Search Results — 2000 specimen records retrieved (1586 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
  RSA678453  Abronia maritima Valerie L. Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1116 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  JEPS61217  Abronia umbellata var. umbellata L. M. Booth 1932-5-25 1113 Orange Balboa Island; Newport Bay Comment
  SEINET7067537  Abronia villosa A. G. Vestal 1947-6-12 s.n. Orange Santa Ana River Wash northwest of Orange. Coordinate datum: NAD27. UTM Zone 11, 418667mE, 3739612mN. Comment
  RSA0025969  Abronia villosa Dorothy Parsons 1932-3-28 s.n. Orange Buena Park Road. Comment
  POM212062  Abronia villosa var. aurita Carl B. Wolf 1931-7-1 2259 Orange Atwood, lower end of Santa Ana Canyon. 76 Comment
  RSA727606  Abutilon palmeri R. E. Riefner Jr. 2006-9-5 06 -418 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  IRVC22784  Acacia mearnsii Fred M. Roberts 1985-6-2 1839 Orange El Camino Real, 0.1km SE Beach Rd., Capistrano Beach 5 Comment
  UCR239623  Acacia redolens Fred M. Roberts 2012-4-24 7497 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
  CAS-BOT-BC333257  Acer macrophyllum B. D. Stark 1931-6-10 2246 Orange Claymine Can, N end of Santa Ana Mts. 243 Comment
  SEINET3195254 Image available Acer macrophyllum P. C. Everett 1935-6-19 7239 Orange Santa Ana Mts., Trabuco Canyon,2 6/10 mi. below (W.) Summit Truck Trail 910 Comment
  UCSB47632  Acer macrophyllum Roberts, Fred 1980-5-3 Orange 2.2km SE Trabuco Peak, Santa Ana Mtns 1234 Comment
  RSA751317  Achillea millefolium A. C. Sanders, Fred M. Roberts 2008-5-6 35271 Orange Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 366 Comment
  LA48030  Acmispon glaber var. glaber A. M. Johnson; 1927-12-30 2760 Orange Laguna Comment
  RSA0073642  Acmispon glaber var. glaber Fred M. Roberts 2010-3-12 7180 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA0127414  Acmispon glaber var. glaber Fred M. Roberts 2016-3-17 8009 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  OBI41040  Acmispon junceus var. junceus Melissa Thorme 1983-11-23 16 Orange Ad to S most housing tract in Corona Del Mar Comment
  UCD104462  Acmispon strigosus R. Tofsrud 1951-4-25 s.n. Orange Near Orange and L.A. County line on Hwy. 74. Comment
  UCR281525  Acourtia microcephala Mitch Provance 2017-6-9 617- 101 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA542471  Acourtia microcephala Fred M. Roberts, K. Keane 1988-5-25 4584 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker. 91 Comment
  CDA33562  Acroptilon repens Nisson 2010-5-19 PDR# 1544178 Orange Seal Beach; 11 College Park Drive. 0 Comment
  CAS-BOT-BC133134  Adenostoma fasciculatum A. M. White 1974-6-3 1387 Orange Ca. 20 mi. E. of Santa Ana, N. of Silverado Canyon Comment
  RSA0027783  Adenostoma fasciculatum Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49680 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak] 457 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
  RSA5304  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1932-12-19 1697 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  UCSB41858  Adenostoma fasciculatum var. fasciculatum Fisher, K. 1970-5-15 Orange Tucker Wildlife Sanctuary, Modjeska Canyon 548 Comment
  CAS-BOT-BC443959  Adiantum capillus-veneris R. E. Riefner, Jr. 2012-2-23 12 -43 Orange City of Laguna Beach, Treasure Island Beach, vicinity of Wesley Drive and South Coast Highway. 1 Comment
  CDA1085  Adiantum capillus-veneris D. G. Kelch 2006-12-9 6 .532 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  SEINET3861325 Image available Adiantum capillus-veneris A. C. Sanders, Fred M. Roberts 2008-7-16 35836 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Dripping Spring off Limestone Canyon, c. 7.5 mi. ESE of Tustin (El Toro 7.5' Q.).; 0 391 Comment
  POM122866  Adiantum jordanii Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canyon Comment
  RSA84993  Adiantum jordanii F. W. Peirson 1924-5-31 4666 Orange 5 miles SE of Laguna Beach. Comment
  IRVC22035  Adiantum jordanii Fred M. Roberts 1983-12-13 1154 Orange Temple Hill, Park Canyon along Park Ave., 1.3km NE Thurston Sch.; 1.7km SE Bench Mark 104, Laguna Beach 194 Comment
  IRVC3117  Adiantum raddianum Pat Rolfe 1965-4-20 HS 0581 Orange Newport Beach: Back Bay. 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
  RSA728669  Agave attenuata R. E. Riefner 2007-2-18 07 -67 Orange City of Rancho Santa Margarita, Tijeras Canyon, N ca. 0.5 mi from Meandering Trails Rd. on Antonio Pwky. 221 Comment
Read comments
Feb 28 2016
  UC592771  Agnorhiza ovata P. C. Everett 1935-6-18 Orange Los Pinos Potrero, Main Divide Motorway Santa Ana Mts. 914 Comment
  RSA542331  Agrostis pallens Fred M. Roberts, K. Keane 1988-5-25 3996 Orange Rancho Mission Veijo: Lower Canada Chiquita, 2.0 kilometers SSE Medium Rancho Survey Marker., UTM 3710600m N, 443550m E. 91 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
  UCR219855  Agrostis pallens Fred M. Roberts 2008-6-3 7029 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, East Fork Rattlesnake Canyon, c. 2.6 km NE Rattlesnake Reservoir spillway and 2.4 km ENE Bee Peak 225 Comment
  UC729937  Agrostis stolonifera Carl B. Wolf 1932-6-13 Orange Malvern and Nicholas Avenues Fullerton 53 Comment
  JEPS73752  Agrostis viridis Lawrence M. Booth 1932-6-7 1163 Orange Newport Bay Comment
  UCR192983  Agrostis viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35467 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA16417  Allium haematochiton Percy C. Everett, E. R. Johnson 1935-5-29 7093 Orange Santa Ana Mountains, head of Claymine Canyon. 732 Comment
  UCR215292  Allium haematochiton Fred M. Roberts, D. E. Bramlet 2008-5-13 6952 Orange Santa Ana Mountains, upper Weir Canyon, central fork, 3.5 km NE of Robbers Peak 369 Comment
  RSA176731  Allium haematochiton D. E. Breedlove 1962-3-9 1788 Orange 12.3 miles east of San Juan Capistrano on State [Highway] 74 244 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
  RSA681018  Allium praecox Fred M. Roberts, David E. Bramlet 2003-3-7 5568 Orange Donna O Neill Land Conservancy; Ridge west of Christianitos Canyon, Middle Ridge Trail, 1.1km NW Gato Gate. 178 Comment
  UCR5206  Allium praecox Barbara T. Gittins, O. F. Clarke 1966-3-19 902 A Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA548861  Allium praecox Bernard Jaroslow 1990-4-25 B- 37 Orange Sitton Peak Truck Trail: Trailhead 0.3 mile W of ranger station near hot springs, on Ortega Highway (SR 74) Comment
  POM3515  Allophyllum glutinosum L. R. Abrams 1901-06 1841 Orange Santiago Peak. 1524 Comment
  RSA410099  Allophyllum glutinosum Albert J. Perkins 1914-6-14 s.n. Orange Santiago Peak. 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
  RSA67223  Allophyllum glutinosum Verne Grant, Alva Grant 1949-4-23 8659 Orange West entrance of Cleveland National Forest on Hywy 74. Comment
  SD127314  Alnus rhombifolia Reid Moran, Jack Reveal and Bob Smart 1975-7-18 22597 Orange Near Yaeger Mine, bottom of upper Trabuco Canyon, Santa Ana Mts. 725 Comment
  UCR193584  Alnus rhombifolia A. C. Sanders, T. B. Salvato 2008-5-13 35366 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA562818  Aloe saponaria Steve Boyd 1992-5-20 7471 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area. Western edge of the wilderness in Lucas Canyon, about old mining habitations in side canyon, upstream 1/4 mile from Lucas Canyon Trail crossing and north spur trail 1/8 mile. 390 Comment
  RSA737481  Aloe saponaria Fred M. Roberts 2008-3-12 6735 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  UCR142295  Alopecurus saccatus D. E. Bramlet 1998-5-17 2618 Orange Fairview Park, City of Costa Mesa; c. 366m N of the intersection of Wilson and Canyon Dr. and 152 m west of the Canyon School, on a mesa overlooking the Santa Ana River 24 Comment
  CLARK-A1528-917  Amaranthus albus Patricia A. Andrews 1975-6-26 5914 Orange Capistrano Bay Beach 9 Comment
  RSA184077  Amaranthus albus I. L. Wiggins 1966-5-4 20658 Orange Along railroad embankment of A.T. & S.F. R.R., on SW side of Orangethorpe avenue, near Esperanza siding. Comment
  RSA725459  Amaranthus blitoides Fred M. Roberts 2007-8-6 6558 Orange San Joaquin Hills: Laguna Beach, Laguna Cyn. on east side of Laguna Cyn. Rd. adj. to dog park, 1.2 km S (air) from El Toro Road and 1.8 km WSW Moulton Survey Mk. 52 Comment
  RSA751256  Amaranthus blitoides A. C. Sanders, Fred M. Roberts 2008-7-16 35880 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UC537281  Amaranthus blitoides L. M. Booth 1932-12-16 1377 Orange Santa Ana River, near coast Santa Ana River Comment
  RSA724062  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
  CLARK-A1528-4888  Amaranthus deflexus John C. Roos 1937-5-21 2065 Orange Orange Comment
  RSA592066  Amaranthus deflexus R. E. Riefner 1995-7-27 95 -318 Orange S bluff area of San Clemente Beach. Comment
  RSA0036246  Amaranthus hybridus A. R. Roos 1937-12-2 s.n. Orange Santa Ana. Comment
  RSA184187  Amaranthus hybridus I. L. Wiggins 1965-11-7 20357 Orange Vacant lot between State College Blvd. and Troy High School Campus, Fullerton. Comment
  UCR25292  Amaranthus palmeri Alfred R. Roos 1937-12-9 s.n. Orange West 17th St. in Santa Ana Comment
  UCR270998  Amblyopappus pusillus Mitch Provance, Travis Kegel 2016-4-8 416- 62 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
  UCSB8603  Amblyopappus pusillus Anderson, J. 1966-4-16 Orange Corona Del Mar: Buck Gully "Little Corona Beach" 15 Comment
  IRVC9303  Amblyopappus pusillus B. T. Gittins 1966-4-20 85 Orange Corona del Mar, between Los Cerritos Riding Stable and Cameo Shores; coastal bluffs. Newport Beach Comment
  CAS-BOT-BC13770  Ambrosia chamissonis David D. Keck 1933-9-8 2540 Orange Sunset Beach Comment
  JEPS40940  Ambrosia chamissonis L. M. Booth 1932-7-30 1336 Orange Balboa Island Comment
  UC523553  Ambrosia chamissonis David D. Keck 1933-9-8 2522 Orange Sunset Beach Comment
  POM289599  Ambrosia chamissonis Arthur L. Cohen 513 Orange Ocean parts. Sand lots near beach. 0 Comment
  RSA4814  Ambrosia chamissonis D. L. Crawford 1928-07 s.n. Orange Beach Comment
  CDA25220  Ambrosia psilostachya A. C. Sanders, Fred M. Roberts 2008-8-7 35990 Orange Peninsular Range; Santa Ana Mountains.; Lower Weir Canyon, at narrow gorge c. 0.6 mile above mouth of canyon at Irvine Ranch gate. Comment
  IRVC25169  Ambrosia psilostachya var. californica Fred M. Roberts, Brenda Fugle 1986-10-1 3146 Orange Laguna Hills; creek channel along Cabot Rd. ca. 1.0km N Pacific Park Pkwy. Southern Coastal 99 Comment
  CDA25799  Ammannia coccinea A. C. Sanders, Fred M. Roberts 2008-9-18 36095 Orange Peninsular Range; Santa Ana Mountains Foothills; Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 mile above the highway bridge. Comment
  POM201611  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. Comment
  POM201704  Ammi visnaga L. M. Booth 1932-7-18 1268 Orange Santa Ana River, 1 mile from Ocean. 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-BC177254  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana River bottom, Rancho Santa Ana, Santa Ana Canyon 137 Comment
  RSA378  Amorpha fruticosa J. T. Howell 1927-6-6 49 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  UC527692  Amorpha fruticosa B. D. Stark 1931-10-17 2463 Orange Santa Ana Canyon Rancho Santa Ana 137 Comment
  UC1292600  Amsinckia intermedia C. L. Hitchcock, C. V. Muhlick 1964-3-17 23064 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR223429  Amsinckia intermedia Dick Newell, Don Millar 2011-2-15 061 Orange South Coast, San Joaquin Hills, Laguna Wilderness Park, along Stagecoach Trail 131 Comment
  UCSB48101  Amsinckia intermedia Fritzke, Sue; Roberts, Jr., Fred 1982-4-3 Orange Rancho Mission Viejo: Calif. 74, 15.0 km by road NE San Juan Capistrano; 4.7 km SW San Juan Guard Station 160 Comment
  HSC17835  Anagallis arvensis J. W. Johnson 1961-3-29 Orange Newport Beach, on S side of upper Newport Bay Comment
  UCR96318  Anagallis arvensis B. G. Pitzer 1996-4-30 2794 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR113625  Andropogon glomeratus H. Camp 1999-9 s.n. Orange Peninsular Range; Santa Ana Mtns., Ronald W. Caspers Wilderness Park, 12 miles east of San Juan Capistrano along San Juan Creek bed near confluence with Hot Springs Canyon 213 Comment
  CAS-BOT-BC400331  Anemopsis californica Carl B. Wolf 1932-7-2 3818 Orange Carbon Canyon, 1/8 mi. below La Vida Springs 213 Comment
  POM2017  Anemopsis californica D. L. Crawford 1916-7-26 s.n. Orange Aliso Canyon. Comment
  POM50573  Antirrhinum coulterianum L. R. Abrams 1901-6-15 1790 Orange Santiago Peak trail. Comment
  CLARK-A1528-4161  Antirrhinum coulterianum subsp. orcuttianum John C. Roos 1937-5-10 2082 Orange San Juan Capistrano Comment
  RSA737890  Antirrhinum multiflorum R. E. Riefner 2008-5-15 09 -83 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 610 Comment
  UCR203909  Antirrhinum multiflorum R. E. Riefner Jr. 2008-6-17 08- 159 Orange Santa Ana Mountains, Irvine Ranch Reserve, North Irvine Ranch, middle Fremont Canyon, east slope along Black Star SCE Road 618 Comment
  RSA737889  Antirrhinum multiflorum R. E. Riefner 2007-6-29 07 -286 Orange Irvine Ranch Reseve, N Irvine Ranch, E Fork cliffs at upper Fremont Canyon along Black Star SCE road. 579 Comment
  POM354915  Antirrhinum nuttallianum subsp. nuttallianum Albert J. Perkins 896 Orange Laguna Beach, Nigger Canon Comment
Read comments
Jul 15 2013
  RSA80436  Antirrhinum nuttallianum subsp. nuttallianum F. W. Peirson 1923-5-5 4489 Orange Trabuco Canyon, Santa Ana Mountains 518 Comment
  RSA715705  Antirrhinum nuttallianum subsp. subsessile Fred M. Roberts, Robert L. Allen 2005-10-15 6316 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  POM354883  Antirrhinum nuttallianum subsp. subsessile Thekla Mohr 1917-04 s.n. Orange Laguna. Comment
Read comments
Nov 25 2014
  RSA518  Apiastrum angustifolium J. T. Howell 1927-6-17 150 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  UC536945  Apiastrum angustifolium Lawrence M. Booth 1932-5-12 1027 Orange Newport Bay 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
  RSA226638  Apium graveolens Christopher Davidson, G. Benny 1971-6-15 1545 Orange Brea Canyon, 0.5 mile N of Central Avenue, along Brea Creek, near Brea Oil Co. wells. Comment
  RSA700187  Apium graveolens R. H. McArthur 1934-5-10 s.n. Orange 1916 Wash 4 mi. west 1 mi. south S.A. Comment
  RSA6027  Apocynum cannabinum B. D. Stark 1932-7-15 3876 Orange Ranch Santa Ana River bottom below the ranch houses. 1220 Comment
  RSA648271  Arctostaphylos glandulosa P. Shirokawa 1998-4-24 10 Orange Cleveland National Forest - Trabuco Ranger District, 4.75 miles from Ortega Highway (State Highway 74) on North Main Divide Road, and 0.6 miles along Blue Jay Road 1066 Comment
  UCR273480  Arctostaphylos glandulosa A. C. Sanders, Glen Morrison 2016-8-4 42607 Orange Peninsular Range; Santa Ana Mountains, North Main Divide Road (Forest Rte 3S04) between Hwy 74 and Los Pinos Spring, 2.3 km NW (312 deg. ) of El Cariso Fire Station 959 Comment
  UCR282324  Arctostaphylos glandulosa A. C. Sanders, Yi Huang 2017-3-3 42703 Orange Peninsular Range; Santa Ana Mtns., North Main Divide Road, 6.5 km north of Hwy 74, at junction to Blue Jay and Falcon Camps 1038 Comment
  POM254923  Arctostaphylos glandulosa subsp. glandulosa W. Pequegnat 1940-6-19 s.n. Orange Main Divide Road, between Pleasants and Bedford Peaks. Santa Ana Mts. Comment
  POM367266  Arctostaphylos glandulosa subsp. glandulosa E. Crow 1929-2-22 165 Orange Gypsum Canyon, near corona, Santa Ana Mts. Comment
  RSA626919  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15508 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  RSA626921  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15506 Orange Hotshot Camp, north of Ortega Highway (Highway 74). 900 Comment
  RSA629328  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1992-6-12 15511 Orange Rd. 6S06, 1km northeast of Blue Jay Campground, north of El Cariso (Hwy 74) 1050 Comment
  RSA167732  Arctostaphylos glandulosa subsp. zacaensis R. F. Thorne, John Olmsted 1963-7-26 32838 Orange In Tin Mine Canyon above Beek's Spring, Trabuco District, Santa Ana Mts., Cleveland National Forest. 854 Comment
Read comments
Apr 25 2011
  UC1137197  Arctostaphylos glandulosa subsp. zacaensis Willis E. Pequegnat 1940-6-19 Orange head of West Ladd Canyon Cleveland National Forest, Corona Quadrangle, Santa Ana Mts. 914 Comment
Read comments
Apr 2 2014
  UC1137480  Arctostaphylos glandulosa subsp. zacaensis J. B. Spring 1931-3-18 26 Orange Black Star Canyon Corona Quadrangle (Plot #17, Corona #2) Comment
  UC284866  Arctostaphylos glandulosa subsp. zacaensis P. A. Munz 1923-5-7 7741 Orange slopes above Santiago Peak 1219 Comment
  SEINET10449244  Arctostaphylos hookeri James S. Miller 2001-12-15 Miller 10654 Orange Rancho Santa Ana Botanic Garden, Santa Ana, CA. Comment
  RSA0013972  Argemone munita Fred M. Roberts 2008-5-20 6992 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
  UC592822  Argemone munita Carl B. Wolf 1937-12-3 9382 Orange between Santiago Peak and Modjeska Peak (Santa Ana Mountains, Main Divide Motorway); Santa Ana Mountains, Main Divide Motorway 1645 Comment
  RSA0013974  Aristida adscensionis Fred M. Roberts, David E. Bramlet 2008-5-13 6953 Orange Upper Weir Cyn., central fork, 3.5 km NE Roberst Peak 369 Comment
  CLARK-A1528-5239  Artemisia californica John C. Roos 1937-8-31 2348 Orange San Clemente Comment
  POM201746  Artemisia californica L. M. Booth 1932-6-29 1223 Orange Newport Bay. Comment
  RSA0028027  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 kilometers WNW Pelican Hill summit. 37 Comment
  RSA417251  Artemisia californica Anstruther Davidson 1907-09 1771 Orange Newport. Comment
  UCR222878  Artemisia californica T. B. Salvato 2010-10-27 5124 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
  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
  RSA94532  Artemisia californica F. W. Peirson 1919-11-8 1448 Orange On sea bluffs south of Arch Beach, Laguna Beach. Comment
  UCR242921  Artemisia dracunculus Dick Newell, Don Millar 2013-6-25 335 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, 2.25 miles southeast of Augustine Staging Area 339 Comment
  RSA703138  Artemisia tridentata subsp. tridentata Fred M. Roberts, Arthur Davenport 2003-9-11 6017 Orange Rancho Mission Viego: Donna O'Neill Land Conservancy, Cristianitos Cyn., 85m SSW Sycamore Gate, 35m W of Cristianitos Road. 119 Comment
  IRVC412  Arthrocnemum subterminale E. Cowper 1965-3-1 Orange [Newport] Back Bay. Newport Beach Comment
  POM201945  Arthrocnemum subterminale L. M. Booth 1932-5-30 1135 Orange Newport Lagoon Comment
  POM48005  Arthrocnemum subterminale I. M. Johnston 1924-8-29 s.n. Orange Corona Del Mar Comment
  IRVC29787  Arundo donax Mark A. Elvin, Dean Kelch 2006-12-9 5310 Orange Irvine; San Diego Creek, edge of San Joaquin Marsh, beside University Dr., between Campus Dr. and Hwy 73. Southern Coastal 3 Comment
  UCR235513  Asclepias curassavica R. E. Riefner Jr. 2011-8-19 11- 100 Orange South Coast, city of Laguna Beach, bluff area west of West Street and Pacific Coast Highway 4 Comment
  UCR193029  Asclepias eriocarpa A. C. Sanders, Fred M. Roberts 2008-6-17 35519 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  IRVC19697  Asclepias fascicularis Karlin G. Marsh 1983-5-25 s.n. Orange Sycamore Hills, Laguna Canyon; freshwater marsh between Laguna Canyon laterals 6 & 7. Laguna Beach Comment
  IRVC26734  Asparagus officinalis Peter A. Bowler 2003-4-20 s.n. Orange UC San Joaquin Freshwater Marsh Reserve; bluffs along NW edge of marsh. Southern Coastal 9 Comment
  RSA0127349  Asphodelus fistulosus Fred M. Roberts 2016-5-20 8057 Orange City of Irvine: San Joaquin Hills, Turtle Rock Community along Ridge Route Road, 1.0 km SE summit of French Hill and just NE intersection with Hillsborough Drive. 122 Comment
  POM146199  Aster bernardinus F. M. Reed 1927-11-9 5634 Orange Margin of Hwy, 1 mile S of Tustin. Comment
  RSA715694  Aster subulatus var. ligulatus Fred M. Roberts, Chris M. Barnhill 2005-9-27 6275 A Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  RSA699979  Astragalus Minor Warne 1934-03 s.n. Orange Gypsum canyon Comment
  CHSC100664  Astragalus brauntonii Elizabeth Landis; Velentin Arvizu, Cliff McLean, Kadest Ketsella 1970-8-25 Orange Peninsular Ranges; Santa Ana Mountains region: Specimen located against wooden cofferdam in wet sand in CalTrans debris basin on S side of 91 Freeway in Coal Canyon. UTM Zone 11S; 3748048N 0436356E. 137 Comment
Read comments
Nov 22 2011
  SEINET892558  Astragalus leucophyllus Leslie Freeman 1963-1 128 Orange Diamond Bar Ranch in Brea Canyon. Santa Ana Mt. Range. Pacific drainage area. 304 Comment
  RSA699499  Astragalus nigrescens Anonymous s.n. Orange Orange County park Comment
  IRVC22732  Astragalus trichopodus var. lonchus Fred M. Roberts 1985-5-13 1789 Orange South Laguna; Mouth of Aliso Canyon, 0.6km NW Aliso Peak, 6 Comment
  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
  HSC14541  Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  UC1286978 Image available Astragalus trichopodus var. phoxus C. L. Hitchcock 1966-3-15 24141 Orange Stearns Lease, 1 1/2 miles e. of Brea 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
  CDA23088  Atriplex Mark A. Elvin, D. G. Kelch 2006-12-9 5299 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. 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
  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
  RSA671246  Atriplex amnicola R. E. Riefner 1999-5-22 99 -290 Orange City of Dana Point, beach west of Pacific Coast Hwy. South of Salt Creek near Ritz Carlton Hotel. 15 Comment
  RSA737375  Atriplex amnicola R. E. Riefner 2006-5-7 06 -180 Orange N end of City of San Clemente, along I5, N side, immediately S of Camino De Estrella exit ramp. 66 Comment
  SBBG122001  Atriplex amnicola R. E. Riefner 2006-4-17 06 -155 Orange near Bayview Way and Bayview Place, upper Newport Bay 6 Comment
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Dec 13 2012
  POM293160  Atriplex californica Lyman Benson 1946-4-27 12054 Orange Corona Del Mar; Drainage area: Pacific Ocean. 15 Comment
  RSA678456  Atriplex californica Valerie Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred Roberts, Gary D. Wallace 2001-4-4 1109 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  UCR14056  Atriplex californica Hyrum B. Johnson 1973-10-27 s.n. Orange Pacific Coast, Bolsa Chica State Beach 1 Comment
  UCSB56683  Atriplex californica Roberts, Fred 1985-7-9 Orange Crystal Cove State Park; Pelican Point, 1.9 km. SW Pelican Hill 15 Comment
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Feb 9 2020
  RSA255  Atriplex canescens J. T. Howell 1927-10-22 761 Orange Near Eastern Boundary, Rancho Santa Ana. 152 Comment
  RSA452455  Atriplex canescens Albert J. Perkins 1920-6-12 s.n. Orange Corona del Mar Comment
  CAS-BOT-BC170191  Atriplex canescens subsp. canescens I. M. Johnston 1918-9-3 2149 Orange Laguna Beach 6 Comment
  CAS-BOT-BC170195  Atriplex canescens subsp. canescens John Thomas Howell 1927-10-22 3163 Orange In hills on n. side of Santa Ana Canyon. 152 Comment
  CAS-BOT-BC172632  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  CAS-BOT-BC172633  Atriplex coulteri Louis C. Wheeler 1934-1-14 2363 Orange Aliso Creek near Laguna 76 Comment
  UCR252230  Atriplex coulteri Marissa Manahan 2011-5-7 s.n. Orange Newport Beach, Corona Del Mar State Beach; south of Avocado Ave. off Ocean Blvd. 25 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
  RSA680948  Atriplex glauca D. E. Bramlet 1994-2-27 2365 Orange Roadside area, some 120 meters east of intersection of Irvine Ave and University Drive, approximately 1 meter south of University Drive. 15 Comment
  SD219022  Atriplex glauca R. E. Riefner Jr. 2002-5-4 20 87 Orange City of Dana Point, beach west of Pacifi Coast Highway near mouth of Salt Creek. 14 Comment
  UCR203878  Atriplex glauca R. E. Riefner Jr. 2009-1-2 09- 4 Orange South Coast, city of Newport Beach, Upper Newport Bay, vicinity of Irvine Ave. and Santiago Dr. 10 Comment
  RSA488137  Atriplex glauca Fred M. Roberts 1985-8-30 2186 Orange Laguna Niguel: Niguel Hill, Pacific Island Rd., 1.4 km ESE Aliso Pk. 182 Comment
  RSA708449  Atriplex lentiformis Mark Elvin 2004-5-2 3423 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW of UC Irvine Campus center. 3 Comment
  UCSB56520  Atriplex lentiformis Johnson, J. 1978-11-8 Orange Irvine; Coyote Canyon Road and Mac Arthur Blvd. intersection Comment
  POM278962  Atriplex lentiformis subsp. breweri Lyman Benson 1945-1-13 11587 Orange Laguna Beach. 15 Comment
  UCR24117  Atriplex lentiformis subsp. breweri John C. Roos 1937-8-31 2556 Orange South Coast, San Clemente 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
  POM201893  Atriplex rosea L. M. Booth 1932-8-5 s.n. Orange West Newport Beach Comment
  POM201896  Atriplex rosea L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon Comment
  CLARK-A1528-980  Atriplex semibaccata Patricia A. Andrews 1975-6-26 5924 Orange Capistrano Bay Beach 9 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
  RSA252  Atriplex serenana J. T. Howell 1927-7-22 459 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  RSA5952  Atriplex serenana C. B. Wolf 1932-7-7 3849 Orange Bixby Ave., 0.7 mile W of Hansen road (0.2 mile W of SE corner of NE/4 of NW/4). 8 Comment
  POM201963  Atriplex serenana L. M. Booth 1932-7-25 1315 Orange Santa Ana River 2 miles from ocean. Comment
  SEINET4136211  Atriplex suberecta Tom Perring, Tracy Pinckard 1994-3-2 s.n. Orange South Coast: Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Rd.; 0 11 Comment
  UCD97688  Atriplex suberecta Tom Perring; Tracy Pinckard 1994-3-2 s.n. Orange South Coast, Tustin, Marine Helicopter Station at the corner of Moffett Drive and Jamboree Road. 11 Comment
  POM254669  Atriplex watsonii F. W. Peirson 1924-2-10 4533 Orange Corona Del Mar 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
  RSA65348  Atriplex watsonii F. W. Peirson 1924-8-29 5089 Orange Mainland at bridge, Balboa Beach. Comment
  RSA453969  Atriplex watsonii H. E. Hasse, Anstruther Davidson 1907-9-12 1768 Orange Newport. Comment
  UCD56188  Avena barbata Ira L. Wiggins 1966-2-18 20450 Orange 1/2 mile west of entrance to Rancho Santa Ana. Near end of Orangethorpe Ave. Comment
  UCD56212  Avena barbata Beecher Crampton 1963-5-7 6792 Orange Ca. 11 miles NE of San Juan Capistrano. State Hwy. 74. Lower San Juan Canyon. Santa Ana Mountains. Comment
  RSA0042729  Avena barbata David Barrios 1991-5-1 17 Orange 1500 ft. Northwest of Fairmont Ave and Quail cir., Yorba Linda. 365 Comment
  RSA590948  Avena barbata Fred M. Roberts 1991-5-2 4777 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
  IRVC27505  Avena fatua Mark A. Elvin 2004-5-2 3421 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  OBI7908  Avena fatua Kurt R. Neisess 1976-1-3 s.n. Orange Collected in the Fullerton Hills Comment
  RSA385407  Avena fatua Anonymous 1914-8-22 s.n. Orange Near Harper. [1909-1920, then became Costa Mesa] Comment
  UCSB47968  Avena fatua Roberts, Fred 1980-3-3 Orange Hills 1.5 km ENE of Dana Hills High School; Dana Point 85 Comment
  RSA17461  Azolla filiculoides Carl B. Wolf 1936-9-21 8273 Orange Rancho Santa Ana, Santa Ana Canyon 121 Comment
  RSA21069  Azolla filiculoides Ramon Valverde 1938-8-4 9435 Orange Rancho Santa Ana, Santa Ana Canyon. 122 Comment
  UCSB52947  Azolla filiculoides Roberts, Fred; Polek, M. 1983-11-16 Orange Newport Beach; upper Newport Back Bay near Back Bay Drive, 3.0 km. W UCI campus center 2 Comment
  IRVC6594  Baccharis douglasii Charles W. Sexton 1972-6-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  IRVC7609  Baccharis douglasii Charles W. Sexton 1972-7-17 Orange Bolsa Chica salt marsh southern coastal 0 Comment
  RSA655626  Baccharis douglasii A. C. Sanders 2000-4-19 23336 Orange Bolsa Chica Lagoon, along dirt roads in oil field, east of Hwy 1, east of Bolsa Chica St. 0 Comment
  CDA1073  Baccharis emoryi D. G. Kelch 2006-12-9 6 .537 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA788  Baccharis emoryi J. T. Howell 1927-10-22 764 Orange Santa Ana River bottom, Rancho Santa Ana 152 Comment
  JEPS30717  Baccharis glutinosa Peter H. Raven 1961-10-15 16861 Orange 2 mi se of Sunset Beach (Coast Highway); Coast Highway Comment
  CAS-BOT-BC99443  Baccharis pilularis P. C. Everett 1934-7-31 6045 Orange east of Administration Bldg., Rancho Santa Ana Botanic Garden 198 Comment
  RSA0028029  Baccharis pilularis Fred M. Roberts 2012-9-6 7702 Orange San Joaquin Hills: Buck Gully, Buck Gully Trail, about 1.8 kilometers NW Pelican Hill summit. 64 Comment
  RSA528054  Baccharis pilularis A. C. Sanders 1990-10-6 10200 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1 1 Comment
  UC532156  Baccharis pilularis Carl B. Wolf 1934-12-26 2310 Orange s end of town of San Clemente 15 Comment
  UCR186681  Baccharis pilularis T. B. Salvato, Katie Kurtz 2006-10-15 1914 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  IRVC21308  Baccharis pilularis subsp. consanguinea Fred M. Roberts 1983-12-9 1152 Orange UCI Ecological Preserve, 0.8km SSW campus center, Irvine 70 Comment
  IRVC21770  Baccharis pilularis subsp. consanguinea Fred M. Roberts 1984-11-27 1442 Orange Novia St. bridge over San Juan Creek, 0.6km S Bench Mark 133, San Juan Capistrano 31 Comment
  UCR222885  Baccharis pilularis subsp. consanguinea T. B. Salvato 2010-10-27 5127 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
  CAS-BOT-BC106732  Baccharis salicifolia Ira L. Wiggins 1966-2-4 20418 Orange Along watercourse near mouth of Trabuco Canyon Comment
  CDA10394  Baccharis salicifolia D. G. Kelch 2006-12-9 6 .557 Orange Irvine. University Dr along tidal creek just E of I-73. Comment
  RSA751987  Baccharis salicifolia Fred M. Roberts, Eliza Maher 2008-3-26 6799 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR192116  Baccharis salicifolia A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35295 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, c. 1.1 mi. E of Walnut Cyn Reservoir 277 Comment
  JEPS21245  Baccharis salicifolia subsp. salicifolia L. M. Booth 1932-6-9 1179 Orange Coastal Santa Ana River Basin Comment
  JEPS21281  Baccharis salicifolia subsp. salicifolia J. Thomas Howell 1927-10-23 3171 Orange Rancho Santa Ana, Santa Ana River Comment
  JEPS21857  Baccharis salicifolia subsp. salicifolia Annette Waters 1958-3-30 161 Orange 3.2 mi ne of, on State Highway 91, 18 Atwood Placentara turnoff Comment
  UC1532995  Baccharis salicifolia subsp. salicifolia Robert F. Thorne 1975-4-6 45577 Orange Head of Newport Bay Comment
  UCD129399  Baccharis salicina A. C. Sanders 1990-10-6 10199 Orange Newport Bay, North Star County Beach area on the SW end of the bay, ca. 2 km inland of Hwy 1. 1 Comment
  UCR66999  Baccharis salicina A. C. Sanders 1990-10-6 10199 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  UCR194992  Baccharis sarothroides A. C. Sanders, Fred M. Roberts 2008-8-7 35997 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along Windy Ridge Rd. near wash crossing, 1.0 mi. SSE of Walnut Canyon Reservoir 232 Comment
  UCR240177  Bacopa monnieri R. E. Riefner Jr. 2012-7-1 12- 295 Orange South Coast, city of Mission Viejo, Oso Creek, c. 1.3 mi north of Paseo de Colinas Ave. on Camino Capistrano Ave. 88 Comment
  RSA649689  Bahiopsis laciniata R. E. Riefner 2000-7-2 20 -602 Orange NCCP North Ranch Policy Plan Area. Along Black Star Canyon Road and along Silverado Creek. 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
  UC536942  Bassia hyssopifolia Lawrence M. Booth 1932-5-27 1130 Orange West Newport Beach Comment
  UCD97658  Bassia hyssopifolia Ira L. Wiggins 1966-4-1 20576 Orange Railroad embankment near entrance to Rancho Santa Ana. Comment
  RSA689547  Bassia hyssopifolia R. E. Riefner 2003-8-17 3 -332 Orange Costa Mesa, Talbert Regional Park, Discovery Walk Road and Balboa Avenue. 12 Comment
  RSA12654  Batis maritima C. B. Wolf 1934-7-29 6042 Orange Newport Bay. Comment
  RSA439760  Batis maritima Anstruther Davidson 1902-9-1 s.n. Orange Newport Beach Comment
  UC1779704  Batis maritima Rudolf Schmid 1999-7-14 1999 -7 Orange Bolsa Chica Marsh, S of Seal Beach. From the S side of parking lot by HW1. Comment
  UCR67007  Batis maritima A. C. Sanders 1990-10-6 10195 Orange Newport Bay, North Star County Beach Area on the SW end of the Bay, c. 2 km inland of Hwy 1. 3 Comment
  UC527451  Bebbia juncea var. aspera C. B. Wolf 1931-7-25 Orange n of Pear Orchard (Rancho Santa Ana, Santa Ana Canyon); Rancho Santa Ana, Santa Ana Canyon 121 Comment
  SEINET10448122  Begonia cucullata Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7137 Orange In vicinity of Laguna Beach. 152 Comment
  RSA151082  Bidens laevis Peter H. Raven 1961-10-15 16850 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  RSA160501  Bidens laevis J. D. Olmsted 1959-9-22 982 Orange Along Santa Ana River N of Sycamore Park along Hwy. 8-9mile WSW of Corona, betw Santa Ana Mts and Puente Hills to Pacific Ocean 137 Comment
  CAS-BOT-BC128000  Bidens pilosa Ira L. Wiggins 1965-10-24 20287 Orange Bank of storm drain at corner of Yorba Linda and State College Blvds., Fullerton Comment
  UCR140788  Bloomeria crocea Robin G. Marushia 2004-5-4 008 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
  UCR194556  Bloomeria crocea A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35329 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
  RSA113874  Bloomeria crocea var. crocea E. K. Balls 1956-5-17 21639 Orange Madrone Canyon, from plants native to area. grown from seed collection, June 19, 1949. Prop. No. 6309, Botanic Garden 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
  UCR12191  Bloomeria crocea var. crocea Art Whistler 1966-4-27 s.n. Orange Between Laguna Beach and Anaheim, via Laguna Canyon Rd. and probably Route 1 Comment
  UCR100445  Bolboschoenus maritimus subsp. paludosus B. G. Pitzer 1996-4-30 2772 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR102441  Bolboschoenus maritimus subsp. paludosus Scott D. White 1997-5-26 4814 Orange University of California, Irvine campus. Site of proposed student recreation center, east of main campus. Existing 'Farm School' & adjacent grasslands (horse pasture) between California Ave. & Culver Dr. 40 Comment
  UCR12590  Bolboschoenus maritimus subsp. paludosus J. S. Davis 1972-5-6 720506- 10 Orange South Coast, Newport Beach, between corner of San Joaquin Hills Road & Back Bay Road, & salt marsh flats. 0 Comment
  CAS-BOT-BC21117  Bolboschoenus robustus James R. Shevock 1972-9-27 2288 Orange South Coast Ranges. Upper Newport Bay, city of Newport Beach. 1 Comment
  RSA0059072  Bolboschoenus robustus CNPS Accuracy Assessment Team 2014-7-7 9342 .1 Orange San Joaquin Freshwater Marsh Reserve. Comment
  UCSB34951  Bolboschoenus robustus Ferren, Wayne; Whitmore, S. 1980-8-27 Orange In salt marsh of Newport Backbay; just W of Backbay Drive; ca. 3 km. NE of Rt. 1, Newport Beach Comment
  RSA703844  Bothriochloa barbinodis D. E. Bramlet, Fred M. Roberts 2003-3-13 3337 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
  RSA732250  Bothriochloa barbinodis A. C. Sanders, Fred M. Roberts 2008-4-22 35003 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
  IRVC25297  Bowlesia incana Helen Camp 1989-4-18 10 Orange Bell Canyon, lateral ridge on west side of canyon, 4.7km NNW Visitor Center; Casper's Regional Park 226 Comment
  RSA733843  Brachypodium distachyon A. C. Sanders 2008-4-29 35145 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
  CDA25879  Brassica nigra D. D. Nguyen, C. Nguyen 2006-2-4 3 Orange Southern Coastal; San Joaquin Marsh; northwest edge of Marsh. Comment
  IRVC1047  Brassica nigra S. Gilbert 1965-4-13 Orange 2472 Elden. Costa Mesa Comment
  CAS-BOT-BC36768  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange 2 miles east of Atwood on north side of Orangethorpe Avenue. Comment
  UCD114851  Brassica rapa Ira L. Wiggins 1965-12-5 20365 Orange Orange grove 2 mi. E. of Atwood on N. side of Orangethorpe Ave. Comment
  IRVC1014  Brassica rapa subsp. sylvestris 1965-5-25 Orange Corona del Mar, Begonia Ave. D.C. Newport Beach Comment
  SEINET7907478  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  SEINET7907479  Brassicaceae G. A. Wojciechowski 1967-1 Orange San Juan Capistrano beside rd 610 Comment
  UCR132985  Brickellia nevinii Adrian Wolf 2000-9-8 449 Orange Santa Ana Mtns., North Ranch Policy Plan Area, North Black Star Canyon, 2.1 km NNE of Black Star Coal Mine 503 Comment
  RSA779934  Brodiaea filifolia R. E. Riefner Jr. 2011-5-20 20760 Orange Newport Beach, Coastal Peak Park, East Coastal Peak Road at Ridge Park Road 305 Comment
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Dec 7 2014
  JEPS7700  Brodiaea terrestris subsp. kernensis Alice King Jun 1908 Orange Santa Ana Mts. Comment
  POM50858  Bromus carinatus Le Roy Abrams 1901-06 1844 Orange Mt. Santiago. Comment
  RSA562762  Bromus carinatus Steve Boyd, Timothy S. Ross 1992-5-19 7417 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. Comment
  RSA701598  Bromus carinatus Rankin s.n. Orange Santa Ana. Comment
  SD152997  Bromus carinatus Steve Boyd, Tim Ross 1992-5-19 7417 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 (7SO6) north into Aliso Canyon 366 Comment
  UCR191004  Bromus carinatus A. C. Sanders, Fred M. Roberts 2008-4-22 35025 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UC204884  Bromus carinatus var. carinatus R. L. Pendleton, F. M. Reed 1907-7-25 1195 Orange near Modjeska Falls (Lake Tahoe Region); Lake Tahoe Region Comment
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Sep 11 2013
  CAS-BOT-BC156202  Bromus catharticus I. L. Wiggins; J. H. Thomas 1962-6-27 308 Orange Near intersection of 18th and Main Streets, Santa Ana. Comment
  CAS-BOT-BC156203  Bromus catharticus Ira L. Wiggins 1965-9-29 20265 Orange Orange grove at corner of State College Boulevard and Nutwood Drive, margin of California State College at Fullerton campus, Fullerton. Comment
  UCD58368  Bromus catharticus John Thomas Howell 1956-3-11 30922 Orange Yorba Linda. Comment
  CAS-BOT-BC156002  Bromus diandrus John Thomas Howell 1927-6-9 2466 Orange North side Santa Ana Canon [Canyon]. 152 Comment
  CAS-BOT-BC156003  Bromus diandrus Ira L. Wiggins 1966-2-19 20454 Orange Roadside in Carbon Canyon near Orange County Survey bench mark RCE 7872. Comment
  RSA0058186  Bromus diandrus Fred M. Roberts 2014-4-21 7870 Orange South Coast: San Joaquin Hills: Upper Laguna Lake 1 (upper Laguna Lake), north basin. 113 Comment
  UCR190997  Bromus diandrus A. C. Sanders, Fred M. Roberts 2008-4-22 35051 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  UCR239626  Bromus diandrus Fred M. Roberts 2012-4-24 7494 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
  POM202274  Bromus diandrus L. M. Booth 1932-5-12 1014 Orange Newport Bay. Comment
  RSA126901  Bromus hordeaceus A. Lewis 1934-04 [ 387 ?] Orange 0.5 mile E of Borrego Canyon 457 Comment
  UCD58824  Bromus hordeaceus B. Pitzer 1996-4-30 2760 Orange Upper Newport Bay: Calif. Dept. Fish and Game Ecological Reserve, off (W of) Jamboree Rd. 6 Comment
  UCR100463  Bromus hordeaceus B. G. Pitzer 1996-4-30 2760 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  POM202590  Bromus hordeaceus L. M. Booth 1932-5-12 1023 Orange Newport Bay. Comment
  RSA696603  Bromus hordeaceus Rankin s.n. Orange Santa Ana. Comment
  RSA713565  Bromus inermis subsp. inermis R. E. Riefner Jr. 2005-10-1 5 -702 Orange City of Costa Mesa, South Coast Dr. at Susan Rd. 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
  UCD59517  Bromus rubens Ira L. Wiggins 1966-3-4 20494 Orange Shoulder of Peralta Ave. near junction of Newport Freeway and Riverside Highway. 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
  CDA22568  Bromus tectorum J. B. Anderson 1966-4-19 601 Orange Upper Newport Bay. 0 Comment
  UCSB47951  Bromus tectorum Roberts, Dar 1980-5-3 Orange 1.8 km W Trabuco Peak on Main Divide Truck Trail;, and Trail Trail 1256 Comment
  RSA696619  Bromus unioloides Keith E. Hoffmaster 1934-04 79 Orange Santa Ana. Comment
  RSA0065566  Buddleja asiatica Doug Bell 1949-1-29 s.n. Orange Garden Grove. 182 Comment
  POM122271  Cakile edentula subsp. edentula Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  RSA649676  Calamagrostis koelerioides R. E. Riefner 2000-6-26 20 -579 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N and W of Black Star Canyon Road at powerline tower. 631 Comment
  CAS-BOT-BC354307  Calandrinia breweri R. E. Riefner, Jr. 2008-3-5 08 -31 Orange Irvine Ranch Reserve, North Irvine Ranch, S of Windy Ridge Rd., ca 0.5 mi from West Fork of upper Fremont Canyon 508 Comment
  IRVC29098  Calandrinia ciliata Fred M. Roberts 1989-3-17 4213 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA743380  Calandrinia ciliata Fred M. Roberts 2008-4-9 6860 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  SEINET11861030  Calendula arvensis J. F. Bright, Wyman, C. 1933-3-5 8013 Orange in Santa Ana foothills Comment
  RSA696973  Calendula officinalis Ruth Greenwald 1938-05 s.n. Orange Santa Ana Comment
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Jun 10 2012
  RSA697067  Calendula officinalis Kenneth Beard 1934-02 s.n. Orange Garden, Santa Ana Comment
  UCR199267  Callistemon viminalis R. E. Riefner Jr. 2007-4-1 07- 163 Orange South Coast, city of Laguna Niguel, Oso Creek, c. 1.5 mi 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-BC132256  Calochortus catalinae Agnes M. Bowman 1899-5-1 s.n. Orange Santiago Cr. Comment
  POM13942  Calochortus catalinae William M. Pierce 1922-4-11 s.n. Orange Santa Ana Mountians, Santa Ana Canyon. Comment
  RSA0013958  Calochortus catalinae Fred M. Roberts 2008-5-7 6938 Orange Lomas de Santiago: Loma Ridge, Limestone Ridge between Dripping Spr. and Limestone Cyn., 3.5 km NW Bolero Lookout and 1.7 km E Bee Peak. Irvine Ranch Conservancy. 481 Comment
  RSA777234  Calochortus catalinae Orlando Mistretta, Christine Mistretta 2010-4-23 5073 Orange Vicinity of Tonner Cyn. Along Southern Califonia Edison Transmission Line corridor (Segment 8, map sheet 83 per TRTP survey 2010) 338 Comment
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Feb 24 2018
  RSA708370  Calochortus invenustus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6241 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA679228  Calochortus splendens Fred M. Roberts 2003-6-25 5942 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA68627  Calochortus splendens Frank W. Peirson 1922-5-18 3061 Orange Santa Ana River 122 Comment
  UCR52320  Calochortus splendens R. Ascanio 1988-5-25 s.n. Orange Hwy 74 c. 5 mi east of San Juan Capistrano Comment
  CAS-BOT-BC492701  Calochortus splendens Philip A. Munz 1949-5-26 13371 Orange Skyline Drive, at head of Sierra Canyon; Santa Ana Mountains 762 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
  UCR193353  Calochortus weedii A. C. Sanders, Joshua M. Brokaw 2008-5-28 35427 Orange Peninsular Range; Santa Ana Mtns., upper Weir Canyon, along old dirt road west of Eastern Transportation Corridor, 1.65 mi. east of south end of Walnut Cyn Reservoir 372 Comment
  UCSB50637  Calochortus weedii Roberts, Fred 1982-7-8 Orange Laguna Niguel; canyone near Pacific Island Dr., 1.4 km ESE Aliso Peak, 1.1km NE Bench Mark 133 205 Comment
  RSA131397  Calochortus weedii var. intermedius E. K. Balls 1958-6-27 23278 Orange Silverado Canyon, Santa Ana Mountains, 2.8 miles E from Silverado Station. 732 Comment
  RSA20925  Calochortus weedii var. intermedius E. R. Johnson 1937-7-10 9019 Orange Chino-Puente Hills, NW. of La Vida Springs (Mrs. Bryants Property) Comment
  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
  RSA741725  Calochortus weedii var. intermedius R. E. Riefner 2008-6-3 8 -138 Orange Irvine Ranch Reserve, Fremont Canyon Conservation Easement, E fork Fremont Canyon, Black Star SCE Rd. 622 Comment
  RSA753166  Calochortus weedii var. intermedius D. E. Bramlet 2008-5-9 4263 Orange Ridgeline between the upper two tributaries of Wier Cyn. 1.2km east of S. Serrano Ave & 1.3km west of Gypsum Cyn. 330 Comment
  UC1952572  Calochortus weedii var. intermedius D. Bramlet 1994-6-2 2378 Orange San Joaquin Hills. On ridgeline north of Little Sycamore Canyon. The site is located 244 m NE of Little Sycamore Canyon and 1.3 km west of Laguna Cyn. Road. Comment
  RSA162004  Calochortus weedii var. weedii J. D. Olmsted 1958-6-10 156 Orange 6.5 miles SW of Corona on Oak Flat fire road (turn S in Corona from US onto Lincoln) Comment
  RSA506434  Calochortus weedii var. weedii Kathy Harper 1988-7-16 s.n. Orange Cleveland National Forest, on Hwy 74 near El Cariso. SE of Hwy Comment
  RSA587889  Calycadenia tenella Fred M. Roberts 1990-5-7 4610 Orange Rancho Mission Viejo: Ridge S of Blind Canyon and Christianitos Canyon, TRW Lease Holding, 5.0 km NE Clemente Survey Marker 152 Comment
  RSA750000  Calycadenia tenella A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35323 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
  RSA92227  Calycadenia tenella F. W. Peirson 1922-5-18 1353 Orange Santa Ana River 122 Comment
  RSA92273  Calycadenia tenella F. W. Peirson 1926-4-25 6643 Orange Laguna canyon 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
  UCR109765  Calystegia macrostegia R. D. Goeden, Don W. Ricker 1965-6-21 s.n. Orange Dana Point 61 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
  RSA558  Calystegia macrostegia subsp. intermedia J. T. Howell 1927-6-9 62 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA683073  Calystegia macrostegia subsp. intermedia Fred M. Roberts 2003-3-13 5591 Orange Donna O'Neill Land Conservancy: Ridge west of Christianitos Canyon, 1,320m NW Sycamore Gate and 880m W Cristianitos Rd. 179 Comment
  RSA659546  Calystegia macrostegia subsp. macrostegia P. Shirokawa 1998-5-7 16 Orange Cleveland National Forest- Trabuco Ranger District, 0.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road. 808 Comment
  RSA697156  Calystegia occidentalis subsp. occidentalis Kenneth Beard s.n. Orange Between Irvine & S.J. Capistrano. Comment
  JEPS47844  Calystegia sepium subsp. binghamiae Frank W. Peirson 1926-9-26 7086 Orange Wintersberg. Comment
  RSA17267  Calystegia soldanella C. B. Wolf 1936-7-8 2600 Orange Mouth of Santa Ana River. 3 Comment
  UCR193261  Camissonia A. C. Sanders, Fred M. Roberts 2008-6-17 35521 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  HSC16412  Camissonia bistorta J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  RSA585184  Camissonia cheiranthifolia subsp. cheiranthifolia D. Atwood 1993-3-27 17699 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  UCR12582  Camissonia cheiranthifolia subsp. cheiranthifolia J. S. Davis 1972-5-6 720506- 16 Orange South Coast, Newport Beach, 100 yards from the corner of San Joaquin Hills Road and Back Bay Road. 0 Comment
  CSUSB188  Camissonia cheiranthifolia subsp. suffruticosa Cesareo Perez 1971-5-12 Orange Huntington State Beach, Pacific Coast Highway at Brookhurst Comment
  RSA698259  Camissonia cheiranthifolia subsp. suffruticosa Unspecified 1927-3-16 s.n. Orange Newport Bluff. Comment
  UCR144136  Camissonia intermedia Scott D. White 2003-3-21 8826 Orange Peninsular Range/Santa Ana Mtns, Foothills [above] Rancho Mission Viejo; E-facing slopes above an unnamed tributary to San Juan Creek 183 Comment
  UCR193415  Camissonia micrantha A. C. Sanders, Fred M. Roberts 2008-6-17 35522 Orange Peninsular Range; Santa Ana Mtns., middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 230 Comment
  UCR175054  Camissonia robusta Vanessa Lee 2005-4-24 s.n. Orange South Coast, Crystal Cove, Laguna Beach, above Pacific Coast Highway 61 Comment
  RSA4784  Camissonia strigulosa James Snow s.n. Orange Bryant Ranch, near Long Beach, Station #7. Plant 3. Comment
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Apr 29 2010
  SDSU3403  Camissonia strigulosa H. Wedberg 1958-3-29 179 Orange On Hwy 74, about 5.6 miles NE from the mission in San Juan Capistrano Comment
  SDSU3324  Camissoniopsis bistorta H. Wedberg 1958-3-29 175 Orange On road around south edge of Newport Bay, about 2.3 miles from Pacific Coast Highway. 3 Comment
  UC1618042  Camissoniopsis bistorta Donald G. Nelson 1935-3-23 179 Orange Hills north of Fullerton Comment
  UC2030082  Camissoniopsis micrantha Valerie Soza, K. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, G. D. Wallace 2001-4-4 1125 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. Comment
  CAS-BOT-BC37127  Capsella bursa-pastoris Ira L. Wiggins 1966-2-25 20476 Orange Firestone Boy Scout Reservation, east of Brea. Comment
  IRVC29088  Capsella bursa-pastoris Fred M. Roberts 1989-3-17 4203 Orange Aliso Canyon, 3.3km SSE Moulton Pk. Aliso-Wood Canyon Regional Park 30 Comment
  RSA0054945  Capsella bursa-pastoris Keith E. Hoffmaster 1927-2-12 395 Orange Santa Ana. Comment
  RSA697415  Capsella bursa-pastoris Snow 1929-2-16 3 Orange Santa Ana. Comment
  CAS-BOT-BC37595  Cardamine californica C. B. Wolf 1931-3-6 1851 Orange West slope of Santa Ana Mountains. Trabuco Canyon. Trabuco Camp Ground. 609 Comment
  LA204284  Cardamine californica C. B. Wolf; 1931-3-6 1851 Orange Trabuco Camp Ground, Trabuco Canyon, west slope of the Santa Ana Mts Comment
  RSA1442  Cardamine californica var. integrifolia J. T. Howell 1929-2-11 1226 Orange Claymine Canyon, Samta Ana Mts. 305 Comment
  UCR237835  Cardamine flexuosa Mark A. Elvin 2003-2-2 2298 Orange South Coast, UC Irvine Arboretum, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 17 Comment
  UC537121  Cardaria draba Lawrence M. Booth 1932-5-15 1197 Orange e of Huntington Beach Comment
  CAS-BOT-BC282975  Carduus pycnocephalus Steve Boyd; Tim Ross 1992-5-19 7427 Orange S Santa Ana Mountains, San Mateo Canyon Wilderness Area. W edge of the wilderness along Lucas Canyon Trail from access road to Rancho Carrillo (7S06) N into Aliso Canyon 457 Comment
  UCR52601  Carduus pycnocephalus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  SBBG52701  Carex globosa C. Davidson 1977-5-18 5621 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  CAS-BOT-BC119005  Carex pellita Helen D. Geis 1902-4-1 s.n. Orange Santa Ana. Peat lands. Comment
  CAS-BOT-BC118481  Carex praegracilis L. M. Booth 1932-6-1 1207 Orange Newport Bay. Comment
  CAS-BOT-BC118485  Carex praegracilis Helen D. Geis 1902-4-1 567 Orange Unspecified Comment
  CAS-BOT-BC118496  Carex praegracilis Helen D. Geis 1902-1-1 504 Orange Near Santa Ana Comment
  RSA542341  Carex praegracilis Fred M. Roberts, Dar A. Roberts 1989-3-22 4215 Orange Aliso-Wood regional Park: Lower Wood Canyon, 3.6 km SSE Moulton Peak. 34 Comment
  SEINET7572179 Image available Carex praegracilis Helen D. Geis 1902-1 505 Orange [no precise loc] Comment
  SEINET10447212  Carpobrotus aequilaterus Melvin L. Conrad, David B. Dunn 1973-6-13 Conrad 7130 Orange In vicinity of Laguna Beach. 152 Comment
  RSA696447  Carpobrotus chilensis Minor Warne 1934-4-7 s.n. Orange New Port Beach Comment
  SEINET7896473  Carpobrotus chilensis P. S. Rattle 1939-3 Orange Balboa Island Comment
  CDA37853  Carthamus creticus D. Asakawa 1988-1 s.n. Orange Off Tonner Canyon Road. 0 Comment
  RSA1701  Castilleja affinis Carl B. Wolf 1931-3-6 1836 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  RSA82234  Castilleja affinis F. W. Peirson 1923-3-25 3376 Orange Aliso Canyon, near Laguna Beach. 152 Comment
  UCR191447  Castilleja affinis A. C. Sanders, Fred M. Roberts 2008-4-8 34759 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
  JEPS51261  Castilleja affinis subsp. affinis Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4353 Orange 0.7 mi s Modjeska Canyon (on road to Cook's Corners) 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
  SBBG52723  Castilleja applegatei subsp. martinii C. Davidson 1977-5-18 5628 Orange Bear Springs, Santa Ana Mtns 1219 Comment
  UCR256945  Castilleja exserta subsp. exserta Naomi Fraga 2009-5-11 2717 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  UCSB9376  Castilleja exserta subsp. exserta Lloyd, Robert 1959-4-17 Orange Mt. Range Santa Ana; 10 mi S of W Corona; on the Oak Flats Fire Road 792 Comment
  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
  RSA699996  Castilleja foliolosa L. C. Hull 1934-4-29 s.n. Orange Trabuco Canyon 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
  SD245474  Castilleja minor subsp. spiralis Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49584 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
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Jun 16 2016
  RSA598022  Caulanthus heterophyllus D. Bramlet 1994-4-30 2376 Orange San Juaquin Hills, on ridgeline above Camarillo canyon, beside the Camarillo Spur (E side) road. The site if located 1.5km W of Laguna Canyon, 198m NE of the Shady Camarillo Canyon road jct. Comment
  UCR191458  Caulanthus heterophyllus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34652 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
  UC1070888  Ceanothus R. St. John 1931-3-17 196 Orange N of Sierra Peak 609 Comment
  CAS-BOT-BC48492  Ceanothus crassifolius Helen D. Geis 1902-4-1 s.n. Orange Santiago Canyon Comment
  RSA304750  Ceanothus crassifolius James R. Shevock 1971-2-25 197 Orange Mojeska Cyn, Santa Ana Mts. 305 Comment
  RSA542418  Ceanothus integerrimus Fred M. Roberts, Karlin G. Marsh 1987-5-14 3440 Orange Santa Ana Moutains: Upper Trabuco Canyon, Trabuco Canyon Trail , 1.3 km NE Los Pinos Peak 1231 Comment
  RSA797906  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49816 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  SD255266  Ceanothus integerrimus Robert F. Thorne, E. W. Lathrop 1977-5-18 49742 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA659543  Ceanothus leucodermis P. Shirokawa 1998-5-7 19 Orange Cleveland National Forest- Trabuco Ranger District, 2.3 miles from Ortega Highway (State Highway 74) on North Main Divide Road 960 Comment
  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
  CAS-BOT-BC50508  Ceanothus megacarpus var. megacarpus John Thomas Howell 1927-7-24 2828 Orange Claymine Canyon, n. Santa Ana Mts. 152 Comment
  RSA0054960  Ceanothus oliganthus Keith E. Hoffmaster 1936-4-5 707 Orange Black Star can., Santa Ana Mts. Comment
  SBBG128668  Ceanothus oliganthus R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49699 Orange Sierra Peak; Santa Ana Mtns Comment
  CLARK-A1528-3898  Ceanothus papillosus subsp. roweanus John C. Roos 1962-5-5 Orange Santa Ana Mountains Comment
  IRVC28204  Ceanothus papillosus subsp. roweanus A. C. Sanders, Mark A. Elvin 2005-9-2 31610 Orange Upper Holy Jim Canyon, a major tributary of Trabuco Cyn, along trail in the switchbacks. Santa Ana Mountains 970 Comment
  RSA608242  Ceanothus papillosus var. roweanus Steve Boyd, Bart O'Brien 1998-1-13 10076 Orange Santa Ana Mountains: north end of the range, NW of Pleasants Peak, along Main Divide Road (3S04) ca. 4.9 mi south of Oak Flat, at saddle between Hagador and Baker canyons. 1165 Comment
  SD247719  Ceanothus papillosus var. roweanus R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49697 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  POM305816  Ceanothus spinosus Henry J. Ramsey, Henry J. Ramsey 1937-4-2 1043 Orange Capistrano Canyon. Comment
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Dec 17 2011
  RSA17567  Ceanothus spinosus Carl B. Wolf 1936-6-17 7950 Orange Along Ortega Hiway, San Juan canyon, 0.2 mi. W. of Riverside Co. line. 274 Comment
  RSA797598  Ceanothus spinosus Robert F. Thorne 1977-11-21 49995 Orange Santa Ana Mountains: tributary canyon to San Juan Canyon about 2 miles above San Juan Fire Station Comment
  UC1071372  Ceanothus spinosus A. Lewis Apr 1934 383 Orange Santiago Canyon Cleveland National Forest, Corona Quad. Comment
  UCSB48024  Ceanothus spinosus Roberts, Fred 1981-4-11 Orange Santa Ana Mtns.: San Juan Canyon, hwy. 74, 3.7km E San Juan Guard Station 114 Comment
  CAS-BOT-BC63299  Ceanothus tomentosus var. olivaceus Helen D. Geis 1904-4-1 724 Orange Silverado Canyon, Santa Ana Mts. 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
  RSA0035211  Cenchrus setaceus Sandy Gray 1981-04 1 Orange Hwy. 142, Carbon Canyon Rd. 3 miles west of Cavida, Chino. Comment
  RSA697730  Cenchrus spinifex J. Vlahos 1933-10-5 s.n. Orange Santa Ana River Bed by 17th St. bridge. Comment
  CAS-BOT-BC277102  Centaurea melitensis Ira L. Wiggins 1966-5-25 20663 Orange Along Nutwood Lane, south margin of campus of CSCF, Fullerton Comment
  RSA562805  Centaurea melitensis Steve Boyd, Timothy S. Ross 1992-5-20 7477 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
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Apr 29 2008
  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
  RSA735173  Centaurea melitensis A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35276 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir. 300 Comment
  UCR80034  Centaurea melitensis Scott D. White 1992-10-1 953 Orange City of Brea, immediately north of Carbon Canyon Road & east of Placentia Ave. c. 1 mi (airline) S-SE of Tonner Canyon. 183 Comment
  CAS-BOT-BC277103  Centaurea melitensis Ira L. Wiggins 1966-5-4 20659 Orange Along Associated Road near Imperial Highway Comment
  RSA0065467  Centaurea melitensis J. Bruce Smiley 1940-5-4 s.n. Orange Santa Ana Wash. 457 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
  UCR130341  Centaurea repens A. C. Sanders, Mark A. Elvin 2003-10-12 27321 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  RSA699754  Centaurium venustum Fred M. Roberts, David Bramlet 2003-6-6 5886 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
  UCR230837  Centaurium venustum Dick Newell, Judy Booth 2011-6-26 195 Orange Peninsular Range; Santa Ana Mtns., Long Canyon Rd., NW of Hwy 74, Cleveland National Forest 965 Comment
  CAS-BOT-BC288845  Centromadia parryi subsp. australis David D. Keck 1932-9-30 1897 Orange Ca 5 miles S of Santa Ana on road to Newport Beach Comment
  RSA708451  Centromadia parryi subsp. australis Mark Elvin 2003-8-24 3012 Orange Southern coastal: San Jaquin Hills, Irvine, UCI, 100m N of the intersection of Shady Canyon Drive and Bonita Canyon Road. 72 Comment
  RSA758074  Centromadia parryi subsp. australis D. E. Bramlet 2008-9-17 4306 Orange Upper Newport Bay, West Mesa, 76m E Irvine Ave. & 305m S of University Dr. 20 Comment
  SD218273  Centromadia parryi subsp. australis Mark A. Elvin 2003-8-24 3012 Orange Southern coastal: San Joaquin Hills, Irviine, UCI, 100 m north of the intersection of Shady Canyon Drive and Bonita Canyon Road. 71 Comment
  RSA708722  Cercocarpus betuloides Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6226 Orange west slope of Modjeska Peak, Harding Canyon watershed, Main Divide Road, 0.46km W summit. 1670 Comment
  UCR98300  Cercocarpus betuloides Scott D. White 1997-3-28 4827 Orange Santa Ana Mountains, Above Modjeska Canyon, proposed water tank site. 488 Comment
  RSA0014996  Cercocarpus betuloides var. betuloides Fred M. Roberts 2008-5-14 6963 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
  UCSB48217  Cercocarpus betuloides var. betuloides Roberts, Fred 1981-4-11 Orange Santa Ana Mtns., San Juan Canyon, Hwy 74, 2.7km ENE San Juan Guard Sta. 325 Comment
  UCR16880  Chaenactis glabriuscula N. J. Moriarty 1973-5-27 730527 -4 Orange San Clemente State Beach, 0.5 mi south of Avenue Califia end Comment
  JEPS34213  Chaenactis glabriuscula var. glabriuscula Alice King 1908-3-1 Orange Santa Ana Anaheim Plains Comment
  POM351783  Chaenactis glabriuscula var. glabriuscula M. B. Dunkle 1938-6-23 5376 Orange San Juan Canyon. Comment
  RSA542427  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts 1988-4-11 3901 Orange Lomas De Santiago; Loma Ridge, Upper Limestone Canyon, c.a. 3.2 km NNW Bolero Lookout Comment
  UC718397  Chaenactis glabriuscula var. glabriuscula P. C. Everett 1935-5-17 Orange 7/8 mi e of Atwood (s side of Santa Fe Railroad tracks) 152 Comment
  UCR209359  Chaenactis glabriuscula var. glabriuscula Fred M. Roberts, D. E. Bramlet, Megan Lulow 2008-4-4 6845 Orange Lomas de Santiago, Loma Ridge, at Calochortus Ridge near East Lomas Ridge Road, 0.7 km east of Bee Peak, Irvine Ranch Conservancy 509 Comment
  POM6049  Chaenactis glabriuscula var. lanosa L. R. Abrams 1903-4-13 3254 Orange Buena Park Comment
  HSC7984  Chamaesyce albomarginata C. L. Hitchcock 1966-3-15 24140 Orange Stearns Lease, 1.5 mi. E of Brea. Comment
  RSA184133  Chamaesyce albomarginata I. L. Wiggins 1965-11-6 20342 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  POM2858  Chamaesyce polycarpa var. polycarpa D. L. Crawford s.n. Orange Aliso Pt. (Laguna Beach region) Comment
  IRVC850  Chamomilla suaveolens L. Burns 1965-4-6 Orange Comment
  IRVC26744  Chasmanthe floribunda Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3181 Orange UCI Arboretum Southern Coastal 15 Comment
  POM9098  Cheilanthes newberryi P. A. Munz, R. D. Harwood 1920-4-24 3763 Orange Santa Ana Mountains, Sierra [Freemont] Canyon 366 Comment
  IRVC9289  Chenopodium album B. Gittins 1963-3-19 60 Orange 635 Joan. Costa Mesa Comment
  SD236265  Chenopodium album A. C. Sanders, Fred M. Roberts 2008-9-18 36065 Orange Peninsular Range; Santa Ana Mtns Foothills: Lomas de Santiago, Santiago Creek Canyon ca. 1 mile above the highway bridge (El Roro 7.5'Q) 320 Comment
  UCR46566  Chenopodium ambrosioides B. G. Pitzer, D. C. Hawks 1986-10-21 0351 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
  RSA184116  Chenopodium ambrosioides I. L. Wiggins 1965-11-5 20319 Orange Edge of orange grove near corner of Dowling Street and Crowther Ave., Placentia. Comment
  UCR192993  Chenopodium berlandieri A. C. Sanders, Fred M. Roberts 2008-5-6 35218 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  POM201802  Chenopodium berlandieri var. sinuatum L. M. Booth 1933-9-2 1389 Orange Santa Ana River; flood bed near coast of Orange. Comment
  RSA725467  Chenopodium berlandieri var. sinuatum Fred M. Roberts, Megan Lulow 2007-7-30 6551 Orange Fremont Canyon, 1.3 km NE Irvine Lake spillway, North Irvine Ranch Policy Area. 253 Comment
  RSA262  Chenopodium californicum J. T. Howell 1928-2-25 840 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA747591  Chenopodium californicum Fred M. Roberts 2000-5-5 5319 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
  RSA234524  Chenopodium macrospermum var. farinosum James Henrickson 1970-9-5 5346 Orange 3 miles NW of Huntinton Beach, at southern margin of Bolsa Chica Mesa. 0 Comment
  IRVC27496  Chenopodium murale Mark A. Elvin 2004-5-2 3403 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 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
  RSA562753  Chenopodium murale Steve Boyd, Timothy S. Ross 1992-5-19 7429 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
  RSA696281  Chenopodium murale Keith E. Hoffmaster 1927-02 s.n. Orange Santa Ana. Comment
  UCSB48085  Chenopodium murale Roberts, Jr., Fred 1981-5-2 Orange Mission Viejo; Camino Capistrano, 1.7 km. N Crown Valley Parkway 49 Comment
  RSA86738  Chloris gayana F. W. Peirson 1926-9-26 7087 Orange Wintersburg. Comment
  RSA450089  Chorizanthe fimbriata J. C. Roos 1965-6-16 s.n. Orange Dana Point near Doheney Beach. Comment
  UCR126795  Chorizanthe polygonoides var. longispina Kristin Szabo 2001-5-29 s.n. Orange Santa Ana Mountains, Gypsum Canyon within boundary of Mountain Park project Comment
  RSA739343  Chorizanthe procumbens Keith E. Hoffmaster 1935-4-19 298 Orange Santiago can. near Silverado ca., Santa Ana Mountains. Comment
  CAS-BOT-BC255251  Chorizanthe staticoides P. C. Everett 1935-4-29 6711 Orange Santa Ana Canyon, 7/10 mile W of Esperanza 152 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
  RSA587873  Chorizanthe staticoides Fred M. Roberts, Carol A. Roberts 1990-5-16 4627 Orange Santa Ana Mtns: Small canyon along SE side of Irvine Mesa, 3.5 km N Bolero Lookout 396 Comment
  UC635059  Chorizanthe staticoides Herbert L. Mason 1926-4-25 2913 Orange 5 mi below Laguna; below Laguna Comment
  IRVC27493  Chrysanthemum coronarium Mark A. Elvin 2004-5-2 3407 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR220970  Chrysanthemum coronarium Dick Newell, Don Millar 2010-4-13 19 Orange Peninsular Range; Santa Ana Mtns. Foothills, Portola Parkway at tollroad 241 244 Comment
  UC1598731  Cicuta maculata var. bolanderi Lawrence M. Booth 1932-7-29 1333 Orange Newport Lagoon Comment
  CLARK-A1528-1094  Cirsium occidentale Michelle Loef 1973-5-25 250573-2 Orange 91 Comment
  RSA569735  Cistanthe monandra A. S. Boughey 153 Orange Santa Ana Mountains: Ortega Hwy., ca. 1 mi. east of San Juan Guard Sta. Comment
  RSA731913  Cistus creticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6666 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
  POM153245  Clarkia bottae C. L. Hitchcock 1928-5-5 49 Orange Mouth of Santa Ana Canyon. 150 Comment
  POM6353  Clarkia dudleyana L. T. Street, Williams 1919-5-10 2752 Orange Turnbull Canyon. Near Whittier 305 Comment
  SEINET7067523  Clarkia purpurea subsp. quadrivulnera A. G. Vestal 1947-6-12 s.n. Orange Canyon Road to Trabuco Canyon. Coordinate datum: NAD27. UTM Zone 11, 444428mE, 3723792mN. Comment
  RSA581440  Clarkia purpurea subsp. quadrivulnera Fred M. Roberts, Gordon Marsh 1989-5-12 4359 Orange Santa Ana Mountains: Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.3 km WSW Laurel Springs. 430 Comment
  CAS-BOT-BC172351  Clarkia purpurea subsp. viminea Munz; Street; Williams 1919-5-3 2669 Orange Santa Ana River Canyon Comment
  UCR193388  Claytonia parviflora A. C. Sanders, T. B. Salvato 2008-5-13 35330 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
  RSA184092  Claytonia perfoliata subsp. mexicana I. L. Wiggins 1966-3-22 20548 Orange Silverado Canyon about 5 miles above Ranger Station, Cleveland National Forest. Comment
  UC1136736  Claytonia perfoliata subsp. mexicana A. Lewis 1934-4-1 378 Orange Coal Mine; Corona Quad. 243 Comment
  RSA700034  Clematis lasiantha R. H. McArthur 1934-4-28 s.n. Orange Ladd Canyon Comment
  RSA297  Clematis ligusticifolia J. T. Howell 1927-4-13 622 Orange Santa Ana River bottom, Rancho Santa Ana. 152 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
  UCSB48362  Clinopodium chandleri Roberts, Fred 1982-4-18 Orange Santa Ana Mtns.: Upper Hot Springs Cyn., 0.1 km SW Falcon Group Camp; 2.0 km SE Los Pinos Peak 1075 Comment
  UCR166704  Cneoridium dumosum Scott D. White, Jennifer H. Jones 2005-3-31 10853 Orange South Coast, City of Laguna Beach. 549 Nyes Place. Proposed home site on c. 0.5 acre. 91 Comment
  RSA33582  Collinsia heterophylla N. C. Cooper 1944-6-4 1361 Orange San Juan Canyon, lower camp ground. 457 Comment
  RSA542502  Collinsia heterophylla Bernard Jaroslow 1989-5-29 B- 28 Orange Above upper Santiago Creek. Comment
  SEINET8584808 Image available Conium maculatum T. C. Arambula 1966-1 53 Orange Brea, Carbon Canyon Rd Comment
  UCR73105  Conium maculatum Scott D. White 1992-9-23 861 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Canyon Road and east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Canyon 183 Comment
  UCR97574  Conium maculatum B. G. Pitzer 1997-4-15 3130 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
  IRVC26825  Conium maculatum S. D. White, Brian Leatherman 1997-6-12 5310 Orange E of Dan Juan Capistrano: San Juan Creek between Hwy 74 bridge and Mission Vieja site (ca. 2 to 4 miles E of I-5/Hwy 74 jctn). Southern Coastal 46 Comment
  RSA234477  Conium maculatum James Henrickson 1970-7-25 5067 Orange 2 miles N of Huntington Beach along NE margin of Bolsa Chica Salt March 0 Comment
  CDA32186  Convolvulus arvensis T. McCrainie, Mark A. Elvin 2006-9-23 8 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
  SD143550  Convolvulus arvensis R. D. Goeden, D. W. Ricker 1965-6-15 12481 UC Orange Northwest of El Toro: Tustin Township, near Borrego Canyon Wash, southeast edge of El Toro Marine Corps Air Station. 106 Comment
  UCSB6907  Convolvulus arvensis Haller, Norman 1953-4-25 Orange U.S. 101, 3 miles northwest of Laguna Beach Comment
  RSA0045316  Convolvulus subacaulis Ophelia Frost 1932-4-2 s.n. Orange At the Dam above Orange County Road. 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
  POM201847  Conyza canadensis L. M. Booth 1932-12-13 1375 Orange Newport Bay. Comment
  RSA0036109  Conyza canadensis Fred M. Roberts, Carol A. Roberts 2008-9-28 7113 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5km W Marine Institute (Dana Point Harbor) 75 Comment
  RSA232215  Conyza canadensis James Henrickson 1970-8-22 5296 Orange 2.5 miles NNW of Huntington Beach. 0 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
  IRVC24159  Conyza coulteri Fred M. Roberts 1985-9-16 2234 Orange Peter's Creek Channel, 0.1km N Main St. bridge, Irvine 6 Comment
  RSA234511  Conyza coulteri James Henrickson 1970-8-22 5297 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  UCR192729  Conyza floribunda A. C. Sanders, Fred M. Roberts 2008-5-6 35210 B Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  CHSC22354  Cordylanthus maritimus Robert A. Schlising 1972-5-1 3017 Orange Upper Newport Bay, east of Costa Mesa; saltmarsh along Bayside Drive. Comment
  RSA0135556  Cordylanthus maritimus subsp. maritimus David E. Bramlet 2005-7-1 3888 Orange Upper Newport Bay, west side of the Bay approximately 61m east of the end of Mariners Drive. Some 611m NW of the Big Canyon area. 0 Comment
  RSA486866  Cordylanthus maritimus subsp. maritimus Gordon Marsh 1974-5-29 14209 Orange On east side of upper Newport Bay 2 Comment
  UCR52604  Cordylanthus rigidus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  RSA780826  Cordylanthus rigidus subsp. setiger Sandy Leatherman 2011-7-2 2011 -20 Orange Peninsular Ranges; Chino-Puente Hills region; 50 meters west of Carbon Canyon Road and Lions Canyon Road in Carbon Canyon in the City of Brea 274 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-BC101294  Corethrogyne filaginifolia John Thomas Howell 1927-9-24 3106 Orange on n. s. of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC101297  Corethrogyne filaginifolia Marcus E. Jones 1924-8-26 s.n. Orange Newport Comment
  SD236212  Corethrogyne filaginifolia A. C. Sanders, Fred M. Roberts 2008-7-16 35825 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, along road in lower Limestone Canyon, near junction with Harding Truck Trail (El Toro 7.5'Q) 289 Comment
  PASA1814  Corethrogyne filaginifolia Frank W. Peirson 1924-8-29 Orange 2 miles from Balboa on toad inland along creek Comment
  SEINET11843910  Corethrogyne filaginifolia var. virgata S. A. Thompson, Rawlins, J. E. 1988-1 5265 Orange Cleveland National Forest, 3.8 mi E of San Juan Hot Springs on CA 74 370 Comment
  CAS-BOT-BC287224  Cotula australis Ira L. Wiggins 1966-2-5 20423 Orange Fairgrounds, Costa Mesa Comment
  UCR100452  Cotula coronopifolia B. G. Pitzer 1996-4-30 2774 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  UCR106873  Cotula coronopifolia Michael A. Patten, Steve Myers 1993-3-9 s.n. Orange Tustin, Marine Corps Air Station 107 Comment
  UCR142748  Cotula coronopifolia C. B. Wolf 1932-3-8 2692 Orange South Coast, Sunset Beach, [Bolsa Chica] at southern city limits 2 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
  UC1930991  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06 -407 Orange South Coast: Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. Comment
  UCR182817  Cotyledon orbiculata R. E. Riefner Jr. 2006-8-25 06- 407 Orange South Coast, Dana Point Harbor, Dana Point Harbor Dr. at Ensenada Pl. 13 Comment
  CAS-BOT-BC427770  Crassula connata C. B. Wolf 1931-3-6 1844 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  RSA773507  Crassula connata Fred M. Roberts 1999-5-14 5227 Orange Lomas de Santiago: Loma Ridge, Upper Limestone Canyon, 0.7 km NW Bolero Spring and 2.6 km SW Silverado School 490 Comment
  UC1543005  Crassula connata Donald G. Nelson 1935-3-23 178 Orange just s. of <Orange thorpe> Ave. E. Fullerton Comment
  UCR103791  Crassula connata Scott D. White 1997-2-19 4700 Orange Santa Ana Mtns, above Modjeska Canyon; proposed water tank site 488 Comment
  RSA680734  Crassula erecta Scott D. White 2003-3-21 8820 Orange Santa Ana Mountain Foothills: Rancho Mission Viejo. East-facing slopes above an unnamed tributary to San Juan Creek. 122 Comment
  RSA627790  Cressa truxillensis Scott D. White 1998-6-26 6781 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UCD169755  Crocanthemum aldersonii R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49679 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. 457 Comment
  JEPS52469  Croton californicus Alice King Mar. 1908 Orange Anaheim Plain Comment
  RSA4829  Croton californicus James Snow 1932-1 s.n. Orange Bryant Ranch, near Long Beach. Station #1. Plant #3. Comment
  RSA697576  Croton californicus Kenneth Beard s.n. Orange East of S. A. River on Edinger Road 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
  UCD141986  Croton californicus G. L. Webster 1966-12-11 7480 Orange Dana Point. Comment
  RSA734902  Croton setiger A. C. Sanders 2008-5-28 35439 Orange Lomas de Santiago, Bee Flat at mouth of Limestone Canyon. 264 Comment
  RSA0031381  Cryptantha clevelandii Fred M. Roberts 2008-4-8 6852 Orange Lomas de Santiago: Loma Ridge, Upper Dripping Springs Cyn., 1.0 km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  RSA0073640  Cryptantha clevelandii Fred M. Roberts 2010-3-12 7179 Orange Southeast Coast: DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c.a. 150 meters SE Interpretive Center. 50 Comment
  RSA641  Cryptantha clevelandii J. T. Howell 1927-7-22 460 Orange North of Botany Garden, Rancho Santa Ana. 274 Comment
  UCR267187  Cryptantha clevelandii Fred M. Roberts 2010-3-12 7179 Orange Southeast Coast, DANA POINT HEADLANDS: Harbor Point Park, South of Green Lantern and west of Dana Point Harbor, c. 150 meters SE Interpretive Center 50 Comment
  POM146229  Cryptantha clevelandii var. florosa F. M. Reed 1926-4-14 5301 Orange Bluffs along sea at Arch Beach. 46 Comment
  RSA0094682  Cryptantha clevelandii var. florosa G. R. Campbell 1951-5-30 16096 Orange San Juan Canyon, Ortega Hwy, 4 mi. inside west border of Cleveland National Forest. 152 Comment
  RSA0094684  Cryptantha clevelandii var. hispidissima C. B. Wolf 1932-3-8 2687 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 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
  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
  UCD119839  Cryptantha intermedia Beecher Crampton 1967-5-23 7957 Orange 4 miles east of Irvine UC - South Coast Field Station. Comment
  UCR191344  Cryptantha intermedia A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34621 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
  UCR241913  Cryptantha intermedia Fred M. Roberts 2012-5-10 7563 Orange Peninsular Ranges; Coastal Foothills, San Joaquin Hills, south fork of Buck Gully, north slope Pelican Hill, 0.6 km N summit Pelican Hill, north of Pelican Hill Drive 183 Comment
  RSA0051392  Cryptantha intermedia var. intermedia Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49663 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA0013970  Cryptantha microstachys Fred M. Roberts 2008-4-8 7169 Orange Lomas de Santiago; Loma Ridge, Upper Dripping Springs Cyn,. 1.0km NE Bee Peak, Irvine Ranch Conservancy. 458 Comment
  RSA542659  Cryptantha microstachys Fred M. Roberts, K. Keane 1988-5-26 4005 Orange Rancho Mission Viejo: tributary to Trampas canyon, along Christianitos rd., 2.4 km ESE Viejo Survey mark. 128 Comment
  RSA749491  Cryptantha microstachys Fred M. Roberts, Linda Farley 2008-3-28 6825 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  SEINET7073423  Cryptantha muricata A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  RSA0079566  Cryptantha muricata var. jonesii Fred M. Roberts, Carol A. Roberts, Kirsten Winter 1995-5-6 4939 Orange Santa Ana Mountains: Ridge between Hot Springs Canyon and Viejo Canyon, San Juan Trail, 3.4 km WNW lower San Juan Picnic Ground. 546 Comment
  MACF020320  Cupressus Richard J. Ramirez 1974-11-3 D 3 Orange Collected about 8 mi. inland on Saddleback Canyon Rd., from Tucker Wildlife Sanctuary. Comment
  CAS-BOT-BC80571  Cupressus forbesii James R. Shevock 1976-10-28 5347 Orange off of Sierra Peak, FS road 3S04 - Santa Ana Mountains, Cleveland National Forest 883 Comment
  RSA352379  Cupressus forbesii C. B. Wolf 1935-1-2 6278 Orange Slopes of Sierra Peak, west of Claymine Canyon, along road to Peak. 670 Comment
  RSA730999  Cupressus forbesii Fred M. Roberts, B. Allen, D. Olsen 2007-1-19 6502 Orange Beek s Place along Main Divide Rd., 4.1 km NW Pleasant Peak. 852 Comment
  CAS-BOT-BC80574  Cupressus forbesii Rimo Bacigalupi 1935-6-22 2354 Orange Head of Clay Mine Canyon on drainage of Santa Ana River, northern end of Santa Ana Mts. Comment
  RSA0020321  Cupressus forbesii T. Keeney 1977-10-27 1100 Orange NW slope of Sierra Peak. Near Gypsum Canyon. 61 Comment
  SEINET10531083  Cupressus forbesii Carl B. Wolf 1935-1-2 Wolf 2319 Orange Santa Ana Mts. Slopes of Sierra Peak, W of Claymine Canyon along Road to peak. Upper Sonoran:- Adenostoma, Cypress. Open N.W. slope. Reddish sandtone. 670 Comment
  NY16670  Cupressus guadalupensis var. forbesii C. B. Wolf 1935-1-2 6279 Orange This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR197796  Cuscuta A. C. Sanders, Fred M. Roberts 2008-9-18 36097 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 0.5-0.8 miles above the highway bridge 300 Comment
  RSA0014076  Cuscuta californica Fred M. Roberts 2008-5-27 7004 Orange Lomas de Santiago: Loma Ridge, Hicks Cyn., c.a. 0.2km beyond Hicks Cyn., Gate, 2.2km WNW Bee Peak, Irvine Ranch conservancy 213 Comment
  RSA409708  Cuscuta californica George Price 1967-5-17 s.n. Orange Irvine Lake Comment
  POM201678  Cuscuta ceanothi L. M. Booth 826 Orange Santa Ana Canyon. Comment
  RSA201912  Cuscuta salina L. M. Booth 1933-10 s.n. Orange Newport Comment
  RSA70998  Cuscuta salina F. W. Peirson 1924-8-29 5080 Orange 2.5 miles from Balboa on road inland along creek. Comment
  RSA759535  Cuscuta subinclusa Robt. Allen 2006-12-13 s.n. Orange Trabuco Canyon. About 2 mi. up from Live Oak Road, SW of Trabuco Truck Trail, in creekbed near base of north-facing hillside 395 Comment
  JEPS59789  Cycloloma atriplicifolium Lawrence M. Booth 1932-8-5 Orange near Huntington Beach (Santa Ana River Channel, 3 mi from ocean); Santa Ana River Channel, near Huntington Beach Comment
  JEPS59790  Cycloloma atriplicifolium Lawrence M. Booth 1932-7-30 1343 Orange near Huntington Beach; Santa Ana River channel Comment
  POM48696  Cycloloma atriplicifolium I. M. Johnston 1924-8-29 s.n. Orange Santa Ana River bed, between Aneheim and Santa Ana Comment
  RSA65888  Cycloloma atriplicifolium F. W. Peirson 1924-8-29 5061 Orange Santa Ana River, bridge near Santa Ana. Comment
  RSA759248  Cyclospermum leptophyllum Robt. Allen 2008-4-9 s.n. Orange Irvine Valley College, N of N entrance to Student Services building. 45 Comment
  CAS-BOT-BC299752  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  CAS-BOT-BC299753  Cynara cardunculus Carl B. Wolf 1936-7-8 8100 Orange Western end of Newport Bay, Coast Highway 9 Comment
  RSA30240  Cynara cardunculus subsp. flavescens Elisabeth Norland 1942-8-12 11296 Orange 2 miles SW of Costa Mesa near jct of 17th Street and Hwy 101. Comment
  CAS-BOT-BC190298  Cynodon dactylon Ira L. Wiggins 1965-11-6 20353 Orange Kramer Oil Estates, near well No. 14, near end of county road to Rancho Santa Ana. Comment
  RSA184113  Cynodon dactylon I. L. Wiggins 1965-11-6 20353 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA678728  Cynodon dactylon Fred M. Roberts, Michelle Lee 2001-6-29 5506 Orange Rancho Mission Veijo: Chiquita Ridge, 0.3km WnW Rancgo Macian Survey Marker. PCR Vernal Pool 4., (33 33'11N,117 37' 18 W; T7S R7W, NW 1/4sec 21) 226 Comment
  UCR157711  Cyperus Adrian Wolf 1998-5-15 270 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  SBBG128577  Cyperus eragrostis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49572 Orange San Juan Cyn at Lower Picnic Camp, just below Ortega Hwy (74); Santa Ana Mtns Comment
  UCR247876  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
  RSA594874  Cyperus erythrorhizos Fred M. Roberts, W. R. Ferren 1991-12-1 4829 Orange San Joaquin Hills: Laguna Canyon, Upper Laguna Lake, 3.5 kilometers N junction El Toro Road, 4.9 kilometers ENE Signal Peak. 113 Comment
  RSA599641  Cyperus esculentus Fred M. Roberts, P. Barrett, G. Bastillos 1995-7-25 4970 -B Orange Santa Ana Mountains: San Juan Canyon along San Juan Creek, San Juan Hot Springs, 0.8 kilometer SSW Juan Rancho Survey Mark. 214 Comment
  RSA708531  Cyperus involucratus Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6108 Orange Caspers Wilderness Park, San Juan Cyn., Old San Juan Hot Springs, c.a. 0.4km SW San Juan Ranger Station, north of SR 74. 214 Comment
  RSA5915  Cyperus laevigatus Carl B. Wolf 1932-7-2 3812 Orange Carbon Canyon, 1/8 mile below La Vida Springs [La Vida Mineral Springs]. 21 Comment
  CAS-BOT-BC538088  Cyrtomium falcatum R. E. Riefner, Jr. 2012-2-2 12 -19 Orange City of Dana Point, cliff and rocky intertidal area N 0.2 mi of Salt Creek lagoon 8 Comment
  RSA725794  Cyrtomium falcatum R. E. Riefner 2006-9-5 06 -417 Orange Southern Coast: Corona del Mar, Ocean Blvd. Near Iris Ave. 11 Comment
  SD234213  Cyrtomium falcatum R. E. Riefner Jr. 2006-9-5 06 417 Orange Southern Coast Corona del Mar, Ocean Blvd., near Iris Ave. (Laguna BeaCH 7.5'q). 10 Comment
  JEPS12207  Datura stramonium Lawrence M. Booth 1932-7-30 1345 Orange near Newport Beach (Santa Ana River Basin); , near Newport Beach Comment
  RSA696  Datura stramonium J. T. Howell 1927-7-27 494 Orange Near ranch, Rancho Santa Ana 152 Comment
  RSA734974  Datura wrightii A. C. Sanders, Fred M. Roberts 2008-6-17 35465 Orange Lomas de Santiago, Agustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  UCR16391  Datura wrightii N. J. Moriarty 1973-5-27 730527- 01 Orange San Clemente State Beach 1.2 mi south of the end of Ave Califia in the sand below the railroad tracks. Comment
  UCR16393  Datura wrightii Kenneth Hibberd 1966-4-30 660430- 4 Orange 0.5 mi S on Mohler Rd. in the Santa Ana Canyon, 5 mi west of Riverside Co. 244 Comment
  IRVC19407  Daucus carota R. L. Allen 1983-2-8 A 614 Orange Newport Beach: 1935 Highland Street at Kathleen Street. Southern Coastal Comment
  UCD127423  Daucus pusillus B. Pitzer 1996-4-30 2780 Orange Upper Newport Bay: California Department of Fish and Game Ecological Reserve off (west of) Jamboree Road. 6 Comment
  RSA761936  Daucus pusillus Robt. Allen 2005-4-30 12497 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  CHSC26108  Deinandra fasciculata James Henrickson 1970-7-24 5001 Orange 3 miles NW of Huntington Beach near sandy 'Rabbit' Island in Bolsa Chica Salt Marsh near Inner Bolsa Bay. Roadside. 0 Comment
  CAS-BOT-BC299328  Deinandra fasciculata Palmer Stockwell 1934-5-12 60 Orange Laguna Beach Comment
  SD5619  Deinandra fasciculata Ruth B. Randall 1926-1 123 Orange Comment
  RSA0037248  Deinandra paniculata Sandy Leatherman, Melissa Riedel-Lehrke 2013-7-1 2013 -9 Orange Coastal Plains & Basins; South Coastal Plain region: South Orange County, 1.4 miles east of the intersection of Antonio Parkway and Crown Valley Parkway, in the undeveloped foothills. 146 Comment
  RSA724056  Deinandra paniculata R. E. Riefner 2001-7-28 01 -375 Orange City of Laguna Beach, vicinity of Moulton Meadows Park. Comment
  RSA350609  Delphinium maritimum Anstruther Davidson 1910-4-20 2471 Orange Corona Del Mar. Comment
  CAS-BOT-BC121419  Delphinium parryi subsp. parryi L. R. Abrams 1901-6-1 1818 Orange Santa Ana Mts Comment
  UCR18228  Delphinium patens Richard B. Flagler 1975-5-2 s.n. Orange Silvarado Canyon Comment
  CAS-BOT-BC82948  Dendromecon rigida P. C. Everett 1935-6-19 7233 Orange Santa Ana Mountains, Main Divide Motorway 7 miles from summit Santiago Peak (Southeast). 1280 Comment
  UCR252203  Dendromecon rigida Amanda C. Swanson 2013-4-21 25 Orange Peninsular Range; Santa Ana Mtns., hiking trail across from Tucker Wildlife Sanctuary, less than 0.1 mi. from trailhead 434 Comment
  RSA5311  Dendromecon rigida subsp. rigida B. D. Stark 1933-1-5 4506 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  RSA5408  Dendromecon rigida subsp. rigida Carl B. Wolf 1932-12-19 4442 Orange Main divide of Santa Ana Mts. between Sierra Peak and Skyline Drive. 762 Comment
  RSA697422  Dentaria integrifolia R. H. McArthur 1934-3-3 62 Orange Forks of Laguna Canyon. Comment
  RSA0065534  Dentaria tenella Marion P. Harthill 1972-1-25 s.n. Orange San Juan Watershed. Comment
  RSA0011989  Descurainia pinnata O. F. Clarke 2004-4-5 s.n. Orange Newport Back Bay 3 Comment
  POM202601  Descurainia pinnata subsp. halictorum L. M. Booth 1932-5-12 1047 Orange Newport Bay. Comment
  UCR215308  Descurainia pinnata subsp. halictorum Fred M. Roberts, Eliza L. Maher 2008-3-26 6797 Orange South Coast, Dana Point; Dana Point Headlands, Center for Natural Lands Mgmt. Preserve near Strands Road gate, 0.8 km west of Marine Institute, Dana Point Harbor 71 Comment
  UCR140805  Dichelostemma capitatum Robin G. Marushia 2004-4-16 004 Orange Southern Coast, El Moro Canyon, Crystal Cove State Park, Laguna Beach; grassy ridge southwest of No Name Ridge road in park, downhill from pullout and below closed road to park entrance 244 Comment
  RSA698093  Dichelostemma capitatum subsp. capitatum Calvert Norland 1929-3-4 39 Orange Orange Co. Park 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
  UCR193832  Dichondra micrantha A. C. Sanders 2008-7-3 35713 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon near mouth of Limestone Cyn., at Agustine Staging Area 260 Comment
  RSA702763  Dichondra occidentalis Scott D. White, Michael Honer 2004-5-17 10389 Orange South Coast: City of Laguna Niguel. Ridges and open slopes directly north of the intersection of Crown Valley Parkway and Pacific Island Dr. 61 Comment
  CAS-BOT-BC209073  Digitaria sanguinalis Ira L. Wiggins 1965-9-25 20252 Orange Curbway, S side of Dorothy Lane near interesection with Kroeger Avenue, Fullerton Comment
  SD245206  Digitaria sanguinalis R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49611 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  RSA0029994  Dimorphotheca fruticosa R. E. Riefner Jr. 2011-7-1 11 -79 Orange City of Newport Beach, beach area W. of Shorecliff Road and Cameo Shores Road. 2 Comment
  UCR140932  Dinebra retroflexa O. F. Clarke, D. Svehla 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  RSA699271  Diosma ericoides Ruth Greenwald, Virginia Pritchard 1938-05 s.n. Orange Santa Ana. Comment
  SD98896  Diplachne fusca var. uninervia Darley Howe 1976-7-12 4907 Orange Along Santa Ana River in Huntington Beach Comment
  SBBG6917  Diplacus X australis M. Van Rensselaer 1945-5-25 1883 Orange Laguna Cyn Comment
  SJSU1768  Diplacus aurantiacus G. B. Youngberg 1956-3-27 185 Orange Irvine Park c. 8 mi E of Orange 259 Comment
  SEINET219137  Diplacus brevipes T. Mosquin, P. H. Raven 1962-1 4277 Orange Silverado Canyon; Santa Ana Mts 701 Comment
  CAS-BOT-BC152262  Diplacus clevelandii P. C. Everett 1936-8-28 8233 Orange Santa Ana Mts., Main Divide Motorway, head of Trabuco Canyon 1158 Comment
  CAS-BOT-BC152263  Diplacus clevelandii E. K. Balls 1958-6-27 23279 Orange Road to Santiago Peak from Silverado Canyon, 3.8 mi. from gate. 975 Comment
  CAS-BOT-BC152058  Diplacus longiflorus John Thomas Howell 1927-6-1 2401 Orange Southern Puente Hills at teh Santa Ana Canyon 152 Comment
  SD72857  Diplacus longiflorus F. R. Fosberg 1931-6-19 S 5128 Orange Carbon Canyon, Puente Hills, canyon wall Comment
  RSA0045517  Diplacus longiflorus L. C. Hall 1934-4-29 s.n. Orange Trabuco Canyon. PR8. Comment
  SD42976  Diplacus puniceus Ethel B. Higgins 1948-3-1 Orange Near San Juan Camp Comment
  RSA0045519  Diplacus puniceus Minor Warne 1934-3-3 s.n. Orange Laguna Canyon Forks. CP5. Comment
  CDA24808  Diplotaxis tenuifolia R. K. Bishop Nov 1937 Orange 12 miles northwest of Orange on railroad right-of-way. 0 Comment
  POM21171  Diplotaxis tenuifolia Helen D. Geis 1902-12-12 s.n. Orange Santa Ana. Comment
  RSA66079  Diplotaxis tenuifolia W. L. Jepson 1929-8-29 s.n. Orange Santa Ana. Comment
  RSA678747  Distichlis littoralis Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1102 Orange Seal Beach National Wildlife Refuge: Seal Beach U. S. Naval Weapons Station, across access road from Nature Center (Bldg 226). 3 Comment
  CAS-BOT-BC208626  Distichlis spicata Bernard G. G. de Retz 1961-5-16 47611 Orange Huntington Beach Comment
  RSA699993  Dodecatheon clevelandii L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  CAS-BOT-BC41692  Draba cuneifolia var. sonorae Helen D. Geis 1902-1-1 529 Orange Santiago Creek. Comment
  IRVC124  Dryopteris arguta A. S. Boughey, P. Pembrook 1965-6-15 1056 Orange Santa Ana Mountains; Saddleback Mtn., Cleveland National Forest. Peninsular Ranges Comment
  RSA663165  Dryopteris arguta R. E. Riefner 2000-3-26 20 -149 Orange NCCP North Ranch Policy Plan Area. Fremont Canyon: N. of major stream fork along W. channel drainage 335 Comment
  SD144155  Dryopteris arguta Scott D. White 1996-12-20 4631 Orange Above Modjeska Canyon: proposed water tank site. 420 Comment
  UC2030238  Dryopteris arguta J. Metzgar with K. Pryer and M. Windham 2006-4-25 177 Orange Cleveland National Forest: Hot Springs Canyon Comment
  CAS-BOT-BC70836  Dryopteris arguta Carl B. Wolf; E. R. Johnson 1939-3-16 9492 Orange Santa Ana Mts., north side of Pleasant's Peak 1219 Comment
  IRVC21221  Dryopteris arguta Fred M. Roberts 1984-3-9 1248 Orange Wagon Whell Regional Park: cyn 2.9 km NE Median Rancho Survey Mark; 1.6 km NW bench Mark 422. Southern Coastal 165 Comment
  UC905133  Dudleya R. V. Moran 1948-6-23 3097 Orange n-facing cliff near mouth of Aliso Canyon (s of Laguna Beach); ; near mouth of Aliso Canyon, S of Laguna Beach, Orange Co. 7 Comment
  RSA0002519  Dudleya edulis Reid V. Moran 1948-6-23 3097 Orange North-facing cliff near mouth of Aliso Canyn, south of Laguna Beach 8 Comment
  CAS-BOT-BC411401  Dudleya lanceolata P. A. Munz 1919-5-4 2835 Orange Laguna Canyon Comment
  CAS-BOT-BC411405  Dudleya lanceolata P. C. Everett 1935-6-17 7141 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort 457 Comment
  POM201797  Dudleya lanceolata L. M. Booth 1932-6-9 s.n. Orange Newport Bay 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
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Oct 23 2014
  RSA5350  Dudleya lanceolata B. D. Stark 1932-12-9 1674 Orange Dana Point Comment
  SEINET3089229 Image available Dudleya lanceolata Cesareo Perez 1971-5-18 22 Orange S. Mesa Dr. & Lemon St., Villa Park. Comment
  UC933254  Dudleya lanceolata Reid Moran 1948-6-23 3093 Orange Arch Beach Comment
  CAS-BOT-BC109672  Dudleya multicaulis John Thomas Howell 1927-6-1 2409 Orange Southern Puente Hills in the Santa Ana Canon [Canyon]. 152 Comment
  UCR203895  Dudleya multicaulis R. E. Riefner Jr. 2008-3-5 08- 30 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, east Fremont Canyon, lower Lakeview SCE Road 274 Comment
  RSA13068  Dudleya pulverulenta P. C. Everett 1935-7-5 2361 Orange Rancho Santa Ana, Santa Ana Canyon hill N of Grapefruit orchard 152 Comment
  UCR222628  Dudleya pulverulenta T. B. Salvato 2010-10-27 5103 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
  CAS-BOT-BC109745  Dudleya stolonifera K. Nakai 1978-4-19 359 Orange Aliso Canyon, ca. 300 m east of California Highway 1. 10 Comment
  SD130042  Dudleya stolonifera Reid Moran 1977-6-13 24238 Orange North-facing cliff near mouth of Aliso Canyon. 10 Comment
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Nov 27 2014
  UC905134  Dudleya stolonifera R. V. Moran 1949-7-2 3286 Orange 1.5 mi above canyon mouth (1.7 mi below Toro Rd junction); Laguna Canyon Comment
  LA202506  Dudleya stolonifera Kei Nakai; 1978-4-19 359 Orange Aliso Canyon, ca. 300 m. E of Calif. Hwy 1 10.0 Comment
  UC1015403  Dudleya viscida Reid Moran 1931-1 5246 Orange San Juan Hot Springs Comment
  UC718273  Dudleya viscida Carl B. Wolf 1936-6-17 7948 Orange 0.6 mi below San Juan Hot Springs (along Ortega Hwy); Santa Ana Mtns 182 Comment
  UCR281507  Dysphania pumilio Mitch Provance, Jeremiah George 2017-3-20 317- 103 Orange West Coyote Hills, Fullerton, vicinity of Utility Access Road W of Gilbert Street and N of Rosecrans Ave., on land previously occupied by oil fields. 131 Comment
  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-BC197178  Echinochloa crus-galli John Thomas Howell 1928-10-29 3188 Orange Along the highway near Cypress 30 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
  RSA234531  Echinochloa crus-galli James Henrickson 1970-7-25 5088 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 1 Comment
  RSA6068  Echinochloa crus-galli C. B. Wolf 1932-6-13 3720 Orange Fullerton, Rose Drive 53 Comment
  RSA539370  Echinodorus berteroi David E. Bramlet 1990-10-17 2063 -2 Orange Newport Beach: Delhi Channel at the intersection of Irvine Ave. and Mesa Drive just west of Newport Beach Golf Course. 6 Comment
  RSA794758  Echinodorus berteroi Justin M. Wood, Dustin M. Ray 2010-10-1 2775 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
  UCSB57135  Echinodorus berteroi Marsh, G. 1975-7-28 Orange Huntington Beach; east Garden Grove-Wintersburg Flood Control Channel (No.C05); just N of Warner St. bridge crossing Comment
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Aug 18 2011
  SD142746  Echium fastuosum A. C. Sanders 1990-10-6 10183 Orange Newport Bay, North Star County Beach area on the southwest end of the bay 0 Comment
  RSA151172  Eclipta prostrata Peter H. Raven 1961-10-15 16849 Orange Anaheim: Santa Ana River Bed at Anaheim Street crossing. 61 Comment
  RSA718968  Eclipta prostrata Fred M. Roberts, Robert L. Allen 2006-10-8 6412 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
  UCR266405  Ehrharta erecta D. E. Bramlet 2010-3-3 s.n. Orange 1691 Mesa Dr., Newport Beach 16 Comment
  RSA5918  Eichhornia crassipes E. R. Johnson 1932-6-29 3808 Orange Floating in water, Santa Ana River, SW of Ranch Houses, Rancho Santa Ana. 122 Comment
  UC1543115  Elatine brachysperma Donald G. Nelson 1935-4-15 302 Orange on road from Garden Grove to Costa Mesa converging near Costa Mesa (toward main highway from Santa Ana) Comment
  UC1784198  Eleocharis coloradoensis Donald G. Nelson 1935-4-15 297 Orange on road from Garden Grove to Costa Mesa, converging near Costa Mesa, near the main highway from Santa Ana Comment
  CAS-BOT-BC113330  Eleocharis montevidensis Helen D. Geis 1902-4-1 507 Orange Santa Ana Comment
  CAS-BOT-BC168149  Eleocharis montevidensis A. C. Sanders; Fred M. Roberts; Michelle Balk 2006-7-20 33003 Orange Peninsular Range; Santa Ana Mtns.: San Juan Canyon, from Lower San Juan Picnic Area to ca. 1 mile downstream, parallel to Hwy 74 and near Riverside Co. line 396 Comment
  RSA603303  Eleocharis montevidensis Scott D. White, B. Leatherman 1997-1-12 5332 Orange East of San Juan Capistrano: San Juan Creek between Highway 74 bridge and Mission Vieja site, i.e. ca. 2 to 4 miles E of I-15 / Highway 74 junction. 46 Comment
  UCR174181  Eleocharis montevidensis A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33048 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
  RSA573297  Eleocharis radicans Steve Boyd, Timothy S. Ross 1994-9-14 8354 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. 305 Comment
  SD136984  Eleocharis radicans Steve Boyd, Tim Ross 1994-9-14 8354 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon just downstream of Lucas Canyon Trail crossing. (IPB 10/07) 305 Comment
  UC971749  Eleocharis radicans L. M. Booth 1932-7-19 1286 Orange Bolsas Creek Comment
  RSA697744  Ellisia chrysanthemifolia R. H. McArthur 1934-4-7 s.n. Orange Ladd Canyon. Comment
  RSA0011627  Elymus glaucus Rankin s.n. Orange Silverado Comment
  CAS-BOT-BC206791  Elymus glaucus subsp. glaucus Le Roy Abrams 1901-6-1 1822 Orange Santiago Pk. Comment
  RSA797826  Elymus glaucus subsp. glaucus R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49815 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR150908  Elymus glaucus subsp. glaucus Valerie Soza, LeRoy Gross 1999-6-10 526 Orange Santa Ana Mountains, Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road 1555 Comment
  RSA548858  Elymus multisetus Fred M. Roberts, Gordon Marsh 1986-6-6 2986 Orange Black Star Canyon, Black Star Canyon Rd., 2.7 km by road below summit; 3.6 km S Sierra Peak., UTM 3741900m N, 439600mE. 646 Comment
  RSA552942  Emmenanthe penduliflora Fred M. Roberts, Carol A. Roberts 1989-4-20 4299 Orange Santa Ana Mtns.: upper Lion Canyon along San Juan Trail just south of Blue Jay Campground, 2.5km SE Los Pinos Peak. 980 Comment
  RSA731987  Emmenanthe penduliflora A. C. Sanders, Fred M. Roberts 2008-4-8 34776 Orange Peninsular Range: Lomas de Santiago, SSE os f Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon. 475 Comment
  RSA0127347  Emmenanthe penduliflora var. penduliflora Fred M. Roberts 2016-4-29 8050 Orange Lomas de Santiago: north of Santiago Canyon Road, southwest slope of hill marked 1332 on topo maps, just west of Irvine Lake, 1.6 km S Irvine Lake dam spillway and 0.8 km NW Irvine Lake Park. 335 Comment
  CAS-BOT-BC131231  Encelia californica R. K. Brummitt 1998-5-23 19990 Orange Newport Beach, by marina 10 Comment
  HSC5477  Encelia californica C. L. Hitchcock, C. V. Muhlick 1964-3-17 23069 Orange 8 mi. E of Yorba Linda, Santa Ana Canyon. Comment
  LA202459  Encelia californica Lawrence M. Booth; 1932-5-12 1029 Orange Newport Bay Comment
  POM356656  Encelia californica M. B. Dunkle 1933-4-9 32888 Orange Dana Point. Comment
  POM48553  Encelia californica F. M. Reed 1925-5-14 4985 Orange Aliso Canon. Comment
  UCR192476  Encelia californica A. C. Sanders, Fred M. Roberts 2008-3-25 34544 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  SEINET11859823  Encelia californica J. F. Bright, Wyman, C. 1933-3-5 8012 Orange in Santa Ana foothills Comment
  UC1118064  Encelia californica H. E. Norton 1931-3-1 53 Orange Corona #1 Corona Quadrangle Comment
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Apr 24 2014
  UCR192986  Encelia farinosa A. C. Sanders, Fred M. Roberts 2008-5-6 35215 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon near Irvine Ranch gate and road junction to cement plant 180 Comment
  POM18136  Epilobium canum subsp. canum P. A. Munz 1923-9-7 7764 Orange Santa Ana Mountains, on trail from Trabuco Canyon to Santiago Peak. 1616 Comment
  UCR174018  Epilobium ciliatum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33011 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
  POM48284  Epilobium ciliatum subsp. ciliatum I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  POM6436  Epilobium ciliatum subsp. ciliatum P. A. Munz, L. T. Street, G. Williams 1919-5-4 2680 Orange Laguna Canyon. Comment
  RSA588523  Epilobium ciliatum subsp. ciliatum M. B. Dunkle 1934-6-18 3982 Orange San Juan Canyon; Southern Coastal 305 Comment
  RSA731933  Epilobium ciliatum subsp. watsonii Fred M. Roberts, Sandy Leatherman 2007-11-27 6677 Orange Yorba Linda: drainage channel on east side of Amberdale Dr. ca. 0.3 km S Fairmont Blvd. 118 Comment
  POM210924A  Epipactis gigantea L. M. Booth 1932-6-4 1150 Orange Newport Lagoon. Comment
  UCR175445  Epipactis gigantea Mark A. Elvin, A. C. Sanders 2005-9-2 4495 Orange Peninsular Ranges, Santa Ana Mtns: Mouth of Lion Canyon, just upstream from Lower San Juan Campground 457 Comment
  UCD169806  Epipactis gigantea R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49608 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  UCSB71602  Equisetum laevigatum Marsh, G.; Marsh, K. 1977-11-21 Orange Santa Ana Mtns: S side of Ortega Hwy, 1.2 mi E of San Juan Guard Station, road marker #107. Comment
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Aug 8 2013
  UCD62942  Eragrostis cilianensis Beecher Crampton 1971-6-9 8723 Orange UC South Coast Field Station, east of Irvine. Comment
  RSA730989  Eragrostis mexicana subsp. virescens Fred M. Roberts 2006-11-15 6463 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  RSA798101  Eragrostis mexicana subsp. virescens R. F. Thorne, E. W. Lathrop, Walter Wisura 1977-7-8 49567 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  JEPS52502  Eremocarpus setiger John Thomas Howell 1927-9-24 3108 Orange Rancho Santa Ana Santa Ana Canyon 152 Comment
  RSA697580  Eremocarpus setiger Minor Warne 1934-5-19 s.n. Orange Roadside Forks Trabuco and El Toro Rd. Comment
  CAS-BOT-BC514998  Eriastrum sapphirinum subsp. dasyanthum John Thomas Howell 1927-6-1 2408 Orange Southern Puente Hills in the Santa Ana Canyon 152 Comment
  CAS-BOT-BC299499  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 2943 Orange Rancho Santa Ana, Santa Ana Canyon 207 Comment
  CAS-BOT-BC299502  Ericameria palmeri var. pachylepis Carl B. Wolf 1931-10-30 1363 Orange North side of Santa Ana Canyon 207 Comment
  RSA16676  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA29367  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA54171  Ericameria palmeri var. pachylepis C. B. Wolf 1931-10-30 2504 Orange Rancho Santa Ana, Santa Ana Canyon. 207 Comment
  RSA785321  Ericameria palmeri var. pachylepis Dick Newell, Don Millar, Michael Dresser 2010-9-21 034 Orange access road on east side of Laguna Canyon Rd. at Stage Coach, 1.22 miles north of Hwy 73 toll road 111 Comment
  RSA38491  Ericameria parishii Percy C. Everett 1945-11-13 11512 Orange Indian Canyon Truck Trail, Indian Canyon, Santa Ana Mts. 960 Comment
  UCR256886  Ericameria parishii Naomi Fraga, Duncan S. Bell, Sarah J. De Groot 2009-9-11 3157 Orange Peninsular Ranges; Santa Ana Mountains region, Blue Jay Campground 910 Comment
  CHSC30406  Erigeron bonariensis T. B. Devine 1980-4-4 652 Orange Huntington Beach, beside Edinger Ave. ca 1.5 mi. W. of jct. with Bolsa Chica Rd. Roadside between Edinger Ave. and drainage canal just So. of Naval Weapons Station. Comment
  UCR258622  Erigeron bonariensis Fred M. Roberts 2014-7-25 7886 Orange South Coast, SAN JOAQUIN HILLS: Upper Laguna Canyon, Laguna Lake 1 (Upper Laguna Lake), north basin, c.a. 5.1 kn ENE summit Signal Hill. Laguna Coast Wilderness Park 113 Comment
  UCR240103  Erigeron canadensis Dick Newell, Judy Booth 2012-9-26 293 Orange South Coast, Newport Beach, Back Bay Drive at the Salt Dike 3 Comment
  CAS-BOT-BC33457  Erigeron foliosus var. foliosus LeRoy Abrams 1901-6-16 1801 Orange Trabucco Canyon Comment
  RSA455040  Eriodictyon crassifolium Theodore Payne 1909-01 2338 Orange Santa Ana Mt. Comment
  RSA763546  Eriodictyon crassifolium Doris Bowers 1971-4-19 1694 Orange Black Star Canyon Indian Site 762 Comment
  UC171023  Eriodictyon crassifolium H. M. Hall 1913-5-28 9402 Orange Santiago Canyon Comment
  SEINET10697903  Eriodictyon crassifolium var. crassifolium Karen M. Meyer, Andrew Townesmith; Tracy Scott 2007-3-10 Meyer 1 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR230225  Eriodictyon crassifolium var. crassifolium Dick Newell, Ed Hill 2011-3-29 096 Orange Peninsular Range; Santa Ana Mtns., below mouth of Weir Canyon, near Outdoor Education Center 165 Comment
  CAS-BOT-BC241888  Eriogonum cinereum Peter A. Bowler 2003-4-20 s.n. Orange Southern Coastal: UCI Arboretum 15 Comment
  UC718406  Eriogonum elongatum var. elongatum Carl B. Wolf 1933-8-24 5401 Orange summit of Santiago Pk. Santa Ana Mts., Santiago Pk. 1731 Comment
  RSA65146  Eriogonum fasciculatum F. W. Peirson 1924-2-10 4527 Orange Corona Del Mar Comment
  SDSU6522  Eriogonum fasciculatum B. Mastro 1966-9-10 188 Orange 1 mile south of San Clemente on Hwy. 5, near Capistrano. Comment
  SEINET182348  Eriogonum fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport bay Bluff Slopes Comment
  RSA0055085  Eriogonum fasciculatum James R. Shevock 1972-2-18 1338 Orange Newport Back Bay. 10 Comment
  UCR192100  Eriogonum fasciculatum subsp. foliolosum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35286 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  UCR217455  Eriogonum fasciculatum subsp. foliolosum Mark A. Elvin 2003-1-26 2228 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  UC536920  Eriogonum fasciculatum var. fasciculatum Lawrence M. Booth 1932-5-18 1057 Orange Newport Bay Comment
  CAS-BOT-BC249943  Eriogonum fasciculatum var. foliolosum Marcus E. Jones 1926-3-13 s.n. Orange Santa Ana Canon [Canyon] Comment
  RSA215  Eriogonum fasciculatum var. foliolosum J. T. Howell 1927-7-24 475 Orange Santa Ana River bottom near Rancho Santa Ana. 152 Comment
  RSA393428  Eriogonum fasciculatum var. foliolosum N. C. Cooper 1944-6-4 1331 Orange San Juan Canyon. 305 Comment
  RSA791469  Eriogonum fasciculatum var. foliolosum Keith E. Hoffmaster 1928-5-29 313 Orange San Onofre. CP5. Comment
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Nov 19 2013
  RSA7391  Eriogonum fasciculatum var. polifolium Carl B. Wolf 1933-8-24 5402 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA393245  Eriogonum gracile var. gracile J. T. Howell 1927-7-16 2781 Orange Hills on N side of Santa Ana Canyon. 152 Comment
  RSA759257  Eriogonum nudum subsp. pauciflorum Robt. Allen, D. Taylor 2008-7-19 s.n. Orange Upper Silverado Canyon, along Maple Springs Truck Trail, 5.7 road miles up from Maple Springs forest gate, 0.8 road mi down from junction with Main Divide Truck Trail. Near entrance tp short road spur 1313 Comment
  POM18087  Eriogonum nudum var. pauciflorum P. A. Munz 1923-9-7 7750 Orange Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA7476  Eriogonum nudum var. pauciflorum Carl B. Wolf 1933-8-24 5400 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  RSA542469  Eriogonum parvifolium Fred M. Roberts 1988-10-12 4160 Orange San Clemente State Park: ca. 0.3km SE end of Ave. Califia along Santa Fe RR. 3 Comment
  UC534937  Eriogonum parvifolium Susan G. Stokes 1932-8-29 21 Orange Doheney's Palisades, near San Clemente, San Diego Co. Comment
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Oct 21 2009
  CAS-BOT-BC263018  Eriogonum thurberi E. R. Johnson 1933-6-22 4999 Orange Rancho Santa Ana, Santa Ana Canyon river bottom S. of Walnut Grove 121 Comment
  HSC5622  Eriophyllum confertiflorum S. M. Clapp 1966-4-7 45 Orange 3 mi. from Modjeska Canyon towards Siverado Canyon 183 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
  UCR192113  Eriophyllum confertiflorum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35316 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  UCR177409  Erodium botrys Scott D. White, Amanda Duchardt 2003-3-27 8846 Orange Peninsular Ranges/Santa Ana Mtns, Canyon bottom and W-facing slopes above Canada Gobernadora 183 Comment
  UCSB3526  Erodium botrys Wedberg, H. 1958-3-29 Orange 1/2 mile east of coast HWY on McArthur Blvd., Corona del Mar Comment
  UCR103158  Erodium brachycarpum Scott D. White 1997-3-25 4822 Orange University of California, Irvine campus, site of proposed student recreation center, east of main campus. Existing 'Farm School' and grasslands (horse pasture) between California Avenue and Culver Drive. 30 Comment
  RSA653187  Erodium cicutarium David Barrios 1991-5-1 6 Orange Yorba Linda, 1500 ft. northwest of Fairmont Ave and Quail Circle. 366 Comment
  RSA678509  Erodium cicutarium Valerie L. Soza, Kevin B. Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1126 Orange Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  UCD103257  Erodium cicutarium C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mile e. of Brea. Comment
  HSC7249  Erodium moschatum C. L. Hitchcock 1966-3-15 24138 Orange 1/2 mi. E of Brea Comment
  RSA734609  Erodium moschatum Keith E. Hoffmaster 1927-2-19 413 Orange Santa Ana. Comment
  RSA423  Erodium moschatum J. T. Howell 1928-2-7 824 Orange Near the ranch houses, Rancho Santa Ana 152 Comment
  RSA66271  Eschscholzia californica var. peninsularis F. W. Peirson 1923-5-6 3506 Orange Trail to Santiago Peak, Santa Ana Ms., from Trabuco Canyon. 1067 Comment
  RSA542448  Eschscholzia californica var. peninsularis Fred M. Roberts 1989-3-17 4210 Orange Aliso Wood canyon, Regional Park, Also canyon, 3.3 km SSE Moulton Peak. 57 Comment
  UC1608074  Eucalyptus amplifolia Dave Goodward 1987-4-16 5 Orange e. Tustin (1 mi. n.e. of Irvine Blvd./Myford Rd. intersection, Boy Scout Camp in Peters Canyon, Irvine Ranch, s. of tree 4 by 3 trees); Irvine Ranch, Peters Canyon, Boy Scout Camp 121 Comment
  UCR193326  Eucalyptus camaldulensis var. camaldulensis A. C. Sanders, T. B. Salvato 2008-5-13 35370 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
  RSA0012602  Eucalyptus globulus Fred M. Roberts, Karlin G. Marsh 1988-4-25 3928 Orange San Joaquin Hills: Irvine coast, ca 1.3 km SW Pelican Hill. 43 Comment
  SEINET3093482 Image available Eucalyptus tereticornis D. Goodward 1987-4-16 1 Orange Lake Forest, E of Irvine and N of El Toro. Old plantation, now maintained as landscaping. Comment
  UCR162345  Eucalyptus utilis Robert DeRuff 2000-1 523 Orange Southern Coast, Newport Beach, Upper Newport Back Bay. Northerly side of upper Big Canyon c. half way between the beginning of the upper canyon and Jamboree Road 30 Comment
  POM4517  Eucrypta chrysanthemifolia P. A. Munz 1918-5-5 2174 Orange Laguna. Comment
  RSA732086  Eucrypta chrysanthemifolia A. C. Sanders, Fred M. Roberts 2008-3-25 34531 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  SEINET7073420  Eucrypta chrysanthemifolia var. chrysanthemifolia A. G. Vestal 1963-4-24 s.n. Orange La Paz Canyon, Rancho Mission Viejo. Coordinate datum: NAD27. Comment
  JEPS33692  Eulobus californicus John Thomas Howell 1927-6-26 2594 Orange Clyamine Canyon n. Santa Ana Mts. 304 Comment
  UCD142560  Euphorbia albomarginata Ira L. Wiggins 1965-11-5 20323 Orange Near corner of Downling St. and Crowther Ave.; 1/2 mi. S of Placentia. Comment
  UCR26989  Euphorbia crenulata E. W. Lathrop 1966-4-6 6143 Orange Cleveland National Forest, Trabuco Oaks, Trabuco Canyon 396 Comment
  UCR186135  Euphorbia maculata T. B. Salvato, Katie Kurtz 2006-10-15 1917 Orange South Coast, Irvine, San Diego Creek flood control channel, near Michelson Drive and Harvard Avenue 6 Comment
  CAS-BOT-BC202546  Euphorbia misella Grady L. Webster 1966-12-11 7479 Orange At Dana Point Comment
  CLARK-A1528-2702  Euphorbia misera John C. Roos 1937-9-1 2548 Orange South Laguna Comment
  OBI82199  Euphorbia misera Unknown 2012-10-16 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Latern Streets. 35 Comment
  SBBG128746  Euphorbia misera R. E. Riefner Jr. 2012-10-16 12 -518 Orange City of Dana Point, Dana Point Harbor, 'Bluff Top Trail' located near Camino Capistrano and Violet Lantern Sts 35 Comment
  POM201861  Euphorbia peplus L. M. Booth 1932-7-23 1303 Orange Corona del Mar, Newport Beach. Comment
  RSA734741  Euphorbia peplus L. C. Wheeler 1946-3-6 6173 Orange Newport Bay. Mainland north of east end of Balboa Island. 3 Comment
  RSA734983  Euphorbia peplus A. C. Sanders, T. B. Salvato 2008-5-13 35371 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA697594  Euphorbia peplus James Snow 1929-3-28 s.n. Orange SantaAna Gardens Comment
  RSA0104831  Euphorbia polycarpa var. polycarpa C. Thompson 1965-2-20 s.n. Orange Cameo Shores, Corona Del Mar. Comment
  UCD170890  Euphorbia serpens O. F. Clarke 2004-8-23 s.n. Orange Santa Ana River Valley, Yorba Linda, Yorba Regional Park, Santa Ana River bank near intersection of E. La Palma Ave. and Fairmont Blvd. 91 Comment
  RSA797436  Euphorbia serpillifolia Keith E. Hoffmaster 1933-6-19 s.n. Orange Santa Ana. Comment
  RSA431  Euphorbia spathulata J. T. Howell 1928-4-15 923 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA70544  Euphorbia spathulata F. W. Peirson 1922-5-18 3060 Orange Santa Ana River. 122 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
  RSA392120  Eustoma exaltatum Theodore Payne 1925-08 s.n. Orange 9 miles E of Florentia, Santa Ana river. Comment
  UCR192227  Festuca microstachys A. C. Sanders, Fred M. Roberts 2008-5-6 35259 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
  UCR207527  Festuca microstachys O. F. Clarke 2006-5-6 s.n. Orange Peninsular Range; Santa Ana Mtns., Coal Canyon 305 Comment
  RSA0073644  Festuca octoflora var. octoflora Fred M. Roberts, Lee Ann Caranza, Eliza Maher 2009-4-7 7145 Orange South Coast Region: DANA POINT HEADLANDS: Dana Point CNLM Preserve, 0.8 km WNW Dana Point Marine Institute at Dana Point Harbor. 50 Comment
  CAS-BOT-BC474740  Ficus carica R. E. Riefner, Jr. 2015-8-29 15 -370 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco 363 Comment
  UCR241042  Ficus carica Robert DeRuff 2009-1 455 Orange South Coast, Upper Newport Bay, above Back Bay Dr. at Eastbluff North 7 Comment
  CAS-BOT-BC502072  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -360 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., S of Fourth Ave. 41 Comment
  CAS-BOT-BC502073  Ficus microcarpa R. E. Riefner, Jr. 2015-8-27 15 -366 Orange City of Newport Beach, Corona del Mar, long Marguerite Ave., near Seaview Ave. 30 Comment
  UC2046890  Ficus microcarpa R. E. Riefner Jr. 2015-8-29 15 -368 Orange City of Rancho Santa Margarita, Trabuco Marketplace, Rancho Santa Margarita Blvd. at Plano Trabuco. Comment
  CAS-BOT-BC474735  Ficus rubiginosa R. E. Riefner, Jr. 2015-8-27 15 -356 Orange City of Laguna Beach, S side of Beach St. E of Broadway Ave (Hwy 133) 7 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
  IRVC25411  Filago californica Fred M. Roberts, Wayne Ferren 1987-4-8 3360 Orange Upper Newport Back Bay, west side, North Star Beach, 0.8km N Coney Island, Newport Beach 0 Comment
  RSA743373  Filago californica Fred M. Roberts 2008-4-9 6853 Orange Dana Point: Dana Point Headlands, CNLM Preserve near Outlook 2, 0.7 km W Marine Institute (Dana Point Harbor). 52 Comment
  UCR191334  Filago californica A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34649 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
  RSA789585  Filago gallica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49657 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  UCR106279  Filago gallica B. G. Pitzer, M. Georgiady 1997-4-5 3087 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  CHSC35808  Foeniculum vulgare James Henrickson 1972-10-21 8053 Orange Eastern Anaheim, 2 blocks E. of Imperial Hwy. Along La Palma Ave., just N. of Santa Ana River. 60 Comment
  IRVC3699  Foeniculum vulgare L. McCabe 1965-5-8 Orange Corona del Mar]: Corona Highlands. [Newport Beach Comment
  IRVC26714  Fouquieria diguetii Mark A. Elvin, Jenny Liou, Jill Carpenter, Josephine Nguyen 2004-3-8 3155 Orange UCI Arboretum Southern Coastal 15 Comment
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Aug 18 2009
  RSA699264  Fragaria John Murphy 1938-6-6 s.n. Orange Birch Park Comment
  CAS-BOT-BC63070  Frangula californica subsp. californica P. C. Everett 1935-6-17 7137 Orange Santa Ana Mts., Coldwater Canyon, 1/2 mi. above Glen Ivy Resort. 457 Comment
  SBBG92712  Frangula californica subsp. californica R. Moran 1975-7-18 22598 Orange near Yaeger Mine, upper Trabuco Cyn 725 Comment
  SD120877  Frangula californica subsp. tomentella Reid Moran 1975-7-18 22600 Orange slope, upper Trabuco Canyon, Santa Ana Mountains 700 Comment
  RSA231136  Frankenia grandifolia Michael Ward 1970-8-22 V- 7 Orange 4 miles South of Seal Beach, NE of PCH amd Bolsa Chica State Park at Bolsa Chica Salt Marsh. 0 Comment
  RSA391398  Frankenia grandifolia Albert J. Perkins 1923-6-28 s.n. Orange Laguna Beach. Comment
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Jul 15 2013
  RSA80981  Frankenia grandifolia var. campestris Raymond J. Dobbs 1924-7-3 5391 Orange Sea bluff at Laguna Beach Comment
  CAS-BOT-BC223805  Frankenia salina Frank W. Peirson 1924-5-31 4659 Orange Laguna Canon [Canyon] Comment
  IRVC15189  Frankenia salina Helen Smith 1975-4-21 s.n. Orange Upper Newport Bay; near opening of Delhi Channel. Southern Coastal Comment
  IRVC22882  Frankenia salina Fred M. Roberts 1985-6-12 1891 Orange Laguna Niguel: Alicia Pkwy, 2.1km by road SW La Paz Rd., 1.0km W Sulphur Creek Reservoir. Southern Coastal 67 Comment
  UC1494288  Frankenia salina Molly Whalen and Liz Evans 1978-6-2 510 Orange near Bolsa Chica Visitors Center (just off Hwy 1) Comment
  RSA725530  Fraxinus uhdei Fred M. Roberts 2007-9-11 6574 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA0041476  Fraxinus velutina var. coriacea Fred M. Roberts, Carol A. Roberts 1988-7-5 4108 Orange Santa Ana Mts: San Juan Canyon, 0.4 km SW Lower San Juan Picnic Ground. 410 Comment
  UCR192218  Fritillaria biflora A. C. Sanders, Fred M. Roberts 2008-5-6 35270 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Limestone Canyon, 2.9 mi. NNW of El Toro 379 Comment
  UCR209378  Fritillaria biflora Fred M. Roberts, Linda Farley 2008-3-28 6822 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 457 Comment
  RSA697662  Fumaria officinalis Marie Osborn 1929-3-5 s.n. Orange E. 17th St. Santa Ana. Comment
  RSA737491  Funastrum cynanchoides var. cynanchoides D. E. Bramlet 2008-5-16 4273 Orange Agua Chinon Wash . Site is located 3m north of the access road and 1.1km NE of Hwy 241 229 Comment
  RSA565  Funastrum cynanchoides var. hartwegii J. T. Howell 1927-7-24 469 Orange Claymine Canyon, near Sierra Peak 152 Comment
  UCR281491  Funastrum cynanchoides var. hartwegii Mitch Provance 2017-6-9 617- 99 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  UCR192724  Galinsoga parviflora A. C. Sanders, Fred M. Roberts 2008-5-6 35226 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, lower Hicks Canyon, just above tollway (Hwy 241) crossing on Irvine Haul Rd., near debris basin 216 Comment
  SEINET156171  Galium angustifolium Norman C. Cooper 1944-6-4 1372 Orange San Juan Canyon. 305 Comment
  JEPS7854  Galium angustifolium subsp. angustifolium Alice King 1908-4-18 Orange Santa Ana Mts. Comment
  RSA632422  Galium angustifolium subsp. angustifolium Valerie L. Soza, LeRoy Gross 1999-6-10 519 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off dirt road to summit, off Main Divide Road. 1555 Comment
  RSA7473  Galium angustifolium subsp. angustifolium Carl B. Wolf 1933-8-24 5397 Orange Summit of Santiago Peak, Santa Ana Mountains. 1732 Comment
  SBBG47439  Galium angustifolium subsp. angustifolium N. C. Cooper 1944-6-4 1372 Orange San Juan Cyn 304 Comment
  UC1143122  Galium angustifolium subsp. angustifolium A. Lewis 1934-4-3 379 Orange 2 1/2 mi n Coal Mine; Corona Quadrangle Comment
  UCR11142  Galium aparine S. M. Chambers 1970-5-3 14 Orange Carbon Canyon Road, 2 mi SE of La Vida Mineral Springs Comment
  CDA42118  Galium catalinense Ahlefeld & Pope 1957-4-1 s.n. Orange Irvine Ranch. 0 Comment
  JEPS74654  Galium porrigens Lauramay T. Dempster and G. L. Stebbins 1967-3-21 4351 Orange 1 mi nw Cock's Corners (on road to Modjeska's Home, shallow canyon) Comment
  RSA732278  Galium porrigens A. C. Sanders, Fred M. Roberts 2008-4-22 35042 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
  RSA734343  Galium porrigens A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34632 Orange Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir 366 Comment
  CAS-BOT-BC178505  Garrya flavescens Carl B. Wolf 1933-8-24 5383 Orange Along Main Divide Motorway between Bedford Pk. & Santiago Pk, Santa Ana Mts. Comment
  CHSC39254  Garrya flavescens M. O. Dillon 1977-4-12 Orange Santa Ana Mts., Silverado Canyon. Comment
  UC2042138  Garrya flavescens R. F. Thorne and C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  SD247653  Garrya flavescens subsp. pallida R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49700 Orange Northern Santa Ana Mountains: Sierra Peak. 900 Comment
  IRVC24471  Garrya flavescens var. pallida Fred M. Roberts, R. L. Allen 1986-2-23 2593 Orange Santa Ana Mountains; W of Main Divide Truck Trail; 2.1km E Los Pinos Peak. Peninsular Ranges 1115 Comment
  RSA7396  Garrya flavescens var. pallida Carl B. Wolf 1933-8-24 5383 Orange Along main divide near Bedford Peak. Comment
  UCSB56674  Garrya fremontii Roberts, Fred 1984-2-12 Orange Santa Ana mts; 0.lkm SW Falcon Group Camp; 2.0km ESE Los Pinos Peak 304 Comment
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Apr 27 2020
  RSA586252  Gastridium phleoides R. E. Riefner 1995-10-28 95 -383 Orange San Clemente State Beach Comment
  CDA5170  Gaura drummondii Johnson 1939-8-3 5 Orange Brea. 0 Comment
  RSA581434  Gaura odorata Fred M. Roberts 1989-5-21 4375 Orange Lomas de Santiago: just east of Santiago Canyon Road, ca. 1.8km WSW Santiago Reservoir spillway. 248 Comment
  RSA39481  Gaura parviflora E. L. Paddock 1943-6-8 12730 Orange Whittier Road 1/4 mile west of Puente Street, Brea. Comment
  UCR192636  Geranium carolinianum A. C. Sanders, Fred M. Roberts 2008-4-8 34754 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
  RSA588801  Geranium dissectum Fred M. Roberts 1990-5-7 4597 Orange Rancho Mission Viejo: Ridge south of Blind Canyon, TRW Lease Holding, 4.9 km NE Clemente Survey Marker. 152 Comment
  RSA797017  Geranium incanum var. multifidum R. E. Riefner Jr. 2012-6-30 12 -285 Orange City of Costa Mesa, Talbert Regional Park, general vicinity of Balboa Boulevard and 19th Street. 5 Comment
  RSA734014  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-4-22 35061 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfil on road from H icks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado. 493 Comment
  RSA734815  Gilia angelensis A. C. Sanders, Fred M. Roberts 2008-3-25 34574 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
  SEINET5321189  Gilia angelensis A. G. Vestal, W. P. Vestal 1955-3-24 3460 Orange El Toro; About 5 miles east of El Toro Comment
  RSA470266  Gilia capitata subsp. abrotanifolia M. B. Dunkle 1933-5-30 3579 Orange Santa Ana Canyon. Comment
  UCR119296  Gilia capitata subsp. abrotanifolia R. E. Riefner Jr. 2000-4-27 20- 388 Orange Santa Ana Mountains, North Ranch Policy Plan Area, along dirt road running south from Baker Canyon Road to Silverado Road 335 Comment
  UCR130350  Gloriosa superba A. C. Sanders, Mark A. Elvin 2003-10-12 27330 Orange Southern Coastal Slope, Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  UCR102015  Gnaphalium californicum B. G. Pitzer 1997-3-25 3017 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 Comment
  UCR192082  Gnaphalium californicum A. C. Sanders, Fred M. Roberts, Amber O'Neal, D. E. Bramlet 2008-5-9 35303 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir 340 Comment
  RSA734687  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 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
  RSA750065  Gnaphalium canescens subsp. microcephalum A. C. Sanders, Fred M. Roberts 2008-9-18 36068 Orange Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 320 Comment
  UCR193463  Gnaphalium canescens subsp. microcephalum A. C. Sanders, T. B. Salvato 2008-5-13 35353 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
  IRVC18037  Gnaphalium luteo-album Gordon A. Marsh 1983-8-27 Orange San Joaquin Freshwater Marsh, NE side near pump house; center of road. Irvine Comment
  RSA701689  Gnaphalium luteoalbum Fred M. Roberts, David E. Bramlet 2003-6-6 5899 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  RSA731658  Gnaphalium luteoalbum Fred M. Roberts 2007-10-29 6621 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  JEPS20430  Gnaphalium palustre L. M. Booth 1932-5-24 1086 Orange Newport Bay Comment
  POM49167  Gnaphalium palustre I. M. Johnston 1924-7-10 s.n. Orange Laguna Canyon. Comment
  RSA701690  Gnaphalium palustre Fred M. Roberts, David E. Bramlet 2003-6-6 5898 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, west slopes of Cristianitos Canyon, 0.86 km SSW Gato Gate and 0.39 km W of Cristianitos Road. 149 Comment
  POM48551  Gnaphalium ramosissimum F. M. Reed 1925-5-14 4990 Orange Aliso Canon. Comment
  IRVC29561  Gnaphalium stramineum Mark A. Elvin, P. A. Bowler 2006-5-13 4861 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  UCR100580  Gnaphalium stramineum B. G. Pitzer 1996-4-30 2764 Orange South Coast, Upper Newport Bay, Calif. Dept. Fish & Game Ecological Reserve, off (W of) Jamboree Road 6 Comment
  RSA698231  Godetia bottae G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA603291  Grindelia camporum R. E. Riefner 1997-7-12 97 -232 Orange San Clemente State Beach Comment
  UCR107447  Grindelia camporum B. G. Pitzer, M. Georgiady 1997-4-5 3086 Orange San Joaquin Hills, Crystal Cove State Park, portion across highway on the beach, bluffs immediately above beach and adjacent terraces for southeast end of park. 24 Comment
  UCR242757  Grindelia camporum Fred M. Roberts 2012-5-10 7578 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
  IRVC21315  Grindelia camporum var. bracteosa Fred M. Roberts 1982-7-31 790 Orange 0.3km NNW Clemente Survey Mark; 1.2km NNE Civiv Center, San Clemente 220 Comment
  IRVC4035  Grindelia camporum var. bracteosa A. S. Boughey 1968-7-16 422 Orange road to Signal Peak. San Joaquin Hills Comment
  RSA788907  Grindelia camporum var. bracteosa Fred M. Roberts 2008-6-26 7059 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
  POM359185  Gutierrezia californica F. R. Fosberg 1931-6-21 749 Orange Lower Santiago Canyon. Comment
  CAS-BOT-BC302137  Gutierrezia sarothrae John Thomas Howell 1927-7-28 2866 Orange In hills on n. side of Santa Ana Canon [Canyon] 182 Comment
  UCR24011  Hainardia cylindrica John C. Roos 1941-6-4 s.n. Orange Corona Del Mar Comment
  RSA0066583  Harpagonella palmeri Fred M. Roberts, Tony Bomkamp 1997-3-13 4981 Orange Rancho Mission Viejo: Christianitos Canyon, 4km ESE Viejo Survey Mark. 155 Comment
  UC1118833  Hazardia squarrosa var. grindelioides A. Lewis 1934-4-1 430 Orange Los Pinos Peak Cleveland National Forest, Elsinore Quad., Los Pinos Peak 1219 Comment
  IRVC23186  Hedera canariensis G. Reynolds 1987-7-7 6 Orange Costa Mesa; at corner of Mesa St. and Santa Ana Ave. Southern Coastal Comment
  RSA725521  Hedera helix Fred M. Roberts, Robert L. Allen 2007-9-28 6603 Orange Santa Ana Mtns.: Silverado Cyn., along Silverado Cyn. Rd. at eastern edge of town of Silverado. 347 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
  RSA562726  Hedypnois cretica Steve Boyd 1992-5-20 7462 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
  UC537124  Helenium puberulum Lawrence M. Booth 1932-7-19 1285 Orange Bolsas Marsh 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
  RSA696701  Helianthemum scoparium Anonymous s.n. Orange Modjeska. Comment
  UCSB52881  Helianthemum scoparium Roberts, Fred 1983-4-9 Orange South Laguna: Niguel Hill; 0.8 km. ESE Aliso Peak; 2.7 km. SW Alicia Fire Station 249 Comment
  RSA303453  Helianthemum scoparium var. scoparium Jim Shevock 1971-2-6 642 Orange Mojeska Cyn 274 Comment
  IRVC775  Helianthus annuus I. L. Wiggins 1966-5-18 20662 Orange along Associated Rd. between Yorba Linda Blvd. and Imperial Hwy; roadside fill. Fullerton Comment
  UCSB18113  Helianthus annuus Daniel, Dick 1964-3-28 Orange 0.5 miles S of junction of Santiago Canyon Road and Chapman Street, 4 miles E of Orange 274 Comment
  POM201743  Helianthus annuus subsp. lenticularis L. M. Booth 1932-6-29 1230 Orange Newport Bay. Comment
  UC774875  Helianthus ciliaris E. L. Paddock 1941-8-1 Orange 2 mi e Brea; Graham-Loftus property Comment
  CDA6535  Helianthus ciliaris T. C. Fuller 1962-6-7 8871 Orange Union Oil lease, Deodora Street, 1.2 east of Brea Boulevard, Brea. 0 Comment
  CDA6543  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, north of El Toro, ca. 11 miles southeast of Tustin. 0 Comment
  OBI4714  Helianthus ciliaris T. C. Fuller 1962-6-7 8874 Orange Veeh ranch, N of El Toro, ca 11 mi SE of Tustin Comment
  POM360029  Helianthus ciliaris E. L. Paddock 1942-7-21 11291 Orange Toler Ranch, N. side Ocean Ave., 1/4 mi W of La Mirada Rd. La Habra. Comment
  RSA748268  Helianthus gracilentus A. C. Sanders, Fred M. Roberts 2008-6-17 35513 Orange middle section of Weir Canyon, SSE of Walnut Canyon Reservoir 225 Comment
  SD87639  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5247 Orange Wintersberg Comment
  RSA0016430  Helianthus nuttallii subsp. parishii F. W. Peirson 1924-10-19 5247 Orange Wintersberg Comment
  IRVC783  Helianthus petiolaris subsp. petiolaris B. Leach 1964-3-8 Orange hills. El Toro Comment
  JEPS67987  Heliotropium curassavicum Alice King May 1908 Orange near Santa Ana <R. ?> Newport Comment
  CSUSB741  Heliotropium curassavicum var. oculatum Dave Cerf 1971-5-2 Orange Orange Park Acres. Windes Road. - 1/2 mile from the end of road (southwest). 243 Comment
  RSA232222  Heliotropium curassavicum var. oculatum James Henrickson 1970-7-24 4994 Orange 2 miles NW of Huntington Beach around small freshwater industrial pond at eastern margin of Bolsa Chica Salt Marsh along Huntington Beach Mesa. 0 Comment
  RSA752718  Heliotropium curassavicum var. oculatum Fred M. Roberts 2009-4-21 7157 Orange Dana Point Headlands: southern cliffs, 0.7 km W Marine Institute at Dana Point Harbor. CNLM Dana Point Preserve. 3 Comment
  RSA74877  Heliotropium curassavicum var. oculatum Elroy Robinson 1935-6-28 s.n. Orange San Clemente, along Santa Fe Railway. Comment
  CDA7030  Hemizonia fasciculata E. Dudley 1951-5-1 Orange Costa Mesa. 0 Comment
  IRVC786  Hemizonia fasciculata C. Thompson 1965-5-4 Orange Corona del Mar, Corona Highlands. Newport Beach Comment
  UCR107857  Hemizonia fasciculata Scott D. White, B. Leatherman 1998-1-26 6069 Orange Irvine, Univ. of Calif. Irvine Campus: Site of proposed Research Park. SW of main campus circle, c. halfway between Berkeley Avenue and new freeway (Bonita Cyn.) 37 Comment
  UCR149499  Hemizonia fasciculata Scott D. White, Michael Honer 2004-5-17 10386 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
  POM47592  Hemizonia fasciculata I. M. Johnston 1924-8-29 s.n. Orange 1 mile north of Santa Ana. Comment
  RSA121593  Hemizonia fasciculata A. Lewis 1934-04 s.n. Orange Canada Gubernadora, Corona 579 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
  IRVC25204  Hemizonia parryi subsp. australis Fred M. Roberts 1986-11-4 3199 Orange Anaheim Bay, north of Hog Island, Seal Beach Naval Weapons Station 0 Comment
  NY179278  Hemizonia parryi subsp. australis D. D. Keck 1933-9-29 2537 Orange Seal Beach Comment
  UCR231160  Hemizonia parryi subsp. australis Dick Newell, Don Millar 2011-6-22 191 Orange South Coast, Newport Beach, Delhi Channel near University Drive 5 Comment
  UC537059  Hesperocnide tenella P. A. Munz 1934-3-26 13134 Orange Newport Beach 6 Comment
  RSA542350  Hesperocnide tenella Fred M. Roberts Jr., W. R. Ferren 1987-4-8 3361 Orange Newport Beach: Upper Newport Back Bay, west side, North Star Beach, 0.8 km N Coney Island. 0 Comment
  RSA0072403  Heteromeles arbutifolia Steve D. Boyd, Bart O'Brien 1998-1-13 10071 Orange Santa Ana Mountains: north end of the range, W of Sierra Peak along Main Divide Road (3S04), ca. 0.5 mi from summit of peak near head of Coal canyon. 774 Comment
  RSA658198  Heteromeles arbutifolia T. A. Daubert 1991-5-26 657 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  UCD113321  Heteromeles arbutifolia K. M. Meyer; A. Townesmith and T. Scott 2007-3-10 3 Orange Cleveland National Forest, 0.5 mi. N. Main Divide Rd./NF3S04, off Hwy. 74. Elsinore Mountains, ridge top. 917 Comment
  UCR222859  Heteromeles arbutifolia T. B. Salvato 2010-10-27 5138 Orange South Coast, Dana Point Headlands, Hilltop Park, north of Scenic Dr. and west of Green Lantern St., overlooking Dana Point Harbor 84 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
  CAS-BOT-BC318899  Heterotheca grandiflora Helen D. Geis 1902-1-1 s.n. Orange Unspecified Comment
  RSA0075822  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-5-6 35236 Orange Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 280 Comment
  RSA0075824  Heterotheca grandiflora A. C. Sanders, Fred M. Roberts 2008-7-3 35697 Orange 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. 275 Comment
  SD81198  Heterotheca grandiflora Darley F. Howe 1971-10-25 Orange Near the corner of Brookhurst and Lincoln Avenue, Anaheim. Comment
  UCD133033  Heterotheca grandiflora W. G. Watkins 1936-3-10 s.n. Orange Orange. Comment
  CAS-BOT-BC55403  Hirschfeldia incana John Thomas Howell 1927-7-5 2649 Orange Santa Ana River bottom, Santa Ana Canyon. 152 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
  IRVC19365  Hoita macrostachya R. L. Allen Jul 1977 s.n. Orange Santa Ana Mountains; [San Juan Canyon], Ortega Hwy, road side 111. Peninsular Ranges Comment
  IRVC20011  Hoita macrostachya Gordon A. Marsh, Karlin G. Marsh 1981-7-26 s.n. Orange Cleveland National Forest; Lion Canyon, near mouth. Santa Ana Mountains Comment
  IRVC18680  Hoita orbicularis Karlin G. Marsh 1981-5-1 s.n. Orange Main Divide [Truck] Trail above Maple Springs. Santa Ana Mountains 1341 Comment
  UC592773  Holodiscus discolor P. C. Everett 1935-6-18 7221 Orange Santa Ana Mountains, Summit of Santiago Peak Summit of Santiago Peak; Santa Ana Mountains, Summit of Santiago Peak 1731 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
  RSA542405  Holodiscus discolor var. franciscanus Fred M. Roberts Jr., R. E. Riefner 1988-7-19 4120 Orange Modjeska Peak, west slope, along old abandoned road, 0.2 km west summit 1592 Comment
  POM1305  Hordeum depressum P. A. Munz 1918-5-5 2192 Orange Laguna. Comment
  RSA4806  Hordeum depressum James Snow 1932-1 s.n. Orange Bryant Ranch , near Long Beach, Calif. Station #1, Plant 6 Comment
  RSA587884  Hordeum depressum Fred M. Roberts 1990-5-8 4615 Orange Soquel Canyon, 1.2km NNW Gilman Peak 240 Comment
  UCSB52866  Hordeum depressum Roberts, Fred 1983-4-24 Orange Dana Point Headlands; south of Pacific Coast Hwy, 0.4km W Harbor; 0.7km SSW Richard Henry Dana Sch. 79 Comment
  RSA592063  Hordeum intercedens R. E. Riefner 1996-5-19 96 -94 Orange NW of Cooks Reservoir, City of Dana Point, Dana Hills. 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
  UCR150385  Hordeum intercedens D. E. Bramlet, S. Leatherman 1998-5-11 2614 Orange Coastal Plains & Basins/South Coastal Plain region, Along ridgeline 1.58 km N of Avenida pico and 1.46 km west of Cristianitos Canyon, 1.07 km SE of the Segunda Deshecha access road (Telega Valley Rd.) 226 Comment
  JEPS71234  Hordeum marinum subsp. gussoneanum L. M. Booth 1932-5-12 1013 Orange Newport Bay Comment
  UCR192077  Hordeum murinum A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35278 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA697739  Hordeum murinum Elisabeth Norland 1929-3-16 s.n. Orange Santa Ana Co. Club. Comment
  CAS-BOT-BC289365  Hordeum murinum subsp. glaucum Ira L. Wiggins 1966-3-19 20537 Orange Irvine Ranch, southeast of U.C. Irvine Comment
  CDA22569  Hordeum murinum subsp. leporinum J. B. Anderson 1966-4-16 587 Orange South Coast; Corona Del Mar: Buck Gully, Little Corona Beach Comment
  RSA685926  Hordeum murinum subsp. leporinum Fred M. Roberts 2003-3-27 5625 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
  UCD85922  Hordeum murinum subsp. leporinum A. A. Beetle 1942-4-19 3096 Orange Rt. 101. 2 miles north of Laguna Beach. Comment
  UCSB48126  Hordeum vulgare Roberts, Fred 1981-4-11 Orange Highway 74: 5.2km E San Juan Capistrano, near San Juan Creek crossing 52 Comment
  POM305048  Horkelia cuneata subsp. puberula Henry J. Ramsey 1937-1-9 374 Orange San Juan Canyon 152 Comment
  CAS-BOT-BC55487  Hornungia procumbens Helen D. Geis 1902-3-21 s.n. Orange Balsa Chica. Comment
  UCR231503  Hulsea heterochroma Dick Newell, Judy Booth 2011-6-19 183 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Rd., Cleveland National Forest, above Santiago Canyon 1086 Comment
  POM48470  Hydrocotyle umbellata F. W. Peirson 1924-10-19 5237 Orange Wintersberg Comment
  UCD170481  Hypericum canariense R. E. Riefner 2010-6-9 10- 56 Orange City of San Juan Capistrano, La Novia Ave. at Valle Rd. 45 Comment
  IRVC14741  Hypochaeris glabra A. S. Boughey 1968-4-23 205 Orange Black Star Canyon, .5mi below Hidden Ranch; area burned this winter. Santa Ana Mountains Comment
  RSA743384  Hypochaeris glabra Fred M. Roberts 2008-5-27 7008 Orange Dana Point: Dana Point Headlands, CNLM Preserve near NE Gate, 0.5 km W Marine Institute (Dana Point Harbor). 75 Comment
  JEPS19467  Isocoma menziesii var. menziesii Peter H. Raven 1957-9-28 11368 Orange n limits of Surfside Comment
  CAS-BOT-BC311672  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1902 Orange 2 mi. W. of Laguna Beach Comment
  CAS-BOT-BC311673  Isocoma menziesii var. sedoides David D. Keck 1932-9-30 1901 Orange 2 mi. W. of Laguna Beach 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
  OBI41038  Isocoma menziesii var. vernonioides Melissa Thorme 1983-11-23 18 Orange Southern most housing tract in Corona Del Mar Comment
  POM4695  Isocoma menziesii var. vernonioides D. L. Crawford 1916-8-1 s.n. Orange Beach shore & near hills. Comment
  RSA254943  Isocoma menziesii var. vernonioides C. W. Tilforth 1975-9-6 1049 Orange Northeast shoreline of Upper Bay, Newport Beach. Comment
  RSA264440  Isocoma menziesii var. vernonioides C. W. Tilforth 1976-10-21 1225 Orange Slopes above Santa Ana River Canyon on Rancho Santa Ana. Comment
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Mar 18 2011
  RSA5380  Isocoma menziesii var. vernonioides B. D. Stark 1932-12-30 4459 Orange Rancho Santa Ana, 1/4 mile W of Roundtop. 457 Comment
  RSA573431  Isocoma menziesii var. vernonioides Steve Boyd, Tim Ross 1994-9-14 8344 Orange Southern Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Aliso Canyon. 341 Comment
  RSA890  Isocoma menziesii var. vernonioides J. T. Howell 1927-10-29 785 Orange Bryant Ranch near Long Beach. 15 Comment
  RSA0113507  Isocoma menziesii var. vernonioides Lyman Benson 1945-10-7 11863 Orange Brea Canyon, 2 miles north of Brea. Mt. Range: Hills. 152 Comment
  RSA728657  Isocoma menziesii var. vernonioides R. E. Riefner 2006-10-24 04 -449 Orange City of Costa Mesa; E of Santa Ana River, NW 0.2 mi from Balboa Blvd and 19th St. 10 Comment
  POM186294  Isolepis cernua Joseph A. Ewan 1932-7-29 7727 Orange Newport Lagoon, on road around hills to Costa Mesa. Comment
  IRVC19387  Isomeris arborea R. L. Allen 1975-2-18 Orange Dana Hills High School nature preserve; common. Dana Point Comment
  IRVC9273  Isomeris arborea B. T. Gittins 1963-3-3 9 Orange [Lower] Newport Bay, sandy bluff at entrance to Balboa Island Newport Beach Comment
  IRVC9274  Isomeris arborea B. T. Gittins 1963-5-24 247248 Orange Newport Bay, beside road near salt ponds. Newport Beach Comment
  RSA658217  Isomeris arborea T. A. Daubert 1991-5-26 664 Orange Tucker Wildlife Sanctuary, Modjeska Canyon, fire road. Comment
  RSA696235  Isomeris arborea L. C. Hull 1934-3-7 s.n. Orange Laguna Hills 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
  RSA5819  Iva axillaris subsp. robustior C. B. Wolf 1932-6-28 3804 Orange Edge of field on Bixby Ave. 750 ft. east of SW corner of NW 1/4 of NW 1/4 of Sect. 33. Comment
  CLARK-A1528-1975  Jaumea carnosa John C. Roos 1949-10-1 4682 Orange Doheney Beach Comment
  JEPS19530  Jaumea carnosa Peter H. Raven 1957-9-28 11384 Orange salt marshes at n limits Surfside Comment
  POM122750  Jaumea carnosa Marcus E. Jones 1924-8-26 s.n. Orange Newport. Comment
  POM361345  Jaumea carnosa L. C. Wheeler 1932-6-22 846 Orange Newport Bay, Orange County Comment
  UCR66998  Jaumea carnosa A. C. Sanders 1990-10-6 10182 Orange South Coast, Newport Back Bay, SW side at North Star County Beach, SW end of the bay, c. 2 km inland from Hwy 1/ Pacific Coast Hwy 3 Comment
  RSA0059091  Jaumea carnosa Louis C. Wheeler 1932-6-22 846 Orange Newport Bay. 0 Comment
  RSA301965  Jaumea carnosa J. R. Shevock 1972-9-27 2285 Orange Newport Back Bay. 2 Comment
  POM11677  Jepsonia parryi P. A. Munz, I. M. Johnston 1922-5-18 5314 Orange Santa Ana River Canyon, 3 miles south of Orange Co. line., side canyon. 457 Comment
  POM9770  Jepsonia parryi Gordon Nicholsen 1921-01 s.n. Orange Santa Ana Canyon. Comment
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Aug 8 2010
  CAS-BOT-BC101917  Juglans californica John Thomas Howell 1927-7-27 2847 Orange Hills on n. side of Santa Ana [Canon] Canyon 152 Comment
  CAS-BOT-BC101921  Juglans californica Marcus E. Jones 1924-4-25 s.n. Orange Brea Canyon Comment
  HSC13962  Juglans californica S. M. Clapp 1966-4-10 39 Orange 1 mi. N of Brea, on Brea Canyon Rd. 61 Comment
  SD42257  Juglans californica Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds. Comment
  SD245393  Juglans californica R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49613 Orange Santa Ana Mountains: along Ortega Highway (74) about 2.5 miles above San Juan Fire Station. Comment
  SD70810  Juglans californica var. californica Lucille Kempers 1955-3-19 252 Orange Flying Cow Ranch in Carbon Canyon 259 Comment
  UC1135931  Juglans californica var. californica H. E. Norton 1931-3-13 39 Orange Anaheim Corona (Anaheim) Quadrangle (Plot #13) Comment
  CAS-BOT-BC334501  Juglans hindsii R. E. Riefner, Jr. 2010-9-8 10 -121 Orange City of Laguna Beach, Laguna Canyon, ca 0.15 mi S of El Toro Rd. on E side of Laguna Canyon Rd. 75 Comment
  RSA781304  Juglans hindsii A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37203 Orange 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
  SD241062  Juglans hindsii R. E. Riefner Jr. 2011-8-25 11 114 Orange Trabuco Canyon, Trabuco Canyon Road ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  SEINET4691551  Juglans hindsii R. E. Riefner Jr. 2011-1 11 -34 Orange City of Laguna Beach, Laguna Canyon, Laguna Wilderness Park, Stagecoach Trial, ca. 0.15 mi N of El Toro Rd. on W side of Laguna Beach Rd. 86 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
  UCR280608  Juglans hindsii R. E. Riefner Jr. 2015-11-21 15- 451 Orange South Coast, city of Orange, Irvine Regional Park, south end of Park, west of railroad track near Petting Zoo 165 Comment
  RSA22739  Juglans regia Carl B. Wolf 1939-11-29 9545 Orange Orange County Picnic Grounds, Comment
  SD248445  Juglans regia R. E. Riefner Jr. 2011-8-25 11 115 Orange Trabuco Canyon, Trabuco Canyon Road, ca. 1 mile NW of O'Neill Regional Park. 319 Comment
  UCR158462  Juncus Adrian Wolf 1998-5-27 318 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
  RSA795706  Juncus W. R. Ferren 1991-12-4 EPA- 18 Orange Cook Creek, tributary to Aliso Creek, San Juan Capistrano. Comment
  UCD141300  Juncus acutus subsp. leopoldii Jim Sherar 1992-9-1 s.n. Orange near Huntington Beach. Comment
  RSA731916  Juncus balticus var. balticus Fred M. Roberts, Sandy Leatherman 2007-11-27 6663 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
  UCD169360  Juncus macrophyllus A. C. Sanders; Fred M. Roberts, Michelle Balk 2006-7-20 33045 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. 366 Comment
  SD245183  Juncus macrophyllus R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49575 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Comment
  SEINET10755887 Image available Juncus nodosus Coe F. Austin Austin s.n. Orange Comment
  UCR193024  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 366 Comment
  RSA683076  Juncus phaeocephalus Scott D. White, Amanda Duchardt 2003-5-1 9151 Orange Canada Gobernadora. 122 Comment
  UCR174221  Juncus rugulosus A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33025 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
  RSA0014070  Juncus textilis Fred M. Roberts, R. E. Riefner 2010-5-30 7023 Orange Lomas de Santiago: Loma Ridge, Hanging Man s Tree Cyn., along Hanging Man s Tree Cyn. Rd., c.a. 0.4km W Santiago Cyn. Rd., and 1.2 km N Bolero Lookout. 372 Comment
  RSA101  Juncus xiphioides J. T. Howell 1927-7-18 427 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  RSA21231  Juniperus californica E. R. Johnson 1937-3-28 8502 Orange 4 9/10 mi. E. of San Juan Capistrano on No. side of Ortega Highway. Comment
  RSA0130691  Juniperus californica S. B. Bryant 1934-1-13 5567 Orange Midway between San Juan Capistrano and San Juan Hot Springs. Comment
  SEINET10932779  Juniperus chinensis Carlyle Wilson Bennett, David B. Dunn; Chester T. Dziekanowski 1976-7-21 Bennett 438 Orange Cultivated plants collected in and around the condominium-Pacific Island Estates in Laguna Hills; some native shrubs, etc. 150 Comment
  RSA0038511  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11 -81 Orange city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 2 Comment
  UCR240182  Juniperus rigida var. conferta R. E. Riefner Jr. 2011-7-1 11- 81 Orange South Coast, city of Newport Beach, beach area between Shorecliff Road and Cameo Shores Road 18 Comment
  CAS-BOT-BC235489  Keckiella antirrhinoides Jenkins 1929-2-6 s.n. Orange Claymine Canyon, Santa Ana Mts. 213 Comment
  POM6386  Keckiella antirrhinoides Philip A. Munz, Street, Williams 1919-5-3 2621 Orange Santa Ana River Canyon. Comment
  UCR50731  Keckiella antirrhinoides Steve Hampson 1988-5-12 s.n Orange Santa Ana Mtns, Harding Canyon above Modjeska Reservoir. Streamside 488 Comment
  NY786524  Keckiella antirrhinoides var. antirrhinoides D. C. Michener 1980-6-5 3668 Orange Santa Ana Mountains. San Juan river valley, on terrace near abandoned mine(s). Comment
  RSA34536  Keckiella cordifolia N. C. Cooper 1944-6-4 1340 Orange San Juan Canyon. 305 Comment
  UCR227631  Keckiella cordifolia Robt. L. Allen 2003-6-22 12288 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, near the saddle between Santiago and Modjeska Peaks, along North Main Divide Road 1523 Comment
  UCR239601  Kickxia O. F. Clarke 2004-7-19 s.n. Orange South Coast, Talbert Regional Park, Costa Mesa, at end of 19th St. 3 Comment
  UCR150570  Kickxia elatine Scott D. White, Matt Carlton 2003-11-20 9866 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 24 Comment
  POM7128  Koeleria macrantha P. A. Munz, L. T. Street, G. Williams 1919-5-3 2633 Orange Santa Ana River Canyon. Comment
  RSA708524  Koeleria macrantha Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6242 Orange Modjeska Peak summit, c.a. 60m south of highest point. 1675 Comment
  RSA725510  Koelreuteria bipinnata Fred M. Roberts 2007-9-11 6563 b Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  UCR184669  Koelreuteria bipinnata Dean Kelch 2006-12-9 06 .556 Orange Irvine. University Dr. along tidal Creek just east of I-73 9 Comment
  UCR236678  Koelreuteria paniculata Fred M. Roberts, Sandra L. Leatherman 2008-9-17 7100 Orange Peninsular Ranges, Yorba Linda: Santa Ana River Canyon, Santa Ana River, 0.7 km W Gypsum Cyn. Rd. bridge, south of La Palma Ave. 107 Comment
  UCR195006  Lactuca serriola A. C. Sanders, Fred M. Roberts 2008-8-7 36001 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon at powerline crossing, 1.0 mi. (air) SSE of Walnut Canyon Reservoir 226 Comment
  IRVC27753  Lamarckia aurea Mark A. Elvin 2004-5-2 3427 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7km (air) NNW UC Irvine campus center. Southern Coastal 3 Comment
  JEPS71239  Lamarckia aurea L. M. Booth 1932-5-12 1022 Orange Newport Bay Comment
  POM202589  Lamarckia aurea L. M. Booth 1932-5-12 1022 Orange Newport Bay Comment
  UCR192490  Lamarckia aurea A. C. Sanders, Fred M. Roberts 2008-3-25 34557 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  CDA23089  Lampranthus aurantiacus Mark A. Elvin, D. G. Kelch 2006-12-9 5303 Orange Southern Coastal; Newport Backbay; Big Canyon, lower end. Comment
  CAS-BOT-BC338907  Lasthenia californica Frank W. Peirson 1925-4-11 5746 Orange 5 miles south of Laguna Beach Comment
  RSA734643  Lasthenia glabrata A. C. Sanders, Fred M. Roberts 2008-3-25 34571 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
  IRVC21758  Lasthenia glabrata subsp. coulteri B. L. Parry 1985-5-2 79 Orange old stables site, near Pelican Point, 1.6km SE Pelican Hill; 1.1km NW Crystal Cove, Crystal Cove State Park 25 Comment
  RSA0024932  Lasthenia glabrata subsp. glabrata R. E. Riefner Jr. 2013-3-10 13 -39 Orange City of Lake Forest, along El Toro Rd. at Destry Rd. 211 Comment
  UC484260  Lasthenia gracilis C. B. Wolf 1931-3-6 1847 Orange 1 mi above Trabuco Oaks Trabuco Canyon; Santa Ana Mts. 518 Comment
  JEPS55289  Lathyrus vestitus var. alefeldii Frank W. Peirson 1925-4-10 Orange Silverado Canyon 457 Comment
  SFV1820  Lathyrus vestitus var. vestitus E. R. Blakley 1957-4-26 2070 Orange State Route 140, 5 miles east of Mission San Juan Capistrano. 122 Comment
  JEPS68631  Lavatera assurgentiflora subsp. assurgentiflora Lawrence M. Booth 1932-5-26 1121 Orange Newport Bay Comment
  CAS-BOT-BC380858  Layia platyglossa P. C. Everett 1935-4-15 2349 Orange Atwood, 0.8 miles e. of Atwood on the south side of santa Fe R.R. 106 Comment
  RSA747636  Layia platyglossa Fred M. Roberts 2008-5-16 6983 Orange Dana Point: Dana Point Headlands, CNLM Preserve, north of Marguerita Drive, 0.5 km WNW Marine Institute, Dana Point Harbor. 75 Comment
  UCR223431  Layia platyglossa Dick Newell, Don Millar 2011-3-1 074 Orange Peninsular Range; Santa Ana Mtns. Foothills, MWD road east of outdoor education property, 1.6 mi. NW (312 deg. ) of Irvine Lake dam 258 Comment
  UCR207798  Lemna O. F. Clarke 2004-11-14 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA715699  Lemna minuta Fred M. Roberts, Chris M. Barnhill 2005-9-27 6280 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4km E Mission San Juan Capistrano, 27 Comment
  UCR171395  Lemna minuta R. E. Riefner Jr. 2005-10-27 05 303 Orange City of Irvine; along Jeffrey Rd. N of Barranca Rd. near Irvine Valley College 47 Comment
  UCSB52476  Lemna minuta Roberts, Fred; Ferren, Wayne 1982-7-21 Orange Newport Beach; Newport Backbay, Back Bay Dr., 1.4 km. N jct. San Joaquin Hills Rd. 1 Comment
  UC1124486  Lepechinia cardiophylla H. E. Norton 1931-3-30 41 Orange Ridge between Ladd and East Fork Canyons 1036 Comment
  CAS-BOT-BC89063  Lepidium didymum Scott D. White 1998-3-24 6227 Orange University of California Irvine Campus. Site of proposed Research Park, southwest of main campus circle. 48 Comment
  RSA731752  Lepidium didymum Fred M. Roberts 2007-11-9 6653 Orange San Juan Canyon along San Juan Creek, about 0.6 km E San Diego FWY. 24 Comment
  IRVC1099  Lepidium lasiocarpum G. Olander 1965-4-3 Orange Corona del Mar, Begonia and 2nd Ave. Newport Beach Comment
  RSA697452  Lepidium lasiocarpum Snow 1929-2-20 15 Orange Roadside-Dana Pt. Comment
  UCR247905  Lepidium latifolium Fred M. Roberts 2013-6-12 7789 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
  UCR191339  Lepidium nitidum A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34648 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
  UCR60664  Lepidium nitidum var. nitidum C. B. Wolf 1932-2-15 02657 Orange Rancho Santa Ana Botanic Garden, above the Rubus beds 183 Comment
  RSA0022429  Lepidium virginicum var. pubescens R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49787 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR222386  Lepidium virginicum var. robinsonii Mark A. Elvin 2003-1-26 2245 Orange South Coast, Irvine, UC Irvine Open Space Preserve, NE side, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA699300  Lepidospartum squamatum Keith E. Hoffmaster 1933-10-15 1158 Orange Santa Ana Mts. Comment
  RSA754068  Lepidospartum squamatum A. C. Sanders, Fred M. Roberts 2008-7-16 35864 Orange Lomas de Santiago, Santiago Creek wash at and above the confluence of Hangmans Tree Canyon 358 Comment
  UCR240072  Lepidospartum squamatum Dick Newell, Judy Booth 2012-9-4 285 Orange Peninsular Range; Santa Ana Mtns., city of Irvine, Fremont Canyon mouth [Irvine Lake Dam Spillway] at Metropolitan Water District Road, 0.3 mi due north of Santiago Dam 205 Comment
  UCR240087  Lepidospartum squamatum Dick Newell, Judy Booth 2012-6-3 262 Orange Peninsular Range; Santa Ana Mtns., Cleveland National Forest, Maple Springs Truck Trail/Silverado Canyon Rd., 1.6 miles ENE of Maple Springs Gate 741 Comment
  POM202734  Leptochloa fusca subsp. uninervia L. M. Booth 1932-7-18 1262 Orange Costa Mesa, Newport Bay Comment
  RSA226742  Leptochloa fusca subsp. uninervia I. L. Wiggins 1965-11-6 20336 Orange Along west side of village of Atwood. Comment
  RSA712939  Leptochloa fusca subsp. uninervia Fred M. Roberts 2005-10-3 6304 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
  UCR154270  Leptochloa uninervia Mark A. Elvin 2004-5-2 3425 Orange Southern Coastal, Irvine: San Joaquin Freshwater Marsh, near Campus and University Drives; 1.7 km (air) NNW UC Irvine campus center 3 Comment
  UCR16662  Leptodactylon californicum subsp. leptotrichomum David M. Peterson 1966-3-9 660309- 11 Orange Peninsular Range; Santa Ana Mtns., 13 mi east of San Juan Capistrano on the road to Elsinore 457 Comment
  RSA574  Leptosiphon androsaceus J. T. Howell 1928-4-7 905 Orange Botany Garden, Rancho Santa Ana. [original location] Comment
  CAS-BOT-BC402204  Leptosiphon floribundus subsp. floribundus R. F. Thorne; C. W. Tilforth; E. W. Lathrop 1977-4-27 49714 Orange Santa Ana Mountains: Bedford Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail Comment
  RSA708223  Leptosiphon floribundus subsp. floribundus Fred M. Roberts, Robert L. Allen, Chris Barnhill, Nancy Hatfield 2005-5-30 6216 Orange Main Divide Road, ridge between Silverado and Bixby Canyons, coastal slope, 0.46km (air) S Bald Peak. 1203 Comment
  RSA587876  Leptosiphon liniflorus Fred M. Roberts 1990-5-9 4625 Orange Rancho Mission Viejo; Christianitos Canyon, TRW Lease Holding, 4.3 km NE Clemente Survey Marker. 91 Comment
  RSA789223  Leptosiphon parviflorus Naomi Fraga 2009-5-11 2718 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 Comment
  UCR256935  Leptosiphon parviflorus Naomi Fraga 2009-5-11 2718 Orange Santa Ana Mountains, Cleveland National Forest, San Juan Loop Trail just west of Sugarloaf Spur Trail 912 Comment
  UCR46713  Lessingia glandulifera var. glandulifera B. G. Pitzer, D. C. Hawks 1986-10-21 0355 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, c. 10 mi. east of Santa Ana, along Jeffrey Road in Hicks Canyon, c. 1.5 mi. north of the South Coast Gun Club 274 Comment
  RSA698086  Lilium humboldtii J. Vlahos 1934-03 s.n. Orange Black Star Canyon. Comment
  RSA716775  Lilium humboldtii Fred M. Roberts, Michelle Balk, Robert Allen, Chris Brnhill 2004-6-19 6066 Orange Santa Ana Mtns: Holy Jim Cyn.: Holy Jim Trail, 3.5km SE summit of Santiago Peak. 610 Comment
  UCR231348  Lilium humboldtii A. C. Sanders, Kent Beaman 2011-9-27 39901 Orange Peninsular Range; Santa Ana Mtns., Maple Springs Truck Trail above Silverado, at major (dry) stream crossing, 3.95 km NNW (347 deg. ) of Santiago Peak 903 Comment
  UC1873111  Limonium R. E. Riefner Jr. 2006-10-19 06 -543 Orange Santa Ana Mountains, City of Rancho Santa Margarita, Robinson Ranch Road at Shadow Rock Road 419 Comment
Read comments
Jun 15 2011
  CDA1076  Limonium binervosum D. G. Kelch 2006-12-9 6 .547 Orange Along Newport Back Bay Dr. in side canyon. Comment
  RSA401665A  Limonium californicum F. R. Fosberg 1930-7-10 53982 Orange Anaheim Landing. [Now Seal Beach, Orange County. Los Angeles Co. on label] 1 Comment
  UCR282154  Limonium duriusculum R. E. Riefner Jr. 2017-3-10 17- 75 Orange South Coast, city of Mission Viejo, along Olympiad Road near intersection with Alicia Parkway 253 Comment
  RSA716344  Limonium ramosissimum R. E. Riefner 2006-8-11 6 -386 Orange Upper Newport Bay, E of Back Bay - Bayside Dr. flats along Big Canyon Creek. 5 Comment
  RSA723550  Limonium ramosissimum R. E. Riefner 2006-8-11 6 -386 Orange Upper Newport Bay, E of Back Bay - Bayside Dr. flats along Big Canyon Creek. 5 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
  JEPS58154  Linanthus androsaceus A. J. Perkins 1913-4-27 Orange Trabuco Canyon Comment
  CHSC13481  Linanthus californicus T. N. Casale 1974-4-11 5 Orange On side of road, ca. 7.3 mi ne of the Mission San Juan Capistrano on Hwy 74. 243 Comment
  HSC25236  Linanthus californicus Richard Spjut 1972-2-22 2229 Orange W border of the Cleveland National Forest in Santa Ana Mtns. along Hwy. 74 305 Comment
  RSA2111  Linanthus californicus C. B. Wolf 1931-3-6 1831 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon Road 305 Comment
  CLARK-A1528-3471  Linanthus dianthiflorus John C. Roos 1937-2-23 1306 Orange Laguna Beach Comment
  SBBG98236  Linanthus dianthiflorus C. B. Wolf 1932-3-8 2675 Orange 0.5 mi N of Corona del Mar, borders of Newport Bay 7 Comment
  UCR191428  Linanthus dianthiflorus A. C. Sanders, Fred M. Roberts 2008-4-8 34778 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Harding Truck Trail at Dripping Springs Loop, above Limestone Canyon 495 Comment
  POM36578  Linanthus dianthiflorus subsp. dianthiflorus M. B. Dunkle 1935-2-23 4338 Orange Dana Point. 15 Comment
  RSA4498  Linanthus dianthiflorus subsp. dianthiflorus C. B. Wolf 1932-3-14 2711 Orange At west side of Botanic Garden(this is the only known patch in the vicinity of the B.g.) 192 Comment
  UCR191340  Linaria canadensis A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34617 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
  RSA0054843  Linaria canadensis Keith E. Hoffmaster 1927-4-2 304 a,b,c,d Orange Santa Ana Mts. San Onofre. Comment
  UCR158152  Lippia nodiflora Adrian Wolf 1998-5-27 421 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
  UC1618102 Image available Lithophragma cymbalaria Donald G. Nelson 1935-7-6 252 Orange San Juan Canyon. North bend of canyon stream Comment
Read comments
Apr 11 2009
  HSC6864  Lobularia maritima J. W. Johnson 1961-3-29 Orange Newport Beach, slope overlooking Upper Newport Bay. Comment
  UCSB47977  Lobularia maritima Roberts, Jr., Fred 1980-2-17 Orange Bluffs west of Dana Marina along Dana Strand road, Dana Point 56 Comment
  JEPS33564  Logfia filaginoides Alice King 1908-4-1 Orange Santiago Creek (This was the only locality given and it is assumed that it is the creek of the name in Orange County--L. Heckard, 1964) Santiago Creek Comment
  SD247596  Logfia filaginoides R. F. Thorne, C. W. Tilforth, E. W Lathrop 1977-4-27 49668 Orange Northern Santa Ana Mountains: Coal Canyon (NW of Sierra Peak). Comment
  RSA603344  Lolium perenne Scott D. White 1997-6-12 5322 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  SEINET192714 Image available Lolium perenne C. B. Wolf 1932-6-13 Orange Fullerton Rose Drive 53 Comment
  UC729941  Lolium perenne Carl B. Wolf 1932-6-13 3728 Orange Fullerton; Malvern and Nicholas Avenues 53 Comment
  UCR191470  Lolium perenne A. C. Sanders, Fred M. Roberts 2008-4-8 34735 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge, head of Hicks Canyon, S of Santiago Reservoir 351 Comment
  RSA688868  Lolium perenne Fred M. Roberts 2003-5-1 5670 Orange Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.49km S Gato Gate and just west of Cristianitos Rd. (San Clemente) 84 Comment
  RSA0051390  Lolium perenne subsp. multiflorum Robert F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49665 Orange Northern Santa Ana Mountains: Coal Canyon [NW of Sierra Peak]. Comment
  RSA6065  Lolium perenne subsp. multiflorum C. B. Wolf 1932-6-13 3717 Orange Storm drain at Malvern and Nicholas Aves; Fullerton. 53 Comment
  RSA734616  Lolium temulentum Keith E. Hoffmaster 1927-4-26 39 Orange Santa Ana. Comment
  SEINET8465373 Image available Lomatium dasycarpum Norman Cooper 1944-6-4 1324 Orange Elsinore Mountain 1067 Comment
  RSA1492  Lomatium dasycarpum subsp. dasycarpum E. R. Johnson 1929-4-11 1255 Orange Sierra Peak Trail. Comment
  CAS-BOT-BC241459  Lonicera involucrata var. ledebourii Agnes M. Bowman 1899-6-1 s.n. Orange Orange Comment
  UCR193842  Lonicera subspicata A. C. Sanders, Fred M. Roberts 2008-7-16 35858 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, upper Hangmans Tree Canyon 395 Comment
  RSA5337  Lonicera subspicata var. denudata B. D. Stark 1933-1-4 4489 Orange Ridge above Claymine Canyon. No. end of Santa Ana Mts. 213 Comment
  UC284253  Lonicera subspicata var. denudata P. A. Munz 1923-1-14 7052 Orange Glen Ivy Trail to Santiago Peak; Santa Ana Mts. 1066 Comment
  RSA697960  Lotus americanus Domeroy 1929-5-19 s.n. Orange Old road to Orange Co. Park Comment
  RSA234567  Lotus corniculatus James Henrickson 1970-8-22 5300 Orange 2.5 miles NNW of Huntington Beach. 0 Comment
  UC1543240  Lotus hamatus Donald G. Nelson 1935-4-14 286 Orange facing Newport Bay and the ocean (along main coast highway); Newport Beach Comment
  UC1719510  Lotus hamatus D. Atwood 1993-3-27 17693 Orange Corona del Mar State Park along Newport Coast Drive 0 Comment
  UC454692  Lotus heermannii I. J. Condit 1908-7-21 Orange Los Alamitos Comment
  POM50645  Lotus micranthus L. R. Abrams 1901-06 1825 Orange Santiago Peak Trail 915 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
  UCR192494  Lotus salsuginosus A. C. Sanders, Fred M. Roberts 2008-3-25 34562 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  IRVC19937  Lotus salsuginosus subsp. salsuginosus Gordon A. Marsh, K. G. Marsh 1983-3-2 Orange burn area on ridge between Coal and Gypsum Canyons, Santa Ana Mountains Comment
  JEPS55886  Lotus scoparius Alice King May 1902 Orange Newport Comment
  RSA393  Lotus scoparius J. T. Howell 1927-6-1 4 Orange Botany Garden, Rancho Santa Ana. [original location] 152 Comment
  RSA769616  Lotus scoparius E. W. Lathrop 1974-6-27 7415 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR4073  Lotus scoparius Carole Sims 1965-3-28 s.n. Orange South Coastal Plains, 100 yards from Pacific Coast Highway on Salt Creek Road toward the beach. Between South Laguna and Dana Point 18 Comment
  HSC98259  Lotus scoparius J. J. Wagoner 1965-4-11 14 Orange 6 mi. N of Modjeska Canyon near Irvine Lake off of Irvine Rd. 152 Comment
  SEINET2073834  Lotus scoparius R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, top of sand hill. Comment
  IRVC2242  Lotus scoparius subsp. brevialatus C. Hooven 1965-4-25 Orange Spruce Ave. and Palisades. Santa Ana Heights Comment
  IRVC2251  Lotus scoparius subsp. scoparius C. Hinesly 1965-1-30 Orange [Newport] Back Bay. Newport Beach Comment
  UCR193542  Lotus scoparius var. scoparius A. C. Sanders, Fred M. Roberts 2008-7-3 35668 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  UCR203987  Lotus scoparius var. scoparius Fred M. Roberts 2008-3-12 6729 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
  UCR99549  Lotus scoparius var. scoparius B. G. Pitzer 1996-4-30 2802 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  UCR102008  Lotus strigosus B. G. Pitzer 1997-3-25 3030 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
  UCR168249  Lotus strigosus M. B. Dunkle 1933-3-5 3087 Orange Southern Coast, San Juan Canyon 305 Comment
  UCR192996  Lotus strigosus A. C. Sanders, T. B. Salvato 2008-5-13 35341 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
  RSA0022427  Lotus strigosus Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49782 Orange Santa Ana Mountains: Trabuco Canyon Comment
  IRVC20398  Lotus strigosus var. strigosus Fred M. Roberts 1983-3-27 947 Orange Dana Point headlands: just south of Dana Strand Rd., 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School, southern coastal 80 Comment
  IRVC21292  Lotus strigosus var. strigosus Fred M. Roberts, Karlin G. Marsh 1984-2-15 1201 Orange Casper's Regional Park: Rancho: Rancho Carrillo Rd., 1.0km NE Visitor Center; 3.0km SW Lucas Survey Mark, Santa Ana Mountains 150 Comment
  IRVC22008  Lotus strigosus var. strigosus Fred M. Roberts, Gordon Marsh 1985-3-12 1502 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
  SD227862  Ludwigia repens Scott D. White, Brian Leatherman 1997-6-12 5343 Orange East of San Juan Capistrano: San Juan Creek between Hwy 74 jtn. 45 Comment
  UCSB10696  Lupinus Robert M. Lloyd 1959-4-17 207 Orange collected in the Black Star Canyon of the Santa Ana Mountains Black Star Canyon 640 Comment
  RSA698718  Lupinus albifrons L. C. Hull 1934-3-11 s.n. Orange Ortega Highway. Comment
  CAS-BOT-BC198413  Lupinus albifrons var. albifrons Andrew S. Wheeler 2009-5-12 40305 RSA Orange Long Canyon road, between Blue Jay Campground and Convict Camp, 4 miles west of Lake Elsinore Comment
  RSA732083  Lupinus bicolor A. C. Sanders, Fred M. Roberts 2008-3-25 34552 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills. 259 Comment
  UCD107254  Lupinus bicolor C. L. Hitchcock 1966-3-15 24135 Orange 1/2 mile e. of Brea. Comment
  IRVC24765  Lupinus bicolor subsp. umbellatus Fred M. Roberts 1986-4-24 2790 Orange Rancho Mission Viejo: Canyon east of Trampas Canyon, S of Hwy 74, 2.5km E Viejo Survey Mark. Santa Ana Mountains 113 Comment
  RSA619240  Lupinus densiflorus R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon, Santa Ana Mountains, Cleveland National Forest Comment
  CAS-BOT-BC216675  Lupinus excubitus subsp. hallii Carl B. Wolf 1932-5-27 2952 Orange 0.75 miles W of Atwood, Just S of Santa Fe RR 91 Comment
  CAS-BOT-BC216671  Lupinus excubitus subsp. hallii Charles Piper Smith 1946-4-12 46153 Orange Santa Ana Canyon Comment
  SEINET10452686  Lupinus excubitus subsp. hallii Stark 1933-2-3 STARK 19497 Orange Garden #6455 (from 1780 many generations). Comment
  IRVC2308  Lupinus excubitus var. hallii B. Mawdsley 1965-5-2 s.n. Orange Cleveland National Forest; Silverado [Canyon]. Santa Ana Mountains Comment
  IRVC24802  Lupinus excubitus var. hallii Fred M. Roberts, Gordon Marsh 1986-5-16 2908 Orange Ridge above San Juan Canyon, Sitton Peak Truck Trail, 4.0km W Sitton Peak, Santa Ana Mountains 670 Comment
  RSA6198  Lupinus excubitus var. hallii Carl B. Wolf 1932-5-27 3699 Orange Santa Fe R R, 1 mile West of Esperanza, Santa Ana Canyon. 107 Comment
  SD143895  Lupinus hirsutissimus Scott D. White 1997-3-28 4837 Orange Santa Ana Mountains, above Modjeska Canyon, proposed water tank site; USGS Santiago Peak 7.5' quad. 424 Comment
  RSA413751  Lupinus latifolius subsp. parishii N. C. Cooper 1944-6-4 1336 Orange San Juan Canyon. 549 Comment
  IRVC14759  Lupinus longifolius A. S. Boughey 1965-6-15 152 Orange Ortega highway; ca. 1.0 mile E of San Juan Guard Station. Santa Ana Mountains Comment
  RSA4866  Lupinus longifolius E. R. Johnson 1932-4-15 2957 Orange Rancho Santa Ana, 1mile NWof Roundtop (section 16) 457 Comment
  RSA0059076  Lupinus longifolius CNPS Accuracy Assessment Team 2014-5-7 7176 Orange Limestone Canyon. Comment
  UCR177694  Lupinus microcarpus var. microcarpus Fred M. Roberts 2003-5-1 5689 Orange Coastal Plains & Basins; South Coastal Plain region, Rancho Mission Viejo: Donna O'Neill Land Conservancy, Cristianitos Cyn., 0.56 km SSW Gato Gate and 0.21 km west of Cristianitos Rd. 96 Comment
  IRVC21666  Lupinus microcarpus var. microcarpus R. L. Allen 1979-2-28 A 6 Orange Mission Viejo: right shoulder of Interstate 5, northbound, near Alicia Bridge. Southern Coastal Comment
  SEINET2073427  Lupinus polyphyllus var. polyphyllus R. Beal 1980-5-6 Orange Dana Point, above Pacific Ocean, growing in hard-packed sand of sand hill. Comment
  UC1543230  Lupinus sparsiflorus Donald G. Nelson 1935-4-6 219 Orange e San Juan Capistrano (just s of boundary of Cleveland National Forest); just s of boundary Cleveland National Forest, San Juan Canyo Comment
  UCR191351  Lupinus sparsiflorus A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34638 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
  UCR266299  Lupinus sparsiflorus D. E. Bramlet 2008-3-26 4126 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
  IRVC2341  Lupinus sparsiflorus subsp. sparsiflorus J. Morgan 1965-4-13 s.n. Orange Laguna Canyon. Southern Coastal Comment
  RSA405  Lupinus sparsiflorus subsp. sparsiflorus J. T. Howell 1928-2-25 843 Orange Nolina Canyon, Rancho Santa Ana. 152 Comment
  RSA542385  Lupinus sparsiflorus subsp. sparsiflorus Fred M. Roberts 1988-3-15 3871 Orange Rancho Mission Viejo: Central Gabio Canyon, 7.0 km E Playa Survey Marker. 162 Comment
  IRVC15180  Lupinus sparsiflorus subsp. sparsiflorus Gordon A. Marsh, K. Conrey 1977-4-14 s.n. Orange Lomas de Santiago: Lomas Ridge, 1/4mi NNW Rattlesnake Canyon Reservoir Dam. Southern Coastal Comment
  IRVC2343  Lupinus succulentus Tony Price 1965-4-17 HS 0414 Orange Black Star Canyon. Santa Ana Mountains Comment
  IRVC24922  Lupinus succulentus Fred M. Roberts, Gordon Marsh 1986-6-6 2990 Orange Black Star Canyon, Black Star Canyon Rd., 6.6km SSW Sierra Peak. Santa Ana Mountains 460 Comment
  RSA89141  Lupinus succulentus E. K. Balls 1952-3-8 18876 Orange Along Esperanza Road, W of entrance to Rancho Santa Ana. Comment
  UCR228781  Lupinus truncatus Dick Newell, Don Millar 2011-5-3 135 Orange Coastal Plains, San Joaquin Hills, Laguna Canyon Wilderness Park, Willow Trail 160 Comment
  UCR52603  Lupinus truncatus Jeri Hirshberg 1988-6-7 s.n. Orange Santa Ana Mountains, Santa Ana Mountains 275 Comment
  CAS-BOT-BC413809  Lycium brevipes R. E. Riefner, Jr. 2008-1-26 08 -10 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
  CAS-BOT-BC233468  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mi. No. of Corona Del Mar, borders of Newport Bay 7 Comment
  POM4211  Lycium californicum D. L. Crawford 1916-5-5 s.n. Orange Laguna Beach. Comment
  RSA3177  Lycium californicum Carl B. Wolf 1932-3-8 2686 Orange 1/2 mile N of Corona del Mar, Newport Bay. 8 Comment
  UCR207557  Lycium californicum O. F. Clarke 2004-4-5 s.n. Orange South Coast, Newport Back Bay 3 Comment
  RSA0071939  Lycium californicum CNPS Accuracy Assessment Team 2014-7-22 6468 .1 Orange Crystal Cove State Park. Comment
  RSA0014844  Lythrum californicum Scott D. White 1998-5-31 6570 Orange University of California Irvine Campus, Southwest of Farm School site (now proposed as Student Rec. Ctr.). 37 Comment
  UCD169742  Lythrum californicum R. F. Thorne; E. W. Lathrop, W. Wisura 1977-7-8 49631 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs. 205 Comment
  RSA0014835  Lythrum californicum Keith E. Hoffmaster 1927-6-26 452 Orange [Unspecified] Comment
  RSA0014840  Lythrum californicum F. W. Peirson 1924-8-29 5066 Orange 4 miles south of Santa Ana. Comment
  RSA0014842  Lythrum californicum J. T. Howell 1927-7-15 403 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA0014846  Lythrum californicum P. A. Munz 1918-5-4 2206 Orange Laguna. Near pond. Comment
  RSA39331  Lythrum hyssopifolia E. L. Paddock 1943-5-19 12748 Orange Low depression, Stewart Tank Farm, Union Oil co., 1 miles W of Brea Comment
  CAS-BOT-BC334724  Madia gracilis John Thomas Howell 1927-6-26 2613 Orange Claymine Canyon, north Santa Ana Mountains 243 Comment
  RSA638971  Madia gracilis Valerie L. Soza, LeRoy Gross 1999-6-8 496 Orange Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  RSA797823  Madia gracilis R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49812 Orange Santa Ana Mountains: Trabuco Canyon Comment
  UCR190965  Malacothamnus fasciculatus A. C. Sanders, Fred M. Roberts 2008-4-22 35058 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge c. 1/4 mi. SE of VABM Bee, above Bee Canyon landfill on road from Hicks Canyon Haul Rd. to Limestone Canyon, c. 3.5 miles WSW of Silverado 493 Comment
  OBI12363  Malacothamnus fasciculatus var. laxiflorus Robert F. Hoover 1968-6-10 11172 Orange Laguna Beach Comment
  CDA23124  Malacothrix saxatilis Mark A. Elvin, D. G. Kelch 2006-12-9 5328 Orange Southern Coastal; Newport Backbay; along Bayside Drive ca. 500 meters northeast of road to CA Department of Fish and Game office. Comment
  UCR80000  Malacothrix saxatilis Scott D. White 1992-10-20 973 Orange Vicinity of city of Brea, Immediately north of Carbon Canyon Rd & east of Placentia Avenue +-1mi (air) SSEof Tonner Canyon. 183 Comment
  IRVC21322  Malacothrix saxatilis var. tenuifolia Fred M. Roberts 1982-7-30 786 Orange Niguel Hill, 0.9km ENE Aliso Peak, Laguna Niguel 260 Comment
  JEPS112967  Malacothrix saxatilis var. tenuifolia Dean W. Taylor 1994-6-7 14410 Orange Newport Bay; along Backbay Drive at the junction with San Joaquin Hills Drive 6 Comment
  UC468866  Malacothrix saxatilis var. tenuifolia D. L. Crawford 740 Orange Aliso Canyon Laguna Beach Region Comment
  UCR106283  Malacothrix saxatilis var. tenuifolia B. G. Pitzer, M. Georgiady 1997-4-5 3076 Orange San Joaquin Hills, Crystal Cove State Park, along 'No Dogs' Trail (from parking area, along western bottom edge of ridge between Muddy Canyon & Moro Canyon), to just below intersection with 'Poles' trail 152 Comment
  IRVC29870  Malephora crocea Mark A. Elvin, D. Kelch 2006-12-9 5297 Orange Newport Backbay; Big Canyon, lower end. Southern Coastal 3 Comment
  RSA302142  Malephora crocea J. R. Shevock 1972-2-18 1337 Orange Bluffs, Newport back bay. 9 Comment
  LA62901  Malosma laurina W. E. Pequegnat; 1937-9-6 sn Orange Santa Ana Mountains, Ortega Rd Comment
  RSA13103  Malosma laurina Percy C. Everett 1935-10-29 2574 Orange Rancho Santa Ana, Santa Ana Canyon N of canal & Mexican houses. 122 Comment
  SD236159  Malosma laurina A. C. Sanders, Fred M. Roberts 2008-6-17 35462 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. mideway between Foothill Transportation Corridor and Santiago Cyn. Rd. 334 Comment
  UCSB48029  Malosma laurina Roberts, Fred 1980-7-7 Orange Santa Ana Mtns.; San Juan Canyon, Calif. Rte. 74; 2.2 km. ENE San Juan Guard Station; 0.6 km W Bench Mark 1100 305 Comment
  SD43546  Malva assurgentiflora Carl B. Wolf 1944-11-29 11497 Orange Open field in vacant lots, southeast of Costa Mesa. 22 Comment
  RSA184165  Malva parviflora I. L. Wiggins 1966-3-1 20479 Orange western edge of California State College campus, Fullerton Comment
  RSA627789  Malvella leprosa Scott D. White 1998-6-26 6779 Orange South Coast: Univ. of Calif. Irvine Campus. Along mapped intermittent blueline stream just N of Bonita Cyn Dr. 61 Comment
  UCR107222  Malvella leprosa Scott D. White 1998-6-26 6779 Orange Irvine, University of California, Irvine campus: low-lying seasonal wetland along mapped intermittent 'blueline' stream just north of Bonita Canyon Drive 70 Comment
  RSA441225  Marah macrocarpa M. B. Dunkle 1931-2-19 3839 Orange San Juan Canyon Comment
  RSA734010  Marah macrocarpa A. C. Sanders, Linda Farley, Fred M. Roberts, D. E. Bramlet 2008-4-1 34619 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, upper Hicks Canyon, along haul road c. 1.75 mi. NE of Rattlesnake Reservoir. 366 Comment
  UCSB16370  Marah macrocarpa Gerhart, Janet 1963-2-22 Orange 0.5 miles above locked gate on dirt road, Trabuco Canyon, 17.5 miles by road E of U.S. Highway 101 at El Toro Marine Base; 2.5 miles SE of Santiago Peak 396 Comment
  RSA184100  Marrubium vulgare I. L. Wiggins 1965-11-6 20347 Orange Near well #14, Kramer Oil Estates, near end of county road to Rancho Santa Ana. Comment
  RSA552932  Marrubium vulgare Fred M. Roberts, R. E. Riefner 1989-5-2 4333 Orange Aliso-Wood Canyons Regional Park: Lower Woods Canyon, 3.3 km S Multon Peak. 40 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
  UC1923821  Marsilea drummondii R. E. Riefner Jr. 2007-9-30 07 -415 Orange City of Yorba Linda, Santa Ana Canyon, urban runoff tributary to Santa Ana River, La Palma Ave. at Via Lomas De Yorba East. 110 Comment
  CAS-BOT-BC67807  Marsilea vestita Arthur Haupt 1935-4-12 s.n. Orange Costa Mesa Comment
  RSA799622  Marsilea vestita Justin M. Wood 2011-4-12 3656 Orange South Coast: City of Costa Mesa. Fairview Park, just WNW of Marison Special Education Center. 24 Comment
  RSA590719  Marsilea vestita R. E. Riefner 1994-4-15 94 -319 Orange Dana Hills, w ca 2 mi. of Cooks Reservoir Comment
  UC211179  Marsilea vestita subsp. vestita I. M. Johnston 1928-4-4 1979 Orange lakes in Laguna Canyon; San Joaquin Hills Comment
  CAS-BOT-BC60300  Matthiola incana James R. Shevock 1974-2-26 3272 Orange Along California highway 1 (Pacific Coast Highway) at Bolsa Chica Beach. 3 Comment
  POM311206  Matthiola incana Karen Hosterman 1956-4-7 501 Orange Laguna Beach City, cliff overlooking Crescent Bay. Santa Ana Mtn range, Pacific Ocean drainage. 2 Comment
  RSA431437  Matthiola incana L. C. Wheeler 1934-1-14 2364 Orange Aliso Creek near Laguna. 76 Comment
  RSA269262  Mazus japonicus G. D. Barbe 1973-8-9 1694 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  SD168148  Medicago lupulina R. L. Allen 1983-4-13 A 638 Orange Santa Ana,. 3030 Camille at Arapaho Comment
  IRVC2382  Medicago polymorpha Tony Price 1965-4-18 s.n. Orange Coasta Mesa; Santa Isabel St. Southern Coastal 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
  UCR192633  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
  UCR186145  Melaleuca citrina Robert DeRuff 1999-3-5 512 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr. between Big Canyon and Eastbluff Dr. 15 Comment
  UCR230879  Melaleuca nesophila R. E. Riefner Jr. 2011-7-1 11- 82 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1 mi from Poppy Avenue 2 Comment
  SEINET10832869  Melaleuca nesophila Charlene A. Bennett 1976-7-22 Bennett 446 Orange Cultivated and native plants collected around the san clemente beach area. 3 Comment
  SD255059  Melica frutescens Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49768 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UC1543191  Melica imperfecta Donald G. Nelson 1935-4-6 213 Orange e of San Juan Capistrano (San Juan Canyon, n of summer ranger station near the main highway, s of Cleveland National Forest); Santa Ana Mountains, San Juan Canyon Comment
  IRVC25157  Melilotus albus Fred M. Roberts 1986-9-3 3128 Orange adjacent to Anaheim, between Yorba Linda Regional Park and Imperial Hwy, Santa Ana River 88 Comment
  RSA590960  Melilotus albus Fred M. Roberts, Sandy Desimone 1991-3-28 4764 Orange Lake Forest: Along Regency Road near Brighton Lane, 5.4km SSW Bolero lookout. 244 Comment
  IRVC22485  Melilotus indicus Fred M. Roberts 1985-4-24 1651 Orange Laguna Beach: Laguna Canyon along Laguna Canyon Rd., 0.8km N jct. El Toro Rd. Southern Coastal 78 Comment
  IRVC2412  Melilotus indicus Anonymous 1965-3-14 s.n. Orange Dana Point. Southern Coastal Comment
  IRVC2415  Melilotus indicus J. B. Anderson 1966-4-16 578 Orange Newport Beach; Corona del Mar; Buck Gully; "Little Corona Beach"; moist canyon bottom with small brooklet near stream. Southern Coastal 0 Comment
  IRVC2429  Melilotus indicus H. Ellis 1965-3-18 s.n. Orange Newport Beach; Corona del Mar, Cameo Highlands. Southern Coastal Comment
  RSA184136  Melilotus indicus I. L. Wiggins 1966-3-18 20530 Orange California State College at Fullerton. Comment
  RSA5550  Melilotus indicus Carl B. Wolf 1932-6-28 3762 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA708735  Mentha aquatica Fred M. Roberts, Robert L. Allen, Chris Barnhill 2004-8-21 6120 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
  RSA0014074  Mentzelia micrantha Fred M. Roberts 2008-5-28 7011 Orange Lomas de Santiago: Loma Ridge, south fork Rattlesnake Cyn., 2.0km above Rattlesnake Reservoir dam and 2.2km WNW Bee Peak. 230 Comment
  POM49182  Mentzelia veatchiana L. R. Abrams 1901-6-15 1880 Orange Santiago Peak trail. Comment
  POM201709  Mesembryanthemum crystallinum L. M. Booth 1932-6-29 1224 Orange Newport Bay. Comment
  RSA402610  Mesembryanthemum crystallinum M. B. Dunkle 1933-4-9 3284 Orange Dana Point Comment
  RSA543973  Micropus californicus Steve Boyd, Orlando Mistretta 1991-5-9 6203 Orange Crest of range at Oak Flat, SE of Sierra Peak, just West of Riverside County Line. 793 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
  RSA599650  Microseris douglasii subsp. platycarpha Fred M. Roberts 1995-4-21 4931 Orange Irvine: San Joaquin Hills, Quail Hill area near end of San Canyon Road, 2.5 km ENE French Hill. 52 Comment
  UCR238203  Microseris heterocarpa Mark A. Elvin 2003-3-30 2395 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA965  Microseris heterocarpa J. T. Howell 1928-2-25 832 Orange Orange county: near the ranch houses, Rancho Santa Ana. 152 Comment
  UC171021  Mimulus H. M. Hall 1913-5-28 9404 Orange Santiago Canyon Comment
  LA209173  Mimulus aurantiacus M. Van Rensselaer; 1945-5-25 1883 Orange Laguna Canyon Comment
  UCR191245  Mimulus aurantiacus A. C. Sanders 2008-4-29 35134 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
  POM311166  Mimulus aurantiacus var. pubescens H. E. McMinn, M. Van Rensselaer 1945-6-9 1909 -E Orange North slope Laguna Canyon ca. 4 mi. east of Laguna Beach. Comment
  RSA82104  Mimulus aurantiacus var. pubescens F. W. Peirson 1924-5-31 4660 Orange Laguna Canyon, near Laguna Beach. 61 Comment
  UCSB48356  Mimulus aurantiacus var. pubescens 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
  HSC25251  Mimulus aurantiacus var. puniceus Richard Spjut 1972-2-21 2214 Orange Santa Ana Mtns., Cleveland National Forest, along Hwy. 74 305 Comment
  LA209127  Mimulus aurantiacus var. puniceus Joseph Andorfer Ewan; 1932-7-28 7692 Orange Corona del Mar Comment
  RSA442703  Mimulus aurantiacus var. puniceus M. B. Dunkle 1934-6-18 3968 Orange Upper San Juan Canyon. 610 Comment
  UCR116517  Mimulus aurantiacus var. puniceus Dan Hare 2001-5-1 s.n. Orange South Coastal Plains region, Crystal Cove State Park, approximately 5 km north of the city of Laguna Beach, 1.2 km inland from the coast 50 Comment
  RSA648197  Mimulus brevipes Karl Price 1988-5-21 54 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
  RSA681048  Mimulus brevipes Scott D. White, Michael Honer 2003-5-29 9433 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
  RSA790707  Mimulus brevipes R. H. McArthur 1934-4-28 16 Orange Trabuco and Ladd Canyons. PR8. Comment
  RSA17463  Mimulus cardinalis Percy C. Everett 1936-9-19 8271 Orange Silverado Canyon. 7/10 mi. eat of shadybrook resort. 701 Comment
  RSA769077  Mimulus guttatus Minor Warne 1934-04 s.n. Orange Laguna Hills Comment
  UCR109743  Mimulus guttatus T. W. Fisher, R. E. Orth 1964-7-1 s.n. Orange Peninsular Range; Santa Ana Mtns., San Juan Creek off the Ortega Hwy 500 Comment
  CDA41824  Mimulus puniceus Pope & Hill 1957-4-9 s.n. Orange Irvine Ranch. 0 Comment
  POM6462  Minuartia douglasii P. A. Munz, L. T. Street, G. Williams 1919-5-3 2615 Orange Santa Ana River Canyon. 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
  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
  RSA0026064  Mirabilis laevis Betty Smith 1932-4-22 s.n. Orange Peters Canyon. Comment
  CAS-BOT-BC434672  Mirabilis laevis var. crassifolia C. L. Hitchcock; C. V. Muhlick 1964-3-17 23061 Orange 8 miles e. of Yorba Linda, Santa Ana Canyon Comment
  RSA585058  Mirabilis laevis var. crassifolia D. Atwood 1993-3-27 17707 Orange Corona Del Mar State Park along Newport Coast Drive. 0 Comment
  RSA30448  Mirabilis linearis E. L. Paddock 1942-8-12 11295 Orange Stern Ranch, Yorba Linda, John Manassero Lease Comment
  RSA0010774  Mollugo verticillata L. R. Abrams 1901-06 1769 Orange Laguna Comment
  UCR17859  Monardella hypoleuca subsp. intermedia A. C. Sanders 1976-3-6 00407 Orange Peninsular Range; Santa Ana Mtns., Black Star Canyon 549 Comment
  RSA12738  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
  RSA539414  Monardella macrantha subsp. hallii Fred M. Roberts, Carol A. Roberts 1988-6-9 4090 Orange Santa Ana Mountains: Main Divide Truck Trail, Modjeska Pk. west slope, 1.1 km SW summit. 1542 Comment
  IRVC26422  Moraea bipartita Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3157 Orange UCI Arboretum Southern Coastal 15 Comment
  POM265765  Muhlenbergia microsperma J. C. Roos 2081 Orange East of San Juan Capistrano Comment
  RSA598923  Muhlenbergia microsperma Scott D. White 1997-3-28 4853 Orange Above Modjeska Canyon, proposed water tank site 425 Comment
  UCR2585  Muhlenbergia microsperma F. M. Reed 1922-4-30 4721 Orange Arch Beach 229 Comment
  UCSB52863  Muhlenbergia microsperma Marsh, G.; Marsh, K. 1981-5-24 Orange Lower Hot Springs Canyon, Lazy W camp, on K-9 trail; Santa Ana Mts Comment
  RSA0059070  Myoporum CNPS Accuracy Assessment Team 2014-7-9 9547 Orange Talbert Nature Preserve. Comment
  POM202029  Nama stenocarpa L. M. Booth 1932-7-1 1235 Orange Anaheim Marsh Comment
  UCR158038  Nama stenocarpa Adrian Wolf 1998-6-23 358 Orange South Coast, northernmost of the Laguna Lakes in Laguna Canyon, southern edge of lake on west side of Laguna Canyon Rd. 119 Comment
  CAS-BOT-BC259821  Nassella cernua LeRoy Abrams 1903-4-18 3268 Orange Capistrano Comment
  POM156462  Nassella cernua Le Roy Abrams 1903-4-18 3268 Orange Capistrano Comment
  CAS-BOT-BC259967  Nassella lepida Ira L. Wiggins 1966-3-2 20487 Orange Carbon Canyon about 1.5 miles above the dam Comment
  RSA70  Nassella lepida J. T. Howell 1927-6-9 65 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751328  Nassella lepida A. C. Sanders, Fred M. Roberts 2008-5-6 35264 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
  RSA91618  Nassella lepida F. W. Peirson 1923-3-25 5362 Orange Aliso Creek, near Laguna Beach. Comment
  SEINET6854814  Nassella lepida Fred M. Reed 1929-7-10 s.n. Orange Laguna Beach. Comment
  RSA542547  Nassella pulchra Fred M. Roberts 1988-2-9 3782 Orange Lomas De Santiago: Loma Ridge, 1.5km N Bee Survey Mark., UTM 373 3700m N, 435 200m E 385 Comment
  RSA548874  Nassella pulchra Fred M. Roberts, Dar A. Roberts 1989-3-22 4216 Orange Aliso-Wood Regional Park: Lower Wood Canyon, 3.6km SSE Moulton Peak. 38 Comment
  UCD87647  Nassella pulchra R. M. L. 1942-4-16 11 Orange 8 miles east of Santa Ana. El Toro Ranch. Comment
  RSA697463  Nasturtium officinale Effie Jessup s.n. Orange Irvine Hills. Comment
  UC1618099  Navarretia Donald G. Nelson 1935-7-15 296 Orange Costa Mesa, Tracy locality Costa Mesa; , Tracy locality Comment
  RSA780676  Nemacaulis denudata var. denudata Elizabeth A. Kempton 2006-5-5 304 Orange Roadside Pacific Coast Highway, near entrance to Bolsa Chica State Beach Ecological Park, outside of ecological boundary. 0 Comment
  RSA751161  Nemacladus ramosissimus D. E. Bramlet 2008-4-14 4177 Orange Ridgeline in Hicks Cyn. 99m NW of the haul Rd. & 331m N of the Asphalt plant 211 Comment
  RSA2081  Nemophila menziesii Carl B. Wolf 1931-3-6 1848 Orange Trabuco Canyon, 1 mile below Trabuco Camp Grounds, west slope of Snata ana Mts. 610 Comment
  RSA3166  Nemophila menziesii Carl B. Wolf 1932-3-8 2697 Orange Santiago Dam, W. base Santa Ana Mts. 305 Comment
  SEINET6971729  Nemophila menziesii Wanda P. Vestal, A. G. Vestal 1955-3-24 3457 Orange Trabuco Canyon, about 5 miles east of El Toro. Comment
  CAS-BOT-BC478169  Nephrolepis cordifolia R. E. Jr. Riefner 2014-6-14 14 -171 Orange City of Newport Beach, Cliff Drive Park, along Cliff Drive, near Beacon Street 44 Comment
  CAS-BOT-BC533010  Nephrolepis cordifolia R. E. Riefner, Jr. 2016-5-24 16 -155 Orange City of Laguna Niguel, Alicia Pkwy S of Seabird Way 96 Comment
  UCR266154  Nephrolepis cordifolia R. E. Riefner Jr. 2014-2-24 14- 64 Orange South Coast, city of Dana Point, west c. 0.1 mi from Island Way along Dana Point Harbor Drive, cliff slope immediately south of Santa Clara Avenue and Amber Lantern Street 11 Comment
  IRVC154  Nephrolepis exaltata var. bostoniensis L. Burns 1965-5-1 s.n. Orange Corona del Mar; Cameo Shores. Southern Coastal Comment
  RSA741478  Nerium oleander R. E. Riefner 2008-5-30 8 -124 Orange Near City of Orange, Santiago Creek, vicinity of Jackson Ranch Rd. , at Santiago Creek Rd., Irvine Ranch Reserve, Management Area 15. Comment
  CAS-BOT-BC231676  Nicotiana glauca Ira L. Wiggins 1965-11-6 20348 Orange Near Well No. 14, Kraemer Oil Estates near end of county road leading to Rancho Sanata Ana Comment
  HSC21283  Nicotiana glauca D. W. Snell 1964-3-24 10 Orange 1 mi. E of Brea, N of Birch St. 120 Comment
  RSA751791  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-7-3 35687 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
  UCR193777  Nicotiana glauca A. C. Sanders, Fred M. Roberts 2008-7-3 35687 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
  RSA0054918  Nicotiana glauca Thelma Shipe 1932-5-8 s.n. Orange Santa Ana Canyon. Comment
  SEINET12856155  Nicotiana quadrivalvis P. C. Everett 1935-1 7259 Orange 0.8 mile E. of Atwood, S side of RR tracks 107 Comment
  UC729955  Nitrophila occidentalis Carl B. Wolf 1932-6-28 3805 Orange edge of field on Bixby Ave. Bryant Ranch; E of SW corner of NW40 of NW160 91 Comment
  RSA263685  Nolina cismontana E. W. Lathrop 1976-6-28 7506 Orange 4 miles northeast of Lake Irvine, Black Star canyon, Cleveland Nat l Forest, Trabuco dist. Comment
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Jan 2 2008
  UCR209367  Nolina cismontana Fred M. Roberts, Linda Farley 2008-3-28 6832 Orange Santa Ana Mountains, Upper Weir Canyon, Irvine Ranch Conservancy, 3.3 km east-northeast of Robbers Peak on ridge north of canyon 427 Comment
  UC1931364  Nolina cismontana R. E. Riefner Jr. 2007-6-14 07 -256 Orange Santa Ana Mountains, Irvine Ranch Reserve, Fremont Canyon Conservation Easement, W Fork Fremont Canyon, Donaldson Ranch area. Comment
  UC501522  Nolina parryi Frank W. Peirson 1922-5-18 3026 Orange canyon heading e at river Santa Ana River 228 Comment
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Nov 26 2007
  UCSB47625  Nuttallanthus texanus Roberts, Fred 1980-4-3 Orange Hills, 1.0km NE Dana Hills High School; Dana Point 75 Comment
  RSA752093  Oenothera contorta Norland 1929-4-2 45 Orange Cypress Comment
  UCR237928  Oenothera elata Dick Newell, Don Millar 2012-6-5 273 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Creek streambed at Hangmans Tree Rd. crossing 361 Comment
  RSA1304  Oenothera elata subsp. hirsutissima J. T. Howell 1928-9-6 1205 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  POM225238  Oenothera elata subsp. hirsutissima P. A. Munz 1936-6-30 14171 -a Orange 5 miles south of Garden Grove. Comment
  RSA0029940  Oenothera speciosa Fred M. Roberts 2013-5-15 7772 Orange San Joaquin Hills: Buck Gully, north slope, Newport Beach, near Ocean Beach Drive, 1.8 km NW summit Pelican Hill. 122 Comment
  UCR246518  Oenothera speciosa Fred M. Roberts 2013-5-15 7772 Orange San Joaquin Hills, Buck Gully, north slope, Newport Beach, near Ocean Beach Drive, 1.8 km northwest of the summit of Pelican Hill 122 Comment
  OBI5681  Oenothera suffrutescens Carl B. Wolf 1932-7-2 3809 Orange 1.5 mi E of Brea on Cedar St 107 Comment
  UCD121989  Oldenlandia corymbosa G. D. Barbe 1973-8-9 1695 Orange Bordier's Nursery, 7231 Irvine Blvd., Santa Ana (Tustin). Comment
  UC729952  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch Comment
  CAS-BOT-BC427453  Oligomeris linifolia Carl B. Wolf 1932-6-28 3792 Orange Bryant Ranch, at the extreme SW. corner of the SW. 40 of the SE. 160 of sect. 27. T4S. R11W. 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
  OBI7084  Opuntia Walkington, Pinkava, G. Smith & McLeod, McLeod 1971-5-9 MGM 295 (=DLW470) Orange Orange, CA. down from saddle at E end of hill Comment
  POM279574A  Opuntia X occidentalis Lyman Benson 1950-4-29 14339 Orange South end of San Clemente. Hill 1/2 mile from ocean. 152 Comment
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Oct 21 2009
  RSA727266  Opuntia dejecta R. E. Riefner 2006-7-23 06 -312 Orange South Coast: Newport Beach (city), north shore of Upper Newport Bay, west c. 0.25 mi. from intersection of Bayview Way and Bayview Place 11 Comment
  SD212539  Opuntia dejecta R. E. Riefner Jr. 2006-7-23 06 312 Orange City of Newport Beach, Upper Newport Bay, North shore of Newport Bay, West circa 0.25 miles from intersection of Bayview Way and Bayview Place 10 Comment
  UCR187444  Opuntia dejecta R. E. Riefner Jr. 2006-7-23 06- 312 Orange South Coast, Newport Beach (city), north shore of Upper Newport Bay, west c. 0.25 mi. from intersection of Bayview Way and Bayview Place 11 Comment
  POM285345A  Opuntia littoralis Lyman Benson 1955-10-17 15600 Orange Moulton Ranch just west of the summit east of Laguna Beach. 152 Comment
  POM285352  Opuntia littoralis Lyman Benson 1955-10-17 15596 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
  UCR196298  Opuntia littoralis A. C. Sanders, T. B. Salvato 2008-5-13 35376 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  CAS-BOT-BC56866  Opuntia oricola B. D. Stark 1933-1-21 4520 Orange Field redacted by CAS, contact the data manager for more information 60 Comment
  UCR193274  Orobanche fasciculata A. C. Sanders, Fred M. Roberts 2008-6-17 35508 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, Windy Ridge Rd., saddle on ridge at head, above the Eastern Transportation Corridor 400 Comment
  RSA13172  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6693 Orange 1 mi. west of Atwood, Jack Johnson property. 152 Comment
  RSA15943  Orthocarpus purpurascens var. pallidus Percy C. Everett 1935-4-27 6692 Orange Bryant Ranch. NW corner Hansen Rd. and Bryant Ave. 30 Comment
  JEPS38558  Osmadenia tenella H. L. Mason 1926-4-25 Orange Laguna Comment
  UCR222414  Osmadenia tenella D. E. Bramlet 2008-4-15 4178 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon, 301 m east of Haul Road & 1.4 km north of Bee Canyon access road 206 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
  RSA782192  Osteospermum fruticosum Mark A. Elvin 2003-2-23 2315 Orange Irvine, San Joaquin Marsh along the berm of San Diego Creek 3 Comment
  UC484249  Oxalis albicans subsp. californica C. B. Wolf 1931-3-6 1858 Orange 1.5 mi below Trabaco Camp (Trabaco Canyon); Santa Ana Mtns, W slope 548 Comment
  UCSB3548  Oxalis californica Kamb, Peter 1948-6-19 Orange Holy Jim Canyon, Santa Ana Mtns. 609 Comment
  RSA0023268  Oxalis californica Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49785 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  UCR99085  Oxalis pes-caprae Scott D. White 1993-2-17 1052 Orange Vicinity of Olinda, near city of Brea, immediately north of Carbon Cyn Rd & east of Placentia Ave.; c. 1 mi. (airline) SSE of Tonner Cyn. 183 Comment
  POM353419  Oxalis wrightii F. R. Fosberg 1931-6-21 S 5097 Orange Silverado Canyon. Santa Anita Mts. Comment
  RSA761791  Oxytheca trilobata Robt. Allen 2003-6-22 12279 Orange Along North Main Divide Road, 6.3 road miles north of Falcon Group Campground, circa 2.43 air miles northwest of Los pinos Saddle. 1334 Comment
  RSA501314  Paeonia californica S. Zona, G. A. Allen, A. Liston, L. Rieseberg 1989-2-5 304 Orange San Juan Hot Springs along Ortega Hwy, alt 230m. 230 Comment
  RSA650648  Paeonia californica D. E. Bramlet 2000-4-7 2945 Orange This site is 30m south of the SCE maintenace road and 1km east of Weir Canyon. The locality is 1.5km west of Blind Canyon. 287 Comment
  SD247679  Paeonia californica R. F. Thorne, C. W. Tilforth, E. W. Lathrop 1977-4-27 49715 Orange Santa Ana Mountains: Bedrod Truck Trail, ca. 0.8 km below junction with Main Divide Truck Trail. Comment
  OBI82297  Pallenis maritima R. E. Riefner 2011-7-1 11 -86 Orange City of Newport Beach, rocky beach between Shorecliff Rd. and Cameo Shores Rd. 2 Comment
  OBI82302  Pallenis maritima Unknown 2012-5-25 12 -393 Orange City of Dana Point, rocky shore between Mussel Cove and Salt Creek Beach. Local, subshrubs in rock crevices along a calcareous seep and cobbles on the coastal strand. 3 Comment
  RSA0036015  Panicum capillare var. occidentale Robert F. Thorne 1977-11-21 50804 Orange Santa Ana Mountains: San Juan Canyon at San Juan Hot Springs Comment
  RSA724124  Panicum dichotomiflorum subsp. dichotomiflorum R. E. Riefner 2005-9-20 5 -674 Orange City of Huntington Beach, Huntington Central Park at Goldenwest St. 1 Comment
  CAS-BOT-BC422790  Papaver californicum P. C. Everett; E. R. Johnson 1935-5-29 7094 Orange Santa Ana Mts., head of Claymine Canyon 762 Comment
  RSA649680  Papaver californicum R. E. Riefner 2000-4-15 20 -375 Orange NCCP North Ranch Policy Plan Area. Along dirt road running N, but W of Black Star Cyn. Road at powerline tower. 520 Comment
  RSA759264  Papaver californicum Robt. Allen, D. Taylor 2008-5-9 s.n. Orange Silverado Canyon, 1.6 road miles EENE above Maple Springs Forest Gate, between Lost Woman Canyon and Spruce Canyon. 766 Comment
  RSA678504  Parapholis incurva Valerie L. Soza, Kenneth Clark, LeRoy Gross, Will Miller, Fred M. Roberts, Gary D. Wallace 2001-4-4 1119 Orange Anaheim Bay: Seal Beach U. S. Naval Weapons Station, southwestern edge of Seal Beach National Wildlife Refuge. 3 Comment
  RSA629715  Parapholis incurva L. C. Wheeler 1947-5-3 6475 Orange Newport Bay. Comment
  CAS-BOT-BC412827  Paspalum distichum R. F. Thorne; E. W. Lathrop; W. Wisura 1977-7-8 49568 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74) Comment
  RSA21040  Paspalum distichum E. R. Johnson 1938-8-22 9452 Orange Rancho Santa Ana, Santa Ana Canyon 122 Comment
  RSA91899  Paspalum distichum F. W. Peirson 1924-8-29 5096 Orange Road from Artesia to Hungtington Beach, along ditch Comment
  UC2061655  Paspalum pubiflorum R. E. Riefner Jr. 2007-12-2 07 -503 Orange City of Yorba Linda, Santa Ana Canyon, N bank of Santa Ana River, E of weir Canyon Rd., vicinity of La Palma Ave. and Mercado del Rio. Comment
  UCR204908  Paspalum vaginatum R. E. Riefner Jr. 2007-10-26 07- 461 Orange South Coast, city of Newport Beach, North Star Beach, north shore of Newport Bay near North Star Lane 9 Comment
  RSA0054893  Pectocarya linearis Keith E. Hoffmaster 1932-2-28 62 Orange Santa Ana Mts. Comment
  RSA2083  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
  UCSB57587  Pectocarya linearis subsp. ferocula Roberts, Fred 1984-2-15 Orange Casper's Regional Park: Rancho Carillo Rd.; 1.0 km. NE Visitor Center; 3.0 km. SW Lucas Survey Mark 150 Comment
  RSA0127410  Pectocarya linearis var. ferocula Fred M. Roberts 2016-3-17 8005 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  RSA220953  Pedicularis densiflora E. W. Lathrop 1966-4-6 6142 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  RSA710818  Pelargonium A. C. Sanders, Mark A. Elvin 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blve. and Campus Dr. 15 Comment
  UCD103490  Pelargonium A. C. Sanders 2003-10-12 27314 Orange Southern Coastal Slope: Irvine, UCI Arboretum, UCI campus near intersection of Jamboree Blvd. and Campus Dr. 15 Comment
  CDA25915  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal; UCI Arboretum Comment
  UCR159812  Pelargonium grossularioides Mark A. Elvin 2005-5-14 4314 Orange Southern Coastal, UCI Arboretum 15 Comment
  UCR218456  Pelargonium peltatum Robert DeRuff 1990-1 355 Orange South Coast, Upper Newport Bay, below Eastbluff 12 Comment
  IRVC3143  Pellaea andromedifolia var. andromedifolia A. S. Boughey 135 Orange [San Juan Canyon], Ortega Hwy, 1mi E San Juan Guard Sta. Santa Ana Mountains Comment
  RSA301972  Pellaea andromedifolia var. andromedifolia J. R. Shevock 1970-12-20 574 Orange Silverado Canyon 762 Comment
  CAS-BOT-BC71392  Pellaea mucronata Geo. L. Moxley 1927-5-1 s.n. Orange La Crescenta Comment
  POM17853  Pellaea mucronata var. mucronata P. A. Munz 1923-6-14 7065 Orange Glen Ivy Trail to Santiago Peak, Santa Ana Mountains 1127 Comment
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Apr 1 2013
  RSA660592  Pellaea mucronata var. mucronata R. E. Riefner, Adrian Wolf 2000-6-1 20 -452 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. USGS 7.5' Quad: Black Star Canyon. 518 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
  CDA2296  Pennisetum setaceum T. C. Fuller 1961-10-17 7156 Orange East side of Hwy. 101 Alt., opposite 2787 So. Pacific Coast Highway, Laguna Beach. 0 Comment
  RSA610216  Pennisetum setaceum Fred M. Roberts 1997-4-19 5013 Orange San Juan Canyon along San Juan Creek at CA. Rte. 74 bridge just east of San Juan Hot Springs, 0.8km SSE Juan Rancho Surbey Mark 240 Comment
  UCR227629  Penstemon grinnellii Robt. L. Allen 2003-6-22 12273 Orange Santa Ana Mountains, west-facing flank of Santiago Peak, along North Main Divide Road 1555 Comment
  NY601616  Penstemon heterophyllus var. australis F. W. Pennell 1949-6-29 26804 Orange Ortega Highway, above San Juan Capistrano. Comment
  UCR97636  Penstemon heterophyllus var. heterophyllus George K. Helmkamp, E. A. Helmkamp 1997-4-24 1647 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
  RSA16332  Penstemon spectabilis Percy C. Everett 1935-6-18 7203 Orange Santa Ana Mountains, Main Divide Motorway. 1 7/10 mi north of Los Pinos Potrero. 1128 Comment
  UCR241073  Penstemon spectabilis Dick Newell, Don Millar 2013-4-16 325 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon at Santiago Canyon wash, 300 ft. west of Santiago Canyon Rd. 361 Comment
  RSA401835  Penstemon spectabilis Christopher Davidson 1977-5-18 5604 Orange Santa Ana Mts. Cleveland Nat. Forest. Pleasants Peak (on Orange-Riverside Co. line). 1220 Comment
  CAS-BOT-BC330339  Pentachaeta aurea Le Roy Abrams 1901-6-13 1787 Orange San Joaquin Hills Comment
  CAS-BOT-BC330341  Pentachaeta aurea Le Roy Abrams 1903-4-17 3259 Orange Near El Toro Comment
  POM156456  Pentachaeta aurea L. R. Abrams 1903-4-17 3259 Orange Near El Toro Comment
  RSA687368  Pentagramma triangularis subsp. triangularis Albert J. Perkins 1913-3-6 s.n. Orange San Juan Hot Springs Comment
  LA210786  Pentagramma triangularis subsp. viscosa Lawrence L. Kiefer; 1963-11-17 1099 Orange Laguna Canyon, Laguna Beach, near road to Irvine, just back of the city. 60 Comment
  LA204536  Peritoma arborea A. M. Johnson; 1927-12-30 sn Orange Laguna 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
  RSA0014990  Phacelia brachyloba Fred M. Roberts 2008-5-20 6990 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
  UC672728  Phacelia brachyloba P. C. Everett 1935-7-11 7267 Orange Main Divide Santa Ana Mts., Main Divide (Main Divide Motorway at Horse Thief Canyon Trail sign) 1219 Comment
  RSA638969  Phacelia cicutaria var. hispida Valerie L. Soza, LeRoy Gross 1999-6-8 498 Orange Santa Ana Mountains: Santiago and Modjeska Canyons, above Tucker Wildlife Sanctuary, above the town of Modjeska 518 Comment
  UCR192068  Phacelia cicutaria var. hispida A. C. Sanders, Fred M. Roberts 2008-5-6 35244 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
  RSA603  Phacelia imbricata subsp. bernardina J. T. Howell 1928-5-12 965 Orange Between Aliso Canyon and Botany Garden. 366 Comment
  CAS-BOT-BC145041  Phacelia keckii Le Roy Abrams 1901-6-1 1839 Orange Santiago Peak Comment
  RSA699778  Phacelia minor Keith E. Hoffmaster 1935-4-14 s.n. Orange Live Oak can. Comment
  RSA734633  Phacelia minor A. C. Sanders, T. B. Salvato 2008-5-13 35363 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  RSA699146  Phacelia minor Minor Warne 1934-5-6 s.n. Orange Ortega Highway Comment
  POM49699  Phacelia parryi Helen D. Geis 1902-1 511 Orange Santiago Canyon, Orange County. Comment
  RSA699143  Phacelia parryi G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  UCR224402  Phacelia suaveolens subsp. keckii Robt. L. Allen, Reginald Durant 2008-5-16 s.n. Orange Santa Ana Mountains, along access road to Modjeska Peak, outside the sharp bend in the extreme north end of the road. Survey Point #47 1514 Comment
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Jul 21 2018
  POM202123  Phacelia tanacetifolia P. A. Munz 1934-3-26 13133 Orange Newport Beach. 12 Comment
  RSA610233  Phalaris lemmonii Fred M. Roberts, T. Bomkamp, R. Riefner 1996-4-19 4964 Orange Costa Mesa; Fairview Park, 0.1km W Canyon School 24 Comment
  CAS-BOT-BC250616  Phalaris minor Carl B. Wolf 1932-5-18 3636 Orange Rancho Santa Ana Botanic Garden, near East porch of administration bldg. 198 Comment
  JEPS111464  Phalaris minor J. B. Anderson 1966-4-22 603 Orange San Joaquin Hills: Along dirt road in Los Trancos Canyon Comment
  RSA734636  Phalaris minor A. C. Sanders, T. B. Salvato 2008-5-13 35367 Orange Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  SD220028  Phalaris minor Mark A. Elvin 2004-5-2 3422 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  RSA708439  Phalaris minor Mark Elvin 2004-5-2 3422 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
  IRVC21804  Phalaris paradoxa B. L. Parry, Fred M. Roberts 1985-5-21 141 Orange San joaquin Hills: Central Moro Cyn, Crystal Cove St Pk, 3.5km S of Signal Peak, 1.7km NE of El Morro Sch. Southern Coastal 20 Comment
  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
  POM3742  Pholistoma auritum D. L. Crawford 1916-07 s.n. Orange Laguna Beach region. Comment
  POM8746  Pholistoma auritum P. A. Munz, R. D. Harwood 1920-4-25 3725 Orange Santa Ana Mountains, Silverado Canyon. 549 Comment
  SBBG40426  Pholistoma auritum J. Ingram 1960-3-29 263 Orange 2 mi above O'Neill Park, Trabuco Cyn Comment
  LA205660  Pholistoma auritum var. auritum A. M. Johnson; 1934-4-15 4418 Orange Laguna Beach Comment
  SFV16190  Pholistoma auritum var. auritum R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 38 Orange Newport Beach, Upper Newport Bay on Back Bay Drive about 0.5 miles north of Shellmaker Island. Mesic roadside at base of coastal bluff adjacent to semi-disturbed coastal sage scrub area. Comment
  RSA750925  Phoradendron macrophyllum A. C. Sanders, Fred M. Roberts 2008-7-3 35699 Orange Weir Canyon, along Windy Ridge Rd. at wash crossing, 0.95 mi. SE of Walnut Canyon Reservoir 242 Comment
  UC1714568  Phyla lanceolata D. L. Crawford 1916-7-26 Orange Laguna Canyon; Laguna Beach Region, Laguna Canyon Comment
  RSA759260  Phyla nodiflora Robert Allen, Vicky Malton, Raul Murillo Jr. 2008-5-11 s.n. Orange Lomas de Santiago, Whiting Ranch Wilderness Park. Along Santiago Ranch Road. 436 Comment
  UC1974774  Phyllospadix torreyi Alison Kendall 2003-5-20 Orange Crystal Cove Comment
  CAS-BOT-BC452025  Phyllospadix torreyi I. M. Johnston 1915-9-3 s.n. Orange Laguna Beach Comment
  RSA0127409  Physalis crassifolia Fred M. Roberts 2016-5-25 8062 Orange Irvine: San Joaquin Hills, Turtle Rock Community, tributary to Shady Canyon, 1.2 km SE summit of French Hill between Alejo and Tradewind Roads. 107 Comment
  RSA597723  Physalis crassifolia D. Bramlet 1994-6-2 2380 Orange San Joaquin Hills. On ridgeline northwest of Laguna Canyon. The site is located 396m west of Laguna Canyon. Rd. and 305m north of Little Sycamore Canyon. Comment
  UC570695  Physalis crassifolia Herbert L. Mason 1926-4-25 2933 Orange 5 mi s of Laguna Comment
  IRVC872  Picris echioides D. DeVault 1965-5-1 Orange Corona del Mar, Carnation Street. Newport Beach Comment
  UCR195021  Picris echioides A. C. Sanders, Fred M. Roberts 2008-8-7 35993 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
  RSA610236  Pilularia americana Fred M. Roberts, Tony Bomkamp, Rick Riefner 1997-2-27 4978 Orange Costa Mesa: Fairview Park, 0.1 km W Canyon School. 24 Comment
  RSA655237  Pilularia americana D. E. Bramlet 1998-3-21 2579 Orange Fairview Park, City of Costa Mesa. The site is located some 366m N of the intersection of Wilson and Canyon Dr. and 152 m W of the Canyon School, on a mesa overlooking the Santa Ana River. 24 Comment
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Feb 26 2009
  MACF019826  Pinus attenuata T. Pringle 1966-5-20 124 Orange In Ranch Santa Ana, at the end of Orangethorpe Ave. Yorba Linda in full sun. Comment
  RSA12827  Pinus attenuata C. B. Wolf 1934-12-21 6260 Orange N.E. of Sugarloaf Peak (Pleasants Pk.), along Main St. Trail, Santa Ana Mts. Altitude 3800 ft.c. 1159 Comment
  RSA23668  Pinus attenuata C. B. Wolf 1939-1-20 9484 Orange Santa Ana Mts., N.W. of Pleasant's Pk. (Sugarloaf) along Main Divide Motorway; 1 3/10 mi. So. of summit, Skyline Dr. Ft. 1159 Comment
  MACF021903  Pinus attenuata Dale Schneeberger 1977-5-18 48 Orange 2 miles south of Pleasants Peak, Santa Ana Mtns. 1097 Comment
  SEINET7882517 Image available Pinus contorta Jean Coulson 1959-1 s.n. Orange Disneyland, Orange County, California. Located on small hill E. of castle, near house of tomarrow. Comment
  MACF029432  Pinus coulteri Robert L. Allen; Heather E. Wendel; Xanic J. Rondon; Laurie A. Clarke 2001-7-13 12242 Orange Santa Ana Range, San Juan Canyon, 3.7 road miles E of San Juan Guard Station following Ortega Hwy SR74. Lower San Juan Picnic Area, SW of region of main picnic area 443.7 Comment
  RSA796521  Pinus coulteri Robert F. Thorne, E. W. Lathrop 1977-5-18 49731 Orange Santa Ana Mountains: at head of Trabuco Canyon Trail Comment
  CDA38703  Pinus halepensis D. G. Kelch 2006-12-9 6 .553 Orange Newport Bay, Back Bay Dr. betweeen marsh and steep bluff. Comment
  UCR186587  Pinus halepensis Robert DeRuff 1995-9-24 240 Orange Southern Coast, Newport Beach, Newport Back Bay, Eastbluff 6 Comment
  IRVC2820  Pinus radiata Linda Stilgenbauer 1965-4-27 s.n. Orange Corona Del Mar: 339 Milford Drive. Southern Coastal Comment
  RSA550612  Piperia cooperi Fred M. Roberts, Carol A. Roberts 1989-4-20 4308 Orange Santa Ana Mountains: upper Lion Canyon along San Juan Trail just S of Blue Jay Campground, 2.5kilometers SE Los Pinos Peak. 1000 Comment
  SD154125  Piperia elongata Robert L. Allen, Christopher M. Barnhill 2004-1-10 12268 Orange Santa Ana Mtns,Trabuco Trail,ca. 0.7 trail miles(1127 m)NW of Los Pinos Saddle,middle of top I(c) of first switchback. In 10 m-long segment of trail, both sides & within 1 m of trail ctr;also below on trail switchback & down trail, decreasing in density. 1178 Comment
  RSA725506  Piptatherum miliaceum Fred M. Roberts 2007-9-11 6569 Orange Aliso Viejo: tributary to Aliso Creek on west side of Moulton Pkwy., 0.2 km N Aliso Viejo Pkwy., adj. to Kinder Care Learning Center. 83 Comment
  RSA756321  Pistacia chinensis A. C. Sanders, Fred M. Roberts, Jutta Burger 2009-10-21 37202 Orange 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
  CDA2639  Pistia stratiotes M. Nolan 1981-5-19 Orange Central Park Lake, Huntington Beach. 0 Comment
  RSA731637  Pittosporum undulatum Fred M. Roberts 2007-10-29 6618 Orange Niguel Hill: Laguna Niguel, Seaview Park, 1.3 km ENE Aliso Peak. 265 Comment
  SBBG15548  Plagiobothrys D. E. Breedlove 1962-3-9 1797 Orange St Hwy 74, 4.4 mi E of San Juan Capistrano 112 Comment
  RSA368943  Plagiobothrys collinus var. californicus Albert J. Perkins 1914-3-9 s.n. Orange Laguna Beach 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
  RSA542654  Plagiobothrys nothofulvus Fred M. Roberts 1988-4-10 3903 Orange Lomas De Santiago: Loma Ridge, Upper Limestone Canyon, c.a. 3.2 kilometer NNW Bolero Lookout. 347 Comment
  RSA588771  Plagiobothrys tenellus Fred M. Roberts, Carol A. Roberts, D. E. Bramlet 1990-5-6 4593 Orange Santa Ana Mnts.: Chiquito Basin, San Juan Trail, c.a. 2.5 km SSE Los Pinos Peak. 915 Comment
  JEPS57451  Plantago arenaria L. R. Heckard with T. I. Chuang and R. Bacigalupi 1968-7-16 2045 Orange North of Newport Beach, across U.S. Highway 101 From Huntington State Beach Comment
  POM8784  Plantago erecta P. A. Munz, R. D. Harwood 1920-4-24 3753 Orange Santa Ana Mts, Sierra [Freemont] Canyon 366 Comment
  RSA401950B  Plantago erecta Anstruther Davidson 1910-04 2475 Orange Corona Del Mar. Comment
  RSA450850  Plantago erecta Karlin G. Marsh 1978-3-16 s.n. Orange UCI Ecological Preserve: Hill #1. 58 Comment
  RSA749286  Plantago erecta Fred M. Roberts, Linda Farley 2008-3-28 6834 Orange Santa Ana Mtns.: Upper Weir Cyn., Irvine Ranch Conservancy, 3.3 km ENE Robbers Peak on ridge north of canyon. 427 Comment
  UC484111  Plantago erecta E. R. Johnson 1929-4-11 Orange Sierra Peak Trail Santa Ana Mts. Comment
  RSA401986A  Plantago erecta E. S. Spalding 1916-1 s.n. Orange Near Corona. Comment
  UCSB47575  Plantago erecta Roberts, Fred 1980-4-3 Orange 1.0km NE Dana Hills High School; Dana Point 75 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
  JEPS7123  Plantago lanceolata Lawrence M. Booth 1932-7-18 1266 Orange Costa Mesa Comment
  RSA730990  Plantago lanceolata Fred M. Roberts 2006-11-15 6464 Orange Santa Ana Cyn., 1.0 km ENE Imperial Hwy bridge, between La Palma Ave. and Santa Ana River near Big Springs St. 89 Comment
  UCR102035  Plantago major B. G. Pitzer 1997-4-15 3151 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
  UCR193825  Plantago major A. C. Sanders, Fred M. Roberts 2008-7-16 35839 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  UCR228811  Plantago major Dick Newell, Don Millar 2011-7-19 207 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs 392 Comment
  RSA698384  Plantago major R. H. McArthur 1934-4-14 s.n. Orange Forks of Laguna Canyon. Comment
  RSA760  Plantago ovata var. fastigiata J. T. Howell 1928-2-7 818 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA592105  Plantago virginica R. E. Riefner 1994-4-15 94 -324 Orange NE of cooks Reservoir, Dana Hills, City of Dana Point. Comment
  UCSB48123  Platanus racemosa Roberts, Fred 1981-4-11 Orange Highway 74; 5.2km E San Juan Capistrano, near crossing of San Juan Creek 52 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
  RSA722429  Platystemon californicus Stephen Bruff s.n. Orange Lemon Heights. Comment
  UCSB12591  Platystemon californicus Breedlove, Dennis 1962-3-9 Orange 4.4 miles east of San Juan Capistrano; on State 74 112 Comment
  UC2061642  Plecostachys serpyllifolia R. E. Riefner Jr. 2006-7-26 06 -319 Orange City of Irvine, N side of Irvine Blvd. at SR-133 on-ramp. Comment
  CDA34952  Plecostachys serpyllifolia R. E. Riefner Jr. 2009-7-18 09 -151 Orange Dana Point; beach near Salt Creek, vicinity of Ritz Carlton Resort. Comment
  RSA731529  Plecostachys serpyllifolia R. E. Riefner 2007-4-28 07 -190 Orange City of Newport Beach, Dover Beach, vicinity of Morning Star Ln. and Polaris Dr. 8 Comment
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Dec 13 2012
  RSA759269  Plectritis ciliosa Robert Allen, Reginald Durant, David Taylor 2008-4-11 s.n. Orange Maple Springs Saddle. Inside region of 180 degree bend in road. On small N-facing slope. 1363 Comment
  CAS-BOT-BC326616  Pluchea sericea John Thomas Howell 1927-7-24 2823 Orange Santa Ana River bottom, Santa Ana Canyon 152 Comment
  UC1070061  Pluchea sericea A. Lewis Mar 1934 333 Orange Santa Ana Canyon Corona Quad. 121 Comment
  RSA932  Pluchea sericea J. T. Howell 1927-7-21 456 Orange Santa Ana River, Rancho Santa Ana. 152 Comment
  IRVC1789  Poa annua I. L. Wiggins 1966-2-1 20405 Orange California State College, Fullerton; orange grove just E of Letters and Science Building. Southern Coastal Comment
  UCR193623  Poa annua A. C. Sanders, T. B. Salvato 2008-5-13 35357 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Santiago Canyon above (S of) mouth of Hangman Tree Canyon, just below Modjeska Canyon confluence 366 Comment
  PASA1247  Poa howellii Frank W. Peirson 1923-5-6 Orange ""Holy Jim"" trail to Santiago Peak 990 Comment
  SEINET10791987  Poa scabrella Robert F. Thorne, Earl W. Lathrop 1977-5-18 Thorne 49746 Orange Santa Ana Mountains, summit of Santiago Peak. 1733 Comment
  RSA751158  Poa secunda D. E. Bramlet 2008-4-1 4143 Orange Ridegeline in Upper Hicks Canyon, 136m S of the Haul Rd. 345 Comment
  IRVC21793  Polycarpon tetraphyllum B. S. Woolfolk 1985-5-12 1 Orange 325 Vista Baya Circle, Costa Mesa 23 Comment
  UCR158809  Polygala cornuta subsp. fishiae A. C. Sanders, Mark A. Elvin 2005-9-2 31611 Orange Santa Ana Mtns., upper Holy Jim Canyon, a major tributary of Trabuco Canyon, along the trail in the switchbacks 970 Comment
  CAS-BOT-BC402184  Polygala cornuta var. fishiae R. 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
  RSA698416  Polygala cornuta var. fishiae Unspecified 1934-05 s.n. Orange Ladd Canyon. 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
  CAS-BOT-BC413753  Polygonum argyrocoleon Carl B. Wolf 1932-9-13 4038 Orange Bryant Ranch: North boundary between Flood Control dike & well in S.E.1/4 Sect. 25; about 1300 ft. W. of N.E. corner of S.E.1/4 Sect. 25 T4S R12W 6 Comment
  POM201772  Polygonum argyrocoleon L. M. Booth 1932-7-25 s.n. Orange Santa Ana River 2 miles from ocean. Comment
  CLARK-A1528-919  Polygonum aviculare Patricia A. Andrews 1975-6-26 5916 Orange Capistrano Bay Beach 9 Comment
  RSA749041  Polygonum aviculare A. C. Sanders, Fred M. Roberts 2008-8-7 35972 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR158163  Polygonum aviculare Adrian Wolf 1998-5-15 271 Orange South Coast, Lambert Reservoir, north of El Toro Marine Corps Air Station 134 Comment
  UCR170138  Polygonum aviculare Jeffrey Ross, R. Zaka 1998-5-2 40 Orange South Coast, North side of San Joaquin Hills; William R. Mason Regional Park, near intersection of Yale Avenue and University Drive 27 Comment
  UCR46714  Polygonum aviculare B. G. Pitzer, D. C. Hawks 1986-12-17 0380 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, on Santiago Cyn Rd., c. 1.0 mi SW of [Irvine Lake] Santiago Reservoir 305 Comment
  RSA0054921  Polygonum aviculare Keith E. Hoffmaster 1926-12-18 490 Orange Santa Ana. Comment
  RSA5604  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-6-20 3755 Orange Common around the administration Blds, Rancho Santa Ana Botanic Garden. 198 Comment
  RSA5970  Polygonum aviculare subsp. aviculare Carl B. Wolf 1932-9-13 4043 Orange Bryant Ranch, No. boundary between San Gabriel River Flood Control Dike and Well. 6 Comment
  RSA683223  Polygonum hydropiperoides Scott D. White, Matt Carlton 2003-11-20 9868 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (Dana Point) 24 Comment
  RSA683226  Polygonum lapathifolium Scott D. White, Matt Carlton 2003-11-20 9869 Orange Santa Ana Mountain foothills; San Juan Creek in San Juan Capistrano; (San Juan Capistrano). 24 Comment
  RSA717156  Polygonum lapathifolium Fred M. Roberts, Chris M. Barnhill 2005-9-27 6274 Orange San Juan Capistrano: San Juan Creek wash, east of La Novia Road bridge, 1.4 km E Mission San Juan Capistrano. 27 Comment
  UC536916  Polygonum lapathifolium Lawrence M. Booth 1932-6-28 1221 Orange Bolsas Marsh Comment
  RSA0062672  Polypodiaceae Doug Bell 1949-2-5 s.n. Orange Newport Beach. 6 Comment
  RSA689945  Polypodium californicum M. B. Dunkle 1935-2-23 4340 Orange Dana Point. 9 Comment
  RSA85051  Polypodium californicum F. W. Peirson 1919-11-8 1516 Orange South of Arch Beach, near Laguna Beach Comment
  UCSB62759  Polypodium californicum Kiefer, Lawrence 1963-11-17 Orange Santa Ana Mtns., Trabuco Canyon, vicinity of the public camps, upper part of canyon 762 Comment
  CSUSB466  Polypogon monspeliensis John S. Davis 1972-5-6 720506 3 Orange Newport Beach; 1.1 miles north from corner of San Jaquin Hills road and Back Bay road; beneath road bridge, along creek bed leading to marsh Comment
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Oct 7 2013
  IRVC14815  Polypogon monspeliensis A. S. Boughey 1968-7-9 399 Orange Upper Santiago Canyon. Santa Ana Mountains Comment
  SD220029  Polypogon monspeliensis Mark A. Elvin 2004-5-2 3416 Orange Irvine: San Joaquin Freshwater Marsh, near Campus and University Drs., 1.7 km (air) NNW UC Irvine campus center. 3 Comment
  UCR193927  Polypogon monspeliensis A. C. Sanders, Fred M. Roberts 2008-7-16 35842 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Dripping Springs off Limestone Canyon, c. 7.5 mi. ESE of Tustin 391 Comment
  RSA696614  Polypogon monspeliensis Rankin s.n. Orange Costa Mesa. Comment
  CAS-BOT-BC237508  Polypogon viridis Ira L. Wiggins 1965-11-6 20337 Orange Near railway right of way, W side of Atwood Comment
  POM202525  Polypogon viridis L. M. Booth 1932-6-7 1163 Orange Newport Lagoon. Comment
  RSA735748  Polypogon viridis A. C. Sanders, Fred M. Roberts 2008-6-17 35494 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
  SEINET182351 Image available Polypogon viridis Lawrence M. Booth 1932-6-7 1163 Orange Newprt Lagoon. Comment
  RSA679095  Polystichum imbricans subsp. curtum Fred M. Roberts 2003-6-25 5950 Orange Santiago peak, north slopes along ridge east of Main Divide truck trail, 0.6km NNW summit. 1605 Comment
  RSA132  Populus X parryi J. T. Howell 1928-2-26 860 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  IRVC28638  Populus balsamifera subsp. trichocarpa Mark A. Elvin, A. C. Sanders 2005-9-2 4493 Orange Mouth of Lion Cyn, just up stream from Lower San Juan Campground. Santa Ana Mtns 457 Comment
  UCR113446  Populus balsamifera subsp. trichocarpa R. E. Riefner Jr., Adrian Wolf 2000-6-24 20- 116 Orange Peninsular Range, Santa Ana Mountains, North Ranch Policy Plan Area, Fremont Canyon, N. of Santiago Creek & immediately N. of major stream fork 305 Comment
  RSA581439  Populus trichocarpa Fred M. Roberts Jr., Gordon Marsh 1989-5-12 4358 Orange Santiago Canyon, Flemming Regional Park, just E of Modjeska at end of paved road, ca. 3.0 km WSW Laurel Springs. 436 Comment
  RSA603349  Populus trichocarpa Scott D. White, B. Leatherman 1997-6-12 5327 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. 46 Comment
  RSA797914  Potentilla glandulosa subsp. glandulosa Robert F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49824 Orange Santa Ana Mountains: Trabuco Canyon. Comment
  RSA708440  Prosopis glandulosa var. torreyana Mark Elvin 2004-5-2 3419 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
  SD233356  Prunus avium R. F. Thorne, E. W. Lathrop, G. Marshs 1977-5-4 49828 Orange Santa Ana Mountains; Trabuco Canyon, ca. 8 km east of Trabuco Oaks. Deserted orchard. Comment
  UCR106274  Prunus caroliniana B. G. Pitzer, M. Georgiady 1997-4-5 3078 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
  RSA5316  Prunus ilicifolia B. D. Stark 1933-1-5 4499 Orange 2 mi. so. of summit of skyline Drive on road along ridge to Santiago Peak. Santa Ana Mts. 1067 Comment
  CAS-BOT-BC300504  Prunus ilicifolia subsp. lyonii O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon: Santa Ana River on the west side of Featherly Park 110 Comment
  LA208147  Prunus ilicifolia subsp. lyonii Donald Lee Johnson; 1965-1 208147 Orange San Clemente Island, Reservoir Canyon Comment
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Jan 29 2015
  POM202175  Pseudognaphalium biolettii L. M. Booth 1932-5-19 1067 Orange Newport Bay Comment
  RSA747633  Pseudognaphalium biolettii Fred M. Roberts 2008-5-16 6980 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
  RSA450841  Pseudognaphalium biolettii J. P. Anderson 1966-3-11 430 Orange San Joaquin Hills, along road to Signal Peak, above Lower Coyote Canyon Comment
  UCD135053  Pseudognaphalium biolettii R. Townsend 1939-12-29 164 Orange Lower Telegraph Canyon. Comment
  UCR281584  Pseudognaphalium canescens subsp. microcephalum Mitch Provance 2017-6-9 617- 97 Orange Coyote Hills, North Fullerton, East side of Gilbert St., 0.5 miles ENE of intersection with Castlewood Dr. 124 Comment
  RSA737237  Pseudognaphalium leucocephalum R. E. Riefner 2007-9-11 07 -379 Orange City of San Juan Capistrano, vicinity of San Juan Creek road and Paseo Christina. 34 Comment
  UCR222661  Pseudognaphalium leucocephalum R. E. Riefner Jr. 2008-8-5 08- 259 Orange Peninsular Range; Santa Ana Mtns., Irvine Ranch Reserve, Fremont Canyon Conservation Easement, lower Fremont Canyon, main drainage 223 Comment
  UCR238214  Psilocarphus brevissimus Mark A. Elvin 2003-3-30 2386 Orange South Coast, north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73 69 Comment
  RSA0088602  Psilotum nudum R. E. Riefner Jr. 2015-11-22 15 -453 Orange City of Costa Mesa, E side of Orange County Fairground, Lot #A-5, W of Newport Blvd. and N of Fair Drive. 32 Comment
  UCR282159  Psilotum nudum R. E. Riefner Jr. 2017-1-15 17- 36 Orange South Coast, city of Newport Beach, Polaris Drive, south of Evening Star Drive, Westcliff Park, north side of Newport Bay 3 Comment
  UC572669 Image available Ptelea crenulata W. G. Watkins 1937-2-1 5 Orange Santiago Canyon Comment
  RSA733702  Pteridium aquilinum Minor Warne 1934-4-28 s.n. Orange Ladd Canyon-Santa Ana Mts Comment
  UCR174219  Pteridium aquilinum A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33034 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
  RSA788925  Pteridium aquilinum var. pubescens Fred M. Roberts 1999-5-17 5229 Orange Lomas de Santiago: Loma Ridge, Upper Round Canyon, west of Reservoir dam 482 Comment
  UCR194553  Pterostegia drymarioides A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35324 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
  UCSB48050  Pterostegia drymarioides Fritzke, Sue; Roberts, Fred 1982-4-3 Orange Dana Point Headlands: north of Dana Strand Road, 0.5km W Dana Point Harbor; 0.8km SSW Richard Henry Dana School 80 Comment
  RSA407877  Pulicaria hispanica Walter Wisura, B. Busenberg 1987-7-23 4170 Orange Newport Bay at jctn. of Back Bay Drive and San Joaquin Hills Road. Comment
  RSA591804  Pulicaria hispanica P. H. Raven 1961-10-15 16857 Orange Dyke along road to Yorba Linda just north of US Hwy 91 114 Comment
  CDA7617  Pulicaria paludosa Robert L. Pope 1959-8-14 Orange Ray Miller property, Santa Ana Canyon, east of Fullerton. 0 Comment
  IRVC29828  Pulicaria paludosa Tom McCrainie, Mark A. Elvin 2006-9-23 2 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
  RSA616052  Pulicaria paludosa Scott D. White, Peter Bowler 1997-11-20 6021 Orange University of California Irvine Campus: East of main campus. 46 Comment
  UCR174206  Pulicaria paludosa A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33059 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
  UCR192974  Pulicaria paludosa A. C. Sanders, Fred M. Roberts 2008-6-17 35463 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Loma Ridge on Hicks Canyon Haul Road, c. midway between Foothill Transportation Corridor and Santiago Cyn. Rd. 335 Comment
  RSA539419  Pulicaria paludosa Fred M. Roberts, Doug Willick 1988-9-16 4137 Orange Peralata Hills: Oak Canyon Nature Center, Upper Walnut Canyon, 1.0 kilmeter N Robbers Peak. 180 Comment
  UCR84428  Pycnanthemum californicum Steve Boyd, T. S. Ross 1994-9-14 8351 Orange Santa Ana Mountains, San Mateo Canyon Wilderness Area of the Cleveland National Forest, Lucas Canyon trail at stream crossing in Lucas Canyon. 311 Comment
  CAS-BOT-BC61812  Quercus agrifolia C. B. Wolf 1931-3-6 1832 Orange 1.5 miles below Trabuco Oaks along Trabuco Canyon road, west slope Santa Ana Mts. 304 Comment
  IRVC1323  Quercus agrifolia Gail Howard 1965-5-2 s.n. Orange Newport Beach: Back Bay Hills. Southern Coastal Comment
  RSA697623  Quercus agrifolia R. H. McArthur 1934-3-10 s.n. Orange Santiago Canyon. Canyon bottom. Comment
  UCR174210  Quercus agrifolia A. C. Sanders, Fred M. Roberts, Michelle Balk 2006-7-20 33044 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
  IRVC16619  Quercus berberidifolia Gordon A. Marsh, Karlin G. Marsh 1977-9-1 s.n. Orange Mission Viejo: Jeronimo Springs. Southern Coastal Comment
  RSA0042530  Quercus berberidifolia Fred M. Roberts 2013-5-30 7779 Orange Lomas de Santiago: Santiago Creek wash, at Santiago Canyon Road bridge (south side), 0.3km W jct. Silverado and Santiago Canyon Roads. 299 Comment
  RSA649061  Quercus berberidifolia D. E. Bramlet 2000-4-13 2980 Orange Upper east Blind Canyon. The site is 30m south of the Blind Cyn. access road and beneath SCE transmission lines. The locaity is 854m northwest of the Fremont Cyn. ridge road. Comment
  UCR193768  Quercus berberidifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35678 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, off Windy Ridge Rd. below saddle on ridge above the Eastern Transportation Corridor 415 Comment
  IRVC29765  Quercus chrysolepis Barry S. Nerhus, Mark A. Elvin 2006-11-4 6 Orange Huntington Beach, Bolsa Chica Wetlands, SW portion of Reserve beside Pacific Coast Highway. Southern Coastal 0 Comment
  RSA638960  Quercus chrysolepis Valerie L. Soza, LeRoy Gross 1999-6-7 485 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  UCD63655  Quercus dumosa Daniel Sanchez-Mata 2006-7-1 s.n. Orange Laguna Niguel. Dana Point Highlands. Pacific Island Drive. 70 Comment
  RSA649690  Quercus engelmannii R. E. Riefner Jr. 2000-6-1 20 -453 Orange NCCP North Ranch Policy Plan Area. N of Irvine Lake and W of Black Star Cyn; W. of dirt access rd. 473 Comment
  IRVC19902  Quercus lobata Gordon A. Marsh, Karlin G. Marsh 1983-7-15 s.n. Orange San Joaquin Hills, Upper Shady Canyon. Southern Coastal Comment
  SEINET7249074  Quercus suber R. E. Riefner Jr. 2014-1 14 -89 Orange City of Yorba Linda, Yorba Linda Regional Park along East La Palma Ave., W of Yorba Linda Blvd; Parking Low #7. 92 Comment
  IRVC16134  Quercus wislizeni var. frutescens R. Meinzer, T. Mulroy 1971-4-25 s.n. Orange Santa Ana Mountains: Upper Trabuco Canyon. Peninsular Ranges 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
  POM303771  Ranunculus californicus Lyman Benson 1947-4-27 12338 Orange Carbon Canyon. Chino-Puente Hills; Pacific Slope Drainage Area. 244 Comment
  JEPS55026  Ranunculus californicus Alice King 1908-3-9 Orange South Main Street Santa Ana Comment
  RSA734146  Ranunculus californicus R. H. McArthur 1934-3-3 s.n. Orange Forks of laguna Canyon Comment
  RSA0030882  Ranunculus cymbalaria subsp. saximontanus Helen D. Gris 1902-04 s.n. Orange Unspecified. Comment
  HSC92525  Raphanus raphanistrum D. Atwood 1993-3-29 17737 Orange Huntington Beach along Beach Blvd., 0.5 mi. N of the beach Comment
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Jul 14 2012
  RSA585061  Raphanus raphanistrum D. Atwood 1993-3-29 17737 Orange Huntington Beach along Beach Blvd, 1/2 miles N of the Beach, Comment
  UCR186423  Rauvolfia samarensis Robert DeRuff 1996-4-28 492 Orange Southern Coast, Newport Beach, Newport Back Bay, along Backbay Dr., 0.6 mi. north of Big Canyon 2 Comment
  UCR126264  Rhamnus alaternus Roger E. Reinke 2003-2-18 s.n. Orange South Coast, Newport Back Bay, Big Canyon 30 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-BC56038  Rhamnus ilicifolia C. B. Wolf 1931-3-6 1841 Orange 1/2 mile above Trabuco Oaks, Trabuco Canyon, west slope Santa Ana Mts. 457 Comment
  JEPS42046  Rhamnus ilicifolia John Thomas Howell 1927-7-22 2824 Orange Claymine Canyon Santa Ana Mts. 182 Comment
  POM246501  Rhamnus ilicifolia Carl B. Wolf 1933-11-3 5531 Orange Silverado Canyon at base of Silverado motorway. Upper Sonoran. 732 Comment
  RSA1699  Rhamnus ilicifolia Carl B. Wolf 1931-3-6 1838 Orange Trabuco canyon, 1/2 mile above Trabuco Oaks, west slope of Santa Ana Mountains. 457 Comment
  SBBG27250  Rhamnus ilicifolia C. B. Wolf, E. R. Johnson 1933-11-3 Orange Silverado Cyn at base of Silverado Motorway 731 Comment
  SD236398  Rhamnus ilicifolia A. C. Sanders, Fred M. Roberts, Amber ONeal, D. E. Bramlet 2008-5-9 35297 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, along old dirt road, c. 1.25 mi. ESE of Walnut Cyn Reservoir. 340 Comment
  UC592699  Rhamnus ilicifolia P. C. Everett 1935-6-19 Orange 2 mi below Forest Service Patrol Station; Santa Ana Mts., Trabuco Canyon 365 Comment
  IRVC27932  Rhus glauca A. C. Sanders, Mark A. Elvin 2003-10-12 27327 Orange Irvine; UCI Arboretum, UCI campus near intersection of Jamboree Blvd and Campus Dr. Southern Coastal 15 Comment
  CAS-BOT-BC167878  Rhus integrifolia John Thomas Howell 1927-7-29 2870 Orange North side of Santa Ana [Canon] Canyon 243 Comment
  CAS-BOT-BC167922  Rhus integrifolia C. B. Wolf 1931-3-6 1857 Orange 1 1/2 miles below Trabuco Camp Ground, Trabuco Canyon, west slope Santa Ana Mts. 548 Comment
  RSA451  Rhus integrifolia J. T. Howell 1927-6-16 147 Orange Botany Garden, Rancho Santa Ana. 152 Comment
  RSA751419  Rhus integrifolia A. C. Sanders, Fred M. Roberts 2008-7-3 35693 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
  SFV16185  Rhus integrifolia R. K. Stachelek, B. Anderson, F. Schropshire 1995-3-1 36 Orange Newport Beach, west side of Upper Newport Bay adjacent to Santa Ana Delhi channel. About 100 m west of footbridge. Comment
  UCD170237  Rhus integrifolia K. M. Meyer; A. Townesmith 2007-3-10 8 Orange Cleveland National Forest, 3 mi. N of Main Divide Rd./NF3S04, off Hwy. 74. 950 Comment
  UCR98235  Rhus laurina B. G. Pitzer 1997-4-15 3142 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
  RSA696222  Rhus ovata Anonymous 1931-1-1 s.n. Orange Santa Ana Mts Comment
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Sep 23 2013
  OBI20443  Rhus ovata Elisabeth Norland 1941-11-5 11185 Orange Nursery Lahthouse in falt 732 Comment
  RSA5405  Rhus trilobata var. pilosissima B. D. Stark 1932-12-15 4448 Orange Rancho Santa Ana 144 Comment
  UCR79243  Ribes californicum var. hesperium Steve Boyd, T. S. Ross 1992-5-20 7460 Orange Southern Santa Ana Mtns, San Mateo Canyon Wilderness Area: Western edge of the wilderness in Lucas Canyon along canyon floor from crossing of Lucas Canyon Trail, upstream 0.25 mi to spur trail leading to old mining habitations in side canyon. 412 Comment
  CAS-BOT-BC173125  Ribes indecorum B. D. Stark 1930-2-21 1475 Orange Black Star Creek 457 Comment
  RSA16346  Ribes indecorum Percy C. Everett 1935-6-18 7187 Orange Santa Ana Mts., Main Divide Motorway to Santiago Pk., 1 mi. from Ortega Highway. 732 Comment
  UC1127273  Ribes malvaceum R. St. John 1931-2-13 191 Orange 1 mi w Plot 100 Elsinore Trabuco Canyon; Elsinore Quadrangle 1066 Comment
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Nov 27 2011
  RSA0029942  Ribes malvaceum var. malvaceum Fred M. Roberts, Sandy Leatherman 2013-2-13 7722 Orange Santa Ana Mountains: Ridge south of central Santiago Canyon, near Joplin Trail, 3.7 km SE Modjeska (town). 800 Comment
  RSA3132  Ribes malvaceum var. viridifolium B. D. Stark 1932-2-22 2662 Orange Canyon W of Roundtop, Rancho Santa Ana. 457 Comment
  RSA441471  Ribes malvaceum var. viridifolium E. Crow 1929-2-22 213 Orange Gypsum Canyon, Santa Ana Mountains. Near Corona. Comment
  UCR222393  Ribes malvaceum var. viridifolium Mark A. Elvin, Laura Soloro, Adam Sriro 2003-1-10 2219 Orange Peninsular Range; Santa Ana Mtns., c. 1.6 mi. west of Sierra Peak along road to powerlines, near Claymont Clay Mine 457 Comment
  CHSC116481  Ribes malvaceum var. viridifolium R. F. Thorne; C. W. Tilforth, E. W. Lathrop 1977-4-27 49706 Orange Northern Santa Ana Mountains: Sierra Peak. 899 Comment
  RSA0018257  Ribes roezlii F. W. Peirson 1923-5-6 3497 Orange On trail from Trabuco Canyon to Santiago Peak, Santa Ana Mountains. 1646 Comment
  RSA0018259  Ribes roezlii Carl B. Wolf 1933-8-24 5395 Orange Summit of Santiago Peak, Santa Ana Mountains. 1707 Comment
  SD255195  Ribes roezlii R. F. Thorne, E. W. Lathrop 1977-5-18 49739 Orange Santa Ana Mountains: summit of Santiago Peak. 1733 Comment
  RSA354  Ribes speciosum J. T. Howell 1927-6-24 205 Orange Aliso Canyon, Rancho Santa Ana. 274 Comment
  RSA40800  Ribes speciosum G. R. Campbell 1949-3-4 12816 Orange Claymine Canyon, Santa Ana Mts. Comment
  RSA733954  Ribes speciosum Unspecified 1934-2-11 s.n. Orange Black Star Canyon Rd. 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
  RSA749353  Ricinus communis Fred M. Roberts 2008-4-15 6902 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
  RSA648947  Ricinus communis Mark Breidenbaugh, Caralisa Breidenbaugh 1992-5-15 24 Orange 1/2 mile south of Chino Hills State Park. 167 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
  RSA446200  Romneya coulteri F. R. Fosberg 1931-6-21 85094 Orange Lower Santiago Canyon. Comment
  RSA722424  Romneya coulteri G. Gentges 1932-5-8 s.n. Orange Silverado Canyon Wash. Comment
  RSA739082  Romneya coulteri Keith E. Hoffmaster 1932-4-17 471 Orange Santa Ana Mts. [Orange/Riverside Cos] Comment
  SBBG95105  Romneya coulteri S. D. White 1990-7-17 Orange Coal Cyn, ca. 1 mi S of the mouth of the Cyn near the Cyn bottom 274 Comment
  UCR150611  Romneya coulteri Scott D. White 1997-5-6 5035 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago; Santiago Canyon, c. 1.5 mi N of Modjeska Canyon 366 Comment
  CAS-BOT-BC92180  Romneya coulteri var. coulteri Helen D. Geis 1902-5-1 s.n. Orange Santa Ana River Canon [Canyon]. Comment
  JEPS53864  Rorippa palustris Alice King May 1908 Orange grounds of Shooting Club near Garden Grove; near Garden Grove Comment
  RSA375  Rosa californica J. T. Howell 1927-6-6 s.n. Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  POM2665  Rosa californica I. M. Johnston 1918-9-3 2140 Orange San Joaquin Hills. Laguna Canyon. upper end of the 90 degree curve in the road 76 Comment
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Jun 23 2015
  VVC457  Rubus ursinus F. Ambrey 1959-5-4 s.n. Orange Santa Ana Mtns., 0.8 mi W of pavement end in Silverado Cyn. 649 Comment
  UCSC000946  Rubus ursinus Peter Kamb 1948-6-19 1089 Orange Santa Ana Mts., Holy Jim Canyon 610 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
  CAS-BOT-BC421796  Rumex conglomeratus Carl B. Wolf 1932-6-13 3718 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  JEPS39877  Rumex crispus Lawrence M. Booth 1932-5-12 1051 Orange Newport Bay Comment
  UC1292604  Rumex crispus C. L. Hitchcock and C. V. Muhlick 1964-3-17 23072 Orange 8 mi e Yorba Linda; Santa Ana Canyon Comment
  UCR102022  Rumex crispus B. G. Pitzer 1997-3-25 3013 Orange San Joaquin Hills, Crystal Cove State Park, Pelican Point Area, grassland between Pacific Coast Hwy and the bike trail 30 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
  RSA466284B  Rumex crispus M. B. Dunkle 1933-4-9 3289 Orange Dana Point. 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
  RSA650638  Rumex hymenosepalus Daniel Truong 1991-5-13 32 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  SBBG128391  Rumex obtusifolius A. C. Sanders, F. M. Roberts 2008-7-7 36004 Orange Weir Cyn at powerline crossing, 1.0 mi (air) SSE of Walnut Cyn Reservoir; Santa Ana Mtns 226 Comment
  POM201765  Rumex salicifolius L. M. Booth 1932-7-4 s.n. Orange Newport Lagoon. Comment
  RSA542460  Rumex salicifolius Fred M. Roberts 1988-4-14 3925 Orange IRVINE: south of the San Diego Freeway, 1.2 km. ENE French Hill. 41 Comment
  RSA512756  Rupertia physodes Walter Wisura, Bart O'Brien, M. Durant 1990-6-12 4447 Orange Along forest rd. 3SO4 fr. 2.15 miles Ortega Hwy. to Santiago Peak. Comment
  SD80939  Ruppia maritima James Henrickson 1970-7-24 5023 Orange 3 miles NW of Huntington Beach; along margins, beach in shallow water of Inner Bolsa Bay Comment
  POM186242  Salicornia bigelovii Joseph A. Ewan 1932-7-29 7714 Orange Newport Lagoon, on road around hills to Costa Mesa. Comment
  UCR143513  Salicornia bigelovii David Michener 1934-8-1 s.n. Orange Southern Coast, Newport Bay, near north end of bridge connecting Balboa Island with mainland 3 Comment
  POM707  Salicornia virginica D. L. Crawford 739 Orange Beach, Laguna Beach region. Comment
  RSA232235  Salicornia virginica James Henrickson 1970-7-25 5036 Orange 3.5 miles NW of Huntington Beach on sandy margin of Bolsa Bay, 1/4 mile SE of Warner Ave. along PCH; at sea level. 0 Comment
  RSA478898  Salicornia virginica F. R. Fosberg 1930-7-10 S 3983 Orange Anaheim Landing. [Los Angeles Co. on label] 1 Comment
  RSA768501  Salicornia virginica Justin M. Wood 2009-12-1 1392 Orange Santa Ana River: marsh just upstream of Pacific Coast Highway. 0 Comment
  UC455214  Salicornia virginica I. J. Condit 1908-7-20 Orange Los Alamitos Comment
  UCR108429  Salicornia virginica L. C. Wheeler 1946-9-28 6384 Orange Newport Bay, Newport Bay 5 Comment
  RSA751524  Salix exigua A. C. Sanders, Fred M. Roberts 2008-8-7 35988 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  LA208637  Salix exigua var. hindsiana Carl B. Wolf; 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave, 1 km W of Hansen Rd, near town of Los Alamitos 2 Comment
  LA208643  Salix exigua var. hindsiana Carl B. Wolf; 1932-4-15 2953 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, S of pear orchard, in Botanic Garden 120.0 Comment
  SD1027  Salix exigua var. hindsiana Carl B. Wolf 1932-7-7 3845 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Road, near town of Los Alamitos 7 Comment
  CAS-BOT-BC6083  Salix gooddingii LeRoy Abrams 1903-4-16 3256 Orange Santa Ana River between Fullerton and Orange Comment
  HSC19941  Salix gooddingii J. W. Johnson 1961-3-29 Orange Newport Beach, S side of upper Newport Bay Comment
  IRVC29700  Salix gooddingii Mark A. Elvin, Barry S. Nerhus 2006-11-4 5241 Orange Huntington Beach; 1.5 km SW of Wintersburg, SW of jct Slater and Goldenwest; Shipley Nature Center. Southern Coastal 1 Comment
  RSA138  Salix gooddingii J. T. Howell 1927-6-6 40 Orange Santa Ana River bottom, Rancho Santa Ana. 152 Comment
  RSA542354  Salix gooddingii Fred M. Roberts Jr., Gordon Marsh 1987-8-31 3603 Orange Santa Ana River: adjacent to Santa Ana, 0.5 km NE 17th St. bridge. 27 Comment
  UCR239842  Salix gooddingii O. F. Clarke 2004-3-22 s.n. Orange Santa Ana River Canyon, Santa Ana River on the west side of Featherly Park 110 Comment
  PASA2678  Salix hindsiana var. leucodendroides Carl B. Wolf 1932-7-7 3843 Orange Rancho Santa Ana, along ditch on Bixby Ave., 1 km. west of Hansen Rd., near town of Los Alamitos. 7.5 Comment
  RSA0034815  Salix hindsiana var. parishiana Marcus E. Jones 1930-3-3 s.n. Orange Santa Ana Mountains. Comment
  LA208724  Salix laevigata Carl B. Wolf; 1932-4-8 2949 Orange Santa Ana Canyon, Rancho Santa Ana, near Santa Ana River, at SE corner of pear orchard in Botanic Garden 120.0 Comment
  RSA16482  Salix laevigata Percy C. Everett 1935-6-19 7225 Orange Main Divide Motorway, Bear Spring. 1220 Comment
  RSA6453  Salix laevigata Carl B. Wolf 1932-4-8 2949 Orange Rancho Santa Ana, near Santa Ana River, Santa Ana Canyon, at southeast corner of pear orchard. 120 Comment
  RSA734891  Salix laevigata A. C. Sanders, Mitch Provance 2008-5-20 35425 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago area, Santiago Creek Canyon, c. 3/4 mile blow Modjeska Canyon confluence. 345 Comment
  UC506449  Salix laevigata Carl Hedin and Joseph Ewan 1933-3-19 7684 Orange Comment
  RSA0071937  Salix laevigata CNPS Accuracy Assessment Team 2014-4-28 898 .2 Orange Black Star Canyon. Comment
  POM178868  Salix lasiolepis Marcus E. Jones 1930-2-2 s.n. Orange Near Laguna. Comment
  POM362784  Salix lasiolepis Louis C. Wheeler 1934-1-14 2365 Orange Aliso Creek near Laguna. 76 Comment
  RSA750119  Salix lasiolepis A. C. Sanders, Fred M. Roberts 2008-8-7 35985 Orange lower Weir Canyon, at narrow gorge c. 0.6 mi. above mouth of cyn at Irvine Ranch gate. 185 Comment
  UCR26632  Salix lasiolepis E. W. Lathrop 1966-4-6 6137 Orange Santa Ana Mtns., 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest 396 Comment
  RSA737855  Salix lucida subsp. lasiandra R. E. Riefner 2008-5-20 8 -108 Orange Irvine Ranch Reserve, North Irvine Ranch, S Donaldson Ranch ca. 0.75 mi along West Fork of upper Fremont Canyon. 405 Comment
  CAS-BOT-BC126310  Salix sessilifolia Helen D. Geis 1902-1-1 554 Orange Santa Ana River Comment
  CDA3168  Salsola australis R. E. Riefner Jr. 2007-1-2 16 -Jul Orange City of Lake Forest, along Bake Parkway at Dimension Road. Comment
  RSA734986  Salsola tragus A. C. Sanders, Fred M. Roberts, Amber O Neal 2008-5-9 35282 Orange Weir Canyon, along old dirt road c. 1.1 mi. E of Walnut Cyn Reservoir 300 Comment
  RSA5504  Salsola tragus C. B. Wolf 1932-6-28 3758 Orange Bryant Ranch: along western half of north boundary of 40 acre Valencia orange grove at Bryant Ave. and Hansen Road. 9 Comment
  RSA723482  Salsola tragus R. E. Riefner 2007-1-20 7 -16 Orange City of Lake Forest, along Bake Pwky. at Dimension Rd. 217 Comment
  RSA728671  Salsola tragus R. E. Riefner 2006-11-14 6 -672 Orange City of Irvine, San Diego Creek; vicinity of Campus Ave. at University Dr. 5 Comment
  RSA34605  Salvia apiana N. C. Cooper 1944-6-4 1329 Orange San Juan Canyon. 152 Comment
  RSA650627  Salvia apiana Daniel Truong 1991-5-13 28 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  RSA769343  Salvia apiana E. W. Lathrop 1974-6-27 7425 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  UCR193050  Salvia apiana A. C. Sanders, Fred M. Roberts 2008-6-17 35487 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  RSA697873  Salvia apiana Kenneth Beard s.n. Orange Canyon E of Olinda. Comment
  POM21174  Salvia leucophylla Helen D. Geis 1902-05 s.n. Orange Santa Ana Mtns: Santiago Canyon. Comment
Read comments
Dec 1 2016
  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
  RSA651802  Salvia leucophylla Shlomo Gat 1959-5-12 34 Orange Carbon Canyon. Comment
  CAS-BOT-BC229979  Salvia mellifera John Thomas Howell 1927-6-8 2460 Orange Southern Puente Hills, in the Santa Ana Canon [Canyon] 213 Comment
  RSA294797  Salvia mellifera Lyman Benson 1946-5-13 12098 Orange Corona del Mar, Pacfic Ocean drainage area 50 Comment
  RSA658202  Salvia mellifera T. A. Daubert 1991-5-19 652 Orange Tucker Wildlife Sanctuary, Modjeska Canyon inside sanctuary. Comment
  RSA733967  Salvia mellifera Keith E. Hoffmaster 1927-4-8 424 Orange Santa Ana Mountains. Comment
  UCD125591  Salvia mellifera P. B. Kennedy 1925-1-12 7 Orange Irvine Ranch. Comment
  UCR106293  Salvia mellifera B. G. Pitzer, M. Georgiady 1997-4-5 3064 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
  UCR131892  Salvia mellifera J. Mallory, V. McCoy 1995-7-3 6454- 127 Orange Santa Ana Mountains: Blind Canyon, c. 0.5 mi. NE of confluence w/ Santiago Canyon Wash; north of Irvine Lake. 300 Comment
  UCR223424  Salvia mellifera Dick Newell, Don Millar 2011-3-1 070 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Hicks Canyon Haul Road, above Jeffrey Rd. and below Hwy 241 crossing 175 Comment
  RSA434083  Salvia spathacea Unspecified 1920-6-2 s.n. Orange Laguna. 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
  RSA477580  Sambucus mexicana Claire Kibbe 1936-07 s.n. Orange Santa Ana Canyon. 1372 Comment
  RSA650821  Sambucus mexicana Daniel Truong 1991-5-13 6 Orange Irvine Regional Park, left field adjacent to main entrance, within 1/4 mile radius of 'closed area' Comment
  UC1294017  Sambucus mexicana E. K. Balls 1958-6-27 23289 Orange below tower lookout; Santa Ana Mts., Santiago Peak 1661 Comment
  UCR241900  Sambucus nigra subsp. caerulea Fred M. Roberts 2012-4-24 7519 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
  RSA542457  Samolus parviflorus Fred M. Roberts, Kathy Keane 1988-5-25 3987 Orange Ranch Mission Viejo: Lower Canada Chiquita, 2.5 kilometers SSE Medium Rancho Survey Mark. 82 Comment
  UCR209331  Sanicula arguta Fred M. Roberts 2009-4-11 6888 Orange Lomas de Santiago, Loma Ridge, upper Dripping Springs Canyon, 0.9 km northeast of Bee Peak and 1.2 km west-northwest of Dripping Springs 448 Comment
  UCR5125  Sanicula arguta Barbara T. Gittins, O. F. Clarke 1966-3-19 903 A Orange Pacific slope, Irvine Ranch, east of University of California Irvine campus, Newport Beach 91 Comment
  RSA761933  Sanicula arguta Robt. Allen 2005-4-30 12506 Orange Caspers Wilderness Park, East Ridge Trail. 175 Comment
  POM6326  Sanicula crassicaulis P. A. Munz, L. T. Street, G. Williams 1919-5-3 2636 Orange Santa Ana River Canyon. Comment
  RSA731972  Sanicula crassicaulis var. crassicaulis A. C. Sanders, Fred M. Roberts 2008-4-8 34768 Orange Lomas de Santiago, Loma Ridge, SSE of Santiago Reservoir on Loma Ridge Spur Rd., above Dripping Springs Loop Rd. 457 Comment
  RSA798601  Sanicula graveolens R. F. Thorne, E. W. Lathrop 1977-5-18 49738 Orange Santa Ana Mountains: summit of Santiago Peak 1733 Comment
  IRVC9348  Sarcostemma cynanchoides subsp. hartwegii R. Yarnell 159 Orange Santa Ana Canyon, Old RSA Botanical Garden. Chino Hills Comment
  RSA734917  Schinus molle A. C. Sanders, Fred M. Roberts 2008-6-17 35473 Orange Peninsular Range; Santa Ana Mtns: Lomas de Santiago, Augustine staging area near Limestone Canyon Rd. gate at Santiago Cyn Rd. 260 Comment
  RSA650236  Schinus molle Norman Willis 1948-2-8 s.n. Orange Santiago Creek Bed near Orange' 60 Comment
  CAS-BOT-BC243418  Schismus barbatus Ira L. Wiggins 1966-2-19 20458 Orange Hillside on W side of road, Carbon Canyon about 220 m. SW of Orange County Survey bench mark RCE 7872 Comment
  RSA732074  Schismus barbatus A. C. Sanders, Fred M. Roberts 2008-3-25 34561 Orange Peninsular Range; Santa Ana Mtns.: Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA232208  Schoenoplectus americanus James Henrickson 1970-7-24 4984 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
  RSA793257  Schoenoplectus americanus Robert F. Thorne 1984-1 s.n. Orange Newport Back Bay Comment
  JEPS83155  Schoenoplectus californicus L. M. Booth 1932-6-4 1139 Orange Newport Bay Comment
  RSA184313  Schoenoplectus californicus L. M. Booth 1932-8-4 s.n. Orange Santa Ana River, one mile from sea - sea level. 0 Comment
  RSA357141  Schoenoplectus maritimus Robert F. Thorne 1975-4-6 45578 Orange Head of Newport Bay. Comment
  RSA97  Schoenoplectus maritimus J. T. Howell 1927-6-30 237 Orange Bryant Ranch near Long Beach. 15 Comment
  UCD124853  Scrophularia californica R. S. Woglum 1932-4-16 s.n. Orange Trabuco Canyon. Comment
  RSA0012747  Scrophularia californica subsp. floribunda Fred M. Roberts 2012-5-10 7572 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
  RSA749356  Scrophularia californica subsp. floribunda Fred M. Roberts 2008-4-22 6919 Orange Lomas de Santiago: Loma Ridge, Lower Hicks Cyn.,along Haul Rd. near asphalt plant, 2.2 km ENE Rattlesnake Reservoir dam and 2.2 km WNW Bee Peak, Irvine Ranch Conservancy. 188 Comment
  POM9828  Scrophularia californica subsp. floribunda Philip A. Munz, R. D. Harwood 1920-4-24 3760 Orange Santa Ana Mountains, Sierra [Freemont] Canyon. 366 Comment
  RSA535087  Scutellaria tuberosa Steve Boyd 1991-5-9 6206 Orange Santa Ana Mountains, crest of range, S of Oak Flats at Beek s Place on Main Divide Truck trail at junction with Black Star Canyon Road. 854 Comment
  CAS-BOT-BC240064  Secale cereale Helen D. Geis 1902-3-1 s.n. Orange Foothills Santa Ana Comment
  RSA631395  Selaginella bigelovii Valerie Sosa, LeRoy Gross 1999-6-7 476 Orange West side of Modjeska Peak, along Main Divide Road. 1448 Comment
  SEINET10470958  Selaginella bigelovii John Thomas Howell 1927-7-22 Howell 2834 Orange Claymine Canyon, Santa Ana Mts., On hot and exposed opens between shrubs on very steep hillsides and in the cracks and crevices of sandstone outcrops, Upper Sonoran Zone. 185 Comment
  CAS-BOT-BC363479  Senecio californicus P. C. Everett 1935-3-15 6294 Orange Rancho Santa Ana, Santa Ana Canyon near Corner Post 3938 182 Comment
  RSA472903  Senecio californicus M. B. Dunkle 1935-3-3 4352 Orange San Juan Canyon. 457 Comment
  UC566656  Senecio californicus H. L. Mason 1926-4-25 2908 Orange five mi s Laguna Comment
  UCR142523  Senecio californicus D. E. Bramlet 2000-4-7 2948 Orange Peninsular Ranges: Santa Ana Mts. region, Upper Blind Canyon beside the SCE maintenance road and 762m west of the mainstem of Blind Canyon; 1.7 km east of Weir Canyon 108 Comment
  UCR128686  Senecio linearifolius Robert Noll 2003-8-20 s.n. Orange Southern Coastal region, Irvine, UCI campus, near intersection of Culver and Shady Canyon Roads 76 Comment
  UCR149494  Senecio linearifolius Scott D. White, Michael Honer 2004-5-17 10401 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
  SD231235  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/Bonita Canyon Dr. (=Culver Dr.) 70 Comment
  SD232203  Senecio linearifolius var. linearifolius Scott D. White 2003-7-7 9613 Orange Coastal plain: Irvine. UC Irvine Campus. Directly west of T-intersection of Shady Canyon Cr. w/ Bonita Canyon Dr. (= Culver Dr.). 70 Comment
  UCR237822  Senecio vulgaris Mark A. Elvin 2003-2-2 2294 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  RSA184082  Senecio vulgaris I. L. Wiggins 1966-2-18 20447 Orange 0.5 mile west of entrance to Rancho Santa Ana Comment
  RSA731936  Senna Fred M. Roberts, Sandra Leatherman 2007-11-27 6674 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
  RSA65740  Sesuvium verrucosum F. W. Peirson 1924-5-31 4655 Orange Laguna Canyon, near Laguna Beach 106 Comment
  UCSB52902  Sesuvium verrucosum Roberts, Fred 1983-9-29 Orange Irvine; San Joaquin Freshwater Marsh, 1.6 km. NNW UCI campus center 2 Comment
  CAS-BOT-BC438201  Sesuvium verrucosum D. L. Crawford 1916-8-1 s.n. Orange Laguna Beach Region. Laguna Canon [Canyon] Comment
  SEINET3562515 Image available Setaria Janet Wingate 1994-4-2 s.n. Orange Garden Grove Boulevard and Beach Boulevard, Garden Grove. Comment
  RSA728664  Setaria adhaerens R. E. Riefner 2004-8-27 4 -389 Orange City of Irvine; San Diego Creek at Woodbridge High School, S of intersection of Barranca Rd. and West Yale Loop Rd. 27 Comment
  IRVC1825  Setaria lutescens J. B. Anderson 1966-4-25 617 Orange Santa Ana: 20021 Birch Street. Southern Coastal Comment
  CDA2432  Setaria parviflora T. C. Fuller 1961-10-18 7174 Orange 2 miles east of Atwood. 0 Comment
  RSA0027437  Setaria parviflora Fred M. Roberts 2012-7-18 7676 Orange San Joaquin Hills: Newport Beach, Buck Gully, Buck Gully Trail, west end, just east of north terminus of Poppy Street and 2.1 km WNW summit of Pelican Hill. 37 Comment
  RSA734613  Setaria parviflora Keith E. Hoffmaster 1933-10-29 496 Orange Near Tustin 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
  CAS-BOT-BC240183  Setaria verticillata Ira L. Wiggins 1965-11-7 20361 Orange Vacant lot on west side of State College Blvd., near Troy High School, Fullerton Comment
  UCR152761  Sibara virginica D. E. Bramlet 2004-3-26 3542 Orange South Coast, Fairview Park in Costa Mesa, 183 m west of Canyon School and 366 m NW of intersection of Wilson & Canyon Dr. 24 Comment
  RSA789226  Sidalcea malviflora Naomi S. Fraga 2009-5-11 2715 Orange San Juan loop trail, Cleveland National Forest just west of Sugarloaf Spur Trail. 912 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
  UCR241076  Sidalcea malviflora Dick Newell, Don Millar 2013-4-30 328 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago; lower Hangman's Tree Canyon, 0.1 mi. west of Santiago Canyon Rd. 368 Comment
  RSA0040089  Sidalcea neomexicana Sandra Leatherman 2014-3-18 2014 -1 Orange Santa Ana Mountains region: South Orange County; northeast of Antonio Parkway and Sendero Way; adjacent to the Chiquita Reclamation Plant access road. 76 Comment
  RSA15944  Sidalcea neomexicana subsp. thurberi Percy C. Everett 1935-4-27 6691 Orange Bryant Ranch, NW corner of Bryant and Hansen Rd. [Los Angeles County]. 30 Comment
  CAS-BOT-BC384499  Silene antirrhina Helen D. Geis 1902-1-1 522 Orange Santiago Canon [Canyon] Comment
  SD241797  Silene antirrhina Mark A. Elvin 2003-3-30 2384 Orange South Coast: north side of UC Irvine Preserve, between core of UCI campus (E Peltason Dr.) and Hwy 73. 46 Comment
  RSA627534  Silene antirrhina Sandy Leatherman, Fred M. Roberts, B. Leatherman, Trish Smith 1998-5-23 14 Orange Black Star Canyon: Spur Road off of Black Star Canyon Road. 335 Comment
  IRVC17031  Silene gallica E. McRae 1965-4-8 Orange Costa Mesa Comment
  RSA749466  Silene gallica Fred M. Roberts 1999-4-22 5186 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
  RSA286  Silene gallica J. T. Howell 1928-2-25 834 Orange Near Bee Canyon, Rancho Santa Ana. 152 Comment
  RSA477884  Silene gallica Albert J. Perkins 1921-5-24 s.n. Orange Roadside. Comment
  SD72733  Silene laciniata F. R. Fosberg 1931-6-2 S 5137 Orange Silverado Canyon, Santa Ana Mountains. Comment
  UCR162779  Silene laciniata Scott D. White 1997-5-6 5041 Orange Peninsular Ranges; Santa Ana Mountains, Lomas de Santiago. Santiago Canyon area: Ridgetop road N and west of Bolero Lookout 488 Comment
  SBBG104049  Silene laciniata subsp. laciniata B. Pitzer, S. Hemstreet 1992-5-27 1958 Orange rd (3S04) to Blue Jay Group Cmpgrd, off State Hwy 74 (Ortega Hwy); ca. 2 mi (airline) W of El Cariso Cmpgrd 762 Comment
  IRVC360  Silene laciniata subsp. major A. S. Boughey, P. Pembrook 1965-7-15 1053 Orange Saddleback Mtn. below Modjeska Peak, Cleveland National Forest, ; chaparral. Santa Ana Mountains Comment
  POM422  Silene laciniata subsp. major P. A. Munz 1918-5-4 2200 Orange Laguna Beach Comment
  UCR232770  Silene multinervia Robt. L. Allen, Trisha Smith, Mike Kahle 2006-6-21 s.n. Orange Peninsular Range; Santa Ana Mtns., upper Fremont Canyon, ridge along SE, along unpaved Lakeview Rd. 638 Comment
  RSA0086988  Silene platyota Valerie L. Soza, LeRoy Gross 1999-6-10 514 Orange Santa Ana Mountains: Southwestern extension of Modjeska Peak, off Main Divide Road. 1524 Comment
  RSA4791  Sinapis arvensis James Snow s.n. Orange Plants of the Bryant Ranch, near Long Beach. Station # 3, Plant #5. Comment
  RSA184172  Sisymbrium irio I. L. Wiggins 1966-2-12 20430 Orange N. side of La Palma Ave. near Harbor Blvd., Anaheim. Comment
  RSA735968  Sisymbrium officinale Scott D. White, Justin Wood 2008-4-22 11906 Orange Telegraph Canyon Road, E of Carbon Canyon Regional Park. 152 Comment
  IRVC1190  Sisymbrium orientale D. Frees 1965-3-27 Orange Newport Beach; East Bluffs. Southern Coastal 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
  RSA336970  Sisyrinchium bellum N. C. Cooper 1944-6-4 1330 Orange San Juan Canyon. 152 Comment
  RSA539347  Sisyrinchium bellum Fred M. Roberts 1987-4-3 3348 Orange Irvine: San Joaquin Hills, Central Shadey Canyon, 2.8 kilometers NE Signal Peak. 109 Comment
  RSA651593  Sisyrinchium bellum D. Geisinger, R. Miller, E. Baldwin 1959-3-19 s.n. Orange Santa Ana Canyon Comment
  JEPS12062  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Creek Comment
  RSA603306  Solanum americanum Scott D. White, B. Leatherman 1997-6-12 5309 Orange East of San Juan Capistrano: San Juan Creek beteen Highway 74 bridge and Mission Vieja site, i.e. ca. 2 - 4 miles E of I-15 [Interstate 5] / Highway 74 junction. 46 Comment
  UC536954  Solanum americanum Lawrence M. Booth 1932-6-28 1213 Orange Bolsas Marsh Comment
  RSA599185  Solanum douglasii Scott D. White 1997-3-28 4828 Orange Above Modjeska Canyon, proposed water tank site. 425 Comment
  RSA747697  Solanum douglasii Fred M. Roberts 2008-4-16 6915 Orange Dana Point: Dana Point Headlands, CNLM Preserve, near Strands Road Gate, 0.8km WNW Marine Institute, Dana Point Harbor. 71 Comment
  UCR99872  Solanum douglasii Scott D. White 1993-3-5 1117 Orange Tustin. Marine Air Corps Air Station: SE of Red Hill Ave and NE of Barranca 15 Comment
  UCR136650  Solanum nigrum F. W. Peirson 1924-2-9 4523 Orange South Coast, between Wintersburg and the sea 9 Comment
  UCR139445  Solanum rostratum E. R. Johnson 1946-8-22 11531 Orange Santa Ana River Canyon, Rancho Santa Ana Botanic Garden 122 Comment
  RSA427386  Solanum umbelliferum A. M. Johnson 1934-4-15 4401 Orange Carmen's Laguna Beach. Comment
  RSA5320  Solanum umbelliferum B. D. Stark 1932-12-30 4475 Orange Rancho Santa Ana. River bottom below Mexican houses. 122 Comment
  RSA553111  Solanum umbelliferum Fred M. Roberts Jr. 1989-5-9 4342 Orange Santa Ana Mts: Gypsum Canyon, west fork, 5.6 km WNW Sierra Peak, c.a. 1 km S Highway 91. 146 Comment
  RSA80386  Solanum umbelliferum F. W. Peirson 1925-4-10 5737 Orange In Silverado Canyon. 610 Comment
  SD247738  Solanum xanti R. F. Thorne, C. W. Tilforth, E. W. Lathrop. 1977-4-27 49696 Orange Northern Santa Ana Mountains: Sierra Peak. Comment
  UCR141337  Soleirolia soleirolii Robert DeRuff 1990-8-2 394 Orange Southern Coast, Newport Beach, Neport Back Bay, Big Canyon, near Jamboree Road 11 Comment
  UCR232931  Soleirolia soleirolii R. E. Riefner Jr. 2011-7-1 11- 84 Orange South Coast, city of Newport Beach, beach area west of the end of Cameo Shores Road, south c. 1.5 mi from Poppy Avenue 2 Comment
  IRVC15142  Solidago californica A. S. Boughey 1968-7-9 398 Orange Santa Ana mtns: upper Santiago Canyon. Peninsular Ranges Comment
  RSA0012749  Sonchus asper Fred M. Roberts 2012-5-10 7574 Orange San Joaquin Hills: Buck Gully, south tributary, north slope Pelican Hill, just north of Pelican Hills Drive, 0.7 km N Pelican Hill summit. 154 Comment
  RSA0127412  Sonchus asper Fred M. Roberts 2016-3-17 8007 Orange San Joaquin Hills: City of Irvine, Bommer Canyon, east fork, 0.3 km ESE Cattle Camp near East Fork Trail. 152 Comment
  UCR237815  Sonchus asper Mark A. Elvin 2003-2-2 2293 Orange South Coast, San Joaquin Marsh, UCI campus SSE of intersection of Jamboree Blvd. and Campus Dr. 2 Comment
  JEPS88920  Sonchus oleraceus Rimo Bacigalupi, and L. Heckard, P. C. Hutchison 1962-3-16 8231 Orange 2 mi n Doheny Beach State Park (along U.S. 101) Comment
  RSA799950  Sonchus oleraceus D. M. Ray 2011-1-19 4 Orange South Coast: Santa Ana River: along right of way road just west of Least Tern Island. 0 Comment
  UC537123  Sonchus oleraceus Lawrence M. Booth 1932-7-21 1297 Orange Anaheim Marsh Comment
  RSA658626  Sonchus oleraceus John L. Stevens 1969-5-5 39 Orange On CSF campus, in flower bed. 158 Comment
  RSA719412  Sorghum bicolor Fred M. Roberts, Robert L. Allen 2006-10-8 6433 Orange San Juan Capistrano: San Juan Creek Flood Control Channel, c.a. 0.2 to 0.3km N Stonehill Dr. bridge and 1.1km SSE Marco Forster Jr. High Sch. 4 Comment
  UCR197681  Sorghum bicolor A. C. Sanders, Fred M. Roberts 2008-9-18 36066 Orange Peninsular Range; Santa Ana Mtns. Foothills, Lomas de Santiago, Santiago Creek Canyon c. 1 mile above the highway bridge 330 Comment
  CAS-BOT-BC235342  Sorghum halepense Carl B. Wolf 1932-6-13 3724 Orange Fullerton, Malvern & Nicholas Aves. 53 Comment
  CAS-BOT-BC235343  Sorghum halepense Le Roy Abrams 1901-6-12 1765 Orange Santa Ana Comment
  HSC10988  Sorghum halepense D. W. Snell 1964-3-24 7 Orange 1 mi. E of Brea on Birch St. Comment
  OBI22235  Spartina foliosa Peter H. Raven 1957-9-28 11379 Orange N limits of Surfside Comment
  POM262908  Spartina foliosa J. C. Roos 1937-9-1 427 Orange Seal Beach. Comment
  CAS-BOT-BC389926  Spergula arvensis Ira L. Wiggins 1966-3-5 20515 Orange Field about 1/2 mi. W. of El Toro Post Office, along Highway S-18 Comment
  RSA696548  Spergula arvensis Minor Warne 1934-03 s.n. Orange Laguna Canyon Forks Comment
Read comments
Jun 24 2009
  UCR163307  Spergularia B. G. Pitzer 1996-4-30 2791 Orange San Joaquin Hills, Crystal Cove State Park, south of City of Irvine on State Hwy 1 (Pacific Coast Hwy) 15 Comment
  IRVC20156  Spergularia bocconii R. L. Allen 1978-4-1 Orange 60m NE Golden Lantern [and Acapulco Rds.] jct. Dana Point Comment
  RSA0097838  Spergularia macrotheca F. W. Peirson 1923-3-26 4289 Orange Canada Salada. 0 Comment
  UCR103161  Spergularia macrotheca var. macrotheca Scott D. White 1997-3-26 4821 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
  CAS-BOT-BC390856  Spergularia marina L. R. Abrams 1917-6-23 6565 Orange Balboa Comment
  RSA0098517  Spergularia marina P. A. Munz, L. T. Street, G. Williams 1919-4-4 2682 Orange Laguna Canon. Comment
  RSA0098540  Spergularia marina James Henrickson 1970-7-25 5089 Orange 3.5 miles NW of Huntington Beach growing along graded inner slope of East Garden Grove-Wintersburg Flood Control Channel near Bolsa Chica Salt Marsh. 0 Comment
  RSA0098711  Spergularia villosa Fred M. Roberts, Laura Cohen 2000-3-24 5266 Orange Rancho Mission Viejo Land Conservancy: Tributary to Christanitos Cyn., Flagpole Meadow, upper Shady Canyon Trail, about 1.6 km NW Sycamore Gate. 170 Comment
  IRVC26698  Spiloxene serrata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3175 Orange UCI Arboretum Southern Coastal 15 Comment
  IRVC26740  Spiloxene serrata Mark A. Elvin, J. Liou, J. Carpenter, J. Nguyen 2004-3-8 3160 Orange UCI Arboretum Southern Coastal 15 Comment
  POM1127  Sporobolus airoides I. M. Johnston s.n. Orange Laguna Beach. Comment
  CDA14320  Sporobolus indicus F. Covely 1998-8-3 s.n. Orange South Coast; Vampus of Huntington Beach U.H.S.D., 525 Yorktown Ave., Huntington Beach. 0 Comment
  RSA769613  Stachys E. W. Lathrop 1974-6-27 7410 Orange 5 miles east of Trabuco Oaks, Trabuco Canyon, Cleveland National Forest. 396 Comment
  CAS-BOT-BC248292  Stachys ajugoides A. C. Sanders; Fred M. Roberts 2008-6-17 35488 Orange Peninsular Range; Santa Ana Mtns.: Lomas de Santiago, West Loma Ridge Spur Road c. 1 km east of Sheriff's Training Facility and 1.6 km SW of Irvine Lake, between hwys 241 and 261 357 Comment
  JEPS62963  Stachys ajugoides Alice King May, 1908 Orange near Tustin Comment
  POM202024  Stachys bullata L. M. Booth 1932-5-19 1080 Orange Newport Bay. Comment
  UCSB48198  Stachys rigida Roberts, Fred 1981-6-26 Orange Santa Ana mtns; Viejo Cyn., 0.5 km N Calif. Rte 74; 2.7 km E San Juan Guard Station 317 Comment
  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
  UCR261712  Stachys rigida subsp. quercetorum Dick Newell, Don Millar 2015-3-24 394 Orange South Coast, San Joaquin Hills, on Willow Canyon Trail 0.2 mi. west of Laguna Coast Wilderness Park entrance off Laguna Canyon Rd. 88 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
  CAS-BOT-BC374781  Stebbinsoseris heterocarpa D. E. Bramlet 2008-4-4 4174 Orange Foothills Santa Ana Mtns: Ridgeline above Limestone Cyn (East Loma Ridge), 1.57km west of Limestone Cyn. & 795m E of Round Cyn. 533 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
  OBI5678  Stellaria media Carl B. Wolf 1931-3-6 1854 Orange Trabuco camp ground, Trabuco cyn, W slope of the Santa Ana Mts 610 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
  RSA737532  Stellaria media Fred M. Roberts 2008-3-12 6730 Orange Dana Point: Dana Point Headlands CNLM Preserve, western side, c.a. 0.8 km W Marine Institute (Dana Point Harbor). 50 Comment
  RSA743497  Stellaria media Fred M. Roberts 2008-3-19 6780 Orange Dana Point: Dana Point Headlands, CNLM Preserve, 0.8km W Marine Institute, Dana Point Harbor. 45 Comment
  UCR191016  Stellaria media A. C. Sanders, Fred M. Roberts 2008-4-22 35033 Orange Peninsular Range; Santa Ana Mtns., Lomas de Santiago, Limestone Canyon, c. 2 miles SW of Silverado 396 Comment
  UCR149387  Stephanomeria diegensis Scott D. White, Matt Carlton 2003-11-20 9878 Orange South Coastal Plain, Santa Ana Mtn foothills. San Juan Creek in San Juan Capistrano 37 Comment
  UCR192109  Stipa coronata A. C. Sanders, Fred M. Roberts, Amber O'Neal 2008-5-9 35310 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, along fire line/bulldozer cut, c. 1.5 mi. east of Walnut Cyn Reservoir 346 Comment
  SD245221  Stipa miliacea R. F. Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49569 Orange Santa Ana Mountains: San Juan Canyon at Lower Picnic Camp, just below Ortega Highway (74). Along San Juan Creek. Comment
  UCR192484  Stipa pulchra A. C. Sanders, Fred M. Roberts 2008-3-25 34512 Orange Peninsular Range; Santa Ana Mtns., Weir Canyon, 4 miles ENE of Villa Park at SE edge of Anaheim Hills 259 Comment
  RSA0048676  Stipa pulchra Keith E. Hoffmaster 1935-3-17 551 Orange Near El Toro (Trabuco Road). Comment
  SEINET10603936  Stipa pulchra LeRoy R. Abrams 1903-4-18 Abrams 3269 Orange Trabuco canon, Capistrano. Comment
  POM12440  Stuckenia pectinata Philip A. Munz 1922-9-2 6348 Orange Ponds in Laguna Canyon 46 Comment
  IRVC24746  Stylocline gnaphalioides Fred M. Roberts 1986-4-29 2820 Orange Turtle Rock, above corner of Ridgerout Dr. and Turtle Rock Dr., 1.1km SE French Hill, Irvine 141 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
  UCR223962  Stylocline gnaphaloides Fred M. Roberts 2008-4-9 6856 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
  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
  UCR87110  Styrax officinalis var. redivivus Steve Boyd, Orlando Mistretta 1991-5-9 6205 Orange Santa Ana Mtns, Crest of range, south of Oak Flat at Beek's Place on Main Divide Truck Trail at jct with Black Star Canyon Road 854 Comment
  CAS-BOT-BC48096  Styrax redivivus C. B. Wolf; B. D. Stark 1932-12-19 10014 Orange Main divide of Santa Ana Mts., between Sierra Peak & Skyline Drive. 914 Comment
  POM301519  Styrax redivivus J. C. Roos 1937-5-10 2326 Orange East of San Juan Capistrano. Comment
  SD245496  Styrax redivivus Robert Thorne, E. W. Lathrop, W. Wisura 1977-7-8 49598 Orange Santa Ana Mountains: rocky ravine tributary to San Juan Canyon, along Ortega Highway (74) about 2 miles above San Juan Fire Station. Comment
  POM259534  Suaeda calceoliformis A. C. Keller 1938-7-29 s.n. Orange At entrance to Lido Isle, Newport Comment
  RSA5854  Suaeda calceoliformis C. B. Wolf 1932-6-28 3789 Orange Bryant Ranch, near fence., 100 ft. south of NW corner of NW 1/4 of S.E. 1/4 of sect 27. 9 Comment
  CAS-BOT-BC110389  Suaeda esteroa Peter H. Raven 1957-9-28 11383 Orange At north limits of Surfside. Comment
  RSA12653  Suaeda esteroa C. B. Wolf 1934-7-29 6043 Orange Newport Bay Comment
  UC537278  Suaeda esteroa L. M. Booth 1932-12-13 1373 Orange Newport Bay Comment
  UCD145368  Suaeda esteroa Louis C. Wheeler 1946-9-28 6385 Orange Newport Bay. Comment
  UC1971448  Suaeda esteroa Louis C. Wheeler 1946-9-28 6385 Orange Newport Bay. Comment
  POM202054  Suaeda moquinii L. M. Booth 1932-7-4 1247 Orange Newport Lagoon 3 Comment
  JEPS59882  Suaeda taxifolia Lawrence M. Booth 1932-8-5 1364 Orange Newport Bay Comment
  POM259503  Suaeda taxifolia A. C. Keller 1938-7-29 s.n. Orange On channel beach, 1/4 mile west of Corona del Mar 1 Comment
  RSA33486  Suaeda taxifolia N. C. Cooper 1942-11-9 883 Orange Balboa Comment
  RSA438591  Suaeda taxifolia