Search Results — 2000 specimen records retrieved (1904 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/consortium/).
 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
  CSUSB1069  Abronia villosa Dave Cerf 1971-4-18 Riverside White Water; Painted Hill- 2 miles north of White Water Canyon. 396 Comment
  RSA650088  Abronia villosa Toppenberg 1961-5-5 s.n. Riverside [Highway] 74, Palms to Pines. Comment
  SBBG1866  Abronia villosa H. and M. Dearing -Mar-1926 197 Riverside near Salton Sea Comment
  RSA461188  Abronia villosa var. aurita Elizabeth A. White 1928-04 s.n. Riverside Colorado desert near Banning. Comment
  SEINET946023  Abronia villosa var. aurita G. Yatskievych, K. McCrary 1984-1 84 -118 Riverside State Route 74 at Pyramid Peak Road (to Thomas Mountain). 1463 Comment
  RSA0056450  Abronia villosa var. aurita I. W. Clokey, E. G. Anderson 1935-4-5 6609 Riverside Hemet. 500 Comment
  JOTR31231  Abronia villosa var. villosa La Doux, Tasha, Alice Miller, G. Clifton 2009-4-9 2015 Riverside Joshua Tree National Park. Pinto Basin; (Stop 5) sandy fans leading to Pinto Wash 357 Comment
  RSA682171  Abronia villosa var. villosa Steve Boyd, Amber Maurice, Pesach Lubinsky, Lel Lubinsky 2003-4-17 10468 Riverside East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  RSA776904  Abronia villosa var. villosa Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-5 964 Riverside Blythe-Rice Road, East/Northeast of Arica Mountains on Blythe-Rice Road, about 1 mile south of railroad crossing. 243 Comment
  JEPS64734  Acacia greggii W. L. Jepson and H. M. Hall 1901-5-2 1379 Riverside Palm Canyon and return to Van Deventer's Palm Canyon Comment
  SEINET8081480 Image available Acacia greggii Leila M. Shultz, John S. Shultz 1985-1 8270 Riverside Chuckawalla Valley Sand dunes, east of the Chuckawalla Mountains 122 Comment
  UC56451  Acacia greggii H. M. Hall May 17 1901-Jun 1 1901 1849 Riverside Palm Canyon, (Journey) from Riverside to Santa Rosa Peak and Palomar Palm Canyon 457 Comment
  JOTR16556  Acamptopappus sphaerocephalus var. sphaerocephalus Baker, James K. & Baker, Ilisa T. 1966-6-17 s.n. Riverside Joshua Tree National Park. COVINGTON FLATS Comment
  RSA416167  Acamptopappus sphaerocephalus var. sphaerocephalus Robert Gustafson 1980-5-5 1575 Riverside Whitewater Canyon Road, 0.4 of a mile from the junction with Interstate 10. Whitewater Canyon wash. 610 Comment
  UC1117702  Achnatherum speciosum A. A. Beetle 1946-6-10 4387 Riverside Mt. San Jacinto San Jacinto Mts., Mt. San Jacinto 762 Comment
  JOTR28927  Achyronychia cooperi La Doux, Tasha 2005-3-1 1163 Riverside Joshua Tree National Park. Between Sand Hills and Main Road to Cottonwood Comment
  SBBG119997  Acmispon brachycarpus A. C. Sanders, K. Volansky 2005-3-17 29213 Riverside French Valley, SE of Winchester Rd (Hwy 79) between Thompson Rd and Benton Rd, ca. 0.5 mi NE of Adobe Spring, near San Diego Aqueduct 412 Comment
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Apr 2 2011
  SD185219  Acmispon glaber var. brevialatus A. C. Sanders 2005-5-4 29838 Riverside Gavalin Hills near Riverside, ca. 1.0 km east and southeast of Gavilan Peak. 625 Comment
  SDSU12235  Acmispon glaber var. brevialatus Tahirih Linz, M. G. Simpson 2000-4-1 3 Riverside Comment
  GMDRC6566  Acmispon heermannii var. heermannii J. M. Andre 2012-6-15 30522 Riverside San Jacinto Mountains: along Hwy 243, 8.6 mi. south of Interstate 10 (Banning), just northeast of Hungry Hollow and Poppet Flat; SB Natl. Forest 1309 Comment
  UCR279414  Acmispon maritimus var. brevivexillus A. C. Sanders, Jim Malusa 2017-3-25 42990 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Arroyo Seco, 3.5-4 km south of Augustine Pass, 100-200 m S of Bradshaw Trail, c. 1.5 km N of Imperial Co. line 652 Comment
  UCD104470  Acmispon strigosus Nancy Ryan Zabriskie; Walter Zabriskie 1972-6-18 527 Riverside Along Fire Road S of S end of Marion Ridge Rd., Pine Cove, Idyllwild, San Jacinto Mtns. 1920 Comment
  UCR234760  Acourtia microcephala A. C. Sanders, John F. Green 2012-6-25 40311 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon near Hostettler Rd. south of I-15, narrow canyon draining from vicinity of Palomino Creek Dr. at end of Calendula St. 387 Comment
  CAS-BOT-BC139863  Adenostoma sparsifolium Carl Epling 1931-10-4 s.n. Riverside On road between Hemet and Strawberry Valley, San Jacinto Mts. Comment
  CAS-BOT-BC139864  Adenostoma sparsifolium D. E. Breedlove 1961-8-5 947 Riverside At junction of Riverside Highway 1 and State Highway 74; San Jacinto Mountains 1524 Comment
  RSA453179  Adenostoma sparsifolium H. S. Gentry 1939-10-7 4654 Riverside Dripping Springs. Comment
  RSA453185  Adenostoma sparsifolium Bonnie C. Templeton 1937-5-17 4400 Riverside Along Palms to Pines Highway on S side of San Jacinto Mountains. Comment
  SBBG113412  Adenostoma sparsifolium D. Wilken with E. Painter 2000-11-4 15869 Riverside St Hwy 71, ca. 4 mi E of Anza, N of Burnt Valley, SE base of Thomas Mtn 1400 Comment
  RSA535476  Adiantum jordanii Steve Boyd, Timothy S. Ross, Orlando Mistretta 1992-2-2 6654 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness of the Cleveland National Forest. Lower half of Tenaja Cyn, especially about Fishermans Camp. Comment
  UC36749  Agnorhiza ovata H. M. Hall June 1901 2170 Riverside Thomas Valley San Jacinto Mts. 1371 Comment
  RSA741208  Agoseris heterophylla Scott D. White, Justin M. Wood 2008-5-15 11959 Riverside San Jacinto Mountains: Garner Valley, NW of Fobes Ranch Rd and NE of Hwy 74, valley bottom. 1357 Comment
  POM114051  Agrostis exarata Marcus E. Jones 1924-8-29 s.n. Riverside Idyllwild, San Jacinto Mountains. Comment
  UC36941  Agrostis idahoensis H. M. Hall 1897-8-10 784 Riverside Tauquitz Valley San Jacinto Mountains, Tauquitz Valley 2651 Comment
  UCR2131  Agrostis viridis F. M. Reed 1903-6-5 171 Riverside South Coast; San Bernardino Valley, Riverside, wet ground at outlet of lake in Fairmont Park 238 Comment
  RSA559337  Aira caryophyllea Steve Boyd 1992-5-15 7405 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 Trail, west of Round Potrero. 671 Comment
  UCR220306  Albizia julibrissin Bill Wagner 2005-10-7 s.n. Riverside Peninsular Range; Gavilan Hills Region, Cajalco Flood Control Basin site (proposed, since constructed), at NE corner of El Sobrante Rd. and Cajalco Rd. 447 Comment
  RSA90264  Alhagi camelorum W. T. Sevingle, A. B. Stout 1922-11-15 s.n. Riverside Indio, Coachella Valley Comment
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Aug 6 2013
  UCD117504  Aliciella latifolia James Henrickson 1963-3-29 1198 Riverside 9 miles E of Mecca, along Highway 195. 182 Comment
  RSA214389  Allenrolfea occidentalis L. C. Wheeler 1931-11-26 377 Riverside Salton Sea, 2 miles SE Salton Bench Mark. -76 Comment
  CAS-BOT-BC385085  Allionia incarnata D. B. Dunn 1946-2-23 1985 Riverside In Grotto Canyon Comment
  CAS-BOT-BC434481  Allionia incarnata Carl B. Wolf 1932-4-28 3073 Riverside Colorado Desert. Chuckwalla Valley. 20 mi. West of Blythe on the Mecca Road. 121 Comment
  CAS-BOT-BC434482  Allionia incarnata Carl B. Wolf 1932-4-27 3002 Riverside Colorado Desert. 17 mi. E. of Mecca, on Blythe Road. 152 Comment
  CAS-BOT-BC500427  Allionia incarnata A. C. Sanders; Jim Malusa 2015-3-11 41396 Riverside Sonoran (Colorado) Desert: Chocolate Mountains, Gasline Rd at jct with rd to Observation Point Slats, US Navy Chocolate Mts Aerial Gunnery Range 723 Comment
  UCD77309  Allionia incarnata Robert E. Preston 1997-11-11 1062 Riverside east edge of Palo Verde Mesa 99 Comment
  UCD98019  Allionia incarnata Geoffrey Levin 1976-10-17 1187 Riverside Box Canyon, about 11 mi. east of Mecca. 91 Comment
  UCR169942  Allionia incarnata Scott D. White, Jennifer H. Jones 2005-4-21 10942 Riverside Sonoran Desert, Eastern Coachella Valley. Bajada beneath Mecca Hills, just east of Coachella Canal 49 Comment
  UCR87152  Allium ampeloprasum Steve Morgan 1995-5-18 s.n. Riverside Garden of Edith McKenzie, 22918 Pahute Drive, Moreno Valley Comment
  CAS-BOT-BC131985  Allium haematochiton Steve Boyd; Aydee Virgen 2004-4-13 10859 Riverside Peninsular Ranches; Santa Ana Mountains region: San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon Comment
  CAS-BOT-BC536069  Allium haematochiton Youssef C. Atallah 2016-4-27 s.n. Riverside San Bernardino Mtns. Foothills: Banning, Bluff S., c. 1 mile beyond the end of San Gorgonia Ave., c. 2.1 mi N of I-10 Fwy 882 Comment
  SBBG55753  Allium haematochiton D. Keil, M. McLeod 1979-3-18 12872 Riverside St Hwy 71, Alberhill Junction Comment
  SEINET12049414  Allium hyalinum B. C. Templeton 1930-1 1484 Riverside N of Gavilan[????]? 550 Comment
  UCR142192  Allium munzii June Latting 1979-5-4 s.n. Riverside Gavilan Hills, Harford Springs County Park 610 Comment
  UCR42429  Allium munzii Steve Boyd 1986-4-10 1641 Riverside Peninsular Range, Gavilan Hills region, Temescal Canyon. De Palma Road between Indian Truck Trail & Horsethief Canyon, 1.2 mi east of the Indian Truck Trail exit of Hwy I-15. 372 Comment
  UCR836  Allium peninsulare J. E. Dimitman 1957-5-18 s.n. Riverside Peninsular Range; San Jacinto Mtns., Bautista Canyon Wash 793 Comment
  UC1929733  Allium praecox Scott D. White, Justin Wood 2008-3-25 11772 Riverside Perris / Elsinore Basin: Foothills of Gavilan Hills at Temescal Wash, near Olsen Canyon. Morgan Property, Alberhill area. Comment
  UCR44196  Allophyllum divaricatum A. C. Sanders 1986-6-1 6548 Riverside San Jacinto Mountains, Trail toward Spitler Peak from 'Hurkey Creek Camp to Bonita Vista' [=Apple Canyon] Road 1829 Comment
  VVC369  Allophyllum divaricatum A. C. Sanders, J. Mac 1997-5-4 20633 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
  UCR54451  Alnus rhombifolia A. C. Sanders, E. J. Lawlor 1988-10-22 8726 Riverside Santa Rosa Mtns, Pinyon Flats Area, along Horsethief Creek where the trail from the Dolomite Mine Crosses. 1100 Comment
  RSA487826  Amaranthus albus A. C. Sanders 1988-11-6 8741 Riverside Coachella Valley, W side of Hwy 86, 6.25 mi. S of it s junction with hwy 111 in Coachella and 3.85 mi. n of Valerie Jean, 0.55 mi. N of ave 60. -11 Comment
  RSA702047  Amaranthus palmeri Scott D. White, Angelia Carey 2004-9-16 10756 Riverside Roadside, intersection of Soboba Road and Castile Canyon Rd. 509 Comment
  UC1929936  Ambrosia acanthicarpa Scott D. White 2003-10-9 9826 Riverside San Jacinto Mountains: Pine Cove area. Dutch Flat. San Jacinto Peak 7.5' Quad. Comment
  UCR239599  Ambrosia acanthicarpa O. F. Clarke 2004-5-26 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River near the old Salt Lake Railroad bridge 215 Comment
  UCD128686  Ambrosia confertiflora K. Esau 1935-6-20 s.n. Riverside Road to Beaumont. Comment
  RSA416963  Ambrosia dumosa N. C. Cooper 1949-4-8 3234 Riverside Mecca Pass east of Indio. 548 Comment
  RSA457761  Ambrosia dumosa Steve Boyd, Timothy S. Ross, L. Arnseth, D. Nordin, Richard Noyes, S. Meury 1988-3-10 2124 Riverside N. end of Palen Mtns, 2 mi west of Palen Pass. 300 Comment
  UC1539707  Ambrosia dumosa Chas. B. Fiker 1946-4-18 3417 Riverside w side Colorado Desert Comment
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Mar 23 2014
  UCR41603  Ambrosia dumosa A. C. Sanders, D. Charlton, B. Pitzer, J. M. Stewart 1986-3-1 6025 Riverside Sonoran (Colorado) Desert, Hayfield Lake, NW end of the lake c. 0.5 mi SW of the pumping station 412 Comment
  HSC47331  Ambrosia ilicifolia Richard Spjut, C. E. Edson 1978-5-6 5024 Riverside Colorado Desert; N face of Chuckawalla Mountains, ca. 2.7 miles south of Desert Center 335 Comment
  POM10301  Ambrosia psilostachya Anonymous 1903-10-19 385 Riverside Old stewart Ranch. West Riverside Comment
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Apr 7 2011
  UCR34911  Ambrosia psilostachya L. B. Ziegler 1967-9-18 247 Riverside San Jacinto Mtns, Bautista Canyon 673 Comment
  SD229059  Ambrosia salsola Dick Schwenkmeyer 2012-5-22 725 Riverside Snow Creek, north base of Mt. San Jacinto, approx. 4 miles south of intersection of highways 10 and 111 511 Comment
  UCD128886  Ambrosia salsola Nancy Ryan Zabriskie; Walter Zabriskie 1971-2-15 271 Riverside near entrance gate, Andreas Canyon Club, South Palm Canyon Drive, Palm Springs. 167 Comment
  SEINET10908529  Ambrosia salsola David B. Dunn, Howard Brown 1947-1-12 Dunn 2834 Riverside Pushawalla Canyon, Indio Hills. In dry wash. Comment
  RSA92737  Ammannia coccinea J. C. Roos 1952-5-16 5672 Riverside 1 mile SE of Perris, San Jacinto river bottomlands. 427 Comment
  RSA0089935  Amsinckia menziesii A. C. Sanders 2004-5-12 27859 Riverside Elsinore Basin Region: Alberhill Mountain, northwest foot near Lake St. at Alberhill. 378 Comment
  SEINET238668  Amsinckia menziesii A. C. Sanders 1998-1-15 21644 Riverside Lake Skinnder area: along old Rawson Road just north of Crown Valley above Diamond Valley at waterline of proposed res 518 Comment
  RSA0089921  Amsinckia menziesii var. menziesii D. L. Banks, Victor Steinmann 1997-3-13 1417 Riverside NW Palomar Mountains, Agua Tibia Mountains: In the Redhawk Housing Development, north of the Pechanga Indian Reservation. The hills south of the intersection of Marge Place and Tehachapi Pass (south of Redhawk Parkway). 378 Comment
  UCR180049  Amsinckia retrorsa Mitch Provance 2005-5-18 9807 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
  RSA779783  Amsinckia tessellata Duncan S. Bell 2010-4-2 692 Riverside Arica Mountains: collecting along the ridgeline of the mountain range about 0.3 air mile north of the summit. 561 Comment
  JEPS90275  Amsinckia tessellata var. tessellata Roderick MacDonald 1973-3-18 1019 Riverside vicinity of Live Oak Tank (Colorado Desert, Joshua Tree National Monument); Colorado Desert, Joshua Tree National Monument 1280 Comment
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Nov 6 2011
  SD123833  Andropogon glomeratus var. scabriglumis Robert F. Thorne, Kay L. Wright, Richard K. Benjamin 1982-10-8 55407 Riverside San Bernardino Mountains, along roadside at seep, about 3.2 miles north of Whitewater Post Office. 594 Comment
  CAS-BOT-BC400334  Anemopsis californica A. J. Mc. 1892-4-22 s.n. Riverside Elsinore Comment
  SD227897  Anemopsis californica A. C. Sanders, K. C. Rose 1999-6-18 22808 Riverside Skinner / Domenigoni area: French Valley, E side of Washington Ave. near Rawson Rd. 451 Comment
  UC1543180  Anisocoma acaulis Donald G. Nelson 1936-5-21 378 Riverside slopes just n of meadow in valley just e of, (e of Lake Hemet, n of Mt. Thomas) Hurkey Creek Camp; San Jacinto Mtns. Comment
  CAS-BOT-BC79936  Antennaria microphylla Philip A. Munz 1922-7-6 5977 Riverside Tahquitz Valley 2225 Comment
  CLARK-A1528-5006  Antennaria rosea John C. Roos 1937-8-18 2409 Riverside San Jacinto Mountains 2743 Comment
  RSA800236  Anthemis cotula Justin M. Wood 2010-6-17 2047 Riverside Perris Basin: March ARB, roadside ditch south of Cactus Ave. and west of Heacock St. 473 Comment
  POM354844  Antirrhinum coulterianum N. C. Cooper 1944-6-17 2007 Riverside San Jacinto Mountains: above Banning 1372 Comment
  RSA354842  Antirrhinum coulterianum N. C. Cooper 1944-5-21 2011 Riverside San Jacinto Mountains, West side 915 Comment
  RSA508012  Antirrhinum coulterianum Steve D. Boyd 1988-5-28 2296 Riverside Cahuilla Mountain, west of Anza, mostly along the crest. 1500 Comment
  CLARK-A1528-4165  Antirrhinum nuttallianum John C. Roos 1937-5-2 1398 Riverside La Sierra Comment
  UCR161437  Antirrhinum nuttallianum A. C. Sanders, Mike Misenhelter 2005-9-20 31681 Riverside San Jacinto Mtns. Foothills, Santa Rosa Hills south of Hemet, road NW of Gibbel Flat, south end of Cornell St., 0.5 mi. SE of the Ramona Bowl 610 Comment
  UCR199925  Antirrhinum nuttallianum Scott D. White, Justin Wood 2008-4-16 11887 Riverside Perris/Elsinore Basin, hills to the west of I-215 and south of Scott Rd. 549 Comment
  RSA272179  Apiastrum angustifolium C. W. Tilforth 1978-4-30 1571 Riverside Low rounded hills east of Norco. Comment
  UCR137564  Apiastrum angustifolium A. C. Sanders 2004-5-5 27772 Riverside Gavilan Hills, route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, c. 0.25 mi. NNW of Harford Spring, c. 1.2 mi. NE of Gavilan Peak 579 Comment
  UCR183003  Apiastrum angustifolium Mitch Provance 2003-5-5 4406 Riverside La Sierra Hills, Norco, NW side of the La Sierra Hills, east of the end of Rushmore Dr. 305 Comment
  UC878883  Apocynum cannabinum C. Epling and Wm. Robison 1935-6-30 Riverside between Pine Flat Camp and Fuller's Mill (Mt. San Jacinto); Mt. San Jacinto Comment
  POM366956  Aquilegia formosa var. truncata M. B. Dunkle 1933-7-20 3704 Riverside Idyllwild, San Jacinto Mountains. 1616 Comment
  UCR172003  Arabidopsis thaliana A. C. Sanders 2006-5-1 32248 Riverside Riverside, south side of UCR campus behind botany greenhouses 366 Comment
  RSA482629  Arabis pulchra Mark Morris 1929-3-17 14884 Riverside Palm Canyon. Comment
  RSA629177  Arctostaphylos Jon E. Keeley 1992-7-16 16676 Riverside Road to Santa Rosa Mountain (7S02), 9.3 km south of Highway 74. 1990 Comment
  RSA629383  Arctostaphylos glandulosa Jon E. Keeley 1992-4-17 15082 Riverside End of Woodchuck Road, Woodchuck Resort. 2 km south of Highway 79. 670 Comment
  CAS-BOT-BC23118  Arctostaphylos glandulosa subsp. glandulosa W. Pequenat 1940-4-13 s.n. Riverside Bedford Road, Santa Ana Mts. 853 Comment
  POM367273  Arctostaphylos glandulosa subsp. glandulosa I. W. Clokey, E. G. Anderson 1935-4-16 6787 Riverside East of Hemet. 630 Comment
  SD180710  Arctostaphylos glandulosa subsp. glandulosa C. Matt Guilliams 2007-8-2 400 Riverside Santa Margarita Ecological Reserve, east of A!Highlands TrailA(r) on mesa top, ca. 100m east of weather station. Among boulders, exposed, 0 slope. 654 Comment
  UC1137202  Arctostaphylos glandulosa subsp. glandulosa Willis E. Pequegnat 1940-6-19 Riverside main divide road between Pleasants Peak and Bedford Peak; Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. Comment
  RSA629365  Arctostaphylos glandulosa subsp. leucophylla Jon E. Keeley 1992-6-16 16820 Riverside Hwy 234, 3 km N of Hwy 74, San Jacinto Mtns. 1520 Comment
  RSA228813  Arctostaphylos glauca var. glauca Colin M. Wainwright, Larry E. DeBuhr 1972-2-10 589 Riverside Cleveland National Forest. 5 mi. south of Lake Elsinore along Forest Route 7S04. Comment
  RSA5251  Arctostaphylos patula subsp. platyphylla C. B. Wolf 1932-8-5 3988 Riverside Along trail from Tahquitz Valley to San Jacinto Peak. 2560 Comment
  CAS-BOT-BC44363  Arctostaphylos pringlei subsp. drupacea Marcus E. Jones 1926-6-20 s.n. Riverside 20 miles north of Idylwild Comment
  CAS-BOT-BC44367  Arctostaphylos pringlei subsp. drupacea Walter Knight; Irja Knight 1985-4-3 6064 Riverside Near Idylwild Park, San Bernardino National Forest 1889 Comment
  POM49843  Arctostaphylos pungens P. A. Munz, I. M. Johnston 1924-7-29 8878 Riverside Lone Oak Ranch, Banning-Idyllwild Road. 1037 Comment
  RSA271755  Arctostaphylos pungens J. Sauer, Richard Minnich 1977-4-7 5958 Riverside Upper Hurley Flat, San Jacinto Mountains 1311 Comment
  RSA635799  Arctostaphylos pungens Jon E. Keeley 1992-7-16 16556 Riverside Red Mountain Road/Stanley Road, 11.7 km east of R3 on Stanley Road. 975 Comment
  RSA636003  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19550 Riverside Carancho Rd., W. of Temecula. 440 Comment
  RSA636169  Arctostaphylos rainbowensis Allen Massihi, Robert Goar, Jon E. Keeley 1992-8-11 19463 Riverside West of Temecula, off Carancho Rd., west of De Luz Rd., eastern Santa Margarita Mtns. 460 Comment
  UCR132908  Arenaria macradenia John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  CAS-BOT-BC202504  Argythamnia serrata John Thomas Howell 1928-1-30 3308 Riverside 2 miles e. of Shaver's Well, Colorado Desert Comment
  PASA688  Argythamnia serrata 1928-3-3 Riverside Desert Hidden Springs Comment
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Aug 27 2016
  UCD56399  Aristida adscensionis Lewis S. Rose 1945-12-27 45337 Riverside Colorado Desert, Cathedral City. 152 Comment
  UCR133745  Aristida adscensionis F. R. Fosberg 1932-3-13 8102 Riverside Sonoran (Colorado) Desert, Coachella Valley, Thousand Palms Canyon 213 Comment
  UCR139363  Aristida adscensionis I. M. Johnston 1918-4-27 1861 Riverside Santa Ana Mtns. Region, Temescal Canyon 366 Comment
  RSA129293  Aristida adscensionis var. modesta H. S. Yates 1937-3-23 6442 Riverside 15 miles NNE of Mecca 457 Comment
  CDA31494  Aristida purpurea var. nealleyi A. A. Beetle 1942-4-23 3187 Riverside Banks of Colorado River, 24 miles north of Blythe 0 Comment
  JEPS68444  Aristida purpurea var. nealleyi W. L. Jepson 1928-4-25 12585 Riverside Cottonwood Spgs. Colorado Desert, Eagle Mts. 731 Comment
  UCR117105  Aristida ternipes var. gentilis A. C. Sanders, T. B. Salvato 2001-5-16 24301 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
  HSC25255  Artemisia californica Richard Spjut 1972-2-18 2209 Riverside ca. 4 miles south of Beaumont on Hwy.60 Comment
  SD48524  Artemisia californica E. K. Balls, P. C. Everett 1957-11-4 22755 Riverside Snow Creek 609 Comment
  RSA575970  Artemisia douglasiana Steve Boyd 1981-1-9 s.n. Riverside Peninsular Range Gavilan Hills, narrows in central Dawson Cyn. 488 Comment
  IRVC494  Artemisia dracunculus R. H. Whittaker, W. A. Niering 1963-6-9 SJ 372 Riverside Above saw mill. Peninsular Ranges, Santa Rosa Mountains 1936 Comment
  UCR195800  Artemisia ludoviciana subsp. albula Jim Andre, T. La Doux 2007-9-6 8704 Riverside Little San Bernardino Mountains, Joshua Tree National Park, dirt road to Lost Horse Ranger Station, below Hemmingway Buttress 1237 Comment
  RSA721889  Asclepias albicans J. Mark Porter, Orlando Mistretta 2003-6-5 13615 Riverside Chocolate Mountains. Chocolate Mountain Bombing and Gunnery Range. Unnamed canyon, S of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running southeast. 412 Comment
  UCR20538  Asclepias eriocarpa W. W. Mayhew 1977-7-5 s.n. Riverside Peninsular Range; San Jacinto Mtns., Pine Cove 1835 Comment
  UCR34994  Asclepias eriocarpa L. B. Ziegler 1972-6-26 487 Riverside San Jacinto Mtns, [Hemet] Garner Valley 1400 Comment
  UCR82887  Asclepias subulata A. C. Sanders, S. White & C. Sanders 1994-10-9 15829 Riverside San Bernardino Mtns., Mission Canyon Road 520 Comment
  UC371109  Aspidotis californica Miss M. A. King 1892-1 Riverside Menifee Comment
  UCR147805  Asplenium vespertinum Steve Boyd, Aydee Virgen 2004-4-13 10896 Riverside Peninsular Ranges/Santa Ana Mtns region, San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon Comment
  JEPS54674  Astragalus W. L. Jepson 1901-5-25 1448 Riverside trail to Santa Rosa Peak; trail to Santa Rosa Peak Comment
  RSA415778  Astragalus aridus M. B. Dunkle 1933-3-4 3070 Riverside Sandy wash, Painted Canyon, Colorado Desert 30 Comment
  SBBG3169  Astragalus crotalariae H. and M. Dearing 1940-1-1 4064 Riverside NE end of Salton Sea Comment
  UC702806  Astragalus deanei Charles B. Fiker 1946-5-30 3492 Riverside on Highway 395 dip s Temecula River Bridge Comment
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Aug 12 2016
  RSA689493  Astragalus didymocarpus var. didymocarpus Scott D. White 2001-4-19 8383 Riverside Perris Basin: Perris / Sun City area. Just east of Goetz Rd. and south of Ethanac Rd., ca. 1.5 - 2 mi. W of I-215 freeway. 442 Comment
  UCR18985  Astragalus didymocarpus var. dispermus John C. Roos 1949-3-19 4113 Riverside Sonoran (Colorado) Desert, Near Indio Comment
  JEPS54606  Astragalus douglasii W. L. Jepson 1901-5-27 1472 Riverside Cahuilla Valley Comment
  OBI35666  Astragalus douglasii var. parishii Louis B. Ziegler 1972-5-15 460 Riverside San Jacinto Mts - Hemet (Garnder) Valley 1402 Comment
  UC56443  Astragalus douglasii var. parishii H. M. Hall May 17 1901-Jun 1 1901 Riverside Valle Vista San Jacinto Valley, Valle Vista (S. Jacinto Valley) 548 Comment
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Mar 27 2011
  SBBG118866  Astragalus lentiginosus J. Snapp-Cook with K. Roblek, K. Clark, A. Chavez 2005-6-30 CFW 010 Riverside Rancho Mirage, ca. 0.5 mi WNW of jct of Ramon Rd and Los Alamos Way; area referred to as "Big Dune" 91 Comment
  UCR11613  Astragalus lentiginosus O. H. Kappler 1950-4-1 2047 Riverside Western Colorado Desert, Four mi. east of Palm Springs, north of Cathedral City. 183 Comment
  JOTR28752  Astragalus lentiginosus var. variabilis La Doux, Tasha, Bill Truesdell, Erin Babich 2005-3-7 1595 Riverside Joshua Tree National Park. Eagle Mountains, southeast end near Pinto Wells 316 Comment
  RSA0029320  Astragalus lentiginosus var. variabilis Justin M. Wood, J. Varonin, T. Valentovich 2012-4-23 4692 -E Riverside Sonoran Desert: Chuckwalla Valley, active sand dunes +/- 7.25 miles northeast of Desert Center, +/- 3.0 miles E of SR-177, and +/- 1.0 mile N of abandoned Jojoba farm. 149 Comment
  RSA605803  Astragalus lentiginosus var. variabilis R. S. Woglum 1939-4-11 2203 Riverside Sonora Desert: Desert Center. Comment
  UC218004  Astragalus nuttallianus var. imperfectus P. A. Munz, D. Keck Apr 9 1922-Apr 12 1922 4846 Riverside vicinity Corn Springs (Chuckwalla Mountains, Colorado Desert); Colorado Desert, Chuckwalla Mountains, vic Corn Springs 670 Comment
  RSA202707  Astragalus palmeri Marcus E. Jones 1933-4-2 s.n Riverside Palms to Pines Road, S of Coachella Valley. 1067 Comment
  CSUSB2272  Astragalus pomonensis Steven J. Southwell 1971-5-23 Riverside Santa Ana Mountains Santa Ana Mountains. Widespread along dirt road between Murrietta and Tenaja Station. 609 Comment
  UC718549  Astragalus pomonensis Carl B. Wolf 1935-4-7 6298 Riverside 1 mi w Val Verde (Gavilan Hills Region); , w of Val Verde 487 Comment
  RSA90741  Astragalus pomonensis Joseph A. Ewan, C. Epling 1933-4-12 7610 Riverside 5 miles above Corona, Temescal Canyon. Comment
  POM26330  Astragalus sabulonum Marcus E. Jones 1906-4-30 s.n. Riverside Indio. Comment
  CAS-BOT-BC66102  Athyrium filix-femina var. cyclosorum Ralph Hoffmann 1929-9-6 s.n. Riverside San Jacinto Mt. Comment
  RSA192206  Athysanus pusillus E. W. Lathrop 1960-3-25 4680 Riverside 14 miles W of Murrieta. Comment
  SD258308  Atrichoseris platyphylla J. M. Andre 2013-3-27 24822 Riverside Parker SW; Riverside Mountains; east side of riverside Mountains, along Hwy 95, 13.2 mi south of Vidal Jct. 125 Comment
  UCR279345  Atrichoseris platyphylla A. C. Sanders, Jim Malusa 2017-3-23 42943 Riverside Sonoran (Colorado) Desert, northern end of Chocolate Mountains, in U.S. Navy Aerial Gunnery Range, c. 3 miles east of Iris Pass 854 Comment
  UCR166804  Atriplex argentea var. mohavensis R. E. Riefner Jr. 2004-8-27 04- 396 Riverside N of La Sierra Heights; NE (c. 0.25 mi) off Arlington Avenue, along dirt access road to Hidden Valley Wildlife Reserve 221 Comment
  SEINET3930598  Atriplex canescens Lewis S. Rose 1966-12-11 66096 Riverside Palm Springs.; 0 152 Comment
  UC1136265  Atriplex canescens H. S. Yates 1936-4-7 5414 Riverside Palm Springs San Jacinto Quad., Palm Springs Comment
  LA204703  Atriplex canescens var. laciniata Raymond B. Cowles; 1936-11-29 sn Riverside Indian Wells Comment
  POM202641  Atriplex canescens var. laciniata W. M. Ingram 1934-10 3 Riverside 2 miles west of Edom Highway 99. Colorado Desert. Below sea level. Comment
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Dec 11 2011
  SD80078  Atriplex canescens var. linearis Nancy Ryan Zabriskie, Walter Zabriskie 1970-7-29 331 Riverside Andreas Canyon Club property, Palm Canyon watershed. 170 Comment
  CAS-BOT-BC249040  Atriplex elegans var. elegans A. C. Sanders; John F. Green 2012-6-25 40307 Riverside Peninsular Range; Santa Ana Mtns. Region: Temescal Canyon near I-15 crossing of Temescal Canyon Rd. and Temescal Creek, c. 2.6 km SE of Lee (Corona) Lake 361 Comment
  RSA777418  Atriplex hymenelytra Thomas Stoughton, Christi Gabriel, Stephanie Rockwood 2011-3-22 781 Riverside Mecca Hills, just south of Shaver's Well 305 Comment
  SEINET7248313  Atriplex hymenelytra Duncan S. Bell, Deidre Conocchioli 2014-1 2646 Riverside Orocopia Mountains; southern section of range; Gucci Spring. 416 Comment
  RSA557353  Atriplex lentiformis subsp. lentiformis Julie Greene 1993-6-11 1376 Riverside North of new pond. 441 Comment
  UCD97564  Atriplex nummularia Mitch Provance 2000-10-28 2289 Riverside Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411. 290 Comment
  RSA598396  Atriplex parishii C. Reiser 1996-5-9 s.n. Riverside Winchester; north of Haddock, west of Farnsworth Road; also south of Simpson Road; near Adams. Comment
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Mar 20 2011
  CAS-BOT-BC176533  Atriplex polycarpa Marcus E. Jones 1903-5-8 s.n. Riverside Indio -7 Comment
  CAS-BOT-BC176534  Atriplex polycarpa Milo S. Baker 1928-4-3 2775 b Riverside Palm [Canon] Canyon Comment
  POM279028  Atriplex polycarpa Grant D. Brown 1949-12-15 479 Riverside 3 miles south of Mecca on highway 111 Comment
  UCD97609  Atriplex polycarpa Lewis S. Rose 1967-12-19 67177 Riverside La Quinta. 15 Comment
  UC72715  Atriplex semibaccata F. M. Reed 1903-8-15 374 Riverside near Rincon; near Rincon Comment
  UCR281879  Atriplex semibaccata Mitch Provance 2012-11-9 1112- 17 Riverside San Bernardino Valley, Santa Ana River Bottom, vicinity of Tequesquite Creek, area W of the N end of Rudidoux Ave. and Old Ranch Rd. 229 Comment
  UCR110913  Atriplex serenana A. C. Sanders, K. C. Rose 1999-6-18 22830 Riverside Domenigoni Valley, upper Warm Springs Creek between Hwy 79 (Winchester Rd.) and Scott Rd., Domenigoni Ranch, south of Winchester 433 Comment
  RSA602490  Atriplex suberecta P. J. MacKay 1996-10-3 23 Riverside Menifee Valley: SE corner of Hwy 215 and Newport R., adjacent to Newport, gully behind Ralph s shopping center. 434 Comment
  UCR111062  Atriplex triangularis D. E. Bramlet 1996-5-4 2464 Riverside San Jacinto Valley, San Jacinto Wildlife Area, along the road to Marsh A (western levee of pond 1), adjacent to the southern levee of Pond No. 1, approximately 1.5 km NE of the reserve entrance at Davis Road 433 Comment
  UCR201872  Atriplex triangularis Justin M. Wood 2008-9-22 145 Riverside SW Perris Basin, Temecula/Murrieta Creek, downstream of 1st Street bridge 305 Comment
  CAS-BOT-BC146194  Avena barbata T. Winfield 1975-5-1 s.n. Riverside Cajalco Road - 1 mile west of Lake Matthews Dam. Comment
  CLARK-A1528-4493  Avena barbata John C. Roos 1952-2-18 5353 Riverside Riverside 274 Comment
  CLARK-A1528-4494  Avena barbata John C. Roos, Lucille Roos 1950-4-15 4738 Riverside Box Springs Mountains 457 Comment
  UC1922689  Avena barbata Scott D. White, Angelia Carey 2004-4-5 9994 Riverside SAN JACINTO MTN FOOTHILLS: North of Valle Vista. Indian Creek Watershed. Lake Fulmor 7.5' Quad. Comment
  RSA0042643  Avena barbata Diane M. Ramirez 1983-5-15 27 Riverside Poppet Flat Divide Truck Trail, 3 mi S of junction with CA Hwy 243, S of Banning. Angelus Hill. 1253 Comment
  IRVC1476  Avena fatua Don Pfirrmann 1965-4-24 HS 78 Riverside Highway 74; 1/4 mile SE of Sven Camp summit. Comment
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Mar 30 2014
  IRVC5358  Avena fatua Gidon Ladizinsky 1971-5-19 s.n. Riverside University of California, Riverside Comment
  SEINET14287513  Avena fatua N. C. Cooper 1944-5-6 1218 Riverside Banning. 701 Comment
  JOTR32849  Baccharis brachyphylla La Doux, Tasha, E. Babich, M. Brown 2008-9-30 1169 Riverside Joshua Tree National Park. Little San Bernardino Mountains, east of Queen Mountain, near north entrance to park; basalt rocky slopes 946 Comment
  RSA0123697  Baccharis brachyphylla Duncan S. Bell, LeRoy Gross 2016-3-30 9165 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; in a side canyon off of Martinez Canyon, approximately 7.5 air miles southeast of the summit of Martinez Mountain. 970 Comment
  UC63262  Baccharis glutinosa H. M. Hall 1904-5-1 4953 Riverside vicinity of Riverside; Santa Ana River 243 Comment
  POM350371  Baccharis salicifolia P. J. Remple 1942-3-21 s.n. Riverside Banning - Indio - Palm Springs road junction Comment
  SEINET10670882  Baccharis salicifolia Greg Gust, Leith Nye 2005-3-10 Gust 535 Riverside City limits of Lake Elsinore on River Bank just off of Auto Center Dr, N of junction with Diamond Dr. 400 Comment
  RSA5608  Baccharis sergiloides C. B. Wolf 1932-10-11 4272 Riverside Morongo Wash, 3/10 mile below the San Bernardino County line. 671 Comment
  RSA696790  Baccharis sergiloides J. Russell Bruff 1927-11-16 34 Riverside Cottonwood Springs. Comment
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Jul 7 2012
  RSA772839  Baccharis sergiloides Orlando Mistretta, Duncan S. Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4724 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 W116.65121 604 Comment
  UCR89659  Baccharis sergiloides Bern Schwenn 1994-2-13 s.n. Riverside Colorado Desert/Santa Rosa Mtns., Santa Rosa Mtns, west fork Agua Alta Canyon. 657 Comment
  SBBG29368  Bahiopsis parishii D. Myrick 1968-3-4 1808 Riverside Palms to Pines Hwy out of Palm Desert 762 Comment
  SEINET2047551 Image available Baileya pauciradiata Shirley Hill 1963-3-13 630313 Riverside 500 yards down desert wash on Vista Chino St., Palm Springs Comment
  SEINET3005007  Baileya pauciradiata G. Rink, A. Karl, M. Honer, T. Thomas 2011-4-6 10436 Riverside Ca 5 miles west of Blythe, south fo I-10 and north of the transmission line, on dunes 141 Comment
  UCR42405  Baileya pauciradiata J. M. Stewart 1986-3-3 86- 16 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, east of Desert Center, east of the dry lake south of Palen Dry Lake Comment
  SBBG7793  Baileya pleniradiata K. K. Muller 1958-3-22 921 Riverside ca. 5.5 mi E of Desert Center Comment
  UCR260321  Bassia hyssopifolia A. C. Sanders 2015-2-19 41252 Riverside San Jacinto Valley, 53 acre parcel c. 370 m south of Ramona Expressway and 1 km east of Warren Rd., north of Record Rd. 442 Comment
  UCR45121  Bassia hyssopifolia L. F. LaPre 1986-9-25 s.n. Riverside Sonoran (Colorado) Desert, Cabazon Indian Reservation, adjacent to Southern Pacific R.R. tracks, c. 1 mi NW of Mecca, between Buchanan and Lincoln Sts., Coachella Valley 52 Comment
  RSA336420  Bebbia juncea R. F. Thorne, Walter Wisura, A. Shmida, R. Whittaker 1978-4-23 52051 Riverside Palm to Pines Highway: Above Palm Desert., north slope Santa Rosa Mountains. Comment
  SBBG20059  Bebbia juncea E. R. Blakley 1963-9-18 6181 Riverside US Hwy 80, 2.7 mi W of Desert Center 312 Comment
  RSA604715  Bebbia juncea var. aspera L. C. Wheeler 1961-10-8 7932 Riverside Temescal Valley: First big wash E of avocado mesa E of Wright Ranch. Comment
  RSA676127  Beloperone californica Scott D. White 2001-4-12 8297 Riverside Shaver s Valley. South of the I-10 Freeway, ca. 15 miles east of Indio jtn. I-10 / SR 111. Bajadas and washes adjacent to powerline access roads at unnamed freeway exit accessing pump station. 320 Comment
  UC1126277  Berberis aquifolium var. dictyota A. Lewis Mar 1934 323 Riverside Bedford Canyon; Corona Quadrangle, Cleveland Nat'l Forest Comment
  CLARK-A1528-2274  Berberis dictyota John C. Roos 1947-1-4 3197 Riverside Reche Canyon 487 Comment
  UCD166279  Bernardia incana Jack Major 1962-4-18 793 Riverside Just below Pinyon Flat on CA HWY 74. (Exact location unknown. Coordinates estimated by label maker.) 1188 Comment
  UCR191546  Beta macrocarpa A. C. Sanders 2008-4-15 34892 Riverside Peninsular Range, NE edge of city of Elsinore, off Nichols Rd. along Baker St., near Durant Siding 383 Comment
  RSA724079  Beta vulgaris R. E. Riefner 1998-4-22 98 -266 Riverside City of Wildomar, near Lake Elsinore, N 0.25 mi from Union St. and Corydon Rd. 367 Comment
  RSA319720  Bidens laevis Charlotte M. Wilder 1970-10-15 4808 Riverside Prado Dam in Prado Flood Control Basin on edge of river bordering old roadbed E of dam. 122 Comment
  SBBG880  Bloomeria crocea var. crocea H. and M. Dearing 1940-6-8 4353 Riverside W of Ribbonwood, Palms to Pine Hwy Comment
  SD133144  Boechera californica Scott White 1991-5-13 91 109 Riverside Highway 79 immediately west of U. S. Forest Campground at Dripping Springs. 550 Comment
  CAS-BOT-BC502087  Boerhavia triquetra A. C. Sanders; Jim Malusa 2015-9-10 41849 Riverside Sonoran (Colorado) Desert: Salt Creek Canyon, along Summit Rd c. 1.5 mi above mouth of Red Canyon, edge of Chocolate Mtns Aerial Gunnery Range 433 Comment
  RSA0027474  Boerhavia wrightii Deidre Conocchioli, Billy Sale, Naomi S. Fraga 2013-9-25 52 Riverside East of Alligator Rock: From I-10 at Desert Center, head south on CA-177 to BLM Rd 394 (dirt). Collection site is 1.1 miles SW of interstate exit ramp. 334 Comment
  UC53648  Bothriochloa barbinodis Dr. A. Davidson Riverside Banning Comment
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Mar 13 2011
  UCR89551  Bothriochloa barbinodis A. C. Sanders, O. F. Clarke, P. J. MacKay, S. D. White, C. L. Sanders 1994-11-27 15871 Riverside San Jacinto Mtns/Colorado Desert, Palm Canyon, from Hermit's Bench upstream to just beyond the confluence with East Fork 300 Comment
  SEINET3920214  Bouteloua aristidoides David Charlton 1988-2-18 1127 Riverside S side of Little San Bernardino Mtns. Fargo Canyon Road to Cottonwood Wash, S of Joshua Tree National Park, parallel to I-10. 1 mi. E of Jct Dillon Rd. and Fargo Cyn Rd.; 0 610 Comment
  UCR23965  Bouteloua aristidoides John C. Roos 1946-9-14 3026 Riverside Santa Rosa Mtns., Pinyon Flats 1220 Comment
  RSA675740  Bouteloua barbata Scott D. White, W. LaHaye 2001-4-28 8430 Riverside Colorado Desert: Coachella Valley, east of Dillon Road, ca. 6 road miles north of the I-10 Freeway. 137 Comment
  JOTR35007  Bouteloua barbata var. barbata La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3109 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road, near Mission Well 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
  CLARK-A1528-137  Bowlesia incana Richard L. Irwin 1963-5-11 O 108 Riverside Riverside 335 Comment
  UCR155167  Bowlesia incana A. C. Sanders 2005-5-4 29848 Riverside Gavilan Hills near Riverside, c. 1 km east and southeast of Gavilan Peak 625 Comment
  RSA758319  Brandegea bigelovii Doug Goldman 2005-3-3 3022 Riverside Box Canyon, along the west side of Box Canyon Road, around 10 miles southwest of the intersection with Interstate 10 and around 0.7 miles southeast of Blake Hill 268 Comment
  RSA800057  Brandegea bigelovii J. Andre 2012-3-19 21299 Riverside Orocopia Mountains; north end of range, 0.5 miles south of junction of Box Canyon Road and I-10 freeway, 23 miles east of city of Coachella. 488 Comment
  SD46074  Brandegea bigelovii Francia Chisaki, Peter Kamb 1952-4-6 2196 Riverside Box Canyon, on road from Mecca to Blythe Comment
  UC635681  Brandegea bigelovii H. L. Mason 1928-3-10 4213 Riverside Coachella Mountains, Hidden Springs Canyon Hidden Springs Canyon; Coachella Mountains, Hidden Springs Canyon Comment
  UCR245073  Brandegea bigelovii A. C. Sanders, T. B. Salvato 2012-10-12 40413 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Chuckwalla Valley Rd. near intersection with Graham Pass Rd., 4.56 km west of I-10 junction 124 Comment
  CAS-BOT-BC30262  Brassica nigra Steve Boyd 1986-5-7 1830 Riverside Temescal Canyon. Terrace escarpment between Horsethief Wash and Indian Truck Trail, south of I-15. Comment
  SEINET3507546 Image available Brassica nigra Howard Scott Gentry 1948-5-30 8173 Riverside Southern California. Gentry Farm, ca. 3 miles NE of Murrieta. Comment
  UCR38079  Brassica nigra O. F. Clarke 1985-5-13 s.n. Riverside San Jacinto River Valley, Gun club ponds east of Davis Road, a short distance north of Lakeview, east of the Bernasconi Hills 428 Comment
  JOTR31848  Brassica tournefortii La Doux, Tasha, M. Harding, J. Lynam, B. Truesdell, K. Kain 2011-3-10 2106 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Fargo Canyon; where 4x4 road meets southwest park boundary; steep-walled canyon 533 Comment
  RSA496658  Brassica tournefortii A. C. Sanders 1988-1-30 7590 Riverside Eastern foothills of the Santa Ana Mountains, ca. midway between Murrieta and Temecula. Los Cerritos Ranch and adjacent 80-acre property to the NW; N of Cherry St., W of Adams Ave., S of Meadowlark Ridge Lane and Elm St. 328 Comment
  RSA653550  Brassica tournefortii Scott D. White 1999-5-24 7406 (unic.) Riverside San Jacinto Valley, San Jacinto River wash: Just N of City of San Jacinto, about 1 mile SE of State St. Bridge. 448 Comment
  RSA772848  Brassica tournefortii Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4843 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
  UC1929782  Brassica tournefortii Scott D. White 2003-3-23 8844 Riverside SANTA ROSA MOUNTAINS: Desert slope; Hwy 74 near Carrizo Creek crossing. Comment
  UCR20832  Brassica tournefortii A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1302 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UCR75078  Brassica tournefortii A. C. Sanders, E. J. Lawlor 1992-4-4 12122 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  RSA342556  Brickellia arguta R. F. Thorne 1980-5-28 54208 Riverside Branch ravine running W from Whitewater Canyon, W of road and ca. 3.2 miles N of Hwy 10 and Whitewater P.O. 610 Comment
  JOTR29148  Brickellia californica La Doux, Tasha, Mike Bell 2003-10-17 1123 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Wonderland of Rocks; Wonderland Wash, active wash corridor with sandy bottom, surrounded by granitic outcrops and pediments 1310 Comment
  RSA561424  Brickellia californica Steve Boyd 1992-9-9 7685 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Upper San Mateo Canyon, from the junction of Tenaja Road (7S01) and Los Almos Road (7S04) and the confluence of Los Almos Creek., Up the San Mateo Trail north to Potrero de la Cienega. 396 Comment
  RSA545234  Brickellia desertorum R. F. Thorne 1970-10 41884 Riverside San Bernardino Mountains- Whitewater canyon: ca. 1350 ft. near bridge and Whitewater Post Office to ca. 2000 ft. up the canyon toward fish hatchery. 610 Comment
  RSA89870  Brickellia desertorum J. C. Roos 1950-9-30 4996 Riverside Box Springs Grade 0.5 mile SE of Citrus Experiment Station Riverside. 396 Comment
  UC1010313  Brickellia desertorum John and Lucille Roos 1950-9-30 4996 Riverside .5 mi se of Citrus Experiment Station (Box Springs Grade); Box Springs Grade 396 Comment
  JEPS18786  Brickellia incana J. B. Feudge 1927-5-9 1609 Riverside Shaver's Well, Colorado Desert Colorado Desert, Shaver's Well Comment
  UCR89703  Brickellia incana J. M. Stewart 1990-10-28 673 Riverside Sonoran Desert. Colorado Desert, Eagle Mountains Comment
  UC1442853  Brodiaea filifolia Theodore F. Niehaus 1966-5-2 661 Riverside flats of San Jacinto River. 1.3 mile southeast of Pierris Comment
  RSA678935  Brodiaea orcuttii Scott D. White, Michael Honer 2003-6-3 9478 Riverside Near Rainbow Valley. West of the I-15 Freeway and immediately north of the San Diego County boundary. 335 Comment
  CAS-BOT-BC144321  Bromus Carl B. Wolf 1932-8-5 3949 Riverside San Jacinto Mountains. Along trail from Tahquitz Valley to San Jacinto Peak. 2621 Comment
  SD185078  Bromus arizonicus A. C. Sanders, K. Rose and D. Woodard 1995-3-22 16220 Riverside San Gorgonio Pass/San Jacinto Mountains; on and near a rocky spur at the north foot of the mountains. 399 Comment
  UCR86644  Bromus arizonicus A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16271 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
  CAS-BOT-BC149438  Bromus berteroanus Peter H. Raven 1958-5-5 12882 Riverside Jumbos Rocks Camp Ground, Joshua Tree National Monument. Comment
  RSA604754  Bromus berteroanus A. C. Sanders 1995-4-13 16509 Riverside San Bernardino Mountains/ Colorado Desert: Devil's Garden, E end of mountains, 2.1 miles W of Highway 62 on Pierson Ave. & dirt extension, 1.7 mile above Sierra Blv., (33 deg 58'N, 116 deg 37.5'W) 701 Comment
  RSA562103  Bromus carinatus Steve Boyd 1992-4-14 6803 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area. Along Verdugo Trail from Tenaja Trail to Bluewater Trail in upper watershed of Bluewater Canyon, S of Sitton Peak. 793 Comment
  UC69336  Bromus carinatus var. carinatus H. M. Hall 1899-5-22 1112 Riverside San Jacinto Mountains; Southern California, San Jacinto Mountains 1524 Comment
  CAS-BOT-BC148745  Bromus carinatus var. marginatus H. M. Hall 1901-7-19 2462 Riverside San Jacinto Mountains. Tanquits Valley. 2133 Comment
  RSA801947  Bromus carinatus var. marginatus LeRoy Gross, Grace Cho, Caitlin Elam 2013-5-30 6158 Riverside Along road (5S24). End of Marion Ridge road, south of the community of Pine Cove. Ridge running south down to Idyllwild school of performing arts, west of Strawberry Valley. 1799 Comment
  RSA509525  Bromus catharticus Ed LaRue 1989-4-14 s.n. Riverside Old agricultural fields 0.5 mile S of Lakeview. 457 Comment
  UCD58337  Bromus catharticus L. Reese 1956-5-29 12 Riverside San Jacinto Valley. 475 Comment
  RSA179503  Bromus grandis E. W. Lathrop 1960-6-7 4868 Riverside 10 miles west of Murrieta. Redonda Mesa. Comment
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Apr 28 2011
  RSA561068  Bromus grandis Steve Boyd, Timothy S. Ross, D. E. Bramlet s.n. Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, along stream, adjacent benches, and lower slopes from confluence with Tenaja Canyon. 366 Comment
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Jun 12 2012
  SEINET260204 Image available Bromus hallii M. Curto, L. Allen 1990-6-25 679 Riverside San Bernardino National Forest ; San Jacinto Mts ca 3km SE of Pine Cove on SBNF Rd 5S10 1830 Comment
  RSA586299  Bromus hordeaceus D. L. Banks, Steve Boyd 1995-5-3 210 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
  RSA658239  Bromus hordeaceus subsp. hordeaceus A. Sleigh, A. Haimov 1992-5-5 109 Riverside 1/2 mile east of Davis Road, north of San Jacinto River, San Jacinto Wildlife Area. Comment
  CAS-BOT-BC162384  Bromus lanatipes H. M. Hall 1901-6-1 2228 Riverside San Jacinto Mountains. South side. 1615 Comment
  SBBG497  Bromus rubens C. H. Muller 1952-4-5 9489 Riverside White Water Cyn, 1 mi above White Water Comment
  SDSU12913  Bromus rubens Jutta Buschbom 1991-5-1 5 Riverside SE slope, N border of the Reserve, beyond and Avacado grove ca. 500 m (15 min) from the fieldstation Santa Margarita Ecological Reserve, Temecula Comment
  UCR2249  Bromus rubens H. S. Fawcett 1913-12-24 1109 Riverside West Riverside, along main road, Santa Ana River flats 244 Comment
  SEINET4404474  Bromus rubens N. D. Atwood 1993-3-27 17691 Riverside Corona Del Mar State Park, along Newport Coast Drive 0 Comment
  RSA595312  Bromus stamineus D. L. Banks, Victor Steinmann 1996-4-20 897 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
  UC1930035  Bromus tectorum Scott D. White, Justin Wood 2008-5-15 12003 Riverside San Jacinto Mountains: Johnson Meadow. Comment
  UCR260896  Bromus tectorum A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-25 41524 Riverside Moreno Valley, south side of Allesandro Blvd. west of Graham St., north of Brodiaea Ave. 488 Comment
  RSA535079  Caesalpinia gilliesii Steve Boyd, T. S. Ross 1991-11-10 6629 Riverside Gavilan Hills, W of Perris along Santa Rosa Rd. near the base of range. Comment
  UC555386  Caesalpinia virgata H. L. Mason 1928-3-10 Riverside Coachella Mts., Hidden Springs Canyon Comment
  UCR128170  Calamagrostis koelerioides Michael Honer 2003-5-15 1848 Riverside Santa Ana Mountains, Rainbow area, just north of San Diego County boundary and west of the I-15 Freeway 518 Comment
  RSA466553  Calandrinia ciliata Jeannette B. Edge 1934-3-18 s.n. Riverside [San] Timoteo Canyon. 518 Comment
  SDSU18402  Calandrinia ciliata C. Matt Guilliams 2008-2-21 471 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. 449 Comment
  UCR228252  Calandrinia ciliata A. C. Sanders, T. B. Salvato 2011-4-1 38930 Riverside Peninsular Range, Lake Elsinore, near intersection of Pierce St., Baker St., and Nichols Rd., flats at south side of Alberhill Mtn. 389 Comment
  UCR93019  Calandrinia ciliata G. P. Schultz 1994-4-7 81 Riverside Box Springs Mtns, Big Springs Canyon and N on the crest to Two Trees Canyon (S side) Comment
  SBBG101639  Calandrinia menziesii S. Boyd, T. Ross, L. Arnseth, J. Bonilla 1990-4-2 4042 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, Hwy 79, E of USFWS Dripping Springs Guard Station 487 Comment
  CAS-BOT-BC167297  California macrophylla H. M. Hall 1897-5-4 s.n. Riverside Alice Mine Comment
  UCR280980  California macrophylla Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-4-11 417- 80 Riverside Elsinore Trough, West side of Baker St., slopes just S to SE of intersection with road to the water tank. 421 Comment
  LA31714  Calocedrus decurrens Carl Epling; 1931-10-3 sn Riverside San Jacinto Mountains, Strawberry Valley 1523 Comment
  RSA377365  Calochortus invenustus M. B. Dunkle 1933-7-20 3717 Riverside Idyllwild, San Jacinto Mountains. 1616 Comment
  UC3393  Calochortus invenustus H. M. Hall Jul 1901 2475 Riverside Tauquitz Valley San Jacinto Mountains 2712 Comment
  UCR222418  Calochortus plummerae D. E. Bramlet, M. Riedel-Lehrke 2006-6-13 4021 Riverside Peninsular Range; Perris-Aguanga Basin Region, West Hemet Hills, 1.28 km south of Florida Ave. & 1.31 km east of Hwy 79/Winchester Rd. 625 Comment
  UCR240269  Calochortus plummerae Theresa Johnson 2010-6-16 s.n. Riverside San Jacinto Mtns. Foothills, Potrero Canyon 701 Comment
  RSA501010  Calochortus splendens Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-1 3129 Riverside Vail Lake area, ridge-top of volcanic substrate w/clay soil, 2 mi W of dam, at edge of escarpment E of Pauba Valley. 518 Comment
  RSA524581  Calochortus splendens Steve Boyd, Timothy S. Ross, Laurel Arnseth, J. Bonilla 1990-4-3 4129 Riverside Vail Lake area, upper benches and adjacent slopes of E flank of Big Oak Mountain, S of E summit. 610 Comment
  UCR125200  Calochortus splendens Mitch Provance 1998-5-24 527 Riverside Jurupa Mtns., Belltown area, 'Belltown Hill', small knoll near the E corner of Agua Mansa Rd. and Crestmore Rd./ Market St. 299 Comment
  UCR1591  Calochortus splendens R. L. Needham 1962-5-20 10089 Riverside San Jacinto Mtns., Banning-Idyllwild Hwy [243], c. 5 mi from Banning 915 Comment
  CAS-BOT-BC483506  Calochortus splendens Ynez Whilton Winblad 1941-5-27 s.n. Riverside San Juan Canyon, Highway 74, San Juan Mts. 609 Comment
  RSA500171  Calochortus weedii var. intermedius Steve Boyd, Orlando Mistretta, Walter Wisura 1989-5-30 3656 Riverside Vail Lake area, burned area just SW of the dam, S of Temecula Creek. 488 Comment
  POM158062  Calycoseris parryi A. M. Alexander 1941-5-11 2146 Riverside 1.5 mi N of Cottonwood Spring, Eagle Mts. 976 Comment
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Oct 9 2010
  JEPS52561  Calyptridium monandrum Carl V. Meyer 1929-6-15 756 Riverside along old road between Keen Camp and Idyllwild (San Jacinto Mountain); San Jacinto Mountain 1524 Comment
  SEINET3088878 Image available Calyptridium monandrum Scott White 1991-5-10 91 -126 Riverside Hwy 79, immediately W of U.S. Forest Service Campground at Dripping Springs. 549 Comment
  UCR137704  Calyptridium monandrum D. L. Banks, V. W. Steinmann 1997-3-13 1518 Riverside NW Palomar Mtns, Agua Tibia Mtns, Vail Lake area, N and just south of Hwy 79; hills (burned in the Vail fire of May 1996) east of the Dripping Springs alcove and west of Vail Lake Marina Rd 549 Comment
  UCR178002  Calyptridium monandrum S. J. Myers, John Green 2003-4-4 s.n. Riverside San Jacinto Mountains, powerline trail west of Juan Diego Flats toward Reed Valley, NW of Cahuilla Mountain 1189 Comment
  CHSC110692  Calystegia longipes Dean Wm. Taylor 2003-5-7 18542 Riverside 1 mi. SE of Steele Peak, 0.4 miles NNW of Good Hope Mine, under electrical transmission line corridor. 579 Comment
  CAS-BOT-BC224280  Calystegia macrostegia A. C. Sanders; T. B. Salvato; Kelly Volansky; Michelle Balk 2006-5-24 32520 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 640 Comment
  UCR278863  Calystegia macrostegia subsp. intermedia Mitch Provance 2011-6-15 17102 Riverside Santa Ana River Valley, Riverside, north side of Market St., 100-200 ft. east of the rip rap along the Santa Ana River34 245 Comment
  UCR1645  Calystegia macrostegia subsp. longiloba William G. Truesdell 1962-4-20 42062 5 Riverside 10 mi south of Hemet on Hwy 79 610 Comment
  RSA291569  Calystegia occidentalis subsp. fulcrata C. W. Tilforth, John Dourley 1980-7-15 2077 Riverside South of Thomas Mountain Campground along Thomas Mountain Road, south of Lake Hemet & west of Highway 74. Comment
  UC23142  Calystegia occidentalis subsp. fulcrata H. M. Hall 1901-6 Riverside vicinity Strawberry Valley (San Jacinto Mountains); , vicinity Strawberry Valley 1584 Comment
  RSA612487  Camissonia bistorta D. L. Banks 1997-2-23 1330 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
  UCR107408  Camissonia bistorta B. G. Pitzer 1997-3-23 2992 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
  UCR117089  Camissonia bistorta A. C. Sanders, T. B. Salvato 2001-5-16 24297 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
  RSA135157  Camissonia brevipes subsp. brevipes Peter H. Raven 1958-3-16 11856 Riverside outwash plain below Cottonwood Springs, Joshua Tree National Monument. Comment
  RSA134517  Camissonia californica Harlan Lewis 1957-4-5 s.n. Riverside Colorado Desert, Morongo Canyon. Comment
  RSA144811  Camissonia californica E. G. Linsley, J. W. MacSwain 1960-3-1 60 -2 Riverside Colorado Desert, Palm Springs, Tamarisk Avenue Comment
  RSA162841  Camissonia californica J. D. Olmsted 1958-6-15 189 Riverside San Jacinto Mountains. Intersection of Strawberry Creek with Idyllwild-Hemet road [Hwy 74] 8 miles below and West of Mt. Center. Along roadside. 915 Comment
  UCR93819  Camissonia californica P. J. MacKay 1996-6-15 002 Riverside Reche Cyn., 2.5-3 mi. south of S. B. county line on Reche Cyn. Rd. 580 Comment
  UCR96880  Camissonia californica Scott D. White 1993-3-12 1183 Riverside Near Winchester 466 Comment
  UCR964  Camissonia campestris S. C. Anderson 1957-5-18 s.n. Riverside San Jacinto River, 1 mi north of junction of State Hwy 74 [presumably in vicinity of Valle Vista] Comment
  RSA72277  Camissonia cardiophylla Robert L. Dressler 1949-3-19 390 Riverside Box Canyon, Orocopia Mts. Comment
  POM6847  Camissonia claviformis subsp. aurantiaca P. A. Munz, L. T. Street, G. Williams 1919-3-26 2339 Riverside Mecca Oasis Date Ranch, roadside -46 Comment
  RSA135223  Camissonia claviformis subsp. aurantiaca Peter H. Raven 1958-1-23 11425 Riverside United States Highway 99 [Hwy 10], 6.5 miles north-west of Indio. Comment
  RSA144802  Camissonia claviformis subsp. aurantiaca E. G. Linsley, J. W. MacSwain 1960-3-2 60 -9 Riverside 2 miles west of Desert Center. Comment
  RSA449191  Camissonia claviformis subsp. aurantiaca Albert J. Perkins 1914-05 s.n. Riverside Riverside vicinity Comment
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Sep 3 2011
  SEINET3141312  Camissonia claviformis subsp. claviformis R. W. Spellenberg 2001-3-25 13215 Riverside 5 km W of Blythe at junction of California. Hwy. 78 and IH-10 90 Comment
  RSA186729  Camissonia ignota Peter H. Raven 1962-3-19 16909 Riverside Lake Matthews road 14.7 miles west of U.S. Highway 395. Comment
  UCR22073  Camissonia ignota Steve Boyd 1980-4-27 147 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 640 Comment
  RSA500214  Camissonia intermedia Steve Boyd, T. S. Ross, L. Arnseth 1989-5-7 3529 Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  RSA653425  Camissonia intermedia Scott D. White 1999-5-24 7392 Riverside San Jacinto Valley, San Jacinto River wash: Just N of City of San Jacinto, about 1 mile SE of State St. Bridge. 448 Comment
  RSA543896  Camissonia micrantha Steve Boyd 1991-5-20 6273 Riverside Santa Ana Mountains, NW of Lake Elsinore. Lower Rice Cyn, just inside Cleveland Nat. For. boundary. 573 Comment
  CLARK-A1045-210  Camissonia pallida George K. Helmkamp 1979-4-18 Riverside Indio Hills along Dillon Road; Lost Horse Mtn. 15'Q Comment
  HSC79097  Camissonia pallida subsp. hallii James Henrickson 1973-3-18 8598 Riverside 16 (air) mi. E of Temecula, 2.9 mi. E of Aguanga along Hwy. 71 823 Comment
  RSA449238  Camissonia pallida subsp. pallida Anstruther Davidson 1906-01 1146 Riverside Taquitz Canon, Colorado Desert. Comment
  RSA567647  Camissonia refracta A. C. Sanders, E. J. Lawlor 1992-4-4 12099 Riverside McCoy Mountains, within 1/2 mile of McCoy Spring. 244 Comment
  UCR166849  Camissonia refracta 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
  RSA673732  Camissonia strigulosa Scott D. White, Bill La Haye 2000-5-27 7957 Riverside San Jacinto Mountains: Baldy Mtn. area. 1616 Comment
  RSA674931  Camissonia strigulosa Scott D. White, Tasha LaDoux 2000-4-23 7721 Riverside Perris/San Jacinto Basin: Winchester/Hemet area. Unnamed hills just S of Lakeview Mts. South of Hwy 74 and E of Hwy 79. 473 Comment
  UCR154761  Camissonia strigulosa T. B. Salvato, Kent Beaman 2005-5-16 780 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
  UCR97655  Camissonia strigulosa A. C. Sanders, G. Helmkamp 1997-3-15 19960 Riverside Lake Skinner area: NE of Skinner Lake in a tributary to Rawson Canyon, along the dirt road 503 Comment
  SDSU3330  Camissoniopsis bistorta H. Wedberg 1958-3-31 203 Riverside 10.3 miles south of Hwy 74 in Hemet, on Hwy 79. 412 Comment
  UC20636  Camissoniopsis ignota unknown 1861-2-1 151 Riverside Temescal Mountains Comment
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Jul 4 2010
  UCR109621  Carduus pycnocephalus R. D. Goeden, Don W. Ricker 1971-5-4 s.n. Riverside Box Springs Mtns., Highgrove, National Orange Co. property beyond E end of Palmyrita Ave. 412 Comment
  UCR105727  Carex abrupta L. C. Wheeler 1961-6-20 7895 Riverside Peninsular Ranges; San Jacinto Mtns., W fork of Tahquitz Creek 2378 Comment
  UCR68861  Carex barbarae Steve Boyd, T. S. Ross 1990-5-11 4663 Riverside Vail Lake area, Cleveland National Forest, N flank and summit of Wild Horse Peak, Agua Tibia Mtns 999 Comment
  SEINET11563899  Carex fracta P. F. Zika, N. Otting 2010-8-3 Riverside Lake Fulmor, above Rt 243, Hall Canyon, Black Mtn., San Jacinto Mtns. 1650 Comment
  UCR143644  Carex praegracilis A. C. Sanders, Et al. 1996-5-1 18119 Riverside San Bernardino Mtns, Morongo Indian Reservation, vicinity of natural pond and bog at SE edge of Burro Flats 1100 Comment
  CAS-BOT-BC117871  Carex sartwelliana P. M. Kamb 1947-5-17 525 Riverside Hall Canyon, San Jacinto Mts. 1645 Comment
  CAS-BOT-BC117872  Carex sartwelliana P. M. Kamb 1948-7-3 1144 Riverside Hall Canyon, San Jacinto Mts. 1645 Comment
  RSA126700  Carex senta Peter H. Raven 1959-5-18 s.n. Riverside Lake Fulmor, San Jacinto Mountains Comment
  RSA608702  Carex senta L. C. Wheeler 1961-6-20 7893 Riverside West Fork Tahquitz Creek 2377 Comment
  UCR4013  Carex senta Val Chase 1965-4-30 105 Riverside San Jacinto Mountains, San Bernardino National Forest. 15 yards downstream from the dam & spillway of Lake Fulmor. 1524 Comment
  UC1219  Carex subfusca H. M. Hall July, 1901 2416 Riverside near summit San Jacinto Mountains 3291 Comment
  RSA500192  Carex subfusca Steve Boyd, Timothy S. Ross, L. Arnseth 1989-5-7 3552 Riverside Vail Lake area, pond and freshwater marsh in Kolb Crk. just south of the lake. Comment
  UCR217305  Castela emoryi Nathan Moorhatch, Shari Norton 2010-5-7 s.n. Riverside Sonoran (Colorado) Desert, north of Desert Center, north of the golf course and east of the bend in Eagle Mountain Road 198 Comment
  RSA744928  Castela emoryi Michael Honer, Theresa Miller 2005-3-11 2066 - B Riverside Rice Valley; 4.5 mi. SSE of Rice; 1.5 mi. E of ATSF railway. 220 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
  SBBG66921  Castilleja affinis M. N. Ackley -Mar-1922 1039 Riverside Murrieta Hot Springs 398 Comment
  SEINET10582737  Castilleja affinis Rimo Bacigalupi 1952-4-1 Bacigalupi 3595 Riverside At edge of chaparral, southeastner end of Pauba Valley, along State Highway No. 71, 12 miles west of Aguanga. 427 Comment
  JEPS8558  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. F. MacBride and Ruth D. Sanderson 1952-4-1 3595 Riverside 12 mi w Aguanga (along State Highway 71, se end of Pauba Valley); Pauba Valley 426 Comment
  SBBG26800  Castilleja affinis subsp. affinis C. B. Clokey, I. W. Clokey, B. Templeton 1930-4-15 4729 Riverside Perris to Gavilan Pk 600 Comment
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Nov 8 2011
  RSA448695  Castilleja applegatei subsp. martinii N. C. Cooper 1945-5-24 1624 Riverside Big Oaks Canyon, Banning. 1220 Comment
  RSA0010920  Castilleja densiflora subsp. gracilis Steve Boyd, Dave Bramlet 1996-4-19 8594 Riverside San Jacinto Valley, ca 2 air miles NE of Winchester and 0.5 mi W of Ryan Airfield in the upper Salt Creek floodplain, at the N end of California Avenue, N of Stetson Avenue, W of the Metropolitan Water District canal. 457 Comment
  UCR133187  Castilleja densiflora subsp. gracilis Frank C. Vasek 1978-5-12 s.n. Riverside Santa Ana Mtns., Tenaja Road, c. 0.5 mi. east of Clinton Keith Rd. 671 Comment
  SBBG47446  Castilleja exserta N. C. Cooper 1949-4-21 1127 Riverside Banning 701 Comment
  UCR156094  Castilleja exserta T. B. Salvato, Kent Beaman 2005-5-16 810 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
  RSA586141  Castilleja exserta subsp. exserta D. L. Banks 1995-4-11 184 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the Dripping Springs Trai. 512 Comment
  SEINET3078515 Image available Castilleja exserta subsp. exserta F. A. Rauch 1966-4-4 s.n. Riverside East slope of Sugarloaf Mtn. (Box Springs Mtns.) 457 Comment
  RSA234083  Castilleja foliolosa Robert F. Thorne, E. W. Lathrop 1969-6-6 39327 Riverside Santa Rosa Plateau: Rancho California. 610 Comment
  UCD122503  Castilleja foliolosa C. L. Hitchcock 1966-3-15 24164 Riverside About 10 miles n.e. of Temecula. Comment
  RSA561104  Castilleja minor subsp. spiralis Steve D. Boyd, Tim S. Ross, Dave Bramlet 1993-5-12 7329 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Los Alamos canyon downstream to confluence with Tenaja Canyon, 365 Comment
  CAS-BOT-BC38139  Caulanthus amplexicaulis H. M. Hall 1900-6-1 s.n. Riverside Riverside. Comment
  UC56735  Caulanthus hallii W. L. Jepson and H. M. Hall May 17 1901-Jun 1 1901 1902 Riverside Santa Rosa Mt., Coyote Canyon 1584 Comment
  SDSU18411  Caulanthus heterophyllus C. Matt Guilliams 2008-2-21 467 Riverside El Sobrante Landfill preserve area, western Riverside County, east of Interstate 15 off Temescal Canyon Road. Ca. 5 kilometers east off freeway. Access through landfill entrance. 449 Comment
  UCR121204  Caulanthus heterophyllus D. E. Bramlet 1991-5-10 2141 Riverside Perris-Aguanga Basin region, North Domenigoni Hills, 4300-4500 ft. SE from end of Warren Rd., W side of large peak in Sec. 31, just above saddle 610 Comment
  RSA651818  Caulanthus inflatus J. Bruce Smiley 1940-3-19 s.n. Riverside 3,000 ft. Mojave (west) 914 Comment
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Mar 10 2013
  CAS-BOT-BC40266  Caulanthus lasiophyllus Steve Boyd; S. Meury; R. Noyes; L. Arnseth; D. Nordin; T. Ross 1988-3-10 2172 Riverside Palen Pass at the north end of the Palen Mountains. 500 Comment
  RSA606768  Ceanothus crassifolius Jon E. Keeley 1996-5-5 27358 Riverside Chaparral S of Hwy 79 on Woodchuck Rd., E of Temecula. 183 Comment
  UC1071025  Ceanothus crassifolius A. Lewis 1934-3-4 310 Riverside Tin Mine Canyon Corona quad, Cleveland Nat. For. 670 Comment
  UCR174370  Ceanothus crassifolius A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32658 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
  UCSB41256  Ceanothus crassifolius Cowan, Clark 1978-4-25 Riverside 6.7mi (10.7 km) SW on 74 from jct w/ 71, 4.6 mi (7.3 km) from Lake Elsinore, Sta. Ana Mts. Cleveland Nat. F.; Whittaker transect #W-229. Comment
  POM146233  Ceanothus cuneatus J. B. Feudge 1925-3-15 1707 Riverside near Gilman Relief Hot Springs 610 Comment
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Mar 13 2011
  SD129398  Ceanothus cuneatus Ed LaRue May 1989 Riverside Hills east of Beaumont, along Potrero Creek, 1/2 mi. E of old San Jacinto Nuevo Y Potrero land grant 701 Comment
  RSA5478  Ceanothus greggii var. perplexans Carl B. Wolf 1932-5-24 3655 Riverside Snow Creek, north base San Jacinto Mountains. 1 mile above the Fish Hatchery. 793 Comment
  RSA67298  Ceanothus greggii var. perplexans G. R. Campbell 1951-4-22 15996 Riverside Palms to Pines Hwy [74], 1 mi. e. of road to Santa Rosa Mt.[Santa Rosa Mt Truck Trail], 1372 Comment
  UC1070690  Ceanothus greggii var. perplexans A. E. Wieslander 1929-4-2 52 Riverside n slope San Jacinto Mts. San Jacinto quad. 1371 Comment
  UC1070694  Ceanothus greggii var. perplexans A. Lewis Jul 1932 128 Riverside White-water Canyon 822 Comment
  UC870570  Ceanothus greggii var. vestitus P. A. Munz, I. M. Johnston 1922-5-19 5447 Riverside Kenworthy, San Jacinto Mountains 1432 Comment
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Mar 25 2011
  CAS-BOT-BC51288  Ceanothus leucodermis H. E. McMinn 1925-7-2 1523 Riverside Idyllwild grade - San Jacinto Mt. Comment
  LA44870  Ceanothus leucodermis W. Pequegnat; 1939-4-8 44 Riverside Santa Ana Mountains Comment
  RSA77158  Ceanothus leucodermis F. W. Peirson 1914-04 730 Riverside Whitewater at head of Coachella Valley. Comment
  UCSB4009  Ceanothus leucodermis Gill, Robert 1960-3-23 Riverside Snow Canyon - near end of road 563 Comment
  RSA0028382  Ceanothus leucodermis N. Cooper 1944-6-17 1444 Riverside San Jacinto Mts. Pine Cove. 1524 Comment
  RSA398912  Ceanothus oliganthus Anstruther Davidson 1921-4-1 3406 Riverside Banning. Comment
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Mar 27 2011
  RSA569995  Ceanothus ophiochilus Steve Boyd, Kyle Boyd 1993-3-28 7910 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
  RSA606751  Ceanothus ophiochilus Jon E. Keeley 1996-5-13 27412 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
  UCR89468  Ceanothus ophiochilus Steve Boyd, T. S. Ross 1993-3-23 7897 Riverside Palomar Mountains, Palomar Range south of Vail Lake at the N base of Agua Tibia Mtn., Agua Tibia Wilderness area, Cleveland National Forest, along trail extending S from end of Woodchuck Rd. 671 Comment
  CAS-BOT-BC51919  Ceanothus perplexans Vernon Bailey 1907-6-11 s.n. Riverside San Jacinto Mts., East slope above Palm Springs Comment
  CAS-BOT-BC51925  Ceanothus perplexans Edmund C. Jaeger 1921-6-14 s.n. Riverside Mac Mullen Trail, east slope San Jacinto Mts. Comment
  CAS-BOT-BC63252  Ceanothus tomentosus var. olivaceus L. R. Abrams 1935-4-7 13680 Riverside San Juan Canon, Ortega Highway, 2 mi. above Orange Co. line. Comment
  CAS-BOT-BC63256  Ceanothus tomentosus var. olivaceus D. Bramlet 1999-4-10 2733 Riverside Bachelor Mountain. Alongside the existing dirt road leading to Bachelor Mth., on a plateau area 305 m. e. of peak. This 737 Comment
  UC1131361  Cenchrus longispinus H. S. Yates 1937-6-28 6741 Riverside near Indio; Thermal Quad. Comment
  NY532374  Centaurea repens S. D. Boyd 1989-7-6 3758 Riverside S of Jurupa Rd, E of intersection with Van Buren Ave. Comment
  UCR26085  Centaurea repens John C. Roos, L. Roos 1951-10-24 5335 Riverside City of Riverside, between Arlington area and Pedley 229 Comment
  RSA734492  Centaurium venustum subsp. venustum M. Wall 2008-6-20 487 Riverside San Jacinto River east of Hemet off Hwy 74 just east of confluence with the North Fork; 637 Comment
  JEPS8778  Centromadia pungens subsp. laevis Rimo Bacigalupi with G. T. Robbins 1954-5-16 4466 Riverside one-half mi w of Lakeview and just e of Lakeview (formerly Ginsberg) Hot Springs; Valley of San Jacinto 432 Comment
  RSA0086790  Centromadia pungens subsp. laevis D. E. Bramlet 2005-7-13 3904 Riverside Perris-Aguanga Basin Region; San Jacinto Valley: Bloome Parcel, 2550 ft north of San Jacinto River, 1580 ft south of South Contour Rd., 4700 ft east of Mystic Lake Duck Club. 433 Comment
  RSA683882  Centromadia pungens subsp. laevis Barry L. Jones 2003-5-29 s.n. Riverside USGS quad. For Wildomar & Lake Elsinore, Lake Elsinore area, just north of the intersection of Corydon Road & Grand road. Comment
  SD155512  Centromadia pungens subsp. laevis Craig Reiser 2001-4-27 Riverside E side of Mystic Lake and ca. 50 yards W of Gilman Hot Springs Road,near San Jacinto. Comment
  UCR154758  Cerastium glomeratum T. B. Salvato, Kent Beaman 2005-5-16 783 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
  RSA543837  Cerastium glomeratum Steve Boyd, Orlando Mistretta 1991-5-22 6288 Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dorland Mtn, W of Kolb Crk. 549 Comment
  UC596757  Cercidium floridum subsp. floridum R. J. S. Feb. 1904 305 Riverside Coachella Desert Comment
  JEPS44705  Cercocarpus Carl V. Meyer 1929-1-5 689 Riverside Tahquitz Peak, near summit Tahquitz Peak Comment
  RSA575081  Cercocarpus betuloides Steve D. Boyd 1982-4-27 s.n. Riverside Gavilan Hills region, eastern flank of the range in Santa Rosa Canyon, along Santa Rosa Road adjacent to small, old quarry. 610 Comment
  CAS-BOT-BC135451  Cercocarpus betuloides var. betuloides Lathrop; Thorne 1967-9-26 6608 Riverside Tenaja Guard Station, 10 mi. NW of Murrieta Comment
  CAS-BOT-BC135452  Cercocarpus betuloides var. betuloides H. E. McMinn 1925-7-2 1510 Riverside Tahquitz Trail to Tahquitz Pk. - San Jacinto Mts. Comment
  RSA522775  Cercocarpus minutiflorus Steve D. Boyd, Tim S. Ross, L. Arnseth 1990-3-29 3882 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
  CAS-BOT-BC279438  Chaenactis Elizabeth McClintock 1964-4-8 s.n. Riverside East of Indio Comment
  CAS-BOT-BC293742  Chaenactis carphoclinia Mona Bourell 1987-4-14 3269 Riverside BLM California Conservation Area, Hwy 195. Spur off of Box Canyon, near Mecca 150 Comment
  CDA7370  Chaenactis fremontii T. C. Fuller 1962-4-3 7989 Riverside Highway 99 to Indio, 0.2 mile north of turn-off to Twenty Nine Palms. 0 Comment
  HSC5293  Chaenactis fremontii C. L. Hitchcock, C. V. Muhlick 1964-3-22 23265 Riverside Pinto Basin; Joshua Tree National Monument Comment
  RSA100836  Chaenactis fremontii Palmer Stockwell 1940-4-24 1507 Riverside 1 mile E of Banning. Comment
  RSA33655  Chaenactis fremontii N. C. Cooper 1944-3-25 996 Riverside Cabazon 549 Comment
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Nov 22 2011
  SBBG54452  Chaenactis fremontii L. R. Abrams 1926-3-25 11045 Riverside between Banning and Cabazon Comment
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Mar 13 2011
  UC1287049  Chaenactis fremontii C. L. Hitchcock 1966-3-16 24208 Riverside 4 mi s of Palm Desert (along Palms to Pines Hiway) 609 Comment
  UC1930183  Chaenactis fremontii Steve Boyd, Amber Maurice, Pesach Lubinsky, L. Lubinsky 2003-4-17 10462 Riverside Peninsular Ranges, San Jacinto Mountains / Colorado Desert; East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  UCR260837  Chaenactis fremontii A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-25 41516 Riverside San Gorgonio Pass, 2.5 miles ESE of Cabazon, north of the San Gorgonio River wash on the alluvial slope east of the water bottling plant and Elm St. 463 Comment
  SD140205  Chaenactis glabriuscula Scott White 1993-4-22 1229 Riverside North Alberhill Ranch, in hills north of Walker Canyon. 487 Comment
  UCR34887  Chaenactis glabriuscula L. B. Ziegler 1967-6-15 160 Riverside San Jacinto Mtns, Bautista Creek Canyon 732 Comment
  JEPS30914  Chaenactis glabriuscula var. glabriuscula P. Stockwell 1940-4-24 1506 Riverside 1 mi e Banning Comment
  SEINET7063048  Chaenactis glabriuscula var. glabriuscula A. G. Vestal 1963-5-20 s.n. Riverside Long Valley Road at Temecula and at the junction with Route 395 (115). UTM Zone 11, 485910mE, 3706825mN. (WGS84/NAD83). 308 Comment
  UCR132934  Chaenactis parishii John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  RSA545217  Chamaesyce R. F. Thorne 1970-10 41878 Riverside San Bernardino Mountains- Whitewater canyon: ca. 1350 ft. near bridge and Whitewater Post Office to ca. 2000 ft. up the canyon toward fish hatchery. 610 Comment
  RSA549998  Chamaesyce maculata O. F. Clarke 1976-9-23 s.n. Riverside Common weed on UCR campus. Comment
  POM432476  Chamaesyce pediculifera M. B. Dunkle 1933-5-6 3449 a Riverside Painted Canyon Comment
  HSC78517  Chamaesyce polycarpa J. C. Roos 1946-10-26 3145 Riverside Chuckwalla Mtns. Comment
  HSC83003  Chamaesyce polycarpa G. K. Helmkamp 1985-6-28 600 Riverside S of Morongo Valley, at the lower end of the canyon where it opens into the W end of the Coachella Valley 503 Comment
  JOTR28794  Chamaesyce polycarpa La Doux, Tasha 2005-3-30 1063 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  SBBG67754  Chamaesyce polycarpa E. C. Jaeger 1925-7-2 Riverside Palm Springs Comment
  UC1547000  Chamaesyce polycarpa Leila M. Shultz and John S. Shultz 1985-4-17 8316 Riverside southern extension of the Big Maria Mtns Comment
  UC303788  Chamaesyce polycarpa Ivan Johnston 1917-4-4 Riverside Palm Canyon 274 Comment
  RSA0062785  Chamaesyce setiloba Duncan S. Bell, Evan Meyer 2014-10-22 7655 Riverside Orocopia Mountains; southwestern section of range; collecting in an unnamed canyon to the southeast of Orocopia Canyon; about 3.6 air miles north northeast of Dos Palmas. 404 Comment
  UCR112399  Cheilanthes clevelandii A. C. Sanders, Mitch Provance, E. J. Lawlor 2000-1-23 23312 Riverside Lake Skinner area, summit of Black Mtn. 915 Comment
  UCR22082  Cheilanthes covillei Steve Boyd 1980-5-3 190 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 625 Comment
  UCR22130  Cheilanthes newberryi Steve Boyd 1980-5-3 191 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 625 Comment
  UCR97464  Cheilanthes newberryi B. G. Pitzer 1997-3-23 2999 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
  RSA0042110  Cheilanthes parryi Duncan S. Bell, LeRoy Gross 2014-3-6 6193 Riverside Santa Rosa Mountains; Toro Canyon on the east side of Martinez Mountain. 259 Comment
  UCSB30930  Cheilanthes parryi Parker, V. 1974-4-5 Riverside Just outside of the Phillip Boyd Desert Research Station near Palm Desert 289 Comment
  CAS-BOT-BC70380  Cheilanthes viscida Rateaver 1944-2-21 69 Riverside Tahquitz Canyon, Palm Springs Comment
  UC668413  Cheilanthes viscida Annie M. Alexander and Louise Kellogg 1941-4-22 2060 Riverside Whitewater Canyon; Colorado Desert 548 Comment
  CAS-BOT-BC168091  Chenopodium A. C. Sanders 2001-11-25 24888 Riverside Moreno Valley, Hope Depot at Pigeon Pass Rd. on north side of Hwy 60 503 Comment
  HSC80298  Chenopodium album Steve Boyd 1985-7-23 1012 Riverside De Luz Road, 7.6 mi W of Rancho California, where Sandia Creek crosses road. 335 Comment
  SD146317  Chenopodium album A. C. Sanders, Mitch Provance 2000-10-16 23722 Riverside Riverside; railroad right of way between Watkins Dr. and Campus View Dr., near site of Lemona siding. 334 Comment
  UCR278885  Chenopodium album Mitch Provance 2011-6-9 17193 Riverside Santa Ana River Valley, Jurupa Valley, Pedley area, Horseshoe Lake, west of Van Buren Blvd., west of the corner and Studio Pl. and Lakeview Ave. 219 Comment
  RSA125543  Chenopodium album var. stevensii R. Weatherby 1949-5-13 413 Riverside La Sierra district, Arlington 152 Comment
  UCR20418  Chenopodium ambrosioides Dr. H. de Forest, Jack Rempel 1933-10-29 s.n. Riverside San Jacinto Mountains, north base of mountains, Snow Creek Canyon 549 Comment
  UC1394437  Chenopodium berlandieri H. A. Wahl 1966-9-17 21804 Riverside 5 mi s Idyllwild; San Jacinto Mountains 914 Comment
  UCR69753  Chenopodium berlandieri A. C. Sanders, Chet McGaugh 1991-7-19 11154 Riverside Peninsular Range, Murrieta Hot Springs, large vernal pool on the south side of Murrieta Hot Springs Road, east of Via Princesa & north of Calle del Lago 348 Comment
  UCR140733  Chenopodium californicum A. C. Sanders 2004-5-12 27869 Riverside Elsinore Basin Region, Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek 378 Comment
  RSA676093  Chenopodium murale Scott D. White 2001-4-12 8316 Riverside Colorado Desert: Shaver s Valley. South of the I-10 Freeway, ca. 15 miles east of Indio jtn. I-10 / SR 111. Bajadas and washes adjacent to powerline access roads at unnamed freeway exit accessing pump station. 320 Comment
  UCR112475  Chenopodium pratericola A. C. Sanders, Mitch Provance, T. B. Salvato 2000-4-18 23325 Riverside Coachella Valley, along Dillon Rd. at junction with Tyler, north of I-10, east of Indio and north of Coachella 5 Comment
  UCR156372  Chenopodium pumilio T. B. Salvato, Kent Beaman 2005-5-16 865 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
  CLARK-A1528-2281  Chilopsis linearis John C. Roos 1946-9-2 2938 Riverside San Timoteo Canyon 701 Comment
  CLARK-A1528-2282  Chilopsis linearis John C. Roos 1943-5-23 2669 Riverside Dry Morongo Wash Comment
  RSA455307  Chilopsis linearis L. C. Wheeler 1933-12-1 2281 Riverside San Gorgonia Wash at S. P. RR, San Gorgonio Pass. 640 Comment
  LA204142  Chilopsis linearis subsp. arcuata Roxana S. Ferris; Ruth P. Rossbach 1938-5-16 9582 Riverside Mecca Hills 2 mi. up Painted Canyon Comment
  UC65010  Chilopsis linearis subsp. arcuata E. E. Schellenger 1905-10-16 32 Riverside Palm Springs Colorado Desert, Palm Springs Comment
  UC729662  Chilopsis linearis subsp. arcuata Carl B. Wolf 1932-5-25 3674 Riverside 1 mi. below Fish Hatchery; n. base San Jacinto Mts., Snow Creek Canyon 396 Comment
  UCR260163  Chloracantha spinosa Duncan S. Bell 2013-10-29 6089 Riverside Sonoran (Colorado) Desert, Hayfield Dry Lake; north of Interstate 10, about a mile southwest of the pumping station 403 Comment
  CAS-BOT-BC217964  Chloris truncata A. C. Sanders 1997-3-26 20138 Riverside Adjacent to the Skinner entrance road, ca. 1 km NE of Borel Rd. Lake Skinner Area 472 Comment
  UCR130511  Chloris truncata R. E. Riefner Jr. 2003-5-27 03- 254 Riverside Perris-Aguanga Region, Perris Valley, Rider Street near Perris Valley Storm Drain 457 Comment
  RSA369229  Chlorogalum parviflorum Anstruther Davidson 1910-3-1 2468 Riverside Near Riverside. Comment
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Apr 23 2011
  SBBG1392  Chorizanthe brevicornu var. brevicornu D. Myrick 1964-4-30 836 Riverside Palms to Pines Hwy 74, 8 mi W of Palm Desert 1066 Comment
  UC635065  Chorizanthe brevicornu var. brevicornu Margaret Stason 1927-2-12 Riverside 1000-Palm Canyon , 1000-Palm Canyon (Colorado Desert) Comment
  UCR137560  Chorizanthe coriacea A. C. Sanders 2004-5-5 27758 Riverside Gavilan Hills, route of proposed realignment of Gavilan Rd., SSW from Multiview Rd. intersection, c. 0.25 mi. NNW of Harford Spring, c. 1.2 mi. NE of Gavilan Peak 579 Comment
  UCR278090  Chorizanthe coriacea Tim Searl 2011-6-4 s.n. Riverside Gavilan Hills, Kamlin Mission Church property, c. 5.7 miles west of Perris and c. 0.5 mile west of Steele Valley 686 Comment
  UCR87638  Chorizanthe coriacea A. C. Sanders 1994-5-29 14545 Riverside San Bernardino Mtns, Morongo Indian Reservation, low pass between Millard Canyon and Potrero Creek 793 Comment
  CAS-BOT-BC191855  Chorizanthe corrugata A. C. Sanders; E. J. Lawlor 1992-4-4 12135 Riverside McCoy Mountains, within 1/2 mail of McCoy Spring. Colorado Desert 243 Comment
  HSC66732  Chorizanthe corrugata D. L. Goforth, D. Reed 1980-3-25 356 Riverside Hwy. 195, 6 miles E of Mecca. Box Canyon, Mecca Hills 122 Comment
  RSA487419  Chorizanthe fimbriata Steve Myers 1988-5-17 s.n. Riverside Santa Rosa Plateau area W of Murrieta, Via Majorca .25 mi. N of the intersection with Avenida Arboles. Comment
  RSA648275  Chorizanthe fimbriata var. laciniata Tamara Joy Hanna 1991-5-19 43 Riverside Off of Coyote Canyon Road (FWD dirt) on a walking trail approx. 3 miles from the gated (back) entrance to the Anza-Borrego State Park via Horse Canyon. Comment
  CAS-BOT-BC460910  Chorizanthe leptotheca W. P. Vestal; A. G. Vestal 1947-3-30 s.n. Riverside About 2 miles up San Jacinto Canyon 518 Comment
  HSC85265  Chorizanthe leptotheca Steve Boyd 1986-4-22 1758 Riverside Temescal Canyon: Benches of Indian wash just S of Hwy. 15 Comment
  RSA572973  Chorizanthe leptotheca Steve Boyd 1986-4-19 1706 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Road. Comment
  SD22479  Chorizanthe leptotheca Susan G. Stokes 1933-7-1 Riverside Idyllwild Comment
  UCR104902  Chorizanthe parryi A. C. Sanders 1997-3-19 20009 Riverside Lake Skinner area, slopes north of Tucalota Creek c. 3/4 mi. (1.25 km) east of the lake 470 Comment
  NY468365  Chorizanthe parryi var. parryi J. L. Reveal 1988-5-23 6867 Riverside Along California Highway 75 at milepost 48, 3 miles east of Fairview Avenue in Valle Vista, on sandy granitic soil north of the highway and south of the San Jacinto River 609.6 Comment
  UCR217504  Chorizanthe parryi var. parryi Jeff B. Galvin, Diane Menuz 2008-4-20 15 Riverside Perris-Aguanga Basin, Lake Skinner area, east of Rawson Cyn and north of Black Mtn 650 Comment
  RSA585525  Chorizanthe polygonoides var. longispina D. L. Banks, S. D. Boyd 1995-5-9 390 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area, W of Woodchuck Campground. 701 Comment
  UC2029936  Chorizanthe polygonoides var. longispina Steve Boyd 2001-4-12 10408 Riverside GAVILAN HILLS REGION: Southeast base of Alberhill Mountain on flats north of Nichols Road and West of Pierce Street, in the vicinity of the site of Terra Cotta. Comment
  UCR155809  Chorizanthe polygonoides var. longispina Chris E. True 2005-4-25 s.n. Riverside Temecula Region, summit of Oak Mountain, north of Vail Lake 823 Comment
  UCR217538  Chorizanthe polygonoides var. longispina Diane Menuz 2008-3-27 388 Riverside Peninsular Range: Santa Ana Mountains, Santa Rosa Plateau. Along Waterline Rd., near Mesa de Burro. 581 Comment
  UC57063  Chorizanthe rigida E. E. Schellenger 1911-4-24 Riverside s Palm Springs; Colorado Desert, s of Palm Springs Comment
  RSA0102795  Chorizanthe spinosa Duncan S. Bell, Kay Evelina Lewis-Jones, Isaac Marck, Evan Meyer 2015-4-23 8105 Riverside Rice Valley, to the east of the Arica Mountains, about 6 air miles south southeast of the ghost town of Rice. 211 Comment
  UCR213545  Chorizanthe staticoides Michael Honer 2003-7-15 1847 Riverside Peninsular Range; Santa Ana Mtns., Rainbow area, just north of the San Diego Co. boundary and west of the I-15 Freeway 518 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
  CLARK-A1528-190  Chrysothamnus paniculatus Oscar F. Clarke 1969-11-10 Riverside Palm Springs Station Comment
  RSA799240  Chylismia brevipes subsp. brevipes Thomas Stoughton, Duncan S. Bell, Debra Nelson 2011-2-20 748 Riverside North side of the Mecca hills, side canyon between the head of Box Canyon and Shavers Well, roughly 7.4 miles from Interstate 10 on Box Canyon Road. 305 Comment
  UC218061  Chylismia brevipes subsp. brevipes P. A. Munz, D. Keck Apr 9 1922-Apr 12 1922 4894 Riverside vicinity of Corn Springs Colorado Desert, Chuckwalla Mountains 609 Comment
  UC667280  Chylismia cardiophylla subsp. cardiophylla Annie M. Alexander and Louise Kellogg 1941-5-26 2238 Riverside Monsen Canyon Colorado Desert, Eagle Mountains 975 Comment
  RSA0123363  Chylismia claviformis subsp. aurantiaca Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9041 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
  UC1183579  Chylismia claviformis subsp. aurantiaca W. M. Klein 1958-2-11 38 Riverside between Cathedral City and Palm Village (on CA 111 to Indio) 96 Comment
  UC1184361  Chylismia claviformis subsp. aurantiaca Peter H. Raven 1958-3-16 11862 Riverside Fried Liver Wash Joshua Tree National Monument, Pinto Basin Comment
  UC68521  Chylismia claviformis subsp. aurantiaca H. M. Hall Apr. 1905 5835 Riverside near Mecca; Colorado Desert -30 Comment
  UC708731  Chylismia claviformis subsp. aurantiaca H. K. Wagnon 1944-4-2 381 Riverside along fence w cold storage plant; Palm Springs, Torney General Hospital Comment
  UC873926  Chylismia claviformis subsp. aurantiaca C. L. Hitchcock 1940-3-29 5865 Riverside ca 100 yd e Spring; Cottonwood Canyon Comment
  UCR22001  Cirsium vulgare Steve Boyd 1980-7-6 321 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  RSA329670  Cistanthe monandra Gary D. Wallace 1966-3-26 250 Riverside Whitewater Canyon; 13 mi. E. of Banning, San Bernardino Nat l For. 427 Comment
  RSA387366  Cistanthe monandra Steve Boyd 1986-4-19 1701 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Road. Comment
  SDSU8708  Clarkia purpurea Wende E. Rehlander 1983-5-22 105 Riverside Open rolling hills in upper part of Reche Canyon, approx. 7.5 miles from NW end of Reche Canyon Road, 0.5 mi. SE of Console Springs, and about 5 mi. south of Redlands. Comment
  SEINET6944613  Clarkia purpurea subsp. quadrivulnera W. P. Vestal, A. G. Vestal 1955-4-21 s.n. Riverside Just west of Perris, at base of Gavilan Hills. Comment
  RSA0059934  Clarkia similis D. L. Banks, Steve D. Boyd 1995-5-3 185 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area. N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 500 Comment
  UCR155311  Claytonia parviflora A. C. Sanders 2005-5-4 29852 Riverside Gavilan Hills near Riverside, c. 1 km east and southeast of Gavilan Peak 625 Comment
  CAS-BOT-BC439506  Claytonia parviflora subsp. parviflora Edmund C. Jaeger 1921-7-10 s.n. Riverside Stone Creek, San Jacinto Mts. 1584 Comment
  UCR372  Claytonia parviflora subsp. parviflora Linda Stangor 1974-5-27 s.n. Riverside Peninsular Range, San Jacinto Mtns., Banning to Idyllwild Hwy [243], 3 mi. past 4000 ft. marker [= c. 3 mi SE of McMullen Flat] 1311 Comment
  UCR60610  Claytonia parviflora subsp. viridis Steve Boyd, T. S. Ross, L. Arnseth 1989-4-1 3174 Riverside Peninsular Range, Vail Lake area; hills just to SW of the dam 488 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
  CLARK-A1528-3851  Clematis ligusticifolia John C. Roos 1965-10-7 Riverside Riverside Comment
  CLARK-A1528-3852  Clematis ligusticifolia John C. Roos 1965-10-7 Riverside Riverside Comment
  RSA314403  Clematis ligusticifolia Robert F. Thorne, Kay L. Wright, Ricahrd K. Benjamin 1982-10-8 55396 Riverside Side canyon on W side of Whitewater Cyn, ca. 3.3 mi. N of Whitewater Post Office. 595 Comment
  CAS-BOT-BC126746  Clematis pauciflora A. C. Sanders; T. B. Salvato; Matthew Malle; Jonas Winbolt; Katie A. Kurtz 2010-4-7 37803 Riverside Peninsular Range: southeastern Gavilan Hills north of Alberhill, west of dirt extension of Lake St., 1.0 mi. NW (341 deg. ) of intersection of I-15 and Lake St. 526 Comment
  CHSC1440  Clematis pauciflora E. Thomas 1940-3-10 Riverside San Jacinto foothills. Comment
  UCR17484  Clematis pauciflora R. S. Woglum 1934-3-18 0625 Riverside San Jacinto Mtns., Snow Creek, Coachella Valley Comment
  POM9597  Clematis pauciflora I. M. Johnston 1920-5-8 s.n. Riverside Butte due west of Lakeview Comment
  RSA440812  Cleome isomeris Robert L. Dressler 1949-3-19 432 Riverside Coxcomb Mountains, 23 miles NE of Desert Center Comment
  JOTR32629  Coleogyne ramosissima La Doux, Tasha, K. Matthews, S. Szabo, J. Van Warmerdam, B. Truesdell 2007-10-4 2552 Riverside Joshua Tree National Park. Little San Bernardino Mountains: Lower Covington Flat, southeast of trailhead heading toward Smith Water Canyon (Stop 2) 1398 Comment
  RSA0117440  Collinsia concolor Scott D. White, Michael Honer 2003-4-4 8940 Riverside Temescal Valley: Dissected bajada bench, below and east of Horsethief Canyon; immediately S of I-15 Freeway. 366 Comment
  UCR193330  Collinsia concolor A. C. Sanders, Tim Thomas, T. B. Salvato 2008-6-24 35594 Riverside Peninsular Range; San Jacinto Mtns., Coldwater Creek watershed, along foot trail from May Valley Road toward mapped spring 1560 Comment
  UCR281529  Collinsia concolor Mitch Provance, Matt K. Beyers, John Hazlett 2017-3-30 317- 90 Riverside Temescal Valley, S of the 15 Fwy., 0.3 miles W of Hostettler Rd. 384 Comment
  RSA0117400  Collinsia concolor N. C. Cooper 1945-5-24 1642 Riverside Big Oaks Canyon, Banning. 1220 Comment
  CSUSB916  Collinsia heterophylla Steve Kulju 1974-5-16 Riverside Santa Ana Mountains Santa Ana Mountains near Murrieta on Tenaja Road, 6.7 miles southwest of Washington Ave. 548 Comment
  UCR216362  Collinsia heterophylla Mike Bell 2008-4-27 013 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau Ecological Reserve, Adobe Loop Trail 557 Comment
  UCR92659  Collinsia heterophylla Scott D. White 1996-3-31 3861 Riverside Elsinore Basin: Bundy Canyon, SE of Lake Elsinore. About 1 road mi (~0.2 mi) east of Bundy Canyon Rd. exit from I-15 freeway 451 Comment
  UCR281924  Condalia globosa var. pubescens A. C. Sanders, Jim Malusa 2017-9-20 43346 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, in canyon 1.5 km west (276 deg. ) of Tabaseca Tank, 6.7 km SE of Salt Creek at mouth of Red Canyon 602 Comment
  RSA463104  Conium maculatum Steve Myers 1987-6-24 s.n. Riverside Murrietta Creek, at confluence with Temecula Creek, near the town of Murrieta. 290 Comment
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May 6 2020
  RSA394802  Convolvulus arvensis Luther A. Rice 1891-6-1 s.n. Riverside Near Riverside Comment
  RSA191393  Conyza bonariensis E. W. Lathrop, R. F. Thorne 1967-10-27 6677 Riverside 5 mi. NW of Murrietta, Santa Rosa Ranch. Comment
  RSA508338  Conyza bonariensis Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mtns., ca. 1 mi SE of town on Nuevo. 640 Comment
  UCR119423  Conyza coulteri Mitch Provance 1998-6-20 707 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
  UCR151096  Cordylanthus nevinii Scott D. White, Julie Greene 1998-8-1 6968 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
  UCR227603  Cordylanthus rigidus Duncan S. Bell, Ryan Parker 2010-6-15 1310 Riverside San Jacinto Mountains, San Bernardino National Forest, Rouse Ridge, c. 3 air miles southeast of junction of Hwy 74 and Forest Service Road 5S15 1063 Comment
  RSA0018450  Cordylanthus rigidus subsp. setiger J. C. Roos 1965-8-18 s.n. Riverside Thomas Valley, San Jacinto Mtns. 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
  UCR275575  Cotula coronopifolia T. B. Salvato, Jennifer Weiland 2005-6-13 605- 4 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
  RSA336210A  Crassula aquatica R. F. Thorne, M. Z. Thorne, W. Wisura 1978-5-21 51986 -A Riverside Santa Rosa Plateau: Mesa de Colorado. 610 Comment
  CAS-BOT-BC224913  Crassula connata A. C. Sanders 2011-4-6 38993 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
  RSA180336  Crassula connata E. W. Lathrop 1965-4-25 5670 Riverside 4 miles southwest of Murrieta on the De Luz Road. Comment
  UCR174942  Crassula connata Jennifer H. Jones, Toby Bartels 2006-4-23 282 Riverside Transverse Ranges; San Bernardino Mtns., Banning Pass, NE of Cabazon along powerline road and in Deep Canyon 744 Comment
  UC1287004  Crassula connata var. erectoides C. L. Hitchcock 1966-3-15 24149 Riverside 1 mi. e. Glen Ivy Hot Springs Comment
  CLARK-A1528-2618  Crassula erecta John C. Roos 1952-2-29 5373 Riverside Riverside 457 Comment
  UCR157768  Crassula tillaea T. B. Salvato, A. C. Sanders 2005-5-17 922 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
  UCR274301  Crepis T. B. Salvato, Melissa Clemons 2005-6-6 1421 Riverside Peninsular Range, Gavilan Hills, c. 0.75 mile south-southeast of Steele Peak, 0.6 mile E of Hammack Ranch, and 5 miles north-northeast of Lake Elsinore 579 Comment
  RSA735852  Cressa truxillensis Scott D. White, Justin M. Wood 2008-4-15 11875 Riverside Perris Valley: Interstate 215, between Nuevo Rd and Scott Rd. 427 Comment
  UCR281114  Cressa truxillensis Mitch Provance, John Hazlett, Matt K. Beyers, Jeremiah George 2017-5-23 517- 26 Riverside Menifee Valley, Menifee, about 0.5 miles south of Sun City, and 0.5 miles west of Romoland, SW corner of Lazy Creek Rd. and Murrieta Rd. 431 Comment
  SD119916  Crocanthemum scoparium var. vulgare Louis B. Ziegler 1971-9-29 430 Riverside Hills west of Murrieta. 409 Comment
  RSA0104610  Crossosoma bigelovii Duncan S. Bell, Evan Meyer 2014-10-29 7678 Riverside Santa Rosa Mountains; collecting in Agua Alta Canyon, to the north of Martinez Canyon, about 6 air miles southeast of the summit of Martinez Mountain. 394 Comment
  RSA85072  Crossosoma bigelovii F. W. Peirson 1935-2-22 11402 Riverside Side canyon opening at the foot of the road from Deep Canyon to Idyllwild, north base of the Santa Rosa Mtns. 366 Comment
  RSA780241  Croton californicus Stephanie Rockwood, Christi Gabriel 2011-10-12 098 Riverside Rice Valley. Highway 62 to to Blythe Rice Road. About 1 mile from highway. 229 Comment
  SBBG126041  Croton californicus J. M. Wood with D. M. Ray 2010-10-21 3024 Riverside Chuckwalla Valley 8 kilometers SW of Coxcomb Mtns and 3.5 kilometers E of Kaiser Rd 198 Comment
  SD80025  Croton californicus Nancy R. Zabriskie, Walter Zabriskie 1970-3-29 279 Riverside Andreas Canyon Club Gate on South Palm Canyon Drive, Palm Springs. 170 Comment
Read comments
Apr 17 2011
  UC868658  Croton californicus Lewis S. Rose 1938-12-18 38320 Riverside Palm Springs 137 Comment
  UCR235075  Croton californicus A. C. Sanders, John F. Green 2012-6-1 40226 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, south of I-15 between Horsethief Cyn. Rd. and Hostettler Rd. 368 Comment
  RSA480702  Croton californicus var. mohavensis H. de Forest 1924-3-28 s.n. Riverside Palm Springs. Comment
  UCR178571  Croton californicus var. mohavensis R. G. Swinney 1967-2-4 0011 Riverside Sonoran (Colorado) Desert/ San Jacinto Mtns., Snow Creek 305 Comment
  CDA17343  Crypsis schoenoides M. Tracy 2004-8-2 PDR 1116196 Riverside West Coast Turf, 31755 Winchester Rd., Winchester. 0 Comment
  SEINET239045 Image available Crypsis schoenoides A. C. Sanders, Mitch Provance 1999-9-26 23107 Riverside San Jacinto Valley: Mystic (San Jacinto) Lake 1.4 mi. SE of Jackrabbit Trail on Gilman Springs Rd. 1.4 mi. S of Eden H 433 Comment
  UCR106359  Crypsis schoenoides John Wear, N. Moorhatch 1996-9-19 s.n. Riverside Peninsular Range; San Jacinto Mtns., upper end of Garner Valley 1433 Comment
  UCR162543  Cryptantha John F. Green 2005-4-29 s.n. Riverside Upper Santa Ana River Basin, eastern end of the Jurupa Mountains, Rubidoux area, immediately south of the county line, east of Armstrong Road 335 Comment
  UCR258006  Cryptantha Mitch Provance 2003-4-5 403- 01 Riverside Jurupa Mountains, Sunnyslope neighborhood, east side of Sierra Blvd., north of west end of Lauren Ln., SW of 'Noname Mtn.' 755 Comment
  RSA788739  Cryptantha angustifolia Aaron C. Sedgwick, David Fraker 2012-3-28 29 Riverside In the Mecca Hills, take Box Canyon Rd. approximately 6 miles south of Rt. 10. 323 Comment
  UC1007234  Cryptantha angustifolia P. A. Munz 1940-3-24 15708 Riverside 2 mi n Cottonwood Springs; Eagle Mts. 914 Comment
  UC1595758  Cryptantha angustifolia W. Wisura, J. Dolan, and M. Wall 1992-3-24 4614 Riverside 4.7 mi ne Mecca (on Box Canyon Rd) Comment
  UCR138589  Cryptantha angustifolia Steve Boyd, T. S. Elias, Erika Winter 1986-2-18 1317 Riverside Western Colorado Desert, Mecca Hills: Painted Canyon north of Hwy 195 Comment
  POM118734  Cryptantha barbigera Marcus E. Jones 1924-2-28 s.n Riverside Desert Center, Colorado Desert Comment
  SD247612  Cryptantha barbigera J. Mark Porter, Leigh A. Johnson 1997-3-10 11465 Riverside Whitewater Canyon, ca. 1 mi. N of Whitewater (along Interstate 10). 473 Comment
  SJSU11357  Cryptantha barbigera A. N. Gillogly 1966-5-2 Riverside behind Univ of Calif Agricultural Extension Bldg, University of California 365 Comment
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Mar 27 2014
  UC662479  Cryptantha barbigera Philip A. Munz 1937-5-29 15102 Riverside Shumway, edge of Pinyon Flats Santa Rosa Mts., Pinyon Flats 1219 Comment
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Dec 18 2011
  POM229462  Cryptantha barbigera var. barbigera P. A. Munz 1937-5-29 15102 Riverside Edge of Pinyon Flat, Santa Rosa Mts. 1220 Comment
  UCR213611  Cryptantha corollata A. C. Sanders, Matthew Malle 2010-4-23 38003 Riverside Peninsular Range, Menifee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  RSA0079092  Cryptantha cycloptera LeRoy Gross, Leland Lubinsky, Victor Steinmann, Linda Worlow 2005-2-17 1451 Riverside Chocolate-Chuckwalla Mountains region: Corn Springs Campground in the Chuckwalla Mountains. Canyon southwest of Campground. 480 Comment
  RSA791485  Cryptantha decipiens J. Andre, T. La Doux, R. B. Kelley 2011-5-4 21077 Riverside Joshua Tree National Park; Long Canyon, up side canyon approx. 400 m. west of main canyon drainage. 1172 Comment
  POM6633  Cryptantha intermedia P. A. Munz, L. T. Street 1919-3-28 2361 Riverside San Gorgonio Pass, near Cabazon 543 Comment
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Mar 13 2011
  UC857163  Cryptantha intermedia Mary F. Spencer 1992-4-23 2063 Riverside near Banning; Millard Canyon 716 Comment
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Mar 13 2011
  UCR213602  Cryptantha intermedia A. C. Sanders, Matthew Malle 2010-4-23 37999 Riverside Peninsular Range, Menifee Hills, south of Sun City, south side of Bundy Canyon Rd. at intersection with Murrieta Rd. 518 Comment
  RSA772969  Cryptantha intermedia var. intermedia Orlando Mistretta, Duncan Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4774 Riverside San Bernardino Mountains region: Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  RSA0075620  Cryptantha intermedia var. johnstonii Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mtns., ca. 1 mi SE of town on Nuevo. 640 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
  RSA785021  Cryptantha maritima Duncan S. Bell 2012-3-18 3192 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
  RSA80739  Cryptantha maritima F. W. Peirson 1935-4-17 11474 Riverside 30 miles north of Blythe. Comment
  UC280440  Cryptantha maritima E. E. Schellenger May 1920 Riverside e of Coachella; Colorado Desert Comment
  UCR217797  Cryptantha maritima Jim Andre, T. La Doux 2010-2-28 12557 Riverside Lower Colorado River Valley, along Hwy 95 c. 25 miles north of Blythe, on east side of Big Maria Mountains, under radio tower 83 Comment
  SEINET10456345  Cryptantha maritima David B. Dunn, Dhogo; Schroeder, (UMO); Bruskin; A. Folsom 1948-3-13 Dunn 3738 Riverside Found growing in a wash. Indio Hills, Colorado Desert. Near Pushawalla. Comment
  RSA499647  Cryptantha micrantha B. C. Templeton, I. W. Clokey 1930-4-9 1073 Riverside North of Palm Springs. Colorado desert 400 Comment
  RSA659687  Cryptantha micrantha var. lepida J. C. Roos 1947-5-24 6194 Riverside San Jacinto Mtns., at the junction of Dark Canyon Camp Road with Idyllwild to Banning Road. Comment
  SBBG101668  Cryptantha micromeres S. Boyd 1991-5-20 6274 Riverside NW of Lake Elsinore, lower Rice Cyn, just inside Cleveland Nat For boundary 573 Comment
  SD152911  Cryptantha micromeres Steve Boyd, Orlando Mistretta 1992-4-23 7060 Riverside So. Santa Ana Mtns, San Mateo Canyno Wilderness Area. Along San Mateo Creek from Riverside County line, following San Mateo Trail upstream to the confluence with Bluewater Canyon. Along trail on dry, rocky slopes. 244 Comment
  SDSU14021  Cryptantha micromeres Michael G. Simpson, C. Luke, T. Sagar, S. Johnston, T. Duffy 2000-4-30 2099 Riverside Remote southeastern region of Santa Margarita Ecological Reserve (SDSU). 671 Comment
  JEPS67712  Cryptantha muricata W. L. Jepson 1901-5-19 1299 Riverside Strawberry Valley Mt. San Jacinto 1676 Comment
  UC24692  Cryptantha muricata H. M. Hall Jun 1901 2224 Riverside Onstatt Valley San Jacinto Mountains 1524 Comment
  UCR157669  Cryptantha muricata A. C. Sanders, N. Ferguson 1994-6-2 14635 Riverside San Jacinto Mtns, Bautista Canyon, c. 1 mile above the forest service boundary 850 Comment
  UCSB38660  Cryptantha muricata Cowan, Clark 1978-4-25 Riverside 6.7 mi. (10.7 km.) SW on 74 from jct. with 71, 4.6 mi. (7.3 km.) from Lake Elsinore, Santa Ana Mts. Cleveland Nat. F. Comment
  CLARK-A1528-2227  Cryptantha muricata var. jonesii John C. Roos 1950-4-15 4732 Riverside Reche Canyon 792 Comment
  RSA0079442  Cryptantha muricata var. jonesii LeRoy Gross, Valerie Soza 2003-5-8 832 Riverside San Jacinto Mountains region: North end of Rouse Ridge; South of the San Jacinto River, north of Rouse Hill Road. 777 Comment
  CLARK-A1045-103  Cryptantha pterocarya George K. Helmkamp 1977-3-20 Riverside San Jacinto Mountains flats above Deep Canyon; ; Palm Desert 15'Q 1066 Comment
  UCR268082  Cryptantha pterocarya Jim Andre 2012-4-11 20679 Riverside Mojave Desert, Joshua Tree National Park, Hidden Tank Picnic Area, 1.4 miles southwest of paved road (Utah trail) to Cottonwood Spring, c. 8 miles south of North Entrance Station, north end of Hexie Mountains 1077 Comment
  SDSU18692  Cryptantha pterocarya f. pterocarya Kristen Hasenstab, M. G. Simpson 2008-4-1 55 Riverside Joshua Tree National Park. 1000 ft southeast of Cottonwood Springs campground. Near sign for entrance from campground to Mastodon loop trail. North facing slopes. 905 Comment
  UCR16097  Cryptantha utahensis Loretta Bates 1978-4-15 s.n. Riverside Sonoran (Colorado) Desert, Box Canyon Road, 1 mi. north of Painted Canyon Road and 5 mi. north of Mecca. Comment
  UCR85189  Cryptantha utahensis A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-19 16178 Riverside Coachella Valley/San Jacinto Mtns. foothills, Chino Canyon near the Palm Springs tram station 793 Comment
  RSA394309  Cucurbita foetidissima Edwin Kline 1920-12-7 s.n. Riverside near Beaumont. Calif Comment
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Feb 12 2008
  RSA394320  Cucurbita foetidissima H. S. Gentry 1947-8-9 7644 Riverside Hind Ranch, Murrieta Comment
  SEINET3082991 Image available Cucurbita maxima A. C. Sanders 1987-9-27 7386 -A Riverside Cultivated in the vegetable garden at 422 Campus View Dr. Comment
  RSA394340  Cucurbita palmata L. C. Wheeler 1933-12-1 2286 Riverside 2 miles E Cabazon, San Gorgonio Pass 640 Comment
  RSA394344  Cucurbita palmata Anstruther Davidson 1904-5-1 1094 Riverside Palm Springs. Comment
  RSA525320  Cuscuta californica Steve Boyd, D. E. Bramlet 1990-4-29 4474 Riverside Lake Skinner County Park, S flank of Bachelor Mountain. Comment
  UCR174374  Cuscuta californica A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32622 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 591 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
  UCR113852  Cuscuta pentagona Mitch Provance, A. C. Sanders 2000-7-4 2105 Riverside Riverside, Santa Ana River Wash, between the Market St. and Riverside Ave crossings 244 Comment
  UCR111754  Cycloloma atriplicifolium S. J. Myers, C. McGaugh 1996-5-17 s.n. Riverside Santa Ana River Valley, Corona, River Road bridge over the Santa Ana River 165 Comment
  UCR263232  Cycloloma atriplicifolium A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-24 41458 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 2.95 miles ESE of Cabazon, c. 0.84 mi. NNW (335 deg. ) of One Horse Spring, south of I-10 and SE of water bottling plant, edge of wind farm 452 Comment
  RSA0114881  Cylindropuntia Marc A. Baker, Michelle Cloud-Hughes 2011-12-19 17510 Riverside Corn Springs Wash, 830 m ENE of Aztec Spring, 12 km SSE of Desert Center, north side of Chuckwalla Mountains, 84 km east of Indio. 498 Comment
  RSA303532  Cylindropuntia echinocarpa J. R. Shevock 1972-3-13 1405 Riverside Palm Springs. 183 Comment
  JOTR32384  Cynodon dactylon La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2491 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam; Small riparian pond environment with seasonally submerged muddy banks, surrounded by boulder outcrops (Stop 4) 1301 Comment
  UCD60092  Cynodon dactylon E. W. Lathrop 1965-5-24 5379 Riverside 14 miles west of Murrieta. 548 Comment
  RSA335029  Cynodon dactylon Steve Boyd 1985-7-23 1002 Riverside 5 miles west of Rancho California at junction of Rancho California Road and De Luz Road. 427 Comment
  RSA613948  Cyperus difformis A. C. Sanders 1994-7-26 15150 Riverside Santa Ana River at the Mission Blvd. / 7th Street Bridge, W foot of Mount Rubidoux. 240 Comment
  UCR47859  Cyperus eragrostis S. J. Myers 1987-6-24 s.n. Riverside Peninsular Range, Murrieta Creek, at confluence with Temecula Creek, near the town of Murrieta 290 Comment
  UCR93073  Cyperus esculentus A. C. Sanders, S. Ogg 1994-7-28 15186 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
  UCR113867  Cyperus involucratus Mitch Provance 2000-6-24 2058 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  POM123345  Cyperus laevigatus Marcus E. Jones 1925-4-24 s.n. Riverside Thousand Palms Comment
  CAS-BOT-BC113944  Cyperus odoratus Samuel B. Parish 1913-9-20 8616 Riverside In the small stream from the RR waterworks, Mecca. Salton Sink. -57 Comment
  UCD141139  Cyperus rotundus Malcolm A. Nobs; S. Galen Smith 1948-9-3 503 Riverside Thermal. Imperial Valley. Comment
  POM11657  Cystopteris fragilis P. A. Munz, I. M. Johnston 1922-5-19 5386 Riverside 3 miles west of Keen Camp. 1494 Comment
  SEINET893061  Cytisus striatus A. C. Sanders, Chet McGaugh 1991-1 11142 Riverside Murrieta Hot Springs, large vernal pool on the south side of Murrieta Hot Springs Road, east of Via Princesa and north of Calle del Lago. 347 Comment
  CLARK-A1656-872  Dalea emoryi Jim Cornett 1977-6-25 Riverside Desert Hot Springs 374 Comment
  RSA781611  Dalea mollis Duncan S. Bell 2011-12-30 3037 Riverside Arica Mountains: southern section of the mountain range within the Palen/McCoy Wilderness area; approximately 2 air miles southwest of Priests Well, or approximately 7 air miles southwest of the ghost town of Rice. 365 Comment
  RSA793462  Dalea mollis Duncan S. Bell, John Anderson, Kim Clark, Keir Morse 2012-11-11 4372 Riverside Mecca Hills: at Hidden Spring just off Hidden Spring Canyon, approximately 2.6 air miles south of Shaver Well, or approx. 5.4 air miles northeast of junction of Box Canyon Road and the Coachella Canal. 216 Comment
  CHSC99048  Dalea mollissima LeRoy Gross 2005-3-3 1558 Riverside Colorado Desert; Northeastern Colorado Desert region: Palen Mountains, south side. Near end of old prospect road. 68 Comment
  CLARK-A1656-655  Dalea mollissima Lois Ann Scott 1978-4-12 Riverside La Quinta Comment
  POM310161  Dalea mollissima Hulda Crooks 1946-3-2 269 Riverside Palm Springs area. 139 Comment
  LA11697  Dasyochloa pulchella John Thomas Howell; 1928-1-30 3310 Riverside 2 mi. E of Shavers' Well Comment
  SEINET183428 Image available Dasyochloa pulchella Harry S. Yates 1937-3-24 6454 Riverside Deep Canyon Coachilla Valley 457 Comment
  UCSB18912  Dasyochloa pulchella Keefe, Joseph 1965-5-18 Riverside Pinyon Flats Campground S of Palm Desert on Palms to Pine Highway 1432 Comment
  UCSB491  Dasyochloa pulchella Yokoyama, Howard 1953-3-21 Riverside 11 mi E of Indio Comment
  POM13846A  Datisca glomerata E. C. Jaeger 1921-7-7 1184 Riverside Massacre Canyon [Badlands, near Lamb Canyon -SDW] Comment
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Nov 5 2011
  UCR94936  Datisca glomerata Scott D. White 1996-8-15 4465 Riverside San Jacinto Mtns., Idyllwild Area: Alvin Meadows and unnamed canyon upstream. Upper margin of area that burned in July, 1996 1585 Comment
  RSA0108944  Datura discolor Duncan S. Bell, Amanda Bell 2012-1-28 3066 Riverside East side of the Arica Mountains; collecting in Rice Valley, approximately 6 air miles southeast of the ghost town of Rice. 202 Comment
  RSA717450  Datura discolor Scott D. White, Pam De Vries 2006-3-14 11262 Riverside North of the I-10 Freeway a few mi east of Indio, at proposed I-10 / McNaughton Parkway interchange. 91 Comment
  RSA192102  Datura wrightii E. W. Lathrop 1960-6-15 5015 Riverside 10 mi. W. of Murrieta. Comment
  SBBG55995  Datura wrightii K. Cook 1966-5-12 Riverside 50 yds N on roadside of hwy from Hemet to Idyllwild across from farm house, 0.25 mi from ranger station 701 Comment
  UCR274000  Datura wrightii Mitch Provance 2012-9-11 17620 Riverside Badlands of Western Riverside County, Beaumont, near N base of Mt. Davis, near Cooper's Creek (tributary of San Timoteo Creek), about 2000 ft., along dirt road extension of Risco Circle, S of W 4th St. 762 Comment
  SDSU12947  Deinandra fasciculata Jutta Buschbom 1991-6-1 19 Riverside Santa Margarita Ecological Reserve, Temecula. 152 Comment
  CAS-BOT-BC292009  Deinandra paniculata A. C. Sanders; Guy Bruyea 2003-6-12 26897 Riverside Perris-Aguanga Basin Region: Winchester, SE side of town between Simpson Ave. and Olive Ave., east of Hwy 79/Winchester Rd. 450 Comment
  CAS-BOT-BC7983  Delphinium parishii subsp. parishii Milo S. Baker 1928-4-3 2802 C Riverside Tahquitz Canyon near Palm Springs Comment
  CAS-BOT-BC7990  Delphinium parishii subsp. parishii Ynez Whilton Winblad 1937-4-19 S.N. Riverside Near Palm Springs Comment
  RSA591819  Delphinium parryi E. W. Lathrop 1969-5-8 7016 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. 1220 Comment
  SDSU10045  Delphinium parryi H. Wedberg 1962-5-23 942 Riverside 4.8 miles from hwy 395 at Rainbow, on road to Santa Margarita River and Temecula Canyon. 366 Comment
  UCR132917  Delphinium parryi John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  UCR174922  Delphinium parryi Holly Summers, Jennifer H. Jones and Thi (Teresa) Bui 2006-5-31 s.n. Riverside Peninsular Ranges, San Jacinto Mtns., Just south of Mt. Edna Rd. on Calif. Hwy 243 1143 Comment
  UCR86246  Delphinium parryi Jeri Hirshberg 1995-5-27 s.n. Riverside San Jacinto Mtns., Garner Valley, edge of meadow c. 50 m west of Fobes [Ranch] Road 1366 Comment
  RSA400047  Delphinium patens subsp. hepaticoideum E. Crow 1929-3-17 1925 Riverside Glen Ivy Hot Springs, Santa Ana Mts. Comment
  CAS-BOT-BC82951  Dendromecon rigida Nancy Ryan Zabriskie; Walter Zabriskie 1970-3-23 254 Riverside Along Banning Idyllwild road, San Jacinto Mountains. 914 Comment
  CAS-BOT-BC82954  Dendromecon rigida Hayes 1975-5-5 2364 Riverside Highway 243 12 miles north James Reserve. Comment
  UCR16440  Dendromecon rigida K. Stolte 1978-5-17 s.n. Riverside San Jacinto Mountains, Along Hwy 243, about 8 mi south of Banning, on the north side of Mt. San Jacinto Comment
  UCR266815  Deschampsia danthonioides Mitch Provance, Matt Amalong, Eric Kline 2015-3-24 315- 11 Riverside Paloma Valley, Menifee, NE corner of the intersection of Scott Rd. and Menifee. 454 Comment
  SBBG59444  Deschampsia elongata R. Hoffmann 1929-9-7 Riverside Strawberry Valley Comment
  UCR264651  Descurainia pinnata Mitch Provance 2013-4-8 413- 07 Riverside San Bernardino Valley, Santa Ana River bottom, Tequesquite Creek and associated wetlands west of Rubidoux Ave 226 Comment
  UCR97457  Descurainia pinnata John Wear, N. Moorhatch 1997-3-5 s.n. Riverside San Jacinto Mtns, Chino (Tramway) Cyn, both sides of road. 500 Comment
  CAS-BOT-BC43354  Descurainia pinnata subsp. glabra Ivan Johnston 1070 Riverside Palms Canyon. 274 Comment
  UC1234752  Dicentra chrysantha Peter H. Raven 1962-4-29 17485 Riverside 1 mi above Ortega Highway e base 487 Comment
  RSA367466  Dichelostemma capitatum subsp. capitatum Mark Morris 1929-3-17 s.n. Riverside Palm Canyon. Comment
  RSA367527  Dichelostemma capitatum subsp. pauciflorum N. C. Cooper 1944-4-8 1093 Riverside San Bernardino National Forest, San Jacinto Mountains: Andreas Canyon (near Palm Springs) 457 Comment
  RSA501037  Dichelostemma pulchellum var. pulchellum Steve Boyd, Timothy S. Ross, L. Arnseth 1989-4-1 3158 Riverside Vail Lake area, recent burn in hills just to SW of the dam. 488 Comment
  CLARK-A1656-666  Dicoria canescens Lois Ann Scott 1978-12-22 Riverside Thousand Palms Oasis 182 Comment
  JEPS41017  Dicoria canescens S. B. Parish 1912-10-8 8366 Riverside Indio Salton Basin -6 Comment
  UCR133657  Dicoria canescens Chet McGaugh 2004-2-25 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, northern Palm Springs, near the Whitewater River channel, NW corner of Sunrise Way and San Rafael 171 Comment
  SD187355  Dieteria asteroides var. asteroides Scott D. White, Angelia Carey 2004-9-16 10764 Riverside San Jacinto River wash and adjacent alluvial benches, near Indian Creek confluence. 502 Comment
  POM259193  Dieteria canescens var. ziegleri P. A. Munz 1938-8-13 15332 Riverside Near Santa Rosa Peak 2317 Comment
  SD128720  Diplacus bigelovii var. bigelovii Darley F. Howe 1980-4-16 Riverside 4 miles south of Highway 10 on Cornsprings Road, Chuckwalla Mountains 334 Comment
  RSA0019420  Diplacus fremontii Scott D. White 1999-6-6 7440 Riverside Idyllwild Area: Near Idyllwild Community Service Dist. sewage ponds at terminus of USFS Road 5S24.2. 1432 Comment
  CAS-BOT-BC150676  Diplacus longiflorus Mrs. E. C. Van Dyke 1928-5-28 s.n. Riverside Banning Comment
  CAS-BOT-BC150263  Diplacus puniceus Steve Boyd; Aydee Virgen 2004-4-13 10850 Riverside Peninsular Ranges; Santa Ana Mountains region: San Mateo Canyon, midway between confluence with Los Alamos Canyon and Tenaja Canyon Comment
  GMDRC3545  Ditaxis californica J. Andre, T. La Doux 2009-2-25 10802 Riverside Chuckwalla Mountains: growing on rocky (granitic) north-facing slope, approx 0.5 mi. south of I-10 freeway at Eagle Mtn Rd exit, USGS 7.5 min. Quad: Desert Center 33 deg. 41.303' N 115 deg. 27.236' W. Elev. 1358 ft. 414 Comment
  UCR21633  Ditaxis claryana Steve Boyd 1980-8-26 s.n. Riverside Santa Rosa Mtns, Magnesia Springs Canyon, at cove by first waterfall 244 Comment
  UC1547004  Ditaxis lanceolata Leila M. Shultz and John S. Shultz 1985-4-18 8327 Riverside 1 mi. w. <Astec> Well (and 11.7 mi. s. of Hwy. (I-15)); Chuckwalla Mts. 615 Comment
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Apr 5 2011
  RSA278953  Ditaxis serrata B. A. Prigge, L. Martinez 1978-3-23 s.n. Riverside NW Colorado Desert, Coachella Valley, 1.7 miles W of north Palm Springs on Dillon Rd. 274 Comment
  CAS-BOT-BC43642  Dithyrea californica H. M. Hall 1905-4-15 5772 Riverside Colorado Desert. Indian Well. 0 Comment
  JEPS53473  Dithyrea californica L. M. Newlon 1922-4-3 423 Riverside Indian Wells Colorado Desert Comment
  RSA0043364  Dithyrea californica Marc A. Baker, Amy Robinson, Chris Hackbarth, Michelle Cloud-Hughes 2013-3-19 17704 Riverside Palo Verde Mesa, 14 km SW of Blythe, 6 km ENE of north end of the Mule Mountains. 118 Comment
  RSA726580  Dithyrea californica Naomi Fraga, Sarah J. De Groot, Lisa Rojas, Leland Lubinsky 2005-2-10 1427 Riverside Along Palen Road near Hwy 177. 170 Comment
  UCSB2310  Dithyrea californica Haller, John 1957-3-23 Riverside Morongo Wash, ca. 4.5 road miles N. of U.S. 99, & 3 air miles S of Riverside-San Bernardino Co. line 609 Comment
  CAS-BOT-BC41673  Draba cuneifolia var. integrifolia Peter H. Raven 1958-1-24 11448 Riverside Fargo Canyon. Comment
  POM370052  Draba cuneifolia var. integrifolia Lester H. Cushman 1932-2-22 14918 Riverside Eden [Eden Hot Springs? -SW] Comment
  RSA115730  Dryopteris arguta Lucille Weight 1957-1 s.n. Riverside north Malapai Hill, Joshua Tree National Monument, southern end of Mojave Desert Comment
  UCR164282  Dryopteris arguta S. J. Myers 2001-7-16 s.n. Riverside Peninsular Range; San Jacinto Mtns, Bautista Canyon 951 Comment
  CLARK-A1656-641  Dudleya saxosa Kay Trenholme 1978-5-5 Riverside Snow Creek 381 Comment
  SD45423  Dudleya saxosa subsp. aloides Reid Moran 1947-5-10 2182 Riverside Santa Rosa Peak road, 1.5 miles from highway. 1690 Comment
  SEINET8060974 Image available Echinocactus polycephalus var. polycephalus Michael Chamberl 1990-1-11 12 Riverside Barstow SE quad. Barstow Rd. entry to BLM limited use land. N of saloon. West side of Rd. on low hill. Stoddard Valley. between power lines to the south, and double power lines to the north 900 Comment
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Jun 4 2016
  UCR131797  Echinochloa crus-galli Mitch Provance 1998-6-20 703 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
  SEINET8724864 Image available Echinocystis macrocarpa Jean Coulson 1959-1 192 Riverside Riverside County, California, 0.9 mi. N. of Riverside, San Diego County line on Murrieta, De Luz road. E. of road. Comment
  CHSC23210  Elatine chilensis Robert F. Thorne; E. Lathrop 1969-5-19 37968 Riverside Santa Rosa Plateau, Mesa de Colorado, Rancho California. 624 Comment
  UC1756  Eleocharis acicularis H. M. Hall Jul 1901 2366 Riverside Tauquitz [Tahquitz] Valley 2438 Comment
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Jul 5 2010
  UCR85591  Eleocharis acicularis var. acicularis Julie A. Greene, S. D. Boyd, D. E. Bramlet, Hilda Flores, H. Ochoterana 1993-7-9 1424 Riverside San Jacinto Valley, San Jacinto Wildlife Area [northwest of Lakeview] 433 Comment
  CAS-BOT-BC112919  Eleocharis macrostachya H. M. Hall; L. A. Greata 1905-4-1 5919 Riverside Colorado River bottoms. Comment
  CHSC89888  Eleocharis montevidensis L. P. Janeway 2004-5-8 8064 Riverside Peninsular Ranges. Santa Ana Mountains, San Mateo Canyon; along the creek 150 m south-southwest of the Tenaja Trail trailhead at Wildomar Road. 384 Comment
  RSA575974  Eleocharis montevidensis Steve Boyd 1981-1-25 s.n. Riverside Gavilan Hills region, south flank of the range in Arroyo del Toro along Bull Canyon Road. Comment
  CAS-BOT-BC113295  Eleocharis parishii A. C. Sanders; Mitch Provance; T. B. Salvato 2001-5-7 24170 Riverside Perris-Aguanga Basin region: S of Hemet, E end of Kiamond Valley, along Gibbel Rd. 0.5-0.75 mi. E of State St., between Silver Dew Dr. and Morse Girard St., slopes and wash below the mouth of Avery Canyon. Helmet 7.5' Quad 548 Comment
  UCR125276  Eleusine indica A. C. Sanders 2002-11-21 25637 Riverside Temescal Valley, development called 'Trilogy at Glen Ivy' at the confluence of Bixby and Anderson Canyons 366 Comment
  UCR167843  Elymus condensatus T. B. Salvato, Melissa Clemons 2005-6-23 1330 Riverside Peninsular Range; Temescal Valley, 3 miles NW of Alberhill, Temescal Canyon Road at Corona [Lee] Lake 366 Comment
  RSA559355  Elymus elymoides Steve Boyd, Timothy S. Ross 1992-5-15 7387 Riverside Southern Santa Ana Mountains, southeastern flank of Elsinore Peak at 'Onion Hill', a grassy knoll about 1/4 mile E of radio towers, along old Main Divide Road track 1021 Comment
  CAS-BOT-BC203642  Elymus glaucus subsp. glaucus S. B. Parish; W. F. Parish 1881-7-1 1014 Riverside San Jacinto Mts., Tahquitz Valley Comment
  CAS-BOT-BC206529  Elymus glaucus subsp. glaucus H. M. Hall 1901-6-1 2097 Riverside Slopes and benches of the south side - San Jacinto Mountains 1463 Comment
  UCR2359  Elymus glaucus subsp. glaucus F. M. Reed 1907-6-16 1418 Riverside South Coast; San Bernardino Valley, Riverside, upper south fork of Arroyo Tequesquite 457 Comment
  SD136948  Elymus multisetus Steve Boyd, Tim Ross 1992-6-10 7628 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. About Potrero Escondido, due west of the junction of Tenaja Road (7S01) and Los Alamos Road (7S04) at the confluence of Los Alamos Creek with the main trunk of San Mateo Creek. 671 Comment
  UCR22064  Elymus triticoides Steve Boyd 1980-6-2 308 Riverside Gavilan Hills, Harford Springs County Park, northwest corner of the Gavilan Plateau 640 Comment
  UCR2366  Elymus triticoides F. M. Reed 1908-7-13 2477 Riverside San Jacinto Mtns., ridge above Tahquitz Valley 2835 Comment
  RSA667004  Emmenanthe penduliflora A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-9 24216 Riverside Hemet. SE of intersection of State Street and Gibbel Rd., small hill (1684 ft. at summit) at east end of Diamond Valley, 1 mi. SSW of Hemet Butte. 500 Comment
  RSA678348  Emmenanthe penduliflora Steve Boyd, Amber Maurice, Pesach Lubinsky, Lel Lubinsky 2003-4-17 10461 Riverside East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  UC809725  Emmenanthe penduliflora Philip A. Munz 1949-4-13 13055 Riverside Slope above Cottonwood Springs, west end of Eagle Mts. Colorado Desert 1143 Comment
  UCR214853  Emmenanthe penduliflora Bao Doan 2010-5-31 11 Riverside Western edge of Sonoran (Colorado) Desert, San Gorgonio Pass, Cabazon, Elm St. at San Gorgonio River wash crossing 473 Comment
  UCR279544  Emmenanthe penduliflora A. C. Sanders, Jim Malusa 2017-3-27 43129 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Siphon 22 on the Coachella Canal, just inside Naval Aerial Gunnery Range boundary 23 Comment
  UC219584  Encelia actoni P. A. Munz 1922-7-3 5961 Riverside road from Santa Rosa to Vandeventer; Santa Rosa Mts. 1676 Comment
  RSA695714  Encelia farinosa Keith E. Hoffmaster 1933-4-13 s.n. Riverside Palm Springs. Comment
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Aug 27 2011
  UCD131200  Encelia farinosa Nancy Ryan Zabriskie 1969-4-1 173 Riverside Andreas Canyon, near Palms Springs. 152 Comment
  UCR254624  Encelia farinosa Jim Andre 2013-3-21 24400 Riverside NE Colorado Desert, West Riverside Mountains; at base of NW corner of range where sand ramps run up against granitic bouldery slopes, about 10 mi. SW of Vidal Jct, 3 mi. south of Grommet RR xing at Hwy 62 363 Comment
  POM7054  Encelia farinosa var. farinosa P. A. Munz, L. T. Street, Williams 1919-3-26 2337 Riverside Palm Springs. 213 Comment
  RSA556519  Encelia farinosa var. farinosa Julie Greene 1993-4-10 1129 Riverside San Jacinto Wildlife Area: Lower North facing slope with granitic outcrops. 475 Comment
  JEPS30404  Encelia frutescens Donald Kyhos 1957-3-20 1 (57-3) Riverside Hwy 99 at north end Salton Sea Comment
  SD255705  Enchylaena tomentosa A. C. Sanders, T. B. Salvato 2015-7-22 41747 Riverside Peninsular Range: Riverside; formeer O. F. Clarke residence, 266 Frost Court, east edge of UCR campus. 360 Comment
  NY70336  Ephedra aspera C. L. Hitchcock 1940-3-29 s.n. Riverside Cottonwood Canyon Comment
  RSA383860  Ephedra aspera N. R. Zabriskie 1969-1-4 176 Riverside Andreas Canyon near Palm Springs. 365 Comment
  RSA770689  Ephedra californica Orlando Mistretta, Duncan Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4788 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  SD229017  Ephedra californica Dick Schwenkmeyer 2012-5-22 723 Riverside Snow Creek, north base of Mt. San Jacinto, approx. 4 miles south of intersection of highways 10 and 111 511 Comment
  CAS-BOT-BC81873  Ephedra trifurca Philip A. Munz 1941-4-5 16693 Riverside sand dunes southeast of Iron Mts. Comment
  UCSB9241  Ephedra viridis Krogen, Roger 1957-1 Riverside 7 mi. W of junction of Hwy 60-70 in Box Canyon wash Comment
  CAS-BOT-BC5226  Epilobium canum subsp. latifolium Winifern W. Swarth 1914-9-9 s.n. Riverside San Jacinto Mts. Comment
  JOTR16761  Epilobium canum subsp. latifolium Baker, James K. & Baker, Ilisa T. 1966-10-14 s.n. Riverside Joshua Tree National Park. BARKER DAM 1310 Comment
  UC205218  Epilobium canum subsp. latifolium E. M. Fultz Sep. 1917 Riverside Idyllwild San Jacinto Mts. Comment
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Mar 21 2011
  RSA72167  Epilobium ciliatum subsp. ciliatum F. W. Peirson 1924-7-28 5012 Riverside Pine Flats Camp 1799 Comment
  SBBG60174  Epilobium ciliatum subsp. ciliatum R. Hoffmann 1929-9-5 Riverside Tahquitz Valley 2438 Comment
  RSA568556  Epipactis gigantea Burton 1908-5-6 s.n. Riverside Riverside. Comment
  RSA520081  Equisetum laevigatum Steve Boyd, Dave Bramlet 1988-10-8 2871 Riverside Cahuilla Mountain, SW of Anza at head of Bautista Canyon. Along crest of the mountain. Comment
  SDSU1959  Equisetum laevigatum Graham A. Cribbs 1962-7-28 116 Riverside Taken from meadow adjacent to Lake Hemet in the San Jacinto mountains. 1372 Comment
  UCR83128  Eragrostis curvula var. conferta A. C. Sanders, S. Ogg 1994-7-28 15183 Riverside Santa Ana River between the Hwy 60 Bridge and the Mission Blvd. Bridge 243 Comment
  UCD63467  Eragrostis mexicana subsp. mexicana F. M. Reed 1907-11-24 2000 Riverside Riverside and vicinity. Santa Ana River bottom near Chinese Gardens. Comment
  UCD63441  Eragrostis minor C. E. Good 1939-12-4 Riverside Sage. Comment
  RSA655039  Eragrostis pectinacea Scott D. White 1999-7-9 7531 Riverside Idyllwild Area: Near Idyllwild Community Service Dist. sewage ponds at terminus of USFS Road 5S24.2. 1432 Comment
  UC2031361  Eremalche exilis Duncan S. Bell with Kim Clark, Ingrid Crickmore, Bob Ellis, Keir Morse, and Gene Ratcliff 2013-4-7 4765 Riverside E side of Arica Mountains; W side of Rice Valley approx. 6 air miles SE of the ghost town of Rice or approx. 5.3 air miles E of Priests Well. Comment
  RSA777539  Eremalche rotundifolia Thomas Stoughton, Chrsiti Gabriel, Stephanie Rockwood 2011-3-30 899 Riverside McCoy Wash, east side of McCoy Mountains, pavement plain, approximately 7 miles north of I-10. 290 Comment
  UCR196386  Eremalche rotundifolia Naomi Fraga, Lisa Rojas 2005-2-10 1408 Riverside Northeastern Colorado Desert, just north of Palen Pass Road, c. 10 mi east of Hwy 177 502 Comment
  CAS-BOT-BC160061  Eremothera boothii subsp. condensata Forrest Shreve 1937-3-12 7904 Riverside 6 mi. NE of Desert Center Comment
  CAS-BOT-BC160062  Eremothera boothii subsp. condensata Edmund C. Jaeger 1939-3-30 s.n. Riverside Desert Center 243 Comment
  UC127707  Eremothera refracta H. M. Hall 1905-4-21 5840 Riverside near Salton; Colorado Desert Comment
  UCR279410  Eremothera refracta A. C. Sanders, Jim Malusa 2017-3-25 42991 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Arroyo Seco, 3.5-4 km south of Augustine Pass, 100-200 m S of Bradshaw Trail, c. 1.5 km N of Imperial Co. line 652 Comment
  UCR126206  Eriastrum densifolium subsp. densifolium Mark S. Brunell 1993-7-9 124 Riverside Arroyo Seco Creek, adjacent to Dripping Springs Public Campground, c. 500 m south of terminal loop of campground road, along east bank of creek 488 Comment
  UCR95954  Eriastrum densifolium subsp. densifolium Scott D. White 1996-8-1 4403 Riverside Peninsular Range; San Jacinto Mtns., Idyllwild area, Hwy 243 at Deer Springs trailhead and adjacent area 1829 Comment
  JEPS69026  Eriastrum diffusum subsp. coachellae E. E. Schellenger April 1920 Riverside Coachella Colorado Desert. Comment
  POM8324  Eriastrum eremicum Mary F. Spencer 1918-5-7 s.n. Riverside San Jacinto Mountains 1524 Comment
  RSA0120100  Eriastrum eremicum subsp. eremicum P. A. Munz, P. C. Everett 1952-5-2 16257 Riverside 2 miles east of Garnet, Coachella Valley. 30 Comment
  JOTR33875  Eriastrum harwoodii La Doux, Tasha, A. Miller and G. Clifton 2009-4-9 3056 Riverside Joshua Tree National Park. north eastern tip of Eagle Mountains; sandy fans leading to Pinto Wash 357 Comment
  UC774165  Eriastrum sapphirinum C. Epling and Wm. Robison 1933-6-24 Riverside San Gorgonio Wash Little San Bernardino Mountains Comment
  UCD118317  Eriastrum sapphirinum Ed LaRue 1989-6-11 s.n. Riverside W side of Lakeview Mountains, ca. 1 mile SE of town of Nuevo. 640 Comment
  JEPS69085  Eriastrum sapphirinum subsp. dasyanthum P. A. Munz 1923-6-14 7103 Riverside East or Glen Ivy Hot Springs side Santa Ana Mts., Santiago Peak 914 Comment
  RSA0122950  Eriastrum sapphirinum subsp. dasyanthum C. W. Tilforth 1969-7-24 213 Riverside About 5 mi. south of Hemet, east of County Highway R-3. Comment
  RSA0063623  Eriastrum sapphirinum subsp. sapphirinum J. D. Olmsted 1959-8-18 784 Riverside Reservoir Hill at Desert Sun School near Idyllwild. Mt. Range: San jacinto; Drainage Area: M. Fk. S. Jacinto R. 1646 Comment
  JOTR34488  Ericameria cooperi Andre, Jim 2012-4-16 20972 Riverside Joshua Tree National Park. along Cottonwood Spring Road, approx. 6 mi. south of the North Entrance at Twin Tanks parking area. 1196 Comment
  RSA702740  Ericameria cooperi Scott D. White, Michael Honer 2004-4-6 10047 Riverside Perris / Elsinore Basin: Temescal Valley, just north of the I-15 Freeway and east of Indian Truck Trail, south and west of Lee Lake. 335 Comment
  POM295632  Ericameria cuneata var. spathulata Lyman Benson 1952-12-29 15088 Riverside White Tanks, Joshua Tree National Monument, 915 Comment
  POM359404  Ericameria linearifolia Norman C. Cooper 1945-3-26 s.n. Riverside Aguanga. Comment
  UCR120174  Ericameria palmeri var. pachylepis Mitch Provance 1998-3-6 140 Riverside Jurupa Mountains, Glen Avon Hts., Boulder Park, 0.7 km west of Pyrite St.on the north side of Granite Hill Dr. 305 Comment
  UCR140740  Ericameria palmeri var. pachylepis A. C. Sanders 2004-5-11 27853 Riverside Elsinore Basin Region, Alberhill Mountain, lower south-facing slopes southeast of the clay mining area 450 Comment
  CAS-BOT-BC299535  Ericameria paniculata J. C. Roos 1965-11-6 s.n. Riverside Whitewater 304 Comment
  RSA741266  Ericameria parishii Scott D. White, Justin M. Wood 2008-7-10 12453 Riverside San Jacinto Mountains: Fobes Spring 1500 Comment
  UCR9133  Ericameria pinifolia Frank C. Vasek 1969-10-14 s.n. Riverside Box Springs Mtns, on an imaginary line c. 1/2 way between the terminus of Pennsylvania Ave. (now Martin Luther King Blvd, 2000) & the radio transmission towers Comment
  UC496496  Ericameria teretifolia Philip A. Munz 1932-10-16 12872 Riverside to Vandeventer Flat road Indio (n slopes of Santa Rosa Mts.); Santa Rosa Mts. 1066 Comment
  POM13575  Erigeron divergens P. A. Munz, D. D. Keck 1922-4-13 4924 Riverside Hayfields,' Chuckwalla Valley 152 Comment
  UC219263  Erigeron divergens P. A. Munz and I. M. Johnston 1922-5-20 5469 Riverside Kenworthy San Jacinto Mts. 1402 Comment
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Mar 25 2011
  UCSB49611  Erigeron foliosus 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 1996 Comment
  POM48719  Erigeron foliosus var. foliosus P. A. Munz, I. M. Johnston 1924-7-29 8840 Riverside 7 mi SE of Poppet Flat, San Jacinto Mts. 1524 Comment
  SEINET238580  Erigeron foliosus var. foliosus Scott D. White 1997-5-25 5248 B Riverside Hills S of Patton Ave. and W of Winchester Rd. ca 2 air miles SW of jtn. Winchester Rd./ Simpson Ave. 457 Comment
  CAS-BOT-BC189077  Eriodictyon crassifolium Carl B. Wolf 1932-5-24 3650 Riverside 0.5 mile below fish hatchery, Snow Creek Canyon, N base of San Jacinto Mountains 548 Comment
  HSC83016  Eriodictyon crassifolium N. M. Fellows 1985-3-16 106 Riverside Oasis de los Osos Preserve of the Nature Conservancy, off Snow Creek Canyon at the N foot of San Jacinto Mts, 1 mi. W of Snow Creek Village 489 Comment
  POM3890  Eriodictyon crassifolium I. M. Johnston 1917-4-4 1072 Riverside Palm Canyon 229 Comment
  RSA450469  Eriodictyon crassifolium J. C. Roos 1965-6-13 s.n. Riverside Palms to Pines Hwy., San Jacinto Mtns. Comment
  RSA495435  Eriodictyon crassifolium Steve Boyd, Tim Ross, L. Arnseth 1989-3-12 2962 Riverside Vail Lake area, lower slopes of Oak Mountain 1.5 mi WSW of lake. 488 Comment
  CAS-BOT-BC189121  Eriodictyon crassifolium var. crassifolium H. M. Hall 1901-6-1 2006 Riverside Western Base Comment
  CAS-BOT-BC189122  Eriodictyon crassifolium var. crassifolium H. M. Hall 1901-6-1 2006 Riverside Western Base Comment
  UC24068  Eriodictyon crassifolium var. crassifolium H. M. Hall 1899-5-20 1107 Riverside Valle Vista San Jacinto Mountains, Valle Vista (in sand washes) Comment
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Mar 27 2011
  SD155432  Eriogonum apiculatum Craig Reiser 2002-5-27 Riverside Santa Rosa Peak, above east-west primary fire road, below peak. Comment
  UCR111236  Eriogonum apiculatum Ralph Hoffmann 1929-9-5 s.n. Riverside San Jacinto Mountains, Strawberry Valley 2134 Comment
  JOTR32452  Eriogonum davidsonii Herskovits, Tasya 2011-9-28 2 Riverside Joshua Tree National Park. Little San Bernardino Mountains; Keys View; Burn area on gentle rocky slopes 1582 Comment
  SEINET6340536  Eriogonum davidsonii Richard Walker 1967-9-30 91 Riverside About 2 miles below Black Mountain Camp on north side of road embankment ca. 6ft. off. San Jacinto Mountains 1981 Comment
  RSA0018889  Eriogonum deflexum Duncan S. Bell, John Anderson, Kim Clark, Debbie George, Jim George, Ed Howland 2013-9-28 6025 Riverside Chuckwalla Valley; approximately 22.25 air miles west of Blythe, south side of Ford Dry Lake, about 0.5 air mile southeast of Hopkins Well. 107 Comment
  RSA171058  Eriogonum deflexum var. deflexum Robert F. Thorne 1963-3-29 32370 Riverside 5 miles E of Mecca, Mecca Hills. 152 Comment
  UCR250919  Eriogonum elongatum Jeremiah George 2012-7-11 s.n. Riverside Beaumont, south of Kobe St./Brownie Way and west of Manzanita Park Rd., east of Hwy 79 798 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-BC249959  Eriogonum fasciculatum var. foliolosum Mrs. E. C. Van Dyke 1928-7-1 s.n. Riverside Near Idyllwild, along road Comment
  LA84261  Eriogonum fasciculatum var. polifolium O. H. Kappler; 1948-4-18 1652 Riverside Whitewater Comment
  POM2235  Eriogonum fasciculatum var. polifolium I. M. Johnston 1917-6-5 1240 Riverside Hills south of Arlington 366 Comment
  RSA297345  Eriogonum fasciculatum var. polifolium Larry E. DeBuhr 1977-2-20 2556 Riverside 1 mile below the Palm Springs Tramway Station, upper canyon on east side of Mt. San Jacinto. Comment
  UCR100084  Eriogonum fasciculatum var. polifolium R. G. Swinney 1967-3-5 332 Riverside San Jacinto Mountains/Colorado Desert, Snow Creek, on E side of desert slope 366 Comment
  UCR121337  Eriogonum fasciculatum var. polifolium A. C. Sanders, Mark Elvin, Vipul Joshi 2002-4-26 25034 Riverside The Badlands, west fork of Laborde Canyon near old rocket test facility 622 Comment
  UCR154394  Eriogonum gracile A. C. Sanders, Mike Misenhelter 2005-6-15 30971 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
  UCR106914  Eriogonum gracile var. gracile D. L. Banks, Lauren Raz 1996-11-5 1181 Riverside NW Palomar Mtns., Agua Tibia Mountains, Pechanga Indian Reservation, SE of San Gabriel Church; along main road in the reservation, c. 0.2 mi. east of the church, across from the local cemetery. 378 Comment
  RSA527857  Eriogonum gracile var. incultum Scott D. White 1991-5-10 91 -153 Riverside Hwy 79, immediately W of U. S. Forest Service campground at Dripping Springs. 549 Comment
  RSA700095  Eriogonum gracile var. incultum Virginia Moran 2003-9-1 s.n. Riverside Wilson Valley Mitigation Bank, managed by the Center for Natural Lands Management: Section 33 of two that comprise mitigation bank. (Section 27 and 33). Accessed from Wilson Valley Road. Comment
  CAS-BOT-BC257577  Eriogonum inflatum Dr. Barton W. Evermann 1924-4-12 s.n. Riverside Cottonwood Springs Comment
  JEPS56815  Eriogonum inflatum E. E. Schellenger May 1920 Riverside Hayfields near Mecca; Colorado Desert Comment
  OBI10947  Eriogonum inflatum Robert F. Hoover 1966-10-15 10168 Riverside Dead Indian Cyn Comment
  RSA701167  Eriogonum inflatum Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah J. De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11230 Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  RSA4967  Eriogonum maculatum Carl B. Wolf 1932-4-27 3031 Riverside Colorado desert, 3/4 mile west of Utopia on Mecca-Blythe road 152 Comment
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Dec 11 2011
  UC849804  Eriogonum nudum var. pauciflorum I. W. Clokey, E. G. Anderson 1935-8-21 6590 Riverside Keen Camp P.O. 1425 Comment
  RSA770788  Eriogonum pusillum Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4528 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  SD95171  Eriogonum pusillum Anne Harrison 1962-4-17 32 Riverside south side of State Highway 74, near Toro Peak Comment
  CAS-BOT-BC253023  Eriogonum reniforme John Thomas Howell 1931-6-5 6654 Riverside 1 mile east of Whitewater Comment
  UCR243512  Eriogonum saxatile Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21083 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, up side canyon approx. 400 m. west of main canyon drainage 1172 Comment
  JEPS56263  Eriogonum thomasii W. L. Jepson 1927-4-12 11655 Riverside Painted Canyon Mecca Hills, Painted Canyon 76 Comment
  RSA0123362  Eriogonum thomasii Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9042 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
  RSA517811  Eriogonum thomasii Steve Boyd, Orlando Mistretta 1986-3-13 1416 Riverside Palen Mountains: NE of Desert Center, jct of Parker Dam Rd and 'Palen Rd' (rd. going through pass between Palen and Granite Ranges). 183 Comment
  SEINET3087249 Image available Eriogonum thomasii Norman C. Cooper 1949-4-8 3247 Riverside Mecca Pass east of Indio. Comment
  UCR251352  Eriogonum thomasii S. J. Myers 2014-5-21 1064 Riverside Western Edge Sonoran (Colorado) Desert, Whitewater, along Whitewater River at I-10 407 Comment
  RSA0119600  Eriogonum thomasii Lyman Benson, Robert Benson 1952-4-8 14855 Riverside 2 miles west of Shaver Summit east of Indio, U.S. 66. Drainage area: Colorado desert. 610 Comment
  UCD170271  Eriogonum thurberi Steve Boyd; Tim Ross, Laurel Arnseth 1989-6-4 3633 Riverside SE Vail Lake (Temecula Creek, just n of Hwy 79); Vail Lake area, Temecula Creek. 487 Comment
  IRVC26927  Eriogonum viridescens A. C. Sanders, Mark Elvin 2001-8-17 24597 Riverside trail from Key's View to Inspiration Point, Joshua Tree National Park Mojave Desert, Little San Bernardino Mtns 1585 Comment
  UCR89535  Eriogonum wrightii Bern Schwenn 1994-4-9 s.n. Riverside Southern Mojave Desert, Little San Bernardino Mtns, Joshua Tree National Monument [now National Park]: 'Hidden Gold' Canyon below the Hidden Gold Mine. In 3rd canyon on N side 1085 Comment
  UCR146431  Eriogonum wrightii var. nodosum R. F. Thorne 1966-10-15 41793 Riverside Colorado Desert: Western Colorado Desert region/San Jacinto Mountains, Dead Indian Canyon, near Palm Desert at foot of Palms to Pines Hwy 366 Comment
  UCR215578  Eriogonum wrightii var. nodosum Tasha La Doux, Jim Andre 2008-9-16 340 Riverside Mojave Desert, Joshua Tree National Park, c. 0.3 mi. NW of Indian Cove Campground 934 Comment
  POM15208  Eriophyllum ambiguum var. paleaceum Mary F. Spencer 1922-4-10 1952 Riverside Snow Creek prope [near] Palm Springs Comment
  CAS-BOT-BC297341  Eriophyllum confertiflorum Annie M. Alexander; Louise Kellogg 1941-4-24 2073 Riverside Gorge of Dry Morongo Creek, Morongo Valley Comment
  CAS-BOT-BC297342  Eriophyllum confertiflorum H. K. Wagnon 1944-5-30 415 Riverside By Tahquitz Creek, Palm Springs Comment
  POM13391  Eriophyllum confertiflorum E. C. Jaeger 1921-4-5 s.n. Riverside Mission Creek. Comment
  POM357953  Eriophyllum confertiflorum George R. Johnston 1930-6-13 s.n. Riverside Indio Canyon, Ravenna. 1067 Comment
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Nov 8 2011
  RSA388778  Eriophyllum confertiflorum F. T. Sproul 1977-8-10 183 Riverside On hill W of Pioneer Mail. 1700 Comment
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Mar 18 2013
  SEINET2051095 Image available Eriophyllum confertiflorum Ed LaRue 1989-4-26 Riverside 2 air mi. NW of Lake Elsinore, adjacent to Cleveland National Forest, at mouths of Rice and McVicker Canyons. Alberhill Quad 7.5 488 Comment
  UCR160059  Eriophyllum confertiflorum Steve Boyd, Valerie Soza 2004-6-22 11550 Riverside Peninsular Ranges; San Jacinto Mountains region, Western flank of the range, vicinity of Alvin Meadows and Chimney Flats, west of Idyllwild along Forest Service Road 5N13 near 5N06 1463 Comment
  UCR175076  Eriophyllum confertiflorum Teresa Nieto 2005-4-24 19 Riverside Peninsular Range, Wildomar, Menifee Hills, south of Bundy Canyon Rd. c. 1 mile from Harvest Way East, north of Felswood Rd. 579 Comment
  SBBG54342  Eriophyllum confertiflorum var. confertiflorum C. Davidson 1978-6-15 7392 Riverside Santa Rosa Pk, trail to the top 2407 Comment
  UC1257338  Eriophyllum confertiflorum var. confertiflorum E. L. Koethen 1897-8-1 20 Riverside Riverside Comment
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Nov 20 2015
  UC31711  Eriophyllum confertiflorum var. confertiflorum H. M. Hall 1901-7-20 2519 Riverside Strawberry Valley San Jacinto Mountains, Strawberry Valley Comment
  CAS-BOT-BC301791  Eriophyllum multicaule Frank W. Peirson 1922-4-29 2927 Riverside Road to Leach Canyon, about 1 mile north of Lake Elsinore Comment
  CLARK-A1528-5321  Eriophyllum multicaule John C. Roos 1940-5-4 882 Riverside Reche Canyon Comment
  UCR152630  Eriophyllum multicaule A. C. Sanders 2005-4-22 29585 Riverside Gavilan Hills, Gavilan Plateau c. 0.75 air mi. SE of summit of Gavilan Peak 625 Comment
  UCR281271  Eriophyllum multicaule Mitch Provance, Matt K. Beyers, John Hazlett, Douglas Gordon-Blackwood 2017-4-14 417- 31 Riverside Peninsular Ranges, Sedco Hills (east end), along transmission road, from 0.2 mi W of Beverly St. to the vicinity of intersection with Green Meadow Way 592 Comment
  CAS-BOT-BC302037  Eriophyllum wallacei Dr. Barton W. Evermann 1916-5-13 s.n. Riverside Cottonwood Springs Comment
  RSA702733  Erodium brachycarpum Scott D. White, Michael Honer 2004-4-6 10055 Riverside Perris / Elsinore Basin: Temescal Valley, just north of the I-15 Freeway and east of Indian Truck Trail, south and west of Lee Lake. 335 Comment
  RSA736033  Erodium brachycarpum Scott D. White, Jamie Minor 2008-3-13 11766 Riverside San Gorgonio Pass: Banning: S of Union Pacific RR, powerline route from Sunset Ave to 1 mile W. 732 Comment
  CDA4662  Erodium cicutarium M. L. Jack 1973-3-15 Riverside Banning. 0 Comment
  JEPS61390  Erodium cicutarium W. L. Jepson May 1901 13558 Riverside Thomas Valley San Jacinto Mts. Comment
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Jun 19 2011
  UCR155302  Erodium cicutarium A. C. Sanders 2005-5-4 29839 Riverside Gavilan Hills near Riverside, c. 1 km east and southeast of Gavilan Peak 625 Comment
  UCR201456  Erodium cicutarium Scott D. White, Justin M. Wood 2008-5-15 11969 Riverside San Jacinto Mountains, Garner Valley, northwest of Fobes Ranch Road and northeast of Hwy 74, valley bottom 1357 Comment
  UCR245918  Erodium cicutarium Naomi Fraga, David Fracker, Thomas Stoughton 2012-3-15 3951 Riverside Sonoran (Colorado) Desert, off of Box Canyon Rd., south of Shaver Well in a wash 229 Comment
  UCR180594  Erodium moschatum Scott D. White, Angelia Carey 2004-4-5 10037 Riverside San Jacinto Mountains, Foothills, north of Valle Vista. Indian Creek Watershed 671 Comment
  RSA775970  Erodium texanum Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-24 861 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
  RSA0015890  Erythranthe moschata Snell 1920-1 3402 Riverside Idyllwild. Comment
  RSA0016058  Erythranthe parishii L. B. Ziegler 1969-6-12 s.n. Riverside Hemet Valley. 1433 Comment
  JOTR34264  Eschscholzia La Doux, Tasha, M. Harding, T. Herskovits, M. Wheeler 2010-5-27 2955 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Mountain; loamy-gravel, steep, southeast facing slopes above Lost Horse Mine Trail Comment
  RSA0022930  Eschscholzia androuxii F. W. Peirson 1928-4-23 7888 Riverside 2.5 miles below cottonwood Springs. Comment
  RSA395894  Eschscholzia californica Steve Boyd 1986-4-22 1752 Riverside Temescal Canyon: Stable alluvial benches of Indian wash just south of I-15. Comment
  RSA445599  Eschscholzia californica Ora M. Clark 1929-3-2 1595 Riverside Near Alberhill Comment
  RSA524429  Eschscholzia californica Steve Boyd, Tim S. Ross, L. Arnseth, J. Bonilla 1990-4-3 4125 Riverside Vail Lake area, upper benches and adjacent slopes of the E flank of 'Big' Oak Mountain., just S of the E summit. 610 Comment
  UC855146  Eschscholzia californica I. W. Clokey, C. B. Clokey, and B. C. Templeton 1930-4-15 4641 Riverside Gavilan Peak 600 Comment
  UCR174101  Eschscholzia californica A. C. Sanders 2006-5-19 32469 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
  UCR182313  Eschscholzia californica Mitch Provance 2003-4-5 6617 Riverside San Bernardino Valley, Glen Avon (near border with Fontana) along the NW base of the Jurupa Mountains, south of Philadelphia St. and just east of Country Village Rd 253 Comment
  UCR777  Eschscholzia californica Joe Buriel 1966-3-12 s.n. Riverside Off Van Buren Avenue, 1 mi. east of Mockingbird Canyon Road turnoff 457 Comment
  SEINET13710935  Eschscholzia californica S. W. Austin, S. W. Austin 1969-1 27 Riverside W Side of Mts, E of Rr Tracks & N of RaviNE North of Big Springs Rd, Above 2000 Ft 610 Comment
  CHSC98017  Eschscholzia minutiflora LeRoy Gross 2005-3-3 1605 Riverside Colorado Desert; Northeastern Colorado Desert region: Palen Mountains, south side. Near end of old prospect road. Near 33.71244N, 115.11171W to 33.72053N, 115.11051W. Alt: 207-244m. 207 Comment
  JEPS51695  Eschscholzia minutiflora W. L. Jepson 1927-4-12 11653 Riverside Painted Canyon Mecca Hills 76 Comment
  RSA678883  Eschscholzia minutiflora Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10453 Riverside East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  UCD102061  Eschscholzia papastillii Shannon M. Still 2009-4-19 546 A Riverside California. Riverside County: Joshua Tree National Park. Next to stone outcropping off of Old Dale Road. 724 Comment
  CAS-BOT-BC419639  Eschscholzia parishii Carl B. Wolf 1932-4-27 3017 Riverside Colorado Desert. 17 mi. E of Mecca, on Blythe Road 152 Comment
  RSA663850  Eschscholzia parishii C. R. Annable, Lee Barron 1995-3-12 2270 Riverside Mecca Hills, Box Canyon Wash. Hwy 195. Comment
  UC1093127  Eschscholzia parishii Richard Snow 1952-4-13 6 Riverside Box Canyon Orocopia Mts. Comment
  CDA5163  Eucalyptus camaldulensis A. C. Sanders, O. F. Clarke 1991-6-1 11123 Riverside Upper Santa Ana River/San Bernardino Valley. Riverside, along Spring Brook between Lake Evans (Fairmont Park) & the Santa Ana River. Comment
  SEINET3093481 Image available Eucalyptus melliodora A. C. Sanders, B. Pitzer 1986-2-10 BG- 26 Riverside Cultivated in the myrtle section in grid cell # K-6. Comment
  SEINET3840920  Eucalyptus pulchella Unknown 1992-3-1 12039 Riverside Australian section of UCR Botanical Garden, Quadrangle: Riverside East 7.5 366 Comment
  SD140093  Eucrypta chrysanthemifolia Scott White 1993-4-22 1265 Riverside North Alberhill Ranch, in hills north of Walker Canyon. 487 Comment
  UCR174050  Eucrypta chrysanthemifolia A. C. Sanders, T. B. Salvato, Kelly Volansky, Michelle Balk 2006-5-24 32523 Riverside Hills between Murrieta and Menifee Valley, west of I-215, south of Bundy Cyn./Scott Rd. and north of Clinton Keith Rd. 640 Comment
  SD227860  Eulobus californicus A. C. Sanders 1994-5-15 14484 Riverside Mount Rubidoux: NW side of Riverside on the east bank of the Santa Ana River. 399 Comment
  SD79811  Eulobus californicus Helen V. Witham 1970-5-1 861 Riverside Bautista Canyon, southeast of Hemet. 800 Comment
  UCR281196  Eulobus californicus Michael D. Wilcox 2017-4-18 s.n. Riverside Sonoran (Colorado) Desert, 1 mile long segment of Palm Canyon Wash, centered on Hwy 111 crossing, city of Palm Springs 165 Comment
  RSA357136  Euonymus occidentalis var. parishii R. F. Thorne 1969-10-25 41851 Riverside San Jacinto Mountains: James Reserve. Comment
  SEINET10739487  Euphorbia David B. Dunn, Harold L. Lint 1948-1-25 Dunn 3635 Riverside Found near Quad 6 on the Pushawalla Canyon, Indio Hills of the Colorado Desert; west of Indio. Comment
  RSA717586  Euphorbia albomarginata A. C. Sanders 2004-5-12 27881 Riverside Elsinore Basin Region: Walker Canyon at northeast foot of Alberhill Mountain, Temescal Creek. 378 Comment
  UCR120426  Euphorbia maculata Mitch Provance 1998-7-23 912 E Riverside Jurupa Mountains, Jurupa Mountains Cultural Center, 1/4 mile SE of peak 1411 305 Comment
  UCR281920  Euphorbia micromera A. C. Sanders, Jim Malusa 2017-9-21 43351 Riverside Sonoran (Colorado) Desert, northern boundary of Chocolate Mountains Aerial Gunnery Range along south side of Bradshaw Trail at large wash crossing 680 Comment
  RSA713797  Euphorbia ophthalmica A. C. Sanders, G. K. Helmkamp 1996-3-17 17992 Riverside Coachella Valley: Rancho Mirage, intersection of Dinah Shore Dr. and Duval Dr. at Cathedral City limits, 2 mi. E of Date Palm Dr. and 2 mi. S or Ramon Rd. 98 Comment
  OBI29468  Euphorbia polycarpa David J. Keil, Melissa Luckow 1979-8-31 13156 Riverside Jctn of Box Cyn Rd and I-10 just S of exit ramp at wash crossing Comment
  PASA701  Euphorbia polycarpa 4/28 Riverside Hidden Springs Comment
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Jun 24 2016
  RSA741083  Euphorbia polycarpa Justin M. Wood 2008-11-17 228 Riverside Temecula - Murrieta Creek, downstream of 1st street bridge. 293 Comment
  UCR132418  Euphorbia polycarpa A. C. Sanders 2004-2-6 27386 Riverside Santa Ana Mtns., foothills at edge of Temescal Valley, intact ridge at a development called 'Trilogy at Glen Ivy,' south of Brown Canyon 442 Comment
  UCR21986  Euphorbia polycarpa Steve Boyd 1980-7-20 339 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  RSA70386  Euphorbia polycarpa var. hirtella F. W. Peirson 1920-12-28 2040 Riverside Wash coming down from the east; lower part of Palm Canyon. Comment
  UCR26189  Euphorbia setiloba John C. Roos 1947-11-1 3756 Riverside Sonoran (Colorado) Desert, Eagle Mountains, edge of Lost Palms Wash Comment
  SEINET13945543 Image available Fagonia chilensis Helen K. Sharsmith 1952-1 4062 Riverside NW base of Chuckawalla Mts., 7 mi S of Hwy 60-70; ca. 1750 ft alt. 533 Comment
  JOTR31776  Fagonia laevis La Doux, Tasha, Jim Andre 2009-3-10 385 Riverside Joshua Tree National Park. South end of the Cottonwood Mountains, near Pinkham Wash just north of aquaduct just inside park boundary; approx. 7mi west of south entrance 541 Comment
  RSA655607  Fagonia laevis A. C. Sanders 2000-4-25 23354 Riverside east side of the Coachella Canal between I-10 and Ave. 56 (Airport Rd.), 3 miles E of Thermal 15 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
  UC218081  Fagonia laevis P. A. Munz, R. D. Harwood 1920-4-3 3578 Riverside 30 mi w Blythe 365 Comment
  CAS-BOT-BC293741  Fagonia pachyacantha Mona Bourell 1987-4-14 3277 Riverside BLM California Conservation Area, Hwy 195, spur off of Box Canyon. Near Mecca 150 Comment
  SD152992  Festuca arundinacea Steve Boyd, Tim Ross & Dave Bramlet 1993-5-12 7338 Riverside San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Los Alamos Canyon, downstream to confluence with Tenaja Canyon 366 Comment
  UC1979683  Festuca microstachys Darin L. Banks, Steve Boyd 1995-5-9 394 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, N face of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area, W of Woodchuck Campground. Comment
  UCR22057  Festuca microstachys Steve Boyd 1980-4-13 121 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  UCR93057  Festuca microstachys Steve Boyd 1986-4-2 1628 B Riverside Peninsular Range, Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 640 Comment
  UCR102847  Festuca myuros A. C. Sanders 1997-3-26 20108 Riverside Lake Skinner area, NW foot of Tucalota Hills, shallow valley along dirt road 0.65 mi. east of main Lake Skinner road 457 Comment
  UCR207328  Festuca myuros O. F. Clarke 2000-4-27 s.n. Riverside Peninsular Range, Riverside; O.F. Clarke residence, 266 Frost Court; east edge of UCR campus 351 Comment
  UC2015686  Festuca octoflora A. C. Sanders, G. Helmkamp & P. MacKay 1995-3-12 16089 Riverside Coachella Valley: alluvial slopes at the foot of Rabbit Peak, Santa Rosa Mtns., below Sheep Canyon. Comment
  UCR279533  Festuca octoflora A. C. Sanders, Jim Malusa 2017-3-25 43014 Riverside Sonoran (Colorado) Desert, Chocolate Mountains, Arroyo Seco, 3.5-4 km south of Augustine Pass, 100-200 m S of Bradshaw Trail, c. 1.5 km N of Imperial Co. line 652 Comment
  RSA0116288  Ficus microcarpa R. E. Riefner Jr. 2015-8-8 15 -220 Riverside City of Corona, S side of 91 Freeway ca. 120 ft W of Lincoln St., N side of Corona del Rey apartments. 210 Comment
  UCR174112  Filago californica A. C. Sanders 2006-5-19 32419 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
  UCR25779  Filago californica John C. Roos 1952-4-13 5528 Riverside Peninsular Range, Box Springs Mountains 520 Comment
  CHSC8392  Fouquieria splendens Edward L. Smith 1958-3-21 355 Riverside Located 12 mi. e of Indio on hwy. 60, San Bernardino Mt. Range. 304 Comment
  RSA697315  Fouquieria splendens Keith E. Hoffmaster 1937-6-6 s.n. Riverside Desert grade of Palms to Pines Highway. Comment
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Dec 18 2011
  UC64538  Fragaria vesca H. M. Hall Aug 1897 861 Riverside San Jacinto Mountains 1828 Comment
  UCSB46879  Frankenia palmeri Roos, John 1965-6-30 Riverside Perris Comment
  UCR133662  Frankenia salina 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
  SEINET156544  Frasera parryi Norman C. Cooper 1944-7-15 1583 Riverside Palms to Pines Hwy. 1280 Comment
  CLARK-A1528-1039  Fraxinus dipetala C. M. Flanagan 1973-4-26 OO 310 Riverside Morongo Indian Reservation Comment
  UC878074  Fraxinus dipetala P. A. Munz 1922-4-28 5046 Riverside Leach Canyon Santa Ana Mts. 670 Comment
  RSA342005  Funastrum cynanchoides var. hartwegii R. F. Thorne, W. A. Tilforth, L. M. Shultz, R. K. Benjamin 1980-4-16 54111 Riverside San Bernardino Mountains: Mesquite thicket along Whitewater Canyon road. Comment
  RSA765482  Funastrum cynanchoides var. hartwegii Doris Hoover Bowers 1972-4-15 1801 Riverside Pulgas Creek Canyon, Rancho California 396 Comment
  RSA799405  Funastrum hirtellum Thomas Stoughton, Duncan S. Bell, Debra Nelson 2011-2-20 742 Riverside North side of the Mecca hills, side canyon between the head of Box Canyon and Shavers Well, roughly 7.4 miles from Interstate 10 on Box Canyon Road 305 Comment
  SEINET10580699  Funastrum hirtellum Ivan Murray Johnston 1917-4-4 Johnston s.n. 1917 Riverside Palm Canyon Comment
  CLARK-A1528-3945  Galium angustifolium Charles S. Papp 1964-6-6 507 Riverside Cleveland National Forest 853 Comment
  CLARK-A1528-827  Galium angustifolium I. Rauch 1968-5-14 Riverside Santa Ana Mountains Comment
  RSA689700  Galium angustifolium subsp. jacinticum Valerie L. Soza, Naomi S. Fraga, Sarah Swartzentruber 2003-6-25 1708 Riverside Lake Fulmore; NW side of Lake. 1616 Comment
  RSA761272  Galium angustifolium subsp. jacinticum Shawn Krosnick, Lucinda A. McDade, Naomi S. Fraga 2010-8-14 672 Riverside Idyllwild. The James San Jacinto Mountains Reserve. Located within 100 meters of the main research cabin. 1585 Comment
  IRVC26143  Galium aparine S. D. White 1995-3-30 2662 Riverside Moreno Valley; hills ca. 0.7 air mi directly S of 60 Fwy and W of bend in Moreno Beach Drive. Topo Q. shows "Moreno" BM 2067 at top of hill. San Jacinto Valley 579 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
  UCR180590  Galium aparine Scott D. White, Angelia Carey 2004-4-5 9983 Riverside San Jacinto Mountains, Foothills, north of Valle Vista. Indian Creek Watershed 671 Comment
  RSA701506  Galium californicum subsp. primum Naomi S. Fraga, Sarah J. De Groot 2004-7-8 1301 Riverside On Chimney Flats Road (5S06) near intersection of 5S04 (the road to Alvin Meadows). 1524 Comment
  UC144128 Image available Galium jepsonii Charlotte M. Wilder 1909-8-3 1113 Riverside Whitewater Basin; ; Riverside Co. Comment
  RSA797257  Galium parishii Robert F. Thorne, Walter Wisura 1977-9-17 50795 Riverside San Jacinto Mountain: slopes of peak 3171 Comment
  RSA775604  Galium stellatum var. eremicum Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 997 Riverside Iron Mountains, on southwest side of mountains in wash. 423 Comment
  RSA296127  Garrya flavescens var. pallida Barry A. Prigge 1980-8-11 3913 Riverside Whitewash Canyon: 3 miles N of the trout farm. 957 Comment
  RSA752813  Gayophytum A. C. Sanders, Tim Thomas 2008-8-1 35932 Riverside Coldwater Creek near Mountain Center, SE of Keenwild Fire Station 1402 Comment
  HSC5681  Geraea canescens L. S. Rose 1967-12-20 67183 Riverside 6 mi. SE, of Thousand Palms 15 Comment
  RSA105932  Geraea canescens Richard Mallory 1955-4-6 476 Riverside Borrego Desert State Park. Borrego Valley 8 miles east of Christmas Circle. 152 Comment
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Feb 19 2013
  POM12711  Geranium californicum P. A. Munz 1922-7-6 5985 Riverside Tahquitz Valley, San Jacinto Mountains. 2195 Comment
  RSA717333  Gilia Scott D. White 2003-3-23 8835 Riverside Desert slope; Hwy 74 near Carrizo Creek crossing. 610 Comment
  UC718485  Gilia angelensis Carl B. Wolf 1935-4-7 6314 Riverside 2 mi sw of Perris; Gavilan Hills Region, sw of Ferris 426 Comment
  UCR155833  Gilia angelensis John F. Green 2005-5-4 s.n. Riverside Perris-Aguanga Region, SE corner Markham St. and Day St., Mead Valley area, 2-3 mi SW of March Air Reserve Base 534 Comment
  UCR230202  Gilia angelensis A. C. Sanders 2011-4-6 38989 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
  RSA0094785  Gilia capitata Duncan S. Bell, Andrew Chambers, Jacob B. Landis, Evan Meyer, Billy Sale 2015-4-2 7937 Riverside San Gorgonio Pass area, between Cabazon and Whitewater, just south of Interstate 10, where the Pacific Crest Trail passes under the freeway. 397 Comment
  RSA469358  Gilia diegensis Gale Sphon 1955-5-22 s.n. Riverside Montane meadow, Hemet meadow. Comment
  SD48404  Gilia diegensis Verne Grant 1954-6-10 9398 Riverside Open burned-over brush on top of a shoulder on Santa Rosa Mtn. 2194 Comment
  SEINET3163624  Gilia latiflora G. B. Grant 1906-5-1 509 -6757 Riverside on Colorado Desert at Palm Springs, southern California Comment
  RSA0016282  Gilia ochroleuca subsp. exilis Naomi Fraga, Valentine Arvizu, Elizabeth Kempton, Tim Thibault 2006-6-7 1699 Riverside East of Fobes Ranch Road, just south of Fobes Ranch. 1616 Comment
  RSA0017097  Gilia ochroleuca subsp. exilis Steve Boyd, Dave Bramlet 1991-5-13 6254 Riverside Domenigoni Hills, N side of Domenigoni-Diamond Valleys ESE of Winchester. Vicinity of ultramafic outcrop on ridge top S of S-end of Warren Road. 549 Comment
  RSA0016283  Gilia ochroleuca subsp. exilis Clare B. Hardham 1965-6-18 12947 -B Riverside Cedar Flat Road, Idlewild [Idyllwild]. Comment
  RSA0017104  Gilia ochroleuca subsp. exilis P. A. Munz 1927-5-20 10867 Riverside Cohuila. Comment
  RSA0017292  Gilia ochroleuca subsp. exilis Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1068 Riverside Corona-Elsinore. Comment
  RSA0017293  Gilia ochroleuca subsp. exilis Steve Boyd 1986-4-22 1755 Riverside Temescal Canyon; Stable alluvial benches of Indian wash just S of I-15. Comment
  CLARK-A1528-712  Gilia splendens 1965-5-2 Riverside Temecula 609 Comment
  JOTR32970  Gilia stellata La Doux, Tasha, Alice Miller and Victoria Sork 2009-5-3 2721 Riverside Joshua Tree National Park. Little San Bernardino Mountains, west side of Queen Mountain; granitic outcrops with sandy ephemeral wash 1408 Comment
  UC68776  Gilia stellata H. M. Hall May, 1905 6015 Riverside Cottonwood Springs Colorado Desert, Cottonwood Springs 670 Comment
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Oct 9 2010
  UCR29824  Gilia stellata George K. Helmkamp 1983-3-24 383- 15 Riverside Sonoran (Colorado) Desert, north base of the Little Chuckwalla Mountains, 1.5 miles east of Graham Pass Road 336 Comment
  UCR88428  Gilia stellata A. C. Sanders, K. C. Rose 1995-4-5 16348 Riverside San Bernardino Mtns./Sonoran (Colorado) Desert, Coachella Valley; south of Mission Creek and west of Hwy 62 701 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
  RSA716722  Githopsis diffusa Fred M. Roberts, Robert Allen, Chris Barnhill 2003-4-26 5660 Riverside Upper San Juan Canyon, along San Juan Loop Trail, 0.8 km NNW Upper San Juan Campground. 520 Comment
  SD134486  Githopsis diffusa Craig Reiser 1989-4-19 Riverside Near intersection of De Portola Road and Colt Road Comment
  RSA614468  Githopsis diffusa subsp. candida D. L. Banks 1997-4-5 1707 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
  SD128006  Glyceria striata Michael Curto 1989-8-6 598 Riverside San Jacinto Mts, Fuller Ridge Trail, springy N headwaters of Fuller Mill Cr 2695 Comment
  RSA709450  Gnaphalium californicum T. B. Salvato, John Green 2004-5-27 708 Riverside Head of Banning (San Gorgonio River) Canyon close to the San Bernardino Co. line, 0.5 mi SE of Oak Glen Conservation Camp 1402 Comment
  UCR121821  Gnaphalium luteoalbum A. C. Sanders, Mark Elvin, Jane Rodgers 2001-8-17 24603 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
  RSA192005  Gnaphalium microcephalum H. A. Zuill 1966-7-7 280 Riverside San mateo canyon, 9-10 miles SW of Murrieta. Comment
  CAS-BOT-BC307401  Gnaphalium palustre Philip A. Munz 1941-5-18 16649 Riverside About 15 miles northeast of Temecula Comment
  CAS-BOT-BC307402  Gnaphalium palustre Steve Boyd 1986-5-7 1845 Riverside Terrace escarpment between Horsethief wash and Indian Truck Trail south of I-15, Temescal Canyon Comment
  RSA0112993  Gnaphalium thermale P. A. Munz, I. M. Johnston 1924-7-28 8807 Riverside Pine Flats, San Jacinto Mts. [original label says San Diego Co.] 1738 Comment
  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
  UCR211803  Gutierrezia californica Valerie Soza, Steve Boyd, Neil Gilbert 2000-12-6 1061 B Riverside Peninsular Range; San jacinto Mountains, Bautista Canyon, Bautista Canyon Road 915 Comment
  RSA0121079  Gutierrezia microcephala Sherwin Carlquist 1958-10-12 630 Riverside Riverside - San Bdo. co. line. Comment
  JEPS18965  Gutierrezia sarothrae W. L. Jepson 1901-5-17 1232 Riverside mesas e Riverside; Southern California, Riverside to Santa Rosa Peak and Paloma Comment
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Sep 11 2007
  UCR217646  Harpagonella palmeri Jeff B. Galvin 2010-3-25 120 Riverside Perris-Aguanga Basin, West of Lake Matthews, south of Cajalco Road. Just east of small riparian woodland. Northwest side of a clay hill. 430 Comment
  UCR59677  Harpagonella palmeri Steve Boyd, T. S. Ross, L. Arnseth 1989-3-19 3036 Riverside Peninsular Range, Vail Lake area, 0.5 mi WNW of dam, S flank Oak Mountain 488 Comment
  RSA0066607  Harpagonella palmeri Steve Boyd, Tim Ross, Laurel Arnseth 1989-3-16 3029 Riverside Vail lake Area, 0.5 mi WNW of dam, S flank Oak Mt. 487 Comment
  UCR135846  Helianthemum scoparium A. C. Sanders 2004-4-20 27535 Riverside Santa Ana Mtns., Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line 640 Comment
  UCR9266  Helianthemum scoparium O. F. Clarke 1969-10-25 s.n. Riverside San Jacinto Mtns, Along Banning- Idyllwild Rd. near the Poppet Flats turnoff 1280 Comment
  SD181695  Helianthus annuus Scott D. White 1996-9-22 4541 Riverside Perris: Nuevo Road near intersection with Wilson Ave., west of San Jacinto River crossing. 434 Comment
  UC32265  Helianthus annuus H. M. Hall 1901-8-1 2649 Riverside Moreno Comment
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Mar 20 2011
  RSA396470  Helianthus gracilentus Walter Wisura 1987-5-21 4153 Riverside 5.3 miles fr Hwy 243 along old Idyllwild rd. Comment
  RSA596777  Heliotropium curassavicum D. L. Banks, K. D. Hedge 1996-5-16 1039 Riverside NW Palomar Mountains; Agua Tibia Mountains; N foothills of Dorland Mtn., S of Temecula Creek; 0.4 miles N of Hwy. 79 on the E side of Pauba Road, along a sandy wash. 377 Comment
  UCR182435  Heliotropium curassavicum Mitch Provance 2005-5-17 6584 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
  UCR21853  Heliotropium curassavicum Steve Boyd 1980-7-16 s.n. Riverside Perris Basin, Motte Reserve, 2.5 miles NW of Perris, west edge of the reserve c. 1/4 mile north of the Motte's house 520 Comment
  RSA544427  Heliotropium curassavicum var. oculatum Steve Boyd, Timothy S. Ross, D. Zippin, T. Oberbauer 1991-6-14 6332 Riverside Skunk Hollow Area, 2 miles E of Murrieta Hot Springs, just W of Second San Diego Aqueduct. Comment
  POM360280  Hemizonia fasciculata Christopher Davidson 1977-5-25 5657 Riverside Mesa de Burro Santa Rosa Plateau area of Santa Ana Mountains. 701 Comment
  UCR136201  Hemizonia fasciculata A. C. Sanders 2004-6-20 28221 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., hilltop above I-15, SW of main clay pits 378 Comment
  UCR101837  Hemizonia kelloggii B. G. Pitzer 1997-4-1 3063 Riverside Lakeview Mtns, c. 0.75 air mi. SSW of Mt. Rudolph, c. 1 air mi NE of Contour (Juniper Flats) Rd. 655 Comment
  RSA94099  Hemizonia kelloggii F. W. Peirson 1925-5-20 6011 Riverside Aguanga. 610 Comment
  RSA740627  Hemizonia mohavensis Scott D. White, Justin M. Wood 2008-7-8 12382 Riverside San Jacinto Mountains: Hurkey Creek Watershed- Bonita Vista Rd, ca 1/2 miles E and W of Hurkey Creek crossing. 1512 Comment
  RSA715053  Hemizonia paniculata A. C. Sanders, T. B. Salvato 2003-5-21 26787 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
  RSA737436  Hemizonia paniculata Justin M. Wood 2008-8-31 120 Riverside Romoland, 1/4 mile S of Ethanac Rd. between San Jacinto Rd. and Palomar Rd. just south of railroad tracks. 442 Comment
  UCR105990  Hemizonia paniculata D. L. Banks 1997-5-5 1952 Riverside NW Palomar Mtns., Agua Tibia Mtns: NW foothills of Dorland Mtns, along Los Caballos Road, approx 0.4 m south of Hwy 79, 150 m north of Anza Road. Along the W side of the road in areas burned by the 1996 Temecula Fire 390 Comment
  UCR12551  Hemizonia paniculata Eric Trubschenck 1972-5-8 12 Riverside Moreno Valley, 12 miles east of Riverside, 1 mi south of intersection of Alessandro Blvd with Wilmot Street 549 Comment
  UCR167830  Hemizonia paniculata T. B. Salvato, Melissa Clemons 2005-6-2 1354 Riverside Peninsular Range; Temescal Valley, Gavilan Hills, c. 0.5 mi SE of Steele Peak, 4 miles SW of Perris, and 6 miles NNE of Lake Elsinore, NW of Hwy 74 610 Comment
  CLARK-A1528-240  Hemizonia pungens Ruth Cooper 1941-6-8 77 K Riverside Menifee Valley Comment
  RSA514387  Hemizonia pungens subsp. laevis Scott D. White 1997-5-25 5244 B Riverside Winchester area: Roadside of Simpson Ave., less than1 mi W of intersection w/ Winchester Rd. 445 Comment
  UCR114639  Hemizonia pungens subsp. laevis Fred M. Roberts 1992-8-5 4846 Riverside Anza Valley, Cahuilla Indian Reservation, near northern edge 1170 Comment
  UCR148720  Hemizonia pungens subsp. laevis B. L. Jones 2003-5-29 s.n. Riverside Lake Elsinore area, just N of the intersection of Corydon Rd. and Grand Rd 393 Comment
  UCR166800  Hemizonia pungens subsp. laevis R. E. Riefner Jr. 2004-8-27 04- 397 Riverside N of La Sierra Heights; NE (c. 1 mi) off Arlington Avenue, along dirt access road to Hidden Valley Wildlife Reserve 207 Comment
  UCR205989  Hemizonia pungens subsp. laevis Karen Kirtland, Stephanie Pacheco 2009-6-8 s.n. Riverside San Jacinto Valley, Ramona Blvd. near Potter Rd., SE of Sanderson Ave. and south of the Ramona Expressway, c. 0.5 mi. north of San Jacinto Reservoir and c. 2 miles south of Gilman Hot Springs 454 Comment
  UCR211704  Herniaria hirsuta subsp. cinerea Fred M. Roberts, Kerry M. Byrne 2006-5-4 6331 Riverside Perris-Agunaga Basin, West Hemet Hills, 1.0 km northeast of the junction of Stowe and Winchester Roads 470 Comment
  UC1931078  Heterocodon rariflorum Scott D. White, Justin Wood 2008-7-9 12429 Riverside San Jacinto Mountains: K Flat, from large pond downstream to meadow. Comment
  UCR24903  Heterocodon rariflorum A. C. Sanders 1980-7-22 1735 Riverside San Jacinto Mtns, along road 5S09 between the USC Idyllwild campus (Isomata) and Alvin Meadow; about 0.25 mi from Isomata 1524 Comment
  RSA701644  Heteromeles arbutifolia Keith E. Hoffmaster 1933-12-18 s.n. Riverside Santa Ana Mountains Comment
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May 7 2008
  RSA0075899  Heterotheca grandiflora D. L. Banks, Lauren Raz 1996-11-5 1153 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, S of San Gabriel Church; Along a newly established firebreak along a NW-SE running ridgeline, near the water tank. 402 Comment
  UCSB15429  Heterotheca sessiliflora subsp. echioides Breedlove, Dennis 1961-8-5 Riverside Along State Highway 74, 5 miles east of Keen Camp, Memet Valley, San Jacinto Mountains 1341 Comment
  JOTR16595  Heterotheca villosa var. scabra Baker, James K. & Baker, Ilisa T. 1966-10-14 s.n. Riverside Joshua Tree National Park. BARKER DAM 1310 Comment
  SD63342  Heuchera hirsutissima Walter Bertsch 1957-6-29 955 Riverside Desert slope of Toro Peak, Santa Rosa Mountains 2660 Comment
  UCR72231  Hibiscus denudatus Theo Glenn 1991-5-28 91- 110 Riverside Sonoran (Colorado) Desert, Mule Mountains 165 Comment
  RSA95299  Hibiscus denudatus F. W. Peirson 1922-4-9 2900 Riverside Palm Canyon Region, near Palm Springs. Comment
  UCR59709  Hilaria rigida A. C. Sanders 1989-9-19 9496 Riverside Sonoran (Colorado) Desert, Chocolate Mountains Aerial Gunnery Range, 1.75 km (airline) south of Tabaseca Tank, along the wash above 'Tabaseca Target 680 Comment
  UCR98430  Hilaria rigida John Wear, N. Moorhatch 1997-3-20 s.n. Riverside San Jacinto Mtns, S of Chino Canyon, at NW end of Palm Springs 350 Comment
  SEINET4585063  Hilaria rigida J. Davy 1902-4-2 15 Riverside Salton Comment
  SEINET2061522 Image available Hoffmannseggia glauca Norman C. Cooper 1949-4-8 3322 Riverside Blythe, low place in desert 259 Comment
  SBBG51122  Hoffmannseggia microphylla N. R. Zabriskie 1973-7-11 561 Riverside SE of Pack Rat Hill, Deep Cyn drainage 304 Comment
  UCSB33254  Hoffmannseggia microphylla Miller, Brian 1963-6-1 Riverside Powerline Access Road, 1/2 mile SW of Biskra Palms 24 Comment
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Jun 1 2013
  RSA597947  Holcus lanatus F. M. Reed 1907-6-23 1434 Riverside Old abandoned field in Santa Ana River bottom above West Riverside Bridge. 244 Comment
  UCR141247  Holocarpha virgata subsp. elongata A. C. Sanders, Kelly Volansky 2004-10-6 28810 Riverside Santa Ana Mtns./Santa Rosa Plateau, 41050 Avenida La Cresta, south of Sierra Maria Rd. and c. 1.5 mi. north of Tenaja Rd., c. 2 miles NW of the Mesa de Colorado 671 Comment
  UCR217500  Holocarpha virgata subsp. elongata Karyn L. Drennen 2009-6-19 1 Riverside Santa Ana Mtns- foothills, Santa Rosa Plateau, north of Monument Hill Rd 586 Comment
  RSA556438  Hordeum intercedens Julie Greene 1993-4-17 1201 Riverside West of Davis Road. 433 Comment
  RSA563861  Hordeum intercedens A. C. Sanders 1993-5-12 14016 Riverside Hemet, W side of Warren road, 1/2 mile S of Florida Ave. (Hwy 74), between the New San Diego Aqueduct and Warren, directly opposite of the W end of Whittier Road. 457 Comment
  UCR176899  Hordeum intercedens Tracy Tennant 1998-4-21 245 Riverside San Jacinto Valley, Stetson Ave. at Warren Rd., near Hemet-Ryan Airport 457 Comment
  UCR92703  Hordeum intercedens A. C. Sanders, D. Malueg, K. D. Jones 1996-4-20 18057 Riverside San Jacinto Valley, San Jacinto River between Nuevo and Lakeview, from 11th to 13th Streets, E side of the river channel 433 Comment
  SD244056  Hordeum marinum T. B. Salvato, Mall Malle, Tom Sullivan 2013-3-27 7452 Riverside Perris-Aguanga Basin: Menifee, vacant lot north of Newcomb Substation, at southwest corner of Lazy Creek Road and Murrieta Rd. 431 Comment
  RSA772332  Hordeum murinum subsp. glaucum Orlando Mistretta, Duncan Bell, Jill Beckman, J. D. England, Katie Kane, Jamie Hall, Chris McDonald 2010-4-12 4512 Riverside Whitewater Cyn. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor Center (Whitewater Trout Farm). 609 Comment
  RSA192270  Hordeum murinum subsp. leporinum E. W. Lathrop 1960-5-6 4798 Riverside 10 miles west of Murrieta. Comment
  CAS-BOT-BC148571  Horkelia clevelandii Carl B. Wolf 1932-8-4 3927 Riverside Strawberry Valley, 1 1/2 mi. from Idyllwild on road to Binning - San Jacinto Mts. 1706 Comment
  UCR270626  Horsfordia newberryi John F. Emmel 1998-1-24 1534 Riverside Sonoran (Colorado) Desert, Coahella Valley, near east base of Santa Rosa Mountains, along wash below Devil Canyon and Guadalupe Canyon, 1.3 air miles south and 0.3-0.8 air mile west of intersection of Jefferson Street and Avenue 58 122 Comment
  UCSC008082  Hosackia oblongifolia var. oblongifolia Peter Kamb 1947-6-7 560 b Riverside San Jacinto Mts., Hall Canyon 1646 Comment
  JEPS30449  Hulsea vestita Donald W. Kyhos 1958-5-16 58 -187 Riverside 2.5 mi w Aguanga turnoff (Palms-to-Pines Highway); San Jacinto Mountains Comment
  UCR34976  Hulsea vestita subsp. callicarpha L. B. Ziegler 1972-5-29 466 Riverside San Jacinto Mtns., W slope along Hwy 74 1341 Comment
  UCR17007  Hydrocotyle umbellata O. F. Clarke 1975-7-21 s.n. Riverside Riverside, UCR Botanical Garden beside a pond 400 Comment
  POM361084  Hymenoclea salsola N. C. Cooper 1948-5-13 2842 Riverside Morongo Pass. 854 Comment
  RSA126704  Hymenoclea salsola Peter H. Raven 1958-1-23 11414 Riverside 2.7 miles west of Whitewater Post Office. Comment
  RSA388391  Hypericum perforatum R. F. Thorne 1985-7-18 60067 Riverside Santa Rosa Plateau: Upper Clinton Keith Road 488 Comment
  UC1931097  Hypericum scouleri Scott D. White, Justin Wood 2008-7-8 12369 Riverside San Jacinto Mountains: Hurkey Creek Watershed - Bonita Vista Rd. ca. 1/2 miles E and W of Hurkey Creek crossing. Comment
  RSA305949  Hyptis emoryi Fay A. MacFadden 1940-3-17 15284 Riverside Road from 29 Palms to Indio, 2/3 of way to Indio. San Bernardino Mtns Comment
  SEINET12277046  Hyptis emoryi E. A. Purer 1935-1 6464 Riverside E slope of Mt. San Jacinto, near Palm Springs, Colorado desert Comment
  SEINET6744646 Image available Hyptis emoryi L. S. Rose 1946-12-27 46308 Riverside 900 ft alt. 7 mi southwest of Indian Wells, Riverside County California Comment
  UCR132779  Ipomoea triloba S. J. Myers 1996-11-25 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, Indio, near Auto Center Drive east of RR and of Indio Blvd. -6 Comment
  UCR177108  Iris pseudacorus Michael D. Wilcox 2004-5-18 s.n. Riverside San Bernardino Mtns., top of Banning Canyon along Forest Service Rd. 1372 Comment
  RSA0028827  Isocoma acradenia W. Schlegel, Andrew Troutte, Jordan Zylstra 2008-9-4 20 Riverside San Jacinto and Santa Rosa Mts.: Idyllwild: Along road. Comment
  OBI16009  Isocoma acradenia var. eremophila Lewis S. Rose 1961-11-23 61062 Riverside La Quinta 15 Comment
  RSA754121  Isocoma acradenia var. eremophila W. Schlegel, Andrew Troutte Jordan, Jordan Zylstra 2008-9-4 20 Riverside San Jacinto and Santa Rosa Mts.: Idyllwild: Along road. Comment
  UC2015589  Isocoma menziesii Scott D. White 1995-12-30 3802 Riverside Perris Basin SW of Perris, above S bank of San Jacinto River. Comment
  UCR245799  Isocoma menziesii A. C. Sanders, T. B. Salvato, Ana Hernandez, Karyn Drennen, Angela Collada 2013-10-2 40961 Riverside Peninsular Range, Wilson Valley Preserve, 0.12 mi. S of Wilson Valley Rd., 1.1 mi. east of Sage Rd., 1.65 mi. east (87 deg. ) of Round Top Mtn. 770 Comment
  CDA32720  Isocoma menziesii var. vernonioides Mike Lahti 2009-10-13 PDR# 1501839 Riverside Hemet. Found off Deportola Road on Colt Road. 0 Comment
  RSA559314  Isolepis cernua Steve Boyd, Timothy S. Ross, David E. Bramlet 1993-5-13 7374 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Wildhorse Canyon, from confluence with Los Alamos Canyon upstream approx. 1 mile. 412 Comment
  UC1463089  Isomeris arborea Arthur S. Barclay and Juan Arguelles 1965-3-4 1797 Riverside 4 mi n State Highway 79 junction with State Highway 71 (along State Highway 79) Comment
  UCR114749  Juglans californica A. C. Sanders, K. C. Rose 1999-6-18 22803 Riverside Skinner/Domenigoni area, French Valley, E side of Washington Ave., 1/2 mile south of Rawson Rd. 439 Comment
  RSA619797  Juglans nigra A. C. Sanders 1998-8-20 22231 Riverside San Bernardino Mtns: Morongo Indian Reservation, lower Hathaway Creek Canyon. 838 Comment
  RSA44869  Juncus acutus subsp. leopoldii J. C. Roos 1948-5-15 3855 Riverside Lost Palms Canyon, Eagle Mountains., Colorado Desert. Comment
  IRVC12877  Juncus bufonius B. T. Gittins 1966-5-1 1290 Riverside Santa Rosa Plateau. Peninsular Ranges, Santa Ana Mountains Comment
  JOTR32467  Juncus bufonius var. bufonius La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2612 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam; Small riparian pond environment with seasonally submerged muddy banks, surrounded by boulder outcrops (Stop 4) 1301 Comment
  UCSB26799  Juncus bufonius var. bufonius Wilken, Dieter 1969-6-30 Riverside California State Highway 74; 0.5 miles west of Keen Camp Summit; San Jacinto Mtns Comment
  RSA741157  Juncus bufonius var. occidentalis Scott D. White, Justin M. Wood 2008-5-15 11993 Riverside Johnson Meadow. 1415 Comment
  JOTR32968  Juncus macrophyllus La Doux, Tasha, Alice Miller and Victoria Sork 2009-5-3 2719 Riverside Joshua Tree National Park. Little San Bernardino Mountains, west side of Queen Mountain; granitic outcrops with sandy ephemeral wash 1408 Comment
  RSA617722  Juncus macrophyllus Scott D. White 1996-8-1 4429 Riverside Idyllwild Area: Highway 243 at Deer Springs trailhead and adjacent area., 33 deg 45N, 116 deg 43 W. 1707 Comment
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May 26 2008
  UCR151037  Juncus macrophyllus Scott D. White 1998-7-31 6952 Riverside San Jacinto Mts., Idyllwild Area: Strawberry Creek between crossing at Circle Dr. and Humber Park 1951 Comment
  POM14181  Juncus rugulosus E. C. Jaeger 1921-7-15 s.n. Riverside Massacre Canyon, [along Potrero Creek] Comment
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Nov 5 2011
  SBBG89290  Juncus textilis J. Adams 1966-4-25 738 B Riverside rd from Murrieta to De Luz; Santa Rosa Plateau 762 Comment
  UCR93082  Juncus xiphioides A. C. Sanders, S. Ogg 1994-7-28 15176 Riverside Santa Ana River between the Hwy 60 Bridge and the Mission Blvd. Bridge 243 Comment
  CAS-BOT-BC85409  Juniperus californica W. D. Clark; G. Owens 1986-11-30 1742 Riverside 17 miles W of Rte. 74 & Rte. 111 junction on Rte. 74 at the Pinyon Flat Campground Comment
  CLARK-A1528-2666  Juniperus californica John C. Roos 1947-2-15 3265 Riverside Eagle Mountains Comment
  LA202780  Justicia californica Carl Epling; 1927-3-27 sn Riverside Palm Springs 121 Comment
  RSA398815  Justicia californica Robert M. Perkins, H. de Forest 1937-3-15 387 Riverside 20 miles east of Desert Center. Comment
  RSA402291A  Justicia californica N. C. Cooper 1949-4-8 3274 Riverside Shaver's Summit east of Indio. 610 Comment
  RSA402296  Justicia californica Elbert Benjamine 1929-4-6 140 Riverside Box Canyon, Coachella Valley, Colorado Desert. Comment
  RSA402300  Justicia californica A. M. Johnson 1933-4-28 4235 Riverside On wash along Pines to Palms highway, below Palm Springs. Comment
  RSA402304  Justicia californica Christopher Davidson 1973-4-1 1846 Riverside Palm Springs. 488 Comment
  JOTR30688  Kallstroemia californica La Doux, Tasha, Jim Andre 2008-9-13 262 Riverside Joshua Tree National Park. Pinto Basin along paved Hwy at Fried Liver Wash 548 Comment
  POM44746  Keckiella antirrhinoides Marcus E. Jones 1903-5-11 s.n. Riverside Banning. 701 Comment
  RSA543179  Keckiella antirrhinoides Steve D. Boyd, Tim S. Ross, Mike Hammitt 1991-5-2 6118 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
  RSA702744  Keckiella antirrhinoides Scott D. White, Michael Honer 2004-4-6 10046 Riverside Perris / Elsinore Basin: Temescal Valley, just north of the I-15 Freeway and east of Indian Truck Trail, south and west of Lee Lake. 335 Comment
  NY786548  Keckiella antirrhinoides var. antirrhinoides S. D. Boyd 1995-4-24 8496 Riverside Palomar Range, Agua Tibia Wilderness Area, Arroyo Seco drainage on northern flank of Agua Tibia Mountain at the north base of Wildhorse Peak, along the Wildhorse Trail near the northeastern corner of the Wilderness. 670.6 Comment
  SD137611  Keckiella antirrhinoides var. antirrhinoides Darin L. Banks 1995-4-5 143 Riverside Cleveland National Forest, Agua Tibia Wilderness area, N slope of Agua Tibia Mtn., E of the Dripping springs Alcove, west of the Dripping Springs Trail 646 Comment
  JOTR32199  Keckiella antirrhinoides var. microphylla Herskovits, Tasya, M. Harding 2011-5-20 s.n. Riverside Joshua Tree National Park. Little San Bernardino Mountains; Ryan Mountain; Gentle, gravelly north facing slope near the intersection of Ryan Mountain Trail and Sheep Pass Spur Trail (Stop 3) 1361 Comment
  UCR141458  Keckiella cordifolia June Latting 1973-6-30 s.n. Riverside Santa Ana Mountains, off Skyline Drive above Corona on Sierra Peak Road, near Orange Co. line 915 Comment
  RSA802133  Koeleria macrantha Duncan S. Bell, Caitlin Elam, Carrie Kiel 2013-6-5 5016 Riverside Strawberry Creek to the southwest of Strawberry Valley, about 2.4 air miles southwest of Idyllwild. 1534 Comment
  UCR132930  Koeleria macrantha John Wear 1998-7-8 s.n. Riverside San Jacinto Mtns., Pine Meadow in eastern Garner Valley, R-Ranch, just east of Hwy 74, between Gold Hill and Thomas Mountain 1402 Comment
  UCR2487  Koeleria macrantha F. M. Reed 1928-7-10 5989 Riverside San Jacinto Mtns, Strawberry Creek at Camp Emerson, Idyllwild 1524 Comment
  UCR96412  Koeleria macrantha Scott D. White 1996-8-1 4446 Riverside San Jacinto Mtns., Idyllwild area: north of Strawberry Valley, between Bear Trap Canyon and Lily Creek 1616 Comment
  CAS-BOT-BC273676  Koeleria pyramidata Ralph Hoffman 1929-9-8 s.n. Riverside Mt. San Jacinto 1828 Comment
  CAS-BOT-BC43701  Krameria erecta H. M. Hall 1901-6-1 2114 Riverside Eastern base, along the borders of the Colorado Desert Comment
  JOTR32604  Krameria erecta La Doux, Tasha, M. Harding, T. Herskovits, D. Shade, M. Wheeler 2011-10-13 2668 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 Comment
  RSA1191  Krameria grayi B. D. Stark 1930-4-1 1496 Riverside San Gorgonio Pass. 457 Comment
  RSA735400  Krameria grayi Steve Boyd, Tammy Morgan, Aydee Virgen, Sarah De Groot, Valentin Arvizu, Tim Thibault 2004-5-14 11228 Riverside Western base of the Chocolate Mountains, small canyon, ca. 1.25 miles due north of Imperial County line and ca. 3.75 miles due west of aqueduct, accessed by dirt road off of main aqueduct road at siphon station., Within boundaries of U.S. Navy's Chocolate Mountains Aerial Gunnery Range. Comment
  CAS-BOT-BC340504  Lactuca serriola Scott D. White 1996-9-22 4543 Riverside Perris Basin, W Riverside Co. Perris: Nuevo Road near intersect. w/ Wilson Ave., W of the San Jacinto Riv crossing 435 Comment
  UCR18039  Lagophylla ramosissima A. C. Sanders, O. F. Clarke, Dan Vossler 1975-7-23 144 Riverside Santa Ana Mtns., Santa Rosa Plateau, Mesa west of Murrieta, along Tenaja Rd. about 2 mi west of the eastern escarpment of the Santa Rosa Plateau. Probably collected very near Bench Mark 1847 ft. shown on the topo map 579 Comment
  UCR207784  Lamium amplexicaule O. F. Clarke 2004-3-13 s.n. Riverside San Bernardino Valley Region, Louis Rubidoux Nature Center, along the Santa Ana River, West Riverside 226 Comment
  RSA468353  Langloisia setosissima subsp. setosissima Christopher Davidson 1979-4-4 7677 Riverside Orocopia Mts, lower end of Box Canyon on Box Canyon road, 4.4 miles E of Mecca 213 Comment
  CSUSB317  Larrea tridentata Robert A. Clark 1966-3-5 3566 4 Riverside Mecca rural; 2 miles east of Mecca on State Highway 195 on marginal agricultural land adjacent to Creosote bush scrub. -57 Comment
  RSA623985  Larrea tridentata Carol Roush 1963-4-9 6 Riverside 6 mi. south of Palm Canyon Dr. on highway 74; N-E foothills of the San Janito Mts. 457 Comment
  RSA652049  Larrea tridentata G. S. Eleiott 1949-3-15 s.n. Riverside Colorado [Desert] 15 miles east of Palm Springs. 244 Comment
  UC65002  Larrea tridentata E. E. Schellenger 1904-10-18 28 Riverside Chuckwalla Bench; Colorado Desert Comment
  RSA662182  Larrea tridentata var. tridentata Anne Greenberg 1981-5-17 105 Riverside Palm Desert, Hwy 74, 5 iles N of Hwy 111. Comment
  HSC85391  Lastarriaea coriacea Steve Boyd 1986-4-19 1697 Riverside Temescal Canyon: E side of Indian Wash between I-15 and Temescal Canyon Rd. Comment
  CAS-BOT-BC338917  Lasthenia californica A. C. Sanders; W. W. Wright; J. Latting; et al 1974-5-4 684 Riverside Santa Rosa Plateau, Santa Ana Mtns.: Mesa de Burro 610 Comment
  SD137868  Lasthenia californica Darin L. Banks, Steve Boyd 1995-3-16 87 Riverside Cleveland National Forest, Agua Tibia Wilderness Area; north slope of Agua Tibia Mountain; east of the Dripping Springs Alcove. 515 Comment
  SEINET6083065  Lasthenia californica Unknown 1996-4-19 Riverside Idyllwild Area. Strawberry Creek between crossing at Circle Drive and Humber Park. Comment
  CLARK-A1528-254  Lasthenia chrysostoma unknown 1952-4-13 Riverside Jurupa Hills Comment
  CAS-BOT-BC352880  Lasthenia coronaria Lewis S. Rose 1937-4-9 37089 Riverside Cabazon 563 Comment
  CLARK-A1528-251  Lasthenia coronaria 1938-4-4 Riverside Riverside Comment
  JEPS29304  Lasthenia coronaria Rimo Bacigalupi, and L. Heckard 1962-3-25 8399 Riverside about 10 air miles nw Elsinore (near Arcilla siding of A.T. & S.F. Railway, just below and e of state Highway 71); Temescal Wash 289 Comment
  POM6021  Lasthenia coronaria M. Alice King 1893-1 s.n. Riverside Menifee. Comment
  RSA150913  Lasthenia coronaria Peter H. Raven 1962-3-19 16913 Riverside State Highway 74, 1.6 miles northeast of junction with State 71, north of Elsinore. Comment
  RSA487549  Lasthenia coronaria Bill Wagner 1988-3-2 s.n. Riverside Glenoaks Road about 2.5 mi S if Lake Skinner and ca. 8 mi NE of Temecula. 564 Comment
  UC30482  Lasthenia coronaria Geo. R. Hall 1901-3-17 1677 Riverside Riverside Comment
  UC69031  Lasthenia coronaria H. M. Hall 1905-4-1 5752 Riverside Beaumount Comment
  UCR152634  Lasthenia coronaria A. C. Sanders 2005-4-22 29588 Riverside Gavilan Hills, Gavilan Plateau c. 0.75 air mi. SE of summit of Gavilan Peak 625 Comment
  RSA550491  Lasthenia glabrata subsp. coulteri D. E. Bramlet 1992-4-9 2220 Riverside 2.6 km west of Lake View and 15m to 100m east of the San Jacinto River and just west of an existing dirt access road. The site is approximatly 440m south of the MWD easment road. Comment
  PASA1563  Lasthenia glabrata var. coulteri Frank W. Peirson 1922-4-29 Riverside Lake Elsinore 374 Comment
  POM361559  Lasthenia gracilis C. B. Wolf 1932-3-20 24 Riverside Richman Ranch, 2.5 miles north of De Luz. 457 Comment
  POM8238  Lasthenia gracilis P. A. Munz, R. D. Harwood 1920-3-20 3393 Riverside Elsinore. 396 Comment
  RSA192189  Lasthenia gracilis E. W. Lathrop 1966-3-20 6057 Riverside 3 miles W of Murrieta Comment
  RSA695577  Lasthenia gracilis Keith E. Hoffmaster 1936-4-26 712 Riverside Box Springs grade. Comment
  UCR113182  Lasthenia gracilis A. C. Sanders 1998-3-11 21665 Riverside Shipley/Skinner Reserve area, North Domenigoni Hills, north of Diamond Valley, near east end of hills 518 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
  POM10364  Lathyrus vestitus subsp. laetiflorus Charlotte M. Wilder 1904-5-13 76 Riverside North side of Jurupa Hills Comment
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Sep 3 2011
  JEPS39176  Layia platyglossa W. L. Jepson 1939-4-17 19157 Riverside Temecula Temecula 304 Comment
  RSA495457  Layia platyglossa Steve Boyd, T. S. Ross, L. Arnseth 1989-3-18 2985 Riverside Agua Tibia Mountains. Vail Lake area, Temecula Creek Canyon below Vail Lake dam. 418 Comment
  SEINET11447836 Image available Layia platyglossa F. Gillman 1904-1 4 Riverside Banning Comment
  UC62887  Layia platyglossa H. M. Hall 1902-4-22 2951 Riverside vicinity Riverside 304 Comment
  UCR114018  Layia platyglossa Mitch Provance 2000-4-8 2008 Riverside Jurupa Mountains, S extension of 'Rattlesnake Mt.', <100 m west of peak 1739. 518 Comment
  UCR124663  Layia platyglossa B. C. Templeton 1930-4-9 1024 Riverside San Bernardino Mtns., north of Banning 1220 Comment
  UCR16860  Layia platyglossa Heidi A. Haid 1964-5-10 64510- 08 Riverside Peninsular Range; San Jacinto Mtns., about 2 miles east of Idyllwild junction [Mountain Center?] on Hwy 74 'Hemet Meadow 1372 Comment
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Jan 8 2013
  UCR182347  Layia platyglossa Mitch Provance 2005-5-17 6551 A 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
  UCR48498  Lemna gibba Steve Boyd 1986-5-5 1851 Riverside Gavilan Hills, Estelle Mtn. Head of large canyon draining the SE side of Estelle Mtn. Comment
  RSA588600  Lemna minuta Darin L. Banks, Steve Boyd 1995-10-17 811 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along lower Arroyo Seco, S of the Dripping Springs Campground., Along the narrow benches where Arroyo Seco turns to the E, just W of the Metasedimentary hills. 524 Comment
  SBBG104069  Lepidium dictyotum A. C. Sanders 1993-4-1 13669 Riverside western edge of Hemet, NE corner of intersection of Myers St. and Devonshire Ave, 0.75 mi NE of intersection of Florida Ave (St Hwy 74) and Warren Rd Just S of Tres Cerritos; T5S, R1W, SW/4 of NE/4, S7 460 Comment
  RSA776509  Lepidium fremontii Amber Swanson, Duncan S. Bell 2011-3-20 248 Riverside Canyon Springs area N of the Bradshaw Trail. 340 Comment
  UC494743  Lepidium fremontii C. L. Hitchcock 1932-4-8 12221 Riverside 1 mi w Cottonwood Springs (e Riverside County) Comment
  UCR200259  Lepidium fremontii var. fremontii J. M. Porter, Orlando Mistretta 2003-6-5 13608 Riverside Colorado Desert; Chocolate-Chuckwalla Mountains region, Chocolate Mountains. Chocolate Mountains Bombing and Gunnery Range. Unnamed canyon, south of Salt Creek, accessed via Siphon 21 of the Coachella Canal, fork running east, above the pour-off 439 Comment
  UCR218317  Lepidium fremontii var. fremontii Jim Andre, T. La Doux 2009-3-10 11247 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
  CAS-BOT-BC89585  Lepidium lasiocarpum Munz; Street; Williams 1919-3-25 2315 Riverside Palm Canyon, Palm Springs. 243 Comment
  RSA678339  Lepidium lasiocarpum Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10476 Riverside East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  UCR93064  Lepidium latifolium A. C. Sanders 1994-7-26 15148 Riverside Santa Ana River at the Mission Blvd/7th street Bridge, W foot of Mt. Rubidoux 240 Comment
  RSA522317  Lepidium latifolium Steve Boyd 1989-7-23 3787 Riverside City of Riverside, Santa Ana River, just downstream of old city dump at W extension of Rubidoux Avenue. Comment
  RSA516883  Lepidium nitidum Steve Boyd 1986-3-1 1368 Riverside Gavilan Hills, Gavilan Plateau: 1/4 mile south of Harford Springs County Park. 640 Comment
  RSA0106416  Lepidospartum squamatum Alan Romspert 2000-7-28 s.n. Riverside Santa Ana Riverbed between Riverside Ave & Market St. Bridge. Comment
  UCR2518  Leptochloa uninervia F. M. Reed 1926-5-15 5342 Riverside Peninsular Range; Perris/Aguanga Basin Region, Menifee Valley, west of Menifee schoolhouse [which was at corner of corner of Newport and Bradley Roads] 457 Comment
  RSA559959  Leptosiphon androsaceus Steve Boyd, Orlando Mistretta 1992-4-23 7070 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
  POM364533  Leptosiphon ciliatus Anstruther Davidson s.n. Riverside San Jacinto Cal. Comment
  RSA263686  Leptosiphon floribundus E. W. Lathrop 1968-5-22 6927 Riverside Main Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  POM3569  Leptosiphon floribundus subsp. glaber Robinson, Crocker 1916-3-28 s.n. Riverside Santa Ana Mountains. Comment
  SD133039  Leptosiphon floribundus subsp. glaber Scott White 1991-5-13 91 88 Riverside Highway 79, immediately west of U. S. Forest Service Campground at Dripping Springs. 548 Comment
  UCR274211  Leptosiphon floribundus subsp. hallii Duncan S. Bell 2014-11-14 7704 Riverside Santa Rosa Mountains, Santa Rosa Mountain Wilderness area, west side of Martinez Mountain, at meeting point of Horsethief Creek and the Cactus Spring Trail 1055 Comment
  RSA0080324  Leptosiphon lemmonii Sarah J. De Groot, Cheryl Sevilla 2015-3-18 7370 Riverside White Water Canyon, along the Pacific Crest Trail, just west of the White Water Preserve; south of Red Dome. Southwest of Morongo Valley, west-northwest of Desert Hot Springs. 718 Comment
  RSA282787  Leptosiphon lemmonii C. W. Tilforth, B. Busenberg 1980-10-6 1989 Riverside Small moist wash 3.8 miles in from Highway 74 along Thomas Mtn. Road, south of Hemet. Comment
  RSA667000  Leptosiphon pygmaeus subsp. pygmaeus A. C. Sanders, Mitch Provance, T. B. Salvato 2001-5-8 24181 Riverside S. of Hemet, E end of Diamond Valley, ca 1/4 mi. N of Newport Rd. and 3/4 mi. E of State St. 506 Comment
  RSA561100  Leymus triticoides Steve Boyd, D. E. Bramlet 1992-5-12 7333 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Tenaja Canyon. 366 Comment
  RSA368915  Lilaea scilloides S. B. Parish 1890-03 s.n. Riverside Near Colton. Comment
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Sep 24 2016
  SEINET3887040  Lilaea scilloides Robert F. Thorne, M. Z. Thorne; Walter Wisura 1978-5-21 51990 Riverside Santa Rosa Plateau: Mesa de Colorado.; 0 610 Comment
  JEPS5818  Lilium parryi H. M. Hall 1898-1 Riverside San Jacinto Mountains Comment
  UCR189810  Lilium parryi Josh Koepke 2005-8-10 067 Riverside Peninsular Range- San Jacinto Mountains, Northern region of San Jacinto Mts, c. 1 km northeast of Highway 243, in stream above (east) Dark Canyon campground road 1767 Comment
  UCR234764  Limonium duriusculum A. C. Sanders, John F. Green 2012-6-25 40298 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, benches south of I-15 and east of Horsethief Canyon Rd., north end of Bucking Bay Dr. 433 Comment
  UCR908  Linanthus androsaceus subsp. micranthus Frank C. Vasek 1958-4-26 s.n. Riverside Peninsular Range, Highway '71' [79/371], east of Temecula, 1.6 miles [E] of junction of state Hwy 79 Comment
  RSA525324  Linanthus bigelovii Steve Boyd, A. C. Sanders, Mark Skinner 1990-4-28 4455 Riverside Vail Lake area, benches along Kolb Crk., W of Dripping Springs, N of Hwy 79. 487 Comment
  LA206675  Linanthus californicus Elizabeth McClintock; J. Fenley 1937-7-10 sn Riverside San Jacinto Mountains, between Hidden Lake and Round Valley Comment
  POM128362  Linanthus californicus Thos. Craig 1927-4-23 207 Riverside Glen Ivy. Comment
  UCR144417  Linanthus dianthiflorus Scott D. White, Michael Honer 2003-4-9 8982 Riverside Perris-Aguanga Basin, Gavilan Hills, c. 1 mi N of the I-15 Fwy and 1 mi east of the Lake Street exit, on and around unnamed peak '2349 640 Comment
  UCR59750  Linanthus dianthiflorus Steve Boyd, T. S. Ross, L. Arnseth 1989-3-31 3092 Riverside Vail Lake area, S of Hwy 79, Kolb Creek drainage, west of Woodchuck Rd. 512 Comment
  RSA359854  Linanthus dianthiflorus subsp. dianthiflorus Steve Boyd 1986-4-2 1632 Riverside Gavilan Plateau, Gavilan Hills, Harford Springs County Park. 610 Comment
  UCR13884  Linanthus floribundus J. Zabriskie 1973-8-12 374 Riverside Santa Rosa Mtns., Horsethief Canyon Comment
  UCSB32922  Linanthus jonesii Patterson, R. 1978-4-29 Riverside North end of Aqueduct Rd, N of Dillon Rd., near North Palm Springs 500 Comment
  UC880048  Linanthus lemmonii Marcus E. Jones, A. M. 1882-4-25 3174 Riverside San Jacinto Comment
  UCR101468  Linanthus liniflorus A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22216 Riverside San Bernardino Mtns., Morongo Indian Reservation, side canyon east of Middle Branch of Millard Canyon 1341 Comment
  UC52468  Linanthus parviflorus H. M. Hall 1898-4-14 Riverside Elsinore Mts. Comment
  POM229435  Linanthus pungens subsp. hallii P. A. Munz 1937-5-29 15100 Riverside Edge of Pinyon Flat, Santa Rosa Mts. 1220 Comment
  SEINET273138 Image available Linaria canadensis var. texana O. F. Clarke 1997-3-4 5454 Riverside Riverside: vacant lot at back of St. George's Episcopal church corner of SPruce St. and Watkins Dr. 305 Comment
  RSA489832  Linum lewisii D. Charlton 2127 Riverside Santa Rosa Mtns., South of Hwy. 74 dirt road to Toro and Santa Rosa Peaks. Toro Camp Area W side. 2287 Comment
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Mar 16 2014
  PASA686  Linum micranthum Frank W. Peirson 1922-5-19 Riverside Two and one-half miles northeast of Murietta on the Menifee Valley Raod Comment
  UCR27119  Lithophragma affine T. P. Krantz 1982-5-25 s.n. Riverside Peninsular Range; San Jacinto Mtns., Baldy Mountain mesa above the west end of Garner Valley 1585 Comment
  POM10221  Lobelia cardinalis subsp. graminea Anonymous 1903-8-23 436 Riverside Spring Brook west of Elliotta. [City of Riverside] Comment
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Jan 5 2015
  UCR171718  Lobularia maritima John F. Green 2006-4-25 s.n. Riverside Peninsular Ranges, Temecula, Southern California Edison right of way between residential areas, N-S corridor between S General Kearny Road and La Serena Way; east of Veterans Park 366 Comment
  UCR20687  Loeflingia squarrosa O. F. Clarke 1980-4-26 s.n. Riverside Menifee Valley Area, south of Sun City a few miles. 1.5 miles west from the intersection of Holland and Haun Roads, 2 miles SW of the intersection of Newport Rd and Hwy 395 473 Comment
  JOTR31969  Loeseliastrum schottii La Doux, Tasha, M. Harding, M. Wheeler, T. Herskovits 2011-4-14 2206 Riverside Joshua Tree National Park. Southwest Eagle Mountains; west of Lost Palms Canyon; rocky/gravelly bajada north of the Aqueduct Rd. 603 Comment
  RSA79148  Loeseliastrum schottii P. A. Munz, Percy C. Everett 1952-5-2 16256 Riverside 2 miles east of Garnet, Coachella Valley. 30 Comment
  UCR266475  Logfia filaginoides Mitch Provance, Matt Amalong 2015-3-25 315- 40 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
  UCR273660  Logfia filaginoides Mitch Provance 2001-4-19 17016 Riverside San Bernardino Valley, Jurupa Mountains, Jurupa Valley, Sunnyslope area, E of Sierra Ave, N of Lauren Ln., at SW base of 'Noname Mtn. 320 Comment
  UCR89827  Lolium perenne Karen Kirtland 1993-6-19 s.n. Riverside San Jacinto River Valley, along Hwy I-215 between 4th St. (Perris) andc. 0.25 mi south of the San Jacinto River 430 Comment
  RSA262067  Lolium perenne subsp. multiflorum E. W. Lathrop 1966-5-26 6342 Riverside Mail Divide Truck Trail between El Carriso and Santiago Peak, Cleveland National Forest. 1220 Comment
  CLARK-A1045-187  Lomatium utriculatum George K. Helmkamp 1979-5-5 Riverside Santa Ana Mountains end of road; Wildomar 7.5'Q Comment
  CAS-BOT-BC234889  Lonicera subspicata var. denudata E. W. Lathrop 1964-5-24 5388 Riverside miles W of Murrieta Comment
  POM13456  Lotus grandiflorus var. mutabilis P. A. Munz 1922-5-19 5403 Riverside Keen Camp, San Jacinto Mountains 1524 Comment
  RSA406725  Lotus heermannii N. C. Cooper 1944-5-6 1167 Riverside Whitewater Canyon. 457 Comment
  RSA450197  Lotus heermannii J. C. Roos 1952-6-13 5768 Riverside Pigeon Pass. 427 Comment
  UC15659  Lotus heermannii H. M. Hall 1901-6 2379 Riverside vicinity Strawberry Valley; San Jacinto Mountains 1584 Comment
  UCR193888  Lotus heermannii A. C. Sanders, Mitch Provance 2008-7-11 35771 Riverside Peninsular Range; San Jacinto Mtns., FS road 5S02 to Coldwater Creek below road to helipad, 1 mi. NE of Mountain Center, c. 1/2 mile NE of Keenwild Fire Station 1463 Comment
  RSA680834  Lotus heermannii var. heermannii Scott D. White, Teresa Salvato, Lia DeMarco, Jessica Christian 2001-6-30 8665 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
  RSA0034406  Lotus oblongifolius I. W. Clokey, E. G. Anderson 1935-8-21 6721 Riverside Hemet lake 1300 Comment
  UC864748  Lotus purshianus var. purshianus I. W. Clokey and E. G. Anderson 1935-8-21 6719 Riverside e of Keen Camp P.O. 1360 Comment
  UCR14209  Lotus rigidus N. R. Zabriskie 1973-2-23 565 Riverside Peninsular Range/Sonoran (Colorado) Desert, Boyd's Road Lookout, Deep Canyon, N slope of Santa Rosa Mtns (Site 18) 854 Comment
  RSA0020377  Lotus scoparius Duncan S. Bell, Keir Morse 2013-3-30 4665 Riverside A small hidden spring in an unnamed canyon to the east of Snow Canyon, about 1.8 air miles southwest of Windy Point. 482 Comment
  RSA648718  Lotus scoparius Dennice McDougall 1981-5-9 824 Riverside S on Hwy 71, 5 mi. N of Hwy 74. Road margin above Lake Elsinore. Comment
  POM1874  Lotus scoparius var. brevialatus H. M. Hall 1902-04 7473 Riverside Vicinity of Riverside 427 Comment
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Aug 19 2010
  RSA775494  Lotus scoparius var. brevialatus Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4412 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
  JEPS29296  Lotus strigosus Rimo Bacigalupi, and L. R. Heckard 1962-3-25 8391 Riverside about 5 mi se Corona (just n of Bedford Canyon, at e base of the Santa Ana Mountains); Santa Ana Mountains 304 Comment
  JEPS55856  Lotus strigosus W. L. Jepson 1901-5-17 1227 a Riverside Riverside 266 Comment
  RSA33457  Lotus strigosus N. C. Cooper 1944-3-24 1007 Riverside Banning. 701 Comment
  RSA757799  Lotus strigosus LeRoy Gross, Jackie McConnaughy, Drew Monks, Tommy Stoughton, Jane Tirrell, Malia Volke 2010-4-12 4288 Riverside From camp near 34.02539N, 116.68032W, east of the Paw, near the mouth of Catclaw Flat canyon. Dropped down the Whitewater River to the first wide alluvial canyon to the east, near 34.02133N, 116.67779W., Surveyed this canyon to near 34.02483N, 116.66819W. Then surveyed back to camp by climbing to saddle of ridge to the north, near 34.02655N, 116.67484, and small draw at south end of Catclaw Flat Canyon. 871 Comment
  RSA775600  Lotus strigosus Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 991 Riverside Iron Mountains, on southwest side of mountains in drainage on either side of the road 419 Comment
  UCR87660  Lotus strigosus A. C. Sanders 1994-5-29 14564 Riverside San Bernardino Mtns., lower Millard Canyon, at first stream crossing on Forest Service Road 2S05, near Bench Mark 2868 850 Comment
  UCR97473  Lotus strigosus A. C. Sanders 1997-3-1 19708 Riverside Riverside, Box Springs Mtns.: Coyote Hill (Bench Mark 'Versity', 1386 ft.) and ridge S and SE of the UCR Botanic Garden 427 Comment
  UCSC000928  Lotus strigosus var. strigosus Grey Hayes 2000-5-15 215 Riverside Aqueduct Road 5 mi east of Garnet Aqueduct Road, Garnet - Coachella Valley Comment
  RSA90388  Lotus strigosus var. tomentellus F. W. Peirson 1921-4-13 4085 Riverside Deep Canyon, about 12 miles southeast of Palm Springs. 274 Comment
  POM98794  Lotus tomentellus P. A. Munz 1926-1-31 9982 Riverside Clay hills, west of Dos Palmos, Colorado Desert. Comment
  POM10288  Lotus wrangelianus Charlotte M. Wilder 1905-4-19 65 Riverside West Riverside Comment
  RSA783365  Lupinus J. D. Olmsted 1960-4-17 384 Riverside Oat Flats at head of Tin Mine Canyon 9 miles southwest of Corona along Skyline Drive 823 Comment
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Jun 2 2013
  UCR1291B  Lupinus albifrons Martha McCarthy 1960-4-24 s.n. Riverside Santa Ana Mtns, 150 yd east of Teneja Rd. and c. 8 mi from the junction with Washington Ave., Murrieta 732 Comment
  RSA769615  Lupinus albifrons var. eminens E. W. Lathrop 1974-6-4 7404 Riverside 3 miles southwest of Corona, Cleveland National Forest, Trabuco District 274 Comment
  CHSC8446  Lupinus arizonicus Edward L. Smith 1958-3-21 366 Riverside 6 mi. s. Rice. nr. Priest's Well. Little Santa Maira Mt. Range. Colorado River drainage area. 365 Comment
  RSA457758  Lupinus arizonicus Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2117 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  UC1129709  Lupinus arizonicus H. S. Yates 1937-3-23 6420 Riverside 5 mi nw Edom; Thermal Quad., nw of Edom Comment
  SD152852  Lupinus bicolor Steve Boyd, Tim Ross 1992-5-5 7229 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, eastern portions of Oak Flats along the Bluewater Trail, grassland at edge of oak woodland 730 Comment
  UCR260855  Lupinus bicolor A. C. Sanders, Jake Schweitzer, Katie Young 2015-3-23 41423 Riverside San Gorgonio Pass, San Gorgonio River wash, c. 3.7 miles east of Cabazon, c. 1.25 mi. NNE of One Horse Spring, south of I-10 and east of water bottling plant, between wind farms 439 Comment
  UCR4176  Lupinus bicolor R. H. Sauer 1965-4-3 s.n. Riverside Peninsular Range, Riverside, south side of Big Springs Road, c. 500 feet from the east end of the street; west foot of Box Springs Mtns. 396 Comment
  RSA525689  Lupinus bicolor subsp. microphyllus Steve D. Boyd, L. Arnseth, Yvonne Rasmussen, F. M. Cota 1990-5-3 4560 Riverside San Jacinto Mountains, Vail Lake area, rolling terrain at jtn of Hwy R3 and Powerline Road, NE of the lake. Comment
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May 31 2008
  UC63435  Lupinus concinnus H. M. Hall 1904-5-16 4945 Riverside vicinity Riverside (Fairmount Park); vicinity of Riverside, Fairmount Park 243 Comment
  UC668380  Lupinus concinnus Annie M. Alexander and Louise Kellogg 1941-5-6 2127 Riverside 13 mi sw 29 Palms (Joshua Tree National Monument); , sw of 29 Palms 1371 Comment
  UCSB3264  Lupinus concinnus Keator, Glenn 1959-5-17 Riverside On Pines to Palms highway; about 10 miles south of Idyllwild Comment
  RSA125335  Lupinus concinnus subsp. optatus R. Weatherby 1949-6-6 640 Riverside Santa Rosa Mtn. 1982 Comment
  CAS-BOT-BC216698  Lupinus excubitus var. excubitus Mary F. Spencer 1919-6-19 1195 Riverside Idyllwild 1645 Comment
  RSA618414  Lupinus excubitus var. hallii D. L. Banks 1997-5-5 1962 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pechanga Creek, along the south fork of Pechanga Creek. 396 Comment
  POM280795  Lupinus hirsutissimus Henry J. Ramsey, Henry J. Ramsey 1940-3-15 s.n. Riverside Aguanga. (north of Riverside Co.) Comment
  UCR2890  Lupinus hirsutissimus Paul W. White 1963-5-11 51163- 14 Riverside Peninsular Ranges/ San Jacinto Mountains, 5 mi. east of Cranston Ranger Station on State Hwy 74 out of Hemet 915 Comment
  UC150162  Lupinus shockleyi E. E. Schellenger Apr. 1911 Riverside Point of Rocks Whitewater (Whitewater); Colorado Desert, Whitewater Comment
  UCR166019  Lupinus shockleyi Nathan Moorhatch 2005-2-17 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, east edge of Santa Rosa Mtns., La Quinta, west of Washington St., between Ave. 48 and Lake La Quinta Dr., 4 acre parcel 37 Comment
  CDA27582  Lupinus sparsiflorus G. D. Barbe, T. C. Fuller 1973-2-27 1046 Riverside Colorado Desert; 0.2 mile east of Coachella Canal on Highway 195 east of Mecca; Box Canyon Wash. 0 Comment
  SBBG3699  Lupinus sparsiflorus H. and M. Dearing 1937-4-10 648 Riverside E of Banning Comment
  RSA617303  Lupinus sparsiflorus subsp. sparsiflorus R. S. Woglum 1934-3-18 640 Riverside Peninsuar Ranges: San Jacinto Mountains, Coachella Valley, Snow Creek. Comment
  RSA278318  Lupinus succulentus C. W. Tilforth 1979-4-11 1788 Riverside Hills on south side of Lake Skinner, east of Murrieta. 427 Comment
  RSA527862  Lupinus truncatus Scott D. White 1991-5-10 91 -148 Riverside Hwy 79, immediately W of U. S. Forest Service campground at Dripping Springs. 549 Comment
  CLARK-A1528-4347  Lycium andersonii John C. Roos 1938-4-27 19 Riverside Riverside Comment
  HSC21253  Lycium andersonii C. L. Hitchcock 1966-3-16 24189 Riverside About 5 mi. NE of Aguanga Comment
  JOTR34398  Lycium cooperi Andre, Jim 2012-4-16 20932 Riverside Joshua Tree National Park. Along Cottonwood Spr. Rd. 2.4 miles north Cottonwood Visitor's Center 955 Comment
  UC519978  Lycopersicon esculentum Louis C. Wheeler 1933-7-27 2040 Riverside Santa Ana River at Chino Creek Chino Creek; Santa Ana River, Chino Creek 152 Comment
  RSA612131  Lythrum californicum Louis C. Wheeler 1932-7-9 936 Riverside Santa Ana River at Chino Creek. 152 Comment
  RSA785450  Lythrum californicum Jeremiah George 2011-8-9 s.n. Riverside north shore of Lake Elsinore, south of end of Lehr Dr. 384 Comment
  UCR124137  Lythrum californicum Steve Boyd, T. S. Ross 1989-8-28 3791 Riverside Peninsular Range, Vail Lake area, Temecula Creek at confluence w/ the lake & adjacent sedimentary hills to the east. 488 Comment
  UCR20968  Lythrum hyssopifolia A. C. Sanders, Steve Boyd 1980-5-19 426 Riverside San Jacinto Valley, San Jacinto River c. 1.5 miles west of Lakeview on the Ramona Expressway 427 Comment
  RSA234065  Lythrum hyssopifolia Robert F. Thorne 1969-5-19 37959 Riverside Santa Rosa Plateau: margin of N end of large vernal marsh, Mesa de Colorado, Rancho California. 625 Comment
  RSA0107901  Machaeranthera pinnatifida subsp. gooddingii Duncan S. Bell, Thomas Stoughton 2010-3-19 575 Riverside Central section of the Arica Mountains; within the Palen/McCoy Wilderness area; approximately 2.3 air miles west of Priest Well. 428 Comment
  RSA627385  Maclura pomifera A. C. Sanders, K. C. Rose 1999-6-18 22799 Riverside Skinner/Domenigoni area: French Valley, E side of Washington Ave, 1/2 mile S of Rawson Road 439 Comment
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Mar 20 2011
  RSA433286  Malacothamnus densiflorus var. densiflorus Gale Sphon 1959-5-2 327 Riverside Horsethief Canyon, Elsinore Mountains Comment
  RSA95324  Malacothamnus densiflorus var. densiflorus F. W. Peirson 1926-5-2 6724 Riverside Grade north of Dripping Spring, Temecula River, southwestern Riverside Co. Comment
  CSUSB1443  Malacothamnus fasciculatus Barry Glaser 1964-4-21 640421 2 Riverside Box Springs Mountains Box Springs Mountains (foothills); Two Trees Canyon Road, 0.3 miles from end. 365 Comment
  CAS-BOT-BC345285  Malacothrix californica H. M. Hall 1901-6-1 2182 Riverside San Jacinto Mountains. Thomas Valley 1371 Comment
  JEPS36601  Malacothrix californica Carl V. Meyer 1929-6-18 769 Riverside near Hemet Lake; San Jacinto Mts., Hemet Valley Comment
  POM362266  Malacothrix clevelandii Anstruther Davidson 1892-05 s.n. Riverside Banning Comment
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Mar 13 2011
  POM50192  Malacothrix clevelandii H. M. Hall 1901-06 2087 Riverside The vicinity of Chalk Hill 1524 Comment
  UCR213889  Malacothrix clevelandii Scott D. White, Justin M. Wood 2009-5-22 12913 Riverside San Jacinto Mountains, Idyllwild area, 'Strawberry Fuelbreak' between Strawberry Creek and road to sewage ponds 1456 Comment
  CHSC23880  Malacothrix glabrata T. M. Lane 1975-3-24 7 Riverside 1 mi n of US Interstate 10 at s entrance of Joshua Tree National Monument on Pinto Basin Rd. Mojave Desert. 533 Comment
  CHSC8376  Malacothrix glabrata Edward L. Smith 1957-4-3 263 Riverside Located 1 mi. n on hwy. 99 to 29 Palms, San Bernardino Mts. 91 Comment
  JOTR36447  Malacothrix glabrata La Doux, Tasha, M. Harding, B. Truesdell, D. Shade, E. Babich 2013-3-15 3417 Riverside Joshua Tree National Park. Southeast Coxcomb mountains; just west of bend in Hwy 177 near park boundary; desert pavements w/ braided rivulets (Stop 1) 213 Comment
  RSA33851  Malacothrix glabrata N. C. Cooper 1944-4-23 1153 Riverside Cabazon 457 Comment
  RSA779622  Malacothrix glabrata Duncan S. Bell 2010-4-1 656 Riverside Arica Mountains: east side of the mountain range, west side of Rice Valley, near the lowest eastern drainage point for the Arica mountains; approximately 4.3 air miles southeast of the ghost town of Rice. 209 Comment
  UC831115  Malacothrix glabrata Lewis S. Rose 1937-4-9 37089 Riverside Banning 706 Comment
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Mar 13 2011
  RSA588604  Malva parviflora D. L. Banks, Steve D. Boyd 1995-10-17 815 Riverside NW Palomar Mountains. Agua Tibia Mountains. Cleveland National Forest. Agua Tibia Wilderness Area. Along lower Arroyo Seco. S of the Dripping Springs Campground., Along the narrow benches where Arroyo Seco turns E, just W of the Metasedimentary hills. 524 Comment
  UCR158329  Malva parviflora A. C. Sanders, Seung-Chul Kim, Plant Taxonomy Class 2005-5-7 30071 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
  POM10230  Malvella leprosa Unspecified 1904-5-7 36 Riverside west Riverside [Rubidoux] Comment
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Sep 5 2011
  CLARK-A1528-5195  Marah macrocarpa John C. Roos 1952-3-19 5392 Riverside Box Springs Mountains 457 Comment
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Oct 23 2014
  UCR74372  Marina parryi Theo Glenn 1991-5-2 91- 26 Riverside Sonoran (Colorado) Desert, McCoy Mountains, NW of Blythe 350 Comment
  RSA776949  Marina parryi Amber Swanson 2011-3-19 242 Riverside W of Eagle Mtn Rd to Railroad tracks abt 5 mi N of I-10 307 Comment
  RSA619538  Marrubium vulgare D. L. Banks 1997-5-5 1987 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, east of San Gabriel Church along Pechanga Road, east of its intersection with Pechanga Creek, along the south fork of Pechanga Creek. 396 Comment
  UCR102813  Marrubium vulgare A. C. Sanders 1997-3-19 20056 Riverside Lake Skinner area, upper Rawson Canyon, west of Black Mountain, along the road from Lake Skinner 549 Comment
  UCR266285  Matricaria occidentalis D. E. Bramlet 2005-5-19 3860 Riverside Perris-Aguanga Basin Region, Stowe Vernal Pool, NW corner of the intersection of Stowe Rd. and California Ave., 7.9 km SW (249 deg. ) of Hemet, 3.4 km (62 deg. ) NE of Winchester 457 Comment
  RSA262114  Meconella denticulata E. W. Lathrop 1969-5-8 7021 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. 1220 Comment
  UCR143014  Medicago lupulina D. L. Crawford, I. M. Johnston 1917-6-9 1234 Riverside San Bernardino Valley/Upper Santa Ana River, Santa Ana River near Corona 152 Comment
  UCR85085  Medicago lupulina A. C. Sanders, G. K. Helmkamp, P. J. MacKay 1995-3-12 16028 Riverside Sonoran (Colorado) Desert, Coachella Valley, City of Indio, just SW of Whitewater River channel at Auto Center Drive (Hwy 111) -7.5 Comment
  CSUSB1103  Medicago polymorpha D. Gordon 1952-3-25 Riverside C.E.S. 396 Comment
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Nov 20 2011
  UCR174306  Melica frutescens A. C. Sanders, T. B. Salvato, Kelly Volansky 2006-5-28 32647 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
  CLARK-A1528-74  Melica imperfecta C. M. Flanagan 1973-4-14 OO 107 Riverside Sunnymead 609 Comment
  RSA403499  Melica imperfecta Robert Gustafson 1980-5-5 1577 Riverside Whitewater Canyon Road, 1.8 miles from the junction with Interstate 10. 610 Comment
  UCR2556  Melica imperfecta F. M. Reed 1905-5-7 742 Riverside Peninsular Range, Box Springs Mtns., spring near summit of Pigeon Pass, Riverside and vicinity Comment
  UCR92142  Melilotus indicus D. L. Banks, Steve Boyd 1995-5-3 188 Riverside Agua Tibia Mtns Watershed, Cleveland National Forest, Agua Tibia Wilderness Area, N slope of Agua Tibia Mtn., east of Dripping Springs Alcove, along lower alluvial benches of Arroyo Seco 512 Comment
  RSA0042737  Melilotus indicus John Wallace, Steve McNabb 1991-5-1 1 Riverside Colorado River. Approximately one mile south of Red Rooster Campground. Comment
  UC195312 Image available Mentha X piperita S. B. Parish 1913-9-20 8608 Riverside railway water works, Mecca Mecca; Salton Sink -57 Comment
  CLARK-A1528-5349  Mentha citrata John C. Roos 1951-9-25 5289 Riverside Riverside Comment
  POM10382  Mentzelia affinis Charlotte M. Wilder 1906-05 7 Riverside Salt Lake fill [Salt Lake RR Bridge over Santa Ana River, Riverside] Comment
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Sep 4 2011
  POM3010  Mentzelia affinis I. M. Johnston, P. A. Munz 1918-4-27 2163 Riverside Near Corona. 274 Comment
  UC64493  Mentzelia affinis H. M. Hall 1897-3-10 Riverside San Jacinto Lake Comment
  HSC87136  Mentzelia albicaulis Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. Ross 1988-3-10 2113 Riverside N end Palen Mtns., 2 mi. W of Palen Pass 300 Comment
  UCSB4198  Mentzelia albicaulis Krogen, Roger 1957-1 Riverside Box Canyon Wash, 7 mi E of Mecca on HWY 195 Comment
  SD186252  Mentzelia desertorum Theo Glenn 1991-5-8 91 85 Riverside Big Maria Mtns., north of Blythe. 377 Comment
  UCR8577  Mentzelia dispersa Heidi A. Haid 1969-5-14 s.n. Riverside San Jacinto Mtns., 7 miles up Bautista Canyon from Fairview Avenue, Valle Vista 915 Comment
  RSA781602  Mentzelia involucrata Duncan S. Bell 2011-12-30 3030 Riverside Arica Mountains: southern section of the mountain range within the Palen/McCoy Wilderness area; approximately 2 air miles southwest of Priests Well, or approximately 7 air miles southwest of the ghost town of Rice. 365 Comment
  CSUSB971  Mentzelia involucrata var. megalantha Bruce Freeman 1968-5-4 680504 5 Riverside Whitewater Canyon, 1 mile south of point where road crosses river. 487 Comment
  POM13079  Mentzelia involucrata var. megalantha R. Evans 1921-3-30 s.n. Riverside Painted Canyon, near Mecca. Comment
  RSA583738  Mentzelia micrantha Steve Boyd 1995-4-24 8493 Riverside Palomar Range, Agua Tibia Wilderness Area, northeastern base of Wildhorse Peak, west of Devil's Hole, along the Wildhorse Trail near the rounded gabbro peak known as ''Agua''. 762 Comment
  UCR56701  Micropus californicus var. californicus Jeri Hirshberg 1989-4-11 s.n. Riverside Santa Rosa Plateau, Santa Ana Mtns., south of town of Murrieta, just west of Mesa del Burro. Rocky creek bed below Guava-DeLuz Road, c. 1.5 mi SW of intersection w/ Hayes Avenue 610 Comment
  UCR60713  Micropus californicus var. californicus R. F. Thorne 1973-5-23 43870 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau, Mesa de Colorado 610 Comment
  RSA556449  Microseris douglasii subsp. douglasii Julie Greene 1993-4-30 1289 Riverside San Jacinto Wildlife Area. S of visitor center road and North of the old San Jacinto River drainage 433 Comment
  UCR77769  Microseris douglasii subsp. douglasii Steve Boyd, D. E. Bramlet 1991-5-13 6233 Riverside Peninsular Range, Winchester Valley between Winchester and Hemet along upper Salt Creek drainage. Vernal pool association in pasture north of Santa Fe Railroad tracks, west of San Diego Aqueduct 457 Comment
  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
  POM316517  Microseris heterocarpa Charlotte M. Wilder 1904-4-23 114 Riverside Jurupa Hills near Riverside. Comment
  RSA524438  Microseris heterocarpa Steve Boyd, Timothy S. Ross, Laurel Arnseth, Jaime Bonilla 1990-4-3 4054 Riverside Vail Lake area, summit of Big Oak Mountain at E end 793 Comment
  RSA543952  Microseris heterocarpa Steve Boyd 1991-5-9 6184 Riverside Santa Ana Mountains, lower flank of range along the Bedford Truck Trail on ridge between Bedford and McBribe Canyons. 549 Comment
  RSA586495  Microseris heterocarpa D. L. Banks, S. D. Boyd 1995-5-9 0326 Riverside NW Palomar Mountains; Agua Tibia Mountains; N of the Cleveland National Forest and the Agua Tibia Wilderness Area; N slope of Agua Tibia Mtn., the Dorland Mtn. area, W of the Dripping Springs Alcove Area, W of Woodchuck Campground. 732 Comment
  RSA0065433  Microseris heterocarpa Marion P. Harthill 1976-5-6 s.n. Riverside Rancho California. 609 Comment
  RSA500986  Microseris lindleyi Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-1 3105 Riverside Vail Lake area, at N base of rounded knob 1.25 mi WSW of dam. 610 Comment
  UCR228845  Microseris lindleyi A. C. Sanders, Nathan Moorhatch 2011-3-22 38788 Riverside Peninsular Range; Perris-Aguanga Basin, Romoland in Menifee Valley, powerline route along McLaughlin Rd. east of Trumble Rd. and west of Antelope Rd. 440 Comment
  SDSU10753  Mimulus aurantiacus Stan Mather 1938-5-13 Riverside Lake Elsinore Grade. Comment
  RSA192316  Mimulus aurantiacus var. pubescens H. A. Zuill 1966-3-20 96 Riverside About 2 mi. WSW of Murrieta. Comment
  UCSB38664  Mimulus aurantiacus var. pubescens Cowan, Clark 1978-4-25 Riverside 6.7mi(10.7 km) SW on 74 from jct w/ 71; 4.6 mi(7.3 km) from Lake Elsinore; Sta. Ana Mts; Cleveland Nat. Forest; Whittaker transect #W-229 Comment
  RSA708154  Mimulus bigelovii Scott D. White, B. Leatherman 2005-5-4 11010 Riverside Eastern Coachella Valley. Thermal area; bajada below Mecca Hills and East of the Coachella Canal. 24 Comment
  UCR281481  Mimulus brevipes Mitch Provance, Matt K. Beyers, John Hazlett 2017-3-30 317- 79 Riverside Temescal Valley, 0.4 miles SE of Horsethief Canyon Rd. and the 15 Fwy. 391 Comment
  RSA0054836  Mimulus brevipes Keith E. Hoffmaster 1937-6-6 763 Riverside Near Valle Vista, Hemet Valley. Comment
  UCR21993  Mimulus cardinalis Steve Boyd 1980-7-12 331 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan plateau 610 Comment
  UCSB26918  Mimulus cardinalis Wilken, Dieter 1969-6-30 Riverside Dark Canyon; along County Road R1; 7.0 miles north of Idyllwild; San Jacinto Mtns 1524 Comment
  UCR217549  Mimulus clevelandii Diane Menuz, Ana Hernandez 2009-6-1 500 Riverside Palomar Mtns., Agua Tibia Wilderness, 3.5 km south of Hwy. 74, c. 1 km south of Korean retreat camp, along old Woodchuck trail. Steep slope next to trail 841 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
  RSA652819  Mimulus fremontii Colleen Callan 1992-5-2 14 Riverside Yucca Valley. 10 freeway east to Highway 62 east. North on Hwy 247. West on Pipes Canyon Road for Five miles. 1250 Comment
  UCR167834  Mimulus guttatus T. B. Salvato, Melissa Clemons 2005-6-23 1307 Riverside Peninsular Range; Temescal Valley, Walker Canyon, 1.5 mi due east of Alberhill, N of Hwy I-15 412 Comment
  UCR35254  Mimulus guttatus L. B. Ziegler 1968-7-17 330 Riverside San Jacinto Mtns, Hemet Valley (= Garner Valley). Valley floor; meadowy region near Lake Hemet 1357 Comment
  UC284923  Mimulus palmeri Mrs. A. L. Grant 1922-4-30 5135 Riverside hills s Tuscalota Creek (on road from Aguanga to Hemet) Comment
  UCR19054  Mimulus pilosus John C. Roos 1948-6-19 3882 Riverside San Jacinto Mtns., Roadside [vicinity of Dark Canyon] 7 miles north of Idyllwild Comment
  UCR274289  Mimulus pilosus T. B. Salvato, Melissa Clemons 2005-6-6 1413 Riverside Peninsular Range, Gavilan Hills, c. 0.75 mile south-southeast of Steele Peak, 0.6 mile E of Hammack Ranch, and 5 miles north-northeast of Lake Elsinore 579 Comment
  UCR89771  Mimulus pilosus Scott D. White 1993-5-27 1420 Riverside North Alberhill Ranch, hills north of Walker Canyon 488 Comment
  RSA586872  Minuartia douglasii D. L. Banks, Steve Boyd 1995-5-3 0291 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
  JOTR32838  Mirabilis albida La Doux, Tasha, E. Babich, M. Brown 2008-9-30 1548 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Lost Horse Valley, near Lost Horse Ranger Station; active wash near base of granitic outcrops 1250 Comment
  SDSU8463  Mirabilis bigelovii var. retrorsa A. H. Gallup 1949-3-28 362 Riverside Palms to Pines Hwy. above Desert Center [interpreted to be Palm Desert]. On dry slopes, east slope, Colorado Desert drainage area, San Jacinto Mt. Range 762 Comment
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Jan 30 2013
  UCR21136  Mirabilis californica Steve Boyd 1980-7-3 s.n. Riverside Perris Basin, Motte Reserve. Rocky hills 2.5 mi NW of Perris. Western edge of the reserve and 0.25 mi south of the NW corner of the reserve 518 Comment
  RSA775221  Mirabilis laevis Orlando Mistretta, Duncan S. Bell, Jill Beckman, Joy England, Katie Kane, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-12 4439 Riverside Whitewater canyon. Along Whitewater River drainage and adjacent slopes below Whitewater Visitor center (Whitewater Trout Farm) in the vicinity of Bonnie Bell. Between N33.94217, W116.64118 and N33.94722 W116.64305. 488 Comment
  CAS-BOT-BC434689  Mirabilis laevis var. crassifolia Marian L. Campbell 1921-3-19 58 Riverside Banning to Palm Springs Comment
  SD143816  Mirabilis laevis var. crassifolia A. C. Sanders, G. Waines, et al. 1997-3-12 19886 Riverside Lake Skinner area; lower Rawson Canyon, northeast of the lake and southwest of Black Mountain. 518 Comment
  CAS-BOT-BC434820  Mirabilis laevis var. retrorsa Ynez Whilton Winblad 1937-4-19 s.n. Riverside Near Palm Springs Comment
  RSA68292  Mirabilis laevis var. retrorsa Verne Grant, Alva Grant 1951-4-7 15979 Riverside Colorado Desert, Morongo Valley road [Hwy 62] ca. 1 miles North of Highway 60 671 Comment
  SBBG1886  Mirabilis laevis var. villosa H. and M. Dearing 1941-3-7 Riverside bajada near Cathedral City Comment
  UC101227  Mirabilis laevis var. villosa S. B. and W. F. Parish Apr 1881 659 Riverside Cabezon Comment
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Mar 21 2011
  RSA464623  Mirabilis multiflora C. M. Dammers 1929-10-20 s.n. Riverside Nigger Valley near Aguanga in a river wash in quantity in full flower and again a few plants at Anza Monument near Anza on a hill side near a spring. Comment
  JEPS61316  Mirabilis multiflora var. pubescens W. L. Jepson 1901-5-22 1376 Riverside Palm Canyon and return to <Van Deventer's> Palm Canyon 914 Comment
  POM13389  Mirabilis tenuiloba E. C. Jaeger 1922-3-18 1026 Riverside Palm Springs, Tahquitz Canyon. Comment
  UC673535  Mohavea confertiflora H. L. Mason 1928-3-10 4209 Riverside Coachella Mountains, Hidden Springs Canyon Hidden Springs Canyon; Coachella Mountains, Hidden Springs Canyon Comment
  UCR51935  Mohavea confertiflora Steve Boyd, S. Meury, Richard Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2118 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  UCR77714  Mollugo verticillata Steve Boyd, Et al 1991-6-14 6342 Riverside Peninsular Range, Skunk Hollow area, 2 mi east of Murrieta Hot Springs, just west of Second San Diego Aquaduct Comment
  LA63043  Monardella australis subsp. australis Elizabeth McClintock; 1941-7-12 108 Riverside San Jacinto Mountains, Trail to Deer Springs Comment
  RSA11400  Monardella lanceolata var. lanceolata C. Epling 1932-6-26 s.n. Riverside Jurupa Hills. Comment
  UC1931123  Monardella linoides subsp. linoides Scott D. White, Justin Wood 2008-7-10 12457 Riverside San Jacinto mountains: Fobes spring (Palm View Peak) Comment
  RSA583365  Monardella macrantha subsp. hallii Steve Boyd, Darin Banks 1995-3-30 8416 Riverside Agua Tibia Wilderness Area, northern flank of Agua Tibia Mountain at the western edge of the Dripping Springs Alcove in tributary of Kolb Creek just east of the old Woodchuck Truck Trail road grade, just south of the Wilderness boundary. 640 Comment
  UC63743  Monardella macrantha subsp. hallii H. M. Hall 1897-6-19 669 Riverside San Jacinto River San Jacinto Mountains 1341 Comment
  LA96154  Monardella nana Elizabeth McClintock; 1941-5-22 sn Riverside Anza Monument. 5 mi. S of Anza, on rd to Coyote Canyon Comment
  UCR221481  Monardella nana subsp. arida Elizabeth McClintock 1941-6-8 056 Riverside Peninsular Range; Santa Rosa Mtns., road to Santa Rosa Mtn., 0.3 mi. above Pines to Palms Highway 1456 Comment
  SEINET10582419  Monardella nana subsp. arida A. Graff 1993-6-24 Graff 57 Riverside San Bernadino National Forest, Santa Rosa Mtn. 1.5 miles down Santa Rosa Mtn. Rd. (USNFS Rd. 7S02) from Santa Rosa Camp, on top of left road cut (heading back towards Hwy. 74). T7S,R5E,S29. 1 medium-sized clump, really an outlier of 56. With Lotus scoparius and grasses. Comment
  SEINET10582424  Monardella nana subsp. arida A. Graff 1993-6-24 Graff 62 Riverside San Bernadino National Forest, Santa Rosa Mtn. 1.4 miles down Santa Rosa Mtn. Rd. (USNFS Rd. 7S02) from Santa Rosa Camp, on right roadside, west-facing slope (heading back towards Hwy. 74). T7S,R5E,S29. Locally abundant in sun and shade of Pinus jeffreyi, Quercus chrysolepis, with Eriophyllum confertiflorum, Lonicera subspicta, Phlox austromontana, Galium andrewsii, Eriogonum fasciculatum var. foliosum, Amorpha californica, Bromus sitchensis, Castilleja sp. Comment
  RSA152142  Monardella nana subsp. tenuiflora Wesley O. Griesel 1962-6-29 s.n. Riverside San Jacinto Mountains: Dark Canyon. 1921 Comment
  UCR215597  Monardella robisonii Tasha La Doux, Jim Andre 2008-9-16 349 Riverside Mojave Desert, Joshua Tree National Park, northeast end of Splitrock Picnic Area 1327 Comment
  UCR17343  Monolepis nuttalliana O. F. Clarke 1970-9-24 s.n. Riverside San Bernardino Valley Region, Riverside, Santa Ana River bottom just east of the old Salt Lake RR Bridge 216 Comment
  UCR18617  Monolepis nuttalliana O. F. Clarke 1973-3-10 s.n. Riverside Lakeview Area, 2.5 mi north of Ramona Expressway on Davis Rd. 434 Comment
  UCR187488  Monolepis nuttalliana Diane Menuz, Theresa Johnson 2006-5-9 075 Riverside Peninsular Range; Perris Basin, San Jacinto Wildlife Area, across the street from the information booth, north of Lakeview and east of Davis Rd. 434 Comment
  UC1051456  Monoptilon bellioides Herbert L. Mason 1952-4-7 14210 Riverside Palm Springs Palm Canyon Comment
  UCD80947  Monoptilon bellioides Chuck Hughes 2009-3-25 68 Riverside South of Highway 62 near the abandoned Desert Center Airport. Near city of Rice. 265 Comment
  SEINET10800992  Monoptilon bellioides David B. Dunn 1948-3-14 Dunn 3773 Riverside Found in flat open sands near Hidden Springs Ranch 5 miles south of the Indio Hills in the Colorado Desert. Comment
  SEINET2153726  Montia perfoliata W. H. Whaley 2002-1 s.n. Riverside along Idyllwild road, at mile marker 21, recent burn site, ca 3/4 mile SE of Mt. Oak Boys Ranch. 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
  HSC84169  Muhlenbergia microsperma B. G. Pitzer, L. F. LaPre 1987-3-2 432 Riverside Bundy Canyon, 2 mi SE of Lake Elsinore, 0.5 mi N of Bundy Canyon Road 703 Comment
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Nov 5 2010
  RSA524400  Muhlenbergia microsperma Steve Boyd, Timothy S. Ross, L. Arnseth, J. Bonilla 1990-4-3 4101 Riverside Vail Lake area, upper benches and adjacent slopes of the E flank of 'Big' Oak Mountain., just S of the E summit. 610 Comment
  UCR260952  Muhlenbergia microsperma Duncan S. Bell, John Anderson, Kim Clark, Debbie George, Jim George, Ed Howland 2013-9-28 6029 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, c. 22.25 air miles west of Blythe, south side of Ford Dry Lake, about 0.5 air mile southeast of Hopkins Well 107 Comment
  RSA403609  Muhlenbergia richardsonis Anstruther Davidson 1876-7-11 s.n. Riverside Top of Mount Jacinto Comment
  UCR2569  Muhlenbergia richardsonis F. M. Reed 1908-7-13 2478 Riverside San Jacinto Mtns., ridge above Tahquitz Valley 2835 Comment
  RSA561420  Muhlenbergia rigens Steve Boyd, Timothy S. Ross, Dave Bramlet 1992-9-9 7689 Riverside Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Upper San Mateo Canyon, from the junction of Tenaja Road (7S01) and Los Almos Road (7S04) and the confluence of Los Almos Creek., Up the San Mateo Trail north to Potrero de la Cienega. 396 Comment
  UCR178011  Muilla maritima T. B. Salvato, Tracy Tennant 1998-7-18 MOR- 609 Riverside San Bernardino Mtns., Morongo Indian Reservation, vicinity of Wood and Potrero Canyons 1280 Comment
  UCR216948  Myosurus minimus Kim Sparks, Ana Hernandez 2010-3-17 05 Riverside Perris-Aguanga Basin, San Jacinto Valley, Salt Creek, ~155m east of Warren Rd 458 Comment
  SD80141  Myriopteris covillei Nancy Ryan Zabriskie, Walter Zabriskie 1971-4-9 365 Riverside Deep Canyon south of Highway 74, ca 2 miles up water service road, below crossing, north slope of Santa Rosa Mountains 1310 Comment
  RSA614810  Najas marina L. C. Wheeler 1953-3-30 7033 Riverside Alligator Slough on the Colorado River. Comment
  RSA480031  Nama demissa Steve Boyd, Richard Noyes, L. Arnseth, D. Nordin, Tim Ross 1988-3-10 2154 Riverside North end Palen Mountains, 2 mi west of Palen Pass. 300 Comment
  UCR1504  Nama demissa Donna Lee Hobbs 1962-3-18 3-18-62- 4 Riverside Colorado Desert/ San Bernardino Mtns., W face of Whitewater Canyon, 5 mi. east of Cabazon on Hwy 60. Comment
  SEINET244667  Nassella cernua A. C. Sanders, Mark Elvin; Julie M. Vanderwier 2002-4-22 24985 Riverside The Badlands; upper Laborde Canyon, SW of Beaumount. 671 Comment
  SEINET244817  Nassella lepida A. C. Sanders 2002-4-22 24991 Riverside The badlands: marble outcrop on ridge about 1/2 mile east of Mt. Eden, above Laborde Canyon, SW of Beaumont. Burnt chaparral. 670 Comment
  UCD87802  Nassella lepida A. A. Beetle 1943-4-27 1939 Riverside Near Beaumont. Comment
  SEINET244824  Nassella tenuissima A. C. Sanders 2001-5-1 24067 Riverside San Bernardino Valley region: Riverside, UCR campus 335 Comment
  UCR162948  Navarretia fossalis Fred M. Roberts 1993-6-8 4884 Riverside San Jacinto River Valley; Perris, adjacent to San Jacinto River, N of Interstate 215, 0.51km N of Ellis Road and 2.4km west of San Jacinto Road 431 Comment
  UCR25246  Navarretia fossalis John C. Roos 1952-5-28 5729 Riverside Perris-Aguanga Basin region, San Jacinto River bottomland 1 mile southeast of Perris 427 Comment
  SEINET235610  Navarretia hamata A. C. Sanders 1994-5-30 14591 Riverside San Bernardino Mountains: NNE of Beaumont at Highland Springs hills N of the end of Bellflower Ave. at Dutton St. 950 Comment
  RSA336176  Navarretia prostrata R. F. Thorne, Walter Wisura 1978-5-21 51965 Riverside Santa Rosa Plateau: Mesa de Colorado. 609 Comment
  UCR87937  Nemacladus longiflorus var. longiflorus A. C. Sanders, N. Ferguson 1994-6-2 14627 Riverside San Jacinto Mtns, Bautista Canyon, c. 1 mile above the forest service boundary 850 Comment
  SEINET13681942  Nemacladus orientalis Tina Ayers, Randy Scott 2017-3-19 1920 Riverside Chuckwalla Mountains, ca 8 miles west of Chuckwalla Valley Road on Dupont Road, roadside at edge of wilderness area 152 Comment
  RSA543855  Nemacladus pinnatifidus Steve Boyd, Orlando Mistretta 1991-5-22 6310 A Riverside Vail Lake area, base of Agua Tibia Mtn, E of Dorland Mtn, W of Kolb Crk. 549 Comment
  RSA395910  Nemacladus ramosissimus Steve Boyd 1986-4-22 1770 Riverside Temescal canyon: Terrace escarpment E side of Indian Wash, S of I-15. Comment
  RSA523536  Nemacladus ramosissimus Steve Boyd, Timothy S. Ross, L. Arnseth, Jaime Bonilla 1990-4-2 3995 Riverside Vail Lake area, lower slopes of Agua Tibia Mtn, along Hwy 79, E of USFWS Dripping Springs Guard Station. 488 Comment
  RSA692242  Nemacladus ramosissimus Scott D. White, Michael Honer 2003-5-27 9407 Riverside Gavilan Hills / Temescal Canyon: Hills and canyons ca. 1 mile north of the I-15 Freeway and 1 mile east of Lake St. exit. Collected south and / or west of unnamed peak 2349. 396 Comment
  UCR25922  Nemacladus ramosissimus John C. Roos, L. Roos 1952-4-28 5591 Riverside Box Springs Mtns. 396 Comment
  SEINET2081620  Nemacladus rubescens R. Haberle 1997-5-21 86 Riverside Joshua Tree National Monument. Cottonwood Spring Wash just above oasis, ca. .10 mi. Comment
  UCR243501  Nemacladus sigmoideus Jim Andre, T. La Doux, R. B. Kelley 2011-5-4 21071 Riverside Southern Mojave Desert, Joshua Tree National Park, Long Canyon, up side canyon approx. 400 m. west of main canyon drainage 1172 Comment
  POM305805  Nemophila menziesii Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1054 Riverside Corona-Elsinore. Comment
  UCR162413  Nemophila menziesii 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
  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
  UCD126624  Nicandra physalodes W. W. Winslow Date Unknown s.n. Riverside Ag. Ex. Serv., Riverside. Comment
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Mar 15 2014
  UCR35267  Nicotiana attenuata L. B. Ziegler 1973-8-15 517 Riverside Peninsular Range; San Jacinto Mtns., Hemet (Garner) Valley 1402 Comment
  RSA0060575  Nicotiana glauca Bob Rogers 1984-4-14 1 Riverside Collected in the San Jacinto river-bed on the North side of Highway 74, 0.5 miles past Cranston ranger station going East from Hemet towards Mountain Center. 610 Comment
  POM15016  Nicotiana obtusifolia Mary F. Spencer 1922-3-23 s.n. Riverside Palm Springs, Colorado Desert 183 Comment
  UC1922320  Nicotiana quadrivalvis Scott D. White 2005-7-6 11156 Riverside San Gorgonio Pass: Cabazon. Toeslope of San Jacinto Mtns. and adjacent alluvial fan west of San Gorgonio River and south of I-10 Freeway. Cabazon 7.5' Quad. Comment
  CAS-BOT-BC71164  Notholaena californica W. G. Wright 1890-1-1 s.n. Riverside Agua Caliente, desert slope of San Jacinto Mt. Comment
  RSA85863  Notholaena californica subsp. californica F. W. Peirson 1922-5-21 3053 Riverside about 4 miles north of San Jacinto 457 Comment
  SD137609  Nuttallanthus texanus Darin L. Banks 1995-5-3 265 Riverside Cleveland National Forest: N slope of Agua Tibia Mtn., E of the Dripping Springs Alcove Area, along lower alluvial benches of Arroyo Seco 512 Comment
  POM12792  Oenothera californica subsp. californica P. A. Munz 1922-6-23 5782 Riverside Hemet Valley, San Jacinto Mountains, [on Garner Ranch - 5784]. 1372 Comment
  UC20442  Oenothera californica subsp. californica Miss Ella Foster May 1897 Riverside Hemet Comment
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Mar 24 2011
  OBI26117  Oenothera deltoides David J. Keil 1976-12-12 11918 Riverside Along I-10, 37 mi E of Chiriaco Summit Comment
  UC665751  Oenothera deltoides subsp. deltoides Ira L. Wiggins 1941-3-26 9660 Riverside along wash Wiley Well Comment
  SEINET3092704 Image available Oenothera hookeri B. Pitzer 1986-5-24 243 Riverside Whitewater Canyon, ca. 5 mi. N of Hwy I-10 on Whitewater Canyon Road. From N edge of hatchery boundary. Whiewater 7.5' quad. Comment
  RSA0056392  Oenothera leptocarpa James R. Shevock 1972-3-5 1420 Riverside Highway 71, near Pauba Valley. 304 Comment
  RSA785415  Oenothera scapoidea Keith E. Hoffmaster 1933-4-15 467 Riverside Desert end Palms to Pines road. Comment
  RSA597060  Olea europaea D. L. Banks, Lauren Raz 1996-11-5 1157 Riverside NW Palomar Mountains; Agua Tibia Mountains; Pechanga Indian Reservation, S of San Gabriel Church; Along a newly established firebreak along a NW-SE running ridgeline, near the water tank. 402 Comment
  UC310592  Oligomeris linifolia Philip A. Munz 1926-1-31 9970 Riverside Dos Palmas Spring; Colorado Desert, Dos Palmas Spring Comment
  UCR87649  Olneya tesota A. C. Sanders 1994-6-1 14622 Riverside Sonoran (Colorado) Desert, Box Canyon in the Mecca Hills, c. 4.5 mi below Shaver's Well, 12 mi southwest of the Box Canyon Road intersection with Hwy I-10 150 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
  SEINET848397  Opuntia X occidentalis C. B. Wolf, P. C. Everett 1938-1 3355 Riverside 9 miles fsrom Temecula on raod to Aguanga; fork of Temecula Wash Comment
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Aug 11 2013
  UCR133373  Opuntia basilaris Jeffrey Ross, T. B. Salvato 1998-5-28 MOR- 327 Riverside San Bernardino Mtns., Morongo Indian Reservation, Millard Canyon, c. 3.5 miles NNW of Cabazon 915 Comment
  UCR26540  Opuntia littoralis A. C. Sanders, S. Hagopian 1981-5-20 2145 Riverside Perris-Aguanga Basin, S side of Pauba Valley, within l mi of Hwy 71 bridge over the Temecula River 367 Comment
  RSA234032  Orcuttia californica R. F. Thorne, E. Lathrop, et al. 1969-5-19 37971 Riverside Santa Rosa Plateau: Rancho Caifornia, Mesa de Colorado 625 Comment
  VVC2183  Orcuttia californica Tim Thomas, Bill Baker 1983-6-30 579 A Riverside Santa Rosa Plateau, Burro Mesa 630 Comment
  CAS-BOT-BC355580  Oreostemma alpigenum var. andersonii F. Grinnell Jr. 1908-7-1 s.n. Riverside Tahquitz Valley 2438 Comment
  JEPS11678  Orobanche californica subsp. feudgei W. L. Jepson and H. M. Hall May 17, 1901-June 1, 1901 1458 Riverside Van Deventer's Ranch. Comment
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May 1 2016
  JEPS85951  Orobanche cooperi L. R. Heckard with R. Bacigalupi 1977-3-15 4529 Riverside along Rice Rd. ca. 16 mi. n.e. Desert Center Comment
  RSA0070943  Orobanche fasciculata Darin L. Banks, Steve Boyd 1995-5-17 447 Riverside NW Palomar Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; N face of Agua Tibia Mountain, E of the Dripping Springs Alcove area W of the Dripping Springs Trail, along the W fork of upper Arroyo Seco. 597 Comment
  RSA458993  Osmorhiza brachypoda Christopher Davidson 1977-5-18 5618 Riverside Santa Ana Mts, Cleveland National Forest, Bear Springs. 1219 Comment
  RSA796510  Osmorhiza brachypoda R. F. Thorne, E. W. Lathrop 1977-5-18 49720 Riverside Santa Ana Mountains: Bear Spring [east slope of Santiago Peak] Comment
  POM353423  Oxalis albicans subsp. californica W. P. Burger 1979-4-29 62 Riverside Hidden Valley Hang Gliding Site. Near Lake Elsinore. 610 Comment
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Dec 16 2009
  UCR19404  Oxalis corniculata C. S. Papp 1963-6-10 269 Riverside Collector's backyard in Riverside [Papp residence] Comment
  CLARK-A1045-71  Oxytheca emarginata George K. Helmkamp 1978-5-20 Riverside San Jacinto Mountains dry slope just northwest of Kensworthy Forest Station; ; Idyllwild 15' Q Comment
  UC219562  Oxytheca emarginata P. A. Munz 1922-6-24 5793 Riverside Pipe Creek San Jacinto Mts., Hemet Valley 1432 Comment
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Mar 25 2011
  RSA58858  Oxytheca trilobata P. A. Munz, Percy C. Everett 1950-6-23 14908 Riverside 2 miles NW of Pipe Creek, Hemet Valley, San Jacinto Mountains. 1402 Comment
  UC421648  Oxytheca trilobata John Thomas Howell 1927-8-2 2920 Riverside near Idyllwild; Mt. San Jacinto 1676 Comment
  CAS-BOT-BC327915  Palafoxia arida Ivan Johnston 1917-4-4 1089 Riverside Mouth of Andreas Canyon 243 Comment
  CAS-BOT-BC327945  Palafoxia arida K. Bonner 1977-10-27 2570 Riverside 3 mi E of Chuckwalla Rd. Comment
  CDA14250  Palafoxia arida G. F. Hrusa, J. A. Hart 1993-4-4 10597 Riverside Cholla Garden, Joshua Tree N.M. Comment
  SEINET2053886 Image available Palafoxia arida B. Pitzer 1998-1-24 3402 Riverside N foot of Chuckwalla Mts., Eagle Mt Rd, S side of Hwy I-10, 0.8 mi S of Hwy at powerline road and wash directly S of road. 499 Comment
  POM41562  Palafoxia arida var. arida Marcus E. Jones 1924-2-27 s.n. Riverside Desert Center. Chuckwalla Valley. Comment
  SBBG89156  Panicum capillare A. C. Sanders 1986-5-20 6499 Riverside across from street from 1012 Spruce St., Riverside 304 Comment
  UCR95459  Panicum capillare D. L. Banks, E. H. Banks, J. B. Hedge 1996-6-6 1122 Riverside Agua Tibia Mtns, NW Palomar Mtns; NW foothills of Dorland Mtn; S end of Los Caballos Road, approximately 20 m north of the gate to the University of California-Emerson Oaks Reserve, across the junction with the road to the local golf course, in a vineyard 427 Comment
  JOTR35018  Panicum hirticaule subsp. hirticaule La Doux, Tasha, A. Miller, T. Vaughn, A. Johnson 2007-10-25 3116 Riverside Joshua Tree National Park. Pinto Basin, along Old Dale Road, near Mission Well Comment
  UCR33677  Panicum hirticaule subsp. hirticaule Sears 1977-10-12 S 585 Riverside Sonoran (Colorado) Desert, 20 mi. east of Desert Center, 10 mi. east of Corn Springs exit 134 Comment
  POM116050  Panicum urvilleanum Marcus E. Jones 1903-5-11 s.n. Riverside Whitewater. 305 Comment
  RSA653592  Panicum urvilleanum Stan C. Spencer 1999-7-1 DEC- 831 -1 Riverside San Jacinto Valley: sandy bottom of San Jacinto River channel, about 100 m N of Main Street, eastern edge of San Jacinto. 487 Comment
  RSA262110  Papaver californicum E. W. Lathrop 1969-5-8 7017 Riverside Main Divide Truck Trail between El Carriso and San Mateo Canyon. Cleveland National Forest. 1220 Comment
  RSA66302  Papaver californicum F. W. Peirson 1918-03 1890 Riverside Irrigated field near Indio. Comment
  UCR167817  Parietaria hespera var. californica A. C. Sanders 2005-4-21 29574 Riverside Peninsular Range, Gavilan Hills, south of Harford Springs Co. Park and Ida Leona Rd., 1.5 mi. ESE of Gavilan Peak 622 Comment
  UCR22121  Parietaria hespera var. californica Steve Boyd 1980-4-13 130 Riverside Gavilan Hills, Harford Springs County Park, NW corner of the Gavilan Plateau 610 Comment
  RSA0125268  Parietaria hespera var. hespera Duncan S. Bell, Sarah De Groot, LeRoy Gross 2016-2-17 8758 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting on the Martinez Slide to the north of Toro Canyon, approximately 4.5 air miles east northeast of the summit of Martinez Mountain. 230 Comment
  RSA448022  Parietaria hespera var. hespera E. S. Spalding 1926-2-14 15046 Riverside Palm Canon. Mesophytic habitat. Comment
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Sep 10 2011
  UC1929823  Parietaria hespera var. hespera Steve Boyd, Amber Maurice, Pesach Lubinsky, Leland Lubinsky 2003-4-17 10475 Riverside Peninsular Ranges, San Jacinto Mountains / Colorado Desert; East side of mouth of Chino Canyon, at upper edge of bajada and lower rocky slope of mountains, along road to Palm Springs Tram Station. Comment
  UCR78046  Parietaria hespera var. hespera Scott D. White 1993-4-22 1228 Riverside Peninsular Range, North Alberhill Ranch, in hills north of Walker Canyon 489 Comment
  RSA788974  Parkinsonia florida Aaron C. Sedgwick, David Fraker 2012-3-28 28 Riverside In the Mecca Hills, take Box Canyon Rd. approximately 6 miles south of Rt. 10. 323 Comment
  RSA801716  Parkinsonia florida Keith E. Hoffmaster 1933-4-15 430 Riverside Desert end Palms to Pines road. Comment
  SD43559  Parkinsonia florida Philip A. Munz 1947-4-10 11722 Riverside 4.0 miles northwest of Desert Center, on Aqueduct Road. Comment
  RSA652881  Paspalum dilatatum John Wallace 1991-5-8 16 Riverside Colorado River; Approximately 3 miles south of Lost Lake Resort. Comment
  UCR113937  Paspalum distichum Mitch Provance 2000-6-24 2066 Riverside Riverside, Santa Ana River Wash, between the Market Street bridge and the 60 Fwy 244 Comment
  UCR22188  Paspalum distichum E. W. Lathrop 1959-5-17 4570 Riverside Peninsular Range; Santa Ana Mtns., Santa Rosa Plateau; 14 miles west of Murrieta Comment
  JOTR31803  Pectis papposa var. papposa La Doux, Tasha, Bill Truesdell 2007-11-9 2511 Riverside Joshua Tree National Park. Pinto Basin, where Fried Liver Wash crosses Pinto Basin Road; between Hexie and Pinto Mountains (Stop 1) 532 Comment
  RSA608161  Pectis papposa var. papposa Steve Boyd, Valerie Soza, Tasha La Doux 1997-10-13 10049 Riverside Sonoran (Colorado) Desert Chuckwalla Mtns, NW base of the range, south of Eagle Mine Rd exit on Hwy I-10. 426 Comment
  POM368837  Pectocarya heterocarpa Bruce M. Crawford 1932-2-22 s.n. Riverside Near Santa Ana River Comment
  RSA0124035  Pectocarya heterocarpa Duncan S. Bell, LeRoy Gross 2016-3-10 8880 Riverside Orocopia Mountains; Orocopia Mountains Wilderness area; northwestern section of the range; collecting approximately 1.75 air miles northwest of the summit area. 938 Comment
  SD236234  Pectocarya linearis John F. Green 2006-4-18 Riverside NE of Murrieta, just S of Los Alamos Road (Clinton Keath Rd) on E and W sides of Liberty Road border between City of Murrietta and unincorporated French Valley (Murrieta 7.5'Q) 415 Comment
  UC72059  Pectocarya linearis subsp. ferocula Miss M. A. King 1893-1 Riverside Menifee 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
  RSA709972  Pectocarya platycarpa Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4590 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  RSA0128200  Pectocarya platycarpa G. Rink 2013-3-20 11894 Riverside Above twelve miles west of Blythe, at the site of the proposed Quartzite solar power plant. 105 Comment
  JOTR33972  Pectocarya recurvata La Doux, Tasha, M. Harding 2010-4-7 2860 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View with cobble benches above wash Comment
  SD70779  Pectocarya recurvata D. B. Dunn, Shogo, Schroeder, Bruskin and Folsom 1948-3-13 3723 Riverside Indio Hills, Colorado Desert, near Pushawalla. Comment
  SBBG118580  Pectocarya setosa L. Gross with V. Soza 2003-5-8 826 Riverside N end of Rouse Ridge, S of the San Jacinto River, N of Rouse Hill Rd; T5S R2E S19, Center 777 Comment
  LA209456  Pedicularis densiflora L. Street; M. Munger, G. Williams 1919-3-25 2327 Riverside Beaumont 609 Comment
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Mar 20 2014
  RSA523493  Pedicularis densiflora Steve D. Boyd, Tim S. Ross, L. Arnseth 1990-3-30 3953 Riverside Vail Lake area, saddle at N base of Big Oak Mtn, S of Black Hills. 732 Comment
  UC76051  Pedicularis densiflora M. F. Gilman 1904-1 40 Riverside Banning Comment
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Mar 13 2011
  CAS-BOT-BC69223  Pellaea andromedifolia Winfield 1975-5-4 2361 Riverside Highway 74 mile marker 52 22 914 Comment
  UCSB30934  Pellaea andromedifolia Parker, V. 1974-4-5 Riverside Hemet city limits, E side of Hwy 74 365 Comment
  SD138001  Pellaea andromedifolia var. andromedifolia Darin L. Banks, Steve Boyd 1995-3-30 116 Riverside Cleveland National Forest, Agua Tibia Wilderness Area; north slope AguaTibia Mtn., west of Dripping Springs Alcove, east of Woodchuck Trail Comment
  CAS-BOT-BC71402  Pellaea mucronata Ivan Johnston 1917-4-4 1069 Riverside Palm Canyon 762 Comment
  HSC35461  Pellaea mucronata J. D. Ackerman, A. M. Montalvo 1975-6-26 525 Riverside Hwy. 74 between San Juan Capistrano and Lake Elsinor, above SanJuan Campground, Cleveland National Forest 610 Comment
  SEINET3124873 Image available Pellaea mucronata P. J. Leary 1976-2-12 1439 Riverside At Barker Dam, Joshua Tree National Monument. 1280 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
  RSA320391  Pellaea mucronata subsp. californica W. Wisura, B. Busenberg 1984-10-19 4027 Riverside Santa Rosa Mountains: along top of ridge on N side of Toro Peak Comment
  IRVC3156  Pellaea mucronata var. californica R. H. Whittaker, W. A. Niering 1963-5-30 SJ 89 Riverside Santa Rosa Road. Peninsular Ranges, Santa Rosa Mountains 1585 Comment
  RSA771629  Pellaea mucronata var. mucronata Orlando Mistretta, Duncan Bell, Joy England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 4995 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm)., between N34.00456, W116.67238 and N33.99629 and W116.66010 750 Comment
  CHSC1849  Penstemon antirrhinoides E. Thomas 1940-3-10 Riverside San Jacinto Foothills. Comment
  JEPS11253  Penstemon centranthifolius C. V. Meyer June 1927 272 Riverside Saunder's Meadow San Jacinto Mts., Saunder's Meadow Comment
  UC1043379  Penstemon centranthifolius Richard M. Straw 1953-6-25 488 Riverside Santa Rosa Mountain Road , Santa Rosa Mountain Road (from Palms to Pines Hwy) 1676 Comment
  UCR122741  Penstemon centranthifolius George K. Helmkamp, E. A. Helmkamp 1998-4-24 3380 Riverside Santa Rosa Mountains, Pinyon Pines along Calif. Hwy 74 between the San Jacinto and Santa Rosa Mountains 1296 Comment
  RSA0030778  Penstemon clevelandii subsp. connatus I. M. Johnston 1917-4-4 s.n. Riverside Andreas Canyon 274 Comment
  RSA79844  Penstemon pseudospectabilis Philip A. Munz, D. D. Keck 1922-4-9 4909 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 457 Comment
  UCR128312  Penstemon rostriflorus Scott D. White, Teresa Salvato, Lia DeMarco, Jessica Christian 2001-6-30 8630 B Riverside San Jacinto Mtns, Idyllwild area; 'Strawberry Fuelbreak' between Inspiration Point and Strawberry Creek. I.e., southwest terminus of Double View Dr. west to creek 1646 Comment
  UCR199572  Penstemon spectabilis Scott D. White, Angelia Carey 2004-7-2 10592 Riverside San Jacinto Mountain foothills, Soboba Indian Reservation, Poppet Creek Canyon 610 Comment
  VVC492  Penstemon spectabilis A. C. Sanders, J. Mac 1997-5-4 20676 Riverside San Jacinto Mountains, N side of the range, 0.2 mi. N of Twin Pines Ranch Road on the dirt road to Brown Creek and Cabazon. 1098 Comment
  NY661169  Penstemon spectabilis var. spectabilis W. L. Jepson 1928-4-19 12436 Riverside Temecula 310.6 Comment
  RSA0070719  Pentagramma triangularis Scott D. White 2001-4-19 8375 Riverside Perris Basin: Perris/Sun City area. Just east of Goetz Rd. and south of Ethanac Rd., ca. 1.5 - 2 mi west of Interstate 215. 442 Comment
  SEINET9628509 Image available Pentagramma triangularis C. L. Hitchcock, C. V. Muhlick 1964-3-17 23110 Riverside Along steep bank, 10 mi N of Pala, along road to Elsinore. Comment
  UCR239222  Peritoma arborea Thomas R. Stoughton, E. Gardner, D. Bell 2010-11-12 716 Riverside Transverse Ranges; San Bernardino Mountains, Pacific Crest Trail, west of White Water Canyon, north of the junction of Hwy I-10 and Rte 111 732 Comment
  CAS-BOT-BC77474  Peritoma arborea var. angustata Aven Nelson 1930-3-1 11168 a Riverside No. of Palm Springs Comment
  CAS-BOT-BC77526  Peritoma arborea var. arborea Philip A. Munz 1940-3-24 15713 Riverside 2 miles north of Cottonwood Springs, Eagle Mts. 914 Comment
  POM122891  Perityle emoryi Marcus E. Jones 1926-2-15 s.n. Riverside Near Indio. Comment
  RSA0117921  Perityle emoryi Sarah J. J. De Groot, Cheryl Sevilla 2016-3-16 7651 Riverside Mecca Hills: Side canyon along Painted Canyon Road. northeast of Mecca, northwest of Box Canyon. 170 Comment
  UC306392  Perityle emoryi S. B. Parish 1919-3-27 19196 Riverside Palm Canyon Colorado Desert Comment
  UCR242291  Perityle emoryi A. C. Sanders, T. B. Salvato 2012-10-12 40418 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, along Chuckwalla Valley Rd., 0.35 mi. west of I-10 junction 114 Comment
  UCR256337  Perityle emoryi Duncan S. Bell 2012-2-12 3114 Riverside Mojave Desert, Mecca Hills, c. 1.25 air miles north of Box Canyon Road, and c. 4 air miles southwest of Shavers Well 256 Comment
  UCR263647  Perityle emoryi Aaron C. Sedgwick, Brett Griffin 2012-3-28 027 Riverside Sonoran (Colorado) Desert, Mecca Hills, Box Canyon Road. c. 6 miles south of Hwy I-10 323 Comment
  UCR52231  Perityle emoryi Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2153 Riverside Sonoran (Colorado) Desert, N end of the Palen Mtns, 2 miles west of Palen Pass 300 Comment
  CAS-BOT-BC413483  Persicaria amphibia I. M. Johnston 1918-5-30 2027 Riverside Lee Lake, Temescal Canon [Canyon] 335 Comment
  HSC47320  Petalonyx thurberi R. W. Spjut, Judy Adams 1978-11-22 5237 Riverside Colorado Desert, N of N Palm Springs along Indian Ave. 0 Comment
  RSA445163  Petalonyx thurberi M. B. Dunkle 1933-3-4 3062 Riverside Painted Canyon, Colorado Desert. 30 Comment
  UC535038  Petalonyx thurberi subsp. thurberi Victor Duran 1933-7-3 3500 Riverside Coachella Valley at Deep Canyon; Coachella Valley 243 Comment
  UC604863  Petalonyx thurberi subsp. thurberi Roxana S. Ferris and Ruth P. Rossbach 1938-5-16 9568 Riverside 2 mi. up Painted Canyon; Mecca Hills, Painted Canyon Comment
  UCR84623  Petunia axillaris Scott D. White, S. Ogg 1994-4-21 1995 Riverside San Bernardino Mtns, Millard Canyon, near stream crossing of Forest Service Road 2S05, c. 4 miles south of Bear Wallow Spring 917 Comment
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Apr 5 2016
  CAS-BOT-BC326770  Peucephyllum schottii Peter H. Raven 1958-3-15 11831 Riverside Painted Canyon near Mecca Comment
  SEINET2054222 Image available Peucephyllum schottii Jenifer Williams 1965-3-27 Riverside Colorado Desert, Corrizo Canyon, S of Palm Desert. 152 Comment
  UC572551  Peucephyllum schottii H. S. Yates 1937-3-23 6434 Riverside Painted Canyon Thermal Quad. 121 Comment
  UC831588  Peucephyllum schottii E. C. Jaeger 1922-3-18 1028 Riverside near Mecca; Painted Canyon Comment
  UCR60642  Peucephyllum schottii C. B. Wolf 1932-4-26 02980 Riverside Sonoran (Colorado) Desert, 8 mi east of Mecca, on Blythe Road 183 Comment
  POM12033  Phacelia ambigua Mary F. Spencer 1920-3-14 1581 Riverside Desert sand, Colorado Desert. -60 Comment
  POM14022  Phacelia ambigua P. A. Munz, D. D. Keck 1922-4-9 4841 Riverside Vicinity of Corn Springs, Chuckwalla Mountains, Colorado Desert. 427 Comment
  RSA657245  Phacelia ambigua J. Mark Porter 2001-4-2 12344 Riverside Coachella Valley, Desert Hot Springs, S of Big Morongo Wash, along Indian Ave, just S of the jtn. with Pierson Avenue. 396 Comment
  RSA0003811  Phacelia californica var. jacintensis E. C. Jaeger 1922-7-1 1045 Riverside Tahquitz Valley, San Jacinto Mts. Comment
  SJSU6024  Phacelia campanularia R. C. McGehee 1970-4-28 229 Riverside 0.5 mi S of Cottonwood Pass, Joshua Tree National Monument Comment
  HSC13693  Phacelia campanularia subsp. campanularia J. J. Wagoner 1965-4-12 28 Riverside 8 mi. NE of Palm Springs in Whitewater Canyon Comment
  UC1184078  Phacelia campanularia subsp. campanularia Peter M. Ray 1949-3-12 1352 Riverside 2 mi w Whitewater; north side of Coachella Valley 457 Comment
  UC1087288  Phacelia cicutaria var. hispida E. K. Balls and P. C. Everett 1958-3-19 22873 Riverside hills 1 mi e Hwy. 17 to Elsinore 198 Comment
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Mar 1 2014
  UCR251941  Phacelia cicutaria var. hispida Harun Bektas 2011-4-26 01 Riverside Riverside, Box Springs Mountain Park; 7 miles above Moreno Valley via Pigeon Pass Rd. 793 Comment
  UCR85569  Phacelia ciliata Julie A. Greene 1993-4-17 1202 Riverside San Jacinto Valley, San Jacinto Wildlife Area. west of San Jacinto River, west of Davis Rd 439 Comment
  RSA0107898  Phacelia crenulata Duncan S. Bell, Thomas Stoughton 2010-3-19 570 Riverside Central section of the Arica Mountains; within the Palen/McCoy Wilderness area; approximately 2.25 air miles west of Priest Well. 439 Comment
  JOTR28947  Phacelia crenulata var. ambigua La Doux, Tasha 2005-3-30 1183 Riverside Joshua Tree National Park. Next to Fried Liver Wash 544 Comment
  UC668397  Phacelia cryptantha Annie M. Alexander and Louise Kellogg 1941-4-24 2078 Riverside Dry Morongo Morongo Valley Gorge 640 Comment
  RSA182345  Phacelia distans J. D. Olmsted 1962-5-2 3440 Riverside Flat by saddle just N of highest part of Box Spring Mountains 762 Comment
  RSA444326  Phacelia distans Walter Wisura 1988-3-1 4194 Riverside 2.5 mi fr. I 10 along Box Canyon Rd. toward Mecca Comment
  RSA777678  Phacelia distans Thomas Stoughton, Stephanie Rockwood, Christi Gabriel 2011-4-6 982 Riverside Iron Mountains, on southwest side of mountains in drainage on either side of the road 419 Comment
  RSA550042  Phacelia minor Walter Wisura, A. King, L. Newcomb 1992-4-10 4665 Riverside Colorado Desert, Morongo Valley, Mission Creek Ranch W of Highway 62 below Morongo Valley. Comment
  SEINET3091802 Image available Phacelia minor C. Francis Shutts 1949-3-18 61 Riverside Cottonwood Pass, Joshua Tree Nat'l Mon. Little San Bernardino Mt. Range. Comment
  UCR84879  Phacelia minor A. C. Sanders, K. C. Rose, D. Woodard 1995-3-22 16201 Riverside Sonoran (Colorado) Desert, mouth of San Gorgonio Pass, alluvial fan just east of the mouth of Whitewater Canyon between Windy Point & Hwy I-10, Coachella Valley 370 Comment
  UCR90185  Phacelia minutiflora A. C. Sanders, E. J. Lawlor 1992-4-4 12149 Riverside Sonoran (Colorado) Desert, McCoy Mountains, within 0.5 mile of McCoy Spring 244 Comment
  JEPS1063  Phacelia pedicellata Marjorie D. Clary 1932-4-12 1612 Riverside 8 mi w Coachella; Colorado Desert, Devil's Canyon 182 Comment
  RSA428158  Phacelia pedicellata Robert Gustafson 1983-3-27 2492 Riverside Near mouth of fairly steep-walled canyon southwest of Lake Cahuilla Comment
  UC495208  Phacelia pedicellata Philip A. Munz 1932-3-14 12012 Riverside Magnesia Springs Canyon Coachella Valley 91 Comment
  UCR160975  Phacelia ramosissima Narca A. Moore-Craig 1984-4-5 s.n. Riverside San Jacinto Wildlife Area, c. 2 mi. north of Lakeview, c. 0.5 mi. east of Davis Rd. at headquarters 506 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
  CHSC61260  Phalaris minor J. Lund 1980-4-2 Riverside Across the freeway from Valarie Jeans on Rd. W86 on north west side of Salton Sea. Comment
  RSA0034096  Phalaris minor Duncan S. Bell 2013-1-30 4454 Riverside The Mecca Hills; collecting beside the Coachella Canal and the powerlines at the base of the mountains in narrow desiccating depressions where winter rains had collected. 23 Comment
  JOTR35431B  Phoenix dactylifera Kain, Katie, Angela Sowa 2012-10-16 s.n. Riverside Joshua Tree National Park. southwest Eagle Mountains; steep rocky drainage approx. 1.5mi east of Cottonwood Canyon and 1.5mi north of park boundary 815 Comment
  POM3518  Pholistoma auritum Robinson, Crocker 1916-3-29 s.n. Riverside Santa Ana Mountains, canyons near Murietta. Comment
  HSC99177  Phoradendron californicum Paul J. CaraDonna 2009-3-17 131 Riverside Jumbo Rock Campground, Joshua Tree National Park. Comment
  RSA420775  Phoradendron californicum Gale Sphon 1955-5-15 s.n. Riverside Dead Indian Canyon near Palm Springs. Comment
  RSA601648  Phoradendron californicum Louis C. Wheeler 1956-2-25 7176 Riverside Deep Canyon, south of Palm Desert. Comment
  SFV20414  Phoradendron californicum J. R. Pucci 2004-5-9 52 Riverside San Jacinto Mountains Chino Canyon, off Tramway Road on abandoned road. 590 Comment
  UC848868  Phoradendron californicum I. W. Clokey 1935-4-17 6575 Riverside Cottonwood Springs Comment
  UCR48559  Phoradendron californicum J. Glazner 1985-4-5 s.n. Riverside Sonoran (Colorado) Desert, Corn Springs. 5 mi. SSE of Desert Center 274 Comment
  UCSB1316  Phoradendron californicum Gray, Caroline 1956-4-14 Riverside Northern Desert slope 2 mi. opposite Southern entranceof Joshua Tree National Monument Comment
  UCSB10654  Phoradendron leucarpum subsp. macrophyllum Gill, Robert 1960-3-23 Riverside Snow Canyon, near end of road 563 Comment
  POM2144  Phoradendron macrophyllum I. M. Johnston 1917-12-1 1810 Riverside Santa Ana River, NW of Corona. 183 Comment
  JOTR36413  Phoradendron serotinum subsp. tomentosum La Doux, Tasha, K. Callahan, M. Harding, M. Levandowski 2013-5-9 3360 Riverside Joshua Tree National Park. Little San Bernardino Mtns; Stubbe Springs, near guzzler and spring on densely vegetated slope (STOP1) 1371 Comment
  RSA675709  Physalis crassifolia Scott D. White 2000-10-24 8140 Riverside South of Hemet: 'Gibbel Flat' in the Santa Rosa Hills 610 Comment
  UC56825  Physalis crassifolia H. M. Hall May 1901 1848 Riverside borders of Colorado Desert (e base of San Jacinto Mountains); San Jacinto Mountains Comment
  UCR123818  Physalis crassifolia Steven R. Hill 2001-5-3 33671 Riverside San Jacinto Mtns., NE-facing slopes of Mt. San Jacinto, Tramway Road in vicinity of road summit, Chino Canyon, c. 3.8 mi west of Calif. Hwy 111, Palm Springs. Palm Springs Aerial Tramway property, around and below parking area 793 Comment
  CDA7185  Phytolacca americana A. C. Sanders, T. B. Salvato, Helen Kennedy, A. Salzman 2006-11-9 33220 Riverside San Bernardino Valley; Riverside, UCR Botanical Garden, subtropical fruit orchard on the north side of the garden. Comment
  UC1535405  Phytolacca americana Don Domenigoni 1986-4-21 Riverside Hemet, at the Young property Hemet Comment
  CAS-BOT-BC78598  Pinus flexilis Arthur Menzies; Bob Murray 1957-8-21 s.n. Riverside Marion Mt., San Jacinto Mts. Comment
  SFV268  Pinus monophylla M. L. Vincent, R. H. Swade 1963-10-19 440 Riverside Roadside on California state Highway 74, near the road to Pinyon Flat. 1220 Comment
  LA6145  Pinus ponderosa A. H. Lange; 1951-5-27 sn Riverside San Jacinto Mountains, Tauquitz [Tahquitz] Peak Comment
  CAS-BOT-BC79089  Pinus quadrifolia Victor Duran 1933-7-2 3495 Riverside near Santa Rosa, Santa Rosa Mountains 1676 Comment
  POM12978  Pinus quadrifolia Philip A. Munz, I. M. Johnston 1922-5-20 5492 Riverside Head of Hemet Valley, San Jacinto Mts 1524 Comment
  RSA595275  Piptatherum miliaceum D. L. Banks, Victor Steinmann 1996-4-20 896 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
  UCR234254  Pistacia atlantica A. C. Sanders, T. B. Salvato 2012-4-27 40097 Riverside Peninsular Range; Santa Ana Mtns. Region, Temescal Canyon, along Temescal Canyon Rd. between Glen Ivy/I-15 and Indian Truck Trail, c. 500 m SE of El Hermano Rd. 325 Comment
  UCR171211  Plagiobothrys acanthocarpus R. E. Riefner Jr. 2006-4-8 06- 106 Riverside Peninsular Range, Lake Elsinore (city), back basin of lake Elsinore west of Pete Lehr Dr. and south of levee near Diamond Stadium 419 Comment
  SEINET2445423  Plagiobothrys arizonicus Daphne K. Christopher, Hannah Stevens 2003-4-7 114 Riverside Santa Rosa Plateau Nature Conservancy Preserve. Tenaja Truck Road. 610 Comment
  OBI53725  Plagiobothrys canescens Bill Wagner 1988-3-9 s.n. Riverside At Benton Rd and San Diego aqueduct, 1/2 mi E of Winchester Rd, NE of Murrieta 411 Comment
  UC1347182  Plagiobothrys canescens Alice Eastwood and John Thomas Howell 1937-4-24 3917 Riverside above Elsinore; Summit of Santa Ana Mts. Comment
  UC64418  Plagiobothrys collinus var. californicus H. M. Hall 1897-3-30 412 Riverside Winchester Comment
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Mar 20 2011
  UCR6298  Plagiobothrys collinus var. californicus Helen Leach 1967-3-2 670302- 3 Riverside Pedley 229 Comment
  POM229457  Plagiobothrys collinus var. fulvescens P. A. Munz 1937-5-30 15089 Riverside North of Vandeventer Flat, Santa Rosa Mountain 1676 Comment
  UCR112995  Plagiobothrys collinus var. fulvescens Mitch Provance, Seychelle Provance, Juanita Provance, Claude Provance 1999-4-4 1721 Riverside Riverside, 'Whitegates Hills', c. 0.125 miles north of Overlook Pkwy. 381 Comment
  UCR246593  Plagiobothrys collinus var. fulvescens A. C. Sanders 2012-3-22 39986 Riverside Peninsular Range; Temescal Valley, foot of Santa Ana Mtns., SE of intersection of Glen Eden Rd. and I-15 Frontage Rd., south of Corona (Lee) Lake 378 Comment
  UC219101  Plagiobothrys leptocladus P. A. Munz 1922-4-29 5068 Riverside 1/2 mi s Lake Elsinore 381 Comment
  SD185172  Plagiobothrys nothofulvus Jeri Hirshberg 1989-3-15 Riverside Santa Rosa Plateau, wouth of Murrieta; small mesa southwest of Mesa de Burro. 579 Comment
  POM13006  Plagiobothrys tenellus Munz, I. M. Johnston 1922-5-19 5425 Riverside Keen Camp, San Jacinto Mts. 1494 Comment
  UCSB10521  Plagiobothrys tenellus Wedberg, H. 1957-3-22 Riverside Hwy. 71, near Alberhill Comment
  RSA0028762  Plagiobothrys tenellus J. C. Roos 1952-4-29 5594 Riverside Reche Canyon 457 Comment
  SBBG54322  Plagiobothrys undulatus C. Davidson 1977-5-25 5641 Riverside Mesa de Burro, Santa Rosa Plateau 701 Comment
  UCR15892  Plagiobothrys undulatus Frank C. Vasek, G. K. Helmkamp 1979-4-27 s.n. Riverside Santa Ana Mtns., Mesa de Colorado, drying vernal pool along Clinton Keith Road 457 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
  RSA769650  Plantago erecta Duncan S. Bell, Naomi Fraga 2010-4-22 851 Riverside San Bernardino National Forest: Rouse Ridge, approximately 1.2 air miles southeast of junction of Highway 74 and forest service road 5S15. 771 Comment
  UCR1612  Plantago major R. G. Barber 1962-5-3 57 Riverside City of Riverside, near drainage ditch on UCR grounds at 4808 Chicago Avenue. Comment
  UCR201605  Plantago major Justin M. Wood 2008-11-17 226 Riverside Southwest Perris Basin, Temecula - Murrieta Creek, downstream of 1st Street bridge 305 Comment
  JEPS7190  Plantago ovata S. B. Parish 1912-10-23 8342 Riverside Mecca Salton Basin -57 Comment
  JEPS85906  Plantago ovata Peter M. Ray 1949-3-6 1326 Riverside near 1000 Palms; Coachella Valley, Willis Palms Comment
  SEINET4568275 Image available Plantago ovata Sarah J. De Groot, Leland Lubinsky, Naomi Fraga, Lisa Rojas 2005-2-10 4594 Riverside Along Palen Pass Road, near Palen Pass, between Granite and Palen Mountains. Bluff of sharp light-colored volcanic rock. 402 Comment
  JOTR33991  Plantago ovata var. fastigiata La Doux, Tasha, M. Harding 2010-4-7 2879 Riverside Joshua Tree National Park. Southeast Little San Bernardino Mountains, north of Fan Hill; large, open southwest flowing fan below Key's View with cobble benches above wash Comment
  RSA0069667  Plantago ovata var. fastigiata Cheryl Sevilla, Sarah J. De Groot 2015-2-18 11 Riverside Transverse Ranges; San Bernardino Mountains region: San Gorgornio Wilderness Area; on the plain to the east of Mission Creek; 0.4 miles northwest of the Stone House. 783 Comment
  SD137692  Plantago patagonica Darin L. Banks, Steve Boyd 1995-5-3 293 Riverside Cleveland National Forest, Agua Tibia Wilderness Area. North slope of Agua Tibia Mountain, east of the Dripping Springs Alcove Area, along the lower alluvial benches of Arroyo Seco. 512 Comment
  SEINET1909535  Plantago patagonica S. J. Myers 2001-1 Riverside San Jacinto Mtns.: Bautista Canyon (Blackburn Canyon 7.5'). Sandy bank along dirt road across from conservation camp. 853 Comment
  SEINET10476457  Platanus racemosa James S. Miller 1992-5-8 Miller 7463 Riverside 5.5 mi E of the W boundary of San Bernadino National Forest on California route 74. 950 Comment
  UCR91742  Platanus racemosa A. C. Sanders, J. Goetzen 1996-5-1 18140 Riverside San Bernardino Mtns., Morongo Indian Reservation, along dirt road in Hathaway Creek Canyon, north of Banning 915 Comment
  CAS-BOT-BC91881  Platystemon californicus Greata 1906-5-1 477 Riverside Redlands. Comment
  CAS-BOT-BC91884  Platystemon californicus C. L. Hitchcock; C. V. Muhlick 1962-3-16 22163 Riverside 5 miles southeast of Elsinore. Comment
  RSA675047  Platystemon californicus Scott D. White 2001-5-1 8439 Riverside Near Sun City: Quail Valley: Valleys and slopes east of Canyon Lake and west of Goetz Road. 442 Comment
  UCR4098  Plectritis ciliosa subsp. insignis Carole Sims 1965-5-1 s.n. Riverside San Jacinto Mtns., Tahquitz Meadows [Camp Tahquitz Meadows, north of Hwy 74 at site of Keen Camp, east of Mtn. Center], about 25 yards northeast from place stream crosses under road 1372 Comment
  UCR80511  Plectritis ciliosa subsp. insignis D. E. Bramlet 1991-4-30 2095 Riverside Shipley Reserve, foothills c. 2.4 km south of Crown Valley & 2 km east of Rawson Canyon, in the N foothills of Black Mtn, c. 830 m SE of knoll 761 m 760 Comment
  RSA0021527  Pleuraphis rigida Jim Andre 2013-3-27 24809 Riverside Rice Valley; east side of Arica Mountains, along Rice-Midland Rd, 2.2 mi. south of Rice (Hwy 62). 242 Comment
  RSA778415  Pleuraphis rigida Stephanie Rockwood, Christi Gabriel 2011-10-4 52 Riverside Red Cloud Wash Road exit from I10. Fellow Red Cloud Road approximately 6.4 miles. Near campground with car remnants. Chuckwalla Bench ACEC. 630 Comment
  RSA0040098  Pleurocoronis pluriseta Duncan S. Bell, Deidre Conocchioli 2014-3-18 6254 Riverside Orocopia Mountains; southern/central section of range; approximately 1.25 air miles northwest of Gucci Spring. 511 Comment
  UCR51951  Pleurocoronis pluriseta Steve Boyd, S. Meury, R. Noyes, L. Arnseth, D. Nordin, T. S. Ross 1988-3-10 2216 Riverside Sonoran (Colorado) Desert, NW end McCoy Mtns, NW of Blackjack Mine 400 Comment
  POM56713  Pluchea sericea C. F. Baker 1903-4-4 4148 Riverside Elsinore. Comment
  SD84905  Pluchea sericea Nancy Ryan Zabriskie, W. Zabriskie 1972-3-28 484 Riverside North canyon, Andreas Canyon drainage, east slope San Jacinto Mountain 609 Comment
  UCR80005  Pluchea sericea Scott D. White 1992-9-2 768 Riverside San Jacinto Valley, Vicinity of Gilman Hot Spirngs, north side of San Jacinto River, and a thin strip tending north of the river & west of the Hot Springs. 451 Comment
  LA12571  Poa nevadensis F. M. Reed; 1905-4-2 694 Riverside Box Springs Mountains 548 Comment
  CAS-BOT-BC247398  Poa pratensis Cecil Hart 1922-5-21 7 Riverside San Jacinto Mt. Comment
  RSA741223  Poa pratensis Scott D. White, Justin M. Wood 2008-5-15 12011 Riverside Johnson Meadow. 1415 Comment
  UCR27283  Poa secunda E. W. Lathrop 1966-4-27 6207 Riverside Santa Ana Mtns., Main Divide Truck Trail between El Cariso and San Mateo Canyon, Cleveland National Forest. 1220 Comment
  RSA0037399  Poaceae Robert F. Thorne 1966-10-15 41807 Riverside Dead Indian Canyon: Near Palm Desert at foot of Palms to Pines Highway Comment
  RSA0105849  Polycarpon tetraphyllum Alan Romspert 2000-7-26 s.n. Riverside 60 Fwy Bridge and Santa Ana Riverbed transect. Comment
  UCR280984  Polycarpon tetraphyllum Mitch Provance, Jeremiah George, Matt K. Beyers, John Hazlett 2017-5-23 517- 29 Riverside Temescal Valley, Mayhew Wash, N side of Temescal Canyon Rd., vicinity of I-15 320 Comment
  UCR270760  Polygala cornuta subsp. fishiae T. B. Salvato, Arlee M. Montalvo, Rari E. Marcs 2016-4-26 8366 Riverside Santa Ana Mountains, unnamed west-east trending canyon south of Mabey Canyon and north of Tin Mine Canyon, c. 0.6 mi west of the end of West Foothill Parkway 424 Comment
  RSA180378  Polygala cornuta var. fishiae E. W. Lathrop 1960-6-7 4890 Riverside 14 miles west of Murrieta, Redonda Mesa. Comment
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Apr 28 2011
  UCR189814  Polygala cornuta var. fishiae Theresa Johnson 2007-5-2 332 Riverside Peninsular Range, Santa Ana Mountains, Santa Rosa Plateau. Near Mesa de Burro Comment
  RSA597078  Polygonum arenastrum D. L. Banks, Elizabeth Hedge Banks, John B. Hedge 1996-6-6 1116 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; At the junction of Los Caballos Road and Hwy. 378 Comment
  RSA575829  Polygonum lapathifolium Steve Boyd 1981-5-15 s.n. Riverside Gavilan Hills region, Temescal Canyon at the confluence of 'Estelle Creek' and Temescal Creek, just northwest of the entrenched meander of Temescal Creek at the western Base of Estelle Mountain. 317 Comment
  RSA29893  Polygonum punctatum Louis C. Wheeler 1932-9-4 1320 Riverside Santa Ana River at Chino Creek. 183 Comment
  UCR40195  Polygonum punctatum Steve Boyd 1985-7-23 1014 Riverside Peninsular Range, De Luz Road, 8 mi west of Rancho California. Side canyon of Sandia Creek 305 Comment
  UCSB62522  Polypodium californicum Kiefer, Lawrence 1963-11-3 Riverside Reche Canyon (S of Loma Linda), W side, N-running ravine just inside county line. 426 Comment
  CAS-BOT-BC232947  Polypogon australis H. M. Hall 1900-5-29 1384 Riverside Vicinity of Winchester, near Sage 457 Comment
  UCSB26907  Polystichum munitum Wilken, Dieter 1969-6-30 Riverside Riverside County Road R1 at Dark Canyon, 7 miles N of Idyllwild, San Jacinto Mtns. Comment
  UC1134775  Populus fremontii subsp. fremontii R. St. John 1930-2-14 95 Riverside Lewis Valley; San Jacinto Quad., Lewis Valley Comment
  UC846012  Populus fremontii subsp. fremontii Ira L. Wiggins 1937-2-19 8573 Riverside roadside 2.5 mi n Ripley Comment
  UCR270196  Populus nigra A. C. Sanders, Jeanne Marie Acceturo & participants in Jepson Workshop 2016-4-3 42417 Riverside Peninsular Range, UC Emerson Oaks Reserve, c. 8 miles southeast of Temecula, south of Hwy 79 at E end of Pauba Valley, south end of Los Caballos Road, c. 0.3 km NW (161 deg. ) of water tank 473 Comment
  UCR68618  Porophyllum gracile Steve Boyd, D. E. Bramlet 1990-4-29 4485 Riverside Peninsular Range, Lake Skinner County Park, S flank of Bachelor Mtn. Comment
  CAS-BOT-BC452156  Potamogeton diversifolius P. A. Munz 1922-9-6 6380 Riverside Hidden Lake, San Jacinto Mts 2438 Comment
  UCR18542  Potentilla glandulosa subsp. reflexa A. C. Sanders 1978-6-11 874 Riverside San Jacinto Mtns., James Reserve, above Lake Fulmor 1646 Comment
  UCR201672  Potentilla gracilis var. fastigiata Scott D. White, Justin M. Wood 2008-6-19 12280 Riverside San Jacinto Mountains, meadows at Baldy Mountain 1677 Comment
  CAS-BOT-BC356220  Prenanthella exigua Annie M. Alexander; Louise Kellogg 1941-5-23 2221 Riverside Colorado Desert. 3.5 miles northeast of Cottonwood Spring, Eagle Mountains 1066 Comment
  UCR63905  Proboscidea althaeifolia G. R. Ballmer 1990-8-21 s.n. Riverside Sonoran (Colorado) Desert, Palo Verde Valley, 5 mi. west of Hwy 78, on Bradshaw Trail Comment
  CSUSB1139  Prosopis glandulosa K. A. Lamb 1968-4-21 680421 2 Riverside 1 mile east of Mecca, Highway 195. Roadside, Alkali Sink. Comment
  RSA0123110  Prosopis glandulosa var. torreyana Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-23 9017 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; Agua Alta Canyon, approximately 3.5 air miles southeast of the summit of Martinez Mountain. 653 Comment
  RSA86993  Prosopis glandulosa var. torreyana F. W. Peirson 1919-4-12 4429 Riverside Palm Canyon, near Palm springs. Comment
  SBBG70929  Prunus emarginata R. Hoffmann 1929-9-6 Riverside Tahquitz Valley 2438 Comment
  CAS-BOT-BC158293  Prunus fasciculata var. fasciculata F. A. M. 1936-3-20 15509 Riverside Morengo Valley Comment
  CAS-BOT-BC158294  Prunus fasciculata var. fasciculata Peter H. Raven 1958-5-5 12889 Riverside Jumbo Rocks Camp Ground, Joshua Tree National Monument Comment
  UCR132746  Prunus fremontii Scott D. White 1993-2-5 1047 Riverside Sonoran (Colorado) Desert/San Jacinto Mtns., Palm Springs, Tahquitz debris basin at base of Tahquitz Canyon, off Sunnydunes Drive 183 Comment
  CAS-BOT-BC154440  Prunus ilicifolia D. Bramlet 1999-4-10 2734 Riverside Bachelor Mountain. North facing slope 152 m northwest of the peak 726 Comment
  RSA220993  Prunus ilicifolia E. W. Lathrop 1966-4-18 6189 Riverside 4 miles west of Corona between Tin Mine Canyon and Santiago Peak, Skyline Drive. Comment
  OBI45158  Psathyrotes ramosissima A. Liston, T. S. Elias, O. R. Dorado & S. Zona 1986-11-29 640 -21 Riverside Painted Cyn, Mecca Hills Comment
  POM308524  Psathyrotes ramosissima Henry J. Ramsey, Ramsey 1939-11-28 3171 Riverside 15 miles east of Indio Comment
  RSA472320  Psathyrotes ramosissima J. W. Jamie 1906-4-1 1456 Riverside Mecca Comment
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Nov 30 2009
  UCR144128  Psathyrotes ramosissima Scott D. White, Michael Honer 2003-5-15 9307 Riverside Sonora (Colorado) Desert, Bajada below Little Maria/Big Maria Mtns, near Inca RR siding and c. 15 air mi NW of Blythe 76 Comment
  UC354458  Pseudognaphalium biolettii Edmund C. Jaeger 1925-5-2 Riverside Box Springs Mountains Riverside, Box Springs Mountains Comment
  SD9078  Pseudognaphalium californicum Daniel Cleveland 1881-5-10 Riverside Temecula Comment
  JOTR30789  Pseudognaphalium luteoalbum La Doux, Tasha, K. White, A. Holt, C. Ely, J. Van Warmerdam 2007-2-26 2096 Riverside Joshua Tree National Park. Eagle Mountains; Cottonwood Oasis 914 Comment
  JOTR32526  Pseudognaphalium luteoalbum La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2607 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam; Small riparian pond environment with seasonally submerged muddy banks, surrounded by boulder outcrops (Stop 4) 1301 Comment
  RSA759172  Pseudotsuga macrocarpa Doug Goldman, Pat Griffith 2005-3-4 3048 Riverside South side of Route 74, about 0.7 miles west of the intersection with Route 243. San Bernardino national Forest. 1326 Comment
  RSA500095  Psilocarphus brevissimus Steve Boyd, Timothy S. Ross, Laurel Arnseth 1989-4-2 3215 Riverside Vail Lake Area, W end of bench on S flank of Oak Mt. 518 Comment
  RSA92380  Psilocarphus brevissimus F. W. Peirson 1922-4-29 2949 Riverside South of Lake Elsinore. 381 Comment
  UCR138156  Psilocarphus tenellus var. tenellus D. L. Banks 1997-3-29 1625 Riverside NW Palomar Mtns, Agua Tibia Mtns, Pechanga Indian Reservation. Headwaters of Pala Creek at the S extremity of the Reservation, north of the Riverside/San Diego Co. line, west of the intersection of Magee Truck Trail and Moreno Rd including a large area of vernally wet grassland at the extreme SW corner of the Reservation 409 Comment
  SEINET13310599  Psilostrophe cooperi A. C. Sanders 2015-9-11 41868 Riverside Sonoran (Colorado) Desert: Bradshaw Trail at border of Chocolate Mountains Aerial Gunnery Range, 2.25 miles east of GAsline Rd. 646 Comment
  JEPS41710  Psorothamnus arborescens var. simplicifolius M. French Gilman 1931-5-20 Riverside between Palm Springs and Whitewater Comment
  CAS-BOT-BC353623  Psorothamnus emoryi J. Von Loh 1978-1-24 3312 Riverside Palo Verde Mesa, Nichols Warm Spring 121 Comment
  CAS-BOT-BC353624  Psorothamnus emoryi W. R. Dudley 1903-12-25 s.n. Riverside near Palm Springs Comment
  CAS-BOT-BC353637  Psorothamnus emoryi E. A. McGregor 1917-3-19 717 a Riverside Indio Sands Comment
  RSA799244  Psorothamnus emoryi Thomas Stoughton, Duncan S. Bell, Debra Nelson 2011-2-20 735 Riverside South side of the Mecca hills, side canyon roughly 1.3 miles north of turnoff for Painted Canyon on Box Canyon Road 113 Comment
  SBBG68076  Psorothamnus emoryi R. Hoffmann 1928-10-21 Riverside below Fig Tree John's [Figtree John Spring] -60 Comment
  SDSU5209  Psorothamnus emoryi J. Beley 1975-4-23 74 -671 Riverside 10 miles north Palm Springs along paved T/access. Comment
  SEINET2063866 Image available Psorothamnus emoryi P. Leary 1975-4-27 1115 Riverside One mile SE of Pinto Wells, Joshua Tree National Monument. 365 Comment
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Dec 3 2014
  UC52161  Psorothamnus emoryi E. E. Schellenger Jul 25 1903-Aug 14 1903 4 Riverside near Palm Springs (Colorado Desert); , near Palm Springs Comment
  UCR111987  Psorothamnus emoryi A. C. Sanders, T. B. Salvato 2000-4-27 23376 Riverside Coachella Valley, east side of Coachella Canal near the foot of the Mecca Hills, vicinity of the east end of Ave 60 15 Comment
  UCR214715  Psorothamnus emoryi A. C. Sanders 2010-3-23 37546 Riverside Sonoran (Colorado) Desert, Chuckwalla Valley, at SW foot of Palen Mountains 130 Comment
  UCR25855  Psorothamnus emoryi John C. Roos, Lucille Roos 1949-4-6 4139 Riverside Sonoran (Colorado) Desert, east of Mecca Comment
  CAS-BOT-BC352323  Psorothamnus fremontii var. fremontii Raymond Lindholm 1961-4-17 s.n. Riverside White Water Canyon Comment
  CAS-BOT-BC352324  Psorothamnus fremontii var. fremontii Robert F. Thorne 1964-5-3 33849 Riverside near hwy., ca. 4 miles S of Morongo Valley and ca. 3 miles S of San Bernardino County line. Comment
  CAS-BOT-BC340875  Psorothamnus schottii John Thomas Howell 1928-3-25 3548 Riverside At entrance to Painted Canon [Canyon], Colorado Desert Comment
  UC1366080  Psorothamnus schottii Nancy Ryan Zabriskie 1969-4-26 193 Riverside Southeastr corner Ryan's cabin, Andreas Canyon near Palm Springs 365 Comment
  UCR279509  Psorothamnus schottii A. C. Sanders, Jim Malusa 2017-3-27 43116 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
  RSA0019787  Psorothamnus spinosus April Garbat, Kristin Forgrave 2013-5-29 75 Riverside Along Box Canyon Rd from Cottonwood Springs Rd to Mecca. 305 Comment
  UCR130050  Psorothamnus spinosus George K. Helmkamp, E. A. Helmkamp 1998-6-27 4106 Riverside Coachella Valley., Along Calif. Hwy 74 at the south end of Palm Desert 290 Comment
  UC218099  Pterospora andromedea P. A. Munz 1922-7-6 6009 Riverside Fern Valley San Jacinto Mts. (upper part, foot of zig-zag to Tahquitz Valley) 1828 Comment
  CHSC105751  Pterostegia drymarioides Christine C. Johnson; Paul J. Johnson 1985-3-12 956 Riverside Lamb Canyon, 2 miles NW of Gilman Hot Spr. 463 Comment
  RSA180397  Pterostegia drymarioides E. W. Lathrop 1965-5-7 5709 Riverside 5 miles SW of Murrieta on the De Luz Road. Comment
  RSA27013  Pterostegia drymarioides C. L. Hitchcock 1940-4-1 5909 Riverside 1 mi. below Cottonwood Springs. Joshua Tree Nat. Monument. Comment
  RSA0081605  Pyrola aphylla Patricia Wilder 1968-7-5 4327 Riverside Dogwood St. near Rimrock Dr., Idyllwild. San Jacinto Mt. Range, Strawberry-Little Tahquitz Creek Drainage. 1829 Comment
  UCR273966  Quercus Mitch Provance 2012-4-27 412- 34 Riverside The Badlands, Mt. Davis, southwest of Beaumont, about 1 mi S of I-10 and SR-60 interchange, just E of Davis Mountain Dr. and S of Westward Ave. 799 Comment
  UCSB38763  Quercus X munzii Muller, Cornelius 1952-3-23 Riverside Live-oak Tank, Joshua Tree National Monument Comment
  RSA588676  Quercus agrifolia var. agrifolia D. L. Banks, Steve D. Boyd 1995-10-26 833 Riverside NW Palomar Mountains; Agua Tibia Mountains; Cleveland National Forest, Agua Tibia Wilderness Area; Along the Woodchuck Trail, S of the first grassland. Approximately 0.7 miles from the Wilderness boundary. 713 Comment
  UC847819  Quercus agrifolia var. oxyadenia P. A. Munz 1922-7-3 5955 Riverside Vandeventer Flat San Jacinto Mts. 1371 Comment
  UCR106910  Quercus berberidifolia D. L. Banks, Lauren Raz 1996-11-5 1165 Riverside Agua Tibia Mountains, Pechanga Indian Reservation, SE of San Gabriel Church; along a newly established firebreak along a E facing ridge south of the Southern fork of Pechanga Creek 488 Comment
  JEPS38046  Quercus chrysolepis C. V. Meyer Jun 1927 165 Riverside Saunder's Meadow 1737 Comment
  UCSB1061  Quercus chrysolepis Neely, William 1948-10-3 Riverside Hill slopes of Fern Valley, Idyllwild, San Jacinto Mts. 2072 Comment
  JOTR32951  Quercus cornelius-mulleri La Doux, Tasha, Alice Miller and Victoria Sork 2009-5-3 302 Riverside Joshua Tree National Park. Little San Bernardino Mountains, Live Oak Picinic Area; coarse sandy wash with granitic outcrops Comment
  RSA477112  Quercus cornelius-mulleri J. C. Roos 1965-9-26 s.n. Riverside Pinyon Flats, Santa Rosa Mts. Comment
  UCR93997  Quercus cornelius-mulleri Scott D. White, D. Haselfeld 1996-7-2 4261 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
  UCSB1108  Quercus cornelius-mulleri Haller, John 1960-5-15 Riverside At Vandeventer Flat, 3.3 mi. E of the junc. of the road to Anza on Calif. 74 1371 Comment
  UCSB38785  Quercus cornelius-mulleri Steele, Kelly; Wilson, Chris 1982-2-19 Riverside Corner of El Encino and Avenue La Cumbre; 0.3 miles north from the junction of Carrizo Road and Hwy. 74. San Jacinto Mts. 1036 Comment
  UCSB58830  Quercus cornelius-mulleri Muller, Cornelius 1941-8-10 Riverside San Jacinto Mtns, 12 miles S.E. of Keen Camp Comment
  CAS-BOT-BC105321  Quercus kelloggii Carl Epling 1931-10-4 245 Riverside Strawberry Valley, San Jacinto Mts. 1584 Comment
  CAS-BOT-BC105322  Quercus kelloggii Carl B. Wolf 1932-8-6 3992 Riverside San Jacinto Mts., Strawberry Valley, base of Dveil's Slide Trail to Tahquitz Valley 1706 Comment
  UCD46614  Quercus kelloggii Maunsell Van Rensselaer 1937-6-23 Riverside Idyllwild Inn, San Jacinto Mountains, Riverside County, California. Comment
  RSA334886  Quercus palmeri A. C. Sanders, Steve D. Boyd 1980-4-17 1345 Riverside Along the Palms to Pines highway (Hwy 74), 0.2 miles west of its jct with the road to Anza (Hwy 371) 1463 Comment
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Sep 10 2011
  UCR270292  Quercus palmeri John F. Emmel 1999-10-2 1645 Riverside San Jacinto Mountains, southeast Garner Valley area, south end of Pine Meadow, 1.0-1.1 road miles southeast of Devils Ladder Road on Hwy 74, WSW of the hwy 1448 Comment
  POM183874  Quercus turbinella P. A. Munz 1932-10-16 12845 Riverside Road from Deep Canyon to Vanderventer Flat, Santa Rosa Mts. 1067 Comment
  UCD166226  Quercus turbinella Jack Major 1962-4-16 769 Riverside Along California Hwy 74, below Pinyon Flat toward Palm Desert. (Exact location unknown. Coordinates estimated by label maker.) 1220 Comment
  JOTR35493  Rafinesquia californica La Doux, Tasha, D. Shade, S. De Groot, N. Fraga, L. Washburn 2013-4-26 3181 Riverside Joshua Tree National Park. Little San Bernardino Mtns, Upper Smithwater Canyon, NW of Quail Mtn. (Biodiversity Hunt stop2) 1295 Comment
  RSA519261  Rafinesquia californica Ed LaRue 1989-5-8 s.n. Riverside Mockingbird Canyon area, S of Van Buren Blvd and ca 1/2 mi (airline) E of Mockingbird Canyon Road. Comment
  RSA776345  Rafinesquia neomexicana Duncan S. Bell 2010-3-20 623 Riverside Riverside Mountains; in the vicinity of Calzona Mine; approximately 2 air miles northeast of Riverside Mountain Peak. 232 Comment
  UCR132503  Rafinesquia neomexicana Chet McGaugh 2004-2-25 s.n. Riverside Sonoran (Colorado) Desert, Coachella Valley, northern Palm Springs, near the Whitewater River channel, NW corner of Sunrise Way and San Rafael 171 Comment
  UC827610  Ranunculus aquatilis var. capillaceus P. A. Munz 1922-4-28 5022 Riverside 5 mi nw Corona (in small branch of creek); Chino Creek 228 Comment
  UC9432  Ranunculus eschscholtzii var. oxynotus H. M. Hall July, 1901 2414 Riverside San Jacinto Mountains; near the summit 3291 Comment
  SEINET270114  Ranunculus hebecarpus Steve Boyd, Tim Ross; Orlando Mistretta 1992-3-31 6759 Riverside San Mateo Canyon Wilderness Area ; Santa ana Mountains Tenaja trail from junction with Morgan Trail south to Pigeon Spring area 67 Comment
  UCR20915  Ranunculus sceleratus A. C. Sanders 1978-7-5 575 Riverside San Jacinto Mountains, James Reserve, near head of Lake Fulmor at the mouth of Indian Creek 1616 Comment
  CLARK-A1528-5387  Raphanus sativus John C. Roos, Lucille Roos 1951-10-24 5342 Riverside Pedley 243 Comment
  UCR97482  Rhamnus crocea A. C. Sanders, O. F. Clarke & H. Forster 1997-3-2 19773 Riverside Box Springs Mountains, E side of the range in Pigeon Pass area, above W end of Quail Call Drive, in canyon just west of section line. 610 Comment
  CAS-BOT-BC56045  Rhamnus ilicifolia L. R. Abrams 1908-7-21 s.n. Riverside Santa Ana Mountains, near Elsinore Comment
  CAS-BOT-BC56051  Rhamnus ilicifolia H. M. Hall 1901-6-1 2017 Riverside Canyon of the San Jacinto River Comment
  RSA796514  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop 1977-5-18 49724 Riverside Santa Ana Mountains: Bear Spring [east slope of Santiago Peak] Comment
  UCR101451  Rhamnus ilicifolia A. C. Sanders, Tracy Tennant, Jeff Ross 1998-8-20 22217 Riverside San Bernardino Mtns., Morongo Indian Reservation, Middle Branch of Millard Canyon 1341 Comment
  SFV18007  Rhododendron occidentale J. D. Dilley 1999-7-7 380 Riverside San Jacinto Mountains Black Mountain. Black Mountain Road, 0.5 miles south of Boulder Basin Camp. 2134 Comment
  CAS-BOT-BC170528  Rhus aromatica H. E. McMinn 1925-7-2 1515 Riverside Tahquitz Trail to Tahquitz Peak, San Jacinto Mts. Comment
  UCR174054  Rhus aromatica A. C. Sanders 2006-5-19 32429 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
  CAS-BOT-BC167970  Rhus ovata C. L. Hitchcock; C. V. Muhlick 1964-3-17 23098 Riverside 3 miles s.e. of Glen Ivy Hot Springs Comment
  POM13126  Rhus ovata I. M. Johnston 1922-5-18 5327 Riverside Glen Ivy Comment
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Sep 24 2013
  POM2725  Rhus ovata I. M. Johnston s.n. Riverside Palm Canyon 762 Comment
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Jul 4 2015
  RSA650228  Rhus ovata Darrell Garrett 1949-2-6 s.n. Riverside White Water Canyon. 213 Comment
  SD137932  Rhus ovata Darin L. Banks, Steve Boyd 1995-3-16 108 Riverside Cleveland National Forest, Agua Tibia Wilderness Area, east of the Dripping Springs Alcove, north slope of Wildhorse Peak on Wildhorse trail 669 Comment
  UC219274  Rhus ovata P. A. Munz, I. M. Johnston 1922-5-18 5327 Riverside Comment
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Sep 24 2013
  POM11525  Rhus trilobata var. anisophylla P. A. Munz 1922-7-3 5956 Riverside S slope of Santa Rosa Mountains 1524 Comment
  RSA594511  Rhus trilobata var. pilosissima D. L. Banks, Dylan Hannon 1996-5-3 998 Riverside Agua Tibia Mountains; Cleveland National Forest; Dripping Springs Campground, 30 m N of campsite #9 487 Comment
  JEPS44378  Ribes cereum Lauramay T. Dempster and G. L. Stebbins 1966-6-19 4255 Riverside just below Toro Peak (i.e. s of the saddle e of the peak); Santa Rosa Mts. 2499 Comment
  UC729898  Ribes cereum var. cereum Carl B. Wolf 1932-8-5 3968 Riverside above small stream and meadows feeding Tahquitz Creek (on trail from Tahquitz Valley to San Jacinto Peak); San Jacinto Mts. 2804 Comment
  RSA615141  Ribes quercetorum A. C. Sanders, O. F. Clarke, H Foster 1997-3-2 19766 Riverside Box Springs Mountains E side of the range in Pigeon Pass area, above W end of Quail Call Drive, in canyon just west of section line. 610 Comment
  RSA662133  Ricinus communis Carol Zuck 1981-2-16 32 Riverside 1 mi east of I-15 on Cajelco Rd. Comment
  UCR114738  Robinia pseudoacacia A. C. Sanders, K. C. Rose 1999-6-18 22802 Riverside Skinner/Domenigoni area, French Valley, E side of Washington Ave., 1/2 mile south of Rawson Rd. 439 Comment
  RSA519258  Romneya coulteri Ed LaRue 1989-4-26 s.n. Riverside 2 mi. (airline) NW of Lake Elsinore, adjacent to Cleveland National Forest; at mouths of Rice and McVicker Canyons. 488 Comment
  RSA752136  Rorippa curvisiliqua Justin M. Wood, Brandy Wood 2009-7-4 1040 Riverside Riverside Flood Control Basin, SW corner of Patton Rd and Wineville Rd, immediately S of San Bernardino County Line. 250 Comment
  POM1465  Rosa californica I. M. Johnston 1918-5-30 1992 Riverside Temescal Canyon (between Elsinore and Corona). 366 Comment
  UCR35177  Rosa californica L. B. Ziegler 1966-8-9 76 Riverside San Jacinto Mtns., Hemet (Thomas-Garner) Valley 1418 Comment
  RSA192111  Rubus ursinus E. W. Lathrop 1960-6-9 4986 Riverside 14 miles west of Murrieta. Comment
  JOTR32380  Rumex crispus La Doux, Tasha, M. Harding, T. Herskovits, B. Truesdell, M. Wheeler 2011-6-16 2489 Riverside Joshua Tree National Park. Queen Mountains; Barker Dam; Small riparian pond environment with seasonally submerged muddy banks, surrounded by boulder outcrops (Stop 4) 1301 Comment
  RSA757443  Rumex crispus Robert F. Thorne, E. W. Lathrop, S. Beckstrom-Sternberg, B. Martin 1982-05 55222 Riverside SW of Murrieta. Santa Rosa Plateau, Mesa de la Punta near S. edge of plateau, approached from De Luz road. 730 Comment
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Oct 27 2011
  SEINET272344  Rumex hymenosepalus A. C. Sanders, G Helmkamp 1997-3-15 19958 Riverside Lake Skinner Area; NE of Skinner Lake in a tributary to Rawson Canyon along the dirt road. UTM 10km cell: MH-9E 1N. Sk 503 Comment
  UCR86651  Rumex hymenosepalus A. C. Sanders, James C. Dice, K. C. Rose, D. Woodard 1995-3-29 16264 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
  UCR211729  Rumex pulcher Fred M. Roberts, D. E. Bramlet 2005-5-5 6181 Riverside Perris Basin, San Jacinto Valley, along MWD canal just north of Devonshire Road and west of Warren Road 458 Comment
  UCR167978  Rumex salicifolius T. B. Salvato, John F. Green 2004-5-27 652 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
  UC850653  Rumex salicifolius var. salicifolius I. W. Clokey and E. G. Anderson 1935-8-21 6601 Riverside Fuller Creek 1500 Comment
  UC604956  Salazaria mexicana Roxana S. Ferris and Ruth P. Rossbach 1938-5-15 9543 Riverside Cottonwood Springs Canyon Comment
  UCR89544  Salazaria mexicana Bern Schwenn 1994-4-9 s.n. Riverside southern Mojave Desert, Little San Bernardino Mtns., Joshua Tree National Monument [now National Park]: Hidden Gold Canyon 1115 Comment
  UC1136469  Salicornia virginica A. Lewis 1934-5-19 453 Riverside Lakeview Elsinore Quad. 426 Comment
  HSC93368  Salix exigua Scott D. White 1996-4-14 3927 Riverside E of Hemet, San Jacinto River Wash near Valle Vista, N of Hwy. 74, 1.7 mi. W of USFS Cranston Fire Station 534 Comment
  RSA0119965  Salix exigua Duncan S. Bell, Isaac Marck, Evan Meyer 2016-3-24 9074 Riverside Santa Rosa Mountains; Santa Rosa Wilderness area; collecting in Martinez Canyon, approximately 5.25 air miles southeast of the summit of Martinez Mountain. 621 Comment
  RSA6466  Salix exigua H. P. Bracelin 1932-4-12 599 Riverside East side of bridge over Santa Ana River, 4.8 km. north of Arlington on road to Pedley, west of Riverside. 240 Comment
  SBBG58867  Salix exigua M. N. Ackley 1928-3-10 Riverside Bridge Haven [Service Station in Whitewater, 1920s -1950] 426 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
  UCR11299  Salix exigua O. F. Clarke, M. Alexander 1971-3-31 s.n. Riverside Santa Ana River Bottom, Union Pacific Bridge 213 Comment
  UCR94250  Salix exigua Scott D. White 1996-4-14 3927 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
  UC846449  Salix exigua var. hindsiana P. A. Munz and I. M. Johnston 1922-5-7 5270 Riverside Keyes Ranch along small stream Keyes Ranch; Little San Bernardino Mts. 1066 Comment
  UCR112489  Salix gooddingii A. C. Sanders, T. B. Salvato 2000-5-30 23434 Riverside Menifee Valley, S of Newport Rd., north of Holland Rd. and east of Bradley Rd., 2 miles due east of Railroad Canyon Lake 488 Comment
  UCR121089  Salix gooddingii A. C. Sanders, Mark Elvin, M. S. Enright 2002-4-16 24971 Riverside The Badlands, Laborde Canyon and adjacent slopes and side canyons, 1 mile east of Mt. Eden, SW of Beaumont 610 Comment
  UCR189284  Salix gooddingii Fred M. Roberts, S. Leatherman 2007-9-19 6593 Riverside Santa Ana Canyon, Santa Ana River, across from Green River Golf Course, 0.15 km W of Green River Road bridge 128 Comment
  UCR17464  Salix laevigata N. R. Zabriskie, W. W. Zabriskie 1970-3-27 268 Riverside Western Colorado Desert/ San Jacinto Mtns, Andreas Canyon, east slope of mountains 305 Comment
  CAS-BOT-BC129511  Salix melanopsis Geo. B. Grant 1906-5-1 s.n. Riverside Colorado Deserat at Palm Springs Comment
  CAS-BOT-BC126323  Salix sessilifolia Milo S. Baker 1928-4-3 2832 b Riverside Tahquitz [Canon] Canyon near Palm Sps. Comment
  CAS-BOT-BC176911  Salsola tragus T. C. Fuller 1975-11-6 20115 Riverside Northeast corner of Monroe Street & Interstate 10 freeway, Indio Comment
  RSA772578  Saltugilia australis Orlando Mistretta, Duncan S. Bell, J. D. England, Jamie Hall, Chris McDonald, Lucila Reccia 2010-4-13 5047 Riverside Whitewater Canyon. Along Whitewater River drainage and adjacent slopes 0-1 miles above Whitewater Visitor Center (Whitewater Trout Farm); between N34.00456, W116.67238 and N33.99629 and W116.66010 750 Comment
  RSA0094960  Saltugilia australis Steve Boyd, Tim Ross 1992-5-15 7395 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
  UC219088  Saltugilia splendens subsp. splendens P. A. Munz 1922-7-6 6015 Riverside Tahquitz Valley San Jacinto Mts., Tahquitz Valley 2194 Comment
  CLARK-A1528-3104  Salvia apiana John C. Roos 1948-5-8 3823 Riverside Whitewater Comment
  SDSU12262  Salvia apiana Jeremy Mass, Ryan Jacobsen 2000-4-19 8 Riverside Roadside along Stone Creek near Southside Field Station, Santa Margarita Ecological Reserve (SDSU). 222 Comment
  UCR262266  Salvia apiana T. B. Salvato, Meenaxi R. Panakkal, Tim Thomas 2009-6-23 3739 Riverside San Jacinto Mountains, San Jacinto River Canyon, along South Fork Trail (FSR 2E17), c. halfway between Hwy 74 and the bottom of the canyon 1274 Comment
  POM3983  Salvia carduacea P. A. Munz 1918-4-27 2125 Riverside Mouth of Temescal Canyon, southeast of Corona. Comment
  RSA411372  Salvia carduacea Bonnie C. Templeton 1931-4-23 s.n. Riverside Between Perris and Gavilan Peak. 600 Comment
  CLARK-A1528-584  Salvia columbariae C. M. Flanagan 1973-5-20 OO 526 Riverside Morongo Indian Reservation 1158 Comment
  UCLA70169  Salvia columbariae Harlan Lewis 1937-3-7 Riverside White Water Comment
  UCR20766  Salvia columbariae A. C. Sanders, Steve Boyd, J. Zabriskie 1980-4-17 1315 Riverside Sonoran (Colorado) Desert, Coachella Valley, 5 miles ESE of Thousand Palms, west side of Washington Street c. 1 mi north of Interstate Hwy 10 35 Comment
  UCR241103  Salvia columbariae A. C. Sanders, Timothy W. Chumley 2013-4-2 40740 Riverside Peninsular Range, Temescal Canyon between Horsethief Canyon Rd. and Hostettler Rd., near I-15 Fwy, SE of Corona (Lee) Lake 377 Comment
  UCR279540  Salvia columbariae A. C. Sanders, Jim Malusa 2017-3-29 43185 Riverside Sonoran (Colorado) Desert, northern Chocolate Mountains, large canyon 2.8 km south of the confluence of Red Canyon and Salt Creek 460 Comment
  JEPS16866  Salvia greatae Marjorie D. Clary 1938-4-17 2844 Riverside n of Salton Sea (bajada at base of Orocopia Mts); Orocopia Mts. 243 Comment
  NY346  Salvia greatae H. M. Hall 04 1905 5848 Riverside Near Dos Palms, Colorado desert Comment
  JOTR30207  Salvia leucophylla Vanderspek & Nolte 1964-4-17 s.n. Riverside Joshua Tree National Park. Comment
  RSA666647  Salvia mellifera A. C. Sanders, Kent Beaman 2002-5-10 25046 Riverside Santa Ana Mtns., Santa Rosa Plateau: hills west of the head of De Luz Creek, 0.4 mi south of Tenaja Rd. on west side of Calle Roble near Avenida Matorral. 671 Comment
  UC1287000  Salvia mellifera C. L. Hitchcock 1966-3-16 24181 Riverside 0.25 mi w Aguanga Comment
  RSA448915  Salvia vaseyi Gale Sphon 1955-5-22 s.n. Riverside 5 miles south of Pinon Flats, Palms to Pines Hiwy. [74]. Comment
  UCR86855  Salvia vaseyi A. C. Sanders, K. C. Rose 1995-4-27 16736 Riverside Sonoran (Colorado) Desert, Coachella Valley, foot of the Little San Bernardino Mtns., canyon east of Fan Hill, just outside Joshua Tree Nat. Park 549 Comment
  UCR131826  Sambucus mexicana Jennie Phui 1998-5-30 036 Riverside San Bernardino Mtns./San Gorgonio Pass, Morongo Indian Reservation, eastern fork of Lion Canyon, 3 miles up Lion Canyon road north of I-10 Fwy 600 Comment
  CAS-BOT-BC238851  Sambucus nigra subsp. caerulea A. M. Vollmer; L. Beane 1953-6-29 16 Riverside Oak Glen, San Bernardino Mountains Comment
  CAS-BOT-BC238852  Sambucus nigra subsp. caerulea M. Bourell; R. Patterson; S. Timbrook 1986-4-7 2956 Riverside Temescal Canyon Rd. ca. 1 mi. SE of Glenn Ivy Hotsprings [Hot Springs], ca. 200 meters from RR overpass 259 Comment
  POM307780  Sanicula arguta Henry J. Ramsey, Henry J. Ramsey 1938-3-26 255 -I Riverside Corona-Elsinore Road. Comment
  RSA5004  Sanicula arguta Dorothy R. Wolf 1932-3-20 4 Riverside Richman Ranch 2.5 mi N of De Luz. SW Riverside County 457 Comment
  UCR132860  Sanicula arguta Kent Beaman 1983-4-24 25 Riverside Santa Ana Mtns., north and west of Murrieta; Clinton Keith Road about 2 miles west of Hwy 15, south side of road just before it starts up a hill 427 Comment
  RSA613427  Sanicula crassicaulis D. L. Banks 1997-4-5 1665 Riverside NW Palomar Mountains, Agua Tibia Mountains: Agua Tibia Wilderness Area. South of Dorland Mountain, just east of the Wilderness Area boundry with the Pechanga Indian Reservation., Along a tributary of the north fork of Pechanga Creek. 670 Comment
  RSA125530  Sarcodes sanguinea R. Weatherby 1949-6-6 648 Riverside San Jacinto Mts., Dark Canyon 1982 Comment
  RSA249824  Sarcodes sanguinea R. F. Thorne, C. W. Tilforth, J. P. Simon 1969-6-24 38122 Riverside San Bernardino National Forest, San Jacinto Mountains.: Above and in James Reserve. 1677 Comment
  UCR149848  Sarcostemma cynanchoides Scott D. White, Michael Honer 2004-4-6 10061 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
  UCR34992  Sarcostemma cynanchoides L. B. Ziegler 1966-9-13 085 Riverside Sonoran (Colorado) Desert, San Jacinto Mountains, Carrizo Spring (Carrizo Creek), c.3/8 mi above Hwy 74 crossing of canyon. 703 Comment
  UC23115  Sarcostemma cynanchoides subsp. hartwegii H. M. Hall June, 1901 2104 Riverside e. base along borders of Colorado Desert San Jacinto Mts.; Colorado Desert, San Jacinto Mts. Comment
  UC665744  Sarcostemma cynanchoides subsp. hartwegii Ira L. Wiggins 1941-3-26 9663 Riverside along wash at Wiley Well Comment
  SEINET206448  Sarcostemma hirtellum Rimo Bacigalupi, Roxana S. Ferris 1958-3-21 6253 Riverside Herbage exuding alliaceous odor. Twining about in a clump of Hilaria rigida in a small wash from the west slope ofthe Big Maria Mts. near the roas to Midland, about 13 miles north of Blythe, elev. 860 ft. 262 Comment
  RSA674759  Schedonorus arundinaceus Scott D. White, Teresa Salvato 2001-6-8 8571 Riverside Santa Ana Mountains: Southern margin of county, just northeast of Rainbow Valley. 335 Comment
  RSA614179  Schismus barbatus D. L. Banks 1997-2-17 1280 Riverside NW Palomar Mountains, Agua Tibia Mountains: Pechanga Indian Reservation, along Pechanga Road in the Reservation, approximately 10 m west of the Pechanga Tribal Government Center. 367 Comment
  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
  UCR26326  Schismus barbatus John C. Roos 1940-3-3 912 Riverside Sonoran (Colorado) Desert, around Palm Springs 183 Comment
  RSA736655  Schoenoplectus americanus Justin M. Wood 2008-7-16 31 Riverside Gavilan Hills at Temescal Wash, near Olsen Canyon, Morgan property, Alberhill area. Comment
  RSA366085  Schoenoplectus maritimus Lester H. Cushman 1932-5-8 s.n. Riverside Near Pedley, close to Santa Ana R. [River]. Comment
  UC840545  Scirpus americanus Ivan Johnston 1917-4-4 Riverside along creek (Palm Canyon, Colorado Desert, Southern California); Colorado Desert, Palm Canyon 274 Comment
  RSA747274  Scrophularia Orlando Mistretta 1992-6-10 530 Riverside Peninsular Ranges: (Cleveland National Forest) Along old road coming off 3504 W of Sierra Peak. Head of road. Comment
  RSA425198  Scrophularia californica subsp. floribunda Christopher Davidson 1975-6-16 2801 Riverside Ca. 2 miles S of Banning on road R1 to Idyllwild. 823 Comment
  UC1518632  Scrophularia californica subsp. floribunda Robert F. Thorne, Drs. Fosberg, Sachet, and Herbst 1983-4-23 55485 Riverside 4 mi n Whitewater Post Office (along Whtiewater River where road crosses river below fish hatchery); San Bernardino Mts 640 Comment
  UC76439  Scrophularia californica subsp. floribunda Miss M. Alice King May, 1893 Riverside Box Springs Comment
  UC1361956  Sedum niveum Reid Moran 1968-8-3 15346 Riverside on ne slope ridge 1 mi nw Toro Peak; nw of Toro Peak 2250 Comment
  POM13013  Selaginella bigelovii Philip A. Munz, I. M. Johnston 1922-5-19 5439 Riverside Garner Ranch, Hemet Valley in San Jacinto Mountains. 1372 Comment
  RSA683766  Selaginella bigelovii Meryl B. Dunkle 1934-2-19 3841 Riverside San Juan Canyon. 610 Comment
  UC1177500  Selaginella bigelovii Lewis S. Rose 1959-1-14 59014 Riverside White Water; Mission Canyon 426 Comment
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Apr 20 2013
  SD181812  Selaginella eremophila Louis C. Wheeler 1964-10-17 8639 Riverside North slope of Orocopia Mountains, southerly from Hayfield Reservoir, below water shedding sloping rock faces in sun. Comment
  RSA660488  Senecio californicus A. C. Sanders 1998-3-11 21685 Riverside North Domenigoni Hills, north of Diamond Valley, near old mine site above San Jacinto Valley, south of end of Warren Rd. 610 Comment
  SBBG101727  Senecio californicus S. Boyd with T. Ross, M. Hammitt 1991-5-2 6070 Riverside SW and W flanks of Billy Goat Mtn, 3 mi N of Hwy 79, 1 mi W of Hwy 371, N of Aguanga 600 Comment
  LA203916  Senecio flaccidus var. douglasii Elizabeth McClintock; 1938-5-15 sn Riverside San Jacinto Mountains, foot of Idyllwild grade Comment
  RSA472991  Senecio flaccidus var. douglasii N. Cooper 1949-6-29 4282 Riverside Palms to Pines Highway, San Jacinto Mountain, below Pinon Flats. 1067 Comment
  UCR3835  Senecio flaccidus var. douglasii John Minnich 1964-6-5 64-6-5- 01 Riverside Santa Ana Mtns, Hwy 74 610 Comment
  RSA775968  Senecio mohavensis Thomas Stoughton, Christi Gabriel, Stephanie Rockwood, Jacqueline McConnaughy 2011-3-24 859 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
  UCR279582  Senecio mohavensis A. C. Sanders, Jim Malusa 2017-3-28 43153 Riverside Sonoran (Colorado) Desert, Northern edge of Chocolate Mountains, along Salt Creek at edge of Navy Aerial Gunnery Range, vicinity of Clemons Well site, between wash and old Kaiser RR 314 Comment
  RSA444580  Senecio vulgaris B. Roy 1988-2-21 2- 21 -88/2 Riverside Cahuilla County Park, near Indio down 58th Street from intersection with Monroe St. 3 Comment
  CLARK-A1656-782  Sesuvium verrucosum Theo Glenn 1982-4-18 Riverside Mecca Comment
  UCR110403  Sesuvium verrucosum A. C. Sanders, D. Bramlet, Mihai Costea, T. B. Salvato 1999-10-15 23186 Riverside San Jacinto Valley, Mystic (San Jacinto) Lake, 1 mile west of Jackrabbit Trail on Gilman Springs Rd., 0.4 mi. west of Quail Lake Golf C. entrance, 2 mi. WNW of Eden Hot Spr. 436 Comment
  SEINET239062 Image available Setaria italica Bill Isom 1973-10-30 206 Riverside Moreno Valley: Cultivated experimentally at UC Moreno Valley Field Station south of Allesandro (&Cactus) between nason 457 Comment
  CAS-BOT-BC243634  Setaria pumila S. B. Parish 1912-10-13 8244 Riverside Mecca, Salton Basin -57 Comment
  SEINET239052 Image available Setaria verticillata T. B. Salvato, A. C. Sanders 2000-4-27 63 Riverside Coachella Valley; between Filmore and Buchanon on Avenue 56. Comment
  UCD92862  Setaria viridis Herbert L. Mason; Malcolm A. Nobs 1948-9-3 491 Riverside 2 miles north of Indio. Comment
  RSA596537  Setaria viridis D. L. Banks, Lauren Raz 1996-8-29 1136 Riverside NW Palomar Mountains; Agua Tibia Mountains; NW foothills of Dorland Mtn.; Along Los Caballos Road, approximately 0.5 m S of Hwy. 79, 100 m N of the Golf Course access road;, along the E side of the road under the drip irrigation line to a vineyard. 399 Comment
  RSA33842  Sidalcea malviflora subsp. sparsifolia N. C. Cooper 1944-5-20 1240 Riverside Palms to Pines Highway. 1433 Comment
  RSA68329  Sidalcea malviflora subsp. sparsifolia G. R. Campbell 1951-5-30 16147 Riverside Pine Meadow Ranch, SE of Kenworthy 1433 Comment
  SDSU14281  Sidalcea sparsifolia Ryan Jacobson, Jeremy Mass 2000-4-19 6 Riverside Santa Margarita Ecological Reserve. Near the banks of Stone Creek, approximately 0.5 mile east of the south-side facility. 177 Comment
  CAS-BOT-BC434384  Sidotheca trilobata Susan G. Stokes 1934-7-1 312 Riverside San Jacinto Mt. 1219 Comment
  RSA65708  Silene antirrhina F. W. Peirson 1919-4-14 5321 Riverside Murray Canyon near Palm Springs 381 Comment
  SD152887  Silene antirrhina Steve Boyd, Tim Ross and Dave Bramlet 1993-5-12 7353 Riverside Southern Santa Ana Mountains, San Mateo Canyon, along stream and adjacent benches and lower slopes from confluence with Los Alamos Canyon. 365 Comment
  RSA560367  Silene gallica Steve Boyd 1992-4-14 6823 Riverside Santa Ana Mountains, San Mateo Canyon Wilderness Area; Western flank of Bluewater Canyon along Bluewater Trail. 341 Comment
  UCD99022  Silene parishii Reid Moran 1968-8-3 15369 Riverside north slope 1 mile west of summit, Santa Rosa Mountain. 2150 Comment
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Apr 27 2012
  RSA701743  Silene verecunda Steve Boyd, Valerie Soza 2004-6-22 11540 Riverside Western flank of the range in Hall Canyon, at the south end of Lake Fulmor, just north of Hwy 243. 1646 Comment
  SJSU7898  Simmondsia chinensis R. C. McGehee 1970-4-30 249 Riverside 4 mi W of Corn Springs Campground, Corn Springs, Chuckwalla Mts c. 6 mi S of Desert Center Comment
  UCR139379  Simmondsia chinensis I. M. Johnston 1917-4-4 1081 Riverside San Jacinto Mtns./Sonoran (Colorado) Desert, Palm Canyon 427 Comment
  POM244246  Sinapis alba C. B. Wolf 1936-4-21 7769 Riverside 4 mi. W. of Riverside and south of Jurupa Rd. 305 Comment
  SD54449  Sisymbrium altissimum Reid Moran 1962-7-7 9866 Riverside By Strawberry Creek, 2.0 miles southwest of Idyllwild, San Jacinto Mountains. 1550 Comment
  RSA496661  Sisymbrium erysimoides A. C. Sanders 1988-1-18 7589 Riverside Riverside. W end of the Box Springs Mountains on S-facing slopes of Sugarloaf Peak. 579 Comment
  UCR213471  Sisymbrium erysimoides A. C. Sanders 2010-5-19 38416 Riverside Peninsular Range/San Bernardino Valley, Riverside, western end of North Hill, edge of Fairmont Park, above intersection of Redwood Dr. and Randall Rd. 250 Comment
  UCR83199  Sisymbrium erysimoides A. C. Sanders 1994-5-15 14478 Riverside Mount Rubidoux, a rocky granitic hill on the NW side of Riverside on the E bank of the Santa Ana River 400 Comment
  UCR116712  Sisymbrium irio Helen Kennedy, Sara Mills 2001-3-17 5390 Riverside Mojave Desert, 0.8 mi from the junction of Hwy 10 & Cottonwood Springs Road,