Search Results — 2000 specimen records retrieved (1643 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA697264  Abelia X grandiflora M. Gidcomb 1934-09 s.n. Orange Santa Ana Comment
  RSA460929  Abronia maritima N. C. Cooper 1942-11-9 888 Orange Balboa Comment
  RSA585489  Abronia maritima R. E. Riefner Jr. 1994-5-22 94 -380 Orange San Mateo Point, W of RR tracks, just N of Orange Co. line marker. Comment
  UCR228888  Abronia maritima Dick Newell, Don Millar 2011-7-29 216 Orange South Coast, Bolsa Chica Ecological Reserve, 1.3 miles southeast of Pacific Coast Hwy at Warner Ave. 5 Comment
  CAS-BOT-BC229408  Abronia umbellata Peter H. Raven 1957-9-28 11374 Orange North limits of Surfside Comment
  POM212062  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 76 Comment
  UCR182816  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06- 418 Orange Southern Coast, Corona del Mar, Ocean Blvd. near Iris Ave. 11 Comment
  UCR169911  Acacia Scott D. White, Jennifer H. Jones 2005-4-26 10972 Orange Laguna Beach area., City of Laguna Beach. 549 Nyes Place. Undeveloped lot within a residential neighborhood. Proposed for new home Comment
  SEINET5642645  Acacia longifolia Shelby J. Wood 2013-3-6 4 Orange Laguna Hills.; 0 Comment
  IRVC9265  Acer macrophyllum B. Gittins 1963-4-18 171 c Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  RSA696051  Achillea millefolium M. Funakoshi 1943-10-23 s.n. Orange Santa Ana. Comment
  UCD50245  Achnatherum coronatum Peter Kamb 1948-6-19 1090 Orange Erect or ascending cespitose perennial with stout stems 15-25dm high. Holy Jim Canyon, Santa Ana Mts. Orange County, California 609 Comment
  UCSB48021  Acmispon americanus Roberts, Fred 1980-7-1 Orange Irvine; San Diego Creek, 0.2 km NE Interstate 5; 2.0 km WSW Bench Mark 343 85 Comment
  UCD170068  Acourtia microcephala R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49626 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station. 214 Comment
  CAS-BOT-BC133135  Adenostoma fasciculatum John Thomas Howell 1927-7-29 2873 Orange On N. side of Santa Ana [Canon] Canyon 243 Comment
  RSA750003  Adenostoma fasciculatum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35319 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UC2031958  Adiantum capillus-veneris R. E. Riefner Jr. 2012-2-23 12 -43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway Comment
  UCR193804  Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  IRVC22503  Adiantum jordanii Fred M. Roberts 1985-5-1 1693 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  RSA0014998  Adiantum jordanii Fred M. Roberts 2008-5-14 6960 Orange Lomas de Santiago: Loma Ridge, upper Bee Flat Canyon below Loma Ridge Rd., 1.3 km N Bee Peak and 5.4 km NW Bolero Lookout, Irvine Ranch Conservancy. 337 Comment
  RSA84993  Adiantum jordanii F. W. Peirson 1924-5-31 4666 Orange 5 miles SE of Laguna Beach. Comment
  RSA543967  Agoseris grandiflora var. grandiflora Steve Boyd, Orlando Mistretta 1991-5-9 6198 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  UCR228792  Agoseris retrorsa Dick Newell, Don Millar 2011-5-8 146 Orange Peninsular Range; Santa Ana Mtns., Maple Spring Rd., Cleveland National Forest 1173 Comment
  SEINET241816  Agrostis gigantea J. T. Howell 68 Orange CULTIVATED; Botany Garden, Rancho Santa Ana. 152 Comment
  RSA542555  Agrostis pallens Karlin G. Marsh 1989-6-23 s.n. Orange Santa Ana Mountains: Central Santiago Canyon, northeast portion of Fleming Park along Harding Truck Trail. 585 Comment
  RSA734668  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-6-17 35490 Orange Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  RSA748255  Agrostis pallens A. C. Sanders, Mitch Provance 2008-5-20 35389 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SEINET3237806 Image available Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 3581 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon. 325 Comment
  SEINET3916500  Agrostis pallens A. C. Sanders, Fred M. Roberts 2008-7-16 35851 Orange Penninsular Range; Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon.; 0 325 Comment
  CDA1694  Agrostis viridis M. K. Bellue, Johnson 1945-5-8 Orange Right and Hazzard, about 1/2 mile south of Garden Grove. 0 Comment
  UCR192983  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCSB52871  Allium haematochiton Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.8 km. SSW UCI campus center 60 Comment
  IRVC26677  Allium haematochiton Mark A. Elvin 2004-4-4 3213 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA798606  Allium monticola var. keckii Robert F. Thorne, E. W. Lathrop 1977-5-18 49744 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  UCR192119  Allium praecox A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35305 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA759244  Allium praecox Robt. Allen, Nancy Barnhill 2008-3-30 s.n. Orange San Joaquin Hills, Laguna Coast Wilderness Park, along Mary's Trail, a short distance uphill from the Nix Nature Center 134 Comment
  IRVC28639  Allophyllum glutinosum Mark A. Elvin, A. C. Sanders 2005-9-2 4494 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  RSA588705  Allophyllum glutinosum Fred M. Roberts, Carol A. Roberts 1990-5-23 4646 Orange Santa Ana Mtns.: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  CAS-BOT-BC170688  Alnus rhombifolia John Thomas Howell 1927-7-21 2810 Orange Santa Ana River bottom, Santa Ana Canon [canyon] 152 Comment
  IRVC21737  Alnus rhombifolia Fred M. Roberts 1984-10-18 1425 Orange San Juan Canyon, 2.5km ENE San Juan Guard Station; 4.0km WNW Sitton Peak, Santa Ana Mountains 310 Comment
  OBI6021  Alnus rhombifolia Carl B. Wolf 1931-3-6 1855 Orange Trabuco camp ground, Trabuco cyn, W slope of Stana Ana Mts 610 Comment
  UCR193584  Alnus rhombifolia A. C. Sanders, T. B. Salvato 2008-5-13 35366 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR231346  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39903 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  RSA737481  Aloe saponaria Fred M. Roberts 2008-3-12 6735 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA597728  Alopecurus saccatus D. E. Bramlet 1995-6-10 2435 Orange Fairview Park, City of Costa Mesa., 37 24 490m N, 4 12 360m E. 43 Comment
  UCR197685  Amaranthus A. C. Sanders, Fred M. Roberts 2008-9-18 36063 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR193368  Amaranthus albus A. C. Sanders, T. B. Salvato 2008-5-13 35346 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA562746  Amaranthus albus Steve Boyd, Timothy S. Ross 1992-5-19 7442 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA77264  Amaranthus albus Emily Lombard 1952-8-11 s.n. Orange In orange grove, Irvine. Comment
  JEPS54301  Amaranthus blitoides Lawrence M. Booth 1932-5-12 1030 Orange Newport Bay Comment
  UC536930  Amaranthus blitoides Lawrence M. Booth 1932-5-12 1030 Orange Newport Bay Comment
  UCD97207  Amaranthus blitoides Ira L. Wiggins 1965-10-18 20274 Orange NE corner of Chapman Ave. and Victor Dr. Fullerton. Comment
  UCSB52950  Amaranthus blitoides Roberts, Fred 1983-9-26 Orange Santa Ana Mtns.; Lion Canyon, Chiquito Basin Trail, 3.6 km. NNE Lower San Juan Picnic Ground; 4.0 km SSE Los Pinos Peak 820 Comment
  JEPS54308  Amaranthus hybridus Lawrence M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  UCD97413  Amaranthus hypochondriacus A. R. Roos 1937-12-2 s.n. Orange Santa Ana. Comment
  POM201937  Amaranthus powellii subsp. powellii L. M. Booth 1932-7-21 1295 Orange Anaheim Creek Comment
  CAS-BOT-BC13494  Amblyopappus pusillus Louis C. Wheeler 1932-6-25 859 Orange Newport Bay 3 Comment
  IRVC8602  Amblyopappus pusillus J. B. Anderson 1966-4-16 577 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  JEPS17300  Amblyopappus pusillus L. M. Booth 1932-5-12 1007 Orange Newport Bay Comment
Read comments
Jul 18 2007
  POM5983  Amblyopappus pusillus D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA416883  Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay. 1 Comment
  UCR99550  Amblyopappus pusillus B. G. Pitzer, P. Gomez 1996-4-30 2795 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  IRVC9303  Amblyopappus pusillus B. T. Gittins 1966-4-20 85 Orange Corona del Mar, between Los Cerritos Riding Stable and Cameo Shores; coastal bluffs. Newport Beach Comment
  RSA610217  Amblyopappus pusillus Fred M. Roberts, Julie Vanderwier 1997-4-29 5014 Orange Bolsa Chica Salt Marsh; (US Fish & Wildlife Service cell 60) west of old oil field, 1.1 km. S Chica Survey Mark. 0 Comment
  SEINET6738510 Image available Amblyopappus pusillus L. C. Wheeler 1932-6-25 859 Orange Newport Bay 1 Comment
  UCR261707  Ambrosia acanthicarpa Dick Newell, Don Millar 2014-9-14 384 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Agua Chinon Wash, 0.1 mi. above the 241 Toll Rd./Foothill Transp. Corridor 202 Comment
  UCSB48044  Ambrosia acanthicarpa Roberts, Fred 1981-9-26 Orange Anaheim Bay; Calif. Rte. 1 at southern margin of Naval Weapons Station, 1.7 km. SE McGaugh School; 1.1 km. W Hog Island 1 Comment
  JEPS20090  Ambrosia chamissonis Peter H. Raven 1957-9-28 11370 Orange north limits of Surfside Comment
  RSA643441  Ambrosia chamissonis R. D. Goeden, D. W. Ricker 1970-4-29 s.n. Orange Pacific Coast: Newport Beach, NW edge of town between Seashore Dr., Neptune Ave. 56th and 58th Streets. 2 Comment
  UCR92764  Ambrosia chamissonis F. M. Reed 1933-9-26 8102 Orange South Coast, Arch Beach, near South Laguna 0 Comment
  RSA93931  Ambrosia chamissonis F. W. Peirson 1921-1-9 1320 Orange Balboa Beach. Comment
  RSA264443  Ambrosia chenopodiifolia C. W. Tilforth 1976-10-21 1229 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
  RSA696743  Ambrosia confertiflora Kenneth Beard s.n. Orange Wasteland E. of Placentia. Comment
  RSA184158  Ambrosia psilostachya I. L. Wiggins 1965-10-27 20304 Orange Roadside and along creek bank, just SW of Los Angeles Co. line, on Brea Canyon Rd. Comment
  SD241729  Ambrosia psilostachya T. B. Salvato 2010-9-27 5121 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Drive and Cover Road, beyond the end of Green Lantern Street, overlooking Dana Point Harbor (Dana Point 7.5'Q) 60 Comment
  UC729846  Ambrosia psilostachya Carl B. Wolf 1932-7-7 Orange Bixby Ave., s edge of field, .2 mi w of Hansen Rd, .2 mi w of se corner of ne 40 Bryant Ranch Comment
  RSA753029  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  POM3043  Ammannia robusta I. M. Johnston 1918-9-3 s.n. Orange Laguna Canyon (at the lakes) 107 Comment
  UCR158026  Ammannia robusta Adrian Wolf 1998-5-15 273 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  CDA19010  Ammannia robusta B. Tidwell 2000-8-3 PDR 1223096 Orange Southern California; Douglass Rd., Anaheim. 0 Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  CAS-BOT-BC177257  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  LA204906  Amorpha fruticosa A. H. Longe; 1951-5-10 sn Orange Balboa Comment
  RSA378  Amorpha fruticosa J. T. Howell 1927-6-6 49 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR240112  Amorpha fruticosa Dick Newell, Don Millar 2012-5-22 260 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, 0.4 mi. NE of Irvine Dam spillway 207 Comment
  OBI6061  Amsinckia intermedia Carl B. Wolf 1931-3-6 1864 Orange E side of Orange county Park 152 Comment
  RSA0089448  Amsinckia intermedia A. C. Sanders, Fred M. Roberts 2008-4-8 34755 Orange Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  UC1292600  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR230842  Amsinckia intermedia Dick Newell, Don Millar 2011-3-24 093 Orange South Coast, Huntington Beach, just south of Weider Park, 1.2 mile NE of Seapoint and Pacific Coast Hwy, slope overlooking Bolsa Chica 6 Comment
  RSA0089627  Amsinckia intermedia Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon. Comment
  IRVC205  Amsinckia menziesii var. intermedia McGuire 1965-4-3 Orange Corona del Mar High School Newport Beach Comment
  RSA699139  Anagallis arvensis Effie Jessup s.n. Orange Waste ground Comment
  RSA678725  Andropogon glomeratus Fred M. Roberts, Carol A. Roberts, Robert Allen 2001-8-4 5518 Orange Santa Ana Mountains: San Juan Canyon at confluence with Viejo Cyn., on San Juan Creek below Calif. Rte. 74, 4.0km WnW Sitton Peak., (33 35' 41 N, 117 29' 14 W; T6S,R6W,SE/4 SE/4 Sect. 34) 287 Comment
  UC672439  Anemopsis californica Herbert L. Mason 1926-4-25 2902 Orange near Laguna Comment
  UCR195009  Anemopsis californica A. C. Sanders, Fred M. Roberts 2008-8-7 35986 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  JEPS104670  Anemopsis californica John L. Morrison 1937-6-22 2594 Orange marsh between the road (Hwy 101) and the ocean Comment
  POM202162  Anthemis cotula L. M. Booth 1932-5-15 1200 Orange Santa Ana River, 1/2 miles from ocean Comment
  UCSB48013  Anthemis cotula Roberts, Fred 1980-6-30 Orange Irvine; near east end of Veeh Reservoir at corner of Ridgeroute and Peralta Rd. 92 Comment
  POM354855  Antirrhinum coulterianum M. B. Dunkle 1934-6-18 3995 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA681268  Antirrhinum coulterianum Scott D. White, Michael Honer 2003-5-29 9435 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. Steep, gen. south-facing slopes above trib. to Trampas Canyon, ca. 0.6 air mi. S of Ortega hwy and ca. ca. 0.5 mi west of Trampas Cyn. 122 Comment
  JEPS83328  Antirrhinum kelloggii David M. Thompson 1983-5-11 301 Orange On private road up Williams Canyon, about 0.3 miles up from Santiago Canyon Road. El Toro Quad. (7.5', 1968) 365 Comment
  RSA594818  Antirrhinum kelloggii Fred M. Roberts, Sandra Leatherman, Brian Leatherman 1994-4-24 4912 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  RSA650901  Antirrhinum kelloggii R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  RSA0036640  Antirrhinum multiflorum Robt. Allen, Trish Smith, Mike Kahle 2007-8-11 s.n. Orange Peninsular Ranges; Santa Ana Mountains region: Fremont Canyon, ridge to the east, saddle between Fremont & Black Star Canyon watersheds. Northern terminus of unpaved Lakeview Road. Base of Southern California Edison Tower #33-1 M33T1A. 761 Comment
  UC1280323  Antirrhinum nuttallianum subsp. nuttallianum John M. Tucker 1941-5-30 260 Orange 2-3 mi e western boundary of Cleveland National Forest (at roadside on Ortega Highway) Comment
  RSA542506  Antirrhinum nuttallianum subsp. nuttallianum Fred M. Roberts 1987-4-28 3393 Orange IRVINE: San Joanuin Hills, lateral to Upper Sand CAnyon, 2.3 km SE French Hill. 107 Comment
  JEPS83382  Antirrhinum nuttallianum subsp. subsessile David M. Thompson 1983-5-11 302 Orange about 0.3 mi from Santiago Canyon Road (on private road up Williams Canyon, n of road); El Toro Quad. (7.5', 1968) 396 Comment
  UCR224161  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts 2008-3-19 6784 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  POM183948  Aphanisma blitoides P. A. Munz 1932-3-29 12192 Orange Costa Mesa. Comment
Read comments
Dec 4 2014
  POM202125  Aphanisma blitoides P. A. Munz 1934-3-26 13131 Orange Newport Beach. 22 Comment
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Dec 4 2014
  IRVC20471  Apiastrum angustifolium Fred M. Roberts 1983-5-4 1023 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA699125  Apiastrum angustifolium J. R. Bruff 1927-3-16 22 Orange Newport Bluff Comment
  UCR138386  Apium graveolens Scott D. White, Brian Leatherman 1997-6-12 5314 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA0002591  Apium graveolens var. graveolens F. W. Peirson 1924-5-31 4656 Orange Open Canyon, Laguna Beach. 91 Comment
  POM324025  Aptenia cordifolia Greg Wright 1971-7-17 314 Orange Pacific Coast Highway south of Laguna, Aliso Creek, inland from highway. 8 Comment
  IRVC20647  Arbutus menziesii 1971-4-19 Orange Upper Trabuco Canyon. T.V. St. John Santa Ana Mountains Comment
Read comments
Jan 4 2010
  SEINET10449344  Arctostaphylos catalinae James S. Miller 2001-12-15 Miller 10652 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  LA42394  Arctostaphylos glandulosa W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Trail 1219 Comment
  UCR145821  Arctostaphylos glandulosa June Latting 1973-1-2 s.n. Orange Santa Ana Mountains, Silverado Canyon, 6.3 miles from Silverado Forest Station [presumably up canyon from Silverado] at 'S' curve in road 1220 Comment
  UCR281859  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42699 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 960 Comment
  CAS-BOT-BC23104  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1927-6-26 2603 Orange Claymine Canyon, n. Santa Ana Mts. 457 Comment
  CAS-BOT-BC23111  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz; E. K. Balls 1952-8-19 17924 Orange Summit of Ortega hwy, Santa Ana Mts. 822 Comment
  IRVC1252  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC1255  Arctostaphylos glandulosa subsp. glandulosa A. S. Boughey 1965-3-16 69 Orange Silverado Canyon. Santa Ana Mountains Comment
  RSA629321  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15503 Orange Road to Blue Jay Campground, 1 km south of Hotshot Camp, north of Ortega Hwy. (Hwy. 74). 800 Comment
  RSA629328  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15511 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA629340  Arctostaphylos glandulosa subsp. glandulosa C. J. Fotheringham, Jon E. Keeley 1996-6-24 27640 Orange Ca. 3 km west of Sierra Peak. 700 Comment
  RSA80656  Arctostaphylos glandulosa subsp. glandulosa P. A. Munz, E. K. Balls 1952-8-19 17924 Orange summit of Ortega Hwy. 823 Comment
Read comments
Nov 1 2013
  SD247631  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49708 Orange Northern Santa Ana Mountains; Sierra Peak. 900 Comment
  POM18080  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1973-9-7 7741 Orange Santiago Peak. 1220 Comment
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  SEINET12524586 Image available Arctostaphylos glauca J. Taylor 1963-1 753 Orange Hills above laguna beach. 122 Comment
  SEINET10940290  Arctostaphylos insularis James S. Miller 2001-12-15 Miller 10650 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  UC718382 Image available Arctostaphylos pringlei subsp. drupacea P. C. Everett 1935-6-19 7232 Orange Main Divide Motorway 7 mi from summit of Santiago Peak (se); Santa Ana Mts. 1280 Comment
  SEINET5585509  Arctotheca prostrata R. E. Riefner Jr. 2013-1 13 -125 Orange City of Irvine, Irvine Valley College, Irvine Center Dr. near College St. 37 Comment
  RSA234498  Arctotis venusta James Henrickson 1970-7-25 5091 Orange 2 miles NE of Huntington Beach near north end of Bolsa Chica Salt Marsh. 0 Comment
  RSA659895  Arenaria douglasii Karl Price 1988-5-21 47 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 304 Comment
  RSA542373  Aristida adscensionis Fred M. Roberts, T. Sholars, B. Stechmeyer s.n. Orange Santa Ana Mountains: Hot Sprinngs Canyon. 1.3 kilometers N Highway 74 by road, 0.7 kilometers NW Juan Rancho Survey Mark., UTM 3717900m N, 452700m E 274 Comment
Read comments
Jul 12 2013
  RSA682760  Aristida purpurea Scott D. White, Amanda Duchardt 2003-3-27 8857 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  RSA542562  Aristida purpurea var. parishii Fred M. Roberts 1988-2-18 3796 Orange Lomas de Santiago: lateral to Santiago Wash, 1.4 kilometers NW Santiago Dam spillway., UTM 37 39 400m N, 4 31 700m E. 195 Comment
  RSA663207  Aristida purpurea var. parishii R. E. Riefner 2000-8-3 20 -709 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and Windy Ridge. 534 Comment
  RSA542372  Aristida ternipes var. hamulosa Fred M. Roberts, K. Keane 1988-5-25 3989 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 Comment
  SD52987  Arnica discoidea Peter H. Raven 1962-5-18 17751 Orange 4.8 miles above Gate on Silverado Canyon Truck Trail, Santa Ana Mountains 1064 Comment
  CHSC108498  Artemisia californica R. E. Riefner Jr. 2006-8-25 06 -410 Orange City of Dana Point, Salt Creek Beach Park, vicinity of Dana Strand Rd. and Selva Rd. UTM:11S 0433601E 3702917N. 1 Comment
  CLARK-A1528-5239  Artemisia californica John C. Roos 1937-8-31 2348 Orange San Clemente Comment
  IRVC9384  Artemisia californica B. Gittins 1963-3-8 22 Orange east shore. Newport Beach Comment
  RSA417250  Artemisia californica Marcus E. Jones 1930-3-3 26497 Orange Santa Ana Mountains. Comment
  UC536946  Artemisia californica Lawrence M. Booth 1932-7-27 1327 Orange Newport Bay Comment
  UCR210051  Artemisia californica A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37191 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCSB68454  Artemisia californica Hook, Elizabeth; Tran, Caroline 2006-2-4 Orange Southern Coastal: San Joaquin Marsh; NW bluff edge (Tustin 7.5': 11s -420502E, 3724694N) Comment
  UCR186690  Artemisia douglasiana T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1910 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR193794  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-7-3 35689 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. at hairpin turn/road junction below huge sandstone boulder (visible on Google Earth), 1.2 mi. SE of Walnut Canyon Reservoir 285 Comment
  UCR206790  Artemisia douglasiana A. C. Sanders, Fred M. Roberts 2008-9-18 36075 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  RSA784185  Artemisia dracunculus J. D. Olmsted 1959-8-26 837 Orange Along road south of mouth of Black Star Canyon north of Rock Crushing plant 305 Comment
  UC1119516  Artemisia tridentata subsp. tridentata H. E. Norton 1931-3-28 51 Orange Corona Quadrangle Comment
Read comments
Aug 13 2014
  POM704  Arthrocnemum subterminale I. M. Johnston 1918-9-3 2152 Orange Laguna Beach. 6 Comment
  RSA70038  Arthrocnemum subterminale F. W. Peirson 1924-8-29 5091 Orange Corona Del Mar Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  RSA788913  Arundo donax Fred M. Roberts 2008-9-17 7099 Orange Peninsular Ranges: Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  SEINET10580457  Asclepias eriocarpa Carl B. Wolf 1936-6-17 Wolf s.n. 1936 Orange Santa Ana Mountains, along Ortega Highway, 5.6 mi above San Juan Capistrano 76 Comment
  IRVC19386  Asclepias fascicularis R. L. Allen 1978-8-27 s.n. Orange Laguna Canyon; disturbed area, roadside. San Joaquin Hills? Comment
  RSA184112  Asparagus asparagoides I. L. Wiggins 1965-6-5 20330 Orange Orange grove on N side of Chapman Ave. near Kraemer Rd. Comment
  RSA0022438  Aspidotis californica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49797 Orange Santa Ana Mountains: Trabuco Canyon Comment
  RSA562611  Aster radulinus Steve Boyd, Fred M. Roberts 1992-10-14 7715 Orange Northern Santa Ana Mountains, vicinity of Oak Flats (aka Oat Flats) northeast of the junction of Main Divide Road and Skyline Road, just west of Riverside County line 800 Comment
  CDA10359  Aster subulatus D. G. Kelch 2006-12-9 6 .567 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC25156  Aster subulatus var. ligulatus Fred M. Roberts 1986-9-3 3129 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  IRVC29820  Aster subulatus var. ligulatus Artie Thomas, Mark A. Elvin 2006-9-23 609232 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA5862  Aster subulatus var. ligulatus C. B. Wolf 1932-9-16 4114 Orange San Gabriel River, bordering Los Alamitos Bay 2 Comment
  RSA0127344  Astragalus didymocarpus var. didymocarpus Fred M. Roberts 2016-4-29 8047 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  RSA749637  Astragalus didymocarpus var. didymocarpus D. E. Bramlet 2008-3-31 4135 Orange 282m East Upper Hicks Haul Rd, Trib. to Limestone Cyn. 1km S of Santiago Cyn Rd. 317 Comment
  RSA220982  Astragalus gambelianus E. W. Lathrop 1966-3-23 6102 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA625800  Astragalus gambelianus Scott D. White 1998-4-24 6338 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  IRVC22732  Astragalus trichopodus var. lonchus Fred M. Roberts 1985-5-13 1789 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  HSC14541  Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  CDA23091  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5306 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  UC1980248  Atriplex R. E. Riefner Jr. 2006-10-2 06 -466 Orange City of Lake Forest, N of Portola Pkwy. and immediately W of SR-241 freeway at avocado orchard; vicinity of Tomato Spring. Comment
  UCR281836  Atriplex R. E. Riefner Jr. 2006-10-21 06- 662 Orange South Coast, city of Irvine, MacArthur Blvd, c. 0.2 mile south of Jamboree Road, extendingto along Bonita Creek 12 Comment
  RSA737477  Atriplex R. E. Riefner 2007-10-26 7 -453 Orange City of Laguna Niguel, Laguna Niguel Regional Park, Sulphur Creek Reservoir, near La Paz Rd. and Kings Rd. 62 Comment
  RSA743663  Atriplex R. E. Riefner 2006-9-6 6 -425 Orange City of Newport Beach, Newport Bay, Big Canyon Creek drainage near Back Bay Dr. 9 Comment
  UC1980254  Atriplex amnicola R. E. Riefner Jr. 2006-5-7 06 -180 Orange North end of City of San Clemente, along I-5 Freeway, N side, immediately S of Camino de Estrella exit ramp. Comment
  POM122999  Atriplex argentea Marcus E. Jones 1924-8-29 s.n. Orange Newport Comment
  UC7071  Atriplex argentea var. mohavensis A. J. McClatchie 1896-6-20 Orange Westminster Comment
  POM201897  Atriplex californica L. M. Booth 1932-5-19 1061 Orange Newport Beach Comment
  RSA615542  Atriplex californica Robb Hamilton 1989-7-20 s.n. Orange Newport Beach: along Pacific Coast Hwy just west of jct with Newport Blvd. 0 Comment
  UCSB52924  Atriplex californica Roberts, Jr., Fred 1983-3-10 Orange Dana Point Headlands: south of Dana Strand Rd., south of Dana Strand Beach, 1.0 km. W Dana Point Harbor; 0.9 km. SW Richard Henry Dana School 35 Comment
Read comments
Feb 9 2020
  UC536969  Atriplex canescens Lawrence M. Booth 1932-7-23 1301 Orange Corona del Mar , Corona del Mar (Newport Beach) Comment
  UCR221461  Atriplex canescens Dick Newell, Don Millar, Steve Shinn 2010-9-28 38 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Haul Road (Jeffrey Rd.) 1/2 mile east of Hwy 241 toll road 236 Comment
  IRVC25344  Atriplex canescens subsp. canescens Helen Camp 1988-12-7 12 Orange Aliso Canyon, 2.6km NNE Aliso Peak, Aliso-Wood Canyon Regional Park 37 Comment
  CAS-BOT-BC172636  Atriplex coulteri LeRoy Abrams 1903-4-18 3270 Orange Trabuco Arroyo near Capistrano Comment
  UCR107440  Atriplex glauca B. G. Pitzer, M. Georgiady 1997-4-5 3090 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR130490  Atriplex glauca R. E. Riefner Jr. 2002-5-4 02- 101 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCR203881  Atriplex glauca R. E. Riefner Jr. 2006-3-19 06- 52 Orange South Coast, city of Newport Beach, near Avocado Ave. and San Nicolas Dr., west of MacArthur Blvd. 77 Comment
  RSA743662  Atriplex glauca R. E. Riefner 2006-6-30 6 -334 Orange City of Rancho Santa Margarita, vicinity of Towne Center Dr. and Alton Pkwy. 291 Comment
  RSA708449  Atriplex lentiformis Mark Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UCR154265  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCSB56520  Atriplex lentiformis Johnson, J. 1978-11-8 Orange Irvine; Coyote Canyon Road and Mac Arthur Blvd. intersection Comment
  UCR24117  Atriplex lentiformis subsp. breweri John C. Roos 1937-8-31 2556 Orange South Coast, San Clemente Comment
  RSA743476  Atriplex lentiformis subsp. lentiformis Fred M. Roberts, Carol A. Roberts 2008-9-28 7112 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA33798  Atriplex leucophylla N. C. Cooper 1942-11-9 884 Orange Balboa Comment
  RSA478321  Atriplex leucophylla Ella M. Kennedy 1924-5-14 s.n. Orange Laguna Beach. Comment
  RSA678458  Atriplex leucophylla Valerie Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1117 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR18895  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange South Coast, Doheny Beach 0 Comment
  CAS-BOT-BC180906  Atriplex pacifica I. M. Johnston 1918-5-4 1931 Orange Laguna Beach Comment
  POM219183  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 3 Comment
  RSA478340  Atriplex pacifica L. C. Wheeler 1932-6-25 855 Orange Newport Bay. 2 Comment
  POM201890  Atriplex prostrata L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  RSA232223  Atriplex prostrata James Henrickson 1970-10-3 s.n. Orange 3 miles NE of Huntington Beach just N of Bolsa Chica Salt Marsh. 0 Comment
  CHSC26526  Atriplex rosea James Henrickson 1970-7-25 5068 Orange 2 miles N. of Huntington Beach along dry NE margin of Bolsa Chica Salt Marsh. 0 Comment
  IRVC9295  Atriplex semibaccata B. T. Gittins 1966-6-24 1421 Orange Crescent Beach; coastal bluff. Laguna Beach Comment
  SD133115  Atriplex semibaccata A. C. Sanders 1990-10-6 10192 Orange Newport Bay, North Star County Beach area on the southwest end of the bay, ca. 2.0 km inland of Highway 1. 0 Comment
  SD237407  Atriplex semibaccata T. B. Salvo 2010-9-27 5105 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern., overlooking Dana Point Harbor. 52 Comment
  UC1714443  Atriplex semibaccata P. A. Munz 1934-3-26 13136 Orange edge of salt marsh Newport Beach Newport Beach 4 Comment
  UCR130494  Atriplex semibaccata R. E. Riefner Jr. 2002-5-4 02- 90 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  UCSB44181  Atriplex semibaccata Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  POM279025  Atriplex semibaccata Grant D. Brown 1949-10-9 400 Orange Three Arches, 2 miles S of Laguna Beach on Hwy. Alt. 101. 30 Comment
  POM664  Atriplex semibaccata D. L. Crawford 1915-09 s.n. Orange Huntington Beach. Comment
  RSA5823  Atriplex semibaccata C. B. Wolf 1932-6-28 3799 Orange 100 ft. east of pump house at East End Camp. 9 Comment
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  CAS-BOT-BC176756  Atriplex serenana var. serenana H. M. Hall 1920-10-4 11220 Orange West of Santa Ana Comment
  RSA734916  Atriplex suberecta A. C. Sanders, Fred M. Roberts 2008-6-17 35472 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR154266  Atriplex suberecta Mark A. Elvin 2004-5-2 3424 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA453975  Atriplex watsonii F. R. Fosberg 1931-8-19 7285 Orange Newport Bay. 0 Comment
  POM201894  Atriplex watsonii L. M. Booth 1932-7-21 1299 Orange Anaheim Creek Comment
  IRVC27505  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  IRVC29725  Baccharis douglasii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5256 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  POM17840  Baccharis douglasii Philip A. Munz 1923-9-6 7733 Orange Holy Jim Canyon, Santa Ana Mts 762 Comment
  IRVC18079  Baccharis emoryi Gordon A. Marsh 1980-10-24 Orange Irvine: San Joaquin Frreshwater Marsh, south end, earth dam, pond 4. southern coastal Comment
  POM201806  Baccharis emoryi L. M. Booth s.n. Orange Newport Beach Comment
  POM50723  Baccharis emoryi Helen D. Geis 1902-12-7 519 Orange Santa Ana Comment
  SD135168  Baccharis glutinosa Brian Fink 1992-10-7 Orange Huntington Beach Comment
  RSA741697  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -173 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, power line access road off Lakeview SCE Rd. 470 Comment
  CAS-BOT-BC99441  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange south end of town of San Clemente 15 Comment
  CAS-BOT-BC99446  Baccharis pilularis B. Pitzer; T. Tennant 1997-11-8 3374 Orange Crystal Cove State Park: Pelican Point Area, grassland area between Pacific Coast Hwy & the bike trail 30 Comment
  RSA12829  Baccharis pilularis C. B. Wolf 1934-12-26 6262 Orange Hills and ravines near ocean, S end of town of San Clemente 15 Comment
  RSA699766  Baccharis pilularis Keith E. Hoffmaster 1934-1 s.n. Orange Santa Ana Comment
  RSA703357  Baccharis pilularis Fred M. Roberts, Laura Cohen 2004-2-13 6024 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Shady Canyon tributary to Cristianitos Cyn., 1.34 km NW Sycamore Gate, 0.85 km W of Cristianitos Road. 156 Comment
  RSA719421  Baccharis pilularis Fred M. Roberts, Lee Ann Caranza 2006-10-25 6456 Orange Dana Point Headlands south of Margarite Drive, 0.6km W Marine Institute and 1km SW Cook Sch. 58 Comment
  UCR209677  Baccharis pilularis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37204 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, along SW side of Santiago Canyon Rd. near south edge of Irvine Lake 252 Comment
  IRVC517  Baccharis pilularis subsp. consanguinea A. S. Boughey 163 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  IRVC520  Baccharis pilularis subsp. consanguinea D. DeVault 1965-4-3 Orange Corona del Mar, east bluff at Mar Vista Dr. Newport Beach Comment
  IRVC29726  Baccharis salicifolia Mark A. Elvin, Barry S. Nerhus 2006-11-4 5257 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  UCR102020  Baccharis salicifolia B. G. Pitzer 1997-3-25 3022 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 Comment
  UCR247875  Baccharis salicifolia Fred M. Roberts 2012-9-6 7703 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  UCR240069  Baccharis salicina Dick Newell, Judy Booth 2012-9-26 289 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 3 Comment
  IRVC25221  Bassia hyssopifolia Fred M. Roberts 1986-11-4 3202 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  SBBG47295  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  SBBG47296  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  SD80928  Bassia hyssopifolia James Henrickson 1970-7-24 4953 Orange 1I(c) miles northwest of Huntington Beach along border of Bolsa Chica Salt Marsh at southwest end of Huntington Beach Mesa. 7 Comment
  UCSB48040  Bassia hyssopifolia Roberts, Jr., Fred 1981-9-26 Orange Newport Beach: Pacific Coast Highway, 0.3km W Newport Blvd.; 0.4 km. SE Bench Mark 10 3 Comment
  CAS-BOT-BC75513  Batis maritima A. Davidson M. D. 1907-9-7 s.n. Orange Newport. Comment
  CHSC26476  Batis maritima James Henrickson 1970-7-25 5034 b Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA439754  Batis maritima F. R. Fosberg 1931-8-19 S 5678 Orange Newport Bay. 1 Comment
  UCR240098  Batis maritima Dick Newell 2012-9-29 298 Orange South Coast, Newport Beach, Back Bay Drive at Big Canyon parking area 2 Comment
  RSA30446  Bebbia juncea Elisabeth Norland 1942-7-3 11283 Orange Rancho Santa Ana RR track, 1/4 mile E of entrance Comment
  RSA602112  Bebbia juncea Scott D. White 1997-5-6 5034 Orange Santiago Canyon: ca. 1.5 mi N. of Modjeska Canyon. 'Lomas de Santiago' S178 351 Comment
  UCR192097  Bebbia juncea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35283 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  CAS-BOT-BC106378  Bebbia juncea var. aspera Helen D. Geis 1902-1-1 s.n. Orange Santiago Canyon [Canon] Comment
  CAS-BOT-BC106423  Bebbia juncea var. aspera John Thomas Howell 1927-6-2 2412 Orange Southern Puente Hills in teh Santa Ana Canyon [Canon] 152 Comment
  UC284232  Bebbia juncea var. aspera P. A. Munz 1923-7-8 7326 Orange Santa Ana River Canon Comment
  RSA797475  Berberis pinnata subsp. pinnata R. F. Thorne 1977-11-21 49988 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  IRVC19421  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  UCR190981  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-4-22 34997 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA33597  Bloomeria crocea var. crocea N. C. Cooper 1944-6-4 1343 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA367329  Bloomeria crocea var. crocea N. C. Cooper 1944-6-4 1343 Orange San Juan Canyon, lower camp ground. 457 Comment
  CAS-BOT-BC434509  Boerhavia diffusa E. L. Paddock 1943-6-16 12735 Orange Santa Fe Railroad, Gypsum Station Grounds, just west of crossing east of Gypsum Comment
  CAS-BOT-BC31015  Bolboschoenus maritimus Helen D. Geis 1902-3-1 s.n. Orange Ditch banks, Peat lands. Comment
  SD87778  Bolboschoenus maritimus subsp. paludosus F. W. Peirson 1925-4-12 5749 Orange Laguna Canyon. 106 Comment
  CAS-BOT-BC31390  Bolboschoenus robustus Joseph Andorfer Ewan 1932-7-29 7728 Orange Newport Lagoon Comment
  UC536806  Bolboschoenus robustus Lawrence M. Booth 1932-5-24 1105 Orange Newport Lagoon Comment
  UC712166  Bothriochloa barbinodis Charles B. Fiker 1944-7-7 3139 Orange Trabuco Canyon, on Bill Rochester Ranch Trabuco Canyon Comment
  UCR190974  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts 2008-4-22 35003 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  UCR205990  Bothriochloa barbinodis Adrian Wolf 1997-5-20 009 Orange South Coast, northwest of city of Laguna Beach, 100 ft from Pine Crest Drive reservoir, upslope bank adjacent to the road 152 Comment
  UCSB50629  Bothriochloa barbinodis Roberts, Fred 1982-6-30 Orange Laguna Nigel, Niguel Hill, Pacific Island Dr; 2.0 km SE Aliso Park; 1.3 km E Bench Mark 133 Comment
  SD215371  Bowlesia incana Scott D. White, Noel Davis 1998-4-24 6339 Orange Aliso Creek watershed, east of El Toro Road, just north of junction with Valley Vista Way. Large proposed subdivision called Saddleback Meadow. Near abandoned ranch site. 299 Comment
  RSA0066348  Brassica nigra A. C. Sanders, Fred M. Roberts 2008-3-25 34567 Orange Peninsular Range; Santa Ana Mtns.: Saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake. 405 Comment
  RSA482937  Brassica rapa Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 762 Comment
  CAS-BOT-BC36769  Brassica rapa Ira L. Wiggins 1966-2-12 20427 Orange North side of La Palma Avenue near Harbor Boulevard, Anaheim. Comment
  UCD114852  Brassica rapa Ira L. Wiggins 1966-2-12 20427 Orange N side of La Palma Ave. near Harbor Blvd. Anaheim. Comment
  UCR209360  Brassica tournefortii Fred M. Roberts, D. E. Bramlet 2008-4-1 6839 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 2.6 km northwest of Bee Peak and 3.4 km northeast of Rattlesnake Reservoir Dam, Irvine Ranch Conservancy 375 Comment
  RSA750066  Brickellia californica A. C. Sanders, Fred M. Roberts 2008-9-18 36067 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCSB48079  Brickellia californica Roberts, Fred 1981-11-15 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, across road from entrance to Lower San Juan Picnic Ground 436 Comment
  UCR107850  Brodiaea jolonensis Scott D. White 1998-4-9 6265 Orange UC Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Ave. and the new Fwy (Bonita Canyon) 37 Comment
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  SD241666  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-8 34751 Orange Peninsular Range; Santa Ana Mountains: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Road, above Dripping Springs Loop Road (El Toro 7.5'Q) 456 Comment
  UCR191216  Bromus carinatus A. C. Sanders 2008-4-29 35144 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  RSA184128  Bromus diandrus I. L. Wiggins 1965-9-29 20267 Orange California State College at Fullerton, near entrance to campus. Comment
  RSA385398  Bromus diandrus Barbara Hutchison 1941-5-3 s.n. Orange Los Angeles. Comment
Read comments
Oct 15 2013
  RSA708814  Bromus grandis Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6214 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  CAS-BOT-BC155491  Bromus hordeaceus Ira L. Wiggins 1966-4-22 20614 Orange Shoulder of pavement along Associated Road between Yorba Linda Boulevard and Imperial Highway. Comment
  UCD58824  Bromus hordeaceus B. Pitzer 1996-4-30 2760 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  UCR100463  Bromus hordeaceus B. G. Pitzer 1996-4-30 2760 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR2233  Bromus hordeaceus F. M. Reed 1928-5-10 5884 Orange Laguna Canyon below lakes 91 Comment
  UCR192104  Bromus madritensis A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35306 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR144145  Bromus madritensis subsp. madritensis Scott D. White, Amanda Duchardt 2003-4-10 9014 Orange Santa Ana Mountians Foothills, Ridges and E-facing canyons above Trampas Canyon 152 Comment
  RSA0089221  Bromus madritensis subsp. rubens Fred M. Roberts 2014-4-21 7865 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR192471  Bromus rubens A. C. Sanders, Fred M. Roberts 2008-3-25 34539 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  POM363950  Bromus rubens E. A. McGregor 1966-5-15 s.n. Orange Ortega Highway, between Lake Elsinore and San Juan Capistrano. Comment
  SEINET11675600  Bromus rubens J. F. Bright, Wyman, C. 1933-1 8209 Orange near LaGuna Beach Comment
  RSA0126612  Bromus sterilis Fred M. Roberts 2012-4-27 7538 Orange Lomas de Santiago: Loma Ridge, west of SR 241, tributary to Las Flores Cyn., near East Loma Ridge Road, 1.9 km SW Irvine Lake Park Campground & 1.2 km ESE Orange Co. Emergency Operations Center (Hill 1311). 350 Comment
  RSA625804  Bromus sterilis Scott D. White, Noel Davis 1998-5-21 6548 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33?40.5'N, 117?37'W. 305 Comment
  CDA22568  Bromus tectorum J. B. Anderson 1966-4-19 601 Orange Upper Newport Bay. 0 Comment
  RSA0022428  Bromus tectorum R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49786 Orange Santa Ana Mountains: Trabuco Canyon Comment
  CDA5338  Bupleurum lancifolium Mrs. L. Giddings 1955-6-23 Orange 345 Hawthorne Road, Laguna Beach. 0 Comment
  POM122271  Cakile edentula subsp. edentula Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  UCR42432  Cakile maritima A. C. Sanders 1986-5-31 6525 Orange Southern Coast, Balboa Island at Newport Beach. Dunes at the back edge of the beach, from 6th St. S to the harbor entrance 1 Comment
  UCSB48047  Cakile maritima Roberts, Fred 1981-9-26 Orange Huntington Beach; Calif. Rte. 1, near mouth of Santa Ana River, 0.1 km. N jct. Brookhurst Ave.; 0.1 km. SW Bench Mark 7 2 Comment
  UCR113458  Calandrinia breweri R. E. Riefner Jr. 2000-4-15 20- 374 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running north, but west of Black Star Canyon Rd. at powerline tower 520 Comment
  UCR249903  Calandrinia breweri R. E. Riefner Jr. 2008-3-5 08- 31 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, south of Windy Ridge Road c. 0.5 mi from West Fork of upper Fremont Canyon 508 Comment
  SD234997  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34576 Orange Peninsular Range: Santa Ana Mountains; saddle on ridge near head of Weir Canyon, 5.3 miles ENE of Villa Park, 3.1 mile N of (Santiago Reservoir) Irvine Lake (Black Star Canyon7.5' Q) 405 Comment
  UC1136618  Calandrinia ciliata A. Lewis Mar 1934 344 Orange San Juan Hills Corona Quadrangle Comment
  UCR192501  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-3-25 34548 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC438322  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20522 Orange Along Highway S-18 about 2 mi. E. of El Toro. Comment
  RSA713907  Callistemon citrinus R. E. Riefner Jr. 2005-11-23 5 -773 Orange City of Newport Beach, Upper Newport Bay, E of Jamboree Rd and S of Bayview Way at Bonita Creek channel. 6 Comment
  CAS-BOT-BC132256  Calochortus catalinae Agnes M. Bowman 1899-5-1 s.n. Orange Santiago Cr. Comment
  HSC15349  Calochortus catalinae S. M. Clapp 1966-4-3 1 Orange 1.0 mi. N of Orange County-Olinda Dump 61 Comment
  RSA732080  Calochortus catalinae A. C. Sanders, Fred M. Roberts 2008-3-25 34549 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA750699  Calochortus catalinae D. E. Bramlet 2008-3-26 4124 Orange Bee Cyn. Bowerman landfill site. 148 m S of the Bee Cyn Access Road, 296 m W of the landfill entrance. Comment
  RSA769608  Calochortus catalinae E. W. Lathrop 1966-5-23 6098 Orange 4 miles northeast of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District Comment
  RSA773558  Calochortus catalinae Fred M. Roberts 2008-6-3 7026 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.3 km ENE of Rattlesnake Reservoir spillway and 2.2 km ENE Bee Peak 217 Comment
  UCR207998  Calochortus catalinae Mark A. Elvin 1995-1 04 Orange Santa Ana Mtns., Starr Ranch, National Audubon Society; west side of Bell Creek, junction of Leslie Love Trail 213 Comment
  RSA0108729  Calochortus catalinae J. T. Howell 1928-3-17 863 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA679224  Calochortus invenustus Fred M. Roberts 2003-6-25 5946 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA68633  Calochortus splendens Frank W. Peirson 1924-5-31 4669 Orange 5 miles southeast of Laguna Beach. Comment
  CAS-BOT-BC492700  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest Comment
  IRVC2494  Calochortus splendens Pat McClellan 1965-5-1 s.n. Orange Coast Highway. Southern Coastal Comment
  CAS-BOT-BC132659  Calochortus weedii var. intermedius H. F. Copeland 1938-6-29 1574 Orange Hills back of Laguna Beach Comment
  RSA581433  Calochortus weedii var. intermedius Fred M. Roberts 1989-6-7 4376 Orange Santa Ana Mountains: Upper Gypsum Canyon along divide between Gypsum and Blind Canyon, 6.3 kilometers WSW Sierra Peak. 411 Comment
  RSA588984  Calochortus weedii var. intermedius D. E. Bramlet 1994-6-2 2382 Orange San Joaquin Hills. Emerald Canyon 1.2 km. north of Pacific Coast hwy. In the lower portion of the canyon 150 m W of the existing access road. 92 Comment
  RSA649683  Calochortus weedii var. intermedius R. E. Riefner 2000-6-26 20 -580 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. Comment
  RSA699753  Calochortus weedii var. intermedius Fred M. Roberts, David E. Bramlet 2003-6-6 5884 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.7km SW int. Cristianitos and TRW Rds. and 0.23km W of SDG&E substation. 119 Comment
  RSA734897  Calochortus weedii var. intermedius A. C. Sanders, Joshua M. Brokaw 2008-5-28 35427 Orange Peninsular Range; Santa Ana Mtns.: upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir. 372 Comment
  CDA25245  Calycadenia tenella A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35323 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, 0.3 mile west of Eastern Transportation Corridor (Highway 241) and 1.45 miles east of south end of Walnut Canyon Reservoir. Comment
  RSA587889  Calycadenia tenella Fred M. Roberts 1990-5-7 4610 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA649679  Calycadenia tenella R. E. Riefner 2000-5-6 20 -444 Orange NCCP North Ranch Policy Plan Area: NE property; along powerline on National Forest boundary. 582 Comment
  RSA734022  Calystegia macrostegia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34616 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  CAS-BOT-BC215766  Calystegia macrostegia subsp. arida Le Roy Abrams 1901-6-14 1800 Orange Trabuco Canyon Comment
  RSA650822  Calystegia macrostegia subsp. arida Daniel Truong 1991-5-13 17 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UCR7767  Calystegia macrostegia subsp. cyclostegia Art Dawson 1968-5-4 s.n. Orange South Coast/Santa Ana Mtns. Foothills, Rancho Mission Viejo, Ortega Hwy near San Juan Capistrano, 0.5 mi. east of Gobernadora Canyon 91 Comment
  IRVC980  Calystegia sepium subsp. sepium J. Pierce 1965-4-17 Orange Laguna Canyon. Laguna Beach Comment
  RSA678451  Calystegia soldanella Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1114 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR193261  Camissonia A. C. Sanders, Fred M. Roberts 2008-6-17 35521 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  SEINET7073418  Camissonia bistorta A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA497  Camissonia californica J. T. Howell 1927-6-26 213 Orange Claymine Canyon near Sierra Peak. 244 Comment
  RSA585184  Camissonia cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-27 17699 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  HSC79101  Camissonia cheiranthifolia subsp. suffruticosa Janice Ragsdale 1972-5-1 52 Orange Newport Beach, 10 mi. SW of Back Bay Rd. on Jamboree Rd. 61 Comment
  RSA13899  Camissonia cheiranthifolia subsp. suffruticosa Dorothy R. Wolf 1934-4-29 s.n. Orange Corona del Mar (Newport Bay) Comment
  RSA539379  Camissonia hirtella Fred M. Roberts, C. A. Roberts 1988-6-2 4036 Orange Santa Ana Mountains: Silverado Canyon. Maple Springs Truck trail. 4.3 km above gate, 1.0 km WSW Bald Peak. 817 Comment
  RSA683166  Camissonia intermedia Scott D. White, Amanda Duchardt 2003-4-10 9018 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA609006  Camissonia lewisii L. M. Booth 1932-5-12 1034 Orange Newport Beach. Comment
  UCR267215  Camissonia micrantha Fred M. Roberts, Lee Ann Caranza 2009-4-7 7143 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.5 km WNW Dana Point Marine Institute at Dana Point Harbor, near Interpretive Center 70 Comment
  UCR209364  Camissonia robusta Fred M. Roberts, Linda Farley 2008-3-28 6830 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  SDSU3403  Camissonia strigulosa H. Wedberg 1958-3-29 179 Orange On Hwy 74, about 5.6 miles NE from the mission in San Juan Capistrano Comment
  SEINET5344150  Camissoniopsis cheiranthifolia N. J. Hartke 1953-4-2 12 Orange Balboa Beach Comment
  LA206063  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Norman C. Cooper; 1944-6-3 1326 Orange Balboa Beach Comment
  CAS-BOT-BC160453  Camissoniopsis cheiranthifolia subsp. suffruticosa David D. Keck 1933-9-21 2523 Orange Sunset Beach Comment
  UC942887  Camissoniopsis cheiranthifolia subsp. suffruticosa Lewis S. Rose 1949-4-14 49049 Orange Sunset Beach Comment
  UCSB48058  Camissoniopsis cheiranthifolia subsp. suffruticosa Roberts, Fred 1982-4-3 Orange Dana Point Headlands, north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  RSA0127614  Camissoniopsis intermedia Fred M. Roberts 2016-4-26 8045 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  SD181434  Camissoniopsis micrantha Valerie Soza, Kevin Clark, et al. 2001-4-4 1125 Orange Seal Beach, U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  CAS-BOT-BC37125  Capsella bursa-pastoris Ira L. Wiggins 1966-2-5 20422 Orange Fairgrounds, Costa Mesa. Comment
  POM369330  Cardamine californica var. integrifolia M. B. Dunkle 1933-3-5 3096 Orange San Juan Canyon, Comment
  RSA752304  Cardionema ramosissimum Fred M. Roberts, Eliza Maher 2008-3-26 6794 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR215305  Cardionema ramosissimum Fred M. Roberts, Eliza L. Maher 2008-3-26 6794 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of Marine Institute, Dana Point Harbor 60 Comment
  CSUSB712  Cardionema ramosissimum Barbara T. Gittins, Oscar F. Clarke 1966-3-19 Orange Newport Beach. Coastal foothills, Irvine Ranch, east of University of California at Irvine. Comment
  CAS-BOT-BC281701  Carduus pycnocephalus Scott D. White; Brian Leatherman 1997-6-12 5330 Orange Santa Ana Mountain foothills. E of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca 2-4 miles E of I-15/Highway 74 jtn 75 Comment
  UCSB48219  Carduus pycnocephalus Roberts, Fred 1981-6-20 Orange Dana Point; 0.7 km. NNE Dana Hills High School 67 Comment
  RSA581446  Carex alma Fred M. Roberts, Gordon Marsh 1989-5-12 4366 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  UCR193807  Carex pellita A. C. Sanders, Fred M. Roberts 2008-7-16 35860 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  CAS-BOT-BC118489  Carex praegracilis Helen D. Geis 1902-4-1 504 Orange Unspecified Comment
  CAS-BOT-BC118498  Carex praegracilis Helen D. Geis 1902-1-1 505 Orange Near Santa Ana Comment
  RSA76  Carex praegracilis J. T. Howell 1928-4-7 904 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR242118  Carex praegracilis D. E. Bramlet 1983-5-14 1377 Orange Peninsular Range, Santa Ana Mountains, Chiquito Basin 884 Comment
  SEINET8068417 Image available Carex praegracilis H. D. Geis 1902-1 s.n. Orange Orange County Comment
  RSA581445  Carex spissa Fred M. Roberts, Gordon Marsh 1989-5-12 4365 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 kilometers WSW Laurel Springs. 436 Comment
  RSA797395  Carex spissa Keith E. Hoffmaster 1934-7-15 s.n. Orange Santa Ana Mts (Modjeska) Comment
  SEINET10874602  Carpobrotus aequilaterus David B. Dunn 1971-8-13 Dunn 18123 Orange Cultivated plants vicinity of Laguna Beach. Comment
  UCR204231  Carpobrotus chilensis Valerie Soza, LeRoy Gross, Kevin Clark, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1106 Orange South Coast, Seal Beach National Wildlife Refuge, Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226) 3 Comment
  RSA113270  Carpobrotus chilensis E. K. Balls 1955-4-4 20418 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  RSA420738  Castilleja Albert J. Perkins 1913-2-13 s.n. Orange Peralta. Comment
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Jun 16 2012
  RSA542505  Castilleja affinis Fred M. Roberts 1987-3-31 3297 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout. 350 Comment
  RSA588797  Castilleja affinis Fred M. Roberts, Dave Bontrager 1990-4-18 4563 Orange Rancho Mission Viejo: ridge between Christanitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  RSA732253  Castilleja exserta A. C. Sanders, Fred M. Roberts 2008-4-22 35039 Orange Lomas de Santiago, valley at south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado, above spring shown on topo map. 427 Comment
  UC1287152  Castilleja exserta C. L. Hitchcock 1966-3-15 24134 Orange 0.5 mi e Brea Comment
  UC1552001  Castilleja exserta Lyman Benson 1946-4-27 12052 Orange Corona del Mar; Ocean Bluff 15 Comment
  UC673435  Castilleja exserta subsp. exserta Herbert L. Mason 1926-4-25 2935 Orange 5 mi s Laguna Comment
  UC718040  Castilleja exserta subsp. exserta P. C. Everett 1935-4-27 Orange 1 mi w Atwood (Jack Johnson property) 152 Comment
  UC1081507  Castilleja foliolosa H. L. Mason 1925-4-25 2904 Orange 5 mi s Laguna Comment
  UCR175052  Castilleja foliolosa Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  RSA450839  Castilleja foliolosa J. B. Anderson 1966-3-7 419 Orange San Joaquin Hills. Near bottom of Moro Canyon. 91 Comment
  RSA733939  Ceanothus crassifolius R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  SD247715  Ceanothus crassifolius R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  SBBG104029  Ceanothus crassifolius var. crassifolius B. Pitzer, S. Hemstreet 1992-5-21 1949 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and to the left ca. 0.1 mi on old paved rd 762 Comment
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC718385  Ceanothus integerrimus P. C. Everett 1935-6-18 7214 Orange Summit of Santiago Pk. Santa Ana Mts. 1731 Comment
  RSA678517  Ceanothus integerrimus var. puberulus Fred M. Roberts, Kirsten Winter, Leanne Naue 1997-6-5 5040 Orange Santa Ana Mtns,: Santiago Peak, Main Divide Truck Trail at Orange-Riverside County line, 0.5km N summit. 1659 Comment
  RSA659543  Ceanothus leucodermis P. Shirokawa 1998-5-7 19 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  UC1070860  Ceanothus leucodermis A. Lewis Mar 1934 371 Orange Mojeska Peak Corona quad., Cleveland National Forest 1524 Comment
  LA93870  Ceanothus megacarpus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  RSA734968  Ceanothus megacarpus A. C. Sanders, Fred M. Roberts, A. O'Neal, D. E. Bramlet 2008-5-9 35301 Orange Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR159779  Ceanothus megacarpus subsp. megacarpus Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  RSA12928  Ceanothus oliganthus Carl B. Wolf 1935-4-7 6318 Orange San Juan Canyon, Ortega Hwy, 2 miles east Orange County. 762 Comment
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Oct 7 2013
  RSA25850  Ceanothus oliganthus Carl B. Wolf 1941-8-15 11157 Orange Along the Main Divide Motorway, just N. of head of Trabuco Truck Trail. 1220 Comment
  CAS-BOT-BC51847  Ceanothus papillosus Stark 1933-1-5 10029 Orange 2 mi. S. of summit of Skyline Dr. along rd. to Santiago peak, Santa Anna Mts. 1219 Comment
  IRVC28204  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  HSC46608  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 5598 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line) 1220 Comment
  RSA399812  Ceanothus papillosus var. roweanus Christopher Davidson 1977-5-18 8898 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  RSA16580  Ceanothus spinosus Percy C. Everett 1935-6-19 7241 Orange Trabuco Canyon, 0.8mi below (W) forest service patrol station 488 Comment
  RSA637494  Ceanothus spinosus Valerie L. Soza, LeRoy Gross 1999-6-8 503 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  SDSU10426  Ceanothus spinosus D. F. Howe 1947-4-4 1545 Orange Santa Ana Mtns. Comment
  UC1071372  Ceanothus spinosus A. Lewis Apr 1934 383 Orange Santiago Canyon Cleveland National Forest, Corona Quad. Comment
  PASA2518  Ceanothus tomentosus Frank W. Peirson 1922-5-19 Orange Small canyon heading eastward from the Santa Ana Canyon at 400 ft. Comment
  UC1281278  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange w Covina; Santa Ana Mountains, w of Covina Comment
  RSA1445  Ceanothus tomentosus var. olivaceus J. T. Howell 1929-2-11 1224 Orange trail from [Claymine] Canyon to Sierra Peak, Santa Ana Mts. 335 Comment
  RSA731001  Cedrus deodara Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6504 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  SD143577  Centaurea melitensis R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 75 Comment
  RSA721128  Centaurea melitensis Kenneth Beard s.n. Orange East of S. A. River on Edinger Road Comment
  UCR93176  Centaurea repens Jan West 1994-9-15 s.n. Orange Irvine, Jamboree Rd. 61 Comment
  CDA7331  Centaurea solstitialis T. C. Fuller 1962-6-7 8870 Orange Fullerton Golf Course. Fullerton 0 Comment
  RSA551  Centaurium venustum J. T. Howell 1927-6-2 15 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCD20136  Centromadia parryi subsp. australis Donald W. Kyhos 1962-9-23 62- 225 Orange Along Pacific Coast Highway and Balboa Drive, about 1 mile south of Los Angeles- Orange County line. Comment
  IRVC22187  Cerastium fontanum subsp. vulgare Fred M. Roberts 1985-4-11 1646 Orange Dana Point Headlands; Weyerhaeuser Horticultural Research Station property. Southern Coastal 61 Comment
  RSA680733  Cerastium glomeratum Scott D. White 2003-3-21 8811 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR221892  Cercocarpus betuloides Dick Newell, Don Millar 2010-10-15 40 Orange South Coast, San Joaquin Hills, Laguna Wilderness parkm on the Willow Trail 220 Comment
  UC1234770  Cercocarpus betuloides var. betuloides Peter H. Raven 1962-5-18 17753 Orange about 1 mi n of Santiago Peak (Main Divide Truck Trail); Santa Ana Mountains, Main Divide Truck Trail 1493 Comment
  RSA528042  Cestrum nocturnum A. C. Sanders 1990-10-6 10187 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  SD225727  Chaenactis artemisiifolia R. K. Brummitt 1998-5-23 19996 Orange 22 km NE of San Juan Capistrano on Rte. 74; dry roadisde in rocky canyon 299 Comment
  IRVC588  Chaenactis fremontii B. Mawdsley 1965-4-4 Orange Corona del Mar. Newport Beach Comment
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Dec 20 2006
  UC149240  Chaenactis glabriuscula var. glabriuscula LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  CAS-BOT-BC284202  Chaenactis glabriuscula var. lanosa LeRoy Abrams 1903-4-13 3254 Orange Buena Park Comment
  IRVC29873  Chamaesyce Mark A. Elvin, D. Kelch 2006-12-9 5301 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
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Jul 17 2015
  RSA542539  Chamaesyce polycarpa var. polycarpa Fred M. Roberts, Dar A. Roberts 1989-3-22 4221 Orange Aliso-Wood Canyons Regional Park: Wood Canyon, 3.6 km S Moulton Peak. 43 Comment
  RSA70402  Chamaesyce serpillifolia F. W. Peirson 1924-10-19 5236 Orange Wintersberg Comment
  UCR141343  Chasmanthe aethiopica Robert DeRuff 1999-1 515 Orange Southern Coast, Newport Beach, Newport Back Bay, bluff below Eastbluff North, c. a third of the way down from the bluff top 6 Comment
  RSA685783  Cheilanthes newberryi M. B. Dunkle 1934-6-18 3981 Orange San Juan Canyon; Southern Coastal 305 Comment
  IRVC14987  Chenopodium album Anonymous 1976-10-28 Orange Nieblas School. Fountain Valley Comment
  POM6868  Chenopodium ambrosioides P. A. Munz 1919-2-15 2281 Orange Montebello, along Rio Hondo. Comment
  RSA423411  Chenopodium ambrosioides Albert J. Perkins 1923-6-17 s.n. Orange Sycamore St., Santa Ana. Comment
  RSA64759  Chenopodium ambrosioides var. ambrosioides F. W. Peirson 1924-8-29 5079 Orange 6 miles from Balboa on road inland along creek. Comment
  UCR73179  Chenopodium berlandieri Scott D. White 1992-9-23 858 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  SD136861  Chenopodium berlandieri Steve Boyd, Tim Ross 1994-9-14 8362 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  RSA234491  Chenopodium berlandieri var. sinuatum James Henrickson 1970-8-29 5304 Orange 3 miles NW of Huntington Beach; north end of Bolsa Chica Marsh near pasture. 0 Comment
  IRVC22549  Chenopodium californicum Fred M. Roberts 1985-5-1 1705 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  RSA678739  Chenopodium californicum Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5856 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive 76 Comment
  CDA35060  Chenopodium chenopodioides Mark A. Elvin, B. S. Nerhus 2006-11-4 5249 Orange Southern Coastal; Huntington Beach; 1.5 km southwest of Wintersburg, southwest of junction Slater and Goldenwest; Shipley Nature Center. Comment
  UCR27598  Chenopodium macrospermum John C. Roos 1949-10-1 4681 Orange South Coast, Doheny Beach 0 Comment
  RSA48861  Chenopodium macrospermum var. farinosum J. C. Roos 1949-10-1 4681 Orange Doheney Beach. [Now Capistrano Beach] Comment
  RSA752040  Chenopodium murale Fred M. Roberts 2008-3-27 6808 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  RSA573428  Chenopodium murale Steve Boyd, Timothy S. Ross 1994-9-14 8347 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  CAS-BOT-BC497716  Chlorogalum pomeridianum Le Roy Abrams 1901-6-1 1782 Orange Laguna Comment
  RSA0004893  Chorizanthe chrysacantha P. A. Munz, R. D. Harwood 1920-4-17 3775 Orange Laguna Beach. Bluffs along coast Comment
  RSA16337  Chorizanthe fimbriata Percy C. Everett 1935-6-18 7197 Orange Santa Ana Mountains, Main Divide Motorway Los Pinos Potrero. 915 Comment
  RSA562821  Chorizanthe fimbriata Steve Boyd, Tim S. Ross 1992-5-20 7474 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  CAS-BOT-BC191253  Chorizanthe fimbriata var. fimbriata P. C. Everett 1935-6-18 7197 Orange Santa Ana Mts., main divide motorway Los Pinos Potrero 914 Comment
  RSA588980  Chorizanthe procumbens D. E. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. ''Pass area'' between Little Sycamore and Camarillo Canyons. The site is 945m of Camarillo Canyon Road and 5 m west of the existing dirt road. 122 Comment
  RSA743372  Chorizanthe procumbens Fred M. Roberts 2008-4-2 6842 Orange Dana Point: Dana Point Headlands, CNLM Preserve south of NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 45 Comment
  UC1952562  Chorizanthe procumbens D. Bramlet 1994-6-23 2388 Orange San Joaquin Hills. Pass area between Little Sycamore and Camarillo Canyons. The site is 945 m north of Camarillo Canyon and 213 m west of Laguna Canyon Road and 5 m west of the existing dirt road. Comment
  CAS-BOT-BC255253  Chorizanthe staticoides H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA13173  Chorizanthe staticoides Percy C. Everett 1935-4-29 6711 Orange 7/10 of a mile west of Esperanza, Santa Ana canyon.. 152 Comment
  RSA392684  Chorizanthe staticoides Louis C. Wheeler 1932-6-25 856 Orange Newport Bay. 3 Comment
  RSA392687  Chorizanthe staticoides M. B. Dunkle 1938-6-23 5378 Orange San Juan Canyon. Comment
  RSA584709  Chorizanthe staticoides Fred M. Roberts, Scott Wade 1989-6-21 4390 Orange San Joaquin Hills: Pelican Hill, c.a. 0.4km ESE summit. 194 Comment
  RSA698367  Chorizanthe staticoides Kenneth Beard s.n. Orange East of Irvine Park. Comment
  RSA739342  Chorizanthe staticoides Keith E. Hoffmaster 1934-4-22 297 Orange Santa Ana Mountains Comment
  UC1618108  Chorizanthe staticoides Donald G. Nelson 1936-6-5 433 Orange Hills NE of Fullerton 91 Comment
  UCR266321  Chorizanthe staticoides D. E. Bramlet 1991-5-21 3061 Orange South Coast, Dana Point region 122 Comment
  RSA0004910  Chorizanthe staticoides var. elata P. A. Munz 1923-6-14 7085 Orange Glen dry trail to Santiago Peak , Santa Ana Mountains, dry ridge in chaparral belt. 1463 Comment
  CAS-BOT-BC502068  Chrysanthemoides monilifera R. E. Riefner, Jr. 2012-2-23 12 -44 Orange City of Laguna Beach, S of Goff Island, Montage Resort, Treasure Island Park, W of Pacific Coast Hwy 7 Comment
  UCR130353  Chrysanthemoides monilifera A. C. Sanders, Mark A. Elvin 2003-10-12 27324 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  IRVC27493  Chrysanthemum coronarium Mark A. Elvin 2004-5-2 3407 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA97387  Cicuta bolanderi Joseph A. Ewan 1932-7-29 7729 Orange Large colony (plants 4-8 ft.) in backwater of marsh. Newport Lagoon Comment
  RSA0066515  Cirsium californicum R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  RSA721121  Cirsium occidentale Anonymous s.n. Orange Lower Trabuco. Comment
  UCR190970  Cirsium occidentale A. C. Sanders, Fred M. Roberts 2008-4-22 35052 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  POM352203  Cirsium occidentale var. californicum M. B. Dunkle 1933-5-30 3580 Orange Santa Ana Canyon. Comment
  UCR281520  Cirsium occidentale var. californicum Mitch Provance 2017-6-9 617- 93 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  SEINET5507045 Image available Cirsium occidentale var. coulteri A. M. Johnson 1932-4-23 4034 Orange NE corner 3-4 mi SE of Yorba Linda along Santa Ana River; Santa Ana Canyon Comment
  POM352202  Cirsium occidentale var. occidentale M. B. Dunkle 1933-5-30 3582 Orange Santa Ana Canyon Comment
  RSA788908  Cirsium occidentale var. occidentale Fred M. Roberts 2008-6-26 7060 Orange Lomas de Santiago: Loma Ridge along West Loma Ridge Road, c.a. 1 km N Haul Rd., 2.5 km NNW Bee Peak, Irvine Ranch Land Conservancy. 382 Comment
  RSA752816  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA737488  Cistanthe monandra D. E. Bramlet 2008-5-16 4277 Orange Agua Chinon Wash. Site is located in an ephemeral tributary 91m NW of the access road and 1.74km NE of Hwy 241 274 Comment
  RSA637490  Clarkia purpurea subsp. quadrivulnera Valerie L. Soza, LeRoy Gross 1999-6-8 507 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA789218  Clarkia purpurea subsp. quadrivulnera Naomi S. Fraga, Duncan S. Bell 2009-5-11 2724 Orange Chiquita Trail 762 Comment
  UCR220083  Claytonia parviflora Dick Newell, Don Millar 2010-3-2 005 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. 50 m SE of Sandtrap cutoff, 0.2 mi. west of Santiago Canyon Rd. 294 Comment
  HSC17702  Claytonia perfoliata subsp. mexicana S. M. Clapp 1966-4-10 35 Orange 10 mi. into Silverado Canyon 183 Comment
  RSA610242  Claytonia perfoliata subsp. mexicana Fred M. Roberts, Tony Bomkamp 1997-3-13 4985 Orange RANCHO MISSION VIEJO: Christianitos Canyon near confluence of Gabino Canyon, 5.1km NE Clemente Survey Mark. 85 Comment
  UCD169739  Clematis lasiantha R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49689 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA297  Clematis ligusticifolia J. T. Howell 1927-4-13 622 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR103287  Clematis ligusticifolia B. G. Pitzer, T. Tennant 1997-11-8 3366 Orange San Joaquin Hills, Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 85 Comment
  UCSB48083  Clematis pauciflora Roberts, Fred 1981-4-12 Orange Santa Ana; San Juan Canyon, Hwy 74 2.0km by road SW San Juan Guard Station; 2.7km SW Juan Rancho Survey Mark 210 Comment
  RSA602641  Cleome isomeris B. Pitzer 1996-4-30 2796 Orange San Joaquin Hills Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 15 Comment
  POM49164  Cneoridium dumosum I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  RSA449088  Cneoridium dumosum Unspecified s.n. Orange Laguna Beach. Comment
  RSA542395  Cneoridium dumosum Fred M. Roberts Jr. 1987-3-24 3271 Orange Laguna Beach: Goff Ridge, south of Nyes Place Rd., 0.9km NNE Goff Island. 169 Comment
  LA208484  Cneoridium dumosum B. Lower; 1954-4-3 Orange Dry hill behind Laguna Comment
  RSA699998  Collinsia bicolor L. C. Hull 1934-4-15 s.n. Orange Laguna Hills Comment
  SEINET1908696  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-1 35026 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  UCR191230  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-4-22 35026 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA0018459  Collinsia heterophylla J. D. Olmsted 1959-5-1 532 Orange 100 yrds NW of Rattlesnake Rock. 0.75 mi N of Hidden Ranch in Black Star Canyon. 4-5 mi E of Irvine Lake Reservoir. Drainage area to Santa Ana River. 732 Comment
  RSA564111  Collinsia heterophylla var. austromontana B. Pitzer, S. Hemstreet 1992-5-27 1954 Orange Cleveland National Forest. Along road (3S04) to Blue Jay Group Campground, off State Hwy 74 (Ortega Hwy). Approx. 2 mi. (airline) W of El Cariso Campground. 762 Comment
  UCSB48373  Conium maculatum Roberts, Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  IRVC968  Convolvulus arvensis E. McRae 1965-4-3 Orange Costa Mesa Comment
  IRVC970  Convolvulus arvensis R. Hobson 1965-4-10 Orange Santa Ana Heights, 2431 Mesa Dr. Southern Coastal Comment
  OBI7980  Convolvulus arvensis Kurt R. Neisess 1975-12-20 s.n. Orange In the Fullerton Hills area Comment
  RSA394801  Convolvulus arvensis Josephine Derigo 1941-7-13 20412 Orange Anaheim Comment
  RSA653183  Convolvulus arvensis David Barrios 1991-5-1 16 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle., (117 deg. 45' 00'' +4 28 / 33 deg. 52' 37'' + 37 51.5). 365 Comment
  POM312786  Convolvulus arvensis D. Taylor 1952-10 327 Orange South of Chino near C I M Comment
  UCSB6907  Convolvulus arvensis Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach Comment
  RSA38434  Convolvulus simulans E. L. Paddock 1943-5-3 s.n. Orange Graham & Loftus Oil Corp., 1 mile E of Brea Comment
  RSA687516  Convolvulus simulans Fred M. Roberts, D. E. Bramlet 2003-4-10 5652 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridge between Cristianitos Canyon, 1.17 km SW Gato Gate and 1.02 km W Cristianitos Road. 175 Comment
  CAS-BOT-BC286163  Conyza canadensis Ira L. Wiggins 1966-2-1 20408 Orange Just E. of Letters & Science Building, California State College at Fullerton Comment
  IRVC29827  Conyza canadensis Tom McCrainie, Mark A. Elvin 2006-9-23 1 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  IRVC23904  Conyza coulteri Fred M. Roberts 1985-8-19 2127 Orange Mission Viejo: lateral to Engilish Canyon along Vista de Lago Drive; 3.4km ENE El Toro Fire Station. Southern Coastal 218 Comment
  IRVC24188  Conyza coulteri Fred M. Roberts 1985-9-17 2264 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  CHSC22354  Cordylanthus maritimus Robert A. Schlising 1972-5-1 3017 Orange Upper Newport Bay, east of Costa Mesa; saltmarsh along Bayside Drive. Comment
  UC1536009  Cordylanthus maritimus subsp. maritimus C. W. Tilforth 1975-9-3 1040 Orange ne shoreline Upper Bay (both above and below high water mark); Newport Beach Comment
  UCR193827  Cordylanthus rigidus A. C. Sanders, Fred M. Roberts 2008-7-16 35852 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  SFV10455  Cordylanthus rigidus subsp. setigerus M. L. Vincent 1963-7-8 432 Orange 4 miles east of San Juan Capistrano. Comment
  UCR239652  Coreopsis gigantea Fred M. Roberts 2012-5-4 7546 Orange San Joaquin Hills, Buck Gully, along San Joaquin Hills Road, just west of Harbor Watch Park, 2.9 km west of Signal Peak 174 Comment
  UCR195010  Coreopsis tinctoria A. C. Sanders, Fred M. Roberts 2008-8-7 35981 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  CAS-BOT-BC101295  Corethrogyne filaginifolia David D. Keck 1932-9-30 1908 Orange Dana Point, near San Juan Capistrano Comment
  HSC5418  Corethrogyne filaginifolia J. W. Johnson 1961-2-19 Orange Newport Beach, marine terrace above upper Newport Bay. Comment
  POM4589  Corethrogyne filaginifolia D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  SEINET11843910  Corethrogyne filaginifolia var. virgata S. A. Thompson, Rawlins, J. E. 1988-1 5265 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  IRVC24510  Coronopus didymus Fred M. Roberts 1986-3-14 2647 Orange University of California campus, south side of Alderich Park near Engineering Building, Irvine 33 Comment
  UCR100456  Coronopus didymus B. G. Pitzer 1996-4-30 2767 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR102007  Coronopus didymus B. G. Pitzer 1997-3-25 3032 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  IRVC24483  Cortaderia selloana Fred M. Roberts, G. A. Marsh 1986-2-28 2603 Orange Lateral to English Canyon along Vista Del Lago; 3.4km ENE El Toro Fire Station, in ravine at base of north-facing slope. Mission Viejo 236 Comment
  RSA735026  Cotula australis Scott D. White, Justin M. Wood 2008-4-10 11846 Orange Chino Hills: Powerline access road just N of CHSP boundary and just W of Orange/SB co. line. Approx. 1 mi. NW of Gilman Peak. 366 Comment
  UCSB52470  Cotula australis Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff above Dana Point Harbor, south of old Cove Rd.; 0.8 km. S Richard Henry Dana School 60 Comment
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Jan 25 2020
  CHSC30401  Cotula coronopifolia Diane H. Ikeda 1980-4-5 222 Orange Upper Newport Back Bay Ecological Reserve, 0.3 mi s of intersection of Back Bay Drive and San Joaquin Rd. on Back Bay Drive. 1 Comment
  CAS-BOT-BC291358  Cotula coronopifolia C. W. Tilforth; John Dourley 1969-4-22 184 Orange San Clemente Comment
  JEPS37550  Cotula coronopifolia Alice King April 1908 Orange Santa Ana River Comment
  UC1930991  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 -407 Orange South Coast: Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. Comment
  CAS-BOT-BC427769  Crassula connata Carl B. Wolf 1932-3-8 2673 Orange 1/2 mi. No. of Corona Del Mar. Borders of Newport Bay. 7 Comment
  OBI5823  Crassula connata Carl B. Wolf 1931-3-6 1844 Orange 1/2 mi above Trabuco Oaks, Trabuco Cyn, W slope Santa Ana Mts 457 Comment
  JEPS43028  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  POM201720  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  UCR208860  Cressa truxillensis var. vallicola L. C. Wheeler 1932-6-25 0864 Orange Coastal Plains and Basins; Los Angeles Basin region, Newport Bay 0 Comment
  UCD169755  Crocanthemum aldersonii R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  HSC25245  Croton californicus R. W. Spjut 1972-2-22 2222 Orange Near S Laguna Beach along Hwy. 1 0 Comment
  POM201862  Croton californicus L. M. Booth 1932-5-26 1123 Orange Newport Bay Comment
  RSA427  Croton californicus J. T. Howell 1927-6-6 47 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA697577  Croton californicus Kenneth Beard s.n. Orange Bank of S. A. River. Comment
  UC17567  Croton californicus C. W. Hamlin 1820-1 61 Orange Buena Park Comment
  SEINET9253096 Image available Croton californicus Czarnecki 1966-4-1 58 Orange Near Rancho Santa Ana at end of Orangethorpe Ave. Comment
  RSA702203  Croton setiger Fred M. Roberts, David E. Bramlet 2003-6-20 5922 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  RSA715703  Croton setiger Fred M. Roberts, Robert L. Allen 2005-10-15 6314 Orange entrance to Falcon Group Camp, 2.1km ESE Los Pinos Peak and 0.3km NE campground. 1008 Comment
  UCR191234  Croton setiger A. C. Sanders, Fred M. Roberts 2008-4-22 34984 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA731962  Croton setiger A. Sanders, Fred M. Roberts 2008-4-22 34984 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mi. NE of Rattlesnake Reservoir. 213 Comment
  RSA542556  Crypsis schoenoides Fred M. Roberts 1987-3-31 3302 Orange Lomas de Santiago: Lomas [Loma] Ridge, upper Serrano Canyon, east fork, reservoir, 2.7 kilometers SE Bolero Lookout, UTM 3727950m N, 441250m E. 350 Comment
  RSA683170  Cryptantha intermedia Scott D. White, Amanda Duchardt 2003-4-10 9022 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UCR190966  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR223434  Cryptantha intermedia Dick Newell, Don Millar 2011-2-8 052 Orange Peninsular Range; Santa Ana Mtns., MWD road overlooking Boy Scout Camp, just east of outdoor education property, 1.5 mi. NW (312 deg. ) of Irvine Lake dam 257 Comment
  UCR241913  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  UCR263772  Cryptantha intermedia Ed Kentner 2012-4-24 129 Orange Peninsular Range: Santa Ana Mountains, Lomas De Santiago, El Toro property 200 Comment
  RSA0127341  Cryptantha intermedia var. intermedia Fred M. Roberts 2016-3-17 8023 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  SDSU18440  Cryptantha leiocarpa Robert Lee Allen 2009-4-14 Orange Newport Beach, Balboa Peninsula, southeast of Balboa Pier, at south end of E Street. UTM 11S 04 16 939mE, 37 18 062mN (WGS84/NAD 83). 2 Comment
  SEINET3152280  Cryptantha micrantha H. M. Hall 1906-7-26 7588 Orange Upper Santa Canyon Comment
  RSA543960  Cryptantha microstachys Steve Boyd, Orlando Mistretta 1991-5-9 6191 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  RSA683165  Cryptantha microstachys Scott D. White, Amanda Duchardt 2003-4-10 9013 Orange Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  RSA749491  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UCSB52878  Cryptantha microstachys Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 0.6 km. SW UCI campus center 43 Comment
  IRVC16577  Cryptantha microstachys Gordon A. Marsh 1977-3-12 Orange [San Juan Canyon], Ortega Hwy, gully 2.6mi E San Juan Fire Station. Santa Ana Mountains Comment
  IRVC18320  Cucurbita foetidissima J. W. Johnson 1976-8-2 Orange Upper [Newport] Bay. Newport Beach Comment
  RSA697187  Cucurbita foetidissima Anonymous 1933-1 s.n. Orange Vacant lot, Santa Ana. Comment
  UCSB48207  Cucurbita foetidissima Roberts, Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  CAS-BOT-BC80572  Cupressus forbesii C. B. Wolf; E. R. Johnson 1934-3-21 5578 Orange Rancho Santa Ana, Santa Ana Canyon, Santa Ana River 1/2 mi. S.W. of mexican houses 121 Comment
  JEPS39796  Cupressus forbesii John Thomas Howell 1927-8-10 2983 a Orange Claymire Canyon Santa Ana Mts., Sierra Peak, Claymire Canyon 609 Comment
  RSA352379  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  UCR140975  Cupressus forbesii June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, 2 miles south of Sierra Peak, on road toward Skyline Drive 732 Comment
  SEINET10531085  Cupressus forbesii Carl B. Wolf 1935-1-2 Wolf 2320 Orange Santa Ana Mts. Slopes of Sierra Peak W of Claymine Canyon along road to peak. Upper Sonoran:- Adenostoma, Cypress. Open N.W. slope, reddish sandstone. 670 Comment
  NY16670  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR140976  Cupressus sempervirens June Latting 1973-6-30 s.n. Orange Santa Ana Mountains, Beeks Place, south of Oak Flat 854 Comment
  UCR197796  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA0014076  Cuscuta californica Fred M. Roberts 2008-5-27 7004 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  UCR230836  Cuscuta californica Dick Newell, Don Millar, Shara Harris 2011-6-21 185 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 207 Comment
  RSA71006  Cuscuta ceanothi F. W. Peirson 1923-9-7 4037 Orange Trail from Trabuco Canyon to Santiago Peak. 1280 Comment
  RSA788245  Cuscuta ceanothi R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49627 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  RSA797476  Cuscuta ceanothi R. F. Thorne 1977-11-21 49989 Orange Santa Ana Mountains: San Juan Canyon about 2 miles above San Juan Fire Station Comment
  RSA697260  Cuscuta pentagona Keith E. Hoffmaster 1934-7-15 s.n. Orange Near Santa Ana Comment
  RSA254969  Cuscuta salina C. W. Tilforth 1975-9-3 1037 Orange Northeast shoreline of Upper Bay, Newport Beach Comment
  POM48019  Cuscuta salina I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  CDA23140  Cuscuta subinclusa Mark A. Elvin, D. G. Kelch 2006-12-9 5312 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA725468  Cuscuta subinclusa Fred M. Roberts, Megan Lulow 2007-7-30 6550 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  POM48696  Cycloloma atriplicifolium I. M. Johnston 1924-8-29 s.n. Orange Santa Ana River bed, between Aneheim and Santa Ana Comment
  RSA743475  Cylindropuntia prolifera Fred M. Roberts, Carol A. Roberts 2008-9-28 7117 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC299752  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  SD39904  Cynodon dactylon E. A. Purer 1932-8-31 4868 Orange Comment
  RSA0062647  Cynodon dactylon Jack D. Ingwersen 1962-5-30 s.n. Orange Anaheim. Comment
  JEPS64090  Cyperus eragrostis L. M. Booth 1932-5-15 1201 Orange Costa Mesa Comment
  POM202155  Cyperus eragrostis L. M. Booth 1932-5-15 1201 Orange Costa Mesa. Comment
  UCSB52418  Cyperus eragrostis Roberts, Fred; Marsh, K. 1982-10-18 Orange Laguna Beach: east flank of Temple Hill; along east margin of Top of the World School 295 Comment
  CAS-BOT-BC114360  Cyperus erythrorhizos Peter H. Raven 1961-9-15 16852 Orange Bed of Santa Ana River at Anaheim St. Crossing. 60 Comment
  UC537169  Cyperus esculentus Lawrence M. Booth 1932-7-25 1310 Orange 1 1/2 mi. from ocean Santa Ana R. Comment
  POM210903  Cyperus esculentus L. M. Booth 1932-7-25 1310 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  UCSB54127  Cyperus esculentus Marsh, K. 1986-10-10 Orange Yorba Linda; Santa Ana Canyon, north side of the Santa Ana River, Featherly Park 115 Comment
  RSA715698  Cyperus involucratus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6279 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  CAS-BOT-BC114246  Cyperus laevigatus Carl B. Wolf 1932-7-2 3814 Orange Carbon Canyon, 1/8 mi below La Vida Springs. 213 Comment
  UC729958  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange 1/8 mi. below La Vida Springs (Carbon Canyon); Carbon Canyon 213 Comment
  UCR109742  Cyperus niger T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  RSA794756  Cyperus odoratus Justin M. Wood 2010-9-29 2748 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  CAS-BOT-BC538087  Cyrtomium falcatum R. E. Riefner, Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area W of Morning Canyon Rd 1 Comment
  RSA790026  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49563 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA791871  Datisca glomerata R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49618 Orange Santa Ana Mountains: Bluffs above San Juan Creek, about 1 mile above San Juan Fire Station Comment
  RSA696  Datura stramonium J. T. Howell 1927-7-27 494 Orange Near ranch, Rancho Santa Ana 152 Comment
  JEPS12293  Datura wrightii Lawrence M. Booth 1932-7-30 1337 Orange near Newport Beach (Santa Ana River Channel, near coast); Santa Ana River Channel, near Newport Beach Comment
  UCR16391  Datura wrightii N. J. Moriarty 1973-5-27 730527- 01 Orange San Clemente State Beach 1.2 mi south of the end of Ave Califia in the sand below the railroad tracks. Comment
  IRVC17044  Daucus pusillus C. Thompson 1965-4-12 Orange Laguna Hills Comment
  POM6364  Daucus pusillus P. A. Munz, L. T. Street, G. Williams 1919-5-3 2645 Orange Santa Ana River Canyon. Comment
  UCR217459  Daucus pusillus Mark A. Elvin 2003-3-30 2383 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UCSC001457  Daucus pusillus Peter Kamb 1948-6-19 1086 Orange Holy Jim Canyon, Santa Ana Mountains 610 Comment
  RSA747715  Deinandra fasciculata Fred M. Roberts 2008-7-10 7064 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  SDSU4571  Deinandra fasciculata unknown 1940-5-20 3134 Orange South of county. Comment
  SEINET6048996  Deinandra kelloggii Robert Allen, Allen, Linnel 2008-7-27 Orange Peninsular Ranges. Santa Ana Mountains. Long Canyon Watershed. Along Canyon Road, 128 m SE of jct. with spur to Mystic Oaks (McConville Camp), 0.48 air miles upslope from jct. with Ortega Hwy (SR74). Comment
  CAS-BOT-BC9091  Delphinium cardinale B. D. Stark 1931-6-6 2231 Orange Rancho Santa Ana 137 Comment
  RSA298  Delphinium cardinale J. T. Howell 1927-7-26 s.n. Orange Claymine Canyon near Sierra Peak. 244 Comment
  RSA48922  Delphinium parryi P. A. Munz 1949-5-26 13381 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA683075  Delphinium parryi Scott D. White, Amanda Duchardt 2003-5-1 9154 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA787104  Delphinium parryi Keith E. Hoffmaster 1928-5-29 497 Orange San Onofre. CP5. Comment
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Nov 19 2013
  UCR220962  Delphinium parryi Dick Newell, Don Millar, Ashley Nelson 2010-6-8 24 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Limestone Canyon Rd. at junction with Dripping Springs Rd., 1/2 mile SW of Silverado Rd. and Santiago Rd. 305 Comment
  RSA788921  Delphinium parryi subsp. parryi Fred M. Roberts 1999-6-10 5243 Orange Lomas de Santiago: Loma Ridge, Central Limestone Cyn., 4.5 km W Silverado School and 4.5 km NW Bolero Lookout. 306 Comment
  CAS-BOT-BC121546  Delphinium patens subsp. hepaticoideum Philip Alexander Munz; Robert Daniel Harwood 1920-4-24 3749 Orange Santa Ana Mtns, Sierra Canyon 365 Comment
  RSA162740  Descurainia californica J. D. Olmsted 1959-4-23 472 Orange Spring Trail at Beacon Pines Ranch; 9 miles SW of Corona. 762 Comment
  RSA627745  Descurainia pinnata Scott D. White 1998-1-26 6068 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  RSA697472  Descurainia pinnata Elisabeth Norland 1929-3-3 s.n. Orange Cypress, Calif-Orange Rd. Comment
  RSA3182  Descurainia pinnata subsp. menziesii C. B. Wolf 1932-3-8 2681 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  IRVC1079  Descurainia pinnata subsp. menziesii J. Morgan 1965-4-27 Orange Elmore Ranch. San Clemente Comment
  RSA23620  Dicentra ochroleuca Percy C. Everett 1938-10-11 9464 Orange Santa Ana Mts, Tin Mine Canyon, Skyline Drive, 1/2 mile below summit. 915 Comment
  HSC22053  Dichelostemma capitatum subsp. capitatum S. M. Clapp 1966-4-7 21 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  RSA122  Dichelostemma capitatum subsp. capitatum J. T. Howell 1928-2-7 812 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SEINET219060  Dichelostemma capitatum subsp. capitatum J. McNeill 1969-3-19 3017 Orange Aliso Canyon ca. 5 km. south of Laguna Beach. 10 Comment
  POM48839  Dichondra occidentalis Stephen Grout 1904-08 s.n. Orange Three Arches, Laguna Comment
  UCSB52880  Dichondra occidentalis Roberts, Fred 1983-4-7 Orange South Laguna: Niguel Hill, 1.2km ESE Aliso Peak; 2.7km SSW Alicia Fire Station 79 Comment
  RSA562808  Digitalis purpurea Steve D. Boyd, Tim S. Ross 1992-5-20 7480 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, along foot trail upstream from end of old roadgrade to upper homestead (corrugated steel building). 350 Comment
  SD237346  Dimorphotheca fruticosa Mark A. Elvin 2003-2-23 2315 Orange South Coast: Irvine, San Joaquin Marsh along the berm of San Diego Creek. 3 Comment
  SD225118  Diplacus aurantiacus B. Pitzer 1996-4-30 2801 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). 14 Comment
  SD72857  Diplacus longiflorus F. R. Fosberg 1931-6-19 S 5128 Orange Carbon Canyon, Puente Hills, canyon wall Comment
  CDA3684  Diplotaxis muralis Margaret Bellue, E. L. Paddock, Andreas 1943-8-3 Orange Santa Ana Botanical Garden, Fullerton. 0 Comment
  CDA24808  Diplotaxis tenuifolia R. K. Bishop Nov 1937 Orange 12 miles northwest of Orange on railroad right-of-way. 0 Comment
  RSA362298  Diplotaxis tenuifolia Fred M. Roberts 1986-8-9 s.n. Orange Yorba Linda, Santa Ana Canyon, N side of Green River Golf course. 127 Comment
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Nov 17 2018
  RSA696324  Distichlis spicata Keith E. Hoffmaster 1927-5-22 s.n. Orange Santa Ana. Comment
  UCR193038  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 0.8 mi SW of Irvine Lake and 0.9 mi. SE of Sheriff's Training Facility, just east of Hwy 241 280 Comment
  CAS-BOT-BC41692  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  LA208047  Drymocallis glandulosa W. Pequegnat; 1938-6-15 sn Orange Santa Ana Mountains, Santiago Peak 1734 Comment
  RSA699860  Drymocallis glandulosa Minor Warne 1934-04 s.n. Orange Laguna Canyon Forks Comment
  RSA701656  Drymocallis glandulosa Keith E. Hoffmaster 1935-5-5 s.n. Orange San Juan Canyon., Santa Ana Mts. Comment
  HSC46674  Drymocallis glandulosa var. glandulosa Christopher Davidson 1977-5-18 5633 Orange Cleveland National Forest, Falcon campground 1006 Comment
  IRVC16264  Dryopteris arguta L. Fox 1978-5-9 s.n. Orange Upper Trabuco Canyon. Santa Ana Mountains Comment
  IRVC22665  Dryopteris arguta Fred M. Roberts 1985-5-9 1726 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  POM179748  Dryopteris arguta Marcus E. Jones 1931-3-23 s.n. Orange Laguna Comment
  SD144155  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Above Modjeska Canyon: proposed water tank site. 420 Comment
  IRVC25312  Dryopteris arguta Fred M. Roberts 1987-3-27 3278 Orange Canada de Los Alisos; Canada Rd., 4.5km NNE El Toro Fire Station. Southern Coastal 226 Comment
  RSA791466  Dryopteris arguta Keith E. Hoffmaster 1928-5-29 36 Orange San Onofre. Comment
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Nov 19 2013
  LA204783  Dudleya blochmaniae subsp. blochmaniae None; 1951-4-26 sn Orange Salt Creek Beach, Laguna Comment
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Nov 15 2013
  SBBG94387  Dudleya blochmaniae subsp. blochmaniae R. Moran 1950-4-24 3388 Orange San Clemente Comment
  SD45413  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs. Comment
  UC1015325  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente Comment
  RSA629057  Dudleya cymosa subsp. ovatifolia Valerie L. Soza, LeRoy Gross 1999-6-7 473 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
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May 26 2016
  CAS-BOT-BC428265  Dudleya edulis Cecil Hart 1928-5-27 s.n. Orange Laguna Beach Comment
  POM48463  Dudleya edulis F. W. Peirson 1924-5-31 4674 Orange 5 miles southeast of Laguna Beach. Comment
  RSA12839  Dudleya edulis C. B. Wolf 1934-12-29 2316 Orange San Clemente. Comment
  CLARK-A1528-2622  Dudleya lanceolata John C. Roos 1937-5-21 2338 Orange Santa Ana Comment
  IRVC22733  Dudleya lanceolata Fred M. Roberts 1985-5-13 1788 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  UCR175053  Dudleya lanceolata Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  RSA594811  Dudleya multicaulis Fred M. Roberts, Edna Rey, Kay Stockwell 1993-5-6 4880 Orange El Modena: Lomita Ave, ca. 0.4 km by road E Santiago Blvd., 0.4 km W Bauer Survey Marker. 122 Comment
  SD45412  Dudleya multicaulis Reid Moran 1950-5-24 3412 Orange Brushy slopes of Laguna Canyon 1.5 miles above the mouth. Comment
  UC971741  Dudleya multicaulis L. M. Booth 1932-5-18 1054 Orange Newport Bay Comment
  UCR37798  Dudleya multicaulis Steve Boyd 1981-5-13 s.n. Orange South Coast, Pelican Hill, Irvine Ranch Property, San Joaquin Hills south of Corona del Mar 218 Comment
  UCR52607  Dudleya multicaulis Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Canyon, head of Gypsum Canyon, along roadbanks 412 Comment
  UCD101938  Dudleya stolonifera Reid Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  CAS-BOT-BC109743  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.7 mile below Toro Road Junction, -1.5 mile above canyon mouth. Laguna Canyon. 243 Comment
  RSA697178  Dudleya variegata Gray s.n. Orange Panorama Heights. Comment
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Jan 10 2015
  CAS-BOT-BC109771  Dudleya viscida E. K. Balls 1936-6-17 19736 Orange Santa Ana Mountains, San Juan Canyon, along Ortega Highway, 0.6 mile below San Juan Hot Springs. Comment
  UC1015403  Dudleya viscida Reid Moran 1931-1 5246 Orange San Juan Hot Springs Comment
  UC115218  Dudleya viscida J. C. Nevin Oct 1881 Orange San Juan Comment
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Sep 1 2006
  UCD98691  Dysphania ambrosioides Ira L. Wiggins 1965-11-5 20319 Orange Edge of orange grove near corner of Dowling St. and Crowther Ave., Placentia. Comment
  UCR281507  Dysphania pumilio Mitch Provance, Jeremiah George 2017-3-20 317- 103 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  RSA0051322  Echidiocarya californica Keith E. Hoffmaster 1935-2-9 841 Orange Santa Ana Mts., near El Toro. Comment
  UCD60762  Echinochloa colona Beecher Crampton 1965-10-27 7579 Orange 2 miles east of Irvine, Irvine Blvd. Comment
  CAS-BOT-BC197174  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20254 Orange In Carbon Canyon about 3.5 mi. above its mouth Comment
  UCD60916  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange Roadside at west end of Orangethorpe Estates subdivision, near Atwood. Comment
  UCR240255  Echinochloa crus-pavonis R. E. Riefner Jr. 2006-9-16 s.n. Orange Yorba Linda, north of Chapman Ave. c. 1 mile along floodplain of Santa Ana River 98 Comment
  CAS-BOT-BC445609  Echinodorus berteroi Le Roy Abrams 1901-6-1 1777 Orange Laguna Comment
  IRVC26902  Echinodorus berteroi D. E. Bramlet 1990-10-17 2063 Orange Delhi Channel at the intersection of Irvine Ave. & Mesa Drive, just W of Newport Beach Golf Course. 6 Comment
  UCR113444  Echinodorus berteroi R. E. Riefner Jr. 2000-8-21 20- 728 Orange Santa Ana Mountains: Irvine Lake [Santiago Reservoir], first cove southeast of the dam 238 Comment
  JEPS30718  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim Street, Anaheim, Santa Ana River Bed Santa Ana River Bed, Anaheim, Anaheim Street 60 Comment
  RSA800668  Eclipta prostrata Justin M. Wood 2010-9-29 2753 Orange Santa Ana Canyon: Santa Ana River, southwest of Green River Golf Course and north of Hwy 91 and Santa Ana River Trail. 128 Comment
  SBBG104111  Ehrendorferia chrysantha B. Pitzer, S. Hemstreet 1992-5-21 1948 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  RSA0038516  Ehrharta erecta R. E. Riefner Jr. 2012-2-1 12 -15 Orange city of Dana Point, Dana Point Harbor, vicinity of Puerto Pl. and Dana Point Harbor Drive 2 Comment
  UC1543169  Eleocharis Donald G. Nelson 1935-4-15 307 Orange On road from Garden Grove to Cosa Mesa, converging near Costa Mesa, toward main highway from Santa Ana Comment
  UCR193790  Eleocharis A. C. Sanders, Fred M. Roberts 2008-7-3 35701 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  RSA697522  Eleocharis acicularis Elisabeth Norland 1929-4-11 s.n. Orange Cypress. Comment
  CAS-BOT-BC113330  Eleocharis montevidensis Helen D. Geis 1902-4-1 507 Orange Santa Ana Comment
  RSA599640  Eleocharis montevidensis var. montevidensis Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4969 Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  POM202156  Eleocharis palustris L. M. Booth 1932-5-15 1202 Orange Costa Mesa. Comment
  RSA705547  Eleusine coracana subsp. africana R. E. Riefner Jr. 2004-8-28 4 -407 Orange City of Fountain Valley, along Newland Avenue at Edinger Street. 14 Comment
  RSA735119  Eleusine coracana subsp. africana R. E. Riefner 2006-10-8 6 -474 Orange City of Irvine, San Diego Creek, between Alton Pwky. and 405 Fwy 51 Comment
  RSA725461  Eleusine indica Fred M. Roberts 2007-8-6 6556 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA697745  Ellisia chrysanthemifolia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  RSA748263  Elymus X gouldii A. C. Sanders, Mitch Provance 2008-5-20 35396 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  UCR209665  Elymus condensatus Fred M. Roberts 2008-5-8 6945 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road Gate, 0.8 km west-northwest of the Marine Institute, Dana Point Harbor 65 Comment
  POM265759  Elymus glaucus J. C. Roos 1937-5-10 2076 Orange San Juan Capistrano. Comment
  UCR177693  Elymus glaucus Fred M. Roberts 2003-5-1 5687 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  RSA539340  Elymus multisetus Fred M. Roberts, Carol A. Roberts 1988-6-9 4078 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA548858  Elymus multisetus Fred M. Roberts, Gordon Marsh 1986-6-6 2986 Orange Black Star Canyon, Black Star Canyon Rd., 2.7 km by road below summit; 3.6 km S Sierra Peak., UTM 3741900m N, 439600mE. 646 Comment
  CAS-BOT-BC131228  Encelia californica P. A. Munz 1920-4-11 3816 Orange Santa Ana River [Canon] Canyon near Rincon 304 Comment
  HSC5477  Encelia californica C. L. Hitchcock, C. V. Muhlick 1964-3-17 23069 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  RSA0073641  Encelia californica Fred M. Roberts 2010-3-12 7177 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA614340  Encelia californica B. Pitzer 1996-4-30 2792 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (Pacific Coast Hwy). Bluffs above the beach. Comment
  RSA696885  Encelia californica Kenneth Beard 1934-03 s.n. Orange Waste land along road near Placentia. Comment
  RSA734018  Encelia californica A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34611 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  RSA749287  Encelia californica Fred M. Roberts, David E. Bramlet 2008-4-1 6835 Orange Lomas de Santiago: Loma Ridge, Upper Hicks Cyn. along Haul Road, 1.0 km NNW Bee Peak, Irvine Ranch Conservancy. 341 Comment
  RSA785305  Encelia californica Doris Bowers 1957-5-16 943 Orange Corona Del Mar 3 Comment
  UC536898  Encelia californica Lawrence M. Booth 1932-5-12 1029 Orange Newport Bay Comment
  RSA746042  Encelia californica Archie F. Iskaq 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh. Comment
  UC1607997  Epilobium canum Donald G. Nelson 1933-7-16 133 Orange hills N of Fullerton 76 Comment
  RSA797597  Epilobium canum subsp. angustifolium Robert F. Thorne 1977-11-21 49994 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  CAS-BOT-BC166347  Epilobium canum subsp. canum Edgar A. Mearns 1894-6-25 4081 Orange San Clemente Island Comment
  CAS-BOT-BC166350  Epilobium canum subsp. canum John Thomas Howell 1927-7-26 2842 Orange SE. fork of Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  POM18136  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange Santa Ana Mountains, on trail from Trabuco Canyon to Santiago Peak. 1616 Comment
  POM200869  Epilobium canum subsp. canum Carl B. Wolf 1933-8-24 5384 Orange Santa Ana Mountains; Along road S of Bedford Peak on way to Santiago Peak. 1067 Comment
  LA206113  Epilobium canum subsp. latifolium W. E. Pequegnat; 1937-8-11 7 a Orange Santa Ana Mountains, Santiago Peak Comment
  RSA542492  Epilobium canum subsp. latifolium Fred M. Roberts, Richard E. Riefner 1988-7-19 4119 Orange Santa Ana Mountains: Modjeska Peak, west slope, 1.1 km SW summit 1524 Comment
  RSA717047  Epilobium ciliatum Fred M. Roberts 2005-10-3 6290 Orange San Juan Capistrano: San Juan Creek, La Novia Road bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  RSA731008  Epilobium ciliatum subsp. ciliatum Fred M. Roberts 2006-11-15 6471 Orange Santa Ana Cyn., Santa Ana River, north bank, 1.1 km ENE Imperial Hwy crossing. 85 Comment
  UC536935  Epipactis gigantea Lawrence M. Booth 1932-6-4 1150 Orange Newport Lagoon; base of hill Comment
  RSA0031655  Equisetum funstonii Keith E. Hoffmaster 1937-4-11 749 Orange Black Star Can., Santa Ana Mts. Comment
  UCR195014  Equisetum laevigatum A. C. Sanders, Fred M. Roberts 2008-8-7 35987 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  RSA753080  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  UCR197700  Eragrostis A. C. Sanders, Fred M. Roberts 2008-9-18 36091 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA734342  Eragrostis barrelieri A. C. Sanders, Linda Farley, Fred M. Roberts, David E. Bramlet 2008-4-1 34633 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  CAS-BOT-BC204438  Eragrostis cilianensis Helen D. Geis 1902-1-1 549 Orange Unspecified Comment
  RSA612207  Eragrostis cilianensis L. C. Wheeler 1932-8-13 1131 Orange 2 miles N Claremont. 412 Comment
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Nov 15 2013
  UCD63541  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  RSA170439  Eremocarpus setiger J. D. Olmsted 1959-8-26 831 Orange 100 yards northeast of center of Hidden Ranch by pump along Black Star Canyon Road. N end of Santa Ana Mountains 671 Comment
  CAS-BOT-BC187932  Eriastrum densifolium subsp. sanctorum John Thomas Howell 1927-8-13 2985 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  RSA0119700  Eriastrum densifolium subsp. sanctorum J. T. Howell 1927-8-13 623 Orange Santa Ana River Bottom 152 Comment
  UCR192738  Eriastrum sapphirinum A. C. Sanders, Fred M. Roberts 2008-5-6 35222 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  RSA0122940  Eriastrum sapphirinum subsp. dasyanthum D. E. Bramlet 2008-6-3 4286 Orange Upper Borrego Cyn, 136m SE of the access road and 1.5km west of Santiago Cyn Road 433 Comment
  RSA0122944  Eriastrum sapphirinum subsp. dasyanthum Scott D. White, Michael Honer 2003-5-29 9430 Orange Santa Ana Mtn foothills: Rancho Mission Viejo. Hills above Canada Gobernadora, west side of canyon, ca. 1 air mile north of Ortega hwy. 91 Comment
  RSA0121307  Eriastrum sapphirinum subsp. dasyanthum J. T. Howell 1927-6-1 9 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA264442  Ericameria brachylepis C. W. Tilforth 1976-10-21 1227 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  CHSC346  Ericameria linearifolia S. Westerberg 1938-3-25 Orange Santa Ana. Comment
  CAS-BOT-BC299501  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2708 Orange Rancho Santa Ana Botanical Garden 207 Comment
  RSA2886  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  SEINET7073539  Ericameria palmeri var. pachylepis A. G. Vestal 1963-3-27 s.n. Orange Ridge above Cai+-ada Gobernadora. About 6.2 miles up. UTM Zone 11, 446709mN, 3718372mN. Coordinate datum: NAD27. Comment
  UCR239618  Ericameria palmeri var. pachylepis Fred M. Roberts 2012-4-27 7537 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.9 km southwest of Irvine Lake Park Campground and 1.2 km east-souteast of Orange County Emergency Operations Center, Hill 1311 350 Comment
  RSA842  Ericameria pinifolia J. T. Howell 1927-10-23 770 Orange On road to Aliso Canyon Rancho Santa Ana. 152 Comment
  UC1118814  Ericameria pinifolia H. E. Norton 1931-2-26 31 Orange San Joaquin Hills Corona Quad., San Joaquin Hills 121 Comment
  JEPS43  Eriodictyon crassifolium var. crassifolium Alice King May 1908 Orange Orange Park mouth of Santiago Canyon (mouth of Santiago Canyon); Santa Ana Mountains, , Orange Park Comment
  UC1925892  Eriogonum Donald G. Nelson 1936-6-5 438 Orange Hills NE of Fullerton. 91 Comment
  IRVC27012  Eriogonum elongatum Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA542526  Eriogonum elongatum Fred M. Roberts 1986-11-5 3205 Orange Santa Ana Mountains: Upper Mabey Canyon near top of Skyline Dr., 2.7 km SE Sierra Peak, NE of Oak Flat. 259 Comment
  JEPS56997  Eriogonum elongatum var. elongatum Lawrence M. Booth 1932-8-9 1370 Orange Newport Bay Comment
  RSA0031722  Eriogonum fasciculatum Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-25 63 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  RSA658200  Eriogonum fasciculatum T. A. Daubert 1991-5-19 650 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA698424  Eriogonum fasciculatum Minor Warne 1934-4-27 s.n. Orange Ladd Canyon. Comment
  RSA0027780  Eriogonum fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49677 -a Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UC536920  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  CAS-BOT-BC249945  Eriogonum fasciculatum var. foliolosum David D. Keck 1932-9-30 1903 Orange 2 mi. W. of Laguna Beach Comment
  RSA542525  Eriogonum fasciculatum var. foliolosum Fred M. Roberts 1988-5-13 3971 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  RSA650866  Eriogonum fasciculatum var. foliolosum R. B. Newcom 1948-4-24 20 Orange approx. 4 miles S.W. of Santiago Dam. 38 Comment
  UCSB41761  Eriogonum fasciculatum var. foliolosum Walker, Richard 1966-5-15 Orange On south road embankment of Esperanza Ave. about 3 mi. east of Imperial Hwy. east of state landmark of Yorba Hacienda Site. 30 Comment
  UCD100011  Eriogonum fasciculatum var. foliolosum G. H. Vansell 1933-6-30 s.n. Orange Orange County. Comment
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Sep 26 2020
  RSA759752  Eriogonum gracile A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37195 Orange Lomas de Santiago, Limestone Canyon, west of Limestone Canyon Rd. 366 Comment
  UCR274309  Eriogonum gracile Dick Newell, Don Millar 2016-7-19 431 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon Rd., 1/2 mile SE of junction with Dripping Springs Trail 344 Comment
  UCSB52907  Eriogonum gracile Roberts, Fred 1984-8-14 Orange Chiquito Basin Trail; ridge between Chiquito Basin and Lion Canyon; 2.6km SSE Los Pinos Peak; 1.3km SSW Blue Jay Camp ground; Santa Ana Mtns 885 Comment
  SEINET253385  Eriogonum gracile var. gracile L. M. Booth 1933-8-26 1386 Orange Dry hillside Newport Lagoon Comment
  CAS-BOT-BC257875  Eriogonum parvifolium David D. Keck 1932-9-30 1904 Orange 2 mi. W. of Laguna Beach Comment
  UC205014  Eriogonum parvifolium F. M. Reed Aug. 1920 Orange 3 mi s Laguna Comment
  UCR207545  Eriogonum parvifolium O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UCR66988  Eriogonum parvifolium A. C. Sanders 1990-10-6 10179 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA420006  Eriogonum parvifolium subsp. paynei Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach Comment
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Jul 15 2013
  RSA13461  Eriogonum parvifolium var. parvifolium S. G. Stokes 1932-8-29 21 Orange Doheny's Palisades near San Clemente Comment
  RSA539351  Eriogonum saxatile Fred M. Roberts 1988-6-10 4097 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  UC1618033  Eriogonum thurberi Donald G. Nelson 1935-6-2 365 Orange n. Brea (mouth of Brea Canyon, on Tonner lease); Brea Canyon, Tonner lease Comment
  CAS-BOT-BC297331  Eriophyllum confertiflorum L. R. Abrams 1901-6-15 1834 Orange Santiago Peak Comment
  POM357957  Eriophyllum confertiflorum F. R. Fosberg 1931-6-21 5138 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA695678  Eriophyllum confertiflorum Minor Warne 1934-3-21 s.n Orange Limestone Canyon. Santa Ana Mts. Comment
  UCR49768  Eriophyllum confertiflorum B. G. Pitzer 1987-4-24 0504 Orange Santa Ana Mtns, Santa Ana River at Gypsum Canyon, c. 0.5 mi. north of Hwy 91. 113 Comment
  IRVC26745  Eriophyllum confertiflorum Mark A. Elvin 2004-6-18 3521 Orange UCI Arboretum Southern Coastal 15 Comment
  UC1118325  Eriophyllum confertiflorum var. confertiflorum J. B. Spring 1931-4-14 33 Orange Cold Spring Harbor Elsinore Quadrangle, Cold Spring Harbor 457 Comment
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Jan 11 2007
  RSA678510  Erodium botrys Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1127 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA697670  Erodium botrys Olive Bernice Spears 1932-3-29 s.n. Orange 1/2 mi. W. of Atwood. Comment
  RSA678509  Erodium cicutarium Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1126 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA732084  Erodium moschatum A. C. Sanders, Fred M. Roberts 2008-3-25 34555 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA125659  Erodium moschatum R. Weatherby 1950-2-25 1031 Orange Near El Toro, east side of Orange County. Santa Ana Mts. 305 Comment
  CAS-BOT-BC41525  Erysimum capitatum Helen D. Geis 1902-1-1 528 Orange Santiago Creek. Comment
  IRVC22653  Erysimum capitatum L. Orsak 1973-5-10 Orange Upper Santiago Canyon, top of Joplin Trail, Santa Ana Mountains 1483 Comment
  SD235040  Erythranthe floribunda A. C. Sanders, T. B. Salvato 2008-5-13 35335 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  RSA734336  Eschscholzia californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34625 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  UCR192107  Eschscholzia californica A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  RSA539383  Eschscholzia californica var. peninsularis Fred M. Roberts, Carol A. Roberts 1988-6-9 4076 Orange Santa Ana Mountains: Main Divide Truck Trail, saddle between Modjeska Peak and Santiago Pk., 0.5 km Ee summit of Modjeska Pk. 1445 Comment
  UCR50903  Eucalyptus amplifolia Dave Goodward 1987-4-16 7 Orange Irvine Ranch, Boy Scout Camp in Peters Canyon, east of Tustin and c. 1 mi NE of the Irvine Blvd/Myford Road intersection 122 Comment
  RSA0010840  Eucalyptus camaldulensis Fred M. Roberts, Sandy Leatherman 2007-11-27 6673 Orange Yorba Linda: Santa Ana Canyon, Santa Ana River wash, S of E La Palma Road near Via Lomas de Yorba Linda, about 0.6 km W Gypsum Cyn. bridge. 113 Comment
  UCR80029  Eucalyptus camaldulensis Scott D. White 1992-10-1 956 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  SEINET6692539 Image available Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-1 35370 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CDA5160  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07 -414 Orange City Laguna Niguel, along Forbes Road near Crown Valley Parkway; west of I-5 Freeway. 0 Comment
  UCR103193  Eucalyptus globulus Scott D. White 1997-3-26 4816 Orange Univ. of Calif. Irvine Campus, east of main campus at site of proposed student recreation center, east of main campus, between California Avenue and Culver Drive. 40 Comment
  POM202027  Eucrypta chrysanthemifolia L. M. Booth 1932-5-19 1063 Orange Newport Bay Comment
  RSA3173  Eucrypta chrysanthemifolia Carl B. Wolf 1932-3-8 2690 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA732059  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-8 34750 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA794330  Eucrypta chrysanthemifolia Justin M. Wood 2010-3-31 1447 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UCR193819  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35869 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UC1607994  Eucrypta chrysanthemifolia var. chrysanthemifolia Donald G. Nelson 1935-7-6 224 Orange San Juan Canyon Comment
  UC421675  Eucrypta chrysanthemifolia var. chrysanthemifolia John Thomas Howell 1927-6-21 2566 Orange Santa Ana Canyon Comment
  RSA305657  Euphorbia misera B. Busenberg 1979-11-14 1925 Orange North of Marina parking lot, Dana Point Comment
  RSA5354  Euphorbia misera B. D. Stark 1932-12-9 4425 Orange Dana Point Comment
  SD237416  Euphorbia misera T. B. Salvato 2010-9-27 5106 Orange South Coast: Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Re., beyond the end of Green Lantern St., overlooking Dana Point Harbor. 52 Comment
  UCR55556  Euphorbia misera G. L. Webster 1966-12-11 7479 Orange South Coast, Dana Point Comment
  UCSB52452  Euphorbia misera Roberts, Fred 1983-3-10 Orange Dana Point Headlands: south of Scenic Dr., 0.3 km. W Dana Point Harbor; 0.8 km. S Richard Henry Dana School 60 Comment
  RSA734741  Euphorbia peplus L. C. Wheeler 1946-3-6 6173 Orange Newport Bay. Mainland north of east end of Balboa Island. 3 Comment
  UCD142717  Euphorbia polycarpa C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 miles east of Brea. Comment
  UCR100218  Euphorbia polycarpa Scott D. White 1996-12-20 4628 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA0104830  Euphorbia polycarpa var. polycarpa Mike McCartin 1965-4-4 s.n. Orange Silverado Canyon. Comment
  RSA70544  Euphorbia spathulata F. W. Peirson 1922-5-18 3060 Orange Santa Ana River. 122 Comment
  SEINET6186107  Euthamia occidentalis R. E. Riefner Jr. 2006-1 06 -666 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. USGS QUAD: San Joaquin Gun Club, Tustin 6 Comment
  RSA91147  Euthamia occidentalis F. W. Peirson 1924-10-19 5243 Orange Wintersberg. Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR209670  Festuca myuros var. myuros Fred M. Roberts 2008-4-16 6911 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  CDA22544  Festuca rubra Gordon Marsh, Karlin G. Marsh 1977-5-18 Orange Laguna Niguel: One block from Pacific Coast Highway on Mariners Drive. 0 Comment
  IRVC29790  Ficus carica Mark A. Elvin, Dean Kelch 2006-12-9 5315 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  CAS-BOT-BC474737  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -359 Orange City of Newport Beach, Corona del Mar, on Marguerite Ave. between Fifth Ave.and Fourth Ave. 41 Comment
  CAS-BOT-BC500432  Ficus microcarpa R. E. Riefner, Jr. 2015-7-18 15 -198 Orange City of Costa Mesa, Anton Blvd. on ramp to 405 Freeway, ca 0.3 mi from intersection of Bristol St. at Sunflower Ave. 11 Comment
  CDA22222  Ficus rubiginosa D. G. Kelch 2006-12-9 6 .565 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC22037  Filago californica Fred M. Roberts 1983-5-4 1028 Orange Temple Hill, Upper Rancho Laguna Canyon, 1.7km SSW Top of the World Sch.; 1.4km ENE Cactus Point, Laguna Beach 200 Comment
  RSA736576  Filago californica Keith E. Hoffmaster 1935-4-14 597 Orange Trabuco creek., 1/4 mi. above CCC camp at Trabuco Oaks, Santa Ana Mts. Comment
  RSA743373  Filago californica Fred M. Roberts 2008-4-9 6853 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  IRVC3699  Foeniculum vulgare L. McCabe 1965-5-8 Orange Corona del Mar]: Corona Highlands. [Newport Beach Comment
  RSA759156  Foeniculum vulgare A. C. Sanders, Fred M. Roberts 2008-6-17 35458 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  RSA746043  Foeniculum vulgare Alyssa J. Lai 2006-2-4 1 Orange Southern Coastal: San Joaquin Marsh; NW edge of marsh 3 Comment
  RSA791474  Foeniculum vulgare Keith E. Hoffmaster 1928-1-2 717 Orange Santa Ana. CP3. Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  SBBG92713  Frangula californica subsp. californica R. Moran 1975-7-18 22596 Orange bottom of upper Trabuco Cyn 725 Comment
  RSA391398  Frankenia grandifolia Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach. Comment
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Jul 15 2013
  RSA697030  Frankenia grandifolia Keith E. Hoffmaster 1927-6-13 s.n. Orange Near Santa Ana. Comment
  SEINET6671089 Image available Frankenia grandifolia var. campestris Lawrence M. Booth 1932-1 1324 Orange Corona del Mar, Newport Beach Comment
  SBBG72757  Frankenia salina M. N. Ackley -May-1926 358 Orange Sunset Beach 8 Comment
  UCR158094  Frankenia salina Adrian Wolf 1998-5-27 328 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  UCR89689  Frasera parryi Don Pendleton 1992-5-16 92- 18 Orange Santa Ana Mtns., Cleveland National Forest, NW of El Cariso, on trails near Falcon Group Camp 823 Comment
  RSA554469  Frasera parryi Don Pendleton 1992-5-16 92 -18 Orange Cleveland National Forest, NW of El Cariso, on trails near Flacoln Group Camp. 823 Comment
  CAS-BOT-BC217643  Fraxinus dipetala Munz; Street; Williams 1919-5-3 2667 Orange Santa Ana River Canyon Comment
  POM6424  Fraxinus dipetala P. A. Munz, Street, Williams 1919-5-3 2667 Orange Santa Ana River Canyon. Comment
  RSA5342  Fraxinus dipetala B. D. Stark, C. W. Tilforth 1933-1-4 4495 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  UCR261699  Fraxinus dipetala Dick Newell, Judy Booth 2014-5-15 371 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 0.87 road miles east of the lower Maple Springs gate 623 Comment
  SD175837  Fraxinus uhdei D. G. Kelch 2006-12-9 6 535 Orange Along Newport Back Bay Dr. in side canyon. 6 Comment
  SEINET8726759 Image available Fremontia californica Jean Coulson 1959-1 119 Orange Disneyland Outside Fantasyland R.R. Station. Comment
  CHSC27882  Fremontodendron mexicanum Mike Cecchini 1978-3-23 2 Orange Ca. .5 km ne of Tucker Wildlife Sanctuary and 1 km se of Modjeska Reservoir, 20.5 km se of Tustin. 450 Comment
  RSA649055  Fritillaria biflora D. E. Bramlet 2000-4-12 2978 Orange Tributary to Fremont Canyon. the site is 396m northwest of the Edison Spur road and 1.2km southeast of the Fremont ridge road. The locality is 305m southwest of knoll 1515. 372 Comment
  RSA773508  Fritillaria biflora Fred M. Roberts 1999-4-26 5202 Orange Lomas de Santiago: ridge between Santiago Creek wash and Limestone Canyon, 3.8 km W Bee Peak and 1.7 km SSE Silverado School 409 Comment
  RSA0036644  Fritillaria biflora Robt. Allen 2009-3-29 s.n. Orange Peninsular Ranges; Santa Ana Mountains regions: Near Santiago Canyon. Rancho Sonado (Orange County Department of Education). Entrance is along Santiago Canyon Road, 0.23 miles NW of turnoff to Williams Canyon, 1.55 air miles SE of turnoff to Silverado, Canyon. Wild Bill Trail. 364 Comment
  UCR29049  Fumaria parviflora L. C. Erickson 1952-3-13 s.n. Orange Santa Ana Comment
  OBI42766  Fumaria parviflora Larry Summers 1983-4-18 s.n. Orange Tustin, Irvine Ranch, Field 120 at the intersection of Bryan and Culver. At the edge of a tomato field 46 Comment
  POM265787  Fumaria parviflora Vesta Newsom Griffith 1943-3-21 s.n. Orange Near Katella School, 2.5 miles southwest of Anaheim Comment
  RSA539416  Funastrum cynanchoides var. hartwegii Fred M. Roberts, D. Willick 1988-9-16 4133 Orange Peralta Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.1 km N Robbers Peak 177 Comment
  RSA759247  Funastrum cynanchoides var. hartwegii Robt. Allen, Alison Linden 2007-5-17 s.n. Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. 136 Comment
  UCR132569  Gaillardia X grandiflora Robert DeRuff 2001-9-19 s.n. Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  RSA700194  Galium angustifolium Stephen Bruff s.n. Orange Lemon Heights. Comment
  RSA33791  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  RSA542396  Galium angustifolium subsp. angustifolium Fred M. Roberts Jr., R. E. Riefner 1988-7-19 4122 Orange Modjeska Peak, west slope, along old abandoned road, 0.2 km west summit 1592 Comment
  RSA632422  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-10 519 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1555 Comment
  POM186338  Galium angustifolium subsp. angustifolium Joseph A. Ewan 1932-7-29 7736 Orange Road around Newport Lagoon. Comment
  RSA747595  Galium angustifolium var. angustifolium Fred M. Roberts 2000-5-19 5328 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  RSA0026260  Galium aparine Fred M. Roberts 2013-6-12 7790 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA0073656  Galium aparine Fred M. Roberts, Lee Ann Caranza 2009-4-7 7142 Orange Dana Point Headlands: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 60 Comment
  RSA588726  Galium aparine Fred M. Roberts Jr. 1990-5-7 4604 Orange Rancho Mission Viejo: Ridge south of Blind Canyon and east of Christianitos Canyon, TRW Lease Hold, 5.0 km NE Clemente Survey Marker. 152 Comment
  RSA752  Galium nuttallii J. T. Howell 1927-6-26 219 Orange Claymine Canyon near Sierra Peak 366 Comment
  RSA752320  Galium parisiense Fred M. Roberts 2008-5-20 7133 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Cyn., 0.8 km NW Bolero Spr. and 3.1 km WNW Bolero Lookout. Irvine Ranch Conservancy. 467 Comment
  RSA734343  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  RSA698801  Galium porrigens var. porrigens Unspecified s.n. Orange Lower Trabuco. Comment
  UCR108316  Garrya flavescens Steve Boyd, B. O'Brien 1998-1-13 10075 Orange Santa Ana Mtns, N end of range, head of Tin Mine Canyon along Main Divide Road (3S04) c. 1.8 mi south of Oak Flat 884 Comment
  RSA124723  Garrya flavescens var. pallida E. K. Balls, P. C. Everett 1957-11-25 22846 Orange 1.4 miles E of Silverado. Comment
  CLARK-A1528-974  Gasoul nodiflorum Patricia A. Andrews 1975-6-26 5928 Orange Capistrano Bay Beach 9 Comment
  RSA749359  Gaura coccinea Fred M. Roberts 2008-4-15 6898 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.6 km WSW Bee Peak, Irvine Ranch Conservancy. 183 Comment
  RSA5510  Gaura coccinea Carl B. Wolf 1932-7-2 3809 Orange 1.5 miles east of Brea on Cedar St. 107 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  CDA5237  Gaura sinuata T. C. Fuller 1962-6-7 8873 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  SEINET10728264  Gazania David B. Dunn 1971-8-13 Dunn 18119 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA759533  Genista Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon community, circa 50 meters below Forest Gate. Within 2-10 m of access road 640 Comment
  RSA791924  Geranium incanum var. multifidum R. E. Riefner Jr. 2007-4-28 7 -189 Orange City of Newport Beach, Newport Bay, North Star Beach, vicinity of Morning Star Ln. 2 Comment
  SEINET5321189  Gilia angelensis A. G. Vestal, W. P. Vestal 1955-3-24 3460 Orange El Toro; About 5 miles east of El Toro Comment
  SEINET6969921  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  SEINET6969922  Gilia angelensis W. P. Vestal, A. G. Vestal 1955-3-24 3460 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  SEINET6099462  Gilia capitata Unknown 1944-6-4 1365 Orange Elsinore Mountain. Lookout at top. Roadside. Comment
  RSA749432  Gilia capitata subsp. abrotanifolia Fred M. Roberts 2008-4-14 6896 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork, 3.1 km E Robbers Peak, Irvine Ranch Conservancy. 453 Comment
  RSA628623  Gilia capitata subsp. abrotanifolia Sandy Leatherman, Fred Roberts, Brian Leatherman, Trish Smith 1998-5-23 13 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  RSA731759  Gnaphalium canescens subsp. microcephalum Fred M. Roberts, Sandy Leatherman 2007-11-9 6646 Orange San Juan Canyon along San Juan Creek, within the community of San Juan Hot Springs. 216 Comment
  RSA750065  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-9-18 36068 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  RSA603364  Gnaphalium leucocephalum Scott D. White 1997-6-12 5342 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UCR126410  Gnaphalium leucocephalum Fred M. Roberts 2003-7-24 5963 Orange South Coast, San Juan Capistrano, San Juan Creek, c. 0.1 km NE of La Novia Bridge 27 Comment
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Jun 4 2013
  UCR138408  Gnaphalium leucocephalum Scott D. White, Brian Leatherman 1997-6-12 5342 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA710409  Gnaphalium luteoalbum Fred M. Roberts 2005-10-3 6297 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  POM4639  Gnaphalium ramosissimum C. B. Bradshaw s.n. Orange Santiago Canyon, Santa Ana Mts. Comment
  IRVC23151  Gnaphalium stramineum Fred M. Roberts 1985-7-11 2021 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Road near Laguna Lakes, 5.0km ENE Signal Peak. southern coastal 112 Comment
  IRVC9357  Gnaphalium stramineum B. T. Gittins 1963-5-29 239 Orange Orange State College. Fullerton Comment
  RSA698231  Godetia bottae G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  CAS-BOT-BC305205  Grindelia hirsutula Carl B. Wolf 1936-7-8 8101 Orange Coast Highway, Western end of Newport Bay 9 Comment
  CAS-BOT-BC305209  Grindelia hirsutula John Thomas Howell 1931-6-1 6623 Orange San Clemente Comment
  JEPS57260  Grindelia hirsutula L. R. Heckard and R. C. Bacigalupi 1968-5-8 1836 Orange on terrace back of ocean just n of Doheny Beach Park Dana Point Comment
  UCSB48220  Grindelia hirsutula Roberts, Fred 1981-6-20 Orange Dana Point: 0.7km ENE Dana Hills High School 76 Comment
  RSA753161  Guillenia lasiophylla D. E. Bramlet 2008-3-31 4133 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  CAS-BOT-BC314526  Gutierrezia californica Helen D. Geis 1902-1-1 s.n. Orange Santiago Creek Comment
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Dec 8 2018
  LA97587  Gutierrezia californica David S. Verity; 1974-2-20 sn Orange hills behind South Laguna Comment
  POM50885  Gutierrezia californica Helen D. Gris 1902-1 573 Orange Santiago Canyon. Comment
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Dec 8 2018
  RSA867  Gutierrezia californica J. T. Howell 1927-9-24 746 Orange Santa Ana Botany Garden 152 Comment
  UCR24011  Hainardia cylindrica John C. Roos 1941-6-4 s.n. Orange Corona Del Mar Comment
  RSA403563  Hainardia cylindrica L. C. Wheeler 1932-6-25 851 Orange 1/2 mile N Newport Bay. 15 Comment
  RSA581359  Hainardia cylindrica R. E. Riefner 1995-6-28 95 -256 Orange Along margins of vernal pools. Surf Beach, San Onofre State Beach. Comment
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Nov 19 2013
  UCR197707  Haplopappus menziesii A. C. Sanders, Fred M. Roberts 2008-9-18 36078 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  LA202463  Haplopappus palmeri subsp. pachylepis Lawrence M. Booth; 8853 Orange Newport Beach Comment
  UCR197795  Haplopappus squarrosus A. C. Sanders, Fred M. Roberts 2008-9-18 36098 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon at the highway bridge above Irvine Lake 300 Comment
  UCR103284  Haplopappus venetus B. G. Pitzer, T. Tennant 1997-11-8 3377 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland area between Pacific Coast Hwy and the bike trail. 30 Comment
  RSA0066583  Harpagonella palmeri Fred M. Roberts, Tony Bomkamp 1997-3-13 4981 Orange Rancho Mission Viejo: Christianitos Canyon, 4km ESE Viejo Survey Mark. 155 Comment
  RSA0066585  Harpagonella palmeri Fred M. Roberts 1993-4-23 4855 Orange Mission Viejo: Mesa just W of Bridgeton Road near jct. of Ridgemark above Arroyo Trabuco, 4.8 km NNE Trabuco Survey Marker. 152 Comment
  RSA0066592  Harpagonella palmeri R. A. Hamilton 2001-5-17 s.n. Orange Crystal Cove State Park, near Pelican Point. The site is located 305m south of Pacific Coast Highway and 671m east of Cameo Shores Drive. 30 Comment
  HSC93899  Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game 0 Comment
  SD152934  Hedypnois cretica Steve Boyd, Tim Ross 1992-5-20 7462 Orange Southern Santa Ana Mountains; western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail and spur trail to old mining habitations. 305 Comment
  OBI16349  Hedypnois rhagadioloides Carl B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis St, 1200 Block E side in vacant lot 61 Comment
  CAS-BOT-BC309485  Helenium puberulum John Thomas Howell 1927-7-21 2808 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  POM12888B  Helianthemum scoparium var. vulgare P. A. Munz, J. M. Johnston, I. M. Munz 1922-5-18 5307 Orange Santa Ana River Canyon. 274 Comment
  CAS-BOT-BC305443  Helianthus annuus Ira L. Wiggins 1965-10-24 20285 Orange Along Skyline Drive near intersection with Raymond Street, Fullerton Comment
  RSA0027431  Helianthus annuus Fred M. Roberts 2013-7-18 7665 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  SEINET156042  Helianthus annuus Norman C. Cooper 1944-6-4 1366 Orange Elsinore Mtn. Lookout at top. 1067 Comment
  UC537024  Helianthus annuus Lawrence M. Booth 1932-6-29 1230 Orange Newport Bay Comment
  RSA697136  Helianthus annuus Anonymous s.n. Orange Santa Ana Comment
  POM359985  Helianthus annuus subsp. lenticularis Josephine Derigo 1941-7-25 s.n. Orange Canyon road to Laguna Beach, California. open feilds and road side. Low lands Comment
  IRVC21394  Helianthus gracilentus A. S. Boughey 1968-7-9 414 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA573299  Helianthus gracilentus Steve Boyd, T. S. Ross 1994-9-14 8356 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing near old mining camp. Comment
  IRVC783  Helianthus petiolaris subsp. petiolaris B. Leach 1964-3-8 Orange hills. El Toro Comment
  CHSC26505  Heliotropium curassavicum Roger Shelby 1970-8-22 Orange Ca. 3 mi. N. of Huntington Beach, 1 1/2 mi. So. of Warner Ave. on Pacific Coast Hwy. in Bolsa Bay area. In salt marsh. 0 Comment
  IRVC29807  Heliotropium curassavicum Laura D. Lyons, Mark A. Elvin 2006-9-23 421 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  UCR100455  Heliotropium curassavicum B. G. Pitzer 1996-4-30 2770 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR220028  Heliotropium curassavicum Rebecca T. Vo 2010-6-5 s.n. Orange South Coast, Huntington Beach, Santa Ana River Bike path on west side of the mouth of the Santa Ana River, near Orange County Sanitation Treatment Plant, north of Pacific Coast Hwy and east of Brookhurst St. 1 Comment
  IRVC9340  Heliotropium curassavicum subsp. oculatum B. T. Gittins 1967-6-11 2014 Orange Upper Newport Bay. southern coastal Comment
  CSUSB741  Heliotropium curassavicum var. oculatum Dave Cerf 1971-5-2 Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  RSA232222  Heliotropium curassavicum var. oculatum James Henrickson 1970-7-24 4994 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA650818  Heliotropium curassavicum var. oculatum Daniel Truong 1991-5-13 27 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  CAS-BOT-BC305898  Helminthotheca echioides Ira L. Wiggins 1965-10-18 20278 Orange At NE corner of Chapman Ave. and Victor Dr., Fullerton Comment
  UCSB48227  Helminthotheca echioides Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 5.2 km. ENE San Juan Capistrano by road 100 Comment
  RSA572921  Hemizonia australis J. Mallory 1993-8-27 6366 -D-03 Orange E and north of Cliffs on Mesa, S of Los Patos Ave. and green Street, Bolsa Chica Wetlands. Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  POM5000  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  POM6416  Hemizonia fasciculata P. A. Munz 1919-5-3 2642 Orange Santa Ana River Canyon. Comment
  RSA627746  Hemizonia fasciculata Scott D. White 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, ca. halfway between Berkeley Av. and new freeway (Bonita Cyn.) 37 Comment
  UCR107857  Hemizonia fasciculata Scott D. White, B. Leatherman 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCR228802  Hemizonia fasciculata Dick Newell, Don Millar 2011-5-24 167 Orange Peninsular Range; Santa Ana Mtns., above Outdoor Education Center on MWD service road, 1.6 miles NW (311 deg. ) of Irvine Lake dam 244 Comment
  UCR38084  Hemizonia fasciculata G. Sampson 1985-4-23 85 362 Orange Chino Hills State Park, W end of Telegraph Canyon Comment
  RSA121593  Hemizonia fasciculata A. Lewis 1934-04 s.n. Orange Canada Gubernadora, Corona 579 Comment
  RSA806  Hemizonia laevis J. T. Howell 1927-7-15 406 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA542438  Hemizonia paniculata Fred M. Roberts 1988-5-25 3877 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Mark. 88 Comment
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Apr 29 2020
  POM2134  Hesperocnide tenella D. L. Crawford 1916-07 1959 Orange Near Laguna Comment
  RSA0072389  Heteromeles arbutifolia K. M. Meyer, A. Townesmith, T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mtns., ridge top. 917 Comment
  RSA658198  Heteromeles arbutifolia T. A. Daubert 1991-5-26 657 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  UCSB44177  Heterotheca grandiflora Henneman, J. 1977-5-21 Orange Newport Back Bay 6 Comment
  RSA0075810  Heterotheca grandiflora Minor Warne 1934-5-12 s.n. Orange Newport Bluffs. Comment
  SD81198  Heterotheca grandiflora Darley F. Howe 1971-10-25 Orange Near the corner of Brookhurst and Lincoln Avenue, Anaheim. Comment
  JEPS2412  Heterotheca sessiliflora subsp. echioides L. M. Booth 1932-7-29 1330 Orange Newport Bay Comment
  RSA93359  Heterotheca sessiliflora subsp. echioides F. W. Peirson 1924-8-29 5086 Orange 2.5 miles from Balboa on road inland along creek. Comment
  CHSC26373  Heterotheca sessiliflora subsp. fastigiata James Henrickson 1970-9-5 Orange 2 1/2 miles NW of Huntington Beach; in northern part of Bolsa Chica Salt Marsh. 0 Comment
  RSA653179  Hirschfeldia incana David Barrios 1991-5-8 39 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA0026264  Hoita macrostachya Fred M. Roberts 2013-6-12 7785 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA708734  Hoita macrostachya Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6119 Orange Caspers Wilderness Park, Hot Springs Creek in San Juan Cyn., c.a. 0.36km SSW San Juan Ranger Station, at SR 74 crossing. 197 Comment
  UC1127989  Holodiscus discolor A. Lewis 1934-5-1 423 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1280 Comment
  UCSB47956  Hordeum brachyantherum subsp. californicum Roberts, Dar 1980-5-4 Orange .8 km North Northern tip of Thunderbird Homes, Dana Point 61 Comment
  RSA702992  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-4-10 3370 Orange Donna O'Neill Reserve. Along the high Ridge trail, 518m west of Cristianitos Rd. and 335m south of the E-W access road. The site is 1.1km north of Pico. 189 Comment
  RSA799617  Hordeum intercedens Justin M. Wood 2011-4-12 3652 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  SD255611  Hordeum intercedens D. E. Bramlet 2001-5-15 3143 Orange Santa Ana Mountains Foothills: upper watershed of Deep Canyon, 1300ft E of Krum Reservoir, c. 2 miles SE of San Juan Capistrano, 1200 ft S of Avenida Placida, W of the Prima Desecha landfill (Dana Point 7.5'Q) 200 Comment
  UCR150373  Hordeum intercedens D. E. Bramlet 1998-5-20 2622 Orange Coastal Plains & Basins/Coastal Plains region, San Juan Hills: 488 m west of La Pata Ave. and 1.22 km N of Prima Deshecha Canada. A blue-line drainage 457 m east of the old ridgeline road 149 Comment
  UCR158097  Hordeum intercedens Adrian Wolf 1998-4-25 149 Orange South Coast, San Joaquin Hills, Bommer Canyon, upper central ridge, 1 km NE of Signal Peak 226 Comment
  UCR158154  Hordeum intercedens Adrian Wolf 1998-4-21 127 Orange South Coast, Coastal Hills, Aliso/Woods Canyon Regional Park, Aliso Canyon 0.5 km east of mouth of Woods Canyon, north of access road 55 Comment
  UCR168468  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-15 3436 Orange Donna O'Neill Reserve, SE corner of Reserve 152 m west of Cristianitos Road and 731 m N of Pico, 122 m NW of the SDGE Substation 98 Comment
  UCR207598  Hordeum marinum subsp. gussoneanum O. F. Clarke 2004-5-19 s.n. Orange South Coast, Fairview Park, Costa Mesa 24 Comment
  RSA696594  Hordeum murinum Anonymous s.n. Orange High School Campus. Comment
  HSC10201  Hordeum murinum subsp. leporinum D. W. Snell 1964-3-22 1 Orange 1/2 mi. S of Imperial Hwy., 1 mi. W of Yorba Linda. Comment
  UCR99555  Hordeum murinum subsp. leporinum B. G. Pitzer 1996-4-30 2799 A Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA366540  Horkelia cuneata subsp. puberula N. C. Cooper 1944-6-4 1369 Orange San Juan Canyon. 152 Comment
  RSA542357  Horkelia cuneata subsp. puberula Fred M. Roberts 1988-4-26 3945 Orange San Joaquin Hills, Pelican Hill, 0.4 km SW summit. 183 Comment
  RSA789353  Horkelia cuneata subsp. puberula Naomi S. Fraga, Duncan S. Bell 2009-5-11 2720 Orange Chiquita Trail 762 Comment
  SEINET187061  Horkelia cuneata subsp. puberula P. A. Munz 1936-4-20 14606 Orange Mt Olympus Laguna Beach 152 Comment
  UCR256940  Horkelia cuneata var. puberula Naomi Fraga, Duncan S. Bell 2009-5-11 2720 Orange Peninsular Range; Santa Ana Mountains, Chiquita Trail, Lion Canyon 762 Comment
  RSA792565  Hornungia procumbens Justin M. Wood 2011-2-28 3272 Orange South Coast: Santa Ana River, marsh just upstream of Pacific Coast Highway. Plants collected throughout the marsh and along the adjacent bike path. 0 Comment
  CAS-BOT-BC55487  Hornungia procumbens Helen D. Geis 1902-3-21 s.n. Orange Balsa Chica. Comment
  UCR186590  Hydrocotyle ranunculoides Robert DeRuff 1996-5-6 493 Orange Southern Coast, Newport Beach, Newport Back Bay, streambed at 23rd St. 3 Comment
  POM48470  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  RSA80332  Hydrocotyle verticillata J. T. Howell 1927-7-5 2658 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UC2061630  Hypericum canariense R. E. Riefner Jr. 2010-6-9 10 -52 Orange City of San Juan Capistrano, along McKraken View Trail at San Juan Creek Road E of I-5 Freeway. Comment
  RSA16349  Hypericum formosum var. scouleri P. C. Everett 1935-6-18 7184 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  RSA732168  Hypochaeris glabra A. C. Sanders, Fred M. Roberts 2008-3-25 34538 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA789497  Iberis gibraltarica John Murphy 1938-6-6 14 Orange Birch Park Comment
  CAS-BOT-BC438782  Ipomoea cairica R. E. Riefner, Jr. 2012-11-27 12 -563 Orange City of Laguna Beach, South Crescent Beach, Circle Way near Cliff Drive. 3 Comment
  RSA0038505  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 -563 Orange city of laguna Beach, South Crescent Beach, Circle Way near Cliff Drive 3 Comment
  SD247408  Ipomoea cairica R. E. Riefner Jr. 2012-11-27 12 563 Orange City of Laguna Beach, Southe Crescent Beach, Circly Way near Cliff Drive. 3 Comment
  CAS-BOT-BC311656  Isocoma menziesii var. vernonioides David D. Keck 1932-9-30 1906 Orange Dana Point, near San Juan Capistrano Comment
  CAS-BOT-BC311732  Isocoma menziesii var. vernonioides L. R. A. 1901-6-1 1783 Orange San Joaquin Hills Comment
  RSA234537  Isocoma menziesii var. vernonioides James Henrickson 1970-9-5 5317 Orange 3.5 miles NW of Huntington Beach, 0.25 mile SE of Warner Ave. in Lower Littoral zone of Bolsa Chica Salt Marsh along outer Bolsa Bay. 0 Comment
  UC1424944  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange slopes above Santa Ana River Canyon (on Rancho Santa Ana) Comment
  RSA0113507  Isocoma menziesii var. vernonioides Lyman Benson 1945-10-7 11863 Orange Brea Canyon, 2 miles north of Brea. Mt. Range: Hills. 152 Comment
  RSA644979  Isolepis cernua R. E. Riefner 2000-2-19 20 -118 Orange Santa Ana Mtns. NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek and immediately N. of major stream fork. 305 Comment
  IRVC9273  Isomeris arborea B. T. Gittins 1963-3-3 9 Orange [Lower] Newport Bay, sandy bluff at entrance to Balboa Island Newport Beach Comment
  UC1543008  Isomeris arborea Donald G. Nelson 1935-4-14 293 Orange Newport Beach; along main coast highway, edge of mesa facing Newport Bay and the ocean Comment
  RSA39344  Iva axillaris subsp. robustior E. L. Paddock 1943-6-16 12732 Orange Santa Fe Railway 0.25 mile W of Esperanza Station Grounds (opposite Ernest Yorba property). Comment
  SEINET11446674 Image available Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay 0 Comment
  RSA0059091  Jaumea carnosa Louis C. Wheeler 1932-6-22 846 Orange Newport Bay. 0 Comment
  POM11677  Jepsonia parryi P. A. Munz, I. M. Johnston 1922-5-18 5314 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line., side canyon. 457 Comment
  UCR24414  Jepsonia parryi John C. Roos 1936-10-9 2301 Orange Santa Ana Canyon Comment
  POM9770  Jepsonia parryi Gordon Nicholsen 1921-01 s.n. Orange Santa Ana Canyon. Comment
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Aug 8 2010
  UCSB52422  Jepsonia parryi Roberts, Fred; Polek, M. 1982-11-7 Orange Santa Ana Mtns, Lion Canyon, Chiquito Basin, Trail, 3.6km S Blue Jay Campground; 2.4km, NNE Lower San Juan Picnic Ground 800 Comment
  UC112093  Juglans E. B. Babcock 1907-9-9 Orange on ranch of E.S. Ware 1 mi n Garden Grove Comment
  SD42257  Juglans californica Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds. Comment
  UCR280608  Juglans hindsii R. E. Riefner Jr. 2015-11-21 15- 451 Orange South Coast, city of Orange, Irvine Regional Park, south end of Park, west of railroad track near Petting Zoo 165 Comment
  RSA614279  Juncus acutus subsp. leopoldii L. C. Wheeler 1932-6-25 869 Orange Newport Bay: Inland arm of.. Sea level. Comment
  UC842095  Juncus acutus subsp. leopoldii Louis C. Wheeler 1932-6-25 869 Orange inlet arm of Newport Bay Newport Bay 0 Comment
  UCR158025  Juncus acutus subsp. leopoldii Adrian Wolf 1998-7-21 360 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 1.5 km up canyon from Pacific Coast Hwy, 2.5 km east of El Moro Trailer park 91 Comment
  UCR193797  Juncus balticus A. C. Sanders, Fred M. Roberts 2008-7-3 35706 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  POM7126  Juncus balticus subsp. ater Phillip A. Munz, L. T. Street, G. Williams 1919-5-3 2654 Orange Santa Ana River Canyon. Comment
  RSA748262  Juncus balticus subsp. ater A. C. Sanders, Mitch Provance 2008-5-20 35395 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  POM201724  Juncus bufonius L. M. Booth 1934-5-24 1088 Orange Newport Bay. Comment
  UCSB48028  Juncus bufonius var. bufonius Roberts, Fred 1980-5-4 Orange Mission Viejo: along Santa Fe Railroad and Camino Capistrano; 1.7km N Crown Valley Parkway; 1.1km S BM 316 14 Comment
  RSA0027429  Juncus patens Fred M. Roberts 2013-7-18 7662 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  RSA683076  Juncus phaeocephalus Scott D. White, Amanda Duchardt 2003-5-1 9151 Orange Canada Gobernadora. 122 Comment
  RSA0014060  Juncus rugulosus Fred M. Roberts, R. E. Riefner 2010-5-30 7134 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  RSA603360  Juncus rugulosus Scott D. White 1997-6-12 5317 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA715247  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 Orange San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 366 Comment
  CAS-BOT-BC227115  Juncus textilis A. C. Sanders; Fred M. Roberts 2008-7-16 35855 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hangman's Tree Canyon 395 Comment
  UCR194996  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR275232  Juniperus virginiana Robert DeRuff 1998-1 508 Orange South Coast, upper Newport Bay, below and north of intersection of Back Bay Dr., with Eastbluff Dr. 3 Comment
  CLARK-A1528-5706  Jussiaea repens var. peploides John C. Roos 1949-10-1 4685 Orange Doheney Beach Comment
  RSA293256  Keckiella antirrhinoides D. C. Michener 1980-6-5 3666 Orange Santa Ana Mtns near El Cariso. Steep slopes at head of Dickey Canyon (Alberhill Quadrangle) with Asenostoma. 900 Comment
  CAS-BOT-BC235529  Keckiella antirrhinoides var. antirrhinoides Robinson; Crocker 1916-3-28 999 Orange Santa Ana Mt Comment
  RSA401707A  Keckiella cordifolia M. B. Dunkle 1934-6-18 3996 Orange San Juan Canyon 305 Comment
  RSA769621  Keckiella cordifolia E. W. Lathrop 1974-6-27 7409 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC729869  Keckiella cordifolia Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  JEPS1808  Kickxia elatine Frank W. Peirson 1927-9-25 7676 Orange flats below Wintersberg Comment
  RSA539358  Koeleria macrantha Fred M. Roberts, Carol A. Roberts 1988-6-9 4081 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit., 3730500mN, 449000mE 1542 Comment
  RSA679227  Koeleria macrantha Fred M. Roberts 2003-6-25 5943 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  CAS-BOT-BC271300  Koeleria pyramidata Le Roy Abrams 1901-6-1 1832 Orange Summit of Santiago Pk. Comment
  CAS-BOT-BC174783  Koelreuteria bipinnata T. B. Salvato; Katie Kurtz; Mitch Provance 2006-10-15 1903 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  CDA9461  Koelreuteria bipinnata D. G. Kelch, Mark Elvin 2006-12-9 6 .556 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  UCR184669  Koelreuteria bipinnata Dean Kelch 2006-12-9 06 .556 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  UCR186506  Koelreuteria bipinnata T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1903 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  IRVC29794  Koelreuteria paniculata Mark A. Elvin, Dean Kelch 2006-12-9 5320 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA759155  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-6-17 35457 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  UCR232763  Lagophylla ramosissima subsp. ramosissima Robt. L. Allen, Linnell R. Allen, Charles W. Allen 2005-10-9 12529 Orange Peninsular Range; Santa Ana Mtns., Los Pinos Potrero, opposite entrance to Falcon Group Camp 1011 Comment
  UCD63274  Lagurus ovatus R. M. Love 1942-4-16 10 Orange 8 mi. east of Santa Ana. Comment
  RSA732071  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA737548  Lamarckia aurea Fred M. Roberts 2008-3-12 6713 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCD63304  Lamarckia aurea W. W. Robbins 1931-5-11 2202 Orange Santa Ana. Comment
  UCR220082  Lamium amplexicaule Dick Newell, Don Millar 2010-3-2 006 Orange Peninsular Range; Santa Ana Mtns. Foothills, 0.3 mi. north of Irvine Lake dam near Fremont Canyon 210 Comment
  RSA0013588  Lasthenia coronaria D. E. Bramlet 2008-4-15 4179 Orange Ridgeline 374m N of Hicks Cyn. Haul Rd. & 335m E of the Asphalt Plant 195 Comment
  UCR102024  Lasthenia glabrata B. G. Pitzer 1997-3-25 3015 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  RSA3172  Lasthenia glabrata subsp. coulteri C. B. Wolf 1932-3-8 2691 Orange Sunset Beach, near S city limits 2 Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  POM48548  Lasthenia gracilis F. M. Reed 1925-5-14 4968 Orange Aliso Canon. Comment
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May 1 2011
  UC891317  Lasthenia gracilis I. W. Clokey 1932-3-1 5325 Orange Sugar Loaf below Arch Beach Comment
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Nov 2 2011
  UCR51672  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange South Coast, Corona Del Mar, bluffs above the beach 15 Comment
  UCSB48051  Lasthenia gracilis Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N of Dana Hills High School; 1.9 km. W of Marco Forster Junior High School 100 Comment
  RSA3164  Lathyrus vestitus subsp. alefeldii C. B. Wolf 1932-3-8 2699 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  IRVC2214  Lathyrus vestitus subsp. laetiflorus M. Savage 1965-3-1 Orange Corona del Mar, Golf Course. Newport Beach Comment
  UCR97637  Lathyrus vestitus var. vestitus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1649 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 1.6 mi. SE of Ortega Hwy (Calif. Hwy 74) on Rd. 7-S14 549 Comment
  IRVC18939  Layia platyglossa T. L. Ackerman 1982-4-24 82 -260 Orange S of Live Oak Canyon Rd., on dirt trail from road to Methodist Church; disturbed chaparral; Santa Ana Mountains Comment
  UCR138401  Lemna Scott D. White, Brian Leatherman 1997-6-12 5325 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  IRVC16187  Lepechinia cardiophylla Gordon A. Marsh, Karlin G. Marsh 1978-5-13 s.n. Orange Santa Ana Mtns: Claymine Canyon; road to Coal Canyon Peninsular Ranges 433 Comment
  UCR27070  Lepechinia cardiophylla T. P. Krantz 1981-6-18 s.n. Orange Santa Ana Mtns, Ridge west of Sierra Peak along the roadside Comment
  UCD115329  Lepidium appelianum Ethelbert Johnson 1931-5-1 2198 Orange Santa Ana. Comment
  JEPS53664  Lepidium lasiocarpum var. lasiocarpum L. M. Booth 1932-5-24 1084 Orange Newport Bay Comment
  RSA325  Lepidium nitidum J. T. Howell 1928-2-7 813 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  SD28156  Lepidium nitidum Carl B. Wolf 1932-2-15 2658 Orange Rancho Santa Ana Botanic Garden near the Tan Oak Beds 185 Comment
  UCR102019  Lepidium nitidum B. G. Pitzer 1997-3-25 3026 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, along the bike trail 30 Comment
  UCR192487  Lepidium nitidum A. C. Sanders, Fred M. Roberts 2008-3-25 34515 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  OBI70646  Lepidium pinnatifidum Louis C. Wheeler 1947-5-4 6476 Orange 4.5 mi S of Santa Ana: South Main Street extension, 0.8 mi S of Newport Ave Comment
  UC537122  Lepidium virginicum Lawrence M. Booth 1932-5-24 1098 Orange Newport Lagoon Comment
  RSA773551  Lepidium virginicum var. robinsonii Fred M. Roberts 2008-6-5 7033 Orange Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.2 km ENE Rattlesnake Reserovir spillway and 2.3 km WNW Bee Peak 202 Comment
  UCR103217  Lepidium virginicum var. robinsonii Scott D. White 1997-2-19 4696 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA1446  Lepidospartum squamatum J. T. Howell 1929-2-6 1223 Orange Floor of Claymine Canyon, Santa Ana Mts 152 Comment
  RSA717044  Lepidospartum squamatum Fred M. Roberts, Chris M. Barnhill 2005-9-27 6287 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano. 27 Comment
  SD127550  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Bottom of lower Trabuco Canyon, Santa Ana Mts. Comment
  CAS-BOT-BC274018  Leptochloa fusca subsp. uninervia Peter H. Raven 1961-10-15 16851 Orange Santa Ana River Bed at Anaheim Street crossing, Anaheim 60 Comment
  UCD63972  Leptochloa fusca subsp. uninervia Beecher Crampton 1965-10-27 7581 Orange 2 mi. east of Irvine, Irvine Blvd. Comment
  CLARK-A1528-4716  Leptochloa uninervia John C. Roos 1936-10-9 2509 Orange Olive Comment
  POM3492  Leptosiphon androsaceus Crawford s.n. Orange Laguna Mts. 305 Comment
  POM49705  Leptosiphon liniflorus L. R. Abrams 1901-06 1797 Orange Trabuco Canyon Comment
  UC1618069  Leptosiphon parviflorus Donald G. Nelson 1935-7-6 203 Orange San Juan Canyon Comment
  RSA172340  Leymus condensatus R. F. Thorne 1963-7-26 32843 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest 762 Comment
  RSA51  Leymus condensatus E. R. Johnson 1927-6-10 77 Orange Rancho Santa Ana. Alt 500 ft. 152 Comment
  RSA0011628  Leymus triticoides Rankin s.n. Orange Santa Ana Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  RSA377146  Lilium humboldtii subsp. ocellatum Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  IRVC29763  Limonium californicum Barry S. Nerhus, Mark A. Elvin 2006-11-4 8 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  POM122839  Limonium californicum var. mexicanum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA658207  Limonium perezii T. A. Daubert 1991-5-19 672 Orange Tucker Wildlife Sanctuary, Modjeska Canyon nature trail. Comment
  UCR129919  Limonium ramosissimum R. E. Riefner Jr. 2002-5-2 20- 92 Orange Upper Newport Bay, Jamboree Rd. at Bayview Dr., edge of Newport Beach Q. 21 Comment
  CAS-BOT-BC226775  Linanthus californicus John Thomas Howell 1927-6-26 2610 Orange Claymine Canon [Canyon], n. Santa Ana Mts. 457 Comment
  RSA2111  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  RSA468463  Linanthus californicus Albert J. Perkins 1920-5-16 s.n. Orange Trabuco Canyon, Comment
  RSA5277  Linanthus californicus B. D. Stark 1932-12-15 4453 Orange Rancho Santa Ana, slope above grove #4. 145 Comment
  SD114196  Linanthus californicus Darley F. Howe 1946-6-3 1413 Orange Santa Ana Mountains. Comment
  UCD39066  Linanthus californicus Beecher Crampton 1963-5-7 6789 Orange 11 miles northeast of San Juan Capistrano, State Hwy. 74, Lower San Juan Canyon, Santa Ana Mtns. Comment
  CLARK-A1528-3471  Linanthus dianthiflorus John C. Roos 1937-2-23 1306 Orange Laguna Beach Comment
  JEPS58364  Linanthus dianthiflorus Alice King Mar 1908 Orange near Anaheim; Santiago Creek Comment
  UC511103  Linanthus dianthiflorus Lyman Benson 1932-3-26 3192 Orange Dana Point 60 Comment
  UC729697  Linanthus dianthiflorus Carl B. Wolf 1932-3-8 Orange Santiago Dam, w base of Santa Ana Mts. Santa Ana Mts. 304 Comment
  UCR191428  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-4-8 34778 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCSB31294  Linanthus dianthiflorus Higley, L. 1978-3-5 Orange 2mi north of Crown Valley Rd., 1 mi east of Pacific Cst. Hwy. in Corona Del Mar 60 Comment
  UCR132991  Linanthus parviflorus Adrian Wolf 2000-5-3 465 Orange Santa Ana Mtns., North Ranch Policy Plan Area, upper Fremont Canyon, eastern tributary 579 Comment
  RSA752710  Linaria canadensis Fred M. Roberts 2008-3-19 6787 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 60 Comment
  RSA718  Linaria canadensis var. texana J. T. Howell 1928-2-25 835 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA685161  Lippia nodiflora Scott D. White, Michael Honer 2003-7-10 9626 Orange Hills above Trampas Canyon, just south of Ortega Hwy. 91 Comment
  UCSB15005  Lithophragma heterophyllum Breedlove, Dennis 1962-3-9 Orange 14.3 miles east of San Juan Capistrano on State 74 335 Comment
  POM193486  Lobelia dunnii var. serrata Helen E. Sweet 1928-08 s.n. Orange Santiago Canyon. Comment
  UCR267216  Logfia filaginoides Fred M. Roberts, Lee Ann Caranza & Eliza Maher 2009-4-7 7146 Orange South Coast Region, DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor 50 Comment
  SD233258  Logfia gallica R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49811 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  CHSC35329  Lolium multiflorum James Henrickson 1972-10-21 8063 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. In grassland eventually to be used for large Newport Beach Business Center. 45 Comment
  RSA184121  Lolium perenne I. L. Wiggins 1965-10-24 20290 Orange At corner of Yorba Linda and State College Blvds., Fullerton Comment
  JEPS69291  Lolium temulentum Lawrence M. Booth 1932-5-19 1078 Orange Newport Bay Comment
  RSA0048656  Lomatium dasycarpum Keith E. Hoffmaster 1934-4-22 190 Orange Santa Ana Mts. [Orange or Riverside County] Comment
  RSA773521  Lomatium dasycarpum subsp. dasycarpum Fred M. Roberts 1999-5-3 5212 Orange Lomas de Santiago: Loma Ridge, Central Limestone Canyon, west slope, 2.2 km NW Bolero Lookout and 0.8 km NE Bolero Spring. 397 Comment
  SEINET6960363  Lomatium utriculatum Wanda P. Vestal, A. G. Vestal 1955-3-24 3464 Orange Trabuco Canyon, about 5 mile east of El Toro. Comment
  POM18126  Lonicera subspicata var. denudata P. A. Munz 1923-9-7 7738 Orange Santiago Peak, Santa Ana Mountains 1677 Comment
  RSA5337  Lonicera subspicata var. denudata B. D. Stark 1933-1-4 4489 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 213 Comment
  RSA0023266  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49781 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR192478  Lotus hamatus A. C. Sanders, Fred M. Roberts 2008-3-25 34520 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0006681  Lotus hamatus J. T. Howell 1927-6-8 56 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA603367  Lotus heermannii Scott D. White, Brian Leatherman 1997-6-12 5338 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  RSA734806  Lotus humistratus A. C. Sanders, Fred M. Roberts 2008-5-6 35254 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UCR193935  Lotus purshianus A. C. Sanders, Fred M. Roberts 2008-7-16 35854 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  CDA25636  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-5-6 35232 Orange Peninsular Range; Santa Ana Mountains; Lomas de Santiago, lower Hicks Canyon, just above tollway (Highway 241) crossing on Irvine Haul Road, near debris basin. Comment
  RSA681848  Lotus salsuginosus Scott D. White, Michael Honer 2003-6-12 9541 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  RSA697974  Lotus salsuginosus H. Dittmer 1932-5-16 s.n. Orange Road to Irvine Dam Comment
  RSA687515  Lotus salsuginosus var. salsuginosus Fred M. Roberts, David E. Bramlet 2003-4-10 5653 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, ridges west of Cristianitos Canyon, 1.35km SW Gato Gate and 1.18km W Cristianitos Road. 192 Comment
  POM276672  Lotus scoparius Lyman Benson 1932-3-26 3200 Orange Dana Point. 60 Comment
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Apr 29 2008
  RSA3183  Lotus scoparius C. B. Wolf 1932-3-8 2680 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  RSA697977  Lotus scoparius Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  IRVC2255  Lotus scoparius subsp. scoparius S. Park 1965-4-8 Orange Corona del Mar, between Narcissus Ave. and Marigold Ave. Newport Beach Comment
  UCR154288  Lotus scoparius var. scoparius Mark A. Elvin 2004-5-2 3406 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR193542  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  POM250348  Lotus strigosus I. W. Clokey 1932-3-1 5328 Orange Laguna Beach. Comment
  POM50643  Lotus strigosus L. R. Abrams 1901-06 s.n. Orange Laguna Comment
  POM9282  Lotus strigosus P. A. Munz, R. D. Harwood 1920-4-24 3770 Orange Sierra [Freemont] Canyon 366 Comment
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Sep 17 2011
  RSA588706  Lotus strigosus Fred M. Roberts, Carol A. Roberts 1990-5-23 4644 Orange Santa Ana Mtns: West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5 km SE Los Pinos Peak. 756 Comment
  IRVC14756  Lotus strigosus var. hirtellus A. S. Boughey 1968-4-23 217 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  IRVC20398  Lotus strigosus var. strigosus Fred M. Roberts 1983-3-27 947 Orange Dana Point headlands: just south of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School, southern coastal 80 Comment
  RSA406318  Lotus strigosus var. strigosus M. B. Dunkle 1939-3-26 5233 Orange San Juan Canyon 30 Comment
  RSA697981  Lotus subpinnatus Unspecified s.n. Orange Orange County park Comment
  RSA562813  Lotus wrangelianus Steve Boyd, T. S. Ross 1992-5-20 7485 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon at the Lucas Canyon Trail crossing. 320 Comment
  UCR266379  Ludwigia D. E. Bramlet 2009-11-20 4426 Orange South Coast, San Diego Creek between Irvine and Newport Back Bay 8 Comment
  POM20186  Ludwigia peploides subsp. peploides L. M. Booth 1932-6-7 1164 Orange Newport Lagoon. Comment
  RSA502  Ludwigia peploides subsp. peploides J. T. Howell 1927-7-14 396 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM201839  Lupinus L. M. Booth 1932-5-19 1072 Orange Newport Bay. Comment
  UC1543224  Lupinus Donald G. Nelson 1935-3-23 182 Orange near dump just s of E. Orange thorpe Ave., E. Fullerton E. Fullerton Comment
  RSA413650  Lupinus albifrons var. eminens Albert J. Perkins 1923-6-24 s.n. Orange Silverado Canyon Comment
  RSA699718  Lupinus albifrons var. eminens Keith E. Hoffmaster 1928-5-23 531 Orange San Onofre. Comment
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Nov 19 2013
  RSA734685  Lupinus bicolor A. C. Sanders, T. B. Salvato 2008-5-13 35340 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence. 366 Comment
  SD227815  Lupinus bicolor B. Pitzer 1997-4-15 3147 Orange Crystal Cove State Park, Along Moro Canyon Trail, from beginning to a point ca. 1.75 mi. up the canyon 49 Comment
  UCR101530  Lupinus bicolor B. G. Pitzer 1997-4-15 3147 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  UCSB47626  Lupinus bicolor Roberts, Fred 1980-5-3 Orange Santa Ana Mountains: Main Divide Truck Trail, 1.1 km. SE Blue Jay Campground; 2.6 km. WSW El Cariso Guard Station 902 Comment
  IRVC2288  Lupinus bicolor subsp. umbellatus H. Ellis 1965-3-18 HS 0428 Orange Corona Del Mar Beach Southern Coastal Comment
  IRVC2292  Lupinus bicolor subsp. umbellatus D. Ibbetson 1965-4-18 HS 0429 Orange Newport Beach Southern Coastal Comment
  UCR270351  Lupinus concinnus Dick Newell, Judy Booth 2016-4-24 423 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, 0.6 miles NW of Elsinore Peak on South Main Divide Rd. 973 Comment
  RSA594823  Lupinus concinnus subsp. concinnus Fred M. Roberts Jr., Sandra Leatherman, Brian Leatherman 1994-4-24 4917 Orange Santa Ana Mtns.: Lower Hot Springs Canyon, ca. 1 km NNW Juan Rancho Survey mark. 268 Comment
  RSA619240  Lupinus densiflorus R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  CAS-BOT-BC215310  Lupinus excubitus var. excubitus C. B. Wolf 1931-5-20 2056 Orange Along Santa Fe RR, 1 mile W of Esperanza, Santa Ana Canyon 106 Comment
  HSC14829  Lupinus hirsutissimus S. M. Clapp 1966-4-7 17 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  IRVC2326  Lupinus hirsutissimus Kathy Durica 1965-4-25 s.n. Orange Silverado Canyon Santa Ana Mountains Comment
  CLARK-A1528-2843  Lupinus latifolius C. P. Smith 1937-5-10 Orange San Juan Capistrano Comment
  LA205140  Lupinus latifolius var. parishii Norman C. Cooper; 1944-6-4 1336 Orange San Juan Canyon 548 Comment
  UCR228793  Lupinus longifolius Dick Newell, Don Millar 2011-5-3 145 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA681889  Lupinus microcarpus var. microcarpus Scott D. White, Michael Honer 2003-6-19 9574 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Steep mountain slopes south of San Juan Ck and west of Trampas Cyn. 91 Comment
  IRVC16565  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  IRVC16566  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, Karlin G. Marsh 1978-5-2 s.n. Orange Santa Ana Mountains; Silverado Truck Trail. Peninsular Ranges 884 Comment
  POM156682  Lupinus sparsiflorus subsp. sparsiflorus L. R. Abrams 1903-4-19 3277 Orange San Juan Comment
  POM6382  Lupinus sparsiflorus subsp. sparsiflorus Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2632 Orange Santa Ana River Canyon Comment
  RSA13190  Lupinus sparsiflorus subsp. sparsiflorus Percy C. Everett 1935-5-6 6754 Orange Santa Ana canyon, Rancho Santa Ana, Railroad embankment. 152 Comment
  RSA649056  Lupinus sparsiflorus subsp. sparsiflorus D. E. Bramlet 2000-4-21 2991 Orange Ridge 488m northeast (above) the MWD access road. the site is 1.3 km west of Blind Canyon and 640m north of Irvine Park. 268 Comment
  IRVC19804  Lupinus sparsiflorus subsp. sparsiflorus Karlin G. Marsh 1983-4-11 s.n. Orange Laguna Beach: Sycamore Hills, main ridge, head of El Toro-4 canyon. Southern Coastal Comment
  IRVC2342  Lupinus succulentus 1965-4-18 HS 0416 Orange Trabuco Canyon. Santa Ana Mountains Comment
  UCR223415  Lupinus succulentus Dick Newell, Don Millar 2011-2-8 051 Orange Peninsular Range; Santa Ana Mtns., lower Black Star Canyon, along access road ('State Spur') to Lakeview Rd. 260 Comment
  UCR223430  Lupinus succulentus Dick Newell, Don Millar 2011-2-15 062 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  SEINET12154823  Lupinus succulentus J. F. Bright, Wyman, C. 1933-1 8101 Orange Santa Ana foothills Comment
  IRVC2357  Lupinus truncatus A. S. Boughey 1965-6-15 149 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  IRVC24509  Lupinus truncatus Fred M. Roberts, Gordon Marsh 1986-2-28 2613 Orange Lateral to English Canyon along Vista Del Lago; 3.4km ENE El Toro Fire Station, in ravine at base of north-facing slope. Mission Viejo 236 Comment
  RSA732078  Lupinus truncatus A. C. Sanders, Fred M. Roberts 2008-3-25 34566 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  RSA758902  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 Orange Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  RSA788818  Lupinus truncatus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49803 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UC450772  Lupinus truncatus Fay A. MacFadden 1931-3-1 2939 Orange Laguna Beach Comment
  UCSB21320  Lupinus truncatus Keefe, Joseph 1967-3-26 Orange South edge of Newport Bay; on Back Bay Drive; 2.0 miles northeast of intersection with Jamboree Drive; Corona del Mar 3 Comment
  IRVC8858  Lupinus truncatus Charles W. Sexton 1964-4-23 s.n. Orange Newport Beach. Southern Coastal Comment
  RSA428834  Lycium californicum Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  UCSB52453  Lycium californicum Roberts, Fred 1983-3-10 Orange Dana Point Headlands; cliff west of and above Dana Point Harbor, south of old Cove Rd.; 0.8km S Richard Henry Dana School 60 Comment
  UCR193929  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA679219  Madia gracilis Fred M. Roberts 2003-6-17 5913 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  RSA94369  Madia gracilis J. T. Howell 1927-6-26 2613 Orange Claymines Canyon, Santa Ana Mts Comment
  CAS-BOT-BC206260  Malacothamnus fasciculatus John Thomas Howell 1927-6-20 2557 Orange North side of Santa Ana Canyon 243 Comment
  UCR190965  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-4-22 35058 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR197686  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-9-18 36064 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR228776  Malacothamnus fasciculatus Dick Newell, Don Millar 2011-5-24 163 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  UC1122014  Malacothamnus fasciculatus var. fasciculatus A. Lewis Apr 1934 398 Orange Tomato Spring Canyon 182 Comment
  CAS-BOT-BC175460  Malacothrix saxatilis A. C. Sanders 2008-4-29 35120 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, western end of Loma Ridge on road to sheriff's training facility, c. 1.5 mi. SW of Santiago Reservoir 335 Comment
  UCR193543  Malacothrix saxatilis A. C. Sanders, Fred M. Roberts 2008-7-3 35669 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  RSA714451  Malacothrix saxatilis var. saxatilis R. E. Riefner 1999-8-21 99 -360 Orange Laguna Beach, west of Pacific Coast Hwy., vicinity of Aliso Creek Park and south to West Drive. 0 Comment
  POM6233  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso Canyon Comment
  UCR106283  Malacothrix saxatilis var. tenuifolia B. G. Pitzer, M. Georgiady 1997-4-5 3076 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR247892  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 2012-7-18 7661 Orange SAN JOAQUIN HILLS: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill 52 Comment
  UCR67012  Malephora crocea A. C. Sanders 1990-10-6 10188 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  UCSB16199  Malephora crocea Valentine, D. 1963-2-23 Orange Above Dana Point Pier, 2 mi. N of Doheny Beach State Park, 4 mi. N. of junction U.S. 101 and 101A at San Clemente 10 Comment
  UCSB34482  Malephora crocea Ferren, Wayne 1980-8-27 Orange Newport Backbay; just W of Backbay Drive, ca. 2 km. NE of Rt. 1, Newport Beach Comment
  RSA48858  Malephora crocea J. C. Roos 1949-10-1 4687 Orange Doheney Beach. [Now Capistrano Beach] Comment
  UC68860  Malosma laurina H. M. Hall July, 1905 6731 Orange Santa Ana R. Comment
  UCR208048  Malosma laurina D. E. Bramlet 2004-5-27 3594 Orange Donna O'Neill Reserve, SW corner of Reserve, just east of the Telaga development, 1.43 km west of Cristianitos Road and 1.37 km N of Pico 183 Comment
  RSA42673  Malosma laurina H. P. Bracelin 1942-11-22 2369 Orange Southern & Lower California Comment
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Jun 13 2012
  SEINET10870270  Malosma laurina Charlene A. Bennett 1976-7-21 Bennett 435 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 152 Comment
  RSA732087  Malva parviflora A. C. Sanders, Fred M. Roberts 2008-3-25 34534 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCR109662  Malva parviflora G. S. Nuessly 1980-11-27 s.n. Orange Tustin. SE corner of 17th St. and Yorba Ave. 52 Comment
  HSC79313  Malva parviflora W. R. Marsh Aug 1972 37 Orange Between Artesia and Buena Park, E side of Artesia Ave., 1.5 mi. NW of Western Ave. 23 Comment
  RSA5945  Malva parviflora Carl B. Wolf 1932-7-7 3857 Orange 300 ft S of Bryant Ave, 0.5 miles E of Los Alamitos Blvd. (300 ft S of NE corner of SE 1/4 sect 30) 8 Comment
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Apr 9 2014
  UCR237831  Malvella leprosa Mark A. Elvin 2003-2-2 2283 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA441219  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  RSA441224  Marah macrocarpa E. Crow 1929-2-22 161 Orange Santa Ana Mts., Calif Comment
  RSA652419  Marah macrocarpa Harvey Kennedy 1949-2-20 s.n. Orange Newport Beach, back bay. 9 Comment
  RSA657  Marrubium vulgare J. T. Howell 1927-7-22 457 Orange Botany Garden, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCR208991  Marsilea vestita Arthur W. Haupt 1935-4-12 s.n. Orange South Coast, Costa Mesa 30 Comment
  UC1543207  Matricaria discoidea Donald G. Nelson 1935-3-24 188 Orange s side Santa Ana Canyon (along highway to Riverside County, ne Orange County) Comment
  RSA113265  Matthiola incana E. K. Balls 1955-4-4 20423 Orange Coastal Strand, west end of Newport Beach. 3 Comment
  RSA733697  Medicago hispida Keith E. Hoffmaster 1927-2-17 439 Orange Santa Ana Comment
  RSA709724  Medicago polymorpha J. B. Anderson 1966-4-16 581 Orange Corona Del Mar: Buck Gully - Little Corona Beach. 0 Comment
  RSA755559  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR192459  Medicago rigidula A. C. Sanders, Fred M. Roberts 2008-3-25 34527 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCD170851  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-5-6 35258 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro. 470 Comment
  UCR246483  Medicago truncatula R. E. Riefner Jr. 2011-5-20 11- 55 Orange South Coast, city of San Clemente, Avenida La Pata one block west of Calle Extremo at entrance to Richard Steed Memorial Park 161 Comment
  UCR186145  Melaleuca citrina Robert DeRuff 1999-3-5 512 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr. between Big Canyon and Eastbluff Dr. 15 Comment
  RSA722086  Melaleuca nesophila R. E. Riefner Jr. 2007-3-18 7 -151 Orange City of Newport Beach, N shore of Newport Bay, North Star Beach, general vicinity of North Star Ln. and Polaris Dr. 9 Comment
  IRVC26847  Melica frutescens S. D. White 1997-3-28 4840 Orange Above Modjeska Canyon, proposed water tank site. Santa Ana Mountains 427 Comment
  LA10610  Melica imperfecta A. M. Johnson; 1934-4-15 4416 Orange Carmen's, Laguna Beach Comment
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Aug 29 2015
  RSA403492  Melica imperfecta Thekla Mohr 3219 Orange Laguna. Comment
  RSA773501  Melica imperfecta Fred M. Roberts 1999-5-14 5221 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 502 Comment
  UC1543191  Melica imperfecta Donald G. Nelson 1935-4-6 213 Orange e of San Juan Capistrano (San Juan Canyon, n of summer ranger station near the main highway, s of Cleveland National Forest); Santa Ana Mountains, San Juan Canyon Comment
  UCR191361  Melica imperfecta A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34628 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 290 Comment
  SEINET11678864  Melica imperfecta J. F. Bright, Wyman, C. 1933-1 8214 Orange in foothills near Laguna Beach Comment
  IRVC2397  Melilotus albus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC29824  Melilotus albus Artie Thomas, Mark A. Elvin 2006-9-23 609236 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  RSA401  Melilotus albus J. T. Howell 1927-7-19 443 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  HSC15021  Melilotus indicus S. M. Clapp 1966-4-7 29 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon. 152 Comment
  HSC7688  Melilotus indicus J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  IRVC2409  Melilotus indicus S. Holloway Apr 1965 s.n. Orange Corona del Mar. Newport Beach Comment
  IRVC2410  Melilotus indicus Debbie Frees 1965-3-13 s.n. Orange Silverado Canyon. Santa Ana Moutnains Comment
  IRVC2415  Melilotus indicus J. B. Anderson 1966-4-16 578 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  UC537000  Melilotus indicus Lawrence M. Booth 1932-5-12 1018 Orange Newport Bay Comment
  RSA594802  Melinis repens Fred M. Roberts, Terasa Bruckenstien 1992-3-19 4837 Orange Rancho Mission Viejo, San Juan Creek east of San Juan Capistrano and just north of Ortega Highway bridge, 3.6 km. SSW Median Rancho Survey Mark., UTM Z11 37 08 900m N, 4 42 100m E 49 Comment
  SEINET3828309  Melinis repens R. E. Riefner Jr. 2011-1 11 -98 Orange Fuel modification areas. Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge& Alteza Rd. 281 Comment
  POM49187  Mentzelia affinis Helen D. Geis 1900-1 517 Orange Hills back of Santa Ana. Comment
  RSA441  Mentzelia micrantha J. T. Howell 1927-7-3 260 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA734686  Mentzelia micrantha A. C. Sanders, T. B. Salvato 2008-5-13 35354 Orange Lomas de Santiago, Santiago Canyon at mouth of Hangman Tree Canyon and lower Hangman Tree Cyn, c. 1/2 mile below Modjeska Canyon confluence 366 Comment
  SD236328  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, Amber ONeal 2008-5-9 35313 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 345 Comment
  RSA759212  Mentzelia veatchiana Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, S face, base of a steep fire break cut from the summit down to the access road. Survey point 61. 1634 Comment
  UCR25309  Mesembryanthemum crystallinum John C. Roos 1965-6-16 s.n. Orange Dana Point Comment
  RSA18535  Mesembryanthemum nodiflorum C. B. Wolf 1927-7-23 662 Orange Along the coast just north of San Clemente. Comment
  RSA588725  Micropus californicus Fred M. Roberts 1990-5-7 4605 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA588800  Micropus californicus Fred M. Roberts 1990-5-7 4600 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and E of Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  UCR238212  Microseris douglasii Mark A. Elvin 2003-3-30 2388 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  CAS-BOT-BC348844  Microseris douglasii subsp. douglasii LeRoy Abrams 1903-4-18 3262 Orange Trabuco arroyo near Capistrano Comment
  UCR158148  Microseris douglasii subsp. douglasii Adrian Wolf 1998-5-10 256 Orange Santa Ana Mtns., Fremont Canyon ridge, 3.4 km NE of Irvine Lake, under powerlines 457 Comment
  CAS-BOT-BC322629  Microseris douglasii subsp. platycarpha Scott D. White 1998-3-16 6210 Orange Site of proposed Research Park, southwest of main campus circle, ca. halfway between Berkeley Ave. and new freeway (Bonita Canyon), USGS Tustin 7 1/2 ' quad, University of California Irvine Campus, Irvine 36 Comment
  RSA609947  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-4-4 2311 Orange University of California, Irvina Campus, adjacent to the UCI Ecological Reserve. The site is adjacent the end of Los Trancos Dr. & 500 ft. East of the reserve entrance. 46 Comment
  RSA625807  Microseris douglasii subsp. platycarpha Scott D. White, Noel Davis 1998-4-24 6345 Orange Mission Viejo Area: Aliso Creek watershed, E of El Toro Rd. just N of jct. w/ Valley Vista Wy. Large proposed subdivision called Saddleback Meadow. 305 Comment
  RSA708226  Microseris douglasii subsp. platycarpha Fred M. Roberts, Robert L. Allen, Chris M. Barnhill, Carol A. Roberts 2005-4-10 6167 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA651500  Microseris douglasii subsp. platycarpha D. E. Bramlet 2000-4-12 2972 Orange Fremont Canyon. The site is 183m south of the existing access road on the north ridge of the canyon. The site is 1.37km northeast of Santiago Creek. 336 Comment
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Feb 21 2007
  UCR107841  Microseris heterocarpa Scott D. White 1998-3-18 6213 Orange UCI, site of proposed research park, c. halfway between Berkeley Ave. and new freeway. 37 Comment
  UCR192480  Microseris lindleyi A. C. Sanders, Fred M. Roberts 2008-3-25 34518 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCSC000861  Mimulus aurantiacus Peter Kamb 1946-9-22 441 Orange San Mateo Point 5 Comment
  UCR106282  Mimulus aurantiacus var. aurantiacus B. G. Pitzer, M. Georgiady 1997-4-5 3077 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  UCR116521  Mimulus aurantiacus var. aurantiacus Dan Hare 2001-5-1 s.n. Orange South Coastal Plains region, Aliso Canyon Regional Park, approximately 3.3 km from the Pacific Ocean, near South Laguna 100 Comment
  RSA0056605  Mimulus aurantiacus var. pubescens Fred M. Roberts, K. G. Marsh 1987-5-14 3452 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2.8 km NW Los Pinos Peak. 721 Comment
  RSA442701  Mimulus aurantiacus var. puniceus T. W. Minthorn 1913-4-26 s.n. Orange Santiago Creek. Comment
  UC1063445  Mimulus aurantiacus var. puniceus R. St. John 1931-4-14 205 Orange Hot Springs, San Juan Canyon Elsinore Quadrangle 365 Comment
  LA209132  Mimulus aurantiacus var. puniceus W. E. Pequegnat; 1938-4-16 sn Orange Santa Ana Mountains, Indian Truck Trail 822 Comment
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Apr 10 2016
  RSA734599  Mimulus brevipes A. C. Sanders, Fred M. Roberts 2008-5-6 35230 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA0045522  Mimulus brevipes Stephen Bruff s.n. Orange Lemon H[e]ights [a neighborhood of Tustin?]. PR8. Comment
  UCSB48200  Mimulus cardinalis Roberts, Fred 1981-6-26 Orange Sant Ana Mts; Viejo Canyon; 0.1km N Calif. Rte. 74; 2.7km E San Juan Gurad Station 291 Comment
  RSA124722  Mimulus clevelandii E. K. Balls, Percy C. Everett 1957-11-25 22845 Orange 4.7 miles E of Silverado 1341 Comment
  RSA447957  Mimulus guttatus M. B. Dunkle 1934-6-18 3948 Orange San Juan Canyon. 305 Comment
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Jun 14 2012
  RSA698953  Mimulus guttatus J. R. Bruff 1930-10 19 Orange Santa Ana River Bed. Comment
  UCR109743  Mimulus guttatus T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  RSA708239  Minuartia douglasii Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6229 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  RSA734915  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-4-22 34994 Orange Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 213 Comment
  RSA0026064  Mirabilis laevis Betty Smith 1932-4-22 s.n. Orange Peters Canyon. Comment
  RSA0073649  Mirabilis laevis var. crassifolia Fred M. Roberts 2010-3-12 7178 Orange Southeast Coast: Dana Point Headlands: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  CSUSB1384  Modiola caroliniana John N. Bullock 1970-4-3 Orange Found as weed in residential district, Boxwood Street, Anaheim (city). 45 Comment
  SEINET892767  Monardella breweri subsp. lanceolata P. C. Everett 1935-1 7238 Orange Santa Ana Mts., Trabuco Canyon, 1 3/4 mi. below summit of truck trail 975 Comment
  UCSB52887  Monardella breweri subsp. lanceolata Roberts, Fred 1983-9-26 Orange Santa Ana Mtns., Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground 4.3km SSE Los Pinos Peak 810 Comment
  IRVC28200  Monardella hypoleuca A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
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Aug 13 2012
  IRVC25321  Monardella hypoleuca Karlin G. Marsh, G. A. Marsh 1989-6-25 s.n. Orange Central Santiago Canyon, south slope, along old mine trail just below Santiago Truck Trail, 2.7km SSW Laurel Springs. Santa Ana Mountains 748 Comment
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Aug 13 2012
  IRVC22034  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts 1983-9-26 1128 Orange Lion Canyon, Chiquito Basin Trail, 3.5km NNE Lower San Juan Picnic Ground; 4.2km SSE Los Pinos Peak, Santa Ana Mountains 815 Comment
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Sep 18 2012
  CHSC67673  Monardella hypoleuca subsp. intermedia 1988-6-22 Orange In hort, John Sorenson garden. Plant from Santa Ana. Comment
  RSA0006611  Monardella hypoleuca subsp. intermedia A. C. Sanders, M. A. Elvin 2005-9-2 31615 Orange Santa Ana Mtns.: upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks. 976 Comment
  UCR158811  Monardella hypoleuca subsp. intermedia A. C. Sanders, Mark A. Elvin 2005-9-2 31609 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
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Aug 17 2012
  UCR17859  Monardella hypoleuca subsp. intermedia A. C. Sanders 1976-3-6 00407 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon 549 Comment
  UCR193800  Monardella hypoleuca subsp. intermedia A. C. Sanders, Fred M. Roberts 2008-7-3 35681 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR238208  Monardella viminea Mark A. Elvin 2002-7-13 s.n. Orange Southern Coast, Irvine; UCI Arboretum 15 Comment
  CAS-BOT-BC349571  Monolopia lanceolata Carl B. Wolf 1932-3-14 2709 Orange Rancho Santa Ana Botanic Garden, native to slope below Pinus radiata bed 192 Comment
  UCD86558  Muhlenbergia asperifolia F. M. Reed 1927-9-19 5470 Orange Canal Bank, opposite Peralta Heights. 91 Comment
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May 1 2011
  RSA562732  Muhlenbergia microsperma Steve Boyd, Timothy S. Ross 1992-5-19 7448 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing the creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. 274 Comment
  RSA59  Muhlenbergia microsperma J. T. Howell 1927-6-5 37 Orange Rancho Santa Ana, near east boundary. 152 Comment
  SEINET10600012  Muhlenbergia microsperma LeRoy R. Abrams 1903-4-18 Abrams 3260 Orange Trabuco arroyo near Capistrano. Comment
  RSA0028023  Muhlenbergia rigens Fred M. Roberts 2012-9-6 7696 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  UCR102000  Myoporum laetum B. G. Pitzer 1997-3-25 3034 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCR51539  Myosotis R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  RSA696204  Myosotis arvensis Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  POM12404  Najas guadalupensis Philip A. Munz 1922-9-2 6347 Orange Ponds in Laguna Canyon 46 Comment
  CAS-BOT-BC456169  Najas guadalupensis Street; Williams 1919-5-4 2688 Orange Laguna Beach Region. Laguna Lakes Comment
  POM6316  Najas guadalupensis L. T. Street, G. Williams 1919-5-4 2688 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  UCR158039  Nama stenocarpa Adrian Wolf 1998-7-21 402 Orange South Coast, Emerald Canyon, Laguna Coast ranges, 3 km up canyon from Pacific Coast Hwy, 2.75 km SW of Laguna Canyon Rd. and El Toro intersection 122 Comment
  UCR266347  Nama stenocarpa D. E. Bramlet 2002-4-14 3269 Orange Laguna Lakes 113 Comment
  RSA638967  Nassella lepida Valerie L. Soza, LeRoy Gross 1999-6-8 500 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA700190  Nassella lepida Anonymous s.n. Orange Siverado. Comment
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Oct 7 2013
  UCSB52948  Nassella lepida Roberts, Fred 1983-3-16 Orange Laguna Beach; Sycamore Hills, central ridge, 1.4 km NNE jct. El Toro and Laguna Canyon Rds. 5.4km ESE Signal Peak 177 Comment
  POM147646  Nassella pulchra F. M. Reed 1927-04 5474 Orange Cliff at Beach. 15 Comment
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Nov 4 2017
  RSA184108  Nassella pulchra I. L. Wiggins 1966-3-16 20527 Orange Entrance to Firestone Boy Scout Reservation. Comment
  RSA747596  Nassella pulchra Fred M. Roberts 2000-5-19 5329 Orange Lomas de Santiago: Loma Ridge, ridge west of Bee Peak above Bee Cyn. landfill, 0.2 km W Bee Peak. 500 Comment
  UC407317  Nassella pulchra LeRoy Abrams 1903-4-18 3269 Orange Trabuco Canyon Capistrano Comment
  RSA0028025  Nasturtium officinale Fred M. Roberts 2012-9-6 7698 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  RSA330  Nasturtium officinale J. T. Howell 1927-7-15 404 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  RSA710410  Nasturtium officinale Fred M. Roberts 2005-10-3 6298 Orange San Juan Capistrano: San Juan Creek wash, La Novia Road Bridge to 100m E of bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCSB57134  Nasturtium officinale Marsh, G. 1975-7-28 Orange Huntington Beach; East Garden Grove-Wintersburg Flood Control Channel (no.C05); stream bank just N of Warner St. bridge crossing Comment
  UCR24248  Navarretia hamata subsp. leptantha Alfred R. Roos 1941-6-14 s.n. Orange Corona del Mar 91 Comment
  RSA468366  Navarretia prostrata Anstruther Davidson 1890-05 s.n. Orange Laguna Beach. Comment
  CAS-BOT-BC140681  Nemacaulis denudata var. denudata O. F. Clarke 2003-5-7 s.n. Orange South Coast: Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA678514  Nemacaulis denudata var. denudata Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1131 Orange Bolsa Chica Beach State Park and Bolsa Chica Ecological Reserve Boundary, alongside Pacific Coast Highway. 3 Comment
  RSA758015  Nemacladus ramosissimus D. E. Bramlet 2008-5-28 4282 Orange Bee Cyn., Bowerman landfill site, 468m S Bee Cyn access road & 434m W of the active landfill. Comment
  SEINET10939173  Nemacladus ramosissimus Philip A. Munz 1923-9-7 Munz 7769 Orange Santa Anna Mountains, on slopes along trail from Holy Jim Canyon to Santiago Peak 1128 Comment
  RSA421356  Nemophila menziesii Gale Sphon 1955-3-13 s.n. Orange Silverado Canyon Comment
  RSA610229  Nemophila menziesii Fred M. Roberts, Tony Bomkamp 1997-3-19 4990 Orange Rancho Mission Viejo: Canada Gobernadora, east slope. 1.7 km SW Cliff Survey Mark, 1.7 N Calf. Route 74. 122 Comment
  RSA749469  Nemophila menziesii subsp. menziesii Fred M. Roberts 1999-4-22 5189 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.8 km SE Silverado Sch. and 2.3 km NNW Bolero Lookout. 396 Comment
  CAS-BOT-BC533010  Nephrolepis cordifolia R. E. Riefner, Jr. 2016-5-24 16 -155 Orange City of Laguna Niguel, Alicia Pkwy S of Seabird Way 96 Comment
  IRVC152  Nephrolepis cordifolia Ed Hazen 1965-4-1 HS 537 Orange Trabuco Canyon Santa Ana Mountains Comment
  RSA0060642  Nephrolepis cordifolia Richard E. Riefner 2011-8-25 11 -120 Orange City of Laguna Beach, Aliso Beach County Park, bluff ca. 0.15 mi. SE of Aliso Way, NW ca. 0.25 mi. of West St. 10 Comment
  IRVC153  Nephrolepis exaltata L. Burns 1965-4-21 s.n. Orange Newport Beach; Lido Island Southern Coastal Comment
  SEINET10936050  Nerium oleander Charlene A. Bennett 1976-7-21 Bennett 428 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hill; some native shrubs, etc. 152 Comment
  RSA700000  Nicotiana bigelovii L. C. Hull 1934-4-1 s.n. Orange Panorama Heights Comment
  HSC21278  Nicotiana glauca J. J. Wagoner 1965-4-11 15 Orange 6 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  JEPS12502  Nicotiana glauca Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mts. Comment
  UCR100462  Nicotiana glauca B. G. Pitzer 1996-4-30 2761 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA0060157  Nicotiana quadrivalvis A. C. Sanders, Fred M. Roberts 2008-4-8 34743 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  UC402660  Nicotiana quadrivalvis Katharine Brandegee Orange Anaheim Comment
  UCR229211  Nicotiana quadrivalvis Dick Newell, Peter Wetzel 2011-6-28 199 Orange South Coast, San Joaquin Hills, Willow Canyon, Laguna Coastal Wilderness Park 89 Comment
  CHSC106530  Nolina cismontana Robt. Allen; Celia Kutcher 2007-5-19 Orange Peninsular Ranges; Santa Ana Mountains region: San Juan Trail, circa 3.4 air miles (5458 m) below (southwest of) trailhead at southern edge of Blue Jay Campground, circa 1.3 air miles (2121m) above (northeast of) trailhead at Hot Springs Canyon. UTM Zone 11S; 3719486N 454160E. 736 Comment
  RSA126  Nolina cismontana J. T. Howell 1927-7-24 467 Orange Claymine Canyon, near Sierra Peak 167 Comment
  RSA648660  Nolina cismontana R. E. Riefner 2000-7-8 20 -628 Orange NCCP North Ranch Policy Plan Area. On ridgeline overlooking upper W fork of Fremont Canyon; located E of Main Divide Road and SE from Windy Ridge cypress forest. 438 Comment
  RSA751322  Nolina cismontana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35290 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR209367  Nolina cismontana Fred M. Roberts, Linda Farley 2008-3-28 6832 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UC1593835  Nolina parryi James C. Dice 1986-5-31 653 Orange along sw edge of Vista del Lago just w intersection with Canaveras (1.2 km nw of Lake Mission Viejo); Mission Viejo 83 Comment
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May 24 2020
  UCD169807  Nolina parryi R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49684 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  UCSB47625  Nuttallanthus texanus Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA718962  Oenothera elata Fred M. Roberts, Robert L. Allen 2006-10-8 6418 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  JEPS44053  Oenothera elata subsp. hirsutissima L. M. Booth 1932-6-15 1190 Orange s Huntington Beach Comment
  UC1007125  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange 1 mi below Capistrano; San Juan Creek Comment
  UCR239883  Oenothera laciniata O. F. Clarke 2004-4-5 s.n. Orange South Coast, Least Tern Reserve, just north of the mouth of the Santa Ana River, Huntington Beach 4 Comment
  RSA0029940  Oenothera speciosa Fred M. Roberts 2013-5-15 7772 Orange San Joaquin Hills: Buck Gully, north slope, Newport Beach, near Ocean Beach Drive, 1.8 km NW summit Pelican Hill. 122 Comment
  UC1005021  Oenothera xenogaura E. Johnson 1940-8-15 Orange 1.5 mi n of Placentia (Klokke Estate); Klokke Estate Comment
  CDA6652  Oldenlandia corymbosa W. Humphrey 1973-7-19 Orange 7231 Irvine Boulevard, Santa Ana. 0 Comment
  CDA6653  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier s Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). 0 Comment
  CAS-BOT-BC427455  Oligomeris linifolia H. L. Mason 1926-4-25 2905 Orange Five miles south of Laguna Beach Comment
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA317752  Opuntia oricola David Walkington 1963-5-17 170 Orange Above intersection of Dana Cove Park rd. and Green Lantern Dr., continuous slope with Dana Cove Park Rd. Dana Point. 61 Comment
  RSA6667  Opuntia vaseyi B. D. Stark 1933-1-17 4512 Orange 5 miles north of Laguna Beach on road to Irvine. 152 Comment
  JEPS126146  Orobanche californica subsp. jepsonii Bob Allen with Alison Colwell 2005-7-21 05 -101 Orange Whiting Ranch Wilderness Park. Comment
  RSA759532  Orobanche vallicola Robt. Allen 2006-12-13 s.n. Orange Holy Jim Canyon Trail. About 1 mile up trail from forest gate. Within 1-2 m W of the trail edge 640 Comment
  POM156459  Orthocarpus densiflorus var. gracilis L. R. Abrams 1903-4-18 3266 Orange Near San Juan Capistrano Comment
  POM202722  Orthocarpus purpurascens L. M. Booth 1932-5-12 1048 Orange Newport Beach Comment
  RSA407957  Orthocarpus purpurascens M. B. Dunkle 1935-2-10 4337 Orange Laguna Creek; Coastal Southern California. 61 Comment
  RSA590943  Orthocarpus purpurascens Fred M. Roberts Jr. 1991-5-2 4784 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just west of Laguna Canyon Road. c.a. 2 km N jct. El Toro Road, 4.5 km E Signal Peak; 110 Comment
  CAS-BOT-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC355778  Osmadenia tenella John Thomas Howell 1927-7-28 2867 Orange On n. side of Santa Ana Canon [Canyon] 182 Comment
  SEINET3863999  Osmadenia tenella G. D. Carr 1971-7-14 585 Orange 2.5 mi NE of San Juan Capistrano on Hwy 74.; 0 69 Comment
  SEINET10875322  Osteospermum ecklonis David B. Dunn Dunn 22404 Orange Collected around the condominium-Pacific Island Estates in Laguna Niguel area. 30 Comment
  SEINET10875323  Osteospermum ecklonis David B. Dunn 1971-8-13 Dunn 18120 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA782192  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  RSA684305  Oxalis albicans subsp. californica Fred M. Roberts 2003-3-13 5590 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  UC571125  Oxalis albicans subsp. californica Herbert L. Mason 1926-4-25 2927 Orange 5 mi s Laguna Comment
  RSA2071  Oxalis californica Carl B. Wolf 1931-3-6 1858 Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  UCSB52920  Oxalis californica Roberts, Fred 1983-3-10 Orange Dana Point Headlands: just south of Pacific Coast Hwy, 0.5km northwest Dana Point Harbor; 0.5km WSW Richard Henry Dana School 85 Comment
  RSA651768  Oxalis corniculata Jack D. Ingwersen 1962-6-2 s.n. Orange Anaheim Comment
  RSA737550  Oxalis pes-caprae Fred M. Roberts 2008-3-12 6738 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  CAS-BOT-BC121211  Paeonia californica J. T. Howell 1927-6-6 2425 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA162751  Paeonia californica J. D. Olmsted 1958-3-4 19 Orange Small pond with westward drainage into Irvine lake, 250yards. West of Oak Flat fire road intersection, which is 9 miles southeast of Corona in Santa Ana Mts. 793 Comment
  RSA797013  Pallenis maritima R. E. Riefner Jr. 2011-6-25 11 -74 Orange City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2 Comment
  UCR241100  Pallenis maritima R. E. Riefner Jr. 2010-1-2 10- 03 Orange South Coast, City of Laguna Beach, Moss Point, vicinity of Ocean Way at Ruby St. 2.5 Comment
  RSA60  Panicum capillare J. T. Howell 1927-7-27 489 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA697732  Panicum capillare Anonymous 1928-1 6 Orange Santa Ana River flats. Comment
  RSA548851  Parapholis incurva Fred M. Roberts 1988-5-20 3974 Orange Irvine; University of CA, Irvine, near Farm School, 1.4km ESE campus center., UTM 3722500m N, 423200mE 46 Comment
  RSA752714  Parietaria hespera var. californica Fred M. Roberts, Sandra Leatherman, Jennifer Pareti 2009-4-14 7150 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  UC729871  Parietaria hespera var. hespera Carl B. Wolf 1932-7-2 Orange .12 mi below La Vida Springs; Carbon Canyon 213 Comment
  POM9119  Parietaria hespera var. hespera Philip A. Munz, R. D. Harwood 1920-4-24 3786 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  RSA702938  Paspalum dilatatum Scott D. White 2004-7-7 10604 Orange Laguna Niguel. 61 Comment
  JEPS70596  Paspalum distichum L. M. Booth 1932-7-1 1239 Orange Anaheim Creek Comment
  RSA697733  Paspalum distichum Anonymous 1930-1 2 Orange Bed of Santa Ana river west of Town. Moist sand Comment
  UCR137451  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  RSA91899  Paspalum distichum F. W. Peirson 1924-8-29 5096 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  RSA766069  Paspalum pubiflorum R. E. Riefner Jr. 2007-9-30 07 -419 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, vicinity of La Palma Ave. and Via Lomas De Yorba East. 110 Comment
  OBI74742  Paspalum vaginatum R. E. Riefner, Jr and K. Campbell, K. Campbell 2008-8-31 08 -267 Orange City of Irvine, tidal portion of San Diego crk, immediately E of Hwy 73 overpass 1 Comment
  UC2061661  Paspalum vaginatum R. E. Riefner Jr. 2008-7-29 08 -256 Orange City of of Dana Point, near Ritz-Car;ton Hotel, Salt Creek Beach area. Comment
  RSA737239  Paspalum virgatum R. E. Riefner 2008-7-29 08 -256 Orange City of Dana Point, Salt Creek Beach, Near Ritz Carlton Hotel 0 Comment
  RSA0045505  Pectocarya linearis Keith E. Hoffmaster 1935-3-17 841 Orange Near El Toro[Lake Forest] (Trabuco rd.). Comment
  UCSB56507  Pectocarya linearis subsp. ferocula Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve: in swale, near hilltop of Hill #3 85 Comment
  UCD169762  Pedicularis densiflora R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49711 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UCD103490  Pelargonium A. C. Sanders 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR196332  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange Southern Coastal, UCI Arboretum 15 Comment
  SD48447  Pellaea andromedifolia var. andromedifolia E. K. Balls, P. C. Everett 1957-11-25 22840 Orange Upper Trabuco Canyon, 2.2 miles northeast from entrance to Holy Jum Canyon 990 Comment
  RSA660591  Pellaea mucronata var. mucronata R. E. Riefner 2000-8-8 20 -719 Orange NCCP North Ranch Policy Plan Area. NE property; E slope of upper Fremont Cyn.; S of Donaldson Ranch area and S of powerline / National Forest boundary. 454 Comment
  RSA328946  Pennisetum ciliare var. ciliare J. West 1983-10-8 s.n. Orange City of Orange. Comment
  CDA23575  Pennisetum clandestinum Mark A. Elvin, D. G. Kelch 2006-12-9 5313 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  UCD89453  Pennisetum purpureum F. M. Reed 1933-9-3 8030 Orange north of Dana Point. Comment
  UCD89470  Pennisetum setaceum Beecher Crampton 1972-6-15 8813 Orange Irvine Blvd. X Lambert Road, near northwest cornoer South Coast Field Station. Comment
  RSA725933  Pennisetum villosum R. E. Riefner 2003-11-30 3 -486 Orange South Coast: Santa Ana, 55 Freeway near Brookhollow St. 32 Comment
  RSA33780  Penstemon centranthifolius N. C. Cooper 1944-6-4 1351 Orange San Juan Canyon, lower camp ground. 457 Comment
  UCR234136  Penstemon heterophyllus Dick Newell, Peter Wetzel 2011-8-30 219 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon Rd. and Edison Rd. 502 Comment
  IRVC26681  Penstemon palmeri Mark A. Elvin 2004-4-4 3216 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA298694  Penstemon spectabilis D. C. Michener 1982-5-24 4044 Orange Open road bank along Main divide truck route 5.4 mi. north of El Cariso. Comment
  NY661144  Penstemon spectabilis var. spectabilis L. Abrams 1901-6-15 1842 Orange Santiago Peak 1676.4 Comment
  CAS-BOT-BC330340  Pentachaeta aurea Le Roy Abrams 1903-4-17 3259 Orange Near El Toro Comment
  LA203846  Pentachaeta aurea LeRoy Abrams; 1903-4-17 3259 Orange near El Toro Comment
  SEINET3148376  Pentachaeta aurea L. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  SBBG70200  Peritoma arborea M. N. Ackley -Feb-1927 84 Orange Newport Beach 5 Comment
  SD224906  Peritoma arborea B. Pitzer 1996-4-30 2796 Orange Crystal Cove State Park, S of City of Irvine on State Hwy 1 (= Pacific Coast Hwy). 14 Comment
  SEINET235756  Persea borbonia R. W. Scora 1996-9-2 5087 Orange CULTIVATED ; University of California south Coast Field Station near Irvine. Field 3 Row 42 tree 9. Comment
  RSA710822  Persea cinerascens R. W. Scora 1997-5-13 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine. 21 Comment
  RSA588659  Phacelia brachyloba Fred M. Roberts, Carol A. Roberts 1990-5-23 4648 Orange West Fork, Upper Long Canyon, near Main Divide Truck Trail, 4.5km SE Los Pinos Peak. 756 Comment
  RSA647938  Phacelia cicutaria var. hispida Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 26 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  RSA769612  Phacelia cicutaria var. hispida E. W. Lathrop 1974-6-27 7430 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA794334  Phacelia cicutaria var. hispida Justin M. Wood 2010-3-31 1450 Orange [Santa Ana Canyon:] Santa Ana River floodplain, 0.25 miles north of Coal Canyon wildlife corrridor, west of Green River Golf Course on bluff south of the river. 122 Comment
  UCR239653  Phacelia cicutaria var. hispida Fred M. Roberts 2012-4-27 7544 Orange Lomas de Santiago, Loma Ridge, west of SR 241, tributary to 'Las Flores' Canyon, 1.5 km west-southwest of Irvine Lake Park Campground and 1.1 km east of Orange County Emergency Operations Center, Hill 1311 311 Comment
  SBBG6171  Phacelia cicutaria var. hispida J. M. Tucker 1941-5-30 257 Orange Ortega Hwy (St Hwy 74), 2 to 3 mi E of W boundary of Cleveland Nat Forest Comment
  RSA738989  Phacelia ciliata Norland 1929-3-16 s.n. Orange Huntington Beach Comment
  RSA201438  Phacelia distans J. T. Howell 1928-1-15 3277 Orange Near the Ranch House. Rancho Santa Ana. 152 Comment
  UCR223416  Phacelia distans Dick Newell, Don Millar 2011-2-8 049 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, upper Agua Chinon wash, along Limestone Canyon Rd. 398 Comment
  RSA542476  Phacelia distans Fred M. Roberts, T. Sholars 1988-3-29 3877 Orange San Joaquin Hills: Laguna Canyon along Laguna Canyon road, 2kim by road N Pacific Coast Hwy, 2.1km E guna Survey Marker. 34 Comment
  UCR193824  Phacelia minor A. C. Sanders, Fred M. Roberts 2008-7-16 35873 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  SEINET6971803  Phacelia minor W. P. Vestal, A. G. Vestal 1955-3-24 3458 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  RSA734011  Phacelia parryi A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34620 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  UCR190988  Phacelia parryi A. C. Sanders, Fred M. Roberts 2008-4-22 34990 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon haul road, just above Irvine Ranch gate and road to cement plant, c. 1 mile NE of Rattlesnake Reservoir 244 Comment
  RSA542475  Phacelia parryi Fred M. Roberts, Gordon Marsh, Karlin G. Marsh 1988-4-26 3940 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  RSA759251  Phacelia parryi Robt. Allen, Lori Whalen 2008-7-5 s.n. Orange Dry foothills along a SW-facing ridge, slong Santiago Truck Trail, 0.5 air miles E of USPF Forest Gate at Modjeska Grade Road. Comment
  RSA0027430  Phacelia ramosissima Fred M. Roberts 2013-7-18 7663 Orange San Joaquin Hills: Newport Beach, Buck Gully, along Buck Gully Trail, about 0.7 km from the north terminus of Poppy Street and 1.8 km WNW summit of Pelican Hill. 52 Comment
  CAS-BOT-BC144975  Phacelia ramosissima var. austrolitoralis John Thomas Howell 1927-6-3 2417 Orange On sandy ridge, southern Puente Hills, Santa Ana Canyon 152 Comment
  JEPS1357  Phacelia ramosissima var. austrolitoralis Alice King Orange Newport Comment
  CAS-BOT-BC145006  Phacelia ramosissima var. latifolia John Thomas Howell 1927-6-21 2567 Orange [Canon] Canyon in west side of Botany Garden, Rancho Santa Ana, Santa Ana [Canon] Canyon 152 Comment
  RSA428287A  Phacelia ramosissima var. latifolia F. R. Fosberg 1931-6-21 S- 5135 Orange Silverado Canyon, Santa Ana Mts. Comment
  RSA650512  Phacelia tanacetifolia Grant Garland 1948-5-16 s.n. Orange Found off highway 101 below Santa Ana 30 Comment
  IRVC18590  Phalaris aquatica Karlin G. Marsh 1980-8-13 s.n. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  UCR154352  Phalaris canariensis Mark A. Elvin 2004-5-2 3422 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  RSA642504  Phalaris lemmonii D. E. Bramlet 1999-5-16 2764 Orange Fairview Park, City of Costa Mesa. The site is located some 336m N of the intersection of Wilson and Canyon Dr. and 152m W of the Canyon School., 04 12 360mE X 37 24 490mN. 43 Comment
  UCR152757  Phalaris lemmonii D. E. Bramlet 2003-6-8 3461 Orange South Coast, Fairview Park in Costa Mesa, 152 m west of Canyon School and 396 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA0127610  Phalaris minor Fred M. Roberts 2016-4-26 8041 Orange Lomas de Santiago: South of Santiago Canyon Road in tributary to Lower Presida Canyon just southwest of Irvine Lake, 2.2 km S Irvine Lake dam spillway and 0.6 km SW Irvine Lake Park. 265 Comment
  UCR102004  Phalaris minor B. G. Pitzer 1997-3-25 3038 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, on bluffs immediately above beach, along trail that winds around restoration area and down to beach. 30 Comment
  UCSB47955  Phalaris minor Roberts, Dar 1980-5-4 Orange Camino Capistrano Rd. below bridge (Crown Valley Pkwy.) 30 Comment
  UCSB68450  Phalaris paradoxa Anderson, J. 1966-4-26 Orange University of California, Irvine; south of Science Lecture Hall Comment
Read comments
Nov 1 2018
  UCR133164  Phlox gracilis Adrian Wolf 2000-4-7 452 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Fremont Canyon, 3 km NNE of canyon mouth 408 Comment
  UCR217471  Phoenix canariensis Mark A. Elvin 2003-2-23 2318 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UCR66995  Phoenix canariensis A. C. Sanders 1990-10-6 10197 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UC1377701  Pholistoma auritum John Ingram 1960-3-29 263 Orange along rd. 2 mi. above O'Neill Park; Trabuco Canyon Comment
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  CAS-BOT-BC413831  Phoradendron leucarpum subsp. macrophyllum Andrew Townesmith; Karen M. Meyer; Tracy Scott 2007-3-11 675 Orange Cleveland National Forest. Off Long Canyon Road, NW of intersection with Route 74 752 Comment
  UCSB41810  Phoradendron leucarpum subsp. tomentosum Hufstader, R. 1971-3-24 Orange Trabuce Canyon approx. 7 miles from Santiago Cyn. Rd, 426 Comment
  UCR145988  Phoradendron tomentosum June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  POM201795  Phyla lanceolata L. M. Booth 1932-7-1 1238 Orange Anaheim Marsh Comment
  RSA683935  Phyllospadix scouleri E. Yale Dawson 1957-2-24 16174 Orange Just nOrth of Dana Point, Orange County Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  RSA684046  Phyllospadix torreyi E. Yale Dawson 1958-11-10 19762 Orange First rocky spit N of Dana Point. Station no 22. Pool at 190 ft from shore base point. Comment
  RSA33542  Phyllospadix torreyi N. C. Cooper 1942-11-8 2019 Orange Laguna Beach. Comment
  RSA23579  Physalis acutifolia E. R. Johnson 1939-9-8 9537 Orange Santa Ana Canyon, Rancho Santa Ana., in #2 Valencia Orange Grove. 122 Comment
  UCR210372  Picris echioides T. B. Salvato, Billy Deane 2006-10-16 1936 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  UCR46555  Picris echioides B. G. Pitzer, D. C. Hawks 1986-10-21 0353 A Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi east of Santa Ana, in hills N and east of South Coast Gun Club on Jeffrey Road in Hicks Canyon 183 Comment
  RSA610236  Pilularia americana Fred M. Roberts, Tony Bomkamp, Rick Riefner 1997-2-27 4978 Orange Costa Mesa: Fairview Park, 0.1 km W Canyon School. 24 Comment
  NY34631  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SD13290  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, saddle northwest of Sugarloaf Peak (Pleasants Peak), south slope of main ridge, 1.3 mile south of summit of Skyline Drive 1160 Comment
  SD136372  Pinus attenuata Carl B. Wolf 1934-12-21 Orange south slope of main ridge, saddle northwest of Sugarloaf Peak, 1.3 mile south of summit of Skyline Drive, Santa Ana Mountains Comment
  UCR231189  Pinus attenuata A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39943 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1143 Comment
  POM18082  Pinus coulteri Philip A. Munz 1923-9-7 7755 Orange Santa Ana Mts. Trail from Trabuco Canyon to summit. 1220 Comment
  RSA7645  Pinus coulteri C. B. Wolf 1933-12-24 5386 Orange Approximately the head of Highway Canyon on slope of Modjeska Peak, on the road to the Santa Ana Mts. Altitude 4000 ft 1220 Comment
  UCR144743  Pinus coulteri A. S. Boughey 1965-3-16 58 Orange Santa Ana Mtns., Silverado Canyon Comment
  SD236116  Pinus halepensis A. C. Sanders, Fred M. Roberts 2008-9-18 36082 Orange Peninsular Range; Santa Ana Mtns. Foothills: Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  POM6289  Piperia cooperi Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2638 Orange Santa Ana River Canyon. Comment
  RSA539344  Piperia cooperi Fred M. Roberts, Gordon Marsh 1987-5-14 3449 Orange Santa Ana Mountains: Upper Trabuco Canyon, Trabuco Canyon Trail, 2 kilometers NNW Los Pinos Peak. 856 Comment
  UCR98242  Piptatherum miliaceum Scott D. White 1997-3-28 4826 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  CDA21582  Pittosporum crassifolium Mark A. Elvin, D. G. Kelch, B. S. Herhus, Patricia Iluore 2006-12-9 5324 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 100 miles west of Eastbluff Drive. Comment
  RSA715258  Plagiobothrys acanthocarpus R. E. Riefner 2006-4-12 6 -116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR107848  Plagiobothrys acanthocarpus Scott D. White, B. Leatherman 1998-1-26 6064 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCR171016  Plagiobothrys acanthocarpus R. E. Riefner Jr. 2006-4-12 06- 116 Orange Irvine, north foot of San Joaquin Hills, vicinity of Quail Hill, SSW of 405 Freeway and Shady Canyon Rd. 46 Comment
  UCR5140  Plagiobothrys collinus var. californicus Barbara T. Gittins, O. F. Clarke 1966-3-19 903 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  UCSB52465  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Fred 1982-4-2 Orange Laguna Niguel; hills, 3.5 km. ESE Aliso Peak; 3.2 km. ESE Alicia Fire Station, N of Del Avion 100 Comment
  RSA542655  Plagiobothrys fulvus var. campestris Fred M. Roberts 1988-3-15 3864 Orange Rancho Mission Viejo: Upper Gabino Canyon, 4.1 km SE Point Rancho Survey Marker. 191 Comment
  UC1212098  Plagiobothrys fulvus var. campestris D. Bates 1960-4-2 2307 Orange Route 74 e San Juan Capistrano Comment
  UCR220956  Plagiobothrys nothofulvus Dick Newell, Don Millar 2010-3-16 13 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, above Agua Chinon at Box Canyon Rd, 2.81 miles north of Hwy 241 toll road and 2.77 miles east of 133 toll road 427 Comment
  RSA0045608  Plagiobothrys nothofulvus Keith E. Hoffmaster 1935-3-17 555 Orange Near El Toro (Trabuco rd). Comment
  UCR237838  Plantago elongata Mark A. Elvin 2003-2-2 2261 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  JEPS6417  Plantago erecta Alice King 1908-3-14 Orange near Santa Ana; Anaheim Plains Comment
  RSA401987B  Plantago erecta Anstruther Davidson 1910-4-1 s.n. Orange Corona Del Mar. Comment
  RSA708225  Plantago erecta Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6168 Orange Costa Mesa: Fairview Park, west of north end of Canyon Drive, c.a. 0.2km WNW Marison Special Education Center (Canyon Sch. on topos). 24 Comment
  RSA734805  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 Orange Lomas de Santiago, slope SE of road junction along ridge road, near head of Agua Chinon Canyon, 2.4 miles north of El Toro 470 Comment
  UC1607990  Plantago erecta Donald G. Nelson 1935-4-6 227 Orange East San Juan Capistrano & just south of boundary of Cleveland Nat'l Forest in Santa Ana Mts. Comment
  JEPS7123  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Comment
  RSA791465  Plantago lanceolata Keith E. Hoffmaster 1927-5-18 955 Orange Santa Ana. CP3. Comment
  RSA683234  Plantago major Scott D. White, Matt Carlton 2003-11-20 9870 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  RSA5949  Plantago major Carl B. Wolf 1932-7-7 3861 Orange Opposite the Bryant Ranch: on N side of Bryant Avenue, 0.5 mile east of Los Alamitos Boulevard near Los Alamitos. 8 Comment
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Apr 8 2014
  SD241125  Plantago subnuda A. C. Sanders 2011-8-20 39889 Orange South Coast: city of Placentia, Tri-City Park on North Kraemer Blvd. at Golden Ave. (Yorba Linda 7.5'Q) 103 Comment
  RSA725533  Platanus X acerifolia Fred M. Roberts 2007-9-11 6567 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA652981  Platanus racemosa Darren Day, Hal Willis 1984-5-5 16 Orange This plant was found growing on the east side of Laguna Canyon Rd. as you are traveling towards the city of Laguna Beach. This location is approximately 3.4 miles out of town. Comment
  CAS-BOT-BC229039  Plecostachys serpyllifolia R. E. Riefner, Jr. 2011-7-7 11 -88 Orange City of Dana Point, S of Mussel Cove, N of Salt Creek Beach Park 8 Comment
  SD218286  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 312 Orange City of Laguna Beach, vicinity of West St. and Pacific Coast Highway. Comment
  SEINET4176011 Image available Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, near Salt Creek, vicinity of Ritz Carlton Resort 3 Comment
  UC2061637  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange City of Dana Point, beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  RSA751406  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln., and Polaris Dr. 8 Comment
  RSA785449  Plecostachys serpyllifolia R. E. Riefner Jr. 2011-6-25 11 -71 Orange city of Laguna Beach, Woods Cove, vicinity of Ocean Way at Pearl Street 9 Comment
  UCR256912  Plectritis ciliosa subsp. insignis Naomi Fraga, Duncan S. Bell 2009-5-11 2710 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA528043  Pluchea odorata A. C. Sanders 1990-10-6 10185 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  RSA719408  Pluchea odorata Fred M. Roberts, Robert L. Allen 2006-10-8 6427 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR146415  Pluchea odorata Sandra L. Leatherman 1998-9-3 45 Orange Coastal Plains & Basins; South Coastal Plain, Dana Point: Monarch Beach, northeast of the intersection of State Highway 1 and Crown Valley Parkway, and west of Salt Creek 30 Comment
  JEPS30711  Pluchea odorata var. odorata Peter H. Raven 1961-10-15 16855 Orange just n of U.S. Highway 91 along dyke along road to Yorba Linda 114 Comment
  UC1536010  Pluchea odorata var. odorata C. W. Tilforth 1975-9-6 1048 Orange ne shoreline Upper Bay (above Coastal Salt Marsh); Newport Beach Comment
  CAS-BOT-BC326617  Pluchea sericea John Thomas Howell 1927-7-21 2815 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  RSA932  Pluchea sericea J. T. Howell 1927-7-21 456 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  CAS-BOT-BC255536  Poa annua Ira L. Wiggins 1966-2-12 20441 Orange On W side of State College Blvd, opposite Electra Way, Fullerton Comment
  RSA731925  Poa annua Fred M. Roberts, Sandy Leatherman 2007-11-27 6685 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  SEINET3123526 Image available Poa annua A. C. Sanders, T. B. Salvato 2008-1 35357 Orange Peninsular Range; Santa Ana Mtns.; Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  IRVC19543  Poa pratensis R. L. Allen 1983-1 s.n. Orange Irvine: near NE corner of Culver at Irvine Blvd. Southern Coastal Comment
  RSA699308  Poa pratensis Keith E. Hoffmaster 1927-5-30 33 Orange Santa Ana. Comment
  RSA680732  Poa secunda Scott D. White 2003-3-21 8823 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR138440  Poa secunda R. E. Riefner Jr. 2000-4-15 20- 379 Orange Santa Ana Mtns., North Ranch Policy Plan Area Main Divide Road; south of Gypsum Canyon and south of Windy Ridge 518 Comment
  CAS-BOT-BC94725  Poa secunda subsp. secunda R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-3-24 719 Orange Chino Hills State Park. South Ridge Road W of San Juan Hill, going W from Equestrian Staging Area. Top of ridge 1450 Comment
  RSA708363  Poa secunda subsp. secunda Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6233 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  CAS-BOT-BC225238  Polemoniaceae E. W. Lathrop 1974-6-27 7420 Orange Trabuco Oaks, Trabuca Canyon, Cleveland Nat'l Forest 396 Comment
  RSA450863  Polygala cornuta var. fishiae Gordon Marsh, K. G. Marsh 1977-11-21 s.n. Orange Along N side of Ortega Hwy, 0.6 miles W of Lower San Juan Picnic ground. Comment
  SD152784  Polygala cornuta var. fishiae Steve Boyd 1992-5-20 7478 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area, Western edge in Lucas Canyon, along foot trail upstream from end of old road grade to upper homestead (corrugated steel bldg) 351 Comment
  IRVC29819  Polygonum Artie Thomas, Mark A. Elvin 2006-9-23 609231 Orange San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; SW edge, along San Diego Creek, N of University Drive, E Hwy 73. Southern Coastal 2 Comment
  CAS-BOT-BC110520  Polygonum Mrs. H. C. Cantelow 1933-7-9 431 Orange Coast near San Juan de Capistrano. Comment
  UC536925  Polygonum argyrocoleon Lawrence M. Booth 1932-7-25 1317 Orange 2 mi from ocean; Santa Ana River Comment
  POM201772  Polygonum argyrocoleon L. M. Booth 1932-7-25 s.n. Orange Santa Ana River 2 miles from ocean. Comment
  UCR193820  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-7-16 35866 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR195017  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 Orange Peninsular Range; Santa Ana Mtns., lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 192 Comment
  UCR96858  Polygonum aviculare Scott D. White 1993-4-28 1284 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  UC1543012  Polygonum aviculare subsp. aviculare Donald G. Nelson 1936-5-29 430 Orange edge of lot along hwy between Marshall Avenue and Grand Avenue (on W. Commonwealth Ave.); Buena Park Comment
  CAS-BOT-BC414039  Polygonum aviculare subsp. aviculare Alma Sweet 1919-1-1 s.n. Orange Unspecified Comment
  CAS-BOT-BC414041  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-3-31 20570 Orange Along shoulder of Brea Olinda Boulevard near Carolina Avenue, just outside the city limits of Fullerton Comment
  RSA718963  Polygonum lapathifolium Fred M. Roberts, Robert L. Allen 2006-10-8 6417 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR150563  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  IRVC22502  Polypodium californicum Fred M. Roberts 1985-5-1 1692 Orange Aliso Canyon, 2.1km NNE Aliso Peak, Aliso Viejo 67 Comment
  RSA264148  Polypodium californicum C. W. Tilforth 1977-3-6 1255 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  SD144152  Polypodium californicum Scott D. White 1996-12-20 4629 Orange Above Modjeska Canyon: proposed water tank site. 424 Comment
  UCR209523  Polypodium californicum Fred M. Roberts 2008-4-16 6907 Orange South Coast, Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of the Marine Institute, Dana Point Harbor 45 Comment
  UCSB62525  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the upper canyon camps. 762 Comment
  UCSB62759  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the public camps, upper part of canyon 762 Comment
  IRVC19368  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange [San Juan Canyon], Ortega Hwy, roadside 111; small side canyon, NW of main canyon. Santa Ana Mountains Comment
  IRVC19535  Polypodium californicum R. L. Allen 1977-2-13 s.n. Orange Viejo Canyon, off Hwy 74, 15.5mi NE San Juan Capistrano; steep, rocky seep above San Juan Creek. Santa Ana Mountains Comment
  IRVC21306  Polypodium californicum Fred M. Roberts 1984-1-29 1160 Orange Laguna Niguel: Niguel Hill, 1.1km ENE of Aliso Peak, 2.0km SW of Alicia Fire Station. Southern Coastal 260 Comment
  IRVC21768  Polypodium californicum Fred M. Roberts, G. S. Pederson 1984-12-17 1444 Orange canyon, 2.5km NE Median Rancho Survey Mark; 1.4km NW Bench Mark 422, Wagon Wheel Regional Park 190 Comment
  IRVC1813  Polypogon monspeliensis C. Hooven 1965-4-10 s.n. Orange Spruce and Palisades (sic). southern coastal Comment
  IRVC22745  Polypogon monspeliensis Fred M. Roberts 1985-5-15 1806 Orange San Joaquin Hills: Laguna Canyon; Laguna Lakes, northernmost pond, south margin, 5km ENE Signal Peak. southern coastal 114 Comment
  IRVC24285  Polypogon monspeliensis Fred M. Roberts 1985-10-26 2515 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  IRVC25048  Polypogon monspeliensis Fred M. Roberts 1986-8-21 3062 Orange Mission Viejo: English Canyon along English Creek just below Trabuco Road crossing, about 2.4km E El Toro Fire Station. southern coastal 166 Comment
  IRVC8600  Polypogon monspeliensis J. B. Anderson 1966-4-17 593 Orange Newport Beach: along roadside ditch in field NE of Newport Harbor High School. southern coastal Comment
  SDSU2787  Polypogon monspeliensis Thomas A. Zink 1971-4-1 Orange growing in a shallow roadside ditch along Back Bay Rd. about 2.5 miles west of Jamboree Rd., at the bottom of a steep cliff. 5 Comment
  UCD91371  Polypogon monspeliensis Peter H. Raven 1957-9-28 11375 Orange north limits of Surfside. Comment
  RSA697034  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa Comment
  RSA644958  Populus balsamifera subsp. trichocarpa R. E. Riefner, Adrian Wolf 2000-1-24 20 -116 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N of Saniago Creek and immediately N. of major stream fork. 305 Comment
  SD152924  Porophyllum gracile Steve Boyd, Tim Ross 1992-5-19 7447 Orange Southern Santa Ana Mountains, western edge of the wilderness in Aliso Canyon at the confluence with Lucas Canyon. 274 Comment
  CAS-BOT-BC452122  Potamogeton crispus John Thomas Howell 1928-9-6 4079 A Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  POM1024  Potamogeton nodosus I. M. Johnston 1918-9-3 2144 Orange Lakes in Laguna Canyon, Sa Joaquin Hills 107 Comment
  SEINET3156932  Potentilla glandulosa var. nevadensis H. M. Hall 1906-7-15 7516 Orange S Fork Meadows, Santa Ana Canon, Upper Trabsition Zone Comment
  RSA701207  Prunus ilicifolia Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains Comment
  POM358761  Pseudognaphalium biolettii M. B. Dunkle 1933-4-9 3282 Orange Dana Point. Comment
  RSA684306  Pseudognaphalium biolettii Fred M. Roberts 2003-3-13 5589 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  UCR281572  Pseudognaphalium biolettii Mitch Provance, Jeremiah George 2017-3-20 317- 106 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  UCR281519  Pseudognaphalium californicum Mitch Provance 2017-6-9 617- 94 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  CAS-BOT-BC502070  Pseudognaphalium leucocephalum R. E. Riefner, Jr. 2015-12-9 15 -461 Orange Rancho Mission Viejo, E of San Juan Capistrano, San Juan Creek, W of Antonio Pkwy, N side of Ortega Hwy (Hwy 74), near bridge at Sendero Field Park 55 Comment
  SD187363  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-3-21 07 157 Orange San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek. 31 Comment
  UCR222661  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2008-8-5 08- 259 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage 223 Comment
  UCR269241  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2015-12-9 15- 458 Orange South Coast, Rancho Mission Viejo, east of San Juan Capistrano north of Antonio Parkway and north of Ortega Hwy 74, near Sendero Field Park 55 Comment
  UCR281842  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2017-8-14 17- 408 Orange South Coast, city of San Juan Capistrano, San Juan Creek. Northeast from San Juan Creek Road and Camino Chico, opposite Blenheim Farms & Equestrian Center, south of Ortega Hwy 47 Comment
  CHSC35335  Pseudognaphalium luteoalbum James Henrickson 1972-10-21 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. 45 Comment
  UCR138385  Pseudognaphalium luteoalbum Scott D. White, Brian Leatherman 1997-6-12 5313 Orange Santa Ana Mtn. foothills, E of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e. c. 2-4 mi east of Hwy I-15/Hwy 74 junction 76 Comment
  UCR194995  Pseudognaphalium luteoalbum A. C. Sanders, Fred M. Roberts 2008-8-7 36002 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UCSB48012  Pseudognaphalium microcephalum Roberts, Jr., Fred 1980-9-14 Orange Santa Ana Mtns.; San Juan Canyon, 0.6 km. SW Lower San Juan Picnic Ground; 1.9 km. WNW Sitton Peak 410 Comment
  UCD135188  Pseudognaphalium microcephalum R. Townsend 1939-12-28 154 Orange Coyote Hills, 2.5 miles northeast of Yorba Linda. Comment
  MACF020379  Pseudotsuga macrocarpa B. Thomas 1967-12-22 57 - Orange Santiago Park; Santa Ana Mountains 1523 Comment
  RSA5343  Pseudotsuga macrocarpa B. D. Stark 1933-1-4 4493 Orange Bottom of Claymine Canyon. No. end of Santa Ana Mts. 305 Comment
  RSA797373  Pseudotsuga macrocarpa Keith E. Hoffmaster 1931-1-1 52 Orange Santa Ana Mountains Comment
  UCR144742  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns., Silverado Canyon Comment
  UCR203877  Pseudotsuga macrocarpa R. E. Riefner Jr. 2008-6-3 08- 134 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east fork of Fremont Canyon, Black Star SCE Road 646 Comment
Read comments
Jun 8 2011
  UCSB47639  Pseudotsuga macrocarpa Roberts, Fred 1980-5-3 Orange Main Divide Truck Trail, on east side of road, 0.4 km. W Trabuco peak, Santa Ana Mtns. 1341 Comment
  RSA580938  Psilocarphus brevissimus D. Bramlet 1995-4-29 2401 Orange Fairview Park, Costa Mesa. 366m N of intersection of Wilson and Cyn drive and 152 m W of the Cyn School. 43 Comment
  UCR282159  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17- 36 Orange South Coast, city of Newport Beach, Polaris Drive, south of Evening Star Drive, Westcliff Park, north side of Newport Bay 3 Comment
  RSA790025  Psoralea macrostachya Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  UCR158852  Psoralea macrostachya A. C. Sanders, Mark A. Elvin 2005-9-2 31605 Orange Peninsular Range; Santa Ana Mtns., mouth of Lion Canyon near Lower San Juan Picnic Area, San Juan Creek Canyon 427 Comment
  JEPS57988  Pterostegia drymarioides Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  RSA698489  Pterostegia drymarioides Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCR203979  Pterostegia drymarioides Fred M. Roberts 2008-3-12 6714 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  CAS-BOT-BC362140  Pulicaria paludosa T. C. Fuller 1963-10-9 11362 Orange N. facing slope of the Santa Ana Canyon, 0.1 mi. s. of Riverside Freeway to Anaheim, ca. 2 mi. w. of the Riverside Co. line in Orange Co. Comment
  CDA7617  Pulicaria paludosa Robert L. Pope 1959-8-14 Orange Ray Miller property, Santa Ana Canyon, east of Fullerton. 0 Comment
  RSA783437  Pulicaria paludosa J. D. Olmsted 1959-9-22 991 Orange Near Sycamore Park along Santa Ana River by junction of industrial waters from the 3 M clay works to the south; 8-9 miles W of Corona; base of north Santa Ana Mts. 137 Comment
  UCSB71041  Pulicaria paludosa Ferren, Wayne 1991-11-29 Orange San Joaquin Marsh. North of Sand Diego Creek & east of MacArthur Blvd. Comment
  RSA0041475  Pulicaria paludosa Fred M. Roberts, Robert L. Allen 1985-8-19 2163 Orange Mission Viejo: English Creek near confluence of Aliso Creek, 1.1km E E1 Toro Fire Station. 138 Comment
  CAS-BOT-BC61812  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  RSA702202  Quercus agrifolia var. agrifolia Fred M. Roberts, David E. Bramlet 2003-6-20 5923 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, tributary to Christianitos Cyn, along Back Road, 1.48 km WNW Sycamore Gate. 189 Comment
  CAS-BOT-BC86442  Quercus berberidifolia A. M. White 1974-6-1 1398 Orange About 20 mi E. of Santa Ana, N. of Silverado County 1005 Comment
  IRVC16135  Quercus berberidifolia R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  RSA171930  Quercus berberidifolia Robert F. Thorne 1963-7-26 32828 Orange Santa Ana Mts., Cleveland National Forest, Trabugo District. 1189 Comment
  RSA590959  Quercus berberidifolia Fred M. Roberts, Karlin G. Marsh 1991-4-10 4765 Orange Laguna Beach: South Laguna, Temple Hill, ridge between upper Hobo Canyon and Aliso Gorge, 1.7 km NW Niguel Hill summit. 213 Comment
  UCR231345  Quercus berberidifolia A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39935 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1152 Comment
  RSA0044655  Quercus berberidifolia Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mountain. Comment
  IRVC22666  Quercus chrysolepis Fred M. Roberts 1985-5-9 1727 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  RSA638960  Quercus chrysolepis Valerie L. Soza, LeRoy Gross 1999-6-7 485 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  RSA7638  Quercus chrysolepis Carl B. Wolf 1933-11-3 5528 Orange Along main Divide Motorway on west slope of modjeska Peak. 1372 Comment
  UCSB52941  Quercus chrysolepis Roberts, Fred 1983-11-4 Orange Santa Ana Mountains; upper Trabuco Canyon, 1.2 km. NE Los Pinos Peak; 3.5 km. SSE Trabuco Peak 1320 Comment
  RSA659896  Quercus cornelius-mulleri Karl Price 1988-4-29 15 Orange An unnamed side canyon within Hot Springs Canyon. It is on Hot Springs Canyon Rd., 0.75 mi. North of Ortega Hwy. (74), 12.6 mi. East of San Juan Capistrano. 305 Comment
  CAS-BOT-BC86387  Quercus dumosa John Thomas Howell 1927-6-16 2542 Orange ridge N side of Santa Ana canyon 152 Comment
  UCSB52411  Quercus dumosa Roberts, Fred 1982-7-8 Orange LAGUNA NIGUEL: canyon near Pacific Island Dr., 1.4km ESE Aliso Peak: 1.1km NE Bench Mark 133 207 Comment
  UCR113447  Quercus engelmannii R. E. Riefner Jr., Adrian Wolf 2000-6-1 20- 453 Orange Santa Ana Mountains, North Ranch Policy Plan Area, north of Irvine Lake [Santiago Reservoir] and west of Black Star Canyon, west of dirt access road, W slope of Fremont Canyon. 473 Comment
  UCR98933  Quercus engelmannii J. E. Harrison 1996-10-17 500 Orange San Joaquin Hills, Upper Coyote Canyon, just north of Signal Peak and adjacent to south side of San Joaquin Hills Transportation Corridor (SR-73). 250 Comment
  CAS-BOT-BC383076  Quercus suber R. E. Riefner, Jr. 2005-4-15 05 -206 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Lot #1 89 Comment
  IRVC28198  Quercus wislizeni A. C. Sanders, Mark A. Elvin 2005-9-2 Orange Santa Ana Mountains; near head of Holy Jim Cyn, a tributary to Trabuco Cyn, along trail in the switchbacks, below the towers on Santiago Peak. Peninsular Ranges 998 Comment
  IRVC22420  Quercus wislizeni var. frutescens Gordon A. Marsh, Karlin G. Marsh 1985-10-27 s.n. Orange Pine Canyon; 4.1km NW Modjeska Peak. Santa Ana Mountains 805 Comment
  RSA12847  Quercus wislizeni var. frutescens Carl B. Wolf 1933-11-8 5539 Orange NW side of Trabuco Peak, Santa Ana Mts. 1311 Comment
  UCR209061  Rafinesquia californica A. C. Sanders, Fred M. Roberts 2008-4-22 35049 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, slopes of south end of Loma Ridge and at head of Limestone Canyon, c. 2.5 miles SW of Silverado 488 Comment
  UCR97814  Rafinesquia californica Scott D. White 1997-3-28 4838 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA399407  Ranunculus californicus M. B. Dunkle 1935-3-3 4342 Orange San Juan Canyon. 457 Comment
  RSA4832  Ranunculus californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1 plant #1 Comment
  IRVC29093  Ranunculus californicus var. californicus Fred M. Roberts 1989-3-17 4208 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  IRVC1140  Raphanus sativus Anonymous 1965-3-15 Orange Dover Rd. Newport Beach Comment
  SD175849  Rhamnus alaternus D. G. Kelch 2006-12-9 06 546 Orange Along Newport Back Bay Dr. in side canyon. 6 Comment
  IRVC29872  Rhamnus alaternus Mark A. Elvin, D. Kelch 2006-12-9 5300 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA801993  Rhamnus crocea R. H. McArthur 1934-9-17 s.n. Orange Gypsum Canyon Comment
  LA207810  Rhamnus crocea subsp. ilicifolia Carl B. Wolf; 1931-3-6 1845 Orange Santa Ana Mountains, Trabuco Canyon, 0.5 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56024  Rhamnus ilicifolia John Thomas Howell 1927-7-24 2824 Orange Sandy floor of Claymine Canyon, n. end of Santa Ana Mts. 152 Comment
  CAS-BOT-BC56034  Rhamnus ilicifolia C. B. Wolf; E. R. Johnson 1933-11-3 5531 Orange Santa Ana Mts., Silverado Canyon, base of Silverado Motorway 731 Comment
  CHSC37638  Rhamnus ilicifolia T. B. Devine 1981-7-30 735 Orange Santiago Canyon Road, 1/4 mi W of its junction with Williams Canyon Road. 350 Comment
  OBI5938  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1845 Orange W slope Santa Ana mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  POM201686  Rhamnus ilicifolia L. M. Booth 819 Orange Santa Ana Canyon Comment
  RSA184091  Rhamnus ilicifolia I. L. Wiggins 1966-2-25 20473 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  RSA391107  Rhamnus ilicifolia H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  SBBG52716  Rhamnus ilicifolia C. Davidson 1977-5-18 5620 Orange Bear Springs, Santa Ana Mtns 121 Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  UCR234142  Rhamnus ilicifolia Dick Newell, Judy Booth 2012-3-30 242 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  UCR241912  Rhamnus ilicifolia Fred M. Roberts 2012-5-10 7562 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA743467  Rhaphiolepis indica Fred M. Roberts, Carol A. Roberts 2008-9-28 7116 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC170430  Rhus Mark A. Elvin 2007-4-28 5448 Orange Irvine, UCI Arboretum, UCI North Campus near intersection of Jamboree Blvd. and Campus Dr. - Southern Coastal 15 Comment
  CAS-BOT-BC167877  Rhus integrifolia T. B. Salvato 2010-10-27 5136 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CLARK-A1528-116  Rhus integrifolia Cesareo Perez 1971-5-4 2 Orange Villa Park Comment
  RSA0125890  Rhus integrifolia Fred M. Roberts Jr. 2012-4-24 7512 Orange San Joaquin Hills: Buck Gully, W of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km W Signal Peak. 179 Comment
  RSA184098  Rhus integrifolia I. L. Wiggins 1966-2-25 20474 Orange Firestone Boy Scout Reservation in hills E. of Brea. Comment
  RSA662185  Rhus integrifolia Giancarlo Massarotto 1981-5-2 42 Orange Property off the Pacific Coast Hwy. between Del Mar and Laguna Beach Canyon, S of Pelican Hill. Comment
  SD253896  Rhus integrifolia Jim Riley 2013-12-10 133 Orange San Clemente area; 0.29 miles E intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 74 Comment
  UCR203983  Rhus integrifolia Fred M. Roberts 2008-3-12 6722 Orange South Coast, Dana Point Headlands Center for Natural Lands Mgmt. Preserve, west side, c. 0.8 km west of Marine Institute, Dana Point Harbor 50 Comment
  RSA13147  Rhus ovata Percy C. Everett 1935-6-19 7240 Orange Trabuco Canyon, 2 mi. above E Forest Service Patrol Station. 762 Comment
  OBI20443  Rhus ovata Elisabeth Norland 1941-11-5 11185 Orange Nursery Lahthouse in falt 732 Comment
  RSA696475  Rhus trilobata J. Vlahos 1974-04 s.n. Orange Holy Jim canyon Comment
Read comments
Mar 6 2011
  CAS-BOT-BC93074  Ribes californicum var. hesperium Carl B. Wolf 1931-1-30 1825 Orange Claymine Canyon, Santa Ana Mountains. 457 Comment
  UCR79243  Ribes californicum var. hesperium Steve Boyd, T. S. Ross 1992-5-20 7460 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  CAS-BOT-BC173128  Ribes indecorum C. B. Wolf 1931-3-6 1861 Orange 1 mile north of base of Modjeska Grade, west slope of the Santa Ana Mts. 304 Comment
  RSA2109  Ribes indecorum Carl B. Wolf 1931-3-6 1833 Orange Trabuco Canyon Road, 1.25 miles below Trabuco Oaks. 305 Comment
  RSA543964  Ribes indecorum Steve Boyd, Orlando Mistretta 1991-5-9 6195 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  POM9115  Ribes indecorum P. A. Munz, R. D. Harwood 1920-4-24 3750 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  CAS-BOT-BC168944  Ribes malvaceum James R. Shevock 1978-4-26 5899 Orange Along the divide road, FS 3S04 in the vicinity of Sierra Peak, Santa Ana Mountains, Cleveland National Forest 1097 Comment
  SBBG72052  Ribes malvaceum M. N. Ackley -May-1925 996 Orange Silverado Cyn 298 Comment
  LA205476  Ribes malvaceum var. viridifolium W. Pequegnat; 1938-4-3 sn Orange Santa Ana Mountains, Trabuco Canyon Comment
  RSA441492  Ribes malvaceum var. viridifolium Lester H. Cushman 1932-3-5 15733 Orange Trabuco Canyon. Comment
  UCSB52466  Ribes malvaceum var. viridifolium Roberts, Fred; Steele, K. 1982-12-26 Orange South Laguna: Niguel Hill; near end of Sea Island Dr; 1.9km SE Aliso Peak; 1.2km E Bench Mark 133 210 Comment
  LA205494  Ribes roezlii W. E. Pequegnat; 1937-8-11 sn Orange Santa Ana Mountains, Santiago Peak Comment
  LA205521  Ribes speciosum C. B. Wolf; 1931-3-6 1863 Orange 1 mi. N of mouth of Harding Canyon, W. slope of Santa Ana Mts Comment
  RSA732252  Ribes speciosum A. C. Sanders, Fred M. Roberts 2008-4-22 35038 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  UCR108368  Ribes speciosum Steve Boyd, B. O'Brien 1998-1-13 10067 Orange Santa Ana Mtns, N end of the Santa Ana Range, head of Mabey Canyon, along Main Divide Road (3S04) about 0.5 mi north of Oak Flat 845 Comment
  IRVC21761  Ricinus communis Fred M. Roberts 1984-11-27 1439 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  OBI70101  Ricinus communis D. G. Kelch 2006-12-9 6 .56 Orange Irvine. University dr along tidal Crk just E of I-73. 9 Comment
  LA85195  Romneya coulteri O. H. Kappler; 1945-6-15 873 Orange Santa Ana Canyon Comment
  RSA0014061  Romneya coulteri Fred M. Roberts 2008-5-30 7018 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  RSA0014069  Romneya coulteri Fred M. Roberts 2008-5-30 7019 Orange Lomas de Santiago: Santiago Creek wash, south of Irvine Mesa, 1.5 km SE Silverado Sch., Irvine Ranch Conservancy. 326 Comment
  RSA797663  Romneya coulteri Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49767 Orange Santa Ana Mountains: Trabuco Canyon Comment
  SBBG104114  Romneya coulteri B. Pitzer, S. Hemstreet 1992-5-21 1938 Orange St Hwy 74, 1 mi uphill from the 2000 ft marker, and on left ca. 1 mi on old paved Rd 762 Comment
  UCR113451  Romneya coulteri R. E. Riefner Jr. 2000-7-6 20- 615 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, NE property, along powerline SE of upper Fremont Canyon 607 Comment
  UCR228803  Romneya coulteri Dick Newell, Don Millar 2011-5-21 157 Orange Peninsular Range; Santa Ana Mtns., along service road to Irvine dam at eastern end of Irvine Regional Park 191 Comment
  CAS-BOT-BC92178  Romneya coulteri var. coulteri A. M. White 1974-6-1 1363 Orange Ca. 20 miles east of Santa Ana, north of Silverado Canyon. 1005 Comment
  CAS-BOT-BC74420  Rorippa curvisiliqua Le Roy Abrams 1901-6-1 1768 Orange Laguna. Comment
  CAS-BOT-BC74421  Rorippa curvisiliqua P. A. Munz 1918-5-4 2208 Orange Laguna Lakes. Comment
  RSA304832  Rosa californica James R. Shevock 1970-4-25 157 Orange Santa Ana Mts. 168 Comment
  SD133065  Rosmarinus officinalis A. C. Sanders 1990-10-6 10202 Orange Newport Bay, North Star County Beach area on SW end of bay, ca. 2 km inland of Hwy. 1. Clearly spontaneous, not planted. 0 Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR193609  Rumex crispus A. C. Sanders, Fred M. Roberts 2008-5-6 35237 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  UCR96898  Rumex crispus Scott D. White 1993-4-28 1285 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  RSA466284B  Rumex crispus M. B. Dunkle 1933-4-9 3289 Orange Dana Point. Comment
  RSA201  Rumex maritimus J. T. Howell 1927-7-15 409 Orange Santa Ana River, Rancho Santa Ana [Botanic Garden] 152 Comment
  UCR107444  Rumex maritimus B. G. Pitzer, M. Georgiady 1997-4-5 3084 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  RSA542460  Rumex salicifolius Fred M. Roberts 1988-4-14 3925 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  JEPS39862  Rumex salicifolius var. salicifolius Lawrence M. Booth 1932-7-4 1245 Orange Newport Bay Comment
  UC2048893  Rumohra adiantiformis R. E. Riefner Jr. 2016-10-27 16 -402 Orange City of Laguna Beach, Crescent Bay Drive, W of Circle Way. Comment
  CAS-BOT-BC454145  Ruppia maritima S. B. Parish; W. F. Parish 1882-10-1 1607 Orange Newport Bay Comment
  RSA304029  Ruppia maritima James R. Shevock 1973-9-30 3220 Orange Almost stagnant at the upper most regions of the upper Newport Back Bay, Newport Beach. Comment
  UCR234135  Salicornia bigelovii Dick Newell 2011-10-2 220 Orange South Coastal Plain, Newport Back Bay, near Big Canyon parking area off Back Bay Dr. 0 Comment
  RSA689541  Salicornia bigelovii R. E. Riefner 2003-8-17 3 -335 Orange Costa Mesa, marsh along Santa Ana River, west of Talbert Regional Park. 11 Comment
  SFV20020  Salicornia depressa A. Dittmer, S. Dark 2004-10-3 75 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
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Feb 9 2020
  POM201915  Salicornia virginica L. M. Booth 1932-8-5 1357 Orange Bolsas Marsh. Comment
  UCR158157  Salicornia virginica Adrian Wolf 1998-5-27 341 Orange South Coast, Newport Slough, south of oil fields, between Huntington Beach, Costa Mesa and Newport Beach, just south of the channelized mouth of the Santa Ana River 2 Comment
  RSA5874  Salicornia virginica C. B. Wolf 1932-9-13 4026 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., & 1/2 mi. west of Los Alamitos Blvd., (Triangle waste ground at NW corner of SW 1/4 sect. 30 T4S R11W) 8 Comment
  JEPS38488  Salix exigua Alice King Apr. 1908 Orange near Santa Ana; Santa Ana River Comment
  POM177842  Salix exigua Marcus E. Jones 1930-3-3 26532 Orange Santa Ana Mountains. Comment
  RSA698844  Salix exigua Mabel Harvey s.n. Orange Silverado Canyon Comment
  UC492353  Salix exigua var. hindsiana Carl B. Wolf 1932-4-15 2954 Orange near Santa Ana R. Rancho Santa Ana (along river s of pear orchard); Santa Ana Canyon 120 Comment
  POM182034  Salix gooddingii Carl B. Wolf 1932-4-15 2955 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  RSA0093589  Salix gooddingii Fred M. Roberts 2014-4-21 7855 Orange South Coast. SAN JOAQUIN HILLS: Laguna Lake 1 (Upper Laguna Lake), south basin. 113 Comment
  RSA731955  Salix gooddingii Fred M. Roberts 2007-12-12 6702 Orange Santa Ana Canyon: Santa Ana River, south of Green River Golf course on south side of river, 0.4km E Coal Cyn. Rd. and 0.7km W Riverside Co. line. 129 Comment
  PASA2677  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  LA208698  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7684 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208700  Salix laevigata Carl Hedin; Joseph Ewan 1933-3-19 7686 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  LA208724  Salix laevigata Carl B. Wolf; 1932-4-8 2949 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, at SE corner of pear orchard in Botanic Garden 120.0 Comment
  LA210261  Salix laevigata Lawrence M. Booth; 1932-12-16 1380 Orange Santa Ana River, W of Wolfe's Ranch, 0.5 mi from ocean Comment
  UC506445  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7686 Orange Comment
  UCR241039  Salix laevigata Robert DeRuff 2011-1 576 Orange South Coast, Upper Newport Bay, Fish and Game headquarters at Shellmaker 4 Comment
  UCSB52859  Salix laevigata Roberts, Fred; Camp, H. 1984-4-24 Orange Wagon Wheel Regional Park: Wagon Wheel Canyon, 2.9km ENE Median Rancho Survey Mark; 0.5km WNW Bench Mark 422 135 Comment
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Oct 28 2018
  RSA184140  Salix lasiolepis I. L. Wiggins 1966-2-4 20417 Orange Watercourse near mouth of Trabuco Canyon.Waterfront St. near Mission Rock Terminal, San Francisco Comment
  RSA5245  Salix lasiolepis Carl B. Wolf 1932-9-13 4033 Orange Bryant Ranch: Triangle of waste ground S of Bryant Ave., and 1/2 mi. west of Los Alamitos Blvd. 8 Comment
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Apr 11 2014
  RSA0071935  Salix lasiolepis CNPS Accuracy Assessment Team 2014-4-28 898 .1 Orange Black Star Canyon. Comment
  NY284114  Salix nigra var. vallicola L. Abrams 1903-4-16 3256 Orange Santa Ana River, near Orange Comment
  CAS-BOT-BC126307  Salix sessilifolia Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CDA25746  Salsola tragus A. C. Sanders, Fred M. Roberts 2008-9-18 36080 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. Comment
  RSA12656  Salsola tragus E. R. Johnson 1934-7-26 6040 Orange Grain field west of the Rancho Santa Ana Botanic Garden. 198 Comment
  RSA734986  Salsola tragus A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35282 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCSB48204  Salsola tragus Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo: Calif. Rte. 74, 5.2 km ENE San Juan Capistrano by road 100 Comment
  POM201685  Salvia apiana L. M. Booth 820 Orange Santa Ana Canyon Comment
  RSA584710  Salvia apiana Fred M. Roberts 1989-6-7 4378 Orange Santa Ana Mountains: Upper Gypsum Canyon along ridge between Gypsum and Blind Canyon, c. 6.3 km WSW Sierra Peak. 411 Comment
  RSA658204  Salvia apiana T. A. Daubert 1991-5-19 660 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA663  Salvia apiana J. T. Howell 1927-6-3 s.n. Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751323  Salvia apiana A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35292 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  SEINET3242545  Salvia columbariae Norman C. Cooper 1944-1 1349 Orange Elsinore Mtn. Orange Co. 1067 Comment
  UCLA70172  Salvia columbariae W. E. Pequegnat 1937-9-7 101 Orange Santiago Peak; Santa Ana Mts. Comment
  UCR215306  Salvia columbariae Fred M. Roberts, Eliza L. Maher 2008-3-26 6795 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve, 0.8 km west of Marine Institute, Dana Point Harbor 60 Comment
  HSC14346  Salvia columbariae J. J. Wagoner 1965-4-11 24 Orange Tucker Bird Sanctuary in Modjeska Canyon 183 Comment
  UCSB47594  Salvia columbariae Roberts, Fred 1980-5-3 Orange Santa Ana Mtns; San Juan Canyon: Rte.74; 0.6 km E San Juan Guard Station 238 Comment
  CAS-BOT-BC233674  Salvia leucophylla Carl B. Wolf 1932-6-2 3701 Orange Rancho Santa Ana between Administration Bldg. and tennis court, Santa Ana Canyon 198 Comment
  UCSB50643  Salvia leucophylla Roberts, Fred; Allen, R. 1982-7-4 Orange Chino Hills; Carbon Canyon, Carbon Canyon Rd; 0.6km by road SW county line; 2.3km NNW Gilman Peak 250 Comment
  HSC14369  Salvia mellifera J. J. Wagoner 1965-4-11 17 Orange 4 mi. N of Modjeska Canyon off Irvine Rd. near Irvine Lake Comment
  UCR106308  Salvia mellifera B. G. Pitzer, M. Georgiady 1997-4-5 3098 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UC1936222  Salvinia minima R. E. Riefner Jr. 2008-7-9 08 -219 Orange City of Laguna Beach, bluff area W of West Street and Pacific Coast Highway 4 Comment
  POM201930  Sambucus mexicana L. M. Booth 1932-5-27 s.n. Orange Newport Bay. Comment
  RSA734894  Sambucus mexicana A. C. Sanders 2008-5-28 35431 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA748256  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  UCR193031  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-6-17 35517 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA788901  Sambucus nigra Fred M. Roberts 2008-6-12 7039 Orange Lomas de Santiago: Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  POM201856  Samolus parviflorus L. M. Booth 1932-7-19 s.n. Orange Bolsas Marsh. Comment
  RSA48925  Sanicula arguta P. A. Munz 1949-5-26 13378 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  UCR205956  Sanicula arguta Scott D. White 2003-3-21 8813 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR209331  Sanicula arguta Fred M. Roberts 2009-4-11 6888 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  UCR220955  Sanicula arguta Dick Newell, Don Millar 2010-3-16 012 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, above Agua Chinon at Box Canyon Rd, 2.81 miles north of Hwy 241 toll road and 2.77 miles east of 133 toll road 427 Comment
  RSA749317  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 Orange Santa Ana Mtns.: Upper Weir Cyn., east fork along ridge just west of SR241, 3.4 km E Robber s Peak, Irvine Land Conservancy. 437 Comment
  UCR209376  Sanicula bipinnatifida Fred M. Roberts, Linda Farley 2008-3-28 6819 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, east fork along ridge just west of SR 241, 3.4 km east of Robber's Peak 437 Comment
  UCR234143  Sanicula crassicaulis Dick Newell, Don Millar 2012-3-13 230 Orange South Coastal Plain, Buck Gully, city of Newport Beach 148 Comment
  POM9089  Sanicula crassicaulis P. A. Munz, R. D. Harwood 1920-4-24 3762 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA609760  Sarcocornia pacifica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay. Comment
  RSA734890  Schedonorus arundinaceus A. C. Sanders, Mitch Provance 2008-5-20 35410 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  OBI30170  Schinus molle Shelley Mackay 1971-4-29 98 Orange Carbon Canyon off of Carbon Canyon Rd. 152 Comment
  CDA1078  Schinus terebinthifolius D. G. Kelch 2006-12-9 6 .572 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC19942  Schismus barbatus Gordon A. Marsh, Karlin G. Marsh 1983-5-2 s.n. Orange Burn area between Coal Canyon and Gypsum Canyon. Santa Ana Mountains 421 Comment
  CAS-BOT-BC111473  Schoenoplectus americanus John Thomas Howell 1927-7-19 2805 Orange In shallow water, Santa Ana River bottom, Santa Ana Canon 152 Comment
  RSA797438  Schoenoplectus americanus Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  RSA92  Schoenoplectus americanus J. T. Howell 1927-7-19 444 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  JEPS83156  Schoenoplectus californicus L. M. Booth 1932-6-9 1176 Orange Coastal Santa Ana River Comment
  UCSB56474  Schoenoplectus californicus Thorne, Robert 1975-4-6 Orange San Joaquin Marsh: near Irvine and coast Comment
  RSA0071942  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-5-9 9346 Orange Loma Ridge West. Comment
  RSA91  Schoenoplectus californicus J. T. Howell 1927-6-30 243 Orange Bryant Ranch near Long Beach. 15 Comment
  POM1398  Schoenoplectus maritimus C. B. Bradshaw s.n. Orange Laguna region: alkali lake. Comment
  UCR207546  Scirpus cernuus O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  UC537256  Scirpus maritimus Lawrence M. Booth 1932-5-30 1133 Orange Newport Lagoon Comment
  JEPS48809  Scirpus robustus Lawrence M. Booth 1932-7-29 1328 Orange edge of bay Newport Bay (e. side of lagoon) Comment
  RSA0135521  Scirpus robustus David E. Bramlet 2005-7-1 3889 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  JEPS11402  Scrophularia californica Alice King April, 1908 Orange Santiago Creek; Santa Ana Mts Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  RSA425208  Scrophularia californica subsp. floribunda F. R. Fosberg 1931-6-21 S- 5134 Orange Silverado Canyon. Santa Anita Mts. Comment
  UC1618101  Scutellaria tuberosa Donald G. Nelson 1935-7-6 258 Orange San Juan Canyon Comment
  CAS-BOT-BC61966  Selaginella John Thomas Howell 1937-7-22 2834 Orange Claymine Canyon, Santa Ana Mts. 182 Comment
  RSA542662  Senecio californicus Bill O'Connell 1991-5-31 4 Orange San Joaquin Hills: Pelican Hill, west side 190 Comment
  RSA650644  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Upper Blind Canyon. The site is found beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon. This locality is 1.7km east of Weir Canyon. 354 Comment
  CAS-BOT-BC333069  Senecio flaccidus var. douglasii John Thomas Howell 1927-6-6 2442 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  LA203917  Senecio flaccidus var. douglasii W. E. Pequegnat; 1937-8-19 39 Orange Santa Ana Mountains, Trabuco Peak 1371 Comment
  RSA472959  Senecio flaccidus var. douglasii F. R. Fosberg 1931-6-21 S- 5091 Orange Lower Santiago Canyon. Comment
  RSA0124181  Senecio flaccidus var. douglasii M. B. Dunkle 1934-3-18 3973 Orange Upper San Juan Canyon. 610 Comment
  RSA0127340  Senecio vulgaris Fred M. Roberts 2016-3-17 8022 Orange San Joaquin Hills: City of Irvine, Ridge between Coyote Canyon and Bommer Canyon along Turtle Ridge Trail, 0.6 km NNE Signal Peak and 1.1 km SW Cattle Camp. 314 Comment
  RSA747607  Senecio vulgaris Fred M. Roberts 2000-5-4 5314 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., west of SR 241, 1.9 km E Rattlesnake Reservoir dam and 2.1 km WSW Bee Peak. 210 Comment
  IRVC905  Senecio vulgaris I. L. Wiggins 1966-3-31 20569 Orange Fullerton; associated road 200m S of Imperial Highway on shoulder. Southern Coastal Comment
  CAS-BOT-BC438199  Sesuvium verrucosum A. C. Sanders; D. Maleug; K. D. Jones 2000-4-19 23334 Orange Pacific Coast: Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 11 Comment
  POM201707  Sesuvium verrucosum L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  POM765  Sesuvium verrucosum D. L. Crawford s.n. Orange Laguna Canon. Comment
  CLARK-A1528-930  Setaria geniculata Patricia A. Andrews 1975-6-26 5917 Orange Capistrano Bay Beach 9 Comment
  IRVC21695  Setaria lutescens Fred M. Roberts 1984-8-6 1366 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  RSA723481  Setaria megaphylla R. E. Riefner 2006-11-12 6 -667 Orange City of Newport Beach, urban creek draining into San Diego Creek at confluence with Newport Bay; San Diego Creek at SR-73 overpass. 6 Comment
  CAS-BOT-BC243594  Setaria parviflora Helen D. Geis 1902-1-1 560 Orange Unspecified Comment
  RSA159413  Setaria parviflora I. L. Wiggins, John H. Thomas 1962-6-27 309 Orange Orange County, weeds near intersection of 18th and Main Streets, Santa Ana Comment
  IRVC21654  Setaria viridis R. L. Allen, F. M. Roberts 1982-7-4 A 666 Orange Chino Hills: Carbon Canyon, Carbon Canyon Rd. (State Hwy 142), 1.1 - 1.5 mi SW of the San Bernardino County line. Santa Ana Mountains Comment
  UC1013072  Sidalcea neomexicana C. L. Hitchcock 1952-5-30 19547 Orange about 11 mi e Long Beach (about 100 yards n of Katella Ave to w of Hanson St.); e of Long Beach Comment
  CAS-BOT-BC205739  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-5-25 7822 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  CAS-BOT-BC205741  Sidalcea neomexicana subsp. thurberi I. Johnston 1917-5-30 1127 Orange Chino Creek south of Ontario 152 Comment
  SEINET6947338  Sidalcea sparsifolia W. P. Vestal, A. G. Vestal 1955-3-24 3453 Orange Trabuco Canyon, 5 miles east of El Toro. Comment
  SEINET3155822  Silene W. B. Crockatt 1908-6-1 sn Orange Capistrano valley 76 Comment
  RSA539415  Silene antirrhina Fred M. Roberts, Carol A. Roberts 1988-6-9 4088 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, south slope. 0.4km SW summit. 1518 Comment
  UCR238213  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA763518  Silene californica Doris Bowers 1965-5-10 167 Orange Near California State Forestry Office, Orange 152 Comment
  JEPS50934  Silene gallica Alice King March 1908 Orange Santa Ana Comment
  SFV17356  Silene gallica J. N. Hogue, D. L. Bishop 1998-4-8 102 .1 Orange Santa Ana Mountains San Juan Canyon near Lower San Juan Picnic Area. 396 Comment
  RSA0054829  Silene laciniata Keith E. Hoffmaster 1934-7-15 110 Orange Santa Ana Mts. (Modjeska). Comment
  UCR242755  Silene laciniata subsp. laciniata Fred M. Roberts 2012-5-10 7584 Orange SAN JOAQUIN HILLS: Buck Gully, south fork, north slope of Pelican Hill, along Pelican Hills Dr., 0.3 km N summit Pelican Hill. 189 Comment
  RSA175135  Silene laciniata subsp. major R. F. Thorne 1963-7-26 32842 Orange Tin Mine Canyon above Beek s Spring, Trabuco District, Santa Ana Mountains, Cleveland National Forest. 762 Comment
  RSA438884  Silene laciniata subsp. major F. R. Fosberg 1931-6-2 748 Orange Silverado Canyon, Santa Ana Mountains. Comment
  RSA584714  Silene laciniata subsp. major Fred M. Roberts 1989-5-18 4372 Orange Santa Ana Mountains: Upper Gypsum canyon, above ridge road, ca. 6.4 km WSW Sierra Peak. 415 Comment
  RSA696563  Silene laciniata subsp. major Minor Warne 1934-5-19 s.n. Orange Live oak Canyon. Comment
  SD245326  Silene laciniata subsp. major Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49595 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  IRVC906  Silybum marianum B. Savage 1963-5-15 Orange Newport Beach Comment
  RSA473583  Silybum marianum M. B. Dunkle 1938-4-6 5372 Orange Santa Ana Canyon Comment
  UCR102027  Silybum marianum B. G. Pitzer 1997-4-15 3144 Orange San Joaquin Hills, Crystal Cove State Park, north of the N end of the City of Laguna Beach. Along Moro Canyon Trail, from beginning to a point c. 1.75 mi. up the canyon. 49 Comment
  RSA647891  Silybum marianum Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-1 12 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA752717  Sisymbrium altissimum Fred M. Roberts, Sandra Leatherman, Jennifer S. Pareti 2009-4-14 7153 Orange Dana Point Headlands: Dana Strand Beach and slopes above beach, 0.8 km WNW Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  CAS-BOT-BC75240  Sisymbrium irio Ira L. Wiggins 1966-3-5 20497 Orange Along Highway S-18 about 4.5 miles east of Laguna Beach. Comment
  RSA0015957  Sisyrinchium bellum Fred M. Roberts 2012-4-24 7536 Orange San Joaquin Hills: Buck Gully, above main trail, 2 km W Signal Peak and about 0.4 km S San Joaquin Hills Road. 155 Comment
  UCR151027  Sisyrinchium bellum Scott D. White 1997-5-6 5039 Orange Peninsular Ranges; Santa Ana Mtns., Lomas de Santiago; Santiago Canyon area; unnamed tributary to Santiago Creek flowing from the SW, directly west of Pancho Canyon 396 Comment
  UCR256944  Sisyrinchium bellum Naomi Fraga 2009-5-11 2716 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  RSA539347  Sisyrinchium bellum Fred M. Roberts 1987-4-3 3348 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Peak. 109 Comment
  IRVC18594  Sitanion jubatum Karlin G. Marsh 1980-8-13 s.nn. Orange S of Trabuco Canyon, Sect. 12, Hinricks Parcel. Santa Ana Mountains Comment
  UCR154353  Solanum americanum Mark A. Elvin 2004-5-2 3415 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  SEINET5571704  Solanum clokeyi H. S. Gentry 1962-1 19831 Orange Huntington Botanical Garden. Comment
  HSC21301  Solanum douglasii S. M. Clapp 1966-4-7 22 Orange 3 mi. from Modjeska Canyon towards Silverado Canyon 152 Comment
  UCD126941  Solanum douglasii A. C. Sanders 1990-10-6 10198 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  RSA0045320  Solanum douglasii G. Jentges 1932-4-30 68 Orange Wash near railroad track. Comment
  RSA733736  Solanum douglasii Goldie Peale 1932-5-1 s.n. Orange Outskirts of Orange. Near Lemon Heights Blvd. Comment
  SEINET12274722  Solanum douglasii J. F. Bright, Wyman, C. 1933-1 8202 Orange in foothills near Laguna Comment
  RSA17565  Solanum umbelliferum Carl B. Wolf 1936-6-17 7953 Orange Long Ortega Highway San Juan Canyon, 5/10 mi. e. of Orange Co. Line Riverside 366 Comment
Read comments
Aug 9 2014
  RSA5320  Solanum umbelliferum B. D. Stark 1932-12-30 4475 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA733735  Solanum umbelliferum Jeanne Paxton 1934-2-25 s.n. Orange Sugar Loaf Canyon, Arch Beach Comment
  RSA0045318  Solanum xanti Pomeroy 1929-2-10 72 Orange Silverado Canyon. PR8. Comment
  CAS-BOT-BC364910  Solidago velutina subsp. californica Carl B. Wolf 1933-8-24 5398 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA0012749  Sonchus asper Fred M. Roberts 2012-5-10 7574 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA0127412  Sonchus asper Fred M. Roberts 2016-3-17 8007 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR191421  Sonchus oleraceus A. C. Sanders, Fred M. Roberts 2008-4-8 34771 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  UCSB48372  Sonchus oleraceus Roberts, Jr., Fred 1982-5-22 Orange Dana Point: jct. of Stone Hill Dr. & Selva Rd.; 1.0 km ESE Dana Hills High School; 1.7 km SW Marco Forster Junior High School 40 Comment
  RSA697068  Sonchus oleraceus Kenneth Beard 1934-02 s.n. Orange Walnut grove on Freeman Street, Santa Ana. Comment
  RSA719412  Sorghum bicolor Fred M. Roberts, Robert L. Allen 2006-10-8 6433 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  CAS-BOT-BC235341  Sorghum halepense Helen D. Geis 1902-1-1 557 Orange Unspecified Comment
  IRVC15382  Sorghum halepense J. B. Anderson 1966-5-2 634 Orange MacArthur Blvd. near the Newport Freeway. southern coastal Comment
  IRVC24181  Sorghum halepense Fred M. Roberts 1985-9-17 2258 Orange Irvine; lot between Walnut Avenue, Harvard Avenue and Peter's Creek Channel. southern coastal 20 Comment
  JEPS73760  Sorghum halepense L. M. Booth 1932-7-18 1265 Orange Newport Bay, Costa Mesa Comment
  UCSB48224  Sorghum halepense Roberts, Fred 1981-6-24 Orange San Juan Capistrano; 3.2 km. S. Saddleback Community College on Rancho Viejo Road 42 Comment
  HSC15089  Spartium junceum S. M. Clapp 1966-4-3 4 Orange Union Oil Prop., just S of Imperial Hwy. and E of Associated Rd. 61 Comment
  IRVC2454  Spartium junceum E. Cowper 1964-4-25 s.n. Orange Laguna. Southern Coastal Comment
  SEINET10452464  Spartium junceum James S. Miller 1992-5-8 Miller 7449 Orange 2 mi E of the border of Cleveland National on California route 74. 310 Comment
  UCR228775  Spartium junceum Dick Newell, Don Millar 2011-5-24 164 Orange Peninsular Range; Santa Ana Mtns., Silverado Canyon Rd. c. 1 mile above Blackstar Canyon Road 333 Comment
  IRVC19910  Spergula arvensis Karlin G. Marsh 1983-6-25 Orange Coyote Canyon, south branch of Coyote Canyon dump. San Joaquin Hills Comment
  IRVC367  Spergula arvensis E. P. Cowper 1965-4-11 Orange [Newport] Back Bay, Bayside Dr. Newport Beach Comment
  RSA0097853  Spergularia bocconi Scott D. White, Brian Leatherman 1997-6-12 5339 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2-4 miles E of I-15/Highway 74 junction. 46 Comment
  RSA0098512  Spergularia marina Scott D. White 1998-6-26 6780 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  CAS-BOT-BC236658  Sporobolus airoides John Thomas Howell 1927-6-21 2568 Orange Arroyo in hills on north side of Santa Ana Canyon 152 Comment
  CDA14320  Sporobolus indicus F. Covely 1998-8-3 s.n. Orange South Coast; Vampus of Huntington Beach U.H.S.D., 525 Yorktown Ave., Huntington Beach. 0 Comment
  POM202024  Stachys bullata L. M. Booth 1932-5-19 1080 Orange Newport Bay. Comment
  UCSB48198  Stachys rigida Roberts, Fred 1981-6-26 Orange Santa Ana mtns; Viejo Cyn., 0.5 km N Calif. Rte 74; 2.7 km E San Juan Guard Station 317 Comment
  RSA0026254  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7796 Orange Peninsular Ranges: Santa Ana Mtns: Lower Silverado Canyon along Silverado Creek on north side of Silverado Canyon Road, 0.6 kilometers ENE Silverado School and 1.4 kilometers up stream Black Star Road Crossing. 320 Comment
  RSA0127596  Stachys rigida var. quercetorum Fred M. Roberts 2016-3-17 8026 Orange San Joaquin Hills: City of Irvine, west slope, Bommer Canyon along Turtle Ridge Trail, 0.8 km NE Signal Peak and 0.9 km SW Cattle Camp. 265 Comment
  RSA452250  Stanleya pinnata Claire Kibbe 1936-07 19961 Orange Santa Ana Canyon. Comment
  CAS-BOT-BC374782  Stebbinsoseris heterocarpa K. L. Chambers 1954-4-24 482 Orange Hwy. 18-91, Santa Ana Canyon, 7 mi. e. of Olive (hence 11 mi. e. of junction with Hwy. 101 in Anaheim) Comment
  HSC77817  Stebbinsoseris heterocarpa K. L. Chambers 1954-4-24 482 Orange Hwy. 18-91, Santa Ana Canyon, 7 mi. E of Olive (hence 11 mi. E of junction with Hwy. 101 in Anaheim) Comment
  RSA542590  Stebbinsoseris heterocarpa Fred M. Roberts, Karlin G. Marsh 1988-4-25 3934 Orange San Joaquin Hills: East flank Pelican Hill, 0.9 kilometer SE summit. 120 Comment
  CAS-BOT-BC393824  Stellaria media Ira L. Wiggins 1966-3-22 20540 Orange near end of pavement about 5 miles above Ranger Station, Cleveland National Forest Comment
  UCD99453  Stellaria media Ira L. Wiggins 1965-7-5 20368 Orange Orange grove 2 miles east of Atwood, on N side of Orangethorpe Ave. Comment
  RSA683237  Stenotaphrum secundatum Scott D. White, Matt Carlton 2003-11-20 9867 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  UCR67009  Stenotaphrum secundatum A. C. Sanders 1990-10-6 10191 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  CAS-BOT-BC375124  Stephanomeria cichoriacea Carl B. Wolf 1933-8-24 5393 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  UCR240091  Stephanomeria cichoriacea Dick Newell, Judy Booth 2012-10-14 306 Orange Peninsular Range; Santa Ana Mtns., Trabuco Canyon, 2 miles north of Live Oak Cyn. Rd. 457 Comment
  JEPS36708  Stephanomeria diegensis L. M. Booth 1932-8-5 1360 Orange Newport Bay Comment
  UCR73133  Stephanomeria diegensis Scott D. White 1992-9-23 850 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  UCR177439  Stipa cernua Scott D. White, Amanda Duchardt 2003-3-27 8864 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  SD144498  Stipa miliacea Scott D. White 1997-3-28 4826 Orange Santa Ana Mtns: Above Modjeska Canyon: along Harding Cyn Truck Trail, near Modjeska Cyn Rd and wash crossing. 424 Comment
  UCR192484  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-3-25 34512 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA588794  Stylocline gnaphaloides Fred M. Roberts, D. Bontrager 1990-4-18 4566 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holdong), 5.5 km SE Playa Survey Marker. 152 Comment
  POM19056  Styrax redivivus F. W. Peirson 1923-5-5 3493 Orange Trabuco Canyon. 640 Comment
  UCSB10703  Styrax redivivus Lloyd, Robert 1959-4-17 Orange 8.5 miles south of West Corona on the Oak Flats Fire Road 883 Comment
  UC217430  Suaeda calceoliformis H. M. Hall 1920-10-4 11221 Orange Cypress Comment
  RSA70021  Suaeda calceoliformis F. W. Peirson 1924-8-29 5078 Orange 3 miles from Balboa inland along creek Comment
  RSA696273  Suaeda californica Keith E. Hoffmaster 1927-6-5 s.n. Orange near Newport Comment
  RSA70016  Suaeda esteroa F. W. Peirson 1924-8-29 5082 Orange 2.5 miles from Balboa on road inland along creek. Comment
  SEINET770649 Image available Suaeda esteroa J. Henrickson 1970-7-25 5029 Orange 3 1/2 miles NW of Huntington Beach on sandy margin of Bolsa Bay. 1/4 mile SE of Warner Ave. along Pacifico Coast Hwy. Comment
  POM202054  Suaeda moquinii L. M. Booth 1932-7-4 1247 Orange Newport Lagoon 3 Comment
  POM259490  Suaeda taxifolia A. C. Keller 1937-11-26 s.n. Orange Loc. Alt. 20 to 40 ft. on cliffs, Doheny Palisades, Highway 101 Comment
  RSA703389  Suaeda taxifolia R. E. Riefner Jr. 2004-5-6 4 -171 Orange Newport Beach, north side of Pacific Coast Hwy., west of Bayside Drive near Newport Dunes Beach Club. 10 Comment
  SD133110  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange Newport Bay, Westcliff Park area on the southwest end of the bay. 0 Comment
  UCR66368  Suaeda taxifolia A. C. Sanders 1990-10-6 10180 Orange South Coast, Newport Back Bay, Westcliff Park area on the southwest end of the bay, c. 1 mile inland from Hwy 1 (Pacific Coast Hwy). 6 Comment
  UCSB36511  Suaeda taxifolia Ferren, Wayne; Whitmore, S. 1980-8-27 Orange Newport Backbay; along Backbay Drive; ca. 1.5 km. NE of Rt. 1, Newport Beach Comment
  UCR94530  Symphoricarpos albus var. laevigatus Steve Boyd, T. S. Ross 1994-9-14 8355 Orange Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon trail crossing. 305 Comment
  IRVC19706  Symphoricarpos mollis Karlin G. Marsh 1983-7-5 Orange Bonito Canyon Reservoir; open grassy field. Irvine Comment
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Oct 21 2013
  LA204603  Symphoricarpos mollis W. E. Pequegnat; 1937-8-19 37 Orange Santa Ana Mountains, Trabuco Peak Comment
  RSA5378  Symphoricarpos mollis B. D. Stark 1932-12-30 4461 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA752319  Symphoricarpos mollis Fred M. Roberts 2008-5-20 7132 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Cyn., 0.8 km NW Bolero Spr. and 3.1 km WNW Bolero Lookout. Irvine Ranch Conservancy. 467 Comment
  UCSB52474  Symphoricarpos mollis Roberts, Fred 1983-1-19 Orange Laguna Beach; Park Canyon, west flank of Temple Hill, along Park Canyon Ave., 1.3 km. NE Thurston School; 1.7 km. SE bench mark 104 194 Comment