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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  JEPS47973  Abies concolor W. L. Jepson and H. M. Hall 1901-5-19 1304 Riverside Strawberry Valley Southern California, Mt. San Jacinto, Strawberry Valley Comment
  POM279283  Abronia villosa Lyman Benson 1933-3-31 4155 Riverside US 66 [actually US 60], 10 mi E of Banning. 457 Comment
  UC851656  Abronia villosa Ira L. Wiggins 1937-3-9 8769 Riverside n Indio Comment
  UC851658  Abronia villosa C. L. Hitchcock 1940-4-4 5951 Riverside Pinto Basin Comment
  RSA773658  Abronia villosa var. aurita Duncan S. Bell, Joy England 2010-10-5 1977 Riverside San Bernardino National Forest: Garner Valley, approximately 2.6 air miles southeast of junction of forest service road 6S04 and forest service road 6S13. 1387 Comment
  SEINET946021  Abronia villosa var. aurita Robert L. Rutherford 1944-1 1592 Riverside Palms to Pines Highway. 1463 Comment
  UCR266410  Abronia villosa var. aurita D. E. Bramlet, M. Tucker, T. Huntley 2005-6-14 3878 Riverside San Jacinto Valley, San Jacinto River just west of Bridge St. 438 Comment
  IRVC28839  Abronia villosa var. villosa Mark A. Elvin 2005-4-25 4220 Riverside Coachella Valley; N of Palm Springs; N of I10; S of Dillan Road; E of Indian Avenue. Northern Sonoran Desert 244 Comment
  RSA726576  Abronia villosa var. villosa Naomi S. Fraga, Sarah J. De Groot, Lisa Rojas, Lel Lubinsky 2005-2-10 1420 Riverside Along Palen Road near Hwy 177. 170 Comment
  SEINET10936441  Acacia greggii David B. Dunn, A. Folsom 1948-6-17 Dunn 3814 Riverside Ravine below quad 4. At camp in Pushawalla; canyon under palms. Comment
  RSA414908  Acacia greggii var. arizonica Anstruther Davidson 1892-05 s.n Riverside Banning. Comment
  RSA93730  Acamptopappus sphaerocephalus var. sphaerocephalus F. W. Peirson 1927-4-11 7154 Riverside 0.5 mile below Whitewater Bridge, head of Coachella Valley. Comment
  CAS-BOT-BC384729  Achyronychia cooperi H. M. Hall 1905-4-1 5773 Riverside Colorado Desert. Indian Well 0 Comment
  CAS-BOT-BC384736  Achyronychia cooperi Ira L. Wiggins 1941-3-24 9565 Riverside 0.3 miles south of Myoma, 4.6 miles north of Indio Comment
  OBI26118  Achyronychia cooperi David J. Keil 1976-12-12 11919 Riverside Along I-10, 37 mi E of Chiriaco Summit Comment
  RSA503144  Achyronychia cooperi Gary D. Wallace, D. H. Wilken 1966-3-26 261 Riverside Indio Hills 70 Comment
  SEINET3156335  Achyronychia cooperi Unknown 1906-5-1 11 -6707 Riverside collected on Colorado desert at Palm Springs Comment
  UCD97895  Achyronychia cooperi Herbert L. Mason 1928-3-10 4177 Riverside Whitewater River. Comment
  UCR279546  Achyronychia cooperi A. C. Sanders, Jim Malusa 2017-3-27 43131 Riverside Sonoran (Colorado) Desert, NW edge of Chocolate Mountains, lower Salt Creek on the illegal OHV road from the Coachella Canal to the trestle, inside Navy Aerial Gunnery Range 44 Comment
  RSA0056197  Achyronychia cooperi Keith E. Hoffmaster 1935-3-31 581 Riverside Palm Springs. Comment
  SBBG3389  Acmispon argophyllus var. argophyllus H. and M. Dearing 1942-3-17 4835 Riverside Dos Palmas Cyn near Palms to Pines Hwy Comment
  RSA0120317  Acmispon maritimus var. brevivexillus Duncan S. Bell, Thomas Stoughton 2016-3-16 8954 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; central/southeastern section of range, approximately 2.5 air miles north of Gucci Spring. 511 Comment
  CAS-BOT-BC226246  Acmispon strigosus A. C. Sanders 2011-4-6 38995 Riverside Peninsular Range; Santa Ana Mtns. Region: Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  RSA0110193  Acmispon strigosus Duncan S. Bell, Amanda Turek 2010-4-9 786 Riverside East side of the Arica Mountains, near the center of the range; approx. 1.75 air mile west of Priest Well. 485 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
  UCR71763  Acrachne racemosa L. F. LaPre, Megan Phillips 1991-9-9 91- 18 B Riverside Sonoran (Colorado) Desert, Palm Springs, Tahquitz debris basin at base of Tahquitz Canyon, off Sunnydunes Drive 183 Comment
Read comments
Sep 10 2011
  CDA14288  Acroptilon repens R. O'Connell 1998-7-8 s.n. Riverside at Santa Ana River Regional Park. 0 Comment
  SBBG18424  Adenophyllum porophylloides M. A. Piehl 1963-6-1 63533 Riverside St Hwy 74, ca. 7.6 mi NE of Pinyon Flat Cmpgrd, S of Palm Desert 731 Comment
  RSA650377  Adenostoma fasciculatum var. fasciculatum C. J. Humphrey 1936-6-7 128 Riverside [No location information provided.] Comment
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Dec 15 2011
  CAS-BOT-BC139868  Adenostoma sparsifolium S. B. Parish; W. F. Parish 1881-7-1 552 Riverside San Jacinto Ms. Comment
  RSA70608  Agave deserti subsp. deserti Frank W. Peirson 1921-4-13 2290 Riverside Deep Canyon; north base of Santa Rosa Mountains, Riverside. 335 Comment
  CAS-BOT-BC46156  Agoseris heterophylla H. M. Hall 1901-6-1 2038 Riverside San Jacinto Mountains, south side 1341 Comment
  POM13137  Agoseris retrorsa P. A. Munz, I. M. Johnston 1922-5-20 5468 Riverside Kenworthy, San Jacinto Mts 1418 Comment
  RSA784536  Agrostemma githago J. D. Olmsted 1959-7-4 736 Riverside Strawberry Creek Drainage Area: Along tributary from south of Lily rock 0.25 mi above junction with Strawberry Creek 0.5 mi above Idyllwild. 1677 Comment
  RSA457396  Agrostis exarata A. R. Roos 1937-8-19 10694 Riverside Idyllwild, San Jacinto Mountains. Comment
  UCR87652  Agrostis exarata Michael A. Patten, S. J. Myers 1993-8-20 s.n. Riverside Sonoran (Colorado) Desert, along Tahquitz Creek and behind the debris basin dam in Palm Springs 183 Comment
  UC36941  Agrostis idahoensis H. M. Hall 1897-8-10 784 Riverside Tauquitz Valley San Jacinto Mountains, Tauquitz Valley 2651 Comment
  RSA179510  Agrostis pallens E. W. Lathrop 1960-6-8 4926 Riverside 14 miles west of Murrieta Comment
  RSA535467  Agrostis pallens Steve Boyd, Timothy S. Ross, Orlando Mistretta 1992-2-2 6652 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Lower half of Tenaja Canyon, especially about Fishermans Camp. Comment
  UCD53276  Agrostis scabra F. M. Reed 1928-7-10 6009 Riverside Strawberry Valley - Camp Emerson, San Jacinto Mts. 1524 Comment
  UCR164300  Agrostis viridis S. J. Myers 2001-7-16 s.n. Riverside San Jacinto Mtns, Bautista Canyon 878 Comment
  CDA4019  Albizia julibrissin A. C. Sanders, T. B. Salvato 2001-5-24 24370 Riverside Perris-Aguanga Basin; Temecula, Long Canyon west of Del Rey Rd., along bottom of canyon W of junction of Av. Pina Colada Comment
  RSA98785  Allenrolfea occidentalis P. A. Munz 1926-1-31 9975 Riverside Dos Palmas Spring Comment
  CLARK-A1528-2791  Allium fimbriatum John C. Roos 1941-5-10 129 Riverside Santa Rosa Mountains Comment
  SEINET8467153 Image available Allium fimbriatum N. C. Cooper 1944-1 1237 Riverside Pinyon Flats, Palms to Pines Hwy, San Jacinto Mts 1219 Comment
  SD134565  Allium fimbriatum var. munzii Craig Reiser 1992-4-14 Riverside Bachelor Mountain, south flank near Skinner Dam. (IPB 2/08) Comment
  RSA70224  Allium haematochiton F. W. Peirson 1919-4-14 1652 Riverside Murray Canyon, Palm Springs Region. 457 Comment
  RSA702415  Allium haematochiton Steve Boyd, Aydee Virgen 2004-4-13 10859 Riverside San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon. Comment
  SD148278  Allium marvinii A. C. Sanders, Kent Beaman 2002-5-10 25053 Riverside Santa Ana Mountains, Santa Rosa Plateau, hills west of the head of DeLuz Creek, 0.4 miles south of Tenaja Road, on west side of Calle Roble, near avenida Matorral; Wildomar 7.5' quad. In an open grassy area among oaks. 671 Comment
  RSA740615  Allium peninsulare Scott D. White, Justin M. Wood 2008-6-19 12255 Riverside USFS Rd (5S08) between Keen Camp Summit and Baldy Mtn. 1524 Comment
  POM158461  Allium peninsulare var. peninsulare Philip A. Munz 1927-5-20 10823 Riverside 10 miles S. of Hemet. Comment
  POM123076  Allium praecox Wilder 1905-04 s.n. Riverside Riverside. Comment
  RSA0112629  Allophyllum A. C. Sanders 2008-7-25 35922 Riverside Peninsular Range; San Jacinto Mtns.: east side of May Valley, NE of Bonita Vista Rd. at foot of hills. Comment
  RSA522081  Allophyllum glutinosum Steve Boyd, T. S. Ross, Kyle A. Boyd 1989-6-24 3747 Riverside Vail Lake area, near summit of 'Little Oak' Mtn. along road. 627 Comment
  UCR108853  Allophyllum glutinosum Heidi A. Haid 1969-3 s.n. Riverside San Jacinto Mtns., Bautista Canyon, above confluence with Horse Creek 915 Comment
  RSA535475  Alnus rhombifolia Steve Boyd, Tim Ross, Orlando Mistretta 1992-2-2 6653 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Lower half of Tenaja Cyn, especially about Fishermans Camp. Comment
  UCR146440  Alopecurus aequalis R. F. Thorne, Et al. 1969-6-24 38145 Riverside San Jacinto Mtns, San Bernardino National Forest. Lake Fulmor 1677 Comment
  UCD169471  Alternanthera philoxeroides J. Zamora; Al Acosta 1999-9-29 s.n. Riverside Riverside, Santa Ana River, under the NW end of the Market St. bridge. 244 Comment
  SEINET998501  Amaranthus blitoides A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-1 32496 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 488 Comment
  CLARK-A1528-1393  Amaranthus californicus John C. Roos 1937-8-19 2020 Riverside San Jacinto Mountains Comment
  RSA715263  Amaranthus powellii A. C. Sanders 1999-9-26 23104 Riverside Garner Valley, along Hwy 74 at Horse Canyon Rd., toward east end of valley 1448 Comment
  UCR18739  Amaranthus powellii John C. Roos 1965-9-28 s.n. Riverside San Jacinto Valley, Hemet Comment
  SEINET2043617 Image available Ambrosia acanthicarpa H. S. Gentry 1954-7-26 14252 Riverside Dripping Springs, along Rt. 79 Comment
  UCR119409  Ambrosia confertiflora Mitch Provance 1998-6-20 752 Riverside Jurupa Mountains, Glen Avon Heights, on the north side of Conning St. (dirt road portion traversing from W to E), which lies between Campbell St. and Lindsay St. 262 Comment
  RSA314630  Ambrosia dumosa R. F. Thorne, F. R. Fosberg, M. H. Sachet, Charles C. Herbst 1983-4-23 55425 Riverside San Bernardino Mountains: Mouth of Whitewater Canyon, east of Whitewater Post Office at south end of ridge. 412 Comment
  UC1539707  Ambrosia dumosa Chas. B. Fiker 1946-4-18 3417 Riverside w side Colorado Desert Comment
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Mar 23 2014
  UC912554  Ambrosia dumosa H. L. Mason 1928-3-10 4217 Riverside Hidden Springs Canyon; Coachella Mts. Comment
  UCSB45944  Ambrosia ilicifolia Roos, John 1958-3-15 Riverside 2 1/2 miles S.E. of Desert Center, in the Chuckwalla Mtns. Comment
  HSC80290  Ambrosia psilostachya Steve Boyd 1985-8-7 1104 Riverside Santa Rosa Plateau Region, NW base of Redona Mesa on Tenaja Rd., 0.8 mi.. east of junction with 8S01 and 8S02 Comment
  UCR261173  Ambrosia pumila A. C. Sanders, Jeff Crain, Nina Kidd 2015-5-19 41727 Riverside Elsinore Trough, north of Elsinore on east side of Baker St., 0.28 km east (74 deg. ) of large water tank above Baker, above a forking dirt road 392 Comment
  CAS-BOT-BC273006  Ambrosia salsola Winfield 1975-4-27 2412 Riverside Snow Creek Rd ~3 mi from Hiway 111 Comment
  UCSB26801  Amorpha fruticosa Wilken, Dieter 1969-6-30 Riverside Road to Santa Rosa Mtn., 4.0 miles east of California State Highway 74, Santa Rosa Mtns. Comment
  HSC79046  Amsinckia intermedia A. C. Sanders 1985-3-1 5389 Riverside Box Springs Canyon, near the intersection of Central Ave. & Hwy. 60, along Gernert Rd., just above the Santa Fe Railroad tracks 427 Comment
  RSA614401  Amsinckia intermedia D. L. Banks 1997-3-16 1535 B Riverside NW Palomar Mountains, Agua Tibia Mountains: North face of Dorland Mountain, the Dorland Mountain Arts Colony along the circular drive that runs around the north side of the compound. 567 Comment
  SD240913  Amsinckia intermedia Dave Silverman, Jeanette Duffels 2010-3-23 7821 Riverside Dunes at SSE tip of Palen Dsry Lake, on km SW of Palen Dunes Drive, 4.2 km N of I-10, 7.4 km ESE of Sidewinder Well. 130 Comment
  SDSU18971  Amsinckia intermedia C. Matt Guilliams 2008-2-21 461 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. 418 Comment
  SDSU18986  Amsinckia intermedia C. Matt Guilliams, Jeannine Ross 2008-3-12 533 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. 428 Comment
  UC174983  Amsinckia intermedia C. F. Baker 1903-4-4 4094 Riverside Elsinore; Pacific Coast Comment
  UCR4103  Amsinckia intermedia Ronald M. Cope 1965-3-5 S.N. Riverside valley 0.5 mi west of where Gage Canal goes underground after having crossed Le Conte Drive Comment
  UCR113213  Amsinckia menziesii A. C. Sanders 1998-1-15 21644 Riverside Lake Skinner area, along old Rawson Rd. just north of Crown Valley, above Diamond Valley at waterline of proposed reservoir 518 Comment
  SBBG120832  Amsinckia menziesii var. menziesii A. C. Sanders 2006-5-11 32260 Riverside Warm Springs Valley, N edge of city of Lake Elsinore, 35 acre parcel S of intersection on Collier Ave and Riverside Dr, NE of Alberhill Crk, NW of Enterprise Way 389 Comment
  SDSU18987  Amsinckia menziesii var. menziesii C. Matt Guilliams, Jeannine Ross 2008-3-12 532 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. 428 Comment
  POM48542  Amsinckia tessellata F. M. Reed 1925-3-17 4947 Riverside Palm Springs. Comment
  UCR41574  Amsinckia tessellata A. C. Sanders, B. Pitzer, D. Charlton, R. & J. Kniffen, J. M. Stewart 1986-3-2 6072 Riverside Sonoran (Colorado) Desert, Bradshaw Rd. on south side of Chuckwalla Mts, 8.2 miles west of Graham Pass Rd. Comment
  JOTR01144  Amsonia tomentosa Cole, James E. 1941-5-14 703 Riverside Joshua Tree National Park. QUEEN VALLEY 1280 Comment
  RSA543905  Anagallis arvensis Steve Boyd, Orlando Mistretta 1991-5-22 6286 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dorland Mtn, W of Kolb Crk. 549 Comment
  UCR174515  Anemopsis californica A. C. Sanders, John F. Green 2006-5-18 32377 Riverside Peninsular Range, French Valley, Briggs Road, stream crossing just south of Los Alamos Road, upstream of Adobe Spring and west of Hwy 79 409 Comment
  UCR193969  Angelica tomentosa A. C. Sanders, Mitch Provance 2008-7-11 35815 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek along trails in vicinity of junction of South Ridge and Coldwater Trails, 1.25 mi. NE of Mountain Center, c. 3/4 mile NE of Keenwild Fire Station 1475 Comment
  SEINET6810127  Anisocoma Unknown 1997-3-16 Riverside 22 air miles SE of Palm Springs; Palm Springs; 22 air miles SE of Comment
  CHSC260  Anthemis cotula S. Westerberg 1934-3-23 Riverside Palm Springs. Comment
  RSA734197  Antirrhinum coulterianum Keith E. Hoffmaster 1937-6-6 761 Riverside Near Valle Vista, Hemet Valley. Comment
  UCR156278  Antirrhinum coulterianum T. B. Salvato, Kent Beaman 2005-5-16 851 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
  RSA0034830  Antirrhinum coulterianum J. C. Roos 1941-5-17 138 Riverside About 4 miles S.W. of March Field. Comment
  JEPS5311  Antirrhinum filipes W. L. Jepson 1928-4-25 12604 Riverside Cottonwood Spring; Colorado Desert, Eagle Mts. 731 Comment
  UCR174169  Antirrhinum nuttallianum A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32577 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 518 Comment
  RSA356719  Antirrhinum nuttallianum subsp. nuttallianum Robert F. Thorne, E. W. Lathrop 1975-5-25 45547 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro. 610 Comment
  SEINET3081292 Image available Apiastrum angustifolium Don Mitchell 1990-4-30 Riverside W side of Sage Road, ca. 1/2 mi. S of intersection with Wilson Valley Road. 701 Comment
  UCR172249  Apiastrum angustifolium John F. Green 2006-5-2 s.n. Riverside Peninsular Ranges, City of Temecula, Immediately N and south of Murrieta Hot Springs Road along San Diego Aqueduct right-of-way 396 Comment
  RSA263646  Apium graveolens E. W. Lathrop 1966-5-8 6511 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest. Trabuco District. 274 Comment
  RSA0125972  Arabis R. F. Thorne, Walter Wisura 1977-9-17 50773 Riverside San Jacinto Mountain: Long Valley to Round Valley along trail to summit. 2591 Comment
  UC667363  Arabis glaucovalvula Annie M. Alexander and Louise Kellogg 1941-5-4 2110 Riverside Joshua Tree National Monument 1249 Comment
  UCR151100  Arabis sparsiflora Scott D. White, Julie Greene 1998-8-1 6966 Riverside Peninsular Ranges/San Jacinto Mtns region, Idyllwild Area, within residential community above/parallel to E bank of Strawberry Creek, between crossing at Circle Drive and Humber Park 1951 Comment
  UCR201670  Arabis sparsiflora Scott D. White, Justin M. Wood 2008-6-19 12276 Riverside San Jacinto Mountains, meadows at Baldy Mountain 1677 Comment
  RSA0128804  Arabis sparsiflora var. californica M. Wall 2008-7-4 483 Riverside Bautista Creek, east of Hemet off Bautista Canyon Rd. ca. 7 miles east of jct. with Fairview Ave. 758 Comment
  UC66491 Image available Aralia californica E. A. Zumbo 1904-1 430 Riverside <Cold Water> Canyon Santa Ana Mts., <Cold Water> Canyon Comment
Read comments
Jun 23 2011
  UCD166225  Arctostaphylos Jack Major 1962-4-16 768 Riverside Along California Hwy 74, below Pinyon Flat toward Palm Desert. (Exact location unknown. Coordinates estimated by label maker.) 1220 Comment
  RSA697541  Arctostaphylos drupacea L. C. Hull 1934-4-23 s.n. Riverside Idyllwild Comment
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Dec 11 2011
  RSA629369  Arctostaphylos glandulosa Jon E. Keeley 1992-7-17 16848 Riverside Hwy 243, 39-40 km north of Idyllwild. 1375 Comment
  RSA629393  Arctostaphylos glandulosa Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19515 Riverside Southwest of Wildomar, off Hacienda Rd., north of Avenida La Cresta, west of Clinton-Keith Rd., southern Santa Ana Mtns. 820 Comment
  RSA629426  Arctostaphylos glandulosa Jon E. Keeley 1992-7-17 16845 Riverside Hwy 243, 39-40 km north of Idyllwild. 1375 Comment
  UCR273496  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42620 Riverside Peninsular Range; Santa Ana Mountains, Santa Rosa Plateau, Calle Viento (thin dirt road) south of Avenida Presa, 0.5 km south of Rancho California Rd. 656 Comment
  UCR273497  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42603 Riverside Peninsular Range; Santa Ana Mountains, South Main Divide Road, near Elsinore Peak, 0.35 km by road south of road junction to Elsinore Peak towers 998 Comment
  CAS-BOT-BC23121  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1931-5-30 6610 Riverside Santiago Peak, Santa ana Mts. Comment
  RSA552735  Arctostaphylos glandulosa subsp. glandulosa Steve Boyd, T. S. Ross, Orlando Mistretta 1992-3-31 6756 Riverside San Mateo Cyn. Wilderness Area. Tenaja Trail from jtn w/ Morgan Tr. S to Pigeon Spring area. 670 Comment
  RSA629362  Arctostaphylos glandulosa subsp. glandulosa Steve Boyd, Tim Ross 1992-5-4 7180 Riverside Southern Santa Ana Mountains; San Mateo Canyon Wilderness Area; Oak Flats area E of Verdugo Potrero 732 Comment
  RSA629427  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-7-17 16843 Riverside Hwy 243, 39-40 km north of Idyllwild. 1375 Comment
  HSC47418  Arctostaphylos glauca Richard Spjut, C. E. Edson 1978-5-5 5018 Riverside W margins of Colorado Desert, along Hwy. 74, W of Palm Desert in the San Jacinto Mtns. 915 Comment
  RSA592674  Arctostaphylos glauca Scott D. White, D. Haselfeld 1996-7-2 4251 Riverside Pinyon Flat area, N of Hwy. 74, ca. 10 road mi. E of junction w/ Hwy. 371. W facing slope of Sugarloaf Mtn and adjacent valley. 1250 Comment
  RSA631763  Arctostaphylos glauca Jon E. Keeley 1992-4-17 15074 Riverside End of Woodchuck Road, Woodchuck Resort. 2 km south of Highway 79. 670 Comment
  RSA631778  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19293 Riverside Highway 79, at Radec. 580 Comment
  RSA631792  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19566 Riverside Highway 79, 4 km west of Aguanga. 660 Comment
  RSA631799  Arctostaphylos glauca Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-10 19570 Riverside Highway 79, 4 km west of Aguanga. 660 Comment
  RSA632653  Arctostaphylos glauca Jon E. Keeley 1992-7-16 16539 Riverside Red Mtn. Rd., 6-6.8 km east of R3. Comment
  UCR94266  Arctostaphylos glauca Scott D. White 1996-4-14 3922 Riverside Perris Basin/San Jacinto Mtns., E of Hemet: San Jacinto River Wash near Valle Vista, north of Hwy 74, c. 1.7 mi west of USFS Cranston Fire Station 549 Comment
  UCSB9378  Arctostaphylos glauca Haller, John 1950-5-20 Riverside Base of San Jacinto Mtns., Hemet-Idyllwild Road, opposite Cranston Ranger Station 609 Comment
  SEINET10449242  Arctostaphylos glauca James S. Miller 1992-5-8 Miller 7467 Riverside San Jacinto Mountains. 11 mi E of W boundary of San Bernadino National Forest on California route 74. 1300 Comment
  RSA633538  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Melanie Baer-Keeley 1993-4-23 22661 Riverside Road to Santa Rosa Mountain. 2000 Comment
  RSA633540  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Melanie Baer-Keeley 1993-4-23 22665 Riverside Road to Santa Rosa Mountain. 2000 Comment
  RSA633722  Arctostaphylos parryana subsp. desertica Jon E. Keeley, Allen Massihi, Robert Goar 1992-8-18 20118 Riverside Truck trail on north-facing slope of Santa Rosa Mountain, ca. 8 km south of Pinyon Pines, Santa Rosa Mountains. 1750 Comment
  CAS-BOT-BC44333  Arctostaphylos pringlei subsp. drupacea H. M. Hall 1901-6-1 2092 Riverside San Jacinto Mts. 1524 Comment
  CAS-BOT-BC44374  Arctostaphylos pringlei subsp. drupacea E. K. Balls; P. A. Munz 1952-8-21 17972 Riverside Road to Santa Rosa Mt. from Vandeventer Flat 1828 Comment
  POM15030  Arctostaphylos pringlei subsp. drupacea Mary F. Spencer 1922-7-2 1980 Riverside Tahquitz trail. Idyllwild. San Jacinto Mt. 1829 Comment
  POM367422  Arctostaphylos pringlei subsp. drupacea A. G. Goodwin 1940-05 s.n. Riverside Idyllwild Comment
  RSA636155  Arctostaphylos rainbowensis Jon E. Keeley 1992-8-2 18810 Riverside East of Hwy 15, off Rainbow Cyn. Rd., 3 km north of San Diego Co. line. 400 Comment
  UCR18879  Arenaria douglasii John C. Roos 1952-5-26 5726 Riverside Reche Canyon 427 Comment
  UC1040944  Argemone munita Gerald B. Ownbey and Findley Ownbey 1954-8-7 2178 b Riverside 13.2 mi se of Idyllwild (Hemet Valley); Hemet Valley 1371 Comment
  RSA0042446  Argythamnia claryana Deidre Conocchioli, Duncan S. Bell 2014-3-4 148 Riverside 1.3 miles down dirt BLM road from paved 58th Avenue; 4WD road south of Lake Cahuila and La Quinta. Just northeast of mouth of Devil Canyon, east side of Santa Rosa Mountains, west edge of Coachella Valley 37 Comment
  CAS-BOT-BC207124  Argythamnia lanceolata Theodore Labouchere 1915-4-1 204 Riverside Borders of the Colorado Desert along the easterly base of San Jacinto Mountain, not far from Palm Springs. Comment
  RSA0042171  Argythamnia lanceolata Duncan S. Bell, Evan Meyer 2014-4-2 6515 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern section of range; approximately 1 air mile northwest of Canyon Spring. 422 Comment
  CAS-BOT-BC500430  Aristida adscensionis A. C. Sanders; Jim Malusa 2015-9-10 41849 Riverside Sonoran (Colorado) Desert: Bradshaw Trail, 0.85 mi SE of its junction with Summit Rd. in Salt Creek Canyon, at wash crossing, at edge of Chocolate Mts Aerial Gunnery Range 480 Comment
  UC126633  Aristida adscensionis H. M. Hall 1905-4-16 5797 Riverside 10 mi w CDoachella; Colorado Desert, Marshall Canyon 30 Comment
  UCR148295  Aristida adscensionis John F. Green, Chet McGaugh 2005-1-19 s.n. Riverside Sonoran (Colorado) Desert, Salton Basin, 1.1 mile transect along Coachella Canal right-of-way, between siphons 24 and 25, NE of Hunters Spring, near S base of Orocopia Mtns. 23 Comment
  UCR20454  Aristida adscensionis John C. Roos 1952-4-9 5508 Riverside Riverside, east face of Mt. Rubidoux 366 Comment
  UCD56348  Aristida californica John Thomas Howell 1928-3-11 3443 Riverside Colorado Desert, 6 miles SE of Garnet Station. 152 Comment
  RSA799085  Aristida purpurea var. fendleriana Sarah J. De Groot, Jessica Chu, Loraine Washburn 2013-3-22 6882 Riverside South side of Joshua Tree National Park, Cottonwood Spring 905 Comment
  HSC8967  Aristida ternipes var. hamulosa C. L. Hitchcock, C. V. Muhlick 1964-3-17 23113 Riverside 10 mi. N of Pala, along road to Elsinore. Comment
  CAS-BOT-BC90101  Artemisia annua O. F. Clarke 1998-9-22 s.n. Riverside Box Springs Mtns. foothills, in the yard at 266 Frost Court, just east of UCR (Riverside EAst 7.5' Q.) 396 Comment
  JOTR34155  Artemisia dracunculus Harding, Mitzi, M. Wheeler 2013-9-21 83 Riverside Joshua Tree National Park. Queen Valley; SE of Barker Dam, near Wall Street Mill parking area 1304 Comment
  RSA520088  Artemisia dracunculus Steve Boyd, David E. Bramlet 1988-10-8 2880 Riverside Cahuilla Mountain, SW of Anza at head of Bautista Canyon. Along crest of the mountain. Comment
  RSA0104642  Artemisia ludoviciana Duncan S. Bell 2014-11-14 7707 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
  POM162686  Artemisia ludoviciana subsp. albula F. M. Reed 1929-11-8 6671 Riverside Snow Canon [Canyon]. San Jacinto Mts. 488 Comment
  RSA692221  Artemisia ludoviciana subsp. incompta Scott D. White 2003-10-9 9824 Riverside Pine Cove. Lily Creek just north of crossing at Hwy 243. 1738 Comment
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May 1 2014
  RSA417354  Artemisia ludoviciana subsp. ludoviciana L. C. Wheeler 1933-12-2 2297 Riverside Tahquitz Canyon, San Jacinto Mts. 700 Comment
  JEPS6280  Asclepias erosa W. L. Jepson May 17 1901-Jun 1 1901 1346 Riverside Palm Canyon (upper end) Mt. San Jacinto Range Comment
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Sep 15 2015
  SEINET10779851  Asclepias subulata George Engelmann 1880-11-11 Engelmann s.n. 1880 Riverside Mountainside near White Water, San Gorgonio Pass 792 Comment
  CSUSB408  Asparagus officinalis Bob Sullivan 1966-3-27 Riverside 400 yards north of Blaine and Canyon Crest, 10 feet from edge of Gage Canal, city of Riverside. 228 Comment
  CAS-BOT-BC99205  Aster S. M. Kaune 1962-12-15 649 Riverside Ca. 1-2 mi. from downtown Coachella, along Hwy 74 - 111, Coachella Valley 6 Comment
  POM146198  Aster hesperius F. M. Reed 1927-11-15 5664 Riverside Water ditch on Central Cove, near Olivewood Cemetery 274 Comment
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May 1 2011
  CLARK-A1528-450  Astragalus aridus Charlotte Stocks 1963-5-19 Riverside Coachella Valley Comment
  UC218095  Astragalus aridus P. A. Munz, D. Keck 1922-4-8 4739 Riverside Mecca , Mecca (Colorado Desert) -30 Comment
  JEPS712  Astragalus didymocarpus var. obispoensis W. L. Jepson and H. M. Hall May 17, 1901-Jun 1, 1901 13745 Riverside Cahuilla Valley Comment
  UCR49257  Astragalus didymocarpus var. obispoensis Steve Boyd 1986-4-2 1624 Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  CAS-BOT-BC178438  Astragalus douglasii var. parishii Marcus E. Jones 1926-6-20 s.n. Riverside Near Idyllwild. Comment
  POM307272  Astragalus douglasii var. parishii Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2147 Riverside Santa Rosa Mountains. Comment
  RSA0031393  Astragalus lentiginosus var. coachellae David Fraker, Aaron Sedgwick 2012-5-8 94 Riverside South of Hwy 111 along dunes at the base of the San Jacinto Mtns. 334 Comment
  UC862737  Astragalus lentiginosus var. coachellae Ivan Johnston Apr 4 1917-Apr 6 1917 Riverside Whitewater Colorado Desert, Whitewater (Colorado Desert, in sand around station) Comment
  PASA1850  Astragalus lentiginosus var. coulteri R. Peirce 1966-4-21 Riverside Windy Point, 2 mi. S. of White Water P.O. Comment
  UCR232513  Astragalus nuttallianus var. cedrosensis Dave Silverman, Mark Bibbo 2010-3-31 7900 Riverside Sonoran (Colorado) Desert, Palo Verde Mesa, E of southern McCoy Mtns, 1.5 km W of Black Creek Rd, 5.4 km N of I-10, and 6.8 km ENE of McCoy Peak 175 Comment
  RSA594778  Astragalus pachypus var. jaegeri D. L. Banks, Dylan Hannon 1996-5-3 0972 Riverside Agua Tibia Mountains; Foothills S of Hwy. 79, E of the Dripping Spring Campground, approximately 150 m SE of the Helipad at the upper camp sites. 524 Comment
  CAS-BOT-BC194126  Astragalus pomonensis Carl B. Wolf 1935-4-7 6298 Riverside Gavilan Hills Region, 1 mi. W of Val Verde 487 Comment
  CAS-BOT-BC194139  Astragalus pomonensis H. A. Zuill 1966-6-29 265 Riverside Cole Canyon, 2 miles SW Murrieta Comment
  RSA12908  Astragalus pomonensis C. B. Wolf 1935-4-7 6298 Riverside 1 mile W of Val Verde in the Gavilan region. 488 Comment
  RSA612326  Astragalus pomonensis C. Epling, Joseph A. Ewan 1933-06 s.n Riverside 5 miles above Corona. Comment
  UC1921999  Astragalus pomonensis Scott D. White, Angelia Carey 2004-4-16 10161 Riverside San Jacinto Mountain Foothills: Indian Creek and adjacent slopes. Comment
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Apr 22 2018
  UCR281790  Astragalus pomonensis Mitch Provance, Matt K. Beyers, Jeremiah George, John Hazlett 2017-4-19 417- 99 Riverside Menifee Valley, Menifee, W side of Murrieta Rd., between Melido St. and Wickerd Rd. 482 Comment
  POM294613  Astragalus tricarinatus Lyman Benson 1945-4-6 11655 Riverside Whitewater Canyon, 3 miles above Whitewater. 427 Comment
  CAS-BOT-BC66099  Athyrium filix-femina var. cyclosorum G. B. Grant 1901-8-1 4514 Riverside Strawberry Val. S. Jacinto Mts. Comment
  CLARK-A1528-2295  Athysanus pusillus John C. Roos 1947-3-21 3363 Riverside Reche Canyon Comment
  RSA0086760  Athysanus pusillus R. G. Swinney 1967-5-26 11729 Riverside Snow Creek. 335 Comment
  RSA452448  Atriplex Anstruther Davidson 1925-1 s.n. Riverside Colorado Desert Comment
  UCR121192  Atriplex argentea D. E. Bramlet 1989-7-6 1936 Riverside Auld Creek west of the Lake Skinner Dam; c. 1,000 ft. NE of the intersection of Washington St. and Auld Road. 423 Comment
  RSA736730  Atriplex canescens Scott D. White, Angelia Carey, Linda Archer 2004-8-5 10685 Riverside Soboba Indian Reservation- Indian Creek and adjacent uplands, from confluence w/ San Jacinto River to +/- 2 miles upstream. 534 Comment
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Sep 26 2009
  SEINET3930583  Atriplex canescens Grant D. Brown 1950-12-2 594 Riverside Santa Ana River NW of Arlington.; 0 198 Comment
  UCR142799  Atriplex canescens I. M. Johnston 1917-4-4 1033 Riverside Sonoran (Colorado) Desert, near Palm Springs 183 Comment
  UC850848  Atriplex canescens subsp. canescens Carl B. Wolf 1932-10-13 4324 Riverside ne side Salton Sea (Durmid, ne side of S.P.R.R. Tracks, Colorado Desert); Colorado Desert, ne side Salton Sea, Durmid -60 Comment
  CAS-BOT-BC227862  Atriplex canescens var. macilenta Dave Silverman 2010-3-24 7827 Riverside South Palen Lake, Chuuckwalla Valley, 4.5 km SE of Sidewinder Well, 2.3 km SW of Palen Dunes Dr., and 4.2 km N of Interstate 10 128 Comment
  UC1584123  Atriplex coronata var. notatior D. Bramlet 1990-7-20 2054 Riverside in the Old San Jacinto River channel about 880 m ne of Davis Rd and some 400 sw first waterfowl pond (San Jacinto Wildlife Area, Old San Jacinto River Channel); Lakeview Quad., San Jacinto Wildlife Area, old San Jacinto R 476 Comment
  UCR191544  Atriplex coronata var. notatior A. C. Sanders 2008-4-15 34891 Riverside Peninsular Range, NE edge of city of Elsinore, off Nichols Rd. along Baker St., near Durant Siding 383 Comment
  UCR63943  Atriplex coronata var. notatior D. E. Bramlet, A. Parikh 1990-6-14 2036 Riverside San Jacinto Valley, 6.5 km west of Hemet, c. 600 m SW of the intersection of Warren Ave and Florida Street, and 0-50 m east of the MWD 'San Diego Canal 457 Comment
  RSA0102804  Atriplex elegans var. fasciculata Duncan S. Bell, Kay Evelina Lewis-Jones, Isaac Marck, Evan Meyer 2015-4-23 8103 Riverside Rice Valley, to the east of the Arica Mountains, about 6 air miles south southeast of the ghost town of Rice. 211 Comment
  CAS-BOT-BC170255  Atriplex hymenelytra W. F. Anderson 1925-12-1 s.n. Riverside Indio Comment
  RSA0042164  Atriplex hymenelytra Duncan S. Bell, Evan Meyer 2014-4-2 6522 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern section of range; approximately 1 air mile northwest of Canyon Spring. 422 Comment
  RSA478264  Atriplex hymenelytra E. C. Jaeger 1929-3-29 753 Riverside Painted canyon, near Mecca. 91 Comment
  POM278761  Atriplex lentiformis Grant D. Brown 1949-12-15 480 Riverside Mecca Comment
  UCR163798  Atriplex lentiformis John F. Green 2005-10-26 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley; ENE of Salton Sea State Park, along Coachella Canal 24 Comment
  CAS-BOT-BC176530  Atriplex polycarpa D. B. Dunn; H. Brown 1947-1-12 2835 Riverside Pushawalla Canyon, Indio Hills Comment
  POM10086  Atriplex semibaccata Anonymous 1907-09 871 Riverside Corona. Comment
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Apr 11 2009
  UCR115132  Atriplex suberecta Mitch Provance 2000-10-28 2274 Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 290 Comment
  UCR97902  Avena barbata A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19841 Riverside Lake Skinner area, lower Rawson Canyon, along road NE of Skinner Lake 457 Comment
  RSA426791  Ayenia compacta Anstruther Davidson 1893-4-10 s.n. Riverside Palm Springs. Comment
  POM13868  Azolla filiculoides Philip A. Munz 1922-4-29 5099 Riverside Dripping Springs, near Temecula Creek 518 Comment
  SD255081  Baccharis brachyphylla Duncan S. Bell, Sarah DeGroot and Amy Rouillard 2015-10-19 8717 Riverside Transverse Ranges: San Bernardino Mountains region: Whitewater Canyon, along the Pacific Creset Trail, approximately 0.75 air mile northeast of Red Dome. 885 Comment
  RSA220386  Baccharis emoryi C. W. Tilforth, John Dourley 1970-10-16 315 Riverside 1 mile W of Lake Mathews along Cajlco road Comment
  UCR106918  Baccharis pilularis D. L. Banks, L. Raz 1996-11-5 1148 Riverside Agua Tibia Mountains, Pechanga Indian Reservation, south of San Gabriel Church; along a newly established firebreak along a NW-SE running ridgeline, near the water tank in section 34 421 Comment
  CAS-BOT-BC106741  Baccharis salicifolia S. B. Parish 1912-6-27 8127 Riverside Alkaline flats at Mecca Comment
  RSA552717  Baccharis salicifolia Steve Boyd, Timothy S. Ross, Orlando Mistretta 1992-2-26 6686 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon from Fisherman's Camp downstream to confluence with Bluewater Canyon. 305 Comment
  UCR34877  Baccharis salicifolia L. B. Ziegler 1967-9-18 248 Riverside San Jacinto Mtns, Bautista Canyon 673 Comment
  SEINET10616773  Baccharis salicifolia David B. Dunn, Dhogo; Schroeder, (UMO); Bruskin; A. Folsom 1948-3-13 Dunn 3724 Riverside Indio Hills, Colorado Desert. Near Pushawalla. Comment
  CAS-BOT-BC483032  Baccharis salicifolia subsp. salicifolia Sarah J. De Groot; Cheryl Sevilla; Rico Ramirez 2014-8-20 7239 Riverside North Fork Mission Creek, above preserve. SE San Bernardino Mtns, San Gorgonio Wilderness Area 770 Comment
  CAS-BOT-BC106674  Baccharis salicina A. C. Sanders; P. MacKay; C. L. Sanders; G. Helmkamp; J. Stewart 1994-12-4 15882 Riverside Colorado Desert, Salton Sink: Dos Palmas oasis area, San Andres palm grove, 1.75 km (1.1 mi) WSW of Rancho Dos Palmas, -22 Comment
  SDSU13512  Baccharis salicina W. Miller 1972-8-9 Riverside Just west of beaver dam and east of aqueduct. Comment
  RSA89881  Baccharis sarothroides J. C. Roos 1950-10-28 5021 Riverside Box Springs. 473 Comment
  POM183880  Baccharis sergiloides Philip A. Munz 1932-10-16 12843 Riverside Road from Deep Canyon to Vanderventer Flat, Santa Rosa Mts. 1067 Comment
  UC1303134  Baccharis sergiloides Carl B. Wolf 1932-10-12 4298 Riverside Pinyon Wells Little San Bernardino Mts., Conchilla Mts. 1219 Comment
  UCR121819  Baccharis sergiloides A. C. Sanders, Mark Elvin, Jane Rodgers 2001-8-17 24601 Riverside Mojave Desert, Little San Bernardino Mtns, Stubbe Spring, Joshua Tree National Park, 4.35 mi. (airline) SW from park road in Lost Horse Valley 1372 Comment
  UCR20318  Baccharis sergiloides John C. Roos 1949-9-17 4660 Riverside San Bernardino Mtns / Sonoran (Colorado) Desert, Palm oasis in a side canyon on the E side of Whitewater Wash 612 Comment
  POM6936  Bahiopsis parishii Philip A. Munz, L. T. Street 1919-5-7 2722 Riverside Tahquitz Canon, Palm Springs Comment
  CAS-BOT-BC99948  Baileya pauciradiata Mrs. W. J. Anderson 1925-3-27 s.n. Riverside Indio Comment
  CAS-BOT-BC99956  Baileya pauciradiata Marcus E. Jones 1903-5-8 s.n. Riverside Indio -7 Comment
  POM13024  Baileya pauciradiata Philip A. Munz, D. D. Keck 1922-4-14 4965 Riverside Indian Wells 107 Comment
  POM30716  Baileya pauciradiata Marcus E. Jones 1903-5-8 s.n. Riverside Indio. -7 Comment
  UC135117  Baileya pauciradiata S. B. Parish 1896-4-1 4125 Riverside Palm Springs Colorado Desert Comment
  UC53925  Baileya pauciradiata F. Gilman 1902-1 Riverside Palm Springs Comment
  JOTR01236  Baileya pauciradiata Cole, James E. 1941-4-13 571 Riverside Joshua Tree National Park. SOUTH OF DALE DRY LAKE Comment
  SD5792  Baileya pleniradiata Frances Keys 1929-6-28 Riverside Palm Springs; Desert Queen Ranch. Comment
  JOTR01237  Baileya pleniradiata Cole, James E. 1941-6-17 921 Riverside Joshua Tree National Park. LIVE OAK TANK 1219 Comment
  RSA450419  Bebbia juncea J. C. Roos 1965-6-19 s.n. Riverside Skyline Drive, S of Corona Comment
  RSA502193  Bebbia juncea Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-11 3701 Riverside Vail Lake area, sandy wash draining into Wilson Creek at E end of lake. Comment
  RSA696874  Bebbia juncea J. Russell Bruff 1928-4-1 77 Riverside Whitewater Comment
  RSA795919  Bebbia juncea Duncan S. Bell 2009-4-19 291 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  CAS-BOT-BC100125  Bebbia juncea var. aspera Geo. B. Grant 1906-4-20 6730 Riverside Palm Springs Comment
  JEPS19302  Bebbia juncea var. aspera W. L. Jepson May 17 1901-Jun 1 1901 1384 Riverside Palm Canon and return to Van Deventer's 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
  UCSB21057  Bernardia myricifolia McMinn, Howard 1935-6-27 Riverside Grade to the valley, Palms to Pines Highway Comment
  UCR165606  Bloomeria crocea T. B. Salvato, John F. Green 2004-5-27 706 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
  UCR16045  Bloomeria crocea var. crocea Steve Kulju 1974-5-16 s.n. Riverside Santa Ana Mtns/Santa Rosa Plateau, Tenja Rd. near Murrieta, 9.5 mi SW of Washington Ave 549 Comment
  RSA0035480  Boechera A. C. Sanders 2013-7-6 40857 Riverside SE of Idyllwild on South Ridge along FS Rd. 5S11, at junction with small side road 1905 Comment
  JEPS53176  Boechera californica Carl V. Meyer Jun 1927 169 Riverside Idyllwild-Keen Camp Road San Jacinto Mts. 1524 Comment
  POM229453  Boechera californica P. A. Munz 1937-5-30 15085 Riverside Northwest slope of Santa Rosa Mountain. 2134 Comment
  SD51944  Boechera californica Reid Moran 1962-7-7 9872 Riverside By Strawberry Creek, 2.0 miles southwest sof Idyllwild, San Jacinto Mountains. 1550 Comment
  JOTR33743  Boechera pulchra La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell 2011-3-31 2742 Riverside Joshua Tree National Park. Northern edge of Hexie Mountains; Granitic bedrock slopes and outcrops (Stop 4) Comment
  UCR35198  Boerhavia coccinea L. B. Ziegler 1967-8-30 218 Riverside San Jacinto Valley, Vacant lots in city of San Jacinto 473 Comment
  JOTR30697  Boerhavia wrightii Andre, Jim, Tasha La Doux 2008-9-13 10259 Riverside Joshua Tree National Park. Palen Valley along the W. side of Hwy 177, just W. of Palen Valley Sand Dunes area, E. side of Coxcomb Mountains, E. boundary of Joshua Tree National Park 204 Comment
  UC2026380  Boerhavia wrightii Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10051 C Riverside COLORADO DESERT, CHUCKWALLA MOUNTAINS: Northwest base of the range, south of Eagle Mine Road exit on Interstate 10. Comment
  RSA179488  Bothriochloa barbinodis E. W. Lathrop 1979-4-17 4479 Riverside 14 miles west of Murrieta, Redonda Mesa. Comment
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Apr 27 2011
  UCSB9820  Bothriochloa barbinodis Beach, Kay 1942-10-23 Riverside Dos Palmas Spring; 0.75 mi E of road at point 20 mi from Kenworthy Forest Stn. and 12 mi N of Jct of Indio and Palmas highways; side road; San Bernardino Ntl Forest Comment
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Mar 2 2014
  SEINET3920201  Bouteloua aristidoides Noel H. Holmgren, Patricia K. Holmgren; Ruth E. Kern 1973-3-23 6491 Riverside Palen Valley, 15 miles northeast of Desert Center.; 0 183 Comment
  UCSB51403  Bouteloua aristidoides John C. Roos 1946-9-14 3026 Riverside collected in in the Inyon Flats, in the Santa Rosa Mountains Pinyon Flats 1219 Comment
  JOTR35383  Bouteloua barbata var. barbata Harding, Mitzi, J. Hoines, E. Kramer 2012-2-2 171 Riverside Joshua Tree National Park. southeast Coxcomb Mountains; SE facing slopes and steep drainages 164 Comment
  RSA0087454  Bouteloua barbata var. barbata Sarah J. De Groot, Amy Rouillard 2015-9-15 7567 Riverside Ford Dry Lake, Chuckwalla Valley, north of I-10. 107 Comment
  UC406749  Bouteloua barbata var. barbata Marcus E. Jones, A. M. 1929-9-16 24716 Riverside near Desert Center; Hayfields Comment
  SEINET3240177  Bowlesia incana Steve Boyd 1986-1 1597 Riverside Gavilan Plateau, Gavilan Hills: Harford Springs County Park. 610 Comment
  UCR150039  Bowlesia incana Scott D. White, Tasha LaDoux 2000-4-20 7673 Riverside Perris-Aguanga Basin, South of Hemet: 'Gibbel Flat' in the Santa Rosa Hills 671 Comment
  RSA586771  Boykinia rotundifolia D. L. Banks, Steve Boyd 1995-5-17 0468 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
  JOTR16656  Brandegea bigelovii Vanderspek & Youse 1964-4-19 s.n. Riverside Joshua Tree National Park. WILSON CANYON Comment
  JOTR16657  Brandegea bigelovii Wilburn and Walters 1967-3-7 s.n. Riverside Joshua Tree National Park. LOWER WILSON CANYON Comment
  SBBG69429  Brandegea bigelovii L. Rowntree 1930-5-7 Riverside Hidden Springs Comment
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Aug 28 2016
  SEINET8710942 Image available Brassica fruticulosa A. C. Sanders 2008-1 34418 Riverside Peninsular Range: Box Springs Mtns.; Two Trees Canyon along foot trail along north side of riparian thicket, beyond the end of the old road 428 Comment
  UCR275352  Brassica rapa T. B. Salvato, Melissa Clemons 2005-6-9 1495 Riverside Peninsular Range, Gavilan Hills, E/W trending side canyon feeding into Walker Canyon, c. 0.3 mile northeast of Hwy 15 457 Comment
  UCR79237  Brassica rapa subsp. sylvestris Steve Boyd, Orlando Mistretta 1992-4-23 7062 Riverside Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area, along San Mateo Creek from Riverside County line, following San Mateo Trail upstream to the confluence with Bluewater Canyon 305 Comment
  CAS-BOT-BC36843  Brassica tournefortii J. Beley 1974-2-22 0462 Riverside 2 miles east of Cabazon. Comment
  SEINET4565892  Brassica tournefortii Duncan S. Bell 2010-4-1 669 Riverside Sonoran (Colorado) Desert; Arica Mountains; west side of Rice Valley, c. 1.2 air miles east of AT & SF railway line, c. 4.2 air miles east of Priest Well and c. 4.3 air mi. SE of the ghost town of Rice 208 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
  CAS-BOT-BC106245  Brickellia californica Lathrop; Thorne 1967-9-26 6617 Riverside Tenaja Guard Station, 10 mi. NW of Murrieta Comment
  UCR150643  Brickellia desertorum Bern Schwenn 1994-10-30 s.n. Riverside Joshua Tree National Monument, Little San Bernardino Mountains, Long Canyon; main canyon above narrows 976 Comment
  UCR213833  Brodiaea terrestris subsp. kernensis Scott D. White, Justin M. Wood 2009-5-21 12848 Riverside San Jacinto Mountains, McMullen Flat area, 0.35 north on Valley Hi Drive, from intersection with Twin Pines Road 1201 Comment
  RSA561876  Bromus anomalus Steve Boyd, Timothy S. Ross 1992-6-10 7633 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon about 'Potrero Escondido',, an isolated area of low relief topping the ridge system due west of the junction on Tenaja Road (7S01) and Los Alamos Road (7S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek 671 Comment
  UC162210  Bromus arizonicus H. M. Hall May, 1905 5980 Riverside Colorado Desert Comment
  SEINET3921841  Bromus carinatus Elizabeth Neese 1979-4-11 7104 Riverside Road jct halfway between Blythe & Rice.; 0 Comment
  CAS-BOT-BC149308  Bromus carinatus var. carinatus Ralph Hoffman 1929-9-11 s.n. Riverside Mount San Jacinto. 1645 Comment
  RSA652945  Bromus diandrus Mitch Provance 2000-1-8 1803 Riverside Jurupa Mountains: Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411. 290 Comment
  UCR156299  Bromus diandrus T. B. Salvato, Kent Beaman 2005-5-16 832 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
  RSA363849  Bromus diandrus N. C. Cooper 1944-4-22 1116 Riverside Banning. 701 Comment
  RSA513431  Bromus diandrus J. D. Olmsted 1962-5-10 3660 Riverside West of crest between Sandia and DeLuz Creeks along Murrieta to DeLuz Road. 206 Comment
  RSA741211  Bromus hordeaceus Scott D. White, Justin M. Wood 2008-5-15 11988 Riverside Johnson Meadow. 1415 Comment
  UCR91486  Bromus hordeaceus Scott D. White, M. Jacobsmeyer 1996-4-20 3970 Riverside Perris Basin, near Perris Airport; c. 100 m south of Case Road and 100 m west of the San Jacinto River Channel 433 Comment
  RSA0000409  Bromus orcuttianus var. hallii H. M. Hall 1901-06 2301 Riverside San Jacinto Mountains. West side. 1738 Comment
  UC1583851  Bromus richardsonii Michael Curto and Linda Allen 1990-8-23 693 Riverside 2 km e of Toro Campground (Santa Rosa Mountains, Toro Peak, Santa Rosa Mt. Rd (SBNF 7S02); along the n slope of Santa Rosa/Toro Peaks); Santa Rosa Mountains, Toro Peak, Santa Rosa Mt. Rd 2415 Comment
  CAS-BOT-BC161813  Bromus rubens Miles Fellows 1982-3-16 s.n. Riverside At the base of the north facing hillside 30 yards west of the entrance to the University of California RIverside Botanic Garden. Comment
  UCR234328  Bromus rubens A. C. Sanders, John F. Green 2012-4-6 40008 Riverside Peninsular Range; Santa Ana Mtns. Area, Temescal Canyon, major culvert/wash crossing along Temescal Cyn. Rd., near Campbell Ranch Rd. and I-15 Fwy, c. 10 miles south of Corona 323 Comment
  UCR92322  Bromus rubens Scott D. White 1995-3-30 2629 Riverside San Jacinto Valley, Just west of Box Springs Blvd, east of Sycamore Canyon Park 457 Comment
  POM46957  Bromus rubens Mary F. Spencer 1918-1 828 Riverside Palm Springs. 137 Comment
  JOTR30313  Bromus trinii La Doux, Tasha, Bill Truesdell, Erin Babich 2008-3-10 1746 Riverside Joshua Tree National Park. Stop # 3 Northwest end of Eagle Mountains, near road leading to Cottonwood Canyon. 898 Comment
  UCR211702  Caesalpinia gilliesii Fred M. Roberts, Kerry M. Byrne 2006-6-27 6346 Riverside Perris Basin, Hemet, just south of Florida Ave. and east of California Ave, 2.2 km northwest of the west end of Hemet Ryan Airport runway 463 Comment
  IRVC28832  Caesalpinia virgata Mark A. Elvin 2005-4-26 4227 Riverside Coachella Valley; W of Coachellay Valley Preserve. Northern Sonoran Desert 84 Comment
  UC864226  Caesalpinia virgata Lewis S. Rose 1938-12-24 38340 Riverside 10 mi. n. Indio (Los Angeles Aquaduct Rd.) 121 Comment
  UCR18388  Calandrinia ambigua Holly Hartman 1979-4-25 s.n. Riverside Western Colorado Desert, Painted Canyon in the Mecca Hills Comment
  RSA180493  Calandrinia ciliata E. W. Lathrop 1960-5-27 5210 Riverside 6 miles west of Murrieta. Comment
  RSA198958  Callitriche marginata R. F. Thorne, P. A. Munz, E. W. Lathrop 1968-5-8 37562 Riverside Santa Rosa Plateau: on Mesa de Colorado, Rancho California. 671 Comment
  RSA784189  Calochortus nuttallii J. D. Olmsted 1959-7-1 700 Riverside Willow-Tahquitz Creek. Wellmans Cienega between saddle and San Jacinto Peak along trail 5 mi NE of Idyllwild. 2805 Comment
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Oct 18 2012
  UCR139248  Calochortus palmeri var. munzii A. C. Sanders, Kate Kramer 2003-6-11 26884 Riverside San Jacinto Mtns., Garner Valley, southwest side of the valley, foot of Thomas Mtn., west of Hwy 74 on south side of Ramona Truck Trail 1402 Comment
  UCR117699  Calochortus plummerae Mitch Provance 1998-6-11 652 Riverside Jurupa Mountains, NW Jurupa Mtns; south of the E extreme of Philadelphia St. 290 Comment
  UCR16610  Calochortus splendens Joe Buriel 1966-4-6 s.n. Riverside 0.5 mi. west of Lake Mathews on Cajalco Road 457 Comment
  RSA525344  Calycadenia tenella Steve Boyd 1990-4-28 4442 A Riverside Vail Lake area, summit of 'Big' Oak Mtn, N of lake 762 Comment
  JOTR34060  Calycoseris parryi La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2958 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; loamy-gravel, steep, southeast facing slopes above Lost Horse Mine Trail Comment
  RSA81019  Calycoseris parryi G. R. Campbell 1952-4-6 18408 Riverside Joshua Tree National Monument. 1.5 miles toward Cottonwood Springs, off road to 29 Palms 975 Comment
  CAS-BOT-BC282912  Calycoseris wrightii K. Larson 1977-5-12 60062 B Riverside Ford Dry Lake ca 25 miles W Blythe Comment
  CAS-BOT-BC282921  Calycoseris wrightii Carl B. Wolf 1932-4-29 3107 Riverside E Colorado Desert. Blythe - Rice Rd. 9 miles S of Browns Well 243 Comment
  UCR74397  Calycoseris wrightii Theo Glenn 1991-5-1 91- 51 Riverside Sonoran (Colorado) Desert, McCoy Mts, NW of Blythe 240 Comment
  CLARK-A1528-770  Calyptridium monandrum C. M. Flanagan 1973-5-20 OO 529 Riverside Morongo Indian Reservation 1158 Comment
  UCR20731  Calyptridium monandrum A. C. Sanders, Steve Boyd 1980-5-2 1413 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  UCR60246  Calyptridium monandrum R. F. Thorne, M. Z. Thorne 1973-3-30 42685 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
  CLARK-A1528-7874  Calystegia longipes John C. Roos 1952-6-8 5747 Riverside Reche Canyon 579 Comment
  CAS-BOT-BC168227  Camissonia bistorta Abby Sirulnik 2000-4-13 06 Riverside Peninsular Ranges: Southwestern Riverside County Multispecies Reserve, ca. 3 mi NE of Skinner Reservoir 610 Comment
  RSA147863  Camissonia bistorta J. B. Feudge 1927-6-5 1719 Riverside Winchester. 412 Comment
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Mar 20 2011
  RSA559960  Camissonia bistorta Steve Boyd, Orlando Mistretta 1992-4-23 7071 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
  RSA586915  Camissonia bistorta D. L. Banks, Steve D. Boyd 1995-5-3 251 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 512 Comment
  JOTR31893  Camissonia brevipes subsp. brevipes La Doux, Tasha, M. Harding, K. Kain, E. Babich 2011-3-22 2143 Riverside Joshua Tree National Park. West Cottonwood Mountains; east edge of Pinkham Wash east of Pinkham Canyon Road; loose, cobbley, south facing slope above large drainage Comment
  RSA444570  Camissonia brevipes subsp. brevipes Walter Wisura 1988-3-23 4214 Riverside Highway 62 immediately E of Robinson Road, West of Twentynine Palms. Comment
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Sep 7 2013
  RSA75369  Camissonia brevipes subsp. brevipes F. W. Peirson 1928-7-10 7706 Riverside Colorado Desert. Foot of rock wall of canyon at Hidden Spring, northeast of Mecca. Comment
  RSA98793  Camissonia brevipes subsp. brevipes P. A. Munz 1926-1-31 9949 Riverside Dos Palmos [Palmas] Spring. Comment
  RSA782531  Camissonia californica A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38385 Riverside 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. 465 Comment
  UCR208011  Camissonia californica E. W. Lathrop 1975-8-15 7468 Riverside Peninsular Ranges: Santa Ana Mts. region, 5 miles W of Murrieta, Los Gatos Road, on south slope of Mesa de Colorado. Comment
  POM50372  Camissonia campestris subsp. campestris W. W. Eggleston 1924-3-8 19520 Riverside Hemet. 480 Comment
  RSA454757  Camissonia campestris subsp. campestris Ora M. Clark 1929-2-22 1519 Riverside south Cabazon Comment
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Mar 13 2011
  POM177939  Camissonia cardiophylla Joseph A. Ewan 1931-4-4 4154 Riverside Summit east of Shaver's Well. 518 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
  RSA135288  Camissonia claviformis subsp. aurantiaca Peter H. Raven 1958-1-24 11470 Riverside Desert Canyon bottom on road to Cottonwood Springs 4.5 miles north of State Highway 195. Comment
  RSA449209  Camissonia claviformis subsp. aurantiaca Christopher Davidson, Alan Romspert, H. Surprenant 1979-4-29 7817 Riverside West of Indio, 3 miles E of Date Palm Drive. 15 Comment
  SEINET3093303 Image available Camissonia claviformis subsp. claviformis George K. Helmkamp, E. A. Helmkamp 1998-2-5 2655 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  UCR142853  Camissonia claviformis subsp. claviformis I. M. Johnston 1917-4-4 1076 Riverside Sonoran (Colorado) Desert, near Palm Springs 183 Comment
  RSA633323  Camissonia confusa Robert F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38083 Riverside San Bernardino National Forest, San Jacinto Mountains: Above James Reserve in Hall Canyon. 1677 Comment
  UCR174106  Camissonia hirtella A. C. Sanders 2006-5-19 32423 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 518 Comment
  UCR121178  Camissonia ignota D. E. Bramlet 1990-4-27 1987 Riverside 1,000 ft. (~0.2 mi.) south of Crown Valley and 200 ft. west of access road 631 Comment
  RSA186157  Camissonia pallida subsp. pallida William Theobald 1960-4-10 62 Riverside Pinyon Crest Road 2.5 miles from Palms-to-Pines Highway. Comment
  UCR167438  Camissonia refracta 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
  RSA192044  Camissonia strigulosa E. W. Lathrop 1960-5-6 4797 Riverside 10 miles west of Murrieta. Comment
  UC56459  Camissonia strigulosa H. M. Hall Apr. 1903 3842 Riverside Moreno Valley Comment
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Mar 20 2011
  UCR121230  Camissonia strigulosa Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2305 Riverside San Jacinto Mtns, Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest 1700 Comment
  SDSU3359  Camissoniopsis hirtella H. L. Wedberg 1957-5-11 Riverside Idyllwild rd., 2 mi. s. Banning. Comment
  UC1007220  Camissoniopsis pallida subsp. hallii Philip A. Munz 1940-3-22 15660 Riverside 2 mi n Banning-Indio boulevard; Whitewater Canyon Comment
  UCD103600  Camissoniopsis pallida subsp. pallida R. L. Smith 1948-3-24 s.n. Riverside Foot of Andreas Canyon. Comment
  UCR188226  Carex Diane Menuz 2006-6-21 177 A Riverside Peninsular Range; Santa Ana Mtns, Santa Rosa Plateau, at intersection of Tenaja Truck Rd. and Ranch Rd. 541 Comment
  UCR92649  Carex barbarae F. M. Reed 1930-3-7 6770 Riverside San Jacinto Mountains, cienega in Indian [Creek] Canyon, NE of San Jacinto. 762 Comment
  RSA697504  Carex lemmonii J. Russell Bruff 1934-7-7 s.n. Riverside Idyllwild Comment
  CAS-BOT-BC118510  Carex praegracilis Earl W. Lathrop 1959-5-17 4553 Riverside 10 mi W of Murrieta Comment
  RSA801941  Carex sartwelliana LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6171 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
  RSA608702  Carex senta L. C. Wheeler 1961-6-20 7893 Riverside West Fork Tahquitz Creek 2377 Comment
  UCD105617  Cassia nemophila A. C. Sanders; K. C. Rose 1999-5-28 22794 Riverside Coachella Valley: between La Quinta and Indio, along Jefferson St. between Ave 54 and I-10. 10 Comment
  RSA502498  Castilleja affinis Steve D. Boyd, Tim S. Ross, L. Arnseth 1989-6-11 3740 Riverside Vail Lake area, S flank of Oak Mountain, N of the lake. 549 Comment
  JEPS60185  Castilleja affinis subsp. affinis L. R. Heckard 1969-4-24 2166 Riverside about 2.5 mi s Sage (along Highway 79) Comment
  SDSU14181  Castilleja affinis subsp. affinis Martin M. Lane, M. G. Simpson 2002-4-20 8 Riverside At Santa Margrita River Ecological Reserve about 1/8 mile Nothreast of Northside Field Station on the loop trail, approximately 100 yards from the river over look. 341 Comment
  SDSU14239  Castilleja affinis subsp. affinis Ingrid Poulin, Dr. M. G. Simpson & Biology 531, class of Spring 2002 2002-4-20 21 Riverside Santa Margarita Ecological Reserve - Northside; Loop Trail to Observation Point; east of Via Tornado. 335 Comment
  UCR146438  Castilleja applegatei subsp. martini R. F. Thorne, Et al. 1969-6-24 38086 Riverside San Jacinto Mtns., San Bernardino National Forest, above James Reserve in Hall Canyon 1677 Comment
  RSA448700  Castilleja applegatei subsp. martinii Christopher Davidson 1975-6-16 2816 Riverside 3.8 mi. N of Alandale Station on road R1 from Idyllwild to Banning. 1700 Comment
  RSA773180  Castilleja exserta Duncan S. Bell, Joy D. England 2010-5-27 1130 Riverside San Bernardino National Forest: Garner Valley, approximately 1 air mile southeast of junction of forest service road 6S04 and forest service road 6S13. 1354 Comment
  UC1012295  Castilleja exserta F. W. Pennell and W. S. Howell Apr 28 1940-Apr 29 1940 25291 Riverside Santa Rosa Indian Reservation; Route 74 1402 Comment
  RSA526171  Castilleja foliolosa Steve Boyd, Tim S. Ross 1990-5-11 4674 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  UCR138158  Castilleja foliolosa D. L. Banks 1997-2-23 1340 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation. The area along Magee Truck Trail between the headwaters of Pala Creek at the southern extremity of the Reservation to the the Riverside/San Diego Co. line 482 Comment
  SD186121  Catalpa bignonioides A. C. Sanders, Guy Bruyea 2003-6-12 26892 Riverside Winchester, southeast side of town between Simpson Ave. and Olive Ave., east of Highway 79/Winchester Rd. 449 Comment
  UCR49244  Caucalis microcarpa Steve Boyd 1986-4-22 1736 Riverside Temescal Canyon, Walker Canyon area, where Temescal Creek (=Alberhill Creek) flows between Alberhill Mountain and Gavilan Hills 427 Comment
  UC1492739  Caulanthus hallii Freed W. Hoffman 1950-4-26 3351 Riverside road to summit El Toro Mt. 2.6 mi from intersection with Palms-to-Pines Highway 74; road to summit El Toro Mt. Comment
  UC597600  Caulanthus hallii Philip A. Munz 1937-5-30 15093 Riverside nw slope Santa Rosa Mts.; nw slope Santa Rosa Mts. 1828 Comment
  UCR121199  Caulanthus heterophyllus D. E. Bramlet 1991-5-10 2147 Riverside Perris-Aguanga basin region, North Domenigoni Hills, saddle between large peak in NW/4 of Sec. 31 & the 2071 ft. ridgeline to the west 567 Comment
  UCR65282  Caulanthus heterophyllus Steve Boyd, L. Arnseth, T. S. Ross 1990-3-29 3846 Riverside Peninsular Range, Vail Lake area, cinder cone ridge at north side of mouth of Temecula Creek Canyon and adjacent benches on S flank of 'Big' Oak Mtn. 549 Comment
  POM305340  Ceanothus crassifolius Henry J. Ramsey, Henry J. Ramsey 1938-2-25 678 Riverside Temecula Comment
  RSA606775  Ceanothus crassifolius Jon E. Keeley 1996-5-13 27428 Riverside In on N side of Agua Tibia Range, 2-3 km S of Agua Tibia Wilderness boundary gate on trail extending ca. 100 m S of enclosed reservoir on ridge SE of Woodchuck Resort at end of Woodchuck Rd., S of Hwy 79. 1000 Comment
  UCR172242  Ceanothus crassifolius John F. Green 2006-5-10 s.n. Riverside Peninsular Ranges, City of Murrieta; NE side of the Hogbacks. SE of Los Alamos Road, area bordered by Mason Avenue, Callahan Road and Shannon Lane 488 Comment
  UCR87946  Ceanothus crassifolius A. C. Sanders 1994-1-30 14225 B Riverside Box Springs Mtns., Crest of range along the pole line trail from the head of Two Trees Canyon to head of Big Springs Canyon 686 Comment
  RSA701745  Ceanothus cuneatus Steve Boyd, Valerie Soza 2004-6-22 11542 Riverside Western flank of the range, vicinity of Alvin Meadows and Chimney Flats, west of Idyllwild along forest service road 5N13 near 5N06. 1463 Comment
  UCR49763  Ceanothus cuneatus D. C. Hawks 1987-5-16 s.n. Riverside Terwilliger Valley, S of Anza, Terwilliger Road, 0.9 mi. south of intersection with Wellman Road 1189 Comment
  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
  POM49867  Ceanothus greggii var. perplexans P. A. Munz, I. M. Johnston 1924-7-29 8861 Riverside Above Poppet Flat, San Jacinto Mts. 1220 Comment
  RSA6732  Ceanothus greggii var. perplexans B. D. Stark 1933-4-2 4533 Riverside Palm to Pines Road, Pinyon Flats. 1220 Comment
  UC303595  Ceanothus greggii var. perplexans Greata 1908-6-1 6966 Riverside Eden Hot Springs Comment
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Mar 12 2011
  RSA25840  Ceanothus integerrimus var. californicus Carl B. Wolf 1941-8-15 11155 Riverside Santiago Peak, N. side 0.5 mi. from Summit. 1677 Comment
  HSC94288  Ceanothus leucodermis D. Atwood 1993-3-26 17680 Riverside Santa Ana Mtns., 4.8 mi. S of Lake Elsinore along Hwy. 74 808 Comment
  SD7235  Ceanothus leucodermis Daniel Cleveland 1882-5-3 Riverside Temecula Comment
  UC1979666  Ceanothus leucodermis Darin L. Banks, Steve Boyd 1995-3-16 98 Riverside NW Palomar Mtns., Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove, Arroyo Seco drainage. Comment
  RSA0019589  Ceanothus oliganthus var. oliganthus Ora M. Clark 1929-4-6 1950 Riverside South of Hemet. Comment
  RSA496739  Ceanothus oliganthus var. sorediatus Maureen Pendleton 1988-2-1 s.n. Riverside Ca. 2.5 mi. S of Temecula between I-215 and Rainbow Canyon Road. 412 Comment
  RSA569982  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7917 Riverside Palomar Range south of Vail Lake at the north base of Agua Tibia Mountain, Agua Tibia Wilderness Area, Cleveland National Forest. Along trail extending south from end of Woodchuck Road. 792 Comment
  UC314551  Ceanothus palmeri Marcus E. Jones, A. M. 1926-6-20 Riverside 20 mi n Idyllwild; n of Idyllwild Comment
  RSA0022328  Ceanothus perplexans A. C. Sanders, Mark A. Elvin, Julie M. Vanderwier 2002-4-9 24949 Riverside The Badland: hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont. 610 Comment
  UCR35173  Ceanothus perplexans L. B. Ziegler 1969-4-21 349 Riverside San Jacinto Mtns., Pinyon Flats 1200 Comment
  RSA0022332  Ceanothus perplexans E. C. Jaeger 1926-3-24 s.n. Riverside Banning Road 1128 Comment
  SDSU13519  Ceanothus tomentosus W. Miller, C. Mosse 1972-8-9 Riverside Comment
  UC217954  Ceanothus tomentosus P. A. Munz 1922-4-30 5131 Riverside St. John's Grade, south of Hemet. Comment
  RSA535466  Ceanothus tomentosus var. olivaceus Steve Boyd, Tim S. Ross, Orlando Mistretta 1992-2-2 6651 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Lower half of Tenaja Cyn, especially about Fishermans Camp. Comment
  OBI38364  Cenchrus echinatus David J. Keil 1980-11-30 s.n. Riverside Vicinity of Indio Comment
  UCR270169  Centaurea benedicta A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-2 42391 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, vicinity of lab and old Emerson house site 488 Comment
  UCR280836  Centaurea melitensis T. B. Salvato, Gregg Miller 2005-6-3 1370 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
  UCR114951  Centaurea solstitialis D. E. Bramlet 1999-6-22 2813 Riverside San Jacinto Wildlife Area. 396m west of Davis Road and 152m south of the well maintenance road, 854m southwest of the reserve headquarters. 433 Comment
  JEPS106969  Centromadia pungens subsp. laevis Jasmine Watts 2005-7-19 3 Riverside Hemet, S of CA-74 and W of Warren Road Comment
  RSA767269  Centromadia pungens subsp. laevis Scott D. White 2009-8-10 13357 Riverside Temescal Valley: City of Temecula, West bank of Murrieta Creek, from Rancho Califonria Rd to Cherry St. 306 Comment
  UC1536027  Centromadia pungens subsp. laevis R. F. Thorne, P. A. Munz, Earl Lathrop 1968-5-8 37606 Riverside Lake Elsinore: behind levee at SE end of Lake Elsinore, ca. 1 miles S of Elsinore. Comment
  HSC85246  Cerastium glomeratum Steve Boyd 1986-4-20 1723 Riverside Harford Springs County Park, N of big meadow, Gavilan Hills Comment
  UCR31300  Cerastium glomeratum A. C. Sanders, Theo Glenn 1983-4-17 3738 Riverside Santa Ana Mtns., Mesa de Colorado, 5 mi (airline) SW of Murrieta 612 Comment
  UCR59765  Cerastium glomeratum Steve Boyd 1989-3-31 3076 Riverside Peninsular Range, Vail Lake area, south of Hwy 79, 0.25 mi east of Pauba Road 457 Comment
  RSA192158  Cerastium glomeratum E. W. Lathrop 1960-3-24 4665 Riverside 14 miles W of Murrieta. Comment
  POM2527  Cercidium floridum Marjorie Shaw s.n. Riverside Palm Springs. Comment
  RSA645671  Cercidium floridum Scott D. White 1999-4-20 7271 Riverside Blythe Area: Southern foothills of the Big Maria Mts., northwest of Calif. Hwy. 95, ca. 7 road miles north of Interstate 10 / Intake Blvd. jtn. in Blythe. 91 Comment
  CLARK-A1528-4051  Cercocarpus betuloides K. R. Montgomery 1969-9-6 Riverside Reed Valley 1219 Comment
  CAS-BOT-BC135493  Cercocarpus betuloides var. betuloides James R. Shevock 1976-11-24 5384 Riverside Along Calif. Highway 74 near El Cariso Station - Santa Ana Mountains, Cleveland National Forest 670 Comment
  UC64540  Cercocarpus betuloides var. betuloides H. M. Hall 1897-4-17 473 Riverside Beaumont Comment
  UCR207361  Cestrum O. F. Clarke 2002-11-24 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  JEPS86544  Chaenactis artemisiifolia Roy E. Buck 1988-5-28 911 Riverside near top of grade w of Lake Elsinore (on e-facing slope above CA Hwy 74, 2.0 air km nw of confluence of Harlan Canyon & Johnson Canyon drainages, 7 air km w of L. Elsin. town); Elsinore Mountains Comment
  POM265788  Chaenactis artemisiifolia J. C. Roos 1937-5-10 2070 Riverside South of Lake Elsinore Comment
  UCR158500  Chaenactis artemisiifolia A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30037 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
  UCR213535  Chaenactis artemisiifolia A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37805 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, under powerlines near dirt extension of Lake St., 1.1 mi. NW (356 deg. ) of intersection of I-15 and Lake St. 549 Comment
  UCR34891  Chaenactis artemisiifolia L. B. Ziegler 1975-6-11 542 Riverside San Jacinto Mtns., near Hwy 74 at Dry Creek 1009 Comment
  CAS-BOT-BC276403  Chaenactis carphoclinia M. Bourell; R. Patterson 1987-4-14 3269 Riverside Spur N of Box Canyon Highway 195, BLM Conservation Area 150 Comment
  CDA7361  Chaenactis carphoclinia T. C. Fuller 1963-4-23 10277 Riverside Box Canyon Wash, Mecca-Blythe Road (Highway 195), 11.8 miles northeast of Mecca. 0 Comment
  SBBG99384  Chaenactis carphoclinia W. L. Halvorson 1977-2-5 77 -21 Riverside near jct of Interstate 10 and rd to Joshua Tree Nat Monument Comment
  SEINET10799442  Chaenactis carphoclinia David B. Dunn 1946-3-15 Dunn 2053 Riverside Collected on dry plateau in vicinity of Pushawalla Canyon, Indio Hills. Comment
  RSA795744  Chaenactis carphoclinia var. carphoclinia J. Andre 2012-3-19 21312 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
  UC1044698  Chaenactis carphoclinia var. carphoclinia Alice Yates and Jas. E. Wilcox 1952-4-5 9 Riverside between Desert Hot Springs and Bridge of Canal 152 Comment
  HSC5291  Chaenactis fremontii R. A. Eagle 1964-3-28 12 Riverside 1 mile this side of Palm Springs Comment
  SBBG65675  Chaenactis fremontii M. N. Ackley 1928-3-25 Riverside near Edom 64 Comment
  SBBG7877  Chaenactis fremontii H. and M. Dearing 1937-4-10 2869 Riverside ca. 16 mi N of Indio Comment
  UC566687  Chaenactis fremontii H. L. Mason 1928-3-11 4328 Riverside near Indio Comment
  UCR226863  Chaenactis fremontii Jim Andre 2011-2-9 15943 Riverside Sonoran (Colorado) Desert, Coachella Valley, along Varner Road between Desert Hot Springs and Palm Desert, 2 mi north of Hwy I-10 189 Comment
  UCR24931  Chaenactis glabriuscula A. C. Sanders 1980-7-18 01683 Riverside Peninsular Range; San Jacinto Mtns., Garner Valley, near the junction of Thomas Mountain Road and Hwy 74, c. 1 mi SE of the head of Hemet Lake 1345 Comment
  LA83500  Chaenactis glabriuscula var. glabriuscula O. H. Kappler; 1950-4-1 2039 Riverside Cabazon, E of Banning 655 Comment
  UCR136001  Chaenactis glabriuscula var. glabriuscula Virginia Moran 2003-3-12 s.n. Riverside Peninsular Range, Wilson Valley Mitigation Bank (Center for Natural Lands Management), NE of Wilson Valley Road and west of Wilson Creek 915 Comment
  JEPS8846  Chaenactis stevioides W. L. Jepson 2260 Riverside Strawberry Valley, San Jacinto Mt., Strawberry Valley 1676 Comment
  SD247316  Chaenactis stevioides T. B. Salvato, R. T. Hawke, et al. 2013-3-8 7303 Riverside Sonoran (Colorado) Desert: south of Highway I-10, north of the Chuckwalla Mountains, Chuckwalla Valley Road about 1.4 kilometers west of its junction with Augustine Pass Road. 136 Comment
  UCR103591  Chaenactis stevioides George K. Helmkamp, E. A. Helmkamp 1998-2-18 2722 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley; 0.3 mi south of Chuckwalla Rd. on Graham Pass Rd. 122 Comment
  CHSC8085  Chamaesyce albomarginata Edward L. Smith 1958-3-6 347 Riverside Santa Anna Mtns. On Cold Water Canyon, Glen Ivy, near Temescal Canyon Rd. 762 Comment
  JOTR30089  Chamaesyce albomarginata La Doux, Tasha, Alice Miller 2007-5-8 1733 Riverside Joshua Tree National Park. Stop 1: Along Key's View Rd., on disturbed roadside. Common. 1385 Comment
  RSA180469  Chamaesyce albomarginata E. W. Lathrop 1960-5-6 4794 Riverside 10 miles west of Murrieta. Comment
  RSA27703  Chamaesyce albomarginata C. L. Hitchcock 1940-4-2 5925 Riverside Cottonwood Spring wash, Joshua Tree National Monument. Comment
  JEPS22519  Chamaesyce polycarpa Rimo Bacigalupi with Paul Hutchison 1958-2-19 6191 Riverside 9.4 mi n Blythe (in wash); western base of Big Maria Mtns 167 Comment
  RSA433502A  Chamaesyce polycarpa H. de Forest, Freda Detmers 1933-3-25 s.n Riverside Mesa on way to Morongo Valley. Comment
  UC2026395  Chamaesyce polycarpa Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10053 Riverside COLORADO DESERT, CHUCKWALLA MOUNTAINS: Northwest base of the range, south of Eagle Mine Road exit on Interstate 10. Comment
  UC577219  Chamaesyce polycarpa Lewis S. Rose 1934-12-25 34490 Riverside 10 mi n Whitewater; T Cross K Ranch Comment
  RSA614498  Chamaesyce polycarpa var. polycarpa George K. Helmkamp, E. A. Helmkamp 1998-2-5 2664 Riverside Indio Hills, 3 mi. E of Thousand Palms & 1.1 mi. N on Amity Rd. 101 Comment
  RSA549999  Chamaesyce serpens O. F. Clarke 1976-9-23 s.n. Riverside Common weed on UCR campus. Comment
  RSA626234  Chamaesyce serpens L. C. Wheeler 1967-5-15 9549 Riverside University of California at Riverside. Comment
  SJSU4455  Chamaesyce setiloba E. V. Boro 1963-12-26 78 Riverside 5 mi E of Desert Hot Springs Comment
  RSA526175  Cheilanthes clevelandii Steve Boyd, Timothy S. Ross 1990-5-11 4677 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  SEINET238735 Image available Cheilanthes clevelandii A. C. Sanders, Mitch Provance; E. J. Lawlor 2000-1-23 23312 Riverside Lake Skinner area: summit of Black Mtn. 915 Comment
  RSA752550  Cheilanthes covillei Justin M. Wood 2009-3-10 340 Riverside Hwy 243, near base of the mountains, 0.5 miles up the highway from Smith Creek bridge. 695 Comment
  UCR162399  Cheilanthes covillei S. J. Myers, Chet McGaugh 2003-4-7 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1098 Comment
  POM148058  Cheilanthes newberryi J. B. Feudge 1925-3-15 1027 Riverside near Gilman Relief Hot Springs 610 Comment
  RSA495802  Cheilanthes newberryi Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-11 2911 Riverside Vail Lake area, mouth of Temecula Creek Cyn, 1.5 mi west of Vail Lake Dam. 396 Comment
  JEPS19048  Cheilanthes parryi Marjorie D. Clary 1932-3-15 1625 Riverside 12 mi sw Indio; Colorado Desert, Santa Rosa Mts 243 Comment
  JOTR33996  Cheilanthes parryi La Doux, Tasha, M. Harding 2010-4-7 2884 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; side canyon leading north, approx. 1 mile north of park boundary Comment
  POM12203  Cheilanthes parryi P. A. Munz, D. Keck 1922-4-9 4798 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 610 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
  UC424876  Cheilanthes parryi Milo S. Baker 1928-4-2 32926 Riverside Palm Canyon Comment
  UCR181631  Chenopodium Mitch Provance 2003-6-7 7610 Riverside San Bernardino Valley, Jurupa Mountains (extreme northwest end), near Philadelphia Street 262 Comment
  UCR115139  Chenopodium berlandieri var. zschackei Mitch Provance 2000-10-28 2271 Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 290 Comment
  CLARK-A1528-5562  Chenopodium botrys Alfred R. Roos 1947-8-15 Riverside Santa Ana River Comment
  RSA594121  Chenopodium californicum D. L. Banks, Victor Steinmann 1996-4-20 884 Riverside NW Palomar Mountains; Agua Tibia Mountains; N face of Dorland Mtn., on the W side of the Dorland Mountain Arts Colony; Along the road to the Dorland Mountain Arts Colony, approximately 100 m S from its junction with Hwy. 79., Area just north of Sec.19. 484 Comment
  CLARK-A1528-5007  Chenopodium murale John C. Roos 1937-8-17 2408 Riverside San Jacinto Comment
  RSA125318  Chenopodium murale P. H. Raven 1958-2-15 11566 Riverside 24.7 miles east of turn to Corn Springs, Chuckwalla Mountains. Comment
  RSA764302  Chilopsis linearis Doris Bowers 1966-10-16 792 a Riverside Salton Sea - Painted Canyon 0 Comment
  UCR142778  Chilopsis linearis C. B. Wolf 1932-4-26 2983 Riverside Sonoran (Colorado) Desert, 8 mi east of Mecca, on Blythe Road 183 Comment
  UCR199614  Chilopsis linearis Scott D. White, Angelia Carey 2004-7-2 10565 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Poppet Creek Canyon 610 Comment
  UCSB12243  Chilopsis linearis Creighton, B. 1961-5-7 Riverside 3 miles northwest of Cathedral City and 4 miles southeast of Palm Springs, on State Highway 111, in the Coachella Valley 91 Comment
  IRVC28188  Chilopsis linearis subsp. arcuata Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11264 Riverside Choclate-Chuckwalla Mtns region; W base of the Choclate Mtns, along Gas Line Road in major wash system W of Iris Wash drainage. Within boundary of US Navy Choclate Mtn Aerial Gunnery Range Colorado Desert 570 Comment
  UC219074  Chilopsis linearis subsp. arcuata unknown May 1 1906-May 10 1906 170 a6740 Riverside Palm Springs Colorado Desert, Palm Springs Comment
Read comments
Apr 17 2011
  CAS-BOT-BC184872  Chloris virgata S. B. Parish 1912-6-28 8100 Riverside In the drain of the R.R. tank at Mecca. Comment
  RSA457766  Chorizanthe brevicornu Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2129 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  RSA776342  Chorizanthe brevicornu Duncan S. Bell 2010-3-20 638 Riverside Riverside Mountains; in the vicinity of Mountaineer Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 215 Comment
  CAS-BOT-BC191699  Chorizanthe brevicornu var. brevicornu Javier Penalosa 1963-4-10 2786 Riverside Deep Canyon, 3 mi S of Palm Desert 213 Comment
  CAS-BOT-BC191712  Chorizanthe brevicornu var. brevicornu Roxana S. Ferris; Rimo Bacigalupi 1958-3-19 13259 Riverside U.S. gypsum mine property in Little Maria Mts., 2.3 mi above Midland P.O. Comment
  JEPS57601  Chorizanthe brevicornu var. brevicornu E. E. Schellenger May 1920 Riverside e Mecca (Hayfields); Colorado Desert, e of Mecca Comment
  RSA65200  Chorizanthe brevicornu var. brevicornu F. W. Peirson 1920-2-16 1775 Riverside East of Palm Springs. Comment
  RSA518037  Chorizanthe corrugata Steve Boyd, Orlando Mistretta 1986-3-13 1423 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
  UCD84932  Chorizanthe corrugata Chuck Hughes 2010-3-22 204 Riverside About 10.4 miles south of Highway 62, next to railroad tracks. 248 Comment
  RSA561865  Chorizanthe fimbriata Steve Boyd, Tim S. Ross 1992-6-10 7625 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon about 'Potrero Escondido', an isolated area of low relief topping the ridge system due west of the junction on Tenaja Road (7S01), and Los Alamos Road (7S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek. 671 Comment
  RSA674955  Chorizanthe fimbriata Scott D. White, Teresa Salvato 2001-6-8 8565 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  UCR241058  Chorizanthe leptotheca John F. Green 2013-5-17 s.n. Riverside Peninsular Range, SE of intersection of Temescal Canyon Rd. and Indian Truck Trail, south of Temescal Canyon Rd. and Lee Lake (=Corona Lk.), just east of a significant dry drainage that crosses upper Temescal Canyon Rd. and flows into an area just below the Lee Lake dam 351 Comment
  UCR116991  Chorizanthe parryi var. parryi A. C. Sanders, T. B. Salvato 2001-5-3 24072 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  SD173059  Chorizanthe polygonoides var. longispina Patrick McConnell 2006-5-5 1 Riverside Lake Elsinore, Western Riverside County,approximately .3 km southwest of the intersection of Nichols and Coal Roads, in non-native grassland near small drainage 420 Comment
  UC665799  Chorizanthe rigida Ira L. Wiggins 1941-3-24 9583 Riverside along eastern side Salton Sea (1 mi n Imperial County line); eastern side Salton Sea Comment
  VVC2475  Chorizanthe rigida Tim Thomas 2013-3-18 5943 Riverside Sonoran Desert, 10 miles WSW of Blythe NE of Mule Mtns. 116 Comment
  UCR218072  Chorizanthe staticoides Steve Boyd 2010-5-26 12280 Riverside Santa Ana Mountains, Elsinore Peak, southeast of peak along trail running from east flank of peak to easternmost clay knoll along ''old Main Divide Road' 1018 Comment
  POM265700  Chorizanthe uniaristata J. C. Roos 1937-4-23 1807 Riverside At Whitewater. Comment
  RSA779950  Chorizanthe xanti var. leucotheca Duncan S. Bell, Jennifer Pilapil 2011-5-19 2479 B Riverside A side canyon off of Mission Creek canyon approximately 4.5 air miles up canyon from the junction of Highway 62 and Mission Creek Road. 946 Comment
  UCSB1020  Chrysolepis sempervirens White, Arthur 1960-5-14 Riverside Black Mountain lookout, 15 mi. N. of Idyllwild 2133 Comment
  RSA38274  Chrysothamnus nauseosus subsp. consimilis P. A. Munz 1946-10-19 11572 Riverside Upper end of Palm Canyon at jct of hwy 74 and road to old Santa rosa Indian Village 1220 Comment
  RSA340178  Chrysothamnus paniculatus R. F. Thorne, C. W. Tilforth 1980-5-28 54189 Riverside San Bernardino Mountains: Whitewater ridge above old bridge. Comment
  UC1186513  Chylismia brevipes E. G. Linsley and J. W. MacSwain 1960-3-2 60 -6 Riverside 2 mi w Desert Center Comment
  UCD103715  Chylismia brevipes LeRoy Gross; Leland Lubinsky, Victor Steinmann, Linda Worlow 2005-2-17 1408 Riverside Colorado Desert. Chocolate-Chuckwalle Mountains region. Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 479 Comment
  SDSU18673  Chylismia brevipes subsp. brevipes Michael G. Simpson, Kristen Hasenstab 2008-4-3 2957 Riverside Joshua Tree National Park. Wash, along trail to Cottonwood campground, ca. 0.2 mile south of campground, ca. 0.3 mile north-northwest of Cottonwood Spring. 918 Comment
  SBBG100299  Chylismia claviformis W. L. Halvorson 1977-3-8 77 -90 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument Comment
  JOTR34374  Chylismia claviformis subsp. aurantiaca Andre, Jim 2012-4-16 20894 Riverside Joshua Tree National Park. Along Cottonwood Spr. Rd. 1 mile north of South Entrance 583 Comment
  CLARK-A1703-1185  Cirsium occidentale Charles S. Papp 1965-6-13 856 Riverside San Jacinto 914 Comment
  CAS-BOT-BC289647  Cirsium occidentale var. californicum Donald Kyhos 1958-5-16 58 -186 Riverside 1 mile up road toward summit of Mount Santa Rosa, San Jacinto Mountains Comment
  UC30777  Cirsium occidentale var. californicum Geo. F. Reinhardt 1897-6-1 Riverside San Jacinto Valley Comment
  UCD130643  Cirsium occidentale var. californicum E. W. Lathrop 1966-5-8 6453 Riverside 3 miles SW of Corona. Hagador Canyon, Cleveland National Forest, Trabuco District. 274 Comment
  UCR193907  Cirsium occidentale var. californicum A. C. Sanders, Mitch Provance 2008-7-11 35775 Riverside Peninsular Range; San Jacinto Mtns., FS road 5S02 to Coldwater Creek below road to helipad, 1 mi. NE of Mountain Center, c. 1/2 mile NE of Keenwild Fire Station 1463 Comment
  UCR241655  Cirsium occidentale var. californicum T. B. Salvato, Jeffrey Ross 1998-6-9 MOR- 368 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Lion Canyon up to fork in stream 720 Comment
  JEPS59213  Cirsium occidentale var. occidentale W. L. Jepson and H. M. Hall 1901-5-31 1563 Riverside Temescal Wash Dripping Spring, Temescal Wash 335 Comment
  UCR107789  Cirsium occidentale var. occidentale D. L. Banks 1997-5-5 1956 Riverside NW Palomar Mountains, Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, c. 60 m east of its intersection with Pechanga Creek 396 Comment
  CAS-BOT-BC285736  Cirsium vulgare John Thomas Howell 1952-10-24 28866 Riverside Pauba Ranch, about 8 miles east of Temecula Comment
  RSA557323  Cirsium vulgare Julie Greene, Scott D. White 1993-7-5 1390 Riverside San Jacinto Wildlife Area, On raised wet area, west of dirt road. 445 Comment
  CAS-BOT-BC438862  Cistanthe monandra Kitty Fenley 1929-7-20 s.n. Riverside Five miles from Keen Camp on Hemet Grade, Mt. San Jacinto 1524 Comment
  RSA718827  Cistanthe monandra Michael Honer, L. Hulse 2004-4-3 1924 Riverside Rockhouse Canyon, appx. 1/2 mi. N of intersection with Fargo Canyon. Peninsular Ranges, San Ysidro Mountains: W side of Otay Mtn; 1.5 km SSE of Savage Dam (Otay Lake); N of County Prison; near tributary to Otay River, N of O Neal Canyon. 610 Comment
Read comments
Jun 8 2016
  RSA610403  Clarkia R. S. Woglum 1937-5-22 531 A Riverside Peninsular Ranges: Northwest of the Palomar Mountains, Temecula. Comment
  RSA769618  Clarkia E. W. Lathrop 1974-6-4 7401 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  UCR166147  Clarkia dudleyana T. B. Salvato, John F. Green 2004-5-27 567 Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 1 mi SE of Oak Glen Conservation Camp 1402 Comment
  POM256726  Clarkia epilobioides W. Pequegnat 1940-4-13 s.n. Riverside Bedford Truck Trail. Santa Ana Mountains. 793 Comment
  RSA180407  Clarkia epilobioides E. W. Lathrop 1965-5-30 5785 Riverside 6 miles W of Murrieta. Comment
  UCR174325  Clarkia epilobioides A. C. Sanders, T. B. Salvato 2006-6-2 33088 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 579 Comment
  RSA740636  Clarkia purpurea Scott D. White, Justin M. Wood 2008-6-18 12212 Riverside San Jacinto Mountains: K Flat Meadow. 1433 Comment
  SEINET7072848  Clarkia purpurea A. G. Vestal 1963-5-20 s.n. Riverside Long Valley Road at Tececula and at the junction with Route 395 (115). Coordinate datum: WGS84/NAD83. (33? deg. 30' 3" North Latitude, -117? deg. 9' 3" West Longitude, Coordinate datum: NAD27.). Comment
  UC76444  Clarkia purpurea subsp. quadrivulnera Miss M. Alice King May 1893 Riverside Menifee Comment
  UCR180053  Clarkia purpurea subsp. quadrivulnera Mitch Provance 2005-5-18 9800 Riverside Warm Springs Valley, Nichols road wetland area at Alberhill Creek, south of the I-15 Freeway and Collier Ave., along the SE side of Pierce St., properties on both the NE and SW sides of Baker St. in the city of Elsinore 396 Comment
  RSA92747  Clarkia purpurea subsp. quadrivulnera J. C. Roos 1952-5-26 5716 Riverside Hass Ranch. Reche Canyon. 457 Comment
  POM12788  Clarkia rhomboidea P. A. Munz 1922-6-23 5771 Riverside Keen Camp, San Jacinto Mountains. 1524 Comment
  UCR215130  Claytonia parviflora Sarah C. Pasquini 2008-4-18 13 Riverside Peninsular Range; San Jacinto Mtns., c. 6.5 miles south of city of Banning, 200 m down Mt. Edna Road off hwy 243 1160 Comment
  UCR179210  Claytonia perfoliata Mitch Provance, Tracy Tennant 1998-6-16 MOR- 387 Riverside San Bernardino Mtns., Morongo Indian Reservation, 0.5 mi. north of junction of East Branch and Millard Canyon 1220 Comment
  UCR230211  Claytonia perfoliata A. C. Sanders 2011-4-6 38979 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  UCR86887  Claytonia perfoliata subsp. perfoliata A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16285 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
  RSA16374  Clematis pauciflora Percy C. Everett 1935-6-17 7157 Riverside Coldwater Canyon Trail to Santiago Peak., 2 miles above Glen Ivy Resort. 610 Comment
  RSA386285  Clematis pauciflora Anstruther Davidson 1893-04 s.n. Riverside Palm Springs. Comment
  RSA386290  Clematis pauciflora E. Crow 1929-3-17 199 Riverside Glen Ivy Hot Springs, Santa Ana Mts. Comment
  UC667312  Clematis pauciflora Annie M. Alexander and Louise Kellogg 1941-5-4 2115 Riverside Joshua Tree Nat'l Monument, Barker Dam 1310 Comment
  UCR107383  Clematis pauciflora B. G. Pitzer 1997-3-23 2959 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
  POM230623  Cleome isomeris I. W. Clokey 1935-4-17 6641 Riverside Cottonwood Springs. Comment
  RSA556486  Cleome isomeris Julie Greene 1993-3-13 1050 Riverside West of Poleline Rd. 457 Comment
  CDA7438  Cnicus benedictus K. E. Hoffmaster 1958-5-13 383 -58 Riverside Indio Area. 0 Comment
  UCR62143  Collinsia childii Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2273 Riverside San Jacinto Mtns, Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest 1700 Comment
  UCR4111  Collinsia concolor Ronald M. Cope 1965-8-3 s.n. Riverside Riverside, canyon 0.5 mi east of a point on Canyon Crest Drive 1.5 mi south of Fire Prevention Laboratory 335 Comment
  RSA0117400  Collinsia concolor N. C. Cooper 1945-5-24 1642 Riverside Big Oaks Canyon, Banning. 1220 Comment
  UCR171984  Collinsia heterophylla John F. Green 2006-4-25 s.n. Riverside Peninsular Ranges, City of Temecula; Long Canyon, Southern California Edison right of way, intersection of Southern Cross Road and Agena Street W to Candida Drive 366 Comment
  HSC28498  Colubrina californica Richard Spjut 1973-4-10 3296 Riverside Colorado Desert, N face of Chuckawalla Mtns., 3-4 mi. S of Desert Center 305 Comment
  CAS-BOT-BC216025  Convolvulus Steve Boyd 1986-5-1 1810 Riverside Lower south slopes of Bachelor Mtn., east end of Lake Skinner, Bachelor Mtn. Comment
  SBBG94914  Convolvulus arvensis E. LaRue 1990-4-10 Riverside midway between Pauba Valley and Wolf Valley, 1/2 mi N of the Pechanga Indian Reservation 365 Comment
  RSA543901  Convolvulus simulans Steve Boyd 1991-3-20 6268 Riverside Temescal Cyn, S flank of Alberhill Mt., W end adjacent to old clay mine area. 426 Comment
  UCR266814  Convolvulus simulans Mitch Provance, Matt Amalong 2015-3-25 315- 30 Riverside Paloma Valley, Murrieta, old Clydesdale horse ranch 0.4-0.6 miles S of Keller Rd., along unmarked dirt portion of Menifee Rd. 450 Comment
  RSA412342  Cordylanthus rigidus subsp. setiger H. de Forest, Jack Rempel 1932-10-22 19341 Riverside Pines to Palms HIghway Comment
  POM9789  Cordylanthus rigidus subsp. setiger E. C. Jaeger 1921-11-15 254 Riverside Tanks, 1 mile east of Keyes Ranch. Comment
  POM8240  Coreopsis californica P. A. Munz, R. D. Harwood 1920-3-20 3385 Riverside Temescal Canyon. 366 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
  JOTR32157  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
  UC488912  Cornus nuttallii C. V. Meyer June 1927 176 Riverside Dark Canyon San Jacinto Mts., Dark Canyon 1828 Comment
  RSA801945  Cornus sericea subsp. occidentalis LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6175 Riverside Logan Creek, north of the community of Pine Cove, and just west of road (5S09). 1799 Comment
  CAS-BOT-BC287227  Cotula australis Mrs. C. M. Wilder 1908-3-1 s.n. Riverside At Riverside Comment
  UCR98703  Cotula australis S. J. Myers 1995-6-9 s.n. Riverside Peninsular Range, Lake Elsinore, 0.5 mi south of intersection of Grand Ave. and Ortega Hwy (State Hwy 74) 457 Comment
  RSA612818  Cotula australis D. L. Banks 1997-3-1 1351 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. Pechanga Creek, east of the Fiesta Grounds to the spring on the northern fork of Pechanga Creek at the eastern end of the Reservation. 423 Comment
  CAS-BOT-BC291360  Cotula coronopifolia A. J. McC. 1892-1-1 s.n. Riverside Elsinore Comment
  UCR4049  Cotula coronopifolia Carole Sims 1965-3-25 s.n. Riverside Santa Ana River Valley, Sandy south bank of Green River in area c. 100 yds east of Green River Shell Service Station, just before the Orange Co line of Riverside Fwy (91) 213 Comment
  SD125721  Crassocephalum crepidioides A. C. Sanders 1986-9-15 6960 Riverside Temecula. Comment
Read comments
Sep 10 2011
  RSA356741  Crassula aquatica R. F. Thorne 1973-5-23 45523 Riverside Santa Rosa Plateau - Mesa de Colorado. 610 Comment
  UCR153366  Crassula connata LeRoy Gross, Valerie Soza 2003-5-8 830 Riverside Peninsular Ranges; San Jacinto Mountains region, North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 777 Comment
  UCR155158  Crassula connata A. C. Sanders, Kelly Volansky 2005-3-17 29202 Riverside Perris-Aguanga Basin Region, French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., c. 0.5 mi. NE of Adobe Spring, near San Diego Aqueduct 412 Comment
  UCR91551  Crassula connata A. C. Sanders, L. Lubinsky, A. Knapp, P. J. MacKay, C. L. Sanders 1995-2-12 15920 Riverside Sonoran (Colorado) Desert, Coachella Valley, alluvial fan below the Little San Bernardino Mtns., Fargo Canyon Road, 1.35 mi. east of Dillon Road 98 Comment
  CSUSB616  Crassula erecta Paul M. Estes 1962-3-17 Riverside Box Springs Mountains West slope of Box Springs Mountains, 1.5 miles west of Big "C" Road in dry stream bed. 761 Comment
  UCR241833  Crassula tillaea A. C. Sanders, Timothy W. Chumley 2013-4-2 40729 Riverside Peninsular Range, Temescal Canyon at west side of Horsethief Canyon Rd., south of I-15 Fwy, SE of Corona (Lee) Lake 390 Comment
  CLARK-A1528-5524  Crepis capillaris John C. Roos 1950-4-22 4756 Riverside Reche Canyon 761 Comment
  UCR274538  Cressa truxillensis Mitch Provance, Ken Halama 2003-6-15 17050 Riverside Temescal Mountains, Mead Valley, just SSW of the corner of Cajalco Rd. and Wood St. Comment
  JOTR37486  Crossosoma bigelovii Hodges, Stephen R. 2016-3-19 615 Riverside Joshua Tree National Park. Coxcomb Mountains, ascending north up Hummingbird wash towards the Inner Basin Comment
  UC668376  Crossosoma bigelovii Annie M. Alexander and Louise Kellogg 1941-4-24 2074 Riverside gorge of Dry Morongo Creek Morongo Valley 640 Comment
  UCR602  Crossosoma bigelovii S. C. Warner 1956-4-28 s.n. Riverside Sonoran Desert, Small canyon in hills east of Morongo Wash Road Comment
  UCSB3801  Crossosoma bigelovii Walker, Clifford 1954-4-10 Riverside Near the head of Whitewater Canyon Comment
  JOTR30082  Croton californicus La Doux, Tasha, Bill Truesdell 2006-10-3 1721 Riverside Joshua Tree National Park. Pinto Basin: (Stop 1) east side of Hexie Mtns. at mouth of Pinkham Spring Canyon 668 Comment
  PASA1841  Croton californicus R. Peirce 1966-4-21 Riverside Windy Point, 2 mi. S. of White Water P.O. Comment
  POM87335  Croton californicus Marcus E. Jones 1903-5-11 A.M. Riverside Banning. 701 Comment
  RSA33619  Croton californicus N. C. Cooper 1944-7-15 1546 Riverside Banning. 701 Comment
  RSA429  Croton californicus J. T. Howell 1928-7-9 1060 Riverside Temescal Canyon, 6 miles south of Glen Ivy 335 Comment
  SBBG119149  Croton californicus M. Sripracha, K. Boyd 2004-2-14 5 Riverside Snow Crk, ca. 25 m from Snow Crk Rd, ca. 0.7 km S of St Hwy 111 352 Comment
  SD229136  Croton californicus Dick Schwenkmeyer 2012-10-16 933 Riverside Approx. 2 mi. south of U.S. Highway 10 at Cabazon. 551 Comment
  UC63984  Croton californicus L. D. Copeland May 1904 Riverside Palm Springs Colorado Desert Comment
  UCR167260  Croton californicus John F. Green 2005-3-14 s.n. Riverside Sonoran (Colorado) Desert, E of N shore of Salton Sea, WNW of Rancho Dos Palmas between Coachella Canal siphons 29 and 30 24 Comment
  UCR256758  Croton californicus T. B. Salvato, Matthew Malle, Thomas M. Sullivan Jr 2014-4-22 7890 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, dirt extension of Lake Street, c. 1.3 mi north of Hwy 15 and Temescal Canyon 555 Comment
  CDA34537  Croton californicus Mike Lahti 2009-9-1 PDR# 1501825 Riverside 0 Comment
  POM319712  Croton californicus var. mohavensis Patricia Wilder 1971-5-13 4938 Riverside Prado Flood Control Basin at base of Prado Dam on small rise, Drainage area Santa Ana River, Flood Plain. 152 Comment
  RSA674754  Crypsis schoenoides Scott D. White 2001-6-29 8632 -A Riverside Meniffe Valley: About 1.4 air mi SW of the I-215/ Newport Rd. Interchange, northwest of the intersection of HollandRd. and Bradley Rd. 439 Comment
  UCR214584  Cryptantha A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-7 37863 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, along dirt extension of Lake St., 0.8 mi. north (09 deg. ) of intersection of I-15 and Lake St. 482 Comment
  RSA791597  Cryptantha angustifolia D. Silverman 2010-3-24 7825 Riverside South Palen Lake, Chuckawalla Valley, 5.0 km SE of Sidewinder Well, 2.4 km SW of Palen Dunes Dr., and 3.7 km N of Interstate 10. 130 Comment
  SEINET3083658 Image available Cryptantha angustifolia Robert F. Thorne, Drs. Fosberg, Sachet, & Herbst 1983-4-23 55469 Riverside San Bernardino Mts: Side-canyon on W side of Whitewater canyon, ca 3.3 mi N of Whitewater Post Office 594 Comment
  UCR102724  Cryptantha angustifolia B. G. Pitzer 1998-1-24 3410 Riverside Sonoran (Colorado) Desert, N foot of Chuckwalla Mtns, Eagle Mt Rd, south side of Hwy I-10, 0.8 mi south of Hwy at powerline rd, & wash directly south of road 500 Comment
  SBBG53362  Cryptantha barbigera J. Zabriskie 1975-3-26 Riverside Boyd Deep Cyn Research Center Comment
  SBBG92731  Cryptantha barbigera D. Charlton 1988-2-18 1133 Riverside Fargo Cyn Rd to Cottonwood Wash, parallel to Interstate 10, ca. 1 mi E of jct of Dillon Rd and Fargo Cyn Rd 609 Comment
  UC857070  Cryptantha barbigera Milo S. Baker 1928-4-3 2776 b Riverside Palm Canyon Comment
  UCR163919  Cryptantha barbigera A. C. Sanders, P. J. MacKay, Tim Thomas 2005-2-26 29138 Riverside Sonoran (Colorado) Desert, SE of Hwy 177 toward dunes above Palen Dry Lake, SE end of Coxcomb Mtns. 168 Comment
  UCR137634  Cryptantha barbigera var. fergusoniae George K. Helmkamp 1998-2-5 2645 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, 1.1 mi. west of Calif. Hwy 111 on Tramway Rd. 335 Comment
  UCR196105  Cryptantha barbigera var. fergusoniae Jim Andre 2006-4-6 8148 Riverside S Mojave Desert, Joshua Tree National Park, c. 50 m north of the Keys View Parking area, at south end of Little San Bernardino Mtns 1553 Comment
  UCR214407  Cryptantha costata A. C. Sanders, Richard Dwerlkotte 2010-3-22 37513 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, 2 mi. ESE (98 deg. ) of Sidewinder Well, south end of Palen Dry Lake, SW of Palen Mtns. 129 Comment
  UCR30055  Cryptantha decipiens A. C. Sanders 1983-4-9 3721 Riverside Little San Bernardino Mountains, Morongo Wash, c. 2 mi south of San Bernardino County Line, just east of Hwy. 62, at the foot of the Little San Bernardino Mountains, and 12 mi NNW of Palm Springs 549 Comment
  UC1186497  Cryptantha holoptera Peter M. Ray 1949-3-12 1391 Riverside e of Mecca; Orocopia Mountains, Painted Canyon Comment
  RSA517930  Cryptantha intermedia Steve Boyd 1986-3-1 1367 Riverside Gavilan Hills, Gavilan Plateau: 1/4 mile south of Harford Springs County Park. 640 Comment
  RSA741564  Cryptantha intermedia Scott D. White, Justin M. Wood 2008-6-16 12144 Riverside Meadow at Quinn Flat. 1378 Comment
  RSA771783  Cryptantha intermedia Orlando Mistretta, Duncan Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4958 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 1-2 miles above Whitewater Visitor Center (Whitewater Trout Farm)., Between N34.01961, W116.68175 and N34.01041 and W116.67141. 850 Comment
  SD181668  Cryptantha intermedia Scott D. White, Teresa Salvato 2001-6-8 8580 Riverside Santa Ana Mountains; southern margin of county, just northeast of Rainbow Valley. 334 Comment
  SDSU5408  Cryptantha intermedia S. J. Barnhart 1966-4-17 660417 -9 Riverside 0.1 mi. east of McAllister St. along the Metropolitan Water Co. Utility Rd (dirt) . Intersection of Utility Rd. and McAllister St. is 1.5 mi. south-east of the intersection of McAllister St. and Victoria Ave. 457 Comment
  SEINET2075870  Cryptantha intermedia G. Rink 1999-5-22 Riverside 6 miles S of Banning on Highway. 243 Comment
  UCR112957  Cryptantha intermedia B. G. Pitzer 1998-3-1 3546 Riverside Lakeview Mtns, Maze Stone county historical marker & picnic area, E side of mtns, on W side of Reinhardt Canyon 610 Comment
  UCR149859  Cryptantha intermedia Scott D. White, Michael Honer 2004-4-6 10039 Riverside Perris/Elsinore Basins, Temescal Valley: just N of the I-15 freeway and east of Indian Truck Trail, S and west of Lee Lake 396 Comment
  UCR16162  Cryptantha intermedia Tony Beck 1968-4-28 680428- 9 Riverside San Bernardino Mtns/ Colorado Desert, one-half mi. south of fish pond in Whitewater Canyon, near where river crosses the road. Comment
  UCR215620  Cryptantha intermedia Alejandra Martinez-Berdeja, Cara M. Stripe 2010-4-24 07 Riverside Peninsular Range, Box Springs Mountains, eastern edge of Riverside; Two Trees Canyon Trail near the trailhead 409 Comment
  RSA0062497  Cryptantha intermedia var. intermedia J. M. Andre 2012-6-15 30492 Riverside San Jacinto Mountains: Along Hwy 243 at Mt Edna Rd, approx. 1 mi. north of McMullen Flat, 5.9 mi. south of Interstate 10 at Banning; SB Natl. Forest. 1171 Comment
  JOTR29433  Cryptantha maritima La Doux, Tasha, M. Bell, B. Truesdell 2006-3-22 1367 Riverside Joshua Tree National Park. East Wide canyon 499 Comment
  JOTR37504  Cryptantha maritima Hodges, Stephen R. 2016-3-1 630 Riverside Joshua Tree National Park. Northern edge of the Eagle Mountains where they border the Pinto Basin. Approximately 3 kilometers west of Pinto Wells. Ascending up towards the ridge line on loose unconsolidated sand ramps Comment
  POM48530  Cryptantha maritima F. M. Reed 1925-3-17 4936 Riverside Tahquitz Canyon - Palm Springs. Comment
  UC1186496  Cryptantha maritima Peter M. Ray 1949-3-5 1334 Riverside near 1000 Palms; Coachella Valley, Willis Palms Comment
  UC598645  Cryptantha maritima John Bright 1936-4-21 12823 Riverside n of Palm Springs; Colorado Desert Comment
  RSA4902  Cryptantha maritima var. pilosa C. B. Wolf 1932-4-27 3018 Riverside Colorado Desert, 17 miles E of Mecca on the Blythe road. 152 Comment
  SD247354  Cryptantha micrantha subsp. micrantha A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41430 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. 427 Comment
  SBBG118781  Cryptantha microstachys S. D. White 1999-6-6 7442 Riverside near Idyllwild Community Service District sewage ponds at terminus of USFS Rd 5S24.2; T5S R2E boundary of S15/22 1430 Comment
  SD212524  Cryptantha microstachys A. C. Sanders 2006-5-19 32441 Riverside Hills between Murrieta and Menifee Valley, west of I-215, South of Bundy Canyon/Scott Road and North of Clinton Keith Road. 518 Comment
  UCR133655  Cryptantha microstachys 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
  SEINET238563  Cryptantha muricata George K. Helmkamp 1998-6-27 4094 Riverside Santa Rosa Mtns.: 3.3 mi S of Hwy 74 along Santa Rosa Mtn Rd. in vicinity of an unnamed spring. 1585 Comment
  UCR111557  Cryptantha muricata Mitch Provance 1999-5-4 1705 Riverside San Bernardino Valley Region, Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  UCR153367  Cryptantha muricata LeRoy Gross, Valerie Soza 2003-5-8 832 Riverside Peninsular Ranges; San Jacinto Mountains region, North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 777 Comment
  RSA0123115  Cryptantha nevadensis var. nevadensis Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9022 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
  UC1168705  Cryptantha pterocarya Peter H. Raven 1958-3-16 11854 Riverside below Cottonwood Springs; Joshua Tree National Monument Comment
  JOTR34336  Cryptantha utahensis Andre, Jim 2012-4-11 20678 Riverside Joshua Tree National Park. N. end of Hexie Mountains, Hidden Tank Picnic Area, approx. 8 mi south of north entrance station, and 1.4 mi SW of paved road (Rte 11) 1076 Comment
  RSA595914  Cucurbita foetidissima D. L. Banks, Lauren Raz 1996-11-5 1173 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, E of San Gabriel Church; Along the main road in the Reservation, approximately 20 m E of its intersection with Pechanga Creek. 393 Comment
  JOTR35004  Cucurbita palmata La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3106 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road Comment
  UC921126  Cucurbita palmata V. D. Miller 1945-5-17 Riverside Cottonwood Springs 1066 Comment
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Oct 9 2010
  UCR241236  Cucurbita palmata Tracy Tennant, Jeffrey Ross 1998-7-30 MOR- 679 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, lower Hathaway Canyon below the road fork 854 Comment
  RSA700862  Cuscuta Michael Wall 1996-7-6 192 Riverside San Jacinto Valley, W side of Ramona Expressway in swale beginning 0.4 mi SE of Sanderson continuing for >0.5 mi. 488 Comment
  POM319696  Cuscuta californica Patricia Wilder 1971-5-13 4972 Riverside Prado Flood Control Basin at top of Prado Dam on west end, Drainage area Santa Ana River, Flood Plain. 229 Comment
  CAS-BOT-BC224608  Cuscuta californica var. papillosa D. A. Johansen; J. A. Ewan 1932-4-11 7095 Riverside Deep Canyon Wash, Colorado Desert Comment
  SD126648  Cuscuta californica var. papillosa J. C. Roos 1946-12-7 3184 Riverside Pushawalla Wash Comment
  UCR31665  Cuscuta californica var. papillosa John C. Roos 1946-12-7 3184 Riverside Western Colorado Desert, Pushawalla Wash Comment
  UCR99404  Cuscuta californica var. papillosa Scott D. White 1996-8-15 4467 Riverside San Jacinto Mtns., Idyllwild Area: Alvin Meadows and unnamed canyon upstream. Upper margin of area that burned in July, 1996 1585 Comment
  RSA0100137  Cuscuta subinclusa Duncan S. Bell, Josh Brito, John Woodruff 2015-7-15 8555 Riverside Santa Rosa Mountains; south of Cactus Spring Trail; in Horsethief Creek. 1064 Comment
  UCR84979  Cycloloma atriplicifolium A. C. Sanders, K. C. Rose, D. Woodard 1995-3-22 16225 Riverside San Jacinto Mountains, San Gorgonio Pass: on and near a rocky spur at the N foot of the mountains, SW of Verbenia Ave, west of Snow Creek, east of Cabazon 550 Comment
  CAS-BOT-BC59392  Cylindropuntia acanthocarpa var. acanthocarpa Roxana S. Ferris 1928-4-21 7179 Riverside Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC59399  Cylindropuntia bigelovii var. bigelovii Carl B. Wolf 1932-10-12 4301 Riverside Field redacted by CAS, contact the data manager for more information 914 Comment
  SEINET5624452 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2013-4-15 17726 Riverside Chuckwalla Mountains, just south of Corn Springs Wash, 250m east of its confluence with Irish Wash, 500m NW of Aztec Well, 74 km west of Blythe; Desert Center 7.5' USGS topographic quadrangle 641 Comment
  SEINET5624466 Image available Cylindropuntia chuckwallensis Marc A. Baker, Michelle Cloud-Hughes 2012-3-25 17525 .6 Riverside Northeast end of Chuckwalla Mountains, 11km SSE of Desert Center, 70km west of Blythe, two-track branching south from Com Spring Road, 1.1 km W of Corn Spring Campground, 400 south of Com Springs Wash 525 Comment
  RSA0031148  Cylindropuntia echinocarpa Marc Baker 2013-3-10 17699 .2 Riverside 900m north of Chiriaco Summit, 48km east of Indio. 545 Comment
  UC1560187  Cylindropuntia ramosissima E. Yale Dawson May, 1932 Riverside Desert Center Colorado Desert Comment
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Apr 5 2011
  RSA795945  Cynanchum utahense Duncan S. Bell 2009-4-19 273 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  SEINET3004990  Cynanchum utahense G. Rink, M. Baker 2011-4-3 10418 Riverside Northwest of Blythe, east of the McCoy Mtns, small gullies in desert pavement 170 Comment
  RSA613958  Cyperus difformis A. C. Sanders 1994-7-27 15165 Riverside Riverside: Santa Ana River between the San Bernardino County line and the Market Street Bridge. 246 Comment
  UCR100174  Cyperus eragrostis Scott D. White, S. Ogg 1994-10-17 2490 Riverside SW Perris Basin, Temecula: Murrieta Creek channel directly west of Cherry Street 311 Comment
  RSA502511  Cyperus involucratus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3566 Riverside Vail Lake area, along Arroyo Seco drainage from jtn. with Kolb Creek, S to w/in 1/4 mi Hwy 79. 457 Comment
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Dec 17 2014
  UCR60752  Cyperus odoratus Bill Wagner 1989-11-28 s.n. Riverside Peninsular Range, c. 1 mi west of Santa Margarita River, 3-4 mi south of Temecula. Comment
  SD136986  Cyperus squarrosus Steve Boyd, Tim Ross 1992-5-15 7391 Riverside Southern Santa Ana Mountains; San Mateo Canyon Wilderness Area; major lateral drainage north of Bear Canyon; vicinity of the junction of Tenaja and Morgan Trails; west of Round Potrero. 671 Comment
  RSA681031  Dalea mollis Scott D. White, Michael Honer 2003-5-14 9263 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  UC665905  Dalea mollis Ira L. Wiggins 1941-3-27 9680 Riverside 8 mi. n.w. Desert Center; s. end Coxcomb Mts. Comment
  SBBG69371  Datisca glomerata V. Duran 1933-7-1 3494 Riverside near Santa Rosa Comment
  UCR84862  Datisca glomerata Peter L. Morrell, Stan C. Spencer 1993-5-28 244 Riverside San Bernardino Mtns., bank of San Gorgonio River, c. 4.25 air mi north of gate at entrance to Banning Canyon 1600 Comment
  RSA518036  Datura discolor Steve D. Boyd, Orlando Mistretta 1986-3-13 1403 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
  UCR41237  Datura wrightii N. M. Fellows 1984-3-20 8 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Oasis de Los Osos Preserve, off Snow Creek Canyon at the north foot of the San Jacinto Mtns, 1 mi west of Snow Creek Village 488 Comment
  SEINET7062848  Daucus pusillus A. G. Vestal 1947-3-29 s.n. Riverside About 0.3 mile west of Lake Elsinore. Railroad Canyon. UTM Zone 11, 464455mE, 3724990mN. (WGS84/NAD83). 393 Comment
  UCR152646  Daucus pusillus A. C. Sanders 2005-4-22 29583 Riverside Gavilan Hills, Gavilan Plateau c. 0.75 air mi. SE of summit of Gavilan Peak 625 Comment
  CAS-BOT-BC293827  Deinandra fasciculata John Thomas Howell 1930-5-10 4789 Riverside 2 miles south of Perris Comment
  SEINET6050431  Deinandra kelloggii Robert Allen, Allen, Linnel 2008-7-27 Riverside Santa Ana Mountains. Long Canyon watershed. Along Long Canyon Road. 136 meters (0.08 air miles) northwest of jct. with Ortega Hwy (SR74). In meadow south of roadway. Comment
  UCSB61511  Deinandra kelloggii Sanders, A. 1993-5-17 Riverside Hemet, S side of Florida Ave. (Hwy. 74) on the E side of California Ave.; (T5S, R2W, NW/4 sec. 13) 460 Comment
  CAS-BOT-BC131021  Deinandra mohavensis A. C. Sanders; T. Schram; D. Wappler 1994-10-4 15775 Riverside San Jacinto Mountains: nameless tributary of Azalea Creek ca. 1 mile due S of the Twin Pines Ranch buildings 1130 Comment
  UCR252706  Deinandra mohavensis R. E. Riefner Jr. 2014-6-24 14- 194 Riverside Perris-Aguanga Basin, city of Hemet, Santa Rosa Hills, Simpson Park, south c. 0.15 mi from Rawlings Road and Margret Lane 740 Comment
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Feb 4 2015
  UCR252762  Deinandra mohavensis Ana Hernandez, John Dvorak 2011-8-9 029 Riverside San Jacinto Mountains, Hwy 243, 2.8 km north of Mountain Center 1580 Comment
  UC1792831  Deinandra paniculata A. C. Sanders 2004-7-1 28373 Riverside Perris-Aguanga Surface/Menifee Valley Region: Paloma Valley, ca. 1.5 mile WNW of the Menifee-Antelope Community Hall, 5 miles due south of Sun City 475 Comment
  UCR18913  Delphinium cardinale John C. Roos 1965-6-19 s.n. Riverside Peninsular Range; Santa Ana Mtns, Sky Line Drive, south of Corona Comment
  CAS-BOT-BC33221  Delphinium parishii Samuel Bonsal Parish 1882-4-1 1222 Riverside Agua Calienta (annotated as Palm Springs) Comment
  CLARK-A1528-3858  Delphinium parishii subsp. parishii John C. Roos 1937-4-18 1368 Riverside Cabazon Comment
  RSA0019613  Delphinium parishii subsp. parishii R. S. Woglum 1937-5-22 582 Riverside Santa Rosa Mountains, near Santa Rosa Indian Reservation. Comment
  RSA784840  Delphinium parryi J. D. Olmsted 1962-5-2 3461 Riverside In small arroyo north of turn from US 60 to Gilman Hot Springs, San Timoteo Badlands 564 Comment
  UCR174549  Delphinium parryi Jennifer H. Jones 2006-6-6 401 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
  RSA0028783  Delphinium parryi M. Wall, Susan Jett 1993-5-19 72 Riverside Sage Rd, 4.6 mi S of Red Mtn Rd SE of Hemet. Associated plants include Adenotstoma fasciculatum, Eriogonum fasciculatum, Collinsia concolor, and exotic grasses. Comment
  RSA394494  Delphinium parryi subsp. purpureum N. C. Cooper 1949-6-29 4328 Riverside Hemet Lake, San Jacinto Mountains. 1524 Comment
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Nov 22 2011
  HSC16738  Dendromecon rigida C. L. Hitchcock 1966-3-15 24160 Riverside 3 mi. E of Glen Ivy Hot Springs Comment
  UC1931201  Deschampsia danthonioides Scott D. White, Justin Wood 2008-6-19 12267 Riverside San Jacinto Mountains: Meadows at Baldy Mtn. Comment
  UCD62838  Deschampsia danthonioides var. gracilis Robert F. Thorne; E. Lathrop, O. Clark, S. Carlquist 1968-4-18 37430 Riverside Santa Rosa Plateau. On Mesa de Colorado, Rancho California. 670 Comment
  UCR2319  Deschampsia elongata F. M. Reed 1920-7-14 4408 Riverside San Jacinto Mtns., Strawberry Creek above Idyllwild 1646 Comment
  RSA740251  Descurainia obtusa subsp. adenophora Scott D. White, Justin M. Wood 2008-7-9 12428 Riverside K Flat, from large pond downstream to meadow. 1427 Comment
  JOTR28912  Descurainia pinnata La Doux, Tasha, Bill Truesdell 2004-2-24 1147 Riverside Joshua Tree National Park. Eagle Mountains; Trail to Lost Palms Oasis, southeast of Cottonwood Oasis 914 Comment
  RSA697471  Descurainia pinnata Mary Edmunds 1932-3-26 s.n. Riverside Mc Intyre Ranch-Oasis Coachella Valley. Comment
  SBBG2468  Descurainia pinnata H. and M. Dearing 1942-3-1 4804 Riverside Cathedral City Comment
  UCR264604  Descurainia pinnata Mitch Provance 2012-6-19 196- 11 Riverside San Bernardino Valley, Santa Ana River Bottom, Tequesquite Creek and associated wetlands W of Rubidoux Ave 226 Comment
  CAS-BOT-BC43362  Descurainia pinnata subsp. glabra E. A. McGregor 1917-3-19 738 Riverside Colorado Desert. Indio Sands. U.S.Date Garden. Comment
  POM13046  Descurainia pinnata subsp. glabra P. A. Munz, D. D. Keck 1922-4-9 4858 Riverside Vicinity of Corn Springs, Chuckwalla Mountains. 457 Comment
  RSA740649  Descurainia sophia Scott D. White, Justin M. Wood 2008-6-19 12272 Riverside Meadows at Baldy Mtn. 1585 Comment
  RSA0120231  Dichelostemma capitatum Duncan S. Bell, Thomas Stoughton 2016-4-14 9287 Riverside Santa Rosa Mountains; near the head of Deep Creek and near the trailhead of the Cactus Spring Trail, at an old mining area above this trail. 1219 Comment
  UCR120947  Dichelostemma capitatum A. C. Sanders, Mitch Provance, T. B. Salvato, C. L. Sanders 2001-4-3 23882 Riverside Perris-Aguanga Basin region, Temecula, along east side of pipeline NE of Long Canyon, west of San Diego Aqueduct 381 Comment
  JOTR32331  Dichelostemma capitatum subsp. pauciflorum La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-5-9 2453 Riverside Joshua Tree National Park. West of Queen Mountain, southern end of Wonderland of Rocks; Wonderland Wash, north of Mill Street Mine parking area. Active wash corridor with sandy bottom and surrounded by granitic outcrops and pediments; with heavy foot traffic (Stop 1) 1297 Comment
  CSUSB26  Dichelostemma pulchellum Karen Cook 1966-2-22 Riverside University of California, Riverside (UCR) campus. 200 yards southeast of intersection of street leading to agriculture buildings. 304 Comment
  RSA208915  Dichelostemma pulchellum var. pulchellum Robert L. Rutherford 267 Riverside Banning. Comment
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Mar 21 2011
  CAS-BOT-BC292190  Dicoria canescens John Thomas Howell 1928-11-4 4087 Riverside Below Palm Canon [Canyon] on road from Indio to Palm Springs Comment
  UCR109571  Dicoria canescens R. D. Goeden, Don W. Ricker 1986-5-29 s.n. Riverside Coachella Valley, Indio, Monroe St. -6 Comment
  UC64795  Dieteria asteroides var. asteroides E. E. Schellenger 1904-12-1 15 Riverside Paloverde Colorado Desert Comment
  UC68944  Dieteria asteroides var. asteroides H. M. Hall 1905-4-1 5920 Riverside Paloverde Valley Colorado Desert, Paloverde Valley 91 Comment
  UCR84061  Digitaria sanguinalis A. C. Sanders, L. Ard 1994-7-11 15062 Riverside San Bernardino Mtns., Cherry Valley, irrigated landscaping at the Edward Dean Museum, Oak Glen Road, 1 mi north of Orchard St. 1000 Comment
  CAS-BOT-BC153098  Diplacus fremontii H. M. Hall 1901-6-1 2049 Riverside In the vicinity of Chalk Hill 1524 Comment
  SEINET270935  Diplacus fremontii Richard J. Shaw 1958-1 1095 Riverside Joshua Tree National Monument; Main highway approximately 10 miles from White Tank Campground. Comment
  CAS-BOT-BC150672  Diplacus longiflorus Steve Boyd 1986-4-22 1749 Riverside Temescal Canyon: just south of Interstate 15 Comment
  RSA0018425  Diplacus longiflorus var. calycinus Carl B. Wolf 1931-5-11 1960 Riverside Near Pipe Creek, above Hemet Valley. 1677 Comment
  UCR116682  Distichlis spicata A. C. Sanders, Chet McGaugh 2001-7-26 24474 Riverside Perris-Aguanga Basin region, Mockingbird Creek, beside Harley John Rd. just above Mockingbird Canyon Rd., Woodcrest area, Riverside 427 Comment
  UCR22060  Distichlis spicata var. stricta Steve Boyd 1980-5-13 263 Riverside Gavilan Hills, Harford Springs County Park, at NW corner of the Gavilan Plateau 640 Comment
  JOTR32607  Ditaxis lanceolata La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-10-13 2671 Riverside Joshua Tree National Park. eastern edge of Cottonwood Mountains, near mouth of Cottonwood Canyon; east of Rte. 11, aprpox. 2.5 miles north of park boundary 711 Comment
  RSA421609  Ditaxis lanceolata H. S. Budd 1893-4-10 s.n. Riverside Palm Springs Comment
  UCR75052  Ditaxis lanceolata A. C. Sanders, E. J. Lawlor 1992-4-4 12108 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  UCSB39057  Ditaxis lanceolata Jorgensen, Jan 1982-3-21 Riverside Corn Spring Oasis, Chuckwalla Mountains 600 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
  UCR139721  Ditaxis neomexicana B. G. Pitzer 1989-4-16 1293 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, just outside impact area, 1 km south of Tabaseca Tank 700 Comment
  RSA782274  Ditaxis serrata R. W. Spjut 2007-10-12 16153 Riverside Sonoran Desert. BLM: Corn Spring Road, frontage road to I-10, 23 miles W of Blythe 150 Comment
  RSA793607  Ditaxis serrata var. californica Duncan S. Bell, Aaron Sedgwick 2012-9-13 4206 A 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
  RSA0112085  Dithyrea californica Duncan S. Bell 2010-2-21 554 Riverside Arica Mountains; within the Palen/McCoy Wilderness area; collecting in large drainage on western section of range. 452 Comment
  RSA660045  Dithyrea californica Carol Zuck 1981-2-15 19 Riverside 1.3 miles south on Bob Hope Dr. from the junction at Country Club Dr. Comment
  SEINET10481685  Dithyrea californica David B. Dunn 1948-3-14 Dunn 3774 Riverside Found in flat open sands near hidden springs ranch 5 mi s of the indio hills in the colorado desert. Comment
  POM193556  Dodecahema leptoceras C. C. Parry, J. Lemmon 1876-1 367 Riverside Whitewater. Comment
  UCR50581  Dodecatheon clevelandii B. G. Pitzer, E. Misquez 1988-2-28 0623 Riverside Santa Ana Mtns, Walker Basin, southwest of Murrieta, Avenida Del Oro, 2 mi south of Rancho California Road 428 Comment
  SEINET4568276 Image available Draba crassifolia Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4592 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  POM12937  Draba saxosa P. A. Munz 1922-6-28 5870 Riverside Toro Peak, Santa Rosa Mountains 2529 Comment
  RSA530891  Draba saxosa Albert J. Perkins 1917-7-19 s.n. Riverside Summit San Jacinto Pk. 3293 Comment
  SD217157  Dryopteris arguta Steve Boyd, Tim Ross & Orlando Mistretta 1992-2-2 6642 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
  UCR25369  Dryopteris arguta John C. Roos 1952-4-13 5519 Riverside Peninsular Range, Box Springs Mountains 520 Comment
  UC1931137  Dudleya abramsii subsp. abramsii Scott D. White, Justin Wood 2008-6-17 12192 Riverside San Jacinto Mountains: Morris Ranch Road - open area west of Goff Flat. (Palm View Peak). Comment
  UC1015134  Dudleya lanceolata Reid Moran 1946-5-25 2057 Riverside s side Box Springs Mtn 548 Comment
  CAS-BOT-BC109604  Dudleya saxosa subsp. aloides Reid Moran 1941-5-3 834 Riverside Whitewater, near Banning. 300 Comment
  RSA397785  Dudleya saxosa subsp. aloides Jeannette B. Edge 1934-3-30 s.n. Riverside Whitewater. Comment
  RSA397790  Dudleya saxosa subsp. aloides A. C. Life 1925-4-10 s.n. Riverside Desert beyond Banning Comment
  RSA747756  Dudleya saxosa subsp. aloides Scott D. White, Justin M. Wood 2009-4-28 12607 Riverside Little San Bernardino Mountains: City of Desert Hot Springs, Proposed development N of Pierson Blvd and E of Verbena Dr. Comment
  RSA776823  Dudleya saxosa subsp. aloides Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-5-16 1252 Riverside Haugen Lehmann off I-10, Pacific Crest Trail (PCT) in canyon directly W. of Whitewater. Comment
  RSA791724  Dudleya saxosa subsp. aloides R. F. Thorne 1995-3-29 63016 Riverside White Water Canyon. 600 Comment
  SD45430  Dudleya saxosa subsp. aloides Reid Moran 1950-4-28 3407 Riverside Whitewater 455 Comment
  UC1979820  Dudleya saxosa subsp. aloides Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-5-16 1252 Riverside Transverse Ranges; San Bernardino Mountains region: Haugen Lehmann off I-10, Pacific Crest Trail (PCT) in canyon directly W. of Whitewater. Comment
  CLARK-A1045-107  Dyssodia porophylloides George K. Helmkamp 1977-3-20 Riverside Deep Canyon area above Deep canyon; Palm Desert 15'Q Comment
  RSA0125621  Echinocereus engelmannii var. engelmannii G. Ross Robertson s.n. Riverside Palm Springs, Colorado Desert. Comment
  UCR2342  Echinochloa crus-galli F. M. Reed 1936-7-27 9801 Riverside Riverside, Riverside: Bell lot, Massachusetts Ave. 290 Comment
  UCR59234  Echinochloa crus-galli Jeri Hirshberg 1989-7-20 s.n. Riverside Diamond Valley, south of Newport Road, near Searl Ranch. Comment
  SEINET270227 Image available Ehrharta erecta A. C. Sanders, O. F. Clarke 1996-2-17 17952 Riverside Residence of O.F. Clarke 1012 Spruce Street 305 Comment
  RSA0013567  Eleocharis bella Steve Boyd, Gary D. Wallace 2005-7-30 11646 Riverside San Jacinto Mountains State Park, Hidden Lake area, northeast of Hidden Divide, southeast of Long Valley, near head of Hidden Fork of Tahquitz Creek 2652 Comment
  SD260146  Eleocharis geniculata Mitch Provance 2012-8-1 712 4 Riverside Colorado Desert: Thousand Palms Canyon Road, A+-2/3 of the way up into the canyon. (Myoma 7.5'Q) 139 Comment
  UCR272460  Eleocharis geniculata Mitch Provance 2012-8-1 712- 04 Riverside Colorado Desert, Thousand Palms Canyon Road, +- 2/3 of the way up into the canyon. 140 Comment
  UCR222300  Eleocharis macrostachya R. F. Thorne, E. W. Lathrop, Steve Beckstrom-Sternberg, B. Martin 1982-1 55212 Riverside Peninsular Ranges; Santa Ana Mountains, SW of Murrieta, Santa Rosa Plateau, Mesa de la Punta near south edge of plateau, approached by De Luz Rd. 579 Comment
  RSA500196  Eleocharis montevidensis Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3548 Riverside Vail Lake area, pond and freshwater marsh in Kolb Crk. just south of the lake. Comment
  RSA289841  Eleocharis parishii B. A. Prigge 1980-9-17 4073 Riverside Coachella Valley Stormwater Channel: E of Munroe St., Indio. -3 Comment
  JOTR31140  Elymus elymoides subsp. elymoides La Doux, Tasha 2009-6-3 1851 Riverside Joshua Tree National Park. (Stop 2): Little San Bernardino Mountains, Covington Flats Area, Covington Spring 1396 Comment
  OBI32773  Elymus glaucus E. W. Lathrop 1965-4-26 5689 Riverside 4 mi SE of Murrieta Comment
  UCR95716  Elymus glaucus subsp. jepsonii D. L. Banks 1996-5-2 0943 Riverside Agua Tibia Mountains, NW Palomar Mountains; NW foothills of Dorland Mtn, S end of Los Caballos Road, University of California-Emerson Oaks Reserve, at the Emerson Cottage 524 Comment
  UCR193906  Elymus hispidus A. C. Sanders, Mitch Provance 2008-7-11 35746 Riverside Peninsular Range; San Jacinto Mtns., 3/4 mi. NE of Mountain Center, c. 1/4 mile NE of Keenwild Fire Station, near road to helipad 1494 Comment
  SD232144  Elymus trachycaulus Scott D. White, Justin M. Wood 2008-6-19 12273 Riverside San Jacinto mountains, Meadows at Baldy mountain 483 Comment
  UCR2102  Elymus trachycaulus F. M. Reed 1908-7-14 2471 Riverside San Jacinto Mtns., canyon on road to Strawberry Valley [Old Control Rd. from Oak Cliff, vicinity of Halfway Spring] 1220 Comment
  RSA699663  Emmenanthe penduliflora Keith E. Hoffmaster 1935-3-31 s.n. Riverside Palm Springs Comment
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Aug 27 2011
  UCR116828  Emmenanthe penduliflora A. C. Sanders, Mitch Provance, T. B. Salvato 2001-4-6 23929 Riverside Western Colorado Desert, Coachella Valley, Desert Hot Springs, north of intersection of Pierson Blvd. and Atlantic, north of flood control ditch 348 Comment
  UCR174107  Emmenanthe penduliflora A. C. Sanders 2006-5-19 32424 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 518 Comment
  UCR900  Emmenanthe penduliflora Grace Sprague 1968-5-3 s.n. Riverside San Jacinto Mountains, Banning-Idyllwild Road 5.6 mi below Twin Pines turn-off 854 Comment
  POM97137  Emmenanthe penduliflora P. A. Munz 1925-5-20 9834 Riverside 2 miles W of Dripping Spring. 427 Comment
  SD187347  Encelia actoni Scott D. White 2004-9-16 10751 Riverside San Jacinto Mountain foothills: Along Poppet Creek northeast of San Jacinto River. 561 Comment
  CAS-BOT-BC131341  Encelia farinosa C. L. Hitchcock; C. V. Muhlick 1964-3-17 23077 Riverside 8 miles s.e. of Corona, along road to Elsinore Comment
  CAS-BOT-BC293733  Encelia farinosa Mona Bourell 1987-4-14 3274 Riverside BLM California Conservation Area, Hwy 195, spur off of Box Canyon. Near Mecca 150 Comment
  JEPS23539  Encelia farinosa Peter H. Raven 1958-2-15 11585 Riverside along U. S. Highway 60 (8.7 mi e of road to Wiley Wells) Comment
  UCD131210  Encelia farinosa F. R. Lawson 1929-12-12 XII- 2 Riverside Mecca. Comment
  POM41497  Encelia farinosa var. farinosa Marcus E. Jones 1924-2-7 s.n. Riverside Salton Sea near Oasis. Comment
  RSA556487  Encelia farinosa var. farinosa Julie Greene 1993-3-13 1051 Riverside West of Poleline Rd. 457 Comment
  CAS-BOT-BC81534  Ephedra californica LeRoy Abrams 1903-4-6 3204 Riverside Palm Springs Comment
  POM259670  Ephedra californica Philip A. Munz 1940-2-22 15657 Riverside Rocky gully, Whitewater Canyon, 2 miles north of Banning-Indio boulevard. Comment
  RSA773191  Ephedra californica Orlando Mistretta, Duncan Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4894 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
  SD229016  Ephedra californica Dick Schwenkmeyer 2012-10-16 853 Riverside Approx. 2 mi. south of U.S. Highway 10 at Cabazon. 505 Comment
  SD229018  Ephedra californica Dick Schwenkmeyer 2012-11-6 858 Riverside Palm Canyon, Ague Caliente Indian Reservation, 2.6 mi. south of the intersection of South Palm Canyon Drive and East Palm Canyon Drive, Palm Springs. 178 Comment
  HSC88285  Ephedra trifurca Elizabeth Neese 1979-4-11 7108 Riverside 3 mi. S of Rue, 40 mi. NW of Blythe Comment
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Jul 8 2010
  UCR75536  Epilobium campestre A. C. Sanders 1993-5-12 14010 Riverside San Jacinto Valley, Hemet, SW corner of intersection of Florida Ave (Hwy 74) & Warren Rd., between new San Diego Aqueduct and Warren Road 460 Comment
  UCR178007  Epilobium canum T. B. Salvato, Tracy Tennant 1998-7-18 MOR- 621 Riverside San Bernardino Mtns., Morongo Indian Reservation, vicinity of Wood and Potrero Canyons 1280 Comment
  RSA38400  Epilobium canum subsp. latifolium P. A. Munz 1946-10-20 11583 Riverside Cottonwood Springs; Joshua Tree National Monument. 1098 Comment
  RSA512  Epilobium canum subsp. latifolium J. T. Howell 1927-8-2 572 Riverside Road to Hemet, Mt. San Jacinto. 1372 Comment
  UCR145965  Epilobium canum subsp. latifolium June Latting 1977-11-6 s.n. Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Oasis de Los Osos, Snow Creek 488 Comment
  RSA588370  Epilobium ciliatum subsp. ciliatum N. C. Cooper 1949-6-29 4319 Riverside Hemet Lake, San Jacinto Mountains. 1524 Comment
  POM48407  Epilobium ciliatum subsp. glandulosum P. A. Munz, I. M. Johnston 1924-7-28 8811 Riverside Pine Flats 1738 Comment
  POM6841  Epipactis gigantea Philip A. Munz, L. T. Street 1919-5-7 2735 Riverside Tahquitz Canyon, San Jacinto Mountains 244 Comment
  SBBG89536  Equisetum telmateia subsp. braunii J. Adams 1966-4-28 744 Riverside Santa Rosa Plateau, dirt rd from Murrieta to De Luz 762 Comment
  UCR158283  Eragrostis cilianensis Scott D. White, Michael A. Patten 1992-6-10 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, Interstate Hwy 10/Cook Street interchange near Palm Desert 55 Comment
  JEPS68602  Eremalche exilis W. L. Jepson 1927-4-11 11629 Riverside Whitewater n.w. Colorado Desert, Whitewater 457 Comment
  RSA21763  Eremalche exilis Carl B. Wolf 1937-4-6 8435 Riverside Coachella Valley, 3 miles N of Indio. 0 Comment
  UC634844  Eremalche exilis Margaret Stason 1927-2-12 Riverside 1000 Palm Canyon Colorado Desert, 1000 Palm Canyon Comment
  CLARK-A1528-3224  Eremalche rotundifolia John C. Roos 1966-3-20 Riverside Chuckwalla Mountains Comment
  RSA432712  Eremalche rotundifolia Christopher Davidson 1979-4-4 7721 Riverside Orocopia Mountains, E of Box Canyon on Box Canyon Rd., 15.1 miles E of Mecca. Dirt road to the SE. 579 Comment
  RSA432719  Eremalche rotundifolia E. C. Jaeger 1922-4-2 s.n. Riverside Box Canon near Mecca. Comment
  SBBG99225  Eremalche rotundifolia W. L. Halvorson 1977-3-8 77 -79 Riverside 1 mi S of S entrance to Joshua Tree Nat Monument 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
  CHSC8312  Eremothera boothii subsp. alyssoides Edward L. Smith 1958-3-21 375 Riverside Plant found 6 mi. of Rice, near Priests Well. Little Santa Maria Mtns. 365 Comment
  SBBG87906  Eremothera refracta A. C. Sanders, B. Pitzer, D. Charlton 1986-3-2 6059 Riverside Chuckwalla Bench, S side of the Chuckwalla Mtns, on the Bradshaw Rd ca. 2 mi E of the gasline rd 640 Comment
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Jun 1 2011
  UCD170707  Eremothera refracta LeRoy Gross 2005-2-17 1409 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region: Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of campground. 548 Comment
  SEINET3995113  Eremothera refracta H. M. Hall 1905-4-21 5840 Riverside Near Salton Comment
  RSA0108908  Eriastrum densifolium subsp. austromontanum Peter Guiden, C. Martinez, Naomi Fraga, Lucinda McDade, et al. 2010-8-14 84 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  LA106820  Eriastrum densifolium subsp. densifolium A. M. Johnson; 1933-6-25 sn Riverside Pinon Flats, Pines to Palms Hwy Comment
  UCR126200  Eriastrum densifolium subsp. densifolium Mark S. Brunell 1993-7-16 138 Riverside San Jacinto Mtns., Hwy 371, 4.5 km south of Hwy 74, south side of road, in sandy bottom of Hamilton Wash 1268 Comment
  SD28074  Eriastrum eremicum subsp. eremicum Carl B. Wolf 1932-5-25 3678 Riverside North base of San Jacinto Mountains; Snow Creek Canyon, 1.0 mile below fish hatchery. 395 Comment
  UC971781  Eriastrum eremicum subsp. eremicum H. K. Wagnon 1944-5-30 411 Riverside Corner of Indian Ave and Ramon Road, Palm Springs. 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
  RSA0120085  Eriastrum eremicum subsp. eremicum Robert Gustafson 1982-5-19 2570 Riverside Pines to Palms Hwy (Hwy. 74), vicinity of Pinyon Flat campground. Comment
  UCD118281  Eriastrum filifolium K. Esau 1935-6-15 s.n. Riverside Riverside. Comment
  GMDRC7547  Eriastrum harwoodii J. M. Andre 2015-4-23 32754 Riverside Rice Valley: along Rice-Midland Rd, 3.1 mi. south of Hwy 62, eastern end of Arica Mountains 253 Comment
  UCR133326  Eriastrum sapphirinum 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
  RSA0122011  Eriastrum sapphirinum subsp. dasyanthum Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3533 Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  RSA0122014  Eriastrum sapphirinum subsp. dasyanthum F. M. Reed 1926-5-8 5309 Riverside Rocky hills south of Perris on Elsinore Road. Comment
  UCR149852  Ericameria cooperi Scott D. White, Michael Honer 2004-4-6 10047 Riverside Perris/Elsinore Basins, Temescal Valley: just N of the I-15 freeway and east of Indian Truck Trail, S and west of Lee Lake 396 Comment
  JEPS19154  Ericameria cooperi var. cooperi Marjorie D. Clary 1932-5-13 1659 Riverside se of 29 Palms (Lost Horse Canyon); Colorado Desert, Lost Horse Canyon 914 Comment
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Jul 6 2010
  RSA773195  Ericameria cuneata var. spathulata Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4886 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
  RSA23701  Ericameria linearifolia R. S. Woglum 1934-3-18 627 Riverside Snow Creek, Coachella Valley Comment
  SDSU18668  Ericameria linearifolia Michael G. Simpson, Kristen Hasenstab 2008-4-2 2954 Riverside Joshua Tree National Park. Southeastern end of Hidden Valley. 1305 Comment
  UCR84641  Ericameria linearifolia Scott D. White, S. Ogg 1994-4-21 1981 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  SEINET10443476 Image available Ericameria palmeri var. pachylepis Marc A. Baker, Danny Cuellar, Chris Taylor, Paul Roberge, Cecile shohet, and Youssef Atallah 2015-7-3 18380 Riverside 1.8km south of San Timoteo Wash, 15km SE of central San Bernardino, 35m south of the San Bernardino County line 491 Comment
  UCR149939  Ericameria palmeri var. pachylepis Scott D. White, Brian Leatherman 2004-10-7 10771 Riverside Perris Basin, city of Perris, immediately east of the I-215 Freeway, at Watson Road 434 Comment
  CAS-BOT-BC131639  Ericameria parishii var. parishii Edmund C. Jaeger 1923-6-24 s.n. Riverside East slope of San Jacinto Mtn. 2133 Comment
  CAS-BOT-BC293093  Ericameria pinifolia Philip A. Munz 1946-10-19 11564 Riverside Coahuila [Cahuilla] 1097 Comment
  UC219102  Erigeron divergens P. A. Munz, D. Keck 1922-4-13 4924 Riverside Colorado Desert, Chuckawalla Valley 152 Comment
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Jun 11 2012
  RSA90953  Erigeron divergens F. W. Peirson 1921-3-22 2365 Riverside Andreas Canyon, Palm Springs region Comment
  POM49138  Erigeron foliosus Mary F. Spencer 1919-6-25 1269 Riverside San Jacinto Moutains: Idyllwild. 1616 Comment
  UCR256800  Erigeron foliosus T. B. Salvato, Thomas M. Sullivan Jr 2014-4-23 7868 Riverside Gavilan Hills, Southern CA Edison access road east of Lake Street, c. 1 mi north of Hwy 15 and Temescal Canyon 549 Comment
  RSA701741  Erigeron foliosus var. foliosus Steve Boyd, Valerie L. Soza 2004-6-22 11538 Riverside Western flank of the range in Hall Canyon, at the south end of Lake Fulmor, just north of Hwy 243. 1646 Comment
  SBBG53763  Erigeron foliosus var. foliosus S. Boyd 1980-5-11 Riverside Harford Springs County Park, NW corner of the Gavilan Plateau Comment
  UCR39349  Eriochloa acuminata A. C. Sanders 1985-8-24 5946 Riverside Sonoran (Colorado) Desert, lower Coachella Valley near Oasis on the dirt extension of Avenue 76, 0.4 mi east of Hwy 195, along the south side of a large drain flowing toward the Salton Sea -55 Comment
  POM320435  Eriodictyon crassifolium Greg Wright 1971-4-17 13 Riverside Corona Skyline Drive, Cleveland National Forest, SW of Corona. Before ascending the Mtns. Santa Ana Mts. 366 Comment
  UCR228883  Eriodictyon crassifolium A. C. Sanders 2011-4-6 38998 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  UCR277736  Eriodictyon crassifolium Mitch Provance 2012-1-26 112- 08 Riverside Badlands of Western Riverside County, San Timoteo Canyon, El Casco area, powerline access road, 0.4 miles due S of El Casco Substation. 687 Comment
  SDSU13545  Eriodictyon crassifolium var. crassifolium C. Mosse with W. Miller 1972-7-20 Riverside Along road frm Royal Oak before Y in road, where old gate used to be. Comment
  POM12123  Eriodictyon trichocalyx Mary F. Spencer 1921-4-19 1120 Riverside Banning. Comment
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Mar 13 2011
  RSA342547  Eriodictyon trichocalyx Robert F. Thorne, W. A. Tilforth, L. M. Shultz, R. K. Benjamin, J. Hogge 1980-4-16 54099 Riverside San Bernardino Mountains: Flood plain (wash) along Whitewater River, ca. 3.0 miles N of Whitewater Post Office. 591 Comment
  UCR277737  Eriodictyon trichocalyx Mitch Provance 2012-1-26 112- 02 Riverside Badlands of Western Riverside County, San Timoteo Creek, about 3.5 miles west of Beaumont, N side of Hwy. 60 1479 Comment
  UCR237683  Eriodictyon trichocalyx var. trichocalyx Orlando Mistretta, Duncan S. Bell, Janet Beckman, Joy England, K. Kane, et al. 2010-4-12 4757 Riverside San Bernardino Mountains, Whitewater Canyon, along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center, Whitewater Trout Farm, in the vicinity of Bonnie Bell 600 Comment
  JOTR32451  Eriogonum angulosum Herskovits, Tasya 2011-9-28 1 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Keys View; Burn area on gentle rocky slopes 1582 Comment
  RSA160559  Eriogonum apiculatum J. D. Olmsted 1959-10-23 1070 Riverside On Idyllwild Banning road, 2 miles S of turnoff to Poppett Flat. San Jacinto Mts to San Jacinto River. 1280 Comment
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Nov 19 2011
  SBBG61840  Eriogonum apiculatum R. Hoffmann 1929-9-8 Riverside near Tahquitz Pk Comment
  JOTR32455  Eriogonum brachyanthum La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2602 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam loop trail, near trailhead; Sandy wash and open flats among boulder outcrops (Stop 2) 1298 Comment
  JEPS56711  Eriogonum davidsonii Marjorie D. Clary 1932-5-25 1645 Riverside between Indio and Pinyon Well; Little San Bernardino Mts., Berdoo Canyon 609 Comment
  JOTR29270  Eriogonum davidsonii La Doux, Tasha 2005-8-17 1540 Riverside Joshua Tree National Park. Little San Bernardino Mountains, east of Barker Dam; near Wall Street Mill parking lot along trail heading toward Wonderland Wash 1319 Comment
  UCR193746  Eriogonum davidsonii A. C. Sanders, Mitch Provance 2008-7-11 35750 Riverside Peninsular Range; San Jacinto Mtns., 3/4 mi. NE of Mountain Center, c. 1/4 mile NE of Keenwild Fire Station, near road to helipad 1494 Comment
  CHSC8078  Eriogonum deflexum Edward L. Smith 1958-3-22 396 Riverside Located 6 mi. s of Rice, near Priest's Well. Little Santa Maria Mts. 365 Comment
  RSA0108981  Eriogonum deflexum Duncan S. Bell, Amanda Bell 2012-1-29 3079 Riverside Arica Mountains; collecting in the center of the range, approximately 7 air miles southwest of the ghost town of Rice, or 2 air miles west of Priests Well. 438 Comment
  CAS-BOT-BC256124  Eriogonum deflexum var. deflexum Ynez Whilton Winblad 1937-4-22 s.n. Riverside Box Canyon Comment
  RSA393268  Eriogonum deflexum var. deflexum Anstruther Davidson 1926-03 s.n. Riverside Colorado Desert. Comment
  RSA393273  Eriogonum deflexum var. deflexum M. B. Dunkle 1933-3-4 3038 Riverside Painted Canyon, Colorado Desert. 30 Comment
  SD122175  Eriogonum elongatum var. elongatum James C. Dice, J. D. Tenhunen 1987-9-9 722 Riverside Ca. 1.6 km NNW of Royal Oak Ranch, next to road 380 Comment
  CAS-BOT-BC249902  Eriogonum fasciculatum var. flavoviride D. A. Johansen; J. A. Ewan 1932-4-11 7087 Riverside Martinez Canyon, Santa Rosa Mts. 365 Comment
  POM2247  Eriogonum fasciculatum var. foliolosum I. M. Johnston 1918-5-30 s.n. Riverside Temecscal Canyon (near Lee Lake). 335 Comment
  RSA393430  Eriogonum fasciculatum var. foliolosum N. C. Cooper 1944-7-15 1576 Riverside Banning. 701 Comment
  SD1336  Eriogonum fasciculatum var. foliolosum F. Woodstock 1926-3-15 Riverside Palm Springs 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
  UCR93086  Eriogonum fasciculatum var. foliolosum A. C. Sanders, S. Ogg 1994-7-28 15190 Riverside San Bernardino Valley, Colton & Riverside: Santa Ana River from the Riverside Ave. (N. Main St.) bridge downstream almost to Market St. crossing, both sides of San Bernardino Co. line, but mostly RIV 246 Comment
  JOTR31138  Eriogonum fasciculatum var. polifolium La Doux, Tasha 2009-6-3 1850 Riverside Joshua Tree National Park. (Stop 1): Little San Bernardino Mountains, Covington Flats, ridge line south of peak 1547 Comment
  RSA393350  Eriogonum fasciculatum var. polifolium M. B. Dunkle 1933-3-3 3021 Riverside Devils Cactus Garden, Colorado Desert 152 Comment
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Mar 20 2011
  RSA650850  Eriogonum fasciculatum var. polifolium Leo Kroonen 1949-1-2 s.n. Riverside South side north slope Kroonen Canyon, Corona. Comment
  SEINET11937962  Eriogonum fasciculatum var. polifolium M. T. Doutt 1931-1 773 Riverside Chino Canyon, Palm Springs Comment
  UCR202028  Eriogonum gracile Denise Woodard, G. Nuhn 1995-8-21 s.n. Riverside Peninsular Range; Perris-Aguanga Basin, 300 acre parcel at west end of Domenigoni Valley, c. 3 miles south of Winchester on the west side of Winchester Rd. 470 Comment
  POM184174  Eriogonum gracile var. gracile M. French Gilman 1932-11-30 12 Riverside Cabazon. Comment
  RSA191431  Eriogonum gracile var. gracile E. W. Lathrop, Robert F. Thorne 1967-9-26 6647 Riverside 6 miles NW of Murrieta. Comment
  RSA239204  Eriogonum gracile var. gracile James L. Reveal, Caroline G. Reveal 1972-8-6 2844 Riverside Along California Highway 74, 1.5 miles southwest of the summit of Santa Ana Mountains, 9 miles southwest of Elsinore and about 22 miles east-northeast of San Juan Capistrano, near turnoff to McConville Camp. Comment
  RSA703627  Eriogonum gracile var. incultum Scott D. White, Angelia Carey 2004-9-16 10767 Riverside San Jacinto Mountain foothills: San Jacinto River wash and adjacent alluv. benches, near Indian Creek confluence. 503 Comment
  SEINET3289845 Image available Eriogonum gracile var. incultum M. W. Denslow, Firoozeh Navid- Ara; Valeria Soza 2003-7-16 1456 Riverside Peninsular Ranges; San Jacinto Mountains Region: Santa Rosa Mountains, at junction of Road 7S02 and 74, just west of Rarick Spring 1479 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
  RSA772057  Eriogonum inflatum Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4622 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR16537  Eriogonum inflatum K. Stolte 1978-5-25 s.n. Riverside Sonoran (Colorado) Desert, south side Hwy 111, at Windy Point; c. 5 mi. west of Palm Springs, Coachella Valley 300 Comment
  RSA393578  Eriogonum inflatum var. inflatum N. C. Cooper 1949-4-8 3264 Riverside Mecca Pass east of Indio. 610 Comment
  RSA783813  Eriogonum molestum var. davidsonii John Olmsted 1950-6-15 182 Riverside Hurkey Cr. into Hemet Lake and San Jacinto Rd. drainage area: Cedar Crest Rd. 1 mi E of Hurkey Cr. crossing (turn E 4 mi S of Mt. Center) 1372 Comment
  CAS-BOT-BC258079  Eriogonum plumatella Carl B. Wolf 1932-10-11 4283 Riverside Morongo Wash at the San Bernardino County line 731 Comment
  CAS-BOT-BC253013  Eriogonum reniforme Marcus E. Jones 1903-5-10 s.n. Riverside Palm Spring 60 Comment
  PASA1491  Eriogonum reniforme Margaret Stason 1928-3-3 Riverside Hidden Springs, Colorado Desert Comment
  RSA254045  Eriogonum reniforme Noel Holmgren, Patricia K. Holmgren, Ruth E. Kern 1973-3-23 6479 Riverside At south entrance to Joshua Tree National Monument, near I-10, 24 miles east of Indio. 549 Comment
  CAS-BOT-BC263534  Eriogonum thomasii L. R. Abrams 1926-3-26 11015 Riverside Palm Springs Comment
  POM14064  Eriogonum thomasii P. A. Munz, D. D. Keck 1922-4-9 4869 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 457 Comment
  POM259741  Eriogonum thomasii E. C. Jaeger 1939-12-28 s.n. Riverside Burro Canon, 5 miles east of Thousand Palms. 183 Comment
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Apr 3 2011
  RSA799520  Eriogonum thomasii Duncan S. Bell, Kim Clark, Ingrid Crickmore, Bob Ellis, Keir Morse, Gene Ratcliff 2013-4-7 4775 Riverside East side of the Arica Mountains; west side of Rice Valley approximately 5.5 air miles southeast of the ghost town or Rice or approximately 4.75 air miles east of Priests Well. 208 Comment
  SBBG81367  Eriogonum thomasii S. A. Junak 1983-3-23 1635 Riverside E side of Jefferson Rd across from entrance to Cahuilla Lake County Park, S of Indio Comment
  UCR40591  Eriogonum thomasii George K. Helmkamp 1983-4-5 483- 34 Riverside Sonoran (Colorado) Desert, Chuckwalla Mountains, large wash below Chuckwalla Spring, 9 miles SW of Graham Pass Road 489 Comment
  RSA0009607  Eriogonum thomasii Marcus E. Jones 1906-4-26 s.n. Riverside Indio Comment
  RSA0130729  Eriogonum thomasii Glen Rink 2013-3-18 11875 a Riverside About twelve miles west of Blythe, at the site of the proposed Quartzite solar power plant. 105 Comment
  UCR92748  Eriogonum thurberi A. C. Sanders 1994-7-27 15160 Riverside Riverside, Santa Ana River between the San Bernardino Co. line & the Market Street Bridge 246 Comment
  JEPS56822  Eriogonum trichopes W. L. Jepson 1927-4-12 11642 Riverside Painted Canyon Mecca Hills, Painted Canyon 76 Comment
  RSA593382  Eriogonum wrightii var. membranaceum Scott D. White 1996-7-23 4363 Riverside San Jacinto/ Santa Rosa Mountains: Pine Meadow: Along Hwy 74 just SE of Garner Valley and about 2 road miles NW of jct. w/ Hwy 371. 1418 Comment
  SD259056  Eriogonum wrightii var. membranaceum Sarah J. De Groot, Duncan S. Bell 2015-9-21 7581 Riverside Santa Rosa Mountains southsouthwest of Palm Desert. Along Dunn Road between Asbestos Mountain andHaystack Mountain. 1241 Comment
  LA207105  Eriogonum wrightii var. nodosum Harlan Lewis; 1939-10-22 1044 Riverside Santa Rosa Mountains, Palms to Pines Highway 304 Comment
  RSA297402  Eriogonum wrightii var. nodosum Larry E. DeBuhr 1977-5-6 2587 Riverside Whitewater Canyon, ca. 4.5 miles N from I-10. Comment
  SEINET3087092 Image available Eriogonum wrightii var. nodosum P. Leary 1974-11-24 857 Riverside Joshua Tree National Monument: uppermost portions of the eastern most fork of Munsen Canyon 1036 Comment
  UCR281931  Eriogonum wrightii var. nodosum A. C. Sanders, Jim Malusa 2017-9-19 43340 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, canyon 4.65 km SW (211 deg. ) of Tabaseca Tank 744 Comment
  CAS-BOT-BC297335  Eriophyllum confertiflorum Louis C. Wheeler 1931-10-4 217 Riverside Hemet - Idyllwild Rd, San Jacinto Mts 1402 Comment
  CAS-BOT-BC297339  Eriophyllum confertiflorum Ynez Whilton Winblad 1941-5-27 s.n. Riverside San Juan Mts, San Juan Canyon, Highway 74 609 Comment
  CAS-BOT-BC297351  Eriophyllum confertiflorum P. C. Everett 1935-6-18 7185 Riverside Santa Ana Mts, main divide motorway to Santiago Peak, 1 mile from Ortega Highway 731 Comment
  SD37562  Eriophyllum confertiflorum Florence Post 1931-5-1 Riverside Lake Elsinore region. Comment
  UCR265827  Eriophyllum confertiflorum Mitch Provance 2012-5-24 512- 08 B 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
  SDSU13541  Eriophyllum confertiflorum var. confertiflorum W. Miller, C. Mosse 1972-7-5 Riverside Comment
  JEPS5435  Eriophyllum multicaule W. L. Jepson 1928-4-19 12431 Riverside 5 mi n Elsinore Comment
  UC896341  Eriophyllum multicaule C. B. Clokey, I. W. Clokey and B. C. Templeton 1930-4-15 4734 Riverside open slope Gavilan Peak 600 Comment
  UCR174321  Eriophyllum multicaule A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32560 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
  POM308430  Eriophyllum wallacei Henry J. Ramsey, Henry J. Ramsey 1938-4-22 3069 Riverside Santa Rosa Mts. Comment
  RSA171396  Eriophyllum wallacei J. D. Olmsted 1962-5-3 3485 Riverside Along road on N side of Hemet Lake 1280 Comment
  UCR126494  Erodium botrys A. C. Sanders, K. C. Rose, James C. Dice, D. Woodard 1995-3-29 16284 Riverside San Jacinto Mtns/Sonoran (Colorado) Desert, San Gorgonio Pass; alluvial fan at the mouth of Snow Creek, between Hwy 111 and Snow Creek Village 427 Comment
  JEPS61390  Erodium cicutarium W. L. Jepson May 1901 13558 Riverside Thomas Valley San Jacinto Mts. Comment
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Jun 19 2011
  UCR202505  Erodium cicutarium Justin M. Wood 2008-12-2 263 Riverside Southwest Perris Basin, city of Temecula, Murrieta Creek, downstream of First Street Bridge 305 Comment
  UC2029929  Erodium macrophyllum Steve Boyd, Valerie Soza 2001-4-12 10401 Riverside SANTA ANA MOUNTAINS - GAVILAN HILLS REGION: Temescal Canyon, terrace escarpment just south of De Palma Road between Indian Wash and Horsethief Wash Comment
  RSA0108818  Erodium texanum Duncan S. Bell, Amanda Turek 2009-3-30 185 Riverside South end of the Arica Mountains; approximately 1.5 air miles southwest of Priest Well. 365 Comment
  UC217947  Erodium texanum P. A. Munz, D. Keck 1922-4-13 4923 Riverside Hayfield Colorado Desert, Chuckwalla Valley 152 Comment
  UCR62382  Eryngium aristulatum R. Montijo 1990-5-23 s.n. Riverside Mesa de Colorado, S edge of Santa Rosa plataeu 642 Comment
  UC410726  Erysimum capitatum Mrs. E. C. Van Dyke 1928-5-28 Riverside Banning Comment
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Mar 13 2011
  RSA530205  Erysimum capitatum var. capitatum N. C. Cooper 1945-5-24 1621 Riverside Big Oaks Canyon, Banning. 1219 Comment
  SBBG56025  Erysimum capitatum var. capitatum E. West 1972-5-5 22 Riverside 5.6 mi from Banning on the Palms to Pines Hwy 1036 Comment
  RSA0022940  Eschscholzia androuxii Verne Grant, Alva Grant 1951-4-7 15990 Riverside Below Morongo Valley on road to White Water 732 Comment
  CAS-BOT-BC402623  Eschscholzia caespitosa Sears 1978-3-18 925 Riverside 3 mi. E. of Corn Spring, 9 mi SE of Desert Center 365 Comment
  RSA433680  Eschscholzia californica Bonnie C. Templeton 1931-4-23 s.n. Riverside Gavilan Peak. 600 Comment
  RSA433691  Eschscholzia californica Clyde Stratton 1943-7-23 s.n. Riverside Riverside Comment
  RSA433695  Eschscholzia californica D. A. Young 1969-3-21 395 Riverside 11 mile W of Elsinore, along Hwy 71. 244 Comment
  RSA524220  Eschscholzia californica Steve Boyd, Tim S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4014 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  HSC83355  Eschscholzia minutiflora Curtis Clark 1976-4-13 526 Riverside Mecca-Joshua Tree Rd., 7 mi. SW of junction with Hwy. 10 244 Comment
  RSA66747  Eschscholzia minutiflora F. W. Peirson 1921-3-20 4175 Riverside Andreas Canyon near Palm Springs 213 Comment
  SBBG70173  Eschscholzia minutiflora Anstruther Davidson -Apr-1893 Riverside Palm Springs Comment
  RSA0023200  Eschscholzia papastillii Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11272 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
  UCD96486  Eschscholzia papastillii Shannon M. Still; Jennifer R. Still, Charles M. Still 2008-2-14 253 Riverside California. Riverside County: Joshua Tree National Park. 857 Comment
  RSA663850  Eschscholzia parishii C. R. Annable, Lee Barron 1995-3-12 2270 Riverside Mecca Hills, Box Canyon Wash. Hwy 195. Comment
  RSA767449  Eschscholzia parishii Jim Andre, Tasha La Doux 2009-3-10 11234 Riverside Joshua Tree National Park: south end of the Cottonwood Mountains near Pinkham Wash just north of aqueduct just inside National Park boundary, approx. 7 miles west of south entrance into park at Cottonwood. 542 Comment
  RSA0009598  Eschscholzia parishii Marcus E. Jones 1906-4-30 s.n. Riverside Indio. Comment
  RSA0023137  Eschscholzia parishii Anstruther Davidson 1893-04 s.n. Riverside Palm Springs. Comment
  RSA612493  Eucrypta chrysanthemifolia D. L. Banks 1997-2-23 1324 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
  SDSU13329  Eucrypta chrysanthemifolia var. chrysanthemifolia Joseph R. Verfaillie, BIO 531 Taxonomy class (SDSU) 2000-4-1 24 Riverside Along a poorly defined trail east of the north research station. At the Santa Margarita Ecological Research Station (SDSU). 322 Comment
  RSA776091  Eucrypta micrantha Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-23 823 Riverside Chuckwalla Mountains, North side, Alligator ACEC off I-10, south of Desert Center, in hills above 'Granite Mine.' 495 Comment
  RSA591729  Euonymus occidentalis J. C. Roos 1965-7-3 s.n. Riverside Dark Canyon, San jacinto Mtns. Comment
  UC1714338  Euonymus occidentalis var. parishii Eubank Carson Aug. 1921 Riverside San Jacinto Mts., Dark Canyon Comment
  RSA741058  Euphorbia albomarginata Scott D. White, Justin M. Wood 2008-6-5 12065 Riverside San Jacinto Mountains: Quinn Flat Meadow. 1372 Comment
  UCR102844  Euphorbia albomarginata A. C. Sanders 1997-4-3 20169 Riverside Lake Skinner area, N edge of large clay patch adjacent to the E side of the Skinner entrance road, c. 1-2 km NE of Borel Road. 473 Comment
  UCR241564  Euphorbia albomarginata A. C. Sanders 2013-4-16 40798 Riverside Peninsular Range; SE Gavilan Hills, SCE power line west of the San Jacinto River and south of Perris, 3.2 km WSW of the intersection of Goetz & Ethanac roads 439 Comment
  SEINET10389831  Euphorbia micromera A. C. Sanders, Jim Malusa 2015-9-10 41851 Riverside Salt Creek Canyon, along Summit Road c. 1.5 miles above mouth of Red Canyon, edge of Chocolate Mountains Aerial Gunnery Range 433 Comment
  UCR113197  Euphorbia polycarpa A. C. Sanders 1998-3-11 21670 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, north of Diamond Valley, near high water line of reservoir under construction 518 Comment
  UCR41338  Euphorbia polycarpa N. M. Fellows 1985-1-5 61 Riverside San Jacinto Mtns, Oasis de los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the N foot of San Jacinto Mtn., 1 mi west of Snow Creek Village 506 Comment
  UCR178313  Euphorbia serpillifolia T. B. Salvato, Tracy Tennant 1998-7-18 MOR- 613 Riverside San Bernardino Mtns., Morongo Indian Reservation, vicinity of Wood and Potrero Canyons 1280 Comment
  UCR250367  Euphorbia serpillifolia A. C. Sanders 2014-4-25 41073 Riverside Peninsular Range, Temescal Canyon, Richland property between Horsethief Canyon Rd and Hostettler Rd., SW of I-15 392 Comment
  SD143859  Eustoma exaltatum A. C. Sanders, C. L. Sanders, S. White 1994-10-9 15811 Riverside San Bernardino Mountains:Whitewater Canyon, 2 miles below trout farm, above Bonnie Bell, in wet soil near spring 550 Comment
  CDA28512  Fagonia laevis M. S. Wasbauer 1960-3-26 Riverside Shaver s Summit. 0 Comment
  RSA709875  Fagonia laevis Sarah J. De Groot, Leland Lubinsky, Naomi S. Fraga, Lisa Rojas 2005-2-10 4620 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  UC1212089  Fagonia laevis Peter M. Ray 1949-3-6 1328 Riverside near 1000 Palms (Willis Palms); Coachella Valley Comment
  UCD107160  Fagonia laevis C. L. Hitchcock 1966-3-16 24209 Riverside Along Palms to Pines Highway, 4 mi. S. of Palm Desert. 609 Comment
  CDA15517  Festuca arundinacea M. Lahti 1999-5-21 PDR 1238959 Riverside Southern California; Hemet. 0 Comment
  CLARK-A1528-4656  Festuca megalura John C. Roos, Lucille Roos 1950-4-15 4741 Riverside Pigeon Pass 457 Comment
  UCR207376  Festuca myuros O. F. Clarke 2004-2-26 s.n. Riverside Peninsular Range, eastern edge of Riverside; Box Springs Mtns, Two Trees Canyon 412 Comment
  UCR23935  Festuca myuros John C. Roos, L. Roos 1950-4-15 4741 Riverside Peninsular Range, Box Springs Mtns., Pigeon Pass 457 Comment
  JOTR34337  Festuca octoflora Andre, Jim 2012-4-11 20680 Riverside Joshua Tree National Park. N. end of Hexie Mountains, Hidden Tank Picnic Area, approx. 8 mi south of north entrance station, and 1.4 mi SW of paved road (Rte 11) 1076 Comment
  RSA574724  Filago arizonica Steve Boyd 1982-3-28 s.n. Riverside Gavilan Hills region, Temescal Canyon, south slope of Alberhill Mountain just east of extensively mined area. 427 Comment
  RSA613720  Filago californica D. L. Banks 1997-4-5 1693 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. South of Dorland Mountain, just west of the Wilderness Area boundry, along a tributary of the north fork of Pechanga Creek. 518 Comment
  UCR214144  Filago californica A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt, Katie A. Kurtz 2010-4-2 37725 Riverside Peninsular Range, Alberhill, south foot of the Gavilan Hills at Temescal Canyon, c. 0.5 mi NE (34 deg. ) of intersection of Temescal Canyon Rd. and Concordia Ranch Rd. 518 Comment
  UCR37452  Filago californica Steve Boyd 1981-5-15 s.n. Riverside Peninsular Range, Gavilan Hills, confluence of the major drainage off the west slope of Estelle Mountain with Temescal Wash 320 Comment
  POM254733  Filago depressa P. A. Munz 1940-3-23 15688 Riverside north end of Pinto Basin 610 Comment
  SD80099  Forestiera neomexicana Nancy Ryan Zabriskie, Walter Zabriskie 1971-8-20 425 Riverside Canyon off Sta. rosa mt. Rd., 0.6 mile above Highway 74. 1524 Comment
  SBBG69367  Fouquieria splendens M. N. Ackley -Feb-1926 359 Riverside Box Cyn 304 Comment
  RSA586949  Frasera parryi D. L. Banks, Steve D. Boyd 1995-5-30 478 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N Flank of Agua Tibia Mountain, along the Dripping Springs Trail; at first saddle area in section 34, NNE of the two peaks of Agua Tibia Mountain. 963 Comment
  SBBG15860  Fraxinus dipetala P. Kamb 1949-4-30 1405 Riverside Banning-Idyllwild Rd below Barton Lookout 1127 Comment
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May 24 2012
  RSA715054  Fraxinus uhdei A. C. Sanders, T. B. Salvato 2003-5-21 26806 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
  SD255221  Fraxinus velutina Duncan S. Bell, Josh Brito and John Woodruff 2015-7-15 8552 Riverside Santa Rosa Mountains; south of Cactus Spring Trail; in Horsethief Creek. 1064 Comment
  UCR132720  Fraxinus velutina A. C. Sanders, O. F. Clarke 1991-6-10 11132 Riverside Upper Santa Ana River/San Bernardino Valley, Riverside, along Spring Brook between Lake Evans (Fairmont Park) & the Santa Ana River 238 Comment
  UCR91739  Fraxinus velutina A. C. Sanders, J. Goetzen 1996-5-1 18133 Riverside San Bernardino Mtns., Morongo Indian Reservation, along dirt road in Hathaway Creek Canyon, north of Banning 915 Comment
  UCD121391  Funastrum cynanchoides var. cynanchoides T. B. Salvato; Kent Beaman 2005-5-16 791 Riverside San Jacinto Mtn foothills: San Jacinto River E of Valle Vista, just downstream from the Forest Service boundary and N of CA Hwy 74. 549 Comment
  RSA583206  Funastrum cynanchoides var. hartwegii R. E. Riefner 1995-9-6 95 -350 Riverside El Cerrito, near Temescal Canyon Road, Climbing onn willows near Temescal Wash. 366 Comment
  UCD121395  Funastrum cynanchoides var. hartwegii Nancy Ryan Zabriskie; Walter Zabriskie 1970-3-27 272 Riverside Below Andreas Canyon Club clubhouse; Andreas Canyon. 304 Comment
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Jun 20 2013
  SD229054  Funastrum heterophyllum Dick Schwenkmeyer, Tony Harper - Collector 2013-5-8 896 Riverside Agua Bonita Spring, Palm Canyon, approx. 8 Mi. S. of Catherdral City 883 Comment
  RSA667023  Galium Scott D. White, David E. Bramlet 1999-5-19 7369 Riverside Lake Skinner Area: Ridgetop, north-, west-, and northwest facing slopes of Bachelor Mtn. 549 Comment
  RSA740938  Galium andrewsii subsp. andrewsii Scott D. White, Justin M. Wood 2008-7-9 12440 Riverside K Flat, from large pond downstream to meadow. 1427 Comment
  SDSU9312  Galium angustifolium Bruhns 1965-5-23 129 Riverside At 2000' sign along state Hwy 74, below Idyllwild. 610 Comment
  UCR174537  Galium angustifolium Jennifer H. Jones, Janine Amaya and Thi (Teresa) Bui 2006-5-21 309 Riverside Peninsular Ranges: Box Springs Mtns., Box Springs Mountain Reserve. First trail on the left beyond the parking lot along the service road 793 Comment
  UCR201998  Galium angustifolium 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
  JEPS56034  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and Clare Hardham 1965-6-18 4135 Riverside on Route R1 s Idyllwild; Keenwild Station Comment
  JEPS56076  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and G. L. Stebbins 1966-1-21 4176 Riverside Hwy 79 3 mi nw Gilman Hot Springs (s of Beaumont, w-facing rocky slope) Comment
  JEPS56081  Galium angustifolium subsp. angustifolium Lauramay T. Dempster and Clare Hardham 1965-6-18 4137 Riverside junction Route 71 and Route 74 San Jacinto Mountains, Paradise Valley (s end of mts) Comment
  RSA783231  Galium aparine J. D. Olmsted 1962-5-2 3454 Riverside Flat by saddle just N of highest part of Box Spring Mountains 762 Comment
  UCD170550  Galium californicum subsp. primum D. O. Burge; J. Gee 2017-5-20 2278 Riverside Pine Cove area, roadside on Red Hill Road. 1720 Comment
  UCR42483  Galium multiflorum P. J. Leary 1975-5-28 1210 Riverside Transverse Range, Little Berdoo triangulation station, 0.5 miles southwest of Bernard Peak, Joshua Tree National Monument 1616 Comment
  RSA78314  Galium parishii Philip A. Munz, E. K. Balls 1952-8-21 17974 Riverside Santa Rosa Spring, Santa Rosa Mts. 2134 Comment
  RSA797241  Galium parishii Robert F. Thorne, Walter Wisura 1977-9-17 50770 Riverside San Jacinto Mountain: Long Valley to Round Valley along trail to summit. 2591 Comment
  RSA776349  Galium stellatum var. eremicum Duncan S. Bell 2010-3-20 619 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  UCD121123  Garrya flavescens Nancy Ryan Zabriskie; Walter Zabriskie 1972-10-22 545 Riverside By Cactus Spring Trail crossing of Horsethief Creek, tributary to Deep Canyon, N slope Santa Rosa Mts. 1097 Comment
  RSA97228  Garrya flavescens var. pallida F. W. Peirson 1921-3-21 4464 Riverside Gordon trail from Andreas Canyon, San Jacinto Mts. 1524 Comment
  CAS-BOT-BC158025  Garrya veatchii H. E. Parks; S. T. Parks 1938-2-17 24087 Riverside in chaparral, Palms to Pines Highway, San Jacinto Mountains 1524 Comment
  CAS-BOT-BC158072  Garrya veatchii S. B. Parish 1918-4-3 11697 Riverside Brush lands, San Jacinto River Comment
  UC484104  Garrya veatchii B. D. Stark 1930-3-18 Riverside Mt. San Jacinto Comment
  SD152991  Gastridium phleoides Steve Boyd 1992-4-23 7063 Riverside San Mateo Canyon Wilderness Area. Along San Mateo Creek from Riverside county line, following San Mateo trail upstream to the confluence with Bluewater Canyon 244 Comment
  UCR39544  Gayophytum diffusum subsp. parviflorum A. C. Sanders 1980-8-21 1781 Riverside San Jacinto Mountains, Mt. San Jacinto Wilderness Area. east of Saddle Junction at the head of Tahquitz Creek, c. 2 mi NE of Idyllwild 2409 Comment
  POM355354  Gayophytum diffusum subsp. parviflorum E. C. Jaeger s.n. Riverside [No location information on label.] Comment
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Nov 6 2011
  POM358674  Geraea canescens N. C. Cooper 1949-3-15 3172 Riverside 5 miles south of Palm Springs. 122 Comment
  RSA278960  Geraea canescens B. A. Prigge, L. Martinez 1978-3-23 2403 Riverside NW Colorado Desert, Coachella Valley, 1.9 miles E of North Palm Springs on Dillon Rd. 243 Comment
  SEINET2051654 Image available Geraea canescens N. Cooper 1949-3-15 3027 Riverside Palm Springs 120 Comment
  SEINET10849118  Geraea canescens David B. Dunn, Shogo; Schroeder; Bruskin; FOLSOM 1948-3-14 Dunn 3750 Riverside Found growing in a wash. Indio Hills, Colorado Desert. Near Pushawalla. Comment
  UC218103  Geranium californicum P. A. Munz 1922-7-6 5985 Riverside Tahquitz Valley San Jacinto Mts. 2194 Comment
  RSA85116  Gilia angelensis J. C. Roos 1952-4-2 5460 Riverside Box Springs Comment
  UC737253  Gilia angelensis Frank W. Gould 1943-4-18 2148 Riverside 1 mi w Banning (in the foothills of the San Jacinto Mountains); San Jacinto Mountains Comment
  UCR19148  Gilia angelensis John C. Roos, L. Roos 1954-4-17 6069 Riverside Pass at summit of Reche Canyon 732 Comment
  RSA543745  Gilia capitata subsp. abrotanifolia Steve Boyd, T. S. Ross, Mike Hammitt 1991-5-2 6049 Riverside Vail Lake region, SW & W flanks of Billy Goat Mountain, 3 miles N Hwy 79, 1 mile W of Hwy 371, N of Aguanga. 600 Comment
  SEINET14643582  Gilia diegensis H. M. Hall 2913 Riverside Vicinity of Winchester. 457 Comment
  UCR169918  Gilia latifolia Scott D. White, Jennifer H. Jones 2005-4-21 10941 Riverside Sonoran Desert, Eastern Coachella Valley. Bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  SD38842  Gilia ochroleuca subsp. exilis Edith A. Purer 1935-4-21 6441 Riverside Pine Valley, Pines to Palms Highway. Comment
  SD225059  Gilia stellata G. K. Helmkamp 1998-4-4 3130 Riverside Southern Mojave Desert: junction of CA hwy 62 (Twentynine Palms hwy) & CA hwy 177 (Desert Center - Rice Rd). 474 Comment
  UCR60709  Gilia stellata R. F. Thorne, M. Z. Thorne 1973-3-30 42592 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
  RSA508001  Githopsis diffusa Steve Boyd, C. Boyd, K. A. Boyd, R. Noyes, L. Arnseth 1988-5-28 2307 Riverside Cahuilla Mountain, west of Anza, mostly along the crest. 1500 Comment
  CAS-BOT-BC435006  Glinus lotoides Scott D. White 1995-9-22 3688 Riverside San Jacinto Valley. Marsh AFB, W of Plummer Rd. and S of Cactus Rd., +-0.7 mi W of 215 Fwy. 457 Comment
  UCR145075  Glinus lotoides A. C. Sanders, Kerry Knudsen, T. B. Salvato 2004-5-18 27909 Riverside Peninsular Range, Alberhill Mountain, SE of old clay mining area 448 Comment
  UCR208049  Glinus radiatus R. E. Riefner Jr. 2003-9-26 03- 379 Riverside Wildomar, approx. 1 mile east of I-15 along Clinton Keith Rd. in vicinity of Smith Ranch Rd. 427 Comment
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Nov 12 2019
  CLARK-A1528-1847  Gnaphalium bicolor John C. Roos 1952-2-29 5374 Riverside Reche Canyon 548 Comment
  RSA659556  Gnaphalium californicum P. Shirokawa 1998-5-15 34 Riverside Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  SEINET959511 Image available Gnaphalium canescens subsp. beneolens R. E. Riefner Jr. 2006-1 06 -432 Riverside Peninsular Range: Temecula, Temecula Valley, Hwy 79 at Old Town Front Rd. (Temecula 7.5 Q) 305 Comment
  UCR128563  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Mitch Provance 2001-4-5 23912 Riverside Perris-Aguanga Basin region, Long Canyon, Temecula, between gas pipeline route and 'windmill,' south of BM 1221 366 Comment
  UCR65274  Gnaphalium canescens subsp. microcephalum Steve Boyd, O. Mistretta 1989-7-18 3765 Riverside Peninsular Range, Vail Lake Area, Temecula Creek Canyon 0.5 mi west of dam 421 Comment
  RSA559364  Gnaphalium chilense Steve Boyd, Tim Ross, D. E. Bramlet 1993-5-13 7379 b Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Wildhorse Canyon, from confluence with Los Alamos Canyon upstream approx. 1 mile 412 Comment
  UCR84377  Gnaphalium leucocephalum Steve Boyd 1994-10-14 8385 Riverside Santa Ana Mtns., San Mateo Canyon Widerness Area of the Cleveland Nat'l Forest. San Mateo Canyon at the confluence with Bluewater Canyon 335 Comment
  UCR84613  Gnaphalium luteoalbum Scott D. White, S. Ogg 1994-4-21 1999 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  JOTR32335  Grayia spinosa La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-5-9 2456 Riverside Joshua Tree National Park. West of Queen Mountain, southern end of Wonderland of Rocks; Wonderland Wash, north of Mill Street Mine parking area. Active wash corridor with sandy bottom and surrounded by granitic outcrops and pediments; with heavy foot traffic (Stop 1) 1297 Comment
  RSA162744  Guillenia lasiophylla John Olmsted 1958-3-29 69 Riverside Transiton zone with NE drainage towards the Pinto Basin. Near intersection of Cottonwood Pass and Cottonwood Spring roads, 8 miles N of Souther entrance to Joshua Tree National Monument. 915 Comment
  RSA777829  Guillenia lasiophylla Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-24 855 Riverside Chuckwalla Mountains, Chuckwalla Mountains Wilderness, off Corn Spring Road, main wash adjacent Corn Spring Road, draining from Corn and Aztec Springs up on Chuckwalla, flowing NNE 396 Comment
  UCR89724  Guillenia lasiophylla J. M. Stewart 1991-4-1 766 Riverside Sonoran (Colorado) Desert, Big Maria Mtns, Slaughter Tree Wash, c. 5 mi. from Hwy 95 Comment
  CLARK-A1528-225  Gutierrezia bracteata John C. Roos 1951-9-23 5238 Riverside Reche Canyon Comment
  UC63369  Gutierrezia californica E. A. Zumbro 1902-10-1 360 Riverside Riverside Comment
  UCR140709  Gutierrezia californica A. C. Sanders 2004-5-11 27845 Riverside Elsinore Basin Region, Alberhill Mountain, ridgetop overlooking Walker Canyon and I-15 Fwy 488 Comment
  UCR250366  Gutierrezia californica A. C. Sanders 2014-4-25 41072 Riverside Peninsular Range, Temescal Canyon, Richland property between Horsethief Canyon Rd and Hostettler Rd., SW of I-15 392 Comment
  POM256727  Gutierrezia sarothrae W. Pequegnat 1940-7-1 s.n. Riverside Bedford Truck Trail, Santa Ana Mts. 427 Comment
  SEINET2052364 Image available Gutierrezia serotina D. Gordon 1952-2-27 Riverside University of California, Riverside campus 396 Comment
  CLARK-A1045-314  Habenaria sparsiflora George K. Helmkamp 1979-4-27 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  SEINET7883455 Image available Haplopappus acradenius subsp. eremophilus Lewis S. Rose 1945-1 s.n. Riverside Palm Springs 137 Comment
  SEINET6428806 Image available Haplopappus linearifolius Norman C. Cooper 1944-5-20 1230 Riverside Pine Flats, Palms to Pines Hwy. 1219 Comment
  UCR217554  Harpagonella palmeri Diane Menuz 2008-4-4 390 Riverside Peninsular Range, Palomar Mountains. And 0.5 mi down Woodchuck Rd. from national forest boundary 719 Comment
  RSA0094790  Hedypnois cretica Duncan S. Bell, Andrew Chambers, Jacob B. Landis, Evan Meyer, Billy Sale 2015-4-2 7935 A Riverside San Gorgonio Pass area, between Cabazon and Whitewater, about a 1/2 mile south of Interstate 10, just to the east of a section of the wind farm. 416 Comment
  UCR176082  Hedypnois cretica Teresa Nieto 2005-4-14 02 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
  RSA291591  Helianthemum scoparium var. vulgare C. W. Tilforth, W. Wisura 1979-11-4 1765 Riverside East end of Murrieta-DeLuz Rd., ca. 2 air mi. south of Murrieta 335 Comment
  UCR133327  Helianthus gracilentus 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
  UCR1412  Helianthus gracilentus Frank C. Vasek 1958-5-9 580509- 06 Riverside San Bernardino Valley Region, Reche Canyon 549 Comment
  CLARK-A1528-1912  Helianthus niveus subsp. canescens John C. Roos 1962-4-3 Riverside Palm Springs Municipal Airport 121 Comment
  RSA388419  Heliotropium curassavicum var. oculatum R. F. Thorne 1985-7-18 61193 Riverside Santa Rosa Plateau, Nature Conservancy Reserve: along Cole Canyon. 535 Comment
  POM360280  Hemizonia fasciculata Christopher Davidson 1977-5-25 5657 Riverside Mesa de Burro Santa Rosa Plateau area of Santa Ana Mountains. 701 Comment
  UCR125228  Hemizonia fasciculata Mitch Provance, Twoc Tran 1998-5-30 561 Riverside Jurupa Mountains, N end of 'Wilder's Canyon' (E fork of Pyrite Canyon), c. 0.25 miles SE of peak 1538. 351 Comment
  UCR180106  Hemizonia fasciculata Mitch Provance 2003-4-26 9892 Riverside Santa Ana River Valley, northern extreme of the La Sierra Hills, on the N-facing slopes and ridges just south of Crestlawn Memorial Cemetery 427 Comment
  RSA717681  Hemizonia kelloggii A. C. Sanders 2004-5-5 27786 Riverside Gavilan Hills; route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, ca. 0.25 mi. NNW of Harford Spring, ca. 1.2 mi. NE of Gavilan Peak 579 Comment
  UCR117087  Hemizonia kelloggii A. C. Sanders, T. B. Salvato 2001-5-16 24299 Riverside Perris-Aguanga Basin, S of Hemet, 1/4 mi. south of Gibbel Rd. about 1 mile east of State St., foothills forming east end of Diamond Valley, 1 mi. SSE of Hemet Butte, south of mouth of Avery Cyn. 518 Comment
  UCR177319  Hemizonia kelloggii Scott D. White, Michael Honer 2003-5-27 9403 Riverside Gavilan Hills / Temescal Canyon, hills and canyons c. 1 mile north of the I-15 Fwy and 1 mi east of Lake Street exit, south and/or west of unnamed peak '2349 549 Comment
  UCR132838  Hemizonia mohavensis A. C. Sanders, Steve Boyd, Jeff Ross, , Mitch Provance 1998-10-25 22275 Riverside San Jacinto Mtns., along entrance road to McCall Memorial Park, c. 0.5 mi. west of Mountain Center 1355 Comment
  UCR193747  Hemizonia mohavensis A. C. Sanders, Mitch Provance 2008-7-11 35751 Riverside Peninsular Range; San Jacinto Mtns., 3/4 mi. NE of Mountain Center, c. 1/4 mile NE of Keenwild Fire Station, near road to helipad 1494 Comment
  UCR139192  Hemizonia paniculata Virginia Moran 2003-5-16 s.n. Riverside Johnson Ranch (managed by Center for Natural Lands Management), vicinity of Skunk Hollow and Santa Gertrudis Creek, 'knoll 1' on northern edge of first baseline transects established by CNLM 422 Comment
  UCR172211  Hemizonia paniculata John F. Green 2006-5-3 s.n. Riverside Peninsular Ranges, French Valley, unincorporated Riverside County, along Briggs Road between Porth Road and Los Alamos Road 402 Comment
  UCR172215  Hemizonia paniculata John F. Green 2006-5-3 s.n. Riverside Peninsular Ranges, French Valley, unincorporated Riverside County; along San Diego Aqueduct right of way between Benton Road and the obvious drainage to the south 412 Comment
  UCR238748  Hemizonia pungens subsp. laevis Jeremiah George 2012-7-9 s.n. Riverside San Timoteo Canyon, west side of San Timoteo Canyon Rd., NE corner of Fisherman's Retreat Lake 597 Comment
  CAS-BOT-BC434234  Hesperoyucca whipplei Tracy Tennant; Jeffrey Ross 1998-4-30 MOR- 41 Riverside San Bernardino Mtns. Foothills: Morongo Indian Reservation, upper Hathaway Canyon. 884 Comment
  SEINET5641181  Hesperoyucca whipplei var. whipplei Wendy C. Hodgson, Andrew Salywon, Liz Slauson, Brandi Eide 2013-6-14 28528 Riverside Santa Rosa Mountains, off of highway 74 south of Palm Desert, off of Pine View Drive. 1297 Comment
  POM46855  Heterocodon rariflorum Charlotte M. Wilder 1903-07 s.n. Riverside Strawberry Valley, San Jacinto Mountains. Comment
  UCR193962  Heterocodon rariflorum A. C. Sanders 2008-7-25 35891 Riverside Peninsular Range; San Jacinto Mtns., May Valley, along nameless tributary of Herkey Creek NW of Bonita Vista Rd., 3/4 mi. SW of Fleming Ranch 1524 Comment
  UCR174536  Heterotheca grandiflora Jennifer H. Jones, Sarah Huels and Heather Schneider 2006-5-16 302 Riverside Peninsular Ranges, Box Springs Mtns. Trail along base of Mtns. N from Big Springs Road to the same latitude as Blaine Street. 384 Comment
  UC63207  Heterotheca sessiliflora subsp. echioides H. M. Hall Aug 1 1901-Aug 10 1901 2607 Riverside Strawberry Valley; San Jacinto Mountains 1615 Comment
  CAS-BOT-BC203347  Hibiscus denudatus H. M. Hall 1905-4-17 5782 Riverside 10 miles west of Coachella 121 Comment
  SEINET11993718  Hibiscus denudatus W. Knight, Knight, I. 1983-1 5404 Riverside Eagle Mts 244 Comment
  SEINET4585072  Hilaria rigida E. Neese 1979-4-10 7077 Riverside About 25 miles west of Blythe, along I-10 244 Comment
  JOTR37050  Hoffmannseggia glauca Hodges, Stephen R. 2015-8-20 605 Riverside Joshua Tree National Park. Pleasant Valley, near roadside in ephemeral wet muddy area Comment
  RSA0105850  Hoffmannseggia glauca Alan Romspert 2001-4-13 s.n. Riverside Ford Dry Lakes, off ramp N. of I-10. 482 Comment
  CAS-BOT-BC206105  Hoffmannseggia microphylla John Thomas Howell 1827-1-28 3292 Riverside Painted Canyon [Canon], Colorado Desert Comment
  RSA679165  Holodiscus microphyllus Fred M. Roberts 2003-6-25 5934 Riverside Santiago Peak, NE slope off old road near jct. with Main Divide Truck Trail, 4.3km by road N bear Springs, 0.4km N summit. 1633 Comment
  SBBG103942  Hordeum depressum A. C. Sanders 1993-5-12 14016 Riverside Hemet, W side of Warren Rd, 0.5 mi S of Florida Ave (St Hwy 74) Comment
  UCR121812  Hordeum depressum A. C. Sanders, Carolyn Washburn 2001-4-17 24063 Riverside San Jacinto Valley, southwest edge of Hemet, NW of intersection of Stowe Rd. and California Av., 2 miles NE of Winchester 457 Comment
  SEINET13262567 Image available Hordeum intercedens D. E. Bramlet 2001-1 3137 Riverside San Jacinto Wildlife Area, east of Davis Rd. at the San Jacinto River 434 Comment
  RSA0042653  Hordeum marinum subsp. gussoneanum Scott D. White, Marty Jacobsmeyer 1996-4-20 3972 Riverside Perris area: Near Perris Airport; ca. 100 m N of Case Rd. and 100 m W of San Jacinto River Channel. 429 Comment
  RSA601079  Hordeum marinum subsp. gussoneanum A. C. Sanders, S. Hawkins, J. Goetzen, D. Freeman 1996-5-1 18120 Riverside Morongo Indian Reservation, SE edge of Burro Flats., T2S R1E S14, SE.4; 33 deg 59.5'N, 116 deg 51'W 1100 Comment
  UCR91913  Hordeum marinum subsp. gussoneanum A. C. Sanders, S. Hawkins, J. Goetzen, D. Freeman 1996-5-1 18120 Riverside San Bernardino Mtns, Morongo Indian Reservation, natural pond & bog at SE edge of Burro Flats 1100 Comment
  UC1605424  Hordeum murinum subsp. murinum Steve Boyd 1986-4-2 1619 Riverside Gavilan Plateau, Gavilan Hills: Harford Springs County Park. Steele Park 7.5' Quad. Comment
  UCR4670  Horkelia clevelandii Frank C. Vasek 1964-7-19 640719- 04 Riverside Peninsular Range; San Jacinto Mtns., Pine Cove Comment
  LA207994  Horkelia clevelandii var. clevelandii Carl Epling; William Robison 1935-6-30 sn Riverside Mt. San Jacinto, between Pine Flat Camp and Fuller's Mill Comment
  SBBG68137  Hosackia oblongifolia var. oblongifolia R. Hoffmann 1929-9-7 Riverside San Jacinto Mtns Comment
  RSA769765  Hulsea vestita subsp. callicarpha Duncan S. Bell, Valentin Arvizu 2010-5-10 987 Riverside San Bernardino National Forest: Garner Valley, approximately 1.1 air mile southeast of junction of forest service road 6S13 and forest service road 6S04. 1349 Comment
  UCR34975  Hulsea vestita subsp. callicarpha L. B. Ziegler 1967-5-31 142 Riverside San Jacinto Mtns, Hemet Valley 1402 Comment
  UC1400356  Hydrocotyle ranunculoides R. F. Thorne and E. Lathrop 1969-6-6 39347 Riverside Santa Rosa Plateau, Rancho California 609 Comment
  POM147594  Hymenoclea salsola Marcus E. Jones 1927-4-16 s.n. Riverside Cottonwood Spring, near Shaver's Well, Colorado Desert Comment
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Oct 9 2010
  POM361079  Hymenoclea salsola P. J. Remple 1942-3-1 s.n. Riverside Near Palm Springs. Comment
  RSA0106699  Hymenoclea salsola Duncan S. Bell, Thomas Stoughton 2010-3-19 568 Riverside Central section of the Arica Mountains; within the Palen/McCoy Wilderness area; approximately 2.25 air miles west of Priest Well. 439 Comment
  RSA0009845  Hymenoclea salsola Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 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
  JOTR28945  Hymenoclea salsola var. salsola La Doux, Tasha 2005-3-30 1181 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  JOTR32364  Hymenopappus filifolius var. lugens La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2011-6-1 2479 Riverside Joshua Tree National Park. Little San Bernardino Mountains: North side of Quail Mountain; Loamy, gravelly slope in saddle below the summit (Stop 4) Comment
  CAS-BOT-BC219733  Hyptis emoryi Walter Knight; Irja Knight; Fred Klein 1968-11-17 2586 Riverside 2.8 mi. n. of junction of Bradshaw Stage Road and Imperial Gas Line Road. Access from Indio-Blythe highway via Red Cloud Road Comment
  JOTR29560  Hyptis emoryi Andre, Jim, Tasha LaDoux 2006-4-11 6734 Riverside Joshua Tree National Park. Along Pinto Basin Rd (paved) in Wilson Canyon 857 Comment
  SEINET7907884  Hyptis emoryi D. A. Johnson 2005-1 2005- 02 -20-16 Riverside Between Coachella & S entrance to Joshua Tree Nat'l Park, S of Interstate 10 914 Comment
  SFV21859  Hyptis emoryi J. R. Pucci 2001-4-7 9 Riverside San Jacinto Mountains Chino Canyon. Along abandoned road off north side of Tramway Road, 2 miles west of Highway 111. 425 Comment
  UC65007  Hyptis emoryi E. E. Schellenger 25 Riverside Chucawalla Wells; Colorado Desert, Chucawalla Wells Comment
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Jan 23 2012
  POM9331  Hyptis emoryi Mary F. Spencer 1918-4-5 832 Riverside [Palm?] Canyon. Comment
  RSA125962  Isocoma acradenia var. eremophila E. K. Balls, P. C. Everett 1957-11-5 22756 Riverside Just S. of Thermal, State Hwy. 111 30 Comment
  RSA155458  Isocoma acradenia var. eremophila L. S. Rose 1961-11-23 61062 Riverside La Quinta. 15 Comment
  UC1523414  Isocoma acradenia var. eremophila Robert F. Thorne, Dick Tilforth, L. Shultz, R. K. Benjamin & J. Hogge 1980-4-16 54104 Riverside ca 3 mi n Whitewater P.O. (floor plain (wash) along Whitewater River); San Bernardino Mts., Whitewater River 591 Comment
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Apr 25 2011
  CDA33830  Isocoma menziesii var. menziesii Mike Lahti 2010-9-2 PDR# 1358814 Riverside Murrieta; Nieblas Rd, 3 miles southeast of Hwy 74. 0 Comment
  RSA655226  Isocoma menziesii var. menziesii Scott D. White 1999-10-7 7623 Riverside Menifee / Sun City Area: South of McColl Ave. and east of I-215 freeway. 442 Comment
  CAS-BOT-BC69943  Isoetes howellii Robert F. Thorne; Earl Lathrop 1969-5-12 37930 Riverside Santa Rosa Plateau: large vernal marsh on s. end of Mesa de Colorado, Rancho California. 624 Comment
  RSA545385  Isoetes howellii Robert F. Thorne 1975-5-20 45542 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro 610 Comment
  CAS-BOT-BC426243  Jepsonia parryi Samuel B. Parish 1896-4-2 4081 Riverside Palm Springs (Agua Caliente) Comment
  SD237480  Juglans hindsii A. C. Sanders, R. E. Riefner Jr. 2009-8-11 37145 Riverside Peninsular Range: Box Springs Mtns. Foothills, Riverside, dry arroyo on UCR campus SE of student health center and just north of North Campus Drive (Riverside East 7.5'Q) 320 Comment
  CAS-BOT-BC110073  Juncus acutus Marcus E. Jones 1906-4-27 s.n. Riverside Indio. Comment
  POM1559  Juncus acutus subsp. leopoldii I. M. Johnston 1917-4-4 s.n. Riverside Colorado Desert. Palm Canyon. 244 Comment
  JEPS63812  Juncus balticus S. B. Parish 1913-2-7 8455 Riverside near Mecca; Salton Basin -60 Comment
  RSA567472  Juncus balticus subsp. ater Scott D. White 1993-5-29 1484 Riverside San Bernardino Mountains: Banning Canyon and Big Oaks Canyon along the road to Raywood Flat, Yucaipa Ridge. 1220 Comment
  RSA369167  Juncus bufonius Robert Gustafson, Gary D. Wallace 1983-6-23 2726 Riverside Mesa de Burro, Santa Rosa region, Santa Ana Mountains. 701 Comment
  UCR201821  Juncus bufonius Karin Cleary-Rose, G. Nuhn 1995-7-20 s.n. Riverside Peninsular Range; Perris-Aguanga Basin, west edge of Hemet, 19 acre parcel on the Wilhelm Ranch, between Hwy 74 and Whittier Ave, at south end of Hyatt Ave., west of the San Diego Aqueduct 457 Comment
  RSA586303  Juncus bufonius var. bufonius Darin L. Banks, Steve Boyd 1995-5-3 214 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  UCR157357  Juncus bufonius var. congestus Chris E. True, Robert Cox 2005-6-22 s.n. Riverside San Jacinto Mtns., north slope of the mountains near Azalea Creek, about 0.5 mile SW of the Twin Pines Ranch buildings 1067 Comment
  SEINET6059809  Juncus effusus Scott D. White 1998-7-31 6957 Riverside Idyllwild Area. Strawberry Creek between crossing at Circle Drive and Humber Park. Comment
  SBBG57286  Juncus macrandrus R. Hoffmann 1929-9-7 Riverside San Jacinto Mtns 1828 Comment
  SBBG57287  Juncus macrandrus R. Hoffmann 1929-9-6 Riverside Tahquitz Valley 2438 Comment
  RSA500197  Juncus mexicanus Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3547 Riverside Vail Lake area, pond and freshwater marsh in Kolb Crk. just south of the lake. Comment
  UC70341  Juncus oxymeris H. M. Hall 1901-7-23 2543 Riverside n side tributary of Snow Creek; San Jacinto Mountains 1767 Comment
  UCR193528  Juncus oxymeris A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35564 Riverside Peninsular Range; San Jacinto Mtns., May Valley c. 1.25 mi SW of Fleming Ranch, slope below May Valley Rd. toward meadow on nameless tributary NW of Herkey Crk., north of Bonita Vista Rd. 1555 Comment
  UCR24952  Juncus oxymeris A. C. Sanders 1980-7-18 1669 Riverside San Jacinto Mtns, Thomas Mountain; along a small dry creek in Spillway Canyon about 2 mi SW of Hwy 74 along Thomas Mountain Road 1463 Comment
  POM14394  Juncus phaeocephalus var. paniculatus Phillip A. Munz 1922-7-6 5999 Riverside Tahquitz Valley, San Jacinto Mountains. 2195 Comment
  RSA368337  Juncus rugulosus L. C. Wheeler 1932-9-4 1331 Riverside Santa Ana River at Chino Creek 183 Comment
  CAS-BOT-BC123242  Juncus tiehmii Barbara J. Ertter; Jeffrey L. Strachan 1979-6-26 2971 Riverside San Bernardino National Forest, San Jacinto Mountains 762 Comment
  UCR39205  Juncus xiphioides M. Roskey, F. Boyen 1985-5-28 524 Riverside Transverse Range, Big Morongo Preserve of The Nature Conservancy. south of Morongo Valley, main canyon - 2 mi downstream, where the old gate stood. 640 Comment
  UCR60608  Juncus xiphioides Steve Boyd, T. S. Ross, L. Arnseth 1989-6-10 3690 Riverside Peninsular Range, Vail Lake area, benches of Arroyo Seco and slopes of hills to the east 488 Comment
  UCR97258  Juniperus californica Scott D. White 1997-2-9 4676 Riverside Peninsular Range, Elsinore Basin; Temescal Valley: SW of Hwy I-15 between Indian Truck Trail and Lake Street exits, c. 0.5 mi east of Glen Eden 460 Comment
  CAS-BOT-BC234566  Justicia californica E. A. Blondin 1944-4-8 s.n. Riverside Tahquitz Canyon Comment
  CAS-BOT-BC234580  Justicia californica J. H. Thomas 1949-2-28 59 Riverside Southern part of Palm Springs Comment
  OBI20392  Justicia californica Robert F. Hoover 10163 Riverside Dead Indian Canyon Comment
  RSA402301  Justicia californica Charles C. Herbst 1964-3-20 s.n. Riverside Palm Springs. Comment
  RSA402305  Justicia californica Christopher Davidson, Josephine Jones 1980-4-4 9952 Riverside Orocopia Mts. West end of the mountains in a small canyon and wash almost due south of Oro Peak. 518 Comment
  SEINET2163601 Image available Justicia californica Philip A. Munz 1940-3-24 15692 Riverside 3 miles south of Cottonwood Springs, Eagle Mountains 460 Comment
  UCD121633  Justicia californica Anne Harrison 1962-4-17 29 Riverside Santa Rosa Mountains, State Highway 74. Mountainside overlooking Deep Canyon to the east and Palm Desert to the north. 457 Comment
  JOTR35019  Kallstroemia californica La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3117 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road, near Mission Well Comment
  CLARK-A1528-854  Keckiella antirrhinoides Robin Maetche, Geoffrey Matthews, Jim Hearne 1971-5-15 Riverside Elsinore Comment
  RSA717685  Keckiella antirrhinoides A. C. Sanders 2004-5-5 27764 Riverside Gavilan Hills; route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, ca. 0.25 mi. NNW of Harford Spring, ca. 1.2 mi. NE of Gavilan Peak. 579 Comment
  SEINET13768160  Keckiella antirrhinoides A. C. Sanders, G. Helmkamp 1997-3-15 19952 Riverside Lake Skinner area: hill (1864) east of Skinner Lake at NW end of Tucalota Hills 518 Comment
  RSA496453  Keckiella antirrhinoides subsp. antirrhinoides Steve D. Boyd, Tim S. Ross, L. Arnseth 1989-3-31 3067 Riverside Vail Lake area, S of Hwy 79, 0.25 mi E of Pauba Rd. 427 Comment
  UCR116980  Keckiella antirrhinoides var. antirrhinoides A. C. Sanders, T. B. Salvato 2001-5-3 24083 Riverside Perris-Aguanga Basin region, Hemet, SE corner of State Street at Gibbel, 1712 ft. hill at east end of Diamond Valley 518 Comment
  NY786709  Keckiella antirrhinoides var. antirrhinoides C. C. Parry 1876-1 301 Riverside Comment
  JEPS13633  Keckiella ternata Peter Kamb 1948-7-4 1184 Riverside below Barton Lookout (Banning-Idyllwild road); San Jacinto Mts. 1158 Comment
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May 24 2012
  RSA507963  Koeleria macrantha Steve Boyd, C. Boyd, K. Boyd, R. Noyes, L. Arnseth 1988-5-28 2281 Riverside Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest. 1500 Comment
  LA205733  Krameria bicolor A. W. Haupt; April 1926 sn Riverside Palm Springs Comment
  RSA0023271  Krameria bicolor Robert F. Thorne 1966-10-15 41782 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway. Comment
  CAS-BOT-BC43713  Krameria erecta Lewis S. Rose 1937-4-10 37174 Riverside Indio - Blythe Road, 26 mi. E. of Indio 457 Comment
  UC1329992  Krameria erecta James E. Cole 1941-5-21 760 Riverside Cottonwood Road Dale (Joshua Tree National Monument); , Dale 914 Comment
  UCR25150  Krameria grayi John C. Roos 1965-6-23 s.n. Riverside Sonoran (Colorado) Desert, Eagle Mtns., Lost Palms Canyon, north of Chiriaco Summit Comment
  SD178133  Laennecia coulteri A. C. Sanders 2004-5-11 27844 Riverside Elsinore Basin Region: Alberhill Mountain, former clay mine area ca. 1 mile southeast of Alberhill. Margins of muddy pool in old clay pit. Around high water line of pool and in upper parts of dried bed. 438 Comment
  UCR99856  Lamium amplexicaule Scott D. White 1993-3-3 1101 Riverside Perris Basin, Romoland/Winchester area 442 Comment
  CLARK-A1528-4433  Larrea tridentata John C. Roos 1948-5-8 3817 Riverside Whitewater Canyon 548 Comment
  JEPS23490  Larrea tridentata W. L. Jepson 1914-5-22 6046 Riverside Thousand Palms Canyon; Colorado Desert Comment
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Apr 3 2011
  JOTR28941  Larrea tridentata La Doux, Tasha 2005-3-30 1177 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  POM259712  Larrea tridentata Philip A. Munz 1940-3-23 15665 Riverside South base of Pinto Mountains, road Dale to Cottonwood Springs. 610 Comment
  RSA33309  Larrea tridentata N. C. Cooper 1943-10-3 942 Riverside Whitewater Canyon. Riverbank 762 Comment
  RSA390020  Larrea tridentata N. C. Cooper 1949-4-8 3272 Riverside Mecca Pass east of Indio 549 Comment
  RSA652039  Larrea tridentata Bill Trimble 1949-2-20 s.n. Riverside Found in Whitewater Canyon in the Colorado Desert 10 miles off highway 99. 457 Comment
  RSA681035  Larrea tridentata Scott D. White, Michael Honer 2003-5-14 9269 Riverside Bajada at foothills of Little Maria Mtns, ca. 20 air miles NW of Blythe, near Standard (Superior) Gypsum Mine. 76 Comment
  UCR124632  Larrea tridentata B. C. Templeton, I. W. Clokey 1930-4-9 1076 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  CAS-BOT-BC338912  Lasthenia californica Scott D. White; Julie Greene 1997-3-12 4774 Riverside Perris Basin, W Riverside Co. Sun City: Near I-215 Freeway, S of Perris and N of Menifee. Low hills E of Bavaria Dr. 490 Comment
  CAS-BOT-BC338921  Lasthenia californica H. M. Hall 1902-4-22 2941 Riverside Rialto. Vicinity of Riverside Comment
  SEINET7073293  Lasthenia californica A. G. Vestal 1963-4-27 s.n. Riverside Cottonwood Canyon Road southeast of Lake Elsinore. Coordinate datum: NAD27. Comment
  CAS-BOT-BC353285  Lasthenia coronaria H. M. Hall 1903-4-1 3787 Riverside Vicinity of Riverside 396 Comment
  RSA614656  Lasthenia coronaria A. C. Sanders 1997-3-1 19710 Riverside Box Springs Mtns: Coyote Hill (Bench Mark 'Versity', 1386ft) and ridge S and SE of the UCR Botanic Garden 427 Comment
  UCR172198  Lasthenia coronaria John F. Green 2006-5-2 s.n. Riverside Peninsular Ranges, French Valley: Leon Road (San Diego Aqueduct right of way) from Borel Road/Tucalota Creek S for c. 0.25 mi 427 Comment
  RSA0008494  Lasthenia glabrata subsp. coulteri F. W. Peirson 1922-4-29 2956 Riverside South of Lake Elsinore. 381 Comment
  RSA1440  Lasthenia gracilis J. T. Howell 1929-2-14 1229 Riverside 3 miles S of Glen Ivy. Comment
  RSA356712  Lasthenia gracilis R. F. Thorne 1975-5-20 45512 Riverside Santa Rosa Plateau: Rancho California, Mesa de Burro; Santa Ana Mountains 610 Comment
  SD239602  Lasthenia gracilis A. C. Sanders, T. B. Salvato 2011-4-1 38934 Riverside Peninsular Range: Lake Elsinore area, near Alberhill, Baker Street, SW side at dirt road crossing, c. 270 ft SE of intersection with Pierce Street (Lake Elsinore 7.5'Q) 384 Comment
  UCR116908  Lasthenia gracilis A. C. Sanders, Mitch Provance, T. B. Salvato 2001-4-6 23965 Riverside Perris-Aguanga Basin region, Temecula, Long Canyon area west of Del Rey Rd., hills on both sides of gas pipeline route 390 Comment
  UCR140303  Lasthenia gracilis A. C. Sanders 2004-4-9 27461 Riverside San Jacinto Valley, Tres Cerritos, c. 3 miles WNW of Hemet, east of the Lakeview Mtns., in central valley among the three peaks 518 Comment
  UCR154770  Lasthenia gracilis A. C. Sanders, Mike Misenhelter 2005-3-23 29246 Riverside Santa Ana Mtns., Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  UCR851  Lasthenia gracilis Osman 1976-4-26 S-76- 2 Riverside Peninsular Range, Woodcrest, 4 - 5 mi west of Hwy 395 Fwy [now I-215], along Van Buren Blvd. and near March Air Force Base 274 Comment
  UC1929464  Lathyrus vestitus Scott D. White, Michael Honer 2003-6-3 9471 Riverside Santa Ana Mountains: Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. Comment
  UCR6013  Lathyrus vestitus K. T. Seng 1966-4-13 660413- 11 Riverside Santa Ana Mtns, NE slope of Santa Ana Mountain, end of Main Street, 4 mi. from downtown Corona 457 Comment
  CAS-BOT-BC320799  Layia glandulosa H. M. Hall 1904-5-16 4948 Riverside Vicinity of Riverside. Fairmount Park 243 Comment
  UCR165607  Layia glandulosa T. B. Salvato, John F. Green 2004-5-27 705 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
  UCR93581  Layia glandulosa J. Hogan 1974-5-6 36 Riverside Mojave Desert, Joshua Tree National Monument (Park), Eureka Peak. NW edge of Covington Flat. (= VABM Eureka, 5516 ft.) 1677 Comment
  CLARK-A1528-1984  Layia platyglossa John C. Roos 1952-4-13 5525 Riverside Box Springs Mountains 487 Comment
  UCR174162  Layia platyglossa A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32638 Riverside Peninsular Range, Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd., vicinity of peak 2279 695 Comment
  UCSB19172  Layia platyglossa Chepin, Matt 1965-5-16 Riverside Hemet Meadow, State Highway 74, 4.7 miles from junction with State Highway 71 1341 Comment
  RSA29237  Layia platyglossa subsp. campestris Joseph A. Ewan 1933-5-3 10781 Riverside Hard adobe of old fallow field borders Paloma Valley, 7 miles NE Murrietta. Comment
  RSA660550  Layia platyglossa subsp. campestris Bruce Albert 1982-4-17 9 Riverside Cajalco Road, 0.7 miles east of I-15; south of Corona. Comment
  UCR92069  Lepidium latifolium Scott D. White, S. Ogg 1994-10-17 2479 Riverside City of Temecula, Murrieta Creek channel directly west of Las Haciendas/Del Rio intersection. 314 Comment
  CAS-BOT-BC89852  Lepidium nitidum Robert F. Thorne; Earl W. Lathrop 1969-5-12 37947 Riverside Santa Rosa Plateau. Mesa de Colorado, Rancho California. 624 Comment
  UCR135814  Lepidium nitidum A. C. Sanders, Guy Bruyea 2004-4-2 27445 Riverside Peninsular Range, Temescal Canyon, 'Serrano Highlands' project, between Glen Ivy Hot Springs and Arcilla, NE side of the I-15 Fwy, south of Clay Canyon Rd. 335 Comment
  RSA429923  Lepidium nitidum var. nitidum Christopher Davidson 1973-4-1 1816 Riverside Jct. Vail Lake Marina and Hwy. 71/79, about 3 miles west of Aguanga. 426 Comment
  POM157884  Lepidium virginicum var. pubescens P. A. Munz 1927-5-20 10796 Riverside Murrieta Hot Springs. Comment
  POM48496  Lepidium virginicum var. pubescens Mary F. Spencer 1919-6-18 1327 Riverside San Jacinto Mtns. Comment
  RSA715299  Lepidium virginicum var. robinsonii A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32656 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd., vicinity of peak 2279. 579 Comment
  UCR113196  Lepidium virginicum var. robinsonii A. C. Sanders 1998-3-11 21671 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, north of Diamond Valley, near high water line of reservoir under construction 518 Comment
  UCR258873  Lepidium virginicum var. robinsonii T. B. Salvato, Matthew Malle, Thomas M. Sullivan Jr 2014-4-22 7909 Riverside Peninsular Range, southeastern Gavilan Hills north of Alberhill, dirt extension of Lake Street, c. 0.6 mi north of Hwy 15 and Temescal Canyon 476 Comment
  UCR281258  Lepidium virginicum var. robinsonii Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-3-27 317- 62 Riverside Temescal Valley, North side of Concordia Ranch Rd., slopes just east of Black Powder Rd. 393 Comment
  RSA289819  Lepidospartum squamatum B. A. Prigge 1980-9-16 4037 Riverside Coachella Valley Stormwater Channel; east of Point Happy at Washington St. x channel 21 Comment
  RSA771792  Lepidospartum squamatum Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4609 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR136318  Lepidospartum squamatum Virginia Moran 2003-9-1 s.n. Riverside Peninsular Range, Wilson Valley Mitigation Bank (Center for Natural Lands Management), east of Sage Road and south of Wilson Valley Road 675 Comment
  UCR59468  Leptochloa fascicularis Jeri Hirshberg 1989-7-12 s.n. Riverside Lake Perris: shoreline at east end of lake. 488 Comment
  RSA289845  Leptochloa fusca subsp. uninervia B. A. Prigge 1980-9-17 4063 Riverside Coachella Valley Stormwater Channel: E of Munroe St., Indio., Near 33 deg 44'N; 116 deg 14'W. -3 Comment
  UCR202442  Leptochloa uninervia Denise Woodard, G. Nuhn 1995-8-21 s.n. Riverside Peninsular Range; Perris-Aguanga Basin, 300 acre parcel at west end of Domenigoni Valley, c. 3 miles south of Winchester on the west side of Winchester Rd. 470 Comment
  UCR241237  Leptodactylon californicum Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 06 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, lower Hathaway Canyon along Hathaway Canyon Rd. 826 Comment
  UCR4084  Leptodactylon californicum subsp. leptotrichomum Carole Sims 1965-3-28 s.n. Riverside Santa Ana Mtns., Cleveland National Forest, San Juan Canyon along road between Lion and Bear Canyons 762 Comment
  CAS-BOT-BC227028  Leptosiphon floribundus subsp. floribundus Carl B. Wolf 1936-6-17 7951 Riverside Santa Ana Mts., along Ortega Highway, San Juan Canyon, 5/10 mi. E. of Orange Co. Line 365 Comment
  RSA73057  Leptosiphon lemmonii F. W. Peirson 1938-5-30 12414 Riverside Thomas Mountain, Hemet Valley. 1402 Comment
  POM145371  Leptosiphon pygmaeus subsp. pygmaeus P. A. Munz 1927-5-20 10808 Riverside 10 miles S. of Hemet. Comment
  SEINET8483157 Image available Leptosyne californica W. V. Apton 1969-4-20 171 Riverside Rte 71, 15 mi S of Corona 229 Comment
  UCR23837  Lessingia filaginifolia John C. Roos 1965-8-19 s.n. Riverside San Bernardino/San Jacinto Mtns, Beaumont Comment
  RSA692225  Lessingia glandulifera var. glandulifera Scott D. White 2003-10-9 9822 Riverside Pine Cove area. Dutch Flat. 1753 Comment
  SD28107  Lessingia glandulifera var. glandulifera Carl B. Wolf 1932-8-4 3925 Riverside San Jacinto Mountains; Strawberry Valley; 1.5 miles from Idyllwild on road to Banning. 1705 Comment
  RSA561877  Leymus condensatus Steve Boyd, Timothy S. Ross 1992-6-10 7632 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon about 'Potrero Escondido',, an isolated area of low relief topping the ridge system due west of the junction on Tenaja Road (7S01) and Los Alamos Road (7S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek 671 Comment
  RSA703626  Leymus condensatus Scott D. White, Angelia Carey 2004-9-16 10749 Riverside Along Poppet Creek NE of San Jacinto River. Along open sandy dry wash and adjacent roadside. 561 Comment
  CAS-BOT-BC274534  Leymus triticoides H. M. Hall 1901-6-1 2122 Riverside San Jacinto Mountins. Eastern base, along the borders of the Colorado Desert Comment
  RSA334994  Leymus triticoides Steve Boyd 1985-7-23 1006 Riverside De Luz Rd., 5.5 miles west of Rancho California. 396 Comment
  UCR241482  Lilium humboldtii Tracy Tennant, Jeffrey Ross 1998-5-21 MOR- 235 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Hathaway Creek Canyon, NW of Cabazon 976 Comment
  CAS-BOT-BC45841  Limnanthes gracilis var. parishii A. C. Sanders; Tim Thomas 2008-6-20 35537 Riverside Peninsular Range; San Jacinto Mtns.: May Valley near Fleming Ranch, north of Bonita Vista R. and east of Herkey Creek 1550 Comment
  CAS-BOT-BC248277  Limonium duriusculum A. C. Sanders; John F. Green 2012-6-25 40298 Riverside Peninsular Range; Santa Ana Mts. Region: Temescal Canyon, benches south of I-15 and east of Horsethief Canyon Rd., north end of Bucking Bay Dr. 433 Comment
  RSA180406  Linanthus androsaceus subsp. luteolus E. W. Lathrop 1965-5-9 5735 Riverside 6 miles W of Murrieta. Comment
  POM364579  Linanthus dianthiflorus subsp. dianthiflorus E. Crow 1929-4-7 H.- 8284 Riverside Santa Ana Mountains, Corona Skyline Drive. Comment
  UC23558  Linanthus floribundus subsp. glaber A. J. McClatchie Apr 1892 37 Riverside near Elsinore Comment
  UCR16665  Linanthus jonesii Robert A. Clark 1966-3-5 030566- 6 B Riverside Sonoran (Colorado) Desert, 8 miles east of Mecca on State Hwy 195 and about 3 miles up Box Canyon 15 Comment
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Sep 7 2011
  UCR22120  Linanthus lemmonii Steve Boyd 1980-4-13 126 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  SBBG87907  Linaria maroccana B. Pitzer 1986-2-22 17 Riverside Whitewater Cyn, at Fish Hatchery Comment
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Jan 14 2010
  UCR80801  Linum lewisii var. lewisii Scott D. White 1993-5-29 1472 Riverside San Bernardino Mtns, Big Oaks Canyon, along the road to Raywood Flat,Yucaipa Ridge 2134 Comment
  UCR178006  Lithophragma Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 077 Riverside San Bernardino Mtns., Morongo Indian Reservation, Hathaway Canyon, tree stand H-05 915 Comment
  UCR240642  Lithophragma Tracy Tennant, Mitch Provance 1998-6-16 MOR- 414 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper Millard Canyon, north of Cabazon 1098 Comment
  RSA291595  Lithophragma affine subsp. mixtum C. W. Tilforth, W. Wisura 1979-4-11 1772 Riverside East end of Murrieta-DeLuz Rd, south of Murrieta. 335 Comment
  RSA0030797  Lithophragma affine subsp. mixtum N. C. Cooper 1944-5-21 1302 Riverside San Jacinto Mountains, west side. 915 Comment
  SD233359  Lithophragma bolanderi Duncan S. Bell, Valentin Arvizu 2010-5-24 1099 Riverside Peninsular Ranges: San Jacinto Mountains region: San Bernardino National Forest: Garner Valley, approx. 2.8 air miles SE of junction of forest service road 6S04 and forest service road 6S13. Along an old road in an open forest with chaparral. 1381 Comment
  JEPS5320  Lobelia cardinalis var. pseudosplendens Marjorie D. Clary 1932-8-7 1683 Riverside Colorado Desert, San Jacinto Mountains, Snow Creek Colorado Desert, San Jacinto Mountains, Snow Creek Comment
  UCR18962  Loeflingia squarrosa John C. Roos 1952-5-14 5664 Riverside Perris-Aguanga Basin, 2 mi NW of Perris Comment
  RSA748289  Loeseliastrum schottii Justin M. Wood 2009-3-26 417 Riverside Thousand Palms, Under Edison powerlines, near intersection of 30th Ave and Via Las Palmas. 61 Comment
  UC1922022  Logfia depressa Robert F. Thorne, M. Z. Thorne 1973-3-30 42686 Riverside MORONGO VALLEY CANYON: Near mouth at junction of roads to Morongo Valley and Desert Hot Springs, on rocky and sandy outwash of Mission Creek. Comment
  SEINET251729 Image available Lolium multiflorum Walter Graves 602 -9 Riverside Grown at U.C. R. in Agricultural Opeations Fields 305 Comment
  UCR22135  Lomatium dasycarpum Steve Boyd 1980-5-22 301 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau. east of the trailer park, E side of Gavilan Rd 625 Comment
  UCR63510  Lomatium lucidum Scott D. White 1990-6-16 s.n. Riverside Santa Ana Mtns, Cleveland National Forest, private land just inside the Forest boundary; E wall of Hagador Canyon, near the mouth of the canyon 400 Comment
  RSA0120234  Lomatium mohavense Duncan S. Bell, Thomas Stoughton 2016-4-14 9284 Riverside Santa Rosa Mountains; near the head of Deep Creek and near the trailhead of the Cactus Spring Trail, at an old mining area above this trail. 1219 Comment
  CLARK-A1528-1445  Lomatium utriculatum John C. Roos 1937-3-24 1341 Riverside Pigeon Pass Comment
  SD7635  Lomatium utriculatum unknown May 1882 Riverside San Jacinto Plain Comment
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Jul 12 2010
  UCR87631  Lonicera interrupta A. C. Sanders 1994-5-30 14585 Riverside San Bernardino Mountains, north-northeast of Beaumont at Highland Springs, hills north of the end of Bellflower Ave., at Dutton St 950 Comment
  RSA680835  Lonicera subspicata var. denudata Scott D. White, Teresa Salvato, Lia DeMarco, Jessica Christian 2001-6-30 8666 Riverside San Jacinto Mountains: Idyllwild area; Strawberry Fuelbreak between Inspiration Point and Strawberry Creek. I.e., southwest terminus of Double View Dr. west to creek. 1402 Comment
  SD248384  Lophocereus schottii Marc A. Baker, Michelle Cloud-Hughes, Tim Thomas and Alice Karl 2013-9-26 17802 Riverside Pilot Mountain 7.5'Q USGS quad. Chuckwalla Mountains, south side of Corn Springs Wash, 600 m ESE of Corn Spring, 12.2km SE of Desert Center, 70km west of Blythe. 480 Comment
  UCR120859  Lotus argophyllus Bern Schwenn 1998-4-11 s.n. Riverside San Bernardino Mountains, Mission Creek, along Pacific Crest Trail and slope on E side of canyon. 823 Comment
  RSA526167  Lotus argophyllus var. argophyllus Steve Boyd, T. S. Ross 1990-5-11 4670 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  UCR18540  Lotus crassifolius A. C. Sanders 1978-6-11 00334 Riverside San Jacinto Mtns., James Reserve, above Lake Fulmor 1646 Comment
  UC454101  Lotus grandiflorus I. J. Condit 1910-6-22 Riverside San Jacinto Mts. 2438 Comment
  UCR9383  Lotus grandiflorus D. H. Wilken 1965-6-29 367 Riverside San Jacinto Mtns, Strawberry Meadows, near Idyllwild 1555 Comment
  RSA406140  Lotus grandiflorus var. grandiflorus N. C. Cooper 1949-6-29 4334 Riverside Idlewild, San Jacinto Mountains. 1524 Comment
  UCR133651  Lotus hamatus Michael D. Wilcox 2003-5-13 s.n. Riverside French Valley, 'Greenway site' along Tucalota Creek c. 1 mile east of Murrieta Hot Springs 427 Comment
  RSA620645  Lotus humistratus A. C. Sanders, G. K. Helmkamp 1997-3-15 20001 Riverside Lake Skinner, SE foot of Bachelor Mtn., just north of the lake. 500 Comment
  UC667261  Lotus humistratus Annie M. Alexander and Louise Kellogg 1941-5-15 2185 Riverside n slope Eagle Mountains; Colorado Desert Comment
  RSA510021  Lotus salsuginosus var. salsuginosus B. Pitzer 1988-3-10 642 Riverside Chuckwalla Mountains. W side of mountains, on gas line road ca. 1.5 mi north of intersection with Red Cloud Mine Road (and wash); ca. 2 miles (airline) S of Highway I-10. (Red Cloud Road. 10 km cell; PH-2N, 3E) 488 Comment
  CSUSB1264  Lotus scoparius Holzmiller 1966-4-9 Riverside Mary Knoll Hills, 50 feet below water tank. 274 Comment
  UCR178523  Lotus scoparius subsp. brevialatus R. G. Swinney 1967-2-12 0025 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Snow Creek 335 Comment
  JEPS55889  Lotus scoparius var. brevialatus Marjorie D. Clary 1932-6-6 1181 Riverside 15 mi s Indio (Dead Indian Creek, near foot of Palms to Pines Road); Colorado Desert, Dead Indian Creek 304 Comment
  RSA776227  Lotus scoparius var. brevialatus Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 877 Riverside Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon 762 Comment
  UC1929589  Lotus scoparius var. brevialatus Steve Boyd 2007-4-20 11725 Riverside Peninsular Ranges; Perris-Aguanga Basin region; Southeastern end of the Gavilan Hills, north of Warm Springs Valley at upper end of ''Walsh Canyon,'' ca. o.5 miles from junction with Lindel (aka Stovepipe) Road, on southwest facing slope just above old Melia azedarach and across from driveway leading t 549 Comment
  UCR275359  Lotus scoparius var. brevialatus T. B. Salvato, Melissa Clemons 2005-6-9 1502 Riverside Peninsular Range, Gavilan Hills, E/W trending side canyon feeding into Walker Canyon, c. 0.3 mile northeast of Hwy 15 457 Comment
  PASA1110  Lotus strigosus 1930-1 Riverside Painted Canyon Comment
  RSA522736  Lotus strigosus Steve Boyd, T. S. Ross, L. Arnseth 1990-3-29 3842 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
  UC15698  Lotus strigosus H. M. Hall May 17 1901-Jun 1 1901 1809 Riverside s side San Jacinto Mt. 1615 Comment
  UC80674  Lotus strigosus T. S. Brandegee 1902-5-14 Riverside Whitewater Comment
  UCR214326  Lotus strigosus A. C. Sanders, T. B. Salvato, Matthew Malle, Jonas Winbolt 2010-5-17 38386 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
  UCR250309  Lotus strigosus A. C. Sanders 2014-4-8 40983 Riverside Peninsular Range, Temescal Canyon, along Temescal Canyon Rd. c. 0.5 km NW of El Hermano Rd., c. 0.8 km SE of I-15 crossing 315 Comment
  RSA92460  Lotus strigosus J. C. Roos, L. Roos 1954-5-15 6120 Riverside Summit of Reche Canyon 732 Comment
  RSA508005  Lotus tomentellus Steve Boyd, Carol Boyd, Kyle Boyd, R. Noyes, L. Arnseth 1988-5-28 2303 Riverside Cahuilla Mountain, west of Anza, mostly along the crest. 1500 Comment
  UCR74371  Lotus tomentellus Theo Glenn 1991-5-2 91- 14 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  SEINET7097942  Lotus wrangelianus A. G. Vestal 1937-3-21 s.n. Riverside Near Garnet. UTM Zone 11, 542095 mE, 3751177 mN. Lat. 33 54' 07ao N, Long. -116 32' 41ao NAD 27 (Converted to WGS84 decimal degrees) Comment
  CLARK-A1528-668  Ludwigia peploides Rose Gagnon 1968-5-14 680514-2 Riverside Riverside Comment
  RSA797245  Lupinus Robert F. Thorne, Walter Wisura 1977-9-17 50783 Riverside San Jacinto Mountain: Long Valley to Round Valley along trail to summit. 2591 Comment
  UCR1132  Lupinus albifrons Frank C. Vasek 1958-4-26 580426- 02 Riverside Peninsular Range, Hwy 71, 8.6 mi west of the junction with Hwy 79 [=vicinity of Dripping Springs/Vail Lake, Hwy 79, 8.6 mi west of the junction at Aguanga with Hwy 371] 518 Comment
  CHSC90499  Lupinus arizonicus J. Lund 1980-4-3 52 Riverside 200 ft south of entrance to Joshua Tree National Monument. 944 Comment
  RSA749948  Lupinus arizonicus Justin M. Wood 2009-3-26 415 Riverside Thousand Palms, Under Edison powerlines, near intersection of 30th Ave and Via Las Palmas. 61 Comment
  UCR104025  Lupinus arizonicus George K. Helmkamp, E. A. Helmkamp 1998-2-5 2678 Riverside Little San Bernardino Mtns., 3.2 mi. north of junction of Thousand Palms Canyon Road and Dillon Road. 457 Comment
  UCR166873  Lupinus arizonicus Chet McGaugh 2005-1-27 s.n. Riverside Sonoran (Colorado) Desert, E of Salton Sea, along Coachella Canal between siphons 26-27 NE of Dos Palmas Spring 24 Comment
  UCR200297  Lupinus arizonicus Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11217 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains, western base of the Chocolate Mountains, small canyon c. 1.25 mi due north of Imperial Co. line and c. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range 549 Comment
  UCSB17069  Lupinus arizonicus Otey, D. 1963-5-5 Riverside On Calif. State Highway 74; 10.2 mi. SW of Palm Desert 883 Comment
  SEINET10870659  Lupinus arizonicus David B. Dunn 1946-3-17 Dunn 2098 Riverside On north-facing slopes of ravine coming down from plateau east of springs at Pushawalla Canyon. Indio Hills. Comment
  RSA711767  Lupinus bicolor A. C. Sanders, Kelly Volansky 2005-3-17 29231 Riverside Perris-Aguanga Basin Region: French Valley, SE of Winchester Rd. (Hwy 79) between Thompson Rd. and Benton Rd., ca. 0.5 mi. NE of Adobe Springs, near San Diego Aqueduct. 412 Comment
  SEINET7073451 Image available Lupinus bicolor 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
  RSA594125  Lupinus bicolor subsp. microphyllus D. L. Banks, Victor W. Steinmann 1996-4-20 0894 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; S end of Los Caballos Road, University of California-Emerson Oaks Reserve. 536 Comment
  RSA407119  Lupinus chamissonis Anstruther Davidson 1930-1 s.n. Riverside Colorado Desert. Comment
  SBBG35807  Lupinus concinnus D. Myrick 1966-4-2 1337 Riverside Mtn View Rd ca. 5 mi S of Desert Hot Springs Comment
  SD128292  Lupinus concinnus R. Mitchel Beauchamp 1971-5-15 2415 Riverside Black Mountain campground, San Jacinto Mountains. 2207 Comment
  UCD84940  Lupinus concinnus Chuck Hughes 2010-3-23 212 Riverside About 11.5 miles south of Highway 62, next to railroad tracks. 254 Comment
  POM10226  Lupinus concinnus subsp. concinnus F. M. Reed 1907-5-5 1332 Riverside Fairmount Park. Comment
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Nov 30 2009
  RSA407141  Lupinus concinnus subsp. optatus N. C. Cooper 1944-6-16 1435 Riverside San Jacinto Mtns. Pine Cove. 1524 Comment
  RSA407145  Lupinus concinnus subsp. orcuttii N. C. Cooper 1944-4-22 1159 Riverside Banning. 732 Comment
  UC15781  Lupinus excubitus H. M. Hall Riverside San Jacinto Mountains Comment
  UC15857  Lupinus formosus H. M. Hall June, 1901 2167 Riverside Thomas Valley; San Jacinto Mountains, Thomas Valley 1371 Comment
  UCR89570  Lupinus formosus G. P. Schultz 1994-4-21 s.n. Riverside Box Springs Mountains, Pigeon Pass Road, c. 1 - 1.5 mi. above the dump. Comment
  RSA413693  Lupinus hirsutissimus N. C. Cooper 1944-4-22 1114 Riverside Banning. 701 Comment
  SDSU14185  Lupinus hirsutissimus Ingrid Poulin 2002-3-22 9 Riverside Santa Margarita Ecological Reserve; Red Mountain Truck Trail, 0.6 miles northeast of N. Stagecoach Lane. 216 Comment
  RSA307238  Lupinus hyacinthinus Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2110 Riverside Santa Rosa Mountains. Comment
  RSA633874  Lupinus hyacinthinus R. F. Thorne, J. P. Simon, C. W. Tilforth 1969-6-24 38132 Riverside San Jacinto Mountains: San Bernardino National Forest. Hill north of James Reserve and Lake Fulmor 1677 Comment
  UC1979609  Lupinus microcarpus var. densiflorus D. L Banks, Steve Boyd 1995-5-17 0441 Riverside NW Palomar Mountains; Cleveland National Forest, N of the Agua Tibia Wilderness Area; N face of Agua Tibia Mtn., lower Arroyo Seco; S of the Dripping Springs Campground, W of the Dripping Springs Trail. Comment
  POM10358  Lupinus sparsiflorus subsp. sparsiflorus Charlotte M. Wilder 1904-5-14 49 Riverside Wilders Canyon, Jurupa Hills, Comment
  RSA501016  Lupinus succulentus Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3135 Riverside Vail Lake area, ridge-top of volcanic substrate w/clay soil, 2 mi W of dam, at edge of escarpment E of Pauba Valley. 518 Comment
  UCR13087  Lupinus succulentus S. R. Szarek 1971-3-26 s.n. Riverside Elsinore. Alongside Hwy 71, entering town of Elsinore Comment
  UCR89849  Lupinus truncatus Scott D. White, S. J. Myers, S. Ogg Wilcox 1995-6-16 3311 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
  RSA69479  Luzula comosa F. W. Peirson 1922-5-19 3039 Riverside San Jacinto River. 1143 Comment
  HSC87255  Lycium andersonii Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. Ross 1988-3-10 2178 Riverside Palen Pass at the N end of the Palen Mtns. 500 Comment
  RSA480089  Lycium andersonii Steve D. Boyd, Sara Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2178 Riverside Palen Pass at the north end of the Palen Mountains. 500 Comment
  CAS-BOT-BC231478  Lycium brevipes var. brevipes Marcus E. Jones 1906-4-27 s.n. Riverside Indio Comment
  UCR89683  Lycium cooperi Bern Schwenn 1994-5-18 s.n. Riverside Sonoran (Colorado) Desert, Joshua Tree National Monument, north side of the Eagle Mountains, site of Conejo Well 1021 Comment
  CDA41138  Lycium torreyi T. C. Fuller 1971-5-2 19887 Riverside North of Hobson Way at the west end of Blythe. 0 Comment
  POM10257  Lythrum californicum Unspecified 1903-09 175 Riverside West Riverside bridge Comment
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Apr 7 2011
  RSA675800  Lythrum hyssopifolia Scott D. White 2001-7-9 8718 Riverside Menifee: 1 mile southwest of Bell Mtn. and 1/2 mile east of I-215 Freeway. 445 Comment
  UCR280837  Lythrum hyssopifolia T. B. Salvato, Gregg Miller 2005-6-3 1369 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
  RSA0001386  Machaeranthera canescens var. ziegleri L. B. Ziegler 1969-9-30 s.n. Riverside Santa Rosa Mts. 1982 Comment
  JEPS26394 Image available Malacothamnus densiflorus W. L. Jepson and H. M. Hall May 17 1901-Jun 1, 1901 1387 Riverside Palm Canyon, San Jacinto Mts. Comment
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Dec 14 2017
  CAS-BOT-BC206262  Malacothamnus fasciculatus A. M. White 1974-6-5 74 -671 Riverside Indian Road ca. 15 mi. W of Sun City 1219 Comment
  CSUSB1444  Malacothamnus fasciculatus Randy Salstrom 1966-4-12 s.n. Riverside On slopes of canyon of Box Springs Mountains at east end of Blain Street in Riverside 274 Comment
  RSA433318  Malacothamnus fasciculatus N. C. Cooper 1944-5-21 1279 Riverside Hemet. 549 Comment
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Oct 19 2009
  CAS-BOT-BC347704  Malacothrix glabrata Marcus E. Jones 1917-4-23 s.n. Riverside Mohave Comment
  CLARK-A1656-698  Malacothrix glabrata Theo Glenn 1979-3-9 Riverside Palm Springs Comment
  JEPS36807  Malacothrix glabrata W. L. Jepson 1928-4-25 12620 Riverside Cottonwood Spr. Colorado Desert, Eagle Mts. 731 Comment
  RSA145914  Malacothrix glabrata William McKinley Klein 1958-2-11 32 Riverside 2.6 mi. east of Cabazon on hwy. 70-99 545 Comment
  SEINET2053781 Image available Malacothrix saxatilis var. tenuifolia Tony Beck 1968-5-4 6805041 Riverside 5 miles west of Beaumont on Hwy 60. On a dry rocky slope above a cut in the hillside, about 25 yds from the road. 609 Comment
  JEPS66254  Malosma laurina W. L. Jepson 1901-6-1 1579 Riverside Temescal Wash 335 Comment
  RSA708015  Malosma laurina Scott D. White, Jennifer H. Jones 2005-7-5 11150 Riverside Rainbow Valley area, west of I-15 and just N of San Diego Co. boundary. 335 Comment
  UCR234754  Malosma laurina A. C. Sanders, John F. Green 2012-6-25 40303 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, benches south of I-15 and east of Horsethief Canyon Rd. 419 Comment
  SEINET10625161  Malva parviflora Nye Leith, Greg Gust 2005-3-11 Nye 63 Riverside Lake Elsinore. Intersection of Malaga and Mission Trail Rd. 398 Comment
  UC403441  Mammillaria tetrancistra L. J. Childs 1925-1-5 Riverside Deep Creek Canyon Colorado Desert, Santa Rosa Mt. (mouth) Comment
  RSA523965  Marah macrocarpa Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 4011 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  SD129568  Marah macrocarpa Steve Myers 1990-3-21 Riverside Santa Rosa Plateau area; along Los Gatos Road 365 Comment
  UCR91375  Marah macrocarpa Scott D. White 1995-4-5 2713 Riverside Moreno Valley, Base of slope in 'Badlands', off [Moreno-Redlands] Blvd 640 Comment
  RSA510025  Marah macrocarpa B. Pitzer, E. Misquez 1988-2-28 617 Riverside 2 mi s of Rancho California Road (sw of Murrieta, Walker Basin, Avenida del Oro); Walker Basin, Avenida del Oro. Comment
  RSA0043065  Marina parryi Duncan S. Bell, LeRoy Gross 2014-3-20 6267 Riverside Orocopia Mountains; Orocopia Wilderness area; northeastern section of range; approximately 3.5 air miles south of Hayfields Lake. 609 Comment
  SD27989  Marina parryi Carl B. Wolf 1932-4-28 3088 Riverside Eastern Colorado Desert, southwest edge of Maria Mountains, 10 miles from Blythe on Rice Road. 500 Comment
  RSA180242  Marsilea vestita E. W. Lathrop 1959-4-26 4510 Riverside 14 miles west of Murrieta Comment
  RSA0045154  Matricaria occidentalis Andrew Haimov, April Sleigh 1992-5-5 79 Riverside 1 1/2 miles east of Davis Road. 2 miles north of Ramona Expressway, San Jacinto Wildlife Area. Comment
  RSA614472  Meconella denticulata D. L. Banks 1997-4-5 1703 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation. South of Dorland Mountain, just west of the Wilderness Area boundry, along a tributary of the north fork of Pechanga Creek. 518 Comment
  SDSU17679  Meconella denticulata Jerry Jenkins 2001-4-3 2001 -032 Riverside Ravine south of S. M. River, UTM zone 6, 482400E, 3700400N. Comment
  RSA653648  Melica californica A. C. Sanders, G. Helmkamp 1997-3-15 19916 Riverside Lake Skinner area: hill (1864) E of Skinner Lake at NW end of Tucalota Hills., (33 deg 35.4'N, 117 deg 01.4'W; T7S R1W W/2 of SE/4 S6). [UTM 10km cell: MH-9E, 1N. Skinner Reservoir] 549 Comment
  CLARK-A1528-4725  Melica frutescens John C. Roos 1937-4-18 1360 Riverside San Jacinto Mountains Comment
  POM146215  Melica frutescens F. M. Reed 1926-5-16 5338 Riverside South of Menifee Comment
  RSA495443  Melica frutescens Steve Boyd, Timothy S. Ross, L. Arnseth 1989-3-18 2971 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  UC736844  Melica frutescens Frank W. Gould 1944-4-5 2233 Riverside 17 mi e Temecula (on Highway 79) Comment
  CLARK-A1528-74  Melica imperfecta C. M. Flanagan 1973-4-14 OO 107 Riverside Sunnymead 609 Comment
  UCR20447  Melica imperfecta E. W. Lathrop 1966-4-13 6171 Riverside Peninsular Range, 3 mi NW of Murrieta Comment
  UCR240636  Melica imperfecta Tracy Tennant, Jeffrey Ross 1998-4-30 MOR- 44 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper Hathaway Canyon 884 Comment
  SEINET11678863  Melica imperfecta Unknown 1936-1 12769 Riverside 5 mi E of Banning Comment
  UCR20709  Melilotus indicus A. C. Sanders, Steve Boyd 1980-5-2 1425 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  RSA440356  Mentzelia affinis P. J. Remple 1942-3-1 s.n. Riverside Between Indio and Palm Springs. Comment
  RSA0060678  Mentzelia affinis Dave Silverman, Onkar Singh 2010-3-25 7846 Riverside Palo Verde Mesa, 220 m east of Black Creek Rd, 6.6 km west of McCoy Wash, and 8.2 km north of I-10. 160 Comment
  POM99008  Mentzelia albicaulis var. albicaulis E. C. Jaeger 1926-4-24 s.n. Riverside Eagle Mts. eastern Riverside Co. 976 Comment
  RSA525255  Mentzelia involucrata Steve Boyd, L. Arnseth, Yvonne Rasmussen, Hugo Cota 1990-5-3 4567 Riverside Vail Lake area, steep SE flank of Oak Mtn. above NE end of lake. 549 Comment
  RSA69582  Mentzelia involucrata F. W. Peirson 1922-4-9 753 Riverside Palm Canyon stream near Alkali Canyon, Riverside County Comment
  SDSU8092  Mentzelia involucrata Darren S. Smith 1992-4-5 Riverside 480 Comment
  UC872489  Mentzelia involucrata C. L. Hitchcock 1940-3-29 5855 Riverside ca 100 yards e Spring; Cottonwood Canyon Comment
  UCR200296  Mentzelia involucrata Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, T. Thibault 2004-5-14 11219 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains, western base of the Chocolate Mountains, small canyon c. 1.25 mi due north of Imperial Co. line and c. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station. Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range 549 Comment
  UCR216680  Mentzelia involucrata Jim Andre, T. La Doux 2009-3-10 11241 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
  UCSB24938  Mentzelia involucrata Keefe, Joseph 1967-3-23 Riverside Whitewater Canyon Road, 1.9 miles north of U.S. Highway 99, east of Banning 609 Comment
  UC335512  Mentzelia involucrata John Gill Lemmon Riverside Colorado Desert Comment
  JEPS26731  Mentzelia longiloba Marjorie D. Clary 1936-3-20 2595 Riverside Forty miles north of Desert Center on the road to Webber City. North Colorado Desert. Comment
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Aug 28 2016
  RSA0107475  Mentzelia longiloba var. longiloba Duncan S. Bell, Amanda Turek 2009-3-29 149 Riverside Collecting in the large western drainage of the Arica Mountains, within the Palen/McCoy wilderness area. 434 Comment
  RSA543979  Mentzelia micrantha Steve Boyd 1991-5-10 6211 Riverside Santa Ana Mountains, base of range, just N of mouth of Hagador Cyn at bottom of Skyline Drive. 427 Comment
  RSA588974  Microseris douglasii subsp. platycarpha D. E. Bramlet 1994-4-20 2369 Riverside Shipley Reserve/SE corner of Lake Skinner Co. Park. Site is beside a large, ephemeral drainage S of the equestrian trail. It is approx 762 m SE of the park entrance road and 579m NW of East Benton Road. 518 Comment
  RSA180327  Microseris heterocarpa E. W. Lathrop 1965-4-18 5664 Riverside 10 miles west of Murrieta. Comment
  RSA645675  Microseris heterocarpa Scott D. White 1999-5-2 7293 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
  POM15165  Microseris lindleyi Mary F. Spencer 1922-4-23 531 Riverside Maillard Canyon, prope [near] Banning. 701 Comment
  UCR133406  Microseris lindleyi Tracy Tennant, J. S. Ross 1998-5-7 MOR- 112 Riverside San Bernardino Mtns. Region, Morongo Indian Reservation, Wood Canyon (polygon W8), c. 0.6miles NNW of Cabazon. 1280 Comment
  UCR133407  Microseris lindleyi Tracy Tennant, J. S. Ross 1998-5-7 MOR- 81 Riverside San Bernardino Mtns. Region, Morongo Indian Reservation, Wood Canyon, c. 0.6miles NNW of Cabazon. 1280 Comment
  UCR88423  Microseris lindleyi A. C. Sanders, K. C. Rose 1995-4-5 16360 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 Comment
  RSA586766  Mimulus aurantiacus D. L. Banks, S. D. Boyd 1995-5-17 464 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. 659 Comment
  JOTR33997  Mimulus bigelovii var. bigelovii La Doux, Tasha, M. Harding 2010-4-7 2885 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View; side canyon leading north, approx. 1 mile north of park boundary Comment
  POM292851  Mimulus bigelovii var. bigelovii Lyman Benson, Robert Benson 1952-4-8 14846 Riverside Colorado Desert. 2 miles west of Shaver Summit, east of Indio, US 66. Colorado Desert Drainage Area. 610 Comment
  RSA776644  Mimulus bigelovii var. bigelovii Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-28 1101 Riverside Alligator ACEC, north side of Chuckwalla Mountains, just south of Desert Center. 413 Comment
  SEINET187379  Mimulus bigelovii var. bigelovii P. A. Munz 1940-3-23 15719 Riverside 3 mi N of Cottonwood Springs Eagle Mts 914 Comment
  UCR117086  Mimulus brevipes A. C. Sanders, T. B. Salvato 2001-5-16 24300 Riverside Perris-Aguanga Basin, S of Hemet, 1/4 mi. south of Gibbel Rd. about 1 mile east of State St., foothills forming east end of Diamond Valley, 1 mi. SSE of Hemet Butte, south of mouth of Avery Cyn. 518 Comment
  UCR30843  Mimulus breweri A. C. Sanders, W. Rehlaender, N. M. Fellows 1983-6-28 3871 Riverside San Jacinto Mtns, Black Mountain: Forest Road 4S01, 3.9 mi above Hwy 243 2012 Comment
  UCD122517  Mimulus cardinalis R. N. Raynor 1938-6-20 s.n. Riverside Coahuila. Comment
  CLARK-A1045-283  Mimulus diffusus George K. Helmkamp 1979-5-16 Riverside San Jacinto Mountains along road; yellow pine forest just west of North Fork of the San Jacinto River; Lake Fulmor 7.5'Q Comment
  RSA527835  Mimulus diffusus Scott D. White 1991-5-10 91 -123 Riverside Hwy 79, immediately W of US Forest Service Campground at Dripping Springs. 549 Comment
  UCR114831  Mimulus floribundus Mitch Provance 1998-4-21 1113 Riverside Jurupa Mountains, Glen Avon Hts., Boulder Hill Park, 0.7 km west of Pyrite St. on the north side of Granite Hill Dr. 305 Comment
  LA209492  Mimulus fremontii John O'Leary; 1975-6-13 399 Riverside Yellow Pine Forest, near side of Hy. leading from Banning to Idyllwild, 0.5 mi N of lake Fullmer 1584 Comment
  RSA772533  Mimulus guttatus Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4481 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
  UCR15997  Mimulus guttatus S. Nelson 1974-5-9 s.n. Riverside Santa Ana River Park 244 Comment
  RSA356745  Mimulus guttatus subsp. guttatus Robert F. Thorne 1973-5-23 45517 Riverside Santa Rosa Plateau:; N side of Mesa de Colorado. 610 Comment
  UC1537586  Mimulus nasutus Gordon H. True Jr. 1935-4-1 191 Riverside Box Springs 365 Comment
  UC26999  Mimulus nasutus H. M. Hall June 1901 2190 Riverside s side San Jacinto Mountains 1371 Comment
  UCR202579  Mimulus pilosus Scott D. White, Justin M. Wood 2008-7-8 12397 Riverside San Jacinto Mountains, Johnson Meadows 1488 Comment
  UCR207639  Mimulus pilosus O. F. Clarke 2005-6-19 s.n. Riverside Peninsular Range; Gavilan Hills, Harford Springs County Park, off Idaleona Rd. 686 Comment
  RSA80975  Mirabilis laevis var. crassifolia G. R. Campbell 1952-4-6 18424 Riverside 3 miles E of Lake Matthews Comment
  POM47187  Mirabilis laevis var. retrorsa Mary F. Spencer 1920-3-31 s.n. Riverside Palm Springs 122 Comment
  RSA550345  Mirabilis laevis var. villosa Walter Wisura, John Dolan, M. Wall 1992-3-25 4643 Riverside Lowdesert: Cuckwalla Mts. 2.1 mi W of Corn Spring. Comment
  SEINET223388  Mirabilis multiflora B. Ertter, J Strachan 1980-5-21 3486 Riverside Santa Rosa Mt road (USFS Rd 7S02) near Hwy 74 (Pines to Palms Hwy) 1707 Comment
  UCR274218  Mirabilis tenuiloba Duncan S. Bell, Evan Meyer 2014-10-29 7675 Riverside Santa Rosa Mountains, around the mouth of Martinez Canyon, c. 3.5 air miles southwest of Valerie 169 Comment
  JOTR31889  Mohavea confertiflora La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2139 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Rockhouse Canyon; steep-walled canyon and sandy wash along an old road Comment
  RSA306175  Mohavea confertiflora Fay A. MacFadden 1940-3-17 15277 Riverside Road from 29 Palms to Indio, 2/3 of way to Indio. San Bernardino Mtns 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
  UCR57138  Monardella hypoleuca subsp. intermedia Ed LaRue 1989-6-23 s.n. Riverside Peninsular Range; Santa Ana Mtns., Cleveland National Forest, parts of McVicker, Leach, and Dickey Canyons, just E and SE of Lake Elsinore 854 Comment
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Aug 17 2012
  LA62737  Monardella linoides subsp. linoides Carl Epling; 1942-8-6 sn Riverside 2.5 E of Thomas Mt. Tavern, Pines to Palms Hwy Comment
  CAS-BOT-BC215492  Monardella nana E. McClintock; H. Lewis 1941-6-29 77 Riverside Road up Santa Rosa Mt. 1 mile beyond canyon where stream crosses road Comment
  LA96109  Monardella nana Elizabeth McClintock; 1941-6-8 69 Riverside 3 mi. E of Ribbonwood Camp, Pines to Palms Hwy Comment
  SEINET2442169  Monardella nana subsp. arida Unknownnown 1941-6-29 76 Riverside Road up Santa Rosa Mt. 1/2 mile beyond canyon where stream crosses road. Comment
  UCR13959  Monardella nana subsp. arida C. M. Flanagan 1973-5-12 00405 Riverside San Jacinto Mtns, NE slopes of San Jacinto Mtns, near upper stretches of Deep Canyon 1098 Comment
  UCR221486  Monardella nana subsp. arida Elizabeth McClintock, Harlan Lewis 1941-6-29 075 Riverside Peninsular Range; Santa Rosa Mtns., road up Santa Rosa Mountain, 4.5 miles above Pines to Palms Highway, in canyon where stream crosses road 1875 Comment
  UCR221487  Monardella nana subsp. arida Elizabeth McClintock, Harlan Lewis 1941-6-29 076 Riverside Peninsular Range; Santa Rosa Mtns., road up Santa Rosa Mountain, 0.5 mile beyond canyon where stream crosses road 1944 Comment
  HSC86136  Monardella nana subsp. leptosiphon B. Freeman 1969-6-19 6906192 Riverside San Jacinto Mtns., University of California James Reserve, S of lodge, 40 ft. across stream Comment
  RSA750302  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-15 115 Riverside San Jacinto Mts. On slope south of Strawberry Creek, and west of Domengonio Flats. Comment
  RSA750309  Monardella nana subsp. tenuiflora Elizabeth McClintock 1941-7-21 125 Riverside San Jacinto Mountains. Trail to Hidden Lake. Comment
  UC63741  Monardella nana subsp. tenuiflora H. M. Hall 1897-7-17 691 Riverside Tahquitz Valley San Jacinto Mountains 2438 Comment
  CAS-BOT-BC349702  Monoptilon bellidiforme Ivan Johnston 1917-4-4 1055 Riverside Colorado Desert. Palm Canyon 457 Comment
  CAS-BOT-BC349793  Monoptilon bellioides Carl B. Wolf 1932-4-27 3006 Riverside Colorado Desert. 17 mi. E. of Mecca, on Blythe Road 152 Comment
  RSA32426  Monoptilon bellioides N. C. Cooper 1944-3-25 1035 Riverside Morongo Pass. 457 Comment
  CAS-BOT-BC267021  Muhlenbergia filiformis Ralph Hoffmann 1929-9-8 s.n. Riverside San Jacinto Mountain 1828 Comment
  UC39904  Muhlenbergia filiformis H. M. Hall June, 1901 2290 Riverside along water courses San Jacinto Mountains, vicinity of Strawberry Valley 1615 Comment
  UCR225155  Muhlenbergia filiformis Steve Boyd, Gary Wallace 2005-7-30 11655 Riverside Peninsular Ranges; San Jacinto Mountains region, San Jacinto Mountains State Park, Hidden Lake area, northeast of Hidden Divide, southeast of Long Valley, near head of Hidden Fork of Tahquitz Creek 2683 Comment
  RSA25135  Muhlenbergia microsperma C. L. Hitchcock 1940-4-2 5915 Riverside Cottonwood Spring wash, Joshua Tree National Monument. Comment
  SD186042  Muhlenbergia microsperma A. C. Sanders 2004-4-20 27550 Riverside 0.5 km west of Tenaja Road and just north of the San Diego county line. 640 Comment
  UCR20871  Muhlenbergia microsperma Steve Boyd 1980-5-14 s.n. Riverside Perris Basin, Motte Reserve, in the rocky hills 2.5 mi NW of Perris 518 Comment
  POM48398  Muhlenbergia rigens P. A. Munz, I. M. Johnston 1924-7-28 8814 Riverside Pine Flats 1738 Comment
  UC69350  Muhlenbergia rigens H. M. Hall July 1901 2540 Riverside West Fork Snow Creek San Jacinto Mountains 1524 Comment
  RSA359530  Muilla maritima Steve Boyd 1986-3-9 1394 Riverside Temescal Canyon: Alberhill Mountain, S slope of mountain just east of claymine area. 427 Comment
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Jan 15 2009
  RSA68694  Muilla maritima F. W. Peirson 1922-5-20 3046 Riverside Hemet Valley. (San Jacinto Mountains) 1402 Comment
  SEINET9325076  Nama demissa Unknown 1976-5-2 Riverside Red Mountain Road. Comment
  UCR60559  Nama demissa R. F. Thorne, C. W. Tilforth 1980-5-28 54249 Riverside San Bernardino Mtns., Branch canyon west of Whitewater Canyon, c. 3.2 mi. north of Whitewater Post Office and Hwy 10. 612 Comment
  SEINET3145433  Nama hispida var. spathulata R. W. Spellenberg, N. Zucker 2001-3-24 13180 Riverside Just N of IH-10 on Hayfield Rd., ca. 30 km W of Desert Center, ca. 5 km E of Chiriaco Summit 440 Comment
  UCR157356  Nama stenocarpa Chris E. True, Robert Cox 2005-7-21 s.n. Riverside San Jacinto Valley, Mystic Lake, lakeshore west of Bridge Street intersection with Gilman Springs Road 436 Comment
  RSA450147  Navarretia hamata J. C. Roos 1965-6-30 s.n. Riverside ortega Highway, Santa Ana Mtns. Comment
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May 21 2011
  RSA674533  Navarretia hamata Scott D. White, Sandy Leatherman 2000-5-31 7991 Riverside Santa Rosa Plateau: Near Squaw Mountain. Series of unpaved roads on east- and north-facing slopes. 640 Comment
  UCR18148B  Nemacaulis denudata var. gracilis A. C. Sanders 1978-2-12 970 Riverside Coachella Valley, Indian Wells; growing in the sand dunes at the intersection of Bay Club Drive and Highway 111 30 Comment
  UCR280956  Nemacladus ramosissimus Mitch Provance, Matt K. Beyers, John Hazlett, Douglas Gordon-Blackwood 2017-4-13 417- 59 Riverside Peninsular Ranges, Wildomar, Sedco Hills, along transmission road between Lost Rd. and Lake View Rd. 564 Comment
  SEINET10461025  Nemacladus ramosissimus Wilder WILDER 575 Riverside Jurupa Mountains, Wilder's Canyon Comment
  CLARK-A1045-140  Nemacladus rubescens George K. Helmkamp 1978-4-25 Riverside Deep Canyon rocky terrace; Palm Desert 15'Q Comment
  RSA75141  Nemacladus rubescens F. W. Peirson 1928-4-24 7914 Riverside Below Cottonwood Springs, Eagle Mountains. Northern Colorado Desert. Comment
  RSA75150  Nemacladus tenuis var. tenuis H. K. Wagnon 1944-5-20 387 Riverside Tachevah canyon, Palm Springs. Comment
  RSA421341  Nemophila menziesii Julia McClure 1940-05 s.n. Riverside San Jacinto. Comment
  UCR20808  Nemophila menziesii A. C. Sanders, Steve Boyd 1980-4-17 1346 Riverside San Jacinto Mtns, Pine Meadow in upper Garner Valley 1433 Comment
  UCR241489  Nemophila menziesii Tracy Tennant, Jeffrey Ross 1998-5-21 MOR- 250 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, Hathaway Creek Canyon, NW of Cabazon 976 Comment
  UC63801  Nemophila menziesii var. integrifolia H. M. Hall July, 1901 2266 Riverside Fuller's Mills Mountains San Jacinto Mountains, Fuller's Mills Mountains 1554 Comment
  UC68730  Nicotiana clevelandii H. M. Hall 1905-4-16 5802 Riverside 10 mi w Coachella (Marshall Canyon); Colorado Desert, Marshall Canyon 91 Comment
  CAS-BOT-BC233451  Nicotiana glauca S. B. Parish 1913-9-20 8622 Riverside Mecca, Salton Sink 57 Comment
  UCR176697  Nicotiana glauca R. D. Goeden 1966-1-20 s.n. Riverside Riverside, UCR Campus, near reservoir 366 Comment
  UCR2914  Nicotiana glauca Nancy Atha 1963-3-24 32463- 8 Riverside Upper Santa Ana River/San Bernardino Valley region, Riverside, NW side of [Quarry Hill] at the corner of Madison St. and Victoria Ave 335 Comment
  UC170128  Nicotiana obtusifolia E. E. Schellenger 1894-12-3 91 Riverside Chuckwalla Wash; Colorado Desert Comment
  UCR256324  Nicotiana obtusifolia Duncan S. Bell 2012-3-18 3175 Riverside Sonoran (Colorado) Desert, Mecca Hills; southeastern section of hills; up a side canyon of the east fork of Hidden Canyon, c. 1.5 air miles southwest of Hidden Spring 129 Comment
  UCR238221  Nolina parryi Mark A. Elvin 2003-3-26 2366 Riverside Peninsular Range; San Jacinto Mountains, Anza Pass on Hwy 371 1220 Comment
  SD148061  Nuttallanthus texanus Andy C. Sanders, M. Provance, T. B. Salvato 2001-4-6 23958 Riverside Perris-Aguanga Basin Region: Temecula, Long Canyon area west of Del Rey Rd., hills on both side of gas pipeline route 366 Comment
  UC64206  Nuttallanthus texanus H. M. Hall 1897-3-20 416 Riverside vicinity of Winchester; Southern California Comment
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Mar 20 2011
  RSA776903  Oenothera deltoides Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-5 959 Riverside Blythe-Rice Road, East/Northeast of Arica Mountains on Blythe-Rice Road, about 1 mile south of railroad crossing. 243 Comment
  RSA784235  Oenothera micrantha var. exfoliata J. D. Olmsted 1962-5-1 427 -B Riverside 5 degrees NE slope just west of top of highest Southern California waterfall; 1/4 mi. SE of Falls Plateau, Snow Canyon N of Mt. San Jacinto. 945 Comment
  RSA175130  Oligomeris linifolia Robert F. Thorne 1963-3-29 32416 Riverside 9 miles E of Mecca, Mecca Hills 152 Comment
  UC572628  Oligomeris linifolia H. S. Yates 1937-3-23 6425 Riverside near Thermal; Thermal Quad. 30 Comment
  UC69147  Oligomeris linifolia H. M. Hall June, 1905 6238 Riverside vicinity Riverside (Gavilan Hills); Gavilan Hills 365 Comment
  OBI59203  Oncosiphon piluliferum Robert Noll 1998-3-23 s.n. Riverside Moreno Valley, E of Lake Perris along JFK Blvd. Also seen in Orange county, Haul Cyn Rd, Irvine Ranch Comment
  UCR137332  Oncosiphon piluliferum A. C. Sanders 2004-4-9 27479 Riverside Perris Valley, Ramona Expressway at east end of Lake Perris dam 457 Comment
  RSA4029  Opuntia basilaris var. basilaris C. B. Wolf 1931-10-14 2456 Riverside Snow Creek 3/4 miles below the Fish Hatchery, N base of San Jacinto Mountains. 427 Comment
  RSA696233  Opuntia bigelovii Keith E. Hoffmaster 1933-4-14 s.n. Riverside Palm Springs Comment
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Aug 27 2011
  CAS-BOT-BC56829  Opuntia chlorotica Dr. Barton W. Evermann 1924-4-1 s.n. Riverside Field redacted by CAS, contact the data manager for more information Comment
  POM288145B  Opuntia phaeacantha David Griffiths 1909-5-10 9675 Riverside Banning. Comment
  POM306430  Opuntia polyacantha var. erinacea Scott Haselton 1962-12-28 s.n. Riverside San Jacinto Mountains. Palms to Pines Highway; east side. 1220 Comment
  UCSB24788  Opuntia polyacantha var. erinacea Rieser, D. 1966-5-15 Riverside Pinyon Flats Campground on south side of road, 9.0 miles southeast from junction with road to Anza. Comment
  CAS-BOT-BC56909  Opuntia polyacantha var. hystricina C. B. Wolf; P. C. Everett 1938-9-29 3352 Riverside Field redacted by CAS, contact the data manager for more information Comment
  RSA65623  Opuntia ramosissima F. W. Peirson 1928-4-24 7906 Riverside Below Cottonwood Springs, Eagle Mountains. Northern Colorado Desert. Comment
  CLARK-A1528-1043  Orcuttia californica Walton Wright 1977-8-15 Riverside Santa Ana Mountains Comment
  SD103331  Orobanche californica subsp. feudgei W. P. Armstrong 1979-6-23 Riverside Bautista Canyon Road, ca. 6.0 miles northwest of junction with Highway 371. 1219 Comment
  UCR103296  Orobanche cooperi George K. Helmkamp 1998-4-4 3176 Riverside Sonoran (Colorado) Desert, 2.3 mi. north of Hwy I-10 on Eagle Mtn Rd. 274 Comment
  RSA602272  Orobanche cooperi Louis C. Wheeler 1952-4-5 6848 Riverside Mecca: Box Canyon Road at canal. Comment
  JOTR34151  Orobanche fasciculata Harding, Mitzi, B. Regan 2011-5-25 35 Riverside Joshua Tree National Park. Little San Bernardino Mountains; approx. 2 mi west of Upper Covington backcountry board 1399 Comment
  UCR58949  Orobanche fasciculata Kenneth Cooper 1986-4-18 s.n. Riverside San Jacino Mtns, Oasis de los Osos Preserve of the nature conservancy, Snow Creek Canyon, at the N foot of the San Jacinto Mtns Comment
  CLARK-A1528-4772  Oryzopsis hymenoides Alfred R. Roos 1937-4-18 2397 Riverside Snow Creek Comment
  UC1979671  Osmorhiza brachypoda Darin L. Banks, Steve Boyd 1995-3-30 113 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., W of the Dripping Springs Alcove, E of the Woodchuck Trail. Comment
  UC64173  Oxalis albicans subsp. californica H. M. Hall 1897-3-20 403 Riverside Gavilan Comment
  UC534898  Oxytheca trilobata Susan G. Stokes 1934-7-1 312 Riverside San Jacinto Mt. 1219 Comment
  UCR55276  Oxytheca trilobata Kathy Harper 1988-6-11 s.n. Riverside San Jacinto Mtns., On Thomas Mtn Rd., south of Thomas Mtn. Lookout. Comment
  CAS-BOT-BC327900  Palafoxia arida Ira L. Wiggins 1941-3-24 9564 Riverside 0.3 miles S of Myoma, 4.6 miles N of Indio Comment
  UCR124639  Palafoxia arida B. C. Templeton, I. W. Clokey 1930-4-9 1006 Riverside Sonoran (Colorado) Desert, North of Palm Springs 400 Comment
  SEINET10875583  Palafoxia arida David B. Dunn, Shogo; Schroeder; Bruskin; A. Folsom 1948-3-13 Dunn 3725 Riverside Found growing in a wash. Indio Hills, Colorado Desert. Near Pushawalla. Comment
  RSA726577  Palafoxia arida var. arida Naomi Fraga, Sarah J. De Groot, Lisa Rojas, Leland Lubinsky 2005-2-10 1419 Riverside Along Palen Road near Hwy 177. 170 Comment
  RSA780233  Palafoxia arida var. arida Stephanie Rockwood, Christi Gabriel 2011-10-12 112 Riverside Rice Valley Dunes, Rice Valley Wilderness. Highway 62 toRice Valley Dunes Road to Midland Vidal Road (Power Line Access Road). South/South east side of dunes. 244 Comment
  UC604859  Palafoxia arida var. arida Roxana S. Ferris and Ruth P. Rossbach 1938-5-15 9524 Riverside Pinto Basin 16 mi from Cottonwood Springs Comment
  UCR279547  Palafoxia arida var. arida A. C. Sanders, Jim Malusa 2017-3-27 43132 Riverside Sonoran (Colorado) Desert, NW edge of Chocolate Mountains, lower Salt Creek on the illegal OHV road from the Coachella Canal to the trestle, inside Navy Aerial Gunnery Range 44 Comment
  UC573917  Panicum capillare H. S. Yates 1937-6-27 6707 Riverside near Relief Hot Springs; San Jacinto Quad. Comment
  UCR92260  Panicum capillare Scott D. White 1995-8-23 3572 Riverside San Jacinto Valley, San Jacinto River, just north of City of San Jacinto boundary, c. 1 mi SE of bridge at State Street 463 Comment
  UCR188996  Panicum dichotomiflorum subsp. dichotomiflorum Fred M. Roberts, S. Leatherman 2007-9-19 6590 Riverside Santa Ana Canyon, Santa Ana River, across from Green River Golf Course, 0.15 km W of Green River Road bridge 128 Comment
  POM366031  Panicum urvilleanum George R. Johnstone 1929-11-29 s.n. Riverside 20 miles from Palm Springs; 244 Comment
  RSA525251  Papaver californicum Steve Boyd, Tim S. Ross 1990-5-11 4629 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dripping Springs campground of Cleveland National Forest, S of Hwy. 79. 549 Comment
  RSA775104  Parietaria hespera Duncan S. Bell, Michael Hee 2011-3-18 2049 Riverside Chuckwalla Mountains; north side of mountain range approximately 3 air miles southeast of Desert Center. 392 Comment
  SD185325  Parietaria hespera A. C. Sanders 1995-3-19 16159 Riverside Coachella Valley; alluvial fan of Chino Canyon along the Palm Springs tram road, N of the road, 14 telephone poles above Hwy 111 (Palm Canyon Dr.) 299 Comment
  UCR20760  Parietaria hespera var. californica A. C. Sanders, Steve Boyd 1980-5-2 1440 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  POM85753  Parietaria hespera var. hespera Marcus E. Jones 1906-4-26 s.n. Riverside Indio Comment
  CSUSB1107  Parkinsonia aculeata R. Van Curen 1970-5-20 28 Riverside Base of Mount Rubidoux at Exit. Roadside. 259 Comment
  SJSU5172  Parkinsonia florida R. C. McGehee 1970-4-14 187 Riverside Rice Rd 7 mi NE of Desert Center Comment
  UCR263645  Parkinsonia florida Aaron C. Sedgwick, Brett Griffin 2012-3-28 028 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road. c. 6 miles south of Hwy I-10 323 Comment
  RSA0054913  Parkinsonia microphylla W. Marquart 1938-3-12 s.n. Riverside Fifteen mi. west of Blythe. Comment
  CLARK-A1528-81  Paspalum dilatatum C. M. Flanagan 1973-6-13 OO 707 Riverside Morongo Indian Reservation 1127 Comment
  CAS-BOT-BC258776  Paspalum urvillei H. A. Gray 1915-6-1 s.n. Riverside Palm Springs R. R. Station, Colorado Desert Comment
  SD129613  Pectis papposa A. C. Sanders 1989-9-19 9507 Riverside Chocolate Mountains Aerial Gunnery Range, 1.75 km (airline) south of Tabasca Tank, along wash above Tabasca Target(UTM:11S,PH-35E,07N) 680 Comment
  UCR24128  Pectis papposa John C. Roos 1965-9-5 s.n. Riverside Sonoran (Colorado) Desert, 18 mi. west of Blythe 122 Comment
  CAS-BOT-BC355867  Pectis papposa var. papposa Lewis S. Rose 1959-1-8 59004 Riverside La Quinta 15 Comment
  JEPS22512  Pectocarya heterocarpa Rimo Bacigalupi with Paul Hutchison 1958-2-19 6197 Riverside 9.4 mi n Blythe; western base of Big Maria Mts., in wash 167 Comment
  RSA480082  Pectocarya heterocarpa Steve Boyd, S. Meury, Richard Noyes, D. Nordin, Timothy S. Ross 1988-3-10 2171 Riverside Palen Pass at the north end of the Palen Mountains. 500 Comment
  UCR127569  Pectocarya heterocarpa A. C. Sanders, K. C. Rose, D. Woodard 1995-3-15 16125 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, along Whitewater River wash between Windy Point and Hwy I-10, Coachella Valley 396 Comment
  UCR84650  Pectocarya linearis Scott D. White, S. Ogg 1994-4-21 1992 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
  UCR88575  Pectocarya linearis A. C. Sanders, J. C. Lyman 1995-4-16 16564 Riverside San Bernardino Valley, Glen Avon: sand dune area on N slope of the Jurupa Hills (draining toward Fontana), Pyrite St. Canyon 335 Comment
  RSA655095  Pectocarya linearis subsp. ferocula Scott D. White 2000-4-17 7657 Riverside Menifee / Sun City Area: South of McColl Ave. and east of I-215 freeway. 442 Comment
  RSA741101  Pectocarya penicillata Scott D. White, Justin M. Wood 2008-6-5 12082 Riverside Garner Valley: Hwy 74 at Thomas Mountain Rd. - SW corner of junction. 1326 Comment
  SEINET7063236  Pectocarya penicillata A. G. Vestal 1963-5-19 s.n. Riverside Open bush country about 3.6 miles northeast of Aguanga on Route 371 [on the Cahuilla Road]. UTM Zone 11, 512930mE, 3702605mN. (WGS84/NAD83). 887 Comment
  UC1178536  Pectocarya platycarpa Peter Kamb 1948-4-11 886 b Riverside 5 mi e Garnet (Aqueduct rd); Coachella Valley 30 Comment
  VVC2450  Pectocarya platycarpa Tim Thomas 2013-3-18 5937 Riverside Sonoran Desert, 10 miles WSW of Blythe NE of Mule Mtns. 116 Comment
  UC882254  Pectocarya recurvata I. W. Clokey 1935-4-17 6860 Riverside Colorado Desert, Cottonwood Springs Comment
  UCR211709  Pectocarya recurvata Fred M. Roberts, Michelle Balk 2006-5-1 6326 Riverside Perris Basin, Old Salt Creek watershed, South Hemet Hills, west of California Ave, c. 2.8 km southwest of the west end of Hemet Ryan Airport runway 483 Comment
  SD80850  Pectocarya setosa Helen V. Witham 1970-4-29 820 Riverside 22 miles east of Hemet 1299 Comment
  RSA787609  Pellaea andromedifolia John S. Garth 1944-4-8 1089 Riverside Andreas Canyon. 457 Comment
  RSA711766  Pellaea mucronata A. C. Sanders, Mike Misenhelter 2005-3-23 29283 Riverside Santa Rosa Plateau, east slope of Squaw Mtn., Av. Escala just above Av. Caleta, N of Tenaja Rd. 701 Comment
  UCR156292  Pellaea mucronata T. B. Salvato, Kent Beaman 2005-5-16 836 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
  RSA102270  Pellaea mucronata subsp. californica S. B. Parish, W. F. Parish 1881-08 511 Riverside San Jacinto [most likely Mount San Jacinto and not the town of San Jacinto, north of Hemet--SB] Comment
  POM50384  Pellaea mucronata var. mucronata W. W. Eggleston 1924-3-10 19533 Riverside San Jacinto Station, Cleveland Forest 600 Comment
  SD229047  Pennisetum setaceum Dick Schwenkmeyer 2012-5-22 711 Riverside Snow Creek, north base of Mt. San Jacinto, approx. 4 miles south of intersection of highways 10 and 111 511 Comment
  POM364501  Pennisetum setaceum Gary D. Wallace 1964-4-26 s.n. Riverside San Jacinto Mountains. Comment
  RSA773108  Penstemon californicus Duncan S. Bell, Joy D. England 2010-6-14 1300 Riverside San Bernardino National Forest: Garner Valley, just west of Highway 74 approximately 2.5 miles southeast of junction of forest service road 6S04 and forest service road 6S13. 1367 Comment
  UCR35258  Penstemon californicus L. B. Ziegler 1967-5-31 139 Riverside San Jacinto Mtns, Hemet Valley 1402 Comment
  SD152743  Penstemon centranthifolius Steve Boyd 1992-4-15 6882 Riverside Santa Ana Mtns, San Mateo Cyn Wilderness Area. Bluewater Cyn along Bluewater Tr. downstream to the confluence with San Mateo Creek. 334 Comment
  UCR155044  Penstemon centranthifolius Jason L. Hlebakos 2005-5-30 819 Riverside Peninsular Range, Durasno Valley, SE of Coahuilla Indian Reservation, c. 11 mi east of Bonnie Road, and c. 6 mi SSW of Anza 1402 Comment
  UCR268292  Penstemon centranthifolius Jim Andre 2012-6-15 30529 Riverside San Jacinto Mountains, Banning, along Hwy 243, 10.7 miles south of Interstate 10, San Bernardino National Forest 1499 Comment
  LA209524  Penstemon clevelandii Carl Epling; William Stewart 1936-5-9 sn Riverside Santa Rosa Mountains, near Ribbonwood Comment
  NY583953  Penstemon clevelandii var. connatus R. F. Thorne 1978-4-23 52077 Riverside Bighorn Lookout: north slope of Santa Rosa Mountains Comment
  NY583965  Penstemon clevelandii var. connatus H. M. Hall 1899-5-24 1160 Riverside Van de Venter's; San Jacinto Mountains 1356.4 Comment
  RSA44866  Penstemon eatonii J. C. Roos 1948-5-15 3839 Riverside Lost Palms Canyon, Eagle Mountains., Colorado Desert. Comment
  RSA285588  Penstemon labrosus D. C. Michener 1980-7-18 3712 -a Riverside Below summit Mts. Below summit of Thomas Mts. Comment
  RSA402126  Penstemon labrosus H. E. Hasse 1892-7-4 s.n. Riverside San Jacinto. Comment
  RSA402127  Penstemon labrosus M. B. Dunkle 1933-7-19 3671 Riverside Upper Tahquitz Valley, San Jacinto Mountains. 2409 Comment
  RSA68357  Penstemon labrosus Verne Grant, Alva Grant 1951-7-20 16099 Riverside Idyllwild 1646 Comment
  NY650665  Penstemon rostriflorus F. W. Pennell 1940-4-28 25286 Riverside Route 74, Santa Rosa Indian Reservation 1402.1 Comment
  RSA401811  Penstemon spectabilis Martha Hilend 1928-4-8 170 Riverside Lake Elsinore, about 3 miles west of lake. Comment
  RSA559335  Penstemon spectabilis Steve D. Boyd, Tim S. Ross 1992-5-15 7407 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Major lateral drainage north of Bear Canyon, vicinity of the junction of Tenaja and Morgan Trails, west of Round Potrero. 671 Comment
  UCR268278  Penstemon spectabilis var. subviscosus Jim Andre 2012-6-15 30503 Riverside San Jacinto Mountains, San Bernardino National Forest, along Hwy 243 at Mount Edna Road, c. 1 mile north of McMullen Flat, 5.9 miles south of Hwy I-10 at Banning 1172 Comment
  RSA0070921  Pentagramma maxonii F. W. Peirson 1921-3-20 5357 Riverside Andreas Canyon, near Palm Springs. 243 Comment
  UCR270182  Pentagramma triangularis A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-2 42394 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, vicinity of lab and old Emerson house site 488 Comment
  RSA0060323  Pentagramma triangularis Steve Boyd, Timothy S. Ross, Laurel Anrseth 1990-3-30 3965 A Riverside Vail Lake Area, westerly drainage cyn at N base of 'Big' Oak Mtn. 640 Comment
  JOTR28919  Pentagramma triangularis subsp. maxonii La Doux, Tasha 2005-2-7 1155 Riverside Joshua Tree National Park. Above Hayfield Dry Lake 553 Comment
  RSA799081  Peritoma arborea Sarah J. De Groot, Jessica Chu, Loraine Washburn 2013-3-22 6878 Riverside South side of Joshua Tree National Park, Cottonwood Spring 915 Comment
  CAS-BOT-BC77493  Peritoma arborea var. angustata H. M. Hall 1905-4-1 5993 Riverside Near Indio 60 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
  JEPS34853  Perityle emoryi Marjorie Clary 1934-3-3 Riverside 18 mi w Indio; Carrizo Canyon 304 Comment
  RSA25474  Perityle emoryi C. L. Hitchcock 1940-3-31 5893 Riverside Between Cottonwood Spring and Pinto Basin. Comment
  RSA471860  Perityle emoryi E. Crow 1929-2-24 183 Riverside Mesa above Andreas Canyon, Colorado Desert. Comment
  RSA779728  Perityle emoryi Duncan S. Bell 2009-3-8 96 Riverside Arica Mountains: center of mountain range in the vicinity of Priest Mine approximately 2 air miles west of Priest Well or approximately 7 air miles southwest of the ghost town of Rice. 467 Comment
  HSC82745  Petalonyx thurberi R. F. Thorne, W. A. Tilforth 1980-5-28 54191 Riverside San Bernardino Mtns., W-facing slope of Whitewater ridge above old bridge. Comment
  RSA795941  Petalonyx thurberi Duncan S. Bell 2009-4-19 279 Riverside Arica Mountains: west side of range, approximately 2.5 air miles southwest of Priests Well. 391 Comment
  LA49853  Petalonyx thurberi subsp. thurberi A. M. Johnson; 1933-4-28 4246 Riverside along highway about 12 mi. below Palm Springs Comment
  SFV17212  Petalonyx thurberi subsp. thurberi J. W. Dole 1980-11-1 s. n. Riverside Snow Creek road, 1 mile from junction of Highway 111 and Interstate Highway 10. 360 Comment
  POM250764  Petunia parviflora J. C. Roos 1937-6-7 514 Riverside South foot of Jackrabbit Trail, near San Jacinto. Comment
  CAS-BOT-BC326837  Peucephyllum schottii Marcus E. Jones 1930-4-1 s.n. Riverside Shaver's Well Comment
  UCR279461  Peucephyllum schottii A. C. Sanders, Jim Malusa 2017-3-27 43105 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, canyon 12 km NE (46 deg. ) of Bombay Beach, on both sides of the Imperial County line 305 Comment
  SEINET10875353  Peucephyllum schottii A. K. Evans 1976-4-13 Evans 5212 Riverside Desert canyons of Santa Rosa Mountains. Comment
  CHSC8105  Phacelia Edward L. Smith 1958-3-21 362 Riverside Located 6 mi. s of Rice, near Priest's Well. Little Santa Maria Mts. 365 Comment
  JEPS1555  Phacelia brachyloba W. L. Jepson May 17 1901-Jun 1 1901 1282 Riverside near Strawberry Valley; Mt. San Jacinto, San Jacinto Canyon Comment
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Jul 8 2014
  RSA787988  Phacelia brachyloba L. M. Prince, Duncan S. Bell 2009-6-17 570 Riverside Cleveland National Forest. Roadside. Comment
  UCR111556  Phacelia brachyloba Mitch Provance 1999-5-4 1704 Riverside San Bernardino Valley Region, Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  POM145252  Phacelia campanularia McFadden 1928-3-18 s.n. Riverside 15 miles E of Banning, Riverside county. Comment
  POM263071  Phacelia campanularia J. C. Roos 1937-4-18 678 Riverside Whitewater, Colorado Desert. Comment
  UC1069364  Phacelia campanularia H. S. Yates 1937-3-24 6476 Riverside near mouth of Deep Canyon; Thermal Quadrangle Comment
  RSA0106605  Phacelia campanularia subsp. campanularia Robert F. Thorne 1995-3-29 63030 Riverside White Water Canyon. 600 Comment
  UCR225710  Phacelia cicutaria var. hispida A. C. Sanders 2011-3-30 38917 Riverside Peninsular Range; SE edge Gavilan Hills, along north side of Hwy 74 at Riverside Street, just outside city limits of Lake Elsinore 479 Comment
  UCR104628  Phacelia ciliata D. E. Bramlet 1993-4-13 2324 Riverside Approx. 61 m south of the existing Lake Matthews access road, c. 549 m north of Cajalco Road, in the 'Cajalco bend' area, 1.2 km west of Lake Matthews 434 Comment
  SFV5027  Phacelia crenulata F. M. Ball 1964-1-4 s. n. Riverside Colorado Desert Wide bench on right side of Rt. 74 to Hemet, about 7 miles south of Palm Desert. 335 Comment
  RSA49196  Phacelia distans P. A. Munz 1949-4-13 13047 Riverside above Cottonwood Springs, west end Eagle Mts. Colorado Desert 1098 Comment
  RSA500213  Phacelia distans Steve Boyd, Tim Ross, L. Arnseth 1989-5-7 3530 Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  RSA770840  Phacelia distans Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4685 Riverside Transverse Ranges; San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm)., Between N33.97538, W116.65161 and N33.97538 and W116.65122 604 Comment
  SD119904  Phacelia distans Louis B. Ziegler 1978-4-12 581 Riverside Lower foothills of the San Jacinto Mountains in the San Jacinto Valley. 472 Comment
  UC1518621  Phacelia distans Robert F. Thorne, Drs. Fosberg, Sachet, and Herbst 1983-4-23 55483 Riverside sandy wash along river where road crosses river below fish hatchery (ca 4 mi n of Whiatewater Post Office); San Bernardino Mts., Whitewater River 640 Comment
  UCR154386  Phacelia distans A. C. Sanders, Mike Misenhelter 2005-6-15 30975 Riverside Peninsular Range; Sage-Aguanga Region, 2 miles NNE of Vail Lake, 4 miles SSW of Sage, Denise Rd. at Bonita Rd., near Calle de Nino, 1.2 mi. NE of summit of (Big) Oak Mtn., SW of Rocky Ridge and SE of Black Hills 671 Comment
  UCR243128  Phacelia distans Kate Kramer 2012-5-25 263 Riverside Along Highway 243, between Mt. Edna Road and Vista Grande fire station. 1387 Comment
  JEPS24830  Phacelia minor Peter M. Ray 1949-3-12 1353 Riverside 2 mi w Whitewater (n side of valley); Coachella Valley 457 Comment
  POM158465  Phacelia minor P. A. Munz 1927-5-20 10827 Riverside 10 miles S. of Hemet. Comment
  RSA180249  Phacelia minor E. W. Lathrop 1965-4-4 5617 Riverside 8 miles west of Murrieta Comment
  RSA586128  Phacelia minor D. L. Banks 1995-4-11 171 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 Dripping Springs Trail. 951 Comment
  RSA604  Phacelia minor J. T. Howell 1927-8-2 567 Riverside Near Strawberry Valley, Mt. San Jacinto. 1677 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
  RSA700025  Phacelia minor Scott D. White, Michael Honer 2003-4-25 9100 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
  UCR50414  Phacelia minor D. C. Hawks 1988-3-27 s.n. Riverside between Aguanga and Anza, southeast of intersection of Dove and Sycamore Streets, south of Hwy 371. Tule Creek drainage, 1.75 mi airline northeast of Aguanga 762 Comment
  RSA550341  Phacelia minutiflora Walter Wisura, John Dolan, M. Wall 1992-3-25 4647 Riverside Low Desert: Ford Dry Lake N of I-10 at Hopkins Well. Comment
  UCR41743  Phacelia minutiflora A. C. Sanders, B. Pitzer, D. Charlton, R. & J. Kniffen, J. M. Stewart 1986-3-2 6068 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, c. 1/2 mi. west of Graham Pass Rd., on powerline road 1/2 mi. south of old Hwy 60 (Chuckwalla Road) 134 Comment
  CLARK-A1045-872  Phacelia pachyphylla George K. Helmkamp 1978-6-1 #3 Riverside Santa Ana Mountains Wildomar 7.5'Q Comment
  RSA654550  Phacelia parryi Bruce Albert 1982-4-17 80 Riverside Field north of Santa Rosa road, 5.7 miles east of Lake Mathews Road. Comment
  RSA74795  Phacelia pedicellata F. W. Peirson 1920-2-16 970 Riverside Palm Canyon Stream, Near foot of Alkali Canyon east of Palm Canyon, Riverside County. Comment
  UC63813  Phacelia ramosissima var. ramosissima W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 Riverside San Jacinto Valley 457 Comment
  UCSB5434  Phacelia tanacetifolia Krogen, Roger 1957-1 Riverside 4 mi. S of junction of Hwy. 60-70 at N edge of Orocopia Mts. Comment
  SEINET5499544  Phacelia vallis-mortae H. M. Hall 1897-3-27 415 Riverside Sage Comment
  SD107746  Phalaris aquatica C. W. Tilforth, B. Busenberg 1890-7-17 2022 Riverside open flat at large telephone signal reflector panel, south end of Thomas Mtn. Rd., south of Lake Hemet & west of Hiway 74 Comment
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Feb 4 2013
  UCR76159  Phalaris minor A. C. Sanders 1993-4-1 76159 Riverside Perris-Aguanga Basin Region, western edge of Hemet, 14 acre parcel at NE corner of intersection of Myers St. and Devonshire Ave., 0.75 mile NE of the intersection of Florida Ave (Hwy 74) and Warren Rd, just south of Tres Cerritos 460 Comment
  UC11469 Image available Philadelphus microphyllus var. stramineus H. M. Hall 1901-7 2500 Riverside Vicinity of Tamarack Valley, San Jacinto Mountains Comment
  UC729902  Phleum alpinum Carl B. Wolf 1932-8-5 3956 Riverside 1st real, wet meadow on trail from Tahquitz Valley to San Jacinto Peak head of a fork of Tahquitz Creek; San Jacinto Mts., head of fork of Tahquitz Creek 2743 Comment
  JOTR32532B  Phoenix dactylifera La Doux, Tasha, M. Harding, M. Wheeler, T. Herskovits 2011-4-14 2540 Riverside Joshua Tree National Park. southwest Eagle Mountains; steep rocky drainage approx. 1.5mi east of Cottonwood Canyon and 1.5mi north of park boundary 815 Comment
  RSA792342  Pholisma arenarium Doris Bowers s.n. Riverside Colorado Desert, Algodones Dunes? Comment
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Mar 17 2014
  RSA708428  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 Freeway. West of existing gravel quarry, likely to be proposed for quarry expansion. 585 Comment
  CAS-BOT-BC135072  Phoradendron californicum Del Wiens 1955-10-17 960 Riverside Palms to Pines Highway between Palm Springs and Keen Camp, State Hwy. 74 Comment
  LA209842  Phoradendron californicum N. Dunn; A. M. Martin 1932-3-26 sn Riverside Shavers' Well Comment
  RSA48336  Phoradendron californicum E. K. Balls 1949-4-4 12972 Riverside At Desert Beach on Hwy 111, Colorado Desert. -15 Comment
  GMDRC2525  Phoradendron densum J. Andre, T. La Doux 2007-9-6 8702 Riverside Little San Bernardino Mountains: Little San Bernardino Mountains: approx 5 mi. S. of West Entrance of Joshua Tree Natl. Park.. Elev. 4020 ft. 1226 Comment
  RSA420753  Phoradendron densum E. Crow 1928-11-12 46 Riverside Morongo Valley, Colorado Desert. Comment
  SEINET3073024 Image available Phoradendron densum A. C. Sanders, P. MacKay, L. & P. Lubinsky 1994-10-30 15853 Riverside Catclaw Flat Quad. San Bernardino Mountains; White water River Canyon between Red Dome and Stills Landing, SE of VABM Paw. 850 Comment
  UC1073269  Phoradendron densum George B. Rossbach 1955-4-22 233 Riverside between Juniper Flat and Stubby Spring; Little San Bernardino Mts. 1402 Comment
  LA209830  Phoradendron juniperinum D. Dunn; 1941-1-12 670 Riverside Fern Valley, Idyllwild Comment
  SEINET10689600  Phoradendron libocedri Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-16 Meyer 17 Riverside San Bernardino National Forest. Mix between oak chaparral and pine forest. Next to Lake Fulmor, 17 mi. S on Hwy 243 (off I-10). 1632 Comment
  RSA356998  Phoradendron villosum Robert F. Thorne, Percy C. Everett 1966-10-18 41857 Riverside Santa Rosa Mountains. Comment
  RSA559455  Phoradendron villosum Steve D. Boyd, Tim S. Ross 1992-5-5 7212 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Oak Flats area east of Verdugo Potrero. 732 Comment
  UC51623  Phragmites australis J. B. Davy 1902-4-2 8045 Riverside Salton Comment
  JOTR31882  Physalis crassifolia La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2134 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Rockhouse Canyon; steep-walled canyon and sandy wash along an old road Comment
  JOTR32606  Physalis crassifolia La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-10-13 2670 Riverside Joshua Tree National Park. eastern edge of Cottonwood Mountains, near mouth of Cottonwood Canyon; east of Rte. 11, aprpox. 2.5 miles north of park boundary 711 Comment
  UCR159761  Physalis crassifolia Scott D. White 1999-4-20 7273 Riverside Colorado River Valley, Blythe area, Southern foothills of the Big Maria Mtns, NW of Calif. Hwy 95, c. 7 road mi N of the junction of Hwy 10 and Intake Blvd in Blythe 137 Comment
  UCR269855  Physaria tenella A. C. Sanders, Jim Malusa 2016-3-17 42359 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, along Gasline Road 2.85 miles south of Bradshaw Trail 701 Comment
  UCR167801  Picris echioides T. B. Salvato, Melissa Clemons 2005-6-23 1303 Riverside Peninsular Range; Temescal Valley, Walker Canyon, 1.5 mi due east of Alberhill, N of Hwy I-15 412 Comment
  UCR185119  Pinus contorta subsp. murrayana Naomi Fraga, Et al. 2006-7-11 1712 Riverside San Jacinto Mountains, Mount San Jacinto State Park, Hidden Lake 2652 Comment
  CSUSB922  Pinus monophylla Stanley C. Warner 1956-5-20 s.n. Riverside Palms to Pines Highway, Pinyon Flats Camp Comment
  RSA0119891  Pinus monophylla Duncan S. Bell, Thomas Stoughton 2016-4-12 9224 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 3.5 air miles northwest of Rabbit Peak. 967 Comment
  RSA384373  Pinus monophylla Gale Sphon 1955-5-22 s.n. Riverside Pinon Flats, San Jacinto Mountains. Comment
  CAS-BOT-BC136556  Piperia cooperi W. I. Lester 1895-1-1 s.n. Riverside Field redacted by CAS, contact the data manager for more information Comment
  UCR182103  Pistacia atlantica Tom Chester 2006-3-9 869 Riverside Peninsular Ranges; Santa Ana Mountains region, Santa Rosa Plateau Ecological Reserve: Los Santos Trail, next to tributary to Cole Creek, 0.25 miles (0.4 km) sw of peak 2064 next to Tenaja Truck Trail 591.5 Comment
  UCR240649  Pityrogramma triangularis Tracy Tennant, Mitch Provance 1998-6-16 MOR- 419 Riverside San Bernardino Mtns. Foothills, Morongo Indian Reservation, upper Millard Canyon, north of Cabazon 1098 Comment
  UCR137677  Plagiobothrys G. R. Ballmer 1996-4-10 s.n. Riverside Skunk Hollow, 6 mi. east of Murrieta, on W side of Pouroy Road 457 Comment
  HSC85447  Plagiobothrys canescens Steve Boyd 1986-3-3 1376 Riverside Good Hope Valley; about 5 mi. W of Perris. DePrad St., 0.5 mi. E of Cowie Ave. 488 Comment
  UCR152647  Plagiobothrys canescens A. C. Sanders 2005-4-22 29598 Riverside Gavilan Hills, Gavilan Plateau c. 0.75 air mi. SE of summit of Gavilan Peak 625 Comment
  UCR154641  Plagiobothrys canescens A. C. Sanders, T. B. Salvato 2005-4-28 29769 Riverside Peninsular Ranges, Gavilan Hills; north of Santa Rosa Rd., 1 mi. SW of Ida Leona Mine 625 Comment
  UCR20983  Plagiobothrys canescens A. C. Sanders 1980-5-2 1437 Riverside Peninsular Range; Perris Basin, Motte Reserve; rocky hills 2.5 miles NW of Perris 518 Comment
  UCR230198  Plagiobothrys canescens A. C. Sanders, T. B. Salvato 2011-4-29 39361 Riverside Peninsular Range; Perris-Aguanga Basin Region, Romoland, McLaughlin Rd. east of Palomar Rd., near powerplant and railroad 445 Comment
  UCR139163  Plagiobothrys collinus S. J. Myers 2003-4-22 s.n. Riverside Murrieta Area, hill 1564 between Auld. Rd. and Benton Rd. near Pourroy Rd., south of Alamos School site, north of Tucalota Creek 477 Comment
  UCR230215  Plagiobothrys collinus A. C. Sanders 2011-4-6 38986 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. 1.5 mi. NE (73 deg. ) of Glen Ivy Hot Springs, 0-0.4 mi. NE of I-15 crossing 320 Comment
  UCR99154  Plagiobothrys collinus A. C. Sanders, G. Helmkamp 1997-3-15 19991 Riverside Peninsular Range, Lake Skinner, SE foot of Bachelor Mtn., just north of the lake 600 Comment
  HSC85416  Plagiobothrys collinus var. californicus Steve Boyd 1986-3-9 1389 Riverside Temescal Canyon: Alberhill Mtn., S slope of mtn., just E of claymine area 459 Comment
  LA210029  Plagiobothrys collinus var. californicus John O'Leary; 1975-4-12 346 Riverside Slope of Box Spring Mountain, about 5 mi from summit 609 Comment
  RSA655091  Plagiobothrys collinus var. californicus Scott D. White 2000-4-17 7651 Riverside Menifee / Sun City Area: South of McColl Ave. and east of I-215 freeway. 442 Comment
  RSA0042161  Plagiobothrys jonesii Duncan S. Bell, Evan Meyer 2014-4-2 6511 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; southern section of range; approximately 1 air mile northwest of Canyon Spring. 422 Comment
  RSA791596  Plagiobothrys jonesii D. Silverman 2010-3-30 7888 Riverside East flank of southern McCoy Mountains, 1.8 km W of Black Creek Road, 7 km E of McCoy Peak, and 4.4 km north of the I-10 183 Comment
  UCD120849  Plagiobothrys jonesii Collector unknown 1923-3-26 280 Riverside Tahquitz Wash, nr. Palm Springs. Comment
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Mar 4 2013
  SD140150  Plagiobothrys leptocladus A. C. Sanders 1993-4-5 13698 Riverside Western edge of Hemet, along south side of Devonshire Avenue betwee Old Warren and Earren Roads, southwest of Tres Cerritos and N of Florida 459 Comment
  SD262235  Plagiobothrys leptocladus Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-3-29 317 23 Riverside Elsinore Trough: Periodic eastern shoreline of Lake Elsinore (e.g. 1994), in the City of Lake Elsinore, A+- at the borderline with the Sedco Hills Neighborhood of the City of Wildomar, in open space along west side of Mission Trail at Lewis St. 387 Comment
  UCR97670  Plagiobothrys tenellus A. C. Sanders, G. Waines, B. Ehdaie, A. Aryavand 1997-3-12 19904 Riverside Lake Skinner area, upper Rawson Canyon, 2.5 mi. NNE of Skinner Lake, 1 mi. SW of Crown Valley 595 Comment
  UC1536026  Plagiobothrys undulatus Robert F. Thorne 1973-5-23 45525 Riverside Santa Rosa Plateau Mesa de Colorado 609 Comment
  UCR162939  Plantago elongata Fred M. Roberts, D. E. Bramlet 2005-4-1 6148 Riverside Upper Salt Creek, W of Hemet, parcel between Devonshire and Florida, c. 0.2km N of Florida and 0.2km W San Diego Aquaduct; c. 2km NW Ryn Field 457 Comment
  POM184244  Plantago erecta P. A. Munz 1932-3-24 12021 Riverside North of Elsinore 305 Comment
  RSA388509  Plantago erecta Steve Boyd 1986-5-1 1806 Riverside Perris-Aguanga Basin region SW Perris Basin, Hill west of Skunk Hollow. Comment
  RSA563900  Plantago erecta A. C. Sanders 1993-4-5 13695 Riverside Western edge of Hemet, along S side of Devonshire Ave. between Old Warren and Warren roads, SW of Tres Cerritos and N of Florida Ave. (Hwy 74). 460 Comment
  SDSU18737  Plantago erecta C. Matt Guilliams 2008-2-13 449 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. Just south of edge of mesatop. 426 Comment
  UC173743  Plantago erecta T. S. Brandegee Apr 1901 Riverside Colorado Desert Comment
  UCR182518  Plantago erecta Mitch Provance 2005-5-17 6567 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
  UC2030075  Plantago ovata V. Soza, J. M. Porter, G. D. Wallace 2001-4-2 1097 Riverside Transverse Ranges, Little San Bernardino Mountains region: Mouth of West Wide Canyon, NNW of junction of Dillon Road and Ford Avenue. Comment
  SD258963  Plantago ovata var. fastigiata Sarah J. De Groot, Thomas Stoughton 2016-2-18 7612 Riverside Mecca Hills; side canyon (east fork) of Painted Canyon. 181 Comment
  RSA601098  Platanus racemosa A. C. Sanders 1996-5-1 18140 Riverside San Bernardino Mtns: Morongo Indian Reservation, along dirt road in Hathaway Creek Canyon, N of Banning 793 Comment
  UC527405  Platanus racemosa Carl B. Wolf 1932-5-24 3647 Riverside 1/2 mi below fish hatchery (n base of mt.); San Jacinto Mt., Snow Creek Canyon 548 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
  UCSB2710  Platanus racemosa Haller, John 1950-5-20 Riverside base of San Jacinto Mtns; Hemet-Idyllwild Road; opposite Cranston Ranger Station 609 Comment
  UC855253  Platystemon californicus P. A. Munz and I. M. Johnston 1922-5-20 5457 Riverside Kenworthy; San Jacinto Mts., Kenworthy 1402 Comment
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Mar 25 2011
  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
  POM116974  Pleuraphis rigida Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 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
  UC912655  Pleuraphis rigida H. L. Mason 1928-3-10 4198 Riverside Whitewater River Comment
  HSC66547  Pleurocoronis pluriseta Christopher Davidson 1979-4-4 7706 Riverside Orocopia Mountains, Box Canyon on Box Canyon Rd., 5.9 miles E of Mecca. 305 Comment
  RSA784958  Pleurocoronis pluriseta Duncan S. Bell 2012-2-12 3116 Riverside Mecca Hills: approximately 1.25 air miles north of Box Canyon Road, and approximately 4 air miles southwest of Shavers Well. 256 Comment
  UCR245676  Pleurocoronis pluriseta Duncan S. Bell 2010-4-2 698 Riverside Sonoran (Colorado) Desert, Arica Mountains: along jagged ridgeline of mountain range; in the Palen/McCoy wilderness; on a sand ramp located just below the ridgeline on the eastern side that was trapped between the ridgeline and the steep narrow rocky canyons below it 595 Comment
  SEINET12534743 Image available Pleurocoronis pluriseta H. M. Hall 1905-4-16 5795 Riverside Marshall Canon, 11 km W of Coachella, Colorado Desert, in the Lower Sonoran Zone. 30 Comment
  POM10244  Pluchea odorata E. A. Zumbro 1903-05 s.n. Riverside Riverside Comment
  RSA772056  Pluchea sericea Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4621 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  UCR194223  Pluchea sericea Scott D. White, Angelia Carey 2004-6-4 10482 Riverside San Jacinto Mtn Foothills, San Jacinto River wash and adjacent alluvial benches, near Indian Creek confluence 534 Comment
  SD137945  Poa annua Darin L. Banks 1995-5-3 257 Riverside Cleveland National Firest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco 512 Comment
  RSA526166  Poa annua Steve Boyd, Timothy S. Ross 1990-5-11 4669 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  RSA740611  Poa pratensis Scott D. White, Justin M. Wood 2008-6-19 12260 Riverside Meadows at Baldy Mtn. 1585 Comment
  UCR92252  Polygonum aviculare Scott D. White, M. A. Patten 1995-8-16 3556 Riverside San Jacinto Valley, Just west of Hemet, valley floor and foothills at SE margain of Lakeview Mts. north of Florida Ave. (SR 74) and west of California Avenue 500 Comment
  POM319089  Polygonum aviculare subsp. aviculare Patricia Wilder 1971-5-13 4949 Riverside Prado Flood control Basin; along bank at east end of top of Prado Dam. 213 Comment
  UCR24909  Polygonum douglasii subsp. douglasii A. C. Sanders 1980-7-22 1719 Riverside San Jacinto Mtns, Dutchman's Flat in Bear Trap Canyon about 1 mi (airline) west of Idyllwild. Between Hwy 243 and Foster Lake 1814 Comment
  RSA736662  Polygonum lapathifolium Justin M. Wood 2008-7-16 24 Riverside Gavilan Hills at Temescal Wash, near Olsen Canyon, 'Morgan' property, Alberhill area. Comment
  UCSB62766  Polypodium californicum Kiefer, Lawrence 1963-9-15 Riverside San Jacinto Mtns., N fork San Jacinto River (Dark Canyon). 2133 Comment
  POM48373  Polypodium hesperium P. A. Munz, I. M. Johnston 1924-7-27 8778 Riverside North side of rocks, Dark Canyon, San Jacinto Mountains 2194 Comment
  JOTR37487  Polypogon monspeliensis Hodges, Stephen R., M. Vamstad 2016-3-22 616 Riverside Joshua Tree National Park. Eagle Mountains, South of Eagle Mine, Buzzard Springs Comment
  UC1930060  Polypogon monspeliensis Scott D. White 2004-4-26 10252 Riverside San Jacinto Mountain foothills: Soboba Indian Reservation, Indian Creek Watershed. Comment
  UC39757  Polypogon monspeliensis H. M. Hall June, 1901 2274 Riverside vicinity Strawberry Valley; San Jacinto Mountains, vicin of Strawberry Valley 1615 Comment
  UCR140702  Polypogon monspeliensis A. C. Sanders 2004-5-12 27868 Riverside Elsinore Basin Region, Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek 378 Comment
  RSA11  Polystichum imbricans subsp. curtum J. T. Howell 1927-8-2 571 Riverside Road to Hemet, Mt. San Jacinto. 1372 Comment
  RSA714655  Populus fremontii A. C. Sanders 2004-5-12 27893 Riverside Elsinore Basin Region: Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek. 378 Comment
  UCR72162  Porophyllum gracile Theo Glenn 1991-5-7 91- 93 Riverside Sonoran (Colorado) Desert, Big Maria Mtns, north of Blythe 365 Comment
  CAS-BOT-BC267210  Potamogeton foliosus Steve Boyd 1994-10-14 8387 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, San Mateo Canyon, canyon bottom along San Mateo Creek at confluence with Bluewater Creek 329 Comment
  RSA575894  Potamogeton foliosus Steve Boyd 1994-10-14 8387 Riverside Southern San Mateo Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest. San Mateo Canyon, in canyon bottom at the confluence with Bluewater Canyon 329 Comment
  JEPS44217  Potentilla gracilis var. fastigiata W. L. Jepson 2297 Riverside Tauquitz Valley San Jacinto Mt., Tauquitz Valley 2286 Comment
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Apr 3 2011
  RSA740642  Potentilla gracilis var. fastigiata Scott D. White, Justin M. Wood 2008-6-19 12280 Riverside San Jacinto Mountains: Meadows at Baldy Mtn. 1585 Comment
  RSA0005683  Potentilla wheeleri var. rimicola Philip A. Munz, I. M. Johnston 1924-7-27 8764 Riverside Dark Canyon, San Jacinto Mountains. 2409 Comment
  RSA0107465  Prenanthella exigua Duncan S. Bell, Amanda Turek 2009-3-30 161 Riverside East side of the Arica Mountains; approximately 1.3 air miles west northwest of Priest Well. 381 Comment
  RSA0013888  Proboscidea althaeifolia Jim Andre, Tasha La Doux 2008-9-13 10267 Riverside Chuckwalla Valley: along dirt road approximately 2 mi. N of Desert Center, 0.5 miles W of Tamarisk Golf Course (at Kaiser Rd. Jct.) 234 Comment
  UC2026428  Proboscidea althaeifolia Steve Boyd, Valerie Soza, Tasha LaDoux 1997-10-13 10062 Riverside COLORADO-MOJAVE DESERT TRANSITION, LITTLE MARIA MOUNTAINS: Bajada at southwest end of Rice Valley, along Midland Road, just north of pass between Little Maria and Big Maria mountains. Comment
  CAS-BOT-BC202361  Prosopis glandulosa var. torreyana A. C. Sanders; Tracy Tennant; Jeff Ross 1998-8-20 22223 Riverside San Bernardino Mtns.: Morongo Indian Reservoir, Lion Canyon 671 Comment
  RSA784720  Prosopis glandulosa var. torreyana Duncan S. Bell 2012-3-18 3207 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
  UC16270  Prosopis glandulosa var. torreyana H. M. Hall 1899-5-19 1106 Riverside San Jacinto Lake Comment
  POM296501  Prunus fasciculata Lyman D. Benson 1945-3-29 11631 Riverside Canyon on Palm Spring Rd. Colorado Desert Drainage Area. 671 Comment
  SEINET3077265 Image available Prunus fremontii Dave Hawks 1987-3-3 Riverside Terwilliger Valley, 5 mi SE of Anza. 1280 Comment
  CAS-BOT-BC356344  Psathyrotes ramosissima G. Helmkamp; E. Helmkamp 1998-1-17 2534 Riverside Box Canyon northeast of Mecca and 3.5 miles south of Shaver's Well 243 Comment
  POM126246  Psathyrotes ramosissima Thos. Craig 1927-4-2 61 Riverside Canyon near Hidden Springs. Comment
  SEINET3388635 Image available Psathyrotes ramosissima Lewis S. Rose 1938-12-19 38326 Riverside 6 mi. s. of Cathedral City. 46 Comment
  UC90699  Psathyrotes ramosissima unknown Nov 1891 Riverside Salton Comment
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Sep 11 2011
  POM98745  Psathyrotes ramosissima P. A. Munz 1926-1-31 9963 Riverside Dos Palmas Spring Comment
  RSA180326  Pseudognaphalium biolettii E. W. Lathrop 1965-4-4 5620 Riverside 8 miles west of Murrieta Comment
  RSA799090  Pseudognaphalium biolettii Sarah J. De Groot, Evan Meyer, Abby Hird 2013-3-23 6888 Riverside Joshua Tree National Park, Biodiversity Hunt; north and northwest part of Lost Palms Oasis 988 Comment
  UCR92399  Pseudognaphalium biolettii F. M. Reed 1903-3-10 214 Riverside South Coast; San Bernardino Valley, W base of Box Spring Mtns. 366 Comment
  UCR280957  Pseudognaphalium canescens subsp. microcephalum Mitch Provance, Matt K. Beyers 2017-6-8 617- 12 Riverside Temescal Valley, Indian Wash, SW of I-15, S side of De Palma Rd., about 0.2 mi WNW of inter. with Glen Eden Rd. 366 Comment
  UCR169369  Pseudotsuga macrocarpa June Latting 1972-5-3 s.n. Riverside San Jacinto Mtns, 1 mile east of Keen Summit, 2.5 miles east of Mountain Center (junction of Calif. Hwy 74 and Calif. Hwy 243), a short distance east of Pasadena YMCA camp on the south side of Calif. Hwy 74 1402 Comment
  UCR202415  Psilocarphus brevissimus Karin Cleary-Rose 1998-9-7 s.n Riverside Perris-Aguanga Basin Region; San Jacinto River Valley, west edge of Hemet, east of Warren Rd., south of Esplanade and north of the Tres Cerritos Hills 460 Comment
  UCR114955  Psilocarphus brevissimus var. brevissimus Fred M. Roberts 1992-4-25 4867 Riverside San Jacinto Valley, Upper Salt Creek Watershed adjacent to Hemet, NW corner of California Avenue and Stowe Road, 3.3km ENE Winchester 455 Comment
  JOTR32960  Psilostrophe cooperi La Doux, Tasha, Alice Miller and Victoria Sork 2009-5-3 2711 Riverside Joshua Tree National Park. Little San Bernardino Mountains, west side of Queen Mountain; granitic outcrops with sandy ephemeral wash 1408 Comment
  CAS-BOT-BC346366  Psorothamnus L. R. Abrams 1926-3-26 11117 Riverside between Edom and Garnet, east of San Gorgonio Pass Comment
  HSC47347  Psorothamnus arborescens var. minutifolius Richard Spjut, Judy Adams 1978-11-22 5235 Riverside Colorado Desert: N of Palm Springs along Indian Ave. 0 Comment
  UCR144127  Psorothamnus arborescens var. simplicifolius Scott D. White 2001-4-18 8357 Riverside Sonoran (Colorado) Desert, Coachella Valley, Palm Springs, NE corner of Sunrise Drive and San Raphael Drive 165 Comment
  HSC101260  Psorothamnus emoryi Jim Andre 2012-3-19 21356 Riverside Chuckwalla Valley; along Hwy 177, 8.6 mi. NE of Jct with I-10. 152 Comment
  UCR279354  Psorothamnus polydenius A. C. Sanders, Jim Malusa 2017-3-23 42911 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 2.3 miles east of Iris Pass 787 Comment
  CAS-BOT-BC340860  Psorothamnus schottii Lester Rowntree 1937-5-28 s.n. Riverside Pines to Palms [Palms to Pines] Comment
  HSC25801  Psorothamnus schottii Richard Spjut 1972-3-13 2255 Riverside Colorado Desert: Along Hwy. 74 at the E base of the San Jacinto Mts., 5 mi. W of Palm Desert 610 Comment
  POM122394  Psorothamnus schottii Marcus E. Jones 1926-6-8 s.n. Riverside Whitewater. Colorado Desert. Comment
  SBBG3320  Psorothamnus schottii H. and M. Dearing 1936-12-25 790 Riverside Thousand Palms Cyn Comment
  SEINET2063920 Image available Psorothamnus schottii Norman C. Cooper 1949-4-8 3250 Riverside Mecca Pass E of Indio. 457 Comment
  RSA0034846  Psorothamnus schottii Anstruther Davidson 1926-03 s.n. Riverside Palm Springs Comment
  UCR195094  Pteridium aquilinum A. C. Sanders, Tim Thomas 2008-8-1 35942 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1402 Comment
  RSA543741  Pterostegia drymarioides Steve Boyd, Tim S. Ross, Mike Hammit 1991-5-2 6035 Riverside Vail Lake region, SW and W flanks of Billy Goat Mountain, 3 miles N Hwy 79, 1 mile W of Hwy 371, N of Aguanga. 600 Comment
  SBBG103856  Pterostegia drymarioides M. A. Patten 1992-5-7 92 -28 Riverside Via Vaquero at Via Oesta, ca. 5 km W of Temecula, Santa Rosa Plateau Comment
  UCR251354  Pulicaria paludosa S. J. Myers 2014-5-21 1062 Riverside Western Edge Sonoran (Colorado) Desert, Whitewater, along Whitewater River at I-10 407 Comment
  UC1092709  Purshia tridentata var. glandulosa Eamor C. Nord 1957-5-14 16 Riverside 1 mi e Nightingale 1310 Comment
  RSA0021858  Purshia tridentata var. glandulosa C. P. Cowan 1978-4-25 1259 Riverside San Bernardino National Forest. Pinon Flat Campground. Hwy 74, 8.9 mi (14.2 km) E of jct Hwy 74 and 371. Comment
  UCR278374  Quercus Mitch Provance 2012-9-5 912- 15 Riverside Badlands of Western Riverside County, Potrero Creek, S end of City of Beaumont, E side of Highland Springs Rd., about 100 yards south of intersection with Breckenridge Ave. 755 Comment
  CAS-BOT-BC61822  Quercus agrifolia Samuel B. Parish 1891-11-4 2276 Riverside Rocky Hills, head of Temecula Canon Comment
  SEINET6081013  Quercus agrifolia Louis Wheeler 1964-11-28 8649 Riverside Idyllwild Area. Strawberry Creek between crossing at Circle Drive and Humber Park. Comment
  RSA559451  Quercus agrifolia var. agrifolia Steve Boyd, T. S. Ross 1992-5-5 7217 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Oak Flats area east of Verdugo Potrero. 732 Comment
  SDSU13475  Quercus agrifolia var. agrifolia James C. Dice, Ruth Miller 1987-11-23 753 Riverside Santa Margarita Ecological Reserve: near northeast edge of Reserve, at north edge of Eucalyptus planting. T8S, R3W, Section 22. 366 Comment
  RSA0124382  Quercus chrysolepis Duncan S. Bell 2016-4-16 9336 Riverside Whitewater Watershed; Whitewater Canyon; collecting in Rainbow Canyon, approximately 2.5 air miles east northeast of Kitching Peak. 1023 Comment
  SBBG1302  Quercus chrysolepis M. Lewis 1947-8-26 16 Riverside Dark Cyn 1981 Comment
  UCR123795  Quercus chrysolepis var. nana Steven R. Hill, K. Kramer and family 2001-4-26 33471 Riverside San Jacinto Mtns., San Jacinto Wilderness west of Palm Springs, trails south of visitor building at terminus of Palm Springs Aerial Tramway; vicinity of Long Meadow and higher ridges 2591 Comment
  CAS-BOT-BC86599  Quercus cornelius-mulleri David Dreyer 1968-4-9 s.n. Riverside N slope of hills S of Morongo Valley 609 Comment
  UCD45614  Quercus cornelius-mulleri Frank C. Vasek 1975-9-11 s.n. Riverside In pinyon woodland (desert margin), elevation ca. 5000 feet; South Sheep Mountain, at the South edge of the Deep Canyon Reserve, Riverside County, California. 1524 Comment
  UCR94071  Quercus cornelius-mulleri Scott D. White, D. Haselfeld 1996-7-2 4258 Riverside San Jacinto/Santa Rosa Mtns, Pinyon Flat area, north of Hwy 74, c. 10 road mi east of junction with Hwy 371, west-facing slope of Sugarloaf Mountain and adjacent valley 1402 Comment
  UCSB58807  Quercus cornelius-mulleri Muller, Cornelius; Muller, Katherine 1983-4-15 Riverside 1/2 miles S. of Sage Forest Fire Station 13.3 mi. N of agranga, 13.4 mi S. of Hornet 1639 Comment
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May 21 2016
  SD129201  Quercus engelmannii B. Pitzer 1988-6-8 1046 Riverside Rancho California area, avocado grove south of Avenida del Oro, just past Calle Capistrano Comment
  UCR60995  Quercus engelmannii B. G. Pitzer 1988-6-10 1054 Riverside Santa Ana Mtns., Rancho California area, Carancho Road near intersection with El Prado Road; c. 0.5 - 1 mi. SE of De Luz Road Comment
  SD229179  Quercus palmeri Dick Schwenkmeyer 2012-3-26 663 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
  UCD56592  Quercus palmeri Rudolph Fischer 1965-10-8 5 Riverside East foothills of Thomas Mountain. Santa Rosa range. Ca. 10 miles south of Keen Camp. State Highway 74. 1341 Comment
  UCSB1229  Quercus palmeri Haller, John 1960-5-15 Riverside Vandeventer Flat, 3.3 mi. E of the junc. of the road to Anza on Calif. 74 1371 Comment
  UCD73482  Quercus wislizeni A. C. Sanders; T. Tennant 1997-11-14 21603 Riverside San Bernardino Mtns.: Morongo Indian Reservation, sag pond at SE end of Burro Flats. 1110 Comment
  RSA125969  Quercus wislizeni var. frutescens E. K. Balls, P. C. Everett 1957-11-4 22749 Riverside Snow Creek near old Fish Hatchery, north base San Jacinto Mountains. 701 Comment
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Jun 13 2008
  UCR180107  Rafinesquia californica Mitch Provance 2003-4-26 9899 Riverside Santa Ana River Valley, northern extreme of the La Sierra Hills, on the N-facing slopes and ridges just south of Crestlawn Memorial Cemetery 427 Comment
  VVC105  Rafinesquia californica A. C. Sanders 1997-5-4 20643 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
  RSA650948  Rafinesquia neomexicana Marion P. Harthill 1973-2-17 1573 Riverside Snow Creek, Palm Springs 366 Comment
  RSA80988  Rafinesquia neomexicana G. R. Campbell 1952-4-5 18374 Riverside Colorado Desert, road leading from Highway 60 to 29 Palms [Hwy 62], at junction to Desert Hot Springs 762 Comment
  RSA740940  Ranunculus aquatilis Scott D. White, Justin M. Wood 2008-7-9 12442 Riverside K Flat, from large pond downstream to meadow. 1427 Comment
  POM296  Ranunculus cymbalaria var. saximontanus I. M. Johnston 1917-6-9 1219 Riverside Santa Ana River near Corona Comment
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Nov 20 2011
  UC9432  Ranunculus eschscholtzii var. oxynotus H. M. Hall July, 1901 2414 Riverside San Jacinto Mountains; near the summit 3291 Comment
  RSA0013140  Ranunculus sceleratus var. sceleratus LeRoy Gross, Caitlin Elam 2013-5-14 6073 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
  CDA7749  Raphanus raphanistrum Mike Lahti 2008-3-11 PDR# 1473097 Riverside San Jacinto, 950 N. Ramona Blvd. 0 Comment
  UCR169393  Rhamnus californica subsp. ursina T. B. Salvato, John F. Green 2004-5-27 597 Riverside San Bernardino Mtns, head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1463 Comment
  CLARK-A1528-5196  Rhamnus crocea John C. Roos 1952-2-29 5378 Riverside Reche Canyon 457 Comment
  SDSU13624  Rhamnus crocea W. Miller 1972-8-24 Riverside Northwest corner above small valley. Comment
  UCR120946  Rhamnus crocea A. C. Sanders, Mark Elvin, Julie M. Vanderwier 2002-4-9 24917 Riverside The Badlands, hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 671 Comment
  HSC46613  Rhamnus ilicifolia Christopher Davidson 1977-5-18 5620 Riverside Cleveland National Forest, Bear Springs 1220 Comment
  UCR138608  Rhamnus ilicifolia D. L. Banks 1996-11-7 1195 Riverside Agua Tibia Mountains, NW Palomar Mountains: Pechanga Indian Reservation, east of San Gabriel Church. At the end of the main road in the Reservation, at the spring on the N fork of Pechanga Creek at the E end of the Reservation 494 Comment
  UCR156283  Rhamnus ilicifolia T. B. Salvato, Kent Beaman 2005-5-16 857 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
  UCR270189  Rhamnus ilicifolia A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-2 42405 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, vicinity of lab and old Emerson house site 488 Comment
  VVC445  Rhamnus ilicifolia Markell Kohn 1959-4-20 s.n. Riverside Box Springs Mtns, On Stone Ranch Rd 3 mi SW of intersection of Pigeon Pass/Stone Ranch Rds. 50 yds N of northern most radio station. 579 Comment
  UCR202572  Rhamnus tomentella subsp. cuspidata Scott D. White, Justin M. Wood 2008-7-8 12388 Riverside San Jacinto Mountains, Johnson Meadows 1488 Comment
  RSA787602  Rhododendron occidentale C. H. Tingley 1927-1 741 Riverside San Jacinto Mountains. Comment
  UCSB4805  Rhododendron occidentale Kamb, Peter 1946-5-24 Riverside Hall Canyon, San Jacinto Mts. 1645 Comment
  JOTR35932  Rhus aromatica De Groot, Sarah J., Jessica Chu, Loraine Washburn 2013-3-22 6880 Riverside Joshua Tree National Park. Cottonwood Spring; Fan palm oasis and surrounding slopes. 914 Comment
  RSA125660  Rhus integrifolia R. Weatherby 1950-3-6 1059 Riverside Arlington Hills, near Lake Matthews. 335 Comment
  SD146054  Rhus ovata Mitch Provance 1998-6-6 688 B Riverside Jurupa Mountains: Jensen Quarry, Sunnyside area on west side of Sierra Blvd., just east of corner of 29th St. and Scenic Drive. 305 Comment
  SFV2147  Rhus ovata F. L. McPherson 1959-5-9 Riverside Coastal Sage community southeast of Banning, on northeast slope of mountain. Comment
  UC1979667  Rhus ovata Darin L. Banks, Steve Boyd 1995-3-16 108 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. E of the Dripping Springs Alcove, N slope of Wildhorse Peak, on the Wildhorse Trail. Comment
  UCR22015  Rhus ovata Steve Boyd 1980-9-16 354 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 625 Comment
  CLARK-A1528-119  Rhus trilobata var. anisophylla C. M. Flanagan 1973-5-31 OO 625 Riverside Morongo Indian Reservation 975 Comment
  POM10075  Rhus trilobata var. pilosissima Charlotte M. Wilder 1904-6-11 46 Riverside Wilders Canyon; Jurupa Hills near Riverside. Comment
  CAS-BOT-BC92347  Ribes amarum James R. Shevock 1978-4-26 5905 Riverside Along the northeast side of Pleasants Peak. Santa Ana Mountains, Cleveland National Forest. 1188 Comment
  LA205446  Ribes indecorum W. E. Pequegnat; 1939-4-8 12 Riverside Santa Ana Mountains, Coldwater Trail 731 Comment
  OBI52765  Ribes indecorum A. C. Sanders 1988-1-30 7591 Riverside Eastern foothills of the Santa Ana Mtns ca. midway between Murrieta and Temecula. Los Cerritos Ranch and adj 80 acre property to the NW; N of Cherry St, W of Adams Ave., S of Meadowlark Ridge Ln and Elm St 366 Comment
  RSA439666  Ribes indecorum N. C. Cooper 1947-4-5 2111 Riverside Los Alamos Canyon, Elsinore. 762 Comment
  RSA439667  Ribes indecorum J. S. Stubblefield 1939-3-23 s.n. Riverside Temecula. Comment
  RSA535471  Ribes indecorum Steve Boyd 1992-2-2 6646 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
  UC729694 Image available Ribes malvaceum var. viridifolium Carl B. Wolf 1932-2-11 2651 Riverside 5 mi w Corona (base of Skyline Drive); Santa Ana Mts., Hidden Canyon 405 Comment
  RSA0022093  Ribes montigenum E. C. Jaeger 1921-06 s.n. Riverside Round Valley, San Jacinto Mtns. 2744 Comment
  UCR5949  Ribes nevadense Sue Freeman 1966-4-30 s.n. Riverside San Jacinto Mtns., above top of main waterfall a mile upstream from Banning-Idyllwild road on Fuller Mill Creek 1829 Comment
  RSA50328  Ribes roezlii E. K. Balls 1949-5-4 1348 Riverside 0.5 mile south of Vista Grande Ranger Station, San Jacinto Mts. 1494 Comment
  RSA60417  Ribes roezlii Frank W. Gould 1943-4-18 2137 Riverside 12 miles E [NW] of Idyllwild Comment
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Sep 29 2011
  POM319082  Romneya coulteri Patricia Wilder 1970-10-15 4818 Riverside Prado Dam; by entry gate on west end of top of dam; Chino Hills; Santa Ana River. 183 Comment
  UC1951099  Rumex acetosella Scott D. White, Justin Wood 2008-6-18 12236 Riverside San Jacinto Mountains: Meadow N/W of Keen Camp Summit, S/W of Highway 79. USGS Idyllwild 7.5' Quad. Comment
  RSA466039  Rumex acetosella Louis C. Wheeler 1931-10-3 186 Riverside Strawberry Valley, San Jacinto Mountains. 1585 Comment
  UCR127562  Rumex dentatus A. C. Sanders, T. B. Salvato 2003-5-21 26786 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
  UCR271684  Rumex dentatus Mitch Provance 2011-7-4 17179 Riverside San Bernardino Valley, Northwestern base of the Jurupa Mountains, adjacent to S side of Fontana (technically in an unincorporated part Riverside Co.), retention basin on S side of Philadelphia St., just E of Country Village Rd. 262 Comment
  RSA0014449  Rumex obtusifolius Justin M. Wood 2010-3-4 1421 Riverside Prado Basin: City of Corona. Just NW of sewage treatment dike (intersection of railroad st. and Yorba St.) 160 Comment
  UCR268299  Rumex salicifolius Jim Andre 2012-6-15 30552 Riverside San Jacinto Mountains, west slopes of range along Poppet Flat Road, Poppet Creek canyon, 3.2 miles west of Hwy 243 1022 Comment
  UCR22143  Rumex salicifolius var. denticulatus Steve Boyd 1980-4-13 125 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  CLARK-A1528-595  Salazaria mexicana Charlotte Stocks 1962-6-15 Riverside San Jacinto Mountains 1066 Comment
  CAS-BOT-BC103902  Salix exigua F. R. Fosberg 1932-3-13 8077 Riverside Thousand Palms Canyon, Choachella Valley Comment
  RSA342546  Salix exigua Robert F. Thorne 1980-4-16 54100 Riverside San Bernardino Mountains: Flood plain (wash) along Whitewater River, ca. 3.0 miles N of Whitewater Post Office. 591 Comment
  UC506454  Salix exigua Carl Hedin and Joseph Ewan 1932-7-9 7676 Riverside Chico Creek near Prado (Rincon) below Corona Comment
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Dec 11 2011
  UCR101456  Salix exigua A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22224 Riverside San Bernardino Mtns., Morongo Indian Reservation, Lion Canyon 671 Comment
  UCR113884  Salix exigua Mitch Provance, A. C. Sanders 2000-7-4 2018 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  LA208620  Salix exigua var. exigua Carl Epling; 1927-3-27 sn Riverside Thousand Palms Comment
  POM2035  Salix gooddingii I. M. Johnston 1918-5-30 2018 Riverside Temecscal Canyon (near Lee Lake). 335 Comment
  UC846813  Salix gooddingii I. Johnston 1917-6-5 1235 Riverside fills s of Arlington 365 Comment
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Mar 30 2011
  UC506447  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7679 Riverside Comment
  UC717264  Salix laevigata W. A. Setchell and Victor Duran 1935-4-17 8 a Riverside 14 mi from Hemet (on way to Aguanga) Comment
  RSA552716  Salix lasiolepis Steve D. Boyd, Tim S. Ross, Orlando Mistretta 1992-2-26 6685 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon from Fisherman's Camp downstream to confluence with Bluewater Canyon. 305 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-BC126319  Salix sessilifolia 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
  RSA500103  Salsola australis Steve Boyd, Timothy S. Ross, L. Arnseth 1989-6-10 3667 Riverside Vail Lake area, Temecula Creek canyon below the dam. 459 Comment
  SD262350  Saltugilia australis Mitch Provance, Matt K. Beyers, John Hazlett, Douglas Gordon-Blackwood 2017-4-13 417 62 Riverside Peninsular Ranges: Wildomar, Sedco Hills, along transmission road between Lost Rd and Lake View Rd (Lake Elsinore 7.5'Q) 563 Comment
  RSA0095110  Saltugilia australis Ora M. Clark 1929-3-16 1709 Riverside N of Whitewater. Colorado Desert. Comment
  CAS-BOT-BC232920  Saltugilia latimeri Ynez Whilton Winblad 1937-4-23 s.n. Riverside Palms to Pines Highway, Mount San Jacinto Comment
  RSA124429  Saltugilia splendens Percy C. Everett, E. K. Balls 1958-5-4 23083 Riverside Morongo Canyon. 671 Comment
  CLARK-A1528-3105  Salvia apiana var. compacta John C. Roos 1948-5-8 3824 Riverside Whitewater Comment
  RSA776226  Salvia carduacea Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-29 878 Riverside Haugen Lehmann exit, Pacific Crest Trail up into canyon east of Cottonwood Canyon 793 Comment
  JEPS62650  Salvia columbariae W. L. Jepson 1939-4-17 19137 Riverside near Twin Springs (Temescal Canyon, n end); Temescal Canyon 274 Comment
  POM10197  Salvia columbariae P. A. Munz 1921-4-30 4501 Riverside Pinyon Wells 1220 Comment
  UCR35344  Salvia columbariae L. B. Ziegler 1967-2-20 107 Riverside San Jacinto Valley, N of Lakeview 427 Comment
  UCR87609  Salvia columbariae A. C. Sanders 1994-5-30 14600 Riverside San Bernardino Mountains, north-northeast of Beaumont at Highland Springs, hills north of the end of Bellflower Ave., at Dutton St 950 Comment
  CAS-BOT-BC221088  Salvia eremostachya Peter H. Raven 1958-5-18 13000 Riverside Along State Highway 74, 4.9 miles north-east of Pinon Flats [Pinyon Flat], San Jacinto Mountains Comment
  RSA0123155  Salvia eremostachya Duncan S. Bell, Larry Heronema, Isaac Marck, Evan Meyer 2016-3-22 8965 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in a side canyon off of Martinez Canyon, approximately 7 air miles southeast of the summit of Martinez Mountain. 668 Comment
  UCLA69690  Salvia eremostachya Elizabeth McClintock 1941-5-30 Riverside near Tule Creek; Coyote Canyon Comment
  SEINET244787  Salvia mellifera A. C. Sanders, Mark Elvin; Julie M. Vanderwier 2002-4-9 24942 Riverside The Badlands; hills and canyons west of Laborde Canyon, 1 mile northeast of Eden Hot Springs, SW of Beaumont 610 Comment
  RSA229426  Salvia vaseyi P. A. Munz 1937-5-29 15146 Riverside Dead Indian Creek, north base of Santa Rosa Mts. 457 Comment
  UC25754  Salvia vaseyi H. M. Hall May 1901 1878 Riverside Eastern base, along the borders of the Colorado Desert San Jacinto Mountains Comment
  RSA556504  Sambucus mexicana Julie Greene 1993-4-3 1083 Riverside [Unspecified] 440 Comment
  SD137816  Sambucus nigra subsp. caerulea Darin L. Banks, Steve Boyd 1995-5-3 270 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, north slope of Agua Tibia Mountain, east of the Dripping Springs Alcove Area. 515 Comment
  RSA781360  Sanicula bipinnatifida A. C. Sanders, T. B. Salvato 2011-4-1 38957 Riverside Lake Elsinore, off Baker St. NW of intersection with Bromley Ave., north of second house from intersection, 0.55 km NW of Hwy 74 404 Comment
  UCR34988  Sanicula bipinnatifida N. J. Ziegler 1973-4-9 504 Riverside San Jacinto Mtns, foothills of San Jacinto Mtns, [near Radec] 15 mi. south of Sage, near Sage/Aguanga Rd. 765 Comment
  CLARK-A1528-1469  Sarcostemma hirtellum John C. Roos 1937-4-18 Riverside Colorado Desert Comment
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Mar 3 2014
  UCR89695  Sarcostemma hirtellum J. M. Stewart 1990-10-28 666 Riverside Sonoran/Colorado Desert, canyon on south side of Orocopia Mtns. Comment
  RSA192333  Satureja chandleri E. W. Lathrop 1966-5-11 6287 Riverside 3 miles SW of Murrieta on the De Luz Road, first canyon to the right of the road. Comment
  SD114967  Satureja chandleri Earl W. Lathrop 1966-5-11 6287 Riverside 3.0 miles west of Murrieta on the De Luz Road. Comment
  UCD93090  Schismus arabicus Ellis W. Van Gorder 1963-2-18 s.n. Riverside Colton. Comment
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Jun 8 2013
  UCR112956  Schismus barbatus B. G. Pitzer 1998-3-1 3547 Riverside Lakeview Mtns, Maze Stone county historical marker & picnic area, E side of mtns, on W side of Reinhardt Canyon 610 Comment
  CAS-BOT-BC111575  Schoenoplectus americanus W. I. Follett; E. B. Follett 1966-4-20 s.n. Riverside Pond east of Dos Palmas Spring. Comment
  SBBG87827  Schoenoplectus americanus A. C. Sanders with Pitzer, Charlton, Kniffen 1986-3-3 6093 Riverside Corn Spring, wash below the spring and wash and rocky slopes to the S; Chuckawalla Mtns 487 Comment
  CAS-BOT-BC111456  Schoenoplectus californicus Ira L. Wiggins 1937-2-19 8572 Riverside Tule swamp 1/2 mile north of Palo Verde. Comment
  RSA0105838  Scirpus acutus Alan Romspert 2000-7-28 s.n. Riverside 60 Fwy Bridge and Santa Ana Riverbed transect. Comment
  UC483743  Scirpus americanus F. R. Fosberg 1932-3-13 8079 Riverside Coachella Valley , Coachella Valley (Thousand Palms Canyon) Comment
  POM10106  Scrophularia californica subsp. floribunda Charlotte M. Wilder 1904-4-30 139 Riverside West Riverside. Comment
  UCR121248  Scrophularia californica subsp. floribunda Steve Boyd, C. Boyd, K. A. Boyd, Richard Noyes, L. Arnseth 1988-5-28 2267 Riverside San Jacinto Mtns, Cahuilla Mountain, west of Anza, along hiking trail, mostly along the crest 1700 Comment
  RSA740788  Scutellaria bolanderi subsp. austromontana Scott D. White, Justin M. Wood 2008-7-9 12414 Riverside San Jacinto Mountains: Johnson Meadow. 1415 Comment
  UCR202598  Scutellaria bolanderi subsp. austromontana Scott D. White, Justin M. Wood 2008-7-9 12439 Riverside San Jacinto Mountains, K Flat, from large pond downstream to meadow 1463 Comment
  SBBG93065  Scutellaria mexicana A. C. Sanders 1989-9-19 9502 Riverside 1.75 km S of Tabaseca Tank, along the wash above "Tabaseca Target"; Chocolate Mtns Aerial Gunnery Range 680 Comment
  UCSB10512  Scutellaria mexicana Haller, Norman 1953-5-24 Riverside 11 miles So. of Palm Springs; Indio Rd; Palms to Pines Hiwy. 74 914 Comment
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Nov 19 2014
  POM47007  Scutellaria siphocampyloides Mary F. Spencer 1919-5-18 1194 Riverside Idyllwild, San Jacinto Mountains 1616 Comment
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Mar 21 2011
  RSA160552  Scutellaria siphocampyloides John Olmsted 1959-6-23 660 Riverside Reservoir Hill at Desert Sun School near Idyllwild. 1646 Comment
  SD137719  Scutellaria tuberosa Darin L. Banks, Steve Boyd 1995-5-9 387 Riverside Agua Tibia Wilderness Area, north face of Agua Tibia Mountains, the Dorland Mountain area, west of the Dripping Springs Alcove Area, west of Woodchuck Campground. 701 Comment
  UCR107782  Secale cereale D. L. Banks 1997-5-5 2026 Riverside Agua Tibia Mtns, NW Palomar Mtns: Pechanga Indian Reservation, north of casino, approximately 100 m south of the intersection of Pala Road and Wolf Valley Road 335 Comment
  VVC2879  Selaginella bigelovii Tim Thomas, P. J. MacKay 2010-4-12 5053 Riverside San Bernardino Mtns, Whitewater River; Mouth of Catclaw Flat, at the Paw. 878 Comment
  CAS-BOT-BC62080  Selaginella eremophila John Thomas Howell 1931-6-5 6650 A Riverside Palm Canyon Comment
  UCR234816  Selaginella eremophila Jim Andre, Glenn L. Clifton 2011-2-22 17481 Riverside Coachella Valley, 1.2 mi due south of Windy Point (at Hwy 111, just southwest of 'The Cove' housing development near Blaisdell Creek, at base of San Jacinto Mountains 320 Comment
  CAS-BOT-BC62253  Selaginella watsonii P. A. Munz 1922-7-7 6045 Riverside Summit of San Jacinto Peak 3285 Comment
  RSA206253  Selaginella watsonii Reid V. Moran 1968-8-3 15356 Riverside 1 mile NW of Toro Peak. 2250 Comment
  RSA684101  Selaginella watsonii Joseph Andorfer Ewan 1930-9-1 314 Riverside Summit of San Jacinto Mountain. 3294 Comment
  UC729894  Selaginella watsonii Carl B. Wolf 1932-8-5 3976 Riverside summit San Jacinto Peak; San Jacinto Mts. 3293 Comment
  UC50350  Senecio californicus H. M. Hall March 1903 3721 Riverside vicinity Riverside 609 Comment
  CDA8634  Senecio flaccidus var. douglasii T. C. Fuller 1958-9-23 2199 Riverside R. 79, 2 miles west of Aguanga. 0 Comment
  RSA472989  Senecio flaccidus var. douglasii I. W. Clokey 1935-8-21 6777 Riverside Keen Camp P.O. 1350 Comment
  RSA515199  Senecio mohavensis Steve Boyd, Orlando Mistretta 1986-3-13 1473 Riverside West side Palen Mts.: NE of Desert Center. Comment
  RSA522715  Senecio vulgaris Steve Boyd, Timothy S. Ross, Laurel Arnseth 1990-3-29 3901 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
  RSA501017  Senecio vulgaris Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-1 3136 Riverside Vail Lake area, ridge-top of volcanic substrate w/clay soil, 2 mi W of dam, at edge of escarpment E of Pauba Valley. 518 Comment
  UCR275585  Sesuvium verrucosum T. B. Salvato 2005-6-13 605- 9 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
  RSA728654  Setaria adhaerens R. E. Riefner 2005-12-30 5 -793 Riverside City of La Sierra; Gramercy Pl. near La Sierra Ave. 227 Comment
  UCR91056  Sibara virginica G. R. Ballmer 1996-4-10 s.n. Riverside Skunk Hollow, 6 mi. east of Murrieta, on W side of Pouroy Road 457 Comment
  RSA0045151  Sida leprosa Andrew Haimov, April Sleigh 1992-5-26 99 Riverside East side of Davis Road, next to San Jacinto river, 1 mile north of Ramona Expressway, San Jacinto Wildlife Area. Comment
  UC871473  Sidalcea malviflora subsp. sparsifolia P. A. Munz, I. M. Johnston 1922-5-19 5441 Riverside 1 mi above Garner Ranch (Hemet Valley); San Jacinto Mts., Hemet Valley 1386 Comment
  UCR231768  Silene gallica John F. Green 2008-4-21 02- 02 Riverside Peninsular Range, south edge of Perris, drainage way between housing tracts, west of Goetz Rd. and east of Alabaster Loop 450 Comment
  RSA180462  Silene gallica E. W. Lathrop 1960-6-8 4904 Riverside 14 miles west of Murrieta. Comment
  RSA525700  Silene laciniata subsp. major Steve Boyd, Timothy S. Ross 1990-5-11 4638 Riverside Vail Lake area, Arroyo Seco drainage, canyon bottom at N base of Wild Horse Peak, SE of Dripping Springs campground of Cleveland National Forest. 579 Comment
  UC120158  Silene parishii Dr. A. Davidson Riverside Mt. San Jacinto Comment
  UCSB37823  Silene verecunda Sanders, A. 1980-7-18 Riverside Thomas Mountain; Thomas Mtn. campground to the summit at the lookout; T 6S R 3E, W1/2 sec. 28 2072 Comment
  CAS-BOT-BC202943  Simmondsia chinensis S. B. Parish; W. F. Parish 1884-4-1 9 Riverside Agua Caliente Comment
  JEPS40195  Simmondsia chinensis W. L. Jepson 1359 Riverside Palm Canyon of San Jacinto to Van de Venter's Ranch; Palm Canyon of San Jacinto Comment
  POM307279  Sisymbrium altissimum Henry J. Ramsey, Henry J. Ramsey 1937-5-30 2140 Riverside Palms to Pines Highway. Comment
  OBI52710  Sisymbrium erysimoides A. C. Sanders 1988-1-18 7589 Riverside Riverside. W end of the Box Springs mts on S facing slopes of Sugarloaf Peak 579 Comment
  UCD115451  Sisymbrium erysimoides A. C. Sanders 1987-4-7 7045 Riverside Riverside, vacant lot on the N side of Spruce Street between Rustin and Canyon Crest Streets. 304 Comment
  CSUSB555  Sisymbrium irio Nancy Robb 1966-3-3 Riverside Grassy hillside at end of Big Springs Road, Riverside, CA, about 50 yards beyond railroad tracks. 259 Comment
  RSA614405  Sisymbrium orientale D. L. Banks 1997-3-16 1538 Riverside NW Palomar Mountains, Agua Tibia Mountains: North face of Dorland Mountain, the Dorland Mountain Arts Colony along the circular drive that runs around the north side of the compound. 567 Comment
  SD140141  Sisymbrium orientale Scott White 1993-4-22 1222 Riverside North Alberhill Ranch, in hills north of Walker Canyon 490 Comment
  UCR261168  Sisymbrium orientale A. C. Sanders, Katie Young, John Hale 2015-4-22 41598 Riverside San Gorgonio Pass, San Gorgonio River wash, SE of Cabazon, east of Elm St., c. 2 km south of I-10, 1 km NW (303 deg. ) of One Horse Spring 459 Comment
  CAS-BOT-BC135369  Sisyrinchium L. R. Abrams 1926-3-27 11136 Riverside Between Redlands and Banning at junction of Wildwood Canyon Road Comment
  POM1760  Sisyrinchium bellum I. M. Johnston 1918-4-27 1856 Riverside Temecula. 305 Comment
  RSA366996  Sisyrinchium bellum M. B. Dunkle 1933-7-22 3740 Riverside Tahquitz Valley. 2317 Comment
  RSA651322  Solanum douglasii N. R. Zabriskie, Walter Zabriskie 1972-3-27 473 Riverside ''North Canyon'', Andreas Canyon watershed, east slope San Jacinto Mts. 366 Comment
  UC1537404  Solanum douglasii Gordon H. True Jr. 1935-4-1 195 Riverside Box Springs Comment
  UCR176696  Solanum douglasii R. D. Goeden 1966-1-20 s.n. Riverside Riverside, UCR Campus, near reservoir 366 Comment
  SEINET7262442