Search Results — 2000 specimen records retrieved (1646 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM739  Abronia maritima D. L. Crawford 1916-7-28 s.n. Orange Abalone Point Comment
  RSA1554  Abronia maritima J. T. Howell 1928-7-10 1087 Orange Capistrano Beach. 0 Comment
  CAS-BOT-BC229410  Abronia umbellata L. R. Abrams 1917-6-23 6573 Orange Balboa Comment
  UCR16336  Abronia umbellata subsp. variabilis Steve Kulju 1974-5-27 s.n. Orange South Coast, Sunset Bay, 1 mile SE of the city of Seal Beach on State Hwy 1 5 Comment
  JEPS61217  Abronia umbellata var. umbellata L. M. Booth 1932-5-25 1113 Orange Balboa Island; Newport Bay Comment
  POM212062  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 76 Comment
  RSA3226  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 107 Comment
  RSA700927  Abronia villosa var. aurita Keith E. Hoffmaster 1933-4-5 s.n. Orange Near Newport Comment
Read comments
Aug 27 2011
  CDA1045  Acacia saligna D. G. Kelch 2006-12-9 6 .533 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  IRVC29884  Acacia saligna Mark A. Elvin, D. Kelch, Barry S. Nerhus, Patricia Iluore 2006-12-9 5325 Orange Newport Backbay; along Bayside Drive ca. 100 m W of Eastbluff Dr. Southern Coastal 5 Comment
  RSA76986  Acer macrophyllum F. W. Peirson 1925-4-11 5736 Orange Silverado Canyon, Santa Ana Mountains. 610 Comment
  SD152962  Achillea millefolium Steve Boyd, Tim Ross 1992-5-20 7455 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area; western edge of the wilderness in Lucas Canyon along a new sedtion of trail heading up major side canyon northward to Sitton Peak Road. 305 Comment
  RSA17538  Achillea millefolium var. californica Carl B. Wolf 1936-6-22 8004 Orange Santa Ana Mtns, 3 miles above FS gate IN Santiago Canyon, along truck trail to Modjeska Peak. 762 Comment
  RSA548854  Achnatherum coronatum Fred M. Roberts, G. A. Marsh 1986-5-16 2859 Orange Upper Lucas Canyon watershed, Sitton Peak Truck Trail, 3km WSW Sitton Peak 730 Comment
  UCSB42219  Acmispon americanus Roos, John 1965-6-16 Orange Dana Point near Doheney Beach Comment
  SEINET5327559  Acmispon glaber var. glaber I. W. Clokey 1932-3-1 5329 Orange Laguna Beach; slopes facing ocean Comment
  SEINET2429609  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  UC537027  Acourtia microcephala Lawrence M. Booth 1932-7-4 1243 Orange Newport Lagoon Comment
  UCSB71570  Acourtia microcephala Sanders, A.; Roberts, Fred 2008-7-3 Orange Peninsular Range; Santa Ana Mtns.; Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor (Black Star Canyon 7.5' Q.) 415 Comment
  UC1544779  Adenostoma fasciculatum D. S. Seigler and E. Rodriguez 1978-5-13 11003 Orange Trabuco Canyon Comment
  SD247725  Adenostoma fasciculatum R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA598917  Adenostoma fasciculatum var. fasciculatum Scott D. White 1997-3-28 4848 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  UCSB48001  Adenostoma fasciculatum var. fasciculatum Roberts, Fred 1980-6-29 Orange Santa Ana Mtns., Viejo Canyon, 0.4km N Calif. Rte 74; 2.2km ENE San Juan Guard Station 341 Comment
  RSA687673  Adiantum capillus-veneris Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  RSA610231  Adiantum capillus-veneris Fred M. Roberts 1997-4-19 5012 Orange Santa Ana Mtns. San Juan Canyon along San Juan Creek at CA Rte 74 bridge just E of San Juan Hot Springs, 0.8 km SSE Juan Rancho Survey Mark. 235 Comment
  RSA0119682  Adiantum jordanii Fred M. Roberts 2015-3-10 7923 Orange San Joaquin Hills: Niguel Hill, on ridge above Aliso Canyon ear end of Ceanothus Drive (Hangover House property), 0.4 km WNW summit Aliso Peak. 122 Comment
  SEINET10470274  Adiantum jordanii G. B. Grant 1904-4-20 Grant 26 Orange Shady, rocky, moist. Catalina Island. Comment
  IRVC3119  Adiantum raddianum Don Pfirrmann 1965-4-28 HS 0579 Orange Newport Beach; 252 Mayflower Drive. Southern Coastal Comment
  UCR188945  Aesculus californica Robert DeRuff 2004-1 549 Orange Newport Beach, Upper Newport Bay, Eastbluff North, below and north of intersection of Back Bay Drive and Eastbluff Drive 7 Comment
  UC592771  Agnorhiza ovata P. C. Everett 1935-6-18 Orange Los Pinos Potrero, Main Divide Motorway Santa Ana Mts. 914 Comment
  CAS-BOT-BC127479  Agrostis capillaris Ira L. Wiggins 1965-10-24 20291 Orange Roadside at corner of Yorba LInda and State College Boulevards, Fullerton. Comment
  RSA773555  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Lomas de Santiago: Loma Ridge, East Fork Rattlesnake Canyon, ca. 2.6 km NE of Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 235 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
  UCD53225  Agrostis pallens R. Tofsrud 1951-4-1 s.n. Orange Orange-San Diego County borders: Santa Ana Mts. Comment
  UCSB48019  Agrostis stolonifera 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
  UCR193762  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-7-3 35703 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
  RSA725525  Ailanthus altissima Fred M. Roberts, Robert L. Allen 2007-9-28 6599 Orange Foothill Trabuco area: Upper Aliso Creek at SE corner of El Toro Road and Valle Vista Way, c.a. 1.8 km NE Upper Oso Reservoir. 308 Comment
  UCSB18193  Allium haematochiton 1962-3-9 Orange 12.3 miles east of San Juan Capistrano on State 74 243 Comment
Read comments
Apr 10 2016
  RSA0063249  Allium marvinii Philip A. Munz 1949-5-26 13373 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  RSA562756  Allium praecox Steve Boyd, Timothy S. Ross 1992-5-19 7432 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucan Canyon Trail in Lucas Canyon, just upstream from divide with Aliso Canyon. 366 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
  RSA263729  Allophyllum glutinosum E. W. Lathrop 1974-6-27 7418 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 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
  RSA638970  Allophyllum glutinosum Valerie L. Soza, LeRoy Gross 1999-6-8 497 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  POM177826  Alnus rhombifolia Marcus E. Jones 1930-1-26 26226 Orange Wildwood Camp, Santa Ana River. Comment
Read comments
Nov 18 2013
  RSA696334  Alnus rhombifolia R. H. McArthur 1934-2-10 s.n. Orange Santiago Canyon above Modjeska Comment
  SD239633  Alnus rhombifolia A. C. Sanders, Kent Beaman 2011-9-27 39903 Orange Peninsular Ranges, Santa Ana Mountains: Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347a^z) of Santiago Peak (Santiago Peak 7.5'Q) 903 Comment
  UCR26948  Alnus rhombifolia E. W. Lathrop 1966-3-23 6100 Orange Santa Ana Mtns, Cleveland National Forest, Trabuco District. 4 mi. NE of Lake Irvine, Black Star Canyon Comment
  SEINET10572636  Aloe Charlene A. Bennett 1976-7-21 Bennett 431 Orange Cultivated plants collected in and around the condominium pacific island Estates in laguna hills; some native shrubs, etc. 152 Comment
  UCR44905  Amaranthus blitoides B. G. Pitzer, L. F. LaPre 1986-10-20 0314 Orange City of Irvine, Drainage channel near intersection of Irvine Blvd. and Sand Canyon Avenue. 91 Comment
  RSA542440  Amaranthus blitoides Fred M. Roberts 1988-10-21 4162 Orange Irvine: Alton Parkway at corner of Jeffrey Rd., 1.5km NNE French Survey Mark. 35 Comment
  RSA724041  Amaranthus blitum subsp. emarginatus R. E. Riefner 2004-8-8 4 -370 Orange City of Anaheim, Santa River bottom near 57-Freeway between Orangewood St. and Chapman Ave. 41 Comment
  UCR111749  Amaranthus retroflexus G. S. Nuessly 1980-11-27 s.n. Orange South Coast, south side of East Santiago Canyon Road, 0.25 mi north [west] of North Windes Drive 137 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
  SD234274  Ambrosia acanthicarpa T. B. Salvato, K. Kurtz 2006-10-15 1916 Orange South Coast: Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue. 6 Comment
  CAS-BOT-BC13771  Ambrosia chamissonis David D. Keck 1933-9-8 2541 Orange Sunset Beach Comment
  UC536897  Ambrosia chamissonis Lawrence M. Booth 1932-5-25 1110 Orange Balboa Island Comment
  UCR109972  Ambrosia chamissonis R. D. Goeden, Don W. Ricker 1970-2-19 s.n. Orange South Coast, Newport Beach, NW edge of town between Seashore Dr., Neptune Ave., 56th and 58th Streets 2 Comment
  RSA416942  Ambrosia chamissonis A. M. Johnson 1931-3-21 3817 Orange Newport. Comment
  RSA696740  Ambrosia chamissonis var. chamissonis R. H. McArthur 1934-4-7 s.n. Orange Near outlet of Santa Ana River. Comment
  RSA696744  Ambrosia psilostachya Anonymous 1934-09 s.n. Orange [Unspecified] Comment
  SD263545  Ambrosia psilostachya Jim Riley 2013-10-15 119 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR224155  Ambrosia psilostachya Fred M. Roberts 2008-7-10 7066 Orange South Coast, Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8 km west norhwest of Marine Institute, Dana Point Harbor 45 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
  UCR158026  Ammannia robusta Adrian Wolf 1998-5-15 273 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  CAS-BOT-BC162062  Ammophila breviligulata L. R. Abrams 1917-6-23 6575 Orange Balboa. Comment
  UCR193782  Amorpha californica A. C. Sanders, Fred M. Roberts 2008-7-3 35680 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  CAS-BOT-BC180618  Amorpha californica var. californica P. C. Everett 1935-6-19 7235 Orange 1/2 mi. below (W.) head of canyon, Trabuco Canyon, Santa Ana Mts. 1066 Comment
  CAS-BOT-BC177254  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana River bottom, Rancho Santa Ana, Santa Ana Canyon 137 Comment
  CAS-BOT-BC177257  Amorpha fruticosa John Thomas Howell 1927-6-6 2449 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  UC1543190  Amorpha fruticosa Donald G. Nelson 1935-4-6 220 Orange n summer ranger station (near the main hwy of San Juan Canyon, e of San Juan Capistrano, s of Cleveland Nat. Forest); Santa Ana Mountains Comment
  RSA499932  Amsinckia intermedia E. A. Purer, Freda Detmers 1932-3-23 15572 Orange near Huntington Beach. Roadside of Coast Highway Comment
  RSA680914  Amsinckia intermedia Scott D. White 2003-3-21 8812 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA722351  Amsinckia intermedia Minor Warne 1934-03 s.n. Orange Laguna Canyon Comment
  UC1178236  Amsinckia intermedia Francia Chisaki 1957-4-3 926 Orange 6 mi s Irvine (jus s of El Toro near top of hill on Hwy 101) Comment
  UC1191048  Amsinckia intermedia Francia Chisaki 1957-4-3 925 Orange 3 mi s Irvine (Hwy 101) Comment
  RSA0089447  Amsinckia intermedia Ken Greby 1985-4-18 17 Orange Alongside Laguna Canyon Rd. approx. 1.5 km. NE from El Toro Rd. 46 Comment
  RSA533911  Amsinckia intermedia Tim Ross, Orlando Mistretta, Mike Hammitt 1991-5-18 5173 Orange San Clemente Island. 1100 feet SSW of Twin Dams, 1450 feet NNW of Bolder marker 491 Comment
  UCD119275  Amsinckia intermedia Francia Chisaki 1957-4-3 925 a Orange On Highway 101, ca. 3 miles S of Irvine. Comment
  IRVC224  Amsinckia menziesii var. intermedia McGuire 1965-5-1 Orange Corona del Mar. Newport Beach Comment
  UCR102025  Anagallis arvensis B. G. Pitzer 1997-3-25 3016 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  POM201809  Anagallis arvensis L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. Comment
  CAS-BOT-BC400328  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
  JEPS12263  Anemopsis californica Alice King June, 1908 Orange Santa Ana Comment
  SBBG61500  Anemopsis californica M. N. Ackley -May-1926 987 Orange Sunset Beach 8 Comment
  UC1618061  Anemopsis californica Donald G. Nelson 1935-6-2 320 Orange n of Brea (mouth of Brea Canyon, on Tonner lease); mouth of Brea Canyon Comment
  RSA226628  Anthemis cotula Christopher Davidson, Gerald L. Benny 1971-6-15 s.n. Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA647882  Anthemis cotula Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 71 Orange 1/2 mile south of Chino Hills State Park Boundary. 228 Comment
  POM6365  Antirrhinum coulterianum Philip A. Munz, L. T. Street, G. Williams 1919-5-3 2623 Orange Santa Ana River Canyon. Comment
  RSA0014992  Antirrhinum coulterianum Fred M. Roberts 2008-5-14 6966 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. 381 Comment
  POM443834  Antirrhinum coulterianum Karlin G. Marsh 1978-6-6 s.n. Orange Santa Ana Mts: Holy Canyon Comment
  RSA425786  Antirrhinum coulterianum Francis W. Pennell, C. Epling 1940-4-21 s.n. Orange 5 miles east of San Luis Capistrano Comment
  RSA737891  Antirrhinum multiflorum R. E. Riefner 2008-6-3 08 -139 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 618 Comment
  RSA698990  Antirrhinum nuttallianum Unspecified 1935-04 s.n. Orange Silverado Canyon. Comment
  UCSB57586  Aphanes occidentalis Roberts, Fred 1986-4-24 Orange RANCHO MISSION VIEJO: Canyon east of Trampas Canyon, S of Hwy 74, 2.6km E Viejo Survey Mark 110 Comment
  UC494727  Aphanisma blitoides Philip A. Munz 1932-3-29 12192 Orange base of sea-cliffs Costa Mesa Comment
Read comments
Dec 4 2014
  UCR141341  Aphanisma blitoides Robert DeRuff 1991-1 422 Orange Southern Coast, Newport Beach, Newport Back Bay, east of Delhi Ditch; bluff side of the wooden horse and bike path 6 Comment
  RSA699125  Apiastrum angustifolium J. R. Bruff 1927-3-16 22 Orange Newport Bluff Comment
  CDA25635  Apium graveolens A. C. Sanders, Fred M. Roberts 2008-6-17 35469 Orange Peninsular Range; Santa Ana Mountains.; Lomas de Santiago, Agustine staging area near Limestone Canyon Road gate at Santiago Canyon Road. Comment
  IRVC20162  Apium graveolens R. L. Allen 1978-8-28 Orange behind Saddlback Ranch Apts., Los Alisos Blvd.; in moist soil, shady location. Mission Viejo Comment
  JEPS12326  Apium graveolens Lawrence M. Booth 1932-6-7 1158 Orange Newport Bay Comment
  UC1424830 Image available Aralia californica E. W. Lathrop 1977-6-16 7656 Orange Big Cone Spring on Maple Springs Rd., Silverado Canyon Santa Ana Mts., Cleveland Nat'l Forest, Trabuco District, Si 1280 Comment
  UCR273466  Araujia sericifera Eric Focht 2016-7-8 001 Orange South Coast, University of California Research and Extension Center, 7601 Irvine Blvd., Irvine 13 Comment
  UCR63783  Araujia sericifera Megan Phillips, D. Mitchell 1990-8-3 s.n. Orange Peninsular Range; Santa Ana Mtns., Hicks Canyon wash, Lomas de Santiago, SW of Rattlesnake Reservoir 76 Comment
  IRVC27880  Araujia sericifera A. C. Sanders, Mark A. Elvin 2003-10-12 27319 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UC1120811  Arbutus menziesii A. Lewis May 1934 427 Orange Cleveland National Forest, Trabuco Canyon Trabuco Canyon; Cleveland National Forest, Trabuco Canyon 1158 Comment
  UCD166561  Arctostaphylos glandulosa Dylan O. Burge 2016-2-23 2090 Orange Santa Ana Mountains, vicinity of Blue Jay Campground, along spur off of Long Canyon Road. 1060 Comment
  UCR273489  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42605 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 1.7 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  UCR281858  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42698 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 3.5 km north of Hwy 74 959 Comment
  CAS-BOT-BC23108  Arctostaphylos glandulosa subsp. glandulosa L. R. Abrams 1901-6-15 s.n. Orange Mt. Dante a So summit 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
  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
  UC1120328  Arctostaphylos glandulosa subsp. zacaensis H. A. Jensen 1937-11-4 415 Orange head of Trabuco Canyon Cleveland National Forest, Elsinore Quadrangle Comment
  RSA683064  Aristida adscensionis Fred M. Roberts 2003-3-19 5609 Orange Donna O'Neill Land Conservancy: Ridges west of Cristianitos Cyn., 1,750m NNW Sycamore gate and 315m W Cristianitos Rd. (Canada Gobernadora., 33 deg 29'51'' N, 117 deg 34'13''W 192 Comment
  RSA704071  Aristida purpurea var. parishii D. E. Bramlet, Fred M. Roberts 2003-3-13 3336 Orange Donna O'Neill Reserve. North east ridge line 762m W of Cristianitos Rd., and 1.15 km N of the E-W Access road., 11S 04 46 955E, 37 05 838N) 198 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
  RSA759263  Arnica discoidea Robt Allen, Christopher M. Barnhill 2008-5-26 s.n. Orange upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road miles down from junction with Main Divide Truck Trail. SW end of short road spur. 1313 Comment
  CAS-BOT-BC133228  Artemisia californica T. B. Salvato 2010-10-27 5137 Orange South Coast: Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  CDA22506  Artemisia californica E. A. Hook, C. Tran 2006-2-4 1 Orange Southern Coastal; San Joaquin Marsh; northwest bluff edge. Comment
  IRVC21707  Artemisia californica Fred M. Roberts, G. A. Marsh 1984-10-16 1419 Orange east bluff, Newport Back Bay, 3.6km W UCI campus center; 0.1km S Camp Survey Mark, Newport Beach 15 Comment
  SD187333  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. 2 Comment
  UCR247873  Artemisia californica Fred M. Roberts 2012-9-6 7700 Orange SAN JOAQUIN HILLS: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 km WNW Pelican Hill summit. 37 Comment
  UCR92774  Artemisia californica F. M. Reed 1927-11-10 5640 Orange South Coast, Sulfur Slide Hill in Santa Ana River Canyon 150 Comment
  SEINET3285075 Image available 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. 320 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
  CHSC35807  Artemisia dracunculus James Henrickson 1973-10-21 8052 Orange Eastern Anaheim, 2 blocks E of Imperial Hwy along La Palma Ave., just N of Santa Ana River. 60 Comment
  POM6088  Artemisia dracunculus Daniel J. Crawford 1916-8-3 s.n. Orange Arch Beach. Laguna Beach Region. Comment
  RSA748272  Artemisia dracunculus A. C. Sanders, Fred M. Roberts 2008-6-17 35514 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA443828  Artemisia tridentata Gordon Marsh, Karlin G. Marsh 1978-5-20 s.n. Orange Santa Ana Mountains, Coal Canyon, near canyon mouth, extreme north end bordering Santa Ana Canyon Comment
  IRVC409  Arthrocnemum subterminale J. B. Anderson 1966-4-16 589 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  CDA23125  Arundo donax Mark A. Elvin, D. G. Kelch 2006-12-9 5310 Orange Southern Coastal; Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Drive, between Campus Drive and Highway 73. Comment
  RSA162797  Arundo donax John Olmsted 1959-9-22 978 Orange Santa Ana River by Sycamore Park about 8-9 miles WSW of corona off of main highway to Santa Ana Mountais. Pacific Ocean Drainage Area. 134 Comment
  UCR130354  Asclepias curassavica A. C. Sanders, Mark A. Elvin 2003-10-12 27323 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA542588  Asclepias eriocarpa Fred M. Roberts, K. Keane 1988-5-25 3998 Orange Rancho Mission Viejo: Lower Canada Chiquita, 1.9km SSE Medium Rancho Survey Mark, UTM 3710800m N, 443500m E 90 Comment
  IRVC19386  Asclepias fascicularis R. L. Allen 1978-8-27 s.n. Orange Laguna Canyon; disturbed area, roadside. San Joaquin Hills? Comment
  IRVC24991  Asclepias fascicularis Fred M. Roberts, R. Fisher 1986-6-18 3014 Orange Irvine; [San Joaquin Hills], east lateral to Shady Canyon, c.a. 2.9km SE French Hill. 82 Comment
  RSA743383  Asparagus asparagoides Fred M. Roberts 2008-5-27 7002 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor). 75 Comment
  UCR188931  Asparagus densiflorus Robert DeRuff 2007-11-24 s.n. Orange Newport Beach, Upper Newport Bay, along Back Bay Drive between Big Canyon and Eastbluff Drive 3 Comment
  UCR159775  Asparagus officinalis Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh Comment
  RSA699721  Aster bernardinus Keith E. Hoffmaster 1933-10-8 1046 Orange Near Newport Bay. Comment
  RSA696240  Aster exilis Keith E. Hoffmaster 1934-10-7 s.n. Orange Near Santa Ana Comment
  POM201791  Aster hesperius L. M. Booth s.n. Orange Newport Beach Comment
  CDA23617  Aster subulatus var. ligulatus A. Thomas, Mark A. Elvin 2006-9-23 609232 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  IRVC20503  Aster subulatus var. ligulatus Fred M. Roberts 1983-9-29 1137 Orange San Joaquin Freshwater Marsh, 1.9km NNW UCI campus center, Irvine 2 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
  IRVC19366  Astragalus didymocarpus var. didymocarpus R. L. Allen 1975-4-20 Orange San Juan Creek bed, 1.4km N La Novia Bridge, 15km W waters edge. San Juan Capistrano Comment
  UCR12616  Astragalus trichopodus subsp. leucopsis R. G. Sullivan 1972-4-16 720416- 8 Orange Santa Ana River Channel, river bottom near Coal Canyon Road 122 Comment
  RSA2069  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA2991  Astragalus trichopodus var. lonchus C. B. Wolf 1931-3-3 s.n Orange Botany garden. (RSA?) Comment
  UCD105450  Astragalus trichopodus var. lonchus J. E. Eckert 1945-6-28 s.n. Orange location unknown. Comment
  CAS-BOT-BC200841  Astragalus trichopodus var. trichopodus John Thomas Howell 1927-6-2 2415 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA725806  Atriplex T. B. Salvato, Mitch Provance, Katie Kurtz 2006-10-15 1906 Orange South Coast: Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive. 6 Comment
  UC1980275  Atriplex R. E. Riefner Jr. 2006-11-15 06 -678 Orange City of Newport Beach, Bristol St. at Jamboree Rd. Comment
  SBBG133594  Atriplex amnicola R. E. Riefner Jr. 2006-5-7 06 -178 Orange N end of City of San Clemente, along I-5 Freeway, N side, immediately S of Camino de Estrella exit ramp 66 Comment
  UCR203904  Atriplex amnicola R. E. Riefner Jr. 2008-5-25 08- 118 Orange South Coast, San Clemente, vicinity of Camino de Los Mares and Calle Nuevo 45 Comment
  RSA743668  Atriplex amnicola R. E. Riefner 2007-8-4 7 -344 Orange City of San Juan Capistrano, San Juan Creek, ca. 0.2 mi W of intersection of Paseo Tirador and Calle Arroyo St. 31 Comment
  SBBG122001  Atriplex amnicola R. E. Riefner 2006-4-17 06 -155 Orange near Bayview Way and Bayview Place, upper Newport Bay 6 Comment
Read comments
Dec 13 2012
  RSA452403  Atriplex californica Albert J. Perkins 1923-05 s.n. Orange Laguna heights Comment
  RSA65401  Atriplex californica F. W. Peirson 1923-3-25 3414 Orange Aliso Creek, near Laguna Beach. Comment
  RSA747714  Atriplex californica Fred M. Roberts 2008-7-10 7073 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  UC450972  Atriplex californica F. A. MacF. 1931-3-1 2927 Orange Laguna Beach Laguna Beach (crevices of sea cliffs) Comment
  POM201811  Atriplex canescens L. M. Booth 1932-7-1 1249 Orange Newport Lagoon. Comment
  POM201812  Atriplex canescens L. M. Booth 1932-7-23 1301 Orange Corona del Mar, Newport Beach Comment
  POM637  Atriplex canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach. 6 Comment
  RSA5333  Atriplex canescens B. D. Stark 1933-1-3 1731 Orange Rancho Santa Ana near pear orchard. 122 Comment
  RSA65358  Atriplex canescens F. W. Peirson 1924-8-29 4528 Orange Corona Del Mar Comment
  SD144473  Atriplex canescens var. canescens B. Pitzer 1996-4-30 2789 Orange Crystal Cove State Park, S of City of Irvine on Hwy 1 (Pacific Coast Hwy). Comment
  UCR37775  Atriplex coulteri 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
  RSA731965  Atriplex glauca A. Sanders 2008-4-29 35139 Orange Lomas de Santiago, western end of Loma Ridge on road to sheriff s training facility, c. 1.5mi SW of Santiago Reservoir. 335 Comment
  SD220050  Atriplex lentiformis Mark A. Elvin 2004-5-2 3423 Orange Irvine: SanJoaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW 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
  RSA18531  Atriplex lentiformis subsp. breweri C. B. Wolf 1927-7-23 667 Orange Along the coast just north of San Clemente. Comment
  CLARK-A1528-1186  Atriplex leucophylla John C. Roos 1949-10-1 4677 Orange Doheney Beach Comment
  JEPS59595  Atriplex leucophylla L. M. Booth 1932-8-5 1347 Orange Newport Bay Comment
  UC2030077  Atriplex leucophylla Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  POM641  Atriplex leucophylla D. L. Crawford 1925-07 s.n. Orange Beach Comment
  RSA5446  Atriplex parryi C. B. Wolf 1932-8-11 s.n. Orange About 2 blocks west of center of town of Lancaster. Antelope Valley, Mojave Desert. 718 Comment
Read comments
Oct 29 2013
  RSA700319  Atriplex rhagodioides Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon 30 Comment
  UCR141335  Atriplex rhagodioides Robert DeRuff 1987-5-2 369 Orange Southern Coast, Newport Beach, Newport Back Bay, Big Canyon 8 Comment
  UCSB52445  Atriplex rosea Ferren, Wayne; Roberts, Jr., Fred 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., parking lot at mouth of Big Canyon; 2.6 km. ENE Newport Harbor High School Comment
  RSA743498  Atriplex semibaccata Fred M. Roberts 2008-7-10 7070 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 Comment
  SD253974  Atriplex semibaccata Jim Riley 2013-10-15 121 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UCR152758  Atriplex semibaccata D. E. Bramlet, K. Peterson 2003-3-19 3346 A Orange South Coast, bluffs below the Ritz-Carlton, upper Salt Creek, Salt Creek Beach Park Comment
  POM201895  Atriplex serenana L. M. Booth 1932-7-1 1248 Orange Newport Lagoon. Comment
  RSA250  Atriplex serenana J. T. Howell 1927-7-5 265 Orange West side, Rancho Santa Ana [Botanic Garden]. 152 Comment
  RSA5868  Atriplex serenana C. B. Wolf 1932-9-13 4018 Orange Bryant Ranch. 3/10 miles W of Los Alamitos Blvd.700 ft. south of Bryant Ave., (800 ft. east & 700 ft. south of NW corner of SW 1/4 sec. 30 T4S R11W) 7 Comment
  RSA48695A  Atriplex subspicata I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA411865  Atriplex truncata Gertrude Dunn 1930-8-9 s.n. Orange Vacant lot 1/2 mi. east of Huntington Beach. Comment
  RSA65356  Atriplex truncata F. W. Peirson 1924-8-29 5073 Orange 4 miles south of Santa Ana. Comment
  HSC24443  Atriplex watsonii Christopher Davidson 1970-7-27 1502 Orange Bolsa Chica salt marsh, 1 mi. S of Warner Ave., opposite Seal Beach Comment
  JEPS59574  Atriplex watsonii L. M. Booth 1932-7-21 1299 Orange Anaheim Creek Comment
  RSA234520  Atriplex watsonii James Henrickson 1970-7-25 5033 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along Pacific Coast Hwy. 0 Comment
  RSA453967  Atriplex watsonii F. R. Fosberg 1930-7-10 S 3188 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  UCR14058B  Atriplex watsonii Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCR102010  Avena fatua B. G. Pitzer 1997-3-25 3003 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR193069  Avena fatua A. C. Sanders, T. B. Salvato 2008-5-13 35336 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
  UCSB47968  Avena fatua Roberts, Fred 1980-3-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 Comment
  RSA696691  Avena sativa Keith E. Hoffmaster 1927-5-5 s.n. Orange Santa Ana. Comment
  IRVC15200  Baccharis douglasii Karlin G. Marsh 1977-9-16 Orange Huntington Beach: Huntington Cental Park, Shipley Nature Center southern coastal Comment
  CDA10367  Baccharis emoryi Hill, Lee 1951-9-9 B 51632 Orange Santa Fe Railroad tracks, near Red Hill Avenue, Santa Ana. 0 Comment
  POM201806  Baccharis emoryi L. M. Booth s.n. Orange Newport Beach Comment
  RSA232226  Baccharis emoryi James Henrickson 1970-10-3 5361 Orange 2 miles NW of Huntington Beach, common along raised roadsides in southern open portion of Bolsa Chica Salt Marsh. 0 Comment
  RSA542423  Baccharis emoryi Robb Hamilton 1989-7-31 2 Orange Newport Beach: just W of Newprot Blvd, along Pacific Coast Hwy 5m 5 Comment
  UCSB48035  Baccharis glutinosa 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
  UCR205871  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08- 241 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 600 Comment
  UCR205872  Baccharis malibuensis R. E. Riefner Jr. 2008-7-17 08- 239 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Road 574 Comment
  RSA0008327  Baccharis malibuensis R. E. Riefner Jr. 2008-6-25 08 -175 Orange Santa Ana Mts., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, Black Star SCE Rd. 483 Comment
  CAS-BOT-BC99441  Baccharis pilularis Carl B. Wolf 1934-12-26 6262 Orange south end of town of San Clemente 15 Comment
  RSA549989  Baccharis pilularis Scott D. White 1992-9-23 84 Orange Vicinity of Olinda, near city of Brea, immediately N of Carbon Cyn Rd & E of Placentia Ave.; ca. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  UC532156  Baccharis pilularis Carl B. Wolf 1934-12-26 2310 Orange s end of town of San Clemente 15 Comment
  UCR207595  Baccharis pilularis O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  LA203035  Baccharis pilularis subsp. consanguinea C. B. Wolf; 1934-12-26 6262 Orange S-end of town of San Clemente 15 Comment
  CAS-BOT-BC106730  Baccharis salicifolia C. L. Hitchcock; C. V. Muhlick 22118 Orange 1 mi. n. of Brea, at mouth of Brea Canyon, along intermittent stream. Comment
  RSA301940  Baccharis salicifolia Jim Shevock 1970-10-19 s.n. Orange Newport Back Bay 152 Comment
  RSA685928  Baccharis salicifolia Fred M. Roberts 2003-3-27 5627 Orange Rancho Mission Viejo:Donna O'Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  CAS-BOT-BC106666  Baccharis salicina Ira L. Wiggins 1965-11-6 20338 Orange Kraemer Oil Estates, near well No. 14, near end of county road constituted by continuation of Orangethorpe Avenue Comment
  JEPS19426  Baccharis salicina Peter H. Raven 1957-9-28 11382 Orange at n limits of Surfside Comment
  UC536888  Baccharis salicina L. M. Booth Orange Newport Beach Comment
  UCR266666  Bacopa monnieri Fred M. Roberts, Sandra L. Leatherman 2008-9-3 7090 Orange YORBA LINDA: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave 113 Comment
  RSA615541  Bahiopsis laciniata Fred M. Roberts 1997-10-28 5052 Orange Lomas de Santiago: mouth of Silverado Canyon, along Black Star Canyon Road, 0.1 km N jct. Silverado Canyon rd., 4.8 km NNW Bolero Lookout. 305 Comment
  SBBG47293  Bassia hyssopifolia R. N. Philbrick 1973-8-31 Orange marsh just E of University of California, Irvine Comment
  SD146318  Bassia hyssopifolia R. D. Goeden, D. W. Ricker 1965-7-7 Orange Tustin township, near Peters Canyon, Channel, east of Santa Ana Marine Corps Air Station. 60 Comment
  UCD97659  Bassia hyssopifolia Ira L. Wiggins 1966-4-22 20616 Orange On eroded roadway leading to oilwell, W side of Associated Road, between Yorba Linda Boulevard and Imperial Highway. Comment
  SFV20021  Batis maritima A. Dittmer, S. Dark 2004-10-3 76 Orange Bolsa Chica wetlands. South side of public parking lot off Highway 1. Comment
  POM17841  Bebbia juncea Philip A. Munz 1923-9-7 7771 Orange Mouth of Trabuco Canyon 305 Comment
  UCR240088  Bebbia juncea Dick Newell, Don Millar 2012-10-2 303 Orange Peninsular Range; Santa Ana Mtns., Blackstar Cyn at Santiago Creek, 0.35 mi. SW of Baker Canyon Rd. 288 Comment
  UCR38073  Bebbia juncea G. Sampson 1985-5-7 85- 387 Orange Chino Hills State Park, abandoned corral site at the west end of Telegraph Canyon Comment
  CAS-BOT-BC106425  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 2295 Orange North of Pear Orchard, Rancho Santa ana, Santa Ana Can. 121 Comment
  UCR182888  Bidens laevis Pat Akers 2006-3-25 PA2 06 Orange Yorba Linda, N edge of Santa Ana River. south of La Palma Dr., 0.5-0.8 mi. east of Yorba Linda Dr 122 Comment
  IRVC19421  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC19422  Bidens pilosa R. L. Allen 1983-2-12 A630 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  IRVC20225  Bidens pilosa Fred M. Roberts, K. G. Marsh 1982-10-18 834 Orange Temple Hill, east margin of Top of the World School, Laguna Beach 295 Comment
  UCR192225  Bloomeria crocea A. C. Sanders, Fred M. Roberts 2008-5-6 35266 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
  RSA698737  Bloomeria crocea L. C. Hall 1934-4-1 s.n. Orange Panerama Heights Comment
  SD247271  Bloomeria crocea var. crocea R. E. Riefner Jr. 2014-5-13 14 120 Orange City of San Clemente, Rancho San Clemente Trail, E ca. 0.15 mi from Ave Salvador and S cal. 0.1 mi off Utility Access Road. 238 Comment
  CAS-BOT-BC434510  Boerhavia diffusa E. Dudley 1939-8-24 s.n. Orange Unspecified Comment
  CAS-BOT-BC31017  Bolboschoenus maritimus Helen D. Geis 1902-3-1 s.n. Orange Peat Lands Comment
  UCSB52906  Bolboschoenus maritimus Roberts, Fred 1984-8-6 Orange Irvine: UC Irvine, along Abode Circle Road; 0.9 km. ENE campus center; 2.3 km. W French Hill 30 Comment
  UCSB57131  Bolboschoenus maritimus 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
  RSA0059072  Bolboschoenus robustus CNPS Accuracy Assessment Team 2014-7-7 9342 .1 Orange San Joaquin Freshwater Marsh Reserve. Comment
  UCD140049  Bolboschoenus robustus Louis C. Wheeler 1932-6-25 870 Orange inland arm of Newport Bay. Comment
  UCR151112  Bothriochloa barbinodis Scott D. White, Pam DeVries 1998-12-10 7203 Orange Santa Ana Mtns foothills, Brea: Tonner Canyon and adjacent slope, just east of Hwy 57 crossing 198 Comment
  JEPS16061  Bowlesia incana Alice King Apr., 1908 Orange near Anaheim (Santa Ana River); Santa Ana River Comment
  RSA60252  Bowlesia incana E. K. Balls 1950-3-7 14446 Orange Rancho Santa Aa Botanic Garden. 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
  CAS-BOT-BC420395  Boykinia rotundifolia R. J. Smith 1903-6-1 79 Orange Mill Creek and Santa Ana River 914 Comment
  UCR149498  Brachypodium distachyon Scott D. White, Michael Honer 2004-5-17 10385 Orange South Coast, City of Laguna Niguel. Ridges and open slopes directly N of the intersection of Crown Valley Parkway and Pacific Island Dr 183 Comment
  UCR158030  Brachypodium distachyon Adrian Wolf 1998-5-15 286 Orange South Coast, Dana Point Headlands, north of Scenic Dr. 67 Comment
  UCR186136  Brassica geniculata T. B. Salvato, Katie Kurtz 2006-10-15 1921 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CAS-BOT-BC30256  Brassica nigra Alice Eastwood 1934-4-29 s.n. Orange Rancho Santa Ana. Comment
  IRVC1047  Brassica nigra S. Gilbert 1965-4-13 Orange 2472 Elden. Costa Mesa Comment
  IRVC1050  Brassica nigra L. McCabe 1965-4-21 Orange Corona del Mar. Newport Beach Comment
  IRVC20785  Brassica nigra Fred M. Roberts, S. L. Fritzke 1982-4-2 468a,b,c Orange hills, 3.5km ESE Aliso Peak; 3.2km ESE Alicia Fire Station, N of Del Avion, Laguna Niguel 100 Comment
  RSA0066349  Brassica nigra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34626 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  UCR231158  Brassica nigra Dick Newell, Don Millar, Shara Harris 2011-6-21 189 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  SEINET7907478  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  RSA561494  Brickellia nevinii Steve Boyd, K. A. Boyd 1992-7-9 7656 Orange Northern Santa Ana Mountains, Upper Tin Mine Canyon along Skyline Road, 1 mile below jct with Main Divide Road Comment
  RSA587119  Brodiaea jolonensis R. E. Riefner 1994-6-15 94 -253 Orange South bluffs, San Clemente State Beach. Comment
  CAS-BOT-BC144299  Bromus arizonicus Ira L. Wiggins 1966-4-22 20617 Orange Shoulder of pavement along Associated Road between Yorba Linda Boulevard and Imperial Highway. 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
  CAS-BOT-BC156206  Bromus catharticus Ira L. Wiggins 1965-9-26 20264 Orange Along Orangethorpe Avenue near Atwood. Comment
  CAS-BOT-BC156002  Bromus diandrus John Thomas Howell 1927-6-9 2466 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  LA35610  Bromus diandrus A. K. Khudairi; 1951-5-20 sn Orange Westminster Comment
  RSA732241  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Penisular Range; 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 mi. WSW of Silverado 493 Comment
  UC1131180  Bromus diandrus A. Lewis Apr 1934 393 Orange San Joaquin Hills 60 Comment
  RSA0035210  Bromus diandrus Sandy Gray 1981-04 2 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  RSA385398  Bromus diandrus Barbara Hutchison 1941-5-3 s.n. Orange Los Angeles. Comment
Read comments
Oct 15 2013
  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
  IRVC27728  Bromus hordeaceus Mark A. Elvin 2004-5-2 3408 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA732235  Bromus hordeaceus A. C. Sanders, Fred M. Roberts 2008-4-22 35041 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
  UCR2233  Bromus hordeaceus F. M. Reed 1928-5-10 5884 Orange Laguna Canyon below lakes 91 Comment
  RSA696620  Bromus hordeaceus Keith E. Hoffmaster 1935-3-17 s.n. Orange Near El Toro (Trabuco rd.) Comment
  RSA708447  Bromus hordeaceus Mark Elvin 2004-5-2 3408 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
  SEINET179447 Image available Bromus hordeaceus subsp. hordeaceus Lawrence M. Booth 1932-5-12 1023 Orange Newport Bay Comment
  UCR166791  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 05- 702 Orange City of Costa Mesa, South Coast Drive at Susan Road 16 Comment
  UCR193601  Bromus madritensis A. C. Sanders, Fred M. Roberts 2008-5-6 35235 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
  RSA735970  Bromus madritensis subsp. madritensis Scott D. White, Justin M. Wood 2008-4-21 11903 Orange Chino Hills State Park, N of 91 freeway, above Yorba Linda. 366 Comment
  UCSB47581  Bromus madritensis subsp. rubens Roberts, Fred 1980-4-3 Orange Along Hwy 74, 0.2 km SW of Orange-Riverside Co. line, 0.4 km NNE Lower San Juan Picnic Ground, San Juan Cyn; Santa Ana Mtns 128 Comment
  RSA542559  Bromus pseudolaevipes Karlin G. Marsh 1989-6-23 s.n. Orange Santa Ana Mountains: Laurel Springs, Harding Truck Trail., UTM 3730550m N, 446250m E 1036 Comment
  UCD59517  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. Comment
  UCR217282  Bromus rubens Mark A. Elvin 2003-3-30 2392 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA590951  Bromus rubens Fred M. Roberts 1991-5-2 4775 Orange San Joaqui Hills, Laguna Canyon, Laguna Laurel, Just W of Laguna Canyon Road, 2km N jct El Toro Road, 4.5km E Signal Peak., UTM Z113718000mN, 4 29 200m E 110 Comment
  RSA650420  Bromus rubens Howard Cook 1948-4-15 13 Orange Collected on highway 14, about 8 miles east of Fullerton. 91 Comment
  RSA696330  Bromus rubens Keith E. Hoffmaster 1928-4-25 s.n. Orange Santa Ana Comment
  CHSC90613  Cakile maritima Sean P. Gallagher 1988-4-2 6 Orange Bolsa Chica State Beach 1 mi s of Warner Ave. 0 Comment
  CLARK-A1528-915  Cakile maritima Patricia A. Andrews 1975-6-26 5905 Orange Capistrano Bay Beach 9 Comment
  RSA732277  Calandrinia ciliata A. C. Sanders, Fred M. Roberts 2008-4-22 35043 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
  UC1377843  Calandrinia ciliata John Ingram 1960-3-29 260 Orange on roadsides 3 mi above O'Neill Park; Trabuco Canyon Comment
  CAS-BOT-BC438320  Calandrinia ciliata Ira L. Wiggins 1966-3-5 20508 Orange Along Highway S-18, about 4.5 mi. E. of Laguna Beach. 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
  RSA739270  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 7 -163 Orange City of Laguna Niguel, Oso Creek, ca. 1.5 miles north from Paseo De Colinas Street on Camino Capistrano Street. 88 Comment
  RSA594817  Calochortus albus Fred M. Roberts, Sandy Leatherman, Brian Leatherman 1994-4-24 4911 Orange Santa Ana Mountains: San Juan Canyon, CA route 74, Lower San Juan Picnic Ground. 354 Comment
  CAS-BOT-BC132257  Calochortus catalinae Philip A. Munz 1949-5-26 13379 Orange Head of Sierra Canyon, Santa Ana Mts. 731 Comment
  CSUSB396  Calochortus catalinae Dave Cerf 1971-4-17 Orange Orange Park Acres; on Windes Drive 0.5 mile southwest end of road. 243 Comment
  POM13942  Calochortus catalinae William M. Pierce 1922-4-11 s.n. Orange Santa Ana Mountians, Santa Ana Canyon. Comment
  RSA443846  Calochortus catalinae Gordon Marsh, K. G. Marsh 1978-3-30 s.n. Orange Santa Ana Mountains: Ortega Highway, E of Highway Marker #67 before San Juan Creek Bridge. Comment
  RSA649054  Calochortus catalinae D. E. Bramlet 2000-4-12 2977 Orange Fremont Canyon near Edison transmission lines. The site is 92m east of the Edison Spur Road and 762m southeast of the Fremont ridge road. The locality is 335m west of Fremont Canyon. 138 Comment
  RSA753423  Calochortus catalinae D. E. Bramlet 2008-5-20 4279 Orange N Loma Ridge, 30m east of the access road, 762m west of Hwy 241 & 1.13km south of Santiago Cyn Road. 344 Comment
  UCR209385  Calochortus catalinae Fred M. Roberts 2008-3-25 6791 Orange Loma Ridge, Upper Hicks Canyon near Haul Road, c. 4.4 km by road from Portola Parkway, and 3.2 km east northeast Rattlesnake Canyon Reservoir 269 Comment
  CAS-BOT-BC483374  Calochortus invenustus Le Roy Abrams 1901-6-15 1848 Orange Summit of Santiago Pk. Comment
  RSA649687  Calochortus plummerae R. E. Riefner 2000-6-27 20 -585 Orange NCCP North Ranch Policy Plan Area. E of Main Divide Road and SE from Windy Ridge cypress forest. 556 Comment
  CSUSB398  Calochortus splendens Richard G. Sullivan 1972-4-22 720422 7 Orange Laguna Hills Laguna Hills Comment
  RSA627760  Calochortus splendens Scott D. White 1998-3-24 6233 Orange University of California, Irvine Campus: Site of proposed Research Park, Southwest of main campus circle, ca. halfway between Beerkeley Avenue and new freeway (Bonita Canyon). 24 Comment
  CAS-BOT-BC492705  Calochortus splendens Palmer Stockwell 1935-5-12 1216 Orange 7 miles E of Mission San Juan, Capistrano, on Elsinore Road Comment
  RSA0055000  Calochortus splendens Jim Shevock 1970-4-25 153 Orange Near Irvine Lake. 304 Comment
  RSA132250  Calochortus splendens Gale Sphon 1959-5-2 325 Orange Between Upper and Lower San Juan Camps, Cleveland National Forest. Comment
  RSA369038  Calochortus splendens N. C. Cooper 1944-6-4 1316 Orange Elsinore Mountain. 1067 Comment
  RSA0042761  Calochortus weedii J. Vlahos 1934-6-2 s.n. Orange Hills around Orange Co. Park. Comment
  RSA663277  Calochortus weedii var. intermedius R. E. Riefner 2000-6-26 20 -581 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N from Baker Canyon Road. 305 Comment
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Apr 19 2016
  RSA690980  Calochortus weedii var. intermedius Scott D. White, Michael Honer 2003-5-29 9429 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
  RSA749645  Calochortus weedii var. intermedius D. E. Bramlet 2008-6-5 4290 Orange Santa Ana Mtns foothills: Tributary to Weir Cyn., 731 m N of the SCE Transmission Line & 229m west of Weir Canyon Road. 257 Comment
  SD112776  Calochortus weedii var. intermedius Darley F. Howe 1967-5-30 4361 Orange Near mouth of Aliso Canyon, dry hillside. Comment
  UCR208444  Calochortus weedii var. intermedius R. E. Riefner Jr. 2008-6-5 08- 146 Orange South Coast, near city of Orange, west side of Hicks Haul Road, Rattlesnake Canyon southwest of the asphalt plant; Irvine Ranch Reserve, Management Area 6 Comment
  UCR222644  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Peninsular Range; Santa Ana Mtns. Foothills, ridgeline between the upper two tributaries of Wier Canyon, 1.2 km east of S Serrano Ave. and 1.3 km west of Gypsum Cyn 330 Comment
  UCR230826  Calochortus weedii var. intermedius Dick Newell, Don Millar, Shara Harris 2011-6-21 187 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agua Chinon Wash 225 Comment
  UCR132888  Calochortus weedii var. weedii Adrian Wolf 2000-6-20 464 Orange Santa Ana Mtns., North Ranch Policy Plan Area, 0.62 km NNW of mouth of Black Star Canyon 305 Comment
  RSA696923  Calycadenia tenella Minor Warne 1934-4-21 s.n. Orange Limestone Canyon. Comment
  RSA733841  Calycadenia tenella A. C. Sanders 2008-4-29 35130 Orange 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
  UCR215290  Calyptridium monandrum Fred M. Roberts, D. E. Bramlet 2008-5-13 6954 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  CHSC70486  Calystegia macrostegia R. A. Schlising 1973-6-25 3104 Orange SW of Corona; along dead-end road 2.1 mi SW of junction with Hwy 71. Comment
  RSA747592  Calystegia macrostegia Fred M. Roberts 2000-5-5 5320 Orange Lomas de Santiago: Loma Ridge, Agua Chinon Cyn., north slope, 1.6 kmSSW Bolero Spr. and 2.6 km W Bolero Lookout. 308 Comment
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 Comment
  UCR131876  Calystegia macrostegia J. Mallory, V. McCoy 1995-7-3 6454- 129 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  UCR16115  Calystegia macrostegia S. Riddell 1973-5-17 730517- 22 Orange Hwy S-18, 10 mi east of Interstate Hwy 5 91 Comment
  UCR192473  Calystegia macrostegia A. C. Sanders, Fred M. Roberts 2008-3-25 34541 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CSUSB664  Calystegia macrostegia Dean Jones 1966-4-12 Orange Imperial Highway, about 1.5 miles north of Riverside Freeway [91]. 335 Comment
  RSA710302  Calystegia macrostegia subsp. arida R. K. Brummitt 1998-5-23 19994 Orange 17 km NE of San Juan Capistrano on Rte. 74. 200 Comment
  UCR239621  Calystegia macrostegia subsp. cyclostegia Fred M. Roberts 2012-4-24 7499 Orange San Joaquin Hills, Buck Gully, west of intersection of Ridge Park Road and Newport Coast Drive, 1.5 km west of Signal Peak 179 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
  CAS-BOT-BC221305  Calystegia macrostegia subsp. intermedia C. B. Wolf 1932-3-6 1865 Orange 2 miles from Orange County Park on road to Anaheim 152 Comment
  JEPS31649  Calystegia macrostegia subsp. intermedia L. M. Booth 1932-5-19 Orange Newport Bay Comment
  RSA647894  Calystegia macrostegia subsp. intermedia Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 23 Orange 1/2 mile south of Chino Hills State Park. By a seasonal tributary to the Santa Ana River. 167 Comment
  RSA697157  Calystegia occidentalis subsp. occidentalis R. H. McArthur 1934-4-14 s.n. Orange Laguna Canyon. Hillside. Comment
  JEPS47844  Calystegia sepium subsp. binghamiae Frank W. Peirson 1926-9-26 7086 Orange Wintersberg. Comment
  POM201638  Calystegia sepium subsp. limnophila L. M. Booth 1932-7-19 1279 Orange Bolsa Chica Comment
  RSA113268  Calystegia soldanella E. K. Balls 1955-4-4 20420 Orange Coastal Strand, mouth of Santa Ana River, W bank, Hwy 101. 3 Comment
  UCR241074  Calystegia soldanella Dick Newell 2013-4-18 326 Orange South Coast, Bolsa Chica State Beach in Huntington Beach, on beach near Pacific Coast Hwy, 0.15 mi. west of Sea Point St., along bike path 5 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
  RSA49672  Camissonia bistorta L. R. Abrams 1901-6-15 1793 Orange Santiago Peak trail. Comment
  RSA134574  Camissonia californica Harlan Lewis, M. Lewis 1957-5-19 1001 Orange Cleveland National Forest. Ortega Highway at western boundary of Forest. Comment
  UCR222623  Camissonia cheiranthifolia T. B. Salvato 2010-10-27 5108 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  POM201888  Camissonia cheiranthifolia subsp. suffruticosa L. M. Booth 1932-5-25 1114 Orange Balboa Island, Newport Bay. Comment
  POM3332  Camissonia cheiranthifolia subsp. suffruticosa D. L. Crawford 1916-7-28 s.n. Orange Laguna Beach Region, Abalone Pt. Comment
  RSA13899  Camissonia cheiranthifolia subsp. suffruticosa Dorothy R. Wolf 1934-4-29 s.n. Orange Corona del Mar (Newport Bay) Comment
  RSA585053  Camissonia cheiranthifolia subsp. suffruticosa D. Atwood 1993-3-28 17712 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. 0 Comment
  SDSU3348  Camissonia confusa H. Wedberg 1958-3-29 183 Orange In grassy patch under Quersus agrifolia, across stream from Lower San Juan Campground (Hwy 74). Comment
  UCR191424  Camissonia hirtella A. C. Sanders, Fred M. Roberts 2008-4-8 34775 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
  POM21182  Camissonia intermedia Helen D. Geis 1902-03 s.n. Orange Santiago Creek bed. Comment
  SBBG40397  Camissoniopsis bistorta J. Ingram 1960-3-14 244 Orange La Palma Ave, ca. 2 blocks E of Knotts Berry Farm, Buena Park Comment
  UCSB14793  Camissoniopsis bistorta Breedlove, Dennis 1962-3-9 Orange 6.4 miles east of San Juan Capistrano on State 74 121 Comment
  CAS-BOT-BC160447  Camissoniopsis cheiranthifolia subsp. suffruticosa L. R. Abrams 1917-6-23 6576 Orange Balboa Comment
  UCR191439  Capsella bursa-pastoris A. C. Sanders, Fred M. Roberts 2008-4-8 34721 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA0054945  Capsella bursa-pastoris Keith E. Hoffmaster 1927-2-12 395 Orange Santa Ana. Comment
  CAS-BOT-BC37596  Cardamine californica Reed Clark Rollins; Kathryn W. Rollins 1985-3-18 8503 Orange 16 miles east of San Juan Capistrano off state route 74. Comment
  LA204281  Cardamine californica C. B. Wolf; 1931-1-30 1826 Orange Santa Ana Mountains, Claymine Canyon 304 Comment
  OBI6110  Cardamine californica Carl B. Wolf 1931-1-30 1826 Orange Claymine Cyn, Santa Ana mts 305 Comment
  POM188931  Cardamine californica var. integrifolia Marcus E. Jones 1931-3-23 s.n. Orange Laguna. Comment
  RSA1442  Cardamine californica var. integrifolia J. T. Howell 1929-2-11 1226 Orange Claymine Canyon, Samta Ana Mts. 305 Comment
  POM187377  Cardaria pubescens Ed Johnson s.n. Orange Westminster. Comment
  CAS-BOT-BC384760  Cardionema ramosissimum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA747710  Cardionema ramosissimum Fred M. Roberts 2008-4-16 6913 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8 km W Marine Institute, Dana Point Harbor. 60 Comment
  SD227731  Carduus pycnocephalus Scott D. White, Brian Leatherman 1997-6-12 5330 Orange Santa Ana Mtn. foothills. East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca. 2 to 4 I E of I-15 / Hwy 74 jtn. 45 Comment
  UCR137449  Carduus pycnocephalus Scott D. White, Brian Leatherman 1997-6-12 5330 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
  UCR210292  Carex A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37193 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  SBBG52701  Carex globosa C. Davidson 1977-5-18 5621 Orange Bear Springs, Santa Ana Mtns 1219 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-BC118500  Carex praegracilis Helen D. Geis 1902-4-1 506 Orange Santa Ana Comment
  RSA0127609  Carex praegracilis Fred M. Roberts 2016-4-26 8040 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
  UC212128  Carex praegracilis I. M. Johnston 1918-5-5 1890 Orange El Toro 76 Comment
  UC971745  Carex praegracilis L. M. Booth 1932-7-1 1234 Orange Anaheim Creek Comment
  UCR242118  Carex praegracilis D. E. Bramlet 1983-5-14 1377 Orange Peninsular Range, Santa Ana Mountains, Chiquito Basin 884 Comment
  CAS-BOT-BC118488  Carex praegracilis Helen D. Geis 1902-4-1 s.n. Orange Peat Lands Comment
  UCSB57548  Carex schottii Roberts, Fred 1984-3-24 Orange Santa Ana Mtns.: San Juan Canyon, Hwy. 74; 2.4 km. ENE San Juan Guard Station; 0.3 km. W Bench Mark 1100 315 Comment
  RSA0031762  Carex spissa Robert F. Thorne 1977-11-21 50812 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA678506  Carpobrotus edulis Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1105 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  CDA6922  Carthamus creticus E. Dudley 1957-6-17 Orange 0 Comment
  RSA707  Castilleja affinis J. T. Howell 1927-6-2 11 Orange Sandstone Ridge, Botany Garden, RSA. 152 Comment
  JEPS57262  Castilleja affinis subsp. affinis L. R. Heckard and R. C. Bacigalupi 1968-5-8 1834 Orange ca 7.5 mi ne San Juan Capistrano (along San Juna Valley road) 30 Comment
  UC1012124  Castilleja affinis subsp. affinis F. W. Pennell and Carl Epling 1940-4-21 25149 Orange 5 mi e San Luis Capistrano (Route 74) 60 Comment
  CDA41345  Castilleja affinis subsp. affinis Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  JEPS21373  Castilleja applegatei subsp. martinii Milo S. Baker 1938-5-17 13296 Orange Santa Ana Mts. Comment
  RSA698982  Castilleja douglasii Stephen Bruff s.n. Orange Lemon Hights. Comment
  UC511102  Castilleja exserta Lyman Benson 1932-3-26 3191 Orange Dana Point 60 Comment
  RSA400601  Castilleja foliolosa P. A. Munz, R. D. Harwood 1920-4-24 3745 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 25 2011
  RSA524504  Castilleja foliolosa Fred M. Roberts, H. Camp 1987-3-10 3240 Orange Casper's Regional Park: San Juan Canyon, north of Hwy 74, ca. 1.9km WSW San Juan Hot Springs. 335 Comment
  RSA705  Castilleja foliolosa J. T. Howell 1928-2-25 848 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  UC1081507  Castilleja foliolosa H. L. Mason 1925-4-25 2904 Orange 5 mi s Laguna Comment
  RSA0042558  Castilleja foliolosa Paul Shirokawa 1998-4-24 4 Orange Cleveland National Forest; Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 960 Comment
  SD212727  Castilleja minor subsp. spiralis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33007 Orange Santa Ana Mountains: San Juan Canyon, from Lower San juan Picnic area to circa 1 mile downstream, parallel to Highway 74 and near Riverside County line 366 Comment
  UC537012  Castilleja minor subsp. spiralis Lawrence M. Booth 1932-6-28 1217 Orange Bolsas Marsh Comment
  RSA542652  Caulanthus heterophyllus Fred M. Roberts 1988-3-15 3857 Orange Rancho Mission Viejo; Verdugo Canyon, 1.3 km SSW Lucan Survey Marker 201 Comment
  RSA680536  Caulanthus heterophyllus Scott D. White 2003-3-21 8802 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA0121892  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4134 Orange 305m E of Upper Hicks Haul Rd, in Trib to Limestone Cyn., 1km S of Santiago Cyn. Rd. 311 Comment
  UCD114584  Caulanthus lasiophyllus D. E. Bramlet 2008-3-31 4133 Orange Santa Ana Mountains. 305 m E of Upper Hicks Haul Road, in Trib to Limestone Cyn., 1 km S of Santiago Cyn. Road. 311 Comment
  RSA542417  Ceanothus crassifolius Fred M. Roberts 1988-3-15 3854 Orange Rancho Mission Viejo: Verdugo Canyon, 0.8 km SE Lucas Survey Mark. 247 Comment
  RSA594804  Ceanothus crassifolius Fred M. Roberts 1992-2-26 4835 Orange Santa Ana Mts. Ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  RSA790452  Ceanothus crassifolius Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49698 Orange Northern Santa Ana Mountains: Sierra Peak Comment
  RSA0054817  Ceanothus crassifolius Keith E. Hoffmaster 1933-3-9 504 Orange Santa Ana mts. Comment
  CAS-BOT-BC50807  Ceanothus integerrimus P. C. Everett 1935-6-19 7236 Orange Santa Ana Mts., Trabuco Canyon, 1 mi. below summit of Truck Trail 1005 Comment
  UCR139232  Ceanothus integerrimus Percy C. Everett 1935-6-18 7214 Orange Santa Ana Mtns., summit of Santiago Peak 1732 Comment
  RSA25842  Ceanothus integerrimus var. californicus Carl B. Wolf 1941-8-15 11153 Orange w. slope Santiago Truck Trail, 1.6 mi. below mian divide motorway. 1220 Comment
  POM2821  Ceanothus integerrimus var. puberulus L. R. Abrams 1901-06 1843 Orange Mt. Santiago. Comment
  RSA798602  Ceanothus leucodermis Robert F. Thorne, E. W. Lathrop 1977-5-18 49741 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  JEPS42110  Ceanothus megacarpus John Thomas Howell 1927-6-26 2609 Orange just w Sierra Peak (head of Calymine Canyon); Santa Ana Mts. Comment
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May 8 2008
  UCSB48360  Ceanothus megacarpus var. megacarpus Roberts, Fred 1982-6-30 Orange LAGUNA NIGUEL: just N end of Pacific Island Dr., 1.6km ENE Aliso Peak 295 Comment
  UCR234152  Ceanothus oliganthus Dick Newell, Judy Booth 2012-3-30 239 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Road, Cleveland National Forest 258 Comment
  UCSB48364  Ceanothus oliganthus var. oliganthus Roberts, Fred 1982-4-18 Orange SANTA ANA MTNS.: Upper Hot Springs Cyn., 0.1km SW Falcon Group Camp; 2.0km SE Los Pinos Peak 1075 Comment
  UC1071194  Ceanothus palmeri A. Lewis Mar 1934 364 Orange head of Silverado Canyon Corona Quad., head of Silverado Canyon Comment
  CAS-BOT-BC51707  Ceanothus papillosus E. W. Lathrop 1976-11-1 7602 Orange Pleasant Peak, Main Divide truck trail, north slope 1219 Comment
  UCR158810  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  POM19055  Ceanothus papillosus var. roweanus F. W. Peirson 1923-5-6 3492 Orange Trail to Santiago Peak from Holy Jim Canyon. 991 Comment
  CAS-BOT-BC53005  Ceanothus spinosus P. C. Everett 1935-6-19 7241 Orange Santa Ana Mts., Trabuco Canyon, 1/8 mi. below (W.) Forest Service Patrol Station 487 Comment
  LA93871  Ceanothus spinosus D. S. Verity; Fred Lang 1974-2-20 sn Orange hills behind South Laguna Comment
  SD42458  Ceanothus spinosus Carl B. Wolf 1941-8-15 11151 Orange Santa Ana Mts., W. Slope Santiago Truck Trail to Santiago Pk. 1.2 mi above F. S. Gate. 609 Comment
  UC1281278  Ceanothus tomentosus H. E. McMinn 1935-6-22 3927 Orange w Covina; Santa Ana Mountains, w of Covina Comment
  SD247720  Ceanothus tomentosus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49676 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 456 Comment
  RSA5269  Ceanothus tomentosus var. olivaceus Carl B. Wolf, B. D. Stark 1932-12-19 4436 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA594879  Ceanothus tomentosus var. olivaceus Fred M. Roberts 1992-2-26 4834 Orange Santa Ana Mtns: ridge west of Black Star Canyon and north of confluence of Black Star Canyon and Santiago Canyon, 4.3 km ESE Irvine Lake spillway. 353 Comment
  RSA701801  Centaurea melitensis Fred M. Roberts, David E. Bramlet 2003-6-6 5890 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. 94 Comment
  UCR131879  Centaurea melitensis J. Mallory, V. McCoy 1995-7-3 6454- 134 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  RSA0065467  Centaurea melitensis J. Bruce Smiley 1940-5-4 s.n. Orange Santa Ana Wash. 457 Comment
  RSA5829  Centaurea melitensis C. B. Wolf 1932-6-28 3793 Orange Bryant Ranch, north boundary of field, N.E. corner of N-E 1/4 S.W. 1/4 sect 27 9 Comment
  RSA650813  Centaurea melitensis Daniel Truong 1991-5-5 4 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of ''closed area''. Comment
  RSA657738  Centaurea melitensis Ken Greby 1985-5-17 30 Orange On hillsides behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA648194  Centaurium venustum Karl Price 1988-4-19 19 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
  RSA80651  Centaurium venustum P. A. Munz, E. K. Balls 1952-8-19 17927 Orange El Cariso Camp Ground W of Ortega summit, Santa Ana Mts. Comment
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Nov 1 2013
  UC1280312  Centaurium venustum John M. Tucker 1941-5-30 259 Orange 200 yds w San Juan Guard Station (along Ortega Highway); San Juan Canyon Comment
  RSA0040038  Centranthus ruber Anonymous 1933-10-13 s.n. Orange Santa Ana. Comment
  IRVC26685  Centromadia parryi subsp. australis Mark A. Elvin 2003-8-24 3012 Orange San Joaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. Southern coastal 72 Comment
  SD134529  Centromadia parryi subsp. australis Craig Reiser 1991-3-19 Orange Newport Beach Bay, W of Delhi Channel Comment
  RSA687522  Cerastium glomeratum Fred M. Roberts 2003-3-27 5630 Orange Rancho Mission Viejo:Donna O Neill Land Conservancy, Chistianitos Canyon, along North Ride Trail, 1.37 km N Sycamore Gate, 0.36 km W Chistianitos Rd. 114 Comment
  RSA516  Ceratophyllum demersum J. T. Howell 1927-8-13 625 Orange Santa Ana River Bottom 152 Comment
  RSA156045  Cercocarpus betuloides Peter H. Raven 1962-5-18 17753 Orange [Santa Ana Mountains] Main Divide Truck Trail at saddle about 1 mile north of Santiago Peak. 1494 Comment
  RSA5338  Cercocarpus betuloides B. D. Stark 1933-1-4 s.n. Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 229 Comment
  RSA617695  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Above Modjeska Canyon: Proposed water tank site. 427 Comment
  UCR100180  Cercocarpus betuloides Scott D. White 1996-12-20 4637 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  UCR192118  Cercocarpus betuloides A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35304 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  UCR231186  Cercocarpus betuloides A. C. Sanders, T. B. Salvato, Kent Beaman 2011-11-3 39938 Orange Peninsular Range; Santa Ana Mtns., near Pleasants Peak along the Main Divide Truck Trail 1125 Comment
  UCR98300  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  SBBG2894  Cercocarpus betuloides var. betuloides H. and M. Dearing 1937-3-12 Orange Santa Ana Cyn Comment
  UCR99869  Cercocarpus minutiflorus Scott D. White 1996-12-20 4638 Orange Santa Ana Mountains, above Modjeska Canyon; proposed water tank site 488 Comment
  CAS-BOT-BC279502  Chaenactis artemisiifolia John Thomas Howell 1927-6-5 2433 Orange Southern Puente Hills in the Santa Ana Canon [Canyon] 152 Comment
  RSA443833  Chaenactis artemisiifolia Gordon Marsh 1978-5-27 s.n. Orange Silverado Canyon. Silverado Canyon Rd, 0.4 mi. E of Post Office at bridge corssing Comment
  RSA648190  Chaenactis artemisiifolia Karl Price 1988-5-7 37 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
  RSA810  Chaenactis artemisiifolia J. T. Howell 1927-6-5 36 Orange just to E of Rancho Santa Ana 152 Comment
  UCR192486  Chaenactis glabriuscula A. C. Sanders, Fred M. Roberts 2008-3-25 34513 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA638968  Chaenactis glabriuscula var. glabriuscula Valerie L. Soza, LeRoy Gross 1999-6-8 499 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  CAS-BOT-BC284203  Chaenactis glabriuscula var. lanosa P. C. Everett 1935-5-17 6865 Orange 7/8 mi. E. of Atwood, S. side of Santa Fe railroad tracks 152 Comment
  POM6049  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange Buena Park Comment
  RSA794564  Chamaecytisus prolifer Justin M. Wood 2010-3-31 1452 Orange Santa Ana Canyon: Chino Hills State Park property just west of Green River Golf Course on bluff south of the river. 131 Comment
  RSA734739  Chamaesyce albomarginata L. C. Wheeler 1946-8-8 6225 Orange Imperial Highway 1/4 mi. west of Caroline Ave, 2 mi. east southeast of Brea. Comment
  RSA434  Chamaesyce maculata J. T. Howell 1927-6-21 177 Orange Near ranch houses, Rancho Santa Ana. 152 Comment
  POM212354  Chamaesyce polycarpa var. polycarpa C. B. Wolf 1931-3-6 s.n. Orange Trabuco Canyon, 1.5 mile below Trabuco Camp Grounds 549 Comment
  RSA562820  Chamaesyce polycarpa var. polycarpa Steve Boyd 1992-5-20 7473 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
  IRVC848  Chamomilla suaveolens L. Stilgenbauer 1965-3-21 Orange Corona del Mar Highschool. Newport Beach Comment
  RSA685788  Cheilanthes J. F. James 1879-4-11 212 Orange San Juan Capistrano Comment
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Nov 22 2013
  UCSB52864  Cheilanthes clevelandii 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 Campground 800 Comment
  UC1543076  Chenopodium Donald G. Nelson 1936-5-29 428 Orange S. Grand Ave. s Buena Park; Bob Barnes Ranch Comment
  IRVC21772  Chenopodium ambrosioides Fred M. Roberts 1984-11-27 1440 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  UCR197684  Chenopodium ambrosioides A. C. Sanders, Fred M. Roberts 2008-9-18 36062 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  POM201964  Chenopodium ambrosioides L. M. Booth 1932-7-25 1312 Orange Santa Ana River, 1 1/2 miles from ocean. Comment
  RSA696276  Chenopodium ambrosioides Keith E. Hoffmaster 1934-7-3 s.n. Orange near Costa Mesa Comment
  RSA788909  Chenopodium berlandieri Fred M. Roberts 2008-6-26 7061 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
  POM122892  Chenopodium berlandieri var. sinuatum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM18120  Chenopodium berlandieri var. sinuatum P. A. Munz 1923-9-7 7746 Orange Santiago Peak. 1723 Comment
  RSA625806  Chenopodium californicum Scott D. White, Noel Davis 1998-5-21 6546 Orange Santa Ana Mountains, Mission Viejo Area: Aliso Creek watershed, east of El Toro Road just N of junction w/ Valley Vista Way., 33 deg 40.5 N, 117 deg 37 W. 305 Comment
  RSA234486  Chenopodium macrospermum var. farinosum James Henrickson 1970-9-5 5332 Orange 3 miles NW of Huntinton Beach, at southern margin of Bolsa Chica Mesa. 0 Comment
  UC536977  Chenopodium macrospermum var. halophilum Lawrence M. Booth 1932-7-19 1289 Orange Bolsas Marsh Comment
  IRVC21667  Chenopodium multifidum R. L. Allen 1983-6-1 A649 Orange southwest of I5 at Sand Canyon Ave. near old dwellings on Burt Lane; a naturalized weed. Irvine Comment
  IRVC387  Chenopodium murale B. Mawdsley 1965-3-30 Orange east bluff at Mar Vista. Newport Beach Comment
  IRVC397  Chenopodium murale B. Newman 1965-3-31 Orange Corona del Mar, Jamboree Rd. Newport Beach Comment
  RSA749362  Chenopodium murale Fred M. Roberts 2008-4-15 6901 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 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
  RSA263  Chenopodium murale J. T. Howell 1927-7-27 486 Orange Near ranch houses, Rancho Santa Ana 152 Comment
  CDA32185  Chenopodium strictum var. glaucophyllum T. McCrainie, Mark A. Elvin 2006-9-23 3 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA260445  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  RSA5925  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 0.5 mile above La Vida Springs. 244 Comment
  CAS-BOT-BC497717  Chlorogalum pomeridianum Carl B. Wolf 1932-7-2 3828 Orange Carbon Canyon, 1/2 mi. above LA Vida Spring, upper Sonoran 243 Comment
  UCSB50639  Chlorogalum pomeridianum Roberts, Fred 1982-7-7 Orange South Laguna; Niguel Hill, 1.4 km. ESE Aliso Peak; 2.6 km. SSW Niguel Fire Station 207 Comment
  UCSB38063  Chorizanthe fimbriata var. fimbriata Roos, John 1965-6-16 Orange Dana Point near Doheney Beach. Comment
  RSA655025  Chorizanthe procumbens D. E. Bramlet 1994-6-23 s.n. 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
  RSA747627  Chorizanthe procumbens Fred M. Roberts 2008-5-16 6973 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  UCR4086  Chorizanthe procumbens Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, Salt Creek Road off Pacific Coast Highway, between South Laguna and Dana Point 18 Comment
  RSA542533  Chorizanthe procumbens Bill O'Connell 1991-5-31 6 Orange Pelican Hill: west summit. 190 Comment
  CAS-BOT-BC255246  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 miles below Laguna Comment
  CAS-BOT-BC255250  Chorizanthe staticoides Le Roy Abrams 1901-6-1 1807 Orange Mt. Santiago 914 Comment
  RSA542528  Chorizanthe staticoides Fred M. Roberts, G. A. Marsh, K. G. Marsh 1988-4-26 3942 Orange San Joaquin Hills: Pelican Hill, 0.5 kim SE Summit. 165 Comment
  RSA588851  Chorizanthe staticoides Fred M. Roberts, Kathy Keane 1989-6-28 4392 Orange Laguna Niguel: Just beyond end of Le Conte Rd along ridge, 0.6 km SW summit of Niguel Hill. 195 Comment
  RSA749998  Chorizanthe staticoides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35328 Orange Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  SD134404  Chorizanthe staticoides Craig Reiser 1992-6-11 Orange Laguna Niguel, ridge NE of intersection of Crown Valley Parkway and Pacific Island Drive Comment
  UC1175013  Chorizanthe staticoides E. K. Balls 1958-6-26 23814 Orange Comment
  UC1607969  Chorizanthe staticoides Donald G. Nelson 1936-6-5 433 Orange hills n.e. Fullerton 91 Comment
  CAS-BOT-BC502066  Chrysanthemoides monilifera R. E. Riefner, Jr. 2011-11-26 11 -159 Orange City of Laguna Beach, E side of Paific Coast Hwy, S of Aliso Circle, N of Alisa Creek 12 Comment
  IRVC19481  Chrysothamnus nauseosus Karlin G. Marsh 1982-7-27 Orange Coal Canyon, west slope at mouth of canyon; in grassland. Santa Ana Mountains Comment
  POM201617  Cicuta bolanderi L. M. Booth 1333 Orange Newport Lagoon Comment
  POM48464  Cirsium arvense F. W. Peirson 1924-10-19 5248 Orange Wintersberg. Comment
  RSA0066515  Cirsium californicum R. H. McArthur 1934-5-19 s.n. Orange Trabuco Canyon. Comment
  IRVC9122  Cirsium occidentale var. occidentale R. Yarnell 1966-4-13 74 Orange Santa Ana Canyon, old RSA Botanical Gardens site. Chino Hills Comment
  UCR194997  Cirsium vulgare A. C. Sanders, Fred M. Roberts 2008-8-7 36000 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA569735  Cistanthe monandra A. S. Boughey 153 Orange Santa Ana Mountains: Ortega Hwy., ca. 1 mi. east of San Juan Guard Sta. Comment
  CAS-BOT-BC162647  Clarkia E. W. Lathrop 1974-6-27 7408 Orange 5 miles est of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l. Forest, Santa Ana Mountains 396 Comment
  RSA734638  Clarkia bottae A. C. Sanders, Fred M. Roberts, Amber O Neal, D. E. Bramlet 2008-5-9 35307 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UC58859  Clarkia bottae W. C. Blasdale June 1891 Orange Santiago Canyon Comment
  POM3136  Clarkia epilobioides P. A. Munz 1918-5-4 2175 Orange Laguna Beach Comment
  UC1280309  Clarkia epilobioides John M. Tucker 1941-5-30 258 Orange 2-3 mi e of w boundary Cleveland National Forest (Ortega Highway) Comment
  RSA751313  Clarkia purpurea A. C. Sanders, Fred M. Roberts 2008-5-6 35275 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  UCR132980  Clarkia purpurea Adrian Wolf 2000-4-15 461 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  POM256966  Clarkia purpurea subsp. quadrivulnera W. Pequegnat 1940-6-15 s.n. Orange Santa Ana Mountains: Modjeska Flat. 1372 Comment
  RSA610412  Clarkia purpurea subsp. quadrivulnera R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  UCSB48212  Clarkia purpurea subsp. quadrivulnera Roberts, Fred 1981-5-3 Orange Santa Ana Mtns; Hot Springs Cyn; 0.8 km by road N of San Juan Guard Station 256 Comment
  RSA761794  Clarkia rhomboidea Robt. Allen 2003-6-22 12275 Orange West-facing upper slope of Santiago Peak, along North Main Divide Road,. circa 0.10 air miles northwest of Santiago Peak summit. Comment
  CAS-BOT-BC233842  Claytonia parviflora subsp. parviflora Ira L. Wiggins 1966-3-22 20548 Orange Bottom of Silverado Canyon, about 5 mi. above Ranger Station, Cleveland National Forest Comment
  RSA0036754  Claytonia perfoliata Sandy Gray 1981-04 15 Orange Carbon Canyon Rd./Hwy 142. 3 miles west of Cavida near Sleepy Hollow, Chino - then east 3 miles.. Comment
  HSC17683  Claytonia perfoliata subsp. mexicana J. W. Johnson 1961-4-2 Orange Newport Beach, along Upper Newport Bay. Comment
  RSA638959  Claytonia perfoliata subsp. perfoliata Valerie L. Soza, LeRoy Gross 1999-6-7 487 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCR237919  Clematis ligusticifolia Dick Newell, Judy Booth 2012-6-24 277 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Road 1.9 mi. NE of Maple Springs gate 817 Comment
  RSA386283  Clematis pauciflora M. B. Dunkle 1936-3-28 4715 Orange Silverado Canyon. 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
  UCR215281  Cleome isomeris Fred M. Roberts 2008-3-27 6812 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Outlook 1, 0.5 km west of Marine Institute, Dana Point Harbor 45 Comment
  POM49164  Cneoridium dumosum I. M. Johnston 1924-7-10 s.n. Orange 1/2 mi. S. of Aliso Canyon. Comment
  IRVC26428  Cneoridium dumosum Mark A. Elvin 2004-2-15 3146 Orange UCI Arboretum Southern Coastal 15 Comment
  RSA0117446  Collinsia concolor A. C. Sanders, Fred M. Roberts 2008-4-22 35026 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado. 1200 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
  IRVC21613  Comarostaphylis diversifolia var. diversifolia Fred M. Roberts 1984-3-31 1317 Orange Niguel Hill, 1.0km ENE Aliso Peak, 2.1km SW Alicia Fire Station, Laguna Niguel 275 Comment
  RSA751187  Conium maculatum A. C. Sanders, Fred M. Roberts 2008-6-17 35455 Orange Lomas de Santiago, Hicks Canyon Haul Road 0.5 mi. east of the Foothill Transportation Corridor 244 Comment
  SD127479  Conium maculatum Reid Moran, Gordon Marsh and Jack Reveal 1977-6-13 24237 Orange Willow Canyon, tributary of Laguna Canyon 124 Comment
  UCR109771  Convolvulus arvensis R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange NW of El Toro, Tustin Township, near Borrego Canyon Wash, SE edge of El Toro M.C. Air Station 107 Comment
  UCR16173  Convolvulus arvensis Art Dawson 1968-5-4 s.n. Orange Rancho Mission Viejo, Ortega Hwy near San Juan Capistrano, 0.5 mi. north of Ranch Headquarters Comment
  UCR97074  Convolvulus arvensis Scott D. White 1993-4-28 1281 Orange Pacific slope, Tustin Marine Corps Air Station, NW of Peters Canyon Channel, between Moffett Dr. & Warner Comment
  POM312786  Convolvulus arvensis D. Taylor 1952-10 327 Orange South of Chino near C I M Comment
  RSA718958  Conyza bonariensis Fred M. Roberts, Robert L. Allen 2006-10-8 6422 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
  IRVC25164  Conyza canadensis Fred M. Roberts 1986-9-3 3141 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA788803  Conyza canadensis R. F. Thorne 1977-11-21 49983 -b Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp Comment
  UC537038  Conyza canadensis Lawrence M. Booth 1932-12-13 1375 Orange Newport Bay Comment
  RSA91008  Conyza canadensis F. W. Peirson 1924-10-19 5242 Orange Wintersberg. Comment
  IRVC24224  Conyza coulteri Fred M. Roberts 1985-10-1 2292 Orange Silverado Canyon, Silverado Canyon Road, 1.0km by road E junction Santiago Canyon Road. Santa Ana Mountains 320 Comment
  UCR241916  Conyza coulteri Fred M. Roberts, Lee Ann Caranza 2009-9-23 7162 Orange Southern Coastal Plain, Dana Point, Dana Point Headlands, CNLM Dana Point Preserve, old Marguerite Road bed just west of the Nature Center and just east of the terminus of Dana Strands Road, 0.7 km west pier, Dana Point Harbor 73 Comment
  UCR80037  Conyza coulteri Scott D. White 1992-10-20 970 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  IRVC24159  Conyza coulteri Fred M. Roberts 1985-9-16 2234 Orange Peter's Creek Channel, 0.1km N Main St. bridge, Irvine 6 Comment
  RSA486865  Cordylanthus maritimus subsp. maritimus P. R. Atsatt 1971-6-15 s.n. Orange Newport Beach, Back Bay 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-BC101296  Corethrogyne filaginifolia Carl B. Wolf 1933-8-24 5394 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  LA205799  Corethrogyne filaginifolia W. Pequegnat; 1937-9-1 sn Orange Santa Ana Mountains, Top of Horsethief Trail Comment
  POM18125  Corethrogyne filaginifolia P. A. Munz 1923-9-7 7739 Orange Santiago Peak in Santa Ana Mountains. 1706 Comment
  PASA1814  Corethrogyne filaginifolia Frank W. Peirson 1924-8-29 Orange 2 miles from Balboa on toad inland along creek Comment
  RSA93100  Corethrogyne filaginifolia F. W. Peirson 1924-8-29 5087 Orange Inland 2.5 miles from Balboa Beach 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
  UC1719498  Coronopus didymus D. Atwood 1993-3-29 17727 Orange Huntington Beach along Beach Blvd. ca. 1/2 mi N of the beach 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
  UCR210374  Coronopus didymus T. B. Salvato, Billy Deane 2006-10-16 1935 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  CDA20829  Cotula coronopifolia P. Akers 2006-3-25 PA 3 -06 Orange Peninsular Ranges; Yorba Linda, N edge of Santa Ana River. S of La Palma Dr, 0.5-0.8 mi E of Yorba Linda Dr. 121 Comment
  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
  UCD130917  Cotula coronopifolia H. Wahlberg 1923-3-13 s.n. Orange Santa Ana. Comment
  JEPS37550  Cotula coronopifolia Alice King April 1908 Orange Santa Ana River Comment
  CDA7469  Cotula hispida R. E. Riefner Jr. 2006-2-12 26 -Jun Orange City of San Clemente, north ca. 0.5 mile along the beach from Avenue Del Mar / San Clemente Pier area. Comment
  RSA17588  Cotyledon orbiculata C. B. Wolf 1936-7-8 8099 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  UC1543004  Crassula aquatica Donald G. Nelson 1935-4-15 303 Orange on rd. from Garden Grove to Costa Mesa (toward main hwy. from Santa Ana) Comment
  UCR191443  Crassula connata A. C. Sanders, Fred M. Roberts 2008-4-8 34725 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA184073  Crassula connata I. L. Wiggins 1966-3-5 20498 Orange Among grasses and weeds on grazed hillside, along hwy S-18, about 4.5 mi. E of Laguna Beach Comment
  POM201720  Cressa truxillensis L. M. Booth 1932-5-18 1052 Orange Newport Bay Comment
  RSA697347  Cressa truxillensis Keith E. Hoffmaster 1926-12-18 s.n. Orange Santa Ana Comment
  RSA0009408  Cressa truxillensis Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  SD247629  Crocanthemum aldersonii R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains; Coal Canyon [NE of Sierra Peak] 456 Comment
  HSC25245  Croton californicus R. W. Spjut 1972-2-22 2222 Orange Near S Laguna Beach along Hwy. 1 0 Comment
  RSA734600  Croton californicus A. C. Sanders, Fred M. Roberts 2008-5-6 35229 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  RSA748257  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  UCR193030  Croton californicus A. C. Sanders, Fred M. Roberts 2008-6-17 35518 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  RSA0043358  Crypsis schoenoides Fred M. Roberts, Laura Cohen 2012-10-31 7715 Orange San Joaquin HillsL Laguna Lake 1 (Upper Laguna Lake), north end. Laguna Coast Wilderness Park, ca. 5.1 km ENE Signal Hill. 113 Comment
  UCR197692  Crypsis schoenoides A. C. Sanders, Fred M. Roberts 2008-9-18 36076 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 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
  RSA797354B  Cryptantha D. M. McF 1956-4-11 7 Orange Moulton Ranch, South Coast. 152 Comment
  CAS-BOT-BC189255  Cryptantha Helen D. Geis 1902-1-1 515 Orange Unspecified Comment
  SEINET6971880  Cryptantha W. P. Vestal, A. G. Vestal 1955-3-24 3451 D Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  IRVC24791  Cryptantha clevelandii Karlin G. Marsh 1989-3-15 Orange Lomas Ridge, west branch of Rattlesnake Canyon; coastal sage scrub. Lomas de Santiago Comment
  RSA643  Cryptantha clevelandii J. T. Howell 1928-4-7 897 Orange Bee Canon, Rancho Santa Ana 152 Comment
  IRVC15158  Cryptantha intermedia J. Schram 1965-5-9 Orange San Juan Capistrano Comment
  RSA687518  Cryptantha intermedia Fred M. Roberts, D. E. Bramlet 2003-4-10 5651 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, ridge between Cristianitos Cyn. and Segunda Deshecha Canada, 1.54km W Gato Gate and 1.59km NW Edison substation. 262 Comment
  RSA731998  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-4-22 35057 Orange Penisular Range; 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 mi. WSW of Silverado 493 Comment
  RSA732088  Cryptantha intermedia A. C. Sanders, Fred M. Roberts 2008-3-25 34546 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SDSU5475  Cryptantha intermedia A. M. White 1974-6-1 74 -671 Orange Ca. 20 m. east of Santa Ana; north of Silverado Canyon. 1006 Comment
  UCSB47630  Cryptantha intermedia Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns.: 1.0 km. SE Blue Jay Campground; 2.8 km. SW El Cariso Guard Station 1010 Comment
  UCSB48052  Cryptantha intermedia Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point Headlands: south of Dana Strand Road., 0.5 km W Dana Point Harbor; 0.8 km SSW Richard Henry Dana School 80 Comment
  RSA0127598  Cryptantha microstachys Fred M. Roberts, Diane Etchison 2016-3-22 8028 Orange Lomas de Santiago: west of Irvine Lake and north of Santiago Canyon Road, southeastern slope of Hill 1332 near toe of slope, about 1.9km S Irvine Lake Dam spillway. 263 Comment
  UC1178547  Cryptantha microstachys Peter Kamb 1948-6-19 1094 Orange Holy Jim Canyon Santa Ana Mts. 609 Comment
  UCR47757  Cryptantha microstachys F. R. Fosberg 1930-6-15 S- 02937 Orange Santa Ana Mtns, Santiago Canyon, near Modjeska's home. 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
  SEINET7073423  Cryptantha muricata A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  IRVC17025  Cryptantha muricata var. muricata C. Weir 1965-4-24 Orange Newport Back Bay. Newport Beach Comment
  OBI19347  Cupressus arizonica Carl B. Wolf 1935-1-2 6279 Orange Santa Ana Mts, slopes of Sierra Peak, W of Claymine cyn along road to peak 671 Comment
  CAS-BOT-BC80568  Cupressus forbesii P. A. Munz; I. M. Johnston 1922-5-18 5566 Orange Santa Ana Mts. 457 Comment
  JEPS39796  Cupressus forbesii John Thomas Howell 1927-8-10 2983 a Orange Claymire Canyon Santa Ana Mts., Sierra Peak, Claymire Canyon 609 Comment
  RSA14145  Cupressus forbesii R. C. Bacigalupi 1935-6-22 2354 Orange Head of Clay Mine Canyon on drainage of Santa Ana River, northern end of Santa Ana Mountains Comment
  RSA690978  Cuscuta californica Scott D. White, Michael Honer 2003-5-29 9432 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
  CDA39941  Cuscuta campestris T. C. Fuller 1958-8-5 5121 Orange North side of Orangethorpe Ave., east of Brookhurst Road, Anaheim. 0 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
  UCR10366  Cuscuta salina Thomas A. Zink 1971-1 s.n. Orange South Coast, Newport Back Bay near the west end of the water-skiing area 3 Comment
  UCR194551  Cuscuta subinclusa A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35320 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SEINET891443  Cuscuta subinclusa Philip A. Munz 1946-1 11555 Orange on Salix spp. And Baccharis; Sarta Ana River bottom, Rancho Santa Ana. 121 Comment
  UCD54451  Cuscuta subinclusa R. Keith Glenn 1973-8-27 s.n. Orange 1 mile north of Barranca Rd. off Sand Canyon Rd. Comment
  IRVC24278  Cycloloma atriplicifolium Fred M. Roberts, G. A. Marsh 1985-10-26 2523 Orange Santa Ana River: adjacent to Huntington Beach; 0.7km SSW Adams Street bridge. southern coastal 4 Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  RSA266  Cycloloma atriplicifolium J. T. Howell 1928-5-13 968 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UCR109772  Cynara cardunculus R. D. Goeden, Don W. Ricker 1965-6-15 s.n. Orange Canada de Los Alisos, El Toro 122 Comment
  UCR48039  Cynara cardunculus Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  RSA797404  Cynara cardunculus subsp. flavescens Keith E. Hoffmaster 1933-10-8 s.n. Orange Near Newport Bay. Comment
  CAS-BOT-BC190297  Cynodon dactylon Ira L. Wiggins 1965-9-26 20253 Orange In Carbon Canyon about 3.5 miles above its mouth. Comment
  UCR193008  Cynodon dactylon A. C. Sanders 2008-5-28 35443 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA0043356  Cyperus erythrorhizos Fred M. Roberts, Laura Cohen 2012-10-31 7712 Orange San Joaquin Hills. Upper Laguna Lake, north end. Laguna Coast Wilderness Park, c. 5.1 km east northeast of Signal Hill. 113 Comment
  RSA5914  Cyperus laevigatus Carl B. Wolf 1932-7-2 3813 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  CAS-BOT-BC114242  Cyperus laevigatus J. Ewan 1931-10-3 5197 Orange Choking stream bed below La Vida Soda Springs, Carbon Canyon. Comment
  RSA797602  Cyperus niger var. capitatus Robert F. Thorne 1977-11-21 49999 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  CAS-BOT-BC113936  Cyperus odoratus LeRoy Abrams 1901-6-1 1773 Orange Laguna Lake, San Juan Hills. Comment
  RSA718966  Cyperus odoratus Fred M. Roberts, Robert L. Allen 2006-10-8 6414 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
  RSA725964  Cyperus odoratus R. E. Riefner 2005-10-27 05 -728 Orange South Coast: Huntington Beach, Huntington Central Park near Goldenwest St. 1 Comment
  UC838255  Cyperus odoratus P. A. Munz 1922-9-2 6359 a Orange Laguna Lake 45 Comment
  RSA92111  Cyperus odoratus F. W. Peirson 1924-10-19 2532 Orange Wintersberg Comment
  UC2031956  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-16 12 -5 Orange City of Newport Beach, Corona Del Mar, beach area west of Morning Canyon Road Comment
  UC2031959  Cyrtomium falcatum R. E. Riefner Jr. 2012-1-26 12 -11 Orange City of Laguna Beach, Aliso Creek Beach, rocky intertidal area Comment
  POM364993  Dactylis glomerata C. B. Wolf 1932-6-13 3715 -A Orange Fullerton, Rose Drive 53 Comment
  CAS-BOT-BC402185  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
  UC2042145  Datisca glomerata R. F. Thorne with 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
  UCR174179  Datisca glomerata A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33019 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  IRVC29795  Datura stramonium Mark A. Elvin, Dean Kelch 2006-12-9 5321 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  RSA647957  Datura wrightii Mark Breidenbaugh, Caralisa Breidenbaush 1992-5-1 15 Orange 1/2 mile south of Chino Hills State Park. 198 Comment
  RSA699549  Daucus pusillus L. C. Hull 1934-8-4 s.n. Orange Laguna Hills Comment
  CAS-BOT-BC299327  Deinandra fasciculata David D. Keck 1932-9-29 1898 Orange Ca. 5 mi. S. of Santa Ana on road to Newport Beach Comment
  CAS-BOT-BC299331  Deinandra fasciculata H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  UCR146881  Deinandra paniculata Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
Read comments
Jan 8 2013
  UCR254222  Deinandra paniculata R. E. Riefner Jr. 2013-8-16 13- 188 Orange South Coast, City of Dana Point, canyon west of Dana Hills High School, north of Stonehill Drive, east of Cortes Drive 86 Comment
  RSA350609  Delphinium maritimum Anstruther Davidson 1910-4-20 2471 Orange Corona Del Mar. Comment
  UCR132978  Delphinium parryi Adrian Wolf 2000-4-15 460 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Baker Canyon Road 335 Comment
  RSA679218  Delphinium parryi subsp. parryi Fred M. Roberts 2003-6-17 5915 Orange Just NE of Falcon roup Camp, 2.1km ESWE Los Pinos Peak just west of main road. 1009 Comment
  RSA785384  Dendromecon rigida Keith E. Hoffmaster 1932-4-17 401 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  RSA0014989  Dicentra chrysantha Fred M. Roberts 2008-5-20 6989 Orange Lomas de Santiago: Santiago Creek wash north of Hanging Man's Tree Road near confluence of Pancho Cyn., 1.6 km NW Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  RSA433549  Dicentra chrysantha M. B. Dunkle 1934-6-18 3974 Orange Upper San Juan Canyon. 610 Comment
  VVC357  Dicentra chrysantha P. J. MacKay 1990-5-25 s.n. Orange Peninsular Range, Hwy 74 near San Juan Hot Springs 198 Comment
  RSA171110  Dicentra ochroleuca Robert F. Thorne 1963-7-26 32823 Orange Trabuco District, Santa Ana Mts, Cleveland National Forest Comment
  POM172076  Dicentra ochroleuca Unspecified 1930-04 s.n. Orange Santa Ana Mts. Comment
  UCR223432  Dichelostemma capitatum Dick Newell, Don Millar 2011-2-8 054 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
  RSA0034528  Dichelostemma capitatum Paul Shirokawa 1998-4-24 3 Orange Cleveland National Forest - Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 960 Comment
  RSA590942  Dichelostemma capitatum subsp. capitatum Fred M. Roberts Jr. 1991-5-2 4782 Orange San Joaquin Hills: Laguna Canyon, Laguna Laurel, just W of Laguna Canyon Road, ca 2 km N jct El Toro Road, 4.5 km E Signal Peak. 110 Comment
  SEINET6879160  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1955-3-24 s.n. Orange Trabuco Canyon, about 5 miles east of El Toro. 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
  SD152749  Digitalis purpurea Steve Boyd, Tim 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 homestea. 351 Comment
  RSA791493  Digitaria sanguinalis R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49611 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station Comment
  SD248332  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11 79 Orange City of Newport Beach, beach area west of Shorecliff Road and Cameo Shores Road. 2 Comment
  RSA0013965  Dimorphotheca sinuata Fred M. Roberts 2008-4-22 6924 Orange Lomas de Santiago: Loma Ridge, Upper Hicks Cyn., along Haul Road, 0.8 km WNW Bee Peak and 3.2 km E Rattlesnake Resservoir dam. 302 Comment
  SD48448  Diplacus clevelandii E. K. Balls, P. C. Everett 1957-11-25 22845 Orange 4.7 mi. e. of Silverado Comment
  SD42977  Diplacus puniceus Ethel B. Higgins March 1948 Orange Near San Juan Camp Comment
  RSA715248  Diplotaxis muralis A. C. Sanders 2006-5-6 32250 Orange South Coast: UC Irvine Arboretum, NE side of gardens towards Campus Dr. 15 Comment
  UC856048  Diplotaxis tenuifolia I. M. Johnston 1918-5-4 1927 Orange Santa Ana Comment
  UCD114710  Diplotaxis tenuifolia W. W. Robbins 1931-5-11 2203 Orange Santa Ana. Comment
  UCR240095  Distichlis littoralis Dick Newell, Judy Booth, Don Millar 2012-11-28 311 Orange South Coast, Newport Beach, Back Bay, 0.8 mi. due south of University Drive, off Brown Trail 1 Comment
  POM1195  Distichlis spicata D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon Comment
  RSA735749  Distichlis spicata A. C. Sanders, Fred M. Roberts 2008-6-17 35495 Orange 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
  RSA743471  Distichlis spicata Fred M. Roberts 2008-10-9 7124 Orange Dana Point: Dana Point Headlands, CNLM Preserve, at base of cliff adjacent to Dana Strands Beach, 0.8km WNW Marine Institute (Dana Point Harbor). 3 Comment
  UCR158165  Distichlis spicata Adrian Wolf 1998-5-27 338 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
  UC2062535  Distichlis spicata subsp. spicata Hester L. Bell with Anna L. Bell 2002-5-1 259 Orange Shellmaker Road in Lower Newport Bay, near Shellmaker Island and Upper Newport Bay Reserve. Comment
  UCD64386  Distichlis spicata var. stolonifera C. B. Wolf Date Unknown 3815 Orange Orange Co. Comment
  RSA461342  Dodecatheon clevelandii M. B. Dunkle 1935-3-3 4344 Orange San Juan Canyon. 457 Comment
  RSA627743  Dodecatheon clevelandii Scott D. White, Brian Leatherman 1998-1-26 6063 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.) 12 Comment
  CAS-BOT-BC41674  Draba cuneifolia var. integrifolia Ira L. Wiggins 1966-2-25 20477 Orange Firestone Boy Scout Reservation east of Brea. Comment
  CAS-BOT-BC41701  Draba cuneifolia var. sonorae Helen D. Geis 1902-3-29 s.n. Orange Santa Ana River. Comment
  POM493  Draba cuneifolia var. sonorae C. F. Baker 1904-4-1 4126 Orange Anaheim. Comment
  UCSB48384  Drymocallis glandulosa var. glandulosa Roberts, Fred 1982-4-18 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 0.6km SW Lower San Juan Picnic Ground; 1.9km WNW Sitton Peak 420 Comment
  IRVC20515  Dryopteris arguta Fred M. Roberts 1983-9-26 1120 Orange Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak. Santa Ana Mountains 810 Comment
  RSA698476  Dryopteris arguta Minor Warne 1934-4-14 s.n. Orange Laguna Canyon Forks. Comment
  RSA754061  Dryopteris arguta A. C. Sanders, Fred M. Roberts 2008-7-16 35862 Orange Lomas de Santiago, lower Hangmans Tree Canyon 379 Comment
  UCR222640  Dryopteris arguta D. E. Bramlet 2008-4-1 4138 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, upper Hicks Canyon, 24 m south of the Haul Road 302 Comment
  NY387869  Dudleya R. V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyon, south of Laguna Beach. 7.6 Comment
  CAS-BOT-BC109566  Dudleya blochmaniae subsp. blochmaniae Reid Moran 1950-4-24 3388 Orange San Clemente, atop sea bluffs Comment
  LA204784  Dudleya blochmaniae subsp. blochmaniae Joan Malloy; 1952-5-18 sn Orange Salt Creek Beach, Laguna Comment
  SBBG94387  Dudleya blochmaniae subsp. blochmaniae R. Moran 1950-4-24 3388 Orange San Clemente Comment
  RSA542642  Dudleya edulis Fred M. Roberts, K. Keane 1988-5-26 4007 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  UC806718  Dudleya edulis R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  RSA542641  Dudleya edulis Jeni L. Roberts, K. Keane 1988-5-25 3981 Orange Rancho Mission Viejo; Lower Canada Chiquita, 2.5 km SSE Medium Rancho Survey Mark; 105 Comment
  CLARK-A1528-2622  Dudleya lanceolata John C. Roos 1937-5-21 2338 Orange Santa Ana Comment
  POM296489  Dudleya lanceolata Lyman Benson 1950-4-29 I- 4339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
Read comments
Oct 23 2014
  POM6592  Dudleya lanceolata P. A. Munz 1919-5-4 s.n. Orange Laguna canyon Comment
  RSA5350  Dudleya lanceolata B. D. Stark 1932-12-9 1674 Orange Dana Point Comment
  CAS-BOT-BC411400  Dudleya lanceolata E. K. Balls 1949-5-21 13470 Orange Botanic Garden, hillside E of Cactus Gerden, Santa Ana River canyon 198 Comment
  CAS-BOT-BC411406  Dudleya lanceolata K. Nakai 1978-2-5 211 Orange Aliso Canyon, ca. 200 m E of Calif. Hwy 1 on N facing cliffs 10 Comment
  RSA397795  Dudleya lanceolata Anstruther Davidson s.n. Orange Newport Comment
  RSA5410  Dudleya lanceolata C. B. Wolf 1932-12-16 1681 Orange At bar of plumes 0.5 mi. from Skyline Drive on firebreak road to Sierra Peak, Santa Ana Mts. Alt. 2500-3000 ft. 762 Comment
  JEPS50031  Dudleya multicaulis Frank W. Peirson 3071 Orange Santa Ana Mountains Santa Ana Canyon; , Santa Ana Canyon 121 Comment
  RSA0013967  Dudleya multicaulis Fred M. Roberts 2008-4-23 6925 Orange Lomas de Santiago: Loma Ridge, north end along Sheriff Rd., 1.6 km SE Peters Canyn Reservoir dam. 340 Comment
  RSA397815  Dudleya multicaulis Thekla Mohr 1920-06 s.n. Orange Hills near Laguna Comment
  RSA550600  Dudleya multicaulis Fred M. Roberts 1989-4-26 4313 Orange Santa Ana Mts.; ridge N of Santiago Canyon W of Blind Canyon, 9.5km SW Sierra Peak, ca. 1.7km NW Irvine Lake spillway. 247 Comment
  RSA550604  Dudleya multicaulis Fred M. Roberts 1989-4-25 4309 Orange Santa Ana Mountains: East Rim of Blind Canyon 8.5 kilometers SW Sierra Peak, c. 1.4 kilometer N Irvine Lake spillway. 366 Comment
  SD115480  Dudleya multicaulis H. A. Wier 1978-4-14 Orange Southwest facing bank of canyon below access road, TRW facitilty, San Clemente. Comment
  UCR193275  Dudleya multicaulis A. C. Sanders, Fred M. Roberts 2008-6-17 35509 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA176277  Dudleya pulverulenta R. F. Thorne 1963-7-26 32845 Orange Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts. Cleveland Natl Forest. Comment
  NY24581  Dudleya stolonifera R. V. Moran 1949-7-2 3286 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
  RSA534167  Dudleya stolonifera Reid V. Moran 1977-6-13 24230 Orange Willow Canyon, tributary of Laguna Canyon. 125 Comment
  SBBG96432  Dudleya stolonifera R. Moran 1977-6-13 24230 Orange Willow Cyn, tributary of Laguna Cyn 125 Comment
  SD130042  Dudleya stolonifera Reid Moran 1977-6-13 24238 Orange North-facing cliff near mouth of Aliso Canyon. 10 Comment
Read comments
Nov 27 2014
  UCSB50636  Dudleya viscida Roberts, Fred 1982-7-9 Orange Santa Ana Mtns.; San Juan Canyon, Hwy. 74, 1.4 km. by road E San Juan Guard Station; 4.6 km. W Sitton Peak 275 Comment
  RSA731947  Echinochloa colona Fred M. Roberts, Sandy Leatherman 2007-11-27 6688 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  UCD60763  Echinochloa colona Ira L. Wiggins 1965-10-2 20269 Orange Curbway at corner of Longview Dr. and Dorothy Lane, Fullerton. Comment
  UCR44900  Echinochloa colona B. G. Pitzer, L. F. LaPre 1986-10-20 323 Orange Trabuco Road at intersection with Sand Canyon Avenue, NW of El Toro Marine Air Station 79 Comment
  CAS-BOT-BC197175  Echinochloa crus-galli Carl B. Wolf 1932-6-13 3720 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  RSA21041  Echinochloa crus-galli E. R. Johnson 1938-8-22 9451 Orange Rancho Santa Ana, Santa Ana Canyon; South of Picnic Grounds 122 Comment
  SD218250  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Irvine; San Joaquin Freshwater Marsh near Campus and University Drs. 3 Comment
  SEINET239014 Image available Echinochloa crus-galli Beecher Crampton 1965-10-27 7586 Orange UC-South Coast F.S. Comment
  UC537283  Echinochloa crus-galli Lawrence M. Booth 1932-7-25 1314 Orange Santa Ana River Channel 2 mi from Ocean; Santa Ana River Channel Comment
  UCD60916  Echinochloa crus-galli Ira L. Wiggins 1965-9-26 20261 Orange Roadside at west end of Orangethorpe Estates subdivision, near Atwood. Comment
  UCR154271  Echinochloa crus-galli Mark A. Elvin 2004-5-2 3426 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR2340  Echinochloa crus-galli F. M. Reed 1920-8-27 4498 Orange Coastal Plain, roadside north of Orange 61 Comment
  SD247549  Echinochloa crus-galli R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49634 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. Roadside ditch. Comment
  POM1011  Echinodorus berteroi I. M. Johnston 1918-9-3 2151 Orange Laguna Canyon (at the lakes) 107 Comment
  UCR207559  Echinodorus berteroi O. F. Clarke 2004-7-19 s.n. Orange South Coast, Talbert Regional Park, Costa Mesa, at end of 19th St. 3 Comment
  RSA747632  Echium candicans Fred M. Roberts 2008-5-16 6979 Orange Dana Point: Dana Point Headlands, CNLM Preserve, along north slopes above Dana Strand Beach, 0.8km WNW Marine Institute, Dana Point Harbor. 45 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
  UCR218616  Eleocharis coloradoensis Robert DeRuff 2008-1 575 Orange South Coast, Upper Newport Bay, between Mariner's Drive and 23rd St. 12 Comment
  RSA717154  Eleocharis montevidensis Fred M. Roberts, Chris M. Barnhill 2005-9-27 6283 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  CLARK-A1045-1003  Eleocharis palustris George K. Helmkamp 1978-3-3 Orange Newport Beach wet ditch along Newport Back Bay; Newport Beach 7.5'Q Comment
  POM1361  Eleocharis palustris Phillip A. Munz 1918-5-4 2210 Orange Laguna Beach. Comment
  RSA735160  Eleocharis palustris A. C. Sanders, Fred M. Roberts 2008-5-6 35240 Orange Lomas de Santiago, Loma Ridge, head of Hicks Canyon, south of Santiago Reservoir 351 Comment
  RSA799616  Eleocharis palustris Justin M. Wood 2011-4-12 3661 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  UCSB47988  Eleocharis palustris Roberts, Jr., Fred 1980-6-25 Orange Santa Ana Mtns., San Juan Canyon, 2.4 km. ENE San Juan Guard Station; 0.3 km. WSW Bench Mark 1100 290 Comment
  SD245178  Eleocharis parishii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49571 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway(74). San Juan Creek. Comment
  RSA723492  Eleusine coracana subsp. africana R. E. Riefner 2005-10-17 5 -724 Orange City of Los Alamitos, Arroyo Park, Heather St. at Lamson Ave. 10 Comment
  RSA735124  Eleusine coracana subsp. africana R. E. Riefner 2005-10-5 5 -718 Orange City of Yorba Linda, near Horseshoe Bend along the Santa Ana River. 102 Comment
  UCR191242  Elymus condensatus A. C. Sanders 2008-4-29 35137 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
  UCR228755  Elymus condensatus Dick Newell, Don Millar 2011-5-24 162 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Hicks Haul Road 286 Comment
  UCR281490  Elymus condensatus Mitch Provance 2017-6-9 617- 100 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA591752  Elymus glaucus E. W. Lathrop 1966-4-18 6172 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  POM365352  Elymus glaucus subsp. glaucus H. L. Bauer 1925-4-20 s.n. Orange Trabuco Canyon., [33 deg 40'05N, 117 deg 33'45W] Comment
  POM1331  Elymus multisetus Le Roy Abrams 1901-06 1823 Orange Santiago Peak Trail 915 Comment
  UCR93245  Elymus triticoides F. M. Reed 1928-5-10 5883 Orange Laguna Canyon below lakes 91 Comment
  UCR271003  Emex spinosa Mitch Provance, Travis Kegel 2016-4-8 416- 60 Orange Coastal Regions of Southern California, Newport Beach, W of the W end of 16th Street, and E of the Banning Oil Fields 32 Comment
  CAS-BOT-BC131231  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina 10 Comment
  IRVC649  Encelia californica L. Stilgenbauer 1965-3-28 Orange Corona del Mar, MacArthur Blvd. Newport Beach Comment
  POM356656  Encelia californica M. B. Dunkle 1933-4-9 32888 Orange Dana Point. Comment
  IRVC653  Encelia californica B. T. Gittins, R. Hobson 1965-4-10 Orange Comment
  RSA637499  Epilobium canum Valerie L. Soza, LeRoy Gross 1999-6-10 516 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  UC1607997  Epilobium canum Donald G. Nelson 1933-7-16 133 Orange hills N of Fullerton 76 Comment
  UCR220969  Epilobium canum Dick Newell, Don Millar 2010-8-3 31 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, One Cactus Trail, 1/4 mile west of Limestone Ridge Rd., 0.88 mi. west of Santiago Canyon Rd. 409 Comment
  LA206113  Epilobium canum subsp. latifolium W. E. Pequegnat; 1937-8-11 7 a Orange Santa Ana Mountains, Santiago Peak Comment
  UCR182903  Epilobium ciliatum Pat Akers 2006-3-25 PA4 06 Orange Yorba Linda. Santa Ana River on a large (300-400 ft) sandy/cobbly flat. south of La Palma Dr, 0.6-0.9 mi. east of Yorba Linda Dr 122 Comment
  UCR240070  Epilobium ciliatum Dick Newell, Judy Booth 2012-9-26 290 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  JEPS31485  Epilobium ciliatum subsp. ciliatum L. M. Booth 1932-6-28 1212 Orange Bolsas Creek Comment
  UC537275  Epilobium ciliatum subsp. ciliatum Lawrence M. Booth 1932-6-4 1145 Orange Newport Lagoon Comment
  RSA698282  Epilobium watsonii var. franciscanum Snow 1929-3-18 39 Orange Santa Ana River. Comment
  RSA754075  Epipactis gigantea A. C. Sanders, Fred M. Roberts 2008-7-16 35844 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCR174208  Epipactis gigantea A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33030 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  UCR174229  Equisetum arvense A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33038 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  SD245160  Equisetum arvense R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49566 Orange Santa Ana Mountains: San Joan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA0031655  Equisetum funstonii Keith E. Hoffmaster 1937-4-11 749 Orange Black Star Can., Santa Ana Mts. Comment
  RSA0031657  Equisetum telmateia subsp. braunii Keith E. Hoffmaster 1934-7-3 106 Orange Near Costa Mesa. Comment
  UC284888  Equisetum telmateia subsp. braunii P. A. Munz 1923-9-7 7731 Orange Holy Jim Canyon; Santa Ana Mts. 609 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
  UCD63541  Eragrostis mexicana subsp. virescens Frank W. Gould 1944-6-25 2362 Orange Tournat Ranch, Garden Grove. Comment
  CHSC116469  Eragrostis mexicana subsp. virescens R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCD64312  Eragrostis pectinacea Beecher Crampton 1965-10-27 7583 Orange 2 miles E of Irvine, UC South Coast Field Station. Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  SEINET7909393  Eriastrum eremicum C. Knight 1967-1 Orange San Juan Capistramo 610 Comment
  CAS-BOT-BC515000  Eriastrum sapphirinum subsp. dasyanthum H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  RSA0122941  Eriastrum sapphirinum subsp. dasyanthum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  RSA644962  Ericameria cuneata var. cuneata R. E. Riefner, Adrian Wolf 2000-1-18 20 -104 Orange NCCP North Ranch Policy Plan Area. Upper drainage of Fremont Canyon: S. of Claymore Mine. 610 Comment
  POM201792  Ericameria palmeri var. pachylepis L. M. Booth s.n. Orange Newport Beach Comment
  RSA292464  Ericameria palmeri var. pachylepis James Henrickson 1972-10-21 8076 Orange Newport Beach, So. of Jamboree Rd., E. of Irvine Coast Country Club near U.C. Irvine. Irrigated grassland eventually to be used for large Newport Beach Business Center. 46 Comment
  UCR220966  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange South Coast, access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  POM18133  Ericameria parishii P. A. Munz 1923-9-7 7767 Orange Santa Ana Mts, from Trabuco Canyon to Santiago Peak 915 Comment
  CAS-BOT-BC131638  Ericameria parishii var. parishii Carl B. Wolf 1933-8-24 5407 Orange Santa Ana Mts., along main divide motorway between Bedford Pk. & Santiago Pk. 1066 Comment
  CAS-BOT-BC293091  Ericameria pinifolia John Thomas Howell 1927-10-23 3172 Orange On n. side of Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC293092  Ericameria pinifolia John Thomas Howell 1927-10-22 3158 Orange On n. side of Santa Ana Canon [Canyon] 213 Comment
  UCD131704  Erigeron bonariensis L. M. Booth 1932-6-9 1181 Orange Newport Bay. Comment
  RSA696783  Erigeron foliosus Minor Warne 1934-5-19 s.n. Orange Trabuco. Comment
  CAS-BOT-BC296212  Erigeron foliosus var. foliosus John Thomas Howell 1927-6-1 2405 Orange Southern Puente Hills in teh SAnta Ana Canyon Comment
  UCR241046  Erigeron karvinskianus Robert DeRuff 2011-6-20 345 B Orange South Coast, Upper Newport Bay, along bay side of Back Bay Dr. below Eastbluff North 3 Comment
  SD234804  Erigeron sumatrensis R. E. Riefner Jr. 2003-12-13 3 503 Orange South Coast: Los Alamitos, San Gabriel River, vicinity of Chestnut St and Cernitos Ave. (Los Alamitos 7.5'Q) 10 Comment
  CAS-BOT-BC402191  Eriodictyon crassifolium R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49682 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA455041  Eriodictyon crassifolium F. R. Fosberg 1931-6-21 5095 Orange Lower Santiago Canyon. Comment
  POM18124  Eriogonum elongatum P. A. Munz 1923-9-7 7740 Orange Santiago Peak in Santa Ana Mountains. 1707 Comment
  RSA749687  Eriogonum elongatum A. C. Sanders, Fred M. Roberts 2008-7-16 35829 Orange Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail 290 Comment
  RSA393517  Eriogonum fasciculatum N. C. Cooper 1949-5-1 3943 Orange San Juan Canyon. 610 Comment
  RSA581363  Eriogonum fasciculatum R. E. Riefner Jr. 1995-4-17 95 -67 Orange San Clemente State Beach, NW bluff. Comment
  RSA658200  Eriogonum fasciculatum T. A. Daubert 1991-5-19 650 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA669571  Eriogonum fasciculatum D. B. Boatman 1969-3-16 690316 -6 Orange 1/2 mile E crossroads Newport Blvd. and Skyline Dr. Tustin. 91 Comment
  RSA698423  Eriogonum fasciculatum L. C. Hull 1934-4-8 s.n. Orange Laguna Hills. 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
  RSA649079  Eriogonum fasciculatum subsp. fasciculatum Karl Price 1988-4-28 10 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
  RSA734991  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  CAS-BOT-BC249944  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2835 Orange Santa Ana Canyon 152 Comment
  CAS-BOT-BC249947  Eriogonum fasciculatum var. foliolosum John Thomas Howell 1927-7-24 2836 Orange Near entrance to Claymine Canon [Canyon], Santa Ana Canon [Canyon] 152 Comment
  SEINET6418404  Eriogonum fasciculatum var. foliolosum W. Halvorson 1969-8-22 360 Orange 8 miles east of El Toro 61 Comment
  RSA7391  Eriogonum fasciculatum var. polifolium Carl B. Wolf 1933-8-24 5402 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  CAS-BOT-BC253477  Eriogonum gracile L. M. Booth 1933-8-26 1386 Orange Newport Lagoon Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  RSA539352  Eriogonum nudum var. pauciflorum Fred M. Roberts, Richard E. Riefner 1988-7-9 4118 Orange Santa Ana Mountains: Upper Silverado Canyon, Maple Springs Truck Trail, 11.5 km above Silverado Gate, 1.1 km NNW Modjeska Peak. 1350 Comment
  RSA539351  Eriogonum saxatile Fred M. Roberts 1988-6-10 4097 Orange Santa Ana Mountains: Modjeska Peak, 0.9km SW summit. 1542 Comment
  CAS-BOT-BC263019  Eriogonum thurberi John Thomas Howell 1927-7-24 2820 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  CAS-BOT-BC263020  Eriogonum thurberi John Thomas Howell 1927-6-6 2452 Orange Santa Ana River bottom, Santa Ana Canon [Canyon] 152 Comment
  POM357957  Eriophyllum confertiflorum F. R. Fosberg 1931-6-21 5138 Orange Silverado Canyon. Santa Anita Mts. Comment
  UCD132115  Eriophyllum confertiflorum R. Townsend 1939-3-29 163 Orange Lower Telegraph Canyon. Comment
  UCR106286  Eriophyllum confertiflorum B. G. Pitzer, M. Georgiady 1997-4-5 3073 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
  IRVC26745  Eriophyllum confertiflorum Mark A. Elvin 2004-6-18 3521 Orange UCI Arboretum Southern Coastal 15 Comment
  UC507177  Eriophyllum confertiflorum var. confertiflorum L. M. Booth 1932-5-12 1042 Orange Newport Bay Comment
  RSA583212  Erodium brachycarpum R. E. Riefner Jr. 1998-4-17 95 -72 Orange San Clemente State Beach. Comment
  UCR191367  Erodium cicutarium A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34622 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
  RSA697438  Erysimum capitatum R. H. McArthur 1934-3-25 s.n. Orange Above forks of Black Starr & Santiago Creek bottom Comment
  CDA25634  Eschscholzia californica A. C. Sanders, Fred M. Roberts, A. O Neal 2008-5-9 35308 Orange Peninsular Range; Santa Ana Mountains; Weir Canyon, along fire line/bulldozer cut, c. 1.5 miles east of Walnut Canyon Reservoir. Comment
  UCSB18078  Eschscholzia californica Shaw, Merrilee 1963-4-10 Orange Fernlead Drive, at intersection with Bayshore Drive, 1/2 mile S of U.S. Highway 101, Corona del Mar 24 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
  IRVC27878  Eucalyptus citriodora A. C. Sanders, Mark A. Elvin 2003-10-12 27312 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  UCR198527  Eucalyptus erythrocorys R. E. Riefner Jr. 2007-9-27 07- 414 Orange South Coast, city of Laguna Niguel, along Forbes Road near Crown Valley Parkway, west of Hwy I-5 Comment
  UCR132571  Eucalyptus megacornuta Robert DeRuff 2001-4-16 527 Orange Southern Coast, Newport Back Bay, Shellmaker Island 1 Comment
  RSA753034  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge. 320 Comment
  UCR197691  Eucalyptus sideroxylon A. C. Sanders, Fred M. Roberts 2008-9-18 36077 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  UCR182895  Eucalyptus utilis Dean Kelch 2006-12-9 06 .538 Orange Along Newport Back Bay Dr. in side canyon 6 Comment
  UCR191478  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-4-8 34750 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCR78042  Eucrypta chrysanthemifolia Scott D. White 1993-4-7 1198 Orange Laguna Mtns., Laguna Canyon, E side of Laguna Canyon Road (Hwy 133), above Hillies Lane. (Thomas Bros. Orange County Map: F-3 on 33A). Comment
  SD220055  Euphorbia albomarginata Mark A. Elvin 2004-5-2 3428 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  IRVC25153  Euphorbia maculata Fred M. Roberts 1986-9-3 3133 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  SD152866  Euphorbia peplus Steve Boyd, Tim Ross 1992-5-19 7439 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness area. Western edge of wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstreem to confluence with Aliso Canyon (mak 1/06) 270 Comment
  UCR193325  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 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
  UCSB56679  Euphorbia peplus Roberts, Jr., Fred 1984-2-4 Orange South Laguna; Aliso Canyon near mouth, 0.7 km. WNW Aliso Peak 15 Comment
  RSA734349  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  RSA734598  Euphorbia polycarpa A. C. Sanders, Fred M. Roberts 2008-5-6 35228 Orange Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin. 216 Comment
  UCR191355  Euphorbia polycarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34642 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  RSA0104833  Euphorbia polycarpa var. polycarpa A. S. Boughey 140 Orange Santa Ana Mountains: Ortega Hwy., ca 1 mi east of San Juan Guard Sta. Comment
  RSA0104828  Euphorbia polycarpa var. polycarpa A. S. Boughey 1968-4-23 211 Orange Santa Ana Mountains: Black Star Canyon; 1/2 mi. below Hidden Ranch. Comment
  UCR210359  Euphorbia serpillifolia subsp. hirtula T. B. Salvato, Billy Deane 2006-10-16 1930 Orange South Coast, Irvine, San Diego Creek flood control channel, between Michelson Drive and the 405 FWY 12 Comment
  JEPS52425  Euphorbia spathulata Alice King Apr 1908 Orange Santa Ana Mts. Comment
  RSA732155  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Santa Ana Mtns.: Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 1200 Comment
  UCR191012  Euphorbia spathulata A. C. Sanders, Fred M. Roberts 2008-4-22 35028 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  RSA151085  Euthamia occidentalis Peter H. Raven 1961-10-15 16856 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  RSA234503  Euthamia occidentalis James Henrickson 1970-9-5 5343 Orange 3 miles NW of Huntinton Beach; NW of Bolsa Chica Salt Marsh. Sea level. 0 Comment
  RSA942  Euthamia occidentalis J. T. Howell 1927-10-22 765 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  UCR193048  Festuca arundinacea 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 below Modjeska Canyon confluence 355 Comment
  CLARK-A1528-4649  Festuca californica John C. Roos 1930-5-20 3237 Orange Capistrano Beach Comment
  UCSB47949  Festuca microstachys Roberts, D. 1980-5-3 Orange .25 km West Trabuco Peak; on Main Divide Truck Trail 1340 Comment
  CAS-BOT-BC487558  Ficus microcarpa R. E. Riefner, Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill AVe. bridge E of 405 Freeway northbound lane 31 Comment
  CAS-BOT-BC502075  Ficus microcarpa R. E. Riefner, Jr. 2015-8-30 15 -379 Orange City of Anaheim, Pearson Park, SE section of park, N of N. Helena St. and W. Cypress St., near jct of N Lemon St. and W. Cypress T. 44 Comment
  RSA0116289  Ficus microcarpa R. E. Riefner Jr. 2014-7-13 14 -222 Orange City of Irvine, S side of Red Hill Ave. bridge E of 405 Freeway north-bound lane. 31 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
  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
  IRVC28774  Foeniculum vulgare Alyssa J. Lai 2006-2-4 1 Orange San Joaquin Marsh; NW Edge of Marsh Southern Coastal 3 Comment
  CAS-BOT-BC63074  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange Common near Yaeger Mine, upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  CAS-BOT-BC63075  Frangula californica subsp. californica Reid Moran 1975-7-18 22596 Orange Common in the bottom of upper Trabuco Canyon, Santa Ana Mountains. 725 Comment
  SD120875  Frangula californica subsp. californica Reid Moran 1975-7-18 22598 Orange near Yeager Mine, upper Trabuco Canyon, Santa Ana Mountains 725 Comment
  SD152766  Frangula californica subsp. tomentella Steve Boyd, Tim Ross 1992-5-19 7435 Orange Santa Ana Mountains, San mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon 274 Comment
  RSA391394  Frankenia grandifolia Albert J. Perkins 1909-7-4 s.n. Orange Arch Beach. Canon near beach. Comment
  RSA609140  Frankenia grandifolia Louis C. Wheeler 1932-6-22 844 Orange Newport Bay. 1 Comment
  RSA0055057  Frankenia grandifolia Jim Shevock 1970-10-19 522 Orange Newporft Back Bay. 3 Comment
  HSC8343  Frankenia salina J. W. Johnson 1961-4-2 Orange Newport Beach, along upper Newport Bay Comment
  IRVC1371  Frankenia salina Dorleene Van Gorden 1965-5-1 s.n. Orange Newport Back Bay Southern Coastal Comment
  IRVC15189  Frankenia salina Helen Smith 1975-4-21 s.n. Orange Upper Newport Bay; near opening of Delhi Channel. Southern Coastal Comment
  IRVC24106  Frankenia salina Fred M. Roberts 1985-9-6 2220 Orange Laguna Beach; Sycamore Hills along Laguna Cyn Rd; N of jct with El Toro Road. Southern Coastal 75 Comment
  IRVC24236  Frankenia salina Fred M. Roberts, Gordon A. Marsh 1985-10-25 2495 Orange Santa Ana River; adjacent to Huntington Beach, 0.2km S Victoria St. bridge. Southern Coastal 2 Comment
  JEPS30094  Frankenia salina L. M. Booth 1932-5-12 1037 Orange Newport Bay Comment
  RSA768507  Frankenia salina Justin M. Wood 2009-12-1 1394 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  SFV20019  Frankenia salina A. Dittmer, S. Dark 2004-10-3 73 Orange Bolsa Chica wetlands. North side of public parking lot off Highway 1. Comment
  UC1122123  Frankenia salina A. Lewis Apr 1934 390 Orange Celery Corona Quad. 0 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
  RSA1068  Fraxinus dipetala J. T. Howell 1927-7-26 482 Orange Claymine Canyon near Sierra Peak. 213 Comment
  UCR139446  Fraxinus velutina var. coriacea E. R. Johnson 1936-4-27 7781 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden, Santa Ana River SW of Mexican Village 122 Comment
  RSA652040  Fremontodendron californicum L. M. Anderson 1948-2-11 s.n. Orange On property at Rt 1, Box 239A, Santa Ana 183 Comment
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Oct 28 2014
  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
  RSA1491  Fritillaria biflora E. R. Johnson 1929-4-11 s.n. Orange Sierra Peak Trail. Comment
  CAS-BOT-BC422452  Fumaria officinalis Ira L. Wiggins 1966-2-16 20445 -A Orange On N. side of Yorba Linda Blvd., near corner of Associated Road, Fullerton. Comment
  POM265787  Fumaria parviflora Vesta Newsom Griffith 1943-3-21 s.n. Orange Near Katella School, 2.5 miles southwest of Anaheim Comment
  CHSC106536  Funastrum cynanchoides var. hartwegii Robt. Allen; Alison Linden 2007-5-17 Orange Irvine, Turtle Rock community, Chaparral Park, due N of Turtle Rock Dr, due E of Highgate terrace. UTM Zone 11S; 3722013N 0424400E. 136 Comment
  RSA761937  Funastrum cynanchoides var. hartwegii Richard Newell 2005-8-23 s.n. Orange San Joaquin Hills, Crystal Cove State Park, about one-quarter mile (0.23 mi) above the parking lot s upper gate & trail head to the park. 88 Comment
  LA208397  Galium angustifolium Norman C. Cooper; 1944-6-4 Orange San Juan Canyon 304 Comment
  RSA679222  Galium angustifolium Fred M. Roberts 2003-6-25 5949 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 12 2007
  RSA680560  Galium angustifolium Scott D. White 2003-3-21 8816 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  UCR247904  Galium angustifolium 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 km ENE Silverado School and 1.4 km up stream Black Star Road crossing. 320 Comment
  POM367705  Galium angustifolium subsp. angustifolium Albert J. Perkins 1913-4-29 s.n. Orange Trabuco Canyon. Comment
  SBBG47439  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Cyn 304 Comment
  CAS-BOT-BC94862  Galium nuttallii subsp. nuttallii R. C. Wenk 2008-3-24 722 Orange Chino Hills S.P., South Ridge Road west of San Juan Hill, going W from Equestrian Staging Area 441 Comment
  RSA542398  Galium parisiense Fred M. Roberts, K. Keane 1988-5-26 4013 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA562824  Galium porrigens Steve D. Boyd, Tim S. Ross 1992-5-20 7457 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon along canyon floor from crossing Lucas Canyon Trail., Upstream 1/4 mile to spur trail leading to old mining habitations in side canyon. 305 Comment
  JEPS6547  Galium trifidum var. pacificum Lawrence M. Booth 1932-7-4 1244 Orange Newport Bay Comment
  RSA53  Gastridium phleoides J. T. Howell 1927-6-17 163 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UCR194863  Gastridium ventricosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35321 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 0.3 mi. west of Eastern Transportation Corridor (Hwy 241) and 1.45 mi. east of south end of Walnut Canyon Reservoir 335 Comment
  UCR209347  Gaura coccinea Fred M. Roberts 2008-4-15 6898 Orange Lomas de Santiago, Loma Ridge, Lower Hicks Canyon, east ridge, Conservation Trail, 1.6 km east-southeast of Rattlesnake Reservoir Dam and 2.6 km west-southwest of Bee Peak, Irvine Ranch Conservancy 183 Comment
  CDA5174  Gaura drummondii Margaret Bellue 1943-9-1 Orange Sterns, 3 miles east of Yorba Linda. 0 Comment
  POM248098  Gaura odorata E. Johnson 1939-8-5 s.n. Orange Brea. Comment
  SEINET10728265  Gazania David B. Dunn 1971-8-13 Dunn 18117 Orange Cultivated plants vicinity of Laguna Beach. Comment
  RSA0035858  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-12-5 12 -588 Orange city of Dana Point, Dana Point Harbor, Dana Harbor Drive near Cove Road 9 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
  RSA139631  Gilia angelensis John Ingram 1960-3-29 269 Orange 1/2 mile below O'Neill Park, Trabuco Canyon. Comment
  UCR192503  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34550 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA758897  Gilia capitata A. C. Sanders, T. B. Salvato 2008-5-13 35339 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
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. 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
  RSA588713  Githopsis diffusa subsp. candida Fred M. Roberts 1990-5-22 4637 Orange Santa Ana Mountains; Upper Hot Springs canyon, just west of Falcon Group Camp, 1.9km ESE Los Pinos Peak. 994 Comment
  RSA734849  Gnaphalium californicum A. C. Sanders, Mitch Provance 2008-5-20 35411 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  RSA663155  Gnaphalium canescens subsp. beneolens R. E. Riefner 2000-8-8 20 -724 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
  POM202609  Gnaphalium chilense L. M. Booth 1932-7-19 1275 Orange Bolsas Marsh. Comment
  RSA1303  Gnaphalium leucocephalum J. T. Howell 1928-9-6 1208 Orange Santa Ana River, Rancho Santa Ana. 152 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
  POM201510  Gnaphalium microcephalum L. M. Booth 817 Orange Santa Ana Canyon Comment
  RSA734895  Grindelia camporum A. C. Sanders 2008-5-28 35430 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon 264 Comment
  RSA800021  Grindelia camporum Justin M. Wood 2011-6-28 4305 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. Just W of parking area. 25 Comment
  RSA17586  Grindelia camporum var. bracteosa C. B. Wolf 1936-7-8 8101 Orange Coast Hwy, Western end of Newport Bay. 9 Comment
  UCR230829  Grindelia camporum var. camporum Dick Newell, Don Millar 2011-6-14 174 Orange South Coast, San Joaquin Hills, upper Buck Gully near Newport Beach 134 Comment
  CAS-BOT-BC305206  Grindelia hirsutula Carl B. Wolf 1932-7-2 3810 Orange Olinda. Valencia Ave., opposite Olinda Pilgrim Church 152 Comment
  CDA6157  Guizotia abyssinica Robert L. Pope 1967-6-13 Orange 0 Comment
  UCD132608  Gutierrezia californica P. B. Kennedy 1925-1-12 s.n. Orange Irvine Range. Comment
  UCR168327  Gutierrezia californica P. H. Raven 1961-10-15 16853 Orange Santa Ana Canyon Rd, just west of State Highway 55, at west end of Peralta Hills 137 Comment
  LA203632  Gutierrezia sarothrae John Thomas Howell; 1927-7-22 2816 Orange Santa Ana Canyon Comment
  CLARK-A1528-1072  Haplopappus venetus subsp. vernonioides John C. Roos 1936-10-13 1531 Orange Newport Beach Comment
  UCR113457  Harpagonella palmeri R. E. Riefner Jr. 2000-4-27 20- 391 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  RSA0066589  Harpagonella palmeri Fred M. Roberts 1988-3-15 3870 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 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
  RSA0002527  Hasseanthus elongatus L. R. Abrams 1901-06 1785 Orange San Joaquin Hills Comment
  CAS-BOT-BC307267  Hazardia squarrosa var. grindelioides John Thomas Howell 1927-10-22 3160 Orange N. side of Santa Ana Canyon 304 Comment
  UC1424954  Hazardia squarrosa var. grindelioides C. W. Tilforth 1972-8-20 624 Orange County Rd. S 19 between Cooks Corner and O'Neill Park Comment
  RSA743465  Hedera helix Fred M. Roberts, Carol A. Roberts 2008-9-28 7115 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  RSA359731  Hedypnois cretica C. B. Wolf 1938-5-2 9406 Orange City of Fullerton, Francis street, 1200 block E side in vacant lot. 61 Comment
  RSA751327  Hedypnois cretica A. C. Sanders, Fred M. Roberts 2008-5-6 35261 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
  SEINET11196714 Image available Hedypnois cretica D. Atwood 1993-3-28 17716 Orange Bolsa Chica Ecological Reserve, California Dept. of Fish and Game. Comment
  SD247594  Hedypnois cretica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49670 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  CAS-BOT-BC309484  Helenium puberulum B. Pitzer; T. Tennant 1997-11-8 3363 Orange Crystal Cove State Park, along Moro Canyon Trail, from beginning to a point ca. 1.75 mi. up the canyon 85 Comment
  IRVC15334  Helenium puberulum A. S. Boughey 1968-7-9 395 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  JEPS35550  Helenium puberulum L. M. Booth 1932-7-9 1285 Orange Bolsas Creek Comment
  UCR103708  Helenium puberulum B. G. Pitzer, T. Tennant 1997-11-8 3363 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
  CAS-BOT-BC305447  Helianthus annuus John Thomas Howell 1927-7-27 2846 Orange In hills on north side of Santa Ana Canyon 152 Comment
  POM201743  Helianthus annuus subsp. lenticularis L. M. Booth 1932-6-29 1230 Orange Newport Bay. 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
  POM256708  Helianthus gracilentus W. Pequegnat 1940-6-15 s.n. Orange Holy Jim Trail 1220 Comment
  RSA7324  Helianthus gracilentus E. R. Johnson 1933-7-6 5167 Orange 1/2 mile south of Mexican houses, Rancho Santa Ana 122 Comment
  RSA92427  Helianthus gracilentus F. W. Peirson 1923-5-5 4147 Orange Trabuco Canyon, Santa Ana Mts. 549 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
  CLARK-A1528-238  Hemizonia fasciculata Cesareo Perez 1971-5-18 19 Orange Villa Park Comment
  IRVC17976  Hemizonia fasciculata K. Marsh 1980-5-8 Orange Pelican Point. Crystal Cove State Park Comment
  POM202163  Hemizonia fasciculata L. M. Booth 1932-5-12 1038 Orange Newport Bay Comment
  POM56177  Hemizonia fasciculata H. M. Hall 1906-6-19 7411 Orange Gypsum, Santa Ana Canyon 122 Comment
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Sep 4 2011
  RSA627031  Hemizonia fasciculata Scott D. White 1998-5-16 6509 Orange E Coyote Hills, Oil field at NW corner of Bastanchury and State College. 122 Comment
  RSA678737  Hemizonia fasciculata Fred M. Roberts, Carol A. Roberts, Robert Allen 2003-5-11 5858 Orange Dana Point Headlands: hilltop, 0.6km SSW Richard Henry Dana School south of Pacific Coast Highway and north of Scenic Drive. 73 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
  RSA682919  Hemizonia paniculata Scott D. White, Amanda Duchardt 2003-5-1 9147 Orange Santa Ana Mtn Foothills; slopes above the west side of Canada Gobernadora and adjacent small canyon to the west. 76 Comment
  RSA684401  Hemizonia paniculata Scott D. White, Brian Leatherman 2003-10-30 9847 Orange Foothills; Oso Parkway crossing over Chiquita Canyon. 198 Comment
  UC537059  Hesperocnide tenella P. A. Munz 1934-3-26 13134 Orange Newport Beach 6 Comment
  POM201868  Heteromeles arbutifolia L. M. Booth 1932-6-7 1166 Orange Newport Lagoon. Comment
  SEINET10685372  Heteromeles arbutifolia Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR192076  Heteromeles arbutifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35277 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA0072405  Heteromeles arbutifolia Percy C. Everett, E. R. Johnson 1937-11-30 9380 Orange Santa Ana Mts., head of Claymine Canyon on north slopes of Sierra Peak. 762 Comment
  UC1543194  Heterotheca grandiflora Donald G. Nelson 1935-3-23 186 Orange sand pit near dump just s E. Orangethorpe Ave.; East Fullerton Comment
  UC912305  Heterotheca grandiflora Herbert L. Mason 1926-4-25 2901 Orange 5 mi s Laguna Comment
  RSA752894  Heterotheca sessiliflora subsp. echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35973 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCD150988  Hieracium argutum D. S. Park 2010-4-25 31 Orange Whiting Ranch Wilderness Park, along trail. 254 Comment
  RSA743501  Hirschfeldia incana Fred M. Roberts 2008-7-10 7077 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC207960  Hoffmannseggia glauca Margaret K. Bellue 1933-6-7 s.n. Orange Unspecified Comment
  CAS-BOT-BC402179  Hoita macrostachya R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49564 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  POM201849  Hoita macrostachya L. M. Booth 1932-7-1 1236 Orange Anaheim Marsh 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
  SBBG120959  Hoita macrostachya A. C. Sanders, F. M. Roberts, M. Balk 2006-7-20 33029 Orange San Juan Cyn, from Lower San Juan Picnic Area to ca. 1 mi downstream, parallel to Hwy 74 and near Riverside Co line 366 Comment
  RSA488126  Holodiscus discolor Fred M. Roberts 1985-7-26 2091 Orange Main Divide Truck Trail, Upper Horsethief Canyon watershed, 2.3 km SE Trabuco Peak 1223 Comment
  RSA663167  Holodiscus discolor R. E. Riefner 2000-6-22 20 -574 Orange NCCP North Ranch Policy Plan Area, NE property; along National Forest boundary, at powerline. 756 Comment
  UC527614  Holodiscus discolor B. D. Stark 1931-6-10 2248 Orange n end of Santa Ana Mountains, East Fork of Claymine Canyon East Fork of Claymine Canyon; Santa Ana Mountains, East Fork of Claymine Canyon 304 Comment
  UC592904  Holodiscus discolor C. B. Wolf and E. R. Johnson 1933-11-3 5527 Orange on road to Santaiago Peak, Santa Ana Mountains, Main Divide Motorway, Modjeska Peak Santaiago Peak; Santa Ana Mountains, Main Divide Motorway, Modjeska Peak 1524 Comment
  CAS-BOT-BC150003  Holodiscus discolor var. discolor B. D. Stark 1931-6-10 2248 Orange East fork of Claymine Canyon, north end of Santa Ana Mountains 304 Comment
  RSA542404  Holodiscus discolor var. franciscanus Bernard Jaroslow 1989-5-29 B- 24 Orange Along trail just below truck trail, in the canyon of Upper Santiago Creek, above deserted mines Comment
  UCSB47956  Hordeum brachyantherum subsp. californicum Roberts, Dar 1980-5-4 Orange .8 km North Northern tip of Thunderbird Homes, Dana Point 61 Comment
  RSA642527  Hordeum intercedens D. E. Bramlet 1998-5-25 2627 Orange 120m north of the Newport Beach Library and 61m west of McArthur Blvd. 914m south of San Miguel Drive., Laguna Beach 7.5 USGS Quadrangle. UTM 11S 04 19 210m E X 37 18 860m N. Eleation 49 m. 15 Comment
  RSA642532  Hordeum intercedens D. E. Bramlet 1999-6-11 2808 Orange On slope 76m east of Cristianitos Creek and 488m northeast of the intersection of Avenida Pico and Cristianitos Road., UTM 11S 04 47 340mE X 37 02 080mN. 79 Comment
  RSA704072  Hordeum intercedens D. E. Bramlet, Fred M. Roberts 2003-5-1 3423 Orange Donna O'Neill Reserve: Along the north ridge trail, 305m west of Cristianitos Rd. and 1 km north of the E-W access road. 128 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
  UCR160532  Hordeum marinum subsp. gussoneanum Robert DeRuff 1993-4-2 444 Orange South Coast, Newport Back Bay, Santa Ana Heights area, coastal end of 23rd Street 15 Comment
  UCR192998  Hordeum murinum A. C. Sanders, T. B. Salvato 2008-5-13 35380 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
  RSA543972  Hordeum murinum subsp. leporinum Steve Boyd, Orlando Mistretta 1991-5-9 6202 B Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 Comment
  IRVC20520  Horkelia cuneata subsp. puberula Fred M. Roberts 1983-9-26 1114 Orange Lion Canyon, Chiquito Basin Trail, 3.3km NNE Lower San Juan Picnic Ground; 4.3km SSE Los Pinos Peak. Santa Ana Mountains 810 Comment
  POM224742  Horkelia cuneata subsp. puberula Philip A. Munz 1936-4-20 14606 Orange Laguna Beach, Mt. Olympus 152 Comment
  POM305048  Horkelia cuneata subsp. puberula Henry J. Ramsey 1937-1-9 374 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
  CAS-BOT-BC537311  Horkelia cuneata var. puberula H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  CAS-BOT-BC537312  Horkelia cuneata var. puberula Philip A. Munz 1936-4-20 14606 Orange Mt. Olympus, Laguna Beach 152 Comment
  RSA759250  Hulsea heterochroma Robt Allen, G. Victor Leipzig 2008-6-20 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs Forest Gate, 0.8 road miles down from junction with Main Divide Truck Trail. Southwestern end of short road spur. 1313 Comment
  JEPS17473  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  CAS-BOT-BC312647  Hymenothrix loomisii 1943-12-1 s.n. Orange Costa Mesa Comment
  RSA458246  Hypericum formosum var. scouleri Claire Kibbe 1936-07 19972 Orange Santa Ana Canyon. Comment
  UCR191464  Hypochaeris glabra A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34650 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 330 Comment
  UCR220958  Hypochaeris glabra Dick Newell, Don Millar 2010-4-20 15 Orange South Coast Region, top of Serrano Ridge, 1 km west of the Nix Center/Laguna Canyon Rd. 229 Comment
  UCSB52912  Hypochaeris radicata Roberts, Fred; Marsh, K. 1983-5-13 Orange Laguna Beach; Sycamore Hills, central ridge, 1.3 km. NE jct. El Toro and Laguna canyon Rds.; 5.6 km. ESE Signal Peak 155 Comment
  UCR223956  Isocoma menziesii var. sedoides Fred M. Roberts 2008-10-9 7123 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, base of cliff adjacent to Dana Strands Beach, 0.8 km west northwest of Marine Institute, Dana Point Harbor 3 Comment
  RSA5239  Isocoma menziesii var. vernonioides C. B. Wolf 1932-9-13 4027 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
  RSA5380  Isocoma menziesii var. vernonioides B. D. Stark 1932-12-30 4459 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 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
  RSA658217  Isomeris arborea T. A. Daubert 1991-5-26 664 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  UC72699  Isomeris arborea E. A. Zumbro 1902-1 372 Orange Comment
  RSA695718  Isomeris arborea var. globosa Keith E. Hoffmaster 1927-4-5 s.n. Orange Near Newport, Santa Ana Mountains Comment
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Aug 27 2011
  POM361340  Jaumea carnosa F. R. Fosberg 1930-7-10 3180 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  CAS-BOT-BC101919  Juglans californica C. B. Wolf 1934-9-21 6141 Orange Lower end of Brea Canyon, Puente Hills 182 Comment
  CAS-BOT-BC538089  Juglans hindsii R. E. Riefner, Jr. 2015-11-21 15 -452 Orange City of Orange, Irvine Regional Park, SW end of Park, S of Peters Canyon Rd., general vicinity of the Orange Cunty Zoo 187 Comment
  SD253480  Juglans hindsii R. E. Riefner Jr. 2010-9-8 10 121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mile S of El Toro Road on E side of Laguna Canyon Road. 74 Comment
  UCR210312  Juglans hindsii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37203 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR242862  Juglans hindsii R. E. Riefner Jr. 2011-9-10 11- 124 Orange Santa Ana Canyon, Hwy I-91 northbound, south side of fwy, within 100 ft of the Riverside County line 127 Comment
  RSA683232  Juncus acutus Scott D. White, Matt Carlton 2003-11-20 9861 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  RSA788970  Juncus macrophyllus Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  SEINET3880695  Juncus patens A. C. Sanders, Mitch Provance 2008-5-20 35399 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, mouth of Hangman Tree Canyon just above confluence with Santiago Creek Canyon, c. 1/2 mile below Modjeska Canyon confluence (El Toro 7.5' Q.).; 0 366 Comment
  RSA663202  Juncus rugulosus R. E. Riefner 2000-3-26 20 -151 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 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
  RSA749054  Juncus textilis A. C. Sanders, Fred M. Roberts 2008-8-7 35994 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate 185 Comment
  UCR18360  Juncus textilis O. F. Clarke, Ileana Leil, Robert Lumley (park foreman) 1977-11-12 s.n. Orange Brea-Olinda Regional Wilderness Park, south of Brea. Small, moist canyon near the center of the park Comment
  RSA794757  Juncus torreyi Justin M. Wood, Dustin M. Ray 2010-10-1 2774 Orange Santa Ana Canyon: Santa Ana River plus/minus 1 mi downstream of Gypsum Canyon Bridge, just upstream of large commercial development. Near drain outflow from Flood Control Levee on south side of channel. 110 Comment
  RSA101  Juncus xiphioides J. T. Howell 1927-7-18 427 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA748271  Juncus xiphioides A. C. Sanders, Fred M. Roberts 2008-6-17 35510 Orange Middle section of Weir Canyon, SSE of Walnut Canyon Reservoir. 225 Comment
  POM4196  Keckiella antirrhinoides I. M. Johnston 1918-5-26 s.n. Orange Hills south of Ontario 1 mile west of Santa Ana Canon.. 366 Comment
  UC1018202  Keckiella antirrhinoides J. Warren 1952-4-5 Orange Santa Ana Canyon Comment
  UCR270352  Keckiella antirrhinoides Dick Newell, Don Millar 2016-3-29 422 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; Cactus Trail, 0.1 mile west of Limestone Ridge Trail 399 Comment
  UC1618100  Keckiella antirrhinoides var. antirrhinoides Donald G. Nelson 1935-7-6 259 Orange San Juan Canyon Comment
  SD247733  Keckiella antirrhinoides var. antirrhinoides R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49658 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  RSA34536  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Canyon. 305 Comment
  RSA564474  Keckiella cordifolia B. Pitzer, S. Hemstreet 1992-5-27 1959 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
  SBBG104112  Keckiella cordifolia B. Pitzer, S. Hemstreet 1992-5-27 1959 Orange USFS Rd 3S04 to Blue Jay Group Cmpgrd, off St Hwy 74, ca. 2 air mi W of El Cariso Cmpgrd 762 Comment
  UCR228799  Keckiella cordifolia Dick Newell, Don Millar 2011-5-3 140 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA7393  Keckiella ternata subsp. ternata Carl B. Wolf 1933-8-24 5405 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  JEPS11336  Kickxia elatine Frank W. Peirson 1927-9-25 7676 Orange flats below Wintersberg Comment
  SD134374  Kickxia elatine Craig Reiser 1991-7-1 Orange Live Oak Road near the foothills of the Santa Ana Mountains Comment
  RSA731985  Koeleria macrantha A. C. Sanders, Fred M. Roberts 2008-4-8 34773 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 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
  CDA15831  Kyllinga brevifolia B. Butcher 1999-11-17 PDR 1237873 Orange Southern California; Santa Ana. 0 Comment
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Oct 27 2010
  RSA234473  Lactuca serriola James Henrickson 1970-7-25 5065 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March. 0 Comment
  RSA752818  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  UC729889  Lactuca serriola Carl B. Wolf 1932-7-7 3839 Orange s edge of field 100 ft w Hansen Road; Bryant Ranch, Bixby Ave. 48 Comment
  RSA12634  Lactuca serriola C. B. Wolf 1934-8-16 6065 Orange Bryant Ranch E of Long Beach, Bixby Ave 100 ft and E of SW corner NW/4 NE/4, S31. 6 Comment
  UC485371  Laennecia coulteri C. F. Millspaugh 1920-1-19 4602 Orange Middle Ranch Comment
  UCR7865  Lagophylla ramosissima O. F. Clarke 1968-7-28 s.n. Orange Santa Ana Mtns, Between Los Pinos Job Corps Camp and locked forestry gate on road to Santiago Peak. 1037 Comment
  CAS-BOT-BC516763  Lagunaria patersonia R. E. Riefner, Jr. 2011-6-29 11 -76 Orange City of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Dr. and Fairview St. 1 Comment
  UCR240187  Lagunaria patersonia R. E. Riefner Jr. 2011-6-29 11- 76 Orange South Coast, city of Laguna Beach, general area of Shaw's Cove, vicinity of Cliff Drive and Fairview Street 1 Comment
  UCD63304  Lamarckia aurea W. W. Robbins 1931-5-11 2202 Orange Santa Ana. Comment
  UCD63319  Lamarckia aurea A. A. Beetle 1942-4-19 3095 Orange Rt. 101. 2 miles north of Laguna Beach. Comment
  UCR191420  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-4-8 34769 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
  RSA699157  Lamarckia aurea Rankin s.n. Orange Newport Beach. Comment
  SEINET11678604  Lamarckia aurea J. Bright, Wyman, C. 1933-1 8223 Orange around Laguna Beach 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
  CAS-BOT-BC338902  Lasthenia californica C. B. Wolf 1931-3-6 1847 Orange 1 mile above Trabuco Oaks, Trabuco Canyon, West slope of the Santa Ana Mts. 518 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
  RSA749837  Lasthenia coronaria D. Bramlet, Jim Harrison 2008-4-3 4149 Orange South Bee Canyon, Bowerman landfill site. 1.2 km S of the Bee Cyn. access road, and 122 m W of the active landfill. Comment
  UCR203976  Lasthenia coronaria D. E. Bramlet, J. E. Harrison 2008-4-3 4149 Orange Peninsular Range; Santa Ana Mountains, South Bee Canyon, Bowerman landfill site, 1.2 km south of the Bee Canyon access road, and 122 m west of the active landfill 224 Comment
  SD27972  Lasthenia glabrata subsp. coulteri Carl B. Wolf 1932-3-8 2691 Orange Sunset Beach, near southern limits of City. Comment
  SD73477  Lasthenia glabrata subsp. coulteri C. B. Wolf 1935-3-24 6295 Orange 1.0 mile north of Buena Park. Comment
  POM294108  Lasthenia gracilis Lyman Benson 1946-4-27 12056 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  UC149282  Lasthenia gracilis LeRoy Abrams 1903-4-18 3265 Orange near Capistrano; Trabuco arroyo Comment
  RSA92917  Lasthenia gracilis F. W. Peirson 1924-5-31 4667 Orange 5 miles southeast of Laguna Beach. Comment
  POM50628  Lathyrus vestitus subsp. alefeldii L. R. Abrams 1901-06 1813 Orange Trabuco Canyon Comment
  RSA406637  Lathyrus vestitus subsp. alefeldii M. B. Dunkle 1935-3-3 4353 Orange San Juan Canyon. 457 Comment
  RSA405743  Lathyrus vestitus subsp. alefeldii Anstruther Davidson 1923-4-1 s.n. Orange Trabuco Canyon. Comment
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Jan 11 2016
  IRVC11716  Lathyrus vestitus subsp. laetiflorus B. T. Gittins 1963-4-18 171-D Orange Silverado Canyon. Santa Ana Mountains Comment
  UCSB12895  Lathyrus vestitus var. alefeldii 1962-3-9 Orange 12.2 miles east of San Juan Capistrano on State 74 243 Comment
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Apr 10 2016
  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
  RSA799619  Lavatera cretica Justin M. Wood 2011-4-12 3662 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  SD218972  Layia platyglossa Bramlet, Jim Harrison 2008-4-3 4151 Orange Santa Ana Mountains region; South Bee Canyon Bowerman landfill site, 1.2 km south of the Bee Canyon access road and 122 m west of the active landfill. Comment
  RSA17056  Layia platyglossa subsp. campestris Percy C. Everett 1935-4-15 6462 Orange 8/10 mile E of Atwood on S side of Santa Fe RR. 107 Comment
  RSA92179  Layia platyglossa subsp. campestris F. W. Peirson 1925-4-11 5747 Orange 5 miles south of Laguna Beach. Comment
  RSA759148  Leontodon saxatilis Robt Allen 2008-4-9 s.n. Orange Irvine, Irvine Valley College, near N entrance to Student Services building. 53 Comment
  SD152820  Lepechinia cardiophylla Steve Boyd, Kyle Boyd 1992-7-9 7653 Orange Northern Santa Ana Mountains, 3.5 miles south of junction of Main Divide and Skyline Roads. Comment
  UC1124486  Lepechinia cardiophylla H. E. Norton 1931-3-30 41 Orange Ridge between Ladd and East Fork Canyons 1036 Comment
  RSA697417  Lepidium didymum J. R. Bruff 1927-3-22 2 -P Orange Near Newport. Comment
  RSA682597  Lepidium lasiocarpum Scott D. White, Amanda Duchardt 2003-3-27 8861 Orange Canyon bottom and west facing slopes above Canada Gobernadora. 91 Comment
  UCR237845  Lepidium lasiocarpum Mark A. Elvin 2003-2-2 2274 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC1102  Lepidium lasiocarpum C. Hooven 1965-4-1 Orange Jamboree Rd. Newport Beach Comment
  RSA697450  Lepidium lasiocarpum Snow 1929-2-25 44 Orange E. of Stanton. Comment
  JEPS53664  Lepidium lasiocarpum var. lasiocarpum L. M. Booth 1932-5-24 1084 Orange Newport Bay Comment
  IRVC25562  Lepidium nitidum Fred M. Roberts 1989-3-17 4209 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA429969  Lepidium nitidum Albert J. Perkins 1913-3-6 s.n. Orange Near San Juan Hot Springs, Orange County Comment
  IRVC1108  Lepidium nitidum B. Mawdsley 1965-3-24 Orange Corona del Mar, Narcissus and 5th. Newport Beach Comment
  RSA184171  Lepidium nitidum I. L. Wiggins 1966-2-12 20431 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  UCD134015  Lepidospartum squamatum J. C. Elmore 1929-10-1 2165 Orange orange. Comment
  UCR58731  Lepidospartum squamatum Reid Moran 1975-11-21 22741 Orange Santa Ana Mtns., bottom of lower Trabuco Canyon Comment
  UCSB48209  Lepidospartum squamatum Roberts, Jr., Fred 1981-7-8 Orange Rancho Mission Viejo; Calif. Rte. 74, 10 km. by road ENE San Juan Capistrano 101 Comment
  POM202734  Leptochloa fusca subsp. uninervia L. M. Booth 1932-7-18 1262 Orange Costa Mesa, Newport Bay Comment
  RSA696979  Leptodactylon californicum Keith E. Hoffmaster 1927-4-8 s.n. Orange Santa Ana Mountains Comment
  UC1123917  Leptodactylon californicum A. Lewis Mar 1934 360 Orange Silverado Canyon; Cleveland National Forest, Corona Quad., Silverado Canyon Comment
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  RSA764445  Leptosiphon parviflorus Doris Bowers 1971-4-19 1698 Orange Black Star Canyon Indian Site 762 Comment
  RSA773545  Leptosiphon parviflorus Fred M. Roberts 1999-4-26 5197 Orange Lomas de Santiago: Lomas Ridge, tributary to Santiago Canyon Wash on ridge between Limestone Canyon and the wash, 1.4 km SE Silverado School, and 2.7 km N Bolero Lookout. 358 Comment
  OBI82197  Lessingia filaginifolia Andrew C. Sanders, Fred M. Roberts 2008-8-7 35970 Orange Peninsular Range; Santa Ana Mtns.: lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate (Orange/Black Star Cyn. 7.5' Qs.) 185 Comment
  RSA160419  Lessingia glandulifera var. glandulifera J. D. Olmsted 1959-9-22 984 Orange Along industrial waste waters bank from 3 miles clay works just N of Hwy 8-9 miles WSW of Corona, N of Santa Ana Mts. to Santa Ana River 140 Comment
  RSA651793  Leymus condensatus Jack D. Ingwersen 1962-5-14 s.n. Orange Brea Canyon. Comment
  RSA108341  Leymus triticoides Frank W. Gould 1943-4-12 2101 Orange About 7 miles northeast of Anaheim, on sand railroad siding. Comment
  CAS-BOT-BC130580  Lilium humboldtii John Thomas Howell 1927-7-3 2645 Orange Claymine [Canon] Canyon, n. Santa Ana Mts. 304 Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  UCR231358  Lilium humboldtii A. C. Sanders, Kent Beaman 2011-9-27 39911 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  UCSB48192  Lilium humboldtii Roberts, Fred 1981-6-26 Orange Santa Ana Mtns 329 Comment
  RSA771715  Lilium humboldtii subsp. ocellatum Robt. Allen, Richard S. Newell, Roger E. Reinke 2006-6-30 s.n. Orange Santa Ana Mts., Holy Jim Canyon Trail. About 1 mile up trail from forest gate. 609 Comment
  SEINET10804137  Limonium Richard E. Riefner Jr. 2006-8-13 Riefner 06 -391 Orange Upper Newport Bay at Jamboree Rd. Newport Beach. UTM: 11S 0419547E 3723812N. 9 Comment
  UC1789093  Limonium R. E. Riefner Jr. 2005-9-16 05 -667 Orange Upper Newport Bay, E of Bayside Dr. at Big Canyon Creek. 6 Comment
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Jan 7 2016
  CDA23090  Limonium binervosum Mark A. Elvin, D. G. Kelch 2006-12-9 5307 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  POM122839  Limonium californicum var. mexicanum Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA254942  Limonium californicum var. mexicanum C. W. Tilforth 1975-9-6 1042 Orange North-east shoreline of upper bay, Newport Beach. Comment
  RSA701802  Limonium duriusculum Fred M. Roberts 2000-6-5 5338 Orange Yorba Linda, along Hidden Hills Dr. near Sunbeam Lane, on ridge above Box Canyon 376 Comment
  UCR177129  Limonium duriusculum R. E. Riefner Jr. 2002-5-4 02- 99 Orange South Coast, Upper Newport Bay, Jamboree Road at Bayview Dr., edge of Newport Beach Q. 21 Comment
  RSA723491  Limonium duriusculum R. E. Riefner 2005-10-5 5 -707 Orange City of Irvine, Bonita Creek, along La Salud St. near Milano Dr. 9 Comment
  UCR261695  Limonium perezii Dick Newell, Don Millar, Judy Booth 2015-4-15 402 Orange South Coast, city of Newport Beach, North Star Beach, 90 yards NE of Newport Aquatic Center bulding 3 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
  UCR200663  Limonium ramosissimum Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel, Dana Point Highlands, Crown Valley Parkway at Pacific Island Drive 70 Comment
  UCR219807  Limonium ramosissimum 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
  CAS-BOT-BC226776  Linanthus californicus Helen D. Geis 1902-4-1 s.n. Orange Santa Ana River Canon [Canyon] Comment
  RSA749298  Linanthus californicus Fred M. Roberts 1999-4-22 5185 Orange Lomas de Santiago: tributary to Santiago Creek wash along spur road on ridge between Limestone Cyn. and Santiago Creek wash opposite Williams Cyn., 1.9 km SE Silverado Sch. and 2.2 km NNW Bolero Lookout. 395 Comment
  POM49703  Linanthus californicus Helen D. Geis 1902-04 s.n. Orange Santa Ana River Canyon Comment
  RSA618  Linanthus californicus subsp. glandulosus J. T. Howell 1927-6-26 229 Orange Claymine Canyon, near Sierra Peak. 457 Comment
  RSA734640  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34559 Orange Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA734644  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-3-25 34570 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
  RSA753417  Linanthus dianthiflorus D. E. Bramlet 2008-3-31 4137 Orange 223m E of Upper Hicks Haul Rd, Trib. to Limestone Cyn, 1km S of Santiago Cyn Rd. 328 Comment
  UCR5212  Linanthus dianthiflorus Barbara T. Gittins, O. F. Clarke 1966-3-19 894 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA3169  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-8 2694 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  POM364621  Linanthus dichotomus subsp. dichotomus M. B. Dunkle 1935-2-10 4331 Orange El Toro. 152 Comment
  UCR150920  Linanthus floribundus subsp. floribundus Valerie Soza, LeRoy Gross 1999-6-7 481 Orange Santa Ana Mountains, West side of Modjeska Peak, along Main Divide Road 1448 Comment
  UCR193066  Linanthus liniflorus A. C. Sanders, T. B. Salvato 2008-5-13 35337 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
  CLARK-A1528-3481  Linanthus nuttallii subsp. floribundus John C. Roos 1937-5-10 2073 Orange 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
  RSA749524  Linaria canadensis var. texana Fred M. Roberts 2008-4-8 6849 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  UC1419828  Lindernia dubia var. anagallidea G. D. Barbe 1973-8-9 1693 Orange Santa Ana (Tustin); Bordier's Nursery, 7231 Irivne Blvd Comment
  UCR186427  Linum grandiflorum Robert DeRuff 1994-5-16 469 Orange Southern Coast, Newport Beach, Newport Back Bay, south of 23rd St., below a row of houses 5 Comment
  UCR128167  Lippia nodiflora Scott D. White, Michael Honer 2003-7-10 9626 Orange Santa Ana Mountain foothills, Hills above Trampas Canyon, just south of Ortega Hwy 183 Comment
  IRVC21382  Lobelia dunnii var. serrata A. S. Boughey 1968-7-9 405 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  IRVC298  Lobelia dunnii var. serrata R. Acevedo 1965-4-3 Orange east bluff. Newport Beach Comment
  UC537116  Lolium multiflorum Lawrence M. Booth 1932-5-15 1203 Orange Newport Bay Costa Mesa; Newport Bay Comment
  UCR131729  Lolium perenne C. B. Wolf 1932-7-7 03858 Orange South Coast, Bryant Ranch, Bryant Ave, at pump house 0.5 mi. east of Los Alamitos Blvd. 6 Comment
  UCR131730  Lolium perenne C. B. Wolf 1932-6-13 03714 Orange Fullerton, Rose Drive 53 Comment
  RSA697737  Lolium perenne subsp. multiflorum Minor Warne 1934-5-11 s.n. Orange Talbert Drainage. Comment
  RSA6065  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3717 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  UCD66645  Lolium temulentum A. A. Beetle 1942-4-19 3093 Orange 20 miles S of Santa Ana, road to Laguna. 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
  RSA530  Lomatium vaginatum J. T. Howell 1927-6-3 22 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA697262  Lonicera subspicata Keith E. Hoffmaster 1934-4-22 s.n. Orange Santa Ana Mountains. Comment
  RSA455384  Lonicera subspicata var. denudata F. R. Fosberg 1931-6-21 S- 5136 Orange Silverado Canyon. Santa Anita Mts. Comment
  UC1125290  Lonicera subspicata var. denudata A. Lewis Apr 1934 404 Orange Verdugo Canyon Cleveland National Forest, Corona Quadrangle Comment
  UC284253  Lonicera subspicata var. denudata P. A. Munz 1923-1-14 7052 Orange Glen Ivy Trail to Santiago Peak; Santa Ana Mts. 1066 Comment
  RSA788249  Lonicera subspicata var. johnstonii R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49625 Orange Santa Ana Mountains: San Juan Canyon, along Ortega Highway (74) across from San Juan Fire Station Comment
  CAS-BOT-BC198563  Lotus E. W. Lathrop 1974-6-27 7420 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland Nat'l Forest 396 Comment
  RSA681023  Lotus hamatus Fred M. Roberts, David E. Bramlet 2003-3-13 5582 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 207 Comment
  RSA689413  Lotus heermannii Scott D. White, Amanda Duchardt 2003-4-10 9006 Orange Santa Ana Mountain Foothills: Ridges & east-facing canyons above Trampas Canyon. 122 Comment
  UC1543225  Lotus heermannii Donald G. Nelson 1935-4-6 256 Orange San Juan Capistrano, below main highway, about 4 mi from summit San Juan Canyon 60 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  IRVC15129  Lotus heermannii var. heermannii A. S. Boughey 1968-7-9 383 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA734346  Lotus salsuginosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34637 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 396 Comment
  UCR193847  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-7-16 35882 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 370 Comment
  UCR222416  Lotus salsuginosus D. E. Bramlet 2008-3-26 4118 Orange Peninsular Range; Santa Ana Mountains, Bee Canyon, Bowerman landfill site. 202 m south of the Bee Canyon access road and 151 m west of the active landfill entrance 295 Comment
  RSA5274  Lotus scoparius B. D. Stark 1933-1-17 4518 Orange Dana Point. 15 Comment
  UC864897  Lotus scoparius I. W. Clokey 1932-3-1 5329 Orange Laguna Beach Comment
  RSA90319  Lotus scoparius F. W. Peirson 1923-3-26 4093 Orange Canada Salada. Comment
  IRVC2254  Lotus scoparius subsp. scoparius C. Weir 1965-3-9 Orange east bluff, Mar Vista. Newport Beach Comment
  UCR223427  Lotus scoparius subsp. scoparius Dick Newell, Don Millar 2011-2-15 059 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  IRVC2255  Lotus scoparius subsp. scoparius S. Park 1965-4-8 Orange Corona del Mar, between Narcissus Ave. and Marigold Ave. Newport Beach Comment
  RSA681947  Lotus scoparius var. scoparius Fred M. Roberts, David E. Bramlet 2003-3-7 5570 Orange Donna O'Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  UCR191332  Lotus strigosus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34615 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
  UCR138409  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 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
  UCR179763  Ludwigia repens R. E. Riefner Jr. 2006-10-8 06- 483 Orange South Coast, Irvine, San Diego Creek near 405 Freeway, between 405 and Laguna Road 51 Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA699290  Lupinus albifrons Minor Warne 1934-03 s.n. Orange Near Modjeska and S.A. Canyon 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
  RSA794050  Lupinus bicolor subsp. microphyllus Doris Bowers 1971-4-19 1686 Orange Black Star Canyon Indian Site 762 Comment
  IRVC22219  Lupinus bicolor subsp. umbellatus Fred M. Roberts, Gordon Marsh 1985-4-3 1611 Orange Irvine: Irvine Ranch, 1.2km W UCI campus center, Southern Coastal 24 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
  IRVC17057  Lupinus excubitus var. hallii A. S. Boughey 1969-5-3 430 Orange Black Star Canyon on seaward side near crest. Santa Ana Mountains Comment
  IRVC2307  Lupinus excubitus var. hallii Pat Rolfe 1965-3-30 s.n. Orange Trabuco Canyon. Santa Ana Mountains Comment
  UC527220  Lupinus excubitus var. hallii B. D. Stark 1931-4-18 1939 Orange Santa Ana Canyon mouth of Gypsum Canyon; n base of Santa Ana Mts., Santa Ana Canyon 152 Comment
  RSA413701  Lupinus hirsutissimus M. B. Dunkle 1933-3-5 3081 Orange San Juan Canyon. Comment
  POM312150  Lupinus latifolius subsp. longipes N. C. Cooper 1944-6-4 1336 Orange San Juan Canyon. 549 Comment
  RSA413752  Lupinus latifolius subsp. parishii N. C. Cooper 1949-5-1 3949 Orange San Juan Canyon 610 Comment
  IRVC20486  Lupinus longifolius Fred M. Roberts, Karlin G. Marsh 1983-5-13 1046 Orange San Joaquin Hills: Laguna Canyon, Laguna Canyon Rd., 1.7km N Thurston Sch.; 6.4km SER Signal Peak. Southern Coastal 50 Comment
  POM24880  Lupinus longifolius F. M. Reed 1925-5-14 4991 Orange Aliso Canon. Comment
  RSA588787  Lupinus longifolius Fred M. Roberts, D. Bontrager 1990-4-18 4575 Orange Rancho Mission Viejo: Chiquita Ridge, just west of Canada Chiquita, 2.9 km N Median Rancho Survey Marker 183 Comment
  UC1595603  Lupinus microcarpus var. microcarpus Fred M. Roberts Jr. and Carol A. Roberts 1989-4-7 4262 Orange 0.6 km nw Moulton Peak; Aliso-Wood Canyon Regional Park, Upper Wood Canyon 131 Comment
  RSA722341  Lupinus sparsiflorus Unspecified s.n. Orange Orange County park Comment
  UCSB47590  Lupinus sparsiflorus Roberts, Jr., Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Canyon, Rte. 74, 0.6 km. E San Juan Guard Station 238 Comment
  IRVC2342  Lupinus succulentus 1965-4-18 HS 0416 Orange Trabuco Canyon. Santa Ana Mountains Comment
  IRVC2348  Lupinus succulentus D. Van Gorden 1965-5-9 HS 0415 Orange Silverado Canyon. Santa Ana Mountains; Comment
  RSA653185  Lupinus succulentus David Barrios 1991-5-8 33 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir. 365 Comment
  RSA88903  Lupinus succulentus E. K. Balls 1954-3-1 18850 Orange Botanic Garden, Santa Ana Canyon Comment
  UCR281555  Lupinus succulentus Mitch Provance, Jeremiah George 2017-3-20 317- 120 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  IRVC16721  Lupinus succulentus J. B. Anderson 1966-4-9 545 Orange San Joaquin Hills: Coyote Canyon, north facing slope, 1/4 mile W of Signal Peak Southern Coastal 274 Comment
  RSA722342  Lupinus succulentus R. H. McArthur 1934-2-17 s.n. Orange Santa Ana Canyon. Comment
  IRVC2353  Lupinus truncatus A. S. Boughey 1965-3-9 18 Orange San Joaquin Hills. Southern Coastal Comment
  UC450772  Lupinus truncatus Fay A. MacFadden 1931-3-1 2939 Orange Laguna Beach Comment
  UCR193438  Lupinus truncatus A. C. Sanders, Mitch Provance 2008-5-20 35393 Orange Peninsular Range; Santa Ana Mtns., 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
  IRVC15186  Lupinus truncatus Gordon A. Marsh, K. Conrey 1975-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam Southern Coastal Comment
  IRVC19963  Lupinus truncatus Gordon A. Marsh, Karlin G. Marsh 1983-4-14 s.n. Orange Laguna Canyon: Sycamore Hills, N sector, road edge Southern Coastal 146 Comment
  CAS-BOT-BC383071  Lycium brevipes R. E. Riefner, Jr. 2012-1-16 12 -7 Orange City of Newport Beach, Corona del Mar, Buck Gully, near LIttle Corona Beach, slope adjacent to restroom facility, vicinity of Poppy Ave. and Ocean Blvd. 15 Comment
  RSA719471  Lycium brevipes R. E. Riefner Jr. 2004-12-23 04 -558 Orange City of San Clemente, vicinity of San Clemente Pier at Ave. Del Mar. 3 Comment
  CAS-BOT-BC383072  Lycium brevipes var. hassei R. E. Riefner, Jr. 2014-4-12 14 -77 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. 40 Comment
  SD248502  Lycium brevipes var. hassei R. E. Jr. Riefner 2006-3-19 06 58 Orange City of San Clemente, San Clemente State Beach, SSW ca. 100 m from the intersection of Ave. Calafia and South Ola Vista Rd. Along trail. 39 Comment
  CAS-BOT-BC233467  Lycium californicum Frank W. Peirson 1924-2-10 4526 Orange Balboa, near bridge Comment
  CAS-BOT-BC233471  Lycium californicum Albert N. Steward 1958-3-20 7396 Orange East of Daylight Pass, Death Valley National Monument 1219 Comment
  POM4215  Lycium californicum D. L. Crawford 1916-7-24 741 Orange Laguna Beach. Comment
  POM50622  Lycium californicum Helen D. Geis 1902-1 581 Orange Laguna Beach. Comment
  RSA0071939  Lycium californicum CNPS Accuracy Assessment Team 2014-7-22 6468 .1 Orange Crystal Cove State Park. Comment
  RSA700255  Lycopersicon esculentum Fred M. Roberts 2003-7-8 5959 Orange Coastal Plains and Basins; Los Angeles Basin region; Orange Park Acres, along Santiago Creek, 0.5 km E Cannon Road and 0.3 km n Santiago Canyon Road. 117 Comment
  RSA0014834  Lythrum californicum A. C. Sanders, Fred M. Roberts 2008-7-16 35843 Orange Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin. 391 Comment
  UCSB47995  Lythrum californicum Roberts, Fred 1980-7-7 Orange Santa Ana Mtns; San Juan Canyon, Hwy 74, 2.4km ENE San Juan Guard Station; 0.3km W Bench Mark 1100 315 Comment
  UC537266  Lythrum hyssopifolia Lawrence M. Booth 1932-7-19 1282 Orange Bolsas March Comment
  RSA759166  Madia gracilis A. C. Sanders, Mitch Provance 2008-5-20 35390 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
  UCR18628  Madia gracilis John C. Roos 1960-5-30 s.n. Orange Peninsular Ranges; Santa Ana Mtns, ridge at head of Hagador Canyon 1070 Comment
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Jan 7 2013
  CAS-BOT-BC206257  Malacothamnus fasciculatus Le Roy Abrams 1901-6-13 1781 Orange Laguna Comment
  RSA433314  Malacothamnus fasciculatus F. R. Fosberg 1931-6-21 S- 5094 Orange Lower Santiago Canyon. Comment
  POM95353  Malacothamnus fasciculatus F. W. Peirson 1925-4-22 5748 Orange 5 miles south of Laguna Beach Comment
  POM201784  Malacothrix saxatilis var. tenuifolia L. M. Booth 1932-7-27 1319 Orange Corona del Mar, Newport Bay. Comment
  RSA647890  Malacothrix saxatilis var. tenuifolia Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-25 60 Orange 1/2 mile south of Chino Hills State Park Boundary 229 Comment
  RSA507486  Malacothrix saxatilis var. tenuifolia Jeri Hirshberg 1988-6-7 s.n Orange Santa Ana Mts. 274 Comment
  RSA696481  Malosma laurina J. R. Bruff 1934-6-30 586 Orange High school campus Comment
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Sep 13 2013
  UC1130499  Malosma laurina A. Lewis May 1934 450 Orange 1/2 mi. w. Long Canyon; Cleveland Nat'l Forest, Elsinore Quad. 914 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
  UCR239901  Malosma laurina O. F. Clarke 2004-5-29 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  SD245234  Malosma laurina R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49609 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Roadbank above San Juan Creek. Comment
  UC1607989  Malva parviflora Donald G. Nelson 1935-4-14 276 Orange near Pacific Electric Railway Station (Newport Beach); Newport Beach Comment
  UCR192466  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
  RSA184165  Malva parviflora I. L. Wiggins 1966-3-1 20479 Orange western edge of California State College campus, Fullerton Comment
  RSA471  Malva parviflora J. T. Howell 1928-3-17 870 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA234536  Malvella leprosa James Henrickson 1970-7-25 5072 Orange 3 miles NE of Huntington Beach at far northern end of Bolsa Chica Salt Marsh. 0 Comment
  RSA666105  Malvella leprosa Fred M. Roberts, Michelle Lee 2001-6-18 5494 Orange Rancho Mission Viejo: Chiquita Ridge, 0.3km WNW Median Rancho Survey Marker. PCR Vernal Pool 4. 226 Comment
  UCR16327  Malvella leprosa N. J. Moriarty 1973-5-20 - 2 Orange Huntington Beach, 0.7 mi. north of Golden West Blvd. on west side of Pacific Coast Highway Comment
  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
  CHSC19526  Marah macrocarpa T. Casale 1974-4-11 1 Orange Ca. 4.1 mi ne of the Mission SanJuan Capistrano on Hwy. 74. 170 Comment
  RSA441223  Marah macrocarpa E. S. Spalding 1923-1-1 s.n. Orange Laguna Beach. Comment
  UC484230  Marah macrocarpa C. B. Wolf 1931-2-9 1819 Orange between Horseshoe Bend and Esperanza (on R.R. fence); Santa Ana Canyon 137 Comment
  UCSB47970  Marah macrocarpa Roberts, Jr., Fred 1980-2-17 Orange Dana bluffs along Scenic Drive Road, northwest of and above Dana Point Harbor, Dana Point 58 Comment
  RSA801986  Marah macrocarpa var. macrocarpa Minor Warne 1934-2-1 s.n. Orange Santiago Canyon Comment
  OBI17602  Marrubium vulgare Kurt R. Neisess 1975-12-20 s.n. Orange Fullerton Hills area Comment
  HSC14233  Marrubium vulgare D. W. Snell 1964-3-3 30 Orange 1 mi. E of Brea on Deadora Rd. Comment
  RSA658481  Marrubium vulgare J. Berkley 1994-5-3 6 Orange Carbon Canyon Regional Park, west slope off the bike trail coming from Rose Drive, behind the dam on the hill before you turn the corner into the park. Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir 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
  UCR281940  Matricaria discoidea R. E. Riefner Jr. 2017-3-29 17- 117 Orange South Coast, San Clemente, San Clemente State Beach, North-central area, south of Ave. Calafia 39 Comment
  UCR282164  Matricaria discoidea R. E. Riefner Jr. 2017-4-10 17- 164 Orange South Coast, city of San Clemente, San Clemente State Beach, southwest area, west of Concordia Elementary School 32 Comment
  CAS-BOT-BC348166  Matricaria discoidea Ira L. Wiggins 1966-4-22 20615 Orange Along Associated Road between Yorba Linda Boulevard and Imperial Highway Comment
  CHSC69822  Matricaria occidentalis C. L. Mitchcock; C. V. Muhlick 1964-3-17 Orange Along road, 8 miles e. of Yorba Linda, Santa Ana Canyon. Comment
  JEPS13969  Matthiola incana D. L. Crawford 1922-8-3 743 Orange Aliso Point; Laguna Beach Region, Aliso Point Comment
  POM476  Matthiola incana D. L. Crawford 1916-8-3 743 Orange Aliso, Laguna Beach Region. Comment
  RSA39348  Medicago lupulina E. L. Paddock 1943-6-22 12736 Orange East side Glassell Street north of Fairhaven. Comment
  RSA678512  Medicago polymorpha Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1129 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCR192632  Medicago polymorpha A. C. Sanders, Fred M. Roberts 2008-3-25 34522 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA746471  Medicago rigidula R. E. Riefner Jr. 2007-3-18 07 -150 Orange City of San Juan Capistrano, San Juan Creek Rd. at San Juan Creek Circle. USGS quad: San Juan Capistrano 24 Comment
  UCD170852  Medicago truncatula A. C. Sanders; Fred M. Roberts 2008-3-25 34521 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 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
  POM296605  Melica imperfecta Lyman Benson 1932-3-26 3201 Orange Dana Point 60 Comment
  RSA403491  Melica imperfecta A. M. Johnson 1934-4-15 4416 Orange Carmen's Laguna Comment
  RSA542365  Melica imperfecta Fred M. Roberts 1988-4-8 3896 Orange Lomas de Santiago: Loma Ridge, Central Linestone Canyon, 4.1 kilometers NNW Bolero Lookout. 323 Comment
  RSA58  Melica imperfecta J. T. Howell 1927-6-26 230 Orange Claymine Canon near Sierra Peak. [canyon] 244 Comment
  RSA697718  Melica imperfecta Anonymous s.n. Orange Orange County park Comment
  RSA697761  Melica imperfecta Aileen Adams 1932-4-29 s.n. Orange Slope above dam. [Orange Co.?] Comment
  UCR205982  Melica imperfecta Erynn Maynard 2007-8-2 s.n. Orange Peninsular Range; Santa Ana Mtns., Starr Ranch Sanctuary, 100 Bell Canyon Rd., city of Trabuco Canyon 488 Comment
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Sep 5 2010
  RSA696596  Melica imperfecta J. Russell Bruff 1927-3-16 2 -I Orange Gun Club. Comment
  CDA20831  Melilotus albus P. Akers 2006-3-25 PA 5 -06 Orange Peninsular Ranges; Yorba Linda. Santa Ana River S of La Palma Dr, 0.6-0.9 mi E of Yorba Linda Dr. 121 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
  RSA657750  Melilotus albus Ken Greby 1985-5-17 39 Orange behind PG and E substation located 2 km. SE from Laguna Canyon Rd., on El Toro Rd., adjacent to Leisure World. Comment
  RSA649318  Melilotus albus L. Fountain 1966-2-16 6 Orange Corner of Bastanchury Road and Cambridge Ave., Fullerton Comment
  SD245370  Melilotus albus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49585 Orange Santa Ana Mountains: San Juan Canyon aat Lower Picnic Camp, just below Ortega Highway (74). Margins of creek. Comment
  CDA25989  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Southern Coastal; Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7km (air) NNW UC Irvine campus center Comment
  IRVC2412  Melilotus indicus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC2416  Melilotus indicus McGuire 1965-3-14 s.n. Orange Newport Beach; Bayside Dr. Southern Coastal Comment
  IRVC2418  Melilotus indicus Bruce Reynolds 1965-4-20 s.n. Orange Newport Beach; Balboa Island, 115 Amethyst Ave. Southern Coastal Comment
  IRVC27499  Melilotus indicus Mark A. Elvin 2004-5-2 3410 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  RSA698034  Melilotus indicus Unspecified s.n. Orange Roadside-Near Orange Co. Park. Comment
  RSA750902  Melilotus indicus A. C. Sanders, Fred M. Roberts 2008-7-3 35711 Orange Weir Canyon, along Weir Canyon Rd. 1.2 mi. SSE of Walnut Canyon Reservoir, below Upper Blind Canyon Rd. 212 Comment
  UCD108069  Melilotus indicus E. Frost 1996-5-11 14 Orange Newport Back Bay, 70 yards in along bike path. 7 Comment
  UCR241902  Melilotus indicus Fred M. Roberts 2012-4-24 7520 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, Buck Gully, tributary canyon below San Joaquin Hills Road and 2.0 km W Signal Peak 167 Comment
  UCSB48206  Melilotus indicus Roberts, Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA791739  Melinis repens R. E. Riefner Jr. 2011-8-16 36100 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  POM49187  Mentzelia affinis Helen D. Geis 1900-1 517 Orange Hills back of Santa Ana. Comment
  RSA594800  Mentzelia micrantha Fred M. Roberts, Sandy Leatherman, B. Leatherman 1994-4-24 4921 Orange Santa Ana Mountains: San Juan Canyon, south side of CA route 74, 1 kilometers NNW San Juan Survey Mark. 268 Comment
  RSA734654  Mentzelia micrantha A. C. Sanders, Fred M. Roberts, A. O Neal, D. E. Bramlet 2008-5-9 35313 Orange Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir. 346 Comment
  CAS-BOT-BC435233  Mesembryanthemum crystallinum Carl B. Wolf 1927-7-23 667 Orange Just no. of San Clemente Comment
  IRVC14  Mesembryanthemum crystallinum L. Stilgenbauer 1965-3-20 Orange Corona del Mar, 339 Milford Dr. Newport Beach Comment
  IRVC17950  Mesembryanthemum crystallinum A. B. McGee 1980-6-26 Orange San Joaquin Freshwater Marsh, west side, roadside. Irvine Comment
  UCR21112  Mesembryanthemum crystallinum S. Beckstrom-Sternberg 1980-5-25 52580 01 -6 Orange Jamboree Rd entrance to Hwy 73 South. Comment
  UCR93934  Mesembryanthemum crystallinum B. G. Pitzer 1996-4-30 2809 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  RSA234539  Mesembryanthemum crystallinum James Henrickson 1970-7-24 4982 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
  RSA302143  Mesembryanthemum crystallinum J. R. Shevock 1972-2-18 1339 Orange Bluffs, Newport back bay. 9 Comment
  CAS-BOT-BC435276  Mesembryanthemum nodiflorum Carl B. Wolf 1927-7-23 663 Orange Juste no. of San Clemente Comment
  JEPS57261  Mesembryanthemum nodiflorum L. R. Heckard and R. C. Bacigalupi 1968-5-8 1835 Orange at s end of the town of Dana Point Comment
  RSA799937  Mesembryanthemum nodiflorum Justin M. Wood 2011-4-12 3669 Orange South Coast, Santa Ana River: marsh just upstream of Pacific Coast Highway. On isolated sand capped island. 0 Comment
  UC149125  Mesembryanthemum nodiflorum LeRoy Abrams 1903-4-20 3280 Orange near San Juan (along the seashore); Southern California Comment
  RSA286421  Mesembryanthemum nodiflorum Mary H. O Brien 1976-5-1 s.n. Orange Bolsa Chica Bay 100 m e. of Hwy 1 opposite Bolsa Chica State Beach entrance station. Edge of a 6X10 meter salt burn. 0 Comment
  RSA65535  Mesembryanthemum nodiflorum F. W. Peirson 1920-6-25 2209 Orange 5 miles south of San Juan Capistrano. Comment
  RSA535967  Micropus californicus Fred M. Roberts 1989-4-17 4266 Orange SANTA ANA MTNS: Central Blind Canyon, 7.3km SW Sierra Peak, 2.4km N Irvine Lake. 259 Comment
  RSA608535  Microseris douglasii subsp. platycarpha D. E. Bramlet 1993-3-27 2297 Orange University of California, Irvine Campus, adjacent to the UCI Ecological Reserve. The site is 150 ft. SW of the end of Los Trancos Dr. & 250 ft. E of the reserve entrance. 61 Comment
  RSA702990  Microseris douglasii subsp. platycarpha D. E. Bramlet, Fred M. Roberts 2003-3-27 3358 Orange Donna O'Neill Reserve. NE corner of the reserve 23m west of Cristianitos Rd. and 168m north of the E-W access road. 120 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
  UCR98773  Microseris douglasii subsp. platycarpha D. E. Bramlet 1995-4-29 2404 Orange Fairview Park, Costa Mesa. 366m north of intersection of Wilson and Canyon drive and 152 m west of the Canyon School 43 Comment
  RSA789582  Microseris heterocarpa R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49654 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR209371  Microseris heterocarpa Fred M. Roberts, Linda Farley 2008-3-28 6817 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
  RSA263649  Microseris lindleyi E. W. Lathrop 1966-4-6 6138 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UC943905  Mimulus M. Van Rensselaer 1944-11-26 1876 Orange about 2 mi ne Laguna Beach; Laguna Canyon Comment
  RSA678722  Mimulus aurantiacus Fred M. Roberts, Robert L. Allen, Carol Roberts 2003-5-11 5853 Orange Dana Point Headlands: 0.8km SSW Richard Henry Dana School north of Marguerita Drive. 76 Comment
  SEINET7067515  Mimulus aurantiacus A. G. Vestal 1947-6-12 s.n. Orange San Juan Canyon. Coordinate datum: NAD27. UTM Zone 11, 448887mE, 3712881mN. Comment
  UCR228796  Mimulus aurantiacus Dick Newell, Don Millar 2011-5-3 136 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  SEINET3078496 Image available Mimulus aurantiacus subsp. australis Geoffrey Matthews, Jim Hearne, Robin Maetche 1971-5-13 s.n. Orange 4 miles north of Morrill Valley on Hwy 74 Comment
  POM311168  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -ABC Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  UCD122401  Mimulus aurantiacus var. pubescens R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  UCSB48103  Mimulus aurantiacus var. pubescens Roberts, Fred; Fritzke, Sue 1982-4-3 Orange Santa Ana Mnts; Lower Hot Springs Canyon; Lazy W Road; 2.4km N by road of San Juan Guard Station; 1.4km NNW Juan Rancho Survey Mark 240 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
  RSA588893  Mimulus aurantiacus var. puniceus Fred M. Roberts, Carol A. Roberts 1990-5-31 4661 Orange Costa Mesa; Fairview Park, Just west of end of Canyon Drive, 0.1 km W Canyon School. 24 Comment
  RSA698961  Mimulus brevipes Dorothy Sammis s.n. Orange Silverado Canyon Comment
  UCR193810  Mimulus cardinalis A. C. Sanders, Fred M. Roberts 2008-7-16 35832 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UCR228801  Mimulus cardinalis Dick Newell, Don Millar 2011-7-19 210 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  RSA759108  Mimulus cardinalis Robt. Allen, Reginald Durant 2008-9-28 s.n. Orange Laurel Spring, just below Harding Truck Trail. Survey Waypoint no. 85. Comment
  SEINET7908929  Mimulus cardinalis G. A. Klue 1972-1 12 Orange Silverado Canyon 610 Comment
  RSA16334  Mimulus clevelandii Percy C. Everett 1935-6-18 7200 Orange Main Divide Motorway 7 miles from Santiago Peak lookout station 1311 Comment
  UCR158807  Mimulus clevelandii A. C. Sanders, Mark A. Elvin 2005-9-2 31612 Orange Santa Ana Mtns., near head of Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks, below the towers on Santiago Peak 998 Comment
  UCR174021  Mimulus guttatus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33012 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  POM49740  Mimulus pilosus Helen D. Geis 1902-1 514 Orange [Unspecified] Comment
  RSA715695  Mimulus pilosus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6277 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA719  Mimulus pilosus J. T. Howell 1927-7-27 491 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  CDA41824  Mimulus puniceus Pope & Hill 1957-4-9 s.n. Orange Irvine Ranch. 0 Comment
  RSA637487  Minuartia douglasii Valerie L. Soza, LeRoy Gross 1999-6-10 512 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA759204  Minuartia douglasii var. douglasii 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
  RSA732070  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 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
  UCR192489  Mirabilis laevis A. C. Sanders, Fred M. Roberts 2008-3-25 34556 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CAS-BOT-BC434670  Mirabilis laevis var. crassifolia I. M. Johnston 1918-5-4 266 Orange Hills back of Laguna Beach 152 Comment
  JEPS61334  Mirabilis laevis var. crassifolia L. M. Booth 1932-5-12 1035 Orange Newport Bay Comment
  UC774836  Mirabilis linearis E. Paddock 1942-8-12 11295 Orange stern Ranch, John Manassero Lease Yorba Linda Comment
  RSA30448  Mirabilis linearis E. L. Paddock 1942-8-12 11295 Orange Stern Ranch, Yorba Linda, John Manassero Lease Comment
  CHSC35479  Monanthochloe littoralis Thomas Eakle 1971-5-28 164 Orange Ca. 2 mi. NE of Newport at Newport Bay saltmarsh. 0 Comment
  SEINET182350 Image available Monanthochloe littoralis L. M. Booth 1932-5-12 1046 Orange Newport Bay Comment
  UCD86070  Monanthochloe littoralis Peter H. Raven 1958-7-5 13562 Orange north of Surfside. Comment
  UCR207556  Monanthochloe littoralis O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  SD119375  Monardella breweri subsp. lanceolata Reid Moran 1977-6-13 24236 Orange Willow Canyon, tributary of Laguna Canyon. 124 Comment
  IRVC25103  Monardella hypoleuca subsp. hypoleuca Fred M. Roberts, Gordon A. Marsh 1986-8-27 3115 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
Read comments
Aug 13 2012
  RSA7408  Monardella macrantha subsp. hallii Carl B. Wolf 1933-8-24 5406 Orange Santa Ana Mountains:along main divide motorway on west slope of Modjeska Peak 1372 Comment
  CAS-BOT-BC263361  Muhlenbergia asperifolia John Thomas Howell 1927-7-27 2852 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  CAS-BOT-BC227250  Muhlenbergia microsperma R. E. Riefner, Jr. 2011-8-16 11 -99 Orange Newport Beach, Orange County Parks & Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 280 Comment
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA752038  Muhlenbergia microsperma Fred M. Roberts 2008-3-27 6811 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 1, 0.5km W Marine Institute (Dana Point Harbor). 45 Comment
  RSA790096  Muhlenbergia microsperma R. E. Riefner Jr. 2011-8-16 11 -99 Orange Newport Beach, Orange County Parks and Recreation lands, along Newport Coast Drive, between Vista Ridge Rd. & Alteza Rd. 281 Comment
  SBBG89596  Muhlenbergia microsperma J. Hirshberg 1988-6-7 Orange Black Star Cyn 274 Comment
  UCR2585  Muhlenbergia microsperma F. M. Reed 1922-4-30 4721 Orange Arch Beach 229 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
  UCR48000  Myoporum laetum Jack Easton 1987-4-21 s.n. Orange Southern Coast, Kain property, San Clemente, mouth of Trafalgar Canyon, just behind the beach 30 Comment
  CAS-BOT-BC456169  Najas guadalupensis Street; Williams 1919-5-4 2688 Orange Laguna Beach Region. Laguna Lakes Comment
  JEPS1400  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Creek Anaheim Creek (Orange County Coast) Comment
  POM156462  Nassella cernua Le Roy Abrams 1903-4-18 3268 Orange Capistrano Comment
  RSA697693  Nassella lepida Anonymous s.n. Orange Orange County park Comment
  UCD87925  Nassella lepida F. M. Reed 1928-7-10 6579 Orange sidewalk in Laguna Beach, El Toro. 1524 Comment
  POM147646  Nassella pulchra F. M. Reed 1927-04 5474 Orange Cliff at Beach. 15 Comment
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Nov 4 2017
  RSA588802  Nassella pulchra Fred M. Roberts 1990-5-7 4596 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  UCD87441  Nassella pulchra A. A. Beetle 1942-4-19 3103 Orange Rt. 101. 5 miles south of Laguna Beach. Comment
  UCD87644  Nassella pulchra R. M. L. 1942-4-15 7 Orange north slope. Moulton Ranch. Comment
  POM356  Nasturtium officinale Crocker 1916-4-9 s.n. Orange Santa Ana River region, Aquatec River bottom Comment
  RSA697463  Nasturtium officinale Effie Jessup s.n. Orange Irvine Hills. Comment
  RSA734280  Nemacladus ramosissimus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34643 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 250 Comment
  RSA704834  Nemophila menziesii Francis Battey s.n. Orange Laguna Hills. 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
  UC2041998  Nephrolepis cordifolia R. E. Riefner Jr. 2013-4-5 13 -59 Orange City of Yorba Linda, southbound 91-Freeway at 55-Freeway interchange ca. 0.6 mi W of Lakeview Ave Comment
  UCR266153  Nephrolepis cordifolia R. E. Riefner Jr. 2014-6-14 14- 171 Orange South Coast, city of Newport Beach, Cliff Drive Park, along Cliff Drive near Beacon Street 44 Comment
  IRVC156  Nephrolepis exaltata var. bostoniensis Don Pfirrmann 1965-4-30 HS 535 Orange Newport Beach; 259 Mayflower Drive. Southern Coastal Comment
  RSA648655  Nerium oleander R. E. Riefner 2000-8-23 20 -730 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of Santiago Creek & immediately S. of major stream fork 305 Comment
  CAS-BOT-BC231675  Nicotiana glauca C. L. Hitchcock 1966-3-15 24144 Orange Stearns Lease, 1 1/2 miles e. of Brea Comment
  JEPS12505  Nicotiana glauca Lawrence M. Booth 1932-7-30 1338 Orange near Newport Beach; Santa Ana River Channel Comment
  LA45882  Nicotiana glauca W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA731971  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-4-8 34738 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA0054918  Nicotiana glauca Thelma Shipe 1932-5-8 s.n. Orange Santa Ana Canyon. Comment
  RSA659636  Nicotiana glauca T. A. Daubert 1991-5-26 673 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  JEPS12369  Nicotiana quadrivalvis Alice King Apr 1908 Orange Santiago Creek; Santa Ana Mountains Comment
  JEPS12373  Nicotiana quadrivalvis Lawrence M. Booth 1932-5-19 1083 Orange Newport Bay Comment
  RSA323273  Nolina cismontana James C. Dice, Wier 1984-9-23 587 Orange Mission Viejo, 1.2 km NW of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras. 275 Comment
  RSA746535  Nolina cismontana R. E. Riefner 2007-6-14 7 -256 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fork Fremont Canyon, Donaldson Ranch Area. 381 Comment
  UCR37795  Nolina cismontana Steve Boyd, L. F. LaPre 1981-5-27 s.n. Orange Santa Ana Mtns., Northern end of the Santa Ana Mtns., along powerline road on ridges east of Weir Canyon & at the head of Gypsum Canyon. Comment
  RSA734215  Nolina parryi Keith E. Hoffmaster 1936-5-3 725 Orange Live Oak Canyon, Santa Ana Mts Comment
  SEINET9120476  Nolina parryi J. Dice, H. Wier 1984-1 587 Orange Mission Viejo. 1.2 km. NW of Lake Mission Viejo, along south edge of Vista del Lago, just west of Canaveras 274 Comment
  SEINET4173438 Image available Nolina parryi E. W. Lathrop 1976-1 7506 Orange 4 miles northeastof Lake Irvine, Black Star Canyon, Cleveland Nat'l Forest, Trabuco District Comment
  UCR193761  Nothoscordum gracile A. C. Sanders 2008-7-3 35714 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  UCR189550  Nyctocereus serpentinus Fred M. Roberts, R. L. Allen 2007-9-28 6615 Orange Santa Ana Mountains, Silverado Canyon, along Silverado Canyon Rd. at eastern edge of town of Silverado 347 Comment
  POM259318  Oenothera elata subsp. hookeri P. A. Munz 1938-6-23 15569 Orange San Juan Creek, 1 mile below Capistrano. Comment
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Jun 2 2009
  CDA5201  Oenothera speciosa Bill Amling 1957-7-23 Orange 0 Comment
  RSA785413  Oenothera spiralis Keith E. Hoffmaster 1927-4-5 464 Orange [City of] Newport. Comment
  UCD121989  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  SDSU8537  Olea europaea Curtis B. Kendall 1994-5-18 18 V94A Orange North Intersection of Bell Canyon Road and the loop trail in the National Audubon Society Starr Ranch Sanctuary. 314 Comment
  UC729952  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch Comment
  CAS-BOT-BC229010  Oncosiphon piluliferum R. E. Riefner, Jr. 2011-5-20 11 -57 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Rd. at Ridge Park Rd. 305 Comment
  UCR204271  Oncosiphon piluliferum Scott D. White, Jeff Lincer 2003-7-7 9616 Orange Coastal Plains & Basins; South Coastal Plain region, Former El Toro Marine Corps Air Station, East of 'El Toro Marine School' and Irvine Blvd.; site of former dump 140 Comment
  POM279574B  Opuntia X occidentalis Lyman Benson 1950-4-29 14340 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 21 2009
  POM284080  Opuntia X occidentalis Lyman Benson 1955-10-17 15595 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  SD152894  Opuntia X occidentalis Steve Boyd, Tim Ross 1992-5-19 7425 Orange Southern Santa Ana Mountains, San MateoCanyon Wilderness Area, western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo north into Aliso Canyon. Local, openings in chaparral. (IPB 9/07) 365 Comment
  SD152895  Opuntia ficus-indica Steve Boyd, Tim Ross 1992-5-20 7465 Orange Southern Santa Ana Mtns, San Mateo Cyn Wilderness Area,western edge of wilderness in Lucas Cyn, along cyn floor from crossing of Lucas Cyn Trail,upstream Ao mile to spur trail leading to old mining habitations in side cyn.About old homesteads. (IPB 9/07) 305 Comment
  POM285259B  Opuntia littoralis Lyman Benson 1955-10-17 285259 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM288522B  Opuntia littoralis Lyman Benson 1955-10-17 15602 Orange Laguna Beach (north end of town). 30 Comment
  POM317069  Opuntia littoralis David Walkington 1962-11-18 63 Orange West side of N Euclid Ave. north of Sunny Hills West Home, Fullerton. 76 Comment
  UCR222870  Opuntia littoralis T. B. Salvato 2010-10-27 5125 Orange South Coast, Dana Point Headlands, Harbor Point Park, south of Scenic Dr. and Cove Rd., beyond the end of Green Lantern St., overlooking Dana Point Harbor 70 Comment
  POM311514  Opuntia oricola Lyman Benson 1963-7-25 16436 Orange Fullerton, Euclid Ave. just north of Sunny Hills, west. 152 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
  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
  POM286416  Orthocarpus purpurascens Lyman D. Benson 1932-3-26 3191 Orange Dana Point. 61 Comment
  RSA13172  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6693 Orange 1 mi. west of Atwood, Jack Johnson property. 152 Comment
  CAS-BOT-BC254369  Oryza sativa Ira L. Wiggins 1965-11-6 20335 Orange Near railroad right of way, along W side of Atwood Comment
  CAS-BOT-BC355773  Osmadenia tenella Munz; Street; Williams 1919-5-3 2631 Orange Santa Ana River Canon [Canyon] Comment
  CAS-BOT-BC355782  Osmadenia tenella H. F. Copeland 1938-6-28 s.n. Orange Hills back of Laguna Beach Comment
  IRVC24743  Osmadenia tenella Fred M. Roberts 1986-4-29 2823 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 Comment
  RSA518448  Oxalis albicans subsp. californica C. W. Tilforth, Dorothy Tilforth 1977-3-6 1258 Orange Small canyon west of Gypsum Canyon, south side of Santa Ana River, Santa Ana Canyon 152 Comment
  POM311903  Paeonia californica S. Ellis 1955-3-19 230 Orange S of Carbon Canyon, Flying Cow Ranch, San Jose Hills,. 259 Comment
  CAS-BOT-BC257126  Pallenis maritima R. E. Riefner, Jr. 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 3 Comment
  SD247340  Pallenis maritima R. E. Jr. Riefner 2012-11-14 12 551 Orange City of Newport Beach, south of Poppy Street/Ocean Boulevard, coastal bluff near Little Corona Beach, rocky intertidal area. 4 Comment
  RSA724077  Panicum coloratum R. E. Riefner 2004-9-3 4 -425 Orange City of Los Alamitos, Oak Middle School, vicinity of Oak St. at Catalina St. 14 Comment
  UC537118  Parapholis incurva Lawrence M. Booth 1932-5-12 1009 Orange Newport Bay Comment
  RSA629715  Parapholis incurva L. C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  RSA753165  Parietaria floridana D. E. Bramlet 2008-5-15 4272 A Orange Upper Borrego Cyn. 152m east of the access road and 1.7km west of Santiago Cyn Road 450 Comment
  CAS-BOT-BC413373  Parietaria hespera var. californica Helen D. Geis 1902-1-1 509 Orange Santa Ana 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
  RSA0028024  Paspalum dilatatum Fred M. Roberts 2012-9-6 7697 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, west end near Poppy Street entrance, 2.1 kilometers WNW Pelican Hill summit. 37 Comment
  POM603302  Paspalum distichum Le Roy Abrams 1901-06 1762 Orange Near Westminister Comment
  SD227703  Paspalum distichum Scott D. White, Brian Leatherman 1997-6-12 5333 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site, i.e., ca 2 to 4 mi E of I-15 / Hwy 74 jtn. Comment
  UC2061654  Paspalum distichum R. E. Riefner Jr. 2005-7-9 05 -544 Orange City of Mission Viejo, Oso creek, ca. 0.5 mi N of Paseo De Colinas on Camino Capistrano. Comment
  UC455152  Paspalum distichum I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  RSA733141  Paspalum vaginatum R. E. Riefner 2007-10-17 7 -437 Orange City of Dana Point, Doheny State Beach, E side of San Juan Creek Lagoon. 4 Comment
  RSA733142  Paspalum vaginatum R. E. Riefner 2007-7-23 7 -314 Orange City of Newport Beach, E of Jamboree Rd. at Bayiew Way, San Diego Creek confluence with Newport Bay. Comment
  UCR204907  Paspalum vaginatum R. E. Riefner Jr. 2007-7-23 07- 314 Orange South Coast, city of Newport Beach, east of Jamboree Road at Bayview Way, San Diego Creek confluence with Newport Bay 6 Comment
  UC1930114  Paspalum vaginatum R. E. Riefner Jr. 2008-1-13 08 -9 Orange City of Newport Beach, San Diego Creek near Hwy. 73 overpass, E of Jamboree Rd. Comment
  RSA732068  Pectocarya linearis A. C. Sanders, Fred M. Roberts 2008-3-25 34525 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  UCR237832  Pectocarya linearis Mark A. Elvin 2003-2-2 2262 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  IRVC16237  Pectocarya linearis subsp. ferocula Karlin G. Marsh 1978-3-24 Orange UCI Ecological Preserve, Irvine Comment
  POM212414  Pectocarya linearis subsp. ferocula C. B. Wolf 1931-3-6 1846 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 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
  RSA1458  Pedicularis densiflora E. R. Johnson 1929-4-11 1259 Orange Sierra Peak Trail. Comment
  RSA790703  Pedicularis densiflora L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  RSA782219  Pelargonium Mark A. Elvin 2005-5-14 4313 Orange UCI Arboretum 15 Comment
  RSA773505  Pellaea andromedifolia Fred M. Roberts 1999-5-14 5225 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  IRVC20322  Pellaea andromedifolia var. andromedifolia Fred M. Roberts 1983-1-7 850 Orange Upper Park Canyon, west flank of Temple Hill, 1.7km NE Thurstn School; 1.7km SE BM 104, Laguna Beach 230 Comment
  RSA598963  Pellaea andromedifolia var. andromedifolia Scott D. White 1997-3-28 4835 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  RSA640077  Pellaea andromedifolia var. andromedifolia E. Robinson, Crocker 1916-3-29 s.n. Orange Santa Ana Mts. Miller's Canyon, near Murrietta. Comment
  CAS-BOT-BC71393  Pellaea mucronata Carl B. Wolf 1933-8-24 5396 Orange Santa Ana Mts., summit of Santiago Pk. 1731 Comment
  RSA739324  Pellaea mucronata Keith E. Hoffmaster 1934-7-13 33 ` Orange Santa Ana Mountains Comment
  RSA631394  Pellaea mucronata var. mucronata Valerie L. Soza, LeRoy Gross 1999-6-7 477 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  IRVC14100  Pellaea mucronata var. mucronata K. Marvosh 1966-5-1 Orange Harding Canyon, 1mi up canyon, 400ft up on slope; dry rocky slope in chaparral and coastal sage scrub. Santa Ana Mountains Comment
  CAS-BOT-BC258794  Pennisetum clandestinum E. L. Paddock 1943-7-2 12738 Orange Near Dana Point Comment
  CDA2269  Pennisetum clandestinum D. G. Kelch 2006-12-9 6 .566 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  CDA2294  Pennisetum setaceum D. G. Kelch 2006-12-9 6 .564 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  IRVC29788  Pennisetum setaceum Mark A. Elvin, Dean Kelch 2006-12-9 5311 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  UCR247555  Pennisetum villosum R. E. Riefner Jr. 2013-2-11 13- 41 Orange South Coast, Laguna Beach, vicinity of Pacific Coast Hwy and Montage Resort Drive 30 Comment
  SEINET10299452  Penstemon centranthifolius Norman C. Cooper 1944-6-4 1351 Orange San Juan Canyon, Lower campground 457 Comment
  RSA759276  Penstemon heterophyllus Robert 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
  RSA0015001  Penstemon spectabilis Fred M. Roberts 2008-5-22 6993 Orange Lomas de Santiago: Santiago Creek wash 0.3 km S Silverado Sch. and 3.8 km NW Bolero Lookout. Irvine Ranch Conservancy. 305 Comment
  HSC1086  Pentagramma triangularis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  RSA0060347  Pentagramma triangularis Gary D. Wallace, G. Cromwell 1966-4-16 459 Orange W edge of Cleveland Nat. For. about 5 mi. E of San Juan Capistrano, in the Santa Ana Mountains, in Hot Springs Canyon. Comment
  RSA687405  Pentagramma triangularis subsp. triangularis Norman C. Cooper 1949-5-1 3951 Orange San Juan Canyon 610 Comment
  HSC3893  Peritoma arborea J. W. Johnson 1961-3-29 Orange Newport Beach, N slope overlooking upper Newport Bay Comment
  SD145971  Peritoma arborea var. globosa R. D. Goeden, D. W. Ricker 1965-6-21 Orange Dana Point 60 Comment
  SEINET1004068  Persea cinerascens R. W. Scora 1997-1 5142 Orange Zentmyer Avocado Collection, Field 3, South Coast Field Station, Irvine 21 Comment
  SD231420  Persicaria hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange Santa Ana Mountain foothills: San Juan Creek in San Juan Capistrano. 24 Comment
  UCR186686  Persicaria lapathifolia T. B. Salvato, Katie Kurtz, Mitch Provance 2006-10-15 1907 Orange South Coast, Irvine, San Diego Creek flood control channel, between Campus Drive and Michelson Drive 6 Comment
  UCR240105  Persicaria lapathifolia Dick Newell, Judy Booth 2012-9-3 284 Orange South Coast, Irvine, San Diego Creek under Campus Drive overcrossing 4 Comment
  RSA13072  Phacelia brachyloba Percy C. Everett 1935-7-11 7267 Orange Santa Ana Mts, Main Divide Motorway, 1.7miles N of Jct with Trabuco Can road. 1220 Comment
  RSA679097  Phacelia cicutaria subsp. hispida Fred M. Roberts 2003-6-25 5952 Orange Santa Ana Mountains: Mojeska Peak in Upper Cold Springs Cyn., north of Main divide Truck Trail, 0.4 km ESE summit. 1471 Comment
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Jan 25 2007
  RSA594  Phacelia cicutaria var. hispida J. T. Howell 1927-7-26 477 Orange Claymine Canon near Sierra Peak. 244 Comment
  UC1280311  Phacelia cicutaria var. hispida John M. Tucker 1941-5-30 257 Orange roadside on Ortega Hwy 2-3 mi e western boundary of National Forest; Cleveland National Forest Comment
  RSA699147  Phacelia cicutaria var. hubbyi Helen Stanley s.n. Orange Limestone Canyon. Comment
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Jun 12 2019
  RSA733877  Phacelia cicutaria var. hubbyi A. C. Sanders, Fred M. Roberts 2008-4-8 34745 Orange Peninsular Range: Lomas de Santiago, Loma Ridge, head of Hicks Canyon. S of Santiago Reservoir. 351 Comment
  RSA741728  Phacelia cicutaria var. hubbyi R. E. Riefner Jr. 2007-6-14 7 -257 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fremont Canyon, Windy Ridge area. 478 Comment
  RSA738988  Phacelia ciliata Pomeroy 1929-3-16 s.n. Orange Peter s Canyon Comment
  RSA539411  Phacelia curvipes Fred M. Roberts, Carol A. Roberts 1988-6-9 4070 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Peak, west slope, 0.5 km NNW summit. 1417 Comment
  RSA697781  Phacelia distans Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts. PR8. Comment
  UCR250853  Phacelia distans Dick Newell, Don Millar 2014-4-15 362 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Agua Chinon wash at the lower gate next to the 241 toll road 328 Comment
  RSA698722  Phacelia distans R. H. McArthur 1924-3-25 s.n. Orange Barranca Bridge - Laguna Road Comment
  UCR191235  Phacelia hubbyi A. C. Sanders, Fred M. Roberts 2008-4-22 34985 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
  RSA708726  Phacelia imbricata subsp. patula Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6222 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UCSB48211  Phacelia minor Roberts, Jr., Fred 1981-5-3 Orange Santa Ana Mtns.; Hot Springs Canyon, 1.3 km. NNE San Juan Guard Station 276 Comment
  JEPS1324  Phacelia parryi Alice King March 1908 Orange Santiago Creek Santa Ana Mts. Comment
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1
  RSA699775  Phacelia parryi Keith E. Hoffmaster 1937-4-25 s.n. Orange Ladd can., Santa Ana Mts. Comment
  UCR193556  Phacelia ramosissima A. C. Sanders, Fred M. Roberts 2008-7-3 35665 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  CAS-BOT-BC145004  Phacelia ramosissima var. latifolia Carl B. Wolf 1933-8-24 5389 Orange Santa Ana Mts. Summit of Santiago Pk. 1731 Comment
  RSA562749  Phacelia ramosissima var. latifolia Steve Boyd 1992-5-19 7445 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
  SD152824  Phacelia ramosissima var. latifolia Steve Boyd, Tim Ross 1992-5-19 7445 Orange Southern Santa Ana Mts,San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon from crossing of creek by Lucas Canyon Trail, downstream to confluence with Aliso Canyon. North side of conical knob at confluence with Aliso Canyon. 274 Comment
  UCR124020  Phacelia ramosissima var. ramosissima George K. Helmkamp, E. A. Helmkamp 2001-6-20 6811 Orange Peninsular Range; Santa Ana Mtns., Ortega Highway, 1.6 mi north of Lucas Cyn Rd., near Cleveland National Forest 213 Comment
  RSA759254  Phacelia suaveolens subsp. keckii Robt. Allen, Reginald Durant 2008-5-16 s.n. Orange Modjeska Peak, SW arm, along access road that leads up Modjeska Peak, about 20 m NE from junction with Main Divide Truck Trail. Survey point #63 1540 Comment
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Jul 21 2018
  UCR170305  Phalaris aquatica J. B. Anderson 1966-5-15 642 Orange South Coast, Upper Newport Bay: [Newport Beach] along Irvine Ave. at 23rd Street 15 Comment
  UCR160531  Phalaris canariensis Robert DeRuff 1992-5-29 427 Orange South Coast, Newport Back Bay, just below the bluff top in the Castaways area 15 Comment
  IRVC1780  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Irvine; MacArthur Blvd. near Red Hill Road. Southern Coastal Comment
  IRVC8437  Phalaris minor J. B. Anderson 1966-4-18 597 Orange Irvine; MacArthur Blvd. near Red Hill Road. Southern Coastal Comment
  RSA708230  Phalaris paradoxa Fred M. Roberts, Robert L. Allen, Chris Barnhill, Carol A. Roberts 2005-4-10 6163 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
  UCSB68450  Phalaris paradoxa Anderson, J. 1966-4-26 Orange University of California, Irvine; south of Science Lecture Hall Comment
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Nov 1 2018
  RSA749050  Phoenix canariensis A. C. Sanders, Fred M. Roberts 2008-8-7 36007 Orange Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  RSA296796  Pholistoma auritum Lyman Benson 1947-4-27 12339 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  RSA701967  Phoradendron macrophyllum subsp. macrophyllum Fred M. Roberts 2003-6-20 5929 Orange Rancho Mission Viejo: Donna O'Neil Land Conservancy, Cristianitos Cyn., along Shady Canyon Trail, 84 meters N Sycamore Gate and 50 meters W Cristianitos Rd. 101 Comment
  RSA660595  Phyla nodiflora R. E. Riefner 2000-8-17 20 -726 Orange NCCP North Ranch Policy Plan Area. Silverado Creek near Forest Station. 328 Comment
  RSA683932  Phyllospadix scouleri E. Yale Dawson 1957-2-14 16149 Orange Laguna Beach, Orange County Comment
  RSA683955  Phyllospadix scouleri E. Yale Dawson 1957-11-21 17886 Orange Laguana Beach, Orange County Comment
  RSA384023  Phyllospadix torreyi Anstruther Davidson 1910-6-28 2493 Orange Balboa Beach. Comment
  IRVC21696  Picris echioides Fred M. Roberts 1984-8-6 1367 Orange UC Irvine, along Adobe Circle Road, 0.9km ENE campus center; 2.3km W French Hill, Irvine 30 Comment
  IRVC872  Picris echioides D. DeVault 1965-5-1 Orange Corona del Mar, Carnation Street. Newport Beach Comment
  RSA17043  Picris echioides C. B. Wolf 1936-1-13 7696 Orange Santa Ana Canyon, Rancho Santa Ana, along R. R. right of way east of Ranch Houses. 137 Comment
  RSA184125  Picris echioides I. L. Wiggins 1965-10-18 20278 Orange Vacant lot NE corner of Chapman Ave and Victor Dr, Fullerton. Comment
  POM281848  Pilularia americana H. H. Tracy 1935-3-31 s.n. Orange Costa Mesa Comment
  SD13289  Pinus attenuata Carl B. Wolf 1934-12-21 Orange Santa Ana Mountains, northeast of Sugarloaf Peak (Pleasants Peak), along Main Street Trail 1160 Comment
  SEINET10879506  Pinus attenuata Andrew Townesmith, Karen M. Meyer; Tracy Scott 2007-3-11 Townesmith 677 Orange Cleveland National Forest. Off Long Canyon Road (Forest Service road 6S05). Near entrance to Falcon Group Camp. 1000 Comment
  UC532152  Pinus attenuata Carl B. Wolf 1934-12-21 6260 Orange ne Sugarloaf Peak (Pleasants Pk.) (along Main St. Trail); Santa Ana Mts. Comment
  CDA1425  Pinus halepensis D. G. Kelch 2006-12-9 06 .553-B Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  SEINET4690264 Image available Pinus radiata T. C. Arambula 1966-1 137 Orange Fullerton, Sunny Crest Drive at Harbor Blvd, Fullerton Comment
  RSA731000  Pinus sabiniana Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6501 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  UCR210311  Pistacia A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., near Agustine Staging Area at south foot of Blue Diamond Haul Rd. bridge over Santiago Canyon Rd. 253 Comment
  UCR103154  Plagiobothrys acanthocarpus Scott D. White 1997-3-26 4819 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
  UCSB56510  Plagiobothrys acanthocarpus Marsh, G. 1978-3-17 Orange U.C. Irvine Ecological Preserve; near eastern fence line, drainage separating Hills #1 and #2 Comment
  UCR191345  Plagiobothrys collinus A. C. Sanders, Fred M. Roberts 2008-4-8 34742 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  UCSB52455  Plagiobothrys collinus var. californicus Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Dana Point; hills, 1.0 km. N Dana Hills High School; 1.9 km. W Marco Forster Junior High School 100 Comment
  IRVC14769  Plagiobothrys collinus var. fulvescens D. Orr 1965-3-27 Orange Trabuco Rd. 3mi E El Toro Marine Base. El Toro Comment
  JEPS68105  Plagiobothrys nothofulvus Alice King 1908-1 Orange Santa Ana Comment
  RSA678450  Plantago coronopus Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary Wallace 2001-4-4 1121 -b Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA1460  Plantago erecta E. R. Johnson 1929-4-11 1260 Orange Sierra Peak Trail. Comment
  UCR106273  Plantago erecta B. G. Pitzer 1997-3-25 3024 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR192214  Plantago erecta A. C. Sanders, Fred M. Roberts 2008-5-6 35253 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
  RSA0057938  Plantago erecta Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49669 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCSB47575  Plantago erecta Roberts, Fred 1980-4-3 Orange 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA789581  Plantago erecta subsp. erecta Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] Comment
  SD247681  Plantago erecta subsp. erecta R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49653 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  RSA542454  Plantago indica Fred M. Roberts 1987-6-30 3469 Orange Bolsa Chica Salt Marsh: Pacific coast Hwy, 0.8kim SE Warner. 2 Comment
  RSA734764  Plantago lanceolata A. C. Sanders, T. B. Salvato 2008-5-13 35345 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
  SD263668  Plantago major Jim Riley 2013-10-15 120 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC1618062  Plantago major Donald G. Nelson 1935-7-15 306 Orange Costa Mesa Comment
  RSA749040  Platanus X acerifolia A. C. Sanders, Fred M. Roberts 2008-8-7 35976 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  RSA401708B  Platanus racemosa Albert J. Perkins 1915-04 s.n. Orange Santa Ana, Orange County Park. Comment
  RSA698371  Platanus racemosa Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  CAS-BOT-BC92244  Platystemon californicus D. E. Breedlove 1962-3-9 1799 Orange 4.4 miles east of San Juan Capistrano on State 74. 112 Comment
  CDA7064  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Lane and Polaris Drive. Comment
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Dec 13 2012
  OBI74940  Plecostachys serpyllifolia Unknown 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR133 on ramp 64 Comment
  SD247344  Plecostachys serpyllifolia R. E. Jr. Riefner 2008-7-9 08 220 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  UCR163915  Plecostachys serpyllifolia O. F. Clarke, Roger E. Reinke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA751480  Plecostachys serpyllifolia R. E. Riefner Jr. 2008-10-22 08 -308 Orange City of Laguna Beach, ocean bluff vicinity of West St. and Pacific Coast Highway. 4 Comment
  RSA766068  Plecostachys serpyllifolia R. E. Riefner Jr. 2007-3-18 07 -153 Orange City of Newport Beach, Dover Beach, Newport Bay, vicinity of Morning Star Ln. and Polaris Dr. 3 Comment
  RSA801997  Plectritis ciliosa Keith E. Hoffmaster 1935-5-5 971 Orange San Juan Canyon., Santa Ana Mts. Comment
  RSA232234  Pluchea odorata James Henrickson 1970-7-24 4986 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
  UCR146539  Pluchea odorata Scott D. White 2004-7-7 10605 Orange South Coast, Laguna Niguel, along Pacific Island Drive 122 Comment
  SBBG63434  Pluchea odorata var. odorata M. N. Ackley -Oct-1928 1189 Orange Huntington Beach 8 Comment
  UCR162343  Plumbago capensis Robert DeRuff 1985-1 250 Orange Southern Coast, Newport Beach, Upper Newport Back Bay, along the path from Mariners Drive to North Star Beach 30 Comment
  RSA696326  Poa annua Keith E. Hoffmaster 1927-2-17 s.n. Orange Santa Ana Comment
  IRVC15481  Poa scabrella Bruce Reynolds 1965-4-19 s.n. Orange Newport Beach; Corona del Mar, Corona Del Mar High School. Southern Coastal Comment
  IRVC22661  Poa scabrella Fred M. Roberts 1985-5-9 1722 Orange Santa Ana Mountains: Upper McVicker Canyon, 1.8km NE Los Pinos Peak. Peninsular Ranges 1113 Comment
  RSA542549  Poa secunda Fred M. Roberts 1988-2-9 3777 Orange Lomas de Santiago: Loma Ridge, 1.3 km N Bee Survey Mark., UTM 3733600m N, 434800m E 381 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
  RSA0097081  Polycarpon depressum J. Russell Bruff s.n. Orange Roadside. Comment
  UCR146882  Polycarpon tetraphyllum Kathleen Stockwell 1999-5-30 s.n. Orange South Coast, north of Cristianitos Road, San Clemente 61 Comment
  RSA425  Polygala cornuta var. fishiae J. T. Howell 1927-7-3 258 Orange Claymine Canyon near Sierra Peak. 305 Comment
  RSA791874  Polygala cornuta var. fishiae Robert F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49615 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station, lateral ravine tributary to San Juan Canyon Comment
  JEPS51306  Polygonum argyrocoleon Lawrence M. Booth 1932-7-25 1317 Orange Santa Ana River; coastal Comment
  CLARK-A1528-919  Polygonum aviculare Patricia A. Andrews 1975-6-26 5916 Orange Capistrano Bay Beach 9 Comment
  CAS-BOT-BC414043  Polygonum aviculare subsp. aviculare Ira L. Wiggins 1966-5-25 20667 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton Comment
  CAS-BOT-BC414038  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Rancho Santa Ana, Santa Ana Canyon situated around administration building 198 Comment
  CDA21557  Polygonum lapathifolium A. Thomas, Mark A. Elvin 2006-9-23 609231 Orange Southern Coastal; San Joaquin Marsh Freshwater Marsh, UC Natural Reserve; southwest edge, along San Diego Creek, north of University Drive, east of Highway 73. Comment
  RSA731907  Polygonum lapathifolium Fred M. Roberts, Sandy Leatherman 2007-11-27 6672 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
  UC536916  Polygonum lapathifolium Lawrence M. Booth 1932-6-28 1221 Orange Bolsas Marsh Comment
  UC729856  Polygonum lapathifolium Carl B. Wolf 1932-7-7 3835 Orange Bixby Ave. 100 ft w Hansen Road; Bryant Ranch Comment
  IRVC3043  Polypodium californicum C. Thompson 1965-4-15 HS0570 Orange Trabuco Canyon. Santa Ana Mountains Comment
  POM188245  Polypodium californicum Marcus E. Jones 1931-3-23 20425 Orange Laguna Comment
  RSA689928  Polypodium californicum Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  UCSB47608  Polypodium californicum Roberts, Fred 1980-5-3 Orange Santa Ana Mtns., San Juan Cayon near mouth of Viejo Canyo, below Rte. 74, 2.5km by road ENE San Juan Guard Station, 0.5km WSW Bm 1100 288 Comment
  UCSB62516  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., San Juan Canyon, 2nd ravine W of entrance to lower San Juan Camp, just S of Hwy 74. 426 Comment
  IRVC23141  Polypogon interruptus Fred M. Roberts 1985-7-10 2006 Orange Capistrano Beach: San Juan Creek, 0.5km from the ocean, 0.2km N of Pacific Coast Highway. southern coastal 2 Comment
  CAS-BOT-BC237264  Polypogon monspeliensis Carl B. Wolf 1932-7-2 3819 Orange Carbon Canyon, 1/8 mile below La Vida Springs 213 Comment
  IRVC1809  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  IRVC1810  Polypogon monspeliensis J. B. Anderson 1966-4-22 607 Orange San Joaquin Hills: Los Trancos Canyon, along dirt road and near spring. Santa Ana Mountains 122 Comment
  IRVC1814  Polypogon monspeliensis Ray Harbour 1965-3-23 s.n. Orange Corona del Mar. southern coastal Comment
  IRVC21785  Polypogon monspeliensis Fred M. Roberts 1985-2-25 1456 Orange Irvine: Irvine Ranch; east of MacArthur Blvd., 1.2km W UCI campus; 1.7km SE Bay View School. Southern Coastal 24 Comment
  IRVC29711  Polypogon monspeliensis Mark A. Elvin, Barry S. Nerhus 2006-11-4 5247 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  JEPS70690  Polypogon monspeliensis L. M. Booth 1932-5-12 1044 Orange Newport Bay Comment
  SEINET237156 Image available Polypogon monspeliensis Scott D. White, Brain Leatherman 1997-6-12 5316 Orange Santa Ana Mtn foothills. East of San Juan Capistano: San Juan Creek between Highway 74 bridge and Mission Vieja site 46 Comment
  UCR138411  Polypogon monspeliensis Scott D. White, Brian Leatherman 1997-6-12 5316 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
  UCR174022  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33055 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA0045355  Polypogon monspeliensis Keith E. Hoffmaster 1935-3-28 119 Orange West of Costa Mesa. Comment
  RSA697034  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa Comment
  CAS-BOT-BC237507  Polypogon viridis Le Roy Abrams 1901-6-12 1760 Orange Santa Ana River Comment
  SEINET6654152  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr. 2007-6-12 07 -253 Orange City of San Juan Capistrano, vicinity of Calle Arroyo/Paseo Esteban at San Juan Creek.; 0 152 Comment
  UCR138393  Populus balsamifera subsp. trichocarpa Scott D. White, Brian Leatherman 1997-6-12 5327 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
  RSA5327  Populus fremontii B. D. Stark 1932-12-30 4468 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA731957  Populus fremontii subsp. fremontii Fred M. Roberts 2007-12-12 6700 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
  UCR215294  Populus fremontii subsp. fremontii Fred M. Roberts 2008-5-20 6991 Orange Lomas de Santiago, Santiago Creek wash north of Hangman Tree Road near confluence of Pancho Canyon, 1.6 km NW of Bolero Lookout. Irvine Ranch Conservancy. 349 Comment
  JEPS117746  Populus trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Santa Ana Mtns: Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Comment
  RSA133  Populus trichocarpa J. T. Howell 1927-7-21 451 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA599636  Populus trichocarpa Fred M. Roberts Jr., P. Barrett, Gina Schultz 1995-7-25 4965 Orange San Juan Capistrano: San Juan Creek, 0.1 km SW La Novia Street bridge. 27 Comment
  SD247501  Populus trichocarpa R. E. Riefner Jr. 2012-9-23 12 512 Orange City of Yorba Linda, Santa Ana Canyon, N side of Santa Ana River, La Palma Ave at Via Del Rio Road. 103 Comment
  CAS-BOT-BC445243  Portulaca oleracea Ira L. Wiggins 1965-11-3 20313 Orange East side of California State College campus, between State College Blvd and Placentia Avenue, Fullerton. Comment
  CAS-BOT-BC452120  Potamogeton crispus Johnston 1919-5-15 2785 Orange Santa Ana River Comment
  POM1018  Potamogeton nodosus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  CAS-BOT-BC453919  Potamogeton pectinatus Street; Williams 1919-5-4 2690 Orange Laguna Beach Region. Laguna Lakes Comment
  UC1128385  Prunus ilicifolia A. Lewis Apr 1934 384 Orange Harding Canyon; Cleveland National Forest 762 Comment
  JEPS29201  Pseudognaphalium biolettii Rimo Bacigalupi and P. C. Hutchison 1962-3-16 8235 Orange 2 mi n Doheny Beach State Park; U.S. Highway 101 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
  RSA696917  Pseudognaphalium biolettii Anonymous s.n. Orange Orange County park Comment
  UCR222874  Pseudognaphalium biolettii T. B. Salvato 2010-10-27 5134 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 Comment
  UCR50083  Pseudognaphalium biolettii B. G. Pitzer, D. C. Hawks 1986-10-21 347 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
  SEINET9307949  Pseudognaphalium californicum Unknown 1996-5-11 19 Orange Newport Back Bay, 25 yrds in along bike path. Dry coastal mudflat dominated by Typha. Comment
  SD187362  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 55 Orange San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. 29 Comment
  SD263581  Pseudognaphalium leucocephalum Jim Riley 2013-10-15 122 Orange San Clemente area; 0.56 miles ESE intersection Avenida Pico and Camino La Pedriza; just N San Diego County line 68 Comment
  UC1922345  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2007-2-13 07 -55 Orange City of San Juan Capistrano, vicinity of La Novia Ave. and San Juan Creek. Comment
  JEPS34056  Pseudognaphalium stramineum Alice King 1908-4-1 Orange Santiago Creek Comment
  UCR281475  Pseudognaphalium stramineum Mitch Provance 2017-6-9 617- 98 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  IRVC2822  Pseudotsuga macrocarpa A. S. Boughey 1965-3-16 75 Orange Santa Ana Mtns: Silverado Cyn. Peninsular Ranges Comment
  MACF020379  Pseudotsuga macrocarpa B. Thomas 1967-12-22 57 - Orange Santiago Park; Santa Ana Mountains 1523 Comment
  RSA716772  Pseudotsuga macrocarpa Fred M. Roberts, Michelle Balk, Robert Allen, Megan Enright 2004-7-18 6256 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  RSA562803  Psilocarphus tenellus Steve Boyd 1992-5-19 7426 Orange Southern Santa Ana Mountains San Mateo Canyon Wilderness Area. Western edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon,. 366 Comment
  UCR27153  Psilocarphus tenellus E. W. Lathrop 1966-4-10 6155 Orange Peninsular Range; Santa Ana Mtns, Silverado Canyon 732 Comment
  IRVC27016  Psilotum nudum A. C. Sanders, Mark A. Elvin 2003-11-9 27356 Orange Irvine: UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. Southern Coastal 15 Comment
  IRVC3171  Pteridium aquilinum var. pubescens T. Baskin 1965-4-29 Orange Doheney St. Pk. Dana Point or Capistrano Beach Comment
  RSA542463  Pterostegia drymarioides Fred M. Roberts 1987-3-27 3279 Orange Canada De Los Alisos: above Canada Rd., 4.5 km NNE El Toro Fire Station. 226 Comment
  OBI5232  Pulicaria paludosa T. C. Fuller 1993-10-9 11362 Orange Santa Ana cyn, 0.1 mi S of riverside fwy to Anaheim, ca 2 mi W of the Riverside Co. line Comment
  SEINET10758120  Pulicaria paludosa Peter H. Raven 2009-8-29 Raven 28670 Orange Irvine, SE corner of intersection of Jamboree and MacArthur. Comment
  UCR95587  Pulicaria paludosa P. H. Raven 1961-10-15 16857 Orange Dike along road to Yorba Linda, just north of US Hwy 91 114 Comment
  RSA573294  Pycnanthemum californicum Steve Boyd, T. S. Ross 1994-9-14 8351 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucus Canyon Trail crossing. 311 Comment
  UCD47667  Quercus X acutidens G. A. Marsh 1980-5-8 s.n. Orange Crystal Cove State Park: Moro Canyon. Comment
  UCSB52413  Quercus X acutidens 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
  POM256729  Quercus X grandidentata W. Pequegnat 1940-6-18 s.n. Orange About 1 mile NW Sierra Peak. Santa Ana Mts. 762 Comment
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Aug 2 2020
  UCSB48077  Quercus agrifolia var. agrifolia Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Station 96 Comment
  IRVC16619  Quercus berberidifolia Gordon A. Marsh, Karlin G. Marsh 1977-9-1 s.n. Orange Mission Viejo: Jeronimo Springs. Southern Coastal Comment
  IRVC23335  Quercus berberidifolia Fred M. Roberts 1983-3-16 913 Orange Laguna Beach: Sycamore Hills, near El Toro Road, 1.2km NNE jct. El Toro and Laguna Canyon Roads; 5.4km ESE Signal Peak. Southern coastal 112 Comment
  RSA7576  Quercus berberidifolia E. R. Johnson 1933-11 5559 Orange Rancho Santa Ana. Comment
  RSA7679  Quercus berberidifolia Carl B. Wolf 1933-11-8 5537 Orange Trabuco Canyon along the Trabuco Truck trail Canyon. 915 Comment
  UCR208107  Quercus berberidifolia D. E. Bramlet 2000-4-13 2980 Orange Penninsular Ranges: Santa Ana Mountains, upper east Blind Canyon; 30 m south of the Blind Canyon access road and beneath SCE transmission lines; 854 m northwest of the Fremont Canon ridge road Comment
  UCR228787  Quercus berberidifolia Dick Newell, Don Millar 2011-5-3 142 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  RSA0044655  Quercus berberidifolia Leo Miller 1938-3-26 s.n. Orange Near top of Saddleback Mountain. Comment
  RSA584719  Quercus dumosa Fred M. Roberts, Wade 1989-6-21 4391 Orange San Joaquin Hills; Los Trancos Canyon, 1km E summit of Pelican Hill. 98 Comment
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Oct 16 2013
  RSA659555  Quercus dumosa P. Shirokawa 1998-5-7 22 Orange Cleveland National Forest- Trabuco Ranger District, 3.2 miles from Ortega Highway (State Highway 74) on North Main Divide Road 1021 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
  IRVC19904  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  UCD46912  Quercus lobata G. A. Marsh 1980-5-8 s.n. Orange Crystal Cove State Park: Moro Canyon. Comment
  RSA716771  Quercus wislizeni Fred M. Roberts, Michelle Balk, Robert Allen, Carol Roberts 2004-7-18 6076 Orange Santa Ana Mtns.: Upper Trabuco Cyn. along Trabuco Cyn. Trail, 1.3km NE Los Pinos Pk. and c.a. 0.25km by trail from Main Divide Truck Trail. 1245 Comment
  UC1135890  Quercus wislizeni A. Lewis Mar 1934 363 Orange Head of Silverado Canyon Cleveland National Forest, Corona Quad. 1112 Comment
  IRVC16147  Quercus wislizeni var. frutescens R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges Comment
  IRVC25093  Quercus wislizeni var. frutescens Fred M. Roberts, Gordon A. Marsh 1986-8-27 3114 Orange Modjeska Peak; Main Divide Truck Trail; SW ridge; 1.0km SW summit Santa Ana Mountains 1530 Comment
  UCR144740  Quercus wislizeni var. frutescens Gordon Marsh, Karlin G. Marsh 1985-9-27 s.n. Orange Santa Ana Mtns., Pine Canyon, 4.1 km NW of Modjeska Peak 805 Comment
  RSA220970  Rafinesquia californica E. W. Lathrop 1966-4-18 6178 Orange 4 mi NE of Lake Irvine, Black Star Canyon, Cleveland National Forest, Trabuco District. Comment
  RSA0058056  Rafinesquia californica Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49605 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  RSA0115998  Ranunculus Andrew C. Sanders, Fred M. Roberts 2008-4-8 34765 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA724035  Ranunculus arvensis R. E. Riefner 2000-4-2 0 -166 Orange Santiago Equestrian Center, Santiago Canyon Rd., N 0.5 m from Ridgeline Rd., Oso Creek drainage. 392 Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon 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
  IRVC1150  Raphanus sativus R. Nesheim 1965-4-10 Orange Bayside Dr. near Balboa Island. Newport Beach Comment
  IRVC1161  Raphanus sativus L. Stilgenbauer 1965-4-10 Orange Corona del Mar, 339 Milford Dr.; in canyon. Newport Beach Comment
  RSA685139  Rhamnus alaternus Roger Reinke 2003-2-18 s.n. Orange South Coast: Newport Back bay, Big Canyon. 30 Comment
  UCR126264  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 Comment
  UCR26626  Rhamnus californica E. W. Lathrop 1966-5-1 6260 Orange Santa Ana Mtns., 5 mi east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 400 Comment
  UCR119298  Rhamnus californica subsp. californica R. E. Riefner Jr. 2000-8-3 20- 711 Orange Santa Ana Mountains, North Ranch Policy Plan Area, east of Main Divide Road and Windy Ridge 535 Comment
  CAS-BOT-BC56027  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  CAS-BOT-BC56030  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W. slope Santa Ana Mts., Trabuco Canyon, 1/2 mi. above Trabuco Oaks 457 Comment
  CAS-BOT-BC56033  Rhamnus ilicifolia P. C. Everett 1936-9-19 8269 Orange Santa Ana Mts., Silverado Canyon, in vicinity of Forest Service Gate at base of road 762 Comment
  CAS-BOT-BC56041  Rhamnus ilicifolia John Thomas Howell 1927-6-17 2548 Orange hills on north side of Santa Ana Canyon 152 Comment
  OBI5868  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1841 Orange W sloep Santa Ana Mts, Trabuco cyn, 1/2 mi above Trabuco oaks 457 Comment
  POM243762  Rhamnus ilicifolia Percy C. Everett 1935-6-19 7242 Orange Trabuco Canyon, 2 mi. below forest service patrol station 366 Comment
  RSA17465  Rhamnus ilicifolia Percy C. Everett 1936-9-19 8269 Orange Silverado Canyon, in vicinity of forest service gate at base of road. 762 Comment
  RSA734856  Rhamnus ilicifolia A. C. Sanders, Mitch Provance 2008-5-20 35403 Orange Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile below Modjeska Canyon confluence 345 Comment
  UC1121846  Rhamnus ilicifolia R. St. John 1931-2-25 188 Orange Potreros Los Pinos Elsinore Quad. 762 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
  SD255269  Rhamnus ilicifolia Robert F. Thorne, E. W. Lathrop 1977-5-18 49724 Orange Santa Ana Mountains: Bear Spring (east slope of Santiago Peak) Comment
  UCR241070  Rhus aromatica Dick Newell, Judy Booth 2013-3-24 322 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, on Maple Springs Rd./Silverado Cyn. Rd., 1.5 miles above Maple Springs gate 673 Comment
  CAS-BOT-BC170435  Rhus integrifolia Helen D. Geis 1902-4-1 s.n. Orange Red Hill near Santa Ana Comment
  POM257050  Rhus integrifolia W. Pequegnat 1940-5-26 s.n. Orange Black Star Canyon, Santa Ana Mts. 609 Comment
  RSA17492  Rhus integrifolia Ramon Valverde 1936-8-31 8237 Orange Rancho Santa Ana Botanic Garden.Wild plants in Pine Canyon. Comment
  SD39754  Rhus integrifolia Edith A. Purer 1932-8-31 4875 Orange Along Route 101 Comment
  SJSU375  Rhus integrifolia A. W. Jacobs 1938-8-4 Orange Trabuca Canyon Rd, Santa Ana Mts c. 6.5 mi NE of El Toro Comment
  UCD116869  Rhus integrifolia Ronni Stachelek; Bob Anderson, Frances Schropshire 1995-3-1 36 Orange Newport Beach, W side Upper Newport Bay adjacent to Santa Ana Delhi Channel, ca. 100 m. W of footbridge. Comment
  UCR145989  Rhus integrifolia June Latting 1977-1-12 s.n. Orange Chino Hills, Tonner Canyon 213 Comment
  UCR159782  Rhus integrifolia Peter A. Bowler 2003-4-26 s.n. Orange Southern Coastal, UC San Joaquin Freshwater Marsh Reserve; along marsh road 5 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
  UCR131883  Rhus laurina J. Mallory, V. McCoy 1995-7-3 6454- 83 Orange Santa Ana Mountains: N-facing slope in Santiago Canyon, c. 0.5 mi. east of Santiago Canyon Rd; near Irvine Park 200 Comment
  RSA731004  Rhus ovata Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6506 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. Abandoned homestead with persistant conifer plantings, some species spreading into surrounding chaparral. 852 Comment
  SEINET10634921  Rhus ovata Greg Gust, Leith Nye 2005-3-12 Gust 567 Orange Cleveland National Forest, on Hwy 74 ca. 0.5 m W of county boundary with Riverside at a pullout. 401 Comment
  RSA696475  Rhus trilobata J. Vlahos 1974-04 s.n. Orange Holy Jim canyon Comment
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Mar 6 2011
  RSA0022442  Ribes amarum Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49777 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA304731  Ribes californicum var. hesperium Jim R. Shevock 1972-1-16 1333 Orange Santiago Road, Santa Ana. 915 Comment
  RSA787499  Ribes californicum var. hesperium Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49707 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  UC484234  Ribes californicum var. hesperium C. B. Wolf 1931-1-30 1824 Orange Claymine Canyon Santa Ana Mts. 457 Comment
  LA205443  Ribes indecorum W. Pequegnat; 1938-3-19 sn Orange Santa Ana Mountains, Holy Jim Canyon 1158 Comment
  OBI5870  Ribes indecorum Carl B. Wolf 1931-3-6 1861 Orange 1 mi N of base of Modjeska Grade, W slope of Santa Ana mts 305 Comment
  RSA101789  Ribes malvaceum var. viridifolium R. Weatherby 1950-2-25 1030 Orange Harding Canyon, Santa Ana Mts. 762 Comment
  RSA3132  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 2662 Orange Canyon W of Roundtop, Rancho Santa Ana. 457 Comment
  RSA441490  Ribes malvaceum var. viridifolium Anstruther Davidson 1977-5-18 5623 Orange Santa Ana Mts, Cleveland National Forest, Bear Springs. 1220 Comment
  RSA732251  Ribes malvaceum var. viridifolium A. C. Sanders, Fred M. Roberts 2008-4-22 35037 Orange Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 366 Comment
  SD247657  Ribes malvaceum var. viridifolium R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 46706 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  RSA101786  Ribes speciosum R. Weatherby 1950-2-25 1028 Orange Eagle Canyon, Santa Ana Mts. 701 Comment
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Nov 18 2013
  RSA13078  Ribes speciosum Carl B. Wolf 1935-8-1 7562 Orange Claymine Canyon, Santa Ana Mts. Comment
  RSA30506  Ribes speciosum B. D. Stark 1930-1-28 11209 Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  RSA351  Ribes speciosum J. T. Howell 1928-3-18 888 Orange Aliso Canon [Canyon], Rancho Santa Ana. 229 Comment
  RSA454953  Ribes speciosum M. B. Dunkle 1934-2-19 3840 Orange San Juan Canyon. 427 Comment
  RSA539409  Ribes speciosum Fred M. Roberts, Karlin G. Marsh 1989-3-7 4198 Orange Lomas De Santiago: Lomas Ridge, Tributary to Hicks Canyon, 2.3 km W Bee canyon. 157 Comment
  RSA602110  Ribes speciosum Scott D. White 1997-5-6 5038 Orange Santa Ana Mountians, Santiago Canyon Area: Unnamed tributary to Santiago Creek flowing from the SW, directly W of Pancho Canyon . Lomas de Santiago S179. 366 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
  UCR140796  Ribes speciosum Robin G. Marushia 2004-5-4 016 Orange Southern Coast, Crystal Cove State Park, interior of El Moro Canyon, east side of canyon, utility pole turnout above riparian area crossing 183 Comment
  UCR5952  Ribes speciosum David M. Peterson 1966-3-9 660309- 08 Orange 3 mi east of San Juan Capistrano on the road to Elsinore 306 Comment
  POM9825  Ribes speciosum P. A. Munz, R. D. Harwood 1920-4-24 3741 Orange Sierra [Freemont] Canyon, Santa Ana Mts. 366 Comment
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Sep 17 2011
  RSA658639  Ricinus communis E. Jordan 1969-5-15 32 -1 Orange Waste area, at intersection of Valley View & Avolenia Drs. Fullerton. Comment
  HSC87017  Romneya coulteri K. Kimberly 1988-5-29 13 Orange Cleveland National Forest, Jackson Rd., .2 mi. from intersection with S-18, 2.8 mi. SW of Irvine Lake 152 Comment
  JEPS51547  Romneya coulteri John Thomas Howell 1927-7-22 2833 Orange Santa Ana Mountains, Claymine Canyon Claymine Canyon; Santa Ana Mountains, Claymine Canyon 182 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
  UCR23130  Romneya coulteri Sue Damon 1981-5-31 32 Orange One half mile SW of intersection of Peralta Hills Dr. and Cerro Vista Rd 335 Comment
  RSA449735  Rosa californica F. R. Fosberg 1931-6-21 S 5132 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA542400  Rosa californica Fred M. Roberts 1988-3-15 3862 Orange Rancho Mission Viejo: Upper Gabino Canyon, 3.9km ESE Point Rancho Survey Mark. 206 Comment
  UCR236676  Rosa californica Fred M. Roberts 2008-6-12 7038 Orange Santa Ana Mtns. Foothills, Lomas de Santiago; Loma Ridge, Shoestring Canyon, Shoestring Road near jct. with Santiago Cyn. Rd. 251 Comment
  IRVC26433  Rosa minutifolia Mark A. Elvin 2004-2-22 3149 Orange UCI Arboretum Southern Coastal 15 Comment
  UCD125433  Rosmarinus officinalis A. C. Sanders 1990-10-6 10220 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  JEPS47286  Rubus pensilvanicus Lawrence M. Booth 1932-7-19 1271 Orange Bolsas Creek Comment
  RSA681861  Rumex acetosella Scott D. White, Michael Honer 2003-6-12 9540 Orange Southwestern Santa Ana Mtn. Foothills: Rancho Mission Viejo. Upper end of Trampas Canyon. 152 Comment
  UC536918  Rumex conglomeratus Lawrence M. Booth 1932-6-9 1178 Orange 1 mi from ocean Santa Ana River Canal Comment
  UCR173937  Rumex conglomeratus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33006 Orange Peninsular Range; Santa Ana Mtns., San Juan Canyon, from Lower San Juan Picnic Area to c. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  OBI41039  Rumex crispus Unknown, With Melissa Thorme 1983-11-23 20 Orange Adj to the S most housing tract in Corona Del Mar Comment
  RSA527694  Rumex crispus Tim S. Ross, Annette H. Ross 1991-6-3 5520 Orange Elephant Hill: northernmost point of the Puente Hills complex. 296 Comment
  RSA5827  Rumex crispus Carl B. Wolf 1932-6-28 3795 Orange Bryant Ranch, north boundary of field. 9 Comment
  RSA698483  Rumex hymenosepalus R. H. McArthur 1934-3-17 s.n. Orange Gypsum Canyon. Comment
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Dec 6 2008
  POM201764  Rumex maritimus L. M. Booth 1932-6-28 s.n. Orange Bolsas Marsh. Comment
  POM186339  Rumex maritimus Joseph A. Ewan 1932-7-29 7734 Orange Lagoon in back of Newport Beach, above Tule marsh. Comment
  RSA734984  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  UCR193385  Rumex salicifolius A. C. Sanders, T. B. Salvato 2008-5-13 35386 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
  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
  SBBG72640  Salicornia pacifica M. N. Ackley 1928-9-22 418 Orange Sunset Beach 8 Comment
  UCSB36208  Salicornia pacifica Ferren, Wayne 1980-8-27 Orange W side of Backbay Drive ca. 1.5 km. NE of Rt. 1, Newport Backbay, Newport Beach Comment
  UCR14054.1  Salicornia subterminalis Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  JEPS73722  Salicornia virginica L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2043 Orange n of Newport Beach (across U.S. Highway 101 from Huntington State Beach); Bolsas Marsh Comment
  POM201915  Salicornia virginica L. M. Booth 1932-8-5 1357 Orange Bolsas Marsh. Comment
  POM201953  Salicornia virginica L. M. Booth 1932-6-9 1182 Orange Newport Bay. Comment
  RSA33609  Salicornia virginica N. C. Cooper 1942-11-9 887 Orange Balboa. Comment
  UCR108429  Salicornia virginica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay, Newport Bay 5 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
  RSA478905  Salicornia virginica E. S. Spalding 1923-11-29 s.n. Orange Near Capistrano. Comment
  JEPS38488  Salix exigua Alice King Apr. 1908 Orange near Santa Ana; Santa Ana River Comment
  RSA679089  Salix exigua Fred M. Roberts 2003-7-24 5970 Orange San Juan Capistrono: San Juan Creek, c.a. 0.1 km NE La Novia Bridge. Along creek on cobbly sand of wash in open southern willow scrub and mulefat scrub. 27 Comment
  SJSU190  Salix exigua C. B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana on Bixby Ave, 1 km W of Hansen Rd near Los Alamitos 7 Comment
  UC537274  Salix exigua var. hindsiana Lawrence M. Booth 1932-7-19 1281 Orange Bolsas Marsh Comment
  LA208663  Salix gooddingii Carl B. Wolf; 1932-4-8 2950 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, at SE corner of pear orchard in Botanic Garden 36 Comment
  RSA658950  Salix gooddingii Caralisa Breidenbaugh, Mark Breidenbaugh 1992-5-15 21 Orange 1/2 mile south of Chino Hills State Park. 168 Comment
  SJSU207  Salix gooddingii Carl B. Wolf 1932-4-8 2950 Orange SE corner of pear orchard, Rancho Santa Ana, near R, Santa Ana Canyon 137 Comment
  UCR193026  Salix gooddingii A. C. Sanders, Fred M. Roberts 2008-6-17 35515 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  CAS-BOT-BC108201  Salix hindsiana John Harrington 1932-6-1 s.n. Orange San Juan Capistrano Comment
  RSA0034661  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-4-15 2954 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon. 120 Comment
  LA208697  Salix laevigata Carl Hedin; Joseph Ewan 1932-7-9 7683 Orange Santa Ana River 8 km below Prado (Rincon) [Area 7] Comment
  RSA735353  Salix laevigata R. H. McArthur 1934-3-1 s.n. Orange Santa Ana River at 1st Street. Comment
  UC506451  Salix laevigata Carl Hedin and Joseph Ewan 1932-7-9 7683 Orange 8 km. below Prado (Rincon) (Santa Ana R.); Santa Ana R. Comment
  UCR195007  Salix laevigata A. C. Sanders, Fred M. Roberts 2008-8-7 35984 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
  RSA650637  Salix laevigata var. laevigata Daniel Truong 1991-5-13 25 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  POM362640  Salix lasiolepis Marcus E. Jones 1930-2-2 s.n. Orange Near Laguna. Comment
  RSA362783  Salix lasiolepis Louis C. Wheeler 1934-1-14 2366 Orange Aliso Creek near Laguna. 76 Comment
  RSA542509  Salix lasiolepis Fred M. Roberts Jr., W. R. Ferren 1987-4-8 3357 Orange Newport Beach: Upper Newport Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  RSA542511  Salix lasiolepis Fred M. Roberts Jr. 1987-3-31 3329 Orange Lomas de Santiago: Lomas Ridge, Upper Serrano Canyon east fork, 2.5 km SE Bolero Lookout. 369 Comment
  RSA700177  Salix lasiolepis R. H. McArthur 1934-2-8 s.n. Orange Santiago Creek at Bristol Comment
  RSA759169  Salix lasiolepis A. C. Sanders 2008-5-28 35444 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  RSA0070789  Salix lasiolepis CNPS Accuracy Assessment Team 2014-4-30 1123 Orange Peters Canyon Regional Park. Comment
  UC2061640  Salix lucida subsp. lasiandra R. E. Riefner Jr. 2009-11-9 09 -243 Orange City of Yorba Linda, Santa Ana Canyon, Santa Ana River bottom, E of Weir Canyon Road, between Horseshoe Bend and vicinity of La Palma Ave. and Mercado del Rio. Comment
  CAS-BOT-BC126302  Salix sessilifolia John Thomas Howell 1927-6-6 2440 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA696279  Salsola kali var. tenuifolia Keith E. Hoffmaster 1927-5-30 s.n. Orange Santa Ana. Comment
  UCLA55680  Salvia C. Epling and H. Lewis 1940-4-21 Orange 6 mi e San Juan Capistrano Comment
  RSA542479  Salvia apiana Fred M. Roberts 1988-5-13 3972 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon near spring, 2.3 km NW Bolero Lookout. 439 Comment
  UC1124655  Salvia apiana A. Lewis 1934-5-1 434 Orange Los Pinos Peak; Cleveland National Forest, Elsinore Quad. 1036 Comment
  UCR188932  Salvia clevelandii Robert DeRuff 2005-5-25 556 Orange Newport Beach, Upper Newport Bay, draw on bluff south of the Interpretive Center near end of Del Mare Avenue 20 Comment
  JEPS62669  Salvia columbariae Alice King 1908-4-19 Orange Santa Ana Mts. Comment
  RSA649076  Salvia columbariae var. columbariae Karl Price 1988-4-29 25 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
  JEPS62728  Salvia leucophylla Frank W. Peirson 1927-6-20 7349 Orange Rancho Santa Ana; Mrs. Bryant's 182 Comment
  RSA550598  Salvia leucophylla Fred M. Roberts 1989-4-26 4316 Orange Lomas de Santiago: Lower Santiago Canyon, 10.1 km SW Sierra Peak, ca. 1.3 km NW Irvine Lake spillway. 195 Comment
  CAS-BOT-BC229976  Salvia mellifera John Thomas Howell 1927-6-8 2459 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  HSC14367  Salvia mellifera T. L. Ackerman 1964-3-28 10 Orange Irvine Park Dr. inside Irvine Park Comment
  RSA657744  Salvia mellifera Ken Greby 1985-4-18 16 Orange alongside Laguna Canyon Rd. 100 m. N of L. C. R., 2.5 km. NE of El Toro Rd. 53 Comment
  UCR252217  Salvia mellifera Amanda C. Swanson 2013-4-21 22 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  UCR83406  Salvia mellifera Jan West 1994-4-5 s.n. Orange Upper Bluebird Canyon, SE of Laguna Beach, at a park in the hills east of the head of Bluebird Canyon Road and east of housing developments. Comment
  RSA751396  Salvinia minima Rick E. Riefner Jr. 2008-7-9 8 -219 Orange City of Laguna Beach, bluff area W of West St. and Pacific Coast Highway. 4 Comment
  CSUSB687  Sambucus cerulea Nancy Robb 1966-4-15 Orange 4 miles southeast of Yorba Linda, 500 yards off Santa Ana Canyon Road. 121 Comment
  CSUSB696  Sambucus mexicana Cesareo Perez 1971-5-4 Orange South Mesa Drive and Lemon Street in Villa Park Comment
  IRVC334  Sambucus mexicana B. Mawdsley 1965-5-2 Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  IRVC9374  Sambucus mexicana R. Yarnell 1966-4-29 146 Orange Carbon Canyon near La Vida Mineral Springs. Chino Hills Comment
  JEPS12740  Sambucus mexicana L. M. Booth 1932-5-27 1127 Orange Newport Bay Comment
  RSA751420  Sambucus mexicana A. C. Sanders, Fred M. Roberts 2008-7-3 35691 Orange 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 275 Comment
  UCR177691  Sambucus mexicana Fred M. Roberts 2003-5-1 5684 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.60 km SSW Gato Gate and 0.16 km west of Cristianitos Rd. 93 Comment
  RSA747631  Sambucus nigra Fred M. Roberts 2008-5-8 6944 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 65 Comment
  CAS-BOT-BC238829  Sambucus nigra subsp. caerulea C. B. Wolf 1931-7-25 2293 Orange Above the irrigation canal, just north of Mexican houses, Rancho Santa Ana, Santa Ana Canyon 121 Comment
  POM201856  Samolus parviflorus L. M. Booth 1932-7-19 s.n. Orange Bolsas Marsh. Comment
  UC537262  Samolus parviflorus Lawrence M. Booth 1932-7-19 1284 Orange Bolsas Marsh Comment
  RSA588796  Sanicula arguta Fred M. Roberts, Dave Bontrager 1990-4-18 4564 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holding), 5.5 km SE Playa Survey Marker. 152 Comment
  UC566881  Sanicula arguta H. L. Mason 1926-4-25 2924 Orange 5 mi s of Laguna Comment
  UCR191777  Sanicula bipinnatifida A. C. Sanders, Fred M. Roberts 2008-3-25 34569 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
  RSA48923  Sanicula crassicaulis P. A. Munz 1949-5-26 13380 Orange Head of Sierra [Freemont] Canyon, Santa Ana Mountains. 732 Comment
  UC1022513  Sanicula crassicaulis C. Ritchie Bell 1953-2-22 3 X482 Orange 5 mi ne of Mission Capistrano (s of Cal Hwy 79) Comment
  POM9089  Sanicula crassicaulis P. A. Munz, R. D. Harwood 1920-4-24 3762 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  RSA606429  Sanicula crassicaulis Jon E. Keeley 1994-4-5 25279 Orange First year burn, east end of Caspers Park S-7 (Keeley 1994) 215 m. 215 Comment
  SEINET13945251 Image available Sanicula tuberosa Kay Raeder 1955-1 494 Orange Just above Flying Cow Ranch, San Jose Hills, Alt 1500 ft. 457 Comment
  RSA725514  Schinus molle Fred M. Roberts, Robert L. Allen 2007-9-28 6616 Orange Lomas de Santiago: above lower Santiago Cyn. wash along Santiago Cyn. Rd. just south of Irvine Mesa, 3.3 km N Bolero Lookout. 332 Comment
  RSA649321  Schinus terebinthifolius Trudy R. Ericson 1976-4-1 22 Orange Along South Campus Drive, north of greenhouse enclosure, Campus, Califonia State University, Fullerton. 68 Comment
  UCR217463  Schinus terebinthifolius Mark A. Elvin 2003-2-23 2310 Orange South Coast, Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  IRVC1823  Schismus barbatus I. L. Wiggins 1966-2-18 20 448 Orange Rancho Santa Ana: roadside 1/2 mile W of entrance to Rancho Santa Ana near the end of Orange County road at the end of Orangethorpe Avenue. Santa Ana Mountains Comment
  IRVC20382  Schismus barbatus Fred M. Roberts 1983-3-16 910 Orange Laguna Beach: Sycamore Hills, central ridge, 1.1km NNE jct. El Toro and Laguna Canyon Rds.; 5.4km [ESE] Signal Peak. Southern Coastal 156 Comment
  IRVC21985  Schismus barbatus Fred M. Roberts, Gordon Marsh 1985-3-12 1530 Orange mesa west of Ave. Pico and north of El Camino Real, 3.2km SSE Coyote Bluff; 0.6km E Bench Mark 16 (sect. 32), San Clemente 37 Comment
  RSA0057936  Schismus barbatus Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49667 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UC116275  Schoenoplectus acutus var. occidentalis unknown Jun 1920 Orange St. Ana Comment
  RSA797438  Schoenoplectus americanus Keith E. Hoffmaster 1927-6-13 s.n. Orange Santa Ana. Comment
  CAS-BOT-BC111264  Schoenoplectus californicus Mrs. M. T. Bradshaw 1901-11-1 s.n. Orange Orange, Orange County. Comment
  POM1390  Schoenoplectus californicus D. L. Crawford 1916-7-26 s.n. Orange Laguna Canyon. Comment
  RSA357142  Schoenoplectus californicus Robert F. Thorne 1975-4-6 45579 Orange Head of Newport Bay. Comment
  RSA731914  Schoenoplectus californicus Fred M. Roberts, Sandy Leatherman 2007-11-27 6665 Orange Anaheim: Santa Ana River, Santa Ana Canyon, just west of Horseshoe Bend on S side of E La Palma Ave., about 0.3km E Weir Cyn. Rd. bridge. 100 Comment
  RSA0071942  Schoenoplectus californicus CNPS Accuracy Assessment Team 2014-5-9 9346 Orange Loma Ridge West. Comment
  POM1400  Schoenoplectus maritimus Phillip A. Munz 1918-5-4 2226 Orange Laguna Canyon. Comment
  POM21177  Schoenoplectus maritimus Helen D. Geis s.n. Orange Peat Lands Comment
  CAS-BOT-BC111820  Schoenoplectus tabernaemontani Helen D. Geis 1902-11-1 s.n. Orange Santa Ana Peat lands. Comment
  UC840666  Scirpus californicus P. A. Munz 1922-9-2 6351 Orange Laguna Canyon 45 Comment
  RSA564319  Scrophularia californica B. Pitzer, S. Hemstreet 1992-5-21 1944 Orange Cleveland National Forest. Sate Hwy 74, 1 mi. uphill from the 2000 ft. marker, and to the left ca. 1 mi. on an old paved rd. 762 Comment
  RSA425208  Scrophularia californica subsp. floribunda F. R. Fosberg 1931-6-21 S- 5134 Orange Silverado Canyon. Santa Anita Mts. Comment
  POM4224  Scrophularia californica subsp. floribunda Robinson, Crocker 1916-3-28 s.n. Orange Santa Ana Mts. Comment
Read comments
Sep 3 2011
  IRVC3586  Selaginella bigelovii Anonymous 1965-3-11 Orange Back Bay. Newport Beach Comment
  RSA703882  Selaginella bigelovii Fred M. Roberts, D. E. Bramlet 2004-7-30 6079 Orange Rancho Mission Viejo: Donna O Neill Land Conservancy, Western slopes of Cristianitos Cyn., 0.25km W Sycamore Gate and Cristianitos Road. 151 Comment
  SEINET3864015 Image available Selaginella bigelovii J. T. Howell 1927-7-22 s.n. Orange Claymine Canyon, Santa Ana Mts.; 0 183 Comment
  IRVC22751  Selaginella cinerascens D. Bramlet, W. Wright 1986-5-4 Orange knoll above Segundo Deschecha Canada and west of Christianitos Canyon Rancho Mission Viejo 212 Comment
  CAS-BOT-BC363480  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  RSA588799  Senecio californicus Fred M. Roberts, D. Bontrager 1990-4-18 4561 Orange Rancho Mission Viejo: ridge between Christianitos and Gabino Canyons (Riverside Cement Lease Holdong), 5.5 km SE Playa Survey Marker. 152 Comment
  UCR261688  Senecio flaccidus var. douglasii Dick Newell, Judy Booth 2014-8-10 383 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Rd./Silverado Canyon Rd., 2 miles due north of Modjeska Peak 815 Comment
  RSA450861  Senecio mikanioides Gordon Marsh, K. G. Marsh 1978-1-29 s.n. Orange Santa Ana Mountains, Lower Ladd Canyon, reach between west and east forks Comment
  RSA734811  Senecio vulgaris A. C. Sanders, Fred M. Roberts 2008-3-25 34578 Orange Saddle on ridge near head of Weir Canyonm, 5.3 miles ENE of Villa Park, 3.1 mi. N of (Santiago Reservoir) Irvine Lake 405 Comment
  RSA791870  Senecio vulgaris R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49646 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  CAS-BOT-BC364599  Senecio vulgaris Carl B. Wolf 1932-6-28 3766 Orange Bryant Ranch, along Western half of North boundary of 40 acre Valencia Orange Grove; Bryant Ave. & Hansen Rd. Comment
  CAS-BOT-BC364603  Senecio vulgaris Ira L. Wiggins 1966-3-31 20569 Orange Shoulder of Associated Road, 200 m. S of Imperial Highway, Fullerton Comment
  RSA0069225  Senna marilandica Fred M. Roberts, Sandra Leatherman 2008-9-3 7080 Orange Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.6 km W Gypsum Cyn. bridge, south of La Palma Ave. 113 Comment
  IRVC24099  Senna multiglandulosa Fred M. Roberts, R. L. Allen 1985-9-3 2201 Orange Lower San Juan Canyon, Hwy 74, c.a. 14.4km NE San Juan Capistrano by road, Casper's Regional Park 184 Comment
  SD80981  Sesuvium verrucosum Roger Shelby 1970-8-22 Orange Ca. 4 miles north of Huntington Beach, 1.5 miles south of Warner Ave.on Pacific Coast Hwy in Bolsa Bay area Comment
  RSA788912  Setaria pumila Fred M. Roberts 2008-9-17 7104 Orange Peninsular Ranges: Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana river, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river. 87 Comment
  UCR191009  Sidalcea malviflora A. C. Sanders, Fred M. Roberts 2008-4-22 35018 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  CAS-BOT-BC205740  Sidalcea neomexicana subsp. thurberi Carl B. Wolf 1936-4-22 7770 Orange East of Los Alamitos, at Northwest corner of Hansen Road & Bryant Ave. 15 Comment
  CAS-BOT-BC384501  Silene antirrhina LeRoy Abrams 1903-4-18 3272 Orange Trabuco arroyo, near Capistrano Comment
  RSA749489  Silene antirrhina Fred M. Roberts, Linda Farley 2008-3-28 6823 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. 457 Comment
  IRVC22793  Silene gallica Fred M. Roberts 1985-5-16 1816 Orange mouth of Laurel Canyon, 4.0km SE Signal Peak, San Joaquin Hills 85 Comment
  IRVC357  Silene gallica B. Newman 1965-3-14 Orange Dana Point Comment
  UCR191436  Silene gallica A. C. Sanders, Fred M. Roberts 2008-4-8 34730 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA0013912  Silene 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
  UCR192083  Silene laciniata A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35296 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA602114  Silene laciniata subsp. major Scott D. White 1997-5-6 5041 Orange Santa Ana Mountains. Santiago Canyon area: Ridgetop road N and W of Bolero Lookout. 427 Comment
  UCR209365  Silene laciniata subsp. major Fred M. Roberts, Linda Farley 2008-3-28 6831 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
  IRVC908  Silybum marianum L. Stilgenbauer 1965-4-27 Orange Corona del Mar], Big Corona Beach. Newport Beach Comment
  RSA14728  Silybum marianum C. B. Wolf 1935-2-26 s.n. Orange Rancho Santa Ana, near office Comment
  RSA734809  Silybum marianum A. C. Sanders, Fred M. Roberts 2008-5-6 35269 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  CAS-BOT-BC75038  Sisymbrium altissimum John Thomas Howell 1927-7-24 2821 Orange Santa Ana River bottom, Santa Ana Canyon. 152 Comment
  IRVC19418  Sisymbrium irio R. L. Allen 1983-2-12 A633 Orange Fullerton; Hillcrest Park, slope bordering E Valley View Drive. Southern Coastal Comment
  RSA749361  Sisymbrium irio Fred M. Roberts 2008-4-15 6900 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn., east ridge, Conservation Trail, 1.6 km ESE Rattlesnake Reservoir dam and 2.7 km WSW Bee Peak, Irvine Ranch Conservancy. 172 Comment
  RSA184172  Sisymbrium irio I. L. Wiggins 1966-2-12 20430 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  RSA0127611  Sisymbrium officinale Fred M. Roberts 2016-4-26 8042 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
  UCR230834  Sisymbrium orientale Dick Newell, Don Millar 2011-6-18 177 Orange Peninsular Range; Santa Ana Mtns., mouth of Fremont Canyon, just north of the Lake Irvine dam 204 Comment
  RSA0127338  Sisyrinchium bellum Fred M. Roberts 2016-3-17 8020 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
  RSA366973  Sisyrinchium bellum H. L. Bauer 1929-4-20 s.n. Orange Trabuco Canon. Comment
  RSA681017  Sisyrinchium bellum Fred M. Roberts, David E. Bramlet 2003-3-13 5571 Orange Donna ONeill Land Conservancy: Ridge west of Christianitos Canyon, 1.6 km NW Sycamore Gate. 197 Comment
  RSA697825  Sisyrinchium bellum Anonymous s.n. Orange Near Orange Co. Park. 793 Comment
  RSA747707  Sisyrinchium bellum Fred M. Roberts 2008-5-16 6985 Orange Dana Point: Dana Point Hradland, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  RSA503163  Sisyrinchium bellum Gary D. Wallace, G. Cromwell 1966-4-16 471 Orange Along coast highway; north of Camp Pendleton. Comment
  POM21634  Solanum americanum F. W. Peirson 1924-2-9 4523 Orange Between Wintersberg and the sea. Comment
  POM4249  Solanum americanum Philip A. Munz 1918-5-4 2176 Orange Laguna Canyon. Comment
  POM201715  Solanum douglasii L. M. Booth 1932-5-19 1075 Orange Newport Bay. Comment
  RSA733842  Solanum douglasii A. C. Sanders 2008-4-29 35147 Orange 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
  UCR98231  Solanum douglasii B. G. Pitzer 1997-4-15 3131 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
  RSA704889  Solanum douglasii Doug Causey 1972-5-1 s.n. Orange 3 mi. E Irvine Lake Comment
  SEINET12274722  Solanum douglasii J. F. Bright, Wyman, C. 1933-1 8202 Orange in foothills near Laguna Comment
  UCSB18231  Solanum douglasii Daniel, Dick 1964-3-28 Orange Silverado Canyon Road; 5.1 miles NW of junction with Santiago Canyon Road; approximately 10 miles W of Irvine Lake 365 Comment
  NY821424  Solanum nigrum C. L. Hitchcock 1964-3-17 23063 Orange 8 mi. E. of Yorba Linda, Santa Ana Canyon Comment
  UCR186139  Solanum nigrum T. B. Salvato, Katie Kurtz 2006-10-15 1919 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  UCD126949  Solanum nigrum R. Townsend 1939-12-28 158 Orange Highway west of Atwood. Comment
  RSA39342  Solanum rostratum E. L. Paddock 1943-7-2 12739 Orange Near Dana Point. Comment
  CAS-BOT-BC156480  Solanum umbelliferum J. T. Howell 1927-7-24 2822 Orange Santa Ana River bottom, Santa Ana [Canon] Canyon 152 Comment
  RSA2067  Solanum umbelliferum Carl B. Wolf 1931-3-6 1862 Orange North of base of Trabuco Modjeska Grade, west slope of Santa Ana Mts. 305 Comment
  RSA0020572  Solanum umbelliferum Keith E. Hoffmaster 1927-4-8 534 Orange Santa Ana Mountains. Comment
  RSA0058058  Solanum umbelliferum var. glabrescens Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49672 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  RSA792354  Solanum xanti Doris Bowers 1971-4-19 1685 Orange Black Star Canyon Indian Site 762 Comment
  RSA791806  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11 -84 Orange City of Newport Beach, beach area west of the end of Cameo Shores Road; south ca. 1.5 miles from Poppy Ave. 2 Comment
  POM18090  Solidago californica P. A. Munz 1923-9-7 7747 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA166678  Solidago californica Anonymous 1961-9-3 c- 5 Orange East on Hidden Valley Road, 1 mile from Broadway and South Coast Blvd, Laguna Beach 76 Comment
  RSA473634  Solidago californica M. B. Dunkle 1934-6-18 3967 Orange Upper San Juan Canyon 610 Comment
  RSA7652  Solidago californica E. R. Johnson 1933-9-25 5524 Orange Muddy Springs near Roundtop, Santa Ana Rancho 366 Comment
  UC537016  Solidago confinis L. M. Booth 1932-12-26 1383 Orange Newport Lagoon Comment
  POM201703  Sonchus asper L. M. Booth 1932-7-19 1270 Orange Bolsas Marsh. Comment
  RSA184147  Sonchus oleraceus I. L. Wiggins 1966-5-25 20668 Orange Parkway along south side of Nutwood Lane, margin of CSCF campus, Fullerton. Comment
  RSA737537  Sonchus oleraceus Fred M. Roberts 2008-3-12 6725 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-BC374662  Sonchus oleraceus Ira L. Wiggins 1965-11-6 20334 Orange West side of Atwood Comment
  CDA26023  Sorghum halepense Mark A. Elvin 2007-6-16 s.n. Orange Southern Coastal; Irvine; San Diego Creek at Campus Drive, on bank in channel. Comment
  IRVC12894  Sorghum halepense Roy Yarnell 1966-5-20 133 Orange State College Blvd., near Yorba Linda. southern coastal Comment
  IRVC18904  Sorghum halepense Fred M. Roberts 1981-6-24 284 Orange San Juan Capistrano: 3.2km south of Saddleback College on Rancho Viejo Rd. southern coastal 42 Comment
  UC729939  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Malvern & Nicholas Aves. Fullerton 53 Comment
  UCD92658  Sorghum halepense Beecher Crampton 1965-10-27 7582 Orange 2 miles E of Irvine, Irvine Blvd. Comment
  RSA483172  Spartina foliosa F. R. Fosberg 1930-7-10 S 3193 Orange Anaheim Landing. [Los Angeles Co. on label] Comment
  SD109539  Spartina foliosa C. Davidson 1970-7-27 1505 Orange Bolsa Chica Salt Marsh, 1 mile south of Warner Ave., opposite Seal beach Comment
  UCR5168  Spergula arvensis Barbara T. Gittins, O. F. Clarke 1966-3-19 889 Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  POM202104  Spergularia macrotheca L. M. Booth 1932-5-19 1062 Orange Newport Bay. Comment
  RSA0097843  Spergularia macrotheca P. A. Munz 1918-5-5 2204 Orange Laguna Beach. Comment
  RSA0097844  Spergularia macrotheca James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Comment
  RSA0098429  Spergularia macrotheca var. leucantha R. E. Riefner 1996-3-28 96 -28 Orange San Clemente State Beach. Comment
  RSA0011086  Spergularia salina James Snow 1932-1 4 Orange Bryant Ranch, near Long Beach. Station no. 1. Comment
  UCSB52392  Spergularia salina Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Upper Newport Back Bay, Back Bay Dr., 3.5 km. N San Joaquin Hills Rd.; 3.0 km. W UC Irvine campus 2 Comment
  RSA788911  Sporobolus indicus Fred M. Roberts 2008-9-17 7106 Orange Peninsular Ranges: Santa Ana River Canyon: Yorba Linda Regional Park adjacent to Santa Ana river, South of La Palma Ave. and 1.7 km ENE Imperial Hwy. bridge over river. 87 Comment
  RSA0028740  Sporobolus indicus R. E. Riefner Jr. 2004-12-12 4 -553 Orange City of Irvine, near Irvine Valley College, strawberry fields along Jeffrey Road near Irvine Center Drive. 37 Comment
  UCR231057  Stachys A. C. Sanders, Kent Beaman 2011-9-27 39913 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail, 3.4 km NNW (340 deg. ) of Santiago Peak 1088 Comment
  UCR193814  Stachys ajugoides A. C. Sanders, Fred M. Roberts 2008-7-16 35830 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, canyon c. 0.12 mi. below Dripping Spring, c. 7.5 mi. ESE of Tustin 360 Comment
  UC1871282  Stachys ajugoides var. rigida Steve Boyd, D. L. Banks 1969-12-31 8276 Orange Peninsular Ranges; Santa Ana Mountains region; Southern Santa Ana Mountains along the ridgeline between Lucas and Verdugo Canyons west of Verdugo Potrero, near transit point ''Lucas''. T7S R6W SW1/4 NW1/4 sec. 16. Elevation ca. 1400 ft. 427 Comment
  RSA798185  Stachys rigida subsp. quercetorum Robert F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49583 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  UCR242699  Stachys rigida subsp. quercetorum Fred M. Roberts 2012-5-10 7573 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
  RSA0026253  Stachys rigida subsp. rigida Fred M. Roberts 2013-6-12 7797 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
  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
  UCSB52928  Stebbinsoseris heterocarpa Roberts, Fred; Marsh, G. 1983-3-30 Orange UC Irvine Ecological Preserve, 1.6 km. SSW UCI campus center 87 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
  CAS-BOT-BC393823  Stellaria media Ira L. Wiggins 1966-2-25 20475 Orange Firestone Boy Scout Reservation, in hills E of Brea Comment
  RSA627784  Stellaria media Scott D. White 1998-4-9 6266 Orange University of Calif. Irvine Campus; Drainage channel west of Medical Center, west of main campus circle. 15 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
  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
  JEPS36878  Stephanomeria diegensis L. M. Booth 1933-10-18 Orange Newport Comment
  RSA184185  Stephanomeria diegensis I. L. Wiggins 1965-11-6 20340 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  JEPS36839  Stephanomeria exigua subsp. coronaria L. M. Booth 1932-8-5 1361 Orange Newport Bay Comment
  JEPS36892  Stephanomeria exigua subsp. coronaria L. M. Booth 1933-10-18 Orange Newport Comment
  UC520303  Stephanomeria virgata subsp. pleurocarpa Joseph Andorfer Ewan 1932-7-28 7706 Orange Corona del Mar Comment
  UCR281587  Stephanomeria virgata subsp. virgata Mitch Provance 2017-6-9 617- 89 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.25 miles NNE of intersection with Castlewood Dr. 164 Comment
  UCR223959  Stipa pulchra Fred M. Roberts 2008-4-9 6863 Orange South Coast, Dana Point, Dana Point Headlands, CNLM Preserve, near Outlook 2, 0.7 km west of Marine Institute, Dana Point Harbor 52 Comment
  RSA6315  Stuckenia pectinata L. T. Street, Williams 1919-5-4 2690 Orange Laguna Lakes. [now Big Laguna Lake, San Diego Co.] Comment
  RSA743376  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR281545  Stylocline gnaphaloides Mitch Provance, Jeremiah George 2017-3-20 317- 116 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Roads E of Gilbert Street and N of Castlewood Dr., on land previously occupied by oil fields. 137 Comment
  RSA0104826  Stylocline gnaphaloides J. B. Anderson 1966-4-9 526 Orange San Joaquin Hills: On road between Lindoln School-Signal Peak on near level hilltop. 182 Comment
  UCSB48120  Stylocline gnaphaloides Fritzke, S.; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo; Calif. 74, 7.2 km. by road E San Juan Capistrano; 1.3 km. NE Viejo Survey Marker 98 Comment
  RSA263773  Styrax redivivus Robert Harvey H- 85 -66 Orange Tan Mine Canyon. Comment
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Oct 15 2013
  UC116539  Suaeda calceoliformis S. B. and W. F. Parish Oct 1882 1598 Orange Santa Ana Comment
  POM202729  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay. Comment
  POM48004  Suaeda esteroa I. M. Johnston 1924-8-29 s.n. Orange 2.5 miles north of Balboa. Comment
  RSA758776  Suaeda esteroa Anstruther Davidson 1914-10-1 2989 Orange Newport Comment
  UCSB50567  Suaeda esteroa Tilforth, C. 1975-11-6 Orange North-east shoreline of Upper Bay, Newport Beach, Orange County Comment
  UCSB58942  Suaeda esteroa Sanders, A. 1990-10-6 Orange Newport Bay, North Star County Beach area; on the SW end of the bay; ca. 2 km. inland of Hwy. 1 3 Comment
  RSA5956  Suaeda moquinii C. B. Wolf 1932-7-7 3850 Orange Bryant Ranch, 600 ft. N of Bixby Ave., 1 mi. W. of Hansen Road., (600 ft. N and 100 ft. W. of S.E. corner of N.E. 1/4 of N.E. 1/4 of Sect. 33) Comment
  CAS-BOT-BC110405  Suaeda taxifolia Carl B. Wolf 1927-7-23 669 Orange Just north of San Clemente.