus A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-8 24200 Riverside Perris-Aguanga Basin region, S of Hemet, E end of Diamond Valley, c. 1/4 mi. north of Newport Rd. and 3/4 mi. east of State St. 506 Comment
  UCR59689  Mimulus guttatus Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3575 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
  UC980569  Mimulus nasutus H. K. Wagnon 1944-3-12 340 Riverside between Palm Springs and Cathedral City (w fork of stream); Eagle Canyon stream Comment
  UC56261  Mimulus parishii F. Gilman 1902-1 18 Riverside Palm Springs Comment
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Jul 6 2010
  UCR82901  Mimulus parishii A. C. Sanders, S. D. White, C. L. Sanders 1994-10-9 15803 Riverside San Bernardino Mtns., Whitewater Canyon, 2 mi below trout farm, above Bonnie Bell 564 Comment
  JEPS10588  Mimulus pilosus W. L. Jepson May 17 1901-Jun 1 1901 1583 Riverside wash near Corona Comment
  RSA444807  Mimulus pilosus J. C. Roos 1952-6-8 5745 Riverside Common along damp sunny bank with Helianthus gracilentus, etc., summit of Reche Canyon near Ferndale school. Comment
  RSA564287  Mimulus pilosus Ed LaRue 1993-5-10 s.n. Riverside Murrieta Oaks, 3 miles (airline) NW of Murrieta Hot Springs, W side of Hwy 215 457 Comment
  UC26914 Image available Mimulus pilosus J. W. Toumey 1899-9-27 Riverside Banning Comment
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Mar 13 2011
  HSC85271  Minuartia douglasii Steve Boyd 1986-4-22 1773 Riverside Temescal Canyon, E side of Indian Wash, S of I-15 Comment
  SBBG35039  Minuartia douglasii T. L. Secrest 1951-5-21 Riverside 3 mi S of Banning 1066 Comment
  UCR91450  Mirabilis californica Scott D. White 1995-3-30 2677 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
  SEINET6627584  Mirabilis laevis Scott D. White 2001-4-3 8227 Riverside Sonoran (Colorado) Desert; Shavers Valley, near the I-10 Freeway, c. 15 miles east of Indio junction of I-10 and Calif. SR 111, adjacent to powerline access roads at unnamed freeway exit accessing pump station 396 Comment
  UCR135836  Mirabilis laevis A. C. Sanders 2004-4-20 27539 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  CAS-BOT-BC434817  Mirabilis laevis var. retrorsa S. B. Parish 1907-4-24 6073 Riverside Whitewater, Western base of the Colorado Desert 109 Comment
  RSA652390  Mirabilis laevis var. retrorsa N. R. Zabriskie, Walter Zabriskie 1971-2-15 s.n. Riverside South facing slope, North Canyon, Andreas Canyon drainage, E slope San Jacinto Mnts, Riverside County. 427 Comment
  UC851827  Mirabilis laevis var. retrorsa I. W. Clokey 1935-4-17 6602 Riverside Cottonwood springs Comment
  UC212968  Mirabilis laevis var. villosa S. B. Parish 1918-4-3 11704 Riverside Lakeside Mountains 457 Comment
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Nov 20 2011
  SEINET8380172  Mohavea H. M. Hall 1905-4-16 5778 Riverside Canons near Indio Mt. i nthe Colorado Desert, lower Sonoran Zone. 150 Comment
  RSA124452  Mohavea confertiflora Percy C. Everett 1958-4-29 23020 Riverside U. S. Hwy. 60/70, Indio to Blythe, 1 mi. W. of Cactus City. Comment
  UCR218318  Mohavea confertiflora Tasha La Doux, Jim Andre 2009-3-10 389 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
  SEINET10548356  Mohavea confertiflora David B. Dunn, A. Folsom; Shogo; Schroeder; Bruskin 1948-3-13 Dunn 3721 Riverside Found growing in a wash. Indio Hills, Colorado Desert. Near Pushawalla. Comment
  SBBG71969  Monardella lanceolata R. Hoffmann 1929-9-7 Riverside Strawberry Valley 1645 Comment
  RSA0097963  Monardella linoides Duncan S. Bell 2014-11-14 7710 Riverside Santa Rosa Mountains; collecting in the Santa Rosa Mountain Wilderness area; west side of Martinez Mountain; at meeting point of Horsethief Creek and the Cactus Spring Trail. 1055 Comment
  CLARK-A1528-3149  Monardella nana John C. Roos 1946-8-27 2916 Riverside Santa Rosa Mountains 2438 Comment
  LA96091  Monardella nana Elizabeth McClintock; M. McClintock, D. Weiner 1941-7-11 103 Riverside Black Mountain, 0.5 mi. beyond Black Mountain Spring Comment
  UC1499879  Monardella nana Elizabeth McClintock 1940-10-19 Riverside San Jacinto Mts. trail to Tahquitz Peak a short distance beyond fork in trail going to Hidden Lake Comment
  RSA0139146  Monardella nana Sarah J. De Groot, Robert K. Lauri 2005-7-7 5115 Riverside San Jacinto Mountains: Along 4S02 between Highway 243 and Dark Canyon Campground; fairly near campground. 1646 Comment
  RSA750290  Monardella nana subsp. tenuiflora Elizabeth McClintock, D. Weiner 1941-7-11 98 Riverside Black Mt. 0.1 mile beyond turn off from Banning-Idyllwild road. Comment
  RSA750397  Monardella nana subsp. tenuiflora Elizabeth McClintock 1940-6-30 20 Riverside Near Marion Camp, on the Banning-Idyllwild road. Comment
  UC1499815  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-17 118 Riverside trail to Suicide Rock (along a level stretch a short distance below the top); San Jacinto Mts. Comment
  UC1499816  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-17 119 Riverside trail to Suicide Rock (at the stream which crosses the trail, a short distance beyond the forks); San Jacinto Mts. Comment
  UC279710  Monardella nana subsp. tenuiflora Edmund C. Jaeger 1925-8-1 Riverside near Gregg's Ranch; San Jacinto Mts. 1280 Comment
  SEINET10582073  Monardella nana subsp. tenuiflora A. Graff 1993-6-24 Graff 47 Riverside San Bernadino National Forest, San Jacinto Mtns. 1.45 miles in on Black Mtn. Rd. (USNFS Rd. 4S01) from Hwy. 243, on both sides of the road, though most extensively on the right. Before intersection of 4S01 and 4S02. T4S,R2E,S23. Locally abundant in semi-shade, with Quercus kelloggi, Q. chrysolepis, Picea sp., Pinus coulteri, P. ponderosa, Arctostaphylos pringlei, Eriogonum confertiflorum, Lupinus sp., Lotus scoparius. Need USNFS permission to collect. Comment
  POM363583  Monoptilon bellioides A. C. Life 1928-3-17 15744 Riverside Colorado Desert, Painted Canyon Comment
  RSA692205  Monoptilon bellioides Scott D. White, Michael Honer 2003-5-14 9284 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  RSA701041  Monoptilon bellioides Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11285 Riverside Western edge of the Chocolate Mountains, along Gas Line Road in major wash system west of Iris Wash drainage. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. 570 Comment
  UCR104032  Monoptilon bellioides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2734 Riverside Sonoran (Colorado) Desert, Chuckwalla Mtns, 10.6 miles SSW of Chuckwalla Valley Rd. on Graham Pass Rd. 488 Comment
  UC7827  Montia chamissoi H. M. Hall July, 1901 2362 Riverside Tamarack Valley; San Jacinto Mountains, Tamarack Valley 2743 Comment
  UCD86592  Muhlenbergia filiformis A. A. Beetle 1946-6-10 4398 Riverside In San Jacinto Mountains, near Idylewilde. 1219 Comment
  UCD86690  Muhlenbergia filiformis F. M. Reed 1928-7-1 6019 Riverside Strawberry Creek at Camp Emerson. San Jacinto Mts. 1524 Comment
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May 1 2011
  RSA674595  Muhlenbergia microsperma Scott D. White, Tasha LaDoux 2000-6-16 8010 Riverside Menifee/Sun City area: South of McColl Ave. and east of I-215 freeway. 442 Comment
  SDSU12853  Muhlenbergia microsperma Janet M. Knotts with Jill Steinberg and Kevin Contreras 1998-3-25 25 III1998F Riverside Road to southwest of SDSU Santa Margarita Field Station, ca. 1000 feet S.W. on road to switchback, northwest of bend in road. 262 Comment
  UCR174308  Muhlenbergia microsperma A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32651 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
  SEINET11679031  Muhlenbergia microsperma A. A. Beetle 1946-1 4231 Riverside at DeLuz near Murietta Comment
  SEINET10468382  Muhlenbergia richardsonis A. K. Evans 1976-4-13 Evans 5132 Riverside Desert canyons of Santa Rosa Mountains. Comment
  UCR104631  Muilla maritima D. E. Bramlet, P. Jacks, S. Goode 1989-4-4 1787 Riverside Perris-Aguanga Basin Region, Lake Skinner, north of the lake on the S-facing slope of Bachelor Mountain 488 Comment
  CAS-BOT-BC83349  Myosurus minimus Frank W. Peirson 1922-5-19 4171 Riverside Menifee Valley. Comment
  SD134392  Myosurus minimus var. apus Craig Reiser 1992-5-9 Riverside Hemet, corner of Stowe and California Streets Comment
  RSA289827  Myriophyllum spicatum Barry A. Prigge 1980-9-17 4091 Riverside Coachella Valley Stormwater Channel: 2 mi. W of Mecca, where Pierce Rd. crosses channel. -55 Comment
  RSA522091  Najas marina Steve Boyd, Orlando Mistretta 1989-7-18 3759 Riverside Vail Lake area, along west shore of lake 1/2 mi S of dam. 427 Comment
  RSA721839  Nama demissa J. R. Bruff 1928-4-2 100 Riverside Canyon 1 mile west of Morengo Comment
  SD38525  Nama demissa var. demissa Edith A. Purer 1935-4-21 6476 Riverside Near Palm Springs, Colorado Desert. Comment
  UCR198171  Nama hispida var. spathulata Michael Honer, Theresa Miller 2005-3-11 2063 Riverside Northeastern Colorado Desert, Rice Valley, 4.5 mi south-southeast of Rice, 1.5 mi east of ATSF railway 220 Comment
  POM1087  Nassella lepida I. M. Johnston 1917-6-5 1301 Riverside Hills south of Arlington 366 Comment
  RSA613419  Nassella lepida D. L. Banks 1997-4-5 1672 Riverside NW Palomar Mountains, Agua Tibia Mountains: Agua Tibia Wilderness Area., South of Dorland Mountain, just east of the Wilderness Area boundry with the Pechanga Indian Reservation, along a tributary of the north fork of Pechanga Creek. 670 Comment
  SBBG54314  Nassella pulchra C. Davidson 1977-5-25 5649 Riverside Mesa de Burro, Santa Rosa Plateau 701 Comment
  UCR174316  Navarretia atractyloides A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32558 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
  UCR87888  Navarretia fossalis 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
  HSC78533  Nemacladus longiflorus J. C. Roos 1947-3-15 3343 Riverside 1 mi. E of Valle Vista. 549 Comment
  RSA339652  Nemacladus longiflorus var. breviflorus R. F. Thorne, C. W. Tilforth 1980-5-28 54232 Riverside Along Whitewater River, ca. 3.2 miles N of Whitewater Post Office and Hwy 10. Comment
  RSA583748  Nemacladus ramosissimus Steve Boyd 1995-4-24 8483 Riverside Palomar Range, Agua Tibia Wilderness Area, Arroyo Seco drainage on northern flank of Agua Tibia Mountain at the north base of Wildhorse Peak, along the Wildhorse Trail near the northeastern corner of the Wilderness. 671 Comment
  RSA586730  Nemacladus ramosissimus D. L. Banks, S. D. Boyd 1995-5-17 0453 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mtn., E of the Dripping Springs Alcove area W of the Dripping Springs Trail, along the W fork of upper Arroyo Seco. 598 Comment
  UCR104634  Nemacladus ramosissimus D. E. Bramlet, P. Jacks, S. Goode 1989-4-4 1794 A Riverside Perris-Aguanga Basin Region, Lake Skinner, north of the lake on the S-facing slope of Bachelor Mountain 488 Comment
  SEINET10461158  Nemacladus rubescens var. rubescens Piehl 1963-6-2 PIEHL 63547 A Riverside Along California Highway 74, 1.2 miles west of Mountain Center 1341 Comment
  UCR18415  Nemacladus sigmoideus A. C. Sanders 1978-4-30 00254 Riverside Peninsular Range; Santa Rosa Mtns, Cactus Spring Trail, first large wash east of Horse Thief Creek, probably very near Cactus Spring 1311 Comment
  UC489037  Nemophila menziesii C. V. Meyer Jun 1927 185 Riverside Saunder's Meadow , Saunder's Meadow (San Jacinto Mts.) 1676 Comment
  UCR263735  Nemophila menziesii Duncan S. Bell, Caitlin Elam, Carrie Kiel 2013-6-5 5004 Riverside San Jacinto Mountains, Strawberry Creek below Strawberry Valley, c. 2.25 air mi southwest of Idyllwild 1540 Comment
  RSA0105076  Nemophila menziesii var. menziesii Daphne K. Christopher, Hannah Stevens 2003-4-4 97 Riverside UC Riverside, Motte Rimrock Reserve. Off Sage Rd. 536 Comment
  UC127305  Nicotiana attenuata unknown Aug 1901 838 Riverside San Jacinto Mts. 1524 Comment
  JEPS12375  Nicotiana clevelandii S. B. Parish 1920-3-26 20011 Riverside near Palm Springs (e base of Mt. San Jacinto); Colorado Desert, Mt. San Jacinto Comment
  RSA11572  Nicotiana obtusifolia A. N. Dunn 1932-3-26 s.n. Riverside Box Canon. [Canyon] Comment
  UC68728  Nicotiana obtusifolia H. M. Hall 1905-4-21 5837 Riverside near Salton; Colorado Desert -30 Comment
  RSA0018751  Nicotiana obtusifolia P. J. Remple 1942-3-2 s.n. Riverside Dead Indian Creek, Santa Rosa Mtns. Comment
  RSA0018761  Nicotiana obtusifolia Philip A. Munz 1932-3-14 12010 Riverside Magnesia Spring Canyon, Coachella Valley. 91 Comment
  RSA58866  Nolina parryi Philip A. Munz 1950-6-23 14921 Riverside 1.5 miles SE of Kenworthy, south end of San Jacinto Mountains. 1524 Comment
  UCD137527  Notholaena californica Lewis S. Rose 1966-12-13 66102 Riverside Palm Springs, Tahquitz wash. 182 Comment
  SD146149  Nuttallanthus texanus Oscar F. Clarke 1997-3-4 Riverside Riverside: vacant lot at back of St. George's Episcopal Church, corner of Spruce St. and Watkins Drive 305 Comment
  CHSC8539  Oenothera Edward Laidlaw Smith 1958-3-21 382 Riverside 6 mi. s. Rice near Priest's Well. Little Santa Ana Mt. Range. Colorado River drainage area. 365 Comment
  CAS-BOT-BC171482  Oenothera californica Jenkins; Street 1955-5-30 1955 Riverside San Jacinto Comment
  UCR249665  Oenothera deltoides T. B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-3-8 7302 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
  POM8654  Oenothera deltoides subsp. deltoides P. A. Munz, R. D. Harwood 1920-4-20 35832 Riverside Blythe. Comment
  UC665751  Oenothera deltoides subsp. deltoides Ira L. Wiggins 1941-3-26 9660 Riverside along wash Wiley Well Comment
  UCR199726  Oenothera elata Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10675 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Indian Creek and adjacent uplands, from confluence with San Jacinto River to c. 2 miles upstream 610 Comment
  VVC347  Oenothera elata F. Zaebst 1959-4-26 s.n. Riverside South Perris Basin, US 395 (now I-15), 2.2 mi S of Temecula River Bridge, 10 yds S.E. of hwy marker 38&30A E. side of road. 366 Comment
  RSA395358  Olea europaea Steve Boyd 1986-4-22 1739 Riverside Temescal Canyon: Stable alluvial benches of Indian wash just south of I-15. Comment
  RSA80685  Oligomeris linifolia F. W. Peirson 1927-4-12 7161 Riverside Painted canyon, near Mecca. Comment
  LA205147  Olneya tesota Sponsler; 1925-4-18 6968 Riverside 6 mi. E of Mecca Comment
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Feb 22 2014
  UCD108102  Olneya tesota G. H. Vansell 1928-4-1 s.n. Riverside S. Calif. and Coachella Valley. Comment
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Jun 15 2013
  CDA7119  Oncosiphon piluliferum A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32540 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Canyon/Scott Road and north of Clinton Keith Road. Comment
  SD232196  Oncosiphon piluliferum Steve Boyd 2003-4-30 10507 Riverside San Bernardino Basin region: Mira Loma, along Highway 60 at onramp from Etiwanda Ave. to Hwy 60 westbound. Comment
  UCR261455  Oncosiphon piluliferum A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41442 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
  RSA586860  Opuntia basilaris var. basilaris D. L. Banks, S. D. Boyd 1995-5-3 0248 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
  UCR1489  Opuntia basilaris var. basilaris Howard York 1962-4-6 s.n. Riverside Western Colorado Desert/ San Bernardino Mtns., Whitewater Canyon, 2.5 miles up canyon from Hwy 99 [now frontage rd. just north of I-10] 'alt. 1500 ft. 549 Comment
  SD167377  Opuntia littoralis Scott D. White 1994-6-23 2101 Riverside Temecula/Murrieta Region, Santa Gertrudis Creek, ca. 1 mile east of Skunk Hollow; Bachelor Mountain 7.5' quad. 395 Comment
  RSA355168  Opuntia oricola A. C. Sanders, B. D. Parfitt, R. Anthony 1986-4-19 646 Riverside Sandia canyon, south side of Mesa de Burro, just below large water tanks near intersection of De Luz Road & Rancho California Road,Santa Rosa Plateau, Santa Ana Mountains. 457 Comment
  SEINET2057454 Image available Opuntia phaeacantha Karin Cleary 1987-5-21 73 Riverside San Jacinto, chaparral N side of Gilman Springs Rd., 0.4 km SE of the intersection of Gilman Springs Rd and Bridge St. 463 Comment
  POM157914  Orcuttia californica P. A. Munz 1927-5-20 10804 Riverside Murrieta Hot Springs. Comment
  RSA539202  Orcuttia californica D. E. Bramlet 1992-4-29 2253 Riverside San Jacinto Valley, 8 km SW of Hemet, NW of the intersection of California Ave. and Stowe Rd., c. 250 ft. north of Stowe Rd. and c. 350 ft. west of California Ave. 456 Comment
  UC1532824  Orcuttia californica Robert F. Thorne, C. W. Tilforth, L. DeBuhr and E. Lathrop 1975-8-29 47312 Riverside Mesa de Burro Santa Rosa Plateau, Rancho California 609 Comment
  UC469006  Oreostemma alpigenum var. andersonii F. M. Reed 1908-7-10 2532 Riverside Round Valley San Jacinto Mountains 2743 Comment
  SEINET10723433  Oreostemma alpigenum var. andersonii David B. Dunn 1946-8-17 Dunn 2693 Riverside Damp meadow area grassy, near the stream at the camp in Taquitz Valley, San Jacinto Mts. 2438 Comment
  SBBG68733  Orobanche cooperi L. Rowntree 1930-5-8 Riverside Mecca Comment
  POM184267  Orthocarpus purpurascens var. pallidus Philip A. Munz 1932-3-24 12016 Riverside Corona 366 Comment
  RSA560410  Oxalis albicans subsp. californica Steve Boyd 1992-4-14 6873 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area; Bluewater Canyon along Bluewater Trail downstream to the confluence with San Mateo Creek. 341 Comment
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Oct 22 2014
  RSA287109  Oxytheca emarginata J. C. Lyman 1981-5-22 s.n. Riverside Burned area on the east side of Mt. San Jacinto. 1829 Comment
  SEINET4153050 Image available Oxytheca trilobata Susan G. Stokes 1934-7-1 312 Riverside San Jacinto Mt. 1219 Comment
  CAS-BOT-BC327937  Palafoxia arida Annie M. Alexander; Louise Kellogg 1941-5-12 2163 Riverside Colorado Desert. Road to Black Eagle Mine, Eagle Mountains. 670 Comment
  UCR90264  Palafoxia arida F. M. Reed 1917-5-19 3843 Riverside Western Colorado Desert, Region of Palm Springs Canyon, mesa south of Palm Springs village 152 Comment
  RSA0013750  Palafoxia arida var. arida April Garbat, Sarah J. De Groot 2013-3-27 28 Riverside Hwy 177 N of Hwy 10, N of Palen Pass Rd. On E side of the road 398 Comment
  RSA363739  Palafoxia arida var. arida Geo Cantwell, B. C. Templeton 1935-4-10 s.n. Riverside Dos Palmas Springs, Salton Sea Comment
  RSA557879  Panicum capillare Steve Boyd, O. Mistretta 1992-4-23 7051 Riverside San Mateo Canyon Wilderness Area, along San Mateo Creek from Riverside Co. line, following San Mateo Trail upstream to the confluence with Bluewater Canyon. 243 Comment
  UC577430  Panicum hirticaule subsp. hirticaule J. and H. W. Grinnell 1937-11-30 1082 a Riverside 24 mi w Blythe (bed of Ford Dry Lake); bed of Ford Dry Lake Comment
  UCR2613  Panicum miliaceum F. M. Reed 1910-10-14 3112 Riverside Riverside: margin of cultivated orchard, Bundy Lot 305 Comment
  UC912656  Panicum urvilleanum H. L. Mason 1928-3-10 4197 Riverside Whitewater River Comment
  RSA651305  Parietaria hespera var. hespera W. M. Zabriskie 1973-2-21 124 Riverside Pipistrelle Canyon, Deep Canyon drainage, N slope Santa Rosa Mtns. (T6S, R6E, SE 1/4 Sec 20) 427 Comment
  RSA718576  Parietaria hespera var. hespera Michael Honer, L. Hulse 2004-4-3 1895 Riverside Nameless canyon appx. 1 mi. W of Pushawalla Cyn., leading up to MWD aqueduct. 488 Comment
  CLARK-A1528-514  Parkinsonia aculeata Al Kimker 1970-5-3 14 Riverside Banning 487 Comment
  HSC14622  Parkinsonia florida J. J. Wagoner 1965-4-13 34 Riverside E slope of San Jacinto along Palms to Pines Hwy., 2 mi. W of Palm Desert. 76 Comment
  RSA0045516  Parosela parryi Mary Edmunds 1932-3-26 s.n. Riverside Oasis. [Most likely the city in Riverside County]. Comment
  RSA704040  Parosela spinosa Anonymous s.n. Riverside Colorado Desert. Comment
  SBBG46835  Pectis papposa K. K. Muller 1971-11-7 2981 Riverside just S of US Hwy 60, opposite S entrance to Joshua Tree Nat Monument Comment
  UCR274782  Pectis papposa var. papposa Stephanie Rockwood, Christi Gabriel 2011-10-5 060 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains Wilderness Area, Dupont Road. Ship Creek, Corn Springs Road exit from Hwy I-10 341 Comment
  RSA779700  Pectocarya heterocarpa Duncan S. Bell 2010-4-2 726 Riverside Arica Mountains: east side of mountain range, approximately 2.4 air miles northwest of Priests Well, or approximately 5.7 air miles southwest of the ghost town of Rice. 419 Comment
  SBBG87400  Pectocarya heterocarpa A. C. Sanders with B. Pitzer, D. Charlton 1986-3-1 6017 Riverside Chuckwalla Valley, 1 mi W of Hayfield Lake, 2 mi SW of pumping station on a small cutoff rd from Hayfield Rd to the dirt rd to Colorado River Aqueduct 426 Comment
  UCR249666  Pectocarya heterocarpa T. B. Salvato, R. T. Hawke, Tim Thomas, Mitch Provance 2013-3-8 7304 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
  UCR41583  Pectocarya heterocarpa A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6124 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  RSA660562  Pectocarya linearis Starr Streight 1982-4-17 76 Riverside Field north of Santa Rosa road, 5.7 miles east of Lake Mathews Road. Comment
  RSA674708  Pectocarya linearis Scott D. White 2000-5-1 7743 Riverside Corona: Western foothills of Santa Ana Mountains near Bedford Canyon. 351 Comment
  UCR140327  Pectocarya linearis A. C. Sanders, Guy Bruyea 2004-4-2 27417 Riverside San Jacinto Valley, Tres Cerritos, c. 3 miles WNW of Hemet, east of the Lakeview Mtns., mouth of canyon on south side, just north of Rose Rd. 463 Comment
  RSA528100  Pectocarya linearis subsp. ferocula Steve Myers 1991-4-15 91 -16 Riverside City of Banning, W of fields Road, N of Interstate 10 & S o the Morongo Indian Reservation. 671 Comment
  RSA689498B  Pectocarya linearis subsp. ferocula Scott D. White 2001-4-19 8374 -B Riverside Perris Basin: Perris/Sun City area. Just east of Goetz Rd. and south of Ethanac Rd., ca. 1.5-2 mi west of Interstate 215. 442 Comment
  RSA594113  Pectocarya penicillata D. L. Banks, Elizabeth Hedge Banks 1996-5-2 919 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve. Along the broad alluvial benches just to the SE of the gate to the Preserve. 448 Comment
  RSA695835  Pectocarya penicillata J. Russell Bruff 1934-6-19 550 -a Riverside Near Hemet Reservoir Comment
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Dec 11 2011
  RSA744306  Pectocarya penicillata Michael Wall 2009-3-27 499 -C Riverside Bautista Creek east of Hemet off Bautista Canyon Rd. ca. 8 miles SE of jct. with Fairview Ave. 754 Comment
  UC218244  Pectocarya penicillata P. A. Munz and I. M. Johnston 1922-5-19 5422 Riverside San Jacinto Mountains, Keen Camp 1524 Comment
  UCSB46750  Pectocarya penicillata Roos, John 1966-4-5 Riverside In the hills near Winchester Comment
  UCR116630  Pectocarya platycarpa A. C. Sanders 2001-3-20 23844 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
  UCR41585  Pectocarya recurvata A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6122 Riverside Sonoran (Colorado) Desert, Corn Spring, Chuckwalla Mtns. wash below the spring and wash and rocky slopes to the south 489 Comment
  VVC135  Pectocarya recurvata A. C. Sanders, J. Mac 1995-3-12 16080 Riverside Coachella Valley/Santa Rosa Mtns., alluvial slopes at the foot of Rabbit Peak, below Sheep Canyon 12 Comment
  UC1125726  Pedicularis densiflora H. A. Jensen Mar 1934 318 Riverside head of Tin Mine Canyon (Cleveland N.F.) 853 Comment
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Oct 30 2011
  POM12896  Pedicularis semibarbata Philip A. Munz 1922-6-28 5880 Riverside Near Toro Peak , Santa Rosa Mts. 2409 Comment
  CLARK-A1528-3592  Pellaea andromedifolia John C. Roos 1952-4-29 5597 Riverside Reche Canyon 457 Comment
  CAS-BOT-BC71398  Pellaea mucronata Lewis S. Rose 1966-12-14 66108 Riverside Chino Canyon, 3 mi. W. of Palm Springs 670 Comment
  CAS-BOT-BC77192  Pellaea mucronata subsp. mucronata C. B. Wolf 1931-5-11 1958 Riverside San Jacinto Mts. - rocky places near Pipe Creek above Hemet Valley 1676 Comment
  RSA0100144  Pellaea mucronata subsp. mucronata Duncan S. Bell, Sandra Llamas, Koto Tikande 2015-7-16 8582 Riverside Santa Rosa Mountains; on a small ridge/summit area just to the south of the summit of Santa Rosa Mountain. 2438 Comment
  SD229013  Pellaea mucronata subsp. mucronata Dick Schwenkmeyer 2012-3-26 673 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
  UC42630  Pellaea mucronata var. californica S. B. Parish and W. F. Parish July 1880 6 Riverside San Jacinto Mts Comment
  RSA228803  Pellaea mucronata var. mucronata Colin M. Wainwright, Larry E. DeBuhr 1972-2-10 612 Riverside Cleveland Nat. Forest. Ca. 8 mi. south of Lake Elsinore, off Forest Route 7S04. Comment
  RSA771629  Pellaea mucronata var. mucronata Orlando Mistretta, Duncan Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4995 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm)., between N34.00456, W116.67238 and N33.99629 and W116.66010 750 Comment
  UCR120159  Pennisetum setaceum Mitch Provance 1998-3-5 185 Riverside Riverside, VABM 1031, Hill traditionally called 'Lionshead', but also referred to as 'Challen Hill', located near the corner of Harrison St. and California Ave. in the Arlington area 305 Comment
  UC54993  Penstemon X parishii H. M. Hall 1897-5-19 567 Riverside canyon of the San Jacinto River San Jacinto Mountains, canyon of San Jacinto River (Southern California) 914 Comment
  POM11271  Penstemon californicus Philip A. Munz 1922-7-3 5976 Riverside Hemet Valley, 2 miles below Kenworthy 1372 Comment
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May 29 2011
  RSA601102  Penstemon centranthifolius A. C. Sanders, J. Goetzen 1996-5-1 18137 Riverside San Bernardino Mtns.: Morongo Indian Reservation, along dirt road in Hathaway Crk., N of Banning. [UTM 10 km cell: NH-1E, 5N. Banning.] 792 Comment
  CAS-BOT-BC265288  Penstemon clevelandii subsp. connatus C. Epling 1937-4-10 s.n. Riverside Near Pinon Flats, San Jacinto Mountains 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
  SD73628  Penstemon clevelandii var. connatus Helen V. Witham 1970-4-29 823 Riverside 22 miles east of Lake Hemet, on Hwy 74. 1299 Comment
  UCR275310  Penstemon heterophyllus var. australis J. Dansie 2016-5-25 36 Riverside San Bernardino Mtns., Cherry Valley, off Edgar Canyon Road 1215 Comment
  POM4523  Penstemon labrosus H. M. Hall 1901-07 2506 Riverside In the vicinity of Strawberry Valley. 1585 Comment
  SBBG7202  Penstemon spectabilis H. and M. Dearing 1948-6-8 4345 Riverside Palms to Pines Hwy, Ribbonwood Comment
  SDSU10970  Penstemon spectabilis Samuel R. Franks 1962-5-19 Riverside San Jacinto Mtns. Comment
  UCR37460  Penstemon spectabilis Steve Boyd 1981-4-29 s.n. Riverside Gavilan Hills, Arroyo del Toro [Bull Canyon] Comment
  NY661185  Penstemon spectabilis var. spectabilis H. K. Sharsmith 1954-7-7 4445 Riverside On highway between Banning and Idlewild, near Fuller Creek, San Bernardino National Forest. 1828.8 Comment
  CAS-BOT-BC330350  Pentachaeta aurea Edmund C. Jaeger 1921-7-14 s.n. Riverside San Jacinto Mountains, Idyllwild 1584 Comment
  UC455814  Pentachaeta aurea I. J. Condit 1910-6-23 Riverside Strawberry Valley San Jacinto Mts. 1524 Comment
  UCR261394  Pentagramma triangularis Joseph Cahill 2011-1-8 111- 19 Riverside Peninsular Range; Santa Ana Mtns., Cleveland National Forest, San Juan Loop Trail, c. 0.5 mi. from eastern trailhead off Hwy 74 590 Comment
  CAS-BOT-BC355991  Perityle emoryi D. E. Breedlove 1962-3-11 1888 Riverside Cat Creek wash, 3 miles southwest of Palm Desert 426 Comment
  CAS-BOT-BC355994  Perityle emoryi Ivan Johnston 1917-4-4 1071 Riverside Colorado Desert. Palm Canyon Comment
  UC565484  Perityle emoryi H. L. Mason 1928-3-10 4248 Riverside road from Indio to Palm Springs Comment
  CAS-BOT-BC167758  Petalonyx thurberi Nancy Ryan Zabriskie; Walter Zabriskie 1971-10-23 452 Riverside Near Andreas Canyon Club gate, South Palm Canyon Drive, Palm Canyon drainage, east slope San Jacinto Mountains 167 Comment
  SEINET10838703  Petalonyx thurberi Jon Ricketson, Heidi H. Schmidt 1992-10-25 Ricketson 4924 Riverside Salton Sea. At the junction of California Highway 111, (Commercial Street), along Vander Veer Road (to North Shore Marina), in the town of North Shore. North end of the Salton Sea, in the Coachella Valley. 60 Comment
  UCR277612  Petalonyx thurberi subsp. thurberi Aaron C. Sedgwick, Joella Adkins, Jennifer Pilapil 2012-8-14 104 Riverside Sonoran (Colorado) Desert, NE of Mecca Hills, south of Hwy I-10, c. 400 m east of Box Canyon Rd. 488 Comment
  RSA557345  Petunia parviflora Julie Greene 1993-5-12 1306 Riverside San Jacinto Wildlife Area; south of gated W-E road, east of Davis Road. 433 Comment
  RSA737122  Petunia parviflora Justin M. Wood 2008-10-15 188 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  CLARK-A1528-277  Peucephyllum schottii Charlotte Stocks 1964-8-15 Riverside Coachella Valley Comment
  RSA770299  Peucephyllum schottii Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4584 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR200265  Peucephyllum schottii J. M. Porter, Orlando Mistretta 2003-6-5 13611 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains. Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running east, above the pour-off 439 Comment
  UCR279243  Peucephyllum schottii A. C. Sanders, Jim Malusa 2017-1-14 42656 Riverside Sonoran (Colorado) Desert, Salt Creek wash, where it passes bend in old Kaiser RR tracks, c. 6 miles east of Dos Palmas 119 Comment
  RSA0103625  Phacelia Duncan S. Bell 2015-9-30 8651 Riverside Santa Rosa Mountains; collecting in the summit area of Asbestos Mountain. 1573 Comment
  POM182078  Phacelia ambigua P. A. Munz 1932-3-14 11974 Riverside Colorado Desert, Coachella Valley, Deep Canyon 91 Comment
  UC284214  Phacelia brachyloba P. A. Munz 1923-6-14 7055 Riverside Glen Ivy Trail to Santiago Peak Santa Ana Mts. 1066 Comment
  UC672729  Phacelia brachyloba Harlan Lewis 1942-6-17 1710 Riverside approx. 2 mi w Pinon Flats Comment
  RSA602426  Phacelia campanularia R. S. Woglum 1935-4-20 613 Riverside Sonoran Desert: Coachella Valley, Palm Springs.. . Comment
  UCR216234  Phacelia campanularia Mike Bell 2008-3-19 034 Riverside Sonoran (Colorado) Desert/San Bernardino Mtns., Bonnie Bell, along Whitewater River c. 2 miles north on Whitewater Canyon Rd. from I-10 freeway 537 Comment
  JEPS2191  Phacelia cicutaria var. hispida M. French Gilman 1845-1 714 Riverside Palm Springs (of Mt. San Jacinto) Mt. San Jacinto Comment
  SDSU18405  Phacelia cicutaria var. hispida C. Matt Guilliams, Jeannine Ross 2008-3-12 523 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. Collections near the Dudleya multicaulis restoration site. 388 Comment
  UCR113167  Phacelia cicutaria var. hispida A. C. Sanders 1998-3-11 21672 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, north of Diamond Valley, near high water line of reservoir under construction 518 Comment
  UCR172786  Phacelia cicutaria var. hispida Wayne Law, Jun Hu 2000-5-16 16 Riverside Peninsular Ranges; Santa Ana Mtns., Eastern edge of Cleveland National Forest, above Temescal Valley in Indian Canyon, 11.8 mi south of Corona 396 Comment
  UCR117376  Phacelia crenulata B. G. Pitzer 1998-2-1 3442 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake, alluvial fan on north side of lakebed, from paved road down to lakebed 427 Comment
  UCR274807  Phacelia crenulata David Fraker, Aaron C. Sedgwick 2012-3-22 027 Riverside Sonoran (Colorado) Desert, Palen Mountains, Coxcomb Monument Road [becomes Palen Pass Rd.] c. 8 miles east of Hwy 177 376 Comment
  SJSU11240  Phacelia crenulata var. ambigua T. N. Seeno 1963-4-12 279 Riverside Sky Valley 10 mi N of Palm Springs 426 Comment
  UCR243510  Phacelia cryptantha Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21086 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, up side canyon approx. 400 m. west of main canyon drainage 1172 Comment
  CLARK-A1045-319  Phacelia distans George K. Helmkamp 1977-3-20 Riverside Morongo Indian Reservation edge of Hathaway Creek, west of the Malki Museum; Cabazon 7.5'Q Comment
  RSA33656  Phacelia distans N. C. Cooper 1944-3-24 1018 Riverside Banning. 701 Comment
  RSA670720  Phacelia distans Bonnie C. Templeton, I. W. Clokey 1930-4-7 1007 Riverside North of Palm Springs. 305 Comment
  SBBG34723  Phacelia distans T. L. Secrest 1950-3-12 Riverside near Indio Comment
  UCD120417  Phacelia distans Geoffrey Levin 1974-3-30 5 Riverside Chino Canyon below the tramway. San Jacinto Mts. Mt. Range. 426 Comment
  UCR120811  Phacelia distans Ian G. Gillespie 2000-4-16 4 Riverside Box Springs Mtns., Two Trees Canyon. 70 m up the trail from Two Trees trailhead 457 Comment
  SEINET10420007  Phacelia distans Norman C. Cooper 1944-3-24 1018 Riverside Banning. 701 Comment
  CLARK-A1528-560  Phacelia fremontii Ellen Predmore 1971-5-3 Riverside 457 Comment
  UCR8339  Phacelia imbricata subsp. patula B. Freeman 1969-7-25 690625- 34 Riverside San Jacinto Mtn., University of California James Reserve, Trailfinders' Camp, near Lake Fulmor, on road from Banning to Idyllwild 1646 Comment
  OBI6306  Phacelia minor Robert F. Hoover 1969-4-13 11226 Riverside 7 mi NW of San Jacinto Comment
  RSA428083  Phacelia minor H. Twining 1888-03 s.n. Riverside Riverside. Comment
  RSA614549  Phacelia minor A. C. Sanders, Giles Waines, Aryavand 1997-3-12 19866 Riverside Lake Skinner area: lower Rawson Canyon, along road NE of Skinner Lake. 457 Comment
  SEINET5501110 Image available Phacelia minor Tim Walker, Sally Walker 1995-5-30 Riverside 0.4 mi E of end of Rt 371 on Rt 74 1494 Comment
  UCR137491  Phacelia minor D. L. Banks, V. W. Steinmann 1997-3-13 1531 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
  UCR44211  Phacelia minor A. C. Sanders 1986-6-1 6560 Riverside San Jacinto Mountains, Trail toward Spitler Peak from 'Hurkey Creek Camp to Bonita Vista' [=Apple Canyon] Road 1829 Comment
  RSA427703B  Phacelia minutiflora E. C. Jaeger 1922-3-29 745 Riverside Chuckwalla Valley Comment
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May 29 2011
  UCR72239  Phacelia neglecta Theo Glenn 1992-4-1 92- 01 Riverside Sonoran (Colorado) Desert, between Eagle Mountain Mine and Eagle Mountain Pumping Station, east of Eagle Mtns. Comment
  UCR241000  Phacelia ramosissima Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 21 Riverside South Coast/Peninsular Range, Riverside, Sycamore Canyon, near the entrance to the park 396 Comment
  RSA180470  Phacelia ramosissima var. latifolia E. W. Lathrop 1960-6-8 4911 Riverside 14 miles west of Murrieta Comment
  CLARK-A1045-177  Phalaris caroliniana George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains vernal pool; Wildomar 7.5'Q Comment
  SD90578  Phalaris caroliniana Robert F. Thorne, Earl Lathrop 1969-5-12 37951 Riverside Santa Rosa Plateau: Mesa de Colorado, Rancho California, small vernal marsh 625 Comment
  UC1265368  Phalaris caroliniana Robert F. Thorne and Earl Lathrop 1969-5-12 37951 Riverside Santa Rosa Plateau Mesa de Colorado; , Mesa de Colorado 624 Comment
  UCR196007  Phalaris caroliniana R. F. Thorne, M. Z. Thorne, W. Wisura 1978-5-21 51994 Riverside Santa Rosa Plateau, Mesa de Colorado 610 Comment
  UCR260963  Phalaris minor Duncan S. Bell 2013-1-30 4454 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
  JEPS41255  Philadelphus microphyllus var. stramineus Carl V. Meyer 1928-7-26 533 Riverside Near Deer Springs; San Jacinto Mt. 2590 Comment
  UC56539  Phlox austromontana H. M. Hall May 17 1901-Jun 1 1901 1912 Riverside Santa Rosa Peak Comment
  RSA459295  Pholistoma membranaceum Martha Hilend 1928-3-11 87 Riverside Morongo Valley, Colorado Desert. Comment
  RSA550020  Pholistoma membranaceum Walter Wisura, A. King, L. Newcomb 1992-4-10 4677 Riverside Gorgonio Pass: Stubbe Canyon N of W-Palm Springs. Comment
  UCR167302  Pholistoma membranaceum Scott D. White 2005-3-29 10829 Riverside San Gorgonio Pass, Cabazon: alluvial fan and benches west of San Gorgonio river and south of I-10 fwy. west of existing gravel quarry, likely to be proposed for quarry expansion 598 Comment
  RSA132729  Phoradendron californicum Del Wiens 1953-12-5 870 Riverside Near junction of road from south end of Joshua Tree Nat. Mon. and U.S. 60 and 70. 152 Comment
  SBBG61555  Phoradendron californicum M. N. Ackley -Feb-1926 498 Riverside Mecca -60 Comment
  JOTR16865  Phoradendron densum Hogan, J. 1974-5-6 34 Riverside Joshua Tree National Park. JUNCTION OF EUREKA PEAK AND UPPER COVINGTON FLATS ROADS 1554 Comment
  RSA49179  Phoradendron densum Philip A. Munz 1949-4-13 13053 Riverside Cottonwood Springs, west end of Eagle Mts. Colorado Desert 1143 Comment
  SD152733  Phoradendron macrophyllum Steve Boyd 1992-2-26 6689 Riverside Santa Ana Mountains, San Mateo Cyn. Wilderness area. San Mateo Cyn from Fisherman's Camp downstream to confluence with Bluewater Cyn. 305 Comment
  RSA297390  Phoradendron pauciflorum Larry E. DeBuhr 1972-2-25 504 Riverside Santa Rosa Mts. San Bernardino National Forest., along forest road 7S02 west of Virgin Springs; on Abies concolor. 2409 Comment
  JOTR36414  Phoradendron serotinum subsp. tomentosum La Doux, Tasha, K. Callahan, M. Harding, M. Levandowski 2013-5-9 3360 Riverside Joshua Tree National Park. Little San Bernardino Mtns; Stubbe Springs, near guzzler and spring on densely vegetated slope (STOP1) 1371 Comment
  JOTR16866  Phoradendron villosum Wanrow, E. 1969-8-13 s.n. Riverside Joshua Tree National Park. BARKER DAM Comment
  RSA520086  Phoradendron villosum Steve D. Boyd, David E. Bramlet 1988-10-8 2878 Riverside Cahuilla Mountain, SW of Anza at head of Bautista Canyon. Along crest of the mountain. Comment
  UC66695  Phoradendron villosum N. K. Berg 1904-3-4 Riverside San Jacinto <R. C.> Comment
  CAS-BOT-BC260906  Phragmites australis W. R. Dudley 1903-12-29 s.n. Riverside Palm Springs Comment
  UCR35271  Physalis acutifolia Ken Chapman 1971-8-29 423 Riverside San Jacinto Valley - W side 473 Comment
  RSA781822  Physalis crassifolia Duncan S. Bell 2011-12-30 3042 Riverside Arica Mountains: southern section of the mountain range within the Palen/McCoy Wilderness area; approximately 2 air miles southwest of Priests Well, or approximately 7 air miles southwest of the ghost town of Rice. 365 Comment
  UCD126806  Physalis crassifolia L. S. Rose 1936-1-1 s.n. Riverside 19 miles north of Indio, Aqueduct Road. 609 Comment
  UCR104642  Physalis crassifolia D. E. Bramlet 1989-5-15 1860 Riverside Peninsular Range, North Domenigoni Hills. S flank of a large knoll in Section 31. Approx. 762 m north of Newport Road and 1.5 km SE of the intersection of Warren Road and Simpson Ave. 549 Comment
  UCR41456  Physalis crassifolia A. C. Sanders, B. Pitzer, D. Charlton, , J. Kniffen, R. Kniffen 1986-3-3 6134 Riverside Sonoran (Colorado) Desert, N foot of the Chuckwalla Mountains, 2.75 mi (airline) SE of Desert Center 367 Comment
  UCR251288  Phytolacca americana A. C. Sanders 2014-5-29 41124 Riverside Riverside, UCR Botanic Garden, weeds along east fence near driveway to Schneider House 366 Comment
  SD136360  Pinus flexilis Reid Moran 1973-7-28 21110 Riverside summit of Toro Peak 2500 Comment
  UC187  Pinus jeffreyi H. M. Hall June 1901 2317 Riverside near Tauquitz Comment
  SEINET11610609  Pinus lambertiana D. A. Charlet, Dene Charlet 2010-5-7 3353 Riverside San Bernardino Mountains, San Jacinto Mountain 2609 Comment
  RSA0077533  Pinus lambertiana G. Wallace 1964-4-26 s.n. Riverside Idlewild area. Comment
  CLARK-A1656-882  Pinus monophylla Jim Cornett 1977-7-14 Riverside San Jacinto Mountains 1341 Comment
  POM310616  Pinus monophylla G. Mansfield-Jones 1956-04 s.n. Riverside Joshua Tree National Monument along road to Juniper Flats 1463 Comment
  UCR131458  Pinus monophylla June Latting 1973-3-1 s.n. Riverside Santa Rosa Mountains., Pinyon Flat along Calif. Hwy 74 above Palm Canyon 1220 Comment
  CAS-BOT-BC79096  Pinus quadrifolia H. M. Hall 1901-6-1 2139 Riverside Santa Rosa Mountains, Coyote Canyon 1524 Comment
  NY62441  Pinus quadrifolia N. H. Holmgren 1969-6-18 3587 Riverside This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC219283  Pinus quadrifolia Munz and Johnston 1922-5-20 5492 Riverside head Hemet Valley; San Jacinto Mts. 1524 Comment
  UCD68448  Pinus quadrifolia Stephen K. Langer 1995-4-8 s.n. Riverside Highway 371, approximately 0.5 miles from junction with Highway 74, Santa Rosa Mountains. 1463 Comment
  UCSB38388  Pinus torreyana Austin, Stan 1969-10-10 Riverside University of California at Riverside landscaping Comment
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May 2 2007
  RSA263777  Piperia cooperi R. Weatherby 1950-4-20 3055 Riverside Hagador Canyon 396 Comment
  UCR12624  Pityrogramma triangularis K. H. Fisher 1968-5-14 3 Riverside Santa Ana Mtns., Santa Rosa Plateau, near De Luz & Saxman Grade Rd where De Luz Creek crosses road c. 8 mi SW of Saxman Grade stone marker 152 Comment
  UCR155155  Plagiobothrys acanthocarpus A. C. Sanders, Kelly Volansky 2005-3-17 29201 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
  UCR80729  Plagiobothrys acanthocarpus Steve Boyd 1992-4-18 6895 Riverside Perris-Aguanga Basin region, Paloma Valley, between Sun City and Murrieta, east of Hwy 215; just SW of the junction of Briggs Road and Scott Road 457 Comment
  HSC86913  Plagiobothrys canescens L. F. LaPre, J. Easton 1988-1-21 Riverside Gavilan Plateau, Steele Peak. Comment
  RSA673469  Plagiobothrys canescens Scott D. White, Tasha La Doux 2000-4-20 7701 Riverside South of Hemet: Gibbel Flat in the Santa Rosa Hills. 610 Comment
  UCR97686  Plagiobothrys canescens A. C. Sanders, G. Helmkamp 1997-3-15 19964 Riverside Lake Skinner area: NE of Skinner Lake in a tributary to Rawson Canyon, along the dirt road 503 Comment
  UCR172241  Plagiobothrys collinus John F. Green 2006-5-10 s.n. Riverside Peninsular Ranges, City of Murrieta; south of the Hogbacks. north of Hunter Road to Ramage Lane, between Calle de Amor on the E and Springview/Kiwebre Road on the W 402 Comment
  LA210033  Plagiobothrys collinus var. californicus Ivan M. Johnston; 1920-5-8 Riverside Jurupa Mountains Comment
  POM13769  Plagiobothrys collinus var. californicus P. A. Munz 1922-4-29 5089 Riverside 0.5 mile south of Lake Elsinore. 381 Comment
  UCR241608  Plagiobothrys collinus var. fulvescens A. C. Sanders, Timothy W. Chumley 2013-4-2 40747 Riverside Peninsular Range, Temescal Canyon between Horsethief Canyon Rd. and Hostettler Rd., near I-15 Fwy, SE of Corona (Lee) Lake 377 Comment
  UCR58494  Plagiobothrys fulvus var. campestris Jeri Hirshberg 1989-4-4 s.n. Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, south of town of Murrieta, and SW of Mesa de Burro 610 Comment
  RSA0106760  Plagiobothrys jonesii Duncan S. Bell, Amanda Turek 2009-3-29 141 Riverside Central section of the Arica Mountains; within the Palen/McCoy Wilderness area; large narrow canyon to the west of Priest Mine. 420 Comment
  RSA785183  Plagiobothrys leptocladus D. E. Bramlet 1992-4-29 2260 Riverside San Jacinto Valley, 8 km SW of Hemet, NW of the intersection of California Ave. and Stowe Rd., c. 250 ft. north of Stowe Rd. and c. 350 ft. west of California Ave. 456 Comment
  UC219101  Plagiobothrys leptocladus P. A. Munz 1922-4-29 5068 Riverside 1/2 mi s Lake Elsinore 381 Comment
  RSA543611  Plagiobothrys tenellus Steve Boyd 1991-5-7 6176 Riverside Santa Ana Mountains, SE and E side of Elsinore Peak. 1006 Comment
  RSA556512  Plantago bigelovii subsp. californica Julie Greene 1993-4-10 1155 a Riverside San Jacinto Wildlife Area. Sloping drainage from Davis Road. 436 Comment
  RSA198936  Plantago erecta Robert F. Thorne, E. W. Lathrop, Ora M. Clark, S. Carlquist 1968-4-18 37446 Riverside Santa Rose Plateau: Mesa de Colorado, Rancho California. 671 Comment
  UCR92096  Plantago erecta Scott D. White, M. Jacobsmeyer 1996-4-20 3948 Riverside Bundy Canyon Road, west of Menifee. c. 4-5 mi west of Interstate Hwy-215 freeway. north of road. 549 Comment
  SD122968  Plantago lanceolata Steve Boyd 1985-7-23 1000 Riverside 5.0 miles west of Ranco California at junction of Rancho California Road and DeLuz Road. 427 Comment
  JOTR35285  Plantago ovata Andre, Jim 2012-4-11 20779 Riverside Joshua Tree National Park. NW Eagle Mountains, along dirt road to Black Eagle Mine, 0.7mi east of road to Cottonwood Spring, 34mi south of Hwy 62 at Twentynine Palms. 729 Comment
  RSA0021552  Plantago ovata Duncan S. Bell 2012-3-4 3136 Riverside Arica Mountains; along old railway line about 4.5 air miles south of the ghost town of Rice. 217 Comment
  UC665820  Plantago ovata Ira L. Wiggins 1941-3-24 9588 Riverside 1 mi n Imperial County line (on e side of Salton Sea); Salton Sea Comment
  UCR20763  Plantago ovata A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1327 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UCR42481  Plantago ovata P. J. Leary 1975-2-15 917 Riverside Mojave/Colorado Desert, Joshua Tree National Monument [now Park], 2 mi. NW of Mission Well 488 Comment
  UCR85084  Plantago ovata A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16031 Riverside Sonoran (Colorado) Desert, Coachella Valley, City of Indio, just SW of Whitewater River channel at Auto Center Drive (Hwy 111) -7.5 Comment
  UCR95259  Plantago ovata D. L. Banks, V. W. Steinmann 1996-4-20 0906 Riverside Agua Tibia Mtns, NW Palomar Mtns; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California- Emerson Oaks Reserve 451 Comment
  UCR125281  Platanus acerifolia A. C. Sanders 2002-11-21 25651 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy' at the confluence of Bixby and Anderson Canyons 366 Comment
  CAS-BOT-BC93218  Platanus racemosa L. R. Abrams 1914-10-31 14309 Riverside Andreas Canon [Canyon]. Near Palm Springs. Comment
  UCR22111  Platanus racemosa Steve Boyd 1980-5-15 275 Riverside Gavilan Hills, Harford Springs County Park, northwest corner of the Gavilan plateau 625 Comment
  CAS-BOT-BC91883  Platystemon californicus Lyman Benson 1932-3-26 3162 Riverside 3 miles north of Temecula. 457 Comment
  RSA445698  Platystemon californicus Jeannette B. Edge 1934-3-18 18853 Riverside [San] Timoteo Canyon. 518 Comment
  RSA691063  Platystemon californicus Scott D. White, Michael Honer 2003-4-9 8981 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
  UC167984  Platystemon californicus Katharine Brandegee and Charlotte M. Wilder May 12 1905-May 17 1905 Riverside Wilders near Riverside; near Riverside Comment
  SD152735  Plectritis ciliosa Steve Boyd, T. Ross, O. Mistretta 1992-3-31 6761 Riverside San Mateo Cyn. Wilderness Area. Tenaja Trail from jtn w/ Morgan Tr. S to Pigeon Spring 671 Comment
  RSA326158  Pleuraphis rigida John F. Emmel 1982-10-5 834 Riverside Northeast slope of Santa Rosa Mountains; near base of mts. Guadalupe Creek 341 Comment
  RSA775120  Pleuraphis rigida Orlando Mistretta, Duncan Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5026 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm)., Between N34.00456, W116.67238 and N33.99629 and W116.66015 750 Comment
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May 22 2012
  RSA787592  Pleuraphis rigida Thomas Stoughton, Jacqueline McConnaughy, Andrew Monks, Malia Volke 2010-4-22 166 Riverside McCoy Wash. N of I-10. Rd going N from Black Rock Rd. S side of private land boundary. 244 Comment
  SEINET3221554 Image available Pleuraphis rigida E. R. Blakley 1962-11-25 5481 Riverside 50 miles west of Blythe on U.S. Highway 60-70 122 Comment
  CAS-BOT-BC326648  Pleurocoronis pluriseta Edmund C. Jaeger 1922-3-18 s.n. Riverside Painted Canyon Comment
  RSA472089  Pleurocoronis pluriseta Christopher Davidson 1980-4-4 9948 Riverside West end of the Orocopia Mountains in a small canyon and wash almost due south of Oro Peak. Comment
  RSA472095  Pleurocoronis pluriseta M. B. Dunkle 1933-3-4 3045 Riverside Painted Canyon 61 Comment
  RSA472096  Pleurocoronis pluriseta M. B. Dunkle 1933-5-6 3431 Riverside Canyon N of Catherdral Canyon Comment
  RSA779687  Pleurocoronis pluriseta Duncan S. Bell 2010-4-2 698 Riverside Arica Mountains: along jagged ridgeline of mountain range; in the Palen/McCoy wilderness., Collecting on a sand ramp located just below the ridgeline on the eastern side that was trapped between the ridgeline and the steep narrow rocky canyons below it. 595 Comment
  UCR201879  Pluchea odorata Justin M. Wood 2008-9-19 142 Riverside SW Perris Basin, Temecula - Murrieta Creek, downstream of First Street Bridge 305 Comment
  CAS-BOT-BC326547  Pluchea sericea Herman Knoche 1919-6-1 592 Riverside Palm Springs Comment
  SD229103  Pluchea sericea Dick Schwenkmeyer, Collection made by Tony Harper 2013-5-8 888 Riverside Little Paradise Camp in Palm Canyon, approx. 8 miles S. of Cathedral City 869 Comment
  UCR120341  Pluchea sericea Mitch Provance 1998-7-23 907 Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 305 Comment
  UC820904  Poa fendleriana subsp. longiligula P. A. Munz and I. M. Johnston 1922-5-21 5505 Riverside Kenworthy; San Jacinto Mts 1402 Comment
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Mar 25 2011
  UCR75543  Poa howellii A. C. Sanders 1993-4-30 13883 Riverside San Bernardino Mtns., along Butterfly Road, which joins Wildwood Canyon Road 0.4 mi. west of Oak Glen Road; between Cherry Valley and the Riverside County line 1100 Comment
  RSA714375  Poa pratensis T. B. Salvato, John Green 2004-5-27 608 Riverside Head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1402 Comment
  UCD91844  Poa pratensis Alan A. Beetle 1946-6-10 4403 Riverside San Jacinto Mountain, Camp Keene Meadow. Comment
  IRVC26840  Poa pratensis subsp. pratensis S. D. White 1997-5-18 5163 Riverside Vista Grande Area: just W of USFS Vista Grande Fire Station (Hwy 243 ca. 10 road miles SE of Banning). San Jacinto Mtns. 1494 Comment
  UCR22190  Poa secunda E. W. Lathrop 1965-4-18 5652 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau; 10 miles west of Murrieta Comment
  UCR220308  Polygonum lapathifolium Bill Wagner 2005-10-7 s.n. Riverside Peninsular Range; Gavilan Hills Region, Cajalco Flood Control Basin site (proposed, since constructed), at NE corner of El Sobrante Rd. and Cajalco Rd. 447 Comment
  UCD170905  Populus fremontii A. C. Sanders 2002-3-5 24890 Riverside San Jacinto River Valley, State St. at the NW edge of the town of San Jacinto, near Mt. San Jacinto College on the south side of the river. 457 Comment
  CHSC101728  Porophyllum gracile Scott D. White 2001-3-13 8158 Riverside Perris/Elsinore basins; Menifee/Sun City area. Valleys and slopes east of Canyon Lake and west of Goetz Rd. 474 Comment
  JOTR01282  Porophyllum gracile Cole, James E. 1941-5-21 757 Riverside Joshua Tree National Park. COTTONWOOD SPRING WASH 914 Comment
  CAS-BOT-BC233729  Portulaca halimoides John Roos; Lucille Roos 1952-10-18 5900 Riverside Hidden Valley Campground, Little San Bernardino Mts. 1219 Comment
  SD82897  Potentilla norvegica Louis B. Ziegler 1971-9-8 Riverside South slope of San Jacinto Mountains, Garner valley, flat slope of Hemet Lake. Comment
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Mar 23 2015
  RSA86299  Potentilla rimicola F. W. Peirson 1924-7-27 5000 Riverside Pinnacle 0.5 miles west of Deer Spring 2439 Comment
  SBBG72480  Potentilla rimicola R. Hoffmann 1929-9-6 Riverside near Tahquitz Pk Comment
  UCR101417  Prosopis glandulosa A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22223 Riverside San Bernardino Mtns., Morongo Indian Reservation, Lion Canyon 671 Comment
  UCR236546  Prosopis glandulosa Carolyn Martus, Joseph A. Betzler, Chezzy W. Brungraber, Lance Woolley 2008-4-15 1216 Riverside Sonoran (Colorado) Desert, 30 miles west of Blythe near Palen Dry Lake, about two miles SSE from the north end of Palen Dry Lake, access via Corn Springs exit from I-10 140 Comment
  UCR44442  Prosopis glandulosa A. C. Sanders, B. Pitzer 1986-4-30 6494 Riverside San Jacinto Valley, Gilman Springs Road, 0.3 mi. SE of Jackrabbit Trail. 457 Comment
  CAS-BOT-BC202362  Prosopis glandulosa var. torreyana A. C. Sanders; Steve Boyd; Mitch Provance 1999-9-14 23075 Riverside San Bernardino Valley: Colton Dunes, dune remnant on Slover Ave. between Pepper Ave and the tank farm, ca. 1 mile due W of Slover Mtn. 320 Comment
  POM348747  Prosopis glandulosa var. torreyana M. B. Dunkle 1933-5-6 3433 Riverside Coachella Valley N of Indio Comment
  RSA652724  Prosopis glandulosa var. torreyana N. D. Hogg 1969-5-3 s.n. Riverside 1/2 mile south of Coachella, on Hwy 111. Desert floor of Coachella Valley Comment
  RSA86976  Prosopis pubescens F. W. Peirson 1920-12-29 2338 Riverside Andreas Canyon near Palm Springs 244 Comment
  SBBG68566  Prosopis pubescens M. D. Clary 1931-1 1242 Riverside Colorado Desert -13 Comment
  RSA453232  Prunus fasciculata Anstruther Davidson s.n. Riverside Colorado Desert. Comment
  SD80104  Prunus fasciculata Nancy Ryan Zabriskie, Walter Zabriskie 1971-4-9 386 Riverside South of Highway 74 between Sugar Loaf CafA^ and entry gate to service road. 1219 Comment
  CAS-BOT-BC151114  Prunus fremontii Walter Knight; Irja Knight; Fred Klein 1969-3-31 2651 Riverside Ca. .2 mi. up Carrizo Rd. from Pines to Palms Hwy. 1097 Comment
  RSA453241  Prunus fremontii E. Crow 1929-2-24 172 Riverside Andreas Mesa, SW Palm Springs. Colorado Desert. Comment
  UC217878  Prunus fremontii P. A. Munz 1922-3-12 4707 Riverside Palm Springs, Andreas Canyon Andreas Canyon; Palm Springs, Andreas Canyon Comment
  UCR265838  Prunus ilicifolia Mitch Provance 2012-5-24 512- 21 Riverside San Bernardino Mountains, Banning, foothills and alluvial fan near border with Beaumont, NE of the intersection of Highland Springs Avenue and Wilson St. 1067 Comment
  RSA454189  Prunus virginiana var. demissa Robert L. Rutherford 1945-5-24 1656 Riverside Big Oaks Canyon, Banning. 1220 Comment
  RSA714376  Prunus virginiana var. demissa T. B. Salvato, John Green 2004-5-27 606 Riverside Head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp. 1402 Comment
  RSA472316  Psathyrotes ramosissima H. S. Gentry 2152 Riverside West side of Colorado Desert -30 Comment
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Apr 8 2011
  UCSC000827  Pseudognaphalium biolettii G. R. Hall 1901-3-31 s.n. Riverside near Riverside Riverside Comment
  SD185157  Pseudognaphalium californicum T. B. Salvato, John F. Green 2004-5-27 708 Riverside Head of Banning Canyon close to the San Bernardino County line, 0.5 mile southeast of Oak Glen Conservation Camp. 1402 Comment
  UC1118482  Pseudognaphalium californicum A. Lewis 1934-3-1 316 Riverside Tin Mine Canyon Cleveland National Forest, Corona Quadrangle, Tin Mine Canyo 609 Comment
  RSA593908  Psilocarphus brevissimus var. brevissimus Steve Boyd, David E. Bramlet 1996-4-19 8600 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  UCR77753  Psilocarphus brevissimus var. brevissimus Steve Boyd, D. E. Bramlet 1991-5-13 6231 Riverside Peninsular Range, Winchester Valley between Winchester and Hemet along upper Salt Creek drainage. Vernal pool association in pasture north of Santa Fe Railroad tracks, west of San Diego Aqueduct 457 Comment
  UCR35041  Psoralea rigida L. B. Ziegler 1966-7-12 062 Riverside San Jacinto Mtns, junction of Hwys 371 and 74 1463 Comment
  CAS-BOT-BC353585  Psorothamnus arborescens var. simplicifolius Marcus E. Jones 1926-6-8 s.n. Riverside Whitewater Comment
  RSA770790  Psorothamnus arborescens var. simplicifolius Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4531 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 487 Comment
  UCR251349  Psorothamnus arborescens var. simplicifolius S. J. Myers 2014-5-21 1065 Riverside Western Edge Sonoran (Colorado) Desert, Whitewater, along Whitewater River at I-10 407 Comment
  CAS-BOT-BC353637  Psorothamnus emoryi E. A. McGregor 1917-3-19 717 a Riverside Indio Sands Comment
  RSA663909  Psorothamnus emoryi C. R. Annable 1995-3-9 2259 Riverside ca. 13 km N of Rancho Mirage. BLM land behind A-1 Cement. Comment
  SEINET3407736 Image available Psorothamnus emoryi var. emoryi Foster, Cazier 1968-5-11 Riverside 3 miles south of Rice Comment
  SEINET2063921 Image available Psorothamnus schottii Unknown 1965-3-7 Riverside Directly 3 miles E of Thousand Palms. 91 Comment
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Mar 22 2019
  UCR161369  Psorothamnus schottii Mark A. Elvin 2005-4-26 4224 Riverside Northern Sonoran (Colorado) Desert, Coachella Valley: N of Agua Caliente Indian Reservation; N of Ramon St; 3km NW of Thousand Palms 183 Comment
  UCSB52556  Psorothamnus schottii Cowan, Clark 1978-4-23 Riverside ESE slope above San Jacinto tramway parking lot, Chino Canyon 570 Comment
  RSA101226  Psorothamnus spinosus David B. Dunn 1947-7-12 2952 Riverside Pushawalla Canyon, Indio Hills. 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
  UC6909  Pterostegia drymarioides H. M. Hall June, 1901 2080 Riverside s. slopes in vicinity of Chalk Hill; San Jacinto Mts. 1402 Comment
  UCR158350  Pterostegia drymarioides A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30080 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
  RSA0081611  Pyrola aphylla F. W. Peirson 1924-7-27 4988 Riverside Dark Canyon, San Jacinto Mts. 1905 Comment
  CAS-BOT-BC466112  Pyrola picta Edmund C. Jaeger 1921-7-13 91 Riverside Stone Creek, San Jacinto Mts. 1706 Comment
  UCR3710  Pyrola picta Frank C. Vasek 1964-7-25 640725- 17 Riverside San Jacinto Mountains, Dark Canyon near Wet Canyon Campground Comment
  RSA0106805  Quercus Jeremiah George 2012-8-7 70812 -1 Riverside Beaumont, Western Knolls, north central slope of eastern half of bench between Hwy 60 and Oak Valley Parkway, east of Potrero Blvd. 747 Comment
  CAS-BOT-BC61825  Quercus agrifolia Earl W. Lathrop 1965-9-22 6029 Riverside 8 miles west of Murrieta Comment
  SD152836  Quercus agrifolia Steve Boyd, Tim Ross 1992-5-5 7217 Riverside San Mateo Canyon Wilderness Area; Oak Flats area east of Verdugo Potrero. 730 Comment
  UCSB1039  Quercus agrifolia var. agrifolia Keator, Glenn 1959-05 Riverside foothills of northern Mt. San Jacinto Comment
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Mar 2 2014
  SD254631  Quercus berberidifolia Mitch Provance 2012-1-25 17375 Riverside San Timoteo Canyon, SW end along SCE powerline access roads between El Casco Substation and Hgighway 60. 654 Comment
  UCR241939  Quercus berberidifolia A. C. Sanders, Timothy W. Chumley 2013-4-5 40776 Riverside Peninsular Range, Temescal Canyon, east of Glen Ivy near where Temescal Canyon Rd. passes under I-15 318 Comment
  CAS-BOT-BC62438  Quercus chrysolepis Winifern W. Swarth 1914-9-27 s.n. Riverside Strawberry Valley, San Jacinto Mts. 1828 Comment
  CDA39789  Quercus cornelius-mulleri Mike Lahti, Suzanne Nikau Counter 2014-1-13 PDR# 331 P06141760 Riverside Pinyon Flats Campground along Highway 74 near Mountain Center. San Bernardino National Forest. 0 Comment
  POM266353  Quercus cornelius-mulleri J. C. Roos 1942-5-1 1132 Riverside Morongo Canyon. Comment
  SD126462  Quercus cornelius-mulleri A. C. Sanders, E. J. Lawlor 1988-10-22 8720 Riverside Santa Rosa Mountains, Pinyon Flats area, near the Dolomite Mine on the trail to Horsethief Creek 1200 Comment
  UCR118000  Quercus engelmannii J. Zabriskie 1978-9-10 1155 Riverside Santa Rosa Mtns, Boyd Deep Canyon Desert Research Center, intersection of Horsethief Creek and Cactus Spring Trail 1037 Comment
  UCR135856  Quercus engelmannii A. C. Sanders 2004-4-20 27577 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  SBBG58950  Quercus kelloggii R. Hoffmann 1929-9-10 Riverside San Jacinto Mtns Comment
  UCD170552  Quercus kelloggii D. O. Burge 2017-5-20 2280 Riverside San Jacinto Mountains, Lake Fulmore area, University of California James Reserve. 1640 Comment
  RSA741216  Quercus wislizeni Scott D. White, Justin M. Wood 2008-6-16 12110 Riverside San Jacinto Mountains: Fobes Canyon, +/- 1 mile up Fobes Ranch Road from Fobes Spring. 1540 Comment
  RSA762184  Quercus wislizeni Peter Guiden, C. Martinez, Naomi S. Fraga, L. McDade 2010-8-14 75 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  UC1212091  Quercus wislizeni Peter M. Ray 1948-11-27 1311 Riverside Hall Canyon San Jacinto Mts. Comment
  UC527702  Quercus wislizeni var. frutescens C. B. Wolf 1931-10-14 Riverside 100 yds above Fish Hatchery (Snow Creek, n base of San Jacinto Mts); San Jacinto Mountains, Snow Creek 609 Comment
  UCSB34692  Quercus wislizeni var. frutescens Nixon, Kevin; Hendon, Emily 1980-5-23 Riverside 15.5 mi northwest of Idyllwild on Calif. Hwy 243; San Jacinto Mtns Comment
  RSA525415  Rafinesquia californica Steve Boyd, Laurel Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4523 Riverside San Jacinto Mountains, Vail Lake area, rolling terrain at junction of Highway R3 and Powerline Road, NE of the lake. Comment
  RSA614300  Rafinesquia californica D. L. Banks, Victor W. Steinmann 1997-3-13 1508 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
  CAS-BOT-BC362627  Rafinesquia neomexicana John H. Thomas 1957-3-30 6570 Riverside Joshua Tree National Monument. About 3 miles southeast of White Tank near the road to Cholla Cactus Garden. About 20 miles northeast of Indio 883 Comment
  UCD135356  Rafinesquia neomexicana Geoffrey Levin 1976-3-27 701 Riverside on south side of Chino Canyon, west of Palm Springs. Colorado Desert. 457 Comment
  UCR166548  Rafinesquia neomexicana Scott D. White, Jennifer H. Jones, James Huelsman 2005-4-14 10884 Riverside Sonoran (Colorado) Desert, Eastern Coachella Valley, bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  UCR202599  Ranunculus sceleratus Scott D. White, Justin M. Wood 2008-7-9 12441 Riverside San Jacinto Mountains, K Flat, from large pond downstream to meadow 1463 Comment
  SEINET11261099  Raphanus sativus N. Duane Atwood 1993-3-26 17687 Riverside 6 miles NE of San Juan Capistrana along Hwy 74.; 0 Comment
  RSA0054954  Rhamnus californica Keith E. Hoffmaster 1934-4-8 149 Riverside Santa Ana mts. [Orange or Riverside]. Comment
  UC18518  Rhamnus californica subsp. californica H. M. Hall 1897-5-27 575 Riverside Coldwater Canyon Elsinore Mts. Comment
  POM243758  Rhamnus ilicifolia Percy C. Everett 1935-6-17 7138 Riverside Coldwater Canyon, trail to Santiago Pk. 1/2 mi. above Glen Ivy Resort. 457 Comment
  RSA484732  Rhamnus ilicifolia A. C. Sanders, E. J. Lawlor 1988-10-22 8735 Riverside Pinyon Flats area Santa Rosa Mountains, along the trail about 1/2 mi. W of the Dolomite Mine. 1200 Comment
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Sep 10 2011
  UC592701  Rhamnus ilicifolia P. C. Everett 1935-6-18 Riverside about 1.5 mi n (below) Coldwater Canyon main divide motorway (Coldwater Canyon Trail); Santa Ana Mts., Coldwater Canyon 1280 Comment
  UC18587  Rhamnus tomentella subsp. cuspidata H. M. Hall 1901-6 Riverside vicinity Strawberry Valley; San Jacinto Mountains 1584 Comment
  CSUSB1005  Rhododendron occidentale Stan R. Szarek 1970-11-14 Riverside San Jacinto Mountains San Jacinto Mountains. Collected below campsites at Fuller Mill Creek. Rooted 3 feet from creek. Comment
  JEPS58762  Rhododendron occidentale W. L. Jepson 2271 Riverside San Jacinto Mountain, Dark Canyon Dark Canyon; San Jacinto Mountain, Dark Canyon 1676 Comment
  UCR77708  Rhus integrifolia Steve Boyd 1991-3-17 5472 Riverside Jurupa Hills, north of Glen Avon. S flank, just west of Soto St to summit east of Pyrite Cyn. Comment
  RSA346257  Rhus ovata R. F. Thorne, W. A. Tilforth, L. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54059 Riverside Branch Ravine W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater PO. 610 Comment
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Apr 30 2011
  SD136939  Rhus trilobata var. anisophylla Steve Boyd, Tim Ross, Dave Bramlet 1993-5-12 7325 Riverside Santa Ana Mountains, San Mateo Cyn Wilderness Area. San Mateo Canyon, from confluence with Los Alamos Cyn to confluence with Tenaja Cyn 365 Comment
  POM305346  Ribes indecorum Henry J. Ramsey 1938-2-25 672 Riverside Temecula Comment
  POM20019  Ribes nevadense Mary F. Spencer 1923-6-12 2174 Riverside Idyllwild, San Jacinto Mountains. 1646 Comment
  RSA171333  Ribes roezlii J. D. Olmsted 1962-5-3 3500 Riverside San Jacinto Mts, Rnear top fo Thomas Mt. 1951 Comment
  UC1127543  Ribes roezlii R. St. John 1929-5-21 28 Riverside Keen Camp San Jacinto Quadrangle 1219 Comment
  RSA628428  Robinia pseudoacacia A. C. Sanders, K. C. Rose 1999-6-18 22802 Riverside Skinner/Domenigoni area: French Valley, E side of Washington Ave., 1/2 mile S of Rawson Rd. 439 Comment
  CDA36186  Romneya trichocalyx A. C. Sanders 2010-5-19 38414 Riverside Riverside West 7.5; Peninsular Range/San Bernardino Valley Riverside, western end of North Hill, edge of Fairmont Park, above intersection of Redwood Dr. and Randall Rd. Comment
  RSA614689  Rosa californica A. C. Sanders, T. Schram, D. Wappler 1994-10-6 15791 Riverside (N slope): nameless tributary of Azalea Creek, Twin Pines Creek drainage. 1192 Comment
  JOTR32380  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
  RSA596773  Rumex hymenosepalus D. L. Banks, K. D. Hedge 1996-5-16 1043 Riverside NW Palomar Mountains; Agua Tibia Mountains; N foothills of Dorland Mtn., S of Temecula Creek; 0.4 miles E of Pauba Road on the N side of Los Caballos Road, along the broad, sandy, southern alluvial bench of Temecula Creek. 370 Comment
  UCR115996  Rumex hymenosepalus A. C. Sanders, Pam MacKay, E. J. Lawlor, C. L. Sanders 2000-3-19 23319 Riverside Shipley-Skinner Reserve area, Diamond Valley, off old Rawson Rd. north of Crown Valley, on future bed of Diamond Val. Reservoir, now filling 488 Comment
  UCR216251  Rumex pulcher Oleg Pryadko 2008-5-2 079 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
  CDA23193  Rumex salicifolius Scott D. White 1998-7-31 6930 Riverside Peninsular Ranges; San Jacinto Mountains; Idyllwild Area: Strawberry Creek between crossing at Circle Drive and Humber Park Comment
  RSA466123  Rumex salicifolius N. C. Cooper 1949-6-29 4340 Riverside Pine Cove, San Jacinto Mountains. 1829 Comment
  SD185297  Rumex salicifolius T. B. Salvato, Melissa Clemons 2005-6-23 1296 Riverside Temescal Valley; Walker Canyon, 1.5 mi due E of Alberhill, N of Hwy I-15, stream at base of side canyon 412 Comment
  RSA605752  Sagina apetala A. C. Sanders, G. K. Helmkamp 1996-3-17 17995 Riverside Cathedral City, Cathedral Plaza, Hwy 111 at Date Palm Dr. 91 Comment
  SD167147  Sagina apetala T. B. Salvato, A. C. Sanders 2005-5-17 923 Riverside San Jacinto River east of Valle Vista, just downstream from the Forest Service boundary and north of California Highway 74. 548 Comment
  CLARK-A1656-793  Salazaria mexicana Jon Mark Stewart 1982-5-15 Riverside San Jacinto Mountains 975 Comment
  UCR17313  Salazaria mexicana N. R. Zabriskie, W. W. Zabriskie 1972-3-30 504 Riverside San Jacinto Mtns, below Pinyon Crest in Chapman's Rancheros area toward Dos Palmas Spring, NW of Hwy 74. Site 11. 1098 Comment
  UCR243157  Salazaria mexicana LeRoy Gross, Jackie McConnaughy, Drew Monks, Tommy Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4292 Riverside Transverse Ranges; San Bernardino Mountains, Whitewater Canyon Bioblitz: From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat Canyon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W. Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon 871 Comment
  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
  UC483064  Salix exigua F. R. Fosberg 1932-3-13 8082 Riverside upper palm grove along stream Thousand Palms Canyon; Coachella Valley, Thousand Palms Canyon Comment
  UCR128251  Salix exigua A. C. Sanders, Kelly Volansky 2003-10-16 27341 Riverside Moreno Valley, lower Pigeon Pass Valley, NE corner of intersection of Old Lake Dr. and Pigeon Pass Rd. 534 Comment
  UCR92270  Salix exigua Scott D. White 1995-8-23 3571 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
  SD137625  Salix exigua var. hindsiana Darin L. Banks, Steve Boyd 1995-3-16 101 Riverside Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove, Arroyo Seco drainage 555 Comment
  HSC101317  Salix gooddingii A. C. Sanders, D. L. Sanders 2010-11-28 38697 Riverside Peninsular Range; NW Gavilan Hills: Angel Canyon Falls, above Home Gardens at the western edge of Riverside, 4.8 km NW (303 deg. ) of Lake Mathews dam, above intersection of Lincoln St. & Indiana Ave 232 Comment
  LA208658  Salix gooddingii Carl Epling; J. Ewan June 1933 Riverside S shore Lake Elsinore Comment
  SD232796  Salix gooddingii A. C. Sanders, S. Hawkins, J. Geotzen & D. Freeman 1996-5-1 18103 Riverside San Bernardino Mtns.: Morongo Indian Reservation, vicinity of natural pond & bog at SE edge of Burro Flats. 1096 Comment
  CAS-BOT-BC108216  Salix hindsiana Mrs. H. P. Bracelin 1932-4-12 602 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  RSA0038292  Salix hindsiana H. P. Bracelin 1932-4-12 600 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  POM295748  Salix laevigata Lyman D. Benson 1946-4-15 12046 Riverside Canyon on Twenty-nine Palms Road from Whitewater. 457 Comment
  RSA543185  Salix laevigata Steve D. Boyd 1991-3-17 5502 Riverside Jurupa Hills, N of Glen Avon. Cove on S flank, just W of Soto St. from white limestone outcrops to summit E of Pyrite Canyon. Comment
  UCR121087  Salix laevigata A. C. Sanders, Mark Elvin, M. S. Enright 2002-4-16 24973 Riverside The Badlands, Laborde Canyon and adjacent slopes and side canyons, 1 mile east of Mt. Eden, SW of Beaumont 610 Comment
  UCR41220  Salix laevigata N. M. Fellows 1985-5-3 78 Riverside San Jacinto Mtns, Oasis de los Osos Preserve, off Snow Creek Canyon at the N foot of the San Jacinto Mtns, 1 mi west of Snow Creek Village. 488 Comment
  JOTR36411  Salix lasiolepis La Doux, Tasha, K. Callahan, M. Harding, M. Levandowski 2013-5-9 3359 Riverside Joshua Tree National Park. Little San Bernardino Mtns; Stubbe Springs, near guzzler and spring on densely vegetated slope (STOP1) 1371 Comment
  POM360929  Salix lasiolepis M. V. Hood 1945-3-26 s.n. Riverside Cottonwood Creek near Aguanga. Riverside and San Diego county line. 610 Comment
  RSA543186  Salix lasiolepis Steve D. Boyd 1991-3-17 5503 Riverside Jurupa Hills, N of Glen Avon. Cove on S flank, just W of Soto St. from white limestone outcrops to summit E of Pyrite Canyon. Comment
  SD137623  Salix lasiolepis Darin L. Banks, Steve Boyd 1995-3-16 90 Riverside Cleveland National Forest; N slope of Agua Tibia Mtn. E of Dripping Springs Alcove, Arroyo Seco drainage 512 Comment
  SD229281  Salix lasiolepis Dick Schwenkmeyer 2012-8-28 825 Riverside Fuller's Mill camp, 2.6 mi. east of intersection of highway 243 and Fuller's Mill road, 7.5 miles north of Idyllwild. 1799 Comment
  UCR97694  Salix lasiolepis A. C. Sanders, G. Helmkamp 1997-3-15 19969 Riverside Lake Skinner area: lower Rawson Canyon, along the dirt road toward Bachelor Mountain 457 Comment
  CAS-BOT-BC128377  Salix lasiolepis var. lasiolepis Joseph Andorfer Ewan 1933-3-19 10902 Riverside Santa Ana River bottoms at Prada Comment
  RSA775448  Salvia apiana Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4451 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 488 Comment
  SEINET7048059  Salvia apiana Steven R. Hill 2001-4-29 33536 Riverside Whitewater Canyon, along Whitewater River, east side of canyon, east of Whitewater Canyon Road, about 2 miles north of Route I-10. Elevation about 1800 feet. Comment
  UCR214322  Salvia apiana A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38382 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
  UCR262279  Salvia apiana A. C. Sanders 2006-5-13 32280 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, end of Los Caballos Road in vicinity of water tank 488 Comment
  RSA5471  Salvia apiana var. compacta Carl B. Wolf 1932-5-24 s.n. Riverside 0.5 mile below the Fish Hatchery, Snow Creek, north base of San Jacinto Mountains 549 Comment
  RSA736954  Salvia carduacea Justin M. Wood, Scott D. White, Brandy Ulrich 2008-7-15 21 Riverside Aguanga Basin / San Jacinto Mountain foothills: W of Anza Valley, adjacent to Cave Rock Rd. Approx. 1/4 mile E of Cahuilla Indian Reservation. 1215 Comment
  RSA401485A  Salvia columbariae Anstruther Davidson 1896-07 s.n. Riverside San Jacinto Mtns. Comment
  RSA401486A  Salvia columbariae N. R. Zabriskie, Walter Zabriskie 1973-4-25 655 Riverside On slopes east of Hwy 74 opposite Black Hill; Deep Canyon drainage area, N slope Santa Rosa Mts. 915 Comment
  RSA523480  Salvia columbariae Steve Boyd, T. S. Ross, L. Arnseth 1990-3-29 3940 Riverside Vail Lake area, summit of Big Oak Mtn, N. of lake. 793 Comment
  RSA628480  Salvia columbariae A. C. Sanders 1994-5-30 14600 Riverside NNE of Beaumont at Highland Springs, hills N of the end of Bellflower Ave. at Dutton St. 950 Comment
  RSA783218  Salvia columbariae J. D. Olmsted 1962-6-23 5228 Riverside 1/2 mile south of conservation-detention school east of Oak Glen, southeast of San Bernardino Mountains 1524 Comment
  SD125662  Salvia columbariae Michael Theroux 1983-4-16 536 Riverside Black Mt, 2.5 Mi W of Lake Isabella at Wofford Hts., N Side of Hwy 155, Boundary of Sequoia Nat Forest 1128 Comment
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Aug 26 2014
  SFV4255B  Salvia columbariae W. A. Emboden, Jr. 1962-4-26 2050 Riverside Roadside 2 miles west of Anza on road from Anza to Highway 79. -15 Comment
  UCR172785  Salvia columbariae Wayne Law, Jun Hu 2000-5-16 18 Riverside Peninsular Ranges; Santa Ana Mtns., Eastern edge of Cleveland National Forest, above Temescal Valley in Indian Canyon, 11.8 mi south of Corona 396 Comment
  UCSB11998  Salvia columbariae Schevill, Peggy 1963-5-5 Riverside Joshua Tree Woodland; About 5 miles north by northwest; Pinyon Flats Campground; Calif Hwy 74 1021 Comment
  JOTR31088  Salvia dorrii var. pilosa La Doux, Tasha, T. Herskovits, B. Truesdell, M. Wheeler 2010-5-6 2350 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Cobble toe slopes at the base of Ryan Mountain, north end of Lost Horse Hills (Stop 3) Comment
  RSA356609  Salvia eremostachya Robert F. Thorne 1966-10-15 41814 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway. Comment
  UC883920  Salvia greatae C. Epling Apr 1937 Riverside Canyon n of Hidden Spring; Orocopia Mtns. Comment
  UC1287000  Salvia mellifera C. L. Hitchcock 1966-3-16 24181 Riverside 0.25 mi w Aguanga Comment
  UCLA69827  Salvia mohavensis C. Epling and Wm. Robison 1933-6-27 Riverside 5 mi s Gold Coin Mine; Little San Bernardino Mts. Comment
  UC1713564  Salvia pachyphylla H. M. Hall 1897-8-11 809 Riverside e side San Jacinto Mt. 2133 Comment
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Jul 23 2008
  UC219565  Salvia pachyphylla P. A. Munz 1922-6-25 5813 Riverside road from Vandeventer to Santa Rosa; Santa Rosa Mts. 1524 Comment
  UCR35325  Salvia pachyphylla L. B. Ziegler 1970-8-28 418 Riverside Santa Rosa Mtns, Santa Rosa Mountain 2439 Comment
  RSA14215  Salvia vaseyi P. A. Munz, I. M. Johnston 1922-5-7 5285 Riverside Colorado Desert: Mouth of Dry Morongo Wash 366 Comment
  UC597618  Salvia vaseyi Philip A. Munz 1937-5-29 15146 Riverside Dead Indian Creek Plants of Southern California, N base of Santa Rosa Mts. 457 Comment
  RSA718575  Salvia vaseyi Michael Honer, L. Hulse 2004-4-3 1894 Riverside Nameless canyon appx. 1 mi. W of Pushawalla Cyn., leading up to MWD aqueduct. 488 Comment
  UC889777  Sambucus mexicana P. A. Munz 1922-6-24 5791 Riverside Pipe Creek San Jacinto Mts., Hemet Valley 1402 Comment
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Mar 25 2011
  UCR139619  Sambucus mexicana A. C. Sanders 2004-6-30 28383 B Riverside Perris-Aguanga Surface/Menifee Valley Region, Paloma Valley, large rocky hill (1762 ft.) 1 mi. east of Murrieta Rd. and 1 mi. north of Bundy Canyon Rd., c. 5 miles due south of Sun City 518 Comment
  UCR140729  Sambucus mexicana A. C. Sanders 2004-5-12 27884 Riverside Elsinore Basin Region, Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek 378 Comment
  UCR207188  Sambucus mexicana Darren T. Hasegawa 2007-4-17 s.n. Riverside Peninsular Range, Box Springs Mountain Park, Riverside, c. 1.5 mi. east of 60 fwy. 427 Comment
  UC106101  Sanicula arguta Alderson 442 Riverside Comment
  SEINET273147  Sanicula bipinnatifida A. C. Sanders 1997-3-26 20137 Riverside Lake Skinner Area; large clay patch adjacent to the Skinner entrance rd ca 1 km NE of Borel Rd. UTM 10km cell; MH-9E 473 Comment
  UCR117319  Sanicula bipinnatifida A. C. Sanders, W. W. Wright, J. Latting, et al. 1975-5-4 728 Riverside Santa Rosa Plateau, Santa Ana Mtns., Mesa de Burro 610 Comment
  UCR91064  Sarcodes sanguinea Joan Callahan 1996-6-3 s.n. Riverside San Jacinto Mtns, southern Idyllwild, 26281 Lookout road, near Marion View Rd. 1616 Comment
  UCR112480  Sarcostemma cynanchoides A. C. Sanders, Mitch Provance, T. B. Salvato 2000-4-18 23328 Riverside Coachella Valley, along Dillon Rd. at junction with Tyler, north of I-10, east of Indio and north of Coachella 5 Comment
  CAS-BOT-BC110658  Schismus Elizabeth McClintock 1964-4-8 342 Riverside Snow Canyon, east side of Mount Jacinto. Comment
  UCR260313  Schismus arabicus A. C. Sanders, Jim Malusa 2015-3-10 41382 Riverside Sonoran (Colorado) Desert, north end of Chocolate Mountains, eastern canyon at Tabaseca Tank, US Navy Chocolate Mountains Aerial Gunnery Range 611 Comment
  UCR281198  Schismus arabicus Michael D. Wilcox 2017-4-18 s.n. Riverside Sonoran (Colorado) Desert, 1 mile long segment of Palm Canyon Wash, centered on Hwy 111 crossing, city of Palm Springs 165 Comment
  SBBG101676  Schismus barbatus S. Boyd with T. Ross, M. Hammitt 1991-5-2 6050 Riverside SW and W flanks of Billy Goat Mtn, 3 mi N of Hwy 79, 1 mi W of Hwy 371, N of Aguanga 600 Comment
  SEINET10602611  Scribneria bolanderi Steve Boyd 1995-5-13 Boyd 8510 Riverside Santa Ana Mountains, west of "Onion Hill", southeast of Elsinore Peak area along trail following old Main Divide Road grade. "Onion Hill" with grassland of Stipa pulchrain areas of heavy clay soil, surrounded by chaparral of Adenostoma fasciculatum, Ceanothus crassifolius, Quercus berberidifolia, Salvia mellifera, and Eriogonum fasciculatum on well-drained granitic soils. 3300 Comment
  RSA0120311  Scrophularia californica Duncan S. Bell 2016-4-16 9316 Riverside Whitewater Watershed; Whitewater Canyon; collecting in Rainbow Canyon, approximately 2.5 air miles east northeast of Kitching Peak. 1023 Comment
  UC1618461  Scrophularia californica L. A. Gill, H. S. Gentry 1979-5-25 2550 Riverside Murrieta: Howard Scott Gentry Experimental Ranch Comment
  SD236321  Scutellaria bolanderi subsp. austromontana A. C. Sanders, Mitch Provance 2008-7-11 35803 Riverside Peninsular Range; San Jacinto Mtns.: Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station 1449 Comment
  RSA247367  Scutellaria siphocampyloides Gary D. Wallace 1966-7-3 645 Riverside San Jacinto Mountain: Thomas Mountain, southeast of Idyllwild. Comment
  UCR193456  Scutellaria siphocampyloides A. C. Sanders, Tim Thomas, T. B. Salvato, Mitch Provance 2008-7-1 35644 Riverside Peninsular Range; San Jacinto Mtns., May Valley, along nameless tributary of Herkey Creek NW of Bonita Vista Rd., 3/4 mi. SW of Fleming Ranch 1555 Comment
  RSA0097130  Searsia lancea Marc A. Baker 2015-7-2 18374 Riverside The Badlands, 15 km SE of central San Bernardino, 1.6 km south of San Timoteo Wash. 486 Comment
  RSA603301  Sedum niveum R. E. Riefner 1997-8-7 97 -241 Riverside Santa Rosa Mountain: near summit 2439 Comment
  RSA192258  Selaginella bigelovii Earl W. Lathrop 1960-4-28 4769 b Riverside 14 miles west of Murrieta Comment
  UC577086  Selaginella bigelovii Lewis S. Rose 1934-12-25 34495 Riverside 10 mi n Whitewater (T Cross K Ranch); Mission Canyon Comment
  UCR135835  Selaginella bigelovii A. C. Sanders 2004-4-20 27538 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  CAS-BOT-BC62256  Selaginella watsonii Carl B. Wolf 1932-8-5 3976 Riverside San Jacinto Mts., summit of San Jacinto Peak 3293 Comment
  UCR194220  Senecio flaccidus Scott D. White, Angelia Carey 2004-6-4 10479 B Riverside San Jacinto Mtn Foothills, San Jacinto River wash and adjacent alluvial benches, near Indian Creek confluence 534 Comment
  JOTR36097  Senecio flaccidus var. douglasii La Doux, Tasha, K. Matthews, S. Szabo, B. Truesdell, J. Van Warmerdam 2007-10-4 3374 Riverside Joshua Tree National Park. Little San Bernardino Mountains: Convergence of Lower Covington Flat and Smith Water Canyon (STOP3). 1362 Comment
  RSA792715  Senecio flaccidus var. douglasii A. C. Sanders, John F. Green 2012-6-1 40232 Riverside Temescal Canyon, south of I-15 between Horsethief Cyn. Rd. and Hostettler Rd. 368 Comment
  JOTR16613  Senecio flaccidus var. monoensis Moore, Sue 1968-3-25 s.n. Riverside Joshua Tree National Park. 731 Comment
  UCR244440  Senecio flaccidus var. monoensis Jim Andre 2012-4-16 20930 Riverside Mojave/Sonoran Desert Transition, Joshua Tree National Park; along Cottonwood Springs Rd, 2.4 mi. north of Cottonwood Visitor's Center 956 Comment
  SD229164  Senegalia greggii Dick Schwenkmeyer 2012-11-6 867 Riverside West fork of Palm Canyon, Agua Caliente Indian Reservation, 4.7 mi. south of the intersection of South Palm Canyon Drive and East Palm Canyon Drive, Palm Springs. 227 Comment
  SBBG124871  Sequoia sempervirens S. C. White, J. M. Wood 2009-5-22 12922 Riverside Halfway Spring, accessed via Old Control Rd 1159 Comment
  CAS-BOT-BC438209  Sesuvium verrucosum Steve Boyd; Darin Banks 1994-9-29 8372 Riverside Lake Elsinore, floodplain east of dike along San Jacinto River, west of Sedco Hills community. 381 Comment
  SEINET3127006 Image available Sesuvium verrucosum A. C. Sanders, Richard Dwerlkotte 2010-3-22 37515 Riverside Sonoran (Colorado) Desert: Chuckwalla Valley, 2 mi. ESE (98 degrees) of Sidewinder Well, south end of Palen Dry Lake, SW of Palen Mtns. (Sidewinder Well 7.5' Q.). 129 Comment
  UC465735  Sesuvium verrucosum J. E. Roadhouse Aug. 1905 505 Riverside California Ave. Riverside Comment
  UCR522  Setaria parviflora Frank C. Vasek 1959-7-17 590717- 10 Riverside Riverside, residential garden of F.C. Vasek, 636 Sandalwood Court 335 Comment
  UC1026580  Setaria verticillata John C. Roos 1952-5-14 5660 Riverside corner Iowa Ave. & 8th. St. e. of Riverside 304 Comment
  UCR100569  Sibaropsis hammittii Steve Boyd, T. S. Ross 1992-3-31 6771 Riverside Santa Ana Mtns, Elsinore Peak 1024 Comment
  CLARK-A1528-619  Sidalcea malviflora subsp. malviflora Charlotte Stocks 1962-5-23 Riverside San Jacinto Mountains Comment
  POM2959  Sidalcea malviflora subsp. sparsifolia Robinson, Crocker 1916-3-29 s.n. Riverside Santa Ana Mountains, canyons near Murietta. Comment
  RSA614623  Sidalcea malviflora subsp. sparsifolia D. L. Banks 1997-3-29 1573 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. The headwaters of Pala Creek at the southern extremity of the Reservation, north the Riverside / San Diego County line border., West of the intersection of Magee Truck Trail and Moreno Road including a large area of vernally wet grassland at the extreme southwestern corner of the Reservation. 390 Comment
  UC18905  Sidalcea malviflora subsp. sparsifolia Mrs. Gregory 1890-1 Riverside at San Jacinto Comment
  CLARK-A1528-3243  Sidalcea neomexicana John C. Roos 1966-5-19 Riverside San Jacinto Valley Comment
  CAS-BOT-BC109428  Sidotheca emarginata F. M. Reed 1908-7-14 2447 Riverside San Jacinto Mountains. Ridge on South side of Tahquitz Mountain. 2438 Comment
  RSA561060  Silene antirrhina Steve Boyd, Timothy S. Ross, D. E. Bramlet 1993-5-12 7353 Riverside Southern Santa Ana Mountains, Sant 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. 365 Comment
  CAS-BOT-BC389580  Silene parishii H. M. Hall 1897-8-1 791 Riverside San Jacinto Mts. Comment
  RSA65036  Silene parishii var. viscida F. W. Peirson 1924-7-27 5001 Riverside Pinnacle, 0.5 miles west of Deer Springs, Comment
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Nov 17 2011
  UCR201999  Silene verecunda Mike Misenhelter 2005-6-8 s.n. Riverside Peninsular Range; San Jacinto Mtns., Idyllwild, south edge of town, 37 acre Lane property south of the intersection of Hwy 243 and Marian View Dr., west edge of Hwy 243 and off Robin Dr., West Ridge Rd., and Chickadee Way 1610 Comment
  CAS-BOT-BC202937  Simmondsia chinensis P. C. Everett 1939-7-7 9524 Riverside North of Temecula-Aguanga Rd. on road to Hemet 762 Comment
  RSA0105948  Simmondsia chinensis Alan Romspert 2000-4-14 s.n. Riverside West of Dupont road, Chuckwalla Mountains. Comment
  SJSU7898  Simmondsia chinensis R. C. McGehee 1970-4-30 249 Riverside 4 mi W of Corn Springs Campground, Corn Springs, Chuckwalla Mts c. 6 mi S of Desert Center Comment
  RSA617161  Sinapis arvensis Scott D. White, Marty Jacobsmeyer 1996-4-20 3963 Riverside Perris area: Just S of Perris Airport, SE of Goetz Rd. / Mapes Rd. intersection, N of San Jacinto River channel 430 Comment
  RSA0043327  Sisymbrium John F. Emmel 1991-5-22 1174 Riverside San Jacinto Mountains; side canyon of South Fork San Jacinto River, 1.3 air miles south of Halfway Spring (ca. 0.5 air mile southeast of Toll Road Canyon). 792 Comment